JPH01313025A - High frequency heating device - Google Patents

Abstract

PURPOSE:To improve facility and cleaning ability by providing a bread container to perform a process between operation to knead a bread raw material and baking finish in a heating chamber, and a fixing claw situated on the outer surface of the lower part of a support stand secured to the lower part of the bread container and adapted to hold the bread chamber to the bottom of the interior of the heating chamber. CONSTITUTION:A high frequency oscillator 2 is provided for feeding high frequency energy in a heating chamber 1 through a waveguide 3. When a bread container 11 is secured to the bottom surface of the heating chamber 1, a fixing claw 13 situated on the outer surface of the lower part of a support stand 12 mounted to the bread container 11 may be engaged with a hook piece 14 secured to the bottom of the heating chamber 1. In order to facilitate mounting and demounting of the bread chamber 11, a heater 6 for hot blast is mounted, a heater is eliminated from the interior of the heating chamber 1, and the effective space of the interior of the heating chamber 1 is especially increased to a high value. When baking finish is effected by blowing hot blast from the side of the heating chamber 1, a turn table with legs is placed in a manner to be piled up on a turn table 32 to perform cooking in a 2-stage, resulting in sharp improvement of facility.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a high-frequency heating device having a food stirring function.

(Prior art) A conventional high frequency heating device of this type was developed in Japanese Utility Model Publication No. 61-423
This is proposed in Publication No. 82. 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.

(Problem to be solved by the invention) According to the above configuration.

(a) When fixing the kneader to the bottom of the heating chamber, it is necessary to insert a fixing piece into the hole and rotate it by a predetermined angle, so the hole has to be large. Therefore, there is a high possibility that a large amount of food crumbs, liquid juice, etc. will flow through this hole and cause an inconvenience. (b) Since both the upper and lower heaters are inside the heating chamber, they will get in the way when putting in and taking out the kneading machine. become.

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.

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

(Means for Solving the Problems) The high-frequency heating device of the present invention includes: a heating chamber that uses a high-frequency oscillator and a hot air heater as heat sources; a bread container in which bread ingredients are kneaded and baked in the heating chamber; In order to hold the bread container on the bottom surface 1 of the heating chamber, a fixing claw is provided on the outer surface of the lower part of the support base fixed to the bottom of the bread container, and a hook is fixed to the bottom surface of the heating chamber and engages with the fixing claw. It is equipped with a piece.

(for production) With the above configuration.

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

(b) Using a hot air heater, the heater is removed from the heating chamber so that the heater does not get in the way when the bread container is attached or removed, and the effective space in the heating chamber, especially the height, can be increased. .

(C) When baking sweet bread, pizza, etc. from mixing to primary fermentation in a bread container, forming it into two parts and baking it with a hot air heater, you can use the Nokun container - a two-tiered oven unique to hot air ovens with a cup's worth of ingredients. A hot-air open range with a built-in container is extremely easy to use, allowing you to prepare the exact amount of food you want to cook.

(Example) The present invention will be described in detail below with reference to the drawings. First, we will explain Figure 1, which is a schematic cross-sectional view of the high-frequency heating device of the present invention when it is used as an automatic heating device.As shown in this figure, the device is divided into five components according to function. I will explain it as follows.

The first of these components is related to high frequency heating.

The second one is heater heating related, and the third one is container related.

The fourth is related to the rotation drive unit, and the sixth is related to the outer shell.

However, the members for attaching each element and auxiliary electrical parts shall be kept to the minimum necessary. Each component will be explained below.

High frequency heating related components will be explained.

Reference numeral 1 denotes a heating chamber surrounded by a metal plate that reflects high frequency energy and is provided in a high frequency heating device. At least the bottom of this heating chamber 1 is a non-magnetic metal plate.

For example, it is formed of SO2304. Reference numeral 2 denotes a high frequency oscillator 9, such as a magnetron, which supplies high frequency energy into the heating chamber 1 through a waveguide 3. 4 is a coupling port between the waveguide 3 and the heating chamber 1, from which high frequency energy is irradiated into the heating chamber 1. 6 is a cooling blower for cooling the high frequency oscillator 2.

The heater heating related components will be explained.

6 is a hot air heater attached to the outside of the rear surface of the heating chamber 1. Reference numeral 7a denotes a first circulation fan that sucks air in the heating chamber 1 through the suction port 1b, heats it with the hot air heater 6, and blows it into the heating chamber 1 again through the blowout port 1C. 8a is a first hot air generation chamber that houses the hot air heater 6 and the first circulation fan 7a. 7b is a second circulation fan that sends thermal energy released from the wall of the first hot air generating chamber 8a heated by the hot air heater 6 into the heating chamber 1. 8b is the first
This is a second hot air generation chamber that houses the hot air generation chamber 8a and the second circulation fan 7b. 9 is the first and second circulation fan 7a
, 7b is a fan motor that rotates. The first and second circulation fans 7a and 7b are rotatably supported by the fan motor 9 by a nut 10a1, a positioning spacer 10b, and a retaining ring 1oC.

Bread container related components will be explained.

Reference numeral 11 is a bread container in which at least one side of the breadboard is made of a metal molded product such as aluminum, in which the high-frequency energy is greater than 1/2 of the wavelength used, or a dielectric molded product such as Pyrex that 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, the bread container 11 is rotated by a predetermined angle, and the fixing claw 13 provided on the outer surface of the lower part of the support base 12 is engaged with the hook piece 14 fixed to the bottom surface of the heating chamber 1. match. Reference numeral 16 indicates a bread raw material consisting of wheat flour, water, yeast, etc., and FIG. 1 shows the so-called mountain-shaped bread cross-sectional shape after baking. 16 kneads bread ingredients 15,
This is a kneading blade used to release gas. Reference numeral 17 is a rotating shaft that detachably supports the kneading blade 16 and rotates it once. 18
is an oil seal made of silicone rubber or the like. 19
is a bearing that rotatably supports and holds the rotating shaft 17. 2o
is a driven piece whose upper part is fixed to the rotary shaft 17 and whose lower part is engaged and 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 engages with the driven piece 20 through the through hole 1a of the heating chamber 10 to form one side of a dog clutch, and whose lower part is a first drive shaft connected to a large pulley 22. . A belt 23 rotatably connects the large pulley 22 and the small pulley 24. 26 is kneading feather 1
A kneading motor connected to a small pulley 24 rotates the kneading blades 16 at a high speed of about 200 rpm, for example. Reference numeral 26 denotes a cavity resonator that takes in high frequency energy that would otherwise leak out of the heating chamber 1 along the drive shaft 21 and prevents it from being released.

A first drive shaft 21 is provided on the wall surface of the central hollow part of the resonator 26.
A bearing (circuit) is fitted to support the motor so that it can rotate 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 1, and is used to minimize the release of high frequency energy and heater thermal 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 oven range or 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, components related to the rotational movement of the object to be heated 31 are set in the heating chamber 1 in place of the components related to the bread container shown in FIG. FIG. 2, which shows a schematic cross-sectional view, will be explained.

32 is a turntable on which the object to be heated 31 is placed and moved twice. Reference numeral 33 denotes a rotary table that detachably supports the turntable 32 and rotates it once.

34 is a second drive shaft that detachably supports and drives the rotating shaft 33. 36 is a second drive shaft 34 and a plurality of gears (circuits)
For example, the turntable 32 is
This is a table motor that rotates at a low speed of ~10 rpm. Note that the second drive shaft 34 passes through the central axis of the first 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.

According to the following (a), (b), and (C), the harmonic heating device of the present invention is easy to use and easy to clean.

(a) To fix the bread container 11 to the bottom of the heating chamber 1,
A hook piece 1 fixes a fixing claw 13 provided on the lower outer surface of a support stand 12 attached to a bread container 11 to the bottom surface of the heating chamber 1.
All you have to do is engage with 4.

There is no need to make a hole for fixing the bread container in the bottom of the heating chamber 1.

(b) To facilitate attachment and detachment of the bread container 11, a hot air heater 6 is provided and the heater is removed from the heating chamber 1;
The effective space within the heating chamber 1, especially the height, is increased.

(C) The internal volume of the bread container 11 for bread is approximately 21 for one loaf! , about 34' for 1.5 repulsions. Moreover, the baked volume increases by 2 to 3 times that of the dough. Therefore, after bread, pizza, etc. are mixed in the bread container 11 and subjected to primary fermentation, they are molded into one piece and placed on the turntable 32.
When performing from next fermentation to baking, turntable 3
2-sheets is not enough, and 2 sheets are often required. In this case, in this embodiment where hot air is blown in from the side of the heating chamber 1 to bake the food, a one-legged turntable (circuit) can be stacked on top of the turntable 32 to perform two-stage cooking, which greatly improves usability. In this way, only when the bread container 11 is applied to a hot air microwave oven can the two-stage cooking characteristic of the hot air microwave oven be utilized extremely effectively.

Furthermore, in order to effectively use 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 a hole is made in this contact surface, a large amount of food particles and liquid will easily flow down.
Undesirable.

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.

In addition, when the present invention detects that a cooking container is fixed in the heating chamber, a control circuit centered on a microcomputer controls the sequence from kneading the bread to baking it, as well as mochi and cooking the rice.

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, there is provided an automatic bread maker (home bakery) and an oven range that are easy to use and easy to clean.

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 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. DESCRIPTION OF SYMBOLS 1... Heating chamber, 2... High frequency oscillator, 6... Heater 9+ for hot air, 11... Bread container, 12... Support stand,
13...Fixing claw, 14...Hook piece, 16...
・Bread ingredients.

Claims (1)

[Claims] A heating chamber (1) that uses a high frequency oscillator (2) and a hot air heater (6) as heating sources, and a bread container (1) in which bread ingredients (15) are kneaded and baked in this heating chamber (1).
1), and fixing claws (13) provided on the outer surface of the lower part of the support base (12) fixed to the lower part of the bread container (11) in order to hold the bread container (11) on the bottom surface inside the heating chamber (1). and a hook piece (14) that is fixed to the bottom surface of the heating chamber (1) and engaged with the fixing claw (13).