Brushless motor PCB and bearing pedestal riveting structure

Abstract

The utility model discloses a riveting structure of a brushless motor PCB and a bearing pedestal. Belongs to the technical field of brushless motor installation. According to the technical key points, the bearing pedestal comprises a PCB and a bearing pedestal body, the PCB is provided with a through hole matched with the bearing pedestal body, and a plurality of riveting pieces are evenly distributed on the bearing pedestal body in the circumferential direction; when the bearing seat is located in the through hole, the riveting piece is bent to be matched with the bearing seat to clamp the PCB. The utility model aims to provide the riveting structure for the PCB and the bearing seat of the brushless motor, which is simple in structure and rapid to fix; the fixing device is used for fixing the PCB and the bearing seat.

Description

Technical Field

[0001] The utility model relates to a riveting structure of a bearing seat, and more specifically, to a riveting structure between a PCB board of a brushless motor and a bearing seat. Background Art

[0002] For most of the current brushless motors on the market, the fixing method between the PCB board and the bearing seat basically adopts the process of manually locking screws. Generally, two to three screws are used to fix the board and the bearing seat. This manual screw-locking mode has low efficiency and the manual operation is likely to cause unstable quality. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a riveting structure between a PCB board of a brushless motor and a bearing seat with simple structure and quick fixing for the above-mentioned deficiencies of the existing technology.

[0004] The technical solution of the utility model is realized as follows: A riveting structure between a PCB board of a brushless motor and a bearing seat includes a PCB board and a bearing seat. Through holes adapted to the bearing seat are provided on the PCB board, and a plurality of riveting pieces are evenly distributed along the circumference on the bearing seat; when the bearing seat is located in the through hole, the riveting pieces are bent to cooperate with the bearing seat to clamp the PCB board.

[0005] In the above-mentioned riveting structure between a PCB board of a brushless motor and a bearing seat, the bearing seat includes a riveting portion with an outer diameter adapted to the through hole and a thickness the same as that of the PCB board. An installation seat for connecting the motor is integrally formed at one end of the riveting portion, and the diameter of the installation seat is larger than that of the riveting portion; the riveting pieces are evenly distributed along the circumference at the free end of the riveting portion.

[0006] In the above-mentioned riveting structure between a PCB board of a brushless motor and a bearing seat, an extension cylinder is integrally formed at the free end of the riveting portion, and a plurality of reinforcing ribs are evenly distributed along the circumference on the outer wall of the extension cylinder.

[0007] In the above-mentioned riveting structure between a PCB board of a brushless motor and a bearing seat, the outer diameter of the reinforcing rib is equal to the outer diameter of the riveting portion, and a lead-in chamfer is provided at the end of the free end of the reinforcing rib.

[0008] In the above-mentioned riveting structure between a PCB board of a brushless motor and a bearing seat, at least 6 riveting pieces are evenly distributed along the circumference.

[0009] In the above-mentioned riveting structure between a PCB board of a brushless motor and a bearing seat, a positioning notch communicating with the through hole is provided on the PCB board, and a positioning block adapted to the positioning notch is provided on the bearing seat.

[0010] After the present utility model adopts the above structure, the PCB board is fixed to the bearing seat by riveting the riveting piece, which can effectively simplify the fixing operation of the bearing seat, greatly improve the production efficiency, and ensure a tight connection between the two and a strong bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present utility model will be further described in detail below with reference to the embodiments in the drawings, but it does not constitute any limitation to the present utility model.

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is a schematic structural view of the PCB board of the present utility model;

[0014] Figure 3 is a schematic structural view of the bearing seat of the present utility model.

[0015] In the figure: 1, PCB board; 2, bearing seat; 2a, riveting part; 2b, mounting seat; 2c, extension cylinder; 2d, reinforcing rib; 2e, lead-in chamfer; 3, through hole; 4, riveting piece; 5, positioning notch; 6, positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Refer to Figures 1-3 As shown, a riveting structure of a brushless motor PCB board and a bearing seat of the present utility model includes a PCB board 1 and a bearing seat 2, and is characterized in that a through hole 3 adapted to the bearing seat 2 is provided on the PCB board 1, and a plurality of riveting pieces 4 are evenly distributed along the circumference on the bearing seat 2; when the bearing seat 2 is located in the through hole 3, the riveting pieces 4 are bent to cooperate with the bearing seat 2 to clamp the PCB board 1. Align the PCB board and the bearing seat, and then use a tooling to rivet the riveting pieces on the bearing seat to the board to complete the fixed cooperation between the PCB board and the bearing seat, which can effectively simplify the fixing operation of the bearing seat, greatly improve the production efficiency, and ensure a tight connection between the two and a strong bearing capacity.

[0017] In this embodiment, the bearing seat 2 includes a riveting part 2a with an outer diameter adapted to the through hole 3 and a thickness the same as that of the PCB board 1, and a mounting seat 2b for connecting the motor is integrally formed at one end of the riveting part 2a, and the diameter of the mounting seat 2b is larger than that of the riveting part 2a; the riveting pieces 4 are evenly distributed along the circumference at the free end of the riveting part 2a. After the riveting part is matched with the through hole, the riveting pieces are bent to cooperate with the mounting seat to clamp the PCB board to complete the fixation.

[0018] In this embodiment, preferably, an extension cylinder 2c is integrally formed at the free end of the riveting portion 2a, and a plurality of reinforcing ribs 2d are evenly distributed circumferentially on the outer wall of the extension cylinder 2c. The outer diameter of the extension cylinder is smaller than that of the riveting portion. By providing the extension cylinder and the reinforcing ribs, the stability of the motor shaft during operation in the bearing seat can be increased.

[0019] Further preferably, the outer diameter of the reinforcing rib 2d is equal to the outer diameter of the riveting portion 2a, and a guiding chamfer 2e is provided at the end of the free end of the reinforcing rib 2d. Since the outer diameter of the extension cylinder is smaller than that of the riveting portion, after adopting this structure, the inner wall of the through hole can be directly sleeved onto the riveting portion along the reinforcing rib for cooperation, which can prevent the extension cylinder from tilting and getting stuck during the sleeving process.

[0020] In this embodiment, at least 6 riveting pieces 4 are evenly distributed circumferentially. By providing a sufficient number of riveting pieces, the riveting force between the riveting pieces and the bearing seat can be increased, the tightness of the connection can be improved, and it is not easy to loosen when one of the riveting pieces is loosened.

[0021] In this embodiment, a positioning notch 5 communicating with the through hole 3 is provided on the PCB board 1, and a positioning block 6 cooperating with the positioning notch 5 is provided on the bearing seat 2. After adopting this structure, the bearing seat is limited by the cooperation of the positioning notch and the positioning block, which is used to ensure that the bearing seat does not rotate when the riveting piece loosens during operation, and the stability of the bearing seat is increased.

[0022] During use, align the extension cylinder with the through hole and sleeve it on the PCB board. When the riveting portion is engaged with the through hole, the riveting piece is bent and riveted onto the PCB board to cooperate with the mounting seat and clamp it to complete the fixation through a tooling.

[0023] The above-mentioned embodiments are the preferred embodiments of the present invention, which are only used to conveniently illustrate the present invention and do not impose any form of limitation on the present invention. Any person with ordinary knowledge in the technical field, without departing from the technical features of the present invention, makes local changes or modified equivalent embodiments using the technical content disclosed by the present invention, and without departing from the technical feature content of the present invention, still belongs to the scope of the technical features of the present invention.

Claims

1. A brushless motor PCB board and bearing seat riveted structure, comprising a PCB board (1) and a bearing seat (2), characterized in that: The PCB board (1) is provided with a through hole (3) that matches the bearing seat (2), and a plurality of rivet plates (4) are evenly distributed along the circumference of the bearing seat (2); when the bearing seat (2) is located in the through hole (3), the rivet plates (4) bend and match the bearing seat (2) to clamp the PCB board (1).

2. The riveting structure of a brushless motor PCB board and a bearing seat according to claim 1, characterized in that: The bearing seat (2) comprises a riveted portion (2a) having an outer diameter adapted to the through hole (3) and having a thickness the same as that of the PCB board (1); a mounting seat (2b) for connecting to a motor is integrally formed at one end of the riveted portion (2a); the mounting seat (2b) has a diameter greater than that of the riveted portion (2a); and the riveted sheets (4) are evenly distributed at the free end of the riveted portion (2a) along the circumferential direction.

3. The riveting structure of a brushless motor PCB board and a bearing seat according to claim 2, characterized in that: An extension tube (2c) is integrally formed on the free end of the riveted portion (2a), and a plurality of reinforcing ribs (2d) are evenly distributed along the circumferential direction on the outer wall of the extension tube (2c).

4. The riveting structure of a brushless motor PCB board and a bearing seat according to claim 3, characterized in that: The outer diameter of the reinforcing rib (2d) is equal to the outer diameter of the riveted portion (2a), and an introduction chamfer (2e) is provided at the free end of the reinforcing rib (2d).

5. The riveting structure of a brushless motor PCB board and a bearing seat according to claim 1, characterized in that: At least six rivet plates (4) are evenly distributed along the circumferential direction.

6. The brushless motor PCB and bearing seat riveting structure according to claim 1, characterized in that: The PCB board (1) is provided with a positioning notch (5) which is in communication with the through hole (3), and the bearing seat (2) is provided with a positioning block (6) which matches the positioning notch (5).

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