Motor with heat dissipation fireproof cover

Abstract

The utility model relates to a motor with a heat radiation fireproof cover, comprising: a motor body comprising a stator assembly, a rotor assembly, a commutator, a carbon brush assembly, a support and a bearing, the rotor assembly penetrating through the stator assembly, and the rotor assembly being rotatably connected to the stator assembly; one end of the commutator is connected to the rotor assembly, and the other end of the commutator is connected to the support through a bearing; the carbon brush assembly is fixedly connected with the support. The heat dissipation fireproof assembly covers the outer side of the commutator, the inner wall of the support and the shell of the stator assembly jointly form an accommodating space in a surrounding mode, and the heat dissipation fireproof assembly, the carbon brush assembly and the commutator are all arranged in the accommodating space. By adopting the structure, sparks are prevented from splashing during operation of the motor, safe heat dissipation of the commutator and the carbon brush assembly is guaranteed, and the service life of a product is guaranteed while the motor can work safely.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a motor with a heat dissipation and fire prevention cover. Background Art

[0002] When the equipment is running, electric sparks and high temperatures will be generated by the commutator and carbon brushes in the motor. The splashing of electric sparks everywhere will cause fires. In order to eliminate potential fire hazards and protect the safe operation of the commutator and carbon brushes at the same time, in the prior art, a fire prevention cover is usually installed at the position of the commutator and carbon brushes to prevent the generated sparks from splashing everywhere. However, after installing the fire prevention cover, the space is airtight, resulting in a sharp rise in the internal temperature, and the heat cannot be effectively dissipated, resulting in a high temperature of the carbon brushes and a faster wear rate, thus shortening the service life of the commutator and carbon brushes.

[0003] Therefore, there is an urgent need to provide a motor with a heat dissipation and fire prevention cover to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies and defects of the prior art, and provide a motor with a heat dissipation and fire prevention cover, which can prevent sparks from splashing everywhere when the motor is running, ensure the safe heat dissipation of the commutator and carbon brush assembly, and ensure the service life of the product while enabling the motor to work safely.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A motor with a heat dissipation and fire prevention cover, characterized in that it includes:

[0007] A motor body, including a stator assembly, a rotor assembly, a commutator, a carbon brush assembly, a bracket and a bearing. The rotor assembly is disposed through the stator assembly, and the rotor assembly is rotatably connected to the stator assembly; one end of the commutator is connected to the rotor assembly, and the other end is connected to the bracket through a bearing. The bracket is connected to the stator assembly by bolts; the carbon brush assembly is fixedly connected to the bracket;

[0008] A heat dissipation and fire prevention component, which is disposed outside the commutator. An accommodation space is jointly formed by the inner wall of the bracket and the outer shell of the stator assembly. The heat dissipation and fire prevention component, the carbon brush assembly and the commutator are all disposed in the accommodation space.

[0009] Optionally, the heat dissipation and fire prevention component is a heat dissipation and fire prevention cover, which is arranged in a cylindrical shape, and a plurality of groups of heat dissipation holes are evenly arranged on the outer side of the heat dissipation and fire prevention cover.

[0010] Optionally, the heat dissipation and fire prevention cover includes a fixing part and a heat dissipation part. The fixing part is disposed outside the heat dissipation part, and a plurality of groups of the heat dissipation holes are evenly distributed on the heat dissipation part. The fixing part is used for fixedly connecting with the bracket.

[0011] Optionally, a receiving groove is provided on the outer side of the heat dissipation part, and the receiving groove is used for the carbon brush assembly to be inserted and connected.

[0012] Optionally, the shape of the heat dissipation holes is round or strip-shaped.

[0013] Optionally, the material of the heat dissipation and fire prevention cover is fiberglass plastic.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the motor with a heat dissipation and fire prevention cover includes a motor body and a heat dissipation and fire prevention component. The motor body includes a stator assembly, a rotor assembly, a commutator, a carbon brush assembly, a bracket and a bearing. The rotor assembly is disposed through the stator assembly, and the rotor assembly is rotatably connected to the stator assembly; one end of the commutator is connected to the rotor assembly, and the other end is connected to the bracket through the bearing. The commutator changes the magnetic field direction so that the rotor assembly can rotate smoothly. The commutator is connected and fixed to the bracket through the bearing, and the bracket is connected to the outer shell of the stator assembly through bolts; the carbon brush assembly is fixed to the bracket, and the heat dissipation and fire prevention component covers the outside of the commutator. An accommodation space is formed by surrounding the inner wall of the bracket and the outer shell of the stator assembly. The heat dissipation and fire prevention component, the carbon brush assembly and the commutator are all disposed in the accommodation space. By covering the outside of the commutator with the heat dissipation and fire prevention component, the generated sparks will not splash everywhere and cause a fire. At the same time, the heat dissipation and fire prevention component can dissipate heat effectively; through the arrangement of the above components, it is possible to prevent sparks from splashing when the motor operates, ensure the safe heat dissipation of the commutator and the carbon brush assembly, and enable the motor to work safely while ensuring the service life of the product. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the utility model.

[0017] Figure 2 It is an exploded schematic diagram of the utility model.

[0018] Figure 3 It is a schematic structural diagram of the heat dissipation and fire prevention cover in the utility model.

[0019] Among them, the above-mentioned drawings include the following reference numerals:

[0020] 11. Stator assembly, 12. Rotor assembly, 13. Commutator, 14. Carbon brush assembly, 15. Bracket, 16. Bearing, 2. Heat dissipation and fire prevention cover, 21. Fixed part, 22. Heat dissipation part, 23. Receiving groove, 24. Heat dissipation holes. Detailed Embodiment

[0021] The present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present utility model are not limited thereto.

[0022] The technical solution of the present utility model provides a motor with a heat dissipation and fire prevention cover.

[0023] Referring to Figures 1 to 3 , in this embodiment, it includes:

[0024] A motor body, including a stator assembly 11, a rotor assembly 12, a commutator 13, a carbon brush assembly 14, a bracket 15 and a bearing 16. The rotor assembly 12 is disposed through the stator assembly 11, and the rotor assembly 12 is rotatably connected to the stator assembly 11; one end of the commutator 13 is connected to the rotor assembly 12, and the other end is connected to the bracket 15 through the bearing 16, and the bracket 15 is connected to the stator assembly 11 by bolts; the carbon brush assembly 14 is fixedly connected to the bracket 15;

[0025] A heat dissipation and fire prevention component, which covers the outside of the commutator 13. The inner wall of the bracket 15 and the outer shell of the stator assembly 11 jointly enclose a containing space, and the heat dissipation and fire prevention component, the carbon brush assembly 14 and the commutator 13 are all disposed in the containing space.

[0026] Optionally, in this embodiment, the motor with the heat dissipation and fire prevention cover 2 includes a motor body and a heat dissipation and fire prevention component. The motor body includes a stator assembly 11, a rotor assembly 12, a commutator 13, a carbon brush assembly 14, a bracket 15, and a bearing 16. The rotor assembly 12 is disposed through the stator assembly 11, and the rotor assembly 12 is rotatably connected to the stator assembly 11. That is, the stator assembly 11 is a fixed part 21 of the motor. The stator assembly 11 is used to generate a magnetic field and interact electromagnetically with the rotor assembly 12 to drive the rotor assembly 12 to rotate. One end of the commutator 13 is connected to the rotor assembly 12, and the other end is connected to the bracket 15 through the bearing 16. The commutator 13 enables the rotor assembly 12 to rotate smoothly by changing the direction of the magnetic field. The rotor assembly 12 is used to convert electrical energy into mechanical energy. The commutator 13 is connected and fixed to the bracket 15 through the bearing 16, and the bracket 15 is connected to the outer shell of the stator assembly 11 by bolts. The carbon brush assembly 14 is fixed to the bracket 15, and the carbon brush assembly 14 is used to guide current into the rotor assembly 12 and change the direction of the current. The heat dissipation and fire prevention component covers the outside of the commutator 13. An accommodation space is formed by the inner wall of the bracket 15 and the outer shell of the stator assembly 11 together. The heat dissipation and fire prevention component, the carbon brush assembly 14, and the commutator 13 are all disposed in the accommodation space. Since both the commutator 13 and the carbon brush assembly 14 are high-voltage power transmission devices and generate sparks due to friction during operation, there are certain safety hazards. That is, by covering the outside of the commutator 13 with the heat dissipation and fire prevention component, the generated sparks will not splash everywhere and cause a fire. At the same time, the heat dissipation and fire prevention component can dissipate heat effectively to prevent the temperature from being too high due to the enclosed space, which may lead to a short product life. Through the setting of the above components, it can prevent sparks from splashing during the operation of the motor and ensure the safe heat dissipation of the commutator 13 and the carbon brush assembly 14, so that the motor can work safely while ensuring the service life of the motor.

[0027] In this embodiment, the heat dissipation and fire prevention component is the heat dissipation and fire prevention cover 2, and the heat dissipation and fire prevention cover 2 is arranged in a cylindrical shape. The heat dissipation and fire prevention cover 2 arranged in a cylindrical shape can better cover the commutator 13 to prevent the generated sparks from splashing out through the gaps. A plurality of groups of heat dissipation holes 24 are evenly arranged on the outside of the heat dissipation and fire prevention cover 2. The aperture of the heat dissipation holes 24 is set to be small to achieve heat dissipation while preventing sparks from splashing out through the heat dissipation holes 24. Further, in this embodiment, the shape of the heat dissipation holes 24 is round or strip-shaped. The round heat dissipation holes 24 are convenient for processing, and the strip-shaped heat dissipation holes 24 help to guide the air flow and can effectively reduce the accumulation of dust while dissipating heat. In other embodiments, the shape of the heat dissipation holes 24 can also be mesh-shaped or rectangular, which is not limited here.

[0028] In this embodiment, the heat dissipation and fire prevention cover 2 includes a fixing part 21 and a heat dissipation part 22. The fixing part 21 is arranged outside the heat dissipation part 22. That is, the fixing part 21 is connected to the bracket 15 by bolts to fix the heat dissipation and fire prevention cover 2. A plurality of groups of heat dissipation holes 24 are evenly distributed on the heat dissipation part 22 to dissipate heat from the commutator 13 and the carbon brush assembly 14. Further, in this embodiment, a receiving groove 23 is provided outside the heat dissipation part 22, and the receiving groove 23 is used for the carbon brush assembly 14 to be inserted and connected, so that the carbon brush assembly 14 and the commutator 13 interact with each other.

[0029] In this embodiment, the material of the heat dissipation and fire prevention cover 2 is fiberglass plastic. Compared with metal materials, fiberglass plastic has a lower cost, has a certain fire prevention performance, is light in weight, and is convenient for installation and maintenance. In other embodiments, the material of the heat dissipation and fire prevention cover 2 can also be made of metal materials or magnesium calcium silicate boards, which can also have the effects of fire prevention and heat dissipation, and are not limited herein.

[0030] The above-described embodiments only express the implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A motor with a heat dissipation fireproof cover, characterized in that: include: The motor body includes a stator assembly, a rotor assembly, a commutator, a carbon brush assembly, a bracket and a bearing. The rotor assembly is inserted into the stator assembly and is rotatably connected to the stator assembly. One end of the commutator is connected to the rotor assembly, and the other end is connected to the bracket through a bearing. The bracket is connected to the stator assembly through bolts. The carbon brush assembly is fixedly connected to the bracket. The heat dissipation and fire prevention component is covered on the outside of the commutator. The inner wall of the bracket and the outer shell of the stator assembly are together covered to form an accommodating space. The heat dissipation and fire prevention component, the carbon brush component and the commutator are all arranged in the accommodating space.

2. A motor with a heat dissipation and fireproof cover according to claim 1, characterized in that: The heat dissipation and fire prevention component is a heat dissipation and fire prevention cover, which is arranged in a cylindrical shape, and a plurality of heat dissipation holes are evenly arranged on the outer side of the heat dissipation and fire prevention cover.

3. A motor with a heat dissipation and fireproof cover according to claim 2, characterized in that: The heat dissipation fireproof cover comprises a fixing part and a heat dissipation part, wherein the fixing part is arranged outside the heat dissipation part, a plurality of groups of heat dissipation holes are evenly distributed on the heat dissipation part, and the fixing part is used for fixing and connecting with the bracket.

4. A motor with a heat dissipation and fireproof cover according to claim 3, characterized in that: An accommodating groove is arranged on the outer side of the heat dissipation part, and the accommodating groove is used for the carbon brush assembly to be inserted and connected.

5. A motor with a heat dissipation and fireproof cover according to claim 4, characterized in that: The heat dissipation holes are in the shape of circular holes or strips.

6. A motor with a heat dissipation and fireproof cover according to claim 2, characterized in that: The material of the heat dissipation fireproof cover is glass fiber plastic.

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