Busbar assembly

Abstract

The utility model provides a busbar assembly which comprises a supporting and fixing piece and a multi-phase busbar, the supporting and fixing piece is arranged in an arc shape, and the supporting and fixing piece is divided into a first supporting and fixing part, a second supporting and fixing part and a third supporting and fixing part in the thickness direction of the supporting and fixing piece; the multi-phase bus bar comprises a first phase bus bar, a second phase bus bar and a third phase bus bar; the first phase bus bar comprises a first fixed embedding part; the second phase busbar comprises a second fixed embedding part; the third phase busbar comprises a third fixed embedding part; the first fixed embedding part, the second fixed embedding part and the third fixed embedding part are arranged in an arc shape; the first fixing and embedding part is arranged in the first supporting and fixing part, the second fixing and embedding part is arranged in the second supporting and fixing part, and the third fixing and embedding part is arranged in the third supporting and fixing part; and in the thickness extension direction of the supporting and fixing piece, at least two of the projection of the first fixed embedding part, the projection of the second fixed embedding part and the projection of the third fixed embedding part are partially overlapped. According to the technical scheme, the technical problem that in the prior art, a busbar assembly is large in size can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a busbar assembly. Background Art

[0002] Flat wire motors are increasingly favored by the public due to their outstanding high slot fill rate and high power density. The lead wires of flat wire motors are relatively complex. In order to reduce the difficulty of assembly, reduce the frequency of errors, and improve the appearance quality of the motor stator assembly, and also to achieve automated production, flat wire motors often use busbar components to shape and connect the stator lead wires.

[0003] The stator lead wire is generally located at the stator end face, which is annular and has limited space. The busbar assembly is generally installed at the stator end face, so the size of the space at the stator end face is related to the volume of the busbar assembly. The busbar assembly in the prior art is relatively large in volume, and the space at the stator end face needs to be increased accordingly, which in turn increases the volume of the overall structure of the motor. Utility Model Content

[0004] The utility model aims to provide a busbar to solve the technical problem of large busbar assembly volume in the prior art.

[0005] The utility model provides a bus bar, comprising:

[0006] A supporting member, wherein the supporting member is arranged in an arc shape and is divided into a first supporting portion, a second supporting portion and a third supporting portion along a thickness extension direction thereof;

[0007] A multi-phase busbar, the multi-phase busbar comprising a first-phase busbar, a second-phase busbar and a third-phase busbar, the first-phase busbar comprising a first phase connecting portion, a first lead-out portion and a first fixed embedded portion connected between the first phase connecting portion and the first lead-out portion; the second-phase busbar comprising a second phase connecting portion, a second lead-out portion and a second fixed embedded portion connected between the first phase connecting portion and the second lead-out portion; the third-phase busbar comprising a third phase connecting portion, a third lead-out portion and a third fixed embedded portion connected between the third phase connecting portion and the third lead-out portion;

[0008] The first fixed embedded portion, the second fixed embedded portion, and the third fixed embedded portion are arranged in an arc shape, and the arc extension direction of the first fixed embedded portion, the second fixed embedded portion, and the third fixed embedded portion is the same as the arc extension direction of the supporting member; the first fixed embedded portion is arranged in the first supporting portion, the second fixed embedded portion is arranged in the second supporting portion, and the third fixed embedded portion is arranged in the third supporting portion; and in the thickness extension direction of the supporting member, at least two of the projections of the first fixed embedded portion, the second fixed embedded portion, and the third fixed embedded portion overlap.

[0009] As an embodiment of the utility model, in the thickness extension direction of the supporting member, the inner and outer arc extension directions of the projection of the third fixed embedded part, the inner and outer arc extension directions of the projection of the second fixed embedded part, and the inner and outer arc extension directions of the projection of the first fixed embedded part overlap.

[0010] As an embodiment of the present utility model, the busbar assembly also includes a neutral point copper busbar, which includes a copper busbar main body and a plurality of neutral connection parts; the copper busbar main body is arranged in an arc shape, and the arc extension direction of the copper busbar main body is the same as the arc extension direction of the supporting fixture, the copper busbar main body is arranged in the supporting fixture, and the copper busbar main body is clamped between the first fixed embedded part and the second fixed embedded part, or, the copper busbar main body is clamped between the second fixed embedded part and the third fixed embedded part; a plurality of the neutral connection parts are connected to the copper busbar main body, and a plurality of the neutral connection parts all pass through the supporting fixture.

[0011] As an embodiment of the present utility model, the busbar assembly further comprises a plurality of support members, which are arranged at intervals on the copper busbar body, and the support members are used to support the first fixed embedded portion, the second fixed embedded portion, or the third fixed embedded portion.

[0012] As an embodiment of the utility model, the support member includes a sleeve portion and a supporting portion, the sleeve portion is sleeved on the copper busbar body, the supporting portion is connected to the sleeve portion, and the supporting portion is used to support the first fixed embedded portion or the second fixed embedded portion or the third fixed embedded portion.

[0013] As an embodiment of the present invention, a positioning groove is formed on an end surface of the support portion away from the sleeve portion, and the positioning groove is used to limit the first fixed embedding portion or the second fixed embedding portion or the third fixed embedding portion.

[0014] As an embodiment of the utility model, there are multiple sleeve parts, and each sleeve part is provided with the support part;

[0015] The support member further comprises a connecting portion, and the connecting portion is connected between two adjacent sleeve portions.

[0016] As an embodiment of the present utility model, the first phase busbar further includes a first bending portion, two ends of the first bending portion are respectively connected to the first fixed embedding portion and the first lead-out portion, and the first bending portion extends toward the outer side of the arc of the supporting member;

[0017] The second phase busbar further includes a second bent portion, the second bent portion is respectively connected to the second fixed embedding portion and the second lead-out portion, and the second bent portion extends toward the outer side of the arc of the supporting member;

[0018] The third phase busbar further includes a third bending portion, the third bending portion is respectively connected to the third fixed embedding portion and the third lead-out portion, and the third bending portion extends toward the arc outer side of the supporting member;

[0019] The supporting member further forms a fourth supporting portion, a fifth supporting portion and a sixth supporting portion, the fourth supporting portion is bent and connected to the first supporting portion, the fifth supporting portion is bent and connected to the second supporting portion, and the sixth supporting portion is bent and connected to the third supporting portion; the first bent portion is arranged in the fourth supporting portion, the second bent portion is arranged in the fifth supporting portion, and the third bent portion is arranged in the sixth supporting portion.

[0020] As an embodiment of the present utility model, the busbar assembly further comprises a retaining member, and the third lead-out portion, the second lead-out portion, and the first lead-out portion are arranged on the retaining member in a direction away from the supporting member;

[0021] The retaining member is also protruded to form a first supporting portion, a second supporting portion and a third supporting portion, the first supporting portion is arranged around the first lead-out portion close to the root of the retaining member, the second supporting portion is arranged around the second lead-out portion close to the root of the retaining member, and the third supporting portion is arranged around the third lead-out portion close to the root of the retaining member.

[0022] As an embodiment of the present invention, the retaining member is further formed with a plurality of fixing holes, and the fixing holes are used to realize the installation of the retaining member; the fixing holes are provided between the first lead-out portion and the second lead-out portion, and / or between the second lead-out portion and the third lead-out portion;

[0023] The retaining member is further protruded to form an enclosing portion, the enclosing portion is arranged between the first lead-out portion and the second lead-out portion, and / or between the second lead-out portion and the third lead-out portion, and the enclosing portion is arranged around the fixing hole.

[0024] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0025] In the present invention, the supporting member is divided into three layers along the thickness direction thereof, namely, a first supporting portion, a second supporting portion and a third supporting portion; the first fixed embedding portion, the second fixed embedding portion and the third fixed embedding portion are arranged in an arc shape, so that the first fixed embedding portion can be adaptively embedded in the first supporting portion, the second fixed embedding portion can be adaptively embedded in the second supporting portion, and the third fixed embedding portion can be adaptively embedded in the third supporting portion; and in the thickness extension direction of the supporting member, at least two of the projections of the first fixed embedding portion, the projection of the second fixed embedding portion and the projection of the third fixed embedding portion overlap, that is, the projection of the first fixed embedding portion The projection partially overlaps with the projection of the second fixed embedded part, and / or the projection of the second fixed embedded part at least partially overlaps with the projection of the third fixed embedded part, and / or the projection of the first fixed embedded part at least partially overlaps with the projection of the third fixed embedded part, thereby at least partially reusing the space in the radial direction of the supporting fixture, reducing the occupancy of the first fixed embedded part, the second fixed embedded part, and the third fixed embedded part in the radial direction of the supporting fixture, thereby reducing the occupancy of the supporting fixture in the radial direction of the stator end face, and reducing the volume of the motor. The use of this technical solution can solve the technical problem of the large volume of the busbar assembly in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of a busbar assembly in one embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of a supporting fixture in one embodiment of the utility model;

[0029] Figure 3 This is a schematic structural diagram of a multi-phase busbar, a neutral point copper busbar and a support member in an embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of a multi-phase busbar in one embodiment of the utility model;

[0031] Figure 5 This is a schematic structural diagram of a neutral point copper bar and a support member in an embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the exploded structure of the neutral point copper bar and the supporting member in one embodiment of the utility model;

[0033] Figure 7Schematic diagram of the structure of a holding member in one embodiment of the present invention.

[0034] Wherein: 100, busbar assembly; 10, supporting member; 11, first supporting part; 12, second supporting part; 13, third supporting part; 14, fourth supporting part; 15, fifth supporting part; 16, sixth supporting part; 20, multi-phase busbar; 21, first phase busbar; 211, first phase connecting part; 212, first lead-out part; 213, first fixed embedded part; 214, first bending part; 215, fourth bending part; 216, fifth bending part; 22, second phase busbar; 221, second phase connecting part; 222, second lead-out part; 223, second fixed embedded part; 224, second bending part; 22 5. Sixth bending portion; 226. Seventh bending portion; 23. Third phase busbar; 231. Third phase connecting portion; 232. Third lead-out portion; 233. Third embedded portion; 234. Third bending portion; 235. Eighth bending portion; 236. Ninth bending portion; 30. Neutral copper bar; 31. Copper bar body; 32. Neutral connecting portion; 40. Support member; 41. Sleeve portion; 411. Positioning column; 42. Support portion; 421. Positioning groove; 43. Connecting portion; 50. Holding member; 51. First surrounding supporting portion; 52. Second surrounding supporting portion; 53. Third surrounding supporting portion; 54. Fixing hole; 55. Enclosing portion. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] See also Figure 1-Figure 7 The embodiment of the utility model provides a busbar assembly 100, which can be applied to a flat wire motor to shape and connect the lead wires of the stator; wherein the flat wire motor can be applied to new energy vehicles.

[0039] The busbar assembly 100 includes a support fixture 10 and a multi-phase busbar 20; the support fixture 10 is arranged in an arc shape, so as to be arranged on the end surface of the stator in an adaptable manner; the multi-phase busbar 20 includes a first-phase busbar 21, a second-phase busbar 22 and a third-phase busbar 23, the first-phase busbar 21 includes a first-phase connecting portion 211, a first lead-out portion 212 and a first fixed embedded portion 213 connected between the first-phase connecting portion 211 and the first lead-out portion 212, the first-phase connecting portion 211 is used to be electrically connected to the first-phase lead-out wire of the stator, and the first lead-out portion 212 is used to be electrically connected to an external power supply device; the second-phase busbar 22 includes The second phase connection part 221, the second lead-out part 222 and the second fixed part 223 connected between the first phase connection part 211 and the second lead-out part 222, the second phase connection part 221 is used to be electrically connected to the second phase lead-out line of the stator, and the second lead-out part 222 is used to be electrically connected to an external power supply device; the third phase bus 23 includes a third phase connection part 231, a third lead-out part 232 and a third fixed part 233 connected between the third phase connection part 231 and the third lead-out part 232, the third phase connection part 231 is used to be electrically connected to the third phase lead-out line of the stator, and the third lead-out part 232 is used to be electrically connected to an external power supply device.

[0040] The supporting member 10 is arranged in an arc shape, and the supporting member 10 is divided into a first supporting portion 11, a second supporting portion 12, and a third supporting portion 13 along the thickness extension direction thereof. The first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233 are arranged in an arc shape, and the arc extension direction of the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233 is the same as the arc extension direction of the supporting member 10; the first fixed embedded portion 213 is arranged in the first supporting portion 11, the second fixed embedded portion 223 is arranged in the second supporting portion 12, and the third fixed embedded portion 233 is arranged in the third supporting portion 13, and in the thickness extension direction of the supporting member 10, at least two of the projections of the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233 partially overlap.

[0041] In the present invention, the supporting member 10 is divided into three layers along its thickness direction, namely, the first supporting portion 11, the second supporting portion 12 and the third supporting portion 13; the first fixed embedded portion 213, the second fixed embedded portion 223 and the third fixed embedded portion 233 are arranged in an arc shape, so that the first fixed embedded portion 213 can be adaptively embedded in the first supporting portion 11, the second fixed embedded portion 223 can be adaptively embedded in the second supporting portion 12, and the third fixed embedded portion 233 can be adaptively embedded in the third supporting portion 13; and in the thickness extension direction of the supporting member 10, at least two of the projections of the first fixed embedded portion 213, the projection of the second fixed embedded portion 223 and the projection of the third fixed embedded portion 233 overlap, that is, the first fixed embedded portion 213 is substantially the same as the first fixed embedded portion 213, and the second fixed embedded portion 223 is substantially the same as the third fixed embedded portion 233. The projection of the embedded portion 213 partially overlaps with the projection of the second fixed embedded portion 223, and / or the projection of the second fixed embedded portion 223 at least partially overlaps with the projection of the third fixed embedded portion 233, and / or the projection of the first fixed embedded portion 213 at least partially overlaps with the projection of the third fixed embedded portion 233. By at least partially reusing the space in the radial direction of the supporting fixture 10, the occupancy of the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233 in the radial direction of the supporting fixture 10 is reduced, thereby reducing the occupancy of the supporting fixture 10 in the radial direction of the stator end face, which can reduce the volume of the motor. The use of this technical solution can solve the technical problem of the large volume of the busbar assembly 100 in the prior art.

[0042] In some specific embodiments, the first phase busbar 21 , the second phase busbar 22 and the third phase busbar 23 are made of enameled wire.

[0043] In some specific embodiments, the first phase busbar 21 , the second phase busbar 22 , and the third phase busbar 23 are respectively a U-phase busbar, a V-phase busbar, and a W-phase busbar.

[0044] In some specific embodiments, the first phase busbar 21 , the second phase busbar 22 and the third busbar are made of enameled wire.

[0045] The first phase lead wire, the second phase lead wire, and the third phase lead wire on the motor stator are respectively the U phase lead wire, the V phase lead wire, and the W phase lead wire.

[0046] In some specific embodiments, see Figure 1 and Figure 4 The first phase busbar 21 further includes a first bent portion 214, the two ends of which are respectively connected to the first fixed embedded portion 213 and the first lead-out portion 212, and the first bent portion 214 extends toward the arc outer side of the support member 10. In this embodiment, by providing the first bent portion 214 between the first fixed embedded portion 213 and the first lead-out portion 212, and limiting the extension direction of the first bent portion 214 so that it extends along the arc outer side of the support member 10, the first lead-out portion 212 connected to the first bent portion 214 can be located at the circumferential side of the stator, so as to facilitate the connection of the first lead-out portion 212 with the external power supply device.

[0047] In some specific embodiments, see Figure 1 , Figure 2 as well as Figure 4 The supporting member 10 is further formed with a fourth supporting portion 14, the fourth supporting portion 14 is bent and connected to the first supporting portion 11, and the first bent portion 214 is arranged in the fourth supporting portion 14. By providing the fourth supporting portion 14 adapted to the first bent portion 214, the supporting member 10 is installed on the first bent portion 214 through the fourth supporting portion 14, thereby improving the installation stability of the supporting member 10 on the first phase busbar 21.

[0048] In some specific embodiments, see Figure 1 and Figure 4 The second phase busbar 22 further includes a second bent portion 224, which is connected to the second fixed embedded portion 223 and the second lead-out portion 222, respectively, and extends to the arc outer side of the support member 10. In this embodiment, the second bent portion 224 is provided between the second fixed embedded portion 223 and the second lead-out portion 222, and the extension direction of the second bent portion 224 is restricted so that the second lead-out portion 222 extends along the arc outer side of the support member 10, so that the second lead-out portion 222 connected to the second bent portion 224 can be located on the circumferential side of the stator, so as to facilitate the electrical connection between the second lead-out portion 222 and the external power supply device.

[0049] In some specific embodiments, see Figure 1 , Figure 2 as well as Figure 4The supporting fixture 10 is further formed with a fifth supporting portion 15, the fifth supporting portion 15 is bent and connected to the second supporting portion 12, and the second bent portion 224 is arranged in the fifth supporting portion 15. By providing the fifth supporting portion 15 adapted to the second bent portion 224, the supporting fixture 10 is installed on the second bent portion 224 through the fifth supporting portion 15, thereby improving the installation stability of the supporting fixture 10 on the second phase busbar 22.

[0050] In some specific embodiments, see Figure 1 and Figure 4 The third phase busbar 23 further includes a third bending portion 234, which is connected to the third fixed embedded portion 233 and the third lead-out portion 232 respectively, and the third bending portion 234 extends to the arc outer side of the support member 10. In this embodiment, by providing the third bending portion 234 between the third fixed embedded portion 233 and the third lead-out portion 232, and limiting the extension direction of the third bending portion 234 so that it extends along the arc outer side of the support member 10, the third lead-out portion 232 connected to the third bending portion 234 can be located on the circumferential side of the stator, so as to facilitate the electrical connection between the third lead-out portion 232 and the external power supply device.

[0051] In some specific embodiments, see Figure 1 , Figure 2 as well as Figure 4 The supporting member 10 is further formed with a sixth supporting portion 16, which is bent and connected to the third supporting portion 13, and the third bent portion 234 is arranged in the sixth supporting portion 16. By providing the sixth supporting portion 16 adapted to the third bent portion 234, the supporting member 10 can be installed on the third bent portion 234 through the sixth supporting portion 16, thereby improving the installation stability of the supporting member 10 on the third phase busbar 23.

[0052] In some specific embodiments, see Figure 1 and Figure 4 The first phase busbar 21 further includes a fourth bent portion 215 and a fifth bent portion 216, one end of the fourth bent portion 215 is connected to one end of the fifth bent portion 216, the other end of the fourth bent portion 215 is connected to the third bent portion 234, and the other end of the fifth bent portion 216 is connected to the first lead-out portion 212; wherein the extension direction of the fourth bent portion 215 is the same as the direction of the support fixture 10 relative to the motor stator, and the fifth bent portion 216 extends toward the outer side of the arc away from the support fixture 10; thereby improving the layout flexibility of the first lead-out portion 212.

[0053] In some specific embodiments, see Figure 1 and Figure 4The second phase busbar 22 further includes a sixth bent portion 225 and a seventh bent portion 226, one end of the sixth bent portion 225 is connected to one end of the seventh bent portion 226, the other end of the sixth bent portion 225 is connected to the fourth bent portion 215, and the other end of the seventh bent portion 226 is connected to the second lead-out portion 222, wherein the extension direction of the sixth bent portion 225 is the same as the direction of the support fixture 10 relative to the motor stator, and the seventh bent portion 226 extends in an arc outer direction away from the support fixture 10; thereby improving the layout flexibility of the second lead-out portion 222.

[0054] In some specific embodiments, see Figure 1 and Figure 4 The third phase busbar 23 also includes an eighth bent portion 235 and a ninth bent portion 236, one end of the eighth bent portion 235 is connected to one end of the ninth bent portion 236, the other end of the eighth bent portion 235 is connected to the third bent portion 234, and the other end of the ninth bent portion 236 is connected to the third lead-out portion 232; wherein, the extension direction of the eighth bent portion 235 is the same as the direction of the support fixture 10 relative to the motor stator, and the ninth bent portion 236 extends toward the arc outer side of the support fixture 10; thereby improving the layout flexibility of the third lead-out portion 232.

[0055] In some specific embodiments, see Figure 1 and Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the second fixed embedded portion 223 overlap with the inner and outer arc extension directions of the projection of the first fixed embedded portion 213 .

[0056] In this embodiment, the space occupied by the first fixed embedded portion 213 in the radial direction of the supporting member 10 is reused to achieve the installation of the second fixed embedded portion 223 relative to the supporting member 10, thereby avoiding the need for the second fixed embedded portion 223 to occupy additional space in the radial direction of the supporting member 10 during installation, thereby reducing the width of the supporting member 10 in its radial direction, reducing the volume of the supporting member 10, and achieving a reduction in the overall volume of the busbar assembly 100.

[0057] In some specific embodiments, see Figure 1 and Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the third fixed embedded portion 233 overlap with the inner and outer arc extension directions of the projection of the second fixed embedded portion 223 .

[0058] In this embodiment, the space occupied by the second fixing portion 223 in the radial direction of the supporting member 10 is reused to achieve the installation of the third fixing portion 233 relative to the supporting member 10, thereby avoiding the need for the third fixing portion 233 to occupy additional space in the radial direction of the supporting member 10 during installation, thereby reducing the width of the supporting member 10 in its radial direction, reducing the volume of the supporting member 10, and achieving a reduction in the overall volume of the busbar assembly 100.

[0059] In some specific embodiments, see Figure 1 and Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the third fixed embedded portion 233 overlap with the inner and outer arc extension directions of the projection of the first fixed embedded portion 213 .

[0060] In this embodiment, the space occupied by the first fixed embedded portion 213 in the radial direction of the supporting member 10 is reused to achieve the installation of the third fixed embedded portion 233 relative to the supporting member 10, thereby avoiding the need for the third fixed embedded portion 233 to occupy additional space in the radial direction of the supporting member 10 during installation, thereby reducing the width of the supporting member 10 in its radial direction, reducing the volume of the supporting member 10, and achieving a reduction in the overall volume of the busbar assembly 100.

[0061] In some specific embodiments, see Figure 1 and Figure 3 , the inner and outer arc extending directions of the projection of the third fixed embedded portion 233 , the inner and outer arc extending directions of the projection of the second fixed embedded portion 223 , and the inner and outer arc extending directions of the projection of the first fixed embedded portion 213 overlap.

[0062] In this embodiment, the space occupied by the first fixed embedded portion 213 in the radial direction of the supporting member 10 is reused, and the space is used to realize the installation of the second fixed embedded portion 223 and the third fixed embedded portion 233 relative to the supporting member 10, thereby avoiding the need for the second fixed embedded portion 223 and the third fixed embedded portion 233 to occupy additional space in the radial direction of the supporting member 10 when installing, thereby greatly reducing the width of the supporting member 10 in its radial direction, reducing the volume of the supporting member 10, and realizing a significant reduction in the overall volume of the busbar assembly 100.

[0063] In one embodiment, see Figure 1 and Figure 3The busbar assembly 100 further includes a neutral copper bar 30, which includes a copper bar body 31 and a plurality of neutral connection parts 32; the copper bar body 31 is disposed in the support fixture 10, and a plurality of neutral connection parts 32 are connected to the copper bar body 31, and the plurality of neutral connection parts 32 are all disposed through the support fixture 10. The copper bar body 31 is used to realize the installation of the plurality of neutral connection parts 32 relative to the support fixture 10, and the neutral connection part 32 is used to be electrically connected to the neutral lead wire of the motor stator.

[0064] In some specific embodiments, the copper bar body 31 is arranged in an arc shape, and the arc extension direction of the copper bar body 31 is the same as the arc extension direction of the support fixture 10. By arranging the copper bar body 31 in an arc shape, the copper bar body 31 can be embedded in the support fixture 10 in an adaptable manner.

[0065] In some specific embodiments, see Figure 1 and Figure 3 The copper bar body 31 is sandwiched between the first fixed embedding portion 213 and the second fixed embedding portion 223, or, the copper bar body 31 is sandwiched between the second fixed embedding portion 223 and the third fixed embedding portion 233. By limiting the specific installation position of the copper bar body 31 relative to the support fixture 10, it is sandwiched between the first fixed embedding portion 213 and the second fixed embedding portion 223, or sandwiched between the second fixed embedding portion 223 and the third fixed embedding portion 233, so that the copper bar body 31 is arranged in the support fixture 10 along the thickness extension direction of the support fixture 10 relative to the multi-phase busbar 20, thereby improving the compactness and stability of the copper bar body 31 relative to the support fixture 10 and the multi-phase busbar 20.

[0066] In some specific embodiments, the copper busbar body 31 is sandwiched between the first fixed embedding portion 213 and the second fixed embedding portion 223 .

[0067] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting member 10 , the projection of the copper busbar body 31 at least partially overlaps with one of the projections of the first fixed embedded portion 213 , the projection of the second fixed embedded portion 223 , and the projection of the third fixed embedded portion 233 .

[0068] In this embodiment, at least part of the space occupied by at least one of the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233 in the radial direction of the support fixture 10 is reused, thereby reducing the space occupied by the copper busbar body 31 in the radial direction of the support fixture 10, thereby reducing the space occupied by the support fixture 10 in the radial direction of the stator end face, and reducing the volume of the motor.

[0069] The projection of the copper bar body 31 overlaps at least partially with the projection of the first fixed embedded part 213, the projection of the second fixed embedded part 223, and the projection of the third fixed embedded part 233. It can be understood that: the projection of the copper bar body 31 overlaps at least partially with the projection of the first fixed embedded part 213, or the projection of the copper bar body 31 overlaps at least partially with the projection of the second fixed embedded part 223, or the projection of the copper bar body 31 overlaps at least partially with the projection of the third fixed embedded part 233, or the projection of the copper bar body 31 overlaps at least partially with the projection of the first fixed embedded part 213. The projection of the fixed embedded part 213 and the projection of the second fixed embedded part 223 at least partially overlap, or the projection of the copper bar body 31 overlaps with the projection of the first fixed embedded part 213 and the projection of the third fixed embedded part 233 at least partially, or the projection of the copper bar body 31 overlaps with the projection of the second fixed embedded part 223 and the projection of the third fixed embedded part 233 at least partially, or the projection of the copper bar body 31 overlaps with the projection of the first fixed embedded part 213, the projection of the second fixed embedded part 223 and the projection of the third fixed embedded part 233 at least partially.

[0070] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the copper busbar body 31 overlap with the inner and outer arc extension directions of the projection of the first fixed embedding portion 213 .

[0071] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the copper bar body 31 overlap with the inner and outer arc extension directions of the projection of the second fixing portion 223 .

[0072] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the copper busbar body 31 overlap with the inner and outer arc extension directions of the projection of the third fixing portion 233 .

[0073] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the copper bar body 31 overlap with the inner and outer arc extension directions of the projection of the first fixed embedded portion 213 and the inner and outer arc extension directions of the projection of the second fixed embedded portion 223 .

[0074] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting member 10 , the inner and outer arc extension directions of the projection of the copper busbar body 31 overlap with the inner and outer arc extension directions of the projection of the first fixed embedded portion 213 and the inner and outer arc extension directions of the projection of the third fixed embedded portion 233 .

[0075] In some specific embodiments, see Figure 3In the thickness extension direction of the support member 10, the inner and outer arc extension direction of the projection of the copper bar body 31 overlaps with the inner and outer arc extension direction of the projection of the second fixed embedded portion 223 and the inner and outer arc extension direction of the projection of the third fixed embedded portion 233.

[0076] In some specific embodiments, see Figure 3 In the thickness extension direction of the supporting fixture 10, the inner and outer arc extension directions of the projection of the copper busbar body 31 overlap with the inner and outer arc extension directions of the projection of the first fixed embedded portion 213, the inner and outer arc extension directions of the projection of the second fixed embedded portion 223, and the inner and outer arc extension directions of the projection of the third fixed embedded portion 233.

[0077] In one embodiment, see Figure 3 , Figure 5 as well as Figure 6 The busbar assembly 100 further includes a plurality of support members 40 , which are spaced apart on the copper busbar body 31 , and the support members 40 are used to support the first fixed embedded portion 213 or the second fixed embedded portion 223 or the third fixed embedded portion 233 .

[0078] In this embodiment, a plurality of support members 40 are arranged at intervals on the copper busbar body 31, and the first fixed embedded portion 213 or the second fixed embedded portion 223 or the third fixed embedded portion 233 is supported by the support member 40 to stabilize the position of the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233, so as to facilitate the injection molding of the supporting member 10 relative to the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233.

[0079] Among them, the support member 40 is used to support the first fixed embedded part 213 or the second fixed embedded part 223 or the third fixed embedded part 233, which can be understood as: multiple support members 40 can all be used to support the first fixed embedded part 213; or, multiple support members 40 can all be used to support the second fixed embedded part 223; or, multiple support members 40 can all be used to support the third fixed embedded part 233; or, one part of the multiple support members 40 is used to support the first fixed embedded part 213, and another part is used to support the second fixed embedded part 223; or, one part of the multiple support members 40 is used to support the first fixed embedded part 213, and another part is used to support the third fixed embedded part 233; or, one part of the multiple support members 40 is used to support the second fixed embedded part 223, and another part is used to support the third fixed embedded part 233; or, one part of the multiple support members 40 is used to support the first fixed embedded part 213, and another part is used to support the second fixed embedded part 223, and another part is used to support the third fixed embedded part 233.

[0080] In some specific embodiments, see Figure 6The support member 40 includes a sleeve portion 41 and a support portion 42. The sleeve portion 41 is sleeved on the copper busbar body 31, and the support portion 42 is connected to the sleeve portion 41. The support portion 42 is used to support the first fixed embedded portion 213, the second fixed embedded portion 223, or the third fixed embedded portion 233. In this embodiment, the sleeve portion 41 is used to achieve stable installation of the support member 40 relative to the copper busbar body 31, and the support portion 42 is used to achieve support of the support member 40 relative to the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233.

[0081] It should be noted that the sleeve portion 41 can be set to different shapes according to needs; the support portion 42 can be set to different shapes and heights according to needs.

[0082] In some specific embodiments, one or more supporting portions 42 may be provided on each sleeve portion 41 .

[0083] In some specific embodiments, see Figure 6 The end surface of the support portion 42 away from the sleeve portion 41 forms a positioning groove 421, and the positioning groove 421 is used to limit the first fixed embedded portion 213 or the second fixed embedded portion 223 or the third fixed embedded portion 233. The end surface of the support portion 42 away from the sleeve portion 41 abuts against and supports the first fixed embedded portion 213 or the second fixed embedded portion 223 or the third fixed embedded portion 233. By providing the positioning groove 421 on the end surface of the support portion 42 away from the sleeve portion 41, the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233 can be positioned by the positioning groove 421, so that the support portion 42 can better support the first fixed embedded portion 213, the second fixed embedded portion 223, and the third fixed embedded portion 233.

[0084] In some specific embodiments, see Figure 5 and Figure 6 , there are multiple sleeve parts 41, each of which is provided with the support part 42; the support member 40 also includes a connecting part 43, and the connecting part 43 is connected between two adjacent sleeve parts 41. By providing a support member 40 including multiple sleeve parts 41, and each sleeve part 41 is provided with a supporting part 42, it is achieved that one support member 40 can support different parts of the first fixed embedded part 213, the second fixed embedded part 223, and the third fixed embedded part in the arc-shaped extension direction of the supporting member 10, thereby improving the supporting stability of the support member 40, and at the same time, simplifying the installation of the support member 40 relative to the copper busbar body 31.

[0085] In some specific embodiments, see Figure 6The sleeve portion 41 is located on the inner and outer arc sides of the copper busbar body 31 and has two protruding side surfaces formed with positioning posts 411, which are used to abut against the inner wall of the support fixture 10. The positioning posts 411 abut against the inner wall of the support fixture 10, thereby improving the position stability of the sleeve portion 41 relative to the copper busbar body 31 and the support fixture 10 during injection molding of the support fixture 10.

[0086] In one embodiment, see Figure 1 and Figure 7 The busbar assembly 100 further includes a retaining member 50, and the third lead-out portion 232, the second lead-out portion 222, and the first lead-out portion 212 are arranged on the retaining member 50 in a direction away from the supporting member 10. By providing the retaining member 50 to shape and arrange the first lead-out portion 212, the second lead-out portion 222, and the third lead-out portion 232, on the one hand, the overall structural stability of the busbar assembly 100 is improved, and on the other hand, it is beneficial to connect the first lead-out portion 212, the second lead-out portion 222, and the third lead-out portion 232 with an external power supply device.

[0087] In some specific embodiments, see Figure 1 and Figure 7 The retaining member 50 has a first end and a second end that are oppositely disposed, and the third lead-out portion 232 , the second lead-out portion 222 , and the first lead-out portion 212 are arranged on the first end.

[0088] In some specific embodiments, see Figure 1 The fifth bent portion 216 is inserted into the retaining member 50 , thereby improving the stability of the first lead-out portion 212 being disposed on the retaining member 50 .

[0089] In some specific embodiments, see Figure 1 The seventh bent portion 226 is inserted into the retaining member 50 , thereby improving the stability of the second lead-out portion 222 being arranged on the retaining member 50 .

[0090] In some specific embodiments, see Figure 1 The ninth bent portion 236 is inserted into the retaining member 50 , thereby improving the stability of the third lead-out portion 232 being arranged on the retaining member 50 .

[0091] In some specific embodiments, see Figure 1 and Figure 7 The retaining member 50 is also protruded to form a first supporting portion 51, which is arranged around the first lead-out portion 212 near the root of the retaining member 50. The first supporting portion 51 is provided to enclose and restrict the circumference of the root of the first lead-out portion 212, thereby improving the stability of the first lead-out portion 212 relative to the retaining member 50.

[0092] In some specific embodiments, see Figure 1 and Figure 7 The retaining member 50 is also protruded to form a second supporting portion 52, and the second supporting portion 52 is arranged around the second lead-out portion 222 near the root of the retaining member 50. The second supporting portion 52 is provided to enclose and restrict the circumference of the root of the second lead-out portion 222, thereby improving the stability of the second lead-out portion 222 relative to the retaining member 50.

[0093] In some specific embodiments, see Figure 1 and Figure 7 The retaining member 50 is also protruded to form a third supporting portion 53, and the third supporting portion 53 is arranged around the third lead-out portion 232 near the root of the retaining member 50. The third supporting portion 53 is provided to enclose and restrict the peripheral side of the root of the third lead-out portion 232, thereby improving the stability of the third lead-out portion 232 relative to the retaining member 50.

[0094] In some specific embodiments, see Figure 1 and Figure 7 The retaining member 50 is also formed with a plurality of fixing holes 54, and the fixing holes 54 are used to realize the installation of the retaining member 50. Specifically, screws or the like are used to pass through the fixing holes 54 and connect with the motor housing to realize the installation of the retaining member relative to the motor housing.

[0095] In some specific embodiments, see Figure 1 and Figure 7 The fixing hole 54 is provided between the first lead-out portion 212 and the second lead-out portion 222, and / or between the second lead-out portion 222 and the third lead-out portion 232. Therefore, at least one of the fixing hole 54 is provided between the first lead-out portion 212 and the second lead-out portion 222 and between the second lead-out portion 222 and the third lead-out portion 232, thereby improving the stability of the mounting of the retaining member 50.

[0096] In some specific embodiments, see Figure 1 and Figure 7 There are two fixing holes 54 , one of which is opened between the first lead-out portion 212 and the second lead-out portion 222 , that is, the fixing hole 54 is opened on the first end; and the other fixing hole 54 is opened on the second end, thereby improving the installation stability of the retaining member 50 .

[0097] In some specific embodiments, see Figure 1 and Figure 7The retaining member 50 is also formed with a raised enclosure 55, and the enclosure 55 is disposed between the first lead-out portion 212 and the second lead-out portion 222, and / or between the second lead-out portion 222 and the third lead-out portion 232, and the enclosure 55 is disposed around the fixing hole 54. Therefore, when the screw passes through the fixing hole 54 to install the retaining member 50, the raised enclosure 55 disposed around the fixing hole 54 can increase the creepage distance between the screw and the first lead-out portion 212, the second lead-out portion 222, and the third lead-out portion 232, so that the busbar assembly 100 can work stably.

[0098] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A busbar assembly, It is characterized in that include: A supporting member, wherein the supporting member is arranged in an arc shape and is divided into a first supporting portion, a second supporting portion and a third supporting portion along a thickness extension direction thereof; A multi-phase busbar, the multi-phase busbar comprising a first-phase busbar, a second-phase busbar and a third-phase busbar, the first-phase busbar comprising a first phase connecting portion, a first lead-out portion and a first fixed embedded portion connected between the first phase connecting portion and the first lead-out portion; the second-phase busbar comprising a second phase connecting portion, a second lead-out portion and a second fixed embedded portion connected between the first phase connecting portion and the second lead-out portion; the third-phase busbar comprising a third phase connecting portion, a third lead-out portion and a third fixed embedded portion connected between the third phase connecting portion and the third lead-out portion; The first fixed embedded portion, the second fixed embedded portion, and the third fixed embedded portion are arranged in an arc shape, and the arc extension direction of the first fixed embedded portion, the second fixed embedded portion, and the third fixed embedded portion is the same as the arc extension direction of the supporting member; the first fixed embedded portion is arranged in the first supporting portion, the second fixed embedded portion is arranged in the second supporting portion, and the third fixed embedded portion is arranged in the third supporting portion; and in the thickness extension direction of the supporting member, at least two of the projections of the first fixed embedded portion, the second fixed embedded portion, and the third fixed embedded portion overlap.

2. The busbar assembly according to claim 1, It is characterized in that In the thickness extension direction of the supporting member, the inner and outer arc extension directions of the projection of the third fixing portion, the inner and outer arc extension directions of the projection of the second fixing portion, and the inner and outer arc extension directions of the projection of the first fixing portion overlap.

3. The busbar assembly according to claim 1, It is characterized in that The busbar assembly also includes a neutral point copper bar, which includes a copper bar body and a plurality of neutral connection parts; the copper bar body is arranged in an arc shape, and the arc extension direction of the copper bar body is the same as the arc extension direction of the supporting fixture, the copper bar body is arranged in the supporting fixture, and the copper bar body is clamped between the first fixed embedded part and the second fixed embedded part, or, the copper bar body is clamped between the second fixed embedded part and the third fixed embedded part; a plurality of the neutral connection parts are connected to the copper bar body, and the plurality of the neutral connection parts all pass through the supporting fixture.

4. The busbar assembly according to claim 3, It is characterized in that The busbar assembly further includes a plurality of support members, which are arranged on the copper busbar body at intervals, and the support members are used to support the first fixed embedding portion, the second fixed embedding portion, or the third fixed embedding portion.

5. The busbar assembly according to claim 4, It is characterized in that The support member includes a sleeve portion and a support portion, the sleeve portion is sleeved on the copper busbar body, the support portion is connected to the sleeve portion, and the support portion is used to support the first fixed embedded portion or the second fixed embedded portion or the third fixed embedded portion.

6. The busbar assembly according to claim 5, It is characterized in that A positioning groove is formed on the end surface of the supporting portion away from the sleeve portion, and the positioning groove is used to limit the first fixed embedding portion, the second fixed embedding portion, or the third fixed embedding portion.

7. The busbar assembly according to claim 5, It is characterized in that There are multiple sleeve parts, and each sleeve part is provided with the support part; The support member further comprises a connecting portion, and the connecting portion is connected between two adjacent sleeve portions.

8. The busbar assembly according to any one of claims 1 to 7, It is characterized in that The first phase busbar further includes a first bending portion, two ends of which are respectively connected to the first fixed embedding portion and the first lead-out portion, and the first bending portion extends toward the outer side of the arc of the supporting member; The second phase busbar further includes a second bent portion, the second bent portion is respectively connected to the second fixed embedding portion and the second lead-out portion, and the second bent portion extends toward the outer side of the arc of the supporting member; The third phase busbar further includes a third bending portion, the third bending portion is respectively connected to the third fixed embedding portion and the third lead-out portion, and the third bending portion extends toward the arc outer side of the supporting member; The supporting member further forms a fourth supporting portion, a fifth supporting portion and a sixth supporting portion, the fourth supporting portion is bent and connected to the first supporting portion, the fifth supporting portion is bent and connected to the second supporting portion, and the sixth supporting portion is bent and connected to the third supporting portion; the first bent portion is arranged in the fourth supporting portion, the second bent portion is arranged in the fifth supporting portion, and the third bent portion is arranged in the sixth supporting portion.

9. The busbar assembly according to any one of claims 1 to 7, It is characterized in that The busbar assembly further includes a retaining member, and the third lead-out portion, the second lead-out portion, and the first lead-out portion are arranged on the retaining member in a direction away from the supporting member; The retaining member is also protruded to form a first supporting portion, a second supporting portion and a third supporting portion, the first supporting portion is arranged around the first lead-out portion close to the root of the retaining member, the second supporting portion is arranged around the second lead-out portion close to the root of the retaining member, and the third supporting portion is arranged around the third lead-out portion close to the root of the retaining member.

10. The busbar assembly according to claim 9, It is characterized in that The holding member is further formed with a plurality of fixing holes, and the fixing holes are used to realize the installation of the holding member; the fixing holes are arranged between the first lead-out portion and the second lead-out portion, and / or between the second lead-out portion and the third lead-out portion; The retaining member is further protruded to form an enclosing portion, the enclosing portion is arranged between the first lead-out portion and the second lead-out portion, and / or between the second lead-out portion and the third lead-out portion, and the enclosing portion is arranged around the fixing hole.

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