JPS60240923A - Electric cooker - Google Patents

Abstract

PURPOSE:To prevent uneven cooking of food-stuff to be cooked and to enable the food-stuff to be evenly cooked and thoroughly heated to the interior, by a method wherein an electric cooker is formed with electric heaters which heat the food-stuff to be cooked from the above, and a flat far infrared radiating body which is located between the electric heaters and the food-stuff to be cooked. CONSTITUTION:Plural rodform heaters 7, such as sheath heaters, quartz heaters, which are suspended from the under-surface of a heat shield plate 6, are disposed at equal intervals and in parallel to the lateral direction of a body. A flat far infrared radiating body 8 is located under the electric heaters 7 and spaced slightly away therefrom to cover an opening 4. Reflective bodies 9, 9... respectively located in the vicinity of the under-surface of the infrared radiating bodies 8, are plural reflective bodies which are formed in a circle in cross section, for example, steel wires, and are suspended in a lattice state in which they laterally and longitudinally cross with each other. The surface of each of the reflecting bodies 9 is mirror-finished by chrome-plating to constitute it so that a radiant heat from the far infrared radiating bodies 8 can be reflected thereby.

Description

[Detailed description of the invention] (a) Industrial application field The present invention is! Regarding roasting type electric cookers such as the open air cooker.

←) Conventional technology For example, an electric cooker such as an electric open type that heats and cooks food such as bread, meat, and fish is stored inside the cooking chamber, as disclosed in Japanese Utility Model Publication No. 54-15819. Heat sources are provided at the top and bottom to heat the food from the top and bottom surfaces.

The reason why heating sources are provided in the upper and lower parts of the refrigerator is to raise the temperature of the interior of the refrigerator to a high temperature in a short time and to reduce the occurrence of uneven cooking of the food to be cooked.

However, as mentioned above, the types of food to be cooked vary in size, such as bread of different heights, meat and fish of different thicknesses and lengths, and in particular, the type of food is Considering these points, it is desirable that the heater be as wide as possible. However, in reality, making the heater wider is not practical, it would be expensive, it would require a new heater to be molded into a special shape, and it would also have the disadvantage of causing the temperature of the case that makes up the inside of the refrigerator to become excessively high. Ta.

Furthermore, when baking tall mountain-shaped breads, etc., the top surface is extremely charred and the sides are hardly charred, resulting in so-called uneven baking, and the inside is only slightly charred to the extent that the surface is charred. It had not been heated to the point where it had a fishy smell and taste.

Incidentally, far-infrared radiating elements have recently begun to attract attention as a new heating source. This is because infrared rays in electromagnetic waves include near infrared rays (0.76 μm to 1.5 μm) and mid-infrared rays (0.76 μm to 1.5 μm).
1.5 μm to 5.6 μm) and far infrared rays (5.6 μm to 5
Far infrared rays (0 μm) and ultrafast infrared rays (50 μm to 1000 μm) are classified into ultrafast infrared rays (50 μm to 1000 μm), but the far infrared rays mentioned above generally vary depending on the type of object being heated (heated), but the far infrared rays can sufficiently reach the inside of the object. In addition, the surface has all the properties to prevent it from becoming too hot than necessary. For example, in a sheathed heater, the far-infrared radiating element is typically made by coating the outer wall of a metal pipe with a far-infrared ray-radiating material (zirconia-based ceramic material), but general cloud heating The source itself is being processed. However, the radiation range of far infrared rays is limited, making it unsuitable for 1', 1 electric cookers such as electric ovens.

(1) Purpose of the Invention The purpose of the present invention is to prevent uneven cooking of food and to heat the food sufficiently to the inside.

B) Structure of the Invention The present invention comprises an electric heater that heats the food to be cooked from above, and a far-infrared ray emitter in the form of a large plate installed between the electric heater and the food to be cooked.

(E) Embodiment An embodiment of the present invention will first be described with reference to FIGS. 1 and 2. (1) is a cylindrical outer case with an open front;
(2) is an FC cylindrical inner case which is fixed with a predetermined space (3) in the outer case and has an opening at the front, and has a wide opening (4) in the center of the upper surface and is used to hold the food to be cooked. (6) is located in the upper space of each of the outer case (1) and the inner case (2), and is located above the opening (4). It is a fixed heat shield plate that also serves as a reflection, and its upper surface is slightly in front of the upper surface of the outer case (1).+7)+7)+7)+7) is the heat shield plate (6)
A plurality of rod-shaped electric heaters, such as sheathed heaters or quartz tube heaters, are suspended below the main body, and are arranged at equal intervals and parallel to the lateral direction of the main body. (8) is the electric heater (7) (71 (7) (7
) is provided slightly in front of the lower part of the plate-shaped far-infrared radiator (9) to cover the opening (4); For example, a plurality of reflectors with circular cross sections, such as steel wires, are suspended in a cross-sectional lattice pattern. This reflector (91 (91
. . . has an outer surface finished with a mirror finish, for example, by chrome plating, and is configured to reflect the radiant heat from the far-infrared radiator (8). 01) is a door that can be opened and closed to cover the front opening of the cooking compartment (5), and (2) is a heater installed at the bottom of the cooking compartment (5). It is a saucer disposed between the reflector (91 (91...) and the heating heater αα.

Next, we will discuss the usage conditions. As shown in FIG.
Electrify α. Then, the radiant heat of the heating heater 00) heats the lower part of the bread (K), and the electric heater (7) (7
j (71 (7) heats the far-infrared radiator (8). The heated far-infrared radiator (8) emits a wavelength (5.6 μm to 50 μm) at which the food to be cooked most easily absorbs energy. The bread (K) is heated, but the radiant heat at this time hits the reflectors (9), (9), etc. as shown in Figure 2 and is reflected in various directions, and is further reflected in the inner case (2). Heat the side of the bread (K) against the inner wall of the pan.

The aforementioned far-infrared radiator (8) is an electric heater (7) (7
1 (7) (7) Prevents high-temperature radiant heat from directly hitting the bread (i) and lowers the temperature to a certain extent before radiating it.

For this reason, far infrared rays heat the inside of the bread (K),
Moreover, the sides are also heated up.

FIG. 6 shows another embodiment of the reflector, in which the reflector 19
)(9)... has a circular cross section at the top,
In this case, the radiant heat from the far-infrared radiator (8) is reflected to each part in the cooking chamber (5) as shown in Figure 4, and the reflected waves that are reflected upward from the lower part of the cooking chamber are reflected. It hits the flat surface of the lower surface of the body (91 (9+...) and is further reflected towards the bread (jL) side.

(f) Effects of the Invention As described above, the present invention provides a method for storing food to be cooked in a cooking chamber formed by a case of a sieve plate, and disposing the food at least above the food (7') for heating and cooking with an electric heater. Since the far-infrared radiator formed in a flat plate is installed between the electric heater and the food to be cooked, the radiant heat of the electric heater heats the far-infrared radiator, and the radiator emits far-infrared rays. The far-infrared rays radiator is formed into a flat plate shape, allowing the far-infrared rays to be heated evenly to the inside as it sufficiently heats the surface as well as the inside of the food. The radiation area for objects is expanded.In addition, near the bottom surface of the far-infrared radiator,
Since the reflector is provided with a reflector whose outer surface is subjected to reflection treatment and has a circular cross section, or a circular upper cross section, or one or more reflectors arranged in parallel with a triangular cross section with an apex at the upper part, The radiation of the far-infrared radiator is reflected by the reflector in various directions, and the MB is applied to the entire surface of the object to be cooked, effectively heating the object. The reflector can also be used as a guard to prevent damage to the far-infrared radiator.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of the electric cooking appliance of the present invention, Fig. 2 is a side sectional view thereof, Fig. 6 is a perspective view of a far-infrared radiator and a reflector, and Fig. 4 is another embodiment of the reflector. FIG. 3 is a side sectional view of the main body. (1)...Outer case, (2)...Inner case, (5)...Gooking cabinet, +7+(7)(7)
[7)... Electric heater, (8)...
Far-infrared radiator, (91(9)...,...Reflector. Applicant: Sanyo Electric Co., Ltd. and 1 other representative: Patent attorney: Yasuo Sano Figure 1 Figure 2 Figure 3 Figure 4

Claims (2)

[Claims] (1) It is formed of a cylindrical case, and the food to be cooked is housed in the large cooking cabinet, which is provided at least above the food to be cooked!
1. An electric cooking device for heating and cooking using an air heater, characterized in that a flat-shaped far-infrared radiator is installed between the electric heater and the object to be cooked. (2) Close to the lower surface of the far-infrared radiator, the outer surface of the far-infrared radiator is subjected to a reflective treatment and has a circular cross section, or an upper cross section that is circular, or one or more of a large triangular cross section with an apex at the top. A patented cooking device characterized by having a reflector with books arranged side by side.