CN201498438U - Arc extinction part of AC contactor - Google Patents
Arc extinction part of AC contactor Download PDFInfo
- Publication number
- CN201498438U CN201498438U CN2009201961284U CN200920196128U CN201498438U CN 201498438 U CN201498438 U CN 201498438U CN 2009201961284 U CN2009201961284 U CN 2009201961284U CN 200920196128 U CN200920196128 U CN 200920196128U CN 201498438 U CN201498438 U CN 201498438U
- Authority
- CN
- China
- Prior art keywords
- arc
- contactor
- hole
- arc extinction
- cover 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
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
An arc extinction part of an AC contactor mainly solves the problem of bad heat dissipation performance of the prior arching chamber, and is characterized in that a through hole (4) is arranged on a back board (2) of a chamber body (1). The arc extinction part of the AC contactor is improved on the basis of the prior art, practically verifies that the arc extinction part has a better heat dissipation effect, can meet the requirements of occasions which have long operation time, bigger multi-section fault current or excessively frequent operations, and has the characteristics of simple structure and good heat dissipation performance.
Description
Technical field:
The utility model relates to a kind of arc-control device of A.C. contactor, especially A.C. contactor arc extinguishing spare.
Background technology:
The general bigger A.C. contactor of capacity all is provided with arc-control device, so that rapid breaking arc avoids burning out main contact.Arc-extinguish chamber in the arc-control device is installed in the outside of moving contact, arc-extinguish chamber is to be used for the vitals of extinguish arcs, arc-extinguish chamber is generally made with materials such as asbestos cement, arc resistant plastic, potter's clay or glass fiber fabric swatch, be provided with arc extinguishing grid pieces in arc-extinguish chamber inside, owing to after dynamic and static contact separates, still have voltage to exist betwixt, make the molecule or the atom of medium between the dynamic and static contact (air, insulation wet goods), make it produce ionization, promptly between dynamic and static contact, formed electric arc.When producing ionization, the antipodal phenomenon of a kind of character and ionization also can appear, deionization phenomenon that Here it is, temperature is very big to the influence of deionization in this process, so electric arc is carried out strong cooling, reducing Arc Temperature rapidly, is the effective ways that strengthen deionization, is the main method of arc extinguishing so electric arc is carried out strong quick cooling.At present, arc-extinguish chamber in the arc-control device is generally " U " type spare, its backboard is a complete platy structure, and in use, the temperature that electric arc produces in the arc-extinguish chamber is higher, the heat dispersion of arc-extinguish chamber is poor, fault current long owing to running time, that repeatedly disjunction is bigger, operation reason such as too frequent make arc-extinguish chamber under the effect of high arc temperature repeatedly, and the surface is by deeply worried aging, form a kind of carbide that can conduct electricity, totally unfavorable to arc extinguishing.
The utility model content:
In order to overcome the deficiency of existing arc-extinguish chamber heat dispersion difference, the utility model provides a kind of A.C. contactor arc extinguishing spare, this A.C. contactor arc extinguishing spare improves on the basis of existing technology, draw this arc extinguishing spare through actual verification better radiating effect is arranged, can satisfy the demand in places such as fault current that for a long time, repeatedly disjunction is bigger, operation be too frequent, have the characteristics of simple in structure and perfect heat-dissipating.
The technical solution of the utility model is: this A.C. contactor arc extinguishing spare comprises cover body, and cover body is formed " U " type by backboard and side plate, and the backboard of cover body is provided with through hole.
Described through hole is circular hole or rectangular opening.
Described through hole is 2.
The utlity model has following beneficial effect: owing to take the backboard of the cover body in the such scheme to be provided with through hole, the high temperature that electric arc produces in the cover body can be by the heat radiation of the through hole on the cover body backboard, good heat dissipation effect, can prevent that cover body is at high temperature aging, arc temperature also is cut off after descending easily simultaneously.
Description of drawings:
Accompanying drawing 1 is a structure cutaway view of the present utility model.
1-cover body among the figure, 2-backboard, 3-side plate, 4-through hole.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this A.C. contactor arc extinguishing spare of this A.C. contactor arc extinguishing spare comprises cover body 1, and cover body 1 is formed " U " type by backboard 2 and side plate 3, and the backboard 2 of cover body 1 is provided with through hole 4.The high temperature that electric arc produces in the cover body 1 can be by 4 heat radiations of the through hole on the backboard 2, and good heat dissipation effect can prevent that cover body 1 is at high temperature aging, and arc temperature also is cut off after descending easily simultaneously.
Described through hole 4 is circular hole or rectangular opening, is beneficial to processing.
Described through hole 4 is 2.Through hole 4 can determine that the size of through hole 4 does not eject with electric arc and is as the criterion according to the size of cover body 1.
Claims (3)
1. an A.C. contactor arc extinguishing spare comprises cover body (1), and cover body (1) is formed " U " type by backboard (2) and side plate (3), it is characterized in that: the backboard (2) of cover body (1) is provided with through hole (4).
2. A.C. contactor arc extinguishing spare according to claim 1 is characterized in that: through hole (4) is circular hole or rectangular opening.
3. A.C. contactor arc extinguishing spare according to claim 1 and 2 is characterized in that: through hole (4) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201961284U CN201498438U (en) | 2009-09-05 | 2009-09-05 | Arc extinction part of AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201961284U CN201498438U (en) | 2009-09-05 | 2009-09-05 | Arc extinction part of AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498438U true CN201498438U (en) | 2010-06-02 |
Family
ID=42441639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201961284U Expired - Fee Related CN201498438U (en) | 2009-09-05 | 2009-09-05 | Arc extinction part of AC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI501283B (en) * | 2012-11-12 | 2015-09-21 | Mitsubishi Electric Corp | Switch |
| CN105990069A (en) * | 2016-05-05 | 2016-10-05 | 厦门宏发开关设备有限公司 | Arc isolation structure of contactor |
-
2009
- 2009-09-05 CN CN2009201961284U patent/CN201498438U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI501283B (en) * | 2012-11-12 | 2015-09-21 | Mitsubishi Electric Corp | Switch |
| CN105990069A (en) * | 2016-05-05 | 2016-10-05 | 厦门宏发开关设备有限公司 | Arc isolation structure of contactor |
| CN105990069B (en) * | 2016-05-05 | 2018-02-27 | 厦门宏发开关设备有限公司 | A kind of arc structure of contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201498438U (en) | Arc extinction part of AC contactor | |
| CN206195172U (en) | Electric power cabinet dehydrating unit case | |
| CN205959932U (en) | Circuit breaker striking structure | |
| CN201898292U (en) | Partition plate for heat dissipation and arc extinction in medium voltage switchgear | |
| CN207651439U (en) | A kind of arc-extinguishing chamber of circuit breaker and breaker | |
| CN205845871U (en) | The contact arc-extinguishing system of moulded case circuit breaker | |
| CN202638587U (en) | Electric precipitator and heating device of electric precipitator beam | |
| CN201178045Y (en) | Arc-extinguishing chamber for low voltage circuit breaker | |
| CN201820726U (en) | Arc extinguishing passage of circuit breaker | |
| CN206806277U (en) | Arc extinguishing structure and breaker of plastic casing applied to breaker of plastic casing | |
| CN205335158U (en) | Electric component shutter of crouching is driven greatly to heavy current | |
| CN204045417U (en) | A kind of heat radiating type contact of double power supply automatic switching switch | |
| CN201138630Y (en) | Contact knife of indoor high-voltage isolating switch | |
| CN207781469U (en) | A kind of vacuum interrupter improving calorific value | |
| CN203312142U (en) | Vacuum circuit breaker | |
| CN204927114U (en) | Power switch | |
| CN101556880A (en) | Grid sheet arc extinguish chamber of AC contactor with double arc starting sheet | |
| CN202917417U (en) | Arc extinguishing structure of circuit breaker | |
| CN206163339U (en) | Touch sword type electric switch | |
| CN203839268U (en) | Indoor high-pressure solid-sealed vacuum circuit breaker | |
| CN202384280U (en) | Grid type arc extinguish chamber for frame circuit breaker | |
| CN103646832B (en) | The arc leading and suppressing device of chopper | |
| CN208753190U (en) | A kind of arc extinguishing grid structure of breaker of plastic casing | |
| CN209045474U (en) | A kind of arc-extinguish chamber | |
| CN103198948B (en) | Switch device capable of fast changing over induction furnace bodies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |