JPH0468217A - Grill ignition device - Google Patents

Abstract

PURPOSE:To prevent a glass of a spark plug from being cracked even if water is applied over the glass and get always stable igniting performance without any electrical misdischarging by a method wherein a fixing plate forming a stain preventing wall covering a suction side of a grill of the glass at the spark plug is mounted. CONSTITUTION:A glass 7b of a spark plug 7 inserted into a grill cover 2 is covered by a stain preventing wall 11a from a grill suction side to a lower side or up to both upper and lower sides. Accordingly, oily smoke generated from a cooked item 8 is hardly adhered an electrical misdischarging between an electrode 7a or a grill cover 2 and a glass 7b of the spark plug 7 caused by carbonization is eliminated and its durability is improved. Since the spark plug 7 is mounted on the grill cover 2 through a fixing plate 11, so heat transmitted from the grill cover 2 is also reduced and a surface temperature is not increased more than its specified temperature, even if water is splashed over it, the glass is not cracked and any electrical misdischarging can be prevented. In the event that an extreme end of the fixing plate 11 is formed with a sparked part opposite to the spark part 7c of the spark plug 7, an electrical discharging distance between the spark part 7c of the spark plug 7 and the sparked part of the fixing plate 11 is accurately assembled, resulting in that a stable ignition performance can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a grill ignition device for a grill equipped with an infrared burner.

(Prior art) Figures 5 and 6 regarding conventional gas stove with grill
This will be explained using figures. FIGS. 5 and 6 are a side sectional view of a conventional gas stove with a grill, and a front sectional view of its essential parts.

In Fig. 5, the grill section of the gas stove consists of a box-shaped grill chamber 1 with an opening 1a from the center to the front, and a rectangular burner attached to the top of the box-shaped grill chamber 1 with an opening 2a at the front. A grill cover 2 is provided with an exhaust hole 2b at the rear thereof, and a window 2c for mounting the ignition plug on the side thereof, and the above-mentioned burner is mounted via a holding frame 3 having an angular cross section in the opening 2a. As shown in FIG. 6, a burner body 5 equipped with a ceramic infrared burner 4 having countless combustion holes formed therein, and an exhaust pipe 6 attached to the exhaust hole 2b described above,
The above-mentioned spark plug installation consists of a spark plug 7 which is inserted into the window 2c and placed on the grill cover 2, with an electrode 7a bent at a right angle attached to an insulator 7b.

Note that the spar portion 7c at the tip of the electrode 7a of the spark plug 7 described above
is near the combustion surface of the infrared burner 4 and is located near the holding frame 3
It is installed so that the discharge distance is the inner side of the

The operation of the gas stove with grill configured as described above will be explained.

First, a food to be cooked 8 such as fish is placed on a grill 10 placed on a grill plate 9 and inserted into the grill chamber 1. next,
A gas valve (not shown) is opened, a voltage is applied to the electrode 7a of the spark plug 7, a spark discharge is caused between the spark portion 7c and the holding frame 3, and the infrared burner 4 is ignited. The infrared burner 4 becomes red hot and radiates far infrared rays to fry the food 8.

(Problem to be Solved by the Invention) However, in the above configuration, since the insulator 7b of the ignition plug 7 protrudes into the grill cover 2, when it is repeatedly used, oily smoke is generated from the food 8 such as fish. Insulator 7b
There was a problem that the insulators were stuck and carbonized, and the insulation resistance between the electrodes 7a and the contact points between the grill cover 2 and the insulators 7b was lost, causing erroneous discharges and lacking in durability.

Furthermore, when bending the holding frame 3 into an L-shape, variations may occur in the bending width depending on material lots and molds, and the spark portion 7c may vary.
There was also a problem in that the discharge distance between the fuel and the fuel was outside the effective ignition distance, making it impossible to obtain stable ignition performance.

In addition, the surface temperature of the grill cover 2 is approximately 400 to 500 degrees Celsius due to heat conduction from the infrared burner 4, and since the insulator 7b of the ignition plug 7 is directly attached to this, the surface temperature of the insulator 7b is the standard value. At the same time, there was a problem in that when the insulation resistance rose to above and the insulation resistance decreased, it also cracked and caused erroneous discharge when it was rapidly cooled down by splashing water or the like.

The present invention solves the above-mentioned problems; it does not cause erroneous discharge even if the grill is used repeatedly, and it is always stable without cracking and does not cause erroneous discharge even if the insulator of the ignition plug is exposed to water while the grill is in use. To provide a grill ignition device with excellent durability and excellent ignition performance.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a mounting plate that is provided with dirt prevention walls that cover the grille intake side and lower side of the insulator 7b, or the grille intake side and both upper and lower sides. It is placed on the grill cover through the grill cover.

In addition, there is a sparked part facing the sparking part 7a of the ignition plug 7 at the tip, a U-shaped dirt prevention wall surrounding the insulator 7b of the ignition plug 7 from the grille intake side in the middle, and a table-shaped part holding the insulator 7b at the end. The holding part is integrally molded and is mounted on the grill cover 2 via a plate.

(Function) With the above configuration, the insulator 7b of the ignition plug 7 inserted inside the grill cover 2 is covered with a stain-preventing wall from the grill intake side to the bottom or both upper and lower sides, so that the food to be cooked such as fish 8 The oil smoke generated from the spark plug 7 becomes difficult to adhere to, and the erroneous discharge between the contact points between the electrode 7a or the grill cover 2 and the insulator 7b of the ignition plug 7 due to carbonization is eliminated, and durability is improved.

Since the ignition plug 7 is mounted on the grill cover 2 via a plate, the heat transmitted from the grill cover 2 is reduced and the surface temperature does not rise above the standard value.

Therefore, even if it gets wet with water, it will not break, and erroneous discharge can be prevented.

In addition, if a sparking part facing the sparking part of the ignition plug 7 is molded on the tip of the mounting plate, the sparking part 7c of the ignition plug 7 and the sparking part of the mounting plate can be assembled with accurate discharge distance. , stable ignition performance can be obtained.

(Example) Two examples of the present invention will be described with reference to FIGS. 1 to 4.

FIGS. 1 and 2 are a side sectional view and a front sectional view of a main part of a grill part of a gas stove with a grill, showing a first embodiment.

In both figures, the difference between this embodiment and the conventional example shown in FIGS. 5 and 6 is that, as shown in FIG. The stain prevention wall 11a is formed so as to cover the side and bottom sides and is mounted on the grill cover 2 via the plate 11. Since the rest is the same as the conventional example, the same components are given the same reference numerals and their explanations will be omitted. Further, since the operation for adjusting the food to be cooked 8 is also the same as in the conventional example, the explanation thereof will be omitted.

In this embodiment, as shown in FIG.
The air flows from the grille intake side toward the exhaust pipe 6 as shown by arrows A, B, and C, but is blocked by the dirt prevention wall 11a that covers the grille intake side and the lower side of the insulator 7b of the ignition plug 7. The oily smoke generated from the food to be cooked 8 such as fish does not stick to the food.
Erroneous discharge due to carbonization is eliminated, and durability is improved.

In this embodiment, the dirt prevention wall 11a covers only the grill intake side and the lower side of the insulator 7b, but the same effect can be obtained even if it covers the entire circumference of the insulator.

FIG. 3 is a side sectional view of a main part of a grill portion of a gas stove with a grill showing a second embodiment, and FIG. 4 is a perspective view of an igniter thereof.

In FIG. 4, the difference between this embodiment and the first embodiment shown in FIG. The point formed at
2b is formed, and furthermore, the holding portion 12c of the insulator 7b is formed into a trapezoidal shape. Since the rest is the same as the first embodiment, explanations of its configuration and cooking operation will be omitted.

In this embodiment, the insulator 7b of one ignition plug 7 is covered up to the grill intake side and both upper and lower sides, making it more difficult for oily smoke generated from the food 8 such as fish to adhere.

Further, in both the first and second embodiments, the insulator 7 of the spark plug 7
b is installed on the grill cover 2 via the plate 11 or 12, so the heat conduction is lower than when it is placed directly on the grill cover 2, and the surface temperature of the 4-insulator 7b does not rise above the standard value. , it will not break even if it gets wet with water, and erroneous discharge can be prevented.

Moreover, since the ignition plug 7 is attached to the sparking target part 12b and is assembled integrally with the plate 12, stable ignition performance can be obtained with little variation in the discharge distance between the sparking part 7c and the sparking target part 12b.

(Effects of the Invention) As explained above, according to the present invention, the insulator of the ignition plug inserted into the inside of the grill cover is blocked by the dirt-preventing wall and is exposed to oil smoke generated from the fish to be cooked. This eliminates erroneous discharge between contact points between the electrode or grill cover and the insulator due to carbonization, and improves durability.

In addition, since the insulator of the ignition plug is mounted on the grill cover through a plate, there is less heat conduction than when it is mounted directly, the surface temperature does not rise above the standard value, and water etc. This prevents the insulator from cracking and prevents erroneous discharge.

Further, since the ignition plug is mounted after being assembled on a plate, stable ignition performance can be obtained with little variation in the discharge distance between the sparking part and the sparked part.

Therefore, a highly durable and reliable gas stove with grill can be obtained.

[Brief explanation of the drawing]

1 and 2 are a side sectional view and a front sectional view of a main part of a grill part of a gas stove with a grill, which shows a first embodiment of the present invention, and FIG. 3 shows a second embodiment with a grill. FIG. 4 is a perspective view showing the external appearance of the igniter; FIGS. 5 and 6 are side sectional views and main parts of the grill of a conventional gas stove with a grill. FIG. 1...Grill storage, 1a...Opening, 2...
Grill cover, 2a...burner installation opening, 2
b...Exhaust hole, 2c...Ignition plug is installed on the window, 3.
...Holding frame, 4...Infrared burner, 5...Burner body, 6...Exhaust pipe, 7...Ignition plug,
7a...Electrode, 7b...Insulator, 7c...Spark part, 8...To be cooked, 9...Grill plate, 10...Grilling net, 11.12... Installation is on board +
'lla. 12a... Dirt prevention wall, 12b... Spark target part,
12c... Holding part. Patent applicant Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] (1) In a grill that exhausts air from the rear of the appliance body,
In a grill ignition device consisting of a spark plug in which a spark part is installed near the combustion surface of an infrared burner having numerous combustion holes, and an electrode bent at a substantially right angle is attached to an insulator made of an insulator, and a spark target part, A grill ignition device characterized in that a mounting plate is installed that forms a dirt-preventing wall that covers the grill intake side and lower side of the insulator of the above-mentioned ignition plug. (2) The grill ignition device according to claim (1), further comprising a mounting plate formed with a U-shaped dirt prevention wall that covers the grill intake side and both upper and lower sides of the insulator of the ignition plug.