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CN104992860B - Arc protection safety cut-out - Google Patents

Arc protection safety cut-out Download PDF

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Publication number
CN104992860B
CN104992860B CN201510478031.2A CN201510478031A CN104992860B CN 104992860 B CN104992860 B CN 104992860B CN 201510478031 A CN201510478031 A CN 201510478031A CN 104992860 B CN104992860 B CN 104992860B
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CN
China
Prior art keywords
anode
cathode
block
movable contact
pedestal
Prior art date
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Active
Application number
CN201510478031.2A
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Chinese (zh)
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CN104992860A (en
Inventor
徐镑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Feiche Explosion-Proof Electrical Appliances Co Ltd
Original Assignee
Feice Explosion Proof Electric Co Ltd
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Filing date
Publication date
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Priority to CN201510478031.2A priority Critical patent/CN104992860B/en
Publication of CN104992860A publication Critical patent/CN104992860A/en
Application granted granted Critical
Publication of CN104992860B publication Critical patent/CN104992860B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

The present invention provides a kind of arc protection safety cut-out, including fixed contact pedestal, movable contact block;Anode, the cathode of mutually insulated are equipped on the fixed contact pedestal side by side;Cathode, the anode of mutually insulated are equipped on the movable contact block side by side;When the fixed contact pedestal, movable contact block are in electrical contact, the anode of fixed contact pedestal is in contact with the cathode of movable contact block, the cathode of fixed contact pedestal is in contact with the anode of movable contact block;The anode of the fixed contact pedestal, the anode of movable contact block are started to exchange fire line altogether, and the cathode of the fixed contact pedestal, the cathode of movable contact block connect zero curve altogether.The arc protection safety cut-out is not only simple in structure, and with good arc protection effect.

Description

Arc protection safety cut-out
Technical field
The present invention relates to distribution facility fields, are a kind of breakers particularly.
Background technology
In distribution facility field, breaker is a kind of infrastructure, is mainly used for carrying out break-make to circuit;Due to where it Circuit generally have larger operating current, therefore disconnect when be easy to generate electric arc, if do not taken arc extinguishing measure, then will burning Ruin breaker or power grid.
Therefore, arc extinguishing structure is a kind of basic structure of power circuit breaker, current breaker, mainly including air-flow, oil The various ways such as liquid arc extinguishing or vacuum extinction, magnetic quenching;Most of structure is sufficiently complex;In contrast, the knot of magnetic quenching Structure is slightly aobvious simple, but limited capacity, and in the case where electric current is excessive, still cannot ensure safety arc extinguishing.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of arc protection safety cut-out, which breaks safely Road device is not only simple in structure, and with good arc protection effect.
Technical solution is used by the present invention realizes technical purpose:The arc protection safety cut-out include fixed contact pedestal, Movable contact block;Anode, the cathode of mutually insulated are equipped on the fixed contact pedestal side by side;It is equipped with side by side on the movable contact block mutual Cathode, the anode of insulation;When the fixed contact pedestal, movable contact block are in electrical contact, the anode of fixed contact pedestal and the moon of movable contact block Pole is in contact, the cathode of fixed contact pedestal is in contact with the anode of movable contact block;The anode of the fixed contact pedestal, the sun of movable contact block It extremely starts to exchange fire altogether line, the cathode of the fixed contact pedestal, the cathode of movable contact block connect zero curve altogether.
Preferably, recessing the both sides of the track of fixed contact pedestal in the movable contact block, it is arranged with and is orthogonal to the rail The insulating heat-conductive grid in road.
Preferably, the arc protection safety cut-out includes pedestal, the fixed contact pedestal is fixed on the base, described Movable contact block is in sliding block shape, is matched in the sliding slot on the pedestal;There is insulation push-and-pull component on the movable contact block.
Preferably, the anode and cathode of the movable contact block are in short convex block shape, movable contact block is protruded from;And movable contact block Anode and cathode between there is the long convex block of insulating, the long convex block of insulation is by the space partition between anode and cathode;It is described The anode and cathode of fixed contact pedestal are absorbed in the short shrinkage pool on fixed contact pedestal;The short shrinkage pool on the movable contact block in short Convex block-like anode, cathode match;And there is the long shrinkage pool that insulate between the anode and cathode of the fixed contact pedestal, the insulation Long shrinkage pool matches with the long convex block of insulation;When the movable contact block, fixed contact pedestal are in electrical contact, the short convex block is complete It is inserted into the short shrinkage pool, the long convex block of insulation is fully inserted into the long shrinkage pool of insulation.
The beneficial effects of the present invention are:The arc protection safety cut-out is in the moment of disconnection, the sun of the fixed contact pedestal A positive field is generated between pole and the cathode of movable contact block, meanwhile, the cathode of fixed contact pedestal and the anode of movable contact block it Between generate a reversed electric field;For the positive field with reversed electric field due to close to each other, overlapping region is larger, largely On offseted, make to be not enough to be formed between fixed contact pedestal and movable contact block and maintain breakdown air electric field strength;So tool There is good arc protection effect;And this breaker structure is simple, and cost is relatively low.
Description of the drawings
Fig. 1 is the principle schematic of this arc protection safety cut-out.
Fig. 2 is the structure diagram of this arc protection safety cut-out embodiment one.
Fig. 3 is the structure diagram of this arc protection safety cut-out embodiment two.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples:
The principle of this arc protection safety cut-out is as shown in Figure 1, including fixed contact pedestal 1, movable contact block 2;The static contact Anode, the cathode of mutually insulated are equipped on seat 1 side by side;Cathode, the anode of mutually insulated are equipped on the movable contact block 2 side by side; When the fixed contact pedestal 1, movable contact block 2 are in electrical contact, the anode of fixed contact pedestal 1 is in contact with the cathode of movable contact block 2, stationary contact The cathode of headstock 1 is in contact with the anode of movable contact block 2;Anode, the anode of movable contact block 2 of the fixed contact pedestal 1 are started to exchange fire altogether Line, cathode, the cathode of movable contact block 2 of the fixed contact pedestal 1 connect zero curve altogether.When fixed contact pedestal 1, movable contact block 2 are as shown in Figure 1 When mutually pulling open, a positive field is generated between the anode of the fixed contact pedestal 1 and the cathode of movable contact block 2, meanwhile, stationary contact A reversed electric field is generated between the cathode of headstock 1 and the anode of movable contact block 2;The positive field is with reversed electric field due to phase Mutually close, overlapping region is larger, is largely offseted, and makes to be not enough to be formed between fixed contact pedestal 1 and movable contact block 2 And maintain the electric field strength of breakdown air;So with good arc protection effect.
Fig. 2 show the schematic diagram of this arc protection safety cut-out embodiment one, wherein, the arc protection safety cut-out Including pedestal 3, the fixed contact pedestal 1 is fixed on the pedestal 3, and the movable contact block 2 is in sliding block shape, is matched with the pedestal 3 On sliding slot 31 in;There is insulation push-and-pull component 21 on the movable contact block 2;Manually or electrically mechanism pushes and pulls the push-and-pull portion Part 21, you can movable contact block 2 is made to be switched on or switched off with fixed contact pedestal 1.In embodiment one, stationary contact is recessed in the movable contact block 2 The both sides of the track of headstock 1, that is, in 31 both sides of sliding slot, it is arranged with the insulating heat-conductive grid 4 for being orthogonal to sliding slot 31;Institute The one side of insulating heat-conductive grid 4 is stated close to the anode and cathode of the fixed contact pedestal 1.Pass through setting for the insulating heat-conductive grid 4 It puts, even if in fixed contact pedestal 1,2 separation process of movable contact block, generates electric arc, it is inevitable to generate two electricity simultaneously due to symmetry The opposite electric arc in direction is flowed, since reverse current is mutually exclusive, causes two electric arcs generated outside lateral bend simultaneously, into institute It states in insulating heat-conductive grid 4, electric arc is made to be separated and be cooled down by many places, loses maintenance condition, so as to more reliably ensure arc extinguishing Effect.
Embodiment two:
In embodiment two shown in Fig. 3, with embodiment one the difference is that:The insulating heat-conductive grid 4 is removed, And employ another technical measures for further promoting arc quenching effect;I.e.:The anode and cathode of the movable contact block 2 are in short convex Bulk protrudes from movable contact block 2;And there is the long convex block 20 that insulate between the anode and cathode of movable contact block 2, the insulation length is convex Block 20 is by the space partition between anode and cathode;The anode and cathode of the fixed contact pedestal 1 are absorbed in short recessed on fixed contact pedestal In hole 100;The short shrinkage pool 100 on the movable contact block 2 in short convex block-like anode, cathode with matching;It is and described quiet There is the long shrinkage pool 10 that insulate, the long shrinkage pool 10 of insulation and long 20 phase of convex block of insulation between the anode and cathode of contact base 1 Matching;When the movable contact block 2, fixed contact pedestal 1 are in electrical contact, the short convex block is fully inserted into the short shrinkage pool 100, institute The long convex block 20 of insulation is stated to be fully inserted into the long shrinkage pool 10 of insulation.
The advantages of embodiment two, is:Firstly, since the spatial character of electric field, between the positive anti-electric field of foregoing a pair It interacts from the influence of the long convex block 20 of insulation and the long shrinkage pool 10 that insulate;On this basis, in the long convex block of insulation 20 before long shrinkage pool 10 is insulated in complete extraction, and anode and cathode on fixed contact pedestal 1 are completely isolated in the horizontal, moving contact The anode and cathode of seat 2 are also completely isolated in the horizontal, even if at this point, there are electric arc between fixed contact pedestal 1, movable contact block 2, The electric arc can not also be migrated by air, make that between anode and cathode on fixed contact pedestal 1 electric arc can not be formed(Once being formed, Since the position of the anode and cathode immobilizes, then it will be permanent electric arc, and necessarily burn breaker), on movable contact block 2 Also electric arc can not be formed between anode and cathode;As long as long 20 length of convex block of insulation is enough, then fixed contact pedestal 1, moving contact It even if forming electric arc between seat 2, will also be pulled off, and not migrated between the anode and cathode of fixed contact pedestal 1 before breaking, It does not migrate between the anode and cathode of movable contact block 2.Therefore, security, which has been got back, further improves.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.

Claims (4)

1. a kind of arc protection safety cut-out, including fixed contact pedestal(1), movable contact block(2);The fixed contact pedestal(1)It is upper arranged side by side Anode, cathode equipped with mutually insulated;The movable contact block(2)Upper cathode, the anode for being equipped with mutually insulated side by side;The stationary contact Headstock(1), movable contact block(2)When in electrical contact, fixed contact pedestal(1)Anode and movable contact block(2)Cathode be in contact, stationary contact Headstock(1)Cathode and movable contact block(2)Anode be in contact;It is characterized in that:The fixed contact pedestal(1)Anode, dynamic touch Headstock(2)Anode start to exchange fire altogether line, the fixed contact pedestal(1)Cathode, movable contact block(2)Cathode connect zero curve altogether.
2. arc protection safety cut-out according to claim 1, it is characterised in that:The arc protection safety cut-out includes Pedestal(3), the fixed contact pedestal(1)It is fixed on the pedestal(3)On, the movable contact block(2)In sliding block shape, the base is matched with Sliding slot on seat(31)It is interior;The movable contact block(2)It is upper that there is insulation push-and-pull component(21).
3. arc protection safety cut-out according to claim 1 or 2, it is characterised in that:In the movable contact block(2)It recesses Fixed contact pedestal(1)Track both sides, be arranged with the insulating heat-conductive grid for being orthogonal to the track(4).
4. arc protection safety cut-out according to claim 1 or 2, it is characterised in that:The movable contact block(2)Anode With cathode in short convex block shape, movable contact block is protruded from(2);And movable contact block(2)Anode and cathode between have insulation length it is convex Block(20), the long convex block of insulation(20)By the space partition between anode and cathode;The fixed contact pedestal(1)Anode and the moon Pole is absorbed in the short shrinkage pool on fixed contact pedestal(100)It is interior;The short shrinkage pool(100)With the movable contact block(2)On be in short convex block Anode, the cathode of shape match;And the fixed contact pedestal(1)Anode and cathode between there is the long shrinkage pool of insulating(10), it is described Insulate long shrinkage pool(10)With the long convex block of insulation(20)Match;When the movable contact block(2), fixed contact pedestal(1)It is electrically connected with When touching, the short convex block is fully inserted into the short shrinkage pool(100)It is interior, the long convex block of insulation(20)It is fully inserted into the insulation length Shrinkage pool(10)It is interior.
CN201510478031.2A 2015-08-07 2015-08-07 Arc protection safety cut-out Active CN104992860B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510478031.2A CN104992860B (en) 2015-08-07 2015-08-07 Arc protection safety cut-out

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510478031.2A CN104992860B (en) 2015-08-07 2015-08-07 Arc protection safety cut-out

Publications (2)

Publication Number Publication Date
CN104992860A CN104992860A (en) 2015-10-21
CN104992860B true CN104992860B (en) 2018-05-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510478031.2A Active CN104992860B (en) 2015-08-07 2015-08-07 Arc protection safety cut-out

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429846A (en) * 1944-03-24 1947-10-28 Gen Electric Electric circuit interrupter
CA1113983A (en) * 1978-03-17 1981-12-08 John A. Wafer Circuit breaker utilizing improved arc chambers
KR100402234B1 (en) * 2001-03-27 2003-10-17 한국전기연구원 Bidirectional operation type gas circuit breaker
CN100483597C (en) * 2006-01-25 2009-04-29 大全集团有限公司 Dual-interruption point breaker
CN2932611Y (en) * 2006-07-21 2007-08-08 大全集团有限公司 Shielding and isolating breaker
CN201966159U (en) * 2011-01-10 2011-09-07 北京人民电器厂有限公司 Multi-break circuit breaker
JP5809443B2 (en) * 2011-05-19 2015-11-10 富士電機株式会社 Contact mechanism and electromagnetic contactor using the same
CN202058676U (en) * 2011-05-23 2011-11-30 温州罗格朗电器有限公司 Double-breaking-point breaker

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Xu Bang

Inventor before: Ma Renhuan

CB03 Change of inventor or designer information
GR01 Patent grant
GR01 Patent grant
TA01 Transfer of patent application right

Effective date of registration: 20180428

Address after: 314000 388 Road, Seven Star Town, Nanhu District, Jiaxing, Zhejiang

Applicant after: Feice Explosion Proof Electric Co., Ltd.

Address before: 215000 room 2107, Wuzhong shopping center, 388 east Wu South Road, Wuzhong District, Suzhou, Jiangsu.

Applicant before: Ma Renhuan

TA01 Transfer of patent application right
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: Jiaxing City, Zhejiang province 314000 Nanhu District town of seven road No. 388

Patentee after: Feiche Explosion-proof Electrical Appliances Co., Ltd.

Address before: Jiaxing City, Zhejiang province 314000 Nanhu District town of seven road No. 388

Patentee before: Feice Explosion Proof Electric Co., Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Anti arc safety circuit breaker

Effective date of registration: 20220420

Granted publication date: 20180518

Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch

Pledgor: Feiche Explosion-proof Electrical Appliances Co.,Ltd.

Registration number: Y2022980004530

PE01 Entry into force of the registration of the contract for pledge of patent right