JP5953758B2 - Motor device and manufacturing method thereof - Google Patents

Description

  The present invention relates to a motor device and a manufacturing method thereof.

  Conventionally, there is an electric oil pump device that combines an oil pump that circulates fluid (oil) and a motor that drives the oil pump. In addition, there has been proposed an electric oil pump device in which the motor and the oil pump share a rotating shaft and are arranged side by side in the direction of the central axis of the oil pump, and the motor housing is integrally coupled to the pump housing to reduce the size and weight. (For example, refer to Patent Document 1). According to the technique of this Patent Document 1, the hydraulic oil in the pump housing flows into the chamber in the motor housing that houses the rotor that rotates the motor through the gap between the outer periphery of the rotating shaft and the pump housing, and the outer periphery of the rotor The motor is cooled by contact with a stator fixed to the outside of the surface.

JP 2002-317772 A

  In the above-described electric oil pump device, for example, the motor disposed near the transmission in the engine room and the controller installed in the passenger compartment for controlling the drive of the motor are connected by a harness. In addition to causing an increase, the operation of the controller may become unstable due to the influence of noise from the outside, or the controller may adversely affect the outside. Therefore, it is possible to further reduce the size by eliminating the need for a harness for connecting the motor and the controller and integrating the controller with the electric oil pump device. However, when an electric oil pump device having a structure in which oil flows into the motor and cools the motor is integrated with the controller, the inside of the motor housing passes through the boundary surface of the bus bar to which the stator coil is connected due to aging of the oil and the seal member. Inflowing oil may flow into the controller. As a result, a malfunction of the controller may occur due to deformation due to swelling of the substrate in the controller or damage to electronic components mounted on the substrate.

  The present invention has been made in order to solve the above-described problems. The purpose of the present invention is to make sure that the motor oil and the controller are integrally formed, and the oil of the motor having a structure in which the oil flows into the controller flows into the controller. Another object of the present invention is to provide a motor device that can be prevented by sealing between the motor housing and the bus bar, and a method for manufacturing the motor device.

In order to solve the above-mentioned problem, the invention according to claim 1 is a motor having a structure in which oil flows into the inside,
A motor device provided adjacent to the motor, and a controller for driving and controlling the motor;
The motor includes a rotor provided on a rotating shaft thereof ;
An insulator wound with a coil;
A stator core to which the insulator is mounted;
A stator assembly in which the stator core is annularly fixed to the outside of the outer peripheral surface of the rotor;
A resin motor housing provided in a state of being molded integrally with the stator assembly,
The motor housing includes a control room, a board of the controller housed in the control room,
A bus bar provided in the insulator, having a terminal portion connected to the coil, and a pin portion connected to a through hole formed in the substrate;
A cylindrical recess provided in the control chamber and concentrically with the bus bar;
A seal groove provided by the bus bar and the recess;
An annular seal member that seals the control chamber in a state of being fitted in the seal groove;
And a retaining member that closes the open end of the recess .

According to the above configuration, the annular seal member is inserted into the annular seal groove formed by the bus bar and the cylindrical concave portion of the motor housing, thereby pressing the seal member with a uniform surface pressure and the motor housing. The space between the bus bars can be well sealed. Further, since the sealing member is prevented from coming off by the retaining member, the occurrence of leakage of oil in the motor housing to the controller can be suppressed, and deformation of the substrate and damage to the electronic component due to swelling can be prevented.

The invention according to claim 2 is the motor device according to claim 1,
The terminal portion of the bus bar provided in the insulator is a first bus bar, the pin portion is a second bus bar connected to the first bus bar, and the second bus bar is concentric with the second bus bar. A large-diameter base end portion that forms the annular seal groove between the formed cylindrical recess and a base end portion that is coaxial with the base end portion and that has a smaller diameter than the base end portion. This is the gist. According to the above configuration, the second bus bar has the large-diameter base end portion that forms an annular seal groove concentrically with the cylindrical recess portion of the motor housing, and thus the second bus bar is circular between the recess portion of the motor housing. It can seal reliably by an annular sealing member. Thereby, the occurrence of leakage of oil in the motor housing to the controller can be reliably suppressed at the base end portion having a large diameter, and the tip portion having a smaller diameter than the base end portion can be easily connected to the substrate.

According to a third aspect of the present invention, in the motor device according to the first or second aspect, the second bus bar is fixed to the motor housing in a state where the second bus bar is inserted into a through-hole of the board constituting the controller. The motor housing is provided with a resin cover that covers the control chamber . According to the above configuration, the second bus bar can be directly connected to the substrate, and wiring of the substrate and attachment of the cover can be facilitated.

According to a fourth aspect of the present invention, there is provided a plurality of stator subassemblies having a structure in which oil flows in, a rotor provided on a rotating shaft, an insulator mounted on a stator core, and a coil wound around the insulator A stator assembly fixed in an annular shape by a stator ring and fixed to the outside of the outer peripheral surface of the rotor, a motor housing made of resin molded integrally with the stator assembly, and a motor And a controller for driving and controlling the motor, wherein the second bus bar is press-fitted into the first bus bar provided in the insulator of the stator assembly and connected to the coil. And a plurality of holes fitted into the second bus bar on the inner peripheral surface of the stator assembly. The formed jig is fitted, the phase of the rotation direction is adjusted by the open slot formed by the adjacent stator subassembly and the protrusion of the jig, and the jig is moved in the axial direction of the stator assembly. A correcting step of correcting the second bus bar in parallel with the axial direction, and forming the mold by combining the upper mold with the stator assembly with the second bus bar corrected, A molding step of molding the motor housing by injecting resin into a mold, and in the molding step, a convex portion for forming a seal groove surrounding an outer periphery of the second bus bar, and the second A cylindrical recess is formed in a control chamber of the motor housing that houses the controller by the upper mold in which a fitting portion for housing the bus bar is formed. The gist.
According to the above configuration, the second bus bar can be corrected in parallel with the axial direction by fitting the jig to be fitted to the second bus bar to the stator assembly and moving the phase in the axial direction. Thus, in the molding process of molding the motor housing, a cylindrical recess can be formed coaxially with the second bus bar in the control chamber of the motor housing that houses the controller. An annular seal groove can be formed. Since the seal member is fitted in the seal groove, the sealing performance against the oil of the electric oil pump device can be improved.

According to a fifth aspect of the present invention, in the method of manufacturing the motor device according to the fourth aspect , the seal groove formed by the concave portion and the second bus bar is formed in the opening end of the cylindrical concave portion. The gist of the present invention is to include a first fixing step of fixing a resin retaining member that closes the opening end after the sealing member is inserted. According to the above configuration, the retaining member is fixed to the opening end of the cylindrical recess of the motor housing to prevent the annular seal member from coming off, and the occurrence of leakage of oil in the motor housing to the controller is suppressed. Is done.

According to a sixth aspect of the present invention, in the method of manufacturing a motor device according to the fourth or fifth aspect , the second bus bar is inserted into a through hole of a substrate constituting the controller and electrically connected. The invention includes a fixing step of fixing the substrate to the motor housing, and a second fixing step of fixing a resin cover covering the control chamber to the motor housing. According to the said structure, the board | substrate of a controller can be fixed to the end surface of a motor housing, and a 2nd bus bar can be directly connected to a board | substrate. Thereby, wiring of a board | substrate and attachment of a cover can be performed easily.

  According to the present invention, an annular seal member is inserted into an annular seal groove formed by a bus bar and a cylindrical concave portion of a motor housing, thereby pressing the seal member with a uniform surface pressure and the bus bar and the motor. A motor device that can satisfactorily seal between the housing and a method of manufacturing the motor device can be provided.

The sectional view of the direction of an axis showing the schematic structure of the electric oil pump device by the embodiment of the present invention. The front view which shows the structure of a stator subassembly. The perspective view of the jig | tool fitted to a stator assembly. Sectional drawing which shows the state which fitted the jig | tool to the stator assembly. Sectional drawing explaining the process in which a stator assembly is installed in a lower mold | type, an upper mold | die is match | combined, a metal mold | die is formed, and a motor housing is shape | molded.

Next, as an example of an embodiment of the present invention, an electric oil pump device will be described with reference to the drawings.
FIG. 1 is an axial sectional view showing a schematic configuration of an electric oil pump device according to an embodiment of the present invention, and FIG. 2 is a front view showing a configuration of a stator subassembly. As shown in FIGS. 1 and 2, an electric oil pump device 1 is used as a hydraulic pump for an automobile transmission, and rotates an oil pump (for example, an internal gear pump) 2 and an oil pump 2 (hereinafter referred to as an oil pump 2). (Referred to as a brushless motor) 3 is adjacent to and unitized (integrated). The controller 4 is also incorporated in the motor housing 15. The brushless motor 3 shown in FIG. 1 is a sensorless brushless motor having a three-phase winding connected in a double star connection.

  The oil pump 2 uses a trochoid curved pump here, and an inner rotor for pumps (hereinafter referred to as “outer rotor”) 10 having outer teeth on the inner periphery of a pump outer rotor (hereinafter referred to as “outer rotor”) 10 having inner teeth having trochoidal teeth. (Hereinafter referred to as an inner rotor) 11, and the pump portion 12 is configured in which the outer rotor 10 and the inner rotor 11 are eccentrically disposed in the pump housing 15 so as to be rotatable.

  The inner rotor 11 is externally fitted and fixed to a portion (left side in FIG. 1) closer to one side than the portion where the rotor 6 is formed in the rotational drive shaft 7, and rotates together with the rotational drive shaft 7. The outer rotor 10 has one more internal tooth than the outer teeth of the inner rotor 11, and is arranged so as to be rotatable in the pump housing 15 around a position eccentric with respect to the rotary drive shaft 7. In addition, the inner rotor 11 rotates with its outer teeth meshing with the inner teeth of the outer rotor 10 at a part of its entire circumference, and each outer tooth substantially inscribed in the inner surface of the outer rotor 10 at various locations around the entire circumference. ing.

  Therefore, when the rotational drive shaft 7 is rotationally driven by the brushless motor 3, the volume of the gap between the outer rotor 10 and the inner rotor 11 of the oil pump 2 repeatedly expands and contracts during one rotation of the rotational drive shaft 7. A pump operation is performed to feed oil from an import (not shown) provided on the pump plate 14 leading to these gaps to the outport.

  The brushless motor 3 includes a rotating motor rotor (hereinafter referred to as a rotor) 6 and a motor stator (stator assembly, hereinafter referred to as a stator) 5 fixed to the outside of the outer peripheral surface of the rotor 6. The rotor 6 is formed by arranging, for example, a plurality of permanent magnets 8 along the circumferential direction on the outer peripheral surface of the rotary drive shaft 7. The rotation drive shaft 7 is a rotation shaft shared by the brushless motor 3 and the oil pump 2, and both ends thereof are supported by bearings (for example, rolling bearings) 32 and 33 disposed inside the pump housing 15 and the rotor holding member 23. It is pivotally supported.

  In the stator 5, a plurality of inwardly-illustrated teeth of the stator core 9 divided through a slight air gap are arranged outside the outer peripheral surface of the rotor 6. A resin (for example, PPS) insulator 21 for insulating the coil 17 from the stator core 9 is attached to each tooth of the stator core 9 from both ends in the axial direction, and a three-phase coil 17 is wound around each of the teeth. The stator 5 includes a plurality of stator subassemblies 16, and each stator subassembly 16 is fastened and fixed by a cylindrical thin metal (for example, iron) stator ring (hereinafter referred to as a collar) 22. Has been.

One end of the coil 17 is connected to a bus bar 18 molded on the insulator 21. The coil connecting portion 19a (see FIG. 2) engaged with the bus bar 18 of the coil 17 is further resistance welded by fusing. Further, the three-phase second bus bar 20 serving as a drive output terminal of the brushless motor 3 extends in parallel to the axial direction from the right end portion of the insulator 21. The second bus bar 20 has a base end portion 20a fitted to the motor housing 15 in a cylindrical shape and a tip end portion 20b inserted through the substrate 28 in a pin shape.
Further, the second bus bar 20 has a large-diameter base end portion 20a that forms an annular seal groove 26 between the second bus bar 20 and a cylindrical recess 25 formed concentrically, and is coaxial with the base end portion 20a. It is formed from the front-end | tip part 20b which is provided in this and smaller diameter than the base end part 20a.

  The stator 5, the rotor holding member 23, and the bus bar 18 are molded integrally with the motor housing 15, and are made of rubber in a plurality of (for example, three) annular seal grooves 26 formed on the bottom end surface of the motor housing 15. An annular seal member (for example, an O-ring) 27 is fitted and contacts the cylindrical base end portion 20 a of the bus bar 18 to seal between the motor housing 15 and the bus bar 18. Further, a resin retaining member 36 for preventing the sealing member 27 from coming off is welded to the motor housing 15 with the opening end of the recess 25 closed.

  In addition, a nut (not shown) made of metal (for example, iron, copper, etc.) is embedded in the insulator 21 mounted on the stator core 9 by insert molding. The stator 5 of the brushless motor 3 is fixed by screwing a bolt (not shown) inserted from the pump plate 14 through the pump housing 13 to a nut embedded in the insulator 21.

  The pump plate 14 and the pump housing 13 are made of a nonmagnetic material (for example, aluminum die casting). The motor housing 15 and the cover 31 that house the brushless motor 3 and the controller 4 are formed of a resin material (for example, a thermoplastic resin). The housing body of the electric oil pump device 1 includes the pump plate 14, the pump housing 13, the collar 22, the motor housing 15, and a cover 31. Here, the motor housing 15 and the cover 31 form a waterproof cover.

  Further, in the electric oil pump device 1 of the present embodiment, a control board (hereinafter referred to as a board) 28 of the controller 4 for controlling the brushless motor 3 is accommodated in a control chamber 24 provided on the side opposite to the motor of the motor housing 15. It is attached to the end surface of the motor housing 15 with screws. On the substrate 28, based on the inverter circuit that converts the DC power source into AC and supplies the drive current to each coil 17 of the brushless motor 3, and the rotational position information of the outer rotor 10 detected by a sensor such as a Hall element, A control circuit unit 29 including a control circuit for controlling the inverter circuit is mounted. The inverter circuit constituting the control circuit unit 29 of the controller 4 and electronic components such as a microcomputer, a coil and a capacitor of the control circuit are mounted on both surfaces of the substrate 28.

  The bus bar 18 that is a phase output terminal of the brushless motor 3 that is connected to each coil 17 and insulated and supported by the insulator 21 is inserted into the substrate 28 and connected to the control circuit unit 29 on the substrate 28. A connector shell (not shown) is provided integrally with the motor housing 15 on the side surface of the motor housing 15, and a connector pin inside the connector shell is connected to the control circuit unit 29 on the substrate 28.

  With the above configuration, the drive current controlled by the control circuit unit 29 is supplied to each coil 17 of the brushless motor 3. Thereby, a rotating magnetic field is generated in the coil 17, torque is generated in the permanent magnet 8, and the rotor 6 is rotationally driven. Thus, when the inner rotor 11 is driven to rotate, the outer rotor 10 is driven and rotated, and the gap between the inner teeth of the outer rotor 10 and the outer teeth of the inner rotor 11 is repeatedly expanded and contracted. Pump operation is performed to suck and discharge oil through the port.

  As shown in FIG. 2, the end portion of the coil 17 is connected to the coil connection portion 19 a of the first bus bar 19 molded in the insulator 19. A second bus bar 20 serving as a phase output terminal of the brushless motor 3 is electrically connected to a second bus bar connecting portion 19b which is the other end portion of the first bus bar 19 to form a bus bar 18. The bus bar 18 is formed into a predetermined shape by performing a process such as bending a flat plate with a long metal plate material (for example, copper or copper alloy). The first bus bar 19 is formed with a terminal portion 19 a having a slit-like portion with one end open and an annular second bus bar connecting portion 19 b at the end. The cylindrical base end portion 20a of the second bus bar 20 is fitted into the two bus bar connecting portion 19b.

Next, a method for manufacturing the electric oil pump device of the present invention will be described.
FIG. 3 is a perspective view of a jig fitted to the stator, FIG. 4 is a cross-sectional view showing a state where the jig is fitted to the stator, and FIG. It is sectional drawing explaining the process of forming a metal mold | die and shape | molding a motor housing.
First, the plurality of stator subassies 16 are press-fitted into the collar 22. In this embodiment, the number of stator sub-assies 16 is six. Subsequently, referring to FIG. 2, the cylindrical base end portion 20 a of the second bus bar 20 is press-fitted into the second bus bar connecting portions 19 b of the three annular first bus bars 19 of the stator 5 (press-fitting step). Next, as shown in FIGS. 3 and 4, a metal (for example, a plurality of holes 41 that fit into the second bus bar 20 is formed in an open slot formed on the inner periphery of the adjacent stator subassembly 16 (for example, The jig 39 is fitted on the inner peripheral surface of the stator 5 by fitting the protrusions 40 of the iron 39 jig. Then, the jig 39 is phase-adjusted in the rotational direction and moved in the axial direction to correct the axis of the second bus bar 20 so as to be parallel to the axial direction (correcting step).

  Next, as shown in FIG. 5, the stator 5 and the rotor holding member 23 centered by the jig 39 are placed on the lower die 35 which is a fixed side, and the upper die 34 which is a movable side is die-matched to form a metal Form a mold. Subsequently, resin is injected into the mold to mold the motor housing 15 (molding process). The upper die 34 has a convex portion 37 for forming an annular seal groove 26 surrounding the base end portion 20 a of the second bus bar on the bottom end surface of the motor housing 15 and a fitting for accommodating the second bus bar 20. A cylindrical recess 25 is formed in the control chamber 24 and finally a seal groove 26 is formed.

  With reference to FIG. 1, an annular seal member 27 is fitted into an annular seal groove 26 formed in a cylindrical recess 25 of the motor housing 15 and surrounding the cylindrical base end portion 20 a of the second bus bar 20. Then, a resin retaining member 36 that closes the opening end of the cylindrical recess 25 is welded to the opening end (first fixing step). With the front end 20b of the second bus bar 20 inserted into the through hole 30 of the board 28 of the controller 4, the board 28 is integrally screwed to the outer end surface of the motor housing 15, and soldered to be electrically connected (fixed) Process). The motor housing 15 illustrated in FIG. 1 is formed through the above steps. Subsequently, the motor housing 15 and the cover 31 both made of a resin material are joined (second adhering step). Here, spin welding is used. An annular welding rib is formed on the back side of the cover 31 that covers the opening of the motor housing 15, and the welding rib is heated and melted while rotating the cover 31, and is fixed to the motor housing 15 of the counterpart component. It is welded by pressing against the concave part. Further, the rotor 6 is inserted into the central portion of the motor housing 15, and the pump housing 13 and the pump plate 14 are fixed to the mounting stator 5, thereby completing the electric oil pump device 1.

  Next, the operation and effect of the electric oil pump device according to the present embodiment configured as described above will be described.

  According to the above configuration, the first bus bar coil connection portion 19a provided integrally with the insulator 21 is connected to the coil 17, and the second bus bar tip portion 20b press-fitted into the second bus bar connection portion 19b of the first bus bar. The bus bar 18 connected to the substrate 28 is molded in the motor housing 15. A cylindrical recess 25 formed concentrically with the second bus bar 20 in the control chamber 24 of the motor housing 15 in a state where the tip 20b of the second bus bar can penetrate the through hole 30 of the substrate 28, and the second bus bar. The control chamber 24 is sealed by fitting an annular seal member 27 into an annular seal groove 26 formed by the cylindrical base end portion 20a.

  A jig 39 to be fitted to the second bus bar 20 is fitted on the inner peripheral surface of the stator 5, the phase is adjusted in the rotational direction, and the phase is moved in parallel to the axial direction to correct the second bus bar 20 and seal groove of the motor housing 15. 26 and the second bus bar 20 are aligned with each other. Then, the stator 5 and the motor housing 15 are molded, and a seal member 27 is fitted into the seal groove 26 to seal between the motor housing 15 and the second bus bar 20. Here, the inner surface of the seal groove 26 and the outer periphery of the cylindrical base end portion 20 a of the second bus bar are sealed against oil by an annular seal member 27. Further, the board 28 of the controller 4 is fixed to the outer end face of the motor housing 15 and is connected by directly soldering the tip 20b of the second bus bar through which the through hole 30 of the board 28 is inserted.

  Thus, the motor housing 15 can be molded by aligning the axis of the second bus bar 20 and the axis of the annular seal groove 26 into which the annular seal member 27 is fitted. The surface pressure that presses the member 27 becomes uniform, and oil leakage can be prevented. Further, the sealing member 27 can be prevented from coming off by welding the retaining member 36 to the opening end of the cylindrical recess 25. For this reason, the sealing performance with respect to oil can be improved, and the occurrence of leakage of the oil in the motor housing 15 to the controller 4 via the bus bar 18 is satisfactorily suppressed. As a result, it is possible to prevent the substrate 28 from being deformed and the electronic components from being damaged due to swelling.

  As described above, according to the present embodiment, the annular seal member is inserted into the annular seal groove formed by the bus bar and the cylindrical recess of the motor housing, so that the seal member can be brought to a uniform surface pressure. It is possible to provide an electric oil pump device that can be pressed and can satisfactorily seal between the bus bar and the motor housing, and a method for manufacturing the same.

  Although one embodiment according to the present invention has been described above, the present invention can also be implemented in other forms.

In the above embodiment, the case where the controller is arranged in the axial direction of the oil pump and integrated with the brushless motor has been described. May be installed.
Moreover, although the case where the internal gear pump was used as an oil pump was shown in the said embodiment, it is not limited to this, The rotary pump using a vane drive, an external gear, etc. may be sufficient.
Moreover, although the case where the brushless motor is applied to the electric oil pump device has been described in the above embodiment, the present invention is not limited to this, and may be applied to other devices using the same brushless motor. Furthermore, a motor with a brush can be applied.

In the above embodiment, the method of joining the resin material of the motor housing and the cover is shown by spin welding, but is not limited to this, but is not limited to this, hot plate welding, ultrasonic welding, vibration welding, infrared welding. Or may be adhesion by an adhesive. Further, the method of joining the motor housing and the resin retaining member is not limited to welding, and may be adhesion using an adhesive.
Furthermore, although the case where the board | substrate is fixed to a motor housing by screwing was shown in the said embodiment, it is not limited to this, For example, you may fix using a snap-type spacer.

1: electric oil pump device, 2: oil pump, 3: brushless motor (electric motor), 4: controller, 5: stator for motor (stator assembly), 6: rotor for motor, 7: rotary drive shaft (rotary shaft) 8: Permanent magnet, 9: Stator core, 10: Outer rotor for pump, 11: Inner rotor for pump, 12: Pump part, 13: Pump housing, 14: Pump plate, 15: Motor housing, 16: Stator sub-assembly, 17: Motor coil, 18: bus bar, 19, 19a, 19b: first bus bar (terminal part), coil connection part, second bus bar connection part, 20, 20a, 20b: second bus bar (pin part), proximal end part, distal end Part, 21: insulator, 22: collar (stator ring), 23: rotor holding member, 24: control chamber, 25: recess, 26: seal groove, 27: seal member, 28: substrate, 29: control circuit section, 30: through hole, 31: cover, 32, 33: bearing, 34, 35: upper mold, lower mold, 36: retaining member 37: upper mold convex part, 38: upper mold fitting part, 39: jig, 40: protrusion, 41: fitting hole

Claims (6)

A motor with a structure in which oil flows into the interior;
A motor device provided adjacent to the motor, and a controller for driving and controlling the motor;
The motor includes a rotor provided on a rotating shaft thereof ;
An insulator wound with a coil;
A stator core to which the insulator is mounted;
A stator assembly in which the stator core is annularly fixed to the outside of the outer peripheral surface of the rotor;
A resin motor housing provided in a state of being molded integrally with the stator assembly,
The motor housing includes a control room, a board of the controller housed in the control room,
A bus bar provided in the insulator, having a terminal portion connected to the coil, and a pin portion connected to a through hole formed in the substrate;
A cylindrical recess provided in the control chamber and concentrically with the bus bar;
A seal groove provided by the bus bar and the recess;
An annular seal member that seals the control chamber in a state of being fitted in the seal groove;
A motor device comprising: a retaining member that closes an opening end of the recess . The motor device according to claim 1,
The terminal portion of the bus bar provided in the insulator is a first bus bar, the pin portion is a second bus bar connected to the first bus bar, and the second bus bar is concentric with the second bus bar. A large-diameter base end portion that forms the annular seal groove between the formed cylindrical recess and a base end portion that is coaxial with the base end portion and that has a smaller diameter than the base end portion. The motor apparatus characterized by the above-mentioned. In the motor device according to claim 1 or 2,
The second bus bar is electrically connected to the substrate fixed to the motor housing in a state of being inserted into the through hole of the substrate, and the motor housing has a resin cover that covers the control chamber. motor device, characterized in that it comprises. It has a structure that allows oil to flow inside, and a rotor provided on the rotating shaft, an insulator is mounted on the stator core, and a plurality of stator subassies in which coils are wound around the insulator are annularly fixed by a stator ring. A motor comprising: a stator assembly fixed to the outside of the outer peripheral surface of the rotor; and a resin motor housing molded integrally with the stator assembly;
In a manufacturing method of a motor device provided with a controller that is provided adjacent to the motor and that drives and controls the motor,
A press-fitting step of press-fitting a second bus bar into the first bus bar provided in the insulator of the stator assembly and connected to the coil;
A jig in which a plurality of holes for fitting with the second bus bar are fitted to the inner peripheral surface of the stator assembly, and an open slot formed by the adjacent stator sub-assembly and a projection of the jig The phase of the rotational direction is adjusted by the above, the jig is moved in the axial direction of the stator assembly, and the second bus bar is corrected in parallel with the axial direction,
A molding step in which the stator assembly in which the second bus bar is corrected is installed in a lower mold, an upper mold is matched with the upper mold to form a mold, and a resin is injected into the mold to mold the motor housing; With
In the molding step, the controller is accommodated by the upper mold in which a convex portion for forming a seal groove surrounding the outer periphery of the second bus bar and a fitting portion for accommodating the second bus bar are formed. A method for manufacturing a motor device, comprising: forming a cylindrical recess in a control chamber of the motor housing. In the manufacturing method of the motor device according to claim 4 ,
A resin retaining member that closes the opening end is fixed to the opening end of the cylindrical recess after the sealing member is inserted into the sealing groove formed by the recess and the second bus bar. The manufacturing method of a motor apparatus provided with a 1st adhering process. In the manufacturing method of the motor device according to claim 4 or 5 ,
A fixing step of fixing the substrate to the motor housing in order to insert and electrically connect the second bus bar to a through-hole of the substrate constituting the controller;
And a second fixing step of fixing a resin cover covering the control chamber to the motor housing.

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