KR20010086608A - Receptacle - Google Patents

Abstract

PURPOSE: A receptacle is provided to detect and test an arc defect by having the first and second test buttons. CONSTITUTION: A receptacle(100) includes a body(105), a cover(110), and the first and second test buttons(121,122). The cover(110) is coupled with the upper portion of the body(105). The first and second test buttons(121,122) are mounted at the inside of the body(105) and exposed through the cover(110). The first and second slits(131,132) are formed at the cover(110) to operate the first and second test buttons(121,122). A reset button(115) is installed between the first and second test buttons(121,122). Connectors(125) corresponding with three-phase outlets are formed at the cover(110). A joke(135) is connected between the body(105) and the cover(110). Connecting holes(140) are formed at both ends of the joke(135).

Description

Receptacle {RECEPTACLE}

The present invention relates to a receptacle used in a power distribution system, and more particularly to a receptacle having a separate arc and ground test button to detect the arc and ground faults while performing the arc and ground tests, respectively.

Switchboards in certain areas, such as urban, industrial or commercial areas, typically use low voltage networks of 600 volts or less. In particular, the cables of the network are buried underground and are generally designed to be introduced at more than one point. Such cables can cause defects due to various causes, such as thermal degradation, aging, moisture or damage by animals such as mice. A circuit breaker or receptacle is provided to protect the network from the above causes, which can disconnect cables such as fuses to isolate faulty cables and minimize network failure. A device is required across the cable. The cable disconnect device is a device capable of safely acting on phase-to-phase defects such as high voltage and low impedance defects.

On the other hand, in order to prevent a fire or electric shock, at home, a circuit breaker and an earth leakage breaker are used. The circuit breaker is used for the purpose of protecting the electric wire. Firstly, when the current exceeds the rated value while the load is in use, the current flowing inside the breaker flows higher than the regular current, This heat causes the internal bimetal to bend and block the operation of the electric appliance. The second is a case where a short circuit occurs between phases by a power tool or other metal object on the load side. In this case, since a high current is generated instantaneously, the bimetal is heated to operate the magnet inside before the electric appliance is operated. Shut off the operation of the electric appliance. Such a high current generates a lot of magnetic fields, and accordingly the magnet inside the electric appliance is operated.

In the case of an earth leakage circuit breaker, the circuit breaker has a function of protecting the user by detecting a circuit and shutting off the power when the electric shock occurs while the user is using the electric device.

One type of the ground fault breaker includes a ground fault protection receptacle having a high sensitivity ground fault detection function. Is disclosed.

1 is a front view of the ground fault protection receptacle disclosed in the above Patent No. 10-078629.

Referring to FIG. 1, the receptacle 10 is interdigitated with each of the two plugs inserted in the insulating enclosure 15 through openings 25 formed in the front cover 20 of the enclosure 15. It is formed of a double receptacle with all the parts of it.

The enclosure 15 includes a front cover 20, a back cover (not shown) and a base (not shown), each formed of an insulating material. At this time, the mounting yoke 30 in the form of a metal plate is coupled between the base constituting the enclosure 15 and the front cover 20. In addition, the ground terminals extend inwardly from the mounting yoke 30 into the base and enter and exit through an arc-shaped opening 25 among the openings 25. In addition, the ground terminal screw 35 is coupled with the side extension of the mounting yoke 30 for the connection of the external ground wire.

In this case, the center of the front cover 20 is provided with a reset button 40 for returning the operation of the receptacle 10 and a ground test button 45 for testing a ground fault.

However, although the receptacle 10 having the above-described configuration can detect and test ground faults, mechanical and electrical stress due to insulation and wiring breakdown, overuse or overcurrent, connection defects and excessive mechanical damage to insulation and wiring, etc. There is a problem in that it is not possible to detect or test an arc fault.

Accordingly, the present invention has been made to solve the problems of the conventional ground fault protection receptacle described above, one object of the present invention is to provide a ground fault, mechanical and electrical stress due to insulation and wiring breakdown, overuse or overcurrent, connection defects and It provides a receptacle that can detect and test arc faults, which are caused by excessive mechanical damage to insulation and wiring, that cannot be detected by ground-coupled protection receptacles.

It is another object of the present invention to provide a receptacle to test more safely by operating a separate tap button mounted on the test button without shorting the circuit directly with the test button for testing ground and arc faults. It is.

It is still another object of the present invention to provide a receptacle that can be easily installed in use by reducing the size of the receptacle by configuring the test button in one piece extending from the top to the bottom of the receptacle.

1 is a front view of a conventional ground fault protection receptacle.

2 is a plan view of a receptacle according to an embodiment of the present invention.

3 is a cross-sectional view of the receptacle shown in FIG. 2 taken along the line A-A.

4 is an enlarged perspective view of the first and second test buttons among the receptacles shown in FIG. 2.

5 is a plan view of a receptacle according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view of a portion A-A cut out of the receptacle illustrated in FIG. 5.

FIG. 7 is an enlarged perspective view of the first and second test buttons among the receptacles shown in FIG. 5.

<Explanation of symbols for the main parts of the drawings>

100, 200: Receptacle 105, 205: Receptacle body

110, 210: Cover 115, 215: Reset button

121 and 122: first and second test buttons 125 and 225: connector

131 and 132: first and second button holes 135 and 235: yoke

140 and 240: coupling holes 145 and 245: pressing portion

151, 152: 1st and 2nd button accommodation parts 155 and 255: contact part

160, 260 connection part 165, 265 spring

171, 172: First and second spring grooves 175, 275: Trip part

221 and 222: first and second test buttons 231 and 232: first and second button holes

251 and 252: 1st and 2nd button accommodation parts 271 and 272: 1st and 2nd spring groove

281, 282: First and second tap buttons

According to a preferred embodiment of the present invention to achieve the above object of the present invention, in the receptacle used in the power distribution system, the receptacle is a receptacle body, a cover coupled to the upper portion of the receptacle body, respectively inside the receptacle body And a spring mounted on one side thereof and connected between the first and second test buttons exposed to the outside through the cover and the first and second test buttons to give restoring force to the first and second test buttons. .

At this time, the first and second button receiving parts for accommodating the first and second test buttons are respectively formed in the receptacle body, and one side of the first and second test buttons is exposed to the outside, respectively. First and second button holes are formed so as to.

Preferably, the first test button serves as an arc test button for testing arc defects, and the second test button serves as a ground test button for testing ground coupling. In this case, the first and second test buttons include a pressing portion coupled to the cover, a contact portion contacting a trip portion of the lower part of the receptacle body, and a connection portion connecting the pressing portion and the contact portion. In addition, the first and second test buttons are arranged in a shape symmetrical with each other.

The spring is used as a leaf spring, the first and second test button is formed with a spring groove for receiving one side and the other side of the leaf spring, respectively.

According to another preferred embodiment of the present invention, the first and second test buttons may further include first and second tab buttons mounted on the lower side of the other side.

According to the receptacle according to the present invention, by providing separate first and second test buttons, mechanical and electrical stress due to insulation and wiring breakdown, overuse or overcurrent, connection failure and excessive mechanical damage to insulation and wiring, including grounding fault Etc., it can detect and test arc faults that cannot be detected by ground-coupled protection receptacles. In addition, the first and second test buttons for testing ground and arc faults operate more safely by operating separate first and second tap buttons respectively mounted to the first and second test buttons without shorting the circuit directly. Test can be performed. Furthermore, the first and second test buttons are integrally formed extending from the top to the bottom of the receptacle to reduce the size of the receptacle, so that they can be easily installed during use.

Hereinafter, although a receptacle according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, the present invention is not limited or limited to the following embodiments.

Example 1

2 shows a plan view of a receptacle according to a first embodiment of the present invention.

Referring to FIG. 2, the receptacle 100 is mounted in the receptacle body 105, the cover 110 coupled to the upper portion of the receptacle body 105, and the receptacle body 105, respectively, and one side of the receptacle 100. The first and second test buttons 121 and 122 exposed to the outside are included.

In this case, one side of the first and second test buttons 121 and 122 may be exposed to the outside of the cover 110 to allow the user to operate the first and second test buttons 121 and 122, respectively. Second button holes 131 and 132 are formed. In addition, a reset button 115 is provided between the first and second test buttons 121 and 122 to allow the circuit to be restored again when a circuit such as a short circuit occurs due to a fault such as a short circuit. Further, the cover 110 is formed with connectors 125 corresponding to the three-phase outlet to accommodate the three-phase outlet to be connected to the circuit inside the receptacle body 105.

A yoke 135 is coupled between the receptacle body 105 and the cover 110. At this time, the coupling holes 140 are formed at one side and the other side of the yoke 135 so that the receptacle 100 can be easily fixed by using a bolt, a screw, or the like at an inner wall of the building to be wired.

The first test button 121 serves as an arc test button for detecting and testing an arc defect, and the second test button 122 serves as a ground test button for detecting and testing a ground defect. .

FIG. 3 is a cross-sectional view of the receptacle shown in FIG. 2 taken along the line A-A.

2 and 3, first and second button receivers 151 and 152 capable of accommodating the first and second test buttons 121 and 122 on both sides of the receptacle body 105. Is formed. That is, one side of the first and second test buttons 121 and 122 is inserted into the first and second button holes 131 and 132 formed in the cover 110, and the first and second test buttons 121 and 122 are formed in the receptacle body 105. It is mounted inside the receptacle 100 through the two button receiving portions 151, 152. In this case, the first and second test buttons 121 and 122 are formed in a shape corresponding to the inner wall of the cover 110 and the receptacle main body 105 and extend to the trip part 175 below the receptacle main body 105. FIG. 4 shows an enlarged perspective view of the first and second test buttons among the receptacles shown in FIG. 2.

2 to 4, the first and second test buttons 121 and 122 are formed to be symmetrical with each other, and the pressing part 145 and the receptacle body 105 which are coupled to the cover 110 are lowered. And a contact portion 155 contacting the trip portion 175 of the contact portion and a connection portion 160 connecting the pressing portion 145 and the contact portion 155.

In this case, first and second spring grooves 171 and 172 are formed at one side of the connection portion 160 of the first and second test buttons 121 and 122, respectively. One side and the other side of the spring 165 are coupled to the first and second spring grooves 171 and 172 so that the first and second test buttons 121 and 122 have a restoring force. That is, when the user presses the first or second test buttons 121 and 122 downward to test the arc or ground fault, the contact portion 155 of the first and second test buttons 121 and 122 may be connected to the receptacle body ( 105. After testing the arc or ground fault by contacting the bottom trip portion 175, the first and second test buttons 121, 122 are returned to their original positions by the elastic force of the spring 165. In this case, The spring 165 uses a leaf spring to easily mount the spring 165 in a narrow space inside the receptacle body 105.

In the present embodiment, the first and second test buttons 121 and 122 are shown to extend to the bottom of the receptacle body 105 corresponding to the inner wall of the cover 110 and the receptacle body 105, but the receptacle The first and second test buttons 121 and 122 may be formed in various shapes so that the first and second test buttons 121 and 122 may be mounted in correspondence to design conditions of circuits and components coupled to the inside of the 100.

Example 2

5 is a plan view of a receptacle according to a second embodiment of the present invention.

Referring to FIG. 5, the receptacle 200 is mounted in the receptacle body 205, the cover 210 coupled to the upper portion of the receptacle body 205, and the receptacle body 205, respectively, and one side of the receptacle 200 is covered. The first and second test buttons 221 and 222 exposed to the outside are included.

In this case, one side of the first and second test buttons 221 and 222 may be exposed to the outside of the cover 210 to allow the user to operate the first and second test buttons 221 and 222, respectively. Second button holes 231 and 232 are formed. In addition, a reset button 215 is provided between the first and second test buttons 221 and 222 so that the circuit can be restored again when a defect such as a short circuit occurs and the circuit is cut off. In addition, the cover 210 is formed with connectors 225 corresponding to the three-phase outlet to accommodate the three-phase outlet to be connected to the circuit inside the receptacle body 205.

A yoke 235 is coupled between the receptacle body 205 and the cover 210. At this time, the coupling holes 240 are formed at one side and the other side of the yoke 235 so that the receptacle 200 can be easily fixed by using a bolt, a screw, or the like at an inner wall of the building to be wired.

The first test button 221 serves as an arc test button for detecting and testing an arc defect, and the second test button 222 serves as a ground test button for detecting and testing a ground defect. .

FIG. 6 is a cross-sectional view of a portion A-A cut out of the receptacle illustrated in FIG. 5.

5 and 6, first and second button receiving parts 251 and 252 may accommodate the first and second test buttons 221 and 222 on both sides of the receptacle body 205. Is formed. That is, one side of the first and second test buttons 221 and 222 is inserted into the first and second button holes 231 and 232 formed in the cover 210, and the first and second test buttons 221 and 222 are formed in the receptacle body 205. It is mounted inside the receptacle 200 through the two button receiving portions 251 and 252. In this case, the first and second test buttons 221 and 222 are formed in a shape corresponding to the inner wall of the cover 210 and the receptacle body 205 and extend down to the bottom of the receptacle body 205.

In this case, the first and second tap buttons 281 and 282 are coupled between the first and second test buttons 221 and 222 and the trip part 275 below the receptacle body 205, respectively.

FIG. 7 illustrates an enlarged perspective view of the first and second test buttons among the receptacles shown in FIG. 5.

5 to 7, the first and second test buttons 221 and 222 are formed to be symmetrical with each other, and the pressing part 245 and the receptacle body 205 that are coupled to the cover 210 are lower. The contact part 255 which contacts the trip part 275 of the contact part, and the connection part 260 which connects the press part 245 and the contact part 255 are included.

In this case, first and second spring grooves 271 and 272 are formed at one side of the connection part 260 of the first and second test buttons 221 and 222, respectively. One side and the other side of the spring 265 are coupled to the first and second spring grooves 271 and 272 so that the first and second test buttons 221 and 222 have a restoring force. That is, when the user presses the first or second test buttons 221 and 222 downward to test the arc or the ground fault, the contact portion 255 of the first and second test buttons 221 and 222 is connected to the receptacle body ( 205 by testing the arc or ground fault by operating the first and second tap buttons 281 and 282 between the trip part 275 and the contact 255 at the bottom, respectively, And the second test buttons 221 and 222 return to their original positions.

In this case, the spring 265 uses a leaf spring to easily mount the spring 265 in a narrow space inside the receptacle body 205.

In the present embodiment, the first and second test buttons 221 and 222 are shown to extend to the bottom of the receptacle body 205 corresponding to the inner wall of the cover 210 and the receptacle body 205, but the receptacle The first and second test buttons 221 and 222 may be formed in various forms so that the first and second test buttons 221 and 222 may be mounted in correspondence to design conditions of circuits and components coupled to the inside of the 200.

As described above, according to the receptacle according to the present invention, by providing separate first and second test buttons, mechanical and electrical stress due to insulation and wiring breakdown, overuse or overcurrent, connection failure and insulation and wiring, including grounding fault It can detect and test arc faults that could not be detected by ground-coupled protection receptacles, for example, due to excessive mechanical damage to the device.

In addition, the first and second test buttons for testing ground and arc faults operate separate first and second tap buttons respectively mounted to the first and second test buttons without shorting the integrated circuit. As a result, tests can be performed more safely.

Furthermore, the first and second test buttons are integrally formed extending from the top to the bottom of the receptacle to reduce the size of the receptacle, so that they can be easily installed during use.

In the above, the receptacles according to the preferred embodiments of the present invention have been described and illustrated, but the present invention is not limited to the above-described embodiments, and the present invention without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in the field will understand that various changes are made.

Claims (10)

In the receptacle used in the power distribution system, Receptacle body; A cover coupled to an upper portion of the receptacle body; First and second test buttons respectively mounted in the receptacle body, and one side of which is exposed to the outside through the cover; And And a spring coupled between the first and second test buttons to provide restoring force to the first and second test buttons. The method of claim 1, Receptacle, characterized in that the first and second button receiving portion for receiving the first and the second test button is formed inside the receptacle body, respectively. The method of claim 1, The cover is a receptacle, characterized in that the first and second button holes are formed so that one side of the first and second test button is exposed to the outside, respectively. The method of claim 1, And the first test button is an arc test button for testing an arc defect. The method of claim 1, And the second test button is a ground test button for testing ground coupling. The method of claim 1, The first and second test buttons Pushing portion coupled to the cover; A contact portion in contact with a tripping portion under the receptacle body; And Receptacle comprising a connecting portion for connecting the pressing portion and the contact portion. The method of claim 1, And the first and second test buttons are arranged in a symmetrical shape with each other. The method of claim 1, And the spring is a leaf spring. The method of claim 8, Receptacles, characterized in that the first and second test button is formed with spring grooves respectively receiving one side and the other side of the leaf spring. The method of claim 1, Receptacle further comprises a first and a second tab button mounted to the other bottom of the first and second test button.