JPS5820826Y2 - electric oven - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an electric oven using a hot air circulator as a heating source.

If the electric capacity is small, such as a household power source, it is unavoidable to make the heating chamber of the electric oven small.

When cooking is performed by blowing hot air into such a small heating chamber, the distance between the food and the hot air blowing port becomes short.

In such a case, heating tends to be stronger the closer the hot air blower is to the hot air outlet, which has the disadvantage that it tends to cause significant uneven baking.

Therefore, the present invention provides a rotating mold supported by a single rotating shaft inside the heating chamber, eliminates the uneven baking between near and far away from the hot air blowing port, and blows hot air into the upper and lower spaces of the rotating mold. In this manner, it is an object of the present invention to provide an electric oven that reduces uneven baking in the vertical direction, eliminates uneven baking over the entire object to be heated, and has good thermal efficiency.

An embodiment of the electric oven of the present invention will be described with reference to the drawings.

In FIG. 1, a hot air circulator 1 blows hot air into a heating chamber 2, and is composed of a heater 3, a circulation fan 4, a drive section 5 for the circulation fan 4, and a fan cover 6.

7 is a rotary mold on which an object to be heated 8 such as food is placed, and 9 is a drive section of the rotary mold 7.

The rotary mold 7 is supported within the heating chamber 2 by one rotary shaft 9a.

10 is a door provided at the front of the heating chamber 2.

Reference numeral 11 denotes an upper space of the rotary mold 7, in which the object to be heated 8 is housed.

12 is a lower space of the rotary mold 7. 13 is a heating chamber 2 for returning the hot air blown into the heating chamber 2 to the hot air circulator 1;
This is an air intake opening from a group of small holes provided in the surrounding wall.

FIG. 2 is a sectional view of the main part viewed from the direction of arrows A and B in FIG. 1.

In FIG. 2, 14 indicates a hot air circulator 1 in the heating chamber 2.
This is a hot air inlet that blows hot air from.

This hot air inlet 14 is connected to two sets of small holes provided in the vertical direction of the peripheral wall of the heating chamber 2, both of which face the upper space 11 and the lower space 12, and the hot air is placed on the rotary mold 7. The object to be heated 8 is directly heated, and the lower surface of the rotary mold 7 is also heated.

15 is a high frequency oscillator, and 16 is a waveguide that guides the high frequency energy generated from the high frequency oscillator 15 into the heating chamber 2.

Since the rotary mold 7 rotates and moves the heated e18, it has the effect of reducing uneven baking during high-frequency heating, and also reduces uneven baking between the vicinity of the hot air blowing port 14 and the distant area during hot air heating.

FIG. 3 corresponds to FIG. 2, and the hot air blowing ports 14 are formed from two groups of small and large groups provided on the left and right sides of the peripheral wall of the heating chamber 2, and one set faces the upper space 11 of the rotary mold 7. and the other set faces the lower space 12.

Similar to FIG. 2, the hot air directly heats the object 8 on the rotary mold 7 and also heats the lower surface of the rotary mold 7.

If the amount of hot air blown into the upper space 11 and the amount of hot air blown into the lower space 12 of the rotary mold 7 are appropriately selected depending on the number and arrangement of the small holes forming the hot air blowing port 14, the amount of heated air 8 in contact with the rotary mold 7 can be adjusted. It is possible to reduce uneven burning in the vertical direction including the bottom surface.

Furthermore, as shown in FIGS. 1 to 3, since the rotary mold 7 is supported by one rotary shaft 9a, excess heat is not taken away, and thermal efficiency during hot air heating is good.

Although the high frequency oscillator 15 is shown in FIGS. 2 and 3, it may be omitted if the high frequency heating function is not required.

As described above, according to the present invention, the rotary mold 7 for placing the object to be heated 8 in the heating chamber 2 is supported in the inner space of the heating chamber 2 by one rotary shaft 9a, and the upper space of the rotary mold 7 is 11 and the lower space 12, the hot air circulator 1 blows hot air into the heated air outlet 11 and the lower space 12. Therefore, when heating the object 8 with hot air, there is less uneven baking between the vicinity of the hot air inlet 14 and the far side, and less uneven baking in the vertical direction. It is possible to provide an electric oven with less uneven baking over the entire area and with good thermal efficiency.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the main part of the electric oven of the present invention, and FIG. 2 is a sectional view of the main part as seen from the direction of arrows A and B in FIG. FIG. 3 corresponds to FIG. 2, with only the position of the hot air inlet 14 being changed. 1...Hot air circulator, 2...Heating chamber, 7
... Rotating mold, 11 ... Upper space of rotating mold 7, 12 ... Lower space of rotating mold 7.

Claims (1)

[Scope of utility model registration request] This electric oven includes a rotary mold for placing an object to be heated in the heating chamber, supported in the heating chamber by a single rotating shaft, and a hot air circulator that blows hot air into the upper and lower spaces of the rotary mold.