KR200351927Y1 - Overheating Preventive Circuit for Electric Charging Lantern - Google Patents
Overheating Preventive Circuit for Electric Charging Lantern Download PDFInfo
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- KR200351927Y1 KR200351927Y1 KR20-2004-0006653U KR20040006653U KR200351927Y1 KR 200351927 Y1 KR200351927 Y1 KR 200351927Y1 KR 20040006653 U KR20040006653 U KR 20040006653U KR 200351927 Y1 KR200351927 Y1 KR 200351927Y1
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- circuit
- charging
- rechargeable
- switch
- rechargeable battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- 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
- H02H7/18—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 batteries; for accumulators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
본 고안은 충전전압에 의해 턴-오프(turn OFF)되는 트랜지스터를 램프를 ON/OFF시키기 위한 스위치와 충전지 사이에 설치하여 충전시 닫힌 스위치를 경유 램프로 흐르는 전류를 차단함으로써 전력낭비를 줄이고 충전시간을 단축하며, 충전회로를 과열로부터 보호하도록 한 충전식랜턴의 과열방지회로에 관한 것으로, 충전지(BT)로부터 인가되는 전압에 의해 상시(常時) "ON"상태를 유지하고, 정류회로부(30) 또는 정전압회로부(40)로부터 충전지(BT)로 인가되는 충전전압에 의해 턴-오프(turn-off) 상태로 전환하는 스위칭소자(Q1)를 충전지(BT)와 스위치(SW) 사이에 설치하여 구성된 것이다.The present invention installs a transistor that is turned off by the charging voltage between the switch for switching the lamp on and off and the rechargeable battery to cut off the current flowing through the lamp through the closed switch during charging, reducing power consumption and charging time The present invention relates to an overheat prevention circuit of a rechargeable lantern that shortens the voltage of the rechargeable circuit and protects the charging circuit from overheating. The switching element Q1 is switched between the rechargeable battery BT and the switch SW to switch to a turn-off state by the charging voltage applied from the constant voltage circuit unit 40 to the rechargeable battery BT. .
이와 같은 본 고안은 충전시 닫힌 스위치를 경유 램프로 흐르는 전류를 자동으로 차단하도록 구성되어 있기 때문에 전력낭비를 줄이고 충전시간을 단축하며, 충전회로를 과열로부터 보호할 수 있는 효과가 있다.The present invention is configured to automatically cut off the current flowing through the lamp via the switch when charging, reducing the power consumption, shortening the charging time, there is an effect that can protect the charging circuit from overheating.
Description
본 고안은 충전식랜턴의 과열방지회로에 관한 것으로, 더욱 상세하게는 충전전압에 의해 턴-오프(turn OFF)되는 트랜지스터를 램프를 ON/OFF시키기 위한 스위치와 충전지 사이에 설치하여 충전시 닫힌 스위치를 경유 램프로 흐르는 전류를 자동 차단하도록 함으로써 전력낭비를 줄이고 충전시간을 단축하며, 충전회로를 과열로부터 보호하도록 한 충전식랜턴의 과열방지회로에 관한 것이다.The present invention relates to an overheat prevention circuit of a rechargeable lantern, and more particularly, a switch that is turned off by a charging voltage is installed between a switch for turning on / off a lamp and a rechargeable battery, The present invention relates to an overheat prevention circuit of a rechargeable lantern that automatically cuts off the current flowing through a diesel lamp to reduce power consumption, shorten the charging time, and protect the charging circuit from overheating.
일반적으로 충전식랜턴은 내부에 단상 상용교류전원이나 자동차의 배터리로부터 공급되는 전원을 충전에 적합한 전원으로 변환하기 위한 전원회로와, 충전지를 갖추고 있으며, 충전을 마친 후 스위치에 의해 접점을 닫거나 개방하여 충전지로부터 램프로 전류를 공급하거나 차단하여 램프를 점등시키거나 소등시키도록 구성되어 있었다.In general, the rechargeable lantern has a power circuit for converting the power supplied from a single-phase commercial AC power source or a car battery into a power source suitable for charging, and a rechargeable battery, and after charging is completed, the rechargeable battery is closed or opened by a switch. It was configured to turn on or turn off the lamp by supplying or blocking current from the lamp to the lamp.
그러나, 이와 같은 종래 충전식랜턴의 충전회로는 충전지에 충전회로의 출력단과 램프가 병렬로 접속되어 있는 구조로 되어 있었기 때문에 충전시 스위치의 접점을 개방한 상태로 하지 않고 접점이 닫힌 상태로 두면, 충전지로 흐르는 전류가 분기되어 닫힌 스위치를 경유 램프로 흘러 충전 중 램프가 점등상태로 될 뿐만 아니라 충전전류의 낭비가 크고, 충전시간을 지연시키는 문제점이 있었다.However, since the charging circuit of the conventional rechargeable lantern has a structure in which the output terminal of the charging circuit and the lamp are connected in parallel to the rechargeable battery, if the contact of the switch is not opened but the contact is closed, The current flowing to the branch flows through the closed switch to the lamp via the lamp, not only the lamp is turned on during charging, but also a waste of the charging current, there is a problem of delaying the charging time.
또한, 충전시 전류가 충전지와 램프에 동시에 흐르기 때문에 부하전류가 증가하여 충전회로가 과열로 인해 파손되거나 화재의 우려가 있었다.In addition, since the current flows in the rechargeable battery and the lamp at the same time during charging, the load current increases and the charging circuit may be damaged due to overheating or fire.
본 고안은 상기와 같은 문제점을 해결하기 위하여 이루어진 것으로, 그 목적은 충전시 닫혀진 스위치를 통해 램프로 흐르는 전류를 자동으로 차단하도록 함으로써 충전전류를 절감하는 동시에 충전시간을 단축시킬 수 있으며, 충전회로의 발열을 억제하여 충전회로를 보호할 수 있는 충전식랜턴의 과열방지회로를 제공함에 있다.The present invention has been made to solve the above problems, its purpose is to automatically cut off the current flowing to the lamp through a switch that is closed during charging to reduce the charging current and at the same time shorten the charging time, It is to provide an overheat prevention circuit of a rechargeable lantern that can protect the charging circuit by suppressing heat generation.
이러한 본 고안의 목적을 달성하기 위하여 충전지로부터 인가되는 전압에 의해 상시(常時) "ON"상태를 유지하고, 정류회로부 또는 정전압회로부로부터 충전지로 인가되는 충전전압에 의해 턴-오프 상태로 전환하는 스위칭소자를 충전지와 스위치 사이에 설치하여 충전식랜턴의 과열방지회로가 제공된다.In order to achieve the object of the present invention, the switching is always maintained in the "ON" state by the voltage applied from the rechargeable battery, and switched to the turn-off state by the charging voltage applied to the rechargeable battery from the rectifying circuit portion or the constant voltage circuit portion. The device is placed between the battery and the switch to provide an overheat protection circuit for the rechargeable lantern.
도 1은 본 고안에 따른 충전식랜턴의 과열방지회로를 보인 회로도1 is a circuit diagram showing an overheat prevention circuit of a rechargeable lantern according to the present invention
* 도면의 주요부분에 대한 부호설명 ** Explanation of Signs of Major Parts of Drawings *
30 : 정류회로부 40 : 정전압회로부30: rectifier circuit portion 40: constant voltage circuit portion
BT : 충전지 SW : 스위치BT: Rechargeable Battery SW: Switch
LP : 램프 Q1 : 스위칭소자LP: Lamp Q1: Switching element
D4,D7 : 정류다이오드D4, D7: Rectifier Diode
이하 본 고안에 따른 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 충전식랜턴의 과열방지회로를 보인 회로도로서, 이에 도시된 바와 같이 충전지(BT)로부터 인가되는 전압에 의해 상시(常時) "ON"상태를 유지하고, 정류회로부(30) 또는 정전압회로부(40)로부터 충전지(BT)로 인가되는 충전전압에 의해 턴-오프(Turn-Off) 상태로 전환하는 스위칭소자(Q1)를 충전지(BT)와 스위치(SW) 사이에 설치하여 구성한다.1 is a circuit diagram showing an overheat prevention circuit of a rechargeable lantern according to the present invention, and as shown therein, is always kept "ON" by the voltage applied from the rechargeable battery BT, and the rectifier circuit unit 30 Alternatively, the switching element Q1 is disposed between the rechargeable battery BT and the switch SW to switch to a turn-off state by the charging voltage applied from the constant voltage circuit unit 40 to the rechargeable battery BT. do.
여기서 정류회로부(30)는 상용교류전원인 AC 110~220볼트를 직류로 변환하는 전원회로로써 벽면에 설치된 콘센트에 전원플러그(32)를 꼽게 되면, 전원플러그(32)를 통해 트랜스(MF)의 1차측에 상용교류전원이 공급되어 트랜스(MF)의 2차측으로부터 충전에 적합한 전압으로 변환되어 출력되며, 정류다이오드(D2)(D3)에서 반파정류되어 직류로 변환된다.Here, the rectifier circuit unit 30 is a power circuit for converting AC 110-220 volts, which is a commercial AC power, into a power outlet 32 installed on a wall, and the power plug 32 of the transformer 1 through the power plug 32. The commercial AC power is supplied to the vehicle side, and is converted into a voltage suitable for charging from the secondary side of the transformer MF, and is outputted. The half-wave rectified by the rectifier diodes D2 and D3 is converted into direct current.
또, 정전압회로부(40)는 자동차의 배터리전원(예, 12V~24V)을 충전에 적합한 전압으로 변환하기 위한 것으로 자동차의 시거잭을 연결잭(42)에 접속하게 되면, 통상의 정전압레귤레이터(IC1)(IC2)와 주변의 저항(R1)(R2)(R3),다이오드(D1)(D5)(D6)에 의해 정전압을 출력하게 된다.In addition, the constant voltage circuit unit 40 is for converting a battery power source (e.g., 12V to 24V) of a vehicle into a voltage suitable for charging. When the cigar jack of the vehicle is connected to the connection jack 42, a normal constant voltage regulator IC1 ( The constant voltage is output by IC2) and the peripheral resistors R1, R2, R3, and diodes D1, D5, and D6.
그리고, 스위치(SW)에 의해 충전지(BT)로부터 램프(LP)로 흐르는 전류의 흐름을 단속하여 램프(LP)를 점등 또는 소등시키게 된다.Then, the switch SW interrupts the flow of the current flowing from the rechargeable battery BT to the lamp LP to turn on or turn off the lamp LP.
한편, 상기 스위칭소자(Q1)는 콜렉터단자와 이미터단자가 상기 충전지(BT)와 스위치(SW)의 사이에 접속되고, 베이스단자는 정류회로부(30)와 정전압회로부(40)의 출력단에 접속되는 트랜지스터로 구성될 수 있으며, 예컨대 PNP형의 트랜지스터로 구성될 수 있다.On the other hand, in the switching element Q1, the collector terminal and the emitter terminal are connected between the rechargeable battery BT and the switch SW, and the base terminal is connected to the output terminal of the rectifier circuit portion 30 and the constant voltage circuit portion 40. It may be composed of a transistor, for example, may be composed of a transistor of the PNP type.
상기 정류회로부(30)와 정전압회로부(40)의 출력단으로부터 트랜지스터의 베이스단자로 이어지는 접속라인상에 설치되고, 트랜지스터의 베이스단자를 향해 순방향접속되는 정류다이오드(D4)(D7)를 구비하여 트랜지스터의 베이스단자에 접속된 콘덴서(C)에 축적된 전하가 정류회로부(30)와 정전압회로부(40)로 역류하는 것을 방지하도록 한다.A rectification diode (D4) (D7) provided on a connection line from the output terminal of the rectifying circuit section (30) and the constant voltage circuit section (40) to the base terminal of the transistor and forwardly connected toward the base terminal of the transistor. The charge accumulated in the capacitor C connected to the base terminal is prevented from flowing back to the rectifier circuit section 30 and the constant voltage circuit section 40.
또, 전류제한용저항(R4)을 통해 정류회로부(30)와 정전압회로부(40)의 출력단에 접속되어 있는 발광다이오드(LED)는 충전시 점등하여 충전중임을 시각적으로 알려주게 되며, 충전이 종료되어 정류회로부(30)와 정전압회로부(40)로부터 더 이상의 전류가 출력되지 않으면 소등하게 된다.In addition, the light emitting diode (LED) connected to the output terminal of the rectifying circuit section 30 and the constant voltage circuit section 40 through the current limiting resistor (R4) is turned on during charging to visually indicate that the charging is in progress. Therefore, when no more current is output from the rectifier circuit unit 30 and the constant voltage circuit unit 40, the light is turned off.
도면중 미설명 부호 D8은 충전지(BT)로부터 트랜지스터의 베이스단자로 직접 역류하는 것을 방지하기 위한 다이오드를 나타낸 것이며, R5는 트랜지스터의 베이스단자에 접속되는 저항을 나타낸 것이다.In the figure, reference numeral D8 denotes a diode for preventing direct backflow from the battery BT to the base terminal of the transistor, and R5 denotes a resistor connected to the base terminal of the transistor.
이하 본 고안에 따른 작용을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.
도 1에 도시된 바와 같이, 스위치(SW)의 접점이 닫힌 상태에서 정류회로부(30)에 접속된 플러그(32)를 상용교류전원에 접속하게 되면, 교류전압이 트랜스(MF)를 거치면서 충전에 적합한 전압으로 다운된 후 정류다이오드(D2)(D3)에 의해 반파정류되어 충전지(BT)에 직류성분의 충전전류를 공급하게 된다.As shown in FIG. 1, when the plug 32 connected to the rectifier circuit unit 30 is connected to a commercial AC power supply while the contact point of the switch SW is closed, AC voltage is charged while passing through the transformer MF. After being down to a voltage suitable for, it is half-wave rectified by the rectifying diodes D2 and D3 to supply the charging current of the DC component to the rechargeable battery BT.
이때, 정류회로부(30)로부터 출력되는 전류가 정류다이오드(D4)를 통해 스위칭소자(Q1)인 트랜지스터의 베이스단자를 향해 역방향으로 인가되면서 스위칭소자(Q1)가 턴-오프되어 스위칭소자(Q1)의 콜렉터-이미터간이 절연상태로 전환되어 정류회로부(30)로부터 스위치(SW)로 흐르는 전류가 차단되며, 램프(LP)는 소등된다.At this time, the current output from the rectifying circuit unit 30 is applied in the opposite direction toward the base terminal of the transistor, which is the switching element Q1, through the rectifying diode D4, so that the switching element Q1 is turned off and thus the switching element Q1. The collector-emitter is switched to an insulated state so that the current flowing from the rectifier circuit 30 to the switch SW is cut off, and the lamp LP is turned off.
그리고, 정류회로부(30)로부터 출력되는 전류가 전류제한용저항(R4)을 거쳐 발광다이오드(LED)로 흐르면서 발광다이오드(LED)가 점등되면서 충전중임을 시각적으로 알려주게 된다.In addition, the current output from the rectifying circuit unit 30 flows through the current limiting resistor R4 to the light emitting diode LED, thereby visually informing that the light emitting diode LED is turned on and being charged.
즉, 스위칭소자(Q1)인 PNP트랜지스터의 베이스단자에 역방향전압이 인가되면, PNP트랜지스터의 콜렉터단자와 이미터단자가 절연상태로 되어 전류가 흐르지 못하게 되며, 이 PNP트랜지스터의 콜렉터단자와 이미터단자에 직렬 접속되어 있는 스위치(SW)는 접점이 닫힌 상태이더라도 전류공급이 차단되어 램프(LP)가 소등된다.That is, when the reverse voltage is applied to the base terminal of the PNP transistor, which is the switching element Q1, the collector terminal and the emitter terminal of the PNP transistor are insulated, and current does not flow, and the collector and emitter terminals of the PNP transistor In the switch SW connected in series, the current supply is cut off even when the contact is closed, and the lamp LP is turned off.
한편, 전원플러그(32)가 상용전원으로부터 분리된 상태에서 자동차의 시거잭을 정전압회로부(40)의 입력단에 접속되어 있는 연결잭(42)에 접속하게 되면, 자동차의 배터리로부터 정전압회로부(40)에 직류가 공급되면서 통상의 정전압레귤레이터 "IC1"과 "IC2"와 주변의 저항(R1)(R2)(R3), 다이오드(D1)(D5)(D6)에 의해 자동차의 배터리로부터 공급되는 직류전압(예, 12V~24V)이 충전에 적합한 전압으로 변환되어 충전지(BT)에 공급된다.On the other hand, when the power plug 32 is disconnected from the commercial power source, when the cigar jack of the vehicle is connected to the connection jack 42 connected to the input terminal of the constant voltage circuit portion 40, a direct current from the battery of the vehicle to the constant voltage circuit portion 40 is obtained. DC voltage supplied from the battery of the vehicle by the constant voltage regulators " IC1 " and " IC2 " and the peripheral resistors R1, R2, R3, and diodes D1, D5, and D6. , 12V to 24V) is converted into a voltage suitable for charging and supplied to the rechargeable battery BT.
이때, 정전압회로부(40)로부터 출력되는 전류가 정류다이오드(D7)를 통해 스위칭소자(Q1)인 트랜지스터의 베이스단자에 역방향으로 인가되면서 스위칭소자(Q1)가 턴-오프되어 정전압회로부(40)와 충전지(BT)의 전류가 스위치(SW)로 흐르지 못하고 차단되며, 램프(LP)는 소등된다.At this time, the current output from the constant voltage circuit unit 40 is applied to the base terminal of the transistor which is the switching element Q1 in the reverse direction through the rectifying diode D7, so that the switching element Q1 is turned off so that the constant voltage circuit unit 40 The current of the rechargeable battery BT does not flow to the switch SW and is cut off, and the lamp LP is turned off.
그리고, 정전압회로부(40)로부터 출력되는 전류가 전류제한용저항(R4)을 거쳐 발광다이오드(LED)로 흐르면서 발광다이오드(LED)가 점등상태로 전환되면서 충전중임을 시각적으로 알려주게 된다.In addition, the current output from the constant voltage circuit unit 40 flows through the current limiting resistor R4 to the light emitting diode LED, thereby visually informing that the light emitting diode LED is turned on and being charged.
즉, 스위칭소자(Q1)인 트랜지스터의 베이스단자에 역방향전압이 인가되면, 트랜지스터의 콜렉터단자와 이미터단자가 절연상태로 되어 전류가 흐르지 못하게 되며, 이 트랜지스터의 콜렉터단자와 이미터단자에 직렬로 접속되어 있는 스위치(SW)는 접점이 닫힌 상태라도 전류공급이 차단되어 전류가 흐르지 못하여 램프(LP)가 소등된다.That is, when the reverse voltage is applied to the base terminal of the transistor which is the switching element Q1, the collector terminal and the emitter terminal of the transistor become insulated and current cannot flow, and the collector terminal and the emitter terminal of the transistor are connected in series. Even when the switch SW is connected, the current supply is cut off even when the contact is closed, so that the current does not flow and the lamp LP is turned off.
이후, 충전을 종료한 다음, 스위치(SW)의 접점이 닫힌 상태에서 상원교류전원에 접속되어 있는 플러그(32)와 자동차의 시거잭에 접속되어 있는 연결잭(42)을 분리하게 되면, 정류회로부(30)와 정전압회로부(40)로부터 출력되는 전류가 차단되면서 스위칭소자(Q1)인 PNP트랜지스터의 베이스단자가 로우레벨의 전위로 떨어지고, 충전지(BT)로부터 콜렉터단자를 경유 베이스단자로 전류가 흐르면서 스위칭소자(Q1)가 턴-온(Turn-On)되어 스위칭소자(Q1)의 콜렉터단자와 이미터단자가 통전 가능한 상태로 전환된다.Thereafter, after the charging is completed, the rectifier circuit unit 30 is disconnected when the plug 32 connected to the upper alternating current power supply and the connection jack 42 connected to the cigar jack of the vehicle are separated while the contact point of the switch SW is closed. ) And the current output from the constant voltage circuit unit 40 is cut off, so that the base terminal of the PNP transistor, which is the switching element Q1, drops to a low level potential, and the current flows from the rechargeable battery BT to the base terminal via the collector terminal. Q1 is turned on so that the collector terminal and the emitter terminal of the switching element Q1 are switched to a state in which electricity is supplied.
이때, 스위치(SW)의 접점이 이미 닫힌 상태이거나 닫게 되면, 램프(LP)로 전류가 공급되어 점등되며, 스위치(SW)의 접점을 개방하게 되면, 램프(LP)로 흐르는 전류가 차단되어 소등된다.At this time, when the contact point of the switch SW is already closed or closed, the current is supplied to the lamp LP and is turned on. When the contact point of the switch SW is opened, the current flowing to the lamp LP is cut off and turned off. do.
이상에서 설명한 바와 같은 본 고안은 충전시 닫힌 스위치를 경유 램프로 흐르는 전류를 자동으로 차단하도록 구성되어 있기 때문에 전력낭비를 줄이고 충전시간을 단축하며, 충전회로를 과열로부터 보호할 수 있는 효과가 있다.The present invention as described above is configured to automatically cut off the current flowing through the lamp via the switch when charging, reducing power consumption, shortening the charging time, there is an effect that can protect the charging circuit from overheating.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0006653U KR200351927Y1 (en) | 2004-03-11 | 2004-03-11 | Overheating Preventive Circuit for Electric Charging Lantern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0006653U KR200351927Y1 (en) | 2004-03-11 | 2004-03-11 | Overheating Preventive Circuit for Electric Charging Lantern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200351927Y1 true KR200351927Y1 (en) | 2004-06-01 |
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ID=49431100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2004-0006653U KR200351927Y1 (en) | 2004-03-11 | 2004-03-11 | Overheating Preventive Circuit for Electric Charging Lantern |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200351927Y1 (en) |
-
2004
- 2004-03-11 KR KR20-2004-0006653U patent/KR200351927Y1/en not_active IP Right Cessation
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