CN1614832A - Electromagnetic electric brushes - Google Patents
Electromagnetic electric brushes Download PDFInfo
- Publication number
- CN1614832A CN1614832A CN 200410101046 CN200410101046A CN1614832A CN 1614832 A CN1614832 A CN 1614832A CN 200410101046 CN200410101046 CN 200410101046 CN 200410101046 A CN200410101046 A CN 200410101046A CN 1614832 A CN1614832 A CN 1614832A
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- China
- Prior art keywords
- brush
- iron core
- unshakable
- determination
- fixed
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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
The invention includes brush bar shoe and brush. The permanent magnet steel or fixed iron core is set on the one end of the brush bar shoe. The brush is set on the other side of the brush bar shoe. A sliding iron core is set between the permanent steel or fixed iron core and the brush. The sliding iron core combines the brush in one unity. The magnet coil around the sliding iron core or the magnet coil around the sliding iron core and fixed iron core is set on corresponding place on the circumferential of brush bar shoe. After excitation, the direction of magnet pole of sliding iron core and fixed iron core is same.
Description
Technical field the invention belongs to the brush that a kind of machine field uses, specifically a kind of disengaging type electromagnetic electric brushes.
Background technology is present, and what existing various brush motors adopted all is traditional type commutator and brush, and also pressing a spring, purpose on brush is that brush and commutator face have excellent contact when guaranteeing that armature rotates.Exactly because the long-term Continuous Contact work of brush motor commutator and brush causes it easy to wear, useful life is short, poor reliability, and then the use field of having limited brush motor.
Summary of the invention the object of the present invention is to provide a kind of disengaging type electromagnetic electric brushes, and promptly when machine operation, brush contacts conduction with commutator; When need not machine operation, commutator separates with brush, and brush motor is easy to wear, useful life short, this technical problem of poor reliability thereby solved.
For achieving the above object, the technical scheme that the present invention takes is: this electromagnetic electric brushes comprises brush fixed mount and brush, it is characterized in that described brush fixed mount one end is provided with permanent-magnet steel or fixed iron core, the brush fixed mount other end is provided with brush, it is unshakable in one's determination to establish a slip between permanent-magnet steel or fixed iron core and the brush, the iron core that slides is connected as a single entity with brush, brush fixed mount periphery corresponding position is wound with the solenoid of described slide solenoid unshakable in one's determination or slide unshakable in one's determination and fixed iron core, and the slip after the excitation is unshakable in one's determination identical with the pole orientation of fixed iron core.
When machine operation, the solenoid energized is slided unshakable in one's determination and permanent-magnet steel or fixed iron core contact jaw generation like pole, and it is unshakable in one's determination under the effect of like pole repulsion to slide, and promotes brush and contacts work with commutator; When need not machine operation, the solenoid power supply disconnects, and the magnetic force unshakable in one's determination that slides disappears, and slides the brush that drives unshakable in one's determination under permanent-magnet steel or fixed iron core suction, and brush is separated with commutator.
This electromagnetic electric brushes has reduced the wearing and tearing probability of brush and commutator, has prolonged the useful life of brush and commutator greatly, stable and reliable working performance.Adopt this electromagnetic electric brushes, overcome the shortcoming of brush motor, thereby make the permanent magnet brush motor bring into play its high efficiency, advantage cheaply better, further enlarge the scope of application of brush motor, have brush starting/generator to create condition at automotive field for realizing especially.
Description of drawings Fig. 1 is the structural representation of solenoid embodiment one
Fig. 2 is the structural representation of solenoid embodiment two
Among the figure: the 1-rotor; The 2-solenoid unshakable in one's determination that slides; 3-brush fixed mount; The 4-permanent-magnet steel; 5-slides unshakable in one's determination; The 6-brush; The 7-commutator; 8-fixed iron core solenoid; The 9-fixed iron core.
As shown in Figure 1, the brush fixed mount 3 of this electromagnetic electric brushes is provided with permanent-magnet steel 4 away from an end of commutator 7, the other end of brush fixed mount 3 inserts brush 6, establish one between permanent-magnet steel 4 and the brush 6 and slide unshakable in one's determination 5, the iron core 5 that slides is connected as a single entity with brush 6, and the periphery opposite position place of brush fixed mount 3 is wound with the solenoid 2 of the iron core 5 that slides.
As shown in Figure 2, the brush fixed mount 3 of this electromagnetic electric brushes is provided with fixed iron core 9 away from an end of commutator 7, the other end of brush fixed mount 3 inserts brush 6, establish one between permanent-magnet steel 4 and the brush 6 and slide unshakable in one's determination 5, the iron core 5 that slides is connected as a single entity with brush 6, the periphery corresponding position of brush fixed mount 3 is wound with the solenoid 2 and 8 of slide iron core 5 and fixed iron core 9, and the slip after the excitation unshakable in one's determination 5 is identical with the pole orientation of fixed iron core 9.
Claims (1)
1, a kind of electromagnetic electric brushes, comprise brush fixed mount (3) and brush (6), it is characterized in that described brush fixed mount (3) one ends are provided with permanent-magnet steel (4) or fixed iron core (9), brush fixed mount (3) other end is installed brush (6), establish a slip (5) unshakable in one's determination between permanent-magnet steel (4) or fixed iron core (9) and the brush (6), the iron core (5) that slides is connected as a single entity with brush (6), brush fixed mount (3) periphery corresponding position is wound with the solenoid (2 and 8) of the solenoid (2) of described slide (5) unshakable in one's determination or slide (5) unshakable in one's determination and fixed iron core (9), and the slip iron core (5) after the excitation is identical with the pole orientation of fixed iron core (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410101046 CN1614832A (en) | 2004-12-06 | 2004-12-06 | Electromagnetic electric brushes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410101046 CN1614832A (en) | 2004-12-06 | 2004-12-06 | Electromagnetic electric brushes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1614832A true CN1614832A (en) | 2005-05-11 |
Family
ID=34766738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410101046 Pending CN1614832A (en) | 2004-12-06 | 2004-12-06 | Electromagnetic electric brushes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1614832A (en) |
-
2004
- 2004-12-06 CN CN 200410101046 patent/CN1614832A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |