CN204809158U - Bridge type double break point DC electromagnetic contactor - Google Patents
Bridge type double break point DC electromagnetic contactor Download PDFInfo
- Publication number
- CN204809158U CN204809158U CN201520407401.9U CN201520407401U CN204809158U CN 204809158 U CN204809158 U CN 204809158U CN 201520407401 U CN201520407401 U CN 201520407401U CN 204809158 U CN204809158 U CN 204809158U
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- CN
- China
- Prior art keywords
- magnetic circuit
- contact component
- type double
- subassembly
- electromagnetic contactor
- 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 discloses a bridge type double break point DC electromagnetic contactor, include the magnetic circuit subassembly and set up the excess voltage suppressor on the magnetic circuit subassembly, be provided with the base on the magnetic circuit subassembly, the correspondence of both sides position is provided with two permanent magnet steels in the base, every permanent magnet steel top is provided with static contact component, be provided with armature in the upper portion cavity of magnetic circuit subassembly, armature is connected with the moving contact subassembly through linkage unit, the moving contact subassembly is located two static contact component's top, be provided with reaction spring in the linkage unit, be provided with the contact spring in the moving contact subassembly, linkage unit's both sides are provided with electric snap action switch respectively, static contact component is connected with the arc extinguishing subassembly. The utility model discloses a bridge type double break point DC electromagnetic contactor adopts bridge type double break dot structure, has that clearance between open contacts is little, a compact structure, advantage that the relative volume is little, owing to do not use the flexible coupling, and the contact material of contact adopts stand wear and tear silver -colored cadmium oxide, so be favorable to improving its mechanical durability.
Description
Technical field
The utility model belongs to DC. current electromagnetic contactor technical field, is specifically related to a kind of bridge-type double breaking points DC. current electromagnetic contactor.
Background technology
At present, D.C. contactor on market is based on Petersen coil arc extinguishing, the contactor of this structure, very easily by electrical network voltage influence, can produce the insecure problem of arc extinguishing, the phenomenon cause contact burning in arc-extinguish chamber and arc extinguishing grid pieces fragmentation procedure, burning out when line voltage reduces a lot.And this type of contactor on market uses single-break formula DC. current electromagnetic contactor usually, single-break contact often uses copper or copper-based alloy material manufacture, and resistance is comparatively large, and resistance fusion welding can be bad, often causes contact adhesion phenomenon; Simultaneously single-break contact is opened apart from large, and impact energy is large, need be external by being flexible coupling, so that is restricted mechanical endurance, and when breaking current, the arcing time is long, and contact has to slide and rolls motion, and mechanical wear is larger.
Utility model content
The purpose of this utility model is to provide a kind of bridge-type double breaking points DC. current electromagnetic contactor, solves the problem that clearance between open contacts is large, impact energy large and wearing and tearing are larger that existing single-break D.C. contactor exists.
The technical scheme that the utility model adopts is: a kind of bridge-type double breaking points DC. current electromagnetic contactor, the excess voltage suppressor comprising magnetic circuit assembly and be arranged on magnetic circuit assembly, magnetic circuit assembly is provided with pedestal, in pedestal, two side position correspondences are provided with two permanent-magnet steels, static contact component is provided with above each permanent-magnet steel, armature is provided with in the upper chamber of magnetic circuit assembly, armature is connected with moving contact component by linkage unit, moving contact component is positioned at the top of two static contact components, reaction spring is provided with in linkage unit, touch spring is provided with in moving contact component, the both sides of linkage unit are respectively arranged with quick-action switch, static contact component is connected with arc extinguishing assembly.
Feature of the present utility model is also,
Edge, pedestal upper surface is also connected with case, and two quick-action switches are positioned on the outer upper ends face of case.
The contact material of static contact component and moving contact component is Ag-CdO.
The beneficial effects of the utility model are: a kind of bridge-type double breaking points DC. current electromagnetic contactor of the present utility model solves the problem that clearance between open contacts is large, impact energy large and wearing and tearing are larger that existing single-break D.C. contactor exists.A kind of bridge-type double breaking points DC. current electromagnetic contactor of the present utility model adopts bridge-type double-breakpoint structure, there is the advantage that clearance between open contacts is little, compact conformation, relative volume are little, be flexible coupling owing to not using, and the contact material of contact adopts anti abrasive Agcdo, therefore be conducive to improving its mechanical endurance.
Accompanying drawing explanation
Fig. 1 is the structure cutaway view of a kind of bridge-type double breaking points DC. current electromagnetic contactor of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the perspective view of a kind of bridge-type double breaking points DC. current electromagnetic contactor of the present utility model.
In figure, 1. excess voltage suppressor, 2. arc extinguishing assembly, 3. moving contact component, 4. quick-action switch, 5. touch spring, 6. case, 7. static contact component, 8. permanent-magnet steel, 9. pedestal, 10. reaction spring, 11. armature, 12. magnetic circuit assemblies.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The structure of a kind of bridge-type double breaking points DC. current electromagnetic contactor that the utility model provides as shown in Figure 1-Figure 3, comprise magnetic circuit assembly 12 and be arranged at the excess voltage suppressor 1 on magnetic circuit assembly 12, magnetic circuit assembly 12 is provided with pedestal 9, in pedestal 9, two side position correspondences are provided with two permanent-magnet steels 8, static contact component 7 is provided with above each permanent-magnet steel 8, armature 11 is provided with in the upper chamber of magnetic circuit assembly 12, armature 11 is connected with moving contact component 3 by linkage unit, moving contact component 3 is positioned at the top of two static contact components 7, reaction spring 10 is provided with in linkage unit, touch spring 5 is provided with in moving contact component 3, the both sides of linkage unit are respectively arranged with quick-action switch 4, static contact component 7 is connected with arc extinguishing assembly 2.
Edge, pedestal 9 upper surface is also connected with case 6, and two quick-action switches 4 are positioned on the outer upper ends face of case 6.
The contact material of static contact component 5 and moving contact component 9 is Ag-CdO (i.e. Agcdo).
A kind of bridge-type double breaking points DC. current electromagnetic contactor of the present utility model adopts single contactor coil to design and adopts voltage suppressor 1, makes its energy action message in whole ambient temperature range; When contactor control end is by a connection signal, contactor magnetic circuit assembly 12 produces suction, attract armature 11 action, drive linkage unit motion that moving contact component 3 is contacted respectively with two static contact components 7, thus make main noddle on contactor from often open become normally closed, meanwhile, auxiliary contact is often opened and is become normally closed, and normally closed becoming often opens; When contactor is by after a cut-off signal, contactor armature 11 and linkage unit act on fast return due to reaction spring 10 and touch spring 5, and contactor is often left from normally closed becoming, and auxiliary contact is often opened by normally closed being converted to simultaneously, often open be converted to normally closed.Linkage unit can touch the quick-action switch 4 being drawn to the setting of its both sides, top and move when being driven move up and down by armature 11, thus controls the folding of quick-action switch 4.
The utility model main noddle on contactor is single-grade bridge type double-breakpoint structure, and main contact is made up of two static contact components and a moving contact component, and clearance between open contacts is little, compact conformation, contacts reliable and stable.Main contact material adopts resistance fusion welding can better silver cadmium oxide contact, improves resistance fusion welding energy and the electric life of product.During action, moving contact component directly drives linkage unit action, does not use and is flexible coupling, therefore is conducive to the mechanical endurance of improving contactor.Arc extinguishing part adopts permanent-magnet steel to carry out magnetic blow-out, does not use Petersen coil arc extinguishing, not by the impact of voltage ripple of power network, adopts multiple-grid sheet arc quenching method to carry out arc extinguishing, can disjunction rapidly, elongation, cooling electric arc, can disjunction DC750V, 80A DC load.
Claims (3)
1. a bridge-type double breaking points DC. current electromagnetic contactor, it is characterized in that, comprise magnetic circuit assembly (12) and be arranged at the excess voltage suppressor (1) on magnetic circuit assembly (12), described magnetic circuit assembly (12) is provided with pedestal (9), in described pedestal (9), two side position correspondences are provided with two permanent-magnet steels (8), described each permanent-magnet steel (8) top is provided with static contact component (7), armature (11) is provided with in the upper chamber of described magnetic circuit assembly (12), armature (11) is connected with moving contact component (3) by linkage unit, described moving contact component (3) is positioned at the top of two static contact components (7), reaction spring (10) is provided with in described linkage unit, touch spring (5) is provided with in described moving contact component (3), the both sides of described linkage unit are respectively arranged with quick-action switch (4), described static contact component (7) is connected with arc extinguishing assembly (2).
2. a kind of bridge-type double breaking points DC. current electromagnetic contactor as claimed in claim 1, it is characterized in that, described pedestal (9) edge, upper surface is also connected with case (6), and described two quick-action switches (4) are positioned on the outer upper ends face of case (6).
3. a kind of bridge-type double breaking points DC. current electromagnetic contactor as claimed in claim 1, is characterized in that, the contact material of described static contact component (7) and moving contact component (7) is Ag-CdO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407401.9U CN204809158U (en) | 2015-06-12 | 2015-06-12 | Bridge type double break point DC electromagnetic contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407401.9U CN204809158U (en) | 2015-06-12 | 2015-06-12 | Bridge type double break point DC electromagnetic contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809158U true CN204809158U (en) | 2015-11-25 |
Family
ID=54593937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407401.9U Expired - Fee Related CN204809158U (en) | 2015-06-12 | 2015-06-12 | Bridge type double break point DC electromagnetic contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204809158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091524A (en) * | 2017-12-12 | 2018-05-29 | 北京中车赛德铁道电气科技有限公司 | A kind of transmission connecting structure for heavy DC contactor |
| CN109192622A (en) * | 2017-11-06 | 2019-01-11 | 海拉（厦门）汽车电子有限公司 | The Direct Action Type relay of double-bridge structure |
| CN112883613A (en) * | 2021-02-08 | 2021-06-01 | 哈尔滨工业大学 | Lower limit design method for impact energy of moving contact of direct-acting electromagnetic contactor |
-
2015
- 2015-06-12 CN CN201520407401.9U patent/CN204809158U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192622A (en) * | 2017-11-06 | 2019-01-11 | 海拉（厦门）汽车电子有限公司 | The Direct Action Type relay of double-bridge structure |
| CN109192622B (en) * | 2017-11-06 | 2022-07-22 | 厦门宏发交通电器有限公司 | Direct-acting relay with double-bridge structure |
| CN108091524A (en) * | 2017-12-12 | 2018-05-29 | 北京中车赛德铁道电气科技有限公司 | A kind of transmission connecting structure for heavy DC contactor |
| CN112883613A (en) * | 2021-02-08 | 2021-06-01 | 哈尔滨工业大学 | Lower limit design method for impact energy of moving contact of direct-acting electromagnetic contactor |
| CN112883613B (en) * | 2021-02-08 | 2022-09-02 | 哈尔滨工业大学 | Lower limit design method for impact energy of moving contact of direct-acting electromagnetic contactor |
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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: 20151125 Termination date: 20190612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |