CN211089629U

CN211089629U - Time delay switch controller circuit

Info

Publication number: CN211089629U
Application number: CN202020202186.XU
Authority: CN
Inventors: 段瑞华
Original assignee: Zhongshan Lewei Electronic Technology Co ltd
Current assignee: Zhongshan Lewei Electronic Technology Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-07-24
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a time delay switch controller circuit, including exchanging touch switch circuit, power conversion circuit and time delay control circuit, exchange touch switch circuit and include thyristor Q1, touch button and relay K, power conversion circuit includes transformer W and rectifier bridge T, and time delay control circuit includes diode D1, triode V1, relay K and electric capacity C2, and relay K's normally open contact K-1 and 220V alternating current one end are connected to thyristor Q1's one end. The utility model discloses time delay switch controller circuit structure is simple, components and parts are few, only use a small number of electronic component to constitute, therefore small, and the cost of manufacture is lower, and the circuit has time delay control's function, and has still set up heat-sensitive element, can accomplish temperature protection, for example provide temperature protection when alternating current motor is overheated, consequently have convenient to use, practice thrift electric energy and the manifold advantage of function.

Description

Time delay switch controller circuit

Technical Field

The utility model relates to an electronic switch technical field specifically is a delay switch controller circuit.

Background

The electronic switch is the most commonly used electronic device in daily life, and from the most basic socket to the high-end intelligent home controller, the body shadow of the electronic switch cannot be left, and with the development of science and technology, various intelligent electric devices are also endlessly provided, but not all household appliances have the functions desired by the user, for example, the delay function is the most convenient and practical function, and the delay function needs to be realized by means of the electronic switch.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a delay switch controller circuit to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

A delay switch controller circuit comprises an alternating current touch switch circuit, a power supply conversion circuit and a delay control circuit, wherein the alternating current touch switch circuit comprises a thyristor Q1, a touch key and a relay K, the power supply conversion circuit comprises a transformer W and a rectifier bridge T, the delay control circuit comprises a diode D1, a triode V1, a relay K and a capacitor C2, one end of the thyristor Q1 is connected with one ends of normally-open contacts K-1 and 220V alternating current of the relay K, the other end of the normally-open contact K-1 of the relay K is connected with the other end of the thyristor Q1, an alternating current load L and a winding N1 of the transformer W are connected, a control electrode of the thyristor Q1 is connected with the touch switch, the other end of a winding N1 of the transformer W is connected with the other end of the alternating current load L and the other end of the 220V alternating current, two ends of a winding N2 of the transformer W are respectively connected with a port 1 of the rectifier bridge T and a port 3 of the rectifier bridge T, a winding N2 of the transformer W is connected with a capacitor C1, a cathode of a diode D1 and the other end of the relay K, the other end of the relay K is connected with an emitter of the relay K9, a resistor R862 of the relay K-V862 of the relay K, the relay K-resistor R865 of the relay W is connected with an emitter of the triode R3 of the transistor R865, and a resistor R865 of the other end of the resistor R.

As the preferred scheme of the utility model: the thyristor Q1 is a bidirectional thyristor.

As the preferred scheme of the utility model: the resistor R3 is a thermistor.

As the preferred scheme of the utility model: the diode D1 is a zener diode.

As the preferred scheme of the utility model: the capacitor C1 is a farad capacitor.

As the preferred scheme of the utility model: the triode V1 is an NPN triode.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses time delay switch controller circuit structure is simple, components and parts are few, only use a small number of electronic component to constitute, therefore small, and the cost of manufacture is lower, and the circuit has time delay control's function, and has still set up heat-sensitive element, can accomplish temperature protection, for example provide temperature protection when alternating current motor is overheated, consequently have convenient to use, practice thrift electric energy and the manifold advantage of function.

Drawings

Fig. 1 is a circuit diagram of a delay switch controller circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a delay switch controller circuit includes a relay K, a switch S1, a switch S2 and a triode V1, one end of the switch S1 is connected to the switch S2, and ac power is supplied to normally open contacts K-1 and 220V of the relay K, the other end of the normally open contact K-1 of the relay K is connected to the other end of the switch S1, the other end of the switch S2, a lamp H and a winding N1 of a transformer W, the other end of a winding N1 of the transformer W is connected to the other end of the lamp H and the other end of the ac power of 220V, two ends of a winding N2 of the transformer W are respectively connected to a port 1 of a rectifier bridge T and a port 3 of the rectifier bridge T, a winding N2 of the transformer W is connected to a capacitor C1, a cathode of a diode D1 and the relay K, the other end of the relay K is connected to a capacitor C2, a normally closed contact K-2, the other end of a normally closed contact K-2 of the relay K is connected with a resistor R1, the other end of a resistor R1 is connected with a base electrode of a triode V1, the other end of a capacitor C2 and a resistor R3, the other end of a resistor R3 is connected with the other end of a capacitor C1, a resistor R2 and a port 4 of a rectifier bridge T, and an emitting electrode of the triode V1 is connected with the other end of a resistor R2.

Both the switch S1 and the switch S2 are tact switches. The resistor R3 is a thermistor.

the working principle of the utility model is that when in use, a hand contacts the touch key, the control electrode of Q1 is electrified and conducted, the 220V voltage supplies power to the load L on the one hand, on the other hand, the voltage is reduced through the transformer W, the rectifier bridge T rectifies and the electric capacity C1 filters, the power is supplied to the circuit, because the voltage at the two ends of the electric capacity C2 can not be suddenly changed, the charging is carried out under the initial state of electrification, the voltage is added to the base of the triode V1 through the voltage of the relay K and the electric capacity C2, the relay K electric loop is connected, the normally open contact K-1 attracts, the circuit is self-locked, the K-2 is disconnected, the hand leaves the touch key in time, the circuit can normally work, the electric capacity C2 rises along with the voltage of the charger continuously, the equivalent impedance rises, after the C2 is fully charged, the base voltage of the triode V1 is cut off, therefore, the V1 is disconnected, the relay K-1 loses electricity, the contact K-1 disconnects, the whole circuit is disconnected, the K-2 attracts, the capacitor C2 attracts, the C2 discharges.

embodiment 2 on the basis of embodiment 1, the resistor R3 of the present design is a thermistor, the resistance value of the resistor R3 decreases with the increase of temperature, and since the resistance value of the resistor R3 defines the base voltage of the transistor V1, the base voltage of the transistor V1 decreases with the decrease of the resistance value of the resistor R3, when the temperature is higher than a certain limit, the base voltage of the transistor V1 is not enough to satisfy the on condition of the transistor V1, the transistor V1 is turned off, the relay K is de-energized, and the contact K-1 is thereby opened, and the load L is effectively protected, thereby achieving the purpose of temperature protection.

Claims

1. A time delay switch controller circuit comprises an alternating current touch switch circuit, a power supply conversion circuit and a time delay control circuit, and is characterized in that the alternating current touch switch circuit comprises a thyristor Q1, a touch key and a relay K, the power supply conversion circuit comprises a transformer W and a rectifier bridge T, the time delay control circuit comprises a diode D1, a triode V1, a relay K and a capacitor C2, one end of the thyristor Q1 is connected with one end of a normally-open contact K-1 and one end of a 220V alternating current of the relay K, the other end of the normally-open contact K-1 of the relay K is connected with the other end of the thyristor Q1, an alternating current load L and a winding N1 of the transformer W, a control electrode of the thyristor Q1 is connected with the touch switch, the other end of a winding N1 of the transformer W is connected with the other end of the alternating current load L and the other end of the 220V alternating current, two ends of the winding N2 of the transformer W are respectively connected with a port 1 of the rectifier bridge T and a port 3 of the rectifier bridge T, a winding N1 of the capacitor C1, a cathode of the diode D1 and the relay K, the other end of the relay K, the relay K is connected with a collector of the resistor R865, the collector of the relay K and a collector of the relay K847, the transistor R865 are connected with the triode R865, the transistor R865, the other end of the transistor R863 of the transistor R865 and.

2. The delay switch controller circuit of claim 1, wherein the thyristor Q1 is a triac.

3. The delay switch controller circuit of claim 1, wherein the resistor R3 is a thermistor.

4. The delay switch controller circuit of claim 1, wherein the diode D1 is a zener diode.

5. The delay switch controller circuit of any one of claims 1-4, wherein said capacitor C1 is a farad capacitor.

6. The delay switch controller circuit of claim 1, wherein the transistor V1 is an NPN transistor.