CN2317556Y - Anticreeping socket for electrical equipment - Google Patents
Anticreeping socket for electrical equipment Download PDFInfo
- Publication number
- CN2317556Y CN2317556Y CN 97237251 CN97237251U CN2317556Y CN 2317556 Y CN2317556 Y CN 2317556Y CN 97237251 CN97237251 CN 97237251 CN 97237251 U CN97237251 U CN 97237251U CN 2317556 Y CN2317556 Y CN 2317556Y
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- CN
- China
- Prior art keywords
- socket
- relay
- indicator light
- button
- diode
- 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 discloses an anti-creeping socket for electrical appliances, which is composed of the elements of a socket, an indicator light, a button, a relay, a silicon controlled rectifier, diodes, resistors, etc. The utility model not only has the advantage of preventing electrical appliances from creeping, but also has the advantage of preventing phase wires of a power supply from being connected mistakenly. When the utility model is used and a live wire and a ground wire of the power supply are not connected according to specification, the socket does not work; consequently, the mistake that the phase wires of the power supply are connected mistakenly is prevented. When the connection is correct, when the creepage of the electrical appliance occurs, at the moment, the indicator light is lightened; simultaneously, the silicon controlled rectifier is triggered; the relay acts to cut off the power supply of the socket; the electrical appliances are made to have no electrification for avoiding users from getting an electric shock by accident.
Description
The utility model relates to the socket that a kind of electrical appliance connects power supply.
At present, socket of the prior art has only the function of single connection power supply mostly, and it can not prevent the electrical appliance electric leakage, thereby, in case be inserted in electrical appliance electric leakage on the socket, if the user has touched the electrical equipment of this electric leakage because of carelessness, just be easy to be shocked by electricity, thereby casualty accident takes place.So socket of the prior art is still safety inadequately in use.
The purpose of this utility model is: thus provide a kind of when electrical appliance generation leaky, can cutting off the electricity supply automatically to prevent the socket that the electrical appliance electric leakage is hurted sb.'s feelings.
The utility model is to constitute like this: it is by socket (1), indicator light D1, D2, button T1～T3, relay J, controllable silicon K, diode E, resistance R is formed, indicator light D1 is the live wire end a and the zero line side b of combination hub (1) respectively, indicator light D2 is the zero line side b and the ground wire terminals c of combination hub (1) respectively, the ground wire terminals c of socket (1) connects the control utmost point of controllable silicon K by recovery button T1 and resistance R, relay J is connected between the zero line side b of the negative electrode of controllable silicon K and socket (1), the anode of controllable silicon K connects the end of the normally-closed contact J-1 of power firestreak and relay J, the positive pole of another terminating diode E of the normally-closed contact J-1 of relay J, the hot terminal a of the negative pole combination hub (1) of diode E, testing button T2 is in parallel with the hot terminal a and the ground wire terminals c of socket (1), and Current Regulation button T3 is in parallel with diode E.
The utility model compared with prior art not only has the advantage that prevents the electrical appliance electric leakage, also has the advantage of scalable size of current simultaneously.
Accompanying drawing 1 is a schematic appearance of the present utility model;
Accompanying drawing 2 is circuit theory diagrams of the present utility model.
Embodiment of the present utility model: socket in the present embodiment (1), indicator light D1, D2, button T1～T3, relay J, controllable silicon K, diode E, resistance R all adopts the finished product assembling of selling on the market, live wire end a and zero line side b with indicator light D1 difference combination hub (1), zero line side b and ground wire terminals c with indicator light D2 difference combination hub (1), the ground wire terminals c of socket (1) connects the control utmost point of controllable silicon K by recovery button T1 and resistance R, relay J is connected between the zero line side b of the negative electrode of controllable silicon K and socket (1), the anode of controllable silicon K connects the end of the normally-closed contact J-1 of power firestreak and relay J, the positive pole of another terminating diode E of the normally-closed contact J-1 of relay J, the hot terminal a of the negative pole combination hub (1) of diode E, it is in parallel with the hot terminal a and the ground wire terminals c of socket (1) to test button T2, and Current Regulation button T3 is in parallel with diode E.Operation principle of the present utility model is as follows: before use, elder generation is connected on the zero line of the AC power of 220V the zero line side b of socket (1), its live wire connects by above-mentioned requirements, plug with electrical appliance is inserted on the socket (1) then, when electrical appliance needs big current work, presses the button T3 diode E bypass is quit work, thereby make electrical appliance obtain maximum supply current, when cut-off push button T3, diode E work, its supply current reduces; In the electrical appliance course of work, when electric leakage takes place in electrical appliance, make the ground wire terminals c of socket (1) charged, at this moment indicator light D2 is bright, and controllable silicon K is triggered simultaneously, the relay J energising, its normally-closed contact J-1 disconnects, thereby cut-out socket (1) is connected with power firestreak, makes electrical appliance not charged, thereby has reached the purpose that prevents the electrical appliance electric leakage.After getting rid of the electrical appliance leak current fault, click recovery button T1 then entire circuit can recover operate as normal, when wanting testing circuit whether working properly right, can be by following testing button T2, whether the normally-closed contact J-1 that sees relay J moves, if action illustrates that circuit working is normal, otherwise just undesired.
Claims (1)
1, a kind of electrical appliance electric leakage socket that prevents, it is by socket (1), indicator light D1, D2, button T1～T3, relay J, controllable silicon K, diode E, resistance R is formed, it is characterized in that: indicator light D1 is the live wire end a and the zero line side b of combination hub (1) respectively, indicator light D2 is the zero line side b and the ground wire terminals c of combination hub (1) respectively, the ground wire terminals c of socket (1) connects the control utmost point of controllable silicon K by recovery button T1 and resistance R, relay J is connected between the zero line side b of the negative electrode of controllable silicon K and socket (1), the anode of controllable silicon K connects the end of the normally-closed contact J-1 of power firestreak and relay J, the positive pole of another terminating diode E of the normally-closed contact J-1 of relay J, the hot terminal a of the negative pole combination hub (1) of diode E, T2 is in parallel with the hot terminal a and the ground wire terminals c of socket (1) for the test button, and Current Regulation button T3 is in parallel with diode E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237251 CN2317556Y (en) | 1997-06-20 | 1997-06-20 | Anticreeping socket for electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237251 CN2317556Y (en) | 1997-06-20 | 1997-06-20 | Anticreeping socket for electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2317556Y true CN2317556Y (en) | 1999-05-05 |
Family
ID=33947938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97237251 Expired - Fee Related CN2317556Y (en) | 1997-06-20 | 1997-06-20 | Anticreeping socket for electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2317556Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383686C (en) * | 2004-01-19 | 2008-04-23 | 谭启仁 | General purpose standard chips of electrical appliances protection wall plugs employing flag bits for display modes differentiating |
-
1997
- 1997-06-20 CN CN 97237251 patent/CN2317556Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383686C (en) * | 2004-01-19 | 2008-04-23 | 谭启仁 | General purpose standard chips of electrical appliances protection wall plugs employing flag bits for display modes differentiating |
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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 |