CN2386552Y - Power-supply socket with high sensitivity leakage and overvoltage protection - Google Patents
Power-supply socket with high sensitivity leakage and overvoltage protection Download PDFInfo
- Publication number
- CN2386552Y CN2386552Y CN 99236272 CN99236272U CN2386552Y CN 2386552 Y CN2386552 Y CN 2386552Y CN 99236272 CN99236272 CN 99236272 CN 99236272 U CN99236272 U CN 99236272U CN 2386552 Y CN2386552 Y CN 2386552Y
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- supply socket
- electric leakage
- release
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Abstract
The utility model relates to a power-supply socket with high-sensitivity protection to electric leakage and overvoltage. An electric leakage and overvoltage protective device is arranged in a standard or a nonstandard power-supply socket, and a power supply which firstly passes through the device is then connected with an output terminal in socket jacks. The protective device comprises a releaser, an induction coil, a driving circuit and an overvoltage detecting circuit. The utility model has the advantages that the utility model can implement high-sensitivity protection to electric leakage and overvoltage for power-supply sockets, so that more effective protection can be improved for electric appliances; the utility model also has the advantages of small size and convenient operation.
Description
The utility model relates to a kind of electrical installation, especially a kind of supply socket with earth leakage protective and over-pressure safety device.
Power consumption equipment or household electrical appliance electric leakage and can injuring when touching human body.Electric current by human body is big more dangerous more.The earth leakage circuit-breaker that uses generally is set in 30mA at present, has both taken into account human body safety, considers that again it connects the needs of multiple electrical equipment.But in high-risk place and special electrical equipment (as water heater etc.), this numerical value still has certain danger, should be advisable with 10mA.In this case, existing earth leakage circuit-breaker should not use.
Under many circumstances, indivedual electrical equipment need independent high-sensitive earth leakage protective device, and are both sensitive inadequately with existing earth leakage circuit-breaker and improper, account for volume again.
Existing earth leakage circuit-breaker also has a bit not enough, can not cut off the electricity supply under the situation of overvoltage exactly, causes the injury to electrical equipment.
The purpose of this utility model is the shortcoming that overcomes prior art, and a kind of special supply socket is provided, and is provided with high-sensitive earth leakage protective and over-pressure safety device in this socket.At electrical equipment slight electric leakage and supply voltage take place and can cut off the electricity supply rapidly when too high, to protect the safety of personal life security and electrical equipment.
For achieving the above object, the utility model adopts following technical scheme, in a standard type or non-standard supply socket, is provided with electric leakage and over-pressure safety device, and power supply through this device, is received the lead-out terminal in the socket aperture earlier again.This protective device comprises release, induction coil, drive circuit over-voltage detection circuit.
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is a circuit diagram of the present utility model;
Fig. 2 is the structural representation of the utility model release.
See figures.1.and.2, design feature of the present utility model is, be provided with electric leakage and over-pressure safety device in the shell of supply socket, this electric leakage and over-pressure safety device are made up of release (10), induction coil (20), drive circuit (30) and over-voltage detection circuit (40); Power supply lambda line elder generation is through the dropout switch (11) of release (10), the lead-out terminal (50) that leads to supply socket again through induction coil (20), induction coil (20) is access to drive circuit (30), the output of drive circuit (30) is access to the drive coil (12) of release (10), and the trigger end of drive circuit (30) also is connected to over-voltage detection circuit (40).
The dropout switch (11) of release of the present utility model (10) is designed to the push type structure, and pressing lever (111) is provided with lock hole (112) and spring (113), lock hole (112) and interior elasticity locking bar (121) coupling of drive coil (12).
The brief description operation principle of the present utility model and the course of work.
During use, press the dropout switch (11) of release (10), the switch (11) of threading off this moment is connected, power supply arrives socket lead-out terminal (50) through this switch and induction coil (20), with dropout switch (11) locking, socket lead-out terminal (50) has power supply output to elasticity locking bar (121) in the drive coil (12) because the effect insertion lock hole (121) of spring is interior simultaneously.
When electric leakage takes place in electrical equipment, the electric current that phase line and zero line pass through does not wait, the output winding of induction coil is sensed certain voltage, the controllable silicon SCR of drive circuit (30) is triggered, drive coil (12) has electric current to pass through, lock hole (112) is left in (121) adhesive of elasticity locking bar, and pressing lever (111) bounces under the effect of spring (113) and leaves (promptly threading off), and dropout switch (11) is cut off the electricity supply rapidly.
When having served as Hair Fixer and giving birth to, the voltage on the discharge tube FD dividing point also raises, and highly touches the controllable silicon SCR conducting during to discharge tube FD conducting, also makes dropout switch (11) action rapidly, realizes overvoltage protection.
The utility model has the advantage of highly sensitive electric leakage and overvoltage are carried out in supply socket Protection improve the more effective protection to electrical equipment, and volume is little, and is easy to operate.
Claims (2)
1. supply socket with highly sensitive electric leakage and overvoltage protection, it is characterized in that being provided with in the shell of supply socket electric leakage and over-pressure safety device, this electric leakage and over-pressure safety device are made up of release (10), induction coil (20), driving electrical equipment (30) and over-voltage detection circuit (40); Power supply lambda line elder generation is through the dropout switch (11) of release (10), the lead-out terminal (50) that leads to supply socket again through induction coil (20), induction coil (20) is access to drive circuit (30), the output of drive circuit (30) is access to the drive coil (12) of release (10), and the trigger end of drive circuit (30) also is connected to over-voltage detection circuit (40).
2. the supply socket with highly sensitive electric leakage and overvoltage protection as claimed in claim 1; the dropout switch (11) that it is characterized in that release (10) is designed to the push type structure; pressing lever (111) is provided with spring (113) and lock hole (121), this lock hole (112) and interior elasticity locking bar (121) coupling of drive coil (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99236272 CN2386552Y (en) | 1999-06-09 | 1999-06-09 | Power-supply socket with high sensitivity leakage and overvoltage protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99236272 CN2386552Y (en) | 1999-06-09 | 1999-06-09 | Power-supply socket with high sensitivity leakage and overvoltage protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2386552Y true CN2386552Y (en) | 2000-07-05 |
Family
ID=34024109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99236272 Expired - Fee Related CN2386552Y (en) | 1999-06-09 | 1999-06-09 | Power-supply socket with high sensitivity leakage and overvoltage protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2386552Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728813B (en) * | 2008-10-23 | 2013-10-16 | 西门子公司 | Overvoltage protection method in system connected with power supply network, overvoltage protective apparatus and equipment provided with the overvoltage protective apparatus |
| CN104752913A (en) * | 2015-03-20 | 2015-07-01 | 中山市唐王光电技术有限公司 | Universal safety electric socket |
-
1999
- 1999-06-09 CN CN 99236272 patent/CN2386552Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728813B (en) * | 2008-10-23 | 2013-10-16 | 西门子公司 | Overvoltage protection method in system connected with power supply network, overvoltage protective apparatus and equipment provided with the overvoltage protective apparatus |
| CN104752913A (en) * | 2015-03-20 | 2015-07-01 | 中山市唐王光电技术有限公司 | Universal safety electric socket |
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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 |