CN2699534Y - Britain standard overcurrent protection plug - Google Patents
Britain standard overcurrent protection plug Download PDFInfo
- Publication number
- CN2699534Y CN2699534Y CN 200420020181 CN200420020181U CN2699534Y CN 2699534 Y CN2699534 Y CN 2699534Y CN 200420020181 CN200420020181 CN 200420020181 CN 200420020181 U CN200420020181 U CN 200420020181U CN 2699534 Y CN2699534 Y CN 2699534Y
- Authority
- CN
- China
- Prior art keywords
- overcurrent protection
- inserted sheet
- plug
- bimetal leaf
- binding post
- 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 provides a Britain standard overcurrent protection plug. The Britain standard overcurrent protection plug uses the principle of temperature distortion of a bimetallic strip, when the current is overloaded, the distortion of the bimetallic strip switches off the circuit, when the circuit of the electric appliance recovers to normal, a reset push button completes the reset, the operation is convenient, and the plug can be repeatedly used. The utility model realizes the overcurrent protection of the circuit through the temperature distortion of the bimetallic strip, no extra fuse wire is needed to provide, and the structure is simple.
Description
(1) technical field
The utility model relates to a kind of overcurrent protection plug, especially a kind of overcurrent protection English mark plug.
(2) background technology
Along with the raising of people's living standard, various household electrical appliance enter the ordinary people man, and the thing followed is owing to the household electrical appliance improper use, or the security incidents such as circuit overloads short circuit that cause because of the household electrical appliance quality problems happen occasionally.Thereby the research and development of Electrical Safety products such as overcurrent protection plug have been subjected to generally paying attention to.
Existing overcurrent protection English mark plug; its common feature is: be implanted into a fuse at the standard English plug; behind the specified protective current of operating current over insurance silk; the fuse melted by heat, circuit disconnects, and just continues to use as need and must change fuse; and that general family does not have fuse of the same type is standby; if transposing or replacing specification are improper voluntarily, the danger that causes potential short circuit so that get an electric shock is then arranged, so general such plug can not be reused.
Be 02260984.9 in the patent No., patent name is in the utility model patent of " plug "; a kind of overcurrent protection two-pin plug is provided; its principle is to utilize bimetal leaf temperature distortion principle; when current overload; bi-metal plate deformed disconnects circuit, and appliance circuit recovers normal back makes plug recover energising with reset button.This kind plug construction is simple, and is easy to operate, but can't be applicable to English mark plug.So be necessary to design a kind of simple in structure, easy to operate overcurrent protection English mark plug.
(3) summary of the invention
Need change fuse in order to solve the overcurrent protection of the Sino-British mark of prior art plug, can not reuse and existing bimetal leaf overcurrent protection structure can not be applicable to the deficiency of English mark plug, the utility model provides a kind of need not change fuse, can reuse and simple in structure, easy to operate overcurrent protection English mark plug.
For reaching the technical scheme that goal of the invention the utility model adopted be:
A kind of overcurrent protection English mark plug; mainly comprise base, cover plate, grounding insert-pin, zero line inserted sheet and live wire inserted sheet; grounding insert-pin directly is connected with power line with the zero line inserted sheet; described live wire inserted sheet is connected with binding post by the current overload protection protection unit, and described current overload protection protection unit comprises:
Conductive plate is connected with described live wire inserted sheet, and described conductive plate is provided with fixed contact;
With the bimetal leaf that binding post joins, described bimetal leaf is provided with the moving contact that matches with described fixed contact;
The reset button that has back-moving spring that described moving contact is contacted with described fixed contact;
Restoring board, the middle part is rotatable to be fixed on the base, and described restoring board one end matches with described reset button, other end bending, cooperates with described bimetal leaf end.
Described bimetal leaf is connected by brace with described binding post.
The beneficial effect of overcurrent protection English mark plug described in the utility model is mainly reflected in: (1) realizes the circuit overloads protection by the bimetal leaf thermal deformation, need not fuse be set additionally, and is simple in structure; (2) finish by reset button and reset, easy to operate, and plug is reusable.
(4) description of drawings
Fig. 1 is an overcurrent protection English mark plug conducting state schematic diagram described in the utility model;
Fig. 2 is an overcurrent protection English mark plug off-state schematic diagram described in the utility model;
(5) embodiment
Below in conjunction with specific embodiment the utility model is described further:
With reference to Fig. 1, Fig. 2; a kind of overcurrent protection English mark plug; mainly comprise base 1, cover plate, grounding insert-pin 3, zero line inserted sheet 4 and live wire inserted sheet 5; grounding insert-pin 3 directly is connected with power line with zero line inserted sheet 4; live wire inserted sheet 5 is connected with binding post 6 by the current overload protection protection unit, and described current overload protection protection unit comprises:
With the bimetal leaf 9 that binding post 6 joins, bimetal leaf 9 is provided with the moving contact 10 that matches with described fixed contact 9;
The reset button that has back-moving spring 11 that moving contact 10 is contacted with fixed contact 8;
Restoring board 12, the middle part is rotatable to be fixed on the base 1, and described restoring board 12 1 ends match with reset button 11, other end bending, cooperate with bimetal leaf 9 ends.
Bimetal leaf 9 is connected by brace 13 with binding post 6.
Referring to Fig. 1, electric current is passed to power line, circuit turn-on from 5 inputs of live wire inserted sheet through conductive plate 7, fixed contact 8, moving contact 10, bimetal leaf 9, brace 13 and binding post 6;
Referring to Fig. 2, when operating circuit surpasses rated current, bimetal leaf 9 temperature distortions, moving contact 10 breaks away from, cuts off circuit with fixed contact 8, being stabilized in the equilbrium position holding circuit after bimetal leaf 9 distortion disconnects, after circuit is normal, presses reset button 11 and make moving contact 10 contact circuit turn-on with fixed contact 8.
Claims (2)
1. plug marked in an overcurrent protection English; mainly comprise base, cover plate, grounding insert-pin, zero line inserted sheet and live wire inserted sheet; grounding insert-pin directly is connected with power line with the zero line inserted sheet; described live wire inserted sheet is connected with binding post by the current overload protection protection unit, and described current overload protection protection unit comprises:
Conductive plate is connected with described live wire inserted sheet, and described conductive plate is provided with fixed contact; With the bimetal leaf that binding post joins, described bimetal leaf is provided with the moving contact that matches with described fixed contact;
The reset button that has back-moving spring that described moving contact is contacted with described fixed contact; It is characterized in that also comprising:
Restoring board, the middle part is rotatable to be fixed on the base, and described restoring board one end matches with described reset button, other end bending, cooperates with described bimetal leaf end.
2. overcurrent protection English mark plug as claimed in claim 1 is characterized in that described bimetal leaf is connected by brace with described binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420020181 CN2699534Y (en) | 2004-02-13 | 2004-02-13 | Britain standard overcurrent protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420020181 CN2699534Y (en) | 2004-02-13 | 2004-02-13 | Britain standard overcurrent protection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699534Y true CN2699534Y (en) | 2005-05-11 |
Family
ID=34769672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420020181 Expired - Fee Related CN2699534Y (en) | 2004-02-13 | 2004-02-13 | Britain standard overcurrent protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699534Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541077A (en) * | 2020-04-29 | 2020-08-14 | 杨娟 | Safety plug |
-
2004
- 2004-02-13 CN CN 200420020181 patent/CN2699534Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541077A (en) * | 2020-04-29 | 2020-08-14 | 杨娟 | Safety plug |
| CN111541077B (en) * | 2020-04-29 | 2021-11-23 | 常熟市华岳触控科技有限公司 | Safety plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |