CN1164138A - Emergency circuit protector - Google Patents
Emergency circuit protector Download PDFInfo
- Publication number
- CN1164138A CN1164138A CN 97100046 CN97100046A CN1164138A CN 1164138 A CN1164138 A CN 1164138A CN 97100046 CN97100046 CN 97100046 CN 97100046 A CN97100046 A CN 97100046A CN 1164138 A CN1164138 A CN 1164138A
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- China
- Prior art keywords
- circuit
- sensor
- emergency circuit
- described emergency
- comparator
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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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- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Abstract
A safety protecting device for electric appliances is composed of power supply circuit, voltage sensor, current sensor, leakage sensor, executing mechanism, amplifier and detector, comparator, "OR" logic circuit, and driver circuit. It is installed between electric network and electricity consumers. When overvoltage of electric network and the leakage and overload of electricity consumer occur, it can protect electric appliances of consumer and prevent fire accident.
Description
The present invention relates to safety utilization of electric power, the relaying protection field.
The purpose of this invention is to provide a kind of low-power consumption, and have the highly reliable emergency circuit protector of using that residence, creepage protection function are gone in overvoltage, two fire.
Existing product as the quantitative protector of electric power, only has overcurrent security personnel effect, over-voltage protecting function, does not go into residence, creepage protection function but do not possess withstand voltage, anti-two fire of 380V.Use the electric line security controller, just be used for detection circuit hidden danger, but do not possess overvoltage, overcurrent, creepage protection function.Utensil is saved in electricity consumption from damage earth leakage protective, over-voltage protecting function.But it does not have two fire to go into residence, overcurrent protection function.This invention has overcurrent, overvoltage, two fire and goes into residence, creepage protection function.It is the electricity consumption secure device of full-scope safeguards Electrical Safety.
With emergency circuit protector by power circuit 1, voltage sensor 2, current sensor 3, electricity leakage sensor 4, actuator 5, amplification demodulator 6, amplification demodulator 7, amplification demodulator 8, comparator 9, comparator 10, comparator 11, " or " logical circuit 12 and drive circuit 13 form.Voltage sensor 2 is exported to amplification demodulator 6 by the electrical network input, and current sensor 3 is exported to amplification demodulator 7 by the electrical network input, and electricity leakage sensor 4 is exported to amplification demodulator 8 by the electrical network input, and power circuit 1 is supplied with each circuit power.Can when line voltage is lower than normal value, normally provide power supply with emergency circuit protector power circuit 1, and when 380V appears in line voltage, normally provide power supply for a long time and do not damage.With emergency circuit protector voltage sensor 2 are voltage transformers, or are made up of resistance pressure-dividing network, or are provided by the reduction voltage circuit in the power circuit 1.Use emergency circuit protector: current sensor 3 is current transformers, or Hall element, or is made of divertor.With emergency circuit protector electricity leakage sensor 4 is by zero-sequence transformer, or Hall element, or is made of divertor.With the reducing transformer in the emergency circuit protector power circuit 1, voltage sensor 2, current sensor 3, used mutual-inductance element is to use silicon steel sheet in the electricity leakage sensor 4, or amorphous core, or ferrite is formed.With emergency circuit protector comparator 9, comparator 10, comparator 11 has certain hysteresis thresholding.With emergency circuit protector amplification demodulator 6, amplification demodulator 7, the output characteristic of amplification demodulator 8 does not vary with temperature and changes.With emergency circuit protector actuator 5 are a kind of magnetic latching relays, or two keys relay, or the hilted broadsword relay.Can recover by automatic time delay with emergency circuit protector actuator 5, or manually recover by the user.
The present invention compares with prior art, has following advantage:
1, be full electronic, the reliability height, price is low, is convenient to a large amount of productions;
2, prevent trouble before it happens, considered many aspects.High pressure resistant for a long time, recover automatically, can protect all unsafe factors of user substantially, a tractor serves several purposes.
Claims (10)
1, a kind of emergency circuit protector of using is characterized in that: use emergency circuit protector by power circuit 1, voltage sensor 2, current sensor 3, electricity leakage sensor 4, actuator 5, amplification demodulator 6, amplification demodulator 7, amplification demodulator 8, comparator 9, comparator 10, comparator 11, " or " logical circuit 12 and drive circuit 13 form.Voltage sensor 2 is exported to amplification demodulator 6 by the electrical network input, and current sensor 3 is exported to amplification demodulator 7 by the electrical network input, and electricity leakage sensor 4 is exported to amplification demodulator 8 by the electrical network input, and power circuit 1 is supplied with each circuit power;
2, according to the described emergency circuit protector of using of claim 1, it is characterized in that: power circuit 1 can normally provide power supply when line voltage is lower than normal value, and when 380V appears in line voltage, normally provides power supply for a long time and does not damage;
3, according to the described emergency circuit protector of using of claim 1, it is characterized in that: voltage sensor 2 is voltage transformers, or is made up of resistance pressure-dividing network, or is provided by the reduction voltage circuit in the power circuit 1;
4, according to the described emergency circuit protector of using of claim 1, it is characterized in that: current sensor 3 is current transformers, or Hall element, or is made of divertor;
5, according to the described emergency circuit protector of using of claim 1, it is characterized in that: electricity leakage sensor 4 is by zero-sequence transformer, or Hall element, or is made of divertor;
6, according to claim 1,3,4, the 5 described emergency circuit protectors of using is characterized in that: the reducing transformer in the power circuit 1, and voltage sensor 2, current sensor 3, used mutual-inductance element is to use silicon steel sheet in the electricity leakage sensor 4, or amorphous core, or ferrite is formed;
7, according to the described emergency circuit protector of using of claim 1, it is characterized in that: comparator 9, comparator 10, comparator 11 have certain hysteresis thresholding;
8, according to the described emergency circuit protector of using of claim 1, it is characterized in that: amplification demodulator 6, amplification demodulator 7, the output characteristic of amplification demodulator 8 does not vary with temperature and changes;
9, according to the described emergency circuit protector of using of claim 1, it is characterized in that: actuator 5 is a kind of magnetic latching relays, or two keys relay, or the hilted broadsword relay;
10, according to claim 1, the 9 described emergency circuit protectors of using is characterized in that: actuator 5 can recover by automatic time delay, or is manually recovered by the user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100046 CN1164138A (en) | 1997-02-19 | 1997-02-19 | Emergency circuit protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100046 CN1164138A (en) | 1997-02-19 | 1997-02-19 | Emergency circuit protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1164138A true CN1164138A (en) | 1997-11-05 |
Family
ID=5164740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97100046 Pending CN1164138A (en) | 1997-02-19 | 1997-02-19 | Emergency circuit protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591347A (en) * | 2014-10-23 | 2016-05-18 | 无锡市金力电力成套设备有限公司 | Cable connection protection device based on leakage detection and humidity investigation |
| CN111130055A (en) * | 2020-02-21 | 2020-05-08 | 绍兴图雅电子科技有限公司 | Emergency circuit protection device with standby power supply |
-
1997
- 1997-02-19 CN CN 97100046 patent/CN1164138A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591347A (en) * | 2014-10-23 | 2016-05-18 | 无锡市金力电力成套设备有限公司 | Cable connection protection device based on leakage detection and humidity investigation |
| CN111130055A (en) * | 2020-02-21 | 2020-05-08 | 绍兴图雅电子科技有限公司 | Emergency circuit protection device with standby power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xiaodan Document name: Notice of first review |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xiaodan Document name: Deemed as a notice of withdrawal |
|
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |