CN211151685U - Torque spring fixing structure and carbon brush assembly - Google Patents
Torque spring fixing structure and carbon brush assembly Download PDFInfo
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- CN211151685U CN211151685U CN202020190875.3U CN202020190875U CN211151685U CN 211151685 U CN211151685 U CN 211151685U CN 202020190875 U CN202020190875 U CN 202020190875U CN 211151685 U CN211151685 U CN 211151685U
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- carbon brush
- fixing
- torque spring
- clamping groove
- brush holder
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Abstract
The utility model relates to a torque spring fixed knot constructs and carbon brush assembly, torque spring fixed knot constructs and includes: the fixed column is arranged on the carbon brush holder, a clamping groove is formed in the side face of the fixed column, and the upper end of the clamping groove is communicated with the top of the fixed column. The carbon brush assembly includes: the carbon brush holder is of an annular structure; the carbon brush is arranged on the carbon brush frame, the front end of the carbon brush faces the inner side of the carbon brush frame, and the tail end of the carbon brush faces the outer side of the carbon brush frame; the carbon brush holder is provided with at least one carbon brush, the carbon brush holder is provided with at least one fixed column, the at least one fixed column and the at least one carbon brush are correspondingly arranged on the carbon brush holder, the side surface of the at least one fixed column is provided with a clamping groove, and the upper end of the clamping groove is communicated with the top of the corresponding fixed column; and at least one torque spring which is correspondingly sleeved on at least one fixed column. The utility model discloses simplify the structure of carbon brush frame, reduced mould complexity, promoted product stability and still reducible cost.
Description
Technical Field
The utility model relates to a fixed knot constructs, especially relates to a torque spring fixed knot constructs and carbon brush assembly.
Background
An electric machine (commonly called as "motor") refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction, and its main function is to generate driving torque as a power source for electrical appliances or various machines.
In implementing the present invention, the inventor found that the carbon brush holder of the prior art motor is fixed by using the torque spring, and the torque spring generally needs three structures for fixing. Fig. 3 is a schematic structural view of a carbon brush assembly of the related art. As shown in fig. 3, the torsion spring S1 is sleeved on the central supporting post S2, and at the same time, one end S11 is supported and positioned by the carbon brush S3, and the other end S12 is fixed on the fixing structure S4 that is additionally arranged on the brush holder, so that the space structure of the brush holder is complicated and the cost of the mold is high.
SUMMERY OF THE UTILITY MODEL
For the technical problem who exists among the solution above-mentioned prior art, the embodiment of the utility model provides a torque spring fixed knot constructs and carbon brush assembly. The specific technical scheme is as follows:
in a first aspect, a torsion spring fixing structure is provided for fixing a torsion spring to a carbon brush holder, wherein the torsion spring fixing structure comprises:
the fixing column is arranged on the carbon brush holder, a clamping groove is formed in the side face of the fixing column, and the upper end of the clamping groove is communicated with the top of the fixing column;
when the torque spring is fixedly installed on the carbon brush holder, the torque spring is sleeved on the fixed column, the upper end of the torque spring is bent inwards, and the torque spring is clamped in the clamping groove through the top of the fixed column.
In a first possible implementation manner of the first aspect, the fixing column and the carbon brush holder are of an integrated structure.
In a second possible implementation manner of the first aspect, the fixing column is a cylindrical structure.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, a depth of the slot is the same as a radius of the fixing column.
In a fourth possible implementation manner of the first aspect, a chamfer is further provided at a communication position between the top of the fixing column and the clamping groove.
In a second aspect, a carbon brush assembly is provided, which includes:
the carbon brush holder is of an annular structure;
the carbon brush is arranged on the carbon brush frame, the front end of the carbon brush faces the inner side of the carbon brush frame, and the tail end of the carbon brush faces the outer side of the carbon brush frame;
the carbon brush holder is provided with at least one carbon brush, the carbon brush holder is provided with at least one fixed column, the at least one fixed column and the at least one carbon brush are correspondingly arranged on the carbon brush holder, the side surface of the at least one fixed column is provided with a clamping groove, and the upper end of the clamping groove is communicated with the top of the corresponding fixed column; and
the at least one torque spring is correspondingly sleeved on the at least one fixed column, the lower end of the at least one torque spring is correspondingly abutted against the tail end of the at least one carbon brush, and the upper end of the at least one torque spring is bent inwards and clamped in the clamping groove through the top of the at least one fixed column.
In a first possible implementation manner of the second aspect, the carbon brush holder and the at least one fixing column are of an integral structure.
In a second possible implementation manner of the second aspect, the at least one fixing pillar is a cylindrical structure.
In a third possible implementation manner of the second aspect, a chamfer is further provided at a communication position between the top of at least one fixing column and its corresponding slot.
In a fourth possible implementation manner of the second aspect, the number of the at least one carbon brush, the at least one fixed column, and the at least one torque spring is two, the two carbon brushes are disposed on the carbon brush holder at intervals, the two fixed columns are disposed on the carbon brush holder at intervals and are correspondingly located on the side edges of the two carbon brushes, the two torque springs are correspondingly sleeved on the two fixed columns, the lower ends of the two torque springs correspondingly abut against the tail ends of the two carbon brushes, and the upper ends of the two torque springs are bent inward and correspondingly clamped in the clamping grooves of the two fixed columns.
Compared with the prior art, the utility model the advantage that has have:
the utility model discloses a torque spring fixed knot constructs and carbon brush assembly through set up the draw-in groove on the fixed column, inwards buckles torque spring's upper end, and the joint has simplified the structure of carbon brush frame in the draw-in groove, reduces the mould complexity, promotes product stability and still can reduce cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a carbon brush assembly according to one embodiment and a second embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to one embodiment of the present invention.
Fig. 3 is a schematic structural view of a carbon brush assembly of the related art.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
At present, for the carbon brush holder of the motor to be fixed by using the torque spring, as shown in fig. 3, the torque spring sleeve S1 is on the central supporting column S2, while one end S11 thereof is supported and positioned by the carbon brush S3, and the other end S12 is fixed on the fixing structure S4 which is additionally arranged on the brush holder, thereby resulting in a complex space structure of the brush holder and high cost of the mold.
The utility model discloses a torque spring fixed knot constructs 1 and carbon brush assembly 4, has simplified the structure of carbon brush frame, reduces mould complexity, promotes product stability and still can reduce cost.
In an embodiment of the present invention, fig. 1 is a schematic structural view of a carbon brush assembly 4 according to an embodiment of the present invention. As shown in fig. 1, the torque spring fixing structure 1 is used for installing and fixing the torque spring 2 on the carbon brush holder 3, and the torque spring 2 fixing structure 1 includes a fixing column 101, in which:
the fixing post 101 is mainly used for positioning and supporting the torque spring 2. The fixing post 101 disclosed in the present embodiment is a cylindrical structure, but not limited thereto. Fixing column 101 is disposed on carbon brush holder 3. Preferably, the fixing post 101 and the carbon brush holder 3 are an integral structure, and may be formed by one-time injection molding through a mold, but not limited thereto.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to an embodiment of the present invention. As shown in fig. 2, a clamping groove 102 is formed in a side surface of the fixing column 101, and the clamping groove 102 is used for clamping the upper end 21 of the torque spring 2 to fix the upper end 21, so as to achieve spring retention, so that the carbon brush holder 3 does not need to be additionally provided with a fixing structure to fix the upper end 21 of the torque spring 2, thereby simplifying the structure of the carbon brush holder 3, reducing the complexity of a mold, improving the stability of a product, and reducing the cost. Preferably, the depth of the slot 102 is the same as the radius of the fixing post 101, but not limited thereto.
Referring to fig. 2 again, the upper end of the slot 102 is communicated with the top of the fixing post 101, so that the upper end 21 of the torque spring 2 can be clamped in the slot 102 through the top of the fixing post 101, thereby facilitating the clamping of the torque spring 2. Referring to fig. 2 again, preferably, a chamfer 103 is further disposed at a communication position between the top of the fixing column 101 and the slot 102, so that the upper end 21 of the torque spring 2 can slide into the slot 102 along the chamfer 103, and thus is clamped in the slot 102, thereby facilitating the clamping of the torque spring 2, but not limited thereto.
Referring to fig. 1 and 2 again, when the torque spring 2 is mounted and fixed on the carbon brush holder 3, the torque spring 2 is sleeved on the fixing column 101, the upper end 21 of the torque spring 2 is bent inward, and is clamped in the clamping groove 102 through the top of the fixing column 101, so that the spring holding force is realized through the clamping groove 102.
In two embodiments of the present invention, fig. 1 is a schematic structural view of a carbon brush assembly 4 according to two embodiments of the present invention. As shown in fig. 1, the carbon brush assembly 4 includes a carbon brush holder 3, at least one carbon brush 5, at least one fixing column 101, and at least one torque spring 2, where:
referring again to fig. 1, the carbon brush holder 3 is a ring structure, and the carbon brush holder 3 is mainly used for providing a rigid support for at least one carbon brush 5. The at least one carbon brush 5 is disposed on the carbon brush holder 3, and a front end 51 of the at least one carbon brush 5 faces the inside of the carbon brush holder 3, and a tail end 52 of the at least one carbon brush 5 faces the outside of the carbon brush holder 3.
The at least one fixing post 101 is mainly used for positioning and supporting the at least one torsion spring 2. The at least one fixing post 101 disclosed in the present embodiment is a cylindrical structure, but not limited thereto. At least one fixing column 101 is arranged on the carbon brush holder 3. Preferably, at least one fixing post 101 and the carbon brush holder 3 are of an integral structure, and can be formed by one-time injection molding through a mold, but not limited thereto.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to two embodiments of the present invention. As shown in fig. 2, a clamping groove 102 is formed in a side surface of at least one fixing column 101, and the clamping groove 102 is used for clamping the upper end 21 of at least one torque spring 2 to fix the upper end 21, so as to achieve spring retention, so that the embodiment does not need a fixing structure additionally arranged on the carbon brush holder 3 to fix the upper end 21 of at least one torque spring 2, thereby simplifying the structure of the carbon brush holder 3, reducing the complexity of the mold, improving the stability of the product, and reducing the cost. Preferably, the depth of the slot 102 is the same as the radius of the corresponding fixing post 101, but not limited thereto.
Referring to fig. 2 again, the upper end of the slot 102 is communicated with the top of the corresponding fixing post 101, so that the upper end 21 of the at least one torque spring 2 can be clamped in the slot 102 through the top of the at least one fixing post 101, thereby facilitating the clamping of the at least one torque spring 2. Referring to fig. 2 again, preferably, a chamfer 103 is further disposed at a communication position between the top of the at least one fixing post 101 and the slot 102, so that the upper end 21 of the torque spring 2 can slide into the slot 102 along the chamfer 103, and thus is clamped in the slot 102, thereby facilitating the clamping of the torque spring 2, but not limited thereto.
Referring to fig. 1 and 2 again, the at least one torque spring 2 is correspondingly sleeved on the at least one fixing column 101, the lower end 22 of the at least one torque spring 2 correspondingly abuts against the tail end 52 of the at least one carbon brush 5, and the upper end 21 of the at least one torque spring 2 is bent inward and is clamped in the clamping groove 102 through the top of the at least one fixing column 101, so as to realize the spring holding force.
In a preferred embodiment, referring to fig. 1 again, the number of the at least one carbon brush 5, the at least one fixing column 101, and the at least one torque spring 2 is two, the two carbon brushes 5 are disposed on the carbon brush holder 3 at intervals, the two fixing columns 101 are disposed on the carbon brush holder 3 at intervals and are correspondingly located at the side edges of the two carbon brushes 5, the two torque springs 2 are correspondingly sleeved on the two fixing columns 101, the lower ends 22 of the two torque springs 2 are correspondingly abutted against the tail ends 52 of the two carbon brushes 5, the upper ends 21 of the two torque springs 2 are bent inward and are correspondingly clamped in the clamping grooves 102 on the two fixing columns 101, but not limited thereto, and those skilled in the art may select and dispose other suitable numbers of the at least one carbon brush 5, the at least one fixing column 101, and the at least one torque spring 2 according to actual.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. A torque spring fixing structure for fixing a torque spring to a carbon brush holder, the torque spring fixing structure comprising:
the fixing column is arranged on the carbon brush holder, a clamping groove is formed in the side face of the fixing column, and the upper end of the clamping groove is communicated with the top of the fixing column;
when the torque spring is installed and fixed on the carbon brush frame, the torque spring is sleeved on the fixed column, the upper end of the torque spring is bent inwards, and the torque spring is clamped in the clamping groove through the top of the fixed column.
2. The torsion spring fixing structure according to claim 1, wherein the fixing post and the carbon brush holder are of an integral structure.
3. The torsion spring fixing structure according to claim 1, wherein the fixing post is a cylindrical structure.
4. The torque spring fixing structure according to claim 3, wherein the depth of the catching groove is the same as the radius of the fixing post.
5. The torque spring fixing structure according to claim 1, wherein a chamfer is further provided at a communication position between the top of the fixing post and the slot.
6. A carbon brush assembly, comprising:
the carbon brush holder is of an annular structure;
the carbon brush is arranged on the carbon brush frame, the front end of the carbon brush faces the inner side of the carbon brush frame, and the tail end of the carbon brush faces the outer side of the carbon brush frame;
the at least one fixing column and the at least one carbon brush are correspondingly arranged on the carbon brush frame, a clamping groove is formed in the side face of the at least one fixing column, and the upper end of the clamping groove is communicated with the top of the corresponding fixing column; and
the at least one torque spring is correspondingly sleeved on the at least one fixed column, the lower end of the at least one torque spring is correspondingly abutted against the tail end of the at least one carbon brush, and the upper end of the at least one torque spring is bent inwards and clamped in the clamping groove through the top of the at least one fixed column.
7. The carbon brush assembly according to claim 6, wherein the carbon brush holder and the at least one fixing post are of an integral structure.
8. The carbon brush assembly according to claim 6, wherein the at least one fixing post is of a cylindrical configuration.
9. The carbon brush assembly according to claim 6, wherein a chamfer is further provided at a position where the top of the at least one fixing column is communicated with the corresponding clamping groove.
10. The carbon brush assembly according to claim 6, wherein the number of the at least one carbon brush, the at least one fixing post and the at least one torque spring is two, the two carbon brushes are arranged on the carbon brush holder at intervals, the two fixing posts are arranged on the carbon brush holder at intervals and are correspondingly located on the side edges of the two carbon brushes, the two torque springs are correspondingly sleeved on the two fixing posts, the lower ends of the two torque springs are correspondingly abutted against the tail ends of the two carbon brushes, and the upper ends of the two torque springs are bent inwards and are correspondingly clamped in the clamping grooves of the two fixing posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190875.3U CN211151685U (en) | 2020-02-21 | 2020-02-21 | Torque spring fixing structure and carbon brush assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190875.3U CN211151685U (en) | 2020-02-21 | 2020-02-21 | Torque spring fixing structure and carbon brush assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151685U true CN211151685U (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020190875.3U Active CN211151685U (en) | 2020-02-21 | 2020-02-21 | Torque spring fixing structure and carbon brush assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211151685U (en) |
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2020
- 2020-02-21 CN CN202020190875.3U patent/CN211151685U/en active Active
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