CN211557031U - Constant-force long-service-life motor carbon brush holder - Google Patents
Constant-force long-service-life motor carbon brush holder Download PDFInfo
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- CN211557031U CN211557031U CN201922368559.0U CN201922368559U CN211557031U CN 211557031 U CN211557031 U CN 211557031U CN 201922368559 U CN201922368559 U CN 201922368559U CN 211557031 U CN211557031 U CN 211557031U
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- carbon brush
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- constant
- brush holder
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Abstract
The utility model relates to a constant force high life motor carbon brush frame, including carbon brush frame, carbon brush box, carbon brush body, carbon brush box front side is equipped with the carbon brush chamber, carbon brush box slope sets up in the carbon brush intracavity, carbon brush box along carbon brush frame axis ring array evenly distributed, the directional carbon brush frame center of carbon brush box front end, carbon brush body slides along carbon brush length direction, be equipped with double-end constant force spring on the carbon brush frame, double-end constant force spring both ends set up respectively in the carbon brush of carbon brush box both sides and connect, carbon brush body tail end and the laminating of double-end constant force spring front side, double-end constant force spring operating condition is "U" shape, be equipped with the terminal on the carbon brush frame, the terminal is connected with the brush braid electricity on the carbon brush body. The longer carbon brush body is arranged on the motor carbon brush frame with the smaller outer diameter by utilizing the inclined arrangement of the carbon brush body, the service life of the motor is prolonged, the constant elastic force is provided for the carbon brush body through the double-end constant force spring, the effective length of the carbon brush body is improved, and more spaces are vacated for the carbon brush body.
Description
Technical Field
The utility model relates to the technical field of electric machines, in particular to constant force high life motor carbon brush holder.
Background
The carbon brush holder is a necessary component of the direct current brush motor, the carbon brush holder of the carbon brush sliding connecting piece is usually used, the existing carbon brush usually slides along the radial direction of the carbon brush holder, the direct current brush motor is widely applied to the automobile blower, and the service life of the motor carbon brush on the existing automobile blower is not long due to the fact that the automobile has very limited free fall and particularly radial space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a constant force high life motor carbon brush holder, which is not enough for the prior art.
The utility model provides a technical scheme that its technical problem adopted is: a carbon brush holder of a constant-force long-life motor comprises a carbon brush holder, a carbon brush box arranged on the carbon brush holder, and a carbon brush body arranged in the carbon brush box, wherein a conical carbon brush cavity is arranged on the front side of the carbon brush box, the carbon brush box is obliquely arranged in the carbon brush cavity, the carbon brush box extends from the outer edge of the front side of the carbon brush holder to the center of the rear side of the carbon brush holder, the carbon brush boxes are uniformly distributed along an annular array of the axis of the carbon brush holder, the front end of the carbon brush box points to the center of the carbon brush holder, the carbon brush body slides along the length direction of the carbon brush, a double-head constant-force spring is arranged on the carbon brush holder, two ends of the double-head constant-force spring are respectively arranged on carbon brushes on two sides of the carbon brush box and connected, the tail end of the carbon brush body is attached to the front side of the double-head constant-force spring, the working state of the, the wiring terminal is electrically connected with the brush braid on the carbon brush body.
Utilize the carbon brush body slope to set up longer carbon brush body on the motor carbon brush frame of less external diameter in above-mentioned design, improve the life of motor, provide invariable elasticity for the carbon brush body through double-end constant force spring, promote the effective length of carbon brush body, vacate more spaces for the carbon brush body simultaneously.
As the further improvement of this design, the terminal with brush pigtail spot welding is connected, the terminal with carbon brush frame an organic whole injection moulding, low in production cost, the terminal is connected stably with carbon brush frame, and brush pigtail and terminal joint strength are high.
As a further improvement of the design, arc-shaped supporting sheets are arranged on two sides of the carbon brush box, and the supporting sheets extend to one side, facing the tail end of the carbon brush box, of the end part of the double-end constant force spring. The supporting sheet is convenient for limiting and supporting the double-end constant force spring, and the stability of the double-end constant force spring is improved.
As a further improvement of the design, the rear side of the carbon brush body is provided with a limiting groove which is convenient for the double-end constant force spring to be embedded, so that the connection stability of the carbon brush body and the constant force spring is convenient to promote.
As a further improvement of the design, the carbon brush box bottom be equipped with the chamber of stepping down on the carbon brush frame, brush pigtail one end is connected carbon brush body bottom tail end, the brush pigtail stretches into the intracavity of stepping down is convenient for dodge carbon brush pigtail.
The utility model has the advantages that: the utility model discloses utilize the slope setting of carbon brush body to set up longer carbon brush body on the motor carbon brush frame of less external diameter, improve the life of motor, provide invariable elasticity for the carbon brush through double-end constant force spring, promote the effective length of carbon brush body, vacate more spaces for the carbon brush body simultaneously.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of the present invention.
In the figure, 1, a carbon brush frame, 2, a carbon brush box, 3, a carbon brush body, 4, a limiting groove, 5, a binding post, 6, a brush braid, 7, a double-head constant force spring, 8, a supporting sheet, 9, a carbon brush cavity and 10, a yielding cavity are arranged.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only for the purpose of explanation, but not for the purpose of limitation.
Example (b): a constant force long-life motor carbon brush holder 1 comprises a carbon brush holder 1, a carbon brush box 2 arranged on the carbon brush holder 1, and a carbon brush body 3 arranged in the carbon brush box 2, wherein a conical carbon brush cavity 9 is arranged on the front side of the carbon brush box 2, the carbon brush box 2 is obliquely arranged in the carbon brush cavity 9, the carbon brush box 2 extends from the outer edge of the front side of the carbon brush holder 1 to the center of the rear side of the carbon brush holder 1, the carbon brush box 2 is uniformly distributed along the annular array of the axis of the carbon brush holder 1, the front end of the carbon brush box 2 points to the center of the carbon brush holder 1, the carbon brush body 3 slides along the length direction of the carbon brush, a double-head constant force spring 7 is arranged on the carbon brush holder 1, two ends of the double-head constant force spring 7 are respectively arranged on carbon brush connections on two sides of the carbon brush box 2, the tail end of the carbon brush body 3 is attached to the front side of the double-head constant force spring 7, the working state of the double-head constant force, and a binding post 5 is arranged on the carbon brush holder 1, and the binding post 5 is electrically connected with a brush braid 6 on the carbon brush body 3.
Utilize carbon brush body 3 slope to set up longer carbon brush body 3 on the motor carbon brush frame 1 of less external diameter in above-mentioned design, improve the life of motor, provide invariable elasticity for carbon brush body 3 through double-end constant force spring 7, promote carbon brush body 3's effective length, vacate more spaces for carbon brush body 3 simultaneously.
As the further improvement of this design, terminal 5 with 6 spot welding of brush pigtail are connected, terminal 5 with 1 integrative injection moulding of carbon brush frame, low in production cost, terminal 5 are connected stably with carbon brush frame 1, and brush pigtail 6 is high with 5 joint strength of terminal.
As a further improvement of the design, arc-shaped supporting sheets 8 are arranged on two sides of the carbon brush box 2, and the supporting sheets 8 extend to one side of the end part of the double-end constant force spring, which faces to one side of the tail end of the carbon brush box 2.
As a further improvement of the design, the rear side of the carbon brush body 3 is provided with a limiting groove 4 which is convenient for the double-end constant force spring to be embedded, so that the stability of the connection of the carbon brush body 3 and the constant force spring is convenient to promote.
As a further improvement of this design, carbon brush box 2 bottom be equipped with the chamber of stepping down 10 on the carbon brush frame 1, 6 one end of brush pigtail are connected 3 bottom tail ends of carbon brush body, brush pigtail 6 stretches into in the chamber of stepping down 10, be convenient for dodge carbon brush pigtail 6.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (5)
1. A carbon brush holder of a constant-force long-life motor comprises a carbon brush holder, a carbon brush box arranged on the carbon brush holder and a carbon brush body arranged in the carbon brush box, and is characterized in that a carbon brush cavity is arranged on the front side of the carbon brush box, the carbon brush box is obliquely arranged in the carbon brush cavity, the carbon brush box extends from the outer edge of the front side of the carbon brush holder to the center of the rear side of the carbon brush holder, the carbon brush boxes are uniformly distributed along an annular array of the axis of the carbon brush holder, the front end of the carbon brush box points to the center of the carbon brush holder, the carbon brush body slides along the length direction of the carbon brush, a double-head constant-force spring is arranged on the carbon brush holder, two ends of the double-head constant-force spring are respectively arranged on carbon brush connections on two sides of the carbon brush box, the tail end of the carbon brush body is attached to the front side of the double-head constant-force spring, the working state of the double-, the wiring terminal is electrically connected with the brush braid on the carbon brush body.
2. The carbon brush holder for a constant-force long-life motor according to claim 1, wherein the terminal is spot-welded to the braid, and the terminal and the carbon brush holder are integrally injection-molded.
3. The carbon brush holder for the motor with constant force and long service life as claimed in claim 1, wherein arc-shaped supporting pieces are arranged at two sides of the carbon brush box, and the supporting pieces extend to one side of the end part of the double-end constant force spring facing the tail end of the carbon brush box.
4. The carbon brush holder for a constant-force long-life motor according to claim 1, wherein a limiting groove for facilitating insertion of the double-ended constant-force spring is formed in a rear side of the carbon brush body.
5. The carbon brush holder for the constant-force long-life motor according to claim 1, wherein a yielding cavity is formed in the carbon brush holder at the bottom of the carbon brush box, one end of the brush braid is connected to the tail end of the bottom of the carbon brush body, and the brush braid extends into the yielding cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368559.0U CN211557031U (en) | 2019-12-26 | 2019-12-26 | Constant-force long-service-life motor carbon brush holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368559.0U CN211557031U (en) | 2019-12-26 | 2019-12-26 | Constant-force long-service-life motor carbon brush holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211557031U true CN211557031U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922368559.0U Active CN211557031U (en) | 2019-12-26 | 2019-12-26 | Constant-force long-service-life motor carbon brush holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211557031U (en) |
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2019
- 2019-12-26 CN CN201922368559.0U patent/CN211557031U/en active Active
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