CN103489718A - Bi-stable permanent magnet electromagnetic system of contactor - Google Patents
Bi-stable permanent magnet electromagnetic system of contactor Download PDFInfo
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- CN103489718A CN103489718A CN201310271637.XA CN201310271637A CN103489718A CN 103489718 A CN103489718 A CN 103489718A CN 201310271637 A CN201310271637 A CN 201310271637A CN 103489718 A CN103489718 A CN 103489718A
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Abstract
A bi-stable permanent magnet electromagnetic system of a contactor is mainly composed of a movable iron core (1), a first static iron core (2), a second first static iron core (3), a first permanent magnet (4), a second permanent magnet (5) and coils (6). In the process that the coils are powered on to make the movable iron core move, on the basis of the principle that opposite magnetic fields attract mutually is used and the principle that like magnetic fields repel mutually is used in the reverse direction, the two kinds of force are superimposed, so that large traction of the movable iron core is still achieved under the conditions of a small size and small exciting currents of the coils. Moreover the bi-stable permanent magnet electromagnetic system further has the advantages of being free of noise, simple in structure, low in manufacturing cost, long in service life, large in attraction force and the like and is particularly applicable to the contactor and electrical products with the function of the contactor.
Description
Technical field
The present invention relates to a kind of bistable permanent magnetic electromagnetic system of contactor, for contactor or there are the electric equipment products of contactor function, belong to the appliance switch technical field.
Background technology
Contactor is a kind of widely used electric controling switch device, and traditional common AC, DC contactor mainly is comprised of dynamic and static iron core, coil and associated component etc.During this type of contactor work, coil must be switched on for a long time, not only waste electric energy, and noise is large, useful life is short.
The patent of invention that China Patent No. is 200420058956.9 discloses a kind of permanent magnetism type contactor bistable state actuating structure, this mechanism mainly by the outer yoke that forms magnetic loop, be arranged on coil wherein, T-shaped armature and the permanent magnet be inserted in coil hole forms.Although this permanent magnet system has the advantages such as energy-conservation and noiselessness, its complex structure, and the magnetic efficiency of permanent magnet is on the low side and the suction-combining force is less than normal.
Summary of the invention
The object of the present invention is to provide a kind of bistable permanent magnetic electromagnetic system of contactor, this electromagnetic system is not only energy-conservation, and has improved utilance and the reliability of magnetic.
The technical solution adopted for the present invention to solve the technical problems is: it is characterized in that this electromagnetic system consists of moving iron core (1), the first static iron core (2), the second static iron core (3), the first permanent magnet (4), the second permanent magnet (5) and coil (6); Described moving iron core (1) bilateral symmetry is placed with the first static iron core (2) and the second static iron core (3); The middle part, the center pillar outside of described the first static iron core (2) is provided with a square groove, and the S pole-face of the first permanent magnet (4) is placed in square groove; The middle part, the center pillar outside of described the second static iron core (3) is provided with a square groove, and the S pole-face of the second permanent magnet (5) is placed in square groove; Be provided with coil (6) between described the first static iron core (2) and the second static iron core (3); Described moving iron core (1) is through the centre bore of coil (6).
First pole-face (11) of described moving iron core (1) and the inside corners place of the second pole-face (12) are provided with respectively the chamfering inclined-plane.
Be respectively arranged with the chamfering inclined-plane corresponding with the chamfering inclined-plane on moving iron core (1) on the pole of described the first static iron core (2) and the second static iron core (3).
The static iron core that described the first static iron core (2) and the second static iron core (3) are " H " font.
The moving iron core that described moving iron core (1) is " H " font.
Beneficial effect of the present invention is mainly manifested in: placed permanent magnet on static iron core, in the process that iron core is moved at coil electricity, utilized the magnetic field principle that there is a natural attraction between the sexes, utilized in the reverse direction the principle of two like magnetic poles repel each other simultaneously, make very cleverly these two kinds of power superimposed, make the present invention can be in the situation that less volume and less coil magnetization electric current, still can realize larger moving iron core tractive effort, but also there is noiselessness, simple in structure, low cost of manufacture, long working life, the advantages such as the suction-combining force is large, be specially adapted to contactor and have on the electric equipment products of contactor function.
The accompanying drawing explanation
For this practical content is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is the structural representation of bistable permanent magnetic electromagnetic system when attracting state to the right of contactor of the present invention;
Fig. 2 is the structural representation of bistable permanent magnetic electromagnetic system when attracting state left of contactor of the present invention;
In figure: 1-moves iron core, 2-the first static iron core, 3-the second static iron core, 4-the first permanent magnet, 5-the second permanent magnet, 6-coil, 11-the first pole-face, 12-the second pole-face.
Embodiment
Below provide specific embodiments of the invention, referring to Fig. 1 and Fig. 2, a kind of bistable permanent magnetic electromagnetic system of contactor, consist of moving iron core (1), the first static iron core (2), the second static iron core (3), the first permanent magnet (4), the second permanent magnet (5) and coil (6); Described moving iron core (1) bilateral symmetry is placed with the first static iron core (2) and the second static iron core (3); The middle part, the center pillar outside of described the first static iron core (2) is provided with a square groove, and the S pole-face of the first permanent magnet (4) is placed in square groove; The middle part, the center pillar outside of described the second static iron core (3) is provided with a square groove, and the S pole-face of the second permanent magnet (5) is placed in square groove; Be provided with coil (6) between described the first static iron core (2) and the second static iron core (3); Described moving iron core (1) is through the centre bore of coil (6).
First pole-face (11) of described moving iron core (1) and the inside corners place of the second pole-face (12) are provided with respectively the chamfering inclined-plane.
Be respectively arranged with the chamfering inclined-plane corresponding with the chamfering inclined-plane on moving iron core (1) on the pole of described the first static iron core (2) and the second static iron core (3).
The static iron core that described the first static iron core (2) and the second static iron core (3) are " H " font.
The moving iron core that described moving iron core (1) is " H " font.
Referring to Fig. 1 and Fig. 2, the present embodiment is realized to the conversion of two kinds of operating states describes.
As shown in Figure 1: coil (6) is applied to forward current, produce magnetic field, under the magnetic field magnetisation effect, first pole-face (11) of moving iron core (1) is the S utmost point, second pole-face (12) of moving iron core (1) is the N utmost point, the first static iron core (2) and the second static iron core (3) are the S utmost point under the effect of the first permanent magnet (4) and the second permanent magnet (5), first pole-face (11) of moving iron core (1) and the first static iron core (2) and the second static iron core (3) two like magnetic poles repel each other, move iron core (1) to the right; There is a natural attraction between the sexes for second pole-face (12) of moving iron core (1) and the first static iron core (2) and the second static iron core (3), iron core (1) is also moved right, same sex repulsion and different in nature suction superpose mutually, produce larger actuating force, make moving iron core (1) operation to the right under the effect of actuating force.After completing to the right attracting state, cut off coil (6) forward current, coil (6) is quit work, moving iron core (1) is at the first permanent magnet (4) and the second permanent magnet (5) under the RETENTION BY SOILS to the second pole-face (12) of moving iron core (1), still keeps the stable state after adhesive to the right.
As shown in Figure 2: coil (6) is applied to reverse current, produce magnetic field, under the magnetic field magnetisation effect, first pole-face (11) of moving iron core (1) is the N utmost point, second pole-face (12) of moving iron core (1) is the S utmost point, the first static iron core (2) and the second static iron core (3) are the S utmost point under the effect of the first permanent magnet (4) and the second permanent magnet (5), first pole-face (11) of moving iron core (1) and the first static iron core (2) and the different in nature suction of the second static iron core (3), move iron core (1) left; Second pole-face (12) of moving iron core (1) and the first static iron core (2) and the second static iron core (3) same sex repulsion, make iron core (1) also to left movement, opposite sex suction and same sex repulsion superpose mutually, produce larger actuating force, make moving iron core (1) operation left under the effect of actuating force.After completing left attracting state, cut off coil (6) reverse current, coil (6) is quit work, moving iron core (1) is at the first permanent magnet (4) and the second permanent magnet (5) under the RETENTION BY SOILS to the first pole-face (11) of moving iron core (1), still keeps the stable state after adhesive left.
Although the present invention describes with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is only for the present invention is described; should understand and wherein can make various changes and revise and not break away from a broad sense the present invention; so not as limitation of the invention; as long as in connotation scope of the present invention, to variation, the distortion of the embodiment under above, all will fall into the protection range of the claims in the present invention.
Claims (5)
1. the bistable permanent magnetic electromagnetic system of a contactor, is characterized in that this electromagnetic system consists of moving iron core (1), the first static iron core (2), the second static iron core (3), the first permanent magnet (4), the second permanent magnet (5) and coil (6); Described moving iron core (1) bilateral symmetry is placed with the first static iron core (2) and the second static iron core (3); The middle part, the center pillar outside of described the first static iron core (2) is provided with a square groove, and the S pole-face of the first permanent magnet (4) is placed in square groove; The middle part, the center pillar outside of described the second static iron core (3) is provided with a square groove, and the S pole-face of the second permanent magnet (5) is placed in square groove; Be provided with coil (6) between described the first static iron core (2) and the second static iron core (3); Described moving iron core (1) is through the centre bore of coil (6).
2. the bistable permanent magnetic electromagnetic system of a kind of contactor according to claim 1, it is characterized in that: first pole-face (11) of described moving iron core (1) and the inside corners place of the second pole-face (12) are provided with respectively the chamfering inclined-plane.
3. the bistable permanent magnetic electromagnetic system of a kind of contactor according to claim 1, is characterized in that: be respectively arranged with the chamfering inclined-plane corresponding with the chamfering inclined-plane on moving iron core (1) on the pole of described the first static iron core (2) and the second static iron core (3).
4. the bistable permanent magnetic electromagnetic system of a kind of contactor according to claim 1, it is characterized in that: described the first static iron core (2) and the second static iron core (3) are the static iron core of " H " font.
5. the bistable permanent magnetic electromagnetic system of a kind of contactor according to claim 1, it is characterized in that: described moving iron core (1) is the moving iron core of " H " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271637.XA CN103489718A (en) | 2013-06-23 | 2013-06-23 | Bi-stable permanent magnet electromagnetic system of contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271637.XA CN103489718A (en) | 2013-06-23 | 2013-06-23 | Bi-stable permanent magnet electromagnetic system of contactor |
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| CN103489718A true CN103489718A (en) | 2014-01-01 |
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| CN201310271637.XA Pending CN103489718A (en) | 2013-06-23 | 2013-06-23 | Bi-stable permanent magnet electromagnetic system of contactor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161372A (en) * | 2015-09-24 | 2015-12-16 | 林勇 | Magnetic latching relay structured system |
| CN109455010A (en) * | 2018-12-27 | 2019-03-12 | 贵州劲嘉新型包装材料有限公司 | A kind of printing process of the packing box with sealing function |
| CN112211501A (en) * | 2020-09-22 | 2021-01-12 | 兰州万里航空机电有限责任公司 | Bidirectional self-holding electromagnetic lock for aviation |
| WO2022117077A1 (en) * | 2020-12-03 | 2022-06-09 | 华为技术有限公司 | Relay |
-
2013
- 2013-06-23 CN CN201310271637.XA patent/CN103489718A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161372A (en) * | 2015-09-24 | 2015-12-16 | 林勇 | Magnetic latching relay structured system |
| CN109455010A (en) * | 2018-12-27 | 2019-03-12 | 贵州劲嘉新型包装材料有限公司 | A kind of printing process of the packing box with sealing function |
| CN112211501A (en) * | 2020-09-22 | 2021-01-12 | 兰州万里航空机电有限责任公司 | Bidirectional self-holding electromagnetic lock for aviation |
| CN112211501B (en) * | 2020-09-22 | 2022-05-24 | 兰州万里航空机电有限责任公司 | Bidirectional self-holding electromagnetic lock for aviation |
| WO2022117077A1 (en) * | 2020-12-03 | 2022-06-09 | 华为技术有限公司 | Relay |
| EP4250328A4 (en) * | 2020-12-03 | 2024-04-24 | Huawei Technologies Co., Ltd. | Relay |
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Application publication date: 20140101 |