CN103560049B - Timed automatically power-off energy-saving device - Google Patents

Abstract

The invention discloses a timing automatic power-off energy-saving device, which belongs to the technical field of power supply control, and includes a casing and electrical components installed in the casing; After the first and shunt contactor contacts, it is connected to the load; after the positive terminal C of the power input terminal is connected in series with the time control switch and the main circuit contactor coil, it is connected to the negative pole of the power input terminal; in the shunt control circuit, the positive pole of the power input terminal Connect the button switch and shunt contactor coil in series to the negative pole of the output terminal of the power supply; the invention automatically disconnects the power supply of the electrical equipment according to the set time under unattended conditions, avoiding waste of resources and reducing the cost of unattended environments. The potential danger of using electrical appliances is conducive to saving electricity and using electricity safely.

Description

A timing automatic power-off energy-saving device

technical field

The invention relates to the technical field of power supply control.

Background technique

Some existing electrical equipment, such as drinking fountains, water heaters, electric vehicle charging, etc., are generally carried out when no one is on duty for a period of time, and often forget to disconnect the power supply; Turning on the power will consume electricity for a long time, causing unnecessary waste of resources; at the same time, turning on the power for a long time will damage the electrical equipment, posing a safety hazard.

For example, as long as the water dispenser is connected to the power supply, no matter whether there are people using water, it will continue to circulate and heat; when no one is using water, it will repeatedly heat the water in the water storage tank to form what people call "thousand boiling water". It is unfavorable to health; long-term repeated power-on heating also wastes a lot of electric energy, shortening the service life of the water dispenser; in the state of no one for a long time, the power-on work of the water dispenser is prone to accidents. Electric vehicle battery charging is generally carried out in remote places such as basements and garages. Long-term charging of electric vehicle batteries will also cause waste of electric energy, and will greatly shorten the service life of the battery. There are also potential safety hazards, which can easily cause fires.

Contents of the invention

The technical problem to be solved by the present invention is to provide a timing automatic power-off energy-saving device, which automatically disconnects the power supply of electrical equipment according to the set time under unattended conditions, avoids waste of resources, and reduces the cost of using electrical appliances in unattended environments. Potential danger, conducive to saving electricity and using electricity safely.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A timing automatic power-off energy-saving device, which is characterized in that it includes a housing and electrical components installed in the housing; the electrical components include an air switch QF, a time control switch KT, a main circuit contactor KM1, a button switch SB, a shunt contact In the main control circuit, the positive pole of the power input end is connected in series with the air switch QF, the contactor of the main road contactor KM1, and the contactor of the shunt contactor KM2 in sequence, and then connected to the load; the positive pole of the power input end C is connected in series for time control After the switch KT and the main circuit contactor KM1 coil, connect to the negative pole N of the power input terminal; in the shunt control circuit, the positive pole of the power input terminal Connect the pushbutton switch SB in series and the coil of the shunt contactor KM2 to the negative pole of the output terminal of the power supply superior.

Further, the main circuit control circuit also includes a fuse FU, which is located on the line connected in series with the beginning of the positive pole C of the power input terminal, the time control switch KT, and the coil of the main circuit contactor KM1.

The shell includes a base and an upper cover, the electrical components are fixed on the base, and the upper cover is provided with a window for setting the time controller KT and a hole for pressing the button switch SB.

The principle of timing automatic power-off is:

In the main control circuit, the time control switch KT controls the opening or closing of the main contactor KM1 contact, turns on the time control switch KT, and sets the timing duration, the positive terminal C of the power input terminal, the fuse FU, the time control switch KT, the main A loop is formed between the coil of the main circuit contactor KM1 and the negative pole N of the power input terminal, and the contact of the main circuit contactor KM1 is controlled to be connected; in the branch control circuit, the button switch SB controls the opening or closing of the contact of the branch contactor KM2, press Down button switch SB, positive pole of power input terminal , push button switch SB, shunt contactor KM2 coil and negative pole of power output terminal A loop is formed in between, so that the contact of the shunt contactor KM2 is connected; and then the circuit enters the delayed disconnection state of the load; when the timing time of the time controller KT is reached, the contact of the main contactor KM1 is disconnected, and all circuits are fully If there is no connection, the load will be powered off.

The beneficial effect produced by adopting the above technical solution is that the present invention can be used as a delayed power-off switch for electrical equipment, the power supply time can be flexibly adjusted, and the power supply of electrical equipment can be automatically disconnected according to the set time under unattended conditions , to avoid waste of resources, and reduce the potential danger of using electrical appliances in an unattended environment; the device is small in size and easy to use, suitable for power supply control of daily electrical equipment, prolonging the service life of electrical appliances, and helping to save electricity and use electricity safely.

Description of drawings

Fig. 1 is a schematic diagram of the main circuit control circuit of the present invention;

Fig. 2 is a schematic diagram of the branch control circuit of the present invention;

Fig. 3 is a structural representation of the present invention;

Wherein, 1, base, 2, window, 3, loam cake, 4, hole.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1, 2 and 3, the present invention includes a device housing and electrical components installed on the housing; wherein the electrical components include an air switch QF, a time control switch KT, a fuse FU, a main circuit contactor KM1, and a push button switch SB , shunt contactor KM2; the shell includes a base 1 and an upper cover 3, and the electrical components are fixed on the base 1; the upper cover 3 is provided with a window 2 for setting the time controller KT and a hole 4 for pressing the button switch SB.

The connection method of the timing automatic power-off circuit is: in the main circuit control circuit, the positive pole of the power input terminal is connected in series with the air switch QF, the contactor of the main circuit contactor KM1, and the contactor of the shunt contactor KM2, and then connected to the load; the positive pole of the power supply input terminal After connecting the fuse FU, the time control switch KT and the main circuit contactor KM1 coil in series at the beginning of C, it is connected to the negative pole N of the power input terminal; in the shunt control circuit, the positive pole of the power input terminal Connect the pushbutton switch SB in series and the coil of the shunt contactor KM2 to the negative pole of the output terminal of the power supply superior.

When the present invention is in use, close the air switch QF, press the button switch SB and the time control switch KT, and set the timing duration; the positive terminal C of the power input terminal, the series fuse FU, the time control switch KT, the main circuit contactor KM1 coil and A loop is formed between the negative poles of the power input terminal N, so that the contacts of the main circuit contactor KM1 are connected; in the shunt control circuit, the positive pole of the power input terminal Connect the button switch SB in series, the shunt contactor KM2 coil and the negative pole of the power output terminal A circuit is formed in between, so that the contactor KM2 of the shunt contactor is connected; then the circuit enters the state of delay disconnection of the load; when the timing time of the time controller KT is reached, the contactor KM1 of the main circuit contactor is disconnected, and all circuits are fully If there is no connection, the load will be powered off.

The invention can be used as a time-delayed power-off switch for electrical equipment, and the power supply time can be flexibly adjusted, and the power supply of the electrical equipment can be automatically disconnected according to the set time in the case of unattended, so as to avoid waste of resources and reduce the unattended environment Reduce the potential danger of using electrical appliances, which is conducive to saving and safe use of electricity.

Claims (3)

1. A timing automatic power-off energy-saving device, characterized in that it comprises a housing and electrical components installed in the housing; the electrical components include air switch QF, time control switch KT, main circuit contactor KM1, push button switch SB, branch Road contactor KM2; in the main road control circuit, the positive pole of the power input terminal is connected in series with the air switch QF, the main road contactor KM1 contact, and the shunt contactor KM2 contact in sequence, and then connected to the load; After controlling the switch KT and the coil of the main circuit contactor KM1, connect it to the negative pole N of the power input terminal; in the shunt control circuit, after connecting the positive pole L' of the power input terminal in series with the button switch SB and the coil of the shunt contactor KM2, connect it to the output terminal of the power supply On the negative pole N'; Close the air switch QF, press the button switch SB and the time control switch KT, and set the timing duration; the positive terminal C of the power input terminal, the series fuse FU, the time control switch KT, the main circuit contactor KM1 coil and the negative terminal N of the power input terminal A loop is formed between the main road contactor KM1 contacts; in the shunt control circuit, the positive pole L' of the power input end is connected in series with the button switch SB, the coil of the shunt contactor KM2 and the negative pole N' of the power output end form a loop. Make the contact of the shunt contactor KM2 turn on; then the circuit enters the delayed disconnection state for the load; when the timing time of the time controller KT is reached, the contact of the main circuit contactor KM1 is disconnected, all circuits are disconnected, and the load power off. 2. A timing automatic power-off energy-saving device according to claim 1, characterized in that the main circuit control circuit includes a fuse FU, and the fuse FU is located at the beginning of the positive pole C of the power input terminal and the time control switch KT, the main circuit The contactor KM1 coil is connected in series. 3. A timing automatic power-off energy-saving device according to claim 1, characterized in that the housing includes a base (1) and an upper cover (3), the electrical components are fixed on the base (1), and the The upper cover (3) is provided with a window (2) for setting the time control switch KT and a hole (4) for pressing the button switch SB.