JP2011175888A - Heat cooking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat cooking apparatus that can detect and notify clogging of an air inlet and an exhaust outlet. <P>SOLUTION: The heat cooking apparatus includes: a cooking apparatus body 12 having a heat source 11; a fan 15 that sends air to and forcibly cools a heating part the inside of the cooking apparatus body 12; a motor 71 that rotates the fan 15; a rotatable motor driving part 72 that variably drives rotation number of the motor 71; a rotation number measurement part 73 that measures the rotation number of the motor 71; a rotation number control part 74 that controls the motor driving part 72 so that a value output by the rotation number measurement part 73 becomes a rotation number setting value; a control circuit 20 that supplies power source of the heat source 11 or the motor 71; an air inlet 13 that is an entrance of a cooling air; an exhaust outlet 17 that is an exit of a cooling air; and a current measurement part 75 that measures a current value of a power source that is supplied to the motor 71 from the control circuit 20. The heat cooking apparatus has a means for notifying the clogging of the air inlet 13 or the exhaust outlet 17 and can notify failure of the cooling fan due to the clogging of the air inlet and the exhaust outlet when the value output by the current measurement part 75 becomes a current set value. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to notification of clogging of an intake / exhaust port of a fan for cooling a heat generating part in a heating cooker.

  Conventionally, this type of cooking device is provided with a temperature detection means for detecting the temperature of the switching element, and is configured to determine that the cooling fan is causing an abnormality based on the detected element temperature (for example, , See Patent Document 1).

Japanese Patent Laid-Open No. 2004-356055

  However, the above-described conventional configuration has a problem that not only an abnormality of the cooling fan but also an erroneous detection of an abnormal rotation of the cooling fan even when the temperature of the element increases due to other factors. There are various conditions for increasing the temperature of the element. For example, the temperature of the element increases when the outside air temperature in which the device is installed is high. Further, a heat radiating means such as a heat sink is usually attached to a heat generating member such as a switching element, and the temperature rise value varies depending on variations in the heat radiating condition (contact thermal resistance). As described above, it is very difficult to accurately detect an abnormality of only the cooling fan based on the element temperature. Further, it takes a certain amount of time for the temperature of the element to rise, and there is a problem that abnormality of the cooling fan cannot be detected instantaneously.

  The present invention solves the above-described conventional problems, and in the cooking device of the present invention, the rotation speed measurement unit that measures the rotation speed of the cooling fan, and the value output from the rotation speed measurement section is the rotation speed setting value. A rotation speed control unit that controls the motor drive unit and a current measurement unit that measures the current value of the power source supplied to the motor from the control board, and the value output by the current measurement unit is the current set value It is an object of the present invention to provide an easy-to-use and highly reliable heating cooker with high cooling efficiency and high commercial value with a configuration having an air inlet and exhaust port clogging notification means.

  In order to solve the above-described conventional problems, a heating cooker according to the present invention includes a cooker body having a heat source, a fan for blowing and forcibly cooling a heat generating portion in the cooker body, a motor for rotating the fan, and a motor. The motor drive that can be driven with variable rotation speed, the rotation speed measurement section that measures the rotation speed of the motor, and the motor drive section that controls the output value of the rotation speed measurement section to be the rotation speed setting value Rotation speed control unit, control board for supplying power to the heat source and motor, intake port for cooling air inlet, exhaust port for cooling air outlet, and current value of power source supplied from the control board to the motor A current measuring unit that measures the air intake, and when the value output from the current measuring unit reaches the current set value, the air intake and exhaust port clogging notification means are provided.

  Thereby, it is possible to notify the abnormality of the cooling fan due to the clogging of the intake port and the exhaust port. As a result, it is possible to prevent the internal component from being used even though the cooling performance of the internal parts is low due to the abnormality of the cooling fan, or to reduce the internal component, thereby improving the durability and reliability of the device.

The heating cooker of the present invention can reliably notify the user of the device of the fan abnormality due to the clogging of the intake port and the exhaust port, increase the cooling efficiency of the internal parts, and has a high durability and product value. Can be high.

Detailed view of heating cooker in Embodiment 1 of the present invention FIG. 3 is a relationship diagram between the air blowing performance and the current value in the first embodiment of the present invention Detailed view of the clogging detection method in Embodiment 1 of the present invention Detailed view of clogging detection method in Embodiment 2 of the present invention Detailed view of clogging detection method in Embodiment 3 of the present invention Detailed view of clogging detection method in Embodiment 4 of the present invention Detailed view of clogging detection method in Embodiment 5 of the present invention Detailed view of intake configuration in Embodiment 6 of the present invention Detailed view of intake configuration in Embodiment 7 of the present invention Detailed view of clogging detection method in Embodiment 8 of the present invention Detailed view of clogging detection method in Embodiment 9 of the present invention

  The first invention is a cooker body having a heat source, a fan that blows and forcibly cools a heat generation part in the cooker body, a motor that rotates the fan, and a motor drive that can be driven by changing the number of rotations of the motor. A rotation speed measurement section that measures the rotation speed of the motor, a rotation speed control section that controls the motor drive section so that a value output from the rotation speed measurement section becomes a rotation speed setting value, and a heat source and a motor power source A control board for supplying cooling air, an air inlet serving as an inlet for cooling air, an exhaust air outlet serving as an outlet for cooling air, and a current measuring unit for measuring a current value of a power source supplied from the control board to the motor. When the value output from the measurement unit becomes the current set value, the cooking device has a means for notifying the clogging of the intake port and the exhaust port. Thereby, it becomes possible to notify the user of clogging of the air inlet and the filter. The user can accurately know the timing of air intake and filter cleaning and clogging of the air intake and exhaust. Therefore, it is possible to provide a cooking device that is easy to use and has high reliability and high commercial value.

  In particular, the second invention has a function of setting the number of revolutions of the heat source to be different depending on the heating power of the heating cooker, and setting the number of revolutions as the heating power increases. The value is larger and the rotational speed setting value is smaller as the thermal power is smaller. Thereby, it is possible to detect clogging appropriately for each thermal power, and it is possible to provide a heating cooker having a high commercial value with low noise, good usability, and high reliability of internal components.

  In particular, the third invention has a function of setting the current set value to be different depending on the heating power of the cooking device in the second invention. The larger the heating power, the larger the current setting value, and the smaller the heating power, the current setting value. Is made smaller. Thereby, it is possible to detect clogging appropriately for each thermal power, and it is possible to provide a heating cooker having a high commercial value with low noise, good usability, and high reliability of internal components.

  According to a fourth aspect of the present invention, in particular, in any one of the first to third aspects, the current setting value is determined based on a value output from the current measurement unit when the cooking device is first energized. Therefore, an appropriate setting value can be determined for each device, and the clogging can be reliably detected. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

According to a fifth aspect of the invention, in particular, in the third aspect of the invention, the current setting value in each thermal power is determined on the basis of the value output by the current measurement unit when the heating cooker is first energized with each thermal power. In addition, it is possible to determine an appropriate set value for each thermal power and reliably detect clogging. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

  In a sixth aspect of the present invention, in particular, in any one of the first to fourth aspects of the present invention, by further providing a filter at the intake port, the food, oil smoke, splashes, and water vapor are difficult to be sucked into the cooker body. Become. As a result, it is possible to provide a cooking device that is easy to use, has a high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

  In the seventh aspect of the invention, in particular, in the fifth aspect of the invention, the filter has a detachable structure and is easy to clean when the filter is clogged. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

  In the eighth invention, in particular, in any one of the first to sixth inventions, the clogging notification means is a notification by voice, so that it is possible to notify the user of clogging of the intake port and the filter. Become. Even if the user is blind, the user can accurately know the timing of the intake and filter cleaning or clogging of the intake and exhaust. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

  In particular, the ninth aspect of the present invention includes the automatic cooking function according to any one of the first to eighth aspects, and notifies the clogging after the automatic cooking is completed. It becomes possible to notify the user of clogging. In addition, the user can accurately know the timing of the intake and filter cleaning without disturbing cooking. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

  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)
FIGS. 1 to 3 and 8 show a detailed view of the heating cooker in the first embodiment of the present invention, details of the relationship between the fan blowing performance and current value, and details of clogging notification.

  A cooker body 12 having a heat source 11, a fan 15 for blowing and forcibly cooling a heat generating portion 14 in the cooker body 12, a motor 71 for rotating the fan 15, and a motor 71 that can be driven by changing the number of rotations. The motor drive unit 72 and the motor drive unit 72 so that the rotation speed of the motor 71 is measured with a rotary encoder, for example, so that the value output from the rotation speed measurement unit 73 and the value output from the rotation speed measurement unit 73 become the rotation speed setting value. , A control board 20 that supplies power to the heat source 11 and the motor 71, an intake port 13 that serves as an inlet for cooling air, an exhaust port 17 that serves as an outlet for cooling air, and a control board 20 A current measuring unit 75 for measuring the current value of the power supplied from the motor to the motor 71, and when the value output from the current measuring unit 75 reaches the current set value, the intake port 13 and the exhaust port 17 are clogged. Providing a means. The effect | action is demonstrated below about the clogging alerting | reporting structure of the inlet / outlet of the heating cooker comprised as mentioned above.

Heating cookers that use a flame such as gas as a heat source, induction heating coils that generate a magnetic field to induction-heat pans, etc., and heating cookers that have a heat source that generates Joule heat by flowing current through an electrical resistor In this case, the control board that controls the operation of the cooker is heated by the heat generated by the heat source. Furthermore, in a heating cooker that heats a pan with an induction heating coil, the induction heating coil and the control board self-heat due to the current flowing on the induction heating coil and the circuit of the internal control board and the electrical resistance of the circuit. In order to lower the temperature of the induction heating coil and the components on the control board to below the heat resistant temperature, a forced air cooling type cooling configuration is required in which the air outside the cooker is sucked, the internal components are cooled, and then exhausted. As shown in FIG. 2, the ventilation performance curve of the fan 15 is uniquely determined as the performance unique to the fan 15. The left vertical axis of the air blowing curve is the pressure and indicates the pressure for pushing cooling air into the air blowing path. The horizontal axis indicates the air volume of the fan 15. The right vertical axis represents the current value supplied to the motor 71 that rotates the fan 15. There are two curves representing the performance of the fan 15, one showing the relationship between the pressure of the fan 15 and the air volume, and the other showing the relationship between the air volume and the current. The load curve also shows two curves, a load curve when the intake port 13 and the exhaust port 17 are clogged and a normal time. In the normal state, the fan 15 operates at the intersection of the air blowing performance of the fan 15 and the normal load curve, that is, the operating point 1 in the figure in which the air blowing performance of the fan 15 and the load curve of the device are balanced. When the air inlet 13 and the filter 30 are clogged, the load on the device increases and the load curve of the device rises to the load curve at the time of clogging in the figure. If the pressure is not higher even at the same air volume, the load and the blowing performance of the fan 15 are not balanced. Therefore, it is balanced at the position of the operating point 2. When clogged, the load applied to the fan 15, that is, the pressure, increases from the normal time, while the air volume decreases because the intake and exhaust are blocked. If the currents supplied to the motor 71 that rotates the fan 15 at the operating point 1 and the operating point 2 are A1 and A2, respectively, A1 ≠ A2 and A1> A2. At this time, at the operating points 1 and 2, the motor 71 is incorporated in the motor driving unit 72 to control the motor 71 so as to keep the rotational speed constant, and has a function of adjusting the current value so as to keep the rotational speed of the motor 71 constant. Therefore, the current value flowing through the motor 71 changes. This change in current value is linked to the load applied to the motor 71, that is, the change in intake pressure loss at the time of clogging. Clogging is detected by utilizing the difference between the current supplied to the motor 71 that rotates the fan 15 at the time of clogging and the current during normal operation. It has a fan 15, a motor 71 that rotates the fan 15, and a current measurement unit 75 that measures a current value of power supplied from the control board 20 to the motor 71. When the current value (Ai) obtained by the current measuring unit 75 supplied to the motor 71 exceeds a preset value At (A1>At> A2), the clogging of the intake port is notified. As a result, the user is informed that the intake pressure loss is increasing, and the clogging of the filter 30 is informed to facilitate cleaning. As a result, it is possible to accurately notify the opportunity for the user to clean the filter 30. In addition to detecting clogging of the filter 30, it is possible to notify the user of clogging even when a cloth or sheet such as an apron or a cloth is blocking the air inlet or exhaust port. FIG. 3 shows an example of an algorithm from heating start to clogging notification. Simultaneously with the start of heating, the control board 20 supplies electric power and a rotational speed set value to the motor drive unit 72. The motor drive unit 72 causes a current to flow to the motor 71 and the motor 71 rotates. The rotational speed of the motor 71 is detected by the rotational speed measuring unit 73 and the difference between the motor rotational speed and the rotational speed set value is supplied to the rotational speed control unit 74. The rotation speed control unit 74 performs feedback control so that the rotation speed of the motor operates at a constant rotation speed with the rotation speed setting value, and adjusts the current supplied to the motor 71. When the rotational speed does not reach the rotational speed setting value, the current is increased, and when the rotational speed becomes equal to or higher than the rotational speed setting value, the motor 71 finally operates at a constant rotational speed when control is performed to reduce the current value. After the rotational speed of the motor 71 is stably operated at the rotational speed setting value, the current measuring unit 75 detects the current flowing through the motor and measures it in real time. When the current value Ai measured by the current measuring unit 75 falls below a preset current set value At, clogging is notified. As a condition for determining whether the rotation speed of the motor 71 is operating stably at the rotation speed setting value, as an example, the difference between the rotation speed setting value of the motor 71 and the rotation speed when operating is the rotation speed setting value. It is desirable to discriminate that it is operating stably at a constant rotational speed when it is about 0.1 to 10% or less. This value is desirable because the rotational speed variation between parts during mass production of the motor 71 is about 0.1% to 10%. The same effect can be obtained by using a multi-blade fan (sirocco fan), a cross flow fan, a mixed flow fan, a propeller fan, a turbo fan, a radial fan, or the like as the fan 15. The same effect can be obtained not only in the built-in type cooking device incorporated in the kitchen but also in the stationary type cooking device installed on the table. Further, the clogging notification means may be a method of visually informing the user by using an LED, a liquid crystal, or the like, or a method of audibly informing by a voice or the like. In addition to notifying the user, a clogging removing unit may be provided on the device side to automatically remove clogging. The clogging removing means is provided with a brush or spatula shape that eliminates clogging by using an operating force when the user uses the movable operation unit 6 or another power source such as a motor or a coil, and contacts the filter 30. It is good also as a structure which removes the deposit | attachment of the filter 30 physically by moving at the same time. By providing clogging notification means on top of such automatic clogging avoidance means, if dust or dust accumulates at the intake / exhaust port more than automatically eliminating clogging, the user It is possible to accurately notify clogging of the filter 30 and prompt cleaning. As described above, the efficiency of intake air is improved by cleaning and automatic cleaning means, so it becomes possible to improve the cooling efficiency of internal members, and the reliability of the internal parts of the cooker is increased and the usability is also improved To do.

(Embodiment 2)
FIG. 4 is a detailed view of the clogging detection method according to the second embodiment of the present invention. Since the basic configuration is the same as that of the first embodiment, only the difference in configuration will be described.

  A plurality of heat sources of heat sources are further provided, and a plurality of rotation speed setting values are set so as to differ depending on the heat power of the heating cooker. For example, it is conceivable that the rotational speed setting value is increased when the thermal power is large, and the rotational speed setting value is decreased when the thermal power is small. Necessary to increase the rotational speed setting value as the heating power increases, so the amount of air required to increase the amount of heat generated inside the device increases. Conversely, as the heating power decreases, the amount of heat generation inside the device decreases. Therefore, the rotational speed setting value is reduced to reduce the air volume. When the rotational speed is large, the noise is large, and conversely, when the rotational speed is small, the noise can be suppressed small. By appropriately setting the rotation speed setting value in accordance with the heating power, it is possible to provide a cooking device with low noise and high usability that is highly reliable and has high commercial value.

(Embodiment 3)
FIG. 5 shows a detailed view of the clogging detection method according to the third embodiment of the present invention. In addition to the second embodiment, the current set value is set to be different depending on the heating power of the cooking device. In addition to providing an easy-to-use heating cooker that suppresses noise while ensuring the air volume at the minimum required number of rotations by providing a plurality of rotations of the motor 71 according to the thermal power, a threshold value for detecting clogging for each thermal power By providing the current set value, the clogging can be detected and notified appropriately even if cooking is performed with any heating power. For example, the current set value can be increased when the thermal power is large, and the current set value can be decreased when the thermal power is small. Necessary to increase the rotational speed setting value as the heating power increases, so the amount of air required to increase the amount of heat generated inside the device increases. Conversely, as the heating power decreases, the amount of heat generation inside the device decreases. Therefore, the rotational speed setting value is reduced to reduce the air volume. When the rotational speed is large, the current supplied to the motor 71 is large. Conversely, when the rotational speed is small, the current is small. Therefore, it is necessary to make a clogging notification by determining clogging detection by corresponding a plurality of current setting values for each rotation number of the motor 71. Thereby, it is possible to provide a heating cooker that is easy to use, has high cooling efficiency for internal components, is highly reliable, has low noise, and has a high commercial value.

(Embodiment 4)
FIG. 6 is a detailed view of the clogging detection method according to the fourth embodiment of the present invention. Since the basic configuration is the same as that of the third embodiment, only the difference in configuration will be described.

As shown in FIG. 6, by determining the current setting value based on the value output by the current measuring unit when the cooking device is first energized, it is possible to determine an appropriate setting value for each device and ensure clogging. The configuration can be detected. The current set value may be stored using a storage unit a plurality of times after first energization and set using an average value thereof. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

(Embodiment 5)
FIG. 7 shows a detailed view of the clogging detection method according to the fifth embodiment of the present invention. Since the basic configuration is the same as that of the fourth embodiment, only the difference in configuration will be described.

  By determining the current setting value for each thermal power based on the value output by the current measurement unit when the heating cooker is energized for the first time with each thermal power, it is possible to determine an appropriate set value for each thermal power individually. The clogging can be detected. A plurality of current set values corresponding to the fan 15 rotating at a plurality of rotation speeds in each thermal power may be stored using a storage means for a plurality of times after being energized for the first time, and set using an average value thereof. Good. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

(Embodiment 6)
FIG. 8 shows a detailed view of the intake structure in the sixth embodiment of the present invention. Since the basic configuration is the same as that of the fifth embodiment, only differences will be described.

  By adopting a configuration having the filter 30 at the intake port 13, dust and dust floating in the air, cooked food, oil smoke, splashes, and water vapor are difficult to be sucked into the cooker body. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value. Even if a net-like member is used for the filter 30 or a member made of a resin or a sheet metal member with holes or slits is used, the same effect can be obtained. Thereby, it can be set as the heating cooker with high commercial value with high cooking performance which is rich in durability and reliability.

(Embodiment 7)
FIG. 9 shows a detailed view of the intake configuration in the seventh embodiment of the present invention. Since the basic configuration is the same as in the first to sixth embodiments, only the difference in configuration will be described.

  As shown in FIG. 9, by making the filter 30 detachable, the filter 30 can be easily cleaned when clogged. The same effect can be obtained by using a net-like member for the filter 30 or by using a member having a hole or slit in the sheet metal member.

(Embodiment 8)
FIG. 10 is a detailed view of the clogging detection method according to the eighth embodiment of the present invention. Since the basic configuration is the same as in the first to sixth embodiments, only the difference in configuration will be described.

  As shown in FIG. 10, the clogging notification means is configured to be a voice notification, so that the notification of the clogging of the intake port and the filter 30 can be accurately and easily notified to the user. It becomes possible. Even if the user is blind, the user can accurately know the timing of cleaning the air inlet and the filter 30. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value.

Further, the clogging notification means may be an LED, a liquid crystal, or the like, which may be notified visually to the user, or may be an audible notification method by uttering voice or the like through a speaker. In addition to notifying the user, a clogging removing unit may be provided on the device side to automatically remove clogging. The clogging removing means is provided with a brush or spatula shape that eliminates clogging by using an operating force when the user uses the movable operation unit 6 or another power source such as a motor or a coil, and contacts the filter 30. It is good also as a structure which removes physically by moving simultaneously with making it move. By providing clogging notification means on top of such automatic clogging avoidance means, if dust or dust accumulates at the intake / exhaust port more than automatically eliminating clogging, the user It is possible to accurately notify clogging of the filter 30 and prompt cleaning. Therefore, the efficiency of the intake air is improved by the cleaning or automatic cleaning means, so that the cooling efficiency of the internal member can be improved, and the reliability of the internal parts of the cooker is increased and the usability is improved.

  Further, not only the built-in type cooking device incorporated in the kitchen but also the stationary type cooking device installed on the table, the same effect can be obtained with the above configuration. Thereby, it can be set as the heating cooker with high cooling efficiency of an internal component, and highly reliable commercial value.

(Embodiment 9)
1 and 11 show detailed views of a heating cooker according to a seventh embodiment of the present invention. Since the basic configuration is the same as in the first to sixth embodiments, only the difference in configuration will be described.

  As shown in FIG. 11, the automatic cooking function is further provided so as to notify the detection of clogging after the completion of the automatic cooking, so that the user can check the intake port and the filter 30 without interrupting the automatic cooking. It becomes possible to notify the user of the clogging accurately and easily. For automatic cooking, automatic boiling, cooking rice, fried food temperature control, pottery temperature control, cooking chamber 22 having a door with a front opening, and grill cooking are considered. Thereby, it is possible to provide a cooking device that is easy to use, has high cooling efficiency for internal components, and is highly reliable and has a high commercial value. As the clogging notification means, an LED, liquid crystal, or the like may be used to notify the user visually, or an auditory notification method using voice or the like may be used. In addition to notifying the user, a clogging removing unit may be provided on the device side to automatically remove clogging. The clogging removing means is provided with a brush or spatula shape that eliminates clogging by using an operating force when the user uses the movable operation unit 6 or another power source such as a motor or a coil, and contacts the filter 30. It is good also as a structure which removes physically by moving simultaneously with making it move. By providing clogging notification means on top of such automatic clogging avoidance means, if dust or dust accumulates at the intake / exhaust port more than automatically eliminating clogging, the user It is possible to accurately notify clogging of the filter 30 and prompt cleaning. Therefore, the efficiency of the intake air is improved by the cleaning or automatic cleaning means, so that the cooling efficiency of the internal member can be improved, and the reliability of the internal parts of the cooker is increased and the usability is improved. Further, not only the built-in type cooking device incorporated in the kitchen but also the stationary type cooking device installed on the table, the same effect can be obtained with the above configuration. Thereby, it can be set as the heating cooker with high cooling efficiency of an internal component, and highly reliable commercial value.

  As described above, the heating cooker according to the present invention enables the heating cooker according to the present invention to reliably notify the user of the device of an abnormality of the fan due to clogging of the intake port or the exhaust port. Care is improved by detecting clogging. It can be set as the heating cooker with the high commercial value which has the high cooling efficiency of an internal component, and is rich in durability. Moreover, it becomes possible to maintain the state which raises cooling efficiency for a long term, and it is the structure which can suppress the temperature rise of a member. Therefore, it is easy to use, has high durability of internal parts, and can be increased in commercial value. Therefore, it can be applied to other uses such as cooking equipment that constitutes the same forced air cooling system.

DESCRIPTION OF SYMBOLS 6 Movable operation part 11 Heat source 12 Cooker main body 13 Intake port 14 Exothermic part 15 Fan 17 Exhaust port 20 Control board 22 Cooker 30 Filter 71 Motor 72 Motor drive part 73 Rotational speed measurement part 74 Rotational speed control part 75 Current measurement part

Claims (9)

A cooker body having a heat source, a fan that blows and forcibly cools heat generated in the cooker body, a motor that rotates the fan, a motor drive unit that can be driven by changing the number of rotations of the motor, and rotation of the motor A rotation number measurement unit that measures the number, a rotation number control unit that controls the motor drive unit so that a value output from the rotation number measurement unit becomes a rotation number setting value, and a control board that supplies a heat source and a motor power supply A value that is output from the current measuring unit, including an intake port serving as an inlet for cooling air, an exhaust port serving as an outlet for cooling air, and a current measuring unit that measures a current value of a power source supplied to the motor from the control board A cooking device comprising means for notifying clogging of an intake port and an exhaust port when becomes a current set value. In addition, the heat source has a plurality of thermal powers, and the rotational speed set value has a function of setting differently depending on the thermal power of the cooking device.The larger the thermal power, the larger the rotational speed set value, and the smaller the thermal power, the rotational speed set value. The cooking device according to claim 1, wherein the cooking device is small. The current set value has a function to set differently depending on the heating power of the heating cooker, the current setting value is larger as the heating power is larger, and the current setting value is smaller as the heating power is smaller. Cooking cooker. The cooking device according to any one of claims 1 to 3, wherein the current setting value is determined based on a value output by the current measuring unit when the cooking device is energized for the first time. The cooking device according to claim 3, wherein a current setting value for each heating power is determined based on a value output by the current measuring unit when the heating cooking device is first energized with each heating power. The cooking device according to any one of claims 1 to 4, further comprising a filter at the air inlet. The cooking device according to claim 5, wherein the filter has a detachable structure. The cooking device according to any one of claims 1 to 6, wherein the clogging notification means is notification by voice. The cooking device according to any one of claims 1 to 8, further comprising an automatic cooking function, wherein clogging is notified after automatic cooking is completed.

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