KR200366378Y1 - Extendable digital multi receptacle - Google Patents

Abstract

The present invention relates to a digital multi-outlet that can be used by continuously combining the extension outlet having a plurality of plug inlets to the main outlet that is input power from the outlet for the power supply as necessary within the allowable current amount of the main outlet.

The present invention for realizing this is an extension type multi-outlet in which extension outlets having a plurality of plug inlets are continuously connected to a main outlet into which commercial power is input, and the main outlet is connected to a current display window and a commercial power input power plug. An over-current breaker and a power switch connected to the output terminal of the over-current breaker are mounted in upper and lower cases, while a retractable power connection terminal is installed at the female connector at the front end thereof in the longitudinal direction. The male connector is formed at one end of the shape corresponding to the female connector, and the female connector is formed at the opposite end facing the male connector, so that the number of extension outlets is required for the main outlet. Multiple wires in a row The shoes being, being devised that detect and display the used amount of current, and not less than reference set value a warning and shut off and the safety means are provided with greatly improved stability.

Description

Digital multi receptacle {Extendable digital multi receptacle}

The present invention relates to an outlet for power connection, and more particularly, an extension outlet having a plurality of plug inlets to a main outlet into which power is input can be used by continuously combining as many as necessary within the allowable current of the main outlet. The present invention relates to a digital multi-outlet, which is able to detect and display a current amount and to warn a user in the event of an overload and to shut off power, thereby ensuring stability.

An outlet is a mechanism that connects a wire and inserts a plug to connect a cord used indoors in an indoor wiring of electricity.

These outlets are wall-mounted outlets which are usually installed on the walls of buildings in homes, offices, and industrial sites, and are located at long distances from the wall-mounted outlets, so that the plugs of the wall-mounted outlets are used to transfer electric power to electric devices that are not supplied with power due to electric wires. Plugs inserted into inlets and outlets for power connection in which the plugs are drawn out from one side and a plurality of plug inlets are formed on the upper surface thereof have been proposed.

In particular, the power connection outlet has a plurality of plug inlets are formed to be able to supply power to a plurality of electrical devices, which are collectively referred to as a multi-outlet or a power strip.

In addition, such a power connection outlet is generally provided with a separate power switch for applying or blocking input power.

By the way, in homes, offices, factories or system rooms equipped with a large number of installations, a large number of plug inlets are required. However, the number of plug inlets is usually limited to six at most. When the inlet is required, a separate outlet must be reconnected and used, which leads to complicated wiring and a lot of time due to power distribution, and there is a problem in that stability is insufficient when an overload occurs because the amount of current used is unknown.

The present invention has been made to improve the above problems, is formed by separating the main outlet for supplying a constant voltage and the extension outlet provided with a plug inlet to receive a commercial power supply, and extends to the main outlet according to the required quantity of the plug inlet It is an object of the present invention to provide a digital multi-outlet in which a plurality of outlets can be used in series.

In addition, another object of the present invention is to provide a digital multi-outlet provided with a safety means to warn and cut off the current when the amount of current is more than the reference set.

1 is a perspective view of a digital multi outlet according to one embodiment of the present invention;

2 is a rear perspective view of FIG. 1;

Figure 3 is an exploded perspective view of the main outlet in the digital multi-outlet according to an embodiment of the present invention,

4 is an exploded perspective view of an extension outlet in a digital multi-outlet according to an embodiment of the present invention;

5 is an exploded perspective view of the rear portion of Figure 4,

6 is a circuit diagram of an overcurrent circuit breaker according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: main outlet 2: extension outlet

10a, 10b: Female connector 11a, 11b: Extension part

12a, 12b: Retractable power connection terminal 13a, 13b: Terminal block lower cover

14a, 14b: Terminal block top cover 15a, 15b: Terminal insertion groove

16a, 16b: male connector insertion groove 17a, 17b: guide projection

18, 28: lower case 19, 29: upper case

20: male connector 21: plug inlet

22: electrode piece 26: square projection

27: slide groove 30: overcurrent breaker

31: current detector 32: control unit

33: current amount display unit 34: warning sound generating unit

40: current display window 50: power plug

60: power switch 70: plug

The present invention for realizing the above object, in the extended multi-outlet that is capable of extending the number of plug inlet by continuously tightening the extension outlet formed with a plurality of plug inlet to the main outlet into which the commercial power supply, the main outlet Is provided with a current display window and an overcurrent breaker connected to a commercial power input power plug on one side, and a power switch connected to an output terminal of the overcurrent breaker to be seated in the upper and lower cases, and the power switch is connected to the front end of the longitudinal direction. The incoming power supply terminal is formed in the female connector, the extension outlet is formed at the one end of the longitudinal direction corresponding to the female connector in the shape that can be mutually fastened and is opposite to the male connector The female connector is formed on the opposite end It can control.

In the above, the female connector is protruded from the central portion in the longitudinal direction from one side end of the lower case to the terminal type lower cover, the terminal cover lower cover is formed, the terminal insertion groove is formed and the terminal insertion groove is formed corresponding to the terminal cover A terminal cover upper cover fastened on the lower cover of the terminal block so as to cover the upper side of the retractable power connection terminal, each extending from the lower case and the upper case to protrude in the same length as the upper and lower cover of the terminal block, and a plurality of male connector guide protrusions. On the inner circumferential surface is formed in each of the longitudinal direction extending to form a male connector insertion groove, while the male connector is protruded from the upper and lower cases so as to correspond to the male connector insertion groove of the female connector and the slide is fastened to the guide projection Hollow square projection with grooves and the phosphorus Power supply is connected to the electrode made of a piece that protrudes so as to be connected to the terminal structure.

In addition, in the above, a hollow portion into which the terminal block upper and lower cover is inserted is formed on the inner side, and a guide protrusion of the female connector is accommodated on the outer circumferential surface thereof, and a plurality of fastening protrusions are formed to seal the female connector that is not in use. Characterized in that the stopper is further provided.

In addition, the overcurrent circuit breaker detects the current change of the main power line through the image current transformer and converts the voltage into a voltage and then amplified by the operational amplifier, connected to the current detector to convert the detection signal into a digital signal to convert the digital signal The controller outputs an alarm signal and outputs an alarm signal when an overcurrent is detected, a current amount display unit connected to an output terminal of the controller to receive a digit signal of the controller and display the current signal on the current display window, and generates an alarm by receiving an alarm signal of the controller. And a power supply unit configured to supply and supply the power in a constant voltage state by dropping and rectifying commercial power so as to supply driving power to the generator and the current detector, the controller, the current amount display unit, and the alarm sound generator.

Hereinafter will be described in detail with reference to the accompanying drawings the configuration and effect according to an embodiment of the present invention.

1 is a perspective view of a digital multi-outlet according to one embodiment of the present invention, and FIG. 2 is a rear perspective view of FIG. 1.

The main outlet 1 according to the present invention is provided with a current display window 40 on the upper surface, and the commercial power input power supply plug 50 connected to the commercial power source is drawn out on one side in the longitudinal direction.

In addition, the main outlet 1 is such that the power switch 60 connected to the output terminal of the overcurrent breaker 30 connected to the commercial power input power plug 50 is seated in the upper case 19 and the lower case 18. At the front end of the longitudinal direction, as shown in FIG. 3, a retractable power connection terminal 12a connected to the power switch 60 is provided at the female connector 10a.

An extension outlet 2 having a male connector 20 formed at one end thereof is coupled to the female connector 10a of the main outlet 1.

The extension outlet 2 has an outer surface formed by coupling an upper case 29 having a plurality of plug inlets 21 to the lower case 28.

In addition, the extension outlet 2 is formed at the one end of the longitudinal direction corresponding to the female connector (10a) of the main outlet (1) is formed in a shape that can be fastened to each other, and the male connector ( A female connector 10b having the same shape as the female connector 10a of the main outlet 1 is formed on the opposite end opposite to 20).

1 and 2, the female connector 10a of the main outlet 1 is coupled to the male connector 20 of the extension outlet 2 and the extension outlet 2 at the same time. The electrode piece 22 provided at the male connector 20 of the female connector 20 is drawn in and electrically connected to the lead-type power supply terminal 12a of the female connector 10a. In this way, the female connector of the extension outlet 2 is connected. The male connector 20 'of the extension conduit 2', which is added for extension of the plug inlets 21 and 21 ', is coupled to the extension inlet 2'. It can be combined.

That is, the present invention can be used to continuously combine as many extension outlets (20, 20 '......) as necessary according to the user's request within the amount of current that the main outlet (1) can allow It is.

Figure 3 shows an exploded perspective view of the main outlet according to an embodiment of the present invention, Figure 4 shows an exploded perspective view of the extension outlet according to an embodiment of the present invention, Figure 5 shows a rear perspective view of Figure 4 respectively. .

The coupling structure between the main outlet 1 and the extension outlet 2 or the extension outlet 2 and the extension outlet 2 'will be described in more detail.

The female connector 10a of the main outlet 1 is coupled to the male connector 20 of the extension outlet 2, and the retractable power connection terminal connected to the power switch 60 as shown in FIG. 12a) is mounted so as to protrude from the central portion in the longitudinal direction from the one end of the lower case 18, the terminal block lower cover 13a, the terminal insertion groove 15a is formed, the terminal block lower cover 13a A plurality of numbers extending to protrude in the same length as the upper terminal cover 14a of the terminal block and the upper and lower covers 13a and 14a of the terminal block that are fastened on the lower cover 13a to cover the upper side of the power supply connection terminal 12a. The connector guide protrusion 17a is formed in the longitudinal direction from the inner circumferential surface, respectively, and includes an extension part 11a for forming the male connector insertion groove 16a.

Meanwhile, the male connector 20 of the extension outlet 2 coupled to the female connector 10a of the main outlet 1 corresponds to the male connector insertion groove 16a of the female connector 10a as shown in FIG. 5. Hollow square protrusions 26 and hollow portions of the rectangular protrusions 26 protruding from the upper case 29 and the lower case 28 so as to form a slide groove 27 engaged with the guide protrusion 17a at the outer circumference thereof. The inner side is comprised by the electrode piece 22 provided so that it may protrude so that it may be drawn in to the pull-out power supply connection terminal 12a.

In addition, the extension outlet 2 has a female connector 10b having the same shape as that of the female connector 10a of the main outlet 1, as shown in FIG. 4, on the opposite end where the male connector 20 is formed.

That is, the female connector 10b of the extension outlet 2 has a lower power supply terminal 12b on which the electrode piece 22 'of the extension outlet 2' of FIG. 2 is inserted. The terminal block protrudes from the central portion in the longitudinal direction from one side end to correspond to the terminal cover lower cover 13b and the terminal cover lower cover 13b in which the terminal insertion groove 15b is formed to cover the upper side of the retractable power connection terminal 12b. The terminal block upper cover 14b fastened on the lower cover 13b and the terminal block upper and lower cover 13b and 14b are formed so as to protrude in the same length, and the plurality of male connector guide protrusions 17b extend in the longitudinal direction from the inner circumferential surface, respectively. It is formed of an extension portion 11b that is formed to form the male connector insertion groove 16b.

Meanwhile, the upper and lower covers 13a, 13b, 14a and 14b of the terminal block are inserted into the female connection ports 10a and 10b of the main outlet 1 and the extension outlet 2 as shown in FIGS. 1 and 2. The hollow portion 71 is formed and the outer peripheral surface of the guide protrusions (17a, 17b) of the female connection port (10a, 10b) is also accommodated and closed with a stopper (70) formed with a plurality of fastening projections (72) When the female connection ports 10a and 10b are not in use, they are sealed to prevent foreign matters from entering the female connection ports 10a and 10b.

As described above, the digital multi-outlet according to one embodiment of the present invention is illustrated in that a female connector and a retractable power connection terminal are installed in the main outlet, and a male connector and an electrode piece are installed in the extension outlet and mutually fitted. The male outlet and the electrode piece are installed in the main outlet, and the female outlet and the retractable power connection terminal are installed in the extension outlet.

6 shows a circuit diagram of an overcurrent circuit breaker according to the present invention.

The current breaker 30 according to the present invention is introduced into the power plug 50, the current detection unit 31 for detecting the current amount of the power supplied to the extension outlet (2) through the retractable power connection terminal 12a, the current The control unit 32 and the control unit 32 for converting the amount of current detected by the detection unit 31 into a digital signal and outputting it as a digit signal and generating an alarm signal when an overcurrent is compared with a preset reference current. A current amount display unit 33 for displaying a digit signal on the current display window 40, an alarm sound generator 34 for generating an alarm sound according to an alarm signal generated when the controller 32 detects an overcurrent, and the current detection unit ( 31), a control unit 32, a current amount display unit 33, a warning sound generating unit 34, and the like.

If the current detecting unit 31 is installed so that one of the power lines drawn from the power plug 50 passes through the center of the current transformer 310, the power line is connected to the power line when the power is used at the output terminal. The current flows, and at this time, the current transformer 310 detects the current variation, converts it into a voltage, amplifies it into an operational amplifier OP1 (OP2), and inputs it to the controller 32 including the microprocessor 321. The control unit 32 outputs a digital signal which can be converted into a digital signal and displayed on the current amount display unit 33, and a control signal for operating a warning means when the warning means is operated when the reference current is higher than the reference current. To output.

The current amount display unit 33 is configured to output the current amount to the current display window 40 as a digital signal, and when the warning sound is generated in the alarm sound generation unit 34 to be described later, it is made to flash to visually indicate an alarm.

When the alarm sound generator 34 receives the alarm sound signal from the control unit 32, for example, the alarm sound generator generates an intermittent sound for 1 second and then goes through a pause for 3 seconds. .

The power supply unit 35 requires the commercial power input through the power plug 50 through the transformer 341 in the current detection unit 31, the control unit 32, the current amount display unit 33, and the warning sound generator 34. The voltage is lowered to the voltage level, and rectified by the rectifier 342, so that the constant voltage unit 343 can be supplied at a constant voltage.

Therefore, the user may recognize through the alarm sound generator 34 when an overcurrent flows when a plurality of extension outlets 2 are connected to the main outlet 1 and a plurality of electronic devices are connected to the extension outlets 2. Therefore, it is possible to quickly follow up the action, and also to check the safety state by looking at the amount of current displayed on the current display window 40 even when using a lot of equipment connected.

As described above, the present invention is connected to the main outlet for supplying power and a plurality of extension outlets are continuously connected, so that the wiring is simplified and the user's convenience is improved, and the amount of current used is detected and displayed. And there is an advantage that the safety means is significantly improved stability is provided.

Claims (4)

In the extended multi-outlet, which is capable of expanding the number of plug inlets by continuously connecting extension outlets having a plurality of plug inlets to the main outlet into which commercial power is input, The main outlet includes a current display window, an overcurrent breaker connected to a commercial power input power plug on one side, and a power switch connected to an output terminal of the overcurrent breaker to be seated in upper and lower cases, and the power supply at the front end thereof in a longitudinal direction thereof. A retractable power connection terminal to which a switch is connected is formed in the female connection port, and the extension outlet has a male connector in a shape that can be mutually fastened to correspond to the female connection port at one end of the longitudinal direction. Digital multi-outlet, characterized in that the female connector is formed on the opposite end opposite to the connector. According to claim 1, The female connector is protruded from the central portion in the longitudinal direction from one side of the lower case terminal seat lower cover, the terminal cover lower cover and the terminal block lower cover and the terminal insertion groove is formed, A terminal block upper cover fastened on the terminal cover lower cover so as to cover the upper side of the retractable power connection terminal, respectively extending from the lower case and the upper case to protrude the same length as the upper and lower cover of the terminal block; Guide protrusions are formed in the longitudinal direction from the inner circumferential surface, respectively, to form an extension portion forming a male connector insertion groove, while the male connector protrudes from the upper and lower cases so as to correspond to the male connector insertion groove of the female connector. Hollow rectangular projection with upper slide groove Digital multi-outlet, characterized in that the electrode made of a piece that protrudes so as to be connected to the incoming power supply connection terminals. According to claim 2, wherein the inner side of the terminal block is formed in the hollow portion is inserted into the lower cover and the outer peripheral surface guide protrusions of the female connection port and a plurality of fastening projections are formed to seal the non-use female connection port Digital multi-outlet, characterized in that the additional stopper is provided. The digital current circuit of claim 1, wherein the overcurrent circuit breaker detects a current change of a main power line through an image current transformer, converts the voltage into a voltage, and then amplifies it into an operational amplifier. The overcurrent circuit breaker is connected to the current detector to convert a detection signal into a digital signal. The controller outputs an alarm signal and outputs an alarm signal when an overcurrent is detected, a current amount display unit connected to an output terminal of the controller to receive a digit signal of the controller and display the current signal on the current display window, and generates an alarm by receiving an alarm signal of the controller. A digital multi-outlet, comprising: a generator, and a power unit configured to drop and rectify commercial power so as to supply driving power of the current detector, the controller, the current amount display unit, and the alarm sound generator.