JP2014185826A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker in which reception of misoperations in a heating start switch and a release switch is reduced.SOLUTION: A heating cooker 1 includes: a cooking chamber 2 for partitioning a heating chamber 2b where an object to be heated O can be taken in/out of; a door 3 for opening/closing the heating chamber 2b; a microwave oven cooking mechanism 37 for heating by irradiating the object to be heated O with high frequency radio waves; a capacitance type menu key 22 provided at the door 3 and receiving an operation condition of the microwave oven cooking mechanism 37; a mechanical heating start instruction switch 19 provided at the door 3 and receiving an operation start of the microwave oven cooking mechanism 37; and a mechanical release instruction switch 21 provided at the door 3 and receiving a stop of the operation and release of the operation condition of the microwave oven cooking mechanism 37.

Description

  Embodiments according to the present invention relate to a cooking device.

  A conventional cooking device includes a heating start switch, a release switch, and a menu key, each of which includes a capacitance type switch.

JP 2009-139019 A

  In the conventional cooking device, the door is provided with a heating start switch, a release switch, and a menu key that are configured by capacitance switches. For this reason, for example, when the door is opened, an environmental factor that changes the capacitance to any of the heating start switch, the release switch, and the menu key, such as a wet towel, brings these capacitance switches. However, there is a possibility that an input is erroneously received, that is, an erroneous operation is received and the cooking device malfunctions.

  Therefore, the present invention proposes a cooking device that reduces the acceptance of erroneous operations in the heating start switch and the release switch.

  In order to solve the above-described problems, a cooking device according to an embodiment of the present invention includes a cooking chamber that partitions a heating chamber in which an object to be heated can be taken in and out, and a high-frequency heating device that heats the object to be heated by irradiating high-frequency radio waves A capacitive menu key for receiving the operating conditions of the high-frequency heating device, a mechanical heating start switch for receiving the start of operation of the high-frequency heating device, stopping the operation of the high-frequency heating device, and releasing the operating conditions A mechanical release switch.

The front view which shows the heating cooker which concerns on embodiment of this invention. The perspective view which shows the heating cooker which concerns on embodiment of this invention from the front side. The longitudinal cross-sectional view which shows the heating cooker which concerns on embodiment of this invention. The cross-sectional view which shows the heating cooker which concerns on embodiment of this invention. The functional block diagram which shows the heating cooker which concerns on embodiment of this invention. The functional block diagram which shows the other example of the heating cooker which concerns on embodiment of this invention. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on this embodiment receives operation. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on this embodiment receives operation. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on this embodiment receives operation. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on this embodiment receives operation. The figure which shows an example of the display in a display part at the time of turning on the power of the heating cooker which concerns on this embodiment. The figure which shows an example of the display in a display part when the heating cooker which concerns on this embodiment receives operation for a test | inspection. The figure which shows an example of the display in a display part when the heating cooker which concerns on this embodiment receives operation for a test | inspection.

  Hereinafter, an embodiment of a heating cooker according to the present invention will be described with reference to FIGS. 1 to 13.

  FIG. 1 is a front view showing a heating cooker according to an embodiment of the present invention.

  FIG. 2 is a perspective view showing the cooking device according to the embodiment of the present invention from the front side.

  1 shows the cooking device 1 with the door 3 closed, and FIG. 2 shows the cooking device 1 with the door 3 open.

  The heating cooker 1 according to the present embodiment is a so-called superheated steam microwave oven, and has functions of a microwave oven, an oven, and a steam range. As shown in FIG. 1 and FIG. 2, the heating cooker 1 opens and closes a box-shaped cooking chamber 2 that partitions a heating chamber 2 b through which an object to be heated O can be taken in and out through an opening 2 a on the front surface, and an opening 2 a of the cooking chamber 2. And a door 3 to be provided.

  The cooking chamber 2 includes a box-shaped inner box 5 that partitions the heating chamber 2 b, a box-shaped outer box 6 that surrounds the inner box 5, and a tray 7 that supports the inner box 5 and the outer box 6. Is provided.

  The inner box 5 includes a back wall 5a that partitions the heating chamber 2b, a right side wall 5b, a left side wall 5c, a bottom wall 5d, and a top wall 5e. The back wall 5a, the right side wall 5b, the left side wall 5c, the bottom wall 5d and the top wall 5e are metal plate materials, for example, steel plates, which reflect microwaves and confine them in the heating chamber 2b. Adjacent walls are joined by a joining method such as caulking or welding.

  The back wall 5a is sandwiched between an upper hot air outlet 8 and a lower hot air outlet 9, and a central portion of the upper hot air outlet 8 and the lower hot air outlet 9 in which a plurality of small openings are divided into two upper and lower lines and arranged in the width direction. And a plurality of small openings arranged in a circle. The suction port 11 is disposed substantially at the center of the back wall 5a.

  The left side wall 5c includes a steam outlet 13 having a plurality of small openings arranged horizontally.

  The door 3 swings around a swing center line that is disposed at the lower end of the front surface of the cooking chamber 2 and extends left and right. The door 3 closes the heating chamber 2b when it swings around the swing center line and comes into contact with the front surface 2c of the cooking cabinet 2. On the other hand, when the door 3 is separated from the front surface 2c of the cooking chamber 2 and swings around the rotation center line and falls substantially horizontally, the opening 2a is fully opened.

  Moreover, the door 3 is provided with the operation part 15 which can set a heating condition. The operation unit 15 includes an input unit 16 and a display unit 17.

  The input unit 16 includes a heating condition setting dial 18, a heating start instruction switch 19, a release instruction switch 21, a drink key 22a, a food key 22b, a microwave oven key 22c, an oven key 22d, and a steam key 22e. And comprising.

  The heating condition setting dial 18 sequentially switches various selection items such as selection of an operation mode such as manual operation or automatic operation, selection of a heating condition (heating time or heating temperature), selection of an automatic cooking menu based on the rotation operation. . Further, the heating condition setting dial 18 accepts the determination of an item selected alternatively based on the pressing operation.

  The heating start instruction switch 19 and the release instruction switch 21 are tactile switches, which are momentary switches that close the circuit only when pressed and open the circuit at other times.

  The heating start instruction switch 19 receives an operation start instruction for the determined operation mode, heating conditions, and automatic cooking menu. The heating start instruction switch 19 also serves as a “warm” menu selection in the automatic cooking menu that should be selected by operating the heating condition setting dial 18. When the heating start instruction switch 19 is operated without selecting any menu, the heating cooker 1 starts operation with the “warm” menu.

  The release instruction switch 21 receives an instruction for resetting the operation content received by the heating condition setting dial 18 or the heating start instruction switch 19. That is, the release instruction switch 21 receives an instruction for canceling the selection or determination received by the heating condition setting dial 18 or stopping the started operation.

  The drink key 22 a, the food key 22 b, the microwave oven key 22 c, the oven key 22 d, and the steam key 22 e are menu keys 22 that accept an operation for switching the operation mode of the cooking device 1. The menu key 22 is a capacitance type touch sensor, and a known detection method such as a series capacitance / partial pressure comparison method can be adopted.

  Drink key 22a accepts an instruction for forcibly setting the operation mode of heating cooker 1 to a control mode suitable for heating beverages such as water, milk, and sake.

  The bowl key 22b receives an instruction for forcibly setting the operation mode of the heating cooker 1 to a control mode suitable for heating bowls such as vegetables.

  The microwave oven key 22c receives an instruction for forcibly setting the operation mode of the heating cooker 1 to the microwave oven mode.

  The oven key 22d accepts an instruction for forcibly setting the operation mode of the heating cooker 1 to the oven mode.

  The steam key 22e receives an instruction for forcibly setting the operation mode of the heating cooker 1 to the steam mode.

  The display unit 17 displays selection items and determination items based on the operation of the heating condition setting dial 18, operating states of the heating cooker 1 based on the operations of the heating start instruction switch 19 and the release instruction switch 21, and the like.

  Moreover, the heating cooker 1 according to the present embodiment includes a detachable storage tank 23 that stores water that becomes steam for cooking in the steam range, and a detachable tray 24 that stores drainage discharged from the cooking chamber 2. .

  The storage tank 23 is disposed on the left front bottom of the heating cooker 1. The saucer 24 is disposed on the right front bottom of the heating cooker 1.

  The storage tank 23 and the tray 24 are detachable in a drawer shape toward the front of the heating cooker 1 and have a handle on the front surface.

  Furthermore, the heating cooker 1 according to the present embodiment includes a cover member 25 disposed on the front surface of the tray 7. The cover member 25 is disposed below the door 3 and extends over the entire width of the heating cooker 1 or the cooking chamber 2. The cover member 25 holds the storage tank 23 and the tray 24 in a detachable manner.

  FIG. 3 is a longitudinal sectional view showing a heating cooker according to the embodiment of the present invention.

  As shown in FIG. 3, the tray 7 and the outer box 6 of the heating cooker 1 according to the present embodiment cooperate to surround the inner box 5 and support the heating chamber 2 b with a gap 26 therebetween.

  The heating cooker 1 includes an oven cooking mechanism 29 disposed in a gap 26 a that separates the back wall 5 a of the inner box 5 and the back wall 6 a of the outer box 6. The oven cooking mechanism 29 supplies hot air into the heating chamber 2b to heat the article to be heated O.

  The oven cooking mechanism 29 is one of heating units that cook the object to be heated O by heating the inside of the heating chamber 2b. The oven cooking mechanism 29 includes a fan device 31 disposed behind the suction port 11, a plurality of heaters 32 facing the upper hot air discharge port 8 and the lower hot air discharge port 9, and a casing 33. The oven cooking mechanism 29 also serves as a grill cooking mechanism.

  The fan device 31 includes a fan motor 35 that is fixed to the back surface of the casing 33, and a centrifugal fan 36 that is accommodated in the casing 33 and faces the suction port 11 and is fixed to the rotation shaft of the fan motor 35.

  The heater 32 surrounds the fan device 31 in an annular shape, and includes an upper side portion 32 a disposed behind the upper hot air discharge port 8 and a lower side portion 32 b disposed behind the lower hot air discharge port 9.

  The casing 33 is a processed sheet metal product and houses the centrifugal fan 36 and the heater 32 of the fan device 31, and the hot air is heated behind the upper hot air outlet 8, the lower hot air outlet 9, and the inlet 11 of the back wall 5 a. Divide the road.

  The oven cooking mechanism 29 drives the fan device 31 to suck the air in the heating chamber 2 b into the casing 33 from the suction port 11 and heats the air discharged around the centrifugal fan 36 by the heater 32 to be heated. The heated air is discharged from the upper hot air outlet 8 and the lower hot air outlet 9 into the heating chamber 2b to heat the object to be heated O in the heating chamber 2b.

  The heating cooker 1 includes a microwave cooking mechanism 37 that can heat the object to be heated O by irradiating microwaves as high-frequency radio waves into the heating chamber 2b. The microwave cooking mechanism 37 is also one of heating units that cook the object to be heated O by heating the inside of the heating chamber 2b. The microwave cooking mechanism 37 is a high-frequency heating device that heats the object to be heated O by irradiating it with microwaves.

  The microwave oven cooking mechanism 37 includes a magnetron 38 capable of generating microwaves located in the lower half of the gap 26 a and a microwave generated by the magnetron 38 located in the gap 26 b separating the inner box 5 and the tray 7. A waveguide 39 that leads to the lower side of the box 5 and an antenna 41 that diffuses microwaves into the inner box 5 are provided.

  The antenna 41 is accommodated in a recess 42 that is disposed on the bottom wall 5d of the inner box 5 and is recessed downward. The radio wave transmitting plate 43 is a plate made of ceramic or the like that transmits microwaves, and closes the concave portion 42 of the inner box 5 so as to cover the antenna 41 to form a flat bottom surface in the heating chamber 2b.

  The microwave cooking mechanism 37 generates a microwave in the magnetron 38, guides the microwave to the lower side of the inner box 5 with the waveguide 39, diffuses it with the antenna 41, and irradiates it into the heating chamber 2b. The object to be heated O is heated.

  On the other hand, the outer box 6 includes a heat insulating material 44 spreading on the inner surface. The heat insulating material 44 is directly applied to the outer surface of the cooking chamber 2 by heat radiated from the inner box 5 or heat transmitted from the gas (high-temperature air or water vapor) convection through the gap 26 separating the inner box 5 and the outer box 6. Suppresses transmission.

  The tray 7 is provided with columnar legs 48 that are provided at the four corners of the bottom surface of the heating cooker 1 and support the weight of the entire heating cooker 1.

  Furthermore, the heating cooker 1 includes a temperature measuring device 51 that measures the temperature of the object to be heated O in the heating chamber 2b. The temperature measuring device 51 measures the inside of the heating chamber 2 b through a temperature measuring window 52 opened at the top of the inner box 5.

  The temperature measuring device 51 measures the temperature of the object to be heated O by dividing the inside of the heating chamber 2b into a plurality of locations. Specifically, the temperature measuring device 51 includes an infrared sensor 53 that is provided in the upper part of the heating chamber 2b and detects infrared rays in the heating chamber 2b, and a drive device 55 that swings the infrared sensor 53.

  The infrared sensor 53 includes a plurality of, for example, eight infrared detection elements (not shown) arranged in a line.

  The drive device 55 includes an output shaft 56 connected to the infrared sensor 53. The output shaft 56 is the swing center of the infrared sensor 53. The drive device 55 repeats normal rotation and reverse rotation of the output shaft 56 to swing the infrared sensor 53, and expands the visual field of the infrared sensor 53 to almost the entire bottom surface in the heating chamber 2b.

  For example, the temperature measuring device 51 swings the infrared sensor 53 with one cycle of 5 seconds, and measures 16 temperatures per infrared detection element. That is, the temperature measuring device 51 measures 128 temperatures per cycle. The specific configuration of the temperature measuring device 51 can employ the configuration described in Japanese Patent Laid-Open No. 2005-351666.

  Furthermore, the cooking device 1 includes a control board (not shown) for adjusting the operation of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 (described later in FIG. 4) in the gap 26b.

  FIG. 4 is a cross-sectional view showing the heating cooker according to the embodiment of the present invention.

  As shown in FIG. 4, the heating cooker 1 according to this embodiment includes a steam cooking mechanism 59 that can heat an object to be heated O in a heating chamber 2 b with cooking steam. The steam cooking mechanism 59 is one of heating devices that heat the object to be heated O in the heating chamber 2b.

  The steam cooking mechanism 59 includes a storage tank 23, a steam generator 61 that can supply cooking steam into the heating chamber 2 b to heat the article to be heated O, and an electric pump 62 that pumps water from the storage tank 23 to the steam generator 61. And a hose 63 that fluidly connects the electric pump 62 and the steam generator 61.

  In addition, the steam which the steam cooking mechanism 59 pumps water from the storage tank 23 and emits for cooking is called “cooking steam”. Further, when simply referred to as “steam”, both steam generated from an object to be heated and cooking steam by heating of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 are included.

  The steam generator 61 is disposed in a gap 26 c that separates the left side wall 5 c of the inner box 5 and the left side wall 6 c of the outer box 6. The steam generator 61 heats the article to be heated O by supplying cooking steam from the steam outlet 13 into the heating chamber 2b. The steam generator 61 includes an evaporation heater 65 that heats water and generates cooking steam.

  FIG. 5 is a functional block diagram showing the heating cooker according to the embodiment of the present invention.

  As shown in FIG. 5, the heating cooker 1 according to this embodiment includes a display unit 17, a heating condition setting dial 18, a heating start instruction switch 19, a release instruction switch 21, a drink key 22 a, a food key 22 b, and a microwave oven. In addition to the key 22c, the oven key 22d, the steam key 22e, the oven cooking mechanism 29, the microwave cooking mechanism 37, the temperature measuring device 51, the steam cooking mechanism 59, and the control device 67, a door opening / closing sensor 69, a notification unit 71, Is provided.

  The heating condition setting dial 18 receives input of heating conditions of the oven cooking mechanism 29 and the microwave cooking mechanism 37 set by the user. This heating condition includes the high frequency radio wave irradiation time t of the microwave cooking mechanism 37.

  The door open / close sensor 69 is a so-called micro switch, and reliably detects whether the door 3 is closed by combining a plurality of micro switches.

  The notification unit 71 sounds a buzzer sound for notifying the user of the end of the operation of the oven cooking mechanism 29 or the microwave cooking mechanism 37.

  The microwave oven cooking mechanism 37 includes an anode current detection circuit 73 as a detection unit that detects a physical quantity (anode current of the magnetron 38) that changes with a change in input voltage and outputs an analog electric signal.

  The control device 67 includes a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer (not shown). The control device 67 is based on operations accepted by the heating condition setting dial 18, the heating start instruction switch 19, the release instruction switch 21, the drink key 22a, the drink key 22b, the microwave key 22c, the oven key 22d, and the steam key 22e. The operation of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 is controlled. The control device 67 permits the operation of the oven cooking mechanism 29 and permits the operation of the microwave cooking mechanism 37 when the door 3 is closed by the door opening / closing sensor 69.

  In addition, the control device 67 operates the notification unit 71 to sound a buzzer, and notifies the user of the end of the operation of the oven cooking mechanism 29, the end of the operation of the microwave cooking mechanism 37, and the end of the operation of the steam cooking mechanism 59. .

  Furthermore, the control device 67 selects and determines items based on the operations received by the heating condition setting dial 18, the drink key 22a, the drink key 22b, the microwave key 22c, the oven key 22d, and the steam key 22e, and starts heating. The operating state of the heating cooker 1 based on the operation received by the instruction switch 19 or the release instruction switch 21 is displayed on the display unit 17.

  FIG. 6 is a functional block diagram showing another example of the heating cooker according to the embodiment of the present invention.

  As shown in FIG. 6, the heating cooker 1 according to the present embodiment processes outputs of the drink key 22 a, the food key 22 b, the microwave key 22 c, the oven key 22 d, and the steam key 22 e instead of the control device 67. The first input processing unit 75, the second input processing unit 76 that processes the outputs of the heating start instruction switch 19 and the release instruction switch 21 and relays the output of the first input processing unit 75, and the second input processing unit And a control device 67A for controlling the microwave cooking mechanism 37 and the like according to the output of 76.

  Each of the first input processing unit 75, the second input processing unit 76, and the control device 67A includes a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer. (Not shown).

  The first input processing unit 75 detects the state of the drink key 22a, the drink key 22b, the microwave oven key 22c, the oven key 22d, and the steam key 22e and applies the menu key 22 instructed from the second input processing unit 76. The detection result is transmitted to the second input processing unit 76.

  The second input processing unit 76 detects the states of the heating start instruction switch 19, the release instruction switch 21, and the heating condition setting dial 18, and the detection result and the detection relating to the menu key 22 received from the first input processing unit 75. The results are collected and transmitted to the control device 67A. The second input processing unit 76 communicates with each of the first input processing unit 75 and the control device 67A in both directions. The second input processing unit 76 also receives information for controlling the display unit 17 from the control device 67A.

  The control device 67A detects the oven cooking mechanism 29, the microwave oven from the detection result of the menu key 22 received from the second input processing unit 76, the detection result of the heating start instruction switch 19, the release instruction switch 21, and the heating condition setting dial 18. The cooking mechanism 37 and the steam cooking mechanism 59 are controlled.

  As described above, the cooking device 1 according to the present embodiment is provided with the capacitance type menu key 22 provided on the door 3 and accepting the operating condition of the heating device, and is provided on the door 3 and accepts the start of operation of the heating device. A mechanical heating start instruction switch 19 and a mechanical release instruction switch 21 provided on the door 3 for accepting stop of operation of the heating device and release of the operation condition are provided. The capacitive menu key 22 may erroneously detect an operation when a wet towel or a part of the user's body approaches. On the other hand, the mechanical heating start instruction switch 19 and the release instruction switch 21 do not cause a false detection only when a wet towel or a part of the user's body is approached, and can be operated if not pushed down intentionally. Not accepted. As a result, the cooking device 1 is operated incorrectly even if the menu key 22 erroneously detects an operation due to a wet towel or a part of the user's body approaching the door 3. If the operation is started in the mode, or if the user operates the menu key 22 as intended, the operation will not be canceled by mistake.

  And the heating cooker 1 which concerns on this embodiment interrupts reception of the operating condition with the menu key 22 when the door 3 is open | released.

  A specific example will be described with reference to FIGS.

  Drawing 7 is a figure showing an example of a display in a display part when a cooking-by-heating machine concerning this embodiment receives operation.

  When the heating start instruction switch 19 is operated without selecting any menu, the heating cooker 1 according to the present embodiment starts operation with the “warm” menu and displays as shown in FIG. While the “range” indicating that the microwave oven mode is selected is blinking in the unit 17, the “automatic menu” indicating that the automatic cooking menu is selected, and the “rice” warming menu among the automatic cooking menus are displayed. While displaying “1” indicating selection, the heating device is operated in the operation mode being displayed. When the heating start instruction switch 19 is operated once again within a predetermined time, for example, 5 seconds from the start, the heating cooker 1 causes the display unit 17 to be in the microwave mode as shown in FIG. 7B. "Range" indicating that the menu is selected, "Auto menu" indicating that the automatic cooking menu is selected, and "2" indicating that the warming menu of "side dish" is selected from the automatic cooking menu Is displayed, and the heating device is operated in the operation mode being displayed. That is, the heating cooker 1 accepts the operation of the heating start instruction switch 19 even during the operation of the heating device, and switches between arbitrary menus, for example, “rice” and “side dish” in the automatic cooking menu.

  FIG. 8 is a diagram illustrating an example of display on the display unit when the cooking device according to the present embodiment receives an operation.

  When the microwave oven key 22c is operated, the heating cooker 1 according to the present embodiment, as shown in FIG. 8 (a), “range” indicating that the microwave oven mode is selected on the display unit 17, “Output setting” and “600 W” representing the output of the microwave cooking mechanism 37 are displayed. When the heating condition setting dial 18 is operated, the heating cooker 1 indicates the operation time of the microwave cooking mechanism 37 on the display unit 17 as shown in FIG. “Time setting” and “20 seconds” are displayed. Further, when the heating start instruction switch 19 is operated, the heating cooker 1 causes the display unit 17 to blink “range” indicating that the microwave oven mode is selected, as shown in FIG. However, the microwave oven cooking mechanism 37 is operated according to the setting being displayed.

  FIG. 9 is a diagram illustrating an example of display on the display unit when the cooking device according to the present embodiment receives an operation.

  When the oven key 22d is operated, the heating cooker 1 according to the present embodiment informs the display unit 17 that it is necessary to manually set the heating conditions, as shown in FIG. “Setting” and “Stone kiln oven” indicating that the oven mode is selected are displayed. When the heating condition setting dial 18 is operated, the heating cooker 1 displays “180” indicating the heating temperature of the oven cooking mechanism 29 on the display unit 17, as shown in FIG. “℃” is displayed. When the oven key 22d is operated again, the heating cooker 1 determines the heating temperature, and when the heating condition setting dial 18 is further operated, as shown in FIG. Then, “30 minutes” representing the heating time of the oven cooking mechanism 29 is displayed on the display unit 17. When the heating start instruction switch 19 is operated, the heating cooker 1 blinks “stone kiln oven” indicating that the oven mode is selected on the display unit 17 as shown in FIG. However, the oven cooking mechanism 29 is operated according to the setting being displayed.

  7 to 9, when the heating is finished, the user of the heating cooker 1 opens the door 3 and takes out the heated article O to be heated from the cooking cabinet 2. At this time, that is, when the door 3 is open, the heating cooker 1 interrupts reception of the operating condition from the menu key 22 and does not change the display of the display unit 17 even if the menu key 22 is touched. .

  FIG. 10 is a diagram illustrating an example of display on the display unit when the cooking device according to the present embodiment receives an operation.

  When the drink key 22a is operated, the heating cooker 1 according to the present embodiment, as shown in FIG. 10 (a), "range" indicating that the microwave oven mode is selected on the display unit 17, automatic “Automatic menu” indicating that the cooking menu is selected, and “3” indicating that the “milk” warming menu is selected from the automatic cooking menu are displayed. Then, when the beverage key 22a is operated again, the heating cooker 1 "range" indicating that the microwave oven mode is selected on the display unit 17, as shown in FIG. An “automatic menu” indicating that the menu is selected and “4” indicating that the “alcohol” warming menu is selected from the automatic cooking menu are displayed. When the heating start instruction switch 19 is operated, the heating cooker 1 displays “range” indicating that the microwave oven mode is selected on the display unit 17 and “automatic cooking menu”. “4” indicating that the “alcohol” warming menu is selected from the “automatic menu” and the automatic cooking menu is displayed, and the heating device is operated in the displayed operation mode.

  Then, when “milk” or “alcohol” is selected from the automatic cooking menu, that is, when “3” or “4” is displayed on the display unit 17, the heating cooker 1 again Even if the drink key 22a is operated, the menu does not change between the “milk” and “alcohol” menus.

  That is, when the heating device is being operated, the menu key 22 interrupts reception of the operating conditions. Thereby, the cooking device 1 avoids malfunction of the menu key 22 that is a capacitive touch sensor due to microwaves emitted from the microwave cooking mechanism 37, particularly the magnetron 38.

  Next, specific examples of the inspection of the menu key 22 at the time of manufacturing the heating cooker 1 and after-sales service after shipment will be described with reference to FIGS.

  In the cooking device 1, in the manufacturing process, the program for the inspection mode for confirming whether the menu key 22 operates normally is the control device 67, the control device 67A, the first input processing unit 75, and the second input. It is incorporated in one of the processing units 76. The cooking device 1 stores pass / fail of the inspection mode in a non-volatile memory (not shown).

  FIG. 11 is a diagram illustrating an example of display on the display unit when the cooking device according to the present embodiment is turned on.

  If it is confirmed that the menu key 22 operates normally in the inspection mode, the heating cooker 1 according to the present embodiment records that the nonvolatile memory has passed. In the cooking device 1 according to the present embodiment, after confirming that the menu key 22 operates normally, that is, if it is recorded that the nonvolatile memory has passed, when the power is turned on, As shown in FIG. 11A, only “0” representing that the menu key 22 has passed the inspection is displayed on the display unit 17.

  On the other hand, the heating cooker 1 according to the present embodiment is turned on unless the menu key 22 is confirmed to operate normally, that is, it is not recorded that the nonvolatile memory has passed. 11 (b), “0” indicating that the menu key 22 has not yet been inspected is displayed on the display unit 17 and, for example, “door open / close”, “high temperature caution”, “cooling” Turn on the characters “Water Supply”.

  By these two types of display when the power is turned on, the heating cooker 1 can immediately determine whether or not the inspection mode for confirming whether or not the menu key 22 operates normally has already passed.

  FIG. 12 is a diagram illustrating an example of display on the display unit when the cooking device according to the present embodiment receives an operation for inspection.

  When the menu key 22 is not confirmed to operate normally, that is, when the display of FIG. 11B is performed on the display unit 17, the heating cooker 1 according to the present embodiment has a heating start instruction switch. When 19 or the release instruction switch 21 is continuously pressed down a plurality of times, for example, three times, the mode is changed to the inspection mode, and as shown in FIG. “00 000” is temporarily displayed. These five “0” displays are assigned to the respective menu keys 22 and correspond to the order in which the drink key 22a, the drink key 22b, the microwave oven key 22c, the oven key 22d, and the steam key 22e are arranged. It is preferable.

  And when all the menu keys 22 have not detected a touch, the heating cooker 1 displays “-----” indicating that the menu key 22 has not detected a touch on the display unit 17. To do. At this time, for example, when “0” at the left end assigned to the drink key 22a is not switched to “−”, specifically, “0 −−−−” is displayed on the display unit 17, the drink It can be seen that the state in which the key 22a is touched is detected.

  Here, when a conductive jig that can touch all the menu keys 22 at the same time is touched to all the menu keys 22, when all the menu keys 22 are normal, the cooking device 1 displays the menu key on the display unit 17. “11 111” indicating that 22 detects a touch is displayed, and the fact that the menu key 22 has passed the inspection is recorded in the nonvolatile memory. At this time, if the “−” at the left end assigned to the drink key 22a does not change to “1”, specifically, “−1 111” is displayed on the display unit 17, the drink key 22a is touched. It can be seen that is not detected.

  In this inspection mode, the heating cooker 1 can perform inspection by pressing all the touch keys simultaneously with a jig, so that the inspection can be performed in a short time without pressing the respective menu keys 22.

  And the cooking device 1 can change to the 2nd test | inspection mode for grasping | ascertaining the condition of the menu key 22 in detail, when one of the menu keys 22 does not pass a test | inspection, ie, fails. The program for the second inspection mode is also incorporated in one of the control device 67, the control device 67A, the first input processing unit 75, and the second input processing unit 76.

  FIG. 13 is a diagram illustrating an example of display on the display unit when the cooking device according to the present embodiment receives an operation for inspection.

  The heating cooker 1 according to the present embodiment has an arbitrary input pattern predetermined by the heating start instruction switch 19 or the release instruction switch 21, for example, continuously pressed down twice, continuously pressed down for 3 seconds or more, and continuously 2 When pressed down, the mode is changed to the second inspection mode, and as shown in FIG. 13A, “CH1” representing the transition to the second inspection mode is temporarily displayed on the display unit 17.

  The cooking device 1 displays FIG. 13A for about 1 second, for example, and then displays two numbers “660” and “0” on the display unit 17 as shown in FIG. 13B. A number column “660” arranged on the left side is a detection value when the menu key 22 is not pressed, and is a reference value. The number column of “0” arranged on the right side is a change amount of the detection value of the menu key 22, and when the menu key 22 is touched, it changes as “82” shown in FIG. When the amount of change exceeds a predetermined value, the menu key 22 detects a touch.

  The “CH1” display is assigned to the drink key 22a, for example. Similarly, the drink key 22b is “CH2”, the microwave key 22c is “CH3”, the oven key 22d is “CH4”, and the steam key 22e is Assigned to “CH5”. Switching from “CH1” to “CH5” is changed by the heating condition setting dial 18 as shown in FIG.

  The heating cooker 1 according to the present embodiment configured as described above includes a heating start instruction switch 19 to which a mechanical switch is applied, so that an erroneous input or erroneous detection is temporarily input to the capacitance type menu key 22. Even if there is, the operation of the heating device can be reliably prevented as long as the force to push down the mechanical switch does not act. On the other hand, the heating cooker 1 is provided with a release instruction switch 21 that applies a mechanical switch, so that even if there is an erroneous input or erroneous detection on the capacitance menu key 22, a mechanical switch By applying a force that pushes down, the operation of the heating apparatus can be reliably stopped without depending on the interference of microwaves.

  Moreover, the heating cooker 1 which concerns on this embodiment interrupts reception of the operating condition with the menu key 22 when the door 3 is open | released, and the wet towel in the vicinity of the heating cooker 1 Even if a part of the user's body approaches, false detection can be prevented.

  Furthermore, the heating cooker 1 according to the present embodiment interrupts the reception of the operating condition with the menu key 22 when the heating device is operated, thereby the menu key 22 by the microwave emitted by the magnetron 38. Prevent false detection.

  Furthermore, since the cooking device 1 according to the present embodiment can transition to the inspection mode by operating the heating start instruction switch 19 or the release instruction switch 21 which is a mechanical switch, the inspection mode is caused by a failure of the menu key 22. You can avoid the situation that you can not transition to.

  Moreover, since the heating cooker 1 which concerns on this embodiment is equipped with the inspection mode which can test | inspect the menu key 22 collectively, and the 2nd inspection mode which can test | inspect each menu key 22 independently, If the menu key 22 is defective, the details of the defect can be confirmed.

  Therefore, according to the heating cooker 1 according to the present embodiment, it is possible to reduce the acceptance of erroneous operations in the heating start instruction switch 19 and the release instruction switch 21.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Heating cooker 2 Cooking chamber 2a Opening 2b Heating chamber 2c Front surface 3 Door 5 Inner box 5a Back wall 5b Right side wall 5c Left side wall 5d Bottom wall 5e Top wall 6 Outer box 6a Back wall 6c Left side wall 7 Tray 8 Upper hot air outlet 9 Lower hot air outlet 11 Suction port 13 Steam outlet 15 Operation unit 16 Input unit 17 Display unit 18 Heating condition setting dial 19 Heating start instruction switch 21 Release instruction switch 22 Menu key 22a Drink key 22b Food key 22c Microwave oven key 22d Oven key 22e Steam key 23 Storage tank 24 Dish 25 Cover members 26, 26a, 26b, 26c Clearance 29 Oven cooking mechanism 31 Fan device 32 Heater 32a Upper side 32b Lower side 33 Casing 35 Fan motor 36 Centrifugal fan 37 Microwave cooking mechanism 38 Magnetron 39 Waveguide 41 Antenna 42 Recess 43 Radio wave transmission Plate 44 Heat insulating material 45 Ventilation hole 48 Leg 51 Temperature measuring device 52 Temperature measuring window 53 Infrared sensor 55 Driving device 56 Output shaft 59 Steam cooking mechanism 61 Steam generating device 62 Electric pump 63 Hose 65 Evaporating heater 67, 67A Control device 69 Door Open / close sensor 71 notification unit 73 anode current detection circuit 75 first input processing unit 76 second input processing unit

Claims (7)

A cooking chamber that partitions a heating chamber in which an object to be heated can be taken in and out;
A high-frequency heating device for irradiating and heating the object to be heated with high-frequency radio waves;
Capacitance type menu key for receiving the operating conditions of the high-frequency heating device,
A mechanical heating start switch for accepting operation start of the high-frequency heating device;
A heating cooker comprising: a mechanical release switch that accepts stop of operation of the high-frequency heating device and release of operating conditions. The cooking device according to claim 1, wherein the menu key, the heating start switch, and the release switch are provided and a door that opens and closes the heating chamber. The cooking device according to claim 2, wherein the menu key interrupts reception of operating conditions when the door is open. The cooking device according to any one of claims 1 to 3, wherein when the high-frequency heating device is operated, the menu key interrupts reception of operating conditions. The cooking device according to any one of claims 1 to 4, wherein the menu key inspection mode is changed by operating the heating start switch or the release switch. The cooking device according to any one of claims 1 to 5, wherein a transition is made to a plurality of inspection modes of the menu key by a combination operation of the heating start switch and the release switch. A first input processing unit for processing the output of the menu key;
While processing the output of the heating start switch and the release switch, the second input processing unit that relays the output of the first input processing unit,
The heating cooker of any one of Claim 1 to 6 provided with the control part which controls the said high frequency heating apparatus according to the output of said 2nd input process part.

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