JPH03291416A - Heating device - Google Patents

Abstract

PURPOSE:To allow good cooking and energy saving by constituting a heating device for thawing and toasting frozen bread, etc. in such a way that microwave-heating power increases as resistance-heating power decreases. CONSTITUTION:The number of slices of bread or extent of baking are set by tenkey, heating time of a heater for heater 2 is determined according to the set value, and heating time of a high-frequency heater is also determined according to the heating time. That is, the more the slices of bread are and the higher the extent of baking is, the longer the heating time of heater is determined. And the longer the heating time of heater is, the shorter the high-frequency heating time is. Thus, good cooking and energy saving are possible.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a high-frequency oscillation heating means, an exothermic heating means, a heating amount setting means for changing and setting the heating amount by the exothermic heating means, and an activation control means for executing heating by the exothermic heating means at the heating amount set by the heating amount setting means, and then heating by the high frequency oscillation heating means at the set heating amount in accordance with a command; The present invention relates to a heating device.

[Conventional technology]

This type of heating device is suitable for thawing and cooking frozen bread, frozen gratin, and the like. To explain this using frozen bread as an example, the best way to preserve the flavor of the bread is to store sliced bread in the freezer and then take it out of the freezer to bake as much as you want. It is said. Heating using high-frequency oscillation heating means is suitable for thawing, and heating using heat-generating heating means such as electric heaters is suitable for browning the surface of bread and baking it. By combining the methods, frozen bread can be baked more effectively.

Furthermore, by heating the food using the exothermic heating means first and then heating the high-frequency oscillation heating means, it is possible to achieve better cooking. In other words, if thawing is first performed by heating with a high-frequency oscillation heating means and heating is then performed with an exothermic heating means, uneven baking will occur on the surface of the bread due to uneven thawing. Experiments have shown that if the bread is heated first using an exothermic heating means and then using a high-frequency oscillation heating means, the surface of the bread will become golden brown, and the inside will be sufficiently heated, resulting in baked clay. This is because it became clear as a result.

By the way, conventionally, the set amount of heating by the high-frequency oscillation type heating means was kept constant regardless of the change setting of the amount of heating of the exothermic type heating means.

[Problems to be Solved by the Invention] If the set heating amount of the high-frequency oscillation heating means is maintained constant, there is a disadvantage that cooking cannot always be performed well regardless of the setting of the heating amount of the exothermic heating means, and improvement is desired. It is rare.

In other words, for example, the set heating amount of the high frequency oscillation type heating means,
When the heating amount of the exothermic heating means is determined according to the standard value, if the heating amount of the exothermic heating means is set to a small amount, there is a risk that the heating inside the bread will be insufficient, or ,
If the heating amount of the exothermic heating means is set to a large amount, there is a risk that the flavor will deteriorate due to excessive heating, and it will lead to wasteful consumption of energy, so that good cooking cannot always be achieved.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to always be able to perform good cooking regardless of the setting of changing the heating amount of the exothermic heating means, and to suppress wasteful consumption of energy. The purpose of this invention is to provide a heating device that can.

[Means to solve the problem]

The heating device according to the present invention includes a high-frequency oscillation type heating means, an exothermic type heating means, a heating amount setting means for changing and setting a heating amount by the exothermic type heating means, and a heating amount setting means for changing and setting the amount of heating by the exothermic type heating means; and a control means for heating by the high frequency oscillation type heating means at the set heating amount after heating is performed at the heating amount set by the heating amount setting means, the first feature thereof being The configuration is that the control means is configured to increase the preset heating amount in the high-frequency oscillation heating means as the heating amount by the exothermic heating means decreases.

The second characteristic configuration specifies a preferred specific configuration when implementing the first characteristic configuration, and includes adjustment of the heating amount of the exothermic heating means and the heating amount of the high frequency oscillation heating means. However, this is done by changing the heating operation time.

[For production]

In the first characteristic configuration, the control means is configured to increase the preset heating amount in the high-frequency oscillation heating means as the heating amount by the exothermic heating means decreases, so that, for example, when baking frozen bread, If the heating amount of the exothermic heating means is set to be small, the amount of heating of the high frequency oscillation heating means will increase by the amount of heating of the exothermic heating means, and the inside of the bread will be sufficiently thawed and heated. Ru. On the other hand, when the heating amount of the exothermic heating means is set to be large, the amount of heating of the high frequency oscillation heating means decreases by the amount of heating of the exothermic heating means. In addition, when the amount of heating by the exothermic heating means is set to be sufficiently large, it is also possible to reduce the amount of heating by the oscillating heating means to zero.

In a second characteristic configuration, the heating amount of the exothermic heating means and the heating amount of each of the high frequency oscillation heating means are adjusted by changing the heating operation time while keeping the respective heating outputs constant.

〔Effect of the invention〕

Therefore, in the first characteristic configuration, the amount of heating by the high frequency oscillation type heating means compensates for the shortage of the amount of heating by the exothermic heating means, and conversely, when the amount of heating by the exothermic type heating means is sufficient, the amount of heating by the high frequency oscillation type heating means By reducing or omitting the amount of heating caused by heating, a heating device has been provided which can always perform good cooking and can also save energy.

Furthermore, in the second characteristic configuration, the heating amount of the exothermic heating means and the high frequency oscillation heating means can be easily adjusted by managing the heating operation time by the control means.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

In Fig. 1, (K) is a heating cooking chamber, (1) is a magnetron as a high-frequency oscillation heating means, (2) is a pair of upper and lower electric heaters as an exothermic heating means, and (T) is an electric motor (M ) A turntable driven by
Cook foods such as frozen bread (5). (D) is a stand for the frozen bread (5). (4) is a control means for controlling heating cooking, and is equipped with a microcomputer (not shown), and the heating cooking order is programmed. (6) is an operation panel, which includes a keyboard (not shown) for setting the cooking mode (for example, frozen toast) and cooking conditions, and information such as heating output and elapsed time in the setting mode or cooking execution mode. It is equipped with a display (9) for displaying information. The heating amount setting means (3) is included in this operation panel (6), and for example, in the case of frozen toast, it corresponds to setting the number of bread pieces and setting the degree of baking. The operation panel (6) is also provided with a start switch (8) that gives a start command to the control means (4).

Next, the operation of this heating device will be explained with reference to FIG. Note that FIG. 2 only shows the setting procedure for the frozen toast mode and the cooking execution order.

In this heating device, the display (9) is a clock display except during cooking or setting cooking conditions, and in this state, selection keys for various cooking modes can be pressed. Here, if you press the "Frozen Toast" key, you will enter the frozen toast setting mode (see the right side of Figure 2). Next, use the numeric keypad or up/down keys to set the number of pieces of bread and the degree of baking. At this time, the heater heating time is determined according to these set values, and the high frequency heating time is also determined according to the heating time. In other words, the longer the number of pieces of bread and the higher the degree of doneness, the longer the heater heating time is determined. The longer the heater heating time, the shorter the high frequency heating time.

However, in this embodiment, the high frequency heating time is adjusted only by the degree of baking.

To explain specifically, for example, when the degree of doneness is set in five levels, the high frequency heating time is set to 30 seconds, 20 seconds, 10 seconds, and 0 seconds from the lowest to the highest degree of doneness. Ru. Note these heating times as a control measure! ,I-(
10). The settings for frozen toast are now complete and the start switch (8) can be turned on. At this time, the display (9) is displaying the setting mode and setting values.

When the start switch (8) is pressed, a start command is given to the control means, and after checking that the door is closed, cooking starts (left side in Figure 2). At this time, if it is determined that the frozen toast mode is selected, first the heater heating time stored in the memory (10) is set on the timer (
After being transferred to step 7), heater heating is started. The timer (7) then starts subtraction. Timer (7)
When the subtraction is completed, the heater heating is stopped. continue,
High frequency heating time from memory (10) to timer (7)
After being transferred to , high frequency heating is activated. The timer (7) then starts subtraction. Next, the timer (7)
When the subtraction of is completed, high frequency heating is stopped and cooking is completed. During cooking, the display (9) displays the cooking mode and a subtraction timer for the total cooking time, and when the cooking is completed, the buzzer (B) sounds and the display (9)
) returns to clock display.

[Another example]

In the above embodiment, the heating amount of the exothermic heating means (2) and the heating amount of the high frequency oscillation heating means (1) are adjusted by changing the heating operation time while keeping the heating output constant. , conversely, by keeping the heating operation time constant,
The heating output may be changed. Or both may be changed.

The method of changing the heating output is 0N per unit time.
It is common to change the ratio (duty) of 10FF. Regarding the high frequency oscillation type heating means (1), the capacitance of the high voltage capacitor of the high frequency oscillation circuit may be switched.

Further, as a specific example of the heating amount setting means (3), in addition to setting the number of pieces of bread and setting the doneness of baking as described above, setting the thickness of the bread, etc. can be considered.

For the sake of clarity, the explanation above has focused on frozen bread as the food to be heated, but the present invention is not limited to frozen bread, but can also be applied to cooking frozen pizza, frozen gratin, etc. Needless to say.

In addition, as the exothermic heating means (2), in addition to electric heaters,
Any device that heats cooking by self-heating, such as a gas combustion device, can be used.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a heating device according to an embodiment of the present invention, and FIG. 2 is a flowchart explaining its operation. (1)...High frequency oscillation type heating means, (2)...
... exothermic heating means, (3) ... heating amount setting means, (4) ... control means.

Claims (1)

[Claims] 1. High frequency oscillation heating means (1) and exothermic heating means (
2), a heating amount setting means (3) for changing and setting the heating amount by the exothermic heating means (2), and, in response to a start command,
Control for performing heating by the exothermic heating means (2) at a heating amount set by the heating amount setting means (3), and then heating by the high frequency oscillation heating means (1) at a set heating amount. A heating device comprising means (4),
The control means (4) controls the high frequency oscillation type heating means (1).
) in the heat generating heating means (2).
A heating device configured to increase the amount of heating as the amount of heating decreases. 2. The heating device according to claim 1, wherein the heating amount of the exothermic heating means (2) and the heating amount of the high frequency oscillation heating means (1) are adjusted by changing the heating operation time.