WO2015178516A1 - Power control device for construction machine - Google Patents

Power control device for construction machine Download PDF

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Publication number
WO2015178516A1
WO2015178516A1 PCT/KR2014/004476 KR2014004476W WO2015178516A1 WO 2015178516 A1 WO2015178516 A1 WO 2015178516A1 KR 2014004476 W KR2014004476 W KR 2014004476W WO 2015178516 A1 WO2015178516 A1 WO 2015178516A1
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WO
WIPO (PCT)
Prior art keywords
switch
construction machine
battery
control unit
power
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Application number
PCT/KR2014/004476
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French (fr)
Korean (ko)
Inventor
박중호
민경모
Original Assignee
볼보 컨스트럭션 이큅먼트 에이비
박중호
민경모
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Application filed by 볼보 컨스트럭션 이큅먼트 에이비, 박중호, 민경모 filed Critical 볼보 컨스트럭션 이큅먼트 에이비
Priority to PCT/KR2014/004476 priority Critical patent/WO2015178516A1/en
Publication of WO2015178516A1 publication Critical patent/WO2015178516A1/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/24—Safety devices, e.g. for preventing overload
    • 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
    • H02H3/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present invention relates to a power supply control device for construction machinery, and more particularly, when the construction machine is in a dangerous situation due to the start of the construction machine is not turned off or a fire, by cutting off not only the engine power but also the battery at the same time,
  • the present invention relates to a power supply control device for a construction machine that can completely stop starting.
  • an emergency stop switch used to urgently stop the operation of all the systems or the equipment in an emergency or emergency in addition to the main switch for switching the power on and off. Equipped with.
  • the operator detects a risk of electrical damage or a malfunction due to an overload of the mechanical equipment or determines that there is a serious problem in operation, the operator can operate the emergency stop switch to quickly stop the operation of the mechanical equipment to protect the mechanical equipment.
  • Such an emergency stop switch is to be installed adjacent to the operator operating the mechanical equipment because the operator must be able to operate quickly and easily.
  • an emergency stop switch is installed and operated in construction machinery such as an excavator.
  • the emergency stop switch installed in the construction machinery was used to simply turn off the power of the engine electronic control unit (ECU) that controls the engine operation.
  • ECU engine electronic control unit
  • the engine ECU power is cut off and the engine is stopped, but the battery, which is one of the power sources, is not cut off, and thus the risk of short remains as it is. Will be.
  • the main reason why the battery could not be cut off is that all battery cut-off switches have been mechanical until now, and the battery could not be cut off by the electric circuit.
  • the present invention has been made to solve the problems of the prior art as described above, the object of the present invention is when the construction machine is in a dangerous situation due to the start of the construction machine is not turned off or fire, as well as the engine power supply battery By simultaneously cutting off, it is to provide a power supply control device for construction machinery that can completely stop the start of the construction machinery.
  • the present invention the first electronic control unit for controlling the engine drive; A first switch electrically connected to the first electronic controller to cut off power applied to the first electronic controller; And a second switch electrically connected between the first electronic control unit and the battery and installed on a line connecting the first electronic control unit and the first switch to turn on / off the battery.
  • the second switch is linked to the operation of the first switch provides a power supply control device for a construction machine, characterized in that for cutting off the battery (cut off).
  • the electronic device may further include a second electronic control unit electrically connected to the second switch to control the second switch.
  • the second electronic controller may be electrically connected to the second switch through the first switch.
  • a third switch electrically connected to the second electronic controller to apply a signal for turning on / off the second switch to the second electronic controller.
  • the electronic device may further include a fourth switch electrically connected to the second electronic controller to apply a driving signal to the second electronic controller.
  • the construction machine by electrically connecting the EBDS (electrical battery disconnect switch) for turning the battery on and off with an electrical signal between the battery and the emergency stop switch, for example, the construction machine is not started or due to fire, etc. Is in a dangerous situation, that is, when an emergency situation occurs in the construction machine, by operating the emergency stop switch to cut off not only the engine power but also the battery at the same time, it is possible to completely stop the start of the construction machine.
  • EBDS electrical battery disconnect switch
  • FIG. 1 is a block diagram showing a power control device for a construction machine according to an embodiment of the present invention.
  • the construction machine power control device 100 is installed in a construction machine, such as an excavator, for example, construction machinery due to the start of the construction machine is not turned off or fire, etc. Is a control device that cuts off the power applied to operate the construction machine so that the start of the construction machine is completely stopped when an emergency situation occurs in the construction machine, such as when a dangerous situation.
  • the construction machine power control device 100 is formed to include a first electronic control unit 110, the first switch 120 and the second switch 130.
  • the first electronic controller 110 is provided as an engine ECU (electronic control unit) for controlling the engine driving of the construction machine.
  • the first electronic control unit 110 is operated when power is applied to drive the engine or stop the engine.
  • the first switch 120 is electrically connected to the first electronic controller 110.
  • the first switch 120 is electrically connected to the first electronic controller 110 through the second switch 130.
  • the first switch 120 is provided as an emergency stop switch. Accordingly, when an emergency situation occurs in the construction machine, the driver operates the first switch 120 to stop the engine. That is, when the engine is driven, the terminal a and the terminal A of the first switch 120 are connected, but when the first switch 120 is operated by the driver's operation and the terminal a and the terminal A are separated, The power applied to the electronic controller 110 is cut off to stop the engine.
  • the second switch 130 is electrically connected between the first electronic controller 110 and the battery 10.
  • the second switch 130 is installed on a line connecting the first electronic controller 110 and the first switch 120.
  • the second switch 130 is provided as an electric battery disconnect switch (EBDS) for electrically turning on / off the battery 10. Accordingly, when the power supply to the first electronic controller 110 is cut off through the driver's first switch 120 operation, that is, when the first switch 120 is operated, the first switch 120 is electrically connected to the first switch 120.
  • the second switch 130 which is connected to the first switch 120 is linked to the operation of the first switch 120 to cut off the battery 10.
  • the battery 10 may be blocked at the same time through the first switch 120 which is an emergency stop switch and the second switch 130 interlocked with the operation thereof. This double shut-off makes it possible to stop the construction machine immediately and completely.
  • the battery 10 is circuitically separated through the second switch 130 when the first switch 120 is operated, thereby reducing a risk of short generation.
  • the second switch 130 is controlled by the on / off switching operation by the second electronic controller 140 electrically connected thereto via the first switch 120. That is, in normal construction equipment operation, the second switch 130 controls the on / off switching operation by the second electronic control unit 140 to transfer the battery 10 to the power control device 100. Connect or disconnect circuits.
  • the second switch 130 is interlocked with the operation of the first switch 120, that is, switched to the off state when the first switch 120 is operated so that the battery
  • the circuit 10 is circuit-separated from the power supply control device 100.
  • the second switch 130 serves to cut off the power applied to the power control device 100 from the battery 10.
  • the second electronic controller 140 detects an electrical signal applied from the third switch 150 electrically connected thereto, that is, a signal for turning on / off the second switch 130.
  • the on / off switching operation of the second switch 130 is controlled based on the detected signal.
  • the third switch 150 is provided as a main switch.
  • the second electronic controller 140 turns on the second switch 130, and accordingly, the second switch 130.
  • the power of the battery 10 is applied to the first electronic controller 110 from the battery 10.
  • the second electronic controller 140 turns off the second switch 130, and thus, the second switch.
  • the battery 10 electrically connected to the 130 is separated from the power control device 100 by a circuit, and as a result, the power applied from the battery 10 to the first electronic controller 110 is cut off. Accordingly, engine driving controlled by the first electronic controller 110 is stopped.
  • the electrical circuit connection and disconnection of the battery 10 through the on / off switching operation of the third switch 150 may operate or stop the construction machine during normal construction machine operation. Under the circumstances. On the contrary, in case of an emergency situation in which the engine of the construction machine needs to be stopped immediately and completely, the switching operation of the first switch 120 which is an emergency stop switch and the second switch 130 which is an EBDS provided to be linked to the operation thereof. Through the electrical circuit separation of the battery 10 is made.
  • the fourth switch 160 is installed on a line connecting the second switch 130 and the first electronic controller 110.
  • the fourth switch 160 is provided as a start switch.
  • the fourth switch 160 is turned on by the driver's operation, power generated from the battery 10 is applied to the first electronic controller 110, and accordingly, the first electronic controller 110 is applied. The engine controlled by) is driven.
  • the fourth switch 160 is electrically connected to the second electronic controller 140. Accordingly, when the fourth switch 160 is turned on by the driver's operation, the battery 10 power is applied to the first electronic controller 110, and the second electronic controller 140 is applied to the second electronic controller 140. Driving signals such as key on and cranking signals are applied. As a result, the corresponding part of the construction machine controlled by the second electronic controller 140 is driven.
  • a fuse 170 may be installed on the line electrically connecting the second switch 130 and the fourth switch 160 to cut off the overcurrent.
  • the second electronic controller 140 turns on the second switch 130 provided with the EBDS, and thus, the battery 10 Is electrically connected to the power supply control device 100. Then, when the driver turns on the fourth switch 160, which is a start switch, the construction machine is keyed on and cranked to be in an operable state.
  • the fourth switch 160 which is the start switch is turned off for the operation or the end of the work of the construction machine, for example, the start does not turn off or a fire occurs in the construction machine.
  • the emergency switch such as an emergency stop switch
  • the power of the first electronic controller 110 is cut off and at the same time the second switch 130 of the EBDS is turned off.
  • the battery 10 is cut off and separated into circuits.
  • the power supply control apparatus 100 for a construction machine is an EBDS that is electrically connected to the first switch 120, which is an emergency stop switch, and an operation thereof.
  • the first switch 120 which is an emergency stop switch, and an operation thereof.
  • the engine power applied to the first electronic controller 110 is cut off, and the battery 10 is also electrically disconnected to completely cut off the power applied from the battery 10. Can be.
  • the start of the construction machine can be stopped immediately and completely, and the risk of short circuit occurring when the battery 10 is not cut off can be reduced.

Abstract

The present invention relates to a power control device for a construction machine and, more specifically, to a power control device for a construction machine which can completely stop activation of the construction machine by simultaneously shutting off not only the power of an engine thereof but also a battery thereof when the activation of the construction machine is not turned off or the construction machine is in a dangerous situation due to fire, etc. To this end, the present invention provides a power control device for a construction machine, the device comprising: a first electronic control unit for controlling drive of an engine; a first switch, electrically connected to the first electronic control unit, for shutting off power applied to the first electronic control unit; and a second switch, electrically connected between the first electronic control unit and a battery and installed on a line connecting the first electronic control unit and the first switch, for turning on/off the battery, wherein the second switch is interlocked with the operation of the first switch, thereby cutting off the battery.

Description

건설기계용 전원 제어장치Power Control Unit for Construction Machinery
본 발명은 건설기계용 전원 제어장치에 관한 것으로서 더욱 상세하게는 건설기계의 시동이 안 꺼지거나 화재 등으로 인해 건설기계가 위험한 상황에 처한 경우, 엔진 전원뿐만 아니라 배터리까지 동시에 차단시킴으로써, 건설기계의 시동을 완전하게 정지시킬 수 있는 건설기계용 전원 제어장치에 관한 것이다.The present invention relates to a power supply control device for construction machinery, and more particularly, when the construction machine is in a dangerous situation due to the start of the construction machine is not turned off or a fire, by cutting off not only the engine power but also the battery at the same time, The present invention relates to a power supply control device for a construction machine that can completely stop starting.
통상적으로, 전력을 동력으로 하여 가동되는 기계 설비는 전원을 개폐하는 메인 스위치 이외에도 긴급을 요하거나 비상 사태에서 모든 시스템의 가동이나 해당 설비의 가동을 긴급히 정지시키는데 사용되는 비상정지 스위치(emergency stop switch)를 구비하고 있다. 작업자는 기계 설비의 과부하로 인한 전기적 소손 우려 혹은 고장을 발견하거나 운용상 심각한 문제가 있다고 판단될 때, 이 비상정지 스위치를 조작함으로써, 기계 설비의 가동을 신속히 중단시켜 기계 설비를 보호하게 된다. 이러한 비상정지 스위치는 작업자가 신속하고 용이하게 조작할 수 있어야 하므로, 기계 설비를 운용하는 작업자에 인접하게 설치된다.Typically, mechanical equipment operated by electric power is an emergency stop switch used to urgently stop the operation of all the systems or the equipment in an emergency or emergency in addition to the main switch for switching the power on and off. Equipped with. When the operator detects a risk of electrical damage or a malfunction due to an overload of the mechanical equipment or determines that there is a serious problem in operation, the operator can operate the emergency stop switch to quickly stop the operation of the mechanical equipment to protect the mechanical equipment. Such an emergency stop switch is to be installed adjacent to the operator operating the mechanical equipment because the operator must be able to operate quickly and easily.
한편, 이러한 비상정지 스위치는 굴삭기와 같은 건설기계에도 설치되어 운용되고 있다. 하지만, 건설기계에 설치되어 있는 비상정지 스위치는 단순히 엔진 구동을 제어하는 엔진 ECU(electronic control unit)의 전원을 차단하는 용도로 사용되었다. 이에 따라, 건설기계에 문제가 발생된 경우, 비상정지 스위치를 조작하면, 엔진 ECU 전원이 차단되어 엔진은 멈추게 되지만, 전원 공급원 중 하나인 배터리는 차단되지 않아서, 쇼트(short)의 위험은 그대로 남아 있게 된다. 이와 같이, 배터리를 차단할 수 없었던 주된 이유는 현재까지 모든 배터리 차단 스위치가 기계식으로 되어 있어, 전기 회로적으로는 배터리를 차단할 수 없었기 때문이다. 즉, 비상 상황 발생 시에는 비상정지 스위치를 조작하는 한편, 배터리 차단 스위치를 별도로 조작하여 배터리를 차단시켜야만 했다. 예를 들어, 기존의 비상정지 스위치로 엔진 ECU 전원을 차단하려고 할 경우, 배터리를 차단시키지 않은 상태에서는 비상정지 스위치 뒷단에서 다른 전원 라인과 쇼트 발생의 위험이 있고, 만약, 쇼트가 발생되면, 비상정지 스위치를 작동하더라도 엔진 ECU 전원이 살아있어, 엔진을 멈출 수 없는 상황에 처하게 된다.Meanwhile, such an emergency stop switch is installed and operated in construction machinery such as an excavator. However, the emergency stop switch installed in the construction machinery was used to simply turn off the power of the engine electronic control unit (ECU) that controls the engine operation. Accordingly, when a problem occurs in the construction machine, when the emergency stop switch is operated, the engine ECU power is cut off and the engine is stopped, but the battery, which is one of the power sources, is not cut off, and thus the risk of short remains as it is. Will be. As such, the main reason why the battery could not be cut off is that all battery cut-off switches have been mechanical until now, and the battery could not be cut off by the electric circuit. That is, in case of emergency, the battery had to be shut off by operating the emergency stop switch and operating the battery disconnect switch separately. For example, if you try to cut off the engine ECU power with the existing emergency stop switch, there is a risk of short circuit with other power lines behind the emergency stop switch without disconnecting the battery. Even if the stop switch is activated, the engine ECU power is alive and the engine cannot be stopped.
본 발명은 상술한 바와 같은 종래기술의 문제점을 해결하기 위해 안출된 것으로서, 본 발명의 목적은 건설기계의 시동이 안 꺼지거나 화재 등으로 인해 건설기계가 위험한 상황에 처한 경우, 엔진 전원뿐만 아니라 배터리까지 동시에 차단시킴으로써, 건설기계의 시동을 완전하게 정지시킬 수 있는 건설기계용 전원 제어장치를 제공하는 것이다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is when the construction machine is in a dangerous situation due to the start of the construction machine is not turned off or fire, as well as the engine power supply battery By simultaneously cutting off, it is to provide a power supply control device for construction machinery that can completely stop the start of the construction machinery.
이를 위해, 본 발명은, 엔진 구동을 제어하는 제1 전자 제어부; 상기 제1 전자 제어부와 전기적으로 연결되어, 상기 제1 전자 제어부로 인가되는 전원을 차단하는 제1 스위치; 및 상기 제1 전자 제어부와 배터리 사이에 전기적으로 연결되고, 상기 제1 전자 제어부와 상기 제1 스위치를 연결하는 라인 상에 설치되어, 상기 배터리를 온/오프시키는 제2 스위치를 포함하고, 상기 제2 스위치는 상기 제1 스위치의 작동에 연동되어 상기 배터리를 컷 오프(cut off)시키는 것을 특징으로 하는 건설기계용 전원 제어장치를 제공한다.To this end, the present invention, the first electronic control unit for controlling the engine drive; A first switch electrically connected to the first electronic controller to cut off power applied to the first electronic controller; And a second switch electrically connected between the first electronic control unit and the battery and installed on a line connecting the first electronic control unit and the first switch to turn on / off the battery. The second switch is linked to the operation of the first switch provides a power supply control device for a construction machine, characterized in that for cutting off the battery (cut off).
여기서, 상기 제2 스위치와 전기적으로 연결되어, 상기 제2 스위치를 제어하는 제2 전자 제어부를 더 포함할 수 있다.The electronic device may further include a second electronic control unit electrically connected to the second switch to control the second switch.
또한, 상기 제2 전자 제어부는 상기 제1 스위치를 매개로 상기 제2 스위치와 전기적으로 연결될 수 있다.In addition, the second electronic controller may be electrically connected to the second switch through the first switch.
그리고 상기 제2 전자 제어부와 전기적으로 연결되어, 상기 제2 전자 제어부에 상기 제2 스위치를 온/오프시키는 신호를 인가하는 제3 스위치를 더 포함할 수 있다.And a third switch electrically connected to the second electronic controller to apply a signal for turning on / off the second switch to the second electronic controller.
아울러, 상기 제2 전자 제어부에 전기적으로 연결되어, 상기 제2 전자 제어부에 구동 신호를 인가하는 제4 스위치를 더 포함할 수 있다.The electronic device may further include a fourth switch electrically connected to the second electronic controller to apply a driving signal to the second electronic controller.
본 발명에 따르면, 전기 신호로 배터리를 온/오프시키는 EBDS(electrical battery disconnect switch)를 배터리와 비상정지 스위치 사이에 전기적으로 연결시킴으로써, 예컨대, 건설기계의 시동이 안 꺼지거나 화재 등으로 인해 건설기계가 위험한 상황에 처한 경우, 즉, 건설기계에 비상 상황 발생 시 비상정지 스위치를 조작하여 엔진 전원뿐만 아니라 배터리까지 동시에 차단시킬 수 있고, 이를 통해, 건설기계의 시동을 완전하게 정지시킬 수 있다.According to the present invention, by electrically connecting the EBDS (electrical battery disconnect switch) for turning the battery on and off with an electrical signal between the battery and the emergency stop switch, for example, the construction machine is not started or due to fire, etc. Is in a dangerous situation, that is, when an emergency situation occurs in the construction machine, by operating the emergency stop switch to cut off not only the engine power but also the battery at the same time, it is possible to completely stop the start of the construction machine.
또한, 본 발명에 따르면, 비상 상황 발생 시 EBDS를 통해 전원 제어장치로부터 배터리를 회로적으로 분리시킴으로써, 쇼트의 위험을 줄일 수 있다.In addition, according to the present invention, by disconnecting the battery from the power control device via the EBDS in the event of an emergency, it is possible to reduce the risk of short.
도 1은 본 발명의 실시 예에 따른 건설기계용 전원 제어장치를 나타낸 구성도.1 is a block diagram showing a power control device for a construction machine according to an embodiment of the present invention.
이하에서는 첨부된 도면들을 참조하여 본 발명의 실시 예에 따른 건설기계용 전원 제어장치에 대해 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a power supply control device for a construction machine according to an embodiment of the present invention.
아울러, 본 발명을 설명함에 있어서, 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단된 경우 그 상세한 설명은 생략한다.In addition, in describing the present invention, when 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 thereof will be omitted.
도 1에 도시한 바와 같이, 본 발명의 실시 예에 따른 건설기계용 전원 제어장치(100)는 굴삭기와 같은 건설기계에 설치되어, 예컨대, 건설기계의 시동이 안 꺼지거나 화재 등으로 인해 건설기계가 위험한 상황에 처하는 경우 등과 같은 건설기계에 비상 상황 발생 시 건설기계의 시동이 완전히 정지되도록, 건설기계를 동작시키기 위해 인가되는 전원을 차단하는 제어장치이다. 이를 위해, 건설기계용 전원 제어장치(100)는 제1 전자 제어부(110), 제1 스위치(120) 및 제2 스위치(130)를 포함하여 형성된다.As shown in Figure 1, the construction machine power control device 100 according to an embodiment of the present invention is installed in a construction machine, such as an excavator, for example, construction machinery due to the start of the construction machine is not turned off or fire, etc. Is a control device that cuts off the power applied to operate the construction machine so that the start of the construction machine is completely stopped when an emergency situation occurs in the construction machine, such as when a dangerous situation. To this end, the construction machine power control device 100 is formed to include a first electronic control unit 110, the first switch 120 and the second switch 130.
제1 전자 제어부(110)는 건설기계의 엔진 구동을 제어하는 엔진 ECU(electronic control unit)로 구비된다. 이러한 제1 전자 제어부(110)는 전원 인가 시 작동되어, 엔진을 구동시키거나 엔진을 멈추게 한다.The first electronic controller 110 is provided as an engine ECU (electronic control unit) for controlling the engine driving of the construction machine. The first electronic control unit 110 is operated when power is applied to drive the engine or stop the engine.
제1 스위치(120)는 제1 전자 제어부(110)와 전기적으로 연결된다. 구체적으로, 제1 스위치(120)는 제2 스위치(130)를 매개로 제1 전자 제어부(110)와 전기적으로 연결된다. 본 발명의 실시 예에서, 제1 스위치(120)는 비상정지 스위치(emergency stop switch)로 구비된다. 이에 따라, 건설기계에 비상 상황이 발생되면, 운전자는 제1 스위치(120)를 조작하여, 엔진을 멈추게 된다. 즉, 엔진 구동 시에는 제1 스위치(120)의 a단자와 A단자가 연결된 구조를 이루지만, 운전자의 조작에 의해 제1 스위치(120)가 작동되어 a단자와 A단자가 분리되면, 제1 전자 제어부(110)로 인가되는 전원이 차단되어 엔진이 멈추게 된다.The first switch 120 is electrically connected to the first electronic controller 110. In detail, the first switch 120 is electrically connected to the first electronic controller 110 through the second switch 130. In an embodiment of the present invention, the first switch 120 is provided as an emergency stop switch. Accordingly, when an emergency situation occurs in the construction machine, the driver operates the first switch 120 to stop the engine. That is, when the engine is driven, the terminal a and the terminal A of the first switch 120 are connected, but when the first switch 120 is operated by the driver's operation and the terminal a and the terminal A are separated, The power applied to the electronic controller 110 is cut off to stop the engine.
제2 스위치(130)는 제1 전자 제어부(110)와 배터리(10) 사이에 전기적으로 연결된다. 이때, 제2 스위치(130)는 제1 전자 제어부(110)와 제1 스위치(120)를 연결하는 라인 상에 설치된다. 본 발명의 실시 예에서, 이러한 제2 스위치(130)는 배터리(10)를 전기적으로 온(on)/오프(off)시키는 EBDS(electrical battery disconnect switch)로 구비된다. 이에 따라, 운전자의 제1 스위치(120) 조작을 통해 제1 전자 제어부(110)로의 전원 공급이 차단되는 경우, 즉, 제1 스위치(120)가 작동되는 경우, 제1 스위치(120)와 전기적으로 연결되어 있는 제2 스위치(130)는 제1 스위치(120)의 작동에 연동되어 배터리(10)를 컷 오프(cut off)시키게 된다.The second switch 130 is electrically connected between the first electronic controller 110 and the battery 10. In this case, the second switch 130 is installed on a line connecting the first electronic controller 110 and the first switch 120. In an embodiment of the present invention, the second switch 130 is provided as an electric battery disconnect switch (EBDS) for electrically turning on / off the battery 10. Accordingly, when the power supply to the first electronic controller 110 is cut off through the driver's first switch 120 operation, that is, when the first switch 120 is operated, the first switch 120 is electrically connected to the first switch 120. The second switch 130 which is connected to the first switch 120 is linked to the operation of the first switch 120 to cut off the battery 10.
이와 같이, 본 발명의 실시 예에서는 비상정지 스위치인 제1 스위치(120)와 이의 동작에 연동되는 제2 스위치(130)를 통해, 엔진 전원 차단뿐만 아니라 배터리(10)까지 동시에 차단시킬 수 있고, 이와 같은 이중 차단을 통해, 건설기계의 시동을 즉각적이고도 완전하게 정지시킬 수 있다. 또한, 본 발명의 실시 예에서는 제1 스위치(120) 작동 시 제2 스위치(130)를 통해 배터리(10)를 회로적으로 분리시킴으로써, 쇼트 발생 위험을 줄일 수 있게 된다.As described above, according to the exemplary embodiment of the present invention, not only the engine power but also the battery 10 may be blocked at the same time through the first switch 120 which is an emergency stop switch and the second switch 130 interlocked with the operation thereof. This double shut-off makes it possible to stop the construction machine immediately and completely. In addition, in the exemplary embodiment of the present invention, the battery 10 is circuitically separated through the second switch 130 when the first switch 120 is operated, thereby reducing a risk of short generation.
이때, 제2 스위치(130)는 제1 스위치(120)를 매개로 이와 전기적으로 연결되어 있는 제2 전자 제어부(140)에 의해 온(on)/오프(off) 스위칭 동작이 제어된다. 즉, 제2 스위치(130)는 정상적인 건설기계 운용 시에는 제2 전자 제어부(140)에 의해 온(on)/오프(off) 스위칭 동작이 제어되어 배터리(10)를 전원 제어장치(100)에 회로적으로 연결시키거나 분리시킨다.In this case, the second switch 130 is controlled by the on / off switching operation by the second electronic controller 140 electrically connected thereto via the first switch 120. That is, in normal construction equipment operation, the second switch 130 controls the on / off switching operation by the second electronic control unit 140 to transfer the battery 10 to the power control device 100. Connect or disconnect circuits.
또한, 제2 스위치(130)는 건설기계에 비상 상황이 발생된 경우, 제1 스위치(120)의 작동에 연동되어, 즉, 제1 스위치(120) 작동 시 오프(off) 상태로 전환되어 배터리(10)를 전원 제어장치(100)에 회로적으로 분리시킨다. 다시 말해, 건설기계에 비상 상황 발생 시, 제2 스위치(130)는 배터리(10)로부터 전원 제어장치(100)에 인가되는 전원을 차단시키는 역할을 하게 된다.In addition, when an emergency occurs in the construction machine, the second switch 130 is interlocked with the operation of the first switch 120, that is, switched to the off state when the first switch 120 is operated so that the battery The circuit 10 is circuit-separated from the power supply control device 100. In other words, when an emergency occurs in the construction machine, the second switch 130 serves to cut off the power applied to the power control device 100 from the battery 10.
여기서, 제2 전자 제어부(140)는 이와 전기적으로 연결되어 있는 제3 스위치(150)로부터 인가되는 전기적 신호, 즉, 제2 스위치(130)를 온(on)/오프(off)시키는 신호를 감지하고, 감지한 신호를 바탕으로 제2 스위치(130)의 온(on)/오프(off) 스위칭 동작을 제어하게 된다.Here, the second electronic controller 140 detects an electrical signal applied from the third switch 150 electrically connected thereto, that is, a signal for turning on / off the second switch 130. The on / off switching operation of the second switch 130 is controlled based on the detected signal.
본 발명의 실시 예에서, 제3 스위치(150)는 메인 스위치(main switch)로 구비된다. 이러한 제3 스위치(150)가 운전자의 조작에 의해 온(on) 상태가 되면, 제2 전자 제어부(140)는 제2 스위치(130)를 온(on)시키고, 이에 따라, 제2 스위치(130)와 전기적으로 연결되어 있는 배터리(10) 또한 전원 제어장치(100)를 이루는 회로에 전기적으로 연결되어, 배터리(10) 전원이 배터리(10)로부터 제1 전자 제어부(110)로 인가된다.In an embodiment of the present invention, the third switch 150 is provided as a main switch. When the third switch 150 is turned on by a driver's operation, the second electronic controller 140 turns on the second switch 130, and accordingly, the second switch 130. ) Is also electrically connected to the circuit forming the power control device 100, the power of the battery 10 is applied to the first electronic controller 110 from the battery 10.
또한, 제3 스위치(150)가 운전자의 조작에 의해 오프(off) 상태로 전환되면, 제2 전자 제어부(140)는 제2 스위치(130)를 오프(off)시키고, 이에 따라, 제2 스위치(130)와 전기적으로 연결되어 있는 배터리(10)는 전원 제어장치(100)로부터 회로적으로 분리되어, 결국, 배터리(10)로부터 제1 전자 제어부(110)로 인가되는 전원은 차단되고, 이에 따라, 제1 전자 제어부(110)에 의해 제어되는 엔진 구동은 멈추게 된다.In addition, when the third switch 150 is turned off by the driver's operation, the second electronic controller 140 turns off the second switch 130, and thus, the second switch. The battery 10 electrically connected to the 130 is separated from the power control device 100 by a circuit, and as a result, the power applied from the battery 10 to the first electronic controller 110 is cut off. Accordingly, engine driving controlled by the first electronic controller 110 is stopped.
여기서, 메인 스위치인 제3 스위치(150)의 온(on)/오프(off) 스위칭 동작을 통한 배터리(10)의 전기 회로적인 연결 및 분리는 정상적인 건설기계 운용 시 건설기계를 동작시키거나 정지시키는 상황 하에서 이루어진다. 이에 반해, 건설기계의 엔진을 즉각적이고도 완전하게 멈춰야 되는 비상 상황이 발생된 경우에는 비상정지 스위치인 제1 스위치(120) 및 이의 작동에 연동되도록 구비된 EBDS인 제2 스위치(130)의 스위칭 동작을 통해 배터리(10)의 전기 회로적인 분리가 이루어진다.Here, the electrical circuit connection and disconnection of the battery 10 through the on / off switching operation of the third switch 150, which is the main switch, may operate or stop the construction machine during normal construction machine operation. Under the circumstances. On the contrary, in case of an emergency situation in which the engine of the construction machine needs to be stopped immediately and completely, the switching operation of the first switch 120 which is an emergency stop switch and the second switch 130 which is an EBDS provided to be linked to the operation thereof. Through the electrical circuit separation of the battery 10 is made.
한편, 제2 스위치(130)와 제1 전자 제어부(110)를 연결하는 라인 상에는 제4 스위치(160)가 설치된다. 본 발명의 실시 예에서, 제4 스위치(160)는 스타트 스위치(start switch)로 구비된다. 운전자의 조작을 통해 이러한 제4 스위치(160)가 온(on) 상태가 되면, 배터리(10)로부터 발생되는 전원이 제1 전자 제어부(110)로 인가되고, 이에 따라, 제1 전자 제어부(110)에 의해 제어되는 엔진이 구동하게 된다.On the other hand, the fourth switch 160 is installed on a line connecting the second switch 130 and the first electronic controller 110. In an embodiment of the present invention, the fourth switch 160 is provided as a start switch. When the fourth switch 160 is turned on by the driver's operation, power generated from the battery 10 is applied to the first electronic controller 110, and accordingly, the first electronic controller 110 is applied. The engine controlled by) is driven.
또한, 제4 스위치(160)는 제2 전자 제어부(140)와 전기적으로 연결된다. 이에 따라, 운전자의 조작에 의해, 제4 스위치(160)가 온(on) 상태가 되면, 제1 전자 제어부(110)로 배터리(10) 전원이 인가되는 한편, 제2 전자 제어부(140)에 key on 및 cranking 신호와 같은 구동 신호가 인가된다. 이로써, 제2 전자 제어부(140)를 통해 제어되는 건설기계의 해당 파트가 구동된다.In addition, the fourth switch 160 is electrically connected to the second electronic controller 140. Accordingly, when the fourth switch 160 is turned on by the driver's operation, the battery 10 power is applied to the first electronic controller 110, and the second electronic controller 140 is applied to the second electronic controller 140. Driving signals such as key on and cranking signals are applied. As a result, the corresponding part of the construction machine controlled by the second electronic controller 140 is driven.
아울러, 본 발명의 실시 예에서는 제2 스위치(130)와 제4 스위치(160)를 전기적으로 연결하는 라인 상에 과전류를 차단하는 퓨즈(fuse)(170)가 설치될 수 있다.In addition, in an embodiment of the present invention, a fuse 170 may be installed on the line electrically connecting the second switch 130 and the fourth switch 160 to cut off the overcurrent.
이하, 본 발명의 실시 예에 따른 건설기계용 전원 제어장치의 작용에 대하여 설명하기로 한다.Hereinafter, the operation of the power supply control device for a construction machine according to an embodiment of the present invention will be described.
운전자가 메인 스위치인 제3 스위치(150)를 온(on)시키면, 제2 전자 제어부(140)가 EBDS로 구비되는 제2 스위치(130)를 온(on)시키고, 이에 따라, 배터리(10)가 전원 제어장치(100)에 전기적으로 연결된다. 그 다음, 운전자가 스타트 스위치인 제4 스위치(160)를 온(on)시키면, 건설기계가 key on 및 cranking되어, 동작 가능한 상태가 된다.When the driver turns on the third switch 150 which is the main switch, the second electronic controller 140 turns on the second switch 130 provided with the EBDS, and thus, the battery 10 Is electrically connected to the power supply control device 100. Then, when the driver turns on the fourth switch 160, which is a start switch, the construction machine is keyed on and cranked to be in an operable state.
한편, 건설기계의 동작 혹은 작업 종료를 위해, 스타트 스위치인 제4 스위치(160)를 오프(off) 했음에도 불구하고, 건설기계가 오작동할 경우, 예컨대, 시동이 꺼지지 않거나, 건설기계에 화재가 발생하는 등의 비상 상황 발생 시, 비상정지 스위치인 제1 스위치(120)를 조작하면, 제1 전자 제어부(110)의 전원이 차단됨과 동시에 EBDS인 제2 스위치(130)가 오프(off)되고, 이에 따라, 배터리(10)가 컷 오프(cut off)되어, 회로적으로 분리된다.On the other hand, even when the construction switch malfunctions, even if the fourth switch 160 which is the start switch is turned off for the operation or the end of the work of the construction machine, for example, the start does not turn off or a fire occurs in the construction machine. When the emergency switch, such as an emergency stop switch, is operated, the power of the first electronic controller 110 is cut off and at the same time the second switch 130 of the EBDS is turned off. As a result, the battery 10 is cut off and separated into circuits.
이와 같이, 본 발명의 실시 예에 따른 건설기계용 전원 제어장치(100)는 비상 상황 발생 시, 비상정지 스위치인 제1 스위치(120) 및 이의 작동과 연동되도록 이와 전기적으로 연결되어 있는 EBDS인 제2 스위치(130)를 통해, 제1 전자 제어부(110)로 인가되는 엔진 전원을 차단함과 동시에, 배터리(10) 또한 전기 회로적으로 분리시켜 배터리(10)로부터 인가되는 전원을 완벽하게 차단시킬 수 있다. 이를 통해, 건설기계의 시동을 즉각적이고도 완전하게 정지시킬 수 있고, 배터리(10) 미 차단 시 발생되는 쇼트의 위험 또한 줄일 수 있다.As such, when the emergency situation occurs, the power supply control apparatus 100 for a construction machine according to an embodiment of the present invention is an EBDS that is electrically connected to the first switch 120, which is an emergency stop switch, and an operation thereof. Through the two switches 130, the engine power applied to the first electronic controller 110 is cut off, and the battery 10 is also electrically disconnected to completely cut off the power applied from the battery 10. Can be. Through this, the start of the construction machine can be stopped immediately and completely, and the risk of short circuit occurring when the battery 10 is not cut off can be reduced.
이상과 같이 본 발명은 비록 한정된 실시 예와 도면에 의해 설명되었으나, 본 발명은 상기의 실시 예에 한정되는 것은 아니며, 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다.As described above, although the present invention has been described with reference to the limited embodiments and the drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.
그러므로 본 발명의 범위는 설명된 실시 예에 국한되어 정해져서는 아니 되며, 후술하는 특허청구범위뿐만 아니라 특허청구범위와 균등한 것들에 의해 정해져야 한다.Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

Claims (5)

  1. 엔진 구동을 제어하는 제1 전자 제어부;A first electronic controller for controlling engine driving;
    상기 제1 전자 제어부와 전기적으로 연결되어, 상기 제1 전자 제어부로 인가되는 전원을 차단하는 제1 스위치; 및A first switch electrically connected to the first electronic controller to cut off power applied to the first electronic controller; And
    상기 제1 전자 제어부와 배터리 사이에 전기적으로 연결되고, 상기 제1 전자 제어부와 상기 제1 스위치를 연결하는 라인 상에 설치되어, 상기 배터리를 온/오프시키는 제2 스위치;A second switch electrically connected between the first electronic control unit and the battery and installed on a line connecting the first electronic control unit and the first switch to turn on / off the battery;
    를 포함하고,Including,
    상기 제2 스위치는 상기 제1 스위치 작동에 연동되어 상기 배터리를 컷 오프(cut off)시키는 것을 특징으로 하는 건설기계용 전원 제어장치.And the second switch is linked to the operation of the first switch to cut off the battery.
  2. 제1항에 있어서,The method of claim 1,
    상기 제2 스위치와 전기적으로 연결되어, 상기 제2 스위치를 제어하는 제2 전자 제어부를 더 포함하는 것을 특징으로 하는 건설기계용 전원 제어장치.And a second electronic control unit electrically connected to the second switch to control the second switch.
  3. 제2항에 있어서,The method of claim 2,
    상기 제2 전자 제어부는 상기 제1 스위치를 매개로 상기 제2 스위치와 전기적으로 연결되는 것을 특징으로 하는 건설기계용 전원 제어장치.And the second electronic control unit is electrically connected to the second switch via the first switch.
  4. 제2항에 있어서,The method of claim 2,
    상기 제2 전자 제어부와 전기적으로 연결되어, 상기 제2 전자 제어부에 상기 제2 스위치를 온/오프시키는 신호를 인가하는 제3 스위치를 더 포함하는 것을 특징으로 하는 건설기계용 전원 제어장치.And a third switch electrically connected to the second electronic control unit and configured to apply a signal for turning on / off the second switch to the second electronic control unit.
  5. 제2항에 있어서,The method of claim 2,
    상기 제2 전자 제어부에 전기적으로 연결되어, 상기 제2 전자 제어부에 구동 신호를 인가하는 제4 스위치를 더 포함하는 것을 특징으로 하는 건설기계용 전원 제어장치.And a fourth switch electrically connected to the second electronic control unit and configured to apply a driving signal to the second electronic control unit.
PCT/KR2014/004476 2014-05-20 2014-05-20 Power control device for construction machine WO2015178516A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011021880A2 (en) * 2009-08-21 2011-02-24 주식회사 레오모터스 System and method for preventing excessive charging or excessive discharging of batteries
WO2012011618A1 (en) * 2010-07-21 2012-01-26 볼보 컨스트럭션 이큅먼트 에이비 Emergency stop system for a hybrid excavator
WO2012173348A2 (en) * 2011-06-13 2012-12-20 한국항공우주연구원 Power supply system having an emergency power supply cutoff function
WO2012173408A2 (en) * 2011-06-17 2012-12-20 주식회사 유라코퍼레이션 Power relay assembly driving apparatus and driving method thereof
US20130116876A1 (en) * 2010-07-09 2013-05-09 V-Ens Co., Ltd. Electric vehicle and method for controlling emergency thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011021880A2 (en) * 2009-08-21 2011-02-24 주식회사 레오모터스 System and method for preventing excessive charging or excessive discharging of batteries
US20130116876A1 (en) * 2010-07-09 2013-05-09 V-Ens Co., Ltd. Electric vehicle and method for controlling emergency thereof
WO2012011618A1 (en) * 2010-07-21 2012-01-26 볼보 컨스트럭션 이큅먼트 에이비 Emergency stop system for a hybrid excavator
WO2012173348A2 (en) * 2011-06-13 2012-12-20 한국항공우주연구원 Power supply system having an emergency power supply cutoff function
WO2012173408A2 (en) * 2011-06-17 2012-12-20 주식회사 유라코퍼레이션 Power relay assembly driving apparatus and driving method thereof

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