Reinforcing device and commutator

Abstract

The utility model provides a reinforcing device and a commutator, and belongs to the technical field of commutators. The reinforcing device comprises a commutator base and commutator copper sheets. The outer side of the commutator base is provided with a plurality of slots in an annular array, the interior of each slot is fixedly connected with a clamping column, the inner side of each commutator copper sheet is provided with a spring clamping sheet, the spring clamping sheet is clamped at the outer side of the clamping column, each clamping column is provided with a first sawtooth part, and the first sawtooth part is provided with a second sawtooth part. And each spring clamping sheet is provided with a bending part matched with the corresponding first sawtooth part. Through the cooperation of the first sawtooth part and the bending part, the spring clamping sheet and the clamping column can be reinforced, the commutator copper sheet is prevented from shaking in use, the stability of the commutator in use is improved, the service life of the commutator is prolonged, and the use effect of the commutator is improved.

Description

Technical Field

[0001] This application relates to the field of commutators, and more particularly, to a reinforcement device and a commutator. Background Art

[0002] A commutator, also known as a "commutator". It is an important component on the armature of a DC motor and an AC commutator motor. It consists of many copper sheets separated by mica sheets, forming a cylindrical or disc shape. Each copper sheet is connected to several armature winding elements. When the armature rotates, the copper sheets successively come into contact with the fixed carbon brushes. In a DC motor, the alternating current in the armature winding is converted into direct current between the carbon brushes through the carbon brushes and the commutator. In an AC commutator motor, the frequency of the alternating current between the carbon brushes is made to meet the working requirements.

[0003] When the commutator segments on the commutator come into contact with the carbon brushes and rotate, they are prone to wear. Therefore, the commutator segments need to be replaced. For example, a commutator disclosed in Chinese Patent Publication No. CN220896023U makes it more convenient to replace the copper sheets of the commutator through the cooperation of arc-shaped elastic insert members and slots. It can be quickly replaced without the aid of auxiliary tools, especially when replacing multiple copper sheets of the commutator, it is even faster. However, the connection stability between the arc-shaped elastic insert members and the slots is poor, resulting in poor stability of the copper sheets of the commutator during use, affecting the service life and use effect of the commutator. Summary of the Utility Model

[0004] To make up for the above deficiencies, this application provides a reinforcement device and a commutator, aiming to improve the problem that the connection stability between the arc-shaped elastic insert members and the slots is poor, resulting in poor stability of the copper sheets of the commutator during use, affecting the service life and use effect of the commutator.

[0005] On the one hand, an embodiment of this application provides a reinforcement device, including a commutator base and commutator copper sheets.

[0006] A plurality of slots are arranged in a circular array on the outer side of the commutator base. A clamping post is fixedly connected to the inside of each slot. A spring card is arranged on the inner side of each commutator copper sheet, and the spring card is clamped outside the clamping post. A first serrated portion is arranged on each clamping post, and a bending portion is arranged on each spring card to cooperate with the first serrated portion.

[0007] In a specific implementation, an auxiliary reinforcement member is connected to each spring card, and the auxiliary reinforcement member is detachably connected to the inner side wall of the corresponding slot.

[0008] In a specific embodiment, the auxiliary reinforcement member includes a connecting column and an elastic insertion block. One end of the connecting column is connected to the spring clip, the elastic insertion block is connected to the other end of the connecting column, and the elastic insertion block is detachably connected to the inner side wall of the slot.

[0009] In a specific embodiment, a clamping groove matching with the elastic insertion block is formed in the inner side wall of each slot.

[0010] In a specific embodiment, a second serrated portion is arranged on the elastic insertion block, and the shape inside the clamping groove matches with that of the second serrated portion.

[0011] In a specific embodiment, the opening of the spring clip is in a flared shape, and the clamping column is clamped inside the flared opening of the spring clip.

[0012] In a specific embodiment, the spring clip is also integrally formed with a mounting plate, and the mounting plate is connected to the inner side of the commutator copper sheet.

[0013] On the other hand, the embodiment of the present application further provides a commutator, including the above-mentioned reinforcement device.

[0014] Beneficial effects: Through the cooperation of the first serrated portion and the bending portion, the reinforcement between the spring clip and the clamping column can be realized, preventing the commutator copper sheet from shaking during use, thereby increasing the stability of the commutator during use and improving the service life and use effect of the commutator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of the reinforcement device and the commutator provided by the embodiment of the present application;

[0017] Figure 2 is a schematic structural diagram of the commutator base provided by the embodiment of the present application;

[0018] Figure 3 is a schematic structural diagram of the connection relationship between the commutator copper sheet and the commutator base provided by the embodiment of the present application;

[0019] Figure 4 is provided by the embodiment of the present application Figure 3 The enlarged structural diagram at A in

[0020] Figure 5 Schematic diagram of the connection structure between the spring card and the clamping post provided by the embodiment of the present application.

[0021] In the figure: 1 - commutator base; 11 - slot; 12 - clamping groove; 2 - commutator copper sheet; 3 - clamping post; 31 - first serrated portion; 4 - spring card; 41 - bending portion; 5 - auxiliary reinforcement; 51 - connecting post; 52 - elastic insert block; 6 - mounting plate. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0023] Please refer to Figures 1 - 5 , the present application provides a reinforcement device, including a commutator base 1 and a commutator copper sheet 2.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a plurality of slots 11 are arranged in an annular array on the outer side of the commutator base 1, a clamping post 3 is fixedly connected to the inside of each slot 11, a spring card 4 is arranged on the inner side of each commutator copper sheet 2, and the spring card 4 is clamped on the outer side of the clamping post 3. A first serrated portion 31 is arranged on each clamping post 3, and a bending portion 41 matching the first serrated portion 31 is arranged on each spring card 4. Among them, during replacement, the inner side of the commutator copper sheet 2 is pushed into the inside of the slot 11 opened on the commutator base 1. At this time, the spring card 4 can clamp the clamping post 3, and the bending portion 41 of the spring card 4 is clamped at the groove of the first serrated portion 31 to realize the installation of the commutator copper sheet 2. Through the cooperation of the first serrated portion 31 and the bending portion 41, the spring card 4 and the clamping post 3 can be reinforced, preventing the commutator copper sheet 2 from shaking during use, thereby increasing the stability of the commutator during use and improving the service life and use effect of the commutator.

[0025] In this embodiment, an auxiliary reinforcement member 5 is connected to each spring card 4, and the auxiliary reinforcement member 5 is detachably connected to the inner side wall of the corresponding slot 11. The auxiliary reinforcement member 5 includes a connecting column 51 and an elastic insertion block 52. One end of the connecting column 51 is connected to the spring card 4, the elastic insertion block 52 is connected to the other end of the connecting column 51, and the elastic insertion block 52 is detachably connected to the inner side wall of the slot 11. A clamping groove 12 matching with the elastic insertion block 52 is formed in the inner side wall of each slot 11. A second serrated portion is provided on the elastic insertion block 52, and the shape inside the clamping groove 12 matches with the second serrated portion. After the clamping post 3 is completely inserted into the spring card 4, the elastic insertion block 52 is inserted into the clamping groove 12. Under the action of the second serrated portion, the connection between the commutator copper sheet 2 and the commutator base 1 is made more stable.

[0026] In this embodiment, the opening of the spring card 4 is in a horn shape, and the clamping post 3 is arranged inside the horn mouth of the spring card 4. The spring card 4 is also integrally formed with a mounting plate 6, and the mounting plate 6 is connected to the inner side of the commutator copper sheet 2.

[0027] Please refer to Figures 1 - 5 , another commutator is provided in an embodiment of the present application, including the above-mentioned reinforcement device. During replacement, the inner side of the commutator copper sheet 2 is pushed into the inside of the side of the commutator base 1 where the slot 11 is provided. At this time, the spring card 4 can clamp the clamping post 3, and the bent portion 41 of the spring card 4 is clamped in the groove of the first serrated portion 31, so as to realize the installation of the commutator copper sheet 2. Through the cooperation of the first serrated portion 31 and the bent portion 41, the reinforcement between the spring card 4 and the clamping post 3 can be realized, preventing the commutator copper sheet 2 from shaking during use, thereby increasing the stability of the commutator during use and improving the service life and use effect of the commutator.

[0028] The working principle of the reinforcement device and the commutator:

[0029] During replacement, the inner side of the commutator copper sheet 2 is pushed into the inside of the side of the commutator base 1 where the slot 11 is provided. At this time, the spring card 4 can clamp the clamping post 3, and the bent portion 41 of the spring card 4 is clamped in the groove of the first serrated portion 31, so as to realize the installation of the commutator copper sheet 2. Through the cooperation of the first serrated portion 31 and the bent portion 41, the reinforcement between the spring card 4 and the clamping post 3 can be realized, preventing the commutator copper sheet 2 from shaking during use, thereby increasing the stability of the commutator during use and improving the service life and use effect of the commutator.

[0030] The above are only the embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A reinforcement device, characterized in that, Comprising A commutator base (1) and commutator copper sheets (2), a plurality of slots (11) are arranged in an annular array on the outer side of the commutator base (1), a clamping post (3) is fixedly connected to the inside of each slot (11), a spring clip (4) is arranged on the inner side of each commutator copper sheet (2), and the spring clip (4) is clamped on the outer side of the clamping post (3). A first serrated portion (31) is arranged on each clamping post (3), and a bending portion (41) that cooperates with the first serrated portion (31) is arranged on each spring clip (4).

2. The reinforcement device according to claim 1, characterized in that, An auxiliary reinforcement member (5) is connected to each spring clip (4), and the auxiliary reinforcement member (5) is detachably connected to the inner side wall of the corresponding slot (11).

3. The reinforcement device according to claim 2, characterized in that, The auxiliary reinforcement member (5) includes a connecting column (51) and an elastic insertion block (52). One end of the connecting column (51) is connected to the spring clip (4), the elastic insertion block (52) is connected to the other end of the connecting column (51), and the elastic insertion block (52) is detachably connected to the inner side wall of the slot (11).

4. The reinforcement device according to claim 3, characterized in that, A card slot (12) that cooperates with the elastic insertion block (52) is formed in the inner side wall of each slot (11).

5. The reinforcement device according to claim 4, characterized in that, A second serrated portion is arranged on the elastic insertion block (52), and the shape inside the card slot (12) matches the second serrated portion.

6. The reinforcement device according to claim 1, wherein, The opening of the spring clip (4) is trumpet-shaped, and the clamping post (3) is clamped inside the trumpet opening of the spring clip (4).

7. The reinforcement device according to claim 1, characterized in that, The spring clip (4) is also integrally formed with a mounting plate (6), and the mounting plate (6) is connected to the inner side of the commutator copper sheet (2).

8. Commutator, characterized in that, Comprising The reinforcement device according to any one of claims 1-7.

Images