CN204966871U - Safe socket with earthleakage protective equipment - Google Patents
Safe socket with earthleakage protective equipment Download PDFInfo
- Publication number
- CN204966871U CN204966871U CN201520695385.8U CN201520695385U CN204966871U CN 204966871 U CN204966871 U CN 204966871U CN 201520695385 U CN201520695385 U CN 201520695385U CN 204966871 U CN204966871 U CN 204966871U
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- resistance
- closed contact
- optocoupler
- diode
- electric capacity
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Abstract
The utility model relates to a socket technical field discloses a safe socket with earthleakage protective equipment, including three hole sockets, still include relay, rectifier circuit, first to fourth resistance, first electric capacity to third electric capacity, first diode, second diode, opto -coupler, time -base circuit, emitting diode, the relay is equipped with a normally closed contact and the 2nd normally closed contact, a normally closed contact and the 2nd normally closed contact connect respectively at three hole sockets's live wire interface and zero line interface, three hole sockets's earth connection is connected with the input positive pole of opto -coupler through first resistance, the input negative pole of opto -coupler is connected with a normally closed contact through first diode, rectifier circuit's an one end and a normally closed contact are connected, and its other end is connected with the 2nd normally closed contact through first electric capacity, a second resistance and a capacitance parallel connection. The utility model discloses the action is reliable, little and the realization earth leakage protection function that can be better of earth leakage protection electric current.
Description
Technical field
The utility model relates to jack technology field, more particularly, and particularly a kind of safety socket with earth leakage protective device.
Background technology
, if air-conditioning, circuit, electric fan, computer etc. are inserted in socket to remain dormant state, an electric fault and fire will be there is when thunderbolt, electric leakage, bring serious harm to personal family's property in existing various attaching plug.Now widely used socket is not with earth leakage protective device, as load short circuits can cause the circuit of small size to trip, affects normal the work even generation of security incident of other power consumption equipment; For this reason, be necessary to research and develop a kind of safety socket with earth leakage protective device.
Utility model content
The purpose of this utility model is to provide a kind of safety socket with earth leakage protective device.
In order to solve problem set forth above, the technical solution adopted in the utility model is:
Have a safety socket for earth leakage protective device, comprise Three-hole socket, also comprise relay, rectification circuit, first to fourth resistance, the first electric capacity is to the 3rd electric capacity, the first diode, the second diode, optocoupler, time-base circuit, light-emitting diode;
Described relay is provided with the first normally-closed contact and the second normally-closed contact;
Described first normally-closed contact and the second normally-closed contact are connected to fire-wire interfaces and the zero line interface of Three-hole socket;
The earth connection of described Three-hole socket is connected with the input anode of optocoupler by the first resistance, and the input cathode of described optocoupler is connected with the first normally-closed contact by the first diode;
One end of described rectification circuit is connected with the first normally-closed contact, and its other end is connected with the second normally-closed contact by the first electric capacity, described second resistance and the first Capacitance parallel connection;
The output emitter of described optocoupler is connected with dead resistance, and its output collector electrode is connected with the 3rd resistance; Described second electric capacity one end is connected with the 3rd resistance, and the other end is connected with the output emitter of optocoupler;
Described 4th resistance and the 3rd Capacitance parallel connection, one end of described 4th resistance is connected with the 3rd resistance, and described one end of 3rd electric capacity is connected with the output emitter of optocoupler;
First pin of described time-base circuit is connected with the output emitter of optocoupler, its second pin is connected with the output collector electrode of optocoupler, its the 3rd pin is connected with light-emitting diode, its the 4th pin, the 8th pin are all connected with the 3rd resistance, and its 6th pin, the 7th pin are all connected between the 4th resistance and the 3rd electric capacity;
Described light-emitting diode is connected with the output emitter of optocoupler by the main coil of relay, and described second diode is in parallel with the main coil of relay.
According to a preferred embodiment of the present utility model: also comprise the Transient Suppression Diode with the second Capacitance parallel connection.
According to a preferred embodiment of the present utility model: described time-base circuit is 555 time-base circuits.
Compared with prior art, the beneficial effects of the utility model are: the utility model reliable in action, and earth leakage protective electric current is little and can realize creepage protection function preferably.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram with the safety socket of earth leakage protective device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
Consult shown in Fig. 1; the utility model provides a kind of safety socket with earth leakage protective device; comprise Three-hole socket X; also comprise relay K, rectification circuit D1, first to fourth resistance R1-R4, the first electric capacity is to the 3rd electric capacity C1-C3, the first diode D2, the second diode D3, optocoupler U1, time-base circuit A1, LED.
Described relay K is provided with the first normally-closed contact K1 and the second normally-closed contact K2.
Described first normally-closed contact K1 and the second normally-closed contact K2 is connected to fire-wire interfaces and the zero line interface of Three-hole socket X.
The earth connection of described Three-hole socket X is connected with the input anode of optocoupler U1 by the first resistance R1, and the input cathode of described optocoupler U1 is connected with the first normally-closed contact K1 by the first diode D2.
One end of described rectification circuit D1 is connected with the first normally-closed contact K1, and its other end is connected with the second normally-closed contact K2 by the first electric capacity C1, and described second resistance R2 is in parallel with the first electric capacity C1.
The output emitter of described optocoupler U1 is connected with dead resistance D1, and its output collector electrode is connected with the 3rd resistance R3; Described second electric capacity C2 one end is connected with the 3rd resistance R3, and the other end is connected with the output emitter of optocoupler U1.
Described 4th resistance R4 is in parallel with the 3rd electric capacity C3, and one end of described 4th resistance R4 is connected with the 3rd resistance R3, and described one end of 3rd electric capacity C3 is connected with the output emitter of optocoupler U1.
First pin of described time-base circuit A1 is connected with the output emitter of optocoupler U1, its second pin is connected with the output collector electrode of optocoupler U1, its the 3rd pin is connected with LED, its the 4th pin, the 8th pin are all connected with the 3rd resistance R3, and its 6th pin, the 7th pin are all connected between the 4th resistance R4 and the 3rd electric capacity C3.
Described LED is connected with the output emitter of optocoupler U1 by the main coil of relay K, and described second diode D3 is in parallel with the main coil of relay K.
The utility model also comprises the Transient Suppression Diode TVS in parallel with the second electric capacity C2.
As preferably, described time-base circuit A1 is 555 time-base circuits.
555 time-base circuit A1 monostable mode of operation wholeheartedly, at ordinary times because trigger end second pin is in high level, A1 is in reset mode, the 3rd pin output low level, and relay K is failure to actuate, and its normally-closed contact K1, K2 are closed, after connection electrical equipment; When the outer casing electrification of electrical equipment, its leakage current passes through the ground hole in Three-hole socket X and forms loop through resistance R1, optocoupler U1 and D2, now electric current makes the luminous tube LED lighting in optocoupler U1, namely the output collector electrode of optocoupler U1 and second pin of A1 are in low level, time-base circuit A1 set, and its 3rd pin exports high level, relay K obtains electric adhesive, its normally-closed contact K1, K2 open, and the power supply of electrical equipment is cut off, the warning of LED luminescence simultaneously.Achieve creepage protection function.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (3)
1. one kind has the safety socket of earth leakage protective device, comprise Three-hole socket, it is characterized in that: also comprise relay, rectification circuit, first to fourth resistance, the first electric capacity is to the 3rd electric capacity, the first diode, the second diode, optocoupler, time-base circuit, light-emitting diode;
Described relay is provided with the first normally-closed contact and the second normally-closed contact,
Described first normally-closed contact and the second normally-closed contact are connected to fire-wire interfaces and the zero line interface of Three-hole socket;
The earth connection of described Three-hole socket is connected with the input anode of optocoupler by the first resistance, and the input cathode of described optocoupler is connected with the first normally-closed contact by the first diode;
One end of described rectification circuit is connected with the first normally-closed contact, and its other end is connected with the second normally-closed contact by the first electric capacity, described second resistance and the first Capacitance parallel connection;
The output emitter of described optocoupler is connected with dead resistance, and its output collector electrode is connected with the 3rd resistance; Described second electric capacity one end is connected with the 3rd resistance, and the other end is connected with the output emitter of optocoupler;
Described 4th resistance and the 3rd Capacitance parallel connection, one end of described 4th resistance is connected with the 3rd resistance, and described one end of 3rd electric capacity is connected with the output emitter of optocoupler;
First pin of described time-base circuit is connected with the output emitter of optocoupler, its second pin is connected with the output collector electrode of optocoupler, its the 3rd pin is connected with light-emitting diode, its the 4th pin, the 8th pin are all connected with the 3rd resistance, and its 6th pin, the 7th pin are all connected between the 4th resistance and the 3rd electric capacity;
Described light-emitting diode is connected with the output emitter of optocoupler by the main coil of relay, and described second diode is in parallel with the main coil of relay.
2. the safety socket with earth leakage protective device according to claim 1, is characterized in that: also comprise the Transient Suppression Diode with the second Capacitance parallel connection.
3. the safety socket with earth leakage protective device according to claim 1, is characterized in that: described time-base circuit is 555 time-base circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695385.8U CN204966871U (en) | 2015-09-09 | 2015-09-09 | Safe socket with earthleakage protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695385.8U CN204966871U (en) | 2015-09-09 | 2015-09-09 | Safe socket with earthleakage protective equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966871U true CN204966871U (en) | 2016-01-13 |
Family
ID=55061912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520695385.8U Expired - Fee Related CN204966871U (en) | 2015-09-09 | 2015-09-09 | Safe socket with earthleakage protective equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166453A1 (en) * | 2017-03-14 | 2018-09-20 | 广东欧珀移动通信有限公司 | Socket circuit, socket, and mobile terminal |
-
2015
- 2015-09-09 CN CN201520695385.8U patent/CN204966871U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166453A1 (en) * | 2017-03-14 | 2018-09-20 | 广东欧珀移动通信有限公司 | Socket circuit, socket, and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190909 |