JP2010218707A - Induction heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent over-heating, boiling over, etc., caused by wrong operation. <P>SOLUTION: An induction heating cooker includes a control means 7 to control input power of a high-frequency power supply 4 so that preset heating power or temperature detected by temperature detecting means 6 turns to be a preset temperature and operation means 8 to output a signal to the control means 7 to change designed heating power or the fixed temperature. As the operation means 8 directs so that cooking at a fixed temperature is done in one action, and cooking by fixed heating power is done in two actions, the induction heating cooker can improve safety in that the fixed-temperature cooking where the heating power is restricted when the temperature is high and more heating power is put in when the temperature is low, starts cooking right away, and the fixed-heating-power cooking where the heating power is put in all at once can prevent over-heating or boiling over caused by wrong operation, as a user prepares time to confirm a situation of cooking objects. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an induction heating cooker for general household use.

  Conventionally, this type of induction heating cooker has a heating coil for induction heating disposed below the top plate, and a high-frequency current of several tens of kilohertz is passed through the heating coil, so that the cooking container mounted on the top plate An eddy current loss is generated and heated by this.

FIG. 2 shows a block diagram of a configuration of a conventional general induction heating cooker that can adjust such heating heating power.
In response to an input of heating start by the operation means 101, a signal is transmitted to the control means 102, and the control means 102 outputs to the high frequency power source 103 to heat the cooking container 104 at the heating power level set by the operation means 101.
In the case of temperature setting cooking, the temperature of the cooking container 104 heated by the 105 temperature detection means is detected, and the setting temperature that the user wants to use is selected from a plurality of levels in which the temperature of the load is adjusted by the operation means 101. Then, heating is started by the operation means 101 (see, for example, Patent Document 1).
JP-A-8-315978

  However, in the conventional configuration, because there is a plurality of menus such as heating power setting cooking and temperature setting cooking and there is a menu selection key, the heating power setting cooking is started as one action because the heating power setting cooking is generally used. Therefore, there is a problem that the cooking container is placed in a high temperature state and the cooking start key is accidentally pressed or overheating or spilling may occur.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide an induction heating cooker that can prevent overheating or spillage due to an erroneous operation and can improve safety.

  In order to solve the above-described conventional problems, an induction heating cooker according to the present invention includes a cooking container for heating a cooked food, a top plate on which the cooking container is placed, and an induction magnetic field for heating the cooking container. A high-frequency power source for supplying a high-frequency current to the heating coil to be generated; input power detection means for detecting input power to the high-frequency power supply; temperature detection means for detecting the temperature of the cooked food by a signal from the temperature sensor; Alternatively, control means for controlling the input power of the high-frequency power source so that the temperature detected by the temperature detection means becomes the set temperature, and operation means for outputting a signal to the control means so as to change the design thermal power or the set temperature And the operation means starts cooking temperature setting cooking in one action and starts cooking power setting cooking in two actions.

  As a result, when the temperature is high, the heating power is limited, and when the temperature is low, the temperature setting cooking in which the heating power is applied immediately cooks, and the heating power setting cooking where the heating power enters at once takes time for the user to check the state of the food once. It will be.

The induction heating cooker of the present invention can prevent overheating and spillage due to erroneous operation, and can improve safety.

  A first invention is a cooking container for heating a cooked food, a top plate on which the cooking container is placed, a high-frequency power source that supplies a high-frequency current to a heating coil that generates an induction magnetic field to heat the cooking container, The input power detection means for detecting the input power to the high frequency power supply, the temperature detection means for detecting the temperature of the food by the signal from the temperature sensor, and the set thermal power or the temperature detected by the temperature detection means become the set temperature. The control means for controlling the input power of the high-frequency power source and the operation means for outputting a signal to the control means so as to change the design heating power or the set temperature, the operation means performs temperature setting cooking 1 By starting cooking with an action and starting cooking with two actions, the heating power is limited when the temperature is high, and the heating power is set when the temperature is low. The temperature setting cooking that is performed immediately cooks, and the heating power setting cooking that heats up at a stroke will allow the user to check the state of the food once, preventing overheating and spillage due to incorrect operation, safety Can be improved.

  The second invention is particularly short after cooking is stopped by remembering the cooking mode in which the operation means of the first invention was performed last time, prescribing the time to perform the cooking in one action and remembering it. When the time has elapsed, cooking is resumed with one action, and when the time has elapsed, the initial operation procedure is resumed, and the number of operations at the time of resumption when cooking is temporarily stopped during the same cooking can be reduced. Operability can be improved.

  The third aspect of the invention, in particular, forgets the previous cooking mode when the commercial power supply is cut off for the operation means of the second aspect of the invention, so that the cooking can be resumed with one action only when continuously used. As a result, it is possible to reduce the number of operations at the time of resumption when cooking is temporarily stopped during the same cooking, and the operability can be improved.

  In the fourth aspect of the invention, in particular, when the storage means is provided in the second aspect of the invention and the time for remembering the previous cooking mode is made selectable, the time is shortened when it is desired to forget the previous cooking mode in a short time. If the user wants to forget the previous cooking mode at a slower time, the time is set longer, so that the user's preference can be met and convenience can be improved.

  In particular, the fifth aspect of the present invention includes a notification means in the second or fourth aspect of the invention, and the notification is made when the time for remembering the previous cooking mode is over. The user is informed of the period other than that, so that misuse can be prevented and convenience can be improved.

  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)
FIG. 1 shows a block diagram of an induction heating cooker according to the first embodiment of the present invention.

In FIG. 1, a high-frequency current is supplied to a cooking container 1 for heating a cooked food, a top plate 2 on which the cooking container 1 is placed, and a heating coil 3 for generating an induction magnetic field to heat the cooking container 1. A high-frequency power source 4; an input power detection unit 5 that detects input power to the high-frequency power source 4; a temperature detection unit 6 that detects the temperature of the food by a signal from the temperature sensor; and a set thermal power or the temperature detection unit 6 Control means 7 for controlling the input power of the high-frequency power supply 4 so that the temperature detected in step 1 becomes the set temperature, and operation means 8 for outputting a signal to the control means 7 so as to change the design thermal power or the set temperature. I have.

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

  First, in the case of the heating power setting cooking menu, the induction heating cooker is connected to the commercial power source 10 and the power switch 11 is turned on. A cooking container 1 such as a pan containing food is placed on the top plate 2, a cooking menu is selected using the operation means 8, and a cooking operation is started. The information is transmitted to the control means 7, and the control means 7 obtains input power information from the input detection means 5 and controls the high-frequency current of the high-frequency power source 4. When it is desired to change the thermal power setting, the thermal power setting is increased or decreased by the operating means 8.

  Next, in the case of the temperature setting cooking menu, the induction heating cooker is connected to the commercial power source 10 and the power switch 11 is turned on. A cooking container 1 such as a pan containing food is placed on the top plate 2, and the cooking operation is started using the operation means 8. The information is transmitted to the control means 7, and the control means 7 obtains the input power information from the input detection means 5 and the temperature information of the top plate 2 from the temperature detection means 6 and controls the high-frequency current of the high-frequency power source 4. When it is desired to change the temperature setting, the temperature setting is increased or decreased by the operation means 8.

  As described above, in the present embodiment, the control means for controlling the input power of the high-frequency power source so that the set thermal power or the temperature detected by the temperature detection means becomes the set temperature, and the design thermal power or the set temperature is changed. Operating means for outputting a signal to the control means so as to perform, the operating means starts cooking the temperature setting cooking with one action and starts cooking the heating power setting cooking with two actions, so that the temperature is high. Sometimes the heat setting is limited, and when the temperature is low, the temperature setting cooking that puts the heating power cooks immediately, and the heating power setting cooking that the heating power enters at once will allow the user to check the state of the food once, so it will be due to incorrect operation It is possible to prevent overheating and spillage and improve safety.

In addition, the cooking mode in which the operating means 8 of the present embodiment was performed last time is remembered, the cooking is performed with one action, and the time to remember is defined (1 to 10 minutes or so). When a short time elapses after the stop, cooking is resumed with one action, and when the time elapses, the initial operation procedure is restored, and the number of operations at the time of resumption when the cooking is temporarily stopped during the same cooking is reduced. And operability can be improved.
If the specified time can be changed according to the user's preference and can be stored in the storage means, it is possible to make the user more user-friendly.

  In addition, the present embodiment is provided with a notification means, and when the time to remember the cooking mode performed last time is ended, the user can determine whether the previous cooking mode is remembered or not. It can be easily recognized, thereby preventing misuse and improving convenience.

  As described above, the induction heating cooker according to the present invention can prevent overheating and spillage due to an erroneous operation, and can improve safety, so that a plurality of cooking menus including thermal power setting cooking and temperature setting cooking are provided. It can be applied to other various cooking appliances.

The block diagram of the induction heating cooking appliance in Embodiment 1 of this invention Block diagram of a conventional induction heating cooker

DESCRIPTION OF SYMBOLS 1 Cooking container 2 Top plate 3 Heating coil 4 High frequency power supply 5 Input power detection means 6 Temperature detection means 7 Control means 8 Operation means 9 Display means 10 Commercial power supply 11 Power switch 12 Notification means 13 Storage means

Claims (5)

A cooking container that heats the food; a top plate on which the cooking container is placed; a high-frequency power source that supplies a high-frequency current to a heating coil that generates an induction magnetic field to heat the cooking container; Input power detection means for detecting input power, temperature detection means for detecting the temperature of the food by a signal from the temperature sensor, and the high-frequency power source so that the set thermal power or the temperature detected by the temperature detection means becomes the set temperature. Control means for controlling the input power of the power supply and operation means for outputting a signal to the control means so as to change the design thermal power or the set temperature, and the operation means starts the temperature setting cooking in one action. An induction heating cooker that is supposed to start cooking with two actions of heating power setting cooking. The induction heating cooker according to claim 1, wherein the operating means remembers the cooking mode performed last time and executes the cooking in one action and defines a time to remember. The induction heating cooker according to claim 2, wherein the operation means forgets the previous cooking mode when the commercial power supply is cut off. The induction heating cooker according to claim 2, further comprising a storage unit, wherein the time for remembering the previous cooking mode can be selected. The induction heating cooker according to claim 2 or 4, wherein the induction heating cooker according to claim 2 or 4, further comprising a notification means, wherein the notification is made when the time for remembering the cooking mode performed last time has ended.

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