Connecting structure of miniature direct-current motor brush assembly

Abstract

The utility model relates to the technical field of miniature direct current motors, and discloses a connecting structure of a miniature direct current motor brush assembly, which comprises a main board, the bottom of the main board is fixedly connected with a plurality of connecting discharge materials at equal intervals along the horizontal direction, and the bottoms of the plurality of connecting discharge materials are provided with false cutting grooves. According to the technical scheme of the utility model, the existing motor is generally composed of the casing assembly, the rotor and the cover plate, and the direct current supplied from the outside is converted into the alternating current through the conversion effect that the commutator is matched with the electric brush, so that the direct current can be converted into the alternating current, and the direct current can be converted into the alternating current. According to the technical scheme of the utility model, an electrified coil on a rotor is subjected to torque force in the same direction in a fixed magnetic field, so that the rotor rotates, a false cut connecting part is solid, an electric brush assembly is obtained by breaking off a false cut position during actual production, and a brush carrier is easy to bend to generate a bad effect due to the fact that the electric brush assembly is solid and large in breaking force. Therefore, the production effect of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of micro direct current motors, in particular to a connection structure of a brush assembly of a micro direct current motor. Background Technique

[0002] A machine for inputting and outputting direct current, a micro direct current motor refers to a rotating motor with direct current electrical energy as output or input, which is the earliest invented device that can convert electrical energy into mechanical energy. It can be traced back to the disc-shaped motor invented by Faraday and has become the main device for converting electrical energy into mechanical energy. However, due to the increasing popularity of alternating current, induction motors and synchronous motors have been invented, and the importance of direct current motors has decreased accordingly.

[0003] When a micro direct current motor is in use, it generally consists of a housing assembly, a rotor, and a cover plate. Through the conversion function of the commutator cooperating with the brush, the externally supplied direct current is converted into alternating current, so that the energized coil on the rotor is subjected to a torque force in the same direction in a fixed magnetic field, and thus the rotor rotates. Its false cut connection part is solid. During actual production, the brush assembly is obtained by breaking the false cut position. Because it is solid, the breaking force is relatively large, and it is very easy to cause the brush holder to bend and produce adverse effects, thereby reducing the production effect of the device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connection structure of a brush assembly of a micro direct current motor, so as to solve the problem that the existing one generally consists of a housing assembly, a rotor, and a cover plate. Through the conversion function of the commutator cooperating with the brush, the externally supplied direct current is converted into alternating current, so that the energized coil on the rotor is subjected to a torque force in the same direction in a fixed magnetic field, and thus the rotor rotates. Its false cut connection part is solid. During actual production, the brush assembly is obtained by breaking the false cut position. Because it is solid, the breaking force is relatively large, and it is very easy to cause the brush holder to bend and produce adverse effects, thereby reducing the production effect of the device.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A connection structure of a brush assembly of a micro direct current motor, including a main board, a plurality of connection discharge materials are fixedly connected to the bottom of the main board at equal intervals along the horizontal direction, false cut grooves are arranged at the bottoms of the plurality of connection discharge materials, clamping blocks are clamped and connected inside the plurality of false cut grooves, brush holders are fixedly connected to the bottoms of the plurality of clamping blocks, circular holes are arranged between the tops of the plurality of brush holders and the bottoms of the connection discharge materials near the center, and spherical clamping blocks are penetrated and clamped and connected to the inner surfaces of the plurality of circular holes.

[0006] As a preferred implementation manner, brushes are fixedly connected to the outer surfaces of the front sides of the plurality of brush holders near the top edges.

[0007] As a preferred embodiment, two screw holes are formed at the edges near one side of the front outer surface of each of the plurality of brushes, and fixing screws are threadedly connected to the interiors of every two of the screw holes, and the fixing screws fixedly connect the brushes to the brush holders.

[0008] As a preferred embodiment, brush heads are fixedly arranged on the outer surfaces of one sides of the plurality of brushes.

[0009] As a preferred embodiment, two card slots are formed at the centers near the front outer surfaces of the plurality of brush holders.

[0010] As a preferred embodiment, connection holes are formed at the edges near the bottoms of the front outer surfaces of the plurality of brush holders.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, the connection and discharging are fixedly connected through the main board, so that the brush holders are convenient to be fixed on the connection and discharging. When the device needs to produce brushes, by pushing the spherical engaging block, the spherical engaging block is disengaged from the round hole, so that a part is missing between the connection and discharging and the brush holders. A round hole is formed at the false cutting groove part of the brush assembly through punching, so that the connection strength is suitable: it will not be too large in strength, resulting in a large breaking force and causing the brush holder to bend when broken; nor will it be too small in strength, resulting in easy deformation during transportation and turnover. Thus, the device is convenient to produce brushes and is convenient to be effectively used. Further, through the arrangement of the card slots, the brush holders are convenient to be fixed at a certain place for use, and through the connection holes, the connection parts can be better connected, so that the brushes can be better stored, and the device is convenient to have a better production effect, improving the production effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front perspective structural schematic diagram of a connection structure of a brush assembly of a micro DC motor proposed by the present utility model;

[0014] Figure 2 is a side perspective structural schematic diagram of a connection structure of a brush assembly of a micro DC motor proposed by the present utility model;

[0015] Figure 3 is a top perspective structural schematic diagram of a connection structure of a brush assembly of a micro DC motor proposed by the present utility model;

[0016] Figure 4 is a connection structure of a brush assembly of a micro DC motor proposed by the present utility model Figure 1 The perspective structural schematic diagram at position A.

[0017] In the figure: 1, main board; 2, connecting discharge; 3, false cutting groove; 4, brush holder; 5, clamping block; 6, round hole; 7, spherical clamping block; 8, carbon brush; 9, screw hole; 10, fixing screw; 11, brush head; 12, card slot; 13, connecting hole. Specific implementation mode

[0018] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0019] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0020] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a connection structure of a carbon brush 8 assembly of a micro DC motor, including a main board 1, a plurality of connecting discharges 2 are fixedly connected to the bottom of the main board 1 at equal intervals along the horizontal direction, false cutting grooves 3 are arranged at the bottoms of the plurality of connecting discharges 2, clamping blocks 5 are clamped and connected inside the plurality of false cutting grooves 3, brush holders 4 are fixedly connected to the bottoms of the plurality of clamping blocks 5, round holes 6 are arranged between the tops of the plurality of brush holders 4 and the bottoms of the connecting discharges 2 close to the center, spherical clamping blocks 7 are penetrated and clamped and connected to the inner surfaces of the plurality of round holes 6. By fixing the connecting discharge 2 through the main board 1, the brush holder 4 is conveniently fixed on the connecting discharge 2. When the device needs to produce the carbon brush 8, by pushing the spherical clamping block 7, the spherical clamping block 7 is separated from the round hole 6, so that a part is missing between the connecting discharge 2 and the brush holder 4, and a round hole 6 is formed by punching at the false cutting groove 3 of the carbon brush 8 assembly, so that the connection strength is suitable: it will not be too strong, resulting in a large breaking force and causing the brush holder 4 to bend when broken; nor will it be too weak, resulting in easy deformation during transportation and turnover.

[0021] Carbon brushes 8 are fixedly connected to the outer surfaces of the front sides of the plurality of brush holders 4 close to the top edges, two screw holes 9 are opened on the outer surfaces of the front sides of the plurality of carbon brushes 8 close to one side edges, fixing screws 10 are threadedly connected inside each two screw holes 9, and the fixing screws 10 fixedly connect the carbon brushes 8 and the brush holders 4. Brush heads 11 are fixedly arranged on the outer surfaces of one sides of the plurality of carbon brushes 8. By means of the fixing screws 10, the carbon brushes 8 are conveniently fixed on the brush holders 4, so that the production strength of the carbon brushes 8 is better.

[0022] Two card slots 12 are provided near the center of the front outer surface of each of the multiple brush holders 4, and connection holes 13 are provided at the edges near the bottom of the front outer surface of each of the multiple brush holders 4. Through the connection holes 13, the connection part can be better made, so that the electric brushes 8 can be better stored, making the device convenient for better production effect and improving the production effect of the device.

[0023] Working principle: When the device is in use, first, the discharge 2 is fixedly connected through the main board 1, so that the brush holder 4 is convenient to be fixed on the discharge 2. When the device needs to produce the electric brush 8, by pushing the spherical engaging block 7, the spherical engaging block 7 is separated from the round hole 6, so that there is a lack between the discharge 2 and the brush holder 4. The electric brush 8 assembly forms a round hole 6 through punching at the false cutting groove 3 part, making the connection strength suitable: it will not break due to too large strength, resulting in a large breaking force and causing the brush holder 4 to bend when broken; nor will it be easily deformed during transportation and turnover due to too small strength. Thus, the device is convenient for producing the electric brush 8, making the device convenient for effective use. Further, through the setting of the card slots 12, the brush holder 4 is convenient to be fixed at a certain place for use. Through the connection holes 13, the connection part can be better made, so that the electric brushes 8 can be better stored, making the device convenient for better production effect and improving the production effect of the device.

[0024] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A connection structure of a brush assembly of a micro DC motor, comprising a main board (1), characterized in that: The bottom of the main board (1) is fixedly connected with a plurality of connection row materials (2) at equal intervals in the horizontal direction, the bottoms of the plurality of connection row materials (2) are all provided with false grooves (3), the interiors of the plurality of false grooves (3) are all snap-connected with clamping blocks (5), the bottoms of the plurality of clamping blocks (5) are all fixedly connected with brush holders (4), the tops of the plurality of brush holders (4) and the bottoms of the connection row materials (2) are all provided with circular holes (6), and the inner surfaces of the plurality of circular holes (6) are all penetrated with spherical clamping blocks (7) snap-connected.

2. The connection structure of a micro DC motor brush assembly according to claim 1, characterized in that: Electric brushes (8) are fixedly connected to the edges of the front outer surfaces of the plurality of brush holders (4) close to the top.

3. The connection structure of a micro DC motor brush assembly according to claim 2, characterized in that: Two screw holes (9) are provided on the front outer surfaces of the plurality of brushes (8) near one edge, and a fixing screw (10) is threadedly connected inside each of the two screw holes (9), and the fixing screw (10) fixes the brush (8) and the brush holder (4) together.

4. The connection structure of a micro DC motor brush assembly according to claim 3, characterized in that: A brush head (11) is fixedly arranged on one outer surface of each of the plurality of brushes (8).

5. The connection structure of a micro DC motor brush assembly according to claim 3, characterized in that: Two slots (12) are provided near the center of the front outer surfaces of the plurality of brush holders (4).

6. The connection structure of a micro DC motor brush assembly according to claim 3, characterized in that: A connection hole (13) is provided on the edge of the front outer surface of each of the plurality of brush holders (4) close to the bottom.

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