CN204633562U - Direct current low noise brush motor - Google Patents
Direct current low noise brush motor Download PDFInfo
- Publication number
- CN204633562U CN204633562U CN201520384632.2U CN201520384632U CN204633562U CN 204633562 U CN204633562 U CN 204633562U CN 201520384632 U CN201520384632 U CN 201520384632U CN 204633562 U CN204633562 U CN 204633562U
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- brush
- commutator
- brush holder
- base plate
- motor
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Abstract
The utility model provides a kind of direct current low noise brush motor, comprise brush mount component, brush mount component comprises brush holder, brush holder base plate, carbon brush, commutator and lead-out wire, brush holder base plate is provided with brush-box, brush-box and brush holder base plate adopt Shooting Technique one-body molded, solve the problem of the bullet contracting flexibility affecting carbon brush because traditional brush mount component brush-box in assembling process is yielding, and reduce cost; On lead-out wire, parallel filtering electric capacity reduces electric motor starting and brush and commutator segment contact point and produces peak voltage when disconnecting, thus reduces the noise of motor; Original two location is improved to four location, effectively ensure that the concentricity of rotor running, carbon brush and commutator, reduce the wearing and tearing of commutator and carbon brush, thus reduce noise.Direct current low noise brush motor of the present utility model, has concentricity and stability is high, and noise is low, steady performance.
Description
Technical field
The utility model relates to DC motor technology field, particularly designs a kind of direct current low noise brush motor.
Background technology
The brush mount component of brush direct current motor is its important part, and the performance of brush mount component directly affects the overall performance of motor.Traditional brush mount component adopts epoxy plate plastic material and copper sheathing brush-box to form, and easily makes brush-box be out of shape, affect the bullet contracting flexibility of carbon brush, and production cost is higher in assembling process.
The starting torque of brush direct current motor is very large, in starting process immediate current strengthen and mains fluctuations also larger, brush and commutator segment contact point can produce peak voltage and electro instrument noise very greatly when disconnecting, affect the performance of motor.
In addition, the mechanical loss of each side is there is in motor in running, the position, commutator direction that conventional brush mount component adopts two location (as shown in Figure 2) to determine, this kind of locate mode well can not ensure rotor running, carbon brush and commutator concentricity in the running, and then add the wearing and tearing of carbon brush in operation process, too increase carbon dust adhesion amount on commutator simultaneously and bring noise.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome deficiency of the prior art, and the utility model provides a kind of direct current low noise brush motor.
The utility model solves the technical scheme that its technical problem will adopt: a kind of direct current low noise brush motor, comprise brush mount component, described brush mount component comprises brush holder, brush holder base plate, carbon brush and commutator, described brush holder base plate is provided with brush-box, described carbon brush is fixedly connected with described brush holder base plate by brush-box, described commutator is fixed by screws on described brush holder, described carbon brush and commutator are respectively two groups, described two groups of carbon brush are arranged along brush holder radial symmetric, described two groups of commutators are arranged along brush holder radial symmetric, described brush-box and described brush holder base plate one-body molded.By adopting Shooting Technique by brush-box and brush holder base plate injection moulding integrated molding, solving the problem of the bullet contracting flexibility affecting carbon brush because traditional brush mount component brush-box in assembling process is yielding, and reducing cost.
Further, also comprise lead-out wire, described lead-out wire is two, described lead-out wire one end is connected with described carbon brush, the other end stretches out outside described brush holder by the coil of crossing be arranged on described brush holder, and described lead-out wire is provided with filter capacitor, and described filter capacitor is connected in parallel on two described lead-out wires.Adopt filter capacitor to reduce electric motor starting and brush and commutator segment contact point and produce peak voltage when disconnecting, thus reduce the noise of motor.
Further, described carbon brush is fixedly connected with described brush holder base plate by screw.Original two location is improved to four location, effectively ensure that the concentricity of rotor running, carbon brush and commutator, reduce the wearing and tearing of commutator and carbon brush, thus reduce noise.
The beneficial effects of the utility model are: direct current low noise brush motor of the present utility model, adopt Shooting Technique by brush-box and brush holder base plate injection moulding integrated molding, solve the problem of the bullet contracting flexibility affecting carbon brush because traditional brush mount component brush-box in assembling process is yielding, and reduce cost; Adopt filter capacitor to reduce electric motor starting and brush and commutator segment contact point and produce peak voltage when disconnecting, thus reduce the noise of motor; Original two location is improved to four location, effectively ensure that the concentricity of rotor running, carbon brush and commutator, reduce the wearing and tearing of commutator and carbon brush, thus reduce noise.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of direct current low noise brush motor.
Fig. 2 is the double locating structure schematic diagram of direct current low noise brush motor
In figure: 1, brush mount component, 2, brush holder, 3, brush holder base plate, 4, carbon brush, 5, commutator, 6, brush-box, 7, screw, 8, lead-out wire, 9, cross coil, 10, filter capacitor.
Embodiment
By reference to the accompanying drawings the utility model is described in detail now.This figure is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As shown in Figure 1-2, a kind of direct current low noise brush motor of the present utility model, comprise brush mount component, described brush mount component 1 comprises brush holder 2, brush holder base plate 3, carbon brush 4 and commutator 5, described brush holder base plate 3 is provided with brush-box 6, described carbon brush 4 is fixedly connected with described brush holder base plate 3 by brush-box 6, described commutator 5 is fixed on described brush holder 2 by screw 7, described carbon brush 4 and commutator 5 are respectively two groups, described two groups of carbon brush 4 are arranged along brush holder 2 radial symmetric, described two groups of commutators 5 are arranged along brush holder 2 radial symmetric, described brush-box 6 is one-body molded with described brush holder base plate 3.By adopting Shooting Technique by brush-box 5 and brush holder base plate 3 injection moulding integrated molding, solving the problem affecting the bullet contracting flexibility of carbon brush 4 because traditional brush mount component 1 brush-box 5 in assembling process is yielding, and reducing cost.
Further, also comprise lead-out wire 8, described lead-out wire 8 is two, described lead-out wire 8 one end is connected with described carbon brush 4, the other end stretches out outside described brush holder 2 by the coil 9 of crossing be arranged on described brush holder 2, described lead-out wire 8 is provided with filter capacitor 10, and described filter capacitor 10 is connected in parallel on two described lead-out wires 8.Adopt filter capacitor 10 to reduce electric motor starting and carbon brush 4 and commutator 5 contact point and produce peak voltage when disconnecting, thus reduce the noise of motor.
Further, described carbon brush 4 is fixedly connected with described brush holder base plate 3 by screw 7.Original two location is improved to four location, effectively ensure that rotor running, carbon brush 4 and the concentricity of commutator 5, reduce the wearing and tearing of commutator 5 and carbon brush 4, thus reduce noise.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff not departing from scope of the present utility model, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a direct current low noise brush motor, comprise brush mount component (1), it is characterized in that: described brush mount component (1) comprises brush holder (2), brush holder base plate (3), carbon brush (4) and commutator (5), described brush holder base plate (3) is provided with brush-box (6), described carbon brush (4) is fixedly connected with described brush holder base plate (3) by brush-box (6), described commutator (5) is fixed on described brush holder (2) by screw (7), described carbon brush (4) and commutator (5) are respectively two groups, described two groups of carbon brush (4) are arranged along brush holder (2) radial symmetric, described two groups of commutators (5) are arranged along brush holder radial symmetric, described brush-box (6) is one-body molded with described brush holder base plate (3).
2. direct current low noise brush motor as claimed in claim 1, it is characterized in that: also comprise lead-out wire (8), described lead-out wire (8) is two, two described lead-out wire (8) one end are connected with carbon brush (4) described in two groups respectively, and the other end stretches out described brush holder (2) outward by the coil (9) of crossing be arranged on described brush holder (2).
3. direct current low noise brush motor as claimed in claim 2, it is characterized in that: also comprise filter capacitor (10), described filter capacitor (10) is connected in parallel on two described lead-out wires (8).
4. direct current low noise brush motor as claimed in claim 1, is characterized in that: described carbon brush (4) is fixedly connected with described brush holder base plate (3) by screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384632.2U CN204633562U (en) | 2015-06-05 | 2015-06-05 | Direct current low noise brush motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384632.2U CN204633562U (en) | 2015-06-05 | 2015-06-05 | Direct current low noise brush motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633562U true CN204633562U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520384632.2U Active CN204633562U (en) | 2015-06-05 | 2015-06-05 | Direct current low noise brush motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110710066A (en) * | 2017-05-15 | 2020-01-17 | 法雷奥系统公司 | Carbon brush holder plate for electric motor, windshield wiper motor, and method for assembling windshield wiper motor |
-
2015
- 2015-06-05 CN CN201520384632.2U patent/CN204633562U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110710066A (en) * | 2017-05-15 | 2020-01-17 | 法雷奥系统公司 | Carbon brush holder plate for electric motor, windshield wiper motor, and method for assembling windshield wiper motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |