TWM272949U

TWM272949U - Safety control circuit for gas flame detection and auto shutdown

Info

Publication number: TWM272949U
Application number: TW93209958U
Authority: TW
Inventors: Jung-Shiung Shiu
Original assignee: Jung-Shiung Shiu
Priority date: 2004-06-24
Filing date: 2004-06-24
Publication date: 2005-08-11

Description

M272949 四、創作說明（1)丨【新型所屬之技術領域】本創作係有關一種瓦斯火焰齋測及自動關閉之安全控制電路，尤指一種連接在瓦斯開關閥與瓦斯火焰偵測單元之間，藉由偵測瓦斯火焰之燃燒狀況，來開司控瓦斯供氣閥門之開啟或關閉，以避免在燃具未燃燒的狀態下仍持續輸出瓦斯氣體，造成中毒、***之危險，達確保瓦斯安全Y 使用之效能者。【先前技術】按瓦斯燃具已為目前一般家庭必備的烹飪或加熱的用具，其雖帶給人們極大的方便，然而它在使用時如稍有不慎卻極易產生***、火災或瓦斯中毒等重大危險；而為增進瓦斯燃具使用安全，當前已有許多瓦斯燃具裝設有瓦斯安全裝置，又這些瓦斯安全裝置之主要技術構思乃係藉於瓦斯爐火附近設置一偵測元件，例如是熱電偶、電離子偵測棒，利用該偵測元件測定爐火之燃燒狀態，據以司控瓦斯供氣閥門之開啟或關閉，來避免爐頭在未燃燒的狀態下仍持續送出瓦斯氣體，而造成瓦斯中毒或重新點火發生爆炸之慘劇。而前述瓦斯安全裝置之主要核心技術乃在，聯繫該偵測單元來司控該瓦斯閥門開閉的安全控制電路，因此瓦斯安全裝置效能之良窳該司控電路為主要關鍵；創作人先前曾向鈞局提出「安全瓦斯爐控制器改良電路（一）」專利案（公告第0 0 1 7 2 3 8 2號），以及「新穎瓦斯燃具自動安全控制電路（二）」專利案（公告第0 0 1 6 3 8 9 2號），這些控制電路M272949 IV. Creation Instructions (1) 丨 [New Technology Field] This creation relates to a safety control circuit for gas flame test and automatic shutdown, especially a connection between a gas switch valve and a gas flame detection unit. By detecting the combustion condition of the gas flame, the gas control valve is opened or closed by the gas controller to avoid the continuous output of gas when the burning appliance is not burned, causing the danger of poisoning and explosion, ensuring gas safety. Y Used by those who are effective. [Previous technology] Gas-burning appliances have become essential cooking or heating appliances for ordinary families. Although it brings great convenience to people, it is very easy to cause explosion, fire or gas poisoning if it is slightly inadvertent during use. And other major hazards; and in order to improve the safety of gas burning appliances, many gas burning appliances are currently equipped with gas safety devices, and the main technical idea of these gas safety devices is to set a detection element near the gas fire. For example, thermocouples and ion detection rods. The detection element is used to measure the combustion status of the furnace fire, and the gas supply valve of the company is controlled to open or close to prevent the furnace head from continuously sending gas in the unburned state. Gas, causing gas poisoning or re-ignition explosion tragedy. The main core technology of the aforementioned gas safety device is to contact the detection unit to control the safety control circuit of the gas valve opening and closing, so the performance of the gas safety device is good. The company's control circuit is the main key; the creator had previously submitted to Jun Bureau Filed a patent case for "Improved Circuit of Safety Gas Boiler Controller (I)" (Announcement No. 0 1 7 2 3 8 2) and a patent case for "Novel Gas Gas Appliance Automatic Safety Control Circuit (II)" (Announcement No. 0 0 1 6 3 8 9 2), these control circuits

M272949 四、創作說明（2) 略係由一電源供應電路部、一電源檢測顯示電路部、二火燄偵測電路部、一電源輸出驅動電路部、一測震電路、一定時控制電路部及一中央控制電路部所組成，使用時可以顯示安全控制電路之驅動電源是否正常、節省安全自動關閉控制器（電磁閥）之耗電量、準確的設定使用時間及防止安全自動關閉控制器誤動、並防止瓦斯燃具於使用時因地震造成翻覆引生火災、以及因安裝或使用不當造成之安全偵測失效而造成災害。M272949 IV. Creation Instructions (2) It consists of a power supply circuit section, a power detection display circuit section, two flame detection circuit sections, a power output drive circuit section, a vibration measurement circuit, a certain time control circuit section, and a The central control circuit unit is used to display whether the driving power of the safety control circuit is normal, save the power consumption of the safe automatic shutdown controller (solenoid valve), accurately set the use time, and prevent the safe automatic shutdown controller from malfunctioning. And prevent the gas burner from being overturned due to an earthquake caused by the fire when using, and the failure of the safety detection caused by improper installation or use caused by the disaster.

而前述電路確具準確偵測火焰燃燒狀態及安全自動關閉瓦斯供氣閥門之效能，惟其電子迴路設計複雜、組成元件繁多，不僅生產成本高昂，且故障機率相對提高，經常導致整體安全控制電路無法正常運作，喪失安全裝置的設置目的；又其複雜的電子迴路及元件，運作時頗費電力，因此除讀備置大電量的電池組供使用外，且須經常更換電池方可確保電路之正常運作，令使用者非常困擾。【新型内容；3 有鑒於此，本創作乃提供一種瓦斯火焰偵測及自動關洲.r 閉之安全控制電路，其針對習用者之缺失改進功能，並簡化其電子迴路設計及組成元件，達降低生產成本、故障機率以及節省耗電量之目的。The aforementioned circuit is indeed effective in accurately detecting the flame combustion state and safely closing the gas supply valve. However, its electronic circuit design is complex and the components are numerous. Not only is the production cost high, but the probability of failure is relatively high, which often results in the overall safety control circuit being unable to Normal operation loses the setting purpose of the safety device; and its complex electronic circuits and components consume a lot of power during operation, so in addition to reading and preparing a large battery pack for use, the battery must be replaced frequently to ensure the normal operation of the circuit , Which is very disturbing for users. [New content; 3 In view of this, this creation is to provide a gas flame detection and automatic Guanzhou.r closed safety control circuit, which improves the function for the lack of the user, and simplifies the design of the electronic circuit and its components. The purpose of reducing production costs, failure rates, and saving power consumption.

根據本創作，該安全控制電路係連接在瓦斯開關閥與瓦斯火焰偵測單元之間，並搭配一組瓦斯開關閥而運作Y 藉由偵測瓦斯火焰之燃燒狀況，來司控瓦斯供氣閥門之開啟或關閉，以達瓦斯安全使用之目的。According to this creation, the safety control circuit is connected between the gas switching valve and the gas flame detection unit, and operates with a group of gas switching valves. By detecting the combustion conditions of the gas flame, the gas supply valve is controlled by the company. It is turned on or off for the purpose of safe use of Davas.

第6頁 M272949 四、創作說明（3) 該安全控制電路至少包含一火焰偵測單元、一火焰訊號處理單元、一電源供應單元及一電磁線圈。該t滹供應“單元設有一電源開關，且該電源開關係被關聯安裝在^斯開關閥座上，並受該丨開關閥的旋控鈕司控而呈開或閉板態。該火焰偵測單元被裝設在瓦斯爐頭的火焰燃燒部位附近，可將所偵知的燃燒狀態訊息傳送到該火焰訊號處理單元，該火焰訊號處理單元根據爐火之燃燒狀態據以司控該電磁線圈是否激磁。Page 6 M272949 4. Creation instructions (3) The safety control circuit includes at least a flame detection unit, a flame signal processing unit, a power supply unit and an electromagnetic coil. The t 滹 supply unit is provided with a power switch, and the power-on relationship is installed on the switch valve seat and is controlled by the rotary control knob of the switch valve to open or close. The flame detection unit The measuring unit is installed near the flame burning part of the gas burner, and can transmit the detected combustion state information to the flame signal processing unit. The flame signal processing unit controls the electromagnetic coil according to the burning state of the furnace fire. Whether it is excited.

而該電磁線圈可驅動該瓦斯開關閥的瓦斯閥門作開閉的動作，以控制瓦斯燃氣供氣與否。 V 有關本創作乏其他特徵及功能，經配合下列圖式予以作進一步之說明後，期能使貴審查委員有更詳細的瞭解，惟以下所述者僅為用以解釋本創作之較佳實施例，並非企圖據以對本創作作任何形式上之限制，是以，凡有在相同之創作精神下所作有關本創作之任何修飾或變更，皆仍應包括在本創作意圖保護之範疇。【實施方式】The solenoid can drive the gas valve of the gas switching valve to open and close to control whether the gas is supplied with gas. V There are other features and functions of this creation, which will be explained in detail with the following drawings, so that the review committee can have a more detailed understanding, but the following are only used to explain the best implementation of this creation For example, it is not an attempt to restrict the creation in any form, but any modification or change related to the creation under the same creative spirit should still be included in the scope of protection of the creative intention. [Embodiment]

如附圖所示，該安全控制電路乃包含一火焰偵測單元 1 0、一火焰訊號處理單元2 0、一電源供應單元3 0及一電磁線圈4 0 ;而該電源供應單元3 0設有一電源開關，且該電源開關係被關聯安裝在瓦斯開關閥座上（未顯示於圖面），並受該開關閥的旋控鈕司控而呈開或閉狀態；該火焰偵測單元1 0被裝設在瓦斯爐頭的火焰燃燒部位附择（束顯示於pAs shown in the figure, the safety control circuit includes a flame detection unit 10, a flame signal processing unit 20, a power supply unit 30, and an electromagnetic coil 40. The power supply unit 30 is provided with a The power switch is installed on the valve seat of the gas switch (not shown in the figure) and is controlled by the rotary knob of the switch to open or close; the flame detection unit 1 0 The flame burner position installed on the gas stove is optional (beam is shown in p

第7頁 M272949 四、創作說明（4) 面），可將所偵知的燃燒狀態訊息傳送到該火焰訊號處理單元2 0，該火焰訊號處理單元根據爐火之燃燒狀態據以司控該電磁線圈4 0是否激磁；而該電磁線圈4 0可驅動該瓦斯開關閥座的瓦斯閥門（未顯示於圖面）作開閉的動作，以控制瓦斯燃氣供氣與否。 y 配合圖示：之、電子迴路設置進一步說明本創作運作方式及其功效特徵；當啟用瓦斯爐具時:，使用者押入並旋轉瓦斯開關的旋控鈕以點燃爐頭火焰，此時對瓦斯開關旋控鈕的押入及旋轉動作，亦使該安全控制電路的電源開關S 1 形成閉路（ON)，電源BT供電而整體安全控制電路開始運作；該火焰偵測單元1 0串接電阻R1連接至三極體Q1 ，當爐頭有火焰時有電流（火焰偵測訊號）流經電阻R 1 ，該三極體 Q 1作為火焰偵測訊號的前置放大，有火時，三極體Q 1導通，電阻R 2有電流通過；而三極體Q 2係作為該火焰偵測訊號的二級放大，當有火擴，三極體Q2導通，否則不導通；電阻R3作為三極體Q1、!三極體Q2之間的限流交連；當三極體Q2導通時，電容器C1上的電荷對三極體Q2放電，此時二極體D1為反偏，使得三極體Q3不導通，而三極體Q4則導通，可驅動該電磁線圈4 0產生磁力將瓦斯閥門吸住保持在開啟的狀’態，以持續供應瓦斯氣至爐頭燃燒。再當爐頭火焰熄滅時，無電流流經電阻R 1、R 2，三極體Ql 、Q2不#通，此時V +經由電阻R4對電容器C1充電，一段時間後（約3秒），電容器C 1的充電電壓使得二極體D 1正 yvv 偏，而使三極體Q3導通，此時三極體Q4則不導通，該電磁Page 7 M272949 IV. Creation Instructions (4) side), the detected combustion status information can be transmitted to the flame signal processing unit 20, and the flame signal processing unit controls the electromagnetic according to the combustion status of the furnace fire. Whether the coil 40 is excited; and the electromagnetic coil 40 can drive the gas valve (not shown in the figure) of the gas switching valve seat to open and close to control whether the gas is supplied with gas. y with the icon: the electronic circuit setting further explains the creative operation method and its functional characteristics; when the gas stove is enabled: the user presses in and rotates the rotary knob of the gas switch to ignite the flame of the burner. The push-in and rotation of the rotary control knob also causes the power switch S 1 of the safety control circuit to form a closed circuit (ON), the power supply BT supplies power and the overall safety control circuit starts to operate; the flame detection unit 10 is connected in series with the resistor R1 and connected To the triode Q1, when the burner has a flame, a current (flame detection signal) flows through the resistor R1. This triode Q1 is used as a preamplifier for the flame detection signal. When there is a fire, the triode Q 1 is turned on, and the resistor R 2 has a current passing through it; and the transistor Q 2 is used as the secondary amplification of the flame detection signal. When there is a fire expansion, the transistor Q 2 is turned on, otherwise it is not turned on; the resistor R 3 is used as the transistor Q 1 ,! Triode Q2 current-limiting interconnection; when the transistor Q2 is turned on, the charge on the capacitor C1 discharges the transistor Q2, and the diode D1 is reverse biased at this time, so that the transistor Q3 is not turned on. , And the transistor Q4 is turned on, which can drive the electromagnetic wire 40 generates a magnetic force attracts the gas valve remains in the open state of the 'state, the gas is continuously supplied to the combustion gas to the burner. When the furnace flame is extinguished, no current flows through the resistors R1, R2, and the transistors Q1 and Q2 are not turned on. At this time, V + charges the capacitor C1 through the resistor R4, and after a period of time (about 3 seconds), The charging voltage of the capacitor C 1 causes the diode D 1 to be positive yvv, and the transistor Q3 is turned on. At this time, the transistor Q4 is not turned on.

M272949M272949

M272949 圖式簡單說明【圖面說明】第一圖係本創作之電路圖。【元件說明】M272949 Schematic description [Illustration of the drawing] The first diagram is the circuit diagram of this creation. [Element description]

火焰偵測單元1 〇火焰訊號處理單元2 0 電源供應單元3 0 電磁線圈4 0 電源開關S 1 電源BT 電阻Rl，R2, R3, R4, R5 三極體Ql，Q2, Q3, Q4 電容器C 1，C f 二極體Dl，D〗Flame detection unit 1 〇 Flame signal processing unit 2 0 Power supply unit 3 0 Solenoid coil 4 0 Power switch S 1 Power BT resistor Rl, R2, R3, R4, R5 Triodes Ql, Q2, Q3, Q4 Capacitor C 1 , C f diode Dl, D〗

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Claims

M272949 五、申請專利範圍丨、c r 1. 一種瓦斯：^焰偵測i自動關閉之安全控制電路，係搭配一組瓦斯開關闊而運作，藉由偵測瓦斯火焰之燃燒狀況來司控瓦斯供氣閥門之開啟或關閉，其至少包含：一電源供應單元，設有一組電源開關被安裝在前述瓦斯開關閥上並受該開關閥的旋控鈕司控而開閉自如；一火焰偵測單元，裝設在瓦斯爐頭的火焰燃燒部位附近，可將所偵知的燃燒狀態訊息傳送到後述的火焰訊號處理單元；M272949 V. Patent application scope 丨 cr 1. A type of gas: safety control circuit for flame detection and automatic shutdown, which works with a set of gas switches, and controls the gas supply by detecting the combustion conditions of the gas flame. The opening or closing of the gas valve includes at least: a power supply unit provided with a set of power switches installed on the gas switching valve and controlled by the rotary control knob of the switching valve to open and close freely; a flame detection unit, It is installed near the flame burning part of the gas stove, and can transmit the detected combustion status information to the flame signal processing unit described later;

一火焰訊號處理單元，係依照火焰偵測單元的訊號來司控後述的電磁線圈是否激磁；以及一電磁線圈，可驅動前述瓦斯開關閥的瓦斯閥門作開閉的動作，以控制瓦斯燃氣供氣與否。A flame signal processing unit controls whether or not an electromagnetic coil described later is excited according to a signal from the flame detection unit; and an electromagnetic coil can drive the gas valve of the gas switching valve to be opened and closed to control gas gas supply Or not.

2 、如申請專利範圍第1項所述之瓦斯火焰偵測及自動關閉之安全控制電路，其電子迴路設置如第一圖所示，當該火焰偵測單元偵得火焰訊號時，將產生電流訊號使三極體（Q1 )及（Q 2 )導通，然後電容器（C 1)上的電荷對三極體（Q2)放電，令二極體（D1 )為反偏，使三極體 (Q3)不導通，而三極體（Q4)則導通，使該電磁線圈驅動瓦斯閥門保持在開啟的狀態持續供應瓦斯氣至爐頭燃燒；再該火焰偵測單元偵得無火焰訊號時，無電流流經電阻（R 1 )、（ R 2 )，三極體（Q 1 )、（ Q 2 )不導通，此時V+經由電阻（R4)對電容器（C1)充電，而電容器（C1) 的充電電壓使得二極體（D1)變為正偏，令三極體（Q3) 導通，此時三極體（Q 4 )則不導通，該電磁線圈無法驅2. According to the gas flame detection and automatic shutdown safety control circuit described in item 1 of the scope of patent application, the electronic circuit setting is shown in the first figure. When the flame detection unit detects a flame signal, a current will be generated. The signal turns on the triode (Q1) and (Q2), and then the charge on the capacitor (C1) discharges the triode (Q2), causing the diode (D1) to be reverse biased and the triode (Q3 ) Is not conducting, and the triode (Q4) is conducting, keeping the solenoid coil driving the gas valve in an open state to continuously supply gas to the burner of the burner; when the flame detection unit detects no flame signal, there is no current Flow through the resistors (R 1), (R 2), the triodes (Q 1), (Q 2) are not conducting, at this time V + charges the capacitor (C1) through the resistor (R4), and the capacitor (C1) is charged The voltage causes the diode (D1) to become forward-biased, and the transistor (Q3) is turned on. At this time, the transistor (Q4) is not turned on, and the electromagnetic coil cannot be driven.

第11頁 M272949： I~各i I · 士:愚 1 五、申請專利圍" 0 _ 動瓦L新闕F，-保持開啟 3 、如申請專利範圍第2 閉之安全控制電路，測訊號的前置放大。 4 、如申請專利範圍第2 閉之安全控制電路，焰偵測訊號的二級放 5 、如申請專利範圍第2 閉之安全控制電路，、三極體（Q2)之間的 6 、如申請專利範圍第2 閉之安全控制電路，容器（C1)充電至其電時間被設定在1. 5至6 ，使該閥門遮蔽瓦斯項所述之瓦斯火焰偵其中，該三極體（Q 1 ) 項所述之瓦斯火焰偵其中，該三極體（Q 2 ) 大。項所述之瓦斯火焰偵其中，電阻（R 3 )作為限流交連。項所述之瓦斯火焰偵其中，前述V+經由電壓可使二極體（D 1 )正秒之間。供氣通道。測及自動關作為火焰偵測及自動關係作為該火測及自動關三極體（Q 1 ) 測及自動關阻（R4)對電偏9該充電 SM272949 on page 11: I ~ each I · Shi: Yu 1 V. Patent application " 0 _ moving watt L new 阙 F,-keep open 3, such as the second closed safety control circuit of the scope of patent application, test signal Pre-amplifier. 4. If the second closed safety control circuit of the scope of patent application, the second stage of the flame detection signal5, if the second closed safety control circuit of the scope of patent application, 6 between the triode (Q2), if applied The scope of the patent is the second closed safety control circuit. The time for charging the container (C1) to 1.5 to 6 is set so that the valve covers the gas flame detection described in the gas item. The triode (Q 1) The gas flame detection described in the item, wherein the triode (Q 2) is large. The gas flame detection described in item 1, where the resistor (R 3) is connected as a current limit. The gas flame detection according to the above item, wherein the aforementioned V + can cause the diode (D 1) to be between positive seconds through the voltage. Air supply channel. Detection and auto-off As flame detection and auto-off As the fire Detection and auto-off Triode (Q 1) Detection and auto-off (R4) For electric bias 9 Charge S

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