Busbar and stator winding installation structure, stator assembly and motor

Abstract

The utility model discloses a busbar and stator winding installation structure, a stator assembly and a motor. The busbar and stator winding installation structure comprises a stator winding; the busbar assembly comprises a busbar seat and a busbar, one end of the busbar is connected with the wire holder, and the other end of the busbar is connected with the stator winding after passing through the busbar seat; and the limiting piece is arranged on the confluence seat, and the limiting piece is used for limiting the confluence seat to move along a preset path. Compared with the prior art, the limiting piece is arranged on the confluence seat to limit the confluence seat to move along the preset path, when a vibration test is carried out, the movable space of the confluence seat can be effectively reduced, and then the situation that welding spots are broken due to shaking of the confluence seat is prevented; therefore, the connection strength of the busbar assembly and the stator winding is effectively improved.

Description

Technical Field

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

[0002] The rapid development of flat-wire motors has led to an increasing number of winding configurations, placing significant challenges on the design of busbars. The busbar's primary function in the stator assembly is to concentrate and distribute current. In flat-wire motors, it's typically a conductive element made of copper busbars or round enameled wire, connecting the stator windings to form an effective circuit path for inputting or outputting current. Currently, the busbar is primarily connected to the stator windings by welding the busbar to the winding's copper wires, relying solely on welding for support. After the motor is assembled, the busbar connector is bolted to the terminal block. In its final use, the busbar has two fixed points: the welding connection to the winding and the bolting to the terminal block. However, during vibration testing, the busbar's molded block itself has no fixed points, causing it to wobble, potentially breaking the solder joints. Therefore, this solution aims to further secure the busbar's molded block to reduce the amount of space available for movement. Utility Model Content

[0003] The purpose of the utility model is to provide a busbar and stator winding installation structure, a stator assembly and a motor, so as to solve the problem of busbar injection molding block breaking due to shaking during the vibration test, and to improve the connection strength between the busbar injection molding block and the stator winding.

[0004] In a first aspect, the present invention provides a busbar and stator winding installation structure, comprising:

[0005] stator winding;

[0006] A busbar assembly, comprising a busbar seat and a busbar, one end of the busbar being connected to a terminal seat, and the other end of the busbar being connected to the stator winding via the busbar seat;

[0007] A limiting member is provided on the busbar, and the limiting member is used to limit the movement of the busbar along a preset path.

[0008] In the above-described busbar and stator winding installation structure, preferably, the limiting member includes a limiting seat and a limiting portion, the limiting seat is arranged on a side of the busbar seat close to the stator winding, and the limiting portion is arranged on a side of the limiting seat facing the stator winding.

[0009] In the above-mentioned busbar and stator winding installation structure, preferably, the limiting portion includes a plurality of limiting portions, and the plurality of limiting portions are arranged on the limiting seat at intervals.

[0010] A busbar and stator winding installation structure as described above, wherein preferably, a limiting space is formed between adjacent limiting parts, each limiting space accommodates at least one group of stator windings, and the limiting parts and the stator windings in the limiting space can form a limiting fit.

[0011] In the above-mentioned busbar and stator winding installation structure, preferably, the limiting seat is an arc-shaped cylinder, and the plurality of limiting portions are provided on the inner wall surface of the arc-shaped cylinder.

[0012] In the above-mentioned busbar and stator winding installation structure, preferably, the limiting portion is a first protruding tooth provided on the inner wall surface of the arc-shaped cylinder, and each of the first protruding teeth extends toward the arc center of the arc-shaped cylinder.

[0013] In the above-mentioned busbar and stator winding installation structure, preferably, the limiting member is further provided with a plurality of positioning portions, and the plurality of positioning portions are used to fix the limiting member on the busbar seat.

[0014] In the above-described busbar and stator winding installation structure, preferably, the positioning portion is a second protruding tooth provided on the outer peripheral surface of the arc-shaped cylinder, and each of the second protruding teeth extends in a direction away from the arc center of the arc-shaped cylinder.

[0015] In a second aspect, the present invention provides a stator assembly, including a stator core and the aforementioned busbar and stator winding mounting structure.

[0016] In a third aspect, the present invention provides a motor comprising the aforementioned stator assembly.

[0017] Compared with the prior art, the utility model sets a limiter on the bus seat to limit the movement of the bus seat along a preset path. When conducting a vibration test, it can effectively reduce the space in which the bus seat can move, thereby preventing the bus seat from breaking due to shaking and causing the weld to break, thereby effectively improving the connection strength between the bus assembly and the stator winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of a busbar assembly provided in an embodiment of the present utility model;

[0019] Figure 2 is a top view of a busbar assembly provided in an embodiment of the present utility model;

[0020] Figure 3 It is a three-dimensional diagram of a limiting member provided in an embodiment of the present utility model;

[0021] Figure 4 It is a top view of the limiting member provided in the embodiment of the present utility model;

[0022] Figure 5 is a three-dimensional diagram of a stator assembly provided in an embodiment of the present utility model;

[0023] Figure 6 It is a cross-sectional view of a stator assembly provided by an embodiment of the present utility model.

[0024] Description of reference numerals:

[0025] 10- stator assembly, 11- stator winding, 12- stator core;

[0026] 20-busbar assembly, 21-busbar seat, 22-busbar;

[0027] 30-limiting member, 31-limiting seat, 311-arc-shaped cylinder, 32-limiting portion, 321-limiting space, 322-first protruding tooth, 33-positioning portion, 331-second protruding tooth. DETAILED DESCRIPTION

[0028] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] First, refer to Figures 1 to 4 As shown, the present invention provides a busbar and stator winding installation structure, including a stator winding 11, a busbar assembly 20 and a limiter 30, wherein:

[0030] The busbar assembly 20 includes a busbar base 21 and a busbar 22. One end of the busbar 22 is connected to the terminal base, and the other end of the busbar 22 is connected to the stator winding 11 through the busbar base 21, thereby realizing the function of the busbar 22 as a conductor. The busbar base 21 gathers the busbars 22 and then connects them to different stator windings 11 respectively to avoid confusion in the connection between the busbar 22 and the stator winding 11. After the busbar 22 is connected to the stator winding 11, the busbar 22 is only fixed at two locations: the connection with the stator winding 11 and the connection with the terminal base. The position of the busbar 21 is not fixed. When performing a vibration test, since the busbar 21 has no fixed point, it will shake during the test, which may cause the connection between the busbar 22 and the stator winding 11 or the connection with the terminal base to break.

[0031] In order to avoid the above problems, in the embodiment provided in the present application, a limiter 30 is provided on the bus seat 21, and the limiter 30 is used to limit the movement of the bus seat 21 along a preset path. The preset path is the path along which the bus seat 21 shakes during the vibration test. The limiter 30 controls the movement of the bus seat 21, thereby preventing the connection point between the bus 22 and the stator winding 11 or the connection point with the terminal block from being broken due to shaking.

[0032] In a feasible embodiment, the limiting member 30 includes a limiting seat 31 and a limiting portion 32. The limiting seat 31 is provided on the side of the busbar 21 close to the stator winding 11, and the limiting portion 32 is provided on the side of the limiting seat 31 facing the stator winding 11. The limiting portion 32 is used to limit the movement of the limiting seat 31 along a preset path or reduce the range of movement of the limiting seat 31 along the preset path, so as to minimize damage caused by shaking. Since the limiting seat 31 is connected to the busbar 21, the busbar 21 is limited. In order to improve the limiting effect of the limiting member 30, a plurality of limiting portions 32 are provided on the limiting seat 31. The plurality of limiting portions 32 are spaced apart on the limiting seat 31. The plurality of limiting portions 32 implement segmented limiting of the limiting seat 31, further reducing the range of movement of the limiting seat 31 along the preset path.

[0033] Specifically, a limiting space 321 is formed between adjacent limiting portions 32, and each limiting space 321 accommodates at least one group of stator windings 11. The limiting portion 32 and the stator windings 11 in the limiting space 321 can form a limiting fit, that is, when a vibration test is performed and the bus 22 shakes, the limiting seat 31 shakes synchronously therewith. When the limiting portion 32 shakes to the point where it contacts the stator winding 11 in the corresponding limiting space 321, the limiting seat 31 cannot continue to move along the preset path, thereby forming a limiting fit.

[0034] Preferably, refer to Figure 3 、 Figure 4 as well as Figure 6As shown, the limiting seat 31 is an arc-shaped cylinder 311, and multiple limiting parts 32 are provided on the inner wall surface of the arc-shaped cylinder 311. The limiting part 32 is a first protruding tooth 322 provided on the inner wall surface of the arc-shaped cylinder 311. The first protruding tooth 322 extends from the inner wall surface of the arc-shaped cylinder 311 toward the arc center of the arc-shaped cylinder 311. A limiting space 321 is formed between two adjacent first protruding teeth 322. When the bus 22 and the stator winding 11 are completed, the first protruding tooth 322 extends between the two adjacent stator windings 11, and each limiting space 321 accommodates at least one stator winding 11. When the bus 22 moves along the preset path, the arc-shaped cylinder 311 moves accordingly. When the first protruding tooth 322 moves to abut against the adjacent stator winding 11, it cannot move further. Since the distance between the two adjacent stator windings 11 is very small, the movable range of the first protruding tooth 322 is only the distance between the two adjacent stator windings 11. Compared with the situation in the prior art where no limit member 30 is provided, the range of movement of the bus seat 21 along the preset path is greatly reduced, thereby improving the strength of the bus assembly 20.

[0035] In other embodiments, the limiting member 30 may also adopt other structures or components that can limit the movement range of the busbar 21 along the preset path, which is not limited here.

[0036] In order to improve the connection strength between the busbar 21 and the limiting member 30 so that the limiting member 30 has a better limiting effect, in the embodiment provided in this application, reference is made to Figure 3 as well as Figure 4 As shown, the limiting member 30 is further provided with a plurality of positioning portions 33, which are used to fix the limiting member 30 on the busbar 21. Preferably, the positioning portions 33 are second protruding teeth 331 provided on the outer circumferential surface of the arc-shaped cylinder 311, and each second protruding tooth 331 extends in a direction away from the arc center of the arc-shaped cylinder 311, that is, the second protruding teeth 331 are provided on the side of the arc-shaped cylinder 311 away from the first protruding teeth 322. The busbar 21 can be provided with a plurality of positioning grooves that cooperate with the second protruding teeth 331. The second protruding teeth 331 form a positioning fit with the positioning grooves, which can further improve the limiting effect of the limiting member 30.

[0037] In other embodiments, the positioning portion 33 may adopt a structure or component that can fix the limiting member 30 and improve the limiting effect, which is not limited here.

[0038] Secondly, refer to Figure 5 as well as Figure 6As shown, the present invention provides a stator assembly 10, comprising a stator core 12 and the aforementioned busbar and stator winding mounting structure. The stator winding 11 is disposed throughout the stator core 12, with both ends of the stator winding 11 extending outside the stator core 12. A busbar seat 21 is disposed at one end of the stator core 12, and a plurality of first protruding teeth 322 on a retaining seat 31 extend between the two stator windings 11. Because the mounting structure of the busbar 22 and the stator winding 11 enhances the strength of the busbar seat 21, the connection strength between the stator winding 11 and the busbar 22 is enhanced, thereby providing the stator assembly 10 with good structural strength.

[0039] In a third aspect, the present invention provides a motor including the aforementioned stator assembly 10. Since the stator assembly 10 has a mounting structure for the busbar and the stator winding, it has good structural strength, which is beneficial for improving various motor performances.

[0040] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the scope of implementation of the present invention is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present invention.

Claims

1. A busbar and stator winding installation structure, characterized in that: include: stator winding; A busbar assembly, comprising a busbar seat and a busbar, one end of the busbar being connected to a terminal seat, and the other end of the busbar being connected to the stator winding via the busbar seat; A limiting member is provided on the busbar, and the limiting member is used to limit the movement of the busbar along a preset path.

2. The busbar and stator winding installation structure according to claim 1, characterized in that: The limiting member includes a limiting seat and a limiting portion. The limiting seat is arranged on a side of the busbar seat close to the stator winding, and the limiting portion is arranged on a side of the limiting seat facing the stator winding.

3. The busbar and stator winding installation structure according to claim 2, characterized in that: The limiting parts include a plurality of them, and the plurality of limiting parts are arranged on the limiting seat at intervals.

4. The busbar and stator winding installation structure according to claim 3, characterized in that: A limiting space is formed between adjacent limiting portions, and each limiting space accommodates at least one group of stator windings. The limiting portion and the stator windings in the limiting space can form a limiting fit.

5. The busbar and stator winding installation structure according to claim 4, characterized in that: The limiting seat is an arc-shaped cylinder, and the plurality of limiting parts are arranged on the inner wall surface of the arc-shaped cylinder.

6. The busbar and stator winding installation structure according to claim 5, characterized in that: The limiting portion is a first protruding tooth provided on the inner wall surface of the arc-shaped cylinder, and each of the first protruding teeth extends toward the arc center of the arc-shaped cylinder.

7. The busbar and stator winding installation structure according to claim 5, characterized in that: The limiting member is further provided with a plurality of positioning portions, and the plurality of positioning portions are used to fix the limiting member on the busbar.

8. The busbar and stator winding installation structure according to claim 7, characterized in that: The positioning portion is a second protruding tooth provided on the outer peripheral surface of the arc-shaped cylinder, and each of the second protruding teeth extends in a direction away from the arc center of the arc-shaped cylinder.

9. A stator assembly, characterized in that: It comprises a stator core and the busbar and stator winding installation structure according to any one of claims 1 to 8.

10. A motor, characterized in that: Includes the stator assembly according to claim 9.

Images