CN107680852B - A kind of breaker with arc extinguishing effect - Google Patents
A kind of breaker with arc extinguishing effect Download PDFInfo
- Publication number
- CN107680852B CN107680852B CN201711137223.2A CN201711137223A CN107680852B CN 107680852 B CN107680852 B CN 107680852B CN 201711137223 A CN201711137223 A CN 201711137223A CN 107680852 B CN107680852 B CN 107680852B
- Authority
- CN
- China
- Prior art keywords
- metal grid
- breaker
- arc extinguishing
- static contact
- insulation box
- 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.)
- Active
Links
- 230000000694 effects Effects 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 38
- 238000004880 explosion Methods 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 9
- 230000008014 freezing Effects 0.000 claims description 9
- 238000007710 freezing Methods 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
Abstract
The present invention relates to a kind of breakers with arc extinguishing effect, including shell, moving contact and static contact, and it is set in the housing the explosion chamber in portion, the explosion chamber includes insulation box and metal grid, metal grid, which is installed with, runs through slot for what moving contact moved up and down, and static contact is located at through the lower section of slot；The edge of the metal grid is connect with insulation box, and metal grid is stepped construction, and metal grid is greater than proximal end thickness relative to the distal thickness of static contact；The surface of the metal grid is equipped with several protrusions, and the protrusion of adjacent metal grid is to be oppositely arranged.Breaker of the invention has explosion chamber, can play the role of rapid arc extinguishing to electric arc, extend the service life of breaker.
Description
Technical field
The present invention relates to a kind of breakers with arc extinguishing effect, belong to field of electrical equipment.
Background technique
Breaker as electric power apply and distribution in route on a kind of common electric appliance, main function is for protecting electricity
The safety of device route and equipment, when the failures such as overload, short circuit occur for electric wiring or electrical equipment, can guarantee route with
The safety of equipment, therefore be widely used.But due to breaker combine and disjunction using touch switch realization,
Breaker burns open circuit so that breaker combines and break delay in the presence for combining with having electric arc in breaking course
The contact of device touch switch, security performance is not strong, and the service life of breaker is also influenced.
Summary of the invention
To solve the above problems, the present invention provides a kind of breakers with arc extinguishing effect, the specific scheme is that
A kind of breaker with arc extinguishing effect, including shell, moving contact and static contact, and it is set in the housing disappearing for portion
Arc chamber, the explosion chamber include insulation box and metal grid, and metal grid is installed with to be run through for what moving contact moved up and down
Slot, static contact are located at through the lower section of slot；The edge of the metal grid is connect with insulation box, and metal grid is staged knot
Structure, metal grid are greater than proximal end thickness relative to the distal thickness of static contact；The surface of the metal grid is equipped with several protrusions,
And the protrusion of adjacent metal grid is to be oppositely arranged.
Further, the side wall of the insulation box is ceramic layer, and the ceramic layer is sandwich, is filled in interlayer
Freezing by change of state medium.
Further, the freezing by change of state medium is low melting point fused salt.
Further, in the interlayer of the edge insertion ceramic layer of the metal grid.
Breaker in the present invention uses metal gate chip explosion chamber, and the arcing between moving contact and static contact is in explosion chamber
It is interior to carry out rapid arc extinguishing；Traditional metal gate chip explosion chamber uses the grid of uniform thickness, and in actual use, electric arc concentrates on leaning on
One end of nearly contact, influences its arc quenching effect；In the present solution, metal grid uses stepped construction, between adjacent grid
Spacing is successively decreased in gradient along the direction far from contact, is conducive in arc extinguishing, the uniformity that electric arc is distributed along grid surface, grid
The protrusion on surface can be used as point of discharge, further increase the uniformity of surface-discharge, improves arc extinguishing efficiency, can extend breaker
Service life；In improvement project, freezing by change of state medium is set in the side wall of insulation box, since electric arc can make in explosion chamber
Temperature sharply increase, freezing by change of state medium heating when undergo phase transition, to refrigeration is played in explosion chamber, can play auxiliary
Help the effect of arc extinguishing.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of metal grid in the present invention；
Fig. 3 is the structural schematic diagram of insulation box in the present invention.
Specific embodiment
A kind of breaker with arc extinguishing effect as shown in Figs. 1-3, including shell 1, moving contact 2 and static contact 3, and
Explosion chamber inside shell 1, the explosion chamber include insulation box 4 and metal grid 5, and metal grid 5, which is installed with, to be used for
What moving contact 2 moved up and down runs through slot, and static contact 3 is located at through the lower section of slot；The edge and insulation box of the metal grid 5
4 connections, metal grid 5 are stepped construction, and metal grid 5 is greater than proximal end thickness relative to the distal thickness of static contact 3；It is described
The surface of metal grid 5 is equipped with several raised 51, and the protrusion 51 of adjacent metal grid 5 is to be oppositely arranged.
The side wall of the insulation box 4 is ceramic layer 41, and the ceramic layer 41 is sandwich, is filled with phase transformation in interlayer
Refrigerant 42.
The freezing by change of state medium 42 is low melting point fused salt.
In the interlayer of the edge insertion ceramic layer of the metal grid 5.
Breaker in the present invention uses metal gate chip explosion chamber, and the arcing between moving contact 2 and static contact 3 is in extinguishing arc
The indoor rapid arc extinguishing of carry out；Traditional metal grid explosion chamber uses the grid of uniform thickness, and in actual use, electric arc concentrates on leaning on
One end of nearly contact, influences its arc quenching effect；In the present solution, metal grid 5 uses stepped construction, between adjacent grid
Spacing is successively decreased in gradient along the direction far from contact, is conducive in arc extinguishing, the uniformity that electric arc is distributed along grid surface, is improved
Arc extinguishing efficiency, and the service life of breaker can be extended；In improvement project, freezing by change of state is set in the side wall of insulation box 4
Medium 42, since electric arc can be such that the indoor temperature of extinguishing arc sharply increases, freezing by change of state medium 42 is undergone phase transition in heating, is offseted
Refrigeration is played in arc chamber, can play the effect of auxiliary extinction of arc.
Claims (4)
1. a kind of breaker with arc extinguishing effect, including shell, moving contact and static contact, and it is set in the housing the extinguishing arc in portion
Room, it is characterised in that: the explosion chamber includes insulation box and metal grid, and metal grid is installed with to be moved down on moving contact
Dynamic runs through slot, and static contact is located at through the lower section of slot；The edge of the metal grid is connect with insulation box, and metal grid is
Stepped construction, metal grid are greater than proximal end thickness relative to the distal thickness of static contact；The surface of the metal grid is equipped with
Several protrusions, and the protrusion of adjacent metal grid is to be oppositely arranged.
2. a kind of breaker with arc extinguishing effect according to claim 1, it is characterised in that: the side of the insulation box
Wall is ceramic layer, and the ceramic layer is sandwich, is filled with freezing by change of state medium in interlayer.
3. a kind of breaker with arc extinguishing effect according to claim 2, it is characterised in that: the freezing by change of state medium
For low melting point fused salt.
4. a kind of breaker with arc extinguishing effect according to claim 3, it is characterised in that: the side of the metal grid
Portion is embedded in the interlayer of ceramic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137223.2A CN107680852B (en) | 2017-11-16 | 2017-11-16 | A kind of breaker with arc extinguishing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137223.2A CN107680852B (en) | 2017-11-16 | 2017-11-16 | A kind of breaker with arc extinguishing effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107680852A CN107680852A (en) | 2018-02-09 |
| CN107680852B true CN107680852B (en) | 2019-05-03 |
Family
ID=61150273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711137223.2A Active CN107680852B (en) | 2017-11-16 | 2017-11-16 | A kind of breaker with arc extinguishing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107680852B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5686790A (en) * | 1993-06-22 | 1997-11-11 | Candescent Technologies Corporation | Flat panel device with ceramic backplate |
| CN101252053A (en) * | 2008-04-02 | 2008-08-27 | 刘天保 | Electronic electromagnetical type intelligent switch |
| CN201877321U (en) * | 2010-11-29 | 2011-06-22 | 西安交通大学 | Arc extinguishing device for improving on-off performance of low-voltage electric apparatus |
| CN202159641U (en) * | 2011-07-14 | 2012-03-07 | 广东天富电气集团有限公司 | Improved breaker |
| CN205845871U (en) * | 2016-07-25 | 2016-12-28 | 杭州梅兰日兰电器有限公司 | The contact arc-extinguishing system of moulded case circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204289308U (en) * | 2015-01-15 | 2015-04-22 | 乐清市森恒电器有限公司 | A kind of circuit breaker |
| CN104835666A (en) * | 2015-05-25 | 2015-08-12 | 德力西电气有限公司 | Arc extinguish chute, arc extinguish chamber and breaker |
-
2017
- 2017-11-16 CN CN201711137223.2A patent/CN107680852B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5686790A (en) * | 1993-06-22 | 1997-11-11 | Candescent Technologies Corporation | Flat panel device with ceramic backplate |
| CN101252053A (en) * | 2008-04-02 | 2008-08-27 | 刘天保 | Electronic electromagnetical type intelligent switch |
| CN201877321U (en) * | 2010-11-29 | 2011-06-22 | 西安交通大学 | Arc extinguishing device for improving on-off performance of low-voltage electric apparatus |
| CN202159641U (en) * | 2011-07-14 | 2012-03-07 | 广东天富电气集团有限公司 | Improved breaker |
| CN205845871U (en) * | 2016-07-25 | 2016-12-28 | 杭州梅兰日兰电器有限公司 | The contact arc-extinguishing system of moulded case circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107680852A (en) | 2018-02-09 |
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