WO2020144927A1 - 加熱調理器 - Google Patents
加熱調理器 Download PDFInfo
- Publication number
- WO2020144927A1 WO2020144927A1 PCT/JP2019/043526 JP2019043526W WO2020144927A1 WO 2020144927 A1 WO2020144927 A1 WO 2020144927A1 JP 2019043526 W JP2019043526 W JP 2019043526W WO 2020144927 A1 WO2020144927 A1 WO 2020144927A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heating
- heating chamber
- detection sensor
- temperature detection
- air
- Prior art date
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- 238000010411 cooking Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 391
- 238000001514 detection method Methods 0.000 claims abstract description 79
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- 238000002474 experimental method Methods 0.000 description 14
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- 238000012795 verification Methods 0.000 description 11
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- 239000000919 ceramic Substances 0.000 description 5
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- 230000005855 radiation Effects 0.000 description 4
- 229910052878 cordierite Inorganic materials 0.000 description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013410 fast food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
- F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
- H05B6/6485—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating further combined with convection heating
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
- A47J37/0641—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements with forced air circulation, e.g. air fryers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6402—Aspects relating to the microwave cavity
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6447—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
- H05B6/645—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors
Definitions
- the present disclosure relates to a heating cooker that heats and cooks an object to be heated housed in a heating chamber.
- various functions such as at least one of microwave heating, radiant heating, hot air circulation heating, and steam heating are provided so that appropriate heating and cooking can be performed according to the content of cooking for the object to be heated.
- it is important to control the temperature inside the heating chamber that houses the object to be heated.
- a temperature detecting means having an accuracy capable of accurately detecting the temperature of the area in which the object to be heated is housed, and an excellent responsiveness capable of being instantly detected without a time lag. ing.
- the microwave when microwave heating is performed in an empty state in which the object to be heated is not housed in the heating chamber, when so-called "air baking” is performed, the microwave is radiated into the heating chamber.
- the microwave may return to the microwave generation means side as a reflected wave without being absorbed in the heating chamber, and the microwave generation part may be destroyed. Therefore, it is necessary to immediately detect such an "idling" state, stop the heating operation, and notify the user.
- the heating cooker it is important to control the temperature inside the heating chamber, and a temperature detection unit with excellent accuracy and responsiveness is required.
- a temperature detection unit with excellent accuracy and responsiveness is required.
- An object of the present disclosure is to provide a heating cooker that can detect the temperature inside the heating chamber with high accuracy and can immediately detect the microwave heating when it is performed in the “idling” state. ..
- a heating cooker includes a heating chamber that accommodates an object to be heated, a circulation fan that sucks air in the heating chamber and blows the sucked air into the heating chamber, and a heating chamber that includes the heating chamber.
- a heating chamber flow passage forming unit that is disposed inside and that defines a flow velocity and a blowing direction of the air blown from the circulation fan into the heating chamber, and the heating chamber flow passage forming unit inside the heating chamber.
- a chamber internal temperature detection sensor provided in a predetermined region from the heating chamber flow passage forming portion, the sensor being disposed in the air circulation flow passage formed by the above.
- the present disclosure it is possible to detect the temperature inside the heating chamber with high accuracy and to immediately detect when the microwave heating is performed in the “idling” state.
- Vertical sectional view of the heating cooker according to the first embodiment Sectional drawing which expands and shows the inside temperature detection sensor.
- Front view showing the back wall behind the heating chamber Front view showing a part of the hot air circulation heating section in the hot air circulation region
- Exploded perspective view of the hot air circulation heating unit in the hot air circulation region A perspective view showing a hot air circulation heating unit in a hot air circulation region.
- heating cooker having functions of microwave heating, radiant heating, and hot air circulation heating will be described as a specific embodiment of the heating cooker of the present disclosure with reference to the accompanying drawings. It should be noted that the heating cooker according to the present disclosure is not limited to the configuration of the heating cooker described in the following embodiments, and is equivalent to the technical idea having the technical features described in the following embodiments. It includes the structure of a cooking device based on technology.
- a heating cooker includes a heating chamber that accommodates an object to be heated, a circulation fan that sucks air in the heating chamber and blows the sucked air into the heating chamber, and the heating chamber.
- a heating chamber flow passage forming portion that is disposed inside the chamber and that defines a flow velocity and a blowing direction of the air blown from the circulation fan into the heating chamber; and the heating chamber flow passage inside the heating chamber.
- the internal temperature detection sensor is provided in the air circulation flow path formed by the forming section and is provided in a predetermined region from the heating chamber flow path forming section.
- the inside temperature detection sensor is configured to operate when the circulation fan operates.
- a heating cooker is the second aspect, further including a plurality of openings on a wall surface that constitutes the heating chamber, the plurality of openings including a first opening group and a second opening group. And a group of openings.
- the first opening group is arranged in a central region of the wall surface, and sucks the air in the heating chamber by operating the circulation fan.
- the second opening group is arranged in a top surface side region of the wall surface, and blows the air toward the top surface side of the heating chamber by operating the circulation fan.
- the heating chamber flow path forming unit and the internal temperature detection sensor are provided on the top surface side of the wall surface.
- a heating cooker is the heating apparatus according to the third aspect, wherein the heating chamber flow path forming portion has a flow velocity of the air blown to the top surface side of the heating chamber by the circulation fan. And a wind duct that guides the blowing direction from the wind duct at least below the heating chamber.
- a heating cooker according to a fifth aspect of the present disclosure is the cooker according to the fourth aspect, wherein the inside temperature detection sensor is the circulation flow until the air blown from the wind duct reaches the wind guide. It is located on the road.
- the at least one wind guide has the at least one air blown from the wind duct in the circulation flow path. It has a first wind guide that reaches first among the wind guides.
- the inside temperature detecting sensor is arranged within a predetermined space from the position where the first wind guide is arranged.
- a heating cooker according to a seventh aspect of the present disclosure is the cooker according to the sixth aspect, wherein a detection end of the internal temperature detection sensor has a height that is half the height of protrusion from the top surface of the first wind guide. It is arranged in
- the heating cooker according to the eighth aspect of the present disclosure performs hot air circulation heating on the object to be heated housed in the heating chamber.
- the apparatus further includes a hot air circulation heating unit including the heat source.
- the circulation fan and the heating chamber flow passage forming unit are included in the hot air circulation heating unit.
- a heating cooker is, in any one of the first to eighth aspects, for performing microwave heating on an object to be heated housed in the heating chamber.
- the microwave heating unit including the microwave generation unit and the microwave supply unit is further provided.
- the in-compartment temperature detection sensor is configured to operate as a detector that detects "idling" in microwave heating.
- a heating cooker is the heating source according to any one of the first aspect to the ninth aspect, which performs radiant heating on an object to be heated housed in the heating chamber. It further comprises a radiant heating unit including. The internal temperature detection sensor is arranged directly above the heat source of the radiant heating unit provided on the top surface side of the heating chamber.
- FIG. 1 is a perspective view showing the appearance of the heating cooker 1 according to the first embodiment.
- the door 4 provided on the front surface is in the closed state.
- FIG. 2 is a perspective view showing a state where door 4 is opened in heating cooker 1 of the first embodiment.
- the heating cooker 1 is a heating cooker for business use, and is, for example, a cooker that can be heated with a large output used in convenience stores, fast food restaurants and the like.
- microwave heating, radiant heating, and hot air circulation heating are selectively performed individually or sequentially or in parallel depending on the content of cooking.
- the heating cooker 1 includes a main body 2 having a heating chamber 5, a machine room 3 provided below the main body 2 for supporting the main body 2, and a front surface of the main body 2 which can be opened and closed. And a door 4 provided in the. Further, on the front surface of the main body 2, an operation display unit 6 is provided for the user to display setting operations and setting contents for the heating cooker 1.
- the heating chamber 5 of the main body 2 has a substantially rectangular parallelepiped space that is open at the front, and is closed by closing the front opening with the door 4 to accommodate the object to be heated and cooked.
- the object to be heated contained in the heating chamber 5 is cooked by the hot air circulation heating mechanism provided on the back side, the radiant heating mechanism provided on the top side, and the microwave heating mechanism provided on the bottom side. ..
- the bottom surface of the heating chamber 5 is made of a material such as glass and ceramics through which microwaves easily pass.
- the inside of the heating chamber 5 is configured to be able to accommodate a placing rack 7 for placing an object to be heated and a tray 8 arranged below the placing rack 7 to receive oil and the like that drip from the object to be heated.
- the mounting rack 7 is, for example, a stainless steel wire rack, and is composed of a net-like member on which the object to be heated can be mounted.
- the tray 8 is a tray made of ceramics, specifically, cordierite (ceramics made of magnesium oxide, aluminum oxide, and silicon oxide). Cordierite has low thermal expansion properties and excellent thermal shock resistance.
- FIG. 3 is a vertical sectional view of the heating cooker 1 according to the first embodiment.
- a door 4 is provided on the right side, which is the front of the heating cooker 1.
- the door 4 side of the heating cooker 1 is referred to as the front side (front side), and the opposite surface (left side in FIG. 3) is referred to as the rear side (back side).
- a grill heater 9 that constitutes a radiant heating unit 20 is provided on the top surface side of the heating chamber 5.
- the grill heater 9, which is a heat source is composed of a single sheath heater, and is arranged on the top surface side and has a bent shape (see FIG. 10 ).
- the grill heater 9 is driven and controlled in a grill mode (radiant heating operation) in which an object to be heated housed in the heating chamber 5 is cooked by radiant heat.
- a microwave heating section 21 is provided in the machine room 3 arranged on the bottom side of the heating room 5.
- Main components of the microwave heating unit 21 include a magnetron 15 that is a microwave generation unit, an inverter 16 that drives the magnetron 15, a cooling fan 17 that cools the components inside the machine room 3, and the like. Drive control is performed by a control unit described later. Further, the microwave heating unit 21 guides the microwave generated by the magnetron 15 toward the heating chamber 5, and the microwave guided by the waveguide 18 into the heating chamber 5.
- a microwave supply 19 for emitting is included. The microwave supply unit 19 is disposed in the center of the bottom surface of the heating chamber 5, and is configured by an opening formed in the upper surface of the end portion of the waveguide 18.
- a stirrer 23 is provided above the microwave supply unit 19 in order to stir the microwaves emitted from the microwave supply unit 19.
- the stirrer 23 has a blade that is rotationally driven by a stirrer drive unit (motor: not shown) provided in the machine chamber 3 to stir the radiated microwave. Therefore, in the heating cooker 1 of the first embodiment, the microwaves stirred from the bottom side of the heating chamber 5 are uniformly radiated into the heating chamber 5.
- a hot air circulation heating unit 22 is provided as a heating and cooking source in addition to the radiant heating unit 20 and the microwave heating unit 21, and includes a microcomputer (microcomputer). The drive is controlled by a control unit (not shown).
- a convection heater 10 that is a heat source for performing hot air circulation heating
- a circulation fan 11 that is a blast source
- a fan drive unit 12 (motor) that drives the circulation fan 11, and the like are heated. It is provided on the back side of the chamber 5.
- the hot air circulation heating unit 22 also includes a wind duct 13 and a wind guide 14, which will be described later.
- the wind duct 13 and the wind guide 14 are provided on the top surface side of the heating chamber 5, and regulate the flow velocity and the blowing direction of the wind to the heating chamber 5.
- the wind duct 13 and the wind guide 14 are provided inside the heating chamber 5, and define the flow rate and the blowing direction of the air blown from the circulation fan 11 to the heating chamber 5. It becomes 60.
- the heating chamber flow passage forming unit 60 forms a circulation flow passage for the air blown into the heating chamber 5.
- the radiant heating unit 20 in order to perform heating and cooking on the object to be heated housed in the heating chamber 5, the radiant heating unit 20, the microwave heating unit 21, and the hot air.
- a circulation heating unit 22 is provided.
- the inside temperature detection sensor 50 for detecting the inside temperature of the heating chamber 5 is provided on the top side of the heating chamber 5.
- a thermistor is used as the internal temperature detection sensor 50.
- FIG. 4 is an enlarged cross-sectional view of the internal temperature detection sensor 50.
- the thermistor chip 51 which is the detection end of the internal temperature detection sensor 50, is housed inside the protruding end of a protective pipe 52 (for example, a thin-walled stainless steel pipe) whose front end is closed.
- a heat-resistant inorganic filler 53 having excellent thermal conductivity is filled in the gap between the thermistor chip 51 and the protective tube 52.
- the in-compartment temperature detection sensor 50 configured as described above is provided so as to protrude substantially at the center of the top surface of the heating chamber 5 (see FIG. 3 ).
- the thermal time constant that affects the response of the thermistor the smaller the value, the better the characteristic.
- the specification including the protective tube 52 is within 60 seconds.
- the arrangement position of the inside temperature detection sensor 50 is closely related to the arrangement positions of the respective constituent members in the radiant heating unit 20, the microwave heating unit 21, and the hot air circulation heating unit 22 described above.
- the internal temperature detection sensor 50 is arranged at a specific position in the circulation flow path formed by the hot air circulation heating unit 22. Since the temperature detection operation of the in-compartment temperature detection sensor 50 is executed at least when the circulation fan 11 in the hot air circulation heating unit 22 is operating, the configuration of the hot air circulation heating unit 22 will be described first.
- the hot air circulation heating unit 22 includes a convection heater 10, which serves as a heat source for hot air circulation heating, a circulation fan 11 which serves as an air blowing source, a fan drive unit 12 (motor) for driving the circulation fan 11, and the like on the rear side of the heating chamber 5. It is provided. A plurality of openings are formed in the back wall 5a forming the back surface of the heating chamber 5. Constituent heaters 10, circulation fans 11, fan drive units 12, and other components of the hot air circulation heating unit 22 are arranged in the hot air circulation heating region located on the back side of the inner wall 5a.
- the components of the hot-air circulation heating unit 22 include the wind duct 13 and the wind guide 14 that are the heating chamber flow passage forming unit 60 provided on the top surface side inside the heating chamber 5.
- the details of the arrangement, function, and configuration of the wind duct 13 and the wind guide 14 that are the heating chamber flow passage forming unit 60 will be described later.
- FIG. 5 is a front view showing a back wall 5a which is a back surface of the heating chamber 5.
- a plurality of openings 25 are formed by punching in the central area A and the top surface area B of the back wall 5a. These openings 25 have an opening shape in which microwaves radiated into the heating chamber 5 do not leak.
- the second opening 25b formed in the top surface side region B extending in the width direction (left-right direction) on the top surface side of the inner wall 5a serves as an outlet for blowing air (hot air) into the heating chamber 5.
- the first opening 25a and the second opening 25b have the same opening shape will be described.
- a desired shape depending on the specifications (aspiration amount/blowing amount, etc.) of the heating cooker 1 Is formed.
- FIG. 6 is a front view showing a part of the hot air circulation heating unit 22 arranged in the hot air circulation heating area.
- FIG. 6 shows a state in which the back wall 5a is removed, and the front side of FIG. 6 is the arrangement position of the heating chamber 5.
- FIG. 7 is an exploded perspective view of the hot air circulation heating unit 22 arranged on the back side of the inner wall 5a.
- the convection heater 10 is disposed on the back side of the inner wall 5a.
- the convection heater 10 is formed by spirally forming one sheathed heater. The spiral portion of the convection heater 10 faces the central area A of the back wall 5a, and the air sucked from the first opening 25a of the central area A is heated by the convection heater 10.
- the circulation fan 11 is a centrifugal fan, and has a configuration in which air is sucked from the central portion of the circulation fan 11 and blown out in the centrifugal direction.
- the air sucked from the heating chamber 5 by the drive of the circulation fan 11 is heated by the convection heater 10 to become hot air, and is sucked by the circulation fan 11 inside the hot air circulation frame 28 through the catalyst 26 for purification, and is centrifuged. It is blown out in the direction.
- the air guide frame 27 includes a first air guide 27 a, which is a circular frame provided so as to surround the convection heater 10, and a wind blown in the centrifugal direction of the circulation fan 11 along the top surface side of the heating chamber 5. And a second air guide 27b that guides the air to blow out.
- the air guide frame 27 is fixed to a hot air circulation frame 28 having a rectangular frame shape that surrounds the upper, lower, left and right sides of the air guide frame 27.
- the area defined by the first air guide 27a of the circular frame faces the central area A which is the central portion of the back wall 5a.
- the air sucked from the heating chamber 5 through the central region A of the back wall 5a is guided to the arrangement position of the convection heater 10 and heated to become hot air, which is sucked into the central portion of the circulation fan 11.
- the hot air sucked from the central portion of the circulation fan 11 is guided so as to be blown out along the top surface side by the second air guide 27b arranged around the circulation fan 11.
- the hot air guided to the top surface side by the second air guide 27b comes into contact with the inner surface of the top surface side of the hot air circulation frame 28 and is sent to the heating chamber side (front side).
- the top surface side inner surface of the hot air circulation frame 28 has a plate-shaped third part.
- An air guide 28a is provided.
- the third air guide 28a in the first embodiment will be described as a specific example, but a plurality of third air guides 28a may be arranged in parallel.
- the third air guide 28a is provided on the inner surface of the hot air circulation frame 28 on the top surface side from the heating chamber side. At a position of approximately 1/3 from the left end as viewed, the side surface thereof is extended so as to guide the hot air to the heating chamber side.
- the arrangement position of the third air guide 28a is appropriately set according to the specifications of the circulation fan 11, the shape of the hot air circulation frame 28, and the like.
- the hot air circulation frame 28 is arranged inside the heat insulating frame 30 via a heat insulating material 29. Therefore, the heat of the hot air circulation frame 28 is configured not to be transferred to the outside of the device.
- FIG. 8 is a perspective view showing the hot air circulation heating section 22 in the hot air circulation area (the area on the back side of the inner wall 5a).
- the air sucked through the central portion of the hot air circulation area (the central area A of the back wall 5a) is guided by the first air guide 27a and heated by the convection heater 10 to become hot air, which is circulated. Inhaled by the fan 11.
- the hot air sucked into the circulation fan 11 is blown to the top surface side of the heating chamber 5 by the second air guide 27b and the hot air circulation frame 28 (including the third air guide 28a) arranged outside the circulation fan 11.
- the hot air blown to the top surface side of the heating chamber 5 as described above passes through the circulation flow path formed in the inner space of the heating chamber 5 by the wind duct 13 and the wind guide 14 in the hot air circulation heating unit 22 on the heating chamber side. Flowing The air duct 13 and the air guide 14 constitute a heating chamber flow passage forming portion 60.
- FIG. 9 is a side cross-sectional view showing the arrangement of the wind duct 13 and the wind guide 14 that are the heating chamber flow passage forming portion 60 inside the heating chamber 5.
- the right side region of the heating chamber 5 is the rear side region of the hot air circulation heating region provided with the convection heater 10 and the circulation fan 11, and the left side region of the heating chamber 5 is the front side region.
- the main components arranged inside the heating chamber 5 are shown, and the other components are omitted.
- FIG. 10 is a cross-sectional view of the top surface side of the heating chamber 5 as seen from above, showing the arrangement of the wind duct 13, the wind guide 14, the grill heater 9, and the like. In FIG. 10, the hot air flows from the upper side to the lower side.
- the hot air blown from the top surface side of the back wall 5a of the heating chamber 5 is adjusted to a desired wind pressure (flow velocity) by the wind duct 13 and the wind guide 14, and flows through the circulation flow path inside the heating chamber 5.
- the wind duct 13 is configured to collect and squeeze the hot air blown from the top surface side region B of the back wall 5a, and blow it as a desired wind pressure to the grill heater 9 side provided on the top surface side of the heating chamber 5.
- FIG. 11 is a perspective view showing the wind duct 13.
- 12A is a plan view showing the wind duct 13
- FIG. 12B is a front view thereof
- FIG. 12C is a rear view thereof.
- the air outlet 13b of the wind duct 13 is narrowed more than the air inlet 13a, and is formed to be 30% to 50% smaller in sectional area ratio. ..
- the wind duct 13 is provided with a partition plate 13c that divides the internal space of the wind duct 13 into two parts.
- the partition plate 13c is arranged so that the air blown out from the air outlet 13b of the air duct 13 is substantially even on the left and right.
- the partition plate 13c is arranged displaced from the center position. That is, the upstream side of the suction port 13a (the opening portion on the right side of the suction port 13a in FIG. 11) is designed to be slightly smaller.
- the wind blown forward from the outlet 13 b of the wind duct 13 is blown substantially parallel to the top surface of the heating chamber 5.
- a grill heater 9 that is bent and extends parallel to the top surface of the heating chamber 5 is provided, so that the wind from the outlet 13b is blown to the grill heater 9.
- Two wind guides 14 (14a, 14b) are provided in parallel between the upstream and downstream bent portions of the grill heater 9. Therefore, the wind blown to the top surface side of the heating chamber 5 sequentially contacts the first wind guide 14a and the second wind guide 14b.
- the first wind guide 14a and the second wind guide 14b are fixed to the top wall of the heating chamber 5, and each is arranged so as to face the air outlet 13b of the wind duct 13.
- the center of the air outlet 13b of the air duct 13 in the width direction is on the center line P (see FIG. 10) from the rear surface side to the front surface side of the heating chamber 5.
- the centers of the first wind guide 14a and the second wind guide 14b in the width direction are on the center line P, and the first wind guide 14a and the second wind guide 14b are extended so as to be orthogonal to the center line P. ing. Therefore, the first wind guide 14a and the second wind guide 14b are orthogonal to the substantial blowing direction (the direction from the top to the bottom in FIG. 10) of the wind blown from the outlet 13b of the wind duct 13. It has a contact surface.
- the heights of the first wind guide 14a and the second wind guide 14b are such that the first wind guide 14a on the upstream side is the second wind guide 14b on the downstream side. Is set lower than that of the grill heater 9 and the lower end of each of the first wind guide 14a and the second wind guide 14b is set below the lower surface of the grill heater 9.
- the width of each of the first wind guide 14a and the second wind guide 14b (the widthwise dimension of the heating chamber 5) is set to be narrower in the first wind guide 14a than in the second wind guide 14b.
- the wind blown out from the outlet 13b of the wind duct 13 is directed to the first wind guide 14a and the second wind guide 14b. They are sequentially brought into contact with each other and are blown down from substantially the entire top surface of the heating chamber 5 to the lower side.
- the internal temperature detection sensor 50 is provided in the circulation flow path from the outlet 13b of the wind duct 13 to the first wind guide 14a. It is arranged. In the configuration of the first embodiment, it is provided immediately upstream of the first wind guide 14a. Specifically, it is preferable that the thermistor chip 51, which is the detection end of the inside temperature detection sensor 50, is arranged 5 mm to 15 mm upstream from the contact surface of the first wind guide 14a.
- a position 5 mm to 15 mm upstream from the contact surface of the first wind guide 14a is a position in the vicinity of the first wind guide 14a, and indicates a position immediately before the first wind guide 14a. That is, in the present disclosure, “vicinity” is a “position having a distance of 5 mm to 15 mm”, and “immediately before” is an upstream position having a “spacing of 5 mm to 15 mm”. In the present embodiment, “vicinity” can be rephrased as “within a predetermined region” and “immediately before” can be rephrased as “within a predetermined interval”.
- the position in the height direction of the thermistor chip 51 of the in-compartment temperature detection sensor 50 is arranged at a height of half (including approximately half) of the contact surface of the first wind guide 14a.
- the height of the first wind guide 14a (the protruding dimension from the top surface) is 25 mm to 33 mm
- the height of the thermistor chip 51 (the protruding length from the top surface) is 12 mm to 16 mm. It is preferable that
- the internal temperature detection sensor 50 is arranged at a specific position with respect to the wind duct 13 and the wind guide 14.
- the operation of detecting the in-compartment temperature by the in-compartment temperature detection sensor 50 is performed at least when the circulating fan 11 is driven to form the air circulation passage inside the heating chamber 5. Done. That is, the in-compartment temperature detection sensor 50 performs the in-compartment temperature detection operation when in contact with the air circulating inside the heating chamber 5.
- the circulation fan 11 when the circulation fan 11 is not driven, the heating cooking is not performed, and the temperature detection operation of the in-compartment temperature detection sensor 50 is stopped.
- FIG. 13 schematically shows, with arrows, the flow of air convection in the heating chamber 5 by driving the circulation fan 11 in the configuration of the heating cooker according to the first embodiment.
- the inside temperature detection sensor 50 is arranged at a position where the air blown out from the air outlet 13b of the air duct 13 directly contacts. Specifically, the in-compartment temperature detection sensor 50 is surely exposed to the circulating air that has passed through the heating chamber 5, passes through the hot air circulation heating region from the center side region of the back wall, and is blown out again from the air outlet 13b of the air duct 13.
- the configuration is That is, the internal temperature detection sensor 50 is provided in the circulation flow path inside the heating chamber 5.
- the circulation fan 11 is always operating during the period when the temperature inside the refrigerator should be detected, and the circulation fan 11 is stopped when the cooking is stopped.
- the circulation fan 11 when the cooking operation is performed, the circulation fan 11 is operating even when the hot air circulation heating unit 22 is not operating (when the convection heater is not operating).
- At least the inside of the heating chamber 5 is provided with an air circulation channel.
- the radiant heating unit 20 is configured by the grill heater 9 arranged on the top surface side of the heating chamber 5, as described above. As is apparent from FIGS. 9 and 10, the grill heater 9 is bent and extended so as to meander in parallel with the top surface of the heating chamber 5. The grill heater 9 is arranged on substantially the entire top surface of the heating chamber 5 from a position immediately before the outlet 13b of the air duct 13 to a position near the door 4 on the front surface of the heating chamber 5. Further, as shown in FIG.
- the grill heaters 9 are configured to have a high disposition density in a region near the air outlet 13b and a low disposition density in a region near the door 4. This is for heating the inner space of the heating chamber 5 at a uniform temperature, and is set in consideration of the wind force of the air blown from the blowout port 13b and the position of the wind guide 14.
- the position of the grill heater 9 in the height direction may be any position as long as it is the height of the air outlet 13b of the air duct 13, and the position where the wind from the air outlet 13b directly contacts the grill heater 9.
- the inside temperature detection sensor 50 is on the upstream side of the first wind guide 14a, and the contact surface of the first wind guide 14a. Is provided directly above (including substantially directly above) the grill heater 9 at the position closest to (see FIG. 9).
- the microwave heating unit 21 includes the magnetron 15 that is a microwave generation unit, the microwave supply unit 19 that radiates microwaves to the heating chamber 5, and the like. It is arranged in the machine room 3 below.
- the corresponding inverter 16 is provided in front of the magnetron 15 in the machine room 3.
- the cooling fans 17 are arranged in front of the respective inverters 16 and take in outside air from an outside air suction port (not shown) formed in the front cover 24 of the machine room 3 to the rear of the machine room 3. Send it towards. Therefore, the cooling fan 17 sequentially cools the inverter 16 and the magnetron 15. The air that has cooled the inverter 16 and the magnetron 15 is guided by a duct (not shown) and exhausted from the back side of the heating cooker 1.
- FIG. 14 is a plan view of the bottom surface of the heating chamber 5 seen from above, showing two magnetrons 15 (15a, 15b), the bottom surface of the heating chamber 5, and the respective magnetrons 15 (15a, 15b) to the heating chamber 5. And the waveguides 18 (18a, 18b) arranged side by side to the lower side of the bottom surface of FIG. As shown in FIG. 14, the two magnetrons 15 (15 a, 15 b) are juxtaposed so as to be adjacent to each other on the back side of the machine room 3.
- the output ends of the respective magnetrons 15a and 15b are connected to the waveguides 18a and 18b arranged side by side up to the bottom side of the heating chamber 5, respectively.
- one end of each waveguide 18a, 18b is connected to each magnetron 15a, 15b, and a microwave radiation port 19a, 19b is formed at the other end.
- the microwave radiation ports 19a and 19b of the waveguides 18a and 18b are connected to a microwave supply unit 19 which is an opening on the bottom surface of the heating chamber 5, and serve as a microwave supply port (antenna) to the heating chamber 5.
- a stirrer shaft 31 is provided between the microwave radiation ports 19a and 19b connected to the microwave supply unit 19.
- the stirrer shaft 31 is a rotating shaft of the stirrer 23 that stirs the microwaves emitted from the microwave supply unit 19, and is provided on the bottom surface side of the heating chamber 5.
- the microwave temperature supplying sensor 19 is provided at the upstream side of the stirrer shaft 31 with respect to the microwave heating unit 21. Is disposed at a position on the top surface side that faces (see FIG. 14). That is, the inside temperature detection sensor 50 is arranged at a position on the top surface side facing the region between the two microwave radiation ports 19a and 19b.
- the inventor of the present disclosure relates that the temperature detected by the in-compartment temperature detection sensor 50 is closely related to the arrangement positions of the respective constituent members in the radiant heating section 20, the microwave heating section 21, and the hot air circulation heating section 22.
- An experiment was conducted to verify that Based on the result of the verification experiment, the inside temperature detection sensor 50 in the heating cooker 1 according to the first embodiment described above corresponds to the inside center temperature (the temperature at the substantially central position of the heating space in the heating chamber 5). Are arranged at optimal positions that change proportionally.
- FIG. 15 is a diagram showing a position where the inside temperature detecting sensor 50 is arranged on the top surface side of the heating chamber 5 in the verification experiment.
- FIG. 15 is a view of the top surface side of the heating chamber 5 as seen from above.
- the in-compartment temperature detection sensors 50 were arranged at four positions (A, B, C, D) on the top surface side of the heating chamber 5. Note that in FIG. 15, hot air flows downward from the air outlet 13b of the air duct 13.
- the arrangement position A is the arrangement position used in the first embodiment, and is directly above the grill heater 9 on the upstream side of the first wind guide 14a.
- the thermistor chip 51 which is the detection end of the inside temperature detection sensor 50, is arranged 10 mm upstream from the contact surface of the first wind guide 14a.
- the distance from the thermistor chip 51 to the grill heater 9 is preferably 3 mm to 6 mm.
- the thermistor chip 51 has a good detection response to the operation of the grill heater 9 because the distance to the grill heater 9 is short, and when the thermistor chip 51 is arranged near the center of the first wind guide 14a, the thermistor chip 51 changes the air flow rate. Responsiveness is improved.
- the height of the first wind guide 14a (the protruding size from the top surface of the heating chamber 5) is 30.5 mm
- the height of the thermistor chip 51 (the protruding length from the top surface of the heating chamber 5) is 15 mm. It was set to 0.5 mm.
- the internal temperature detection sensor 50 the thermistor chip 51, which is a detection end, may be arranged at a height that is half (including approximately half) the height of protrusion from the top surface of the first wind guide 14a. ..
- the arrangement position B is the left end position in the width direction of the suction port 13a inside the wind duct 13.
- the arrangement position C is in the vicinity of the air outlet 13b at the substantially center inside the wind duct 13.
- the arrangement position D is a position deviated from the first wind guide 14a in the width direction (specifically, a position 20 mm away from the left end of the first wind guide 14a), and hot air from the blowout port 13b directly passes through the position. It is a position where it does not hit.
- the height of the thermistor chip 51 (the protruding length from the top surface of the heating chamber 5) was 15.5 mm at any of the positions (A, B, C, D).
- the inside temperature detection sensors 50 are arranged at the four positions (A, B, C, D) shown in FIG. 15 to detect the temperature in each heating mode, and the inside center temperature of the heating chamber 5 (heating A comparative experiment was performed with the temperature at the substantially central position of the heating space in the chamber 5. The result is shown in the graph of FIG.
- the vertical axis shows the temperature [° C.] and the input current [A] in each heating mode
- the horizontal axis shows the time [s].
- the internal temperature of the heating chamber 5 is indicated by a solid line
- the detected temperature at the arrangement position A is indicated by a broken line.
- the temperature detected at the arrangement position B is shown by a one-dot chain line
- the temperature detected at the arrangement position C is shown by a two-dot chain line
- the temperature detected at the arrangement position D is shown by a three-dot chain line.
- this verification experiment is a temperature verification experiment in each heating mode used in normal cooking.
- the order of “preheating mode” ⁇ “grill mode” ⁇ “grill+convection mode” ⁇ “convection mode” is set.
- the heating mode was executed.
- the input current waveform in each heating mode is shown by a thin solid line.
- the internal temperature (solid line) of the inside of the heating chamber 5 where the object to be heated is arranged corresponds to the temperature detected at the arrangement position A (broken line). And is changing in a similar manner.
- the temperatures detected at the other positions B, C, and D were largely dissociated from the center temperature in the refrigerator, and the state of change also showed different movements. Therefore, it is the position of the arrangement position A, that is, the position on the upstream side of the first wind guide 14a in the circulation flow path from the outlet 13b of the wind duct 13 to the first wind guide 14a, and is directly above the grill heater 9 (almost directly above the grill heater 9).
- the position (including) is the optimum position where the in-compartment temperature detection sensor 50 should be arranged in the heating cooker 1.
- the fact that the in-compartment temperature detection sensor 50 detects a rapid temperature rise in the short time after the start of microwave heating means that the wind guide (14a) arranged near the in-compartment temperature detection sensor 50 is It is considered that the temperature rises due to microwave heating.
- the wind guide (14a) arranged inside the heating chamber 5 is made of ceramics and is not a conductor but a dielectric having a small dielectric constant.
- the wind duct 13 and the wind guide 14 are made of cordierite (ceramics made of magnesium oxide, aluminum oxide, and silicon oxide), and have low thermal expansion properties and excellent thermal shock resistance.
- the object to be heated When microwave heating is performed with a large volume of the object to be heated placed inside the heating chamber 5, the object to be heated absorbs the microwave and is heated.
- the wind guide (14a) having a small capacity is microwave-heated, and the wind guide (14a) is short. Temperature rises in time.
- the chamber temperature detection sensor 50 arranged near the wind guide (14a) detects a rapid temperature rise despite the microwave heating, and the The state can be detected.
- the heating cooker according to the first embodiment when the internal temperature detection sensor 50 detects a rapid temperature increase in the microwave heating mode, the heating operation is immediately stopped by determining that it is “idling”, It is configured to notify the user that it is "baked in.”
- the interior temperature detection sensor 50 by providing the interior temperature detection sensor 50 at the location A, the interior temperature of the heating chamber 5 can be detected with high accuracy.
- the inside temperature detection sensor 50 functions as a "air-burning" detector capable of detecting "air-burning” in microwave heating in a short time. Thereby, the heating operation can be stopped before the microwave guided from the magnetron 15 to the heating chamber 5 is radiated into the heating chamber 5 and reflected to return to the magnetron 15 to damage the magnetron 15.
- the inside temperature detection sensor is arranged at a specific position of the circulation flow path in the heating chamber. This makes it possible to detect the temperature inside the refrigerator and its change with high accuracy and reliability. Further, the configuration of the heating cooker according to the present disclosure has a configuration capable of reliably detecting "idling" in the "microwave heating mode".
- various heating functions corresponding to the cooking content of the object to be heated are used to appropriately manage the temperature inside the heating chamber and perform optimal heating and cooking.
- the configuration of the heating cooker of the present disclosure it is possible to realize the temperature management having the accuracy that can detect the temperature of the area where the object to be heated is stored with high accuracy and the excellent responsiveness that can be detected instantly without a time lag. You can
- the inside temperature detecting sensor in the heating cooker according to the present disclosure functions at least when the circulation fan in the hot air circulation heating unit is operating. Therefore, in the heating cooker according to the present disclosure, the circulation fan is always operating during the period when the center temperature in the refrigerator should be detected, and stopping the circulation fan means stopping the cooking.
- the heating cooker according to the present disclosure has a configuration capable of detecting the temperature inside the heating chamber with high accuracy, and also in the microwave heating. It is a highly reliable and safe cooker that can immediately detect the state of "idling".
- the heating cooker according to the present disclosure can detect the temperature inside the heating chamber with high accuracy, and can detect the state of “idling” in microwave heating before damage to the microwave generation unit. Therefore, it is a reliable and safe cooker with high market value.
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Abstract
Description
以下、本開示に係る実施の形態1の加熱調理器について、図面を参照しながら説明する。図1は実施の形態1の加熱調理器1の外観を示す斜視図である。図1に示す加熱調理器1においては、正面に設けられた扉4が閉成状態である。図2は、実施の形態1の加熱調理器1において扉4が開成された状態を示す斜視図である。
庫内温度検知センサ50の配設位置は、前述の輻射加熱部20、マイクロ波加熱部21、および熱風循環加熱部22におけるそれぞれの構成部材の配設位置と密接に関連している。特に、熱風循環加熱部22により形成される循環流路における特定の位置に庫内温度検知センサ50が配設されている。庫内温度検知センサ50の温度検知動作は、熱風循環加熱部22における少なくとも循環ファン11が稼働しているときに実行されるため、先ず始めに熱風循環加熱部22の構成について説明する。
熱風循環加熱部22は、熱風循環加熱の熱源となるコンベクションヒータ10、送風源となる循環ファン11、循環ファン11を駆動するためのファン駆動部12(モータ)などが加熱室5の背面側に設けられている。加熱室5の背面を形成する奥壁5aには複数の開口が形成されている。この奥壁5aより背面側の位置となる熱風循環加熱領域にコンベクションヒータ10、循環ファン11、ファン駆動部12などの熱風循環加熱部22の構成部材が配設されている。また、熱風循環加熱部22の構成部材としては、加熱室5内部の天面側に設けられた加熱室内流路形成部60となる風ダクト13および風ガイド14が含まれる。加熱室内流路形成部60である風ダクト13および風ガイド14の配置、機能および構成の詳細については後述する。
上記のように加熱室5の天面側に吹き出された熱風は、加熱室側の熱風循環加熱部22における風ダクト13および風ガイド14により加熱室5の内部空間に形成された循環流路を流れる。これらの風ダクト13および風ガイド14により加熱室内流路形成部60が構成される。
次に、庫内温度検知センサ50の輻射加熱部20に対する配設位置について説明する。輻射加熱部20は、前述のように、加熱室5の天面側に配設されたグリルヒータ9により構成されている。グリルヒータ9は、図9および図10から明らかなように、加熱室5の天面と平行に蛇行するように屈曲して延設されている。グリルヒータ9は、風ダクト13の吹出口13bの直前位置から加熱室5の前面の扉4の近傍位置まで、加熱室5の天面側の略全面に配設されている。また、図10に示すように、グリルヒータ9は、吹出口13bに近い領域においては配設密度が高く、扉4に近い領域においては配設密度が低く構成されている。これは、加熱室5の内部空間に対して均一的な温度で加熱するためであり、吹出口13bから吹き出される空気の風力および風ガイド14の位置を考慮して設定される。グリルヒータ9の高さ方向の位置としては、風ダクト13の吹出口13bの高さであればよく、吹出口13bからの風が直接的にグリルヒータ9に接触する位置であればよい。
次に、庫内温度検知センサ50のマイクロ波加熱部21に対する配設位置について説明する。マイクロ波加熱部21は、前述のように、マイクロ波生成部であるマグネトロン15や、加熱室5にマイクロ波を放射するためのマイクロ波供給部19などを含み、加熱調理器1における本体2の下方である機械室3に配設されている。
本開示の発明者は、庫内温度検知センサ50の検知温度が、輻射加熱部20、マイクロ波加熱部21、および熱風循環加熱部22におけるそれぞれの構成部材の配設位置と密接に関連していることを検証する実験を行った。その検証実験の結果に基づいて、前述の実施の形態1の加熱調理器1における庫内温度検知センサ50は、庫内中心温度(加熱室5における加熱空間の略中央位置の温度)に対応して比例的に変化する最適な位置に配設されている。
また、本開示の発明者が行った庫内温度検知センサ50の検証実験において、「マイクロ波加熱モード」により加熱調理を行った場合であっても、加熱室5の略中央に載置された被加熱物の温度(庫内中心温度)を精度高く検知することができた。また、「マイクロ波加熱モード」においては、加熱室5の内部に被加熱物が存在しない状態でマイクロ波加熱を行った場合、所謂「空焼き」を行った場合には、庫内温度検知センサ50が加熱開始直後に急激な温度上昇を検出した。被加熱物をマイクロ波加熱した場合には、「空焼き」開始から1分以内に庫内中心温度が急激に温度上昇することはなく、庫内が「空焼き」状態であることが検知できる。
2 本体
3 機械室
4 扉
5 加熱室
5a 奥壁
6 操作表示部
7 載置ラック
8 受け皿
9 グリルヒータ
10 コンベクションヒータ
11 循環ファン
12 ファン駆動部(モータ)
13 風ダクト
13a 吸入口
13b 吹出口
13c 仕切板
14 風ガイド
14a 第1風ガイド
14b 第2風ガイド
15 マグネトロン
16 インバータ
17 冷却ファン
18 導波管
19 マイクロ波供給部
20 輻射加熱部
21 マイクロ波加熱部
22 熱風循環加熱部
23 スタラ
24 フロントカバー
25 開口
50 庫内温度検知センサ
51 サーミスタチップ
52 保護管
53 耐熱無機質充填剤
60 加熱室内流路形成部
Claims (10)
- 被加熱物を収容する加熱室と、
前記加熱室の空気を吸入し、吸入した前記空気を前記加熱室に吹出す循環ファンと、
前記加熱室の内部に配設されるとともに、前記循環ファンから前記加熱室に吹出される前記空気の流速および吹出し方向を規定する加熱室内流路形成部と、
前記加熱室の内部において前記加熱室内流路形成部により形成された前記空気の循環流路に配設され、前記加熱室内流路形成部から所定領域内に設けられた庫内温度検知センサと、
を備えた加熱調理器。 - 前記庫内温度検知センサは、前記循環ファンが稼働しているときに作動するように構成された、請求項1に記載の加熱調理器。
- 前記加熱室を構成する壁面に複数の開口をさらに有し、前記複数の開口は第1の開口群と第2の開口群とを備え、
前記第1の開口群は、前記壁面の中央側領域に配設され、前記循環ファンの稼働により前記加熱室の前記空気を吸入して、
前記第2の開口群は、前記壁面の天面側領域に配設され、前記循環ファンの稼働により前記空気を前記加熱室の前記天面側に吹き出し、
前記加熱室内流路形成部および前記庫内温度検知センサは、前記壁面の天面側に設けられた、請求項2に記載の加熱調理器。 - 前記加熱室内流路形成部は、前記循環ファンにより前記加熱室の前記天面側に吹き出された前記空気の流速を速める風ダクトと、前記風ダクトからの前記吹出し方向を少なくとも前記加熱室の下方に案内する少なくとも1つの風ガイドと、を含む請求項3に記載の加熱調理器。
- 前記庫内温度検知センサは、前記風ダクトから吹出された前記空気が前記風ガイドに到達するまでの前記循環流路に配置された、請求項4に記載の加熱調理器。
- 前記少なくとも1つの風ガイドは、前記循環流路において、前記風ダクトから吹出された前記空気が、前記少なくとも1つの風ガイドのうち最初に到達する第1の風ガイドを有し、
前記庫内温度検知センサは、前記第1の風ガイドの配設位置から所定の間隔内に配設された、請求項5に記載の加熱調理器。 - 前記庫内温度検知センサの検出端は、前記第1の風ガイドの天面からの突出高さの半分の高さに配置された請求項6に記載の加熱調理器。
- 前記加熱室に収容された被加熱物に対して熱風循環加熱を行うための熱源を含む熱風循環加熱部をさらに備え、
前記循環ファンおよび前記加熱室内流路形成部は、前記熱風循環加熱部に含まれる、請求項1から7のいずれか一項に記載の加熱調理器。 - 前記加熱室に収容された被加熱物に対してマイクロ波加熱を行うためのマイクロ波生成部およびマイクロ波供給部を含むマイクロ波加熱部をさらに備え、
前記庫内温度検知センサが、マイクロ波加熱における「空焼き」を検知する検出器として動作するよう構成された、請求項1から8のいずれか一項に記載の加熱調理器。 - 前記加熱室に収容された被加熱物に対して輻射加熱を行う熱源を含む輻射加熱部をさらに備え、
前記加熱室の天面側に設けられた前記輻射加熱部の熱源直上に前記庫内温度検知センサが配置された、請求項1から9のいずれか一項に記載の加熱調理器。
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