JPH028620A - High frequency heating device - Google Patents

Abstract

PURPOSE:To improve a convenience in use and further improve finish state in a device having a food agitating function by a method wherein a high frequency oscillator is provided and a hook piece is arranged at a bottom surface of a heating chamber provided with an upper crystallization glass pipe heater and a lower flat surface heater and then a fixing claw arranged in a bread container is engaged with the hook piece. CONSTITUTION:A heating chamber 1 is provided with a high frequency oscillator 2, an upper crystalization glass pipe heater 6 and a lower flat surface heater 8 so as to provide a heating source. A bread container 11 for performing a kneading of bread raw material 15 to a baking operation has a supporting table 12 fixed at a lower part thereof and a fixing claw 13 is formed at a lower outer surface of the supporting table 12. In turn, a hook piece 14 is formed in such a way that it may be engaged with the fixing claw 13. With this arrangement, the bread container can be easily installed only through an engagement with the hook piece. In this way, the convenience in such and finish can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a high frequency heating device having a stirring function for food.

2. Prior Art A conventional high frequency heating device of this type is disclosed in Japanese Utility Model Publication No. 614238.
This is proposed in Publication No. 2. In this proposed configuration, the upper heater and lower heater are built into the heating chamber.
When the fixing piece protruding from the bottom of the kneading machine is inserted into the mounting hole provided on the bottom of the heating chamber and rotated by a predetermined angle, the fixing claw formed on the fixing piece will catch on the back side of the bottom of the heating chamber.
The kneader can be attached to the heating chamber.

Problems that the invention aims to solve According to the above configuration.

(a) When fixing the kneader to the bottom of the heating chamber, it is necessary to insert the fixing piece into the hole and rotate it by a predetermined angle, so the hole has to be large. Therefore, there is a great possibility that a large amount of food particles, liquid juice, etc. will flow out from this hole, causing an inconvenience.

(b) Both the upper and lower heaters are located inside the heating chamber, so they get in the way when putting in and taking out the kneading machine.

Moreover, the effective space in the heating chamber, especially the height, becomes smaller.

There were problems like.

The purpose of the present invention is to solve all of the above problems and make it easier to use.

An object of the present invention is to provide a high-frequency heating device with a stirring function that is easy to clean and has a good finish.

Means to Solve All Problems The uninvented high-frequency heating device has a high-frequency oscillator, an upper crystallized glass tube heater, a lower flat heater, and a heating chamber that serves as the entire heating source, and in this heating chamber, everything from kneading bread ingredients to baking is done. Do with a bread container.

A fixing claw provided on the outer surface of the lower part of the support stand fixed to the lower part of the bread container to hold the bread container to the bottom of the entire heating chamber, and a hook piece that is fixed to the bottom of the heating chamber and engages with the fixing claw. It is equipped with the following.

In addition, two upper crystallized glass tube heaters are installed.

They are housed in upward recesses provided on the top surface of the heating chamber, located on the front and rear sides of the top center of the bread container, respectively.

action With the above configuration.

(a) The bread container can be fixed in the heating chamber by engaging the fixing claw provided on the outer surface of the lower part of the support base fixed to the container with the hook piece fixed to the bottom of the heating chamber.
There is no need to make holes in the bottom of the heating chamber for fixing the bread container.

(Construction) Using the upper crystallized glass tube heater and lower flat heater housed in the upward recess provided on the top of the heating chamber,
The heater is made not to protrude into the entire heating chamber so that the heater does not become an obstacle when attaching and detaching the bread container, and the effective space in the heating chamber, especially the height, can be increased.

(c) When bread is baked in a bread container, the center of the top of the bread approaches the top surface of the heating chamber due to expansion.

The upper crystallized glass tube heater is placed so as to avoid directly above the center of the top of the bread container, and the heat energy is distributed back and forth to the center of the top of the bread container, ensuring a good finish with little uneven baking. It will be done.

Example The present invention will be described in detail below with reference to all the drawings.

Part 1: Fig. 1, which is a schematic cross-sectional view of the high-frequency heating device of the present invention when used as an automatic bread maker (home bakery), will be explained. According to this diagram.

This device will be explained by dividing it into five components according to function.

That is, the first component is related to high frequency heating, the second is related to heater heating, the sixth is related to bread container, the fourth is related to rotation drive unit, and the fifth is related to outer shell. however,
The members for attaching each element and auxiliary electrical parts are kept to the minimum necessary.

Each component will be explained below.

All components related to high frequency heating will be explained.

Reference numeral 1 denotes a heating chamber provided in a high-frequency heating device and made up of four layers of metal plates that reflect high-frequency energy. Reference numeral 2 designates a high frequency oscillator 9, such as a magnetron, which supplies all of the high frequency energy into the heating chamber 1 through a waveguide 3. 4 is the connection port between the waveguide filter and the heating chamber 1.

High frequency energy is irradiated into the heating chamber 1 from here.

5 is a cooling fan for cooling the high frequency oscillator 2.

All components related to heater heating will be explained.

Reference numeral 6 designates an upper crystallized glass tube heater in which a coiled heating wire is inserted into a crystallized glass tube, which is a type of ceramic that has excellent corrosion resistance against salt and oil contained in foods that are scattered during cooking. The upper crystallized glass tube heater 6 is divided into two pieces, each having an upward recess 1b provided on the upper surface of the heating chamber 1 located on the front side and the rear side of the upper center of the bread container 11, respectively.

It is housed in the heating chamber 1c and arranged so as not to protrude below the upper surface of the heating chamber 1. 7a and 7b are each dent 1
b, trapezoidal wall surface for forming 1ci.

8 is a lower flat heater attached to the outside of the bottom of the heating chamber 1. 9 is a heat insulating material that prevents heat from escaping below the lower planar heater 8. 10 is a lower plane heater 8. This is a presser metal fitting for holding the heat insulating material on the outside of the bottom surface of the 9K gold heating chamber. However, the mounting member of the presser fitting 10 itself is omitted.

All components related to the bread container will be explained.

Reference numeral 11 denotes a thin container made of a metal molded product such as aluminum whose inlet side has at least one side larger than 1/2 of the wavelength used for high-frequency energy, or a dielectric molded product such as Vilex that completely transmits high-frequency waves. 12 is a support stand fixed to the lower part of this container 11. To fix the bread container 11 in a predetermined position, rotate the bread container 11 by a predetermined angle.
Fixing claws 13 provided on the outer surface of the lower part of the support base 12 are connected to the heating chamber 1.
It engages with a hook piece 14 fixed to the bottom surface of. Reference numeral 15 indicates a bread raw material consisting of wheat flour, water, yeast, etc., and FIG. 1 shows the so-called mountain-shaped cross-sectional shape of bread after baking. 16 is a kneading blade for kneading the bread ingredients 15 and degassing them. 17 supports the kneading blade 16 in a detachable manner.

This is the axis of rotation. 18 is an oil seal made of silicone rubber or the like. Reference numeral 19 denotes a rotating shaft 171: f: a bearing that supports rotatably. 20 has the rotating shaft 17 at the top
The lower part is the driven piece, which forms one side of the clutch.

The rotation drive unit related components will be explained.

Reference numeral 21 denotes a drive piece whose upper part is fitted with the driven piece 20 through the through hole 1a' of the heating chamber 1 to form one side of a dog clutch, and whose lower part is a first drive piece connected to the large pulley 22. It is the drive shaft. 23 is a large pulley 22 and a small pulley IJ-2
This is a belt that rotatably connects 4.

25 is a small pulley 24 for rotating the kneading blade 16.
A kneading motor connected to the kneading blade 16, for example 2
Rotate at high speed of about 00 rPm. 26 is the drive shaft 21
This is a cavity resonator that captures high frequency energy that would otherwise leak to the outside of the heating chamber 1 along the lines and prevents it from being released. A bearing (circuit) that rotatably supports the first drive shaft 21 is fitted into the wall of the central hollow part of the resonator 26.

The outline related components will be explained.

27 is an outer box made of a conductor. Reference numeral 28 denotes a door that opens and closes the front entrance of the heating chamber 1, and is used to minimize the release of high frequency energy and heater heat energy to the outside during heating. Reference numeral 29 is a control panel for selecting a bread baking sequence as an automatic bread maker, or a heating operation as an open range or a single-function microwave oven. Reference numeral 30 is a leg for separating the entire device from the installation surface and preventing damage to the installation surface.

Next, the outline of the case where all components related to the rotational movement of the object to be heated 61 are set in the heating chamber 1 instead of the components related to the bread container shown in FIG. 1 and used as an open range or a single-function microwave oven. FIG. 2, which shows a cross-sectional view, will be explained.

32 is a tongue table on which the object to be heated 31 is placed and moved one rotation. Reference numeral 33 denotes a rotary table which detachably supports the turntable 32 and rotates it twice. 34 is a second drive shaft that freely supports and drives the rotary table 36. 35 is the second
It is a table motor that is coupled to the drive shaft 34 via a plurality of gears (circuits) and rotates the turntable filter 2 at a low speed of, for example, 5 to 1 Qrpnn. Note that the second drive shaft 34 is the first drive shaft. It passes through the central axis of the drive shaft 21.
Both shafts 34.21 are adapted to rotate independently of each other.

The functions and effects of the above configuration will be described.

Due to the following (a), (b), and (C), the high-frequency heating device of the present invention is easy to use, easy to clean, and has a good finish.

(a) To fix the bread container 11 to the bottom of the heating chamber 1.

A fixing claw 16 is provided on the outer surface of the lower part of the support stand 12 attached to the bread container 11, and a hook piece 14 is fixed to the bottom surface of the heating chamber 1.
The hole for fixing the bread container should be in the heating chamber 1.
There is no need to make a hole at the bottom.

(b) To facilitate the attachment and detachment of the bread container 11 and to increase the effective space, especially the height, of the heating chamber 1.

An upper crystallized glass tube heater 6 is provided in the upward recesses 1b and Ic on the upper surface of the heating chamber 1, and a lower flat heater 8 is provided on the outside of the bottom surface of the heating chamber 1, so that the heater does not protrude into the heating chamber 1. There is.

(c) When bread is baked in the bread container 11, the center of the top of the bread approaches the top surface of the heating chamber 1 due to expansion. The upper crystallized glass tube heater 6 is arranged so as not to be directly above the center, and the thermal energy is completely dispersed back and forth with respect to the upper center of the bread container 11.

Furthermore, in order to make full use of the space in the height direction within the heating chamber 1, it is preferable that the position of the gluing surface between the support stand 12 and the bottom surface of the heating chamber 1 be as low as possible. Therefore, if holes are made in this contact surface, a large amount of food waste and liquid juice will easily flow down, which is not preferable.

On the other hand, there is a through hole 1a on the bottom surface of the heating chamber 1 through which the meshing clutch section passes, and the vicinity of this hole 1a is formed into an upward convex shape to prevent food scraps and liquid from flowing down.

1. When the present invention detects that a cooking container is fixed in the heating chamber, a microcomputer-based control circuit controls the sequence from kneading to baking a single loaf of bread, as well as rice cake, rice cooking, sweet bread, and pizza. This is applied to high-frequency heating equipment that automatically performs sequences selected from a control panel.

Effects of the Invention According to the present invention, an automatic bread maker (home bakery), microwave oven,
We can provide all high-frequency heating devices with multi-functions, such as single-function microwave ovens.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the main parts when the high-frequency heating device of the present invention is used as an automatic bread maker, and Figure 2 is a sectional view of the main parts when it is used as an oven range or single-function microwave oven. It is. 1... Heating chamber, 1b, 1c... Recess. 11... Bread container, 12... Support stand. 16...fixing claw, 14...hanging piece. 15...Bread ingredients.

Claims (2)

[Claims] (1) A heating chamber (1) whose heat sources are a high frequency oscillator (2), an upper crystallized glass tube heater, and a lower flat heater (6), (8), and a bread raw material ( 15
) and a support stand (11) fixed to the bottom of the bread container (11) to hold the bread container (11) on the bottom of the heating chamber (1).
2) and the fixing claw (13) provided on the lower outer surface of the heating chamber (
1) A high-frequency heating device comprising a hook piece (14) that is fixed to the bottom surface of the device and that engages with the fixing claw (13). (2) Two upper crystallized glass tube heaters (6),
An upward recess (1b) provided on the top surface of the heating chamber (1), respectively.
), (1c). (3) The high-frequency heating device according to claim (2), wherein the recesses (1b) and (1c) are respectively located on the front side and the rear side of the upper center of the bread container (11).