CN87208416U - Power saving key controll delay switch - Google Patents

Abstract

The utility model discloses a power saving key control delay switch, which is designed for the power saving measure of 'turning off the light when leaving'. The switch is arranged at the inside of the door, started by the key card when entering the room; pulling out the key card when leaving the room, and the circuit of the light and the air conditioner is automatically cut after 1 minute until restarted. The utility model provides the power with synergic control of a mechanical electronic switch and a no radio frequency interference electronic switch, an automatic delay circuit and an automatic time keeping zero resetting circuit are arranged on the device, and a plurality of protective circuits such as a direct voltage doubling voltage stabilizing circuit, an overvoltage circuit, an over current circuit, and a short circuit are arranged on the device. The accommodation of the input voltage and the loading capability is larger. The utility model is suitable to the hotels and families, having the advantages of small size, and convenient operation.

Description

Power saving key controll delay switch

The present invention relates to a kind of indoor power supply circuit control electric switchgear.

The present invention is according to Patent Office of the People's Republic of China's utility model patent communique on September 3rd, 1986 the 2nd volume No. 36 (total No. 40) bulletin; A kind of key controll delay power down switch that develops on the basis of notification number GG86200385 application number 86200385 " economize on electricity flame damper " and come, it is the energy-conservation electric switch of a kind of modern times that the conservation measures according to " people puts out from lamp " designs, be particularly suitable for being installed in the inboard convenient place of door, open and close by the spoon board that is connected on the key.

The moving switch of existing spoon is merely a kind of mechanical type electric switch, though it is big to have bearing power, the distortionless advantage of mains waveform, but people from aspect from the room at closing time in addition, as long as the spoon board is pulled up, supply line just cuts off at once, and illuminator is also extinguished at once, can cause the inconvenience in the room process.In addition, because orientation and the small and exquisite particular requirement of volume that the moving switch of spoon is installed, if adopt another kind of complete solid electronic device to replace mechanical type electric switch mode, long-time load operation then exists the serious contradictory problems of bearing power and electronic device heat dissipation aspect to be difficult to solve, and most working methods of electronic device being taked generally to control the angle of flow, also can produce the environment radio frequency interference because of the sine-shaped cutting distortion of civil power, broadcast receiver around the influence, the work of television set, perhaps institute's load that connects such as illumination incandescent lamp prolongs disconnected phase aggravation and flashes, and the distortion severe patient can cause that also the TV set high-voltage that is connect is partly struck sparks etc.

The object of the present invention is to provide a kind of moving switch of spoon with delay cut-off function.When this switch uses, after the user inserts spoon board and starts, just can be as common Purely mechanical electric switch operate as normal, satisfy specified load capacity and the civil power sine wave does not produce distortion.The aspect is when the user pulls up spoon board from the room in addition, this power down switch has the ability that the delay time about a minute just cuts off the power supply automatically, both reached the power savings of " people puts out from lamp " like this, make the user still maintain normal power supply state in a moment again, so that finish some necessary operations when the room.And, prolong in the break time in this section, the condition of work that all electric equipments that operate as normal still can remain unchanged, as: maintenance normal band loading capability and assurance mains waveform are undistorted etc., guarantee the safety of power consumption equipment and power down switch itself and do not produce the environment electrical Interference.

Design feature of the present invention generally speaking is to be made of the collaborative work that combines of mechanical type electric switch.Carry out conversion of operation state between the two by the spoon board.The spoon board inserts when starting, and is born the power supply of whole power consumption equipments by the mechanical type electric switch.Extract a spoon bridge queen, transfer to by electronic switch and bear the work of prolonging the cut-off electricity.At the whole story during prolonging the cut-off electricity, solid state switch all is to take the complete sine-shaped no radio frequency interference working method of civil power, and equally with the normal power supply state has an equal load capacity.The function of delay cut-off is then realized by a kind of fastidious electronic delay circuit, provide timing controlled to electronic switch, delay time is once reaching, delay circuit cuts off the power supply electronic switch automatically, and realize the automatic return-to-zero of timing at once, make each time-delay to count, till off-position remains to always and restarts next time from null value.The direct current supply part of this device then adopts transformerless direct multiplication of voltage voltage stabilizing power supply, realizes that volume is small and exquisite, and can adapt to the extremely wide line voltage scope of application.The moving socket indicator light of its dessertspoon adopts self loop power supply mode, complete machine long-term work minimal power consumption, and this device also is provided with safeguard measures such as overvoltage, overload and short circuit, guarantees that indoor electric appliance is safe in utilization.

Accompanying drawing is a kind of enforcement circuit diagram of the said key controll delay power down switch of the present invention.The invention will be further described below in conjunction with accompanying drawing: this circuit comprises by capacitor C ₃, C ₂, resistance R ₆R ₇, rectifier diode D ₆, D ₇Voltage stabilizing didoe DZ ₂The direct multiplication of voltage voltage stabilizing circuit of forming; By resistance R ₅, light-emitting diode D ₂With rectifier diode D ₃, D ₄, D ₅The moving socket indicator light circuit of forming of spoon; By the spoon board, spoon board socket and sensitive switch are formed the spoon actuation mechanism of using with the conversion operating state (BOX), bidirectional triode thyristor BCR, transistor TR and resistance R ₂, R ₃The no radio frequency interference electronic switch of forming; By one-way SCR CR ₁, transistor GR ₁Voltage stabilizing didoe DZ ₁, capacitor C ₁And resistance R ₁And R form prolong deenergizing automatically; By rectifier diode D ₁, timing runback zero circuit that one-way SCR CR forms and relevant overvoltage, overcurrent, short-circuit protection circuit thereof.

Directly in the multiplication of voltage voltage stabilizing circuit, between the live wire input (Vin) and ground wire input (Vo) of civil power, civil power is directly through resistance R ₆Current limliting, capacitor C ₃Step-down, rectifier diode D ₆Branch road is (by way of D ₃, D ₄, D ₅Deng) and D ₇Branch road is made voltage multiplying rectifier, capacitor C ₂Filtering and voltage stabilizing didoe DZ ₂After the voltage stabilizing, produce the dc low-voltage burning voltage, be made for the DC power supply that this installs each circuit, wherein resistance R at (E) point and (F) ₉As capacitor C ₃Leakage discharge resistance, the rectification branch road of self is taken from the power supply of spoon board socket indicator light circuit, by diode D ₃, D ₄, D ₅The forward voltage drop that forms is through light-emitting diode D ₂Power supply, the resistance R of series connection is made the usefulness of brightness current limliting.When entering the room and needing starting switch, the spoon board socket of spoon board from spoon actuation mechanism BOX inserted, the lever arm of sensitive switch (K) just is pushed to normally opened contact (K-1) from normally-closed contact (K-2) and locates civil power and directly power to the load via (K-1) branch road from (K), (meet end Vout and Vo and connect load), this is a mechanical type electric switch supply power mode under normal state.When going out the room and needing stopcock, a spoon board is extracted from spoon actuation mechanism BOX, sensitive switch lever arm (K) just recovers with contact (K-2) contact, and civil power powers to the load via electronic switch BCR loop at this moment, prolongs the cut-off electricity condition so circuit enters.In the no radio frequency interference electronic switch loop, bidirectional triode thyristor BCR is as the master switch on mains-supplied road, through first anode T ₁With second plate T ₂Power to the load.Because the first anode T of BCR ₁G is serially connected in the collector loop of transistor TR with the control utmost point, the lever arm of sensitive switch (K) is in case just connect D.C. regulated power supply with contact (K-2) contact (P) point, provide base current by resistance R to transistor T R, the TR saturation conduction, BCR just obtains constant negative sense control utmost point trigger current, make BCR can guarantee triggering and conducting, eliminated the radio frequency interference that common sinusoidal wave clipping distortion caused at the zero crossover point place of civil power sine wave.Resistance R is as the usefulness of the adjustment of BCR trigger current.Automatically prolong in the deenergizing, when (P) point was connected D.C. regulated power supply, direct current was through resistance R ₁To capacitor C ₁Charging, charging voltage makes (Q) point voltage rise to voltage stabilizing didoe D about one minute ₂₁The voltage stabilizing value time, the base stage of transistor GR just flows through base current, makes the GR saturation conduction, the voltage on the emitter resistance R provides trigger current to the control utmost point G of one-way SCR CR, (conduction period is passed through resistance R to the CR triggering and conducting ₂Provide anode to keep electric current to one-way SCR.) at this moment (B) point voltage drop to point voltage at once near (F), transistor T R becomes cut-off state at once, the control electrode current of bidirectional triode thyristor BCR disappears thereupon, so BCR ends load outage.The time length of delay cut-off state is by resistance R ₁And capacitor C ₁Charge constant change.In timing runback zero circuit, when one-way SCR CR once triggering and conducting, capacitor C ₁On the electric charge that is filled with just via diode D ₁Release rapidly to CR, make capacitor C ₁Charged state moment return-to-zero is for delay cut-off next time is ready to initial condition.Owing to pass through R ₂Provide anode to keep electric current continuously to one-way SCR CR, thus off-position can remain to always restart next time till.Only restart generation in next time, sensitive switch lever arm (K) is pushed to contact (K-1) and locates, and (P) some direct voltage just disappears at this moment, and one-way SCR just reverts to cut-off state from conducting state.In addition, resistance R ₄Capacitor C ₄Series arm absorb holding circuit, fast acting fuse S as the overvoltage of bidirectional triode thyristor BCR ₃With BCR second plate T ₂Be in series, as the quick protection of prolonging when in the disconnected operating state process load short circuits taking place to BCR.Fuse S ₂Be serially connected in mains terminal and go into end (Vin), during as the load g-load to sensitive switch (K) and (K-1) contact and to the overcurrent protection of bidirectional triode thyristor BCR.Since direct-flow steady voltage directly by civil power through capacitor C ₃Step-down, the spy seals in fuse S ₁As capacitor C ₃The specific safety safeguard measure that the interior DC power supply of device is cancelled automatically and taked.The civil power scope of application of this device is from exchanging 150 volts to 250 volts.According to the choosing value of different elements, can directly drive 200 watts to 600 watts load with prolonging under the disconnected operating state in normal operating conditions.The overload protection scope is 2 times of nominal load power, about machine internal power loss half-watt.If the load end reconfiguration exchanges actuator accordingly, can expand load capacity to thousands of watts of scopes and undertake big capacity power supply such as air conditioner and water heater control.

The power saving key controll delay switch that the present invention relates to, compare with general simple mechanical formula or electronic switch, aspect the light-duty of particular requirement and small size restriction, this device has utilized the mode of mechanical type electric switch with the collaborative work of no Radio frequency interference electronic switch, both solved simple solid state switch insoluble contradiction aspect bearing power and heat dissipation when consumer powered for a long time, and guaranteed that thereby the sinusoidal wave undistorted power supply situation of civil power eliminated the electrical Interference that environment is caused, when simultaneously having realized again the user from the room after time-delay power supply in a moment the economize on electricity target of auto-breaking practicality, and have the timing of when outage from the state restoration function of return-to-zero, guaranteed frequently to prolong the identity of disconnected its timing. Extremely wide, the minimal power consumption of the adaptable line voltage scope of this device institute, volume are small and exquisite in addition, and are provided with overvoltage, overload, short circuit etc. and use security measures. Also can do elementary cell to this device and use, indirectly enlarge significantly load capacity, make and easy to use, be particularly suited for the hotel, hotel and family do the control of economizing on electricity of indoor key controll delay.

Claims (5)

1, a kind of key controll delay power down switch that includes transformation current rectifying and wave filtering circuit, direct multiplication of voltage voltage stabilizing circuit, relay circuit, overvoltage, overcurrent, short-circuit protection circuit and mechanical type electric switch; it is characterized in that this power down switch is provided with a spoon actuation mechanism between mechanical type electric switch and no radio frequency interference electronic switching circuit, do not have the radio frequency interference electronic switching circuit and then be provided with and prolong deenergizing and timing return-to-zero circuit automatically.

2, according to the said key controll delay power down switch of claim 1, its feature comprises spoon board and spoon board socket and built-in single-pole double throw sensitive switch thereof in said spoon actuation mechanism (BOX), and mains electricity input end (Via) is through fuse S ₂Lever arm (K) with sensitive switch is connected to (Z) point mutually, and its normally opened contact (K-1) is connected to (M) point mutually with civil power output (Vout), and its normally-closed contact (K-2) joins with (P) point that prolongs deenergizing automatically.

3,, it is characterized in that said no radio frequency interference electronic switching circuit by bidirectional triode thyristor BCR, transistor TR and resistance R according to the said key controll delay power down switch of claim 1 ₁, R ₃Form the first anode T of BCR ₁Be connected to (Z) point, second plate T ₂Through fuse S ₃Be connected to (M) point with civil power output (Vout), the control G of BCR joins the base stage of TR and resistance R with the collector electrode of TR ₂Be connected to (B) point mutually, emitter is through resistance R ₃Receive (F) point.

4,, it is characterized in that the said deenergizing of prolonging automatically is by resistance R according to the said key controll delay power down switch of claim 1 ₁And R, capacitor C ₁, voltage stabilizing didoe D ₂, transistor GR and one-way SCR CR form, resistance R ₁With capacitor C ₁Be serially connected with (P) point and (F) between.Voltage stabilizing didoe DZ ₁Negative pole with capacitor C ₁Positive pole be connected to (Q) point, DZ ₁Positive pole connect the base stage of transistor GR, the emitter of GR connects (F) point through resistance R, the collector electrode merchandiser of GR is to the second plate T of controllable silicon CR ₂With being connected to (B) point, the first anode T of CR ₁Connect (F) point, the control utmost point G of CR is connected to (W) point mutually with the emitter of GR.

5,, it is characterized in that said timing runback zero circuit is by crystal diode D according to the said key controll delay power down switch of claim 1 ₁Form crystal diode D with above-mentioned one-way SCR CR ₁Positive pole with electric capacity G ₁Positive pole be connected to (Q) point, D mutually ₁Negative pole connect the second plate of one-way SCR in (B) point.

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