JP2012014839A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker that includes inside thereof weight detection means so as to measure weight of a pan and cooked foodstuffs, displays and indicates the weight for cooking with no failure, and consumes neither unnecessary time nor electric power to improve user's convenience.SOLUTION: The heating cooker comprises a heating coil 7 which heats a body to be heated such as the pan 9 in which cooked stuffs are put, a plate 10 on which the body to be heated is placed, control means 11 of controlling the heating coil, the weight detection means 4 of detecting the weight of the plate 10, and a weight display part 5 which displays a weight value of the body to be heated computed from a weight value detected by the weight detection means 4. With this constitution, the weight detection means detects the weight in a state where the body to be heated is placed on the plate 10, and the detection result is displayed by the weight display part 5 of a main body. Consequently, the weight of the cooked stuffs can be measured before and during cooking to achieve heating cooking with no failure.

Description

  The present invention relates to a cooking device with a weight measuring function.

  A conventional cooking device will be described with reference to the drawings. FIG. 5 shows a conventional induction heating cooker. As shown in the figure, the main body 27 includes a plate 24 whose upper surface is made of crystallized glass and the like, and a heating coil 25 included in the main body 27. On the plate 24, an operation unit 26 capable of performing a cooking operation is disposed.

  In the main body 27, the user places an object to be heated such as a pan at a predetermined position on the plate 24. Then, by instructing heating from the operation unit 26, the object to be heated is induction heated.

  When the user gives an instruction to start heating, a high-frequency current is supplied to the heating coil 25 from an inverter (not shown) connected to the heating coil 25, and the high-frequency magnetic field generated from the heating coil 25 by this high-frequency current is applied to the pan. Supplied.

Therefore, an eddy current is generated in the surface layer of the pan, and heat is generated by the eddy current and the high-frequency resistance of the object to be heated. Using this heat generation, the user performs various types of cooking. Here, there is also a thing equipped with a weight detection means for measuring the weight of the pan loaded on the heating cooker and the food, and it is described that the heating power is adjusted according to the weight.

JP 2001-196153 A

  However, the conventional cooking device is only used for power control during heating and has little merit for the user. That is, cooking takes a lot of time for preparation, and it is difficult to measure the weight of the cooked product, the weight of the seasoning, and the like. Furthermore, if the amount of food is wrong, it will fail or throw away hot water on the way, resulting in a waste of time and power.

  The present invention solves the above-mentioned conventional problems, and includes a weight detection means inside the cooking device, measures the weight of the pan or food loaded on the upper part of the main body, and fails to display / notify the weight. It is an object of the present invention to provide a cooking device that can be used without cooking and that improves the user-friendliness without consuming wasteful time or power due to failure.

  In order to solve the above problems, an induction heating cooker according to the present invention comprises a heating means for heating an object to be heated such as a pan containing cooked food, a top plate for placing the object to be heated, and the heating means. Control means for controlling, weight detection means for detecting the weight of the top plate, and weight display means for displaying the weight value of the object to be heated calculated from the weight value detected by the weight detection means. Is.

Thus, since the weight can be detected by the weight detection means in the state of being loaded on the plate, and the detection result can be displayed or notified on the display unit of the main body, the weight of the cooked food can be measured before cooking. Yes, it can be cooked with a suitable amount according to the recipe.

  The induction heating cooker of the present invention can measure the weight of a cooked product before cooking, can cook without failure, and does not consume wasteful time or wasteful power due to failure. It can be a cooker.

The block diagram of the heating cooker in Embodiment 1 of this invention The circuit block diagram of the heating cooker in Embodiment 1 of this invention The block diagram of the heating cooker in Embodiment 2 of this invention The circuit block diagram of the heating cooker in Embodiment 2 of this invention Configuration diagram of a conventional cooking device

  1st invention is a heating means which heats to-be-heated objects, such as a pot which accommodated food, a top plate which mounts the to-be-heated object, a control means which controls the above-mentioned heating means, It is a heating cooker comprising weight detection means for detecting weight and weight display means for displaying the weight value of the object to be heated calculated from the weight value detected by the weight detection means.

  In this way, the weight can be detected by the weight detection means while being loaded on the plate, and the detection result can be displayed or notified by the weight display means of the main body, so that the weight of the cooked food is measured before cooking. It is possible to cook with an appropriate amount according to the recipe, so that cooking can be performed without failure, and wasteful time and power consumption due to failure can be eliminated.

  According to a second aspect of the present invention, in the first aspect of the invention, the first aspect further includes temperature detection means for detecting the temperature of the object to be heated, and the weight value detected by the weight detection means and the detected temperature of the temperature detection means The power of the heating means is controlled from the control means.

  Thus, by using in combination with the temperature detection means, detection accuracy such as addition of ingredients during cooking is improved, so that more accurate cooking and reproducible cooking can be performed.

  In the third invention, particularly in the first or second invention, when the detected temperature is substantially constant and the weight value increases, the power of the heating means is maintained, the detected temperature decreases, and the weight value increases. In this case, the electric power of the heating means is increased, and when the detected temperature is constant and the weight value decreases, the electric power of the heating means is decreased.

  By using this together with the temperature detection means, it can be estimated whether the food being cooked has been taken out, or the lid can be removed or removed, and the heating power can be controlled according to the state without failure. It can be cooked and it can be used more conveniently.

  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)
Embodiment 1 of the present invention will be described with reference to FIG. 1 and FIG. FIG. 1 is a configuration diagram of a heating cooker according to the first embodiment of the present invention. In FIG. 1, on the upper surface of the main body is a plate 10 which is a top plate made of crystallized glass.

  The plate 10 is loaded with a pan containing food. A heating coil 7 serving as a heating means is disposed at the lower part of the plate 10 and heats the pan by induction heating. It comprises an operation unit 3 for a user to give a heating instruction, a weight detection unit 4 for detecting the weight of a pan or food loaded on the upper surface of the plate 10, and a weight display unit 5 which is a weight display unit for displaying a weight detection value. ing.

  FIG. 2 is a circuit block diagram of the heating cooker 1 according to the first embodiment of the present invention. A high-frequency current is generated by the inverter 6 connected to the commercial power source, and the current flows through the heating coil 7. The inverter 6, the weight detection unit 4, the operation unit 3, the weight display unit 5, and the control unit 11 that controls the inverter 6 are configured.

  About the cooking-by-heating machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the user of the heating cooker 1 places an object to be heated such as the pan 9 at a predetermined position on the plate 10. Since the weight is detected by the weight detection means 4 in the state of being loaded on the plate 10 and the detection result can be displayed or notified by the weight display section 5 of the heating cooker body, the weight of the cooked food before cooking Can be measured.

  The user puts an appropriate amount of food such as water in the pan 9 according to this display. Thereafter, the object to be heated is induction-heated by giving a heating instruction from the operation unit 3. When the user gives an instruction to start heating, a high-frequency current is supplied to the heating coil 7 from the inverter 6 connected to the heating coil 7, and a high-frequency magnetic field generated from the heating coil 7 is supplied to the pan by this high-frequency current. .

  Therefore, an eddy current is generated in the surface layer portion of the pan 9, and heat is generated by the eddy current and the high frequency resistance of the object to be heated.

  Here, the weight detection means 4 is configured to fix and attach a sensor made of a strain gauge to the lower surface of the plate 10 and detect the deflection of the plate by the weight. A method of detecting a change in the capacitance by changing the distance between the opposed electrodes is also possible. Moreover, you may measure using a weight detection means other than this.

  According to this configuration, the weight can be detected by the weight detection unit 4 while being loaded on the plate 10, and the detection result can be displayed or notified by the weight display unit 5 of the heating cooker body. The weight of the cooked food can be measured, and cooking can be performed by adding an appropriate amount according to the recipe or the like.

  Also, what is usually cooked after measuring the amount using another container or the like can be done with the pan placed directly, so it is not time-consuming. Furthermore, when adding a seasoning or the like, the amount to be added can be measured, so there is no need to use a measuring spoon or the like.

  As described above, in the present embodiment, the weight is detected by the weight detection means in a state where an object to be heated such as a pan containing the cooked material is loaded on the plate, and the detection result is the weight of the heating cooker body. Since it can be displayed or notified on the display unit, it is possible to measure the weight of the cooked food before cooking, can be cooked with an appropriate amount according to the recipe etc., cooking without failure, It is possible to provide an easy-to-use heating cooker that does not consume useless time or useless power due to failure.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a configuration diagram of a cooking device according to the second embodiment of the present invention, and shows a configuration of a built-in type cooking device.

  In FIG. 3, the upper surface of the main body 13 of the cooking device is a plate 14 made of crystallized glass. A heating coil 15a, a heating coil 15b, and a heating coil 15c, which are heating means, are disposed below the plate 14, and the pan is heated by induction heating.

  Furthermore, the operation part 16a, the operation part 16b, the weight detection means 19 which detects the weight of the pan loaded on the plate 14 and the food, the display means 20 which also displays the weight detection value and the cooking process, etc., the temperature of the pot Temperature detecting means 21a and temperature detecting means 21b are provided.

  FIG. 4 is a circuit block diagram of a heating cooker according to the second embodiment of the present invention.

  The temperature detection means 21a detects infrared rays matched with the temperature of the pan and converts it into temperature. The control means 23 controls the heating power to the pot 9 from the state of each input (the operation part 16a, the weight detection means 19, and the temperature detection means 21a).

  About the cooking-by-heating machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The weight detection configuration and the operation of induction heating cooking in a state where the pan is loaded are the same as those in the first embodiment. During cooking, the temperature detecting means 21a inputs the temperature at which infrared rays from the pan are detected to the control means 23. At the same time, the weights of the pan and the food loaded on the control means 23 are input from the weight detection means 19.

  In this embodiment, the weight detection means 19 is one by three burners, but may be installed by each burner.

  With this configuration, it is possible to use both the temperature detection means and the weight detection means. For example, when food is added during cooking, the temperature of the pan decreases and the detected temperature generally decreases. In this case, the power is increased to control the temperature to be constant.

  In that case, if the additional amount is determined to be large from the detected weight of the weight detection means, the thermal power is increased to shorten the time until the temperature returns, while if the additional amount is determined to be small, the thermal power The temperature is controlled to be small so that the overshoot of the temperature rise is reduced.

  Further, when only the weight increases without lowering the temperature, it is determined that the lid is placed, and the amount of evaporation from the pan is reduced, so that the heating power can be maintained or reduced to control.

  In particular, when stewed, the temperature is constant at 100 ° C., so if you put more heating power than necessary, it will lead to overcooking and failure.

  In addition, when the detected temperature is constant and the weight value decreases, it is determined that the user has taken out the contents, and the heat capacity is reduced as the contents are reduced. Is also possible.

  Therefore, in these controls, by using in combination with the temperature detection means, it can be estimated whether the food being cooked has been taken out or whether the lid is removed or removed, and the heating power is controlled according to the state. Therefore, cooking can be performed without failure, and wasteful time and wasteful power due to the failure can be eliminated and user convenience can be improved.

  As described above, the cooking device according to the present invention can be cooked by measuring the weight of the food before cooking or adding an appropriate amount according to the recipe, etc., by the weight detection means. Since accurate cooking and reproducible cooking can be performed, it is effective for the use of a heating cooker.

DESCRIPTION OF SYMBOLS 1 Heating cooker 3 Operation part 4, 19 Weight detection means 5 Weight display part 6 Inverter 7, 15a, 15b, 15c, 25 Heating coil 9 Pan 10, 14, 24 Plate 11 Control means 13 Main body 16a, 16b Operation part 20 Display Means 21a, 21b Temperature detection means 23 Control means 26 Operation unit 27 Body

Claims (3)

A heating means for heating an object to be heated such as a pan containing cooked food, a top plate for placing the object to be heated, a control means for controlling the heating means, and weight detection for detecting the weight of the top plate And a weight display means for displaying the weight value of the object to be heated calculated from the weight value detected by the weight detection means. 2. A temperature detection means for detecting the temperature of the object to be heated is provided, and the electric power of the heating means is controlled from the control means based on the weight value detected by the weight detection means and the detected temperature of the temperature detection means. The heating cooker described in 1. When the detected temperature is substantially constant and the weight value increases, the power of the heating means is maintained.When the detected temperature decreases, when the weight value increases, the power of the heating means is increased and the detected temperature is constant. A heating cooker that reduces the power of the heating means when the weight value drops.