Brush holder for motor

Abstract

According to the technical scheme, the brush carrier for the motor is characterized in that the brush carrier comprises a mounting frame and a motor cover matched with the mounting frame, and a carbon brush is elastically arranged on the mounting frame; the mounting frame comprises a mounting ring; the mounting ring is detachably fixed on the motor cover; a bearing is fixedly arranged on the motor cover; the mounting ring and a bearing on the motor cover are coaxially arranged; the two carbon brushes are oppositely arranged on the mounting ring; the carbon brush is elastically arranged in the mounting pipe fitting; the mounting pipe fitting comprises a front-back through middle pipe; the middle pipe is a square pipe; receding grooves are formed in the two sides of the middle pipe. An elastic piece is arranged in the receding groove. The elastic piece is elastically matched with the carbon brush positioned in the middle pipe; the motor brush holder provided by the utility model has the beneficial effects of being convenient to produce and assemble, convenient and practical, and improving the product yield.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a brush holder for a motor. Background Art

[0002] The primary function of a brush holder is to apply pressure, via a spring, to the carbon brushes in sliding contact with the commutator or slip ring surface, ensuring stable current conduction between the fixed and rotating bodies. This component is crucial for equipment like motors and starters, ensuring stable current transmission and preventing malfunctions caused by poor contact. Existing brush holders use springs to provide elastic pressure. During the motor's production and installation process, when the commutator is inserted at the end of the motor rotor, the carbon brushes can easily be pushed off their fixed tracks, damaging the springs, causing product damage, and complicating installation. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a brush holder for a motor to solve the technical problems in the prior art that the product is easily damaged and inconvenient to install.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a brush holder for a motor, including a mounting frame and a motor cover cooperating with the mounting frame, wherein a carbon brush is elastically arranged on the mounting frame; the mounting frame includes a mounting ring; the mounting ring is detachably fixed on the motor cover; a bearing is fixedly arranged on the motor cover; the mounting ring and the bearing on the motor cover are arranged coaxially; two carbon brushes are arranged opposite to each other on the mounting ring; and the carbon brushes are elastically arranged in the mounting pipe.

[0005] Through the above technical solution, the carbon brush is an existing technology and is used to cooperate with the commutator on the motor rotor. The motor cover can cooperate with the motor housing to achieve a fixed effect. Generally, the motor cover and the motor housing are made of metal. The bearing is also an existing technology and is used to cooperate with the rotor and the motor cover.

[0006] Optionally, the mounting tube includes an intermediate tube that passes through from front to back; the intermediate tube is configured as a square tube; recesses are provided on both sides of the intermediate tube; elastic members are provided in the recesses; and the elastic members elastically cooperate with the carbon brushes located in the intermediate tube.

[0007] Through the above technical solution, the elastic member is less susceptible to damage than a normal spring, can increase the elastic force and reduce the elastic stroke; the setting of the intermediate tube and the give way groove forms a Chinese-shaped hole.

[0008] Optionally, the elastic member includes an intermediate plate and a buckling end and a curled end located at both ends of the intermediate plate; the curled end is curled in a ring shape; the buckling end is bent to form a hook-shaped structure; the hook-shaped structure of the buckling end is buckled with the front end of the give way groove; the curled end is against the rear end of the carbon brush; the elastic member is made of elastic material, and under the action of external force, the rear end of the carbon brush pushes the curled end to elastically deform.

[0009] Through the above technical solution, the buckling ends and the curling ends are arranged at both ends of the elastic member, and the buckling ends can be fixed on the middle tube, leaving the groove for accommodating the elastic member.

[0010] Optionally, extension plates are provided on both sides of the outer surface of the intermediate tube; the extension plates are mounted on the mounting ring by screws; and the mounting ring is mounted on the motor cover by a plurality of screws.

[0011] Optionally, the motor cover includes a circular bottom cover; the bearing and the mounting ring are arranged on the bottom cover; an annular baffle is provided on the edge of the bottom cover; two mounting notches are provided on the annular baffle; the mounting notches are opposite to the mounting pipe.

[0012] Through the above technical solution, a number of through holes can be set on the bottom cover for weight reduction and heat dissipation, the edge of the annular baffle can be used for riveting or welding with the motor housing; the installation notch is used to connect with external energy.

[0013] Optionally, the mounting ring is insulated; a rubber block is provided in the mounting notch; the rubber block is arranged in an I-shape and is snapped into the mounting notch; a spring-shaped electrical conductor is provided on the rubber block and is connected to the carbon brush; the electrical conductor passes through the rubber block and is connected to an external power supply.

[0014] Through the above technical solution, the rubber block can play an insulating role, which facilitates the connection of power lines and electrical conductors. The spring-shaped electrical conductor can be easily connected to the carbon brush, and can be deformed when the carbon brush moves back and forth.

[0015] Beneficial effects of the present application: Compared with the prior art, the brush holder for the motor provided by the present application has the beneficial effects of being convenient for production and assembly, being convenient and practical, and improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in this application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0018] Figure 2 A partial cross-sectional view of an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the rubber block structure of an embodiment of the present application.

[0020] Among them, the figure marks in the figure are: 1, carbon brush; 2, mounting ring; 3, bearing; 4, intermediate tube; 5, clearance groove; 6, intermediate plate; 7, snap-fit ​​end; 8, curled end; 9, extension plate; 10, bottom cover; 11, annular baffle; 12, mounting notch; 13, rubber block; 14, electrical wire. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in conjunction with specific embodiments.

[0022] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this application, "several" means two or more, unless otherwise specifically defined.

[0025] like Figures 1 to 3As shown, the purpose of the embodiment of the present application is to provide a brush holder for a motor to solve the technical problems of the prior art that the product is easily damaged and inconvenient to install. To achieve the above purpose, the technical solution adopted by the present application is as follows: providing a brush holder for a motor, comprising a mounting frame and a motor cover cooperating with the mounting frame, wherein a carbon brush 1 is elastically arranged on the mounting frame; the mounting frame includes a mounting ring 2; the mounting ring 2 is detachably fixed to the motor cover; a bearing 3 is fixedly arranged on the motor cover; the mounting ring 2 is arranged coaxially with the bearing 3 on the motor cover; two carbon brushes 1 are arranged opposite each other on the mounting ring 2; and the carbon brush 1 is elastically arranged in the mounting pipe.

[0026] Through the above technical solution, the carbon brush 1 is an existing technology and is used to cooperate with the commutator on the motor rotor. The motor cover can cooperate with the motor housing to achieve a fixed effect. Generally, the motor cover and the motor housing are made of metal. The bearing 3 is also an existing technology and is used to cooperate with the rotor and the motor cover.

[0027] Optionally, the mounting pipe includes an intermediate tube 4 that passes through from front to back; the intermediate tube 4 is configured as a square tube; recesses 5 are provided on both sides of the intermediate tube 4; elastic members are provided in the recesses 5; and the elastic members elastically cooperate with the carbon brush 1 located in the intermediate tube 4.

[0028] Through the above technical solution, the elastic member is less susceptible to damage than a normal spring, can increase the elastic force and reduce the elastic stroke; the setting of the intermediate tube 4 and the yield groove 5 forms a Chinese-shaped hole.

[0029] Optionally, the elastic member includes an intermediate plate 6 and a buckling end 7 and a curled end 8 located at both ends of the intermediate plate 6; the curled end 8 is arranged to be curled in a ring shape; the buckling end 7 is bent to form a hook structure; the hook structure of the buckling end 7 is buckled with the front end of the give way groove 5; the curled end 8 is against the rear end of the carbon brush 1; the elastic member is made of elastic material, and under the action of external force, the rear end of the carbon brush 1 pushes the curled end 8 to elastically deform.

[0030] Through the above technical solution, the buckling ends 7 and the curling ends 8 are arranged at both ends of the elastic member, and the buckling ends 7 can be fixed on the middle tube 4, leaving the groove 5 for accommodating the elastic member.

[0031] Optionally, extension plates 9 are provided on both sides of the outer surface of the intermediate tube 4; the extension plates 9 are mounted on the mounting ring 2 by screws; and the mounting ring 2 is mounted on the motor cover by a plurality of screws.

[0032] Optionally, the motor cover includes a circular bottom cover 10; the bearing 3 and the mounting ring 2 are arranged on the bottom cover 10; an annular baffle 11 is provided on the edge of the bottom cover 10; two mounting notches 12 are provided on the annular baffle 11; the mounting notches 12 are opposite to the mounting pipe.

[0033] Through the above technical solution, a number of through holes can be set on the bottom cover 10 for weight reduction and heat dissipation, the edge of the annular baffle 11 can be used for riveting or welding with the motor housing; the installation notch 12 is used to connect with external energy.

[0034] Optionally, the mounting ring 2 is insulated; a rubber block 13 is provided in the mounting notch 12; the rubber block 13 is arranged in an I-shape and is snapped into the mounting notch 12; a spring-shaped electrical conductor 14 is provided on the rubber block 13 and is connected to the carbon brush 1; the electrical conductor 14 passes through the rubber block 13 and is connected to an external power supply.

[0035] Through the above technical solution, the rubber block 13 can play an insulating role, facilitating the connection of the power line and the electric conductor 14. The spring-shaped electric conductor 14 can be conveniently connected to the carbon brush 1 and can be deformed when the carbon brush 1 moves forward and backward.

[0036] Beneficial effects of the present application: Compared with the prior art, the brush holder for the motor provided by the present application has the beneficial effects of being convenient for production and assembly, being convenient and practical, and improving the product yield.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of simplicity.

[0038] This application is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A brush holder for a motor, comprising a mounting frame and a motor cover matched with the mounting frame, characterized in that: A carbon brush (1) is elastically arranged on the mounting frame; the mounting frame includes a mounting ring (2); the mounting ring (2) is detachably fixed to the motor cover; a bearing (3) is fixedly arranged on the motor cover; the mounting ring (2) and the bearing (3) on the motor cover are coaxially arranged; two carbon brushes (1) are relatively arranged on the mounting ring (2); and the carbon brushes (1) are elastically arranged in the mounting pipe.

2. The motor brush holder according to claim 1, characterized in that: The mounting pipe comprises an intermediate pipe (4) that passes through from front to back; the intermediate pipe (4) is configured as a square pipe; both sides of the intermediate pipe (4) are provided with clearance grooves (5); an elastic member is provided in the clearance groove (5); the elastic member elastically cooperates with the carbon brush (1) located in the intermediate pipe (4).

3. The motor brush holder according to claim 2, characterized in that: The elastic member comprises an intermediate plate (6) and a buckling end (7) and a curling end (8) located at both ends of the intermediate plate (6); the curling end (8) is arranged in an annular curling manner; the buckling end (7) is bent to form a hook-shaped structure; the hook-shaped structure of the buckling end (7) is buckled with the front end of the clearance groove (5); the curling end (8) is pressed against the rear end of the carbon brush (1); the elastic member is made of elastic material, and under the action of an external force, the rear end of the carbon brush (1) pushes the curling end (8) to elastically deform.

4. The motor brush holder according to claim 2, characterized in that: Extension plates (9) are provided on both sides of the outer surface of the intermediate tube (4); the extension plates (9) are mounted on the mounting ring (2) by screws; and the mounting ring (2) is mounted on the motor cover by a plurality of screws.

5. The brush holder for a motor according to any one of claims 1 to 4, characterized in that: The motor cover comprises a circular bottom cover (10); the bearing (3) and the mounting ring (2) are arranged on the bottom cover (10); an annular baffle (11) is provided on the edge of the bottom cover (10); two mounting notches (12) are provided on the annular baffle (11); the mounting notches (12) are opposite to the mounting pipe.

6. The motor brush holder according to claim 5, characterized in that: The mounting ring (2) is insulated; a rubber block (13) is provided in the mounting notch (12); the rubber block (13) is arranged in an I-shape and is snap-fitted into the mounting notch (12); a spring-shaped electric conductor (14) is provided on the rubber block (13) and is connected to the carbon brush (1); the electric conductor (14) passes through the rubber block (13) and is connected to an external power supply.

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