CN104766770B - The stationary contact bracket and its breaker of breaker - Google Patents
The stationary contact bracket and its breaker of breaker Download PDFInfo
- Publication number
- CN104766770B CN104766770B CN201410006862.5A CN201410006862A CN104766770B CN 104766770 B CN104766770 B CN 104766770B CN 201410006862 A CN201410006862 A CN 201410006862A CN 104766770 B CN104766770 B CN 104766770B
- Authority
- CN
- China
- Prior art keywords
- breaker
- base layer
- layer
- stationary contact
- contact
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/025—Composite material having copper as the basic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
Abstract
The stationary contact bracket of breaker（12）, including a base layer（122）With a strengthening layer（124）.Base layer is prepared from by the material with good conductive and heat conductivility.Strengthening layer is superimposed on base layer, and it is prepared from by the material with good mechanical strength and magnetic property.Base layer has good conduction and heat conductivility, on the one hand can produce seldom heat；Another aspect base layer can make stationary contact bracket cool for electric arc, and electric arc is extinguished in help.On the one hand strengthening layer can strengthen the mechanical strength of base layer；Another aspect magnetic conduction strengthening layer can enter the arc-extinguishing mechanism of breaker with pilot arc, so as to realize the quick extinguishing of electric arc.Meanwhile, the base layer and strengthening layer being superimposed together can be easily assembled in breaker.
Description
Technical field
The present invention relates to a kind of stationary contact bracket, more particularly to a kind of stationary contact bracket for miniature circuit breaker.
Background technology
In miniature circuit breaker, by being contacting and separating for moving contact and static contact, can connect, carry and disjunction circuit just
Electric current under normal condition of work.Meanwhile, miniature circuit breaker can also be in defined situation, the improper work such as overload, open circuit
Make condition, carrying and the improper electric current of disjunction within the regular hour.
Static contact is installed on stationary contact bracket.When moving contact is separated with static contact, stationary contact bracket assume responsibility for very big
Electric current, while needing to guide the electric arc produced between dynamic and static contact into the arc quenching system set in breaker into.Existing static contact
Support is made up of steel copper facing, or fine copper.The copper-plated static contact mounting bracket of steel has fine mechanical strength, but resistivity
Height, caloric value is big during carrying electric current.The static contact mounting bracket resistivity of fine copper is small, but mechanical strength is low, and permeability very little,
The electric arc produced between dynamic and static contact can not be extinguished.
The content of the invention
It is an object of the invention to provide a kind of stationary contact bracket of breaker, its can help to extinguish in breaker moving contact with
The electric arc produced between static contact.
It is a further object to provide the breaker using the stationary contact bracket.
The invention provides a kind of stationary contact bracket of breaker, including a base layer and a strengthening layer.Base layer
The electric current passed through for transmitting in breaker.Strengthening layer is superimposed on base layer, and it can provide structural support, and reinforcing for base layer
Layer can attract the electric arc that is produced in breaker between moving contact and static contact to enter the arc-extinguishing mechanism of breaker.
In the stationary contact bracket of breaker, on the one hand conductive base layer can cause electric current to be flowed in stationary contact bracket
When dynamic, seldom heat is produced；The good heat conductivility of another aspect base layer can make stationary contact bracket cool for electric arc, side
Help extinguishing electric arc.Strengthening layer has good mechanical strength and magnetic property, on the one hand can strengthen the mechanical strength of base layer；
Another aspect magnetic conduction strengthening layer can enter the arc-extinguishing mechanism of breaker with pilot arc, so as to realize the quick extinguishing of electric arc.Together
When, the base layer and strengthening layer being superimposed together can be easily assembled in breaker.
In another schematical embodiment of the stationary contact bracket of breaker, base layer is prepared by metallic copper.
In another schematical embodiment of the stationary contact bracket of breaker, strengthening layer is prepared by steel.
In another schematical embodiment of the stationary contact bracket of breaker, strengthening layer and base layer pass through double gold
Category combination process is superimposed together.
In another schematical embodiment of the stationary contact bracket of breaker, the thickness of base layer and strengthening layer
Thickness ratio is 1~2.5：1.
Present invention also offers a kind of breaker, including a moving contact component and a static contact component.Moving contact group
Part includes a moving contact rack and a moving contact for being arranged at moving contact rack.Static contact component includes an above-mentioned stationary contact
Head bracket and one are arranged at stationary contact bracket and the static contact that can be contacted with moving contact.
In another schematical embodiment of breaker, close moving contact component side is base in stationary contact bracket
Body layer, and be strengthening layer away from moving contact component side.
In another schematical embodiment of breaker, static contact is connected to base layer.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is used for a kind of structural representation of exemplary embodiment of stationary contact bracket for illustrating breaker.
Label declaration
10 static contact components
12 stationary contact brackets
122 base layers
124 strengthening layers
14 static contacts
20 moving contact components
22 moving contact racks
24 moving contacts.
Embodiment
In order to be more clearly understood to the technical characteristic of invention, purpose and effect, now control brief description of the drawings is of the invention
Embodiment, in the various figures identical label represent identical part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.
To make only to schematically show part related to the present invention in simplified form, each figure, their not generations
Table its as product practical structures.In addition, so that simplified form is readily appreciated, there is identical structure or function in some figures
Part, only symbolically depict one of those, or only marked one of those.
Herein, " one " not only represents " only this ", can also represent the situation of " more than one ".
Herein, " on ", " under ", "front", "rear", "left", "right" etc. are only used for representing the position between relevant portion
Relation, and they non-limiting absolute position.
Fig. 1 is used for a kind of structural representation of exemplary embodiment of stationary contact bracket for illustrating breaker.As illustrated,
Breaker includes a static contact component 10 and a moving contact component 20.
Wherein, static contact component 10 includes a stationary contact bracket 12 and a static contact 14.Static contact 14 is mountable to
Stationary contact bracket 12.
Stationary contact bracket 12 includes a base layer 122 and a strengthening layer 124, and strengthening layer 124 is superimposed on base layer
122.Base layer 122 is prepared from by the material with good heat conductive and electric conductivity, for example metallic copper, and strengthening layer 124 is by having
The material for having good mechanical strength and magnetic property is prepared from, for example steel.In stationary contact bracket one kind signal of breaker
In property embodiment, strengthening layer 124 is superimposed on base layer 122 by double-metal composite technique.
Moving contact component 20 includes a moving contact rack 22 and a moving contact 24, and moving contact 24 is mountable to dynamic touch
Head bracket 22.
In a kind of exemplary embodiment of stationary contact bracket of breaker, in stationary contact bracket 12, close to moving contact group
The side of part 20 is base layer 122, and the side away from moving contact component 20 is strengthening layer 124.What is contacted with moving contact 24 is quiet
Contact 14 is connected to base layer 122.In this layout type, the conduction and thermally conductive pathways of static contact and base layer composition are most short,
Strengthening layer can provide mechanical support for base layer simultaneously, and attract the electric arc between moving contact and static contact to enter arc extinguishing machine
Structure.
In the stationary contact bracket of breaker, base layer has good conduction and heat conductivility, on the one hand can cause electricity
When stream flows in stationary contact bracket, seldom heat is produced；The good heat conductivility of another aspect base layer can make stationary contact
Head bracket cools for electric arc, and electric arc is extinguished in help.Strengthening layer has good mechanical strength and magnetic property, on the one hand can be strong
Change the mechanical strength of base layer；Another aspect magnetic conduction strengthening layer can enter the arc-extinguishing mechanism of breaker with pilot arc, so that real
The quick extinguishing of existing electric arc.Meanwhile, the base layer and strengthening layer being superimposed together easily can be assembled into breaker.
, can be by adjusting base layer and strengthening layer in a kind of exemplary embodiment of stationary contact bracket of breaker
Thickness proportion relation, heat conductivility, electric conductivity, mechanical strength and the magnetic property of corresponding regulation stationary contact bracket.Work as base
When body layer has larger thickness, stationary contact bracket has preferable heat conductivility and an electric conductivity, and when strengthening layer have it is larger
During thickness, stationary contact bracket has preferable mechanical strength and magnetic property.The thickness ratio of such as base layer and strengthening layer is
2.5：1, or 1：1.
It should be understood that, although this specification is described according to each embodiment, but not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say
Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with
The other embodiment of understanding.
The a series of detailed description of those listed above illustrating only for the possible embodiments of the present invention,
They simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change
More, such as feature combination, segmentation or repetition, should be included in the scope of the protection.
Claims (2)
1. breaker, including：
One moving contact component (20), including：
One moving contact rack (22), and
One be arranged at the moving contact rack (22) moving contact (24)；And
One static contact component (10), including：
One stationary contact bracket (12), the stationary contact bracket (12) includes：
One is used to transmit in the breaker by electric current, the base layer (122) that is prepared by metallic copper；With
One strengthening layer (124) that described matrix layer (122) is superimposed on by double-metal composite technique, being prepared by steel,
One covers in described matrix layer (122) and the static contact (14) that can be contacted with the moving contact (24),
The strengthening layer (124) can provide structural support for described matrix layer (122), and the strengthening layer (124) can attract institute
State the arc-extinguishing mechanism that the electric arc produced between moving contact (24) and the static contact (14) enters the breaker.
2. the thickness ratio of thickness and the strengthening layer of breaker as claimed in claim 1, wherein described matrix layer for 1~
2.5：1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006862.5A CN104766770B (en) | 2014-01-07 | 2014-01-07 | The stationary contact bracket and its breaker of breaker |
| EP14197126.7A EP2905794B1 (en) | 2014-01-07 | 2014-12-10 | Static contact support for circuit breaker and circuit breaker thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006862.5A CN104766770B (en) | 2014-01-07 | 2014-01-07 | The stationary contact bracket and its breaker of breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104766770A CN104766770A (en) | 2015-07-08 |
| CN104766770B true CN104766770B (en) | 2017-09-08 |
Family
ID=52013957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410006862.5A Active CN104766770B (en) | 2014-01-07 | 2014-01-07 | The stationary contact bracket and its breaker of breaker |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2905794B1 (en) |
| CN (1) | CN104766770B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783428A (en) * | 2016-10-13 | 2017-05-31 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of combined repulsion dish for electromagnetic repulsion mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188237Y (en) * | 1993-12-09 | 1995-01-25 | 中南工学院 | Knife switch with strengthened elastic contact conductor element |
| CN201622989U (en) * | 2009-11-26 | 2010-11-03 | 无锡唯特电气技术有限公司 | Miniature circuit breaker with high breaking capacity |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1164164A (en) * | 1915-03-01 | 1915-12-14 | William Borer | Wrench. |
| US2788421A (en) * | 1953-05-12 | 1957-04-09 | Westinghouse Electric Corp | Circuit breaker contact structure |
| DE1175776B (en) | 1962-01-31 | 1964-08-13 | Siemens Ag | Contact bridge for electrical switchgear |
| AT251684B (en) * | 1963-09-11 | 1967-01-10 | Licentia Gmbh | Electrical contact piece |
| DE3142883A1 (en) | 1981-10-29 | 1983-05-11 | Schiele Kg, 7746 Hornberg | Electrical switch contact |
| ATE21298T1 (en) | 1981-11-21 | 1986-08-15 | Sprecher & Schuh Ag | CONTACT PIECE FOR AN ELECTRICAL SWITCHING DEVICE, ESPECIALLY FOR A CONTACTOR. |
| DE19830232A1 (en) | 1998-07-07 | 2000-01-13 | Abb Research Ltd | Current contact arrangements of a current switch |
| DE10019121A1 (en) | 2000-04-18 | 2001-10-25 | Moeller Gmbh | Contact for electrical switch, has carrier region fabricated from one material with contacts of another material, and is produced by sintering process. |
| ITBG20050020A1 (en) * | 2005-05-11 | 2006-11-12 | Abb Service Srl | MULTI-COMPONENT ELECTRIC CONTACT |
| CN2924772Y (en) * | 2005-12-05 | 2007-07-18 | 北京Abb低压电器有限公司 | Static contact base, arc-quenching system for miniature circuit breaker and miniature circuit breaker |
| ITMI20090011A1 (en) * | 2009-01-08 | 2010-07-09 | Abb Spa | MOBILE CREW FOR A LOW VOLTAGE INTERRUPT DEVICE AND INTERRUPTIVE DEVICE INCLUDING SUCH MOBILE CREW. |
| JP5705738B2 (en) * | 2010-02-12 | 2015-04-22 | 古河電気工業株式会社 | Silver-coated composite material for movable contact parts, manufacturing method thereof, and movable contact parts |
| CN201673850U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Load switch main-loop movable, static contact device |
| CN202473620U (en) * | 2012-03-12 | 2012-10-03 | 毕新华 | Copper and steel integrated static contact |
| CN202585291U (en) * | 2012-05-16 | 2012-12-05 | 上海良信电器股份有限公司 | Integrated thermomagnetic system supporting frame of small-size circuit breaker |
-
2014
- 2014-01-07 CN CN201410006862.5A patent/CN104766770B/en active Active
- 2014-12-10 EP EP14197126.7A patent/EP2905794B1/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188237Y (en) * | 1993-12-09 | 1995-01-25 | 中南工学院 | Knife switch with strengthened elastic contact conductor element |
| CN201622989U (en) * | 2009-11-26 | 2010-11-03 | 无锡唯特电气技术有限公司 | Miniature circuit breaker with high breaking capacity |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2905794B1 (en) | 2018-04-25 |
| CN104766770A (en) | 2015-07-08 |
| EP2905794A1 (en) | 2015-08-12 |
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