JPS6015219B2 - High frequency heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a high-frequency heating device with an electric heating device.

In recent years, high-frequency heating devices have been introduced to the so-called grill range, which uses a built-in electric heater to dielectrically heat the inside of the object to be heated using high-frequency waves, and then performs irradiation heating with the electric heater to brown the surface. are now widely available on the market.

Furthermore, metal mesh has traditionally been used when cooking meat, fish, etc. in order to prevent the food from becoming dirty due to sweat from the food.

This metal mesh uses several shelves that would be installed on the side wall of the heating chamber in a conventional oven with only electric heating equipment.
The height could be freely selected according to the object to be heated.
However, when high frequency and electric heating are used together, as in the grill oven described above, a new problem arises. That is, in high-frequency heating devices, significant heating unevenness occurs due to standing waves generated within the heating chamber. In order to solve this problem, many methods have been used in the past to rotate the counterfeit table for heated objects. However, continuous heating with the race net placed on a shelf installed on the side wall of the heating chamber is not practical because the heated object cannot rotate during dielectric heating, resulting in significant heating unevenness. Ta.

Therefore, in order to solve the above-mentioned problem in the conventional high-frequency heating device with an electric heating device, it was necessary to provide several types of bran nets with different leg heights.

The conventional example will be explained in detail below with reference to FIGS. 1, 2, and 3.

The high frequency waves irradiated from the magnetron 1 heat the inside of the object to be heated 2, and then the electric heater 3 is energized, and the surface of the object to be heated 2 is browned by the cervical radiation heating of this electric heater. Generally, it is said that the radiant energy from an electric heater is inversely proportional to the distance from the heat source.In order to cook all the items to be heated further away, a metal grill with high legs is used depending on the height of the items to be heated. 4 and metal mesh 5 with low legs are used. Reference numeral 6 denotes a stand for mounting the object to be heated, which is rotatable by a rotary support stand 7 and an electric motor 8 in order to prevent uneven heating during high-frequency heating.

Further, the heated object mounting stand is made of a dielectric material in order to avoid an electric discharge accident with the metal grills 4 and 5.

According to this configuration, in actual cooking, as mentioned above, it is necessary to use different grills depending on the food to be cooked, which makes it inconvenient to use. In addition, the storage space for unused race nets becomes quite large, which is a big problem in small kitchens. In view of this situation, the present invention provides a grill for a high-frequency heating device with an electric heating device that is simple, inexpensive, and compact, and will be described below with reference to FIGS. 4 and 5.

A bent part is provided in a part of the leg of the gridiron 4, and this bent part is shaped to fit into a groove of a protrusion provided in the height-adjustable odor material 9.

The legs of the competition net 4 are made of round metal bars and therefore have elasticity, and when the user grasps the legs of the bran silk 4, the bent part of the legs can be adjusted to the height adjustment device. This allows it to be moved and fitted into another protrusion groove on the material.

According to this configuration, only one Akatsuki net is required for any kind of food to be cooked, and since it can be used on a rotary table as before, there is no uneven heating.

In addition, it goes without saying that when stored, the space required is small since there is only one grill, but when cleaning the grill, the user can also completely remove the grill and the height adjustment material. , very easy to clean.

In addition, if the height-adjustable odor material is made of the material of the display body, even if the heated object calendar is made of metal, there is no need for electrical discharge accidents to occur between the two, and it is inexpensive and thermally efficient. Not only is it possible to realize a good metal heated object teaching table, but even if the user accidentally places the pseudo-silk directly on the bottom wall of the heating chamber and it does not work, there will be no electric discharge accident. It is something.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional high-frequency heating device that uses a gridiron with high legs, Figure 2 is a cross-sectional view of a conventional high-frequency heating device that uses a grill net with low legs, and Figure 3 is a cross-sectional view of a conventional high-frequency heating device that uses a grill net with low legs. FIG. 4 is a perspective view of a grill used in the heating device, FIG. 4 is a perspective view of a high-frequency heating device showing an embodiment of the present invention, and FIG. 5 is a sectional view of the essential parts thereof. 4... Akatsuki Kinu, 6... Heated object Kyododai, 9...
...Height adjustment material. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. In a heating chamber, a high frequency generation means for performing dielectric heating, an electric heating device for performing radiation heating, a heating object mounting table rotation drive means for rotating the object to be heated, and a means for rotating the object to be heated. 1. A high-frequency heating device comprising: a metal gridiron for mounting; and a height adjustment member made of a dielectric material is detachably provided on the metal gridiron.