JP3748061B2 - Gas valve - Google Patents

Gas valve Download PDF

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Publication number
JP3748061B2
JP3748061B2 JP2002011278A JP2002011278A JP3748061B2 JP 3748061 B2 JP3748061 B2 JP 3748061B2 JP 2002011278 A JP2002011278 A JP 2002011278A JP 2002011278 A JP2002011278 A JP 2002011278A JP 3748061 B2 JP3748061 B2 JP 3748061B2
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Japan
Prior art keywords
gas
valve
flow rate
holes
communication hole
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JP2002011278A
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Japanese (ja)
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JP2003214619A (en
Inventor
雄一 林
圭一 水谷
正則 清水
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Rinnai Corp
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Rinnai Corp
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Priority to JP2002011278A priority Critical patent/JP3748061B2/en
Priority to KR1020030002735A priority patent/KR100661056B1/en
Priority to TW092101149A priority patent/TW571052B/en
Priority to CNB031029167A priority patent/CN1260513C/en
Publication of JP2003214619A publication Critical patent/JP2003214619A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/002Gaseous fuel
    • F23K5/007Details

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Multiple-Way Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、特に、上火バーナーと下火バーナーとを設けたグリルにおいて、各バーナーへの燃料ガスの供給量を制御するガスバルブに関する。
【0002】
【従来の技術】
近年、ガスコンロに一体に設けたグリルでは、調理時に焼き網に載置した魚等の被調理物をひっくり返す手間を省きグリルの使い勝手を向上させる目的で、両面焼きに構成することが提案されている。このため、グリル庫の天井部には上火バーナーが、焼き網の下方であってグリル庫の両内側壁には左右の下火バーナーがそれぞれ設けられる。
【0003】
この場合、上火及び下火の各バーナーを独立して火力調節ができるよう各バーナー毎に、燃料ガスの供給を制御する開閉弁と燃料ガスのガス流量を調節する流量調節弁とを有するガスバルブを設けることもできるが、これではコスト高を招く。
【0004】
ところで、魚等を調理するグリルは元来、例えば煮物調理を行うコンロ部に設けたガスバーナーのように微細な絞り性能は要求されず、上火バーナー及び下火バーナー毎にそれぞれ大小2種類の火力ポジションが設定できれば、調理者に不便な感覚を与えない。
【0005】
このような観点から、特願2001−129312号明細書には、第1連通孔を備えた固定ディスクと、第2連通孔を有する回転ディスクであってモータで回転されるものとを備えた流量調節弁を設けたガスバルブが開示されている。このものでは、1個のガスバルブで上火及び下火の各バーナーへの燃料ガスの供給とガス流量調節とを行う。
【0006】
この場合、固定ディスクに形成された4個の第1連通孔は、ガス流量を大とする2個の孔と、ガス流量を小とする2個の孔とから構成され、大小一対の孔を各ガス流出部にぞれぞれ一致させて配置している。そして、回転ディスクを回転させて、ガス流出部毎に第2連通孔を第1連通孔のいずれか一方とそれぞれ一致させることで、上火バーナー及び下火バーナー毎に、強及び弱の2種類の火力ポジションが設定できる。
【0007】
【発明が解決しようとする課題】
しかしながら、上記ものは流量調節弁に閉止機能を持たせている。即ち、固定ディスクに別個の貫通孔を設け、該貫通孔を介して第1連通孔と第2連通孔とが連通している間だけガス流出部に燃料ガスが流れる。
【0008】
このため、上火及び下火の各バーナーの火力ポジションの組合せは3種類にしかできず、使い勝手が悪いという問題があった。即ち、各バーナー使用時に、第2連通孔と貫通孔とを常時一致させておく必要があるため、例えば上火バーナーが強、下火バーナーが弱となるガス流量に調節できるように第2連通路を設定すると、上火バーナーが弱、下火バーナーが強となるガス流量を設定できない。
【0009】
また、このものでは、閉止機能を有する流量調節弁自体にシール性が要求されるため、回転ディスクや固定ディスクを高精度で加工したり、シール性の高い高価なシール材が必要になる等、全体としてコスト高を招くという問題があった。
【0010】
そこで、本発明は、上記問題点に鑑み、上火及び下火の各バーナー毎に2個の火力ポジションが設定できると共にそれらのポジションの切換えが円滑であり、その上、低コストで製作できるガスバルブを提供することを課題とするものである。
【0011】
【課題を解決するための手段】
この課題を解決するため、本発明のガスバルブは、内部通路を備えたバルブケーシングを備え、該バルブケーシングに、内部通路を介して相互に連通するガス流入部と2個のガス流出部とを開設すると共に、該内部通路に、燃料ガスの供給を制御する開閉弁と燃料ガスのガス流量を調節する流量調節弁とを設けたガスバルブにおいて、 該流量調節弁は、4個の第1連通孔を有する固定ディスクと、バルブケーシングに設けた駆動手段の回転軸によって回転され所定の回転角だけ回転すると第1連通孔に一致する第2連通孔を有する回転ディスクとを有し、4個の第1連通孔を、ガス流量を大とする2個の孔と、ガス流量を小とする2個の孔とから構成し、大小一対の孔を各ガス流出部にぞれぞれ一致させかつ相互に対向させて同一円周上に配置し、駆動手段を介して回転ディスクを回転させて、ガス流出部毎に、第2連通孔を第1連通孔の大小いずれか一方の孔と一致させ、ガス流出部毎に大小いずれか一方のガス流量に調節できるようにしたことを特徴とする。
【0012】
本発明によれば、開閉弁を開弁すると燃料ガスが内部通路に流入する。そして、
回転ディスクを回転させてガス流出部毎に、第2連通孔を第1連通孔の大小いずれか一方の孔と一致させると、その一致した第1連通孔に対応した流量の燃料ガスが各ガス流出部にそれぞれ供給される。
【0013】
そして、一方のガス流出部への燃料ガスのガス流量を変更する場合は、それに対応して回転ディスクを回転させて、そのガス流出部に一致した大小いずれか一方の第1連通孔に第2連通孔を一致させることで、ガス流量を切換えることができる。
【0014】
この場合、大小一対の孔を各ガス流出部にそれぞれ一致させかつ相互に対向させて同一円周上に配置しているので、回転ディスクを回転させることで、一方のガス流出部へのガス流量大及び他方のガス流出部へのガス流量大から、一方のガス流出部へのガス流量大及び他方のガス流出部へのガス流量小、並びに一方のガス流出部へのガス流量小大及び他方のガス流出部へのガス流量小を経て、一方のガス流出部へのガス流量小及び他方のガス流出部へのガス流量大までをサイクル的に切換えることができる。
【0015】
また、前記駆動手段により前記回転ディスクが正逆転可能とすれば、回転ディスクの回転位置を把握して回転方向を選択すれば、一方のガス流量部へのガス流量の切換えを迅速かつ円滑に行い得る。
【0016】
【発明の実施の形態】
図1及び図2を参照して、1は、例えばブンゼン式の上火バーナー及び下火バーナー(図示せず)を備えたグリルに使用する本発明のガスバルブである。ガスバルブ1は、内部通路11を備えたバルブケーシング12を有する。
【0017】
バルブケーシング12の一端部(図1の右側)には、内部通路11に連通するガス流入部13が設けられ、該ガス流入部13の下流側には燃料ガスの供給を制御する開閉弁である電磁弁2が設けられている。
【0018】
バルブケーシング12の他端部(図1の左側)には、内部通路11に連通する相互に独立した2個のガス通路14a、14bを有するガス流出部14が設けられている。そして、各ガス通路14a、14bが上火及び下火の各バーナーの混合管に接続される。
【0019】
また、バルブケーシング12には、電磁弁2の下流側であってガス流出部14の上流側に位置して上火及び下火の各バーナーの不安定燃焼を発生させ得る燃料ガスの圧力変動を減衰させるガバナ弁3が設けられている。
【0020】
該ガバナ弁3は、バルブケーシング12の外周面に連結されたガバナ弁本体31を有し、該ガバナ弁本体31の内部には、内部通路11内に設けた弁座32方向にばね33で付勢されたダイヤフラム34が収容されている。そして、ガバナ弁3の下流側とガス流出部14との間には流量調節弁4が介設されている。
【0021】
該流量調節弁4は、バルブケーシング12にシール材41を介して嵌着した円形の固定ディスク42と、その下側の円形の回転ディスク43とを有する。ここで、流量調節弁4に閉止機能を持たせたのでは、火力ポジションの組合せが減少する等の問題が生じる。
【0022】
本実施の形態では、流量制御弁4には閉止機能を持たせず、燃料ガスの供給の制御は電磁弁2のみで行うこととした。このため、流量制御弁4自体に高度のシール性が要求されないので、高精度で加工する必要はなく、シール性を確保するシール材41の材質やグリース等において自由度が増し、コスト低減を図れる。
【0023】
図3及び図4を参照して、固定ディスク42には4個の円形の第1連通孔44a、44b、45a、45bが設けられている。第1連通孔44a、44b、45a、45bは、上火及び下火の各バーナーの火力を強とするガス流量の燃料ガスをガス流出部14に流す開口面積に設定された2個の大孔44a、45aと、各バーナーの火力を弱とするガス流量の燃料ガスをガス流出部14に流す開口面積に設定された2個の小孔44b、45bとから構成され、所定の間隔を置いて同一円周上に配置されている。
【0024】
そして、図3に示すように、シール材41に仕切部41aを設けて、相互に対向する大小一対の孔44a、44b、45a、45bをガス流出部14の各ガス通路14a、14bにぞれぞれ一致するようにしている。
【0025】
回転ディスク43は、図1に示すように、バルブケーシング12に付設したギアドモータ、ステッピングモータ等のモータ5の回転軸51により回転自在である。この場合、回転軸51には回転角検出手段52が付設され、回転ディスク43の回転位置が検出できる。また、回転ディスク43には1個の第2連通孔46が設けられている。
【0026】
図4に示すように、該第2連通孔46は、固定ディスク42の第1連通孔44a、44b、45a、45bの相互に隣接する2個の孔に同時に一致でき、かつ火力を変更する場合、その火力を変更する一方のガス通路14a、14bに一致した大小一対の孔44a、44bまたは45a、45bを同時にふさがない大きさを有する円周方向の長孔である。
【0027】
これにより、モータ5により回転ディスク43を回転させ、第2連通孔46を第1連通孔の2個の孔44a、44b、45a、45bに順次一致させることで、上火バーナー強、下火バーナー強の状態から、上火バーナー強、下火バーナー弱の状態、及び上火バーナーか弱、下火バーナー弱の状態を経て上火バーナー弱、下火バーナー強の状態までをサイクル的に切換えることができる(図5参照)。
【0028】
この場合、回転ディスク43が正逆転自在であるようにモータ5を構成するのがよい。例えば、ガスバルブ1の作動を制御する制御部(図示せず)に、上火及び下火の各バーナーの各火力対応した回転軸51の回転角を記憶させておき、上火バーナーまたは下火バーナーのいずれかの火力を変更する際に、回転角検出手段52で検出した回転軸51の回転角と記憶した回転角とからディスク43の回転方向を決定し、その方向に回転ディスク43を回転させることで迅速かつ円滑に上火バーナーまたは下火バーナーの火力切換えが可能になる。
【0029】
尚、本実施の形態のガスバルブ1の制御スイッチとしては、例えば、上火及び下火の各バーナーの点火/消火させる調理開始タッチスイッチと、上火及び下火の各バーナーについてぞれぞれ強または弱を選択する火力変更タッチスイッチとを設けたものが挙げられる。尚、上火及び下火の各バーナーの点火時には、回転ディスク43の第2連通孔46がそれぞれ大孔44a、45aと一致させるようにするのがよい。
【0030】
以下に、図4及び図5を参照して、本実施の形態のガスバルブ1の作用を説明する。調理開始タッチスイッチをONにすると、上火及び下火の各バーナーの着火を容易するため、回転ディスク43の第2連通孔46が第1連通孔の各大孔44a、45aに一致するように回転ディスク43を回転する。この場合、回転角検出手段52による回転軸51の回転角は0度である。
【0031】
次いで、電磁弁2を開弁する。この場合、内部通路11に燃料ガスが流入してガバナ弁3が開弁し、流量調節弁4を介してガス流出部14の各ガス通路14a、14bに燃料ガスが供給される。この場合、上火及び下火の各バーナーの火力を強にするガス流量の燃料ガスが各バーナーの混合管に供給される。そして、各バーナーの点火操作が行われる。
【0032】
ここで、例えば、下火バーナーの火力を変えるため、火力弱の火力変更タッチスイッチを押すと、ガスバルブ1の作動を制御する制御部に記憶された各バーナーの火力に対応した回転角と、回転角検出手段52による回転軸51の回転角とからモータ5の回転方向が先ず決定される。
【0033】
例えば、制御部に記憶させた上火バーナー強、下火バーナー弱に対応する回転角が90度とすると、モータ5は、図5に▲1▼で示す正方向に回転軸51を、回転ディスク43の第2連通孔46が第1連通孔の小孔45bに一致するまで回転させる(回転角検出手段52による回転角90度、図4(b)参照)。
【0034】
この場合、回転ディスク43が回転する間、上火バーナーの火力を強にする第1連通孔の大孔44aは第2連通孔46と一致したままであるため、上火バーナーの火力は変更されない。
【0035】
この状態から上火バーナーの火力を変えるため、火力弱の火力変更タッチスイッチを押すと(この場合、制御部に記憶させた上火バーナー弱、下火バーナー弱に対応する回転角が180度とする)、上記と同様にして、モータ5の回転方向が▲1▼方向に決定され、モータ5は、回転軸51を、第2連通孔46が第1連通孔の小孔44bに一致するまで回転させる(回転角検出手段52による回転角180度、図4(C)参照)。
【0036】
この状態から下火バーナーの火力を変えるため、火力強の火力変更タッチスイッチを押すと(この場合、制御部に記憶させた上火バーナー弱、下火バーナー強に対応する回転角が270度とする)、モータ5の回転方向が▲1▼方向に決定され、モータ5によって回転軸51を、第2連通孔46が第1連通孔の大孔45aに一致するまで回転させる(回転角検出手段52による回転角270度、図4(d)参照)。
【0037】
それに対して、上火バーナー弱、下火バーナー弱の状態から、上火バーナーの火力を変えるため、火力強の火力変更タッチスイッチを押すと、本実施の形態では、制御部に記憶させた上火バーナー強、下火バーナー弱に対応する回転角が90度であるから、図5に▲2▼で示す逆方向に回転軸51を回転させることが決定される。そして、モータ5は、回転軸51を、によって回転ディスク43の第2連通孔46が第1連通孔の大孔45aに一致するまで回転させる(回転角検出手段52による回転角90度、図4(b)参照)。
【0038】
【発明の効果】
以上説明したように、本発明のガスバルブでは、上火及び下火の各バーナー毎に2個の火力ポジションが設定できる共にそれらのポジションの切換えが円滑であり、その上、低コストで製作できるという効果を奏する。
【図面の簡単な説明】
【図1】本発明のガスバルブの断面図
【図2】本発明のガスバルブの上面図
【図3】シール材の上面図
【図4】(a)、(b)、(c)及び(d)は、上火及び下火の各バーナーの火力と、固定ディスクに対する回転ディスクの回転位置との関係を説明する図
【図5】上火及び下火の各バーナーの火力の切換えを説明する図
【符号の説明】
1 ガスバルブ
11 バルブケーシング
12 内部通路
15 内部通路
2 開閉弁
4 流量調節弁
42 固定ディスク
43 回転ディスク
44a、44b、45a、45b 第1連通孔
46 第2連通孔
[0001]
BACKGROUND OF THE INVENTION
The present invention particularly relates to a gas valve that controls the amount of fuel gas supplied to each burner in a grill provided with an upper fire burner and a lower fire burner.
[0002]
[Prior art]
In recent years, it has been proposed that the grill provided integrally with the gas stove is configured to be double-sided for the purpose of improving the usability of the grill by eliminating the trouble of turning over the food to be cooked such as fish placed on the grill during cooking. . For this reason, an upper fire burner is provided on the ceiling of the grill cabinet, and left and right lower fire burners are provided on the inner walls of the grill cabinet below the grill net.
[0003]
In this case, a gas valve having an open / close valve for controlling the supply of fuel gas and a flow rate adjusting valve for adjusting the gas flow rate of the fuel gas for each burner so that the heating power of each of the upper and lower burners can be adjusted independently. However, this increases the cost.
[0004]
By the way, the grill for cooking fish and the like originally does not require fine squeezing performance like a gas burner provided in a stove for cooking boiled food, for example, two types of large and small for each of the upper and lower burners. If the firepower position can be set, the inconvenience is not given to the cook.
[0005]
From this point of view, Japanese Patent Application No. 2001-12912 discloses a flow rate including a stationary disk having a first communication hole and a rotating disk having a second communication hole and rotated by a motor. A gas valve provided with a control valve is disclosed. In this device, the fuel gas is supplied to each of the upper and lower burners and the gas flow rate is adjusted with one gas valve.
[0006]
In this case, the four first communication holes formed in the fixed disk are composed of two holes for increasing the gas flow rate and two holes for decreasing the gas flow rate. The gas outlets are arranged so as to coincide with each other. Then, by rotating the rotating disk and making the second communication hole coincide with one of the first communication holes for each gas outflow part, two types of strong and weak for each of the upper fire burner and the lower fire burner The fire power position can be set.
[0007]
[Problems to be solved by the invention]
However, the above provides the flow regulating valve with a closing function. That is, a separate through hole is provided in the fixed disk, and the fuel gas flows to the gas outflow portion only while the first communication hole and the second communication hole communicate with each other through the through hole.
[0008]
For this reason, there are only three types of combinations of the thermal power positions of the upper and lower burners, and there is a problem that the usability is poor. That is, when each burner is used, the second communication hole and the through-hole must always be matched, so that, for example, the second communication hole can be adjusted to have a gas flow rate at which the upper fire burner is strong and the lower fire burner is weak. When the passage is set, the gas flow rate at which the upper fire burner is weak and the lower fire burner is strong cannot be set.
[0009]
In addition, in this case, since the sealing performance is required for the flow control valve itself having a closing function, a rotating disk and a fixed disk are processed with high accuracy, and an expensive sealing material with high sealing performance is required. As a whole, there was a problem of incurring high costs.
[0010]
Therefore, in view of the above problems, the present invention is capable of setting two thermal power positions for each burner of the upper fire and the lower fire, switching between the positions smoothly, and, moreover, a gas valve that can be manufactured at a low cost. It is a problem to provide.
[0011]
[Means for Solving the Problems]
In order to solve this problem, a gas valve according to the present invention includes a valve casing having an internal passage, and a gas inflow portion and two gas outflow portions that communicate with each other via the internal passage are opened in the valve casing. And a gas valve provided with an on-off valve for controlling the supply of fuel gas and a flow rate regulating valve for regulating the gas flow rate of the fuel gas in the internal passage, wherein the flow rate regulating valve has four first communication holes. A fixed disk having a rotating disk having a second communication hole that is rotated by a predetermined rotation angle and rotated by a rotation shaft of a driving means provided in the valve casing; The communication hole is composed of two holes for increasing the gas flow rate and two holes for decreasing the gas flow rate, and a pair of large and small holes are made to coincide with each gas outflow portion and Oppositely arranged on the same circumference And rotating the rotating disk through the driving means to make the second communication hole coincide with one of the first communication hole for each gas outflow portion, and either one of the large or small for each gas outflow portion. The gas flow rate can be adjusted.
[0012]
According to the present invention, the fuel gas flows into the internal passage when the on-off valve is opened. And
When the rotary disk is rotated and the second communication hole is made to coincide with one of the large and small holes of the first communication hole for each gas outflow portion, the flow rate of fuel gas corresponding to the matched first communication hole is changed to each gas. Each is supplied to the outflow part.
[0013]
And when changing the gas flow rate of the fuel gas to one gas outflow part, a rotating disk is rotated corresponding to it and the 2nd one is connected to the 1st communicating hole of the big or small corresponding to the gas outflow part. The gas flow rate can be switched by matching the communication holes.
[0014]
In this case, since the pair of large and small holes are arranged on the same circumference so as to coincide with each gas outflow part and face each other, the gas flow rate to one gas outflow part can be achieved by rotating the rotating disk. From the large gas flow rate to the large and other gas outflow portion, the large gas flow rate to the one gas outflow portion, the small gas flow rate to the other gas outflow portion, and the small and large gas flow rate to the one gas outflow portion. Through the small gas flow rate to the gas outflow part, the gas flow rate to one gas outflow part and the gas flow rate to the other gas outflow part can be switched cyclically.
[0015]
Further, if the rotating disk can be rotated forward and backward by the driving means, the gas flow rate to one gas flow rate can be switched quickly and smoothly by grasping the rotational position of the rotating disk and selecting the rotation direction. obtain.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2, reference numeral 1 denotes a gas valve of the present invention used for a grill provided with, for example, a Bunsen type upper fire burner and a lower fire burner (not shown). The gas valve 1 has a valve casing 12 with an internal passage 11.
[0017]
A gas inflow portion 13 that communicates with the internal passage 11 is provided at one end of the valve casing 12 (on the right side in FIG. 1), and an open / close valve that controls the supply of fuel gas downstream of the gas inflow portion 13. An electromagnetic valve 2 is provided.
[0018]
A gas outflow portion 14 having two mutually independent gas passages 14 a and 14 b communicating with the internal passage 11 is provided at the other end portion (left side in FIG. 1) of the valve casing 12. And each gas passage 14a, 14b is connected to the mixing pipe of each burner of upper fire and lower fire.
[0019]
Further, the valve casing 12 is provided with a pressure fluctuation of the fuel gas that is located downstream of the electromagnetic valve 2 and upstream of the gas outflow portion 14 and can cause unstable combustion of each of the burners of the upper flame and the lower flame. A governor valve 3 for damping is provided.
[0020]
The governor valve 3 has a governor valve main body 31 connected to the outer peripheral surface of the valve casing 12, and the governor valve main body 31 is attached to the valve seat 32 provided in the internal passage 11 by a spring 33. The urged diaphragm 34 is accommodated. A flow rate adjusting valve 4 is interposed between the downstream side of the governor valve 3 and the gas outflow portion 14.
[0021]
The flow rate adjusting valve 4 has a circular fixed disk 42 fitted to the valve casing 12 via a sealing material 41 and a circular rotating disk 43 below the circular fixed disk 42. Here, if the flow regulating valve 4 is provided with a closing function, problems such as a decrease in the combination of thermal power positions occur.
[0022]
In the present embodiment, the flow rate control valve 4 is not provided with a closing function, and the fuel gas supply control is performed only by the electromagnetic valve 2. For this reason, since the flow control valve 4 itself is not required to have a high degree of sealing performance, it is not necessary to process it with high accuracy, and the degree of freedom increases in the material of the sealing material 41 and grease, etc. that ensure the sealing performance, thereby reducing costs. .
[0023]
3 and 4, the fixed disk 42 is provided with four circular first communication holes 44a, 44b, 45a, 45b. The first communication holes 44 a, 44 b, 45 a, 45 b are two large holes set to have an opening area through which fuel gas having a gas flow rate that makes the heating power of each of the upper and lower burners stronger flows to the gas outflow portion 14. 44a and 45a, and two small holes 44b and 45b set in an opening area through which the fuel gas having a gas flow rate that weakens the thermal power of each burner flows to the gas outflow portion 14, with a predetermined interval. They are arranged on the same circumference.
[0024]
Then, as shown in FIG. 3, a partition 41 a is provided in the seal material 41, and a pair of large and small holes 44 a, 44 b, 45 a, 45 b facing each other are respectively connected to the gas passages 14 a, 14 b of the gas outlet 14. It is trying to match each other.
[0025]
As shown in FIG. 1, the rotating disk 43 is rotatable by a rotating shaft 51 of a motor 5 such as a geared motor or a stepping motor attached to the valve casing 12. In this case, a rotation angle detector 52 is attached to the rotary shaft 51 so that the rotational position of the rotary disk 43 can be detected. The rotating disk 43 is provided with one second communication hole 46.
[0026]
As shown in FIG. 4, the second communication hole 46 can coincide with the two adjacent holes of the first communication holes 44a, 44b, 45a, 45b of the fixed disk 42 at the same time, and the heating power is changed. , A pair of large and small holes 44a, 44b or 45a, 45b that coincide with one of the gas passages 14a, 14b that change the heating power are circumferentially long holes having a size that does not block simultaneously.
[0027]
As a result, the rotary disc 43 is rotated by the motor 5, and the second communication hole 46 is sequentially aligned with the two holes 44a, 44b, 45a, 45b of the first communication hole, so that the upper fire burner strength and lower fire burner are increased. Cycle from high to low, overfire burner, low overfire burner, low overfire burner, low overfire burner, low overburner low, overfire burner over low (See FIG. 5).
[0028]
In this case, it is preferable to configure the motor 5 so that the rotating disk 43 can freely rotate forward and backward. For example, a control unit (not shown) that controls the operation of the gas valve 1 stores the rotation angle of the rotary shaft 51 corresponding to each heating power of each of the upper and lower fire burners, and the upper fire burner or the lower fire burner. When changing one of the heating powers, the rotation direction of the disk 43 is determined from the rotation angle of the rotation shaft 51 detected by the rotation angle detection means 52 and the stored rotation angle, and the rotation disk 43 is rotated in that direction. This makes it possible to quickly and smoothly switch the heating power of the upper fire burner or the lower fire burner.
[0029]
As the control switch for the gas valve 1 of the present embodiment, for example, a cooking start touch switch for igniting / extinguishing each of the upper and lower fire burners and each of the upper and lower fire burners are strong. Or what provided the thermal power change touch switch which selects weak is mentioned. It should be noted that the second communication hole 46 of the rotary disk 43 is preferably aligned with the large holes 44a and 45a when the upper and lower burners are ignited.
[0030]
Below, with reference to FIG.4 and FIG.5, the effect | action of the gas valve 1 of this Embodiment is demonstrated. When the cooking start touch switch is turned on, the second communication hole 46 of the rotating disk 43 is aligned with the large holes 44a and 45a of the first communication hole in order to facilitate the ignition of the upper and lower burners. The rotating disk 43 is rotated. In this case, the rotation angle of the rotation shaft 51 by the rotation angle detection means 52 is 0 degree.
[0031]
Next, the solenoid valve 2 is opened. In this case, the fuel gas flows into the internal passage 11 to open the governor valve 3, and the fuel gas is supplied to the gas passages 14 a and 14 b of the gas outflow portion 14 via the flow rate adjustment valve 4. In this case, a fuel gas having a gas flow rate that enhances the heating power of each of the upper and lower burners is supplied to the mixing tube of each burner. And the ignition operation of each burner is performed.
[0032]
Here, for example, in order to change the thermal power of the lower fire burner, when the thermal power change touch switch of low thermal power is pressed, the rotation angle corresponding to the thermal power of each burner stored in the control unit that controls the operation of the gas valve 1 and the rotation The rotation direction of the motor 5 is first determined from the rotation angle of the rotation shaft 51 by the angle detection means 52.
[0033]
For example, when the rotation angle corresponding to the upper fire burner strength and lower fire burner weakness stored in the control unit is 90 degrees, the motor 5 moves the rotary shaft 51 in the positive direction indicated by (1) in FIG. The second communication hole 43 is rotated until it coincides with the small hole 45b of the first communication hole (rotation angle of 90 degrees by the rotation angle detection means 52, see FIG. 4B).
[0034]
In this case, while the rotary disk 43 rotates, the large hole 44a of the first communication hole that strengthens the heating power of the upper fire burner remains coincident with the second communication hole 46, so the heating power of the upper fire burner is not changed. .
[0035]
In order to change the thermal power of the upper fire burner from this state, when the thermal power change touch switch of the lower thermal power is pressed (in this case, the rotation angle corresponding to the upper fire burner weak and lower fire burner weak stored in the control unit is 180 degrees) In the same manner as described above, the rotation direction of the motor 5 is determined to be the (1) direction, and the motor 5 moves the rotation shaft 51 until the second communication hole 46 coincides with the small hole 44b of the first communication hole. Rotate (rotation angle 180 degrees by the rotation angle detection means 52, see FIG. 4C).
[0036]
In order to change the fire power of the lower fire burner from this state, when the heat power change touch switch is pressed (in this case, the rotation angle corresponding to the upper fire burner weakness and the lower fire burner strength stored in the control unit is 270 degrees) The rotation direction of the motor 5 is determined as the direction (1), and the motor 5 rotates the rotation shaft 51 until the second communication hole 46 coincides with the large hole 45a of the first communication hole (rotation angle detecting means). 52, the rotation angle is 270 degrees, see FIG. 4D).
[0037]
On the other hand, in order to change the heating power of the upper fire burner from the upper fire burner weak state and the lower fire burner weak state, when the thermal power change touch switch is pressed in the present embodiment, Since the rotation angle corresponding to the strong fire burner and the low fire burner is 90 degrees, it is determined to rotate the rotating shaft 51 in the reverse direction indicated by (2) in FIG. Then, the motor 5 rotates the rotary shaft 51 until the second communication hole 46 of the rotary disk 43 coincides with the large hole 45a of the first communication hole (rotation angle 90 degrees by the rotation angle detection means 52, FIG. 4). (See (b)).
[0038]
【The invention's effect】
As described above, in the gas valve of the present invention, two thermal power positions can be set for each of the upper and lower burners, and the switching between the positions is smooth, and furthermore, it can be manufactured at low cost. There is an effect.
[Brief description of the drawings]
1 is a cross-sectional view of a gas valve of the present invention. FIG. 2 is a top view of a gas valve of the present invention. FIG. 3 is a top view of a sealing material. FIG. 4 (a), (b), (c) and (d) Fig. 5 is a diagram for explaining the relationship between the heating power of each burner for upper and lower fires and the rotational position of the rotating disk with respect to the fixed disk. Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Gas valve 11 Valve casing 12 Internal passage 15 Internal passage 2 On-off valve 4 Flow control valve 42 Fixed disk 43 Rotating disks 44a, 44b, 45a, 45b First communication hole 46 Second communication hole

Claims (2)

内部通路を備えたバルブケーシングを備え、該バルブケーシングに、内部通路を介して相互に連通するガス流入部と2個のガス流出部とを開設すると共に、該内部通路に、燃料ガスの供給を制御する開閉弁と燃料ガスのガス流量を調節する流量調節弁とを設けたガスバルブであって、
該流量調節弁は、4個の第1連通孔を有する固定ディスクと、バルブケーシングに設けた駆動手段の回転軸によって回転され所定の回転角だけ回転すると第1連通孔に一致する第2連通孔を有する回転ディスクとを有し、
4個の第1連通孔を、ガス流量を大とする2個の孔と、ガス流量を小とする2個の孔とから構成し、大小一対の孔を各ガス流出部にぞれぞれ一致させかつ相互に対向させて同一円周上に配置し、
駆動手段を介して回転ディスクを回転させて、ガス流出部毎に、第2連通孔を第1連通孔の大小いずれか一方の孔と一致させ、ガス流出部毎に大小いずれか一方のガス流量に調節できるようにしたことを特徴とするガスバルブ。
A valve casing having an internal passage is provided, and a gas inflow portion and two gas outflow portions communicating with each other through the internal passage are opened in the valve casing, and fuel gas is supplied to the internal passage. A gas valve provided with an on-off valve to be controlled and a flow rate regulating valve for regulating the gas flow rate of the fuel gas,
The flow rate adjusting valve is rotated by a fixed disk having four first communication holes and a rotation shaft of a driving means provided in the valve casing, and is rotated by a predetermined rotation angle to match a first communication hole. A rotating disk having
The four first communication holes are composed of two holes for increasing the gas flow rate and two holes for decreasing the gas flow rate, and a pair of large and small holes are provided at each gas outlet. Arranged on the same circumference to match and face each other,
The rotary disk is rotated via the driving means, and the second communication hole is made to coincide with either one of the first communication holes for each gas outflow portion, and either the large or small gas flow rate for each gas outflow portion. A gas valve characterized in that it can be adjusted to.
前記駆動手段により前記回転ディスクを正逆転可能としたことを特徴とする請求項1記載のガスバルブ。The gas valve according to claim 1, wherein the rotary disk can be rotated forward and backward by the driving means.
JP2002011278A 2002-01-21 2002-01-21 Gas valve Expired - Fee Related JP3748061B2 (en)

Priority Applications (4)

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JP2002011278A JP3748061B2 (en) 2002-01-21 2002-01-21 Gas valve
KR1020030002735A KR100661056B1 (en) 2002-01-21 2003-01-15 Gas valve
TW092101149A TW571052B (en) 2002-01-21 2003-01-20 Gas valve
CNB031029167A CN1260513C (en) 2002-01-21 2003-01-21 Gas valve

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JP2009002632A (en) * 2007-06-25 2009-01-08 Harman Pro:Kk Heating cooker
JP5334679B2 (en) * 2009-05-15 2013-11-06 リンナイ株式会社 Thermal power control device
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