CN201163720Y - Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off - Google Patents

Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off Download PDF

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Publication number
CN201163720Y
CN201163720Y CNU2008200809035U CN200820080903U CN201163720Y CN 201163720 Y CN201163720 Y CN 201163720Y CN U2008200809035 U CNU2008200809035 U CN U2008200809035U CN 200820080903 U CN200820080903 U CN 200820080903U CN 201163720 Y CN201163720 Y CN 201163720Y
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CN
China
Prior art keywords
protector
power
base stage
diode
emitter
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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.)
Expired - Fee Related
Application number
CNU2008200809035U
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Chinese (zh)
Inventor
李德恒
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李德恒
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Priority to CNU2008200809035U priority Critical patent/CN201163720Y/en
Application granted granted Critical
Publication of CN201163720Y publication Critical patent/CN201163720Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a multifunctional home appliance protector which can be automatically released when the power is switched on after power failure. The protector consists of an air switch, an electric leakage detecting release, an overvoltage and undervoltage detector and a power-on single trigger. The protector is characterized in that the electric leakage detecting release consists of diodes(V1, V2 and V4), a controllable silicon(V3), resistances(R1, R2, R3 and R4), capacitances(C1 and C2), a zero sequence transformer(TA) and a release coil(KA), wherein a control electrode of the controllable silicon(V3) is connected with the power-on signal trigger formed by a capacitance C3, a resistance R5 and a diode V5, and simulataneously connected with the overvoltage and undervoltage detector consisting of resistances(R6, R7, R8, R9, R10, R11 and R12), capacitances(C4, C5 and C6), a diode(V6) and triodes(V7, V8, V9 and V10); when the line is powered off and then is electrified, the protector can effectively avoid the burnout of the unattended electrically cooking appliances due to the automatic electrification and further avoid fire accident; moreover, the protector can also protect home appliances under overvoltage or undervoltage conditions; and the protector has the advantages of electricity conservation, no noise, simple circuit, multiuse of one machine, small volume of products, low cost and reliable performance, etc.

Description

The multipurpose man non-electricity protector that can thread off automatically when sending a telegram here again after the outage
Technical field
The utility model relates to a kind of household appliance protecting device, and is particularly a kind of when sending a telegram here behind power cut-off again, the multipurpose man non-electricity protector that can thread off automatically.
Background technology
Raising along with progress of science and technology and people's living standard, no matter cities and towns are still rural, various electric cooking appliances, electric heater, TV, home appliances such as refrigerator are crowded in people's the family life just in a large number, safety utilization of electric power simultaneously, prevent to cause electrical fire because of the household electrical appliance improper use, become the critical problem of closing that causes, especially this electric appliances in use, the user goes out because of power failure and when having forgotten the powered-down switch again, in case send a telegram here again, then can be because of long-time heat burn out household electrical appliance, even cause major accident such as electrical fire.For this reason, people are constantly seeking effective solution.Prior art mainly adopts following two kinds of devices to solve above problem: the first selects for use A.C. contactor to carry out the decompression power-off protection in the use circuit of electric cooking appliance, electric heater; its weak point is that volume is big; power consumption is many; function singleness; noise is big, and coil is because of being in easily heating burnout or the like of "on" position for a long time.It two is to select for use small-sized decompression circuit breaker to carry out the decompression power-off protection; its weak point is that magnetictrip needs long-term adhesive energising; the problem of being brought is still to want power consumption; and when mains fluctuations are big, produce noise; voltage rating deviation range during release movement big (± 30%;), so can not use in supply voltage area on the low side.Therefore, be necessary prior art is improved with perfect, to satisfy the needs in market.
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of convenient and practical, safe and reliable, the multipurpose man non-electricity protector of the disjunction of threading off automatically when sending a telegram here again after the outage.
The utility model is realized by following technical proposal: the multipurpose man non-electricity protector that can thread off automatically when sending a telegram here again after a kind of outage; it is by air switch; the detection of electrical leakage release, over-and under-voltage detector and incoming telephone signal trigger constitute, and it is characterized in that: the detection of electrical leakage release is by diode V 1, V 2, V 4, controllable silicon V 3, resistance R 1-R 4, capacitor C 1, C 2, zero-sequence transformer TA, trip coil KA constitutes, wherein, controllable silicon V 3The control utmost point with by capacitor C 3, resistance R 5And diode V 5The incoming telephone signal trigger that constitutes links to each other, simultaneously controllable silicon V 3The control utmost point again with by resistance R 6-R 12, capacitor C 4-C 6, diode V 6And triode V 7-V 10The over-and under-voltage detector that constitutes links to each other.So that when sending a telegram here again after the circuit outage, by C in the incoming telephone signal trigger 3The pulse signal instantaneous trigger controllable silicon V that forms 3After making its conducting, make the automatic disjunction of air switch, when perhaps under-voltage, overvoltage takes place circuit, trigger controllable silicon V by release KA action 3After making its conducting, make the automatic disjunction of air switch by release KA action.
In the described incoming telephone signal trigger, capacitor C 3With resistance R 5After the parallel connection again with diode V 5Be in series, so that utilize C 3The pulse signal instantaneous trigger controllable silicon V that forms 3Make its conducting.
In the described over-and under-voltage detector, triode V 10Collector electrode pass through R 11With C 4Anodal connection, V 10Emitter and C 4Negative pole links, at V 10Collector electrode and emitter between be connected with C 6, at V 10Collector electrode and base stage between be connected with C 5, at V 10Base stage and C 4Be in series with R between the positive pole 9And V 9, V 9Emitter and C 4Anodal connection, V 9Base stage and R 9Link; V 8Collector electrode and V 10Base stage connect V 8Emitter and C 4Negative pole connects, at V 8Base stage and emitter between be connected with R 10, R 7With R 8Tie point and V 7Emitter connect V 8Base stage and V 7Base stage be connected so that pass through V 7, V 9Reverse breakdown characteristics, make overvoltage, under-voltage specified action Deviation Control in small range be ± 3% in, thereby improve its precision.
The utility model compared with prior art has following advantage and effect: adopt such scheme, can be when air switch be in normal closed "on" position, tripping coil two ends in the detection of electrical leakage release are in release condition because of no operating voltage, when sending a telegram here again after in case circuit cuts off the power supply, by the capacitor C in the incoming telephone signal trigger 3The pulse signal instantaneous trigger controllable silicon V that forms 3Make its conducting; make tripping coil get electronic work; thereby touch the automatic disjunction of air switch; effectively protect household electrical appliances such as electric cooking appliance; automatically energising and cause it to be burnt out under the unmanned state; or the fire incident that causes thus, simultaneously when overvoltage or unstable situation such as under-voltage appear in circuit, by V in the over-and under-voltage detector 7, V 9Reverse breakdown characteristics, make V 10Raise the signal triggering controllable silicon V of output by its collector electrode 3Conducting; tripping coil KA outage; air switch QF action power dump; thereby effectively protect household electrical appliances to cause damage etc. because of being subjected to overvoltage, the under-voltage influence, simultaneously the utility model have also that power saving, noiselessness, circuit are simple, a tractor serves several purposes, advantages such as small product size is little, cost is low, dependable performance.
Description of drawings
Fig. 1 is a circuit structure diagram of the present utility model.
Embodiment
The embodiment that provides below by accompanying drawing is described further the utility model, but content of the present utility model is not limited in this.
Among the figure, 1 is air switch QF; 2 is the detection of electrical leakage release, by diode V 1, V 2, V 4, resistance R 1, R 2, R 3, R 4, capacitor C 1, C 2, controllable silicon V 3, zero-sequence transformer TA, trip coil KA and button SB constitute; 3 is the incoming telephone signal trigger, by C 3, R 5And V 5Constitute; 4 is the over-and under-voltage detector, by resistance R 6, R 7, R 8, R 9, R 10, R 11, R 12, capacitor C 4, C 5, C 6, diode V 6And triode V 7, V 8, V 9, V 10Constitute.
When the user is transshipped, during short circuit accident, by the automatic power-off protection of air switch QF.When electric leakage or accident of human electric shock were taken place, zero-sequence transformer TA passed through diode V with detected signal 4And R 3Be passed to controllable silicon V 3The control utmost point, V 3Conducting makes tripping coil KA energize to trip, and air switch QF moves and cuts off the electricity supply.In overvoltage, undervoltage detector 4, when supply voltage is between overvoltage operating value and the low-voltage value, triode V 7End V 9Reverse breakdown (conducting), V 10Conducting and to make its collector potential be zero; When supply voltage is elevated to the protection value, triode V 7Reverse breakdown (conducting), V 8Collector potential is zero, V 10By and its collector potential is raise, then output signal triggers controllable silicon V 3Conducting, the KA energize to trip, QF moves and cuts off the electricity supply; When supply voltage is reduced to the protection value, V 9End V 10By collector voltage is raise, its output signal triggers V simultaneously 3Conducting, the KA energize to trip, QF moves and cuts off the electricity supply.In incoming telephone signal trigger 3, when the line power outage takes place when, C 3Pass through R rapidly 5Discharge, making two terminal potentials is zero; When sending a telegram here once more, pass through C 3The pulse signal instantaneous trigger V that forms 3Make its conducting, release KA action makes the automatic disjunction of QF, meanwhile C 3By precharge; When the closed QF of user switches on, owing to have only small signal code through R 5Be defeated by controllable silicon V 3, make V 3Still be in cut-off state, QF can normally closed energized.

Claims (3)

  1. The multipurpose man non-electricity protector that can thread off automatically when 1, sending a telegram here again after a kind of outage, it is by air switch, the detection of electrical leakage release, over-and under-voltage detector and incoming telephone signal trigger constitute, and it is characterized in that: the detection of electrical leakage release is by diode V 1, V 2, V 4, controllable silicon V 3, resistance R 1-R 4, capacitor C 1, C 2, zero-sequence transformer TA, trip coil KA constitutes, wherein, controllable silicon V 3The control utmost point with by capacitor C 3, resistance R 5And diode V 5The incoming telephone signal trigger that constitutes links to each other, simultaneously controllable silicon V 3The control utmost point again with by resistance R 6-R 12, capacitor C 4-C 6, diode V 6And triode V 7-V 10The over-and under-voltage detector that constitutes links to each other.
  2. The multipurpose man non-electricity protector that can thread off automatically when 2, sending a telegram here again after the outage according to claim 1 is characterized in that in the described incoming telephone signal trigger capacitor C 3With resistance R 5After the parallel connection again with diode V 5Be in series.
  3. The multipurpose man non-electricity protector that can thread off automatically when 3, sending a telegram here again after the outage according to claim 1 is characterized in that in the described over-and under-voltage detector triode V 10Collector electrode pass through R 11With C 4Anodal connection, V 10Emitter and C 4Negative pole links, at V 10Collector electrode and emitter between be connected with C 6, at V 10Collector electrode and base stage between be connected with C 5, at V 10Base stage and C 4Be in series with R between the positive pole 9And V 9, V 9Emitter and C 4Anodal connection, V 9Base stage and R 9Link; V 8Collector electrode and V 10Base stage connect V 8Emitter and C 4Negative pole connects, at V 8Base stage and emitter between be connected with R 10, R 7With R 8Tie point and V 7Emitter connect V 8Base stage and V 7Base stage be connected.
CNU2008200809035U 2008-02-18 2008-02-18 Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off Expired - Fee Related CN201163720Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200809035U CN201163720Y (en) 2008-02-18 2008-02-18 Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200809035U CN201163720Y (en) 2008-02-18 2008-02-18 Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off

Publications (1)

Publication Number Publication Date
CN201163720Y true CN201163720Y (en) 2008-12-10

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CNU2008200809035U Expired - Fee Related CN201163720Y (en) 2008-02-18 2008-02-18 Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102761096A (en) * 2011-04-28 2012-10-31 西门子公司 Undervoltage-overvoltage protection device and method
CN103094877A (en) * 2011-10-28 2013-05-08 西门子公司 Undervoltage-overvoltage protection device and method
CN108333952A (en) * 2017-01-20 2018-07-27 南宁富桂精密工业有限公司 Household electric appliance control method, household electric appliance control equipment and household electrical appliances

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102761096A (en) * 2011-04-28 2012-10-31 西门子公司 Undervoltage-overvoltage protection device and method
CN102761096B (en) * 2011-04-28 2015-10-14 西门子公司 Undervoltage-overvolprotection protection device and method
CN103094877A (en) * 2011-10-28 2013-05-08 西门子公司 Undervoltage-overvoltage protection device and method
CN103094877B (en) * 2011-10-28 2015-08-19 西门子公司 Undervoltage-overvolprotection protection device and method
CN108333952A (en) * 2017-01-20 2018-07-27 南宁富桂精密工业有限公司 Household electric appliance control method, household electric appliance control equipment and household electrical appliances

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081210

Termination date: 20150218