CN105118750A - Arc striking device of circuit breaker - Google Patents
Arc striking device of circuit breaker Download PDFInfo
- Publication number
- CN105118750A CN105118750A CN201510475065.6A CN201510475065A CN105118750A CN 105118750 A CN105118750 A CN 105118750A CN 201510475065 A CN201510475065 A CN 201510475065A CN 105118750 A CN105118750 A CN 105118750A
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- arc striking
- conducting strip
- tab
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses an arc striking device of a circuit breaker. The device comprises a circuit breaker shell, an open circuit driving apparatus, an arc extinguishing apparatus, a conductive system and a tripping mechanism. The tripping mechanism comprises a movable contact. The conductive system comprises a conducting strip and a static contact. The conducting strip is electrically connected to the movable contact through a lead. An arc striking groove is arranged on the circuit breaker shell of two sides of the static contact. The arc striking groove is connected to the arc extinguishing apparatus. One side of the conducting strip is provided with an arc striking plate. An arc striking angle is arranged on a lower side of the static contact. The arc striking angle is connected to the arc extinguishing apparatus through an arc striking sheet. An arc magnetic blowout effect is good, an arc striking speed is fast, the structure is simple, cost is low, assembling is convenient and a circuit breaker breaking capacity is greatly increased.
Description
Technical field
The present invention relates to a kind of circuit breaker, be specifically related to a kind of arc-initiating device of circuit breaker.
Background technology
At present, human lives be unable to do without electric energy, various protectors for the protection of circuit arise at the historic moment, wherein circuit breaker is one of common circuit brake, for at circuit overloads short-circuit protection, when there is the situation of short circuit or overload in circuit, the tripping mechanism automatic shutdown circuit of circuit breaker, in the process cutting off circuit, a large amount of electric arc can be produced, electric arc produces along with HTHP, easily puncture as evacuated arc extinguishing not in time or burn circuit breaker, have a strong impact on the breaking capacity of circuit breaker, although existing arc-control device arc quenching effect is fine, but electric arc will be introduced arc-control device is the technical barrier that will solve, and circuit breaker under prior art causes circuit breaker to damage due to striking ability, affect useful life and Electrical Safety, and the complex structure of the arc-initiating device of some circuit breakers, complex manufacturing, cause cost very high.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of arc-initiating device of circuit breaker.
To achieve these goals, the technical solution adopted for the present invention to solve the technical problems is: a kind of arc-initiating device of circuit breaker, comprise Shell of circuit breaker, open circuit drive unit, arc-control device, conducting system, tripping mechanism, tripping mechanism comprises movable contact, conducting system comprises conducting strip and fixed contact, conducting strip is electrically connected with movable contact by wire, the Shell of circuit breaker being positioned at fixed contact both sides is provided with striking groove, striking groove is communicated with arc-control device, the side of described conducting strip is provided with run-on tab, the downside of fixed contact is provided with arc leading angle, arc leading angle is connected with arc-control device by arc striking piece,
The arc-initiating device of a kind of circuit breaker that the present invention further provides, the overall camber of its run-on tab, the arc end of run-on tab is provided with arc fold bending and fits with conducting strip, and the inner side on arc run-on tab bends in cambered surface and is provided with bar shaped projection;
The arc-initiating device of a kind of circuit breaker that the present invention further provides, its arc leading angle is arc fold bending overhead kick, and bending angle is 45 ° to 75 °, and both sides, the end correspondence of arc fold bending overhead kick is provided with inclined-plane.
The arc-initiating device of a kind of circuit breaker that the present invention further provides, its arc striking piece is the straight plate that one end is provided with bending, and its bending angle is 120 ° to 150 °, and the two sides of the arc end of arc striking piece also correspondence are provided with inclined-plane.
The arc-initiating device of a kind of circuit breaker that the present invention further provides, the face that its arc leading angle is relative with the arc end of arc striking piece is parallel to each other at a distance of 2-3mm.
Beneficial effect of the present invention: electric arc magnetic blow-out of the present invention is effective, striking speed is fast, and structure is simple, and cost is low, easy to assembly and significantly improve circuit breaker breaking capacity.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of circuit breaker off-state of the present invention;
Fig. 2 is fixed contact modular construction schematic diagram of the present invention;
Fig. 3 is run-on tab modular construction schematic diagram of the present invention;
Fig. 4 is the structural representation of arc striking piece of the present invention.
Embodiment
The arc-initiating device of a kind of circuit breaker as shown in Figures 1 to 4, comprise Shell of circuit breaker 1, open circuit drive unit 2, arc-control device 3, conducting system 4, tripping mechanism 5, tripping mechanism 5 comprises movable contact 6, conducting system 4 comprises conducting strip 7 and fixed contact 8, conducting strip 7 is electrically connected with movable contact 6 by wire, the Shell of circuit breaker 1 being positioned at fixed contact 8 both sides is provided with striking groove 9, striking groove 9 is communicated with arc-control device 3, the side of described conducting strip 7 is provided with run-on tab 10, the downside of fixed contact 8 is provided with arc leading angle 11, arc leading angle 11 is connected with arc-control device 3 by arc striking piece 12,
The overall camber of described run-on tab 10, the arc end of run-on tab 10 is provided with arc fold bending 13 and fits with conducting strip 7, and the inner side on arc run-on tab bends in cambered surface and is provided with bar shaped projection 14;
Described arc leading angle 11 is arc fold bending overhead kick, and bending angle is 45 ° to 75 °, and both sides, the end correspondence of arc fold bending overhead kick is provided with inclined-plane.
Described arc striking piece 12 is provided with the straight plate of bending for one end, and its bending angle is 120 ° to 150 °, and the two sides of the arc end of arc striking piece 12 also correspondence are provided with inclined-plane.
The face that described arc leading angle 11 is relative with the arc end of arc striking piece 12 is parallel to each other at a distance of 2-3mm.
The open circuit detailed process of circuit breaker of the present invention: when there being short circuit current to flow through, short circuit current is by conducting system 4, open circuit drive unit 2 produces the iron core arranged in larger field drives open circuit drive unit 2, the push-jump tripping mechanism 5 of iron core, and circuit breaker tripping divides deenergizing; Divide during deenergizing and produce electric arc, electric arc one end through the apparent motion of arc leading angle 11 to the end of arc fold bending overhead kick, form from the arc end of arc striking piece 12 electromagnetic force that the different sense of current repels each other, force electric arc to move to the folding corner of arc striking piece 12, then move to arc-control device 3 along its surface; The electric arc other end is through moving contact 6 arcing, cause on run-on tab 10 by the arc fold bending 13 of run-on tab 10, again along the surperficial fast moving of bar shaped projection 14 to arc-control device 3, electric arc is introduced in arc-control device 3 and is carried out splitting and cool by two ends arcing, let out arc at the arc passage of letting out by Shell of circuit breaker 1 is offered, complete whole breaking course.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. the arc-initiating device of a circuit breaker, comprise Shell of circuit breaker, open circuit drive unit, arc-control device, conducting system, tripping mechanism, tripping mechanism comprises movable contact, conducting system comprises conducting strip and fixed contact, conducting strip is electrically connected with movable contact by wire, the Shell of circuit breaker being positioned at fixed contact both sides is provided with striking groove, striking groove is communicated with arc-control device, it is characterized in that, the side of described conducting strip is provided with run-on tab, the downside of fixed contact is provided with arc leading angle, and arc leading angle is connected with arc-control device by arc striking piece;
The overall camber of described run-on tab, the arc end of run-on tab is provided with arc fold bending and fits with conducting strip, and the inner side on arc run-on tab bends in cambered surface and is provided with bar shaped projection;
Described arc leading angle is arc fold bending overhead kick, and bending angle is 45 ° to 75 °, and both sides, the end correspondence of arc fold bending overhead kick is provided with inclined-plane.
2. the arc-initiating device of a kind of circuit breaker as claimed in claim 1, is characterized in that, described arc striking piece is the straight plate that one end is provided with bending, and its bending angle is 120 ° to 150 °, and the two sides of the arc end of arc striking piece also correspondence are provided with inclined-plane.
3. the arc-initiating device of a kind of circuit breaker as claimed in claim 1, is characterized in that, the face that described arc leading angle is relative with the arc end of arc striking piece is parallel to each other at a distance of 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475065.6A CN105118750A (en) | 2015-08-05 | 2015-08-05 | Arc striking device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475065.6A CN105118750A (en) | 2015-08-05 | 2015-08-05 | Arc striking device of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105118750A true CN105118750A (en) | 2015-12-02 |
Family
ID=54666704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510475065.6A Pending CN105118750A (en) | 2015-08-05 | 2015-08-05 | Arc striking device of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105118750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653431A (en) * | 2017-03-13 | 2017-05-10 | 新驰电气有限公司 | Arc extinguishing system of residual current operated circuit breaker |
| CN108732399A (en) * | 2017-04-14 | 2018-11-02 | 施耐德电器工业公司 | Electric parameter measurement component |
| CN110931326A (en) * | 2019-12-12 | 2020-03-27 | 岳西县和祥电子科技有限公司 | Can avoid moulded case circuit breaker of static contact scaling loss |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10230094A1 (en) * | 2002-07-04 | 2004-01-29 | Siemens Ag | Arc extinction device for load protection switch has one of arc conduction rails leading to arc extinction chamber coupled to auxiliary conductor path for lead-off of arc driving current |
| CN200969331Y (en) * | 2006-11-16 | 2007-10-31 | 天正集团有限公司 | Arc striking apparatus of small circuit breaker |
| CN201638770U (en) * | 2010-03-12 | 2010-11-17 | 乐清市合安电气有限公司 | Arc guiding structure for small-size breaker |
| CN102157312A (en) * | 2011-03-21 | 2011-08-17 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for miniature circuit breaker |
| CN203760405U (en) * | 2014-02-19 | 2014-08-06 | 温州中菱电器有限公司 | Circuit breaker arc-extinguishing mechanism |
| CN203799986U (en) * | 2014-04-10 | 2014-08-27 | 黄信桥 | Over-current time-delay release double-metal arc ignition assembly of miniaturized circuit breaker |
| CN204045531U (en) * | 2014-09-16 | 2014-12-24 | 长城电器集团有限公司 | A kind of energy-saving miniature circuit breaker |
| CN204905193U (en) * | 2015-08-05 | 2015-12-23 | 浙江凯发电气股份有限公司 | Arc initiation device of circuit breaker |
-
2015
- 2015-08-05 CN CN201510475065.6A patent/CN105118750A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10230094A1 (en) * | 2002-07-04 | 2004-01-29 | Siemens Ag | Arc extinction device for load protection switch has one of arc conduction rails leading to arc extinction chamber coupled to auxiliary conductor path for lead-off of arc driving current |
| CN200969331Y (en) * | 2006-11-16 | 2007-10-31 | 天正集团有限公司 | Arc striking apparatus of small circuit breaker |
| CN201638770U (en) * | 2010-03-12 | 2010-11-17 | 乐清市合安电气有限公司 | Arc guiding structure for small-size breaker |
| CN102157312A (en) * | 2011-03-21 | 2011-08-17 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for miniature circuit breaker |
| CN203760405U (en) * | 2014-02-19 | 2014-08-06 | 温州中菱电器有限公司 | Circuit breaker arc-extinguishing mechanism |
| CN203799986U (en) * | 2014-04-10 | 2014-08-27 | 黄信桥 | Over-current time-delay release double-metal arc ignition assembly of miniaturized circuit breaker |
| CN204045531U (en) * | 2014-09-16 | 2014-12-24 | 长城电器集团有限公司 | A kind of energy-saving miniature circuit breaker |
| CN204905193U (en) * | 2015-08-05 | 2015-12-23 | 浙江凯发电气股份有限公司 | Arc initiation device of circuit breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653431A (en) * | 2017-03-13 | 2017-05-10 | 新驰电气有限公司 | Arc extinguishing system of residual current operated circuit breaker |
| CN108732399A (en) * | 2017-04-14 | 2018-11-02 | 施耐德电器工业公司 | Electric parameter measurement component |
| CN110931326A (en) * | 2019-12-12 | 2020-03-27 | 岳西县和祥电子科技有限公司 | Can avoid moulded case circuit breaker of static contact scaling loss |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |