KR100614598B1 - Multi-Functional Outlet - Google Patents

Abstract

The present invention relates to a multi-functional outlet, a plurality of sockets that can accommodate a separate load power plug, and electrically connected to the socket, to detect an abnormal state of at least any one of short circuit, ground fault, overload, short circuit and electric shock And main body having a circuit breaker for electrically disconnecting the power supplied to the socket; And a power extension unit including a main power plug and a power line to supply external power supplied to the main power plug to the breaker through the power line. The circuit breaker includes: a detection circuit including an overcurrent detection circuit for detecting an overload / short circuit and a ground fault tripping circuit for detecting a ground fault / ground fault / electric shock; and the supply unit through an electromagnet type driver connected to the detection circuit. It characterized in that it comprises a two-pole contact main switch for turning off the power, and a test button for artificially testing whether the power is turned off through the main switch when the abnormal state occurs.

Outlet, power strip, ground fault interruption, electric shock, mantissa current, overload, short circuit, ground fault

Description

Multi-Functional Outlet             

1 is an illustration of a multi-function outlet according to an embodiment of the present invention.

2 is a rear view of the multifunctional outlet according to one embodiment of the present invention;

3 is a right side view of the multifunctional outlet according to one embodiment of the present invention;

4 is a front view of the multifunctional outlet according to an embodiment of the present invention.

5 is an electrical connection diagram of the multi-function outlet according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: main body 110: socket

120: breaker 121: main switch

122: test button 123: light emitting means

200: power extension 210: main power plug

220: power line 230: projection

The present invention relates to a multi-functional outlet, and more particularly, a mandatory current that is greater than or equal to a current limit (16 mA or less for men and 10.5 mA or less for men) that can escape from an energized current when the human body is energized. The present invention relates to a multi-functional electrical outlet that provides safety in use by providing a circuit breaker operating in the water and a water repellent protective cover to prevent inflow of water.

In general, a mobile outlet is a device for supplying power to each device by having a plurality of sockets for receiving a power plug of an electronic device or an electric device, and is used in various forms in a home, an office, or an industrial site.

The portable outlet is called a multi-tap or reel power divider, and is connected to any one line of the main power input to the portable outlet as a switch for shutting off the main power and a safety means for preventing an electric accident due to a short circuit and overload. A fuse may be provided to turn off the main power at a predetermined current or more, or a thermostat may be provided to turn off the main power at a predetermined temperature or more.

On the other hand, when the power plug of the device is connected to the mobile outlet by a wet hand, an electric shock accident may occur in which a current of more than a mantissa current flows in the human body.

Such a conventional mobile outlet has a circuit breaker or a thermostat as a means for preventing an electric shock, but the circuit breaker is generally set to a current operated type that operates for 30 seconds or more and lasts for 0.03 seconds. It operates in excess of the bar, which is inadequate as a means for preventing electric shock of the user, and the thermostat operates only when the temperature is higher than a predetermined temperature. In the event of an accident due to a short circuit (short circuit), there is a problem in that the main power is not cut off quickly. .

In addition, the main power switch of the portable outlet is a one-pole contact type that connects or disconnects only one line of the power source to turn the main power on or off. Due to the presence of standby current, there is a problem that a short circuit may occur due to insulation degradation of a wire connected to a mobile outlet. Here, insulation degradation refers to a phenomenon in which a large current flows due to a decrease in electrical resistance between electrically insulated materials.

In addition, the portable outlet has a problem in that when water is introduced into the socket when used indoors or outdoors, it is impossible to prevent a short circuit due to water.

Accordingly, an object of the present invention is to provide a multifunctional outlet that can effectively prevent a short circuit or an electric shock of a user by providing a circuit breaker that operates at a lower current.

Another object of the present invention is to provide a circuit breaker including a switch of a two-pole contact type on the main power line, by turning off the switch in the event of an overload or short circuit, thereby electrically disconnecting all the lines of the main power supply, thereby causing a short circuit due to insulation degradation. It also offers a multifunctional outlet that reduces the likelihood.

Still another object of the present invention is to provide a multifunctional outlet capable of preventing a short circuit due to inflow of water into the socket by providing a cover of a water repellent material.

The present invention for achieving the above object, the present invention relates to a multi-function outlet, a plurality of sockets that can accommodate a separate load power plug, and electrically connected to the socket, a short circuit, ground fault, overload, short circuit and electric shock A main body unit including a breaker for detecting at least one abnormal state and electrically cutting off power supplied to the socket; And a power extension unit including a main power plug and a power line to supply external power supplied to the main power plug to the breaker through the power line. The circuit breaker includes: a detection circuit including an overcurrent detection circuit for detecting an overload / short circuit and a ground fault tripping circuit for detecting a ground fault / ground fault / electric shock; and the supply of the circuit breaker through an electromagnet type driver connected to the detection circuit. It characterized in that it comprises a two-pole contact main switch for turning off the power, and a test button for artificially testing whether the power is turned off through the main switch when the abnormal state occurs.

Preferably, the ground fault tripping circuit is set to detect a ground fault current that lasts less than the mantissa current, that is, 10 mA or less and 0.03 seconds or more.

In addition, the main body, the upper portion includes a water repellent cover for preventing moisture that may be introduced into the socket and the breaker, the cover is an entrance for drawing at least two or more separate power lines in the front and side Characterized in having a.

Also preferably the breaker is characterized in that it is provided with an LED to indicate the state of the power supplied.

In addition, preferably, a projection having a plurality of grooves is formed at a portion where the main body and the power line are in contact with each other so as to prevent moisture that may flow into the main body through the power line.

In addition, the main power plug is characterized in that it is provided with a plurality of long or short grooves, and is recessed in a concave shape so as to be easily gripped by a user using a finger.

More preferably, the body portion, the cover, the main power plug and the power line are characterized in that the flame retardant material.

And preferably, the cover is characterized in that the transparent or translucent material.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

A multifunctional outlet according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 as follows.

1 is an exemplary view of a multi-function outlet according to an embodiment of the present invention, Figure 2 is a rear view of the multi-function outlet according to an embodiment of the present invention, Figure 3 is a multi-function outlet according to an embodiment of the present invention 4 is a front view of the multi-function outlet according to an embodiment of the present invention.

As shown in FIG. 1, the multifunctional outlet is composed of a main body part 100 and a power extension part 200.

The main body 100 may turn off (disconnect) the line of the main power supply when a socket 110 for connecting a separate load power plug and at least one abnormal state among a short circuit, a ground fault, an overload, a short circuit, and an electric shock occur. And a circuit breaker 120.

Here, the socket 110 includes a first socket 111 and a second socket 112, and although not shown, each socket is electrically connected in parallel.

In addition, the first socket 111 forms an angle of 90 degrees between the first reference line T and the second reference line U of the main body part 100, and the second socket 112 has a first reference line T. And an angle of 45 degrees is formed between the third reference line U '.

In addition, the breaker 120 may include a main switch 121 for shutting off the main power, a test button 122 for a short circuit breaking test, and light emitting means 123 for displaying an on (connected) or off (disconnected) state of the main power. It includes.

In the present embodiment, the light emitting means is set to LED (Light Emitting Diode), but the present invention is not limited thereto.

The power extension unit 200 includes a main power plug 210, a power line 220, and a protrusion 230.

The main power plug 210 is formed in accordance with the Korean Industrial Standard (KS C8305), a plurality of long or short so as to facilitate the user to hold the main power plug using a finger as indicated by the non-explanatory symbol 211. It has a groove and is recessed in a concave shape.

In addition, the power line 220 is connected to the main power plug at one end thereof, and the other end thereof is connected to the circuit breaker of the main body, and is preferably composed of three wires (one ground line and two AC lines). The three wires are double insulated from each other.

In addition, the protrusion 230 is formed at one end of the power line 220 in contact with the main body unit 100 to block water that may flow into the main body through the outer shell of the power line, thereby preventing a short circuit. To prevent it.

In the present embodiment, the protrusion 230 has an outer diameter of about 1.5 times the outer diameter of the power line, and a plurality of long grooves are formed, but the present invention is not limited thereto.

In addition, as shown in FIG. 2, a locking hole 101 having a keyhole (keyhole) shape is formed on a lower surface of the main body 100 according to the present embodiment, so that the main body 100 can be hooked to a predetermined protruding member such as a nail. To provide the functionality.

In this embodiment, as shown in Figure 2, the engaging hole 101 is set to be located in the vicinity of the protrusion 230, and set to have a shape of a key hole (key hole), the present invention is the position It is not limited to and shape.

And the body portion 100 is provided with a cover 130 of a water-repellent material for preventing the inflow of water to the socket or breaker, the cover is preferably characterized in that the transparent or translucent.

3 and 4, the cover 130 has a right side and a front side such that a power line (hereinafter referred to as a “load power line”) connected to a separate load power plug passes through the socket 110. It has a semicircular entrance.

In this embodiment, the cover 130 is set to the semi-circular entrance is formed, but the present invention is not limited to the shape of the entrance, it is preferable that it is formed to suit the outer diameter of the load power line.

In the present embodiment, the main body portion, the cover, the main power plug and the power line will be set to a flame retardant material resistant to heat and heat, but the present invention is not limited thereto.

So far, the overall configuration of the multifunction outlet according to an embodiment of the present invention has been described with reference to FIGS. 1 to 4, and the electrical connection relation of the multifunction outlet according to the embodiment of the present invention is described in detail with reference to FIG. 5. I will explain.

5 is an electrical connection diagram of the multi-function outlet according to an embodiment of the present invention.

As shown in FIG. 5, an electrical connection state of the main body part 100 shown in FIG. 1 is shown.

First, looking at the electrical connection of the circuit breaker 120 described above are as follows.

Reference numerals N, A and B are main power input terminals respectively connected to three wires of the power line 220, N is a ground terminal, and A and B are AC (Alternative Current) input terminals.

The ground terminal N is grounded when a surge voltage such as lightning flows into a load (electronic / electric device) connected to the socket 110, thereby realizing safety of the load connected to the socket. Play a role.

The AC input through the AC input terminals A and B passes through the main switch 121. The main switch 121 electrically turns on or off the main power in a two-pole contact manner. OFF, disconnect).

Compared with the conventional one-pole contact method, such a two-pole contact method reduces the power consumed by the standby current by connecting or disconnecting all main power lines, and safety that can prevent electrical accidents due to a short circuit in advance. To provide.

In addition, the ground fault tripping circuit senses a current caused by a ground fault, a ground fault, and an electric shock through a zero phase current transformer (ZCT).

The image current conversion element senses a magnetic flux generated according to the amount of current (hereinafter referred to as "IA and IB") flowing in each of AC lines (A line and B line), and coils wound by a predetermined number of times. Causes an inductive current (hereinafter referred to as "coil current").

Normally, the amount of IB flowing in the IA and B lines flowing in the A line is the same, so that the respective magnetic fluxes generated according to each other cancel each other so that no coil current flows, and in the event of a short circuit, ground fault or electric shock, The difference causes the coil current to be caused by the magnetic flux not canceled out.

Thereafter, the induced coil current flows into an earth leakage tripping circuit electrically connected to the image current transformer, and the earth leakage tripping circuit turns off the main switch through an electromagnet type driver when the introduced coil current exceeds a predetermined current. )

In the present embodiment, the earth leakage tripping circuit is turned off when the coil current of the video current-flowing element lasts more than 0.03 seconds at a maneuver current, that is, 10 mA or less, in order to implement a user's safety from electric shock as described above. However, the present invention is not limited thereto.

As shown in FIG. 5, the overcurrent detection circuit is located at the rear of the main switch, and when a current of a predetermined level or more is detected, the overcurrent detection circuit functions to turn off the main switch through the driver.

In the present embodiment, the overcurrent detection circuit is set to detect short-circuit current using a device of the ultra-fast electronic trip method, and to detect overcurrent by using a thermal device such as bimetal, but the present invention is limited thereto. It is not.

The function of automatically shutting off the main power in the event of a short circuit, ground fault, overload, short circuit, and electric shock occurs, as shown in FIG. 5, the current limiting resistor R and the test button 122 are connected in series on the main power line. When connected, the test button may be artificially turned on (connected) to test whether the main switch is turned off.

Meanwhile, reference numerals N ', A' and B 'are on the same line as the ground terminal N and the AC input terminals A and B, respectively, and each of them is connected to the socket 110.

In addition, the LEDs (not shown) are connected in parallel to the AC input terminals (A, B) to indicate the state of the main power source, and to limit the currents connected to the rectifying diodes and the LEDs not shown to drive the LEDs. It is desirable that the resistor for is connected in series to the positive pole of the LED.

In the present embodiment, the resistor R is set to 3KΩ, and the socket 110 is set to include a first socket 111 and a second socket 112, but the present invention is not limited thereto. The resistance (R) may be set to 3KΩ or more, and the socket may be set to two or more.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawing.

According to the present invention as described above, by providing a circuit breaker that operates at a valence current or less, that is, 10mA or less, there is an effect that can prevent an accident due to a short circuit and an electric shock.

According to the present invention, a breaker including a switch of a two-pole contact type is provided on the main power line, and when the short circuit and overload occur, the switch is turned off to electrically disconnect all the main power lines, thereby reducing the possibility of a short circuit due to insulation degradation. It can also reduce the effect.

And according to the present invention, by having a cover of the water-repellent material, there is also an effect that can prevent the short-circuit accident due to the water is introduced into the socket and the breaker in advance.

Claims (8)

A plurality of sockets capable of accommodating separate load power plugs, and electrically connected to the sockets, detect an abnormal state of at least one of a short circuit, a ground fault, an overload, a short circuit, and an electric shock, and electrically supply power to the socket. A main body having a breaker for blocking; And a power extension unit including a main power plug and a power line to supply external power supplied to the main power plug to the breaker through the power line. As an outlet constituting The circuit breaker includes a detection circuit including an overcurrent detection circuit for detecting an overload / short circuit and an earth leakage tripping circuit for detecting a short circuit, a ground fault, or an electric shock, and turning off the supplied power through an electromagnetic driver connected to the detection circuit. And a test button for artificially testing whether the power is turned off through the main switch when the abnormal state occurs. The main body portion has a water-repellent cover for preventing moisture that can be introduced into the socket and the circuit breaker on the upper portion, the cover is formed at the front and side to at least two separate outlets for drawing the power cord Multifunctional outlet characterized in that. The method of claim 1, The earth leakage tripping circuit, A multi-functional outlet, characterized in that it is set to detect a short-circuit current which lasts less than the mantissa current, that is, 10 mA or less and 0.03 seconds or more. delete The method of claim 1, The breaker, A multifunctional outlet characterized by having an LED to indicate the status of the supplied power. The method of claim 1, Multifunctional outlet, characterized in that the projection is provided with a plurality of grooves in the portion where the main body and the power line is in contact with the water to prevent the water flowing into the main body through the power line. The method of claim 1, The main power plug, A multi-functional outlet, characterized in that it is provided with a plurality of long or short grooves so that the user is easy to hold with a finger, and recessed in a concave shape. The method according to claim 1 or 3, The main body, the cover, the main power plug and the power cord is a multifunctional outlet, characterized in that the flame retardant material. The method of claim 3, wherein The cover is a multi-functional outlet, characterized in that the transparent or translucent material.

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