CN101986415B - Arc extinguishing chamber of molded case low voltage circuit breaker - Google Patents
Arc extinguishing chamber of molded case low voltage circuit breaker Download PDFInfo
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- CN101986415B CN101986415B CN 201010539377 CN201010539377A CN101986415B CN 101986415 B CN101986415 B CN 101986415B CN 201010539377 CN201010539377 CN 201010539377 CN 201010539377 A CN201010539377 A CN 201010539377A CN 101986415 B CN101986415 B CN 101986415B
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- sidewall
- arc extinguishing
- magnetic patch
- arc
- rear wall
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Abstract
The invention discloses an arc extinguishing chamber of a molded case low voltage circuit breaker, which is characterized in that a box body structure is composed of two casings, one of which adopts a bilateral symmetry structure and the other of which includes a top wall, two sidewalls, a rear wall and a bottom wall, wherein the rear wall is provided with a rear wall opening into which a moving contact can stretch, the bottom wall is provided with a bottom wall opening into which a fixed contact can stretch, the bottom wall is further provided with two grooves fitted with two legs of a U-shaped magnetizer, one sidewall is provided with a plurality of sidewall channel and a sidewall groove, the sidewall channels are fixedly provided with arc extinguishing grilles, the sidewall groove is fixedly provided with blocky magnetizers, the other sidewall has the same features as the previous sidewall; and the two blocky magnetizers, one U-shaped magnetizer and the arc extinguishing grilles form a magnetic loop structure; the arc extinguishing chamber can effectively prevent arc restriking between the magnetizers, between the magnetizers and the moving contact and between the magnetizers and the fixed contact during the breaking of circuit breaker; and the magnetic loop structure is favorable for strengthening blow-out magnetic field of the arc extinguishing chamber.
Description
Technical field
The present invention relates to a kind of case low-voltage circuit breaker of moulding, relate in particular to the arc control device of breaker of plastic casing.
Background technology
At present, the arc control device housing of moulding case low-voltage circuit breaker adopts ferromagnetic material, and interior dress U type arc extinguishing grid pieces adopts grid sheet arc extinguishing.When circuit breaker produced electric arc, because the existence of grid sheet, the magnetic flux path that arc current produces in the air around distorted; Magnetized grid sheet produces electromagnetic force electric arc is pulled to arc control device; Electric arc is cut apart and cooled off through the grid sheet, arc resistance increases, and arc voltage also improves; When arc voltage reached certain value, electric arc will be extinguished.For magnetic blow-out power that electric arc is received bigger; In arc control device, place one or more magnetic patch that increase; At present generally use the ear type to increase magnetic patch and the U type increases magnetic patch, when reality is used, be prone to cause and increase between the magnetic patch, increase between magnetic patch and the moving contact, increase the arc reignition between magnetic patch and the fixed contact but increase magnetic patch.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, provide a kind of simple in structure, conveniently increase magnetic patch and install, effectively prevent arc reignition, improve the arc control device of moulding the case low-voltage circuit breaker interrupting performance.
The technical scheme that the present invention adopts is: form body structure by a housing and another housing, a housing is the left-right symmetric structure, and a housing has roof; The two side, rear wall and diapire have the rear wall openings that supplies moving contact to stretch on the rear wall; Has the diapire opening that supplies fixed contact to stretch on the diapire; Have on the diapire with the U type and increase two grooves that two legs of magnetic patch match, have several sidewall grooves and a sidewall notches on the sidewall, fixedly install arc extinguishing grid pieces on the sidewall groove; Be set with bulk on the sidewall notches and increase magnetic patch, characteristic is identical with a sidewall on another sidewall; Two bulks increase magnetic patch, U type increases magnetic patch and arc extinguishing grid pieces forms the magnetic loop structure.
The invention has the beneficial effects as follows:
The bulk of 1, installing in the groove of arc control device two side increases between the magnetic patch and is spaced from each other by the two side, increases between the magnetic patch in the time of can effectively preventing the circuit breaker disjunction, increases between magnetic patch and the moving contact, increases the arc reignition phenomenon takes place between magnetic patch and the fixed contact.
2, bulk increases magnetic patch, U type and increases between magnetic patch and the arc extinguishing grid pieces and form loop structure in the arc control device, helps strengthening the arc blow-out magnetic field of arc control device, improves the suffered magnetic blow-out power of electric arc, can make electric arc get into arc extinguishing grid pieces more quickly.
Description of drawings
Fig. 1 is an outline drawing of the present invention;
Fig. 2 is the topology view that Fig. 1 removes arc control device housing 2;
Fig. 3 is the fractionation structural representation of Fig. 1;
Fig. 4 is the front view of arc control device housing 1 among Fig. 3;
Fig. 5 is the bottom view of arc control device housing 1 among Fig. 3;
Fig. 6 blockly among Fig. 3 increases the relative position structure chart that magnetic patch 3, U type increase magnetic patch 4 and arc extinguishing grid pieces 5;
Among the figure: 1. a housing; 2. another housing; 3. bulk increases magnetic patch; 4.U type increases magnetic patch; 5. arc extinguishing grid pieces; 11. roof; 12,13. sidewalls; 14. rear wall; 15. diapire; 21. roof; 22. diapire; 23. antetheca; 24,25. sidewalls; 121. sidewall notches; 122. sidewall groove; 141. rear wall openings; 151. diapire opening; 152. diapire groove; 221. diapire opening; 231. antetheca gas outlet; 1211 boss.
Embodiment
Shown in Fig. 1-5, arc control device are body structures that are combined into by a housing 1 and another housing 2, and a housing 1 is the left-right symmetric structure, and a housing 1 has roof 11, two side 12,13, rear wall 14, diapire 15; Have rear wall openings 141 on the rear wall 14, supply moving contact to stretch into the arc control device action.Have diapire opening 151 on the diapire 15, supply fixed contact to stretch into arc control device; Also have two diapire grooves, 152, two grooves 152 on the diapire 15 and match with two legs 41 that the U type increases magnetic patch 4, the two legs insertion that the U type increases magnetic patch 4 is installed in two grooves 152.Have several sidewall grooves 122 and a sidewall notches 121 on one sidewall 12; Groove 121 is by groove 122 sides; Arc extinguishing grid pieces 5 is fixedly installed on the sidewall groove 122, and bulk increases magnetic patch 3 and is fixedly installed on the groove 121, and bulk increases the block slab construction that magnetic patch 3 matches with groove 121 for profile; Two boss 1211 respectively are set on groove 121 two sides, and bulk increases magnetic patch 3 and is positioned on the groove 121 through boss about 1211.Because a housing 1 is the left-right symmetric structure, a characteristic and a sidewall 12 are identical on another sidewall 13.
As shown in Figure 3, another housing 2 has roof 21, diapire 22, antetheca 23, two side 24,25.Have antetheca gas outlet 231 on the antetheca 23, have the diapire opening 221 that stretches into arc control device with the corresponding confession fixed contact that matches in diapire opening 151 positions of a housing 1 on the diapire 22.
Like Fig. 6; Two bulks increase 3, one U types of magnetic patch and increase magnetic patch 4 and the other position formation magnetic loop structure of a plurality of arc extinguishing grid pieces 5 in arc control device of side, the arc blow-out magnetic field that helps strengthening arc control device; Improve the suffered magnetic blow-out power of electric arc, can make electric arc get into arc extinguishing grid pieces more quickly.
Bulk of the present invention increases magnetic patch 3, U type, and to increase the mounting means of magnetic patch 4 simple and convenient; Bulk in the groove 121 on one housing, 1 two side 12,13 increases magnetic patch 3 and is separated by two side 12,13 encirclements; Two bulks are increased between the magnetic patch 3, and the U type increases between two legs of magnetic patch 4, increases between magnetic patch and the moving contact; Increase and play the insulation protection effect between magnetic patch and the fixed contact, the arc reignition situation in the time of can effectively preventing the circuit breaker disjunction between these positions.
Claims (1)
1. arc control device of moulding case low-voltage circuit breaker; Form body structure by first housing (1) and second housing (2); First housing (1) is the left-right symmetric structure; First housing (1) has roof (11), two side (12,13), rear wall (14) and diapire (15); It is characterized in that: have the rear wall openings (141) that supplies moving contact to stretch on the rear wall (14), have the diapire opening (151) that supplies fixed contact to stretch on the diapire (15), have on the diapire (15) with the U type and increase two grooves (152) that two legs of magnetic patch (4) match; Have several sidewall grooves (122) and a sidewall notches (121) on one sidewall (12); Fixedly install arc extinguishing grid pieces (5) on the sidewall groove (122), be set with bulk on the sidewall notches (121) and increase magnetic patch (3), it is identical with a sidewall (12) that another sidewall (13) is gone up characteristic; Two bulks increase magnetic patch (3), U type increases magnetic patch (4) and arc extinguishing grid pieces (5) forms the magnetic loop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010539377 CN101986415B (en) | 2010-11-11 | 2010-11-11 | Arc extinguishing chamber of molded case low voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010539377 CN101986415B (en) | 2010-11-11 | 2010-11-11 | Arc extinguishing chamber of molded case low voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101986415A CN101986415A (en) | 2011-03-16 |
| CN101986415B true CN101986415B (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010539377 Active CN101986415B (en) | 2010-11-11 | 2010-11-11 | Arc extinguishing chamber of molded case low voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101986415B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427009A (en) * | 2011-11-10 | 2012-04-25 | 江苏辉能电气有限公司 | Arc blowing device for low-voltage circuit breaker |
| CN102931041B (en) * | 2012-11-13 | 2015-08-26 | 安德利集团有限公司 | A kind ofly lead arc arc-control device and use this to lead the DC circuit breaker of arc arc-control device |
| CN103021754A (en) * | 2012-12-10 | 2013-04-03 | 江苏辉能电气有限公司 | Arc extinguishing system of molded case circuit breaker |
| CN103954919B (en) * | 2014-04-28 | 2018-04-27 | 温州大学 | The measuring device of miniature circuit breaker arc-chutes transient magnetic field |
| CN107221483A (en) * | 2017-06-09 | 2017-09-29 | 德力西电气有限公司 | A kind of modularization arc-control device |
| KR102542380B1 (en) * | 2020-03-13 | 2023-06-12 | 엘에스일렉트릭(주) | Arc extinguish part and air circuit breaker include the same |
| KR102558812B1 (en) * | 2020-03-13 | 2023-07-24 | 엘에스일렉트릭(주) | Arc extinguish part and air circuit breaker include the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174391A (en) * | 1996-07-05 | 1998-02-25 | 施耐德电器公司 | Breaking device for high rating electrical circuit breaker |
| CN1445802A (en) * | 2003-04-29 | 2003-10-01 | 浙江德力西电器股份有限公司 | Arc extinguishing equipment for breaker with plastic shell |
| CN1649055A (en) * | 2004-07-23 | 2005-08-03 | 浙江正泰电器股份有限公司 | Arc suppressing room of low voltage breaker |
| CN101763998A (en) * | 2009-10-23 | 2010-06-30 | 江苏辉能电气有限公司 | Integrated contact arc extinguishing system with movable fixed contact |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09171762A (en) * | 1996-12-26 | 1997-06-30 | Hitachi Ltd | Circuit breaker |
-
2010
- 2010-11-11 CN CN 201010539377 patent/CN101986415B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174391A (en) * | 1996-07-05 | 1998-02-25 | 施耐德电器公司 | Breaking device for high rating electrical circuit breaker |
| CN1445802A (en) * | 2003-04-29 | 2003-10-01 | 浙江德力西电器股份有限公司 | Arc extinguishing equipment for breaker with plastic shell |
| CN1649055A (en) * | 2004-07-23 | 2005-08-03 | 浙江正泰电器股份有限公司 | Arc suppressing room of low voltage breaker |
| CN101763998A (en) * | 2009-10-23 | 2010-06-30 | 江苏辉能电气有限公司 | Integrated contact arc extinguishing system with movable fixed contact |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-171762A 1997.06.30 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101986415A (en) | 2011-03-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Effective date of registration: 20220513 Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee after: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd. Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang District, Zhenjiang, Jiangsu A5 Patentee before: Jiangsu Phono Electric Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee after: Eaton Huineng low voltage electrical appliances (Jiangsu) Co.,Ltd. Address before: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee before: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |