KR20120124014A - Power Saving Multitap - Google Patents

Abstract

PURPOSE: A power saving multi-tap is provided to maintain a power saving function and to manufacture a multi-tap receptacle while minimizing volume of a control unit by omitting an AC/DC converting unit. CONSTITUTION: If a main power source is turned on, a power source inducing unit(110) obtains induced current from a power supply line. A light emitting unit(120) is radiated by power of the power inducing unit. If the light of the light emitting unit is received, a resistance of a photoconductive unit(130) is reduced. A relay switch unit(140) operates a switch by the power. The relay switch unit turns on the power supplied from the power supply line.

Description

Power Saving Multitap

The present invention relates to a power-saving outlet, and more particularly, to a power outlet having a built-in device for reducing the standby power by automatically turning off the power of the main device and at the same time.

The main devices that are frequently used in daily life include computers, TVs, and the like. When the main device is a computer, the peripheral device may be a monitor, a printer, a speaker, a modem, a router, and the like. When the main device is a TV, the peripheral device may be a video, a DVD, a home theater, or an IP-TV converter. .

In most cases, the user ends the operation of controlling the power by simply turning off the power of the main device after using the computer or the TV. However, in order to cut off the standby power of the peripheral device, the power of the monitor or DVD, which is the peripheral device, must be controlled in some way (manual, remote control, timer, remote control, etc.), but standby power is cut off. It is not possible to extend the peripherals to control all the power of the peripherals.

At this time, peripheral devices are in a state where standby power is turned on, which causes waste of standby power.

In order to solve such a problem, in the related art, a means for automatically shutting down the entire power supply when the main device is turned off is provided.

Patent No. 871672 (2008.11.26) has been issued, the registered patent is "connected to the main socket to adjust the operation threshold according to the power consumption of the main device to reduce the generation of the power operation threshold during normal operation, if necessary, sub-socket The present invention relates to a power-saving multi-outlet and a driving method thereof which eliminates the operation threshold function.

Patent Publication No. 115964 (Nov. 13, 2006), which discloses, “When the outlet is fastened by screwing and connected, it is easy to assemble and the like, and the load current is detected and judged when the electronic device connected to another outlet is in the standby state. The power supply is automatically cut off and the load detection value can be set variably even when the electronic devices with different power factor are connected. Outlets to prevent power consumption ”.

Patent Publication No. 993569 (2009.9.2), which discloses a “power saving circuit unit for supplying or cutting off power according to a load current for an connected electric device; A mode setting unit configured to set the power saving circuit unit to operate in any one of an automatic mode, a manual mode, and an optional automatic mode; A signal input unit mounted on the provided jack connection unit and configured to input an operation signal to the power saving circuit unit so that the blocked power is supplied or the supplied power is cut off; And a switching switch unit which is operated in a push or lever type to forcibly supply or cut off power, wherein the power saving circuit unit switches input power to be supplied to or cut off from the electric device, and the signal input unit is connected to the jack connection unit. When detached from the switch unit for shutting off the power at all times; A load current sensing unit configured to input a load signal by sensing a load current according to an operation state of the electric device; And a control unit for controlling the operation of the switch unit in response to at least one of a mode set by the mode setting unit, the load signal, and an operation signal of the signal input unit.

The patents have attained the object of the invention. However, since the AC / DC converter converts an AC current into a DC current in order to operate a transistor, a diode, and the like of the sensing unit, the size of the entire outlet is large because the volume occupied by the controller for operating the relay is large; High production cost and failure rate due to the use of many parts; An abnormal voltage such as a lightning strike may adversely affect a circuit formed of ICs or transistors of the controller; The generation of electromagnetic waves is large due to the relay operation by oscillation or semiconductor.

The present invention,

It can operate the relay with the AC AC power source and minimize the volume of the control unit to maintain the power saving function, while the outlet can be made as small as conventional; The number of parts can be minimized and the failure rate can be reduced by simplifying the parts; Since no IC, transistor, etc. are used, there is no influence on lightning or abnormal voltages; Since the relay does not operate by oscillation or semiconductor, it is intended to provide a power-saving power strip outlet without generating electromagnetic waves.

In order to achieve the above object, the present invention,

It includes a plurality of power connector and at least one of the power connector to supply the main power and at least one of the remaining to supply the peripheral power,

A power induction unit configured to obtain an induced current when the main power is turned on;

A light emitting unit which receives light from the power induction unit and emits light;

A photoconductive unit which turns on the power to operate the relay switch by reducing the resistance when receiving the light of the light emitting unit;

A relay switch unit which switches on the power to be supplied to the surrounding power by switching on the power turned on by the photoconductive unit;

.

Therefore, it is possible to open and close the operation of the relay by a direct current (AC) power supply.

According to the present invention,

The AC / DC converter may not be used, thereby minimizing the volume of the control unit, thereby minimizing the power saving function while maintaining a power outlet function as small as conventional; The number of parts can be minimized; Simplification of parts reduces the failure rate; Since no IC, transistor, etc. are used in the control circuit, there is no influence on lightning or abnormal voltages; No electromagnetic wave generation since no relay operation with oscillation or semiconductor; It is possible to provide a power-saving power strip.

Fig. 1 External perspective view of the power strip
2 internal wiring diagram

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 illustrates the external appearance of a power strip. In general, the power strip constitutes two or more power connectors 30: 31, 32, 33, 34,... Power is supplied from the cord (co) and the power supply line (20). In this process, if a power saving switch for opening and closing the power of the power connector is added, the effort of unplugging the plug can be reduced.

2 shows that when the main power (main) for supplying power to the main device is turned on, the peripheral power (sub) for supplying power to the peripheral device is also turned on at the same time. It shows a circuit of the invention for operating to be off to implement a power saving function.

The main power supply connector 31 and the peripheral power supply connector 32, 33, 34 to illustrate the main power supply from the power supply line 20 extending from the power cord (co).

More specifically,

At least one of the power connector to supply the main power and at least one of the remaining to supply the peripheral power,

A power induction unit 110 which obtains an induced current from the power supply line when the main power is turned on;

A light emitting unit 120 which receives power from the power induction unit and emits light;

A photoconductive unit (130) for turning on the power to operate a relay switch from the power supply line by reducing resistance when the light of the light emitting unit receives light;

A relay switch unit 140 that switches on power to be turned on by the photoconductive unit to turn on power to be supplied to peripheral power from the power supply line;

It illustrates the present invention consisting of.

From here,

The power induction part is configured by applying CIT (CT, cable through type) to the power supply line, and sends the current generated by the induced when the user turns on the main power supplied by the alternating current to the light emitting unit. This is to detect that the main power is turned on.

As the light emitting unit, an element such as an LED capable of converting the current into light energy and a photo diode is used, and an LED having high brightness is preferable. In this case, a capacitor 1 and a zener diode 2 may be added to protect the circuit of the light emitting unit. For example, in the example of the drawing, a 4.5v zener diode was used to protect the photodiode.

As the photoconductive part, a semiconductor photo sensor using a photo conductive effect in which a resistance value decreases when exposed to light is used. The photosensors include sensors such as cadmium sulfide cells (CdS), cadmium selenide (CdSe), and cadmium selenide sulfide (CdS.Se), and are generally referred to as CDS.

The light emitting part and the photoconductive part are integrally combined in a sealed state together, and are referred to as PCT in the present invention. The piiti directly activates the relay.

If other components are used instead of the piston, the circuit is complicated, many parts are required, and the unit cost is high.

On the other hand, due to the characteristics of the CDS, it is desirable to select a component having a contact capacity 30A having a small AC relay play current (DC resistance value of 15K ohms or more) as part of component saving. If the DC resistance is low, it is difficult to start the CDS alone. If the contact capacity is small, it is not suitable to use high current for a long time.

And it can be configured through the manual switch (sw) between the photoconductive unit and the relay switch unit, at this time, the user can directly turn on and off the peripheral devices by manually opening and closing the peripheral power.

As described above and illustrated in the present invention is only one of many embodiments, it should be noted that the present invention includes other embodiments of the technical idea.

Power induction unit 110; Light emitting unit 120; Photoconductive unit 130; Relay switch unit 140

Claims (6)

In a multi-tap including a plurality of power connector,
At least one of the power connector to supply the main power and at least one of the remaining to supply the peripheral power,
A power induction unit configured to obtain an induced current when the main power is turned on;
A light emitting unit which receives light from the power induction unit and emits light;
A photoconductive unit which turns on the power to operate the relay switch by reducing the resistance when receiving the light of the light emitting unit;
A relay switch unit which switches on the power to be supplied to the surrounding power by switching on the power turned on by the photoconductive unit;
Power-saving power strip characterized in that it comprises a The method of claim 1,
The power induction part is configured as a CIT (CT, cable through type) on the power supply line to send a current generated when the user turns on the main power to the light-emitting power strip characterized in that The method of claim 1,
The light emitting unit is a power-saving power strip characterized in that a high brightness LED (LED), a photo diode (Photo diode) element is used The method of claim 1,
The photoconductive section is a power-saving power strip, characterized in that the CD (SdS) 5. The method according to any one of claims 1 to 4,
The light emitting unit and the photoconductive unit are combined together in a sealed state together with the PCT (PCT) is a power-saving multi-tap characterized in that the direct activation of the relay directly 5. The method according to any one of claims 1 to 4,
A power-saving power strip characterized in that the manual switch that can be opened and closed manually between the photoconductive portion and the relay switch of the power-saving power strip is configured.

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