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-conditioning device, a refrigerator, and a vehicle-mounted device, wherein motor wiring and the like are not easy to bite when the wire harness block is assembled. The wire harness block (70) is divided into a first member (80) and a second member (90) by dividing surfaces (P1, P2) passing through the plurality of individual spaces (S1-S3). The split surfaces (P1, P2) are positioned further toward the second member (90) than the axes of the motor wires (51-53) housed in the communication grooves (85c, 95c). As a result, the communication groove (85c) on the first member (80) side is deep, and the communication groove (95c) on the second member (90) side is shallow. Therefore, when the wire harness block (70) for joining the dividing surfaces (P1, P2) is assembled, motor wires (51-53) and the like are not easy to bite into the dividing surfaces (P1, P2).

Description

TECHNICAL FIELD

[0001] The present application relates to a cluster block which can prevent a motor wire or the like from being easily caught when assembled, 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 wires that are drawn out from the motor, a plurality of connection terminals that are respectively provided at the tips of the plurality of motor wires and are electrically connected to the control circuit, and a cluster block that houses the tip sides of the motor wires and the connection terminals in an insulating manner. The cluster block is known to have a cluster block in which a gap around the motor wires is closed by a sealing member made of an elastic body in order to suppress the intrusion of the fluid, lubricating oil, or the like from the gap into the inside of the cluster block.

[0003] In addition, the cluster block 40 disclosed in Patent Document 1 is composed of two members, a housing member 50 (first member) having three sets of housing chambers 55 (separate spaces) that are open at the top and motor wire insertion holes 51 (communication holes), and a cover member 60 (second member) that overlaps the housing member 50 in a manner that closes the top openings of the housing chambers 55 and the motor wire insertion holes 51. The cluster block 40 is assembled by housing the connection terminals 41 in the housing chambers 55 of the housing member 50 and housing the tip sides of the motor wires in the motor wire insertion holes 51, and then overlapping the cover member 60 with the housing member 50.

[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 case where the cluster block is divided into a first member and a second member and the gap around the motor wires is closed as in the above-described prior art, the covering portion of the motor wires and the sealing member are likely to be easily caught in the joint surface (divided surface) of the first member and the second member in the vicinity of the semicircular-shaped groove when the cluster block is assembled.

[0009] The present application has been achieved in order to solve the above-described technical problem, and has an object to provide a wire harness block in which a motor wire and the like is less likely to be caught during assembly, a motor equipped with the wire harness block, an electric compressor provided with the wire harness block, and an air conditioning device, a refrigerator, and a vehicle-mounted device equipped with the electric compressor.

[0010] Solution for solving the technical problem

[0011] To achieve the object, the wire harness block of the present application is an insulating wire harness block provided in an electric compressor provided with 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 formed by covering a conductor wire with a cover portion made of an elastic body and 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 the control circuit. The wire harness block is provided with a plurality of individual spaces for individually housing the plurality of connection terminals, and a plurality of communication holes that individually communicate the individual spaces with an end surface outside the wire harness block to individually house the plurality of motor wires, and that are in close contact with an outer peripheral surface of the cover portion or an outer peripheral surface of a ring-shaped sealing member that covers the entire periphery of the cover portion, the sealing member being made of an elastic body. The wire harness block is divided by a division surface that passes through the plurality of communication holes and the plurality of individual spaces into a first member and a second member, the division surface being located at a position that is more biased toward the first member side or the second member side than the axis of the motor wire housed in the communication hole.

[0012] Effects of the invention

[0013] According to the wire harness block of the first aspect, the outer peripheral surface of the cover portion of the motor wire or the outer peripheral surface of the ring-shaped sealing member that covers the entire periphery of the cover portion, the sealing member being made of an elastic body, is in close contact with the plurality of communication holes that individually house the plurality of motor wires. Thus, it is possible to suppress the intrusion of a fluid or the like from the gap between the motor wire and the communication hole into the inside of the wire harness block. The wire harness block is divided by the division surface that passes through the plurality of communication holes and the plurality of individual spaces into the first member and the second member. The division surface is located at a position that is more biased toward the first member side or the second member side than the axis of the motor wire housed in the communication hole. Thus, the groove that constitutes the communication hole is deep on one of the first member side and the second member side and is shallow on the other. Therefore, when the wire harness block in which the division surface of the first member and the second member is joined is assembled, for example, the motor wire and the sealing member are first housed in the groove on the deep side, and thus the cover portion of the motor wire and the sealing member are less likely to be caught in the division surface.

[0014] According to the harness block of the second aspect, the following effects are achieved in addition to the effects achieved by the harness block of the first aspect. One of the first member and the second member has one or more extension portions that extend from an end surface around at least one of the plurality of communication holes. The extension portion has an extension groove that extends the communication hole, and a pair of extension surfaces that are provided on both sides in a radial direction of the communication hole with respect to the extension groove and extend the division surface. When the harness block is assembled, if the motor wire moves at a position further outward than the end surface, the covering portion and the sealing member are likely to bite into the division surface. However, by causing the motor wire to move along the extension groove of the extension portion, the movement of the motor wire can be restricted. Thus, the covering portion and the sealing member are less likely to bite into the division surface near the end surface. Further, if the extension portions are provided on both the first member and the second member, the covering portion and the sealing member are likely to bite into the extension surfaces that are division surfaces of the extension portions. However, since the extension portions are provided on only one of the first member and the second member, the covering portion and the sealing member are prevented from biting into the extension surfaces.

[0015] According to the harness block of the third aspect, the following effects are achieved in addition to the effects achieved by the harness block of the second aspect. The division surface is located at a position further toward the second member than the axis of the motor wire housed in the communication hole, and thus the groove constituting the communication hole is deeper on the first member side and shallower on the second member side. Since the extension portion is provided on the first member, the extension groove can be deepened. As a result, when the harness block is assembled, the movement of the motor wire housed in the extension groove can be more easily restricted, and the covering portion and the sealing member are further less likely to bite into the division surface near the end surface.

[0016] According to the harness block of the fourth aspect, the following effects are achieved in addition to the effects achieved by the harness block of the second aspect. The restriction portion extends from at least one of the pair of extension surfaces along the end surface of the other of the first member and the second member on which the extension portion is not provided. Thus, even if the motor wire floats up from the extension groove when the harness block is assembled, the movement of the motor wire of the floating portion can be restricted by the restriction portion, and thus the covering portion and the sealing member are more less likely to bite into the division surface near the end surface.

[0017] According to the harness block of the fifth aspect, the following effects are achieved in addition to the effects achieved by the harness block of the fourth aspect. In both the first member and the second member, a plurality of end surfaces through which the plurality of communication holes are individually opened are provided, and the plurality of end surfaces are connected in a stepped manner via one or more side wall surfaces. The restriction portion is provided on one of the pair of extension surfaces that is further away from the side wall surface in a radial direction of the communication hole. Thus, even if the motor wire floats up from the extension groove when the harness block is assembled, the movement of the motor wire of the floating portion can be restricted between the restriction portion and the side wall surface, and thus the covering portion and the sealing member are further less likely to bite into the division surface near the end surface.

[0018] According to the wire harness block of the sixth aspect, in addition to the effects achieved by the wire harness block of the fourth aspect, the following effects are achieved. The motor wiring that extends from the wire harness block is bent toward one side of the pair of extension surfaces, and thus, when the wire harness block is assembled, the cover portion and the sealing member are likely to easily bite into the division surface on the one side. However, since the restriction portion extends from the extension surface on the one side, the cover portion and the sealing member are effectively prevented from easily biting into the division surface according to the direction in which the motor wiring is bent.

[0019] According to the wire harness block of the seventh aspect, in addition to the effects achieved by the wire harness block of the first aspect, the following effects are achieved. The first member and the second member each have one or more extension portions that extend from an end surface around at least one of the plurality of communication holes. The extension portion of the first member and the extension portion of the second member overlap each other. The extension portion has an extension groove that extends the communication hole, and a pair of extension surfaces that are provided on both sides of the communication hole in the radial direction with respect to the extension groove and extend the division surface. The first restriction portion stands up from the extension surface of the first member, and the second restriction portion stands up from the extension surface of the second member. Thus, even if the motor wiring floats up from the extension groove when the wire harness block is assembled, the movement of the motor wiring of the floating portion is restricted by the first restriction portion and the second restriction portion, and the cover portion and the sealing member are effectively prevented from biting into the extension surface and the division surface.

[0020] Further, since the first restriction portion and the second restriction portion that stand up perpendicularly from each of the extension surfaces overlap along the extension groove, when the wire harness block is assembled such that the first member and the second member are relatively close to each other in the perpendicular direction, the first restriction portion and the second restriction portion slide with respect to each other. Thus, compared to the extension surfaces and the division surfaces that are gradually close to each other when the wire harness block is assembled, the cover portion and the sealing member are effectively prevented from biting into the first restriction portion and the second restriction portion that slide with respect to each other.

[0021] The electric motor of the eighth aspect is equipped with the wire harness block of any one of the first aspect to the seventh aspect, and thus achieves the effects achieved by the wire harness block. In addition, the electric compressor of the ninth aspect, the air conditioning device of the tenth aspect, the refrigerator of the eleventh aspect, and the vehicle-mounted device of the twelfth aspect each include the wire harness block of any one of the first aspect to the seventh aspect, and thus achieve the effects achieved by the wire harness block. BRIEF DESCRIPTION OF DRAWINGS

[0022] FIG. 1A is a block diagram that schematically shows a vehicle equipped with the electric compressor of the first embodiment.

[0023] FIG. 1B is a cross-sectional view that schematically shows the electric compressor.

[0024] FIG. 2 is FIG. 1B is a semi-cross-sectional view of the electric compressor at line II-II of

[0025] FIG. 3 FIG. 1 is a perspective view of an electric compressor, which is a first embodiment of the present application, showing a vicinity of a connector including a harness block in an enlarged manner.

[0026] FIG. 4 FIG. 2 is an exploded perspective view of the connector, which is viewed from an upper side.

[0027] FIG. 5 FIG. 3 is an exploded perspective view of the connector, which is viewed from a lower side.

[0028] FIG. 6A FIG. 4 is a sectional view of the connector at a line VIa-VIa of FIG. 1. FIG. 2

[0029] FIG. 6B FIG. 5 is a sectional view of the connector at a line VIb-VIb of FIG. 1. FIG. 6A

[0030] FIG. 7A FIG. 6 is a sectional view of the connector at a line VIIa-VIIa of FIG. 1. FIG. 2

[0031] FIG. 7B FIG. 7 is a sectional view of the connector at a line VIIb-VIIb of FIG. 1. FIG. 2

[0032] FIG. 8A FIG. 8 is a plan view of the electric compressor in a second embodiment.

[0033] FIG. 8B FIG. 9 is a perspective view of the connector.

[0034] FIG. 9A FIG. 10 is a perspective view of the harness block in a third embodiment.

[0035] FIG. 9B FIG. 11 is a perspective view of the harness block in a fourth embodiment.

[0036] FIG. 10A FIG. 12 is a block diagram schematically showing an air conditioning device in which the electric compressor is mounted.

[0037] FIG. 10B FIG. 13 is a block diagram schematically showing a refrigerator in which the electric compressor is mounted.

[0038] FIG. 11A FIG. 14 is a plan view of the harness block in a modification.

[0039] FIG. 11B FIG. 15 is a bottom view of the harness block in the modification. DETAILED DESCRIPTION

[0040] Hereinafter, a preferred embodiment will be described with reference to the accompanying drawings. FIG. 1A ​​​​is 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.

[0041] 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 portion 20, an electric motor 30, and an accumulator 12. The compression portion 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.

[0042] 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 portion 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.

[0043] The compression portion 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 portion 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 meshed 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".

[0044] The cooling medium compressed by the compression portion 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 portion 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.

[0045] 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.

[0046] 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 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 axis 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.

[0047] 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).

[0048] 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.

[0049] The stator core 41 is formed by stacking a plurality of thin plate-shaped electromagnetic steel sheets in the axial direction 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 axis 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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 wiring 51, 52, 53 is drawn from each phase coil 43. Note that the motor wirings 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 .

[0056] The motor wirings 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 extending from the connector 55 and toward the motor 30 are curved along the circumferential direction around the shaft C.

[0057] The control circuit 56 is disposed in a space 57 partitioned from the space in the sealed container 13 where the motor 30 is disposed by 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 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.

[0058] Three mating terminals 56a, 56b, 56c corresponding to the U-phase, V-phase, and W-phase, respectively, protrude from the control circuit 56. The mating terminals 56a to 56c are cylindrical metal terminals 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 where 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.

[0059] 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.

[0060] 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 specified. FIG. 1B FIG. 1B FIG. 2 FIG. 2 FIG. 2 FIG. 2 The paper surface upper side of the connector 55 is assumed to be the front side of the connector 55, and the paper surface lower side of the connector 55 is assumed to be the rear side of the connector 55. The motor wirings 51 to 53 extend 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.​​​​​

[0061] 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 general outline of each part of the electric compressor 11 is illustrated, but in other drawings, the illustration of a part of the outline is omitted. Also, in

[0062] As illustrated 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 61-63 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.

[0063] The connection terminals 61-63 are formed so as 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 61-63 are each provided with a cylindrical connection portion 61a, 62a, 63a that covers the motor wire 51-53, a terminal portion 61b, 62b, 63b that connects with the counterpart terminal 56a-56c, respectively, and a link portion 61c, 62c, 63c that links between the connection portion 61a-63a and the terminal portion 61b-63b.

[0064] ​​​​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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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 mating terminals 56a to 56c into the insertion holes 81a, respectively, the mating terminals 56a to 56c are electrically connected to the terminal portions 61b to 63b, respectively.

[0070] The first outer wall 82 is a portion rising from the left edge portion in the outer peripheral portion of the first plate portion 81. The first outer wall 83 is a portion rising from the right edge portion in the outer peripheral portion 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.

[0071] The first outer wall 84 is a portion rising from the front edge portion in the outer peripheral portion 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-rear direction.

[0072] 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.

[0073] 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-rear direction between the hooking protrusions 81b and the terminal walls 84a is substantially the same as the length in the front-rear 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-rear direction between the hooking protrusions 81b and the terminal walls 84a.

[0074] The first outer wall 85 is a portion that rises from the rear edge of the outer periphery of the first plate portion 81, connecting the rear edges of the first outer walls 82 and 83 to each other, and is opposite to the first outer wall 84 in the front-rear direction. The outer surface of the first outer wall 85, like the first outer wall 84, is formed in a stepped shape by three rearward-facing end faces 85a and two side wall faces 85b connecting the end faces 85a to each other in the front-rear direction. The three end faces 85a are arranged to be offset further forward towards the right. Furthermore, when the first component 80 and the second component 90 are assembled, the three end faces 85a and the three end faces 95a provided on the second component 90 are continuous on the same plane.

[0075] Three connecting grooves 85c are formed on the first outer wall 85, each opening at one end face 85a. These three connecting grooves 85c are U-shaped recesses extending upwards from the dividing surface P1 (the lower end of the first outer wall 85). Each connecting groove 85c is a separate portion for housing the upper sides of the three motor wirings 51-53, and also opens on the inner surface of the first outer wall 85. A sealing groove 85d is formed in the middle of each connecting groove 85c, creating a deeper U-shaped recess. The sealing groove 85d is a separate portion for housing the upper sides of three sealing components 54, and restricts the movement of the housing sealing components 54 in all directions. The outer peripheral surfaces of the sealing components 54 are tightly fitted into the sealing grooves 85d, sealing them together.

[0076] The first component 80 includes three extension portions 88 extending rearward from each end face 85a and three limiting portions 89 extending downward from the extension portions 88. Each extension portion 88 includes an extension groove 88a extending the connecting groove 85c rearward, and a pair of extension surfaces 88b and 88c provided on the left and right sides of the extension groove 88a and extending the dividing surface P1. It should be noted that the left and right sides of the extension groove 88a refer to the radial sides of the connecting hole (described later) formed by the connecting groove 85c connected to the extension groove 88a.

[0077] An extension groove 88a is formed along the entire length of the extension portion 88 in the front-rear direction. An extension surface 88b is the left side of the extension groove 88a. An extension surface 88c is the right side of the extension groove 88a. A limiting portion 89 extends vertically downwards from the entire surface of the right-side extension surface 88c, extending further downwards than the dividing surface P1. The extension surface 88c is the boundary between the limiting portion 89 and the extension portion 88, and is covered by the limiting portion 89. FIG. 4 The extended surface 88c is shown in dashed lines. The extended surface 88b on the left side is not provided with a limiting part 89, and the entire surface of the extended surface 88b is exposed.

[0078] 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.

[0079] 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 PI are located on substantially the same plane.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] In assembling the wire harness block 70 (the connector 55) described above, the connection terminals 61 to 63, the motor wires 51 to 53, and the sealing member 54 are first housed in each portion (the first individual spaces SA1 to SA3 or the second individual spaces SB1 to SB3, etc.) of the first member 80 or the second member 90. Next, the split surface P1 that is the lower end of the first outer walls 82 to 85 is joined to the split surface P2 that is the upper end of the second outer walls 92 to 95, and the four hooking portions 90a are hooked to the four claw portions 80a, respectively. Thus, the first member 80 and the second member 90 are assembled to each other, and the wire harness block 70 is assembled.

[0088] The state after the assembly as such is referred to as an assembled state of the wire harness block 70. In the assembled state, the four sets of the claw portions 80a and the hooking portions 90a are separated from each other in the front-rear and left-right directions and also different in the orientation, and thus the assembly of the first member 80 and the second member 90 can be securely maintained. Note that the number and the positions of the claw portions 80a and the hooking portions 90a can be appropriately changed, and the hooking portions 90a can be provided on the first member 80 and the claw portions 80a can be provided on the second member 90.

[0089] In the split surface P1 of the first outer walls 82 to 84, the engagement steps 80b that protrude in a stepped manner from the inside to the outside are formed in a substantially continuous manner around the entire circumference. In contrast, in the split surface P2 of the second outer walls 92 to 94, the engagement steps 90b that are recessed in a stepped manner from the outside to the inside are formed in a substantially continuous manner around the entire circumference. In the assembled state, the displacement of the first member 80 and the second member 90 can be suppressed by the engagement of the engagement steps 80b and 90b.

[0090] In the assembled state, the first outer walls 82 to 84 and the second outer walls 92 to 94 are connected to each other, and an outer peripheral wall that links the outer peripheral portions of the first plate portions 81 and the second plate portions 91 is formed. The portion surrounded by the outer peripheral wall between the first plate portions 81 and the second plate portions 91 forms a housing space by overlapping the first housing space and the second housing space.

[0091] In addition, in the assembled state, the first individual space SA1 of the first member 80 and the second individual space SB1 of the second member 90 overlap each other to form one individual space S1 (see FIG. 6). Similarly, the second individual spaces SB2 and SB3 of the second member 90 overlap each other to form one individual space S2. FIG. 6BSimilarly, one individual space S2 is formed by the first individual space SA2 and the second individual space SB2, and one individual space S3 is formed by the first individual space SA3 and the second individual space SB3. Further, the three communication grooves 85c, 95c (including the seal grooves 85d, 95d) are overlaid on each other in the up-down direction, respectively, to form three communication holes each of which opens at each of the end faces 85a, 95a. The harness block 70 is divided into the first member 80 and the second member 90 by the division faces Pl, P2 which pass through the three communication holes and the three individual spaces S1, S2, S3.

[0092] As shown in FIG. 6, the division faces Pl, P2 are located at positions which are more on the lower side than the axes of the motor wires 51 to 53 housed in the communication holes (the communication grooves 85c, 95c and the seal grooves 85d, 95d). Thus, the communication groove 85c is relatively deep in the up-down direction, the communication groove 95c is shallow, the seal groove 85d is deep, the seal groove 95d is shallow, the first outer walls 82 to 85 are high in the up-down direction, and the second outer walls 92 to 95 are low. FIG. 6A

[0093] In this embodiment, the outer peripheral surface of the seal member 54 is brought into close contact with the seal grooves 85d, 95d over the entire circumference to close the gap therebetween, thereby preventing the fluid such as the cooling medium from entering the interior of the harness block 70 from the gap between the motor wires 51 to 53 and the communication holes. However, the seal member 54 and the seal grooves 85d, 95d are not necessarily provided. Instead, the cover portions 51b to 53b of the motor wires 51 to 53 can be brought into close contact with the communication grooves 85c, 95c over the entire circumference to close the gap therebetween.

[0094] In any case, the cover portions 51b to 53b and the seal member 54 are likely to bite into the division faces Pl, P2 when the harness block 70 is assembled. In particular, in the case where the communication grooves 85c, 95c and the seal grooves 85d, 95d are semicircular and have the same size, the cover portions 51b to 53b and the seal member 54 pressed against the grooves and deformed in the left-right direction are likely to bite into the division faces Pl, P2.

[0095] In this embodiment, the communication grooves 85c and the seal grooves 85d are deep. Therefore, when the harness block 70 is assembled, the cover portions 51b to 53b and the seal member 54 are first housed in the communication grooves 85c and the seal grooves 85d, so that the inner walls of the communication grooves 85c and the seal grooves 85d restrict the deformation of the cover portions 51b to 53b and the seal member 54 in the left-right direction. As a result, the cover portions 51b to 53b and the seal member 54 are less likely to bite into the division faces Pl, P2 when the harness block 70 is assembled.

[0096] ​Furthermore, even when assembling the wire harness block 70, if the covering portions 51b to 53b are first housed in the shallow connecting groove 95c, the covering portions 51b to 53b are less likely to bite into the dividing surfaces P1 and P2. This is because, before the covering portions 51b to 53b are sandwiched between the connecting grooves 85c and 95c and deform in the left and right directions, the inner wall of the connecting groove 85c is located to the left and right of the covering portions 51b to 53b, and deformation can be restricted by using this inner wall.

[0097] like FIG. 4 and FIG. 6A As shown, when assembling the wiring harness block 70, if the motor wiring 51-53 housed in the first component 80 moves to a position further outward than the end face 85a, the covering portions 51b-53b, etc., can easily get caught in the dividing surfaces P1 and P2. In contrast, in this embodiment, by directing the motor wiring 51-53 along the extension groove 88a of the extension portion 88 protruding from the end face 85a, such movement can be restricted. As a result, the covering portions 51b-53b, etc., are less likely to get caught in the dividing surfaces P1 and P2 near the end faces 85a and 95a.

[0098] If the extension portion 88 is provided not only in the first component 80 but also in the second component 90, it is possible that the covering portions 51b to 53b, etc., could bite into the extension surfaces 88b and 88c, which are the dividing surfaces between the extension portions 88. However, in this embodiment, since the extension portion 88 is only present in the first component 80, such biting can be prevented.

[0099] Furthermore, since the first component 80 is provided with an extension portion 88, the extension groove 88a can be deepened in the same way as the connecting groove 85c. As a result, when assembling the wire harness block 70, it is easier to restrict the movement of the motor wiring 51 to 53 housed in the extension groove 88a, and it is further possible to prevent the covering portions 51b to 53b from getting stuck into the dividing surfaces P1 and P2 near the end faces 85a and 95a.

[0100] Furthermore, the limiting part 89 extends from the extension surface 88c on the right side of the extension part 88 along the end face 95a of the second component 90 where the extension part 88 is not provided. Therefore, even when the motor wiring 51-53 floats from the connecting slots 85c, 95c, and the extension slot 88a during the assembly of the wiring harness block 70, the limiting part 89 can restrict the movement of the floated motor wiring 51-53. Thus, the covering parts 51b-53b, etc., are less likely to bite into the dividing surfaces P1 and P2 near the end faces 85a and 95a.

[0101] It should be noted that the limiting part 89 may also extend from the extension surface 88b on the left side of the extension part 88. In this case, it is also possible to prevent the covering parts 51b to 53b from biting into the dividing surfaces P1 and P2 near the end faces 85a and 95a.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] In addition, since the first inner walls 86, 87 are partially omitted, even if the first individual spaces SAl to SA3 are surrounded by the high first outer walls 82 to 85, the first inner walls 86, 87, it is easy to perform the work of housing the connection terminals 61 to 63 into the first individual spaces SAl to SA3, the work of taking out the connection terminals 61 to 63 from the first individual spaces SAl to SA3.

[0107] Further, as shown in FIG. 7A and FIG. 7B In the first plate portion 81 and the second plate portion 91 in the up-down direction, the end (partition surface Pl) of the first outer wall 82 to 85 is located at a position more on the second plate portion 91 side than the up-down direction center of the end portion 61b to 63b of the connection terminal 61 to 63 in contact with the first plate portion 81. That is, the first outer wall 82 to 85 is formed higher with respect to the end portion 61b to 63b. Thereby, at the time of assembling the wire harness block 70, it is possible to further more easily stably hold the connection terminals 61 to 63 to the first member 80 by the high first outer wall 82 to 85.

[0108] In FIG. 6B and FIG. 7B In the assembled state, a part of the inner wall portion that divides the three individual spaces S 1, S2, S3 that individually house the three connection terminals 61 to 63 is formed by overlapping the first inner wall 86, 87 and the second inner wall 96, 97. In this overlapping portion, the insulation distance between the adjacent connection terminals 61 to 63 is not a straight line, but is circuitous between the first inner wall 86, 87 and the second inner wall 96, 97, and thus the insulation distance can be ensured. By ensuring this insulation distance, it is easy to bring the individual spaces S 1, S2, S3 close to each other, and thus it is easy to miniaturize the wire harness block 70.

[0109] The connection terminals 61 to 63 are formed so that the connection portion 61a to 63a is lower toward the second plate portion 91 side with respect to the end portion 61b to 63b, and the linking portion 61c to 63c is further lower toward the second plate portion 91 side with respect to the connection portion 61a to 63a. The inner wall portion at the position adjacent to this higher end portion 61b to 63b is formed by overlapping the first inner wall 86, 87 and the second inner wall 96, 97, and the insulation distance can be ensured as described above.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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. The wire harness block 70 is fitted to the coil holder 42 in a state in which the wire harness block 70 is positioned in the axial direction of the coil holder 42. FIG. 7A and FIG. 7B As shown in Figs. 1 and 2, 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 lower side 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 lower side 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.

[0114] In the second plate portion 91, a portion extending further outward than the second outer wall 94 is formed with a first through-hole 91a that penetrates the second plate portion 91 in the vertical direction. 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 the upward direction with respect to the coil holder 42.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] On the other hand, when the wire harness block 70 is fitted 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.

[0119] After the first through-hole 91a is inserted, the second plate portion 91 is tilted with the first through-hole 91a as a fulcrum, the wall portion 91d side of the second plate portion 91 is brought into contact with the axial end faces 42d, 42e of the coil holder 42, and the restriction face 91e is brought into opposition with the abutment face 42f. In this way, the harness block 70 can be easily fitted to the coil holder 42. As a result of the above, the easy fitting of the harness block 70 to the coil holder 42 and the difficult detachment after fitting can be both satisfied.

[0120] The protruding amount LI of the protruding portion 46 is more than half the thickness L2 of the protruding portion 45 inside the first through-hole 91a. In this way, since the protruding amount LI is ensured to some extent, the protruding portion 46 can be inhibited from falling out of the first through-hole 91a and thus the opposition of the second plate portion 91 and the protruding portion 46 can be released due to deformation of the protruding portion 45 and the protruding portion 46 or the like. Therefore, the harness block 70 can be made more difficult to detach from the coil holder 42.

[0121] 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 the entire circumference. Therefore, the second plate portion 91 around the first through-hole 91a can be inhibited from deforming, and the protruding portion 46 can be inhibited from falling out of the first through-hole 91a and thus the opposition of the second plate portion 91 and the protruding portion 46 can be released due to the deformation. Therefore, the harness block 70 can be made more difficult to detach from the coil holder 42.

[0122] Since the motor wirings 51 to 53 extending from the harness block 70 are bent along the circumferential direction around the shaft C, a force is applied to the harness block 70 toward the radially outer side by the elastic reaction force of the motor wirings 51 to 53 with respect to the coil holder 42 of the motor 30. The abutment face 42f is an inner peripheral wall face of the coil holder 42 toward the radially inner side, and therefore the restriction face 91e of the harness block 70 is pressed against the abutment face 42f by the elastic reaction force. In this way, the abutment of the abutment face 42f and the restriction face 91e can be easily maintained by the elastic reaction force of the motor wirings 51 to 53, and the positioning accuracy of the harness block 70 with respect to the coil holder 42 in the radial direction can be improved.

[0123] As shown in Figs. 1 and 2, the second plate portion 91 is formed in a substantially rectangular plate shape, and the first through-hole 91a is formed in the center of the second plate portion 91. The first through-hole 91a is formed in a substantially circular shape, and the protruding portion 45 of the coil holder 42 is inserted into the first through-hole 91a. The second plate portion 91 is formed in a substantially rectangular plate shape, and the first through-hole 91a is formed in the center of the second plate portion 91. The first through-hole 91a is formed in a substantially circular shape, and the protruding portion 45 of the coil holder 42 is inserted into the first through-hole 91a. FIG. 2 FIG. 7B As shown in Figs. 1 and 2, the second plate portion 91 is formed in a substantially rectangular plate shape, and the first through-hole 91a is formed in the center of the second plate portion 91. The first through-hole 91a is formed in a substantially circular shape, and the protruding portion 45 of the coil holder 42 is inserted into the first through-hole 91a. The second plate portion 91 is formed in a substantially rectangular plate shape, and the first through-hole 91a is formed in the center of the second plate portion 91. The first through-hole 91a is formed in a substantially circular shape, and the protruding portion 45 of the coil holder 42 is inserted into the first through-hole 91a.

[0124] ​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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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 restriction surface 91e and the abutting surface 42f abut, 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 restriction 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.

[0134] 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.

[0135] 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.

[0136] Next, the wire harness block 110 according to the third embodiment will be described with reference to FIG. 9A The third embodiment will be described. In the first embodiment, a 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, a 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. 11 is a perspective view of a wire harness block 110 according to the third embodiment.

[0137] The wire harness block 110 is configured in the same manner as the wire harness block 70 of the first embodiment, 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.

[0138] 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. 9) 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. 11. FIG. 4 The extension groove 112 extends the communication groove 95c toward the rear. The extension groove 112 is formed over the entire length in the front-rear direction of the extension portion 111. The extension groove 112 is formed in a groove shape that is open toward the rear. The extension groove 112 is formed in a rectangular shape in a plan view.FIG. 9A The extension surface 114 is shown by a dotted line.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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 to this, 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 attached 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.

[0144] 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.

[0145] 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.

[0146] 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).

[0147] 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.

[0148] 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.

[0149] 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.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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, 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.

[0154] 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.

[0155] In the above-described embodiments, the case where three separate spaces S1 to S3 are formed in the harness blocks 70, 100, 110, 120, 150 is 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.

[0156] 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.

[0157] In the above-described embodiments, the direction in which the restriction face 91e of the wall portion 91d faces and the direction in which the extension portion 46 extends from the protruding portion 45 are described as being toward the radially outer side, but are not necessarily limited thereto. If 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 the same when viewed from the upper-lower direction, these directions can also be the radially inner side, the circumferential direction, or the like. Note that the case where 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 when viewed from the upper-lower direction is not limited to this, 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.

[0158] 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 case where the abutment face 42f is the inner circumferential wall face of the inner circumferential wall portion 42c is not limited thereto, and the abutment face 42f can also be the inner circumferential wall face or the outer circumferential wall face of the outer cylindrical wall portion 42a. When the outer circumferential wall face of the outer cylindrical wall portion 42a is provided as the abutment face 42f, the face on the radially inner side of the wall portion 91d becomes the restriction face 91e.

[0159] In the above-described embodiments, the case where 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 is described, but the dimensional relationship of these can be appropriately changed.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] In the above-described embodiment, the case where a total of three extension portions 88 extend from the end faces 85a around the respective three communication holes, and a total of three extension portions 111 extend from the end faces 95a around the respective 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 extend from the end faces 85a around one or two of the three communication holes, and one or two extension portions 111 extend 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 divided for each communication hole.

[0164] In the above-described embodiments, the case where the split 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 split surfaces P1, P2 can pass through the axis of the motor wires 51 to 53, and the split surfaces P1, P2 can be located on the upper side (first member 80 side) than the axis. Note that in the case where the split 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 split surfaces P1, P2.

[0165] Explanation of Reference Signs

[0166] 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; 54: sealing member; 56: control circuit; 61, 62, 63: connection terminal; 70, 100, 110, 120, 150: wire harness block; 80: first member; 85a, 95a: end surface; 85b, 95b: side wall surface; 85c, 95c: communication groove (part of communication hole); 85d, 95d: sealing groove (part of communication hole); 88, 111: extension portion; 88a, 112: extension groove; 88b, 88c, 113, 114: extension surface; 89, 115: restriction portion; 90: second member; 121: first restriction portion; 122: second restriction portion; 130: air conditioning device; 140: refrigerator; P1, P2: split surface; S1, S2, S3: individual space.

Claims

1. An electrically insulated harness block for an electric compressor, the electric compressor including: a compression unit that compresses a fluid; a motor that drives the compression unit; a control circuit that controls driving of the motor; a plurality of motor wires that are formed by covering conductive wires with a covering portion made of an elastic body and are drawn from the motor; and a plurality of connection terminals that are respectively provided at distal ends of the plurality of motor wires and are electrically connected to the control circuit, the harness block including: a plurality of individual spaces that individually house the plurality of connection terminals; and a plurality of communication holes that individually house the plurality of motor wires by communicating the individual spaces with an end surface of an outside of the harness block and are in close contact with an outer circumferential surface of the covering portion or an outer circumferential surface of a ring-shaped sealing member that covers the entire circumference of the covering portion, the sealing member being made of an elastic body, the harness block being divided by a division surface that passes through the plurality of communication holes and the plurality of individual spaces into a first member and a second member, the division surface being located at a position that is more biased toward the first member side or the second member side than an axis of the motor wire housed in the communication hole.

2. The harness block according to claim 1, wherein one of the first member and the second member includes one or more extension portions that extend from the end surface around at least one of the plurality of communication holes, the extension portion including: an extension groove that extends the communication hole; and a pair of extension surfaces that are provided on both sides in a radial direction of the communication hole with respect to the extension groove and extend the division surface.

3. The harness block according to claim 2, wherein the division surface is located at a position that is more biased toward the second member side than an axis of the motor wire housed in the communication hole, and the extension portion is provided to the first member.

4. The harness block according to claim 2, wherein a restriction portion extends from at least one side of the pair of extension surfaces along the end surface of the other one of the first member and the second member in which the extension portion is not provided.

5. The harness block according to claim 4, wherein a plurality of the end surfaces that are individually opened by the plurality of communication holes are connected in a stepped manner via one or more side wall surfaces, and the restriction portion is provided to a side of the pair of extension surfaces that is farther from the side wall surface in a radial direction of the communication hole.

6. The harness block according to claim 4, wherein the motor wire that extends from the harness block is bent toward one side of the pair of extension surfaces, and the restriction portion extends from the extension surface of the one side.

7. The harness block according to claim 1, wherein both the first member and the second member include one or more extension portions that extend from the end surface around at least one of the plurality of communication holes, the extension portion of the first member and the extension portion of the second member overlap each other, and the extension portion includes: an extension groove that extends the communication hole; and a pair of extension surfaces that are provided on both sides in a radial direction of the communication hole with respect to the extension groove and extend the division surface. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ an elongated groove elongating the communication hole; and a pair of elongated surfaces disposed on both sides of the communication hole in a radial direction with respect to the elongated groove and elongating the division surface, a first restriction portion vertically raised from the elongated surface of the first member and a second restriction portion vertically raised from the elongated surface of the second member overlap along the elongated groove.

8. An electric motor equipped with the harness block according to any one of claims 1 to 7.

9. An electric compressor provided with the harness block according to any one of claims 1 to 7, the compression unit, the electric motor, the control circuit, the motor wiring, and the connection terminal.

10. An air conditioning device equipped with the electric compressor according to claim 9.

11. A refrigerator equipped with the electric compressor according to claim 9.

12. A vehicle-mounted device equipped with the electric compressor according to claim 9.

Images