CN102044387B - Permanent magnet-assisted starting leakage protector - Google Patents
Permanent magnet-assisted starting leakage protector Download PDFInfo
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- CN102044387B CN102044387B CN201010610664.1A CN201010610664A CN102044387B CN 102044387 B CN102044387 B CN 102044387B CN 201010610664 A CN201010610664 A CN 201010610664A CN 102044387 B CN102044387 B CN 102044387B
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- permanent magnet
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- plunger
- assisted starting
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- 230000001012 protector Effects 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a permanent magnet-assisted starting leakage protector, and belongs to the field of leakage protectors. The permanent magnet-assisted starting leakage protector comprises a support, an electromagnet, a permanent magnet, a swing plate, a return component, a stationary contact component, a moving contact component, and a leakage detection circuit which controls the switch-on and switch-off of the electromagnet, wherein the electromagnet and the support are arranged together; the moving contact component and one end of the swing plate are arranged together; the other end of the swing plate and the return component are arranged together; the return component and the support are arranged together; the permanent magnet, and the leakage detection circuit which controls the switch-on and switch-off of the electromagnet are arranged in the support respectively; the electromagnet comprises a plunger, a fixed iron core, a coil frame and a coil assembly; the coil assembly and the coil frame are arranged together; the plunger and the fixed iron core are arranged together with the coil frame respectively; the permanent magnet is in contact with the outer end of the plunger; and the return component comprises a return spring. The permanent magnet-assisted starting leakage protector can protect an electric appliance from being burnt out and protect a user from getting an electric shock.
Description
Technical field
The present invention relates to earth leakage protective device field, particularly relate to a kind of permanent magnet-assisted starting leakage protector.
Background technology
For the reason of electric appliance safety, earth leakage protective device is usually used in being connected between electrical equipment and main power source.In general typical structure, earth leakage protective device is at least controlled a pair of or above contact between load and power supply, and comprises a minimum moving contact mechanical structure, joins the fixing contact of another side to.The effect of electromagnet is a pair of or above contact to be joined together and circuit turn-on.
The magnetic force that typical electromagnet generally provides under the longer applicable cases of stroke relatively a little less than, general design is at short notice electromagnet overload operation, to promote magnetic force conventionally.But the time of overload operation can not maintain much longer, otherwise electromagnet there will be situation overheated or that burn.Yet earth leakage protective device will in the situation that keep in touch in conducting state in running, until it is closed or leakage trigger and ceasing to function.Therefore, this class earth leakage protective device electromagnet used must running continuously in long-time.
While starting in order to reduce institute must electric current and keep electromagnet attracting state the electric current of palpus; to can allow electromagnet keep running at a lower temperature; to reduce the life-span of cost and the prolongation electromagnet of power consumption, saving electromagnet, people urgently wish that a kind of permanent magnet-assisted starting leakage protector comes out.
Summary of the invention
Technical problem to be solved by this invention is; design a kind of permanent magnet-assisted starting leakage protector; this permanent magnet-assisted starting leakage protector can reduce institute while starting must electric current and keep electromagnet attracting state the electric current of palpus; to can allow electromagnet keep running at a lower temperature, reach the cost that reduces power consumption, saves electromagnet and extend the electromagnet object in useful life.
The technical solution adopted for the present invention to solve the technical problems is: permanent magnet-assisted starting leakage protector, comprise bearing, electromagnet, one permanent magnet, swing sheet, return assembly, fixing contact assembly, the electric-leakage detection circuit of moving contact assembly and the action of control magnet switching, electromagnet and bearing are installed together, moving contact assembly is assembled together with swing sheet one end, swing the sheet other end together with return assembled, return assembly and bearing are assembled together, the electric-leakage detection circuit of permanent magnet and the action of control magnet switching is assemblied in bearing respectively.
In technique scheme, described electromagnet comprises plunger, secured core, coil rack and coil groups, coil groups and coil rack are assembled together, and plunger and secured core are assembled together with coil rack respectively, and permanent magnet and plunger outer end contact.
Described return assembly comprises a return spring, and return spring one end and bearing are inconsistent.
The invention has the beneficial effects as follows: 1, the permanent magnet-assisted starting leakage protector of said structure, when there is leaky, this protector can cut off electric current fast by fixedly contact assembly and the disconnection of moving contact assembly, reaches the object of protection electrical appliance.Electromagnet is controlled by one group of electronic circuit; when electric circuit inspection occurs to leak current fault; circuit will stop powering to electromagnet; make that fixedly contact assembly is automatically separated with moving contact assembly; earth leakage protective device just stops the electrical appliance power supply to associated at once; with protection user, avoid the danger of electric shock, and protect electrical appliance, prevent from being burned.2, this permanent magnet-assisted starting leakage protector can reduce institute while starting must electric current and keep electromagnet attracting state the electric current of palpus; to can allow electromagnet keep running at a lower temperature, reach the cost that reduces power consumption, saves electromagnet and extend the electromagnet object in useful life.3, permanent magnet can magnetize plunger in advance, and deflection is conducive to the magnetic field that electromagnet produces, with plunger adhesive to secured core, at one time in moving contact assembly by the return assembly of interlock, ordered about down and follow plunger and be drawn to fixedly contact assembly, maintain electric conducting state.4, this permanent magnet-assisted starting leakage protector is used safety, in use there will not be security incident.5, this permanent magnet-assisted starting leakage protector is reasonable in design, practical, and product has wide market prospects.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is perspective view of the present invention;
Fig. 2 is the present invention under "on" position not, fixedly contact assembly and the structural representation of moving contact assembly when released state;
Fig. 3 be the present invention under "on" position, fixedly contact assembly and the structural representation of moving contact assembly when engagement state.
In figure, 1, permanent magnet; 2, plunger; 3, secured core; 4, coil rack; 5, coil groups; 6, fixing contact assembly; 7, moving contact assembly; 8, bearing.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of permanent magnet-assisted starting leakage protector described in the present embodiment, comprise bearing 8 and electromagnet, electromagnet and bearing 8 are installed together, this permanent magnet-assisted starting leakage protector also comprises a permanent magnet 1, swing sheet, return assembly, fixedly contact assembly 6, the electric-leakage detection circuit of moving contact assembly 7 and the action of control magnet switching, moving contact assembly 7 is assembled together with swing sheet one end, swing the sheet other end together with return assembled, return assembly and bearing 8 are assembled together, the electric-leakage detection circuit of permanent magnet and the action of control magnet switching is assemblied in respectively in bearing 8.Described electromagnet comprises plunger 2, secured core 3, coil rack 4 and coil groups 5, and coil groups 5 and coil rack 4 are assembled together, and plunger 2 and secured core 3 are assembled together with coil rack 4 respectively, and permanent magnet 1 contacts with plunger 2 outer ends.Described return assembly comprises a return spring, and return spring one end and bearing 8 are inconsistent.
Operation principle of the present invention: utilize permanent magnet 1 to be arranged on the front end of plunger 2, plunger 2 is magnetized in advance in a utmost point, with the magnetic field being produced after coordinating electromagnet to start, the maintenance electric current of institute's palpus in order to kicker ram 2 startings and after reducing starting.The present invention can allow electromagnet start under reduced-current and under stroke far away effectively; the moving contact assembly 7 of earth leakage protective device is drawn to fixedly contact assembly 6; and keep making earth leakage protective device maintain electric conducting state, until electric leakage occurs, has a power failure or stops earth leakage protective device running.The effect of electromagnet is under "on" position, to produce magnetic force to retract hyte part, and fixedly contact assembly 6 is contacted with moving contact assembly 7, makes electrical equipment energising.The effect that the electric-leakage detection circuit of controlling magnet switching action is set is: after there is leaky; electric-leakage detection circuit will detect in time; control electromagnet turn-off current; under the effect of return spring; return assembly return; fixedly contact assembly 6 and moving contact assembly 7 disconnect, and make electricity consumption appliance cut-off, reach protection electrical appliance and protect user to avoid the object of getting an electric shock.Arrange permanent magnet 1 can reduce institute while starting must electric current and keep electromagnet attracting state the electric current of palpus, to can allow electromagnet keep running at a lower temperature, reach the cost that reduces power consumption, saves electromagnet and extend the electromagnet object in useful life.
The above is only a preferred embodiment of the present invention, is not used for limiting the present invention, and all its similar embodiment and approximate structure all should be covered by the protection range of patent of the present invention.
Claims (2)
1. permanent magnet-assisted starting leakage protector, comprise bearing and electromagnet, electromagnet and bearing are installed together, it is characterized in that: also comprise a permanent magnet, swing sheet, return assembly, fixing contact assembly, the electric-leakage detection circuit of moving contact assembly and the action of control magnet switching, moving contact assembly is assembled together with swing sheet one end, swing the sheet other end together with return assembled, return assembly and bearing are assembled together, the electric-leakage detection circuit of permanent magnet and the action of control magnet switching is assemblied in respectively in bearing, described electromagnet comprises plunger, secured core, coil rack and coil groups, coil groups and coil rack are assembled together, plunger and secured core are assembled together with coil rack respectively, permanent magnet and plunger outer end contact.
2. permanent magnet-assisted starting leakage protector according to claim 1, is characterized in that: described return assembly comprises a return spring, and return spring one end and bearing are inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010610664.1A CN102044387B (en) | 2010-12-29 | 2010-12-29 | Permanent magnet-assisted starting leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010610664.1A CN102044387B (en) | 2010-12-29 | 2010-12-29 | Permanent magnet-assisted starting leakage protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102044387A CN102044387A (en) | 2011-05-04 |
| CN102044387B true CN102044387B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010610664.1A Active CN102044387B (en) | 2010-12-29 | 2010-12-29 | Permanent magnet-assisted starting leakage protector |
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| CN (1) | CN102044387B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915299A (en) * | 2014-04-17 | 2014-07-09 | 东莞辰达电器有限公司 | Automatic reset ground fault breaker and control circuit structure of automatic reset ground fault breaker |
| CN105356415B (en) * | 2015-11-04 | 2018-03-30 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device with automatic power and power down function |
| CN106449326B (en) * | 2016-12-02 | 2019-04-26 | 余姚市嘉荣电子电器有限公司 | A kind of actuation maintenance structure of earth leakage protective device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815661A (en) * | 2005-02-05 | 2006-08-09 | 希珂尔电气有限公司 | Actuating mechanism of earth-fault circuit breaker for reducing energy consumption and its realizing method |
| CN2906903Y (en) * | 2006-04-24 | 2007-05-30 | 正泰集团股份有限公司 | Quick on/off electricity leakage protector |
| CN200956354Y (en) * | 2006-10-19 | 2007-10-03 | 通领科技集团有限公司 | Earth fault circuit breaker acting mechanism with reverse-wiring protection function |
| CN101609769A (en) * | 2008-06-17 | 2009-12-23 | 通领科技集团有限公司 | The positive negative pulse stuffing excitation actuating mechanism of ground-fault interrupter |
| CN201629280U (en) * | 2009-11-13 | 2010-11-10 | 江苏环宇电子有限公司 | Magnetic flux converter |
-
2010
- 2010-12-29 CN CN201010610664.1A patent/CN102044387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815661A (en) * | 2005-02-05 | 2006-08-09 | 希珂尔电气有限公司 | Actuating mechanism of earth-fault circuit breaker for reducing energy consumption and its realizing method |
| CN2906903Y (en) * | 2006-04-24 | 2007-05-30 | 正泰集团股份有限公司 | Quick on/off electricity leakage protector |
| CN200956354Y (en) * | 2006-10-19 | 2007-10-03 | 通领科技集团有限公司 | Earth fault circuit breaker acting mechanism with reverse-wiring protection function |
| CN101609769A (en) * | 2008-06-17 | 2009-12-23 | 通领科技集团有限公司 | The positive negative pulse stuffing excitation actuating mechanism of ground-fault interrupter |
| CN201629280U (en) * | 2009-11-13 | 2010-11-10 | 江苏环宇电子有限公司 | Magnetic flux converter |
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| Publication number | Publication date |
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| CN102044387A (en) | 2011-05-04 |
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Owner name: DONGGUAN CHENDA ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: DONGGUAN MINGLI ELECTRIC APPLIANCE PRODUCTS CO., LTD. Effective date: 20131210 |
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Effective date of registration: 20131210 Address after: 523000 Guangdong city of Dongguan Province Hong Mei Town Industrial Zone second Applicant after: Dongguan Chenda Electric Co.,Ltd. Address before: 523160 Guangdong city of Dongguan Province Hong Mei Town Industrial Zone Third Applicant before: DONGGUAN MINGLI ELECTRIC APPLIANCE PRODUCTS Co.,Ltd. |
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Address after: 523160 Hongmei town second industrial area, Dongguan, Guangdong Patentee after: DEFOND ELECTECH Co.,Ltd. Address before: 523000 Hongmei town second industrial area, Dongguan, Guangdong Patentee before: Dongguan Chenda Electric Co.,Ltd. |
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Effective date of registration: 20230810 Address after: 523000 Zhongyuan Road, Changping Town, Dongguan City, Guangdong Province Patentee after: DONGGUAN DACHANG INDUSTRIES Co.,Ltd. Address before: 523160 Guangdong city of Dongguan Province Hong Mei Town Industrial Zone second Patentee before: DEFOND ELECTECH Co.,Ltd. |