JP2711769B2 - Gas burner for stove - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas burner for a stove provided with an ignition electrode and a ground electrode .

[0002]

2. Description of the Related Art Conventionally, a burner body provided with an opening on the upper surface of a distribution chamber connected to a mixing tube, and a burner cap provided with a number of teeth on the lower surface of the outer peripheral portion, the burner cap being attached to the lower surface of the teeth. in the gas burner of the format forming a gas passage between the by placed on the upper surface of the peripheral wall of the burner body each tooth piece Ru known Tei. In this case the ignition electrode is Do Ri wins a misfire soiled by broth generated during cooking to be outside of the burner body. Therefore, there is a device in which the ignition electrode is located below the burner cap and the spark from the ignition electrode is blown to the burner cap. In this case, the burner cap becomes small and the ignition electrode is not contaminated. On the other hand, since the burner cap directly receives the broth, if the burner cap itself is made of metal, it tends to deteriorate. Therefore prevent this if the burner cap and the ceramic, but when the burner cap and the ceramic, there is not the degree such that no cause sparks between the ignition electrode and the burner cap.

[0003]

SUMMARY OF THE INVENTION According to the present invention, the burner cap is made of ceramic and has durability against boiling water.
Causes, by providing an ignition electrode below the burner cap, in the those not expose the broth to the ignition electrode, stove gas burner spark toward the ground electrode from the ignition electrode can be reliably fly ignition Its purpose is to obtain.

[0004]

In order to achieve the above object, the present invention provides a metal burner body having an opening on the upper surface of a distribution chamber connected to a mixing tube, and a number of teeth on the lower surface of a peripheral portion. A gas burner for a cooking stove having a ceramic burner cap, wherein the burner cap is mounted on the upper surface of the peripheral wall of the opening of the burner body with the lower surface of the tooth piece forming a gas passage between each tooth piece. Wherein an ignition electrode is provided close to and below the ceiling surface of the burner cap, and a ground electrode facing the ignition electrode is provided on the burner main body side .

[0005]

In the gas burner for a stove having the above-described structure, the burner cap is made of ceramic, so that it is durable, and the ignition electrode is close to and below the ceiling surface of the burner cap. , Place the burner cap downward
The ignition electrode gets wet with the broth, etc.
You can prevent it from dropping .

In addition, the burner cap is made of ceramic.
The electrode is close to the burner cap ceiling because of its high insulation properties.
Leak discharge does not occur to the burner cap even if placed in contact with
In addition, the amount of gold that is brought close to the ignition electrode to the burner cap
Can be separated from the burner body,
Leak discharge to the main body can be prevented, and ignition of the ground electrode can be prevented.
Is reliably performed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In the first embodiment shown in FIGS. 1 to 3, reference numeral 1 denotes a caster burner main body having an opening 4 provided on the upper surface of an annular distribution chamber 3 connected to the mixing pipe 2; 6 shows a ceramic burner cap provided with 6; the burner cap 5 is placed on the upper surface of the outer peripheral wall 7 of the distribution chamber 3 of the burner main body 1 with the lower surface of the tooth piece 6 to close the upper surface of the opening 4; At the same time, a gas passage 8 connected to the distribution chamber 3 is formed between the teeth 6. Reference numeral 9 denotes an ignition electrode, which is provided below the burner cap 5 so as to penetrate the outer peripheral wall 7 of the burner main body 1 and protrude above the upper surface thereof, at a portion penetrating the outer peripheral wall of the burner main body 1. An insulator 9a is provided.

To explain this further, as shown in FIG. 3, four adjacent teeth 6a are made to project inward from the inner ends of the other teeth 6, and two central teeth 6a of the other teeth 6a are projected. The ignition electrode 9 is exposed between the tooth pieces 6a, and the ignition electrode 9 is
Along the ceiling. Then, a tongue piece 10 is projected downward from a peripheral edge 5a of the burner cap 5 outside the four tooth pieces 6a to form a space 11 between the tooth piece 6a and the tongue piece 10. The tip of the ignition electrode 9 was exposed. In this case, turbulence is generated in the gas passing between the tooth pieces 6a by the tongue piece 10. As a result, it is easy to ignite by sparks flying from the tip of the ignition electrode 9 to the sharp portion as the ground electrode 12 provided on the burner main body 1.

The sharp portion is a portion surrounded by the concave groove 13 by forming a concave groove 13 on the upper surface of the peripheral wall 7 of the burner main body 1.

Since the ceiling surface of the burner cap 5 along the ignition electrode 9 is concave so that the ignition electrode 9 can enter, the ceiling surface is slightly thinner. Reference numeral 15 denotes a central flame outlet, and reference numeral 16 denotes an air passage provided at the center of the burner main body 1 and the burner cap 5. Reference numeral 5b denotes a projection formed on the burner cap 5, and the projection 5b engages with the concave portion 1b of the burner main body 1, and the ignition electrode 9 and the teeth 6
Positioning between a and 6a is performed. In the above-described embodiment, the space 11 is formed by projecting the tongue piece 10 downward from the outer peripheral edge of the burner cap 5 of the tooth pieces 6a, 6a. This is the second embodiment shown in FIGS. As usual,
It can also be formed by projecting the outer ends of the two central tooth pieces 6a outward from the other tooth pieces 6a and connecting them. FIG. 6 shows a third embodiment, in which the ignition electrode 9 is made to penetrate the distribution chamber 3 of the burner main body 1 so as to be along the lower surface of the ceiling surface between the teeth 6a of the burner cap 5. 7 and 8 show a fourth embodiment. In this embodiment, the space 11 is formed outside the tooth pieces 6a, 6a of the burner cap 5, and a part of the upper wall of the outer peripheral wall 7 is formed. Bulging inward, placing the tooth pieces 6a, 6a on the bulging peripheral wall 7,
A through hole 17 is provided in the outer peripheral wall, and an insulator 9 a provided around the ignition electrode 9 is inserted into the through hole 17 so as to protrude above the peripheral wall of the burner main body 1, so that the ignition electrode 9 is formed. The burner cap 5 was arranged along the ceiling surface of the space 11.

In these cases, the ignition electrode 9 is fixedly supported by a fixture 18 provided on the appliance body A.

FIGS. 9 and 10 show a fifth embodiment.
A recess 19 was provided in a part of the peripheral wall, and the ignition electrode 9 was made to extend along the ceiling surface of the burner cap 5 through the recess 19. Other configurations are not particularly different from the previous embodiment. 11 and 12 show a sixth embodiment in which the ignition electrode 9 is used.
Was surrounded by a tooth piece 61 provided on the burner cap 5.

To explain this, a pair of adjacent tooth pieces 6
a, 6a, a continuous piece 6 having the same height as the tooth pieces 6a, 6a.
d to form the tooth piece 61, the outside of one tooth piece 6a is made shorter than the outside of the other tooth piece 6a, and a gas flow is generated outside the shortened tooth piece 6a. And a sharp part 12 as a ground electrode is provided on the upper surface of the outer peripheral wall 7 on which the shortened tooth piece 6a is mounted, and the ignition electrode is arranged along the ceiling surface of the portion surrounded by the tooth piece 61. 9
And the sparks between them. In the fifth and sixth embodiments, the concave portion 19 is provided in a part of the peripheral wall, and the ignition electrode 9 is provided in the concave portion 19. However, the mounting of the ignition electrode 9 is not limited to this. Not even. Also, the sixth
In embodiments, it may protrude the tongue 10 downwardly from the peripheral edge 5a of the outside of the burner cap 5 of the tooth piece 61.

The other construction is not particularly different from the previous embodiment.

FIG. 13 shows a modification of the embodiment shown in FIGS. 11 and 12, in which the ignition electrode 9 is
A thermocouple was used as the ground electrode 12. In this embodiment, the inside of a pair of adjacent teeth 6a, 6a is
a, before linked with continuous piece 6d of the same height as the 6a Kihahen 61
To form a groove 6e provided on the tooth pieces 6a, so as to form a flow of gas toward the portion enclosed by the groove 6e in the tooth piece 61, a thermocouple as a ground electrode 12 in the moiety The sparks fly between the ignition electrode 9 and the thermocouple along the ceiling surface of the portion surrounded by the tooth pieces 61.

In these embodiments, a so-called outer burner is provided in which a large number of teeth 6 are provided on the lower surface of the outer peripheral portion of the burner cap 5 so that a flame is formed outward. For this reason, the ignition electrode 9 is provided outside the distribution chamber 3. However, in a so-called inner burner in which a large number of teeth 6 are provided on the lower surface of the inner peripheral portion of the burner cap 5, the installation position of the ignition electrode 9 is 3 inside.

[0017]

According to the present invention having the above-described structure, the following effects can be obtained. Burner cap is durable without even as corrode the broth for ceramic, also close the ignition electrode on the ceiling surface of the burner cap with a simple structure only provided thereunder, apart downwardly from the burner cap This prevents the ignition electrode from being wetted by the boiling water and lowering the insulation as compared with the one arranged in the vertical direction. In addition, since the ceramic burner cap has a high insulating property, even if the ignition electrode is disposed close to the burner cap, no leak discharge occurs, and this arrangement increases the distance between the ignition electrode and the metal burner main body. Leakage discharge to the burner main body is also prevented, and discharge to the ground electrode is reliably performed and ignition can be reliably performed.

[Brief description of the drawings]

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

FIG. 2 is a cutaway side view of FIG. 1;

FIG. 3 is a sectional view taken along the line AA of FIG. 2;

FIG. 4 is a partial cutaway side view of another embodiment.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

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

FIG. 7 is a partially cutaway side view of still another embodiment.

8 is a perspective view of a part of the burner main body of FIG. 7;

FIG. 9 is a plan view of a burner main body according to still another embodiment.

FIG. 10 is a perspective view of a part of the burner main body of FIG. 9;

FIG. 11 is a cutaway side view of still another embodiment.

FIG. 12 is a back view of the burner cap of FIG. 11;

FIG. 13 is a back view of a part of the burner cap showing a modification of FIG. 11;

[Explanation of symbols]

 Reference Signs List 1 burner body 5 burner cap 6 tooth piece 7 peripheral wall 8 gas passage 9 ignition electrode

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location F23D 14/08 F23D 14/08 G

Claims (1)

(57) [Claims] 1. A metal burner main body having an opening on an upper surface of a distribution chamber connected to a mixing pipe, and a ceramic burner cap having a large number of tooth pieces on a lower surface of a peripheral portion. In a gas burner for a stove of a type in which a gas passage is formed between each tooth piece by being placed on the upper surface of the peripheral wall of the opening of the burner body at the lower surface of the tooth piece, the ignition electrode is attached to the ceiling surface of the burner cap. A gas burner , which is provided close to and below it, and a ground electrode facing the ignition electrode is provided on the burner main body side .