JPH07102191B2 - Heating cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heating cooker for cooking roasted meat or the like on a heating plate.

[Prior Art] A heating cooker that can be placed on a table or the like to heat and keep meat and vegetables warm is widely used in general households. FIG. 9 shows a conventional example of a so-called electric hot plate which is one of such electric cookers, and is an exploded perspective view of a main part. That is, the guard (10) has the function of placing and fixing the heating plate under normal use, preventing burns to the user during cooking, and insulating the table, and is formed by injection molding of plastic or the like. It The heating plate (1) is an aluminum die-cast product, the sheath heater is insert-molded on the bottom surface, and the heating surface is treated with fluororesin.
Stop burning the cooked food. The lid (3) covers the heating surface of the heating plate (1) during cooking and also serves as a cover when not in use. The guard (10) is provided with a control section (15) equipped with various switches for heating and cooking, and the power cord is wound around a cord reel (not shown) provided under the guard when not in use.

In the above-mentioned configuration, when the sheath heater is energized, the heating plate (1) is heated and maintained at a desired temperature by the control section (15), so that meat, vegetables and the like can be appropriately baked on it.

[Problems to be Solved by the Invention] According to the conventional cooking device described above, the heating plate naturally has a high temperature due to the heating of the sheathed heater, and the radiant heat from the heater and the heating plate covers the lower surface of the heating plate. Since it is directly transmitted to the guard made by the manufacturer and the guard itself may be thermally deformed, it is necessary to structurally secure a sufficient distance in advance between the heating plate and the guard, which increases the height of the entire cooking device. There was a point.

This invention has been made to solve the above problems, by suppressing the heat transfer to the guard of heat and radiant heat from the heating plate while the heat of the heater is effectively transferred to the heating plate, The purpose is to obtain a thin cooker as a whole.

[Means for Solving the Problems] A heating cooker according to the present invention includes a guard, a heating plate detachably provided on the guard, and a sheath provided to face a central portion of a lower surface of the heating plate. A heater, a first reflecting plate that is provided on the guard in a heat insulating manner and covers the lower surface and the peripheral surface of the heating plate, and a sheathed heater fixed on the first reflecting plate with a predetermined gap. And a plurality of heat shield plates that are located below the second reflector plate and that face each other and that are provided between the guard and the first reflector plate. is there.

[Operation] In the heating cooker according to the present invention, the heat generated by the sheathed heater directly heats the heating plate by the radiant heat, and the second reflecting plate reflects the radiant heat to efficiently heat the heating plate. The first reflector reflects radiant heat and effectively heats the entire heating plate. At this time, the radiant heat from the second reflecting plate, which reaches a high temperature due to the heating of the heater, is effectively shielded by the first reflecting plate and the plurality of heat shield plates, and is prevented from being directly transmitted to the guard.

Embodiments of the Invention Embodiments of the present invention will be described below with reference to the drawings. First
In FIG. 8 to FIG. 8, (1) is a heating plate, which is placed on the outer periphery of a reflection plate (7) described later so as to be located above the sheath heater (2), and the bottom of the heating plate (1) and the sheath. A predetermined gap is provided between the heater and the heater.
The central portion of the heating plate facing the sheathed heater (2) is formed thicker than the other portions, and is raised above. (3) is a lid that covers the upper surface of the heating plate (1), and has handles (4) on the left and right. (5) is a support metal fitting that holds the sheathed heater (2) on the upper surface of the second reflection plate (6), and (7) is a first reflection plate, including the lower surface of the second reflection plate (6). It covers the underside of the plate. (8)
(9) is a heat shield plate provided between the first reflection plate (7) and a guard (10) described later, which is located at least opposite to the lower surface of the second reflection plate (6) and has the second reflection plate. It has a shape that is almost the same as or slightly larger than the reflector. (10) is a guard
An intake port (11) is formed at the bottom and covers the lower surfaces of the first reflector (7) and the heating plate (1). The two reflection plates (6) and (7), the heat shield plates (8) and (9), and the guard (10) are respectively a, b, and a in advance, as shown in FIG.
It is arranged so that an appropriate space such as c and d is maintained.
(12) and (13) are ventilation holes provided in the heat shield plates (8) and (9),
The first reflector (7) is formed at a position that does not coincide with the vertical direction and forms an air flow from the intake port (11) of the guard (10) to the lower surface of the first reflector (7). The radiant heat from is not reaching the guard (10) directly.
(14) is a spacer which fixes the first reflection plate (7) and the heat shield plate (8) with screws. As shown in FIG. 3, the spacer (14) has a cylindrical projection (14A), and the spacer (14) is provided between the three claws (8A) provided on the heat shield plate (8) as shown in FIG. ), And as shown in FIG. 4 (b), the three claws (8A) come into contact with the spacer (14) and are attached to the heat shield plate (8). . After that, the first reflection plate (7) and the heat shield plate (8) are fixed with screws via the spacer (14). Further, the two heat shield plates (8) and (9) have holes (8A) provided with claws (9A) in the heat shield plate (8) as shown in FIGS. 2 and 3.
Then, the heat shield plate (9) and the guard (10) are fixed by screws, and the whole is assembled. (1
5) is a controller, which has a pipe (16) having a temperature sensor at its tip as shown in an enlarged view in FIG.
(17) controls the temperature of the heating plate (1) by the controller (1
5) Heat conductor A for transmitting to the controller, (18) heat conductor B for transmitting the heat of the sheath heater (2) to the controller (15), (19) heating plate (1)
Handles on both sides of the, (20) is the first reflector (7)
It is a wall provided on the outer periphery of the inside of the guard (10) and is located between the heating plate (1) and reflects the heat of the sheath heater (2) to the heating plate (1) and is shown in FIG. In this way, when the heating plate (1) is removed and the sheathed heater is used as the heat source for the electric stove, the radiant heat of the sheathed heater is prevented from reaching the guard (10). This wall may be formed higher than the upper end of the guard (10) by h as shown in FIG. Further, the outer circumference of the reflector (7) is made larger than the inner circumference of the guard to prevent dust from falling into the guard.

As described above, when the heating plate (1) is placed on the sheathed heater (2) and the sheathed heater is energized, the heating plate (1) is heated, and it becomes possible to cook meat, vegetables and the like. At this time, the radiant heat from the sheathed heater (2) is reflected on the heating plate by the second reflecting plate (6), and
It is also reflected by the first reflection plate (7) and effectively heats the entire heating plate. On the other hand, by providing a gap of, for example, 5 mm between the first reflection plate (7) and the second reflection plate (6), even if the temperature of the sheathed heater reaches a high temperature of 800 ° C, the first reflection plate The temperature of the plate (7) becomes 400 ° C, and a large temperature rise can be suppressed. The radiant heat is more effectively shielded by the heat shield plates (8) and (9) located opposite to the second reflecting plate, and the radiant heat transmitted to the guard (10) can be suppressed to the minimum.

As described above, according to the present invention, the heat generated by the sheathed heater can be effectively transmitted to the heating plate, and the heat generated by the sheathed heater can be suppressed from being transferred to the guard. Since it is not necessary to secure a large distance between the heater and the guard in advance, it is possible to obtain a heating cooker having a thin shape as a whole.

[Brief description of drawings]

1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged view of a left side main part of FIG. 1, FIG. 3 is an exploded perspective view for explaining the main part of FIG. 1, and FIG. The figure is a top view for explaining the mounting state of the spacer of FIG. 1, FIG. 5 is an enlarged view of the right side main portion of FIG. 1, and FIG. 6 is an enlarged view of the main portion at a position shifted by 90 ° from FIG. FIG. 7 is an exploded perspective view of the embodiment of FIG. 1, FIG. 8 is a perspective view showing a state in which a heating plate is removed and is used as an electric stove, and FIG. 9 is an exploded perspective view showing a conventional heating cooker. . In the figure, (1) is a heating plate, (2) is a sheathed heater, (6) is a second reflection plate, and (7) is a first reflection plate.
(8) and (9) are heat shields, and (10) is a guard. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Nayuki Suwa 1728 Omaeda, Omaeda, Hanazono-cho, Osato-gun, Saitama 1 Mitsubishi Electric Home Equipment Co., Ltd. (56) References 58-46747 (JP, Y2)

Claims (1)

[Claims] 1. A guard, a heating plate removably provided on the guard, a sheath heater provided so as to face a central portion of the lower surface of the heating plate, and a heat insulating member provided on the guard. A first reflection plate covering the lower surface and the peripheral surface of the heating plate, a second reflection plate fixed on the first reflection plate with a predetermined gap and having the sheath heater attached to the upper surface, the guard and the above. A heating cooker comprising: a plurality of heat shield plates provided between the first reflector and the second reflector so as to face each other below the second reflector.