KR100871672B1 - Multi Concent for Saving Power and Behavior Method thereof - Google Patents

Abstract

The present invention is connected to the main socket to adjust the operation threshold according to the power consumption of the main unit to reduce the generation of power operation threshold during normal operation, the power-saving multi-concentrator and its sub-socket to eliminate the operation threshold function as needed The driving method relates to a power-saving multi-outlet according to the present invention, the main power supply unit for supplying the main power to the main socket, receiving power selectively from the main power supply unit for supplying power to a sub socket separate from the main socket A secondary power supply unit, an electrical quantity measurement unit for detecting the electricity amount of the main power source and a secondary power driver for controlling the power supply or cutoff to the secondary power supply unit by comparing the electric quantity detected by the electrical quantity measurement unit and the operation threshold amount. In addition, according to the present invention, a method of driving a power-saving multi-outlet may include a first step in which external power is applied to at least one main socket by a main power supply unit, and measure a quantity of electricity supplied to the main socket by an electric quantity measuring unit to prepare a detection amount of electricity. A second step of setting the operation threshold amount by the threshold setting unit, a fourth step of converting the detection electric amount by the detection electric quantity and the operation threshold amount, and the sub-power driver uses the converted detection electric amount And a fifth step of generating an on or off control signal for controlling the sub power supply and a sixth step of relaying the external power to the at least one sub socket by the on or off control signal. .

Multi-outlet, multi-tap, video converter, varistor, power saving, standby power

Description

Multi-Concent for Saving Power and Behavior Method

1 is a block diagram showing a power saving multi-outlet according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram illustrating an example in which the threshold setting unit of FIG. 1 is implemented as an actual circuit. FIG.

FIG. 3 is a circuit diagram illustrating an example of an actual circuit implementation of the electrical capacitance measuring unit of FIG. 1.

FIG. 4 is a circuit diagram illustrating an actual circuit implementation of the sub power driver of FIG. 1. FIG.

FIG. 5 is a circuit diagram illustrating an example in which the sub power supply unit of FIG. 1 is implemented as an actual circuit. FIG.

FIG. 6 is a circuit diagram illustrating an example in which a mode switching unit of a power saving multi-outlet is further added and implemented as an actual circuit; FIG.

FIG. 7 is a circuit diagram illustrating a circuit power supply unit supplying circuit power for the operation of the threshold value setting unit and the sub-power driver of FIG. 1.

8 is a block diagram showing the configuration of a power saving multi-outlet having a remote control unit;

9 is a circuit diagram showing an example of a circuit for implementing the configuration of FIGS. 1 to 8 on an actual printed circuit board.

Figure 10a is a perspective view showing an actual production example of a power saving multi-outlet in accordance with an embodiment of the present invention.

Figure 10b is an exemplary view showing a modification to the socket of the present invention, an exemplary view showing a case where the terminal for 110V and 220V is provided together.

11 is a flowchart illustrating a method of driving a power saving multi-outlet according to an exemplary embodiment of the present invention.

FIG. 12 is a flowchart illustrating the third and fourth steps of FIG. 1 in more detail.

FIG. 13 is a flow chart showing the third and fourth steps in detail when the remote control unit of FIG. 1 is provided.

FIG. 14 is a flowchart detailing the fifth and sixth steps of FIG.

<Description of the symbols for the main parts of the drawings>

1,31: main power supply 3,33,51: sub power supply

5,35 53: Electric quantity measuring part 7,39,57: Negative power drive part

9,55: Threshold setting unit 11,41: Main socket

13,43: Sub socket 15,56: Mode switch

19,59: circuit power supply part 37: remote control part

45: external control device 61: overcurrent cut-off

63: filter portion 65: surge cut-off portion

67: operation alarm unit

The present invention relates to a multi-outlet, in particular, it 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, sub-socket as necessary to eliminate the operation threshold function It relates to a power-saving multi-outlet and its driving method.

In general, electronic products such as home / office computer systems or home theater systems are composed of a main unit and a plurality of peripherals, each of which is powered by a power supply. In this case, multi-outlets (or power strips) are frequently used to collectively supply power to the main and peripheral devices. The multi-outlet has a plurality of sockets that can be combined with cords (or plugs) of other devices, and a plug that can be connected to an outlet installed in a building wall or floor to supply power to the socket.

On the other hand, electronic products used for home or office use, in particular, products consisting of one main device and peripheral devices are encouraged to have a power saving function such as reduction of standby power in order to save energy and reduce energy usage. have. Such a power saving function is also required in a multi-outlet.

To this end, conventionally, multi-outlets that implement various types of power saving functions have been supplied to realize power saving functions. Representatively, the socket is divided into the main power supply and the accessory power supply, and the sub-socket is supplied only when the power usage of the main power is maintained above a certain value. However, these multi-outlets have many problems.

The operation principle of the conventional power saving function is to detect the amount of power and current supplied to the main socket and to supply power to the sub-socket if the detected value is greater than or equal to the predetermined value. By cutting off the power supplied, it cuts off the standby power that occurs when the plug is inserted into the socket. In other words, when the main computer is connected to the main socket, the conventional power-saving multi-outlet powers the sub-socket while operating the computer main body to operate the monitor, the printer, the speaker, and the like. By shutting off the power supply, the user can control the power supply of the peripheral device without turning off the peripheral device, and also reduce the standby power generated when the plug is inserted into the socket.

However, in the conventional power-saving multi-outlet, when the main power connected to the main socket maintains the minimum power while keeping the drive below a predetermined value, the power supplied to the sub socket is cut off even though the main device is in normal operation. There was this. In addition, although the minimum power value during operation is different depending on the type of the main device connected to the main socket, the power cut-off value of the sub-socket cannot be adjusted. There was also a problem that is limited to the type of home appliances that can be used.

In addition, the conventional power-saving multi-outlet does not provide a method that can be used as a general socket that does not automatically shut off the standby power of the sub-socket, a separate multi-outlet must be used to operate the peripheral device of the main unit. It caused discomfort.

The present invention is to solve the above-mentioned problems, an object of the present invention, connected to the main socket to adjust the operation threshold according to the power consumption of the main device to reduce the occurrence of power automatic power off during normal operation, the need for sub-socket Therefore, to provide a power-saving multi-outlet and its driving method that can be used without the automatic power off function.

Another object of the present invention is to provide a threshold setting unit for adjusting the operation threshold appropriately for the main device connected to the main socket, thereby enabling the user to designate an appropriate operation threshold for each device, and accordingly The present invention provides a power-saving multi-outlet and a method of driving the same to prevent inaccurate power failure of the sub-socket.

Another object of the present invention is to implement a threshold value setting unit easily by a variable resistor and an op amp, thereby preventing a rise in manufacturing cost, simplifying the circuit configuration, and increasing design freedom. To provide.

Another object of the present invention is to provide a power-saving multi-meter using an image current transformer so as to measure the amount of electricity in various forms, such as the use of power, current, voltage, etc. of the main power supply, and to have high sensitivity at low cost. It is to provide an outlet and a driving method thereof.

Another object of the present invention is to use a sub-power supply unit having a relay switch and a sub-power driver having an op amp and a control transistor to reduce the production cost, and to realize a circuit that can be reliably implemented by simplifying the circuit. It provides a multi-outlet and its driving method.

Finally, another object of the present invention, by controlling the power supply to the sub-socket through a remote control unit connected to an external device in a variety of communication methods, so that it can be used for a variety of purposes, and also convenient power control at a remote location It is to provide a power-saving multi-outlet and its driving method to perform.

In order to achieve the above object, the power-saving multi-concentrator according to the present invention is selectively supplied with power from a main power supply unit for supplying main power to the main socket, and the main power supply unit, and for supplying power to a sub socket separate from the main socket. A secondary power supply unit, an electrical quantity measurement unit for detecting the electricity amount of the main power source and a secondary power driver for controlling the power supply or cutoff to the secondary power supply unit by comparing the electric quantity detected by the electrical quantity measurement unit and the operation threshold amount.

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Other features and operations of the present invention in addition to the above objects will become apparent from the detailed description of the embodiments with reference to the accompanying drawings. Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a power saving multi-outlet according to a first embodiment of the present invention.

Referring to FIG. 1, a power saving type multi-outlet according to a first embodiment of the present invention includes a main power supply 1, a sub power supply 3, an electric quantity measuring part 5, and a sub power driver 7. In addition, the power saving multi-outlet according to the first embodiment of the present invention may further include a threshold setting unit 9.

The main power supply 1 is connected to an external socket or an outlet (An Wall Outlet) to supply power to the main socket 11, the sub power supply (7) and the sub power supply (3) selectively by the sub power supply ( Supply power to 3). To this end, the main power supply 1 has an input terminal (or plug) for connection with an external socket or outlet. In addition, the main power supply 11 further includes a filter unit for removing noise such as electromagnetic magnetic compatibility and power supply noise, a surge interruption unit and an overcurrent interruption unit for blocking a surge voltage causing damage to circuits and devices. can do.

The sub power supply 3 is selectively supplied with power from the main power supply 1 by the sub power driver 7 and supplies the supplied power to one or more sub sockets. To this end, the sub power supply 3 has a switching circuit controlled by the sub power drive 7.

The electricity quantity measuring unit 5 measures the amount of electricity supplied to the main socket 11 by the main power supply unit 1, and provides the sensing power SP to the sub power supply driving unit 7. Here, the amount of electricity means the amount of electricity that can determine the use of electricity, such as current, voltage, idle / idle / apparent power. To this end, the electric quantity measuring unit 5 may be implemented by means of measuring electric quantities such as an ammeter, a voltmeter, a power meter, or a deforming means such as a current transformer or a transformer.

The sub power supply unit 7 uses the detection electric quantity SP from the electric quantity measuring unit 9 and the operation threshold value (Cut-off Level: CL) set by the user, and the sub power supply unit 3 from the main power supply unit 1. Control the power supply or shutdown of the furnace. To this end, the sub-power driver 7 includes switching means for controlling the supply or interruption of power to the sub-power supply 3. A detailed description thereof will be described in more detail with reference to FIG. 4 to be described later.

The threshold value setting section 9 sets the operation threshold CL. To this end, the threshold value setting section 9 is provided with variable control means such as a variable resistor so that the operating threshold CL can be adjusted within a certain range. In addition, the threshold setting unit 9 may further include a ratio control means such as an OP-Amp for setting the operation threshold CL together with the variable control means.

FIG. 2 is a circuit diagram illustrating an example in which the threshold setting unit of FIG. 1 is implemented as an actual circuit.

Referring to FIG. 2, the threshold setting unit 9 may be implemented by a negative feedback circuit composed of op amps OP-Amp and OP1 of one stage and a variable resistor R _G. The first resistor R1 is connected to the positive input terminal + of the OP amplifier OP1, and the other end of the first resistor R1 is connected to the ground power source GND. The second resistor R2 is connected to the negative input terminal (−) of the OP amplifier OP1, and the detection electric quantity SP is input through the other end of the second resistor R2. In addition, the feedback circuit is implemented by the variable resistor R _G and the third resistor R3 between the output terminal of the OP amplifier OP1 and the negative input terminal − of the OP amplifier OP1.

The relationship between the output signal CL and the amplification factor in the threshold value setting section 9 having this negative feedback circuit is as follows.

Referring to Equation 1, the threshold setting unit of FIG. 2 determines the amplification rate by the resistors. That is, the amplification factor is determined by the values of the first to third resistors R1 to R3 and the variable resistor R _G excluding the input signal SP. That is, since the values of the first to third resistors R1 to R3 are fixed, the actual amplification factor is determined by the variable resistor R _{G. When the} variable resistor R _G value is increased, the amplification factor is increased. Will become large. When the threshold value setting unit 9 increases the value of the variable resistor R _G , the threshold value setting unit 9 operates sensitively with a large amplification factor even if the size of the input signal SP input through the input terminal is small. That is, even if the amount of electricity used in the main socket 11 is small, the power supply to the sub socket is maintained. On the other hand, if the value of the variable resistor R _G is reduced, the amplification factor is reduced, so that the OP amplifier OP1 operates normally only when the input signal SP is large, and the amount of electricity used by the main socket 11 is relatively large. Only when power is supplied to the subsockets. The contents related to the operation and features of the threshold setting unit 9 will be described in addition to the operation of the other configuration described later.

FIG. 3 is a circuit diagram illustrating an example of an actual circuit implementation of the electrical measurement unit of FIG. 1.

Referring to FIG. 3, the electric power measuring unit 5 of the power saving multi-concentration according to the present invention may be implemented using a zero phase current transformer (ZCT, Z1). In addition to the voltmeter, ammeter, and wattmeter, the electric current measuring unit 5 of the present invention may use a current transformer such as a winding current transformer, a rod current transformer, a through current transformer, a third winding current transformer, and a multicore core current transformer. However, it is advantageous to miniaturize, relatively easy to use in low-power, low current type circuit, the winding current transformer can be implemented at a relatively low cost. In particular, since the dual image current transformer easily detects a small current change compared to the general current transformer, it is preferable to use the image current transformer. In FIG. 3, a circuit example of implementing the electric quantity measuring unit 5 using the image current transformer will be described.

The image current transformer Z1 detects a current change of a power line connecting the main power supply 1 and the main socket 11. One end of the image current transformer Z1 is connected to the ground power supply GND, and the other end (or the output end) is connected to an input end of the threshold setting unit 9. At this time, the clamping diodes D1 and D2 are connected to the image current transformer Z1 in parallel. The clamping diodes D1 and D2 limit the overcurrent that may occur from the image current transformer Z1 to a certain range, thereby preventing other circuits including the image current transformer Z1 from being damaged by the overcurrent. In addition, the image current transformer Z1 may be connected in parallel with the first capacitor C1. The first capacitor C1 filters noise that may occur during the electric current detection process of the current transformer Z1 to prevent other circuit elements from malfunctioning by the noise.

4 is a circuit diagram illustrating an example of an actual circuit implementation of the sub-power driver of FIG. 1.

Referring to FIG. 4, the sub power supply driving unit 7 is connected to the sub power supply unit 3 to turn on / off the control transistor TR1 and the control transistor TR1 for controlling the power supply to the sub power supply unit 3. A second OP amplifier OP2 for controlling the operation is provided. In the description of FIG. 4, resistors and capacitors that are not important for describing the operation of the circuit are omitted, and resistors and capacitors may be added in consideration of increased stability of the circuit and filtering.

First, a circuit power supply 12V is supplied to the negative input terminal (-) of the second OP amplifier OP2, and a reference power is supplied to the negative input terminal (-) between the negative input terminal (-) and the ground power supply (GND). The third diode D3 is connected. That is, the voltage across the negative input terminal (−) is not 12V, but a voltage between 0.7V and 1.2V, which is a threshold voltage (Vth) of the third diode D3, is provided as a reference voltage. After that, the threshold voltage Vth is assumed to be 0.7V and will be described. That is, when a voltage value greater than 0.7 V is applied to the positive input terminal (+) of the second OP amplifier OP2, the control transistor TR1 is turned on. When 0.7 V or lower voltage is applied, the control transistor TR1 is applied. Is turned off. The positive input terminal (+) of the second OP amplifier OP2 is connected to the output terminal of the threshold setting section 9, and the amplified operating threshold CL from the threshold setting section 9 is input. When the main power supply unit 1 generates a certain amount of electricity or more, the output signal that satisfies the operating threshold CL set by the variable resistor R _G of the threshold setting unit 9 is amplified and the sub power driver 9 Supplied to. At this time, if the amplification is sufficient, the voltage input to the positive input terminal (+) of the second OP amplifier OP2 is greater than the reference voltage so that the second OP amplifier OP2 operates the control transistor TF1. On the other hand, when the amount of electricity generated by the main power supply unit 1 does not satisfy the operation threshold amount CL set by the threshold setting unit 9, the output signal that is not amplified is positively input of the second OP amplifier OP2. It is input to the terminal (+). As a result, the voltage input to the positive input terminal (+) is not greater than the reference voltage, so that the turn-on signal of the control transistor TR1 is not supplied to the second OP amplifier OP2, so that the control transistor TR1 is turned on. Will remain off.

On the other hand, the control transistor TR1 connects or disconnects the sub power supply 3 that maintains the floating state through turn-on and turn-off with the ground power GND, thereby operating the sub power supply 3. Control. This will be described in more detail with reference to FIG. 5.

FIG. 5 is a circuit diagram illustrating an example in which the sub power supply of FIG. 1 is implemented as an actual circuit.

Referring to FIG. 5, the sub-power supply unit 3 maintains or cuts off power supply from the main power supply unit 1 to the sub-socket 13 under the control of the sub-power driver 7 to supply the sub-socket 13. Supply or cut off power. The sub power supply 3 may be implemented by the relay switch SW1 and the fourth diode D4 as shown in FIG. 5. Here, the fourth diode D4 protects the circuit and applies a clamping function against the overvoltage when the reverse voltage is applied. The relay switch SW1 of the sub power supply unit 3 is supplied with power to the multi-outlet and circuit power of about 12V or 24V is supplied to maintain a floating state. In this way, the relay switch SW1 maintaining the floating state is connected to the ground power source GND according to the on / off of the control transistor TR1 of the sub-power driver 7, or the sub switch from the main power supply 1 is maintained. The power supply to the socket 13 is controlled. That is, when the control transistor TR1 of the sub-power driver 7 is turned on, the floating relay switch SW1 is connected to the ground power source GND to complete the circuit, whereby a current flows, and the relay switch SW1 Is operated to transfer power from the main power supply 1 to the sub-socket 13. On the other hand, when the control transistor TR1 is turned off, the relay switch SW1 is switched or held in a floating state, so that the relay switch SW1 is turned off, and thus the power supply from the main power supply 1 is cut off. .

FIG. 6 is a circuit diagram illustrating an example in which a mode switching unit of a power saving multi-outlet is further added and implemented as an actual circuit.

Referring to FIG. 6, the multi-outlet according to the present invention may further include a mode switching unit 15. The mode switching unit 15 may supply power only when the sub-socket 13 is electrically used by the main power supply unit 1 under the control of the sub-power driver 7 as described with reference to FIGS. Irrespective of the electricity use of the supply unit 1 serves to switch the function to use as an independent power source. To this end, the mode switching unit 15 is disposed between the threshold setting unit 9 and the sub power supply driving unit 7 to switch the circuit.

That is, when the first node N1 and the reference node N0 are connected to each other as shown in FIG. 6A, as described above, the power supply or the power supply of the sub-power supply unit 3 depends on the electricity used by the main power supply unit 1. It can be used as a dependent mode to control supply interruptions.

On the contrary, when the second node N2 and the reference node NO are connected to each other as shown in FIG. 6B, the sub-socket 13 may be used as an independent power source irrespective of electricity use of the main power supply unit 1. Will be.

Since (a) of FIG. 6 has been described above, only the circuit operation in the case of (b) will be described. As described above, a reference voltage of about 0.7 V is applied to the negative input terminal (−) of the second OP amplifier OP2 by the third diode D3. At this time, when the reference node N0 and the second node N2 are connected to supply the circuit power 12V, the second OP amplifier OP2 operates the control transistor TR1 to relay the sub-power supply unit 3. The switch SW1 is turned on. Through this, the mode switching unit 15 is switched to the non-dependent mode, and the sub-socket 13 can be used as an independent power source regardless of the electric consumption of the main power supply unit 1 while the circuit power is supplied.

FIG. 7 is a circuit diagram illustrating a circuit power supply unit supplying circuit power for the operation of the threshold setting unit and the sub power supply driving unit of FIG. 1.

Referring to FIG. 7, the power-saving multi-concentrator according to the present invention requires a DC voltage of about 10V because it uses an IC element such as an OP amplifier. To this end, the power saving multi-outlet according to the present invention includes a circuit power supply unit 19 as shown in FIG.

The circuit power supply unit 19 includes a decompression resistor Rv and a decompression capacitor Cv for stepping down the 110V or 220V used power input to the main power input unit 1 with a circuit power of about 10V. A rectifier circuit composed of diodes D5, D6, D7, and D8 for converting the power supply into a direct current power source, and smoothing capacitors C2 and C3 for increasing the smoothness of the converted direct current power source.

The rectifier circuit can be either a half-wave rectifier circuit or a full-wave rectifier circuit. However, in the case of the half-wave rectifier circuit, a full-wave rectifier circuit such as a bridge rectifier circuit can be adopted because there is a risk of disconnection of the switching operation and a malfunction. desirable.

8 is a block diagram showing the configuration of a power saving multi-outlet having a remote control unit.

Referring to FIG. 8, the power saving multi-outlet according to the embodiment of the present invention may include a remote control unit 37 instead of the above-described threshold setting unit.

The remote controller 37 forms a communication channel with the external controller 45, and supplies a power control signal from the external controller 45 to the sub power driver 39 to control the sub power supply 33. . Here, the external control device 45 means a terminal device such as a computer, a microcomputer, a PDA that can communicate with the remote control unit 37. The remote control unit 37 provides the detection electric quantity SP supplied from the electric quantity measuring unit 35 to the external control device 45, and controls the power supply from the external control device 45 provided with the detection electric quantity SP. The signal is supplied and supplied to the sub power driver 39. To this end, the remote control unit 37 uses a wireless data communication method such as Bluetooth, Zigbee, WLAN, a wired data communication method using a USB, serial / parallel port and a wired network, and a power line communication method such as a power line communication (PLC). It is possible to implement. In particular, it is most preferable to use a PLC communication method that enables communication using a power line without providing a separate communication line in terms of economical and circuit complexity reduction. On the other hand, the external control device 45 monitors the detected electricity amount SP by a power control application program or the like, and software-implements the relationship between the detected electricity amount SP and an operating threshold value thereof to implement the sub-power driver 39. It is possible to control.

FIG. 9 is a circuit diagram showing a circuit example for implementing the configuration of FIGS. 1 to 8 on an actual printed circuit board.

Referring to FIG. 9, the main power supply unit 50, the sub power supply unit 51, the electric quantity measurement unit 53, the threshold value setting unit 55, the mode switching unit 56, and the sub power driver 57 are formed on the printed circuit board. ), A circuit power supply 59 is formed. In addition, the overcurrent blocking unit 61, the filter unit 63, the surge blocking unit 65, and the operation alarm units 67 and 69 are further formed on the printed circuit board.

1 through 8 illustrate the configuration of each unit, for example, of a circuit mounted on a printed circuit board, and thus descriptions of overlapping contents will be omitted.

The over-current blocking unit 61 protects the circuit and the device from the over-current by blocking the over-current generated from the external, due to excessive operation of the socket connection device or abnormal operation such as a connection device. To this end, the overcurrent blocking unit 61 may be implemented as a fuse circuit, but it is inconvenient to reuse it when returning to the normal state, and thus, it is preferable to adopt a bimetal overcurrent relay or an electronic over current relay (EOCR). desirable.

The filter unit 63 removes external power supply noise included in the external power supply. To this end, the filter unit 63 includes one or more capacitors and inductors. FIG. 9 illustrates an example in which an L-type, pi-type, and inverse L-type composite filter is implemented by using four capacitors and a solenoid inductor.

The surge blocking unit 65 protects the circuit and the connection device by removing the surge voltage and the surge current generated during the use of the multi-outlet. To this end, the surge interruption unit 65 can be easily implemented using an element such as one or more varistors or variable resistors.

The operation alarms 67 and 69 inform the user whether the external power is supplied and whether the sub power supply 51 is operated. To this end, the operation alarm unit 67, 69 can be implemented using the LED as shown in Figure 9, in addition, it is also possible to use a beep generator for generating a beep sound at a predetermined period.

Figure 10a is a perspective view showing an actual production example of a power saving multi-outlet in accordance with an embodiment of the present invention. Referring to FIG. 10A, first, a plug-in cord 91 may be connected to a 220V or 110V AC power source. Through the plug-in cord 91, the wall outlet or the like can be used to connect the multi-outlet 90 of the present invention. In the overcurrent blocking device 92 and the multi-outlet 90, a general power socket 93, a main socket 94, a sub socket 95, and an operation panel 99 are formed. The overcurrent cutoff device 92 is composed of a LED for emitting light and a switch for operating the overcurrent cutoff function to the user so that the user knows whether the overcurrent cutoff function is operated.

The socket is composed of a general power socket 93, the main socket 94, the sub-socket 95. The general power socket 93 is expressed as an example to show that it can be configured separately, and the general power socket 93 may also be used or configured by replacing the main power socket 94. In addition to the general power socket 93, a plurality of sub-sockets 95 that operate independently or independently of the main socket 94 according to the operation of the main socket 94 and the operation panel 99 connected to the main power supply unit described above are provided. Can be configured. In FIG. 10A, four subsockets 95 are shown.

In addition, an operation panel 99 is configured at one side of the multi-outlet 90. The operation panel 99 may include a mode changeover switch 96, an adjustment slider 97 for setting a threshold value, and an operation display lamp 98. As described above, the mode changeover switch 96 controls whether the sub-socket 95 is controlled by the amount of electricity used in the main socket 94 or is used as a separate power socket separate from the main socket 94. As an example, the above-described mode switching unit is actually implemented. The adjustment slide is for setting the operation threshold and can be adjusted clockwise or counterclockwise to determine the operation time of the sub-socket 95. In addition, it is convenient for the user to confirm that the operation display lamp 98 is composed of two or more. In the case of two, one indicates whether the power supply is used, and the other indicates whether the power supply is supplied to the sub-socket 95 so that the user can use the multi-concentration of the present invention more conveniently. do.

Figure 10b is an exemplary view showing a modification to the socket of the present invention, an exemplary view showing a case where the terminal for 110V and 220V is provided together.

Referring to FIG. 10B, the circuit power supply unit of the multi-outlet of the present invention has a feature of supplying both 110V and 220V power supplies to the circuit power supply. Therefore, when the switching switch and the small transformer for switching 110V and 220V on the main power supply side, it is possible to supply both 110V and 220V to the power supplied to the device through the socket.

In this case, since the plug of the 110V and 220V-enabled devices is different, it must be provided in the socket. In the case of FIG. B, the socket holes 84 and 82 to which the plug-in terminal inside the socket 80 are coupled are divided into a 220V socket hole 84 and a 110V socket hole 82. Even if you are using a 110V device, if you use a 220V plug-in adapter, you can receive 110V through the 220V socket, but in this case, the user may be confused whether the user uses the 110V device or the 220V device. Therefore, it is possible to eliminate such a mistake by configuring the separate socket holes (82, 84). In particular, when the socket holes 82 and 84 are configured as shown in FIG. 9, since the power supply is not supplied to the 110V socket hole 82 while 220V is supplied, it is possible to eliminate the possibility of device damage. Do. In FIG. 10B, the 110V socket hole 82 and the 220V socket hole 84 are disposed at an angle of 90 degrees, but the angle may have any angle as long as the two socket holes 82 and 84 can be distinguished. . In addition, each of the main socket and the sub-socket may be formed by dividing into a 110V dedicated socket and a 220V dedicated socket.

11 is a flowchart illustrating a method of driving a power saving multi-outlet according to an exemplary embodiment of the present invention.

Referring to FIG. 11, according to an embodiment of the present invention, a method of driving a power saving type multi-outlet includes a first step (S1) in which external power is applied to at least one main socket by a main power supply unit, and an electrical quantity measuring unit to the main socket. A second step S2 of measuring the amount of electricity supplied and creating a detected amount of electricity; a third step S3 of setting an operating threshold amount by the threshold value setting unit; and a fourth step of converting the detected amount of electricity by the detected amount of electricity and the operating threshold amount; Step S4, a fifth step S5 of generating an on or off control signal for controlling the sub power supply by using the detected amount of electricity converted by the sub power driver and one sub power supply by the on or off control signal. And a sixth step of relaying an external power source to the above-described sub-sockets.

In the first step S1, the main power supply unit is connected to an external power source, and supplies 110 V or 220 V AC power supplied to the main socket to the main socket.

In the second step S2, when an external device is connected to the main socket, and the electricity amount such as power, voltage or current is consumed, the electricity quantity measuring unit detects this and creates the detected electricity quantity. The detection electric quantity and the operating threshold amount generated by this second step S2 determine the interruption or supply of the power supplied to the sub-power.

The third step S3 is a step in which an operating threshold which is an operating threshold level for interrupting or energizing the power supply of the sub-socket is set by the threshold setting unit. The second step S2 enables the user to autonomously control the interruption or supply of the sub-socket by setting an operating threshold differently according to the device connected to the main socket.

The fourth step S4 is a step of amplifying and converting the detected electric quantity by the operation threshold set in the third step S3. The operation threshold set in the third step S3 is used to determine the OP amplifier amplification ratio of the threshold setting section as described above, and the detected electric amount is amplified and supplied to the sub power supply driver according to the amplification ratio.

The fifth step S5 is a step in which the sub power supply driver operates by the detected electric amount in the fourth step S4. When the detection electric quantity amplified in the fourth step S4, that is, the conversion detection electric charge is supplied to the sub power supply driving unit in the fifth step S5, the OP amplifier of the sub power supply driving unit compares the conversion detection electric quantity with the reference voltage, thereby providing a negative power supply. The on / off control signal of the control transistor for controlling the operation of the supply unit is generated.

In the sixth step S6, the control transistor is turned on or off in accordance with the on / off control signal provided from the OP amplifier of the sub-power driver, and thus the relay switch of the sub-power supply is turned on or off, and thus the sub-power is supplied from the main power supply. Power supplied to the server socket is maintained or cut off through the supply unit.

12 is a flowchart illustrating the third and fourth steps of FIG. 1 in more detail.

Referring to FIG. 12, in the third step S3 or the fourth step S4, the op amp amplification ratio of the threshold setting unit is set by the first sub-step S10 in which the threshold setting unit receives the detected electric quantity from the electricity quantity measuring unit. The second sub-step S20, the third sub-step S30 in which the detection electric charge is amplified by the amplification ratio, and the conversion detection electric charge is generated, and the fourth sub-step S40 for supplying the conversion detection electric charge to the sub-power driver. Can be detailed.

FIG. 13 is a flowchart illustrating the third and fourth steps in detail when the remote control unit of FIG. 1 is provided.

Referring to FIG. 13, the third step S3 or the fourth step S4 includes the fifth sub-step S15 in which the operation threshold is set in the external control device, and the external control device receives the detected electric charge from the electricity measurement unit. The sixth sub-step S25, the seventh sub-step S35 in which the external control device compares the operation threshold value and the detected electric quantity, and generates a drive control signal for controlling the operation of the sub-power driver by the external control device according to the comparison result. An eighth sub-step S45 and a ninth sub-step S55 for supplying the generated driving control signal to the sub-power driver may be detailed.

In the fifth sub-step (S15), assuming that the external control device is a device capable of driving a control application program such as a computer or a PDA terminal, the user inputs a numerical value into the control application or provides a user interface provided by the control application. Adjust the threshold for operation.

In a sixth sub-step S25, a communication channel is formed between the external controller and the remote controller, and the detected electric quantity is transmitted from the remote controller to the external controller through the communication channel.

In the seventh sub-step S35, the external controller compares the operation threshold amount set by the user with the detected detection amount. That is, the external control device determines that the device connected to the main socket is in normal operation when the detected electric quantity is larger than the operation threshold, and selects the power supply to the sub socket. On the other hand, the external control device determines that the device connected to the main socket has stopped operating when the amount of detected electricity is smaller than the operation threshold, and cuts off the power supply to the sub-socket.

The eighth sub-step S45 is a step of generating a driving control signal for controlling the sub-power driver according to the determination result of the seventh sub-step S35. That is, when the external controller selects the power supply to the sub-socket in the seventh sub-step S35, a turn-on driving control signal for operating the control transistor of the sub-power driver is generated. On the other hand, when the external control device selects the power cutoff to the sub-socket in the seventh sub-step S35, a turn-off driving control signal for turning off the control transistor of the sub-power driver is created.

In the ninth sub-step S55, the generated turn-on or turn-off driving control signal is transmitted to the multi-outlet through a communication channel between the external control device and the remote control unit, and the sub-power driver and the sub-power supply unit operate according to the driving control signal. Done.

FIG. 14 is a flowchart illustrating the fifth and sixth steps of FIG. 11 in detail.

Referring to FIG. 14, the fifth step S5 or the sixth step S6 includes a tenth sub-step S100 in which a reference voltage is set in the sub-power driver, and an eleventh sub-step in which the converted detection amount is compared with the reference voltage. (S110, S120), Twelve sub-steps (S130) of creating an on control signal when the result of the comparison detection detection electricity is greater than the reference voltage, and a thirteenth sub-step of supplying power to the sub-socket by the sub-power supply according to the on-control signal (S140), when the result of the comparison is that the detected detection amount is less than or equal to the reference voltage, the fourteenth sub-step (S135) of creating an off control signal, and the fifteenth step of supplying power to the sub socket according to the off-control signal; Sub-step S145 and the sixteenth sub-step S150 of determining whether to update the converted detection amount can be detailed.

In the tenth sub-step S100, a reference voltage of about 0.7 V is determined by a diode connected to the OP amplifier positive input terminal (+) of the sub-power driver. That is, the reference voltage can be changed by changing the diode connected to the OP amplifier or adding a resistor. This reference voltage is used as a comparison value with the conversion detection electric quantity as described above.

In the eleventh sub-steps S110 and S120, the sub-power driver compares the converted detection amount with the reference voltage by the OP amplifier.

As a result of the comparison between the eleventh sub-steps S110 and S120, when the converted detection amount is greater than the reference voltage, in the twelfth sub-step S130, the OP amplifier of the sub-power driver generates an ON control signal for turning on the control transistor. To the control transistor.

As a result, the control transistor is turned on in the thirteenth sub-step (S140). As a result, the relay switch of the sub-power supply unit is turned on so that power from the main power supply unit is supplied to the sub socket through the sub-power supply unit.

On the other hand, in the comparison result of the eleventh sub-step (S110, S120), when the conversion detection electricity amount is less than the reference voltage, in the fourteenth sub-step (S135), the OP amplifier of the sub-power driver is turned off control signal for turning off the control transistor Create and provide to the control transistor.

Then, in the fifteenth sub-step S145, the control transistor is turned off, and thus, the relay switch of the sub-power supply unit is switched from turn-on to turn-off, or maintains the turn-off state to cut off power from the main power supply from the sub-power supply unit. do.

In addition, it is determined whether the conversion detection electricity amount is updated in the sixteenth sub-step S150, and if the conversion detection electricity amount is updated, the sixteenth sub-step S150 is repeated from the eleventh sub-step S110.

In addition, the driving method of the power-saving multi-concentration described above includes a seventh step of removing noise introduced by an external power source, an eighth step of blocking an overcurrent generated by an external device or an external power source connected to a socket, or an inflow by an external power source. It may further comprise at least one of the ninth step of blocking the surge voltage or surge current.

Energy-saving multi-outlet and its driving method according to the present invention is connected to the main socket, the operation threshold is adjusted according to the power consumption of the main device to reduce the automatic power cut off during normal operation, and the sub-socket automatically turns off the power as needed. Provides the effect of excluding and using.

The power-saving multi-concentration and the driving method thereof according to the present invention provide a threshold setting unit for adjusting the operation threshold appropriately for a main device connected to the main socket, so that a user can specify an appropriate operation threshold level for each device. In addition, it provides an effect of preventing the occurrence of an incorrect power socket off.

Power-saving multi-concentration and its driving method according to the present invention, by making the threshold setting part easily implemented by a variable resistor and an op amp, it is possible to prevent the increase in manufacturing cost, simplify the circuit configuration, and increase the design freedom do.

The power-saving multi-concentration and its driving method according to the present invention allow to measure electric power of various types such as power, current, voltage use of the main power supply unit, and provide high-capacity electricity measurement at low cost by providing an electric current measuring unit using an image current transformer. Provide the effect of enabling it.

The power-saving multi-concentrator and its driving method according to the present invention utilize a sub-power supply unit having a relay switch and a sub-power driver having an op amp and a control transistor to reduce the production cost and simplify the circuit. It provides the effect of enabling implementation.

Finally, the power-saving multi-outlet and the driving method thereof according to the present invention, by controlling the power supply to the sub-socket through a remote control unit connected to the external device in a variety of communication methods, it can be used for a variety of purposes, In addition, it provides an effect that can conveniently perform power control.

In addition, preferred embodiments of the present invention, which are disclosed for the purpose of illustration, those skilled in the art will be capable of various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and changes belong to the following claims Should be seen.

Claims (30)

A main power supply for supplying main power to at least one main socket; A sub-power supply for receiving power selectively from the main power supply and supplying power to at least one sub-socket provided separately from the main socket; An electric quantity measuring unit detecting an electric quantity of the main power source; When the electric quantity of the main power source is smaller than the operating threshold value, the cutoff signal for interrupting the power supply to the sub-power supply unit is generated by comparing the electric quantity of the main power source and the operation threshold value detected by the electric quantity measuring unit. A sub-power driver for generating a supply signal for maintaining a power supply to the original supply unit; And And a mode switching switch for selecting whether to control the sub-socket by the amount of electricity used in the main socket or to be used as a power socket separate from the main socket. delete delete The method of claim 1, wherein the electricity amount of the main power source, Power-saving multi-outlet, characterized in that at least one of reactive power, active power, current or voltage. The method of claim 1, wherein the electrical measurement unit, Energy-saving multi-outlet, characterized in that for detecting the amount of electricity flowing from the main power supply to the main socket. The method of claim 5, wherein the electrical measurement unit, Energy-saving multi-outlet, characterized in that the current transformer including at least one of winding current transformer, rod current transformer, through-current current transformer, tertiary winding current transformer, multi-core core current transformer. The method of claim 6, wherein the current transformer, Power-saving multi-outlet, characterized in that the video current transformer. The method of claim 7, wherein the electrical measurement unit, And at least one diode for clamping the detected amount of electricity. delete The method of claim 1, wherein the secondary power supply unit, And a relay switch which maintains or cuts off power supply from the main power supply unit according to a power supply or a power cut control of a transistor for controlling power supply and power cutoff of the sub-power driver. delete delete delete delete The method of claim 1, wherein the main power supply unit, Power-saving multi-outlet, characterized in that it further comprises; overcurrent blocking for controlling the overcurrent. The method of claim 15, wherein the overcurrent blocking unit, Power-saving multi-outlet characterized by a bimetal overcurrent relay or an electronic overcurrent relay (EOCR). The method of claim 1, wherein the main power supply unit, Power-saving multi-outlet, characterized in that it further comprises; The method of claim 1, wherein the main power supply unit, Energy-saving multi-conductor further comprising a filter unit having one or more capacitors or inductors. delete The method of claim 1, wherein the main power supply unit, Power-saving multi-outlet, characterized in that it further comprises a transformer for reducing the 220V power supply to 110V power supply or boosting 110V power supply to 220V power supply The method of claim 20, wherein the main socket or the sub socket, And a low voltage socket hole to which the 110V power is supplied and a high voltage socket hole to be distinguished from the low voltage socket hole in the same socket and to supply the 220V power. The method of claim 20, wherein the main socket or the sub socket, The power-saving multi-outlet, characterized in that the 110V power supply socket for 110V power supply and 220V power supply socket is divided into provided. delete delete delete delete delete delete delete delete

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