KR20230001024U - External terminal box - Google Patents

Abstract

Without replacing the distribution panel, a terminal box equipped with a product with an automatic pole-phase leakage detection function and an automatic pole-phase switching maintenance function is installed outside the distribution panel, and a one-touch terminal connector designed to suit the electrical characteristics is used to bind the binding line to the secondary side of the circuit breaker. In this way, an external terminal box is provided that can prevent fire and electric shock accidents caused by leakage current so that anyone with a little electrical common sense can easily install it, so that the cost is low and economical, and electricity can be used safely. The external terminal box is attached to the top or right side of the distribution board, and includes a terminal box containing a leakage current safety protection device (ECSPD) and a ground current shield; and a one-touch terminal connector electrically connecting or electrically separating the ECSPD and the ground fault current shield from the distribution board.

Description

External terminal box {EXTERNAL TERMINAL BOX}

The present invention relates to a terminal box, and more particularly, to an external terminal box installed outside a distribution board.

In general, an earth leakage breaker is installed to prevent fire and electric shock accidents due to electric leakage when electricity such as a distribution panel, machinery, and apparatus of a building is used. This earth leakage breaker is a device that protects facilities and human life on the load side by detecting the abnormal current and cutting off the circuit when leakage current occurs or when an abnormal current such as a ground fault or electric shock occurs. and a function of detecting and blocking short-circuit accidents.

If the electrical outlet connected to the distribution terminal block is submerged, electricity leaks and flows through water, so if you touch the electrical outlet without knowing it, you may get an electric shock to your body.

As electricity consumption increases rapidly, electrical safety accidents also occur frequently. Electrical fires are most common in everyday residential facilities such as single-family homes and apartments, and electrical fires caused by leakage current account for a large portion. In order to prevent electrical fires and electric shock accidents caused by such leakage current, electrical safety products using terminal boxes are required.

In order to solve the problem of electrical safety accidents, Patent Registration No. 10-2073218 discloses 'a distribution terminal block that prevents the risk of electric shock due to leakage current when an electrical outlet is submerged'. According to Patent Registration No. 10-2073218, “the device board is equipped with an earth leakage breaker and a distribution terminal ELPD device, and there is a metal ground plate, so if the electrical outlet connected to the distribution terminal is submerged and current leaks, a leak occurs through the ELPD device. Since the current flows to the metal ground plate, it weakens the leakage current of the electrical outlet and prevents the human body from being electrocuted by the electric current, so safety is guaranteed, and the distribution terminal is equipped with ELPD and metal ground plate, so the installation is easy and the cost is low. This will give you the advantage of being able to use electricity economically and safely.” However, in reality, it is difficult to install the distribution panel of an existing building due to the narrow interior space, and in many cases, the installation is abandoned due to different restrictions on the communication method being used.

As described above, since it is almost impossible to additionally install electrical safety products only with the configuration of the existing distribution board, there is a problem in that the distribution board must be replaced and installed, and in most cases, installation is abandoned due to high costs. In addition, the prior art has a disadvantage in that it is difficult to repair the malfunction because the built-in ELPD device is embedded in the event of a malfunction.

Patent Registration No. 10-2073218 {registration date: January 29, 2020}

In the present invention, without replacing the distribution panel, a terminal box with a built-in product with a function of automatically detecting phase leakage and automatic switching of phases is installed outside the distribution panel, and a binding line using a one-touch terminal connector designed to meet the electrical characteristics is connected to the secondary circuit breaker. It is a method of binding to the side, and anyone with a little electrical common sense can easily install it, so it is inexpensive and economical, and provides an external terminal box that can prevent fire and electric shock accidents caused by leakage current so that electricity can be used safely. There is a purpose.

The external terminal box according to the present invention is installed outside the distribution panel, and includes a terminal box accommodating a leakage current safety protection device (ECSPD) and a ground current shield therein; and a one-touch terminal connector electrically connecting or electrically separating the leakage current safety protection device (ECSPD) and the ground fault current shield from the distribution board.

The ECSPD detects an applied abnormal state using a wavelength band based on each phase potential phenomenon and compensates for the frequency with a frequency compensation control device, thereby changing the frequency to a constant amplitude in the form of a sine wave without external interference. Leakage current shielding, absorption and attenuation can be performed by preventing leakage current from flowing.

The ground fault current shield maintains a normal grounding state before power is applied, and collects leakage current and shields ground fault current by transforming a voltage and frequency signal into a constant voltage and sine wave form in conjunction with the ECSPD.

The one-touch terminal connector includes a female connector coupled to the secondary side of the earth leakage breaker of the distribution board through L and N lines and connected to ground through a first ground line; And one end is detachably coupled to the female connector, and the other end is commonly bound to the L/N line of the ECSPD and the L/N line of the ground fault current shield through the first and second connection lines, and the second A male connector coupled to the ground fault current shield through a ground line may be included.

The present invention is an external terminal box incorporating a product with an automatic pole leakage detection function and an automatic pole phase switching maintenance function, and a terminal box with a built-in product with an automatic pole leakage automatic detection function and a pole phase automatic switching maintenance function without replacing the distribution panel. Attached to the side of the terminal box designed to fit the electrical characteristics, the binding line using the one-touch terminal connector needs only to be bound to the secondary side of the circuit breaker, solving the existing problems in houses, apartments, shopping malls, hotels, officetels, accommodations, etc. It has the effect of enabling the installation of products related to the prevention of fire caused by leakage current and electric shock caused by leakage current.

In addition, the present invention binds the L line, N line, and the ground line to the ground on the secondary side of the circuit breaker in the terminal box, thereby preventing malfunction or physical damage to the circuit through shielding of ground fault current and surge protection, and protecting internal devices. can do. In particular, electric shock accidents can be prevented by leakage current shielding, absorption, and attenuation, and electrical fires caused by leakage current can be prevented.

1 is a view showing an external terminal box according to an embodiment of the present invention.
2 is a detailed view showing the terminal box shown in FIG. 1;

In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to user's intention or precedent. Therefore, the definition should be made based on the contents throughout this specification.

In addition, in the description of the present invention, the same or similar elements are assigned the same or similar reference numerals, and detailed descriptions thereof will be omitted.

Hereinafter, an external terminal box according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing an external terminal box according to an embodiment of the present invention.

Figure 2 is a detailed view showing the terminal box shown in Figure 1;

An external terminal box according to an embodiment of the present invention includes a terminal box 100 and a one-touch terminal connector 600.

The terminal box 100 is installed outside (top or side) of the distribution panel 10 and accommodates a leakage current safety protection device (ECSPD) 110 and a ground current shield 150 therein.

The one-touch terminal connector 600 electrically connects the leakage current safety protection device (ECSPD) 110 and the ground fault current shield 150 to or electrically separates them from the distribution board 10.

The ECSPD (110) detects an abnormal state of the applied (voltage, current) using a wavelength range based on potential phenomena such as between phases (single-phase, three-phase) and compensates for the frequency with a frequency compensation control device, thereby converting the frequency into a sine wave without external interference. It is a device that helps prevent electric shock accidents by shielding, absorbing, and attenuating leakage current.

The ground fault current shield 150 normally maintains the ground state before power is supplied, and interlocks with the ECSPD 110 to transform the voltage and frequency signal into a constant voltage and sine wave form to collect leakage current and ground fault current. and has a top-of-the-line automatic phone maintenance function that can prevent electric shock accidents due to electric leakage that occurs when the top-of-the-line is wrong, with a function that automatically adjusts the top-end even if the top-end is wrong when a load is connected to the outlet at the bottom of the earth leakage breaker. .

The one-touch terminal connector 600 is coupled to the secondary side of the earth leakage breaker 12 of the distribution board 10 through the L line 710 and the N line 720, and the ground 14 through the first ground line 730. A female connector 700 connected to; And one end is detachably coupled to the female connector 700, and the L line/N line of the ECSPD 110 and the ground current shield 150 through the first and second connection lines 810 and 820 at the other end. ) and a male connector 800 coupled to the ground current shield 150 through a second ground wire 830.

It will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention should be understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims.

10: distribution board
20: earth leakage breaker
30: ground
100: terminal box
110: ECSPD
150: ground fault current shield
600: one-touch terminal connector
700: female connector
710: L line
720: N line
730: first ground wire
800: male connector
810: first connection line
820: second connection line
830: second ground wire

Claims (4)

A terminal box installed outside the distribution panel and accommodating a leakage current safety protection device (ECSPD) and a ground current shield therein; and
An external terminal box including a one-touch terminal connector electrically connecting or electrically separating the ECSPD and the ground fault current shield from the distribution board). The method according to claim 1, wherein the ECSPD detects an applied abnormal state using a wavelength band based on each phase potential phenomenon and compensates the frequency with a frequency compensation control device to change the frequency to a constant amplitude in the form of a sine wave without external interference to form an electronic array of lines of electric force An external terminal box that shields, absorbs, and attenuates leakage current by making it zero potential and preventing leakage current from flowing. The ground fault current shield of claim 2, wherein the ground fault current shield maintains a normal ground state before power is applied, collects leakage current, and shields the ground fault current by transforming the voltage and frequency into a constant voltage and sine wave form in conjunction with the ECSPD. an external terminal box. The method according to claim 1, wherein the one-touch terminal connector is coupled to the secondary side of the earth leakage breaker of the distribution board through the L line and the N line, the female connector connected to the ground through a first ground line; and
One end is detachably coupled to the female connector, and the other end is commonly bound to the L/N line of the ECSPD and the L/N line of the ground fault current shield through the first and second connection lines, and the second ground wire External terminal box including a male connector coupled to the ground fault current shield through.

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