CN204155889U - A kind of run-on tab mounting structure of circuit breaker - Google Patents
A kind of run-on tab mounting structure of circuit breaker Download PDFInfo
- Publication number
- CN204155889U CN204155889U CN201420683686.4U CN201420683686U CN204155889U CN 204155889 U CN204155889 U CN 204155889U CN 201420683686 U CN201420683686 U CN 201420683686U CN 204155889 U CN204155889 U CN 204155889U
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- run
- tab
- fixed contact
- circuit breaker
- mounting structure
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Abstract
The utility model discloses a kind of run-on tab mounting structure of circuit breaker, comprise by the integrated run-on tab of ferromagnetic material and the fixed contact that fixes with described run-on tab; Described run-on tab is positioned at the end of described fixed contact, comprises the magnetic induction portion being close to stationary contact subordinate side, connect magnetic induction portion upwards bend and be close to the kink of fixed contact end, and connecting bending folding part and to arc-extinguishing chamber of circuit breaker side extend striking portion.The utility model structure is simple, and parts are few, run-on tab of the prior art and magnetic core changed into and are wholely set, and realize striking effect simultaneously and strengthen the effect of the electromagnetic field around contact, thus install more simple and easy, structure is more stable.
Description
Technical field
The utility model relates to a kind of run-on tab mounting structure of circuit breaker, belongs to breaker technical field.
Background technology
Breaker of plastic casing can produce electric arc by during short circuit current disjunction, for preventing the high temperature ablation contact of electric arc, existing circuit breaker all can increase run-on tab on contact, simultaneously in order to increase the magnetic blow-out of arc control device, making electric arc more easily enter arc control device, around contact, also can increase magnetic core, run-on tab and magnetic core use ferromagnetic material usually, and contact normally copper product, both adopt the mode of welding not easily to weld, so usually adopt increase rivet to rivet fixing.Be illustrated in figure 1 run-on tab and fixed contact in prior art and assemble schematic diagram, fixed contact 1 has the structure being bent into U-shaped, run-on tab 2 is arranged on the upside of fixed contact 1 end, magnetic core 3 is arranged on the downside of fixed contact 1 end, run-on tab 2, fixed contact 1 and magnetic core 3 is riveted together by rivet 4.This structure is comparatively complicated, and parts are more, and riveted by rivet 4 after run-on tab 2, fixed contact 1 and magnetic core 3 need being located during assembling, step is comparatively loaded down with trivial details again, and mounting structure is firm not, easily loosens between parts.
Utility model content
The technical problems to be solved in the utility model is to overcome defect of the prior art, and provide a kind of structure simply firm, parts are few, the run-on tab mounting structure of circuit breaker easy for installation.
To achieve these goals, the run-on tab mounting structure of a kind of circuit breaker of the present utility model, comprises by the integrated run-on tab of ferromagnetic material and the fixed contact that fixes with described run-on tab; Described run-on tab is positioned at the end of described fixed contact, comprises the magnetic induction portion being close to stationary contact subordinate side, connect magnetic induction portion upwards bend and be close to the kink of fixed contact end, and connecting bending folding part and to arc-extinguishing chamber of circuit breaker side extend striking portion.
The end in described magnetic induction portion is provided with the riveted joint hook portion upwards bent, correspondingly with described riveted joint hook portion on described fixed contact be provided with riveted holes, described run-on tab and described fixed contact by described riveted joint hook portion and described riveted holes mutually rivet coordinate after be fixedly connected with.
Described fixed contact is provided with the fixed part of U-bend folding away from the side of described run-on tab, for being fixed on the pedestal of circuit breaker; The position of described fixed position below described magnetic induction portion offers fenestra, described pedestal is provided with lug boss withstands described magnetic induction portion lower surface through described fenestra.
Described fixed contact is provided with fixed contact cover.
Described fixed contact cover is plastic jacket.
Adopt technique scheme, the run-on tab mounting structure of circuit breaker of the present utility model, compared with prior art, has following beneficial effect:
1. the utility model structure is simple, and parts are few, run-on tab of the prior art and magnetic core changed into and are wholely set, and realize striking effect simultaneously and strengthen the effect of the electromagnetic field around contact, thus install more simple and easy, structure is more stable.
2. in the utility model run-on tab and fixed contact by rivet hook portion and riveted holes mutually rivet coordinate after be fixedly connected with, without the need to arranging rivet in addition, save manufacturing cost, and be convenient to install, rivet hook portion and kink to form fixed contact and clamp, enhancing structural stability simultaneously.
3. the utility model is by arranging fixed contact cover, is stuck on fixed contact, and protection fixed contact, not by electrical arc erosion, can produce the gas contributing to arc extinguishing simultaneously, accelerates the extinguishing of electric arc.
4. in the utility model, pedestal is provided with lug boss withstands described magnetic induction portion lower surface through described fenestra, the stability of whole mounting structure can be strengthened further.
Accompanying drawing explanation
Fig. 1 is run-on tab mounting structure schematic diagram in this prior art.
Fig. 2 is run-on tab mounting structure schematic diagram in the utility model.
Fig. 3 is the structural representation of circuit breaker in the utility model.
Fig. 4 is the structural representation of run-on tab in the utility model.
Fig. 5 is the structural representation of fixed contact in the utility model.
In figure, Reference numeral is expressed as:
1-fixed contact; 2-run-on tab; 3-magnetic core; 4-rivet; 5-arc control device; 6-pedestal; 7-fixed contact cover;
8-moving contact; 101-contact; 102-riveted holes; 103-fixed part; 104-fenestra; 201-magnetic induction portion;
202-kink; 203-striking portion; 204-rivets hook portion; 601-lug boss.
Embodiment
Below by way of the drawings and specific embodiments, the utility model is described in further detail.
The present embodiment provides a kind of run-on tab mounting structure of circuit breaker, as shown in figs. 2 to 4, comprises by the integrated run-on tab of ferromagnetic material 2 and the fixed contact 1 that fixes with described run-on tab 2.
Described run-on tab 2 is Z-shaped structure, is arranged at the end of described fixed contact 1.This run-on tab 2 comprises and being horizontally disposed with and the magnetic induction portion 201 be close on the downside of fixed contact 1 end, connect magnetic induction portion 201 upwards bend and be close to the kink 202 of fixed contact 1 end, and connecting bending folding part 202 and to arc-extinguishing chamber of circuit breaker 5 side extend striking portion 203.
Run-on tab structure of the present utility model is processed as one run-on tab of the prior art and magnetic core, contact 101 can be left by effective pilot arc by striking portion 203, and magnetic induction portion 201 can make electric arc more easily enter arc control device 5 in the magnetic field effectively strengthened around contact, improve arc extinguishing ability.
The riveted joint hook portion 204 upwards bent is provided with in the end in described magnetic induction portion 201, correspondingly with described riveted joint hook portion 204 on described fixed contact 1 be provided with riveted holes 102, described run-on tab 2 and described fixed contact 1 by described riveted joint hook portion 204 and described riveted holes 102 mutually rivet coordinate after be fixedly connected with.
Because run-on tab 2 is wholely set for Z-shaped, by riveted joint hook portion 204 stretch into riveted holes 102 can directly and fixed contact 1 assemble, eliminate rivet of the prior art, while designs simplification, also save product cost.
Described fixed contact 1 is provided with the fixed part 103 of U-bend folding away from the side of described run-on tab 2, for being fixed on the pedestal 6 of circuit breaker; The position that described fixed part 103 is positioned at below described magnetic induction portion 201 offers fenestra 104, described pedestal 6 is provided with lug boss 601 withstands described magnetic induction portion 201 lower surface through described fenestra 104.Block fenestra 104 by lug boss 601, withstand magnetic induction portion 201 by lug boss 601 simultaneously, effectively can increase the resistance to overturning of mounting structure, the height of fixed contact 1 on pedestal 6 can be limited simultaneously.
Described fixed contact 1 is provided with fixed contact cover 7, and this fixed contact cover 7 is plastic jacket, is stuck on fixed contact 1, and protection fixed contact 1, not by electrical arc erosion, can produce the gas contributing to arc extinguishing simultaneously, accelerates the extinguishing of electric arc.
When moving contact 8 and fixed contact 1 separate, can be situated between generation electric arc, and the grid meeting subdividing the arc in arc control device 5, run-on tab 2 can guide the arc erosion run-on tab 2 on contact 101, and protection contact, extends the life-span of circuit breaker.When have in fixed contact 1 electric current by time, in magnetic induction portion 201 induced current produce magnetic flux and fixed contact 1 electric current produce magnetic flux superposition, enhance the magnetic field around contact, make electric arc more easily be brought into arc control device 5 by electromagnetic attraction, enhance arc quenching effect.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (5)
1. a run-on tab mounting structure for circuit breaker, is characterized in that: comprise by the integrated run-on tab of ferromagnetic material (2) and the fixed contact (1) that fixes with described run-on tab (2); Described run-on tab (2) is positioned at the end of described fixed contact (1), comprise the magnetic induction portion (201) be close on the downside of fixed contact (1) end, connect magnetic induction portion (201) upwards bend and be close to the kink (202) of fixed contact end, and connect described kink (202) and the striking portion (203) extended to arc-extinguishing chamber of circuit breaker (5) side.
2. the run-on tab mounting structure of circuit breaker as claimed in claim 1, it is characterized in that: the end of described magnetic induction portion (201) is provided with the riveted joint hook portion (204) upwards bent, correspondingly with described riveted joint hook portion (204) be provided with riveted holes (102) described fixed contact (1) is upper, described run-on tab (2) and described fixed contact (1) by described riveted joint hook portion (204) and described riveted holes (102) mutually rivet coordinate after be fixedly connected with.
3. the run-on tab mounting structure of circuit breaker as claimed in claim 2, is characterized in that: on described fixed contact (1), the side of described run-on tab (2) is provided with the fixed part (103) that U-bend rolls over and is fixed on pedestal (6); The position being positioned at described magnetic induction portion (201) below at described fixed part (103) offers fenestra (104), described pedestal (6) is provided with lug boss (601) withstands described magnetic induction portion (201) lower surface through described fenestra (104).
4. the run-on tab mounting structure of the circuit breaker as described in any one of claims 1 to 3, is characterized in that: described fixed contact (1) is provided with fixed contact cover (7).
5. the run-on tab mounting structure of circuit breaker as claimed in claim 4, is characterized in that: described fixed contact cover (7) is plastic jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683686.4U CN204155889U (en) | 2014-11-14 | 2014-11-14 | A kind of run-on tab mounting structure of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683686.4U CN204155889U (en) | 2014-11-14 | 2014-11-14 | A kind of run-on tab mounting structure of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155889U true CN204155889U (en) | 2015-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420683686.4U Active CN204155889U (en) | 2014-11-14 | 2014-11-14 | A kind of run-on tab mounting structure of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077893A (en) * | 2016-08-03 | 2016-11-09 | 安徽汇精模具研发科技有限公司 | A kind of high breaking striking integrated bracket |
| CN107393742A (en) * | 2016-05-16 | 2017-11-24 | 三菱电机株式会社 | Opening and closing device |
-
2014
- 2014-11-14 CN CN201420683686.4U patent/CN204155889U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393742A (en) * | 2016-05-16 | 2017-11-24 | 三菱电机株式会社 | Opening and closing device |
| CN107393742B (en) * | 2016-05-16 | 2019-01-18 | 三菱电机株式会社 | Opening and closing device |
| CN106077893A (en) * | 2016-08-03 | 2016-11-09 | 安徽汇精模具研发科技有限公司 | A kind of high breaking striking integrated bracket |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |