CN203165830U - Integrated static contact bridge of miniature circuit breaker - Google Patents
Integrated static contact bridge of miniature circuit breaker Download PDFInfo
- Publication number
- CN203165830U CN203165830U CN 201220751802 CN201220751802U CN203165830U CN 203165830 U CN203165830 U CN 203165830U CN 201220751802 CN201220751802 CN 201220751802 CN 201220751802 U CN201220751802 U CN 201220751802U CN 203165830 U CN203165830 U CN 203165830U
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- Prior art keywords
- contact bridge
- static contact
- bridge
- contact
- circuit breaker
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Abstract
The utility model relates to an integrated static contact bridge of a miniature circuit breaker. The integrated static contact bridge of the miniature circuit breaker includes a static contact bridge conductive body and a contact, wherein the contact and the static contact bridge conductive body are composited to form the integrated static contact bridge. The contact is arranged at an upper middle part of the static contact bridge conductive body; the contact and the static contact bridge conductive body form an integral structure; and further, the materials of the static contact bridge conductive body and the contact are firmly combined with each other through hot rolling process so as to form the integrated static contact bridge. The integrated static contact bridge of the miniature circuit breaker of the utility model has the following advantages that: the integral structure is adopted to replace a riveting structure of a rivet contact and a static contact bridge, and a welding structure of a flat contact and a static contact bridge in the prior art, and therefore, the poor contact of the contact and the static contact bridge is eliminated, and the same time, the contact and the static contact bridge are characterized by optimal combination strength, large loaded current, small amplitude in temperature rise and long electric service lives, such that the overall performance of the integrated static contact bridge is significantly improved, and is of safety and reliability; and secondary riveting and welding procedures are reduced, a large quantity of manpower and material resources can be saved, and energy saving and consumption reduction can be realized authentically; and economic effect and social benefit are significant.
Description
Technical field:
The utility model belongs to the tactile bridge of low-voltage electrical apparatus field miniature circuit breaker, is specifically related to a kind of one stationary contact bridge of miniature circuit breaker.
Background technology:
Low-voltage circuit breaker is widely used in the industrial and civilian distribution in a large number, and particularly miniature circuit breaker is widely used in the terminal protection of building electric apparatus especially.The trend of miniature circuit breaker development is intensive, high breaking, low noise, safe and reliable and the life-span is long.The stationary contact bridge parts of the middle-size and small-size circuit breaker of existing production are with the contact riveted joint or are welded on formation stationary contact bridge parts on the stationary contact bridge.After the stationary contact bridge parts installation that riveted joint forms, when having temperature rise expanded by heating and cooling to shrink at work, rivet and the tactile bridge riveted holes place of riveted joint are very easily loosening, make circuit breaker produce noise and even loose contact, make the temperature rise aggravation even melting welding occurs, electrical equipment burns inefficacy, causes taking place security incident, the threat to life property safety.Other is that the stationary contact bridge parts of getting are obtained in contact and stationary contact bridge welding, contact solder side and tactile bridge solder side can not be fused fully be one, have the low problem of ratio of brazing area because when welding easily produces slag inclusion, bubble and space at weld interface.Namely percent of the effective contact area after the welding and welding front contact area than little.So just exist the drawback of the potential safety hazard of the big work temperature rise of potential volume resistance, easily melting welding, life-span weak point and poor performance.The stationary contact bridge of miniature circuit breaker is again riveted and welded in existing production is indispensable operation, and manpower and materials have high input, and the energy consumption height makes production cost high.
Therefore miniature circuit breaker to improve overall performance, intensive, parts are integrated and to reduce production costs be to go.
Summary of the invention:
The purpose of this utility model is the not enough and shortcoming that is to overcome in existing production, the technology, provides the stationary contact bridge that a kind of production process is few, production cost is low, overall performance significantly improves parts, a kind of one stationary contact bridge of miniature circuit breaker.
The utility model is achieved by the following technical solution for achieving the above object: a kind of one stationary contact bridge of miniature circuit breaker, it is characterized in that comprising that red copper or brass are the contact of contact material for touching bridge electric conductor and silver or silver alloy, but contact and tactile bridge electric conductor compound be the stationary contact bridge of one.Contact is positioned at the middle and upper part of stationary contact bridge electric conductor, and is structure as a whole with tactile bridge electric conductor.
Furtherly, stationary contact bridge electric conductor and contact material are one with hot rolling processing technology strong bonded, pass through cold finish rolling system again, punching out and obtain one stationary contact bridge.
The beneficial effects of the utility model:
The one stationary contact bridge of a kind of miniature circuit breaker described in the utility model, adopt integral structure to replace: the one, the Welding Structure of the rivet contact in the existing production Technology and riveted structure, plain film contact and the stationary contact bridge of stationary contact bridge, make the problem that does not have contact and being connected of stationary contact bridge loose contact, contact and stationary contact bridge have best bond strength simultaneously.One stationary contact bridge is after installation, and loaded current is big in the work, temperature rise is low, electric life is long, overall performance is significantly improved and safe and reliable.The 2nd, reduced riveted joint and welding sequence, saved a large amount of energy and human and material resources, played energy-saving and cost-reducing effect really, production cost significantly descends, and makes economic effect and social benefit obvious.
Description of drawings:
Fig. 1 is the integrative-structure figure of the one stationary contact bridge of a kind of miniature circuit breaker of the utility model.
Embodiment:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments: as Fig. 1, shown in the utility model middle and upper part of providing a kind of one stationary contact bridge of miniature circuit breaker to comprise to touch bridge electric conductor 1 and contact 2, contact 2 to be positioned to touch bridge electric conductor 1 and be structure as a whole with tactile bridge electric conductor 1.The material of wherein touching bridge electric conductor 1 is red copper or brass, and the material of contact 2 is the high silver of conductance or silver alloy.
Preferred tactile bridge electric conductor 1 and contact 2 connect as one structure in the mode of hot rolling; during concrete the manufacturing; can set the position groove in red copper or brass base surface; lay at positioning groove and to inlay silver bar or silver alloy bar, the mode with hot rolling is rolled into one with two kinds of materials continuously in hydrogen or argon shield are arranged.Obtaining the high contact of combined strength bination and stationary contact bridge is the stationary contact abutment material of one; then under argon shield, the diffusion annealing of stationary contact abutment material is eliminated stress; cold essence is rolled down to needed size again; punch forming once on compund die namely obtains the one stationary contact bridge (as Fig. 1) of miniature circuit breaker.
The utility model is not limited to above-mentioned embodiment; persons skilled in the art are according to the disclosed content of the utility model; can adopt other multiple embodiment to implement the utility model, therefore every employing project organization of the present utility model and thinking are done some simple designs that change or change and are all fallen into the utility model protection range.
Claims (2)
1. the one stationary contact bridge of a miniature circuit breaker, it is characterized in that: comprise stationary contact bridge electric conductor and contact, contact is positioned at the middle and upper part of stationary contact bridge electric conductor, and contact and stationary contact bridge electric conductor are structure as a whole.
2. the one stationary contact bridge of a kind of miniature circuit breaker according to claim 1 is characterized in that: stationary contact bridge electric conductor and contact form one stationary contact bridge with firm being combined as a whole of hot rolling processing technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220751802 CN203165830U (en) | 2012-12-25 | 2012-12-25 | Integrated static contact bridge of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220751802 CN203165830U (en) | 2012-12-25 | 2012-12-25 | Integrated static contact bridge of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165830U true CN203165830U (en) | 2013-08-28 |
Family
ID=49026995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220751802 Expired - Fee Related CN203165830U (en) | 2012-12-25 | 2012-12-25 | Integrated static contact bridge of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165830U (en) |
-
2012
- 2012-12-25 CN CN 201220751802 patent/CN203165830U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20131225 |