CN201112307Y - Quenching chamber of circuit breaker - Google Patents
Quenching chamber of circuit breaker Download PDFInfo
- Publication number
- CN201112307Y CN201112307Y CNU2007200451266U CN200720045126U CN201112307Y CN 201112307 Y CN201112307 Y CN 201112307Y CN U2007200451266 U CNU2007200451266 U CN U2007200451266U CN 200720045126 U CN200720045126 U CN 200720045126U CN 201112307 Y CN201112307 Y CN 201112307Y
- Authority
- CN
- China
- Prior art keywords
- arc
- housing
- cover plate
- circuit breaker
- shell body
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an arc extinguish chamber of a circuit breaker, which comprises a shell body and a multilayer arc extinguish splitter plate which is installed in the shell body. Inner walls at both sides of the shell body are correspondingly provided with slots and the arc extinguish splitter plate is inserted into the slots. The end of the shell body is provided with an adducent inclined plane and an arc ignition plate is inserted and connected in the slot at the end of the shell body. A flanging at the lower part of the arc ignition plate is positioned at one side of the inclined plane and the bottom of the arc ignition plate is lower than the bottom of the arc extinguish splitter plate. A cover plate which is installed on the top of the shell body is a box body which is provided with a top surface and a bottom surface as well as external chimb positioned around the cover plate. The top surface and the bottom surface are respectively provided with a lower ventilation rabbet and an upper ventilation rabbet and the inner walls at both sides of the cover plate are provided with inner chimb. A protective cover which is provided with meshes is installed on the inner chimb of the cover plate. The arc extinguish chamber of a circuit breaker is characterized by simple structure, convenient installation, safe and reliable operation, good performance in the arc extinguishing.
Description
Technical field
The utility model relates to a kind of arc-extinguishing chamber of circuit breaker.
Background technology
Circuit breaker is when divide-shut brake, contact from touch process separately, the gap between two contacts from small to large, under the effect of voltage, the dielectric in gap can be ionized puncture, form electric arc, after electric arc formed, the heat of generation is the ionization of aggravation medium further, enlarge electric arc, make the circuit breaker can't open circuit,, must be installed in two contacts in the arc control device in order to stop this process.Usually arc control device are made of the multilayer arc extinguishing grid pieces in a housing and the installation housing, and with the many passages of the inner formation of arc control device, subdividing the arc, and the high pressure draught that utilizes high arc temperature to produce are blown out electric arc by the passage spout of arc control device.But can't be installed in the arc control device for contact, then arc quenching effect is unsatisfactory, can influence the breaking capacity and the electrical endurance of arc control device.
Summary of the invention
A kind of simple in structure, easy for installation, safe and reliable, arc-extinguishing chamber of circuit breaker that arc quenching effect is good is provided on the purpose of this utility model.
The utility model is that the technical scheme that achieves the above object is: a kind of arc-extinguishing chamber of circuit breaker; comprise housing and be installed in the interior multilayer arc extinguishing grid pieces of housing; it is characterized in that: correspondence is provided with slot on the inwall of described housing both sides; arc extinguishing grid pieces is inserted in each slot; the inclined plane of in housing distolateral has, receiving; the striking sheet is plugged in the distolateral slot of housing; the flanging of striking sheet bottom is positioned at inclined plane one side; the bottom of striking sheet is lower than the bottom of each arc extinguishing grid pieces; the top of housing also is equipped with cover plate; cover plate has outer chimb around being; and has a box-like body of end face and bottom surface; end face and bottom surface are respectively equipped with ventilation notch and following ventilation notch; the inwall of cover plate both sides is provided with inner raised edge, and the protective cover with mesh is installed on the inner raised edge of cover plate.
Arc extinguishing grid pieces of the present utility model is to be plugged in the housing, and is simple in structure, easy for installation, can enhance productivity.Especially the striking sheet also is plugged on the distolateral of housing, therefore in the electric arc guiding arc control device that can be by the striking sheet be produced during to the contact disjunction, by the passage that opens wide between each arc extinguishing grid pieces, electric arc is divided into the plurality of sections short arc by arc extinguishing grid pieces, strengthen and the air contact area, improve cooling rate, shorten the quenching time, and improve the arc quenching effect of circuit breaker.Cover plate of the present utility model adopts the double-decker of bottom surface and end face, and bottom surface and end face be provided with the ventilation notch, not only has heat dissipation ventilation effect preferably, and be provided with protective cover between bottom surface and end face, uses more safe and reliable.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Fig. 3 is the structural representation that Fig. 1 removes cover plate and arc extinguishing grid pieces.
Wherein: 1-housing, 11-boss, 12-slot, 13-inclined plane, 2-cover plate, 21-end face, the last ventilation notch of 22-, 23-bottom surface, ventilation notch under the 24-, 25-inner raised edge, 3-striking sheet, 4-arc extinguishing grid pieces, 5-protective cover, 6-securing member.
Embodiment
See arc-extinguishing chamber of circuit breaker of the present utility model shown in Fig. 1～3, comprise housing 1 and the multilayer arc extinguishing grid pieces 4 that is installed in the housing 1, correspondence is provided with slot 12 on the inwall of housing 1 both sides, the middle and lower part of a cell wall of this slot 12 has the contact-making surface of lopsidedness in groove, can be to arc extinguishing grid pieces 4 location, V-shaped or the U-shaped of arc extinguishing grid pieces 4 also is inserted in each slot 12, lower end side at housing 1 has the inclined plane 13 of receiving in, striking sheet 3 is plugged in the distolateral slot 12 of housing 1, the bottom flanging of striking sheet 3 then is positioned at 13 places, inclined plane of housing 1, the bottom of striking sheet 3 is lower than the bottom of arc extinguishing grid pieces 4, the electric arc that is produced during with the contact disjunction by striking sheet 3 leads rapidly in the arc control device, by arc extinguishing grid pieces 4 electric arc is divided into the plurality of sections short arc again, realizes arc extinguishing at last.Side at housing 1 also has a boss 11, and boss 11 is provided with installing hole, conveniently arc control device is installed on the housing of circuit breaker.See shown in 1,2, the top of the utility model housing 1 also is equipped with cover plate 2, cover plate 2 is installed in the installing hole of housing 1 end face by securing member 6, cover plate 2 of the present utility model has outer chimb and has end face 21 and a box-like body of bottom surface 23 around being, end face 21 and bottom surface 23 are respectively equipped with ventilation notch 22 and following ventilation notch 24, see shown in Figure 2, the groove width of the 23 times ventilation notches 24 in bottom surface is greater than the groove width of ventilation notch 22 on the end face 21, and preferably the following ventilation notch 24 of bottom surface 23 and the last ventilation notch 22 on the end face 21 interlace along the groove width direction.See shown in Figure 2ly, the both sides of cover plate 2 inwalls are provided with inner raised edge 25, and the protective cover 5 with mesh is installed on the inner raised edge 25 of cover plate 2, but protective cover 5 one decks or two layers of setting.
Claims (4)
1; a kind of arc-extinguishing chamber of circuit breaker; comprise housing (1) and be installed in the interior multilayer arc extinguishing grid pieces (4) of housing (1); it is characterized in that: the inwall of described housing (1) both sides is provided with corresponding slot (12); arc extinguishing grid pieces (4) is inserted in each slot (12); the inclined plane (13) of in housing (1) distolateral has, receiving; striking sheet (3) is plugged in the distolateral slot (12) of housing (1); the flanging of striking sheet (3) bottom is positioned at inclined plane (13) one sides; the bottom of striking sheet (3) is lower than the bottom of arc extinguishing grid pieces (4); the top of housing (1) also is equipped with cover plate (2); cover plate (2) has outer chimb around being; and has a box-like body of end face (21) and bottom surface (23); end face (21) and bottom surface (23) are respectively equipped with ventilation notch (22) and following ventilation notch (24); the inwall of cover plate (2) both sides is provided with inner raised edge (25), and the protective cover (5) with mesh is installed on the inner raised edge (25) of cover plate (2).
2, arc-extinguishing chamber of circuit breaker according to claim 1 is characterized in that: the groove width of ventilation notch (24) goes up the groove width of ventilation notch (22) under described bottom surface (23) greater than end face (21).
3, arc-extinguishing chamber of circuit breaker according to claim 1 is characterized in that: the following ventilation notch (24) of described bottom surface (23) interlaces along the groove width direction with the last ventilation notch (22) of end face (21).
4, arc-extinguishing chamber of circuit breaker according to claim 1 is characterized in that: the middle and lower part of a cell wall of described housing (1) slot (12) has the contact-making surface of lopsidedness in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200451266U CN201112307Y (en) | 2007-08-24 | 2007-08-24 | Quenching chamber of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200451266U CN201112307Y (en) | 2007-08-24 | 2007-08-24 | Quenching chamber of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112307Y true CN201112307Y (en) | 2008-09-10 |
Family
ID=39964052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200451266U Expired - Fee Related CN201112307Y (en) | 2007-08-24 | 2007-08-24 | Quenching chamber of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112307Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629536A (en) * | 2012-04-06 | 2012-08-08 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguish chamber of circuit breaker |
| CN111524728A (en) * | 2020-04-30 | 2020-08-11 | 代勒智能电网技术(南京)有限公司 | Arc extinguish chamber structure |
-
2007
- 2007-08-24 CN CNU2007200451266U patent/CN201112307Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629536A (en) * | 2012-04-06 | 2012-08-08 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguish chamber of circuit breaker |
| CN111524728A (en) * | 2020-04-30 | 2020-08-11 | 代勒智能电网技术(南京)有限公司 | Arc extinguish chamber structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20130824 |