CN2539260Y - Bidirectional magnetic holding electromagnet - Google Patents
Bidirectional magnetic holding electromagnet Download PDFInfo
- Publication number
- CN2539260Y CN2539260Y CN 02206165 CN02206165U CN2539260Y CN 2539260 Y CN2539260 Y CN 2539260Y CN 02206165 CN02206165 CN 02206165 CN 02206165 U CN02206165 U CN 02206165U CN 2539260 Y CN2539260 Y CN 2539260Y
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- permanent magnet
- armature
- magnetic
- utility
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Abstract
The utility model relates to a bidirectional magnetic-retaining electromagnet, which is composed of a magnetic yoke 1, an iron 2, a permanent magnet 3, and electromagnetic coils 4. The electromagnetic coils pass through oriental pulse current in order and the armature performs bidirectional movement. After power-off, the utility model can keep strong magnetic force at two positions. The utility model has the advantages of saving materials, easy manufacture, reliance and endurance, small volume and large magnetic force.
Description
The utility model belongs to the electronic product base components.Can become individual components, also can be combined into one body, as electromagnetically operated valve, contactor, various electromagnetic actuator with other mechanism.
Conventional electromagnet is that unidirectional electrical keeps, energising adhesive, power-off restoration.Retrieve application number; 20223882.9 patented technology the most approaching, also be two-way magnetic-holding electric magnet.Its principle is; Armature under the forward and reverse current magnetization of solenoid, change in polarity.Thereby between four permanent-magnet poles, swing.Its topmost deficiency is; The magnetic direction of solenoid must be opposite with the magnetic direction of permanent-magnet pole, and armature could move.When also promptly commutating, solenoid will demagnetize to permanent magnet.So the magnetic field intensity that solenoid produced can only be much smaller than the coercive field strength of permanent magnet.Otherwise permanent magnet will be lost efficacy by demagnetization very soon.Also be that equal-volume is exerted oneself and seriously restricted.
Target of the present utility model is; Provide that one kind of equal-volume is exerted oneself greatly, succinct easily system, durable reliable two-way magnetic-holding electric magnet.
Target of the present utility model is achieved in that in yoke 1, fixed permanent magnet 3, put into armature 2, form permanent magnet system such as Fig. 1 that three magnetic pole of two shunt is arranged.Solenoid 4, also be fixed on the yoke 1, be positioned at the both sides of permanent magnet 3.Solenoid 4 logical directed pulse currents, the magnetic flux of its generation runs through permanent magnet 3, and identical with the former flow direction of permanent magnet all the time.During commutation, nearly air gap end-coil energising, this end magnetic flux is reinforced, as Fig. 2.Permanent magnet 3, also magnetize saturatedly, the magnetic flux on its pole-face is partial to energising end fully.Armature 2 also is attracted to the energising end simultaneously.Outage back, former energising end permanent magnetism have not had air gap along separate routes, and magnetic resistance diminishes.The magnetic flux that permanent magnet 3 is produced is mainly by this end.Therefore confining force is still very big.That end-coil energising just, armature just relies on that end.And still can powerfully keep after the outage.
The utility model and common electromagnet ratio; Two-way maintenance is no power all, so can economize on electricity in a large number.Energising is only commutating moment, and solenoid generates heat seldom.The ampacity of lead can significantly improve.Therefore with copper economize, volume is little.Yoke, armature also needn't the lamination manufacturings, labor and material saving.With 20223882.9 patented technologies ratio; Electromagnetic field size of the present utility model is not restricted by permanent magnetic field, and equal-volume is exerted oneself and significantly improved.The permanent magnet shape is succinct to be made easily.The armature rectilinear motion, exerting oneself, it is also more convenient to transmit.
Description of drawings is as follows; Permanent magnet magnetic flux distribution signal when Fig. 1 is maintenance.Magnetic flux distribution signal when Fig. 2 is energising.Fig. 3 is the embodiment section.Fig. 4 is that rectangular embodiment is transversal.Fig. 5 is that tubular embodiment is transversal.1 yoke.2 armature.3 permanent magnets.4 solenoids.5 armature shafts.Arrow line is represented magnetic flux and direction.
Embodiment of the present utility model such as Fig. 3 Fig. 4 Fig. 5.Yoke 1 armature 2 is by the permeability magnetic material manufacturing.The yoke anode-cathode distance is; Armature length adds air gap (also being stroke).Permanent magnet 3 is by the permanent magnetic material manufacturing, and through magnetizing.The side that it is fixed on yoke 1 middle part and armature 2 movingly.Two solenoids 4 also are fixed on the yoke 1, are positioned at the both sides of permanent magnet 3.Pass armature 2 in its skeleton hole, also do movingly.The flow direction that solenoid 4 produces is identical with the flow direction of permanent magnet 3.Its magnetic flux is also greater than the former magnetic flux of permanent magnet.Armature shaft 5 usefulness nonmagnetic substances are made.With the axially extending bore of yoke 1 movingly, as guiding.It also is power output shaft.
Claims (3)
1, two-way magnetic-holding electric magnet is made up of yoke, armature, permanent magnet, solenoid, it is characterized in that: respectively there is independently solenoid on the permanent magnet both sides.
2, two-way magnetic-holding electric magnet as claimed in claim 1, it is characterized in that: the magnetic flux that solenoid produced runs through permanent magnet, and the flow direction with permanent magnet is identical all the time.
3, two-way magnetic-holding electric magnet as claimed in claim 1 is characterized in that: respectively independently solenoid is switched on successively, armature commutation motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206165 CN2539260Y (en) | 2002-02-27 | 2002-02-27 | Bidirectional magnetic holding electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206165 CN2539260Y (en) | 2002-02-27 | 2002-02-27 | Bidirectional magnetic holding electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539260Y true CN2539260Y (en) | 2003-03-05 |
Family
ID=33687611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206165 Expired - Fee Related CN2539260Y (en) | 2002-02-27 | 2002-02-27 | Bidirectional magnetic holding electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539260Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013841B (en) * | 2007-02-08 | 2011-01-12 | 浙江大学 | High voltage-resisting bi-directional linear force motor with low-power consumption |
| CN102568742A (en) * | 2012-01-13 | 2012-07-11 | 东莞市沃德电子科技有限公司 | Self-retaining electromagnet |
| CN102856033A (en) * | 2011-06-30 | 2013-01-02 | 上海空间推进研究所 | Bi-directional electromagnetic position-locking device |
| CN106461111A (en) * | 2014-05-16 | 2017-02-22 | 罗伯特·博世有限公司 | Magnet assembly for solenoid valve, and method for producing magnet assembly |
-
2002
- 2002-02-27 CN CN 02206165 patent/CN2539260Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013841B (en) * | 2007-02-08 | 2011-01-12 | 浙江大学 | High voltage-resisting bi-directional linear force motor with low-power consumption |
| CN102856033A (en) * | 2011-06-30 | 2013-01-02 | 上海空间推进研究所 | Bi-directional electromagnetic position-locking device |
| CN102568742A (en) * | 2012-01-13 | 2012-07-11 | 东莞市沃德电子科技有限公司 | Self-retaining electromagnet |
| CN106461111A (en) * | 2014-05-16 | 2017-02-22 | 罗伯特·博世有限公司 | Magnet assembly for solenoid valve, and method for producing magnet assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |