KR20110011332U - Receptacle - Google Patents

Receptacle Download PDF

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KR20110011332U
KR20110011332U KR2020100005719U KR20100005719U KR20110011332U KR 20110011332 U KR20110011332 U KR 20110011332U KR 2020100005719 U KR2020100005719 U KR 2020100005719U KR 20100005719 U KR20100005719 U KR 20100005719U KR 20110011332 U KR20110011332 U KR 20110011332U
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South Korea
Prior art keywords
plug
ground
grounding
terminal
seating groove
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KR2020100005719U
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Korean (ko)
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KR200458364Y1 (en
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박연숙
해경 기
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해경 기
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

본 고안은 전원단자(2)와 접지판(3)이 구비되는 플러그(1)가 체결되도록 전원홀(4)과 접지단자가 구비되는 플러그안착홈(5)이 적어도 1개소에 구비되는 콘센트에 있어서, 반복사용중 접지단자의 손상을 방지하면서 접지판과의 접지불량을 방지하기 위해 접지가이드(10), 접지단자수용부(20), 접지단자(30)를 포함하여 주요구성으로 이루어진다.
이에 따라, 본 고안은 접지가이드에 의해 플러그가 정위치에 삽입되어 위치고정됨에 따라 접지단자와 접지판의 접촉불량 및 외력에 의한 접지면의 단락현상이 방지되고, 특히 접지단자의 만곡부가 단사이즈로 구비되어 접지판과 국부적으로 면접되므로 플러그 체결시 수직하중에 의한 꺾임 등을 포함하는 손상이 방지되는 효과가 있다.The present invention provides a power outlet 4 and a plug seating groove 5 provided with a grounding terminal at a power outlet 4 and at least one place so that a plug 1 having a ground plate 3 is fastened. In order to prevent damage to the grounding terminal during repeated use, the grounding guide 10, the grounding terminal accommodating portion 20, and the grounding terminal 30 to prevent the ground fault with the ground plate is made of a main configuration.
As a result, the present invention prevents short-circuit between the ground terminal and the ground plate due to an external force, as the plug is inserted into the fixed position by the grounding guide, and the short circuit portion of the ground terminal is short in size. Since it is provided as a local interview with the ground plate, there is an effect of preventing damage, including bending due to vertical load when the plug is fastened.

Description

콘센트{Receptacle}Outlet {Receptacle}

본 고안은 콘센트에 관한 것으로, 보다 상세하게는 플러그를 체결시 밀림현상으로 인해 접지단자가 꺾여 손상되는 것을 방지하기 위한 콘센트에 관한 것이다.The present invention relates to an outlet, and more particularly to an outlet for preventing damage to the ground terminal bent due to the sliding phenomenon when the plug is fastened.

일반적으로 콘센트는 전기의 옥내배선에서 실내에 사용하는 코드를 접속하기 위해 배선에 연결하여 플러그를 삽입하는 연결기구로서, 전기가 통전되는 전원홀과 지락전류를 안전하게 대지로 흘려줌과 더불어 보호계전기(누전차단기)의 동작을 확실히 하기 위한 접지단자가 구비된다.In general, an outlet is a connecting mechanism that connects a wire and inserts a plug to connect a cord used indoors in an indoor wiring of electricity. A power supply and a ground fault current flow safely to the ground and a protective relay ( A ground terminal for ensuring the operation of the earth leakage breaker) is provided.

이때, 접지단자는 플러그의 외주면에 노출되도록 형성된 접지판과 대응하는 콘센트의 내주면에 구비되고, 탄성을 가지도록 절곡형성되어 플러그를 체결시 접지판과 접지된다.At this time, the ground terminal is provided on the inner circumferential surface of the outlet corresponding to the ground plate formed so as to be exposed to the outer circumferential surface of the plug, is bent to have elasticity and is grounded with the ground plate when fastening the plug.

그러나, 반복사용중 플러그의 삽입력에 의해 접지단자가 쉽게 꺾여 접촉불량이 발생됨은 물론 꺾인 접지단자를 인위적으로 펴는 것을 수회 반복할 경우 부러지면서 콘센트를 전체적으로 교체해야 하는 문제점이 따랐다.However, when the grounding terminal is easily bent due to the insertion force of the plug during repeated use, contact failure occurs as well as the problem of having to replace the outlet as a whole when the grounding terminal is repeatedly artificially unfolded.

이에, 상기 문제점을 해결하기 위해 개시된 종래에 콘센트를 살펴보면, 특허공개번호 제10-2008-0079720호에서 노출접지의 선단부를 수용하여 이동을 제한하는 벽을 형성하여 플러그의 삽입,출에 의한 노출접지의 손상 및 접촉불량을 방지하도록 하고 있다.Thus, when looking at the conventional outlet disclosed in order to solve the above problems, Patent Publication No. 10-2008-0079720 in the exposure ground by receiving the tip of the exposed ground to form a wall to limit the movement of the plug exposed, the insertion ground To prevent damage and poor contact.

그러나, 상기한 기술은 콘센트 케이스상에 이동제한 벽을 별도로 형성하므로 부품제작에 따른 비용이 승상되고, 또 조립시 노출접지의 선단부를 이동제한 벽사이에 위치되도록 해야 하므로 조립에 따른 작업성이 저하되는 문제점이 따랐다.However, since the above-described technique forms a separate movement restriction wall on the outlet case, the cost of manufacturing the component is increased, and the end portion of the exposed ground must be located between the movement restriction walls when assembling, thus reducing workability due to assembly. There was a problem.

또한, 사용중 노출접지의 선단부가 이동제한 벽에 걸려 확장된 상태로 위치고정시 접지불량으로 이어질 뿐만 아니라, 플러그의 삽입방향에 따른 접촉면 불일치 및 사용중 외력에 의해 플러그의 위치가 가변되어 접촉불량으로 이어지는 폐단이 따랐다.In addition, the tip of the exposed ground during use is extended to the wall to limit movement, which leads to ground failure when the position is fixed, and the position of the plug is changed due to the contact surface mismatch according to the insertion direction of the plug and external force during use, resulting in contact failure. Pulpit followed.

본 고안은 상기한 점에 착안한 것으로서, 보다 상세하게는 구조가 간단하면서 반복사용 중 접지단자가 휘는 등의 손상이 방지되고, 플러그의 유동 및 접지단자의 탄성력저하로 인한 접촉불량을 방지하기 위한 콘센트를 제공하는 것을 그 목적으로 한다.The present invention has been made in view of the above, and in more detail, the structure is simple and damages such as bending of the ground terminal during repeated use, and to prevent contact failure due to the flow of the plug and the elastic force of the ground terminal is reduced The purpose is to provide an outlet.

이러한 목적을 달성하기 위해 본 고안의 특징은, 전원단자(2)와 접지판(3)이 구비되는 플러그(1)가 체결되도록 전원홀(4)과 접지단자가 구비되는 플러그안착홈(5)이 적어도 1개소에 구비되는 콘센트에 있어서, 상기 플러그안착홈(5)의 입구부에 돌출형성되고, 접지판(3)과 대응하는 플러그(1) 외주면에 음양각형태로 맞물리도록 구비되는 접지가이드(10); 상기 접지가이드(10)와 플러그안착홈(5)의 바닥면 사이에 "ㄷ"자 형태로 형성되는 접지단자수용부(20); 상기 접지단자수용부(20)에 설치되어 중간부분이 국부적으로 돌출되는 만곡부(32)와, 만곡부(32)와 일체로 절곡되어 플러그안착홈(5)의 바닥면에 고정되는 체결부(34)가 구비되는 접지단자(30);를 포함하여 이루어지는 것을 특징으로 한다.Features of the present invention to achieve this purpose, the plug seating groove 5 is provided with a power supply hole 4 and a grounding terminal to fasten the plug 1 is provided with a power supply terminal 2 and a ground plate (3) In the outlet provided in at least one place, a grounding guide protruding from the inlet portion of the plug seating groove (5), the grounding guide is provided to engage the ground plate 3 and the outer peripheral surface of the plug (1) in a negative angle ( 10); A ground terminal accommodating part 20 formed between the ground guide 10 and the bottom surface of the plug seating groove 5 in a "c" shape; A curved portion 32 installed in the ground terminal accommodating portion 20 and a middle portion protrudes locally, and a fastening portion 34 bent integrally with the curved portion 32 and fixed to the bottom surface of the plug seating groove 5. It characterized in that it comprises a; ground terminal 30 is provided.

이때, 상기 접지가이드(10)는 상면에 경사면(12)이 형성되는 것을 특징으로 한다.At this time, the ground guide 10 is characterized in that the inclined surface 12 is formed on the upper surface.

또한, 상기 접지단자(30)의 만곡부(32)는 접지가이드(10)에 의해 플러그안착홈(5)의 깊이 대비 20~80%의 길이로 형성되는 것을 특징으로 한다.In addition, the curved portion 32 of the ground terminal 30 is characterized in that the ground guide 10 is formed with a length of 20 to 80% of the depth of the plug seating groove (5).

이상의 구성 및 작용에 의하면, 접지가이드에 의해 플러그가 정위치에 삽입되어 위치고정됨에 따라 접지단자와 접지판의 접촉불량 및 외력에 의한 접지면의 단락현상이 방지되고, 특히 접지단자의 만곡부가 단사이즈로 구비되어 접지판과 국부적으로 면접되므로 플러그 체결시 수직하중에 의한 꺾임 등을 포함하는 손상이 방지되는 효과가 있다.According to the above configuration and action, the plug is inserted into the fixed position by the grounding guide and the position is fixed, thereby preventing contact between the grounding terminal and the grounding plate and short circuit of the grounding surface due to external force, especially the curved portion of the grounding terminal Since it is provided in a size and is interviewed locally with the ground plate, there is an effect of preventing damage, including bending due to vertical load, when the plug is fastened.

도 1은 본 고안에 따른 콘센트의 주요구성을 나타내는 종단면도.
도 2는 본 고안에 따른 콘센트의 주요구성을 나타내는 횡단면도.
도 3은 본 고안에 따른 콘센트의 작동상태를 나타내는 구성도.1 is a longitudinal sectional view showing the main configuration of the outlet according to the present invention.
Figure 2 is a cross-sectional view showing the main configuration of the outlet according to the present invention.
Figure 3 is a block diagram showing an operating state of the outlet according to the present invention.

이하, 첨부된 도면을 참조하여 본 고안의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 고안은 전원단자(2)와 접지판(3)이 구비되는 플러그(1)가 체결되도록 전원홀(4)과 접지단자가 구비되는 플러그안착홈(5)이 적어도 1개소에 구비되는 콘센트에 있어서, 반복사용중 접지단자의 손상을 방지하면서 접지판과의 접지불량을 방지하기 위해 접지가이드(10), 접지단자수용부(20), 접지단자(30)를 포함하여 주요구성으로 이루어진다.The present invention provides a power outlet 4 and a plug seating groove 5 provided with a grounding terminal at a power outlet 4 and at least one place so that a plug 1 having a ground plate 3 is fastened. In order to prevent damage to the grounding terminal during repeated use, the grounding guide 10, the grounding terminal accommodating portion 20, and the grounding terminal 30 to prevent the ground fault with the ground plate is made of a main configuration.

본 고안에 따른 접지가이드(10)는 플러그안착홈(5)의 입구부에 돌출형성되고, 접지판(3)과 대응하는 플러그(1) 외주면에 음양각형태로 맞물리도록 구비된다. 접지가이드(10)는 서로 대향하는 위치에 한 쌍으로 구비되고, 도 2처럼 접지판(3)이 구비되도록 함몰형성된 플러그(1)의 외주면에 맞물려 플러그(1)가 초기 진입시 정위치에 체결되도록 안내하고, 또 플러그(1)가 체결된 상태로 맞물려 유동을 방지하는 역할을 수행한다.The grounding guide 10 according to the present invention protrudes from the inlet of the plug seating groove 5 and is provided to be engaged with the ground plate 3 and the outer circumferential surface of the corresponding plug 1 in a negative angle. The grounding guides 10 are provided in pairs at positions opposite to each other, and are engaged with the outer circumferential surface of the plug 1 recessed to have the ground plate 3 as shown in FIG. It guides and serves to prevent the flow by engaging the plug (1) is fastened.

이때, 상기 접지가이드(10)는 상면에 경사면(12)이 형성된다. 경사면(12)은 플러그안착홈(5) 중심으로 갈수록 하방향을 향하도록 경사각으로 형성되어 플러그(1)의 초기 진입이 용이하도록 안내한다.At this time, the grounding guide 10 has an inclined surface 12 is formed on the upper surface. The inclined surface 12 is formed at an inclined angle to face downward toward the center of the plug seating groove 5 to guide the initial entry of the plug 1 easily.

또한, 본 고안에 따른 접지단자수용부(20)는 상기 접지가이드(10)와 플러그안착홈(5)의 바닥면 사이에 "ㄷ"자 형태로 형성된다. 접지단자수용부(20)는 접지가이드(10)와 종방향으로 일직선을 이루는 플러그안착홈(5)의 내측 벽면에 후술하는 접지단자(30)가 국부적으로 수용되도록 형성된 공간으로서, 접지단자(30)의 선단부가 수용된 상태로 중간부분이 노출된다.In addition, the ground terminal accommodating portion 20 according to the present invention is formed in a "c" shape between the ground guide 10 and the bottom surface of the plug seating groove (5). The ground terminal accommodating part 20 is a space formed to locally receive the ground terminal 30 to be described later on the inner wall surface of the plug seating groove 5 which is in a line with the ground guide 10 in the longitudinal direction, and the ground terminal 30. The middle part is exposed while the tip part of the head is accommodated.

이에 플러그(1)를 체결시 접지단자(30)의 만곡부(32) 선단부가 접지가이드(10)에 가려진 상태로 위치되므로 플러그(1)의 수직압력이 만곡부(32)의 중간부분으로 가해지면서 외력이 흡수되므로 사용중 접지단자(30)의 꺾임 방지된다.Therefore, when the plug 1 is fastened, the tip of the curved part 32 of the ground terminal 30 is positioned in a state of being covered by the ground guide 10, so that the vertical pressure of the plug 1 is applied to the middle of the curved part 32 while the external force is applied. Since it is absorbed, the ground terminal 30 is prevented from being bent during use.

또한, 본 고안에 따른 접지단자(30)는 접지단자수용부(20)에 설치되어 중간부분이 국부적으로 돌출되는 만곡부(32)와, 만곡부(32)와 일체로 절곡되어 플러그안착홈(5)의 바닥면에 고정되는 체결부(34)가 구비된다. 접지단자(30)는 탄성이 우수한 전도성 재질로 형성되고, 체결부(34)를 통하여 안착홈(5)의 바닥면에 고정된다. In addition, the grounding terminal 30 according to the present invention is installed in the grounding terminal accommodating portion 20, the middle portion of the curved portion 32 and the bending portion 32 is integrally bent and the plug seating groove 5 Fastening portion 34 is fixed to the bottom surface of the. The ground terminal 30 is formed of a conductive material having excellent elasticity, and is fixed to the bottom surface of the seating groove 5 through the fastening part 34.

그리고 체결부(34)의 양단에 만곡부(32)가 직교하도록 형성되는바, 만곡부(32)는 아치형으로 절곡되어 중앙부분이 접지가이드(10)보다 돌출되도록 형성되고, 선단부는 접지단자수용부(20)에 가려진 상태로 구비된다.And the curved portion 32 is formed at both ends of the fastening portion 34 orthogonal to the bar, the curved portion 32 is bent in an arc shape is formed so that the center portion protrudes than the grounding guide 10, the front end is a ground terminal receiving portion ( 20) in a hidden state.

이에 플러그(1)를 체결시 접지판(3)이 접지가이드(10)에 의해 접지단자(30)의 만곡부(32)와 일직선상에 위치되고, 이어서 도 3에 도시된 바와 같이 플러그(1)가 집입시 만곡부(32)의 선단부는 접지가이드(10)에 가려진 상태로 중앙부분이 접지판(3)과 미끄럼운동되면서 체결됨에 따라 플러그(1) 체결시 수직하중에 의한 접지단자(30)의 꺾임 방지된다. Accordingly, when the plug 1 is fastened, the ground plate 3 is positioned in line with the curved portion 32 of the ground terminal 30 by the grounding guide 10, and then the plug 1 is shown in FIG. 3. When the front end portion of the curved portion 32 is inserted into the ground plate (10) while the center portion is engaged with the ground plate (3) by sliding the fastening when the plug (1) of the ground terminal 30 by the vertical load when fastening Bent.

그리고, 플러그(1)의 접지판(3)이 만곡부(32)에 면접시, 만곡부(32)가 탄력적으로 탄성변형되면서 접지판(3)상에 밀착되므로 사용중 접지불량이 방지된다.When the ground plate 3 of the plug 1 is interviewed by the curved portion 32, the curved portion 32 is elastically deformed and closely adhered to the ground plate 3, thereby preventing ground failure during use.

이때, 상기 접지단자(30)의 만곡부(32)는 플러그안착홈(5)의 깊이 대비 20~80%의 길이로 형성된다. 만곡부(32)는 접지가이드(10)에 의해 형성된 접지단자수용부(20)에 위치되도록 형성됨에 따라 접지가이드(10)의 길이에 반비례한 길이로 형성되는바, 여기서 만곡부(32)의 길이가 플러그안착홈(5)의 깊이 대비 20%미만으로 형성되면 플러그(1)를 체결후 접지단자(30)와 접지판(3)의 접촉불량율이 높아지고, 80%초과의 길이로 형성시 만곡부(32)의 내구성이 저하되어 플러그(1)가 진입하는 중에 수직하중에 의해 꺾이는 문제점이 따른다. At this time, the curved portion 32 of the ground terminal 30 is formed with a length of 20 ~ 80% of the depth of the plug seating groove (5). As the curved portion 32 is formed to be located in the ground terminal accommodating portion 20 formed by the grounding guide 10, the length of the curved portion 32 is inversely proportional to the length of the grounding guide 10. If less than 20% of the depth of the plug seating groove 5 is formed, the contact failure rate between the ground terminal 30 and the ground plate 3 is increased after fastening the plug 1, and the curved portion 32 is formed when the length is greater than 80%. The durability of) decreases and the bending of the plug 1 by the vertical load is caused.

따라서 만곡부(32)는 플러그안착홈(5)의 깊이 대비 20~80%의 길이로 형성되는 것이 바람직하다.Therefore, the curved portion 32 is preferably formed with a length of 20 to 80% of the depth of the plug seating groove (5).

10: 접지가이드 20: 접지단자수용부 30: 접지단자10: grounding guide 20: ground terminal accommodating portion 30: grounding terminal

Claims (3)

전원단자(2)와 접지판(3)이 구비되는 플러그(1)가 체결되도록 전원홀(4)과 접지단자가 구비되는 플러그안착홈(5)이 적어도 1개소에 구비되는 콘센트에 있어서,
상기 플러그안착홈(5)의 입구부에 돌출형성되고, 접지판(3)과 대응하는 플러그(1) 외주면에 음양각형태로 맞물리도록 구비되는 접지가이드(10);
상기 접지가이드(10)와 플러그안착홈(5)의 바닥면 사이에 "ㄷ"자 형태로 형성되는 접지단자수용부(20); 및
상기 접지단자수용부(20)에 설치되어 중간부분이 국부적으로 돌출되는 만곡부(32)와, 만곡부(32)와 일체로 절곡되어 플러그안착홈(5)의 바닥면에 고정되는 체결부(34)가 구비되는 접지단자(30);를 포함하여 이루어지는 것을 특징으로 하는 콘센트.In an outlet provided with at least one plug seating groove (5) provided with a power supply hole (4) and a grounding terminal to fasten the plug (1) provided with the power supply terminal (2) and the ground plate (3),
A grounding guide 10 protruding from the inlet portion of the plug seating groove 5 and provided to be engaged with the ground plate 3 and the outer circumferential surface of the plug 1 in a yin-yang shape;
A ground terminal accommodating part 20 formed between the ground guide 10 and the bottom surface of the plug seating groove 5 in a "c"shape; And
A curved portion 32 installed in the ground terminal accommodating portion 20 and a middle portion protrudes locally, and a fastening portion 34 bent integrally with the curved portion 32 and fixed to the bottom surface of the plug seating groove 5. The grounding terminal 30 is provided with; characterized in that comprises a. 제 1항에 있어서,
상기 접지가이드(10)는 상면에 경사면(12)이 형성되는 것을 특징으로 하는 콘센트.The method of claim 1,
The grounding guide 10 is an outlet characterized in that the inclined surface 12 is formed on the upper surface. 제 1항에 있어서,
상기 접지단자(30)의 만곡부(32)는 접지가이드(10)에 의해 플러그안착홈(5)의 깊이 대비 20~80%의 길이로 형성되는 것을 특징으로 하는 콘센트.The method of claim 1,
The curved portion 32 of the ground terminal 30 is characterized in that the outlet is formed by the grounding guide 10 to the length of 20 ~ 80% of the depth of the plug seating groove (5).
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160000871U (en) * 2014-09-04 2016-03-14 해경 기 Outlet
KR200490196Y1 (en) * 2018-08-17 2019-10-08 만 석 김 Device of earth contact plate of the socket
KR20230012759A (en) * 2021-07-16 2023-01-26 남범규 Receptacles and plugs for easy mating and dismounting

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KR960007501Y1 (en) * 1993-12-27 1996-08-29 대우전자 주식회사 Earth structure of adapter
KR100330570B1 (en) * 1999-07-29 2002-03-29 신봉일 An alloy for manufacturing mechanical appurtenance
US6922389B1 (en) * 2000-11-15 2005-07-26 Qualcomm, Incorporated Method and apparatus for reducing transmission power in a high data rate system
KR200351818Y1 (en) * 2004-03-18 2004-05-28 강상원 A ground for multi-tab
KR20080079720A (en) * 2007-02-28 2008-09-02 김경복 Fxcon

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160000871U (en) * 2014-09-04 2016-03-14 해경 기 Outlet
KR200490196Y1 (en) * 2018-08-17 2019-10-08 만 석 김 Device of earth contact plate of the socket
KR20230012759A (en) * 2021-07-16 2023-01-26 남범규 Receptacles and plugs for easy mating and dismounting

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