CN201387783Y - Magnetic latching electromagnet device - Google Patents
Magnetic latching electromagnet device Download PDFInfo
- Publication number
- CN201387783Y CN201387783Y CN200920130379U CN200920130379U CN201387783Y CN 201387783 Y CN201387783 Y CN 201387783Y CN 200920130379 U CN200920130379 U CN 200920130379U CN 200920130379 U CN200920130379 U CN 200920130379U CN 201387783 Y CN201387783 Y CN 201387783Y
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- magnetic
- moving iron
- permanent magnet
- conductor
- magnetic conductor
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Abstract
The utility model discloses a magnetic latching electromagnet device which comprises a coil and a moving iron which is arranged in the middle of the coil, and further comprises at least a permanent magnet, a first magnetizer and a second magnetizer, wherein the magnetic field direction of the at least one permanent magnet is parallel to the axial direction of the moving iron, when the moving iron is on the first position, magnetic lines pass through the at least one permanent magnet, the first end of the moving iron and the first magnetic circuit of the first magnetizer in turn, and when the moving iron is on the second position, magnetic lines pass through the at least one permanent magnet, the second end of the moving iron, the second magnetizer and the second magnetic circuit of the first magnetic conduction in turn.
Description
Technical field
The utility model relates to the electric equipment products technical field, particularly relates to a kind of bistable magnetic and keeps electromagnet apparatus.
Background technology
The prior art contactor is meant that utilizing coil to flow through electric current in the industrial electro produces magnetic field, makes contact closure, to reach the electrical equipment of control load.The contact system that contactor comprises the electromagnetic system be made up of unshakable in one's determination, fixed core and solenoid, is made up of normally open contact and normally closed interlock.
The principle of above-mentioned contactor is: after the solenoid energising of contactor, the generation high-intensity magnetic field makes fixed core produce electromagnetic attraction and attracts armature (also claiming moving iron), armature and then the action of drive contact.At this moment normally closed interlock disconnects, the normally open contact closure, and both link.When coil blackout, electromagnetic attraction disappears, and armature discharges under the effect of retracting spring, and contact is restored.At this moment normally closed interlock closure, normally open contact disconnects.
All be to adopt the mode of the long-term galvanization excitation of coil to come the elastic force of antagonistic spring and make state of iron maintenance during the coil working of electrical equipment such as above-mentioned contactor, this can expend more electric energy, produces too much used heat simultaneously, influences environment.
In addition, the permanent magnet technology also is applied in the contactor, mainly is to use permanent magnet in a wherein side of moving iron such as having the more powerful magnetic-holding electric magnets of product such as being used for contactor now, keeps a kind of state when electromagnet is held by permanent magnet.Pass to electric current to magnet spool, make this permanent magnet be in demagnetized state, spring is pushed moving iron open and is remained on by the spring stable status when breaking equilibrium of forces.If moving iron changes the state that is held by permanent magnet again over to when giving rightabout electric current.
But the shortcoming of the scheme of above-mentioned application permanent magnet is: the magnetic to permanent magnetism when the magnetic flux that coil produces is opposite with the magnetic flux of permanent magnet can be influential, and product is easy to be broken at the state that is impacted, keep by spring during such environmental effects such as vibration, makes it change the state that permanent magnet keeps mistakenly over to.
The utility model content
The technical problem that the utility model mainly solves provides a kind of magnetic-holding electric magnet device, not only can save electric energy but also not influence the magnetic of permanent magnet substantially.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of magnetic-holding electric magnet device is provided, the moving iron that comprises coil and described coil central authorities, also comprise: at least one permanent magnet, described at least one permanent magnet is sheathed on described moving iron first end, magnetic direction in described at least one permanent magnet and described moving iron axially parallel; And magnetic conductive shell, comprising first magnetic conductor and second magnetic conductor, described magnetic conductive shell coats described coil and moving iron; And at described moving iron during in primary importance, the magnetic line of force is successively through first magnetic loop of described at least one permanent magnet, moving iron first end and first magnetic conductor, contiguous described first magnetic conductor of described at least one permanent magnet and moving iron first end; And at described moving iron during in the second place, the magnetic line of force is second magnetic loop of the described at least one permanent magnet of process, moving iron second end, second magnetic conductor and first magnetic conductor successively, contiguous described second magnetic conductor of described moving iron second end, described moving iron first end is away from described magnetic conductive shell; Wherein, during in primary importance, described second magnetic loop disconnects at described moving iron, and during in the second place, described first magnetic loop disconnects at described moving iron.
Wherein, also comprise second permanent magnet, be sheathed on described moving iron second end, its pole orientation is opposite with the pole orientation of described at least one permanent magnet; And at described moving iron during in the second place, the magnetic line of force is successively through the 3rd magnetic loop of described second permanent magnet, moving iron second end and second magnetic conductor; And at described moving iron during in primary importance, the magnetic line of force is successively through the 4th magnetic loop of described second permanent magnet, moving iron first end, first magnetic conductor and second magnetic conductor.
The beneficial effects of the utility model are: be different from prior art general electromagnet device and adopt the long-term energising of coil to make iron hold mode cause expending and the generation of used heat electric energy, or permanent magnet can produce demagnetization and influence the situation of permanent magnet magnetic in the existing magnetic-holding electric magnet device, the present invention adopts the opposite magnetic loop of both direction at least, and promoting described moving iron by the energising in short-term of coil moves in the primary importance and the second place, at described moving iron during in primary importance, the magnetic line of force passes through described at least one permanent magnet successively, moving iron first end, first magnetic conductor can attract described moving iron under no electric situation, to move iron and remain on described primary importance; At described moving iron during in the second place, the magnetic line of force through described at least one permanent magnet, moving iron second end, second magnetic conductor and first magnetic conductor, can attract described moving iron successively under no electric situation, will move iron remains on the described second place.Be described moving iron only is subjected to first magnetic loop when primary importance attraction, second magnetic loop does not then disconnect in the second place owing to moving iron, does not influence the running of first magnetic loop yet.In like manner, described moving iron also only is subjected to the attraction of second magnetic loop when the second place.Therefore, only needing the energising in short-term of coil to promote described moving iron moves between the primary importance and the second place, and described moving iron does not need coil electricity to keep in the hold mode of the primary importance and the second place, and owing to the energising in short-term of coil can not cause the situation that permanent magnet demagnetization is influenced permanent magnet magnetic, because the magnetic line of force that coil produces can not pass permanent magnet along the magnetic line of force that is in reverse to permanent magnet, so can not make permanent magnet produce demagnetization substantially, the stable performance of long-term assurance when can significantly save electric energy.
Description of drawings
Fig. 1 is the theory diagram of the utility model magnetic-holding electric magnet device first execution mode at state one;
Fig. 2 is the theory diagram of the utility model magnetic-holding electric magnet device first execution mode at state two;
Fig. 3 is the theory diagram of the utility model magnetic-holding electric magnet device second execution mode at state one;
Fig. 4 is the theory diagram of the utility model magnetic-holding electric magnet device second execution mode at state two.
Embodiment
Consult Fig. 1 and Fig. 2, the utility model magnetic-holding electric magnet device comprises:
At least one permanent magnet, described at least one permanent magnet are sheathed on described moving iron first end, magnetic direction in described at least one permanent magnet and described moving iron axially parallel; And
Magnetic conductive shell comprises first magnetic conductor and second magnetic conductor, and described magnetic conductive shell coats described coil and moving iron; And
At described moving iron during in primary importance, the magnetic line of force is successively through first magnetic loop (Fig. 1) of described at least one permanent magnet, moving iron first end and first magnetic conductor, contiguous described first magnetic conductor of described at least one permanent magnet and moving iron first end; And
At described moving iron during in the second place, the magnetic line of force is second magnetic loop (Fig. 2) of the described at least one permanent magnet of process, moving iron second end, second magnetic conductor and first magnetic conductor successively, contiguous described second magnetic conductor of described moving iron second end, described moving iron first end is away from described magnetic conductive shell;
Wherein, during in primary importance, described second magnetic loop disconnects at described moving iron, and during in the second place, described first magnetic loop disconnects at described moving iron.
Being different from prior art general electromagnet device adopts the long-term energising of coil to make iron hold mode cause expending and make global warming electric energy, permanent magnet can produce demagnetization and influence the situation of permanent magnet magnetic in the perhaps existing magnetic-holding electric magnet device, the present invention adopts the opposite magnetic loop of both direction at least, and promoting described moving iron by the energising in short-term of coil moves in the primary importance and the second place, at described moving iron during in primary importance, the magnetic line of force passes through described at least one permanent magnet successively, moving iron first end and first magnetic conductor, form first magnetic loop, can under no electric situation, attract described moving iron, to move iron and remain on described primary importance; At described moving iron during in the second place, the magnetic line of force through described at least one permanent magnet, moving iron second end, second magnetic conductor and first magnetic conductor, can attract described moving iron successively under no electric situation, will move iron remains on the described second place.
Be described moving iron only is subjected to first magnetic loop when primary importance attraction, second magnetic loop does not then disconnect in the second place owing to moving iron, does not influence the running of first magnetic loop yet.
In like manner, described moving iron also only is subjected to the attraction of second magnetic loop when the second place.
Further describe again: be that original position is an example with Fig. 1, the magnetic line of force that forces permanent magnet during the magnetic field magnetic line that produces when coil and Fig. 1 opposite oppositely moves along the magnetic line of force of the second above-mentioned magnetic loop, second end of moving like this iron and the magnetic line of force between second magnetic conductor be more than moving iron first end and the direct magnetic line of force of first magnetic conductor, because be that permanent magnet and coil produce simultaneously and superpose through second end that moves iron and the magnetic line of force between second magnetic conductor.And the magnetic line of force between moving iron first end and first magnetic conductor only is the coil generation.Certainly, in the present embodiment, reach this purpose, must make the excitation of coil enough strong, make the magnetic line of force of coil be enough to the magnetic line of force of permanent magnet force substantially equidirectional till.
Therefore, only needing the energising in short-term of coil to promote described moving iron moves between the primary importance and the second place, and described moving iron does not need coil electricity to keep in the hold mode of the primary importance and the second place, and owing to the energising in short-term of coil can not cause the situation that permanent magnet demagnetization is influenced permanent magnet magnetic, because the magnetic line of force that coil produces can not pass permanent magnet along the magnetic line of force that is in reverse to permanent magnet, so can not make permanent magnet produce demagnetization substantially, the stable performance of long-term assurance when can significantly save electric energy.
In another embodiment, the utility model magnetic-holding electric magnet device also comprises except that above-mentioned at least one permanent magnet (first permanent magnet):
Second permanent magnet is sheathed on described moving iron second end, and its pole orientation is opposite with the pole orientation of described at least one permanent magnet; And
At described moving iron during in the second place, the magnetic line of force is successively through the 3rd magnetic loop of described second permanent magnet, moving iron second end and second magnetic conductor; And
At described moving iron during in primary importance, the magnetic line of force is successively through the 4th magnetic loop of described second permanent magnet, moving iron first end, first magnetic conductor and second magnetic conductor.
Two permanent magnets replenish mutually, and it is the same that its actual effect and a people draw another person to push away in the back in front, and magnetic force is enough, can obtain extraordinary moving iron position and keep effect.
Wherein, described first permanent magnet end in its two ends at least is provided with magnetic conduction sheet, such as being provided with magnetic conduction sheet between described first permanent magnet and the moving iron or between described first permanent magnet and first magnetic conductor.Wherein among the embodiment, described magnetic conduction sheet is by described magnetic conductive shell and coil stationary.
Wherein, can also be provided with non magnetic pad between described moving iron and the magnetic conductive shell.
Wherein, described first and second permanent magnet can symmetry or asymmetric setting.Described permanent magnet or magnetic conduction sheet are annulus or are the cuboid of symmetry with the central shaft of described moving iron.Described magnetic conductive shell is square or circular, the cross section of described second magnetic conductor is the U type, described first magnetic conductor sealing U type openend, and the described first magnetic conductor center has perforation, described moving iron connects a connecting rod, and described connecting rod is set out from the described first magnetic conductor central hole.
Lift a mode more specifically below:
Consult Fig. 3 and Fig. 4, the utility model is equipped with a coil 7 in the centre of the good yoke 2,9 of magnetic property, the good moving iron 8 of magnetic property is equipped with in the centre of described coil 7, and an end of described moving iron 8 drives the connecting rod 1 of the non-magnetic of other mechanism kinematics when being connected with action.
Around the end in the middle of the described coil 7, described moving iron 8 magnetic conduction sheet 4, permanent magnet 5 and magnetic conduction sheet 6 are housed successively from top to bottom, described magnetic conduction sheet 4, permanent magnet 5, magnetic conduction sheet 6 are fixed on therebetween by yoke 2 and coil 7.Around the other end in the middle of the described coil 7, described moving iron 8 magnetic conduction sheet 12, permanent magnet 11 and magnetic conduction sheet 10 are housed successively from bottom to up, described magnetic conduction sheet 12, permanent magnet 11, magnetic conduction sheet 10 are fixed on therebetween by yoke 9 and coil 7.
The directed in opposite of described permanent magnet 5 and permanent magnet 11 the N utmost point and the N utmost point in rigging position, the direction of the interstitial hole of its direction and described coil is parallel.Described magnetic conduction sheet 4 and magnetic conduction sheet 12 are determined its thickness that has that it's too late according to the thickness of permanent magnet 5, determine the size or the thickness of described permanent magnet 5 and permanent magnet 11 according to the suction size of described moving iron 8 both sides demands.The described magnetic conduction sheet 4,12,6,10 of described moving iron 8 both sides, permanent magnet 5,11 can be symmetrical, also can be asymmetric.Described magnetic conduction sheet 4,12,6,10 and permanent magnet 5,11 can be selected annular, and also can select the central shaft with described moving iron 8 is the cuboid of symmetry.
Between described moving iron 8 and yoke 2, non magnetic pad 3 can be housed.Also can be added in (i.e. an other side of moving iron 8) between described moving iron 8 and the yoke 9 according to the suction demand.Can select both sides all to add or only add a certain side or do not add.
The course of work:
N utmost point sensing magnetic conduction sheet 6 with described permanent magnet 5 is an example explanation operating state.The initial condition of described the utility model magnetic-holding electric magnet device is if operating state shown in Figure 3, then can form following two and keep magnetic loops: the described permanent magnet 5 of the first, magnetic conduction sheet 6, moving iron 8, non magnetic pad 3 (if any), yoke 2, magnetic conduction sheet 4 (if any).Its two be described permanent magnet 11, magnetic conduction sheet 10, moving iron 8, non magnetic pad 3 (if any), yoke 2, yoke 9, magnetic conduction sheet 12 (if any).The magnetic flux stack of these two magnetic loops forms the suction between described yoke 2 and the moving iron 8.When described coil 7 energisings produce with the rightabout magnetic flux of above-mentioned magnetic flux, described moving iron 8 changes operating state shown in Figure 4 two over to, forms two other this moment and keeps magnetic loop: first permanent magnet 11, magnetic conduction sheet 10, moving iron 8, yoke 9, magnetic conduction sheet 12 (if any).Its two be permanent magnet 5, magnetic conduction sheet 6, moving iron 8, yoke 9, yoke 2, magnetic conduction sheet 4 (if any).The magnetic flux stack of these two magnetic loops forms the suction between yoke 9 and the moving iron 8, stably keeps moving iron 8 in this position.
Wherein said non magnetic pad 3 is chosen in moving iron 8 both sides as required and all adds or only add a certain side or do not add, and its forms non-magnetic gap and adds magnetic loop thereupon.
In the said structure, the structure of described yoke 2,9 can be square, also can be circular, and the structural member of composition is not limited to 2, but always can form closed magnetic loop by moving iron 8 air gaps adjacent with it.What deserves to be explained is, in the above-mentioned execution mode, can be reverse the magnetic line of force of all magnetic circuits, also can realize this function.
The utility model is simple in structure, design is ingenious, not only can save electric energy but also do not influence the magnetic of permanent magnet substantially and stronger to the gravitation of moving iron, can guarantee that product keeps stablizing of moving iron state in the product when being subjected to general impact, vibration etc. and influence.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (7)
1. magnetic-holding electric magnet device comprises it is characterized in that the moving iron of coil and described coil central authorities, also comprises:
At least one permanent magnet, described at least one permanent magnet are sheathed on described moving iron first end, magnetic direction in described at least one permanent magnet and described moving iron axially parallel; And
Magnetic conductive shell comprises first magnetic conductor and second magnetic conductor, and described magnetic conductive shell coats described coil and moving iron; And
At described moving iron during in primary importance, the magnetic line of force is successively through first magnetic loop of described at least one permanent magnet, moving iron first end and first magnetic conductor, contiguous described first magnetic conductor of described at least one permanent magnet and moving iron first end; And
At described moving iron during in the second place, the magnetic line of force is second magnetic loop of the described at least one permanent magnet of process, moving iron second end, second magnetic conductor and first magnetic conductor successively, contiguous described second magnetic conductor of described moving iron second end, described moving iron first end is away from described magnetic conductive shell;
Wherein, during in primary importance, described second magnetic loop disconnects at described moving iron, and during in the second place, described first magnetic loop disconnects at described moving iron.
2. magnetic-holding electric magnet device according to claim 1 is characterized in that: described at least one permanent magnet end in its two ends at least is provided with magnetic conduction sheet.
3. magnetic-holding electric magnet device according to claim 2 is characterized in that: be provided with non magnetic pad between described moving iron and the magnetic conductive shell.
4. according to each described magnetic-holding electric magnet device of claim 1 to 3, it is characterized in that, also comprise:
Second permanent magnet is sheathed on described moving iron second end, and its pole orientation is opposite with the pole orientation of described at least one permanent magnet; And
At described moving iron during in the second place, the magnetic line of force is successively through the 3rd magnetic loop of described second permanent magnet, moving iron second end and second magnetic conductor; And
At described moving iron during in primary importance, the magnetic line of force is successively through the 4th magnetic loop of described second permanent magnet, moving iron first end, first magnetic conductor and second magnetic conductor.
5. magnetic-holding electric magnet device according to claim 4 is characterized in that: described second permanent magnet and described at least one permanent magnet symmetry or asymmetric setting.
6. magnetic-holding electric magnet device according to claim 2 is characterized in that: described permanent magnet or magnetic conduction sheet are annulus or are the cuboid of symmetry with the central shaft of described moving iron.
7. according to each described magnetic-holding electric magnet device of claim 1 to 3, it is characterized in that:
Described magnetic conductive shell is square or circular, the cross section of described second magnetic conductor is the U type, described first magnetic conductor sealing U type openend, and the described first magnetic conductor center has perforation, described moving iron connects a connecting rod, and described connecting rod is set out from the described first magnetic conductor central hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920130379U CN201387783Y (en) | 2009-04-02 | 2009-04-02 | Magnetic latching electromagnet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920130379U CN201387783Y (en) | 2009-04-02 | 2009-04-02 | Magnetic latching electromagnet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387783Y true CN201387783Y (en) | 2010-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920130379U Expired - Lifetime CN201387783Y (en) | 2009-04-02 | 2009-04-02 | Magnetic latching electromagnet device |
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| CN (1) | CN201387783Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592780A (en) * | 2012-03-09 | 2012-07-18 | 方平 | Moving-iron type electro-mechanical converter based on spring device |
| CN102789873A (en) * | 2012-08-24 | 2012-11-21 | 常州市武进继电器厂 | Miniature two-way magnetic latching electromagnet |
| CN103500688A (en) * | 2013-09-27 | 2014-01-08 | 哈尔滨工业大学 | Electromagnetic structure containing permanent magnet |
| CN109243756A (en) * | 2018-09-01 | 2019-01-18 | 哈尔滨工程大学 | A kind of sucked type electromagnet sealing magnetic conduction construction |
| WO2020105296A1 (en) * | 2018-11-19 | 2020-05-28 | パナソニックＩｐマネジメント株式会社 | Electromagnet device and electromagnetic relay |
| CN112614746A (en) * | 2020-12-08 | 2021-04-06 | 东莞市中汇瑞德电子股份有限公司 | Magnetic latching magnetic circuit device and DC contactor |
-
2009
- 2009-04-02 CN CN200920130379U patent/CN201387783Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592780A (en) * | 2012-03-09 | 2012-07-18 | 方平 | Moving-iron type electro-mechanical converter based on spring device |
| CN102592780B (en) * | 2012-03-09 | 2013-04-17 | 方平 | Moving-iron type electro-mechanical converter based on spring device |
| CN102789873A (en) * | 2012-08-24 | 2012-11-21 | 常州市武进继电器厂 | Miniature two-way magnetic latching electromagnet |
| CN103500688A (en) * | 2013-09-27 | 2014-01-08 | 哈尔滨工业大学 | Electromagnetic structure containing permanent magnet |
| CN103500688B (en) * | 2013-09-27 | 2016-04-27 | 哈尔滨工业大学 | A kind of containing permanent-magnetism electromagnetic structure |
| US9607796B2 (en) | 2013-09-27 | 2017-03-28 | Harbin Institute Of Technology | Electromagnetic structure comprising a permanent magnet |
| CN109243756A (en) * | 2018-09-01 | 2019-01-18 | 哈尔滨工程大学 | A kind of sucked type electromagnet sealing magnetic conduction construction |
| CN109243756B (en) * | 2018-09-01 | 2020-11-20 | 哈尔滨工程大学 | Sucker type electromagnet sealing magnetic conduction structure |
| WO2020105296A1 (en) * | 2018-11-19 | 2020-05-28 | パナソニックＩｐマネジメント株式会社 | Electromagnet device and electromagnetic relay |
| CN112614746A (en) * | 2020-12-08 | 2021-04-06 | 东莞市中汇瑞德电子股份有限公司 | Magnetic latching magnetic circuit device and DC contactor |
| CN112614746B (en) * | 2020-12-08 | 2024-04-26 | 东莞市中汇瑞德电子股份有限公司 | Magnetic latching circuit device and direct current contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: 213 Electrical Apparatus (Shenzhen) Co.,Ltd. Assignor: Tianshui 213 Electrical Apparatus Company Ltd. Contract record no.: 2010440001358 Denomination of utility model: Magnetic latching electromagnet device Granted publication date: 20100120 License type: Exclusive License Record date: 20100909 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100120 |
|
| CX01 | Expiry of patent term |