Anti-interference middle plate structure for direct current motor

Abstract

The utility model provides an anti-interference middle plate structure for a direct current motor, which comprises a middle plate and carbon brush structures, the middle plate is circular, and two sides of the middle plate are connected with the carbon brush structures; the carbon brush structure comprises a carbon brush tube and a terminal; the carbon brush tubes are arranged along the center line of the middle plate and extend out of the middle plate from the center to the two sides. And the terminal is positioned at one end of the carbon brush tube and is connected with the carbon brush tube. According to the anti-interference middle plate structure for the direct-current motor provided by the utility model, the position of the inductor is arranged, so that the inductor is convenient to install and is not fixed through glue, the assembly efficiency is improved, and abnormal conditions are reduced; meanwhile, spot welding and riveting are adopted for fixing, soldering tin is not needed, cost and working procedures can be reduced, and working hours are saved.

Description

Technical Field

[0001] This utility model relates to an anti-interference middle plate structure for DC motors. Background Technology

[0002] Currently, brushless DC motors are widely used in various fields. Therefore, the stability of motor operation is also valued by manufacturers. In order to apply traditional motors to new fields, not only are their size and shape reduced accordingly to save more space, but the application environment is also becoming more and more complex, making them easily susceptible to EMC interference. This can cause abnormal motor control and affect their use.

[0003] The traditional approach is to add anti-interference components, such as capacitors or inductors, inside the motor to effectively prevent interference. However, due to the miniaturization of conventional motors, there is not much space to install inductors on the middle plate. Redesigning the motor middle plate would increase design and manufacturing costs. The current conventional technology is to glue the inductor to the motor middle plate with epoxy adhesive. This not only fails to fix the inductor position, but also causes adhesive overflow, affecting product quality.

[0004] Another method is to fix it by soldering, which requires soldering the inductor to the carbon brush and the terminal separately. Although this fixes the inductor, the soldering process requires additional steps, such as stripping the wire ends, which undoubtedly increases costs and processes, and is not the optimal choice in the market. Utility Model Content

[0005] This utility model aims to provide an anti-interference intermediate plate structure for DC motors. By redesigning the structure of the intermediate plate and carbon brush, the position of the inductor is increased without expanding the original size of the intermediate plate. At the same time, the two ends of the inductor are connected to the carbon brush structure, which can improve the fixing structure of the inductor, save labor time and reduce production costs.

[0006] To solve the above problems, the present invention provides an anti-interference middle plate structure for a DC motor, which adopts the following technical solution:

[0007] An anti-interference middle plate structure for a DC motor includes a middle plate and a carbon brush structure. The middle plate is circular in shape and the carbon brush structure is connected to both sides. The carbon brush structure includes a carbon brush tube and a terminal. The carbon brush tube is arranged along the center line of the middle plate and extends outward from the center to both sides outside the middle plate. The terminal is located at one end of the carbon brush tube and is connected to the carbon brush tube.

[0008] A hollow square hole is provided inside the middle plate for connecting internal components of the motor. An inductor is provided between the hollow square hole and the outer wall of the middle plate. The inductor is fixed to the middle plate. A slot is provided on the middle plate to restrict the position of the inductor.

[0009] Furthermore, the inductor has two terminals that extend outward to connect to the carbon brush structure.

[0010] Furthermore, one end of the inductor extends outward and connects to the terminal.

[0011] Furthermore, the other end of the inductor extends into the carbon brush structure and is connected to the carbon brush.

[0012] Furthermore, the end is connected to the terminal by riveting.

[0013] Furthermore, the end is connected to the carbon brush by spot welding.

[0014] Furthermore, there are two inductors, symmetrically distributed on both sides of the middle plate, corresponding one-to-one with the carbon brush structure.

[0015] Furthermore, the slot is provided with a support boss inside, which is used to support and limit the position of the inductor.

[0016] The beneficial effects of this utility model are as follows: The anti-interference middle plate structure for DC motors provided by this utility model facilitates the installation of inductors by setting the inductor position, eliminating the need for glue fixation, improving assembly efficiency and reducing abnormal situations; at the same time, the fixing method adopts spot welding and riveting, eliminating the need for solder, which can reduce costs and processes and save time. Attached Figure Description

[0017] Appendix Figure 1 This is a structural development diagram of the present invention.

[0018] The components are: 1. middle plate, 2. carbon brush structure, 3. carbon brush tube, 4. terminal, 5. hollow square hole, 6. inductor, 7. card slot, 8. bearing boss, 9. end. Detailed Implementation

[0019] To better understand the technical solution provided by this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] As shown in the attached figure, the present invention provides an anti-interference middle plate structure for a DC motor, comprising a middle plate 1 and a carbon brush structure 2. The middle plate 1 is circular in shape, with the carbon brush structure 2 connected to both sides. The carbon brush structure 2 includes a carbon brush tube 3 and a terminal 4. The carbon brush tube 3 is arranged along the center line of the middle plate 1 and extends outward from the center to both sides outside the middle plate 1. The terminal 4 is located at one end of the carbon brush tube 3 and is connected to the carbon brush tube 3.

[0021] A hollow square hole 5 is provided inside the middle plate 1 for connecting internal components of the motor. An inductor 6 is provided between the hollow square hole 5 and the outer wall of the middle plate 1. The inductor 6 is fixed on the middle plate 1. A slot 7 is provided on the middle plate 1 to limit the position of the inductor 6.

[0022] Furthermore, the inductor 6 is provided with two ends 9, which extend outward to connect to the carbon brush structure 2.

[0023] Furthermore, one end 9 of the inductor 6 extends outward and is connected to the terminal 4.

[0024] Furthermore, the other end 9 of the inductor 6 extends into the carbon brush structure 2 and is connected to the carbon brush.

[0025] Furthermore, the end 9 is connected to the terminal 4 by riveting.

[0026] Furthermore, the end 9 is connected to the carbon brush by spot welding.

[0027] Furthermore, there are two inductors 6, symmetrically distributed on both sides of the middle plate 1, corresponding one-to-one with the carbon brush structure 2.

[0028] Furthermore, the slot 7 is provided with a support boss 8 inside, which is used to support and limit the position of the inductor 6.

Claims

1. An anti-interference middle plate structure for a DC motor, characterized in that, The device includes a middle plate and a carbon brush structure. The middle plate is circular in shape and connected to the carbon brush structure on both sides. The carbon brush structure includes a carbon brush tube and a terminal. The carbon brush tube is arranged along the center line of the middle plate and extends outward from the center to both sides outside the middle plate. The terminal is located at one end of the carbon brush tube and is connected to the carbon brush tube. A hollow square hole is provided inside the middle plate for connecting internal components of the motor. An inductor is provided between the hollow square hole and the outer wall of the middle plate. The inductor is fixed to the middle plate. A slot is provided on the middle plate to restrict the position of the inductor.

2. The anti-interference middle plate structure for a DC motor according to claim 1, characterized in that, The inductor has two terminals that extend outward to connect to the carbon brush structure.

3. The anti-interference middle plate structure for a DC motor according to claim 2, characterized in that, One end of the inductor extends outward and is connected to the terminal.

4. The anti-interference middle plate structure for a DC motor according to claim 2, characterized in that, The other end of the inductor extends into the carbon brush structure and is connected to the carbon brush.

5. The anti-interference middle plate structure for a DC motor according to claim 3, characterized in that, The end is connected to the terminal by riveting.

6. The anti-interference middle plate structure for a DC motor according to claim 4, characterized in that, The end is connected to the carbon brush by spot welding.

7. The anti-interference middle plate structure for a DC motor according to claim 1, characterized in that, There are two inductors, symmetrically distributed on both sides of the middle plate, corresponding one-to-one with the carbon brush structure.

8. The anti-interference middle plate structure for a DC motor according to claim 1, characterized in that, The slot is provided with a support boss inside, which is used to support and limit the position of the inductor.

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