KR200375646Y1 - Circuit protected safety mode for driving blow-motor for automobile - Google Patents
Circuit protected safety mode for driving blow-motor for automobile Download PDFInfo
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- KR200375646Y1 KR200375646Y1 KR20-2004-0032762U KR20040032762U KR200375646Y1 KR 200375646 Y1 KR200375646 Y1 KR 200375646Y1 KR 20040032762 U KR20040032762 U KR 20040032762U KR 200375646 Y1 KR200375646 Y1 KR 200375646Y1
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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
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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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
- H02H7/08—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
- H02H7/0833—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 for electric motors with control arrangements
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- Control Of Direct Current Motors (AREA)
Abstract
본 고안은 보호모드가 방지된 자동차용 블로워모터 구동회로에 관한 것으로, The present invention relates to a blower motor driving circuit for a vehicle in which the protection mode is prevented.
블로워모터, 모스에프이티, PNP형 트랜지스터(TR1)와 상기 PNP형 트랜지스터(TR1)의 베이스단에 일측이 연결된 저항(R1)을 포함한 구속방지스위치,Blower motor, MOSFET, PNP type transistor (TR1) and restraint switch including a resistor (R1) connected to one end of the base terminal of the PNP type transistor (TR1),
일측이 구동장치컨트롤러에 연결되고 타측이 모스에프이티의 게이트단과 연결된 저항(R2) 및 커패시터(C1)와 상기 저항(R2)의 양단에 베이스 및 이미터단자가 각각 연결되고 컬렉터단자가 상기 구속방지스위치에 연결된 트랜지스터(TR2)를 포함한 구속전류감지부를 포함하여 구성된 블로워 모터 구동장치에 있어서, 상기 트랜지스터(TR1)의 컬렉터단자와 일측이 연결된 저항(R3)과 상기 모스에프이티의 게이트단자에 컬렉터단이 연결된 NPN형트랜지스터(TR3)와 상기 트랜지스터(TR3)의 베이스단과 상기 저항(R3)의 일측에 각각 연결된 저항(R4)으로 이루어진 것을 특징으로 한다. 본 고안에 따르면 모터가 구속되는 즉시 모스에프이티의 동작을 차단하고, 구동장치컨트롤러를 리셋시켜 모터를 재가동하도록 함으로써, 불필요한 모스에프이티의 동작차단을 방지하는 효과가 있다. One side is connected to the drive controller and the other side is connected to the gate terminal of the MOSFET (R2) and the capacitor (C1) and both ends of the resistor (R2), respectively, the base and emitter terminals are connected to prevent the restraint A blower motor driving device including a restraint current sensing unit including a transistor TR2 connected to a switch, the collector terminal being connected to a collector terminal of the transistor TR1 and a resistor R3 connected to one side of the transistor terminal and a gate terminal of the MOSFET. The connected NPN transistor TR3 and the base terminal of the transistor TR3 and a resistor R4 connected to one side of the resistor R3, respectively. According to the present invention, as soon as the motor is restrained, the operation of the MoSFT is interrupted, and the driving device controller is reset to restart the motor, thereby preventing unnecessary operation of the MoSFT.
Description
본 고안은 보호모드가 방지된 자동차용 블로워모터 구동회로에 관한 것으로, 구체적으로는 자동차의 에어블로어(Air-Blower) 조절을 위해 블로워의 속도 조절을 수행하는 모터의 구속 발생시 모터의 동작을 정지시키고 구동장치컨트롤러를 리셋시켜 즉시 모터를 재가동하도록 하는 보호모드가 방지된 자동차용 블로워모터 구동회로에 관한 것이다. The present invention relates to a blower motor driving circuit for a vehicle in which the protection mode is prevented. Specifically, the motor stops the operation of the motor when the restraint of the motor that performs the speed control of the blower for controlling the air blower of the vehicle is performed. The present invention relates to a blower motor driving circuit for a vehicle in which a protection mode is prevented to reset the drive controller so that the motor is immediately restarted.
도 1은 종래기술(출원번호 2004-52386호)에 따른 자동차용 블로워모터 구동회로의 회로도이다. 도 1에서와 같이 종래기술(출원번호 2004-52386호)은 구동장치컨트롤러에 구속전류감지부(20)와 구속방지스위치(10)가 차례로 연결되고 구속방지회로(30)가 상기 구속전류감지부(20)와 구속방지스위치(10)와 각각 연결되며, 상기 구속방지스위치(10)와 구속방지회로(30)가 온도센서를 탑재한 모스에프이티(40)에 연결되도록 구성된다. 종래기술에서는 상기 모스에프이티(40)에 탑재된 온도센서에 의해 온도를 체크하고 일정온도 이상(모터구속) 상승시, 상기 구속방지회로(30)에서 모스에프이티(40)의 동작을 일정 시간동안 차단시킴(보호모드)으로써 모터(60)의 구동을 방지하는 기술이 개시되어 있다. 종래기술의 특징으로는 비구속상태에서도 모스에프이티(40)의 드레인단에 피크전압이 발생하는 경우, 모스에프이티(40)의 게이트단 저항값이 무한대가 되어 구속전류감지부(20)에 전류가 통하지 않아 구속방지스위치(10)를 온 시킬 수 없어 피크전압이 발생하더라도 블로워 모터는 정상 동작하도록 되어 있다. 1 is a circuit diagram of a blower motor driving circuit for a vehicle according to the prior art (application number 2004-52386). As shown in FIG. 1, in the prior art (application number 2004-52386), the restraint current sensing unit 20 and the restraint prevention switch 10 are sequentially connected to a driving device controller, and the restraint prevention circuit 30 is the restraint current sensing unit. It is connected to the 20 and the restraint switch 10, respectively, the restraint switch 10 and the restraint prevention circuit 30 is configured to be connected to the MoS F 40 equipped with a temperature sensor. In the related art, when the temperature is checked by the temperature sensor mounted on the MOSFET 40 and the temperature rises above a predetermined temperature (motor restraint), the operation of the MOSFET 40 is stopped by the restraint prevention circuit 30 for a predetermined time. The technique for preventing the drive of the motor 60 by blocking it during the protection (protection mode) is disclosed. As a characteristic of the prior art, when the peak voltage is generated at the drain terminal of the MOSFET F 40 even in a non-constrained state, the gate terminal resistance value of the MOSFET 40 becomes infinite and is applied to the restraint current detecting unit 20. The blower motor is operated normally even when the peak voltage is generated because current is not passed and the restraint switch 10 cannot be turned on.
하지만, 상기와 같은 방식은 모터의 구속 이후 정상상태가 되는 기간 이상 보호모드가 유지되어 불필요한 모터의 동작을 차단하는 문제가 발생한다. However, the above-described method causes a problem in that the protection mode is maintained for longer than the normal state after the motor is restrained to block unnecessary motor operation.
본 고안은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 모터가 구속되는 즉시 모스에프이티의 동작을 차단하고, 구동장치컨트롤러를 리셋시켜 즉시 모터를 재가동하도록 하는 보호모드가 방지된 자동차용 블로워모터 구동회로를 제공하는데 그 목적이 있다. The present invention was devised to solve the above problems, and the blower motor for which the protection mode is prevented to shut down the operation of the MOFTF immediately after the motor is restrained and reset the drive controller to immediately restart the motor. The purpose is to provide a driving circuit.
상기한 본 고안의 목적을 달성하기 위한 보호모드가 방지된 자동차용 블로워모터 구동회로는, Blower motor driving circuit for the vehicle prevented the protection mode for achieving the object of the present invention,
블로워모터, 모스에프이티, PNP형 트랜지스터(TR1)와 상기 PNP형 트랜지스터(TR1)의 베이스단에 일측이 연결된 저항(R1)을 포함한 구속방지스위치,Blower motor, MOSFET, PNP type transistor (TR1) and restraint switch including a resistor (R1) connected to one end of the base terminal of the PNP type transistor (TR1),
일측이 구동장치컨트롤러에 연결되고 타측이 모스에프이티의 게이트단과 연결된 저항(R2) 및 커패시터(C1)와 상기 저항(R2)의 양단에 베이스 및 이미터단자가 각각 연결되고 컬렉터단자가 상기 구속방지스위치에 연결된 트랜지스터(TR2)를 포함한 구속전류감지부를 포함하여 구성된 블로워 모터 구동장치에 있어서, 상기 트랜지스터(TR1)의 컬렉터단자와 일측이 연결된 저항(R3)과 상기 모스에프이티의 게이트단자에 컬렉터단이 연결된 NPN형트랜지스터(TR3)와 상기 트랜지스터(TR3)의 베이스단과 상기 저항(R3)의 일측에 각각 연결된 저항(R4)으로 이루어진 것을 특징으로 한다. 이때, 상기 저항(R3)은 20kΩ ~ 200㏀에서 설정되고, 저항(R4)는 1kΩ ~ 50㏀에서 설정됨이 바람직하겠다. One side is connected to the drive controller and the other side is connected to the gate terminal of the MOSFET (R2) and the capacitor (C1) and both ends of the resistor (R2), respectively, the base and emitter terminals are connected to prevent the restraint A blower motor driving device including a restraint current sensing unit including a transistor TR2 connected to a switch, the collector terminal being connected to a collector terminal of the transistor TR1 and a resistor R3 connected to one side of the transistor terminal and a gate terminal of the MOSFET. The connected NPN transistor TR3 and the base terminal of the transistor TR3 and a resistor R4 connected to one side of the resistor R3, respectively. At this time, it is preferable that the resistor R3 is set at 20 kΩ to 200 kΩ, and the resistor R4 is set at 1 kΩ to 50 kΩ.
이하, 첨부된 도면을 참조하여 본 고안의 바람직한 실시예에 대해 설명한다. Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.
도 2는 본 고안의 실시예에 따른 보호모드가 방지된 자동차용 블로워모터 구동회로를 나타낸 회로도이다. 2 is a circuit diagram illustrating a blower motor driving circuit for a vehicle in which a protection mode is prevented according to an embodiment of the present invention.
본 고안에 따른 보호모드가 방지된 자동차용 블로워모터 구동회로는 트랜지스터(TR2)의 컬렉터단자와 일측이 연결된 저항(R3)과 모스에프이티(40)의 게이트단자에 컬렉터단이 연결된 NPN형 트랜지스터(TR3)와 상기 트랜지스터(TR3)의 베이스단과 상기 저항(R3)의 일측에 각각 연결된 저항(R4)으로 구성된다.The blower motor driving circuit for a vehicle in which the protection mode is prevented according to the present invention is an NPN transistor in which a collector terminal is connected to a gate of a resistor (R3) connected to one side of a transistor (TR2) and a MOSFET (40) ( TR3) and a resistor R4 connected to the base terminal of the transistor TR3 and one side of the resistor R3, respectively.
상기와 같이 구성된 본 고안의 보호모드가 방지된 자동차용 블로워모터 구동회로의 구체적인 동작을 도 2와 도 3을 참조하여 설명하면 다음과 같다. The detailed operation of the blower motor driving circuit for a vehicle in which the protection mode of the present invention configured as described above is prevented will be described below with reference to FIGS. 2 and 3.
도 3은 모터구속시와 정상상태시 모스에프이티의 전압특성을 나타낸 도면이다. 구동장치컨트롤러(80)에서 신호가 인가되면 모스에프이티(40)가 온되어 블로워모터(60)가 정상적으로 구동하게 된다. 정상동작중에는 모스에프이티(40)의 게이트단자의 저항이 거의 무한대가 되어 전류가 거의 흐르지 않게되어 정상동작구간(3_1)의 게이트전압은 아주 작게 유지된다. 모터가 정상적으로 동작하다가 모스에프이티(40)에 내장된 온도센서에 의해 과열이 감지되어 모터구속상태(3_2)가 되면 모스에프이티(40)의 게이트단 저항은 약 100Ω으로 낮아져서 모스에프이티(40)의 게이트단에 전류가 유입되며, 저항(R2)의 양단에 약 0.7V이상의 전압이 걸리면 트랜지스터(TR2)가 온상태가 되어, 트랜지스터(TR1)를 온시키게 된다. 이에따라, 서로 다른 두개의 저항(R3,R4)에 따른 전압분배에 의해 트랜지스터(TR3)의 베이스-이미터전압이 0.7V이상이 되어 트랜지스터(TR3)가 온 됨으로써 모스에프이티(40)의 게이트단에 유입되는 전류를 차단하게 된다. 상기의 과정으로 모터구속시 모스에프이티(40)의 동작은 즉시 차단되고 모터(60)를 보호하게 된다. 상기 트랜지스터(TR3)의 컬렉터-이미터간에는 포화전압(0.3V)이 형성되어 있고, 저항(R2)의 양단에 걸리는 전압보다 낮으므로 트랜지스터(TR1)는 온상태를 유지하게 되어 모스에프이티(40)의 동작을 지속적으로 차단시키게 된다. 따라서 구동장치컨트롤러(80)를 리셋시켜 트랜지스터(TR2)를 오프시킴으로써 모터는 정상동작 할 수 있게 된다. FIG. 3 is a diagram illustrating voltage characteristics of MOSFETs when the motor is locked and in a steady state. FIG. When a signal is applied from the driving device controller 80, the MOSFET F 40 is turned on so that the blower motor 60 is normally driven. During the normal operation, the resistance of the gate terminal of the MOSFET 40 becomes almost infinite so that the current hardly flows, so that the gate voltage of the normal operation section 3_1 is kept very small. When the motor operates normally and overheating is sensed by the temperature sensor built in the MOFT 40 and the motor is in a restraint state 3_2, the gate end resistance of the MOFT 40 is lowered to about 100 Ω and the MOFT 40 is maintained. When a current flows into the gate terminal of the circuit) and a voltage of about 0.7 V or more is applied to both ends of the resistor R2, the transistor TR2 is turned on, thereby turning on the transistor TR1. As a result, the base-emitter voltage of the transistor TR3 becomes 0.7 V or more due to the voltage distribution according to the two different resistors R3 and R4, and the transistor TR3 is turned on so that the gate terminal of the MOSFET 40 is turned on. It cuts off the current flowing in. In the above process, when the motor is locked, the operation of the MOFT 40 is immediately blocked and protects the motor 60. Since the saturation voltage (0.3V) is formed between the collector and the emitter of the transistor TR3, and is lower than the voltage applied to both ends of the resistor R2, the transistor TR1 is kept in the on state, and the MOSFET 40 is maintained. ) Will continue to block. Therefore, the motor is able to operate normally by resetting the drive controller 80 to turn off the transistor TR2.
상기와 같이 동작하는 본 고안의 보호모드가 방지된 자동차용 블로워모터 구동회로에 의하면, 모터구속이후 짧은 시간(예를들어 5초)에 온도가 하강하여 정상상태가 되더라도 종래 모터구동장치의 보호모드에서 장시간(예를들어 20초) 모스에프이티(40)를 차단하게 되는 불필요한 동작을 방지하게 된다. According to the blower motor driving circuit for automobiles in which the protection mode of the present invention operating as described above is prevented, the protection mode of the conventional motor driving apparatus even when the temperature drops to a normal state in a short time (for example, 5 seconds) after the motor is locked. In the long time (for example, 20 seconds) to prevent unnecessary operation that will block the mosfight 40.
상기의 설명에서와 같이, 본 고안에 의한 보호모드가 방지된 자동차용 블로워모터 구동회로에 의하면, 모터가 구속되는 즉시 모스에프이티의 동작을 차단하고, 구동장치컨트롤러를 리셋시켜 모터를 재가동하도록 함으로써, 모터구동장치의 보호모드에 따른 불필요한 모스에프이티의 동작차단을 방지하는 효과가 있다. As described above, according to the blower motor driving circuit for automobiles, in which the protection mode according to the present invention is prevented, the MOS is stopped immediately after the motor is restrained, and the drive controller is reset to restart the motor. In addition, there is an effect of preventing unnecessary interruption of operation of the MOSF due to the protection mode of the motor drive device.
도 1은 종래기술(출원번호 2004-52386호)에 따른 자동차용 블로워모터 구동회로의 회로도,1 is a circuit diagram of a blower motor driving circuit for a vehicle according to the prior art (application number 2004-52386),
도 2는 본 고안의 실시예에 따른 보호모드가 방지된 자동차용 블로워모터 구동회로,2 is a blower motor driving circuit for a vehicle in which a protection mode is prevented according to an embodiment of the present invention;
도 3은 모터구속시와 정상상태시 모스에프이티의 전압특성을 나타낸 도면.3 is a diagram showing the voltage characteristics of MoS FTE when the motor is locked and in the steady state.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10 : 구속방지스위치 20 : 구속전류감지부10: restraint switch 20: restraint current detection unit
30 : 구속방지회로 40 : 모스에프이티30: restraint prevention circuit 40: Mosfight
60 : 블로워모터 70 : 보호모드 방지회로60: blower motor 70: protection mode prevention circuit
80 : 구동장치컨트롤러80: drive controller
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0032762U KR200375646Y1 (en) | 2004-11-19 | 2004-11-19 | Circuit protected safety mode for driving blow-motor for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0032762U KR200375646Y1 (en) | 2004-11-19 | 2004-11-19 | Circuit protected safety mode for driving blow-motor for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200375646Y1 true KR200375646Y1 (en) | 2005-03-11 |
Family
ID=43677450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2004-0032762U KR200375646Y1 (en) | 2004-11-19 | 2004-11-19 | Circuit protected safety mode for driving blow-motor for automobile |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200375646Y1 (en) |
-
2004
- 2004-11-19 KR KR20-2004-0032762U patent/KR200375646Y1/en not_active IP Right Cessation
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| T201 | Request for technology evaluation of utility model | ||
| T701 | Written decision to grant on technology evaluation | ||
| FPAY | Annual fee payment |
Payment date: 20120801 Year of fee payment: 8 |
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| LAPS | Lapse due to unpaid annual fee |