CN1510799A - Rolling commutator of motor - Google Patents
Rolling commutator of motor Download PDFInfo
- Publication number
- CN1510799A CN1510799A CNA021600546A CN02160054A CN1510799A CN 1510799 A CN1510799 A CN 1510799A CN A021600546 A CNA021600546 A CN A021600546A CN 02160054 A CN02160054 A CN 02160054A CN 1510799 A CN1510799 A CN 1510799A
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- CN
- China
- Prior art keywords
- motor
- commutator
- rolling
- brush
- commutation
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- 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.)
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Abstract
A motor rolling commutator, it is rolling friction between brush and commutator for this new type motor rolling commutator, namely the joint part between the brush and commutator is relatively still, so this motor rolling commutator has less wear and less electric spark, especially adapts to the brush motor to improve its lifetime, reliability, efficiency. By the proof of experiment, the lifetime of this motor rolling commutator is more than 10000 hours, can promote the efficiency of brush motor more than 10%.
Description
Motor slip commutator in the past has following shortcoming: promptly because brush exists the very big sliding friction of relative linear velocity with commutation between the son, caused wear of brush soon, the sub-quick abrasion that commutates, had a strong impact on life-span, reliability and the economy of brush motor; All the time the electric spark that exists between brush and commutation when motor moves in addition causes the extraneoas loss of a large amount of electric energy, thereby greatly reduces the efficient of brush motor, and the range of application of brush motor is restricted.The present invention relates to a kind of motor rolling commutator, between the brush of this New-type electric machine commutator and commutation is rolling friction, be that brush is relative static with the binding site that commutates between the son, therefore these motor rolling commutator wearing and tearing are little, electric spark is also little, is particularly suitable for brush motor to improve its life-span, reliability, economy and efficient.Prove that through specific embodiment the life-span of this motor rolling commutator can make the efficient of brush motor improve more than 10% greater than 10000 hours.The present invention has broad application prospects.
Technical scheme of the present invention is:
Motor rolling commutator is made up of roller brushes and commutation, and roller brushes contacts with commutation at suitable pressures, does not almost have relative motion between roller brushes and commutation when motor rotates.Roller brushes is made up of graphite roller, carriage, spring, lead access terminal etc.Commutation can adopt various radially commutation of common brushed motor.
The present invention has the following advantages:
1) life-span is long.
2) electric spark is little.
3) efficient height.
4) can be used for various brush motors easily.
Further specify specific structural features of the present invention below in conjunction with Figure of description and embodiment.
Brief Description Of Drawings:
Fig. 1, Fig. 2 are the overall installation diagrams of motor rolling commutator of the present invention, and Fig. 1 is the roller brushes outer-installed type, and Fig. 2 is the roller brushes built in type.1 is the support leaf spring of roller brushes among Fig. 1 and Fig. 2, and it is fixed on the motor housing, and it plays the effect of supporting roller brushes; The 2nd, roller brushes, it passes to commutation to electric current; The 3rd, commutation, it links to each other with machine winding coil.
Fig. 3 is the assembling schematic diagram of the roller brushes of motor rolling commutator of the present invention.4 is leads among Fig. 3; The 5th, carriage; The 6th, spring; The 7th, the graphite rolling wheel support; The 8th, the graphite roller.
Operation principle of the present invention is:
As shown in Figure 1 to Figure 3, the electric current of power supply passes to graphite roller 8 by lead 4 and graphite rolling wheel support 7, graphite roller 8 contacts with commutation 3 and electric current is passed to an end of motor coil, and the electric current that flows out coil turns back to power supply by another relative roller brushes.Drive 8 rotations of graphite roller with commutation 3 of rotor rotation synchronously by friction, almost do not have relative motion between them.Relative motion occurs between graphite roller 8 and the graphite rolling wheel support 7, and the linear velocity of this relative motion is much smaller than the linear velocity between general motor slip commutator brush and commutation.
Claims (3)
1. a motor rolling commutator is made up of roller brushes and commutation, and roller brushes contacts with commutation under the pressure of leaf spring.
2. a kind of motor rolling commutator according to claim 1 is characterized in that: roller brushes and commutation cut-grafting in addition touch, also can the inscribe contact.
3. a kind of motor rolling commutator according to claim 1 is characterized in that: roller brushes is made up of graphite roller 8, graphite rolling wheel support 7, spring 6, carriage 5, access lead 4 etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021600546A CN1510799A (en) | 2002-12-25 | 2002-12-25 | Rolling commutator of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021600546A CN1510799A (en) | 2002-12-25 | 2002-12-25 | Rolling commutator of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1510799A true CN1510799A (en) | 2004-07-07 |
Family
ID=34237739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021600546A Pending CN1510799A (en) | 2002-12-25 | 2002-12-25 | Rolling commutator of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1510799A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005864A (en) * | 2010-11-30 | 2011-04-06 | 中国计量学院 | Series excited motor with reverser |
| CN112072861A (en) * | 2020-08-24 | 2020-12-11 | 清华大学 | Device for supplying power to moving circuit in contact mode |
-
2002
- 2002-12-25 CN CNA021600546A patent/CN1510799A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005864A (en) * | 2010-11-30 | 2011-04-06 | 中国计量学院 | Series excited motor with reverser |
| CN102005864B (en) * | 2010-11-30 | 2012-08-01 | 中国计量学院 | Series excited motor with reverser |
| CN112072861A (en) * | 2020-08-24 | 2020-12-11 | 清华大学 | Device for supplying power to moving circuit in contact mode |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |