KR200177536Y1 - Overload break and optimum movement point fixing circuits of automatic switch of freight loading chest - Google Patents

Overload break and optimum movement point fixing circuits of automatic switch of freight loading chest Download PDF

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Publication number
KR200177536Y1
KR200177536Y1 KR2019990021864U KR19990021864U KR200177536Y1 KR 200177536 Y1 KR200177536 Y1 KR 200177536Y1 KR 2019990021864 U KR2019990021864 U KR 2019990021864U KR 19990021864 U KR19990021864 U KR 19990021864U KR 200177536 Y1 KR200177536 Y1 KR 200177536Y1
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South Korea
Prior art keywords
cover plate
overload
motor
resistor
opening
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KR2019990021864U
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Korean (ko)
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배권일
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주식회사수양
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Publication of KR200177536Y1 publication Critical patent/KR200177536Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00—Securing or covering of load on vehicles
    • B60P7/02—Covering of load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

본 고안은 화물차 적재함의 덮개판이 동작할 때 모타에 가해지는 힘을 적절히 조절하여 덮개판구조물의 손상을 막고, 자동개폐기의 각종 스위치 및 출력릴레이, 모타까지의 배선 등에 무리한 부하(힘을)를 가하지 않게 하는 화물차 적재함 자동 개폐장치의 과부하 차단 및 적정동작점 설정회로에 관한 것이다.The present invention prevents damage of cover plate structure by appropriately adjusting the force applied to the motor when the cover plate of the truck loading box is operated, and does not apply excessive load (force) to various switches and output relays of the automatic switchgear and wiring to the motor. It is related to the overload interruption and the proper operating point setting circuit of the automatic loading and unloading of the truck loading box.

본 고안에 따르면, 덮개판의 열림과 닫힘의 동작시 모타에 가해지는 전류특성을 이용하여, 덮개판 동작중의 과부하 차단점과 덮개판 동작종료시의 차단점을 따로따로 설정하므로서 종료시 불필요한 힘을 가하지 않게 하였고 또한, 동작시 2곡의 각기 다른 멜로디가 발생되게 하여 사용자가 소리로서도 열림과 닫힘 동작을 구별할 수 있게 한 화물차 적재함 자동개폐장치의 과부하 차단 및 적정동작점 설정회로가 제공된다.According to the present invention, by using the current characteristics applied to the motor during the operation of opening and closing the cover plate, by setting the overload breaking point during the cover plate operation and the breaking point at the end of the cover plate operation separately, unnecessary force is not applied at the end. In addition, there is provided an overload blocking and proper operating point setting circuit of the truck loading and unloading automatic opening and closing device which allows the user to distinguish between the opening and closing operations as a sound by generating two different melodies during operation.

Description

화물차적재함 자동개폐장치의 과부하 차단 및 적정동작점 설정회로{Overload break and optimum movement point fixing circuits of automatic switch of freight loading chest}Overload break and optimum movement point fixing circuits of automatic switch of freight loading chest}

본 고안은 화물차 적재함의 덮개판이 동작할 때 모타에 가해지는 힘을 적절히 조절하여 덮개판구조물의 손상을 막고, 자동개폐기의 각종 스위치 및 출력릴레이, 모타까지의 배선 등에 무리한 부하(힘을)를 가하지 않게 하는 화물차 적재함 자동 개폐장치의 과부하 차단 및 적정동작점 설정회로에 관한 것이다.The present invention prevents damage of cover plate structure by appropriately adjusting the force applied to the motor when the cover plate of the truck loading box is operated, and does not apply excessive load (force) to various switches and output relays of the automatic switchgear and wiring to the motor. It is related to the overload interruption and the proper operating point setting circuit of the automatic loading and unloading of the truck loading box.

종래의 화물차 적재함 자동개폐장치는 적재물의 과적재에 의해 구동모터에 흐르는 과전류를 전류감지기를 통해 전류 검출을 하고 그 검출된 값을 전기법칙에 의해 전압값으로 환산시켜 정상상태일 때의 전압값과 비교기로서 검출된 값을 트랜지스터 소자에 의해 전자개폐기의 접점을 온ㆍ오프시키므로서 모터로 흐르는 전류를 제어시켜 주는 단순한 과부하차단회로만이 내장되어 있으므로 덮개판 동작시 발생하는 과부하를 차단하여 모터의 소손을 방지하는 효과는 있으나 이는 처음부터 끝까지 동일한 은 양의 힘을 모타에 가함으로서, 덮개판 구조물과 자동개폐장치의 각종 부품이 손상, 망실되어 잦은 고장을 일으키는 등 여러가지의 폐단이 있었다.Conventional truck loading and unloading device automatically detects the overcurrent flowing in the driving motor by the current sensor by overloading the load and converts the detected value into a voltage value by the electric law. As the built-in overload cut-off circuit controls the current flowing to the motor by turning on / off the contact of the electronic switch by the transistor element, the overload generated during the operation of the cover plate is cut off to prevent damage to the motor. This effect is prevented, but by applying the same amount of force from the beginning to the end of the motor, there are various closures such as damage to the cover plate structure and the various parts of the automatic opening and closing device, causing frequent failures.

본 고안의 목적은 이와같은 종래의 폐단을 해소하고자 한 데 있는 것으로, 덮개판의 열림과 닫힘의 동작시 모타에 가해지는 전류특성을 이용하여, 덮개판 동작중의 과부하 차단점과 덮개판 동작종료시의 차단점을 따로따로 설정하므로서 종료시 불필요한 힘을 가하지 않게 하였고 또한, 동작시 2곡의 각기 다른 멜로디가 발생되게 하여 사용자가 소리로서도 열림과 닫힘 동작을 구별할 수 있게 한 화물차 적재함 자동개폐장치의 과부하 차단 및 적정동작점 설정회로를 제공코자 한 데 있다.The purpose of the present invention is to solve such a conventional closed end, by using the current characteristics applied to the motor during the operation of the opening and closing of the cover plate, when the overload break point and cover plate operation termination during the cover plate operation By separately setting the break point of the load, unnecessary force is not applied at the end, and two different melodies are generated during operation, so that the user can distinguish the opening and closing operations with sound. The purpose is to provide an interruption and proper operating point setting circuit.

도 1 는 본 고안의 회로도1 is a circuit diagram of the present invention

도 2 는 덮개판이 닫힌 상태에서 열림 작동 설명도2 is an explanatory view of the opening operation with the cover plate closed;

도 3 은 덮개판이 열린 상태에서 닫힘 작동 설명도3 is an explanatory view of a closed operation in a state where the cover plate is opened;

도 4 는 덮개판의 열린 상태의 전류 특성도4 is a current characteristic diagram of an open state of a cover plate;

도 5 는 덮개판의 닫힌 상태의 전류 특성도5 is a current characteristic diagram of a closed state of the cover plate;

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

1 : 적정 오프점 설정회로 2 : 과부하 검출회로1: Proper off point setting circuit 2: Overload detection circuit

3 : 출력 릴레이 구동회로 4 : 개폐전환부3: output relay drive circuit 4: switching switch

5 : 동작 상태 표시장치 6 : 램프 구동회로5 operation state display device 6 lamp driving circuit

7 : 멜로디 회로7: melody circuit

저항(R1,R2),가변저항(VR1)및 전류 감지센서(CT)와 저항(R11)을 비교기(U1)에 연결하고 그 출력단에 저항(R3,R4), 콘덴서(C1)및 저항(R5,R6)으로 비교기(U2)에 연결하여 구성된 적정 오프점 설정회로(1)와, 이의 출력단에 저항(R9,R10), 가변저항(VR2)및 저항(R12)를 비교기(U3)에 연결하고 저항(R13,R15)및 콘덴서(C2), 저항(R14,R16)을 비교기(U4)에 연결하여 구성된 과부하 검출회로(2)와, 그 출력부에 저항(R17,R18), 트랜지스트(Q1),및 다이오드(D1), 릴레이(RL1)의 조합으로 구성된 출력 릴레이 구동회로(3)와, 릴레이(RL1)의 접점부에 개폐 전환스위치(SW3)와 모터를 연결하여서 된 덮개의 개폐전환부(4)와, 비상 정지 스위치(SW1), 저항(R19) , 발광 다이오드(LED1)이 직렬로 연결되어 구성된 동작 상태 표시장치(5)와, 비상 정지 스위치(SW1)의 접점부에 다이오드(D4,D5), 릴레이(RL2), 램프(L), 스타트 스위치(SW2)의 조합으로 된 램프 구동회로(6)와, 개폐 전환스위치(SW3)의 중립단자에 다이오드(D2,D4), 저항(R20,R21,R22), 콘덴서(C3), 트랜지스터(Q2), 멜로디 집적회로(U6)및 다이오드(D3,D5), 저항(R23,R24,R25), 콘덴서(C4), 트랜지스터(Q3), 멜로디 집적회로(U5)와 저항(R26)및 피에조(PZ)를 연결하여 구성된 멜로디 회로(7)를 조합하여 구성됨을 특징으로 하는 것이다.Resistor (R1, R2), variable resistor (VR1) and current sensing sensor (CT) and resistor (R11) are connected to comparator (U1) and at the output stages of resistors (R3, R4), capacitor (C1) and resistor (R5). A suitable off point setting circuit (1) configured by connecting to the comparator (U2) with R6, and connecting the resistors (R9, R10), the variable resistor (VR2) and the resistor (R12) to the comparator (U3) at the output terminal thereof. An overload detection circuit 2 formed by connecting the resistors R13 and R15, the capacitor C2 and the resistors R14 and R16 to the comparator U4, and the resistors R17 and R18 and the transistor Q1 at the output thereof. And an output relay driving circuit 3 composed of a combination of a diode D1 and a relay RL1, and an opening / closing switching part of a cover formed by connecting an opening / closing switch SW3 and a motor to a contact portion of the relay RL1. (4), the operation state display device 5 formed by connecting the emergency stop switch SW1, the resistor R19, and the light emitting diode LED1 in series, and the diode D4 at the contact portion of the emergency stop switch SW1. D5), relay (RL2), lamp (L), start Lamp driving circuit 6 composed of a combination of switches SW2 and a diode D2, D4, resistors R20, R21, R22, capacitors C3, and transistors Q2 at the neutral terminals of the switching switch SW3. ), Melody integrated circuit (U6) and diodes (D3, D5), resistors (R23, R24, R25), capacitors (C4), transistors (Q3), melody integrated circuits (U5) and resistors (R26) and piezo (PZ) It is characterized in that it is configured by combining the melody circuit (7) configured by connecting).

도면중 미설명 부호 8은 전압 안정화 회로이다.In the figure, reference numeral 8 denotes a voltage stabilization circuit.

이와같이 된 본 고안은 모타의 한쪽 단자를 전류센서(CT)에 연결하여, 모터로 흐르는 전류를 양을 센서의 양단에 인가되는 비례전압으로 부하의 크기를 조절하여 화물차 덮개함의 개폐를 할 수 있게 한 것인데 이를 첨부도면에 의해 상세히설명하면 다음과 같다.The present invention is connected to one terminal of the motor to the current sensor (CT), to adjust the size of the load to the proportional voltage applied to the both ends of the motor current to the motor to enable the opening and closing of the van lid. It will be described in detail by the accompanying drawings as follows.

덮개의 개폐 전환부(4)를 열림 또는 닫힘의 위치로 하고, 램프 구동회로 (6)의 스타트 스위치(SW2)를 누르면 전압 안정화 전원회로(8)에 전원이 투입되어 과부하 검출회로(2)의 비교기(U4)의 출력이 정출력이 되므로서 저항(R17), 트랜지스터(Q1) 릴레이(RL1), 개폐 전환스위치(SW3)를 통하여 모터에 전원이 공급되고 동작을 개시한다.When the opening / closing switching section 4 of the cover is in the open or closed position and the start switch SW2 of the lamp driving circuit 6 is pressed, power is supplied to the voltage stabilizing power supply circuit 8 so that the overload detection circuit 2 Since the output of the comparator U4 becomes the positive output, power is supplied to the motor through the resistor R17, the transistor Q1 relay RL1, and the switching switch SW3 to start the operation.

이때, 적정 오프점 설정회로(1)는 비교기(U1)에 전류센서(CT)의 양단전압과, 저항(R1,R2)및 가변저항(VR1)으로 분배된 전압이 각각 입력되어 그 출력값이 비교기(U2)에 의해 안정화되어 가변저항(VR2)의 설정값을 상승시키고, 그 값이 과부하 검출회로(2)의 설정값이 되어 모터에 흐르는 전류는 도 4의 ①,② 내지 도 5의 ①,②,③에 도시된 바와같이 적정 동작 오프점보다 높은 전류가 흐르게 되므로서 덮개의 개폐를 하는 모터는 계속 동작하게 되며, 도 2의 ②,③지 도 3의 ③,④에 도시된 바와같이 덮개의 개폐 도중 덮개판의 자중및 지구의 중력에 의해 모터로 흐르는 전류가 적정 동작 오프점이하로 떨어지게 되면 비교기(U2)의 출력이 오프되어 그 값은 저항(R7)을 통해 과부하 차단회로(2)의 저항(R9,R10)및 가변저항 (VR2)에 의해 설정된 값을 낮추게 되고, 이 값이 모터로 흐르는 최저 전류치(비례전압)가 되어 덮개의 개폐는 계속 진행이 되며, 덮개의 개폐가 최종점에 도달하게 되면 화물차 덮개의 구동 특성상 도 4의 ④ 및 도 5의 ④에 도시된 바와같이 급격한 전류가 흐르게 되므로서 전류센서(CT)양단의 비례전압이 급상승하고, 상승된 전압은 저항(R11)과 저항(R12)를 통하여 적정 오프점 설정회로(1)의 비교기(U1)과 과부하 검출회로(2)의 비교기(U3)에 동시에 각각 입력되지만 적정 오프점 설정회로(1)의 비교기(U2)의 출력은 저항(R3)및 콘덴서(C1)에 의해 비교기(U2)의 입력전압이 서서히 상승되어 비교기(U2)의 출력이 변하기 전에 과부하 검출회로(2)의 저항(R12)을 통한 비교기(U3)의 입력은 즉시 상승함에 따라 비교기(U3)의 출력과 비교기(U4)의 출력이 오프되며, 동시에 출력 릴레이 구동회로(3)의 트랜지스터(Q1)가 오프되고, 릴레이(RL1)의 접점이 차단되므로서 모터에는 전류가 흐르지 않게 되어 덮개의 개폐동작을 정지시키게 된다At this time, the proper off-point setting circuit 1 inputs the voltages of both ends of the current sensor CT and the voltages divided by the resistors R1, R2 and the variable resistor VR1 to the comparator U1, respectively, and outputs the comparator. Stabilized by U2 to raise the set value of the variable resistor VR2, and the value becomes the set value of the overload detection circuit 2, so that the current flowing through the motor is 1, 2 to 5 in FIG. As shown in (2) and (3), a current higher than the proper operating off point flows, so that the motor to open and close the cover continues to operate. As shown in (2) and (3) of FIG. When the current flowing to the motor falls below the proper operation off point due to the self-weight of the cover plate and the earth's gravity during the opening and closing of the door, the output of the comparator U2 is turned off and the value of the resistance of the overload cut-off circuit 2 through the resistor R7. The value set by (R9, R10) and variable resistor (VR2) is lowered. Opening and closing of the cover continues as the minimum current value (proportional voltage) flowing through the site, and when the opening and closing of the cover reaches the end point, as shown in ④ of FIG. 4 and ④ of FIG. As the flow rate increases, the proportional voltage across the current sensor CT rapidly rises, and the increased voltage is obtained through the comparator U1 and the overload detection circuit 1 of the appropriate off point setting circuit 1 through the resistors R11 and R12. The comparator U2 is simultaneously input to the comparator U3 of 2), but the output of the comparator U2 of the appropriate off-point setting circuit 1 is gradually increased by the resistor R3 and the condenser C1. As the input of the comparator U3 through the resistor R12 of the overload detection circuit 2 immediately rises before the output of the comparator U2 changes, the output of the comparator U3 and the output of the comparator U4 are turned off. At the same time, the transistor Q1 of the output relay driving circuit 3 is turned off, Since the contact of the relay RL1 is blocked, no current flows to the motor, thereby stopping the opening and closing operation of the cover.

이때 모터의 최초 동작전류는 도 4 내지 도 5 에 도시된 바와같이 적정 동작 오프점보다 높고, 과부하 차단점보다 낮도록 가변저항(VR1,VR2)으로 조정하여 설정되어 있으며, 비교기(U2)의 출력과 가변저항(VR2)의 설정값이 높아 졌을 때가 과부하 차단점이 되도록 하는 데 이는 덮개판의 고장 이나 급격한 외부의 충격에 대비하여 정상동작 전류치보다 약간의 전류량을 더하여 설정한다.At this time, the initial operating current of the motor is set by adjusting the variable resistors VR1 and VR2 so as to be higher than the proper operating off point and lower than the overload breaking point as shown in FIGS. 4 to 5, and the output of the comparator U2. When the setting value of the variable resistor (VR2) is increased, the overload cutoff point is set so that a slight current amount is added to the normal operating current value in case of a cover plate failure or a sudden external shock.

그리고 동작상태 표시장치(5)의 발광 다이오드(LED1)는 화물차 덮개의 개폐가 진행중임을 표시하고, 비상정지 스위치(SW1)은 덮개판 동작이 정상작동 하지 않을때 시스템의 전원을 차단하는 비상시 작동하는 안전 스위치이며, 램프 구동회로( 6)는 릴레이(RL2)를 통해 램프(L)을 구동시켜 야간 작업시 덮개판 주변을 밝게 하므로서 작업환경을 개선할 수 있게 된다.The light emitting diode LED1 of the operation state display device 5 indicates that the opening and closing of the van cover is in progress, and the emergency stop switch SW1 operates in an emergency to cut off the power of the system when the cover plate is not normally operated. The safety switch, and the lamp driving circuit 6 drives the lamp L through the relay RL2 to brighten the periphery of the cover plate at night, thereby improving the working environment.

또한 덮개의 개폐 전환부(4)의 중립단자에 각각 연결되어 덮개의 열고 닫음에 따라 서로 다른음을 내게하는 멜로디 회로(7)는 다이오드(D2,D3)을 통하여 (+)전압을 받는 쪽의 멜로디 집적회로(U5 또는 U6)가 동작하여 저항(R26) 및 피에조( PZ)를 통해 덮개를 열고, 닫을 때 각기 다른 멜로디 소리가 울려나오게 되므로 사용자가 멀리 떨어져 있어도 화물차 덮개의 열고, 닫음을 쉽게 알 수 있게 되는 것이다.In addition, the melody circuit 7 which is connected to the neutral terminal of the opening and closing switching part 4 of the cover to give a different sound as the cover is opened and closed is the side of receiving the positive voltage through the diodes D2 and D3. Melody integrated circuit (U5 or U6) operates to open and close the cover through resistor (R26) and piezo (PZ), and different melody sounds are generated when closing, so you can easily know the opening and closing of the truck cover even when the user is far away. It will be possible.

본 고안에 의하면, 정상동작시의 모타 전류특성곡선을 이용하여, 무리한 힘을 가하지 아니하고 적정 오프점을 찾아 동작함으로 자동개폐장치와 덮개판구조물의 손상 및 고장을 현저히 줄일 수 있으며, 2곡의 멜로디 소리로서 사용자가 닫힘과 열림을 구별하여 동작중인 상태를 정확히 알 수 있게 되는 효과가 있다.According to the present invention, by using the motor current characteristic curve in the normal operation, by finding the appropriate off point without applying excessive force, it can significantly reduce the damage and failure of the automatic switchgear and the cover plate structure, two melody As a sound, the user can distinguish between the closed and the open, so that the user can know exactly the operating state.

Claims (1)

화물차덮개판 동작시 모타전류 특성표(도 3)를 이용한 전류감지Sensor 양단의 비례전압을 저항R11를 통한 값과 VR1(가변저항)의 설정값을 비교하는 적정 OFF점 설정회로와, 저항R12를 통한 값과 VR2의 설정된 값을 비교하는 과부하 차단회로로 구성하고, 두 회로의 결합된 출력이 저항(R17)을 통해 트랜지스터(Q1)와 릴레이(RL1)를 동작시켜 개폐 전환스위치(SW3)로서 모터를 구동하며, 다이오드(D2,D3)를 통하여 2곡의 멜로디소리를 닫힘소리와 열림소리로 구별하고, 발광다이오드 (LED1)는 릴레이(RL1)의 출력을 받아 동작중임을 나타내는 동작 상태 표시장치, 스타트 스윗치(SW2)와 릴레이(RL2) 및 램프(L)로 구성된 램프 구동회로로 조합되어 이루어진 화물차 적재함 자동개폐장치의 과부하 차단 및 적정 동작점 설정회로.Proper OFF point setting circuit for comparing the proportional voltage across the current sensing sensor using the resistor R11 and the setting value of the VR1 (variable resistor) using the motor current characteristic table (Fig. 3) during operation of the van cover, and the resistor R12 It consists of an overload cut-off circuit that compares the value through and the set value of VR2, and the combined output of the two circuits operates the transistor Q1 and the relay RL1 through the resistor R17 to open / close the switch SW3. Driving, and distinguishes the two melody sounds into the closing sound and the opening sound through the diodes D2 and D3, and the light emitting diode LED1 receives an output of the relay RL1 and indicates an operation state indicating the device. Overload interruption and proper operating point setting circuit of the truck loading and unloading automatic switchgear composed of a lamp driving circuit composed of a start switch (SW2), a relay (RL2) and a lamp (L).
KR2019990021864U 1999-10-12 1999-10-12 Overload break and optimum movement point fixing circuits of automatic switch of freight loading chest KR200177536Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180128575A (en) 2017-05-24 2018-12-04 주식회사 쥬테크 Automatic Open and Shut Apparatus of Lorry Loop Cover
KR20230070805A (en) 2021-11-15 2023-05-23 주식회사 화인특장 Vehicle cover opening/closing control apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180128575A (en) 2017-05-24 2018-12-04 주식회사 쥬테크 Automatic Open and Shut Apparatus of Lorry Loop Cover
KR20230070805A (en) 2021-11-15 2023-05-23 주식회사 화인특장 Vehicle cover opening/closing control apparatus

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