Motor compressor

Abstract

To provide a motor compressor which enables improvement of assembly workability.SOLUTION: An electric connection member 60 electrically connects conductive pins 42 with inverter terminals 54 and includes: plate-like bus bars 64; first terminals 66 each of which is provided at the bus bar 64 and with which the conductive pin 42 is connected at the outside of a motor housing 34; second terminals 68 each of which is provided at the bus bar 64 and inserted into an inverter housing 36; and a storage case 62 which houses the bus bars 64 so that the second terminals 68 are exposed, has second through holes 65C each of which allows the conductive pin 42 to be inserted toward the first terminal 66, and is fixed to the motor housing 34. The inverter terminal 54 is provided with a relay terminal 70 which connects the inverter terminal 54 with the second terminal 68 in the inverter housing 36. The electric connection member 60 is moved in an axial direction of a rotary shaft 22 to cause the first terminals 66 and the conductive pins 42 to fit with each other and the second terminals 68 and the relay terminals 70 to fit with each other.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to an electric compressor.

Background Art

[0002] Patent Document 1 discloses an example of a conventional electric compressor. This electric compressor includes a compression unit, a motor, an inverter, and a housing.

[0003] The compression unit compresses a fluid by the rotation of a rotating shaft. The motor rotates the rotating shaft. The inverter has an inverter circuit for driving the motor. The housing has a motor housing and an inverter housing. The motor housing houses the motor. The inverter housing houses the inverter.

[0004] In this electric compressor, the inverter housing is arranged on the outer peripheral surface side of the motor housing, and the motor housing and the inverter housing are arranged side by side in the radial direction of the rotating shaft. Thereby, an increase in the axial length of the electric compressor is suppressed.

[0005] Also, in this electric compressor, a conductive pin electrically connected to the motor is provided on the motor housing, and an inverter terminal electrically connected to the inverter circuit is provided on the inverter housing. The conductive pin and the inverter terminal are connected by a conductor such as a lead wire or a bus bar.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, in the conventional electric compressor described above, a conductor is connected to the conductive pin and the inverter terminal by welding or screwing, resulting in poor assembly workability.

[0008] The present invention has been made in view of the above-described conventional situation, and an object of the present invention is to provide an electric compressor capable of improving assembly workability.

Means for Solving the Problems

[0009] The electric compressor of the present invention includes a rotating shaft, a compression unit that is driven by the rotation of the rotating shaft to compress a fluid, a motor that rotates the rotating shaft, an inverter having an inverter circuit that drives the motor, an inverter housing that houses the inverter, a bottomed cylindrical motor housing that defines an inverter chamber together with the inverter housing, the inverter chamber housing the motor on the inner peripheral surface side and the inverter on the outer peripheral surface side, a bottomed cylindrical compression unit housing that houses the compression unit, a shaft support member provided between the motor housing and the compression unit housing, defining a motor chamber housing the motor together with the motor housing, defining a compression unit chamber housing the compression unit together with the compression unit housing, and having an insertion hole through which the rotating shaft is inserted to rotatably support the rotating shaft, a conductive pin inserted into a first through hole formed in the bottom wall of the motor housing and held with respect to the first through hole, the conductive pin being electrically connected to the motor, a plate-shaped inverter terminal provided inside the inverter housing and electrically connected to a substrate on which a pattern of the inverter circuit is formed, and an electrical connection member that electrically connects the conductive pin and the inverter terminal. The electrical connection member includes a plate-shaped bus bar, a first terminal provided at one end of the bus bar to which the conductive pin is connected outside the motor housing, a second terminal provided at the other end of the bus bar and inserted into the inverter housing, a housing case that houses the bus bar so that the second terminal is exposed and has a second through hole into which the conductive pin can be inserted toward the first terminal, and is fixed to the bottom wall of the motor housing. A relay terminal for connecting the inverter terminal and the second terminal inside the inverter housing is provided on the inverter terminal. By moving the electrical connection member in the axial direction of the rotating shaft, the first terminal and the conductive pin are fitted together, and the second terminal and the relay terminal are fitted together.

[0010] In the electric compressor of the present invention, an inverter terminal connected to an inverter circuit of an inverter housed in an inverter chamber and a conductive pin connected to a motor housed in a motor chamber are electrically connected by an electrical connection member. This electrical connection member has a bus bar, and the bus bar is provided with a first terminal to which a conductive pin is connected outside the motor housing and a second terminal connected to a relay terminal provided on the inverter terminal inside the inverter housing.

[0011] Then, by moving this electrical connection member in the axial direction of the rotating shaft, the first terminal of the bus bar can be connected to the conductive pin by fitting, and the second terminal of the bus bar can be connected to the relay terminal by fitting.

[0012] Therefore, without performing troublesome operations such as welding or screwing, for example, by a simple operation of moving the electrical connection member in the axial direction, the connection between the conductive pin and the first terminal of the bus bar and the connection between the relay terminal provided on the inverter terminal and the second terminal of the bus bar can be performed simultaneously. As a result, the assembly workability of the electric compressor can be improved.

[0013] Therefore, according to this electric compressor, it is possible to improve the assembly workability.

[0014] The inverter terminal preferably has an inverter first terminal provided at one end of the inverter terminal and connected to the pattern, an inverter second terminal provided at the other end of the inverter terminal and connected to the relay terminal, and an extension portion provided between the inverter first terminal and the inverter second terminal and extending so that the inverter second terminal is separated from the substrate. And the extension portion preferably has a bent portion that bends so that the inverter second terminal approaches the conductive pin more than the inverter first terminal.

[0015] In this case, the length of the bus bar connected to the inverter second terminal via the relay terminal and connected to the conductive pin is shortened by the amount that the inverter second terminal approaches the conductive pin due to the bent portion of the extension portion in the inverter terminal. Therefore, it is advantageous in reducing the assembly error and noise of the bus bar.

[0016] The inverter terminal is preferably housed in a resin case made of resin together with the relay terminal so that the inverter first terminal is exposed. The resin case preferably has a resin case through hole into which the second terminal can be inserted toward the relay terminal. And the resin case through hole is preferably partitioned by a tapered surface that gradually reduces the opening area in the insertion direction of the second terminal.

[0017] In this case, by guiding the second terminal of the bus bar along the tapered surface of the resin case through hole, the second terminal can be easily inserted into the resin case through hole.

[0018] The resin case is preferably provided with a recess for increasing the creepage distance between adjacent second terminals between adjacent resin case through holes.

[0019] In this case, the recess provided between adjacent resin case through-holes can contribute to ensuring the creepage distance between the second terminals arranged with this recess therebetween. Therefore, it is advantageous for ensuring the insulation between adjacent second terminals.

[0020] The resin case preferably has ribs extending axially from a relay terminal accommodating portion for accommodating a relay terminal to a bent portion accommodating portion for accommodating a bent portion. And it is preferable that this rib gradually increases in thickness from the relay terminal accommodating portion toward the bent portion accommodating portion.

[0021] In this case, the rigidity of the resin case in the axial direction in which the rib extends is improved. Therefore, when inserting the second terminal of the bus bar into the resin case through-hole, even if the second terminal abuts against the outer surface of the resin case, the contact load at that time can be received by the rib, so that deformation of the resin case can be suppressed. As a result, the second terminal can be easily inserted into the resin case through-hole.

Advantages of the Invention

[0022] According to the electric compressor of the present invention, it is possible to improve the assembly workability.

Brief Description of the Drawings

[0023]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, embodiments embodying the present invention will be described with reference to the drawings. The electric compressor (hereinafter simply referred to as the compressor) 20 of the embodiment is specifically a scroll type electric compressor. This compressor 20 is mounted on a vehicle (not shown) and is applied to a vehicle air conditioner. This vehicle air conditioner is a heat pump cycle device that performs air conditioning in the vehicle interior and temperature adjustment of in-vehicle equipment.

[0025] In this embodiment, the front-rear direction and the up-down direction of the compressor 20 are defined by the solid arrows shown in FIG. 1. Also, the front side of the paper in FIG. 1 is defined as the left side, and the back side of the paper is defined as the right side. In the figures after FIG. 2, the front-rear direction, the up-down direction, and the left-right direction of the compressor 20 are defined corresponding to FIG. 1. In the following description, the front-rear, up-down, and left-right directions are all based on the front-rear, up-down, and left-right directions in FIG. 1. Note that these directions are an example for convenience of explanation, and the posture of the compressor 20 is appropriately changed according to the vehicle or the like on which it is mounted.

[0026] As shown in FIGS. 1 to 3, the compressor 20 of the embodiment constitutes a compressor module 10 incorporated in a heat pump cycle device (not shown). The compressor module 10 integrates a plurality of devices constituting the heat pump cycle device. Specifically, the compressor module 10 integrates the compressor 20 and, for example, an expansion valve, an adjustment valve, an on-off valve, a chiller, a receiver, a water-cooled heat exchanger, and a muffler, which are among the devices constituting the heat pump cycle, although not shown in the drawings.

[0027] This heat pump cycle device controls the switching of the on-off valve and the like according to various operation modes, so that the blown air sent into the vehicle interior is heated and cooled by the refrigerant circulating in the refrigerant circuit, or the cooling heat medium circulating in the heat medium circuit is cooled by the refrigerant circulating in the refrigerant circuit.

[0028] This compressor module 10 has a thick-walled flow path box 12 generally in the shape of a rectangular flat plate. A plurality of devices constituting a heat pump cycle device are attached to the flow path box 12. Although illustration is omitted, the flow path box 12 has, in addition to a refrigerant passage for circulating refrigerant that circulates in the refrigerant circuit in the heat pump cycle device, a heat medium passage for circulating a cooling heat medium that circulates in the heat medium circuit, and the like.

[0029] The compressor 20 is housed within the range of the outer shape of the rectangular flat plate-shaped flow path box 12. Also, in the positional relationship between the flow path box 12 and the compressor 20, the rotation axis center O of a rotation axis 22, which will be described later, in the compressor 20 extends parallel to the main surface having the largest area among the surfaces of the rectangular flat plate-shaped flow path box 12. More specifically, the rotation axis center O of the rotation axis 22 extends parallel to the longitudinal direction of the main surface of the flow path box 12. Note that the compressor 20 may be arranged such that the rotation axis center O of the rotation axis 22 extends perpendicular to the main surface of the flow path box 12.

[0030] The compressor 20 includes a rotation axis 22, a compression part 24, a motor 26, an inverter 28, and a housing 30.

[0031] The housing 30 has a bottomed cylindrical compression part housing 32, a bottomed cylindrical motor housing 34, an inverter housing 36, and a shaft support member 37. The compression part housing 32 and the motor housing 34 have generally cylindrical outer shapes. The inverter housing 36 has a generally rectangular flat plate shape with a thick plate outer shape. The shaft support member 37 has a generally circular flat plate shape with a thick plate outer shape.

[0032] The rotation axis 22 is provided inside the compression part housing 32 and the motor housing 34. The rotation axis 22 has a columnar shape extending in the front-rear direction. The rotation axis 22 is rotatably supported around the rotation axis center O by the motor housing 34 and the shaft support member 37, which will be described later.

[0033] In the direction of the rotation axis O of the rotation shaft 22, the compression part housing 32 and the motor housing 34 are arranged side by side. The motor housing 34 is arranged behind the compression part housing 32.

[0034] In the radial direction of the rotation shaft 22, the motor housing 34 and the inverter housing 36 are arranged side by side. That is, the inverter housing 36 is arranged on the side surface of the motor housing 34.

[0035] In the following description, the direction of the rotation axis O is simply referred to as the axial direction. That is, the axial direction means the axial direction of the rotation shaft 22. Further, the radial direction means the radial direction of the rotation shaft 22. Furthermore, the axial direction coincides with the front-rear direction of the compressor 20. For convenience of explanation, one of the axial directions refers to the front in the compressor 20.

[0036] The compression part housing 32 partitions the compression part chamber 32A. The motor housing 34 partitions the motor chamber 34A. The inverter housing 36 partitions the inverter chamber 36A. An axial support member 37 is provided between the compression part housing 32 and the motor housing 34, and the compression part chamber 32A and the motor chamber 34A are partitioned by this axial support member 37. The axial support member 37 has an insertion hole 37A through which the rotation shaft 22 is inserted, and rotatably supports the rotation shaft 22.

[0037] The compression part 24 is accommodated in the compression part chamber 32A. The compression part 24 compresses the refrigerant by the rotation of the rotation shaft 22. The refrigerant is an example of the "fluid" in the present invention. The compression part 24 is connected to the refrigerant passage of the flow path box 12 via the high-pressure refrigerant hose 14. Although not shown, the motor chamber 34A is connected to the refrigerant passage of the flow path box 12 via a low-pressure refrigerant hose. The refrigerant flowing into the motor chamber 34A from the refrigerant passage of the flow path box 12 via the low-pressure refrigerant hose is sucked into the compression part 24 through a suction passage (not shown) provided in the axial support member 37.

[0038] Although not shown in the drawings, the compression section 24 has a fixed scroll and a revolving scroll. As the revolving scroll rotates due to the rotation of the rotary shaft 22, the volume of the compression chamber formed between the fixed scroll and the revolving scroll changes. As a result, the compression section 24 sucks in and compresses the refrigerant from the refrigerant passage of the flow path box 12 via the low-pressure refrigerant hose, and discharges the compressed refrigerant. The refrigerant discharged from the compression section 24 flows out into the refrigerant passage of the flow path box 12 via the high-pressure refrigerant hose 14.

[0039] The motor 26 is housed in the motor chamber 34A. Although not shown in the drawings, the motor 26 has a stator and a rotor. The stator is connected to the inverter 28. The rotary shaft 22 is fixed to the rotor. When the rotor rotates due to the power supply from the inverter 28 to the stator, the rotary shaft 22 is rotated.

[0040] The inverter 28 is housed in the inverter chamber 36A. As shown in FIG. 4, the inverter 28 has an inverter circuit 28A, a control circuit 28B, and a high-voltage input filter 28C. The inverter circuit 28A drives the motor 26. The control circuit 28B controls the inverter circuit 28A. The high-voltage input filter 28C reduces the noise in the power supplied from the external power supply 57 via the high-voltage connector 56 described later. The inverter circuit 28A, the control circuit 28B, and the high-voltage input filter 28C are each constituted by a substrate, electronic components mounted on the substrate, switching elements, etc. Circuit patterns of each circuit are formed on each substrate. For example, on the substrate 280 constituting the inverter circuit 28A, the pattern of the inverter circuit 28A is formed.

[0041] The compressor 20 includes three conductive pins 42, three relay terminals 70, three inverter terminals 54, three bus bars 64, an electrical connection member 60, and a resin case 80. The three conductive pins 42 are arranged side by side in the left - right direction. Each conductive pin 42 has the same configuration. The three relay terminals 70 are arranged side by side in the left - right direction. Each relay terminal 70 has the same configuration. The three inverter terminals 54 are arranged side by side in the left - right direction. Each inverter terminal 54 basically has the same configuration. The three bus bars 64 are arranged side by side in the left - right direction. Each bus bar 64 has the same configuration.

[0042] As shown in FIGS. 5 and 6, the conductive pin 42 is rod - shaped and is provided in the hermetic terminal 38. In the hermetic terminal 38, an insulating member is interposed between the conductive pins 42.

[0043] The hermetic terminal 38 is provided on the bottom wall 34B of the motor housing 34. The other axial end of the motor housing 34 is the bottom wall 34B. The bottom wall 34B has a substantially disc - shaped configuration and extends radially on the other side in the axial direction of the motor housing 34. A first through - hole 34C (see FIG. 1) that penetrates axially to communicate the motor chamber 34A with the outside is formed in the bottom wall 34B. The hermetic terminal 38 is disposed in the first through - hole 34C, and each conductive pin 42 provided in the hermetic terminal 38 is held with respect to the first through - hole 34C. The hermetic terminal 38 is fixed to the bottom wall 34B by two first fastening members 39. The hermetic terminal 38 ensures the airtightness in the motor chamber 34A. The hermetic terminal 38 is electrically connected to the motor 26.

[0044] Each conductive pin 42 extends linearly in the axial direction and penetrates the first through - hole 34C. One end of each conductive pin 42 is inserted into a resin terminal box 44 disposed in the motor chamber 34A (see FIG. 1). Although not shown, in the terminal box 44, three motor wirings extending from the stator of the motor 26 and one end of each conductive pin 42 are electrically connected via connection terminals respectively.

[0045] The other end of each conductive pin 42 is a connection end portion 46 that protrudes from the bottom wall 34B to the outside of the motor chamber 34A and extends in the axial direction.

[0046] As shown in FIG. 5, the inverter housing 36 has a communication hole 48 at the other axial end. The communication hole 48 extends linearly in the axial direction and opens toward the other axial end, communicating the inverter chamber 36A with the outside. The communication hole 48 has an elongated hole shape that is long in the left-right direction.

[0047] As shown in FIGS. 1 and 4, the resin case 80 is disposed inside the inverter housing 36, that is, in the inverter chamber 36A. The resin case 80 is made of resin and extends long in the axial direction. The resin case 80 is fixed to the inverter housing 36 by a fastening member (not shown).

[0048] As shown in FIGS. 7 and 12, the resin case 80 has a relay terminal accommodating portion 81 at the other axial end, an upper stage portion 82 that is one step higher than the relay terminal accommodating portion 81 and extends long in one axial direction, and a bent portion accommodating portion 95 provided between the relay terminal accommodating portion 81 and the upper stage portion 82. Further, the resin case 80 has a rear end face 83 at the other axial end, a first upper face 84 that is connected to the upper end of the rear end face 83 and extends in one axial direction substantially orthogonal to the rear end face 83, and a second upper face 85 that is one step higher than the first upper face 84 and extends long in one axial direction.

[0049] The rear end face 83 of the resin case 80 faces the communication hole 48 of the inverter housing 36 in the axial direction. As shown in FIGS. 8, 11, and 12, three resin case through holes 86 open in the rear end face 83 of the resin case 80, and two recesses 87 are recessed. Each resin case through hole 86 has the same configuration. Each recess 87 has the same configuration.

[0050] The three resin case through-holes 86 are arranged side by side in the left-right direction with a space therebetween at the rear end surface 83. Each resin case through-hole 86 has a vertically long rectangular cross-sectional shape and penetrates the rear wall of the resin case 80 in the axial direction.

[0051] The opening end portions of the respective resin case through-holes 86 are demarcated by tapered surfaces 88 whose opening areas gradually decrease in the insertion direction of the bus bar second terminal 68 described later. That is, the receiving openings of the respective resin case through-holes 86 are constituted by the tapered surfaces 88. Each tapered surface 88 has a tapered shape in which the opening dimension increases toward the opening end opening to the rear end surface 83. Specifically, each tapered surface 88 has a tapered shape in which the inner width in the left-right direction gradually increases toward the opening and also has a tapered shape in which the inner width in the vertical direction gradually increases toward the opening.

[0052] Each recess 87 is disposed between adjacent resin case through-holes 86. Each recess 87 has a substantially rectangular shape that is longer in the vertical direction than the resin case through-hole 86.

[0053] As shown in FIG. 12, a pair of ribs 89 are provided on the first upper surface 84 of the resin case 80. Each rib 89 extends in the axial direction from the relay terminal accommodating portion 81 to the bent portion accommodating portion 95 of the resin case 80, and the thickness gradually increases from the relay terminal accommodating portion 81 toward the bent portion accommodating portion 95. In this embodiment, the vertical thickness of the rib 89 gradually increases (the vertical height in FIG. 12 gradually increases) from the relay terminal accommodating portion 81 toward the bent portion accommodating portion 95. Specifically, each rib 89 projects upward from the first upper surface 84 and extends long in the direction of the resin case through-hole 86. Each rib 89 has a substantially right-angled triangular shape. Each rib 89 is disposed at the left-right ends on the first upper surface 84 such that the hypotenuse of the right-angled triangle faces obliquely upward to the rear. Further, through-holes 78 through which the inverter first terminals 76 (described later) of the respective inverter terminals 54 are inserted are formed in the second upper surface 85 of the resin case 80.

[0054] As shown in FIGS. 7 and 8, a resin holder 90 is provided inside the relay terminal accommodating portion 81 of the resin case 80. As also shown in FIG. 10, the inside of the holder 90 is partitioned into three accommodating chambers 91. The three accommodating chambers 91 are arranged side by side in the left-right direction. Each relay terminal 70 is accommodated in each accommodating chamber 91 of the holder 90. And the holder 90 that accommodates each relay terminal 70 is accommodated in the relay terminal accommodating portion 81 within the resin case 80.

[0055] The holder 90 has a first regulating wall 90a and a first opening 90b at one axial end in each accommodating chamber 91. Similarly, the holder 90 has a second regulating wall 90c and a second opening 90d at the other axial end in each accommodating chamber 91. The relay terminal 70 accommodated in each accommodating chamber 91 has its axial movement regulated by the first regulating wall 90a and the second regulating wall 90c. Also, an inverter second terminal 77 (to be described later) of the inverter terminal 54 is inserted into the accommodating chamber 91 from the first opening 90b. Similarly, a bus bar second terminal 68 (to be described later) of the bus bar 64 is inserted into the accommodating chamber 91 from the second opening 90d. Each relay terminal 70 axially faces each resin case through hole 86 via each second opening 90d, and thus axially faces the communication hole 48 of the inverter housing 36.

[0056] As shown in FIG. 8, each relay terminal 70 has a first female terminal 71 and a second female terminal 72. The first female terminal 71 and the second female terminal 72 have the same shape and are arranged side by side in the axial direction. Each relay terminal 70 is integrally formed by bending a metal plate or the like.

[0057] Each first female terminal 71 has a pair of first clamping portions 71a in a substantially U shape that can be elastically deformed. Each first female terminal 71 has a first opening end 71b into which an inverter second terminal 77 (to be described later) of the inverter terminal 54 is fitted at one axial end. The first female terminal 71 clamps the inverter second terminal 77 of the inverter terminal 54 inserted through the first opening 90b and the first opening end 71b from one axial end of the relay terminal 70 with a pair of first clamping portions 71a facing each other in the left-right direction by elastic restoring force.

[0058] Similarly, each second female terminal 72 has a pair of second clamping portions 72a that are substantially U-shaped and elastically deformable. Each second female terminal 72 has a second opening end 72b at the other end in the axial direction into which a second bus bar terminal 68 of the bus bar 64, which will be described later, is fitted. The second female terminal 72 elastically clamps the second bus bar terminal 68 of the bus bar 64 inserted through the second opening 90d and the second opening end 72b from the other end in the axial direction of the relay terminal 70 with a pair of second clamping portions 72a that face each other in the left-right direction by elastic restoring force.

[0059] In this way, the first female terminal 71 of the relay terminal 70 and the second inverter terminal 77, which will be described later, of the inverter terminal 54 are axially fitted to each other, so that the first female terminal 71 and the second inverter terminal 77 are connected. Similarly, the second female terminal 72 of the relay terminal 70 and the second bus bar terminal 68 of the bus bar 64, which will be described later, are axially fitted to each other, so that the second female terminal 72 and the second bus bar terminal 68 are connected.

[0060] As shown in FIG. 9, each inverter terminal 54 is plate-shaped and integrally formed by bending a metal plate or the like. Each inverter terminal 54 has three edgewise bending portions and two flatwise bending portions. Specifically, each inverter terminal 54 has, in order from one end in the axial direction to the other end in the axial direction, a first edgewise bending portion, a first flatwise bending portion, a second flatwise bending portion, a second edgewise bending portion, and a third edgewise bending portion.

[0061] The inverter terminal 54 has an inverter first terminal 76 provided at one end of the inverter terminal 54, an inverter second terminal 77 provided at the other end of the inverter terminal 54, and an extending portion 79 provided between the inverter first terminal 76 and the inverter second terminal 77. The inverter first terminal 76 is connected to a pattern formed on the substrate 280 of the inverter circuit 28A. The inverter second terminal 77 is connected to the first female terminal 71 of the relay terminal 70. The extending portion 79 extends so that the inverter second terminal 77 is separated from the substrate 280.

[0062] The inverter terminal 54 has a first stepped portion 73, a second stepped portion 74 that is one step lower than the first stepped portion 73, and a stepped portion 75 that extends in the vertical direction and integrally connects the first stepped portion 73 and the second stepped portion 74. The first stepped portion 73 and the stepped portion 75 are connected by a first bent portion 751 which is a second edgewise bent portion, and the stepped portion 75 and the second stepped portion 74 are connected by a second bent portion 752 which is a third edgewise bent portion. The first bent portion 751 and the second bent portion 752 are examples of the "bent portion" in the present invention. The portions of these first bent portion 751, stepped portion 75, and second bent portion 752 in the inverter terminal 54 are accommodated in a bent portion accommodating portion 95 in the resin case 80.

[0063] The first stepped portion 73 integrally has a long portion 73a that extends axially long in one axial direction by two flatwise bent portions, a short portion 73b that extends axially short in the other axial direction, and an intermediate portion 73c that extends in the left - right direction and connects the long portion 73a and the short portion 73b. The long portion 73a and the intermediate portion 73c are connected by a first flatwise bent portion, and the intermediate portion 73c and the short portion 73b are connected by a second flatwise bent portion.

[0064] Also, at one axial end of the first stepped portion 73, that is, at one axial end of the elongated portion 73a, a vertical portion 73d that is connected by the first edgewise bending portion and extends upward is integrally provided. And the tip of this vertical portion 73d is the inverter first terminal 76. Note that the length of the elongated portion 73a of the three inverter terminals 54 arranged in the left - right direction is such that the elongated portion 73a of the middle inverter terminal 54 has an intermediate length, the elongated portion 73a of the right inverter terminal 54 is longer than the intermediate length, and the elongated portion 73a of the left inverter terminal 54 is shorter than the intermediate length.

[0065] The second stepped portion 74 is longer than the short portion 73b of the first stepped portion 73 and shorter than the elongated portion 73a of the first stepped portion 73, and extends from the lower end of the stepped portion 75 toward the other axial direction. And the other axial end of the second stepped portion 74 is the inverter second terminal 77. That is, the inverter second terminal 77 is constituted by a male terminal.

[0066] Thus, when assuming that the conductive pin 42, the first stepped portion 73, and the second stepped portion 74 are projected onto a virtual axis - orthogonal plane orthogonal to the axial direction, the distance D2 between the conductive pin 42 and the second stepped portion 74 on the virtual axis - orthogonal plane is made shorter than the distance D1 between the conductive pin 42 and the first stepped portion 73 on the virtual axis - orthogonal plane (see FIG. 9. D2 < D1).

[0067] As shown in FIG. 12, the inverter first terminals 76 of the respective inverter terminals 54 each project upward from the through - holes 78 of the resin case 80. And each inverter first terminal 76 is electrically connected to the inverter circuit 28A.

[0068] As shown in FIG. 5, the inverter housing 36 has an extending portion 36B. The extending portion 36B extends to the other axial direction from the bottom wall 34B of the motor housing 34. As shown in FIG. 4, with respect to the bottom wall 34B of the motor housing 34, the extending portion 36B projects axially more than an electrical connection member 60 described later.

[0069] A high-voltage connector 56 and a communication connector 58 are connected to the extending portion 36B (see FIG. 4). The high-voltage connector 56 supplies power from an external power source 57 to the motor 26. The communication connector 58 transmits a control signal from an external control device 59, which has less power than the external power source 57, to the control circuit 28B of the inverter 28.

[0070] As shown in FIGS. 1, 2, and 4, an electrical connection member 60 that electrically connects the conductive pins 42 and the inverter terminals 54 is disposed outside the housing 30 on the other axial side. A housing case 62 of the electrical connection member 60 described later is fixed to the bottom wall 34B of the motor housing 34 by two second fastening members 61 (see FIG. 14). When attaching this electrical connection member 60, by moving the electrical connection member 60 in the axial direction of the rotating shaft 22, each bus bar first terminal 66 described later and the connection end portion 46 of each conductive pin 42 are connected, and each bus bar second terminal 68 described later and each second female terminal 72 are connected.

[0071] As shown in FIG. 3, the electrical connection member 60 extends in a direction orthogonal to the axial direction of the rotating shaft 22 and is disposed on a virtual straight line VL passing through the rotation axis center O of the rotating shaft 22. Also, in the direction orthogonal to the axial direction of the rotating shaft 22, the high-voltage connector 56 and the communication connector 58 are disposed on both sides sandwiching the electrical connection member 60. That is, the high-voltage connector 56 is disposed on the side opposite to the communication connector 58 with the electrical connection member 60 interposed therebetween.

[0072] As shown in FIG. 14, the electrical connection member 60 has a body portion 60A and a head portion 60B. In a cross-section in a direction orthogonal to the axial direction (front-rear direction), the body portion 60A has a substantially rectangular shape. The head portion 60B has a substantially oval shape that is long in the left-right direction and has a pair of straight portions extending parallel to the left-right direction in a cross-section in the direction orthogonal to the axial direction.

[0073] As also shown in FIGS. 15 and 16, the electrical connection member 60 has a housing case 62 and three bus bars 64.

[0074] As shown in FIG. 6, each bus bar 64 has a bus bar second terminal 68 at one axial end and a bus bar first terminal 66 at the other axial end. The bus bar first terminal 66 is an example of the "first terminal" in the present invention. The bus bar first terminal 66 is constituted by a receptacle terminal. The bus bar second terminal 68 is an example of the "second terminal" in the present invention. The bus bar second terminal 68 is constituted by a male terminal.

[0075] The bus bar second terminal 68 is integrally formed at one axial end portion of the bus bar 64. The bus bar second terminal 68 extends linearly in the axial direction.

[0076] The bus bar first terminal 66 is fixed to the other axial end portion of the bus bar 64. The bus bar first terminal 66 is positioned inside the housing case 62. The bus bar first terminal 66 is fixed inside the housing case 62. That is, as the housing case 62 is moved in the plane direction of the bottom wall 34B of the motor housing 34, the bus bar first terminal 66 also moves in the plane direction of the bottom wall 34B of the motor housing 34. Note that the opening diameter of the opening into which the connection end portion 46 of the conductive pin 42 is introduced in the bus bar first terminal 66 is the same as the diameter of the connection end portion 46 of the conductive pin 42.

[0077] Each bus bar 64 is arranged such that the thickness direction of the bus bar 64 coincides with the direction orthogonal to the axial direction (the direction indicated by the arrow AR in FIG. 6). Each bus bar 64 has a plate shape and is integrally formed by bending a metal plate or the like. Each bus bar 64 has three edgewise bending portions and two flatwise bending portions. Specifically, each bus bar 64 has a first edgewise bending portion, a second edgewise bending portion, a third edgewise bending portion, a first flatwise bending portion, and a second flatwise bending portion in order from one axial end portion toward the other axial end portion.

[0078] Thus, each bus bar 64 is bent edgewise so that the second female terminal 68 of the bus bar is fitted into the second female terminal 72, and is bent flatwise so that the position of the first terminal 66 of the bus bar can be adjusted in the plane direction of the bottom wall 34B of the motor housing 34.

[0079] That is, with respect to the position of the second female terminal 68 provided at one end of the bus bar 64, the first terminal 66 of the bus bar 64 provided at the other end of the bus bar 64 is swingable in a direction orthogonal to the axial direction with the second flatwise bent portion as a base point, that is, in the plane direction of the bottom wall 34B of the motor housing 34. And each bus bar 64 is housed in the housing case 62. For this reason, as the housing case 62 is moved in the plane direction of the bottom wall 34B of the motor housing 34, the first terminal 66 provided at the other end of each bus bar 64 housed in the housing case 62 is configured to be swingable in the plane direction of the bottom wall 34B of the motor housing 34. Thereby, each bus bar 64 can fit the first terminal 66 to the conductive pin 42 while fitting the second female terminal 68 to the second female terminal 72.

[0080] The housing case 62 has a resin base portion 62A, a resin cover portion 62B, a first seal portion 62C, and a second seal portion 62D.

[0081] The base portion 62A and the cover portion 62B have a body portion equivalent portion having a shape corresponding to the body portion 60A of the electrical connection member 60 and a head portion equivalent portion having a shape corresponding to the head portion 60B of the electrical connection member 60 in a cross section in a direction orthogonal to the axial direction.

[0082] The base portion 62A has two first insertion holes 65A, two second insertion holes 65B, three second through holes 65C, and one third insertion hole 65D. Each of the first insertion holes 65A, each of the second insertion holes 65B, and each of the second through holes 65C are formed in the body portion equivalent portion. The third insertion hole 65D is formed in the head portion equivalent portion.

[0083] The part corresponding to the body portion in the base portion 62A is arranged so as to surround the hermetic terminal 38 provided on the bottom wall 34B. That is, the hermetic terminal 38 is housed in the housing case 62, and the hermetic terminal 38 is not exposed to the outside.

[0084] A first fastening member 39 for fixing the hermetic terminal 38 to the bottom wall 34B is inserted through each first insertion hole 65A. A second fastening member 61 for fixing the electrical connection member 60 to the bottom wall 34B is inserted through each second insertion hole 65B. The connection end portions 46 of the respective conductive pins 42 are respectively passed through each second through hole 65C. A portion on the side of the bus bar second terminal 68 of the three bus bars 64 and a part of the housing case 62 are inserted through the third insertion hole 65D.

[0085] The cover portion 62B is integrated with the base portion 62A while sandwiching each bus bar 64 and each bus bar first terminal 66 therebetween. That is, each bus bar 64 and each bus bar first terminal 66 are housed in the housing case 62. The cover portion 62B insulates between the bus bars 64.

[0086] The first seal portion 62C is formed of an annular packing that surrounds the part corresponding to the body portion in the base portion 62A. As shown in FIG. 13, in a state where the electrical connection member 60 is attached to the bottom wall 34B, the end face of the annular first seal portion 62C abuts against the bottom wall 34B, thereby constituting a planar seal portion.

[0087] The second seal portion 62D is disposed at the part corresponding to the head portion in the cover portion 62B. The second seal portion 62D is formed of an annular packing having an outer peripheral surface shape corresponding to the inner peripheral surface shape of the communication hole 48 of the inverter housing 36. As shown in FIG. 13, in a state where the electrical connection member 60 is attached to the bottom wall 34B, the outer peripheral surface of the annular second seal portion 62D abuts against the inner peripheral surface of the communication hole 48, thereby constituting a cylindrical seal portion.

[0088] As shown in FIG. 15, the bus bar second terminal 68 is disposed outside the housing case 62. The bus bar second terminal 68 is inserted into the inverter chamber 36A through the communication hole 48. Then, as shown in FIGS. 7 and 8, the bus bar second terminal 68 is connected to the second female terminal 72 of the relay terminal 70 disposed in the resin case 80 provided in the inverter chamber 36A.

[0089] In this compressor 20, an inverter terminal 54 connected to an inverter circuit 28A provided in an inverter housing 36 and a conductive pin 42 provided in a motor housing 34 and connected to a motor 26 are electrically connected by an electrical connection member 60. This electrical connection member 60 has a bus bar 64. The bus bar 64 is provided with a bus bar first terminal 66 to which the conductive pin 42 is connected outside the motor housing 34 and a bus bar second terminal 68 connected to a relay terminal 70 provided on the inverter terminal 54 inside the inverter housing 36.

[0090] Then, by moving this electrical connection member 60 in the axial direction, the bus bar first terminal 66 of the bus bar 64 can be connected to the conductive pin 42 by fitting, and the bus bar second terminal 68 of the bus bar 64 can be connected to the second female terminal 72 of the relay terminal 70 by fitting.

[0091] The connection of the inverter terminal 54 to the relay terminal 70 and the connection of the bus bar 64 to the relay terminal 70 and the conductive pin 42 can be performed, for example, as follows.

[0092] First, move the inverter terminal 54 axially with respect to the relay terminal 70. As a result, the second inverter terminal 77 of the inverter terminal 54 is axially fitted into the first female terminal 71 of the relay terminal 70, connecting the second inverter terminal 77 and the first female terminal 71. Next, accommodate the inverter terminal 54, the second inverter terminal 77, and the relay terminal 70 in the resin case 80. Next, connect the first inverter terminal 76 of the inverter terminal 54 to the inverter circuit 28A within the inverter chamber 36A. Then, after fixing the motor housing 34 and the inverter housing 36, fix the hermetic terminal 38 to the bottom wall 34B of the motor housing 34. Then, move the electrical connection member 60 axially with respect to the bottom wall 34B of the motor housing 34. That is, move the second busbar terminal 68 of the busbar 64 axially with respect to the relay terminal 70 and move the first busbar terminal 66 of the busbar 64 axially with respect to the hermetic terminal 38. As a result, the second busbar terminal 68 of the busbar 64 is axially fitted into the second female terminal 72 of the relay terminal 70, connecting the second busbar terminal 68 and the second female terminal 72, and the first busbar terminal 66 of the busbar 64 is axially fitted into the conductive pin 42 of the hermetic terminal 38, connecting the first busbar terminal 66 and the conductive pin 42.

[0093] Thus, by the simple operation of moving the electrical connection member 60 axially, the connection between the second female terminal 72 of the relay terminal 70 and the second busbar terminal 68 of the busbar 64 and the connection between the conductive pin 42 and the first busbar terminal 66 of the busbar 64 can be performed simultaneously. As a result, the assembly workability of the compressor 20 can be improved.

[0094] Therefore, according to this compressor 20, it is possible to improve the assembly workability.

[0095] Also, in this compressor 20, since the inverter terminal 54 connected to the inverter circuit 28A and the busbar 64 connected to the conductive pin 42 can be connected via the relay terminal 70, the connection structure for connecting the inverter circuit 28A and the conductive pin 42 can be simplified.

[0096] Furthermore, in this compressor 20, the inverter second terminal 77 of the inverter terminal 54 and the bus bar second terminal 68 of the bus bar 64 can be axially fitted to the first female terminal 71 and the second female terminal 72 of the relay terminal 70. Therefore, it is possible to simplify the shapes of the first female terminal 71 and the second female terminal 72 in the relay terminal 70 and to reduce the size of the relay terminal 70.

[0097] Also, in this compressor 20, at the inverter terminal 54, due to the first bent portion 751 and the second bent portion 752, the second stepped portion 74 where the inverter second terminal 77 is provided is one step lower than the first stepped portion 73, and the inverter second terminal 77 approaches the conductive pin 42 more than the inverter first terminal 76 by the amount of the lowering. That is, the distance between the inverter second terminal 77 and the conductive pin 42 is shortened. Therefore, the bus bar 64 connecting the relay terminal 70 and the conductive pin 42 can also be shortened. As a result, it is possible to reduce the size of the bus bar 64, and thus the size of the housing case 62. Also, it is advantageous in reducing the assembly error and noise of the bus bar 64.

[0098] Furthermore, in this compressor 20, in the resin case 80 that houses the relay terminal 70, a resin case through hole 86 facing the second female terminal 72 of the relay terminal 70 is partitioned by a tapered surface 88. Therefore, by guiding the bus bar second terminal 68 of the bus bar 64 along the tapered surface 88, the bus bar second terminal 68 can be easily inserted into the resin case through hole 86. As a result, the bus bar second terminal 68 can be easily axially fitted to the second female terminal 72.

[0099] Also, in this compressor 20, at the rear end surface 83 of the resin case 80, a recess 87 is provided between adjacent resin case through holes 86. Therefore, the creepage distance between the bus bar second terminals 68 of the bus bar 64 inserted into the adjacent resin case through holes 86 can be increased by the recess 87. As a result, it is advantageous for ensuring the insulation between adjacent bus bar second terminals 68.

[0100] Furthermore, in this compressor 20, a pair of ribs 89 extending in the direction of the resin case through-hole 86 are provided on the first upper surface 84 of the resin case 80. For this reason, the rigidity of the resin case 80 in the direction of the resin case through-hole 86 is improved, and deformation of the resin case 80 can be suppressed. As a result, the bus bar second terminal 68 of the bus bar 64 can be easily inserted into the resin case through-hole 86, and the bus bar second terminal 68 can be easily axially fitted to the second female terminal 72.

[0101] Also, in this compressor 20, the bus bar 64 and the bus bar first terminal 66 connected to the connection end portion 46 of the conductive pin 42 are housed in the housing case 62. Further, the bus bar second terminal 68 is connected to the second female terminal 72 inside the inverter housing 36. That is, the bus bar 64 and the bus bar first terminal 66, which are conductors connecting the conductive pin 42 and the second female terminal 72, are provided outside the housing 30 but are housed in the housing case 62, and these conductors are not exposed outside the housing 30. For this reason, the conductors connecting the conductive pin 42 and the second female terminal 72 are hardly damaged, and protection of the conductors can be achieved.

[0102] Furthermore, in this compressor 20, the bus bar 64 provided with the bus bar first terminal 66 at one end and the bus bar second terminal 68 at the other end is edgewise bent and flatwise bent to be bent into a predetermined shape. For this reason, by moving the electrical connection member 60 in the axial direction of the rotating shaft 22, the bus bar first terminal 66 can be fitted to the connection end portion 46 of the conductive pin 42, and the bus bar second terminal 68 can be fitted to the second female terminal 72.

[0103] Further, in this compressor 20, the motor housing 34 and the inverter housing 36 are arranged side by side in the radial direction of the rotating shaft 22. Therefore, compared with the case where the motor housing 34 and the inverter housing 36 are arranged side by side in the axial direction of the rotating shaft 22, it is possible to suppress an increase in the axial length of the compressor 20. Further, compared with the case where the motor housing 34 and the inverter housing 36 are arranged side by side in the axial direction of the rotating shaft 22, for example, a portion of the bottom wall 34B of the motor housing 34 that overlaps the inverter housing 36 in the axial direction can be reduced, so that a portion where the axial length of the compressor 20 increases can be reduced. Furthermore, compared with the case where the motor housing 34 and the inverter housing 36 are arranged side by side in the axial direction of the rotating shaft 22, for example, the amount by which the inverter housing 36 protrudes in the radial direction from the motor housing 34 toward the rotating shaft 22 can be reduced, so that an increase in the compressor 20 in the radial direction can be suppressed, and the portion where the inverter housing 36 protrudes in the radial direction with respect to the motor housing 34 can be prevented from swinging.

[0104] Furthermore, outside the housing 30 on one side in the axial direction of the rotating shaft 22, an electrical connection member 60 and an airtight terminal 38 are provided on the bottom wall 34B. Therefore, it is not necessary to form a case connection portion for connecting the electrical connection member 60 and a terminal arrangement portion for arranging the airtight terminal 38 on the side surface of the motor housing 34. As a result, in the direction orthogonal to the axial direction of the rotating shaft 22, that is, in the cross-sectional shape of the motor housing 34 in the radial direction of the rotating shaft 22, the number of irregularly shaped portions can be reduced, and it is possible to ensure the airtightness of the motor housing 34 and suppress noise and vibration.

[0105] Also, in the direction orthogonal to the axial direction of the rotating shaft 22, a high-voltage connector 56 and a communication connector 58 are arranged on both sides sandwiching the electrical connection member 60. Therefore, by separating the communication connector 58 from the high-voltage connector 56, it is possible to reduce the noise propagated from the high-voltage connector 56 to the communication connector 58.

[0106] Furthermore, an electrical connection member 60 is disposed below an extension portion 36B of an inverter housing 36 to which a high-voltage connector 56 and a communication connector 58 are connected. Therefore, even if the electrical connection member 60 is disposed outside the housing 30 in one axial direction of the rotating shaft 22, the axial length of the compressor 20 will not be increased thereby. As a result, it can contribute to miniaturization of the axial length of the compressor 20.

[0107] Also, the entire airtight terminal 38 provided on the bottom wall 34B is housed in a housing case 62, and the airtightness inside the housing case 62 with respect to the bottom wall 34B is ensured by a first seal portion 62C. Therefore, the motor chamber 34A can be made airtight with high reliability.

[0108] As described above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the above embodiments, and it goes without saying that the present invention can be appropriately modified and applied without departing from the gist thereof.

[0109] For example, in the compressor 20 of the embodiment, the first female terminal 71 of the relay terminal 70 and the second inverter terminal 77 of the inverter terminal 54 are fitted in the axial direction. However, the present invention is not limited to this. For example, the first female terminal 71 of the relay terminal 70 and the second inverter terminal 77 of the inverter terminal 54 may be fitted in the radial direction.

[0110] In the compressor 20 of the embodiment, a female terminal is provided on the relay terminal 70 side, and male terminals are provided on the inverter terminal 54 and bus bar 64 sides. However, the present invention is not limited to this. For example, a male terminal may be provided on the relay terminal 70 side, and female terminals may be provided on the inverter terminal 54 and bus bar 64 sides.

[0111] In the compressor 20 of the embodiment, the opening diameter of the opening in the bus bar first terminal 66 into which the connection end portion 46 of the conductive pin 42 is introduced is the same as the diameter of the connection end portion 46 of the conductive pin 42, but the present invention is not limited to this. For example, the opening diameter of the opening of the bus bar first terminal 66 may be made larger than the diameter R2 of the connection end portion 46 of the conductive pin 42. In this case, the adjustment of the position of the bus bar first terminal 66 with respect to the conductive pin 42 becomes easier, and the assembly workability of the electric compressor can be further improved.

[0112] In the compressor 20 of the embodiment, the base portion 62A and the cover portion 62B in the housing case 62 are made of resin, but the present invention is not limited to this. For example, the cover portion 62B may be made of metal in order to shield electromagnetic noise or the like.

[0113] The following technical ideas can be extracted from the disclosure of the specification, drawings, and the like.

[0114] (Appendix 1) A rotating shaft, A compression part that is driven by the rotation of the rotating shaft to compress a fluid, A motor that rotates the rotating shaft, An inverter having an inverter circuit that drives the motor, An inverter housing that houses the inverter, A bottomed cylindrical motor housing that defines, together with the inverter housing, an inverter chamber that houses the motor on the inner peripheral surface side and the inverter on the outer peripheral surface side, A bottomed cylindrical compression part housing that houses the compression part, A shaft support member that is provided between the motor housing and the compression part housing, defines, together with the motor housing, a motor chamber that houses the motor, defines, together with the compression part housing, a compression part chamber that houses the compression part, and has an insertion hole through which the rotating shaft is inserted to rotatably support the rotating shaft, A conductive pin that is inserted into a first through hole formed in the bottom wall of the motor housing, is held with respect to the first through hole, and is electrically connected to the motor, A plate-shaped inverter terminal provided inside the inverter housing and electrically connected to a substrate on which a pattern of the inverter circuit is formed, and an electrical connection member that electrically connects the conductive pin and the inverter terminal, The electrical connection member includes a plate-shaped bus bar, a first terminal provided at one end of the bus bar and connected to the conductive pin outside the motor housing, a second terminal provided at the other end of the bus bar and inserted into the inverter housing, a housing case that houses the bus bar so that the second terminal is exposed and has a second through hole into which the conductive pin can be inserted toward the first terminal, and is fixed to the bottom wall of the motor housing. A relay terminal for connecting the inverter terminal and the second terminal inside the inverter housing is provided on the inverter terminal. An electric compressor characterized in that by moving the electrical connection member in the axial direction of the rotating shaft, the first terminal and the conductive pin are fitted together, and the second terminal and the relay terminal are fitted together.

[0115] (Appendix 2) The inverter terminal includes an inverter first terminal provided at one end of the inverter terminal and connected to the pattern, an inverter second terminal provided at the other end of the inverter terminal and connected to the relay terminal, and an extension portion provided between the inverter first terminal and the inverter second terminal and extending so that the inverter second terminal is separated from the substrate. The electric compressor according to Appendix 1, wherein the extension portion has a bent portion that bends so that the inverter second terminal approaches the conductive pin more than the inverter first terminal.

[0116] (Appendix 3) The inverter terminal is housed in a resin case made of resin together with the relay terminal so that the inverter first terminal is exposed. The resin case has a resin case through hole into which the second terminal can be inserted toward the relay terminal. The electric compressor according to Supplementary Note 2, wherein the resin case through-hole is defined by a tapered surface that gradually reduces the opening area in the insertion direction of the second terminal.

[0117] (Supplementary Note 4) The electric compressor according to Supplementary Note 3, wherein the resin case is provided with a recess that increases the creepage distance between adjacent second terminals between adjacent resin case through-holes.

[0118] (Supplementary Note 5) The electric compressor according to Supplementary Note 3 or 4, wherein the resin case is provided with a rib that extends in the axial direction from the relay terminal housing portion that houses the relay terminal to the bent portion housing portion that houses the bent portion, and the thickness gradually increases from the relay terminal housing portion toward the bent portion housing portion.

Industrial Applicability

[0119] The present invention can be used in air conditioning devices for vehicles and the like.

Explanation of Signs

[0120] 20…Electric compressor 22…Rotating shaft 24…Compression part 26…Motor 28…Inverter 28A…Inverter circuit 32…Compression part housing 32A…Compression part chamber 34…Motor housing 34A…Motor chamber 34B…Bottom wall 34C…First through-hole 36…Inverter housing 36A…Inverter chamber 37…Shaft support member 37A…Insertion hole 42…Conductive pin 54…Inverter terminal 60…Electrical connection member 62…Housing case 64…Bus bar 65C…Second through-hole 66… Bus bar first terminal (first terminal) 68… Bus bar second terminal (second terminal) 70… Relay terminal 76… Inverter first terminal 77… Inverter second terminal 79… Extension part 80… Resin case 81… Relay terminal housing part 86… Resin case through hole 87… Recessed part 88… Tapered surface 89… Rib 95… Bending part housing part 280… Substrate 751… First bending part (bending part) 752… Second bending part (bending part)

Claims

1. A rotating shaft, a compression part that is driven by the rotation of the rotating shaft to compress a fluid, a motor that rotates the rotating shaft, an inverter having an inverter circuit that drives the motor, an inverter housing that houses the inverter, a bottomed cylindrical motor housing that, together with the inverter housing, defines an inverter chamber that houses the motor on the inner peripheral surface side and the inverter on the outer peripheral surface side, a bottomed cylindrical compression part housing that houses the compression part, a shaft support member that is provided between the motor housing and the compression part housing, defines a motor chamber that houses the motor together with the motor housing, defines a compression part chamber that houses the compression part together with the compression part housing, and has an insertion hole through which the rotating shaft is inserted to rotatably support the rotating shaft, a conductive pin that is inserted into a first through hole formed in the bottom wall of the motor housing and held with respect to the first through hole and is electrically connected to the motor, a plate-shaped inverter terminal that is provided inside the inverter housing and is electrically connected to a substrate on which a pattern of the inverter circuit is formed, and an electrical connection member that electrically connects the conductive pin and the inverter terminal, wherein the electrical connection member includes a plate-shaped bus bar, a first terminal provided at one end of the bus bar to which the conductive pin is connected outside the motor housing, a second terminal provided at the other end of the bus bar and inserted into the inverter housing, and a housing case that houses the bus bar so that the second terminal is exposed and has a second through hole into which the conductive pin can be inserted toward the first terminal and is fixed to the bottom wall of the motor housing, a relay terminal that connects the inverter terminal and the second terminal inside the inverter housing is provided on the inverter terminal, and an electric compressor characterized in that by moving the electrical connection member in the axial direction of the rotating shaft, the first terminal and the conductive pin are fitted together, and the second terminal and the relay terminal are fitted together.

2. The inverter terminal includes an inverter first terminal provided at one end of the inverter terminal and connected to the pattern, an inverter second terminal provided at the other end of the inverter terminal and connected to the relay terminal, and an extension portion provided between the inverter first terminal and the inverter second terminal and extending such that the inverter second terminal is away from the substrate. The electric compressor according to claim 1, wherein the extension portion has a bent portion that bends such that the inverter second terminal approaches the conductive pin more than the inverter first terminal.

3. The inverter terminal is housed in a resin case made of resin together with the relay terminal such that the inverter first terminal is exposed. The resin case has a resin case through-hole into which the second terminal can be inserted toward the relay terminal. The electric compressor according to claim 2, wherein the resin case through-hole is defined by a tapered surface that gradually reduces the opening area in the insertion direction of the second terminal.

4. The electric compressor according to claim 3, wherein the resin case is provided with a recess that increases the creepage distance between adjacent second terminals between adjacent resin case through-holes.

5. The electric compressor according to claim 4, wherein the resin case is provided with a rib that extends in the axial direction from a relay terminal housing portion that houses the relay terminal to a bent portion housing portion that houses the bent portion, and the thickness gradually increases from the relay terminal housing portion toward the bent portion housing portion.

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