CN105281172A - Carbon brush assembly for motor - Google Patents
Carbon brush assembly for motor Download PDFInfo
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- CN105281172A CN105281172A CN201410254117.2A CN201410254117A CN105281172A CN 105281172 A CN105281172 A CN 105281172A CN 201410254117 A CN201410254117 A CN 201410254117A CN 105281172 A CN105281172 A CN 105281172A
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- carbon brush
- brush
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- motor
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Abstract
The invention relates to a carbon brush assembly for a motor. The carbon brush assembly comprises carbon brush plates, a carbon brush box, carbon brushes, volute springs and a carbon brush holder; the carbon brush box is of a groove structure; the outer end of the carbon brush box bridges the junctions of the carbon brush holder and the carbon brush plates, so that the length of the carbon brush box and the carbon brushes can be effectively increased; the volute springs are installed at the exterior of the carbon brush box and fixed to rivets through welding; the extension ends of the volute springs abut against the outer wall of the carbon brush box and extend into the carbon brush box from the outer end of the carbon brush box; and the torque ends of the volute springs are located in the carbon brush box and contact with the outer ends of the carbon brushes. With the above structure adopted, the inner spaces of the carbon brushes can be increased, the use length of the carbon brushes can be effectively increased, and the service life of the motor can be prolonged. The carbon brush assembly of the invention has the advantages of simple structure, excellent heat radiating performance, constant thrust of the carbon brushes, excellent contact between the carbon brushes and a commutator, high use efficiency of the carbon brushes and long service life.
Description
Technical field
The present invention relates to technical field of motors, be specifically related to a kind of carbon brush component for motor.
Background technology
Brush motor includes converting electric energy to mechanical energy or mechanical energy being converted to the electric rotating machine of electric energy of carbon brush configuration.It is the basis of all motors, have start fast, braking in time, can the features such as stepless speed control on a large scale, control circuit be relatively simple, be widely used in the product such as electric motor car, electronic radiation fan.Traditional brush motor many employings cylindrical compression spring, uses the initial stage at motor, the spring contraction distortion when being subject to external applied load, and store deformation energy, when amount of spring compression is maximum, active force is bigger than normal, causes carbon brush abrasion too fast; And to using latter stage, often because active force is less than normal, unable promotion carbon brush and cause carbon brush loose contact or cannot contact, objectively causes electrical machinery life limited.Chinese patent CN203180284U discloses a kind of carbon brush component of brush motor, the carbon brush component of this motor includes at least two cover constant force assemblies, in brush carrier bilateral symmetry, supporting bracket is set, carbon brush slides in brush carrier, the connecting portion of constant force spring is pressed on the afterbody of carbon brush, and brush carrier extends and against on the supporting plate in two reel portions of constant force spring.This utility model can use carbon brush to greatest extent, improves the useful life of carbon brush.But this technology need set up special supporting bracket at motor internal, takies motor internal space, makes internal structure of motor more closely knit, product heat-sinking capability is caused to reduce, if in use supporting bracket fracture, can cause motor normally to work, affect the quality of product simultaneously.
Summary of the invention
The invention provides a kind of carbon brush component for motor for above-mentioned technical problem, this modular construction be simple, perfect heat-dissipating, carbon brush constant propulsion, carbon brush contacts with commutator well, and carbon brush service efficiency is high, long service life.
For achieving the above object, concrete technical scheme provided by the invention is as follows:
A kind of carbon brush component for motor, comprise carbon brush plate 3, brush-box 4, carbon brush 5, vortex ring spring 7, carbon brush holder 9, it is characterized in that described brush-box 4 is trench structure, described carbon brush 5 is arranged in carbon brush groove, carbon brush plate 3 supports carbon brush holder 9, carbon brush and brush-box are positioned on carbon brush holder, and the junction of carbon brush holder 9 and carbon brush plate 3 is crossed in brush-box 4 outer end; Described vortex ring spring 7 comprises installation end 7a, extended end 7b, moment of torsion end 7c, it is outside that installation end 7a is positioned at brush-box 4, be welded and fixed with rivet 6, stiff end 7a is connected with extended end 7b, and extended end 7b is close to brush-box outer wall and penetrates brush-box 4 from outer end and be connected with moment of torsion end 7c, moment of torsion end 7c is positioned at brush-box inside, contacts with carbon brush outer end.
Concrete, vortex ring spring fitting end end points welds with two rivets, two rivet clamping vortex ring spring fitting end end points.
Concrete, the junction of carbon brush holder 9 and carbon brush plate 3 is crossed in brush-box 4 outer end, and brush-box 4 outer end 1/4 part is positioned on carbon brush plate 3, and inner 3/4 part is positioned on carbon brush holder.
Concrete, described carbon brush component is provided with four carbon brush altogether, arranges in right-angled intersection, each brush-box outer wall place arranges metallic channel 2, metallic channel 2 is connected with anode power cord 8a, and cathode power supply line 8b and anode power cord are set up in parallel, and two power lines draw carbon brush component by outlet gum cover 1.
Beneficial effect of the present invention is: a kind of carbon brush for electric machine assembly of the present invention, vortex ring spring fitting end is arranged on brush-box outside, do not occupy the space of brush-box, so brush-box space can be utilized to greatest extent to lengthen carbon brush, to reach the effect increasing electrical machinery life.Meanwhile, brush-box outer end 1/4 part be arranged on carbon brush plate (3), inner 3/4 part is arranged on carbon brush holder, effectively increases the length of brush-box, further increases the use length of carbon brush, improves electrical machinery life.The present invention adopts vortex ring spring to provide constant force, can according to the requirement of designer, the whole process used at motor provides constant a, active force accurately, avoid the phenomenon of extension spring this " tight at first but afterwards loose ", greatly can increase electrical machinery life, reduce the generation of spark, effectively suppress electromagnetic interference, promote Electro Magnetic Compatibility.Meanwhile, vortex ring spring fitting end is installed on brush-box outside, makes between each parts, to combine firmly leakiness, improve the heat dispersion of motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1.
In figure, the implication of each numbering is: 1-outlet gum cover, 2-metallic channel, 3-carbon brush plate, 4-carbon brush groove, 5-carbon brush, 6-rivet, 7-vortex ring spring, 7a-vortex ring spring fitting end, 7b-vortex ring spring stretches end, 7c-vortex ring spring torque end, 8a-cathode power supply line, 8b-anode power cord, 9-carbon brush holder.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
A kind of carbon brush component for motor, as shown in Figure 1, comprise carbon brush plate 3, brush-box 4, carbon brush 5, vortex ring spring 7, carbon brush holder 9, wherein brush-box 4 is trench structure, and carbon brush 5 is arranged in carbon brush groove, can under the effect of vortex ring spring again, with commutator close contact, when after its wearing and tearing, vortex ring spring promotes carbon brush and moves forward, and the useful life of motor is extended.Carbon brush plate 3 supports carbon brush holder 9, and carbon brush and brush-box are positioned on carbon brush holder, and the junction of carbon brush holder 9 and carbon brush plate 3 is crossed in brush-box 4 outer end, and brush-box 4 outer end 1/4 part is positioned on carbon brush plate 3, and inner 3/4 part is positioned on carbon brush holder.This design extends the length of brush-box, and its open ended carbon brush length is increased.Vortex ring spring 7 comprises installation end 7a, extended end 7b, moment of torsion end 7c, wherein installation end 7a is positioned at brush-box 4 outside, be welded and fixed with rivet 6, stiff end 7a is connected with extended end 7b, extended end 7b is close to brush-box outer wall and penetrates brush-box 4 from outer end and be connected with moment of torsion end 7c, moment of torsion end 7c is positioned at brush-box inside, contacts with carbon brush outer end.This design increases brush-box inner space, can extend carbon brush length.Vortex ring spring fitting end and two rivets are welded and fixed, rivet clamping vortex ring spring fitting end end points, make to install more to be fixed, extended end and brush-box outer wall are pressed close to, and motor internal space is increased, and structure is simple, between each parts, space is large, causes heat easily to scatter and disappear.This carbon brush component is provided with four carbon brush altogether, arrange in right-angled intersection, each brush-box outer wall place arranges metallic channel 2, and metallic channel 2 is connected with anode power cord 8a, cathode power supply line 8b and anode power cord are set up in parallel, and two power lines draw carbon brush component by outlet gum cover 1.
In use, after the continuous wearing and tearing of carbon brush, extending part is become moment of torsion end for carbon brush by vortex ring spring gradually provides constant thrust, within the useful life period of carbon brush, make to remain good contact between carbon brush and commutator, can carbon brush be maximally utilised, improve the useful life of carbon brush; Meanwhile, because carbon brush bears constant thrust all the time in operation process, the generation of spark can be reduced, effectively suppress electromagnetic interference, Electro Magnetic Compatibility is got a promotion.
Claims (4)
1. the carbon brush component for motor, comprise carbon brush plate (3), brush-box (4), carbon brush (5), vortex ring spring (7), carbon brush holder (9), it is characterized in that described brush-box (4) is trench structure, described carbon brush (5) is arranged in carbon brush groove, carbon brush plate (3) supports carbon brush holder (9), carbon brush and brush-box are positioned on carbon brush holder, and the junction of carbon brush holder (9) and carbon brush plate (3) is crossed in brush-box (4) outer end; Described vortex ring spring (7) comprises installation end (7a), extended end (7b), moment of torsion end (7c), it is outside that installation end (7a) is positioned at brush-box (4), be welded and fixed with rivet (6), stiff end (7a) is connected with extended end (7b), extended end (7b) is close to brush-box outer wall and is penetrated brush-box (4) from outer end and be connected with moment of torsion end (7c), moment of torsion end (7c) is positioned at brush-box inside, contacts with carbon brush outer end.
2. a kind of carbon brush component for motor as claimed in claim 1, is characterized in that described vortex ring spring fitting end breakpoint welds with two rivets, two rivets clamping vortex ring spring fitting end end points.
3. a kind of carbon brush component for motor as claimed in claim 1, it is characterized in that the junction of carbon brush holder (9) and carbon brush plate (3) is crossed in described brush-box (4) outer end, brush-box (4) outer end 1/4 part is positioned on carbon brush plate (3), and inner 3/4 part is positioned on carbon brush holder.
4. a kind of carbon brush component for motor as claimed in claim 1, it is characterized in that described carbon brush component is provided with four carbon brush altogether, arrange in right-angled intersection, each brush-box outer wall place arranges metallic channel (2), metallic channel (2) is connected with anode power cord (8a), cathode power supply line (8b) and anode power cord are set up in parallel, and two power lines draw carbon brush component by outlet gum cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254117.2A CN105281172A (en) | 2014-06-07 | 2014-06-07 | Carbon brush assembly for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254117.2A CN105281172A (en) | 2014-06-07 | 2014-06-07 | Carbon brush assembly for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105281172A true CN105281172A (en) | 2016-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410254117.2A Pending CN105281172A (en) | 2014-06-07 | 2014-06-07 | Carbon brush assembly for motor |
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| Country | Link |
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| CN (1) | CN105281172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378942A (en) * | 2018-11-20 | 2019-02-22 | 瑞安市远翔电机制造有限公司 | A kind of rain shaving electrical machine of noise-reduction |
Citations (7)
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|---|---|---|---|---|
| CN2901672Y (en) * | 2006-05-19 | 2007-05-16 | 上海航天汽车机电股份有限公司舒航电器分公司 | DC motor brush frame |
| CN101895165A (en) * | 2009-08-26 | 2010-11-24 | 余姚市爱优特电机有限公司 | Plastic bracket structure of quadrupole motor |
| WO2010145743A3 (en) * | 2009-06-18 | 2011-08-11 | Metabowerke Gmbh | Electric hand tool device having brushes |
| CN201994759U (en) * | 2011-03-18 | 2011-09-28 | 余姚市爱优特电机有限公司 | Replaceable carbon brush structure for carbon brush motor |
| CN102651587A (en) * | 2011-02-25 | 2012-08-29 | 德昌电机(深圳)有限公司 | Engine cooling system, cooling module and motor |
| CN202840891U (en) * | 2012-09-27 | 2013-03-27 | 余姚市爱优特电机有限公司 | Motor structure bearing high overload |
| CN203883292U (en) * | 2014-06-07 | 2014-10-15 | 杨浩 | Carbon brush assembly used for motor |
-
2014
- 2014-06-07 CN CN201410254117.2A patent/CN105281172A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2901672Y (en) * | 2006-05-19 | 2007-05-16 | 上海航天汽车机电股份有限公司舒航电器分公司 | DC motor brush frame |
| WO2010145743A3 (en) * | 2009-06-18 | 2011-08-11 | Metabowerke Gmbh | Electric hand tool device having brushes |
| CN101895165A (en) * | 2009-08-26 | 2010-11-24 | 余姚市爱优特电机有限公司 | Plastic bracket structure of quadrupole motor |
| CN102651587A (en) * | 2011-02-25 | 2012-08-29 | 德昌电机(深圳)有限公司 | Engine cooling system, cooling module and motor |
| CN201994759U (en) * | 2011-03-18 | 2011-09-28 | 余姚市爱优特电机有限公司 | Replaceable carbon brush structure for carbon brush motor |
| CN202840891U (en) * | 2012-09-27 | 2013-03-27 | 余姚市爱优特电机有限公司 | Motor structure bearing high overload |
| CN203883292U (en) * | 2014-06-07 | 2014-10-15 | 杨浩 | Carbon brush assembly used for motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378942A (en) * | 2018-11-20 | 2019-02-22 | 瑞安市远翔电机制造有限公司 | A kind of rain shaving electrical machine of noise-reduction |
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Application publication date: 20160127 |
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