JPH04300511A - gas cooker - Google Patents

Abstract

PURPOSE:To offer the constitution of the lower grill burner in which uniform thermal distribution width is wide. CONSTITUTION:On the upstream of the lower grill burner 5, and its lower part, a fan 10, and a ventilation hole 12 and a hot air diffusion part 22 which is adjacent to this ventilation hole 12 and surrounds it are provided, respectively. According to this constitution, a strong flow velocity is obtained by a synergetic effect of a fire speed and a ventilation speed, negative pressure is generated in the vicinity of the inside peripheral wall of the hot air diffusion part, hot air flows along the inside peripheral wall, and a uniform thermal distribution in which the upper and lower, and the left and right width is wide is obtained.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas firing chamber for a domestic gas cooker.

0002

[Prior Art] Conventionally, this type of gas cooker (double-sided gas grill) has an upper grill burner at the top of the baking chamber, a grill grate near the center, lower grill burners near the bottom on both sides of the food to be cooked, and a grill burner at the bottom. It consists of a saucepan that catches the dripping juices from cooking. However, in this conventional structure, in order to equalize the heat distribution on the lower surface of the food to be cooked, air must be blown from directly above the lower burners on both sides, making it complicated, difficult to manufacture, and expensive. Furthermore, since the above-mentioned lower grill burners are located on both sides of the inside of the baking chamber, there are also problems such as difficulty in cleaning them.

A conventional example will be explained below with reference to FIG. As shown in FIG. 5, an upper grill burner 2 is provided in the upper part of the baking chamber 1, a grill grate 3 is provided near the center, and lower grill burners 5, 5' are provided on both sides of the lower part of the food to be cooked 4. A soup saucer 6 is placed at the bottom to receive the cooking juice from the food 4. The flame 7 burned by the lower grill burners 5, 5' and the hot air from the upper grill burner 2 heat the food to be cooked 4, and then are discharged to the outside of the refrigerator from the exhaust hole 8.

0004

However, in this configuration, in order to obtain uniform heat distribution on the lower surface of the food to be cooked 4, air from the fan motor 10 is blown to the upper part 9 of the lower grill burners 5, 5'. However, once the flame enters the firing chamber 1, the flame is suppressed downward because air is blown only from above, so the flame heat distribution range is not uniform. It gets narrower. In order to achieve uniform heat distribution over the entire lower surface of the object to be cooked, it was necessary to provide burner flame holes 5 and 5' on both sides of the lower side of the object to be cooked 4. Therefore, the burner was expensive to manufacture and difficult to clean after use.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a gas cooker which can uniformly distribute heat over the entire lower surface of the object to be cooked by simply providing a lower grill burner on only one side of the inner wall of the baking chamber 1.

[0006]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention includes a blow hole for blowing hot air from a lower grill burner on one side of the inner wall of the baking chamber, and adjacent to the baking chamber,
A blower fan motor and a blower duct outer frame having a lower grille burner are provided, and a hot air diffusion section is provided to surround the periphery of the blower hole facing the lower grille burner.

[0007]

[Function] With the above-described configuration, the present invention allows air to be blown by the fan motor provided upstream of the lower grill burner to the rectifying plate 1.
8, the air is divided into air blowing to the combustion chamber 14 and air blowing for cooling the juice tray 6. After passing through the baffle plate 18, air is blown into the combustion chamber, and then passes through both the passages consisting of the lower grill burner 5 and the outer frame 16, and the passage consisting of the middle partition plate 20 and the lower grill burner 5. It reaches 7. Then, when the hot air that has passed through the ventilation hole 12 provided in a part of the inner wall of the firing chamber 1 passes through the hot air diffusion section 22 that surrounds the ventilation hole 12 with almost no gaps, the flame speed and the airflow speed are synergized, making it strong. Due to the negative pressure phenomenon generated near the inner circumferential wall of the hot air diffusion section 22 when the wind velocity is obtained, the hot air is diffused without being converged, and a uniform heat distribution 23 can be obtained over a wide width vertically and horizontally.

[0008] Furthermore, with the above-mentioned configuration, the lower grill burner only needs to be installed on one side of the baking chamber, making it easy to maintain.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the gas cooker of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the baking chamber 1 is provided with a grill door 11 that can be opened and closed at the front, an exhaust hole 8 at the upper rear part, and an upper burner 2 at the upper part. Further, below there are a grill 3 on which the food to be cooked 4 is placed and a soup saucer 6. A blow hole 12 from which the flame 7 of the lower grill burner 5 burned in the combustion chamber 14 is blown out is provided in a part of the rear wall surface of the baking chamber 1 at a height between the grill grate 3 and the soup saucer 6, and the blow hole 12. A hot air diffusion section 22 is provided which is attached to the wall of the firing chamber 1 so as to surround the periphery of the firing chamber 12. Further, cooling holes 13 for cooling the juice receiving tray 6 are provided below the ventilation holes 12. Description will be given below based on FIGS. 1, 2, 3, 4, and 5.

The air blown by the fan motor 10 passes through the fan duct 15 and passes through the air duct outer frame 16 (
It passes through an opening 17 provided at the top (hereinafter referred to as an outer frame) and reaches a rectifying plate 18 having an appropriate opening area at both ends. The inside of the outer frame 16 is constituted by a partition plate 20 that holds the baffle plate 16 and divides the combustion chamber 14 and the cooling chamber 19. The air that has reached the current plate is divided into the combustion chamber 14 and the cooling chamber 19 by the above-described configuration. One piece of divided air is directed to the lower grill burner 5 which is held by the outer frame 16 so as to be located approximately in the center of the combustion chamber 14.
and the lower grill burner 5 to reach the ventilation hole 12. Another branched air passes through the passage formed between the middle partition plate 20 and the lower grill burner 5, and
Leading to 2. The air discharged from the air vents 12 interacts with the flame 7 of the lower grill burner 5, increases the flow velocity, and reaches the hot air diffusion section 22. Since the hot air diffusion section 22 is surrounded by almost no gaps, the hot air generates a negative pressure phenomenon on the inner circumferential wall of the hot air diffusion section 22, flows along it, and then flows into the inside of the firing chamber 1.
The hot air is diffused vertically and horizontally without converging, and a wide and uniform heat distribution 23 can be obtained. Another cooling room 1
After the air 9 leaves the cooling hole 13, it cools the juice tray 6. The combustion exhaust gas from the lower grill burner 5 and the combustion exhaust gas from the upper grill burner 2 are discharged to the outside of the oven through an exhaust hole 8 provided at the upper rear part of the oven 1.

0012

[Effects of the Invention] As described above, according to the gas cooker of the present invention, the following effects can be obtained. (1) Heat distribution to the lower surface of the cooking area is achieved by a strong flow velocity due to the hot air diffusion section provided around the ventilation holes of the baking chamber and the synergistic effect of the flame speed and air speed, and the hot air flows along the inner circumferential wall of the hot air diffusion section. , the food will be evenly distributed vertically, horizontally, and horizontally relative to the bottom surface of the food to be cooked. (2) Uniform heat distribution on the lower surface of the food to be cooked can be achieved by installing a lower grill burner on only one surface, making maintenance extremely easy.

[Brief explanation of drawings]

[Fig. 1] (a) Overall cross-sectional view of a gas cooker according to an embodiment of the present invention; (b) Heat distribution diagram as seen from the top surface of the same kiln as above.

[Fig. 2] A perspective view of the back wall of the main part of the firing chamber of the gas cooker in one embodiment of the present invention.

FIG. 3 is a rear perspective view of a gas cooker according to an embodiment of the present invention.

[Fig. 4] External view of each part of the ventilation section of the gas cooker in one embodiment of the present invention.

[Figure 5] Overall sectional view of a conventional gas cooker

[Explanation of symbols]

1 Baking warehouse 5 Lower grill burner 10 Fan motor 11 Door 12 Ventilation hole 14　Firing chamber 16　Blower duct outer frame 22 Hot air diffusion section

Claims (1)

[Claims] Claim 1: A box-shaped baking chamber with a door that can be opened and closed on the front for storing food to be cooked; a combustion chamber; a lower grill burner provided in the combustion chamber; and a combustion chamber for supplying air to the combustion chamber. a fan motor for sending, a blow hole provided in a part of the wall surface of the baking chamber for blowing hot air obtained by the grill burner in the combustion chamber into the baking chamber, and surroundings of the blow hole. A gas cooker consisting of a hot air diffusion section.