CN207650933U - A kind of timing controlled alarm switch circuit - Google Patents

Abstract

The utility model discloses a kind of timing controlled alarm switch circuits, including power module, monostable pierce circuit, timer circuit and switching circuit, power module is separately connected monostable pierce circuit, timer circuit and switching circuit, monostable pierce circuit is also connected with timer circuit, and timer circuit is also connected with switching circuit.The utility model timing controlled alarm switch circuit uses regulated power supply function, voltage instability can be reduced to influence caused by control circuit, circuit realizes time control function using dual timer chip combination relay, and timing is conveniently adjusted, alarm module is also increased in circuit simultaneously, alarm is sent out while periodically terminating, therefore has the advantages that vdiverse in function, easy to use and performance is stablized.

Description

A kind of timing controlled alarm switch circuit

Technical field

The utility model is related to a kind of delay circuit, specifically a kind of timing controlled alarm switch circuit.

Background technology

With the continuous improvement of people's living standards, various household electrical appliance have been indispensable objects in people's life Product need to use intelligent control, wherein delays time to control is exactly most common function, can be in electric meal for some household electrical appliance It uses in the equipment such as pot, washing machine, water heater, brings great convenience to the intelligent life of people, but existing prolong When circuit is mostly complicated, has a single function, only there is simple delay function, user can not understand delayed data in time, Therefore to be improved.

Utility model content

The purpose of this utility model is to provide a kind of timing controlled alarm switch circuits, to solve in above-mentioned background technology The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions：

A kind of timing controlled alarm switch circuit, including power module, monostable pierce circuit, timer circuit and open Powered-down road, power module are separately connected monostable pierce circuit, timer circuit and switching circuit, monostable pierce circuit It is also connected with timer circuit, timer circuit is also connected with switching circuit.

Preferred embodiment as the utility model：The power module include resistance R7, voltage stabilizing chip IC3, rectifier bridge T and One end of filter capacitor C3, the resistance R7 connect capacitance C3 and 220V alternating current, the other end connection capacitance C3's of resistance R7 The port 1 of the other end and rectifier bridge T, the port 2 of rectifier bridge T connect the voltage input end IN and capacitance C8 of voltage stabilizing chip IC3, electricity Anode, the ground terminal of voltage stabilizing chip IC3, the port 4 of rectifier bridge T and the output end for holding the other end connection diode D2 of C8 are negative Pole, the cathode and output head anode of the output end OUT connection diodes D2 of voltage stabilizing chip IC3, the model of chip IC 3 LM7812。

Preferred embodiment as the utility model：The monostable pierce circuit includes chip IC 1, resistance R1, resistance R2 and loudspeaker B, timer circuit include chip IC 2, capacitance C5, resistance R6 and diode D1, switching circuit include diode D3, Relay K and load A, resistance R1, chip IC 1, loud speaker B and diode D1, which is characterized in that one end of the resistance R1 connects A fixation of connecting resistance R6, power supply VCC, a fixing end of potentiometer RP1, the sliding end of potentiometer RP1, potentiometer RP2 End, the pin 14 of the pin 10 of the pin 8 of the sliding end of potentiometer RP2, chip IC 1, chip IC 2, chip IC 2 and relay K Contact K-1, the pin 7 of the other end connection resistance R2 and chip IC 1 of resistance R1, the other end connection capacitance C1 of resistance R2, The pin 2 of chip IC 1 and the pin 6 of chip IC 1, the other end connection capacitance C2 of capacitance C1, capacitance C5, capacitance C6, capacitance C7, Relay K, the anode of diode D4, resistance R4, loud speaker B, the pin 7 of chip IC 2 and load A, the pin 5 of chip IC 1 connect The other end and resistance R3 of capacitance C2 are connect, the pin 3 of chip IC 1 connects the other end of loud speaker B, and the pin 4 of chip IC 1 connects The other end of the pin 4 of chip IC 2 and the pin 6 of chip IC 2, resistance R6 connects capacitance C4, and the other end of capacitance C4 connects core The pin 8 of piece IC2, the other end of the cathode connection relay K of diode D3, the pin 3 of chip IC 2 connect capacitance C7, current potential Another fixing end of device RP2 and the pin 12 of chip IC 2, the pin 11 of chip IC 2 connect pin 13, the capacitance of chip IC 2 The other end of C6 and another fixing end of potentiometer RP1, the other end connection load A's of the contact K-1 of relay K is another End.

Preferred embodiment as the utility model：The model NE555 of the chip IC 1.

Preferred embodiment as the utility model：The model NE556 of the chip IC 2.

Preferred embodiment as the utility model：The relay K is normally opened contact relay.

Preferred embodiment as the utility model：The diode D3 is light emitting diode.

Compared with prior art, the utility model has the beneficial effects that：The utility model timing controlled alarm switch circuit Using regulated power supply function, voltage instability can be reduced to influence caused by control circuit, circuit utilizes dual timer chip knot It closes relay and realizes time control function, and timing is conveniently adjusted, while also increasing alarm module in circuit, Timing sends out alarm while end, therefore has the advantages that vdiverse in function, easy to use and performance is stablized.

Description of the drawings

Fig. 1 is the circuit diagram of timing controlled alarm switch circuit.

Fig. 2 is the circuit diagram of power module.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Please refer to Fig.1-2, in the utility model embodiment, a kind of timing controlled alarm switch circuit, including power module, Monostable pierce circuit, timer circuit and switching circuit, power module include resistance R7, voltage stabilizing chip IC3, rectifier bridge T With filter capacitor C3, monostable pierce circuit includes that chip IC 1, resistance R1, resistance R2 and loudspeaker B, timer circuit include Chip IC 2, capacitance C5, resistance R6 and diode D1, switching circuit include diode D3, relay K and load A, the resistance One end of R7 connects capacitance C3 and 220V alternating current, the end of the other end and rectifier bridge T of the other end connection capacitance C3 of resistance R7 Mouth 1, the port 2 of rectifier bridge T connect the voltage input end IN and capacitance C8 of voltage stabilizing chip IC3, the other end connection two of capacitance C8 The anode of pole pipe D2, the ground terminal of voltage stabilizing chip IC3, the port 4 of rectifier bridge T and negative pole of output end, the output of voltage stabilizing chip IC3 The cathode and output head anode of OUT connection diodes D2, the model LM7812 of chip IC 3 is held resistance R1, chip IC 1, to raise one's voice Device B and diode D1, which is characterized in that one end connection resistance R6 of the resistance R1, power supply VCC, one of potentiometer RP1 it is solid Fixed end, the sliding end of potentiometer RP1, a fixing end of potentiometer RP2, the sliding end of potentiometer RP2, chip IC 1 pin 8, the other end connection resistance R2 of the contact K-1 of the pin 10 of chip IC 2, the pin 14 of chip IC 2 and relay K, resistance R1 With the pin 7 of chip IC 1, other end connection capacitance C1, the pin 2 of chip IC 1 and the pin 6 of chip IC 1 of resistance R2, capacitance The other end connection capacitance C2 of C1, it capacitance C5, capacitance C6, capacitance C7, relay K, the anode of diode D4, resistance R4, raises one's voice Device B, the pin 7 of chip IC 2 and load A, the pin 5 of chip IC 1 connect the other end and resistance R3 of capacitance C2, chip IC 1 Pin 3 connects the other end of loud speaker B, and the pin 4 of chip IC 1 connects the pin 6 of the pin 4 and chip IC 2 of chip IC 2, electricity Hinder R6 the other end connect capacitance C4, capacitance C4 the other end connection chip IC 2 pin 8, diode D3 cathode connection after The other end of electric appliance K, the pin 3 of chip IC 2 connect the pin of another fixing end and chip IC 2 of capacitance C7, potentiometer RP2 12, the pin 11 of chip IC 2 connect the pin 13 of chip IC 2, the other end of capacitance C6 and potentiometer RP1 another fix End, the other end of the other end connection load A of the contact K-1 of relay K.

The operation principle of the utility model is：The circuit given in Fig. 1 is powered by power module, and entire lighting lamp circuit passes through Ups power is powered, and ups power physical circuit is as shown in Figure 2 comprising the capacitance-resistance voltage reduction circuit of resistance R7 and capacitance C3 compositions, Bridge type rectification circuit T, voltage stabilizing chip IC2, filter capacitor C2, zener diode D2 and standby battery E, power circuit is by 220V Line voltage be converted into 12V DC electricity output, and also have the function of dual power supply.Chip IC 1 in Fig. 1 and its outer Element composition monostable pierce circuit is enclosed, chip IC 2 and its peripheral cell form timer circuit, after power supply is connected, by It cannot be mutated in the current potential on C7, make timing circuit set, therefore 9 foot of output end of chip IC 2 exports high level, relay K It is electric, contact K-1 is attracted, and load A obtains electric, and 6 feet export low potential, and 4 feet of a chip IC 1 are low level, output end 3 Foot is low potential, and loud speaker B does not work, while chip IC 2 and starting timing, and timing is by potentiometer RP1 and capacitance C7 It determining, therefore adjust potentiometer RP1 to adjust timing, after timing, 9 feet of chip IC 1 export low level, Relay K is disconnected at this time, loads A dead electricity, while the 6 feet overturning of chip IC 2, and 4 feet of chip IC 1 obtain electric, and oscillator starts work Make, loud speaker B sends out alarm.

Claims (7)

1. a kind of timing controlled alarm switch circuit, including power module, monostable pierce circuit, timer circuit and switch Circuit, which is characterized in that power module is separately connected monostable pierce circuit, timer circuit and switching circuit, monostable Pierce circuit is also connected with timer circuit, and timer circuit is also connected with switching circuit.

2. timing controlled alarm switch circuit according to claim 1, which is characterized in that the power module includes resistance One end connection capacitance C3 and 220V alternating current of R7, voltage stabilizing chip IC3, rectifier bridge T and filter capacitor C3, the resistance R7, electricity The port 1 of the other end and rectifier bridge T of the other end connection capacitance C3 of R7 is hindered, the port 2 of rectifier bridge T connects voltage stabilizing chip IC3 Voltage input end IN and the anode of other end connection diode D2 of capacitance C8, capacitance C8, voltage stabilizing chip IC3 ground terminal, The port 4 of rectifier bridge T and negative pole of output end, the cathode of the output end OUT connection diodes D2 of voltage stabilizing chip IC3 and output are rectified Pole, the model LM7812 of chip IC 3.

3. timing controlled alarm switch circuit according to claim 1, which is characterized in that the monostable pierce circuit Including chip IC 1, resistance R1, resistance R2 and loudspeaker B, timer circuit includes chip IC 2, capacitance C5, resistance R6 and diode D1, switching circuit include diode D3, relay K and load A, resistance R1, chip IC 1, loud speaker B and diode D1, spy Sign is that one end of the resistance R1 connects resistance R6, power supply VCC, a fixing end of potentiometer RP1, the cunning of potentiometer RP1 Moved end, a fixing end of potentiometer RP2, the sliding end of potentiometer RP2, the pin 8 of chip IC 1, chip IC 2 pin 10, The other end of the pin 14 of chip IC 2 and the contact K-1 of relay K, resistance R1 connect the pin 7 of resistance R2 and chip IC 1, electricity Other end connection capacitance C1, the pin 2 of chip IC 1 and the pin 6 of chip IC 1 of R2 are hindered, the other end of capacitance C1 connects capacitance The pin 7 of C2, capacitance C5, capacitance C6, capacitance C7, relay K, the anode of diode D4, resistance R4, loud speaker B, chip IC 2 With load A, the pin 5 of chip IC 1 connects the other end and resistance R3 of capacitance C2, and the pin 3 of chip IC 1 connects loud speaker B's The other end, the pin 4 of chip IC 1 connect the pin 6 of the pin 4 and chip IC 2 of chip IC 2, the other end connection electricity of resistance R6 Hold C4, the pin 8 of the other end connection chip IC 2 of capacitance C4, the other end of the cathode connection relay K of diode D3, chip The pin 3 of IC2 connects capacitance C7, another fixing end of potentiometer RP2 and the pin 12 of chip IC 2, the pin 11 of chip IC 2 Connect pin 13, the other end of capacitance C6 and another fixing end of potentiometer RP1 of chip IC 2, the contact K-1 of relay K The other end connection load A the other end.

4. timing controlled alarm switch circuit according to claim 3, which is characterized in that the model of the chip IC 1 NE555。

5. timing controlled alarm switch circuit according to claim 3, which is characterized in that the model of the chip IC 2 NE556。

6. timing controlled alarm switch circuit according to claim 3, which is characterized in that the relay K is normally opened touches Point relay.

7. timing controlled alarm switch circuit according to claim 3, which is characterized in that the diode D3 is luminous two Pole pipe.