JP2019152193A - Motor compressor - Google Patents

Abstract

To provide a motor compressor capable of restricting the movement of a cluster block when a conductive member is inserted into a conductive member insertion hole, while suppressing an increase in the axial size of a rotary shaft.SOLUTION: A claw part 56 which a cluster block 52 includes is mounted on an insulator side flange part 35 which a second insulator 32 includes, and thus the second insulator 32 and the cluster block 52 are connected to each other in a relatively movable manner. A front end face 35c of the insulator side flange part 35 of the second insulator 32 restricts the movement of the cluster block 52 relative to the second insulator 32 in the direction of inserting the conductive member into the conductive member insertion hole. The cluster block 52 is opposed to an inner peripheral face 35a of the insulator side flange part 35 of the second insulator 32 in the radial direction of the rotary shaft.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electric compressor.

  For example, an electric compressor disclosed in Patent Document 1 includes a rotation shaft, an electric motor that rotates the rotation shaft, a compression unit that is driven by the rotation of the rotation shaft to compress refrigerant, and a motor that drives the electric motor. A drive circuit and a conductive member electrically connected to the motor drive circuit are provided. A stator of an electric motor includes an annular stator core, an annular insulator disposed on an end surface of the stator core in the axial direction of the rotating shaft, and a coil wound around the stator core and the insulator. In addition, the electric compressor has an insulating cluster block in which a conductive member insertion hole into which the conductive member is inserted is formed and the motor wiring drawn out from the electric motor and the conductive member are electrically connected inside. It has.

  The cluster block is disposed adjacent to the coil in the axial direction of the rotation axis. The cluster block has a fitting hole, and the insulator has an extension. The cluster block is attached to the insulator by fitting the extending portion of the insulator into the fitting hole of the cluster block.

Japanese Patent Laying-Open No. 2015-183668

  In the electric compressor of Patent Document 1, since the cluster block is arranged adjacent to the coil in the axial direction of the rotating shaft, most of the cluster block is opposite to the stator core in the insulator in the axial direction of the rotating shaft. It protrudes from the edge part of the side, and this protruding part contributes to the enlargement of the electric compressor in the axial direction of the rotating shaft.

  In general, in an electric compressor, when a conductive member is inserted into a conductive member insertion hole while the cluster block is attached to an insulator, the cluster block moves in a direction to insert the conductive member into the conductive member insertion hole. To do. For this reason, it may be difficult to insert the conductive member into the conductive member insertion hole. In addition, the cluster block may be detached from the insulator.

  The present invention has been made in order to solve the above-described problem, and an object of the present invention is to provide a cluster block when the conductive member is inserted into the conductive member insertion hole while suppressing an increase in the size of the rotating shaft in the axial direction. An object of the present invention is to provide an electric compressor that can regulate the movement of the compressor.

  An electric compressor for solving the above problems includes a rotation shaft, an electric motor that rotates the rotation shaft, a compression unit that is driven by the rotation of the rotation shaft to compress refrigerant, and the electric motor. A motor driving circuit to be driven; a conductive member electrically connected to the motor driving circuit; a conductive member insertion hole into which the conductive member is inserted; and a motor wiring drawn from the electric motor; An insulating cluster block electrically connected to a conductive member, and the electric motor includes a rotor that can rotate integrally with the rotating shaft, and a stator, and the stator has an annular shape. Electric compression comprising a stator core, an annular insulator disposed on an end face of the stator core, and a coil wound around the stator core and the insulator The cluster block and the insulator each have an engaging portion that couples the two together so as to be relatively movable, and the insulator is in the direction in which the conductive member is inserted into the conductive member insertion hole with respect to the insulator. It has a restricting part for restricting movement of the cluster block, and the cluster block is opposed to the rotor-side peripheral surface of the insulator in the radial direction of the rotating shaft.

  According to this, the cluster block is opposed to the rotor-side peripheral surface of the insulator in the radial direction of the rotating shaft. For this reason, compared with the case where the cluster block is arranged adjacent to the coil in the axial direction of the rotating shaft as in the prior art, the insulator protrudes from the end of the insulator on the side opposite to the stator core in the axial direction of the rotating shaft. Part is reduced. As a result, the increase in size of the electric compressor in the axial direction of the rotating shaft can be suppressed.

  Also, when the conductive member is inserted into the conductive member insertion hole in a state where the cluster block and the insulator are connected, the cluster block attempts to move in the direction of inserting the conductive member into the conductive member insertion hole. And At this time, the movement of the cluster block in the direction in which the conductive member is inserted into the conductive member insertion hole is restricted by the restriction portion. As a result, it becomes easy to insert the conductive member into the conductive member insertion hole. From the above, it is possible to restrict the movement of the cluster block when the conductive member is inserted into the conductive member insertion hole while suppressing an increase in the size of the rotating shaft in the axial direction.

Moreover, about the said electric compressor, it is preferable that the said control part is provided in the said engaging part.
According to this, compared with the case where a control part is provided separately from an engaging part, the structure of an insulator can be simplified.

  In the electric compressor, the insulator has a flange that contacts the coil, and the flange is positioned between the coil and the cluster block in a radial direction of the rotating shaft, The restricting portion is preferably an end surface on the opposite side of the stator core in the axial direction of the rotating shaft in the flange portion.

According to this, since the collar part which is the existing structure in an insulator serves as a control part, the structure of an insulator can be simplified.
In the electric compressor, the insulator has a flange that contacts the coil, and the flange is positioned between the coil and the cluster block in a radial direction of the rotating shaft, The flange portion has two groove portions that are recessed from the end surface opposite to the stator core in the axial direction of the rotating shaft toward the stator core side, and the two groove portions are aligned in the circumferential direction of the rotating shaft. The engaging portion is a portion sandwiched between the two groove portions and formed by an inner surface of the two groove portions, and the restricting portion is a bottom portion of at least one of the two groove portions. Is preferred.

  According to this, the engaging part is formed by the inner surface of the groove part provided in the collar part. For this reason, an engaging part can be provided, without changing the shape of the collar part which is an existing structure in an insulator. In addition, since the end on the stator core side in the axial direction of the rotating shaft in the engaging portion is located at the bottom of the groove, the end on the opposite side of the stator core in the axial direction of the rotating shaft in the insulator side flange Compared with the cluster block, the cluster block is disposed closer to the stator core in the axial direction of the rotation shaft. Therefore, in the cluster block, the portion of the insulator that protrudes from the end opposite to the stator core in the axial direction of the rotating shaft is reduced. As a result, the enlargement of the electric compressor in the axial direction of the rotating shaft can be further suppressed.

  In the electric compressor, the insulator has the two flanges, the two flanges are positioned so as to be aligned in the circumferential direction of the rotation shaft, and the two flanges are respectively It is preferable to have one of the two groove portions.

  According to this, the two flanges arranged in the circumferential direction of the rotating shaft each have the engaging portion, and each engaging portion is elastically deformed so as to approach each other in the circumferential direction of the rotating shaft. Therefore, it becomes easy to engage the engaging part of the insulator and the engaging part of the cluster block.

  ADVANTAGE OF THE INVENTION According to this invention, the movement of a cluster block when a conductive member is inserted in a conductive member insertion hole can be controlled, suppressing the enlargement to the axial direction of a rotating shaft.

The side sectional view showing the electric compressor in a 1st embodiment. The perspective view of a stator and a cluster block. The disassembled perspective view of a stator and a cluster block. The perspective view of a cluster block. The front view of an electric motor and a cluster block. XX sectional drawing in FIG. The perspective view of the cluster block in 2nd Embodiment. The perspective view of a 2nd insulator. The front view of an electric motor and a cluster block. The YY sectional view taken on the line in FIG. The perspective view of the 2nd insulator in 3rd Embodiment. The perspective view of a cluster block. The front view of an electric motor and a cluster block. Sectional drawing which shows the attachment state of a 2nd insulator and a cluster block. The perspective view of the 2nd insulator in 4th Embodiment. The perspective view of a cluster block. The front view of an electric motor and a cluster block. ZZ sectional drawing in FIG. Sectional drawing which shows the attachment state of a 2nd insulator and a cluster block.

(First embodiment)
Hereinafter, a first embodiment embodying an electric compressor will be described with reference to FIGS.
As shown in FIG. 1, the housing 11 of the electric compressor 10 is connected to a motor housing 12 having a bottomed cylindrical shape in which an opening 12 a is formed at one end (left end in FIG. 1), and one end of the motor housing 12. A discharge housing 13 having a bottomed cylindrical shape. A bottomed cylindrical inverter cover 14 is attached to the bottom wall 121 of the motor housing 12. A discharge chamber S <b> 1 is defined between the motor housing 12 and the discharge housing 13. A discharge port 15 is formed on the bottom wall of the discharge housing 13, and an external refrigerant circuit (not shown) is connected to the discharge port 15. A suction port (not shown) is formed in the peripheral wall 122 of the motor housing 12, and an external refrigerant circuit is connected to the suction port.

  A rotating shaft 16 is accommodated in the motor housing 12. Further, the motor housing 12 accommodates a compression portion 17 that compresses the refrigerant and an electric motor 18 that drives the compression portion 17. The electric motor 18 drives the rotary shaft 16. The compression unit 17 is driven by the rotation of the rotating shaft 16. The electric motor 18 is disposed closer to the bottom wall 121 (right side in FIG. 1) of the motor housing 12 than the compression portion 17.

  A shaft support member 19 is provided between the compression portion 17 and the electric motor 18 in the motor housing 12. An insertion hole 19 a through which one end of the rotating shaft 16 is inserted is formed at the center of the shaft support member 19. A radial bearing 16 a is provided between the insertion hole 19 a and one end of the rotating shaft 16. One end of the rotating shaft 16 is rotatably supported by the shaft support member 19 via a radial bearing 16a.

  A bearing 121 a is recessed in the bottom wall 121 of the motor housing 12. The other end of the rotating shaft 16 is inserted inside the bearing 121a. A radial bearing 16 b is provided between the bearing portion 121 a and the other end portion of the rotating shaft 16. The other end portion of the rotating shaft 16 is rotatably supported by the bearing portion 121a via a radial bearing 16b.

  Further, the accommodation space S <b> 2 is partitioned by the bottom wall 121 of the motor housing 12 and the inverter cover 14. A motor drive circuit 20 (indicated by a two-dot chain line in FIG. 1) for driving the electric motor 18 is attached to the outer surface of the bottom wall 121 in the accommodation space S2. Therefore, in this embodiment, the compression part 17, the electric motor 18, and the motor drive circuit 20 are arrange | positioned along with the direction (axial direction) where the axis line L of the rotating shaft 16 extends in this order.

  The compression unit 17 includes a fixed scroll 17a fixed in the motor housing 12, and a movable scroll 17b disposed to face the fixed scroll 17a. A compression chamber S3 whose volume can be changed is defined between the fixed scroll 17a and the movable scroll 17b.

The electric motor 18 includes a cylindrical stator 21 and a cylindrical rotor 22 disposed inside the stator 21. The rotor 22 rotates integrally with the rotating shaft 16.
As shown in FIGS. 2 and 3, the stator 21 includes a stator core 23. The stator core 23 includes a cylindrical core base 24 fixed to the inner peripheral surface of the motor housing 12, and a plurality of teeth 25 extending radially inward from the inner peripheral surface of the core base 24. The plurality of teeth 25 are formed at equal intervals in the circumferential direction of the rotating shaft 16. The end surface of each tooth 25 opposite to the core base 24 extends along the outer peripheral surface of the rotor 22. In addition, a pair of core side flanges 26 projecting on both sides in the circumferential direction of the core base 24 are formed at the ends of the teeth 25 opposite to the core base 24. The stator core 23 has a slot open 27 that is a gap between the core side flanges 26 adjacent to each other in the circumferential direction of the core base 24. The dimensions of the teeth 25 in the axial direction of the rotating shaft 16 are the same as the dimensions of the core base 24 in the axial direction of the rotating shaft 16. Further, the dimension of the stator core 23 in the axial direction of the rotating shaft 16 is longer than the dimension of the rotor 22 in the axial direction of the rotating shaft 16.

  As shown in FIG. 1, the stator 21 includes an annular first insulator 31 and a second insulator 32. The circumferential directions of the first insulator 31 and the second insulator 32 coincide with the circumferential direction of the rotating shaft 16. The first insulator 31 is disposed so as to be adjacent to the one end surface 23 a on the compression portion 17 side of the stator core 23 in the axial direction of the rotating shaft 16, and the second insulator 32 is the other end surface 23 b of the stator core 23 on the motor drive circuit 20 side. Are arranged next to each other. Therefore, the stator core 23 is sandwiched between the first insulator 31 and the second insulator 32 in the axial direction of the rotating shaft 16.

  As shown in FIG. 3, each of the first insulator 31 and the second insulator 32 includes a cylindrical base portion 33 and a plurality of columnar extending portions 34 extending radially inward from the inner peripheral surface of the base portion 33. With. The plurality of extending portions 34 are formed at equal intervals in the circumferential direction of the base portion 33. The number of extending portions 34 is the same as the number of teeth 25. Of the end faces in the axial direction of the base 33 of the first insulator 31, the end face opposed to the one end face 23a of the stator core 23 is the first end face 33a, and the end face opposite to the first end face 33a is the second end face 33b. To do. Of the end face in the axial direction of the base 33 of the second insulator 32, the end face opposed to the other end face 23b of the stator core 23 is a first end face 33a, and the end face opposite to the first end face 33a is the second end face. 33b. The end on the base 33 side in each extending portion 34 is continuous with the end on the first end surface 33 a side on the inner peripheral surface of the base 33.

  An insulator side flange 35 serving as a plate-like flange projecting toward the second end surface 33b in the axial direction of the base 33 is formed at the end of each extension 34 opposite to the base 33. Yes. An inner peripheral surface 35 a that is a surface opposite to the base portion 33 in each insulator-side flange portion 35 is a curved surface that protrudes toward the base portion 33, and is positioned on the rotor 22 side in the first insulator 31 and the second insulator 32. It is a surrounding surface. In the circumferential direction of the base portion 33, the width of the insulator side flange portion 35 is wider than the width of the extending portion 34. The first insulator 31 and the second insulator 32 have an opening 36 that is a gap between the edge portions 35 b of the insulator-side flange portions 35 that are adjacent to each other in the circumferential direction of the base portion 33. The edge portion 35 b extends in the axial direction of the base portion 33. Therefore, the edge portions 35b of the insulator side flange portions 35 adjacent to each other in the circumferential direction of the base portion 33 extend in parallel to each other. The insulator-side flange portion 35 of the second insulator 32 has a distal end surface 35 c as a restricting portion on the end surface opposite to the extending portion 34 in the axial direction of the base portion 33. The tip end surface 35 c of the insulator-side flange portion 35 is an end surface located on the side opposite to the stator core 23 in the axial direction of the rotating shaft 16.

  In the axial direction of the rotating shaft 16, the stator core 23, the first insulator 31 and the second insulator 32 are such that the core base 24 and the base portion 33 are opposed to each other, and the teeth 25 and the extending portion 34 are opposed to each other. The insulator side flange portion 35 is disposed so as to extend in a direction away from the stator core 23 in the axial direction of the rotating shaft 16. Further, in the axial direction of the rotating shaft 16, the openings 36 of the first insulator 31 and the openings 36 of the second insulator 32 are continuous with the slot openings 27 of the stator core 23. Therefore, when viewed from the axial direction of the rotating shaft 16, the openings 36 of the first insulator 31, the openings 36 of the second insulator 32, and the slot openings 27 of the stator core 23 communicate with each other.

  As shown in FIGS. 1 and 2, in the stator 21, the conductive wires are wound in a concentrated manner around the teeth 25 of the stator core 23, the extended portions 34 of the first insulator 31, and the extended portions 34 of the second insulator 32. A plurality of coils 28 formed by being rotated are provided. The coils 28 adjacent to each other in the circumferential direction of the core base 24 and the base 33 are in different phases (U phase, V phase, W phase). A part of each coil 28 passes through a first space 25 a (see FIG. 3) formed between the teeth 25 adjacent in the circumferential direction of the core base 24. Each coil 28 includes a first coil end 281 protruding from the first space 25a on the one end surface 23a side of the stator core 23, and a second coil end 282 protruding from the first space 25a on the other end surface 23b side of the stator core 23. have.

  The first coil end 281 includes a second space 34 a (see FIG. 3) formed between the extending portions 34 adjacent to each other in the circumferential direction of the base portion 33 of the first insulator 31, and a base portion 33 in the radial direction of the base portion 33. Between the inner peripheral surface and the insulator-side flange portion 35 and through a space located on the opposite side of the extension portion 34 from the teeth 25. The second coil end 282 includes a second space 34 a (see FIG. 3) formed between the extending portions 34 adjacent to each other in the circumferential direction of the base portion 33 of the second insulator 32, and a base portion 33 in the radial direction of the base portion 33. Between the inner peripheral surface and the insulator-side flange portion 35 and through a space located on the opposite side of the extension portion 34 from the teeth 25.

  For example, the coil 28 formed by winding a conductive wire around the tooth 25 and the extending portion 34 includes, for example, a wire winding nozzle, a slot open 27 of the stator core 23, an opening 36 of the first insulator 31, and a second insulator 32. The conductive wire is wound around the teeth 25 and the extension portion 34 by concentrated winding while passing through the opening 36. Further, there is a case where the coil 28 in which the conductor is wound in an annular shape is inserted into the first space 25a and the second space 34a via the slot opening 27 and the opening 36 without using the conductor winding nozzle. .

  A portion of the coil 28 that passes through the first space 25a is insulated from the stator core 23 by an insulating sheet (not shown). The first coil end 281 and the second coil end 282 of each coil 28 are in contact with the base portions 33 of the first insulator 31 and the second insulator 32, thereby restricting the movement of the base portion 33 outward in the radial direction. Further, the first coil end 281 and the second coil end 282 of each coil 28 come into contact with the insulator-side flange portion 35 of the first insulator 31 and the second insulator 32, so that the base 33 is moved radially inward. It is regulated. The first coil end 281 is insulated from the teeth 25 of the stator core 23 by the extending portion 34 of the first insulator 31. The second coil end 282 is insulated from the teeth 25 of the stator core 23 by the extension 34 of the second insulator 32.

  From the second coil end 282 of the U-phase, V-phase, and W-phase coils 28, one end of the conducting wire is drawn out one by one. And the motor wiring 28a pulled out from the 2nd coil end 282 is formed by putting together the one end part of each conducting wire for every phase. The other end portions of the conducting wires are drawn out one by one from the second coil ends 282 of the U-phase, V-phase, and W-phase coils 28, and the other end portions of the conducting wires of the respective phases are connected to a neutral point (not shown). Are electrically connected to each other.

  As shown in FIG. 1, a through hole 121 b is formed in the bottom wall 121 of the motor housing 12. An airtight terminal 40 is disposed in the through hole 121b. The hermetic terminal 40 has three conductive members 41 (only one is shown in FIG. 1) corresponding to the U-phase, V-phase, and W-phase coils 28. Each conductive member 41 is a columnar metal terminal extending linearly, and is inserted through the through hole 121b. One end of each conductive member 41 is electrically connected to the motor drive circuit 20 in the accommodation space S2. The other end of each conductive member 41 protrudes into the motor housing 12. In addition, the airtight terminal 40 includes a glass insulating member 42 that fixes each conductive member 41 while being insulated from the bottom wall 121.

  A connector 50 is accommodated in the motor housing 12. The connector 50 includes three connection terminals 51 (only one is shown in FIG. 1) corresponding to the U-phase, V-phase, and W-phase coils 28, and an insulating cluster block 52 that accommodates the three connection terminals 51. I have. The cluster block 52 is disposed inside the second insulator 32 in the radial direction of the rotating shaft 16. The cluster block 52 is disposed adjacent to one end surface of the rotor 22 on the motor drive circuit 20 side in the axial direction of the rotating shaft 16.

  As shown in FIGS. 2 to 4, the cluster block 52 has a flat box shape. The cluster block 52 includes a pair of flat walls 52a and a connecting wall 52b that connects the pair of flat walls 52a. The connecting wall 52b includes a planar first wall 52c, a curved second wall 52d along the inner peripheral surface 35a of the insulator side flange 35, and a stepped third wall 52e. Have. The third wall portion 52e connects the first wall portion 52c and the second wall portion 52d.

  As shown in FIG. 1, an accommodating portion 53 that accommodates the connection terminal 51 is formed inside the cluster block 52. Further, as shown in FIG. 2, three motor wiring insertion holes 54 are formed in the third wall portion 52 e of the cluster block 52. The end of each motor wiring 28 a drawn out from the coil 28 is inserted into each motor wiring insertion hole 54. Each motor wiring 28 a inserted through each motor wiring insertion hole 54 is electrically connected to the connection terminal 51. Further, three conductive member insertion holes 55 into which the conductive member 41 is inserted are formed in one of the pair of flat walls 52 a of the cluster block 52. Hereinafter, the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 and the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 are referred to as the direction in which the conductive member 41 is inserted into and extracted from the conductive member insertion hole 55. The connecting wall 52 b extends along the direction in which the conductive member 41 is inserted and removed from the conductive member insertion hole 55.

  As shown in FIG. 4, the cluster block 52 includes a claw portion 56 as an engaging portion that protrudes from the outer surface of the second wall portion 52d. The claw portion 56 has a flat plate-like standing portion 561 standing up from the outer surface of the second wall portion 52d, and the conductive member 41 from the end of the standing portion 561 opposite to the second wall portion 52d. And a flat plate-like extension part 562 extending in the direction of insertion. The end portion of the upright portion 561 on the second wall portion 52d side is continuous with the edge portion on the one flat wall 52a side on the outer surface of the second wall portion 52d. The distance between the outer surface of the second wall portion 52 d and the inner surface of the extending portion 562 is slightly larger than the size of the insulator side flange portion 35 in the radial direction of the base portion 33.

  As shown in FIGS. 5 and 6, the cluster block 52 and the second insulator 32 are connected to each other by attaching the claw portion 56 to the insulator side flange portion 35. Therefore, in this embodiment, the insulator side collar part 35 is an engaging part. As a method of connecting the second insulator 32 and the cluster block 52, first, the space between the outer surface of the second wall portion 52d and the extending portion 562 is inserted into and removed from the conductive member insertion hole 55. The cluster block 52 is disposed inside the second insulator 32 so as to face the front end surface 35c of the insulator side flange 35 in the direction to be moved. Next, the cluster block 52 is moved in the direction in which the conductive member 41 is inserted and removed from the conductive member insertion hole 55 with respect to the second insulator 32 so that the claw portion 56 approaches the insulator side flange portion 35. Then, the extension part 562 of the nail | claw part 56 is latched by the surface by the side of the base 33 in the insulator side collar part 35, and the cluster block 52 and the 2nd insulator 32 are mutually connected so that a movement is relatively possible. The

  In a state where the cluster block 52 and the second insulator 32 are connected, the tip end surface 35 c of the insulator side flange portion 35 of the second insulator 32 causes the conductive member 41 to move more than the standing portion 561 of the claw portion 56 of the cluster block 52. It is located on the direction side of insertion into the conductive member insertion hole 55. The standing part 561 of the claw part 56 faces the tip surface 35 c of the insulator side flange part 35 in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55. Thereby, the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted.

  The insulator side flange 35 of the second insulator 32 is located between the coil 28 and the cluster block 52 in the radial direction of the rotating shaft 16. The second wall portion 52 d of the cluster block 52 faces the inner peripheral surface 35 a of the insulator side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. That is, the cluster block 52 is disposed inside the second insulator 32 in the radial direction of the rotating shaft 16. In the axial direction of the rotating shaft 16, one of the pair of flat walls 52 a of the cluster block 52 is located on the motor drive circuit 20 side, and the other is located on the rotor 22 side. A gap is provided between the cluster block 52 and the rotor 22 in the axial direction of the rotary shaft 16.

  The other end of each conductive member 41 is inserted into each conductive member insertion hole 55 of the cluster block 52 connected to the second insulator 32 and electrically connected to each connection terminal 51. That is, in the cluster block 52, each motor wiring 28 a and each conductive member 41 are electrically connected via each connection terminal 51. Thereby, the electric motor 18 and the motor drive circuit 20 are electrically connected via each motor wiring 28a, each connection terminal 51, and each conductive member 41. Then, electric power is supplied from the motor drive circuit 20 to the electric motor 18 via the conductive members 41, the connection terminals 51, and the motor wirings 28a, whereby the electric motor 18 is driven and the electric motor 18 is driven. Due to the rotation of the rotating shaft 16, the compressor 17 is driven and the refrigerant is compressed by the compressor 17.

Next, the effect of 1st Embodiment is described with an effect | action.
(1-1) The cluster block 52 and the second insulator 32 are coupled so as to be relatively movable by attaching the claw portion 56 to the insulator side flange portion 35. In a state where the cluster block 52 and the second insulator 32 are connected, the second wall portion 52d of the cluster block 52 is connected to the inner peripheral surface 35a of the insulator-side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. Opposite. That is, the cluster block 52 is located inside the second insulator 32 in the radial direction of the rotating shaft 16. Therefore, as compared with the case where the cluster block is arranged adjacent to the coil in the axial direction of the rotating shaft as in the prior art, the second insulator 32 is opposite to the stator core 23 in the axial direction of the rotating shaft 16. The part which protrudes from an edge part is reduced. As a result, the increase in size of the electric compressor 10 in the axial direction of the rotating shaft 16 can be suppressed.

  When the conductive member 41 is to be inserted into the conductive member insertion hole 55 in a state where the cluster block 52 and the second insulator 32 are connected, the cluster block 52 inserts the conductive member 41 into the conductive member insertion hole 55. Try to move in the direction. Specifically, when the conductive member 41 is to be inserted into the conductive member insertion hole 55, the connection terminal 51 moves in a direction in which the conductive member 41 is inserted into the conductive member insertion hole 55, and the accommodating portion 53 of the cluster block 52 is moved. It is pressed against the inner wall. Then, when the insertion of the conductive member 41 into the conductive member insertion hole 55 is continued in a state where the connection terminal 51 is pressed against the inner wall of the cluster block 52, the cluster block 52 causes the conductive member 41 to be inserted into the conductive member insertion hole 55. Try to move in the direction of insertion.

  At this time, since the distal end surface 35c of the insulator side flange 35 is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the standing portion 561 of the claw portion 56, the rising portion 561 is on the insulator side. The insulator side flange 35 receives a load from the cluster block 52 in contact with the distal end surface 35 c of the flange 35. As a result, the movement of the cluster block 52 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. As a result, the conductive member 41 can be easily inserted into the conductive member insertion hole 55. Further, it is possible to restrict the cluster block 52 from being detached from the second insulator 32. From the above, it is possible to restrict the movement of the cluster block 52 when the conductive member 41 is inserted into the conductive member insertion hole 55 while suppressing the enlargement of the rotating shaft 16 in the axial direction.

  (1-2) The front end surface 35c, which is a part of the insulator-side flange 35, restricts movement of the cluster block 52 relative to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55. Doubles as Therefore, the configuration of the second insulator 32 can be simplified as compared with the case where the restricting portion is provided in the insulator side flange portion 35 different from the insulator side flange portion 35 to which the claw portion 56 of the cluster block 52 is attached.

  (1-3) The coil 28 formed by winding a conductive wire around the tooth 25 and the extension portion 34 is configured such that the first coil end 281 and the second coil end 282 are the insulator side of the first insulator 31 and the second insulator 32. By abutting against the flange 35, the movement of the base 33 in the radial direction is restricted. Therefore, the insulator-side flanges 35 of the first insulator 31 and the second insulator 32 are necessary for restricting the coil 28 from falling off from the teeth 25 and the extending portion 34, and the first insulator 31 and the second insulator 32. In the existing configuration.

  In the present embodiment, the cluster block 52 is connected to the second insulator 32 in a state in which the extending portion 562 of the claw portion 56 faces the distal end surface 35c of the insulator-side flange portion 35 that is an existing configuration in the second insulator 32. Has been. For this reason, it is not necessary to form the part for attaching a cluster block to an insulator like the prior art in the 2nd insulator 32, and the structure of the 2nd insulator 32 can be simplified.

  (1-4) In a state where the cluster block 52 and the second insulator 32 are connected, the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. Therefore, a gap exists between the cluster block 52 and the rotor 22 in the axial direction of the rotating shaft 16. Therefore, rotation failure of the rotor 22 and damage to the cluster block 52 due to contact between the rotor 22 and the cluster block 52 can be suppressed.

(Second Embodiment)
Hereinafter, a second embodiment in which the electric compressor is embodied will be described with reference to FIGS. In addition, about the structure same as 1st Embodiment, while attaching | subjecting the same code | symbol as 1st Embodiment, description is abbreviate | omitted.

  As shown in FIG. 7, a claw portion 57 as an engaging portion is provided on the outer surface of the second wall portion 52 d of the cluster block 52. The claw portion 57 has a flat plate-like standing portion 571 rising from the outer surface of the second wall portion 52d, and the conductive member 41 through the end of the standing portion 571 opposite to the second wall portion 52d. And an elongated thin plate-like extension portion 572 extending in the direction of insertion. The end portion of the upright portion 571 on the second wall portion 52d side is continuous with the edge portion on the one flat wall 52a side on the outer surface of the second wall portion 52d.

  The extending portion 572 has a bowl shape in which an engaging piece 573 that protrudes toward the outer surface of the second wall portion 52d is formed at the end of the extending portion 572 opposite to the standing portion 571. The locking piece 573 has an inclined guide portion 573a. The guide portion 573a is a slope that gradually approaches the outer surface of the second wall portion 52d as it goes from the end portion on the locking piece 573 side of the extending portion 572 toward the end portion on the upright portion 571 side.

  As shown in FIG. 8, among the plurality of insulator side flanges 35 included in the second insulator 32, the cluster block 52 is connected to the second insulator 32 on the inner peripheral surface 35 a of one insulator side flange 35. A mounting wall portion 37 is formed as an engaging portion. The mounting wall portion 37 is a flat plate-shaped plate that connects a pair of flat plate-like standing walls 371 erected radially inward from the inner peripheral surface 35 a of the insulator-side flange portion 35, and tip portions of the pair of standing walls 371. It has the connection wall 372 as a control part. The pair of standing walls 371 extend in parallel to each other. And the claw part insertion hole 37a in which the extension part 572 is inserted is formed by the inner peripheral surface 35a of the insulator side collar part 35, the inner surface of a pair of standing wall 371, and the inner surface of the connection wall 372. Therefore, the attachment wall portion 37 forms a claw portion insertion hole 37a. The claw portion insertion hole 37 a of the present embodiment penetrates in the axial direction of the base portion 33.

  As shown in FIGS. 9 and 10, the cluster block 52 and the second insulator 32 are connected to each other by inserting the extended portion 572 of the claw portion 57 into the claw portion insertion hole 37 a formed by the mounting wall portion 37. It is connected.

  As a method of connecting the cluster block 52 to the second insulator 32, first, the one piece of the claw portion insertion hole 37 a is engaged with the engagement piece of the claw portion 57 in the direction in which the conductive member 41 is inserted and removed from the conductive member insertion hole 55. The cluster block 52 is arranged inside the second insulator 32 so as to face the 573. Next, the cluster block 52 is moved with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted / removed with respect to the conductive member insertion hole 55 so that the claw portion 57 approaches the mounting wall portion 37. Then, the claw portion 57 is guided toward the claw portion insertion hole 37a by the guide portion 573a of the locking piece 573, and the claw portion 57 is elastically deformed in a direction away from the second wall portion 52d. And the extension part 572 is inserted in the nail | claw part insertion hole 37a. The claw portion 57 that has been elastically deformed away from the second wall portion 52d is inserted into the claw portion insertion hole 37a, and then returns to the original position before elastic deformation.

  In the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55, the distance between the standing portion 571 of the cluster block 52 and the locking piece 573 is longer than the dimension of the connection wall 372 of the second insulator 32. Therefore, the cluster block 52 and the second insulator 32 are relatively movable while being connected to each other. The connection wall 372 of the attachment wall portion 37 of the second insulator 32 is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the standing portion 571 of the claw portion 57 of the cluster block 52. The standing portion 571 of the claw portion 57 faces the connection wall 372 in the direction in which the conductive member 41 is inserted and removed from the conductive member insertion hole 55. Thereby, the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted.

  The insulator side flange 35 of the second insulator 32 is located between the coil 28 and the cluster block 52 in the radial direction of the rotating shaft 16. The second wall portion 52 d of the cluster block 52 faces the inner peripheral surface 35 a of the insulator side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. That is, the cluster block 52 is disposed inside the second insulator 32 in the radial direction of the rotating shaft 16. In the axial direction of the rotating shaft 16, one of the pair of flat walls 52 a of the cluster block 52 is located on the motor drive circuit 20 side, and the other is located on the rotor 22 side. A gap is provided between the cluster block 52 and the rotor 22 in the axial direction of the rotary shaft 16.

Next, the effect of 2nd Embodiment is described with an effect | action.
(2-1) The cluster block 52 and the second insulator 32 are coupled so as to be relatively movable by inserting the extending portion 572 of the claw portion 57 into the claw portion insertion hole 37a. In a state where the cluster block 52 and the second insulator 32 are connected, the second wall portion 52d of the cluster block 52 is connected to the inner peripheral surface 35a of the insulator-side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. Opposite. That is, as compared with the case where the cluster block is arranged adjacent to the coil in the axial direction of the rotating shaft as in the prior art, the second insulator 32 is opposite to the stator core 23 in the axial direction of the rotating shaft 16. The part which protrudes from an edge part is reduced. As a result, the increase in size of the electric compressor 10 in the axial direction of the rotating shaft 16 can be suppressed.

  When the conductive member 41 is inserted into the conductive member insertion hole 55 in a state where the cluster block 52 and the second insulator 32 are connected, the cluster block 52 inserts the conductive member 41 into the conductive member insertion hole 55. Try to move in the direction. Specifically, when the conductive member 41 is to be inserted into the conductive member insertion hole 55, the connection terminal 51 moves in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55, and the accommodating portion 53 of the cluster block 52 is moved. It is pressed against the inner wall. Then, when the insertion of the conductive member 41 into the conductive member insertion hole 55 is continued in a state where the connection terminal 51 is pressed against the inner wall of the cluster block 52, the cluster block 52 causes the conductive member 41 to be inserted into the conductive member insertion hole 55. Try to move in the direction of insertion.

  At this time, the connection wall 372 of the mounting wall portion 37 is located on the side of the conductive member 41 in the direction of inserting the conductive member 41 into the conductive member insertion hole 55 with respect to the standing portion 571 of the claw portion 57. The attachment wall portion 37 contacts the connection wall 372 of the portion 37, and receives a load from the cluster block 52. As a result, the movement of the cluster block 52 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. As a result, the conductive member 41 can be easily inserted into the conductive member insertion hole 55. Further, it is possible to restrict the cluster block 52 from being detached from the second insulator 32. From the above, it is possible to restrict the movement of the cluster block 52 when the conductive member 41 is inserted into the conductive member insertion hole 55 while suppressing the enlargement of the rotating shaft 16 in the axial direction.

  (2-2) The connection wall 372 that is a part of the mounting wall portion 37 is a restriction portion that restricts the movement of the cluster block 52 relative to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55. Also serves as. Therefore, the configuration of the second insulator 32 can be simplified as compared with the case where the restricting portion is provided in the insulator side flange 35 different from the insulator side flange 35 provided with the attachment wall portion 37.

  (2-3) Since the extending portion 572 of the claw portion 57 of the cluster block 52 is surrounded by the mounting wall portion 37, the connected state of the cluster block 52 to the second insulator 32 can be stabilized.

  (2-4) Even if the cluster block 52 tries to move in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55, the connection wall 372 of the mounting wall portion 37 is inserted into the conductive member more than the locking piece 573 of the claw portion 57. Since it is located on the side where the conductive member 41 is pulled out from the hole 55, the locking piece 573 comes into contact with the connection wall 372 of the mounting wall portion 37, and the mounting wall portion 37 receives a load from the cluster block 52. For this reason, the movement of the cluster block 52 in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is suppressed. Therefore, it is possible to prevent the cluster block 52 from being detached from the second insulator 32.

  (2-5) In the state where the cluster block 52 and the second insulator 32 are connected, when an assembly failure occurs or maintenance is performed, if the conductive member 41 is pulled out from the conductive member insertion hole 55, the cluster The block 52 tends to move in the direction of pulling out the conductive member 41 from the conductive member insertion hole 55. At this time, the locking piece 573 of the claw portion 57 contacts the connection wall 372 of the mounting wall portion 37, and the mounting wall portion 37 receives a load from the cluster block 52. Thereby, the movement of the cluster block 52 in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is suppressed. As a result, it is possible to prevent the cluster block 52 from being detached from the second insulator 32 when the conductive member 41 is pulled out from the conductive member insertion hole 55.

  (2-6) The locking piece 573 of the claw portion 57 has a guide portion 573a. When the cluster block 52 is connected to the second insulator 32, the claw portion 57 of the cluster block 52 is guided toward the claw portion insertion hole 37a by the guide portion 573a, so that the claw portion 57 is inserted into the claw portion insertion hole 37a. It becomes easy to do. Therefore, it becomes easy to connect the cluster block 52 to the second insulator 32.

  (2-7) In a state where the cluster block 52 and the second insulator 32 are connected, the movement of the cluster block 52 relative to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. Therefore, a gap exists between the cluster block 52 and the rotor 22 in the axial direction of the rotating shaft 16. Therefore, rotation failure of the rotor 22 and damage to the cluster block 52 due to contact between the rotor 22 and the cluster block 52 can be suppressed.

(Third embodiment)
Hereinafter, a third embodiment in which the electric compressor is embodied will be described with reference to FIGS. In addition, about the structure same as 1st Embodiment, while attaching | subjecting the same code | symbol as 1st Embodiment, description is abbreviate | omitted.

  As shown in FIG. 11, the second insulator 32 has two groove portions 38 in the insulator side flange portion 35. One of the two groove portions 38 is provided in one insulator-side flange portion 35 of the plurality of insulator-side flange portions 35, and the other is an insulator in which one groove portion 38 of the plurality of insulator-side flange portions 35 is provided. It is provided on the insulator side flange 35 arranged in the circumferential direction of the side flange 35 and the base 33. Accordingly, the two groove portions 38 are positioned so as to be aligned in the circumferential direction of the base portion 33. Each groove portion 38 has a shape recessed from the distal end surface 35c of each insulator side flange 35 toward the stator core 23 side. In other words, each groove portion 38 has a shape that is recessed in a direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 from the tip surface 35 c of each insulator side flange 35. Each groove portion 38 includes a pair of inner side surfaces 38 a that form a pair in the circumferential direction of the base portion 33, and a regulating portion that connects ends of the pair of inner side surfaces 38 a on the direction side in which the conductive member 41 is inserted into the conductive member insertion hole 55. And the bottom 38b. In the present embodiment, the depths of the two groove portions 38 in the direction in which the conductive member 41 is inserted and removed from the conductive member insertion hole 55 are the same.

  Each insulator side flange portion 35 provided with the groove portion 38 has a claw portion 381 as an elongated plate-like engagement portion extending in a direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55. The second insulator 32 has a pair of claw portions 381 positioned so as to be aligned in the circumferential direction of the base portion 33. Of the end portions of the claw portions 381, the end portion located on the direction side in which the conductive member 41 is inserted into the conductive member insertion hole 55 is positioned at the bottom portion 38 b of the groove portion 38. Each claw portion 381 has a pair of side surfaces in the circumferential direction of the base portion 33. One of the pair of side surfaces is one inner side surface 38a of the groove portion 38, and the other is an end surface in the circumferential direction of the base portion 33 in the insulator side flange portion 35. The pair of claws 381 are a part of the insulator-side flange 35 and are portions sandwiched between the two grooves 38 in the circumferential direction of the base 33.

  Each claw portion 381 has a hook shape in which a locking piece 382 protruding toward the circumferential direction of the base portion 33 is formed at an end portion of the claw portion 381 on the opposite side to the bottom portion 38b of the groove portion 38. The locking piece 382 of one claw portion 381 protrudes toward the side opposite to the other claw portion 381, and the locking piece 382 of the other claw portion 381 faces toward the side opposite to the one claw portion 381. It protrudes. Each locking piece 382 has an inclined guide portion 382a. Each guide portion 382a is a slope that gradually approaches the insulator-side flange portion 35 from the end portion on the locking piece 382 side of the claw portion 381 toward the end portion on the bottom portion 38b side of the groove portion 38.

  As shown in FIG. 12, a mounting wall portion 58 as an engaging portion for connecting the cluster block 52 to the second insulator 32 is formed on the outer surface of the second wall portion 52 d of the cluster block 52. The mounting wall portion 58 includes a pair of flat plate-like standing walls 581 erected from the outer surface of the second wall portion 52d, and a flat plate-like connection wall 582 that connects tip ends of the pair of standing walls 581. . The pair of standing walls 581 extend in parallel to each other. A claw portion insertion hole 58a into which the claw portion 381 is inserted is formed by the outer surface of the second wall portion 52d, the inner surfaces of the pair of standing walls 581, and the inner surface of the connection wall 582. Therefore, the attachment wall portion 58 forms a claw portion insertion hole 58a. The claw portion insertion hole 58 a of the present embodiment penetrates in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55.

  As shown in FIGS. 13 and 14, the cluster block 52 and the second insulator 32 are connected to each other by inserting a pair of claw portions 381 into a claw portion insertion hole 58 a formed by the mounting wall portion 58. Yes.

  As a method of connecting the cluster block 52 to the second insulator 32, first, the engagement of the pair of claws 381 in the direction in which one opening of the claw insertion hole 58a inserts and removes the conductive member 41 with respect to the conductive member insertion hole 55. The cluster block 52 is disposed inside the second insulator 32 so as to face the stop piece 382. Next, the cluster block 52 is moved in the direction in which the conductive member 41 is inserted into and extracted from the conductive member insertion hole 55 with respect to the second insulator 32 so that the mounting wall portion 58 approaches the pair of claw portions 381. Then, each standing wall 581 of the mounting wall portion 58 is a space between the circumferential end portion of the base portion 33 and the claw portion 381 in the insulator side flange portion 35 by the guide portion 382a of the locking piece 382 of each claw portion 381. The pair of claws 381 are elastically deformed so as to approach each other toward the opening 36. Then, when the attachment wall portion 58 gets over the locking piece 382, the claw portion 381 is inserted into the claw portion insertion hole 58a. The pair of claw portions 381 that have been elastically deformed so as to approach each other are returned to their original positions before elastic deformation after being inserted into the claw portion insertion holes 58a.

  In the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55, the distance between the bottom 38 b of the groove portion 38 of the second insulator 32 and the locking piece 382 is longer than the dimension of the connection wall 582 of the cluster block 52. Therefore, the cluster block 52 and the second insulator 32 are relatively movable while being connected to each other. The bottom portion 38 b of the groove portion 38 of the second insulator 32 is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the standing wall 581 of the mounting wall portion 58 of the cluster block 52. The standing wall 581 is opposed to the bottom 38 b of each groove 38 in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55. Thereby, the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted.

  The insulator side flange 35 of the second insulator 32 is located between the coil 28 and the cluster block 52 in the radial direction of the rotating shaft 16. The second wall portion 52 d of the cluster block 52 faces the inner peripheral surface 35 a of the insulator side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. That is, the cluster block 52 is disposed inside the second insulator 32 in the radial direction of the rotating shaft 16. In the axial direction of the rotating shaft 16, one of the pair of flat walls 52 a of the cluster block 52 is located on the motor drive circuit 20 side, and the other is located on the rotor 22 side. A gap is provided between the cluster block 52 and the rotor 22 in the axial direction of the rotary shaft 16.

Next, effects of the third embodiment will be described together with actions.
(3-1) The cluster block 52 and the second insulator 32 are coupled so as to be relatively movable by inserting a pair of claw portions 381 into the claw portion insertion holes 58a. In a state where the cluster block 52 and the second insulator 32 are connected, the second wall portion 52d of the cluster block 52 is connected to the inner peripheral surface 35a of the insulator-side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. Opposite. That is, the cluster block 52 is located inside the second insulator 32 in the radial direction of the rotating shaft 16. Therefore, as compared with the case where the cluster block is arranged adjacent to the coil in the axial direction of the rotating shaft as in the prior art, the second insulator 32 is opposite to the stator core 23 in the axial direction of the rotating shaft 16. The part which protrudes from an edge part is reduced. As a result, the increase in size of the electric compressor 10 in the axial direction of the rotating shaft 16 can be suppressed.

  Further, in a state where the cluster block 52 is connected to the second insulator 32, the cluster block 52 tends to move in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55. Specifically, when the conductive member 41 is to be inserted into the conductive member insertion hole 55, the connection terminal 51 moves in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55, and the accommodating portion 53 of the cluster block 52 is moved. It is pressed against the inner wall. Then, when the insertion of the conductive member 41 into the conductive member insertion hole 55 is continued in a state where the connection terminal 51 is pressed against the inner wall of the cluster block 52, the cluster block 52 causes the conductive member 41 to be inserted into the conductive member insertion hole 55. Try to move in the direction of insertion.

  At this time, the bottom portion 38b of each groove portion 38 is located on the side of the conductive member 41 in the direction of inserting the conductive member 41 into the conductive member insertion hole 55 with respect to the standing wall 581 of the mounting wall portion 58. The bottom 38b of each groove 38 is in contact with the bottom 38b of the groove 38 and receives a load from the cluster block 52. Thereby, the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. As a result, the conductive member 41 can be easily inserted into the conductive member insertion hole 55. Further, it is possible to restrict the cluster block 52 from being detached from the second insulator 32. From the above, it is possible to restrict the movement of the cluster block 52 when the conductive member 41 is inserted into the conductive member insertion hole 55 while suppressing the enlargement of the rotating shaft 16 in the axial direction.

  (3-2) The inner side surface 38a of the groove portion 38 also serves as a side surface of the claw portion 381, and the bottom portion 38b of the groove portion 38 also serves as a restriction portion that restricts the movement of the cluster block 52 relative to the second insulator 32. Therefore, the configuration of the second insulator 32 can be simplified as compared with the case where the restricting portion is provided in the insulator side flange portion 35 different from the insulator side flange portion 35 provided with the groove portion 38.

  (3-3) The claw portion 381 is formed by the inner side surface 38 a of the groove portion 38 provided in the insulator side flange portion 35. For this reason, the nail | claw part 381 can be provided, without changing the shape of the insulator side collar part 35 which is the existing structure in the 2nd insulator 32. FIG. Further, the end of the claw portion 381 on the stator core 23 side in the axial direction of the rotating shaft 16 is located at the bottom portion 38 b of the groove portion 38. For this reason, compared with the case where the edge part by the side of the stator core 23 in the axial direction of the rotating shaft 16 in the nail | claw part 381 is located in the front end surface 35c of the insulator side collar part 35, for example, the cluster block 52 is the rotating shaft 16 In the axial direction of the stator core 23. Therefore, in the cluster block 52, the portion of the second insulator 32 that protrudes from the end opposite to the stator core 23 in the axial direction of the rotating shaft 16 is reduced. As a result, the enlargement of the electric compressor 10 in the axial direction of the rotating shaft 16 can be further suppressed.

  (3-4) In the circumferential direction of the base portion 33, an opening 36 that is an existing configuration of the second insulator 32 is provided between the insulator side flange portions 35. For this reason, when the cluster block 52 is connected to the second insulator 32, the pair of claw portions 381 can be elastically deformed so as to approach each other in the circumferential direction of the base portion 33. Therefore, it becomes easy to insert the pair of claw portions 381 into the claw portion insertion holes 58a of the mounting wall portion 58.

  (3-5) Even if the cluster block 52 attempts to move in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55, the locking piece 382 of each claw portion 381 is more conductive than the standing wall 581 of the mounting wall portion 58. 55, the standing wall 581 contacts the locking piece 382 of each claw portion 381, and each locking piece 382 receives a load from the cluster block 52. For this reason, the movement of the cluster block 52 in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is suppressed. Therefore, it is possible to prevent the cluster block 52 from being detached from the second insulator 32.

  (3-6) In a state where the cluster block 52 and the second insulator 32 are connected, when an assembly failure occurs or maintenance is performed, if the conductive member 41 is pulled out from the conductive member insertion hole 55, the cluster The block 52 tends to move in the direction of pulling out the conductive member 41 from the conductive member insertion hole 55. At this time, the standing wall 581 of the attachment wall portion 58 contacts the locking piece 382 of each claw portion 381, and each locking piece 382 receives a load from the cluster block 52. Thereby, the movement of the cluster block 52 in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is suppressed. As a result, it is possible to prevent the cluster block 52 from being detached from the second insulator 32 when the conductive member 41 is pulled out from the conductive member insertion hole 55.

  (3-7) Two claw portions 381 are inserted into the claw portion insertion holes 58a. For this reason, compared with the case where one nail | claw part is inserted in the nail | claw part insertion hole, the nail | claw part 381 becomes difficult to pull out from the nail | claw part insertion hole 58a. Therefore, the connection state of the cluster block 52 with respect to the second insulator 32 can be stabilized.

  (3-8) The locking piece 382 of the claw portion 381 has a guide portion 382a. When the cluster block 52 is connected to the second insulator 32, the standing wall 581 of the mounting wall portion 58 of the cluster block 52 is guided toward the groove portion 38 of the insulator side flange portion 35 by the guide portion 382a. It becomes easy to insert into the nail | claw part insertion hole 58a. Therefore, it becomes easy to connect the cluster block 52 to the second insulator 32.

  (3-9) In a state where the cluster block 52 and the second insulator 32 are connected, the movement of the cluster block 52 relative to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. Therefore, a gap exists between the cluster block 52 and the rotor 22 in the axial direction of the rotating shaft 16. Therefore, rotation failure of the rotor 22 and damage to the cluster block 52 due to contact between the rotor 22 and the cluster block 52 can be suppressed.

(Fourth embodiment)
Hereinafter, a fourth embodiment in which the electric compressor is embodied will be described with reference to FIGS. In addition, about the structure same as 1st Embodiment, while attaching | subjecting the same code | symbol as 1st Embodiment, description is abbreviate | omitted.

  As shown in FIG. 15, among the plurality of insulator side flanges 35 included in the second insulator 32, one insulator side flange 35 is provided with two grooves 39. Each groove 39 has a shape recessed from the tip surface 35c of each insulator side flange 35 toward the stator core 23 side. In other words, each groove 39 has a shape that is recessed in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 from the tip surface 35 c of each insulator side flange 35. The two groove portions 39 are positioned so as to be aligned in the circumferential direction of the base portion 33. The groove portion 39 is a restriction portion that connects a pair of inner side surfaces 39a that form a pair in the circumferential direction of the base portion 33 and ends in the direction in which the conductive member 41 in the pair of inner side surfaces 39a is inserted into the conductive member insertion hole 55. And the bottom 39b. In the present embodiment, the depths of the two groove portions 39 in the direction in which the conductive member 41 is inserted and removed from the conductive member insertion hole 55 are the same.

  The insulator side flange portion 35 has a claw portion 391 as an elongated plate-like engagement portion extending in a direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55. Of the end portions of the claw portion 391, the end portion located on the direction side in which the conductive member 41 is inserted into the conductive member insertion hole 55 is located at the bottom portion 39 b of the groove portion 39. The claw portion 391 has a pair of side surfaces in the circumferential direction of the base portion 33. One of the pair of side surfaces is an inner side surface 39 a of one groove portion 39, and the other is an inner side surface 39 a of the other groove portion 39. The claw portion 391 is a part of the insulator side flange portion 35 and is a portion sandwiched between the two groove portions 39 in the circumferential direction of the base portion 33. The claw portion 391 has a hook shape in which a locking piece 392 that protrudes toward the base portion 33 is formed at an end portion of the claw portion 391 opposite to the bottom portion 39 b of the groove portion 39. The locking piece 392 has an inclined guide portion 392a. The guide portion 392a is a slope that gradually approaches the base portion 33 as it goes from the end portion on the locking piece 392 side of the claw portion 391 toward the end portion on the bottom portion 39b side of the groove portion 39.

  As shown in FIG. 16, a mounting wall portion 59 as an engaging portion for connecting the cluster block 52 to the second insulator 32 is formed on the outer surface of the second wall portion 52 d of the cluster block 52. The mounting wall portion 59 has a pair of flat plate-like standing walls 591 that are erected from the outer surface of the second wall portion 52d, and a flat plate-like connection wall 592 that connects the tip portions of the pair of standing walls 591 to each other. . The pair of standing walls 591 extend in parallel to each other. The outer surface of the second wall portion 52d, the inner surfaces of the pair of standing walls 591, and the inner surface of the connection wall 592 form a claw portion insertion hole 59a into which the claw portion 391 is inserted. Therefore, the attachment wall 59 forms a claw insertion hole 59a. The claw portion insertion hole 59a of the present embodiment penetrates in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55.

  As shown in FIGS. 17 to 19, the cluster block 52 and the second insulator 32 are connected to each other by inserting a claw portion 391 into a claw portion insertion hole 59 a formed by the attachment wall portion 59.

  As a method of connecting the cluster block 52 to the second insulator 32, first, one of the openings of the claw portion insertion hole 59 a is engaged with the engagement piece of the claw portion 391 in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55. The cluster block 52 is arranged inside the second insulator 32 so as to face the 392. Next, the cluster block 52 is moved with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted and removed with respect to the conductive member insertion hole 55 so that the attachment wall portion 59 approaches the claw portion 391. Then, the mounting wall portion 59 is guided toward the groove portion 39 by the guide portion 392 a of the locking piece 392 of the claw portion 391, and the claw portion 391 is elastically deformed toward the radially inner side of the base portion 33. Then, when the mounting wall portion 59 gets over the locking piece 392, the claw portion 391 is inserted into the claw portion insertion hole 59a. The claw portion 391 that has been elastically deformed toward the inside in the radial direction of the base portion 33 is inserted into the claw portion insertion hole 59a, and then returns to the original position before elastic deformation.

  In the direction in which the conductive member 41 is inserted into and extracted from the conductive member insertion hole 55, the distance between the bottom 39 b of the groove 39 of the second insulator 32 and the locking piece 392 is longer than the dimension of the connection wall 592 of the cluster block 52. Therefore, the cluster block 52 and the second insulator 32 are relatively movable while being connected to each other. The bottom 39 b of each groove 39 of the second insulator 32 is positioned on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to each standing wall 591 of the mounting wall 59 of the cluster block 52. Each standing wall 591 is opposed to the bottom 39 b of each groove 39 in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55. Thereby, the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted.

  The insulator side flange 35 of the second insulator 32 is located between the coil 28 and the cluster block 52 in the radial direction of the rotating shaft 16. The second wall portion 52 d of the cluster block 52 faces the inner peripheral surface 35 a of the insulator side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. That is, the cluster block 52 is disposed inside the second insulator 32 in the radial direction of the rotating shaft 16. In the axial direction of the rotating shaft 16, one of the pair of flat walls 52 a of the cluster block 52 is located on the motor drive circuit 20 side, and the other is located on the rotor 22 side. A gap is provided between the cluster block 52 and the rotor 22 in the axial direction of the rotary shaft 16.

Next, effects of the fourth embodiment will be described together with actions.
(4-1) The cluster block 52 and the second insulator 32 are coupled so as to be relatively movable by inserting the claw portion 391 into the claw portion insertion hole 59a. In a state where the cluster block 52 and the second insulator 32 are connected, the second wall portion 52d of the cluster block 52 is connected to the inner peripheral surface 35a of the insulator-side flange portion 35 of the second insulator 32 in the radial direction of the rotating shaft 16. Opposite. For this reason, the cluster block 52 is located inside the second insulator 32 in the radial direction of the rotating shaft 16. Therefore, as compared with the case where the cluster block is arranged adjacent to the coil in the axial direction of the rotating shaft as in the prior art, the second insulator 32 is opposite to the stator core 23 in the axial direction of the rotating shaft 16. The part which protrudes from an edge part is reduced. As a result, the increase in size of the electric compressor 10 in the axial direction of the rotating shaft 16 can be suppressed.

  Further, when the conductive member 41 is to be inserted into the conductive member insertion hole 55 in a state where the cluster block 52 is connected to the second insulator 32, the cluster block 52 is inserted in the conductive member insertion hole 55. Try to move on. Specifically, when the conductive member 41 is to be inserted into the conductive member insertion hole 55, the connection terminal 51 moves in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55, and the accommodating portion 53 of the cluster block 52 is moved. It is pressed against the inner wall. Then, when the insertion of the conductive member 41 into the conductive member insertion hole 55 is continued in a state where the connection terminal 51 is pressed against the inner wall of the cluster block 52, the cluster block 52 causes the conductive member 41 to be inserted into the conductive member insertion hole 55. Try to move in the direction of insertion.

  At this time, the bottom portions 39b of the respective groove portions 39 are located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion holes 55 with respect to the respective standing walls 591 of the mounting wall portion 59. The bottom 39 b of each groove 39 receives a load from the cluster block 52. As a result, the movement of the cluster block 52 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. As a result, the conductive member 41 can be easily inserted into the conductive member insertion hole 55. Further, it is possible to restrict the cluster block 52 from being detached from the second insulator 32. From the above, it is possible to restrict the movement of the cluster block 52 when the conductive member 41 is inserted into the conductive member insertion hole 55 while suppressing the enlargement of the rotating shaft 16 in the axial direction.

  (4-2) The inner side surface 39a of the groove portion 39 also serves as the side surface of the claw portion 391, and the bottom portion 39b of the groove portion 39 also serves as a restriction portion that restricts the movement of the cluster block 52 relative to the second insulator 32. Therefore, the configuration of the second insulator 32 can be simplified as compared with the case where the restricting portion is provided in the insulator side flange 35 different from the insulator side flange 35 provided with the groove 39.

  (4-3) The claw portion 391 is formed by the inner side surface 39a of the groove portion 39 provided in the insulator side flange portion 35. For this reason, the nail | claw part 391 can be provided, without changing the shape of the insulator side collar part 35 which is the existing structure in the 2nd insulator 32. FIG. Further, the end portion of the claw portion 391 that is located on the direction side in which the conductive member 41 is inserted into the conductive member insertion hole 55 is located at the bottom portion 39 b of the groove portion 39. For this reason, compared with the case where the edge part located in the direction side which inserts the electrically-conductive member 41 in the nail | claw part 391 in the electrically-conductive-member insertion hole 55 is located in the front end surface 35c of the insulator side collar part 35, for example, a cluster block 52 is disposed closer to the stator core 23 in the axial direction of the rotary shaft 16. Therefore, in the cluster block 52, the portion of the second insulator 32 that protrudes from the end opposite to the stator core 23 in the axial direction of the rotating shaft 16 is reduced. As a result, the enlargement of the electric compressor 10 in the axial direction of the rotating shaft 16 can be further suppressed.

  (4-4) Even when the cluster block 52 tries to move in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55, the locking piece 392 of the claw portion 391 is more conductive than the connection wall 592 of the attachment wall portion 59. Since the conductive member 41 is located on the side where the conductive member 41 is pulled out from 55, the connection wall 592 contacts the locking piece 392, and the locking piece 392 receives a load from the cluster block 52. For this reason, the movement of the cluster block 52 in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is suppressed. Therefore, it is possible to prevent the cluster block 52 from being detached from the second insulator 32.

  (4-5) In the state where the cluster block 52 is connected to the second insulator 32, when an assembly failure occurs or maintenance is performed, if the conductive member 41 is pulled out from the conductive member insertion hole 55, the cluster block 52 tries to move in the direction of pulling out the conductive member 41 from the conductive member insertion hole 55. At this time, the connection wall 592 of the mounting wall portion 59 contacts the locking piece 392 of the claw portion 391, and the locking piece 392 receives a load from the cluster block 52. Thereby, the movement of the cluster block 52 in the direction in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is suppressed. As a result, it is possible to prevent the cluster block 52 from being detached from the second insulator 32 when the conductive member 41 is pulled out from the conductive member insertion hole 55.

  (4-6) The locking piece 392 of the claw portion 391 has a guide portion 392a. When the cluster block 52 is connected to the second insulator 32, the mounting wall 59 of the cluster block 52 is guided toward the groove 39 by the guide 392a, so that the claw 391 can be easily inserted into the claw insertion hole 59a. Become. Therefore, it becomes easy to connect the cluster block 52 to the second insulator 32.

  (4-7) In a state where the cluster block 52 and the second insulator 32 are connected, the movement of the cluster block 52 relative to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 is restricted. Therefore, a gap exists between the cluster block 52 and the rotor 22 in the axial direction of the rotating shaft 16. Therefore, rotation failure of the rotor 22 and damage to the cluster block 52 due to contact between the rotor 22 and the cluster block 52 can be suppressed.

In addition, you may change each said embodiment as follows.
In each of the above embodiments, the inner peripheral surface 35a as the peripheral surface on the rotor 22 side in the second insulator 32 is not limited to a curved surface, and may be a flat surface.

  In the first embodiment, the tip surface 35c, which is a part of the insulator-side flange 35, also serves as a restricting portion, but the insulator is different from the insulator-side flange 35 to which the claw portion 56 of the cluster block 52 is attached. A regulating portion may be provided on the side flange portion 35. For example, the restricting portion may be a protruding portion that protrudes from the inner peripheral surface 35a of the insulator-side flange portion 35. In a state where the second insulator 32 and the cluster block 52 are connected, the protrusion is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the cluster block 52.

  ○ In the second embodiment, the connection wall 372 that is a part of the mounting wall portion 37 also serves as the restricting portion, but the insulator side flange portion 35 is different from the insulator side flange portion 35 provided with the mounting wall portion 37. You may provide a control part. For example, the restricting portion may be a protruding portion that protrudes from the inner peripheral surface 35a of the insulator-side flange portion 35. In a state where the second insulator 32 and the cluster block 52 are connected, the protrusion is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the cluster block 52.

  In the third embodiment, the inner side surface 38a of the groove portion 38 also serves as the side surface of the claw portion 381, and the bottom portion 38b of the groove portion 38 also serves as the regulating portion. However, the insulator side flange portion 35 provided with the groove portion 38 May be provided with a restricting portion in another insulator side flange portion 35. For example, the restricting portion may be a protruding portion that protrudes from the inner peripheral surface 35a of the insulator-side flange portion 35. In a state where the second insulator 32 and the cluster block 52 are connected, the protrusion is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the cluster block 52.

  In the fourth embodiment, the inner side surface 39a of the groove portion 39 also serves as the side surface of the claw portion 391, and the bottom portion 39b of the groove portion 39 also serves as the regulating portion, but the insulator side flange portion 35 provided with the groove portion 39 May be provided with a restricting portion in another insulator side flange portion 35. For example, the restricting portion may be a protruding portion that protrudes from the inner peripheral surface 35a of the insulator-side flange portion 35. In a state where the second insulator 32 and the cluster block 52 are connected, the protrusion is located on the side of the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55 with respect to the cluster block 52.

  In 3rd Embodiment, the depth of the two groove parts 38 in the direction which inserts / extracts the electrically-conductive member 41 with respect to the electrically-conductive member insertion hole 55 may differ. In this case, the bottom portion 38b of the groove portion 38 having the shallower depth becomes the restricting portion.

  In 4th Embodiment, the depth of the two groove parts 39 in the direction which inserts / extracts the electrically-conductive member 41 with respect to the electrically-conductive member insertion hole 55 may differ. In this case, the bottom portion 39b of the groove portion 39 having the shallower depth is the restricting portion.

In the second embodiment, the locking piece 573 may not be provided with the guide portion 573a but may be planar.
In the third embodiment, the locking piece 382 may not be provided with the guide portion 382a and may be planar.

In the fourth embodiment, the locking piece 392 may not be provided with the guide portion 392a and may be planar.
In the second embodiment, the locking piece 573 of the claw portion 57 may be omitted.

In the third embodiment, the locking piece 382 of the claw portion 381 may be omitted.
In the fourth embodiment, the locking piece 392 of the claw portion 391 may be omitted.
In the first embodiment, the number of claw portions 56 formed in the cluster block 52 may be two or more.

In the second embodiment, the number of the claw portions 57 formed in the cluster block 52 and the number of the attachment wall portions 37 formed in the second insulator 32 may be two or more, respectively.
In the third embodiment, the number of the claw portions 381 formed on the second insulator 32 and the number of the attachment wall portions 58 formed on the cluster block 52 may be one, or may be three or more. For example, when three claw portions 381 formed on the second insulator 32 are formed and three attachment wall portions 58 are formed on the cluster block 52, each claw portion 381 is inserted into the claw portion of each attachment wall portion 58. It is good also as a structure inserted in the hole 58a.

  In the fourth embodiment, the number of claw portions 391 formed on the second insulator 32 and the number of attachment wall portions 59 formed on the cluster block 52 may be two or more, respectively.

  In the second embodiment, when the locking piece 573 is not formed on each claw portion 57, it is located on the side opposite to the standing portion 571 in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55. The opening part of the nail | claw part insertion hole 37a may be obstruct | occluded.

  ○ In the third embodiment, when the engaging piece 382 is not formed on the claw portion 381, the opening portion of the claw portion insertion hole 58a located on the side in which the conductive member 41 is pulled out from the conductive member insertion hole 55 is blocked. It may be.

  In the fourth embodiment, when the claw portion 391 is not formed with the locking piece 392, the claw portion 391 is positioned on the side opposite to the bottom 39b of the groove portion 39 in the direction in which the conductive member 41 is inserted into and removed from the conductive member insertion hole 55. The opening of the claw portion insertion hole 59a to be closed may be closed.

  In the fourth embodiment, the claw portion 391 does not have to extend from the bottom portion 39b of the groove portion 39. For example, the claw portion 391 may extend from the distal end surface 35 c of the insulator side flange portion 35.

  In the above embodiments, the shape of the cluster block 52 may be changed as appropriate. For example, the first wall 52c may be a curved surface instead of a flat surface, the second wall 52d may be a flat surface instead of a curved surface, or the third wall 52e may be Instead of a stepped shape, it may be a planar shape.

  In each of the above embodiments, the electric motor 18 may be an outer rotor type electric motor including a cylindrical stator and a rotor disposed outside the stator. Even in this case, the cluster block 52 and the second insulator 32 have engaging portions that connect each other so as to be relatively movable. The second insulator 32 has a restricting portion that restricts the movement of the cluster block 52 with respect to the second insulator 32 in the direction in which the conductive member 41 is inserted into the conductive member insertion hole 55. The cluster block 52 faces the outer peripheral surface of the base 33 that is the peripheral surface of the second insulator 32 on the rotor 22 side in the radial direction of the rotating shaft 16. That is, the cluster block 52 is disposed outside the second insulator 32 in the radial direction of the rotating shaft 16.

In each of the above embodiments, the number of phases of the coil 28 may be changed.
In each of the above embodiments, the coil 28 may be formed by winding a conductive wire around the tooth 25 and the extending portion 34 with distributed winding.

  In each of the above embodiments, the compression unit 17, the electric motor 18, and the motor drive circuit 20 may not be arranged along the axis L of the rotating shaft 16 in this order. For example, the inverter cover 14 is attached to the peripheral wall 122 of the motor housing 12, and a space defined by the peripheral wall 122 of the motor housing 12 and the inverter cover 14 is defined as a storage space S2, and the motor drive circuit 20 is provided in the storage space S2. It may be accommodated.

  In each of the above embodiments, the compression unit 17 is not limited to the type constituted by the fixed scroll 17a and the movable scroll 17b, and may be changed to, for example, a piston type or a vane type.

DESCRIPTION OF SYMBOLS 10 ... Electric compressor, 16 ... Rotating shaft, 17 ... Compression part, 18 ... Electric motor, 20 ... Motor drive circuit, 21 ... Stator, 22 ... Rotor, 23 ... Stator core, 28 ... Coil, 28a ... Motor wiring, 32 ... 2nd insulator as an insulator, 35 ... Insulator side flange as a flange (engagement portion), 35a ... Inner peripheral surface as a peripheral surface, 35c ... End surface as an end surface, 37 ... Mounting wall as an engagement portion Part, 372 ... connecting wall as a restricting part, 38 ... groove part, 38a ... inner surface, 38b ... bottom part, 381 ... claw part as engaging part, 39 ... groove part, 39a ... inner side surface, 39b ... bottom part, 391 ... engagement Claw portion as a joint portion, 41... Conductive member, 52... Cluster block, 55 .. conductive member insertion hole, 56, 57 .. claw portion as engagement portion, 58, 59.

Claims (5)

A rotation axis;
An electric motor for rotating the rotating shaft;
A compression section that is driven by the rotation of the rotation shaft to compress the refrigerant;
A motor drive circuit for driving the electric motor;
A conductive member electrically connected to the motor drive circuit;
An insulating cluster block in which a conductive member insertion hole into which the conductive member is inserted is formed, and a motor wiring drawn out from the electric motor and the conductive member are electrically connected inside,
With
The electric motor includes a rotor that can rotate integrally with the rotating shaft, and a stator.
The stator is an electric compressor having an annular stator core, an annular insulator disposed on an end face of the stator core, and a coil wound around the stator core and the insulator.
The cluster block and the insulator have engaging portions that connect each other so as to be relatively movable,
The insulator has a restricting portion that restricts movement of the cluster block with respect to the insulator in a direction in which the conductive member is inserted into the conductive member insertion hole.
The electric compressor according to claim 1, wherein the cluster block faces a circumferential surface on the rotor side of the insulator in a radial direction of the rotating shaft.   The electric compressor according to claim 1, wherein the restricting portion is provided in the engaging portion. The insulator has a flange that contacts the coil,
The flange portion is located between the coil and the cluster block in the radial direction of the rotating shaft,
The electric compressor according to claim 1, wherein the restricting portion is an end surface of the flange portion opposite to the stator core in the axial direction of the rotating shaft. The insulator has a flange that contacts the coil,
The flange portion is located between the coil and the cluster block in the radial direction of the rotating shaft,
The flange portion includes two groove portions that are recessed from the end surface opposite to the stator core in the axial direction of the rotating shaft toward the stator core side,
The two groove portions are positioned so as to be aligned in the circumferential direction of the rotation shaft,
The engaging portion is a portion sandwiched between the two groove portions and formed by an inner surface of the two groove portions,
The electric compressor according to claim 1, wherein the restricting portion is a bottom portion of at least one of the two groove portions. The insulator has the two flanges,
The two flanges are positioned so as to be aligned in the circumferential direction of the rotating shaft,
The electric compressor according to claim 4, wherein each of the two flange portions has one of the two groove portions.