Busbar structure and motor

Abstract

The utility model provides a busbar structure and a motor. The busbar structure comprises a fixing member, a first phase busbar, a second phase busbar and a third phase busbar. The fixing piece is divided into a first fixing part and a second fixing part in the thickness direction of the fixing piece. The first phase busbar comprises a first extension part; the second phase busbar comprises a second extension part; the third phase busbar comprises a third extension part; the first extension part, the second extension part and the third extension part are arranged in an arc shape, and the arc extension directions of the first extension part, the second extension part and the third extension part are the same as the arc extension direction of the fixing piece; the first extension part and the third extension part are both arranged in the first fixing part, and the third extension part is located on the outer arc side of the first extension part; the second extension part is arranged in the second fixing part, and the orthographic projection of the second extension part and the orthographic projection of the third extension part are partially overlapped in the thickness extension direction of the fixing piece; the technical problem that in the prior art, a busbar structure occupies a large space is solved.

Description

Technical Field

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

[0002] With the rapid growth of the new energy vehicle market and the rapid development of new energy vehicle technology, the electric drive system is gradually moving towards high speed, miniaturization and high efficiency. At the same time, the whole vehicle has put forward higher requirements on the cost and performance of the electric drive system. Therefore, the motor assembly is gradually developing towards miniaturization and integration.

[0003] 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, improve the appearance quality of the motor stator assembly, and also to achieve automated production, flat wire motors often use a bus structure to shape and connect their lead wires.

[0004] When the multi-phase busbars of the busbar structure in the prior art are arranged on the end surface of the electronic stator, a large space is occupied, which leads to a large volume of the overall structure of the motor. Utility Model Content

[0005] The utility model aims to provide a busbar structure and a motor to solve the technical problem in the prior art that the busbar structure occupies a large space.

[0006] In a first aspect, the utility model provides a busbar, comprising:

[0007] A fixing member, wherein the fixing member is arranged in an arc shape and is divided into a first fixing portion and a second fixing portion along a thickness direction thereof;

[0008] A first phase busbar, the first phase busbar comprising a first extension portion, and a first phase connecting portion and a first lead-out portion connected at two ends of the first extension portion;

[0009] A second phase busbar, the second phase busbar comprising a second extension portion, and a second phase connecting portion and a second lead-out portion connected at two ends of the second extension portion;

[0010] A third phase busbar, the third phase busbar comprising a third extension portion, and a third phase connecting portion and a third lead-out portion connected to both ends of the second extension portion;

[0011] Among them, the first extension portion, the second extension portion, and the third extension portion are all arranged in an arc shape, and the arc extension direction of the first extension portion, the second extension portion, and the third extension portion is the same as the arc extension direction of the fixing member; the first extension portion and the third extension portion are both arranged in the first fixing portion, and the third extension portion is located on the outer arc side of the first extension portion; the second extension portion is arranged in the second fixing portion, and in the thickness extension direction of the fixing member, the orthographic projection of the second extension portion partially overlaps with the orthographic projection of the third extension portion.

[0012] As an embodiment of the utility model, the busbar structure also includes a neutral point copper busbar, which includes a copper busbar main body and a plurality of neutral connection parts connected to the copper busbar main body, the copper busbar main body is arranged in an arc shape, the arc extension direction of the copper busbar main body is the same as the arc extension direction of the fixing part, and the copper busbar main body is arranged in the second fixing part.

[0013] As an embodiment of the present invention, the copper busbar body is divided into a first part and a second part along its arc-shaped extension direction, the first part is arranged in the second fixing part, and the second part is located outside the second fixing part.

[0014] As an embodiment of the present invention, in the thickness extension direction of the fixing piece, the orthographic projection of the copper busbar body partially overlaps with the orthographic projection of the third extension portion.

[0015] As an embodiment of the present utility model, the second phase busbar further includes a third bending portion, one end of the third bending portion is bent and connected to the second extension portion, the other end of the third bending portion is bent and connected to the second lead-out portion, and the third bending portion extends toward the outer side of the arc of the second extension portion;

[0016] The third-phase busbar further includes a fourth bending portion, one end of the fourth bending portion is bent and connected to the third extension portion, the other end of the fourth bending portion is bent and connected to the third lead-out portion, and the fourth bending portion extends toward the outer side of the arc of the third extension portion;

[0017] Wherein, in the thickness extension direction of the fixing member, the third bending portion overlaps with the fourth bending portion.

[0018] As an embodiment of the present utility model, the second-phase busbar further includes a fifth bent portion, one end of the fifth bent portion is bent and connected to the third bent portion, the other end of the fifth bent portion is bent and connected to the second lead-out portion, and the extension direction of the fifth bent portion is the same as the orientation direction of the fixing member relative to the stator;

[0019] The third-phase busbar further includes a sixth bending portion, one end of the sixth bending portion is bent and connected to the fourth bending portion, the other end of the sixth bending portion is bent and connected to the third lead-out portion, and the extension direction of the sixth bending portion is the same as the orientation direction of the fixing member relative to the stator;

[0020] Wherein, in the radial extension direction of the fixing member, the fifth bending portion overlaps with the sixth bending portion.

[0021] As an embodiment of the utility model, the bus structure also includes a conducting component for electrically connecting to an external power supply device, the conducting component including a first conducting member, a second conducting member and a third conducting member arranged along a first direction; the first conducting member is connected to the first lead-out portion, the second conducting member is connected to the second lead-out portion, and the third conducting member is connected to the third lead-out portion.

[0022] As an embodiment of the present invention, in the first direction, the distances between the first conductive member, the second conductive member, the third conductive member and the fixing member gradually decrease;

[0023] A plurality of the first lead portions form a first lead portion group, a plurality of the second lead portions form a second lead portion group, a plurality of the third lead portions form a third lead portion group, and an arrangement direction of at least one of the first lead portion group, the second lead portion group, and the third lead portion group is the same as the second direction;

[0024] The second direction is perpendicular to the first direction.

[0025] As an embodiment of the present utility model, the first conductive member includes a first conductive portion and a second conductive portion connected to each other, the first conductive portion is connected to the first lead-out portion group, and the second conductive portion is used to be electrically connected to an external power supply device;

[0026] The second conductive member comprises a third conductive portion and a fourth conductive portion connected to each other, the third conductive portion is connected to the first lead-out portion group, and the fourth conductive portion is used to be electrically connected to an external power supply device;

[0027] The third conductive connection member comprises a fifth conductive connection portion and a sixth conductive connection portion connected to each other, the fifth conductive connection portion is electrically connected to the first lead-out portion group, and the sixth conductive connection portion is used to be electrically connected to an external power supply device;

[0028] Wherein, a width extension direction of at least one of the first conductive portion, the third conductive portion, and the fifth conductive portion is the same as the second direction.

[0029] In a second aspect, the utility model further provides a motor, which comprises the bus structure as described in the first aspect.

[0030] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0031] In the utility model, the fixing part is divided into two layers along its thickness direction, namely a first fixing part and a second fixing part; the first extension part, the second extension part and the third extension part are arranged in an arc shape, so that the first extension part, the second extension part and the third extension part can be adaptively embedded in the fixing part; specifically, the first extension part and the second extension part are arranged in the first fixing part, and the second extension part is located outside the arc of the first extension part, so that the first extension part and the second extension part are compactly arranged in the first fixing part; the third extension part is arranged in the second fixing part, and in the thickness extension direction of the fixing part, the orthographic projection of the third extension part overlaps with the orthographic projection of the third extension part; that is, the third extension part is arranged in layers relative to the first extension part and the second extension part, and the space occupied by the second extension part in the radial direction is used to arrange the third extension part, thereby avoiding the third extension part from occupying additional space of the fixing part in the radial direction. The utility model arranges the relative positions of the first extension part, the second extension part and the third extension part when they are arranged on the fixing part, and on the basis of realizing the fixing effect of the fixing part on the first phase bus, the second phase bus and the third phase bus, reduces the space occupied by the first phase bus, the second phase bus and the third phase bus on the fixing part, thereby reducing the volume of the fixing part; when the bus structure is assembled with the stator, the fixing part is arranged on the end face of the stator, so that the first phase connecting part, the second phase connecting part and the third phase connecting part are connected to the stator, and reduces the space occupied by the fixing part on the end face of the stator, thereby solving the technical problem of the large space occupied by the bus structure in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

[0033] Figure 1 This is a schematic diagram of the overall structure of a motor in one embodiment of the utility model;

[0034] Figure 2 This is a partial structural diagram of a motor in one embodiment of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of a housing in one embodiment of the utility model;

[0036] Figure 4This is a schematic diagram of the structure of a socket in one embodiment of the utility model;

[0037] Figure 5 This is a schematic structural diagram of a busbar structure in one embodiment of the utility model;

[0038] Figure 6 This is a schematic diagram of the structure of a fixing member in one embodiment of the utility model;

[0039] Figure 7 It is a schematic diagram of the structure of the first phase busbar, the second phase busbar, the third phase busbar, and the neutral point copper busbar in one embodiment of the utility model;

[0040] Figure 8 This is a schematic diagram of the structure of the neutral point copper bar in one embodiment of the utility model;

[0041] Fig. 9 It is a structural schematic diagram of a conductive connection assembly in one embodiment of the utility model.

[0042] Wherein: 100, motor; 10, busbar structure; 11, fixing member; 111, end fixing portion; 1111, first fixing portion; 1112, second fixing portion; 112, side fixing portion; 12, first phase busbar; 121, first extension portion; 122, first phase connecting portion; 123, first lead-out portion; 123Z, first lead-out portion group; 124, first bending portion; 125, second bending portion; 13, second phase busbar; 131, second extension portion; 132, second phase connecting portion; 133, second lead-out portion; 133Z, second lead-out portion group; 134, third bending portion; 135, fifth bending portion; 14, third phase busbar; 141, third extension portion; 142, third phase connecting portion; 143, third lead-out portion; 143Z, third lead-out portion group; 144, fourth bending portion; 145, sixth bending portion; 15, neutral point copper busbar; 151, copper busbar body; 1511, first part; 1512, second part; 152, neutral connection portion; 16, conducting assembly; 161, first conducting member; 1611, first conducting portion; 1612, second conducting portion; 162, second conducting member; 1621, third conducting portion; 1622, fourth conducting portion; 163, third conducting member; 1631, fifth conducting portion; 1632, sixth conducting portion; 20, housing; 21, through hole; 30, socket; 31, socket body; 311, slot; 312, fixing hole; 32, hard copper busbar; 33, sealing ring; 34, bushing; 40, stator. DETAILED DESCRIPTION

[0043] 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.

[0044] 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.

[0045] 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.

[0046] See also Figure 1-Figure 2 An embodiment of the utility model provides a bus structure 10 and a motor 100, wherein the motor 100 includes a stator 40 and the bus structure 10, wherein the bus structure 10 connects the multi-phase lead wires of the stator 40 in parallel, thereby arranging the complex multi-phase lead wires in the structure of the stator 40, and realizing electrical transmission between the control system and the stator 40 through the bus structure 10.

[0047] In one embodiment, see Figure 1 and Figure 3 The motor 100 further includes a housing 20 , in which the stator 40 and the busbar structure 10 are disposed.

[0048] In one embodiment, see Figure 1-Figure 4 The motor 100 further includes a socket 30 disposed outside the housing 20 . The housing 20 is formed with a through hole 21 . The socket 30 is electrically connected to the bus structure 10 through the through hole 21 .

[0049] In some specific embodiments, see Figure 4The socket 30 includes a socket body 31 and a hard copper busbar 32 arranged on the socket body 31 ; the socket body 31 is arranged on the outer wall of the shell 20 , and the hard copper busbar 32 passes through the through hole 21 and is electrically connected to the busbar structure 10 .

[0050] In one embodiment, see Figure 4 The socket 30 further includes a sealing ring 33 , which surrounds the hard copper bus 32 and is disposed on the socket body 31 . The sealing ring 33 is used to abut against the wall surface of the peripheral edge of the through hole 21 to seal the electrical connection between the socket 30 and the bus structure 10 .

[0051] In one embodiment, see Figure 4 The socket body 31 is also formed with a slot 311 , in which the hard copper busbar 32 is inserted, and a sealant is filled between the hard copper busbar 32 and the slot wall of the slot 311 .

[0052] In some specific embodiments, see Figure 4 The socket body 31 is also formed with a fixing hole 312 , and the socket body 31 is installed relative to the housing 20 through the fixing hole 312 .

[0053] In one embodiment, see Figure 4 The socket 30 further includes a bushing 34 which is clamped into the fixing hole 312 to protect the installation of the socket body 31 .

[0054] See also Figure 5-Figure 9 The bus structure 10 includes a fixing member 11, a first phase bus 12, a second phase bus 13 and a third phase bus 14; the first phase bus 12 includes a first extension portion 121, and a first phase connecting portion 122 and a first lead-out portion 123 connected at both ends of the first extension portion 121, the first phase connecting portion 122 is used to be electrically connected to the first phase pin on the stator 40 of the motor 100, and the first lead-out portion 123 is used to be electrically connected to an external power supply device; the second phase bus 13 includes a second extension portion 131, and a first phase connecting portion 122 and a first lead-out portion 123 connected at both ends of the first extension portion 121. The second phase connecting portion 132 and the second lead-out portion 133 at both ends of the second extension portion 131, the second phase connecting portion 132 is used to be electrically connected to the second phase pin on the stator 40 of the motor 100, and the second lead-out portion 133 is used to be electrically connected to an external power supply device; the third phase busbar 14 includes a third extension portion 141, and a third phase connecting portion 142 and a third lead-out portion 143 connected to both ends of the second extension portion 131, the third phase connecting portion 142 is used to be electrically connected to the third phase pin on the stator 40 of the motor 100, and the third lead-out portion 143 is used to be electrically connected to an external power supply device. In this way, the busbar structure 10 is used to shape and connect the pins on the stator 40 of the motor 100.

[0055] The fixing member 11 is arranged in an arc shape, and the fixing member 11 is divided into a first fixing portion 1111 and a second fixing portion 1112 along its thickness direction; the first extending portion 121, the second extending portion 131, and the third extending portion 141 are all arranged in an arc shape, and the arc extension direction of the first extending portion 121, the second extending portion 131, and the third extending portion 141 is the same as the arc extension direction of the fixing member 11; the first extending portion 121 and the third extending portion 141 are both arranged in the first fixing portion 1111, and the third extending portion 141 is located on the outer arc side of the first extending portion 121; the second extending portion 131 is arranged in the second fixing portion 1112, and in the thickness extension direction of the fixing member 11, the orthographic projection of the second extending portion 131 partially overlaps with the orthographic projection of the third extending portion 141.

[0056] In the present invention, the fixing member 11 is divided into two layers along the thickness direction thereof, namely, a first fixing portion 1111 and a second fixing portion 1112; the first extension portion 121, the second extension portion 131, and the third extension portion 141 are arranged in an arc shape, so that the first extension portion 121, the second extension portion 131, and the third extension portion 141 can be adaptively embedded in the fixing member 11; specifically, the first extension portion 121 and the third extension portion 141 are arranged in the first fixing portion 1111, and the third extension portion 141 is located outside the arc of the first extension portion 121, so that the first extension portion 121 and the third extension portion 141 can be embedded in the fixing member 11; specifically, the first extension portion 121 and the third extension portion 141 are arranged in the first fixing portion 1111, and the third extension portion 141 is located outside the arc of the first extension portion 121, so that the first extension portion 1 21. The third extension portion 141 is compactly arranged in the first fixing portion 1111; the second extension portion 131 is arranged in the second fixing portion 1112, and in the thickness extension direction of the fixing member 11, the orthographic projection of the second extension portion 131 partially overlaps with the orthographic projection of the third extension portion 141; that is, the second extension portion 131 is layered relative to the first extension portion 121 and the third extension portion 141, and the second extension portion 131 is arranged by utilizing the space already occupied by the third extension portion 141 in the radial direction, thereby avoiding the second extension portion 131 from occupying additional space in the radial direction of the fixing member 11. The utility model arranges the relative positions of the first extension portion 121, the second extension portion 131, and the third extension portion 141 when they are arranged on the fixing member 11. On the basis of realizing the fixing effect of the fixing member 11 on the first phase bus 12, the second phase bus 13, and the third phase bus 14, the space occupied by the first phase bus 12, the second phase bus 13, and the third phase bus 14 on the fixing member 11 is reduced, thereby reducing the volume of the fixing member 11; when the bus structure 10 is assembled with the stator 40, the fixing member 11 is arranged on the end face of the stator 40, so that the first phase connecting portion 122, the second phase connecting portion 132, and the third phase connecting portion 142 are connected to the stator 40, and the space occupied by the fixing member 11 on the end face of the stator 40 is reduced, thereby solving the technical problem of the bus structure 10 occupying a large space in the prior art.

[0057] In some specific embodiments, in the thickness extension direction of the fixing member 11, the inner and outer arc extension directions of the orthographic projection of the second extension portion 131 overlap with the inner and outer arc extension directions of the orthographic projection of the third extension portion 141, thereby further improving the overlap between the second extension portion 131 and the third extension portion 141, further fully utilizing the radial space of the fixing member 11, and reducing the volume of the fixing member 11.

[0058] In some specific embodiments, the first phase busbar 12 , the second phase busbar 13 , and the third busbar are respectively a U-phase busbar, a V-phase busbar, and a W-phase busbar.

[0059] In some specific embodiments, the first phase busbar 12 , the second phase busbar 13 , and the third phase busbar 14 are made of enameled wire.

[0060] The first phase pin, the second phase pin, and the third phase pin on the stator 40 of the motor 100 are respectively a U phase pin, a V phase pin, and a W phase pin.

[0061] In some specific embodiments, see Figure 5 and Figure 7 The first phase connection portion 122 , the second phase connection portion 124 , and the third phase connection portion 126 are all located on the inner arc side of the fixing member 11 .

[0062] In one embodiment, see Figure 5 , Figure 7 as well as Figure 8 The busbar structure 10 also includes a neutral point copper bar 15, which includes a copper bar body 151 and a plurality of neutral connection parts 152 connected to the copper bar body 151, and the neutral connection part 152 is used to be electrically connected to the neutral pin on the stator 40 of the motor 100.

[0063] In some specific embodiments, see Figure 5 , Figure 7 as well as Figure 8 The copper busbar body 151 is arranged in an arc shape, and the arc extension direction of the copper busbar body 151 is the same as the arc extension direction of the fixing member 11 . The copper busbar body 151 is arranged in the second fixing portion 1112 .

[0064] In this embodiment, the copper busbar body 151 is arranged to be arc-shaped, so that the copper busbar body 151 can be adaptively embedded in the second fixing portion 1112, that is, the first extension portion 121 and the third extension portion 141 are jointly embedded in the first fixing portion 1111 and jointly occupy the first fixing portion 1111, and the second extension portion 131 and the copper busbar body 151 are jointly embedded in the second fixing portion 1112 and jointly occupy the second fixing portion 1112, thereby fully utilizing the second fixing portion 1112.

[0065] In some specific embodiments, see Figure 5 and Figure 8 The copper busbar body 151 is divided into a first part 1511 and a second part 1512 along its arc-shaped extension direction. The first part 1511 is arranged in the second fixing part 1112 , and the second part 1512 is located outside the second fixing part 1112 .

[0066] In this embodiment, the first part 1511 is embedded in the second fixing part 1112 to fix the copper busbar body 151 by the fixing member 11; and the second part 1512 is located outside the second fixing part 1112, which reduces the space occupied by the copper busbar body 151 to the fixing member 11 and avoids the increase of the volume of the fixing member 11.

[0067] In some specific embodiments, see Figure 7 In the thickness extension direction of the fixing member 11 , the orthographic projection of the copper busbar main body 151 partially overlaps with the orthographic projection of the third extension portion 141 .

[0068] In this embodiment, in the thickness extension direction of the fixing piece 11, the relative position between the copper busbar main body 151 and the third extension portion 141 is set so that the orthographic projection of the copper busbar main body 151 partially overlaps with the orthographic projection of the third extension portion 141, and the copper busbar main body 151 is set by utilizing the space occupied by the third extension portion 141 in the radial direction of the fixing piece 11, thereby avoiding the copper busbar main body 151 from occupying additional space in the radial direction of the fixing piece 11.

[0069] It can be understood that, in the thickness extension direction of the fixing member 11 , the orthographic projection of the first portion 1511 overlaps with the orthographic projection of the third extension portion 141 .

[0070] In some specific embodiments, in the thickness extension direction of the fixing member 11, the outer arc extension direction of the orthographic projection of the copper bar body 151 overlaps with the outer arc extension direction of the orthographic projection of the third extension portion 141. This prevents the copper bar body 151 from protruding out of the third extension portion 141 along the arc outer side of the third extension portion 141, thereby preventing the copper bar body 151 from occupying additional space in the radial direction of the fixing member 11.

[0071] In some specific embodiments, in the thickness extension direction of the fixing member 11, the inner arc extension direction of the orthographic projection of the copper bar body 151 is located between the inner arc extension direction of the orthographic projection of the first extension portion 121 and the inner arc extension direction of the orthographic projection of the third extension portion 141. Thus, the copper bar body 151 can be prevented from protruding from the first extension portion 121 along the inner side of the arc of the first extension portion 121, thereby preventing the copper bar body 151 from occupying additional space in the radial direction of the fixing member 11.

[0072] In some specific embodiments, see Figure 7 , the length of the third extension portion 141 is greater than the length of the first extension portion 121 .

[0073] In some specific embodiments, see Figure 7 The length of the third extension portion 141 is greater than that of the second extension portion 131 , so that the projections of the second extension portion 131 and the copper busbar body 151 in the thickness extension direction of the fixing member 11 can overlap with the projection of the third extension portion 141 .

[0074] In some specific embodiments, see Figure 7 The first phase busbar 12 further includes a first bending portion 124, one end of which is bent and connected to the first extension portion 121, and the other end of which is bent and connected to the first lead-out portion 123, and the first bending portion 124 extends toward the outer arc side of the first extension portion 121. The first extension portion 121 is located at the end surface of the stator 40 along with the fixing member 11, and the first bending portion 124 is provided between the first extension portion 121 and the first lead-out portion 123, and the first bending portion 124 extends toward the outer arc side of the first extension portion 121, so that the first lead-out portion 123 connected to the first bending portion 124 can extend in a direction away from the circumference of the stator 40, so that the first lead-out portion 123 is electrically connected to an external power supply device.

[0075] The first phase busbar 12 further includes a second bent portion 125, see Figure 7 , one end of the second bent portion 125 is bent and connected to the first bent portion 124, the other end of the second bent portion 125 is bent and connected to the first lead-out portion 123, and the extension direction of the second bent portion 125 is the same as the orientation direction of the fixing member 11 relative to the stator 40. Specifically, when the fixing member 11 is set on the stator 40, the fixing member 11 faces the end surface of the stator 40, therefore, the extension direction of the second bent portion 125 is the same as the orientation direction of the fixing member 11 relative to the stator 40, that is, the second bent portion 125 extends along the height direction of the stator 40 in a direction away from the end surface of the stator 40, so that the first lead-out portion 123 connected to the second bent portion 125 is located on the circumferential side of the stator 40 and away from the end surface of the stator 40, so that the first lead-out portion 123 is conveniently electrically connected to the external power supply device.

[0076] In some specific embodiments, see Figure 7The second phase busbar 13 further includes a third bending portion 134, one end of which is bent and connected to the second extension portion 131, and the other end of which is bent and connected to the second lead-out portion 133, and the third bending portion 134 extends to the outer side of the arc of the second extension portion 131. The second extension portion 131 is located on the end surface of the stator 40 along with the fixing member 11. By arranging the third bending portion 134 between the second extension portion 131 and the second lead-out portion 133, and the third bending portion 134 extending to the outer arc side of the second extension portion 131, the second lead-out portion 133 connected to the third bending portion 134 can be extended in a direction away from the circumference of the stator 40, so that the second lead-out portion 133 is electrically connected to an external power supply device.

[0077] In some specific embodiments, see Figure 7 The third phase busbar 14 further includes a fourth bending portion 144, one end of which is bent and connected to the third extension portion, and the other end of which is bent and connected to the third lead-out portion 143, and the fourth bending portion 144 extends to the outer side of the arc of the third extension portion 141. The third extension portion 141 is located on the end surface of the stator 40 along with the fixing member 11. By arranging the fourth bending portion 144 between the third extension portion 141 and the third lead-out portion 143, and the fourth bending portion 144 extends to the outer arc side of the third extension portion 141, the third lead-out portion 143 connected to the fourth bending portion 144 can be extended in a direction away from the circumference of the stator 40, so that the third lead-out portion 143 is electrically connected to an external power supply device.

[0078] In some specific embodiments, see Figure 7 , in the thickness extension direction of the fixing member 11, the third bent portion 134 overlaps with the fourth bent portion 144. In this embodiment, the third bent portion 134 connected to the second extension portion 131 and the fourth bent portion 144 connected to the third extension portion 141 are arranged to overlap, which, on the one hand, realizes the regular arrangement of the second phase busbar 13 and the third phase busbar 14, and on the other hand, reduces the occupied space of the second phase busbar 13 and the third phase busbar 14.

[0079] In some specific embodiments, see Figure 7, the second phase busbar 13 further includes a fifth bending portion 135, one end of the fifth bending portion 135 is bent and connected to the third bending portion 134, the other end of the fifth bending portion 135 is bent and connected to the second lead-out portion 133, and the extension direction of the fifth bending portion 135 is the same as the orientation direction of the fixing member 11 relative to the stator 40. Specifically, when the fixing member 11 is set on the stator 40, the fixing member 11 faces the end face of the stator 40, therefore, the extension direction of the fifth bending portion 135 is the same as the orientation direction of the fixing member 11 relative to the stator 40, that is, the second bending portion 125 extends in the direction away from the end face of the stator 40 along the height direction of the stator 40, so that the first lead-out portion 123 connected to the second bending portion 125 is located on the circumferential side of the stator 40 and away from the end face of the stator 40, so that the first lead-out portion 123 is conveniently electrically connected to the external power supply device.

[0080] In some specific embodiments, see Figure 7 , the third phase busbar 14 further includes a sixth bending portion 145, one end of the sixth bending portion 145 is bent and connected to the fourth bending portion 144, the other end of the sixth bending portion 145 is bent and connected to the third lead-out portion 143, and the extension direction of the sixth bending portion 145 is the same as the orientation direction of the fixing member 11 relative to the stator 40. Specifically, when the fixing member 11 is set on the stator 40, the fixing member 11 faces the end face of the stator 40, therefore, the extension direction of the fifth bending portion 135 is the same as the orientation direction of the fixing member 11 relative to the stator 40, that is, the second bending portion 125 extends in the direction away from the end face of the stator 40 along the height direction of the stator 40, so that the first lead-out portion 123 connected to the second bending portion 125 is located on the circumferential side of the stator 40 and away from the end face of the stator 40, so that the first lead-out portion 123 is conveniently electrically connected to the external power supply device.

[0081] In some specific embodiments, see Figure 7 , in the radial extension direction of the fixing member 11, the fifth bent portion 135 overlaps with the sixth bent portion 145. In this embodiment, the fifth bent portion 135 indirectly connected to the second extension portion 131 through the third bent portion 134 and the sixth bent portion 145 indirectly connected to the third extension portion 141 through the fourth bent portion 144 are arranged to overlap, which further realizes the regular arrangement of the second phase busbar 13 and the third phase busbar 14 on the one hand, and further reduces the occupied space of the second phase busbar 13 and the third phase busbar 14 on the other hand.

[0082] In one embodiment, see Figure 5The bus structure 10 also includes a conducting component 16 for electrically connecting to an external power supply device, and the conducting component 16 includes a first conducting member 161, a second conducting member 162 and a third conducting member 163 arranged along a first direction; the first conducting member 161 is connected to the first lead-out portion 123, the second conducting member 162 is connected to the second lead-out portion 133, and the third conducting member 163 is connected to the third lead-out portion 143.

[0083] That is, the first lead portion 123 is electrically connected to the external power supply device through the first conductor 161, the second lead portion 133 is electrically connected to the external power supply device through the second conductor 162, and the third lead portion 143 is electrically connected to the external power supply device through the third conductor 163.

[0084] In some specific embodiments, the first conductive member 161 , the second conductive member 162 , and the third conductive member 163 are made of soft copper busbars.

[0085] In some specific embodiments, in the first direction, the distances between the first conductive member 161, the second conductive member 162, the third conductive member 163 and the fixing member 11 gradually decrease. The first direction is defined as Figure 5 and Figure 7 In the X direction, specifically, the first conductive member 161 is disposed between the fixing member 11 and the inner wall of the housing 20. Therefore, when the distance between the first conductive member 161 and the fixing member 11 is inversely proportional to the distance between the first conductive member 161 and the inner wall of the housing 20, the second conductive member 162 and the third conductive member 163 are in the same manner. Therefore, in the first direction, the distances between the first conductive member 161, the second conductive member 162, the third conductive member 163 and the fixing member 11 gradually decrease, and the distances between the third conductive member 163, the second conductive member 162, the first conductive member 161 and the inner wall of the housing 20 gradually decrease.

[0086] In some specific embodiments, see Figure 7 , a plurality of the first lead portions 123 form a first lead portion group 123Z, a plurality of the second lead portions 133 form a second lead portion group 133Z, a plurality of the third lead portions 143 form a third lead portion group 143Z, and the arrangement direction of at least one of the first lead portion group 123Z, the second lead portion group Z, and the third lead portion group Z is the same as the second direction; wherein the second direction is perpendicular to the first direction. The second direction is defined as Figure 5 and Figure 7 Center Y direction.

[0087] In this embodiment, by setting the arrangement of the first lead-out portion group 123Z, the second lead-out portion group 133Z, and the third lead-out portion group 143Z so that the arrangement direction of at least one of the groups is perpendicular to the first direction, thereby deviating from the first direction, the space required for the arrangement of the first lead-out portion group 123Z, the second lead-out portion group 133Z, and the third lead-out portion group 143Z between the inner wall of the shell 20 and the peripheral side of the stator 40 can be reduced, thereby reducing the distance between the inner wall of the shell 20 and the peripheral side of the stator 40, thereby realizing the miniaturization of the shell 20.

[0088] In some specific embodiments, see Figure 7 , the first lead portion group 123Z is arranged along the second direction. The first lead portion group 123Z is closer to the inner wall of the housing 20 than the second lead portion group 133Z and the third lead portion group 143Z. The first lead portion group 123Z is arranged along the second direction to facilitate controlling the distance between the first lead portion group 123Z and the inner wall of the housing 20.

[0089] In some specific embodiments, see Figure 7 , the second lead portion group 133Z is arranged along the first direction, and the third lead portion group 143Z is arranged along the first direction.

[0090] In some specific embodiments, see Fig. 9 The first conductive member 161 includes a first conductive portion 1611 and a second conductive portion 1612 connected to each other, the first conductive portion 1611 is connected to the first lead-out portion group 123Z, and the second conductive portion 1612 is used to be electrically connected to an external power supply device.

[0091] In some specific embodiments, the first conductive portion 1611 and the second conductive portion 1612 are connected by bending.

[0092] See also Fig. 9 The second conductive member 162 includes a third conductive portion 1621 and a fourth conductive portion 1622 connected to each other, the third conductive portion 1621 is connected to the first lead-out portion group 123Z, and the fourth conductive portion 1622 is used to be electrically connected to an external power supply device.

[0093] In some specific embodiments, the third conductive portion 1621 and the fourth conductive portion 1622 are connected in a bent manner.

[0094] See also Fig. 9 The third conductive member 163 includes a fifth conductive portion 1631 and a sixth conductive portion 1632 connected to each other, the fifth conductive portion 1631 is electrically connected to the first lead portion group 123Z, and the sixth conductive portion 1632 is used to be electrically connected to an external power supply device.

[0095] In some specific embodiments, the fifth conductive portion 1631 and the sixth conductive portion 1632 are connected in a bent manner.

[0096] See also Figure 5 , Fig. 9 , the width extension direction of at least one of the first conductive portion 1611, the third conductive portion 1621, and the fifth conductive portion 1631 is the same as the second direction. Specifically, when the first lead portion group 123Z is arranged along the second direction, the width extension direction of the first conductive portion 1611 is the same as the second direction; when the second lead portion group 133Z is arranged along the second direction, the width extension direction of the third conductive portion 1621 is the same as the second direction; when the third lead portion group 143Z is arranged along the second direction, the width extension direction of the fifth conductive portion 1631 is the same as the second direction.

[0097] In some specific embodiments, see Fig. 9 , the width extension direction of the first conductive portion 1611 is the same as the second direction.

[0098] In some specific embodiments, see Fig. 9 The width extension direction of the third conductive portion 1621 and the fifth conductive portion 1631 is the same as the first direction.

[0099] In some specific embodiments, the fixing member 11 is a plastic member.

[0100] In some specific embodiments, see Figure 5 and Figure 6 The fixing member 11 includes an end fixing portion 111 and a side fixing portion 112. The end fixing portion 111 is arranged in an arc shape and is located on the end surface of the stator 40. The first fixing portion 1111 and the second fixing portion 1112 are formed by dividing the end fixing portion 111 along its thickness direction; the side fixing portion 112 is connected to one end of the end fixing portion 111 and is located on the circumferential side of the stator 40.

[0101] In some specific embodiments, see Figure 5 and Figure 6 The first bending portion 124 , the third bending portion 134 , and the fourth bending portion 144 are disposed in the side fixing portion 112 .

[0102] In some specific embodiments, see Figure 5 and Figure 6 The second bending portion 125 , the fifth bending portion 135 , and the sixth bending portion 145 are disposed in the side fixing portion 112 .

[0103] 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 structure, characterized in that: include: A fixing member, wherein the fixing member is arranged in an arc shape and is divided into a first fixing portion and a second fixing portion along a thickness direction thereof; A first phase busbar, the first phase busbar comprising a first extension portion, and a first phase connecting portion and a first lead-out portion connected at two ends of the first extension portion; A second phase busbar, the second phase busbar comprising a second extension portion, and a second phase connecting portion and a second lead-out portion connected at two ends of the second extension portion; A third phase busbar, the third phase busbar comprising a third extension portion, and a third phase connecting portion and a third lead-out portion connected to both ends of the second extension portion; Among them, the first extension portion, the second extension portion, and the third extension portion are all arranged in an arc shape, and the arc extension direction of the first extension portion, the second extension portion, and the third extension portion is the same as the arc extension direction of the fixing member; the first extension portion and the third extension portion are both arranged in the first fixing portion, and the third extension portion is located on the outer arc side of the first extension portion; the second extension portion is arranged in the second fixing portion, and in the thickness extension direction of the fixing member, the orthographic projection of the second extension portion partially overlaps with the orthographic projection of the third extension portion.

2. The busbar structure according to claim 1, characterized in that: The busbar structure also includes a neutral point copper busbar, which includes a copper busbar main body and a plurality of neutral connection parts connected to the copper busbar main body. 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 fixing member. The copper busbar main body is arranged in the second fixing part.

3. The busbar structure according to claim 2, characterized in that: The copper busbar body is divided into a first part and a second part along its arc-shaped extension direction. The first part is arranged in the second fixing part, and the second part is located outside the second fixing part.

4. The busbar structure according to claim 2, characterized in that: In the thickness extension direction of the fixing piece, the orthographic projection of the copper busbar body partially overlaps with the orthographic projection of the third extension portion.

5. The busbar structure according to claim 1, characterized in that: The second phase busbar further includes a third bending portion, one end of the third bending portion is bent and connected to the second extension portion, the other end of the third bending portion is bent and connected to the second lead-out portion, and the third bending portion extends toward the outer side of the arc of the second extension portion; The third-phase busbar further includes a fourth bending portion, one end of the fourth bending portion is bent and connected to the third extension portion, the other end of the fourth bending portion is bent and connected to the third lead-out portion, and the fourth bending portion extends toward the outer side of the arc of the third extension portion; Wherein, in the thickness extension direction of the fixing member, the third bending portion overlaps with the fourth bending portion.

6. The busbar structure according to claim 5, characterized in that: The second-phase busbar further includes a fifth bending portion, one end of the fifth bending portion is bent and connected to the third bending portion, the other end of the fifth bending portion is bent and connected to the second lead-out portion, and the extension direction of the fifth bending portion is the same as the orientation direction of the fixing member relative to the stator; The third-phase busbar further includes a sixth bending portion, one end of the sixth bending portion is bent and connected to the fourth bending portion, the other end of the sixth bending portion is bent and connected to the third lead-out portion, and the extension direction of the sixth bending portion is the same as the orientation direction of the fixing member relative to the stator; Wherein, in the radial extension direction of the fixing member, the fifth bending portion overlaps with the sixth bending portion.

7. The busbar structure according to any one of claims 1 to 6, characterized in that: The bus structure also includes a conducting component for electrically connecting to an external power supply device, the conducting component including a first conducting member, a second conducting member and a third conducting member arranged along a first direction; the first conducting member is connected to the first lead-out portion, the second conducting member is connected to the second lead-out portion, and the third conducting member is connected to the third lead-out portion.

8. The busbar structure according to claim 7, characterized in that: In the first direction, the distances between the first conductive member, the second conductive member, the third conductive member and the fixing member gradually decrease; A plurality of the first lead portions form a first lead portion group, a plurality of the second lead portions form a second lead portion group, a plurality of the third lead portions form a third lead portion group, and an arrangement direction of at least one of the first lead portion group, the second lead portion group, and the third lead portion group is the same as the second direction; The second direction is perpendicular to the first direction.

9. The busbar structure according to claim 8, characterized in that: The first conductive member comprises a first conductive portion and a second conductive portion connected to each other, the first conductive portion is connected to the first lead-out portion group, and the second conductive portion is used to be electrically connected to an external power supply device; The second conductive member comprises a third conductive portion and a fourth conductive portion connected to each other, the third conductive portion is connected to the first lead-out portion group, and the fourth conductive portion is used to be electrically connected to an external power supply device; The third conductive connection member comprises a fifth conductive connection portion and a sixth conductive connection portion connected to each other, the fifth conductive connection portion is electrically connected to the first lead-out portion group, and the sixth conductive connection portion is used to be electrically connected to an external power supply device; Wherein, a width extension direction of at least one of the first conductive portion, the third conductive portion, and the fifth conductive portion is the same as the second direction.

10. A motor, characterized in that: The electric machine comprises the busbar structure according to any one of claims 1-9.

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