CN205070123U - Trapezoidal seat carbon brush for motor - Google Patents
Trapezoidal seat carbon brush for motor Download PDFInfo
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- CN205070123U CN205070123U CN201520324162.0U CN201520324162U CN205070123U CN 205070123 U CN205070123 U CN 205070123U CN 201520324162 U CN201520324162 U CN 201520324162U CN 205070123 U CN205070123 U CN 205070123U
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- carbon brush
- commutator
- lubricating layer
- trapezoidal
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Abstract
The utility model discloses a trapezoidal seat carbon brush for motor, include: the high lubricant film that has the working face that is used for the line contact commutator, be located on the high lubricant film and connected high conducting layer, connect the carbon brush wire of carbon brush, wherein, high lubricant film perpendicular to the longitudinal section of working face is trapezoidal, and the bottom of working face is for being used for the line contact the convex bottom of commutator. The utility model discloses a trapezoidal seat carbon brush for motor adopts high conducting layer and high lubricant film compound, and has peculiar shape, can guarantee high lubricant film bottom circular arc and commutator contact all the time, and consequently the carbon brush electric conductive property of preparation is good, the antifriction, and the noise is little.
Description
Technical field
The utility model relates to a kind of trapezoidal seat carbon brush used for electric engine, belongs to electrical carbon field.
Background technology
Along with car popularizing in modern society, the various requirement of people to car is also more and more higher.Various motor is had to facilitate user to the operation of each system of car in car inner.For seat system, the lifting of seat, movable, hue angle are all by driven by motor.This type of motor generally adopts low pressure (being generally about 12V) brush direct current motor.Because seat motor is close to the users, therefore very high to the requirement of its noise.Inside noise system, the break-in of carbon brush and commutator occupies most of ratio, therefore also itself proposes higher requirement to this type of carbon brush material, structure.
The seat motor carbon brush of current use generally adopt copper powder, graphite powder and binding agent mold pressing fine copper soft whipping wire shaping, sinter, process, in general carbon brush body is a kind of uniform component.This type of carbon brush meets the requirement of motor power performance in current fired basis instinct, but its noise performance more and more can not meet the requirement of user.
Seat motor carbon brush of the present invention, based on the rigors of seat motor to noise, makes every effort to reduce the noise that carbon brush and commutator break-in produce, namely increases lubrication, minimizing spark etc.Carbon brush body adopts two kinds of component compactings, and in these two kinds of components, one is high lubricating layer, and one is high connductivity layer, and carbon brush is processed into peculiar structure, ensures high lubricating layer contact commutator all the time, reaches the object of low pressure drop, low noise.
Utility model content
The utility model is in order to overcome the deficiency existed in existing seat motor carbon brush technology, a kind of trapezoidal seat carbon brush used for electric engine is provided, by high lubricating layer is become peculiar structure with high connductivity layer compound aft-loaded airfoil, prepare the carbon brush of low pressure drop, low noise, reach and increase lubrication, reduce spark, improve the object of Service Life of Carbon Brush.
For achieving the above object, the utility model provides a kind of trapezoidal seat carbon brush used for electric engine, comprising:
There is the high lubricating layer of the working face for linear contact lay commutator;
To be positioned on described high lubricating layer and connected high connductivity layer;
Connect the brush lead of described high connductivity layer;
Wherein, described high lubricating layer is trapezoidal perpendicular to the longitudinal section of described working face, and the bottom of described working face is for being used for the circular arc bottom of commutator described in linear contact lay.
Wherein, the working face of described high lubricating layer is the side cambered surface near commutator.
Particularly, described high lubricating layer is trapezoidal perpendicular to the longitudinal section of described working face, and the length on its top is less than bottom length.
Especially, described high lubricating layer bottom surface and described working face join the circular arc formed and are used for commutator described in linear contact lay.
Particularly, described high lubricating layer end face and described working face join the circular arc formed and do not contact with described commutator.
Especially, described high lubricating layer height is the 1/5-1/2 of described carbon brush height.
Wherein, described high lubricating layer comprises electrolytic copper powder, native graphite, lubricant and phenolic resins.
Particularly, the weight of each raw material of described high lubricating layer is: electrolytic copper powder 5-45, native graphite 50-90, lubricant 2-6, phenol-formaldehyde resin powder 20-40, and the weight portion sum of described electrolytic copper powder, native graphite and lubricant is 100 parts.
Especially, the weight of each raw material of described high lubricating layer compound is preferably: electrolytic copper powder 15-45, native graphite 50-85, lubricant 4.5-6, phenol-formaldehyde resin powder 25-35, the weight portion sum of described electrolytic copper powder, native graphite and lubricant is 100 parts.
Particularly, the copper content of described electrolytic copper powder is>=99%, and granularity is-300 orders, and pine dress is than being 0.8-1.9g/cm
3.
Especially, described native graphite is black scale like powder, and granularity is-100 orders.
Particularly, described phenol-formaldehyde resin powder is yellow powder, is thermosetting phenolic resin, and granularity is+200 orders.
Especially, described lubricant comprises methenamine and other raw material, and the weight of described methenamine and other raw material is: methenamine 5-10; Other raw materials are 90-150.
Particularly, other raw material of described lubricant comprises natural graphite powder, molybdenum bisuphide and liquid phenolic resin, and the weight of itself and methenamine is:
Methenamine 5-10, natural graphite powder 35-55;
Methenamine 5-10, molybdenum bisuphide 35-55;
Methenamine 5-10, liquid phenolic resin 20-40;
The weight portion sum of described natural graphite powder, molybdenum bisuphide and methenamine is 100 parts.
Wherein, described methenamine white crystalline powder, purity >=99%.
Particularly, described molybdenum bisuphide is for being grey black pressed powder, and granularity is-300 orders, and molybdenum bisuphide has extremely low coefficient of friction and higher PV characteristic, and greasy property is good, and compression strength is large.
Especially, described natural graphite powder is Spherical graphite particles, and granularity is-300 order ~+40 orders.
Particularly, described liquid phenolic resin is brown liquid, solids content >=60%.
Wherein, described high connductivity layer has the trapezoidal longitudinal cross section corresponding with the trapezoidal longitudinal cross section of described high lubricating layer, and its hypotenuse is positioned on the extended line of described high lubricating layer cross section hypotenuse.
Particularly, described high connductivity layer to be positioned on described high lubricating layer and to be connected with it.
Especially, the bottom surface of described high connductivity layer is connected with the end face of described high lubricating layer.
Particularly, the side cambered surface of the close commutator of described high connductivity layer does not contact with described commutator.
Especially, described high connductivity layer height is the 1/2-4/5 of described carbon brush height.
Wherein, described high connductivity layer comprises electrolytic copper powder, native graphite and phenolic resins.
Particularly, the weight of each raw material of described upper high connductivity layer compound is: electrolytic copper powder 30-60, native graphite 40-70, phenol-formaldehyde resin powder 20-40, and the weight portion sum of described electrolytic copper powder and native graphite is 100 parts.
Especially, the weight of each raw material of described high connductivity layer compound is preferably: electrolytic copper powder 45-55, native graphite 45-55, phenol-formaldehyde resin powder 25-35, the weight portion sum of described electrolytic copper powder and native graphite is 100 parts.
Particularly, the copper content of described electrolytic copper powder is>=99%, and granularity is-300 orders, and pine dress is than being 0.8-1.9g/cm
3.
Especially, described native graphite is black scale like powder, and granularity is-100 orders.
Particularly, described phenol-formaldehyde resin powder is yellow powder, is thermosetting phenolic resin, and granularity is+200 orders.
Wherein, described carbon brush is trapezoidal perpendicular to the longitudinal section of described working face, and the bottom of described working face is for being used for the circular arc bottom of commutator described in linear contact lay.
Wherein, the plug wire degree of depth of described brush lead is the 1/2-4/5 of described carbon brush height.
Particularly, described brush lead is copper soft whipping wire.
The seat motor carbon brush that the utility model provides, tool has the following advantages:
1, the utility model seat motor carbon brush adopts high connductivity layer and high lubricating layer compound, high connductivity layer and high lubricating layer adopt different material formula respectively, high connductivity layer material resistivity is low, conduct electricity very well, high lubricating layer material friction coefficient is low, greasy property is good, and noise is little, reaches the object of low pressure drop, low noise after two-layer compound.
2, the lubricant of the high lubricating layer of the utility model seat motor carbon brush adopts the graphite powder of particular size and the collaborative lubrication of molybdenum bisuphide, can reach good lubricant effect, improve the greasy property of high lubricating layer, reduce the friction with commutator.
Methenamine is added in the lubricant of 3, the high lubricating layer of the utility model seat motor carbon brush, methenamine is a kind of resinae curing agent preferably, methenamine add the intensity that can increase material, avoid the defect that in conventional carbon brush product, lubrification and intensity can not get both, make carbon brush of the present utility model while increasing lubrication, ensure that the intensity of carbon brush, increase the carbon brush life-span.
4, the utility model seat motor carbon brush has peculiar structure, its cross section is trapezoidal, all the time can ensure that high lubricating layer bottom circular arc contacts with commutator, and high connductivity layer does not contact commutator, carbon brush and commutator are contacted from face and becomes linear contact lay, reduce the friction between carbon brush and commutator, reduce noise.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the trapezoidal seat carbon brush used for electric engine of the utility model;
Fig. 2 is the vertical view of the trapezoidal seat carbon brush used for electric engine of the utility model.
Description of reference numerals:
1, high lubricating layer; 2, high connductivity layer; 3, brush lead.
Embodiment
Below in conjunction with accompanying drawing, camera explanation is carried out to the utility model.Advantage and disadvantage of the present utility model will be more clear along with description.But these embodiments are only exemplary, do not form any restriction to scope of the present utility model.It will be understood by those skilled in the art that and do not departing under spirit and scope of the present utility model and can modify to the details of technical solutions of the utility model and form or replace, but these amendments and replacement all fall in protection range of the present utility model.
As shown in Figure 1, 2, trapezoidal seat carbon brush used for electric engine of the present utility model is trapezoidal perpendicular to the longitudinal section of described working face, comprises high lubricating layer 1, high connductivity layer 2 and brush lead 3.
High lubricating layer 1 has the working face for linear contact lay commutator, and its working face is the side cambered surface near commutator.High lubricating layer 1 is trapezoidal perpendicular to the longitudinal section of working face, and the length of its bottom is greater than top length.The bottom surface of high lubricating layer 1 and working face join the circular arc formed and are used for commutator described in linear contact lay.High lubricating layer height is the 1/5-1/2 of carbon brush height.
In the utility model, high lubricating layer 1 comprises electrolytic copper powder, native graphite, lubricant and phenolic resins, the weight of each raw material is: electrolytic copper powder 30-60, native graphite 40-70, phenol-formaldehyde resin powder 20-40, the weight portion sum of described electrolytic copper powder and native graphite is 100 parts.
High connductivity layer 2 has the trapezoidal longitudinal cross section corresponding with the trapezoidal longitudinal cross section of high lubricating layer 1, and its hypotenuse is positioned on the extended line of described high lubricating layer cross section hypotenuse.High connductivity layer 2 to be positioned on high lubricating layer 1 and to be connected with it, and the bottom surface of high connductivity layer 2 is connected with the end face of high lubricating layer 1.High connductivity layer 2 does not contact with commutator near the side cambered surface of commutator.High connductivity layer height is the 1/2-4/5 of described carbon brush height.
In the utility model, high connductivity layer 2 comprises electrolytic copper powder, native graphite and phenolic resins, the weight of each raw material is: electrolytic copper powder 30-60, native graphite 40-70, phenol-formaldehyde resin powder 20-40, the weight portion sum of described electrolytic copper powder and native graphite is 100 parts.
The plug wire degree of depth of brush lead 3 is the 1/2-4/5 of described carbon brush height.In the utility model, brush lead is copper soft whipping wire.
Claims (6)
1. a trapezoidal seat carbon brush used for electric engine, comprising:
There is the high lubricating layer of the working face for linear contact lay commutator;
To be positioned on described high lubricating layer and connected high connductivity layer;
Connect the brush lead of described carbon brush;
It is characterized in that, described high lubricating layer is trapezoidal perpendicular to the longitudinal section of described working face, and the bottom of described working face is for being used for the circular arc bottom of commutator described in linear contact lay.
2. carbon brush according to claim 1, is characterized in that, described high connductivity layer has the trapezoidal longitudinal cross section corresponding with the trapezoidal longitudinal cross section of described high lubricating layer.
3. carbon brush according to claim 1, is characterized in that, described high lubricating layer height is the 1/5-1/2 of described carbon brush height.
4. carbon brush according to claim 1, is characterized in that, described high connductivity layer height is the 1/2-4/5 of described carbon brush height.
5. carbon brush according to claim 1, is characterized in that, the plug wire degree of depth of described brush lead is the 1/2-4/5 of described carbon brush height.
6. carbon brush according to claim 1, is characterized in that, described brush lead is copper soft whipping wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324162.0U CN205070123U (en) | 2015-05-19 | 2015-05-19 | Trapezoidal seat carbon brush for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324162.0U CN205070123U (en) | 2015-05-19 | 2015-05-19 | Trapezoidal seat carbon brush for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070123U true CN205070123U (en) | 2016-03-02 |
Family
ID=55396632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520324162.0U Active CN205070123U (en) | 2015-05-19 | 2015-05-19 | Trapezoidal seat carbon brush for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205070123U (en) |
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2015
- 2015-05-19 CN CN201520324162.0U patent/CN205070123U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200428 Address after: Wenzhou Shuangfeng town Industrial Park Taicang city Suzhou city Jiangsu province 215416 Patentee after: SUZHOU DONEKA NEW MATERIALS CORP. Ltd. Address before: Wenzhou Shuangfeng town Industrial Park Taicang city Suzhou city Jiangsu province 215415 Patentee before: SUZHOU DONON CARBON WARE Co.,Ltd. |