JPH0221128A - High-frequency heating apparatus - Google Patents

Abstract

PURPOSE:To improve in the ease of handling, cleanability, finish condition, and the like by providing a baking pan in the heating chamber, fixing claws for holding it at the bottom inside the heating chamber, and catches which engage with the claws. CONSTITUTION:A heating element 8 for the lower position is laid on a hollow 1d of the bottom in the heating chamber 1 and positioned lower than the bottom of a baking pan 11. To set the baking pan 11 in place, by turning the pan 11 by a specified angle fixing claws 13 provided on the lower outer surface of a supporting table 12 are fitted into catches 14 fixed to the bottom of the heating chamber 1. The dough 15 is prepared from flour, water, yeast, etc. A kneading blade 16 is used to knead the dough 15 and degas it. The kneading blade 16 is supported on a rotary shaft 17 in a detachable manner and rotated around it. An oil seal 18 is formed of silicone rubber, etc. A bearing 19 supports a rotary shaft 17 in a freely rotatable manner. A drive member 20 has its upper part attached to the rotary shaft 17 and its lower part mated with the other member of a clutch.

Description

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

2. Prior Art A conventional high frequency 71D heating device of this type
This is proposed in Publication No. 382. In the structure of this proposal,
When the upper heater and lower heater are built into the heating chamber, the fixing piece protruding from the bottom of the kneader is inserted into the mounting hole provided on the bottom of the heating chamber and rotated to a predetermined angle. The formed fixing claws catch on the back side of the bottom of the heating chamber, allowing the kneader to 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 fixed peripheral piece into all the holes and rotate it by a predetermined angle, so the holes cannot but be large. therefore.

There is a strong 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 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 the above problems and improve usability.

Our objective is to provide a complete high-frequency heating device with a stirring function that is easy to clean and has a good finish.

Means for Solving the Problems The high-frequency heating device of the present invention includes a heating chamber in which a high-frequency oscillator, an upper crystallized glass tube heater, and a lower heater are used as heat sources, and in which operations from kneading bread ingredients to baking are performed in this heating chamber. A bread container, a fixing claw provided on the lower outer surface of one support fixed to the bottom of the bread container to hold the bread container on the bottom of the heating chamber, and a fixing claw fixed to the bottom of the heating chamber and attached to the fixing claw. It is equipped with an engaging hook piece.

Furthermore, there are two upper crystallized glass tube heaters in total, and they are placed on the front side and the rear side, respectively, from just above the center of the top of the bread container. Further, the lower heater is disposed in a recess in the bottom of the entire heating chamber, and is located below the bottom of the bread container.

action With the above configuration.

4. The bread container can be fixed in the heating chamber by engaging the fixing claw fixed to the container and provided on the outer surface of the lower part of the oven support with the hook fixed to the bottom of the heating chamber, so the hole for fixing the bread container is There is no need to make a hole at the bottom of the heating chamber.

(b) The heater is placed in a recess facing upwards on the top of the heating chamber, and uses the upper crystallized glass tube heater and the lower heater installed in the recess on the bottom of the heating chamber to prevent the heater from turning off when the bread container is attached or removed. This is done so that it does not get in the way, and at the same time allows for a large effective space in the heating chamber, especially the height.

(C) When baking a loaf of bread in a bread container, the center of the top of the loaf of bread approaches the top of the heating chamber due to expansion.

All of the upper crystallized glass tube heaters are arranged to avoid directly above the center of the top of the bread container, and the heat energy is completely dispersed back and forth from the center of the top of the bread container, resulting in a good finish with little uneven baking. It will be done.

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

First of all, is this a schematic cross-sectional view when the high-frequency heating device of the present invention is used as an automatic bread maker (home bakery)? FIG. 1 shown in FIG. 1 will be explained.

With reference to this diagram, the nine devices will be divided into five components according to function and explained. That is, as for these components, the first is related to high frequency heating, the second is related to heater heating, the third is related to bread container, the fourth is related to rotation drive unit, and the fifth is related to outer shell. However, the members 2 for attaching each element and auxiliary electrical parts are kept to the minimum necessary.

Each component will be explained below.

All the heat-related components of the high frequency 710 will be explained.

Reference numeral 1 denotes a heating chamber surrounded by a metal plate that totally reflects high frequency energy, provided in the high frequency heating device. 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 a coupling port between the waveguide 6 and the heating chamber 1;

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

Reference numeral 5 denotes a cooling blower for completely cooling the high frequency oscillator 2.

The heater heating related components will be explained.

6 is an upper crystallized glass tube heater with a coiled heating wire inserted into a crystallized glass (product name: Miraclon) tube, which is a type of ceramic that has excellent corrosion resistance against salt and oil contained in foods that are scattered during cooking. It is. The upper crystallized glass tube heater 6 is divided into two pieces and housed in upward recesses 1b and 1c provided in the upper panel of the heating chamber 1, which are located on the front and rear sides of the upper center of the bread container, respectively. It is arranged so as not to protrude below the upper surface of the heating chamber 1. 7a and 7b are trapezoidal wall surfaces for forming depressions Ib and 1cf, respectively. Reference numeral 8 denotes a lower heater disposed within the recess 1d in the bottom of the heating chamber (heating chamber) and positioned below the bottom of the bread container (bread container).

All components related to the bread container will be explained.

Reference numeral 11 denotes a bread container in which at least one side of the inlet is made of a metal molded product such as aluminum or a dielectric molded product such as Pyrex that transmits high frequency waves, which is smaller than the wavelength 174 used for high frequency energy. 12 is a support stand fixed to the lower part of this container). To fix the bread container 117 in a predetermined position, rotate the bread container 11 by a predetermined angle, and then
A fixing claw 13 provided on the outer surface of the lower part of the heating chamber 2 engages with a hook piece 14 fixed to the bottom surface of the heating chamber. Reference numeral 15 indicates a bread raw material consisting of wheat flour, water, yeast, etc., and FIG. 1 shows the cross-sectional shape of the bread after baking, which is called a chevron shaped bread metal. 16 is a kneading blade for kneading 15 tons of bread ingredients and degassing. 17 supports 16 kneading blades that can be attached and detached at will.

This is the axis of rotation. 18 is an oil seal made of silicone rubber or the like. Reference numeral 19 denotes a bearing that rotatably supports the rotating shaft 17. The upper part of 20 is fixed to the rotating shaft 17, and the lower part is engaged and is one side of the clutch? This is the driven piece.

All components related to the rotation drive section will be explained.

Reference numeral 21 denotes a drive piece that is fitted with the driven piece 20 through the through hole 1a' (j of the heating chamber) to constitute one side of the dog clutch, and the lower part is the first drive shaft connected to the large pulley 22. 23 is a large pulley 22 and a small pulley 24
This is a belt that rotatably connects the

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 a high speed of about 00 rpm. Reference numeral 26 denotes a cavity resonator that prevents all of the high frequency energy that would otherwise leak out of the heating chamber along the drive shaft 21 from being released. A first drive shaft 2 is provided on the wall surface of the central hollow part of the resonator 26.
A bearing (circuit) is fitted that supports rotation freely.

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, which minimizes 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, an open range, or a heating operation as 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, in place of the bread container-related components shown in Fig. 1, rotational movement-related components of the heated object 3) are set in the 7111 heat chamber 1 and used as an open range or single-function microwave oven. FIG. 2, which shows a schematic cross-sectional view, will be explained.

62 is a turntable on which the object to be heated 61 is placed and moved nine times. Reference numeral 66 is a rotary table that detachably supports the turntable 62 and rotates it once. A second drive shaft 54 detachably supports and drives the rotary table 63. 65 is connected to the second drive shaft 64 through a plurality of gears (circuits) and
This is a table motor that rotates the turntable at a low speed of, for example, 5 to 10 rpm. 2. The second drive shaft 64 passes through the center axis of the first drive shaft 2) and
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 (e), 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 entire bread container 11 to the bottom of the heating chamber 1.

A fixing claw provided on the outer surface of the lower part of the support stand 12 attached to the bread container 11. A hook piece 14 fixed to the bottom surface of the 1st 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 (bread container) and to increase the effective space, especially the height, in the heating chamber 1.

The upper crystallized glass tube heater 6 is housed in an upwardly directed recess 1b, ic provided in the upper panel of the heating chamber 1, and the lower heater 8 is arranged in a recess 1d in the bottom of the heating chamber 1.

(C) When bread is baked in the bread container 11, the top center 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 to avoid this, and the thermal energy is completely dispersed back and forth with respect to the center of the upper part of the bread container 11.

Further, 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 contact 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 particles and liquid juice will easily flow down, which is not desirable.

On the other hand, there is a through hole 1a on the bottom surface of the heating chamber 1 through which the dog clutch part passes, and the vicinity of this hole 1a is shaped upwardly to prevent food particles and liquid juice from flowing down.

21 In the present invention, when it is detected that a cooking container is fixed in the heating chamber, a control circuit centered on a microcomputer controls the sequence from kneading to baking for 9 servings, as well as mochi, cooking, etc. It is applied to high-frequency heating equipment that automatically selects the sequence for sweet bread, pizza, etc. from a control panel.

Effects of the Invention According to the present invention, an automatic bread maker (home bakery), an open range,
A high-frequency heating device having multiple functions such as a single-function microwave oven can be provided.

[Brief explanation of the drawing]

Figure 1 is a cross-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 cross-sectional view of the main parts when it is used as an open range or single-function microwave oven. It is. 1... Heating chamber, 1b, 1c, 1d... Recess. 2...High frequency oscillator. 6... Upper crystallized glass tube heater 8... Lower heater, 11... Bread container +12...
Support stand, 13...fixing claw. 14...Hook piece, 15...Bread ingredients.

Claims (4)

[Claims] (1) A heating chamber (1) which uses a high frequency oscillator (2), an upper crystallized glass tube heater, and lower heaters (6) and (8) as heat sources, and a bread raw material (15 ) and a support stand (12) fixed to the bottom of the bread container (11) to hold the bread container (11) on the bottom of the heating chamber (1). A high frequency device characterized by comprising a fixing claw (13) provided on the outer surface of the lower part, and a hook piece (14) fixed to the bottom surface of the heating chamber (1) and engaging with the fixing claw (13). heating device. (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). (4) Connect the lower heater (8) to the recess (1) on the bottom of the heating chamber (1).
d) and located below the bottom of the bread container (11).