CN202133734U - Detection device of earth leakage protective device - Google Patents
Detection device of earth leakage protective device Download PDFInfo
- Publication number
- CN202133734U CN202133734U CN201120253110U CN201120253110U CN202133734U CN 202133734 U CN202133734 U CN 202133734U CN 201120253110 U CN201120253110 U CN 201120253110U CN 201120253110 U CN201120253110 U CN 201120253110U CN 202133734 U CN202133734 U CN 202133734U
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- China
- Prior art keywords
- earth leakage
- leakage protective
- protective device
- resistance
- detection device
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- 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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Abstract
The utility model discloses a detection device of an earth leakage protective device. The detection device includes a plug and a resistance circuit. The resistance value of the resistance circuit is at least 7333 Omega. Two ends of the resistance circuit connect with two prongs respectively. A resistor is adopted in the resistance circuit. The detection device of the earth leakage protective device in the utility model has a simple structure. All of components of the detection device can be bought everywhere in a market. The detection device also has a low cost. And the detection device can be used conveniently. The plug just needs to be inserted into a socket of a circuit having an earth leakage protective device, and then whether the earth leakage protective device is in a normal working state can be detected. The detection device of the earth leakage protective device in the utility model has a high practical applicability.
Description
Technical field
The utility model relates to a kind of electric appliance checking device, relates in particular to a kind of earth leakage protective device pick-up unit.
Background technology
Earth leakage protective device is a kind of protection personal safety, prevents the electrical equipment of electrical fire, under rated condition, when leakage current meets or exceeds set-point, can cut off the electricity supply automatically, thereby reach the protection purpose.In covil construction such as dwelling house and public building,, all can use earth leakage protective device in order to protect the person and security appliance.But in life, even if earth leakage protective device has been installed, but whether earth leakage protective device normal mounting whether exists fault, and of long duration also can operate as normal etc., all need to understand at any time, to guarantee Electrical Safety.Though had earth leakage protective device pick-up unit on the market, mostly there is complex structure in these devices, and cost an arm and a leg, and use also comparatively shortcomings such as trouble, thereby cause the practicality reduction.
The utility model content
To the above-mentioned deficiency that prior art exists, the purpose of the utility model just is to provide a kind of earth leakage protective device pick-up unit, can effectively solve existing pick-up unit complex structure, and cost is high, uses the problem of trouble.
To achieve these goals; The technical scheme that the utility model adopts is such: a kind of earth leakage protective device pick-up unit; Comprise plug and resistance circuit, the resistance of said resistance circuit is at least 7333 Ω, and the two ends of this resistance circuit link to each other with two inserted sheets of plug respectively.
Further, said resistance circuit adopts a resistance, makes simpler.
The resistance of said resistance circuit is 8000 Ω.
Design concept: earth leakage protective device residual operating current size national regulation is 30mA, thereby according to R=U/I, calculates resistance sizes, because mains voltage is generally 220V, thereby confirms that resistance is at least 7333mA.Directly this resistance is inserted and be equipped with in the circuit of earth leakage protective device; Through have in the mimic channel greater than or identical leakage current; Make the earth leakage protective device would trip; If the earth leakage protective device would trip explains that then earth leakage protective device can operate as normal, otherwise earth leakage protective device itself then is described or in installation, is had problems.
Compared with prior art, the advantage of the utility model is: simple in structure, can buy everywhere on each element market, and also with low cost; Easy to use, only need with plug insert can detect earth leakage protective device on the socket in the circuit that earth leakage protective device is installed can operate as normal, practicality is higher.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
To combine accompanying drawing and embodiment that the utility model is described further below.
Embodiment: referring to Fig. 1, a kind of earth leakage protective device pick-up unit comprises plug 1 and resistance circuit 2, and the resistance of said resistance circuit 2 is at least 7333 Ω, and the two ends of this resistance circuit 2 link to each other with two inserted sheets of plug 1 respectively.Said resistance circuit 2 can have some resistance serial or parallel connections to constitute.During production, can resistance circuit 2 be installed on the circuit board, with a shell circuit board being protected, both protect resistance, increase security again, it is also convenient to carry simultaneously, very practical for the electrician.
As preferably, said resistance circuit 2 adopts a resistance, makes simplyr, and the resistance of this resistance circuit 2 is 8000 Ω.
Design concept: earth leakage protective device residual operating current size national regulation is 30mA, thereby according to R=U/I, calculates resistance sizes, because mains voltage is generally 220V, thereby confirms that resistance is at least 7333mA.Directly this resistance is inserted and be equipped with in the circuit of earth leakage protective device; Through have in the mimic channel greater than or identical leakage current; Make the earth leakage protective device would trip; If the earth leakage protective device would trip explains that then earth leakage protective device can operate as normal, otherwise earth leakage protective device itself then is described or in installation, is had problems.
The utility model is simple in structure, can buy everywhere on each element market, and also with low cost; Easy to use, can detect earth leakage protective device on the socket that only needs plug 1 is inserted in the circuit that earth leakage protective device is installed operate as normal, and practicality is higher.
Claims (3)
1. earth leakage protective device pick-up unit, it is characterized in that: comprise plug and resistance circuit, the resistance of said resistance circuit is at least 7333 Ω, and the two ends of this resistance circuit link to each other with two inserted sheets of plug respectively.
2. earth leakage protective device pick-up unit according to claim 1 is characterized in that: said resistance circuit adopts a resistance.
3. earth leakage protective device pick-up unit according to claim 1 and 2 is characterized in that: the resistance of said resistance circuit is 8000 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120253110U CN202133734U (en) | 2011-07-18 | 2011-07-18 | Detection device of earth leakage protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120253110U CN202133734U (en) | 2011-07-18 | 2011-07-18 | Detection device of earth leakage protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202133734U true CN202133734U (en) | 2012-02-01 |
Family
ID=45522498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120253110U Expired - Fee Related CN202133734U (en) | 2011-07-18 | 2011-07-18 | Detection device of earth leakage protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202133734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837010A (en) * | 2018-08-16 | 2020-02-25 | 天津市业洪检测技术发展有限公司 | Novel leakage protector detection equipment for building electrical equipment |
-
2011
- 2011-07-18 CN CN201120253110U patent/CN202133734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837010A (en) * | 2018-08-16 | 2020-02-25 | 天津市业洪检测技术发展有限公司 | Novel leakage protector detection equipment for building electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING IRON AND STEEL CO., LTD. Free format text: FORMER OWNER: CHONGQING IRON + STEEL (GROUP) CO., LTD. Effective date: 20120608 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400080 DADUKOU, CHONGQING TO: 401258 CHANGSHOU, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120608 Address after: No. 401258 Chongqing City Economic and Technological Development Zone, Changshou District Road Patentee after: Chongqing Iron and Steel Co., Ltd. Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee before: Chongqing Iron & Steel (Group) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |