JP2010127470A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of simultaneously supplying heat by radiation and high frequency without supplying them one by one. <P>SOLUTION: A heating chamber 11 receiving a heated object M includes a radiation heat supply section 15 and a high-frequency supplying section 13 as heating sources, and a receiving pan 31 including a high-frequency absorbing body 33 generating heat by irradiation of high frequency, and the heat is simultaneously supplied from the radiation heat supply section 15 and the high-frequency supply section 13, thus a degree of freedom in a baking time due to kinds and sizes of the heated objects can be increased, a heating time can be shortened, and baking performance of the heated object can be improved. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a heating cooker that heats an object to be heated by supplying heat and high-frequency radiation to a heating chamber that houses the object to be heated, and relates to an improved technique that can simultaneously supply power to the heating chamber. .

  2. Description of the Related Art Conventionally, there is a cooker that performs cooking using a saucer provided with a high-frequency absorber that generates heat by irradiating heat and high-frequency radiation in a heating chamber that houses an object to be heated (for example, see Patent Document 1).

The cooking device disclosed in the following Patent Document 1 can be cooked by appropriately combining heat by radiation and heating by high frequency.
JP 2007-155331 A

  However, since the heating cooker as described above supplies only either heat due to radiation or high frequency, after the heating of the object to be heated is started, the saucer provided with the high frequency absorber is first heated by high frequency irradiation. Thus, the bottom surface of the object to be heated is baked, and then the upper surface of the object to be heated is baked by supplying radiant heat. For this reason, once the operator sets the baking time, the ratio of the amount of heat supplied by high frequency and radiation is fixed at that time, and the baking time is definitely determined at the time of starting heating depending on the type and size of the object to be heated. There was a problem that had to be set.

  In addition, it takes time to bake each side of the object to be heated in turn, and furthermore, the top surface of the object to be heated is burned after the bottom surface of the object to be heated is burned, but at this time, the upper surface is still raw For this reason, there is a problem that the fragrance and crispness of the bottom surface of the heated object that has already been baked are impaired by the water that has flowed out due to the loss of the water retention of the protein of the heated object by starting to bake the upper surface It was.

  The present invention solves the above-described conventional problems, and does not supply only one of heat and high frequency due to radiation to a heating chamber for storing an object to be heated. The purpose is to provide a cooking device.

  In order to solve the above-described conventional problems, the first invention has a receiving tray provided with a high-frequency absorber that generates heat when irradiated with heat, high-frequency, and high-frequency radiation in a heating chamber that houses an object to be heated. A heating cooker that heats an object to be heated by simultaneously supplying both the heat generated by the radiation and the high frequency, and has a control unit that controls the supply of the radiant heat and the high frequency to the heating chamber. It is.

  According to this, by simultaneously supplying both heat and high frequency due to radiation, the degree of freedom of baking time depending on the type and size of the object to be heated is increased, and more efficient power supply is performed, so that the heating time And the baking performance of the object to be heated can be improved.

According to a second invention, in the first invention, the control means controls the supply amount of the radiant heat and the high frequency according to the kind of the object to be heated. According to this, it becomes possible to cope with conditions such as the type, size and seasoning of the object to be heated by controlling the amount of radiant heat and high frequency supplied.

  According to the heating cooker according to the present invention, by simultaneously supplying both heat and high frequency due to radiation, the degree of freedom of baking time depending on the type and size of the object to be heated is increased, and more efficient power supply is performed. As a result, the heating time can be shortened and the baking performance of the object to be heated can be improved.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic block diagram showing a configuration example of a heating cooker according to the present invention, and FIG. 2 is a schematic sectional view.

  This heating cooker 100 has a saucer provided with a high-frequency absorber that generates heat by irradiating heat, high-frequency, and high-frequency radiation to the heating chamber 11 that houses the article M to be heated. A heating cooker that heats an object to be heated by supplying both high-frequency waves at the same time, mainly a high-frequency supply unit 13, a radiant heat supply unit 15, and a heating chamber temperature sensor 21 that is a heating chamber temperature detection unit. A switch 19 serving as a heating source selection means, a display unit 23 for displaying various information, a power source unit 27, and a control unit 25 for controlling the entire heating cooker 100 are provided.

  The display unit 23 and the grill switch 19 are provided on the operation panel 17. The display unit 23 displays information such as the operation mode (grill strong, grill weak, etc.), set time and elapsed time.

  The heating chamber temperature sensor 21 is composed of a thermistor and measures the temperature of the heating chamber 11. The temperature detection value by the heating chamber temperature sensor 21 is input to the control unit 25.

  The control unit 25 includes a CPU (Central Processing Unit) and a ROM (Read Only Memory) (not shown). The CPU performs control according to programs and data stored in the ROM.

  As shown in FIG. 2, the high-frequency supply unit 13 of the heating cooker 100 includes a magnetron 35 and high-frequency stirring stirrer blades 37 that disperse the high-frequency output from the magnetron 35 throughout the heating chamber 11. The radiant heat supply unit 15 includes a radiant heater 39 made of an electric heater. The tray 31 on which the object to be heated M is placed includes a high-frequency absorber 33. When the high frequency irradiated from the high frequency supply unit 13 is absorbed by the high frequency absorber 33, the high frequency absorber 33 generates heat, and this heat is transferred to the object to be heated M.

  In the illustrated example, the high-frequency supply unit 13 is disposed below the bottom surface of the heating chamber 11 and the radiant heat supply unit 15 is disposed above the heating chamber 11, but other arrangements may be employed. Moreover, it is good also as a structure provided with the turntable instead of the star blade 37.

  FIG. 3 shows a configuration example of the front portion of the heating cooker 100. A translucent window 41 and an operation panel 17 for visually confirming the inside of the heating chamber 11 are provided on the front surface of the cooking device 100. The operation panel 17 is provided with a display unit 23, a start switch for instructing start of heating, a manual switch for performing manual operation, a timer 43 for setting a heating time, and the like.

  The manual switch above has a strong grill and a weak grill. Select grill strong when grilling grilled fish or hamburgers, and weak grill when grilling foods that are easily burnt with teriyaki, spare ribs or grilled pork. Select.

  Next, the effect | action by the heating cooker 100 of this embodiment is demonstrated. When cooking using this heating cooker 100, the saucer 31 on which the object to be heated M is placed is placed in the heating chamber 11, a desired manual switch is pressed, and the timer 43 is turned to set the heating time. Press the start switch.

  FIG. 4 shows a display example when the grill mode is selected. When the grill switch 19 is pressed once, the grill strength as shown in FIG. When the grill switch 19 is further pressed, the grill weakness as shown in FIG. Each time this switch is pressed, the grill strength and the grill strength are repeated. The grill mode is determined when the timer 43 is turned.

  Next, a specific example of cooking will be described. FIG. 5 is a diagram showing a temperature change in the heating chamber 11 when the grill mode is selected. 6 and 7 are timing diagrams illustrating power supply patterns to the heating supply unit.

  When the grill strength is selected, the radiant heater 39 and the high-frequency supply unit 13 operate simultaneously when cooking is started as shown in FIG. After the heated object M is heated, when the heated object M reaches a temperature set in advance by the heating chamber temperature sensor 21 in order to prevent the heated object M from being overheated, on / off control of the heating source is performed. Heating control is performed so that the temperature of the heating chamber 11 is close to the set temperature.

  When the grill weakness is selected, as shown in FIG. 7, when cooking is started, the radiation heater 39 and the high-frequency supply unit 13 operate simultaneously. In this case, on / off control of the heating source is performed so that the surface of the object to be heated M does not burn due to sudden supply of electric power.

  Further, as shown in FIG. 5, when the heating switching temperature of the weak grill is preset and the heating chamber temperature sensor 21 detects the heating switching temperature of the weak grill, the on-time of the heating source is shortened, and the heating object M is heated. By delaying the rate of temperature rise, the difference between the surface temperature and the internal temperature is reduced, and uneven heating can be prevented.

  As described above, the present invention can be applied to a cooking device such as a microwave oven, and by simultaneously supplying both heat and high frequency due to radiation, the degree of freedom of baking time depending on the type and size of the object to be heated. And more efficient power supply enables shortening of the heating time and improvement of the baking performance of the object to be heated.

The schematic block diagram which shows the structural example of the heating cooker which concerns on this invention The schematic sectional drawing which shows the structural example of the heating cooker which concerns on this invention The front view which shows the structural example of the whole surface part of the heating cooker which concerns on this invention. Explanatory drawing which shows the example of a display at the time of grill cooking Explanatory drawing which shows the temperature change of the heating chamber at the time of grill cooking Timing diagram illustrating the power supply pattern to the heating unit when the grill is strong Timing diagram illustrating power supply pattern to heating unit in case of weak grill

Explanation of symbols

11 Heating chamber 13 High frequency supply section (heating source)
15 Radiant heat supply section (heating source)
17 Operation panel 19 Grill switch (heating source selection means)
21 Heating chamber temperature sensor (heating chamber temperature detection means)
23 display unit 25 control unit (control means)
Reference Signs List 27 Power supply unit 31 Dish 33 High-frequency absorber 35 Magnetron 37 Stirr blade for high-frequency stirring 39 Radiation heater 41 Translucent window 43 Timer 100

Claims (2)

A heating chamber for storing an object to be heated has a saucer equipped with a high-frequency absorber that generates heat when irradiated with heat, high-frequency, and high-frequency radiation, and simultaneously supplies both the heat generated by the radiation and the high-frequency radiation. A heating cooker that heat-treats an object to be heated, and includes a control unit that controls supply of the radiant heat and the high frequency to the heating chamber. The cooking device according to claim 1, wherein the control unit controls the supply amount of the radiant heat and the high frequency according to a type of the object to be heated.