JP2016217701A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker capable of notifying a user of occurrence of boiling-over during cooking with a cooking stove to draw user's attention.SOLUTION: A heating cooker includes: microwave supply means 50 of supplying microwave energy to a heating chamber 2 and heating an object to be heated; control means 39 of controlling output of microwave from the microwave supply means 50; inbox temperature distribution detection means of detecting temperature of the whole bottom surface of the heating chamber 2; and notification means. When within a fixed range on the bottom surface of the heating chamber 2, as a change amount of a detection temperature in a fixed time from the inbox temperature distribution detection means, a temperature rise value exceeds a threshold, the control means 39 stops heating from the microwave supply means 50, and causes the notification means to give notification.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a cooking device that cooks an object to be heated contained in a heating chamber by using steam or microwave energy.

  As a conventional cooking device, for example, in Patent Document 1, when a steamed food menu is selected in a state where the object to be heated is accommodated in the heating chamber, steam is generated while the object to be heated is heated by energizing the heating means. The water heated in the means is sent as steam into the heating chamber, and when a predetermined cooking time has elapsed, the energization of the heating means and the operation of the steam generating means are stopped, and the notification means informs the user of the end of cooking. Are disclosed.

  Another Patent Document 2 continuously drives the microwave energy from the microwave supply means at a low output according to the heating state of the heated object so that the heated object accommodated in the heated object does not blow out. A cooking device having such control means is disclosed.

JP 2008-32304 A Japanese Patent Laid-Open No. 2002-334776

  The heating cooker of Patent Document 1 is cooking using steam from the steam generating means while heating the object to be heated by the heating means, and when the cooking is completed, the notifying means notifies that. However, if the door that covers the front opening of the heating chamber is opened in an attempt to take out the object to be heated at the end of cooking, water vapor may blow out from the front of the door in some cases, which is highly safe for the user. A cooker was sought.

  Moreover, in the heating cooker of patent document 2, although the to-be-heated material is controlled so that a to-be-heated object does not spill at the time of range cooking, if it spills for some reason, if heating is continued as it is, food will be wasted, Also, the heating chamber becomes gradually dirty.

  An object of the present invention is to provide a heating cooker that does not waste food and does not pollute the heating chamber any more, and informs the user that a spill has occurred during cooking in a range to alert the user. It is to provide.

  In order to achieve the above object, the invention of claim 1 includes a heating chamber that accommodates an object to be heated, and microwave supply means that supplies microwave energy to the heating chamber to heat the object to be heated. Control means for controlling the output of the microwave, temperature detection means for detecting the temperature of the entire bottom surface of the heating chamber, and notification means, and within a certain range of the bottom surface of the heating chamber, from the temperature detection means When the amount of change in the detected temperature in a certain time exceeds a threshold, heating by the microwave supply means is stopped and notification from the notification means is performed.

  According to the first aspect of the present invention, when the amount of change in the detected temperature from the temperature detecting means exceeds a threshold value during cooking in the range where the object to be heated is heated with the microwave energy from the microwave supplying means, The heating by the wave supply means is stopped, and the notification means notifies that the spill has occurred in the heating chamber. In this way, it is possible to provide a heating cooker that does not waste food and does not pollute the heating chamber any more, and can notify the user that a spill has occurred during range cooking and call attention.

It is a front view which shows the external appearance at the time of applying the heating cooker of this invention to a microwave oven. It is the external view shown more typically same as the above. It is the schematic which shows the internal structure which concerns on the steam function and oven function mainly of the microwave oven same as the above. It is the figure which looked at the main body of the state which removed the door same as the above from the front. It is a schematic sectional drawing which shows the internal structure of a microwave oven same as the above. It is a block diagram which shows the electrical structure of a microwave oven same as the above. It is a flowchart which shows an example of the operation | movement procedure relevant to steam cooking same as the above. It is a flowchart which shows an example of the operation | movement procedure relevant to range cooking same as the above. It is an external view which shows typically the state which the spilling generate | occur | produced during range cooking same as the above.

  FIG. 1 is an external view of a microwave oven that is a heating cooker. A heating chamber 2 that accommodates an object to be heated and cooks it is formed inside the main body 1 formed in a rectangular box shape. The heating chamber 2 is wide in the left-right direction and is provided with a door 3 for opening and closing the large front opening. Therefore, the door 3 is provided so as to cover almost the entire front surface of the main body 1, and the lower end portion thereof is pivotally supported so as to be freely rotatable.

  The upper part of the door 3 is provided with a handle 4 for opening and closing which is used when the door 3 is opened and closed, and the lower part of the door 3 is provided with an operation panel unit 5 for display, notification and operation. Yes. The operation panel unit 5 includes a display unit 6 for displaying cooking setting contents, progress status, and the like, as the operation unit 7, a first heating condition setting unit 8 and a second heating condition for setting a heating condition related to cooking. It comprises a setting means 9, a heating start instruction means 10 for instructing the start of heating, and a cancellation instruction means 11 for canceling the setting or stopping cooking. Although not shown, an operation panel PC (printed circuit) board (not shown) on which a microcomputer 51 (to be described later) is mounted is provided on the rear side of the operation panel 5 to control the display means 6 and the operation means 7. Is placed.

  The first heating condition setting means 8 is an electronic touch key, and includes a “mono” key and a “boiled” key for selecting a cooking menu for automatic cooking that does not require setting of cooking time and temperature. In addition, it consists of a “range” key, “oven” key, and “steam” key for selecting manual cooking that requires setting of cooking time, temperature, or output. Configured. The second heating condition setting means 9 detects rotation in order to select a cooking menu other than “mono” or “boiled” in addition to setting the cooking time and temperature in manual cooking. This is a rotatable dial composed of an encoder. The heating start instruction means 10 is a key for starting heating the object to be heated in the heating chamber 2 after setting the heating conditions by the first heating condition setting means 8 or the second heating condition setting means 9. The means 11 is a key for canceling the heating condition and stopping the cooking. These heating start instruction means 10 and cancellation instruction means 11 are mechanical keys (tactile switches).

  The display means 6 includes, for example, a liquid crystal display means 14 that displays the number of cooking menu, temperature, time, output, and the like, and an LED display means 15 that blinks or lights up according to the progress of cooking. .

  FIG. 2 schematically shows the microwave oven shown in FIG. In the figure, reference numeral 16 denotes a notification means provided on the left side of the operation panel unit 5. This notification means 16 is comprised with electronic components, such as a buzzer and a speaker, for example. Here, although the operation panel unit 5 is disposed at the lower front portion of the main body 1, it may be disposed at the lower portion of the door 3 as shown in FIG. 1. Further, the notification means 16 may be arranged at a place other than the operation panel unit 5. Reference numeral S denotes water vapor generated in the heating chamber 2 during steam cooking. The configuration of the water vapor generating means for generating the water vapor S will be described later.

  FIG. 3 is a diagram showing an internal structure mainly related to the oven function of the microwave oven. In the figure, a hot air fan unit 21 that generates hot air is provided inside the main body 1 and located behind the heating chamber 2. The hot air fan unit 21 is disposed as a heating unit for heating an object to be heated in the heating chamber 2 on the inner side of the indoor wall surface 22 forming the heating chamber 2, and is heated by a hot air heater 23 for heating air. The main components are a hot air fan 24 for sending the heated air into the heating chamber 2 and a hot air motor 25 for rotating the hot air fan 24. The hot air fan 24 is provided as a so-called centrifugal fan that discharges air taken in the axial direction in a radial direction perpendicular to the axial direction by centrifugal force during rotation, and the tubular hot air heater 23 is in the radial direction of the hot air fan 24. Is placed around. For example, a sheathed heater, a mica heater, a quartz tube heater, or a halogen heater is used as the hot air heater 23 that is also a heat generating portion.

  Aside from the hot air fan unit 21, a radiant heater 27 for heating an object to be heated in the heating chamber 2 is provided on the upper portion of the heating chamber 2. That is, the microwave oven of the present embodiment has a configuration in which the hot air heater 23 and the radiant heater 27 are separately provided as a plurality of heating means.

  31 is a water vapor generating means that enables cooking with water vapor. The water vapor generating means 31 is equipped with an evaporator unit 32 on the left wall surface of the heating chamber 2. The evaporator unit 32 is configured by casting a rod-shaped sheathed heater 33 as an evaporation heater into a hollow evaporation container made of, for example, aluminum die casting, and communicates with the left wall surface of the opposing heating chamber 2 in the evaporation container. A plurality of steam outlets 34 are provided. Further, the evaporator unit 32 includes container temperature detecting means 35 (see FIG. 6) such as a thermistor for detecting the temperature in the evaporation container, and can generate stable water vapor based on the temperature detection.

  In addition, the water vapor generating means 31 includes a water supply pump 37 and a water storage tank 38 that are connected to the evaporator unit 32 through a water supply pipe 36. The water storage tank 38 is detachably provided from the main body 1 so that the user can easily supply water whenever necessary. When the water supply pump 37 is driven in a state where water is stored in the water storage tank 38, the water storage tank 38 is provided. Is sent to the evaporator unit 32 heated to a predetermined temperature to be vaporized, and steam is blown into the heating chamber 2 from the steam outlet 34 by the vapor pressure. . Note that 39 is a control means that is provided in the lower part of the heating chamber 2 and controls the operation of each part incorporated in the microwave oven.

  FIG. 4 is a front view of the main body 1 with the door 3 removed. In the figure, a suction port 41 and a discharge port 42 are formed in the indoor wall surface 22 behind the heating chamber 2, and air (hot air) can flow between the heating chamber 2 and the internal space of the hot air fan unit 21. ing. Particularly in this embodiment, when a motor control signal is received from the control means 39 and a drive voltage is applied to the hot air motor 25 and the hot air fan 24 rotates in the internal space of the hot air fan unit 21, Air is sucked in toward the hot air fan 24 from the suction port 41 located in the central portion, and this air is heated by passing through the hot air heater 23 energized in the internal space of the hot air fan unit 21. The heated air is discharged from a plurality of discharge ports 42 arranged around the suction port 41, circulates in the entire heating chamber 2, and heats the object to be heated stored therein. It has become.

  FIG. 5 is a longitudinal sectional view showing the internal structure of the microwave oven. In the figure, an infrared sensor 43 facing the heating chamber 2 is attached to the upper part of the side surface of the heating chamber 2. Although not shown, the infrared sensor 43 includes, for example, eight linearly arranged infrared temperature detection elements. By swinging the infrared sensor 43 inside the main body 1, almost the entire temperature distribution in the heating chamber 2. It is possible to detect. Below the heating chamber 2, a magnetron 44 serving as a generation source for generating microwave energy, a waveguide 45 for guiding the microwave from the magnetron 44 to the inside of the heating chamber 2, and the waveguide 45 An antenna 46 that radiates microwaves to the heating chamber 2, an antenna motor 48 such as an AC motor that horizontally rotates the antenna 46 around an upright shaft 47, and a micro switch 49 that is mounted in the vicinity of the antenna 46 are supplied with microwaves. Arranged as means 50 respectively.

  The antenna 46 has radiation directivity, and the shaft 47 of the antenna motor 48 is attached to the center thereof. Further, only one antenna 46 is disposed at the approximate center of the bottom surface of the heating chamber 2. Although the antenna 46 of this embodiment has a disk-like outer shape, a portion having a large microwave radiation directivity is formed in one direction as viewed from the shaft 47, and the opposite side of the portion is the microwave radiation directivity. It is a small part of. As used herein, “a part having a high radiation directivity” means a part having a high directivity where microwaves are concentrated and radiated in one direction compared to other parts. "Means a portion having a low directivity in which microwaves are diffused and emitted compared to other directions.

  The micro switch 49 includes an actuator that can move according to the rotation position of the antenna 46. Here, when the antenna 46 is rotated, the antenna 46 is rotated with respect to a portion having a large microwave radiation directivity with the shaft 47 as the origin. Each time the micro switch 49 is positioned in the direction of 90 degrees on the opposite side of the rotation direction, an actuator (not shown) is operated to generate an electrical detection signal indicating that the antenna 46 is at the origin position. 49 to output to the control means 39. Instead of the micro switch 49, a non-contact detection element such as a photo interrupter may be used.

  FIG. 6 shows the electrical configuration of the microwave oven described above. Reference numeral 51 denotes a microcomputer corresponding to the control means 39, which includes a CPU as arithmetic processing means, a memory as storage means, an input / output device, and the like. In addition to the first heating condition setting means 8, the second heating condition setting means 9, the heating start instruction means 10, the cancellation instruction means 11, and the container temperature detection means 35 described above, the input port of the microcomputer 51 includes: The chamber temperature detecting means 52 such as a thermistor for detecting the temperature in the heating chamber 2 and the infrared sensor 43 are equipped with a swing mechanism, and the temperature distribution in the entire heating chamber 2 is detected and accommodated therein. The internal temperature distribution detecting means 53 that can detect the temperature of the heated object, the door open / close detecting means 54 that detects the open / closed state of the door 3, the micro switch 49, and the like are configured to rotate the antenna 46. The position detecting means 55 for detecting the origin of each is electrically connected. In addition to the display unit 6 and the notification unit 16, the output port of the microcomputer 51 includes a microwave heating unit 56 including a magnetron 44 and the like for performing range heating on an object to be heated in the heating chamber 2. In order to heat the object to be heated in the heating chamber 2, a relay that cuts off the hot air heater 23 of the hot air fan unit 21, the radiant heater 27, and the sheathed heater 33 of the water vapor generating means 31, etc. Heater driving means 57, antenna driving means 58 including an antenna motor 48 for rotating the antenna 46 provided on the outlet side of the waveguide 45, and hot air motor 24 for rotating the hot air fan 24. The motor driving means 59 including 25 and the pump driving means 60 for operating the water supply pump 37 of the water vapor generating means 31 are electrically connected to each other. It is.

  Then, the microcomputer 51 detects each detection signal from the container temperature detecting means 35, the inside temperature detecting means 52, the inside temperature distribution detecting means 53, the door open / close detecting means 54, the position detecting means 55, and the first heating. In response to each operation signal from the condition setting means 8, the second heating condition setting means 9, the heating start instruction means 10, and the cancellation instruction means 11, the microwave heating means 56, the heater driving means 57, and the antenna driving A drive control signal is output to the means 58 and the motor drive means 59, a display control signal is output to the display means 6, and a notification control signal is output to the notification means 16.

  When the microcomputer 51 receives the operation signal accompanying the pushing operation from the first heating condition setting means 8, the second heating condition setting means 9, or the heating start instruction means 10, the control signal corresponding to the operation signal is It is sent to the microwave heating means 56, the heater driving means 57, the antenna driving means 58, the motor driving means 59, and the pump driving means 60 to control various cooking. During the control, a detection signal from the internal temperature detection means 52 that detects the temperature in the heating chamber 2, a detection signal from the internal temperature distribution detection means 53 that detects the temperature distribution in the heating chamber 2, and the generation of water vapor The temperature of the heating chamber 2 is controlled to a predetermined value with reference to the detection signal from the container temperature detection means 35 that detects the temperature of the means 31.

  In particular, the microcomputer 51 uses the microwave energy from the microwave supply means 50 to detect the spill of the object to be heated by the internal temperature distribution detecting means 53 during cooking in the range where the object to be heated in the heating chamber 2 is heated. In this case, the operation of the microwave supply unit 50 is stopped, and control is performed so that the notification unit 16 notifies that the heated object has been blown out. In addition, when the cooking chamber temperature detection unit 52 detects that the inside of the heating chamber 2 is hot at the end of cooking in steam cooking using water vapor by at least the water vapor generation unit 31, the notification unit 16 uses, for example, “ Do not bring your face close when opening the door. " Further, when a detection signal indicating that the door 3 has been opened during cooking is received from the door opening / closing detection means 54 or when an operation signal accompanying a push operation from the cancel instruction means 11 is received, It has the structure which controls to stop cooking immediately.

  Next, the operation of the above-described configuration, particularly related to steam cooking and range cooking, will be described with reference to FIGS.

  First, the operation at the time of steam cooking will be described with reference to FIG. 7. In step S1, the microcomputer 51 determines whether or not steam cooking using steam is selected based on the operation signal from the operation means 7. For example, when the “steam” key of the first heating condition setting means 8 is pressed one or more times, or the second heating condition setting means 9 is appropriately rotated to select a cooking menu number related to steamed dishes. In this case, the microcomputer 51 determines that the steam cooking using steam is selected, receives the operation signal from the heating start instruction means 10, and starts the steam cooking on the heated object accommodated in the heating chamber 2. On the other hand, if it is determined in step S1 that steam cooking is not selected and another heating cooking (range heating or oven heating) is selected, the procedure of the flowchart shown in FIG. In response to the operation signal, cooking for range heating or oven heating is started.

  When the steam cooking is started, the microcomputer 51 takes in the detection signal from the container temperature detecting means 35 and the sheath heater 33 is connected via the heater driving means 57 so that the evaporation container of the water vapor generating means 31 reaches a predetermined temperature. The operation of the feed water pump 37 is controlled via the pump driving means 60 so as to control the heat generation amount and to blow a predetermined amount of water vapor from the steam outlet 34. In “steaming” steam cooking, the temperature in the heating chamber 2 is not controlled, and the object to be heated in the heating chamber 2 is heated only by steam from the steam generating means 31.

  In addition to this, the microcomputer 51 takes in a detection signal from the internal temperature detection means 52 as necessary, and the hot air motor 25 is connected via the motor drive means 59 so that the inside of the heating chamber 2 becomes a predetermined temperature. And the amount of heat generated by the hot air heater 23 is controlled via the heater driving means 57. By performing such temperature control of the heating chamber 2, steam cooking by “superheated steam” (for example, “chicken teriyaki” or “hamburger” menu) is set so that the temperature in the heating chamber 2 is 100 ° C., which is the boiling point of water. In addition, a low temperature steam dish in which the temperature in the heating chamber 2 is less than 100 ° C., which is the boiling point of water (for example, in the “pudding” menu, a temperature range of 78 to 82 ° C. is suitable. In the “cooking” menu in which an increase in vitamin C such as, etc. can be expected, a temperature range of about 40 to 50 ° C. is preferable.

  Further, the microcomputer 51 can also heat the object to be heated by the radiant heater 27 during steam cooking in which steam is generated from the water vapor generating means 31 according to the selected cooking menu. In particular, in the above-mentioned “superheated steam”, it becomes possible to color the object to be heated with the radiant heater 27 while dropping the oil and fat on the surface of the object to be heated with the superheated steam from the steam generating means 31. In addition, it is also possible to select a cooking menu in which microwaves are generated from the microwave supply means 50 during steam cooking and the object to be heated is range-heated.

  Thus, when the steam cooking using at least the water vapor generating means 31 is completed in step S2, the microcomputer 51 controls each part including the water vapor generating means 31 so as to stop all the heating of the article to be heated. Then, the microcomputer 51 proceeds to the next step S3, takes in the detected temperature of the oven thermistor as a detection signal from the internal temperature detection means 52, and whether the detected temperature exceeds a preset threshold (for example, 100 ° C.). Judge whether or not. If the detected temperature is equal to or lower than the threshold value, the steam cooking is finished as it is. However, if the detected temperature exceeds the threshold value, the process proceeds to step S4, and the microcomputer 51 sends a control signal to the notifying means 16, and voice or The notification means 16 is notified to alert the user with a buzzer or the like. Thereby, when the user is in a high temperature state at the end of the steam cooking and the user operates the handle 4 to open the front opening of the heating chamber 2 with the door 3, It can be detected in advance that water vapor may blow out.

  Next, the operation during range cooking will be described with reference to FIG. 8. In step S11, based on the operation signal from the operation means 7, the microcomputer 51 has selected range cooking for heating the object to be heated with microwave energy. Judge whether or not. For example, when the “range” key of the first heating condition setting means 8 is pressed one or more times, or the second heating condition setting means 9 is appropriately rotated to select the cooking menu number related to the range cooking. In this case, the microcomputer 51 determines that the range cooking has been selected, receives the operation signal from the heating start instruction means 10, and starts the range cooking for the heated object accommodated in the heating chamber 2. On the other hand, if it is determined in step S11 that another cooking has been selected without selecting range cooking, the procedure of the flowchart shown in FIG. 8 is terminated, and an operation signal from the heating start instruction means 10 is received. Start another selected cooking.

  When range cooking is started, the microcomputer 51 controls the microwave heating means 56 so that the microwave energy radiated from the microwave supply means 50 to the heating chamber 2 becomes a predetermined output. Moreover, in this range cooking, the steam cooking mentioned above can be used together.

  And the microcomputer 51 takes in the temperature information of the whole inside of the heating chamber 2 detected by the internal temperature distribution detection means 53 as a detection signal by swinging the infrared sensor 43 during the range cooking (step S12). The temperature detection of the entire heating chamber 2 based on the swing operation requires a certain time (for example, 5 seconds).

  Thus, when the temperature detection for a certain period of time by the internal temperature distribution detection means 53 is completed, the microcomputer 51 reads the previous temperature detection result stored in the storage means in step S13, and the entire temperature range in the heating chamber 2 is read. In FIG. 5, it is calculated how much the temperature has changed during a fixed time of 5 seconds, and it is determined whether or not the temperature rise value exceeds a preset threshold value (for example, 20 ° C.). If the temperature rise value is less than or equal to the threshold value, the process proceeds to step S15, the entire temperature in the heating chamber 2 taken in in step S12 is stored in the storage means of the microcomputer 51, and the process returns to step S12 again to prepare the range cooking. The entire temperature in the heating chamber 2 is detected by the internal temperature distribution detecting means 53. If the temperature rise value exceeds the threshold value, the process proceeds to step S14, and the microcomputer 51 performs all heating on the object to be heated. Each part including the microwave supply means 50 is controlled so as to stop. In this way, by immediately stopping the heating of the heated object that has been spilled, the heating object 2 can be kept from becoming dirty without wasting the heated object.

  In step S14, the microcomputer 51 sends a control signal to the notifying means 16 to notify the notifying means 16 that an error has been detected by voice or buzzer, and the series of range cooking is completed. Thus, the user can know that the heated object in the heating chamber 2 has been blown out during cooking in a state where the heating of the heated object is stopped.

  FIG. 9 schematically shows the inside of the heating chamber 2 in a state where the heated object O is blown out. Since the object to be heated O is placed on the bottom surface of the heating chamber 2, the microcomputer 51 determines that the constant range 2 </ b> A of the constant range 2 </ b> A on the bottom surface of the heating chamber 2 that the infrared sensor 43 can observe by the swing operation in step S <b> 13. In all, the temperature rise value for a certain time is calculated from the difference between the temperature detected in step S12 and the temperature stored in the storage means in step S15. This temperature increase value may be calculated, for example, for each observation point in the fixed range 2A, or may be calculated for an average value of all the observation points in the fixed range 2A. If there is no spilling from the object to be heated O, even if the object to be heated O is heated by range cooking, the temperature rise for a certain period of time obtained in step S13 becomes a moderate value less than the threshold value. When a spill occurs from the heated object O, the temperature of a part of the bottom surface of the heating chamber 2 rapidly rises due to the spill, so that the temperature increase value for a certain time obtained in step S13 exceeds the threshold value. . Therefore, the microcomputer 51 can accurately determine whether or not spillage has occurred in the heating chamber 2 by comparing the temperature rise value for a certain period of time with the threshold value.

  As described above, in this embodiment, the heating chamber 2 for storing the object to be heated, the hot air heater 23, the radiant heater 27, and the magnetron 44 as heating means for heating the object to be heated, and water are generated to generate steam. The steam generation means 31 as the steam generation means for sending the steam to the heating chamber 2, the water supply tank 38 as the water supply means for supplying water to the steam generation means 31, and the temperature detection for detecting the temperature of the heating chamber 2 The inside temperature detecting means 52 and the notifying means 16 as means are provided, and at least the steam generating means 31 is used for steam cooking such as steaming or superheated steam, and the inside temperature detecting means at the end of the cooking. When the detected temperature (detected temperature) from 52 exceeds a threshold value, the notification means 16 is configured to notify the user of attention.

  In this case, in steam cooking using steam from the steam generating means 31, the temperature in the heating chamber 2 is detected by the internal temperature detecting means 52 at the end of the steam cooking, and the detected temperature exceeds the set threshold value. If there is, the notification means 16 notifies that the inside of the heating chamber 2 is in a high temperature state. In this way, it is possible to provide a microwave oven as a highly safe cooking device by notifying the user in advance that water vapor may blow out when the heating chamber 2 is opened, and calling attention.

  In this embodiment, microwave energy is supplied to the heating chamber 2 to heat the object to be heated, and control means 39 for controlling the output of the microwave from the microwave supply means 50; The inside temperature distribution detecting means 53 as temperature detecting means for detecting the temperature of the entire bottom surface of the heating chamber 2 and the notifying means 16 are provided, and the inside temperature distribution detecting means within a certain range 2A on the bottom surface of the heating chamber 2. As the amount of change in the detected temperature from 53 for a certain time, the control means 39 is configured so that the heating by the microwave supply means 50 is stopped and the notification from the notification means 16 is performed when the temperature rise value exceeds the threshold value. Is configured.

  In this case, if the amount of change in the detected temperature from the internal temperature distribution detecting means 53 over a certain time exceeds the threshold during cooking in the range where the object to be heated is heated by the microwave energy from the microwave supplying means 50, the microwave The heating by the supply means 50 is stopped, and the notification means 16 notifies that a spill has occurred in the heating chamber. In this way, the heating material that does not waste the food material to be heated and does not further contaminate the heating chamber 2 and informs the user that the spillage has occurred during cooking of the range can be alerted. A microwave oven as a cooker can be provided.

  In addition, this invention is not limited to the said Example, A various change is possible in the range which does not deviate from the meaning of this invention. For example, the flowcharts shown in FIG. 7 and FIG. 8 are merely examples, and the microcomputer 51 may control each unit with different processing procedures.

2 Heating chamber 16 Notification means 39 Control means 50 Microwave supply means 53 Internal temperature distribution detection means (temperature detection means)

Claims (1)

A heating chamber for storing an object to be heated;
Microwave supply means for supplying microwave energy to the heating chamber to heat the object to be heated;
Control means for controlling the output of the microwave;
Temperature detecting means for detecting the temperature of the entire bottom surface of the heating chamber;
An informing means,
When the amount of change in the detected temperature from the temperature detection means over a certain time within a certain range of the bottom surface of the heating chamber exceeds a threshold value, heating by the microwave supply means is stopped, and notification from the notification means The cooking device characterized by having the structure which performs.

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