A motor with high stability

Abstract

The utility model discloses a higher stability motor, including motor casing, the inside of motor casing is provided with carbon brush holder, the inside of carbon brush holder is provided with carbon brush box, the inside of carbon brush box is provided with carbon brush body, the both sides of carbon brush holder all are provided with support connecting piece, the support connecting piece is connected between carbon brush box and carbon brush holder through, the support connecting piece with carbon brush box is jointed, and this motor passes through the dual fixed structure of primary limit and secondary locking, has solved the stability problem of carbon brush when the vibration is high, cooperates the reinforcement of integral structure simultaneously to provide a motor product of stable operation, high reliability, longer life.

Description

Technical Field

[0001] This utility model belongs to the field of motor equipment technology, and specifically relates to a motor with high stability. Background Technology

[0002] There are many types of motors, which can be classified by structure as follows: mainly brushed motors, brushless motors, and linear motors. Brushed motors generally consist of a stator, a rotor, and carbon brushes. The carbon brushes are mainly installed on the stationary parts of the motor, specifically in the brush holder inside the end cover or motor housing. Under the pressure of a spring, the front end of the brush maintains a tight sliding contact with the commutator on the rotating part. As the rotor rotates, the commutator continuously switches the plates in contact with the carbon brushes, thereby automatically changing the direction of the current in the rotor windings and ensuring that the rotor rotates continuously in one direction.

[0003] Currently, during carbon brush installation, the brush holder is typically fixed to the brush carrier, and the carbon brushes are inserted into the brush holder. However, the brush carrier's structure alone is used to prevent the brushes from shifting axially along the brush carrier (commutator's radial direction). When high-power motors experience vibration or impact during operation, the long-term vibration or impact can degrade the stability of the brush holder and brush carrier. The brush holder may shift along the circumference of the commutator, leading to changes in the commutation angle and increased sparking, thus reducing the motor's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a motor with higher stability. Based on the original structure of the carbon brush box and carbon brush holder, the carbon brush box is fixed to the carbon brush holder with screws, which avoids the possibility of the carbon brush box shifting along the circumference of the commutator on the carbon brush holder, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A highly stable motor includes a motor housing, a carbon brush holder inside the motor housing, a carbon brush box inside the carbon brush holder, a carbon brush body inside the carbon brush box, and support connectors on both sides of the carbon brush holder. The carbon brush box and the carbon brush holder are connected by the support connectors, and the support connectors are engaged with the carbon brush box.

[0007] By adopting the above technical solution: during installation, the carbon brush body is inserted into the carbon brush box, and then the carbon brush box is inserted into the carbon brush holder. The position of the carbon brush box is limited by the support connector, and the support connector has a high degree of fit with the carbon brush box, which can improve the stability of the connection between the carbon brush box and the carbon brush holder.

[0008] Preferably, the support connector has limiting grooves on both sides, and the carbon brush box body has limiting protrusions on both sides, the limiting protrusions engaging with the limiting grooves.

[0009] By adopting the above technical solution, the stability of the connection between the support connector and the carbon brush box can be further improved by utilizing the cooperation between the limiting protrusion and the limiting groove.

[0010] Preferably, mounting holes are provided on both sides of the carbon brush box, and threaded holes are provided on the surface of the carbon brush holder. The mounting holes and threaded holes are connected by bolts.

[0011] By adopting the above technical solution, the stability of the connection between the carbon brush box and the carbon brush holder is improved by using bolts to connect the mounting holes and threaded holes together.

[0012] Preferably, the carbon brush holder has a through hole in the middle, and a support frame is provided outside the through hole.

[0013] By adopting the above technical solution, the support frame can further improve the structural strength of the carbon brush holder and enhance its performance during use.

[0014] Preferably, a front cover is provided on one side of the motor housing and a rear cover is provided on the other side, and a rotor and a stator are provided inside the motor housing.

[0015] By adopting the above technical solution, the front and rear covers are installed on both sides of the motor housing, and the rotor and stator are installed in the middle to ensure its stability and normal use.

[0016] Preferably, the stator includes windings and an iron core, the iron core being installed inside the motor housing, and the windings being mounted on the surface of the iron core.

[0017] By adopting the above technical solution, the windings and the iron core together form the stator, which facilitates cooperation with the rotor for operation.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] By using a support connector as the intermediate connector between the brush box and the brush holder, an adaptive snap-fit ​​connection is achieved. This not only simplifies the installation process but also suppresses loosening and vibration of the brush box during operation by improving the fit. A snap-fit ​​structure with limiting protrusions and limiting grooves is added between the support connector and the brush box, and a bolt fastening connection is added between the brush box and the brush holder. These two elements form a double limiting and fixing mechanism, which greatly enhances the stability and impact resistance of the connection and prevents the brush box from shifting along the circumference of the commutator on the brush holder. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the carbon brush holder of this utility model;

[0023] Figure 4 This is a schematic diagram of the carbon brush box of this utility model;

[0024] Figure 5 This is a schematic diagram showing the physical connection between the carbon brush holder and the carbon brush box of this utility model.

[0025] In the diagram: 1. Motor housing; 2. Carbon brush holder; 21. Through hole; 22. Support frame; 23. Threaded hole; 3. Carbon brush box; 31. Limiting protrusion; 32. Mounting hole; 4. Carbon brush body; 5. Support connector; 51. Limiting groove; 7. Front cover; 8. Rear cover; 9. Rotor; 10. Stator; 11. Winding; 12. Iron core. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The specific embodiments described herein are merely used to explain this utility model and are not intended to limit this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example:

[0028] like Figures 1-4 As shown, this utility model provides a highly stable motor, including a motor housing 1. A carbon brush holder 2 is provided inside the motor housing 1, and a carbon brush box 3 is installed inside the carbon brush holder 2. A carbon brush body 4 is disposed inside the carbon brush box 3. The carbon brush box 3 and the carbon brush holder 2 are connected by a support connector 5. Support connectors 5 are provided at both ends of the carbon brush holder 2, and the support connectors 5 are engaged with the carbon brush box 3. During installation, the carbon brush body 4 is first inserted into the carbon brush box 3, and then the carbon brush box 3 is inserted into the carbon brush holder 2. The position of the carbon brush box 3 is limited by the support connector 5. The support connector 5 has a high degree of fit with the carbon brush box 3 and plays a good limiting role for the carbon brush box 3, thereby enhancing the connection stability between the carbon brush box 3 and the carbon brush holder 2.

[0029] The support connector 5 has limiting grooves 51 on both sides, and the carbon brush box 3 has limiting protrusions 31 on both sides. The limiting protrusions 31 and the limiting grooves 51 are engaged to further improve the connection stability between the support connector 5 and the carbon brush box 3.

[0030] The carbon brush box 3 is also provided with mounting holes 32 on both sides, and threaded holes 23 are opened at corresponding positions on the surface of the carbon brush holder 2. The mounting holes 32 and threaded holes 23 are fastened by bolts (not shown in the figure) to further enhance the connection reliability between the carbon brush box 3 and the carbon brush holder 2.

[0031] A through hole 21 is formed in the middle of the carbon brush holder 2, and a support frame 22 is provided outside the through hole 21 to improve the structural strength and stability of the carbon brush holder 2. Figure 5 This embodiment only provides one connection between the carbon brush holder 2 and the carbon brush box 3. The specific shapes of the carbon brush holder 2 and the carbon brush box 3 can be adaptively adjusted according to the specific space and shape inside the motor to meet the needs of different customers.

[0032] The motor housing 1 has a front cover 7 on one side and a rear cover 8 on the other side. The rotor 9 and stator 10 are installed inside. The front cover 7 and the rear cover 8 together encapsulate the motor housing 1 to ensure the stable operation of the internal structure.

[0033] The stator 10 includes a winding 11 and an iron core 12. The iron core 12 is fixed to the inner wall of the motor housing 1, and the winding 11 is wound on the surface of the iron core 12 to form a stator assembly, which works with the rotor 9 to enable the motor to work normally.

[0034] In summary, this device improves the stability of the carbon brush system through a secondary limiting and fixing method. Combined with the overall structural reinforcement, it features stable operation, high reliability, and longer service life.

[0035] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor with high stability, characterized in that: The device includes a motor housing (1), inside which a carbon brush holder (2) is provided, inside which a carbon brush box (3) is provided, inside which a carbon brush body (4) is provided, and on both sides of the carbon brush holder (2) are provided supporting connectors (5). The carbon brush box (3) and the carbon brush holder (2) are connected by the supporting connectors (5), and the supporting connectors (5) are engaged with the carbon brush box (3). Limited openings are provided on both sides of the supporting connectors (5). The carbon brush holder (3) has a positioning groove (51) and two sides of the body. The positioning protrusions (31) are engaged with the positioning groove (51). The carbon brush holder (3) has mounting holes (32) on both sides. The carbon brush holder (2) has a threaded hole (23) on its surface. The mounting hole (32) and the threaded hole (23) are connected by bolts. The carbon brush holder (2) has a through hole (21) in the middle. A support frame (22) is provided outside the through hole (21).

2. The electric motor with high stability according to claim 1, characterized in that: The motor housing (1) has a front cover (7) on one side and a rear cover (8) on the other side. The motor housing (1) contains a rotor (9) and a stator (10).

3. The electric machine of claim 2, wherein: The stator (10) includes a winding (11) and an iron core (12), the iron core (12) being installed inside the motor housing (1), and the winding (11) being mounted on the surface of the iron core (12).

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