Micro motor end cover capable of rapidly replacing carbon brush

Abstract

The utility model relates to the field of micro motors, in particular to a micro motor end cover capable of quickly replacing a carbon brush, which comprises a machine body, a rear cover, an arc-shaped block and a mounting block, a coil is arranged on one side of the machine body, insertion rods are fixed on two sides of the coil, the arc-shaped block is inserted in the insertion rods, the mounting block with an elastic mechanism is arranged on the opposite side of the arc-shaped block, and the rear cover is fixed on the mounting block. Limiting blocks with elastic mechanisms are arranged on the opposite sides of the mounting blocks, an electric brush is clamped and fixed between the limiting blocks, and a rear cover is arranged on one side of the machine body. According to the device, the rear cover can be rapidly disassembled, the electric brush can be rapidly replaced, the device is small and light, operation is easy, work is reliable, and the problem that an existing micro motor lacks the function of efficiently and rapidly replacing the electric brush, consequently, a large amount of time needs to be consumed for disassembly during maintenance, and inconvenience is caused is solved.

Description

Technical Field

[0001] This utility model relates to the field of micro motors, and in particular to a micro motor end cap with a quick-replaceable carbon brush. Background Technology

[0002] A micro motor is a small, low-power electric motor, typically ranging in size from millimeters to centimeters, with output power ranging from a few milliwatts to hundreds of watts. It utilizes the principle of electromagnetic induction to convert electrical energy into mechanical energy, driving equipment. Based on its working principle, it can be classified into DC motors, stepper motors, vibration motors, etc. Micro motors are widely used in consumer electronics (such as mobile phone vibration motors), medical devices (such as micro pumps), robots (such as servo motors), automobiles (such as electric rearview mirror adjustments), and other fields. They are characterized by high efficiency, precision, and low noise, making them core driving components for modern miniaturized and automated equipment.

[0003] A search revealed patent publication number CN217935315U, which discloses a micro motor with good heat dissipation, relating to the field of micro motor technology. The invention includes a micro motor body with a rotating shaft mounted at its output end. A mounting groove is formed on the surface of the micro motor body, and a mounting block is slidably connected to the inner wall of the mounting groove. A heat sink is fixedly mounted on the top surface of the mounting block. Both the top surface of the mounting block and the inner wall of the mounting groove have screw holes, into which fixing bolts are inserted. This invention improves the heat dissipation effect of the micro motor body through the heat sink, thereby reducing the operating temperature of the micro motor body and extending its service life. It also allows for easy replacement of the heat sink when it is damaged. Furthermore, the inclusion of a silicone thermal pad enhances the thermal conductivity between the mounting block and the inner wall of the mounting groove, further improving heat dissipation.

[0004] While existing technologies offer good heat dissipation, they suffer from the drawback of lacking efficient and rapid brush replacement capabilities. This leads to time-consuming disassembly during maintenance, causing inconvenience. To address this issue, we propose a micro motor end cap with rapidly replaceable carbon brushes, thus resolving the aforementioned problem. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a micro motor end cover that allows for quick carbon brush replacement.

[0006] The technical solution of this utility model is as follows: a micro motor end cover with quick carbon brush replacement, comprising a body, a rear cover, an arc-shaped block, and a mounting block. A coil is provided on one side of the body, and insert rods are fixed on both sides of the coil. An arc-shaped block is inserted into the insert rods. A mounting block with an elastic mechanism is provided on the opposite side of the arc-shaped block. A limiting block with an elastic mechanism is provided on the opposite side of the mounting block. A brush is clamped and fixed between the limiting blocks. A rear cover is provided on one side of the body.

[0007] When using this device, the brush can be quickly replaced. Specifically, unscrew the screw, open the back cover, manually remove the arc-shaped block from the top of the plug, then manually pry open the limiting block to remove the brush for replacement. After replacement, return the device to its original position as if it were removed. This allows for quick replacement of the brush. The device only requires one screw for fixing, is quick to install and remove, simple to operate, and highly practical.

[0008] Preferably, the rear cover is fixedly connected to the body by symmetrically designed screws. The symmetrically designed screws ensure the stability and sealing of the rear cover installation, while facilitating disassembly and further simplifying the maintenance process.

[0009] Preferably, a limiting pin is inserted into the middle of the arc-shaped block, and the surface of the limiting pin is provided with a protrusion to prevent the limiting pin from rotating. The design of the limiting pin in the middle of the arc-shaped block and the protrusion on its surface effectively prevents the limiting pin from rotating, enhances the stability of the structure, and avoids brush fixing failure due to loosening.

[0010] Preferably, a spring is fixed between one side of the arc-shaped block and the mounting block, and the arc-shaped block and the mounting block are connected by the spring, which provides elastic buffering, making the brush smoother during installation and removal, and reducing mechanical wear.

[0011] Preferably, the mounting block has a mounting groove on one side, the brush is inserted into the mounting groove, the brush has grooves on both sides, and the limiting block is inserted into the groove to fix the position of the brush. The brush is fixed by the mounting groove and the groove and the limiting block, which ensures the accuracy and firmness of the brush installation and avoids displacement or falling off during use.

[0012] Preferably, a second spring is fixed to one side of the limiting block and the mounting groove, and the limiting block and the mounting groove are connected by the second spring, which further enhances the fixing effect of the brush and provides elastic compensation to adapt to brushes of different sizes and improves the versatility of the device.

[0013] Preferably, a gasket is fixed between one side surface of the body and the arc-shaped block, and four mounting posts are fixed on one side of the rear cover. The mounting posts are inserted into the upper end of the insertion rod and fit against the surface of the arc-shaped block after the rear cover is fixed. The design of the gasket reduces the friction between the body and the arc-shaped block and protects the contact surface. The mounting posts of the rear cover cooperate with the insertion rod to ensure that the position of the arc-shaped block is fixed after the rear cover is installed, thereby enhancing the stability of the overall structure.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model, through optimized structural design, enables quick and easy replacement of the brush, significantly improving maintenance efficiency. Symmetrical screw fixing, anti-rotation limit pins, elastic mechanisms (spring one, spring two), and the cooperation between the mounting groove and the limit block jointly ensure the stability of the brush installation and the convenience of operation.

[0016] Second, based on the first beneficial effect, the design of the gasket and mounting post further enhances the durability and sealing of the structure. The whole device is quick to assemble and disassemble and simple to operate, making it suitable for scenarios that require frequent maintenance.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a partial cross-sectional view of the present invention from a first angle;

[0020] Figure 3 This is a partial cross-sectional view of the present invention from a second angle;

[0021] Figure 4 This is a schematic diagram showing the location of the mounting column of this utility model;

[0022] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle.

[0023] Figure label:

[0024] 1. Body; 2. Screw; 3. Rear cover; 4. Limit pin; 5. Insert rod; 6. Coil; 7. Spring 1; 8. Mounting block; 9. Arc block; 10. Washer; 11. Brush; 12. Mounting post; 13. Spring 2; 14. Mounting groove; 15. Limit block. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual proportions. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Please see Figures 1-5 As shown, this embodiment is a micro motor end cover with quick carbon brush replacement, including a body 1, a rear cover 3, an arc-shaped block 9 and a mounting block 8. A coil 6 is provided on one side of the body 1, and plug rods 5 are fixed on both sides of the coil 6. An arc-shaped block 9 is inserted into the plug rod 5. A mounting block 8 with an elastic mechanism is provided on the opposite side of the arc-shaped block 9. A limiting block 15 with an elastic mechanism is provided on the opposite side of the mounting block 8. A brush 11 is clamped and fixed between the limiting blocks 15. A rear cover 3 is provided on one side of the body 1.

[0031] When using this device, the brush 11 can be quickly replaced. Specifically, screw 2 needs to be unscrewed, then the back cover 3 needs to be opened, and then the arc-shaped block 9 needs to be removed manually from the top of the plug 5. Then, the limiting block 15 needs to be pried open manually to remove the brush 11 for replacement. After replacement, return it to its original position as if it were removed. This allows for quick replacement of the brush. The device only requires one screw 2 for fixing, and it is quick to install and remove, easy to operate, and highly practical.

[0032] Example 2

[0033] Please see Figures 1-5 As shown, this embodiment further includes, based on embodiment 1, a rear cover 3 fixedly connected to the body 1 by symmetrically designed screws 2. The rear cover 3 is fixed to the body 1 by symmetrically designed screws 2, which ensures the stability and sealing of the rear cover 3 installation, while facilitating disassembly and further simplifying the maintenance process.

[0034] A limiting pin 4 is inserted into the middle of the arc-shaped block 9. The surface of the limiting pin 4 has a protrusion to prevent the limiting pin 4 from rotating. The limiting pin 4 in the middle of the arc-shaped block 9 and the protrusion design on its surface effectively prevent the limiting pin 4 from rotating, enhance the stability of the structure, and avoid the failure of the brush 11 to be fixed due to loosening.

[0035] A spring 7 is fixed between one side of the arc-shaped block 9 and the mounting block 8. The arc-shaped block 9 and the mounting block 8 are connected by the spring 7, which provides elastic buffering, making the brush 11 smoother during installation and removal, and reducing mechanical wear.

[0036] The mounting block 8 has a mounting groove 14 on one side, and the brush 11 is inserted into the mounting groove 14. The brush 11 has grooves on both sides, and the limiting block 15 is inserted into the groove to fix the position of the brush 11. The brush 11 is fixed by the mounting groove 14 and the groove and the limiting block 15, which ensures the accuracy and firmness of the installation of the brush 11 and avoids displacement or falling off during use.

[0037] A second spring 13 is fixed to one side of the limiting block 15 and the mounting groove 14. The limiting block 15 and the mounting groove 14 are connected by the second spring 13, which further enhances the fixing effect of the brush 11 and provides elastic compensation to adapt to brushes 11 of different sizes, thus improving the versatility of the device.

[0038] A gasket 10 is fixed between one side surface of the body 1 and the arc-shaped block 9. Four mounting posts 12 are fixed on one side of the rear cover 3. The mounting posts 12 are inserted into the upper end of the insertion rod 5 and fit against the surface of the arc-shaped block 9 after the rear cover 3 is fixed. The design of the gasket 10 reduces the friction between the body 1 and the arc-shaped block 9 and protects the contact surface. The mounting posts 12 of the rear cover 3 cooperate with the insertion rod 5 to ensure that the position of the arc-shaped block 9 is fixed after the rear cover 3 is installed, which enhances the stability of the overall structure.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A micro motor end cover with quick replaceable carbon brush, comprising a body (1), a back cover (3), an arc block (9) and a mounting block (8), characterized in that: A coil (6) is provided on one side of the body (1), and a plug rod (5) is fixed on both sides of the coil (6). An arc-shaped block (9) is inserted inside the plug rod (5). An installation block (8) with an elastic mechanism is provided on the opposite side of the arc-shaped block (9). A limiting block (15) with an elastic mechanism is provided on the opposite side of the installation block (8). A brush (11) is clamped and fixed between the limiting blocks (15). A rear cover (3) is provided on one side of the body (1).

2. The micro motor end cover with quick replaceable carbon brush according to claim 1, characterized in that: The rear cover (3) is fixedly connected to the body (1) by symmetrically designed screws (2).

3. The micro motor end cover with quick replaceable carbon brush according to claim 1, characterized in that: A limiting pin (4) is inserted into the middle of the arc-shaped block (9). The surface of the limiting pin (4) is provided with a protrusion to prevent the limiting pin (4) from rotating.

4. The micro-motor end cover with quick-changeable carbon brush according to claim 3, characterized in that: A spring (7) is fixed between one side of the arc-shaped block (9) and the mounting block (8).

5. The micro-motor end cover with quick-changeable carbon brush according to claim 1, characterized in that: The mounting block (8) has a mounting groove (14) on one side, the brush (11) is inserted into the mounting groove (14), the brush (11) has grooves on both sides, and the limiting block (15) is inserted into the groove to fix the position of the brush (11).

6. The micro-motor end cover with quick-changeable carbon brush according to claim 1, characterized in that: The limiting block (15) and the mounting groove (14) are fixed with a spring (13) on one side.

7. The micro-motor end cover with quick-changeable carbon brush according to claim 1, characterized in that: A gasket (10) is fixed between one side surface of the body (1) and the arc block (9). Four mounting posts (12) are fixed on one side of the rear cover (3). The mounting posts (12) are inserted into the upper end of the plug rod (5) and are attached to the surface of the arc block (9) after the rear cover (3) is fixed.

Images