JP3751356B2 - Flame leak prevention stove - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flame leakage prevention type stove that can prevent the hot air generated by a flame of a burner or a flame from leaking outside the five virtues.
[0002]
[Prior art]
The traditional stove uses virtuos with claws so that the flames of the burner and the hot air generated by the flames are naturally released outside the virtues along the bottom of the pan placed on the claws of the virtues. In this case, a part of the released hot air reaches the handle of the pan and heats it to make it difficult to hold the handle.
[0003]
In order to solve this problem, the applicant of the present application previously placed a cylindrical virtuosity of an inner / outer double wall structure surrounding the burner flame on the top plate of the stove body according to Japanese Patent Application No. 7-107403. In addition, an exhaust window was opened on the inner wall of Gotoku, an exhaust passage communicating with the space between the double walls of Gotoku was provided, and an exhaust fan was installed in the exhaust passage to remove the hot air generated by the burner flame. We have proposed a flame leakage prevention stove that can forcibly evacuate through the exhaust window through the exhaust window to prevent flames and hot air from leaking outside the virtues.
[0004]
[Problems to be solved by the invention]
In the above-described flame leakage prevention type stove, heat transfer from the virtues to the top plate occurs through the outer wall of the virtues, and the top plate is heated so that the spilled juice or the like is easily stuck. Moreover, the heat transfer to the top plate becomes a heat loss for heating the pot due to the transmission from the five virtues, which is a problem in improving the heating efficiency.
Furthermore, in the flame leakage prevention type stove, the exhaust fan is exposed to high-temperature hot air, so the heat damage of the exhaust fan becomes a problem.
In view of the above points, an object of the present invention is to provide a stove with a flame leakage prevention type that suppresses heat transfer from the virtues to the top plate and can also prevent heat damage of the exhaust fan.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, in the present invention, a cylindrical virtuos with a double wall structure that surrounds the flame of the burner is placed on the top plate of the stove body, and an exhaust window is opened on the inner peripheral wall of the virtues. In addition, an exhaust passage communicating with the space between the double walls of Gotoku is provided, an exhaust fan is installed in the exhaust passage, and hot air generated by the burner flame is forced through the exhaust window from the space surrounded by the Gotoku. In the flame leakage prevention type stove that sucks and exhausts automatically, one of the lower end of the outer wall of the virtues and the top plate is provided with a plurality of protrusions for bringing the lower end of the outer wall of the virtues into contact with the top plate at a plurality of circumferential positions. It is formed.
[0006]
According to the present invention, the outer wall of the virtues comes into contact with the top plate only at the location where the protrusion is formed, and heat transfer from the virtues to the top plate through the outer peripheral wall is suppressed. Thus, the top plate is prevented from being heated and the boiled juice is less likely to stick, and since the virtues are kept at a high temperature, the heating of the pot by heat transfer from the virtues is promoted and the heating efficiency is improved. Furthermore, the outside air is sucked into the exhaust passage from the gap between the protrusions through the space between the double walls of the five victories by the suction force of the exhaust fan, the exhaust temperature is lowered, and the heat damage of the exhaust fan is prevented.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, reference numeral 1 denotes a stove body, and a virtues 3 are placed on a top plate 2 on the upper surface of the stove body 1.
The top plate 2 includes an outer top plate 20 and an inner top plate 21 that engages with a peripheral edge portion of an opening 20 a formed in the outer top plate 20. Gotoku 3 is formed in a cylindrical shape with an inner and outer double wall structure. The outer peripheral wall 30 of Gotoku 3 is placed on the upper surface of the peripheral edge of the opening 20a of the outer top plate 20, and the inner peripheral wall 31 of Gotoku 3 is It is placed on the upper surface of the plate 21.
[0008]
A bottomed cylindrical combustion casing 4 is provided below the inner top plate 21, and a burner 5 is accommodated in the combustion casing 4. The burner 5 is composed of an internal flame type ring burner having a flame hole 5a on the inner periphery, and the flame F from the burner 5 is surrounded by the virtues 3 through the opening 21a opened at the center of the inner top plate 21. I try to rise into space. The combustion housing 4 has a plurality of vent holes 40 through which secondary air for combustion is introduced into the combustion housing 4.
[0009]
A plurality of exhaust windows 32 are formed in the inner peripheral wall 31 of the five virtues 3 at intervals in the circumferential direction. In addition, the inner top plate 21 has an upper and lower double wall structure, and the upper wall of the inner top plate 21 is connected to a plurality of spaces between the double walls of Gotoku 3 and the space between the double walls of the inner top plate 21. A communication hole 21b is formed, and an exhaust duct 6 is provided to communicate with an exhaust port 6a formed in the back of the top plate 2 in the space between the double walls of the inner top plate 21, and the inner top plate 21 and the exhaust duct 6 are provided. And constitutes an exhaust passage communicating with the space between the double walls of Gotoku 3. An exhaust fan 7 is interposed in the exhaust duct 6. Thus, in a state where the pan P is placed on the Gotoku 3, hot air generated by the flame F of the burner 5 is exhausted from the space surrounded by the Gotoku 3 to the exhaust window 32. Forcibly exhausted through the air. Therefore, hot air does not leak to the outside of Gotoku 3, and the handle PH of the pan P is not heated with hot air.
[0010]
As shown in FIG. 2, a plurality of claw-like projections 33 are formed at intervals in the circumferential direction at the lower end of the outer peripheral wall 30 of the virtues 3, and these projections 33 are formed on the openings 20 a of the outer top plate 20. It is made to contact | abut to the peripheral part upper surface. Thus, the contact area between the outer peripheral wall 30 and the outer top plate 20 of Gotoku 3 is greatly reduced as compared with the case where the lower end of the outer peripheral wall 30 is in contact with the outer top plate 20 over the entire circumference, and is heated by hot air. The heat transfer from the five virtues 3 to the outer top plate 20 through the outer peripheral wall 30 is suppressed. As a result, the heating of the outer top plate 20 is prevented and the simmered juice is less likely to stick, the virtues 3 are kept at a high temperature, the heating of the pot P by heat transfer from the virtues 3 is promoted, and the heating efficiency is improved. To do.
[0011]
Further, the outside air is sucked into the exhaust passage from the gap between the protrusions 33 by the suction force of the exhaust fan 7 through the communication hole 21b, and the exhaust temperature is lowered to prevent the heat damage of the exhaust fan 7. In this case, outside air flows into the space between the double walls of Gotoku 3, but the outside air only flows in a short-circuit manner from the gap between the protrusions 33 to the communication hole 21b. Therefore, cooling of Gotoku 3 by outside air does not occur. The heat transfer from Gotoku 3 to pan P is not impaired.
[0012]
In addition, when the spilling occurs, the spilled juice or the like from the gap between the protrusions 33 may enter the virtues 3, and in this embodiment, the peripheral edge of the opening 20a of the outer top plate 20 is set inside. Inclined upwards to prevent the juice spilled on the outer top plate 20 from entering the virtues 3, and the protrusions 33 are inclined inwardly along the outer peripheral wall 30 of the virtues 3. The intrusion of dripping juice into Gotoku 3 is prevented.
[0013]
As described above, the embodiment in which the protrusion 33 is formed on the lower end of the outer peripheral wall 30 of the virtues 3 has been described, but a plurality of protrusions are formed at intervals in the circumferential direction on the peripheral portion of the opening 20a of the outer top plate 20, You may make it contact | abut the lower end of the outer peripheral wall 30 to this. Moreover, in the said embodiment, although the top plate 2 is made into the 2 division structure of the outer top plate 20 and the inner top plate 21, of course, it is also possible to make it an integral structure.
[Brief description of the drawings]
FIG. 1 is a cutaway side view of an example of a stove according to the present invention. FIG. 2 is a side view of five virtues as viewed from line II-II in FIG.
DESCRIPTION OF SYMBOLS 1 Stove body 2 Top plate 3 Gotoku 30 Outer wall 31 Inner wall 32 Exhaust window 33 Protrusion 5 Burner 6 Exhaust duct 7 Exhaust fan

Claims (1)

On the top plate of the stove body, a cylindrical virtuo with a double wall structure that surrounds the flame of the burner is placed, an exhaust window is opened on the inner peripheral wall of the virtues, and in the space between the double walls of the virtues In a flame leakage prevention type stove that provides an exhaust passage that communicates, an exhaust fan is provided in the exhaust passage, and the hot air generated by the burner flame is forcibly sucked and exhausted from the space surrounded by five virtues through the exhaust window The flame leakage prevention type characterized in that a plurality of protrusions are formed on one of the lower end of the outer wall of the virtues and the top plate to bring the lower end of the outer wall of the virtues into contact with the top plate at a plurality of locations in the circumferential direction. Stove.

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