KR200351353Y1 - Multi-tap apparatus - Google Patents

Abstract

The present invention relates to a multi-tap device, for connecting a master device such as a computer body, and a master connector connected to a power cord, and at least one slave connector connected in parallel with the master connector to selectively receive power from the power cord. A connection terminal portion having an interlock switch provided to turn on / off electrical connection from a power cord to a slave connector, at least one connector formed to connect an input device of a computer, an input provided at the connection terminal portion and the computer main body; Detects whether the operation signal of the input device of the computer is generated from the relay terminal part and the connection terminal part which can be connected to the connection terminal for the device.If the operation signal is not input for the set time, the interlock switch is turned off. Interlocking adjustment unit to turn on the interlocking switch Equipped. According to the multi-tap device, it is possible to stably control power supply and cutoff by determining whether the master device connected to the master connector is used or not, such as a mouse and a keyboard, to determine whether to supply power to the slave connector. There are advantages to it.

Description

Multi-tap apparatus

The present invention relates to a multi-tap device, and more particularly, to a multi-tap device capable of selectively supplying power to a slave connector for connecting an auxiliary device according to the use of a computer input device.

In order to supply commercial AC power to a plurality of electronic devices, a power strip device capable of supplying power input through a power cord in parallel to a plurality of connectors has been commercialized and widely used.

In such a multi-tap device, a power supply cord and a plurality of connectors are usually connected in parallel with each other, and a power supply switch capable of intermittently supplying current from the power supply cord to each connector is provided.

On the other hand, the computer system allows users to connect and use various peripheral devices such as monitors, printers, scanners, modems, etc. in addition to the main body of the computer, and to install such a computer system in a limited space, an outlet intermittently installed in a house or building. The power strip device is usefully used for the purpose of dividing the power from each device to each device.

Peripherals of such a computer system can perform their functions only when the computer main body is operated. When the computer main body is turned off, power consumption is generated. In addition, the computer that supports the power saving mode operates in the power saving mode to minimize the power consumption when the operation signals of the mouse and keyboard are not input for a certain time while the main body of the computer is turned on, but the peripheral devices maintain the power supply even in this case. This leads to unnecessary power consumption.

Therefore, when the user completes the use of the computer system or operates in the power saving mode, it is necessary to turn off the peripheral devices connected to the computer main body to suppress unnecessary power waste. However, it is inconvenient for the user to operate all the power switches of each peripheral device whenever the computer system is driven and turned off or in the power saving mode, and the peripheral devices are not turned off when the computer is not in use. Many will waste unnecessary power.

In the Korean Utility Model Registration No. 0276671 proposed and registered by the present applicant to solve such a problem, a multi-tap device capable of reducing power consumption required for interlocking control between a master connector and a slave connector is disclosed.

On the other hand, the multi-tap device proposed by the present applicant is to detect the current supplied to the main device through the master connector, and to control the slave connector according to the detected current signal, the interlock control determination range by the ripple of the current detection signal As a result, the circuit design constraints increase.

The present invention was devised to improve the above problems, and an object thereof is to provide a multi-tap device capable of increasing the stability and precision of interlocking control between a master connector and a slave connector.

Another object of the present invention is to provide a multi-tap device capable of controlling the power supply to the slave connector for the peripheral device in accordance with the operation of the input device of the computer.

1 is a perspective view showing a multi-tap device according to the present invention,

2 is a diagram illustrating an interlocking control circuit according to a preferred embodiment of the power strip apparatus of FIG. 1.

<Description of the reference numerals for the main parts of the drawings>

100: power strip device 120: always supply connector

130: master connector 140: slave connector

150: key operation unit 155: interlock switch

170: control unit

In order to achieve the above object, the multi-tap device according to the present invention includes a master connector connected to a power cord; At least one slave connector connected in parallel with the master connector to selectively receive power from the power cord; An interlock switch provided to turn on / off an electrical connection from the power cord to the slave connector; A connection terminal portion having at least one connector configured to connect an input device of a computer; A relay terminal unit capable of connecting the connection terminal unit and a connection terminal for an input device installed in the computer main body; An interlock adjustment unit for detecting whether an operation signal of an input device of a computer is generated from the connection terminal unit, turning off the interlock switch when the operation signal is not input for a set time, and turning on the interlock switch when the operation signal is input; It is provided.

Preferably, the interlock adjustment unit is connected to a power supply line of the connection line from the relay terminal portion to the connection terminal portion so as to be driven by the driving power supplied from the computer main body.

The apparatus may further include a mode selection key for selecting one of a PS2 mode and a USB mode for the input device of the computer to be connected to the connection terminal. The interlocking controller may be configured to select a mode selected by the mode selection key. Accordingly, the signal received through the connection terminal unit is analyzed.

The apparatus may further include a time setting key for allowing a user to set a non-use time corresponding to an off condition of the interlocking switch, wherein the interlocking adjusting unit is configured to input the input device of the computer from the connection terminal unit for the time set by the time setting key. If the operation signal is not input, the interlock switch is turned off.

Hereinafter, a multi-tap device according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

1 is a perspective view schematically showing a multi-tap device according to the present invention.

Referring to the drawings, the power strip apparatus 100 includes a power cord 105, a main body 101, and a relay terminal unit 190.

The power cord 105 is provided with first and second alternating input terminals 105a and 105b and a ground connection terminal 105c. Of course, the power cord 105 is provided with only the first and second AC input terminals 105a and 150b.

The main body 101 is connected via a power cord 105 and an electric wire cable 103.

The main body 101 is provided with a constant supply connector 120, a master connector 130 and a plurality of slave connectors 140 so as to insert a power plug of another electronic device.

The connector 120 is always connected to receive power from the power cord 105, and may be omitted.

The master connector 130 is connected to receive power from the power cord 105 at any time, and may be used by connecting a power cord of a master device, for example, the computer main body 230.

The slave connector 140 is connected so that the power supply can be turned on / off by an interlock switch controlled by the interlock adjustment unit.

It goes without saying that the number of normally supplied connectors 120 and slave connectors 22 can be appropriately determined.

The main body 101 is provided with a connection terminal portion 180 and a key operating portion 150.

The connection terminal unit 180 is provided with two connectors 181 and 182 to connect a computer input device such as a mouse 210 and a keyboard 220.

The connectors 181 and 182 of the connection terminal unit 180 may be applied to either or both of the structure of the PS2 connection method or the structure of the USB connection method. In the example shown, the structure for the PS2 connection is shown. In addition, when the mouse 210 or the keyboard 220 to be used is a USB connection structure, and the connectors 181 and 182 of the connection terminal unit 180 have a PS2 structure, the USB connection structure is switched to the PS2 connection structure. What is necessary is just to apply an adapter (not shown), The structure of an adapter is well-known and detailed description is abbreviate | omitted. Similarly, when the connection terminal 180 formed in the main body 101 is a USB connection method, and the mouse 210 or the keyboard 220 is a PS2 connection structure for use, the above-described adapter may be used.

The relay terminal unit 190 is provided to extend from the main body 101, and two connection cables 191 and 192 are provided to correspond to the connectors 181 and 182 of the connection terminal unit 180, respectively.

The connection cables 191 and 192 of the relay terminal unit 190 have connection lines corresponding to the respective connectors 181 and 182 of the connection terminal unit 180, respectively, and the terminal ends are provided on the computer main body 230. A connector having a structure that can be connected to an input device connector is formed.

The connector provided at the ends of the connection cables 191 and 192 is illustrated as a PS2 connector, and may be formed as a USB connection structure as described above through the connection terminal unit 180. In addition, if necessary, it is of course possible to mount and use the above-described adapter to the connector of the end of the connection cable 191,192.

Unlike the illustrated example, the connection cables 191 and 192 may be formed to be detachably attached to the main body 101.

Therefore, when an input device such as a mouse 210 and a keyboard 220 is coupled to the connection terminal unit 180, and the relay terminal unit 190 is connected to an input device connection terminal of the computer main body 230, the mouse 210 and the input device are connected. The keyboard 220 is driven by the power supplied from the computer main body 230, and the user's operation signals output from the mouse 210 and the keyboard 220 are connected to the computer through the connection terminal unit 180 and the relay terminal unit 190. It is transmitted to the input device terminal of the main body 230.

The key operation unit 150 includes a mode selection key and a time setting key for allowing a user to set whether the mouse 210 or the keyboard 220 connected to the connection terminal unit 180 is a PS2 connection method or a USB connection method. In the illustrated example, mode selection and time setting can be adjusted using four dip switches 151 to 154.

The interlocking adjustment part is provided inside the main body 101, and it is determined whether the operation signal of the mouse 210 or the keyboard 220 is generated from the connection terminal part 180 in the mode selected by the mode selection key of the key operation part 150. If the operation signal is not input for the time set by the time setting key of the key control unit 150, the interlock switch is turned off so that the power supply to the slave connector 140 is cut off. 140, turn on the interlock switch to supply power.

The interlocking adjustment unit and the key operation unit 150 are connected to a power line among the connection lines extending from the relay terminal unit 190 to the connection terminal unit 180 so as to be driven by the power supplied from the computer main body 230.

Although not shown, a light emitting device (not shown) indicating whether power is supplied to the slave connector 140 may be installed. In this case, the light emitting device may be connected to the power supply line to the slave connector 140 at the rear end of the interlock switch.

Reference numerals 121, 131, and 141 denote terminals capable of being connected or selectively connected to the first alternating input terminal 105a, and reference numerals 122, 132, and 142 denote terminals to be connected or selectively connected to the second alternating input terminal 105b. 123 is a terminal connected to the ground connection terminal 105c. Reference numerals are omitted for the ground terminals of the master connector 130 and the slave connector 140 to avoid the complexity of the drawing.

An example of an interlocking control circuit for controlling interlocking of the slave connectors 140 with respect to the master connector 130 of the multi-tap device 100 is illustrated in FIG. 2.

For reference, in FIG. 2, in order to avoid the complexity of the drawing, the connection line of the ground connection line and the corresponding terminal of the power supply line from the ground connection terminal to the ground terminal of each connector 120, 130, 140 is omitted. . Also, the power line is omitted from the connection line extending from the connection terminal unit 180 to the relay terminal unit 190, and only the signal lines 181a and 182a related to the detection of the operation signal are shown to correspond to the respective connectors 181 and 182. .

Referring to the drawings, the master connector 130 is connected to supply lines 103a and 103b connected to the AC input terminals 105a and 105b of the power cord 105, respectively.

Each terminal of the slave connectors 140 is directly connected in common with the first supply line 103a of the two supply lines 103a and 103b and is common with the second supply line 103b via the relay switch 155. Is connected.

Although not shown, the first supply line 103a or the second supply line 103b from the AC input terminals 105a and 105b of the power cord 105 to intercept all the connectors 120, 130 and 140. A main power switch (not shown) may be installed to intercept. In this case, the main power switch is preferably installed so as to be exposed on the main body 101 to enable a user operation.

The relay switch 155 is applied as an interlocking switch and is provided so that the power supply path from any one supply line 103b to the slave connector 140 can be interrupted.

The interlocking adjustment unit includes a control unit 170 and a relay switch 180. In the drawing, the power supply VCC is a power source that is branched from the power supply line among the connection lines extending from the relay terminal unit 190 to the connection terminal unit 180.

The relay switch 180 is controlled by the controller 170 to supply and cut off the current to the relay switch 155.

The key operation unit 150 generates and operates different voltage values by connecting and disconnecting the resistors R3 to R6 connected to the ground terminals by the operation of the four dip switches 151 to 154. 170) can be output. In the illustrated example, the three dip switches 151 to 153 are connected in parallel with the first pull-up resistor R1, and are respectively connected to the corresponding resistance elements R3 to R5 according to the operations of the switches 51 to 53, respectively. And to be separated. Therefore, any one of eight signals distinguishable by the combination of the three dip switches 51 to 53 is input to the controller 170 through the corresponding channel. Therefore, eight signals that can be generated can be used to set eight different times. For example, if the time is set at an interval of 5 minutes, when all three dip switches 151 to 153 are turned off, the time is set to 5 minutes, and if only the first switch 151 is turned on, it is set to 10 minutes. The time can be set in such a manner as to make it possible.

The fourth dip switch 164 is a key for selecting the PS2 mode and the USB mode. The fourth dip switch 164 connects and disconnects the resistor R6 corresponding to the second pull-up resistor R2 to output a voltage signal corresponding to the corresponding channel. It is supposed to be.

The controller 170 inputs a user manipulation signal from the mouse 210 and the keyboard 220 through signal lines 181a and 182a connected to the connection terminal unit 180 according to the time and mode set by the key manipulation unit 150. If it is determined that the user operation signal does not occur for the time set by the key operation unit 150, the relay switch 180 is turned off, and when the user operation signal is generated, the relay switch 180 is turned on.

The controller 170 is provided with a timer (not shown) and a memory device (not shown) that stores information for determining operation signals of each of the PS2 mode and the USB mode.

The operation of the multi-tap device 100 will be described.

In the following description, a power cord of the computer main body 230 is connected to the master connector 130, and peripheral devices such as a monitor, a printer, a speaker, a scanner, and the like are connected to the slave connector 140. The case where the keyboard 220 is connected to the connection terminal unit 180 will be described.

The controller 170 determines whether the user manipulation signals of the mouse 210 and the keyboard 220 are input through the signal lines 181a and 182a connected to the connection terminal unit 180 according to the selected mode, and controls the user for a set time. If it is determined that no signal is input, the relay switch 180 is controlled to be turned off. Then, the relay switch 155 is turned off to cut off the power supply to the slave connector 140 to stop the power supply to the peripheral device.

Meanwhile, the control unit 170 turns on the relay switch 180 when an operation signal is received from the mouse 210 and the keyboard 220 through the connection terminal unit 180. Then, the current is supplied to the relay switch 155 so that power is supplied to the slave connector 140 and power supply to the peripheral device is resumed accordingly.

On the other hand, a relay switch of the type opposite to the above method, that is, a relay switch that is turned off when the current is applied, may be applied.

The multi-tap device 100 can be used for power supply control in addition to a computer and its peripherals, for example, various electronic products used in mutual dependence, such as a television and a video player.

As described so far, according to the multi-tap device according to the present invention, it is determined whether or not the use of the master device connected to the master connector is operated by an input device such as a mouse and a keyboard to determine whether to supply power to the slave connector. Supply and shutdown control has the advantage that can be made stable.

Claims (5)

A master connector connected to the power cord; At least one slave connector connected in parallel with the master connector to selectively receive power from the power cord; An interlock switch provided to turn on / off an electrical connection from the power cord to the slave connector; A connection terminal portion having at least one connector configured to connect an input device of a computer; A relay terminal unit capable of connecting the connection terminal unit and a connection terminal for an input device installed in the computer main body; An interlock adjustment unit for detecting whether an operation signal of an input device of a computer is generated from the connection terminal unit, turning off the interlock switch when the operation signal is not input for a set time, and turning on the interlock switch when the operation signal is input; Multi-tap device comprising a. The multi-tap apparatus according to claim 1, wherein the interlock adjustment unit is connected to a power line among connection lines extending from the relay terminal unit to the connection terminal unit so as to be driven by driving power from the computer main body. The apparatus of claim 1, further comprising a mode selection key for selecting one of a PS2 mode and a USB mode for an input device of the computer to be connected to the connection terminal unit. And the linkage adjusting unit analyzes a signal received through the connection terminal unit according to a mode selected by the mode selection key. The apparatus of claim 1, further comprising a time setting key for allowing a user to set a non-use time corresponding to an off condition of the interlock switch. And the interlocking control unit turns off the interlocking switch when the operation signal of the input device of the computer is not input from the connection terminal unit for the time set by the time setting key. The multi-tap apparatus according to claim 1, further comprising at least one always-supply connector connected in parallel with the master connector to receive constant power from the power cord.