CN217088222U

CN217088222U - Control device for delayed lamp turn-off

Info

Publication number: CN217088222U
Application number: CN202220891044.8U
Authority: CN
Inventors: 邓云; 杨杰海; 宋乐乐
Original assignee: Guangxi Vocational and Technical College
Current assignee: Guangxi Vocational and Technical College
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-29
Anticipated expiration: 2032-04-18

Abstract

The traditional single-control lighting switch is used for old houses, the lighting lamp needs to be turned off before sleeping, and then the old houses can walk to the bedside after being touched dark for a certain distance, so that the lighting mode brings inconvenience to life of people. The utility model provides a time delay control device who closes lamp, during the use with two output series connection access illumination return circuits of this device, the normal illumination of light when the switch is closed, after the switch divides the disconnection, the light can be delayed about a minute and then automatic extinguishes to solve the problem that people need feel dark after closing the lamp and walk the bedside. The utility model provides a controlling means of lamp is closed in time delay, the device' S circuit includes 555 integrated circuit U1, relay RL1, switch S1, resistance R1, electric capacity C1 and diode D1.

Description

Control device for delayed lamp turn-off

Technical Field

The utility model relates to a controlling means of light is closed in time delay belongs to applied electron technical field.

Background

Double-control switches are basically preset in bedrooms of newly-decorated houses nowadays, but traditional single-control lighting switches are used in many old houses, the lighting lamps need to be turned off before sleeping, and then people can go to the bedside after feeling dark for a certain distance, and the lamp turning-off mode brings inconvenience to life of people. In order to solve the problem, a room switch can be changed into a double-control mode, but a lot of capital is needed to be invested, and the original wall surface can be damaged, so that the integral attractiveness of the house is influenced. Therefore, there is a need to design a control device with a function of turning off the light in a delayed manner without changing the existing lighting line in a large scale, when the switch is turned off, the lighting lamp is not turned off immediately, but is turned off automatically after a delay of about one minute, so that the design can bring great convenience to the life of people, and meanwhile, the cost for transforming the line structure of a room can be saved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a time delay control device who turns off lamp to solve the unable problem that realizes the time delay and turn off the lamp of current single control lighting switch.

The utility model discloses the concrete technical scheme who takes as follows:

a control device for time-delay light turning off is characterized in that: the circuit of the device comprises a 555 integrated circuit U1, a relay RL1, a switch S1, a resistor R1, a capacitor C1 and a diode D1, wherein the 1 st pin of the 555 integrated circuit U1 is grounded, the 4 th pin and the 8 th pin are connected with a +5V power supply, the 2 nd pin and the 6 th pin are connected with one end of the switch S1, one end of the resistor R1 and the anode of the capacitor C1, and the 3 rd pin is connected with one end of a coil of the relay RL1 and the cathode of the diode D1; the other end of the resistor R1 is connected with a +5V power supply, the other end of the switch S1 and the negative electrode of the capacitor C1 are grounded, and the other end of the coil of the relay RL1 and the positive electrode of the diode D1 are grounded; the fixed contact and the normally open movable contact of the relay RL1 form a switch SW, and two ends of the switch SW are respectively led out to be used as two output ends of the device.

The utility model has the advantages that: during this controlling means who cuts off lamp with two output series connection access lighting circuit during the use, light normal illumination when switch S1 is closed, after switch S1 divides the disconnection, the light can delay again automatic extinguishes after about a minute to solve the problem that people need feel dark after cutting off the lamp and walk to the bedside, greatly made things convenient for people' S life. The device can be directly added on the existing lighting circuit, does not need to change the existing lighting circuit on a large scale, and has low cost and convenient reconstruction and construction.

Drawings

Fig. 1 is a circuit diagram of the control device for time-delay lamp turn-off.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the control device for time-delay turn-off of the lamp comprises a 555 integrated circuit U1, a relay RL1, a switch S1, a resistor R1, a capacitor C1 and a diode D1, wherein a 1 st pin of the 555 integrated circuit U1 is grounded, a 4 th pin and an 8 th pin are connected with a +5V power supply, a 2 nd pin and a 6 th pin are commonly connected with one end of the switch S1, one end of the resistor R1 and the anode of the capacitor C1, and a 3 rd pin is connected with one end of a coil of the relay RL1 and the cathode of the diode D1; the other end of the resistor R1 is connected with a +5V power supply, the other end of the switch S1 and the negative electrode of the capacitor C1 are grounded, and the other end of the coil of the relay RL1 and the positive electrode of the diode D1 are grounded; the fixed contact and the normally open movable contact of the relay RL1 form a switch SW, and two ends of the switch SW are respectively led out to be used as two output ends of the device.

When the control device for the delayed turn-off lamp is used, two output ends are connected into a lighting loop in series, when a switch S1 is closed, a pin 2 and a pin 6 of a 555 integrated circuit U1 are grounded, so that a pin 3 of the 555 integrated circuit U1 outputs a high level, a relay RL1 is attracted, and a lighting lamp L1 is lightened; when the switch S1 is disconnected, the +5V power supply starts to charge the capacitor C1 through the resistor R1, after the capacitor C1 is charged for about one minute, the voltage of the capacitor C1 rises and exceeds +3.4V, namely the voltage of the No. 2 pin and the No. 6 pin of the 555 integrated circuit U1 exceeds two thirds of the power supply voltage, so that the No. 3 pin of the 555 integrated circuit U1 outputs low level, the relay RL1 is released, the switch SW formed by the static contact and the normally open movable contact of the relay RL1 is disconnected, the illuminating lamp L1 is extinguished, and therefore the process of delaying light turn-off is achieved.

Claims

1. A control device for time-delay light turning off is characterized in that: the circuit of the device comprises a 555 integrated circuit U1, a relay RL1, a switch S1, a resistor R1, a capacitor C1 and a diode D1, wherein the 1 st pin of the 555 integrated circuit U1 is grounded, the 4 th pin and the 8 th pin are connected with a +5V power supply, the 2 nd pin and the 6 th pin are connected with one end of the switch S1, one end of the resistor R1 and the anode of the capacitor C1, and the 3 rd pin is connected with one end of a coil of the relay RL1 and the cathode of the diode D1; the other end of the resistor R1 is connected with a +5V power supply, the other end of the switch S1 and the negative electrode of the capacitor C1 are grounded, and the other end of the coil of the relay RL1 and the positive electrode of the diode D1 are grounded; the fixed contact and the normally open movable contact of the relay RL1 form a switch SW, and two ends of the switch SW are respectively led out to be used as two output ends of the device.