Commutator easy to weld

Abstract

The utility model provides a commutator easy to weld, and belongs to the technical field of motors. The commutator easy to weld comprises a base and commutator segments arranged around the base, the commutator segments are divided into two groups and are alternately arranged, and welding spots of the two groups of commutator segments have an axial distance. The commutator has the following effects: the commutator segments are alternately arranged, so that enough spacing is formed between the welding spots on each commutator segment and the adjacent welding spots, a relatively large space is provided for the welding head, the condition that the adjacent welding spots are short-circuited when the welding head is used for welding is avoided, and the welding operation is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and more particularly, to a commutator that is easy to weld. Background Art

[0002] Soldering points are provided on the commutator segments of the motor for welding with the wires of the winding. When the number of commutator segments is large, the soldering points will be small, and it is easy to touch the adjacent soldering points during welding, resulting in short - circuit defects. Summary of the Utility Model

[0003] To make up for the above deficiencies, the present application provides a commutator that is easy to weld, aiming to improve the problems mentioned in the above background art.

[0004] An embodiment of the present application provides a commutator that is easy to weld, including a base and commutator segments arranged around the base in a week. The commutator segments are divided into two groups and arranged alternately, and the soldering points of the two groups of commutator segments have an axial distance.

[0005] In a specific implementation, grooves adapted to the commutator segments are provided on the base.

[0006] In the above implementation process, the grooves are used to position the commutator segments and also provide lateral support force for the commutator segments to ensure the stability of the commutator segments.

[0007] In a specific implementation, the clearance grooves between the commutator segments are arranged in an unequal - division manner.

[0008] In the above implementation process, the unequal - division arrangement of the clearance grooves is used to reduce the noise during friction with the carbon brush.

[0009] In a specific implementation, the commutator segment includes a friction part, and a welding seat is arranged at one end of the friction part.

[0010] In a specific implementation, rough textures are provided on the welding seat.

[0011] In the above implementation process, the welding seat is higher than the friction part, providing a tin - receiving point for the soldering point. The rough textures are beneficial to increasing the connection strength with the tin - receiving point and reducing the situation of false soldering.

[0012] In a specific implementation, hook parts are provided on the welding seat.

[0013] In the above implementation process, the hook parts are used to connect with the wires of the winding.

[0014] In a specific implementation, T - shaped anchor claws are arranged on the back of the friction part, and the anchor claws are fixed in the base.

[0015] In the above implementation process, the anchor claw is embedded in the base for fixing the commutator segment. In this embodiment, the hook portion, the welding seat, the anchor claw, and the friction portion are all made of wear-resistant copper alloy.

[0016] In a specific implementation, the welding seat of the commutator segment close to the winding is inclined towards the axis of the base.

[0017] In the above implementation process, the inclination towards the axis makes the radial distance of the welding seats in this group smaller than that of the welding seats in the other group. Therefore, the two groups of solder joints not only have an axial distance but also a radial distance, which is beneficial to ensuring the spacing of the solder joints and also beneficial to avoiding the interference of the wires on adjacent hook portions.

[0018] Compared with the prior art, the beneficial effect of this application is that by alternately arranging the commutator segments, there is sufficient spacing between the solder joints on each commutator segment and the adjacent solder joints, thereby providing a larger space for the welding head and avoiding the short-circuit situation of adjacent solder joints caused by the welding head during welding, which is convenient for welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a first perspective view of a commutator that is easy to weld provided by an embodiment of this application;

[0021] Figure 2 is a second perspective view of a commutator that is easy to weld provided by an embodiment of this application;

[0022] Figure 3 is a schematic diagram of the connection relationship between adjacent commutator segments and the base provided by an embodiment of this application;

[0023] Figure 4 is a schematic diagram of the structure of a commutator segment provided by an embodiment of this application.

[0024] In the figure: 10 - base; 20 - commutator segment; 21 - friction portion; 22 - welding seat; 23 - hook portion; 24 - anchor claw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of this application will be described below with reference to the drawings in the embodiments of this application.

[0026] Please refer to Figures 1-4, the present application provides a commutator that is easy to weld, including a base 10 and commutator segments 20 arranged around the base 10 in a circle. The commutator segments 20 are divided into two groups and arranged alternately, and the solder joints of the two groups of commutator segments 20 have an axial distance. Among them, by arranging the commutator segments 20 alternately, there is sufficient spacing between the solder joints on each commutator segment 20 and the adjacent solder joints, thus providing a large space for the welding head and avoiding the short circuit of adjacent solder joints during welding, which facilitates the welding operation.

[0027] Please refer to Figures 1-4 , a groove adapted to the commutator segment 20 is provided on the base 10. The groove is used to position the commutator segment 20 and also to provide a lateral supporting force for the commutator segment 20 to ensure the stability of the commutator segment 20.

[0028] Please refer to Figures 1-4 , the clearance grooves between the commutator segments 20 are arranged in an unequal division. The unequal division of the clearance grooves is used to reduce the noise during friction with the carbon brush.

[0029] Please refer to Figures 1-4 , the commutator segment 20 includes a friction portion 21, and a solder seat 22 is provided at one end of the friction portion 21. A rough texture is provided on the solder seat 22. The solder seat 22 is higher than the friction portion 21, providing a tinning point for the solder joint. The rough texture is beneficial to increasing the connection strength with the tinning point and reducing the occurrence of false soldering.

[0030] Please refer to Figures 1-4 , a hook portion 23 is provided on the solder seat 22. The hook portion 23 is used to connect with the wire of the winding.

[0031] Please refer to Figures 1-4 , a T-shaped anchor claw 24 is provided on the back of the friction portion 21, and the anchor claw 24 is fixed in the base 10. The anchor claw 24 is embedded in the base 10 to fix the commutator segment 20. In this embodiment, the hook portion 23, the solder seat 22, the anchor claw 24, and the friction portion 21 are all made of wear-resistant copper alloy.

[0032] Please refer to Figures 1-4 , the solder seat 22 of the commutator segment 20 close to the winding is inclined towards the axis of the base 10. The inclination towards the axis makes the radial distance of this group of solder seats 22 smaller than the radial distance of the other group of solder seats 22. Therefore, the two groups of solder joints not only have an axial distance but also a radial distance, which is beneficial to ensuring the spacing of the solder joints and also beneficial to avoiding the interference of the wires on adjacent hook portions 23.

[0033] The working principle of the easily weldable commutator is as follows: The commutator segments 20 are divided into two groups and arranged alternately. The welding seats 22 of one group are close to the winding and inclined towards the axis, so that there are axial and radial spacings between adjacent welding seats 22, enabling each welding point to obtain a larger space, which is beneficial for the operation of the welding head and avoids the occurrence of short circuits with adjacent welding points. In summary, by arranging the commutator segments 20 alternately, there is sufficient spacing between the welding points on each commutator segment 20 and the adjacent welding points, thus providing a larger space for the welding head and avoiding the occurrence of short circuits between adjacent welding points during welding, facilitating the welding operation.

[0034] The above are only embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, improvement, or equivalent replacement 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 represent 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 commutator that is easy to weld, characterized in that, It includes a base (10) and commutator segments (20) arranged around the base (10) in a circle. The commutator segments (20) are divided into two groups and arranged alternately, and the solder joints of the two groups of commutator segments (20) have an axial distance.

2. The commutator that is easy to weld according to claim 1, wherein Grooves adapted to the commutator segments (20) are formed on the base (10).

3. The commutator easy to weld according to claim 2, characterized in that, The clearance grooves between the commutator segments (20) are arranged in unequal parts.

4. The commutator easy to weld according to claim 3, characterized in that, The commutator segment (20) includes a friction part (21), and a solder seat (22) is arranged at one end of the friction part (21).

5. The commutator easy to weld according to claim 4, characterized in that, Rough textures are provided on the solder seat (22).

6. The commutator that is easy to weld according to claim 5, wherein, Hook parts (23) are provided on the solder seat (22).

7. The commutator easy to weld according to claim 6, characterized in that, A T-shaped anchor claw (24) is arranged on the back of the friction part (21), and the anchor claw (24) is fixed in the base (10).

8. The commutator easy to weld according to claim 7, characterized in that, The solder seat (22) of the commutator segment (20) close to the winding is inclined towards the axis of the base (10).

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