JP2827737B2 - High frequency heating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency heating device having an additional heating function.

[0002]

2. Description of the Related Art In general, in a high-frequency heating apparatus such as a microwave oven, when a predetermined heating menu is selected by an operation menu key, for example, either automatic or manual, a predetermined heating amount automatically or manually set correspondingly. A heating control system (cooking sequence) for heating by driving a magnetron or a heater according to a heating time and a heating pattern is employed.

[0003] In particular, in a high-frequency heating apparatus provided with a weight sensor, when a range heating setting operation is performed using the auto menu key, the weight of the object to be heated on the turntable is first detected in response to the operation. An appropriate magnetron output for microwave heating is automatically set in a predetermined heating pattern according to the detected weight, and a range according to the heating pattern within the set time according to the set magnetron output (heating amount). Heating is performed to achieve a desired finished state.

[0004]

However, in the automatic heating control system using the above-described auto menu, there is a case where the user feels that the heating is insufficient at the finishing level based on the auto menu, for example, due to the preference of each user.

Therefore, in such a case, conventionally, an appropriate additional heating time is set manually again, and the additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating. .

However, this method requires a cumbersome manual operation again, which is very inconvenient and has a problem that the original convenience of the auto menu is not utilized.

[0007] Even in the case of manual heating,
A similar problem occurs when the additional heat setting time is not appropriate.

[0008]

Means for Solving the Problems Claims 1 and 2 of the present application
The inventions described above have been made for the purpose of solving the above-mentioned conventional problems, and have the following configurations.

(1) Structure of the invention according to claim 1 The high-frequency heating apparatus according to the invention according to claim 1 comprises a heating means for heating an object to be heated by a microwave output or a heater output, and a heating time of the heating means. A high-frequency heating apparatus comprising: a heating time setting means for setting; an additional heating time setting means for setting a predetermined additional heating time after completion of heating of a predetermined cooking menu; and an operation key for operating the additional heating time setting means. In the above, after the additional heat time of the additional heat time set at the time of the first additional heat cooking by the additional heat time setting means is completed, the set additional heat time of the first additional heat cooking is set corresponding to the cooking menu. It is characterized in that a registration storage means is provided which can be registered and stored and read out at the time of the second or subsequent additional heating cooking.

(2) Structure of the invention according to claim 2 The high-frequency heating apparatus according to the invention according to claim 2 is a heating means for heating an object to be heated by microwave output or heater output, and a heating pattern of the heating means. Heating pattern setting means for setting according to the cooking menu and the finish level,
In a high-frequency heating apparatus comprising: a heating control unit that controls the heating unit with a heating pattern set by the heating pattern setting unit; a finishing level determination unit; and after completing heating of the predetermined cooking menu, the finishing level. Additional heating control means for performing additional heating of the food of the cooking menu using a part of the heating pattern of the cooking menu for which the heating has been completed according to the finishing level determined by the determination means is provided. It is assumed that.

[0011]

The high-frequency heating apparatuses according to the first and second aspects of the present invention are configured as described above, and operate as follows corresponding to the respective configurations.

(1) Operation of the Invention of Claim 1 As described above, the high-frequency heating apparatus of the invention of claim 1 has, as a basic configuration, a heating device for heating an object to be heated by microwave output or heater output. Means, and a heating time setting means for setting a heating time of the heating means, for example, when a predetermined heating cooking menu is selected by an auto menu key, the heating means corresponding to the said heating means The object to be heated is heated by being appropriately driven within a predetermined heating time set by the heating time setting means.

[0013] Further, there is provided an additional heat time setting means for setting a predetermined additional heat time after the heating of the predetermined cooking menu is completed, and an operation key for operating the additional heat time setting means. Therefore, when it is recognized that the heating is inadequate, simply by operating the operation key, it is possible to easily realize the additional heat similar to the case where the conventional manual operation is performed again.

Further, in the invention according to the first aspect of the present invention, in addition to the above-described operation due to the basic structure, the additional heat time desired by the user at the time of the first additional heat cooking set by the additional heat time setting means. After completion of the additional heating, there is provided a registration storage means for registering and storing the additional heating time set for the first additional cooking, and reading and using the additional heating time for the second and subsequent additional cooking. In each of the second and subsequent additional heat cooking operations, the user simply operates the operation key to read the user's desired additional heat time registered and stored in correspondence with the cooking menu from the registration storage means and add the additional heat time. And it is not necessary to set a new additional heat time every time.

(2) Operation of the invention according to claim 2 As described above, the high-frequency heating apparatus according to the invention according to claim 2 has, as a basic configuration, heating for heating an object to be heated by microwave output or heater output. Means, a heating pattern setting means for setting a heating pattern of the heating means according to a cooking menu and a finish level, and a heating control means for controlling the heating means with the heating pattern set by the heating pattern setting means. For example, when a predetermined heating cooking menu is selected by an auto menu key, the heating unit is driven by a predetermined heating pattern set corresponding thereto to heat the object to be heated.

Further, in this case, in the above case, the finish level determining means, and after the heating of the predetermined cooking menu is completed, according to the user-desired finish level determined by the finish level determining means. Additional heat control means for performing additional heating of the food in the cooking menu using a part of the heating pattern of the cooking menu in which the heating is completed is provided, and the main cooking heating in the predetermined cooking menu is completed. After that, when the additional heat operation is further performed, the additional heat control means appropriately performs the additional heat control using a part of the heating pattern according to the finishing level of the main cooking heating of the cooking menu up to that time. Be executed.

Therefore, in this configuration, appropriate additional heat according to the original finishing level can be performed without setting a heating pattern dedicated to additional heat or memory.

[0018]

Therefore, according to the high-frequency heating apparatus of the first aspect of the present invention, as long as the same cooking menu is set, only the first operation is required for setting the additional heating time, and the subsequent operations are not required. As a result, additional heat control can be performed as if it were a fully automatic menu, and the additional heat operation becomes very simple. According to the high-frequency heating device of the second aspect of the present invention, similar additional heat control can be realized with high accuracy in consideration of the finishing level without increasing the program and memory capacity of the microcomputer. be able to.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Configuration of Basic System) FIGS. 1 to 3 show each high-frequency heating device (microwave oven) having an additional heating function according to first to seventh embodiments of the present invention to be described later.
2 shows the configuration and operation of a common system unit.

First, FIGS. 1 and 2 show the overall structure (housing structure) of the high-frequency heating device 1. A heating chamber (storage for foods) 2 is provided inside the housing 1a. I have. At the bottom of the heating chamber 2, a turntable 3 for mounting a food is rotatably installed. A door 16 having a finder 17 is attached to the front opening 19 of the heating chamber 2 so as to be openable and closable in the vertical direction. Further, a door switch 18 is provided on the main body side corresponding to the door 16.

On the other hand, the heating chamber 2 on the front side of the housing 1a
An operation panel unit 26 for operating and controlling various functions of the high-frequency heating device is provided on the right side of the opening 19. For example, as shown in detail in FIG. 2, the operation panel section 26 includes a display section from an upper side to a lower side.
(Liquid crystal display) 34, heating time setting key for manual menu (3 for 5 minutes 27a, 1 minute 27b, 10 seconds 27c)
2 keys), manual heating keys (4 keys of raw thawing, toaster, pizza heating, porridge) 2
9, an automatic heating key group (consisting of four keys for sake can, toast, frozen toast, and rice cooker) 30, a manual menu designation key 41, and an auto menu designation key 42 are provided with appropriate operability.

As is apparent from FIG. 1, below the finder 17 of the door 16, a finishing adjustment key 37, a toast key 30c, a decompression key 30b, a warm start key 30a, a cancel key 28, A group of door keys 38, such as a heat key 47, which is particularly frequently used every day, is provided.

The display unit 3 of the operation panel unit 26
For example, when the various operation keys described above are turned on, various selection setting states are displayed on the display 4.

The operation panel section 26 and the above-mentioned door key group 38 are connected to each other. For example, as shown in FIG. 3, a control unit 20 for controlling a microwave oven and a data bus and a control bus mainly constituted by a microcomputer as shown in FIG. And input / output signals can be freely transmitted and received.

Further, as is apparent from FIG. 3, the object to be heated 40 on the cooking dish 5 placed on the turntable 3 in the heating chamber 2 is provided inside the housing 1a of the high-frequency heating device 1. A magnetron 13 for heating by radiating and absorbing microwaves, a heater 40 and a heater circuit 35 for irradiating an object to be heated in the heating chamber 2 with infrared rays as necessary, and a fan 12a for ventilation.
And a fan motor 12 are installed as shown. A turntable motor drive circuit 2 is provided between the control unit 20 and the turntable motor 4.
4, the control unit 20 and the fan motor 12
A fan motor drive circuit 25 is provided between the control unit 20 and the magnetron 13, and a magnetron drive unit 22 is provided between the control unit 20 and the magnetron 13. The turntable motor 4 is provided with a weight sensor 36, and the detected value detected by the weight sensor 36 is the amount (weight) of the food.
Used to determine Reference numeral 37 denotes a power supply circuit, which supplies a power supply voltage from the AC power supply 100 (V) to the magnetron drive unit 22, the turntable motor drive circuit 24,
It is distributed and supplied to the fan motor drive circuit 25.

While the fan 12a is used for ventilation in a stewed state, it is also used, for example, for exhausting the humidity in the refrigerator before performing the heating in the automatic "warm-up heating" continuous heating.

On the other hand, as shown in the figure, an outside air inlet 8 is formed on one side wall 31 of the housing 1a, and an exhaust port 11 is formed on the other side wall 32, and the heating chamber 2 between them is formed. Ventilation ports 9 and 10 are formed in both side walls 6 and 7 respectively. The fan 12a driven by the fan motor 12 is interposed between the outside air inlet 8 and the ventilation port 9, and the outside air introduced from the outside air inlet 8 is indicated by an arrow in the figure. As shown in the drawing, after the magnetron 13 is first cooled, the odor or steam during cooking is absorbed through the upper part of the heating chamber 2 and discharged from the exhaust port 11 side. The ventilation port 10 and the exhaust port 11
A humidity sensor 15 is provided in the middle of the duct 14 to detect humidity such as during heating, boiling, and keeping heat. ing. The output signal Vs of the humidity sensor 15 is sent to the control unit 20 via a predetermined detection unit 23.
Is input and stored. Also, T
H ₁ is a thermistor for detecting the temperature in the heating chamber 2.

The control unit 20 determines that the amount of steam emitted from the object to be heated 40 by the humidity sensor 15 at a predetermined set value Vs ₁ , for example, during automatic “warm-up” cooking.
When this is detected, the magnetron driving unit 22 is turned off to stop driving the magnetron 13. On the other hand, in the case of an auto “simmering menu” or the like, when it is detected that the object to be heated is in a boiling state, the heating output of the magnetron 13 in the subsequent stewing process is automatically adjusted according to the level. The heating output is set in accordance with the output of the weight sensor 36 in accordance with the detected humidity in the warming state after the cooking is completed, if necessary, in the warming state after completion of the cooking, if necessary, while realizing the appropriate simmering heating state in which the spillover does not occur. Is controlled more finely.

The additional heat key 4 of the door key group 38
Reference numeral 7 is used to execute the additional heat of the previous cooking menu after the heating of the automatic or manual menu is completed, as described later.

Next, the contents of the additional heat control after the completion of the automatic or manual menu cooking by the control unit 20 in each of the first to seventh embodiments of the present invention will be described in detail with reference to the corresponding flowcharts. .

(1) First Embodiment In the high-frequency heating device provided with the above-described weight sensor,
For example, when a range heating setting operation is performed using the auto menu key, the weight of the object to be heated on the turntable is first detected in accordance with the operation, and the micro heating is performed in a predetermined heating pattern according to the detected weight. Automatically set an appropriate magnetron output for wave heating, and by performing the range heating according to the heating pattern within the set time according to the set magnetron output (heating amount), a desired finished state is obtained. I have.

However, the system for detecting the weight of an object to be heated by the above-mentioned weight sensor measures the weight of the object to be heated based on the total weight of the object to be heated such as a cooking dish including the container itself. Regarding the weight of the container itself, a data map value is generally mapped to be smaller by the same weight in consideration of the standard dish weight assumed at the time of product design.

However, the cooking dishes actually used at home are not always those having the standard weight assumed at the time of the above design, and there are considerable variations.

For this reason, the magnetron output set using the map data as described above causes a considerable variation depending on the weight of the cooking dish used, and an appropriate heating amount corresponding to the net weight of the object to be heated. Setting is difficult. As a result, heating failure often occurs.

On the other hand, apart from the problem of insufficient heating due to the inaccuracy of the weight measurement as described above, there is also a case where the user feels that the heating is insufficient at the finishing level by the auto menu due to the preference of the user.

Therefore, in such a case, conventionally, an appropriate additional heating time is set by manual operation, and the additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating. .

However, this method requires a troublesome manual operation again, which is inconvenient and does not utilize the original convenience of the auto menu.

Therefore, for example, the above-described finishing adjustment key 3
The additional heat can be performed by further increasing the initial finish setting level by 7 to one rank, but once the food is taken out and eaten, the weight of the heated object itself changes. The amount of additional heat originally required must be changed accordingly.

The high-frequency heating apparatus according to the present embodiment is constructed in view of such circumstances. As shown in the flowchart of FIG. 4, the additional heating function corresponding to the weight change of the object to be heated is provided by the additional heating key. 47 is realized.

That is, first, the automatic heating cooking control (warm-up, thawing, toast, etc.) as described above is executed in step S ₁ , and when the automatic cooking is completed after the set heating time elapses, first, in step S ₂ To turn off a heating means such as a magnetron or a heater. Then, subsequently outputs W ₁ of the weight sensor 15 at step S ₃
After reading the next step S ₄ cancel key 45 in the door key group 38 described above in it is determined whether the ON operation.

As a result, if the determination is YES, all the above-described cooking condition setting states of the automatic menu heating are reset and the control is terminated as in the conventional normal control.

On the other hand, when the cancel key 45 is determined to NO without being ON operation, determine further whether the less after engaging 1 minute of the door 16 proceeds to step S ₅ (prior to the expiration) I do.

[0043] As a result, the cooking of the predetermined menu when that is once step S ₁ is YES is completed, once open the door 16, and the like eat removed object to be heated to confirm its finished state result, when a user is recognized that trying to reheat be within 1 minute after closing the door 16 placed in an object to be heated in the heating chamber again to accepted yet insufficient heating, further proceeds to step S ₆ The finishing level one step higher than the previous finishing setting level, for example, medium if weak, strong if medium, strong + α if strong, (α is the heating time for one step Alternatively, it is determined whether or not the additional heat key for executing the additional heat set to (the correction map value for increasing the heating duty) is turned on. Then, as a result, when the result is YES, after calculating the weight change [Delta] W by the user ate reads the output W ₂ of the weight sensor 36 at step S ₇ again _{(ΔW = W 1 -W 2)} , followed by in step S ₈ corresponds to the calculated value ΔW perform additional heat program in one rank-up finish set level.

On the other hand, if the determinations at steps S ₄ and S ₅ that the above logical product conditions are not satisfied are NO, the control shifts to the normal control described above.

As described above, in the configuration of the high-frequency heating device of the present embodiment, a simple automatic additional heating effect of one-touch operation can be realized by using the additional heating key 47, and at this time, the user can remove the object to be heated. Even if there is a change in weight due to eating, it is possible to set an appropriate amount of additional heat according to the change in weight.

(2) Second Embodiment In the high-frequency heating device provided with the weight sensor as described above,
When the range heating setting operation is performed using the auto menu key, the weight of the object to be heated on the turntable is first detected, and the microwave heating is performed in a predetermined heating pattern according to the detected weight. A suitable magnetron output is automatically set, and a range heating in accordance with the heating pattern is performed within the set time according to the set magnetron output (heating amount) so that a desired finished state is obtained.

However, the system for detecting the weight of an object to be heated by the above-mentioned weight sensor measures the weight of the object to be heated based on the total weight of the object to be heated such as a cooking dish including the container itself. Regarding the weight of the container itself, a data map value is generally mapped to be smaller by the same weight in consideration of the standard dish weight assumed at the time of product design.

However, the cooking dishes actually used at home are not always those having the standard weight assumed at the time of the above design, and there are considerable variations.

[0049] Therefore, the magnetron output set by using the map data as described above causes a considerable variation due to the weight of the cooking dish used, and an appropriate heating amount corresponding to the net weight of the object to be heated. Setting is difficult. As a result, heating failure often occurs.

On the other hand, apart from the problem of insufficient heating based on the inaccuracy of the weight measurement as described above, there is also a case where the user feels that the heating is insufficient at the finishing level by the auto menu due to a favorite problem.

Therefore, in such a case, conventionally, an appropriate heating time is set again by a manual operation, and additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating.

However, this method requires a troublesome manual operation again, which is inconvenient and does not utilize the original convenience of the auto menu.

Therefore, after completion of the predetermined cooking as described above,
For example, if the additional heat key 47 is turned on within one minute after the door is opened and closed without the cancel key being turned on, the finish setting level one rank higher than the previous finish level, for example, if it is weak, the middle , If it is medium, it is set to strong, and if it is even stronger, it is set to strong + α (α is a correction map value for increasing the heating time or heating duty for one rank), and the additional heat at the set level is set. Is performed appropriately, additional heat at the time of defective heating can be easily realized only by one-touch operation of the additional heat key 47.

On the other hand, unlike the case where the previous cooking is completed, if the cancel key is once pressed and the previous cooking is completely completed as necessary, the predetermined time (for example, When the additional heat key 47 is pressed within the maximum time (15 minutes in which the setting data is stored), for example, a simple 1-minute heating operation at the set output level up to that time is performed. Can also.

By adopting such a configuration, the additional heat key 47 can be effectively used not only for the additional heat but also for the purpose of heating a small amount of a separate menu after cooking is completed for a short time.

However, in the case of this configuration, even in the second and subsequent times,
There is an inconvenience that the additional heat key must be turned on at least every time the same menu is cooked.

The high-frequency heating apparatus according to the present embodiment is configured in view of this point. As shown in the flowchart of FIG. 5, the additional heating function similar to that of the first embodiment is performed by using the additional heating key 47. On the other hand, it is possible to register the additional heating time at the time of the first additional heating for the same menu, so that the finished level is automatically stored in memory and the additional heating key operation after the second is unnecessary It is what it was.

[0058] That is, first, the automatic cooking control as described above in Step S ₁ (warmed, thawing, etc. toast) when is executed to be like that set heating time has elapsed automatic cooking is completed, first, in step S ₂ Turn off the heating means such as the magnetron or the heater. Then cancel key 45 is turned ON in the door key group 38 described above in Step S ₃
It is determined whether or not the operation has been performed.

As a result, if the determination is YES, all the above-described cooking condition setting states for the automatic menu heating are reset and the control is terminated, as in conventional normal control.

[0060] On the other hand, when the cancel key 45 is determined to NO without being ON operation, determine further whether the less after engaging 1 minute of the door 16 proceeds to step S ₄ (prior to the expiration) I do.

[0061] User Consequently, for although cooking of the predetermined menu when that is once step S ₁ is YES is completed, once open the door 16, the finished state results were confirmed, which was observed as yet insufficient heating when there deemed trying to reheat be within 1 minute of re-closing the door 16 further proceeds to step S ₅ determines whether the additional heat key is turned oN.

As a result, when it is determined to be YES, _first , the previous finish set level (strong / medium / weak) in step S1.
Is read. Thereafter, finish level on one step than the read previous finish setting level in step S _6, for example, on the strength if in the, also being if weak, strong if further strength + alpha (Where α is a correction map value for increasing the one-step heating time or the heating duty).

Then, the process proceeds to steps S ₇ and S ₈ , and it is determined whether or not the cancel key is operated again by the door 16.
Continue to sequentially determine whether it is time is within 1 minute after the closed, respectively NO, it is determined YES, and further the final registration for registering the finished level of the above Step S ₉ It is determined whether the key has been turned ON by the user.

[0064] As a result, when the YES registration key is ON operated, the finish level for the additional heat which is the new one level proceeds to step S ₁₀ to the memory, thereafter ON the additional heat key The additional heat at the finished level can be performed without operation.

When the above program is executed for all the cooking menus, the subsequent finishing levels for all the cooking menus are changed in the same manner as described above.

According to this configuration, after the completion of the first cooking,
On condition that the additional heat key 47 is turned ON one minute after the door is closed without the cancel key 28 being pressed.
Since the first additional heat time is registered and used for the second and subsequent additional heat, it is not necessary to press the additional heat key every time the same menu is cooked, which is very convenient.

(3) Third Embodiment In the above-described high-frequency heating apparatus, as described above, the finished state is hard to satisfy the user's preference due to various circumstances, and the user may feel that heating is insufficient. Many.

In this case, additional heat control is performed by a manual menu operation or an auto menu program by turning on the additional heat key 47 described above. However, overheating is likely to occur due to improper operation of incorrect time or temperature.
In extreme cases, carbonization may occur.

The present embodiment is configured to solve such a problem, and executes control as shown in the flowchart of FIG. 6 using the control unit 20 of FIG. 3 described above.

That is, first, the heating control is started,
Reads the output of the weight sensor 36 as described above in order to know the weight of the object to be heated in step S _1.

Then, the process proceeds to step S ₂ ,
Cooking sequence corresponding to the output of the weight sensor 36 (heating time, heating output, their heating pattern chronologically including) After running, in step S _3, the heating means OF
Set to F to end the auto menu cooking.

[0072] Thereafter, further proceeds to step S _4, whether the door 16 is closed again been once opened by the cooking completion, i.e., the Upon completion of the auto menu cooking, once the object to be heated is heated chamber by the user 2 However, it is determined that the heating has been insufficient, and it is again delivered into the heating chamber 2 to determine whether or not the door 16 has been closed.

[0073] As a result, when the result is YES, program then proceeds to step S _5, reads the output of the weight sensor 36 again,
Compared to the measured value of the cooking sequence setting time of the step S ₁ determines whether the current measured weight is reduced,
Based on the result, it is determined whether the case is additional heating or continuous heating.

[0074] As a result, when the YES deemed additional heat from the weight of the object to be heated is reduced once, the process proceeds to step S _6, determine actual or additional heat key is turned ON and, when the YES has been turned oN to perform additional heat cooking sequence proceeds to step S _7.

[0075] On the other hand, in the case of continuous heating the weight of the object to be heated is determined NO in the determination in Step S ₅ is not changed, the process proceeds to step S _8, the elapse of a predetermined set heating time for continuous heating It is determined whether or not. Then, as a result, whereas when NO, the routine returns to the step S _4,
If YES, the continuous heating control ends.

(4) Fourth Embodiment In the high-frequency heating apparatus as described above, as described above, the finished state is hard to satisfy the user's preference and the user may feel that the heating is insufficient due to various circumstances. Many.

In particular, in the case of the auto menu, the set in the burned state is set in advance by the manufacturer, and does not always match the user's preference.
Further, for example, in the case of toast, the baked state changes depending on the kind of bread and the thickness.

Therefore, in such a case, conventionally, an appropriate heating time is set again by a manual operation, and additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating.

However, this method requires manual operation again, which is very inconvenient and has a problem that the original convenience of the auto menu is not utilized.

Further, particularly in the case of the above-mentioned toast menu, if the temperature in the refrigerator rises to a certain level, it becomes easy to add a burning color, so that there is a problem that it is very difficult to control the amount of additional heat. For example, in the case of heater heating, if the temperature in the refrigerator is high, the bread will burn in a short time, but if the user opens the door to judge the burning state, the temperature in the refrigerator will drop suddenly.

The present embodiment is configured to solve such a problem, and executes control as shown in a flowchart of FIG. 7 by using the control unit 20 of FIG. 3 described above.

[0082] That is, first, to start the toasted heating control by auto menu reads the output of the weight sensor 36 as described above in order to know the weight of the object to be heated (the number of toasted bread) at step S _1.

[0083] and, on that, the process proceeds to step S _2,
Cooking sequence corresponding to the output of the weight sensor 36 (heating time, heating output, their heating pattern chronologically including) After running, the heating means in step S ₃ (heaters)
Is turned off to end the auto menu cooking (toast baking control by the auto menu).

[0084] Thereafter, further proceeds to step S _4, reads the output T ₁ of the temperature sensor TH ₁ at the cooking completion.

[0085] Next, further proceeds to step S _5, whether it is the additional heat key determines whether the ON operation, the case of the determination result by the as or other case of additional thermal continuous heating Judge.

As a result, Y in which the additional heat key is ON
The routine proceeds to step S ₆ when the ES, the temperature sensor TH ₁
The additional heat cooking sequence is executed by setting the additional heat level according to the output value T ₁ (inside temperature).

[0087] On the other hand, in the case of the determined e.g. continuous heating is NO in the determination in step S _5, determines whether or not a predetermined set heating time for the continuous heating has elapsed proceeds to step S _7. Then, as a result, when the NO whereas returns to the step S _4, when YES ends the continuous heating control.

As described above, in the configuration of the present embodiment, the internal temperature T ₁ is detected by the temperature sensor and additional heat is performed in accordance with the detected value, and when the user opens the door, the door is opened. Count the time and take into account the amount of decrease in the internal temperature due to that time.If you cannot open the door immediately after completing the cooking of the auto toast menu, count the elapsed time from the completion of cooking. Thus, additional heat control according to the time is executed. Therefore, appropriate additional heat control that solves the above-described problems can be performed with a single touch key.

(5) Fifth Embodiment In the above-described high-frequency heating apparatus, as described above, the finished state is hard to satisfy the user's preference due to various circumstances, and the user may feel that heating is insufficient. Many.

In particular, in the case of the auto menu, the set in the burned state is set by the manufacturer in advance, and does not always match the user's preference.
Further, for example, in the case of a toast menu, the baked state changes depending on the type of bread and the thickness.

Therefore, in such a case, conventionally, an appropriate heating time is set again by a manual operation, and additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating.

However, this method requires a troublesome manual operation again, which is very inconvenient and has a problem that the original convenience of the auto menu is not utilized.

Further, particularly in the case of the above-mentioned toast menu, when the temperature in the refrigerator rises to a certain level, it becomes easy to add a burning color, so that there is a problem that it is very difficult to control the amount of additional heat. For example, in the case of heating by a heater, if the temperature in the refrigerator is high, the bread is burnt in a short time, but the user opens the door to judge the burning state, and the temperature in the refrigerator drops rapidly. In the meantime, the weight may change, for example, by taking out one of the breads.

The present embodiment is configured to solve such a problem, and executes control as shown in, for example, a flowchart of FIG. 8 by using the control unit 20 of FIG.

That is, first, the heating control of the toast pan by the auto menu is started, and first, in step S
_The weight sensor 3 described above to know the weight of the object to be heated in ₁
The output W1 of _No. 6 is read.

[0096] and, on that, the process proceeds to step S _2,
A cooking sequence for baking toast bread corresponding to the output W ₁ of the weight sensor 36 (heating time, heating output,
After executing a heating pattern that includes them in chronological order)
And the heating means in step S ₃ (the heater) is turned OFF to end the automatic menu cooking for baking the toasted bread.

[0097] Thereafter, further proceeds to step S _4, whether the door 16 is once opened by the cooking completion, i.e., the completion of the automatic menu cooking, or once the object to be heated is taken out from the heating chamber 2 by the user Determine whether or not.

[0098] As a result, when the result is YES, program then proceeds to step S _5, after being heated object again heating chamber 2 from the time the door open deliveries counts the elapsed time Δt until the door is closed , and the weight sensor 36 at step S ₆ again
Loading of the output W _2, when compared to the measured value W ₁ at the time of cooking sequence setting step S ₁ determines whether the current measured weight W ₂ is reduced, the judgment result is YES calculates the reduced amount ΔW = W ₁ -W ₂ in step S _7. Next, it is determined whether the additional heat key proceeds to step S ₈ on has been turned ON.

[0099] Y in which the additional heat key is actually turned on
Executes the corrected set added heat cooking sequence corresponding to the decrease amount ΔW of the elapsed time Δt and the above weight to closed from the time the door opens proceeds to step S ₉ when the ES.

[0100] On the other hand, after the automatic cooking completion is determined NO in the determination in step S _4, when the door 16 is not opened, the process proceeds to step S _10, for example, the predetermined set heating time for continuous heating It is determined whether or not it has elapsed. Then, as a result, when the NO whereas returns to the step S _4, when YES ends the continuous heating control.

As a result, in addition to the effects of the first embodiment,
Appropriate additional heat control corresponding to the weight change can be realized.

(6) Sixth Embodiment "Thawing raw food" cooking by the auto menu of the high-frequency heating apparatus as described above may require a different amount of heating depending on the degree of freezing, or may be too boiled in general. Because of the fear that the cooking sequence of the manufacturer is set to a slightly lower heating amount, the heating amount is often insufficient.

In such a case, conventionally, an appropriate heating time is set again by manual operation, and additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating.

However, this method requires a manual operation again, which is very inconvenient and has a problem that the original convenience of the auto menu is not utilized.

To solve this problem, it is conceivable to set an exclusive sequence for each cooking menu while providing an additional heat key as in the second embodiment described above. This necessitates a problem that the capacity of the microcomputer increases and the cost increases.

The present embodiment is configured in view of this point. For example, as shown in the flowchart of FIG.
The additional heating function substantially the same as that of the embodiment is realized by using a part of the heating pattern of the previous cooking sequence program.

[0107] That is, first, to start the heating control by auto menu, first reads the output of the weight sensor 36 as described above in order to know the weight of the object to be heated in step S _1.

[0108] Then, the first ON magnetron 13 in step S _2, the process proceeds to step S ₃ thereon, time cooking sequence (heating time for perishable thawed corresponding to the output of the weight sensor 36, the heating output, they after performing the heating pattern) with a line manner including, ends the perishable thawing by auto menu the magnetron 13 is turned OFF at step S _4.

[0109] Thereafter, further proceeds to step S _5, it determines whether the additional heat key is turned ON.

[0110] As a result, when the result is YES, program then proceeds to step S _6, reads the last finishing set level executed in upper Symbol step S _3, if the last finishing set level is "strong", or to determine whether a "medium", any of the determination result depending on the finish heating program of the previous perishable cooking sequence as each next (see FIG. 10) (heating pattern) t ₁ or t ₂ The additional heat control is executed using the above.

That is, the previous finish setting level is “strong”
Time, by using the cooking sequence program t ₁ part of FIG. 10 (heating pattern) proceeds to step S ₇ to perform additional heat.

On the other hand, the previous finish set level is “medium”.
When the (NO in step S ₇₎ the process proceeds to step S _8, FIG. 10
Of the program t ₂ part of the cooking sequence (heating pattern)
Perform additional heat using

[0113] On the other hand, NO is determined in step S _5, without additional heat key is pressed, the process proceeds to step S _9, when setting the heating time has elapsed the control is ended.

As described above, in the additional heat control for thawing raw food in this embodiment, the heating program (heating pattern) of the original raw cooking sequence can be used without setting a new heating program (heating pattern) of its own. ) Is used to perform additional heat by using a part (particularly, the last part).
Therefore, it is possible to perform additional heating according to each cooking menu without increasing the capacity of the microcomputer constituting the control unit. In this case, since the final program part (final heating pattern part) of the previous cooking sequence is used in particular, information of the weight sensor is included, and good and high-precision additional heat control with little uneven heating according to the weight is included. Becomes possible.

(7) Seventh Embodiment In the above-described high-frequency heating apparatus, as described above, the finished state is hard to satisfy the user's preference due to various circumstances, and the user may feel that heating is insufficient. Many.

Therefore, in such a case, conventionally, an appropriate heating time is set again by manual operation, and additional heating is performed while opening the door to check the finished state, thereby compensating for the insufficient heating.

However, this method requires a troublesome manual operation again, which is inconvenient and does not utilize the original convenience of the auto menu.

Therefore, it is conceivable to provide a sequence for exclusive use of the additional heat for each cooking menu while providing the additional heat key as in the above-described second embodiment. Since a dedicated program is required for all of the above, there is a problem that the capacity of the microcomputer is significantly increased and the cost is increased.

Therefore, in the present embodiment, as a countermeasure against the problem, a storage means for storing the set cooking conditions (cooking sequence) up to that time within a predetermined time after the completion of cooking of each cooking menu is provided. Means for executing the additional heat using a part of the set cooking conditions stored by the means so that the additional heat control of the entire menu can be appropriately executed without increasing the capacity of the microcomputer. The configuration is shown in the flowchart of FIG. In the present embodiment, particularly in the case of heater heating, the heater is configured as upper and lower heaters Hu and Hd instead of the upper heater 40 in FIG.

[0120] That is, first, to start the heating control by auto menu, first reads the output of the weight sensor 36 as described above in order to know the weight of the object to be heated in step S _1.

[0121] and, on that, the process proceeds to step S _2,
Cooking sequence corresponding to the output of the weight sensor 36 (heating time, heating output, their heating pattern chronologically including) After running, the heating means (heater Hu, Hd) in step S ₃ and in the OFF End auto menu cooking.

[0122] Thereafter, further proceeds to step S _4, it determines whether the additional heat key is turned ON.

As a result, if the result is YES, the process proceeds to steps S ₅ and S ₇ to read the previous finish set level executed in step S ₂ , and the previous finish set level is “weak”. Or, it is sequentially determined whether it is `` medium '' or `` strong '', and according to the determination result, the previous cooking sequence (see (a) or (b) of FIG. finish heating program) (heating pattern) t _1, t _2, using any of t ₃ to perform additional heat.

That is, the previous finish setting level is “weak”
If YES in (Step S ₅₎ utilizes the cooking sequence program t ₁ part shown in FIG. 12 (a) upper heater Hu proceeds to step S ₆ to perform additional heat.

[0125] Also, when the last finishing setting level is "middle" of the (YES in step S ₇₎ the process proceeds to step S _8, FIG. 12
(a) using the cooking sequence program t ₂ the portion above the heater Hu perform additional heat.

Further, the previous finish setting level is "strong".
When the (both NO in step S _6, S _7), FIG. 12 (a) proceeds to step S _9, the vertical Hu, Hd both programs t ₃ moiety added using heat the cooking sequence of the (b) Execute

As described above, in the additional heat control of this embodiment,
The heating program (heating pattern) of the original cooking sequence without setting a new heating program of its own
Is used to perform additional heat.
Therefore, it is possible to perform additional heat with high accuracy in accordance with the finishing level of each cooking menu without increasing the capacity of the microcomputer constituting the control unit.

[Brief description of the drawings]

FIG. 1 is a front view of a door panel portion showing a housing structure of a high-frequency heating device according to first to seventh embodiments of the present invention.

FIG. 2 is a perspective view showing a structure of a main operation panel portion inside a door panel of the device.

FIG. 3 is a block diagram mainly showing a configuration of a control circuit unit of the device.

FIG. 4 is a flowchart showing a control operation at the time of additional heating cooking according to the first embodiment of the present invention using the control unit of the apparatus.

FIG. 5 is a flowchart illustrating a control operation at the time of additional heating according to the second embodiment of the present invention.

FIG. 6 is a flowchart showing a control operation at the time of additional heating according to a third embodiment of the present invention.

FIG. 7 is a flowchart showing a control operation at the time of additional heat cooking according to a fourth embodiment of the present invention.

FIG. 8 is a flowchart showing a control operation at the time of additional heating according to a fifth embodiment of the present invention.

FIG. 9 is a flowchart showing a control operation at the time of additional heat cooking according to a sixth embodiment of the present invention.

FIG. 10 is a time chart showing a magnetron output of a control operation at the time of additional heating according to the sixth embodiment of the present invention.

FIG. 11 is a flowchart showing a control operation at the time of additional heating according to a seventh embodiment of the present invention.

FIG. 12 is a time chart showing upper and lower heater outputs of a control operation at the time of additional heating according to the seventh embodiment of the present invention.

[Explanation of symbols]

1a is a housing part, 2 is a heating room, 3 is a turntable, 5 is a cooking dish, 13 is a magnetron, 15 is a humidity sensor, 20
Is a control unit, 22 is a magnetron drive unit, 36 is a weight sensor, 38 is a door key group, 44 is a warm start key, 45 is a cancel key, 46 is a slight heating key, and 47 is an additional heating key.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F24C 7/02 340 F24C 7/02 301 F24C 7/02 345

Claims (2)

(57) [Claims] 1. A microwave power or heating means for heating an object by the heater output, and the heating time setting means for setting a heating time of the heating means, a predetermined after completion heating Jo Tokoro cooking menu additional heat the additional heat time setting means for setting a time, in the high-frequency heating apparatus comprising an operating key for actuating the該追heating time setting means, the additional heat time
Set by the setting means during the first additional heating cooking
The first time set after the additional heat of the additional heat time
The additional heat time of the additional heat cooking is registered according to the cooking menu.
Record the data and read it out at the time of the second or subsequent additional cooking.
A high-frequency heating device provided with registration storage means capable of performing the following. 2. A heating means for heating an object to be heated by microwave output or heater output, and a heating pattern of the heating means.
Settings according to the cooking menu and finish level
Heating pattern setting means, and the heating pattern setting means
The heating means is controlled by the set heating pattern.
In a high-frequency heating device having a heat control means,
Up-level determination means and heating of the predetermined cooking menu
After completion, the finish level is determined by the finish level determining means.
Cooking menu that has been heated according to the finish level
Of the cooking menu using part of the heating pattern
A high-frequency heating device comprising an additional heat control means for performing additional heat of a physical substance .