JP2010203625A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a cooker capable of providing information and taking countermeasures etc. by determination of an abnormality related to packing etc. <P>SOLUTION: The cooker includes: a cooking chamber 60 for cooking a heated object; a grill door 61 provided in the cooking chamber 60; the packing 61A provided between the grill door 61 and the cooking chamber 60; a distance sensing means for sensing the distance between the grill door 61 and the cooking chamber 60 when the grill door 61 is closed; and an upper face display 5A for informing about the abnormality of the packing 61A when it is detected by the distance sensing means that the distance between the grill door 61 and the cooking chamber 60 is a predetermined value or less. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heating cooker. In particular, it is determined whether or not the packing provided between the door and the cooking chamber is abnormal.

  For example, in a cooking device for heating an object to be heated such as fish, between a cooking chamber having an opening for taking in and out the object to be heated, a cooking chamber and the door for opening and closing the outside. In order to buffer the impact between the cooking chamber and the door when closed, for example, a packing is provided to keep the cooking chamber and the door airtight so that air from the door side does not flow in and out (for example, patents) Reference 1).

JP-A-11-83037 (FIG. 1)

  The packing as described above basically has a long durability and the like even when compared with other components when using a normal cooking device. However, because it is a component that is susceptible to shocks, for example, deformation, damage, deterioration over time, etc., packing malfunction, such as shrinkage of the packing, airtightness not being maintained, or inability to perform predetermined heating due to unintended gaps. May occur. When an abnormality occurs in the packing, for example, the distance between the door and the cooking chamber becomes short, and the door becomes hotter than necessary.Intentionally heating the object to be heated by affecting the air flow in the cooking chamber. There is a possibility that adverse effects such as the inability to perform the operation may occur. However, the present situation is that no judgment has been made on the packing abnormality.

  Then, in order to solve the above problems, an object of the present invention is to obtain a heating cooker that can determine whether or not the packing is abnormal and perform notification, countermeasures, and the like.

  The cooking device according to the present invention includes a cooking chamber for cooking an object to be heated, a door provided in the cooking chamber, a packing provided between the door and the cooking chamber, and a door when the door is closed. Based on the distance detection means for detecting the distance to the cooking chamber, the control means for determining whether the distance between the door and the cooking chamber is equal to or less than a predetermined value based on the detection of the distance detection means, and the determination of the control means And a notifying means for notifying the abnormality of the packing.

  According to the present invention, in the cooking device having a packing between the cooking chamber and the door, when it is determined that the distance between the cooking chamber and the door is equal to or less than a predetermined value, the abnormality of the packing is notified. It is possible to promptly respond to abnormal packing by inspection, replacement, etc. In addition, by making it possible to respond early, accidents and the like can be prevented in advance.

It is a figure showing an example of the heating cooker which concerns on Embodiment 1 of this invention. It is a figure showing the outline of the structure of the grill part 6 of a heating cooker. It is a figure showing the outline at the time of seeing the internal structure of the grill part 6 from the side surface side. It is a figure which shows the detailed structure of the grill door 61 vicinity. FIG. 3 is a block diagram showing a configuration of control relation centering on a grill section 6. It is a figure showing the flowchart of the judgment processing which concerns on abnormality of packing 61A. It is a figure showing the cross section of the heating cooker which concerns on Embodiment 2. FIG. It is a figure showing the cross section of the heating cooker which concerns on Embodiment 3. FIG. It is a figure showing the cross section of the heating cooker which concerns on Embodiment 4. FIG. It is a figure showing the cross section of the heating cooker which concerns on Embodiment 5,6,7.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating the appearance of a heating cooker according to Embodiment 1 of the present invention. In this embodiment, an IH cooking heater provided with a grill device serving as a cooking device will be described. In FIG. 1, on the top surface of the IH cooking heater, a top plate 1, for example, an induction heating unit 2 having a left electromagnetic induction coil and a right electromagnetic induction coil, a heater unit 3 having a central heater, a top operation unit 4A, a top display Part 5A and vents 7A and 7B are provided. In addition, a grill portion 6 that is a grill device is provided in the IH cooking heater body. The front surface is provided with a grill door 61 having a handle 62 and a front operation section 4B and a front display section 5B for taking in and out the object to be heated in and out of the grill section 6.

  On the upper surface operation unit 4A provided on the front side (user side) of the top plate 1, operation buttons for turning on / off the induction heating unit 2, the heater unit 3 and the grill unit 6 and adjusting the thermal power are arranged. Yes. The front operation unit 4B provided on the right side of the grill unit 6 includes, for example, a main operation button for turning on / off the entire heating cooker and a rotary operation button for setting the heating power (output). Yes.

  Further, the upper surface display unit 5A displays the heating power, usage status, and the like of the induction heating unit 2, the heater unit 3, and the grill unit 6. Here, as will be described later, in particular, it is used as a notification means for performing a display for prompting inspection, replacement, etc. relating to the abnormality of the packing 61A provided in the grill portion 6. Further, the front display unit 5B teaches that the grill door 61 is in a high temperature state, for example, an operation lamp (not shown) that teaches (notifies) the operating state of the induction heating unit 2 and the heater unit 3 by illuminating characters. A door warning lamp (not shown) is provided.

  FIG. 2 is a diagram illustrating the structure of the grill portion 6 of the heating cooker 1. For example, the grill portion 6 capable of double-sided baking has a cooking chamber 60 for heating an object to be heated. As shown in FIG. 2, a vent 7 </ b> A serving as an exhaust port in an exhaust passage (duct) 63 communicating with the inside of the cooking chamber 60 is provided on the back side of the upper surface of the main body. A filter is provided in the vent 7A to prevent dust, foreign matter, etc. from entering the main body. The vent 7B serves as an intake for taking in outside air for cooling an electric circuit or the like in the IH cooking heater body, for example.

  The cooking chamber 60 has an opening 41 on the front surface and a communication port 46 communicating with the exhaust passage 63 on the rear surface. In addition, a rail fixing portion 47 for sliding the rail movable portion 48 is provided on the outer side surface. Then, the opening 41 of the cooking chamber 60 can be opened and closed by the grill door 61 having a cooking glass window made of heat-resistant glass by sliding the rail movable portion 48 back and forth following the rail fixing portion 47.

  FIG. 3 is a diagram showing an outline when the internal structure of the grill portion 6 is viewed from the side. FIG. 3 shows the grill portion 6 cut along A-A ′ in FIG. 2. In the grill door 61, a packing 61 </ b> A is provided on the grill door 61 so as to cover the peripheral edge of the opening 41 in order to seal the opening 41 when closed, to reduce an impact as a cushioning material, and the like. The grill door 61 is fixed by a door fixing portion 49 integrated with the rail movable portion 48. In addition to the grill door 61, a tray (tray) 30 on which the grill net 31 is placed is moved along with the movement of the rail movable portion 48 by the sliding movement of the rail movable portion 48.

  A cooking chamber 60 of the grill unit 6 is disposed below the heating coil of the induction heating unit 2. The cooking chamber 60 is provided with an upper heater 42 and a lower heater 43 (hereinafter referred to as a heater unless otherwise specified) as heating means for raising the temperature and heating the article 100 to be heated. In addition, the tray 30 and the grill 31 described above are arranged.

  Then, in the exhaust passage 63 communicating with the cooking chamber 60 through the communication port 46, the catalyst heater 64, the deodorizing / dehumidifying device 65, and the exhaust promotion fan 66 are arranged in this order from the communication port 46 toward the vent 7 </ b> A. Arrange. The catalyst heater 64 is a means for heating in order to promote activation of the catalytic action by the catalyst included in the deodorizing / smoke removing device 65. The deodorizing / smoke removing device 65 is a means for purifying air by deodorizing and deodorizing components such as odor and oily smoke generated when an object to be heated is heated. Here, the deodorizing / desmoking device 65 performs deodorization and smoke removal using a catalyst that decomposes components such as odor and oily smoke by catalytic action. Further, the exhaust promotion fan 66 forms an air flow from the communication port 46 toward the vent 7A, and forcibly exhausts the air that has passed through the deodorizing / desmoking device 65 from the vent 7A. This exhaust promotion fan 66 is rotated by a drive motor 67 as fan drive means.

  FIG. 4 is a diagram showing a detailed configuration in the vicinity of the grill door 61. In the grill door 61, for example, protrusions 61B and 61C are provided on the upper and lower portions. And the temperature detection means 70A and 70B used as the distance detection means for detecting the distance of the grill door 61 and the cooking chamber 60 by detecting temperature are each arrange | positioned at the front-end | tip part of protrusion part 61B, 61C. Yes. The temperature related to the detection by the temperature detecting means 70A, 70B can be regarded as the temperature around the grill door 61, for example. For example, the temperature related to the detection increases as the packing 61A contracts due to aged deterioration or the like and approaches the cooking chamber 60 heated by the heater. Further, when the cooking operation is performed without rotating the exhaust promotion fan 66, if the airtightness by the packing 61A is not perfect, the temperature related to the detection becomes high even when the heated air leaks from the cooking chamber 60. Therefore, in the present embodiment, the temperature detectors 70A and 70B are made to detect the temperature in order to determine the abnormality of the packing 61A. Here, in the present embodiment, the protrusions 61B and 61C having the temperature detecting means 70A and 70B are provided on the upper and lower portions of the grill door 61. However, the present invention is not limited to this position. If it is. Further, the number of temperature detecting means 70A and 70B is not limited.

  FIG. 5 is a block diagram showing a control-related configuration with the grill portion 6 as the center. For example, the control unit 11 configured by a microcomputer or the like makes a determination based on a signal related to an instruction transmitted from the upper surface operation unit 4A and the front surface operation unit 4B, a physical quantity signal related to detection transmitted from various detection units, and the like. The process of this is performed and operation | movement of each means in a heating cooker is controlled. Here, it is assumed that the control means 11 has a counter (not shown). In the present embodiment, it is determined whether or not the temperature has become equal to or higher than a predetermined temperature (whether or not there is an abnormality in the packing 61A) based on temperature data relating to detection by the temperature detection means 70A and 70B. Then, based on the determination result, a process of transmitting a display signal to the upper surface display unit 5A to perform display is performed. In addition, by transmitting a signal including an instruction to the heater driving means 44 and controlling energization (power supply) to the upper heater 42 and the lower heater 43 via the heater driving means 44, the heater is placed in the cooking chamber 60. The object to be heated is heated. Further, a signal including an instruction is transmitted to the drive motor 67 and the exhaust promotion fan 66 is controlled via the drive motor 67 to forcibly exhaust the air in the cooking chamber 60. Here, in the present embodiment, the control means 11 is configured as a single means, but for example, a two-stage configuration of a control means that controls the entire heating cooker and a control means that controls the grill section 6. You may make it.

  In addition, it is assumed that the storage unit 12 temporarily stores data necessary for the control unit 11 to perform processing, such as data related to a signal to be transmitted, a processing procedure, and the like. For example, the control means 11 shall perform the process regarding a heating cooker according to the procedure based on the program memorize | stored in the memory | storage means 12. FIG. Furthermore, it has the cooking timer 13 for measuring cooking time.

FIG. 6 is a diagram illustrating a flowchart of a determination process related to the abnormality of the packing 61 </ b> A performed by the control unit 11. Based on FIG. 6, the process which concerns on packing 61A in this Embodiment is demonstrated. Here, by conducting an experiment or the like in advance, a temperature threshold for determining that the packing 61A is abnormal is determined, and data of the temperature threshold T _ref is stored in the storage unit 12. For example, an average outside air temperature during normal operation is obtained by measurement. When the packing 61 </ b> A is abnormal, the distance between the grill door 61 and the cooking chamber 60 is shorter than that when the packing 61 </ b> A is normal.

For example, heating of the object to be heated in the grill unit 6 is started based on an instruction input from the upper surface operation unit 4A. The control means 11 determines the temperatures T ₁ and T ₂ based on the signals from the temperature detection means 70A and 70B (S1). Then, comparing the threshold value T _ref of temperatures T ₁ and the temperature (S2). Also, comparing the threshold value T _ref of temperature T ₂ and the temperature (S3).

If it is determined that one of the temperatures T ₁ and T ₂ related to detection by the temperature detection means 70A and 70B is larger than the temperature threshold T _ref (T ₁ > T _ref or T ₂ > T _ref ), the packing 61A is abnormal. As a result, the display on the upper surface display portion 5A is urged to check, replace, etc. the packing 61A, and is taught (notified) (S4). On the other hand, if both are equal to or less than the threshold value T _ref , the process returns to S1 to continue the determination regarding the abnormality of the packing 61A.

Here, when the control means 11 determines that _{one of} the temperatures T ₁ and T ₂ related to the detection of the temperature detection means 70A and 70B is larger than the threshold value T _ref , the control means 11 immediately checks and replaces the upper surface display portion 5A. For example, the display may be performed when it is determined a predetermined number of times that the value is larger than the threshold value T _ref .

As described above, according to the cooking device of the first embodiment, the temperature detection means 70A and 70B are provided at the tip portions of the protrusions 61B and 61C of the grill door 61, and the control means 11 is provided with the temperature detection means 70A and 70B. When it is determined that the packing 61A is abnormal based on the comparison between the temperatures T ₁ and T ₂ related to the detection of the temperature and the threshold value T _{ref of the} temperature, a display on the upper surface is displayed to indicate that the packing 61A is abnormal, for example, inspection, replacement, etc. Since it is displayed on the part 5A, the abnormality of the packing 61A can be taught at an early stage, and a response by inspection, replacement or the like can be promoted. In addition, by making it possible to respond early, accidents and the like can be prevented in advance. Here, since the temperature around the grill door 61 rises not only by the shrinkage of the packing 61A due to aging, but also by the heated air leak from the cooking chamber 60 due to the damage of the packing 61A, etc., the temperature detecting means 70A, By determining the abnormality of the packing 61A based on the temperature related to the detection of 70B, various causes of the abnormality of the packing can be dealt with.

Embodiment 2. FIG.
FIG. 7 is a diagram illustrating a cross section of the heating cooker centering on the grill door 61 according to Embodiment 2 of the present invention. In FIG. 7, the coil 60A provided on the cooking chamber 60 side generates a magnetic field by supplying current from a current supply means (not shown), and the distance between the grill door 61 and the cooking chamber 60 is changed based on the change of the magnetic field. It becomes the distance detection means for detecting.

  In the first embodiment described above, the abnormality of the packing 61A is determined based on the temperature related to the detection by the temperature detecting means 70 provided at the tip of the protrusion 61A of the grill door 61. In the present embodiment, the abnormality of the packing 61A is determined by detecting the distance between the grill door 61 and the cooking chamber 60 based on the change in the magnetic field in the coil 60A when the grill door 61 approaches due to the shrinkage of the packing 61A. To do. Therefore, in the present embodiment, in order to detect a change in the magnetic field, the grill door 61 is made of metal, and a means using a metal for changing the magnetic field as a material at a position facing the coil 60A of the grill door 61 is provided. Shall be provided.

  For example, when the grill door 61 made of metal approaches the coil 60A, the metal enters the magnetic field and is affected by distortion of the magnetic field, and the value of the current flowing in the coil 60A gradually changes. (It tends to increase). Therefore, a current threshold value is determined in advance by experiments or the like, and the threshold value is stored in the storage unit 12 as data. For example, an average current value during normal operation is obtained by measurement. When the packing 61A is abnormal, the distance between the grill door 61 and the cooking chamber 60 is shorter than when the packing 61A is normal, so a value that is, for example, 10% larger than the average current value is determined as the threshold value. And if the control means 11 judges the electric current which flows through the coil 60A directly or via an electric current detection means (not shown) and judges that it became larger than a threshold value, it will be similar to the first embodiment. Assuming that the packing 61A is abnormal, the upper surface display portion 5A is displayed and instructed to prompt inspection, replacement, etc. of the packing 61A. Here, when it is determined that the predetermined number of times is larger than the threshold value, the display may be performed. Other processing relating to the abnormality determination of the packing 61A of the control means 11 is the same as that described in the above embodiment.

  As described above, according to the cooking device of the second embodiment, the coil 60A for generating a magnetic field is provided in the cooking cabinet 60, the grill door 61 approaches, and the metal of the grill door 61 changes the magnetic field. As a result, when it is determined that the packing 61A is abnormal based on the change in the current generated in the coil 60A, the display on the upper surface display portion 5A is displayed so as to prompt the display of abnormality, for example, inspection, replacement, etc. It is possible to teach the abnormality of the packing 61A at an early stage, and to prompt a response by inspection, replacement or the like. In addition, by making it possible to respond early, accidents and the like can be prevented in advance.

Embodiment 3 FIG.
FIG. 8 is a diagram illustrating a cross section of the heating cooker centering on the grill door 61 according to Embodiment 3 of the present invention. In FIG. 8, the vibration detection means 80 is means, such as an acceleration sensor, for detecting the vibration generated in the cooking device. Here, the vibration to be detected in the present embodiment is due to an impact generated when the grill door 61 and the cooking chamber 60 come into contact via the packing 61A when the grill door 61 is closed. For this reason, the vibration detecting means 80 capable of detecting the frequency (frequency) according to the vibration caused by the impact is used.

  For example, when the packing 61A is hardened due to aging, the packing 61A does not function as a cushioning material and the impact when the grill door 61 is closed increases, and the frequency of vibration caused by hardening increases. Amplitude, frequency, etc. change. Although not particularly limited, in the present embodiment, the vibration detection unit 80 transmits a signal related to amplitude, and the control unit 11 has an amplitude larger than a predetermined amplitude threshold based on the amplitude related to vibration. Is determined, and it is determined whether or not the packing 61A is abnormal.

  For example, when an abnormality occurs in the packing 61A, the vibration attenuation rate may change from a normal state. For example, the damping rate of vibration increases as the packing 61A is cured. Further, when the packing 61A made of resin or the like is deformed or the like, the grill door 61 is lifted, so that the damping rate of vibration due to the closing of the grill door 61 is reduced. Therefore, the control means 11 can also determine whether or not the packing 61A is abnormal based on whether or not the predetermined threshold value is exceeded based on the amount of change in the attenuation rate related to vibration.

  Furthermore, in this embodiment, in order to make a determination based on vibration caused by the more accurate contact between the grill door 61 and the cooking chamber 60 via the packing 61A, at least the pair of approach detection means 81 are respectively connected to the grill door 61. It is provided in the cooking chamber 60. Then, the control unit 11 determines whether the grill door 61 and the cooking chamber 60 are close (whether the grill door 61 is closed) based on a signal from the approach detection unit 81. If it is determined that the grill door 61 is closed, it is determined whether or not the packing 61A is abnormal based on a signal from the vibration detection means 80. By making such a determination, only the vibration due to the grill door 61 being closed can be used for the determination related to the packing 61A. Other processing relating to the abnormality determination of the packing 61A of the control means 11 is the same as that described in the above embodiment.

  As described above, according to the heating cooker of the third embodiment, when it is determined that the packing 61A is abnormal based on the vibration generated when the vibration detection unit 80 is provided and the grill door 61 is closed, Since the display related to the abnormality, for example, prompting the inspection, replacement, etc., is displayed on the upper surface display portion 5A, the abnormality of the packing 61A can be taught at an early stage, and the response by inspection, replacement, etc. can be promoted. In addition, by making it possible to respond early, accidents and the like can be prevented in advance. Further, since the approach detection means 81 is provided to determine whether or not the packing 61A is abnormal when it is determined that the grill door 61 is closed, the abnormality of the packing 61A is erroneously determined based on other vibrations. Therefore, only the vibration due to the closing of the grill door 61 can be used for the determination related to the packing 61A.

Embodiment 4 FIG.
FIG. 9 is a diagram illustrating a cross section of the heating cooker centering on the grill door 61 according to Embodiment 4 of the present invention. In FIG. 9, the internal temperature detection unit 60 </ b> B is provided for detecting the temperature in the cooking chamber 60 and transmitting a signal related to the temperature to the control unit 11.

  For example, if the packing 61A is damaged, the airtightness between the grill door 61 and the cooking cabinet 60 cannot be maintained, and an unexpected gap is generated even when a certain opening is provided for ventilation. Become. Since the opening area increases due to the gap, the amount of air flowing into the cooking chamber 60 from the outside increases. Since the temperature of the external air is lower than that of the air in the cooking chamber 60 and the flow of air becomes faster, the temperature rise in the cooking chamber 60 is slowed down as the amount of air flowing in increases.

  Therefore, for example, when a course or the like can be set for cooking of an object to be heated, even if it is necessary to control the inside of the cooking cabinet 60 to be a predetermined temperature at a predetermined time, a predetermined temperature rise is not prevented. Therefore, the control means 11 measures the time from the start of cooking with the cooking timer 13. Then, based on the signal from the internal temperature detection means 60B, for example, even if the time that should have reached the predetermined temperature has elapsed, the temperature does not reach the predetermined temperature. If it is determined that the packing 61A is abnormal, the display on the upper surface display portion 5A is displayed to indicate that the packing 61A is abnormal. Here, the temperature data related to the detection of the internal temperature detection means 60B is stored in the storage means 12 in time series, and the control means 11 calculates the temperature difference and obtains the tendency, You may make it perform abnormality determination of packing 61A. Other processing relating to the abnormality determination of the packing 61A of the control means 11 is the same as that described in the above embodiment.

  As described above, according to the heating cooker of the fourth embodiment, when it is determined that the packing 61A is abnormal based on the temperature related to the detection by the internal temperature detection means 60B, a display relating to abnormality, for example, inspection Since the display on the upper surface display portion 5A prompts replacement, etc., an abnormality of the packing 61A can be taught at an early stage, and a response by inspection, replacement, etc. can be promoted. In addition, by making it possible to respond early, accidents and the like can be prevented in advance.

Embodiment 5 FIG.
FIG. 10 is a diagram showing a cross section of a heating cooker according to Embodiment 5 of the present invention. In FIG. 10, the wind speed detection means 63 </ b> A is a means for detecting the wind speed in the exhaust passage 63. The rotational speed detection means 66A is a means for detecting the rotational speed of the exhaust promotion fan 66. Although the rotational speed detection means 66A may be a contact type, in the present embodiment, for example, it is constituted by a non-contact type rotational speed detection means that emits infrared rays and detects the rotational speed by reflection of infrared rays. Therefore, it is assumed that the exhaust promotion fan 66 in the present embodiment uses, for example, metal blades. In this embodiment, a wind speed detecting means 63A and a rotational speed detecting means 66A are provided, and an abnormality of the packing 61A is determined based on the relationship between the wind speed in the exhaust air passage 63 and the rotational speed of the exhaust promotion fan 66. It is.

  As described above, if the packing 61A is damaged or the like, a gap is generated between the grill door 61 and the cooking chamber 60, so that the opening area is increased, and the amount of air flowing into the cooking chamber 60 from the outside is large. It becomes easy to flow. Therefore, when performing the same operation as usual, the amount of air (air volume) flowing through the exhaust passage 63 per unit time increases and the wind speed increases.

  Therefore, the relationship between the rotational speed of the exhaust promotion fan 66 and the wind speed is derived in advance through experiments or the like. For example, a threshold value of the wind speed at a predetermined rotational speed of the exhaust promotion fan 66 is determined, and the threshold value is stored in the storage unit 12 as data. Based on the signal from the rotation speed detection means 66A, for example, the control means 11 is based on the wind speed related to the detection of the wind speed detection means 63A when the rotation speed of the exhaust promotion fan 66 reaches a predetermined rotation speed. Thus, it is determined whether or not the wind speed in the exhaust passage 63 is greater than the threshold value. If it is determined that the wind speed is greater than the threshold (the wind speed is greater than the rotational speed of the exhaust promotion fan 66), it is determined that the packing 61A is abnormal, and the upper surface display portion 5A is prompted to check and replace the packing 61A. Display and teach. Here, as in the present embodiment, the method of determining the abnormality of the packing 61A based on the wind speed of the exhaust passage 63 is applied even when the rotational speed of the exhaust promotion fan 66 is fixed, for example. be able to. In this case, it is not particularly necessary to provide the rotational speed detection means 66A.

  Further, in the present embodiment, the input voltage to the drive motor 67 is further reduced to lower the rotational speed of the exhaust promotion fan 66 and to adjust to the wind speed (air volume) before the abnormality of the packing 61A. Therefore, even if the packing 61A is abnormal, cooking can be continued while adjusting the air volume. Furthermore, a new threshold value may be determined from the relationship between the rotational speed of the exhaust promotion fan 66 after adjustment and the wind speed, and the threshold value may be stored as data in the storage unit 12. Other processing relating to the abnormality determination of the packing 61A of the control means 11 is the same as that described in the above embodiment.

  As described above, according to the heating cooker of the fifth embodiment, the rotation speed detection means 66A and the wind speed detection means 63A are provided, and the control means 11 is based on signals from the rotation speed detection means 66A and the wind speed detection means 63A. When it is determined that the wind speed (air volume) in the exhaust passage 63 is higher than a predetermined speed with respect to the rotation speed of the exhaust promotion fan 66 and the packing 61A is abnormal, an indication relating to abnormality, for example, inspection, Since the display on the upper surface display portion 5A is instructed to prompt replacement, etc., it is possible to teach the abnormality of the packing 61A at an early stage, and to prompt a response by inspection, replacement or the like. In addition, by making it possible to respond early, accidents and the like can be prevented in advance. Further, the display is made on the upper surface display portion 5A, and the rotation speed of the exhaust promotion fan 66 is lowered and the air volume increased due to the abnormality of the packing is reduced and adjusted, so that cooking can be continued.

Embodiment 6 FIG.
In the above-described embodiment, whether or not the packing 61A is abnormal is determined based on the difference in wind speed between when the abnormality occurs in the packing 61A and when the abnormality does not occur. For example, in cooking, when the rotation speed of the exhaust promotion fan 66 is adjusted and the air volume in the heating chamber 60 is controlled to be constant, based on the rotation speed of the exhaust promotion fan 66 with respect to the wind speed (air volume). The control means 11 may determine whether or not the packing 61A is abnormal. When the packing 61A becomes abnormal, the rotational speed of the exhaust promotion fan 66 tends to decrease. Therefore, when the control unit 11 determines that the number of rotations is less than a predetermined threshold based on the number of rotations detected by the number-of-rotations detection unit 66A, the control unit 11 determines that the packing 61A is abnormal and displays it on the upper surface display unit 5A. The display prompts the inspection, replacement, etc. of the packing 61A to be taught.

  As described above, also in the heating cooker according to the sixth embodiment, it is determined that the rotation speed of the exhaust promotion fan 66 is small with respect to the wind speed (air volume) based on the signal from the rotation speed detection means 66A. Thus, the abnormality determination of the packing 61A can be performed in the same manner as in the heating cooker according to the fifth embodiment.

Embodiment 7 FIG.
In the above-described fifth and sixth embodiments, the rotational speed detection means 66A is provided to directly detect the rotational speed of the exhaust promotion fan 66. For example, the drive motor 67 that rotates the exhaust promotion fan 66 is provided. The drive current detection means 67A may be provided to determine whether or not the packing 61A is abnormal based on the current flowing through the drive motor 67. When the current flowing through the drive motor 67 decreases, the rotational speed of the exhaust promotion fan 66 decreases. Therefore, the control unit 11 determines whether the current based on the detection by the drive current detection unit 66B has become smaller than a predetermined value, thereby indirectly determining a decrease in the rotational speed, thereby correcting the abnormality in the packing 61A. to decide. Other processing relating to the abnormality determination of the packing 61A of the control means 11 is the same as that described in the above embodiment.

  As described above, according to the heating cooker of the seventh embodiment, the current detection means 67A is provided in place of the rotation speed detection means 66A of the fifth and sixth embodiments, and the control is performed based on the signal from the current detection means 67A. Since the means 11 determines that the packing 61A is abnormal based on the amount of current flowing through the drive motor 67 and displays the display related to the abnormality on the upper surface display portion 5A, the abnormality of the packing 61A is taught early. Therefore, it is possible to promote the response by inspection, replacement, etc. In addition, by making it possible to respond early, accidents and the like can be prevented in advance.

Embodiment 8 FIG.
In the above-described embodiment, when it is determined that the packing 61A is abnormal, a display prompting inspection, replacement, etc. of the packing 61A is performed on the upper surface display portion 5A. However, the present invention is not limited to this. For example, the control unit 11 may perform processing so as to stop or not start the cooking operation of the object to be heated. In this case, rather than not performing the cooking operation by one determination, the abnormality of the packing 61A is determined, and after the display relating to the abnormality is displayed on the upper surface display unit 5A, the cooking operation is stopped. Or you may make it not start.

  Further, in the above-described embodiment, the upper surface display unit 5A is caused to perform a display prompting the inspection, replacement, etc. of the packing 61A. However, for example, it may be instructed (notified) by a notifying means that emits a sound or the like. .

Embodiment 9 FIG.
In the above-described embodiment, the description has been made regarding the determination of the abnormality of the packing 61A in the grill portion 6 of the IH cooking heater, but the cooking device to be applied is not limited to the grill portion of the IH cooking heater. For example, the present invention can also be applied to a grill cooking device.

  DESCRIPTION OF SYMBOLS 1 Top plate, 2A Left induction heating part, 2B Right induction heating part, 3 Heater part, 4A Upper surface operation part, 4B Front surface operation part, 5A Upper surface display part, 5B Front surface display part, 6 Grill part, 11 Main control means, 12 Storage means, 13 Cooking timer, 30 saucer, 31 grill, 41 opening, 42 upper heater, 43 lower heater, 44 heater driving means, 46 communication port, 47 rail fixing part, 48 rail movable part, 60 cooking chamber, 60A Coil, 60B Internal temperature detection means, 61 Grill door, 61A packing, 61B, 61C Protrusion, 62 Handle, 63 Exhaust air passage, 63A Air speed detection means, 64 Heater for catalyst, 65 Deodorization / dehumidification device, 66 Exhaust Fan for promotion, 66A Rotational speed detection means, 67 Drive motor, 70A, 70B Temperature detection means, 80 Vibration detection means, 81 Approach detection means.

Claims (12)

A cooking chamber for cooking the object to be heated;
A door provided in the cooking chamber;
A packing provided between the door and the cooking chamber;
Distance detecting means for detecting a distance between the door and the cooking chamber when the door is closed;
Control means for determining whether a distance between the door and the cooking chamber is equal to or less than a predetermined value based on detection of the distance detection means;
An informing means for informing the abnormality of the packing based on the judgment of the control means;
A heating cooker comprising: The distance detecting means is
Magnetic field generating means provided in the cooking chamber and generating a magnetic field by passing an electric current;
And a current detection means for detecting a current flowing through the magnetic field generation means, and at least a position of the door facing the magnetic field generation means is made of a metal material,
The cooking device according to claim 1, wherein a distance between the door and the cooking chamber is detected based on a current value flowing through the magnetic field generation unit obtained by the current detection unit. The distance detection means is composed of temperature detection means for detecting temperature,
The cooking device according to claim 1, wherein a distance between the door and the cooking chamber is detected based on a temperature detected by the temperature detection means. A cooking chamber for cooking the object to be heated;
A door provided in the cooking chamber;
A packing provided between the door and the cooking chamber;
Vibration detecting means for detecting vibration of the cooking chamber;
Control means for determining whether or not the vibration of the cooking chamber has become larger than a predetermined value based on the detection of the vibration detection means;
An informing means for informing the abnormality of the packing based on the judgment of the control means;
A heating cooker comprising: Comprising an opening / closing detection means for detecting opening / closing of the door;
The cooking device according to claim 4, wherein when the opening / closing detection means detects that the door is closed, detection by the vibration detection means is performed.   An attenuation rate of vibration of the cooking chamber is calculated from a signal obtained by the vibration detection means, and it is detected that there is an abnormality in the packing when the amount of change in the attenuation rate exceeds a threshold value. Claim | item 4 or the heating cooker of Claim 5. A cooking chamber for cooking the object to be heated;
A door provided in the cooking chamber;
A packing provided between the door and the cooking chamber;
An internal temperature detection means for detecting the temperature in the cooking chamber;
Storage means for storing temperature data related to detection by the internal temperature detection means for a certain time;
Control means for comparing the temperature data by the storage means with the temperature data in the cooking chamber obtained by the internal temperature detection means, and determining whether or not a difference has occurred over a predetermined value;
An informing means for informing the abnormality of the packing based on the judgment of the control means;
A heating cooker comprising: A cooking chamber for cooking the object to be heated;
A door provided in the cooking chamber;
A packing provided between the door and the cooking chamber;
Blower means provided in an exhaust air passage communicating the cooking chamber and the outside of the main body,
Wind speed detection means for detecting the wind speed of the gas exhausted from the cooking chamber;
Control means for determining whether or not the wind speed detected by the wind speed detecting means has increased from a predetermined range based on the relationship between the rotational speed of the air blowing means and the wind speed and the wind speed related to detection by the wind speed detecting means;
An informing means for informing the abnormality of the packing based on the judgment of the control means;
A heating cooker comprising:   The cooking device according to claim 8, wherein the number of rotations of the blowing unit is controlled based on a wind speed detected by the wind speed detecting unit. A cooking chamber for cooking the object to be heated;
A door provided in the cooking chamber;
A packing provided between the door and the cooking chamber;
Blower means provided in an exhaust air passage communicating the cooking chamber and the outside of the main body,
Drive current detection means for detecting current supplied to the drive means for rotating the blowing means;
Control means for determining whether or not the current value obtained from the drive current detection means is a predetermined value or less;
An informing means for informing the abnormality of the packing based on the judgment of the control means;
A heating cooker comprising: A cooking chamber for cooking the object to be heated;
A door provided in the cooking chamber;
A packing provided between the door and the cooking chamber;
Blower means provided in an exhaust air passage communicating the cooking chamber and the outside of the main body,
A rotational speed detecting means for detecting the rotational speed of the blower means;
Control means for determining whether or not the rotation speed obtained from the rotation speed detection means is a predetermined value or less;
An informing means for informing the abnormality of the packing based on the judgment of the control means;
A heating cooker comprising: The cooking device according to any one of claims 1 to 11, wherein when an abnormality is detected in the packing, the cooking operation of the object to be heated is not stopped or started.

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