CN102184815A - Circuit breaker arc striking device - Google Patents
Circuit breaker arc striking device Download PDFInfo
- Publication number
- CN102184815A CN102184815A CN2011101250068A CN201110125006A CN102184815A CN 102184815 A CN102184815 A CN 102184815A CN 2011101250068 A CN2011101250068 A CN 2011101250068A CN 201110125006 A CN201110125006 A CN 201110125006A CN 102184815 A CN102184815 A CN 102184815A
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- fixed
- contact
- fixed contact
- 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
Links
Images
Abstract
The invention discloses a circuit breaker arc striking device comprising an arc extinguish chamber arranged below a fixed contact mechanism and an arc extinguish grid positioned at the rear end of the arc extinguish chamber, wherein the fixed contact mechanism is fixed with a fixed contact arc guide plate extending to the upper part of the arc extinguish grid; the top and bottom of the arc extinguish chamber are provided with flash barriers. The circuit breaker arc striking device is characterized in that a U-shaped section is bent on the fixed contact arc guide plate and stretches into the arc extinguish chamber; a magnetic steel is fixed at the inner side of the U-shaped section; and the upper and lower parts of the magnetic steel are connected with the flash barriers at the top and the bottom of the arc extinguish chamber respectively. The circuit breaker arc striking device overcomes the defects of slow arc guide speed and long arc extinguish time of the existing circuit breaker arc striking device, and can further enhance the magnetic blow-out capacity in the arc extinguish chamber via the magnetic steel, and the arc is transferred to the fixed contact arc guide plate in an accelerated way so as to further guiding the arc into the arc extinguish grid for being extinguished, thus effectively improving the breaking capacity of the circuit breaker.
Description
Technical field
The present invention relates to a kind of circuit breaker arc-initiating device.
Background technology
When circuit breaker divided deenergizing, the gas between contact produced electric discharge phenomena under the highfield effect, and we are referred to as electric arc.Because the existence of electric arc in the circuit breaker breaking course postpones the circuit breaker break-time, the scaling loss contact, even can cause in severe case and catch fire and explode.For this reason, in the miniature circuit breaker striking, arc-control device must be set.The effect of arc-initiating device is to make electric arc enter arc-chute in the shortest time, and it is extinguished.Existing arc-initiating device all is to be fixed on the dynamic and static contact and to lead the arc plate to what arc-chute one side was extended usually, yet because arc-chute produces a little apart from electric arc in the circuit breaker---dynamic and static contact is far away, lead the arc plate and still can't fast and effectively electric arc be introduced arc-chute, it is extinguished.And the method for strengthening striking is also arranged at present: promptly increase flash barrier enhancing magnetic blow-out at arc control device top and bottom, but DeGrain.
Summary of the invention
The present invention seeks to: overcome the defective that striking speed is slow, the arc extinction time is long that the existing circuit breaker arc-initiating device exists, and provide a kind of circuit breaker arc-initiating device, it can further strengthen the magnetic blow-out ability in the arc control device, electric arc is quickened to be transferred to fixed contact leads on the arc plate, and then electric arc is introduced in the arc-chute extinguished faster, thereby effectively improve the breaking capacity of circuit breaker.
Technical scheme of the present invention is: a kind of circuit breaker arc-initiating device, comprise the arc control device of being located at the static contact mechanism below and the arc-chute that is positioned at the arc control device rear end, be fixed with the fixed contact that extends to arc-chute top on the described static contact mechanism and lead the arc plate, and the top of arc control device and bottom are equipped with flash barrier; It is characterized in that described fixed contact leads on the arc plate and crooked the U-shaped section that stretches in the arc control device to be arranged, and be fixed with a magnet steel, the linking to each other with the flash barrier of arc control device top and bottom respectively up and down of this magnet steel in U-shaped section inboard.
Further, the present invention also comprises the dynamic contact mechanism that is oppositely arranged with static contact mechanism, is fixed with the moving contact that extends to the arc-chute bottom on the described dynamic contact mechanism and leads the arc plate.
Further, static contact mechanism described in the present invention comprises fixed contact pole and fixed contact, and described fixed contact is led the arc plate and is welded and fixed on the fixed contact pole, leads on the arc plate and fixed contact is soldered to fixed contact; And described dynamic contact mechanism comprises moving contact transmission frame and the moving contact of being located on the moving contact transmission frame, and described moving contact is led the arc plate and is welded and fixed on the moving contact transmission frame.
Further, arc-chute described in the present invention comprises the long and short grid sheet of alternately arranging, and arranges with insulation at interval between the adjacent long and short grid sheet.
Further, arc-chute described in the present invention also comprises two grid sheet location-plates that grip long and short grid sheet, and the side of described long and short grid sheet is equipped with some projectioies, and correspondence is supported the location hole internal fixation that grid sheet location-plate is provided with.The same with routine techniques, long and short grid sheet is stalloy, and grid sheet location-plate then is a vulcanized fiber board.
Further, arc control device described in the present invention are buckled to surround by loam cake and basic shell and form, and the flash barrier of described arc control device top and bottom is individually fixed on loam cake and the basic shell.
Further, flash barrier described in the present invention is made by the outside injection moulding nylon of stalloy.The generation magnetic blow-out of in arc control device, being heated of the nylon material of injection moulding and the stalloy at center.
The effect of magnet steel has two among the present invention: 1, during the circuit breaker disjunction, the arc energy on the static contact mechanism is led on the arc plate causing fixed contact under the strong magnetic field action of magnet steel fast; 2, magnet steel forms a permanent magnetic field that is positioned at arc control device with arc control device flash barrier magnetization up and down, in case produce electric arc, this magnetic field will produce powerful magnetic blow-out, and electric arc is drawn in arc-chute fast.
In addition, lead on the arc plate bending at fixed contact among the present invention and go out the U-shaped section and can increase the arc-distribution space, help diffuse arc, also help strengthening being positioned at quiet, moving contact simultaneously and lead the magnetic blow-out of the flash barrier of arc plate upper and lower.
Advantage of the present invention is:
1. this circuit breaker arc-initiating device provided by the invention; overcome the defective that striking speed is slow, the arc extinction time is long that the existing circuit breaker arc-initiating device exists; it can further strengthen magnetic blow-out ability in the arc control device by magnet steel; electric arc is quickened to be transferred to fixed contact leads on the arc plate; and then electric arc is introduced in the arc-chute extinguished faster; thereby effectively improve the breaking capacity of circuit breaker, the better protection static contact mechanism.
2. adopt length grid sheet alternately to arrange in this circuit breaker arc-initiating device provided by the invention, its arc-chute, wherein long grid sheet can significantly reduce the resistance that electric arc enters, and makes electric arc can enter arc-chute more fast, improves the arc extinguishing efficient of arc-chute greatly.
3. this circuit breaker arc-initiating device provided by the invention, it is led on the arc plate bending at fixed contact and goes out the U-shaped section and can increase the arc-distribution space, helps diffuse arc, also helps strengthening being positioned at quiet, moving contact simultaneously and leads the magnetic blow-out of the flash barrier of arc plate upper and lower.
4. this circuit breaker arc-initiating device provided by the invention, owing to improved the breaking capacity of circuit breaker greatly, so in the very suitable small-sized DC circuit breaker that is applied to arc extinguishing is had relatively high expectations.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is a structural representation of the present invention.
Wherein: 1, static contact mechanism; 1a, fixed contact pole; 1b, fixed contact; 2, arc control device; 3, arc-chute; 3a, long grid sheet; 3b, short grid sheet; 3c, grid sheet location-plate; 4, fixed contact is led the arc plate; 5, flash barrier; 6, magnet steel; 7, dynamic contact mechanism; 7a, moving contact transmission frame; 7b, moving contact; 8, moving contact is led the arc plate.
Embodiment
Embodiment: in conjunction with shown in Figure 1, this circuit breaker arc-initiating device that present embodiment provides, it is by quiet, dynamic contact mechanism 1,7, be positioned at quiet, dynamic contact mechanism 1,7 bottoms and buckle the arc control device 2 that surround mutually by loam cake (not drawing among the figure) and basic shell (not drawing among the figure), be positioned at the arc-chute 3 of arc control device 2 rear ends, be fixed to respectively that fixed contact on static contact mechanism 1 and the dynamic contact mechanism 7 is led arc plate 4 and moving contact is led arc plate 8, two flash barriers 5 of flash barrier 5(that lay respectively at arc control device 2 tops and bottom are individually fixed on loam cake and the basic shell, can only see the flash barrier 5 at top among the figure) and magnet steel 6 constitute jointly.
Static contact mechanism described in the present embodiment 1 comprises fixed contact pole 1a and fixed contact 1b, and described fixed contact is led arc plate 4 and is welded and fixed on the fixed contact pole 1a, leads on the arc plate 4 and fixed contact 1b is soldered to fixed contact.As shown in Figure 1, described fixed contact is led the top that arc plate 4 extends to arc-chute 3, and this fixed contact is led on the arc plate 4 the crooked U-shaped section that stretches in the arc control device 2 that has, and at the inboard fixedly magnet steel 6 of U-shaped section, the linking to each other with the flash barrier 5 of arc control device 2 tops and bottom respectively up and down of this magnet steel 6.And described dynamic contact mechanism 7 is oppositely arranged with static contact mechanism 1, it comprises moving contact transmission frame 7a and the moving contact 7b that is located on the moving contact transmission frame 7a, described moving contact is led arc plate 8 and is welded and fixed on the moving contact transmission frame 7a, and this moving contact is led the below that arc plate 8 extends to arc-chute 3.
Arc-chute described in the present embodiment 3 is made of jointly the long and short grid sheet 3a, the 3b that alternately arrange and two grid sheet location-plate 3c gripping long and short grid sheet 3a, 3b.Arrange with insulation at interval between described adjacent long and short grid sheet 3a, the 3b.The side of described long and short grid sheet 3a, 3b is equipped with some projectioies, and correspondence is supported the location hole internal fixation that grid sheet location-plate 3c is provided with.The same with routine techniques, long and short grid sheet 3a, 3b are stalloy, and grid sheet location-plate 3c then is a vulcanized fiber board.
Two flash barriers 5 in the present embodiment lay respectively at the upper and lower of arc control device 2, and loam cake and the basic shell of arc control device 2 with circuit breaker separated.And two flash barriers 5 are made by the outside injection moulding nylon of stalloy, the generation magnetic blow-out of being heated in arc control device 2 of the nylon material of injection moulding and the stalloy at center.
The effect of magnet steel 6 has two in the present embodiment: 1, during the circuit breaker disjunction, the arc energy on the static contact mechanism 1 is led on the arc plate 4 causing fixed contact under the strong magnetic field action of magnet steel 6 fast; 2, magnet steel 6 forms a permanent magnetic field that is positioned at arc control device 2 with flash barrier 5 magnetization of arc control device about in the of 2, in case produce electric arc, this magnetic field will produce powerful magnetic blow-out, and electric arc is drawn in arc-chute 3 fast.
In addition, lead on the arc plate 4 bending at fixed contact in the present embodiment and go out the U-shaped section and can increase the arc-distribution space, help diffuse arc, also help strengthening being positioned at quiet, moving contact simultaneously and lead the magnetic blow-out of the flash barrier 5 of arc plate 4,8 upper and lowers.
Present embodiment has following advantage:
1. this circuit breaker arc-initiating device that provides of present embodiment; overcome the defective that striking speed is slow, the arc extinction time is long that the existing circuit breaker arc-initiating device exists; it can further strengthen magnetic blow-out ability in the arc control device 2 by magnet steel 6; electric arc is quickened to be transferred to fixed contact leads on the arc plate 4; and then electric arc is introduced in the arc-chute 3 extinguished faster; thereby effectively improve the breaking capacity of circuit breaker, better protection static contact mechanism 1.
2. this circuit breaker arc-initiating device that provides of present embodiment, adopt length grid sheet 3a, 3b alternately to arrange in its arc-chute 3, wherein long grid sheet 3a can significantly reduce the resistance that electric arc enters, and makes electric arc can enter arc-chute 3 more fast, improves the arc extinguishing efficient of arc-chute 3 greatly.
3. this circuit breaker arc-initiating device that provides of present embodiment, it is led on the arc plate 4 bending at fixed contact and goes out the U-shaped section and can increase the arc-distribution space, help diffuse arc, also help simultaneously strengthening being positioned at quiet, moving contact and lead the magnetic blow-out of the flash barrier 5 of arc plate 4,8 upper and lowers.
4. this circuit breaker arc-initiating device that provides of present embodiment, owing to improved the breaking capacity of circuit breaker greatly, so in the small-sized DC circuit breaker that suits very much to be applied to arc extinguishing is had relatively high expectations.
Certainly the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.The all spirit of main technical schemes is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (7)
1. circuit breaker arc-initiating device, comprise the arc control device (2) of being located at static contact mechanism (1) below and the arc-chute (3) that is positioned at arc control device (2) rear end, be fixed with the fixed contact that extends to arc-chute (3) top on the described static contact mechanism (1) and lead arc plate (4), and the top of arc control device (2) and bottom are equipped with flash barrier (5); It is characterized in that described fixed contact leads arc plate (4) and go up bending the U-shaped section that stretches in the arc control device (2) is arranged, and be fixed with a magnet steel (6), the linking to each other with the flash barrier (5) of arc control device (2) top and bottom respectively up and down of this magnet steel (6) in U-shaped section inboard.
2. circuit breaker arc-initiating device according to claim 1, it is characterized in that also comprising the dynamic contact mechanism (7) that is oppositely arranged with static contact mechanism (1), be fixed with the moving contact that extends to arc-chute (3) bottom on the described dynamic contact mechanism (7) and lead arc plate (8).
3. circuit breaker arc-initiating device according to claim 2, it is characterized in that described static contact mechanism (1) comprises fixed contact pole (1a) and fixed contact (1b), described fixed contact is led arc plate (4) and is welded and fixed on the fixed contact pole (1a), leads on the arc plate (4) and fixed contact (1b) is soldered to fixed contact; And described dynamic contact mechanism (7) comprises moving contact transmission frame (7a) and be located at moving contact (7b) on the moving contact transmission frame (7a), and described moving contact is led arc plate (8) and is welded and fixed on the moving contact transmission frame (7a).
4. circuit breaker arc-initiating device according to claim 1 and 2 is characterized in that described arc-chute (3) comprises the long and short grid sheet (3a, 3b) of alternately arranging, and arranges with insulation at interval between the adjacent long and short grid sheet (3a, 3b).
5. circuit breaker arc-initiating device according to claim 4, it is characterized in that described arc-chute (3) also comprises the two grid sheet location-plates (3c) that grip long and short grid sheet (3a, 3b), the side of described long and short grid sheet (3a, 3b) is equipped with some projectioies, and correspondence is supported the location hole internal fixation that grid sheet location-plate (3c) is provided with.
6. circuit breaker arc-initiating device according to claim 1 is characterized in that described arc control device (2) are buckled to surround by loam cake and basic shell to form that the flash barrier (5) of described arc control device (2) top and bottom is individually fixed on loam cake and the basic shell.
7. circuit breaker arc-initiating device according to claim 6 is characterized in that described flash barrier (5) makes by the outside injection moulding nylon of stalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101250068A CN102184815A (en) | 2011-05-16 | 2011-05-16 | Circuit breaker arc striking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101250068A CN102184815A (en) | 2011-05-16 | 2011-05-16 | Circuit breaker arc striking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102184815A true CN102184815A (en) | 2011-09-14 |
Family
ID=44570974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101250068A Pending CN102184815A (en) | 2011-05-16 | 2011-05-16 | Circuit breaker arc striking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102184815A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655066A (en) * | 2012-03-31 | 2012-09-05 | 温州奥来电器有限公司 | High-breaking-capacity energy-storage-type biaxial miniature circuit breaker |
| CN102789931A (en) * | 2012-07-27 | 2012-11-21 | 法泰电器（江苏）股份有限公司 | Arc extinguishing device of circuit breaker with reverse current protection |
| CN109192632A (en) * | 2018-11-06 | 2019-01-11 | 江苏凯隆电器有限公司 | A kind of small-sized DC breaker arc extinguishing structure |
| CN109950074A (en) * | 2017-12-21 | 2019-06-28 | 泰科电子(深圳)有限公司 | Electrical contact system |
| CN113042859A (en) * | 2021-03-16 | 2021-06-29 | 上海外高桥造船有限公司 | Novel arc striking plate for segmented jointed boards of large-scale passenger liner sheets |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004988A (en) * | 2006-12-29 | 2007-07-25 | 张作朋 | Arc suppressing device of intelligent plastic casing break |
| CN201072714Y (en) * | 2007-07-06 | 2008-06-11 | 施耐德电器工业公司 | Arc extinguishing grid device |
| CN201663133U (en) * | 2010-04-08 | 2010-12-01 | 温州科宇电器有限公司 | Miniature circuit breaker arc extinguishing device |
| CN201773805U (en) * | 2010-07-15 | 2011-03-23 | 北京翠祥电器元件有限公司 | Combined magnetic-quenching arc-extinguishing device |
| CN202042442U (en) * | 2011-05-16 | 2011-11-16 | 法泰电器（江苏）股份有限公司 | Arc initiating device of circuit breaker |
-
2011
- 2011-05-16 CN CN2011101250068A patent/CN102184815A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004988A (en) * | 2006-12-29 | 2007-07-25 | 张作朋 | Arc suppressing device of intelligent plastic casing break |
| CN201072714Y (en) * | 2007-07-06 | 2008-06-11 | 施耐德电器工业公司 | Arc extinguishing grid device |
| CN201663133U (en) * | 2010-04-08 | 2010-12-01 | 温州科宇电器有限公司 | Miniature circuit breaker arc extinguishing device |
| CN201773805U (en) * | 2010-07-15 | 2011-03-23 | 北京翠祥电器元件有限公司 | Combined magnetic-quenching arc-extinguishing device |
| CN202042442U (en) * | 2011-05-16 | 2011-11-16 | 法泰电器（江苏）股份有限公司 | Arc initiating device of circuit breaker |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655066A (en) * | 2012-03-31 | 2012-09-05 | 温州奥来电器有限公司 | High-breaking-capacity energy-storage-type biaxial miniature circuit breaker |
| CN102789931A (en) * | 2012-07-27 | 2012-11-21 | 法泰电器（江苏）股份有限公司 | Arc extinguishing device of circuit breaker with reverse current protection |
| CN102789931B (en) * | 2012-07-27 | 2015-03-25 | 法泰电器（江苏）股份有限公司 | Arc extinguishing device of circuit breaker with reverse current protection |
| CN109950074A (en) * | 2017-12-21 | 2019-06-28 | 泰科电子(深圳)有限公司 | Electrical contact system |
| CN109192632A (en) * | 2018-11-06 | 2019-01-11 | 江苏凯隆电器有限公司 | A kind of small-sized DC breaker arc extinguishing structure |
| CN113042859A (en) * | 2021-03-16 | 2021-06-29 | 上海外高桥造船有限公司 | Novel arc striking plate for segmented jointed boards of large-scale passenger liner sheets |
| CN113042859B (en) * | 2021-03-16 | 2022-09-30 | 上海外高桥造船有限公司 | Novel arc striking plate for segmented splicing of large-scale passenger liner sheets |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202042442U (en) | Arc initiating device of circuit breaker | |
| CN102184815A (en) | Circuit breaker arc striking device | |
| CN203325803U (en) | Frame part of relay | |
| CN201788918U (en) | 18mm-wide double-line electric leakage circuit breaker with high breaking capacity | |
| CN102789931A (en) | Arc extinguishing device of circuit breaker with reverse current protection | |
| CN104934270B (en) | Circuit breaker | |
| CN202268271U (en) | Arc-extinguishing chamber device of circuit breaker | |
| CN203312220U (en) | Arc extinguishing device for circuit breaker | |
| CN106098438A (en) | One has high breaking capacity arc quenching system | |
| CN106783426A (en) | A kind of electric switch | |
| CN102157313A (en) | Arc extinguishing device of circuit breaker | |
| CN202058678U (en) | Arc-extinguishing device for circuit breaker | |
| CN102354636A (en) | Arc-extinguishing device of circuit breaker | |
| CN204558302U (en) | A kind of circuit breaker with efficient arc striking piece | |
| CN207690742U (en) | A kind of arc-chutes of breaker of plastic casing | |
| CN208336117U (en) | A kind of breaker of plastic casing | |
| CN202150427U (en) | Arc extinguishing device of breaker | |
| CN203644595U (en) | Switch apparatus contact device | |
| CN107799370A (en) | A kind of arc-chutes of breaker of plastic casing | |
| CN202839507U (en) | Arc-extinguishing chamber | |
| CN106486302B (en) | A kind of motor starting device | |
| CN206639767U (en) | High current miniature circuit breaker | |
| CN204720351U (en) | Striking assembly in a kind of circuit breaker | |
| CN201536080U (en) | Electronic electromagnetic type intelligent switch | |
| CN205970890U (en) | Multistage electromagnetic protection device of batteries of electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110914 |