KR890001946Y1 - Valve drive circuit for gas range - Google Patents
Valve drive circuit for gas range Download PDFInfo
- Publication number
- KR890001946Y1 KR890001946Y1 KR2019860000576U KR860000576U KR890001946Y1 KR 890001946 Y1 KR890001946 Y1 KR 890001946Y1 KR 2019860000576 U KR2019860000576 U KR 2019860000576U KR 860000576 U KR860000576 U KR 860000576U KR 890001946 Y1 KR890001946 Y1 KR 890001946Y1
- Authority
- KR
- South Korea
- Prior art keywords
- safety valve
- nand gate
- output
- resistor
- capacitor
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
- F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
Abstract
내용없음.None.
Description
제1도는 본 고안의 개략적인 구성을 나타내는 블럭도.1 is a block diagram showing a schematic configuration of the present invention.
제2도는 본 고안의 회로구성을 나타내는 회로도.2 is a circuit diagram showing a circuit configuration of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 점화감지부 2 : 플립플롭1: ignition detection unit 2: flip-flop
3 : 시간설정 제어부 4 : 안전밸브 구동부3: time setting control part 4: safety valve drive part
본 고안은 가스렌지용 안전밸브의 구동회로에 관한 것이다.The present invention relates to a drive circuit of a safety valve for a gas stove.
가스렌지에는 가스차단용 안전밸브가 부착되는데 이 안전밸브는 상시 폐쇄형의 것으로 비연소 상태에서 가스(gas)가 분출되는 것을 방지해주고 있다.A gas shut-off safety valve is attached to the stove, which is always closed and prevents gas from being discharged in an unburned state.
종래의 안전밸브 구동회로는 사용자가 가스렌지를 사용시에 점화하면 열전대 감지기가 가열될때까지 수동노브를 조작하여 10-20초간 안전밸브를 강제로 열어주어야 하는 단점이 있었다.The conventional safety valve driving circuit has a disadvantage in that when the user ignites when using the gas stove, the safety valve must be forcibly opened for 10-20 seconds by operating the manual knob until the thermocouple detector is heated.
따라서 본 고안의 목적은 상술한 결점을 해결하기 위해 안출한 것으로 점화되어서 가스렌지 연소상태 온도를 감지하는 더어미스터(ther mistor)를 장치하여 더어미스터가 가열될때까지 안전밸브를 열어 가스가 유출되도록 동작시켜주고, 그 후에는 더어미스터의 온도변화에 따라 안전밸브를 구동하는 안전밸브 구동회로를 제공함에 있다.Therefore, the object of the present invention is to ignite the problem to solve the above-mentioned defects by operating a thermostat (ther mistor) to detect the gas stove combustion temperature temperature to open the safety valve until the heater is heated to operate the gas outflow After that, to provide a safety valve driving circuit for driving the safety valve in accordance with the temperature change of the thermistor.
이하 본 고안을 첨부도면에 따라 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 고안은 제1도의 도시과 같이 점화감지부(1)과, 플립플롭(2) 및 시간설정 제어부(3), 그리고 안전밸브 구동부(4)로 구성된다.The present invention is composed of an ignition detecting unit 1, a flip-flop 2, a time setting control unit 3, and a safety valve driving unit 4 as shown in FIG.
사용자가 가스렌지를 점화시키면 이와 동시에 점화감지부(1)에 유도기전력이 발생되고, 이 전압은 플립플롭(2)를 거쳐 시간설정 제어부(3)에서 설정시간 동안 안전밸브를 구동하고 그 후에는 더어미스터가 안전밸브 구동부(4)를 제어한다.At the same time, when the user ignites the gas stove, induction electromotive force is generated in the ignition detection unit 1, and this voltage is driven through the flip-flop 2 to drive the safety valve for a set time in the time setting control unit 3. The demister controls the safety valve drive unit 4.
상기한 본 고안에서 각 부분의 회로 동작구성은 제2도의 도시와 같다.The circuit operation configuration of each part in the present invention described above is as shown in FIG.
점화감지부(1)은 코일 또는 금속 튜우브와 같은 정전유도체(Re)와 낸드게이트(N1)로 이루어지고, 그 사이에 회로 보호저항(R1)을 직렬로, 전압 안정용의 제너다이오드(ZD)와 저항(R2)을 접지시켜 병렬로 연결한다.The ignition detection unit 1 is composed of an electrostatic inductor Re such as a coil or metal tubing and a NAND gate N 1 , and a circuit protection resistor R 1 in series therebetween, and a zener diode ZD for voltage stabilization. ) And resistor (R 2 ) are connected in parallel.
플립플롭(2)는 입력신호를 래치(Lach)하는 낸드게이트(N2-N3)로 이루어진다.The flip-flop 2 is formed of NAND gates N 2 -N 3 that latch the input signal.
시간설정 제어부(3)은 낸드게이트(N2)에서 출력된 신호에 의해서 설정시간에 상당하는 시정수를 갖는 저항(R3), 콘덴서(C2)와 리세트(Reset)신호를 플립플롭(2)의 낸드게이트(N3)에 입력하기 위한 낸드게이트(N4)와, 낸드게이트(N4)의 입력단자와 연결되는 저항(R4)과, 콘덴서(C2)의 방전용 다이오드(D)로서 구성된다. 안전밸브 구동부(4)는 플립플롭(2)에서 출력되는 신호를 콘덴서(C1)과 앤드게이트(AND)를 거쳐 출력시키고, 그 사이에 저항(R5)를 접지시켜 병렬 연결한다.The time setting control unit 3 flips a resistor R 3 , a capacitor C 2 , and a reset signal having a time constant corresponding to the set time by a signal output from the NAND gate N 2 . 2) a NAND gate (N 4), and a NAND gate resistor connected to the input terminal of the (N 4) (R 4) and a discharge of the capacitor (C 2) diode for input to the NAND gate (N 3) of the ( D). The safety valve driving unit 4 outputs the signal output from the flip-flop 2 through the capacitor C 1 and the AND gate AND, and grounds the resistor R 5 therebetween to connect the parallel signal.
앤드게이트(AND)와 저항(R6-R7)을 거친 출력신호는 직렬로 연결한 NPN트랜지스터(Q1)와 PNP트랜지스터(Q2)를 순차 도통한다. 도면의 미설명부호(BT)는 전원용 건전지, 부호(5)는 가스렌지에 장치된 점화수단으로서의 압전기, 부호(6)은 압전기 (5)의 조작노브, 부호(7)은 전자력에 의해 개방되는 가스렌지의 안전밸브, 부호 (TH)는 가스렌지의 점화한 온도를 감지한 신호를 시간설정 제어부(3)에 입력시키는 더어미스터이다.The output signal passing through the AND gate (AND) and the resistors (R 6 -R 7 ) sequentially conducts the NPN transistor (Q 1 ) and the PNP transistor (Q 2 ) connected in series. In the drawings, reference numeral BT denotes a battery for power supply, 5 denotes a piezoelectric element as an ignition means installed in a gas stove, 6 denotes an operation knob of the piezoelectric element 5, and 7 denotes an electronic force. The safety valve, symbol TH of the gas stove is a demister for inputting a signal which detects the ignition temperature of the gas stove to the time setting controller 3.
상술한 본 고안의 구성에 있어서, 정전유도체(Re)를 압전기(5)의 도선에 장치하여 사용자가 조작노브(6)을 쥐고 압전기(5)를 작동시킬때 도선에는 고전압이 발생하여 가스렌지의 가스분출부분에 불꽃을 일으키게된다.In the above-described configuration of the present invention, when the user operates the piezoelectric device 5 by holding the operation knob 6 by installing the electrostatic induction conductor Re on the wire of the piezoelectric body 5, a high voltage is generated in the wire. Sparks are generated in the gas ejection area.
이때 정전유도체(Re)에는 유도기전력이 발생하여 저항(R1)을 거쳐 낸드게이트(N1)에 ˝H˝(High전압)이 인가되어서 출력단에 ˝L˝(Low전압)의 신호가 출력된다.At this time, induction electromotive force is generated in the electrostatic inductor Re, and a high voltage is applied to the NAND gate N 1 through the resistor R 1 , and a low voltage signal is output to the output terminal. .
이 ˝L˝ 신호는 낸드게이트(N2)에 가해져 낸드게이트(N2)의 출력단에서는 ˝H˝ 신호가 출력되어 저항(R3)을 거쳐서 콘덴서 (C2)에 전하가 축적된다. 이때 충전된 시정수(R3× C2)만큼 낸드게이트(N4)의 한쪽단자에 ˝L˝가 입력되고 출력단자에는 ˝H˝가 출력되어서 래치부인 낸드게이트(N3)에 입력된다.The ˝L˝ signal to the NAND gate, the output terminal of the NAND gate (N 2) is applied to the (N 2) is a ˝H˝ signal output capacitor through the resistor (R 3) (C 2) electric charge is accumulated. At this time, LL is input to one terminal of the NAND gate N 4 by the charged time constant R 3 × C 2 , and HH is output to the output terminal and is input to the NAND gate N 3 , which is a latch unit.
낸드게이트(N3)의 출력은 ˝L˝가 되어 콘덴서 (C1)과 앤드게이트(AND) 및 저항(R6)을 거쳐 NPN트랜지스터(Q1)의 베이스단자에 인가되는데 트랜지스터(Q1-Q2)를 도통시키지 못한다.A NAND gate (N 3) is the output of the ˝L˝ capacitor (C 1) and the AND gate (AND) and via a resistor (R 6) there is applied to the base terminal of the NPN transistor (Q 1) transistor (Q 1 - Q 2 ) does not conduct.
따라서 상기한 동작에 따라 안전밸브 구동부(4)를 구동하지 않은채 초기 점화시에는 조작노브(6)의 조작에 의한 수동식으로 안전밸브가 개방된 상태로 가스를 발화부분으로 유출된다.Therefore, in the initial ignition without driving the safety valve drive unit 4 according to the above operation, gas flows out into the ignition part while the safety valve is manually opened by the operation of the operation knob 6.
그리고 초기 점화후 시정수에 상응하는 10-20초동안 가스렌지가 발화되는데 그 후에는 콘덴서(C2)에 축적된 전하가 방전되어 낸드케이트(N4)의 단자에 ˝H˝신호로 입력되고, 발화부분에서 온도를 감지하는 더어미스터(TH)가 가열되었으면 다른 단자에 ˝L˝가 입력되어 출력단에 ˝H˝가 출력된다.After the initial ignition, the gas stove is ignited for 10-20 seconds corresponding to the time constant. After that, the charge accumulated in the capacitor C 2 is discharged and input to the terminal of the NAND gate N 4 as a ˝H˝ signal. If the thermistor (TH) that senses temperature at the ignition part is heated, ˝L˝ is input to the other terminal and 되어 H˝ is output to the output terminal.
이 출력신호는 낸드게이트(N3)의 출력단에 ˝L˝로 출력시켜 상기한 순서대로 동작되어 가스 안전밸브가 계속개방되어 진다.This output signal is outputted to the output terminal of the NAND gate N 3 at < RTI ID = 0.0 ># L < / RTI >
상기한 회로동작에서 더어미스터(TH)가 가열되어 있기때문에 가스렌지가 계속 발화되고 있음을 알수 있다. 그러나 콘덴서 (C2)에서 방전되어 낸드케이트(N4)의 한 단자에 ˝H˝신호가 입력되고, 더어미스터(TH)가 상온의 상태에 있으면 다른 단자에는 ˝H˝신호가 입력되어 출력단에 ˝L˝신호가 출력된다.It can be seen that the gas stove continues to ignite because the thermistor TH is heated in the above circuit operation. However, when the capacitor (C 2 ) is discharged and the HH signal is input to one terminal of the NAND gate (N 4 ), and the thermistor (TH) is at room temperature, the HH signal is input to the other terminal. The L signal is output.
이 ˝L˝신호는 낸드케이트(N3)에 입력되어 래치부인 플립플롭(2)를 리세트 (Reset)시킨다.This L signal is inputted to the NAND gate N 3 to reset the flip-flop 2 serving as the latch portion.
리세트된 낸드게이트(N3)의 ˝H˝출력은 콘덴서(C1)와 앤드게이트(AND) 및 저항 (R6)을 거쳐 NPN 트랜지스터(Q1)의 베이스단자에 인가되어 순차적으로 NPN 트랜지스터(Q1), PNP 트랜지스터(Q2)를 도통시켜서 안전밸브 구동부(4)를 구동시켜 안전밸브에 의해 가스가 차단된다.The ˝H˝ output of the reset NAND gate N 3 is applied to the base terminal of the NPN transistor Q 1 through the capacitor C 1 , the AND gate, and the resistor R 6 , and subsequently the NPN transistor. (Q 1 ) and PNP transistor Q 2 are conducted to drive safety valve driver 4 to shut off gas by the safety valve.
위 회로동작에서는 점화된 후 시정수의 시간동안에 발화가 외부요인인 예를들면 바람이 불어 불이 꺼져서 더어미스터(TH)가 가열되지 않아서 더어미스터(TH)에 의해 안전 밸브 구동부(4)를 구동하여 가스를 차단하였음을 알 수 있다.In the above circuit operation, when the ignition is an external factor during the time constant after ignition, for example, the wind blows out and the thermistor TH is not heated so that the safety valve drive unit 4 is driven by the thermistor TH. It can be seen that the gas is blocked.
그리고 가스렌지가 계속 발화중에 외부요인에 의해서 예를 들어 물이 끓어넘쳐 소화될 때에도 가열된 더어미스터(TH)가 식어서 상온의 상태가 되면 상기한 동작순서에 따라 안전밸브 구동부(4)를 구동하여 가스를 차단시킨다.And while the stove is still ignited, even when water is boiled and extinguished by external factors, for example, when the heated thermistor (TH) cools down to room temperature, the safety valve drive unit 4 is driven in accordance with the above-described operation sequence. To shut off the gas.
따라서 상술한 본 고안에 따라 점화시에 더어미스터가 가열될 때까지 안전밸브를 열어 발화시키고 그 후에는 더어미스터의 온도 변화에 따라 안전밸브를 구동하여 가스렌지의 가스위험에 대한 안전도를 더욱 향상시킬 수 있는 장점이 있다.Therefore, according to the present invention described above, when the ignition is opened, the safety valve is opened until the heater is heated, and then the safety valve is driven in accordance with the temperature change of the thermistor to further improve the safety of the gas hazard of the gas stove. There are advantages to it.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860000576U KR890001946Y1 (en) | 1986-01-21 | 1986-01-21 | Valve drive circuit for gas range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860000576U KR890001946Y1 (en) | 1986-01-21 | 1986-01-21 | Valve drive circuit for gas range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR870012651U KR870012651U (en) | 1987-08-05 |
| KR890001946Y1 true KR890001946Y1 (en) | 1989-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860000576U KR890001946Y1 (en) | 1986-01-21 | 1986-01-21 | Valve drive circuit for gas range |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR890001946Y1 (en) |
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1986
- 1986-01-21 KR KR2019860000576U patent/KR890001946Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR870012651U (en) | 1987-08-05 |
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