JP2002333108A - Burner and cooking appliance using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burner capable of ensuring an excellent state of combustion and a high thermal efficiency. SOLUTION: A burner port 10 opening radially in the circumferential direction is provided obliquely upward on the lower side of the outer peripheral part of a molded body 6 of the burner port, and a straightening part 14 directing premixed gas upward is provided in the vicinity of a base part on the inner side of the burner port 10. By this constitution, the premixed gas is subjected to a diffusing and straightening action by the straightening part 14 so that it is directed upward, before it reaches the burner port 10, and the angle of an upward jet of a flame can be ensured in a large degree even when an upward slant angle of the burner port 10 is small. Thus, heat radiation toward the circumference is reduced and the high thermal efficiency can be ensured.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明はガス等を燃料とする
バーナ及びそれを加熱源とするコンロに関するものであ
る。The present invention relates to a burner using gas or the like as a fuel and a stove using the burner as a heating source.

【０００２】[0002]

【従来の技術】従来この種のバーナは、特開平９−２９
２１０８号公報に記載されているようなものがあった。
これは図５に示すように、混合管６１の上部に炎口成型
体６２を嵌合して構成してある。そして上記炎口成型体
６２は予混合ガスの拡散部６３の外周縁に一定の上方傾
斜角で主炎口６４と小炎口６５を交互に配設し、更に五
徳の支え爪６６に相当する部分に火移り用の極小炎口６
７を設けて構成してあり、五徳の支え爪６６近傍で形成
される火炎を極小化して主炎が五徳の支え爪６６に干渉
することを防止し、燃焼の悪化、熱効率の低下を抑える
というものであった。2. Description of the Related Art Conventionally, this kind of burner is disclosed in Japanese Patent Laid-Open No. 9-29.
There was one as described in Japanese Patent Publication No. 2108.
As shown in FIG. 5, this is configured by fitting a flame port molding 62 to the upper part of a mixing tube 61. The flame port molded body 62 has a main flame port 64 and a small flame port 65 alternately arranged at a constant upward inclination angle on the outer peripheral edge of the diffusion portion 63 of the premixed gas, and further corresponds to a supporting claw 66 of Gotoku. Small flame outlet 6 for fire transfer to part
7, the flame formed near the virtue support claws 66 is minimized to prevent the main flame from interfering with the virtue support claws 66, and to suppress deterioration of combustion and decrease in thermal efficiency. Was something.

【０００３】また、他の従来のバーナは、特開平９−２
９６９３２号公報に記載されているうなものもあった。
これは図６に示すように、中央に空気開口部７１を設け
た環状の炎口成型体７２の外周縁に、一定の上方傾斜角
で放射状に主炎口７３を配設し、かつ炎口成型体７２の
主炎口７３と空気開口部７１との間に予混合ガスの拡散
部７４を設けるとともに、主炎口７３の上方に隙間を介
して煮汁遮蔽体７５を設けて構成してあり、バーナが弱
火状態において、弱火炎が煮汁遮蔽体７５に覆われるよ
うに煮汁遮蔽体７５の大きさを構成すると共に、煮汁遮
蔽体７５と炎口成型体７２の間に空気開口部から燃焼用
空気を通過させて、強火炎における熱効率の低下を抑え
るというものであった。Another conventional burner is disclosed in Japanese Unexamined Patent Publication No.
There was also a horn described in US Pat. No. 96932.
As shown in FIG. 6, a main flame port 73 is radially arranged at a constant upward inclination angle on the outer peripheral edge of an annular flame port molded body 72 having an air opening 71 in the center. The premixed gas diffusion portion 74 is provided between the main flame port 73 and the air opening 71 of the molded body 72, and a boiling shield 75 is provided above the main flame port 73 via a gap. When the burner is in a low heat state, the size of the broth shield 75 is configured so that the weak flame is covered by the broth shield 75, and the burner is used for burning from the air opening between the broth shield 75 and the flame port molding 72. Air was allowed to pass through to suppress a decrease in thermal efficiency in a strong flame.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら従来の前
記したバーナでは、混合管６１から炎口成型体６２内に
流入した予混合ガスは、一旦拡散部６３で均一に拡散し
たのち主炎口６４から噴出して火炎を形成するが、主炎
口６４が一定の上方傾斜角で設けられているのに対し、
拡散部６３は略環状の凹部としているため、形成される
火炎の噴出角度は主炎口６４の上方傾斜角と予混合ガス
の噴出速度だけでなく、予混合ガスが拡散部６３から主
炎口６４に至る際の流出方向にも依存する。したがっ
て、強燃焼量の場合は、拡散部６３を通過して主炎口内
に流出する際に下向きないし横向きの速度ベクトルが発
生するため、火炎の噴出角度が浅くなって一定以上の熱
効率の向上が望めず、周囲への熱放散がある程度多いと
いう課題があった。However, in the above-described conventional burner, the premixed gas flowing into the flame port molding 62 from the mixing pipe 61 is once diffused uniformly by the diffusion section 63 and then diffused from the main flame port 64. It gushes and forms a flame, whereas the main flame port 64 is provided at a constant upward inclination angle,
Since the diffusion portion 63 is formed as a substantially annular concave portion, the emission angle of the formed flame is not only the upward inclination angle of the main flame port 64 and the ejection speed of the premixed gas, but also the premixed gas flows from the diffusion portion 63 into the main flame port. It also depends on the outflow direction when reaching 64. Therefore, in the case of a strong combustion amount, a downward or sideward velocity vector is generated when flowing through the diffusion portion 63 and into the main flame opening, so that the flame ejection angle becomes shallow and the thermal efficiency is improved more than a certain level. There was a problem that it could not be hoped for and the heat dissipation to the surroundings was large to some extent.

【０００５】また、後者のバーナでは、煮汁遮蔽体７５
と炎口成型体７２の間から燃焼用空気を流入させて、主
炎口７３で形成される火炎の燃焼を促進し火炎長を短く
することにより、鍋等との距離をある程度接近させるこ
とが可能となり、それによって一定の熱効率の向上はあ
るが、拡散部７４の構成は前記のバーナと同様に、略環
状の凹部構成であるため、強燃焼量においては火炎の噴
出角度が浅くなり、一定以上の熱効率の向上が望めず、
周囲への熱放散がある程度多いという課題があった。[0005] In the latter burner, a broth shield 75 is used.
By injecting combustion air from between the flame outlet molded body 72 and the main body, the combustion of the flame formed by the main flame outlet 73 is promoted and the flame length is shortened. Although there is a certain improvement in thermal efficiency due to this, the configuration of the diffusion portion 74 is a substantially annular concave portion configuration like the above-described burner, so that the flame ejection angle becomes shallow at a strong combustion amount, and The improvement of the above thermal efficiency cannot be expected,
There was a problem that heat dissipation to the surroundings was large to some extent.

【０００６】本発明は上記従来の課題を解決するもの
で、炎口溝の上方傾斜角が浅くても火炎の上方噴出角度
を大きくして周囲への熱放散を抑え熱効率を向上させる
ことを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has an object to improve the thermal efficiency by suppressing the heat dissipation to the surroundings by increasing the upper ejection angle of the flame even if the upper inclination angle of the flame opening groove is shallow. And

【０００７】[0007]

【課題を解決するための手段】上記の目的を達成するた
めに、本発明のバーナは、炎口成型体の中央に空気通路
を設けるとともに外周部に周方向へ放射状に開口する炎
口を斜め上向きに配設し、かつ炎口の内側方の基底部近
傍に予混合ガスを上方に向ける整流部を設けた構成とし
た。In order to achieve the above object, a burner according to the present invention is provided with an air passage at the center of a flame port molded body and obliquely opening a flame port radially open in a circumferential direction on an outer peripheral portion. The rectifying unit is disposed upward and provided with a rectifying unit for directing the premixed gas upward in the vicinity of the base inside the flame outlet.

【０００８】上記の発明によれば、予混合ガスは炎口に
至る前段階において、整流部によって既に上方に向くよ
うに拡散整流作用を受け、炎口の上方傾斜角が浅くても
火炎の上方噴出角度を大きく確保できる。さらに、炎口
形状が溝状の構成である場合、炎口の成型は熱間鍛造が
主流であり、その加工性を確保するため炎口の上方傾斜
角をある程度浅くしても、火炎を上方に向けることがで
きる。したがって、加工が容易でかつ周囲への熱放散を
抑えて高い熱効率を実現できる。According to the above invention, the premixed gas is subjected to the diffusion rectification action by the rectifying section so as to be directed upward at the stage before reaching the flame outlet, and even if the upward inclination angle of the flame outlet is shallow, the premixed gas remains above the flame. A large ejection angle can be secured. Furthermore, when the flame shape is a groove-like configuration, hot forging is the mainstream for the molding of the flame, and even if the upper angle of the flame is slightly reduced to secure the workability, the flame is raised upward. Can be turned on. Therefore, processing is easy, and heat dissipation to the surroundings can be suppressed to achieve high thermal efficiency.

【０００９】[0009]

【発明の実施の形態】請求項１記載の発明は、バーナ本
体上に炎口成型体を載置し、この炎口成形体は中央に空
気通路を設けるとともに外周部に周方向へ放射状に開口
する炎口を斜め上向きに配設し、かつ炎口の内側方の基
底部近傍に予混合ガスを上方に向ける整流部を設けた構
成としてあり、予混合ガスは、整流部によって炎口に至
る以前に上方に向くように拡散整流作用を受けるため、
火炎の上方噴出角度を大きく保ち、周囲への熱放散を抑
えて高い熱効率を確保できる。According to the first aspect of the present invention, a flame port molded body is mounted on a burner body, and the flame port molded body is provided with an air passage in the center and radially opened in an outer peripheral portion in a circumferential direction. The flaming port is arranged obliquely upward, and a rectifying section is provided near the inner base of the flaming port to direct the premixed gas upward, and the premixed gas reaches the flame port by the rectifying section. Because it is affected by diffusion rectification so that it faces upwards before,
The upper jet angle of the flame is kept large, and the heat dissipation to the surroundings is suppressed, ensuring high thermal efficiency.

【００１０】請求項２に記載の発明は、整流部を炎口成
型体の空気通路の外周部から炎口の内側方の基底部近傍
に至り、炎口の上方傾斜角よりも大きな上方傾斜角で構
成してあり、炎口の上方傾斜角が浅くても火炎の上向き
の傾向を保持することができ、高い熱効率を確保でき
る。According to a second aspect of the present invention, the rectifying portion extends from the outer peripheral portion of the air passage of the flame port molded body to the vicinity of the base inside the flame port, and has an upward inclination angle larger than the upward inclination angle of the flame port. , The upward tendency of the flame can be maintained even if the upward inclination angle of the flame opening is shallow, and high thermal efficiency can be secured.

【００１１】請求項３に記載の発明は、炎口成型体の外
周部を外方に下方傾斜させた外周傾斜面とし、この外周
傾斜面に炎口を開口させた構成としてあり、傾斜面に沿
って火炎が上向きになりやすいため、高い熱効率を確保
することができる。According to a third aspect of the present invention, there is provided a structure in which the outer peripheral portion of the flame port molded body is formed as an outer peripheral inclined surface which is inclined downward outward, and the outer peripheral inclined surface is opened with a flame port. Since the flame tends to be directed upward along, high thermal efficiency can be secured.

【００１２】請求項４に記載の発明は、炎口成型体の上
面に空気通路の中心に向かって下降傾斜する内周傾斜面
を構成したことにより、空気通路から流入する空気は内
周傾斜面に沿って拡散上昇し、上昇気流の傾向を持ちな
がら火炎中に燃焼空気として拡散し、燃焼を促進して火
炎長を短縮し、同時に火炎の上方傾斜をも促進して、高
い熱効率を確保することができる。According to a fourth aspect of the present invention, since the inner peripheral inclined surface which is inclined downward toward the center of the air passage is formed on the upper surface of the flame port molded body, the air flowing from the air passage is formed with the inner peripheral inclined surface. Spreads along the air and diffuses in the flame as a combustion air while having a tendency of ascending airflow, promotes combustion, shortens the flame length, and at the same time promotes the upward inclination of the flame, ensuring high thermal efficiency be able to.

【００１３】請求項５に記載の発明は、炎口成型体の上
方に空隙を介して煮汁遮蔽体を設けた構成としてあり、
空気通路から流入した空気は煮汁遮蔽体に衝突すること
によって均一に火炎中に拡散し、燃焼を促進して火炎長
を短縮して高い熱効率を確保すると同時に、炎口への煮
汁の落下を防止することができる。According to a fifth aspect of the present invention, there is provided a structure in which a boiled shield is provided above the flame port molded body via a gap.
The air that has flowed in from the air passage collides with the broth shield and diffuses evenly into the flame, promoting combustion and shortening the flame length to ensure high thermal efficiency and at the same time prevent the broth from falling into the flame outlet can do.

【００１４】請求項６に記載の発明は、炎口を周方向に
開口する複数の炎口溝としてあり、炎口を熱間鍛造方法
等で容易に加工できる。According to a sixth aspect of the present invention, the flame port is formed as a plurality of flame groove which opens in the circumferential direction, and the flame port can be easily processed by a hot forging method or the like.

【００１５】請求項７に記載の発明は、天板の開口部の
周囲に設けた段押し部と、段押し部を遮蔽しかつ内周を
下方傾斜させた枠体に載置部を設けて構成した五徳と、
前記開口部に設けた請求項１ないし６のいずれか１項に
記載のバーナと、同開口部に設けた受皿とを備え、かつ
前記段押し部、あるいは汁受皿の側面部に空気口を設け
た構成としてあり、炎口成型体の空気通路から流入する
空気は、煮汁遮蔽体と炎口成型体との間の空隙を通過し
て火炎中に効果的に拡散し、同時に空気口から流入する
空気は、五徳の枠体の傾斜によって整流され、天板など
を冷却しながら炎口部へ到達するので、燃焼が促進され
て短炎化し、かつ上方に向いた火炎を実現できる。した
がって、鍋等の調理物をバーナに接近させてもＣＯの立
ち上がりを抑制でき、五徳と天板上面との段差を低くし
て全体として段差の少ない構成を確保し、同時に高い熱
効率を実現して省エネルギー性を確保することができ
る。According to a seventh aspect of the present invention, a stepped portion provided around the opening of the top plate and a mounting portion are provided on a frame which shields the stepped portion and inclines the inner periphery downward. With the five virtues
The burner according to any one of claims 1 to 6, which is provided in the opening, and a saucer provided in the opening, and an air port is provided in a side surface of the stepped portion or the juice receiving tray. The air flowing from the air passage of the flame port molding is effectively diffused into the flame through the gap between the broth shield and the flame port molding, and simultaneously flows in from the air port. The air is rectified by the inclination of the frame of the virtues and reaches the flame opening while cooling the top plate and the like, so that combustion is promoted to shorten the flame, and a flame directed upward can be realized. Therefore, even if food such as a pot is brought close to the burner, the rise of CO can be suppressed, and the step between Gotoku and the top plate is lowered to ensure a configuration with few steps overall, and at the same time, high thermal efficiency is realized. Energy saving can be ensured.

【００１６】[0016]

【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００１７】（実施例１）本発明の実施例１におけるバ
ーナを図１、図２を参照して説明する。図１は、本実施
例のバーナの断面図、図２は同バーナの外観を示す側面
図である。(Embodiment 1) A burner according to Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of the burner of the present embodiment, and FIG. 2 is a side view showing the appearance of the burner.

【００１８】図において、１はステンレスなどの耐熱性
金属からなるバーナ本体で、燃料予混合ガスの混合管２
と、上下に貫通する内周壁３と外周壁４で形成した略環
状の拡散室５とを有する。In FIG. 1, reference numeral 1 denotes a burner main body made of a heat-resistant metal such as stainless steel.
And a substantially annular diffusion chamber 5 formed by an inner peripheral wall 3 and an outer peripheral wall 4 penetrating vertically.

【００１９】６は黄銅の鍛造加工、アルミニウム地金の
鋳造加工、またはセラミックス成型などによって略円錐
台形状に成型した炎口成型体で、中央には内周壁３に嵌
合する開口筒７があって上下に貫通する空気通路８を構
成している。上記炎口成型体６の上外周部の下面側は、
拡散室５の外周壁４の上部に位置するフランジ部分にほ
ぼ密接し、その外周面部は上部から下部にかけて外周方
向に下降傾斜する外周傾斜面９としている。Reference numeral 6 denotes a flame port molded body formed into a substantially truncated conical shape by brass forging, aluminum ingot casting, ceramics molding, or the like. An opening cylinder 7 fitted to the inner peripheral wall 3 is provided at the center. To form an air passage 8 penetrating vertically. The lower surface side of the upper and outer peripheral portions of the flame port molding 6 is
The diffusion chamber 5 is substantially in close contact with a flange portion located above the outer peripheral wall 4, and the outer peripheral surface portion is an outer peripheral inclined surface 9 which is inclined downward in the outer peripheral direction from the upper part to the lower part.

【００２０】また、炎口成型体６の外周傾斜面９には、
中心から放射状かつ一定の上方傾斜角度αで、斜め上向
きに多数の溝状の炎口１０を設け、炎口１０が外周傾斜
面９へ開口する部分を炎口部１１としている。また炎口
部１１には、炎口１０よりも開口面積の小さい補助炎口
１２で構成された炎口配設密度の低い領域１３が隔設し
てある。Further, the outer peripheral inclined surface 9 of the flame port molding 6 has
A large number of groove-shaped flame ports 10 are provided diagonally upward at a constant upward inclination angle α radially from the center, and a portion where the flame port 10 opens to the outer peripheral inclined surface 9 is a flame port portion 11. Further, a region 13 having a low flame port arrangement density, which is constituted by an auxiliary flame port 12 having an opening area smaller than that of the flame port 10, is separated from the flame port portion 11.

【００２１】さらに、炎口成型体６には、空気通路８の
外周部でバーナ本体２の内周壁３との嵌合部分から炎口
１０の内側方の基底部近傍に至り、炎口１０の上方傾斜
角度αよりも大きな上方傾斜角度βをもった逆円錐台形
状の整流部１４を設けている。Further, the flame port molded body 6 extends from the fitting portion of the air passage 8 to the inner peripheral wall 3 of the burner body 2 to the vicinity of the base inside the flame port 10, An inverted truncated cone-shaped rectifying portion 14 having an upward inclination angle β larger than the upward inclination angle α is provided.

【００２２】一方、炎口成型体６の上面には、炎口成型
体６の炎口部１１の最大外径と同等か１〜２mm程度大き
い外径を有する煮汁遮蔽体１５が、空気通路８と連通す
る空隙１６を介して一体に設けてある。この煮汁遮蔽体
１５は、炎口成型体６と同一部材で構成し、空気通路８
の内周上部から立ち上がる複数の支柱１７によって、炎
口成型体６と連結している。On the other hand, on the upper surface of the flame port molding 6, a boiling shield 15 having an outer diameter equal to or larger than the maximum outer diameter of the flame port portion 11 of the flame port molding 6 by about 1 to 2 mm is provided. Are provided integrally with each other through a gap 16 that communicates with the air. This broth shield 15 is made of the same member as the flame port molded body 6,
Are connected to the flame port molded body 6 by a plurality of columns 17 rising from the upper inner peripheral portion of the body.

【００２３】このように、バーナ本体１上に、煮汁遮蔽
体１５と一体となった炎口成型体６を嵌合することによ
って、バーナ１８を構成している。As described above, the burner 18 is formed by fitting the flame port molded body 6 integrated with the boiling juice shield 15 onto the burner main body 1.

【００２４】次に動作、作用について説明すると、予混
合ガスは、混合管２内に噴出する燃料ガスと、これと同
時に吸引される予混合空気（一次空気）とが混合するこ
とによって形成され、そののち拡散室５内で均一に拡散
し、炎口１０および補助炎口１２の開口面積に応じて分
散するが、整流部１４の上方傾斜角度βに沿って上向き
の拡散整流作用を受けるため、炎口１０から噴出する際
には炎口１０の上方傾斜角度αよりも上向きの流出傾向
を持って噴出し、適当な点火手段（図示せず）によって
着火され、炎口部１１で火炎１９を形成する。この時火
炎１９は、予混合ガスとして炎口１０から噴出する際の
上向きの流出傾向と、火炎１９としての上昇気流化する
ことによって、ほぼ直上向きの火炎１９を形成する。Next, the operation and action will be described. The premixed gas is formed by mixing the fuel gas ejected into the mixing pipe 2 with the premixed air (primary air) sucked at the same time. After that, it is uniformly diffused in the diffusion chamber 5 and dispersed according to the opening area of the flame port 10 and the auxiliary flame port 12, but is subjected to an upward diffusion rectification action along the upward inclination angle β of the rectification portion 14, When the gas is blown out from the flame port 10, the gas is blown out with an upward tendency toward the upward inclination angle α of the flame port 10 and ignited by a suitable ignition means (not shown). Form. At this time, the flame 19 forms an almost directly upward flame 19 due to an upward outflow tendency when the flame 19 is ejected from the flame port 10 as a premixed gas and an upward airflow as the flame 19.

【００２５】一方、空気通路８から上昇気流として流入
する第一の二次空気流２０は、煮汁遮蔽体１５と炎口成
型体６の上面との間の空隙１６を通過して、炎口部１１
の直上に至って火炎１９中に効果的に拡散する。同時
に、第二の二次空気流２１が炎口成型体６の外周壁４の
周囲から火炎１９中に拡散する。したがって、火炎１９
は第一の二次空気流２０と第二の二次空気流２１によっ
て挟まれることにより、燃焼が促進され短炎化される。On the other hand, the first secondary airflow 20 flowing from the air passage 8 as an ascending airflow passes through the gap 16 between the broth shield 15 and the upper surface of the flame port molding 6, and the flame port portion 11
And diffuses into the flame 19 effectively. At the same time, the second secondary air flow 21 diffuses into the flame 19 from around the outer peripheral wall 4 of the flame port molding 6. Therefore, the flame 19
By being sandwiched between the first secondary air flow 20 and the second secondary air flow 21, the combustion is promoted and the flame is shortened.

【００２６】さらに、炎口部１１には、数箇所の炎口配
設密度の低い領域１３を設けているので、この領域での
火炎は主に火移りを確保するための小規模火炎となり、
隣接する火炎１９同士の干渉を抑制し、一層短炎化した
火炎１９を実現できる。Further, since several regions 13 having a low flame hole arrangement density are provided in the flame opening portion 11, the flames in this region are mainly small-scale flames for securing a fire transfer.
Interference between the adjacent flames 19 is suppressed, and the flame 19 with a shorter flame can be realized.

【００２７】したがって、火炎１９はほぼ直上向きかつ
短炎化した火炎となるため、鍋等の調理物をバーナに接
近させてもＣＯの立ち上がりを抑制でき、同時に周囲へ
の熱放散を抑制し、結果として高い熱効率を確保するこ
とができるだけでなく、煮零れが生じた場合でも、これ
は煮汁遮蔽体１５の上部に落下してその外周部から下に
落ちるため、空気通路８内に侵入したり炎口１０を詰ま
らせることがない。Therefore, since the flame 19 is a flame which is directed almost upward and has a short flame, the rising of CO can be suppressed even when the food such as a pot is brought close to the burner, and at the same time, the heat dissipation to the surroundings can be suppressed. As a result, not only high heat efficiency can be ensured, but also in the case where boiling occurs, this falls into the upper portion of the boiling juice shield 15 and falls down from the outer periphery thereof, so that it may enter the air passage 8 or There is no clogging of the flame outlet 10.

【００２８】また、整流部１４の上方傾斜角度βを炎口
１０の上方傾斜角度αよりも大きくすることによって、
予混合ガスの噴出角度を上向きにすることができるた
め、炎口傾斜角度αを浅くすることができ、炎口１０の
溝を構成する際の加工性を容易にすることができる。Further, by making the upward inclination angle β of the flow straightening section 14 larger than the upward inclination angle α of the flame outlet 10,
Since the injection angle of the premixed gas can be made upward, the flame opening angle α can be made shallow, and the workability when forming the groove of the flame opening 10 can be facilitated.

【００２９】また、炎口成型体６と煮汁遮蔽体１５を同
一部材にて一体構成したため、使用者がおこしがちな煮
汁遮蔽体１５の装着忘れを防止し、電気的腐食を抑えて
長寿命化が図れる。Further, since the flame opening molded body 6 and the broth shield 15 are integrally formed by the same member, it is possible to prevent a user from forgetting to attach the broth shield 15 which is apt to occur, suppress electric corrosion, and extend the life. Can be achieved.

【００３０】さらに、炎口成型体６と煮汁遮蔽体１５を
同一部材にて一体に構成したことは、部材の一定の成型
を経たのち、煮汁遮蔽体１５と炎口成型体６の間の空隙
１６を形成することを容易に可能とし、全体としてバー
ナ１８の製造コストを低下させることができる。Furthermore, the fact that the flame opening molded body 6 and the broth shielding body 15 are integrally formed by the same member means that after a certain molding of the members, the gap between the boiling juice shielding body 15 and the flame opening molded body 6 is formed. 16 can be easily formed, and the manufacturing cost of the burner 18 can be reduced as a whole.

【００３１】（実施例２）本発明の実施例２におけるバ
ーナを図３を参照して説明する。図３は、本実施例のバ
ーナの断面図である。(Embodiment 2) A burner according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 3 is a sectional view of the burner of the present embodiment.

【００３２】本実施例のバーナ３０が実施例１と異なる
のは、炎口成型体３１の上面に空気通路３２の中心に向
かって下降傾斜させた内周傾斜面３３を構成するととも
に、炎口成型体３１とは別体で構成した煮汁遮蔽体３４
を、炎口成型体３１の支柱３５に一体に嵌合させた点で
ある。The burner 30 of this embodiment is different from that of the first embodiment in that an inner peripheral inclined surface 33 inclined downward toward the center of the air passage 32 is formed on the upper surface of the flame port molding 31 and the flame port is formed. Boiled shielding body 34 formed separately from molded body 31
Is fitted to the support 35 of the flame port molded body 31 integrally.

【００３３】なお、実施例１と同一符号のものは同一構
造を有し、説明は省略する。The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted.

【００３４】次に動作、作用について説明すると、空気
通路３２から流入する第一の二次空気流３６は、内周傾
斜面３３に沿って拡散上昇し、空隙１６を通過して上昇
気流の傾向を持ちながら火炎３７中に燃焼空気として拡
散し、燃焼を促進して火炎長を短縮し、同時に火炎３７
の上方傾斜をも促進して、ほぼ直上向きの火炎３７を形
成するため、周囲への熱放散を抑制して高い熱効率を確
保することができる。Next, the operation and action will be described. The first secondary air flow 36 flowing from the air passage 32 diffuses and rises along the inner peripheral inclined surface 33, passes through the gap 16, and tends to rise. While being held, the air diffuses into the flame 37 as combustion air, and promotes combustion to shorten the flame length.
Is also promoted to form a flame 37 that is substantially upward, so that heat dissipation to the surroundings can be suppressed and high thermal efficiency can be secured.

【００３５】（実施例３）本発明のコンロの実施例を図
４を参照して説明する。図４は実施例のコンロの断面図
である。(Embodiment 3) An embodiment of a stove according to the present invention will be described with reference to FIG. FIG. 4 is a sectional view of the stove according to the embodiment.

【００３６】図において、コンロ本体４１は、カウンタ
ー４２の開口内に落とし込まれ、かつカウンター４２の
開口の周縁部に載置されている。天板４３はコンロ本体
４１を蔽うようにコンロ本体４１上に載置され、天板４
３の周縁部はカウンター４２に接触している。天板４３
には略円形の段押し部４４を設けたフランジ４５状の開
口部４６があり、フランジ４５上には中央にバーナ開口
部４７を有し、かつ周囲の側面部に多数の長穴状の空気
口４８を穿設した汁受皿４９が載置され、バーナ開口部
４７には、実施例２におけるバーナ３０を臨ませてあ
る。なお、空気口４８は天板４３の段押し部４４の側面
部に設けてもよい。In the figure, the stove body 41 is dropped into the opening of the counter 42 and is mounted on the periphery of the opening of the counter 42. The top plate 43 is placed on the stove body 41 so as to cover the stove body 41, and the top plate 4
The periphery of 3 is in contact with the counter 42. Top plate 43
Has an opening 46 in the form of a flange 45 provided with a substantially circular stepped portion 44, a burner opening 47 in the center on the flange 45, and a large number of long holes in the peripheral side surface. A juice tray 49 having a mouth 48 is placed thereon, and the burner 30 according to the second embodiment faces the burner opening 47. The air port 48 may be provided on the side surface of the stepped portion 44 of the top plate 43.

【００３７】一方五徳５０は、内周を下方に傾斜させた
ドーナツ状の枠体５１に複数の載置部５２を配置した構
成としてあり、枠体５１は段押し部４４および、汁受皿
４９の空気口４８を上から遮蔽するように載置してあ
る。On the other hand, the gotoku 50 has a configuration in which a plurality of mounting portions 52 are arranged on a donut-shaped frame 51 whose inner periphery is inclined downward, and the frame 51 is provided with a stepped portion 44 and a soup tray 49. The air port 48 is placed so as to shield it from above.

【００３８】なお、実施例１、２と同一符号のものは同
一構造を有し、説明は省略する。The components having the same reference numerals as those of the first and second embodiments have the same structure, and the description is omitted.

【００３９】次に動作、作用について説明すると、バー
ナ３０に供給された予混合ガスは炎口１０から噴出し、
適当な点火手段（図示せず）によって着火され、炎口部
１１で上向きの火炎５３を形成する。この時、空気通路
３２から上昇気流として流入する第一の二次空気流３６
が煮汁遮蔽体３４と炎口成型体３１の間の空隙１６を通
過して、上昇気流の傾向を持ちながら炎口部１１の直上
に至って火炎５３中に効果的に拡散する。同時に、空気
口４８を通じて流入する空気は、天板４３の下面部を冷
却しながら、五徳５０の枠体５１の内周の下降傾斜によ
って方向を整流され、汁受皿４９の底面をなめるように
流れて汁受皿４９の温度上昇を抑えながら、炎口部１１
の周囲から第二の二次空気流５４としてして火炎５３中
に拡散する。したがって、火炎５３は第一の二次空気流
３６と第二の二次空気流５４によって挟まれ、燃焼が促
進され短炎化した直上向きの火炎として形成される。Next, the operation and operation will be described. The premixed gas supplied to the burner 30 is blown out from the flame port 10 and
It is ignited by a suitable ignition means (not shown) and forms an upward flame 53 at the flame opening 11. At this time, the first secondary air flow 36 flowing from the air passage 32 as an ascending air flow
Passes through the gap 16 between the broth shield 34 and the flame port molded body 31, and reaches the upper portion of the flame port 11 while diffusing into the flame 53 while having a tendency of upward air flow. At the same time, the air flowing in through the air port 48 is rectified by the downward inclination of the inner periphery of the frame 51 of the goto 50 while cooling the lower surface of the top plate 43 and flows so as to lick the bottom surface of the juice tray 49. While suppressing the temperature rise of the soup pan 49,
And diffuses into the flame 53 as a second secondary air flow 54 from the surroundings. Accordingly, the flame 53 is sandwiched between the first secondary air flow 36 and the second secondary air flow 54, and is formed as a flame which is promoted and has a short flame and is directed upward.

【００４０】したがって、高い熱効率を実現して省エネ
ルギー性をも確保し、煮汁の炎口１１内への侵入防止と
安定した燃焼空気の供給が行え、全体として段差の少な
い構成を確保したコンロを提供することができる。Therefore, a stove that achieves high thermal efficiency and also secures energy saving, prevents the broth from entering into the flame opening 11 and can stably supply combustion air, and as a whole, has a stove with a small difference in level. can do.

【００４１】[0041]

【発明の効果】以上のように、本発明によれば、予混合
ガスは炎口に至る前段階において、整流部によって既に
上方に向くように拡散整流作用を受け、炎口の上方傾斜
角が浅くても火炎の上方噴出角度を大きく確保できる。
さらに、炎口形状が溝状の構成である場合、その加工性
を確保するため炎口の上方傾斜角をある程度浅くして
も、火炎を上方に向けることができる。したがって、加
工が容易でかつ周囲への熱放散を抑えて高い熱効率を確
保し、同時に煮零れによる炎口の目詰まりを防止するこ
とが可能である。As described above, according to the present invention, before the premixed gas reaches the flame outlet, the pre-mixed gas is subjected to the diffusion rectification action by the rectifying portion so as to already face upward, and the upward inclination angle of the flame outlet is increased. Even if it is shallow, a large upward jet angle of the flame can be secured.
Further, in the case where the shape of the flame port is a groove-like configuration, the flame can be directed upward even if the upper angle of inclination of the flame port is made somewhat shallow in order to ensure the workability. Therefore, processing is easy, heat dissipation to the surroundings is suppressed, high thermal efficiency is secured, and clogging of the flame opening due to boiling can be prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施例１のバーナの断面図FIG. 1 is a sectional view of a burner according to a first embodiment of the present invention.

【図２】同バーナの外観を示す側面図FIG. 2 is a side view showing an appearance of the burner.

【図３】本発明の実施例２のバーナの断面図FIG. 3 is a sectional view of a burner according to a second embodiment of the present invention.

【図４】本発明のコンロの実施例を示す断面図FIG. 4 is a sectional view showing an embodiment of the stove according to the present invention.

【図５】（ａ）従来のバーナの断面図 （ｂ）同バーナの要部拡大図5A is a sectional view of a conventional burner, and FIG. 5B is an enlarged view of a main part of the burner.

【図６】従来の他のバーナの断面図FIG. 6 is a sectional view of another conventional burner.

【符号の説明】[Explanation of symbols]

１ バーナ本体 ６、３１ 炎口成型体 ８、３２ 空気通路 ９ 外周傾斜面 １０ 炎口 １１ 炎口部 １４ 整流部 １５、３４ 煮汁遮蔽体 １６ 空隙 １８、３０ バーナ ３３ 内周傾斜面 ４３ 天板 ４４ 段押し部 ４６ 開口部 ４８ 空気口 ４９ 汁受皿 ５０ 五徳 ５１ 枠体 ５２ 載置部 DESCRIPTION OF SYMBOLS 1 Burner main body 6, 31 Flame port molded body 8, 32 Air passage 9 Outer peripheral inclined surface 10 Flame port 11 Flame port 14 Rectifying part 15, 34 Boiled shield 16 Void 18, 30 Burner 33 Inner peripheral inclined surface 43 Top plate 44 Step pushing part 46 Opening part 48 Air port 49 Juice tray 50 Gotoku 51 Frame 52 Placement part

───────────────────────────────────────────────────── フロントページの続き (72)発明者 碓井 研造 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3K017 AA01 AA10 AB04 AB10 AC02 AD11  ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kenzo Usui 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3K017 AA01 AA10 AB04 AB10 AC02 AD11

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 バーナ本体上に炎口成型体を載置し、こ
の炎口成型体は中央に空気通路を設けるとともに外周部
に周方向へ放射状に開口する炎口を斜め上向きに配設
し、かつ炎口の内側方の基底部近傍に予混合ガスを上方
に向ける整流部を設けたバーナ。1. A flame port molded body is mounted on a burner main body. The flame port molded body is provided with an air passage in the center, and a flame port radially opened in a circumferential direction on an outer peripheral portion is disposed obliquely upward. A burner provided with a rectifying section for directing the premixed gas upward in the vicinity of the base inside the flame outlet. 【請求項２】 整流部は、炎口成型体の空気通路の外周
部から炎口の内側方の基底部近傍に至り、炎口の上方傾
斜角度よりも大きな上方傾斜角度を構成した請求項１に
記載のバーナ。2. The rectifying section extends from the outer peripheral portion of the air passage of the flame port molded body to the vicinity of the base inside the flame port, and has an upward inclination angle larger than the upward inclination angle of the flame port. The burner described in. 【請求項３】 炎口成型体は、外周部を外方に下方傾斜
させた外周傾斜面とし、この外周傾斜面に炎口を開口さ
せた請求項１または２に記載のバーナ。3. The burner according to claim 1, wherein the flame port molded body has an outer peripheral portion having an outer peripheral inclined surface inclined downward and outward, and a flame port is opened in the outer peripheral inclined surface. 【請求項４】 炎口成型体の上面は、空気通路の中心に
向かって下降傾斜する内周傾斜面とした請求項１ないし
３のいずれか１項に記載のバーナ。4. The burner according to claim 1, wherein the upper surface of the flame port molding is an inner peripheral inclined surface which is inclined downward toward the center of the air passage. 【請求項５】 炎口成型体の上方に空隙を介して煮汁遮
蔽体を設けた請求項１ないし４のいずれか１項に記載の
バーナ。5. The burner according to any one of claims 1 to 4, wherein a broth shield is provided above the flame port molding via a gap. 【請求項６】 炎口は、周方向に開口する複数の炎口溝
とした請求項１ないし５のいずれか１項に記載のバー
ナ。6. The burner according to claim 1, wherein the flame port is a plurality of flame port grooves that open in a circumferential direction. 【請求項７】 天板の開口部の周囲に設けた段押し部
と、段押し部を遮蔽しかつ内周を下方傾斜させた枠体に
載置部を設けて構成した五徳と、前記開口部に設けた請
求項１ないし６のいずれか１項に記載のバーナと、同開
口部に設けた受皿とを備え、かつ前記段押し部あるいは
汁受皿の側面部に空気口を設けたコンロ。7. A stepped portion provided around an opening of a top plate, a mounting portion provided by providing a mounting portion on a frame body that shields the stepped portion and has an inner periphery inclined downward, and the opening. A stove comprising: the burner according to any one of claims 1 to 6 provided in a portion; a saucer provided in the opening; and an air port provided in a side portion of the stepped portion or the juice saucer.