JP2016161261A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooker enabling excellent finish on the basis of an accurate weight of an object to be cooked without user's input, and capable of improving convenience.SOLUTION: A controller 80 includes: a steam control unit 80a that controls a steam generator so as to supply a predetermined amount of steam from the steam generator to a storage unit in cooking start; and a weight estimation unit 80b that stops the steam generator after supplying the predetermined amount of steam to the storage unit from the steam generator controlled by the steam control unit 80a, and on the basis of temperature change or temperature of an object to be heated in the storage unit detected by an infrared sensor 303, estimates a weight of the object to be heated.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a cooker, and more particularly to a cooker having a function of estimating the weight of an object to be cooked using steam.

  2. Description of the Related Art Conventionally, as a cooking device, a cooking course and an amount of a food to be cooked are input by a user operation, and then cooking is performed in a heating sequence corresponding to the amount of the cooking course and the food to be cooked (for example, special No. 2007-303740 (Patent Document 1)).

JP 2007-303740 A

  By the way, in the above-mentioned cooker, after the user selects a cooking course, the rough amount (number, etc.) of the food to be cooked is entered at the user's discretion, so the weight of the food to be cooked cannot be set accurately. There is a problem. In that case, there is a possibility that cooking with good finish cannot be performed with a heating sequence suitable for the weight of the object to be cooked.

  Moreover, in the said cooking device, since the operation which inputs the quantity of to-be-cooked material by a user every time it cooks, there exists a problem that convenience is bad.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cooking device that can cook well based on the exact weight of an object to be cooked without input by the user and can improve convenience.

In order to solve the above problems, the cooker of the present invention is:
An accommodating portion for accommodating an object to be heated;
A steam generator for generating steam to be supplied into the housing part;
An infrared sensor for detecting the temperature of the object to be heated in the housing;
A control device for controlling the steam generator,
The control device
A steam controller for controlling the steam generator so as to supply steam from the steam generator into the housing;
The object to be heated in the container detected by the infrared sensor in a state where the steam generator is stopped after supplying a predetermined amount of steam from the steam generator controlled by the steam controller into the container. And a weight estimation unit for estimating the weight of the object to be heated based on the temperature change or temperature.

Moreover, in the cooker of one embodiment,
A fan for stirring the gas in the housing part,
The control device
In a state where the steam generator is stopped after supplying the predetermined amount of steam from the steam generator controlled by the steam control unit into the storage unit, the gas in the storage unit is stirred by the fan. A fan control unit for controlling the fan;

Moreover, in the cooker of one embodiment,
The infrared sensor is an area sensor that detects temperatures at a plurality of locations in the housing portion.

Moreover, in the cooker of one embodiment,
The predetermined amount of steam supplied from the steam generating device into the housing portion is set so that the housing portion is filled with steam.

Moreover, in the cooker of one embodiment,
A heating unit for heating the object to be heated in the housing unit;
The control device
In the cooking that is performed after estimating the weight of the object to be heated by the weight estimating unit and using at least one of the steam generator or the heating unit, the object to be estimated estimated by the weight estimating unit is used. The heating sequence is controlled based on the weight of the heated object.

  As is clear from the above, according to the present invention, the temperature of the object to be heated in the housing portion after the stop of the steam generator is reduced in a state where the steam generator is stopped after supplying a predetermined amount of steam from the steam generator. The weight of the object to be heated is estimated by the weight estimation unit based on the change in the temperature of the object to be heated in the storage unit, and the weight of the object to be cooked is not input by the user. Based on this, it is possible to realize a cooker capable of cooking with good finish and improving convenience.

FIG. 1: is a schematic front view at the time of the door closing of the heating cooker as an example of the cooking appliance of 1st Embodiment of this invention. FIG. 2 is a schematic front view of the heating cooker when the door is opened. FIG. 3 is a schematic diagram for explaining the configuration of the main part of the cooking device. FIG. 4 is a schematic diagram for explaining a configuration of a main part including an air supply unit of the heating cooker. FIG. 5A is a schematic diagram for explaining the operation of the infrared sensor of the cooking device. Drawing 5B is a mimetic diagram for explaining operation of an infrared sensor of the above-mentioned cooking-by-heating machine. FIG. 5C is a schematic diagram for explaining the operation of the infrared sensor of the cooking device. Drawing 5D is a mimetic diagram for explaining operation of an infrared sensor of the above-mentioned cooking-by-heating machine. FIG. 6 is a schematic diagram for explaining the configuration of the main part including the exhaust unit of the heating cooker. FIG. 7 is a control block diagram of the cooking device. FIG. 8 is a perspective view of a state where a part of the main casing of the heating cooker is removed. FIG. 9 is a diagram showing the detection temperature of the infrared sensor when a predetermined amount of water vapor is supplied into a heating chamber containing 100 g of thin sliced meat. FIG. 10 is a diagram showing the detection temperature of the infrared sensor when a predetermined amount of water vapor is supplied into a heating chamber containing 200 g of thin sliced meat. FIG. 11 is a schematic configuration diagram of a cooking system according to the fourth embodiment of the present invention.

  Hereinafter, the cooker of this invention is demonstrated in detail by embodiment of illustration.

[First Embodiment]
FIG. 1: shows the schematic front view at the time of the door closing of the heating cooker as an example of the cooking appliance of 1st Embodiment of this invention, FIG. 2: has shown the schematic front view at the time of the door opening of the said heating cooker. .

  As shown in FIGS. 1 and 2, the heating cooker according to the first embodiment is a rectangular parallelepiped main body casing 1, and an example of an accommodating portion provided in the main body casing 1 and having an opening 2 a on the front side. And a door 3 that opens and closes the opening 2a of the heating chamber 2.

  An exhaust duct 5 having an outlet 5 a is provided on the upper side and the rear side of the main body casing 1. A dew receptacle 6 is detachably attached to the lower part of the front surface of the main casing 1. The dew receptacle 6 is located below the door 3 and can receive water droplets from the rear surface of the door 3 (the surface on the heating chamber 2 side) and the front plate 55 of the main casing 1. A water supply tank 26 is also detachably attached to the lower part of the front surface of the main casing 1.

  The door 3 is attached to the front side of the main casing 1 so as to be rotatable about the lower side as an axis. A transparent outer glass 7 having heat resistance is provided on the front surface of the door 3 (the surface opposite to the heating chamber 2). The door 3 has a handle 8 positioned above the outer glass 7 and an operation panel 9 provided on the right side of the outer glass 7.

  The operation panel 9 has a color liquid crystal display unit 10 and a button group 11. The button group 11 includes a cancel key 12 that is pressed when heating is stopped halfway, and a start key 13 that is pressed when heating is started. The operation panel 9 is provided with an infrared light receiving unit 14 that receives infrared rays from a smartphone or the like.

  An object to be heated 15 is accommodated in the heating chamber 2. Moreover, the metal cooking trays 91 and 92 (shown in FIG. 3) can be taken in and out of the heating chamber 2. Upper shelf receivers 16 </ b> A and 16 </ b> B that support the cooking tray 91 are provided on the inner surfaces of the left side 2 b and the right side 2 c of the heating chamber 2. Moreover, lower shelf receivers 17A and 17B that support the cooking tray 92 are provided on the inner surfaces of the right side portion 2c and the left side portion 2b of the heating chamber 2 so as to be positioned below the upper shelf receivers 16A and 16B. .

  Drawing 3 is a mimetic diagram for explaining the composition of the principal part of the above-mentioned cooking-by-heating machine. In this FIG. 3, the state which looked at the heating chamber 2 from the left side is shown. In FIG. 3, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals.

  The heating cooker includes a circulation duct 18, a circulation fan 19, an upper heater 20, an intermediate heater 21, a lower heater 22, a circulation damper 23, a tube pump 25, a water supply tank 26, and a steam generator 70. I have. The upper heater 20, the middle heater 21, and the lower heater 22 are examples of a heating unit, and are each formed of, for example, a sheathed heater. The tube pump 25 is an example of a pump and may be any pump that can switch between a water supply operation and a water discharge operation depending on the driving direction.

  The upper part 2e of the heating chamber 2 is connected to the rear portion 2d of the heating chamber 2 through an inclined portion 2f that is inclined with respect to the horizontal direction. The inclined portion 2f is provided with a plurality of suction ports 27 so as to face the circulation fan 19 (see FIG. 2). A plurality of upper air outlets 28 are provided in the upper part 2 e of the heating chamber 2. A plurality of first rear outlets 29, second rear outlets 30, and third rear outlets 31 are provided in the rear part 2d of the heating chamber 2 (see FIG. 2). In FIG. 3, only one of the plurality of suction ports 27 is shown. Further, in FIG. 3, only one each of the first rear outlet 29, the second rear outlet 30, and the third rear outlet 31 is shown.

  The circulation duct 18 communicates with the inside of the heating chamber 2 through the suction port 27, the upper outlet 28, and the first to third rear outlets 29-31. The circulation duct 18 is provided from the upper side to the rear side of the heating chamber 2 and extends so as to exhibit an inverted L shape. The width in the left-right direction of the circulation duct 18 is set to be narrower than the width in the left-right direction of the heating chamber 2.

  The circulation fan 19 is a centrifugal fan and is driven by a circulation fan motor 56. When the circulation fan motor 56 drives the circulation fan 19, air or saturated steam (hereinafter referred to as “air” or the like) in the heating chamber 2 is sucked into the circulation duct 18 from the plurality of suction ports 27 and circulated. Blows out radially outward of the fan 19. More specifically, on the upper side of the circulation fan 19, air or the like flows obliquely upward from the circulation fan 19 and then flows from the rear toward the front. On the other hand, below the circulation fan 19, air or the like flows obliquely downward from the circulation fan 19 and then flows downward from above. The air is an example of a heat medium.

  An internal temperature sensor 76 (shown in FIG. 7) is disposed in the circulation duct 18 and in the vicinity of the outside of the circulation fan 19. The internal temperature sensor 76 detects the temperature of the heat medium sucked from the heating chamber 2 through the suction port 27, that is, the internal temperature.

  The upper heater 20 is disposed in the circulation duct 18 and faces the upper portion 2 e of the heating chamber 2. The upper heater 20 heats air flowing to the upper outlet 28.

  The middle heater 21 is formed in an annular shape and surrounds the circulation fan 19. The middle heater 21 heats air or the like from the circulation fan 19 toward the upper heater 20 or heats air or the like from the circulation fan 19 toward the lower heater 22.

  The lower heater 22 is disposed in the circulation duct 18 and faces the rear portion 2 d of the heating chamber 2. The lower heater 22 heats air flowing to the second and third rear outlets 30 and 31.

  The circulation damper 23 is rotatably provided in the circulation duct 18 and between the middle heater 21 and the lower heater 22. The circulation damper 23 is rotated by a circulation damper motor 59 (shown in FIG. 7).

  Further, the steam generator 70 includes a metal steam generating container 71 having an upper opening, a lid portion 72 made of a heat resistant resin (for example, PPS (polyphenylene sulfide) resin) covering the upper opening of the steam generating container 71, and And a steam generating heater 73 formed of a sheathed heater cast into the bottom 71a of the steam generating container 71. Water from the water supply tank 26 accumulates on the bottom 71a of the steam generation container 71, and a steam generation heater 73 as an example of a heat source heats the water through the steam generation container 71. The saturated steam generated by heating by the steam generating heater 73 flows through the resin steam tube 35 and the metal steam pipe 36 and is supplied into the heating chamber 2 through the plurality of steam supply ports 37. (See FIG. 2). In FIG. 3, only one of the plurality of steam supply ports 37 is shown.

  The saturated steam in the heating chamber 2 is sent to the upper heater 20, the middle heater 21 and the lower heater 22 by the circulation fan 19, and heated by the upper heater 20, the middle heater 21 and the lower heater 22, thereby being 100 ° C. It becomes the above superheated steam.

  A water level sensor 75 comprising a pair of electrode rods 75a and 75b is attached to the lid portion 72. Based on whether or not the electrode rods 75a and 75b are in a conductive state, it is determined whether or not the water level on the bottom 71a of the steam generating container 71 has reached a predetermined water level.

  The tube pump 25 squeezes the elastically deformable water supply / drainage tube 40 made of silicon rubber or the like with a roller (not shown), and causes the water in the water supply tank 26 to flow to the steam generator 70 depending on the driving direction of the roller. Or the water in the steam generator 70 is caused to flow into the water supply tank 26. The water supply / drainage tube 40 is an example of a water supply path.

  The water supply tank 26 has a water supply tank main body 41 and a communication pipe 42. One end of the communication pipe 42 is located in the water supply tank body 41, while the other end of the communication pipe 42 is located outside the water supply tank 26. When the water supply tank 26 is accommodated in the tank cover 43, the other end of the communication pipe 42 is connected to the water supply / drainage tube 40 via the tank joint 44. That is, the inside of the water supply tank main body 41 communicates with the inside of the steam generator 70 via the communication pipe 42 and the like.

  The tube pump 25, the water supply tank 26, the water supply / drainage tube 40, the tank cover 43, and the tank joint portion 44 constitute a water supply device.

  FIG. 4 is a schematic diagram for explaining a configuration including the air supply unit 100 of the heating cooker. Also in FIG. 4, the state which looked at the heating chamber 2 from the left side is shown similarly to FIG. In FIG. 4, the same components as those in FIG. 3 are denoted by the same reference numerals.

  In addition, a plurality of air supply ports 50 that are opened and closed by an air supply damper 51 are provided in the inclined portion 2f of the heating chamber 2 (see FIG. 2). The plurality of air supply ports 50 and the air supply fan 54 are connected via the air supply passage 101. A cooling damper 52 is provided in the first cooling passage 102 that branches from the vicinity of the air inlet 50 of the air supply passage 101. For example, the air supply fan 54 is a sirocco fan.

  Further, the infrared sensor unit 300 is disposed in the recess 310 provided in the upper part 2e of the heating chamber 2.

  The air supply fan 54 serves as a cooling fan for cooling the circulation fan motor 56 (shown in FIG. 3) and the infrared sensor unit 300. The air supply damper 51 is an example of an air supply opening / closing part. The cooling damper 52 is an example of a cooling passage opening / closing part. The air supply damper 51 (air supply opening / closing portion) and the cooling damper 52 (cooling passage opening / closing portion) constitute a switching mechanism.

  A schematic diagram showing the configuration of the infrared sensor unit 300 is shown in the lower circle of FIG. As shown in FIG. 4, the infrared sensor unit 300 includes a cylindrical housing 301 in which the axial direction is attached to a recess 310 provided in the upper part 2 e of the heating chamber 2 in the front-rear direction and the horizontal direction, and the cylindrical housing 301. A cylindrical sensor holding portion 302 rotatably supported inside, an infrared sensor 303 held by the sensor holding portion 302, and a front end of the cylindrical housing 301 are attached to the sensor holding portion 302. And an infrared sensor motor 304 to be driven. In this embodiment, the infrared sensor 303 is an area sensor that detects the temperature of 64 regions of 8 × 8, but the infrared sensor is not limited to this and may be a line sensor in which sensor portions are arranged in a straight line. .

  This infrared sensor unit 300 turns the detection surface of the infrared sensor 303 toward the inside of the heating chamber 2 by rotating the cylindrical sensor holding portion 302 by the infrared sensor motor 304, and also detects the detection surface of the infrared sensor 303. Is rotated within a predetermined angle range (for example, 20 degrees) along the horizontal direction and the vertical plane of the main casing 1 (see FIGS. 5A to 5D).

  In FIG. 4, the air from the air supply fan 54 is supplied into the heating chamber 2 through the plurality of air supply ports 50 with the air supply damper 51 open. At this time, the first cooling passage 102 is closed by the cooling damper 52. Further, excess air in the heating chamber 2 naturally flows out from the natural exhaust port 45 to the fourth air passage 204.

  Next, when the air supply damper 51 is closed and the plurality of air supply ports 50 are closed and the first cooling passage 102 is opened by the cooling damper 52, a part of the air from the air supply fan 54 is exchanged with the air supply passage 101. It is supplied to the circulation fan motor 56 (shown in FIG. 3) via the first cooling passage 102.

  Further, by closing the air supply damper 51, the second cooling passage 103 provided in the vicinity of the air supply damper 51 opens, and the infrared sensor unit 300 in which the remaining air from the air supply fan 54 is disposed on the top surface side. To be supplied. The supply air passage 101, the first cooling passage 102, and the second cooling passage 103 constitute a cooling passage for cooling the circulation fan motor 56 (shown in FIG. 3) and the infrared sensor 303.

  Moreover, FIG. 5A-FIG. 5D has shown the schematic diagram for demonstrating operation | movement of the infrared sensor 303 of the said heating cooker.

  5A and 5B show a temperature detection range by the infrared sensor 303 (shown in FIG. 4) of the infrared sensor unit 300 when detecting the temperature of the object to be heated on the cooking tray 91 placed on the upper stage. The temperature detection range shown in FIG. 5A is the left region on the cooking tray 91 in front view, and the temperature detection range shown in FIG. 5B is the right region on the cooking tray 91 in front view. The cylindrical sensor holding portion 302 having the infrared sensor 303 is rotated by the infrared sensor motor 304 to swing the detection surface of the infrared sensor 303 in the left-right direction. In this embodiment, the temperature detection range of the infrared sensor 303 is divided into three regions: a left region shown in FIG. 5A, a right region shown in FIG. 5B, and a central region between the left region and the right region. However, it may be divided into four or more regions.

  5C and 5D show the temperature detection range by the infrared sensor 303 (shown in FIG. 4) of the infrared sensor unit 300 when detecting the temperature of the object to be heated on the bottom surface of the heating chamber 2. The temperature detection range shown in FIG. 5C is the left region on the bottom surface of the heating chamber 2 in front view, and the temperature detection range shown in FIG. 5D is the right region on the bottom surface of the heating chamber 2 in front view. In this embodiment, as in FIGS. 5A and 5B, the temperature detection range of the infrared sensor 303 is between the left region shown in FIG. 5C, the right region shown in FIG. 5D, and the left region and the right region. Although it is divided into three areas of the central area, it may be divided into a plurality of areas of 4 or more.

  Moreover, FIG. 6 has shown the schematic diagram for demonstrating the structure containing the exhaust unit 200 of the said heating cooker. Also in FIG. 6, the state which looked at the heating chamber 2 from the left side is shown similarly to FIG. In FIG. 6, 201 is a first air passage, 202 is a second air passage, 203 is a third air passage, and 207 is a dilution area section.

  A natural exhaust port 45 is provided at the lower end of the rear portion 2d of the heating chamber 2 (see FIG. 2). The natural exhaust port 45 communicates with the exhaust duct 5 through the fourth air passage 204 of the exhaust unit 200 (shown in FIG. 8) and the like. When the air in the heating chamber 2 becomes excessive, the excess air naturally flows out from the natural exhaust port 45 to the fourth air passage 204. A part of the air blown from the exhaust fan 47 is supplied to the front side in the main body casing 1 (shown in FIG. 1) via the third air passage 203.

  A plurality of forced exhaust ports 48 that are opened and closed by an exhaust damper 49 are provided in the inclined portion 2f of the heating chamber 2 (see FIG. 2). The forced exhaust port 48 communicates with the exhaust duct 5 via an exhaust unit 200 (shown in FIG. 8).

  A humidity sensor 53 is attached to the exhaust unit 200. The humidity sensor 53 sends a signal indicating the amount of steam contained in the exhaust gas flowing through the second wind passage 202 to the control device 80 (shown in FIG. 7).

  FIG. 7 shows a control block diagram of the cooking device.

  The cooking device includes a control device 80 including a microcomputer and an input / output circuit. The control device 80 includes an upper heater 20, an intermediate heater 21, a lower heater 22, a steam generating heater 73, a circulation fan motor 56, an exhaust fan motor 57, an air supply fan motor 58, a circulation damper motor 59, Exhaust damper motor 60, supply damper motor 61, cooling damper motor 62, operation panel 9, humidity sensor 53, internal temperature sensor 76, water level sensor 75, tube pump 25, magnetron 4, infrared sensor 303, infrared sensor A motor 304 or the like is connected. The magnetron 4 is an example of a heating unit.

  The internal temperature sensor 76 is disposed in the vicinity of the circulation fan 19 and detects the temperature in the circulation duct 18. The temperature in the circulation duct 18 detected by the internal temperature sensor 76 is substantially the same as the temperature of the atmosphere in the heating chamber 2 sucked through the suction port 27 by the driving of the circulation fan 19, that is, the internal temperature. .

  The control device 80 includes a steam control unit 80a that controls the steam generation device 70, a weight estimation unit 80b that estimates the weight of the object to be heated, and a heater that controls the upper heater 20, the middle heater 21, and the lower heater 22. The controller 80c includes a fan controller 80d that controls the circulation fan 19 (shown in FIG. 3), the air supply fan 54 (shown in FIG. 4), and the exhaust fan 47 (shown in FIG. 6).

  The said control apparatus 80 controls the steam generation apparatus 70 by the steam control part 80a at the time of a cooking start, and stops the steam generation apparatus 70, after supplying a predetermined amount of steam from the steam generation apparatus 70 in the heating chamber 2. FIG. Next, the circulation fan 19 is rotated by the fan control unit 80d so that air or steam in the heating chamber 2 is sucked into the circulation duct 18 from the plurality of suction ports 27 and blown out radially outward of the circulation fan 19. The inside of the heating chamber 2 is stirred. And the temperature of the to-be-heated object mounted on the bottom face in the heating chamber 2 after the stop of the steam generator 70 is detected by the infrared sensor 303, and based on the change in the temperature of the to-be-heated object in the heating chamber 2. Thus, the weight of the object to be heated is estimated by the weight estimation unit 80b.

  The control device 80 is based on signals from the operation panel 9, humidity sensor 53, internal temperature sensor 76, water level sensor 75, infrared sensor 303, etc., for upper heater 20, middle heater 21, lower heater 22, and steam generation Heater 73, circulation fan motor 56, exhaust fan motor 57, supply fan motor 58, circulation damper motor 59, exhaust damper motor 60, supply damper motor 61, cooling damper motor 62, tube pump 25 , Magnetron 4, infrared sensor motor 304 and the like are controlled.

  FIG. 8 shows a perspective view of the heating cooker from which the upper surface plate 1a and the rear surface plate (not shown) covering the upper surface and both side surfaces of the main casing 1 (shown in FIG. 1) are removed as viewed from the rear and obliquely upward. . In FIG. 8, the same components as those in FIGS. 1 to 7 are denoted by the same reference numerals.

  As shown in FIG. 8, an air supply unit 100 is provided on the rear side and the left side (right side in FIG. 8) of the heating chamber 2. The air supply unit 100 includes an air supply fan 54 arranged on the lower side, an air supply passage 101 extending upward from the air supply fan 54, and a branch from the upper side of the air supply passage 101, It has the 1st cooling channel | path 102 extended toward the motor 56 for circulation fans located in the center of the rear upper part of the store | warehouse | chamber 2. As shown in FIG. Specifically, the air supply unit 100 extends upward from the air supply fan 54 so as to exhibit an inverted L shape.

  Further, an exhaust unit 200 is provided on the rear side and the right side (left side in FIG. 8) of the heating chamber 2. The exhaust unit 200 includes a housing 210 including an exhaust unit cover 220 and an exhaust fan 47 disposed below the housing 210.

  An exhaust damper motor 60 is disposed on the right side of the upper portion of the exhaust unit 200 (left side in FIG. 8). The exhaust damper motor 60 (shown in FIG. 6) is opened and closed by the exhaust damper motor 60.

  A partition plate 312 is erected in the front-rear direction on the upper portion 2 e of the heating chamber 2. By this partition plate 312, the cooling air flowing from the second cooling passage 103 (shown in FIG. 4) provided in the vicinity of the air supply damper 51 (shown in FIG. 4) to the region of the infrared sensor unit 300 is left in the main casing 1. It is blocked so that it does not flow to the surface.

  In the cooking device having the above configuration, the steam generator 70 is controlled by the steam controller 80a (shown in FIG. 7) at the start of cooking, and after a predetermined amount of steam is supplied from the steam generator 70, the steam generator 70 is stopped. In this state, the temperature of the object to be heated in the heating chamber 2 is detected by the infrared sensor 303, and the weight of the object to be heated is detected by the weight estimation unit 80b (shown in FIG. 7) based on the change in the temperature of the object to be heated. Is estimated.

  In this embodiment, the steam generating heater 73 (shown in FIG. 7) is turned on by the steam control unit 80a for 30 seconds.

  Immediately after the stop of the steam generator 70, the temperature of the steam supplied into the heating chamber 2 is detected by the infrared sensor 303, and the steam is condensed on the surface of the object to be heated as time passes, so that the infrared sensor 303 The detected temperature of the object to be heated decreases. The tendency of the temperature of the object to be heated at this time changes according to the weight of the object to be heated. The heavier the object to be heated, the more the condensation on the surface of the object to be heated is detected by the infrared sensor 303. The temperature drop of the heated object increases. By utilizing the correlation between the weight of the object to be heated and the temperature change of the object to be heated, the weight of the object to be heated can be estimated by the weight estimation unit 80b.

  In the first embodiment, the weight of the object to be heated is estimated by the weight estimation unit 80b based on the change in the temperature of the object to be heated after the steam generator 70 is stopped, but the steam generator 70 is stopped. The weight of the object to be heated may be estimated based on the temperature of the object to be heated after a predetermined time has elapsed.

  Further, in a state in which the steam generator 70 is stopped after supplying a predetermined amount of steam from the steam generator 70, the circulation fan 19 (shown in FIG. 3) is controlled by the fan controller 80 d, and the heating chamber 2 is controlled by the circulation fan 19. Stir the steam filled inside. As a result, the distribution of the vapor in the heating chamber 2 becomes uniform, and the condensation on the surface of the object to be heated is not uneven, so that the temperature change of the object to be heated according to the weight of the object to be heated appears accurately, The weight of the heated object can be estimated more accurately.

  In addition, the fan which stirs the atmosphere in the heating chamber 2 is not limited to the circulation fan 19 and may be another fan such as an air supply fan. Note that the circulation fan may be controlled during the supply of steam to stir the steam, or the steam may be stirred only during the supply of steam.

  Further, by using an area sensor that detects the temperature of a plurality of locations (64 locations in the first embodiment) in the heating chamber 2 as the infrared sensor 303, the temperature change of the heated object can be accurately grasped, and the heated The weight of an object can be estimated more accurately.

  FIG. 9 and FIG. 10 are examples of the results of experiments for thawing frozen thin sliced 100 g and 200 g samples. In this experiment, frozen thin sliced meat was placed on the bottom and center of the heating chamber 2, and the temperature detection range of the infrared sensor 303 was the central region of the bottom surface of the heating chamber 2.

  FIG. 9 shows the detection temperature [° C.] of the infrared sensor 303 (shown in FIG. 4) when a predetermined amount of water vapor is supplied into the heating chamber 2 containing 100 g of sliced meat, and FIG. 10 contains 200 g of sliced meat. The detection temperature [° C.] of the infrared sensor 303 when a predetermined amount of water vapor is supplied into the heating chamber 2 is shown.

  9 and 10 show the initial detected temperature before supplying steam from the steam generator 70 for three samples, and the lower side of FIGS. 9 and 10 shows each sample. The detected temperature is 90 seconds after the supply of steam to the steam generator 70 is stopped.

  Here, the temperature [° C.] of 64 regions (length 8 × width 8) is detected by the infrared sensor 303, and the four regions surrounded by a thick line near the center shown in FIG. 9 determine the temperature of the sliced meat. The six areas surrounded by a thick line near the center shown in FIG. 10 are areas for determining the temperature of the thin sliced meat.

  As is apparent from FIGS. 9 and 10, there is no significant difference in the initial detected temperature before supplying steam from the steam generator 70 between the thin slices 100 g and 200 g, but 90 seconds after the steam generator 70 is stopped. It can be seen that the detected temperature of the infrared sensor 303 is lower in the sample of 200 g of sliced meat than in 100 g of sliced meat.

  By using such a characteristic, the weight estimation unit 80b allows the temperature difference between the initial detected temperature before supplying the steam from the steam generating device 70 and the detected temperature 90 seconds after the stop of the steam generating device 70. Based on Δt, the weight of the frozen sliced meat can be estimated.

  Note that the method of estimating the weight of the object to be heated by the weight estimating unit 80b is not limited to this, and the weight of the object to be heated may be estimated based on the detected temperature after a predetermined time from the stop of the steam generation device 70. .

  In the first embodiment, the weight of the frozen food is estimated as the object to be heated. However, since the weight of the food is estimated using the temperature decrease due to condensation on the food surface, the weight of the refrigerated food is estimated, It is also possible to estimate the food.

[Second Embodiment]
Moreover, the heating cooker of 2nd Embodiment of this invention has the structure same as the heating cooker of 1st Embodiment except the operation | movement of the control apparatus 80, and uses FIGS. 1-8.

  In the heating cooker according to the second embodiment, the predetermined amount is set so that the steam supplied from the steam generator 70 is filled in the heating chamber 2 at the start of cooking, so immediately after the steam generator 70 is stopped. In addition, when the heating chamber 2 is sufficiently filled with steam, dew condensation on the object to be heated is promoted, and the temperature change of the object to be heated can be accurately grasped.

  The heating cooker of the second embodiment has the same effect as the heating cooker of the first embodiment.

[Third Embodiment]
Moreover, the heating cooker of 3rd Embodiment of this invention has the structure same as the heating cooker of 1st Embodiment except the operation | movement of the control apparatus 80, and uses FIGS. 1-8.

  In the cooking device of the third embodiment, the cooking is performed after the weight of the object to be heated is estimated by the weight estimating unit 80b and the steam generator 70 or the heating unit (the magnetron 4, the upper heater 20, the middle heater 21). In the heating cooking using at least one of the lower heaters 22), the control device 80 controls the heating sequence based on the weight of the object to be heated estimated by the weight estimating unit 80b. Thus, an appropriate steam amount (or heating output) and heating time can be set according to the weight of the object to be heated, and cooking with good finish is possible.

  The heating cooker of the said 3rd Embodiment has an effect similar to the heating cooker of 1st Embodiment.

[Fourth Embodiment]
FIG. 11: has shown schematic structure figure of the heating cooking system provided with the heating cooker of 4th Embodiment of this invention. The cooking device of the fourth embodiment has the same configuration as that of the cooking device of the first embodiment except for the operation of the control device 80, and uses FIGS.

  The cooking system includes a cooking device 1100, a family message board server 1400 that communicates with the cooking device 1100, a management server 1500 that communicates with the cooking device 1100, the family message board server 1400, and the like, and a family message board server 1400, management. A plurality of smartphones 1300 as an example of an information terminal that communicates with a server 1500 and the like are provided. Note that the heating cooking system may have one information terminal. In addition, this cooking system receives information such as weather from an information providing server (not shown) via the Internet N.

  The family message board server 1400 and the management server 1500 constitute a cloud computing system. Family message board server 1400 and management server 1500 may be realized by one server.

  The cooking device 1100 includes a wireless communication module 1120 that communicates with the family message board server 1400 and the management server 1500 via the wireless access point 1200 and the Internet network N. The Internet network N is an example of a communication network. The wireless communication module 1120 may be directly connected to the Internet network N.

  The wireless communication module 1120 performs wireless LAN communication with an indoor wireless access point 1200. More specifically, the wireless communication module 1120 uses Wi-Fi (registered trademark), which is a wireless LAN standard as an example of a communication standard, and via an access point 1200, an outdoor family message board server 1400 and management server 1500. Send and receive information to.

  The smartphone 1300 is a device having a function of measuring and processing personal activity information, and is carried by each person making up the family, and the activity information such as one day or half day from the smartphone 1300. Is received and processed by the heating cooker 1100 via the management server 1500, and an appropriate cooking menu is proposed based on the processed data. Here, the suggestion of the cooking menu may be displayed on the color liquid crystal display unit 10 (shown in FIG. 1) or may be proposed by voice.

  The activity information includes calorie consumption and activity environment temperature. For example, in addition to calorie consumption information calculated from a pedometer (registered trademark) or the like, more accurate activity information can be obtained by taking into consideration environmental temperature conditions. Here, for example, the smartphone 1300 communicates with a pedometer using Bluetooth (Bluetooth (registered trademark); wireless communication technology for portable information devices) or the like.

  As personal activity information, the daily calorie consumption is predicted based on the activity information for a certain period or the activity information for a certain period and the activity information for half a day, and a cooking menu is proposed based on the prediction information. .

  The cooking menu proposed in this cooking device is a calorie control cooking menu that is proposed according to whether the predicted calorie consumption is higher or lower than the preset standard calorie intake for each individual, There is a salinity control cooking menu that is proposed as a measure against heat stroke.

  Conventionally, humans consume energy by moving (exercising), and the consumed energy is supplied (ingested) by meals and runs a daily life. In order to maintain a healthy body, a balance between energy (calorie) supply and consumption, daily meal (energy) distribution, and intake of necessary nutrients are indispensable. In general, it is said that eating more calories from eating and drinking than active calories consumed by basal metabolism and various daily activities can cause obesity.

  However, the amount of activity of each individual who makes up the family varies widely. For example, it is very difficult for a housewife to understand the activities of a family other than herself and provide a menu corresponding to each individual or a family member. It was.

  On the other hand, the cooking device of the fourth embodiment helps to consider the health of the family and the daily menu by proposing a cooking menu suitable for the activities and purposes of each individual constituting the family.

  In the said 1st-4th embodiment, although the heating cooker using the upper heater 20, the middle heater 21, and the lower heater 22 was demonstrated as a heating part, it is not restricted to the heating cooker using a heating part, This invention is The present invention may be applied to a cooker that performs cooking without heating.

  Moreover, in the said 1st-4th embodiment, although the multi-eye type infrared sensor (area sensor) was used, the temperature of to-be-heated material may be detected using a monocular type infrared sensor, and a several You may detect the temperature of a to-be-heated object using the infrared sensor (line sensor) in which the detection part was arranged in 1 row.

  In the cooking device of the present invention, healthy cooking can be performed by using superheated steam or saturated steam in a microwave oven or the like. For example, in the cooking device of the present invention, superheated steam or saturated steam having a temperature of 100 ° C. or higher is supplied to the food surface, and the superheated steam or saturated steam attached to the food surface is condensed to give a large amount of latent heat of condensation to the food. So it can efficiently transfer heat to food. Moreover, when condensed water adheres to the food surface and salt and oil are dropped together with condensed water, salt and oil in the food can be reduced. Further, the inside of the heating chamber is filled with superheated steam or saturated steam and becomes in a low oxygen state, thereby enabling cooking while suppressing oxidation of food. Here, the low oxygen state refers to a state where the volume% of oxygen is 10% or less (for example, 0.5 to 3%) in the heating chamber.

  Although specific embodiments of the present invention have been described, the present invention is not limited to the first to fourth embodiments, and various modifications can be made within the scope of the present invention. For example, what combined suitably the content described in the said 1st-4th embodiment is good also as one Embodiment of this invention.

  The present invention and the embodiment are summarized as follows.

The cooker of this invention
An accommodating portion 2 for accommodating an object to be heated;
A steam generator 70 for generating steam to be supplied into the housing part 2;
An infrared sensor 303 for detecting the temperature of the object to be heated in the housing part 2;
A control device 80 for controlling the steam generator 70,
The control device 80 includes:
A steam control unit 80a for controlling the steam generation device 70 so as to supply steam from the steam generation device 70 into the housing unit 2,
The housing detected by the infrared sensor 303 in a state where the steam generating device 70 is stopped after supplying a predetermined amount of steam from the steam generating device 70 controlled by the steam control unit 80a into the housing 2. And a weight estimation unit 80b for estimating the weight of the object to be heated based on a temperature change or temperature of the object to be heated in the unit 2.

  According to the above configuration, the steam generator 70 is controlled by the steam control unit 80a, and after the steam generator 70 is stopped after supplying a predetermined amount of steam from the steam generator 70, the to-be-heated portion in the storage unit 2 is heated. The temperature of the object is detected by the infrared sensor 303, and the weight of the object to be heated is estimated by the weight estimation unit 80b based on the change in the temperature of the object to be heated in the storage unit 2.

  For example, immediately after the steam generator 70 is stopped, the temperature of the steam supplied into the housing portion 2 is detected by the infrared sensor 303, and the steam condenses on the surface of the object to be heated as time passes. The temperature of the heated object detected by 303 is lowered. The tendency of the temperature of the object to be heated at this time changes according to the weight of the object to be heated. As the weight of the object to be heated increases, condensation on the surface of the object to be heated increases and is detected by the infrared sensor 303. The temperature drop of the object to be heated increases. By utilizing the correlation between the weight of the object to be heated and the temperature change of the object to be heated, the weight estimating unit 80b estimates the weight of the object to be heated based on the temperature change or temperature of the object to be heated. be able to.

  Therefore, cooking with good finish can be performed based on the exact weight of the object to be cooked without input by the user, and convenience can be improved.

Moreover, in the cooker of one embodiment,
A fan 19 for stirring the gas in the housing part 2 is provided;
The control device 80 includes:
After supplying the predetermined amount of steam from the steam generator 70 controlled by the steam control unit 80a into the storage unit 2, the steam generator 70 is stopped and the fan 19 is used to stop the inside of the storage unit 2 A fan control unit 80d for controlling the fan 19 so as to stir the gas.

  According to the above embodiment, the steam generator 70 is stopped after supplying a predetermined amount of steam from the steam generator 70 controlled by the steam controller 80a at the start of cooking into the storage unit 2, and the steam generator 70 is stopped. In the state where the fan is stopped, the fan 19 is controlled by the fan control unit 80d, and the steam filled in the housing unit 2 is stirred by the fan 19, so that the distribution of the steam in the housing unit 2 becomes uniform, and the Since there is no unevenness in the condensation on the surface of the object, the temperature change of the object to be heated according to the weight of the object to be heated appears accurately, and the weight of the object to be heated can be estimated more accurately.

Moreover, in the cooker of one embodiment,
The infrared sensor 303 is an area sensor that detects temperatures at a plurality of locations in the housing portion 2.

  According to the above embodiment, by using the area sensor that detects the temperature of a plurality of locations in the housing portion 2 as the infrared sensor 303, the temperature change of the heated object can be accurately grasped, and the weight of the heated object is more accurately determined. Can be estimated.

Moreover, in the cooker of one embodiment,
The predetermined amount of steam supplied from the steam generating device 70 into the housing portion 2 is set so that the housing portion 2 is filled with steam.

  According to the above embodiment, since the predetermined amount is set so that the steam supplied from the steam generator 70 at the start of cooking is filled in the container 2, the container 2 immediately after the steam generator 70 is stopped. When the inside is sufficiently filled with steam, dew condensation on the object to be heated is promoted, and the temperature change of the object to be heated can be accurately grasped.

Moreover, in the cooker of one embodiment,
A heating section (4, 20, 21, 22) for heating the object to be heated in the housing section 2;
The control device 80 includes:
In heating cooking performed after estimating the weight of the object to be heated by the weight estimation unit 80b and using at least one of the steam generator 70 or the heating unit (4, 20, 21, 22) The heating sequence is controlled based on the weight of the object to be heated estimated by the weight estimating unit 80b.

  According to the embodiment, the cooking is performed after the weight of the object to be heated is estimated by the weight estimating unit 80b, and at least one of the steam generator 70 or the heating unit (4, 20, 21, 22) is used. In heating cooking, the controller 80 controls the heating sequence based on the weight of the object to be heated estimated by the weight estimation unit 80b. Accordingly, for example, an appropriate steam amount (or heating output) and heating time can be set according to the weight of the object to be heated, and cooking with good finish becomes possible.

DESCRIPTION OF SYMBOLS 1 ... Main body casing 1a ... Top plate 2 ... Heating chamber 2a ... Opening part 3 ... Door 4 ... Magnetron 5 ... Exhaust duct 5a ... Outlet 6 ... Dew receptacle 7 ... Outer glass 8 ... Handle 9 ... Operation panel 10 ... Color liquid crystal Display unit 11 ... Button group 12 ... Cancel key 13 ... Start key 14 ... Infrared light receiving unit 15 ... Object to be heated 16A, 16B ... Upper shelf holder 17A, 17B ... Lower shelf holder 18 ... Circulation duct 19 ... Circulation fan 20 ... Upper heater 21 ... Middle heater 22 ... Lower heater 23 ... Circulating damper 25 ... Tube pump 26 ... Water supply tank 27 ... Suction port 28 ... Upper outlet 29 ... First rear outlet 30 ... Second rear outlet 31 ... Third rear outlet 35 ... Steam tube 36 ... Steam pipe 37 ... Steam supply port 40 ... Water supply / drain tube 41 ... Water supply tank body 42 ... Communication pipe 43 ... Tank cover 44 ... Tank joy Port 45 ... Natural exhaust port 47 ... Exhaust fan 48 ... Forced exhaust port 49 ... Exhaust damper 50 ... Supply air port 51 ... Supply air damper 52 ... Cooling damper 53 ... Humidity sensor 54 ... Supply air fan 55 ... Front plate 56 ... Circulation Motor for fan 57 ... Motor for exhaust fan
58 ... Motor for air supply fan
59 ... circulation damper motor 60 ... exhaust damper motor 61 ... air supply damper motor 62 ... cooling damper motor 70 ... steam generator 71 ... steam generator 71a ... bottom 72 ... lid part 73 ... steam generator heater 75 ... Water level sensor 75a, 75b ... Electrode rod 76 ... Inside temperature sensor 80 ... Control device 80a ... Steam control unit 80b ... Weight estimation unit 80c ... Heater control unit 80d ... Fan control unit 91, 92 ... Cooking tray 100 ... Air supply unit 101 Air supply passage 102 ... First cooling passage 103 ... Second cooling passage 200 ... Exhaust unit 201 ... First air passage 202 ... Second air passage 203 ... Third air passage 204 ... Fourth air passage 207 ... Dilution area section 300 ... Infrared sensor unit 301 ... Cylinder housing 302 ... Sensor holding part 303 ... Infrared sensor 304 ... Infrared sensor motor DESCRIPTION OF SYMBOLS 310 ... Recess 1100 ... Cooking device 1120 ... Wireless communication module 1200 ... Wireless access point 1300 ... Smartphone 1400 ... Family message board server 1500 ... Management server

Claims (5)

An accommodating portion for accommodating an object to be heated;
A steam generator for generating steam to be supplied into the housing part;
An infrared sensor for detecting the temperature of the object to be heated in the housing;
A control device for controlling the steam generator,
The control device
A steam controller for controlling the steam generator so as to supply steam from the steam generator into the housing;
The object to be heated in the container detected by the infrared sensor in a state where the steam generator is stopped after supplying a predetermined amount of steam from the steam generator controlled by the steam controller into the container. And a weight estimation unit for estimating the weight of the object to be heated based on the temperature change or temperature of the cooking device. The cooker according to claim 1, wherein
A fan for stirring the gas in the housing part,
The control device
In a state where the steam generator is stopped after supplying the predetermined amount of steam from the steam generator controlled by the steam control unit into the storage unit, the gas in the storage unit is stirred by the fan. A cooking device comprising a fan control unit for controlling the fan. The cooker according to claim 1 or 2,
The cooker according to claim 1, wherein the infrared sensor is an area sensor that detects temperatures at a plurality of locations in the housing portion. In the cooking appliance according to any one of claims 1 to 3,
The cooker according to claim 1, wherein the predetermined amount of steam supplied from the steam generator into the housing portion is set so that the steam fills the housing portion. In the cooking appliance according to any one of claims 1 to 4,
A heating unit for heating the object to be heated in the housing unit;
The control device
In the cooking that is performed after estimating the weight of the object to be heated by the weight estimating unit and using at least one of the steam generator or the heating unit, the object to be estimated estimated by the weight estimating unit is used. A cooking device that controls a heating sequence based on a weight of a heated object.