CN204030150U - Infrared tube electric shock preventing socket circuit for household electrical appliance - Google Patents
Infrared tube electric shock preventing socket circuit for household electrical appliance Download PDFInfo
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- CN204030150U CN204030150U CN201420403177.1U CN201420403177U CN204030150U CN 204030150 U CN204030150 U CN 204030150U CN 201420403177 U CN201420403177 U CN 201420403177U CN 204030150 U CN204030150 U CN 204030150U
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- resistance
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- infrared
- infrared tube
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Abstract
The utility model discloses the infrared tube electric shock preventing socket circuit for household electrical appliance, it comprises infrared tube detection module U1, reverse arithmetic unit U2, delay process chip U3, current amplifier U4 and relay J 1, the output of infrared tube detection module U1 is connected with the input of reverse arithmetic unit U2, oppositely the output of arithmetic unit U2 connects the input of delay process chip U3, the output of delay process chip U3 connects the input of current amplifier U4, the output of current amplifier U4 is connected with the relay J being connected 1 of socket metal contact piece with control civil power.The beneficial effects of the utility model are: utilize the process chip of single-chip microcomputer whether to insert socket by infrared tube detection module test plug and come conducting civil power and socket metal contact piece, process chip arranges delayed startup, has reached in plug plug and has failed in one's scheme and touched the object that plug metal contact piece also can not get an electric shock.
Description
Technical field
The utility model relates to the infrared tube electric shock preventing socket circuit for household electrical appliance, belongs to electronic technology field.
Background technology
Household electrical appliance are existing indispensable parts in the family; but general household electrical appliance are directly to insert on socket; and socket electrical shock protection measure useless, particularly child, old man may get an electric shock when plug plug, the hidden trouble of the health that causes damage or life.
Summary of the invention
The purpose of this utility model is to be provided for the infrared tube electric shock preventing socket circuit in household electrical appliance, overcomes the deficiencies in the prior art, plays the effect of protection against electric shock when plug plug.
The purpose of this utility model is achieved through the following technical solutions: for the infrared tube electric shock preventing socket circuit of household electrical appliance, it comprises infrared tube detection module U1, reverse arithmetic unit U2, delay process chip U3, current amplifier U4 and relay J 1, the output of infrared tube detection module U1 is connected with the input of reverse arithmetic unit U2, oppositely the output of arithmetic unit U2 connects the input of delay process chip U3, the output of delay process chip U3 connects the input of current amplifier U4, the output of current amplifier U4 is connected with the relay J being connected 1 of socket metal contact piece with control civil power.
Described infrared tube detection module U1 is by one group of infrared tube, resistance R 5, resistance R 3, and resistance R 4 forms, wherein, infrared tube comprises infrared transmitting tube and the infrared receiving tube that is arranged on socket internal plug seat both sides, resistance R 5 connect with infrared transmitting tube after ground connection, infrared receiving tube is NPN triode, the base stage of NPN triode is as infrared receiving terminal, the grounded emitter of NPN triode, the collector electrode of NPN triode is connected with resistance R 4 with resistance R 3 respectively, the other end ground connection of resistance R 3, the other end of resistance R 4 is connected with the input of reverse arithmetic unit U2 as the output of infrared tube detection module U1.
The positive pole of described reverse arithmetic unit U2 is as input place in circuit, oppositely the negative pole of arithmetic unit U2 is connected with a bleeder circuit, this bleeder circuit is in series by resistance R 1 and resistance R 2, resistance R 1 is connected with power supply, resistance R 2 ground connection, oppositely between the negative pole of arithmetic unit U2 access resistance R 1 and resistance R 2.
The beneficial effects of the utility model are: utilize the process chip of single-chip microcomputer whether to insert socket by infrared tube detection module test plug and come conducting civil power and socket metal contact piece, process chip arranges delayed startup, has reached in plug plug and has failed in one's scheme and touched the object that plug metal contact piece also can not get an electric shock.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model, but described in claimed scope is not limited to.
As Fig. 1, infrared tube electric shock preventing socket circuit for household electrical appliance, it comprises infrared tube detection module U1, reverse arithmetic unit U2, delay process chip U3, current amplifier U4 and relay J 1, the output of infrared tube detection module U1 is connected with the input of reverse arithmetic unit U2, oppositely the output of arithmetic unit U2 connects the input of delay process chip U3, the output of delay process chip U3 connects the input of current amplifier U4, and the output of current amplifier U4 is connected with the relay J being connected 1 of socket metal contact piece with control civil power.
Described infrared tube detection module U1 is by one group of infrared tube, resistance R 5, resistance R 3, and resistance R 4 forms, wherein, infrared tube comprises infrared transmitting tube and the infrared receiving tube that is arranged on socket internal plug seat both sides, resistance R 5 connect with infrared transmitting tube after ground connection, infrared receiving tube is NPN triode, the base stage of NPN triode is as infrared receiving terminal, the grounded emitter of NPN triode, the collector electrode of NPN triode is connected with resistance R 4 with resistance R 3 respectively, the other end ground connection of resistance R 3, the other end of resistance R 4 is connected with the input of reverse arithmetic unit U2 as the output of infrared tube detection module U1.
The positive pole of described reverse arithmetic unit U2 is as input place in circuit, oppositely the negative pole of arithmetic unit U2 is connected with a bleeder circuit, this bleeder circuit is in series by resistance R 1 and resistance R 2, resistance R 1 is connected with power supply, resistance R 2 ground connection, oppositely between the negative pole of arithmetic unit U2 access resistance R 1 and resistance R 2.
Whether outward pipe detection module U1 is used for detecting home electric appliance plug inserts socket and comes conducting civil power and socket metal contact piece, when plug plug, plug insertion socket, outward to managing detection module U1 conducting and signal being passed to reverse arithmetic unit U2, oppositely arithmetic unit U2 passes to delay process chip U3 by signal, delay process chip U3 is according to formula time delay output high level, turn-on relay after current amplifier U4 amplified current.When people is near socket, signal lag output due to delay process chip U3, while not noting touching plug metallic conductor when inserting socket, not conducting of relay J 1,, therefore can there is not Danger Electric shock risk in socket no power this moment, after time of delay, relay J 1 energising, circuit turn-on, socket energising.Such as, the signal lag of delay process chip U3 is output as 10s, in whole plug plug process, this 10s interpolation block is cold, if people touches socket metal contact piece accidentally in this time period, also can not conduct electricity, and the process of plug plug is only 1～2s conventionally, after plug plug completes later 15s, socket is just switched on, and now people has also departed from socket metal contact piece, has so just avoided the careless danger that touches socket metal contact piece and conduct electricity when plug plug.
Claims (3)
1. for the infrared tube electric shock preventing socket circuit of household electrical appliance, it is characterized in that: it comprises infrared tube detection module U1, reverse arithmetic unit U2, delay process chip U3, current amplifier U4 and relay J 1, the output of infrared tube detection module U1 is connected with the input of reverse arithmetic unit U2, oppositely the output of arithmetic unit U2 connects the input of delay process chip U3, the output of delay process chip U3 connects the input of current amplifier U4, the output of current amplifier U4 is connected with the relay J being connected 1 of socket metal contact piece with control civil power.
2. infrared tube electric shock preventing socket circuit according to claim 1, it is characterized in that: described infrared tube detection module U1 is by one group of infrared tube, resistance R 5, resistance R 3, and resistance R 4 forms, wherein, infrared tube comprises infrared transmitting tube and the infrared receiving tube that is arranged on socket internal plug seat both sides, resistance R 5 connect with infrared transmitting tube after ground connection, infrared receiving tube is NPN triode, the base stage of NPN triode is as infrared receiving terminal, the grounded emitter of NPN triode, the collector electrode of NPN triode is connected with resistance R 4 with resistance R 3 respectively, the other end ground connection of resistance R 3, the other end of resistance R 4 is connected with the input of reverse arithmetic unit U2 as the output of infrared tube detection module U1.
3. infrared tube electric shock preventing socket circuit according to claim 1, it is characterized in that: the positive pole of described reverse arithmetic unit U2 is as input place in circuit, oppositely the negative pole of arithmetic unit U2 is connected with a bleeder circuit, this bleeder circuit is in series by resistance R 1 and resistance R 2, resistance R 1 is connected with power supply, resistance R 2 ground connection, oppositely between the negative pole of arithmetic unit U2 access resistance R 1 and resistance R 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403177.1U CN204030150U (en) | 2014-07-21 | 2014-07-21 | Infrared tube electric shock preventing socket circuit for household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403177.1U CN204030150U (en) | 2014-07-21 | 2014-07-21 | Infrared tube electric shock preventing socket circuit for household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204030150U true CN204030150U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420403177.1U Expired - Fee Related CN204030150U (en) | 2014-07-21 | 2014-07-21 | Infrared tube electric shock preventing socket circuit for household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204030150U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870687A (en) * | 2015-01-21 | 2016-08-17 | 苏州鑫来科技有限公司 | Power socket having plug detection function |
| CN106936029A (en) * | 2017-04-12 | 2017-07-07 | 汪智伟 | A kind of electrical source socket and its electric operation control circuit figure |
| CN108268091A (en) * | 2016-12-30 | 2018-07-10 | 维沃移动通信有限公司 | A kind of interface protector, mobile terminal and method |
| CN110212380A (en) * | 2019-06-14 | 2019-09-06 | 佛山科学技术学院 | A kind of intelligent socket of low power consuming |
| CN113823964A (en) * | 2021-08-31 | 2021-12-21 | 珠海格力电器股份有限公司 | Socket protection circuit and socket |
-
2014
- 2014-07-21 CN CN201420403177.1U patent/CN204030150U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870687A (en) * | 2015-01-21 | 2016-08-17 | 苏州鑫来科技有限公司 | Power socket having plug detection function |
| CN105870687B (en) * | 2015-01-21 | 2018-04-27 | 苏州鑫来科技有限公司 | A kind of power outlet with plug detection function |
| CN108268091A (en) * | 2016-12-30 | 2018-07-10 | 维沃移动通信有限公司 | A kind of interface protector, mobile terminal and method |
| CN108268091B (en) * | 2016-12-30 | 2019-11-15 | 维沃移动通信有限公司 | A kind of interface protector, mobile terminal and method |
| CN106936029A (en) * | 2017-04-12 | 2017-07-07 | 汪智伟 | A kind of electrical source socket and its electric operation control circuit figure |
| CN110212380A (en) * | 2019-06-14 | 2019-09-06 | 佛山科学技术学院 | A kind of intelligent socket of low power consuming |
| CN110212380B (en) * | 2019-06-14 | 2024-03-26 | 佛山科学技术学院 | Low-energy-consumption intelligent socket |
| CN113823964A (en) * | 2021-08-31 | 2021-12-21 | 珠海格力电器股份有限公司 | Socket protection circuit and socket |
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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 |
Granted publication date: 20141217 Termination date: 20150721 |
|
| EXPY | Termination of patent right or utility model |