CN103094016B - Hydraulic electromagnetic circuit breaker for preventing thunder - Google Patents
Hydraulic electromagnetic circuit breaker for preventing thunder Download PDFInfo
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- CN103094016B CN103094016B CN201310045064.9A CN201310045064A CN103094016B CN 103094016 B CN103094016 B CN 103094016B CN 201310045064 A CN201310045064 A CN 201310045064A CN 103094016 B CN103094016 B CN 103094016B
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- electromagnet
- moving contact
- framework
- circuit breaker
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Abstract
The invention discloses a hydraulic electromagnetic circuit breakerfor preventing thunder. The hydraulic electromagnetic circuit breaker for preventing thunder comprises a magnetic framework, an electromagnet which is fixedly arranged on one side of the magnetic framework, an armature, a rotating part and a moving contact, wherein the armature, the rotating part and the moving contact are respectively mounted on the magnetic framework in a hinged joint mode. The electromagnet is fixedly connected with a connecting arm which stretches from the side direction of the lower portion of the magnetic framework. The armature and the moving contact is connected with two ends of the rotating part in a hinged joint mode. A spring is arranged between the moving contact and the magnetic framework, wherein the spring is used for driving the contact head end of the moving contact and is matched with a fixed contact of the breaker in an abutt joint mode. The armature is driven by the electromagnet so as to enable the moving contact to be separated from the fixed contact. The magnetic framework is further provided with a demagnetization sheet which is parallel to the armature when the armature keeps a static state. The distance between the demagnetization sheet and the armature is 0.01mm-5.00mm. The hydraulic electromagnetic circuit breaker for preventing thunder can reach the impact current of 8/20 microsecond, 15 kilo ampere (KA) and no action occurs. The hydraulic electromagnetic circuit breaker for preventing thunder only adds the demagnetization sheet to the prior breaker, so structure is simple, processing becomes convenient and effects are obvious.
Description
Technical field
The invention belongs to lightning protection breaker technical field, be specifically related to a kind of lightning protection hydraulic electromagnetic circuit breaker anti-lightning strike for communication apparatus internal wiring.
Background technology
The current lightning protection hydraulic electromagnetic circuit breaker for the protection of communication apparatus internal wiring on the market can only stand 8/20 μ s; the impulse current of 10KA and being failure to actuate; but due to the particular/special requirement of some communication power distribution cabinet internal wiring protection; need anti-lightning strike lightning protection hydraulic electromagnetic circuit breaker at 8/20 μ s; 15KA(as shown in Figure 3, T
1/ T
2=8/20 μ s, T
1for the wave head time, T
2be half time to peak, I
peakfor peak current) impulse current and be failure to actuate, ensure the continuity that whole power-supply system is powered, but at present such circuit breaker on the market can not reach requirement.Cannot ensure, at 8/20 μ s, to be failure to actuate under 15KA rush of current.
Summary of the invention
The object of the invention is: the deficiency existed for prior art, a kind of lightning protection hydraulic electromagnetic circuit breaker is provided, 8/20 μ s can be stood, the impulse current of 15KA and being failure to actuate, to meet the designing requirement of communication apparatus internal wiring, ensure the continuity that communication apparatus is powered.
For realizing the object of the present invention, be achieved by the following technical solutions: a kind of lightning protection hydraulic electromagnetic circuit breaker, includes the framework of magnetic conduction, is fixedly installed on the electromagnet of framework side, is hingedly mounted on the armature on framework, revolving part and moving contact respectively; Electromagnet is fixedly connected with to the linking arm extended with framework lower side; Armature, moving contact are hinged and connected with the two ends of revolving part respectively, the fixed contact being provided with the contact end and circuit breaker of ordering about moving contact between moving contact with framework coordinates the spring offseted, armature is departed to make moving contact and fixed contact by solenoid actuated, described framework is also provided with nullification magnetic sheet, described nullification magnetic sheet is in the side that armature deviates from electromagnet, and nullification magnetic sheet is when the not operating state of armature and armature keeping parallelism, the distance between nullification magnetic sheet and armature is 0.01mm-5.00mm.
Preferably: the iron core of described electromagnet is provided with pole shoe near the end of armature one end.
Preferably: described nullification magnetic sheet is permeability magnetic material.
Preferably: described framework is provided with link slot, described nullification magnetic sheet to insert in link slot and fixes with frame welding.This ensure that nullification magnetic sheet and framework stable connection.
Compared with prior art, the invention has the beneficial effects as follows: owing to arranging nullification magnetic sheet on framework, impulse current moment is flow through at electromagnet, magnetic field force between nullification magnetic sheet and armature is utilized to offset partial magnetic field power between electromagnet and armature, this lightning protection hydraulic electromagnetic circuit breaker is reached and stands 8/20 μ s, the impulse current of 15KA and being failure to actuate.The present invention only adds nullification magnetic sheet on original circuit breaker foundation, and structure is simple, easy to process, Be very effective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the not operating state of moving contact of the present invention.
Fig. 2 is the structural representation of moving contact operate condition of the present invention.
Fig. 3 is thunder and lightning waveform sketch.
1, electromagnet; 2, pole shoe; 3, armature; 4, nullification magnetic sheet; 5, framework; 51, link slot; 52, linking arm; 6, revolving part; 7, moving contact; 8, fixed contact.
Embodiment
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
Embodiment 1
According to Fig. 1 and Fig. 2, a kind of lightning protection hydraulic electromagnetic circuit breaker described in the present embodiment, includes the framework 5 of magnetic conduction, is fixedly installed on the electromagnet 1 of framework 5 side, is hingedly mounted on the armature 3 on framework 5, revolving part 6 and moving contact 7 respectively; Electromagnet 1 is fixedly connected with to the linking arm 52 extended with framework 5 lower side; Armature 3, moving contact 7 are hinged and connected with the two ends of revolving part 6 respectively, the fixed contact 8 being provided with contact end and the circuit breaker ordering about moving contact 7 between moving contact 7 with framework 5 coordinates the spring offseted, armature 3 is driven moving contact 7 and fixed contact 8 are departed from by electromagnet 1, described framework 5 is also provided with nullification magnetic sheet 4, described nullification magnetic sheet 4 is in the side that armature 3 deviates from electromagnet 1, and nullification magnetic sheet 4 is when armature 3 not operating state and armature 3 keeping parallelism, the distance between nullification magnetic sheet 4 and armature 3 is 0.01mm-5.00mm.Nullification magnetic sheet 4 and armature 3 close together, to ensure having enough large magnetic field force between them.
The iron core of described electromagnet 1 is provided with pole shoe 2 near the end of armature 3 one end.
Described nullification magnetic sheet 4 is permeability magnetic material.
Described framework 5 is provided with link slot 51, and described nullification magnetic sheet 4 to insert in link slot 51 and is welded and fixed with framework 5.This ensure that nullification magnetic sheet 4 and framework 5 stable connection.
Described nullification magnetic sheet 4 and the area of armature 3 opposite face are the 1/2-2/3 of armature 3 and pole shoe 2 opposite face area.
When this lightning protection hydraulic electromagnetic circuit breaker normally works, moving contact 7 is closely inconsistent with fixed contact 8.8/20 μ s is flow through in the coil of the electromagnet 1 of circuit breaker, during the impulse current of 15KA, electromagnet 1 produces very strong magnetic field, forms a magnetic confining field (as shown in phantom in Figure 2) between electromagnet 1, framework 5 and armature 3, and armature 3 produces the trend with pole shoe 2 adhesive of electromagnet 1 end; Meanwhile, same formation one magnetic confining field between electromagnet 1, framework 5 and nullification magnetic sheet 4, nullification magnetic sheet 4 attracts with armature 3 phase, and in 8/20 μ s, stop armature 3 to the motion of pole shoe 2 direction, namely moving contact 7 and fixed contact 8 are kept closed; 8/20 μ s is greater than when the impulse current duration, magnetic field gravitation between electromagnet 1 with armature 3 is greater than the magnetic field gravitation between armature 3 with nullification magnetic sheet 4 and is connected the indirect pulling force sum of spring of moving contact 7, then armature 3 action, with pole shoe 2 adhesive, armature 3 drives moving contact 7 to be separated with fixed contact 8 by revolving part 6 simultaneously.Electromagnet 1 magnetic field disappears thereupon, and armature 3 resets under spring tension effect, and moving contact 7 again offsets with fixed contact 8 and makes circuit communication.
Embodiment 2
The difference of the present embodiment and embodiment 1 is only: one-body molded on described framework 5 have described nullification magnetic sheet 4.
Claims (3)
1. a lightning protection hydraulic electromagnetic circuit breaker, includes the framework of magnetic conduction, is fixedly installed on the electromagnet of framework side, is hingedly mounted on the armature on framework, revolving part and moving contact respectively; Electromagnet is fixedly connected with to the linking arm extended with framework lower side; Armature, moving contact are hinged and connected with the two ends of revolving part respectively, the fixed contact being provided with the contact end and circuit breaker of ordering about moving contact between moving contact with framework coordinates the spring offseted, armature is departed to make moving contact and fixed contact by solenoid actuated, it is characterized in that: described framework is also provided with nullification magnetic sheet, described nullification magnetic sheet is in the side that armature deviates from electromagnet, and nullification magnetic sheet is when the not operating state of armature and armature keeping parallelism, the distance between nullification magnetic sheet and armature is 0.01mm-5.00mm;
The iron core of described electromagnet is provided with pole shoe near the end of armature one end;
The area of described nullification magnetic sheet and armature opposite face is the 1/2-2/3 of armature and pole shoe opposite face area;
When this lightning protection hydraulic electromagnetic circuit breaker normally works, moving contact and fixed contact are closely inconsistent; In the magnet spool of circuit breaker, flow through 8/20 μ s, during the impulse current of 15KA, electromagnet produces magnetic field, forms a magnetic confining field between electromagnet, framework and armature, and armature produces the trend with the pole shoe adhesive of electromagnet end; Meanwhile, same formation one magnetic confining field between electromagnet, framework and nullification magnetic sheet, nullification magnetic sheet attracts mutually with armature, and in 8/20 μ s, stop armature to the motion of pole shoe direction, namely moving contact and fixed contact are kept closed; 8/20 μ s is greater than when the impulse current duration, magnetic field gravitation between electromagnet with armature is greater than the magnetic field gravitation between armature with nullification magnetic sheet and is connected the indirect pulling force sum of spring of moving contact, then armature movement, with pole shoe adhesive, armature drives moving contact to be separated with fixed contact by revolving part simultaneously; Electromagnet magnetic field disappears thereupon, and armature resets under spring tension effect, and moving contact again offsets with fixed contact and makes circuit communication.
2. lightning protection hydraulic electromagnetic circuit breaker according to claim 1, is characterized in that: described nullification magnetic sheet is permeability magnetic material.
3. lightning protection hydraulic electromagnetic circuit breaker according to claim 1, is characterized in that: described framework is provided with link slot, and described nullification magnetic sheet to insert in link slot and fixes with frame welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310045064.9A CN103094016B (en) | 2013-02-01 | 2013-02-01 | Hydraulic electromagnetic circuit breaker for preventing thunder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310045064.9A CN103094016B (en) | 2013-02-01 | 2013-02-01 | Hydraulic electromagnetic circuit breaker for preventing thunder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103094016A CN103094016A (en) | 2013-05-08 |
| CN103094016B true CN103094016B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310045064.9A Active CN103094016B (en) | 2013-02-01 | 2013-02-01 | Hydraulic electromagnetic circuit breaker for preventing thunder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771919B (en) * | 2016-12-22 | 2020-01-31 | 国网上海市电力公司 | Pulse current waveform half-peak time-width-phase spectrogram construction method and device |
| CN108242372A (en) * | 2018-02-28 | 2018-07-03 | 首瑞（天津）电气设备有限公司 | The electromagnetic trip trigger mechanism and breaker of a kind of breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740650A (en) * | 1971-04-19 | 1973-06-19 | Texas Instruments Inc | Electromagnetic switch |
| CN101236864A (en) * | 2007-02-01 | 2008-08-06 | 施耐德电器工业公司 | Voltage surge protection device with a movable contact comprising selective disconnection means against short-circuits |
| CN201655709U (en) * | 2010-03-11 | 2010-11-24 | 浙江百事宝电器有限公司 | Monopole hydraulic-pressure electromagnetic-type circuit breaker |
| CN203026465U (en) * | 2013-02-01 | 2013-06-26 | 浙江百事宝电器有限公司 | Hydraulic electromagnetic breaker |
-
2013
- 2013-02-01 CN CN201310045064.9A patent/CN103094016B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740650A (en) * | 1971-04-19 | 1973-06-19 | Texas Instruments Inc | Electromagnetic switch |
| CN101236864A (en) * | 2007-02-01 | 2008-08-06 | 施耐德电器工业公司 | Voltage surge protection device with a movable contact comprising selective disconnection means against short-circuits |
| CN201655709U (en) * | 2010-03-11 | 2010-11-24 | 浙江百事宝电器有限公司 | Monopole hydraulic-pressure electromagnetic-type circuit breaker |
| CN203026465U (en) * | 2013-02-01 | 2013-06-26 | 浙江百事宝电器有限公司 | Hydraulic electromagnetic breaker |
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| CN103094016A (en) | 2013-05-08 |
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Address after: Dayuancun street 323000 Zhejiang province Lishui Shuige Industrial Zone No. 101 Patentee after: ZHEJIANG BSB ELECTRICAL APPLIANCES CO.,LTD. Address before: Dayuancun street 323000 Zhejiang province Lishui Shuige Industrial Zone No. 101 Patentee before: Zhejiang BSB Electrical Appliances Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Hydraulic electromagnetic circuit breaker for lightning protection Effective date of registration: 20230802 Granted publication date: 20141231 Pledgee: Agricultural Bank of China Limited Lishui Development Zone Sub branch Pledgor: ZHEJIANG BSB ELECTRICAL APPLIANCES CO.,LTD. Registration number: Y2023330001620 |