CN106130298A - High life direct current generator - Google Patents
High life direct current generator Download PDFInfo
- Publication number
- CN106130298A CN106130298A CN201610747848.XA CN201610747848A CN106130298A CN 106130298 A CN106130298 A CN 106130298A CN 201610747848 A CN201610747848 A CN 201610747848A CN 106130298 A CN106130298 A CN 106130298A
- Authority
- CN
- China
- Prior art keywords
- brush
- electric machine
- machine casing
- push rod
- 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
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses high life direct current generator, including electric machine casing, the stator component being located in electric machine casing, rotor part and circuit board assemblies, fixing connection front and rear cover before and after electric machine casing, 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, it is characterized in that: brush-box makees radially movable setting on the surface of circuit board assemblies, the rear end of brush-box 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 screwed hole 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 high life direct current generator in service life.
The present invention has adopted the following technical scheme that:
High life direct current generator, the stator component including electric machine casing, being located in electric machine casing, rotor part and circuit board
Assembly, fixing connection front and rear cover before and after electric machine casing, rotor part includes armature spindle and is installed on the whole of armature spindle rear end
Stream, 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 its feature exists
In: brush-box makees radially movable setting on the surface of circuit board assemblies, and the rear end of brush-box offsets with plastics push rod, plastics push rod
Being screwed on electric machine casing, the shell wall of electric machine casing is provided with the screwed hole 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), brush-box 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, makes brush holder spring again be compressed, provides suitable spring pressure for carbon brush
Power, then carbon brush remains suitable with the contact pressure of commutator surface；Owing to the length of carbon brush can be longer, add carbon brush
, carbon brush abrasion speed little with the contact pressure of commutator surface is 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 brush-box to carry out promoting is: plastics push rod when being threaded into hole, its plastics 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 screwed hole
Gap, and then make to be formed between plastics push rod and screwed hole to seal vacuum state, produce powerful between plastics push rod and screwed hole
Anti-loosening locking power, prevent the loosening return of brush-box.
[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 10, 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 11 that connects in rear end, rear bearing 12 is installed in rear end cap 11, 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 9 to be supported, and carbon brush 9 and brush holder spring 8 are movably arranged at carbon
In brush box 6, brush-box 6 makees radially movable setting, the rear end of brush-box 6 and plastics push rod 7 phase on the surface of circuit board assemblies 10
Supporting, plastics push rod 7 is screwed on electric machine casing 4, and the shell wall of electric machine casing 4 is provided with the screwed hole of corresponding plastics push rod 7；Mould
Material push rod 7 includes bar portion 71 and tightens head 73, and bar portion 71 is polished rod cylindrical, the big footpath of the external diameter matching threaded hole in bar portion 71,
The outer round surface circumference in bar portion 71 lays longitudinal breach 72.
Claims (2)
1. high life direct current generator, the stator component including electric machine casing, being located in electric machine casing, rotor part and circuit board group
Part, fixing connection front and rear cover before and after electric machine casing, rotor part includes armature spindle and is installed on the rectification of armature spindle rear end
Son, 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, it is characterised in that:
Brush-box makees radially movable setting on the surface of circuit board assemblies, and the rear end of brush-box offsets with plastics push rod, plastics push rod spiral shell
Stricture of vagina is tightened on electric machine casing, and the shell wall of electric machine casing is provided with the screwed hole of corresponding plastics push rod.
2. high life direct current generator as claimed in claim 1, it is characterised in that: the bar portion of plastics push rod is polished rod cylindrical, bar
The big footpath of the external diameter matching threaded hole in portion, the outer round surface circumference in bar portion lays longitudinal breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747848.XA CN106130298A (en) | 2016-08-26 | 2016-08-26 | High life direct current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747848.XA CN106130298A (en) | 2016-08-26 | 2016-08-26 | High life direct current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106130298A true CN106130298A (en) | 2016-11-16 |
Family
ID=57273475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610747848.XA Pending CN106130298A (en) | 2016-08-26 | 2016-08-26 | High life direct current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106130298A (en) |
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 |
| CN206117459U (en) * | 2016-08-26 | 2017-04-19 | 蔡蔚珍 | Direct current motor |
-
2016
- 2016-08-26 CN CN201610747848.XA patent/CN106130298A/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 |
| CN206117459U (en) * | 2016-08-26 | 2017-04-19 | 蔡蔚珍 | Direct current motor |
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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 |
Application publication date: 20161116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |