JP4654836B2 - Gas stove - Google Patents

Description

  The present invention relates to a stove burner mounted on a gas stove, and more particularly to a discharge ignition configuration using an ignition electrode and a combustion detection configuration using a extinguishing safety device.

  Conventionally, as an ignition configuration in this type of gas stove, as shown in FIG. 11, in a gas stove 40 having a stove burner 41, the stove burner 41 has a main flame opening 43 arranged on the circumference on the upper surface of the burner body 42. The burner cap 45 having the ignition flame port 44 disposed on a part of the circumference is placed, and the main flame port 43 and the ignition flame port 44 are combusted with the combustion flame 46 and the ignition flame 47 for cooking and heating. It was. In the stove burner 41, the burner cap 45 and the burner body 42 constitute an ignition space 49 in which an ignition electrode 48 is provided, the burner cap 45 facing the ignition electrode 48 constitutes a discharge target 50, and an ignition operation is performed by the gas stove 40. If it does so, it is set as the structure which discharges between the ignition electrode 48 and the discharge target 50, and is the gas stove 40 comprised by opening the ignition flame port 44 in the ignition space 49 (for example, refer patent document 1).

  As shown in FIG. 12, the stove burner is provided with a slit burner 51 on the upper surface of the burner cap 45, and a burner 41 is installed to cope with improved thermal efficiency and energy saving by blowing the flame upward. A gas stove that has been developed has been developed (see, for example, Patent Document 2).

In the gas stove described in Patent Document 2, although there is no description about the ignition configuration, the extinction detection configuration is fitted with the main flame outlet 43 of the burner cap 45 and the burner body 42 as shown in FIG. In this configuration, a recess 53 is provided in a part of the circumference between the gas seal portion 52 positioned below the cylindrical portion and a combustion confirmation flame port 55 is provided on a side surface 54 of the recess 53. The thermoelectric element portion 56 of the safety device disappears inward of the combustion confirmation flame port 55, and the thermoelectric element portion 56 is heated by the detection flame 57 formed in the combustion confirmation flame port 55 to generate an electromotive force. The safety device is turned off by the presence or absence of electromotive force, so that the combustion of the stove burner 41 can be continued or stopped. Reference numeral 58 denotes a secondary air passage hole 58 provided at the center of the stove burner 41. A temperature sensor 59 is provided at the center, and the upper surface is in contact with the object to be heated.
JP 2000-283415 A JP 2001-201017 A

However, in the configuration of Patent Document 1, the main flame opening 43 is provided on the circumference to form the combustion flame 46, and the ignition flame opening 44 is provided on the same circumference to form the ignition flame 47. In both cases, a flame is formed and burns toward the outer periphery of the stove burner 41. Therefore, when heating an object to be heated such as a pan for cooking on the gas stove 40, the center portion of the object to be heated is not heated because the combustion flame 46 or the like is not present, and the outside of the object to be heated is being heated. High-temperature combustion gas flows while heating the side surface from the outer periphery of the bottom surface of the object to be heated. In this way, the combustion gas flows along the outer periphery of the bottom surface of the object to be heated, so that the handle etc. existing on the side surface of the object to be heated becomes high temperature, making it difficult to touch directly, and inconvenience on the cooking work surface Had. In order to prevent the temperature of the handle or the like from becoming too high, the stove as shown in Patent Document 2 in order to provide a safe gas stove 40 by lowering the temperature of the combustion gas that has flowed to the side of the object to be heated. A burner 41 was provided.

  In the gas stove 40 equipped with the stove burner 41, a combustion flame is formed at the center of the object to be heated and heated, so that the temperature of the combustion gas at the time of reaching the side of the object to be heated is the same as that of the object to be heated. Since the heat exchange between the two is low, the temperature of the handle of the object to be heated is low, so that a safe gas stove can be provided. A combustion confirmation flame port 55 is provided on the side surface 54 facing the secondary air passage hole 58 provided in the center of the burner 41 to heat the thermoelectric element portion 56, and a temperature sensor 59 is provided in the secondary air passage hole 58. Therefore, when combustion starts at the main flame opening 43, the combustion continues in a state in which a swirling flow is generated by flowing obliquely upward along the circumference. Similarly for secondary air Is flowing in the flame 57 presents a circumfluence state. Accordingly, since the swirl flow of air is also generated in the region where the combustion confirmation flame port 55 is formed, the flame 57 of the combustion confirmation flame port 55 is blown away by the swirl flow under the influence of the surrounding swirl flow. As a result, there was a problem that a problem of extinguishing the fire occurred.

  In addition, the combustion flame 46 in the combustion confirmation flame port 55 is turned off by heating the thermoelectric element 56 during combustion of the stove burner 41, and the safety device operates normally, while a temperature sensor 59 is provided in the secondary air passage hole 58. In this case, since the temperature sensor 59 also heats at the same time, the temperature sensor 59 is originally in contact with the object to be heated and senses the temperature of the object to be heated to control the combustion of the burner 41. As a result of being heated from a part other than the object to be heated, the temperature of the object to be heated cannot be accurately detected. Therefore, in the stove equipped with this stove burner 41, the temperature of the object to be heated during cooking cannot be accurately detected, and the object to be heated is abnormally heated, or the heating of the object to be heated is heated. There has been a problem that a stove with poor usability is provided in which combustion stops in a state where it is not performed.

  The present invention proposes a burner in which all the flame openings are formed on the upper surface side of the burner cap in order to solve the above-described conventional problems, shortens the distance from the bottom of the pan, and improves the thermal efficiency by heating uniformly. In particular, in addition to ensuring stable ignition performance in a configuration in which all the flame outlets are provided on the upper surface side of the burner cap, it is possible to improve energy saving and thermal efficiency by providing a configuration for detecting extinction without blowing out. The purpose is to provide an inexpensive gas stove that is easy to manufacture in terms of manufacturing.

In order to solve the above problems, the gas stove of the present invention is
A burner body that has an annular head with an opening on the upper surface and mixes the supplied gas and combustion air;
Removably attached to the annular head of the burner body,
A flame outlet A having a cross-sectional shape with one end projecting upward from the other end face is radially arranged at equal circumferential intervals toward the center side to form a main flame mouth portion,
A burner cap that forms a flame in a swirling manner by ejecting a mixed gas supplied from the burner body;
Removably attached to the outside of the burner cap,
And the covering body which forms a space portion having an opening A and opening B in the burner port side and lower side,
An ignition electrode disposed in the space of the covering,
Comprising a thermoelectric element part of the extinguishing safety device disposed outside the burner cap at a position facing the ignition electrode ,
Before the outer peripheral wall of Kinetsu photoelectric element unit facing the burner cap to form an auxiliary burner port unit which is disposed opposite the burner ports having a cross section which is protruded from the other end face at one end,
The auxiliary flame mouth portion ejects the mixed gas supplied from the burner body to form a collision flame,
The thermoelectric element part of the extinguishing safety device is arranged at a substantially middle part of the auxiliary flame opening part.

  According to the above invention, the gas from the radial flame port formed on the upper surface of the burner cap is ejected at a speed obliquely upward, so that a swirl flow is formed and the gas is ejected to form at the flame port. The burned flame exhibits swirl combustion. Therefore, when the object to be heated is heated by swirling combustion, the combustion gas is forced to be stirred by the swirling flow, so that a turbulent flow state occurs. Since the turbulent combustion gas flows on the surface of the object to be heated, the temperature boundary layer generated between the surface of the object to be heated and the combustion gas is thinned, so that the heat transfer coefficient between the object to be heated and the combustion gas is increased. Therefore, the amount of heat transferred from the combustion gas to the object to be heated increases. A gas stove equipped with the above-described stove burner can provide an energy-saving gas stove with high thermal efficiency.

  In addition, the swirling flow causes the swirling phenomenon induced by the swirling flow in the air around the swirling flow, so the diffusion coefficient between the combustion flame and the secondary air for combustion increases during combustion, and the combustion Sufficient secondary air is supplied to the flame to achieve complete combustion. This complete combustion can provide a safe gas stove that does not generate carbon monoxide or the like.

Further, a covering body provided with a space portion having an opening A having one end opened to the flame opening side and an opening B having the other end opened to the lower side outside the flame opening is disposed outside the burner cap, The ignition part may be configured by including an ignition electrode in the part and forming a discharge target from the ignition electrode in the space part . Since the gas ejected from the flame port on the upper surface of the burner cap is ejected at a speed obliquely upward, it exhibits a swirling flow. A part of the swirling flow swirls out of the outer diameter of the burner cap due to the centrifugal force generated by the swirling flow outside the burner cap. Accordingly, a part of the swirling flow swirling outside the outer diameter of the burner cap flows into the space formed by the outer peripheral wall of the burner cap and the covering. When discharging is performed from the ignition electrode toward the discharge target in a state where such a swirling flow is generated, the gas flowing in the swirling flow is present in the discharge space portion, so that it is reliably ignited and combustion starts. In addition, since the ignition electrode is covered with a covering that forms a space, the soup may become wet or dirty even if boiled juice splatters or spills during cooking from the object to be heated. Therefore, it is possible to provide an easy-to-use gas stove by reliable ignition because the electric discharge is surely performed without causing electrical leakage.

Further, in the stove burner which is ignited by the above ignition structure and forms a swirling main flame on the upper surface of the burner cap, a flame outlet having a cross section in which one end protrudes from the other end surface at a suitable position on the outer peripheral wall of the burner cap A supplementary flame mouth part arranged so as to face A is formed, a mixed gas supplied from the burner body is ejected to form a collision flame, and it disappears in a substantially middle part of the auxiliary flame mouth part and disappears. An element part may be provided. Gas is ejected from the flame outlet B in the circumferential direction of the outer periphery of the burner cap, and from the flame orifice C is ejected in the circumferential direction opposite to the gas ejected from the flame orifice B. Therefore, the gas ejected from the flame port B and the gas ejected from the flame port C are in a flow state in which they collide at a substantially intermediate portion between the flame port B and the flame port C. Therefore, when combustion is started at the flame mouth B and the flame mouth C, the flame formed at the time of combustion forms a collision flame between the flame mouth B and the flame mouth C.

At the same time, a swirling flow is exhibited at the main flame opening and combustion is continued, and a swirling flow of secondary air is generated around the conoburner, so the impinging flame is also blown away because it is formed in the swirling flow. In this way, the swirl flow acts, but the gas from the flame port C is jetted in the direction opposite to the jet direction from the flame port B. In this way, the collision flame continues without being blown away, and the thermoelectric element portion of the safety device disappears stably and is heated by the collision flame. Accordingly, it is possible to provide a stove with good usability that does not cause a problem of disappearing during use.

In addition, a flame mouth A having a cross-section with one end projecting upward from the other end surface is provided at equal circumferential intervals toward the center of the burner cap, and a planar portion is provided at both ends of the flame mouth portion to provide a flame mouth dimension. It is possible to adopt a configuration that can reduce the variation in the thickness and can press everything including the flame opening . This makes it easy to make and cheap.

  In addition, the main flame mouth part has a swirling flow due to the force that blows out in the circumferential direction and the force that exhaust heat is further exhausted from the upper direction through the bottom of the pan, resulting in a secondary secondary in the center. More secondary air can be sucked than the air passage hole, and good combustion can be obtained. Furthermore, the bottom of the pan and the burner can be brought closer to each other, and energy saving and thermal efficiency can be improved.

  The gas stove of the present invention has a reliable ignition performance that is resistant to spillage of boiled juice with energy saving with improved thermal efficiency, and forms a collision flame along the outer peripheral wall of the burner cap, and disappears in the flame. By disposing the thermoelectric element portion, stable combustion detection without disappearing can be performed, and an easy-to-use gas stove can be provided.

The first invention is
A burner body that has an annular head with an opening on the upper surface and mixes the supplied gas and combustion air;
Removably attached to the annular head of the burner body,
A flame outlet A having a cross-sectional shape with one end projecting upward from the other end face is radially arranged at equal circumferential intervals toward the center side to form a main flame mouth portion,
A burner cap that forms a flame in a swirling manner by ejecting a mixed gas supplied from the burner body;
Removably attached to the outside of the burner cap,
And the covering body which forms a space portion having an opening A and opening B in the burner port side and lower side,
An ignition electrode disposed in the space of the covering,
Comprising a thermoelectric element part of the extinguishing safety device disposed outside the burner cap at a position facing the ignition electrode ,
Before the outer peripheral wall of Kinetsu photoelectric element unit facing the burner cap to form an auxiliary burner port unit which is disposed opposite the burner ports having a cross section which is protruded from the other end face at one end,
The auxiliary flame mouth portion ejects the mixed gas supplied from the burner body to form a collision flame,
The thermoelectric element portion of the extinguishing safety device is disposed in a substantially middle portion of the auxiliary flame opening portion.

As a result, a swirl flame with high thermal efficiency can be formed on the upper surface side of the burner cap, and a reliable ignition configuration utilizing a gas ejection form that forms a swirl flow can be secured, and the outer periphery of the burner cap There is no blow-off phenomenon due to the collision flame of the auxiliary flame opening formed on the wall, and stable combustion detection can be performed by continuously heating the thermoelectric element portion.

2nd invention is equipped with the flame mouth B and the flame mouth C which form the said auxiliary flame mouth part, and the said flame mouth B and the flame mouth C are plane parts on the flame mouth surface formed by making one end protrude from the other end surface. The gas stove according to claim 1, wherein the gas stove is provided.

Thereby, the auxiliary flame mouth part is comprised by the flame mouth B and the flame mouth C which provided the plane part in the flame face.
Therefore, since the flow direction of the gas to be ejected is restricted, the gas is ejected along the parallel portion in the tangential direction of the outer periphery of the burner cap. Therefore, the collision flame obtained by jetting from both flame outlets has a collision point near the outer periphery of the burner cap, so a negative pressure region is formed between the collision point and the outer wall of the burner cap, and the Coanda effect is more stable. A collision flame can be obtained, and stable heating of the thermoelectric element can be obtained.

  Further, when pressing, the flat part is applied to the mold, and the flame opening B and the flame opening C having a slit width dimension with little variation are obtained.

According to a third aspect of the present invention, there is provided a flame mouth D for ejecting a mixed gas in a direction different from the ejection direction of the flame mouth B and the flame mouth C between the flame mouth B and the flame mouth C forming the auxiliary flame mouth portion. It is a thing.

According to a fourth aspect of the present invention, the flame mouth D is provided such that the flame of the flame mouth D exists in the center of the collision flame formed by the flame mouth B and the flame mouth C.

As a result, a flame is formed outward from the outer peripheral wall of the burner cap at the substantially intermediate portion of the collision flame formed along the outer peripheral wall of the burner cap, and burns. The entire flame volume becomes larger, and the thermoelectric element part is more easily heated.At the same time, even if the position of the thermoelectric element is slightly misaligned due to assembly variations, it will be heated by a large flame, so the performance of the stable safety device can be obtained. It is done.

  In addition, even if the combustion amount of the stove burner is adjusted when the gas stove is used, the thermoelectric element continues to heat without being extinguished because it is a change from the state in which a large amount of gas is ejected even if the flame is reduced. Therefore, the gas stove can be used safely without extinguishing the fire.

5th invention has the ignition structure of the gas which forms a convex-shaped discharge target in the position with respect to the said space part of the said covering body, and injects in a swirl form on the said burner cap upper surface. The gas stove according to claim 1.

As a result, since the discharge space between the ignition electrode and the discharge target is configured closer to the flame outlet from which gas is ejected, the gas presenting a swirling flow is surely present in the discharge space during discharge, so reliable ignition is possible. Performance is obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by the form of a present Example.

(Embodiment 1)
FIG. 1 shows a sectional view of a combustion part of a gas stove according to the first embodiment of the present invention, and FIG. 2 shows a gas stove equipped with the combustion part of the present invention. 3 is a top view of the combustion part, FIG. 4 is an enlarged sectional view of an ignition part of the combustion part, and FIG. 5 is an enlarged sectional view of a flame port.

  6 is a diagram showing the relationship between the flame outlet B and the flame outlet C constituting the auxiliary flame mouth portion formed on the outer peripheral wall of the burner cap, FIG. 7 is a diagram showing a section of the auxiliary flame mouth portion, and FIG. -B shows a cross-sectional view.

In the figure, reference numeral 1 denotes a gas stove having a stove burner 2, and the stove burner 2 has an annular head having an opening on the upper surface, and a burner body 3 for mixing supplied gas and combustion air, and this burner body. 3, the burner cap 4 is press-worked with a stainless material or the like, and the gas seal portion is a cylindrical portion 6 of the central secondary air passage hole 5 and an outer cylindrical portion 7. It consists of two places. A burner cap 4 is placed on the burner body 3 to form a secondary air passage hole 5. Further, on the upper surface side of the burner cap 4, flame ports A 8 having a cross-sectional shape with one end projecting upward from the other end surface are radially arranged at equal circumferential intervals toward the center side, and the main flame port portion 8 A. The shape of the flame outlet A 8 is a shape in which one end 9 protrudes upward from the other end face 10, and the flame slit width 12 is formed by press working. It is designed to face diagonally upward. A swirl flow is generated by the flame flowing obliquely upward along the circumference, and optimal good combustion is obtained by sucking and supplying the secondary air from the secondary air passage hole 5 in the center of the burner cap 4. .

  In addition, a swirling flow is generated in the flame mouth part by the force that blows out in the circumferential direction and the force that exhaust heat is further discharged from the upper direction through the bottom of the pan, and the center secondary air passes. More secondary air than the holes 5 can be sucked and good combustion can be obtained. Therefore, the distance between the heated object bottom and the stove burner 2 can be reduced, and energy saving and thermal efficiency can be improved.

  Further, a cover 14 is provided on the outer side 13 of the burner cap 4, and has an opening A 16 on the outer side 13 of the flame outlet A 8 and an opening B 17 below the outer side 13 in the configuration with the outer peripheral wall 15 of the burner cap 4. A space portion 18 is formed, and an ignition electrode 19 is provided in the space portion 18, and a covering member 14 on the surface facing the space portion 18 is disposed on the surface portion 18 corresponding to the ignition electrode 19 with respect to the space portion 18. A convex discharge target 37 is configured to form an ignition unit 34, and a combustion unit 35 of the gas stove 1 is configured. 36 is a gas stove of the gas stove 1 on which the heated object 24 is placed and used for cooking or the like.

  Thereby, when the operation part of the gas stove 1 is ignited, the flame mouth A8 of the burner cap 4 of the stove burner 2 is configured with the flame mouth slit width 12, so that the gas ejection from the flame mouth A8 is directed obliquely upward. become. A swirling flow is generated by the gas jetted obliquely upward and flowing obliquely upward along the circumference. At the same time, since the gas from the flame outlet A8 has a velocity obliquely upward, a part of the swirl flow is caused by the centrifugal force generated by the swirl flow at the outer portion 13 of the burner cap 4 and the burner cap 4 It swivels out of the outer diameter of the outside. Therefore, a part of the swirling flow swirling outside the outer diameter of the burner cap 4 swirls in a state of flowing into the space portion 18 constituted by the outer peripheral wall 15 of the burner cap 4 and the covering body 14 from the opening A16. is doing. When discharging from the ignition electrode 19 toward the discharge target 37 in a state where such a swirling flow is generated, the gas flowing in the swirling flow from the opening A16 to the space portion 18 is present, so that it is reliably ignited and combustion starts. To do. Combustion is obtained by sucking and supplying secondary air from the central secondary air passage hole 5 to obtain optimum good combustion.

  In addition, the flame outlet A8 has a swirling flow due to the force that is blown out in the circumferential direction and the force that the exhaust heat is further discharged from the upper direction through the bottom of the object to be heated 24 as the flame is inclined upward. More secondary air can be sucked than the central secondary air passage hole 5, and good combustion can be obtained. Therefore, when the object to be heated is heated by swirling combustion, the combustion gas is forced to be stirred by the swirling flow, so that a turbulent flow state occurs. Since the turbulent combustion gas flows on the surface of the object to be heated 24, the temperature boundary layer generated between the surface of the object to be heated 24 and the combustion gas is thinned, so that the heat transfer coefficient between the object to be heated 24 and the combustion gas is large. Become. Therefore, the amount of heat transferred from the combustion gas to the object to be heated 24 increases. The gas stove 1 equipped with the above-described stove burner 2 can provide an energy-saving gas stove 1 with high thermal efficiency. In addition, since good combustion is obtained by stirring, the distance between the bottom of the object to be heated 24 and the stove burner 2 can be reduced, and energy saving and thermal efficiency can be improved.

Further, since the ignition electrode 19 is covered with the covering 14 that constitutes the space portion 18, even if boiled juice spills or spills during cooking from the article to be heated 24 or the like, Since it does not become dirty, it discharges reliably without causing electrical leakage, so that it is possible to provide an easy-to-use gas stove 1 by reliable ignition.

Further, a part of the gas flows into the space 18 until ignition, but the combustion flame is burner cap 4 in relation to the combustion speed or the amount of combustion air of the combustion flame formed at the flame opening simultaneously with ignition. Since the cover 14 is not directly heated by the combustion flame because there is no phenomenon that protrudes to the outside 13, a safe and economical gas stove with little temperature rise and no loss of combustion heat can be provided.

  As described above, the gas stove in the present embodiment provides an ignition configuration that can ensure stable ignition performance in a configuration in which all the flame openings are provided on the upper surface side of the burner cap.

  In the figure, an auxiliary flame mouth portion is arranged on the outer peripheral wall 15 of the burner cap 4 with a flame mouth B30 and a flame mouth C31 having a cross section in which one end 9 projects outwardly from the other end face 10 and facing each other. 28 is formed, and the thermoelectric element portion 20A of the safety device 20 is provided at a substantially intermediate portion between the flame mouth B30 and the flame mouth C31.

  Thereby, the collision phenomenon of the gas ejected from the flame opening B30 and the flame opening C31 occurs. When the collision flame 21 generated by this collision phenomenon is formed, the thermoelectric element portion 20A of the safety device 20 is turned off by the stable collision flame 21 opposed to the swirling flow, so that the thermoelectric due to the collision flame 21 being blown off is heated. The state where the element portion 20A is not heated does not occur. Therefore, the user-friendly gas stove 1 that does not disappear can be provided.

(Embodiment 2 )
FIG. 9 is a sectional view of the flame openings B and C according to the second embodiment of the present invention . In addition, the same number is attached | subjected to the same function and action as Embodiment 1, and description is abbreviate | omitted.

In the figure, it is a gas stove 1 having a stove burner 2 having a slit width 29 shape in which a flat portion 25 is provided at one end 22 and the other end 23 of the flame outlet B 30 and the flame outlet C 31 of the burner cap 4.

Thus, the flame port B 30 and to both ends constituting an outlet constituting the flame hole C31 is to have a flat portion 25 to each other, the burner cap 4 the gas along the planar portion 25 so that the flow direction is restricted Is ejected in the tangential direction of the outer periphery 26 of the nozzle. Therefore, since the collision flame 21 obtained by jetting from both the flame outlets has the collision point 27 in the vicinity of the outer periphery 26 of the burner cap 4, a negative pressure region is formed between the collision point 27 and the outer peripheral wall of the burner cap 4. since collision flame 21 more stable caused Coanda effect can be obtained more stable thermoelectric element unit 20 a heating of the resulting so.

In addition, when pressing, the flat part 25 is applied to the mold to obtain a flame opening B30 and a flame opening C31 having a slit width 29 with little variation.

(Embodiment 3 )
FIG. 10 is a diagram showing a state in which the flame mouth is configured to heat the thermoelectric element unit according to the third embodiment of the present invention. In addition, the same number is attached | subjected to the function and effect | action equivalent to other embodiment, and description is abbreviate | omitted.

  A burner 2 provided with a flame port D32 for ejecting a mixed gas in a direction different from the ejection direction of the flame port B30 and the flame port C31 between the flame port B30 and the flame port C31 formed on the outer peripheral wall 15 of the burner cap 4. A gas stove 1 having

  Thereby, since the flame formed in the flame mouth D32 exists and burns in the center of the collision flame 21 formed in the flame mouth B30 and the flame mouth C31, the entire flame volume becomes larger and the thermoelectric element portion becomes larger. 20A becomes easy to be heated, and at the same time, even if the position of the thermoelectric element is slightly displaced due to assembly variations, it is heated by the flame, so that stable safety device performance can be obtained. In addition, even if the combustion amount of the stove burner is adjusted when the gas stove is used, the thermoelectric element continues to heat without being extinguished because it is a change from the state in which a large amount of gas is ejected even if the flame is reduced. Therefore, the gas stove can be used safely without extinguishing the fire.

  As described above, the gas stove according to the present invention can provide reliable ignition and good combustion, and can be applied to uses such as a safe and easy-to-use cooker with stable extinction detection performance.

Sectional drawing of the combustion part of the gas stove in Embodiment 1 of this invention External view of gas stove equipped with the same burner Top view of the combustion section of the stove Expanded sectional view of the ignition part of the stove Expanded cross-sectional view of the stove of the stove The figure which shows the relationship between the flame mouths B and C which comprise the auxiliary flame mouth part formed in the outer peripheral wall of the stove Cross-sectional view of auxiliary stove of same stove BB sectional view of the auxiliary flame mouth of the stove Sectional drawing of flame mouth B and C in Embodiment 2 of this invention The figure which shows the flame-mouth structure state which heats the thermoelectric element part in Embodiment 3 of this invention. Side view of a conventional stove burner Side sectional view of another conventional stove

1 Gas stove 3 Burner body 4 Burner cap 8 Flame outlet A
8A Main flame opening 14 Cover 15 Outer wall 16 Opening A
17 Opening B
18 Space part 19 Ignition electrode 20 Falling-off safety device 20A Thermoelectric element part 21 Collision flame 25 Flat part 28 Auxiliary flame part 30 Flame part B
31 Flame C
32 Flame D

Claims (5)

A burner body that has an annular head with an opening on the upper surface and mixes the supplied gas and combustion air;
Removably attached to the annular head of the burner body,
A flame outlet A having a cross-sectional shape with one end projecting upward from the other end face is radially arranged at equal circumferential intervals toward the center side to form a main flame mouth portion,
A burner cap that forms a flame in a swirling manner by ejecting a mixed gas supplied from the burner body;
Removably attached to the outside of the burner cap,
And the covering body which forms a space portion having an opening A and opening B in the burner port side and lower side,
An ignition electrode disposed in the space of the covering,
Comprising a thermoelectric element part of the extinguishing safety device disposed outside the burner cap at a position facing the ignition electrode ,
Before the outer peripheral wall of Kinetsu photoelectric element unit facing the burner cap to form an auxiliary burner port unit which is disposed opposite the burner ports having a cross section which is protruded from the other end face at one end,
The auxiliary flame mouth portion ejects the mixed gas supplied from the burner body to form a collision flame,
A gas stove in which a thermoelectric element part of the extinguishing safety device is arranged in a substantially middle part of the auxiliary flame opening part. A flame mouth B and a flame mouth C forming the auxiliary flame mouth part,
The gas stove according to claim 1, wherein the flame mouth B and the flame mouth C are configured to have a flat portion on a flame mouth surface formed by projecting one end from the other end surface. The flame mouth D which ejects mixed gas in the direction different from the ejection direction of the said flame mouth B and the flame mouth C was provided between the flame mouth B and the flame mouth C which form an auxiliary flame mouth part. The gas stove described in 1. The gas stove according to claim 3, wherein the flame mouth D is provided so that the flame of the flame mouth D exists in the center of a collision flame formed by the flame mouth B and the flame mouth C. A convex discharge target is formed at a position relative to the space of the covering, and the burner
The gas stove according to any one of claims 1 to 4, wherein the gas stove has an ignition structure for jetting in a swirling manner on the upper surface of the cap.