JPH05164324A - Gas burner device - Google Patents

Abstract

PURPOSE:To arrange an ignition electrode below a burner cap in a gas burner device provided with a ceramic burner cap in such a way as a gas flow from its flame port may not be prohibited. CONSTITUTION:A gas burner is comprised of a main body 1 of a burner having an opening at an upper surface of a distribution chamber 3 communicating with a mixing pipe 2, and a ceramic burner cap 4 provided with several teeth 5 at its lower peripheral surface. The burner cap 4 is mounted on the upper surface of the peripheral wall 6 of the distribution chamber 3 of the main body 1 of the burner so as to form a flame port 7 between each of the teeth 5. An igniter device 9 provided with an igniting electrode 12 is placed near an insulating holder member of the gas burner. A tooth piece 10a is formed at the insulating holder member constituting the igniter device 9, and then an igniting electrode 12 is arranged at the tooth piece 10a. The tooth piece 10a formed in the holder member is placed in front of the electrode 5 arranged at the burner cap 4 or at a tooth recessed part arranged at a part of the burner cap 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas burner device having an ignition electrode mainly used as a heat source for a stove.

[0002]

2. Description of the Related Art Conventionally, a burner body having an opening on the upper surface of a distribution chamber connected to a mixing tube and a burner cap having a large number of tooth pieces on the lower surface of its outer peripheral portion are provided on the lower surface of the tooth piece. There is known a gas burner of the type which is placed on the upper surface of the peripheral wall of the burner body and forms a flame opening between each tooth piece.
In this case, if the ignition electrode for igniting the gas from the flame port is located outside the burner cap, it is liable to be satisfactorily ignited by being contaminated by the boiling water generated during cooking. Therefore, there is also one in which the ignition electrode is provided below the burner cap, and the burner cap is used to prevent the boiling liquid from directly covering the ignition electrode. On the other hand, since the burner cap receives boiling water, it tends to deteriorate if the burner cap itself is made of metal. Therefore, if the burner cap is made of ceramic, this can be prevented, but if the burner cap is made of ceramic, there is a problem that no spark is generated between the ignition electrode and the burner cap.

[0003]

Therefore, the burner cap is made of ceramic so as to have durability against broth, and an ignition electrode is provided below the burner cap to prevent the ignition electrode from being simmered. At this point, it is conceivable that sparks fly from the ignition electrode toward the ground electrode so that ignition can be performed. In this case, in order to properly blow a spark from the ignition electrode to the ground electrode, that is, to prevent the spark from flying to a position other than the desired position of the ground electrode, when the burner body is made of casting, the ignition electrode is removed from the burner body. If the burner body is also made of ceramic and the ground electrode provided on the burner body side is, for example, a thermocouple, it is unclear to which part of the thermocouple the spark will fly from the ignition electrode. In order to avoid this, it is necessary to fly to a desired portion of the thermocouple, for example, the tip. When a spark is to be blown to such a position, the holding member (insulator portion) of the ignition electrode comes to a position where it faces the flame opening and obstructs the flow of fuel gas.

An object of the present invention is to obtain a gas burner device in which the ignition electrode can be installed on the lower surface of the burner cap without obstructing the flow of such fuel gas.

[0005]

In order to achieve such an object, the present invention provides a gas burner apparatus according to claim 1, wherein a burner main body having an opening on the upper surface of a distribution chamber connected to the mixing tube and a lower surface of the peripheral portion. A ceramic burner cap provided with a large number of teeth, and the burner cap is placed on the lower surface of the teeth on the upper surface of the peripheral wall of the distribution chamber of the burner body to form flame openings between the teeth. A gas burner and an igniter having an insulative holding member with an ignition electrode, wherein a tooth piece is formed on the insulative holding member constituting the igniter and the tooth piece is ignited. Electrode is provided and the tooth piece is made to face the front of the tooth provided on the burner cap.

According to a second aspect of the present invention, there is provided a gas burner device comprising a burner body having an opening on the upper surface of a distribution chamber connected to the mixing tube, and a ceramic burner cap having a large number of teeth on the lower surface of the peripheral portion. A gas burner of the type in which the lower surface of the tooth is placed on the upper surface of the peripheral wall of the distribution chamber of the burner body to form flame openings between the teeth, and an igniter having an insulating electrode with an ignition electrode. In the gas burner device including the above, a toothless portion is formed in a part of the burner cap, and a tooth piece is formed on the insulating holding member that constitutes the igniter, and an ignition electrode is provided on the tooth piece. The tooth piece is provided so as to face the toothless portion.

[0007]

In the gas burner device having the above structure,
Since the burner cap is made of ceramic, it does not deteriorate due to broth. The ignition electrode is located on the lower surface of the burner cap and does not come into contact with broth. Moreover, the holding member does not hinder the flow of gas from the flame port.

[0008]

Embodiments of the present invention will be described with reference to the drawings. In the drawing, A shows a gas burner including a burner body 1 having an annular distribution chamber 3 connected to the mixing tube 2 and having an upper surface opened, and a ceramic burner cap 4 having a large number of teeth 5 on the lower surface of the outer peripheral portion. The burner cap 4 is placed on the upper surface of the peripheral wall 6 of the distribution chamber 3 of the burner body 1 with the lower surface of the tooth 5 thereof, and the opening of the upper surface of the distribution chamber 3 is closed, and the burner cap 4 is distributed between the teeth 5. A flame port 7 is formed which is continuous with the chamber 3. Reference numeral 9 denotes an igniter including an insulating holding member 10 and an ignition electrode 12. The igniter 9 has an insulating holding member 10
The toothed piece 10a is formed on the inner surface of the burner cap 4 and the ignition electrode 12 is projected from the toothed piece 10a, and the toothed piece 10a is exposed to the toothless portion 8 formed in a part of the burner cap 4. More specifically, in the embodiment shown in FIGS. 1 to 3, the burner body 1 is made of casting and the insulating holding member 10 is made of ceramic, and the pair of tooth pieces 1 is provided on the upper end of the holding member 10.
0a and 10a are formed, and the ignition electrode 12 is provided forward from the front surface of one tooth piece 10a, and the ground electrode 11 is projected forward from the front surface of the other tooth piece 10a.
No. 0 was attached to the concave portion 1a provided on the side surface of the burner body 1.
The adjacent two of the teeth 5 provided on the burner cap 4
When the outer side of the tooth 5 of the book is cut out to form the half tooth portion 5a, 5a on the outer side thereof and the burner cap 4 is placed on the upper surface of the outer side wall 6 of the burner body 1, the half tooth 5a, 5a is formed. The tooth pieces 10a and 10a are arranged in front of the tooth. In this case, the tooth piece 10a may be lower than the same height as the half tooth 5a, and the ignition electrode 12 may be projected from the upper surface thereof.
The other tooth piece 10a may not have the same height as the half tooth 5a but lower than this, and the ground electrode 11 may protrude from the upper surface thereof. Incidentally, when the burner cap 4 is placed on the upper surface of the outer wall 6 of the burner body 1, the distribution chambers of the burner body 1 are arranged so that the tooth pieces 10a, 10a are always aligned in front of the half teeth 5a, 5a. A recess 6a is provided on the upper surface of the peripheral wall 6 of No. 3 and a projection 5b is formed on the lower surface of the specific tooth 5 provided on the burner cap 4 so as to be fitted thereto. It should be noted that the recess 6a and the projection 5b are all provided even in the embodiment provided with the toothless portion 8 described below.

When the toothless portion 8 is provided in this manner, the tooth piece 10a is accommodated in the toothless portion 8 so that the ignition electrode 12 can be easily installed on the lower surface of the burner cap 4 and the other tooth 5 and There is an advantage that the relationship with the outer peripheral edge of the burner cap 4 is not affected.

In the embodiment shown in FIG. 4, the burner cap 4
All adjacent two teeth 5 of the teeth 5 provided in the above are cut out to form a toothless portion 8, and the burner cap 4 is attached to the burner body 1.
When placed on the upper surface of the outer peripheral wall 6, the toothless portions 8 of the insulating holding member 10 face the toothless portions 8. The outer surfaces of the tooth pieces 10a, 10a are slanted, and the ignition electrode 12 and the ground electrode 1 are respectively attached to the slanted outer surfaces.
1 was provided so as to project from the bottom to the top. In the embodiment shown in FIG. 5, the toothless portion 8 is formed by removing two adjacent teeth 5, and when the burner cap 4 is placed on the upper surface of the outer peripheral wall 6 of the burner body 1, the tooth pieces 10a, 10a are formed. It faces the toothless portion 8 provided on the burner cap 4, which is not particularly different from that in the second embodiment, but this one forms a flat portion 13 on the tooth pieces 10a, 10a, Ignition electrode 12
In addition, the ground electrode 11 is provided so as to project from the bottom to the top. In addition, in these examples, not only the ignition electrode 12 but also the ground electrode 11 was supported by the holding member 10. However, in the ground electrode 11, the burner body 1 itself is used as the ground electrode, or a separate ground electrode is used as the burner body. It may be provided on the first side, that is, the burner body 1 or the stove body to which the burner body 1 is attached. In this case, a thermocouple or the like for detecting the flame from the flame port 7 can be applied to the ground electrode. When a separate ground electrode is provided on the burner body side as described above, the tooth piece 10a provided on the holding member 10 is connected to the ignition electrode 12 from the tooth piece 10a.
And only one tooth 5 out of the teeth 5 provided on the burner cap 4 is cut out wholly or halfly to form a toothless portion 8. The tooth piece 10a may be exposed to the portion 8.

In the case of projecting the ignition electrode 12 from the tooth piece 10a of the holding member 10, the above-mentioned example shows an example of projecting forward from the front surface of the tooth piece 10a.
You may make it protrude to the side of 0a.

To further explain this, a pair of tooth pieces 10
a, a tooth piece 10a is provided on the holding member 10, and the outer sides of two adjacent teeth 5 of the teeth 5 provided on the burner cap 4 are cut out to form a half tooth 5a, and a toothless portion on the outer side as a half tooth 5a. 8
And when the burner cap 4 is placed on the upper surface of the outer wall 6 of the burner body 1, the half tooth 5a, the tooth piece 10a and the tooth piece 10a are aligned in front of the half tooth 5a, and the tooth piece 10
The ignition electrode 12 and the ground electrode 11 may be provided so as to project from the opposite side surfaces of a and 10a.

The pair of tooth pieces 10a and the tooth piece 1 are formed in this manner.
The ignition electrode 12 and the ground electrode 11 are provided on opposite side surfaces of 0a.
If the ignition electrode 12 is provided, the ignition electrode 12 and the ground electrode 11 do not necessarily have to project, and the tip end portion may be exposed from the tooth piece 10a. That is, as shown in FIGS. 6 and 7, the ignition electrode 12 and the ground electrode 11 may have their tips flush with the surface of the tooth piece 10a.
It may be at a position slightly retracted from the surface of.

Further, as shown in FIGS. 8 and 9, one tooth 5
The holding member 10 having a width of 4 is attached to the recess 1a provided on the side surface of the burner body 1 so that the upper portion thereof projects above the upper surface of the burner body 1, and the protruding upper portion of the holding member 10 is a tooth piece 10a. The ignition electrode 12 on the side surface of the
In addition, the burner body 1 itself may be used as a ground electrode, or a protrusion serving as a ground electrode may be provided on the burner body 1 so that a spark can be blown between the ground electrode and the ignition electrode 12. As shown, the holding member 10 having the width of one tooth 5 is provided on the side surface of the burner body 1 to form a recess 1a.
The upper part of the holding member 10 is attached to the burner body 1 so that the upper part thereof protrudes above the upper surface of the burner main body 1, and the ignition electrode 12 projects on the side surface of the tooth piece 10a. Out of three adjacent teeth 5 among 5 are cut out to form a half tooth 5a, a half tooth 5a, and a toothless portion 8 on the outside as a half tooth 5a, and the burner cap 4 is attached to the outer wall of the burner body 1. When placed on the upper surface of 6, the tooth piece 10a is aligned in front of the half tooth 5a on one side, that is, in front of the left half tooth 5a in the drawing, and the distribution of the burner body 1 corresponding to the front of the right half tooth 5a is arranged. A protruding ground electrode 11 may be provided on the upper surface of the peripheral wall 6 of the chamber 3, and the ignition electrode 12 may be protruded from the side surface of the tooth piece 10 a facing the ground electrode 11.

Further, as shown in FIG. 11, the holding member 10 having the width of one tooth 5 is protruded above the upper surface of the burner main body 1 in the recess 1a provided on the side surface of the burner main body 1. And the flame port 7 in the recess 1a.
The thermocouple 14 for detecting the flame of the burner main body 1 so that its upper portion projects above the upper surface of the burner body 1, and the two adjacent teeth 5 of the teeth 5 provided on the burner cap 4 are When the burner cap 4 is placed on the upper surface of the outer wall 6 of the burner body 1, the half tooth 5a is cut out on the outer side and the toothless portion 8 is formed on the outer side as the half tooth 5a. That is, the tooth pieces 10a may be aligned in front of the left half tooth 5a in the figure, and the thermocouple 14 may be used as a ground electrode to generate a spark between the tooth electrode 10a and the ignition electrode 12.

In these embodiments as well, the ignition electrode 12 may not be projected from the tooth piece 10a but may be exposed only at its tip.

Further, as shown in FIGS. 12 and 13, among the teeth 5 provided on the burner cap 4, three adjacent teeth 5 are provided.
Is cut out on the outer side of the half tooth 5a to form the toothless portion 8 on the outer side thereof, and is displaced to one side of the upper end of the holding member 10 having a width extending over the outer sides of the approximately three half teeth 5a, that is, As shown in the figure, a tooth piece 10a facing the front surface of one half tooth 5a is provided at a position offset to the left, and an ignition electrode 12 is protruded from the side surface of the tooth piece 10a, and the grounding electrode 10 is opposed to this. The electrode 11 may be projected upward from the upper surface of the holding member 10.

Further, in the above-mentioned embodiment, the burner cap 4 is used.
The toothless portion 8 is formed in a part of the tooth and the tooth piece 10a is made to face the toothless portion 8. As shown in FIG. 14, the tooth piece 10a is placed in front of the tooth 5 of the burner cap 4. You may face it. That is, as shown in FIG. 14, the approaching teeth 5, teeth 5,
The holding member 10 is provided so as to be supported by the burner body 1 so as to be located outside the teeth 5, and the teeth 5 are provided on both sides of the upper portion of the holding member 10 and the tooth pieces 10a, 1a so as to be aligned outside the teeth 5.
0a may be provided, and the ignition electrode 12 and the ground electrode 11 may be provided on the facing surfaces of the tooth pieces 10a, 10a.

Even in the embodiment in which the tooth piece 10a is exposed to the outside of the tooth 5 of the burner cap 4 without providing the toothless portion 8 as described above, each of the embodiments provided with the toothless portion 8 described above. It goes without saying that the same modified example can be adopted.

When the ground electrode 11 and the ignition electrode 12 are provided on the tooth pieces 10a and the opposite side surfaces of the tooth piece 10a,
Alternatively, the tooth piece 10 as shown in the embodiment shown in FIGS.
a, when the ignition electrode 12 and the ground electrode 11 are protruded forward from the front surface of the tooth piece 10a,
As shown in FIG. 11, a tooth piece 10a facing the front surface of one half tooth 5a is provided at a position offset to the left, and an ignition electrode 12 is projected on the side surface of the tooth piece 10a, and a ground electrode facing the tooth electrode 10a. In the case where the ignition electrode 12 and the ground electrode 11 are provided on the common holding member 10 as in the case where the holding member 10 is made to project upward from the upper surface of the holding member 10, the connected metal wire is held. Embedded in the member 10 and then the ground electrode 11
If a desired space between the ignition electrode 12 and the ignition electrode 12 is divided, the ground electrode 11 and the ignition electrode 12 are separately embedded, so that a correct space is secured between them and workability is improved. There is an advantage to get better.

Further, in these embodiments, the insulating holding member 1 is used.
Although 0 is supported on the burner body 1, it may be supported on the burner body side, for example, the hob body.

In the illustrated embodiment, the flame burner 7 is formed in the outer peripheral portion of the annular distribution chamber 3, but the present invention is described. However, the present invention forms the flame outlet 7 in the inner peripheral portion of the annular distribution chamber 3. It goes without saying that it can be applied to the gas burner.

In the above-mentioned embodiment, the burner body 1 is made of cast metal. When the burner body 1 is made of cast metal as described above, when the ignition electrode 12 is provided on the tooth piece 10a, the ignition electrode 12 is moved away from the burner body 1 and sparks fly between the burner body 1 and the burner body 1 which is not the ground electrode. Even if the burner body 1 is made of ceramics, it is advantageous that the problem can be solved. For example, when the ground electrode 11 is a thermocouple as described above, a spark is generated from the ignition electrode 12 to any part of the thermocouple. It is unknown if the ignition electrode 12 is provided on the tooth piece 10a, but the ignition electrode 12 is provided above and can be blown to a desired position of the thermocouple, for example, the tip of the thermocouple. It is advantageous.

[0024]

According to the invention having the above structure,
The ignition electrode can be protected from broth. Moreover, it is possible to perform stable ignition even if the burner cap is made of a ceramic excellent in corrosion resistance, without causing a problem that the holding member holding the ignition electrode leaks out to the flame outlet and obstructs the gas flow. A burner device is obtained and the ignition electrode can be protected from broth.

[Brief description of drawings]

FIG. 1 is a cutaway side view of an embodiment of the present invention.

FIG. 2 is a perspective view of a part of FIG.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is an exploded perspective view of a main part of another embodiment.

FIG. 5 is an exploded perspective view of a main part of still another embodiment.

FIG. 6 is a side view of still another embodiment.

7 is a view taken along the line AA of FIG.

FIG. 8 is a perspective view showing a state in which a burner cap of still another embodiment is removed.

9 is a plan view of FIG.

FIG. 10 is a plan view of a main part of a further embodiment with a burner cap removed.

FIG. 11 is a plan view of the main part of a further embodiment with the burner cap removed.

FIG. 12 is a plan view of a main part of a further embodiment with a burner cap removed.

FIG. 13 is a perspective view of FIG.

FIG. 14 is a plan view of a main part of a further embodiment with a burner cap removed.

[Explanation of symbols]

1 burner body, 2 mixing tubes, 3 distribution chamber,
4 burner caps, 5 teeth, 6 peripheral walls, 7
Flame tip, 8 missing tooth portion, 9 igniter, 10 insulating holding member, 10a tooth piece, 12 ignition electrode.

Claims (2)

[Claims] 1. A burner main body having an opening on the upper surface of a distribution chamber connected to the mixing tube, and a ceramic burner cap having a large number of teeth on the lower surface of the peripheral portion, the burner cap being provided on the lower surface of the teeth. A gas burner device comprising: a gas burner that is placed on an upper surface of a peripheral wall of a distribution chamber of the burner body and forms flame openings between teeth; and an igniter that includes an ignition electrode on an insulating holding member. And a gas burner device in which a tooth piece is formed on the insulating holding member that constitutes the igniter, an ignition electrode is provided on the tooth piece, and the tooth piece faces the front of the tooth provided on the burner cap. .. 2. A burner body having an opening on the upper surface of a distribution chamber connected to the mixing tube, and a ceramic burner cap having a large number of teeth on the lower surface of the peripheral edge, the burner cap being provided on the lower surface of the teeth. A gas burner device comprising: a gas burner that is placed on an upper surface of a peripheral wall of a distribution chamber of the burner body and forms flame openings between teeth; and an igniter that includes an ignition electrode on an insulating holding member. In addition, a toothless portion is formed in a part of the burner cap, and a tooth piece is formed on the insulating holding member that constitutes the igniter, and an ignition electrode is provided on the tooth piece. A gas burner device facing the toothless portion.