CN203165831U - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN203165831U CN203165831U CN 201320151132 CN201320151132U CN203165831U CN 203165831 U CN203165831 U CN 203165831U CN 201320151132 CN201320151132 CN 201320151132 CN 201320151132 U CN201320151132 U CN 201320151132U CN 203165831 U CN203165831 U CN 203165831U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- contact
- shell
- lever
- handle
- 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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Links
- 230000003068 static Effects 0.000 abstract description 6
- 230000005520 electrodynamics Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000171 quenching Effects 0.000 description 1
Abstract
The utility model discloses a breaker, which comprises a breaker housing. The two ends of the breaker housing are respectively provided with a wire inlet terminal and a wire outlet terminal. A static contact is arranged and connected on the wire inlet terminal. A trip gear is further arranged on the breaker housing. The trip gear comprises a handle, a lever, a lock catch, a trip buckle, an armature and a magnet yoke. The handle is fixed on the breaker housing in a hinging way. One end of the lever is fixed with the handle while the other end is provided with moving contacts which can contact the static contact. A current conducting plate is connected on the wire outlet terminal. The magnet yoke is arranged on the current conducting plate. There are two moving contacts. The two moving contacts are respectively connected with the current conducting plate through two leads. Such a structure can make the two moving contacts connected in a parallel way. The contacting resistance of the moving contacts and the static contact can be effectively alleviated. The breaker is enabled to bear a greater breaking current. Meanwhile, the double-contact contacting structure makes the electric power stability of the breaker significantly increased.
Description
Technical field
The utility model relates to a kind of circuit breaker.
Background technology
Circuit breaker refers to close and closes, carries and cut-off electric current under the normal loop condition, and can close close, carrying and cut-off the switching device of the electric current under the unusual loop condition (comprising short circuit condition) in official hour.Circuit breaker can be used to distribute electric energy; do not start asynchronous motor continually; power circuit and motor etc. are carried out protection; can automatic shutdown circuit when serious overload or short circuit and fault such as under-voltage take place for their; its function is equivalent to the combination of Fuse switch and mistake underheat relay etc.; and behind the disjunction fault current, generally do not need to change parts, at present, obtained to use widely.But the moving contact that is connected with the fixed contact contact in the existing circuit breaker is single, so just cause the electrodynamic poor stability of circuit breaker, and such structure is arranged so that the contact resistance of dynamic and static contact is also bigger, thereby the breaking current that causes circuit breaker can bear is less.In addition, input terminal and outlet terminal on the existing circuit breaker adopt the outer-hexagonal bolt on Shell of circuit breaker more, because the nut portion size of bolt is bigger, therefore cause the shared space of input terminal and outlet terminal part on the circuit breaker bigger, thereby make Shell of circuit breaker also need adaptability to increase, and then cause production cost to increase.
Summary of the invention
At the deficiencies in the prior art, the utility model provides the bigger circuit breaker of breaking current that a kind of electric power stability is better, can bear.
For achieving the above object, the utility model provides a kind of circuit breaker, comprise Shell of circuit breaker, the two ends of described Shell of circuit breaker are equiped with input terminal and outlet terminal respectively, be connected with fixed contact on the described input terminal, also be provided with trip gear on the Shell of circuit breaker, described trip gear comprises handle, lever, snap close, tripping, armature, yoke, described handle is hinged to be installed on the Shell of circuit breaker, one end and the handle of described lever are fixed, be equiped with the moving contact that can contact with fixed contact on the other end of lever, one end of described tripping is articulated on the lever, the other end of described tripping and snap close interlock, described armature is installed on the snap close, and described armature is positioned at the side near yoke, be connected with conductive plate on the described outlet terminal, described yoke is installed on the conductive plate, and described moving contact is two, and described two moving contacts join by two leads and conductive plate respectively.
The beneficial effects of the utility model are: adopt said structure, because circuit breaker provided by the utility model, the moving contact that is connected with the fixed contact contact in it is two, and described two moving contacts are connected with conductive plate by two leads respectively, thereby make two moving contacts be in the state of being connected in parallel, so not only can reduce the contact resistance of dynamic and static contact effectively, can bear bigger breaking current, and double-contact contact structures also can improve the electrodynamic stability of circuit breaker greatly.
The utility model can further be set to also be provided with in the described Shell of circuit breaker arc control device, and described yoke and moving contact lay respectively at the both sides of arc control device, also extend on the described arc control device and be provided with run-on tab, be equipped with an arc extinguishing spare between each moving contact and the fixed contact, and described two arc extinguishing spare correspondences are arranged at the both sides of described run-on tab outer end.
Adopt said structure, because the utility model is arranged at the both sides of arc control device respectively with described yoke and moving contact, so can increase the space of arc control device effectively, thereby make the arc quenching effect of arc control device better.
The utility model also can further be set to described input terminal and outlet terminal and all adopt hexagon socket head cap screw to be installed on the Shell of circuit breaker.
Adopt said structure, because the utility model adopts hexagon socket head cap screw to fix described input terminal and outlet terminal, therefore can reduce input terminal and the shared space of outlet terminal part greatly, thereby make the overall dimensions of Shell of circuit breaker also obtain reduction, and then reduce production costs effectively.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial structurtes figure of the present utility model.
Embodiment
Provided a kind of circuit breaker as shown in Figure 1, 2, comprise Shell of circuit breaker 1, the two ends of described Shell of circuit breaker 1 are equiped with input terminal 2 and outlet terminal 3 respectively, and described input terminal 2 and outlet terminal 3 all adopt hexagon socket head cap screw 10 to be installed on the Shell of circuit breaker 1.Be connected with fixed contact 4 on the described input terminal 2, also be provided with trip gear 5 on the Shell of circuit breaker 1, described trip gear 5 comprises handle 51, lever 52, snap close 53, tripping 54, armature 55, yoke 56, described handle 51 hinged being installed on the Shell of circuit breaker 1, one end of described lever 52 and handle 51 are fixing, be equiped with the moving contact 6 that can contact with fixed contact 4 on the other end of lever 52, one end of described tripping 54 is articulated on the lever 52, the other end of described tripping 54 and snap close 53 interlocks, described armature 55 is installed on the snap close 53, and described armature 55 is positioned at the side near yoke 56, be connected with conductive plate 7 on the described outlet terminal 3, described yoke 56 is installed on the conductive plate 7, and described moving contact 6 is two, and described two moving contacts 6 join by two leads 8 and conductive plate 7 respectively.Also be provided with arc control device 9 in the described Shell of circuit breaker 1, and described yoke 56 and moving contact 6 lay respectively at the both sides of arc control device 9, also extend on the described arc control device 9 and be provided with run-on tab 91, be equipped with an arc extinguishing spare 92 between each moving contact 6 and the fixed contact 4, and described two arc extinguishing spare 92 correspondences are arranged at the both sides of described run-on tab 91 outer ends.
Because circuit breaker provided by the utility model, the moving contact 6 that is connected with fixed contact 4 contacts in it is two, and described two moving contacts 6 are connected with conductive plate 7 by two leads 8 respectively, thereby make two moving contacts 6 be in the state of being connected in parallel, so not only can reduce the contact resistance of dynamic and static contact effectively, can bear bigger breaking current, and double-contact contact structures also can improve the electrodynamic stability of circuit breaker greatly.
Claims (3)
1. circuit breaker, comprise Shell of circuit breaker, the two ends of described Shell of circuit breaker are equiped with input terminal and outlet terminal respectively, be connected with fixed contact on the described input terminal, also be provided with trip gear on the Shell of circuit breaker, described trip gear comprises handle, lever, snap close, tripping, armature, yoke, described handle is hinged to be installed on the Shell of circuit breaker, one end and the handle of described lever are fixed, be equiped with the moving contact that can contact with fixed contact on the other end of lever, one end of described tripping is articulated on the lever, the other end of described tripping and snap close interlock, described armature is installed on the snap close, and described armature is positioned at the side near yoke, and it is characterized in that: be connected with conductive plate on the described outlet terminal, described yoke is installed on the conductive plate, described moving contact is two, and described two moving contacts join by two leads and conductive plate respectively.
2. a kind of circuit breaker according to claim 1, it is characterized in that: also be provided with arc control device in the described Shell of circuit breaker, and described yoke and moving contact lay respectively at the both sides of arc control device, also extend on the described arc control device and be provided with run-on tab, be equipped with an arc extinguishing spare between each moving contact and the fixed contact, and described two arc extinguishing spare correspondences are arranged at the both sides of described run-on tab outer end.
3. a kind of circuit breaker according to claim 1, it is characterized in that: described input terminal and outlet terminal all adopt hexagon socket head cap screw to be installed on the Shell of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151132 CN203165831U (en) | 2013-03-29 | 2013-03-29 | Breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151132 CN203165831U (en) | 2013-03-29 | 2013-03-29 | Breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165831U true CN203165831U (en) | 2013-08-28 |
Family
ID=49026996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320151132 Active CN203165831U (en) | 2013-03-29 | 2013-03-29 | Breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128879A (en) * | 2016-08-19 | 2016-11-16 | 温州市新蓝天电器有限公司 | A kind of lubricating cup yoke and the chopper of armature one |
| CN110634718A (en) * | 2019-08-22 | 2019-12-31 | 南安市董山尾机械科技有限公司 | Circuit breaker for low-voltage switch cabinet |
-
2013
- 2013-03-29 CN CN 201320151132 patent/CN203165831U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128879A (en) * | 2016-08-19 | 2016-11-16 | 温州市新蓝天电器有限公司 | A kind of lubricating cup yoke and the chopper of armature one |
| CN110634718A (en) * | 2019-08-22 | 2019-12-31 | 南安市董山尾机械科技有限公司 | Circuit breaker for low-voltage switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |