JPH0658544A - Direct ignition device for gas heater - Google Patents

Abstract

PURPOSE:To prevent soup from being over-boiled and spilled over to an ignition plug and unify the shape of combustion flames and the temperature distribution. CONSTITUTION:The top and the front of an ignition plug are covered with a cover board 10 whose tip is curled. A part of gas ejected from a burner port 2 is engulfed into the tip side 11 and ignited therein. Since the ignition plug 5 is covered with the cover board 10, a spilled-over article is hardly built up on the plug and the gas ejected from the burner port is partially engulfed and ignited there. This construction makes it possible to unify the shape of combustion flames and the temperature distribution as it provides an exclusive designed burner port, thereby preventing the generation of unequal portions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called direct ignition device which applies a high voltage from an igniter to an ignition plug attached to a main burner portion of a stove and directly ignites by the energy.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional direct ignition device.

Reference numeral 1 is a gas burner body, 2 is a flame hole, 2a is a flame hole for ignition only, 3 is a burner cap, 4 is a spark casing,
Reference numeral 5 is an ignition plug, and this ignition plug 5 is arranged under the burner cap 3 and the spark housing 4 as shown in FIG. 4, and a spark 6 is blown between the spark plug 5 and the spark housing 4. Reference numeral 7 is an igniter, 8 is a lead wire, and 9 is a power supply wire.

[0004]

However, the above conventional example has the following drawbacks.

A. The spark plug 5 is installed under the burner cap 3 (spark housing 4) so as to be hidden as much as possible so that spillage does not adhere to the spark plug 5. However, there is a large amount of spillage, or anything wrapping around the back of the burner cap 3 may drop and stick to it, causing a problem of ignition failure. Therefore, conventionally, it is often necessary to wipe and clean, which is troublesome to maintain.

B. As shown in FIG. 4, the collar 4a of the spark casing 4 descends from above, and the flame hole 2a for ignition is processed into a shape in which gas concentrates on the ignition plug 5,
During combustion, the flame of this part is different in direction and size compared to the flames of other parts. For this reason, the shape and temperature distribution of the flame become non-uniform in other flame portions.

C. The spilled substance adheres to the spark plug 5 and this fixed portion and causes corrosion, resulting in poor durability.

An object of the present invention is to provide a direct ignition device for a gas stove that does not have the drawbacks described in ac above.

[0009]

The constitution of the present invention is as follows.

A heat-resistant cover plate, whose upper end is bent so as to face the gas flow ejected from the flame hole, and which covers the ignition plug in the front and upper portions, is provided, and this cover plate is attached to the gas burner body by any means. A direct ignition device for a gas stove that is detachably attached to the stove.

[0011]

When the gas cock for ignition is operated, the gas plug is opened, the power of the igniter is turned on at the same time, a high voltage is applied to the spark plug, and a spark flies between itself and the cover plate. As a result, the gas ejected from the main burner is ignited. At the time of this ignition, a part of the gas ejected from the flame holes of the gas burner is blown inward from the tip of the cover plate, so that the ignition is efficiently performed by the spark.

Since the cover plate covers the upper part and the front part of the spark plug, the spillage does not reach the spark plug. However, if it should happen, the cover plate can be removed and wiped clean.

[0013]

1 is a gas burner body, 2 is a flame hole, 3 is a burner cap, 5 is a spark plug, 6 is a spark, 7 is an igniter, 8 is a lead wire, and 9 is a power wire.

Reference numeral 10 denotes a metal cover plate having a tip end side 11 curved and a mounting portion 12 with a screw hole 12a formed at the bottom thereof. As shown in FIG. It is attached to the burner body 1 by a screw 13 so as to face the flame hole 2 (gas jet flow) and to cover the front (outer side) of the spark plug 5.

In the above embodiment, when the ignition gas cock is operated, the gas plug is opened, the igniter 7 is turned on at the same time, a high voltage is applied to the ignition plug 5, and the inside of the tip side 11 of the cover plate 10 is connected. Spark 6 flies in the meantime.
On the other hand, a part of the gas ejected from the flame hole 2 is wound inward along the curved surface of the tip end side 11 of the cover plate 10 to form a gas vortex inside this. The spark 6 ignites this swirling gas, and this fire is transferred to the entire flame hole 2 of the burner body 1 to form a flame in the entire flame hole 2. The boiled spill covers the upper side and the front side of the ignition plug 5 with the cover plate 10, so that the spilled substance first flows down to the outside of the curved upper end side 11 of the cover plate 5 and further propagates to the outside of the cover plate 10 to make juice. Pour into a saucer. Should spillage adhere or become dirty, loosen the screws 13 and remove the cover plate 10, and wipe it off for cleaning.

[0016]

The effects of the present invention are as follows.

A. Since the cover plate covers the upper side and the front side of the spark plug, there is no concern that spillage will adhere to the spark plug.

B. In order to blow a part of the gas ejected from the flame hole into the tip of the cover plate and fly the spark here,
Ignition can be reliably performed, and since the flame holes for ignition are not specially processed unlike the conventional case, the temperature or shape of the combustion flame does not become uneven.

C. By optimizing the size of the cover plate, it is possible to prevent the spillage from flowing down or entering this fixed portion in addition to the spark plug. Therefore, there is no fear of corrosion and the durability is improved.

D. If the spark plug becomes dirty, you can easily remove it by removing the cover plate.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of an ignition device according to the present invention.

FIG. 2 is an explanatory view of a portion of a spark plug and a cover plate.

FIG. 3 is an explanatory diagram of a conventional ignition device.

FIG. 4 is an explanatory view of a conventional spark plug portion.

[Explanation of symbols] 1 burner body 2 flame hole 3 burner cap 5 spark plug 6 spark 7 igniter 8 lead wire 9 power line 10 cover plate 11 tip side 12 mounting part 12a screw hole 13 screw

Claims (1)

[Claims] 1. A heat-resistant cover plate whose upper end is bent so as to face a gas flow ejected from a flame hole and which covers the ignition plug in the front and at the upper side, and the cover plate is provided with a gas burner by any means. A direct ignition device for a gas stove that is detachably attached to the main body.