KR200143076Y1 - Low-voltage detect circuit for battery power of a car - Google Patents
Low-voltage detect circuit for battery power of a car Download PDFInfo
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- KR200143076Y1 KR200143076Y1 KR2019950054926U KR19950054926U KR200143076Y1 KR 200143076 Y1 KR200143076 Y1 KR 200143076Y1 KR 2019950054926 U KR2019950054926 U KR 2019950054926U KR 19950054926 U KR19950054926 U KR 19950054926U KR 200143076 Y1 KR200143076 Y1 KR 200143076Y1
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- relay
- power supply
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Classifications
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- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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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
Abstract
본 고안은, 철도차량의 가선전원이 단전 또는 차량기기의 이상 등에 의해 밧데리전원의 전압이 저전압의 상태인 경우 자동적으로 저전압의 상태를 감지하여 계속적인 방전을 차단함으로써 밧데리전원의 수명을 연장할 수 있도록 된 전동차의 저전압감지회로에 관한 것으로, 전동차에 사용되는 밧데리전원이 가선전원단선 또는 차량기기의 이상 등에 의해 밧데리 전원의 전압이 저전압의 상태인 경우에 있어서, 설정전압 이하인 경우에 여자되는 BLVD계전기와, 이 BLVD계전기의 여자시 여자되는 BatK계전기를 구비하여 구성되어, 설정전압 이하시 BatK계저기의 접점이 오프상태로 되어 밧데리 전원의 방전이 차단되는 것을 특징으로 한다.The present invention can extend the life of the battery power supply by automatically detecting the low voltage state and interrupting the continuous discharge when the cable power supply of the railway vehicle is low voltage due to power failure or an abnormality of the vehicle equipment. The present invention relates to a low voltage sensing circuit of a train, which is energized when the battery power used in the train is below the set voltage when the voltage of the battery power is low due to disconnection of a power line or an abnormality of the vehicle equipment. And a BatK relay which is excited when the BLVD relay is excited, and when the set voltage is below the set voltage, the contact of the BatK diaphragm is turned off so that the discharge of the battery power supply is interrupted.
Description
제1도는 본 고안에 따른 전동차의 밧데리전원 저전압감지회로도,1 is a battery power low voltage detection circuit diagram of an electric vehicle according to the present invention,
제2도는 밧데리전원의 정압에 대한 BLVD계전기와 PANDR계전기의 출력전압과의 관계를 나타낸 도면,2 is a diagram showing the relationship between the BLVD relay and the output voltage of the PANDR relay for the positive voltage of the battery power supply,
제3도는 종래 전동차의 밧데리전원 저전압감지회로이다.3 is a battery power low voltage detection circuit of a conventional electric vehicle.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
19, 103 : 전차인통 밧데리라인19, 103: tank line
본 고안은 전동차의 밧데리전원 저전압 감지회로에 관한 것으로, 특히 철도차량의 가선전원이 단전 또는 차량기기의 이상 등에 의해 밧데리전원의 전압이 저전압의 상태인 경우, 자동적으로 저전압의 상태를 감지하여 계속적인 방전을 차단함으로써 밧데리전원의 수명을 연장할 수 있도록 된 전동차의 저전압 감지회로에 관한 것이다.The present invention relates to a battery power low voltage detection circuit of an electric vehicle. Especially, when the power supply of a railway vehicle is a low voltage state due to a power failure or an abnormality of a vehicle device, the battery power automatically detects a low voltage state and continuously The present invention relates to a low voltage detection circuit of an electric vehicle that can extend the life of a battery power source by interrupting discharge.
제3도는 종래 전동차의 밧데리전원 저전압 감지회로도로서, 먼저 판토그라프(pantograph)가 약 8분 동안 상승되지 않게 되면, 전차인통 밧데리전원(103)이 ACN차단기와 BCDR계전기로 이루어진 회로로 인가되어 상기 BCDR계전기가 여자되게 된다.따라서, 상기 BCDR계전기의 a접점이 온상태로 되어 상기 전차인통 밧데리전원(103)이 ACN차단기와, TCR1계전기의 b접점, 상기 BCDR계전기의 a접점 및, BatKN2계전기로 이루어진 회로로 인가되어 상기 BatKN2 계전기가 여자되게 된다.FIG. 3 is a low voltage detection circuit diagram of a battery power source of a conventional electric vehicle. First, when a pantograph does not rise for about 8 minutes, the battery-powered battery tank 103 is applied to a circuit consisting of an ACN breaker and a BCDR relay, thereby providing the BCDR. Therefore, the relay a becomes a contact point of the BCDR relay, so that the tank-powered battery power source 103 is composed of an ACN breaker, a contact b of the TCR1 relay, a contact a of the BCDR relay, and a BatKN2 relay. Applied to the circuit to excite the BatKN2 relay.
이후, 상기 BatKN2 계전기의 b접점과, 다이오드(D10) 및, 배터리 접촉기(BatK)로 이루어진 회로로 인가되지 않게 되어 상기 BatK계전기가 소자되게 된다.Thereafter, the BatK relay is not applied to the circuit consisting of the contact b of the BatKN2 relay, the diode D10, and the battery contactor BatK.
다음에, 상기 BatK계전기의 소자에 의해 상기 BatK계전기의 접점이 오프상태로 됨으로써 밧데리전원(Bat)이 상기 BatK계전기의 접점과 BatN2로 이루어진 회로로 인가되지 않게 되어 상기 밧데리전원(Bat)의 방전이 방지되게 된다.Then, the contact of the BatK relay is turned off by the element of the BatK relay, so that the battery power source Bat is not applied to the circuit composed of the contact of the BatK relay and BatN2, thereby discharging the battery power source Bat. Will be prevented.
그러나, 상기한 바와 같이 종래 전동차에 사용되는 밧데리전원 과방전방지회로는 BCDR계전기에 의해서 밧데리가 투입되고, 소정 시간 후 판토그라프가 상승되지 않게 되면, 밧데리전원 접촉기(BatK)가 소자되어 밧데리전원의 방전이 방지되지만, 일정 시간 동안 불필요한 전압방전에 의한 손실로 밧데리전원의 수명이 단축되는 문제점이 있었다.However, as described above, in the battery power over-discharge prevention circuit used in a conventional electric vehicle, when the battery is input by the BCDR relay and the pantograph does not rise after a predetermined time, the battery power contactor (BatK) is demagnetized. Although the discharge is prevented, there is a problem that the life of the battery power supply is shortened due to the loss due to unnecessary voltage discharge for a certain time.
이에 본 고안은 상기한 문제점을 해결하기 위한 것으로, 철도차량의 가선전원이 단전 또는 차량기기의 이상 등에 의해 밧데리전원의 전압이 저전압의 상태인 경우 자동적으로 저전압의 상태를 감지하여 계속적인 방전을 차단함으로써 밧데리전원의 수명을 연장할 수 있도록 된 전동차의 저전압 감지회로를 제공하는데 그 목적이 있다.Accordingly, the present invention is to solve the above problems, and when the power supply of the railway vehicle is a low voltage due to power failure or vehicle equipment, the low voltage of the battery power supply automatically detects the state of the low voltage and blocks continuous discharge. The purpose of the present invention is to provide a low voltage detection circuit for an electric vehicle that can extend the life of a battery power supply.
상기한 바의 목적을 달성하기 위한 본 고안은, 가선전압이 차단되면 소정 시간동안 밧데리가 보조전원을 제공하되, 상기 소정시간이 지나면 밧데리 접촉기가 소자되어 밧데리 전원을 차단시키도록 된 철도차량의 전원공급장치에 있어서, 상기 밧데리의 전압값을 검출하여 밧데리전원의 전압이 소정 기준전압 이하인 경우에 여자되는 저전압 검출 계전기와 상기 저전압검출 계전기가 여자되면, 이에 따라 소자되어 상기 밧데리전원의 방전을 차단하는 상기 밧데리 접촉기를 구비하는 것을 특징으로 한다.The present invention for achieving the above object, the power supply of the railway vehicle to provide a secondary power supply for the battery for a predetermined time when the wire voltage is cut off, the battery contactor element is cut off after the predetermined time has passed In the supply apparatus, when the low voltage detection relay and the low voltage detection relay are excited when the voltage value of the battery is detected and the voltage of the battery power supply is lower than or equal to a predetermined reference voltage, the device is configured to block the discharge of the battery power supply. Characterized in that the battery contactor.
상기와 같이 구성된 본 고안은, 철도차량의 가선전원이 단전 또는 차량기기의 이상 등에 의해 보조 전원장치에 전원이 인가되지 않는 경우 밧데리전원의 저전압을 자동적으로 감지하여 계속적인 방전을 차단함으로써 밧데리전원의 수명을 연장할 수 있게 된다.The present invention configured as described above, when the power supply of the railway vehicle is not applied to the auxiliary power supply due to power failure or abnormality of the vehicle equipment, automatically detects the low voltage of the battery power supply and interrupts the continuous discharge of the battery power supply. It can extend the life.
이하, 첨부한 예시도면을 참고하여 본 고안에 따른 실시예를 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 고안에 따른 전동차의 밧데리 전원 저전압 감지회로를 도시한 회로도이다. 여기서, 상기 감지회로는 전동차에 사용되는 밧데리전원이 가선전원의 단선 또는 차량기기의 이상 등에 의해 밧데리전원의 전압이 설정 전압(즉, 기준전압) 이하인 경우에 여자되는 저전압 검출 계전기(BLVD) 계전기가 여자되면 이에 따라 소자되어 밧데리에 연결되는 전원선을 차단하는 밧데리 접촉기(Batk)를 구비하여, 밧데리의 전압이 설정전압 이하시 밧데리 접촉기(BatK)의 접점이 오프 상태로 되어 밧데리 전원의 방전이 차단된다.1 is a circuit diagram illustrating a battery power low voltage detection circuit of an electric vehicle according to the present invention. Here, the sensing circuit includes a low voltage detection relay (BLVD) relay that is excited when the battery power used in the electric vehicle is below the set voltage (ie, the reference voltage) due to disconnection of the wire power supply or an abnormality of the vehicle equipment. A battery contactor (Batk) is provided to cut off the power line connected to the battery when it is excited, and when the voltage of the battery is lower than the set voltage, the contact of the battery contactor (BatK) is turned off so that the discharge of the battery power is blocked. do.
먼저, 밧데리전원(Bat)으로부터 출력되는 전압은 전원선(50)에도 나타나는 바, 전원선(50)의 전압이 기준전압, 예컨대, 약 70V로 설정한 전압보다 낮게 되면, 저전압 검출 계전기(BLVD)가 여자된다. 상기저전압 검출 계전기(BLVD)가 여자됨으로써 BLVD계전기의 b접점이 오프상태로 되어 전원(50)이 BATKN2차단기와, 밧데리 접촉기(BatK) 및, BLVD계전기의 b접점으로 이루어진 회로로 인가되지 않게 된다. 따라서, 밧데리 접촉기(BatK)가 소자되어 상기 밧데리 접촉기(BatK)의 접점의 오프상태로 되고, 이에 따라 밧데리 전원(Bat)의 방전이 차단되게 된다.First, the voltage output from the battery power source Bat also appears on the power supply line 50. When the voltage of the power supply line 50 becomes lower than the reference voltage, for example, the voltage set to about 70 V, the low voltage detection relay BLVD Become a woman. When the low voltage detection relay BLVD is excited, the contact b of the BLVD relay is turned off so that the power supply 50 is not applied to the circuit consisting of the BATKN2 circuit breaker, the battery contactor BatK, and the contact b of the BLVD relay. Therefore, the battery contactor BatK is demagnetized, and the contact point of the battery contactor BatK is turned off, whereby the discharge of the battery power source Bat is interrupted.
제2도는 밧데리전원의 전압에 대한 저전압검출 계전기(BLVD)와 판토그라프(PANDR)계전기의 출력전압과의 관계를 나타낸 도면으로, 먼저 판토그라프가 하강되어 판토그라프(PANDR)계전기(도시되지 않음)가 여자되는 경우, 밧데리전원(Bat)의 전압이 지령전압(70V)과 60V간의 전압이면(제1구간), 저전압검출 계전기(BLVD)는 온상태로 되어 10V이하의 전압까지 온상태로 된다.2 is a view showing the relationship between the output voltage of the low voltage detection relay (BLVD) and the pantograph (PANDR) relay to the voltage of the battery power supply, first pantograph is lowered to the pantograph (PANDR) relay (not shown) When is excited, if the voltage of the battery power source Bat is a voltage between the command voltage 70V and 60V (first section), the low voltage detection relay BLVD is turned on and is turned on to a voltage of 10V or less.
이후, 밧데리전원(Bat)의 전압이 60V 이하로 되게 되면(제2구간), 상기 저전압검출 계전기(BLVD)는 타이머와 관계없이 오프 상태로 되어 전압이 차단되게 된다. 그리고, 밧데리전원(Bat)의 전압이 다시 60V 이상의 전압이 되면(제3구간) 상기 저전압검출(BLVD) 계전기는 30초 돈안 온상태로 되고, 30초가 경과되어도 70V의 전압이 되지 않으면(제4구간) 다시 오프상태로 되게 된다.Thereafter, when the voltage of the battery power source Bat becomes 60 V or less (second section), the low voltage detection relay BLVD is turned off regardless of the timer and the voltage is cut off. When the voltage of the battery power source Bat becomes a voltage of 60 V or more again (third section), the low voltage detection (BLVD) relay is turned on for 30 seconds and does not become a voltage of 70 V even after 30 seconds have elapsed (fourth). Section) is turned off again.
다음에, 밧데리전원(Bat)의 전압이 70V 이상이 되면(제5구간) 상기 BLVD계전기는 타이머와 관계없이 온상태로 되고, 밧데리전원(Bat)의 전압이 다시 70V 이하로 되면(제6구간) 30초 동안 온상태로 되게 된다.Next, when the voltage of the battery power source Bat becomes 70V or more (5th section), the BLVD relay turns on regardless of the timer, and when the voltage of the battery power source Bat becomes 70V or less again (6th section) ) Will be turned on for 30 seconds.
이후, 밧데리전원(Bat)의 전압이 30초가 경과되어도 70V의 전압이 되지 않으면(제7구간), 상기 BLVD계전기는 오프상태로 되어 전압이 차단되게 된다.Thereafter, even if the voltage of the battery power source Bat does not reach 70V even after 30 seconds has elapsed (seventh section), the BLVD relay is turned off to cut off the voltage.
다음에, PANDR계저기다 소자됨과 더불어 밧데리전원(Bat)의 전압이 45초가 경과되어도 70V의 전압이 되지 않으면(제9구간), 상기 BLVD계전기는 오프상태로 되어 전압이 차단되게 된다.Next, if the PANDR base is demagnetized and the voltage of the battery power source Bat does not reach a voltage of 70V even after 45 seconds has elapsed (section 9), the BLVD relay is turned off and the voltage is cut off.
여기서, 상기 BLVD계전기의 동작전후 시 30초 또는 45초 동안 여유를 주는 것은 전압이 그 경계선에 있는 경우, 상기 BLVD계전기의 동작이 온상태 또는 오프 상태를 반복 수행하게 되어 상기 BLVD계전기 뿐만 아니라 차량에도 손실이 발생하게 되는 것을 방지하기 위한 것이다.In this case, when the voltage is at the boundary line, the operation of the BLVD relay repeatedly performs the on state or the off state when the voltage is at the boundary line, before and after the operation of the BLVD relay. This is to prevent the loss from occurring.
한편, 자동(AUTO)모드의 고장시에 수동(MANUAL)모드의 조작이 가능하도록 토글스위치가 설치되게 된다.On the other hand, a toggle switch is provided to enable the manual mode operation in the event of a failure of the AUTO mode.
이상 설명한 바와 같이 본 고안에 의하면, 철도차량의 가선전원이 단전 또는 차량기기의 이상 등에 의해 보조전원장치에 전원이 인가되지 않는 경우, 밧데리전원의 저전압을 저동적으로 감지하여 계속적인 방전을 차단함으로써 밧데리전원의 수명을 연장할 수 있게 된다.As described above, according to the present invention, when the power supply of the railway vehicle is not applied to the auxiliary power supply due to power failure or an abnormality of the vehicle equipment, the low voltage of the battery power supply is sensed dynamically and the continuous discharge is cut off. It can extend the life of battery power.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950054926U KR200143076Y1 (en) | 1995-12-30 | 1995-12-30 | Low-voltage detect circuit for battery power of a car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950054926U KR200143076Y1 (en) | 1995-12-30 | 1995-12-30 | Low-voltage detect circuit for battery power of a car |
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| Publication Number | Publication Date |
|---|---|
| KR970047497U KR970047497U (en) | 1997-07-31 |
| KR200143076Y1 true KR200143076Y1 (en) | 1999-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950054926U KR200143076Y1 (en) | 1995-12-30 | 1995-12-30 | Low-voltage detect circuit for battery power of a car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100788344B1 (en) * | 2001-09-19 | 2008-01-02 | 매그나칩 반도체 유한회사 | A circuit for detecting of voltage |
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