JPH11313465A - Motor with control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cooling capability and to downsize the overall structure of a motor with a control device. SOLUTION: This motor with a control device, in which the control device for driving and controlling the motor is mounted solidly with the motor, is provided with a plate heat pipe 32 having a cross section of roughly a U-shape, mounted in such a way that its middle part is brought into contact the bottom part of the outside circumference of the casing 27 of the control device 13 or a motor frame and that its end parts contact the side parts of the outside circumference. Then, a heating element 31 for the control device 13 is arranged at the bottom part inside the casing 27. This structure enables the heat generated from the heating element 31 to be radiated quickly through the plate heat pipe 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor.

[0002]

2. Description of the Related Art An example of this type of motor with a control device is as follows.
As shown in FIG. As shown in FIG. 65, a control device 3 including, for example, an inverter unit is provided on the bearing bracket 2 on the non-load side of the motor 1. A radiation fin 5 is attached to an outer surface of the case 4 of the control device 3 on the side opposite to the motor 1. The heating element 6 of the control device 3 is attached to the inner surface of the case 4 on the side opposite to the motor 1. And the anti-control device 3 for the radiation fins 5
On the side, a cooling fan device 7 is provided.

In the case of the above configuration, the heating element 6 of the control device 3
Is transmitted to the radiating fins 5 through the case 4, and is further radiated from the radiating fins 5 by blowing the cooling air generated by the cooling fan device 7 to the radiating fins 5. .

[0004]

In the above-mentioned conventional configuration, the reason why the heat radiation fins 5 and the cooling fan device 7 are required is that the heat generated from the heating element 6 of the control device 3 increases as the capacity of the motor 1 increases. This is to radiate this large amount of heat quickly. However, when the radiating fins 5 and the cooling fan device 7 are provided, the overall configuration of the motor with the control device becomes large.

[0005] For this reason, it has been demanded to improve the cooling (radiation) structure of the motor with the control device, thereby minimizing the overall structure of the motor with the control device by minimizing the need for radiation fins and cooling fan devices. I have. Also, in the configuration in which the radiation fins and the cooling fan device are provided, the radiation (radiation) fins are downsized by further improving the cooling (radiation) performance. There is a demand for miniaturizing the overall configuration of a motor with a control device.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a motor with a control device which can improve the cooling performance and reduce the size of the whole structure.

[0007]

According to the present invention, there is provided a motor with a control device according to the present invention, wherein a control device for driving and controlling the motor is integrally attached to the motor, and a case of the control device or an outer peripheral portion of a frame of the motor is provided. A plate-shaped heat pipe having a substantially U-shaped cross section is provided such that an intermediate portion is in contact with a bottom portion thereof and an end portion is in contact with a side portion of the outer peripheral portion, and the control is provided on an inner bottom portion of the case. It is characterized in that the heating element of the device is provided.

According to the above configuration, the heat generated from the heating element of the control device is transmitted to the intermediate portion of the plate-shaped heat pipe through the case, and is further quickly transmitted to the end portion of the plate-shaped heat pipe through the plate-shaped heat pipe. The heat is transmitted and dissipated. In the case of this configuration, since the plate-shaped heat pipe is used, the heat radiation performance is improved, and the heating element can be sufficiently cooled by natural cooling. Therefore, a radiation fin and a cooling fan device are not required, and the overall configuration of the motor with a control device is reduced in size.

Further, in the case of the above configuration, it is preferable to provide a radiation fin at an end portion of the plate-shaped heat pipe. Further, a plate-shaped heat pipe is spirally wound around the outer periphery of the case of the control device or the frame of the motor, and the winding start end and winding end of the plate-shaped heat pipe are connected to the outer periphery of the case or frame. More preferably, it is arranged in the upper part of the part.

Further, the heat radiation fins may be constituted by linear heat radiation fins having a plurality of plate-like fins arranged substantially in parallel, and the direction of the fin row of the linear heat radiation fins may be set to be oblique. This is a preferred configuration.
It is also a good configuration that the heat radiation fins are constituted by V-shaped heat radiation fins having a plurality of V-shaped plate-like fins.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for driving and controlling the motor is integrally attached to the motor. The present invention is characterized in that a plate-shaped heat pipe provided to contact the heat radiating portion is provided.

In this case, the control device and the motor are arranged side by side in the axial direction, and an intermediate portion of the plate-shaped heat pipe is brought into contact with a case of the control device. Preferably, the part is configured to contact the body of the motor.
It is further preferable to provide a radiation fin on a surface of the heat absorbing portion of the plate-shaped heat pipe which is in contact with the case of the control device on the side opposite to the heat absorbing portion.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for controlling the driving of the motor is integrally mounted on the motor, wherein an outer fan provided on a rotating shaft of the motor and the outer fan are covered. And a plate-shaped heat pipe provided so as to contact the heat absorbing portion with the case of the control device and to contact the heat radiating portion with the outer fan cover. Have.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction, and a heat absorbing portion is provided. It is characterized in that a plate-shaped heat pipe is provided so as to be brought into contact with a portion near the bearing on the control device side inside the main body of the motor and to make the heat radiation portion project outside the main body of the motor. .

According to another aspect of the present invention, there is provided a motor provided with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor. The motor is provided so as to be in contact with a case of the control device and is arranged substantially in parallel. A linear radiating fin having a plurality of plate-shaped fins, and an axial-flow fan device disposed on a tip side of the plate-shaped fins of the linear radiated fin and blowing cooling air toward each of the plate-shaped fins. Setting the rotation direction of the fan of the axial fan device in a clockwise direction (or a counterclockwise direction) toward each of the plate-like fins, and setting a row direction of each of the plate-like fins as an X-axis direction; When the longitudinal direction of each plate-like fin is the Y-axis direction and the axial direction of the axial flow fan device is the Z-axis direction, in the first quadrant (or the fourth quadrant) of the XY plane, Height up to Y axis Together it is gradually lowered toward the positive direction of the X axis, the third quadrant of the XY plane (or second quadrant)
Wherein the height of each of the plate-like fins is gradually reduced in the negative direction of the Y-axis or the X-axis. In the case of this configuration, it is a preferable configuration to provide a fin cover that covers at least a plate-shaped fin having a low height among the plate-shaped fins of the linear heat radiation fin.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor. The motor is provided so as to be in contact with a case of the control device and is arranged substantially in parallel. A linear radiating fin having a plurality of plate-shaped fins, and an axial flow that is disposed at a set interval on a tip side of the plate-shaped fin of the linear radiated fin and sends cooling air toward each of the plate-shaped fins. A fan device,
It is characterized in that a space portion between the plate-shaped fin and the axial fan device and a cover for covering the plate-shaped fin are provided.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction. A heat dissipating fin provided on the inner surface of the case of the control device on the side opposite to the motor, and a heat dissipating fin provided so as to be in contact with the outer surface of the case of the control device on the side opposite to the motor; A cooling fan that is provided on the side and is rotationally driven by the motor, and a cooling air generated by the cooling fan that is provided to cover the cooling fan, the case of the control device, the frame of the motor, and the radiating fins. And a wind guide plate for guiding the fins to the radiation fins.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction. A heat-radiating fin provided on the inner surface of the case of the control device on the side opposite to the motor, and a heat dissipating fin provided so as to be in contact with the outer surface of the case of the control device on the side opposite to the motor; A cooling fan device provided on the side opposite to the control device, the cooling fan device, the radiation fins, the case of the control device, and the cooling fan provided to cover the frame of the motor; It is characterized by having a wind guide plate for guiding the heat radiation fin.

According to another aspect of the present invention, there is provided a motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged at a predetermined interval in the axial direction. Disposing a heating element of the control device on the motor-side inner surface of the case of the control device, and contacting the motor-side outer surface of the control device case between the control device and the motor. A first linear radiating fin having a plurality of plate-like fins arranged substantially in parallel and a plurality of fins arranged substantially in parallel arranged in contact with an outer surface of the motor frame on the control device side; A second linear radiating fin having a plate-like fin of
It is characterized in that a cooling fan device provided between the two linear radiating fins is provided.

In this configuration, the longitudinal direction of the plate-shaped fins of the first linear radiating fins and the longitudinal direction of the plate-shaped fins of the second linear radiating fin are orthogonal to each other. Is preferred.

According to another motor with a control device of the present invention, a control device for controlling the drive of the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction. A heat-radiating fin provided on the inner surface of the case of the control device on the side opposite to the motor, and a heat dissipating fin provided so as to be in contact with the outer surface of the case of the control device on the side opposite to the motor; An axial flow cooling fan device having a blade fan larger in diameter than the radiation fins is provided on the side opposite to the control device.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a motor with an inverter unit will be described below with reference to FIGS. First, FIG. 2 is a longitudinal sectional view showing a schematic overall configuration of a motor with an inverter unit. As shown in FIG. 2, the motor 11 with an inverter unit is a motor 12 composed of, for example, an induction motor.
And an inverter unit 13 which is a control device for controlling the drive of the motor 12.

The motor main body 14 of the motor 12 comprises a cylindrical frame 15 and bearing brackets 16 and 17 provided at both ends of the frame 15. A stator 20 including a stator core 18 and a winding 19 is disposed inside the frame 15.
The bearings 21, 22 attached to the respective center portions of the bearing brackets 16, 17 respectively have a rotating shaft 24 of a rotor 23.
Are rotatably supported. The rotor 23 has a rotor core 25 and a rotor conductor 26. And
The left end of the rotating shaft 24 in FIG. 2 protrudes leftward from the bearing bracket 16, and this protruding portion serves as an output shaft for a load. The frame 15 and the bearing brackets 16 and 17 are made of, for example, a casting or a steel plate.

The inverter unit 13 includes a cylindrical case 27 having an outer diameter substantially equal to the outer diameter of the motor body 14, and an inverter device 28 accommodated in the case 27. The case 27 is formed of a metal plate having good heat conductivity, such as aluminum. The case 27 is mounted on the right side surface of the bearing bracket 17 on the non-load side of the motor 12. As a result, the inverter unit 13
2 are integrated so as to be arranged in the axial direction.

The inverter device 28 includes a printed wiring board 29, various electronic components 30 mounted on the printed wiring board 29, and a heating element 31 such as a switching element. The inverter device 28 includes a DC power supply circuit, an inverter main circuit, a control circuit, and the like as electric circuits.

Here, the heating element 3 of the inverter device 28
1 is arranged so as to contact the inner bottom of the case 27. Thereby, the heat generated from the heating element 31 is configured to be smoothly transmitted to the bottom wall of the case 27.

The case 2 of the inverter unit 13 will now be described.
As shown in FIGS. 1 and 2, two plate-shaped heat pipes 32 having a substantially U-shaped cross section are attached to the outer peripheral portion of 7, for example, by bonding. Each plate-shaped heat pipe 32 is provided such that an intermediate portion thereof is in contact with the bottom of the outer peripheral portion of the case 27 and both end portions are in contact with side portions of the outer peripheral portion of the case 27. in this case,
An intermediate portion of the plate-shaped heat pipe 32 serves as a heat absorbing portion, and both end portions serve as heat radiating portions.

As shown in FIGS. 2 and 3, two plate-shaped heat pipes 32 having a substantially U-shaped cross section are also attached to the outer peripheral portion of the frame 15 of the motor 12, for example, by bonding. Each plate-shaped heat pipe 32 is provided such that an intermediate portion thereof is in contact with a bottom portion of the outer peripheral portion of the frame 15 and both end portions are in contact with side portions of the outer peripheral portion of the frame 15. In this case, an intermediate portion of the plate-shaped heat pipe 32 serves as a heat absorbing portion, and both end portions serve as heat radiating portions. It should be noted that instead of bonding the plate-shaped heat pipe 32 to the case 27 and the frame 15, the plate-shaped heat pipe 32 may be configured to be screwed using an attachment member.

Here, the plate-shaped heat pipe 32
Will be briefly described with reference to FIGS. 4 and 5. The plate-shaped heat pipe 32 has an outer shell 33.
And a filler 34 made of a member having good thermal conductivity filled in the outer shell 33, a meandering hollow portion 35 formed in the filler 34, and sealed in the hollow portion 35. And a refrigerant 36. This plate-shaped heat pipe 32 has no wick, and is configured so that heat transfer is performed by the refrigerant in the hollow portion 35 vibrating in the vertical direction during evaporation. In the present embodiment, the plate-shaped heat pipe 32 having the above-described configuration is bent so as to form a U-shaped cross section (more specifically, a semicircular cross section).
It is attached to the outer periphery of the case 27 and the frame 15.

Next, the operation of the above configuration will be described.
In the case of the above configuration, a large amount of heat generated from the heating element 31 of the inverter device 28 is transmitted to the intermediate portion of the plate-shaped heat pipe 32 via the bottom wall of the case 27. Subsequently, the heat transmitted to the intermediate portion of the plate-shaped heat pipe 32 is quickly transported to both end portions of the plate-shaped heat pipe 32, and is radiated from these end portions to the outside air (outside). I have.

The heat generated by the motor 12 is transmitted to an intermediate portion of the plate-shaped heat pipe 32 via the bottom wall of the frame 15. Then, the heat transmitted to the intermediate portion of the plate-shaped heat pipe 32 is quickly transported to both end portions of the plate-shaped heat pipe 32, and is radiated from the end portions to the outside air (outside). .

According to the present embodiment having such a configuration, the heat from the heating element 31 of the inverter device 28 is radiated by using the plate-shaped heat pipe 32 having a substantially U-shaped cross section. The performance is improved and the heating element 31
Can be sufficiently cooled by natural cooling. Therefore,
Unlike the conventional configuration (FIG. 65), the radiation fins 5 and the cooling fan device 7 are not required, and the overall configuration of the motor 11 with the inverter unit can be reduced.

In the above-described embodiment, two plate-shaped heat pipes 32 are attached to the outer peripheral portions of the case 27 of the inverter unit 13 and the frame 15 of the motor 12, respectively. However, the present invention is not limited to this. One or three or more plate-shaped heat pipes 32 may be attached. In the above embodiment, the plate-like heat pipes 3 are respectively provided on the outer periphery of the case 27 of the inverter unit 13 and the frame 15 of the motor 12.
2, the plate heat pipe 32 may be attached only to the outer periphery of the case 27. Further, the plate-shaped heat pipe 32 may be attached to only the outer peripheral portion of the frame 15 of the motor 12.

FIGS. 6 to 8 show a second embodiment of the present invention, and the points different from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the second embodiment, as shown in FIG. 7, the case 37 of the inverter unit 13 is configured so that the cross-sectional shape orthogonal to the axial direction is rectangular.
As shown in FIG. 8, the frame 38 of the motor 12 is configured such that its cross-sectional shape orthogonal to the axial direction is substantially rectangular.

A plate-like heat pipe 39 bent so as to have a substantially U-shaped cross section is formed by connecting an intermediate portion thereof closely to the bottom of the outer peripheral portion of the case 37 via a spacer 40, Are attached so as to be in close contact with both sides of the outer periphery of the case 37. The spacer 40 is made of a plate material having good heat conductivity such as aluminum. In this case, a mounting hole is formed in the bottom wall portion of the case 37, and the heating element 31 is disposed so as to fit in the mounting hole. Further, the mounting hole is a spacer 4
0, and the heating element 31 is
It is configured to be close to. Thereby, the heat generated from the heating element 31 is smoothly transmitted to the intermediate portion of the plate-shaped heat pipe 39 through the spacer 40.

Further, a plate-like heat pipe 39 having a similar shape is also provided on the outer peripheral portion of the frame 38 of the motor 12.
Are mounted so that the intermediate portion thereof is in close contact with the bottom of the outer peripheral portion of the frame 38 and the both end portions are in close contact with both side portions of the outer peripheral portion of the frame 38.

Further, two radiating fins 41 are vertically arranged on the outer surface of the end portion of each plate-shaped heat pipe 39 (that is, the portion corresponding to the side wall of the case 37 and the frame 38). Has been established. As shown in FIG. 6, the radiation fins 41 are connected to a substrate 41b and the substrate 4b.
A plurality of plate-like fins 41 protruding from 1b and arranged substantially in parallel
a) and a linear radiating fin composed of a. And
At four corners of the substrate portion 41b of the radiation fin 41, mounting holes 4 are provided.
1c is formed, and the screw is passed through the mounting hole 41c to be fastened and fixed to the case 37 or the frame 38.

In the case of this configuration, between the substrate portion 41b of the radiation fin 41 and the case 37, or between the radiation fin 41
The plate-shaped heat pipe 39 is interposed and fixed between the substrate portion 41b and the frame 38. Further, the radiation fins 41 are arranged such that the longitudinal direction of the plate-like fins 41a of the radiation fins 41 is directed in the vertical direction.
Is installed.

The configuration of the second embodiment other than the above is the same as the configuration of the first embodiment. Therefore, in the second embodiment, substantially the same operation and effect as in the first embodiment can be obtained. In particular, in the second embodiment, the radiation fins 41 are disposed on the outer surface of the end portion of the plate-shaped heat pipe 39, so that the heat radiation performance when radiating heat from the plate-shaped heat pipe 39 to the outside air is further improved. . For this reason, the heating element 31 can be further cooled.

In the second embodiment, the radiation fins 41 are used.
Since the longitudinal direction of the plate-like fins 41a is configured to be directed in the up-down direction, the outside air (naturally-cooled wind) is cooled by the respective plate-like fins 41a of the radiation fins 41 during natural cooling.
And the heat exchange between the plate-like fin 41a and the outside air is favorably performed. Therefore, it is possible to sufficiently cool the heating element 31 of the inverter unit 13 by natural cooling.

FIGS. 9 and 10 show a third embodiment of the present invention. Differences from the second embodiment will be described. The same parts as those in the second embodiment are denoted by the same reference numerals. In the third embodiment, the heat dissipating fins 41 are attached to the case 37 and the frame 38 such that the longitudinal direction of the plate-like fins 41a of the heat dissipating fins 41 is oriented in the horizontal direction in FIG. The configuration of the third embodiment other than that described above is the same as the configuration of the second embodiment.

Therefore, in the third embodiment, almost the same operation and effect as in the second embodiment can be obtained. Especially,
In the third embodiment, the motor 11 with the inverter unit
When the fins are installed in a vertical state, the longitudinal direction of the plate-like fins 41a of the radiating fins 41 is oriented in the up-down direction, so that the outside air (natural cooling wind) is The plate-shaped fin 41a is sufficiently hit. Thereby, the cooling performance of the radiation fins 41 is improved.

FIGS. 11 and 12 show a fourth embodiment of the present invention, and the points different from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the fourth embodiment, a long plate-like heat pipe 42 is connected to the case 27 of the inverter unit 13.
And the outer periphery of the frame 15 of the motor 12 are spirally wound. In the case of this configuration, the plate-shaped heat pipe 42 is brought into close contact with the outer peripheral portion of the case 27 and attached by, for example, bonding. The winding start end 42 a and the winding end end of the plate-shaped heat pipe 42 are disposed in an upper portion of the outer peripheral portions of the case 27 and the frame 15.

The configuration of the fourth embodiment other than the above is the same as the configuration of the first embodiment. Therefore, in the fourth embodiment, substantially the same operation and effect as in the first embodiment can be obtained. In particular, in the fourth embodiment, since the plate-shaped heat pipe 42 is spirally wound around the outer periphery of the case 27 (and the frame 15), the case 27 (and the frame 15) of the plate-shaped heat pipe 42 is formed. The portion of the plate-shaped heat pipe 42 that is in contact with the side portion and the upper portion of the outer peripheral portion of the case 27 (and the frame 15) is a heat dissipating portion. . For this reason, since a plurality of sets of the heat absorbing portion and the heat radiating portion are alternately provided in the plate-shaped heat pipe 42, the heat radiating property is further improved.

In the above-described embodiment, the plate-shaped heat pipe 42 is spirally wound around the outer periphery of the case 27 and the frame 15.
May be spirally wound only on the outer peripheral portion of the motor, or may be spirally wound only on the outer peripheral portion of the frame 15 of the motor 12.

FIGS. 13 and 14 show a fifth embodiment of the present invention, and the points different from the fourth embodiment will be described. The same parts as those of the fourth embodiment are denoted by the same reference numerals. In the fifth embodiment, the case 43 of the inverter unit 13 is configured such that its cross section orthogonal to the axial direction has a substantially pentagonal shape. The plate-shaped heat pipe 42 is spirally wound around the outer periphery of the case 43 having such a shape. The configuration of the fifth embodiment other than the above is the same as the configuration of the fourth embodiment. Therefore, in the fifth embodiment, substantially the same operation and effect as in the fourth embodiment can be obtained.

FIGS. 15 and 16 show a sixth embodiment of the present invention, and the points different from the fourth embodiment will be described. In the sixth embodiment, the case 37 of the inverter unit 13 is configured such that the cross-sectional shape orthogonal to the axial direction is rectangular. The plate-shaped heat pipe 42 is spirally wound around the outer periphery of the case 37 having such a shape. Further, a spacer 40 is provided between the plate-shaped heat pipe 42 and the outer peripheral portion of the case 37.
Is arranged.

Further, a portion of the plate-shaped heat pipe 42 corresponding to the side of the outer periphery of the case 37 (radiator).
Radiating fins 41 made of linear radiating fins
Is arranged. The configuration of the sixth embodiment other than that described above is the same as the configuration of the fourth embodiment. Therefore, in the sixth embodiment, substantially the same operation and effect as in the fourth embodiment can be obtained. In particular, in the sixth embodiment, since the heat radiation fins 41 are provided at the heat radiation part of the plate-shaped heat pipe 42, the heat radiation (cooling) performance of the plate-shaped heat pipe 42 can be further improved.

FIGS. 17 and 18 show a seventh embodiment of the present invention, and the differences from the second embodiment will be described. In the seventh embodiment, the plate-shaped fins 44a of the radiation fins 44 composed of linear radiation fins are configured so that the longitudinal direction is oblique. The configuration of the seventh embodiment other than this is the same as the configuration of the second embodiment. Therefore, also in the seventh embodiment, the second
It is possible to obtain substantially the same operation and effects as those of the embodiment. Particularly, in the seventh embodiment, the plate-like fins 4 of the radiation fins 44 are used.
Since the longitudinal direction of 4a is an oblique direction, the outside air (natural cooling wind) is generated regardless of whether the motor 11 with the inverter unit is installed horizontally or vertically. Each plate-like fin 44a of the radiation fin 44
And the heat exchange between the plate-like fins 44a and the outside air is favorably performed. In other words,
In the case of the seventh embodiment, a motor 1 with an inverter unit
The degree of freedom of the installation mode 1 is increased.

FIGS. 19 and 20 show an eighth embodiment of the present invention, and the differences from the seventh embodiment will be described. In the eighth embodiment, as shown in FIG. 19, a plurality of V-shaped plate-like fins 45a are arranged substantially in parallel on a substrate 45b and arranged so as to be symmetrical in the vertical and horizontal directions, as shown in FIG. V-shaped heat radiation fins 45 are provided at the end of the plate-shaped heat pipe 39. In this case, the size of the V-shaped radiating fins 45 is substantially the same as the size of the side of the case 37, and is screwed to the case while covering the end portions of the two plate-shaped heat pipes 39, for example. It is fixed by.

The configuration of the eighth embodiment other than the above is the same as the configuration of the seventh embodiment. Therefore, in the eighth embodiment, substantially the same operation and effect as those of the seventh embodiment can be obtained.

FIGS. 21 and 22 show a ninth embodiment of the present invention, and the points different from the first embodiment will be described. The same parts as those of the first embodiment are denoted by the same reference numerals. In the ninth embodiment, the inverter unit 13 is disposed on the outer peripheral portion of the frame 15 of the motor 12 via the terminal block 46. And the inverter unit 1
3 between the case 27 and the frame 15 of the motor 12
A plate-shaped heat pipe 47 having a substantially U-shaped cross section is provided. In this case, the plate-shaped heat pipe 47
The upper surface of the heat absorbing portion 47a, which is one end of the plate, is in close contact with the case 27, and the lower surface of the heat radiating portion 47b, which is the other end of the plate-shaped heat pipe 47, is in close contact with the frame 15.

The opposite end of the rotating shaft 24 on the non-load side is projected rightward from the bearing bracket 17, and the outer fan 4 is attached to this end.
8 are provided. Further, an outer fan cover 49 that covers the outer fan 48 is attached to the motor body 14.

In the case of this configuration, the heat generated from the heating element 31 of the inverter device 28 is transmitted to the heat absorbing portion 47a of the plate-shaped heat pipe 47 via the case 27, and subsequently, the heat radiating portion 47b of the plate-shaped heat pipe 47 Heat transported to Then, the cooling air generated by the outer fan 48 is guided by the outer fan cover 49 and blows onto the frame 15 and the plate-shaped heat pipe 47. Thus, the heat transferred to the heat radiating portion 47b of the plate-shaped heat pipe 47 is quickly radiated by the cooling air.

The configuration of the ninth embodiment other than that described above is the same as the configuration of the first embodiment. Therefore, in the ninth embodiment, substantially the same operation and effect as in the first embodiment can be obtained.

In the ninth embodiment, the outer fan 48 is provided. However, if the capacity of the motor 12 is small and natural cooling is sufficient, the outer fan may not be provided. Further, in the ninth embodiment, the heat absorbing portion 47a of the plate-shaped heat pipe 47 is used.
May be configured to cover the lower surface with a heat insulating material.

On the other hand, in the ninth embodiment, the heat radiating portion 47b of the plate-shaped heat pipe 47 is brought into close contact with the frame 15, but the present invention is not limited to this. For example, as in the tenth embodiment shown in FIG. 23, the mounting flange 50 provided integrally with the bearing bracket 16 on the load side of the motor 12 is provided.
Alternatively, the heat radiation portion 51b of the plate-shaped heat pipe 51 may be attached so as to be in close contact.

Further, as in the eleventh embodiment shown in FIG. 24, the heat radiating portion 52b of the plate-shaped heat pipe 52 may be arranged in close contact with the outer surface of the bearing bracket 17 on the non-load side of the motor 12. good. Further, as in the twelfth embodiment shown in FIG. 25, the lower surface of the heat radiating portion 53b of the plate-shaped heat pipe 53 is closely contacted with the outer surface of the short cylindrical outer peripheral portion 49a of the outer fan cover 49. May be. Further, as in the thirteenth embodiment shown in FIG. 26, the upper surface of the heat radiating portion 53b of the plate-shaped heat pipe 53 may be in close contact with the inner surface of the outer peripheral portion 49a of the outer fan cover 49.

FIGS. 27 and 28 show a fourteenth embodiment of the present invention, and the differences from the ninth embodiment will be described. The same parts as those in the ninth embodiment are denoted by the same reference numerals. In the fourteenth embodiment, the radiation fins 54 composed of linear radiation fins are disposed on the lower surface of the heat absorbing portion 47a of the plate-shaped heat pipe 47. Other 14th
The configuration of this embodiment is the same as the configuration of the ninth embodiment.

Therefore, also in the fourteenth embodiment, the ninth
It is possible to obtain substantially the same operation and effects as those of the embodiment. In particular, in the fourteenth embodiment, the plate-shaped heat pipe 47
Since the radiation fins 54 are provided on the lower surface of the heat absorbing portion 47a, the cooling (radiation) performance of the plate-shaped heat pipe 47 can be further improved. FIG. 29 shows a fifteenth embodiment of the present invention. Therefore, the difference from the second embodiment will be described. The same parts as those of the second embodiment are denoted by the same reference numerals. In the fifteenth embodiment, the intermediate portion (heat absorbing portion) of the plate-shaped heat pipe 55 having a substantially U-shaped cross section is brought into contact with the right side wall of the case 37 of the inverter unit 13 via the spacer 40. One end (radiator) of the plate-shaped heat pipe 55 is brought into contact with the bottom wall of the case 37 and the frame 38, and the other end (radiator) is brought into contact with the upper wall of the case 37 and the frame 38. .

Further, the heating element 31 of the inverter device 28
Is housed in a mounting hole formed in the right side wall portion of the case 37 so as to contact (closely contact) the spacer 40. The configuration of the fifteenth embodiment other than that described above is the same as the configuration of the second embodiment. Therefore, the fifteenth
In this embodiment, substantially the same operation and effect as in the second embodiment can be obtained.

FIG. 30 shows a sixteenth embodiment of the present invention, and the differences from the second embodiment will be described. In the sixteenth embodiment, one end portion (heat absorbing portion) of the plate-shaped heat pipe 56 is connected to the case 37 of the inverter unit 13.
Contact the bottom wall. Then, the other end (radiator) of the plate-shaped heat pipe 56 is brought into contact with the bottom wall of the frame 38 of the motor 12 and is brought into contact with the mounting flange 50 provided integrally with the bearing bracket 16 on the load side. It is composed. Further, the heating element 31 of the inverter device 28 is disposed on the inner bottom of the case 37.

The structure of the sixteenth embodiment other than the above is
The configuration is the same as that of the second embodiment. Therefore,
Also in the sixteenth embodiment, substantially the same operation and effect as in the second embodiment can be obtained.

FIG. 31 shows a seventeenth embodiment of the present invention, and the differences from the sixteenth embodiment will be described.
In the seventeenth embodiment, one end portion (heat absorbing portion) of the plate-shaped heat pipe 57 is arranged near the non-load-side bearing 22 by contacting the inner surface of the bearing bracket 17 on the non-load side of the motor 12. ing. Then, the other end (radiator) of the plate-shaped heat pipe 57 is connected to the frame 3 of the motor 12.
8 penetrates through the bottom wall and projects outward.

The configuration of the seventeenth embodiment other than the above is
The configuration is the same as that of the sixteenth embodiment. Therefore, in the seventeenth embodiment, substantially the same operation and effect as in the sixteenth embodiment can be obtained. In particular, in the seventeenth embodiment, since the heat absorbing portion of the plate-shaped heat pipe 57 is disposed near the bearing 22 on the non-load side of the motor 12, the bearing 22 on the non-load side can be sufficiently cooled. Thus, the temperature of the bearing 22 can be reduced.

Here, since the inverter unit 13 is attached to the bearing bracket 17 on the non-load side, it is difficult to cool the bearing 22 on the non-load side. Therefore, with the configuration as in the seventeenth embodiment, the bearing 22 on the non-load side can be sufficiently cooled, and the life of the bearing 22 can be extended.

In the seventeenth embodiment, the other end of the plate-shaped heat pipe 57 is configured to protrude outside the frame 38 of the motor 12, but the present invention is not limited to this. For example, as in the eighteenth embodiment shown in FIG. 32, the other end (radiator) of the plate-shaped heat pipe 57 is brought into contact with the bottom wall of the frame 15 of the motor 12 and the load-side bearing bracket 16 May be configured to be brought into contact with a mounting flange 50 provided integrally with the mounting flange 50. In the eighteenth embodiment, substantially the same operation and effect as in the seventeenth embodiment can be obtained.

FIG. 33 and FIG. 34 show a nineteenth embodiment of the present invention, and the points different from the second embodiment will be described. The same parts as those of the second embodiment are denoted by the same reference numerals. In the nineteenth embodiment, a heat radiation fin 61 and a fan device 62 are provided instead of the plate-shaped heat pipe. Specifically, the radiation fins 61 are attached to the right side surface of the case 37 of the inverter unit 13 in FIG. 33 (that is, one side view in the axial direction). As shown in FIG. 34, the radiation fins 61 are
It is composed of linear radiating fins composed of a plurality of plate-like fins 61a arranged substantially in parallel.

The fan device 6 is located on the right side of the radiating fin 61 in FIG. 33 (on the tip side of the plate-like fin 61a).
2 are provided. The fan device 62 is an axial fan device having a built-in fan motor.
a and a fan cover 62b that covers the fan 62a.

The heat generating element 31 of the inverter device 28 is disposed on the right side wall in the case 37 in FIG. In this case, the heat generated from the heating element 31 is configured to be quickly transmitted to the radiation fins 61 via the side wall of the case 37.

The shape of each end of the plurality of plate-like fins 61a of the linear radiating fin 61 is configured as described below. First, the axial fan device 62
Of the fan 62a is set clockwise toward each plate-like fin 61a. Then, as shown in FIG. 34, the row direction of each plate-like fin 61a is defined as the X-axis direction,
The longitudinal direction of each plate-like fin 61a is defined as the Y-axis direction, and the axial direction of the axial flow fan device 62 (that is, the tip direction of each plate-like fin 61a) is defined as the Z-axis direction.

Then, in the first quadrant of the XY plane, the height of each plate fin 61a is gradually reduced in the positive direction of the Y axis, and in the third quadrant of the XY plane, the height of each plate fin 61a is reduced. The height was gradually reduced in the negative direction of the Y axis. In the case of this configuration, when the height of each plate-like fin 61a is reduced, the tip of each plate-like fin 61a is cut obliquely.

With this configuration, the axial fan device 6
2 allows the cooling air generated to smoothly enter between the plate-like fins 61a. For this reason, the plurality of plate-like fins 6
It is difficult for the flow of the cooling air to separate from the surface of the plate-like fin 61a during 1a, the flow velocity of the cooling air is increased, and the effective heat transfer area is increased. As a result, the cooling performance of the radiating fins 61 is improved, so that the temperature rise of the heating element 31 can be suppressed.

When the heights of the plate-shaped fins of the heat radiation fins are the same as in the conventional configuration (see FIG. 65), the cooling air generated by the axial-flow fan device is supplied to each plate of the heat radiation fins. There is a situation that it is difficult to enter between the shape fins. This is because a swirl component exists in the flow of the cooling air generated by the axial fan device. That is, since there is a swirling flow component in the cooling air, a stagnation region is generated between the plate-like fins, and the effective heat transfer area is reduced. In this case, the cooling performance of the radiating fins is reduced, so that the entire radiating fins must be enlarged in order to obtain the required cooling performance.

On the other hand, according to the nineteenth embodiment, even if there is a swirl component in the cooling air generated by the axial fan device 62, the cooling air smoothly flows between the plate-like fins 61a. I will enter. For this reason, the plate-like fin 61a
Since the flow of the cooling air is less likely to be separated from the surface of the plate-like fin 61a, the flow velocity of the cooling air is increased, and the effective heat transfer area is increased, so that the cooling performance of the radiation fin 61 is improved. As a result, the heat radiation fins 61 can be downsized, and the overall configuration of the motor 1 with the inverter unit can be downsized. The configuration of the nineteenth embodiment other than that described above is the same as the configuration of the second embodiment.

In the nineteenth embodiment, the rotation direction of the fan 62a of the axial fan device 62 is set clockwise toward each plate fin 61a. The rotation direction is determined by each plate fin 61a.
May be configured to be set in the counterclockwise direction toward. In the case of this configuration, in the fourth quadrant of the XY plane, the height of each plate-like fin 61a is gradually reduced in the positive direction of the Y axis, and in the second quadrant of the XY plane, It is preferable that the height of the fins 61a is gradually reduced in the negative direction of the Y-axis. With this configuration, it is possible to obtain substantially the same operation and effect as the nineteenth embodiment.

FIG. 35 and FIG. 36 show a twentieth embodiment of the present invention, and different points from the nineteenth embodiment will be described. The same parts as those in the nineteenth embodiment are denoted by the same reference numerals. In the twentieth embodiment, in the first quadrant of the XY plane, the height of each plate fin 61a is gradually reduced toward the zero point of the X axis, and in the third quadrant of the XY plane, the height of each plate fin 61a is gradually reduced. The height of 61a is gradually reduced toward the zero point of the X-axis. In the case of this configuration, when reducing the height of each plate-like fin 61a, specifically, a notch 61c having a different depth dimension is formed at the tip of each plate-like fin 61a.

The configuration of the twentieth embodiment other than the above is the same as the configuration of the nineteenth embodiment. Therefore, in the twentieth embodiment, substantially the same operation and effect as in the nineteenth embodiment can be obtained.

FIGS. 37 and 38 show a twenty-first embodiment of the present invention, and the points different from the nineteenth embodiment will be described. The same parts as those in the nineteenth embodiment are denoted by the same reference numerals. In the twenty-first embodiment, in the fourth quadrant of the XY plane, the height of each plate-like fin 61a is gradually increased in the negative direction of the Y axis, and
In the quadrant, the height of each plate-like fin 61a is gradually increased in the positive direction of the Y-axis.

In the case of this configuration, when increasing the height of each plate fin 61a, specifically, each plate fin 6a
It was configured such that the tip of 1a was oblique. Further, the portion where the height of each plate-like fin 61a is increased and the portion where the height of each plate-like fin 61a is reduced are connected to each other by one inclined straight line. The configuration of the twenty-first embodiment other than that described above is the same as the configuration of the nineteenth embodiment. Therefore, also in the twenty-first embodiment, the nineteenth embodiment
It is possible to obtain substantially the same operation and effects as those of the embodiment.

FIGS. 39 and 40 show the twenty-second embodiment of the present invention, and the points different from the nineteenth embodiment will be described. The same parts as those in the nineteenth embodiment are denoted by the same reference numerals. In the twenty-second embodiment, the radiation fins 6
Fin covers 63, 63 are provided to cover at least one of the plate-like fins 61a whose tip ends are cut obliquely. The fin cover 63 is formed of a plate material having an L-shaped cross section orthogonal to the axial direction. Note that FIG.
In the figure, the portion of the plate-like fin 61a indicated by a thick line indicates a portion cut obliquely. Otherwise, the configuration of the twenty-second embodiment is the same as the configuration of the nineteenth embodiment.

Therefore, also in the twenty-second embodiment, the first
Approximately the same effects as those of the ninth embodiment can be obtained. In particular, in the twenty-second embodiment, since the fin cover 63 covers the obliquely cut portion of the plate-like fin 61a of the radiation fin 61, it is ensured that the cooling air leaks to the outer peripheral side at the cut portion. Can be prevented. Thereby, the cooling performance of the radiation fins 61 is further improved.

In the twenty-second embodiment, only the diagonally cut portion of the plate-like fin 61a of the heat radiation fin 61 is covered by the fin cover 63. Alternatively, FIGS. As in the twenty-third embodiment of the present invention, the entire outer peripheral portion of the plate-like fin 61a of the radiation fin 61 may be covered by the fin cover 64. The fin cover 64 is formed in a rectangular cylindrical shape. The other configuration of the twenty-third embodiment is similar to that of the twenty-second embodiment.
The configuration is the same as that of the embodiment. Therefore, the second
In the third embodiment, substantially the same operation and effect as those of the twenty-third embodiment can be obtained. In particular, in the twenty-third embodiment,
Since the number of parts of the fin cover 64 is reduced and its shape is simplified, manufacturability is improved.

In the twenty-fourth embodiment of the present invention shown in FIG. 43, the fin cover 64 covers the entire outer peripheral portion of the plate-like fin 61a of the heat radiation fin 61 shown in the twentieth embodiment. In the case of this configuration, it is possible to obtain substantially the same operation and effect as the twentieth embodiment and the twenty-third embodiment. Further, as in a twenty-fifth embodiment of the present invention shown in FIG. 44, it is also preferable that the entire outer peripheral portion of the plate-like fin 61a of the heat radiation fin 61 shown in the twenty-first embodiment is covered by a fin cover 64. . Also in the case of this configuration, it is possible to obtain substantially the same operation and effect as the twenty-first embodiment and the twenty-third embodiment.

FIG. 45 shows a twenty-sixth embodiment of the present invention, and the differences from the nineteenth embodiment will be described.
The same parts as those in the nineteenth embodiment are denoted by the same reference numerals. In the twenty-sixth embodiment, the height (the dimension in the left-right direction in FIG. 45) of each plate-like fin 65a of the radiation fin 65 is configured to be the same, and the arrangement position of the axial fan device 62 is changed to the radiation fin 65 The plate-like fin 65a is configured to be separated from the tip by a distance δ. And the axial fan device 6
2 and the plate-like fin 65a and the plate-like fin 6
A cover 66 was provided to cover the outer periphery of 5a. This cover 6
6 is formed in a rectangular cylindrical shape, and has an axial fan device 62.
The left end portion in FIG. 45 of the outer peripheral portion of the fan cover 62b is also configured to be covered.

In the case of the twenty-sixth embodiment, a space having a distance δ is provided between the axial fan device 62 and the radiating fin 65, and this space is covered with a cover 66. For this reason, since the swirling component in the flow of the cooling air generated by the axial fan device 62 is attenuated in the space, the cooling air is supplied to the plate-like fins 65 of the radiation fins 65.
It becomes easy to enter between a. The configuration of the twenty-sixth embodiment other than the above is the same as the configuration of the nineteenth embodiment.

FIGS. 46 and 47 show the twenty-seventh embodiment of the present invention, and the points different from the nineteenth embodiment will be described. The same parts as those in the nineteenth embodiment are denoted by the same reference numerals. In the twenty-seventh embodiment, the radiation fins 6
Longitudinal direction (left-right direction in FIG. 46) of one plate-like fin 61a
An axial fan device 62 was disposed on the right end side of. The rotation direction of the fan 62a of the axial fan device 62 is
It is set clockwise toward each plate-like fin 61a. As shown in FIG. 47, the row direction of each plate-like fin 61a is defined as the X-axis direction, the tip direction of each plate-like fin 61a is defined as the Y-axis direction, and the axial direction of the axial fan device 62 (that is,
The longitudinal direction of each plate-like fin 61a) is defined as a Z-axis direction.

At this time, in the first quadrant of the XY plane,
The height of each plate-like fin 61a (that is, the length of the plate-like fin 61a in the direction approaching the fan device 62) is Y
In the third quadrant of the XY plane, the height of each plate-like fin 61a is gradually reduced in the negative direction of the Y axis, while the height is gradually lowered in the positive direction of the axis. In the case of this configuration, when reducing the height of each plate-like fin 61a, the right end of each plate-like fin 61a was cut obliquely in the same manner as in the nineteenth embodiment.

The configuration of the twenty-seventh embodiment other than that described above is the same as the configuration of the nineteenth embodiment. Therefore, in the twenty-seventh embodiment, substantially the same operation and effect as in the nineteenth embodiment can be obtained.

In the twenty-eighth embodiment of the present invention shown in FIGS. 48 and 49, similarly to the twenty-seventh embodiment, the right end of the plate-like fin 61a of the heat radiation fin 61 in the longitudinal direction is shown. On the side, after arranging the axial fan device 62,
The radiation fin 61 is configured such that the shape of the right end in the longitudinal direction of the plate-like fin 61a is substantially the same as that of the twentieth embodiment. Therefore, in the case of this configuration, the second
It is possible to obtain substantially the same operation and effects as those of the zeroth embodiment and the twenty-seventh embodiment.

Further, in the twenty-ninth embodiment of the present invention shown in FIGS. 50 and 51, similarly to the twenty-seventh embodiment, the right end of the plate-like fin 61a of the heat radiation fin 61 in the longitudinal direction is shown. On the side, after arranging the axial fan device 62,
The shape of the right end in the longitudinal direction of the plate-like fin 61a of the radiation fin 61 is configured to be substantially the same as that of the twenty-first embodiment. Therefore, in the case of this configuration, the second
It is possible to obtain substantially the same operation and effect as the first embodiment and the twenty-seventh embodiment.

FIG. 52 shows a thirtieth embodiment of the present invention, and different points from the twenty-seventh embodiment will be described.
The same parts as those of the twenty-seventh embodiment are denoted by the same reference numerals. In the thirtieth embodiment, the distal end (upper end in FIG. 52) of the plate-like fin 61a of the heat radiation fin 61 is covered with the fin cover 67. Otherwise, the configuration of the thirtieth embodiment is the same as the configuration of the twenty-seventh embodiment.

Therefore, also in the thirtieth embodiment, the second
Almost the same effects as those of the seventh embodiment can be obtained. In particular, in the thirtieth embodiment, the distal end of the plate-like fin 61a of the heat radiation fin 61 was covered by the fin cover 67.
It is possible to reliably prevent the cooling air from radiating outward from the distal end of the plate-like fin 61a of the radiation fin 61. Thereby, the cooling performance of the radiation fins 61 can be further improved.

FIGS. 53 and 54 show a thirty-first embodiment of the present invention, and the differences from the nineteenth embodiment will be described. The same parts as those in the nineteenth embodiment are denoted by the same reference numerals. In the thirty-first embodiment, the axial fan device 62 is not provided, and the heights of the plate-like fins 65a of the radiating fins 65 (dimensions projecting rightward in FIG. 53) are the same. It was configured as follows. Further, a cooling fan 71 is provided on the load side of the rotating shaft 24 of the motor 12. The cooling fan 71 is a centrifugal fan driven to rotate by the motor 12.

Further, a substantially rectangular tubular air guide plate 7 as a whole is
2 is provided so as to cover the cooling fan 71, the case 37 of the inverter unit 13, the frame 38 of the motor 12, and the radiation fins 65. In this case, the left end of the air guide plate 72 is disposed so as to cover the shroud 71 a of the cooling fan 71. The right end portion of the air guide plate 72 is disposed so as to cover up to about half of the axial dimension (left-right direction in FIG. 53) of the plate-like fin 65a of the heat radiation fin 65. The air guide plate 72 has a function of guiding the cooling air generated by the cooling fan 71 to between the plate-like fins 65a of the heat radiation fin 65 via the outer periphery of the frame 15 and the case 27 (FIG. 53 and the arrow in FIG. 54). Note that a fan cover 73 is provided on the left side of the cooling fan 71. In addition, the 31st
The configuration of this embodiment is the same as the configuration of the nineteenth embodiment.

According to the thirty-first embodiment having such a configuration, the cooling air generated by the cooling fan 71 is guided by the baffle plate 72, so that the cooling air flows between the plate-like fins 65a of the radiation fin 65. Will be able to enter smoothly.
Since the cooling air is guided by the air guide plate 72, it can be prevented from dissipating to the outer peripheral side. Thereby, the cooling performance of the radiation fins 65 is improved, and the heat generating element 31 of the inverter device 28 can be sufficiently cooled.

In the thirty-first embodiment, a linear radiating fin is used as the radiating fin 65, but instead of this, as in the thirty-second embodiment of the present invention shown in FIG. Fins 74 may be used. The pin-shaped radiating fins 74 are provided with a large number of pin-shaped fins 74a on the substrate portion 74b.
It is configured to protrude. In the thirty-second embodiment, substantially the same operation and effect as in the thirty-first embodiment can be obtained.

FIG. 56 shows a thirty-third embodiment of the present invention, and different points from the thirty-first embodiment will be described.
The same parts as those in the thirty-first embodiment are denoted by the same reference numerals. In the thirty-third embodiment, the provision of the cooling fan 71 at the load-side end of the rotating shaft 24 is stopped, and the radiation fin 6
5, a diagonal flow type fan device 75 is disposed on the right side in FIG. The fan device 75 includes a fan 75a and a fan motor that rotationally drives the fan 75a, and is configured to generate cooling air that flows obliquely in the radial direction.

Further, an air guide plate 76 is provided so as to cover the fan device 75, the radiation fins 65, the case 37 of the inverter unit 13 and the frame 38 of the motor 12. At the right end of the air guide plate 76, a fan cover 76a that covers the fan device 75 is provided. An outside air inlet 76b is formed at the center of the fan cover 76a. The left end of the air guide plate 76 is configured to cover approximately half of the axial length of the outer peripheral portion of the frame 38 of the motor 12. The air guide plate 7 having such a configuration
6, the cooling air generated by the fan device 75 is guided so as to pass smoothly between the plate-like fins 65a of the radiation fins 65 and then to pass through the outer peripheral portions of the case 37 and the frame 38. Has become.

The configuration of the thirty-third embodiment other than that described above is the same as the configuration of the thirty-first embodiment. Therefore, in the thirty-third embodiment, substantially the same operation and effect as in the thirty-first embodiment can be obtained.

In the thirty-third embodiment, linear radiating fins are used as the radiating fins 65. Instead of this, a pin-shaped radiating fin is used as in the thirty-fourth embodiment of the present invention shown in FIG. Fins 74 may be used. This pin-shaped radiating fin 74 is provided with a large number of pin-shaped fins 74a
It is configured to protrude. In the thirty-fourth embodiment, substantially the same operation and effect as those of the thirty-first embodiment can be obtained.

FIGS. 58 and 59 show a thirty-fifth embodiment of the present invention, and the differences from the thirty-third embodiment will be described. The same parts as those in the 33rd embodiment are denoted by the same reference numerals. In the thirty-fifth embodiment, the fan device 7
5 is replaced with the frame 3 of the motor 12.
8 is disposed above the outer peripheral portion of the portion where the case 8 contacts the case 37 of the inverter unit 13 in the drawing. This fan device 77
Is composed of a fan 77a and a fan motor for rotating the fan 77a.

Then, the air guide plate 78 is connected to the fan device 7.
7, the upper portions of the frame 38 and the case 37, and the upper portions on both sides of the frame 38 and the case 37. A portion of the air guide plate 78 surrounding the fan device 77 constitutes a fan cover (or a fan casing) of the fan device 77. By the air guide plate 78, the cooling air generated by the fan device 77 smoothly enters between the plate-like fins 65a of the radiation fin 65. Thereby, the cooling performance of the radiation fins 65 is improved.

The cooling air generated by the fan device 77 by the air guide plate 78 is supplied to the frame 38 of the motor 12.
Will flow along the outer periphery of. Thereby, the entire motor 12 can be cooled, and the winding 1 of the stator 20 can be cooled.
9 can be cooled, so that the life of the winding 19 is prolonged.
The configuration of the thirty-fifth embodiment other than that described above is the same as the configuration of the thirty-third embodiment. Therefore, the 35th
In this embodiment, almost the same operation and effect as those of the 33rd embodiment can be obtained.

FIGS. 60 and 61 show a thirty-sixth embodiment of the present invention, and the points different from the thirty-fifth embodiment will be described. The same parts as those of the thirty-fifth embodiment are denoted by the same reference numerals. In the thirty-sixth embodiment, a pin-shaped heat radiation fin 74 is provided instead of the linear heat radiation fin 65.
The other configuration of the thirty-sixth embodiment is the same as that of the thirty-fifth embodiment. Therefore, the thirty-sixth
In this embodiment, substantially the same operation and effect as those of the thirty-fifth embodiment can be obtained.

FIG. 62 shows a thirty-seventh embodiment of the present invention, and different points from the thirty-third embodiment will be described.
The same parts as those in the 33rd embodiment are denoted by the same reference numerals. In the 37th embodiment, a first linear radiating fin 79 provided between the motor 12 and the inverter unit 13 so as to be in contact with the frame 38 of the motor 12;
Fan device 80 and case 3 of inverter unit 13
7, a second linear heat radiation fin 8 provided in contact with
1 and were arranged. Further, the heat generating element 31 of the inverter device 28 is disposed so as to be in close contact with the inner surface of the left side wall (the inner surface of the side wall on the side of the second linear radiating fin 80) in the case 37. The fan device 80 includes a fan 80a, a fan motor that rotates the fan 80a, and a fan cover 80b.

In the case of this configuration, the outside air is sucked between the plate-like fins 81a of the second linear radiating fins 81 by the blowing action of the fan device 80, and the sucked cooling air is blown into the first fins 81a. Each plate-like fin 7 of the linear radiation fin 79
9a. Thus, the cooling performance of the two linear radiating fins 79 and 81 is improved. The cooling air that has flowed outward from between the plate-like fins 79a of the first linear radiating fins 79 flows along the outer peripheral portion of the frame 38 of the motor 12. By the flow of the cooling air, the motor 12 can be further cooled. The configuration of the thirty-seventh embodiment other than the above is the same as the configuration of the thirty-third embodiment.

FIG. 63 shows a thirty-eighth embodiment of the present invention, and different points from the thirty-seventh embodiment will be described.
The same parts as those of the thirty-seventh embodiment are denoted by the same reference numerals. In the thirty-eighth embodiment, the longitudinal direction of the plate-like fin 79a of the first linear radiating fin 79 and the longitudinal direction of the plate-like fin 81a of the second linear radiating fin 81 are orthogonal to each other. ing.

The configuration of the thirty-eighth embodiment other than the above is the same as the configuration of the thirty-seventh embodiment. Therefore, in the thirty-eighth embodiment, substantially the same operation and effect as those of the thirty-seventh embodiment can be obtained. In particular, the third
According to the eighth embodiment, the longitudinal direction of the plate-like fin 79a of the first linear radiating fin 79 and the longitudinal direction of the plate-like fin 81a of the second linear radiating fin 81 are orthogonal to each other. Therefore, the air discharged to the outside through the space between the plate-like fins 79a of the first linear radiating fins 79 becomes
(The so-called short circuit) can be prevented from being sucked again between the plate-shaped fins 81a of the linear radiating fins 81.

FIG. 64 shows a thirty-ninth embodiment of the present invention, and different points from the thirty-third embodiment will be described.
The same parts as those in the 33rd embodiment are denoted by the same reference numerals. In the thirty-ninth embodiment, instead of the fan device 75 and the baffle plate 76, the fan device 82 is
5 to the right. The fan device 82 is an axial fan device and includes a fan 82a, a fan motor for driving the fan 82a, and a fan cover 82b.

The outer diameter of the blade 82c of the fan 82a is determined by the radiation fin 65 and the frame 3 of the motor 12.
8 and the case 37 of the inverter unit 13 are configured to be larger than the vertical dimension in FIG. 64. That is, the blade 82c has a shape larger in diameter than the radiation fin 65.

In the above configuration, since the blade 82c of the fan 82a of the fan device 82 is larger in diameter than the radiating fins 65 (and the frame 38 and the case 37), the cooling air generated by the fan device 82 is dissipated by the radiating fins 65. Between the plate-like fins 65a.
Thereby, the cooling performance of the radiation fins 65 is improved, and the heat generating element 31 of the inverter device 28 can be sufficiently cooled. The configuration of the thirty-ninth embodiment other than the above is the same as the configuration of the thirty-third embodiment.

[0113]

As is apparent from the above description, the present invention has an intermediate portion in contact with the bottom of the outer peripheral portion of the case of the control device or the frame of the motor, and an end portion on the side of the outer peripheral portion. Since it is provided with a plate-shaped heat pipe having a substantially U-shaped cross section provided so that the portions are in contact with each other, and the heating element of the control device is arranged at the inner bottom of the case,
It is possible to improve the cooling performance and to achieve an excellent effect that the overall configuration of the motor with the control device can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an inverter unit showing a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional side view of the entire motor with a control device.

FIG. 3 is a longitudinal sectional view of a motor part.

FIG. 4 is a perspective view of a plate-shaped heat pipe.

FIG. 5 is a longitudinal sectional view of a plate-shaped heat pipe.

FIG. 6 is a side view of an inverter unit according to a second embodiment of the present invention.

FIG. 7 is a diagram corresponding to FIG. 1;

FIG. 8 is a diagram corresponding to FIG. 3;

FIG. 9 is a view corresponding to FIG. 6, showing a third embodiment of the present invention;

FIG. 10 is a diagram corresponding to FIG. 7;

FIG. 11 is a view corresponding to FIG. 6, showing a fourth embodiment of the present invention;

FIG. 12 is a diagram corresponding to FIG. 7;

FIG. 13 is a view corresponding to FIG. 11, showing a fifth embodiment of the present invention.

FIG. 14 is a diagram corresponding to FIG. 12;

FIG. 15 is a view corresponding to FIG. 11, showing a sixth embodiment of the present invention;

FIG. 16 is a diagram corresponding to FIG. 12;

FIG. 17 is a view corresponding to FIG. 6, showing a seventh embodiment of the present invention;

FIG. 18 is a diagram corresponding to FIG. 7;

FIG. 19 is a view corresponding to FIG. 6, showing an eighth embodiment of the present invention;

FIG. 20 is a diagram corresponding to FIG. 7;

FIG. 21 is a view corresponding to FIG. 2, showing a ninth embodiment of the present invention;

FIG. 22 is a sectional view taken along the line AA in FIG. 21;

FIG. 23 is a view corresponding to FIG. 21 showing a tenth embodiment of the present invention.

FIG. 24 is a view corresponding to FIG. 21 showing an eleventh embodiment of the present invention.

FIG. 25 is a view corresponding to FIG. 21 showing a twelfth embodiment of the present invention.

FIG. 26 is a view corresponding to FIG. 21 showing a thirteenth embodiment of the present invention;

FIG. 27 is a view corresponding to FIG. 21 showing a fourteenth embodiment of the present invention.

FIG. 28 is a diagram corresponding to FIG. 22;

FIG. 29 is a view corresponding to FIG. 2, showing a fifteenth embodiment of the present invention;

FIG. 30 is a view corresponding to FIG. 2, showing a sixteenth embodiment of the present invention;

FIG. 31 is a view corresponding to FIG. 2, showing a seventeenth embodiment of the present invention;

FIG. 32 is a view corresponding to FIG. 2, showing an eighteenth embodiment of the present invention;

FIG. 33 shows a nineteenth embodiment of the present invention, and is a partial vertical sectional side view showing an inverter unit, a radiation fin, and a fan device.

FIG. 34 is a perspective view of a radiation fin.

FIG. 35 is a view corresponding to FIG. 33 showing a twentieth embodiment of the present invention.

FIG. 36 is a diagram corresponding to FIG. 34;

FIG. 37 is a view corresponding to FIG. 33 showing a twenty-first embodiment of the present invention.

FIG. 38 is a diagram corresponding to FIG. 34;

FIG. 39 is an axial front view of a radiation fin illustrating a twenty-second embodiment of the present invention.

FIG. 40 is a diagram corresponding to FIG. 33;

FIG. 41 is a view corresponding to FIG. 39 showing a twenty-third embodiment of the present invention;

FIG. 42 is a view equivalent to FIG. 34;

FIG. 43 is a view corresponding to FIG. 33, showing a twenty-fourth embodiment of the present invention;

FIG. 44 is a view corresponding to FIG. 33, showing a twenty-fifth embodiment of the present invention;

FIG. 45 is a view corresponding to FIG. 33 showing a twenty-sixth embodiment of the present invention.

FIG. 46 is a view corresponding to FIG. 33, showing a twenty-seventh embodiment of the present invention.

FIG. 47 is a diagram corresponding to FIG. 34;

FIG. 48 is a view corresponding to FIG. 33, showing a twenty-eighth embodiment of the present invention;

FIG. 49 is a view corresponding to FIG. 34;

FIG. 50 is a view corresponding to FIG. 33, showing a twenty-ninth embodiment of the present invention;

FIG. 51 is a diagram corresponding to FIG. 34;

FIG. 52 is a view corresponding to FIG. 33, showing a thirtieth embodiment of the present invention;

FIG. 53 is a view corresponding to FIG. 2, showing a thirty-first embodiment of the present invention;

FIG. 54 is a view corresponding to FIG. 39;

FIG. 55 is a view, corresponding to FIG. 53, showing a thirty-second embodiment of the present invention;

FIG. 56 is a view corresponding to FIG. 53, showing a thirty-third embodiment of the present invention;

FIG. 57 is a view corresponding to FIG. 53, showing a thirty-fourth embodiment of the present invention.

FIG. 58 is a view corresponding to FIG. 53 showing a thirty-fifth embodiment of the present invention;

FIG. 59 is a diagram corresponding to FIG. 54;

FIG. 60 is a view corresponding to FIG. 53 showing a thirty-sixth embodiment of the present invention.

FIG. 61 is a view corresponding to FIG. 54;

FIG. 62 is a view corresponding to FIG. 53, showing a 37th embodiment of the present invention;

FIG. 63 is a view corresponding to FIG. 53, showing a thirty-eighth embodiment of the present invention;

FIG. 64 is a view corresponding to FIG. 53, showing a thirty-ninth embodiment of the present invention;

FIG. 65 is a diagram corresponding to FIG. 2 showing a conventional configuration.

[Explanation of symbols]

11 is a motor with an inverter unit (motor with a control device), 12 is a motor, 13 is an inverter unit (control device), 14 is a motor body, 15 is a frame, 16,
17 is a bearing bracket, 19 is a winding, 21 and 22 are bearings, 24 is a rotating shaft, 27 is a case, 28 is an inverter device, 31 is a heating element, 32 is a plate-shaped heat pipe,
33 is an outer shell, 34 is a filler, 35 is a hollow part, 36 is a refrigerant, 37 is a case, 38 is a frame, 39 is a plate-shaped heat pipe, 40 is a spacer, 41 is a radiating fin,
1a is a plate-like fin, 41b is a board part, 41c is a mounting hole,
42 is a plate-shaped heat pipe, 42a is a winding start end, 43 is a case, 44 is a radiating fin, 45 is a V-shaped radiating fin, 46 is a terminal block, 47 is a plate-shaped heat pipe, 48 is an outer fan, and 49 is an outer fan. Fan cover, 50 is a mounting flange, 51, 52, 53 are plate-shaped heat pipes, 54
Is a heat radiation fin, 55, 56, 57 are plate heat pipes, 61 is a heat radiation fin, 61a is a plate fin, 62 is a fan device, 62a is a fan, 62b is a fan cover,
63 and 64 are fin covers, 65 is a radiation fin, 65a
Is a plate-like fin, 66 is a cover, 67 is a fin cover, 7
1 is a cooling fan, 72 is a baffle plate, 74 is a pin-shaped radiator fin, 75 is a fan device, 76 is a baffle plate, 77 is a fan device, 78 is a baffle plate, 79 is a first linear radiator fin, 8
0 is a fan device, 81 is a second linear radiation fin, 82
Represents a fan device, 82a represents a fan, and 82c represents a blade.

Claims (19)

[Claims] 1. A motor with a control device in which a control device for driving and controlling a motor is integrally attached to a motor, wherein an intermediate portion contacts a bottom portion of a case of the control device or an outer peripheral portion of a frame of the motor, It is provided with a plate-shaped heat pipe having a substantially U-shaped cross section provided so that an end portion is in contact with a side portion of the outer peripheral portion, and that a heating element of the control device is disposed at an inner bottom portion of the case. Characteristic motor with control device. 2. The motor with a control device according to claim 1, wherein a radiation fin is provided at an end portion of the plate-shaped heat pipe. 3. A plate-shaped heat pipe is spirally wound around a case of the control device or an outer peripheral portion of a frame of the motor, and a winding start end and a winding end end of the plate-shaped heat pipe are formed in the case. The motor with a control device according to claim 1, wherein the motor is provided in an upper portion of an outer peripheral portion of the frame. 4. The radiating fins are constituted by linear radiating fins having a plurality of plate-like fins arranged substantially in parallel, and the direction of the fin row of the linear radiating fins is set in an oblique direction. 3. The motor with a control device according to claim 2, wherein: 5. The motor with a control device according to claim 2, wherein the radiating fin is constituted by a V-shaped radiating fin having a plurality of V-shaped plate-like fins. 6. A motor with a control device in which a control device for driving and controlling the motor is integrally attached to the motor, wherein a heat absorbing portion is brought into contact with a case of the control device, and a heat radiating portion is brought into contact with a main body of the motor. A motor with a control device, comprising a plate-shaped heat pipe provided in the motor. 7. The control device and the motor are arranged side by side in the axial direction, an intermediate portion of the plate-shaped heat pipe is brought into contact with a case of the control device, and an end portion of the plate-shaped heat pipe is connected to the control device. The motor with a control device according to claim 6, wherein the motor is configured to be brought into contact with the main body of the motor. 8. A heat radiation fin is provided on a surface of the heat absorbing portion of the plate-shaped heat pipe which is in contact with a case of the control device on a side opposite to the heat absorbing portion.
A motor with a control device according to the above. 9. A motor with a control device in which a control device for controlling driving of the motor is integrally mounted on the motor, wherein an outer fan provided on a rotating shaft of the motor and an outer fan provided so as to cover the outer fan. A motor with a control device, comprising: a fan cover; and a plate-shaped heat pipe provided so that a heat absorbing portion is brought into contact with a case of the control device and a heat radiating portion is brought into contact with the outer fan cover. 10. A motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction, and a heat absorbing portion is provided inside the main body of the motor. A motor with a control device, comprising: a plate-shaped heat pipe provided so as to be in contact with a portion near the bearing on the control device side and to make a heat radiating portion project outside the main body of the motor. 11. A motor with a control device in which a control device for driving and controlling the motor is integrally attached to the motor, wherein a plurality of plate-like fins provided in contact with a case of the control device and arranged substantially in parallel are provided. A linear radiating fin having the axial flow fan device, and an axial fan device disposed on the tip side of the plate fin of the linear radiator fin and blowing cooling air toward each of the plate fins. The direction of rotation of the fan is set clockwise toward each of the plate-shaped fins, the row direction of each of the plate-shaped fins is set as the X-axis direction, and the longitudinal direction of each of the plate-shaped fins is set as the Y-axis direction, When the axial direction of the axial fan device is the Z-axis direction, in the first quadrant of the XY plane, the height of each plate-like fin is gradually reduced in the positive direction of the Y-axis or the X-axis. , XY plane In the third quadrant, the control device with the motor, characterized in that the height of each plate fin is constructed so as to gradually lower toward the negative direction of the Y-axis or X-axis. 12. A motor with a control device in which a control device for controlling the driving of the motor is integrally mounted on the motor, wherein a plurality of plate-like fins provided in contact with a case of the control device and arranged substantially in parallel are provided. A linear radiating fin having the axial flow fan device, and an axial fan device disposed on the tip side of the plate fin of the linear radiator fin and blowing cooling air toward each of the plate fins. The direction of rotation of the fan is set in a counterclockwise direction toward each of the plate fins, the row direction of each of the plate fins is set as the X-axis direction, and the longitudinal direction of each of the plate fins is set as the Y-axis direction. When the axial direction of the axial fan device is the Z-axis direction, in the fourth quadrant of the XY plane, the height of each plate-like fin is gradually reduced toward the positive direction of the Y-axis or the X-axis. Together, XY flat Second in quadrant controller with motor, characterized in that the height of each plate fin is constructed so as to gradually lower toward the negative direction of the Y-axis or X-axis of. 13. The motor with a control device according to claim 11, further comprising a fin cover that covers at least a plate-shaped fin having a smaller height among the plate-shaped fins of the linear radiation fin. 14. A motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein a plurality of plate-like fins provided in contact with a case of the control device and arranged substantially in parallel are provided. A linear radiating fin having: an axial fan device that is disposed at a set interval on a tip side of the plate-shaped fin of the linear radiated fin and that sends cooling air toward each of the plate-shaped fins; A motor with a control device, comprising: a space between the plate-like fins and the axial fan device; and a cover that covers the plate-like fins. 15. A motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction, and the heating element of the control device is controlled by the control device. A radiating fin disposed on the inner surface of the case of the device opposite to the motor, and provided so as to be in contact with the outer surface of the case of the control device opposite to the motor; provided on the load side of the motor; A cooling fan that is rotationally driven by a motor; a cooling fan that is provided to cover the cooling fan, the case of the control device, the frame of the motor, and the radiating fins, and guides cooling air generated by the cooling fan to the radiating fins A motor with a control device, comprising: a wind guide plate. 16. A motor with a control device in which a control device for driving and controlling the motor is integrally mounted on the motor, wherein the control device and the motor are arranged side by side in the axial direction, and the heating element of the control device is controlled by the control device. A radiating fin disposed on the inner surface of the case of the device opposite to the motor, and provided so as to be in contact with the outer surface of the case of the control device opposite to the motor; And a cooling fan device provided so as to cover the cooling fan device, the radiating fins, the case of the control device, and the frame of the motor, and apply cooling air generated by the cooling fan to the radiating fins. A motor with a control device, comprising: an air guide plate for guiding. 17. A motor with a control device in which a control device for controlling driving of the motor is integrally mounted on the motor, wherein the control device and the motor are arranged at a set interval in the axial direction, and the heat generation of the control device An element is disposed on the motor-side inner surface of the control device case, and is provided between the control device and the motor so as to be in contact with the motor-side outer surface of the control device case. A first linear radiating fin having a plurality of plate-shaped fins arranged in parallel; and a plurality of plate-shaped fins provided so as to be in contact with an outer surface of the motor frame on the control device side, and arranged substantially in parallel. A motor with a control device, comprising: a second linear radiating fin having: a cooling fan device provided between the two linear radiating fins. 18. A structure in which the longitudinal direction of the plate-shaped fins of the first linear radiating fins and the longitudinal direction of the plate-shaped fins of the second linear radiating fin are orthogonal to each other. A motor with a control device according to claim 17. 19. A motor with a control device in which a control device for driving and controlling the motor is integrally attached to the motor, wherein the control device and the motor are arranged side by side in the axial direction, and the heating element of the control device is controlled by the control device. A radiating fin disposed on the inner surface of the case of the device opposite to the motor, and provided so as to be in contact with the outer surface of the case of the control device opposite to the motor; And a cooling fan device of an axial flow type having a fan with a blade larger in diameter than the radiation fin.