CN215186143U - Non-tooth slot generator winding for motor - Google Patents
Non-tooth slot generator winding for motor Download PDFInfo
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- CN215186143U CN215186143U CN202120698941.2U CN202120698941U CN215186143U CN 215186143 U CN215186143 U CN 215186143U CN 202120698941 U CN202120698941 U CN 202120698941U CN 215186143 U CN215186143 U CN 215186143U
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Abstract
The utility model relates to a no tooth groove is generator card winding for motor. This no tooth slot is generator card winding for motor includes: a plurality of hairpin coils. The hairpin coils are uniformly distributed in the circumferential direction according to a winding phase splitting mode and a winding arrangement rule designed by the motor, and are fixed and encapsulated by using a non-magnetic tool so as to form the hairpin winding for the non-tooth-slot motor. The hairpin winding of this kind of structure can guarantee that the winding distributes evenly, improves space utilization, improves the power density of motor, effectively reduces the size of motor to and reduced the processing degree of difficulty.
Description
Technical Field
The utility model relates to an electric equipment technical field especially relates to a hairpin winding suitable for no tooth groove motor.
Background
With the expansion of the application field of the motor, higher requirements on the torque fluctuation, the power density, the volume quality and the like of the motor are met, and the motor without the tooth groove is produced. The cogging-less motor has no cogging, very smooth output torque, and high power density, and thus is becoming an important branch in the field of motors. In a gearless slot machine, the armature winding is typically wound using a die and then rolled into a cylindrical shape. However, in actual processing, the winding mode hardly ensures that the windings are uniformly arranged, the performance of the motor is influenced, the production efficiency of the motor is reduced, and batch production is difficult to realize. Therefore, a new winding is needed, which can ensure that the processing technology is not complex, can ensure that the winding is uniformly arranged, and can also highly meet the designed arrangement index.
Disclosure of Invention
The utility model aims at providing a can highly accord with the hairpin winding of arranging index be applicable to no tooth groove motor of design to when can guaranteeing the processing technology uncomplicated, guarantee arranging of winding even.
In order to achieve the above object, the utility model provides a following scheme:
a hairpin winding for a gearless slot machine, the hairpin winding comprising: a plurality of card sending coils;
the multiple hairpin coils are uniformly distributed in the circumferential direction according to a winding phase splitting mode, and the multiple hairpin windings are fixed and encapsulated by using a non-magnetic tool.
Optionally, the hairpin coils have a plurality of layers, and the hairpin coils of each layer are aligned in position on the circumference.
Optionally, the winding phase splitting manner is a manner in which the phases of the motor are distributed on the circumference, the number of the motor phases is greater than or equal to 1, and the windings of each phase are symmetrically distributed on the circumference. For example, a three-phase motor, A, B, C, is each of its phases, distributed circumferentially in the form of ACBACB.
Optionally, the card sending coil includes: a head portion, a straight portion and an open end portion;
the head portion, the linear portion, and the open end portion are connected in sequence.
Optionally, the head is "V" shaped or "U" shaped.
Optionally, the linear portion includes a first linear sub-portion and a second linear sub-portion; the open end portion comprises a first open sub-end portion and a second open sub-end portion;
one end of the head opening is connected with the first linear sub-portion; the first straight line sub-portion is connected with the first open circuit sub-end portion; the other end of the head opening is connected with the second linear sub-portion; the second linear sub-portion is connected to the second open terminal portion.
Optionally, two hairpin coils belonging to the same phase and having open ends in contact are connected in series or in parallel by welding their open ends;
hairpin coils belonging to the same phase, circumferentially in the same position, but in different layers, are connected in series or in parallel by welding their open ends.
Optionally, the hairpin winding further includes: an arc-shaped connecting device; the arc-shaped connecting devices are used for connecting the hairpin coils which belong to the same phase and are not in contact with each other;
the arc-shaped connecting device comprises a plurality of welding holes; when the hairpin coil is matched with the arc-shaped connecting device for use, the hairpin coil further comprises a needle-shaped leading-out end, the needle-shaped leading-out end of the hairpin coil is inserted into the welding hole to form physical connection, and the welding hole and the needle-shaped leading-out end are welded and reinforced to form electrical connection; the arc connecting device is made of conductive metal materials, and an insulating layer is arranged on the surface except the position of the welding hole.
Optionally, the hairpin winding further includes: a PCB connection device;
the PCB connecting device is a whole printed circuit board, and a plurality of wirings, a plurality of bonding pads and a plurality of rows of inserting are arranged on the board.
When the hairpin coil is matched with the PCB connecting device for use, the hairpin coil also comprises a needle-shaped leading-out end; the needle-shaped leading-out end of the hairpin coil is inserted into a bonding pad of the PCB connecting device for welding or is directly inserted into a slot of the PCB connecting device; the wirings are used to connect pads or sockets belonging to the same phase.
Optionally, the arc connection device and the PCB connection device are used in a mixed manner or separately.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model provides a hairpin winding includes: a plurality of hairpin coils. The hairpin coils are uniformly distributed in the circumferential direction according to a winding phase splitting mode and a winding arrangement rule designed by the motor, and are fixed and encapsulated by a non-magnetic tool to form a hairpin winding for the non-tooth-slot motor;
the hairpin winding with the structure can ensure that the windings are uniformly distributed, improve the space utilization rate, improve the power density of the motor, effectively reduce the size of the motor and reduce the processing difficulty;
the utility model discloses in through setting up multilayer hairpin coil, and the position of each layer's hairpin coil on the circumference aligns, can increase the torque, possesses better heat-sinking capability, and the loss of copper also can reduce.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a hairpin winding provided by the present invention;
fig. 2 is a schematic structural view of a hairpin coil provided by the present invention;
fig. 3 is a schematic connection diagram of a hairpin coil with two open ends in contact according to the present invention;
fig. 4 is a schematic structural diagram of the hairpin coil including the pin-shaped terminals provided by the present invention;
fig. 5 is a schematic structural view of an arc connection device provided by the present invention;
fig. 6 is a schematic structural diagram of the PCB connecting device provided by the present invention;
description of the symbols:
the circuit board comprises an arc-shaped connecting device 1, a hairpin coil 2, a PCB connecting device 3, a head 4, a linear part 5, an open end part 6, a pin-shaped leading-out terminal 7, a first welding hole 801, a second welding hole 802, a third welding hole 803, a fourth welding hole 804, a first bonding pad 901, a second bonding pad 902, a first slot 1001, a second slot 1002 and a wiring 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a can highly accord with the index of arranging of design's hairpin winding suitable for no tooth groove motor to solve traditional cylindric wound-rotor type winding difficult processing, the inhomogeneous problem of arranging in position.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description. As shown in fig. 1, the utility model provides a hairpin winding, include:
a plurality of hairpin coils 2.
The number of the hairpin coils 2 is multiple, the hairpin coils 2 are uniformly distributed in the circumferential direction according to a winding phase splitting mode, and the hairpin windings are fixed and encapsulated by using a non-magnetic tool.
The hairpin coil 2 is multi-layered. Through setting up multilayer hairpin coil 2, and the position of each layer of hairpin coil 2 on the circumference aligns, can increase the torque, possess better heat-sinking capability, the loss of copper also can reduce.
The winding phase splitting mode is a mode that all phases of the motor are distributed on the circumference, the number of the motor phases is more than or equal to 1, and all the phase windings are symmetrically distributed on the circumference. For example, a three-phase motor, A, B, C, is each of its phases, distributed circumferentially in the form of ACBACB.
The hairpin coils 2 belonging to the same branch can be connected in series in a welding mode, and the hairpin coils of different branches can be connected in parallel in a welding mode.
As shown in fig. 2, the utility model provides a hairpin coil includes: a head portion 4, a linear portion 5, and an open end portion 6, the head portion 4, the linear portion 5, and the open end portion 6 being connected in this order.
The utility model discloses in, the head that adopts can be for "V" type structure, also can be for protruding type structures such as "U" type.
The linear portion 5 includes a first linear sub-portion and a second linear sub-portion; the open end portion 6 comprises a first open sub-end portion and a second open sub-end portion;
one open end of the head 4 is connected to the first linear sub-portion; the first straight line sub-portion is connected with the first open circuit sub-end portion; the other end of the opening of the head part 4 is connected with the second linear sub-part; the second linear sub-portion is connected to the second open terminal portion.
The open end 6 may be located inside or outside the first and second linear sub-portions, defining the space between the first and second linear sub-portions as the inside and the space outside the first and second linear sub-portions as the outside.
During a specific use, the open ends 6 of the hairpin coils belonging to the same phase are connected (soldered), as shown in fig. 3. And when the open circuit tip that belongs to two hairpin coils of same phase not contacted each other, for the convenience of establishing ties or parallelly connected with the hairpin coil in each phase, or with each looks star connection, the utility model provides a hairpin winding still further includes, arc connecting device 1 and PCB connecting device 3. The arc connection device 1 and the PCB connection device 3 are located at the open end of the hairpin for connecting hairpin coils belonging to the same phase, which need to be connected in series or in parallel, but the open end 6 is not in contact.
When the winding end is not wrapped by the stator core, the arc connection device 1 is adopted.
When the winding end is wrapped by the stator core, but the motor has space in the axial direction, the PCB connecting device 3 is adopted.
As shown in fig. 4, the hairpin coil used in cooperation with the arc connection device or the PCB connection device further includes pin terminals 7. The pin-shaped leading-out terminal is in a slender structure and is positioned on the side surface or the end part of the open-circuit end part of the hairpin coil.
The pin-shaped leading-out terminal 7 of the hairpin coil 2 is inserted into the welding hole to form physical connection, and the welding hole and the pin-shaped leading-out terminal 7 are welded and reinforced to form electrical connection; the arc connecting device 1 is made of conductive metal materials, and an insulating layer is arranged on the surface except the position of a welding hole.
The needle-shaped leading-out end 7 of the hairpin coil 2 is inserted into a bonding pad of the PCB connecting device 3 for welding or is directly inserted into a slot of the PCB connecting device 3; the wiring is used for connecting pads or slots belonging to the same phase
The arc connecting device 1 is arc-shaped, and the arc length of the arc connecting device 1 is approximately equal to the length of different hairpin coils connected with the arc connecting device along the arc direction.
Specifically, the surface of the arc-shaped connecting device is provided with a plurality of welding holes, which are a first welding hole 801, a second welding hole 802, a third welding hole 803 and a fourth welding hole 804, and the specific arrangement positions of the welding holes are shown in fig. 5.
As shown in fig. 1, the pin terminals of two hairpin coils are inserted into two solder holes, a first solder hole 801 and a second solder hole 802, of the arc-shaped connecting device 1, and are soldered and connected in parallel to form a branch. Two pin terminals are inserted into two soldering holes, a third soldering hole 803 and a fourth soldering hole 804 of the arc-shaped connecting device 1 and are soldered, and are connected in parallel to form a branch. The arc-shaped connecting device 1 simultaneously connects the two branches in series.
Specifically, the PCB connecting device 3 is shaped like a sector ring, and a pad and a slot are disposed on the surface thereof. Specific arrangement positions of the first pad 901, the second pad 902, the first slot 1001, the second slot 1002, and the wiring 11 on the PCB apparatus 3 are shown in fig. 6.
As shown in fig. 6, the pin terminals 7 of a part of the hairpin coils 2 are inserted into the first pad 901 and the second pad 902 of the PCB connection device 3 and soldered, and the wiring 11 of the PCB connection device 3 connects the first pad 901 and the second pad 6-2 in parallel as a branch. The pin terminals 7 of a part of the hairpin coils 2 are inserted into the first slot 1001 and the second slot 1002 of the PCB connection device 3, and the wiring 11 of the PCB connection device 3 connects the first slot 1001 and the second slot 1002 in parallel to form a branch. The wiring 11 on the PCB connection means 3 connects these two branches in series.
The arc connecting device 1 and the PCB connecting device 3 replace the traditional connecting wire, so that the structure of the motor winding is more compact and regular, and the utilization rate of the space is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A hairpin winding for a gearless slot machine, the hairpin winding comprising: a plurality of card sending coils;
the multiple hairpin coils are uniformly distributed in the circumferential direction according to a winding phase splitting mode, and the multiple hairpin windings are fixed and encapsulated by using a non-magnetic tool.
2. A generator winding for a toothless slot motor as claimed in claim 1, characterized in that the hairpin coil has a plurality of layers, the hairpin coils of the respective layers being aligned in position on the circumference.
3. The generator card winding for the toothless slot motor as claimed in claim 1, wherein the winding phase splitting mode is a mode of distributing each phase of the motor on the circumference, the number of the motor phases is more than or equal to 1, and the windings of each phase are symmetrically distributed on the circumference.
4. The hairpin winding for a toothless slot motor of claim 1, wherein the hairpin coil comprises: a head portion, a straight portion and an open end portion;
the head portion, the linear portion, and the open end portion are connected in sequence.
5. A generator winding for a toothless slot motor as claimed in claim 4, characterized in that the head is "V" shaped or "U" shaped.
6. A generator winding for a gearless slot machine according to claim 5, wherein the rectilinear portion comprises a first rectilinear sub-portion and a second rectilinear sub-portion; the open end portion comprises a first open sub-end portion and a second open sub-end portion;
one end of the head opening is connected with the first linear sub-portion; the first straight line sub-portion is connected with the first open circuit sub-end portion; the other end of the head opening is connected with the second linear sub-portion; the second linear sub-portion is connected to the second open terminal portion.
7. A generator winding for a gearless slot machine according to claim 4,
two hairpin coils belonging to the same phase and having open-circuit ends in contact are connected in series or in parallel by welding their open-circuit ends;
hairpin coils belonging to the same phase, circumferentially in the same position, but in different layers, are connected in series or in parallel by welding their open ends.
8. The hairpin winding for a toothless slot motor of claim 4 further comprising pin terminals on the hairpin coil, the hairpin winding further comprising: an arc-shaped connecting device; the arc-shaped connecting devices are used for connecting the hairpin coils which belong to the same phase and are not in contact with each other;
the arc-shaped connecting device comprises a plurality of welding holes; when the hairpin coil is matched with the arc-shaped connecting device for use, the pin-shaped leading-out end of the hairpin coil is inserted into the welding hole to form physical connection, and the welding hole and the pin-shaped leading-out end are welded and reinforced to form electrical connection; the arc connecting device is made of conductive metal materials, and an insulating layer is arranged on the surface except the position of the welding hole.
9. The hairpin winding for a toothless slot motor of claim 8, further comprising: a PCB connection device;
the PCB connecting device is a whole printed circuit board, and a plurality of wires, a plurality of bonding pads and a plurality of power strips are arranged on the PCB;
when the hairpin coil is matched with the PCB connecting device for use, the needle-shaped leading-out end of the hairpin coil is inserted into a bonding pad of the PCB connecting device for welding or is directly inserted into a slot of the PCB connecting device; the wirings are used to connect pads or sockets belonging to the same phase.
10. A generator winding for a gearless slot machine according to claim 9, wherein the arc-shaped connection means and the PCB connection means are used in combination or separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120698941.2U CN215186143U (en) | 2021-04-07 | 2021-04-07 | Non-tooth slot generator winding for motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120698941.2U CN215186143U (en) | 2021-04-07 | 2021-04-07 | Non-tooth slot generator winding for motor |
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| CN215186143U true CN215186143U (en) | 2021-12-14 |
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| CN202120698941.2U Active CN215186143U (en) | 2021-04-07 | 2021-04-07 | Non-tooth slot generator winding for motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928848A (en) * | 2021-04-07 | 2021-06-08 | 北京理工大学 | Non-tooth slot generator winding for motor |
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- 2021-04-07 CN CN202120698941.2U patent/CN215186143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928848A (en) * | 2021-04-07 | 2021-06-08 | 北京理工大学 | Non-tooth slot generator winding for motor |
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