JP2008234976A - Heating cooking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To change cooling capacity of a cooling means, and to adjust a noise level at a user's judgment according to use environments. <P>SOLUTION: The cooking device is provided with a pan 1 to put a cooked object in, a heating means 3 heating the pan 1, a temperature-sensing means 4 measuring temperature of constituent components of the heating means 3, a cooling means 6 cooling the constituent components of the heating means 3, a control part 5 controlling the heating means 3 and the cooling means 6, a heating key 7 for starting a heating operation by the heating means 3, a fire-power key 10 changing fire power at a heating mode, and a cooling level changing key 9 for changing cooling capacities of the cooling means 6. The control part 5 changes the cooling capacity of the cooling means 6 by an operation of the cooling level changing key 9. With this, a cooling capacity of the cooling means 6 as well as a noise level can be changed by a user's operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cooking device that heats and cooks an object to be heated such as a pan.

  Conventionally, as this type of induction heating cooker, for example, there has been one described in Patent Document 1. FIG. 3 shows a conventional induction heating cooker described in the publication. In FIG. 3, a pot 101 that is an object to be heated, a top plate 102, a heating coil 103 provided below the top plate 102, and an inverter 104 for supplying high-frequency current to the heating coil, are constituent parts of the inverter 104. An aluminum radiator 106 is attached to the power switching element 105.

  A cooling fan 107 for cooling the heat generating component, a power cord 108, and a cooling fan speed control means 109 for controlling the voltage supplied to the cooling fan 710 to control the speed of the cooling fan 107 are provided. The cooling fan speed control means 109 is operated according to a temperature detected by a thermistor which is a temperature detection means 110 attached to the radiator 106.

In the above configuration, when the power is turned on and the heating coil 103 is energized, the pan 101 is heated by induction heating and cooking is started. At this time, the power switching element 105 generates heat. This heat generation increases as the output increases, that is, as the current flowing through the heating coil 103 increases. In order to prevent the power switching element 105 from rising in temperature due to its heat generation and being thermally damaged, a radiator 106 is attached and further cooled by a cooling fan 107. Since the noise is generated when the cooling fan 107 is operated, it is necessary to suppress the speed of the cooling fan 107 as much as possible to reduce the noise. Therefore, the temperature detector 110 is provided in the radiator 106, and the speed of the cooling fan 107 is varied according to the detected temperature. That is, when the detected temperature is low, the speed of the cooling fan 107 is reduced, the cooling capacity is reduced, and at the same time the level of noise generated from the cooling fan 107 is kept low.
JP-A-6-45058

  However, in the conventional configuration, the noise is low when the detection temperature is low, regardless of the intention of the user, but the noise of the cooling fan 107 increases when the detection temperature is high, and the noise changes arbitrarily. there were.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a heating cooker that can change the cooling capacity of the cooling means at the user's discretion and can adjust the noise depending on the use environment of the heating cooker. To do.

  In order to solve the above-described conventional problems, a heating cooker according to the present invention includes a heating unit that heats a pan in which a food is to be put, a temperature detection unit that measures the temperature of a component of the heating unit, and a heating unit. Cooling means for cooling component parts, control means for controlling the heating means and the cooling means, a heating key for starting a heating operation by the heating means, a thermal power key for changing the heating power in the heating mode, and the cooling means A cooling change key for changing the cooling capacity of the cooling means, and the controller changes the cooling capacity of the cooling means by operating the cooling change key.

  Thereby, the cooling capacity of the cooling means can be changed by the operation of the user, and the noise can be adjusted.

  The heating cooker of this invention can change the cooling capacity of a cooling means by a user's operation, and can adjust a noise.

  1st invention is a heating means which heats the pot which puts a foodstuff, the temperature detection means which measures the temperature of the component of the said heating means, the heating key which starts the heating operation by the said heating means, and heating mode A heating power key for changing the heating power, a cooling means for cooling the components of the heating means, a cooling change key for changing the cooling capacity of the cooling means, and a controller for controlling the heating means and the cooling means. The control unit is a cooking device adapted to change the cooling capacity of the cooling means by operating the cooling change key, so that the cooling capacity of the cooling means can be changed by the operation of the user, and the noise is adjusted. be able to.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the control unit controls the cooling capacity by operating the cooling change key when the temperature of the component of the heating means measured by the temperature detecting means is equal to or higher than the first temperature. If the cooling capacity of the cooling means is reduced even if the user operates the cooling change key to reduce the noise, the cooling capacity of the cooling means will be reduced if it leads to a malfunction of the equipment. Can prevent the failure of the equipment.

  According to a third aspect of the invention, in particular, in the first or second aspect of the invention, when the temperature of the component of the heating unit measured by the temperature detection unit becomes higher than the second temperature, the temperature control for reducing or stopping the heating power of the heating unit And the controller increases the second temperature of the temperature adjusting means when the cooling capacity set by the cooling change key is high, and heats the second temperature of the temperature adjusting means when the cooling capacity is low. By changing the components of the means to a low temperature that can be cooled, even if the noise, that is, the cooling capacity of the cooling means continues to be reduced, the heating means components are overheated and the cooker is free from failure. The user can cook with priority on noise suppression even if the thermal power is substantially reduced.

  According to a fourth aspect of the invention, in particular, in any one of the first and second aspects of the invention, when the cooling capacity set by the cooling change key is high, the control unit increases the maximum value of the thermal power that can be changed by the thermal power key. However, when the cooling capacity is low, the components of the heating means are changed to low heat power that can be cooled, so that the user operates the cooling change key so as to reduce noise, that is, the cooling capacity of the cooling means. Even if you try to raise the thermal power above the predetermined thermal power with the thermal power key, the thermal power can be prevented from rising, and even if the thermal power cannot rise above the predetermined thermal power, the user can cook with priority on noise suppression it can.

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

(Embodiment 1)
FIG. 1 shows a heating cooker according to the first embodiment of the present invention.

  As shown in FIG. 1, the heating cooker according to the present embodiment includes a pan 1 into which food is put, a top plate 2 made of heat-resistant glass on which the pan 1 is placed, and the pan 1 over the top plate 2. A heating means 3 such as a lamp heater for heating or an electromagnetic induction heating coil; a temperature detecting means 4 comprising a temperature sensor for measuring the temperature of a heat generating component such as a power element constituting the heating means 3; The thermal power of the heating means 3 is reduced by the temperature detected by the cooling means 6 configured by a cooling fan for cooling the heat generating components, the control unit 5 configured by a microcomputer for controlling the heating means 3, and the temperature detecting means 4 or The temperature adjusting means 8 to be stopped, the heating key 7 that is operated by the user to start the heating mode of the heating power fixing control, the cooling change key 9 to change the cooling capacity of the cooling means 6, and the heating hand Such as thermal key 10 to change the 3 of firepower by the configuration. The thermal power key 10 includes an up key 11 for increasing the thermal power and a down key 12 for decreasing the thermal power.

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

  FIG. 2 shows an example of an operation sequence according to the embodiment of the present invention, which will be described below with reference to FIG.

  First, when the pan 1 containing the food is placed at a predetermined position on the top plate 2 and the start of cooking is instructed by the heating key 7 at time t1, the heating for performing the fixed heating power control as shown in FIG. The control unit 5 energizes the heating means 3 so that the heating power level is 4, and heats the pan 1 through the top plate 2. The cooling capacity of the cooling means 4 is strong at the start of the heating mode. However, when the cooling change key 9 is operated at time t2, the cooling capacity of the cooling means 4 can be changed to a low noise mode in which the cooling capacity changes to weak wind. Since cooking can be performed in a quiet environment, particularly in the case of a tabletop-type cooker, meals are often made while cooking, and it is possible to eat in a quiet environment.

  Thereafter, when the low noise mode is canceled by operating the cooling change key 9 at time t3, the cooling means 6 operates in a strong wind.

  Here, the temperature of the power element which is a component of the heating unit 3 measured by the temperature detection unit 4 is measured, and at time t4, the temperature measured by the temperature detection unit 4 is preset as the temperature T1. The temperature is over. In this case, even if the cooling change key 9 is operated to make a transition to the low noise mode again, the control unit 5 does not accept the transition to the low noise mode, and the operation of the cooling means 6 remains strong. . The reason for such an operation is that if the cooling capacity of the cooling means 6 is lowered while the power element or the like is already at a high temperature, the element temperature may suddenly rise and cause a failure.

  At time t5, the thermal power is reduced from 4 to 3 by operating the thermal power key 10. Then, the measured temperature of the temperature detecting means 4 decreases and is lower than the first temperature at time t6. At time t6, the cooling change key 9 is operated to shift to the low noise mode.

  Thereafter, when the thermal power key 10 is operated to increase the thermal power setting from 3 to 4 at time t7, the temperature of the element measured by the temperature detection means 4 increases. However, in the low noise mode, the temperature adjustment means 8 The second temperature, which is the regulated temperature, is operated at a temperature T3 lower than the temperature T2 when the cooling means 6 is operating in strong wind, and is measured by the temperature detection means 4 from time t7 to time t8 about twice. Since the temperature exceeds the temperature T3, the temperature adjusting means 8 stops the heating means 3 twice.

  Here, in the low noise mode in which the cooling means 6 operates in a weak wind, it is impossible to shift from the thermal power 4 or less to the thermal power 5, and the thermal power key 10 is operated while the low noise mode is continued at time t8. Even if it is going to raise a thermal power from 4 to 5, the control part 5 does not receive an input, but the thermal power setting is still 4. The reason for such an operation is that when the heating power is increased from 4 to 5 in the low noise mode, the temperature increasing speed increases, and the second temperature, which is the set temperature of the temperature adjusting means 8, is lower than the temperature T2. This is because even if the temperature is changed to T3, it may be insufficient to prevent the temperature of the element from rising excessively. From the same point of view, it is considered that the same effect can be obtained even if the operation of the cooling change key 9 is not switched to the low noise mode in which the operation of the cooling means 6 is a weak wind when the thermal power setting is 5. It is done.

  Further, at time t9, the low noise mode is canceled and the operation of the cooling means 6 is made strong, so that the thermal power can be increased from 4 to 5 by operating the thermal power key 10 at a later time t10.

  As described above, in the present embodiment, the cooling capacity of the cooling means 6 is changed by the user's operation by changing the cooling capacity of the cooling means 6 by operating the cooling change key 9 in the heating mode. Yes, you can adjust the noise.

  Further, when the temperature of the component parts of the heating means 3 measured by the temperature detecting means 4 is equal to or higher than the first temperature, the cooling capacity is not lowered by the operation of the cooling change key 9, so that the user can make noise. If the cooling capacity of the cooling means 6 is reduced even if the cooling change key 9 is operated to reduce the equipment, the cooling capacity of the cooling means 6 cannot be lowered if the equipment malfunctions. Can be prevented.

  Further, by changing the adjustment temperature of the temperature adjusting means 8 according to the cooling capacity set by the cooling change key 9, even when the noise, that is, the cooling capacity of the cooling means 6 continues to be lowered, the heating means 3 It is possible to make the cooking device free from failure by suppressing overheating of the components, and the user can cook by giving priority to the suppression of noise even when the thermal power is substantially reduced.

  Further, by changing the maximum value of the heating power of the heating means that can be changed by the heating power key 7 in accordance with the cooling capacity set by the cooling change key 9, the user can make noise, that is, the cooling capacity of the cooling means 6. When the cooling change key 9 is operated so as to decrease the temperature, the heating power can be prevented from increasing even if the heating power is increased to a predetermined heating power or more by the heating key, and the user can increase the heating power to a predetermined heating power or more. Even without it, cooking can be done with priority on noise suppression.

  In the present embodiment, the heating means 3 is configured to be heated through the top plate 2 such as electromagnetic induction heating, but the pan 1 is directly heated without using the top plate 2 such as an electric heater or gas fire. Even when a simple heat source is used, the same effect can be obtained as long as a configuration for cooling the components is provided.

  Further, although various keys are used as the input means of the present embodiment, any key can be used as long as the input means serves to convey the user's intention to the control unit 5.

  As described above, the heating cooker according to the present invention can change the cooling capacity of the cooling means by the user's operation and can adjust the noise, so it can be applied to various cookers regardless of the heat source. it can.

The block diagram of the heating cooker in the 1st Embodiment of this invention Operation sequence diagram of an example in the first embodiment of the present invention Block diagram of a conventional cooking device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pan 3 Heating means 4 Temperature detection means 5 Control part 6 Cooling means 7 Heating key 8 Temperature adjusting means 9 Cooling change key 10 Thermal key

Claims (4)

Controlling the heating means for heating the pan for putting the food, the temperature detecting means for measuring the temperature of the components of the heating means, the cooling means for cooling the components of the heating means, the heating means and the cooling means A heating key for starting the heating operation by the heating means, a heating power key for changing the heating power of the heating mode, and a cooling change key for changing the cooling capacity of the cooling means, A cooking device that changes the cooling capacity of the cooling means by operating a cooling change key. 2. The cooking device according to claim 1, wherein when the temperature of the component of the heating unit measured by the temperature detection unit is equal to or higher than the first temperature, the control unit does not decrease the cooling capacity by operating the cooling change key. . When the temperature of the component of the heating means measured by the temperature detecting means is higher than the second temperature, the temperature control means is provided to reduce or stop the heating power of the heating means, and the control unit is the cooling set by the cooling change key. When the capacity is high, the second temperature of the temperature adjusting means is increased, and when the cooling capacity is low, the second temperature of the temperature adjusting means is changed to a low temperature capable of cooling the components of the heating means. Item 3. A cooking device according to item 1 or 2. When the cooling capacity set by the cooling change key is high, the control unit increases the maximum value of the thermal power that can be changed by the thermal power key, and when the cooling capacity is low, the control unit changes the components of the heating means to a low thermal power that can be cooled. The cooking device according to claim 1 or 2, wherein the cooking device is configured as described above.

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