KR20090045472A - Power saving multitab and control method thereof - Google Patents

Abstract

The present invention relates to a power-saving power supply multi-tap, and more particularly, to a power-saving power supply multi-tap and a control method of controlling power output of a multi-step by detecting whether a device connected to the power strip is driven so as to prevent unnecessary consumption of standby power. .

The first embodiment of the present invention, the main product is connected to the main product including the master terminal and the sub-electronics are connected to the main product connected to the master terminal output current value is below the set level or connected to When the current value in the on or off state is sensed below the set level, it is characterized in that the power line connected to the master terminal and the sub terminal is cut off.

Power strip, standby power

Description

Power saving multitab and control method

The present invention relates to a power-saving power supply multi-tap, and more particularly, to a power-saving power supply multi-tap and a control method of controlling power output of a multi-step by detecting whether a device connected to the power strip is driven so as to prevent unnecessary consumption of standby power. .

Various electric products and electric devices used in general homes and offices are supplied with electricity as a power source. In order to connect such electrical appliances or appliances to a power source, the plug 84 formed in the electrical appliance or appliances was fastened to an outlet installed on a wall of a building to connect power.

However, in order to connect such electrical appliances or appliances to a power source, the outlet installed on the wall inside the building was connected to a power outlet by fastening a plug 84 formed on the electrical appliance or appliance to an outlet installed on a wall of the building. .

However, since the number of the outlets installed on the wall inside the building is limited, there is a problem that it is difficult for the user to connect a power source when the number of use of electrical appliances or appliances is large.

Therefore, conventionally, a multi-tab provided with a plurality of outlets and connected to a wall outlet is used to conveniently connect a plug of various electrical appliances or devices to an outlet of a multi-tap.

By the way, the number of home appliances basically provided by most homes such as TVs, VCRs, refrigerators, audio and cordless telephones is large, and in most homes, these plugs are left unplugged even when they are not in use. Done.

This is not only troublesome to separate the cord when not in use, as well as the mechanical damage caused by detaching the power cord plug from the repetitive outlet.

Because of this, even if they are unplugged when not in use at home, even if there is more than 10% power saving effect, it is not properly implemented, so the consumption of national standby power is enormous.

In consideration of these problems, the individual on / off switch was installed to correspond to each outlet of the power strip, and thus the standby power was reduced by cutting off the power supply when the electric product was not used.

However, even in such a case, since only one of the two power cords was cut off to cut off the power supply, there was a problem in that the standby power could not be cut off completely because some power was supplied to the electric product through the other power cord. .

The present invention has been made to solve the above problems, it is an object of the present invention to provide a power-saving multi-tap and a control method for blocking the output of standby power by detecting the driving of at least one or more connected electronic products. The purpose.

Another object of the present invention is to provide a power-saving multi-tap and a control method for supplying power to a plurality of electronic products having a correlation, which can automatically cut off the power of a sub product according to the power off of the kettle product. .

The present invention includes the following examples in order to achieve the above object.

A first embodiment of the present invention is a multi-tap for outputting power to an electronic product group including at least one sub-electronic product connected to one main product, wherein the main product is connected to a master terminal and the sub-electronic product. If the main product connected to the master terminal including the sub terminal connected to the output current value is less than the set level or the current value when the connected product is on or off state is below the set level, the master terminal and the sub terminal It is characterized in that the power line connected to the cut off.

According to a second embodiment of the present invention, in the first embodiment, the power-saving power strip receives a switch for applying a power output on signal of the master terminal and the sub terminal and a remote signal of a main product connected to the master. At least one or more of the remote control receiving unit for outputting the power output on signal.

The third embodiment of the present invention, in the first embodiment, the power-saving power strip further includes a constant power terminal for outputting power to the product connected regardless of the power output of the master terminal and the sub-terminal.

A fourth embodiment of the present invention provides a multi-tap including a master and a sub terminal for outputting power, comprising: a power input unit for outputting power to the master and sub terminals; A current sensing unit sensing an amount of current output from the master terminal; A control unit which controls the power output of the master terminal and the sub terminal by comparing the output current level of the master terminal sensed by the current sensing unit with a set current level; And a switching unit for turning on and off a power line between the master terminal and the sub terminal and the power input unit according to a control signal of the controller.

According to a fifth embodiment of the present invention, in the fourth embodiment, the power-saving power strip is a switch for applying a power output signal of the master terminal and the sub terminal to the controller, and an on-signal transmitted from a remote controller to receive the switch. It further includes at least one or more of the remote control receiver applied.

A sixth embodiment of the present invention relates to the current sensing unit of the fourth embodiment, wherein the current sensing unit senses a current sensor and a current sensor for sensing an amount of current in a power line connected between the power input unit and the master terminal. It characterized in that it comprises a cone sensor and a resistor for removing the noise of the signal.

According to a seventh embodiment of the present invention, in a control method of a power-saving power strip for outputting power to an electronic product group including at least one sub-electronic product connected to one main product, a power supply for determining whether a power-on signal is received An on-signal determining step; A switching-on step of contacting the power line connected to the master terminal and the sub-terminal when a power-on signal is received; A current sensing step of sensing an amount of current output from the master terminal; A current comparing step of comparing the amount of current sensed in the current sensing step with a set current value to determine whether the sensed current value is below a set level; In the current comparison step, if the output current value of the master is less than the set level, the power line connected to the master terminal and the sub-terminal includes a switching off step of cutting off the power output to the master terminal and the sub-terminal contact do.

In the eighth embodiment of the present invention, in the power-on signal receiving judging step of the seventh embodiment, the power-on signal is applied to a remote control signal of an electronic product sent from a remote control or a switch installed in the power strip is turned on. It is characterized in that the on-signal.

A ninth embodiment of the present invention relates to the current comparison step of the seventh embodiment, wherein the current comparison step is for receiving the on or off signal of the electronic product of the remote controller to cut off the power of the master and the sub terminals. Characterized by

As described above, the power-saving power strip according to the present invention and a control method thereof according to the present invention detects the current of the main product among correlated electronic products, and performs power supply of the main product and sub-products which perform their respective functions according to the driving of the main product. By blocking all the devices, the standby power output can be cut off while the product is off, thus preventing unnecessary energy consumption.

In addition, the present invention is to classify the main product and the sub-product to be connected to the master and the sub-terminal, respectively, so as to control the power output of the sub-terminal in accordance with the driving state of the main product can facilitate the user's convenience.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a power-saving power strip according to the present invention will be described in detail.

1 is a plan view showing a preferred embodiment of a power saving power strip according to the present invention.

Referring to FIG. 1, a power-saving power strip according to the present invention includes a group of electronic products forming a group, for example, a group including a computer and a printer, a monitor, and a speaker connected to the computer, or a TV, audio, and a TV. Among the group of such home theater equipment included, for example, it includes a master terminal 81 to which the main electronics of the computer or home theater equipment, such as a computer or TV, are connected.

In another aspect, the present invention is a sub-terminal 82 of the electronic group other than the main electronics, such as a speaker or a printer in the computer group, and a DVD or audio is connected in the home theater group. It includes.

In addition, the power terminal 83 is always output power through the plug of the product connected to the master terminal 81 and the sub-terminal 82, the plug 84 is input external power, and the master terminal 81 It includes a remote control receiver 50 and the switch 40 for receiving the output on signal of the power supply through.

The master terminal 81 is connected to the plug of the main electronics of the electronic products of any group group as described above, when the connected electronics is turned on, the power is output to the sub-terminal 82, the configuration and Control is described in detail with reference to FIGS. 2 to 4 below.

The sub terminal 82 outputs power according to the power output of the master terminal 81, and when the power output is cut off from the master terminal 81, the power output is simultaneously cut off. That is, in the present invention, when a power-on signal is received from an electronic product that is the main electronic product among the electronic products forming one group group, the power is output to the sub terminal among the group group of the electronic products, thereby powering the remaining electronic products. Is applied. In addition, when the main electronics are off, the power output to other electronic products is cut off.

The constant power terminal 83 is a terminal that always outputs external power to the plug 84 connected regardless of whether the master terminal 81 and the sub terminal 82 are powered. Therefore, the present invention can simultaneously turn on and off electronic products forming one group group through the master and sub 81 and 82 as described above, and separate electronic products not belonging to the other group groups to the constant power terminal 83. Can also be used in connection.

In addition, in the present invention, by detecting the on-off of the electronic device connected to the master terminal 81 as described above, the power output from the master terminal 81 is cut off, the configuration according to the following in Figures 2 to 3 Shown as an example.

2 is a block diagram illustrating a power saving power strip according to the present invention.

Referring to FIG. 2, the power-saving power strip according to the present invention converts AC power input through the power input unit 10 to which external power is input, and AC power input through the power input unit 10 to DC 5V, and supplies them to each of the following configurations. An integrated power supply unit 20, a current sensing unit 30 for sensing the amount of current supplied from the master terminal 81, a switch 40 for outputting a power output signal of the master terminal 81, and the transmission from the remote control The master terminal 81 and the sub terminal are compared with a setting level and a sensing level according to the remote controller receiving unit 50 receiving the power output signal of the master terminal 81 and the detection signal of the current sensing unit 30. The control unit 60 for controlling the power output of the 82 and the relay switching unit 70 for switching the power output of the master terminal 81 and the sub-terminal 82 in accordance with the control signal of the control unit 60. Include.

The power input unit 10 transfers the AC external power input through the power plug 84, the integrated power unit 20 converts the AC power input to the power input unit 10 to DC 5V each component It is supplied as an operating power source of, which has a generally known configuration and circuit and its description is omitted.

The current sensing unit 30 senses the amount of current output from the master terminal 81, and is installed in the power line between the master terminal 81 and the power input unit 10 for this purpose, the master terminal 81 Detects the amount of current output through the output signal to the control unit 60.

Here, the current detector 30 senses a change value of the output current value when the electronic devices connected to the master and sub terminals are switched from the on state to the off state, and from the off state to the control unit 60. Outputs the detection signal.

The relay switching unit 70 switches on or off the power line connected from the power input unit 10 to the master terminal 81 and the sub terminal 82 according to a control signal of the controller 60. To this end, it includes a relay (K1). Therefore, since the relay K1 is turned on when the ON signal is applied from the controller 60, the relay switching unit 70 receives the AC power output from the power input unit 10 from the master terminal 81 and the sub terminal ( 82).

The switch 40 is a switch 40 which is manually turned on by the user. When the switch 40 is turned on, the switch 40 outputs an on signal to the controller 60, and the remote controller 50 is transmitted from an operation remote control such as a television or a home theater. Receives an on-signal of the electronic product to output to the control unit 60.

When the on signal is received through the switch 40 and the remote control receiver 50, the controller 60 turns on the relay switching unit 70 to the master terminal 81 and the sub terminal 82. The power output from the power input unit 10 is outputted, and when the output current amount of the master terminal 81 sensed by the current sensing unit 30 is less than or equal to a set level, the relay switching unit 70 is turned off. The power input unit 10 cuts off the power output from the master terminal 81 and the sub terminal 82.

In addition, the control unit 60 is preferably set the amount of change in the current value generated during the on, off drive conversion of the main product connected to the master terminal 81 operated by the remote control is the current sensing unit 30 If the range of the detected output change value corresponds to this, the relay switching unit 70 is controlled to cut off the power output to the master terminal 81 and the sub terminal 82.

Such a configuration is connected and configured as a circuit diagram as shown in FIG. 3 below.

FIG. 3 is a circuit diagram of a power-saving power strip according to the present invention, in which only important circuit configurations are described, but description of general circuit configurations (for example, first to second diodes D1 and D2 of the integrated power supply unit 20). And the first to fifth capacitors C1 to C5 are omitted.

Referring to FIG. 3, the power input unit 10 receives external power through the plug 84 and is connected to an integrated power supply unit 20, the master terminal, and the sub terminal 82.

Here, the integrated power supply unit 20 includes a converter U1 for converting AC power input from the power input unit 10 into a DC power source, and a first transistor connected between the power input unit 10 and the converter. Q1).

The relay switching unit 70 emits light indicating a relay K1 connected between the power input unit 10 and a power line connected to the master and sub terminals 82, and on and off of the relay K1. The device D3 includes a second transistor Q2 connected between the relay K1 and the controller 60.

The current sensing unit 30 includes a current sensor CT for detecting a current between the master terminal 81 and the power input unit 10, and two lines 1 connected in parallel from the current sensor CT. And a seventh capacitor C7 and a seventh resistor R7 connected to 2), wherein the seventh capacitor C7 and the seventh resistor R7 are noise of a signal applied from the current sensor CT. Remove it.

The switch 40 is connected to the control unit 60 as a contact switch 40, the remote control receiver is connected to the control unit 60 including an infrared light receiving element.

The control unit 60 is a microcomputer, and each port is connected to the base terminal of the second transistor Q2, the switch 40, and the infrared light receiving element IR1 of the remote control receiver 50.

Hereinafter, the operation of the power saving type power strip according to the present invention including the above configuration will be described in detail using the following flowchart.

4 is a flowchart illustrating a control method of a power saving type power strip according to the present invention.

Referring to FIG. 4, the control method of the power saving type power strip according to the present invention includes a standby step (S11), a power-on signal reception determining step of determining whether an on-signal is received from the switch 40 or the remote control receiver 50; In operation S12, when the power-on signal is received, a switching-on step of turning on the relay switching unit 70 and a current sensing step of detecting a current output from the master terminal 81 are detected. And a current comparing step (S15) of determining whether the amount of current is below a predetermined level, and a switching-off step (S16) of turning off the relay switching unit 70 to cut off standby power when the detected current amount is below a set level. .

The standby and power-on signal receiving determination steps S11 and S12 determine whether an on signal is received through the switch 40 or the remote controller receiver 50 in the standby state. For example, the remote control receiver 50 receives an on-signal of an electronic product group corresponding to a home theater operated by a remote controller, and the switch 40 does not include a remote controller or is caused by a loss or failure of the remote controller. When the electronic device group in which the product is not driven is connected to the master terminal 81 and the sub terminal 82, it is turned on and off manually by the user.

In addition, the master terminal 81 is a mains of the electronic product group as described above, for example, a power plug 84 such as a computer or TV is connected, the sub-terminal 82 is connected to the computer A printer or a speaker and a monitor are connected, or a power plug 84 such as an audio or DVD connected to the TV is connected.

In addition, the regular power terminal 83 is connected to a separate electronic product from the electronic product group as described above so that it can be used regardless of the power interruption of the sub terminal 82 due to the current detection of the master terminal 81. It is preferable to aim at convenience.

In the switching-on step (S13), when the on signal is received from the switch 40 or the remote control receiver 50 in the power-on signal receiving determination step, the relay switching unit 70 is turned on so that the power input unit 10 is turned on. External power applied from is output to the master and the sub terminal 82, respectively.

Here, the controller 60 switches on the relay switching unit 70 because an on-signal received from the remote control receiver 50 is applied as a user turns on the TV by turning on the switch 40 or by operating a remote controller. Output the signal. In this case, the switching-on signal output from the controller 60 turns on the second transistor Q2, and the relay is contacted on since the second transistor Q2 is turned on. In addition, since the relay K1 is contact-on, a current is supplied to the light emitting device D3 to indicate the contact-on of the relay K1. Therefore, since the power output from the power input unit 10 is applied to the master terminal 81 and the sub terminal 82, respectively, a driving power source for an electronic product connected to the master terminal 81 and the sub terminal 82, respectively. Is supplied.

In this case, it is preferable to further include a noise preventing means SK1 in parallel with the relay in order to prevent abnormal voltage or noise, such as a surge voltage or the like of a setting level or higher, from an external power source applied from the power input unit 10. .

The current sensing step S14 is a step of sensing the amount of current output from the master terminal 81 in the current sensing unit 30. The current detector 30 detects the amount of current output through the master terminal 81 and outputs a detection signal to the controller 60. Therefore, the controller 60 compares the current sensing signal applied by the current sensing unit 30 with the set level. When the current sensing unit 30 detects the output current amount of the master terminal 81 in the current sensor CT, the signal passes through the seventh capacitor C7 and the seventh resistor R7. The noise is removed and applied to the controller 60.

The current comparing step S15 is a step in which the controller 60 compares the output current value of the current master terminal 81 with the set current value according to the current sensing signal applied from the current sensing unit 30. The controller 60 detects the output current value of the master terminal 81, and thus determines whether to drive the electronic device connected to the master terminal 81. That is, if the electronic device connected to the master terminal 81 is in the off state, since standby power is output through the master terminal 81, energy is wasted as unnecessary power is output.

Therefore, in the present invention, by detecting the output current value of the master terminal 81 through the current comparison step (S15) as described above to check whether the main electronic products of the connected electronic product group is driven, the main terminal as well as the sub-terminal 82 ) Controls the power output to the electronic products connected to the) to prevent unnecessary energy consumption.

In addition to the description, it is to sense the current of the master terminal 81 to cut off the power to the sub terminal 82 is one of the above-described product, for example, the computer is connected to the master terminal 81 and the sub This is because if the computer is off when the speaker and the printer are connected to the terminal 82, other electronic products do not need to be kept on. Therefore, the present invention can control the on / off of the whole product through the current sensing of one product in the master terminal 81.

Also, in general, electronic products that are turned on or off by a remote controller generate a large current value change when the electronic device is switched from on to off rather than the general operation signals in the on state. Therefore, in the present invention, it is preferable that the current sensing unit 40 cuts off the power applied to the master and the sub terminals by sensing the current change amount of the main product to recognize the off of the product.

Therefore, the control unit 60 determines the amount of current change generated when the product is switched from the on state to the off state by the detection signal of the current sensing unit 30, and the detected current value is the current change amount. If it is matched to the off of the product is sensed to cut off the power of the master terminal 81 and the sub-terminal 82.

In the switching-off step S16, when the current value sensed by the current sensing unit 30 is less than or equal to a set current value in the current comparing step S15, the switching unit is turned off to turn off the master terminal 81. ) And the power supplied to the sub terminal 82.

The controller 60 turns off the relay K1 when the current value detected by the current sensor CT of the current sensing unit 30 is lower than or equal to a set level. Therefore, the power line connected to the master terminal 81 and the sub terminal 82 in the power input unit 10 is cut off as the relay is contacted off. Therefore, power is not output to the electronic devices connected to the master terminal 81 and the sub terminal 82.

That is, as described above, according to the present invention, when the current value of the master terminal 81 is equal to or lower than the set level, the electronic device connected to the master terminal 81 is in an off state to prevent unnecessary energy consumption. Since the power line 10 and the power lines of the master and sub terminals 82 are completely blocked, unnecessary consumption of energy can be prevented.

1 is a plan view showing a preferred embodiment of a power-saving power strip according to the present invention;

2 is a block diagram illustrating a power saving power strip according to the present invention;

3 is a circuit diagram of a power saving power strip according to the present invention;

4 is a flowchart illustrating a control method of a power saving type power strip according to the present invention.

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

10: power input unit 20: integrated power unit

30: current sensing unit 40: switch

50: remote control receiver 60: control unit

70: switching unit 81: master terminal

82: sub terminal 83: constant power terminal

84: plug

Claims (9)

A multi-tap for outputting power to an electronic product group including at least one sub-electronic product connected to one main product, The master product connected to the master terminal is connected to the master terminal and the sub-electronics are connected to the main product connected to the master terminal output current value is below the set level or connected to the product is detected on or off state Power-saving power strip, characterized in that to cut off the power line connected to the terminal and the sub-terminal. The power saving power strip of claim 1, wherein And at least one of a switch for applying a power output on signal of the master terminal and a sub terminal, and a remote control receiver for receiving a remote signal of a main product connected to the master and outputting a power output on signal. Power saving power tap. The power saving power strip of claim 1, wherein And a constant power terminal for outputting power to a product connected regardless of the power output of the master terminal and the sub terminal. In a multi-tap including a master and a sub terminal for outputting power, A power input unit for outputting power to the master and sub terminals; A current sensing unit sensing an amount of current output from the master terminal; A control unit which controls the power output of the master terminal and the sub terminal by comparing the output current level of the master terminal sensed by the current sensing unit with a set current level; And a switching unit for turning on and off a power line between the master terminal and the sub terminal and the power input unit according to a control signal of the controller. The power saving power strip of claim 4, wherein And at least one of a switch for applying a power output signal of the master terminal and the sub terminal to the controller, and at least one of a remote controller receiving unit receiving an ON signal transmitted from the remote controller and applying the signal to the controller. The method of claim 4, wherein the current sensing unit And a cone sensor and a resistor for removing a noise of a detection signal of the current sensor and a current sensor for sensing an amount of current in a power line connected between the power input unit and the master terminal. In the control method of the power-saving power strip for outputting power to the electronic product group including at least one or more sub-electronic products connected to one main product, A power-on signal receiving determining step of determining whether a power-on signal is received; A switching-on step of contacting the power line connected to the master terminal and the sub-terminal when a power-on signal is received; A current sensing step of sensing an amount of current output from the master terminal; A current comparing step of comparing the amount of current sensed in the current sensing step with a set current value to determine whether the sensed current value is below a set level; In the current comparison step, if the output current value of the master is less than the set level, the power line connected to the master terminal and the sub-terminal includes a switching off step of cutting off the power output to the master terminal and the sub-terminal contact Control method of a power-saving power strip characterized in that the. The method of claim 7, wherein in the power-on signal receiving determination step, The power on signal is a power-saving multi-tap control method, characterized in that the remote control signal of the electronic product transmitted from the remote control or the power-on signal is applied because the switch installed in the power strip is turned on. The method of claim 7, wherein the current comparison step The control method of the power-saving multi-tap characterized in that the power supply of the master and sub-terminals are energized or cut off by sensing the driving state of the electronic product by the on or off signal of the remote control.

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