CN104992860A - Electric arc prevention safety breaker - Google Patents
Electric arc prevention safety breaker Download PDFInfo
- Publication number
- CN104992860A CN104992860A CN201510478031.2A CN201510478031A CN104992860A CN 104992860 A CN104992860 A CN 104992860A CN 201510478031 A CN201510478031 A CN 201510478031A CN 104992860 A CN104992860 A CN 104992860A
- Authority
- CN
- China
- Prior art keywords
- anode
- pedestal
- movable contact
- negative electrode
- contact block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010891 electric arc Methods 0.000 title abstract description 14
- 230000002265 prevention Effects 0.000 title abstract 3
- 238000009413 insulation Methods 0.000 claims abstract description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 69
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract 7
- 230000005684 electric field Effects 0.000 description 7
- 230000000171 quenching effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention provides an electric arc prevention safety breaker, comprising a static contact seat and a moving contact seat; the static contact seat is provided with an anode and a cathode which are insulation and parallel to each other; the moving contact seat is provided with a cathode and an anode which are insulation and parallel to each other ; when the static contact seat and the moving contact seat electrically contact, the anode of the static contact seat and the cathode of the moving contact seat are in contact, and the cathode of the static contact seat and the anode contact seat are in contact; the anode of the static contact seat and the anode of the a moving contact seat are communally connected to one live wire; and the cathode of the static contact seat and the cathode of the moving contact seat are communally connected to a zero wire. The electric arc prevention safety breaker is not only simple in the structure, but also is good in preventing the electric arc.
Description
Technical field
The present invention relates to distribution facility field, especially, is a kind of circuit breaker.
Background technology
In distribution facility field, circuit breaker is a kind of infrastructure, is mainly used in carrying out break-make to circuit; Because the circuit at its place generally has larger operating current, as easy as rolling off a log generation electric arc when therefore disconnecting, if do not taked arc extinguishing measure, then will burn circuit breaker or electrical network.
Therefore, arc extinguishing structure is a kind of basic structure of power circuit breaker, and current circuit breaker mainly comprises air-flow, fluid arc extinguishing, or the various ways such as vacuum extinction, magnetic quenching; Major part structure is very complicated; By contrast, the structure of magnetic quenching is slightly aobvious simple, but limited capacity, when electric current is excessive, still can not ensure safety arc extinguishing.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of arc protection safety cut-out, this arc protection safety cut-out not only structure is simple, and has good arc protection effect.
The technical scheme that actualizing technology object of the present invention adopts is: this arc protection safety cut-out comprises fixed contact pedestal, movable contact block; Described fixed contact pedestal is provided with side by side anode, the negative electrode of mutually insulated; Described movable contact block is provided with side by side negative electrode, the anode of mutually insulated; When described fixed contact pedestal, movable contact block are in electrical contact, the anode of fixed contact pedestal contacts with the negative electrode of movable contact block, the negative electrode of fixed contact pedestal contacts with the anode of movable contact block; The anode of described fixed contact pedestal, the anode of movable contact block are started to exchange fire line altogether, and the negative electrode of described fixed contact pedestal, the negative electrode of movable contact block be connecting to neutral line altogether.
As preferably, recess the both sides of the track of fixed contact pedestal at described movable contact block, be arranged with the insulating heat-conductive grid being orthogonal to described track.
As preferably, described arc protection safety cut-out comprises pedestal, and described fixed contact pedestal is fixing on the base, and described movable contact block is slide block shape, is matched with in the chute on described pedestal; Described movable contact block have insulation push-and-pull parts.
As preferably, the anode of described movable contact block and negative electrode are short projection shape, protrude from movable contact block; And there is between the anode of movable contact block and negative electrode the long projection of insulation, the long projection of described insulation is by the space partition between anode and negative electrode; The anode of described fixed contact pedestal and negative electrode are absorbed in the short shrinkage pool on fixed contact pedestal; The anode in short projection shape on described short shrinkage pool and described movable contact block, negative electrode match; And there is between the anode of described fixed contact pedestal and negative electrode the long shrinkage pool of insulation, the long shrinkage pool of described insulation and the long projection of described insulation match; When described movable contact block, fixed contact pedestal are in electrical contact, described short projection inserts in described short shrinkage pool completely, and the long projection of described insulation inserts in the long shrinkage pool of described insulation completely.
Beneficial effect of the present invention is: the moment that this arc protection safety cut-out disconnects, a positive field is produced between the anode of described fixed contact pedestal and the negative electrode of movable contact block, meanwhile, a reversed electric field is produced between the negative electrode of fixed contact pedestal and the anode of movable contact block; Described positive field and reversed electric field are due to close to each other, and overlapping region is comparatively large, is offseted to a great extent, makes to be not enough between fixed contact pedestal and movable contact block be formed and maintain the electric field strength puncturing air; So have good arc protection effect; And this breaker structure is simple, and cost is lower.
Accompanying drawing explanation
Fig. 1 is the principle schematic of this arc protection safety cut-out.
Fig. 2 is the structural representation of this arc protection safety cut-out embodiment one.
Fig. 3 is the structural representation of this arc protection safety cut-out embodiment two.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
The principle of this arc protection safety cut-out as shown in Figure 1, comprises fixed contact pedestal 1, movable contact block 2; Described fixed contact pedestal 1 is provided with side by side anode, the negative electrode of mutually insulated; Described movable contact block 2 is provided with side by side negative electrode, the anode of mutually insulated; When described fixed contact pedestal 1, movable contact block 2 are in electrical contact, the anode of fixed contact pedestal 1 contacts with the negative electrode of movable contact block 2, the negative electrode of fixed contact pedestal 1 contacts with the anode of movable contact block 2; The anode of described fixed contact pedestal 1, the anode of movable contact block 2 are started to exchange fire line altogether, and the negative electrode of described fixed contact pedestal 1, the negative electrode of movable contact block 2 be connecting to neutral line altogether.When fixed contact pedestal 1, movable contact block 2 pull open as shown in Figure 1 mutually, produce a positive field between the anode of described fixed contact pedestal 1 and the negative electrode of movable contact block 2, meanwhile, between the negative electrode of fixed contact pedestal 1 and the anode of movable contact block 2, produce a reversed electric field; Described positive field and reversed electric field are due to close to each other, and overlapping region is comparatively large, is offseted to a great extent, makes be not enough to be formed between fixed contact pedestal 1 and movable contact block 2 and maintain the electric field strength puncturing air; So have good arc protection effect.
Figure 2 shows that the schematic diagram of this arc protection safety cut-out embodiment one, wherein, described arc protection safety cut-out comprises pedestal 3, and described fixed contact pedestal 1 is fixed on this pedestal 3, and described movable contact block 2, in slide block shape, is matched with in the chute 31 on described pedestal 3; Described movable contact block 2 have insulation push-and-pull parts 21; Manually or these push-and-pull parts 21 of motor drive mechanism push-and-pull, movable contact block 2 and fixed contact pedestal 1 can be made to be switched on or switched off.In embodiment one, recess the both sides of the track of fixed contact pedestal 1 at described movable contact block 2, that is in described chute 31 both sides, be arranged with the insulating heat-conductive grid 4 being orthogonal to chute 31; Anode and the negative electrode of described fixed contact pedestal 1 are pressed close in the side of described insulating heat-conductive grid 4.By the setting of described insulating heat-conductive grid 4, even if in fixed contact pedestal 1, movable contact block 2 separation process, create electric arc, due to symmetry, the electric arc that inevitable generation simultaneously two senses of current are contrary, because reverse current repels mutually, cause two electric arcs produced to bend laterally simultaneously, enter in described insulating heat-conductive grid 4, make electric arc be cut off by many places and cool, lose maintenance condition, thus ensure arc quenching effect more reliably.
Embodiment two:
In the embodiment two shown in Fig. 3, be with the difference of embodiment one: remove described insulating heat-conductive grid 4, and have employed the another kind of technical measures promoting arc quenching effect further; That is: the anode of described movable contact block 2 and negative electrode are short projection shape, protrude from movable contact block 2; And there is between the anode of movable contact block 2 and negative electrode the long projection 20 of insulation, the long projection 20 of described insulation is by the space partition between anode and negative electrode; The anode of described fixed contact pedestal 1 and negative electrode are absorbed in the short shrinkage pool 100 on fixed contact pedestal; Described short shrinkage pool 100 matches with the anode in short projection shape on described movable contact block 2, negative electrode; And there is between the anode of described fixed contact pedestal 1 and negative electrode the long shrinkage pool 10 of insulation, the long shrinkage pool of described insulation 10 and the long projection 20 of described insulation match; When described movable contact block 2, fixed contact pedestal 1 are in electrical contact, described short projection inserts in described short shrinkage pool 100 completely, and the long projection of described insulation 20 inserts in the long shrinkage pool 10 of described insulation completely.
The advantage of this embodiment two is: first, and due to the spatial character of electric field, the interaction between aforesaid a pair positive anti-electric field is not by the impact of the long projection of described insulation 20 with the long shrinkage pool 10 of insulation, on this basis, at the long projection of described insulation 20 before extracting the long shrinkage pool 10 of insulation completely, anode on fixed contact pedestal 1 and negative electrode are completely isolated in the horizontal, anode and the negative electrode of movable contact block 2 are also completely isolated in the horizontal, now, even if fixed contact pedestal 1, electric arc is there is between movable contact block 2, this electric arc also cannot be migrated by air, make cannot form electric arc between the anode on fixed contact pedestal 1 and negative electrode (once be formed, because the position of this anode and negative electrode immobilizes, to be then permanent electric arc, circuit breaker must be burnt), anode on movable contact block 2 and also cannot form electric arc between negative electrode, as long as described insulation long projection 20 length is enough, even if then form electric arc between fixed contact pedestal 1, movable contact block 2, also will be pulled off, and between the anode not migrating to fixed contact pedestal 1 before breaking and negative electrode, between the anode also not migrating to movable contact block 2 and negative electrode.Therefore, fail safe has been got back further raising.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. an arc protection safety cut-out, comprises fixed contact pedestal (1), movable contact block (2); Described fixed contact pedestal (1) is provided with side by side anode, the negative electrode of mutually insulated; Described movable contact block (2) is provided with side by side negative electrode, the anode of mutually insulated; When described fixed contact pedestal (1), movable contact block (2) are in electrical contact, the anode of fixed contact pedestal (1) contacts with the negative electrode of movable contact block (2), and the negative electrode of fixed contact pedestal (1) contacts with the anode of movable contact block (2); The anode of described fixed contact pedestal (1), the anode of movable contact block (2) are started to exchange fire line altogether, and the negative electrode of described fixed contact pedestal (1), the negative electrode of movable contact block (2) be connecting to neutral line altogether.
2. arc protection safety cut-out according to claim 1, it is characterized in that: described arc protection safety cut-out comprises pedestal (3), described fixed contact pedestal (1) is fixed on this pedestal (3), and described movable contact block (2), in slide block shape, is matched with in the chute (31) on described pedestal; Described movable contact block (2) has insulation push-and-pull parts (21).
3. arc protection safety cut-out according to claim 1 and 2, is characterized in that: the both sides of recessing the track of fixed contact pedestal (1) at described movable contact block (2), is arranged with the insulating heat-conductive grid (4) being orthogonal to described track.
4. arc protection safety cut-out according to claim 1 and 2, is characterized in that: the anode of described movable contact block (2) and negative electrode are short projection shape, protrudes from movable contact block (2); And there is between the anode of movable contact block (2) and negative electrode the long projection of insulation (20), the long projection of described insulation (20) is by the space partition between anode and negative electrode; The anode of described fixed contact pedestal (1) and negative electrode are absorbed in the short shrinkage pool (100) on fixed contact pedestal; Described short shrinkage pool (100) matches with the anode in short projection shape on described movable contact block (2), negative electrode; And there is between the anode of described fixed contact pedestal (1) and negative electrode the long shrinkage pool of insulation (10), the long shrinkage pool of described insulation (10) and the long projection of described insulation (20) match; When described movable contact block (2), fixed contact pedestal (1) are in electrical contact, described short projection inserts in described short shrinkage pool (100) completely, and the long projection of described insulation (20) inserts in the long shrinkage pool of described insulation (10) completely.
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 true CN104992860A (en) | 2015-10-21 |
| CN104992860B CN104992860B (en) | 2018-05-18 |
Family
ID=54304662
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104992860B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589277A (en) * | 1944-03-24 | 1947-06-16 | British Thomson Houston Co Ltd | Improvements in and relating to arc extinguishing structures for electric circuit interrupters |
| AU4480979A (en) * | 1978-03-17 | 1979-09-20 | Westinghouse Electric Corporation | Circuit breaker utilizing improved arc chambers 0 |
| KR20020076019A (en) * | 2001-03-27 | 2002-10-09 | 한국전기연구원 | Bidirectional operation type gas circuit breaker |
| CN101009177A (en) * | 2006-01-25 | 2007-08-01 | 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 |
| CN202058676U (en) * | 2011-05-23 | 2011-11-30 | 温州罗格朗电器有限公司 | Double-breaking-point breaker |
| CN103140910A (en) * | 2011-05-19 | 2013-06-05 | 富士电机株式会社 | Contact mechanism and electromagnetic contactor using same |
-
2015
- 2015-08-07 CN CN201510478031.2A patent/CN104992860B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589277A (en) * | 1944-03-24 | 1947-06-16 | British Thomson Houston Co Ltd | Improvements in and relating to arc extinguishing structures for electric circuit interrupters |
| AU4480979A (en) * | 1978-03-17 | 1979-09-20 | Westinghouse Electric Corporation | Circuit breaker utilizing improved arc chambers 0 |
| KR20020076019A (en) * | 2001-03-27 | 2002-10-09 | 한국전기연구원 | Bidirectional operation type gas circuit breaker |
| CN101009177A (en) * | 2006-01-25 | 2007-08-01 | 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 |
| CN103140910A (en) * | 2011-05-19 | 2013-06-05 | 富士电机株式会社 | Contact mechanism and electromagnetic contactor using same |
| CN202058676U (en) * | 2011-05-23 | 2011-11-30 | 温州罗格朗电器有限公司 | Double-breaking-point breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104992860B (en) | 2018-05-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Bang Inventor before: Ma Renhuan |
|
| 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 | ||
| 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 |