CN113513475B

CN113513475B - Electric compressor

Info

Publication number: CN113513475B
Application number: CN202110371114.7A
Authority: CN
Inventors: 大河内健史; 矢野顺也; 木下雄介; 筿原光毅
Original assignee: Toyota Industries Corp
Current assignee: Toyota Industries Corp
Priority date: 2020-04-10
Filing date: 2021-04-07
Publication date: 2022-10-28
Anticipated expiration: 2041-04-07
Also published as: JP7279681B2; JP2021168570A; CN113513475A; KR20210126499A; DE102021202793A1; KR102455941B1

Abstract

The invention provides an electric compressor which improves the productivity of a connector. The connector is provided with a copper connector main body (50) and a resin case (60) for accommodating the connector main body (50). The connector body (50) has a terminal section (51) into which the conductive pin (27) is inserted and removed, and a connecting section (52) for electrically connecting the terminal section (51) to the circuit board. The connector main body (50) is formed by bending and deforming an integral copper plate. The terminal section (51) has a pair of holding sections (53) that face each other and hold the conductive pin (27). The connecting portion (52) has a protruding portion (84) that protrudes outside the case (60) and that is inserted into the circuit board.

Description

Electric compressor

Technical Field

The present invention relates to an electric compressor.

Background

The electric compressor includes a compression unit for compressing a fluid, an electric motor for driving the compression unit, an inverter device for driving the electric motor and having a circuit board, and a housing for housing the inverter device therein. Further, as disclosed in patent document 1, for example, the electric compressor includes a connector attached to the housing and electrically connected to the circuit board.

Further, as a connector, a connector including a metal connector body and a resin housing accommodating the connector body therein is known. The connector main body is configured by "a cylindrical metal terminal and a metal lead wire are integrated by welding". A conductive pin electrically connected to the electric motor is inserted into the terminal, and an end of the lead is electrically connected to the circuit board by soldering or the like. Thereby, the electric motor and the inverter device are electrically connected via the connector.

Documents of the prior art

Patent literature

Patent document 1: japanese laid-open patent publication No. 2015-40538

Disclosure of Invention

Problems to be solved by the invention

In recent electric compressors, it is desired to use a metal material having high heat resistance in accordance with the use of electric power larger than that of conventional electric compressors. However, since a metal material having high heat resistance is difficult to solder, productivity may be reduced in a soldering work in the connector.

The present invention has been made to solve the above problems, and an object thereof is to provide an electric compressor capable of improving productivity of a connector.

Means for solving the problems

An electric compressor for solving the above problems includes: a compression section compressing a fluid; an electric motor that drives the compression unit; an inverter device that drives the electric motor and has a circuit board; a case having a motor housing chamber for housing the electric motor, an inverter housing chamber for housing the inverter device, and a partition wall for partitioning the motor housing chamber and the inverter housing chamber; a conductive pin penetrating the partition wall and having one end electrically connected to the electric motor; and a connector disposed in the inverter housing chamber and electrically connecting the other end of the conductive pin to the circuit board, the connector including a metal connector body and a resin housing accommodating the connector body therein, the connector being disposed between the circuit board and the partition wall, the connector body including a terminal portion into which the other end of the conductive pin is inserted and pulled and a connecting portion electrically connecting the terminal portion to the circuit board, the connector body being formed by bending and deforming an integral metal plate, the terminal portion including a pair of holding portions facing each other and holding the conductive pin, and the connecting portion including a protruding portion protruding outside the housing and penetrating the circuit board.

According to the above configuration, the connector body is formed of the integral metal plate continuous from the clamping portion to the protruding portion. Since the connector body can be formed of an integral metal plate in this manner, welding is not required in the manufacture of the connector. Therefore, the productivity of the connector can be improved.

In the electric compressor, preferably, the terminal portion includes: a connecting portion connecting each of the pair of clamping portions; and a pair of engaging portions that engage with each other on a side opposite to the coupling portion with respect to the pair of gripping portions, thereby restraining the pair of gripping portions from being separated from each other.

According to the above configuration, the pair of clamping portions clamp the conductive pin more firmly by the coupling portion and the engagement portion, and the connection between the conductive pin and the connector is stabilized.

In the electric compressor, it is preferable that the connecting portion has an extended portion which connects the terminal portion and the protruding portion and is housed in the housing, and the extended portion has a bent portion which is bent.

In an environment where the electric compressor vibrates, if the circuit board moves due to the vibration of the electric compressor, stress may be applied to the connector body. According to the above configuration, since the stress applied to the connector main body can be attenuated at the bent portion of the extended portion, the durability of the connector against vibration can be improved.

In the motor-driven compressor, it is preferable that the conductive pin has a copper layer on a surface thereof, and the metal plate is a copper plate.

According to the above configuration, since the conductive pin and the clip portion are in contact with each other with the same copper, contact resistance can be suppressed. Therefore, a larger electric power can be supplied from the inverter device to the electric motor.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the productivity of the connector can be improved.

Drawings

Fig. 1 is a side sectional view showing a motor-driven compressor according to the embodiment partially broken away.

Fig. 2 is a circuit diagram showing an electrical configuration of the electric compressor.

Fig. 3 is a side sectional view showing a part of the electric compressor in an enlarged manner.

Fig. 4 is a sectional view showing the connector body accommodated in the housing body.

Fig. 5 is a sectional view showing the connector main body accommodated in the housing cover.

Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 4.

Fig. 7 is a side view of the connector body.

Fig. 8 is a perspective view of the connector body.

Fig. 9 is an expanded view of the connector body.

Description of the reference numerals

10 \8230inan electric compressor, 11 \8230ina housing, 13a \8230ina bottom wall, 14a \8230ina housing, 16 \8230ina transducer receiving chamber, a compression section, 17 \8230inan electric motor, 18 \8230ina motor receiving chamber, 24a \8230ina housing bottom wall, 27 \8230ina conductive pin, 27b \8230ina copper layer, 30 \8230inan inverter device, 31 \8230ina circuit substrate, 49 \8230ina circuit substrate, a connector, 50 \8230ina connector main body, 51 \8230ina terminal section, 52 \8230ina connecting section, 53 \8230ina clamping section, 56 \8230ina connecting section, 57 \8230ina clamping section, 60 \8230ina housing, 81 \8230inan extending section, 84 \8230inan extending section, a protruding section, 823085 in a bending section.

Detailed Description

Hereinafter, an embodiment of the electric compressor will be described with reference to fig. 1 to 9. The electric compressor of the present embodiment is used, for example, in a vehicle air conditioner.

As shown in fig. 1, a housing 11 of the electric compressor 10 includes a discharge housing 12 having a cylindrical shape with a bottom, a motor housing 13 having a cylindrical shape with a bottom connected to the discharge housing 12, and an inverter housing 14 connected to the motor housing 13. The discharge case 12, the motor case 13, and the converter case 14 are made of a metal material, for example, aluminum. The motor housing 13 has a bottom wall 13a and a peripheral wall 13b extending cylindrically from the outer periphery of the bottom wall 13a.

A rotary shaft 15 is accommodated in the motor housing 13. Further, a compression unit 16 that is driven by rotation of the rotation shaft 15 to compress a refrigerant as a fluid and an electric motor 17 that rotates the rotation shaft 15 to drive the compression unit 16 are housed in the motor case 13. The compression unit 16 and the electric motor 17 are arranged in an axial direction, which is a direction in which the rotation axis of the rotation shaft 15 extends. The electric motor 17 is disposed closer to the bottom wall 13a of the motor housing 13 than the compression portion 16. A motor housing chamber 18 for housing an electric motor 17 is formed between the compression portion 16 and the bottom wall 13a in the motor housing 13. Therefore, the housing 11 has a motor accommodating chamber 18.

The compression portion 16 is, for example, a scroll type including an unillustrated fixed scroll fixed in the motor case 13 and an unillustrated movable scroll disposed to face the fixed scroll.

The electric motor 17 includes a cylindrical stator 19 and a rotor 20 disposed inside the stator 19. The rotor 20 rotates integrally with the rotating shaft 15. The stator 19 surrounds the rotor 20. The rotor 20 includes a rotor core 20a fixed to the rotating shaft 15 and a plurality of permanent magnets, not shown, provided on the rotor core 20 a. The stator 19 includes a cylindrical stator core 19a and a motor coil 21 wound around the stator core 19 a.

The peripheral wall 13b is provided with a suction port 13h. One end of an external refrigerant circuit 22 is connected to the suction port 13h. The discharge housing 12 is formed with a discharge port 12h. The other end of the external refrigerant circuit 22 is connected to the discharge port 12h. The suction port 13h is formed in a portion of the peripheral wall 13b on the side of the bottom wall 13a. The suction port 13h communicates with the motor housing chamber 18.

The refrigerant sucked into the motor accommodating chamber 18 from the external refrigerant circuit 22 through the suction port 13h is compressed by the compression unit 16 by driving the compression unit 16, and flows out to the external refrigerant circuit 22 through the discharge port 12h. The refrigerant flowing out of the external refrigerant circuit 22 passes through the heat exchanger and the expansion valve of the external refrigerant circuit 22, and flows back into the motor accommodating chamber 18 through the suction port 13h. The electric compressor 10 and the external refrigerant circuit 22 constitute a vehicle air-conditioning apparatus 23.

The inverter case 14 is attached to the bottom wall 13a of the motor case 13. An inverter housing chamber 14a for housing the inverter device 30 is formed in the inverter housing 14. Therefore, the housing 11 has an inverter housing chamber 14a. The compression unit 16, the electric motor 17, and the inverter device 30 are arranged in this order in the axial direction of the rotary shaft 15.

The converter case 14 has a bottomed cylindrical converter case main body 24 and a bottomed cylindrical cover member 25 that closes an opening of the converter case main body 24. The converter case main body 24 has a flat-plate-shaped case bottom wall 24a and a case peripheral wall 24b extending cylindrically from the outer peripheral edge of the case bottom wall 24a. The cover member 25 has a flat plate-shaped cover bottom wall 25a and a cover peripheral wall 25b extending cylindrically from the outer peripheral edge of the cover bottom wall 25 a.

The converter case main body 24 and the cover member 25 are disposed in a state where the opening end surface of the case peripheral wall 24b and the opening end surface of the cover peripheral wall 25b are in contact with each other. The converter housing chamber 14a is defined by a converter case body 24 and a cover member 25. The inverter case 14 is attached to the bottom wall 13a of the motor case 13 in a state where the outer surface of the case bottom wall 24a of the inverter case main body 24 is in contact with the outer surface of the bottom wall 13a of the motor case 13.

The motor housing chamber 18 and the inverter housing chamber 14a are partitioned by a bottom wall 13a of the motor case 13 and a case bottom wall 24a of the inverter case main body 24. That is, the bottom wall 13a and the case bottom wall 24a correspond to partition walls that partition the motor housing chamber 18 and the inverter housing chamber 14a. The housing 11 has a bottom wall 13a and a housing bottom wall 24a as partition walls.

The converter case 14 includes a high-voltage connector 25c and a low-voltage connector 25d protruding from an outer surface of a cover bottom wall 25a of the cover member 25. The high-voltage connector 25c is connected to a connector of a high-voltage power supply 32. The low-voltage connector 25d is connected to a connector of a low-voltage power supply 33. The high-voltage power supply 32 is a high-voltage battery such as a lithium-ion secondary battery or a nickel-metal hydride secondary battery mounted on a vehicle. The low-voltage power supply 33 is a low-voltage battery such as a lead-acid battery mounted on the vehicle and having a voltage (e.g., 12V) lower than that of the high-voltage battery (e.g., 400V).

As shown in fig. 2, the motor coil 21 has a three-phase structure including a u-phase coil 21u, a v-phase coil 21v, and a w-phase coil 21 w. In the present embodiment, the u-phase coil 21u, the v-phase coil 21v, and the w-phase coil 21w are Y-connected.

The inverter device 30 includes a plurality of switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2. The plurality of switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2 perform a switching operation for driving the electric motor 17. The plurality of switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2 are IGBTs (power switching elements). Diodes Du1, du2, dv1, dv2, dw1, dw2 are connected to the switching elements Qu1, qu2, qv1, qw2, respectively. The diodes Du1, du2, dv1, dv2, dw1, dw2 are connected in parallel to the switching elements Qu1, qu2, qv1, qv2, qw1, qw2.

The switching elements Qu1, qv1, and Qw1 constitute upper arms of the respective phases. The switching elements Qu2, qv2, and Qw2 constitute lower arms of the respective phases. The switching elements Qu1 and Qu2, the switching elements Qv1 and Qv2, and the switching elements Qw1 and Qw2 are connected in series, respectively. The gates of the switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2 are electrically connected to the control computer 34. The control computer 34 operates by applying a voltage from the low-voltage power supply 33.

The collectors of the switching elements Qu1, qv1, and Qw1 are electrically connected to the positive electrode of the high-voltage power supply 32 via a 1 st connection line EL 1. The emitters of the switching elements Qu2, qv2, and Qw2 are electrically connected to the negative electrode of the high-voltage power supply 32 via a 2 nd connection line EL 2. Emitters of the switching elements Qu1, qv1, and Qw1 and collectors of the switching elements Qu2, qv2, and Qw2 are electrically connected to the u-phase coil 21u, the v-phase coil 21v, and the w-phase coil 21w, respectively, from intermediate points connected in series.

The control computer 34 controls the drive voltage of the electric motor 17 by pulse width modulation. Specifically, the control computer 34 generates a PWM signal using a high-frequency triangular wave signal called a carrier signal and a voltage command signal for instructing a voltage. The control computer 34 controls the switching operation (on/off control) of the switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2 using the generated PWM signals. Thereby, the dc voltage from the high-voltage power supply 32 is converted into an ac voltage. Then, the converted ac voltage is applied to the electric motor 17 as a driving voltage, whereby the driving of the electric motor 17 is controlled.

The control computer 34 controls the PWM signals to variably control the duty ratios of the switching operations of the switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2. Thereby, the rotation speed of the electric motor 17 is controlled. The control computer 34 is electrically connected to the air-conditioning ECU35, and when receiving information on the target rotation speed of the electric motor 17 from the air-conditioning ECU35, rotates the electric motor 17 at the target rotation speed.

The electric compressor 10 includes a capacitor 36 and a coil 37. The capacitor 36 is provided on the input side of each of the switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2, and is connected in parallel to the high-voltage power supply 32. The capacitor 36 includes a 1 st bypass capacitor 36a, a 2 nd bypass capacitor 36b, and a smoothing capacitor 36c. One end of the 1 st bypass capacitor 36a is electrically connected to the 1 st connection line EL 1. The other end of the 1 st bypass capacitor 36a is electrically connected to one end of the 2 nd bypass capacitor 36 b. Thereby, the 1 st bypass capacitor 36a and the 2 nd bypass capacitor 36b are connected in series. The other end of the 2 nd bypass capacitor 36b is electrically connected to the 2 nd connection line EL 2. An intermediate point between the other end of the 1 st bypass capacitor 36a and one end of the 2 nd bypass capacitor 36b is grounded, for example, to the vehicle body of the vehicle.

One end of the smoothing capacitor 36c is electrically connected to the 1 st connection line EL 1. The other end of the smoothing capacitor 36c is electrically connected to the 2 nd connection line EL 2. The 1 st bypass capacitor 36a and the 2 nd bypass capacitor 36b are connected in parallel to the smoothing capacitor 36c. The smoothing capacitor 36c is provided closer to the switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2 than the 1 st bypass capacitor 36a and the 2 nd bypass capacitor 36b are.

The coil 37 is a common mode choke coil. The coil 37 has a 1 st winding 371 provided on the 1 st connection line EL1 and a 2 nd winding 372 provided on the 2 nd connection line EL 2. The coil 37 includes dummy normal coils L1 and L2 in the 1 st winding 371 and the 2 nd winding 372. That is, the coil 37 of the present embodiment includes the 1 st winding 371, the 2 nd winding 372, and the dummy normal coils L1, L2 in the equivalent circuit. The 1 st winding 371 is connected in series with the virtual normal mode coil L1, and the 2 nd winding 372 is connected in series with the virtual normal mode coil L2.

The coil 37, the 1 st bypass capacitor 36a, the 2 nd bypass capacitor 36b, and the smoothing capacitor 36c reduce common mode noise. The common mode noise is noise in which currents in the same direction flow through the 1 st connection line EL1 and the 2 nd connection line EL 2. The common mode noise can be generated when the electric compressor 10 and the high-voltage power supply 32 are electrically connected to each other through a path other than the 1 st connection line EL1 and the 2 nd connection line EL2, for example, a vehicle body. Therefore, the coil 37, the 1 st bypass capacitor 36a, the 2 nd bypass capacitor 36b, and the smoothing capacitor 36c constitute the LC filter 38. Thus, the coil 37 constitutes an LC filter 38 together with the capacitor 36. Therefore, the capacitor 36 and the coil 37 are filter elements constituting the LC filter 38.

As shown in fig. 1, a plurality of case protrusions 24f are provided upright on the inner surface of the case bottom wall 24a. The converter case main body 24 is formed with a plurality of bolt insertion holes 24h. Each bolt insertion hole 24h penetrates each case boss portion 24f. In fig. 1, for convenience of illustration, only 1 of each of the case boss portion 24f and the bolt insertion hole 24h is illustrated. Each bolt insertion hole 24h is open in the outer surface of the case bottom wall 24a. Further, female screw holes 13c communicating with the respective bolt insertion holes 24h are formed in the bottom wall 13a of the motor housing 13.

A housing hole 13d penetrating the bottom wall 13a is formed in the bottom wall 13a of the motor housing 13. Further, a case hole 24c penetrating the case bottom wall 24a is formed in the case bottom wall 24a of the converter case main body 24. The housing hole 13d and the housing hole 24c communicate with each other. A conductive member 26 is attached to a case bottom wall 24a of the converter case main body 24.

As shown in fig. 3, the conductive member 26 has 3 conductive pins 27. In fig. 1 and 3, only 1 conductive pin 27 is shown for convenience of illustration. The conductive pin 27 includes a cylindrical iron pin main body 27a. A copper layer 27b is formed on the entire surface of the pin main body 27a by plating. Thus, the conductive pin 27 has a copper layer 27b on the surface.

The conductive member 26 includes a support plate 28a that supports each conductive pin 27. The support plate 28a is, for example, a ceramic flat plate. The support plate 28a is mounted to the inner surface of the case bottom wall 24a in the converter case main body 24. The support plate 28a is formed with plate insertion holes 28h through which the conductive pins 27 are inserted. Insulating members 28b made of glass are interposed between the respective conductive pins 27 and the support plate 28a.

As shown in fig. 1, one end of each conductive pin 27 is inserted into the housing hole 13d penetrating the bottom wall 13a and projects into the motor accommodating chamber 18. The other end of each conductive pin 27 is inserted through a case hole 24c penetrating the case bottom wall 24a and protrudes into the inverter housing chamber 14a. Therefore, the conductive pin 27 penetrates the bottom wall 13a and the case bottom wall 24a.

A cluster block 29 is disposed in the motor accommodating chamber 18. Further, 3 motor wires 21a are drawn from each motor coil 21 so as to correspond to the motor coils 21 of the U-phase, the V-phase, and the W-phase. The 3 conductive pins 27 and the 3 motor wires 21a are electrically connected via a cluster block 29, respectively. Therefore, one end of each conductive pin 27 is electrically connected to the electric motor 17.

The inverter device 30 has a circuit board 31 for driving the electric motor 17. The circuit board 31 is housed in the inverter housing chamber 14a. In addition, a holder 40 is accommodated in the inverter accommodating chamber 14a. The holder 40 has a plate-shaped holder main body portion 41. The holder main body portion 41 has a plurality of cylindrical holder boss portions 48. The axial direction of each holder boss 48 coincides with the thickness direction of the holder main body portion 41. Each holder boss 48 protrudes from one surface in the thickness direction of the holder main body 41. The holder 40 is disposed in the inverter housing chamber 14a in a state where the surface of the holder main body portion 41 opposite to the surface of the holder boss portion 48 protruding in the thickness direction of the holder main body portion 41 is placed on each case boss portion 24f. The inner side of each retainer boss 48 communicates with each bolt insertion hole 24h of the converter case main body 24.

The circuit board 31 has a plurality of insertion holes 31h. A plurality of cover protrusions 25f are provided upright on the inner surface of the cover member 25. The cover member 25 has a plurality of cover insertion holes 25h. Each cover insertion hole 25h penetrates each cover boss portion 25f. In fig. 1, for convenience of illustration, only 1 of each of the insertion holes 31h and the cover insertion holes 25h of the circuit board 31 is illustrated. The holder boss 48 is inserted into the insertion hole 31h of the circuit board 31. The cover boss 25f is placed on the distal end surface 48e of each holder boss 48 in a state where the cover insertion hole 25h and the inside of each holder boss 48 communicate with each other. The circuit board 31 and the retainer 40 are mounted to the motor case 13 by screwing the bolts B that have passed through the cover insertion holes 25h of the cover member 25, the insertion holes 31h of the circuit board 31, the inner sides of the retainer bosses 48, and the bolt insertion holes 24h into the female screw holes 13c of the bottom wall 13a of the motor case 13. The holder 40 is disposed in the inverter housing chamber 14a so as to overlap the circuit board 31.

As shown in fig. 3, a connector 49 electrically connected to the circuit board 31 is disposed in the inverter housing chamber 14a. The connector 49 includes 3 copper connector bodies 50 and a resin case 60 for accommodating the connector bodies 50 therein. In fig. 1 and 3, for convenience of illustration, only 1 connector body 50 is shown. The housing 60 is mounted to the holder 40. Thus, the case 60 is mounted to the housing 11. Although not particularly shown in fig. 1 and 3, the holder 40 also holds electronic components such as the capacitor 36, the coil 37, and the switching elements Qu1, qu2, qv1, qv2, qw1, and Qw2.

The connector 49 is mounted on the holder 40 through the case 60, is disposed between the circuit board 31 and the case bottom wall 24a, and is disposed so as to overlap the circuit board 31 in the inverter housing chamber 14a. In the following description, the direction in which the circuit board 31 and the connector 49 are stacked is referred to as a stacking direction X of the circuit board 31 and the connector 49. One of the directions along the stacking direction X is also referred to as a 1 st stacking direction X1, and the direction opposite to the 1 st stacking direction X1 is also referred to as a 2 nd stacking direction X2.

Next, the case 60 will be explained.

As shown in fig. 4 and 5, the case 60 includes a case main body 61 and a case cover 71 that overlaps the case main body 61 in the stacking direction X. A plurality of engaging recesses 61c are formed in the 1 st main body surface 61a of the case main body 61. When the 1 st main body surface 61a is viewed in plan, each engaging recess 61c is circular. A plurality of cylindrical engaging convex portions 71c protrude from the 1 st cover surface 71a of the cover 71. The positioning of the case main body 61 and the case lid 71 is performed by the insertion of the engaging convex portion 71c into the engaging concave portion 61c.

As shown in fig. 4, 3 main body accommodating recesses 62 for accommodating the connector main body 50 are formed in the 1 st main body surface 61a of the housing main body 61. Each main body housing recess 62 has a main body main recess 63 which is a substantially rectangular hole and a main body sub-recess 64 having a belt shape, when the first main body surface 61a is viewed in a plan view. The main body accommodating recesses 62 are formed in the 1 st main body surface 61a of the case main body 61 in a state in which the short side directions of the main body recesses 63 coincide with each other and the long side directions of the main body recesses 63 coincide with each other. In the following description, the short side direction of the main body main recess 63 is referred to as the 1 st direction Y. The longitudinal direction of the main body main recess 63 is referred to as a 2 nd direction Z. The 1 st direction Y is a direction orthogonal to the stacking direction X. The 2 nd direction Z is a direction orthogonal to both the stacking direction X and the 1 st direction Y. In addition, one of the directions along the 1 st direction Y may be referred to as a 1 st direction Y1, and a direction opposite to the 1 st direction Y1 may be referred to as a 1 st direction Y2. One of the directions along the 2 nd direction Z may be referred to as a 2 nd direction Z1, and the direction opposite to the 2 nd direction Z1 may be referred to as a 2 nd direction Z2.

When the 1 st main body surface 61a of the case main body 61 is viewed in plan, the main body main recess 63 of the main body housing recess 62 is adjacent in the 1 st direction Y. The main body sub recess 64 of each main body housing recess 62 communicates with the main body main recess 63. The main body sub recess 64 opens at a portion in the 2 nd direction Z2 in the inner peripheral surface of the main body main recess 63.

The 3 main body accommodating recesses 62 are arranged in the 1 st direction Y1 in the order of the 1 st main body accommodating recess 62a, the 2 nd main body accommodating recess 62b, and the 3 rd main body accommodating recess 62 c. When the 1 st main body surface 61a is viewed in plan, the main body sub recess 64 of each main body housing recess 62 is bent from the main body main recess 63 and extends in the 2 nd direction Z2. Specifically, the main body sub recess 64 of the 1 st main body housing recess 62a extends in the 2 nd direction Z2 from the main body main recess 63, then bends and extends so as to extend in the 1 st direction Y1, and further extends in the 2 nd direction Z2. The main body sub recess 64 of the 2 nd main body housing recess 62b extends from the main body main recess 63 in the 1 st direction Y2, and then bends and extends so as to extend in the 2 nd direction Z2. The main body sub recess 64 of the 3 rd main body housing recess 62c extends in the 2 nd direction Z2 from the main body main recess 63, then bends and extends so as to extend in the 1 st direction Y2, and further extends in the 2 nd direction Z2. The main body sub-recess 64 of each main body housing recess 62 is adjacent to each other in the 1 st direction Y.

A main body hole 64h that penetrates the case main body 61 in the stacking direction X is formed in a main body sub end portion 64a that is an end portion of the main body sub recess 64 in the 2 nd direction Z2 of each main body housing recess 62. The main body hole 64h opens at the bottom surface of the main body sub-recess 64. The main body hole portion 64h is elongated and rectangular in plan view of the 1 st main body surface 61a. The longitudinal direction of the main body hole 64h is along the 2 nd direction Z. The main body sub end 64a is disposed so as to be shifted in the 2 nd direction Z1 in the order of the main body sub end 64a of the 1 st main body accommodating recess 62a, the main body sub end 64a of the 2 nd main body accommodating recess 62b, and the main body sub end 64a of the 3 rd main body accommodating recess 62 c. Therefore, the main body hole 64h is also arranged in the order of the main body hole 64h of the 1 st main body accommodating recess 62a, the main body hole 64h of the 2 nd main body accommodating recess 62b, and the main body hole 64h of the 3 rd main body accommodating recess 62c, shifted in the 2 nd direction Z1.

As shown in fig. 5, 3 cover accommodating recesses 72 for accommodating the connector bodies 50 are formed in the 1 st cover surface 71a of the cover 71. When the 1 st lid body surface 71a is viewed in plan, each lid body accommodating recess 72 includes a lid body main recess 73 having a substantially rectangular hole shape and a lid body sub-recess 74 having a belt shape.

In a state where the case main body 61 and the case cover 71 are stacked, the main body accommodating recess 62 and the cover accommodating recess 72 are aligned in the stacking direction X. That is, when the 1 st lid body surface 71a is viewed in plan, the short side direction of each lid body main recess 73 extends along the 1 st direction Y, and the long side direction of each lid body main recess 73 extends along the 2 nd direction Z. The lid main recessed portions 73 of the lid housing recessed portions 72 are adjacent to each other in the 1 st direction Y, and the lid sub recessed portions 74 of the lid housing recessed portions 72 communicate with the lid main recessed portions 73 and open at positions in the 2 nd direction Z2 on the inner circumferential surface of the lid main recessed portions 73. The 3 lid receiving recesses 72 are arranged in the 1 st direction Y1 in the order of the 1 st lid receiving recess 72a, the 2 nd lid receiving recess 72b, and the 3 rd lid receiving recess 72 c. When the 1 st cover surface 71a is viewed in plan, the 1 st cover receiving recess 72a has a crank shape that is bent and extended in the same direction as the 1 st main body receiving recess 62 a. The 2 nd cover receiving recess 72b has a crank shape bent and extended in the same direction as the 2 nd main body receiving recess 62 b. The 3 rd cover receiving recess 72c has a crank shape bent and extended in the same direction as the 3 rd main body receiving recess 62 c. The cover sub-end 74a, which is the end of the cover main recess 73 in the 2 nd direction Z2 of each cover receiving recess 72, is arranged in the 2 nd direction Z1 in the order of the cover sub-end 74a of the 1 st cover receiving recess 72a, the cover sub-end 74a of the 2 nd cover receiving recess 72b, and the cover sub-end 74a of the 3 rd cover receiving recess 72 c.

A circular lid hole 73h that penetrates the case lid 71 in the stacking direction X is formed in the lid main recess 73 of each lid housing recess 72. The cover hole 73h opens at a substantially central portion of the bottom surface of the cover main recess 73. The cover hole portions 73h of the cover receiving concave portions 72 are aligned in the 1 st direction Y. The diameter of the cover hole portion 73h is slightly smaller than the diameter of the conductive pin 27. The conductive pin 27 is inserted into the lid hole 73h of each lid housing recess 72 so as to extend in the stacking direction X.

As shown in fig. 6, the portion of the 1 st body surface 61a of the case body 61 where the body accommodating recess 62 is not formed is in contact with the portion of the 1 st cover surface 71a of the case cover 71 where the cover accommodating recess 72 is not formed. Then, the housing main body 61 and the housing cover 71 are fixed to each other, and the connector housing portion 60a for housing the connector main body 50 is formed by the main body housing recess 62 and the cover housing recess 72. Therefore, the housing 60 has a connector housing portion 60a. The connector housing portion 60a is defined by the inner surface of the main body main recess 63, the inner surface of the main body sub recess 64, the inner surface of the cover main recess 73, and the inner surface of the cover sub recess 74. The connector receiving portion 60a communicates with the outside of the housing 60 through the main body hole portion 64h and the cover body hole portion 73h.

Next, the connector body 50 will be explained.

As shown in fig. 4 and 5, the 3 connector bodies 50 are arranged in the 1 st direction Y1 in the order of the 1 st connector body 50a, the 2 nd connector body 50b, and the 3 rd connector body 50c. The 1 st connector body 50a is accommodated in the connector accommodating portion 60a formed by the 1 st body accommodating recess 62a and the 1 st cover accommodating recess 72 a. The 2 nd connector body 50b is housed in the connector housing portion 60a formed by the 2 nd body housing recess 62b and the 2 nd cover housing recess 72 b. The 3 rd connector body 50c is accommodated in the connector accommodating portion 60a formed by the 3 rd body accommodating recess 62c and the 3 rd cover accommodating recess 72 c.

Each connector main body 50 has a terminal portion 51 into which the conductive pin 27 is inserted and removed, and a connecting portion 52 for electrically connecting the terminal portion 51 and the circuit board 31. When the end of the conductive pin 27 electrically connected to the electric motor 17 is one end of the conductive pin 27, the other end of the conductive pin 27 can be inserted into and removed from the terminal portion 51. Each connector main body 50 is formed by bending and deforming an integral copper plate. That is, in each connector body 50, the terminal portion 51 and the connection portion 52 are formed of one copper plate.

The terminal portion 51 is accommodated in a connector accommodating portion 60a formed by the main body main recess 63 and the cover main recess 73. The connector 52 is accommodated in a connector accommodating portion 60a formed by the main body main recess 63, the main body sub recess 64, the cover main recess 73, and the cover sub recess 74. Note that, the basic configurations of the terminal portion 51 and the connecting portion 52 are the same in the 1 st connector main body 50a, the 2 nd connector main body 50b, and the 3 rd connector main body 50c. The following description of the connector main body 50 is common to the connector main bodies 50 unless otherwise noted.

First, the terminal portion 51 will be explained.

As shown in fig. 6, 7, and 8, the terminal portion 51 includes a pair of sandwiching portions 53 that rise in the stacking direction X and face each other in the 1 st direction Y. The pair of holding portions 53 includes a pair of 1 st holding portions 54 which are rectangular plate-shaped and face each other in the 1 st direction Y, and a pair of 2 nd holding portions 55 which are rectangular plate-shaped and extend from both ends in the 2 nd direction Z of the pair of 1 st holding portions 54.

The lateral direction of the 1 st clamping portion 54 and the longitudinal direction of the 2 nd clamping portion 55 are along the stacking direction X. The 2 nd clamping portion 55 has a short side direction along the 2 nd direction Z. The 2 nd clamping portion 55 is continuous with the end of the 1 st clamping portion 54 at 4 in total, which is the two ends in the 2 nd direction Z of one 1 st clamping portion 54 and the two ends in the 2 nd direction Z of the other 1 st clamping portion 54.

The end of the 2 nd nip portion 55 in the 1 st stacking direction X1 protrudes from the end of the 1 st nip portion 54 in the 1 st stacking direction X1. Thus, the sandwiching portion 53 viewed from the 1 st direction Y has a shape in which the central portion in the 2 nd direction Z sandwiched by the 2 nd sandwiching portion 55 among the end portions in the 1 st stacking direction X1 is recessed in the 2 nd stacking direction X2.

Each 1 st clamping portion 54 is bent from the middle portion in the 2 nd direction Z to both end portions. The gap in the 1 st direction Y between the pair of 1 st nipping portions 54 decreases from the middle portion in the 2 nd direction Z of each 1 st nipping portion 54 toward both end portions. On the other hand, with respect to the 2 nd sandwiching portions 55, the 1 st direction Y interval between the 2 nd sandwiching portions 55 arranged in the 1 st direction Y is the same throughout the 2 nd direction Z. The clamping portion 53 is bent at the boundary between the 1 st clamping portion 54 and the 2 nd clamping portion 55.

The terminal portion 51 has a pair of coupling portions 56 which are rectangular plate-shaped and arranged in the 2 nd direction Z, and a continuous portion 59 which is rectangular plate-shaped and continuous with the 2 nd sandwiching portion 55. The continuous portion 59 extends from the 2 nd clamping portion 55 located on the 1 st direction Y1 side and the 2 nd direction Z2 side among the 2 nd clamping portions 55. The short side direction of the continuous portion 59 is along the stacking direction X. The longitudinal direction of the continuous portion 59 is along the 2 nd direction Z. The dimension of the continuous portion 59 in the stacking direction X is smaller than the dimension of the continuous 2 nd nip portion 55 in the stacking direction X. The continuous portion 59 is continuous with a portion of the 2 nd sandwiching portion 55 on the 1 st stacking direction X1 side. The pair of coupling portions 56 extend in the 1 st direction Y from the 1 st stacking direction X1 end portions of the 2 nd sandwiching portion 55. Each coupling portion 56 is continuous with each 2 nd clamping portion 55 so as to connect the end portions of the 2 nd clamping portions 55 arranged in the 1 st direction Y to each other. Therefore, the coupling portion 56 couples the pair of sandwiching portions 53 to each other at the pair of sandwiching portions 53 on the 1 st stacking direction X1 side.

As shown in fig. 5 and 8, the coupling portion 56 positioned in the 2 nd direction Z2 of the pair of coupling portions 56 is a rectangular plate shape whose longitudinal direction extends in the 2 nd direction Z, and the dimension in the 2 nd direction Z is larger than the dimension in the 2 nd direction Z of the continuous 2 nd sandwiching portion 55. The continuous portion 59 is continuous with an end of the connecting portion 56 in the 1 st direction Y1.

The holding hole 53h is defined by the end of the pair of 1 st holding portions 54 in the 1 st stacking direction X1, the inner end of the 2 nd holding portion 55 in the 2 nd direction Z, and the inner end of the pair of coupling portions 56 in the 2 nd direction Z. The holding hole 53h communicates with a space between the pair of 1 st holding portions 54. The sandwiching hole 53h is rectangular in shape with its longitudinal direction along the 2 nd direction Z when viewed from the stacking direction X. Therefore, the clamping portion 53 has a clamping hole 53h at the end in the 1 st stacking direction X1.

As shown in fig. 8, the terminal portion 51 has a pair of engaging portions 57 located on both sides of the sandwiching portion 53 in the 2 nd direction Z. Each engaging portion 57 has a notch portion 57a formed by cutting out the outer end portion of the 2 nd sandwiching portion 55 in the 2 nd direction Z and claw portions 57b positioned on both sides of the sandwiching portion 53 in the 2 nd direction Z.

The notches 57a are formed at the end of one of the clamping portions 53 in the 2 nd direction Z1 and at the end of the other clamping portion 53 in the 2 nd direction Z2, respectively. Specifically, the notch 57a formed at one end of the 2 nd direction Z of the clip portion 53 is formed by cutting a notch at the end on the 2 nd direction Z2 side of the 2 nd clip portion 55 located on the 1 st direction Y2 side and on the 2 nd direction Z2 side. The notch 57a formed at the other end of the clip portion 53 in the 2 nd direction Z is formed by cutting a notch at the end on the 2 nd direction Z1 side of the 2 nd clip portion 55 located on the 1 st direction Y1 side and on the 2 nd direction Z1 side.

Each claw portion 57b has a substantially rectangular flat plate shape, and a part of an end portion in the 2 nd stacking direction X2 is notched and has a concave shape in a plan view. The claw portion 57b extends from the 2 nd sandwiching portion 55 where the notch portion 57a is not formed. More specifically, in the 2 nd clamping portion 55 located on the 1 st direction Y1 side and the 2 nd direction Z2 side, a claw portion 57b extends from an end portion in the 2 nd direction Z2. The claw portion 57b is positioned closer to the 2 nd stacking direction X2 than the continuous portion 59. In the 2 nd gripping portion 55 located on the 1 st direction Y2 side and the 2 nd direction Z1 side, a claw portion 57b extends from an end portion in the 2 nd direction Z1. The 2 nd sandwiching portion 55 continuous with the claw portions 57b is aligned with the notch portion 57a in the 1 st direction Y. Each claw portion 57b extends from an end of the 2 nd sandwiching portion 55 toward the notch portions 57a aligned in the 1 st direction Y. Therefore, the claw portions 57b are continuous from both end portions of the grip portion 53 in the 2 nd direction Z by being continuous with the 2 nd grip portion 55.

The pair of engaging portions 57 engage with the notches 57a and the pawls 57b arranged in the 1 st direction Y on the opposite side of the pair of sandwiching portions 53 in the stacking direction X from the coupling portion 56. The pair of engagement portions 57 hold the standing posture of the pair of 1 st nipping portions 54 and the respective 2 nd nipping portions 55 in the stacking direction X, and therefore the pair of nipping portions 53 are restrained so as not to be separated from each other.

As shown in fig. 5, the terminal portions 51 overlap with the lid body holes 73h formed in the lid body main recess 73 in the stacking direction X. The space between the pair of 1 st nipping portions 54 communicates with the cover hole portion 73h. The clamp hole 53h of the clamp portion 53 communicates with the lid hole portion 73h through a space between the pair of 1 st clamp portions 54. The conductive pin 27 inserted into the cover hole 73h passes between the pair of 1 st nipping portions 54 and is inserted into the nipping hole 53h. Thereby, the pair of clamping portions 53 clamp the conductive pin 27 between the pair of 1 st clamping portions 54. The conductive pin 27 is held by a pair of 1 st holding portions 54 from both sides in the 1 st direction Y.

Next, the connection portion 52 will be described.

As shown in fig. 7 and 8, the connecting portion 52 includes a flat plate-like extension portion 81 provided upright in the stacking direction X, and a flat plate-like protruding portion 84 protruding from a part of an end portion of the extension portion 81. The extension portion 81 includes a 1 st extension portion 82 of a substantially rectangular plate shape erected in the stacking direction X and a 2 nd extension portion 83 of a rectangular plate shape continuous with the 1 st extension portion 82.

The 1 st extension 82 has a longitudinal direction along the 2 nd direction Z. An end of the 1 st extension portion 82 on the 1 st stacking direction X1 side in a portion on the 2 nd direction Z1 side is continuous with an end of the 1 st direction Y2 of the connection portion 56 on the 2 nd direction Z2 side. Therefore, the 1 st extension portion 82 is continuous with the pair of gripping portions 53. The 1 st extension portion 82 is aligned in the 2 nd direction Z with the 2 nd clip portion 55 located on the 1 st direction Y2 side and the 2 nd direction Z2 side. The 1 st extension portion 82 is arranged in the 1 st direction Y with a part of the 2 nd direction Z1 side and the continuous portion 59.

The 2 nd extension portion 83 extends from the end of the 1 st extension portion 82 in the 1 st stacking direction X1 toward the 1 st stacking direction X1 at a portion on the 2 nd direction Z2 side of the 1 st extension portion 82. The projection 84 extends from an end of the 2 nd extension 83 in the 1 st stacking direction X1 toward the 1 st stacking direction X1 at a portion on the 2 nd direction Z2 side of the 2 nd extension 83.

As shown in fig. 4 and 5, the 1 st extension portion 82 of each connector body 50 has different crank shapes as the body sub-recess 64 of the housed body housing recess 62 and the cover sub-recess 74 of the housed cover housing recess 72. Specifically, the 1 st extension portion 82 of the 1 st connector body 50a extends in the 2 nd direction Z2 from the holding portion 53, then bends and extends so as to extend in the 1 st direction Y1, and further extends in the 2 nd direction Z2. The 1 st extension portion 82 of the 2 nd connector body 50b extends from the holding portion 53 in the 1 st direction Y2, and then bends and extends so as to extend in the 2 nd direction Z2. The 1 st extension portion 82 of the 3 rd connector body 50c extends from the holding portion 53 in the 2 nd direction Z2, then bends and extends so as to extend in the 1 st direction Y2, and further extends in the 2 nd direction Z2. Therefore, the 1 st extension portion 82 of each connector main body 50 has a bent portion 85 bent in the middle of the 2 nd direction Z.

As shown in fig. 4 and 5, the end of the 1 st extension 82 in the 2 nd direction Z2 is displaced in the 2 nd direction Z1 from the end of the 1 st extension 82 of the 1 st connector body 50a, the end of the 1 st extension 82 of the 2 nd connector body 50b, and the end of the 1 st extension 82 of the 3 rd connector body 50c in this order. Therefore, the 2 nd extended portion 83 is also arranged to be shifted in the 2 nd direction Z1 in the order of the 2 nd extended portion 83 of the 1 st connector body 50a, the 2 nd extended portion 83 of the 2 nd connector body 50b, and the 2 nd extended portion 83 of the 3 rd connector body 50c. The projecting portion 84 of each connector main body 50 projects from the main body hole portion 64h formed in the main body sub-recess 64 to be received outside the connector receiving portion 60a.

As shown in fig. 6, the 2 nd extension 83 is located in the main body hole 64h. The protruding portion 84 protrudes from the main body hole portion 64h toward the circuit board 31 and out of the connector housing portion 60a. Further, the circuit board 31 is formed with 3 board holes 31d shifted from each other in the 2 nd direction Z so as to correspond to the main body hole portions 64h in the stacking direction X. The projecting end of the projecting portion 84 is soldered to the circuit board 31 in a state inserted into the board hole 31d. Therefore, the protruding portion 84 protrudes outside the case 60 and is inserted into the circuit board 31. The connecting portion 52 electrically connects the terminal portion 51 and the circuit board 31. When the end of the conductive pin 27 electrically connected to the electric motor 17 is one end of the conductive pin 27, the other end of the conductive pin 27 is connected to the terminal portion 51, and therefore the connector 49 can be said to electrically connect the other end of each conductive pin 27 to the circuit board 31.

As shown in fig. 1, the electric motor 17 and the circuit board 31 of the inverter device 30 are electrically connected via the motor wires 21a, the cluster block 29, the conductive pins 27, and the connector bodies 50. Therefore, each of the conductive pins 27 is used to electrically connect the electric motor 17 with the inverter device 30.

Next, a method of forming the connector body 50 will be described together with the operation of the present embodiment.

As shown in fig. 9, when the connector body 50 is formed, the base material 150 is formed by press-forming from a single copper plate. The substrate 150 is flat as a whole. In the manufacture of the 1 st connector body 50a, the 2 nd connector body 50b, and the 3 rd connector body 50c, the base material 150 molded by the same press mold is used. For convenience of explanation, the shape of the base material 150 will be described below with the base material 150 placed so that the thickness direction of the base material 150 is along the stacking direction X.

In the base material 150, the terminal portions 51 and the connecting portions 52 are continuous with each other so as to be arranged in the 1 st direction Y. The terminal portion 51 has a holding hole 53h. The clamping portion 53 extends so as to surround the clamping hole 53h. The pair of 1 st sandwiching portions 54 are located on both sides in the 1 st direction Y with the sandwiching hole 53h therebetween. The 2 nd clamping portion 55 extends from the 1 st clamping portion 54 on both sides in the 2 nd direction Z with the pair of the 1 st clamping portions 54 therebetween. The pair of coupling portions 56 extends to connect 2 nd clamping portions 55 arranged in the 1 st direction Y. The continuous portion 59 is continuous with the coupling portion 56 on the 2 nd direction Z2 side and the 2 nd gripping portion 55 located on the 1 st direction Y1 side and the 2 nd direction Z2 side. The notches 57a are formed in the 2 nd clamping portion 55 located on the 1 st direction Y1 side and the 2 nd direction Z1 side and the 2 nd clamping portion 55 located on the 1 st direction Y2 side and the 2 nd direction Z2 side, respectively. The claw portion 57b extends from each of the 2 nd gripping portion 55 located on the 1 st direction Y1 side and the 2 nd direction Z2 side and the 2 nd gripping portion 55 located on the 1 st direction Y2 side and the 2 nd direction Z1 side. The connecting portion 52 of the base 150 includes an extended portion 81 continuous with the connecting portion 56 and a protruding portion 84 continuous with the extended portion 81.

The base material 150 is folded along the 1 st folding line R1, the 2 nd folding line R2, the 3 rd folding line R3, and the 4 th folding line R4. The 1 st, 3 rd and 4 th folding lines R1, R3 and R4 are mountain folding lines and are shown by single-dot chain lines in fig. 9. The 2 nd folding line R2 is a valley folding line, and is shown by a two-dot chain line in fig. 9.

The 1 st folding lines R1 are arranged in the 1 st direction Y and extend 2 in the 2 nd direction Z. The 1 st broken line R1 is located at a boundary between the pair of coupling portions 56 and the 2 nd clamping portion 55 and a boundary between the coupling portion 56 and the 1 st extending portion 82 and the continuous portion 59. The 2 nd folding lines R2 are arranged in the 2 nd direction Z and extend 2 in the 1 st direction Y. The 2 nd folding line R2 is located at a boundary between the pair of 1 st and 2

nd sandwiching portions

54 and 55. The 3 rd folding line R3 is 2 folding lines extending in the 1 st direction Y. The 3 rd folding line R3 is located on the 1 st direction Y1 side and the 2 nd direction Z2 side and on the 1 st direction Y2 side and the 2 nd direction Z1 side on the 2 nd direction Z outer side than the 2 nd folding line R2. The 3 rd broken line R3 is located at the boundary between the 2 nd clamping portion 55 and the claw portion 57b. The 4 th folding line R4 extends in the 1 st direction Y and is located midway in the 2 nd direction Z of the pair of 1 st nipping portions 54.

The base material 150 is bent along the above-described folding lines. First, the base material 150 is bent along the 1 st folding line R1. Thereby, the pair of 1 st clamping portion 54, 2 nd clamping portion 55, continuous portion 59, and connecting portion 52 are in a posture of standing up in the stacking direction X. The coupling portion 56 is located on the 1 st stacking direction X1 side of the 2 nd nip portion 55. The notch 57a and the claw 57b are positioned on the 2 nd stacking direction X2 side of the coupling portion 56. The notch 57a and the claw 57b are arranged on both sides in the 2 nd direction Z in the 1 st direction Y.

Next, the base material 150 is bent along the 4 th folding line R4. Thus, the pair of 1 st sandwiching portions 54 is curved between the 2 nd folding lines R2 so that the portion along the 4 th folding line R4 is positioned at the outermost side in the 1 st direction Y. The base material 150 is further bent along the 2 nd folding line R2. Thereby, the 2 nd clamping portion 55 is not bent.

Next, the base material 150 is bent along the 3 rd folding line R3. Thus, the claw portions 57b are formed to extend toward the notches 57a aligned in the 1 st direction Y, and are engaged with the notches 57 a.

Although not shown in fig. 9, the base material 150 is bent along a fold line extending in the short side direction of the 1 st extension 82 at a position halfway in the 2 nd direction Z of the 1 st extension 82. Thus, the bent portion 85 is formed in the 1 st extended portion 82. By making the formation position of the bent portion 85 in the 1 st extension portion 82 different, the crank shape of the 1 st extension portion 82 can be made different. Thus, the 1 st connector body 50a, the 2 nd connector body 50b, and the 3 rd connector body 50c having the 1 st extension 82 having different crank shapes can be manufactured from the base 150.

In the above embodiment, the following effects can be obtained.

(1) The connector body 50 is formed of an integral metal plate continuous from the pair of clamping portions 53 to the projecting portion 84. Since the connector body 50 can be formed by an integral metal plate in this manner, welding is not required in the manufacture of the connector 49. Therefore, the productivity of the connector 49 can be improved.

(2) The terminal portion 51 includes a coupling portion 56 that couples the pair of clip portions 53 to each other, and a pair of engaging portions 57 that engage with each other on the opposite side of the pair of clip portions 53 from the coupling portion 56, and thereby restrain the pair of clip portions 53 from separating from each other. Therefore, the pair of clamping portions 53 clamp the conductive pin 27 more firmly by the coupling portion 56 and the engaging portion 57, and the connection between the conductive pin 27 and the connector 49 is stabilized.

(3) The connecting portion 52 has an extended portion 81 that connects the terminal portion 51 and the protruding portion 84 and is housed inside the case 60, and the extended portion 81 has a bent portion 85 that is bent. Therefore, even if stress is applied to the connector main body 50 in accordance with vibration of the electric compressor 10, the applied stress can be attenuated at the bent portion 85, and thus durability of the connector 49 against vibration can be improved.

(4) The conductive pin 27 has a copper layer 27b on the surface, and the connector body 50 is made of a copper plate. Thus, the conductive pin 27 and the clip portion 53 are in contact with each other with the same copper, and therefore contact resistance can be suppressed. Therefore, a larger electric power can be supplied from the inverter device 30 to the electric motor 17.

(5) Since there is no welding portion in the connector body 50, the durability of the connector body 50 against stress applied to the connector body 50 due to vibration of the electric compressor 10 can be improved.

(6) Since it is not necessary to provide the connector main body 50 with the overlapping members required for welding, the connector main body 50 can be downsized in accordance with the omission of the overlapping of the members. Further, since a space for inserting an electrode used for welding to the connector body 50 is not required in the case 60, the case 60 can be downsized in accordance with the omission of the space. Therefore, the overall size of the connector 49 can be reduced.

(7) In the manufacture of the 1 st connector body 50a, the 2 nd connector body 50b, and the 3 rd connector body 50c, the base material 150 molded by the same press mold is used. Therefore, as compared with the case where press molds having different shapes are used for forming the base material 150 for each connector main body 50, the number of steps involved in forming the base material 150 can be reduced, and therefore, the productivity of the connector 49 can be further improved.

The above embodiment can be modified as follows. The above-described embodiments and the following modifications can be implemented in combination with each other within a range not technically contradictory to the technology.

The notch portions 57a may be formed in the 2 nd clamping portion 55 continuous with both end portions of the same 1 st clamping portion 54 in the 2 nd direction Z. In this case, the claw portion 57b is formed in the 2 nd sandwiching portion 55 where the notch portion 57a is not formed. Therefore, the claw portion 57b is also formed to extend from the 2 nd clamping portion 55 continuous with both end portions in the 2 nd direction Z of the same 1 st clamping portion 54.

O may also omit the continuous portion 59 from the clamping portion 53.

One or both of the coupling portion 56 and the pair of engaging portions 57 may be omitted from the terminal portion 51 as long as the conductive pin 27 can be appropriately held by the pair of holding portions 53.

The dimension of the 2 nd extension part 83 and the 2 nd direction Z of the protrusion 84 may be the same.

The pin body 27a of the conductive pin 27 may be a columnar shape other than a cylindrical shape such as a quadrangular prism.

The copper layer 27b may be formed on the surface of the conductive pin 27 by a method other than plating.

The conductive pins 27 may also have a metal layer other than the copper layer 27b on the surface. The conductive pin 27 may not have a metal layer on the surface.

The connector body 50 may be formed of a metal plate other than copper. In short, the terminal portion 51 and the connection portion 52 may be formed of one metal plate other than the copper plate. In this modification, when the conductive pin 27 has a metal layer on the surface, the metal layers on the surfaces of the connector body 50 and the conductive pin 27 may be made of the same metal or different metals.

Note that all the 1 st extension portions 82 of the connector body 50 may have the same crank shape.

The 1 st extension 82 of a part or all of the 3 connector main bodies 50 may not have the bent portion 85 but may have a bent shape.

The base material 150 may be formed by using a press mold having a different shape in the manufacture of all or a part of the connector body 50. In short, the shape of the press mold is not particularly limited as long as the terminal portion 51 and the connecting portion 52 continuous to the sandwiching portion 53 and the 1 st extending portion 82 can be formed from one base material 150.

The shapes of the main body accommodating recess 62 and the lid body accommodating recess 72 are not particularly limited. In short, the shapes of the body receiving recess 62 and the cover receiving recess 72 may be changed as appropriate as long as the connector body 50 can be received in the body receiving recess 62 and the cover receiving recess 72.

The number of the connector bodies 50 accommodated in the housing 60 is not particularly limited. In this case, the shape and the number of the body receiving recess 62 and the cover receiving recess 72 formed in the housing 60 may be changed so as to correspond to the number of the connector bodies 50 received in the housing 60.

The electric compressor 10 may be configured such that the inverter device 30 is disposed radially outward of the rotary shaft 15 with respect to the housing 11. In short, the compression unit 16, the electric motor 17, and the inverter device 30 may not be arranged in this order in the axial direction of the rotary shaft 15.

The compression section 16 is not limited to a scroll type, and may be a piston type, a vane type, or the like.

While the electric compressor 10 constitutes the vehicle air-conditioning apparatus 23 in the embodiment, the present invention is not limited thereto, and the electric compressor 10 may be mounted on a fuel cell vehicle, for example, and compress air as a fluid supplied to a fuel cell by the compression unit 16.

Claims

1. An electric compressor is provided with:

a compression section compressing a fluid;

an electric motor that drives the compression section;

an inverter device that drives the electric motor and has a circuit board;

a case having a motor housing chamber for housing the electric motor, an inverter housing chamber for housing the inverter device, and a partition wall for partitioning the motor housing chamber and the inverter housing chamber;

a conductive pin penetrating the partition wall and having one end electrically connected to the electric motor; and

a connector disposed in the inverter housing chamber and electrically connecting the other end of the conductive pin to the circuit board,

the connector has a metallic connector body and a resin case for housing the connector body therein, and is disposed between the circuit board and the partition wall,

the connector main body has a terminal portion into which the other end of the conductive pin is inserted and pulled, and a connecting portion for electrically connecting the terminal portion to the circuit board,

the electric compressor is characterized in that,

the connector main body is formed by bending and deforming an integral metal plate,

the terminal portion has a pair of holding portions opposed to each other and holding the conductive pin,

the connecting portion has a protruding portion that protrudes outside the case and that is inserted into the circuit board.

2. Motor compressor according to claim 1,

the terminal portion has:

a connecting portion connecting the pair of gripping portions to each other; and

and a pair of engaging portions that engage with each other on a side opposite to the coupling portion with respect to the pair of gripping portions, thereby restraining the pair of gripping portions from being separated from each other.

3. Motor compressor according to claim 1 or 2,

the connecting portion has an extension portion which connects the terminal portion with the protruding portion and is housed inside the case,

the extension setting part is provided with a bending part for bending.

4. The motor-driven compressor according to any one of claims 1 to 3,

the conductive pin has a copper layer on a surface,

the metal plate is a copper plate.