JP2020070739A - Motor compressor - Google Patents

Abstract

To improve the workability of assembling an external connector part to an electric motor driving circuit while improving earthquake resistance.SOLUTION: A fastening bolt 71 inserted through each bolt insertion hole 70h of a metal plate 70 is threaded to a female screw hole 33 to fasten the metal plate 70 in the state of contacting a connector installation surface 31. Thus, a connector member 40 is fastened to a connector installation part 30. On a resin part 60 of the connector member 40, a connector connection part 61 is integrally formed and a bus bar is held. As a result, there is no need for a separate step of firstly fixing the bus bar to the connector installation part and then fixing the connector connection part to the connector installation part as in a conventional technique. Compared to the case that each of the bus bar and the connector connection part is separately fixed to the connector installation part, as in the conventional technique, the earth resistance of each component is improved.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electric compressor.

  The electric compressor includes a compressor that compresses fluid by rotation of a rotating shaft, an electric motor that rotates the rotating shaft, a drive circuit that includes a circuit board that drives the electric motor, a rotating shaft, a compressor, an electric motor, and And a housing for accommodating the drive circuit. The circuit board is housed in a housing chamber formed in the housing. The compression unit, the electric motor, and the drive circuit are arranged side by side in the axial direction of the rotary shaft so that the drive circuit is located at one end of the rotary shaft in the axial direction. Further, the electric compressor includes a tubular connector connecting portion to which an external connector is connected, and a bus bar having one end electrically connected to the external connector and the other end electrically connected to the circuit board. ing.

  As shown in FIG. 7, for example, in the electric compressor 100 of Patent Document 1, the connector installation portion 102 is formed on the outer peripheral surface of the housing 101. The connector connecting portion 103 is located on the outer side of the housing 101 in the radial direction of the rotating shaft 100a, and the opening 103a of the connector connecting portion 103 is on the side opposite to the compressing portion 104 and the electric motor 105 in the axial direction of the rotating shaft 100a. It is fixed to the connector installation portion 102 so as to face. The bus bar 107 that electrically connects the circuit board 106 a of the drive circuit 106 and the external connector is fixed to the connector installation portion 102.

JP2012-47139A

  However, in the electric compressor 100 of Patent Document 1, first, the bus bar 107 needs to be fixed to the connector installation portion 102, and then the connector connection portion 103 needs to be fixed to the connector installation portion 102. bad. Further, since the bus bar 107 and the connector connecting portion 103 are separately fixed to the connector installing portion 102, the seismic resistance of each component is poor.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric compressor capable of improving the workability of assembling and improving the earthquake resistance.

  An electric compressor that solves the above problems is a compressor that compresses fluid by rotation of a rotating shaft, an electric motor that rotates the rotating shaft, a drive circuit that includes a circuit board that drives the electric motor, and the circuit board. A housing having an accommodating chamber for accommodating an external connector, a cylindrical connector connecting portion to which an external connector is connected, one end electrically connected to the external connector, and the other end electrically connected to the circuit board. A bus bar, and the compression unit, the electric motor, and the drive circuit are arranged side by side in the axial direction of the rotary shaft so that the drive circuit is located at one end in the axial direction of the rotary shaft. The connector connecting portion is located radially outward of the rotary shaft with respect to the housing, and the opening of the connector connecting portion is the compression portion in the axial direction of the rotary shaft. And a resin portion that faces the opening opposite to the electric motor, in which the connector connecting portion is integrally formed, and the busbar is held with one end of the busbar facing the opening. A connector member having an outer surface of the resin portion and a metal plate integrated with the outer surface of the resin portion. The housing communicates the inside and the outside of the storage chamber with the compression portion and the electric motor in the axial direction of the rotating shaft. A through hole that opens toward the motor is formed, a female screw hole is formed around the through hole in the housing, and a bolt insertion hole through which a fastening bolt is inserted is formed in the metal plate. In the connector member, the other end portion of the bus bar is inserted into the through hole, and the fastening bolt inserted into the bolt insertion hole is screwed into the female screw hole. Is fastened to the housing, the other end of the bus bar is connected to the circuit board through the through hole.

  According to this, the connector member having the resin portion that holds one end of the bus bar facing the opening of the connector connecting portion only by screwing the fastening bolt inserted into the bolt insertion hole of the metal plate into the female screw hole. Can be fastened to the housing. Then, the other end of the bus bar can be connected to the circuit board through the through hole. Since the connector portion is integrally formed in the resin portion of the connector member and the bus bar is held, the bus bar is first fixed to the housing and then the connector connection portion is attached to the housing as in the conventional technique. There is no need for a separate process such as fixing. Therefore, the assembling workability is improved. Further, since the connector portion is integrally formed in the resin portion of the connector member and the bus bar is held, when the bus bar and the connector connecting portion are separately fixed to the housing as in the conventional technique, Compared with each other, the seismic resistance of each part is improved. From the above, the workability of assembling can be improved and the earthquake resistance can be improved.

  In the electric compressor, the housing includes a motor housing that accommodates the compression unit and the electric motor, and an inverter case that is attached to the motor housing and has the accommodation chamber, and the through hole includes the inverter. It may be formed on the case.

  According to this, the connector member can be fastened to the housing in a state where the inverter case in which the circuit board is housed in the housing chamber is removed from the motor housing, so that the assembling workability can be further improved.

  According to the present invention, it is possible to improve the workability of assembling and improve the earthquake resistance.

The side sectional view showing the electric compressor in an embodiment. Sectional drawing which expands and shows a part of electric compressor. The perspective view of a connector member. The front view of a connector member. The front view which shows a part of case main body. The disassembled perspective view of a connector member and a case main body. Sectional drawing which shows the electric compressor in a prior art example.

Hereinafter, an embodiment in which an electric compressor is embodied will be described with reference to FIGS. The electric compressor of this embodiment is used, for example, in a vehicle air conditioner.
As shown in FIG. 1, a housing 11 of the electric compressor 10 has a bottomed cylindrical motor housing 12, a bottomed cylindrical discharge housing 13, and a flat box-shaped inverter case 14. .. Therefore, the housing 11 includes the motor housing 12 and the inverter case 14. The motor housing 12, the discharge housing 13, and the inverter case 14 are made of a metal material, for example, aluminum.

  The motor housing 12 has a bottom wall 12a and a peripheral wall 12b extending in a tubular shape from the outer peripheral edge of the bottom wall 12a. The discharge housing 13 is connected to the peripheral wall 12b of the motor housing 12 on the opposite side of the bottom wall 12a. The discharge housing 13 closes the opening of the motor housing 12 on the side opposite to the bottom wall 12a. The inverter case 14 is attached to the outer surface of the bottom wall 12a of the motor housing 12 by a bolt (not shown).

  In the motor housing 12, a rotary shaft 15, a compression unit 16 that compresses a refrigerant that is a fluid by the rotation of the rotary shaft 15, and an electric motor 17 that rotates the rotary shaft 15 to drive the compression unit 16 are housed. Has been done. The rotating shaft 15 is rotatably supported by the motor housing 12. The compression unit 16 is, for example, a scroll type configured by a fixed scroll (not shown) fixed in the motor housing 12, and a movable scroll (not shown) that is arranged to face the fixed scroll. The compression unit 16 is not limited to the scroll type and may be, for example, a piston type or a vane type.

  The electric motor 17 includes a rotor 17a that is fixed to the rotating shaft 15 and rotates integrally with the rotating shaft 15, and a stator 17b that is fixed to the inner peripheral surface of the peripheral wall 12b of the motor housing 12 and surrounds the rotor 17a. ing. A coil 18 is wound around the teeth of the stator 17b. When the coil 18 is supplied with electric power, the rotor 17a and the rotary shaft 15 rotate.

  A suction port 12h is formed on the peripheral wall 12b of the motor housing 12. Further, the discharge housing 13 is formed with a discharge port 13h. One end of the external refrigerant circuit 19 is connected to the suction port 12h. The other end of the external refrigerant circuit 19 is connected to the discharge port 13h. Then, the refrigerant is sucked into the motor housing 12 from the external refrigerant circuit 19 through the suction port 12h, and the refrigerant sucked into the motor housing 12 is compressed by the compression section 16. The refrigerant compressed by the compression unit 16 is discharged into the discharge housing 13 and is discharged to the external refrigerant circuit 19 through the discharge port 13h, passes through the heat exchanger and the expansion valve of the external refrigerant circuit 19, and is sucked into the suction port 12h. Is returned to the inside of the motor housing 12 via. The electric compressor 10 and the external refrigerant circuit 19 form a vehicle air conditioner 20.

  The inverter case 14 has a bottomed tubular case body 21 and a bottomed tubular cover 22. The case main body 21 has a bottom wall 21a and a peripheral wall 21b extending in a tubular shape from the outer peripheral edge of the bottom wall 21a. The case body 21 is attached to the motor housing 12 in a state where the outer surface of the bottom wall 21a of the case body 21 is in contact with the outer surface of the bottom wall 12a of the motor housing 12.

  The cover 22 has a bottom wall 22a and a peripheral wall 22b extending in a tubular shape from the outer peripheral edge of the bottom wall 22a. The peripheral wall 22b of the cover 22 extends along the peripheral wall 21b of the case body 21. The cover 22 has a gasket 23 interposed between an end of the peripheral wall 22b of the cover 22 opposite to the bottom wall 22a and an end of the peripheral wall 21b of the case body 21 opposite to the bottom wall 21a. In this state, it is attached to the case body 21. As a result, the opening of the peripheral wall 21b of the case body 21 on the opposite side of the bottom wall 21a is closed by the cover 22. The housing chamber 24 is defined by the case body 21 and the cover 22. Therefore, the inverter case 14 has the accommodation chamber 24.

  The gasket 23 has a ring shape extending along an end of the peripheral wall 21b of the case body 21 opposite to the bottom wall 21a and an end of the peripheral wall 22b of the cover 22 opposite to the bottom wall 22a. The gasket 23 seals between the end of the peripheral wall 21b of the case body 21 opposite to the bottom wall 21a and the end of the peripheral wall 22b of the cover 22 opposite to the bottom wall 22a. Therefore, the gasket 23 seals between the housing chamber 24 and the outside of the inverter case 14.

  A drive circuit 26 having a circuit board 25 for driving the electric motor 17 is housed in the housing chamber 24. Therefore, the accommodation chamber 24 accommodates the circuit board 25. Therefore, the housing 11 has a housing chamber 24 that houses the circuit board 25. The compression unit 16, the electric motor 17, and the drive circuit 26 are arranged side by side in this order in the axial direction of the rotary shaft 15. The drive circuit 26 is located at one end of the rotary shaft 15 in the axial direction with respect to the compression unit 16 and the electric motor 17.

  A conductive member insertion hole 21c is formed in the bottom wall 21a of the case body 21. A conductive member insertion hole 12c communicating with the conductive member insertion hole 21c of the case body 21 is formed in the bottom wall 12a of the motor housing 12. Further, the bottom wall 21 a of the case body 21 is provided with a conductive member 27 for electrically connecting the electric motor 17 and the drive circuit 26. The conductive member 27 is supported on the inner surface of the bottom wall 21 a of the case body 21 via the support plate 28.

  The conductive member 27 passes through the conductive member insertion hole 21c of the case body 21 and the conductive member insertion hole 12c of the motor housing 12 and projects from the housing chamber 24 into the motor housing 12. The conductive member 27 is electrically connected to the motor wiring 17c drawn out from the electric motor 17 via the cluster block 29 arranged in the motor housing 12.

  The electric compressor 10 includes a connector installation portion 30 provided in the inverter case 14 and a connector member 40 fixed to the connector installation portion 30. Therefore, the housing 11 includes the connector installation section 30. The connector installation portion 30 is a part of the outer peripheral portion of the case body 21. The connector installation part 30 has a connector installation surface 31 facing the compression part 16 and the electric motor 17 side in the axial direction of the rotating shaft 15.

  As shown in FIG. 2, the connector installation surface 31 is located closer to the cover 22 than the portion of the outer surface of the bottom wall 21a of the case body 21 that contacts the outer surface of the bottom wall 12a of the motor housing 12. The connector installation surface 31 is a flat surface extending in the radial direction of the rotating shaft 15. A through hole 32 is formed in the connector installation portion 30. Therefore, the through hole 32 is formed in the inverter case 14. One end of the through hole 32 communicates with the accommodation chamber 24. The other end of the through hole 32 is open to the connector installation surface 31. Therefore, the through hole 32 communicates with the inside and outside of the accommodation chamber 24 and opens toward the compression portion 16 and the electric motor 17 in the axial direction of the rotating shaft 15. A part of the circuit board 25 faces the through hole 32.

  The connector member 40 has a bus bar 50, a resin portion 60, and a metal plate 70. The resin portion 60 is integrally formed with a bottomed tubular connector connecting portion 61 to which the external connector CN is connected. The connector connecting portion 61 has a bottom wall 61a and a peripheral wall 61b extending in a tubular shape from the outer peripheral edge of the bottom wall 61a. Further, the resin portion 60 has an extending portion 62 which is continuous with the bottom wall 61 a of the connector connecting portion 61 on the opposite side of the peripheral wall 61 b and extends in a direction orthogonal to the axial direction of the connector connecting portion 61. .. Further, the resin portion 60 has an insertion portion 63 that is inserted into the through hole 32 of the connector installation portion 30. The insertion portion 63 projects from the outer surface 62a of the extension portion 62 that is continuous with the connector connection portion 61. The connector connecting portion 61 and the inserting portion 63 extend parallel to each other. The resin portion 60 including the connector connecting portion 61, the extending portion 62, and the inserting portion 63 is U-shaped as a whole.

  An annular seal member 64 is attached to the outer peripheral surface of the insertion portion 63. The seal member 64 seals between the outer peripheral surface of the insertion portion 63 and the inner peripheral surface of the through hole 32. Therefore, the seal member 64 seals between the housing chamber 24 and the outside of the inverter case 14. The seal member 64 is, for example, a grommet.

  The resin portion 60 holds the three bus bars 50. Each bus bar 50 is resin-molded on the resin portion 60. Each bus bar 50 has a first extending portion 51 extending along the connector connecting portion 61, a second extending portion 52 extending along the extending portion 62 of the resin portion 60, and a third extending portion extending along the insertion portion 63. And an extending portion 53. The first extending portion 51 and the second extending portion 52 are continuous, and the second extending portion 52 and the third extending portion 53 are continuous. Therefore, each bus bar 50 is U-shaped as a whole.

  Portions of the first extending portion 51 other than the end portion on the side opposite to the second extending portion 52 are embedded inside the bottom wall 61 a of the connector connecting portion 61 and inside the extending portion 62. The end of the first extending portion 51 opposite to the second extending portion 52 is located inside the peripheral wall 61b of the connector connecting portion 61, protruding from the bottom wall 61a.

  The second extending portion 52 is embedded inside the extending portion 62 of the resin portion 60. A portion of the third extending portion 53 other than the end portion on the opposite side of the second extending portion 52 is embedded inside the insertion portion 63. The end of the third extending portion 53 opposite to the second extending portion 52 projects from the end surface 63a of the inserting portion 63 opposite to the extending portion 62. An end surface 63 a of the insertion portion 63 on the side opposite to the extending portion 62 is an end surface of the insertion portion 63 located in the insertion direction of the through hole 32.

  The first extending portion 51 is one end of the bus bar 50. Therefore, the resin portion 60 holds the bus bar 50 with one end of the bus bar 50 facing the opening 61e of the connector connecting portion 61. The third extending portion 53 is the other end of the bus bar 50. Therefore, the other end of the bus bar 50 projects from the end surface of the insertion portion 63 located in the insertion direction of the through hole 32. Then, one end of the bus bar 50 is electrically connected to the external connector CN. The other end of the bus bar 50 is electrically connected to the circuit board 25.

  As shown in FIGS. 3 and 4, the metal plate 70 is integrated with the outer surface 62 a of the extending portion 62. Therefore, the metal plate 70 is integrated with the outer surface 62a of the resin portion 60. The metal plate 70 is integrated with the outer surface 62 a of the resin portion 60 by being resin-molded on the resin portion 60.

  The metal plate 70 has a flat plate shape. The metal plate 70 has a hole 70a through which the insertion portion 63 of the resin portion 60 passes. Further, the metal plate 70 has two protruding portions 70f which are portions protruding from the outer surface 62a of the extending portion 62 when the metal plate 70 is viewed in a plan view. The two protruding portions 70f are arranged on portions of the metal plate 70 located on both sides of the hole 70a.

  Bolt insertion holes 70h into which the fastening bolts 71 are inserted are formed in the respective protruding portions 70f. Therefore, two bolt insertion holes 70h through which the fastening bolts 71 are inserted are formed in the metal plate 70. The two bolt insertion holes 70h are respectively formed in portions of the metal plate 70 located on both sides of the hole 70a. Each bolt insertion hole 70h has a circular hole shape, and penetrates each protruding portion 70f in the thickness direction of the metal plate 70.

  As shown in FIGS. 5 and 6, two female screw holes 33 are formed around the through hole 32 on the connector installation surface 31. The respective fastening bolts 71 inserted into the respective bolt insertion holes 70h are screwed into the respective female screw holes 33.

  As shown in FIG. 6, in the connector member 40, the insertion portion 63 is inserted into the through hole 32, and each fastening bolt 71 inserted into each bolt insertion hole 70h is screwed into each female screw hole 33 so that the metal plate 70 is inserted. Are fastened to the connector installation portion 30 by being fastened in contact with the connector installation surface 31. Then, as shown in FIG. 2, the other end of the bus bar 50 passes through the through hole 32 and is connected to a portion of the circuit board 25 facing the through hole 32. In a state where the connector member 40 is fixed to the connector installation portion 30, the connector connecting portion 61 is located radially outside of the rotating shaft 15 with respect to the inverter case 14, and the opening 61 e of the connector connecting portion 61 has an opening 61 e. It faces the side opposite to the compression unit 16 and the electric motor 17 in the axis direction of.

Next, the operation of this embodiment will be described.
The connector portion 61 of the connector member 40 is integrally formed with the connector connection portion 61 and holds the bus bar 50. Therefore, for example, the bus bar 50 and the connector connection portion 61 are separately fixed to the connector installation portion 30. Seismic resistance of each part is improved compared with the case where it is present.

In the above embodiment, the following effects can be obtained.
(1) With each fastening bolt 71 inserted in each bolt insertion hole 70h of the metal plate 70 screwed into each female screw hole 33, one end of the bus bar 50 faces the opening 61e of the connector connection portion 61. The connector member 40 having the resin portion 60 to be held can be fastened to the connector installation portion 30. Then, the other end of the bus bar 50 can be connected to the circuit board 25 through the through hole 32. The resin connecting portion 61 of the connector member 40 is integrally formed with the connector connecting portion 61 and holds the bus bar 50. Therefore, as in the prior art, first, the bus bar 50 is fixed to the connector installing portion 30, and then the bus bar 50 is fixed. A separate step of fixing the connector connecting portion 61 to the connector setting portion 30 is unnecessary. Therefore, the assembling workability is improved. Further, since the connector portion 61 is integrally formed in the resin portion 60 of the connector member 40 and the bus bar 50 is held, the bus bar 50 and the connector connecting portion 61 are separately installed as in the prior art. Compared to the case where the parts are fixed to the part 30, the earthquake resistance of each part is improved. From the above, the workability of assembling can be improved and the earthquake resistance can be improved.

  (2) The through hole 32 is provided in the inverter case 14. According to this, the connector member 40 can be fixed to the connector installation portion 30 in a state in which the inverter case 14 in which the circuit board 25 is accommodated in the accommodation chamber 24 is removed from the motor housing 12, so that the assembling workability is further improved. Can be improved.

  (3) The electric compressor 10 includes the inverter case 14 having the housing chamber 24 that houses the circuit board 25. The inverter case 14 is attached to the bottom wall 12a of the motor housing 12. According to this, for example, when replacing the circuit board 25, the inverter case 14 is removed from the motor housing 12, and then the circuit board 25 housed in the housing chamber 24 of the inverter case 14 is replaced. Therefore, the workability of replacing the circuit board 25 can be improved.

  (4) The connector connecting portion 61 is located radially outward of the rotating shaft 15 with respect to the inverter case 14, and the opening 61e of the connector connecting portion 61 is connected to the compressing portion 16 and the electric motor 17 in the axial direction of the rotating shaft 15. Is facing the other side. Therefore, the opening 61e of the connector connecting portion 61 projects from the bottom wall 22a of the cover 22 of the inverter case 14, for example, the connector connecting portion facing the side opposite to the compression portion 16 and the electric motor 17 in the axial direction of the rotating shaft 15. Compared with the case where it is performed, the physique in the axial direction of the rotary shaft 15 in the electric compressor 10 can be downsized.

  The above-described embodiment can be modified and implemented as follows. The above-described embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

  In the embodiment, the electric compressor 10 may be configured without the inverter case 14, and for example, a cover is attached to the outer surface of the bottom wall 12a of the motor housing 12, and the bottom wall 12a of the motor housing 12 is covered. The configuration may be such that the housing chamber 24 in which the circuit board 25 is housed is defined by the outer surface and the cover. In this case, a part of the outer peripheral portion of the bottom wall 12a of the motor housing 12 protrudes from the outer peripheral surface of the peripheral wall 12b of the motor housing 12, and the portion of the bottom wall 12a protruding from the peripheral wall 12b serves as the connector installation portion. .. Further, the connector installation portion is formed with a through hole 32 that communicates the inside and outside of the housing chamber 24 and that opens toward the compression portion 16 and the electric motor 17 in the axial direction of the rotating shaft 15.

  In the embodiment, the bus bar 50 does not have to be U-shaped as a whole, and may be L-shaped as a whole, for example. In this case, the bus bar 50 is held by the resin portion 60, for example, with one end of the bus bar 50 extending in the radial direction of the rotating shaft 15 and one end of the bus bar 50 facing the opening 61e of the connector connecting portion 61. It should have been done.

  In the embodiment, the number of bolt insertion holes 70h formed in the metal plate 70 is not particularly limited, and may be one or three or more, for example. Then, the number of female screw holes 33 formed in the connector installation surface 31 may be appropriately changed according to the number of bolt insertion holes 70h.

In the embodiment, the position of the bolt insertion hole 70h formed in the metal plate 70 is not particularly limited.
In the embodiment, each bolt insertion hole 70h may be, for example, a square hole shape, and the shape of each bolt insertion hole 70h is not particularly limited as long as each fastening bolt 71 can be inserted. Absent.

○ In the embodiment, the number of bus bars 50 is not particularly limited.
In the embodiment, in the electric compressor 10, the electric motor 17, the compression unit 16, and the drive circuit 26 are arranged in this order in the axial direction of the rotating shaft 15, and the electric motor 17, the compression unit 16, and the drive circuit 26 are respectively arranged. May be arranged.

  In the embodiment, the electric compressor 10 constitutes the vehicle air conditioner 20, but the invention is not limited to this. For example, the electric compressor 10 is mounted in a fuel cell vehicle and is supplied to the fuel cell. The air as a fluid may be compressed by the compression unit 16.

  DESCRIPTION OF SYMBOLS 10 ... Electric compressor, 11 ... Housing, 12 ... Motor housing, 14 ... Inverter case, 15 ... Rotating shaft, 16 ... Compression part, 17 ... Electric motor, 24 ... Storage chamber, 25 ... Circuit board, 26 ... Drive circuit, 32 ... Through hole, 33 ... Female screw hole, 40 ... Connector member, 50 ... Bus bar, 60 ... Resin part, 61 ... Connector connection part, 61e ... Opening part, 62a ... Outer surface, 70 ... Metal plate, 70h ... Bolt insertion hole, 71 ... Fastening bolt, CN ... External connector.

Claims (2)

A compression unit that compresses the fluid by rotation of the rotating shaft,
An electric motor for rotating the rotating shaft,
A drive circuit having a circuit board for driving the electric motor;
A housing having an accommodation chamber for accommodating the circuit board;
A cylindrical connector connection part to which an external connector is connected,
A bus bar having one end electrically connected to the external connector and the other end electrically connected to the circuit board;
The compression unit, the electric motor, and the drive circuit are arranged side by side in the axial direction of the rotary shaft so that the drive circuit is located at one end of the rotary shaft in the axial direction. An electric compressor that is located radially outward of the rotary shaft with respect to the housing and has an opening of the connector connecting portion that faces away from the compressor and the electric motor in the axial direction of the rotary shaft. There
A resin portion that holds the bus bar in a state in which the connector connecting portion is integrally formed and one end of the bus bar faces the opening;
A metal plate integrated with the outer surface of the resin portion, and a connector member having
In the housing, a through hole that communicates with the inside and outside of the storage chamber and that opens toward the compression unit and the electric motor in the axial direction of the rotation shaft is formed.
A female screw hole is formed around the through hole in the housing,
The metal plate has a bolt insertion hole through which a fastening bolt is inserted,
In the connector member, the other end of the bus bar is inserted into the through hole, and the fastening bolt inserted into the bolt insertion hole is screwed into the female screw hole to be fastened to the housing. An electric compressor having an end connected to the circuit board through the through hole. The housing is
A motor housing that houses the compression unit and the electric motor;
An inverter case attached to the motor housing and having the accommodation chamber;
The electric compressor according to claim 1, wherein the through hole is formed in the inverter case.