Motor brush cover with conducting strip self-locking structure

Abstract

The utility model relates to the technical field of motors, in particular to a motor brush cover with a conducting strip self-locking structure, which comprises a brush holder, a first conducting strip and a second conducting strip. A first mounting groove and a second mounting groove are formed in the brush frame, and the first mounting groove and the second mounting groove are arranged oppositely; the first conducting strip is arranged in the first mounting groove, and the second conducting strip is arranged in the second mounting groove. The first conducting strip is limited in the first mounting groove through the first locking unit, and the second conducting strip is limited in the second mounting groove through the second locking unit. A first limiting step is arranged at the rear end of the first conducting strip and is matched with the rear end of the first mounting groove; and a second limiting step is arranged at the rear end of the second conducting strip and is matched with the rear end of the second mounting groove. According to the motor brush cover with the conducting strip self-locking structure, injection molding and positioning column hot melting fixing procedures do not need to be adopted in the assembling process, the installation procedure is relatively simple, and the assembling efficiency of the conducting strip is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor brush cover with a conductive sheet self-locking structure. Background Art

[0002] The conductive sheet is an important part installed on the main body of the motor brush holder. The conductive sheet is used for electrical connection. In the prior art, the conventional installation method of the conductive sheet is to use injection molding, that is, the conductive sheet is embedded in the corresponding installation groove on the brush holder, and then injection molding is performed, and then the positioning column is used to fix it with hot melt. The traditional installation method of the conductive sheet uses injection molding and positioning column hot melt fixing processes. The installation process is relatively complicated, resulting in low assembly efficiency of the conductive sheet. Utility Model Content

[0003] The utility model aims at the technical problem that the traditional conductive sheet installation method existing in the prior art adopts injection molding and positioning column hot-melt fixing process, and its installation process is relatively complicated, resulting in low assembly efficiency of the conductive sheet, and provides a motor brush cover with a conductive sheet self-locking structure.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A motor brush cover with a conductive sheet self-locking structure, comprising: a brush holder, a first conductive sheet and a second conductive sheet;

[0006] The brush holder is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged opposite to each other; the first conductive sheet is arranged in the first mounting groove, and the second conductive sheet is arranged in the second mounting groove;

[0007] The first conductive sheet is limited in the first mounting groove by a first locking unit, and the second conductive sheet is limited in the second mounting groove by a second locking unit;

[0008] A first limiting step is provided at the rear end of the first conductive sheet, and the first limiting step matches with the rear end of the first mounting slot; a second limiting step is provided at the rear end of the second conductive sheet, and the second limiting step matches with the rear end of the second mounting slot.

[0009] Further: the first locking unit includes: a first locking spring, a first return spring and a first locking structure;

[0010] A first groove is provided on the first conductive sheet; one end of the first locking spring is connected to the first groove; the first return spring is installed in the first groove, one end of the first return spring is connected to the bottom of the first groove, and the other end of the first return spring is connected to the first locking spring; the first locking structure is provided on the inner side of the first mounting groove, and the first locking spring and the first locking structure cooperate and lock and limit.

[0011] Further: the second locking unit includes: a second locking spring, a second return spring and a second locking structure;

[0012] A second groove is provided on the second conductive sheet; one end of the second locking spring is connected to the second groove; the second return spring is installed in the second groove, one end of the second return spring is connected to the bottom of the second groove, and the other end of the second return spring is connected to the second locking spring; the second locking structure is provided on the inner side of the second mounting groove, and the second locking spring and the second locking structure cooperate and lock and limit.

[0013] Further: the first locking unit includes: a third locking spring and a third locking structure;

[0014] The third locking structure is arranged on the inner side of the first mounting groove, one end of the third locking spring is connected to the first conductive sheet, and the third locking spring is arranged obliquely; the third locking spring and the third locking structure cooperate and lock and limit; the third locking spring is made of a material with the ability to deform and recover after deformation.

[0015] Further: the second locking unit includes: a fourth locking spring and a fourth locking structure;

[0016] The fourth locking structure is arranged on the inner side of the second mounting groove, one end of the fourth locking spring is connected to the second conductive sheet, and the fourth locking spring is arranged obliquely; the fourth locking spring and the fourth locking structure cooperate and lock and limit; the fourth locking spring is made of a material with the ability to deform and recover after deformation.

[0017] Furthermore: the third locking spring piece and the fourth locking spring piece are spring pieces made of plastic material.

[0018] The motor brush cover with a conductive sheet self-locking structure provided by the utility model has at least the following beneficial effects or advantages:

[0019] The utility model provides a motor brush cover with a conductive sheet self-locking structure, and a first mounting groove and a second mounting groove are provided on the brush frame, and the first mounting groove and the second mounting groove are arranged opposite to each other. The first conductive sheet is arranged in the first mounting groove, and the second conductive sheet is arranged in the second mounting groove. The first conductive sheet is limited in the first mounting groove by the first locking unit, and the second conductive sheet is limited in the second mounting groove by the second locking unit. In the motor brush cover with a conductive sheet self-locking structure, since the first conductive sheet is limited in the first mounting groove by the first locking unit, and the second conductive sheet is limited in the second mounting groove by the second locking unit, the assembly process does not need to adopt injection molding and positioning column hot melt fixing processes, and its installation process is relatively simple, thereby improving the assembly efficiency of the conductive sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a motor brush cover structure with a conductive sheet self-locking structure provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of a partial structure of a brush holder provided by an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of a partial structure of a first conductive sheet provided in an embodiment of the utility model;

[0023] Figure 4 A schematic structural diagram of a first conductive sheet and a second conductive sheet provided in an embodiment of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-brush holder, 2-first conductive sheet, 3-second conductive sheet, 4-first locking spring, 5-first return spring, 6-first groove, 7-first mounting groove, 8-first locking structure, 9-second locking structure, 10-second mounting groove, 11-first limiting step, 12-second limiting step, 13-third locking spring, 14-fourth locking spring. DETAILED DESCRIPTION

[0026] The utility model aims at the technical problem that the traditional conductive sheet installation method existing in the prior art adopts injection molding and positioning column hot-melt fixing process, and its installation process is relatively complicated, resulting in low assembly efficiency of the conductive sheet, and provides a motor brush cover with a conductive sheet self-locking structure.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model embodiment provides a motor brush cover with a conductive sheet self-locking structure, such as Figure 1 and Figure 2 , including: a brush holder 1, a first conductive sheet 2 and a second conductive sheet 3. The brush holder 1 is provided with a first mounting groove 7 and a second mounting groove 10, and the first mounting groove 7 and the second mounting groove 10 are arranged opposite to each other; the first conductive sheet 2 is arranged in the first mounting groove 7, and the second conductive sheet 3 is arranged in the second mounting groove 10. The first conductive sheet 2 is limited in the first mounting groove 7 by a first locking unit, and the first locking unit is used to limit the backward displacement of the first conductive sheet 2 after it is assembled in place. The second conductive sheet 3 is limited in the second mounting groove 10 by a second locking unit, and the second locking unit is used to limit the backward displacement of the second conductive sheet 3 after it is assembled in place. The rear end of the first conductive sheet 2 is provided with a first limiting step 11, and the first limiting step 11 cooperates with the rear end of the first mounting groove 7, and the first limiting step 11 is used to limit the forward displacement of the first conductive sheet 2 after it is assembled in place. The rear end of the second conductive sheet 3 is provided with a second limiting step 12, and the second limiting step 12 cooperates with the rear end of the second mounting groove 10, and the second limiting step 12 is used to limit the forward displacement of the second conductive sheet 3 after it is assembled in place.

[0029] In a preferred embodiment provided by the present utility model, Figure 1-Figure 3 , the first locking unit includes: a first locking spring 4, a first return spring 5 and a first locking structure 8. A first groove 6 is provided on the first conductive sheet 2; one end of the first locking spring 4 is connected to the first groove 6; the first return spring 5 is installed in the first groove 6, one end of the first return spring 5 is connected to the bottom of the first groove 6, and the other end of the first return spring 5 is connected to the first locking spring 4; a first locking structure 8 is provided inside the first installation groove 7, and the first locking spring 4 and the first locking structure 8 cooperate and lock and limit. Under normal conditions, the first return spring 5 pushes the first locking spring 4 outward, and the first locking spring 4 is in an inclined state; the first locking spring 4 compresses the first return spring 5 to reduce the angle between the first locking spring 4 and the first conductive sheet 2, so that the first locking spring 4 can smoothly pass through the first locking structure 8, and then the first locking spring 4 is immediately reset to the normal state under the action of the first return spring 5.

[0030] The second locking unit includes: a second locking spring, a second return spring and a second locking structure 9. A second groove is provided on the second conductive sheet 3; one end of the second locking spring is connected to the second groove; the second return spring is installed in the second groove, one end of the second return spring is connected to the bottom of the second groove, and the other end of the second return spring is connected to the second locking spring. A second locking structure 9 is provided inside the second mounting groove 10, and the second locking spring and the second locking structure 9 cooperate and lock the position. Under normal conditions, the second return spring pushes the second locking spring outward, and the second locking spring is in an inclined state; the second locking spring compresses the second return spring to reduce the angle between the second locking spring and the second conductive sheet 3, so that the second locking spring passes through the second locking structure 9 smoothly, and then the second locking spring is immediately reset to the normal state under the action of the second return spring.

[0031] In another preferred embodiment provided by the present utility model, Figure 1 , Figure 2 and Figure 4 , and further simplify the structures of the first locking unit and the second locking unit. Specifically, the first locking unit includes: a third locking spring 13 and a third locking structure. A third locking structure is arranged inside the first mounting groove 7, one end of the third locking spring 13 is connected to the first conductive sheet 2, and the third locking spring 13 is arranged obliquely; the third locking spring 13 and the third locking structure cooperate and lock and limit; the third locking spring 13 is made of a material with deformation and recovery ability after deformation, so that it can be reset after deformation, for example, the third locking spring 13 is made of a plastic spring; under normal conditions, the first locking spring 4 is in an inclined state.

[0032] The second locking unit includes: a fourth locking spring 14 and a fourth locking structure. The fourth locking structure is arranged inside the second mounting groove 10, one end of the fourth locking spring 14 is connected to the second conductive sheet 3, and the fourth locking spring 14 is arranged tilted; the fourth locking spring 14 and the fourth locking structure cooperate and lock and limit; the fourth locking spring 14 is made of a material with deformation and recovery ability after deformation, so that it can be reset after deformation, for example, the fourth locking spring 14 is made of plastic material; under normal conditions, the first locking spring 4 is in a tilted state.

[0033] like Figure 1-Figure 4The working process of the motor brush cover with a conductive sheet self-locking structure provided by the embodiment of the utility model is as follows: assemble the first conductive sheet 2 and the second conductive sheet 3. Taking the assembly of the first conductive sheet 2 as an example, the front end of the first conductive sheet 2 is inserted into the first mounting groove 7 through the rear end of the first mounting groove 7 and slides forward. When the locking spring sheet (the first locking spring sheet 4 or the third locking spring sheet 13) on the first conductive sheet 2 contacts the corresponding locking structure (the first locking structure 8 or the third locking structure), the locking spring sheet is deformed and passes over the corresponding locking structure. Then the locking spring sheet is reset, and the rear end of the locking spring sheet contacts the front end of the corresponding locking structure to prevent the locking spring sheet from moving backward. At this time, the first limiting step 11 set on the first conductive sheet 2 cooperates with the rear end of the first mounting groove 7, and the first limiting step 11 limits the forward movement of the first conductive sheet 2 after it is assembled in place. The assembly process of the second conductive sheet 3 is the same as the assembly process of the first conductive sheet 2.

[0034] In the description of the present utility model, it should be noted that the terminology nouns in the various embodiments, such as words indicating directions such as "upper", "lower", "front", "back", "left", "right", etc., are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present utility model.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0036] The motor brush cover with a conductive sheet self-locking structure provided by the embodiment of the utility model has at least the following beneficial effects or advantages:

[0037] The motor brush cover with a conductive sheet self-locking structure provided by the embodiment of the utility model has a first mounting groove and a second mounting groove on the brush frame, and the first mounting groove and the second mounting groove are arranged opposite to each other. The first conductive sheet is arranged in the first mounting groove, and the second conductive sheet is arranged in the second mounting groove. The first conductive sheet is limited in the first mounting groove by the first locking unit, and the second conductive sheet is limited in the second mounting groove by the second locking unit. In the motor brush cover with a conductive sheet self-locking structure, since the first conductive sheet is limited in the first mounting groove by the first locking unit, and the second conductive sheet is limited in the second mounting groove by the second locking unit, the assembly process does not require the use of injection molding and positioning column hot melt fixing processes, and its installation process is relatively simple, thereby improving the assembly efficiency of the conductive sheet.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor brush cover with a self-locking structure of a conductive sheet, characterized in that: include: A brush holder, a first conductive sheet and a second conductive sheet; The brush holder is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged opposite to each other; the first conductive sheet is arranged in the first mounting groove, and the second conductive sheet is arranged in the second mounting groove; The first conductive sheet is limited in the first mounting groove by a first locking unit, and the second conductive sheet is limited in the second mounting groove by a second locking unit; A first limiting step is provided at the rear end of the first conductive sheet, and the first limiting step matches with the rear end of the first mounting slot; a second limiting step is provided at the rear end of the second conductive sheet, and the second limiting step matches with the rear end of the second mounting slot.

2. The motor brush cover with a self-locking structure of a conductive sheet according to claim 1, characterized in that: The first locking unit includes: a first locking spring, a first return spring and a first locking structure; A first groove is provided on the first conductive sheet; one end of the first locking spring is connected to the first groove; the first return spring is installed in the first groove, one end of the first return spring is connected to the bottom of the first groove, and the other end of the first return spring is connected to the first locking spring; the first locking structure is provided on the inner side of the first mounting groove, and the first locking spring and the first locking structure cooperate and lock and limit.

3. The motor brush cover with a self-locking structure of a conductive sheet according to claim 1, characterized in that: The second locking unit includes: a second locking spring, a second return spring and a second locking structure; A second groove is provided on the second conductive sheet; one end of the second locking spring is connected to the second groove; the second return spring is installed in the second groove, one end of the second return spring is connected to the bottom of the second groove, and the other end of the second return spring is connected to the second locking spring; the second locking structure is provided on the inner side of the second mounting groove, and the second locking spring and the second locking structure cooperate and lock and limit.

4. The motor brush cover with a self-locking structure of a conductive sheet according to claim 1, characterized in that: The first locking unit includes: a third locking spring and a third locking structure; The third locking structure is arranged on the inner side of the first mounting groove, one end of the third locking spring is connected to the first conductive sheet, and the third locking spring is arranged obliquely; the third locking spring and the third locking structure cooperate and lock and limit; the third locking spring is made of a material with the ability to deform and recover after deformation.

5. The motor brush cover with a self-locking structure of a conductive sheet according to claim 4, characterized in that: The second locking unit includes: a fourth locking spring and a fourth locking structure; The fourth locking structure is arranged on the inner side of the second mounting groove, one end of the fourth locking spring is connected to the second conductive sheet, and the fourth locking spring is arranged obliquely; the fourth locking spring and the fourth locking structure cooperate and lock and limit; the fourth locking spring is made of a material with the ability to deform and recover after deformation.

6. The motor brush cover with a self-locking structure of a conductive sheet according to claim 5, characterized in that: The third locking spring piece and the fourth locking spring piece are spring pieces made of plastic material.

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