_ 五、發明説明（工） 一 --- <發明所屬技術領域> ,t月係關於—種控制對設置於瓦斯器具之燃燒器 二斯供給量’進行燃燒器的點火熄火及火力調節之火力 调郎裝置。 <習知之技術> 乍為自知之火力調節裝置，乃是廣為人知之依據專利 &旦’在各每_燃燒器安裝相當於進行火力調節之 L里：即機構之馬達驅動式之電動閥。該電動閥-般都使 =、$之馬達，為此，在包含馬達的旋轉軸之驅動系之一 P有义要ax置位置傳感器。而且，藉其位置傳感器一面檢 知電動閥的開度一面調節開度。 為此在"玄火力調節機構必須設置用以檢知電動閥的 開度之位置傳感器。而且，必須經常一面檢查位置傳感器 的輸出信號，一面調節電動閥的開度。 在如此場合，考慮了使用步進馬達作為驅動流量調節 桟構之馬達，藉供給至步進馬達之脈衝數控制開度。如此 使用了步進馬達後，在一定之開度位置可以保持其開度。 <發明欲解決之課題> 但是，在使用步進馬達的場合有可能會產生所謂由所 供給之脈衝數之假定之開度與實際的開度發生偏差之失調 之錯誤。 從而’考慮了不用檢知流量調節機的開度，僅以供給 至步進馬達之脈衝數控制開度者，針對失調有必要修正。 在此本發明鑒於上述的問題點，以提供一種在以步進 本紙張尺度適用中國國家標準（CNS) Α4規格（210X297公釐） 4 ----------------费…： (請先閲讀背面之注意事項再填寫本頁) -訂| 五、發明説明（2 ) 際，沒有必要藉位置傳感器經常 ，可以確實的修正錯誤之火力調 馬達驅動流量調節機構之 監視流量調節機構的開度 節裝置為課題。 <解決課題的手段> —為解決上述課題，依據本發明之火力調節裝置，係將 猎馬達15騎減控制供給瓦斯至㈣器之瓦斯量且在閉闊 :置V止瓦斯之供給之流量調機構，設置於用以開關朝流 量調節機構之瓦斯之供給路之電磁式安㈣之下游側者， 口亥火力调喊裝置使用步進馬達作為前述馬達，藉可供 、’、。至忒步進馬達之脈衝數來控制前述流量調節機構之開 度’同時將開關之作動位置設定在流量調節機構之開度形 成可供給點火所需之瓦斯量之位置靠近全閉侧，當達到該 開關之作動位置後，藉該開關之作動修正由前述脈衝數所 規定之開度與實際之開度之誤差。 右依據上述構造，使流量控制機構由全閉狀態開閥之 際，以及由開閥狀態閉閥成全閉狀態之際，由於開關一定 會作動，所以可確實地進行修正。 又女裝有連動於步進馬達之旋轉軸旋轉之凸輪板， 及藉该凸輪板作動之微開關，並且以該微開關作為前述開 關0 <發明的實施形態> 參照第1圖，GT為氣體熱力性質表，包含有·· 2個之爐 子用燃燒器BC與1個之烘烤用燃燒器BG。在此些各燃燒器 bc、bg,由瓦斯供給管供給瓦斯。火力調節用之閥元件1 A7 *~— _______B7_ 五、發明^^TT~7 〜—~— 各個值列的連接於各燃燒器BC、BG。 、該閥元件1係由電磁式的安全閥2與流量調節閥3所構 成，該電磁式的安全閥2，係開關對各燃燒器Bc、Β〇之瓦 斯的供給路；該流量調節閥3，係對各燃燒器Bc、BG增減 瓦斯的流量進行火力調節。 參照第2圖，安全閥2在螺線管部21内藏有螺線管線圈 與彈簧。閥體2〇係藉該彈簧經常賦予向閉閥方向之勢能， 通電至螺線管後抵抗彈簣的付勢力，閥體2〇被驅動向開閥 方向，瓦斯供給路被開放。反之，對螺線管的通電停止後， 藉螺線管線圈消滅磁力，閥體20藉彈簧的付勢力回到閉閥 方向，瓦斯供給路被閉鎖。 流量調節閥3係由旋轉板31、固定板32與節流板％所 構成。更進一步，參照第3圖，旋轉板31藉連結於步進馬達 34之驅動軸34a之旋轉軸35旋轉。一方面，固定板^被固定 於閥元件1的框體。在旋轉板3 1沿著旋轉方向開著長孔 3 1 a 在固疋板3 2沿者長孔3 1 a的軌跡形成多數之貫通孔 32a ° 長孔31a與貫通孔32a不一致後，瓦斯無法通過長孔 31a，從而，瓦斯無法供給至各燃燒器bc、bg。驅動步進 馬達34使旋轉板31旋轉後，長孔31a逐漸一致於貫通孔 32a。一致於長孔3以之貫通孔32&通過瓦斯。但是，由於長 孔31a形成一致於2個之貫通孔32a之長度，所以使旋轉板 31a旋轉後，一致於長孔32a之貫通孔32a之組合逐漸轉換。 又，瓦斯種不同後因應瓦斯種有必要變更瓦斯的供給 6 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 1221891 A7 B7 五、發明説明（4 量。為此，藉由墊片32b將因應瓦斯種之流量形成節流孔33& 之節流板33重疊於固定板33的上面。由於如此構造，所以 (請先閲讀背面之注意事項再填寫本頁) 使旋轉板3 1旋轉後，瓦斯通過節流孔33a逐漸被選擇，藉節 流孔33a調節之量之瓦斯被供給至各燃燒器、bg。又， 在變更瓦斯種的場合，因應變更後的瓦斯種若僅更換節流 板3 3的話即可。 訂· :、、〈'而，步進馬達3 4藉來自未圖示之控制裝置所供給之 脈衝信號旋轉驅動。而且，驅動軸34a的旋轉角度比例於供 給之脈衝數。本發明並不是使用編碼器等連續檢知驅動軸 34a之實際的旋轉角度之回饋控制，而是僅藉供給之脈衝數 進行控制旋轉角度之開環控制。但是，瓦斯供給量在達到 一定量後，由於有必要使具有未圖示之點火器及點火電極 之點火裝置作動點火於燃燒器Bc、BG，所以在步進馬達 34的驅動軸安裝凸輪4，構成安裝於該凸輪4的近旁之微開 關5藉凸輪4設定於on後點火裝置作動。 參照第4圖，流量調節閥3由表示閉狀態⑷之狀態驅動 步進馬達34,使旋轉板31旋轉後，流量控制閥3形成開閥狀 態。但是，開闊初期的開度所供給之瓦斯量，係相當於弱 火之瓦斯量之極少量。在如此之狀態即使使點火裝置作動 亦無法使其點火至各燃燒器BC、BG。為此，在使旋轉板 31旋轉約110。之時點使點火裝置作動。旋轉板”旋轉ιι〇 後連動凸輪4也旋轉11〇。’如（b)所示，凸輪部“使微開 關置於ON。 該110的位置係設定成比中火位置若干弱火位置_ V. Description of the invention (work) I --- <Technical Field to which the Invention belongs>, the month is about a kind of control of the burner ignition and flameout and firepower adjustment of the two-supplied amount of the burner provided in the gas appliance Firepower device. < Knowledged technology > Fire control device, which is self-knowledge, is a well-known patent & once installed in each burner is equivalent to the adjustment of fire power: that is, the mechanism's motor-driven electric valve. The electric valve generally uses a motor of = and $. For this reason, a position sensor is required to be installed on one of the drive systems of the rotating shaft including the motor. The position of the electric valve is adjusted while detecting the opening of the electric valve by its position sensor. For this reason, a position sensor for detecting the opening degree of the electric valve must be provided in the "metafire power adjustment mechanism". Furthermore, it is necessary to constantly check the output signal of the position sensor and adjust the opening degree of the electric valve. In this case, it is considered that a stepping motor is used as a motor for driving the flow rate adjustment mechanism, and the opening degree is controlled by the number of pulses supplied to the stepping motor. After using the stepping motor in this way, the opening can be maintained at a certain opening position. < Problems to be Solved by the Invention > However, in the case of using a stepping motor, there may be an error that the so-called deviation of the assumed opening degree from the number of supplied pulses deviates from the actual opening degree. Therefore, it is considered that those who do not need to detect the opening degree of the flow rate regulator and control the opening degree only by the number of pulses supplied to the stepping motor need to correct the misalignment. In view of the above-mentioned problems, the present invention provides a method for applying the Chinese National Standard (CNS) Α4 specification (210X297 mm) in step paper size 4 --------------- -Fee…: (Please read the notes on the back before filling this page) -Order | V. Description of the invention (2) On the occasion, there is no need to borrow the position sensor often, it can definitely correct the error of the firepower adjustment motor drive flow adjustment mechanism. The problem is to monitor the opening degree device of the flow rate adjustment mechanism. < Means for solving the problem >-In order to solve the above-mentioned problem, according to the fire power adjusting device of the present invention, the hunting motor 15 rides down the gas amount supplied from the gas to the steerer and is closed: V is set to stop the gas supply. The flow regulating mechanism is provided on the downstream side of the electromagnetic type for switching on and off the gas supply path to the gas supply mechanism of the flow regulating mechanism. The mouth-fire fire-calling device uses a stepping motor as the aforementioned motor. The number of pulses of the stepping motor is used to control the opening degree of the aforementioned flow regulating mechanism. At the same time, the operating position of the switch is set to the opening degree of the flow regulating mechanism to form a position that can supply the gas amount required for ignition close to the fully closed side. After the operation position of the switch, the error between the opening degree specified by the aforementioned pulse number and the actual opening degree is corrected by the operation of the switch. Based on the above structure, when the flow control mechanism is opened from the fully closed state and when the valve is closed from the open state to the fully closed state, the switch is always operated, so that the correction can be performed with certainty. There is also a cam plate that rotates on the rotation axis of the stepping motor, and a micro switch actuated by the cam plate. The micro switch is used as the switch. 0 < An embodiment of the invention > Referring to FIG. 1, GT It is a table of gas thermal properties, and includes two burners BC for stoves and one burner BG for baking. These burners bc, bg are supplied with gas from a gas supply pipe. Valve element for thermal power adjustment 1 A7 * ~ — _______B7_ V. Invention ^^ TT ~ 7 ~~~ — Each value series is connected to each burner BC, BG. The valve element 1 is composed of an electromagnetic safety valve 2 and a flow regulating valve 3, and the electromagnetic safety valve 2 is a switch for supplying gas to each burner Bc, B0; the flow regulating valve 3 It is used to adjust the firepower of the gas flow of each burner Bc, BG. Referring to FIG. 2, the solenoid valve 21 includes a solenoid coil and a spring in the solenoid portion 21. The valve body 20 is often provided with potential energy in the valve closing direction by this spring. After being energized to the solenoid, it resists the impulse force, the valve body 20 is driven in the valve opening direction, and the gas supply path is opened. On the contrary, after the energization of the solenoid is stopped, the magnetic force is eliminated by the solenoid coil, the valve body 20 returns to the valve closing direction by the supporting force of the spring, and the gas supply path is blocked. The flow regulating valve 3 is composed of a rotating plate 31, a fixed plate 32, and a throttle plate%. Furthermore, referring to Fig. 3, the rotary plate 31 is rotated by a rotary shaft 35 connected to a drive shaft 34a of the stepping motor 34. On the one hand, the fixing plate ^ is fixed to the frame of the valve element 1. Long holes 3 1 a are opened in the rotation plate 3 1 along the rotation direction. A large number of through holes 32 a are formed along the trajectory of the long holes 3 1 a of the fixed plate 3 2. After the long holes 31 a do not match the through holes 32 a, the gas cannot be used. Through the long hole 31a, gas cannot be supplied to each of the burners bc, bg. After the stepping motor 34 is driven to rotate the rotary plate 31, the long hole 31a gradually coincides with the through hole 32a. The through hole 32 coincides with the long hole 3 & passes gas. However, since the long holes 31a are formed to have the same length as the two through holes 32a, the combination of the through holes 32a consistent with the long holes 32a is gradually changed after the rotating plate 31a is rotated. In addition, it is necessary to change the gas supply in response to different gas types. (Please read the precautions on the back before filling out this page.) This paper applies the Chinese National Standard (CNS) A4 specification (210X297 mm). 1221891 A7 B7 5 2. Description of the invention (4 quantity. To this end, the throttle plate 33, which is formed with a throttle hole 33 & according to the gas flow rate, is superimposed on the fixed plate 33 by the gasket 32b. Because of this structure, (please read the back first (Notes for filling in this page again) After rotating the rotating plate 31, the gas is gradually selected through the orifice 33a, and the amount of gas adjusted by the orifice 33a is supplied to each burner and bg. Also, gas is being changed In this case, it is only necessary to replace the throttle plate 3 3 according to the changed gas type. Order:: ,, <'The stepping motor 3 4 is rotated by a pulse signal supplied from a control device (not shown). In addition, the rotation angle of the drive shaft 34a is proportional to the number of pulses supplied. The present invention is not a feedback control that continuously detects the actual rotation angle of the drive shaft 34a using an encoder or the like, but only uses the number of pulses supplied to advance Open-loop control to control the rotation angle. However, after the gas supply reaches a certain amount, it is necessary to activate an ignition device with an igniter and an ignition electrode (not shown) to ignite the burners Bc and BG, so the stepper motor The camshaft 4 is mounted on the drive shaft of the 34, and the micro switch 5 installed near the cam 4 is set to actuate by the cam 4 being set to on. The ignition is actuated by referring to FIG. After the motor 34 rotates the rotary plate 31, the flow control valve 3 is in an open state. However, the amount of gas supplied by the opening degree at the initial opening is a very small amount equivalent to the amount of weak fire. In this state, even if the ignition is turned on The device cannot be ignited to each of the burners BC and BG by operating the device. To this end, the ignition plate 31 is rotated by about 110. At this point, the ignition device is activated. After the rotation plate is rotated, the interlocking cam 4 is also rotated 11 °. As shown in (b), the cam portion "turns on the micro switch. The position of 110 is set to be slightly weaker than the medium fire position.
1221891 A7 _____B7_ 五、發明説明（5 ) 側。但是，在使旋轉板31旋轉11〇。之狀態，可以點火之量 之瓦斯不能供給至各燃燒器BC、BG。在使點火裝置先行 作動之狀態更使旋轉板3 1旋轉，使瓦斯量增加供給至各燃 燒器BC、BG後，供給之瓦斯量超過可以點火之之瓦斯量， 藉已經作動之點火裝置進行點火。 進一步詳細說明，參照第5圖，對控制裝置作點火指示 後’控制裝置首先將2個之參數之n與Μ重設成〇(si)。而 且，使驅動軸34反轉到變成原點。原點可以藉微開關5變成 OFF檢知。使驅動軸34反轉一定時間，如果在微開關5無法 形成OFF的場合，檢查參數（S3)，在比！小之值也就是〇的 場合，再度使一定時間驅動軸34a反轉進行原點調整（S4)， 同時加1至參數N(S5)。 如此即使進行2度之原點的調整，在微開關5無法形成 OFF的場合由S3進入S6，作為原點錯誤使比等以上之作動 钕止，微開關5被確認變成off後，控制裝置對步進馬達34 供給224脈衝，使旋轉板3丨旋轉。又，224脈衝相當於中火 位置之130°之旋轉角度。 微開關5在如上述之11〇。的位置設定成〇N，11〇。在 本實施型態相當於190。。從而，若沒有異常控制裝置在全 部輸出224脈衝之前，微開關5置於〇N。從而，即使輸出224 脈衝當微開關5未置於on時，在旋轉板3 1發生黏著等之圓 盤作動錯誤，停止其後之控制（S8、S9)。一方面，微開關5 置於ON後，在其時點記憶已經輸出之脈衝數，同時脈衝數 若超過200的話，沒有立即到終止點火動作之程度，但在旋 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公董） ----- (請先閲讀背面之注意事項再填寫本頁) .訂丨 1221891 A71221891 A7 _____B7_ 5. The description of the invention (5). However, the rotating plate 31 is rotated 11 °. In this state, the amount of gas that can be ignited cannot be supplied to each burner BC, BG. When the ignition device is activated in advance, the rotating plate 31 is rotated to increase the amount of gas supplied to each burner BC and BG. The amount of gas supplied exceeds the amount of gas that can be ignited, and the ignition is performed by the activated ignition device. . For further details, referring to FIG. 5, after giving the ignition instruction to the control device, the control device first resets n and M of the two parameters to 0 (si). Furthermore, the drive shaft 34 is reversed to become the origin. The origin can be detected by turning off the micro switch 5. Invert the drive shaft 34 for a certain time. If the micro switch 5 cannot be turned OFF, check the parameter (S3). When the smaller value is 0, the driving shaft 34a is reversed again for a certain time to perform the origin adjustment (S4), and 1 is added to the parameter N (S5). In this way, even if the origin adjustment of 2 degrees is performed, if the micro switch 5 cannot be turned off, S3 enters S6. As the origin error, the above-mentioned actions are stopped. After the micro switch 5 is confirmed to be off, the control device The stepping motor 34 supplies 224 pulses to rotate the rotating plate 3 丨. The 224 pulses correspond to a rotation angle of 130 ° in the middle fire position. The micro switch 5 is at 110 as described above. The position is set to ON, 11. This embodiment corresponds to 190. . Therefore, if there is no abnormal control device, the micro switch 5 is set to ON before all the 224 pulses are output. Therefore, even if the micro switch 5 is not turned on when the 224 pulse is output, a disk operation error such as sticking occurs on the rotary plate 31 and the subsequent control is stopped (S8, S9). On the one hand, after the micro switch 5 is turned ON, the number of pulses that have been output is memorized at the time, and if the number of pulses exceeds 200, it does not immediately reach the level of terminating the ignition. However, the Chinese national standard (CNS ) A4 specification (210X297 public director) ----- (Please read the precautions on the back before filling this page). Order 丨 1221891 A7
轉途中發生度的脫調等’將參數M設定於1(S1()、su、 S12) 〇 (請先閲讀背面之注意事項再填寫本頁) 微開關5置於0N，係表示旋轉板31至少旋轉11〇。，可 以通過流置调節閥3之瓦斯量接近可以點火之瓦斯量。但 疋’在該時點由於安全閥2未開閥，所以瓦斯無法被供給至 燃燒器。微開關5置於〇N後使點火裝置作動（S13)，更使旋 轉板31旋轉。由控制裝置輸出之脈衝數變成224脈衝，到達 中火位置後使步進馬達34停止（S14)。由於變成中火位置後 在其狀悲以供給至燃燒器之瓦斯量可以點火，所以使安全 閥2開閥對燃燒器供給瓦斯，進行點火（$ 1 $)。 安全閥開閥開始對燃燒器供給瓦斯後，1〇秒以内點火 被確認後使點火裝置停止（S16、S17)，1〇秒以内無法確認 著火後進入步驟18(S18)。在上述微開關5置於ON的時點之 步驟數超過200的場合，則在步驟12(S12)將參數M設定成 1。步驟Μ被設定成1乃是發生輕度的失調等錯誤的場合。 參數Μ若為0的話則停止點火裝置使安全閥閉閥後判斷點 火錯誤（S19、S20、S21)。參數μ若被設定為1的話，旋轉 板31判斷未充分的旋轉到中火位置，停止點火裝置使安全 閥2閉閥之後，判斷圓盤作動錯誤（S22、S23、S24)。 如此由於將微開關5置於ON的位置依點火可能位置設 定於閉閥側，所以閥元件1若沒有異常發生的話進行點火操 作後，必定微開關5被置於ON。為此在微開關5沒有被置於 ON的場合，可以檢知發生異常。另外，從微開關5在實際 置於ON的時點之脈衝數到其後之控制中可以修正脈衝 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） -9 _ 1221891 A7 ____ B7 —........ ——____ 五、發明説明（7 ) '~^~ - 數。也就是，在本來190脈衝的位置微開關5應置於⑽，但 貫際將在置於ON的時點之脈衝數與19〇脈衝的差作為誤 差’可以修正點火完成後之控制。 … 另外，由於點火後到熄火為止微開關必須置於〇ff， 所以可以從ON位置之脈衝數與〇FF位置之脈衝數算出滯 後作用。其算出之滞後作用記憶於控制裝置内，使其滞後 作用適用於下次控制時之反轉時的控制。 然而，在本實施型態，由於在流量調節閥3的各個安裝 了安"2,所以在使燃燒器停止之間，在使安全閥2閉闕 之狀態下使步進馬達34旋轉，可以更新修正值與滯後作用 值。另外，如此在使燃燒器停止之狀態使步進馬達34旋轉 後，可以防止〇環與其他之滑動部的黏著。又，在長時間 不使步進馬達34旋轉之狀態進行點火操作的場合，從旋轉 開始暫時使供給至步進馬達34之脈衝信號的周波數降低， 藉使扭矩增大進行黏著對策亦可。 點火燃燒器開始烹調後，有時以中火與強火之間的火 力進仃長時烹調。該場合在長時間的烹調中，由於微開關5 就這樣被置於ON而沒有被置於0FF，所以有可能會產生因 失凋等而累積誤差。在此，微開關5在被置κ〇Ν狀態下供 給至步進馬達34之脈衝數的累積，若超過一定值之後自動 的使步進馬達34驅動至閉閥側，即使使微開關5置於〇FF 進行修正’使其回到原來之位置亦可。 在上述κ %型悲’使步進馬達3 4的旋轉開始後，微開 關5置於〇N旋轉到11〇。之間，實際上控制裝置可以檢知步 本紙張尺度_巾目國規格⑵The degree of out-of-adjustment during the turn, etc. 'Set the parameter M to 1 (S1 (), su, S12) 〇 (Please read the precautions on the back before filling this page) The micro switch 5 is set to 0N, which means the rotating plate 31 Rotate at least 11 °. The amount of gas that can be passed through the flow regulating valve 3 is close to the amount of gas that can be ignited. However, at this point, since the safety valve 2 is not opened, gas cannot be supplied to the burner. After the micro switch 5 is set to ON, the ignition device is operated (S13), and the rotary plate 31 is further rotated. The number of pulses output by the control device becomes 224 pulses, and the stepping motor 34 is stopped after reaching the medium fire position (S14). Since it is in the middle fire position, the amount of gas supplied to the burner can be ignited in its state, so the safety valve 2 is opened to supply gas to the burner and ignite ($ 1 $). When the safety valve is opened and gas is supplied to the burner, the ignition is started within 10 seconds. After confirmation, the ignition is stopped (S16, S17). If the ignition cannot be confirmed within 10 seconds, the process proceeds to step 18 (S18). When the number of steps when the micro switch 5 is turned on exceeds 200, the parameter M is set to 1 in step 12 (S12). Setting step M to 1 is a case where a slight misalignment or the like occurs. If the parameter M is 0, the ignition is stopped and the safety valve is closed to determine the ignition error (S19, S20, S21). If the parameter μ is set to 1, the rotary plate 31 judges that the rotary plate 31 is not sufficiently rotated to the intermediate fire position, stops the ignition device and closes the safety valve 2, and then judges that the disc is operating incorrectly (S22, S23, S24). As described above, since the micro switch 5 is set to the ON position on the valve closing side according to the possible ignition position, the micro switch 5 must be turned ON after the ignition operation of the valve element 1 if no abnormality occurs. For this reason, when the micro switch 5 is not turned ON, it can be detected that an abnormality has occurred. In addition, from the number of pulses of the micro switch 5 when it is actually turned on to the subsequent control, the pulses can be corrected. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -9 _ 1221891 A7 ____ B7 — ........ ——____ 5. Description of the invention (7) '~ ^ ~-number. That is, the micro switch 5 should be set to ⑽ at the original position of 190 pulses, but the difference between the number of pulses at the time of turning ON and the 19 pulse can be used as the error 'to correct the control after the ignition is completed. … In addition, since the micro switch must be set to 0ff after ignition to flameout, the hysteresis effect can be calculated from the number of pulses in the ON position and the number of pulses in the 0FF position. The calculated hysteresis is memorized in the control device, so that the hysteresis is suitable for the control during the next reversal of the control. However, in this embodiment mode, since each of the flow regulating valves 3 is provided with "2", it is possible to rotate the stepping motor 34 with the safety valve 2 closed while stopping the burner. Updated correction and hysteresis values. In addition, after the stepping motor 34 is rotated in a state where the burner is stopped in this way, adhesion of the O-ring and other sliding portions can be prevented. When the ignition operation is performed without rotating the stepping motor 34 for a long period of time, the cycle number of the pulse signal supplied to the stepping motor 34 may be temporarily reduced from the start of the rotation, and the countermeasure may be made by increasing the torque. After the ignition burner starts cooking, it may be cooked for a long time with the power between medium and strong fire. In this case, since the micro switch 5 is turned ON without being set to 0FF during long-term cooking, there is a possibility that a cumulative error may occur due to loss or the like. Here, the accumulation of the number of pulses supplied to the stepping motor 34 by the micro switch 5 when it is set to κON, and if it exceeds a certain value, the stepping motor 34 is automatically driven to the valve closing side, even if the micro switch 5 is set Correct it at 0FF to return it to its original position. After the rotation of the stepping motor 34 is started by the above κ% type sadness, the micro switch 5 is set to rotate from 0N to 110. In fact, the control device can detect the paper size.
• — (請先閲讀背面之注意事項再填寫本頁) 售· 1221891 A7 __________ B7 _ 五、發明説明（8 ) 進馬達34的旋轉。在此，如第6圖所示，形成段部42，即使 在步進馬達34開始旋轉後微開關5之第i接點立即置於ON 亦可。該微開關5具有第1接點與第2接點。藉段部42第1接 點被置於ON(b)，更藉凸輪41第2接點被置於ON。 然而’在上述實施型態，將凸輪4作為1段使用1個之微 開關5，但是即使將凸輪4作成2段同時使其對應於各凸輪4 安裝2個之微開關5，構成一方之微開關在中火位置被置於 ON，另外一方之微開關在強火位置被置於on亦可。如此 藉设置2個微開關可以自由選擇中火點火與強火點火亦可。 <發明的效果> 由以上的說明可以明白，本發明係使用步進馬達於流 量調節機構的驅動，藉供給至步進馬達之脈衝數構成調節 流量調節機構的開度的場合，由於將因失調等修正脈衝數 的偏差之位置，設定於靠近流量調節機構的開度形成點火 所需之瓦斯量的位置之全閉側，所以由開閥到閉閥之間由 於一定要通過其開度，所以可以做確實的修正。 <圖面的簡單說明〉 第1圖為表示瓦斯器具之全體構造之區域圖。 第2圖為表示閥元件的構造之截面圖。 第3圖為表示圓盤部分的構造。 第4圖（a)(b)為表示凸輪的動作之圖。 第5圖為表示點火時之控制流程之流程圖。 弟6圖⑷〜(c)為表示其他實施形態中之凸輪的動 本紙張尺Μ用巾關家鮮（CNS) (請先閲讀背面之注意事項再填寫本頁) 訂_ 1221891 A7 B7 五、發明説明（9 ) 元件標號對照 1···閥元件 2…安全閥 3···流量調節閥 4…凸輪 5···微動開關 31…旋轉板 32…固定板 3 3…節流板 3 4…步進馬達 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） -12 一• — (Please read the precautions on the back before filling this page) Sale · 1221891 A7 __________ B7 _ V. Description of the invention (8) Rotation of the motor 34. Here, as shown in FIG. 6, the segment portion 42 is formed, even if the i-th contact of the micro switch 5 is turned ON immediately after the stepping motor 34 starts to rotate. This micro switch 5 has a first contact point and a second contact point. The first contact of the borrowing section 42 is turned on (b), and the second contact of the borrowing cam 41 is turned on. However, in the above-mentioned embodiment, one micro switch 5 is used for the cam 4 as one segment, but even if the cam 4 is made into two segments and two micro switches 5 are installed corresponding to each cam 4, it constitutes one micro switch. The switch can be set to ON in the medium fire position, and the other micro switch can be set to on in the high fire position. In this way, by setting two micro switches, you can freely choose between medium-fire ignition and high-fire ignition. < Effect of the invention > As can be understood from the above description, the present invention uses a stepping motor to drive the flow adjustment mechanism, and the number of pulses supplied to the step motor is used to adjust the opening degree of the flow adjustment mechanism. The position of the correction of the number of pulses due to misalignment is set to the fully closed side near the position where the opening degree of the flow adjustment mechanism forms the gas amount required for ignition. Therefore, the opening degree must be passed from the valve opening to the closing valve. , So you can make a positive correction. < Brief description of drawings> Fig. 1 is an area diagram showing the overall structure of a gas appliance. Fig. 2 is a sectional view showing a structure of a valve element. Fig. 3 shows the structure of the disc portion. 4 (a) and 4 (b) are diagrams showing the operation of the cam. Fig. 5 is a flowchart showing a control flow during ignition. Brother 6 Figures) ~ (c) shows the moving paper of the cam in another embodiment. The paper towel is used to close the house (CNS) (Please read the precautions on the back before filling this page.) Order _ 1221891 A7 B7 V. Description of the invention (9) Component number comparison 1 ... Valve element 2 ... Safety valve 3 ... Flow regulating valve 4 ... Cam 5 ... Micro switch 31 ... Rotating plate 32 ... Fixed plate 3 3 ... Throttle plate 3 4 … Stepper motor (please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210X297 mm) -12 一