JP3402104B2 - Cooking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature detector for detecting the temperature of an object without contact.

[0002]

2. Description of the Related Art A conventional temperature detector of this type has been disclosed in Japanese Patent Laid-Open No.
What was shown in 2011137 gazette was general. Hereinafter, description will be given with reference to FIG. FIG. 10 is a block diagram of a conventional cooking device. Cooking room 1
There is a turntable 3 on which the food 2 is placed, and the food 2 is heated by a magnetron 4, which is a cooking means. Reference numeral 5 is a food temperature detecting means in which a plurality of infrared sensors are arranged in a one-dimensional array, and is equally divided so as to cover the radial portion of the rotary table 3 (5 divisions in the figure), and the temperature in each region is measured in parallel at the same time. It is a thing. The food temperature detecting means 5 is fixed near the ceiling surface of the cooking chamber 1 located above the midpoint between the center point and the end point of the rotating table 3, and the food 2, the rotating table 3 or the cooking chamber is opened through the opening window. The thermal energy radiated from the wall surface of No. 1 is independently detected for each divided area in a non-contact manner and converted into temperature. Further, while the food 2 is being cooked by the cooking means 4, the turntable 3 continues to rotate in a fixed direction in a fixed cycle.
Each time the turntable 3 advances by a certain angle (that is, every certain time)
The food temperature detecting means 5 detects the temperature of each area.

Reference numeral 6 denotes a determination means which stores temperature information for each area transmitted from the food temperature detection means 7 in correspondence with the rotation position of the rotary table 3 and stores one screen for each rotation of the rotary table 3. Treated as 2D thermal image information, extract food 2, food 2
Of uneven heating is determined. The control means 7 controls the cooking means 4 based on the output of the determination means 6.

A second conventional example shown in the publication is shown in FIG.
This will be described using 1. FIG. 11 is a configuration block diagram of a second conventional cooking device. The difference from the above-mentioned first conventional example is that the food temperature detecting means 5 is composed of an infrared sensor having one element, and the driving means 8 for changing the temperature detection position is connected to the food temperature detecting means 5. The point is that the two-dimensional thermal image information is obtained by moving the temperature detecting means 5 so as to cross the food 2 and reciprocally scanning. The driving means 8 is composed of, for example, a stepping motor, and is connected to the food temperature detecting means 5 via a timing belt.

The food temperature detection means 5 is mounted near the ceiling surface of the cooking chamber 1 located above the midpoint between the center point and the end point of the turntable 3 and the drive means 8 covers the radius of the turntable 3 at the temperature detection position. As described above, the thermal energy radiated from the food 2, the turntable 3 or the wall surface of the cooking chamber 1 entering the field of view through the opening window is detected non-contactly at regular intervals while reciprocally rotating by a certain angle. Convert to temperature.

[0006]

However, the above-mentioned first problem
The heating cooker shown in the conventional example has a problem that complicated work is required to match the characteristics of a plurality of infrared sensors. That is, it is generally very difficult to manufacture while controlling the characteristics of the electric output amount with respect to the incident infrared energy amount, and there is a variation of several tens% or more. Therefore, a method is provided in which an amplifier circuit that amplifies the output of the infrared sensor is provided, and the amplification factor is adjusted so that the output amount of the amplifier circuit with respect to the incident infrared energy amount is constantly managed. In the above-mentioned first conventional example, it is necessary to provide an amplifying circuit for each of the plurality of infrared sensors and adjust each of them, which involves complicated work.

In the case of the second conventional example, the infrared sensor is a single element and is advantageous in that the characteristics of the infrared sensor are matched, but there is a problem that the detection position may shift. For example, even if a pulse is output while the position of the stepping motor is managed, noise may occur other than the regular pulse, and the stepping motor may be driven out of control. Particularly when a high frequency is used as a heating source like a magnetron, it is easily affected by noise. Further, in a drive transmission mechanism such as a belt, idling may occur due to the frictional resistance, and the detection position may shift. These positional deviations do not have a great influence on each of them, but if they are used for a long period of time, these positional deviations may be piled up, and the detection position may largely deviate from the designed detection range.

[0008]

In order to solve the above problems, the present invention solves the above problems by heating means for heating food, temperature detecting means for detecting temperature in a non-contact manner, and detecting temperature distribution of the food and its surroundings. Drive control means for driving the temperature detecting means, and heating control means for controlling the heating means based on the detected temperature distribution, and the drive control means includes a distribution detection driving means for detecting the temperature distribution. A position adjustment driving means for performing position adjustment, and a switching means for switching the distribution detection driving means and the position adjustment driving means.
However, the switching means does not adjust the position while the heating means is stopped.
And configured to have a heating stop determining means for operating the Align driving means.

According to the above-mentioned invention, the temperature detection means is driven by the position alignment drive means to perform the alignment, and the temperature detection means is driven by the distribution detection drive means to detect and detect the temperature distribution of the food and its surroundings. The heating control unit controls the heating unit to heat the food based on the temperature distribution, and the switching unit switches the drive of the temperature detection unit between the alignment drive unit and the distribution detection unit, so only one temperature detection unit is required. The work of matching the characteristics is simple, and the accurate temperature distribution can be detected without causing the positional deviation of the temperature detection position.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention detects temperature detection means for detecting temperature in a non-contact manner, drive control means for driving the temperature detection means in order to detect the temperature distribution of the food and its surroundings. The heating control means controls the heating means based on the temperature distribution, and the drive control means includes a distribution detection drive means for detecting the temperature distribution, a position alignment drive means for performing alignment, and the distribution detection drive. It has a switching means for switching the positioning drive means and means, the switching
The replacement means is the position adjustment driving hand while the heating means is stopped.
It is to have a heating stop determining means for operating the stage.

Then, the temperature detection means is driven by the position alignment drive means to perform the position alignment, and the temperature detection means is driven by the distribution detection drive means to detect the temperature distribution of the food and its surroundings. Based on this, the heating control means controls the heating means to heat the food, and the switching means switches the driving of the temperature detecting means between the alignment driving means and the distribution detecting means, so that only one temperature detecting means is required to match the characteristics. Is simple, and an accurate temperature distribution can be detected without causing displacement of the temperature detection position.

Then, based on the judgment of the heating stop judging means, the switching means operates the positioning drive means while the heating means is stopped, so that the positional deviation of the temperature detection does not occur, and the temperature distribution is detected during the heating. Therefore, appropriate heating control can be performed.

Further, the heating means for heating the food is not in contact with the heating means.
Temperature detecting means for detecting the temperature with the food and its surroundings
Drive the temperature detecting means to detect the temperature distribution of
Drive control means and the heating based on the detected temperature distribution
And a heating control means for controlling the means,
The stage has a distribution detection driving means for detecting the temperature distribution,
Positioning drive means for performing alignment, and the distribution
Switching between the detection drive means and the alignment drive means
And a switching completion means , and the switching means has a heating completion judging means for operating the positioning drive means when the food heating by the heating means is completed.

Since the switching means operates the positioning drive means when the food heating is completed based on the judgment of the heating completion judging means, the positional deviation of the temperature detection is not caused by the positioning with a low frequency and the durability is improved. Can be made.

Further , it is not in contact with a heating means for heating food.
Temperature detecting means for detecting the temperature with the food and its surroundings
Drive the temperature detecting means to detect the temperature distribution of
Drive control means and the heating based on the detected temperature distribution
A heating control means for controlling the means, and the drive control means
Is a distribution detection driving means for detecting the temperature distribution, and the position
Positioning drive means for performing alignment, and the distribution detection
Switching to switch between the output drive means and the alignment drive means
And a stopper for restricting the drive range of the temperature detecting means, and the alignment drive means has a drive amount storage section for storing a predetermined drive amount for a predetermined alignment. The temperature detecting means is driven by the driving amount stored in the amount storage section to bring a part of the driving portion into contact with the stopper.

Then, since the temperature detecting means is driven by the drive amount stored in the drive amount storage section and a part of the drive portion is brought into contact with the stopper for alignment, the position can be aligned and the temperature can be detected. Does not cause misalignment.

In addition, the heating means for heating the food is not in contact with the heating means.
Temperature detecting means for detecting the temperature with the food and its surroundings
Drive the temperature detecting means to detect the temperature distribution of
Drive control means and the heating based on the detected temperature distribution
A heating control means for controlling the means, and the drive control means
Is a distribution detection driving means for detecting the temperature distribution, and the position
Positioning drive means for performing alignment, and the distribution detection
Switching to switch between the output drive means and the alignment drive means
And the position for performing the alignment is outside the drive range of the distribution detection drive means.

Since the alignment is outside the drive range of the distribution detecting means, the number of alignments can be reduced and the durability of the drive means can be improved.

Further , it is not in contact with a heating means for heating the food.
Temperature detecting means for detecting the temperature with the food and its surroundings
Drive the temperature detecting means to detect the temperature distribution of
Drive control means and the heating based on the detected temperature distribution
A heating control means for controlling the means, and the drive control means
Is a distribution detection driving means for detecting the temperature distribution, and the position
Positioning drive means for performing alignment, and the distribution detection
Switching to switch between the output drive means and the alignment drive means
There is a cooking chamber for accommodating the means and the food, and the positioning is performed at a position where the temperature detecting means does not face the cooking chamber.

Since the cooking chamber is aligned while the heating is stopped, the influence of dirt can be reduced and the reliability and durability of the temperature detecting means can be improved.

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a sectional view of the structure of Embodiment 1 of the present invention. See also FIG.
FIG. 3 is a cross-sectional view of a main part of the temperature detecting means of the embodiment. Further, FIG. 3 is an image diagram showing a driving state of the temperature detecting means of the embodiment. FIG. 4 is a block diagram of the configuration of the embodiment. FIG. 5 is a flow chart showing the operation of the embodiment. The same components as those in the conventional example are designated by the same reference numerals.

The food 2 is stored in the cooking chamber 1, and the food 2 is heated by the magnetron 4 which is a heating means. 3 is food 2,
The turntable 3 is a turntable on which the dish 9 is placed, and the turntable 3 is rotated by a turntable motor 10 at a constant cycle.
The center of rotation of the turntable motor 10 is located substantially at the center of the bottom surface of the cooking chamber 1. Reference numeral 5 is an infrared sensor for detecting the temperature in a non-contact manner by a temperature detecting means, and an opening 11 is provided on the ceiling surface of the cooking chamber 1 to secure an optical path, and a radio wave is transmitted to the outside of the cooking chamber 1 near the opening 11. A choke structure is formed to prevent leakage. Chalk structure has 2 kinds of sheet metal 1
It is composed of 2a and 12b, and 12a forms an optical path and is a cylindrical metal part having a wide opening 11 which is in close contact with the ceiling surface of the cooking chamber 1 and 12b is a box shape having a small hole 13. The sheet metal 12a is covered with the above metal parts and is in close contact with the ceiling surface of the cooking chamber 1. Infrared rays from the cooking chamber 1 are emitted to the outside from the small holes 13 by the choke structures 12a and 12b, but radio waves in the cooking chamber 1 are blocked and hardly leak to the outside. In FIG. 1, the dimension L is designed to be λ / 4, that is, the frequency is 2.4.
If it is 5 GHz, the impedance is infinite in the small hole 13 by setting it to 30 mm, and the effect of blocking the radio wave is the largest. Further, if the dimension L is halved to 15 mm, the impedance becomes infinite at the opening 11 on the ceiling surface of the cooking chamber 1, and similarly the radio wave blocking effect is large and the size can be reduced.

Reference numeral 14 is a driving means for driving the infrared sensor 5, which is constituted by a stepping motor, and reciprocally scans a range indicated by a broken line in FIG. 1 to move the temperature detection position.
The movement range of the temperature detection position linearly moves in the radial direction of the turntable 3, and a two-dimensional temperature distribution can be detected by a combination of the reciprocal scanning and the rotation of the turntable 3. A control unit 15 controls the magnetron 4 based on the two-dimensional temperature distribution obtained from the infrared sensor 5, and also controls the driving of the stepping motor 14.

The driving means 14 for reciprocally scanning the infrared sensor 5 will be described with reference to FIG. In FIG. 2, the infrared sensor 5 is of a pyroelectric type, and outputs an amount of change in the amount of infrared light that is incident, that is, an amount of change in the temperature at the field of view. The infrared sensor 5 is fixed inside the fixing member 16, and a field of view is narrowed through a lens 17 attached to the fixing member 16 to detect a temperature in a narrow range. The lens 17 is a Fresnel lens and is made of a material that transmits infrared rays. The stepping motor 14 rotates the pinion 19 and the chopper 20 with the first rotating shaft 18 as the center of rotation.

The chopper 20 has a slit and rotates while opening and closing the optical path to the infrared sensor 5. By this opening / closing operation, the infrared sensor 5 outputs an output having a correlation with the temperature difference between the chopper 20 and the field of view in the cooking chamber 1. The small gear 19 is in contact with the large gear 21, a second rotating shaft 22 is attached to the large gear 21, and the second rotating shaft 22 is rotatably attached by a receiving portion 23. Also, the second
A printed circuit board 24 is attached to the rotary shaft 22 of FIG. 3, and an electronic circuit (not shown) such as an amplification circuit is attached to the printed circuit board 24 in addition to the infrared sensor 5, the switch 25. These are housed in a metal case 27 having a small hole 26 at a position that serves as an infrared light path, covered with a metal lid 28, and fixed to the ceiling surface of the cooking chamber 1 or the choke structure 12b shown in FIG.

Further, the metal case 27 is provided with a protrusion 29, and when the switch 25 is present at the position of the protrusion 29, the position can be confirmed by pushing the switch 25 with the protrusion 29. FIG. 3 shows the positional relationship among the infrared sensor 5, the switch 25, the small hole 26 and the protrusion 29. (A) is the case where the temperature detection position is at the center of the bottom surface of the cooking chamber 1, (b) is the case where the temperature detection position is at the periphery of the bottom surface of the cooking chamber 1, that is, (a) and (b) are the temperature detection positions, respectively. The case where the position is the end point of the temperature detection range is shown, and the reciprocal scanning in this range is repeated to detect the temperature distribution on the bottom surface of the cooking chamber 1. (C) is a position further rotated in the clockwise direction from (b) at the end point of the temperature detection range, and the temperature detection position is the inner wall surface of the metal case 27 and does not face the inside of the cooking chamber 1. At this time, the switch 25 is pushed because its position overlaps with the protrusion 29. In this state (c), the infrared sensor is aligned.

The configuration of the control means 15 will be described with reference to FIG. The control means 15 includes a heating control means 30 and a drive control means 3.
It consists of 1. The heating control means 30 controls the magnetron 4 which is the heating means based on the two-dimensional temperature distribution obtained from the infrared sensor 5 which is the temperature detection means. Heating control means 30
For example, when the maximum temperature exceeds a predetermined temperature in the two-dimensional temperature distribution obtained by the infrared sensor 5, the cooking is completed and the magnetron 4 is stopped.

In this case, except for the initial stage of heating, the highest temperature is not the plate 9 or the bottom of the cooking chamber 1 but a part of the food 2. By detecting the maximum temperature of the food 2 and stopping the heating, the heating can be completed without causing partial overheating.

The drive control means 31 is the distribution detection drive means 3
2. Three kinds of driving means, that is, the positioning driving means 33 and the heating initial driving means 34, and a switching means 35 for selecting and switching one driving means from the three kinds of driving means. The distribution detection drive unit 32 is a drive unit that reciprocally scans the range between the state (a) and the state (b) shown in FIG. The position alignment drive means 33 has a switch confirmation means 36, and is a drive means for driving the switch clockwise to the state shown in FIG.
The switch confirmation means 36 confirms that the alignment has been completed by using the signal of the switch 25 as an input. The heating initial drive unit 34 is a drive unit that drives a predetermined amount in the counterclockwise direction to return from the state (c) shown in FIG. 3 to the state (b) at the start of heating.

The switching means 35 selects one of the three types of driving means and drives the stepping motor 14. The switching means 35 has a heating stop judging means 37, and the distribution detection driving means 32 drives the stepping motor 14 during heating according to the judgment of the heating stop judging means 37, and when stopped, it is driven by the alignment driving means 33 and stops. At the beginning of the transition from the state to the heating state, the heating initial drive means 34 drives. A heating start switch 38 operated by a user determines the heating start in the heating stop determination means 37, determines the heating completion based on the input from the heating control means 30, and determines whether the heating is started or stopped based on the heating start and the heating completion. To do.

A specific control operation will be described with reference to FIG. If the heating stop determination means 37 determines that the operation is stopped and the user does not press the start switch 38, the switch confirmation means 36 confirms whether the position is aligned. If the alignment has not been performed, the alignment drive means 33 sends a pulse to the stepping motor 14 to drive it until the alignment confirmation signal is input from the switch 25. During the stop, it is always checked whether the alignment confirmation signal is input, and if it is input, the stepping motor 14 is not driven. At this time, the infrared sensor 5 is stopped in the state of FIG.

When the user presses the heating start switch 38, the heating initial drive means 34 first sends a predetermined number of pulses to the stepping motor 14 up to the end point of the detection position for driving.
That is, the state shown in FIG. 3C is changed to the state shown in FIG. Then, the food 2 is heated by the magnetron 4. During heating, the stepping motor 14 is driven by the distribution detection driving means 32, and the infrared sensor 5 reciprocally scans the range from (a) to (b) in FIG. 3 to detect the temperature distribution. The heating control means 30 determines that heating is completed based on the temperature distribution, and stops heating when heating is completed. When the heating is stopped, the stepping motor is driven by the positioning driving means 33 until the switch checking means 36 inputs the positioning checking signal from the switch 25 again.

In the above description, the position where the alignment is performed is out of the range for detecting the temperature distribution, that is, not the range of (a) to (b) of FIG. , The number of times the switch 25 is pressed is reduced to ensure durability. Further, when the positioning is performed, the infrared sensor 5 is positioned so as to face the inner wall surface of the metal case 27 and not to face the cooking chamber 1, so that unnecessary stains and the like from the cooking chamber 1 can be reduced. For example, in the case of performing oven cooking in which a heater is used as the heating means other than the magnetron 4 which is the predetermined heating means, if the heating stop determination means 36 determines that the heating by the predetermined heating means is stopped, the heating of FIG. The state of (c) can be maintained and the cooking chamber 1
It is possible to reduce the adhesion of dirt from the. Oven cooking is generally heated to a high temperature in many cases, and since many splashes of fats and oils, the effect is great.

Example 2 Next, Example 2 of the present invention will be described with reference to FIGS. FIG. 6 is a cross-sectional view of the essential parts of the temperature detecting means of the second embodiment of the present invention. Further, FIG. 7 is an image diagram showing a driving state of the temperature detecting means of the embodiment. FIG. 8 is a block diagram of the configuration of the same embodiment. FIG. 9 is a flow chart showing the operation of this embodiment. The same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 6, an infrared sensor 5, an electronic circuit (not shown) such as an amplifier circuit, and an abutting portion 39 are attached to the printed circuit board 24. Further, the metal case 27 is provided with a stopper 40, and when the contact portion 39 is in contact with the stopper 40, the stepping motor is further locked or idled and the infrared sensor 5 does not move.
FIG. 7 shows the positional relationship between the infrared sensor 5, the contact portion 39, the small hole 26 and the stopper 40. (A) and (b) show the case where the temperature detection position is the end point of the temperature detection range, and the reciprocal scanning of this range is repeated to detect the temperature distribution on the bottom surface of the cooking chamber 1. (C) is a position further rotated in the clockwise direction from (b) at the end point of the temperature detection range, and the temperature detection position is the inner wall surface of the metal case 27 and does not face the inside of the cooking chamber 1. At this time, the contact portion 39 contacts the stopper 40 and cannot rotate further clockwise, and the infrared sensor is aligned in this state (c).

The structure of the control means 15 will be described with reference to FIG. The drive control means 31 is composed of three types of drive means, a distribution detection drive means 32, a position alignment drive means 33, and a heating initial drive means 34, and a switching means 35 for selecting and switching one drive means from the three types of drive means. The alignment drive means 33 is a drive means that has a drive amount storage section 41 that stores a predetermined drive amount, and drives it by a predetermined amount in the clockwise direction to the state shown in FIG. 7C. The predetermined amount stored in the drive amount storage unit 41 is equal to or larger than the drive amount required for driving from the state (a) of FIG. 7 to the state (c) of FIG. It can be stopped in the state of (c) in any state in the range of (b). The switching means 35 selects one driving means from the three kinds of driving means and drives the stepping motor 14. The switching means 35 includes a power-on determination means 42 and a heating completion determination means 43.
The power-on determination means 42 determines that the power of the entire cooking device including the control means 15 has been turned on. Control means 15
When is composed of a microcomputer program, the program starts when the power is turned on, so the beginning of the program is the power on. The heating completion judging means 43 is the heating control means 30.
It is determined that the heating state by the heating means 4 is changed to the heating stop state by the input from. The switching means 35 drives the stepping motor 14 by the positioning drive means 33 when the power is turned on and when the heating is completed based on the judgments of the power-on judgment means 42 and the heating completion judgment means 43, and during heating by the input from the heating control means 30. The distribution detection drive means 32 drives the stepping motor 14, and the heating initial drive means 34 first drives the stepping motor 14 when the stop control state is changed to the heated state by the input from the heating control means 30.

A specific control operation will be described with reference to FIG. First, when the power is turned on, the alignment drive means 3
By driving the stepping motor 14 with a predetermined number of pulses corresponding to the drive amount stored in the drive amount storage unit 41 by 3, the driving is stopped in the state of FIG. 7C. When the user presses the heating start switch 38, the heating initial drive means 34
Then, first, the stepping motor 14 is driven by sending a predetermined number of pulses to the end point of the detection position. That is, the state shown in FIG. 7C is changed to the state shown in FIG. Then, the food 2 is heated by the magnetron 4. During heating, the distribution detection drive means 32 drives the stepping motor 14, and the infrared sensor 5 reciprocally scans the range from (a) to (b) in FIG. 7 to detect the temperature distribution. The heating control means 30 determines that heating is completed based on the temperature distribution, and stops heating when heating is completed. If the heating is stopped, the stepping motor 1 is driven by the alignment drive means 33.
4 is driven by sending a predetermined number of pulses to stop in the state of FIG. 7 (c).

In the above description, the difference from the first embodiment is that the confirmation switch for alignment is not provided, and the number of parts is reduced and the configuration is simplified. Moreover, the durability is improved by minimizing the locked or idle state of the stepping motor as the alignment drive only when the power is turned on and when the heating is completed. Further, when the positioning is performed similarly to the first embodiment, the infrared sensor 5 faces the inner wall surface of the metal case 27 and does not face the cooking chamber 1, so that unnecessary stains from the cooking chamber 1 are caused. It is possible to reduce the adhesion.

[0040]

As described above, according to the present invention, the temperature detection means is driven by the position alignment drive means to perform the alignment, and the temperature detection means is driven by the distribution detection drive means to detect the temperature of the food and its surroundings. Detecting the distribution, the heating control means controls the heating means based on the detected temperature distribution to heat the food, and the switching means switches the driving of the temperature detecting means between the alignment driving means and the distribution detecting means. Only one means is required, and the work of matching the characteristics is simple, and an accurate temperature distribution can be detected without causing a positional deviation of the temperature detection position.

[0041] The heating stop determination means, based on the judgment of the pressurized heat completion determining means, since the switching means to operate the positioning drive means, positional deviation of the temperature detection is not caused, also the temperature distribution detected during the heating Therefore, appropriate heating control can be performed, and durability of the driving means can be improved.

Further, since the positioning is outside the driving range of the distribution detecting means, the number of times of positioning can be reduced, the durability of the driving means can be improved, and the positioning can be performed at a position where the cooking chamber is not exposed while heating is stopped. Therefore, the influence of dirt can be reduced and the reliability and durability of the temperature detecting means can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing the configuration of a heating cooker according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a temperature detecting means of the heating cooker.

FIG. 3 (a) is an image diagram showing a driving state of a temperature detecting means of the heating cooker, (b) is an image diagram showing a driving state of a temperature detecting means of the heating cooker, and (c) is a temperature detecting means of the heating cooker. Image diagram showing the driving state

FIG. 4 is a configuration block diagram of the heating cooker.

FIG. 5 is a flowchart showing the operation of the heating cooker.

FIG. 6 is a cross-sectional view of a main part of temperature detecting means of a heating cooker according to a second embodiment of the present invention.

FIG. 7 (a) is an image diagram showing a driving state of a temperature detecting means of the heating cooker, (b) is an image diagram showing a driving state of a temperature detecting means of the heating cooker, and (c) is a temperature detecting means of the heating cooker. Image diagram showing the driving state

FIG. 8 is a configuration block diagram of the heating cooker.

FIG. 9 is a flowchart showing the operation of the heating cooker.

FIG. 10 is a configuration block diagram of a conventional heating cooker.

FIG. 11 is a configuration block diagram of another conventional heating cooker.

[Explanation of symbols]

1 cooking room 4 Magnetron (heating means) 5 Temperature detection means 25 switch 30 Heating control means 31 Drive control means 32 distribution detection driving means 33 Positioning drive means 35 switching means 36 Switch confirmation means 37 Heating stop judging means 40 stopper 41 Drive amount storage unit 42 Power-on determination means 43 Heating completion determination means

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) F24C 7/02 330 H05B 6/68 320

Claims (5)

(57) [Claims] 1. A heating means for heating food, a temperature detecting means for detecting temperature in a non-contact manner, a drive control means for driving the temperature detecting means to detect temperature distribution of the food and its surroundings, The heating control means controls the heating means based on the detected temperature distribution, the drive control means includes a distribution detection driving means for detecting the temperature distribution, a position alignment driving means for performing position adjustment, and A distribution detection driving means and a switching means for switching between the alignment driving means, and the switching means is configured to operate while the heating means is stopped.
Includes heating stop judgment means to operate the alignment drive means
Cooker to cook. 2. A heating means for heating food and a non-contact heating means.
The temperature of the food and its surroundings.
To drive the temperature detecting means to detect the temperature distribution.
Dynamic control means and the heating means based on the detected temperature distribution
Heating control means for controlling temperature distribution, the drive control means includes a distribution detection drive means for detecting a temperature distribution, an alignment drive means for performing alignment, the distribution detection drive means and the alignment. And a switching means for switching the driving means, the switching means for heating the food by the heating means.
Judgment of heating completion by operating the alignment drive means when completed
Cooker having means . 3. A heating means for heating food and a non-contact heating means.
The temperature of the food and its surroundings.
To drive the temperature detecting means to detect the temperature distribution.
Dynamic control means and the heating means based on the detected temperature distribution
The heating control means for controlling the
Distribution detection drive means for detecting the degree distribution
Position adjustment drive means for performing the setting, and the distribution detection drive
Switching means for switching between the moving means and the alignment drive means
Has the door, a stopper for restricting the drive range of the temperature detecting means is provided, said positioning drive means has a drive amount storage unit for storing a predetermined driving amount for a predetermined alignment, the drive pressurized heat cooker that allowed contact of <br/> the stopper part of the stored drive amount by the temperature detecting means is driven to drive part of the amount storage unit. 4. A heating means for heating food and a non-contact heating means.
The temperature of the food and its surroundings.
To drive the temperature detecting means to detect the temperature distribution.
Dynamic control means and the heating means based on the detected temperature distribution
The heating control means for controlling the
Distribution detection drive means for detecting the degree distribution
Position adjustment drive means for performing the setting, and the distribution detection drive
Switching means for switching between the moving means and the alignment drive means
DOO has, in position for alignment pressurized heat cooker you outside drive range by the distribution detecting driving means. 5. A heating means for heating the food, a temperature detecting means for detecting the temperature in a non-contact manner, and a drive control means for driving the temperature detecting means to detect the temperature distribution of the food and its surroundings. The heating control means controls the heating means based on the detected temperature distribution, the drive control means includes a distribution detection driving means for detecting the temperature distribution, a position alignment driving means for performing position adjustment, and A heating cooker having a distribution detecting drive means, a switching means for switching the position adjusting drive means, and a cooking chamber for storing food, and the position adjustment is performed at a position where the temperature detecting means does not face the cooking chamber.