KR920000664Y1 - Automatic opening & closing apparatus of duct for prohibiting of engine overheating - Google Patents

Automatic opening & closing apparatus of duct for prohibiting of engine overheating Download PDF

Info

Publication number
KR920000664Y1
KR920000664Y1 KR2019890017847U KR890017847U KR920000664Y1 KR 920000664 Y1 KR920000664 Y1 KR 920000664Y1 KR 2019890017847 U KR2019890017847 U KR 2019890017847U KR 890017847 U KR890017847 U KR 890017847U KR 920000664 Y1 KR920000664 Y1 KR 920000664Y1
Authority
KR
South Korea
Prior art keywords
duct
engine
temperature
resistor
comparator
Prior art date
Application number
KR2019890017847U
Other languages
Korean (ko)
Other versions
KR910009282U (en
Inventor
송한남
Original Assignee
삼성중공업 주식회사
김연수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사, 김연수 filed Critical 삼성중공업 주식회사
Priority to KR2019890017847U priority Critical patent/KR920000664Y1/en
Publication of KR910009282U publication Critical patent/KR910009282U/en
Application granted granted Critical
Publication of KR920000664Y1 publication Critical patent/KR920000664Y1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14Indicating devices; Other safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2037/00Controlling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

내용 없음.No content.

Description

엔진과열방지용 덕트자동개폐장치Duct automatic switchgear for preventing engine overheat

제1도는 본 고안에 따른 엔진과열방지용 덕크자동개폐장치의 회로구성을 나타낸 도면.1 is a view showing the circuit configuration of the automatic shut-off switch for overheating engine according to the present invention.

제2a도는 본 고안에 따른 엔진과열방지용 덕트자동개폐장치를 건설중장비에 적용한 경우를 설명하기 위한 도면.Figure 2a is a view for explaining the case of applying the engine overheating duct automatic opening and closing device for construction equipment according to the present invention.

제2b도는 본 고안에 따른 엔지과열방지용 덕트자동개폐장치의 주요구조를 확대해서 설명하기 위한 도면이다.Figure 2b is a view for expanding the main structure of the duct automatic opening and closing device for preventing engine overheating according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 기준온도전위설정부 2 : 온도감지부1: reference temperature potential setting part 2: temperature detection part

3 : 비교부 4 : 바이어스설정부3: comparison unit 4: bias setting unit

5 : 구동신호출력부 6 : 덕트제어구동부5: drive signal output part 6: duct control drive part

[산업상의 이용분야][Industrial use]

본 고안은 엔진과열방지용 덕트자동개폐장치에 관한 것으로, 특히 엔진의 운전시 감지되는 온도에 따라 덕트의 개폐장치를 제어하여 엔진의 효율을 증대시킬 수 있도록 된 엔진과열방지용 덕트자동개폐장치에 관한 것이다.The present invention relates to a duct automatic switchgear for preventing engine overheating, and more particularly, to a duct automatic switchgear for preventing overheating of an engine, which can increase the efficiency of the engine by controlling an opening and closing device of the duct according to a temperature sensed during operation of the engine. .

[종래의 기술 및 그 문제점][Traditional Technology and Problems]

종래부터 엔진의 회전력을 구동원으로 하는 장치에 있어서는 엔진의 운전시 발생되는 온도에 의해 엔진의 주변에 배치된 내열성이 약한 장비라던지 구성부품의 특성이 열화되거나 파괴되어 버리게 되므로, 엔진의 과열 방지대책으로서 여러가지 방법이 강구되고 있는 바, 그중에서 엔진이 탑재된 부위의 프레임에다 다수의 블레이드가 일정간격으로 배열된 공기유출입용 덕트구조를 형성해 줌으로써 엔진이 과열되는 상태를 방지해 주도록 된 방법이 소개되어 있다.Background Art [0002] Conventionally, in the apparatus which uses the rotational force of the engine as a driving source, since the temperature generated during operation of the engine causes the weak heat resistance equipment or the characteristics of components to be deteriorated or destroyed, the engine is prevented from overheating. Various methods have been taken. Among them, a method of preventing the engine from overheating is formed by forming an air duct structure for the air inlet / outlet in which a plurality of blades are arranged at regular intervals in the frame of the site where the engine is mounted. have.

그러나, 이러한 방법에서는 블레이드가 항상 개방된 상태로 되어 있기 때문에 대기온도와는 무관하게 엔진을 공냉시켜 주게되어 예컨대 대기온도가 낮은 경우에는 엔진의 효율이 저하된다는 결점이 있고, 또 엔진실 주위에 배치된 덕트로부터 엔진의 운전시 발생되는 소음이 외부로 전파되게 되므로 청각적 장애 등을 느낄 수 있게 되어, 덕트형상의 설계시 칫수의 제한을 받게 된다는 결점이 있었다.However, in this method, since the blade is always open, the engine is cooled by air irrespective of the ambient temperature. For example, when the ambient temperature is low, the engine efficiency is lowered. Since the noise generated during operation of the engine is propagated from the duct to the outside, it is possible to feel an auditory obstacle, etc., and there is a drawback that the size of the duct design is limited.

[고안의 목적][Purpose of designation]

이에 본 고안은 상기와 같은 결점을 해결하기 위해 이루어진 것으로, 엔진온도감지용 센서에 의해 감지되는 엔진온도에 따라 소형모터에 의해 덕트를 자동으로 개폐제어하여 엔진의 효율을 증대시킬 수 있는 엔진 과열방지용 덕트자동개폐장치를 제공하고자 함에 그 목적이 있다.The present invention has been made to solve the above-mentioned drawback, the engine overheating prevention that can increase the efficiency of the engine by automatically opening and closing the duct by the small motor according to the engine temperature detected by the sensor for sensing the engine temperature The purpose is to provide an automatic duct opening and closing device.

[고안의 구성][Composition of design]

상기한 목적을 달성하기 위해 본 고안에 따른 엔진과열방지용 덕트자동개폐장치는, 전원과 접지사이에 직렬 접속된 저항과, 기준전위가변용 가변저항, 상기 저항과 상기 기준전위가변용, 가변저항사이에 역방향접속된 제너다이오드 및, 콘덴서로 구성된 기준온도전위설정부와, 엔진의 온도를 감지하는 더미스터와, 저장 및, 콘덴서로 구성된 온도감지부, 상기 기준온도전위설정부의 출력신호와 상기 온도감지부의 출력신호를 비교하는 비교기와, 저항 및, 콘덴서로 구성된 비교부, 트랜지스터와, 저항, 제너다이오드 및, 콘덴서로 구성되어 상기 비교기에 동작전원을 공급해 주는 바이어스설정부, 저항과, 다이오드, 콘덴서 및, 구동용 트랜지스터로 구성되어 상기 비교부의 출력신호에 따라 덕트개방구동신호를 출력하는 구동신호출력부 및, 모터와, 릴레이 및, 전환 스위치로 구성되어 상기 구동신호출력부의 출력신호에 의해 모터의 회전방향이 제어되어 덕트를 개폐제어하는 덕트제어구동부로 구성된 것을 특징으로 한다.In order to achieve the above object, the duct automatic switching device for preventing overheating of an engine according to the present invention includes a resistor connected in series between a power source and a ground, a variable resistance for variable reference potential, and a variable resistance for variable resistance between the resistor and the reference potential. A reference temperature potential setting unit composed of a zener diode and a condenser connected to the reverse direction, a dummyster for sensing an engine temperature, a temperature sensing unit consisting of a storage and a capacitor, and an output signal of the reference temperature potential setting unit and the temperature sensing unit A comparator for comparing the negative output signal, a comparator comprising a resistor and a capacitor, a transistor, a resistor, a zener diode and a bias setter for supplying operating power to the comparator, a resistor, a diode, a capacitor and A driving signal output unit and a motor configured to include a driving transistor for outputting a duct opening driving signal according to the output signal of the comparing unit; Ray and, consists of a change-over switch is characterized in that the duct is configured to control the driving unit for the control rotation direction of the motor is controlled to open and close the duct by the output signal of the output drive signal.

[작용][Action]

상기와 같이 구성된 본 고안에 따른 엔진과열방지용 덕트자동개폐장치에 의하면, 엔진의 온도를 감지해서 소정치 이상인 경우에만 모터의 회전방향을 제어하여 덕트를 개방시키게 되므로 엔진의 효율이 상승하게 된다.According to the duct automatic opening and closing device for preventing overheating of the engine according to the present invention configured as described above, the efficiency of the engine is increased because the duct is opened by controlling the rotation direction of the motor only when the temperature of the engine is sensed.

[실시예]EXAMPLE

이하, 도면을 참조하여 본 고안에 따른 엔진과열방지용 덕트자동계폐장치에 대해 상세히 설명한다.Hereinafter, with reference to the drawings will be described in detail with respect to the engine overheating duct automatic closing device according to the present invention.

제1도는 본 고안에 따른 엔진과열방지용 덕트자동개폐장치의 회로구성을 나타낸 도면으로, 저항(Rl, R2)과 기준온도를 가변설정하기 위한 가변저항(VR1) 및 제너다이오드(ZD1)에 의해 형성되는 기준전위신호가 일단 콘덴서(C1)에 충전되고, 이 콘덴서(C1)의 충전이 완료되면 기준온도 전위설정신호로서 비교부(3)에 구비된 비교기(OP1)의 일측 입력단에 인가된다. 이때 이 비교기(OP1)의 다른 입력단에는 도시되지 않은 엔진의 운전시 발생되는 온도가 더미스터(TH1)에 의해 감지되어 엔진의 온도신호로서 입력된다. 따라서, 상기 비교기(OP1)는 기준온도전위설정신호와 엔진의 온도신호를 비교해서 엔진의 온도신호가 기준온도전위설정신호보다 높은 경우에는 하이레벨의 신호를 출력하는 반면 낮은 경우에는 로우레벨의 신호를 출력하게 된다. 여기서, 상기 비교기(OP1)는 저항(R7)과 제너다이오드(ZD2)에 의해 베이스바이어스가 설정되는 트랜지스터(TR1)의 출력신호를 인가받아 그 동작바이어스가 설정됨으로써 상기한 비교동작을 수행하게 된다.1 is a view showing the circuit configuration of the automatic overheating duct opening and closing device for engine overheating according to the present invention, formed by a variable resistor (VR1) and zener diode (ZD1) for varying the resistance (Rl, R2) and the reference temperature The reference potential signal to be applied is once charged in the capacitor C1, and when the charging of the capacitor C1 is completed, it is applied to one input terminal of the comparator OP1 provided in the comparator 3 as the reference temperature potential setting signal. At this time, the temperature generated during operation of the engine (not shown) is sensed by the dummyster TH1 at the other input terminal of the comparator OP1 and is input as the temperature signal of the engine. Accordingly, the comparator OP1 compares the reference temperature potential setting signal with the temperature signal of the engine and outputs a high level signal when the engine temperature signal is higher than the reference temperature potential setting signal, while the low level signal is low. Will print Here, the comparator OP1 receives the output signal of the transistor TR1 whose base bias is set by the resistor R7 and the zener diode ZD2 and sets the operation bias to perform the comparison operation.

이어, 상기 비교기(OP1)의 출력은 저항(R5)의 콘덴서(C3) 및 다이오드(D2)를 매개해서 구동용 트랜지스터(TR2)에 인가되는데, 이 경우 상기 구동용 트랜지스터(TR2)는 상기 비교기(OP1)의 출력이 하이레벨인 경우에만 턴온되고, 트랜지스터(TR2)가 턴온된 상태에서의 하이레벨출력이 덕트제어구동부(6)에 인가된다.Subsequently, the output of the comparator OP1 is applied to the driving transistor TR2 via the capacitor C3 and the diode D2 of the resistor R5. In this case, the driving transistor TR2 is the comparator ( It is turned on only when the output of OP1 is high level, and the high level output while the transistor TR2 is turned on is applied to the duct control driver 6.

여기서, 이 덕트제어구동부(6)에 구비된 릴레이(RY1)와 전환스위치(SW1)는 상호 역전환연동작용하도록 되어 있으면서, 통상은 릴레이(RY1)의 공통접속자(COM)가 접지측 단자(NC)에 접속되어 있는 반면, 상기 전환스위치(SW1)의 공통접속자(COM)의 전원(B)측 단자(NC)에 접속되어 있어 모터(M)에 대해 전원(B)의 동작전압이 인가되는 폐회로를 구성하게 되므로 모터(M)는 예컨대 정방향으로 회전하여 후술하는 바와같이 덕트(DT)를 닫힌 상태로 유지시켜 주게 된다.Here, the relay RY1 and the changeover switch SW1 provided in the duct control driver 6 are in reverse switching interlocking operation, and the common connector COM of the relay RY1 is normally connected to the ground terminal NC. Is connected to the power supply B side terminal NC of the common connector COM of the changeover switch SW1, and the operating voltage of the power supply B is applied to the motor M. Since the motor (M) is rotated in the forward direction, for example, to maintain the duct (DT) in a closed state as will be described later.

이러한 상태에서, 상기 비교기(OP1)에서 출력되는 엔진의 과열에 따른 하이레벨의 신호에 의해 상기 구동용 트랜지스터(TR2)가 턴온되는 경우에는 그 트랜지스터(TR2)의 에미터출력이 릴레이(RY1)의 코일(CL1)에 인가되므로 코일(CL1)이 자화되게 되고, 이에 따라 릴레이(RY1)의 공통접속자(COM)는 트랜지스터(TR2)의 출력측 즉 전원(B)측 단자(NO)로 전환접속되는 반면 전환스위치(SW1)의 공통접속자(COM)가 접지측 단자(NO)로 전환접속됨으로써 모터 (M)는 역회전하게 되어 후술하는 바와같이 덕트 (DT)를 열어주게 된다.In this state, when the driving transistor TR2 is turned on by a high level signal corresponding to overheating of the engine output from the comparator OP1, the emitter output of the transistor TR2 is set to the relay RY1. Since the coil CL1 is magnetized since it is applied to the coil CL1, the common connector COM of the relay RY1 is switched to the output side of the transistor TR2, that is, the power supply B side terminal NO. When the common connector COM of the selector switch SW1 is switched to the ground terminal NO, the motor M is rotated in reverse to open the duct DT as described later.

다음으로, 제2a도와 제2b도를 참조해서 덕트의 구조 및 개폐동작에 관해 설명한다.Next, the structure and opening / closing operation of the duct will be described with reference to FIGS. 2A and 2B.

먼저, 제2a도는 본 고안에 따른 엔진과열방지용 덕트자동개폐장치를 건설중장비에 적용한 엔지실 부근의 프레임에 덕트(DT)가 설치되는 형태를 설명하기 위한 도면이고, 제2b도는 엔진과열방지용 덕트자동개폐장치의 주요구조를 확대해서 나타낸 도면이다. 제2a도에 도시된 바와같이 건설중장비의 엔진실 프레임의 일부를 절개한 다음, 제2b도에 도시된 바와같이 수직이동시 가능한 연결축(AX)에 일정한 간격으로 배열되면서 모터의 회전축(HR)에 고정된 구동풀리(FL)의 회전에 따라 개폐제어동작되는 다수의 블레이드(BL)가 설치된 덕트구조를 구성해 줌으로써 엔진의 온도에 따라 덕트를 자동으로 개폐시킬수 있게 된다.First, Figure 2a is a view for explaining the form in which the duct (DT) is installed in the frame near the engine room applied to the engine overheating prevention duct automatic opening and closing device according to the present invention, Figure 2b is the engine overheating prevention duct automatic It is an enlarged view showing the main structure of the switchgear. As shown in FIG. 2a, a part of the engine compartment frame of the heavy equipment is cut and then arranged at regular intervals on the connecting axis AX, which is vertically movable, as shown in FIG. 2b. By forming a duct structure in which a plurality of blades BL, which are opened and closed, are controlled according to the rotation of the fixed drive pulley FL, the duct can be automatically opened and closed according to the engine temperature.

여기서, 상기 제2b도에 도시된 덕트의 주요구조에 대해 좀더 구체적으로 설명하자면, 상기 제1도의 덕트 제어구동부(6)에 구비된 모터(M)가 예컨대 정회전하는 경우에는 그 모터(M)의 회전축(HR)에 장착된 구동풀리(FL)가 화살표 “b”방향으로 회전하게 되어 벨트(BT)에 매달린 연결축(AX)이 상방향으로 상승이동하게 되므로 모든 블레이드(BL)가 닫히게 되는 반면, 엔진의 온도가 높다고 판별되어 상기 제1도의 구동용 트랜지스터(TR2)가 턴온되는 경우에는 상기 릴레이(RYI)의 코일(CL1)이 자화됨에 따라 모터(M)의 회전방향이 전환되게 되고, 이에 따라 상기 구동풀리(FL)가 화설표 “a”방향으로 회전하게 되어 연결축(AX)의 벨트(BT)가 길어지게 되므로 연결축(Ax)이 수직하강이동하게 됨에 따라 블레이드(BL)가 모두 열려지게 되어 엔진실의 온도가 낮아질 수 있게 된다.Here, the main structure of the duct shown in FIG. 2B will be described in more detail. When the motor M provided in the duct control driving unit 6 of FIG. 1 rotates forward, for example, Since the driving pulley FL mounted on the rotation shaft HR rotates in the direction of arrow “b”, the connecting shaft AX suspended on the belt BT is moved upward, and thus all the blades BL are closed. When the driving transistor TR2 of FIG. 1 is turned on because the engine temperature is high, the rotation direction of the motor M is switched as the coil CL1 of the relay RRY is magnetized. Accordingly, since the driving pulley FL rotates in the direction of the arrow “a”, the belt BT of the connecting shaft AX becomes long, so that the blade BL moves as the connecting shaft Ax moves vertically downward. To open the engine compartment All.

[고안의 효과][Effect of design]

이상 설명한 바와같이 본 고안에 따른 엔진과열방지용 덕트자동개폐장치에 의하면, 엔진의 온도를 감지해서 소정치이상의 온도로 판별되는 경우에만 덕트를 자동으로 개폐시켜 주게 되므로 엔진의 효율을 증진시킬 수 있고, 또 덕트구조의 형상(칫수)에 대한 제약사항도 완화시킬수 있게 됨으로 엔진의 회전력을 구동원으로 하는 장치전체의 사용효율을 증진시킬 수 있게 된다.As described above, according to the engine overheating prevention opening and closing device for preventing overheating according to the present invention, it is possible to improve the efficiency of the engine because it automatically opens and closes the duct only when it senses the temperature of the engine and is determined to be above a predetermined value. In addition, the restrictions on the shape (dimensions) of the duct structure can be relaxed, so that the efficiency of use of the entire apparatus using the rotational force of the engine as a driving source can be improved.

Claims (1)

전원(B)과 접지사이에 직렬접속된 저항(Rl, R2)과, 기준전위가변용 가변저항(VR1), 상기 저항(Rl, R2)과 상기 기준전위가변용 가변저항(VR1)사이에 역방향접속된 제너다이오드(ZD1) 및, 콘덴서(C1)로 구성된 기준온도전위설정부(1)와, 엔진의 온도를 감지하는 더미스터(TH1)와, 저항(R3) 및, 콘덴서(C2)로 구성된 온도감지부(2), 상기 기준온도전위설정부(1)의 출력신호와 상기 온도감지부(2)의 출력신호를 비교하는 비교기(OP1)와, 저항(R4) 및, 콘덴서(C4)로 구성된 비교부(3), 트랜지스터(TR1)와, 저항(R7), 제너다이오드(ZD2)및, 콘덴서(C5)로 구성되어 상기 비교기(OP1)에 동작전원을 공급해 주는 바이어스설정부(4), 저항(R5, R6)과, 다이오드(D2), 콘덴서(C3) 및, 구동용 트랜지스터(TR2)로 구성되어 상기 비교부(3)의 출력 신호에 따라 덕트개방구동신호를 출력하는 구동신호출력부(5) 및 모터(M), 릴레이(R1), 및 전환스위치(SW1)로 구성되어 상기 구동신호출력부(5)의 출력신호에 의해 상기 모터(M)의 회전방향이 제어되어 덕트(DT)를 개폐제어하는 덕트제어구동부(6)로 구성된 것을 특징으로 하는 엔진과열방지용 덕트자동개폐장치.Reverse direction between the resistors Rl and R2 connected in series between the power supply B and the ground, the variable resistance VR1 for reference potential variable, the resistors Rl and R2, and the variable resistance VR1 for reference reference variable variable. A reference temperature potential setting section 1 composed of a connected zener diode ZD1 and a condenser C1, a dummyster TH1 for sensing an engine temperature, a resistor R3, and a condenser C2 With a comparator (OP1), a resistor (R4), and a capacitor (C4) for comparing the output signal of the temperature sensing unit (2), the reference temperature potential setting unit (1) and the output signal of the temperature sensing unit (2) Comprising a comparator 3, a transistor (TR1), a resistor (R7), a zener diode (ZD2), and a capacitor (C5) configured to supply an operating power to the comparator (OP1) 4, A drive signal output section comprising a resistor (R5, R6), a diode (D2), a capacitor (C3), and a drive transistor (TR2) to output a duct opening drive signal in accordance with the output signal of the comparison section (3). (5) And a motor (M), a relay (R1), and a switching switch (SW1), the rotation direction of the motor (M) is controlled by the output signal of the drive signal output unit (5) to open and close the duct (DT). Duct automatic opening and closing device for preventing the engine overheating, characterized in that consisting of a duct control driving unit for controlling (6).
KR2019890017847U 1989-11-30 1989-11-30 Automatic opening & closing apparatus of duct for prohibiting of engine overheating KR920000664Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890017847U KR920000664Y1 (en) 1989-11-30 1989-11-30 Automatic opening & closing apparatus of duct for prohibiting of engine overheating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890017847U KR920000664Y1 (en) 1989-11-30 1989-11-30 Automatic opening & closing apparatus of duct for prohibiting of engine overheating

Publications (2)

Publication Number Publication Date
KR910009282U KR910009282U (en) 1991-06-28
KR920000664Y1 true KR920000664Y1 (en) 1992-01-20

Family

ID=19292515

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890017847U KR920000664Y1 (en) 1989-11-30 1989-11-30 Automatic opening & closing apparatus of duct for prohibiting of engine overheating

Country Status (1)

Country Link
KR (1) KR920000664Y1 (en)

Also Published As

Publication number Publication date
KR910009282U (en) 1991-06-28

Similar Documents

Publication Publication Date Title
US4469053A (en) Automotive electric fan controlling device
KR920000664Y1 (en) Automatic opening & closing apparatus of duct for prohibiting of engine overheating
JPS5613216A (en) Ventilation control method and device for car
JPS56151830A (en) Blower fan speed controlling device for air conditioner
KR950019528A (en) Discharge port switchgear of air conditioner and its opening and closing method
JPS6164520A (en) Car air conditioner control device
KR100188067B1 (en) A fan control device for a vehicle
JPS5743147A (en) Control device for air conditioner
KR100191662B1 (en) A ventilation device of a vehicle
KR100461368B1 (en) Apparatus for controlling air conditioner in auto mobile
JPS57167815A (en) Air conditioner of vehicle
KR200161066Y1 (en) Acceleration obstruction device on hood opening
KR940010401B1 (en) Electronic temperature controller
JPS6241549A (en) Blow-off direction swing-control unit for air conditioner
KR960000550A (en) Indoor temperature control method of summer vehicle
KR980001047A (en) Automotive Intake Control Device
KR100508482B1 (en) Air Conditioner And Method Of Controlling The Same
KR100237933B1 (en) Fan motor control method for air conditioner
KR970002174A (en) The outdoor air discharge opening / closing control circuit of the air conditioner
JPS5634043A (en) Ventilating fan for use in kitchen
JPS5762349A (en) Controlling device of air conditioner
JPH05276777A (en) Controller for opening and closing opening-closing body
JPS56160210A (en) Automatic air conditioner for automobile
JPS54115838A (en) Heater utilizing coolant of engine
JPH0478489B2 (en)

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19981216

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee