CN2261688Y

CN2261688Y - Automatic switch for power source in closet

Info

Publication number: CN2261688Y
Application number: CN 96208821
Authority: CN
Inventors: 李建平
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-23
Filing date: 1996-03-23
Publication date: 1997-09-03
Anticipated expiration: 2006-03-23

Abstract

The utility model relates to an automatic switch for a power source in a closet. A passage of a doorway is provided with a light source and the front and back of the passage of a doorway are provided with two photosensors side by side. The outsides of the photosensors are provided with cylindrical outer sleeves. The photosensors are connected with a control circuit. The utility model can realize that the utility model automatically switches on the power source of an electrical light and an exhaust fan when a person enters the closet, the utility model automatically switches off the power source of an electrical light and an exhaust fan and switches on a power source of an electromagnetic valve to flush, and the utility model can automatically switches off the power source of an electromagnetic valve after a flushing time.

Description

A kind of lavatory fully automatic electric source switch

The utility model is a kind of lavatory fully automatic electric source switch that utilizes light to judge people's direction of travel.

The electric light in lavatory is washed by water now, and exhaust also needs people to finish with hand, makes people unhygienic and inconvenient.

The purpose of this utility model is the direction of travel that provides a kind of people of judgement, judges that promptly the people enters or go out the fully automatic electric source switch in lavatory.

Described lavatory fully automatic electric source switch is equipped with a light source and front and back are equipped with two light-sensitive elements side by side at the doorway passage, and it is outer the tubular overcoat, makes its light signal that only can receive the light source change, and light-sensitive element connects control circuit.The people during by the doorway light-sensitive element receive the light signal of light source change successively.When the people went out, enters mouthful, light-sensitive element received the order difference of the light signal of light source change, and control circuit is to electric light, bath, and the mains switch of exhaust is done to connect and cut off accordingly.When realizing that the people enters the doorway, lavatory, connect the power supply of electric light and ventilating fan automatically, when the people walks out the doorway, lavatory, the power supply bath of cutting off the flat power supply of electric light and exhaust automatically and connecting electromagnetically operated valve, the automatic power supply that cuts off electromagnetically operated valve after bath a period of time.

The light signal that receives the light source change is installed before and after the light-sensitive element of the present utility model side by side.The people by the time light-sensitive element inevitable light signal that receive the light source change successively, and the direction difference of People's Bank of China, photosensitive tube receives the order difference of the light signal of light source change, for control circuit provides simple judgment signal.Described switch is specially adapted to the lavatory in public place and uses.

Fig. 1 circuit block diagram.

Fig. 2 circuit theory diagrams.

Fig. 3 scheme of installation.

The Y of Fig. 4 Fig. 3 is to view.

Fig. 5 scheme of installation.

The X of Fig. 6 Fig. 5 is to view.

The another kind of amplification circuit diagram of Fig. 7.

Embodiment one:

As shown in Figures 2 and 3, a side of doorframe 12 dress infrared emission tube 1, two

photodiodes

2,5 are also equipped in its opposite side front and back, and it respectively has shell-like shell 13,14.Photodiode 2 connects the base stage of the triode BG 1 of amplifying circuit 3, and photodiode 5 connects the base stage of the triode BG 2 of amplifying circuit 4.When

photodiode

2,5 received the light signal of infrared emission tube 1, the collector electrode of the collector electrode of the triode BG 3 of amplifying circuit 3, the triode BG 4 of amplifying circuit 4 was output as high level, on the contrary output low level.The H arrow is represented the direction of entering among Fig. 2, and when the people entered the doorway, the state of amplifying circuit 3,4 outputs was followed successively by:

State is 3 height (expression amplifying circuit 3 outputs are high level, below identical), 4 height 1..

State 2. 3 low (expression amplifying circuit 3 outputs are low level, below identical), 4 height.

State is 3. 3 low, 4 low.

State is 3 height, 4 low 4..

State is 3 height, 4 height 5..

When the people walked out the doorway, the state of its output was followed successively by:

State is 3 height, 4 height 6..

State is 3 height, 4 low 7..

State is 8. 3 low, 4 low.

State is 3 low, 4 height 9..

State is 3 height, 4 height 10..

The input of the NAND gate A1 of the output termination delay circuit 6 of amplifying circuit 3, another input of the NAND gate A1 of the output termination delay circuit 6 of amplifying circuit 4.State is 1. to state 2. the time, and the input that the output termination telegoniometer of amplifying circuit 3 is recalled the NAND gate A1 of the K end of JK flip-flop B1 of circuit 7 and delay circuit 6 becomes low level by high level.Another input of the J end of the JK flip-flop B1 of the output termination direction memory circuit 7 of amplifying circuit 4 and the NAND gate A1 of delay circuit 6 is by keeping high level.The JK flip-flop B1 clock pulse terminal (CP) of the output termination direction memory circuit 7 of the not gate A2 of delay circuit 6, behind the level equalization of the JK of the JK flip-flop B1 of direction memory circuit 7 end, produce one and become low level triggering level by high level, the input of the Q termination ventilating fan drive circuit 9 of the JK flip-flop B1 of direction memory circuit 7 becomes high level with the input with door A4 that connects electric light drive circuit 8 by low level, the relay J C1 of ventilating fan drive circuit 9 connects, the ventilating fan exhaust.When light luminance secretly to the current collection of the triode BG 5 of electric light drive circuit 8 very during high level, the relay J C 2 of electric light drive circuit 8 connects, electric light is bright.The input of the non-termination driving circuit for electromagnetic valve 10 of the Q of the JK flip-flop of direction memory circuit 7 becomes low level by high level, and the capacitor C 3 of driving circuit for electromagnetic valve 10 is prepared for relay J C3 connects by diode D3 discharge.2. to state 4. the time, the output of delay circuit 6 not gate A2 keeps low level to state.The output of the JK flip-flop B1 of direction memory circuit 7 remains unchanged.4. state fades to state 5. the time, and the output of the not gate A2 of delay circuit 6 becomes high level by low level, because the JK flip-flop B1 of direction memory circuit 7 jumps down along triggering, Q end and the non-end of Q of JK flip-flop B1 remain unchanged.

In like manner, the people walks out outside the doorway, state is 7. the time, the J end of the JK flip-flop B1 of direction memory circuit 7 is high level for low level, K end, the Q end of JK flip-flop B1 is low level, the input of ventilating fan drive circuit 9 and electric light drive circuit 8 is a low level, and the relay J C2 cut-out of the relay J C1 of ventilating fan drive circuit 9 and electric light drive circuit 8 stops exhaust and electric light does not work.The non-end of the Q of direction memory circuit 7 is a high level, capacitor C 3 chargings of driving circuit for electromagnetic valve 10, and relay J C3 connects, electromagnetically operated valve energising, bath.Capacitor C 3 charging currents from large to small, the level of the base stage of triode BG 8 becomes low level by high level, when being lower than the conducting voltage of triode BG8, relay J C3 cuts off, the electromagnetically operated valve no power, bath stops.All the other are with above-mentioned identical.

The people is during through the doorway, and when hand cut off the light of infrared emission tube 1 earlier, the capacitor C 1 of amplifying circuit 3 was by diode D1 charging, the collector electrode output low level of triode BG 3.When human body can not continuous cutting-off transmitting tube 1 light the time because the discharge time of capacitor C 1 is long, the collector electrode output maintenance low level of the triode BG3 of amplifying circuit 3 is moved nonstandard interference in the time of can eliminating the people through the doorway.

When pressing the K switch D1 of reset circuit 11, the reset terminal CL of the JK flip-flop of direction memory circuit 7 is a low level, and the Q end of JK flip-flop is low level, and the non-end of Q is a high level.

Embodiment two:

As Fig. 7 and shown in Figure 5, a side of doorframe 12 dress infrared emission tube 1, two

photodiodes

2,5 are also equipped in front and back, the same side, and it respectively has shell-like shell 13,14.Photodiode 2 connects the base stage of the triode BG9 of amplifying circuit 15, and photodiode 5 connects the base stage of the triode BG10 of amplifying circuit 16.Photodiode 2,5 receive infrared emission tube 1 when the light signal of human body reflection, the emitter of the emitter of the triode BG 9 of amplifying circuit 15, the triode B610 of amplifying circuit 16 is output as high level, on the contrary output low level.All the other are identical with embodiment one.

Being noted that increases modulation circuit and demodulator circuit in above-mentioned circuit, can make infrared emission tube 1 emission light modulated, improves the antijamming capability of circuit.

Photodiode can adopt phototriode or photo resistance.

Claims

1. lavatory fully automatic electric source switch, it is characterized in that the doorway passage is equipped with a light source (1) and front and back are equipped with two light-sensitive elements (2), (5) side by side, tubular overcoat (13), (14) are arranged outside it, make its light signal that only can receive light source (1) change, light-sensitive element (2), (5) connect control circuit.

2. by the described lavatory of claim 1 fully automatic electric source switch, it is characterized in that the doorway passage is equipped with a light source (1), two light-sensitive elements (2), (5) are housed before and after its opposite side side by side, tubular overcoat (13), (14) are arranged outside it, make its light signal that only can receive light source (1) change, light-sensitive element (2), (5) connect control circuit.

3. by the described lavatory of claim 1 fully automatic electric source switch, it is characterized in that the doorway passage is equipped with a light source (1), two light-sensitive elements (2), (5) are housed before and after its same side side by side, tubular overcoat (13), (14) are arranged outside it, make it only can receive the light signal of light source (1) through the human body reflection, light-sensitive element (2), (5) connect control circuit.