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KR0112814Y1 - Earth detaching device - Google Patents

Earth detaching device Download PDF

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Publication number
KR0112814Y1
KR0112814Y1 KR2019940024612U KR19940024612U KR0112814Y1 KR 0112814 Y1 KR0112814 Y1 KR 0112814Y1 KR 2019940024612 U KR2019940024612 U KR 2019940024612U KR 19940024612 U KR19940024612 U KR 19940024612U KR 0112814 Y1 KR0112814 Y1 KR 0112814Y1
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ground
detection
unit
power
power supply
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KR960012716U (en
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김정무
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김정무
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/717Structural association with built-in electrical component with built-in light source
    • H01R13/7175Light emitting diodes (LEDs)
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00Connectors or connections adapted for particular applications
    • H01R2201/20Connectors or connections adapted for particular applications for testing or measuring purposes

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electronic Switches (AREA)

Abstract

본 고안은 접지 검출장치는 교류전원의 라인에서 접지점을 찾아 전기기기를 접지시키도록 하는 것으로서 종래에는 네온관 및 광도전 소자를 사용하여 접지를 검출하였으나, 네온관 및 광도전 소자는 동작속도가 느리므로 접지점을 찾는데 많은 시간이 소요되어 교류전원이 인가되는 초기의 많은 시간동안 기기를 접지시키지 못하였다.The present invention is a ground detection device to find the ground point in the line of the AC power to ground the electrical equipment, conventionally using the neon tube and photoconductive element to detect the ground, but the neon tube and photoconductive element is a slow operation speed ground point It took a long time to find the power supply, and the equipment could not be grounded for much of the initial time when AC power was applied.

본 고안은 전원라인과 접지검출/구동 제어부(8)의 사이에 직렬로 연결되어 접지검출/구동 제어부(8)의 제어에 따라 선택적으로 동작하는 발광 다이오드(PD1)(PD2)의 출력광을 각기 수광하여 상기 제1 및 제2검출부(2)(3)에 검출신호로 입력하는 수광 트랜지스터(PT1)(PT2)를 구비하여 전원라인에서 접지점을 빠른 시간내에 찾음으로써 기기를 온하는 초기시간에 바로 기기를 접지시켜 안전사고를 미연에 방지할 수 있다.The present invention is connected in series between the power supply line and the ground detection / drive control unit 8, the output light of the light emitting diode (PD 1 ) (PD 2 ) selectively operates under the control of the ground detection / drive control unit (8) And a light receiving transistor (PT 1 ) (PT 2 ) for receiving the respective signals and input them to the first and second detectors (2) and (3) as detection signals. The device can be grounded immediately at the initial time to prevent safety accidents.

Description

접지 검출장치Earth detector

첨부된 도면은 본 고안의 접지 검출장치를 보인 회로도이다.The accompanying drawings are circuit diagrams showing a ground detection device of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 가상접지점 2 : 제1검출부1: virtual ground point 2: first detection unit

3 : 제2검출부 4,5 : 검출신호 출력부3: second detector 4,5 detection signal output unit

6 : 접지연결 구동부 7 : 접지선택 연결부6: Ground connection drive part 7: Ground selection connection part

8 : 접지검출/구동 제어부 AC : 교류전원8: Ground detection / driving control unit AC: AC power

A, B : 전원라인 PD1, PD2: 포토 다이오드A, B: Power line PD 1 , PD 2 : Photodiode

PT1, PT2: 포토 트랜지스터PT 1 , PT 2 : phototransistor

본 고안은 세탁기, 전자레인지 및 냉장고 등을 비롯하여 전기장판 및 전기요 등과 같은 각종 전기기기 동작전원으로 입력되는 교류전원의 라인에서 접지점을 찾아 전기기기를 접지시키도록 하는 접지 검출장치에 관한 것으로 특히 본 출원인이 선출원한 1994년 실용신안등록 출원 제7734호(명칭 : 전기기기의 접지장치)를 개량한 접지 검출장치에 관한 것이다.The present invention relates to a grounding detection device for grounding an electrical device by finding a grounding point in a line of AC power input to an operation power source of various electrical equipment such as a washing machine, a microwave oven, a refrigerator, and the like. The present invention relates to a ground detection device which is an improvement of 1994 Utility Model Registration Application No. 7772 (name: grounding device for electric equipment).

본 출원인이 선출원한 1994년 실용신안등록 출원 제7734호는 하나의 가상 접지를 만들고, 이 가상접지와 2개의 전원라인 사이에 네온관을 직렬로 연결하여 선택적으로 동작시키며, 네온관에 광도전 소자를 인접되게 설치하여 내온관의 점등상태를 검출하고, 광도전 소자가 검출한 네온관의 점등상태로 접지를 검출하게 하였다.The Utility Model Registration No. 7734, filed by the applicant in advance, makes one virtual ground, selectively connects a neon tube in series between the virtual ground and two power lines, and selectively operates a photoconductive element adjacent to the neon tube. In this way, the lighting state of the heat-resistant tube was detected, and the ground was detected in the lighting state of the neon tube detected by the photoconductive element.

그러나 상기한 종래의 기술은 교류전원의 라인에서 접지점을 정확히 찾아 기기를 접지시킬 수 있는 반면에 네온관 및 광도전 소자는 동작속도가 느리므로 접지점을 찾는 데 많은 시간이 소요되어 교류전원이 인가되는 초기의 많은 시간동안 기기를 접지시키지 못하는 문제점이 있었다.However, the above-mentioned conventional technique can accurately ground the device by finding the ground point in the line of AC power, whereas the neon tube and the photoconductive element have a slow operation speed, so it takes a lot of time to find the ground point. There was a problem with the equipment not grounding for many hours.

본 고안은 상기와 같은 종래의 제반 문제점을 해결하기 위하여 안출한 것으로서, 동작속도가 빠른 발광 다이오드 및 수광트랜지스터를 사용하여 접지점을 찾음으로써 교류전원이 인가되는 초기에 바로 기기를 접지시켜 안전사고의 발생을 미연에 방지할 수 있도록 하는 접지 검출장치를 제공하는데 그 목적이 있는 것으로 이를 첨부된 도면을 참조하여 상세히 설명한다.The present invention has been made to solve the above-mentioned conventional problems, by finding the ground point using a light emitting diode and a light receiving transistor with a fast operating speed, the grounding of the device immediately when the AC power is applied to the occurrence of a safety accident It is an object of the present invention to provide a ground detection device that can be prevented in advance will be described in detail with reference to the accompanying drawings.

첨부된 도면은 본 고안의 접지 검출장치를 보인 회로도로서 이에 도시된 바와 같이, 교류전원(AC)이 인가되는 전원라인(A)(B)와 가상접지점(1)의 사이에 직렬로 연결되어 전원라인(A)(B)이 접지되어 있는지를 각기 검출하는 제1검출부(2) 및 제2검출부(3)와, 상기 제1 및 제2검출부(2)(3)의 출력신호를 각기 정형·출력하는 검출신호 출력부(4)(5)와, 상기 검출신호 출력부(4)(5)의 출력신호를 조합하여 상기 가상 접지점(1)에 접지의 연결을 구동하는 접지연결 구동부(6)와, 전원라인(A)(B)의 중점의 가상접지를 만들고 상기 접지연결 구동부(6)의 구동에 따라 전원라인(A)(B) 또는 가상접지를 상기 가상 접지점(1)에 선택적으로 연결하는 접지선택 연결부(7)와 상기 제1검출부(2) 및 제2검출부(3)가 선택적으로 동작하게 하고 가상접지의 검출완료시 제1검출부(2) 및 제2검출부(3)가 동작되지 않도록함과 아울러 상기 접지 연결 구동부(6)가 동작하게 동작전원을 공급하는 접지검출/구동 제어부(8)를 구비한 접지 검출장치에 있어서, 상기 제1 및 제2검출부(2)(3)는, 전원라인(A)(B)과 접지검출/구동 제어부(8)의 사이에 직렬로 연결되어 접지검출/구동 제어부(8)의 제어에 따라 선택적으로 동작하는 발광 다이오드(PD1)(PD2)와 상기 발광 다이오드(PD1)(PD2)의 출력광을 각기 수광하여 상기 제1 및 제2검출부(2)(3)에 검출신호로 입력하는 수광 트랜지스터(PT1)(PT2)를 구성하였다.The accompanying drawings are a circuit diagram showing a ground detection apparatus of the present invention, as shown here, connected in series between the power supply line (A) (B) and the virtual ground point (1) to which the AC power (AC) is applied The output signals of the first and second detectors 3 and 3 and the first and second detectors 3 and 3 respectively detecting whether the lines A and B are grounded, respectively, Ground connection driver 6 for driving the connection of the ground to the virtual ground point 1 by combining the detection signal output section 4 and 5 to be output and the output signal of the detection signal output section 4 and 5. And a virtual ground of the midpoint of the power lines (A) and (B) and selectively connects the power line (A) or the virtual ground to the virtual ground point (1) according to the driving of the ground connection driver (6). The ground selection connecting portion 7 and the first detecting portion 2 and the second detecting portion 3 selectively operate, and upon detection of the virtual ground, the first detecting portion 2 and the second detecting portion A ground detection device comprising a ground detection / driving control unit 8 for supplying operating power for the ground connection driving unit 6 to operate while preventing the operation of the grounding unit 3, wherein the first and second detection units ( 2) (3) is a light emitting diode connected in series between the power supply line (A) (B) and the ground detection / drive control unit 8 and selectively operates under the control of the ground detection / drive control unit 8 ( A light receiving transistor PT 1 that receives the output light of PD 1 ) PD 2 and the light emitting diodes PD 1 PD 2 , and inputs them as detection signals to the first and second detection units 2 and 3, respectively. ) (PT 2 ).

도면의 설명중 미설명 부호SW는 전원 스위치이고, B+는 직류 동작전원이며, PTR1과 PTR2는 포토 트라이악이며, R1~R4는 저항이다.In the description of the drawings, reference numeral SW denotes a power switch, B + denotes a DC operating power source, PTR 1 and PTR 2 are phototriacs, and R 1 to R 4 are resistors.

이와 같이 구성된 본 고안의 접지 검출장치는 전원라인(A)(B)에 교류전원(AC)이 인가된 상태에서 전원 스위치(SW)를 온하고, 직류 동작전원(B+)이 공급되면, 접지검출 구동부(8)는 2개의 포토 트라이악(PTR1)(PTR2)의 발광부를 순차적으로 하나씩 동작시키고, 포토 트라이악(PTR1)(PTR2)의 발광부에서 발사되는 광을 수광부가 수광하여 도통상태가 되므로 제1 및 제2검출부(2)(3)의 발광 다이오드(PD1)(PD2)는 순차적으로 동작하게 된다.The ground detecting device of the present invention configured as described above turns on the power switch SW while the AC power AC is applied to the power line A and B, and when the DC operating power B + is supplied, the ground The detection driver 8 operates the light emitting units of the two photo triacs PTR 1 and PTR 2 one by one, and receives the light emitted from the light emitting units of the photo triacs PTR 1 and PTR 2 . As a result, the light emitting diodes PD 1 and PD 2 of the first and second detection units 2 and 3 operate sequentially.

여기서, 먼저 포토 트라이악(PTR1)의 수광부가 도통상태로 되었다고 가정하고, 전원라인(A)이 접지되어 있을 경우에는 전원라인(A)과 가상접지점(1)의 전원 및 위상이 동일하여 제1 검출부(2)의 발광 다이오드(PD1)가 점등되지 않으므로 수광 트랜지스터(PT1)로 입사되는 광이 없어 그가 오프되고, 이로 인하여 전원(B+)이 저항(R1)을 통해 검출신호 출력부(4)로 출력된다.Here, it is assumed that the light receiving portion of the photo triac PTR 1 is in a conducting state. When the power supply line A is grounded, the power supply and the phases of the power supply line A and the virtual ground point 1 are the same. 1 Since the light emitting diode PD 1 of the detection unit 2 is not turned on, there is no light incident on the light receiving transistor PT 1 and thus it is turned off, so that the power source B + outputs the detection signal through the resistor R 1 . It is output to the unit 4.

그리고 상기와는 반대로 전원라인(A) 접지되어 있지 않을 경우에는 전원라인(A)과 가상접지점(1)의 전위 및 위상이 상이하여 제1검출부(2)의 발광 다이오드(PD1)가 점등되고, 발광 다이오드(PD1)의 광을 수광 트랜지스터(PT1)가 수광하여 그가 온하므로 전원(B+)이 저항(R2) 및 수광 트랜지스터(PT1)을 통해 접지되고, 검출신호 출력부(4)에는 저전위가 입력된다.On the contrary, when the power supply line A is not grounded, the potential and phase of the power supply line A and the virtual ground point 1 are different from each other, so that the light emitting diode PD 1 of the first detection unit 2 is turned on. Since the light receiving transistor PT 1 receives the light of the light emitting diode PD 1 and turns it on, the power supply B + is grounded through the resistor R 2 and the light receiving transistor PT 1 , and the detection signal output unit ( In 4), the low potential is input.

다음에는 포토 트라이악(PTR2)의 수광부가 도통상태로 되었다고 가정하고, 전원라인(B)이 접지되어 있을 경우에는 전원라인(B)과 가상접지점(1)의 전위 및 위상이 동일하여 제2검출부(3)의 발광 다이오드(PD2)가 점등되지 않으므로 수광 트랜지스터(PT2)로 입사되는 광이 없어 그가 오프되고, 이로 인하여 전원(B+)이 저항(R4)을 통해 검출신호 출력부(4)로 출력된다.Next, assuming that the light receiving portion of the photo triac PTR 2 is in a conductive state, and when the power supply line B is grounded, the potential and phase of the power supply line B and the virtual ground point 1 are equal to each other. Since the light emitting diode PD 2 of the detector 3 is not turned on, there is no light incident on the light-receiving transistor PT 2 so that it is turned off, so that the power source B + is detected by the resistor R 4 . Is outputted as (4).

그리고 전원라인(B) 접지되어 있지 않을 경우에는 전원라인(B)과 가상접지점(1)의 전위 및 위상이 상이하여 제2검출부(3)의 발광 다이오드(PD2)가 점등되고, 발광 다이오드(PD2)의 광을 수광 트랜지스터(PT2)가 수광하여 그가 온되므로 전원(B+)이 저항(R4) 및 수광 트랜지스터(PT2)를 통해 접지되고, 검출신호 출력(5)에는 저전위가 입력된다.When the power supply line B is not grounded, the potential and phase of the power supply line B and the virtual ground point 1 are different so that the light emitting diode PD 2 of the second detection unit 3 is turned on and the light emitting diode ( The light of the PD 2 ) is received by the light receiving transistor PT 2 and turned on so that the power supply B + is grounded through the resistor R 4 and the light receiving transistor PT 2 , and the detection signal output 5 has a low potential. Is input.

이와 같이 전원라인(A)(B)의 접지에 따라 제1 및 제2검출부(2)(3)가 출력하는 검출신호를 검출신호 출력부(4)(5)가 각각 정형하여 출력하고, 검출신호 출력부(4)(5)의 출력신호를 접지연결 구동부(6)가 조합한 후 접지 선택 연결부(7)를 제어하여 전원라인(A)(B)의 중점의 가상접지 또는 전원라인(A)(B)을 가상 접지점(1)에 선택적으로 연결함과 아울러 접지검출/구동 제어부(8)를 제어하여 제1검출부(2) 및 제2검출부(3)가 동작되지 않고 접지연결 구동부(6)가 동작하게 동작전원을 공급하게 된다.As described above, the detection signal output units 4 and 5 respectively shape and output detection signals output by the first and second detection units 2 and 3 according to the ground of the power supply lines A and B. After the ground connection driver 6 combines the output signals of the signal output units 4 and 5, the ground select connection unit 7 is controlled to control the virtual ground or the power line A of the midpoint of the power lines A and B. ) B is selectively connected to the virtual ground point 1, and the ground detection / driving control unit 8 is controlled so that the first detection unit 2 and the second detection unit 3 do not operate and the ground connection driving unit 6 ) To supply operating power.

이상에서 상세히 설명한 바와 같이 본 고안은 동작속도가 빠른 발광 다이오드 및 수광 트랜지스터를 사용하여 전원라인에서 접지점을 빠른 시간내에 찾음으로써 기기를 온하는 초기시간에 바로 기기를 접지시켜 안전사고를 미연에 방지할 수 있다.As described in detail above, the present invention finds a grounding point in a power line using a light emitting diode and a light receiving transistor with a fast operating speed, so that the device can be grounded immediately at the initial time of turning on the device to prevent safety accidents. Can be.

Claims (1)

교류전원(AC)이 인가되는 전원라인(A)(B)와 가상접지점(1)의 사이에 직렬로 연결되어 전원라인(A)(B)의 접지를 검출하는 제1검출부(2) 및 제2검출부(3)와, 상기 제1 및 제2검출부(2)(3)의 출력신호를 각기 정형, 출력하는 검출신호 출력부(4)(5)와, 상기 검출신호 출력부(4)(5)의 출력신호로 가상 접지점(1)에 접지의 연결을 구동하는 접지연결 구동부(6)와, 전원라인(A)(B)의 중점의 가상접지를 만들고 상기 접지연결 구동부(6)의 구동에 따라 전원라인(A)(B) 또는 가상접지를 상기 가상 접지점(1)에 선택적으로 연결하는 접지선택 연결부(7)와, 상기 제1검출부(2) 및 제2검출부(3)의 동작을 제어함과 아울러 접지연결 구동부(6)가 동작하게 하는 접지검출/구동 제어부(8)를 구비한 접지 검출장치에 있어서, 상기 제1 및 제2검출부(2)(3)는, 전원라인(A)(B)과 접지검출/구동 제어부(8)의 사이에 직렬로 연결되어 접지검출/구동 제어부(8)의 제어에 다라 선택적으로 동작하는 발광 다이오드(PD1)(PD2)와, 상기 발광 다이오드(PD1)(PD2)의 출력광을 각기 수광하여 상기 제1 및 제2검출부(2)(3)에 검출신호로 입력하는 수광 트랜지스터(PT1)(PT2)로 구성함을 특징으로 하는 접지 검출장치.A first detection unit 2 and a first connection unit connected in series between the power supply line A and the virtual ground point 1 to which the AC power source AC is applied to detect the ground of the power supply line A and B; 2 detection unit 3, detection signal output unit 4 and 5 for shaping and outputting the output signals of the first and second detection units 2 and 3, respectively, and the detection signal output unit 4 ( The ground connection driver 6 for driving the connection of the ground to the virtual ground point 1 with the output signal of 5) and the virtual ground of the midpoint of the power lines A and B are made, and the ground connection driver 6 is driven. According to the ground selection connecting portion 7 for selectively connecting the power line (A) (B) or the virtual ground to the virtual ground point (1), the operation of the first detection unit 2 and the second detection unit 3 In the ground detection device having a ground detection / driving control unit 8 for controlling the ground connection driving unit 6 and operating the ground connection driving unit 6, the first and second detection units 2 and 3 are connected to a power supply line A. FIG. (B) and ground detection / drive control (8) Between the light emitting diodes PD 1 and PD 2 connected in series and selectively operating under the control of the ground detection / driving control unit 8 and the output light of the light emitting diodes PD 1 and PD 2 . And a light receiving transistor (PT 1 ) (PT 2 ) for receiving light and inputting the detected signal to the first and second detection units (2) (3), respectively.
KR2019940024612U 1994-09-24 1994-09-24 Earth detaching device Expired - Fee Related KR0112814Y1 (en)

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KR100332234B1 (en) * 1999-03-20 2002-04-12 이영민 An automatic ground apparatus for grounding power input ground line

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