Wire harness block, motor, electric compressor, air conditioning device, refrigerator, and in-vehicle device

Abstract

The invention provides a wire harness block, a motor, an electric compressor, an air conditioner, a refrigerator and a vehicle-mounted device, which can ensure the insulation distance between connecting terminals and is easy to miniaturize. At least a portion of an inner wall portion that defines a plurality of separate spaces (S1-S3) that individually house the plurality of connection terminals (61-63) is formed by overlapping first inner walls (86, 87) that rise from the first plate portion (81) and second inner walls (96, 97) that rise from the second plate portion (91). In the overlapped part, the insulation distance between the adjacent connection terminals (61-63) is not a straight line, but detours between the first inner walls (86, 87) and the second inner walls (96, 97), so that the insulation distance can be ensured. By securing the insulation distance, the individual spaces (S1 to S3) can be easily brought close to each other, and the wire harness block (70) can be easily miniaturized.

Description

TECHNICAL FIELD

[0001] The present application relates to a cluster block capable of securing an insulation distance between connection terminals and being downsized, a motor equipped with the cluster block, an electric compressor provided with the cluster block, and an air conditioning device, a refrigerator, and a vehicle-mounted device equipped with the electric compressor. BACKGROUND

[0002] An electric compressor mounted on an air conditioning device, a refrigerator, a vehicle-mounted device, or the like mainly includes a compression section that compresses a fluid, a motor that drives the compression section, a control circuit that performs drive control of the motor, a plurality of motor wirings that are drawn from the motor, a plurality of connection terminals that are respectively provided at the distal ends of the plurality of motor wirings and are electrically connected to counterpart terminals on the control circuit side, and a cluster block that houses the connection terminals in an insulating manner.

[0003] The cluster block 40 disclosed in Patent Document 1 is composed of two members, a housing member 50 having three housing chambers 55 (separate spaces) that are open at the top and a cover member 60 that overlaps the housing member 50 in a manner of closing the top openings of the housing chambers 55. The connection terminals 41 are individually housed in the three housing chambers 55, respectively.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT DOCUMENTS

[0006] Patent Document 1: Japanese Patent Application Publication No. 2018-168833 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] In the technology disclosed in Patent Document 1, if the three housing chambers 55 are brought close to each other in order to facilitate downsizing of the cluster block 40 or the like, the insulation distance between the connection terminals 41 is insufficient, and thus there is a technical problem in that the cluster block 40 is difficult to downsize.

[0009] The present application has been achieved in order to solve the above-described technical problem, and aims to provide a cluster block capable of securing an insulation distance between connection terminals and being easily downsized, a motor equipped with the cluster block, an electric compressor provided with the cluster block, and an air conditioning device, a refrigerator, and a vehicle-mounted device equipped with the electric compressor.

[0010] MEANS FOR SOLVING THE PROBLEMS

[0011] To achieve the object, the wire harness block of the present application is an insulating wire harness block provided in an electric compressor including a compression unit that compresses a fluid, a motor that drives the compression unit, a control circuit that performs drive control of the motor, a plurality of motor wires that are drawn from the motor, and a plurality of connection terminals that are respectively provided at the ends of the plurality of motor wires and are electrically connected to counterpart terminals on the control circuit side, wherein the wire harness block includes a first plate portion and a second plate portion that sandwich the plurality of connection terminals and face each other, an outer peripheral wall that links an outer peripheral portion of the first plate portion and an outer peripheral portion of the second plate portion and forms an accommodation space between the first plate portion and the second plate portion, and one or a plurality of inner wall portions that divide the accommodation space into a plurality of individual spaces that individually accommodate the plurality of connection terminals, the inner wall portions including a first inner wall that stands from the first plate portion toward the second plate portion and a second inner wall that stands from the second plate portion toward the first plate portion, at least a portion of the inner wall portions being formed by overlapping the first inner wall and the second inner wall.

[0012] Effects of Invention

[0013] According to the wire harness block of the first aspect, at least a portion of the inner wall portions that divide the plurality of individual spaces that individually accommodate the plurality of connection terminals is formed by overlapping the first inner wall that stands from the first plate portion and the second inner wall that stands from the second plate portion. In the overlapping portion, the insulation distance between adjacent connection terminals is not a straight line but meanders between the first inner wall and the second inner wall, and thus the insulation distance can be ensured. By ensuring the insulation distance, the individual spaces can be easily brought close to each other, and thus the wire harness block can be easily downsized.

[0014] According to the wire harness block of the second aspect, in addition to the effects achieved by the wire harness block of the first aspect, the following effects are achieved. The motor wires are formed by covering the conductive wires with insulating cover portions. The connection terminals include a cylindrical connection portion that covers the cover portion, a terminal portion that is connected to the counterpart terminal, and a link portion that links between the terminal portion and the connection portion and is formed to be lower toward the second plate portion side with respect to the terminal portion. The inner wall portion at a position adjacent to the higher terminal portion is formed by overlapping the first inner wall and the second inner wall, and thus the insulation distance can be ensured as described above.

[0015] In contrast, the inner wall portion between the link portions is formed only by the second inner wall. Since the second inner wall stands from the second plate portion to a position higher than the link portion, the insulation distance between the link portions can be ensured by meandering in the second inner wall even without overlapping the first inner wall. In addition, by partially omitting the overlapping of the first inner wall and the second inner wall, the wire harness block can be easily downsized and lightened, or the amount of use of raw materials for the wire harness block can be easily reduced.

[0016] According to the wire harness block of the third aspect, in addition to the effects achieved by the wire harness block of the second aspect, the following effects are achieved. The connection portion is formed so as to be lower toward the second plate portion side with respect to the terminal portion, similarly to the link portion. The adjacent individual spaces are arranged so as to be staggered with respect to each other in a manner in which the connection portion in one individual space is adjacent to the link portion in the other individual space. The inner wall portion between the connection portion and the link portion is formed only by the second inner wall. Even in this case, since the second inner wall stands up from the second plate portion to a position higher than the connection portion and the link portion, the insulation distance between the connection portion and the link portion can be ensured similarly to between the link portions. Further, the portion in which the first inner wall and the second inner wall overlap can be enlarged, and the wire harness block can be more easily downsized, and the like.

[0017] According to the wire harness block of the fourth aspect, in addition to the effects achieved by the wire harness block of the second aspect, the following effects are achieved. The outer peripheral wall has a first outer wall that stands up from the first plate portion toward the second plate portion and is continuous with the first inner wall, and the terminal end abuts against the second plate portion side. In the direction in which the first plate portion and the second plate portion face each other, the terminal end of the first outer wall is positioned at a position on the second plate portion side further than the center of the terminal portion of the connection terminal that contacts the first plate portion. That is, the first outer wall is formed higher with respect to the terminal portion. When assembling the wire harness block in which the connection terminal is sandwiched between the first plate portion and the second plate portion, by housing the connection terminal to the portion surrounded by the first outer wall and the first inner wall, the connection terminal can be stably held on the first plate portion side by the high first outer wall. Further, since the first inner wall that surrounds the connection terminal is partially omitted, the work of housing the connection terminal to the portion surrounded by the first outer wall and the first inner wall, and the work of taking out the connection terminal can be easily performed.

[0018] The electric motor of the fifth aspect is equipped with the wire harness block of any one of the first aspect to the fourth aspect, thereby achieving the effects achieved by the wire harness block. In addition, the electric compressor of the sixth aspect, the air conditioning device of the seventh aspect, the refrigerator of the eighth aspect, and the vehicle-mounted device of the ninth aspect each include the wire harness block of any one of the first aspect to the fourth aspect, thereby achieving the effects achieved by the wire harness block. BRIEF DESCRIPTION OF DRAWINGS

[0019] FIG. 1A is a block diagram that schematically shows a vehicle equipped with the electric compressor in the first embodiment.

[0020] FIG. 1B is a cross-sectional view that schematically shows the electric compressor.

[0021] FIG. 2 is a cross-sectional view that schematically shows the electric compressor. FIG. 1B is a semi-cross-sectional view of the electric compressor at the II-II line of

[0022] FIG. 3is a perspective view of an electric compressor, which is enlarged to show the vicinity of a connector including a wire harness block.

[0023] FIG. 4 is an exploded perspective view of the connector viewed from the upper side.

[0024] FIG. 5 is an exploded perspective view of the connector viewed from the lower side.

[0025] FIG. 6A is FIG. 2 a sectional view of the connector at the line VIa-VIa of

[0026] FIG. 6B is FIG. 6A a sectional view of the connector at the line VIb-VIb of

[0027] FIG. 7A is FIG. 2 a sectional view of the connector at the line VIIa-VIIa of

[0028] FIG. 7B is FIG. 2 a sectional view of the connector at the line VIIb-VIIb of

[0029] FIG. 8A is a plan view of an electric compressor in a second embodiment.

[0030] FIG. 8B is a perspective view of a connector.

[0031] FIG. 9A is a perspective view of a wire harness block in a third embodiment.

[0032] FIG. 9B is a perspective view of a wire harness block in a fourth embodiment.

[0033] FIG. 10A is a block diagram schematically showing an air conditioning device on which an electric compressor is mounted.

[0034] FIG. 10B is a block diagram schematically showing a refrigerator on which an electric compressor is mounted.

[0035] FIG. 11A is a plan view of a wire harness block in a modification.

[0036] FIG. 11B is a bottom view of a wire harness block in a modification. DETAILED DESCRIPTION

[0037] Hereinafter, a preferred embodiment will be described with reference to the drawings. FIG. 1Ais a block diagram schematically showing a vehicle 1 equipped with the air conditioner 10 in which the electric compressor 11 of the first embodiment is mounted. FIG. 1B is a cross-sectional view schematically showing the electric compressor 11. In FIG. 1B , hatching of a part (the rotor 31, the stator 40, and the like) of the electric compressor 11 is omitted for simplification of the drawing.

[0038] As shown in FIG. 1A and FIG. 1B , the air conditioner 10 (an in-vehicle device) of the vehicle 1 is a device for delivering cool air generated by the electric compressor 11 to an in-vehicle space of the vehicle 1. The electric compressor 11 mainly includes a compression unit 20, an electric motor 30, and an accumulator 12. The compression unit 20 and the electric motor 30 are arranged in a hermetic container 13. The hermetic container 13 is provided with a suction pipe 15 and a discharge pipe 16 that communicate the inside and outside of the hermetic container 13.

[0039] The accumulator 12 is used to separate a cooling medium (for example, a cooling gas) as a fluid from lubricating oil. The cooling medium separated by the accumulator 12 is returned to the compression unit 20 via the suction pipe 15. In addition, the lubricating oil separated by the accumulator 12 is returned to a lubricating oil tank in the hermetic container 13. Note that the air conditioner 10 can also be provided with a liquid reservoir that stores the compressed cooling medium in advance, together with the accumulator 12 or instead of the accumulator 12.

[0040] The compression unit 20 includes a rotary shaft 21, a rotating scroll 22 that is driven by the electric motor 30 via the rotary shaft 21, and a fixed scroll 23 that is fixed to the hermetic container 13. The rotary shaft 21 is a rod-shaped member that rotates around an axis C that is the axis of the rotary shaft 21. The compression unit 20 rotates by rotating the rotating scroll 22 around the axis C, and compresses the cooling medium sucked from the suction pipe 15 between the spiral-shaped blades provided in the rotating scroll 22 and the spiral-shaped blades provided in the fixed scroll 23 in a meshing manner with the blades. Hereinafter, the axial direction of the axis C will be referred to as the "axis C direction", the direction orthogonal to the axis C will be referred to as the "radial direction", and the direction around the axis C will be referred to as the "circumferential direction".

[0041] The cooling medium compressed by the compression unit 20 is discharged from the discharge pipe 16. In the electric compressor 11 of the present embodiment, the medium in which the cooling medium and the lubricating oil are mixed is discharged from the discharge pipe 16. Note that the compression unit 20 is not limited to the scroll type as described above, and can be a reciprocating type, a rotary type, a screw type, or the like.

[0042] The electric motor 30 includes a cylindrical stator 40 fixed to the hermetic container 13 and a cylindrical rotor 31 arranged on the inner peripheral side of the stator 40. The rotor 31 covers the axis C, and the stator 40 covers the rotor 31.

[0043] The rotor 31 has a cylindrical rotor core 32 formed by stacking a plurality of thin plate-shaped electromagnetic steel sheets in the axial direction of the shaft C, and a plurality of permanent magnets 33 embedded in the rotor core 32. The rotating shaft 21 is inserted into the inner peripheral side of the rotor core 32 and is fixed to the rotor core 32 by press-fitting, shrink-fitting, or the like. The plurality of permanent magnets 33 are disposed rotationally symmetrically around the shaft C. Note that the permanent magnets 33 can be embedded so as to be exposed to the outer peripheral surface of the rotor core 32, or can be embedded so as not to be exposed.

[0044] FIG. 2 is a half sectional view of the electric compressor 11 at the II-II line of FIG. 1B Specifically, FIG. 2 is a right half of the electric compressor 11 shown in a sectional view, and a left half is shown in a plan view. Also, in FIG. 2 , illustration of the accumulator 12, the closed container 13, the compression part 20, the rotor 31, the control circuit 56, and the like is omitted FIG. 3 is the same).

[0045] As shown in FIG. 1B and FIG. 2 , the stator 40 mainly has a cylindrical stator core 41 fixed to the inner peripheral surface of the closed container 13, cylindrical coil bobbins 42 respectively arranged at the axial end surfaces 41a of both sides of the stator core 41, and coils 43 wound around the coil bobbins 42 and the stator core 41.

[0046] The stator core 41 is formed by stacking a plurality of thin plate-shaped electromagnetic steel sheets in the axial direction of the shaft C. Also, the stator core 41 can be formed in a cylindrical shape using an annular electromagnetic steel sheet continuous in the circumferential direction, or can be formed in a cylindrical shape by joining a plurality of electromagnetic steel sheets divided in the circumferential and radial directions. The stator core 41 has a cylindrical yoke portion 41b forming the outer peripheral portion of the stator core 41, and a plurality of tooth portions 41c protruding toward the shaft C from the inner peripheral surface of the yoke portion 41b. The inner peripheral end portion 41d of the tooth portion 41c on the rotor 31 side extends to both sides in the circumferential direction.

[0047] The plurality of tooth portions 41c are identical in shape to each other and are arranged at equal intervals in the circumferential direction. A plurality of slots are formed by the gaps between the tooth portions 41c adjacent in the circumferential direction. In the present embodiment, the number of the tooth portions 41c and the number of the slots are each nine, but can be changed as appropriate.

[0048] The coil 43 is inserted into the slot in a concentrated winding manner. The coil 43 is not limited to the concentrated winding manner, but can be in a distributed winding manner. In addition, in order to prevent the coil 43 from directly contacting the inner circumferential surface of the yoke portion 41b, the circumferential surfaces of the tooth portions 41c, the outer circumferential surface of the inner circumferential end portion 41d, or the coils 43 wound around adjacent tooth portions 41c from contacting each other, a plurality of insulating buffer plates 44 are provided therebetween.

[0049] The coil holder 42 is an insulating member for preventing the coil 43 from directly contacting the axial end surface 41a of the stator core 41. The coil holder 42 can be integrally formed in the circumferential direction as with the stator core 41, or can be formed by joining a plurality of members divided in the circumferential and radial directions. The coil holder 42 includes a cylindrical outer cylinder wall portion 42a that stands up toward the axis C direction from the axial end surface 41a of the yoke portion 41b, a plurality of wall connecting portions 42b that extend toward the radially inner side along the tooth portions 41c from the lower portion of the outer cylinder wall portion 42a, and a plurality of inner circumferential wall portions 42c that stand up toward the axis C direction from the radially inner side end portions of the wall connecting portions 42b.

[0050] The plurality of wall connecting portions 42b are identical in shape to each other and are arranged at equal intervals in the circumferential direction. The plurality of inner circumferential wall portions 42c are also identical in shape to each other and are arranged at equal intervals in the circumferential direction. The number of the wall connecting portions 42b and the number of the inner circumferential wall portions 42c are the same as the number of the tooth portions 41c. The wall connecting portions 42b are disposed at the axial end surface 41a of the tooth portions 41c and the inner circumferential end portion 41d, and are formed so that the circumferential width is substantially the same as the tooth portions 41c excluding the inner circumferential end portion 41d. The inner circumferential wall portions 42c are positioned above the inner circumferential end portion 41d, and are formed so that the circumferential width of the inner circumferential wall portions 42c is substantially the same as the circumferential width of the inner circumferential end portion 41d.

[0051] The axial end surface 42e on the side opposite to the stator core 41 of the inner circumferential wall portion 42c is positioned at a lower position toward the stator core 41 side with respect to the axial end surface 42d on the side opposite to the stator core 41 of the outer cylinder wall portion 42a. In addition, a portion of the coil 43 is housed in a portion surrounded by the outer cylinder wall portion 42a, the wall connecting portions 42b, and the inner circumferential wall portions 42c.

[0052] The coil 43 is formed by winding a wire. The coil 43 exists in three types of U phase, V phase, and W phase. One motor wire 51, 52, 53 is drawn from each phase of the coil 43. Note that the motor wires 51 to 53 are formed by covering the wires 51a, 52a, 53a with cover portions 51b, 52b, 53b made of an insulating elastic body, respectively (see FIG. 6). FIG. 6A .

[0053] The motor wires 51 to 53 are electrically connected to a control circuit 56 via a connector 55. FIG. 1BThe axial end surfaces 42d, 42e of the coil holder 42 on the paper surface upper side, and are disposed on a part of the circumferential direction with respect to the cylindrical coil holder 42. The motor wirings 51 to 53, which are protruded from the connector 55 and are directed toward the motor 30, are curved along the circumferential direction around the shaft C.

[0054] The control circuit 56 is disposed in a space 57, which is a space obtained by dividing a space in the sealed container 13 with respect to the space in which the motor 30 is disposed, using a partition wall portion 57a. The partition wall portion 57a is provided at a position opposite to the connector 55 in the axial direction of the shaft C. Note that the space 57 can also be provided outside the sealed container 13, and a part of the outer wall of the sealed container 13 can be used as the partition wall portion 57a.

[0055] Three mating terminals 56a, 56b, 56c corresponding to the U-phase, the V-phase, and the W-phase, respectively, protrude from the control circuit 56. The mating terminals 56a to 56c are cylindrical metal terminals that are electrically connected to the control circuit 56. The mating terminals 56a to 56c penetrate the partition wall portion 57a and protrude toward the inside of the space in which the motor 30 is disposed. By connecting the tips of the three mating terminals 56a to 56c to the connector 55, respectively, the mating terminals 56a to 56c are individually electrically connected to the motor wirings 51 to 53, respectively.

[0056] The control circuit 56 is an inverter that controls the current flowing to the coils 43 of the respective phases via the mating terminals 56a to 56c, the connector 55, and the motor wirings 51 to 53. The magnetic field for rotating the rotor 31 is generated by the current, and thus the motor 30 is driven and controlled.

[0057] Next, the connector 55 will be described in detail with reference to FIG. 3 to FIG. 7B The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. FIG. 1B The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. FIG. 1B The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. FIG. 2 The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. FIG. 2 The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. FIG. 2 The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. FIG. 2 The connector 55 will be described in detail. Note that in the following description of the connector 55, the control circuit 56 side (the paper surface upper side) is assumed to be the upper side of the connector 55, the axial end surfaces 42d, 42e side (the paper surface lower side) is assumed to be the lower side of the connector 55, the radial inner side of the shaft C (the paper surface right side) is assumed to be the right side of the connector 55, and the radial outer side of the shaft C (the paper surface left side) is assumed to be the left side of the connector 55, unless otherwise indicated. The motor wirings 51 to 53 protrude from the rear side of the connector 55. The arrow U direction, the arrow D direction, the arrow F direction, the arrow B direction, the arrow L direction, and the arrow R direction of each drawing are the upper side, the lower side, the front side, the rear side, the left side, and the right side of the connector 55, respectively.

[0058] FIG. 3 is an upper perspective view of the electric compressor 11, with the vicinity of the connector 55 enlarged. FIG. 4 is an exploded perspective view of the connector 55, viewed from the upper side (control circuit 56 side). FIG. 5 is an exploded perspective view of the connector 55, viewed from the lower side (coil stand 42 side). FIG. 6A is a cross-sectional view of the connector 55 at the line VIa-VIa of FIG. 2 FIG. 6B is a cross-sectional view of the connector 55 at the line VIb-VIb of FIG. 6A FIG. 7A is a cross-sectional view of the connector 55 at the line VIIa-VIIa of FIG. 2 FIG. 7B is a cross-sectional view of the connector 55 at the line VIIb-VIIb of FIG. 2 FIG. 3 In the drawing of FIG. 7A and FIG. 7B , the connection terminals 61 to 63 are schematically illustrated.

[0059] As shown in FIG. 3 and FIG. 4 , the connector 55 is provided with three connection terminals 61, 62, 63, and an insulating wire harness block 70 that houses the connection terminals 61 to 63 inside. The connection terminal 61 is a metal terminal provided at the end of the motor wire 51, and electrically connects the motor wire 51 with the counterpart terminal 56a. The connection terminal 62 is a metal terminal provided at the end of the motor wire 52, and electrically connects the motor wire 52 with the counterpart terminal 56b. The connection terminal 63 is a metal terminal provided at the end of the motor wire 53, and electrically connects the motor wire 53 with the counterpart terminal 56c.

[0060] The connection terminals 61 to 63 are formed to extend in the front-rear direction (circumferential direction around the shaft C), and are arranged in the order of the connection terminals 61, 62, 63 toward the right (radial inner side of the shaft C). The connection terminals 61 to 63 are each provided with a cylindrical connection portion 61a, 62a, 63a that covers the motor wire 51 to 53, a terminal portion 61b, 62b, 63b that connects with the counterpart terminal 56a to 56c, respectively, and a link portion 61c, 62c, 63c that links between the connection portion 61a to 63a and the terminal portion 61b to 63b.

[0061] ​​​​The connecting portions 61a to 63a are clamped and fixed to the outer peripheral surface of the covering portions 51b to 53b of the motor wiring 51 to 53 by means of a reduced diameter. The end portions 61b to 63b are formed into a box shape with a long front and back. The upper surface of the end portions 61b to 63b is open to receive the mating terminals 56a to 56c into the interior.

[0062] The connecting portions 61c to 63c are portions electrically connected to the wires 51a to 53a exposed from the covering portions 51b to 53b. The connecting portions 61c to 63c connect the lower portions of the connecting portions 61a to 63a to the lower portions of the end portions 61b to 63b in the front-rear direction. Therefore, the connecting portions 61c to 63c are formed to decrease in height relative to the upper ends of the connecting portions 61a to 63a and the upper ends of the end portions 61b to 63b. Similarly, the connecting portions 61a to 63a are formed to decrease in height relative to the upper ends of the end portions 61b to 63b. It should be noted that the portion of the connecting portions 61c to 63c that is stepped and recessed relative to the end portions 61b to 63b, gradually rising and sloping towards the end portions 61b to 63b, is part of the connecting portions 61c to 63c.

[0063] In addition, annular sealing members 54 are provided on the motor wiring 51-53 near the connecting terminals 61-63. The sealing member 54 is an annular portion made of an elastic body that covers the entire circumference of the covering portions 51b-53b of the motor wiring 51-53. The inner circumferential surface of the sealing member 54 is in complete circumferential contact with the outer circumferential surface of the covering portions 51b-53b.

[0064] The wire harness block 70 is a box that overlaps on the axial end faces 42d and 42e of the coil frame 42 and is divided in the vertical direction (axis C direction) by a dividing surface. The part of the wire harness block 70 that is higher than the dividing surface is the first component 80, and the part that is lower than the dividing surface is the second component 90. The dividing surface on the side of the first component 80 is designated as dividing surface P1, and the dividing surface on the side of the second component 90 is designated as dividing surface P2.

[0065] like FIG. 4 and FIG. 5 As shown, the first component 80 includes: a first plate portion 81 forming the upper surface of the wire harness block 70; first outer walls 82, 83, 84, 85 rising from the outer periphery of the first plate portion 81 toward the second component 90; and first inner walls 86, 87 rising from the first plate portion 81 toward the second component 90 on the inner side of the first outer walls 82 to 85.

[0066] The first plate portion 81 is a substantially flat portion covering the upper side of the connection terminals 61 to 63. In the first plate portion 81, three circular insertion holes 81a are formed separately at positions covering the three terminal portions 61b to 63b. By inserting the counterpart terminals 56a to 56c into the insertion holes 81a, respectively, the counterpart terminals 56a to 56c are electrically connected to the terminal portions 61b to 63b, respectively.

[0067] The first outer wall 82 is a portion rising from the left edge portion in the outer periphery of the first plate portion 81. The first outer wall 83 is a portion rising from the right edge portion in the outer periphery of the first plate portion 81, and is opposed to the first outer wall 82 in the left-right direction. Between the opposed portions thereof, the connection terminals 61 to 63 are arranged in the left-right direction.

[0068] The first outer wall 84 is a portion rising from the front edge portion in the outer periphery of the first plate portion 81, and links the front edge portions of the first outer walls 82, 83 to each other. The first outer wall 84 is formed in a stepped shape by three terminal walls 84a and two end side walls 84b, and the terminals (front ends) of the terminal portions 61b to 63b of the connection terminals 61 to 63 abut on the inner surfaces of the three terminal walls 84a, respectively, and the two end side walls 84b link the terminal walls 84a to each other in the front-back direction.

[0069] The three terminal walls 84a are arranged so as to be shifted forward more on the right side. The leftmost terminal wall 84a and the end side wall 84b are linked by an inclined portion 84c which obliquely fills the corner portions thereof. The claw portion 80a protrudes from the outer surface of the inclined portion 84c, the outer surface of the rightmost terminal wall 84a, and the outer surfaces of the rear sides of the first outer walls 82, 83.

[0070] Three hooking protrusions 81b protrude from the lower surface of the first plate portion 81, and are used to house the terminal portions 61b to 63b between the three hooking protrusions 81b and the three terminal walls 84a. The distance in the front-back direction between the hooking protrusions 81b and the terminal walls 84a is substantially the same as the length in the front-back direction of the terminal portions 61b to 63b. Thus, the terminal portions 61b to 63b (connection terminals 61 to 63) can be positioned in the front-back direction between the hooking protrusions 81b and the terminal walls 84a.

[0071] The first outer wall 85 is a portion that stands up from the rear edge portion in the outer peripheral portion of the first plate portion 81, links the rear edge portions of the first outer walls 82 and 83 to each other, and opposes the first outer wall 84 in the front-rear direction. The outer surface of the first outer wall 85 is formed in a stepped shape by three end surfaces 85a facing the rear and two side wall surfaces 85b linking the end surfaces 85a to each other in the front-rear direction, like the first outer wall 84. The three end surfaces 85a are arranged so as to be shifted more to the front as they are more to the right. In addition, in a state in which the first member 80 and the second member 90 are assembled, the three end surfaces 85a and the three end surfaces 95a provided to the second member 90 are continuous on the same surface.

[0072] Three communication grooves 85c that open at each end surface 85a are formed in the first outer wall 85 in a manner that is recessed in a U shape toward the upper side from the division surface PI (lower end of the first outer wall 85). The communication grooves 85c are portions that individually house the upper sides of the three motor wires 51 to 53, and also open at the inner surface of the first outer wall 85. A seal groove 85d that makes the communication groove 85c more deeply recessed in a U shape is formed in the middle of each communication groove 85c. The seal groove 85d is a portion that individually houses the upper sides of the three seal members 54, and restricts the housed seal members 54 from moving in the front-rear and left-right directions. The outer peripheral surface of the seal member 54 is in close contact with the seal groove 85d, and they are sealed from each other.

[0073] The first member 80 has three extension portions 88 that extend from each end surface 85a toward the rear, and three restriction portions 89 that extend from the extension portions 88 toward the lower side. The extension portion 88 has an extension groove 88a that extends the communication groove 85c toward the rear, and a pair of extension surfaces 88b and 88c that are provided to the left and right of the extension groove 88a and extend the division surface PI. Note that the left and right of the extension groove 88a refer to the radial directions of the communication holes described later that are formed by the communication grooves 85c that are continuous with the extension groove 88a.

[0074] The extension groove 88a is formed over the entire length in the front-rear direction of the extension portion 88. The extension surface 88b is a portion on the left side of the extension groove 88a. The extension surface 88c is a portion on the right side of the extension groove 88a. The restriction portion 89 is a portion that extends straight downward from the entire surface of the right-side extension surface 88c, and extends more downward than the division surface PI. The extension surface 88c is the boundary between the restriction portion 89 and the extension portion 88, and is covered by the restriction portion 89, so the extension surface 88c is shown by a broken line in FIG. 4

[0075] ​The space surrounded by the first plate portion 81 and the first outer walls 82 to 85 is a first housing space that houses the upper side of the connection terminals 61 to 63. The first inner walls 86, 87 are portions for dividing the first housing space into three first individual spaces SA1, SA2, SA3 that individually house the three connection terminals 61 to 63. The first individual space SA1 houses the connection terminal 61, the first individual space SA2 houses the connection terminal 62, and the first individual space SA3 houses the connection terminal 63. In addition, the three first individual spaces SA1 to SA3 individually communicate with the three communication grooves 85c.

[0076] The first inner wall 86 is provided between the first individual spaces SA1, SA2 and is formed so as to extend the left-side end side wall 84b rearward. The first inner wall 87 is provided between the first individual spaces SA2, SA3 and is formed so as to extend the right-side end side wall 84b rearward. The first inner walls 86, 87 are formed apart from the first outer wall 85, and the first individual spaces SA1 to SA3 communicate with each other at positions more rearward than the first inner walls 86, 87. The heights (up-down direction dimensions) of the first inner walls 86, 87 are substantially the same as the heights of the first outer walls 82 to 85, and the lower ends of the first inner walls 86, 87 and the division surface P1 are located on substantially the same plane.

[0077] The second member 90 includes a second plate portion 91 that forms the lower surface (bottom plate) of the wire harness block 70, second outer walls 92, 93, 94, 95 that rise from the outer peripheral portion of the second plate portion 91 toward the first member 80, and second inner walls 96, 97 that rise from the second plate portion 91 toward the first member 80 inside the second outer walls 92 to 95. Although the heights in the up-down direction are different, most of the second member 90 is formed in up-down symmetry with the first member 80.

[0078] The second plate portion 91 is a substantially flat portion that covers the lower side of the connection terminals 61 to 63 and is opposed to the first plate portion 81 in the up-down direction in a manner that sandwiches the connection terminals 61 to 63 therebetween. The second outer wall 92 is a portion that rises from the left edge portion of the outer peripheral portion of the second plate portion 91. The second outer wall 93 is a portion that rises from the right edge portion of the outer peripheral portion of the second plate portion 91 and is opposed to the second outer wall 92 in the left-right direction. Between the opposed portions thereof, the connection terminals 61 to 63 are arranged in the left-right direction.

[0079] The second outer wall 94 is a portion that stands up from the front edge portion in the outer peripheral portion of the second plate portion 91, and links the front edge portions of the second outer walls 92, 93 to each other. The second outer wall 94 is formed in a stepped shape like the first outer wall 84. Further, an inclined portion 94c that is symmetrical with the inclined portion 84c of the first member 80 is provided on the second outer wall 94. Like the claw portion 80a of the first member 80, a hooking portion 90a that is hooked to the claw portion 80a is provided on the outer surface of the inclined portion 94c, the outer surface of the right side of the second outer wall 94, and the outer surfaces of the rear sides of the second outer walls 92, 93.

[0080] The second outer wall 95 is a portion that stands up from the rear edge portion in the outer peripheral portion of the second plate portion 91, and links the rear edge portions of the second outer walls 92, 93 to each other, and is opposed to the second outer wall 94 in the front-rear direction. The outer surface of the second outer wall 95 is formed in a stepped shape like the second outer wall 94 by three end surfaces 95a that face the rear, and two side wall surfaces 95b that link the end surfaces 95a to each other in the front-rear direction. The three end surfaces 95a are arranged so as to be shifted more to the front as they are closer to the right side.

[0081] On the second outer wall 95, three communication grooves 95c that open at the respective end surfaces 95a are formed so as to be recessed in a circular arc shape toward the lower side from the division surface P2 (the upper end of the second outer wall 95). The communication grooves 95c are portions that individually house the lower sides of the three motor wires 51 to 53, and also open at the inner surface of the second outer wall 95. In the middle of each of the communication grooves 95c, a seal groove 95d that is formed by making the communication groove 95c more deeply recessed in a circular arc shape is formed. The seal groove 95d is a portion that individually houses the lower sides of the three seal members 54, and restricts the housed seal members 54 from moving in the front-rear and left-right directions. The outer peripheral surface of the seal member 54 is in close contact with the seal groove 95d, and they are sealed from each other.

[0082] The space surrounded by the second plate portion 91 and the second outer walls 92 to 95 is a second housing space that houses the lower sides of the connection terminals 61 to 63. The second inner walls 96, 97 are portions for dividing this second housing space into three second individual spaces SB1, SB2, SB3 that individually house the three connection terminals 61 to 63. The second individual space SB1 houses the connection terminal 61, the second individual space SB2 houses the connection terminal 62, and the second individual space SB3 houses the connection terminal 63. In addition, the three second individual spaces SB1 to SB3 individually communicate with the three communication grooves 95c.

[0083] The second inner wall 96 is provided between the second individual spaces SB1, SB2. The second inner wall 97 is provided between the second individual spaces SB2, SB3. The second inner walls 96, 97 are continuous in the entire length between the second outer walls 94, 95, and are linked to the second outer walls 94, 95. The second inner walls 96, 97 are formed higher toward the upper side than the second outer walls 92 to 95.

[0084] When assembling the wire harness block 70 (connector 55) described above, firstly, the connecting terminals 61-63, motor wiring 51-53, and sealing member 54 are housed in each part of the first component 80 or the second component 90 (first individual space SA1-SA3 or second individual space SB1-SB3, etc.). Next, the dividing surface P1, which is the lower end of the first outer wall 82-85, is engaged with the dividing surface P2, which is the upper end of the second outer wall 92-95, and the four hook parts 90a are hooked onto the four claw parts 80a respectively. Thus, the first component 80 and the second component 90 are assembled together to form the wire harness block 70.

[0085] This assembled state is referred to as the assembled state of the wire harness block 70. In the assembled state, the four sets of claws 80a and hooks 90a are separated from each other in the front, back, left, and right directions and have different orientations, thus ensuring a secure assembly between the first component 80 and the second component 90. It should be noted that the number and position of the claws 80a and hooks 90a can be appropriately changed; for example, hooks 90a can be provided on the first component 80 and claws 80a can be provided on the second component 90.

[0086] On the dividing surface P1 of the first outer wall 82-84, an engaging step 80b is formed in a manner that is approximately continuous around the circumference, with the inner side protruding in a stepped manner relative to the outer side. Conversely, on the dividing surface P2 of the second outer wall 92-94, an engaging step 90b is formed in a manner that is approximately continuous around the circumference, with the inner side recessed in a stepped manner relative to the outer side. In the assembled state, the engaging steps 80b and 90b engage with each other, which can suppress the misalignment of the first component 80 and the second component 90.

[0087] In the assembled state, the first outer wall 82-84 is connected to the second outer wall 92-94, forming an outer peripheral wall connecting the outer periphery of the first plate portion 81 and the outer periphery of the second plate portion 91. The portion between the first plate portion 81 and the second plate portion 91, surrounded by this outer peripheral wall, overlaps the aforementioned first storage space and second storage space to form a storage space.

[0088] Furthermore, in the assembled state, the first individual space SA1 of the first component 80 and the second individual space SB1 of the second component 90 overlap vertically to form an individual space S1 (see reference). FIG. 6BSimilarly, a single space S2 is formed by the first single space SA2 and the second single space SB2, and a single space S3 is formed by the first single space SA3 and the second single space SB3. Further, the three connecting grooves 85c and 95c (including sealing grooves 85d and 95d) overlap each other vertically to form three connecting holes that open at their respective end faces 85a and 95a. The wire harness block 70 is divided into a first component 80 and a second component 90 by the dividing surfaces P1 and P2 passing through these three connecting holes and the three single spaces S1, S2, and S3.

[0089] like FIG. 6A As shown, the dividing surfaces P1 and P2 are located further downwards than the axis of the motor wiring 51-53 housed in the connecting holes (connecting grooves 85c, 95c and sealing grooves 85d, 95d). Therefore, relatively speaking, connecting groove 85c is deeper in the vertical direction than connecting groove 95c, sealing groove 85d is deeper than sealing groove 95d, and the first outer walls 82-85 are higher in the vertical direction than the second outer walls 92-95.

[0090] In this embodiment, to prevent fluids such as cooling media from seeping into the interior of the wiring harness block 70 through the gap between the motor wiring 51-53 and the connecting hole, the outer peripheral surface of the sealing member 54 is made to seal the sealing grooves 85d and 95d around its entire circumference, thereby closing the gap. However, this is not a limitation; the sealing member 54 and the sealing grooves 85d and 95d may be omitted, and the gap may be closed by making the covering portions 51b-53b of the motor wiring 51-53 seal the connecting grooves 85c and 95c around their entire circumference.

[0091] In either case, when assembling the wire harness block 70, the cover portions 51b-53b and the sealing member 54 may bite into the dividing surfaces P1 and P2. In particular, when the connecting grooves 85c and 95c and the sealing grooves 85d and 95d are semicircular of the same size, the cover portions 51b-53b and the sealing member 54, which are pressed into each groove and deformed to the left and right and overflow from the grooves, are prone to biting into the dividing surfaces P1 and P2.

[0092] In contrast, because the connecting groove 85c and the sealing groove 85d are formed deeply, when assembling the wire harness block 70, the covering parts 51b to 53b and the sealing member 54 are first housed in the connecting groove 85c and the sealing groove 85d, thereby allowing the inner walls of the connecting groove 85c and the sealing groove 85d to restrict their deformation in the left and right directions. As a result, during assembly, the covering parts 51b to 53b and the sealing member 54 are less likely to bite into the dividing surfaces P1 and P2.

[0093] In addition, even in a case where the cover portions 51b to 53b and the like are housed in the shallow communication grooves 95c and the like when the harness block 70 is assembled, the cover portions 51b to 53b and the like can be less likely to bite into the division surfaces P1, P2. This is because, before the cover portions 51b to 53b and the like are deformed to the left and right directions while being sandwiched between the communication grooves 85c and the like and the communication grooves 95c and the like, the inner walls of the communication grooves 85c and the like are positioned to the left and right of the cover portions 51b to 53b and the like, and the deformation can be restricted by the inner walls.

[0094] As shown in FIG. 6, when the motor wires 51 to 53 housed in the first member 80 move at a position further outward than the end surface 85a when the harness block 70 is assembled, the cover portions 51b to 53b and the like are likely to bite into the division surfaces P1, P2. In contrast, in the present embodiment, by making the motor wires 51 to 53 follow the extension grooves 88a of the extension portions 88 protruding from the end surface 85a, the movement of the motor wires 51 to 53 can be restricted. Thus, the cover portions 51b to 53b and the like can be less likely to bite into the division surfaces P1, P2 in the vicinity of the end surfaces 85a, 95a. FIG. 4 FIG. 6A As shown in FIG. 6, when the motor wires 51 to 53 housed in the first member 80 move at a position further outward than the end surface 85a when the harness block 70 is assembled, the cover portions 51b to 53b and the like are likely to bite into the division surfaces P1, P2. In contrast, in the present embodiment, by making the motor wires 51 to 53 follow the extension grooves 88a of the extension portions 88 protruding from the end surface 85a, the movement of the motor wires 51 to 53 can be restricted. Thus, the cover portions 51b to 53b and the like can be less likely to bite into the division surfaces P1, P2 in the vicinity of the end surfaces 85a, 95a.

[0095] If the extension portions 88 are provided not only in the first member 80 but also in the second member 90, the cover portions 51b to 53b and the like can bite into the extension surfaces 88b, 88c which are division surfaces of the extension portions 88 from each other. However, in the present embodiment, since the extension portions 88 are present only in the first member 80, such biting can be prevented.

[0096] Further, since the first member 80 is provided with the extension portions 88, the extension grooves 88a can be deepened similarly to the communication grooves 85c. As a result, when the harness block 70 is assembled, the movement of the motor wires 51 to 53 housed in the extension grooves 88a can be more easily restricted, and the cover portions 51b to 53b and the like can be further less likely to bite into the division surfaces P1, P2 in the vicinity of the end surfaces 85a, 95a.

[0097] In addition, the restriction portions 89 extend from the extension surface 88c on the right side of the extension portion 88 along the end surface 95a of the second member 90 where the extension portion 88 is not provided. Thus, even when the motor wires 51 to 53 float from the communication grooves 85c, 95c, the extension grooves 88a when the harness block 70 is assembled, the movement of the motor wires 51 to 53 of the floating portions can be restricted by the restriction portions 89. Therefore, the cover portions 51b to 53b and the like can be less likely to bite into the division surfaces P1, P2 in the vicinity of the end surfaces 85a, 95a.

[0098] Note that the restriction portions 89 can also extend from the extension surface 88b on the left side of the extension portion 88. In this case, the cover portions 51b to 53b and the like can also be less likely to bite into the division surfaces P1, P2 in the vicinity of the end surfaces 85a, 95a.​

[0099] However, in this embodiment, the multiple end faces 95a of the second component 90 are connected in a stepped manner via side wall surfaces 95b. Therefore, it is preferable to provide a limiting portion 89 on the extended surface 88c on the side away from the side wall surface 95b in the left-right direction (radial direction of the connecting hole). Thus, even when the motor wiring harness 51-53 floats from the connecting slots 85c, 95c, and extended slot 88a during the assembly of the wiring harness block 70, the movement of the floated motor wiring harness 51-53 can be restricted between the limiting portion 89 and the opposing side wall surface 95b. Therefore, it is possible to further prevent the covering portions 51b-53b from easily biting into the dividing surfaces P1 and P2 near the end faces 85a and 95a.

[0100] Motor wiring 51-53 extending from wiring harness block 70 along axis C (see reference) FIG. 2 The circumferential direction of the wire harness block 70 bends to the right. Therefore, when assembling the wire harness block 70, the motor wiring 51-53, which floats from the connecting slots 85c, 95c, and extension slot 88a, easily shifts to the right, potentially causing the covering portions 51b-53b on the right side of the connecting slots 85c, 95c, etc., to easily bite into the dividing surfaces P1, P2. However, since the limiting portion 89 extends from the extension surface 88c on the right side of the extension slot 88a, it can limit the rightward shift of the motor wiring 51-53. Thus, depending on the bending direction of the motor wiring 51-53, the covering portions 51b-53b, etc., can be effectively prevented from biting into the dividing surfaces P1, P2.

[0101] Alternatively, the limiting part 89 can extend from both of the pair of extended surfaces 88b and 88c, but it is preferable that the limiting part 89 extends only from the right extended surface 88c. This is because, due to the bending direction of the motor wiring 51-53 and the presence of the side wall surface 95b, it is difficult for the left-side covering parts 51b-53b of the connecting grooves 85c and 95c to bite into the dividing surfaces P1 and P2. By preventing the limiting part 89 from extending from the left-side extended surface 88b, the wire harness block 70 can be made lighter, or the amount of raw materials used can be reduced.

[0102] When assembling the wire harness block 70, by first housing the connecting terminals 61-63 within the first separate spaces SA1-SA3 of the first component 80 surrounded by the higher first outer walls 82-85, the connecting terminals 61-63 are less likely to tilt. Therefore, the connecting terminals 61-63 can be easily and stably held in the first component 80 during assembly. Furthermore, since the first inner walls 86 and 87 between the first separate spaces SA1-SA3 are approximately the same height as the first outer walls 82-85, the connecting terminals 61-63 can be held stably in the first component 80 even more easily.

[0103] Furthermore, since the first inner walls 86 and 87 are partially omitted, even if the first separate spaces SA1 to SA3 are surrounded by the high first outer walls 82 to 85 and the first inner walls 86 and 87, it is easy to perform operations such as storing the connecting terminals 61 to 63 in the first separate spaces SA1 to SA3 and removing the connecting terminals 61 to 63 from the first separate spaces SA1 to SA3.

[0104] Furthermore, such as FIG. 7A and FIG. 7B As shown, in the vertical direction opposite to the first plate portion 81 and the second plate portion 91, the ends (partition surface P1) of the first outer walls 82-85 are located closer to the second plate portion 91 than the center of the ends 61b-63b of the connecting terminals 61-63 that contact the first plate portion 81 in the vertical direction. That is, the first outer walls 82-85 are formed higher than the ends 61b-63b. As a result, when assembling the wire harness block 70, the higher first outer walls 82-85 can more easily and stably hold the connecting terminals 61-63 to the first component 80.

[0105] exist FIG. 6B and FIG. 7B In the assembled state shown, a portion of the inner wall of the three separate spaces S1, S2, S3, each housing the three connecting terminals 61-63, is formed by overlapping the first inner walls 86, 87 with the second inner walls 96, 97. In this overlapping portion, the insulation distance between adjacent connecting terminals 61-63 is not a straight line, but rather meanders between the first inner walls 86, 87 and the second inner walls 96, 97, thus ensuring the insulation distance. By ensuring this insulation distance, the separate spaces S1, S2, S3 can be easily brought closer together, thereby facilitating the miniaturization of the wire harness block 70.

[0106] The connecting terminals 61-63 are formed such that the connecting portions 61a-63a are lower towards the second plate portion 91 relative to the end portions 61b-63b, and the connecting portions 61c-63c are further lower towards the second plate portion 91 relative to the connecting portions 61a-63a. The inner wall portion adjacent to the higher end portions 61b-63b is formed by overlapping the first inner wall 86, 87 and the second inner wall 96, 97, which ensures the insulation distance as described above.

[0107] In contrast, the inner wall portions between the connection portions 61c to 63c are formed only by the second inner walls 96, 97. Since the second inner walls 96, 97 rise from the second plate portion 91 to a position higher than the connection portions 61c to 63c, the insulation distance between the connection portions 61c to 63c can be ensured by detouring the second inner walls 96, 97 even if the first inner walls 86, 87 do not overlap. Further, by partially omitting the overlap of the first inner walls 86, 87 and the second inner walls 96, 97, the wire harness block 70 can be easily downsized and lightened, or the amount of use of raw materials of the wire harness block 70 can be easily reduced.

[0108] The adjacent individual spaces S1, S2 are arranged in a staggered manner with the connection portion 61c in the individual space S1 adjacent to the connection portion 62a in the individual space S2. Similarly, the adjacent individual spaces S2, S3 are arranged in a staggered manner with the connection portion 62c in the individual space S2 adjacent to the connection portion 63a in the individual space S3. The inner wall portions between these connection portions 62a, 63a and the connection portions 61c, 62c are also formed only by the second inner walls 96, 97.

[0109] Even in this case, since the second inner walls 96, 97 rise from the second plate portion 91 to a position higher than the connection portions 62a, 63a and the connection portions 61c, 62c, the insulation distance between the connection portions 62a, 63a and the connection portions 61c, 62c can be ensured as with the connection portions 61c to 63c. Further, the portion in which the overlap of the first inner walls 86, 87 and the second inner walls 96, 97 can be omitted can be enlarged, and the wire harness block 70 can be more easily downsized and the like.

[0110] Next, the wire harness block fixing structure for fitting the wire harness block 70 to the coil holder 42 of the motor 30 will be described. As shown in Figs. 1 and 2, the wire harness block 70 is fitted to the coil holder 42 of the motor 30 in a state in which the wire harness block 70 is positioned in the axial direction of the coil holder 42.

[0111] As shown in Figs. 1 and 2, the wire harness block 70 is fitted to the coil holder 42 of the motor 30 in a state in which the wire harness block 70 is positioned in the axial direction of the coil holder 42. The bottom surface (lower surface) of the second plate portion 91, which is the bottom plate of the wire harness block 70, is in contact with the axial end surfaces 42d, 42e of the coil holder 42. The axial end surface 42e is located at a position lower toward the bottom than the axial end surface 42d, and the bottom surface of the second plate portion 91 is configured to absorb the difference in height thereof. Specifically, the bottom surface of the second plate portion 91 has adjustment protrusions 91b, 91c protruding toward the bottom at positions corresponding to the axial end surface 42e, and the lower ends of the adjustment protrusions 91b, 91c are in contact with the axial end surface 42e.

[0112] In a portion of the second plate portion 91 that protrudes further outward than the second outer wall 94, a first through-hole 91a that penetrates the second plate portion 91 in the vertical direction is formed. The protruding portion 45 inserted into the first through-hole 91a protrudes from the axial end surface 42d of the coil holder 42. Thus, the wire harness block 70 can be substantially restricted from moving in a direction other than upward with respect to the coil holder 42.

[0112] Further, the tip of the protruding portion 45 inserted into the first through-hole 91a is located at a position higher than the second plate portion 91, and the extending portion 46 extends from the tip toward the radial direction outside of the shaft C. Thus, a portion of the second plate portion 91 around the first through-hole 91a is opposed to the extending portion 46 in the up-down direction. As a result, when the wire harness block 70 is moved toward the upper side relative to the bobbin 42, the movement toward the upper side is also restricted because the second plate portion 91 is hooked to the extending portion 46.

[0113] The wall portion 91d is erected from the bottom surface of the second plate portion 91 in a manner extending toward the lower side, and the wall portion 91d has a restriction surface 91e toward the side of the first through-hole 91a and the direction in which the protruding portion 45 extends. Note that, in the present embodiment, the first through-hole 91a is offset from the front surface position of the restriction surface 91e toward the rear side in the circumferential direction when viewed in the up-down direction. The wall portion 91d is connected to the adjustment protrusion 91c in a manner that the restriction surface 91e is erected from the adjustment protrusion 91c. In a state where the protruding portion 45 is inserted into the first through-hole 91a and a portion of the second plate portion 91 around the first through-hole 91a is opposed to the extending portion 46 in the up-down direction, the restriction surface 91e is in abutment with the abutment surface 42f which is the inner peripheral wall surface of the inner peripheral wall portion 42c.

[0114] Thus, even if it is intended to relatively move the second plate portion 91 toward the direction in which the extending portion 46 extends in order to release the opposition of the second plate portion 91 and the extending portion 46, the relative movement can be restricted by the abutment of the restriction surface 91e and the abutment surface 42f, and thus the release of the opposition can be suppressed. As a result, the wire harness block 70 can be made less likely to be detached from the bobbin 42.

[0115] On the other hand, when the wire harness block 70 is assembled to the bobbin 42, first, the extending portion 46 and the protruding portion 45 are inserted into the first through-hole 91a in a state where the second plate portion 91 is inclined in a manner that the wall portion 91d side of the second plate portion 91 is distanced from the inner peripheral wall portion 42c of the bobbin 42. Note that the length of the first through-hole 91a in the direction in which the extending portion 46 extends is formed to be larger than the sum of the extension amount LI of the extending portion 46 from the protruding portion 45 to the tip of the extending portion 46 and the thickness L2 of the extending portion 46 in the direction in which the extending portion 46 extends among the dimensions of the protruding portion 45. Thus, the protruding portion 45 and the extending portion 46 can be easily inserted into the first through-hole 91a.

[0116] After inserting the first through hole 91a, the wall portion 91d of the second plate portion 91 is tilted using the first through hole 91a as a fulcrum, so that the second plate portion 91 contacts the axial end faces 42d and 42e of the coil frame 42, and the limiting surface 91e is positioned opposite the abutment surface 42f. This allows the wire harness block 70 to be easily assembled to the coil frame 42. The result is a balance between easy assembly of the wire harness block 70 to the coil frame 42 and difficulty in detachment after assembly.

[0117] The extension amount L1 of the protrusion 46 is more than half the thickness L2 of the protrusion 45 inside the first through hole 91a. In this way, since the extension amount L1 is ensured to a certain extent, it is possible to prevent the protrusion 46 from falling out of the first through hole 91a due to deformation of the protrusion 45 and the protrusion 46, thereby releasing the opposition between the second plate portion 91 and the protrusion 46. Therefore, it is possible to make the wire harness block 70 less likely to detach from the coil holder 42.

[0118] The second plate portion 91 is continuous around the entire circumference of the first through hole 91a, and the first through hole 91a is not open around its entire circumference. Therefore, the second plate portion 91 around the first through hole 91a is less prone to deformation, and the protrusion 46 is prevented from falling out of the first through hole 91a due to deformation, thereby releasing the opposition between the second plate portion 91 and the protrusion 46. Therefore, the wire harness block 70 is less likely to detach from the coil holder 42.

[0119] Since the motor wiring 51-53 extending from the wiring harness block 70 is bent circumferentially around the shaft C, the elastic reaction force of the motor wiring 51-53 applies a force to the wiring harness block 70 radially outward relative to the coil frame 42 of the motor 30. The abutment surface 42f is the inner circumferential wall surface of the coil frame 42 facing radially inward; therefore, the limiting surface 91e of the wiring harness block 70 is pressed against the abutment surface 42f by this elastic reaction force. In this way, the abutment surface 42f and the limiting surface 91e can be easily maintained by the elastic reaction force of the motor wiring 51-53, improving the radial positioning accuracy of the wiring harness block 70 relative to the coil frame 42.

[0120] like FIG. 2 and FIG. 7B As shown, a second through hole 91f is formed in the second plate portion 91, extending outward from the second outer wall 92. The second through hole 91f is located away from the first through hole 91a in a direction perpendicular to the direction of extension of the protrusion portion 46 (the front-rear direction of the wire harness block 70).

[0121] The insertion portion 47 capable of being inserted into the second through-hole 91f protrudes from the axial end surface 42d of the coil holder 42. The insertion portion 47 is a pin whose entire outer peripheral surface is exposed, and does not have a portion that protrudes toward the radial direction like the protruding portion 46. The insertion portion 47 is dimensioned so as to be fitted into the second through-hole 91f with a slight gap.

[0122] After the insertion portion 47 is inserted into such a second through-hole 91f and the harness block 70 is assembled to the coil holder 42, even if it is intended to tilt the harness block 70 only in the direction in which the protruding portion 46 protrudes using the first through-hole 91a as a fulcrum, the second plate portion 91 around the second through-hole 91f interferes with the insertion portion 47, making such tilting difficult. On the other hand, by tilting the harness block 70 using the first through-hole 91a as a fulcrum to raise the straight portion of the second through-hole 91f and the linking wall portion 91d, the second plate portion 91 and the insertion portion 47, the abutting surface 42f and the restricting surface 91e do not easily interfere with each other, and tilting thereof is easily possible. By such tilting, the harness block 70 can be easily detached from the coil holder 42, or easily assembled. Therefore, if the worker understands the assembly method of the harness block 70, it is possible to suppress a decrease in ease of assembly, and it is possible to suppress accidental detachment due to a limitation of the detachment method of the harness block 70.

[0123] Next, the second embodiment will be described with reference to FIG. 8A and FIG. 8B The second embodiment will be described. In the first embodiment, a case in which the first through-hole 91a is not opened on the entire circumference was described. In contrast, in the second embodiment, a case in which the first through-hole 102 is partially opened will be described. Note that the same reference numerals are assigned to portions common to the first embodiment, and the following description will be omitted. FIG. 8A is a plan view of an electric compressor having the harness block 100 in the second embodiment. FIG. 8B is a perspective view of a connector having the harness block 100.

[0124] In the second plate portion 91 of the second member 90 of the harness block 100, a first through-hole 102 is formed instead of the first through-hole 91a in the first embodiment. The harness block 100 is configured identically to the harness block 70 of the first embodiment except for the first through-hole 102 and the portion around the first through-hole 102.

[0125] A portion of the rear side in the radial direction outside of the first through-hole 102 is opened at the edge of the second plate portion 91 on the radial direction outside. Thus, the second plate portion 91 around the first through-hole 102 on the front side is formed with a hook portion 103 that is formed by bending the tip of the portion extending toward the radial direction outside into a claw shape toward the rear.

[0126] When the wire harness block 100 is assembled to the coil holder 42, first, the insertion portion 47 is inserted into the second through-hole 91f in such a manner that the hook portion 103 is positioned more radially inward than the protruding portion 45, and the lower surface of the second plate portion 91 is brought into contact with the axial end surfaces 42d, 42e of the coil holder 42. Then, the hook portion 103 is rotated around the insertion portion 47, and the hook portion 103 is elastically deformed while being pressed against the protruding portion 45, and the hook portion 103 is hooked to the protruding portion 45 below the extending portion 46. Thus, the wire harness block 100 can be easily assembled to the coil holder 42.

[0127] In addition, the direction in which the hook portion 103 is pressed against the protruding portion 45 at the time of assembly is the same as the direction of the force applied to the wire harness block 100 by the elastic reaction force of the motor wires 51 to 53 with respect to the coil holder 42. Therefore, the hook portion 103 can be pressed against the protruding portion 45 and elastically deformed by the elastic reaction force, and thus the hook portion 103 can be easily hooked to the protruding portion 45.

[0128] Note that even in the second embodiment in which the first through-hole 102 is opened by the hook portion 103, the wire harness block 100 can be assembled to the coil holder 42 by the same method as the first embodiment. Specifically, after the protruding portion 45 and the extending portion 46 are inserted into the first through-hole 102, the wall portion 91d side of the second plate portion 91 can be tilted down using the first through-hole 102 as a fulcrum, and the second plate portion 91 can be brought into contact with the axial end surface 42e.

[0129] The pair of mounting portions 104 hooked to the wall portion 91d protrude from the abutting surface 42f of the coil holder 42 in the second embodiment. The coil holder 42 of the first embodiment is configured identically to the coil holder 42 of the second embodiment except for the provision of the mounting portions 104.

[0130] The pair of mounting portions 104 protrude from the abutting surface 42f toward the radially inner side along both sides in the circumferential direction of the wall portion 91d at which the limiting surface 91e abuts against the abutting surface 42f, and the tips thereof are bent claw-like toward each other. The tips of the mounting portions 104 abut against the radially inner surface of the wall portion 91d. By the pair of mounting portions 104, the abutment of the abutting surface 42f and the limiting surface 91e can be more easily maintained, and the positioning accuracy of the wire harness block 100 with respect to the coil holder 42 in the radial direction can be more improved.

[0131] When the pair of mounting portions 104 are hooked to the wall portion 91d, the wall portion 91d is pressed against the pair of mounting portions 104, and the pair of mounting portions 104 are elastically deformed toward the direction in which they are apart from each other. Note that, as in the first embodiment, after the protruding portion 45 is inserted into the first through-hole 102, the wall portion 91d side of the second plate portion 91 can be tilted down with the first through-hole 102 as a fulcrum, and the mounting portions 104 can be hooked to the wall portion 91d when the second plate portion 91 comes into contact with the axial end surface 42e. In this case, the working hours are slightly increased from the point of view of pressing the wall portion 91d against the pair of mounting portions 104.

[0132] However, in the present embodiment, as described above, after the second plate portion 91 is brought into contact with the axial end surfaces 42d, 42e, the hook portion 103 is rotated around the insertion portion 47, and thus the hook portion 103 can be hooked to the protruding portion 45. Therefore, the mounting portions 104 can be hooked to the wall portion 91d at the same time as the rotation, and thus the working hours are hardly increased even when the mounting portions 104 are provided, and the wire harness block 100 can be easily assembled to the bobbin 42.

[0133] Next, the wire harness block 110 according to the third embodiment will be described with reference to FIG. 12. FIG. 9A The third embodiment will be described. In the first embodiment, the case where the extension portion 88 and the restriction portion 89 are provided to the first member 80 was described. In contrast to this, in the third embodiment, the case where the extension portion 111 and the restriction portion 115 are provided to the second member 90 will be described. Note that the same reference numerals are attached to the same portions as those of the first embodiment, and the following description will be omitted. FIG. 9A FIG. 12 is a perspective view of a wire harness block 110 according to the third embodiment.

[0134] In contrast to the wire harness block 70 of the first embodiment, the wire harness block 110 is configured in the same manner as the wire harness block 70 except that the extension portion 88 and the restriction portion 89 are omitted from the first member 80, and the extension portion 111 and the restriction portion 115 are provided to the second member 90.

[0135] The extension portion 111 is a portion that protrudes toward the rear from each of the three end surfaces 95a of the second member 90, and three are provided in total. The extension portion 111 has an extension groove 112 that extends the communication groove 95c (see FIG. 10) toward the rear, and a pair of extension surfaces 113, 114 that are provided to left and right sides (radial sides of the communication hole) of the extension groove 112 and extend the division surface P2. The extension groove 112 is formed over the entire length in the front-rear direction of the extension portion 111. The extension surface 113 is a portion on the left side of the extension groove 112. The extension surface 114 is a portion on the right side of the extension groove 112. Note that the extension surface 114 is a boundary between the restriction portion 115 and the extension portion 111, and is covered by the restriction portion 115, and thus is not shown in FIG. 12. FIG. 4 The extension groove 112 extends the communication groove 95c toward the rear. The extension surfaces 113, 114 extend the division surface P2. The extension groove 112 is formed over the entire length in the front-rear direction of the extension portion 111. The extension surface 113 is a portion on the left side of the extension groove 112. The extension surface 114 is a portion on the right side of the extension groove 112. Note that the extension surface 114 is a boundary between the restriction portion 115 and the extension portion 111, and is covered by the restriction portion 115, and thus is not shown in FIG. 12.FIG. 9A The extension surface 114 is shown by a dotted line.

[0136] According to the extension 111 of the second member 90, it is possible to make the cover portions 51b to 53b and the like less likely to bite into the division surfaces Pl, P2 near the end surfaces 85a, 95a, as with the extension 88 of the first member 80 in the first embodiment. In addition, since the first member 80 does not have the extension 88, it is possible to prevent the cover portions 51b to 53b and the like from biting into between the extension 88 and the extension surfaces 113, 114 of the extension 111.

[0137] The restriction portion 115 is a portion that protrudes straight upward from the entire surface of the right extension surface 114 and protrudes upward more than the division surface P2. The restriction portion 115 is formed along the end surface 85a of the first member 80. According to the restriction portion 115, it is possible to make the cover portions 51b to 53b and the like even less likely to bite into the division surfaces Pl, P2 near the end surfaces 85a, 95a, as with the restriction portion 89 of the first member 80 in the first embodiment.

[0138] In addition, as with the first embodiment, the movement of the motor wires 51 to 53 is restricted between the restriction portion 115 and the side wall surface 85b, or since the restriction portion 115 is present in the direction in which the motor wires 51 to 53 are bent, it is possible to make the cover portions 51b to 53b and the like even less likely to bite into the division surfaces Pl, P2.

[0139] Further, the restriction portion 115 is not provided on the left extension surface 113, and the entire surface of the extension surface 113 is exposed. This is also as with the first embodiment, by not providing the restriction portion 115 on the left side where the cover portions 51b to 53b and the like are less likely to bite in, it is possible to make the wire harness block 110 lightweight or reduce the amount of use of raw materials.

[0140] Next, the fourth embodiment will be described with reference to FIG. 9B The fourth embodiment will be described. In the first embodiment, the case where the extension 88 and the restriction portion 89 are provided on the first member 80 and the extension 111 and the restriction portion 115 are not provided on the second member 90 was described. In contrast, in the fourth embodiment, the case where the extensions 88, 111 and the restriction portions are provided on both the first member 80 and the second member 90 will be described. Note that the same reference numerals are assigned to the same portions as in the first and third embodiments, and the following description will be omitted. FIG. 9B is a perspective view of a wire harness block 120 in the fourth embodiment.

[0141] The first member 80 of the wire harness block 120 is configured substantially the same as the first member 80 of the wire harness block 70 in the first embodiment, except that the restriction portion 89 is replaced with a first restriction portion 121. The second member 90 of the wire harness block 120 is configured substantially the same as the second member 90 of the wire harness block 110 in the third embodiment, except that the restriction portion 115 is replaced with a second restriction portion 122.

[0142] In the assembled state of the wire harness block 120 in which the split faces PI, P2 of the first member 80 and the second member 90 are joined, the extension face 88b of the extension portion 88 of the first member 80 is joined with the extension face 113 of the extension portion 111 of the second member 90. Here, since the extension face 113 projects toward the extension grooves 88a, 112 relative to the extension face 88b, the cover portions 51b-53b and the like are less likely to be caught between the extension faces 88b, 113.

[0143] The first restriction portion 121 is a portion that projects straight downward from the right side extension face 88c and projects further downward than the split face PI. The first restriction portion 121 is formed along the end face 95a of the second member 90. A portion of the extension portion 111 is removed to avoid the first restriction portion 121 (so that the first restriction portion 121 is embedded). The second restriction portion 122 is a portion that projects straight upward from the right side extension face 114 and projects further upward than the split face P2. The second restriction portion 122 is formed along the first restriction portion 121. A portion of the extension portion 88 is removed to avoid the second restriction portion 122 (so that the second restriction portion 122 is embedded).

[0144] Thus, as in the first and third embodiments, even if the motor wires 51-53 are lifted from the extension grooves 88a, 112 when the wire harness block 120 is assembled, the movement of the motor wires 51-53 of the lifted portion can be restricted by the first and second restriction portions 121, 122. As a result, the cover portions 51b-53b and the like are less likely to be caught between the extension faces 88b, 113, the split faces PI, P2.

[0145] Further, in the assembled state, the first and second restriction portions 121, 122 that stand vertically from the respective extension faces 88c, 114 overlap along the extension grooves 88a, 112. When the wire harness block 120 is assembled by relatively approaching the first member 80 and the second member 90 toward the vertical direction, the first and second restriction portions 121, 122 slide with respect to each other. Thus, the cover portions 51b-53b and the like are less likely to be caught between the sliding first and second restriction portions 121, 122 than between the extension faces 88c, 114 that gradually approach each other in the up-down direction during assembly, or between the split faces PI, P2 that gradually approach each other in the up-down direction during assembly.

[0146] The above describes the present application according to the embodiments, but the present application is not limited to the above-described embodiments, and various modifications can be easily conceived without departing from the gist of the present application.

[0147] For example, the electric compressor 11 provided with the wire harness block 70, 100, 110, 120 is mounted on the vehicle 1, but is not limited thereto. As shown in FIG. 10A , the electric compressor 11 provided with the wire harness block 70, 100, 110, 120 can be mounted on an air conditioner 130 for supplying cold air to the indoor of a building or the like. The air conditioner 130 generates cold air by the electric compressor 11 mainly provided with the electric motor 30 and the accumulator 12, like the air conditioner 10 described in the above-described embodiments.

[0148] As shown in FIG. 10B , the electric compressor 11 provided with the wire harness block 70, 100, 110, 120 can be mounted on a refrigerator 140. The refrigerator 140 generates cold air by the electric compressor 11 mainly provided with the electric motor 30 and the accumulator 12, like the air conditioner 10 described in the above-described embodiments, and cools the inside of the refrigerator by the cold air.

[0149] In the above-described first embodiment, the first through-hole 91a is described as being deviated from the front surface position of the restriction surface 91e to the rear side in the circumferential direction, but is not limited thereto. For example, the first through-hole 91a can be deviated from the front surface position of the restriction surface 91e to the front side in the circumferential direction. In addition, as shown in FIG. 11A and FIG. 11B , the wire harness block 150 can be configured such that the first through-hole 91a is located at the front surface of the restriction surface 91e. In either case where the first through-hole 91a is located at the front surface of the restriction surface 91e or the first through-hole 91a is deviated from the front surface position, the restriction surface 91e is directed toward the first through-hole 91a side.

[0150] Note that in FIG. 11A and FIG. 11B , the wire harness block 150 can be configured such that the first through-hole 91a is located at the front surface of the restriction surface 91e. In either case where the first through-hole 91a is located at the front surface of the restriction surface 91e or the first through-hole 91a is deviated from the front surface position, the restriction surface 91e is directed toward the first through-hole 91a side. FIG. 3Similarly, the substantially all edges of the various parts of the harness block 150 are illustrated. The harness block 150 is configured substantially the same as the harness block 70 of the first embodiment, with the exception that the portion of the second plate portion 91 that extends outwardly further than the second outer wall 94 is extended toward the front side in the circumferential direction. On this outwardly extending portion, a plurality of holes are formed in addition to the first through-hole 91a, or a plurality of steps are formed, thereby reducing the weight of the second plate portion 91. The adjustment protrusion 91c of the harness block 150 is provided with two recesses that are recessed upwardly along the restriction surface 91e at the lower end thereof, and the adjustment protrusion 91c is formed in an E-shape, thereby being reduced in weight. The number or shape of these plurality of holes, steps, and recesses can be changed as appropriate, and these holes, steps, and recesses can also be applied to the harness block 70 and the like.

[0151] In addition, in the harness block 150, the adjustment protrusion 91b is divided into three portions in the front-rear direction, with respect to the harness block 70. The adjustment protrusion 91b of the harness block 150 can also be provided as one, two, four or more, and the adjustment protrusion 91b of the harness block 70 and the like can also be divided into two or more in the front-rear direction. Note that, with respect to the first embodiment, the protruding portion 45 of the bobbin 42 to which the harness block 150 is fitted is moved to a position where it can be inserted into the first through-hole 91a.

[0152] In the above-described embodiments, a case in which three separate spaces S1 to S3 are formed in the harness blocks 70, 100, 110, 120, 150 has been described, but the number of separate spaces can be one, two, four or more, for example. The number of separate spaces can be the same as the number of connection terminals 61 to 63 provided at the distal ends of the motor wires 51 to 53 that are drawn from the motor 30. In addition, the inner wall portions that divide the separate spaces can be one piece or three or more pieces, depending on the number of separate spaces, and the number of communication holes (communication grooves 85c, 95c), end surfaces 85a, 95a, extension portions 88, 111 and the like can be changed as appropriate.

[0153] In the above-described embodiments, the harness block 70, 100, 110, 120, 150 is divided into two members by the division faces P1, P2, but the harness block 70, 100, 110, 120, 150 can be formed of one member, and can also be formed of three or more members. In the case where the harness block 70, 100, 110, 120, 150 is formed of one member, the extension portion 88, 111, the restriction portion 89, 115, the first restriction portion 121, the second restriction portion 122 provided to suppress biting into the division faces P1, P2 can also be omitted. In the case where the harness block 70, 100, 110, 120, 150 is formed of one member, the inner walls that divide the individual spaces S1 to S3 can also be integrated with the first plate portion 81 and the second plate portion 91, respectively, so that the inner wall portions are formed without overlapping the first inner walls 86, 87 and the second inner walls 96, 97.

[0154] In the above-described embodiments, the direction in which the restriction face 91e of the wall portion 91d faces is the radially outer side, and the direction in which the extension portion 46 extends from the protruding portion 45 is the radially outer side, but this is not necessarily the case. If, when viewed from the top and bottom directions, the direction in which the restriction face 91e faces is the same as the direction in which the extension portion 46 extends from the protruding portion 45, these directions can also be the radially inner side, the circumferential direction, or the like. Note that this is not limited to the case where, when viewed from the top and bottom directions, a straight line that is substantially perpendicular to the restriction face 91e and a straight line that passes through the center of the width direction (circumferential direction) of the extension portion 46 are parallel, and even if these are slightly deviated from the parallel state (for example, by 10 degrees), the direction in which the restriction face 91e faces and the direction in which the extension portion 46 extends from the protruding portion 45 are considered to be the same.

[0155] In addition, the positions of the wall portion 91d, the first through-hole 91a, 102, the second through-hole 91f, and the like can be appropriately changed, and the positions of the abutment face 42f, the protruding portion 45, and the insertion portion 47 can also be changed accordingly. For example, the abutment face 42f is not necessarily the inner peripheral wall face of the inner peripheral wall portion 42c, and can also be the inner peripheral wall face or the outer peripheral wall face of the outer cylindrical wall portion 42a. When the outer peripheral wall face of the outer cylindrical wall portion 42a is set as the abutment face 42f, the face on the radially inner side of the wall portion 91d becomes the restriction face 91e.

[0156] In the above-described embodiments, the extension amount L1 of the extension portion 46 is more than half of the thickness L2 of the protruding portion 45 in the first through-hole 91a, and the length of the first through-hole 91a in the direction in which the extension portion 46 extends is greater than the sum of the extension amount L1 and the thickness L2, but the dimensional relationship between these can be appropriately changed.

[0157] In the above-described embodiment, the case where the inner wall portion that divides the individual spaces S1 to S3 is formed by partially overlapping the first inner wall 86, 87 and the second inner wall 96, 97 has been described, but it is not necessarily limited thereto. It can also be that the first inner wall 86, 87 is formed over the entire length in the front-rear direction from the first outer wall 84 to the first outer wall 85, and the inner wall portion is formed entirely by overlapping the first inner wall 86, 87 and the second inner wall 96, 97. For example, in this case, it is possible to make the insulation distance between the connection portions 61c to 63c, the insulation distance between the connection portions 62a, 63a and the connection portions 61c, 62c longer.

[0158] In addition, if the necessary insulation distance between the connection terminals 61 to 63 can be ensured, the position where the overlapping of the first inner wall 86, 87 and the second inner wall 96, 97 is omitted can also be changed as appropriate. For example, it can also be that the necessary insulation distance between the connection terminals 61 to 63 is changed by changing the shape (height relationship) of each portion of the connection terminals 61 to 63 as appropriate, and thereby the position where the first inner wall 86, 87 and the second inner wall 96, 97 need to overlap is changed. In addition, in the case where a portion of the connection terminals 61 to 63 is recessed upward, and the like, the above-described first member 80 can be provided as a second member, the above-described second member 90 can be provided as a first member, and the first inner wall of the first member after the replacement can be partially omitted in a manner corresponding to the position that is recessed upward.

[0159] In the above-described embodiment, the case where the individual spaces S1 to S3 are arranged so as to be staggered in the front-rear direction with respect to each other has been described, but it is not necessarily limited thereto. It is also possible to align the front ends and the rear ends of the individual spaces S1 to S3, and the manner in which they are staggered can also be changed as appropriate. The inner wall portion between the connection portions 61a to 63a can also be formed by overlapping the first inner wall 86, 87 and the second inner wall 96, 97 in accordance with the necessary insulation distance between the connection portions 61a to 63a, and can also be formed only by the second inner wall 96, 97. In addition, in the case where the rear ends of the individual spaces S1 to S3 are aligned, the end faces 85a around the three communication holes (communication grooves 85c, 95c) are also aligned in one piece.

[0160] In the above-described embodiment, the case where a total of three extension portions 88 are provided so as to protrude from the end faces 85a around each of the three communication holes, and a total of three extension portions 111 are provided so as to protrude from the end faces 95a around each of the three communication holes has been described, but it is not limited thereto. For example, it can also be that one or two extension portions 88 protrude from the end faces 85a around one or two of the three communication holes, and one or two extension portions 111 protrude from the end faces 95a around one or two of the three communication holes. This is the same whether the end faces 85a around the three communication holes are aligned in one piece or the end faces 85a are separated for each communication hole.

[0161] In the above-described embodiments, the case where the division surfaces P1, P2 of the first member 80 and the second member 90 are located on the lower side (second member 90 side) than the axis of the motor wires 51 to 53 housed in the communication grooves 85c, 95c has been described, but it is not necessarily limited thereto. The division surfaces P1, P2 can pass through the axis of the motor wires 51 to 53, and the division surfaces P1, P2 can be located on the upper side (first member 80 side) than the axis. Note that in the case where the division surfaces P1, P2 are located on the upper side than the axis, the first member 80 provided with the insertion hole 81a can be made the second member, and the second member 90 on the coil holder side can be made the first member. In addition, the wire harness blocks 70, 100, 110, 120, 150 can be reversed upside down, and the insertion hole 81a can be provided in the second member 90 on the upper side. In addition, the first outer walls 82 to 85 or the second outer walls 92 to 95 can be omitted depending on the positions of the division surfaces P1, P2.

[0162] Explanation of Reference Signs

[0163] 10: air conditioning device (vehicle-mounted device); 11: electric compressor; 20: compression section; 30: electric motor; 51, 52, 53: motor wire; 51a, 52a, 53a: wire; 51b, 52b, 53b: covering portion; 56: control circuit; 56a, 56b, 56c: mating terminal; 61, 62, 63: connection terminal; 61a, 62a, 63a: connection portion; 61b, 62b, 63b: end portion; 61c, 62c, 63c: link portion; 70, 100, 110, 120, 150: wire harness block; 81: first plate portion; 82, 83, 84, 85: first outer wall (part of outer peripheral wall); 86, 87: first inner wall (part of inner peripheral wall); 91: second plate portion; 92, 93, 94, 95: second outer wall (part of outer peripheral wall); 96, 97: second inner wall (part of inner peripheral wall); 130: air conditioning device; 140: refrigerator; S1, S2, S3: individual space.

Claims

1. A harness block provided to an electric compressor, the electric compressor having: a compression unit that compresses a fluid; a motor that drives the compression unit; a control circuit that performs drive control of the motor; a plurality of motor wires that are drawn from the motor; and a plurality of connection terminals that are respectively provided to distal ends of the plurality of motor wires and are electrically connected to counterpart terminals on the control circuit side, the harness block comprising: first and second plate portions that sandwich the plurality of connection terminals and face each other; an outer peripheral wall that links an outer peripheral portion of the first plate portion and an outer peripheral portion of the second plate portion, and forms an accommodation space between the first and second plate portions; and one or more inner wall portions that divide the accommodation space into a plurality of individual spaces that individually accommodate the plurality of connection terminals, the inner wall portions comprising: a first inner wall that stands from the first plate portion toward the second plate portion; and a second inner wall that stands from the second plate portion toward the first plate portion, at least a portion of the inner wall portions being formed by overlapping the first inner wall and the second inner wall.

2. The harness block according to claim 1, wherein the motor wire is formed by covering a wire with an insulating cover portion, the connection terminal comprises a cylindrical connection portion that covers the cover portion, a distal end portion that connects to the counterpart terminal, and a link portion that links between the distal end portion and the connection portion and is formed to be lower toward the second plate portion side with respect to the distal end portion, the inner wall portion at a position adjacent to the distal end portion is formed by overlapping the first inner wall and the second inner wall, and the inner wall portions between the link portions are formed only by the second inner wall that stands from the second plate portion to a position higher than the link portions.

3. The harness block according to claim 2, wherein the connection portion is formed to be lower toward the second plate portion side with respect to the distal end portion, the adjacent individual spaces are arranged so as to be staggered with respect to each other in a manner in which the connection portion in one of the individual spaces is adjacent to the link portion in another of the individual spaces, and the inner wall portions between the connection portion and the link portion are formed only by the second inner wall that stands from the second plate portion to a position higher than the connection portion and the link portion.

4. The harness block according to claim 2, wherein the outer peripheral wall comprises a first outer wall that stands from the first plate portion toward the second plate portion and is continuous with the first inner wall, and a distal end abuts against the second plate portion side, and in a direction in which the first and second plate portions face each other, the distal end of the first outer wall is located at a position closer to the second plate portion side than a center of the distal end portion that contacts the first plate portion.

5. An electric motor equipped with the harness block according to any one of claims 1 to 4.

6. An electric compressor comprising the harness block according to any one of claims 1 to 4, the compression unit, the motor, the control circuit, the motor wires, and the connection terminals. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 7. An air conditioning apparatus incorporating the electric compressor of claim 6.

8. A refrigerator incorporating the electric compressor of claim 6.

9. A vehicle-mounted device incorporating the electric compressor of claim 6.

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