CN2276218Y - Intelligence domestic electric protector - Google Patents

Intelligence domestic electric protector Download PDF

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Publication number
CN2276218Y
CN2276218Y CN 96228791 CN96228791U CN2276218Y CN 2276218 Y CN2276218 Y CN 2276218Y CN 96228791 CN96228791 CN 96228791 CN 96228791 U CN96228791 U CN 96228791U CN 2276218 Y CN2276218 Y CN 2276218Y
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China
Prior art keywords
winding
resistance
capacitor
circuit
transformer
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Expired - Fee Related
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CN 96228791
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Chinese (zh)
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刁俊起
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Individual
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Individual
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Priority to CN 96228791 priority Critical patent/CN2276218Y/en
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Publication of CN2276218Y publication Critical patent/CN2276218Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an intelligence domestic electric protector whose structure is composed of a rated current setting circuit A, an electricity current setting circuit B and a switch control circuit C. The rated current setting circuit A, the electricity current setting circuit B and the switch control circuit C are connected in parallel. The intelligence domestic electric protector has the characteristis of reasonable design, simple structure, easy manufacture, small size, complete function, convenient operation, long service life, low cost, high safety, a plurality of functions, etc.

Description

Intelligent household electricity protector
The utility model relates to a kind of household electrical appliance, specifically a kind of intelligent household electricity protector.
For damage that prevents household electrical appliance and the life security of protecting resident's house person; in the lighting circuit of family, generally used power protector; all kinds of power protectors of prior art mainly divide earth leakage protective device; several big classes of overvoltage protector and short-circuit protector; but it is perfect not enough that the deficiency that these protectors in use exist is a function; use inconvenient; particularly night the household electricity circuit break down produce protection after; needing to use other illuminationss to throw light on to overhaul circuit restores electricity it; can not according to power load adjust rated operational current with adjust the earth leakage protective electric currents according to different electricity consumption occasions; automatically provide the illumination indication after having outage at present; and can with the intelligent household electricity protector that changes the earth leakage protective electric currents according to different electricity consumption occasions reported in literature and public use not arranged also according to the power load rated operational current of adjusting.
The purpose of this utility model provide a kind of have the household electricity circuit break down protected after; automatically illumination indication; and have according to the power load rated operational current of adjusting, with the intelligent household electricity protector of adjusting the earth leakage protective electric currents according to different electricity consumption occasions.
The purpose of this utility model realizes in the following manner; the rated current circuit A that adjusts is set in protector; leakage current adjust circuit B and automatic switch control circuit C; change and to protecting automatically with the voltage and current that is used for monitoring the household electricity circuit with electric line; as the voltage in the household electricity circuit or electric current changes and when surpassing a threshold value just the controllable silicon among the trigger switch control circuit C make its conducting; the pull-in winding that electric current flows through relay is cut off the electricity supply actuating of relay drive double-point double-throw switch; make the household electricity down circuitry; connecting lighting pilot lamp when double-point double-throw switch makes the household electricity down circuitry illuminates to make things convenient for the maintenance of power circuit it; after fault is got rid of, connect and drive double-point double-throw switch; household electricity circuit and civil power are connected, and lighting pilot lamp extinguishes.
Accompanying drawing 1 is the structural representation of intelligent household electricity protector;
Accompanying drawing 2 is the schematic block circuit diagram of intelligent household electricity protector.
Intelligence domestic electric protector of the present utility model is done in detail following with reference to Figure of description The ground explanation.
Intelligence domestic electric protector of the present utility model, its structure are by the rated current electricity of adjusting Adjust circuit B and ON-OFF control circuit C of road A, leakage current consists of, the rated current circuit of adjusting Adjust circuit B and ON-OFF control circuit C of A, leakage current connects together.
The rated current circuit A that adjusts is by transformer B 1, bridge rectifier Q 1, resistance R 6, R 7, potentiometer W 1, capacitor C 1And diode D 2Constitute bridge rectifier Q 1Ac input end and transformer B 1Winding L 2Phase also connects resistance R 6With potentiometer W 1Be serially connected in bridge rectifier Q 1The both positive and negative polarity output on, resistance R 7An end and the moving contact of potentiometer W join the other end and capacitor C 1, diode D 2Anodal and meet bridge rectifier Q 1Positive pole output and capacitor C 1Negative pole join.
The leakage current circuit B that adjusts is by transformer B 2Bridge rectifier Q 2, potentiometer W 2Resistance R 5Capacitor C 2, diode D 3Constitute potentiometer W 2, resistance R 5With transformer B 2Winding L 5Two ends be connected in series bridge rectifier Q mutually 2An ac input end and potentiometer W 2Moving contact join another ac input end and resistance R 5With transformer B 2Winding L 5Interface point join capacitor C 2Be attempted by bridge rectifier Q 2The both positive and negative polarity output on, capacitor C 2Negative pole simultaneously and adjust capacitor C among the circuit A of rated current 1Negative pole mutually and meet diode D 3Positive pole and capacitor C 2Anodal and connect capacitor C 2Negative pole and the rated current diode D among the circuit A that adjusts 2Negative pole and connect.
Control circuit C is by dpdt relay K, lighting pilot lamp L, pull-in winding B, capacitor C 3, resistance R 3, R 1, piezo-resistance R 2, push-button switch AN, transformer B 1Winding L 1, transformer B 2Winding L 3, L 4, controllable silicon BT and diode D 1Constitute, the moving contact of dpdt relay K and civil power A, B point join, fixed contact 2 and transformer B 1Winding L 1An end and pull-in winding B 3Phase also connects winding L 1Other end serial connection winding L 3Join fixed contact 4 series transformer B with the C point of alternating current output 2Winding L 4Join piezo-resistance R with alternating current output D point 2With fixed contact 4 and alternating current output point C mutually and meet push-button switch AN series resistor R 1With piezo-resistance R 2Two ends, lighting pilot lamp L and fixed contact 1,3 also meet the negative pole of controllable silicon BT and bridge rectifier Q 1, Q 2Cathode output end mutually and meet the positive pole serial connection pull-in winding B of controllable silicon BT 3Join capacitor C with fixed contact 1 3And resistance R 3Be attempted by the positive and negative end of controllable silicon BT, the control utmost point of controllable silicon BT and diode D 2, D 3Negative pole mutually and connect.
Embodiment: intelligent its processing and fabricating of household electricity protector of the present utility model is very simple and convenient, installs shown in the by specification accompanying drawing to make to get final product, and employed components and parts are the commercially available prod in the circuit, but as long as the errorless all operate as normal of welding.
The course of work of intelligent household electricity protector of the present utility model is:
1, overcurrent protection: when electric current flows through transformer B 1Winding L 1The time, winding L 2The sensor current signal that produces is through the whole device Q of bridge-type 1Rectification becomes direct current signal, through potentiometer W and resistance R 6Current limliting and capacitor C 1Filtering is again through diode D 2Send into the trigger electrode of controllable silicon BT, controllable silicon BT conducting when the signal of sensing exceeds the critical trigger value of controllable silicon BT, electric current flows through pull-in winding makes the action of dpdt relay K switch, civil power and lighting pilot lamp is connected, and disconnected with the household electricity circuit.Adjust potentiometer W 1Can limit faradic intensity, thereby change the size of rated current.
The protection of 2, leaking, getting an electric shock and the reliability of protector detect: when family's electricity consumption just often, the winding L of transformer 3, L 4In the current vector sum be zero, winding L 5Non-inductive electric current or induced signal output, when occurring leakage, electric shock in the circuit, transformer B 2Winding L 3, L 4Residual current appears, L 3, L 4In current vector and non-vanishing, winding L 5Have sensor current signal to produce, sensor current signal is through potentiometer W 2Current limliting bridge rectifier Q 2Rectification is through capacitor C 2Filtering is again through diode D 3The trigger electrode of input controllable silicon BT makes controllable silicon BT conducting, and the dpdt relay K switch is at pull-in winding B 3Down action of effect, make the household electricity down circuitry.Adjust potentiometer W 2Resistance can change the size of leakage current signal and then adjust the sensitivity of protector.
3, the analog detection of intelligent household electricity protector: push-button switch AN series resistor R 1With piezo-resistance R 2Two ends, piezo-resistance R 2With dpdt relay K switch fixed contact 4 and alternating current output point C mutually and connect, press the winding L that push-button switch AN can make transformer 5Leak shock signal triggering controllable silicon BT conducting is simulated in one of last generation, makes the pull-in winding B of dpdt relay K switch 3Action is to detect the sensitivity of protector.
4, overvoltage protection: piezo-resistance R 2With dpdt relay K switch fixed contact 4 and alternating current output point C mutually and connect, when line voltage surpasses critical voltage, piezo-resistance R 2Resistance sharply diminish; When voltage surpasses setting; Transformer B 2Winding L 5On have induced current to produce, the pull-in winding B of dpdt relay K switch 3Action, down circuitry protection is to avoid line voltage too high and household electrical appliance are damaged.
Intelligence domestic electric protector of the present utility model is compared with existing technology, and has design and closes Reason, simple in structure, be easy to the characteristics such as processing, little, easy to use, the one-object-many-purposes of volume, thereby, Have good value for applications.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.

Claims (4)

1. intelligent household electricity protector comprises rated current adjust circuit A, leakage current adjust circuit B and ON-OFF control circuit C, it is characterized in that rated current adjust circuit B and the ON-OFF control circuit C of circuit A, leakage current that adjust connects together.
2. intelligent household electricity protector according to claim 1 is characterized in that the rated current circuit A that adjusts is by transformer B 1, bridge rectifier Q 1, resistance R 6, R 7, potentiometer W 1, capacitor C 1And diode D 2Constitute bridge rectifier Q 1Ac input end and transformer B 1Winding L 2Phase also connects resistance R 6With potentiometer W 1Be serially connected in bridge rectifier Q 1The both positive and negative polarity output on, resistance R 7An end and potentiometer W 1Moving contact join the other end and capacitor C 1, diode D 2Anodal and meet bridge rectifier Q 1Positive pole output and capacitor C 1Negative pole join.
3. intelligent household electricity protector according to claim 1 is characterized in that the leakage current circuit B that adjusts is by transformer B 2Bridge rectifier Q 2, potentiometer W 2Resistance R 5Capacitor C 2, diode D 3Constitute potentiometer W 2, resistance R 5With transformer B 2Winding L 5Two ends be connected in series bridge rectifier Q mutually 2An ac input end and potentiometer W 2Moving contact join another ac input end and resistance R 5With transformer B 2Winding L 5Interface point join capacitor C 2Be attempted by bridge rectifier Q 2The both positive and negative polarity output on, capacitor C 2Negative pole simultaneously and adjust capacitor C among the circuit A of rated current 1Negative pole mutually and meet diode D 3Positive pole and capacitor C 2Anodal and connect capacitor C 2Negative pole and the rated current diode D among the circuit A that adjusts 2Negative pole and connect.
4. intelligent household electricity protector according to claim 1 is characterized in that control circuit C is by dpdt relay K, lighting pilot lamp L, pull-in winding B 3, capacitor C 3, resistance R 3, R 1, piezo-resistance R 2, push-button switch AN, transformer B 1Winding L 1, transformer B 2Winding L 3, L 4, controllable silicon BT and diode D 1Constitute, the moving contact of dpdt relay K and civil power A, B point join, fixed contact 2 and transformer B 1Winding L 1An end and pull-in winding B 3Phase also connects winding L 1Other end serial connection winding L 3Join fixed contact 4 series transformer B with the C point of alternating current output 2Winding L 4Join piezo-resistance R with alternating current output D point 2With fixed contact 4 and alternating current output point C mutually and meet push-button switch AN series resistor R 1With piezo-resistance R 2Two ends, lighting pilot lamp L and fixed contact 1,3 also meet the negative pole of controllable silicon BT and bridge rectifier Q 1, Q 2Cathode output end mutually and meet the positive pole serial connection pull-in winding B of controllable silicon BT 3Join capacitor C with fixed contact 2 3And resistance R 3Be attempted by the positive and negative end of controllable silicon BT, the control utmost point of controllable silicon BT and diode D 2, D 3Negative pole mutually and connect.
CN 96228791 1996-09-11 1996-09-11 Intelligence domestic electric protector Expired - Fee Related CN2276218Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96228791 CN2276218Y (en) 1996-09-11 1996-09-11 Intelligence domestic electric protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96228791 CN2276218Y (en) 1996-09-11 1996-09-11 Intelligence domestic electric protector

Publications (1)

Publication Number Publication Date
CN2276218Y true CN2276218Y (en) 1998-03-11

Family

ID=33906594

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96228791 Expired - Fee Related CN2276218Y (en) 1996-09-11 1996-09-11 Intelligence domestic electric protector

Country Status (1)

Country Link
CN (1) CN2276218Y (en)

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