CN204809830U - Automatic shut -off means of power that using electricity wisely and lightning protection were hit - Google Patents

Abstract

The utility model discloses automatic shut -off means of power that using electricity wisely and lightning protection were hit belongs to can measure the automatic shut -off means of power who carries out automatic disconnection to the power of load according to the load current who sets for. Include to load supply circuit that the standby electric current signal circuit who gets the load turn -offs power supply circuit with the time delay, the standby electric current signal circuit that gets the load acquires load circuit's electric current size parametric signal through mutual -inductor F, and this parametric signal makes triode GB produce the on -off action, and whether the delay circuit that triode GB decision time delay was turn -offed among the power supply circuit starts work, and whether the zener diode D of delay circuit's time delay parameter decision on -off action electrically conducts with silicon controlled rectifier KK to it realizes turn -offing power supply circuit to make the time delay turn -off power supply circuit. The advantage: the power has been practiced thrift load W standby power consumption and has been prevented that load W is struck by lightning by automatic disconnection behind the delay time that load W stand -by time fall to set for, and the automatic disconnection power does not need someone the operation, convenient being suitable for.

Description

Electrical energy saving anti-lightning strike power supply automatically shuts down device

Technical field

The utility model belongs to the automatic power switch of family expenses, particularly can automatically shut down device by the load current amount of setting to the power supply that the power supply of load carries out automatically disconnecting.

Background technology

Electrical equipment is facilitate people also will open various electrical equipment at home at holding state, and when people are away from home time, the various electrical equipment in family all still remain on holding state, and the multiple electrical equipment of the whole family not only wastes electricity at holding state, and is very easily struck by lightning.But people are when being away from home or be difficult to again in bed evening all remember power cutoff, so after electrical equipment is in holding state certain hour, it is very important that the power supply of electrical equipment is automatically shut down at every turn.

Utility model content

The utility model provides a kind of standby current of electrical appliance, feedback delay switch off power is carried out to this electrical equipment, realize electrical energy saving and anti-lightning strike power supply automatically shuts down device.

Electrical energy saving anti-lightning strike power supply automatically shuts down device, comprises load supplying circuit, it is characterized in that: also comprise the standby current signal circuit 1 and delay switch off power circuit 2 that obtain load; The standby current signal circuit 1 getting load obtains the size of current parameter signal of load circuit by instrument transformer F, this parameter signal makes triode GB produce on-off action, triode GB determines whether the delay circuit in delay switch off power circuit 2 starts work, whether voltage stabilizing didoe D and the controllable silicon KK of the delay parameter determine switch effect of delay circuit conduct electricity, thus make delay switch off power circuit 2 realize turning off power circuit.

To load supplying circuit: the electric power incoming line of power to load W and power outlet are all equipped with K switch, these two K switch are the synchro switches opened simultaneously electric power incoming line and power outlet or close simultaneously, these two K switch with one manually and relay integral switch J be connected, make these two K switch be subject to this control that is manual and relay integral switch J simultaneously; Power supply electric power incoming line or power outlet on series connection an instrument transformer F primary coil;

Obtain the standby current signal circuit 1 of load: on the secondary coil to load W power supply circuits, be connected with a variable resistor R1, the variable resistance joint of this variable resistor R1 connects the base stage of a triode GB, and a termination of this variable resistor R1 connects the emitter of this triode GB;

Delay switch off power circuit 2: comprise three loops,

Be connected with two inputs of bridge rectifier Q at the load W two ends of load supplying circuit, two outputs of bridge rectifier Q are connected into the first power switching circuitry with the manual of load supplying circuit and relay integral switch J, controllable silicon KK;

This first power switching circuitry connects successively: the A output of bridge rectifier Q, manually and relay integral switch J, controllable silicon KK anode, controllable silicon KK negative terminal, bridge rectifier Q B output;

Second timing circuit connects successively: the B output of the A output of bridge rectifier Q, time delay resistance R2, delay capacitor C anode, delay capacitor C negative terminal, bridge rectifier Q;

The standby current signal controlling loop of the 3rd load connects successively: the emitter of the collector electrode of standby current signal circuit 1 triode GB, voltage stabilizing didoe D negative terminal, voltage stabilizing didoe D anode, silicon controlled trigger end N, controllable silicon KK negative terminal, this triode GB; The emitter of this triode GB also connects the B output of bridge rectifier Q; Also have a controlling resistance R3 one end to be connected between voltage stabilizing didoe D anode and silicon controlled trigger end N, this controlling resistance R3 other end is connected to the B output of bridge rectifier Q; Voltage stabilizing didoe D negative terminal is also connected with delay capacitor C anode;

In foregoing circuit:

The A output of bridge rectifier Q connects time delay resistance R2 and manual and relay integral switch J;

The B output of bridge rectifier Q connects variable resistor R1, the emitter of triode GB, delay capacitor C negative terminal, controlling resistance R3, controllable silicon KK negative terminal.

Load W normal electricity consumption: manually the electric power incoming line of power supply is communicated with power outlet, load W is opened to normal electricity consumption state, the secondary coil of instrument transformer F produces high voltage, the base stage of triode GB obtains high voltage from variable resistor R1, the collector and emitter conducting of triode GB, the loop of bridge rectifier Q output is: the B output of the A output of bridge rectifier Q, time delay resistance R2, triode GB, bridge rectifier Q.Electric current passes through from the triode GB that resistivity is minimum, without the voltage stabilizing didoe D that resistivity is maximum, controllable silicon KK is not triggered, first power switching circuitry is non-conductive, manual and relay integral switch J makes the electric power incoming line of power supply and mains switch K keep conducting, and load W keeps normal electricity consumption state.

The standby rear power supply of load W is switched off automatically: load supplying circuit, the standby current signal circuit 1 and the delay switch off power circuit 2 that obtain load all will work, make manually and relay integral switch J two mains switch K of the electric power incoming line of powering and power outlet are disconnected, like this, saved the standby electricity consumption of load W and prevented load W to be struck by lightning.Here is the course of work that power supply is switched off automatically:

Obtain standby current signal circuit 1 course of work of load: staff closes abnormal electricity consumption load W, but load is in holding state, the secondary coil of instrument transformer F produces low voltage, the base stage of triode GB obtains low voltage from variable resistor R1, the collector and emitter not conducting of triode GB.

The second timing circuit course of work: the output of bridge rectifier Q charges to delay capacitor C through time delay resistance R2, through after a while, namely after the delay time designed, when delay capacitor C is charged to and can punctures voltage stabilizing didoe D, voltage stabilizing didoe D conducting, electric current through voltage stabilizing didoe D enters controllable silicon KK from silicon controlled trigger end N, and controllable silicon KK is triggered and makes controllable silicon KK conducting.

The first power switching circuitry course of work: the first power switching circuitry conduction, make manually and relay integral switch J two K switch disconnections on the electric power incoming line of power supply and power outlet, load supplying circuit disconnects and power supply and load W is disconnected completely, like this, saved the standby electricity consumption of load W and prevented load W to be struck by lightning.First power switching circuitry conductive path is: the A output of bridge rectifier Q, manually and relay integral switch J, controllable silicon KK anode, controllable silicon KK negative terminal, bridge rectifier Q B output.

The advantage of utility model: when load W normal electricity consumption, two K switch on the electric power incoming line of power supply and power outlet keep conduction state forever, can not affect normal electricity consumption.When after the delay time that load W stand-by time falls to set, power supply is switched off automatically, save the standby electricity consumption of load W and prevented load W to be struck by lightning, auto power off not very important person's operation, people when being away from home or evening in bed can automatically cutting off power source, to be conveniently suitable for.

Change the resistance value size of variable resistor R1 or change the primary coil quantity of instrument transformer F, different load W standby currents can be made to realize the effect to switch setting setup parameter value to triode GB collector and emitter conducting or not conducting.

Change the capability value of delay capacitor C or the breakdown voltage value of voltage stabilizing didoe D, the different time delay deenergization time can be obtained.

Accompanying drawing explanation

Fig. 1 is circuit diagram of the present utility model.

In figure, 1 is that to obtain the standby current signal circuit, 2 of load be delay switch off power circuit.

Embodiment

Embodiment 1, electrical energy saving anti-lightning strike power supply automatically shuts down device

As Fig. 1, this power supply automatically shuts down device and comprises load supplying circuit, also comprises the standby current signal circuit 1 and delay switch off power circuit 2 of getting load;

To load supplying circuit: the electric power incoming line of power to load W and power outlet are all equipped with K switch, these two K switch are the synchro switches opened simultaneously electric power incoming line and power outlet or close simultaneously, these two K switch with one manually and relay integral switch J be connected, make these two K switch be subject to this control that is manual and relay integral switch J simultaneously; Power supply electric power incoming line or power outlet on series connection an instrument transformer F primary coil;

Obtain the standby current signal circuit 1 of load: on the secondary coil to load supplying circuit, be connected with a variable resistor R1, the variable resistance joint of this variable resistor R1 connects the base stage of a triode GB, and a termination of this variable resistor R1 connects the emitter of this triode GB;

Delay switch off power circuit 2: comprise three loops,

Be connected with two inputs of bridge rectifier Q at the load W two ends of load supplying circuit, two outputs of bridge rectifier Q are connected into the first power switching circuitry with the manual of load supplying circuit and relay integral switch J, controllable silicon KK;

This first power switching circuitry connects successively: the A output of bridge rectifier Q, manually and relay integral switch J, controllable silicon KK anode, controllable silicon KK negative terminal, bridge rectifier Q B output;

Second timing circuit connects successively: the B output of the A output of bridge rectifier Q, time delay resistance R2, delay capacitor C anode, delay capacitor C negative terminal, bridge rectifier Q;

The standby current signal controlling loop of the 3rd load connects successively: the emitter of the collector electrode of standby current signal circuit 1 triode GB, voltage stabilizing didoe D negative terminal, voltage stabilizing didoe D anode, silicon controlled trigger end N, controllable silicon KK negative terminal, this triode GB; The emitter of this triode GB also connects the B output of bridge rectifier Q; Also have a controlling resistance R3 one end to be connected between voltage stabilizing didoe D anode and silicon controlled trigger end N, this controlling resistance R3 other end is connected to the B output of bridge rectifier Q; Voltage stabilizing didoe D negative terminal is also connected with delay capacitor C anode;

In foregoing circuit:

The A output of bridge rectifier Q connects time delay resistance R2 and manual and relay integral switch J;

The B output of bridge rectifier Q connects variable resistor R1, the emitter of triode GB, delay capacitor C negative terminal, controlling resistance R3, controllable silicon KK negative terminal.

Claims (1)

1. electrical energy saving anti-lightning strike power supply automatically shuts down device, comprises load supplying circuit, it is characterized in that: also comprise the standby current signal circuit (1) and delay switch off power circuit (2) of getting load;

To load supplying circuit: the electric power incoming line of power to load W and power outlet are all equipped with K switch, these two K switch are the synchro switches opened simultaneously electric power incoming line and power outlet or close simultaneously, these two K switch with one manually and relay integral switch J be connected, make these two K switch be subject to this control that is manual and relay integral switch J simultaneously; Power supply electric power incoming line or power outlet on series connection an instrument transformer F primary coil;

Obtain the standby current signal circuit (1) of load: on the secondary coil to load supplying circuit, be connected with a variable resistor R1, the variable resistance joint of this variable resistor R1 connects the base stage of a triode GB, and a termination of this variable resistor R1 connects the emitter of this triode GB;

Delay switch off power circuit (2): comprise three loops,

Be connected with two inputs of bridge rectifier Q at the load W two ends of load supplying circuit, two outputs of bridge rectifier Q are connected into the first power switching circuitry with the manual of load supplying circuit and relay integral switch J, controllable silicon KK;

This first power switching circuitry connects successively: the A output of bridge rectifier Q, manually and relay integral switch J, controllable silicon KK anode, controllable silicon KK negative terminal, bridge rectifier Q B output;

Second timing circuit connects successively: the B output of the A output of bridge rectifier Q, time delay resistance R2, delay capacitor C anode, delay capacitor C negative terminal, bridge rectifier Q;

The standby current signal controlling loop of the 3rd load connects successively: the emitter of the collector electrode of standby current signal circuit (1) triode GB, voltage stabilizing didoe D negative terminal, voltage stabilizing didoe D anode, silicon controlled trigger end N, controllable silicon KK negative terminal, this triode GB; The emitter of this triode GB also connects the B output of bridge rectifier Q; Also have a controlling resistance R3 one end to be connected between voltage stabilizing didoe D anode and silicon controlled trigger end N, this controlling resistance R3 other end is connected to the B output of bridge rectifier Q; Voltage stabilizing didoe D negative terminal is also connected with delay capacitor C anode;

In foregoing circuit:

The A output of bridge rectifier Q connects time delay resistance R2 and manual and relay integral switch J;

The B output of bridge rectifier Q connects variable resistor R1, the emitter of triode GB, delay capacitor C negative terminal, controlling resistance R3, controllable silicon KK negative terminal.