CN102005345B - Arc extinguishing module of molded case low-voltage circuit breaker - Google Patents
Arc extinguishing module of molded case low-voltage circuit breaker Download PDFInfo
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- CN102005345B CN102005345B CN2010105393795A CN201010539379A CN102005345B CN 102005345 B CN102005345 B CN 102005345B CN 2010105393795 A CN2010105393795 A CN 2010105393795A CN 201010539379 A CN201010539379 A CN 201010539379A CN 102005345 B CN102005345 B CN 102005345B
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- arc
- fixed contact
- arc extinguishing
- striking
- circuit breaker
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Abstract
The invention discloses an arc extinguishing module of a molded case low-voltage circuit breaker. A shell of an arc extinguish chamber is made of a gas producing insulating material and is in a cavity structure which is provided with an opening on the front surface, a bottom wall is provided with a bottom wall opening into which a fixed contact is inserted, and a rear wall is provided with a rear wall opening into which a moving contact is inserted. A left side wall and a right side wall are respectively provided with a plurality of position-corresponding long and narrow through grooves, and arc extinguishing grids and arc striking grids are arranged in the long and narrow through grooves. Two side edges of one end of each arc striking grid are respectively provided with a boss matched with the long and narrow through groove in an extending mode, and the other end of each arc striking grid is provided with a bent foot in an extending mode. Combination screws are used for connecting the arc striking grids and the fixed contact. When the circuit breaker presents electric arcs, the arc striking grids and the fixed contact form equal electric potentials. In the invention, the arc extinguishing grids are inserted into the through grooves of the two side walls of the shell of the arc extinguish chamber, the arc extinguishing grids are not easy to drop out, and the assembly is simple and convenient. When the circuit breaker presents the electric arcs, the arc striking grids and the fixed contact form the equal electric potentials so that the electric arcs beneficially enter the arc extinguish chamber.
Description
Technical field
The present invention relates to a kind of case low-voltage circuit breaker of moulding, be specifically related to the arc extinguishing module of breaker of plastic casing, belong to the low-voltage electrical technical field.
Background technology
Existing breaker of plastic casing arc extinguishing module has a casing, and casing is assemblied by two housings, in casing, places arc extinguishing grid pieces.The front of one of them housing is uncovered, and inside sidewalls has a plurality of boss respect to one another, is used for fixing arc extinguishing grid pieces, and diapire and rear wall have opening, and arc extinguishing grid pieces is installed between a plurality of boss of sidewall from the uncovered insertion housing in front.Another housing inserts fixing equipped from the front of an above-mentioned housing, make casing of the common composition of two housings.The weak point that this arc quenching chamber structure exists is: number of elements is more, and cost is increased; For making the arc extinguishing grid pieces can be by firmly, it is darker that the slot position that forms between the boss of arc extinguishing grid pieces is installed in the above-mentioned housing, thus operating difficulties when arc extinguishing grid pieces is installed.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, number of elements that number of elements is less than traditional arc-chutes, make things convenient for the arc extinguishing module of the breaker of plastic casing of arc extinguishing grid pieces assembling and function admirable.
The technical scheme that the present invention adopts is: comprise the arc control device housing; Arc extinguishing grid pieces; Striking grid sheet and fixed contact, arc control device housing adopt the aerogenesis insulating material to process, and are that a front has uncovered cavity body structure; Other five faces of cavity body structure are respectively diapire, roof, rear wall, left side wall, right side wall; Have the diapire opening that supplies fixed contact to stretch on the diapire, have the rear wall openings that supplies moving contact to stretch on the rear wall; All has the corresponding long and narrow groove in a plurality of positions on left side wall and the right side wall; Arc extinguishing grid pieces and striking grid sheet are set in the long and narrow groove; Respectively extend a boss that matches with long and narrow groove on the one end dual-side of striking grid sheet, the other end of striking grid sheet extends a bending leg, and screw assemblies connects striking grid sheet and fixed contact; When electric arc appearred in circuit breaker, striking grid sheet and fixed contact formed equipotential.
The invention has the beneficial effects as follows:
1, arc extinguishing grid pieces is inserted from the side the groove of arc control device housing two side, make whole arc control device module place base, the groove that relies on base is fixing about to arc control device, makes arc extinguishing grid pieces be difficult for dropping, and assembles simple and convenient.
2, the arc control device housing is the aerogenesis insulating material; The grid sheet inserts groove and is equivalent between the grid sheet, insert the aerogenesis insulating material; Occurring under the situation of electric arc; The aerogenesis insulating material can be emitted gaseous material, and this material can exert an influence by the article on plasma body, thereby reduces arcing phenomenon and associated consequences thereof.
3, can suitably design the wall thickness of arc control device housing left and right sides sidewall, the width that is equivalent to arc control device insertion insulating material is suitable, and electric arc and aerogenesis insulating material are fully acted on.
4, after an end of striking grid sheet inserts arc control device housing two side groove; The other end is connected fixing with reliable contact with fixed contact through screw assemblies; When in circuit breaker, electric arc occurring, striking grid sheet and fixed contact form equipotential, help electric arc and get into arc control device smoothly.
Description of drawings
Fig. 1 is a structure chart of the present invention;
Fig. 2 is the fractionation structural representation of Fig. 1;
Fig. 3 is the Facad structure figure of arc control device housing 1 among Fig. 2;
Fig. 4 is the structure enlarged drawing of striking grid sheet 3 among Fig. 2;
Fig. 5 is the structure enlarged drawing of fixed contact 4 among Fig. 2;
Among the figure: 1. arc control device housing; 2. arc extinguishing grid pieces; 3. striking grid sheet; 4. fixed contact; 5. screw assemblies; 11. diapire; 12. roof; 13. rear wall; 14. left side wall; 15. right side wall; 31. boss; 32. bending leg; 33. screwed hole; 41. screwed hole; 42. hole; 111. diapire opening; 131. rear wall openings; 141. long and narrow groove.
Embodiment
Referring to Fig. 1-3, the present invention mainly comprises arc control device housing 1, arc extinguishing grid pieces 2, striking grid sheet 3 and fixed contact 4.Wherein, arc control device housing 1 adopts the aerogenesis insulating material to process, and is that a front has uncovered cavity body structure, and other five faces of cavity body structure are respectively diapire 11, roof 12, rear wall 13, left side wall 14, right side wall 15.Relative with the front is rear wall 13, and the above and below respectively is roof 12 and diapire 11.Have diapire opening 111 on the diapire 11, supply fixed contact 4 to stretch in the arc control device housing 1; Have rear wall openings 131 on the rear wall 13, supply moving contact to stretch into action in the arc control device housing 1.All have the corresponding long and narrow groove 141 in a plurality of positions on left side wall 14 and the right side wall 15, supply arc extinguishing grid pieces 2 and striking grid sheet 3 to insert and place, the length of long and narrow groove 141 is corresponding with the length of arc extinguishing grid pieces 2 and striking grid sheet 3 respectively.
As shown in Figure 5, fixed contact 4 is bending row, the perforate 42 that is provided with 3 screwed holes 41 and supplies screw assemblies 5 to pass through, and screwed hole 41 supplies fixed contact 4 and base to fix.Like Fig. 2, shown in 4, on an end dual-side of striking grid sheet 3, respectively extend a boss 31, the other end of striking grid sheet 3 extends a bending leg 32, and bending leg 32 is provided with a screwed hole 33 that matches with screw assemblies 5.The boss 31 and the long and narrow groove 141 of striking grid sheet 3 match; Boss 31 inserts in the long and narrow groove 141, and screw assemblies 5 passes the screwed hole 33 on perforate 42 and the striking grid sheet 3 on the fixed contact 4, through screw assemblies 5 bending leg 32 of striking grid sheet 3 is connected with fixed contact 4 and fixes; When in circuit breaker, electric arc occurring; Striking grid sheet 3 forms equipotential with fixed contact 4, helps electric arc and gets into arc control device smoothly, improves the circuit breaker interrupting performance.
When the present invention installs, only need arc extinguishing grid pieces 2 and striking grid sheet 3 are inserted corresponding long and narrow groove 141 from sidewall 14 or 15, the bending leg 32 of striking grid sheet 3 is closely contacted with the fixed contact that is fixed in base 4 through screw assemblies 5.Simultaneously, the arc extinguishing module is positioned over base after, lean on fixedly arc extinguishing module both sides of base.
Claims (1)
1. arc extinguishing module of moulding case low-voltage circuit breaker; Comprise arc control device housing (1), arc extinguishing grid pieces (2), striking grid sheet (3) and fixed contact (4); It is characterized in that: arc control device housing (1) adopts the aerogenesis insulating material to process; Be that a front has uncovered cavity body structure, other five faces of cavity body structure are respectively diapire (11), roof (12), rear wall (13), left side wall (14), right side wall (15); Have the diapire opening (111) that confession fixed contact (4) stretches on the diapire (11), have the rear wall openings (131) that supplies moving contact to stretch on the rear wall (13); All have the corresponding long and narrow groove (141) in a plurality of positions on left side wall (14) and the right side wall (15), arc extinguishing grid pieces (2) and striking grid sheet (3) are set in the long and narrow groove (141); Respectively extend a boss (31) that matches with long and narrow groove (141) on the one end dual-side of striking grid sheet (3); The other end of striking grid sheet (3) extends a bending leg (32), and screw assemblies (5) is connected striking grid sheet (3) fixing through the screwed hole (32) on striking grid sheet (3) bending leg (32) with fixed contact (4); When electric arc appearred in circuit breaker, striking grid sheet (3) formed equipotential with fixed contact (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105393795A CN102005345B (en) | 2010-11-11 | 2010-11-11 | Arc extinguishing module of molded case low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105393795A CN102005345B (en) | 2010-11-11 | 2010-11-11 | Arc extinguishing module of molded case low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102005345A CN102005345A (en) | 2011-04-06 |
| CN102005345B true CN102005345B (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105393795A Active CN102005345B (en) | 2010-11-11 | 2010-11-11 | Arc extinguishing module of molded case low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102005345B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760595A (en) * | 2011-04-28 | 2012-10-31 | 北京正北元电器有限公司 | Arc extinguishing chamber with high arc-extinguishing performance |
| CN105097374B (en) * | 2014-05-16 | 2018-01-19 | 北京人民电器厂有限公司 | A kind of breaker beneficial to the quick movement of electric arc and elongation |
| CN106783447B (en) * | 2017-03-22 | 2019-04-16 | 德力西电气有限公司 | A kind of circuit breaker forced extinguisher |
| CN107845551A (en) * | 2017-09-21 | 2018-03-27 | 天津市百利电气有限公司 | Splashing electric arc can be introduced to the mold cased circuit breaker of arc-chutes |
| CN109559947B (en) * | 2017-09-27 | 2020-11-27 | 常熟开关制造有限公司(原常熟开关厂） | Multi-pole circuit breaker |
| CN110034000B (en) * | 2019-05-08 | 2024-08-06 | 宁夏力成电气集团有限公司 | Arc striking static contact and molded case circuit breaker thereof |
| CN116190176B (en) * | 2023-04-07 | 2024-07-09 | 南京双京电器集团有限公司 | Low-voltage circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0557621A1 (en) * | 1991-12-23 | 1993-09-01 | Koninklijke Philips Electronics N.V. | Trip link latch and interpole link for a circuit breaker |
| WO2000041202A1 (en) * | 1998-12-28 | 2000-07-13 | Mitsubishi Denki Kabushiki Kaisha | Current limiter and circuit breaker with current-limiting function |
| CN1812034A (en) * | 2006-02-20 | 2006-08-02 | 上海电器科学研究所（集团）有限公司 | Circuit breaker and contact arc-extinguishing system |
| JP4138665B2 (en) * | 2002-01-31 | 2008-08-27 | 三菱電機株式会社 | Air circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070268100A1 (en) * | 2006-05-18 | 2007-11-22 | Eaton Corporation | Electrical switching apparatus, and movable contact assembly and shield therefor |
-
2010
- 2010-11-11 CN CN2010105393795A patent/CN102005345B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0557621A1 (en) * | 1991-12-23 | 1993-09-01 | Koninklijke Philips Electronics N.V. | Trip link latch and interpole link for a circuit breaker |
| WO2000041202A1 (en) * | 1998-12-28 | 2000-07-13 | Mitsubishi Denki Kabushiki Kaisha | Current limiter and circuit breaker with current-limiting function |
| JP4138665B2 (en) * | 2002-01-31 | 2008-08-27 | 三菱電機株式会社 | Air circuit breaker |
| CN1812034A (en) * | 2006-02-20 | 2006-08-02 | 上海电器科学研究所（集团）有限公司 | Circuit breaker and contact arc-extinguishing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102005345A (en) | 2011-04-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Effective date of registration: 20220516 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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| CP01 | Change in the name or title of a patent holder | ||
| 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. |