JP2009079864A - Cooking equipment - Google Patents

Abstract

An object of the present invention is to provide an easy-to-use cooking device that does not require the timer to be set or stopped each time, and that allows the cooking time to be understood at a glance.
A heating means for heating an object to be heated, a temperature sensor for detecting the temperature of the object to be heated, a display device, a heating switch for starting or stopping heating, and a count circuit are provided. The control means 7 includes a control means 7, and when the temperature signal from the temperature sensor 9 reaches a predetermined temperature, the count circuit 22 starts counting and displays the count time on the display device 21. When the time is reached or the heating switch 8 stops heating, the display of the count time displayed on the display device 21 is stopped. Thus, the timer time is automatically set and stopped, and it is not necessary to perform the operation every time. In addition, the cooking time can be easily recognized on the display device.
[Selection] Figure 1

Description

  The present invention relates to a cooking device used for general home use or business use.

Conventionally, this type of cooking device has a timer function to notify the end of cooking at the time of heating and to stop the heating, and the timer is set by the person who cooks the cooking to start counting (For example, refer patent document 1).
Japanese Patent No. 3544469

  However, in the conventional configuration, it is necessary to set the time of the timer every time, and it is necessary to perform the timer count start operation during cooking, and there is a problem that the usability is poor. Also, the timer is generally a countdown type and displays the remaining time, so it is impossible to immediately know how many minutes have been cooked during cooking. In order to know the cooking time, it was necessary to perform a calculation such as subtracting the remaining time from the set time during cooking.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and it is an object of the present invention to provide an easy-to-use cooking device that does not need to set or stop a timer each time and that can easily recognize the cooking time at a glance. .

  In order to solve the above-described conventional problems, a heating cooking apparatus according to the present invention includes a heating unit that heats an object to be heated such as a pan, a temperature sensor that detects the temperature of the object to be heated, and a display device that displays the cooking status. And a heating switch for starting or stopping heating, and a control means having a counting circuit for counting cooking time. When the temperature signal input from the temperature sensor reaches a predetermined temperature, the control means Counting is started, the count time is displayed on the display device, and when the predetermined maximum display time is reached or heating is stopped by the heating switch, the display of the count time displayed on the display device is stopped.

  Thus, the timer time is automatically set and stopped, and it is not necessary to perform the operation every time. In addition, the cooking time can be easily recognized on the display device.

  The cooking device according to the present invention does not need to set or stop the timer every time, and is easy to use at a glance.

  1st invention, the heating means which heats to-be-heated objects, such as a pan, the temperature sensor which detects the temperature of a to-be-heated object, the display apparatus which displays a cooking condition, the heating switch which starts or stops heating, Control means having a count circuit for counting the cooking time, and when the temperature signal input from the temperature sensor reaches a predetermined temperature, the control means starts counting and displays the count time on the display device. When the predetermined maximum display time is reached or heating is stopped with a heating switch, the cooking device is configured to stop displaying the count time displayed on the display device. Thus, the timer time is automatically set and stopped, and it is not necessary to perform the operation every time. In addition, the cooking time can be easily recognized on the display device.

  In the second invention, in particular, in the first invention, the count displayed on the display device is a count-down display by adopting a count-up configuration in which the count time after the temperature sensor reaches a predetermined temperature is displayed. It is not necessary to mentally calculate the heating time in the head, and the cooking time can be read as it is.

  According to a third aspect of the present invention, in particular, in the first or second aspect of the present invention, by providing a count start switch that resets the count circuit at the time of operation and restarts the count circuit, the cooking time is renewed from the middle of heating cooking. When it is necessary to measure, the timer display can be restarted by pressing the count start switch, and the time of each cooking step can be measured when another cooking is performed one after another.

  The fourth aspect of the present invention is the preheating of a pan, a frying pan, or the like, in particular, in any one of the first to third aspects, by including a detection temperature changeover selection switch for selecting a plurality of temperatures as the detection temperature of the temperature sensor. The preheating temperature most suitable for cooking can be selected, and it can be set as the structure which does not consume useless heating energy simultaneously with the deliciousness of cooking.

  In a fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, a plurality of temperature sensors provided in the projection surface of the heating unit and a temperature signal from the temperature sensor are calculated in the control unit. Select whether the counting circuit starts counting when the maximum temperature of multiple temperature sensors reaches a predetermined temperature, or whether the counting circuit starts counting when the average temperature of multiple temperature sensors reaches a predetermined temperature A count changeover switch is provided. As a result, when cooking without scorching, the count is set to start when the maximum temperature reaches a predetermined temperature, and when the entire temperature such as a frying pan needs to be heated sufficiently, the average temperature is set to a predetermined value. Can be set to start counting when the temperature reaches the temperature, and a temperature setting condition such as a frying pan can be selected in accordance with cooking.

  In the sixth invention, in particular, in any one of the first to fifth inventions, at least one of the temperature sensors is constituted by an infrared sensor that detects infrared rays from an object to be heated. In the case of detection, the bottom of a frying pan or the like that is the object to be heated can be directly detected, and the preheating temperature of the object to be heated can be detected accurately and quickly.

  In a seventh aspect of the invention, in particular, in any one of the fourth to sixth aspects of the invention, the temperature sensor is arranged near the center of the heating means or on a circle centered on the center of the heating means. Even if a part of the temperature rises due to heating of the bottom surface, it can be detected, and the temperature of a relatively high temperature portion of the object to be heated can be detected.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 to 3 illustrate an induction heating cooker as the cooking device according to Embodiment 1 of the present invention.

  As shown in FIG. 1, a top plate 3 made of crystallized glass and having a thickness of 4 mm can be attached to and detached from a top surface 2 of a substantially rectangular parallelepiped main body 1. A heating means 4 made of a heating coil is disposed in the main body 1 below the top plate 3 so as to be positioned on the left and right. Below the left heating means 4, a grill 5 for grilling fish and the like is disposed, and a door 6 for taking in and out the food from the front of the main body 1 is provided. Below the right heating means 4, a control means 7 for supplying and controlling electric power to the heating means 4 is arranged. The left half of the main body 1 is provided with a grill 5, and the right half contains control means 7 and the like. A heating switch 8 for operating the left and right heating means 4 and a switch for adjusting the heating power of heating are provided at the front of the top plate 3.

  A temperature sensor 9 formed of a thermistor is located below the top plate 3 of the main body 1. The temperature sensor 9 is disposed in the projection plane of the heating unit 4. As shown in FIG. 3, the left and right heating means 4 are constituted by concentric inner and outer peripheral coils 10 and 11. A gap 12 is formed between the inner and outer peripheral coils 10 and 11, and the temperature sensor 9. Are arranged in the gap 12. The temperature sensor 9 is arranged at about every 120 degrees obtained by equally dividing an angle of 360 degrees from the center of the heating means 4. A central temperature sensor 13 made of a thermistor is disposed in the center of the heating means 4. The central temperature sensor 13 detects the temperature at the center of the object to be heated 14 such as a pan or a frying pan, and the temperature of the bottom of the object to be heated 14 during heating is small. Rather, the temperature inside the object to be heated 14 after heating is rather small. This is a sensor for detecting the temperature of the food.

  When the bottom surface of the object to be heated 14 is heated by the electric power from the heating means 4, the bottom surface of the object to be heated 14 is heated substantially in a donut shape, and an intermediate portion between the inner peripheral coil 10 and the outer peripheral coil 11, that is, the temperature sensor 9 is The position immediately above where it is located is the position where the temperature rises the most. Each temperature sensor 9 is transmitted from the bottom of the object to be heated 14 through the top plate 3 by heat conduction.

  Returning to FIG. 1, on the right side of the front surface of the main body 1, there is an operating portion 15 that has a rotating shaft at the bottom and is exposed while rotating as necessary. The operation unit 15 has an operation unit for the rear heating means 16 (heating coil or heater) and an operation unit for the grill 5 arranged at the center rear of the top plate 3. On the right side of the operation unit 15, as shown in FIG. 2, a count start switch 17, and a changeover switch 18 for switching between the highest temperature and the average temperature detected by the temperature sensors 9 as the detected temperature, Detecting temperature changeover switch 19 that can be set by switching each time the low temperature (about 140 ° C), medium temperature (about 200 ° C) and high temperature (about 260 ° C) are pressed, and the timer function to display is counted up or down There is provided a count changeover switch 20 for switching between them.

  The display device 21 of the operation unit 15 is formed of a liquid crystal display element. The display device 21 displays a cooking timer 23 that starts counting by the count circuit 22 built in the control means 7 after completion of preheating and displays the numerical value of the count circuit 22. Further, the operation unit 15 has a built-in speaker 24 for notifying that the preheating is completed by sound or voice. When the preheating by the heating means 4 is completed, a notification that “preheating has been completed” is given by a fuzzer sound and sound from the speaker 24. The display device 21 also displays the status of the heating means 4 and the grill 5, the setting of a timer, and the like.

  The initial setting of the count start switch 17 has a function to start counting up when the temperature sensor 9 detects completion of preheating. Counting stops when heating of the heating means 4 is stopped. Also, it stops after a maximum of 30 minutes. This is because cooking such as boiling for several hours is premised on cooking with a separate heating timer (not shown) in advance. If the count start switch 17 is operated during cooking, the count display is reset and recounts from zero. This is a convenient function when you want to count time again during the cooking procedure.

  The changeover switch 18 notifies when the maximum detected temperature of the three temperature sensors 9 reaches a predetermined temperature and starts counting, or the average value of the detected temperatures by the three temperature sensors 9 is predetermined. It is a switch for selecting whether to start the count when the temperature is reached. In the case of cooking pottery, it is better to add ingredients when the maximum temperature of the bottom of the object to be heated 14 reaches a predetermined temperature. In the case of fried food cooking, the temperature of the entire bottom of the object to be heated 14 is predetermined. Since it is better to throw in the food when the temperature is close to the temperature, it is provided as a switch for selecting a detection method in accordance with cooking. The initial setting of the changeover switch 18 is set to a mode in which preheating is notified when the maximum temperature reaches a predetermined temperature.

  The detected temperature changeover switch 19 has a function of setting the temperature for preheating notification according to cooking. Preheating at about 140 ° C. is used for fried eggs, preheating is about 200 ° C. for okonomiyaki, and preheating is about 260 ° C. for yakiniku. The initial setting of the detection temperature changeover switch 19 is 260 ° C.

  The count switch 20 is a switch that switches between a count-up function and a count-down function. In the count-up function, when the temperature sensor 9 detects a predetermined preheating temperature, the cooking timer 23 is displayed on the display device 21 of the operation unit 15, but this time, the display is a display that sequentially counts up after detecting the preheating. It is a function to do. The countdown function is a function that sequentially counts down from the initial value (30 minutes) that is the maximum display time when the preheating temperature is detected. In the case of the countdown function, the cooking timer 23 stops after 30 minutes. The initial setting of the count changeover switch 20 is a countdown function. Moreover, when the energization to the heating means 4 is stopped by the heating switch 8, the cooking timer 23 is stopped.

  Furthermore, the time until the temperature sensor 9 detects a predetermined temperature is limited. For example, the heating switch 8 is operated to start heating the article 14 to be heated by the heating means 4, but the preheat notification is not made after 5 minutes from the heating by the limiter 25 built in the control means 7 and the cooking timer 23 is activated. do not do. This is because the main body 1 cannot detect whether preheating or boiled food is being cooked, so that it can be determined in 5 minutes whether or not the preheating is close to empty cooking. In general, the preheating of a frying pan or the like is about 2 minutes, and within 5 minutes at the longest.

  After the preheating notification, the temperature sensor 9 restricts energization to the heating means 4 via the control means 7 while the energization is continued to the heating means 4, and restricts the temperature of the bottom of the article 14 to be heated. Is kept below a predetermined temperature. Further, the input to the heating means 4 continues to supply the power when preheating. However, when the heating power is adjusted by operating the heating switch 8 or the like, the operation is given priority.

  About the cooking device comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the object to be heated 14 is preheated and fried such as meat. When heating the article 14 to be heated, the heating switch 8 is operated to supply power from the control means 7 to the heating means 4. Preheating of the object to be heated 14 starts and the temperature of the bottom of the object to be heated 14 rises. A temperature sensor 9 detects an increase in temperature via the top 3. Eventually, when one of the three temperature sensors 9 detects a predetermined temperature (260 ° C.), the control means 7 notifies the speaker 24 that the preheating has been completed with a notification sound and voice, and at the same time, the cooking timer 23 changes from zero to one. Counting up every second, counting the time from completion of preheating, and displaying the cooking timer 23 on the display device 21.

  Ingredients are added to the object to be heated 14 and cooking is performed, but when adding seasonings in the middle and adding this seasoning, for example, when fried for 2 minutes, add the seasonings and count Press the start switch 17. The cooking timer 23 of the display device 21 restarts counting from the reset zero. In order to stop cooking after 2 minutes, the heating switch 8 is operated to stop energization of the heating means 4. At this time, the count of the cooking timer 23 stops at the same time as the energization of the heating means 4 is stopped.

  Next, in order to boil, the foodstuff and water are put into the to-be-heated material 14, and it heats. The heating switch 8 is operated to supply electric power from the heating means 4 to the object to be heated 14. Since the object to be heated 14 contains a large amount of water, the temperature at the bottom of the object to be heated 14 is about 130 ° C. is there. When 5 minutes have elapsed since the start of heating, even if the temperature sensor 9 reaches a predetermined temperature (initial value is 260 ° C.) after the limiter 25 built in the control means 7 is activated, the preheating completion notification is issued. No cooking timer 23 is activated. When normal heating is continued and cooking is finished, the heating switch 8 is operated to finish cooking.

  Thereafter, when the heating switch 8 is operated again to start heating by the heating means 4, if the temperature sensor 9 detects a predetermined temperature, a preheating completion notification is given and the cooking timer 23 counts the cooking time from zero.

  Here, if the detection temperature changeover switch 19 is operated, the setting of the detection temperature of the temperature sensor 9 for informing the completion of preheating can be switched. It will be. The initial setting is the maximum temperature of 260 ° C.

  In addition, when the count start switch 17 is operated to time only the addition of seasoning or a certain cooking process, the cooking timer 23 of the display device 21 counts from zero, which is convenient for timing during cooking. .

  The changeover switch 18 notifies the completion of preheating when the detected temperature of the three temperature sensors 9 reaches the predetermined temperature detected by the three temperature sensors 9, or the average of the three temperature sensors 9. This function allows you to select whether to notify the completion of preheating when the temperature reaches a predetermined temperature, so in the case of cooking that does not want to be burnt, a mode that notifies when the maximum temperature reaches the predetermined temperature It is preferable to set to a mode in which preheating completion notification is made when the average value of the detected temperatures detected by the three temperature sensors 9 reaches a predetermined temperature when cooking fried foods. The initial setting is set to a mode for notifying completion of preheating when the maximum temperature of the three temperature sensors 9 reaches a predetermined temperature.

  The count changeover switch 20 is a switch for changing over the count of the cooking timer 23 from the count-up mode and the count-down mode. The initial setting is set to count-up mode.

  Thus, in this embodiment, when the temperature signal input from the temperature sensor reaches a predetermined temperature, the control means starts counting and displays the count time on the display device, and the predetermined maximum display time. Or when the heating is stopped by the heating switch, the display of the count time displayed on the display device is stopped. Thus, the timer time is automatically set and stopped, and it is not necessary to perform the operation every time. In addition, the cooking time can be easily recognized on the display device.

  In the present embodiment, the induction heating cooker has been exemplified as the heating cooking device, but the present invention is not limited to this, and the heating means may be a sheathed heater, gas, or the like. In addition, in the case of an induction heating cooker, compared to a gas cooker, there is no flame and there is no actual feeling of heating, so the cooking time is at a glance in the display device as in this embodiment. It is very preferable to make it understandable.

(Embodiment 2)
FIG. 4 shows a heating means portion of the cooking device according to Embodiment 2 of the present invention. The configuration of the cooking device is the same as that of the first embodiment, and the description thereof is omitted.

  As shown in the figure, in the present embodiment, at least one of the three temperature sensors 30 is formed of an infrared sensor. Infrared rays radiated from the bottom of the object to be heated 14 pass through the top plate 3 and reach the temperature sensor 30 to detect this. The temperature signal from the temperature sensor 30 is detected by the control means 7. In particular, the central temperature sensor 13 may not be formed of an infrared sensor. In the present embodiment, elements other than the temperature sensor 30 are the same as those in the first embodiment and are given the same reference numerals.

  The operation and action of the cooking device configured as described above will be described below.

  First, the object to be heated 14 is placed on the top 3. Electric power is supplied to the heating means 4 by operating the heating switch 8. The temperature of the bottom of the object to be heated 14 rises and infrared rays are emitted from the bottom of the object to be heated 14. The emitted infrared light passes through the top 3 and is detected by a temperature sensor 9 formed by an infrared sensor disposed in the gap 12 of the heating means 4. The signal from the temperature sensor 9 is detected by the control means 7. Subsequent operations are the same as those in the first embodiment, and will be omitted.

  As described above, in the present embodiment, at least one of the temperature sensors is configured by an infrared sensor that detects infrared rays from the object to be heated, so that a frying pan that is an object to be heated is used particularly when detecting the maximum temperature. The bottom of the object can be directly detected, and the preheating temperature of the object to be heated can be detected accurately and quickly.

  In the first and second embodiments, the temperature sensor is arranged near the center of the heating means or on a circle centered on the center of the heating means, so that a part of the temperature rises due to heating of the bottom surface of the object to be heated. Even if it detects, the temperature of the comparatively high temperature part of a to-be-heated material can be detected. However, any arrangement may be used as long as the temperature of the heated object bottom can be detected by the temperature sensor, and there is no particular limitation.

  Further, although the number of temperature sensors is three, if it is one or more, the numerical value may be determined based on performance and economy. The speaker may be formed of a device having a notification function, for example, an element that emits sound by applying a signal to a vibrator such as a buzzer or a piezoelectric element.

  The temperature sensor may be formed of a temperature detection element other than the thermistor or the infrared sensor, and is not particularly limited.

  As described above, the cooking device according to the present invention does not need to set and stop the timer every time, and since it is convenient to understand the cooking time at a glance, without being caught by the heat source, Applicable to all cooking equipment.

The perspective view of the heat cooking apparatus in Embodiment 1 of this invention Partial perspective view of the cooking device The perspective view of the heating means part in the heating cooking apparatus The perspective view of the heating means part of the heat cooking apparatus in Embodiment 2 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 3 Top plate 4 Heating means 7 Control means 8 Heating switch 9, 30 Temperature sensor 14 Object to be heated 17 Count start switch 19 Detection temperature change switch 20 Count change switch 21 Display device 22 Count circuit 25 Limiter

Claims (7)

A heating means for heating an object to be heated such as a pan, a temperature sensor for detecting the temperature of the object to be heated, a display device for displaying cooking status, a heating switch for starting or stopping heating, and a count for counting cooking time Control means having a circuit, and when the temperature signal input from the temperature sensor reaches a predetermined temperature, the control means starts counting and displays the count time on the display device, and the predetermined maximum display time If the heating time is reached or heating is stopped with a heating switch, the display of the count time displayed on the display device is stopped. The cooking device according to claim 1, wherein the count displayed on the display device is a count-up configuration in which a count time after the temperature sensor reaches a predetermined temperature is displayed. The cooking apparatus according to claim 1, further comprising a count start switch that resets the count circuit during operation and restarts the count circuit. The heating cooking apparatus of any one of Claims 1-3 provided with the detection temperature switching selection switch which selects several temperature for the detection temperature of a temperature sensor. Multiple temperature sensors provided in the projection surface of the heating means and the temperature signal from the temperature sensor are calculated in the control means, and the count circuit starts counting when the maximum temperature of the multiple temperature sensors reaches a predetermined temperature The cooking device according to any one of claims 1 to 4, further comprising a count changeover switch that selects whether the count circuit starts counting when an average temperature of the plurality of temperature sensors reaches a predetermined temperature. apparatus. The cooking device according to any one of claims 1 to 5, wherein at least one of the temperature sensors is an infrared sensor that detects infrared rays from an object to be heated. The cooking device according to any one of claims 4 to 6, wherein the temperature sensor is arranged in the vicinity of the center of the heating means or on a circle centered on the center of the heating means.

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