KR20110068245A - Apparatus for breaking standby power - Google Patents

Abstract

PURPOSE: A standby power breaking apparatus is provided to effectively break standby power waste by omitting a current sensor for sensing the use of a main device and a sub device. CONSTITUTION: An AC power supply unit(110) supplies AC power to at least one outlet. A port connection unit(120) is connected to a terminal port of a main device. An initial power supply unit supplies initial AC power to a first relay(131) and a second relay(132). A power supply unit(150) switches the initial AC power into DC power. A control unit(160) generates a first output signal supplied to the first relay and a second output signal supplied to the second relay.

Description

Apparatus for breaking standby power

The present invention relates to a standby power cut-off device, and more particularly, it is possible to omit a current sensor for detecting the use of the main device and the auxiliary device, the standby can efficiently cut off the unnecessary waste of standby power It relates to a power interruption device.

Due to high oil prices, interest in energy saving is increasing, and various energy saving methods are emerging for this purpose. In particular, in the digital age, the use of electronic products is increasing, and as electronic products are becoming larger, the power consumption of these products is continuously increasing.

As a way to reduce the power consumption of electronic products, the standby power consumed when the electronic products are not used attracts attention. In the government, in order to minimize the power consumed by the standby power of electronic products, The standby power warning label has been implemented, and the standby power warning label has to be lowered to less than 1W.

In particular, some electronic products such as PCs and TVs are used in one set according to the use purpose. In other words, PCs are used in sets of monitors, printers, speakers, etc., and TVs are used in sets of pay-TV-only receivers (Set Top Box), VTRs, DVDs, and game consoles.

In this case, the PC will be connected to the same power outlet with the monitor, printer, and PC speakers, and the TV will be connected to the same power outlet with pay-TV receivers, VTRs, DVDs, speakers, and game consoles. The plug is used for connection.

In general, after using the PC, only the PC is turned off and the monitor, printer, and speaker are not turned off or the power is not cut even when the power is turned off. Therefore, standby power is continuously consumed. The reality is that the situation in which the power of the receiver or the like is not turned off or the standby power is kept being consumed continuously is repeated. Therefore, if you apply a plan in which other electronic products are turned on or off depending on the power-on or shutdown state of the PC or TV, you can save unnecessary power consumption.

However, the conventional standby power cut-off device developed to save power consumption is provided to include various sensors for determining the power consumption of various devices, and these devices can block standby power of various devices that are not used. However, since it consumes a separate power consumption in itself, there is a problem that it is difficult to efficiently lower the power consumption through the blocking of standby power.

In addition, the conventional standby power cut-off device has a problem that the use value is low because it is complicated and inconvenient to use by the general public.

SUMMARY OF THE INVENTION An object of the present invention is to provide a standby power cut-off device that can efficiently cut off unnecessary wasted standby power by providing a standby power cut-off device capable of omitting a current sensor for detecting the use of a main device and an auxiliary device. To provide.

The object is, according to the present invention, an AC power supply for supplying AC power to at least one outlet; A port connection portion connected to the terminal port of the main apparatus; An initial power supply unit supplying initial AC power to the first relay and the second relay; A power supply unit for converting the initial AC power supplied through the initial power supply unit and the second relay into DC power; And a first output signal supplied to the first relay and a second output supplied to the second relay based on an input signal provided from the port connection unit, driven by the DC power supplied from the power supply unit. It is achieved by a standby power cut-off device comprising a control unit for generating a signal.

The controller is configured to turn off the second relay through the second output signal when the input signal is a predetermined first level signal, and to output the first output signal when the input signal is a predetermined second level signal. The first relay may be turned off through a signal.

The terminal port may be any one of a universal serial bus (USB) port, a digital video / visual interactive (DVI) port, a high-definition multimedia interface (HDMI) port, and a video graphics array (VGA) port.

The first level signal may be + 5V and the second level signal may be 0V.

Differential circuits may be provided at the input terminal of the port connection unit to prevent a malfunction due to an instantaneous voltage drop phenomenon.

The initial power supply unit may be provided as a push button switch for driving the first relay and the second relay together.

The initial power supply unit, the sliding switch capable of selectively performing any one of the standby power interruption mode for interconnecting the first terminal and the second terminal or the general mode for interconnecting the second terminal and the third terminal. It can be prepared as.

The at least one outlet is a plurality of outlets, the power cords of the main device and the power cords of the plurality of auxiliary devices associated with the main device may be connected to the plurality of outlets, respectively.

The main device may be a set top box or a computer.

The controller may turn off the first relay through the first output signal when the standby state of the main device is maintained for a predetermined time or more during the initial AC power supply.

The initial power supply unit may be separately provided from the outlet and separately provided to the outside.

According to the present invention, the main power supply unit, a power supply unit for converting AC power into a DC power supply, and a control unit which is driven through the DC power supplied from the power supply unit and turns the first relay and the second relay on and off, It is possible to provide a standby power cut-off device that can omit a current sensor for detecting the use of the device and the auxiliary device, so that unnecessary standby power can be efficiently cut off.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

1 is a perspective view of a standby power cut-off device according to an embodiment of the present invention, Figure 2 is a schematic internal circuit diagram inside the standby power cut-off device of Figure 1, Figure 3 is a schematic circuit diagram of the first relay of Figure 2 to be.

Referring to these drawings, the standby power cut-off device 100 according to an embodiment of the present invention is the AC power supply 110 for supplying AC power to the outlet (C1, C2, C3) and the terminal port of the main device The port connection unit 120 to be connected, the initial power supply unit 140 for supplying initial AC power to the first relay 131 and the second relay 132, the initial power supply unit 140 and the second relay 132 The power supply unit 150 for converting the initial AC power supplied through the DC power supply and the input signal (IS) provided from the port connection unit 120 is driven through the DC power supplied from the power supply unit 150 The control unit 160 generates a first output signal OS1 supplied to the first relay 131 and a second output signal OS2 supplied to the second relay 132 based on the.

The AC power supply unit 110 supplies AC power to various electronic devices through outlets C1, C2, and C3 to which power plugs of various electronic devices are connected, and together with the first relay 131 and the second relay 132. It is a configuration for supplying the initial AC power for driving) to the initial power supply unit 140 side.

The port connection unit 120 is configured to interconnect the terminal port of the main device and the standby power cut-off device 100 of the present embodiment, and includes a port connector 121 and a port connection line 122. The port connection unit 120 is connected to a terminal port of the main device to detect a DC voltage signal (hereinafter, referred to as an “input signal IS”) output from the main device and provide it to the controller.

The controller 160 receiving the input signal IS determines whether the received input signal IS is a first level signal SV1 or a second level signal SV2. If the input signal IS is the first level signal SV1, the controller 160 transmits the second output signal OS2 to the second relay 132 to turn off the second relay 132. . Detailed description thereof will be provided later in the description of the controller 160.

The port connector 121 connects directly to the terminal port of the main device, where the terminal port is a universal serial bus (USB) port, a digital video / visual interactive (DVI) port, a high-definition multimedia interface (HDMI) port, and a VGA. (video graphics array) A port that has one or similar properties. In addition, the port connection line 122 refers to a wire extending from one end of the port connector 121 to the standby power cut-off device 100 side of the present embodiment.

One side of the port connector 120 is provided with a differential circuit (CI) as shown in Figure 2, where the differential circuit (CI) of the port connector 120 due to poor contact of the port connector 121, etc. When a momentary voltage drop phenomenon occurs, it refers to a circuit for preventing the malfunction of the standby power cut-off device 100.

On the other hand, the first relay 131 transmits the power supplied from the AC power supply 110 to the first outlet (C1), the second outlet (C2) and the third outlet (C3) side, or the AC power supply 110 It is a structure provided so that the electric power supplied to the 1st outlet C1, the 2nd outlet C2, and the 3rd outlet C3 side together can be cut off together. As shown in FIG. 3, the first relay 131 is a general relay including a varistor (RV), a resistor (R), a capacitor (C), a diode (D), and the like so as to minimize noise due to a switch contact. It is provided by a relay circuit. Alternatively, the first relay 131 may be provided as a semiconductor solid state switch such as a photo triac.

The second relay 132 receives power from the first outlet C1 and transfers it to the power supply unit 150 side again, or cuts off power transmitted from the first outlet C1 to the power supply unit 150 side. Configuration. Although not shown, the second relay 132 has substantially the same configuration as the first relay 131. That is, the second relay 132 is the same as the first relay 131 to the varistor (RV), the resistor (R), the capacitor (C) and the diode (D), etc. to minimize the noise caused by the switch contact. It is provided with a general relay circuit configured, but alternatively, it may be provided with a semiconductor type solid state switch such as a photo triac.

The initial power supply unit 140 is configured to supply initial AC power to the first relay 131 and the second relay 132 to drive the first relay 131 and the second relay 132. The initial power supply unit 140 is provided as one push button switch commonly connected to the contacts of both ends of the first relay 131 and both ends of the second relay 132. 131 and the second relay 132 are driven together. In FIG. 3, only the initial power supply unit 140 connected to the contact of both ends of the first relay 131 is shown.

The power supply unit 150 is configured to convert the initial AC power supplied through the initial power supply unit 140 and the second relay 132 into DC power and supply it to the controller 160 again. The first output signal OS1 and the first output signal OS1 which are driven by the DC power supplied from the power supply unit 150 and are supplied to the first relay 131 based on the input signal IS provided from the port connection unit 120. The second output signal OS2 supplied to the second relay 132 is generated.

When the first relay 131 and the second relay 132 are driven according to the operation of the initial power supply 140, the AC power is supplied to the power supply unit 150 via the AC power supply 110 and the second relay 132. Is delivered to the side, the power supply unit 150 converts such AC power to DC power and transmits it to the controller 160 side. The controller 160 is driven through the DC power supplied from the power supply unit 150 and receives the input signal IS from the port connection unit 120 to determine the state of the input signal IS, and accordingly the first output. The signal OS1 and the second output signal OS2 are generated.

The control unit 160 is driven by the DC power supplied from the power supply unit 150, and based on the input signal IS provided from the port connection unit 120, the first relay 131 and the second relay 132. ) Generates a first output signal OS1 and a second output signal OS2 to be supplied to each of?

The controller 160 supplies the second output signal OS2 to the second relay 132 when the input signal IS supplied from the port connector 120 is a predetermined first level signal SV1. Turn off 132. Here, the predetermined first level signal SV1 refers to a + 5V signal, and the second output signal OS2 refers to a signal for turning off the second relay 132.

In addition, the controller 160 checks whether the standby state of the main device lasts for a predetermined time or more, and if the standby state of the main device lasts for a predetermined time, the first output signal OS1 to the first relay 131 side. ) Serves to turn off the first relay 131.

Now, the driving principle of the standby power blocking device 100 according to the present embodiment will be described briefly.

4 is a schematic diagram of the standby power cut-off device of FIG. 1 used in a broadcast receiver, a TV, and a speaker (audio device), and FIG. 5 is an AC power supply to the device of FIG. 4 by driving the standby power cut-off device of FIG. This is a flow chart showing the process of supplying, Figure 6 is a flow chart showing a process of shutting off the AC power supplied to each device when the standby state of the broadcast receiver of Figure 4 for a predetermined time, Figure 7 is a device of FIG. The flowchart shows the process of shutting off the AC power supplied to the system.

Referring to these drawings, the standby power cut-off device 100 of the present embodiment is used in a broadcast receiver (Set Top Box), a TV and a speaker, and hereinafter, it will be described on the assumption that the above-mentioned main device is a broadcast receiver.

First, the power plug of the broadcast receiver which is a main device is connected to the first outlet C1 of the standby power cut-off device 100, the power plug of the TV is connected to the second outlet C2, and the power supply of the speaker is connected to the third outlet C3. Plugs are connected respectively. Of course, the standby power cut-off device 100 of the present embodiment may include three or more outlets, and each outlet may be connected to a DVD player, a game machine, and the like.

In addition, the initial power supply unit 140 of the standby power cutoff device 100 is provided separately from the main body 100a of the standby power cutoff device 100, as shown in FIG. It may be provided in a coupled state.

The user who wants to watch the TV presses the initial power supply unit 140 provided by the push button switch. As the initial power supply unit 140 is driven, the first relay 131 and the second relay 132 are turned on, and thus, the AC power supplied from the AC power supply unit 110 is a power supply unit ( 150) side. The power supply unit 150 converts the supplied AC power into DC power and supplies it to the control unit 160 again, even if the user releases the push button switch under the control of the control unit 160. The second relay 132 continues to be in an on state, and thus, a state in which AC power is continuously supplied to the broadcast receiver, the TV, and the speaker is maintained.

Next, when the user turns on the power of the broadcast receiver through the remote control, the power of the broadcast receiver is turned on, and thus, a voltage of + 5V is maintained at the terminal port of the broadcast receiver, that is, the USB port of the broadcast receiver.

The port connector 120 provides a voltage of + 5V detected through the port connector 121 as the input signal IS to the controller 160, and the controller 160 receives the input signal IS to receive the second signal. The second relay 132 is turned off by supplying the output signal OS2 to the second relay 132 side. That is, when the broadcast receiver is in the on state, the input signal IS becomes a predetermined first level signal SV1, that is, a signal of + 5V, so that the controller 160 controls the second relay 132 to turn off the second relay 132. The second output signal OS2 is supplied to the 132 side.

When the second relay 132 is turned off according to the second output signal OS2 supplied from the controller 160, the AC power supplied to the second relay 132 through the AC power supply 110 is no longer supplied. Similarly, the AC power supplied from the second relay 132 to the power supply unit 150 side is cut off. Accordingly, since the DC power supplied from the power supply unit 150 to the controller 160 is also cut off, the operation of the controller 160 is stopped.

However, the + 5V voltage supplied from the broadcast receiver is continuously maintained in the port connector 120, and the voltage supplied from the broadcast receiver is continuously provided to the first relay 131 through a diode connected to the first relay 131. Therefore, the on state of the first relay 131 is maintained as it is.

That is, when the broadcast receiver is turned on, the input signal IS supplied from the port connection unit 120 to the controller 160 becomes + 5V, which is the first level signal SV1, and in this case, the second relay 132. Is off under the control of the controller 160, but since the first relay 131 is continuously supplied with a voltage of + 5V from the broadcast receiver, the on state can be maintained as it is. Accordingly, the user can use other electronic devices connected to the standby power cut-off device 100 such as a TV or a speaker.

On the other hand, when the user turns off the broadcast receiver through the remote control, the terminal port of the broadcast receiver, that is, the USB port of the broadcast receiver takes a voltage of 0V, accordingly, the first relay 131 that was supplied with voltage through the USB port. ) Is turned off and the AC power supplied to the first outlet C1, the second outlet C2, and the third outlet C3 is simultaneously cut off.

On the other hand, as shown in Figure 6, if the standby state of the broadcast receiver for more than a certain time, the control unit 160 supplies the first output signal (OS1) to the first relay 131 side by the first relay 131 Off. That is, even when the broadcast receiver is connected to the first outlet C1, if the user does not turn on the broadcast receiver for more than a predetermined time, the controller 160 detects this, turns off the first relay 131, and accordingly, the waste is unnecessary. To save power.

The standby power cutoff device 100 according to the present embodiment simultaneously turns on the first relay 131 and the second relay 132 through the initial power supply 140, and then moves to the controller 160 through the USB port of the main device. By providing the AC power to the outlet (C1, C2, C3) by determining the type of the input signal (IS) to be delivered to provide a standby power cut-off device 100 that effectively cuts off the unnecessary waste of standby power even with a simple configuration You can do it.

8 is a schematic circuit diagram of the standby power cut-off device 200 according to another embodiment of the present invention.

Standby power cut-off device 200 according to the present embodiment is an AC power supply 210 for supplying AC power to the outlet (C1, C2, C3), a port connecting portion 220 connected to the terminal port of the main device, Initial power supply 240 for supplying initial AC power to the first relay 231 and the second relay 232, and the initial AC power supplied through the initial power supply 240 and the second relay 232 direct current The power supply unit 250 converts to a power supply, and is driven through the DC power supplied from the power supply unit 250 and supplied to the first relay 231 based on an input signal provided from the port connection unit 220. And a controller 260 for generating a first output signal and a second output signal supplied to the second relay 232.

Regarding the AC power supply unit 210, the port connection unit 220, the power supply unit 250, and the control unit 260, the AC power supply unit 110, the port connection unit 120, and the power supply unit 150 of the above-described embodiment are described. ) And the control unit 160 is the same as the duplicate description will be omitted.

The initial power supply unit 240 is configured to supply initial AC power to the first relay 231 and the second relay 232 to drive the first relay 231 and the second relay 232. Unlike the above-described embodiment, the initial power supply 240 of the present embodiment is provided as a sliding switch having three terminals. When the first terminal T1 and the second terminal T2 are connected by the initial power supply unit 240 provided as a sliding switch, the standby power cutoff device 200 operates in the standby power cutoff mode. The driving principle of the standby power cut-off device 200 is as described above.

When the user slides the sliding switch to connect the second terminal T2 and the third terminal T3, the standby power cutoff device 200 operates in the normal mode. Herein, the normal mode refers to a case in which the standby power cutoff device 200 performs the same operation as a normal power strip. That is, in the normal mode, the standby power cut-off device 200 is not driven and supplies only AC power to the outlets C1, C2, and C3 as in the power strip.

The standby power cutoff device 200 of the present embodiment may be used in a standby power cutoff mode or a normal mode according to the user's convenience, and when the standby power cutoff mode is operated, the standby power cutoff efficiency may be efficiently cut off by only a simple configuration. Has an advantage.

While specific embodiments of the invention have been described and illustrated above, it is to be understood that the invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the invention. It is self-evident to those who have. Therefore, such modifications or variations are not to be understood individually from the technical spirit or point of view of the present invention, the modified embodiments will belong to the claims of the present invention.

1 is a perspective view of a standby power cut-off device according to an embodiment of the present invention.

FIG. 2 is a schematic internal circuit diagram of the standby power cutoff device of FIG. 1.

3 is a schematic circuit diagram of the first relay of FIG. 2.

4 is a schematic diagram of the standby power cut-off device of FIG. 1 used in a broadcast receiver, a TV, and a speaker.

5 is a flowchart illustrating a process of supplying AC power to the device of FIG. 4 by driving the standby power cutoff device of FIG. 1.

FIG. 6 is a flowchart illustrating a process of shutting off an AC power supplied to each device when the standby state of the broadcast receiver of FIG. 4 lasts for a predetermined time.

FIG. 7 is a flowchart illustrating a process of shutting off an AC power supplied to the device of FIG. 4.

8 is a schematic circuit diagram of the standby power cut-off device 200 according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: standby power cut-off device 110: AC power supply unit

120: port connection portion 131: first relay

132: second relay 140: initial power supply

150: power supply unit 160: control unit

Claims (11)

An AC power supply unit supplying AC power to at least one outlet; A port connection portion connected to the terminal port of the main apparatus; An initial power supply unit supplying initial AC power to the first relay and the second relay; A power supply unit for converting the initial AC power supplied through the initial power supply unit and the second relay into DC power; And A first output signal supplied to the first relay and a second output signal supplied to the second relay based on an input signal provided from the port connection unit, driven through the DC power supplied from the power supply unit; Standby power cutoff device comprising a control unit for generating a. The method of claim 1, The control unit, And when the input signal is a predetermined first level signal, turning off the second relay through the second output signal. The method of claim 1, The terminal port, Standby power interruption device characterized in that any one of a universal serial bus (USB) port, a digital video / visual interactive (DVI) port, a high-definition multimedia interface (HDMI) port and a video graphics array (VGA) port. The method of claim 2, And the first level signal is + 5V. The method of claim 1, At the input end of the port connection portion, Standby power cut-off device characterized in that the differential circuit is provided to prevent malfunction due to the instantaneous voltage drop phenomenon. The method of claim 1, The initial power supply unit, Standby power cut-off device characterized in that provided with a push button switch (Push Button Switch) for driving the first relay and the second relay together. The method of claim 1, The initial power supply unit, And a sliding switch capable of selectively performing any one of a standby power interruption mode interconnecting the first terminal and the second terminal or a general mode interconnecting the second terminal and the third terminal. Standby power interruption device. The method of claim 1, The at least one outlet is a plurality of outlets, Each of the plurality of outlets, And a power cord of the main device and power cords of a plurality of auxiliary devices associated with the main device are connected. The method of claim 8, The main device is a standby power cut-off device, characterized in that the broadcast receiver (Set Top Box) or a computer. The method of claim 2, The control unit, And turning off the first relay through the first output signal when the standby state of the main device lasts for a predetermined time during the initial AC power supply. The method of claim 1, The initial power supply unit, Standby power cutoff device characterized in that separated from the outlet is provided separately to the outside.

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