CN217307360U

CN217307360U - Brushless windscreen wiper motor rotor punching sheet structure

Info

Publication number: CN217307360U
Application number: CN202123270993.9U
Authority: CN
Inventors: 李有刚; 杨永辉; 韦有帅
Original assignee: Guiyang Wanjiang Aviation Electromechanical Co ltd
Current assignee: Guiyang Wanjiang Aviation Electromechanical Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-08-26
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a brushless wiper motor rotor punching sheet structure, including towards piece main part (1), its characterized in that, is circular towards piece main part (1), and the circular center has hollow out construction A (103), is equipped with three riveting point (101) towards piece main part (1), riveting point (101) are the boss structure, three riveting point (101) are at the 120 equipartition of circumference; three hollow structures B (102) are correspondingly arranged at the outer circles of the three riveting points (101), and the hollow design is a circumferentially and uniformly distributed design. The utility model discloses inside increases the riveting point, just can fold the riveting together through the riveting point two when punching sheet stamping forming, through the relevant design of mould, can make the lamination structure of certain length in stamping process, does not need to carry out the single stack riveting in later stage again, has guaranteed length precision and has prevented to appear the clearance between the punching sheet again; meanwhile, the middle of the stamped steel is hollowed out, so that redundant materials are removed, and the weight is reduced.

Description

Brushless windscreen wiper motor rotor punching sheet structure

Technical Field

The utility model relates to a rotor punching sheet structure among brushless windscreen wiper motor, applicable in all similar structure's brushless motor.

Background

The rotor punching sheet part of the brushless wiper motor is of a single-sheet structure, and a certain number of punching sheets are pressed together through ribs on a rotating shaft for fixing during assembly, so that on one hand, the lamination length difference of the punching sheets is easy to occur, and the consistency of the motor is influenced; on the other hand can lead to the clearance inequality between the lamination of punching the piece, causes the motor iron loss to increase, and it is fast to generate heat, and motor efficiency reduces.

Disclosure of Invention

The utility model aims at providing a brushless windscreen wiper motor rotor punching sheet structure, the riveting point is increased in the structure, two sheets can be overlapped and riveted together through the riveting point when punching the sheet stamping forming, through the relevant design of the mould, the lamination structure with certain length can be made in the punching process, the later stage is not needed to be overlapped and riveted separately, thereby ensuring the length precision and preventing the gap from appearing between the sheets; meanwhile, the middle of the stamped steel is hollowed out, so that redundant materials are removed, and the weight is reduced.

The technical scheme of the utility model is that:

the utility model provides a brushless wiper motor rotor punching sheet structure, includes towards piece main part 1, is circular towards piece main part 1, and there is hollow out construction A103 at circular center, is equipped with three riveting point 101 towards piece main part 1, and three riveting point 101 excircle department corresponds and is equipped with three hollow out construction B102.

The riveting point 101 is of a boss structure.

The three riveting points are uniformly distributed at 120 degrees on the circumference.

The hollow-out structure A103 is in a triangular symmetrical structure.

The three hollow structures B102 are designed to be circumferentially and uniformly distributed.

The utility model has the following characteristics:

1. the utility model discloses rivet point and hollow out construction have been contained.

2. The utility model discloses well riveting point is the boss structure, can be in the same place two adjacent towards the piece is fixed, prevents that the clearance from appearing, can realize automatic folding riveting.

3. The utility model discloses the riveting point is the circumference equipartition, can rotate and can not influence the fold effect of riveting towards the piece fold riveting in-process with certain angle, can effectively reduce because of the uneven error accumulation that leads to of material thickness, lowers to fold the unbalance amount of riveting back towards the piece, reduces motor vibration.

4. The utility model discloses increased hollow out construction, reduced towards piece weight under the condition that does not change magnetic conductivity, reduced the motor loss, promoted the motor performance.

5. The utility model provides a fretwork design can realize rotatory folding riveting for the design of circumference equipartition, can not influence folding riveting effect.

Drawings

Figure 1 is a schematic structural view of the present invention,

fig. 2 is a partial sectional view of fig. 1.

The labels in the figure are: 1. the punching sheet comprises a punching sheet main body 101, riveting points 102, hollow structures B and 103 and a hollow structure A.

Detailed Description

The invention is further described below with reference to the figures and examples.

Referring to fig. 1-2, the rotor punching sheet structure of the brushless wiper motor comprises a punching sheet main body 1, wherein the punching sheet main body 1 is circular, a hollow structure A103 is arranged at the center of the circular shape, three riveting points 101 are arranged on the punching sheet main body 1, and three hollow structures B102 are correspondingly arranged at the outer circles of the three riveting points 101; the riveting point 101 is of a boss structure and mainly used for fixing two adjacent punching sheets together to prevent the two punching sheets from falling off, and the structure can realize automatic production and can be folded into different lengths as required; the three riveting points 101 are uniformly distributed at 120 degrees on the circumference, and each punching sheet can be rotated by 120 degrees before being fixed by riveting in the process of laminating the riveting punching sheets, so that the accumulation caused by material thickness errors can be effectively prevented, the unbalance amount of the punching sheets after laminating and riveting is reduced, and the motor vibration is reduced; the hollow-out structure A103 is in a triangular symmetrical structure; the three hollow structures B102 are designed to be circumferentially and uniformly distributed. Hollow out construction gets rid of unnecessary material under the condition that does not influence the motor performance, reduces motor weight and iron loss, promotes the motor performance, and can not cause the influence at the rotation of fold riveting in-process.

The utility model discloses inside increases the riveting point, just can fold the riveting together two through the riveting point when stamping forming towards the piece, through the relevant design of mould, can make the lamination structure of certain length in the stamping process, does not need to fold the riveting alone in the later stage again, has guaranteed length precision and has prevented to appear the clearance between the piece of punching again; meanwhile, the middle of the stamped steel is hollowed out, so that redundant materials are removed, and the weight is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a brushless windscreen wiper motor rotor towards piece structure, includes towards piece main part (1), its characterized in that: towards piece main part (1) and be circular, towards piece main part (1) circular center has hollow out construction A (103), is equipped with three riveting point (101) towards piece main part (1), and three riveting point (101) excircle department corresponds and is equipped with three hollow out construction B (102).

2. The rotor punching structure of the brushless wiper motor as claimed in claim 1, wherein: the riveting point (101) is of a boss structure.

3. The rotor punching structure of the brushless wiper motor as claimed in claim 1, wherein: the three riveting points (101) are uniformly distributed at 120 degrees on the circumference.

4. The rotor punching structure of the brushless wiper motor as claimed in claim 1, wherein: the hollow-out structure A (103) is in a triangular symmetrical structure.

5. The rotor punching structure of the brushless wiper motor as claimed in claim 1, wherein: the three hollow structures B (102) are designed to be circumferentially and uniformly distributed.