JPH01167531A - High frequency heating device - Google Patents

Abstract

PURPOSE:To make it possible to heat uniformly even an object which is to be heated and placed in a tall vessel by providing an electric power supply port provided with a high frequency oscillator on the bottom face of a heating chamber and providing a base to mount the object to be heated. CONSTITUTION:The center of a rotating pan 8 is displaced to one side by a specified dimension from the center of the heating bottom face 10 of a heating chamber, and the space that is not covered by the rotating pan 8 is provided with an electric power supply port 11 and cover 12 for the electric power supply port. Accordingly by placing an object 6 to be heated which is placed in a tall vessel 9 on the electric power supply port cover 12 which also serves as a base for placing objects to be heated high frequency is directly supplied from the lower section and the object 6 is heated so that the object is heated uniform ly and efficiently without uneven heating in the up-and-down direction. Further, an object to be heated which is low in height and flat, for example, a food on a flat dish, etc., is heated by placing it on the rotating pan 8 and it can be heated uniformly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high frequency heating device such as a microwave oven.

[Conventional technology]

Figure 4 is a cross-sectional view of the main parts of a conventional high-frequency heating device.

In the figure, (1) is the heating chamber, and the high frequency oscillator (2)
is coupled to the heating chamber top surface (4) by a waveguide (3).

(5) is a power supply port on the top surface of the heating chamber, from which high frequency waves are supplied into the heating chamber (1) and the object to be heated (6) is heated. In addition, a rotary plate (8) for placing an object to be heated (6) driven by a motor (7) is provided at the inner bottom of the heating chamber 11+.
The object to be heated (6) placed on the rotating plate (8) is heated evenly and uniformly by rotating.

[Problem that the invention seeks to solve]

In the conventional high frequency heating device as described above.

Although it is possible to heat evenly and evenly a short flat object to be heated, such as food on a plate, it is possible to heat the object evenly and evenly when it is placed in a tall container (9) as shown in Fig. 4. In heating object (6), there was a problem of uneven heating in the upper and lower parts, in that the upper part was heated quickly and became hot, whereas the lower part was heated slowly and became lukewarm.

This invention was made to solve all of the above-mentioned problems, and its purpose is to provide a high-frequency heating device that can uniformly heat an object placed in a tall container without uneven heating from top to bottom. shall be.

[Means for Solving the Problems] The high-frequency heating device according to the present invention is provided with a high-frequency power feed port on the bottom of the heating chamber and a heated object mounting table on the power feed port.

[Effect]

In this invention, the object to be heated is heated by being directly supplied with high frequency waves from the lower part, so that the object is heated uniformly and efficiently without uneven heating from above and below.

〔Example〕

An embodiment of the present invention will be described below based on the drawings. In Fig. 1, (υ is a heating chamber, and a high frequency excavator (2) is connected to the bottom of the heating chamber by a waveguide (3).α
υ is the power supply port on the bottom of the heating chamber.
As shown in the figure, a rectangular rotating plate (8) is provided on which to place objects to be heated, such as food, on a plate. The center C of the rotating plate (8) is offset to one side by the dimension A from the center B of the bottom surface of the heating chamber.

A space is created that is not covered by the rotary plate (8), and a power feeder αυ and a power feeder cover 02 are provided in this space S.

Therefore, the object to be heated (6) in the tall container (9)
By placing it on the power supply port cover (121) which also serves as a heated object mounting plate, high frequency is directly supplied from the bottom.
Because it is heated, it is heated evenly and efficiently with no uneven heating above and below. Particularly remarkable effects can be obtained in sake cans, etc. ′-! Ta. A short, flat object to be heated, such as food on a plate, is placed on the rotating plate (8) and heated evenly and uniformly.

FIG. 3 shows another embodiment of the present invention, in which a food tray (13 is a fixed type) is used to place a flat object to be heated.

Instead, a rotating fan 04t for high-frequency stirring is installed on the top of the heating chamber (1) to ensure that the objects to be heated are heated evenly and uniformly.

〔Effect of the invention〕

As described above, according to the present invention, by providing a high-frequency power supply port on the bottom of the heating chamber and providing a table for placing the object to be heated on the power supply port, high-frequency waves are directly supplied from the bottom of the object to be heated. This has the effect that even objects to be heated in a tall container can be heated uniformly and efficiently without uneven heating in the upper and lower portions.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention. FIG. 2 is a view seen from the direction of the arrow layer in FIG. 1. FIG. 3 is a sectional view of a main part showing another embodiment of the invention. FIG. 4 is a sectional view of a main part of a conventional high-frequency heating device. In the figure, (1) is a heating chamber and a +21Fi high frequency oscillator. αQ is the bottom of the heating chamber, (IIIH power supply port, +81.Q
21. (This is a 131U heated object mounting table. The same reference numerals in Figure 9 indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] (1) A heating warehouse having a power supply port, comprising a high frequency oscillator that is high-frequency coupled to the power supply port, the power supply port being provided on the bottom of the heating warehouse, and a table for placing objects to be heated on the power supply port. A high-frequency heating device characterized by being provided with. (2) The high-frequency heating device according to claim 1, wherein the heated object mounting table also serves as a cover for the power supply port. (3) Claims 1 or 2, characterized in that the heated object mounting table is composed of a rotating plate provided on the bottom of the heating chamber and a fixed plate provided on the power supply port. High frequency heating device. (4) Claims 1 or 2, characterized in that the heated object mounting table is composed of a fixed plate provided on the bottom of the heating chamber and another fixed plate provided on the power supply port.
The high-frequency heating device described in Section 1. (5) Claims 1 to 4, characterized in that the heating chamber has a rectangular bottom and a power supply port is provided at one corner thereof.
The high-frequency heating device according to any one of paragraphs. (6) Any one of claims 1 to 4, characterized in that the bottom surface of the heating chamber is square, a power supply port is provided at one corner thereof, and a cooking plate is provided on the bottom surface of the heating chamber. The high frequency heating device described in the above.