JPH01281332A - Heat cooking apparatus - Google Patents

Abstract

PURPOSE:To evenly heat foodstuff on both the upper and lower trays from above and under by installing the large end of a truncated conical heat reflecting means to the underside of the upper foodstuff tray which reflects the thermal rays from a third heater to the top of the foodstuff on the lower tray with the small end being open. CONSTITUTION:Since the small end of a thermal reflecting plate 16 is left open, the heat from a mica heater 9 on the floor and a halogen heater 14 on the side wall easily reach into the thermal reflecting plate 16, and the upper tray 10a is heated by hot air which rises by convection. Therefore, the foodstuff 12a on the upper tray is heated from above by either halogen heater 7a or 7b and from under by the upper tray 10a, and the foodstuff 12b on the lower tray is heated from above by the reflected thermal rays from the thermal reflecting plate 16 and from under by the mica heater 9. This way, the foodstuff 12a, 12b can be evenly heated from above and under.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a heating device, especially a heating control F! in which a heater is disposed in a cooking chamber and food is cooked by heat radiation from the heater. ! It is related to vessels.

[Prior art] A heating cooker that heats food by placing a heating heater inside the cooking chamber is generally used as a home oven, and an oven range that combines such an oven with a microwave oven is also becoming popular. are doing.

Fig. 7 is a schematic vertical cross-sectional view for explaining such a conventional heating cooker. In the figure, (1) is the main body of the heating cooker, and (2) is the front door that opens and closes the cooking chamber. can be,
There are q configurations such as side opening, top opening, or bottom opening.

(3) is a cooking room, which is formed as a space surrounded by a ceiling wall (4), a floor (5), side walls (6) on three sides thereof, and the inner wall of the front door (2). In the figure, the side wall (6) is the side wall of the rear part.

(7a) and (7b) are halogen heaters, which are respectively disposed within concave reflectors (8a) and (8b) formed on the ceiling wall (4).

Furthermore, a mica heater (9) is embedded in the floor (5) as a flat heater, and the surface is covered with stainless steel or the like to improve cleaning performance.

(10) is a food placing plate, which is placed on a pedestal (11) having a rotating function near the floor (5).

Place the food (12) on this food placing plate (
10) is heated and cooked while rotating.

[Problems to be Solved by the Invention] Fig. 8 shows an example of a case where food placement plates (10) are installed in two stages, an upper stage and a lower stage, to perform two-stage cooking of food in a conventional heating cooker. It shows. The two-tiered food tray installation is
Three or four legs (13) are provided at the bottom of the upper plate (10a).
) to the - of the lower plate (10b) so as not to displace the edge of the lower plate (10b).
) are being set up.

In such two-stage cooking, the heat rays of the 110-gen heaters (7a) and (7b) on the ceiling wall side sufficiently reach the food (12a) on the upper plate (10a), but the
The food above (12b) has the #1111 (10a) above.
The food (12b) cannot be sufficiently heated from the top because it does not reach enough to block the first line. Also, the floor (5)
Although the heat rays from the mica heater (9) can sufficiently heat the bottom of the food (12b) on the lower plate (10b),
Because the heat is absorbed by the food (12b), the upper plate (
The bottom of the food (12a) in 10a) is not sufficiently heated.

Therefore, in the conventional heating cooker, when attempting to perform two-stage cooking, it is not possible to sufficiently heat the bottom part of the food on the L-side (12a) and the bottom part of the food on the lower side (12b). As a result, two-stage cooking could not be performed properly.

Purpose of the Invention The present invention has been made with the aim of solving the above-mentioned problems, and its purpose is to provide a heating system that can sufficiently heat each food item from above and below when performing upper and lower cooking. The purpose is to provide cooking utensils.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the heating cooker according to the present invention has two upper and lower food trays installed in the ceiling and floor of the cooking chamber, respectively. In addition to the first and second heaters, a third heater emits heat rays toward the inside of the cooking chamber.
A heater is installed at a predetermined horizontal position on the inner wall of the cooking chamber.

The heat ray reflecting means has a substantially truncated conical shape and has an outer circumferential surface that can reflect the heat rays from the third heater toward the food placing plate on the lower stage. The present invention is characterized in that a heat ray reflecting means is attached to the outer bottom surface of the upper food storage tray and has an opening at the small iY side end.

[Function] According to the above configuration, when performing two-stage cooking using two upper and lower food trays, the third heater emits heat rays from the inner wall toward the inside of the cooking chamber, so that It is possible to heat the food at the bottom of the food tray, that is, from the top side. Furthermore, by 11 stages of heat ray reflection, the third
The heat rays from the heater can be reflected from two directions toward the upper surface of the lower food tray, that is, the food on the lower side can be heated from above.

Historically, since the large-diameter end of the 014 is formed as an opening at the small-diameter end located below the heat ray reflecting means attached to the outer bottom surface of the tiered food tray, during cooking, the The heat applied to the bottom of the food plate A is not blocked by the heat ray reflecting means.

Therefore, by attaching the heat ray reflecting means to the bottom of the food tray A on the U tier, sufficient heat is applied from below to the bottom of the food tray A, and the food on the upper food tray is heated almost uniformly from the bottom side. It becomes possible.

As a result, while rotating the upper and lower two food trays,
By irradiating the food with heat rays using the heater, the foods on both the upper and lower shelves can be heated and cooked almost uniformly from the -L direction.

[Example] Hereinafter, a preferred example of the cooking device according to the present invention will be described based on the drawings.

A characteristic feature of the present invention is that a third heater is provided at a predetermined position on the side wall of the cooking chamber (3).
and a heat ray reflecting means for reflecting the heat rays of the third heater toward the food below, the heat ray reflecting means having a substantially truncated conical shape with the small diameter side end formed as an opening. be.

FIG. 1 is a schematic longitudinal sectional view of the embodiment, and as shown in the figure,
A halogen heater (14) is installed as a third heater, which is the first characteristic component, on the rear side wall (6) of the cooking chamber (3).
) is installed at a specified horizontal position.

The predetermined horizontal position of this halogen heater (14) is upper ff
It is set at a slightly lower position than the bottom surface of 1l (10a). A concave reflector (15) is provided near the halogen heater (14) to reflect heat rays toward the inside of the cooking chamber (3).

Next, the second characteristic component, the heat ray reflecting means, is -
It is installed at approximately the center of the bottom of the T-1111 (10a), and FIGS. 2(A) and 2(B) show a substantially truncated cone-shaped heat ray reflecting plate (
16) are shown respectively.

This heat ray reflecting plate (16) is connected to the halogen heater (14).
) to reflect the heat rays from the inclined outer circumferential surface (16a), and in this embodiment, 2F4 class reflective surfaces with different inclination angles are formed as the outer circumferential surfaces.

The first reflective surface (16b) is a reflective surface with a gentler inclination with respect to the horizontal direction, and is formed on the small diameter side of the heat ray reflector (16), and the second reflective surface (16b) is a reflective surface with a slightly steeper inclination than the first reflective surface. A reflective surface is formed on the large diameter side.

A flange (16d) used for attaching the heat ray reflector (16) to the bottom of the dish (10a) is formed at the large diameter end, and an opening (16d) is formed at the small diameter end.
16e).

3 and 4 are diagrams showing an example of a method for installing the heat ray reflector (16), with FIG. 3 being a perspective view and FIG. 4 being a schematic vertical sectional view of the installed state. are shown respectively.

An opening (17) is formed in the center of the upper plate (10a), and a flange on the inner peripheral wall of the opening (17) is fitted with a flange (16d) of the heat ray reflector (16). A receiver (17a) is formed. The heat ray reflecting plate (16) is inserted into this opening from above with the small diameter side facing downward, and the flange (16d) is locked to the flange receiver (17a). In order to cover the opening at the large-diameter end of this heat ray reflecting plate (16), fi (18) is installed from above.

In the installed state, as shown in Figure 4, the lid (18)
1: The surface is adjusted to be the same as the food placement surface of one plate (10a).

The material of this reflection plate (16) is preferably a material with high heat ray reflection efficiency, such as 7 stainless steel.

FIG. 5 is a perspective view of the heat ray reflector (16) attached to the upper plate (10a) as seen from the bottom direction, and shows that the heat rays are Air convection is possible inside and outside the reflector plate (16).

In this embodiment, the heat ray reflector (16) is detachably attached as described above, but the large diameter end of the heat ray reflector (16) should be concentric with the outer bottom surface of the upper plate (10a). It is also possible to attach it by

Next, the operation of this embodiment will be explained.

First, when performing I-lower 2-stage cooking, l[ru(10a
) and the lower plate (10b) are installed in the cooking chamber (3). And 15 dishes of each food item 1-. food (12g)
and (12b) are placed.

Next, by setting the two-stage cooking mode by the operator, one of the halogen heaters (7a) and (7b), the mica heater (9), and the halogen heater (14) are energized. and starts dissipating heat.

At this time, the food placement plates (10a) and (10b) are rotated at a constant low speed to prevent the food from being unevenly burnt.

The heat rays from the halogen heater (14) are directed by the arrow (
100), the outer peripheral surface (1
6a) and is irradiated from the top surface of the lower food product (12b).

FIG. 6 is an explanatory diagram showing the reflection action of this heat ray reflecting plate (16), and in the figure, (100a) to (100a)
0d) indicates the heat rays from the halogen heater (14), which is the third heater. Heat 1 (100a)
is reflected at the L stage position of the second reflective surface (16c), and is reflected toward each side region of the lower food product (12b) (not shown). The heat rays (100b) are reflected at the lower position of the second reflective surface (16c) and are reflected to the lower food (12b).
The light is reflected toward an area slightly closer to the center than the outer portion of the . Furthermore, the heat ray (100c) is connected to the first reflective surface (16b
), but since this first reflecting surface (16b) has a gentler inclination angle with respect to the horizontal direction than the second reflecting surface (16c), the heat ray (100c) is reflected on the F side. The light is reflected so that it reaches the center of the L-plane of the food (12b).

That is, when the reflective surface has one type of inclination angle, for example, when it is formed with only the same inclination angle as the second reflective surface (16c) as shown by the broken line in the figure, the heating wire (100c)
) is reflected in the direction of the heat line (200C) shown by the broken line. Therefore, heat rays are not sufficiently reflected to the central portion of the lower food (12b). Therefore, in order to sufficiently reflect the heat rays toward the center of the food using a reflecting surface having one type of inclination angle, the outer circumferential surface (16a) of the heat ray reflecting plate (16) must be formed with a gentler inclination.

However, if the angle of inclination is gentle so that the heat rays can be sufficiently reflected to the center of the lower food (12b), the heat rays cannot be sufficiently reflected to each side region of the food. Become.

In addition, when the m2 anti-reflective surface 16c) shown in the figure is formed with an inclination angle of 1[+1, in order to reflect heat rays to the center of the lower food (12b), the outer circumferential surface (16a) must be moved downward. It is necessary to expand to .

However, if the heat ray reflecting plate (16) is formed to protrude too much in the F direction, a problem arises in that the height of the food placed on the lower plate (10b) is restricted.

In this way, when the outer circumferential surface (16a) is formed with one type of inclination angle, it is possible to reflect the light sufficiently evenly to the area extending from the center 2g area of the lower food (12b) to the outer gR area area. Although it is difficult, as in this example, 2. The first reflective surface (16b) and the second reflective surface (16c) with a tilt angle of PIi class
By forming this, heat rays can be sufficiently reflected from each side region to the central region of the lower food product (12b).

Historically, compared to the case where the heat ray reflecting plate (16) is formed by the outer circumferential surface (16a) with an inclined angle of 1 fIM type, the heat ray reflecting plate (16) protruding from the bottom of the upper plate (10a) in the
), for example, can be shortened by the amount l shown in the figure.
Heat rays can be reflected to the center of the side food (12b).

Therefore, the permissible height range of the food placed on the plate (10b) is expanded.

Historically, in the present invention, since the opening (16e) is formed at the small diameter side end, heat from the mica heater (9) on the floor (5) and heat from the l\\logen heater (14) on the side wall of the cooking chamber are absorbed. However, as shown by the arrow (300) in Fig. 4, the heat ray reflector (
16) Easily transmitted to the inside of the body. That is, as heated air rises due to convection, the surface of the upper plate (10a) where the heat ray reflecting plate (16) is attached is heated.

In this embodiment, the portion fi (18) is heated.

In addition, the halogen heater (14) uses its hot rays to
Since the area near the 7% Rogen heater (14) at the bottom of the upper plate (10a) is also heated, almost the entire surface of the food (12a) on the 1- side is heated from the tonneau j by the simultaneous rotation of the 1- plate (10a). heated.

Therefore, according to this embodiment, the food on the L side (12a) is
It is heated from the side by either the halogen heater (7a) or (7b), it is heated from the bottom by the 7% halogen heater (14), and the heat ray reflector (16) can be attached to the part by heat convection. The food placement surface is also heated. The upper food (12b) is then placed on the first and second reflective surfaces (16b) and (16) of the heat ray reflective plate (16)
c) is heated from above by the reflected heat rays, and from below by the mica heater (9). In this way, both the upper and lower foods are heated and cooked evenly from both directions.

In addition, in this embodiment, the following are provided in the cooking chamber (3):
Halogen heaters (7a) and (7) which are first heaters
b) The energization of the mica heater (9), which is the second heater, and the 10-gen heater (14), which is the third heater, is switched by a control unit (not shown) according to the operator's selection of one mode. be controlled.

The rated power consumption of each of the above heaters is as follows. When the second and third heaters are used at the same time, the power is distributed so that the power is approximately 1.200W. In this embodiment, halogen heaters (7a) and (7b), which are the first heaters, are used.
) are +tOW, respectively.

The mica heater (9), which is the second heater, has a temperature of 250~
300 W, and the third heater, halogen heater (14), is set to have the highest power of 700 W. The reason why this halogen heater (14) has the highest power consumption is that it is used to heat the upper food (12a).
This is because it is necessary to sufficiently heat the food on the lower side and the food on the lower side (12b) from above and from above, respectively.

Furthermore, the heating cooking device according to the present invention is not limited to the two-stage Js cooking method, and it is of course possible to perform heating cooking by installing only the lower plate (10b), and in this case,
The halogen heater (14), which is the third heater, is not energized, and the food is heated and cooked from below by the first heater and the second heater, as in the conventional apparatus. Furthermore, it is also possible to apply the present invention to a cooking device that is an oven with a microwave oven function.

[Effects of the Invention] As explained above, according to the heating cooker according to the present invention, when cooking food in two stages on two upper and lower food trays, By using the heater of TS3 and the heat ray reflecting means having an outer circumferential surface that reflects the heat rays of this heater to the food below, each food under L can be sufficiently heated from above and below, and especially when the heat rays are By forming an opening in the reflection means, the portion of the upper food tray to which the heat ray reflection means is attached can be heated from below, and the upper and lower foods can be heated evenly with nJ performance.

[Brief explanation of the drawing]

Fig. 1 is a schematic longitudinal cross-sectional view of an embodiment of a heating cooker according to the present invention, Fig. 2 (Al and 1B) is a longitudinal cross-sectional view and a bottom view showing an embodiment of a heat ray reflecting means, and Fig. 3 is a heat ray reflecting means. Figure 4 is a perspective view showing how to install the plate, Figure 4 is a schematic vertical sectional view showing how the heat ray reflector is installed, Figure 5 is a perspective view of the upper plate with the heat ray reflector attached, and Figure 6 is a perspective view showing how the plate is attached. The figure is an explanatory diagram of the reflection action of a heat ray reflector, and Figure 7 is a schematic vertical cross-sectional view of a conventional heating cooker.
FIG. 8 is a schematic vertical cross-sectional view for explaining the problems of the conventional heating cooker. In the figure, (1) is the heating cooker body, (2) is the front door, (3) is the cooking chamber, (4) is the ceiling wall, (5) is the floor, (
6) is a side wall; (7a), (7b), and (14) are halogen heaters; (8a), (8b), and (15) are concave reflectors;
(9) is a mica heater, (10) is a food tray, (12)
) is food, (16) is a heat ray reflecting plate, (16b) is a first reflective surface, (16C) is a second reflective surface, and (16e) is an opening. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Attorney L Masuo Oiwa (2 others) Figure 1 Figure 2 Directly taken 4s1sukiniLpoor 4-1-iI-suL? Go 3rd drawing A size + j Buddha's sorrow ζ, Σ show TJ Rameshiro ＼ 21st arm No. 4
Figure 5 Ta ≦ 5
Akashime Figure 6 converges! ! ! , Cooking utensils 4. Diagram 7. Diagram 8.

Claims (1)

[Claims] (1) Two upper and lower food trays can be installed in the cooking chamber, and while the food trays are being rotated, the first and second heating plates provided on the ceiling and floor of the cooking chamber, respectively, can be installed. A heating cooker that cooks food using heat rays from a heater, comprising: a third heater installed on the inner wall of the cooking chamber and emitting heat rays toward the inside of the cooking chamber; A generally truncated cone-shaped heat ray reflecting means having an outer circumferential surface capable of reflecting light toward the upper surface of the lower food tray, the large diameter side end being attached to the outer bottom surface of the upper food tray, and the small diameter A heating cooker comprising: a heat ray reflecting means whose side end is an opening.