JP2012078006A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a heating cooker capable of preventing sparks and local overheating in a heating chamber when a heater is constituted movably and microwave heating is performed.SOLUTION: The heating cooker includes: a high-frequency oscillator 10 oscillating high-frequency waves to heat a heated object 2; a waveguide 8 guiding the high-frequency waves to the heating chamber 3; a movable heater 15 arranged in the heating chamber 3; heater driving sheet metal 40 supporting the movable heater 15; a drive means vertically moving the movable heater 15; a control means 100 controlling heating operations by the high-frequency oscillator 10 and the movable heater 15 and the drive means; and a storage means 110 in which information related to a predetermined region of a movement region of the movable heater 15 is stored beforehand. When the movable heater 15 is positioned in the predetermined region, the control means 100 performs the heating operation by the high-frequency oscillator 10, and when the movable heater 15 is not positioned in the predetermined region, the control means does not perform the heating operation by the high-frequency oscillator 10.

Description

  The present invention relates to a cooking device having a movable structure of a heat source.

  In the related art, for example, “a cooking chamber having a magnetron and a movable cooking portion that heats food and drink that is acted on by a moving portion for moving the cooking portion from an initial position in the cooking chamber to a cooking position is provided. In the method of controlling a microwave oven, before and after moving the cooking unit to the cooking position by the operation of the moving unit, operating the magnetron for heating food and drink, and when the moving unit is moving the cooking unit, The cooking unit and the magnetron are arranged so as to heat food and drink together after moving, and the step of operating the magnetron is configured to simultaneously operate the moving unit and the magnetron. Determining whether a combination cooking operation for operating is selected; and when the combination cooking operation is selected, the cooking unit is moved to an initial position. Moving from a cooking position to a cooking position, detecting a position of the cooking part, determining whether the cooking part has reached a predetermined cooking position based on the detected position of the cooking part, When the cooking unit reaches the predetermined cooking position, the method includes a step of stopping the moving unit, and a step of operating the magnetron in a state where the moving unit is stopped. Is proposed (see, for example, Patent Document 1).

Japanese Patent No. 3860141 (Claim 1)

In a heating cooker, raising the heating power is an essential part of the cooker. In addition to shortening the cooking time, increasing the thermal power also affects the taste improvement factors such as “burnt” and “crisp sensation”, enabling quick and delicious cooking. One way to increase the thermal power is to increase the input power to the heater.
However, there is actually a limit to the power that can be input. For example, in a commercial 100V commercial power source, the total power is about 1500W.
Even if there is no limit to the input power, forcibly increasing the input power will cause the heating chamber and the case to become hot, requiring measures to reduce the temperature of the electrical components, There are adverse effects such as an increased possibility of discomfort to the user due to high temperatures.

Therefore, as one means for effectively improving the heating performance, there is a method of bringing a heater as a heating source closer to an object to be heated. If the heater can be brought close to the object to be heated, the effect of radiant heating and the effect of heat transfer due to the relative increase in the ambient temperature will be improved.
For this reason, in cooking, it is desired that the heater can be moved so that the distance between the object to be heated and the heater can be arbitrarily set to achieve a desired finish.

On the other hand, from the viewpoint of heating the inside of food at high speed, microwave heating (high frequency dielectric heating) is effective as in a generally known microwave oven. Since radiation and heat transfer are heated from the outside of the object to be heated, only the surface of the object to be heated is heated, and the internal heating is not sufficient. Microwave heating, which is relatively easy to heat the inside, works effectively to balance the temperature rise of the inside and the surface of the object to be heated.
In such microwave heating, the microwaves reflected in the heating chamber are multiple-reflected, and there are strong and weak portions such as standing waves, and the object to be heated has high and low temperatures. Easy to make part. For this reason, it is desired to perform heating by microwaves uniformly.

In addition, when the heater is arranged at an arbitrary position and microwave heating is performed, the heater in the heating chamber serves as a microwave reflecting element, so that the electric field distribution of the microwave reflected in the heating chamber changes depending on the position of the heater. It will be.
For this reason, there existed a problem that depending on the position of a heater, the standing wave distribution of a microwave might concentrate locally, and a spark and local overheating may arise.

  In the technique of the above-mentioned Patent Document 1, the magnetron is operated in a state where the moving part that is a heater is stopped, and control is performed to stop the output from the magnetron while the heater is moving. For this reason, since the heater is always located at a predetermined cooking position during operation of the magnetron, there is a problem that the electric field distribution of the microwave does not change, and it is easy to form a portion where the temperature of the object to be heated is high and low. there were.

The present invention has been made to solve the above-described problems, and prevents occurrence of sparks and local overheating in the heating chamber when microwave heating is performed with a heater configured to be movable. It is to obtain a heating cooker that can be.
Moreover, the heating cooker which can make uniform the heating by a microwave easily is obtained.
Moreover, when heating by a heater, the distance between a to-be-heated object and a heater can be set arbitrarily and the cooking device which can provide the fine finish according to a user's liking is obtained.
Moreover, the heating cooker which can set the movement position of a heater automatically according to the cooking content is obtained.

  A heating cooker according to the present invention includes a heating chamber that houses a heated object, a high-frequency oscillator that oscillates a high frequency for heating the heated object, and is connected to the heating chamber and oscillated from the high-frequency oscillator. A waveguide for guiding a high frequency to the heating chamber, a movable heater disposed in the heating chamber, a heater support means for supporting the movable heater, and driving the heater support means in the vertical direction to move the movable heater up and down Drive means for moving in the direction, heating operation of the high-frequency oscillator and the movable heater, control means for controlling the drive means, and storage means for storing in advance information relating to a predetermined area of the moving area of the movable heater And when the position of the movable heater is within the predetermined region, the control means performs a heating operation by the high-frequency oscillator, and the position of the movable heater is Serial When not in the predetermined area, is not conducted heating operation by the high-frequency oscillator.

  The present invention can prevent the occurrence of sparks and local overheating in the heating chamber when microwave heating is performed with the heater configured to be movable.

It is a main body perspective view of the heating cooker which shows Embodiment 1 of this invention. It is principal part side sectional drawing of the heating cooker which shows Embodiment 1 of this invention. It is a principal part front sectional view of the heating cooker which shows Embodiment 1 of this invention. It is a schematic top view of the heating cooker which shows Embodiment 1 of this invention. It is a back perspective view of the heating cooker which shows Embodiment 1 of this invention. It is principal part upper sectional drawing of the heating cooker which shows Embodiment 1 of this invention. It is principal part side sectional drawing of the door periphery of the heating cooker which shows Embodiment 1 of this invention. It is a figure which shows the operation panel of the heating cooker which shows Embodiment 1 of this invention. It is a control block diagram of the heating cooker which shows Embodiment 1 of this invention. It is a flowchart of the cooking procedure of the heating cooker which shows Embodiment 1 of this invention. It is a flowchart of the cooking procedure of the heating cooker which shows Embodiment 2 of this invention. It is a schematic diagram explaining the vertical motion of the movable heater of the heating cooker which shows Embodiment 2 of this invention. It is a flowchart of the cooking procedure of the heating cooker which shows Embodiment 3 of this invention.

Embodiment 1 FIG.
1 is a perspective view of a main body of a cooking device showing Embodiment 1 of the present invention.
In the drawings after FIG. 1, the case (exterior) and the like are removed as necessary for easy viewing.

In FIG. 1, a heating chamber 3 is provided in the main body 1. On the front surface of the heating chamber 3, a door 4 for opening and closing the opening is provided. The user opens the door 4 and stores the object to be heated 2 (not shown) in the heating chamber 3.
Further, the door 4 is provided with a visual window 19 made of glass or the like, so that the cooking state of the object to be heated 2 in the heating chamber 3 can be confirmed.

An operation panel 6 is provided on the front surface of the main body 1.
The user stores the object to be heated 2 in the heating chamber 3, closes the door 4, and operates the operation panel 6 to heat the object 2 to be heated.

FIG. 2 is a side cross-sectional view of the main part of the heating cooker showing Embodiment 1 of the present invention.
FIG. 3 is a front sectional view of an essential part of the heating cooker showing Embodiment 1 of the present invention.
FIG. 4 is a schematic top view of the cooking device showing the first embodiment of the present invention.
Hereinafter, description will be given with reference to FIGS.

A high frequency oscillator (magnetron) 10 is a high frequency oscillation source. The high frequency oscillator 10 oscillates a high frequency (hereinafter also referred to as “microwave”). For example, a cooking device used in a general home oscillates a microwave having a frequency of about 2450 MHz.
The microwave oscillated from the high-frequency oscillator 10 has a structure that propagates to the antenna 11 through the waveguide 8.

In the center of the bottom surface in the heating chamber 3, a dielectric plate 7 that transmits high frequency is installed.
The dielectric plate 7 is made of, for example, ceramic, and is installed so as to be substantially flat with the bottom plate 32 of the heating chamber 3.
An antenna 11 that effectively propagates a high frequency into the heating chamber 3 is installed under the dielectric plate 7.
The antenna 11 is intended for electric field radiation, and is made of a good conductor such as aluminum, and has a flat plate portion connected to the tip of a hollow antenna shaft portion or is integrally formed.

The antenna 11 is rotationally driven by an antenna motor 12.
The antenna 11 rotates in the antenna chamber 13 to eliminate as much as possible the influence of the strength of the microwave propagating from the surface of the antenna 11 and the strength of the microwave due to the standing wave generated in the heating chamber 3. As a result, the heating of the object to be heated 2 located above the antenna 11 is leveled, and as a result, there is an effect of suppressing heating unevenness.

Reference numeral 9 denotes temperature detection means. The temperature detection means 9 measures the wall surface temperature and the atmospheric temperature of the heating chamber 3.
As the temperature detection means 9, any detection means such as an infrared sensor or a thermistor can be used.

On both sides of the dielectric plate 7, lower heaters 14 are installed on both sides so that the object to be heated 2 can be heated from below via a bottom plate 32 made of metal.
The lower heater 14 is configured by a glass tube heater 30 installed outside the bottom surface of the heating chamber 3 and a reflecting plate 31 that substantially seals the glass tube heater 30 together with the bottom surface of the heating chamber.
The lower heater 14 heats the article to be heated 2 by heating the bottom surface of the heating chamber 3 by radiant heat from the glass tube heater 30 and infrared rays reflected from the reflecting plate 31 and increasing the temperature of the bottom surface. Is possible.
The glass tube heater 30 generally has a fast temperature rise, and is capable of efficiently heating the bottom surface of the heating chamber 3 together with heat ray reflection from the reflector 31.
In addition, since the dielectric plate 7 is installed in a partitioned manner, the heat absorbed by the dielectric plate 7 that is often composed of ceramic having a large specific heat is reduced, resulting in the object 2 being heated. It has the effect of increasing the heat received.

Further, since the lower heater 14 is provided below the bottom surface of the heating chamber 3, even if the movable heater 15 moves up and down, it does not interfere (contact) with the moving area of the movable heater 15. Yes.
The arrangement position of the lower heater 14 is not limited to this. It can be fixedly installed at a position below the center of the heating chamber 3 and not interfering with the moving area of the movable heater 15.

Further, high radiation coating is applied to the heating chamber 3 side of the bottom plate 32 in order to efficiently radiate heat to the heating chamber 3 side.
The bottom surface plate 32 is provided with a bottom surface convex portion 38 in order to increase the strength when the bottom surface plate 32 is thermally contracted or expanded.
The bottom surface convex portion 38 can also be used as a guide rail when the square plate 5 is placed directly on the bottom surface of the heating chamber 3.
In addition, a square plate rail 47 that slidably supports the square plate 5 is formed in the approximate center of the inner wall side surface of the heating chamber 3.

Reference numeral 15 denotes a movable heater. The movable heater 15 is composed of, for example, a sheathed heater.
The movable heater 15 is a heat source for heating the article 2 to be heated from the upper surface. By moving the movable heater 15 up and down, the distance to the object to be heated 2 can be changed. For this reason, it is possible to arbitrarily change the baked state of the article 2 to be heated.

FIG. 5 is a rear perspective view of the heating cooker showing the first embodiment of the present invention.
FIG. 6 is a cross-sectional view of the main part of the heating cooker showing Embodiment 1 of the present invention.
From here, it demonstrates with reference to FIGS.

The movable heater 15 includes a support portion on the back surface of the heating chamber 3, and the heater drive metal plate 40 that also serves as the support portion moves up and down.
The structure is such that the lead-out portions (two places) of the movable heater are fixed to the heater drive metal plate 40 and the fixed heater drive metal plate 40 itself moves up and down.
In the first embodiment, as shown in FIGS. 2 and 5, the movable heater 15 is formed to bend in a meandering shape in a crank shape in a side view and a meandering shape in a plan view.
Further, the serpentine portion in plan view of the movable heater 15 is supported so as to be substantially parallel to the bottom surface of the heating chamber 3 in side view.
The shape of the movable heater 15 is not limited to this, and can be an arbitrary shape. For example, it may be formed in a straight line when viewed from the side.

A rack 41 is fixed to the heater drive metal plate 40, and the heater drive motor 43 rotates the pinion 42 to move the heater drive metal plate 40 directly, that is, vertically.
In the first embodiment, the movable heater 15 can be moved from a position in the vicinity of the top surface of the heating chamber 3 (hereinafter also referred to as “home position”) within a range (moving region) in a substantially central position of the heating chamber 3. Is formed.
The moving area of the movable heater 15 is not limited to this. For example, the moving region may be from a position near the top surface of the heating chamber 3 to a position near the bottom surface of the heating chamber 3.

  At the lead-out portion of the movable heater 15, a heater choke 45 and a heater cover 46 that surround the lead-out portion are used to create a bag path structure that prevents high-frequency leakage, so-called choke structure, and to prevent leakage of high-frequency that propagates into the heating chamber 3. .

The “heater driving sheet metal 40” corresponds to “heater support means” in the present invention.
The “rack 41”, “pinion 42”, and “heater drive motor 43” correspond to “drive means” in the present invention.

A insulator 44 is installed at a position close to the movable heater 15 on the top surface in the heating chamber 3.
The insulator 44 functions as an insulating spacer that prevents the movable heater 15 from coming into contact with the top surface of the heating chamber 3 even if the movable heater 15 is deformed, and maintains the insulating state of the movable heater 15. Is possible.
The installation position of the insulator 44 is not limited to this. The insulator 44 may be provided in at least a part of the top surface of the heating chamber 3 in the vicinity of the movable heater 15 moved to the vicinity of the top surface of the heating chamber 3.

In addition, as shown in FIG. 2, a heater housing step 39 protruding inside the heating chamber 3 is provided on the top surface of the heating chamber 3.
By providing the heater housing step 39, when the movable heater 15 moves to the home position, which is a position near the top surface, the heater 15 is housed in a deep position on the top surface of the heating chamber 3, and the movable heater 15 is placed in the user's hand. The possibility of touching can be reduced.
In addition, the position of the heater accommodation level | step difference 39 is not restricted to this. Of the top surface of the heating chamber 3, a heater housing step 39 protruding to the inside of the heating chamber 3 at least partially between the movable heater 15 moved to the vicinity of the top surface of the heating chamber 3 and the opening of the heating chamber 3. May be provided.

50 is a turntable. The turntable 50 is placed on the article to be heated 2 and is rotationally driven during the heating operation.
This makes it possible to heat the object to be heated 2 while rotating it, and facilitate uniform heating.

52 is a turntable rotating shaft. The turntable rotating shaft 52 is rotated by a turntable motor 53 connected from the back of the heating chamber 3.
51 is a turntable support. The turntable support base 51 is made of a material having high heat resistance such as silicon or PTFE, and is provided with a roller 54 for supporting the turntable 50 and supports the turntable together with the turntable rotating shaft 52.

The turntable 50 is formed of a high-frequency transparent dielectric such as ceramic. This is because it can be applied to both high frequency dielectric heating and heater heating.
The tip of the turntable rotating shaft 52 has a shape that facilitates transmission of a driving force such as a bevel gear shape, for example, and the rotational driving force is transmitted to the turntable 50 and can be rotated.
On the other hand, the connection to the turntable motor 53 side is used by inserting the shaft portion of the turntable rotating shaft 52 provided on the back side of the heating chamber 3. In other words, the rear surface of the heating chamber 3 is on the female side connected to the turntable motor 53, and the turntable rotary shaft 52 is on the male side.
With this configuration, it is not necessary to have a drive source for rotating the turntable 50 on the bottom surface of the heating chamber 3, so that the bottom surface feeding portion, that is, the portion of the dielectric plate 7 can be configured without unevenness.

FIG. 7 is a side cross-sectional view of the main part around the door of the heating cooker showing Embodiment 1 of the present invention.
As shown in FIG. 7, the door 4 is provided with an open / close detection switch 60 for detecting the open / closed state.
The control means 100 to be described later detects the open state of the door 4 by the open / close detection switch 60, and at the time of opening, the power supply to heating sources such as the high-frequency oscillator 10, the movable heater 15, the lower heater 14 and the like is turned off. Stop. Thereby, it is a safe structure in which the open state of the door 4 and heating are not compatible.

Reference numeral 27 denotes a door lock. The door lock 27 is rotated by a rotation driving means (not shown) to switch between a locked state in which the door 4 is kept closed and a release state in which the door 4 can be opened and closed.
The configuration of the door lock 27 is not limited to this. What is necessary is just to switch the locked state which maintains the door 4 in the closed state, and the release state which enables the door 4 to be opened and closed.
The control unit 100 described later sets the door lock 27 in a locked state so that the door 4 cannot be opened accidentally while the movable heater 15 is moving, so that the door 4 cannot be opened. Details of the operation will be described later.

FIG. 8 is a diagram showing an operation panel of the cooking device showing Embodiment 1 of the present invention.
As shown in FIG. 8, the operation panel 6 includes setting input means 16 and notification means 17.
The notification means 17 displays a heating time, a set temperature, etc., and notifies various alerts.
This notification means 17 can be comprised by a liquid crystal (LCD), various light emitting elements (LED etc.), etc., for example.
In addition, although this Embodiment 1 demonstrates the case where it alert | reports to a user by a display, this invention is not limited to this. For example, you may make it alert | report by a sound.

The setting input means 16 performs input operations such as heating start, heating time setting, and target heating temperature setting.
For example, the setting input unit 16 includes a contact button using a membrane sheet, and detects an input operation when the user presses the contact button.
The “setting input unit 16” corresponds to the “operation unit” in the present invention.

The setting input means 16 includes a heater up / down key 21, a menu selection key 22, a cleaning key 23, and a combination heating key 24.
The heater up / down key 21 inputs an operation related to the moving amount of the movable heater 15.
The menu selection key 22 is used to input an operation for selecting one or more preset cooking menus.
The cleaning key 23 inputs an operation for permitting the movable heater 15 to be moved from the home position when the user performs cleaning.
The combination heating key 24 inputs a start operation of cooking (combination heating) using both high-frequency dielectric heating and heater heating.

FIG. 9 is a control block diagram of the cooking device showing the first embodiment of the present invention.
As shown in FIG. 9, the operation input from the setting input unit 16, the detection result of the temperature detection unit 9, and the detection result of the open / close detection switch 60 are input to the control unit 100.
The control means 100 controls the high-frequency oscillator 10, the antenna motor 12, the turntable motor 53, the movable heater 15, the glass tube heater 30, the door lock 27, the heater drive motor 43, and the notification means 17, respectively.
The storage unit 110 stores information on one or more cooking menus and information on the position of the movable heater 15 corresponding to the cooking menus.
As information about the position, for example, information on the height of the movable heater 15 from the bottom surface of the heating chamber 3 is stored.
Note that the position information is not limited to this, and any information that can identify the position of the movable heater 15 such as the distance from the top surface of the heating chamber 3, the amount of movement of the rack 41, and the amount of rotation of the heater drive motor 43 can be specified. Good.
Further, the storage unit 110 stores in advance information related to a predetermined area of the moving area of the movable heater 15.

The control unit 100 drives the heater drive motor 43 by an input operation from the setting input unit 16 to move the movable heater 15 to a position corresponding to the input movement amount.
The control unit 100 refers to the information in the storage unit 110 by an operation described later, and controls the heater drive motor 43 so as to move the movable heater 15 to a specific position or range.

Here, the predetermined area stored in advance in the storage unit 110 will be described.
When microwave dielectric heating is performed by operating the high-frequency oscillator 10, as a result of the multiple reflection of the microwave reflected in the heating chamber 3, there are strong and weak portions as typified by standing waves. it can. On the other hand, since the movable heater 15 that moves in the heating chamber 3 serves as a microwave reflecting element that reflects microwaves, the electric field distribution of the microwave changes depending on the position of the movable heater 15.
For this reason, depending on the position of the movable heater 15, the standing wave distribution of the microwave may be locally concentrated, and spark and local overheating may occur.
Therefore, the range of the position of the movable heater 15 in which no spark or local overheating occurs in the heating chamber 3 when the high-frequency oscillator 10 is operated at least in a state where the object to be heated 2 is not accommodated in the heating chamber 3. Is obtained by actual measurement or calculation, for example, and stored in advance as a predetermined area.
It should be noted that at least the heated object 2 is not housed in the heating chamber 3 depending on the heated object 2 (including the cooking container etc.) regardless of the position of the movable heater 15 due to spark or local overheating. This is because it may occur.

  Next, the operation of the first embodiment will be described.

FIG. 10 is a flowchart of the cooking procedure of the heating cooker showing Embodiment 1 of the present invention.
Hereinafter, a description will be given based on each step of FIG.

(S101)
The user opens the door 4, installs the heated object 2 to be cooked in the heating chamber 3, and then closes the door 4.
The object to be heated 2 is placed on the dielectric plate 7, the turntable 50, or the separately prepared square plate 5.
When the square dish 5 is installed, the square dish 5 is installed so that the flange of the square dish 5 is hung on the square dish rail 47 configured in the heating chamber 3.
In addition, this step S101 is abbreviate | omitted when selecting preheating mode (after-mentioned) as a cooking menu.

(S102)
Next, the user operates the setting input means 16 to select a heating type and a cooking menu.
The heating type is, for example, any one of microwave heating by the high frequency oscillator 10, heater heating by the movable heater 15 and the lower heater 14, or a combination heating of both.
The cooking menu is one or more cooking contents (cooking types) set in advance.
The user operates the menu selection key 22 to select desired cooking contents from one or a plurality of cooking menus. In addition, you may make it select and set a heating classification, heating time, and preset temperature, without selecting a cooking menu.

(S103)
The control unit 100 determines whether or not an operation for selecting a cooking menu has been input from the menu selection key 22 of the setting input unit 16.
If the menu selection key 22 is not operated, the process proceeds to step S105.

(S104)
When it is determined in step S102 that an operation for selecting a cooking menu has been input from the setting input unit 16, the control unit 100 refers to the storage unit 110 and acquires information regarding the position corresponding to the selected cooking menu. .
And the control means 100 drives the heater drive motor 43 according to the information regarding the acquired position. The driving force of the heater drive motor 43 is transmitted from the pinion 42 to the rack 41, and the movable heater 15 is moved in the vertical direction.
Thereby, the movable heater 15 moves to a position corresponding to the selected cooking menu.

For example, in the storage unit 110, when a four-cut toast that is the object to be heated 2 is placed on the square dish 5 as the position of the movable heater 15 corresponding to the cooking menu “cut four toast”, Information on a position where the movable heater 15 is brought as close as possible to the vicinity of the object to be heated 2 is stored.
When “4 pieces of toast” is selected as the cooking menu, the control means 100 places the movable heater 15 at a position close to the case where the 4 pieces of toast is placed according to the information in the storage means 110. Move.
Thus, in the case of cooking where the object to be heated 2 is thin and is baked with high heating power in a short time, the movable heater 15 is moved to the vicinity of the object to be heated 2.

Further, for example, the storage unit 110 stores information on a predetermined position close to the top surface in the heating chamber 3 as the position of the movable heater 15 corresponding to “roast beef” as the cooking menu.
When “roast beef” is selected as the cooking menu, the control unit 100 moves the movable heater 15 to a predetermined position close to the top surface in the heating chamber 3 according to the information in the storage unit 110.
Thus, in the case of cooking in which the object to be heated 2 has a thickness like a roast beef and is heated uniformly over time and baked evenly as much as possible, the movable heater 15 is placed at a high position in the heating chamber 3. Move.

In addition, for example, the storage unit 110 stores a “preheating mode” in which the temperature in the heating chamber 3 is increased without storing the article to be heated 2 as a cooking menu. As the position of the movable heater 15 corresponding to this “preheating mode”, information of a position below the approximate center of the heating chamber 3 is stored. For example, information on the lowest position of the moving area of the movable heater 15 is stored.
When the “preheating mode” is selected as the cooking menu, the control unit 100 moves the movable heater 15 to the lowest position of the movable region of the heating chamber 3 according to the information in the storage unit 110.
Thus, when the movable heater 15 approaches the bottom surface of the heating chamber 3, the dielectric plate 7 having a large heat capacity can be easily heated, and the hot air can also be heated by convection moving to the upper portion. The entire interior of the chamber 3 can be heated, and the preheating time can be shortened.

(S105)
Next, if necessary, the user operates the heater up / down key 21 of the setting input means 16 to input an operation relating to the moving amount of the movable heater 15.
The control unit 100 determines whether an operation related to the moving amount of the movable heater 15 is input from the heater up / down key 21 of the setting input unit 16.
If the heater up / down key 21 is not operated, the process proceeds to step S109.

As an operation related to this movement amount, for example, the movement amount may be operated steplessly according to the time during which the upper key or lower key of the heater up / down key 21 is pressed, or each time the heater up / down key 21 is pressed. It may be operated stepwise so as to increase or subtract by a predetermined movement amount.
Note that the operation related to the movement amount is not limited to this, and any operation that specifies the position of the movable heater 15 may be used. For example, a numerical key may be provided to specify the distance from the bottom surface (or top surface) by a numerical value, or a plurality of keys that respectively specify the position of the movable heater 15 may be provided.

(S106)
When the control unit 100 determines in step S105 that an operation related to the moving amount of the movable heater 15 is input from the heater up / down key 21 of the setting input unit 16, the heater driving motor 43 is based on the input operation from the setting input unit 16. Drive. The driving force of the heater driving motor 43 is transmitted from the pinion 42 to the rack 41, and the movable heater 15 moves in the vertical direction.
Thereby, the control means 100 moves the movable heater 15 to a position corresponding to the movement amount.

In this way, the user can set an arbitrary position or preset in advance while confirming the distance between the movable heater 15 and the object to be heated 2 from the viewing window 19 and the finish according to a desired finish state of the object to be heated 2. The movable heater 15 is stopped at the position where the heating is performed to prepare for heating.
Further, after moving the movable heater 15 to a position corresponding to the cooking menu, the position of the movable heater 15 can be finely adjusted by moving the movable heater 15 by a user operation.
In addition, although this Embodiment 1 demonstrates the case where the movable heater 15 is moved before heat cooking is started, this invention is not limited to this. For example, the movable heater 15 may be moved during cooking by the movable heater 15.

In addition, when the movable heater 15 is moved in steps S <b> 104 and S <b> 106, the control unit 100 causes the notification unit 17 to notify that the movable heater 15 is moving.
In particular, when the continuous cooking is performed immediately after the movable heater 15 is once heated, the movable heater 15 is at a high temperature. In such a case, if a user's hand enters the heating chamber 3, there is a possibility that the high temperature movable heater 15 may be accidentally touched.
With the above notification, it is possible to alert the user and reduce the probability of burns to the user.

As notification that the movable heater 15 is moving, for example, “notice during heater movement” is displayed on the notification means 17.
The notification method is not limited to this. For example, notification by light such as lighting or blinking of the lamp, or notification by sound or vibration is possible.

In addition, although this Embodiment 1 demonstrates the case where it alert | reports when the movable heater 15 is moving, this invention is not limited to this.
When the movable heater 15 is not at the home position, which is the position near the top surface of the heating chamber 3, the control means 100 may cause the notification means 17 to notify that the movable heater 15 is not at the home position.
By such notification, when the movable heater 15 is in a position where it can be easily touched by the user, it is possible to alert the user and reduce the possibility that the user accidentally touches the movable heater 15. Can be made.

Further, the control means 100 may operate the door lock 27 to lock the door 4 when the movable heater 15 is moved in steps S104 and S106.
As a result, the door 4 is opened when the movable heater 15 is moving, preventing the user's hand from entering the heating chamber 3, and reducing the possibility that the user will accidentally touch the movable heater 15. be able to.
Note that the control unit 100 may operate the door lock 27 to be in the locked state when the movable heater 15 is not in the home position, which is a position near the top surface of the heating chamber 3.
Such an operation prevents the door 4 from being opened when the movable heater 15 is easily touched by the user, and reduces the possibility that the user accidentally touches the movable heater 15. .

(S107)
Next, the control unit 100 determines whether or not the position of the movable heater 15 is within a predetermined area stored in the storage unit 110.
If it is within the predetermined area, the process proceeds to step S109.

(S108)
If not within the predetermined area, the control means 100 determines whether or not the heating type or cooking menu set in step S102 performs a heating operation by the high-frequency oscillator 10.
In the case where the heating operation by the high frequency oscillator 10 is not performed, the process proceeds to step S109.
On the other hand, in the case of setting to perform the heating operation by the high-frequency oscillator 10, the control unit 100 notifies the notification unit 17 that the heating operation by the high-frequency oscillator 10 is prohibited, and returns to step S102.
At this time, the control unit 100 may notify the notification unit 17 that the position of the movable heater 15 is not in the predetermined area.

Thus, the control means 100 performs the heating operation by the high frequency oscillator 10 when the position of the movable heater 15 is in the predetermined region, and by the high frequency oscillator 10 when the position of the movable heater 15 is not within the predetermined region. Do not perform heating operation.
Thereby, as a result of the multiple reflection of the microwaves reflected from the inner wall of the heating chamber 3 and the movable heater 15, it is possible to prevent the occurrence of sparks and local overheating in the heating chamber 3.
Further, in the heating by the movable heater 15 and the lower heater 14, it is possible to perform a heating operation regardless of the position of the movable heater 15.

(S109)
Next, the user operates the setting input means 16 to set the temperature (end temperature) of the object 2 to be cooked, the cooking time (end time), etc., and heat it with the start key or the like. Perform an operation to start cooking.
The end temperature, the end time, etc. may be set in step S102.

(S110)
The control unit 100 drives any or all of the movable heater 15, the glass tube heater 30 of the lower heater 14, and the high-frequency oscillator 10 based on an input operation from the setting input unit 16.
Moreover, the control means 100 drives the door lock 27 so that the door 4 is not opened during the heating operation, thereby bringing the door 4 into the locked state.
The door 4 may be locked by operating the setting input unit 16.

(S111)
The control means 100 acquires the temperature detection result of the temperature detection means 9, and determines whether or not the detected temperature has exceeded the target temperature for finishing cooking (end temperature) input in step S109.
If it is determined that the end temperature has been exceeded, the process proceeds to step S113.

(S112)
When determining in step S111 that the end temperature has not been exceeded, the control means 100 determines whether or not the heating time has reached the end time or more.
If the heating time is less than the end time, the process returns to step S111 and heating is continued.
On the other hand, when the heating time is equal to or longer than the end time, the process proceeds to step S113.
That is, when the temperature of the article to be heated 2 reaches the end temperature, or when the heating time reaches the end time, the process proceeds to step S113.

(S113)
The control means 100 stops energization to the heating means being driven among the movable heater 15, the glass tube heater 30 of the lower heater 14, and the high frequency oscillator 10.

(S114)
Next, the control unit 100 drives the heater drive motor 43 to move the movable heater 15 to the home position, which is a position near the top surface of the heating chamber 3.
Thereby, when the user opens the heating chamber 3 and takes out the article 2 to be heated, the movable heater 15 touches the user's hand because the movable heater 15 is located at the home position on the top surface in the heating chamber 3. The possibility can be reduced.
Further, as shown in FIG. 2, since the heater housing step 39 is formed on the top surface of the heating chamber 3, the movable heater 15 is housed in a position recessed from the opening of the top surface of the heating chamber 3, and the user's The possibility of touching the hand can be further reduced.

  In step S114 as well as in steps S104 and S106, a notification that the movable heater 15 is moving is given, and the door 4 is locked.

(S115)
The control means 100 operates the door lock 27 to bring the door 4 into the released state.

(S116)
The user opens the door 4, takes out the article 2 to be heated from the heating chamber 3, and ends the cooking procedure.
When the preheating mode is selected as the cooking menu, the user opens the door 4, installs the heated object 2 to be cooked in the heating chamber 3, closes the door 4, and performs desired heating. Make it.

In any of the above steps, the control means 100 may move the movable heater 15 to the home position when the open / close detection switch 60 detects the open state of the door 4.
Thereby, for example, when the door 4 is opened before heating is started, or when the door 4 is opened for some reason during heating, the movable heater 15 can be immediately moved to the home position, and the user can move by mistake. The possibility of touching the heater 15 can be reduced.

  In addition, in this Embodiment 1, although the movement of the movable heater 15 according to selection of a cooking menu and the movement of the movable heater 15 according to operation of the heater up / down key 21 were demonstrated was demonstrated, The present invention is not limited to this, and only one of them may be performed.

  In the first embodiment, it is determined whether or not the movable heater 15 is in a predetermined region before the heating operation by the high-frequency oscillator 10 is performed. However, the present invention is not limited to this. For example, during the heating operation by the high-frequency oscillator 10, it is always determined whether or not the position of the movable heater 15 is in a predetermined area, and the operation of the high-frequency oscillator 10 is stopped when it deviates from the predetermined area. You may make it let it.

As described above, in the present embodiment, the storage unit 110 that stores in advance information on a predetermined region of the moving region of the movable heater 15 is provided, and the control unit 100 includes the position of the movable heater 15 within the predetermined region. When the position of the movable heater 15 is not within a predetermined region, the heating operation by the high-frequency oscillator 10 is not performed.
For this reason, the movable heater 15 is positioned in a predetermined region during the heating operation by the high-frequency oscillator 10, and the microwave reflected on the inner wall of the heating chamber 3 and the movable heater 15 is subjected to multiple reflection. It is possible to prevent the occurrence of sparks and local overheating.
Further, in the heating by the movable heater 15 and the lower heater 14, it is possible to perform a heating operation regardless of the position of the movable heater 15.
Further, when the movable heater 15 is in a predetermined region, microwave heating by the high frequency oscillator 10 can be performed. Therefore, the heating operation by the movable heater 15 and the high-frequency oscillator 10 can be performed, the user's arbitrary finish can be adjusted, and the cooking fun can be produced.

Further, the predetermined region is a movable heater in which no spark or local overheating occurs in the heating chamber 3 when the high-frequency oscillator 10 is operated in a state where at least the object to be heated 2 is not stored in the heating chamber 3. A range of 15 positions.
For this reason, generation | occurrence | production of the spark in the heating chamber 3 and local overheating can be prevented.

Further, the control unit 100 controls the driving unit based on an input operation from the setting input unit 16, moves the movable heater 15 to a position corresponding to the movement amount, and performs a heating operation by the movable heater 15.
For this reason, when heating by the movable heater 15 is performed, the distance between the article to be heated 2 and the movable heater 15 can be arbitrarily set, and a fine finish according to the user's preference can be provided.

The storage unit 110 stores information on one or a plurality of cooking menus and the position of the movable heater 15 corresponding to the cooking menu, and the control unit 100 moves the movable heater to a position corresponding to the selected cooking menu. 15 is moved.
For this reason, the cooking device which can set the movement position of a heater automatically according to the cooking content is obtained.

In addition, when the movable heater 15 is moved, the control unit 100 operates the door lock 27 to bring it into the locked state.
For this reason, when the movable heater 15 is moving, the door 4 is opened and the user's hand is prevented from entering the heating chamber 3, thereby reducing the possibility that the user accidentally touches the movable heater 15. be able to.

Embodiment 2. FIG.
In the second embodiment, a mode in which the heating operation by the high-frequency oscillator 10 is performed while moving the movable heater 15 in the vertical direction within a predetermined region to facilitate uniform heating by the microwave will be described.

The configuration of the second embodiment is the same as that of the first embodiment, and the same parts are denoted by the same reference numerals.
In the following operation, a combination heating cooking procedure for performing a heating operation (second cooking step) by the movable heater 15 after a heating operation (first cooking step) by the high-frequency oscillator 10 will be described.
The “combination heating” corresponds to the “continuous cooking mode” of the present invention.

FIG. 11: is a flowchart of the cooking procedure of the heating cooker which shows Embodiment 2 of this invention.
FIG. 12 is a schematic diagram for explaining the vertical movement of the movable heater of the cooking device showing the second embodiment of the present invention.
Hereinafter, based on each step of FIG. 11, it demonstrates, referring FIG.

(S201)
The user opens the door 4, installs the heated object 2 to be cooked in the heating chamber 3, and then closes the door 4.
The object to be heated 2 is placed on the dielectric plate 7, the turntable 50, or the separately prepared square plate 5.
When the square dish 5 is installed, the square dish 5 is installed so that the flange of the square dish 5 is hung on the square dish rail 47 configured in the heating chamber 3.

(S202)
Next, the user operates the setting input means 16 to select a heating type and a cooking menu.
The heating type is, for example, any one of microwave heating by the high frequency oscillator 10, heater heating by the movable heater 15 and the lower heater 14, or a combination heating of both.
The cooking menu is one or more cooking contents (cooking types) set in advance.
The user selects the combination heating key 24 when performing combination heating.
Further, the menu selection key 22 is operated to select desired cooking contents from one or a plurality of cooking menus. In addition, you may make it select and set a heating classification, heating time, and preset temperature, without selecting a cooking menu.

(S203)
Next, the user operates the setting input means 16, the temperature (end temperature) of the object to be heated 2 that is the target of the end of cooking, the temperature that shifts from microwave heating to heater heating (target temperature), cooking Set time (end time), etc.
These settings may be set in advance according to the cooking menu.
The user performs an operation to start cooking with a start key or the like.

(S204)
The control unit 100 operates the high-frequency oscillator 10 based on an input operation from the setting input unit 16 and starts microwave heating.
The microwave oscillated by the high-frequency oscillator 10 is propagated into the heating chamber 3 and dielectric heating is performed.
Moreover, the control means 100 drives the door lock 27 so that the door 4 is not opened during the heating operation, thereby bringing the door 4 into the locked state.
The door 4 may be locked by operating the setting input unit 16.

(S205)
The control unit 100 acquires information on a predetermined area stored in the storage unit 110, and moves (moves back and forth) the movable heater 15 in the predetermined area.
That is, the heating operation by the high-frequency oscillator 10 is performed while moving the movable heater 15 in the vertical direction within a predetermined region.

For example, as shown in FIG. 12, when the predetermined region has a height A to B, the control means 100 reciprocates the movable heater 15 up and down within the range of the height A to B.
Thereby, the electric field distribution of the microwave changes depending on the position of the movable heater 15, and compared with the case where the movable heater 15 is fixed, it is difficult to form a portion where the temperature of the article to be heated 2 is high and low. Uneven heating can be reduced.
Further, since the movable heater 15 is moved within a predetermined area, even if the movable heater 15 is moved while the high-frequency oscillator 10 is operated, the occurrence of sparks and local overheating in the heating chamber 3 is prevented. be able to.

(S206)
Next, the control means 100 acquires the temperature detection result of the temperature detection means 9, and determines whether or not the detected temperature exceeds the target temperature.
If the target temperature is not exceeded, step S205 is repeated.
On the other hand, if it is determined that the target temperature has been exceeded, the process proceeds to step S207, and the process proceeds to a heating operation by the movable heater 15 that is the second cooking step.

The target temperature may be input in step S203, or the temperature corresponding to the type of cooking or the like may be stored in advance in the storage unit 110 for each cooking menu.
For example, when the end temperature is 100 ° C., an appropriate temperature estimated from the finished state is stored, for example, the target temperature is stopped at 60 ° C. in consideration of the temperature increase in the second cooking step. By storing and setting in the means 110 in advance, a good finished state can be obtained.
The “target temperature” corresponds to the “predetermined temperature” in the present invention.

(S207)
The control unit 100 stops the operation of the high frequency oscillator 10.
In addition, the control unit 100 refers to the storage unit 110 and acquires information regarding the position of the movable heater 15 according to the cooking menu. And the control means 100 drives the heater drive motor 43 according to the information regarding the acquired position, and moves the movable heater 15.

Here, the position of the movable heater 15 can be set at an arbitrary position within the moving region of the movable heater 15.
For example, as shown in FIG. 12, the control means 100 moves the movable heater 15 to a position of a height C that is outside a predetermined range.
Thus, when cooking with the movable heater 15, it is possible to increase the deliciousness by, for example, putting a burnt closer by being closer to the heated object 2.

(S208)
The control means 100 drives the movable heater 15 and the lower heater 14 to start the heating operation by the heater, which is the second cooking step.

(S209)
The control unit 100 acquires the temperature detection result of the temperature detection unit 9, and determines whether or not the detected temperature exceeds the end temperature input in step S203.
If it is determined that the end temperature has not been exceeded, step S209 is repeated and heating is continued.

(S210)
On the other hand, when it is determined that the end temperature has been exceeded, the control unit 100 stops the heating operation of the movable heater 15 and the lower heater 14.

(S211)
Next, the control unit 100 drives the heater drive motor 43 to move the movable heater 15 to the home position, which is a position near the top surface of the heating chamber 3.

(S212)
The control means 100 operates the door lock 27 to bring the door 4 into the released state.

(S213)
The user opens the door 4, takes out the article 2 to be heated from the heating chamber 3, and ends the cooking procedure.

  In steps S206 and S209, the transition to the second cooking step and the end of cooking are determined based on the detected temperature, but the present invention is not limited to this. For example, the transition to the second step or the end of cooking may be determined according to the end time set in step S203, the time set in advance according to the cooking menu, or the like.

  In the second embodiment, the case where the heating operation by the movable heater 15 is performed after the heating operation by the high-frequency oscillator 10 has been described, but the present invention is not limited to this. For example, in the first cooking step, the heating by the movable heater 15 and the heating by the high-frequency oscillator 10 may be simultaneously performed while the movable heater 15 is reciprocated within a predetermined range.

  In addition, in this Embodiment 2, although the case of the combination heating which performs a 2nd cooking process after a 1st cooking process was demonstrated, this invention is not limited to this. For example, you may make it perform only a 1st cooking process. Even in such an operation, the electric field distribution of the microwave changes, so that uneven heating can be reduced.

As described above, in the present embodiment, the control unit 100 performs the heating operation by the high-frequency oscillator 10 while moving the movable heater 15 in the vertical direction within a predetermined region.
For this reason, the electric field distribution of the microwave changes depending on the position of the movable heater 15, and compared with the case where the movable heater 15 is fixed, it is difficult to form a portion where the temperature of the article to be heated 2 is high and low. Uneven heating can be reduced. Therefore, the heating by the microwave can be easily made uniform. In particular, when the object to be heated 2 is a large object, this effect is remarkable.
Further, since the movable heater 15 is moved within a predetermined area, even if the movable heater 15 is moved while the high-frequency oscillator 10 is operated, the occurrence of sparks and local overheating in the heating chamber 3 is prevented. be able to.
In addition, the microwave irradiation state can be changed, and the microwave can be efficiently guided into the heating chamber 3 to improve the heating efficiency of the article 2 to be heated.
In addition, it is possible to reduce the probability of occurrence of problems such as self-heating of the high-frequency oscillator 10 as compared with the case where the movable heater 15 is fixed.

The storage means 110 stores a continuous cooking mode having a first cooking process for operating the high-frequency oscillator 10 and a second cooking process for operating the movable heater 15 as a cooking menu, and the first cooking process. The position of the movable heater 15 corresponding to is a position in a predetermined region, and the position of the movable heater 15 corresponding to the second cooking step is an arbitrary position in the moving region of the movable heater 15.
Therefore, after the first cooking step in which microwave heating is performed while moving the movable heater 15 that is the microwave reflecting element, the second cooking is performed in which the movable heater 15 is moved to a position corresponding to the object to be heated 2 to heat the heater. A process can be performed and it becomes possible to heat the inside of the to-be-heated material 2 in order of the surface. Therefore, the finish of cooking, especially the finish which gives a crisp feeling to the surface of the article to be heated 2 can be made possible.

Further, according to the second embodiment, microwave dielectric heating that exhibits good characteristics for internal heating of the object to be heated 2 (food, etc.) and radiation and heat transfer from the outside of the object to be heated 2 (food, etc.) Thus, both the heater heating and heating can be performed, and the finishing of cooking can be improved.
In particular, by facilitating the heat transfer from the inside of the food to the food surface by facilitating the heating of the inside of the food in the first cooking process, the food surface by radiation or heat transfer from the atmosphere as the second cooking process It becomes possible to give the effect of skipping moisture by heating, and it is easier to exert the effect in cooking with a small moisture content.

Embodiment 3 FIG.
In the third embodiment, the movable heater 15 is configured so that the microwave standing wave distribution is concentrated at an arbitrary position in the heating chamber 3 or the microwave standing wave distribution is diffused in the heating chamber 3. A mode in which the heating is performed by moving the microwaves will be described.

The storage means 110 according to the third embodiment is movable in a predetermined region so that the microwave standing wave distribution is concentrated at an arbitrary position in the heating chamber 3 when the high-frequency oscillator 10 is operated. One or a plurality of information on the position of the heater 15 and information on the position of the movable heater 15 that diffuses the standing wave distribution of the microwave in the heating chamber 3 are stored.
In addition, the position where the standing wave distribution of the microwave is concentrated and the position where the microwave is diffused are obtained by, for example, actual measurement or calculation.
Other configurations are the same as those in the first or second embodiment, and the same parts are denoted by the same reference numerals.

FIG. 13: is a flowchart of the cooking procedure of the heating cooker which shows Embodiment 3 of this invention.
Hereinafter, based on each step of FIG. 13, it demonstrates centering on difference with the said Embodiment 1,2.
In the following operation, a combination heating cooking procedure for performing a heating operation (second cooking step) by the movable heater 15 after a heating operation (first cooking step) by the high-frequency oscillator 10 will be described.

(S301, S302)
Similar to steps S <b> 201 and S <b> 202, the user installs the article to be heated 2 in the heating chamber 3, operates the setting input unit 16, and selects the combination heating key 24.

(S303)
The control unit 100 refers to the storage unit 110 and is in a predetermined region, and the position of the movable heater 15 that concentrates the microwave standing wave distribution, or the movable heater that diffuses the microwave standing wave distribution. Any one of the information on the 15 positions is selected, and the information is acquired. The selection here may be, for example, in accordance with the cooking menu set in step S302, or may be set by a user's operation separately.
And the control means 100 drives the heater drive motor 43 according to the information regarding the acquired position. The driving force of the heater drive motor 43 is transmitted from the pinion 42 to the rack 41, and the movable heater 15 is moved in the vertical direction.
Thereby, the movable heater 15 is located within a predetermined region at a position of the movable heater 15 that concentrates the microwave standing wave distribution or a position of the movable heater 15 that diffuses the microwave standing wave distribution. Moving.

(S304, 305)
Similar to steps S203 and S204, the user performs an operation of starting cooking after setting the end temperature, the end time, and the like. The control means 100 operates the high frequency oscillator 10 to put the door 4 in a locked state.

(S306)
Next, the control means 100 determines whether or not the heating operation time by the high frequency oscillator 10 has exceeded the target time.
If the target time has not been exceeded, this step S306 is repeated and heating is continued.
On the other hand, if it is determined that the target time has been exceeded, the process proceeds to step S307, and the process proceeds to a heating operation by the movable heater 15 that is the second cooking step.

The target time may be input in step S304, or the time corresponding to the type of cooking or the like may be stored in advance in the storage unit 110 for each cooking menu.
The “target time” corresponds to the “predetermined time” in the present invention.

(S307)
The control unit 100 stops the operation of the high frequency oscillator 10.
In addition, the control unit 100 refers to the storage unit 110 and acquires information regarding the position of the movable heater 15 according to the cooking menu. And the control means 100 drives the heater drive motor 43 according to the information regarding the acquired position, and moves the movable heater 15.

Here, the position of the movable heater 15 can be set at an arbitrary position within the moving region of the movable heater 15.
Thus, when cooking with the movable heater 15, it is possible to increase the deliciousness by, for example, putting a burnt closer by being closer to the heated object 2.

(S308)
The control means 100 drives the movable heater 15 and the lower heater 14 to start the heating operation by the heater, which is the second cooking step.

(S309)
Next, the control means 100 determines whether or not the heating operation time by the movable heater 15 has exceeded the end time.
If the end time has not been exceeded, this step S309 is repeated and heating is continued.
On the other hand, if it is determined that the end time has been exceeded, the process proceeds to step S310.

(S310-S313)
The heating operation is stopped by the same operation as in steps S210 to S213, the movable heater 15 is moved to the home position, and the door 4 is unlocked. And a user takes out the to-be-heated material 2, and complete | finishes a cooking procedure.

  In steps S306 and S309, the transition to the second cooking step and the end of cooking are determined based on the elapsed time, but the present invention is not limited to this. For example, the transition determination to the second step or the end of cooking may be made according to the end temperature set in step S304, the temperature set in advance according to the cooking menu, or the like.

  In addition, in this Embodiment 3, although the case of the combination heating which performs a 2nd cooking process after a 1st cooking process was demonstrated, this invention is not limited to this. For example, you may make it perform only a 1st cooking process. Even with such an operation, it is possible to concentrate or diffuse the standing wave distribution of microwaves.

As described above, in the present embodiment, the storage unit 110 has a high-frequency standing wave distribution at an arbitrary position in the heating chamber 3 when the high-frequency oscillator 10 is operated in a predetermined region. One or more pieces of information regarding the position of the movable heater 15 to be concentrated or the position of the movable heater 15 diffusing the high-frequency standing wave distribution in the heating chamber 3 are stored, and the control unit 100 is stored in the storage unit 110. The movable heater 15 is moved to any one of the positions, and the heating operation by the high frequency oscillator 10 is performed.
For this reason, the standing wave distribution of the microwave can be concentrated at an arbitrary position in the heating chamber 3 by utilizing the change in the reflection state of the microwave depending on the position of the movable heater 15. It becomes possible to concentrate and heat an arbitrary position.
Moreover, the standing wave distribution of the microwave can be diffused in the heating chamber 3, and the heating unevenness of the article to be heated 2 can be reduced.
Moreover, by arranging the movable heater 15 in a predetermined range, it is possible to efficiently introduce a high frequency into the heating chamber 3 and improve the heating efficiency of the article 2 to be heated. It is possible to reduce the probability of occurrence.

  Further, when heating by the movable heater 15 is performed without operating the high-frequency oscillator 10, the position of the movable heater 15 can be set at an arbitrary position within the moving region of the movable heater 15. Therefore, when cooking with the movable heater 15, it is possible to improve the deliciousness by, for example, putting a burnt-out by bringing it closer to the article 2 to be heated.

  Further, according to the third embodiment, microwave dielectric heating that exhibits good characteristics for internal heating of the object to be heated 2 (food, etc.) and radiation and heat transfer from the outside of the object to be heated 2 (food, etc.) Thus, both the heater heating and heating can be performed, and the finishing of cooking can be improved.

  DESCRIPTION OF SYMBOLS 1 Main body, 2 To-be-heated object, 3 Heating chamber, 4 Door, 5 Square plate, 6 Operation panel, 7 Dielectric board, 8 Waveguide, 9 Temperature detection means, 10 High frequency oscillator, 11 Antenna, 12 Antenna motor, 13 Antenna room, 14 Lower heater, 15 Movable heater, 16 Setting input means, 17 Notification means, 19 Viewing window, 21 Heater up / down key, 22 Menu selection key, 23 Cleaning key, 24 Combination heating key, 27 Door lock, 30 Glass tube Heater, 31 Reflector plate, 32 Bottom plate, 38 Bottom convex portion, 39 Heater storage step, 40 Heater drive metal plate, 41 Rack, 42 Pinion, 43 Heater drive motor, 44 insulator, 45 Heater choke, 46 Heater cover, 47 Square plate Rail, 50 turntable, 51 Turntable support base, 52 Turntable rotation axis 53 the turntable motor, 54 a roller, 60 close detection switch, 100 control unit, 110 storage unit.

Claims (10)

A heating chamber for storing an object to be heated;
A high frequency oscillator that oscillates a high frequency for heating the object to be heated;
A waveguide connected to the heating chamber and guiding a high frequency oscillated from the high-frequency oscillator to the heating chamber;
A movable heater disposed in the heating chamber;
Heater support means for supporting the movable heater;
Driving means for driving the heater support means in the vertical direction and moving the movable heater in the vertical direction;
Control means for controlling heating operation of the high-frequency oscillator and the movable heater, and the driving means;
Storage means in which information related to a predetermined area of the moving area of the movable heater is stored in advance,
The control means includes
When the position of the movable heater is within the predetermined region, the heating operation by the high-frequency oscillator is performed,
When the position of the movable heater is not within the predetermined region, the heating operation by the high-frequency oscillator is not performed. The control means includes
The cooking device according to claim 1, wherein the heating operation by the high-frequency oscillator is performed while moving the movable heater in the vertical direction within the predetermined region. The storage means
When the high frequency oscillator is operated within the predetermined region, the position of the movable heater that concentrates the high frequency standing wave distribution at an arbitrary position in the heating chamber, and the high frequency in the heating chamber At least one of the information on the position of the movable heater that diffuses the standing wave distribution is stored in one or more,
The control means includes
Moving the movable heater to any of the positions stored in the storage means;
The cooking device according to claim 1 or 2, wherein a heating operation is performed by the high-frequency oscillator. Comprising an operation means for inputting an operation relating to a moving amount of the movable heater;
The control means includes
Controlling the driving means based on an input operation from the operating means, and moving the movable heater to a position corresponding to the movement amount;
The heating cooker according to any one of claims 1 to 3, wherein a heating operation is performed by the movable heater. The storage means
Information about one or more cooking menus and the position of the movable heater according to the cooking menus is stored;
The control means includes
The cooking device according to any one of claims 1 to 4, wherein the movable heater is moved to the position corresponding to the selected cooking menu. The storage means
As the cooking menu, a continuous cooking mode having a first cooking step for operating the high-frequency oscillator and a second cooking step for operating the movable heater is stored,
The position of the movable heater corresponding to the first cooking step is a position in the predetermined region;
The cooking device according to claim 5, wherein the position of the movable heater corresponding to the second cooking step is an arbitrary position within a moving region of the movable heater. Temperature detecting means for detecting the temperature in the heating chamber,
The control means includes
The cooking device according to claim 6, wherein, in the first cooking process of the continuous cooking mode, when the temperature in the heating chamber exceeds a predetermined temperature, the process proceeds to the second cooking process. The control means includes
7. The cooking according to claim 6, wherein, in the first cooking step of the continuous cooking mode, when the heating operation time by the high-frequency oscillator exceeds a predetermined time, the cooking step moves to the second cooking step. vessel. A door for opening and closing the opening of the heating chamber;
A door lock that switches between a locked state that maintains the door in a closed state and a release state that allows the door to be opened and closed;
The control means includes
The cooking device according to any one of claims 1 to 8, wherein when the movable heater is moved, the door lock is operated to be in a locked state. The predetermined area is:
A range of the position of the movable heater in which no spark or local overheating occurs in the heating chamber when the high-frequency oscillator is operated at least in a state where an object to be heated is not stored in the heating chamber. The cooking device according to any one of claims 1 to 9.