JP7279681B2 - electric compressor - Google Patents

Description

The present invention relates to an electric compressor.

The electric compressor includes a compression section that compresses a fluid, an electric motor that drives the compression section, an inverter device that drives the electric motor and has a circuit board, and a housing that accommodates the inverter device. . Further, as disclosed in Patent Document 1, for example, the electric compressor includes a connector that is attached to the housing and electrically connected to the circuit board.

Further, as a connector, there is known one that includes a metal connector main body and a resin case that accommodates the connector main body therein. The connector main body is configured by integrating a tubular metal terminal and a metal lead wire by welding. Conductive pins electrically connected to the electric motor are inserted into the terminals, and the ends of the lead wires are 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.

JP 2015-40538 A

By the way, in recent electric compressors, it is desired to use a metal material having high heat resistance due to the use of higher electric power than ever before. However, since metal materials with high heat resistance are difficult to weld, there is a possibility that the productivity of the welding operation of the connector may decrease.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric compressor capable of improving connector productivity.

An electric compressor that solves the above problems includes a compression section that compresses a fluid, an electric motor that drives the compression section, an inverter device that drives the electric motor and has a circuit board, and a motor that accommodates the electric motor. a housing having a storage chamber, an inverter storage chamber that stores the inverter device, and a partition wall that separates the motor storage chamber from the inverter storage chamber; a conductive pin to be electrically connected; and a connector disposed in the inverter housing chamber and electrically connecting the other end of the conductive pin to the circuit board, wherein the connector is a connector body made of metal. and a resin case that accommodates the connector main body therein, and is arranged between the circuit board and the partition wall, and the connector main body has the other end of the conductive pin inserted and removed. and a connection portion electrically connecting the terminal portion and the circuit board, wherein the connector body is formed by bending and deforming an integral metal plate, and the terminal The part has a pair of clamping parts that face each other and clamps the conductive pin, and the connection part has a protrusion that protrudes outside the case and is inserted into the circuit board. and

According to the above configuration, the connector main body is made of an integral metal plate that continues from the clamping portion to the projecting portion. Thus, since the connector body can be formed from a single piece of metal plate, welding is not required in manufacturing the connector. Therefore, the productivity of connectors can be improved.

In the electric compressor, the terminal portion includes a connection portion that connects the pair of holding portions, and a pair of holding portions that engage with each other on the side opposite to the connection portion with respect to the pair of holding portions. It is preferable to have a pair of engaging portions that constrain them so that they do not separate from each other.

According to the above configuration, the pair of clamping portions clamps the conductive pin more firmly by the connecting portion and the engaging 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 extending portion that connects the terminal portion and the protruding portion and is accommodated inside the case, and that the extending portion has a bent portion that bends. .

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

In the electric compressor, it is preferable that the conductive pin has a copper layer on its surface and the metal plate is a copper plate.
According to the above configuration, since the conductive pin and the clamping portion are in contact with each other with the same copper, the contact resistance can be suppressed. Therefore, a larger amount of electric power can be supplied from the inverter device to the electric motor.

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

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side cross-sectional view showing a partially broken electric compressor according to an embodiment; FIG. 2 is a circuit diagram showing the electrical configuration of the electric compressor; FIG. 2 is a side cross-sectional view showing an enlarged part of the electric compressor. Sectional drawing which shows the connector main body accommodated in the case main body. FIG. 4 is a cross-sectional view showing a connector main body housed in a case lid; 6 is a cross-sectional view taken along line 6-6 in FIG. 4; The side view of a connector main body. The perspective view of a connector main body. An exploded view of the connector main body.

An embodiment embodying an electric compressor will be described below with reference to FIGS. 1 to 9. FIG. The electric compressor of this embodiment is used, for example, in a vehicle air conditioner.
As shown in FIG. 1 , a housing 11 of an electric compressor 10 includes a bottomed cylindrical discharge housing 12 , a bottomed cylindrical motor housing 13 connected to the discharge housing 12 , and a bottomed cylindrical motor housing 13 connected to the motor housing 13 . An inverter case 14 is provided. The discharge housing 12, the motor housing 13, and the inverter case 14 are made of metal material, for example, aluminum. The motor housing 13 has a bottom wall 13a and a peripheral wall 13b cylindrically extending from the outer peripheral edge of the bottom wall 13a.

A rotating shaft 15 is accommodated in the motor housing 13 . Further, the motor housing 13 accommodates a compressing portion 16 that is driven by the rotation of the rotating shaft 15 to compress the refrigerant as a fluid, and an electric motor 17 that rotates the rotating shaft 15 to drive the compressing portion 16. It is The compression unit 16 and the electric motor 17 are arranged side by side in the axial direction, which is the direction in which the rotation axis of the rotation shaft 15 extends. The electric motor 17 is arranged closer to the bottom wall 13a of the motor housing 13 than the compression portion 16 is. A motor housing chamber 18 for housing an electric motor 17 is formed between the compression portion 16 and the bottom wall 13 a in the motor housing 13 . Accordingly, the housing 11 has a motor accommodating chamber 18. As shown in FIG.

The compression unit 16 is, for example, a scroll type configured by a fixed scroll (not shown) fixed within the motor housing 13 and a movable scroll (not shown) arranged opposite to the fixed scroll.

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

A suction port 13h is formed in the peripheral wall 13b. One end of the 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 located on the bottom wall 13a side. The suction port 13h communicates with the motor housing chamber 18 .

Refrigerant sucked from the external refrigerant circuit 22 into the motor housing chamber 18 through the suction port 13h is compressed by the compression unit 16 as the compression unit 16 is driven, and flows out to the external refrigerant circuit 22 through the discharge port 12h. . The refrigerant that has flowed out to 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 housing chamber 18 through the suction port 13h. The electric compressor 10 and the external refrigerant circuit 22 constitute a vehicle air conditioner 23 .

The inverter case 14 is attached to the bottom wall 13 a of the motor housing 13 . An inverter housing chamber 14 a for housing the inverter device 30 is formed in the inverter case 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 side by side in the axial direction of the rotating shaft 15 in this order.

The inverter case 14 has a bottomed cylindrical inverter case main body 24 and a bottomed cylindrical lid member 25 that closes the opening of the inverter case main body 24 . The inverter case main body 24 has a flat case bottom wall 24a and a case peripheral wall 24b extending cylindrically from the outer peripheral edge of the case bottom wall 24a. The lid member 25 has a flat lid bottom wall 25a and a lid peripheral wall 25b cylindrically extending from the outer peripheral edge of the lid bottom wall 25a.

The inverter case main body 24 and the lid member 25 are arranged with the open end face of the case peripheral wall 24b and the open end face of the lid peripheral wall 25b facing each other. The inverter housing chamber 14 a is partitioned by an inverter case main body 24 and a lid member 25 . The inverter case 14 is attached to the bottom wall 13 a of the motor housing 13 with the outer surface of the case bottom wall 24 a of the inverter case main body 24 in contact with the outer surface of the bottom wall 13 a of the motor housing 13 .

The motor housing chamber 18 and the inverter housing chamber 14a are separated by the bottom wall 13a of the motor housing 13 and the case bottom wall 24a of the inverter case main body 24. As shown in FIG. 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 case bottom wall 24a as partition walls.

The inverter case 14 has a high voltage connector 25 c and a low voltage connector 25 d protruding from the outer surface of the lid bottom wall 25 a of the lid member 25 . A connector of the high voltage power supply 32 is connected to the high voltage connector 25c. A connector of the low voltage power supply 33 is connected to the low voltage connector 25d. 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 the vehicle. The low-voltage power supply 33 is a low-voltage battery such as a lead-acid battery that is mounted on the vehicle and has a lower voltage (eg, 12V) than the voltage of the high-voltage battery (eg, 400V).

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

The inverter device 30 has a plurality of switching elements Qu1, Qu2, Qv1, Qv2, Qw1, Qw2. A plurality of switching elements Qu 1 , Qu 2 , Qv 1 , Qv 2 , Qw 1 , Qw 2 perform switching operations to drive the electric motor 17 . The plurality of switching elements Qu1, Qu2, Qv1, Qv2, Qw1, Qw2 are IGBTs (power switching elements). Diodes Du1, Du2, Dv1, Dv2, Dw1 and Dw2 are connected to the plurality of switching elements Qu1, Qu2, Qv1, Qv2, Qw1 and Qw2, respectively. The diodes Du1, Du2, Dv1, Dv2, Dw1 and Dw2 are connected in parallel with the switching elements Qu1, Qu2, Qv1, Qv2, Qw1 and Qw2.

Each switching element Qu1, Qv1, Qw1 constitutes an upper arm of each phase. Each switching element Qu2, Qv2, Qw2 constitutes a lower arm of each phase. The switching elements Qu1 and Qu2, the switching elements Qv1 and Qv2, and the switching elements Qw1 and Qw2 are connected in series. A gate of each switching element Qu1, Qu2, Qv1, Qv2, Qw1, Qw2 is electrically connected to the control computer . The control computer 34 operates by applying a voltage from the low voltage power supply 33 .

The collectors of the respective switching elements Qu1, Qv1, Qw1 are electrically connected to the positive electrode of the high voltage power supply 32 via the first connection line EL1. The emitters of the respective switching elements Qu2, Qv2, Qw2 are electrically connected to the negative pole of the high voltage power supply 32 via the second connection line EL2. The emitters of the switching elements Qu1, Qv1, Qw1 and the collectors of the switching elements Qu2, Qv2, Qw2 are connected in series to the u-phase coil 21u, the v-phase coil 21v, and the w-phase coil 21w, respectively. properly connected.

The control computer 34 controls the driving voltage of the electric motor 17 by pulse width modulation. Specifically, the control computer 34 generates a PWM signal from a high-frequency triangular wave signal called a carrier wave signal and a voltage command signal for instructing voltage. The control computer 34 uses the generated PWM signal to control switching operations (on/off control) of the switching elements Qu1, Qu2, Qv1, Qv2, Qw1, and Qw2. As a result, the DC voltage from the high voltage power supply 32 is converted into AC voltage. The driving of the electric motor 17 is controlled by applying the converted AC voltage to the electric motor 17 as a driving voltage.

Further, the control computer 34 variably controls the duty ratio of the switching operation of each switching element Qu1, Qu2, Qv1, Qv2, Qw1, Qw2 by controlling the PWM signal. Thereby, the rotation speed of the electric motor 17 is controlled. The control computer 34 is electrically connected to the air conditioning ECU 35, and when receiving information about the target rotation speed of the electric motor 17 from the air conditioning ECU 35, rotates the electric motor 17 at the target rotation speed.

The electric compressor 10 has a capacitor 36 and a coil 37 . A 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 first bypass capacitor 36a, a second bypass capacitor 36b, and a smoothing capacitor 36c. One end of the first bypass capacitor 36a is electrically connected to the first connection line EL1. The other end of the first bypass capacitor 36a is electrically connected to one end of the second bypass capacitor 36b. Therefore, the first bypass capacitor 36a and the second bypass capacitor 36b are connected in series. The other end of the second bypass capacitor 36b is electrically connected to the second connection line EL2. An intermediate point between the other end of the first bypass capacitor 36a and one end of the second bypass capacitor 36b is grounded, for example, to the vehicle body.

One end of the smoothing capacitor 36c is electrically connected to the first connection line EL1. The other end of the smoothing capacitor 36c is electrically connected to the second connection line EL2. The first bypass capacitor 36a, the second bypass capacitor 36b, and the smoothing capacitor 36c are connected in parallel. The smoothing capacitor 36c is provided closer to each switching element Qu1, Qu2, Qv1, Qv2, Qw1, Qw2 than the first bypass capacitor 36a and the second bypass capacitor 36b.

Coil 37 is a common mode choke coil. The coil 37 has a first winding 371 provided on the first connection line EL1 and a second winding 372 provided on the second connection line EL2. The coil 37 also has virtual normal mode coils L1 and L2 in addition to the first winding 371 and the second winding 372 . That is, the coil 37 of this embodiment has a first winding 371, a second winding 372, and virtual normal mode coils L1 and L2 in terms of an equivalent circuit. The first winding 371 is connected in series with the virtual normal mode coil L1, and the second winding 372 is connected in series with the virtual normal mode coil L2.

The coil 37, the first bypass capacitor 36a, the second bypass capacitor 36b, and the smoothing capacitor 36c reduce common mode noise. Common mode noise is noise in which currents flow in the same direction in the first connection line EL1 and the second connection line EL2. Common mode noise occurs when the electric compressor 10 and the high voltage power supply 32 are electrically connected via a path other than the first connection line EL1 and the second connection line EL2, such as the body of a vehicle. obtain. Therefore, the coil 37, the first bypass capacitor 36a, the second bypass capacitor 36b, and the smoothing capacitor 36c constitute the LC filter 38. FIG. Therefore, coil 37 constitutes LC filter 38 together with capacitor 36 . Therefore, capacitor 36 and coil 37 are filter elements that constitute LC filter 38 .

As shown in FIG. 1, a plurality of case bosses 24f are erected on the inner surface of the case bottom wall 24a. A plurality of bolt insertion holes 24 h are formed in the inverter case main body 24 . Each bolt insertion hole 24h penetrates each case boss portion 24f. For convenience of illustration, FIG. 1 shows only one case boss portion 24f and one bolt insertion hole 24h. Each bolt insertion hole 24h opens to the outer surface of the case bottom wall 24a. Further, the bottom wall 13a of the motor housing 13 is formed with female screw holes 13c communicating with the respective bolt insertion holes 24h.

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

As shown in FIG. 3, the conductive member 26 has three conductive pins 27 . 1 and 3, only one conductive pin 27 is shown for convenience of illustration. The conductive pin 27 is composed of a cylindrical pin body 27a made of iron. A copper layer 27b is formed on the entire surface of the pin body 27a by plating. Accordingly, the conductive pin 27 has a copper layer 27b on its surface.

The conductive member 26 has a support plate 28a that supports each conductive pin 27. As shown in FIG. The support plate 28a is, for example, a flat plate made of ceramics. The support plate 28 a is attached to the inner surface of the case bottom wall 24 a of the inverter case main body 24 . Plate insertion holes 28h through which the conductive pins 27 are inserted are formed in the support plate 28a. An insulating member 28b made of glass is interposed between each conductive pin 27 and the support plate 28a.

As shown in FIG. 1, one end of each conductive pin 27 is inserted into a housing hole 13d passing through the bottom wall 13a and protrudes into the motor accommodating chamber 18. As shown in FIG. The other end of each conductive pin 27 is inserted into 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 arranged in the motor housing chamber 18 . Three motor wires 21a are led out from each motor coil 21 so as to correspond to the U-phase, V-phase, and W-phase motor coils 21 . The three conductive pins 27 and the three motor wirings 21a are electrically connected via cluster blocks 29, respectively. Accordingly, 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. A holder 40 is accommodated in the inverter accommodation chamber 14a. The holder 40 has a plate-like holder body portion 41 . The holder body portion 41 has a plurality of tubular holder boss portions 48 . The axial direction of each holder boss portion 48 coincides with the thickness direction of the holder body portion 41 . Each holder boss portion 48 protrudes from one surface of the holder body portion 41 in the thickness direction. The holder 40 is placed in the inverter housing chamber 14a with the surface of the holder main body 41 opposite to the protruding surface of the holder boss 48 in the thickness direction of the holder main body 41 placed on each of the case bosses 24f. placed inside. The inside of each holder boss portion 48 communicates with each bolt insertion hole 24 h of the inverter case main body 24 .

The circuit board 31 has a plurality of insertion holes 31h. A plurality of lid boss portions 25 f are erected on the inner surface of the lid member 25 . A plurality of lid insertion holes 25 h are formed in the lid member 25 . Each lid insertion hole 25h penetrates each lid boss portion 25f. In FIG. 1, for convenience of illustration, only one insertion hole 31h of the circuit board 31 and one lid insertion hole 25h are shown. A holder boss portion 48 is inserted through the insertion hole 31 h of the circuit board 31 . The lid boss portion 25f is placed on the tip surface 48e of each holder boss portion 48 in a state in which the lid insertion hole 25h and the inside of each holder boss portion 48 communicate with each other. A bolt B passing through the lid insertion hole 25h of the lid member 25, each insertion hole 31h of the circuit board 31, the inside of each holder boss portion 48, and each bolt insertion hole 24h is connected to each internal thread of the bottom wall 13a of the motor housing 13. The circuit board 31 and the holder 40 are attached to the motor housing 13 by being screwed into the hole 13c. The holder 40 is arranged so as to overlap the circuit board 31 in the inverter housing chamber 14a.

As shown in FIG. 3, a connector 49 electrically connected to the circuit board 31 is arranged in the inverter housing chamber 14a. The connector 49 has three copper connector main bodies 50 and a resin case 60 that accommodates the connector main bodies 50 therein. 1 and 3, only one connector main body 50 is shown for convenience of illustration. Case 60 is attached to holder 40 . Therefore, case 60 is attached to housing 11 . 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, Qw2.

By attaching the case 60 to the holder 40, the connector 49 is arranged between the circuit board 31 and the case bottom wall 24a and overlaps 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 overlap is referred to as the lamination direction X of the circuit board 31 and the connector 49 . Further, among the directions along the stacking direction X, one direction is also referred to as a first stacking direction X1, and the direction opposite to the second stacking direction X2 is also referred to as a second stacking direction X2.

Next, case 60 will be described.
As shown in FIGS. 4 and 5, the case 60 has a case body 61 and a case lid 71 overlapping the case body 61 in the stacking direction X. As shown in FIGS. A plurality of engaging recesses 61c are formed in the first main body surface 61a of the case main body 61 . When the first main body surface 61a is viewed from above, each engaging recess 61c has a circular shape. A plurality of cylindrical engaging projections 71 c protrude from the first lid body surface 71 a of the case lid body 71 . The case main body 61 and the case lid 71 are positioned by inserting the engaging projection 71c into the engaging recess 61c.

As shown in FIG. 4, the first body surface 61a of the case body 61 is formed with three body housing recesses 62 in which the connector bodies 50 are housed. Each main body housing recess 62 has a main body main recess 63 that is a substantially rectangular hole and a strip-shaped main body sub recess 64 when the first main body surface 61a is viewed from above. The main body housing recesses 62 are formed on the first main body surface 61a of the case body 61 in such a state that the main body recesses 63 are aligned in the lateral direction and the longitudinal directions of the main body recesses 63 are aligned. there is In addition, in the following description, the lateral direction of the main body main concave portion 63 is referred to as the first direction Y. As shown in FIG. A longitudinal direction of the main body main concave portion 63 is referred to as a second direction Z. As shown in FIG. The first direction Y is one direction orthogonal to the stacking direction X. As shown in FIG. The second direction Z is a direction orthogonal to both the stacking direction X and the first direction Y. As shown in FIG. Further, one of the directions along the first direction Y may be referred to as a first direction Y1, and the direction opposite to the first direction Y1 may be referred to as a first direction Y2. Among the directions along the second direction Z, one direction may be referred to as a second direction Z1, and the direction opposite to the second direction Z1 may be referred to as a second direction Z2.

The body main recesses 63 of the body housing recesses 62 are adjacent to each other in the first direction Y when the first body surface 61a of the case body 61 is viewed from above. The body sub-recess 64 of each body housing recess 62 communicates with the body main recess 63 . The body sub-recess 64 opens at a portion of the inner peripheral surface of the body main recess 63 located in the second direction Z2.

The three body housing recesses 62 are arranged in the first direction Y1 in the order of the first body housing recess 62a, the second body housing recess 62b, and the third body housing recess 62c. When the first main body surface 61a is viewed in plan, the main body sub-recess 64 of each main body housing recess 62 has a crank shape that extends in the second direction Z2 while bending from the main body main recess 63 . Specifically, the main body sub-recess 64 of the first main body housing recess 62a extends from the main main body recess 63 in the second direction Z2, then bends to extend in the first direction Y1, and further extends in the second direction Z2. extended. The main body sub-recess 64 of the second main body housing recess 62b extends from the main body main recess 63 in the first direction Y2 and then bends to extend in the second direction Z2. The main body sub-recess 64 of the third main body housing recess 62c extends from the main body main recess 63 in the second direction Z2, then bends to extend in the first direction Y2, and further extends in the second direction Z2. The main body sub-recesses 64 of each main body housing recess 62 are adjacent to each other in the first direction Y. As shown in FIG.

A main body hole 64h penetrating the case main body 61 in the stacking direction X is formed at a main body sub-end 64a, which is the end in the second direction Z2 of the main body sub-recess 64 of each main body housing recess 62. As shown in FIG. The main body hole portion 64 h opens to the bottom surface of the main body sub-recessed portion 64 . When the first main body surface 61a is viewed from above, the main body hole portion 64h has an elongated rectangular shape. The longitudinal direction of the body hole portion 64h is along the second direction Z. As shown in FIG. Further, the main body sub-end portion 64a is arranged in the order of the main body sub-end portion 64a of the first main body housing recess 62a, the main body sub-end 64a of the second main body housing recess 62b, and the main body sub-end 64a of the third main body housing recess 62c. are shifted in the second direction Z1. Therefore, the main body hole portion 64h is also arranged in the second direction in the order of the main body hole portion 64h of the first main body housing recess 62a, the main body hole 64h of the second main body housing recess 62b, and the main body hole 64h of the third main body housing recess 62c. It is shifted to Z1.

As shown in FIG. 5, the first lid surface 71a of the case lid 71 is formed with three lid accommodating recesses 72 in which the connector main body 50 is accommodated. When the first lid surface 71a is viewed from above, each lid housing recess 72 has a lid main recess 73 having a substantially rectangular hole shape and a belt-shaped lid sub recess 74 .

When the case main body 61 and the case lid 71 overlap each other, the main body accommodating recess 62 and the lid accommodating recess 72 are aligned in the stacking direction X. As shown in FIG. That is, when the first lid surface 71a is viewed from above, the widthwise direction of each lid main concave portion 73 extends along the first direction Y, and the longitudinal direction of the lid main concave portion 73 extends along the second direction Z. there is The lid main recesses 73 of the lid housing recesses 72 are adjacent to each other in the first direction Y, and the lid sub-recesses 74 of the respective lid housing recesses 72 communicate with the lid main recesses 73. A portion of the inner peripheral surface of the recess 73 that is located in the second direction Z2 is open. The three lid housing recesses 72 are arranged in the first direction Y1 in the order of a first lid housing recess 72a, a second lid housing recess 72b, and a third lid housing recess 72c. When the first lid body surface 71a is viewed from above, the first lid housing recess 72a has a crank shape that extends while bending in the same direction as the first main body housing recess 62a. The second lid housing recess 72b has a crank shape that extends while bending in the same direction as the second body housing recess 62b. The third lid housing recess 72c has a crank shape that extends while bending in the same direction as the third body housing recess 62c. The lid sub-end 74a, which is the end in the second direction Z2 of the lid main recess 73 of each lid housing recess 72, is the lid sub-end 74a of the first lid housing recess 72a, the second lid housing The lid sub-end portion 74a of the recessed portion 72b and the lid sub-end portion 74a of the third lid housing recessed portion 72c are shifted in the order of the second direction Z1.

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 lid hole portion 73 h opens at a substantially central portion of the bottom surface of the lid main concave portion 73 . The lid body holes 73h of the lid housing recesses 72 are arranged in the first direction Y. As shown in FIG. The diameter of the lid hole portion 73 h is slightly smaller than the diameter of the conductive pin 27 . Conductive pins 27 are inserted into the lid holes 73h of the respective lid accommodating recesses 72 so as to extend in the stacking direction X. As shown in FIG.

As shown in FIG. 6, a portion of the first main body surface 61a of the case main body 61 in which the main body housing recess 62 is not formed and a portion of the first lid surface 71a of the case lid 71 in which the lid housing recess 72 is not formed. is in contact with By fixing the case main body 61 and the case lid 71 together, the connector housing portion 60a for housing the connector main body 50 is formed by the body housing recess 62 and the lid body housing recess 72 . Accordingly, the case 60 has a connector accommodating portion 60a. The connector accommodating portion 60 a 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 lid main recess 73 , and the inner surface of the lid sub-recess 74 . The connector accommodating portion 60a communicates with the outside of the case 60 via the body hole portion 64h and the lid hole portion 73h.

Next, the connector main body 50 will be described.
As shown in FIGS. 4 and 5, the three connector bodies 50 are arranged in the first direction Y1 in the order of the first connector body 50a, the second connector body 50b, and the third connector body 50c. The first connector body 50a is housed in a connector housing portion 60a formed by a first body housing recess 62a and a first lid body housing recess 72a. The second connector body 50b is housed in a connector housing portion 60a formed by a second body housing recess 62b and a second lid body housing recess 72b. The third connector body 50c is housed in a connector housing portion 60a formed by a third body housing recess 62c and a third lid body housing recess 72c.

Each connector body 50 has a terminal portion 51 into which the conductive pin 27 is inserted and removed, and a connecting portion 52 that electrically connects the terminal portion 51 and the circuit board 31 . If the end portion of the conductive pin 27 electrically connected to the electric motor 17 is defined as 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 main body 50, the terminal portion 51 and the connection portion 52 are made of a single copper plate.

The terminal portion 51 is housed in a connector housing portion 60 a formed by the main body main recess 63 and the lid body main recess 73 . The connection portion 52 is accommodated in a connector accommodating portion 60 a formed by a main body main recess 63 , a main body sub-recess 64 , a lid main recess 73 and a lid sub-recess 74 . The basic configurations of the terminal portions 51 and the connection portions 52 are the same in the first connector main body 50a, the second connector main body 50b, and the third connector main body 50c. The following description of the connector main body 50 is common to each connector main body 50 unless otherwise specified.

First, the terminal portion 51 will be described.
As shown in FIGS. 6, 7, and 8, the terminal portion 51 has a pair of holding portions 53 standing in the stacking direction X and facing each other in the first direction Y. As shown in FIGS. The pair of sandwiching portions 53 is a pair of first sandwiching portions 54 having a rectangular plate shape and facing each other in the first direction Y, and a pair of rectangular plates extending from both ends of the pair of first sandwiching portions 54 in the second direction Z. and a second holding portion 55 having a shape.

The lateral direction of the first sandwiching portion 54 and the longitudinal direction of the second sandwiching portion 55 are along the stacking direction X. As shown in FIG. The lateral direction of the second holding portion 55 is along the second direction Z. As shown in FIG. The second holding portions 55 are provided at a total of four first holding portions, namely both ends of one first holding portion 54 in the second direction Z and both ends of the other first holding portion 54 in the second direction Z. It continues to the end of 54 .

An end portion of the second holding portion 55 in the first stacking direction X1 protrudes from an end portion of the first holding portion 54 in the first stacking direction X1. As a result, the sandwiching portion 53 viewed from the first direction Y is recessed in the second stacking direction X2 at the center portion in the second direction Z sandwiched between the second sandwiching portions 55 among the end portions in the first stacking direction X1. It has an elliptical shape.

Each first holding portion 54 is curved from the intermediate portion in the second direction Z to both end portions. The gap between the pair of first holding portions 54 in the first direction Y decreases from the intermediate portion in the second direction Z of each first holding portion 54 toward both end portions. On the other hand, in the second holding portions 55, the intervals in the first direction Y between the second holding portions 55 arranged in the first direction Y are the same throughout the second direction Z. As shown in FIG. The clamping portion 53 is bent at the boundary between the first clamping portion 54 and the second clamping portion 55 .

The terminal portion 51 has a pair of connection portions 56 that are square plate-shaped and are arranged in the second direction Z, and a long square plate-shaped continuous portion 59 that is continuous with the second holding portion 55 . The continuous portion 59 extends from the second holding portion 55 located on the first direction Y1 side and the second direction Z2 side of the second holding portion 55 . The lateral direction of the continuous portion 59 is along the stacking direction X. As shown in FIG. The longitudinal direction of the continuous portion 59 is along the second direction Z. As shown in FIG. The dimension in the stacking direction X of the continuous portion 59 is smaller than the dimension in the stacking direction X of the continuous second sandwiching portion 55 . The continuous portion 59 is continuous with a portion of the second holding portion 55 on the first stacking direction X1 side. The pair of connecting portions 56 extends along the first direction Y from the end portion of the second holding portion 55 in the first stacking direction X1. Each connecting portion 56 is continuous with each of the second holding portions 55 so as to connect the ends of the second holding portions 55 arranged in the first direction Y. As shown in FIG. Therefore, the connecting portion 56 connects the pair of sandwiching portions 53 at the pair of sandwiching portions 53 on the first stacking direction X1 side.

As shown in FIGS. 5 and 8, of the pair of connecting portions 56, the connecting portion 56 located in the second direction Z2 has the shape of a rectangular plate whose longitudinal direction extends in the second direction Z. The dimension in the second direction Z is larger than that of the second holding portion 55 . A continuous portion 59 continues to the end of the connecting portion 56 in the first direction Y1.

It is held by the ends of the pair of first holding portions 54 in the first stacking direction X1, the inner ends of the second holding portions 55 in the second direction Z, and the inner ends of the pair of connecting portions 56 in the second direction Z. 53 h of holes are partitioned and formed. The holding hole 53 h communicates with the space between the pair of first holding portions 54 . When viewed from the stacking direction X, the holding hole 53h has a rectangular shape whose longitudinal direction is along the second direction Z. As shown in FIG. Therefore, the holding portion 53 has a holding hole 53h at the end in the first 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 holding portion 53 in the second direction Z. As shown in FIG. Each engaging portion 57 includes a notch portion 57a formed by notching the outer end portion of the second holding portion 55 in the second direction Z, claw portions 57b positioned on both sides of the holding portion 53 in the second direction Z, have.

The notch portions 57a are formed at both end portions of the holding portion 53 in the second direction Z2. Specifically, the cutout portion 57a formed at one end of the holding portion 53 in the second direction Z is located on the first direction Y2 side and on the second direction Z2 side of the second holding portion 55. The end on the Z2 side is cut out. The cutout portion 57a formed at the other end of the holding portion 53 in the second direction Z is located on the second direction Z1 side of the second holding portion 55 located on the first direction Y1 side and on the second direction Z1 side. It is formed by notching the ends.

Each claw portion 57b has a substantially square flat plate shape, and a part of the end portion in the second stacking direction X2 is cut away to form a concave shape in a plan view. The claw portion 57b extends from the second holding portion 55 where the notch portion 57a is not formed. More specifically, the claw portion 57b extends from the end portion in the second direction Z2 of the second holding portion 55 located on the first direction Y1 side and on the second direction Z2 side. The claw portion 57b is located in the second stacking direction X2 from the continuous portion 59. As shown in FIG. A claw portion 57b extends from an end portion in the second direction Z1 of the second holding portion 55 located on the first direction Y2 side and on the second direction Z1 side. The second clamping portion 55 to which the claw portions 57b are continuous is arranged in the first direction Y with the notch portion 57a. Each claw portion 57b extends from the end portion of the second holding portion 55 toward the notch portion 57a arranged in the first direction Y. As shown in FIG. Therefore, each claw portion 57 b is continuous with both end portions of the clamping portion 53 in the second direction Z by being continuous with the second clamping portion 55 .

In the pair of engaging portions 57, the notch portion 57a and the claw portion 57b aligned in the first direction Y are engaged with each other on the side opposite to the stacking direction X from the connecting portion 56 with respect to the pair of holding portions 53. As shown in FIG. Since the pair of engaging portions 57 hold the standing posture in the stacking direction X of the pair of first holding portions 54 and each of the second holding portions 55, the pair of holding portions 53 are restrained so as not to separate from each other. ing.

As shown in FIG. 5, the terminal portion 51 overlaps the lid body hole portion 73h formed in the lid body main concave portion 73 in the stacking direction X. As shown in FIG. The space between the pair of first holding portions 54 communicates with the lid hole portion 73h. The clamping hole 53h of the clamping portion 53 communicates with the lid body hole portion 73h via the space between the pair of first clamping portions 54 . The conductive pin 27 inserted through the lid hole portion 73h passes between the pair of first holding portions 54 and is inserted through the holding hole 53h. Accordingly, the pair of holding portions 53 hold the conductive pin 27 between the pair of first holding portions 54 . The conductive pin 27 is held from both sides in the first direction Y by the pair of first holding portions 54 .

Next, the connecting portion 52 will be described.
As shown in FIGS. 7 and 8 , the connecting portion 52 includes a flat plate-like extension portion 81 erected in the stacking direction X and a flat plate-like projecting portion 84 projecting from a part of the end portion of the extension portion 81 . and have The extension part 81 is composed of a substantially rectangular plate-shaped first extension part 82 erected in the stacking direction X, and a square plate-shaped second extension part 83 continuous with the first extension part 82 . It is

The longitudinal direction of the first extending portion 82 is along the second direction Z. As shown in FIG. Of the part of the first extending portion 82 on the second direction Z1 side, the end portion on the first stacking direction X1 side is continuous with the end portion on the first direction Y1 side of the connecting portion 56 located on the second direction Z2 side. are doing. Therefore, the first extending portion 82 is continuous with the pair of holding portions 53 . The first extending portion 82 is aligned in the second direction Z with the second holding portion 55 located on the first direction Y2 side and the second direction Z2 side. A portion of the first extending portion 82 on the second direction Z1 side is aligned in the first direction Y with the continuous portion 59 .

The second elongated portion 83 extends in the first lamination direction X1 from the end of the first elongated portion 82 in the first lamination direction X1 at a part of the first elongated portion 82 on the second direction Z2 side. . The protruding portion 84 extends in the first stacking direction X1 from the end of the second extending portion 83 in the first stacking direction X1 at a portion of the second extending portion 83 on the second direction Z2 side.

As shown in FIGS. 4 and 5, the first extending portion 82 of each connector body 50 includes a main body sub-recess 64 of the main body housing recess 62 to be housed and a lid body sub-recess of the lid body housing recess 72 to be housed. Like 74, each has a different crank shape. Specifically, the first extending portion 82 of the first connector body 50a extends from the clamping portion 53 in the second direction Z2, then bends to extend in the first direction Y1, and further extends in the second direction Z2. extended. The first extending portion 82 of the second connector main body 50b extends from the holding portion 53 in the first direction Y2 and then bends to extend in the second direction Z2. The first extending portion 82 of the third connector main body 50c extends in the second direction Z2 from the holding portion 53, then bends to extend in the first direction Y2, and further extends in the second direction Z2. Therefore, the first extending portion 82 of each connector body 50 has a bending portion 85 that bends in the middle of the second direction Z. As shown in FIG.

As shown in FIGS. 4 and 5, the end of the first extending portion 82 in the second direction Z2 is the end of the first extending portion 82 of the first connector body 50a and the first extension of the second connector body 50b. The end portion of the extension portion 82 and the end portion of the first extension portion 82 of the third connector main body 50c are shifted in this order in the second direction Z1. Therefore, the second extending portion 83 also has the second extending portion 83 of the first connector main body 50a, the second extending portion 83 of the second connector main body 50b, and the second extending portion 83 of the third connector main body 50c. sequentially shifted in the second direction Z1. The protruding portion 84 of each connector body 50 protrudes out of the connector accommodating portion 60a from the main body hole portion 64h formed in the main body sub-recess 64 to be accommodated.

As shown in FIG. 6, the second extension portion 83 is located in the body hole portion 64h. The protruding portion 84 protrudes from the body hole portion 64h toward the circuit board 31 to the outside of the connector accommodating portion 60a. The circuit board 31 is formed with three board holes 31d shifted in the second direction Z so as to correspond to the main body holes 64h in the stacking direction X. As shown in FIG. The protruding end of the protruding portion 84 is soldered to the circuit board 31 while being inserted into the board hole 31d. Therefore, the protruding portion 84 protrudes to the outside of the case 60 and is inserted through the circuit board 31 . The connection portion 52 electrically connects the terminal portion 51 and the circuit board 31 . Furthermore, if the end of the conductive pin 27 electrically connected to the electric motor 17 is defined as one end of the conductive pin 27, the other end of the conductive pin 27 is connected to the terminal portion 51. It can be said that the other end of the pin 27 and the circuit board 31 are electrically connected.

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

Next, a method for forming the connector main body 50 will be described together with the operation of the present embodiment.
As shown in FIG. 9, when forming the connector main body 50, a substrate 150 is formed by stamping from a sheet of copper plate. The base material 150 has a flat plate shape as a whole. The base material 150 molded using the same punching die is used for manufacturing the first connector main body 50a, the second connector main body 50b, and the third connector main body 50c. In the following, for convenience of explanation, the shape of the base material 150 will be described in a state where the base material 150 is placed so that the thickness direction of the base material 150 is along the stacking direction X. FIG.

In the base material 150, the terminal portion 51 and the connection portion 52 are continuous with each other so as to be aligned in the first direction Y. As shown in FIG. A holding hole 53 h is formed in the terminal portion 51 . The holding portion 53 extends so as to surround the holding hole 53h. The pair of first clamping portions 54 are positioned on both sides in the first direction Y across the clamping hole 53h. The second holding portions 55 extend from the first holding portions 54 on both sides in the second direction Z with the pair of first holding portions 54 interposed therebetween. The pair of connecting portions 56 extends so as to connect between the two second holding portions 55 arranged in the first direction Y. As shown in FIG. The continuous portion 59 is continuous with the connecting portion 56 on the second direction Z2 side and the second holding portion 55 located on the first direction Y1 side and the second direction Z2 side. The notch portion 57a is formed in the second holding portion 55 located on the first direction Y1 side and the second direction Z1 side, and the second holding portion 55 located on the first direction Y2 side and the second direction Z2 side. It is The claw portion 57b is provided from each of the second holding portion 55 located on the first direction Y1 side and the second direction Z2 side and the second holding portion 55 located on the first direction Y2 side and the second direction Z1 side. extended. The connection portion 52 of the base material 150 has an extension portion 81 continuous with the connecting portion 56 and a projecting portion 84 continuous with the extension portion 81 .

The base material 150 is bent along the first folding line R1, the second folding line R2, the third folding line R3, and the fourth folding line R4. The first folding line R1, the third folding line R3, and the fourth folding line R4 are mountain fold lines, which are indicated by dashed lines in FIG. The second folding line R2 is a valley folding line, which is indicated by a chain double-dashed line in FIG.

Two first folding lines R1 extend in the second direction Z side by side in the first direction Y1. The first folding line R<b>1 is located at the boundary between the pair of connecting portions 56 and the second holding portion 55 and the boundary between the connecting portion 56 and the first extended portion 82 and continuous portion 59 . Two second folding lines R2 extend in the first direction Y side by side in the second direction Z. As shown in FIG. The second folding line R<b>2 is positioned at the boundary between the pair of first clamping portion 54 and second clamping portion 55 . The third folding lines R3 are two folding lines extending in the first direction Y. As shown in FIG. The third folding line R3 is positioned on the first direction Y1 side and the second direction Z2 side and on the first direction Y2 side and the second direction Z1 side outside the second direction Z from the second folding line R2. do. The third folding line R3 is positioned at the boundary between the second holding portion 55 and the claw portion 57b. The fourth folding line R4 extends in the first direction Y1 and is positioned between the pair of first holding portions 54 in the second direction Z. As shown in FIG.

The base material 150 is bent along each of the folding lines. First, the base material 150 is bent along the first folding line R1. As a result, the pair of first clamping portion 54, second clamping portion 55, continuous portion 59, and connecting portion 52 are erected in the stacking direction X. As shown in FIG. The connecting portion 56 is positioned on the side of the second holding portion 55 in the first stacking direction X1. The notch portion 57a and the claw portion 57b are positioned closer to the second stacking direction X2 than the connecting portion 56 is. The notch portion 57a and the claw portion 57b are arranged side by side in the first direction Y on both sides in the second direction Z. As shown in FIG.

Next, the base material 150 is bent along the fourth folding line R4. As a result, the pair of first holding portions 54 are curved between the second folding lines R2 so that the portions along the fourth folding lines R4 are located on the outermost sides in the first direction Y. As shown in FIG. Furthermore, the base material 150 is bent along the second folding line R2. As a result, the second holding portion 55 has a shape that does not bend.

Subsequently, the base material 150 is bent along the third folding line R3. As a result, the claw portion 57b has a shape extending toward the notch portion 57a arranged in the first direction Y and engages with the notch portion 57a.

Although the folding lines are not shown in FIG. 9, the folding line extending along the short side direction of the first extending portion 82 is positioned halfway in the second direction Z in the first extending portion 82 . to bend the base material 150 . Thereby, a bent portion 85 is formed in the first extended portion 82 . The crank shape of the first extension portion 82 can be varied by varying the formation position of the bent portion 85 in the first extension portion 82 . Thus, from the base material 150, the first connector body 50a, the second connector body 50b, and the third connector body 50c having different crank-shaped first extensions 82 can be manufactured.

The following effects can be obtained in the above embodiment.
(1) The connector main body 50 is made of an integral metal plate that continues from the pair of holding portions 53 to the protruding portion 84 . Since the connector main body 50 can be formed from a single metal plate in this manner, welding is not required when manufacturing the connector 49 . Therefore, productivity of the connector 49 can be improved.

(2) The terminal portion 51 has a connecting portion 56 that connects the pair of holding portions 53, and engages with the pair of holding portions 53 on the side opposite to the connecting portion 56 so that the pair of holding portions 53 are connected to each other. and a pair of engaging portions 57 that constrain them so that they do not separate. Therefore, the pair of clamping portions 53 clamp the conductive pin 27 more firmly by the connecting portion 56 and the engaging portion 57, and the connection between the conductive pin 27 and the connector 49 is stabilized.

(3) The connection portion 52 has an extension portion 81 that connects the terminal portion 51 and the projecting portion 84 and is accommodated inside the case 60 , and the extension portion 81 has a bent portion 85 that bends. . Therefore, even if stress is applied to the connector main body 50 due to vibration of the electric compressor 10, the applied stress can be damped at the bending portion 85, so that the durability of the connector 49 against vibration can be improved.

(4) The conductive pin 27 has a copper layer 27b on its surface, and the connector main body 50 is made of a copper plate. Therefore, since the conductive pin 27 and the clamping portion 53 come into contact with each other with the same copper, the 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 the connector main body 50 does not have a welded portion, it is possible to improve the durability of the connector main body 50 against the stress applied to the connector main body 50 due to the vibration of the electric compressor 10 .

(6) Since it is not necessary to provide the connector main body 50 with overlapping members necessary for welding, the connector main body 50 can be reduced in size by the amount of omission of overlapping members. Moreover, since there is no need for a space for inserting electrodes used for welding to the connector main body 50 inside the case 60, the size of the case 60 can be reduced to the extent that the space can be omitted. Therefore, the size of the entire connector 49 can be reduced.

(7) The base material 150 molded using the same punching die is used for manufacturing the first connector body 50a, the second connector body 50b, and the third connector body 50c. Therefore, the number of man-hours required for molding the base material 150 can be reduced compared to the case where a punching die having a different shape is used for molding the base material 150 for each connector body 50, so that the productivity of the connector 49 can be further improved. can.

It should be noted that the above embodiment can be implemented with the following modifications. The above embodiments and the following modifications can be combined with each other within a technically consistent range.

(circle) the notch part 57a may be formed in the 2nd clamping part 55 which is continuous with the both ends of the 2nd direction Z of the same 1st clamping part 54. As shown in FIG. In this case, the claw portion 57b is formed in the second holding portion 55 where the notch portion 57a is not formed. Therefore, the claw portion 57b also has a shape extending from the second holding portion 55 that is continuous with both end portions in the second direction Z of the same first holding portion 54 .

O The continuous portion 59 may be omitted from the holding portion 53 .
O As long as the conductive pin 27 can be appropriately held between the pair of holding portions 53, one or both of the connecting portion 56 and the pair of engaging portions 57 may be omitted from the terminal portion 51.

(circle) the dimension of the 2nd direction Z of the 2nd extension part 83 and the protrusion part 84 may be the same.
O The pin main body 27a of the conductive pin 27 may have a columnar shape other than a circular column, such as a rectangular column.

O The method of forming the copper layer 27b on the surface of the conductive pin 27 may be other than plating.
(circle) the conductive pin 27 may have metal layers other than the copper layer 27b on the surface. Also, the conductive pin 27 may not have a metal layer on its surface.

(circle) the connector main body 50 may be formed from metal plates other than copper. In short, the terminal portion 51 and the connection portion 52 may be made of a single metal plate other than a copper plate. In this modified example, when the conductive pin 27 has a metal layer on the surface, the connector body 50 and the metal layer on the surface of the conductive pin 27 may be made of the same metal or may be made of different metals. may

(circle) the 1st extension part 82 of all the connector main bodies 50 may have the same crank shape.
O A part or all of the first extending portions 82 of the three connector bodies 50 may have a shape that does not have the bending portion 85 and does not bend.

o Substrates 150 molded using different shaped stamping dies may be used in the manufacture of all or part of the connector body 50 . In short, the shape of the punching die is not particularly limited as long as the terminal portion 51 and the connection portion 52 can be molded from one sheet of base material 150 with the clamping portion 53 and the first extension portion 82 continuous.

(circle) the shape of the main body accommodation recessed part 62 and the cover accommodation recessed part 72 is not specifically limited. In short, as long as the connector main body 50 can be accommodated in the body housing recess 62 and the lid housing recess 72, the shapes of the body housing recess 62 and the lid body housing recess 72 may be appropriately changed.

(circle) the number of the connector main bodies 50 accommodated in the case 60 is not specifically limited. In this case, the shape and number of the body housing recesses 62 and the lid body housing recesses 72 formed in the case 60 may be changed so as to correspond to the number of connector bodies 50 housed in the case 60 .

O The electric compressor 10 may have, for example, a configuration in which the inverter device 30 is arranged radially outside of the rotating shaft 15 with respect to the housing 11 . In short, the compression unit 16, the electric motor 17, and the inverter device 30 do not have to be arranged side by side in the axial direction of the rotating shaft 15 in this order.

(circle) the compression part 16 may be not only a scroll type but a piston type, a vane type, etc., for example.
○ In the embodiment, the electric compressor 10 constitutes the vehicle air conditioner 23, but the present invention is not limited to this. Air as a fluid may be compressed by the compression section 16 .

DESCRIPTION OF SYMBOLS 10... Electric compressor 11... Housing 13a... Bottom wall 14a... Inverter accommodation chamber 16... Compression part 17... Electric motor 18... Motor accommodation room 24a... Case bottom wall 27... Conductive pin 27b... Copper layer 30 Inverter device 31 Circuit board 49 Connector 50 Connector body 51 Terminal portion 52 Connecting portion 53 Holding portion 56 Connecting portion 57 Engaging portion 60 Case, 81... Extension part, 84... Protrusion part, 85... Bending part.

Claims (4)

a compression section for 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 housing having a motor housing chamber housing the electric motor, an inverter housing chamber housing the inverter device, and a partition wall separating the motor housing chamber and the inverter housing chamber;
a conductive pin penetrating through the partition wall and having one end electrically connected to the electric motor;
a connector arranged in the inverter housing chamber and electrically connecting the other end of the conductive pin and the circuit board;
The connector has a metal connector main body and a resin case that accommodates the connector main body therein, and is arranged between the circuit board and the partition wall,
The electric compressor, wherein the connector body includes a terminal portion into which the other end of the conductive pin is inserted and removed, and a connection portion that electrically connects the terminal portion and the circuit board,
The connector main body is formed by bending and deforming an integral metal plate,
The terminal portion has a pair of sandwiching portions facing each other and sandwiching the conductive pin,
The electric compressor, wherein the connecting portion has a protruding portion that protrudes to the outside of the case and is inserted into the circuit board. The terminal portion is
a connecting portion connecting each of the pair of holding portions;
2. The electric compression according to claim 1, further comprising a pair of engaging portions that engage with each other on the side opposite to the connecting portion to restrain the pair of holding portions from separating from each other. machine. The connection portion has an extension portion that connects the terminal portion and the projecting portion and is housed inside the case,
The electric compressor according to claim 1 or 2, wherein the extension portion has a bent portion that bends. The conductive pin has a copper layer on its surface,
The electric compressor according to any one of claims 1 to 3, wherein the metal plate is a copper plate.

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