CN102024630A - Electromagnetic release - Google Patents
Electromagnetic release Download PDFInfo
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- CN102024630A CN102024630A CN2009101449888A CN200910144988A CN102024630A CN 102024630 A CN102024630 A CN 102024630A CN 2009101449888 A CN2009101449888 A CN 2009101449888A CN 200910144988 A CN200910144988 A CN 200910144988A CN 102024630 A CN102024630 A CN 102024630A
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- iron core
- yoke
- moving iron
- coil
- magnetictrip
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Abstract
The present invention provides an electromagnetic release, comprising a magnet yoke, a coil frame arranged in the magnet yoke, a current coil and a voltage coil arranged on the coil frame, and a static iron core, a first moving iron core as well as a second moving iron core arranged in an accommodation cavity of the coil frame, wherein, the magnet yoke is composed of a first magnet yoke and a second magnet yoke, one magnet circuit is formed by the static iron core, the first magnet yoke and the first moving iron core, as well as the other magnet circuit is formed by the first moving iron core, the second moving iron core and the second magnet yoke, in addition, the current coil and the voltage coil are respectively arranged in the two different magnet circuits. The current coil and the voltage coil of the present invention are respectively arranged in the two different magnet circuits, and in each magnet circuit, air gaps between two iron cores are respectively located inside the corresponding coils, thereby satisfying the requirement of the electromagnetic release to electromagnetic attraction. In addition, the same moving direction of two moving iron cores makes a better releasing performance.
Description
Technical field
The present invention relates to the low-voltage electrical apparatus field, be specifically related to be applicable to the magnetictrip of miniature circuit breaker.
Background technology
Miniature circuit breaker has overload, short circuit and aftercurrent action protecting function usually.Short-circuit protection function is realized thereby make armature motion and promote breaker mechanism turn-off current loop by comprising the magnetictrip induction that coil, armature, magnet yoke element etc. form and setting up magnetic field; The aftercurrent action protecting function is responded to residual current by zero sequence current mutual inductor, and when residual current during greater than set point, the action of residual current acting magnetictrip also promotes breaker mechanism turn-off current loop and realizes.
The magnetictrip of existing miniature circuit breaker mostly is combined type, and it is made up of short circuit current action magnetictrip and residual current acting magnetictrip.As the applicant's application number is 2009200454117 the disclosed technical scheme of patent, has the function of short circuit current action magnetictrip and residual current acting magnetictrip on a magnetictrip simultaneously.But this magnetictrip also has its shortcoming, the current coil of this structure and potential winding are in the same U-shaped yoke, therefore current coil and potential winding are in the same magnetic loop of being made up of static iron core, moving iron core and yoke, the part of the air gap between static iron core, moving iron core is in the outside of a coil, or this air gap all is in the outside of a coil, thereby leakage field is bigger, and electromagnetic attraction is less, and difficulty satisfies the requirement of magnetictrip to electromagnetic attraction.
The content of invention
Above-mentioned shortcoming at existing magnetictrip, the applicant has carried out improving research, another kind of magnetictrip is provided, its current coil and potential winding are respectively in two different magnetic loops, in each magnetic loop, air gap between two iron cores has satisfied the requirement of magnetictrip to electromagnetic attraction respectively in respective coil inside.
Technical scheme of the present invention is as follows:
A kind of magnetictrip, comprise yoke and be installed on coil rack in the yoke, current coil and potential winding are installed on the coil rack, device has static iron core, the first moving iron core and the second moving iron core in the container cavity of coil rack, described yoke is made up of first yoke and second yoke, static iron core, first yoke, the first moving iron core are formed a magnetic loop, the first moving iron core, the second moving iron core, second yoke are formed another magnetic loop, and current coil, potential winding are respectively in above-mentioned two different magnetic loops.
Its further technical scheme is: described current coil is in the magnetic loop that static iron core, first yoke, the first moving iron core are formed; Described potential winding is in the magnetic loop that the first moving iron core, the second moving iron core, second yoke are formed.
Its further technical scheme is: described first yoke and second yoke are the parts of an one.
Its further technical scheme is: described first yoke and second yoke are two independently parts.
Its further technical scheme is: described first yoke and second yoke are in the both sides of coil rack respectively.
Its further technical scheme is: described first yoke and second yoke are in the same side of coil rack.
Its further technical scheme is: described static iron core, the first moving iron core and the second moving iron core are on same axis.
Its further technical scheme is: a limited step is arranged, when the first moving iron core moves to extreme position left and this limited step butt on the described coil rack.
Its further technical scheme is: the centre of the described static iron core and the first moving iron core has through hole, one push rod is set in the through hole, push rod is with the compression spring outward, one end of this compression spring and the spacing ring butt that is placed on the push rod, the end face butt of its other end and static iron core, when push rod moves to extreme position left, the end face butt of the spacing ring and the first moving iron core.
Useful technique effect of the present invention is:
The present invention has the function of short circuit current action magnetictrip and residual current acting magnetictrip simultaneously on a magnetictrip, and current coil is in respectively in two different magnetic loops with potential winding: current coil is in the magnetic loop that static iron core, first yoke, the first moving iron core are formed; Potential winding is in the magnetic loop that the first moving iron core, the second moving iron core, second yoke are formed.Static iron core, the first moving iron core, the second moving iron core are divided into two sections with air gap, respectively in two independent magnetic loops, and air gap is portion in coil all, reach the requirement of magnetictrip easily to electromagnetic attraction, and two moving iron cores move to same direction when motion, trip speed is faster, and the dropout performance is better.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is the cutaway view of the embodiment of the invention one.
Fig. 3 is the structural representation of the embodiment of the invention two.
Fig. 4 is the structural representation of the embodiment of the invention three.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
As shown in Figure 1 and Figure 2, the present invention includes the yoke of forming by first yoke 2 and second yoke 6, and be installed on coil rack 4 in the yoke, current coil 8 and potential winding 7 are installed on the coil rack 4 side by side, in the container cavity of coil rack 4 successively device static iron core 1, the first moving iron core 3 and the second moving iron core 5 are arranged, described static iron core 1, the first moving iron core 3 and the second moving iron core 5 are on same axis.Static iron core 1, first yoke, 2, the first moving iron core 3 are formed a magnetic loop, and first moving iron core 3, the second moving iron core 5, second yoke 6 are formed another magnetic loop.Described current coil 8 is in the magnetic loop that static iron core 1, first yoke, 2, the first moving iron core 3 are formed; Described potential winding 7 is in the magnetic loop that first moving iron core 3, the second moving iron core 5, second yoke 6 are formed.When having the moving iron cores 3 of a limited step 11, the first to move to extreme position left on the coil rack 4 and these limited step 11 butts.The centre of the static iron core 1 and the first moving iron core 3 has through hole, one push rod 10 is set in the through hole, the push rod 10 outer compression springs 9 that are with, one end of this compression spring 9 and spacing ring 12 butts that are placed on the push rod 10, the end face butt of its other end and static iron core 1, when push rod 10 moves to extreme position left, the end face butt of the spacing ring 12 and the first moving iron core 3.
Embodiment one:
As shown in Figure 1 and Figure 2, described first yoke 2 and second yoke 6 are parts of an one, have groove on it, and coil rack 4 embeds wherein.And described first yoke 2 and second yoke 6 are in the both sides of coil rack 4 respectively.
Embodiment two:
As shown in Figure 3, described first yoke 2 and second yoke 6 are two independently parts, are connected with coil rack 4 respectively, and be more convenient at fit on.And described first yoke 2 and second yoke 6 are in the both sides of coil rack 4 respectively.
Embodiment three:
As shown in Figure 4, described first yoke 2 and second yoke 6 are parts of an one.And described first yoke 2 and second yoke 6 are in the same side of coil rack 4, have saved the material of yoke.
Operation principle of the present invention is as follows:
When the circuit operate as normal, there is not electric current to pass through in the potential winding 7, potential winding 7 does not produce excitation field, flows through the electric current that is not more than the circuit breaker rated current in the current coil 8, and it is not enough so that the first moving iron core 3 overcomes the action of compression spring 9 resistances that current coil 8 produces very little excitation field; When the big short circuit current of generation in the circuit makes current coil 8 produce enough big excitation field, the first moving iron core 3 is under the effect of this excitation field, drive push rod 10 by the spacing ring on the push rod 10 12 and overcome the direction motion of the resistance of compression spring 9 to static iron core 1, pushing mechanism is threaded off; When having enough big residual current to produce in the circuit, control circuit will be connected the circuit of potential winding 7, make potential winding 7 two ends load sufficiently high voltage, potential winding 7 produces enough big excitation field, make the direction motion to the first moving iron core 3 under the effect of this excitation field of the second moving iron core 5, promote the resistance exercise that push rod 10 overcomes compression spring 9, pushing mechanism is threaded off, this moment first, moving iron core 3 also will move to second moving iron core 5 directions, but the first moving iron core 3 is stopped by the limited step on the coil rack 4 11; When current coil 8 and potential winding 7 produce enough big excitation field simultaneously, the first moving iron core 3 is consistent with the direction of motion of the second moving iron core 5, though the first moving iron core 3 is subjected to two bursts of effects of power in the other direction, be obstructed and slow down to the motion of static iron core 1 direction, but push rod 10 moves to static iron core 1 direction under the promotion of the second moving iron core 5, pushing mechanism is threaded off, and trip speed is faster, and the dropout performance is better.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that those skilled in the art under the prerequisite that does not break away from spirit of the present invention and design, can make other improvement and variation.
Claims (9)
1. magnetictrip, comprise yoke and be installed on coil rack in the yoke, current coil and potential winding are installed on the coil rack, device has static iron core, the first moving iron core and the second moving iron core in the container cavity of coil rack, it is characterized in that: described yoke is made up of first yoke and second yoke, static iron core, first yoke, the first moving iron core are formed a magnetic loop, the first moving iron core, the second moving iron core, second yoke are formed another magnetic loop, and current coil, potential winding are respectively in above-mentioned two different magnetic loops.
2. magnetictrip according to claim 1, it is characterized in that: described current coil is in the magnetic loop that static iron core, first yoke, the first moving iron core are formed; Described potential winding is in the magnetic loop that the first moving iron core, the second moving iron core, second yoke are formed.
3. magnetictrip according to claim 1, it is characterized in that: described first yoke and second yoke are the parts of an one.
4. magnetictrip according to claim 1, it is characterized in that: described first yoke and second yoke are two independently parts.
5. magnetictrip according to claim 1, it is characterized in that: described first yoke and second yoke are in the both sides of coil rack respectively.
6. magnetictrip according to claim 1, it is characterized in that: described first yoke and second yoke are in the same side of coil rack.
7. magnetictrip according to claim 1, it is characterized in that: described static iron core, the first moving iron core and the second moving iron core are on same axis.
8. magnetictrip according to claim 1 is characterized in that: a limited step is arranged, when the first moving iron core moves to extreme position left and this limited step butt on the described coil rack.
9. magnetictrip according to claim 1, it is characterized in that: the centre of the described static iron core and the first moving iron core has through hole, one push rod is set in the through hole, push rod is with the compression spring outward, one end of this compression spring and the spacing ring butt that is placed on the push rod, the end face butt of its other end and static iron core, when push rod moves to extreme position left, the end face butt of the spacing ring and the first moving iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101449888A CN102024630A (en) | 2009-09-15 | 2009-09-15 | Electromagnetic release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101449888A CN102024630A (en) | 2009-09-15 | 2009-09-15 | Electromagnetic release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102024630A true CN102024630A (en) | 2011-04-20 |
Family
ID=43865800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101449888A Pending CN102024630A (en) | 2009-09-15 | 2009-09-15 | Electromagnetic release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102024630A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337423A (en) * | 2013-07-16 | 2013-10-02 | 浙江正泰电器股份有限公司 | Double-action electromagnetic trip |
| CN104078289A (en) * | 2013-03-29 | 2014-10-01 | 松下电器产业株式会社 | Electromagnetic trip device and circuit breaker |
| CN104241047A (en) * | 2013-06-11 | 2014-12-24 | 松下电器产业株式会社 | Electromagnetic tripping device and breaker |
| CN106557133A (en) * | 2016-03-08 | 2017-04-05 | 勾富 | Computer and computer water-filled radiator water-leakage protecting device |
| CN108231501A (en) * | 2018-01-12 | 2018-06-29 | 厦门大恒科技有限公司 | Hydraulic movable iron core electromagnet and circuit breaker |
| CN111128624A (en) * | 2020-02-20 | 2020-05-08 | 德力西电气有限公司 | Electromagnetic release and circuit breaker |
-
2009
- 2009-09-15 CN CN2009101449888A patent/CN102024630A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078289A (en) * | 2013-03-29 | 2014-10-01 | 松下电器产业株式会社 | Electromagnetic trip device and circuit breaker |
| CN104078289B (en) * | 2013-03-29 | 2016-06-15 | 松下知识产权经营株式会社 | Electromagnetic tripping apparatus and circuit-breaker |
| CN104241047A (en) * | 2013-06-11 | 2014-12-24 | 松下电器产业株式会社 | Electromagnetic tripping device and breaker |
| CN104241047B (en) * | 2013-06-11 | 2016-09-21 | 松下知识产权经营株式会社 | Electromagnetic tripping apparatus and chopper |
| CN103337423A (en) * | 2013-07-16 | 2013-10-02 | 浙江正泰电器股份有限公司 | Double-action electromagnetic trip |
| CN103337423B (en) * | 2013-07-16 | 2015-11-18 | 浙江正泰电器股份有限公司 | Two action magnetictrip |
| CN106557133A (en) * | 2016-03-08 | 2017-04-05 | 勾富 | Computer and computer water-filled radiator water-leakage protecting device |
| CN108231501A (en) * | 2018-01-12 | 2018-06-29 | 厦门大恒科技有限公司 | Hydraulic movable iron core electromagnet and circuit breaker |
| CN108231501B (en) * | 2018-01-12 | 2024-02-27 | 厦门大恒科技有限公司 | Hydraulic movable iron core electromagnet and circuit breaker |
| CN111128624A (en) * | 2020-02-20 | 2020-05-08 | 德力西电气有限公司 | Electromagnetic release and circuit breaker |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuxi Weite Electrical Technology Co., Ltd. Peng Qijun Document name: Notification of Publication of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Wuxi Weite Electrical Technology Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |