CN200983346Y - A high temperature resisting breaker - Google Patents
A high temperature resisting breaker Download PDFInfo
- Publication number
- CN200983346Y CN200983346Y CN 200620140655 CN200620140655U CN200983346Y CN 200983346 Y CN200983346 Y CN 200983346Y CN 200620140655 CN200620140655 CN 200620140655 CN 200620140655 U CN200620140655 U CN 200620140655U CN 200983346 Y CN200983346 Y CN 200983346Y
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- contact shoes
- support section
- cross
- arc
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a power electronics product, in particular to a circuit breaker. The thermo-stable circuit breaker employs a fence arc blow-out modus, and comprises an arc blow-out device, a cross-angle ranged power-side stationary and a charge-side stationary contact boot which are positioned in a shell and cross-diagonally arranged, a cross-over movable contact boot extending between the stationary contact boots, and a rotary contact boot retainer, wherein the retainer retains in relative to a breaking and enclosing device of the circuit breaker, and is connected with the movable contact boot and a pressure spring, the movable contact boot is opened through the electro-magnetic force produced by the over-current flow. An arc blow-out cover of the circuit breaker employs a compound structure of china and metal plate, which is more thermo-stable than a circuit breaker employing red fish paper and an iron-tablet compound structure arc blow-out cover in the prior art, thereby the utility model can not be autoignited, and is long in life time and more durable.
Description
Technical field
The utility model relates to a kind of power electronic product, especially a kind of circuit breaker.
Background technology
Circuit breaker is power plant, power transformation most important control and protection equipment in the electric power system in one's power, and it has control action: according to the needs of power system operation, with part or all of electric equipment, and partly or entirely circuit is thrown people or out of service; And protective effect: when an electric power system part breaks down; it and protective device, automatics match; with the excision rapidly from system of this faulty component; reduce the power failure scope; the accident that prevents enlarges; all kinds of electric equipments are not damaged in the protection system, guarantee system's fault-free part safe operation.
Critical piece in the circuit breaker is an arc-extinguish chamber.Present arc-extinguish chamber adopts the rectangle iron plate of sandwich tape V-arrangement opening, and iron plate side and base are fixed with red steel paper, through the electric current above 600 amperes the time, just cause the red steel paper burning easily, cause arc-extinguish chamber to fall apart, damage whole circuit breaker, safety in production is caused danger.
Summary of the invention
The purpose of this utility model be for provide a kind of relatively safety, can not spontaneous combustion circuit breaker.
For realizing the purpose of this utility model, this specification provides a kind of high temperature resistant circuit breaker, use the fence arc quenching method, comprise arc-control device, the in the enclosure and mutual fixing fixing contact shoes of contact shoes and a load side of the mains side arranged of diagonal angle, rotate the contact shoes keeper at the cross-over connection activity contact shoes that fixedly extends between the contact shoes and, wherein keeper can disconnect with respect to one of circuit breaker and keep and be connected an activity contact shoes and a compression spring with close mechanism, and the electromagnetic repulsion force that movable contact shoes is produced during by overcurrent flows is opened.Arc-control device comprises to be inlayed connection or is bonded together support section and grid sheet; Support section is the solid cuboid that ceramic roasting forms, and it is the opening of V-arrangement that the cross section is wherein arranged on the end face, and aperture position has the groove of some and parallel sided, and the support section bottom surface has two rankings to put the through hole that staggers; The grid sheet is the rectangular metal sheet of band V-arrangement opening, replaces the part rib of the groove on the support section.
This circuit breaker adopts the arc-extinguish chamber of pottery and sheet metal composite construction, than the circuit breaker of available technology adopting red steel paper and iron plate composite construction arc-extinguish chamber heatproof more, can spontaneous combustion, and longer service life, more durable.
The purpose of this utility model, feature and advantage will be in conjunction with the embodiments, are further described with reference to accompanying drawing.
Description of drawings
Fig. 1 is the structure chart of arc-extinguish chamber in the prior art;
Fig. 2 is the structure chart of arc-extinguish chamber in the utility model;
Wherein: 1 is support section, and 2 is the grid sheet, and 3 is red steel paper, and 4 is iron plate.
Embodiment
With reference to last figure, provide following embodiment.To help to understand the utility model by embodiment, but not limit content of the present utility model.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection range of the present utility model.
This high temperature resistant circuit breaker, use the fence arc quenching method, comprise arc-control device, the in the enclosure and mutual fixing fixing contact shoes of contact shoes and a load side of the mains side arranged of diagonal angle, rotate the contact shoes keeper at the cross-over connection activity contact shoes that fixedly extends between the contact shoes and, wherein keeper can disconnect with respect to one of circuit breaker and keep and be connected an activity contact shoes and a compression spring with close mechanism, and the electromagnetic repulsion force that movable contact shoes is produced during by overcurrent flows is opened.Arc-control device comprises to be inlayed connection or is bonded together support section 1 and grid sheet 2; The solid cuboid that support section 1 forms for ceramic roasting, it is the opening of V-arrangement that the cross section is wherein arranged on the end face, and aperture position has the groove of some and parallel sided, and support section 1 bottom surface has two rankings to put the through hole that staggers; Grid sheet 2 is the rectangular metal sheet of band V-arrangement opening, replaces the part rib of the groove on the support section 1.
Claims (2)
1, a kind of high temperature resistant circuit breaker, use the fence arc quenching method, it is characterized in that: comprise arc-control device, the in the enclosure and mutual fixing fixing contact shoes of contact shoes and a load side of the mains side arranged of diagonal angle, rotate the contact shoes keeper at the cross-over connection activity contact shoes that fixedly extends between the contact shoes and, wherein keeper can keep and be connected an activity contact shoes and a compression spring with respect to a disconnection of circuit breaker with close mechanism, the electromagnetic repulsion force that movable contact shoes is produced during by overcurrent flows is opened, and described arc-control device comprises support section (1) and grid sheet (2); The solid cuboid that support section (1) forms for ceramic roasting, it is the opening of V-arrangement that the cross section is wherein arranged on the end face, and aperture position has the groove of some and parallel sided, and support section (1) bottom surface has two rankings to put the through hole that staggers; Grid sheet (2) is the rectangular metal sheet of band V-arrangement opening, replaces the part rib of the groove on the support section (1).
2, circuit breaker according to claim 1 is characterized in that: described grid sheet (2) and support section (1) are connected or cohere for inlaying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140655 CN200983346Y (en) | 2006-12-04 | 2006-12-04 | A high temperature resisting breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140655 CN200983346Y (en) | 2006-12-04 | 2006-12-04 | A high temperature resisting breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983346Y true CN200983346Y (en) | 2007-11-28 |
Family
ID=38910497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140655 Expired - Fee Related CN200983346Y (en) | 2006-12-04 | 2006-12-04 | A high temperature resisting breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200983346Y (en) |
-
2006
- 2006-12-04 CN CN 200620140655 patent/CN200983346Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |