Background Art In general, an outlet is fixed on the wall or on the floor of rooms and an user inserts a plug for an electric appliance into the outlet to use it. However, in case there are lack of connecting holes of a fixed outlet or in case a fixed outlet is distant from electric appliances, a movable multi-outlet as shown in FIG. 1 is used for the convenience of use. If a plug 10 of the outlet is inserted in a connecting hole of an outlet fixed on the wall, the power is supplied from a fixed outlet to the connecting holes 20 of the outlet which are arranged in parallel.

When a plug of an electric appliance is inserted into the connecting hole 20 of the outlet in no use of electric appliances, the remaining current continuously flows through electric appliances, thereby resulting in the undesired power consumption and the electromagnetic wave is continually radiated from electric appliances, thereby being is harmful to the human body and resulting in the malfunction of electric appliances.

Furthermore, in order to prevent the remaining current flowing, it is inconvenient for the user to pull out all plugs of electric appliances from the connecting holes of the outlet one by one in no use.

So as to the above problem, a switch 30 which turns on or turns off the power is installed in the outlet.

When electric appliances are not used, the user turns off the switch 30 to block the power supply. Therefore, even though plugs of electric appliances are not pulled out from the outlet, generation of the remaining current and electromagnetic wave are prevented.

However, the prior outlet has disadvantages as follows. When the switch 30 turns off, the power supply is blocked to all electric appliances which are connected to the connecting holes of the outlet and therefore all electric appliances can not used. On the other hand, when the switch 30 turns on, the remaining current still flow through the electric appliance which are connected to the connecting holes of the outlet and are not used, thereby resulting in the power consumption and occurrence of the electromagnetic wave. Furthermore, because plugs of electronic appliances which are connected to connecting holes of the multi-outlet are appeared on the outside, it is not good to view and the danger of the electric shock is accompanied when the metallic foreign substance or the portion of the body, for example the fingers are contacted to the connecting holes of the outlet with children's play and adult's carelessness.

Disclosure Of Invention It is an object of the present invention to an outlet where separate switches are disposed to be united with the plural connecting holes and are for separately supplying a power to the plural connecting holes.

It is another object of the present invention to an

outlet where a separate switch portion including a plurality of switches are disposed to be spaced in a selected distance from a connecting hole portion including a plurality of connecting holes by an extended conduction line.

According to an aspect of the present invention, there is provided to an outlet, comprising: a separate switch portion for branching a power supplied from a power supply line and for separately switching a power to a connecting hole portion including a plurality of connecting holes, the separate switch portion including a plurality of switches; and the connecting hole portion for supplying the power which is supplied according to the switching state of the separate switch portion to electric appliances, the connecting hole portion being formed being united with the separate switch portion.

According to another aspect of the present invention, there is provided to an outlet, comprising: a separate switch portion for branching a power supplied from a power supply line and for separately switching a power to a connecting hole portion including a plurality of connecting holes, the separate switch portion including a plurality of switches; an extended conduction line for supplying the power to the connecting hole portion; and the connecting hole portion for supplying the power from the extended conduction line to electric appliances, the connecting hole portion being spaced apart from the separate switch portion by the extended conduction line.

The outlet of the present invention further comprises a main switch for collectively breaking the power which is supplied to a plurality of switches of the separate switch portion through the power supply

line.

Brief Description of Drawings FIG. 1 is a view illustrating the conventional outlet; FIG. 2 is an exterior view of an outlet in accordance with an embodiment of the present invention; FIG. 3 is a circuit diagram of the outlet in FIG. 2; FIG. 4 is a perspective view of an outlet in accordance with another embodiment of the present invention; and FIG. 5 is a circuit diagram of the outlet in FIG. 4.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 2, an outlet of an embodiment of the present invention includes a connecting hole portion 120 and a separate switch portion 110 which is disposed to be united with each other. The connecting hole portion 120 includes a plurality of connecting holes 121,122,123 and 124 and the separate switch portion 110 includes a plurality of switches 111,112,113 and 114 which corresponds to the connecting holes one by one to separately supply a power to the connecting holes 121,122,123 and 124.

If a plug of a power supply line 100 of the present invention is inserted in a connecting hole of an outlet (not shown in drawings) fixed on the wall or on the floor of rooms and any one of a plurality of switches 111,112,113 and 114 in the separate switch portion 110 turns on, which corresponds to one of a plurality of connecting holes which the power is to be

supplied thereto, the power is supplied to the connecting hole corresponding to the switch which turns on.

The internal circuit of the outlet is shown in FIG. 3. One-sided terminals of the switches 111,112,113 and 114 of the separate switch portion 110 are connected to a power AC in parallel and another-sided terminals of the switches 111,112,113 and 114 are connected to one-sided terminals of the connecting holes 121,122, 123 and 124 of the connecting hole portion 120 in series, respectively where another-sided terminals are grounded.

If the user turns on the switch 111 of the separate switch portion 110, the power AC is supplied to the connecting hole 121 of the connecting hole portion 120 which is connected to the switch 111 in series so that an electric appliance which a plug thereof is inserted into the corresponding connecting hole 121 can operate.

At this time, even though plugs of electric appliances are inserted in another corresponding connecting holes 122,123 and 124, because the switches 112,113 and 114 turn off, the power supply to the connecting holes 122, 123 and 124 is completely blocked.

Therefore, the undesired power consumption due to the remaining current and the radiation of the electromagnetic wave can be prevented. Of course, if the user turns on any one of the selected switches 122,123 and 124, the power is also supplied to the connecting hole corresponding to the switch which turns on and the electric appliance connected to the connecting hole can operate. Consequently, when the user turns on only switches corresponding to the selected connecting holes, the power is then supplied to the selected connecting

holes and it is not supplied to the unselected connecting holes.

On the other hand, the outlet includes a main switch 130 for collectively turning on or off a plurality of connecting holes of the connecting hole portion 120, which connected between the power AC and the separate switch portion 110 in series. In case turning off the main switch 130, although the switches 111 through 114 of the separate switch portion 110 are turn on, the power is not supplied to the connecting holes 121,122,123 and 124. For example, when plugs of electric appliances are inserted into the connecting holes 121,122,123 and 124 of the connecting hole portion 120 and the corresponding switches 111,112,113 and 114 turn on, if the user turns on the main switch 130, the power AC is collectively supplied to_ the connecting holes 121,122,123 and 124 of the connecting hole portion 120 and all electric appliances can operate. On the other hand, in case no use of all electric appliance, if the main switch 130 turns off, the power is not collectively supplied to all electric appliances.

Preferably, unipolar switches as well as multipolar switches for completely blocking the remaining current of the negative power may be used as the switches 111, 112,113 and 114 of the separate switch portion 120 and the main switch 130.

FIG. 4 shows an outlet according to the another embodiment of the present invention. The outlet of another embodiment includes a switch box 210 and a connecting hole portion 260 and an extended conduction line portion 250 for supplying a power from the switch box 210 to the connecting hole portion 260. The switch

box 210 includes a separate switch portion 220 including a plurality of switches 221,222,223,224 and 225 for branching a power supplied from a power supply line 200 and separately switching it to the connecting holes 261, 262,263,264 and 265 of the connecting portion 260. The connecting hole portion 260 includes a plurality of connecting holes 261,262,263,264 and 265 which are spaced apart from the switches 221,222,223,224 and 225 by the respective extended conduction lines 250. The outlet includes a main switch 230 for collectively breaking the power supplied to the separate switches 221,222,223,224 and 225 through the power supply line 200. The outlet further includes a timer for generating the signal to turn on or off the separate switches 221, 222,223,224 and 225 and the main switch 230.

The power supply line 200 which a plug is connected thereto is connected in parallel to a plurality of switches 221,222,223,224 and 225 of the separate switch portion 220 which are disposed in the switch box 210 and the switches 221,222,223,224 and 225 of the separate switch portion 220 are respectively connected to the connecting holes 261,262,263,264 and 256 of the connecting hole portion 260 which are spaced in a selected distance from the switch box 210 by the extended conduction lines 250 so that the power is supplied to the connecting holes by the switching operation of the corresponding switches in the separate switch portion 220. The main switch 230 is also disposed in the switching box 210 so as to collectively breaking the power supplied to the separate switch portion 220 from the power supply line 200.

Accordingly, if a plug of the outlet of the present invention is inserted into the outlet fixed on the wall

or on the floor and the main switch 230 of the switch box 210 and corresponding ones of the switches 221,222, 223,224 and 225 of the separate switch portion 220 then turn on, the power AC is supplied to the corresponding ones of the connecting holes 261,262,263,264 and 265 of the connecting hole portion 260 corresponding to the switches being turned on.

The switches of the separate switch portion 220 corresponds to the connecting holes of the connecting hole portions 260 by one to one. A bipolar switch for simultaneously breaking a positive terminal and a negative terminal is preferably used as the main switch 230 and the switches of the separate switch portion 220.

A unipolar switch for breaking one of a positive terminal or a negative terminal may be used. The extended conduction line 250 has a predetermined length according to use of the outlet.

FIG. 5 shows the internal circuit diagram of the outlet of another embodiment. One-sided terminal of the main switch 230 of the switch box 210 is connected to a power AC in series and another-sided terminal of the main switch 230 is connected in parallel to one-sided terminals of the switches 221,222,223,224 and 225 of the separate switch portion 220 in the switch box 210.

Another-sided terminals of the switches 221,222,223, 224 and 225 are connected to one-sided terminals of the connecting holes 261,262,263,264 and 265 of the connecting hole portion 260 which another-sided terminals thereof are grounded through the extended conduction line 250 in series.

When the main switch 230 and the separate switch portion 220 are constituted by bipolar switches, the positive (+) power is supplied to the positive (+)

switches 221,222,223,224 and 225 of the separate switch portion 220 through the positive (+) switch of the main switch 230. The positive (+) power is then supplied to the one-sided terminals of the connecting holes 261,262,263,264 and 265 of the connecting hole portion 260 through the extended conduction lines 250.

The another-sided terminals of the connecting holes 261,262,263,264 and 265 are connected to the negative (-) switches 221', 222', 223', 224'and 225'of the separate switch portion 220 through the extended conduction lines 250 and the negative (-) switches 221', 222', 223', 224'and 225'are connected to the negative (-) switch of the main switch 230, thereby finally connecting to the negative (-) power.

The use and operation state of the outlet as above constructed will be described hereinafter. If the user puts the switch box 210 of the outlet on the table and put down the connecting hole portion 260 of the outlet under the table by the extended conduction line 250, the power lines of the electric appliances which are connected to the connecting hole portion 260 is not seen. Under this state, if the user turns on corresponding ones of the switches corresponding to the connecting holes which electric appliance are connected thereto, for example the switches 221 and 221'which corresponds to the connecting hole 261, the power is supplied to the connecting hole 261 connected to the switches 221 and 221'through the extended conduction line 250 so that it supplied to the electric appliance which is connected to the connecting hole 261.

At this time, even through electric appliances are connected to another connecting holes 262,263,264 and 265, because the switches 222,223,224 and 225 and

222', 223', 224'and 225'turns off, the power supply is completely blocked so that the undesired power consumption and the electromagnetic wave radiation can be prevented.

That is, the positive (+) power as well as the negative (-) power supplied to the connecting hole portion 260 of the outlet are completely blocked so that the power consumption due to the remaining current and the radiation of the electromagnetic wave can not raised in this invention.

In another embodiment, at least one or more switch of the main switch 230 and the separate switch portion 220 is turned on or off by the timer switch 240. If the time predetermined by the counter portion 241 of the timer switch 240 reaches, the switches are 242 and 242' turns on or off so that the power supplied to_ the connecting hole 266 through the extended conduction line 250 become broken.

Similarly, if the timer switch 240 is applied to the main switch 230, the power to the connecting hole portion 260 in the outlet is collectively on or off after lapse of the predetermined time.

According to the present invention, the outlet where the plural connecting holes are formed to be united with the plural switches selectively and independently supply the power to only the selected connecting holes, thereby preventing the power consumption due to the remaining current and the radiation of the electromagnetic wave. Furthermore, the switch box including the plural separate switches are spaced from the connecting hole portion in a selected distance through the extended conduction line according to the use of the outlet so that the power lines of

electric appliances connected thereto are not seen and the switches are only exposed, thereby being nice to look at. Besides, it prevents the safety accident such as an electric shock from raising by put the connecting hole portion of the outlet at the place out of children's reach.