KR200183344Y1 - Wiper driving circuit - Google Patents
Wiper driving circuit Download PDFInfo
- Publication number
- KR200183344Y1 KR200183344Y1 KR2019970015014U KR19970015014U KR200183344Y1 KR 200183344 Y1 KR200183344 Y1 KR 200183344Y1 KR 2019970015014 U KR2019970015014 U KR 2019970015014U KR 19970015014 U KR19970015014 U KR 19970015014U KR 200183344 Y1 KR200183344 Y1 KR 200183344Y1
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- Prior art keywords
- terminal
- relay
- wiper
- transistor
- driving circuit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0814—Wipers or the like, e.g. scrapers characterised by the drive electrically driven using several drive motors; motor synchronisation circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
- H01H2003/266—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor having control circuits for motor operating switches, e.g. controlling the opening or closing speed of the contacts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S318/00—Electricity: motive power systems
- Y10S318/02—Windshield wiper controls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
본 고안은 와이퍼 구동회로에 관한 것으로, 종래 구동회로의 접점식 릴레이 작동시 개폐되는 단자사이의 높은 전위차로 발생되는 스파크현상을 제거하기 위해, 트랜지스터의 에미단에 전원(+)을 연결시키고 컬렉터단에 릴레이의 고정단자를 연결시켜 베이스단에 가해지는 바이어스전압을 제어함으로써, 릴레이의 수명연장과 구동회로의 오동작을 방지한 와이퍼 구동회로에 관한 것이다.The present invention relates to a wiper driving circuit, in order to eliminate the spark phenomenon caused by the high potential difference between the terminals that are opened and closed during the operation of the contact type relay of the conventional driving circuit, to connect the power supply (+) to the end of the transistor and the collector stage The present invention relates to a wiper drive circuit which prevents an extended life of a relay and a malfunction of a drive circuit by controlling a bias voltage applied to a base end by connecting a fixed terminal of the relay to the base terminal.
Description
본 고안은 와이퍼 구동회로에 관한 것으로서, 더욱 상세하게는 차량의 와이퍼모터 구동에 필요한 릴레이의 수명연장 및 오동작을 방지할 수 있도록 한 차량의 와이퍼 구동회로에 관한 것이다.The present invention relates to a wiper driving circuit, and more particularly, to a wiper driving circuit of a vehicle to prevent the life extension and malfunction of the relay required for driving the wiper motor of the vehicle.
통상적으로, 상용화된 각종 차량에는 와이퍼가 장착되어 있으며, 이러한 와이퍼는 운전자의 수동조작에 의해 우천시 등 운전중에 사용되고 있었다.In general, various commercialized vehicles are equipped with wipers, and these wipers have been used during driving, such as during rainy weather, by a manual operation of a driver.
한편, 상기 와이퍼를 좌우로 작동시키는 와이퍼모터는 전자석에 의해 동작되는 접점식 릴레이에 의해 작동되었다.On the other hand, the wiper motor for operating the wiper from side to side was operated by a contact relay operated by an electromagnet.
도1는 종래의 와이퍼 구동회로를 도시한 것으로, 입력단을 통해 각 신호를 입력받아 출력단을 통해 제어신호를 출력하는 마이컴(10)과, 이 마이컴(10)으로 부터 출력된 제어신호의 전원을 분리하는 포토커플러(PC1,PC2,PC3) 및 트랜지스터어레이(20)와, 상기 분리된 전원에 의거하여 제1·2릴레이(RY1,RY2)의 작동으로 구동되는 와이퍼모터(M)로 구성되어 있었다.1 illustrates a conventional wiper driving circuit, in which a microcomputer 10 for receiving each signal through an input terminal and outputting a control signal through an output terminal is separated from a power supply of the control signal output from the microcomputer 10. The photocoupler (PC1, PC2, PC3) and the transistor array 20, and the wiper motor (M) driven by the operation of the first and second relays (RY1, RY2) based on the separated power supply.
이와 같이 구성된 종래의 와이퍼 구동회로는, 먼저 사용자가 와이퍼스위치를 임의의 모드로 조작하면, 마이컴(10)의 입력단에 신호가 보내지고, 마이컴(10)은 이 신호에 의거하여 제어신호를 출력한다.In the conventional wiper drive circuit configured as described above, when the user first operates the wiper switch in an arbitrary mode, a signal is sent to the input terminal of the microcomputer 10, and the microcomputer 10 outputs a control signal based on the signal. .
그런 다음, 이 제어신호는 포토커플러(PC1,PC2,PC3)를 통과하면서 분리되어 트랜지스터어레이(20)의 각 입력단에 입력된다. 그리고, 트랜지스터어레이(20)로부터 출력된 제어신호는 제1·2릴레이(RY1,RY2)를 구동시키게 된다.Then, this control signal is separated while passing through the photocouplers PC1, PC2, and PC3 and input to each input terminal of the transistor array 20. The control signal output from the transistor array 20 drives the first and second relays RY1 and RY2.
따라서, 와이퍼스위치의 조작에 의해 동작모드가 설정되면 마이컴(10)의 입력단에 신호가 보내지고, 이 신호는 마이컴(10)에 미리 설정된 프로그램에 의해 출력단을 통해 출력되어 포토커플러(PC1,PC2,PC3) 및 트랜지스터어레이(20)를 경유하여 분리되고, 이 분리된 신호에 의해 먼저 제1릴레이(RY1)가 동작되어 접점단자가 고정단자에 접점됨에 따라, 제2릴레이(RY2)에 전원이 인가된다.Therefore, when the operation mode is set by the operation of the wiper switch, a signal is sent to the input terminal of the microcomputer 10, and this signal is output through the output terminal by a program set in advance in the microcomputer 10 to output photocouplers PC1, PC2, PC3) and the transistor array 20 are separated, and the first relay RY1 is operated by the separated signal first, so that power is applied to the second relay RY2 as the contact terminal contacts the fixed terminal. do.
상기와 같이, 제2릴레이(RY2)를 작동시켜 그의 접점단자를 와이퍼모터(M)의 단자(31,31',32,32')에 교차접점시킴으로써 와이퍼모터(M)가 정.역회전 되었다.As described above, the wiper motor M is rotated forward and backward by operating the second relay RY2 and cross-contacting its contact terminal with the terminals 31, 31 ', 32, and 32' of the wiper motor M. .
한편, 와이퍼스위치의 조작에 의해 정지모드로 설정되면 마이컴(10)의 입력단에 신호가 보내지고, 이미 마이컴(10)에 기억된 프로그램에 의해 출력단으로 출력되어 포토커플러(PC1,PC2,PC3) 및 트랜지스터어레이(20)를 경유하여 분리된 제어신호가 제1·2릴레이(RY1,RY2)의 구동을 정지시킴으로써, 와이퍼모터(M)의 회전이 정지되었다.On the other hand, when it is set to the stop mode by the operation of the wiper switch, a signal is sent to the input terminal of the microcomputer 10, and is output to the output terminal by a program already stored in the microcomputer 10 and the photocouplers PC1, PC2, PC3 and The control signal separated via the transistor array 20 stops the driving of the first and second relays RY1 and RY2, so that the rotation of the wiper motor M is stopped.
그러나, 상기 제1릴레이를 작동시켜 그의 접점단자를 고정단자에 접점시키는 순간 초기전원에 포함된 순간적인 전압과 접점단자를 고정단자에서 단락시키는 순간 와이퍼모터에 잔류하고 있는 전압이 고정단자에 유기되어 발생되는 두 단자 사이의 순간적인 전위차로 스파크가 발생되었다.However, when the first relay is operated to contact its contact terminal with the fixed terminal, the instantaneous voltage included in the initial power supply and the voltage remaining on the wiper motor are induced at the fixed terminal when the contact terminal is shorted at the fixed terminal. The spark occurred due to the instantaneous potential difference between the two terminals.
이에 따라, 스파크로 인한 구동회로의 오동작 및 릴레이의 수명을 단축시키는 문제점이 있었다.Accordingly, there is a problem of shortening the life of the relay and malfunction of the driving circuit due to the spark.
본 고안은, 이와 같은 종래의 문제점을 감안하여 안출한 것으로, 릴레이 구동에 의한 접점부위의 스파크 현상을 제거하여 릴레이의 수명연장과 구동회로의 오동작을 방지할 수 있는 와이퍼 구동회로를 제공하는데 그 목적이 있다.The present invention has been made in view of such a conventional problem, and provides a wiper driving circuit capable of preventing the extension of the life of the relay and the malfunction of the driving circuit by eliminating the spark phenomenon of the contact portion caused by the relay driving. There is this.
상기와 같은 본 고안의 목적은, 릴레이의 고정단자에 유입되는 전압을 조절할 수 있는 트랜지스터를 연결시켜 릴레이 구동에 의한 온·오프시 단자 사이에서 발생되는 스파크를 제거함으로써 달성된다.The object of the present invention as described above is achieved by connecting a transistor capable of adjusting the voltage flowing into the fixed terminal of the relay to remove the spark generated between the terminals when the relay is driven on and off.
도1은 종래의 회로도1 is a conventional circuit diagram
도2는 본 고안 실시예의 회로도2 is a circuit diagram of an embodiment of the present invention
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 마이컴 20 : 트랜지스터어레이10: microcomputer 20: transistor array
31,31',32,32' : 단자31,31 ', 32,32': Terminal
PC1,PC2,PC3 : 포토커플러 RY1,RY2 : 제1,2릴레이PC1, PC2, PC3: Photocoupler RY1, RY2: First, Second Relay
C1,C2,C3,C4,C5 : 콘덴서 R1,R2,R3,R4,R5 : 저항C1, C2, C3, C4, C5: Capacitors R1, R2, R3, R4, R5: Resistance
TR1 : 트랜지스터 D1,D2,D3 : 다이오드TR1: Transistor D1, D2, D3: Diode
이하, 본 고안 실시예의 와이퍼 구동회로를 첨부된 회로도에 의거하여 상세히 설명한다.Hereinafter, the wiper driving circuit according to the embodiment of the present invention will be described in detail with reference to the accompanying circuit diagram.
도2는 본 고안의 실시예에 의한 회로를 도시한 것으로, 마이컴(10), 포토커플러(PC1,PC2,PC3), 트랜지스터어레이(20), 제1·2릴레이(RY1,RY2), 와이퍼모터(M)로 구성된 종래의 와이퍼 구동회로에 있어서, 베이스단이 상기 트랜지스트어레이(20)에 연결된 저항(R5)에 연결되고 에미터단이 전원(+)에 연결되며 컬렉터단이 제1릴레이(RY1)의 고정단자에 연결된 트랜지스터(TR1)와, 상기 트랜지스터(TR1)의 컬렉터단에 각각 연결된 콘덴서(C5) 및 다이오드(D3)로 구성된 회로이다.2 illustrates a circuit according to an embodiment of the present invention, and includes a microcomputer 10, photocouplers PC1, PC2, and PC3, a transistor array 20, first and second relays RY1 and RY2, and a wiper motor. In the conventional wiper drive circuit composed of (M), the base end is connected to the resistor (R5) connected to the transistor array 20, the emitter end is connected to the power supply (+), the collector end is the first relay (RY1) The transistor TR1 connected to the fixed terminal of the transistor C1, and the capacitor C5 and diode D3 connected to the collector terminal of the transistor TR1, respectively.
이와 같이, 본 고안 실시예의 와이퍼 구동회로는, 먼저 와이퍼스위치의 조작에 의해 실행모드로 설정되면, 마이컴(10), 포토커플러(PC1,PC2,PC3) 및 트랜지스터어레이(20)를 통해 분리된 제어신호에 따라, 먼저 트랜지스터(TR1)의 베이스단에 바이어스전압이 가해져 에미터단을 통해 제1릴레이(RY1)의 고정단자로 전류가 흐르게 되고, 그 후 제1릴레이(RY1)가 온 되어 접점단자로 흐르는 전압과 고정단자로 유입되는 전압이 같아져, 전위차로 인한 스파크현상이 제거되며, 제2릴레이(RY2)의 접점단자에 안전된 전원이 인가되었다.As described above, the wiper drive circuit of the embodiment of the present invention is first set in the execution mode by the operation of the wiper switch, and is separated through the microcomputer 10, the photocouplers PC1, PC2, PC3, and the transistor array 20. According to the signal, first, a bias voltage is applied to the base terminal of the transistor TR1, and a current flows through the emitter terminal to the fixed terminal of the first relay RY1. Then, the first relay RY1 is turned on to the contact terminal. Since the flowing voltage is equal to the voltage flowing into the fixed terminal, the spark phenomenon due to the potential difference is eliminated, and a safe power source is applied to the contact terminal of the second relay RY2.
따라서, 와이퍼모터(M)의 정회전시에는 상기 제어신호에 의해 제2릴레이(RY2)의 접접단자에 접점된 와이퍼모터(M)의 단자(31)에는 전원(+)이 인가되고 단자(32')에는 전원(-)이 인가되었다.Therefore, during forward rotation of the wiper motor M, a power supply (+) is applied to the terminal 31 of the wiper motor M contacted to the contact terminal of the second relay RY2 by the control signal, and the terminal 32 ' ) Was supplied with power (-).
한편, 역회전시에는 먼저 제1릴레이(RY1)을 오프시키고, 그 다음 트랜지스터(TR1)를 오프시켜 전원공급을 중단시킨 후, 제2릴레이(RY2)를 온되게 한 후 먼저 트랜지스터(TR1)를 온시키고, 그 다음 제1릴레이(RY1)를 온시켜 제2릴레이(RY2)의 접점단자에 접점된 와이퍼모터(M)의 단자(31')에는 전원(-)이 인가되고 그의 단자(32)에는 전원(+)이 인가된다.On the other hand, in reverse rotation, the first relay RY1 is first turned off, and then the transistor TR1 is turned off to stop the power supply. Then, the second relay RY2 is turned on and the transistor TR1 is first turned on. On, the first relay RY1 is turned on, and then a power supply (-) is applied to the terminal 31 'of the wiper motor M contacted to the contact terminal of the second relay RY2, and the terminal 32 thereof. Power (+) is applied.
상기와 같이, 와이퍼모터(M)는 제2릴레이(RY2)의 작동에 의해 그의 접점단자가 와이퍼모터(M)의 단자(31,31',32,32')에 교차 접점시킴에 따라 정역회전하게 된다.As described above, the wiper motor M rotates forward and backward as its contact terminal cross-contacts the terminals 31, 31 ', 32, and 32' of the wiper motor M by the operation of the second relay RY2. Done.
이어서, 와이퍼스위치를 조작하여 정지모드로 설정되면, 마이컴(10),포토커플러(PC1,PC2,PC3) 및 트랜지스터어레이(20)를 통해 분리된 제어신호에 따라, 먼저 제1릴레이(RY1)를 오프시켜 고정단자에 접점되어있던 접점단자를 단락시킨 후, 트랜지스터(TR1)의 베이스단에 인가되는 바이어스전압을 정지시켜 그의 작동을 정지시키며, 그런 다음, 제2릴레이(RY2)를 오프시킴으로써 와이퍼모터(M)의 회전이 정지된다.Subsequently, when the wiper switch is set to the stop mode, the first relay RY1 is first applied according to the control signals separated through the microcomputer 10, the photocouplers PC1, PC2, and PC3 and the transistor array 20. After turning off the contact terminal, which has been in contact with the fixed terminal, the bias voltage applied to the base terminal of the transistor TR1 is stopped to stop its operation, and then the wiper motor is turned off by turning off the second relay RY2. Rotation of M is stopped.
이와 같은 본 고안의 와이퍼 구동회로는, 제1릴레이(RY1) 온시에는 먼저 트랜지스터(TR1)를 온시키고, 제1릴레이(RY1) 오프시에는 먼저 그를 오프되게 한 후 트랜지스터(TR1)를 오프되게 함으로서, 릴레이 단자 사이의 전위차로 발생되는 스파크현상이 제거되어 릴레이의 수명을 배가시키는 효과가 있다.In such a wiper drive circuit of the present invention, the transistor TR1 is first turned on when the first relay RY1 is turned on, and the transistor TR1 is turned off when the first relay RY1 is turned off first. In addition, the spark phenomenon caused by the potential difference between the relay terminals is eliminated, which has the effect of doubling the life of the relay.
또한, 와이퍼 구동회로의 오동작 발생을 제거하는 장점도 있다.In addition, there is an advantage of eliminating the occurrence of malfunction of the wiper drive circuit.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970015014U KR200183344Y1 (en) | 1997-06-20 | 1997-06-20 | Wiper driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970015014U KR200183344Y1 (en) | 1997-06-20 | 1997-06-20 | Wiper driving circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990001551U KR19990001551U (en) | 1999-01-15 |
| KR200183344Y1 true KR200183344Y1 (en) | 2000-07-01 |
Family
ID=19503596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019970015014U KR200183344Y1 (en) | 1997-06-20 | 1997-06-20 | Wiper driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200183344Y1 (en) |
-
1997
- 1997-06-20 KR KR2019970015014U patent/KR200183344Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990001551U (en) | 1999-01-15 |
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| FPAY | Annual fee payment |
Payment date: 20080313 Year of fee payment: 9 |
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| LAPS | Lapse due to unpaid annual fee |