CN106160309A - High service life direct current generator - Google Patents
High service life direct current generator Download PDFInfo
- Publication number
- CN106160309A CN106160309A CN201610747880.8A CN201610747880A CN106160309A CN 106160309 A CN106160309 A CN 106160309A CN 201610747880 A CN201610747880 A CN 201610747880A CN 106160309 A CN106160309 A CN 106160309A
- Authority
- CN
- China
- Prior art keywords
- brush
- electric machine
- machine casing
- regulating plate
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses direct current generator in high service life, including electric machine casing, the stator component being located in electric machine casing, rotor part and circuit board assemblies, rotor part includes armature spindle and is installed on the commutator of armature spindle rear end, the periphery of commutator is moving phase with carbon brush to be supported, carbon brush and brush holder spring are movably arranged in brush-box, brush-box fixedly mounts on the surface of circuit board assemblies, it is characterized in that: the afterbody of brush-box is provided with movable regulating plate, movable regulating plate is made radially movable in brush-box, the medial surface of movable regulating plate offsets with brush holder spring, the lateral surface of movable regulating plate offsets with plastics push rod, plastics push rod is screwed on electric machine casing, the shell wall of electric machine casing is provided with the screw thread of corresponding plastics push rod；The bar portion of plastics push rod is polished rod cylindrical, the big footpath of the external diameter matching threaded hole in bar portion, and the outer round surface circumference in bar portion lays longitudinal breach.The present invention can be greatly prolonged the wearing-in period of carbon brush, improves motor service life.
Description
[technical field]
The present invention relates to the improvement invention of a kind of direct current generator.
[background technology]
Direct current generator is according to having non-carbonate brushed DC motor and the brshless DC motor of being divided into, the carbon brush of brushed DC motor
It is pressed into contact with commutator surface under the effect of brush holder spring.Owing to carbon brush is prone to wear out, so motor to be improved uses the longevity
Life, to be designed longer of the length of carbon brush, and this most directly have compressed the installation space of brush holder spring；Brush holder spring sky is set
Between little, also to ensure carbon brush abrasion later stage be carbon brush provide suitable spring pressure, this is accomplished by brush holder spring and arranges sky
In brush holder spring to have the biggest decrement, decrement the most then initial tension of spring is big, can cause in work process carbon brush with
Commutator surface has the biggest contact pressure, and causes carbon brush to cross quick-wearing, same reduces motor service life, and whole mistake
In journey, carbon brush changes greatly with the contact pressure of commutator surface, is unfavorable for the properly functioning of motor；Therefore, carbon brush during design of electrical motor
Length will rationally shorten to reserve the installation space of enough brush holder springs, carbon brush length short then motor is short for service life.
[summary of the invention]
The deficiency existed for prior art, when it is an object of the invention to provide a kind of abrasion being greatly prolonged carbon brush
Between, improve the direct current generator in high service life in service life.
The present invention has adopted the following technical scheme that:
High service life direct current generator, the stator component including electric machine casing, being located in electric machine casing, rotor part and electricity
Road board component, fixing connection front and rear cover before and after electric machine casing, rotor part includes armature spindle and is installed on armature spindle rear end
Commutator, the periphery of commutator is moving phase with carbon brush to be supported, and carbon brush and brush holder spring are movably arranged in brush-box, brush-box
Fixedly mount on the surface of circuit board assemblies, it is characterised in that: the afterbody of brush-box is provided with movable regulating plate, and movable regulating plate exists
Making radially movable in brush-box, the medial surface of movable regulating plate offsets with brush holder spring, the lateral surface of movable regulating plate and plastics
Push rod offsets, and plastics push rod is screwed on electric machine casing, and the shell wall of electric machine casing is provided with the screw thread of corresponding plastics push rod.
Use after technique scheme, can design longer of the length of carbon brush and the installation space of brush holder spring can be more
Little, the decrement of brush holder spring, initial tension of spring are also not required to very big, (the most whole abrasion when carbon brush abrasion reaches a certain amount of
/ 3rd of length), movable regulating plate can be promoted to make brush holder spring move to commutator direction by tightening plastics push rod,
Eliminate the amount of spring compression change that carbon brush produces due to abrasion, make brush holder spring again be compressed, provide suitable bullet for carbon brush
Spring pressure, then carbon brush remains suitable with the contact pressure of commutator surface；Owing to the length of carbon brush can be longer, add
The contact pressure of carbon brush and commutator surface is little, carbon brush abrasion speed slow, it is possible to be greatly improved motor service life.
As preferably, the bar portion of plastics push rod is polished rod cylindrical, and the big footpath of the external diameter matching threaded hole in bar portion, outside bar portion
Circular surfaces circumference lays longitudinal breach.
The advantage utilizing plastic top pole pair movable regulating plate to carry out promoting is: plastics push rod is when being threaded into hole, and it is moulded
Material material can be by the crimp of screwed hole, and the plastic material of crimp not only enters longitudinal breach and fills up whole spiral shell
Pit gap, and then make to be formed between plastics push rod and screwed hole to seal vacuum state, produce between plastics push rod and screwed hole
Powerful anti-loosening locking power, prevents the loosening return of movable regulating plate.
[accompanying drawing explanation]
The present invention has a drawings described below:
Fig. 1 is the structural representation of the present invention.
[detailed description of the invention]
As it can be seen, the high life direct current generator of the present invention, including electric machine casing 4, the stator department be located in electric machine casing 4
Part, rotor part and circuit board assemblies 11, the fixing drive end bearing bracket 3 that connects in the front end of electric machine casing 4, fore bearing is installed in drive end bearing bracket 3
2, the fixing rear end cap 12 that connects in rear end, rear bearing 13 is installed in rear end cap 12, rotor part includes armature spindle 1 and is installed on rotor
The commutator 5 of axle 1 rear end, the periphery of commutator 5 is moving phase with carbon brush 10 to be supported, and carbon brush 10 and brush holder spring 9 are movably arranged at
In brush-box 6, brush-box 6 fixedly mounts on the surface of circuit board assemblies 11, and the afterbody of brush-box 6 is provided with movable regulating plate 7, lives
Dynamic adjustable plate 7 is made radially movable in brush-box 6, and the medial surface of movable regulating plate 7 offsets with brush holder spring 9, movable regulating plate 7
Lateral surface offset with plastics push rod 8, plastics push rod 8 is screwed on electric machine casing 4, and it is right that the shell wall of electric machine casing 4 is provided with
Answer the screwed hole of plastics push rod 8；Plastics push rod 8 includes bar portion 81 and tightens head 83, and bar portion 81 is polished rod cylindrical, bar portion 81
The big footpath of external diameter matching threaded hole, the outer round surface circumference in bar portion 81 lays longitudinal breach 82.
Claims (2)
- The highest service life direct current generator, the stator component including electric machine casing, being located in electric machine casing, rotor part and circuit Board component, fixing connection front and rear cover before and after electric machine casing, rotor part includes armature spindle and is installed on armature spindle rear end Commutator, the periphery of commutator is moving phase with carbon brush to be supported, and carbon brush and brush holder spring are movably arranged in brush-box, and brush-box exists The surface fixed installation of circuit board assemblies, it is characterised in that: the afterbody of brush-box is provided with movable regulating plate, and movable regulating plate is at carbon Making radially movable in brush box, the medial surface of movable regulating plate offsets with brush holder spring, the lateral surface of movable regulating plate and plastic top Bar offsets, and plastics push rod is screwed on electric machine casing, and the shell wall of electric machine casing is provided with the screw thread of corresponding plastics push rod.
- High service life the most as claimed in claim 1 direct current generator, it is characterised in that: the bar portion of plastics push rod is outside polished rod Circle, the big footpath of the external diameter matching threaded hole in bar portion, the outer round surface circumference in bar portion lays longitudinal breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747880.8A CN106160309A (en) | 2016-08-26 | 2016-08-26 | High service life direct current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747880.8A CN106160309A (en) | 2016-08-26 | 2016-08-26 | High service life direct current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106160309A true CN106160309A (en) | 2016-11-23 |
Family
ID=57345048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610747880.8A Pending CN106160309A (en) | 2016-08-26 | 2016-08-26 | High service life direct current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106160309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877613A (en) * | 2017-04-07 | 2017-06-20 | 浙江正田电机制造有限公司 | Automobile current generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203289297U (en) * | 2013-04-27 | 2013-11-13 | 江苏常意电机科技有限公司 | Brush built-in direct-current motor |
| CN203813607U (en) * | 2014-04-16 | 2014-09-03 | 常州锝莱电机有限公司 | Direct current micromotor |
| CN203896124U (en) * | 2014-06-17 | 2014-10-22 | 浙江瑞申汽配有限公司 | Automobile starter brush assembly with contact force adjustable brushes |
| CN204696039U (en) * | 2015-06-26 | 2015-10-07 | 贵州新安航空机械有限责任公司 | A kind of anti-deformation moves iron core press-fit structure |
| CN206117378U (en) * | 2016-08-26 | 2017-04-19 | 蔡蔚珍 | Continuous current motor |
-
2016
- 2016-08-26 CN CN201610747880.8A patent/CN106160309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203289297U (en) * | 2013-04-27 | 2013-11-13 | 江苏常意电机科技有限公司 | Brush built-in direct-current motor |
| CN203813607U (en) * | 2014-04-16 | 2014-09-03 | 常州锝莱电机有限公司 | Direct current micromotor |
| CN203896124U (en) * | 2014-06-17 | 2014-10-22 | 浙江瑞申汽配有限公司 | Automobile starter brush assembly with contact force adjustable brushes |
| CN204696039U (en) * | 2015-06-26 | 2015-10-07 | 贵州新安航空机械有限责任公司 | A kind of anti-deformation moves iron core press-fit structure |
| CN206117378U (en) * | 2016-08-26 | 2017-04-19 | 蔡蔚珍 | Continuous current motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877613A (en) * | 2017-04-07 | 2017-06-20 | 浙江正田电机制造有限公司 | Automobile current generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |