KR20140004504A - Safety electric outlet - Google Patents

Abstract

The present invention relates to a safe outlet which is separately used according to the use and capacity of a load by allowing different currents in each individual outlet comprising one outlet system. The load is connected to the outlet with a corresponding capacity by checking the short circuit and disconnection of the load and estimating a rated capacity. [Reference numerals] (AA) mA - 1A; (BB) Less than 100W

Description

Safety outlet {SAFETY ELECTRIC OUTLET}

The present invention relates to a safety outlet, and more particularly, to allow each of the individual outlets constituting one outlet system to allow a different value of current to enable different uses according to the use and capacity of the load (electric appliance). On the other hand, it relates to a safety outlet that can be used to connect to the outlet of the corresponding capacity to estimate the short-circuit and disconnection before using the load and to estimate the rated capacity.

In general, an outlet is a general term for a device that can be plugged into a wiring for connecting indoor indoor wiring, that is, a cord used indoors.

The outlet consists of an outlet block in which a plurality of outlets are arranged so that one or more plugs can be plugged in.

Such a conventional outlet has been introduced with a number of safety devices in consideration of the user's safety, but until recently safety outlets are equipped with a switch to each of the individual outlets so that only the outlet to be used to turn on the power by the switch operation. It is.

However, even when the switch is provided in this way, when connected to the outlet in a state in which a short circuit occurs on the load side to be used, it is inevitable to damage the electrical circuit or the wiring by a short.

In order to solve such a problem, recently registered Korean Patent No. 0726823 (an outlet having an earth leakage blocking function; application of October 15, 1981) has been introduced.

The prior art is provided with a relay unit for cutting off or connecting the power lines (L, N), when the plug of the electrical device is inserted into the external power supply, the power supply for supplying the drive power, and if the drive power is applied from the power supply, commercial A voltage converter for converting the voltage into a safety voltage and supplying the plug to the plug, an image current transformer for detecting leakage current leaking from the power line, an amplifier for amplifying the leakage current detected in the image current transformer at a predetermined ratio, and an amplifier for amplifying the voltage. When the leakage current is sensed, the circuit driver for driving the earth leakage blocking function, the electronic device for determining the occurrence of a short circuit by comparing the amplified leakage current value and the reference current value when the circuit driver drives the earth leakage blocking function, If the device determines that a short circuit has occurred, by starting the outlet including a movable portion for controlling the relay to cut off the power line When a plug is inserted into an outlet, the power supply can be supplied after a short-circuit check for a short period of time to prevent electric shock and damage to the electrical equipment, thereby preventing an electric shock and damage to the electrical equipment. will be.

However, such a conventional safety outlet has a very complicated structure or structure, and thus has low practicality and applicability.

The present invention created to solve the problems of the prior art as described above can be used separately according to the use and capacity of the load (electric appliance) by allowing each of the individual outlets constituting one outlet system to allow a different value of current. On the other hand, it aims to provide a safety outlet that can be connected to an outlet of the corresponding capacity by approximating the short-circuit and disconnection before use of the load and the rated capacity.

The present invention for achieving the above object is to branch the electric wire between the first fuse / breaker and the first outlet provided in the power supply terminal, and the second fuse / breaker having a relatively smaller tolerance than the first fuse / breaker and Connecting the second outlet, and branching the wires between the second fuse / breaker and the second outlet to connect the third fuse / breaker and the third outlet having a relatively smaller tolerance than the second fuse / breaker. A plurality of arrangements are made according to a pre-design, and a light bulb is connected to one end of both ends of the final outlet, and a test lead rod is connected to one end connected to the light bulb and the other end of the final outlet.

In addition, the present invention by branching the wire between the power supply stage and the first fuse / breaker and the first outlet, to connect the second fuse / breaker and the second outlet having a relatively smaller tolerance value than the first fuse / breaker A third fuse / breaker and a third having a smaller tolerance than the second fuse / breaker by returning to the end side and branching at the same position as the branching point of the power supply stage, the first fuse / breaker and the second fuse / breaker. The outlet is connected, but the state of returning to the power supply side is arranged in accordance with the pre-designed number, the light bulb is connected to one end of both ends of the final outlet, and the test lead rod is connected to one end connected to the bulb and the other end of the final outlet. It features.

The present invention by the above-described problem solving means is to allow each of the individual outlets constituting one outlet system to allow a different value of current to enable the separate use according to the use and capacity of the load (electric appliance), Gain the effect of inducing stable use of

In addition, according to the present invention, by checking whether the load is shorted or disconnected before the outlet (electric appliance) is connected to the outlet, the electric shock or damage caused by plugging the shorted load into the outlet can be prevented.

On the other hand, the present invention obtains the effect of checking the rated capacity before the outlet connection of the load can be used to select the outlet corresponding to the rated capacity.

1 is a circuit diagram showing a configuration according to an embodiment of the present invention.
Figure 2 is a perspective view showing the external configuration according to an embodiment of the present invention.
3 is a circuit diagram showing a configuration according to another embodiment of the present invention.

The construction of the present invention will now be described with reference to the accompanying drawings.

First, the present invention diverges the electric wire between the first fuse / breaker 11 and the first outlet 12 provided in the power supply terminal 1, as shown in FIGS. The second fuse / breaker 13 and the second outlet 14 are connected to each other with a smaller allowable value than the fuse / breaker 11, and between the second fuse / breaker 13 and the second outlet 14. By branching the wires, a plurality of states in which the third fuses / breakers 15 and the third outlets 16 which have relatively smaller tolerances than the second fuses / breakers 13 are connected are arranged according to a pre-design, One end of the final outlet (the third outlet in the present invention) may be connected to the light bulb 17, and the test lead rod 18 may be connected to one end connected to the light bulb 17 and the other end of the final outlet.

Here, the safety outlet 10 of the present invention may be arranged in a conventional outlet housing (case), or may be arranged in a housing designed in a predetermined shape as a teaching precinct in a school / academy.

When applied as a training parish at the school / academy, etc., a current meter for checking current may be connected between one side of each fuse / breaker, that is, a branched branch and each fuse / breaker, and a voltage for checking voltage at the power supply terminal 1. You can also connect a meter.

In this case, the current meter and the voltage meter may be a digital meter or an analog guide meter that displays a numerical value so that the measured value can be visually checked.

On the other hand, in the present invention, the power terminal 1 is a connection terminal of the commercial power (220V), the normal power plug is connected, the switch (not shown) and the earth leakage breaker (not shown) to turn on / off the main power Can be prepared.

In addition, the first fuse / breaker 11 of the present invention may be a breaker switch having a capacity of 30A.

In addition, the second fuse / breaker 13 of the present invention may be a breaker switch having a capacity of 10A to 15A.

In addition, the third fuse / breaker 15 of the present invention may be a glass tube fuse having a capacity of several mA to 1A.

In this case, each fuse / breaker may be another electric component that connects and disconnects an electric circuit.

For reference, the current flowing through the electric circuit is largely divided into a fault current flowing when a fault such as a load current and a short circuit or ground occurs, and the fault current is very large compared to the load current and thus difficult to block. Therefore, the breaker is arranged to cut off the fault current as well as the load current, and the load switch is arranged to cut only a small current as small as the load current.

Meanwhile, in the present invention, the first outlet 12 has one end connected between the first fuse / breaker 11 and the second fuse / breaker 13, and the other end is connected to one side of the power supply terminal 1. Can be connected.

On the other hand, in the present invention, the second outlet 14 has one end connected between the second fuse / breaker 13 and the third fuse / breaker 15, and the other end is connected to one side of the power supply terminal 1. Can be connected.

On the other hand, the third outlet 16 of the present invention, one end may be connected between the third fuse / breaker 15 and the light bulb 17, the other end may be connected to one side of the power supply terminal (1).

On the other hand, the light bulb 17 of the present invention may be a light emitting body of less than 100W.

In addition, the test lead rod 18 of the present invention may be accommodated in the receiving portion 21 provided on one side of the outlet housing 20 is provided with each component is drawn out.

In this case, a spring is drawn inside the receiving portion 21 to pull the front end of the test lead rod 18 so that the test lead rod 18 can be always accommodated inside and drawn out by a force pulled from the outside. The test lead rod 18 is maintained in the pulled state by a separate locking device, and when the locking device is released, the test lead rod 18 may be pulled into the receiving portion 21 by pulling the spring spring and accommodated therein.

At this time, the locking device is not shown, but in the state in which the switch is pressed release the pressure on the lead wire of the test lead rod 18, the elasticity to provide pressure to the lead wire of the test lead rod 18 in the non-pressed state It may be a switch.

Hereinafter, the operation of the present invention will be described.

First, the present invention branches a wire between the first fuse / breaker 11 and the first outlet 12 having the largest allowable value, and the second fuse having a smaller tolerance value than the first fuse / breaker 11. The fuse / breaker 13 and the second outlet 14 are connected, but the branch line is returned to the point where the first outlet 12 passes, so that the voltage allowed at the first outlet 12 and the second outlet 14 is allowed. / Current value is different.

The third fuse / breaker 15 also branches the wire again between the second fuse / breaker 13 and the second outlet 14 subsequent to it, and has a smaller tolerance than the second fuse / breaker 13. And a third outlet 16, wherein the branch line returns to the point where the first outlet 12 passes, so that the voltage / current values allowed by the first outlet 12 and the second outlet 14 are different from each other. do.

At this time, when the first outlet 12 having the largest allowable value is used, the electric load is not applied to the second fuse / breaker 13 and the third fuse / breaker 15 having smaller allowable values.

However, when the second outlet 14 is used, an electric load is applied to the first fuse / breaker 11 and the second fuse / breaker 13.

When the third outlet 16 is used, an electrical load is applied to the first fuse / breaker 11, the second fuse / breaker 13, and the third fuse / breaker 15.

In addition, the present invention as described above may be connected to both ends of the outlet of the electrical appliance as a load by using the test lead rod 18, and the rated capacity may be checked while testing whether the load is shorted or disconnected.

For example, when the test lead rods 18 are connected to both ends of the outlet of the electric appliance that is the load, when there is no change in brightness of the light bulb 17, it may be determined that a short circuit has occurred on the load side. If 17) is not lit, it may be determined that a disconnection has occurred on the load side.

In addition, assuming that the bulb 17 is 100W, when the brightness of the bulb 17 is 50%, which is 1/2 of the 100W brightness, the load corresponds to 50W, and the brightness of the bulb 17 is 50 of the 100W brightness. If more than%, the load is also 50W or more, and if the brightness of the bulb 17 is less than 50% of the brightness of 100W, it is determined that the load also corresponds to 50W or less, so that the brightness of the bulb 17 to the outlet according to the rated capacity according to the degree Plug in and use.

The present invention as described above is to allow a separate use according to the use and capacity of the load by allowing each of the individual outlets constituting one outlet system to allow different values of voltage / current, thereby inducing stable use of the load.

In addition, the present invention checks whether the load is shorted before connecting the load outlet, thereby preventing electric shock or damage caused by plugging the shorted load into the outlet.

On the other hand, the present invention to check the rated capacity before the outlet connection of the load to be able to use the outlet corresponding to the rated capacity.

Looking at another embodiment of the present invention as described above, as shown in Figure 3, by branching the electric wire between the power supply terminal 1 and the first fuse / breaker 11 and the first outlet 12, The second fuse / breaker 13 and the second outlet 14, which have a smaller tolerance value than the first fuse / breaker 11, are connected to each other, and the power supply terminal 1 is returned to the power supply terminal 1 side. And the third fuse / breaker having a smaller tolerance than the second fuse / breaker 13 by branching at the same position as the branch point of the first fuse / breaker 11 and the second fuse / breaker 13. 15) and the third outlet 16 are connected, but a plurality of states of returning to the power terminal 1 side are arranged in accordance with the pre-design, the light bulb 17 is connected to one end of both ends of the final outlet, the light bulb 17 ) Is connected to the other end of the terminal and the other end of the final outlet. There is also.

According to the present invention, the electric wire is branched between the power supply stage 1 and the first fuse / breaker 11, so that the second fuse having a different allowable value from the first fuse / breaker 11, that is, the rated capacity is relatively low. If the breaker 13 and the second outlet 14 are connected and this branch line returns to the point preceding the previous, i.e., the first outlet 12, different tolerance values, such as the series safety outlets above It can be installed with an outlet.

At this time, unlike in-line safety outlets, electrical loads are generated independently of several fuses / breakers, so that even when an outlet having a small allowable value is used, a load is not applied to a fuse / breaker having a larger allowable value.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

In addition, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

10: safety outlet 11: first fuse / breaker
12: 1st outlet 13: 2nd fuse / breaker
14: 2nd outlet 15: 3rd fuse / breaker
16: third outlet 17: light bulb
18: test lead rod 20: outlet housing
21: accommodating part 1: power supply

Claims (3)

The electric wire is branched between the first fuse / breaker 11 and the first outlet 12 provided at the power supply stage 1, and the second fuse / has a relatively smaller tolerance than the first fuse / breaker 11. The breaker 13 and the second outlet 14 are connected and branched wires between the second fuse / breaker 13 and the second outlet 14 allow relatively less tolerance than the second fuse / breaker 13. A plurality of states connecting the third fuse / breaker 15 having the value and the third outlet 16 are arranged according to a pre-design, and the light bulb 17 is disposed at one end of both ends of the final outlet (the third outlet in the present invention). ) And a test lead rod (18) connected to one end of the light bulb (17) and the other end of the final outlet.
The second fuse / breaker having a smaller relative value than the first fuse / breaker 11 by branching the electric wire between the power supply stage 1 and the first fuse / breaker 11 and the first outlet 12, 13) and the second outlet 14 are connected to the power supply terminal 1 side, and the same as the branch point of the power supply terminal 1 and the first fuse / breaker 11 and the second fuse / breaker 13. Branching at a position to connect the third fuse / breaker 15 and the third outlet 16 having a smaller allowable value than the second fuse / breaker 13 but return to the power supply terminal 1 side. Arrange a plurality of according to the pre-design, the light bulb 17 is connected to one end of both ends of the final outlet, and the test lead rod 18 is connected to one end and the other end of the end outlet that the light bulb 17 is connected Safety outlet.
3. The method according to claim 1 or 2,
The test lead rod (18) is a safety outlet, characterized in that the outlet is accommodated in the receiving portion 21 is provided on one side of the outlet housing (20).

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