WO2020016965A1 - Heat-cooking device - Google Patents

Heat-cooking device Download PDF

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Publication number
WO2020016965A1
WO2020016965A1 PCT/JP2018/026923 JP2018026923W WO2020016965A1 WO 2020016965 A1 WO2020016965 A1 WO 2020016965A1 JP 2018026923 W JP2018026923 W JP 2018026923W WO 2020016965 A1 WO2020016965 A1 WO 2020016965A1
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WO
WIPO (PCT)
Prior art keywords
light source
light
heating
source
top plate
Prior art date
Application number
PCT/JP2018/026923
Other languages
French (fr)
Japanese (ja)
Inventor
ちづる 井下
Original Assignee
三菱電機株式会社
三菱電機ホーム機器株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社, 三菱電機ホーム機器株式会社 filed Critical 三菱電機株式会社
Priority to CN201880095052.8A priority Critical patent/CN112425261B/en
Priority to EP18927214.9A priority patent/EP3826429B1/en
Priority to JP2020530787A priority patent/JP6937917B2/en
Priority to PCT/JP2018/026923 priority patent/WO2020016965A1/en
Publication of WO2020016965A1 publication Critical patent/WO2020016965A1/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication

Definitions

  • the present invention relates to a heating cooker which shows an operation state of a heating source by light.
  • a heating cooker that heats a cooking vessel placed on a top plate using a heating coil or a resistance heater as a heating source is known.
  • an induction heating type heating cooker was placed via a top plate above a heating coil by a magnetic flux generated by applying an electric current to a metal body such as a heating coil disposed in the heating cooker.
  • An eddy current is generated in the cooking vessel body.
  • the cooking container is heated by Joule heat generated by the eddy current and the resistance of the cooking container body.
  • the heating cooker as described above is different from a heating cooker that heats a cooking container with a flame, because there is no flame during cooking, so that whether or not the heating source is operating and the heating power of the heating source are used. The person cannot see directly. Therefore, various ideas have been proposed to make it easier for the user to grasp the operating state of the cooking device.
  • Patent Literature 2 describes that light transmitted through a slit is reflected on a side surface of the pan, thereby drawing a flame-like pattern on the side surface of the pan.
  • the light emitting section emits light with a constant light emitting area corresponding to the output of the heat source.
  • the light emitting area of the light emitting unit changes at the moment when the output of the heat source changes, so that the user can recognize the change in the output of the heat source.
  • the light emitting area of the light emitting unit does not change.
  • there is no comparison object of the light emitting area of the light emitting unit it is difficult for the user to recognize the presence or absence of the output of the heat source and the degree of the output in a state where there is no change in the output of the heat source.
  • Patent Document 2 aims to give a user an image as if the pan is placed in a flame and a warm feeling by drawing a flame-like pattern on the side of the pan.
  • the technique of Patent Document 2 aims to give a user an image as if the pan is placed in a flame and a warm feeling by drawing a flame-like pattern on the side of the pan.
  • it was sometimes difficult for the user to recognize the flame-like pattern depending on the color of the surface of the pot or the dirt on the surface of the pot. Difficulty in recognizing a flaming pattern is noticeable in visually impaired people such as the elderly.
  • the present invention has been made in view of the above problems, and provides a heating cooker that is easy to recognize that a heating source is operating even for a user having a problem in visual recognition. It is.
  • the heating cooker according to the present invention includes a top plate on which a cooking container is placed, a heating source provided below the top plate, and a position on the top plate where the cooking container is placed.
  • the heating source when the heating source is operating, the light in one direction flowing along the direction parallel to the surface of the top plate is emitted from the transmission part. Since the light flow is visually recognized by the user, the user can easily recognize that the heating source is operating.
  • FIG. 1 is a schematic perspective view of a heating cooker 1 according to Embodiment 1.
  • FIG. 1 is a schematic configuration diagram of a main part of a heating cooker 1 according to Embodiment 1.
  • FIG. FIG. 2 is a schematic plan view of a top plate 3 according to Embodiment 1.
  • 5 is a timing chart illustrating an example of lighting control of the light source according to the first embodiment.
  • 5 is a timing chart illustrating another example of lighting control of the light source according to the first embodiment.
  • 5 is a timing chart illustrating another example of lighting control of the light source according to the first embodiment.
  • 5 is a timing chart illustrating another example of lighting control of the light source according to the first embodiment.
  • FIG. 3 is a schematic plan view of a top plate 3 according to a first modification of the first embodiment.
  • FIG. 5 is a schematic plan view of a top plate 3 according to a second modification of the first embodiment.
  • FIG. 7 is a diagram illustrating a first modification of the first example of the light source lighting control according to the first embodiment.
  • FIG. 6 is a diagram illustrating a second modification of the first example of the lighting control of the light source according to the first embodiment.
  • FIG. 9 is a diagram illustrating a third modification of the first example of the lighting control of the light source according to the first embodiment.
  • FIG. 9 is a diagram illustrating a fourth modification of the first example of the lighting control of the light source according to the first embodiment.
  • FIG. 10 is a schematic plan view of a top plate 3 according to Embodiment 2.
  • FIG. 13 is a schematic plan view of a top plate 3 according to Embodiment 3.
  • FIG. 14 is a diagram illustrating a transmission unit and a plurality of light sources according to a fourth embodiment.
  • 15 is a timing chart illustrating an example of lighting control of a light source according to a fifth embodiment.
  • 15 is a schematic plan view of a top plate 3 according to Embodiment 6. FIG.
  • the heating cooker according to the present invention is applied to a household IH (Induction Heating) heating cooker will be described with reference to the drawings.
  • the present invention is not limited to the following embodiments, and can be variously modified without departing from the gist of the present invention. Further, the present invention includes all combinations of configurations that can be combined among the configurations described in the following embodiments.
  • the cooking device shown in the drawings is an example of a device to which the cooking device of the present invention is applied, and the device to which the present invention is not limited by the cooking device shown in the drawings. .
  • FIG. 1 is a schematic perspective view of a heating cooker 1 according to the first embodiment.
  • the cooking device 1 includes a main body 2 and a top plate 3 arranged on the main body 2.
  • a front operation unit 5 is provided on the front surface of the main body 2.
  • the front operation unit 5 includes a power switch for turning on or off the power of the cooking device 1, a plurality of operation dials for adjusting the heating power, and the like.
  • the top plate 3 is composed of, for example, a heat-resistant glass plate and a metal frame attached around the glass plate.
  • the top plate 3 is provided with a heating port 20 as a heating area.
  • three heating ports 20 are provided.
  • On the upper surface or the lower surface of the top plate 3 corresponding to the heating port 20, a display indicating an area where a cooking container such as a pan or a frying pan is placed is provided.
  • Inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided inside the main body 2 below the heating port 20, a
  • a transmission unit 32 is provided outside each heating port 20 to display a driving state of a heating source arranged below the heating port 20.
  • the transmission section 32 is configured to transmit light emitted from the light emitting section 30 (see FIG. 2) disposed below the top plate 3.
  • the transmissive part 32 of the present embodiment is a part of the top plate 3 made of a glass plate, and is a region where no coating is provided or a coating is provided to the extent that light is transmitted.
  • the opaque glass plate constituting the top plate 3 is cut out, and the transparent portion 32 can be formed by a transparent glass plate fitted in the cut-out position.
  • a material and a structure through which light is transmitted can be used as the transmission unit 32.
  • the overall shape of the transmission portion 32 provided for each heating port 20 extends in a direction away from the outer periphery of the heating port 20.
  • the transmitting sections 32 of the present embodiment each include a plurality of transmitting sections.
  • the plurality of transmission units forming the transmission unit 32 are referred to as a first transmission unit 32A, a second transmission unit 32B, a third transmission unit 32C, and a fourth transmission unit 32D.
  • reference numerals 32A, 32B, 32C, and 32D are assigned only to the transmission sections 32 provided corresponding to the heating coil 4 at the left end of the drawing to prevent the drawing from becoming complicated.
  • the configuration is simply referred to as the transmission section 32.
  • the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D are arranged in this order so as to be away from the heating port 20 to the outside. That is, the first transmission part 32A is disposed closest to the heating port 20, and the second transmission part 32B is disposed at a position farther from the heating port 20 than the first transmission part 32A.
  • the number and shape of the heating coils 4 illustrated in FIG. 1 are not limited to those illustrated.
  • the number of the heating coils 4, that is, the number of the heating sources may be at least one.
  • the operation display unit 6 is provided on the front side of the top plate 3.
  • the operation display unit 6 of the present embodiment includes a display screen having a plurality of light emitting diodes (LEDs) or a liquid crystal display (LCD), and a capacitive touch sensor.
  • the touch sensor acquires a user's operation input via the top plate 3.
  • the operation display unit 6 includes an operation unit, a heat power display unit that indicates the magnitude of the heat power set by the operation unit, and an information display unit that displays information on the setting state and the operation state of the heating cooker 1.
  • the operation unit of the operation display unit 6 receives operation inputs related to settings such as the heating power, temperature, and cooking mode of the heating coil 4 corresponding to each heating port 20, and receives operation inputs related to instructions such as heating start and heating stop. Accept.
  • the information on the operation state of the heating cooker 1 may include the selected cooking mode, the progress of the automatic cooking, the temperature of the cooking container placed on the heating port 20, the warning information, and the like.
  • FIG. 2 is a schematic configuration diagram of a main part of the cooking device 1 according to the first embodiment.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3.
  • FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top
  • the heating coil 4 is arranged below the heating port 20 provided in the top plate 3.
  • the heating coil 4 is a coil formed by winding a conductive wire such as a copper wire or an aluminum wire, and generates a high-frequency magnetic field when a high-frequency current is supplied.
  • the heating coil 4 of the present embodiment has a double annular shape, but the shape and arrangement of the heating coil 4 are not limited to those illustrated.
  • a resistance heating type electric heater that generates heat by passing electricity through the heating element may be provided as a heating source.
  • the coil base 9 is made of a synthetic resin or the like, and accommodates and supports the heating coil 4.
  • the ferrite core 10 is a rod-shaped member made of a non-conductive, ferromagnetic material having high magnetic permeability. By providing the ferrite core 10, the magnetic flux leaking downward from the heating coil 4 is suppressed, so that the heating efficiency can be improved and the cooking container 300 can be uniformly heated.
  • the shape and configuration of the ferrite core 10 do not limit the present invention.
  • the contact temperature sensor 12 is arranged in contact with the lower surface of the top plate 3, that is, the surface facing the heating coil 4. A plurality of contact temperature sensors 12 may be provided for one heating coil 4. The contact temperature sensor 12 detects the temperature of the cooking vessel 300 placed on the top plate 3 via the top plate 3.
  • the infrared sensor 11 detects infrared energy radiated from the bottom of the cooking vessel 300 placed on the top plate 3 on the heating coil 4.
  • the surroundings of the infrared sensor 11 are covered with a sensor case 110 so that cooling air flowing near the heating coil 4 does not directly hit.
  • the infrared sensor 11 is held in the sensor case 110 while keeping a spatial distance so that the ambient temperature around the infrared sensor 11 becomes uniform.
  • the sensor case 110 is fixed to the coil base 9 with a tapping screw or the like, or is formed integrally with the coil base 9. With such a holding structure of the sensor case 110, the distance between the top plate 3 and the infrared sensor 11 is kept constant.
  • a transmission window 16 is provided in the heating port 20 of the top plate 3.
  • the transmission window 16 is provided so that the infrared sensor 11 can detect infrared rays of the cooking container 300 that pass through the top plate 3.
  • the transmission window 16 is provided within a range of the heating port 20 and at a position facing the detection unit of the infrared sensor 11. It is preferable that the transmission window 16 is not coated so that infrared rays can easily pass therethrough. However, if the transmission window 16 is not coated, the heating coil 4 and the wiring inside the main body 2 may be visually recognized from above the top plate 3, which is not desirable in design.
  • a tube or a plate may be provided on the coil base 9 for holding the heating coil 4 and the sensor case 110 in the direction of the top plate 3.
  • the heating coil 4 and the wiring and the like can be hardly seen from the outside.
  • the transmission window 16 may be painted in a dot or stripe shape to reduce the proportion of the unpainted openings. By doing so, it is possible to ensure design and functionality.
  • the temperature detector 13 receives the output values from the infrared sensor 11 and the contact temperature sensor 12, and calculates the temperature of the cooking container 300 based on the received output values.
  • the temperature detecting unit 13 is configured by hardware such as a circuit device that realizes the function, or an arithmetic unit such as a microcomputer and software executed on the arithmetic unit.
  • the control unit 14 controls the operation of the cooking device 1 based on the setting content input to the front operation unit 5 or the operation display unit 6. Further, the control unit 14 controls the inverter 15 based on the cooking temperature set by the user and the temperature of the cooking container 300 calculated by the temperature detection unit 13 to perform heating control. In addition, the control unit 14 controls the operation of the light emitting unit 30 based on an operation input input to the front operation unit 5 or the operation display unit 6.
  • the control unit 14 is constituted by dedicated hardware or a microcomputer having a memory and a CPU executing a program stored in the memory.
  • the control unit 14 may be configured to have the function of the temperature detection unit 13.
  • control unit 14 When the control unit 14 is dedicated hardware, the control unit 14 includes, for example, a single circuit, a composite circuit, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. Applicable. Each of the function units realized by the control unit 14 may be realized by individual hardware, or each function unit may be realized by one piece of hardware.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • each function executed by the control unit 14 is realized by software, firmware, or a combination of software and firmware.
  • Software and firmware are described as programs and stored in a memory.
  • the CPU realizes each function of the control unit 14 by reading and executing a program stored in the memory.
  • the memory is, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, and an EEPROM.
  • the inverter 15 is a drive circuit that converts the AC power of the commercial power supply 200 into a high-frequency current and supplies the high-frequency current to the heating coil 4.
  • the cooking device 1 may include a configuration other than that illustrated in FIG. 2.
  • the cooking device 1 may include a communication unit that performs communication with an external device.
  • the light emitting unit 30 includes a plurality of light sources and a control circuit for individually controlling the light emitting operation of the light sources.
  • the light emitting section 30 of the present embodiment includes a first light source 31A, a second light source 31B, a third light source 31C, and a fourth light source 31D.
  • the light emitting unit 30 of the present embodiment includes four light sources, the number of light sources may be two or more.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D of the present embodiment have light emitting diodes (LEDs) mounted on a substrate.
  • LEDs light emitting diodes
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D which are a plurality of light sources, may be mounted on one substrate, or may be separately mounted on a plurality of substrates.
  • the control circuit provided in the light emitting unit 30 individually turns on or off the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D according to a command from the control unit 14.
  • Each of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D has a light emitting surface having a first transmitting part 32A, a second transmitting part 32B, a third transmitting part 32C, and a fourth transmitting part 32C. It faces the transmission part 32D.
  • the light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are respectively opposed to the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, or the third transmission part 32C. 4
  • the light passes through the transmission part 32D and exits on the top plate 3. The user can visually recognize light emitted from the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, or the fourth transmitting part 32D.
  • each light source can have one or more light emitting elements such as light emitting diodes. Further, a plurality of light emitting elements that emit light of different colors may be provided for one light source. In this case, the color of the light emitted from one light source can be changed by individually turning on or off the plurality of light emitting elements that emit light of different colors by the control circuit of the light emitting unit 30.
  • the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D are configured to transmit light, the light emitting part inside the main body 2 from above the top plate 3 There is a possibility that the substrate 30 and the wiring may be visually recognized, which is not desirable in design. Further, light from a light source other than the opposing light source may enter the transmission part. For example, not only the light from the first light source 31A but also the light from the second light source 31B can enter the first transmitting portion 32A. In these cases, a tube or a plate may be provided between the light-emitting surface side of the light source and the transmission portion to prevent light from the light source from entering a transmission portion other than the opposed transmission portion. .
  • FIG. 3 is a schematic plan view of the top plate 3 according to the first embodiment.
  • the arrangement and shape of the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D will be described.
  • One set of the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D are arranged outside the heating ports 20 with respect to the respective heating ports 20.
  • the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D are linearly arranged in this order along the direction away from the heating port 20.
  • the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D of the present embodiment have a rectangular planar shape and the same area.
  • the first transmission part 32A is provided facing the outer periphery of the circular heating port 20.
  • the first transmission part 32 ⁇ / b> A in FIG. 3 is a rectangle whose side facing the outer periphery of the circular heating port 20 is a long side.
  • the second transmission part 32B is provided opposite to the first transmission part 32A, and has a long side parallel to the long side of the first transmission part 32A.
  • the third transmission part 32C is provided opposite to the second transmission part 32B, and has a long side parallel to the long side of the second transmission part 32B.
  • the fourth transmission part 32D is provided opposite to the third transmission part 32C, and has a long side parallel to the long side of the third transmission part 32C.
  • the number of transmission portions provided for one heating port 20 may be one.
  • a plurality of light sources can be provided to face one transmission unit 32.
  • the number of transmission sections provided for one heating port 20 may be the same as the number of output levels of the heating coil 4 as a heating source, or may be a different number.
  • the number of the light-emission transmission windows of the transmission part 32 does not need to be the same as the set number of heating powers.
  • the heating power setting may be assigned such that the 31A and the second light source 31B are turned on.
  • FIG. 4 is a timing chart illustrating an example of lighting control of the light source according to the first embodiment.
  • FIG. 4 shows the timing of turning off and lighting on each of the first light source 31A to the fourth light source 31D.
  • the horizontal axis in FIG. 4 is time, a period t1 illustrates a period in which the heating power 1 is set, and a period t2 illustrates a period in which the heating power 3 larger than the heating power 1 is set.
  • the lighting control of the first light source 31A to the fourth light source 31D will be described with an example in which the setting is changed from the heating power 1 to the heating power 3.
  • the control unit 14 turns on the first light source 31A when the heating power 1 is set on the front operation unit 5 or the operation display unit 6 and an instruction to start heating is input, and the period a elapses. Then, the first light source 31A is turned off and the second light source 31B is turned on. When the period b elapses after the second light source 31B is turned on, the second light source 31B is turned off and the first light source 31A is turned on. That is, the first light source 31A and the second light source 31B are turned on alternately.
  • the length of the period a per one time when the first light source 31A is turned on is a fixed value.
  • the length of the period b for each turn-on of the second light source 31B is also a fixed value.
  • the control unit 14 controls the first light source 31A and the second light source 31B to blink such that the lighting periods do not overlap during the period t1 in which the heating power 1 is set.
  • the control unit 14 stops the lighting control in the heating power 1 and newly starts the lighting control in the heating power 3 as shown in a period t2.
  • the control unit 14 turns on the first light source 31A, and after the period a elapses, turns off the first light source 31A and turns on the second light source 31B.
  • the second light source 31B is turned off and the third light source 31C is turned on.
  • the third light source 31C is turned off and the fourth light source 31D is turned on.
  • the fourth light source 31D is turned off and the first light source 31A is turned on. That is, assuming that the direction along the order of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D is the first direction, the light sources are sequentially turned on and off in the order along the first direction.
  • the lengths of the periods a to d during which the first light source 31A to the fourth light source 31D are turned on are fixed values.
  • the control unit 14 controls the first light source 31A to the fourth light source 31D to blink such that the lighting periods do not overlap during the period t2 when the heating power 3 is set.
  • the control unit 14 continues the lighting control illustrated in the period t1 and the period t2 until the heating power is changed or the operation of stopping the heating is performed.
  • the control unit 14 when the heating power 2 is set, the control unit 14 causes the first light source 31A, the second light source 31B, and the third light source 31C to blink sequentially in this order.
  • thermal power 1 ⁇ thermal power 2 ⁇ thermal power 3.
  • the control unit 14 causes only the first light source 31A to blink.
  • the thermal power 0.5 is smaller than the thermal power 1.
  • the control unit 14 sequentially arranges, in one direction, the number of the adjacent light sources among the first light source 31A to the fourth light source 31D in accordance with the heating power. Flash.
  • the heating power is small, only the first light source 31A and the second light source 31B close to the heating port 20 are controlled to be turned on, and as the heating power increases, the third light source 31C and the fourth light source 31D are turned on and off. Are added in this order.
  • a user having a viewpoint above the top plate 3 is provided with the light in one direction flowing in a direction parallel to the surface of the top plate 3 from the transmission unit 32. It looks like it is.
  • the first transmitting unit 32A When the lighting control shown in the period t2 in FIG. 4 is performed, in the example shown in FIG. 3, the first transmitting unit 32A, the second transmitting unit 32B, the third transmitting unit 32C, the fourth transmitting unit 32D, and the first transmitting unit. It is visually recognized by the user that light is sequentially emitted in one direction in the order of 32A. That is, the user can visually recognize a stream of light going outward from a position closest to the heating port 20.
  • the order in which the light sources are turned on may be the reverse direction of FIG. Specifically, when the heating power is the smallest, the control unit 14 causes only the fourth light source 31D farthest from the heating port 20 to blink, and causes the third light source to blink with the increase in the heating power. 31C, the second light source 31B, and the first light source 31A are sequentially increased. In this way, a user having a viewpoint above the top plate 3 visually recognizes the flow of light in the direction approaching the heating port 20 as if it were emitted from the transmission part 32.
  • the lengths of the periods a, b, c, and d are all the same.
  • a plurality of light sources are sequentially blinked at equal intervals in this manner, three or more light sources are blinked in the arranged order.
  • the light emitted from the transmission section 32 can be visually recognized by the user as flowing in one direction.
  • the last light source is blinked, and then the first light source is blinked again, the directionality of light can be further emphasized.
  • FIG. 4 the lengths of the periods a, b, c, and d are all the same.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are blinked in this order, and the first light source 31A is blinked again in order.
  • the lengths of the period a, the period b, the period c, and the period d can be within one second. Further, the length of the period a, the period b, the period c, and the period d may be set to 1 second or more, for example, about 2 seconds to 3 seconds. In addition, the flow of light is easily recognized. Further, in the example of FIG. 4 and the examples thereafter, the length of the periods a to d may be changed by the user. In this case, for example, an input unit for inputting the length of the lighting period is provided in the front operation unit 5, and the control unit 14 determines the length of the periods a to d based on the lighting period input to the input unit. .
  • FIG. 5 is a timing chart illustrating another lighting control example of the light source according to the first embodiment.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D turn on one time period a, period b, period c, and period d. Is shorter than that shown in FIG. That is, the cycle of the blinking of the plurality of light sources is different from that of the lighting control example 1.
  • the control unit 14 switches between the lighting control example 1 shown in FIG. 4 and the lighting control example 2 shown in FIG. 5 according to the operating state of the heating source or the state of the cooking device 1. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
  • the control unit 14 switches from the first lighting control to the second lighting control.
  • the target temperature can be set by the front operation unit 5, the operation display unit 6, or the automatic cooking function.
  • the lighting control is switched from the lighting control example 1 to the lighting control example 2
  • the light source blinks while the number of the blinking light sources among the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D is maintained. The period is changed.
  • the user visually recognizes that the flow of light in one direction has changed to a flow at a faster speed than before. In this way, the flow of light in one direction emitted from the transmission unit 32 can be used as a warning display indicating that the temperature of the cooking container 300 has approached the target temperature.
  • lighting control example 1 and lighting control example 2 having different blinking speeds of the light source can be used to express a difference in the output of the heating source.
  • the control unit 14 executes the lighting control example 1 in one of the case where the output of the heating coil 4 is large and the case where the output is small, and executes the lighting control example 2 in the other case. This makes it easier for the user to recognize the difference in the output of the heating source.
  • FIG. 6 is a timing chart illustrating another lighting control example of the light source according to the first embodiment.
  • the control unit 14 simultaneously turns on and off the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D.
  • the lighting control example 3 in which all the light sources are turned on and off in synchronization with the lighting and extinguishing timings is used in combination with one or both of the lighting control example 1 in FIG. 4 and the lighting control example 2 in FIG. Can be
  • the control unit 14 changes the lighting control example illustrated in FIG. 6 from the lighting control example 1 illustrated in FIG. 4 or the lighting control example 2 illustrated in FIG. 5 according to the operating state of the heating source or the state of the heating cooker 1. Switch to 3. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
  • the control unit 14 changes the lighting control example 1 or the lighting control example 2 to the lighting control example 2.
  • Switch to 3 When switched to the lighting control example 3, the user visually recognizes the flow of light in one direction as stopped. In this manner, the blinking light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D that blink simultaneously and emitted from the transmission unit 32 is used as a warning display for the user. be able to.
  • the control unit 14 may perform control to stop heating by the heating source in addition to the lighting control example 3.
  • FIG. 7 is a timing chart illustrating another lighting control example of the light source according to the first embodiment.
  • the vertical axis schematically shows the magnitude of the luminance of the light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D.
  • This lighting control example 4 is the same as the above-described lighting control examples 1 and 2 in that a plurality of light sources are sequentially turned on and off, but in that the brightness of the light sources is reduced stepwise or continuously. Lighting control example 1 and lighting control example 2 are different.
  • the control unit 14 periodically turns on the first light source 31A, and decreases the luminance stepwise or continuously during one lighting period. In this way, the blinking of the attenuating light is visually recognized by the user.
  • This lighting control example 4 is used in combination with one or more of the lighting control examples 1 to 3 described above.
  • the controller 14 changes the lighting control example 1, the lighting control example 2, or the lighting control example 3 to the lighting control example 4 shown in FIG. Switch. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
  • the lighting control example 3 is executed. After performing the lighting control example 3 for a while, the control unit 14 reduces the output of the heating source and switches from the lighting control example 3 to the lighting control example 4. When switched to the lighting control example 4, the user visually recognizes light that blinks while attenuating. In this way, the light that attenuates and blinks from the transmission unit 32 can be used as a warning display to the user indicating that the output of the heating source is being suppressed.
  • Lighting control example 5 In the lighting control example 5, a light source randomly selected from a plurality of light sources is sequentially turned on and off.
  • the control unit 14 randomly selects one light source from among the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D using a random number or the like, turns on the light source, and turns off the other light sources. Is repeated.
  • the control unit 14 turns on the light source so that the lighting periods do not overlap.
  • the lighting period may be a fixed value or a value that is randomly changed.
  • This lighting control example 5 is used in combination with one or more of the above-described lighting control examples 1 to 4.
  • the control unit 14 changes the lighting control example 1, the lighting control example 2, or the lighting control example 3 to the lighting control example 5 illustrated in FIG. 6 from the lighting control example 1, the lighting control example 2, or the lighting control example 3 according to the operating state of the heating source or the state of the heating cooker 1. Switch. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
  • the lighting control example 3 is executed. It is assumed that after the lighting control example 3 has been executed for a while, the infrared sensor 11 or the contact-type temperature sensor 12 detects that the temperature of the cooking container 300 has exceeded a threshold value indicating an excessive rise. In this case, the control unit 14 switches from the lighting control example 3 to the lighting control example 5. Switching to the lighting control example 5 allows the user to visually recognize the blinking of random light. In this manner, the light emitted separately from the transmission unit 32 can be used as a warning display to the user indicating that the cooking container 300 is in an abnormal state in which the cooking container 300 is excessively heated.
  • the heating cooker 1 of the present embodiment is provided below the top plate 3 and controlled independently of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D.
  • the light emitting unit 30 having Further, on the outside of the heating port 20 of the top plate 3, there is provided a transmission portion 32 through which light emitted from the first light source 31A to the fourth light source 31D is transmitted. Then, when the heating coil 4 is heating the cooking container 300, the position of the light source that emits light among the first light source 31A to the fourth light source 31D is continuously changed. Specifically, as illustrated in FIGS.
  • the first light source 31A to the fourth light source 31D arranged in a straight line blink sequentially in this order, and the blinking loops. And so on.
  • the first light source 31A to the fourth light source 31D By the operation of the first light source 31A to the fourth light source 31D, light in one direction flowing in a direction parallel to the surface of the top plate 3 is emitted from the transmission part 32. This allows the user to visually recognize the flow of light. Therefore, even when the user has a disability in color vision, it is easy to recognize that the cooking device 1 is operating. By making it easier to recognize that the cooking device 1 is operating, the user can suppress forgetting to turn off the power supply of the cooking device 1 and turning on power to unnecessary heating sources.
  • the number of blinking ones of the first light source 31A to the fourth light source 31D differs according to the magnitude of the output of the heating coil 4 that is the heating source.
  • the number of light sources that emit light increases.
  • the user visually recognizes that the position of the blinking light has changed according to the output of the heating coil 4. Therefore, the user can easily visually recognize that the output of the heating source has changed. Therefore, the user can easily adjust the output of the heating source, and can have a sense of security when adjusting the output.
  • since the user can easily adjust the output of the heating source it is possible to heat the cooking container 300 with an output suitable for cooking, thereby improving the finish of cooking and reducing power consumption. be able to.
  • FIG. 8 is a schematic plan view of the top plate 3 according to the first modification of the first embodiment.
  • the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D that constitute the transmission part 32 are the same as a part of a shape similar to the heating port 20. Shape.
  • the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D have an arc shape. As the distance from the heating port 20 increases, the length of the circular arc increases, and the surface area also increases. In the example of FIG.
  • the length of the arc is longer in the order of the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D, and the outermost fourth transmission part 32A.
  • the arc length of the portion 32D is the longest.
  • the range of the transmission section 32 from which light is emitted may be increased toward the outside of the heating port 20.
  • the heating power 1 is set in the heating coil 4
  • light is emitted from the first transmitting part 32A and the second transmitting part 32B.
  • the heating power greater than the heating power 1 is set in the heating coil 4
  • light is emitted from the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D.
  • the heating power increases, the area from which light is emitted is increased, so that the user can easily recognize the magnitude of the heating power.
  • the shapes of the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D are not limited to arc shapes, but may be rectangular, for example.
  • FIG. 9 is a schematic plan view of the top plate 3 according to the second modification of the first embodiment.
  • the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D that configure the transmission part 32 are more distant from the heating port 20.
  • the length in the radial direction of the heating port 20 is long.
  • the length of the side along the radial direction of the heating port 20 becomes longer in the order of the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D.
  • the length of the side of the outermost fourth transmission portion 32D is the longest. With this configuration, it is possible to give the user an impression that the light emitted from the transmission section 32 spreads around the heating port 20.
  • the range of the transmission section 32 from which light is emitted may be increased toward the outside of the heating port 20.
  • the heating power 1 is set in the heating coil 4
  • light is emitted from the first transmitting part 32A and the second transmitting part 32B.
  • the heating power greater than the heating power 1 is set in the heating coil 4
  • light is emitted from the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D.
  • the heating power increases, the area from which light is emitted is increased, so that the user can easily recognize the magnitude of the heating power.
  • FIG. 10 is a diagram illustrating a first modification of the first light source lighting control according to the first embodiment.
  • the first modification is the same as the first lighting control example of FIG. 4 in that any two or more of the first light source 31A to the fourth light source 31D are sequentially turned on and off so that the lighting periods do not overlap.
  • Modification Example 1 differs from Lighting Control Example 1 in FIG. 4 in that there is an OFF period in which none of the light sources is turned on after a certain light source is turned on until the next light source is turned on. In FIG. 10, the OFF period is indicated by a symbol e.
  • FIG. 11 is a diagram illustrating a second modification of the first light source lighting control according to the first embodiment.
  • Modification 2 is a method in which a plurality of light sources repeatedly blink at a specific cycle, and a length of a period from when a first light source of the plurality of light sources is turned on to when a second light source is turned on, and This is one example in which the length of the period from when the light source is turned on to when the third light source is turned on is different.
  • the modification 2 is the same as the lighting control example 1 of FIG. 4 in that any two or more of the first to fourth light sources 31A to 31D are sequentially turned on and off so that the lighting periods do not overlap.
  • the length of the period in which each light source is turned on is made different depending on the light source.
  • a light source located farther from the heating port 20 has a longer lighting time per turn, and the lighting time in the order of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D. Is getting longer. That is, the relationship is that period a ⁇ period b ⁇ period c ⁇ period d.
  • the period a is, for example, about 1 second
  • the period d is, for example, about 3 seconds.
  • an OFF period in which none of the light sources is turned on may be provided between the time when a certain light source is turned on and the time when the next light source is turned on. By doing so, it is possible to obtain the same operation and effect as the first modification.
  • the light source may blink sequentially without providing the OFF period.
  • FIG. 12 is a diagram for explaining a third modification of the first light source lighting control according to the first embodiment.
  • a plurality of light sources repeatedly blink at a unique cycle.
  • This modification 3 is the same as the lighting control example 1 of FIG. 4 in that blinking is repeated when focusing on each of the first light source 31A to the fourth light source 31D so that the lighting periods do not overlap.
  • the lighting period per light source located farthest from the heating port 20 is longer than the lighting period of the other light sources.
  • FIG. 12 illustrates an example in which three of the first light source 31A, the second light source 31B, and the third light source 31C blink sequentially, but the period c in which the third light source 31C located farthest from the heating port 20 is turned on. Is longer than the periods a and b.
  • the thermal power is smaller than that illustrated in FIG. 12, the first light source 31A and the second light source 31B blink sequentially so that the period a ⁇ the period b.
  • the thermal power is larger than that illustrated in FIG.
  • the lighting period of the outermost light source among the light sources participating in the blinking loop longer than the lighting periods of the other light sources, the outer edge of the light emitted from the transmission unit 32 is used. People can easily recognize. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
  • an OFF period in which none of the light sources is turned on may be provided between the time when a certain light source is turned on and the time when the next light source is turned on. By doing so, it is possible to obtain the same operation and effect as the first modification.
  • the light sources may blink sequentially without providing an OFF period.
  • FIG. 13 is a diagram illustrating a fourth modification of the first example of the lighting control of the light source according to the first embodiment.
  • Modification 4 is a method in which a plurality of light sources repeatedly blink at a specific cycle, and a length of a period from when a first light source of the plurality of light sources is turned on to when a second light source is turned on, and This is one example in which the length of the period from when the light source is turned on to when the third light source is turned on is different.
  • the modification 4 is the same as the lighting control example 1 of FIG. 4 in that two or more of the first light source 31A to the fourth light source 31D blink.
  • the timing at which the blinking light source starts lighting is shifted, but the lighting periods of the light sources overlap, and the timing at which the light source turns off is the same.
  • the first light source 31A starts lighting, and thereafter, the second light source 31B starts lighting while the first light source 31A remains lit.
  • the third light source 31C starts lighting while the first light source 31A and the second light source 31B remain lit.
  • the fourth light source 31D starts lighting while the first light source 31A, the second light source 31B, and the third light source 31C remain lit. Thereafter, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are simultaneously turned off.
  • each light source it is the same as the lighting control example 1 in that it blinks repeatedly.
  • the user can amplify the light in one direction. And the user can easily recognize the flow of light. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
  • FIG. 13 shows an example in which the timing at which the blinking light source starts lighting is shifted.
  • all the lighting start timings of the blinking light source may be synchronized, and the timing of turning off the light source may be sequentially shifted.
  • the first light source 31A to the third light source 31C are turned on at the same time, and are turned off after a certain time in the order of the first light source 31A, the second light source 31B, and the third light source 31C. Even in this case, from the state in which the plurality of light sources are turned on at the same time, the user can visually recognize the light flow to be attenuated in one direction, and the user can easily recognize the light flow.
  • the timing at which the blinking light source starts lighting and the timing at which the blinking light source turns off may be shifted.
  • the first light source 31A, the second light source 31B, and the third light source 31C are sequentially turned on after a certain time, and a period is provided in which these three light sources are simultaneously turned on. Thereafter, the first light source 31A, the second light source 31B, and the third light source 31C are turned off after a certain time. In this way, the light in one direction flows is amplified, and thereafter, the light is visually recognized by the user as attenuating in the same direction, and the user can easily recognize the light flow.
  • Embodiment 2 FIG.
  • the shape and arrangement of the transmission unit 32 and the arrangement of the light source will be described. Since the configuration other than the shape and arrangement of the transmissive portion 32 and the arrangement of the light sources are the same as those of the first embodiment, the present embodiment will be described focusing on the differences from the first embodiment.
  • FIG. 14 is a schematic plan view of the top plate 3 according to the second embodiment.
  • the transmission section 32 of the present embodiment is the same as that of the first embodiment in that the transmission section 32 is provided outside the heating port 20 for each heating port 20.
  • the overall shape of the transmission section 32 of the present embodiment is different from that of the first embodiment in that the transmission section 32 extends from the heating port 20 in a direction approaching the operation display section 6.
  • the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D included in the transmitting portion 32 of the present embodiment extend in the order away from the operation display unit 6 in this order. They are arranged on a straight line.
  • the overall shape of the transmission unit 32 is an isosceles triangle, and the apex angle is closer to the operation display unit 6 than the base angle.
  • a triangle is formed by the triangular first transmitting portion 32A and the trapezoidal second transmitting portion 32B, third transmitting portion 32C, and fourth transmitting portion 32D.
  • the left and right widths of the fourth transmission part 32D located farthest from the operation display part 6 are the longest, and the left and right widths of the first transmission part 32A located closest to the operation display part 6 are the shortest.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D arranged below the top plate 3 are indicated by broken lines.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have the same basic configuration as that described in the first embodiment.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are provided at positions where emitted light passes through the transmission unit 32.
  • the plurality of light sources are arranged at positions overlapping with the transmission part 32 in plan view.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are arranged on a straight line along the direction away from the operation display unit 6 in this order.
  • the same number of light sources (four in this embodiment) as the plurality of transmissive portions constituting the transmissive portion 32 are provided, and the plurality of light sources overlap the corresponding one of the plurality of transmissive portions in plan view. An example in which they are arranged at positions is shown. However, a plurality of light sources may be arranged for one transmission part.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are controlled to be turned on as described in the lighting control example of the first embodiment.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are turned on, light from the light source is transmitted through the transmission unit 32, and the transmitted light is visually recognized by the user.
  • light from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D is provided to a user who handles the cooking device 1 at a position facing the operation display unit 6. It becomes easier to see. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
  • first light source 31A to fourth light source 31D can be easily arranged at a position distant from the heating source that becomes hot. Therefore, deterioration of the first light source 31A to the fourth light source 31D due to heat is suppressed, and the durability of the first light source 31A to the fourth light source 31D can be improved.
  • the heat-resistant structure provided for the first light source 31A to the fourth light source 31D can be simplified, and the material cost of the cooking device 1 can be reduced. Can be.
  • Embodiment 3 FIG.
  • the shape and arrangement of the transmission unit 32 and the arrangement of the light source will be described. Since the configuration other than the shape and arrangement of the transmissive portion 32 and the arrangement of the light sources are the same as those of the first embodiment, the present embodiment will be described focusing on the differences from the first embodiment.
  • FIG. 15 is a schematic plan view of the top plate 3 according to the third embodiment.
  • the transmission section 32 of the present embodiment is the same as that of the first embodiment in that the transmission section 32 is provided outside the heating port 20 for each heating port 20.
  • the overall shape of the transmission section 32 of the present embodiment is different from that of the first embodiment in that it extends along the width direction of the top plate 3.
  • the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D included in the transmitting part 32 of the present embodiment are straight lines along the width direction of the top plate 3 in this order. At the top, from left to right.
  • the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D have a rectangular planar shape, and form the entire rectangular shape of the transmitting portion 32.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D arranged below the top plate 3 are indicated by broken lines.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have the same basic configuration as that described in the first embodiment.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are provided at positions where emitted light passes through the transmission unit 32.
  • the plurality of light sources are arranged at positions overlapping with the transmission part 32 in plan view.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are arranged in this order on a straight line along the width direction of the top plate 3 from left to right.
  • the same number (four in this embodiment) of light sources as the plurality of transmissive portions constituting the transmissive portion 32 are provided, and the plurality of light sources overlap in plan view with the corresponding one of the plurality of transmissive portions.
  • An example in which they are arranged at positions is shown.
  • a plurality of light sources may be arranged for one transmission part.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are controlled to be turned on as described in the lighting control example of the first embodiment.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are turned on, light from the light source is transmitted through the transmission unit 32, and the transmitted light is visually recognized by the user.
  • Embodiment 4 FIG. In the present embodiment, an example of the attribute of light emitted from the transmission unit 32 will be described. In the present embodiment, a description will be given focusing on differences from the first embodiment.
  • FIG. 16 is a diagram illustrating a transmission unit and a plurality of light sources according to the fourth embodiment.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D arranged below the transmission unit 32 are indicated by broken lines.
  • the first light source 31A to the fourth light source 31D of the present embodiment emit light having a longer wavelength in this order. By making the wavelengths of the light emitted from the plurality of light sources different, the hue of the light is made different, and the light having a different hue emitted from the transmission section 32 is visually recognized by the user.
  • the first light source 31A emits yellow light
  • the second light source 31B emits orange light
  • the third light source 31C emits red
  • the fourth light source 31D emits red light.
  • light sources that emit two types of light having different wavelengths may be arranged alternately.
  • the output of the heating source when the output of the heating source is small, light having a relatively short wavelength is emitted from the first light source 31A. Then, as the output of the heating source increases, light having a longer wavelength is emitted in the order of the second light source 31B, the third light source 31C, and the fourth light source 31D.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D may include a plurality of light emitting elements having different wavelengths of emitted light.
  • the first light source 31A which is one light source, includes a plurality of light emitting elements having different emission colors. Then, light is simultaneously emitted from one or more of the plurality of light emitting elements provided in the first light source 31A. Then, the color (RGB) of the light emitted from the transmission section 32 and visually recognized by the user can be changed depending on the combination of the light emitting elements that emit the light. For example, blue light is emitted from the first light source 31A, green light is emitted from the second light source 31B, orange light is emitted from the third light source 31C, and red light is emitted from the fourth light source 31D.
  • the colors of the first transmitting portion 32A to the fourth transmitting portion 32D may be different.
  • the first transmitting part 32A to the fourth transmitting part 32D are colored transparent members.
  • the first light source 31A to the fourth light source 31D emit light of a single color, for example, white light
  • the emitted light is refracted in the process of transmitting through the first transmission portion 32A to the fourth transmission portion 32D, and the first transmission light is transmitted.
  • the light is recognized by the user as light of a color corresponding to the colors of the portions 32A to 32D.
  • the first The light transmittances of the transmission part 32A to the fourth transmission part 32D may be different.
  • the amount of light transmission is increased in the order of the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D.
  • printing is performed on the front surface or the back surface of the transmission portion 32 using a paint made of a glass-based inorganic material, a thermosetting resin, an ultraviolet-curable resin, or the like.
  • the transmittance of light can be changed by changing the density of the coating for printing.
  • the paint used for printing is not limited to the above, and a wide range of materials can be used as long as they have relatively high rigidity and low brittleness and do not contain harmful substances.
  • light of different hues can be visually recognized by the user. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
  • Embodiment 5 FIG. In this embodiment, an example in which the luminance of emitted light is different for each of a plurality of light sources will be described. In the present embodiment, a description will be given focusing on differences from the first embodiment.
  • FIG. 17 is a timing chart illustrating an example of lighting control of the light source according to the fifth embodiment.
  • the vertical axis schematically indicates the magnitude of the luminance of light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have higher luminance of emitted light in this order.
  • the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have higher luminance of emitted light in this order.
  • Embodiment 6 FIG.
  • the present embodiment is different from the first embodiment in that the user can select the color of the light emitted from the transmission unit 32.
  • the present embodiment will be described with a focus on differences from the first embodiment.
  • FIG. 18 is a schematic plan view of the top plate 3 according to the sixth embodiment.
  • the heating cooker 1 of the present embodiment includes a setting unit 33 that sets the color of light emitted from the transmission unit 32.
  • the setting unit 33 is an interface that receives an input of a color setting, such as a touch panel or a press-type button.
  • FIG. 18 illustrates an example in which the setting unit 33 is provided on the upper surface of the cooking device 1, but the position of the setting unit 33 is not limited to the illustrated one.
  • the emitted light appears only to dark gray for a user with a red-green color impairment. . Then, the information such as the heating power transmitted using the light emitted from the transmission unit 32 becomes difficult for the user to recognize.
  • the user uses the setting unit 33 to set the color of the light emitted from the transmission unit 32.
  • the control unit 14 changes the color of the light emitted from the plurality of light sources based on the setting in the setting unit 33.
  • a color having a white component is preferably provided as a color that can be set by the setting unit 33.
  • Each light source includes one light-emitting element that can change the emission color, or includes a plurality of light-emitting elements that emit light of different colors. In this case, the color of the light emitted from one light source can be changed by individually turning on or off the plurality of light emitting elements that emit light of different colors by the control circuit of the light emitting unit 30.
  • the transmission to the user is made.
  • Light emitted from the part 32 is difficult to see.
  • the user uses the setting unit 33 to set the color of the light emitted from the transmission unit 32.
  • the control unit 14 changes the color of the light emitted from the plurality of light sources based on the setting in the setting unit 33.
  • the colors that can be set by the setting unit 33 it is preferable to provide three primary colors of red, blue, and green, or colors similar thereto.
  • a user using the cooking device 1 can select a color of light emitted from the transmission unit 32. For this reason, by setting the color suitable for the user's own color vision using the setting unit 33, the user can easily recognize the light emitted from the transmission unit 32.
  • a plurality of light sources provided in the light emitting unit 30 may be arranged so as to express characters or symbols.
  • the plurality of light sources thus arranged are treated as one light source in a group of characters or symbols, and the lighting control as described in the above embodiment is performed. By doing so, it is possible for the user to recognize that the light visually recognized as a character or a symbol is flowing in one direction.
  • a plurality of light sources are arranged in a ring, and a plurality of sets of light sources arranged in the ring are provided.
  • the plurality of light sources arranged in a ring are treated as one light source and lighting control is performed, so that the user can be recognized as if the ring-shaped light is flowing in one direction.
  • the plurality of light sources provided in the light emitting unit 30 may be arranged in a matrix. Then, the plurality of light sources arranged in a matrix are treated as one light source in a group representing characters or symbols, and the lighting control as described in the above embodiment is performed. By doing so, it is possible for the user to recognize that the light visually recognized as a character or a symbol is flowing in one direction.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

This heat-cooking device is provided with: a top plate on which a cooking container is placed; a heat source provided beneath the top plate; a heating port which is provided to the top plate so as to indicate the position where the cooking container is to be placed; a plurality of light sources which are provided beneath the top plate and which are independently controlled; a transmissive part that is provided to the outer side of the heating port in the top plate and that allows light emitted from the plurality of light sources to transmit therethrough, wherein, among the plurality of light sources, one or more of the light sources are configured to change continuously from one to another to emit light in such a manner that, when the heat source is in operation, light propagating only in one direction along a direction parallel to the surface of the top plate is allowed to be emitted from the transmissive part.

Description

加熱調理器Cooker
　本発明は、加熱源の動作状態を光によって示す加熱調理器に関する。 << The present invention relates to a heating cooker which shows an operation state of a heating source by light.
　加熱コイルまたは抵抗加熱ヒータを加熱源として、トッププレートの上に載置される調理容器を加熱する加熱調理器が知られている。例えば、誘導加熱方式の加熱調理器は、加熱調理器内に配置された加熱コイル等の金属体に電流を流すことで発生する磁束により、加熱コイルの上方にトッププレートを介して載置された調理容器本体に渦電流を発生させる。そして、この渦電流と調理容器本体の抵抗とにより発生するジュール熱で、調理容器を発熱させるものである。 加熱 A heating cooker that heats a cooking vessel placed on a top plate using a heating coil or a resistance heater as a heating source is known. For example, an induction heating type heating cooker was placed via a top plate above a heating coil by a magnetic flux generated by applying an electric current to a metal body such as a heating coil disposed in the heating cooker. An eddy current is generated in the cooking vessel body. Then, the cooking container is heated by Joule heat generated by the eddy current and the resistance of the cooking container body.
　近年、高齢者が使用する加熱調理器として、加熱コイルや抵抗加熱ヒータを加熱源とする加熱調理器が選択される機会が増えている。このような加熱調理器は、調理時に炎を使わないことで、炎による火傷、着衣への着火、延焼の恐れが低減されることが、使用者に好まれる理由の一つである。 In recent years, there has been an increasing number of occasions in which cooking devices using a heating coil or a resistance heater as a heating source are selected as cooking devices used by the elderly. One of the reasons why such a heating cooker is preferred by users is that the use of a flame during cooking reduces the risk of burns due to the flame, ignition of clothes, and spread of fire.
　ここで、上記のような加熱調理器は、炎で調理容器を加熱する加熱調理器とは異なり、調理中に炎がでないため、加熱源が動作しているか否か及び加熱源の火力を使用者は直接的に視認することができない。そのため、加熱調理器の動作状態を使用者が把握しやすくするために、色々な工夫が提案されている。 Here, the heating cooker as described above is different from a heating cooker that heats a cooking container with a flame, because there is no flame during cooking, so that whether or not the heating source is operating and the heating power of the heating source are used. The person cannot see directly. Therefore, various ideas have been proposed to make it easier for the user to grasp the operating state of the cooking device.
　従来の加熱調理器として、加熱口の外形リングラインの外側に放射状に複数の表示部を設けたものがある（例えば、特許文献１参照）。この加熱調理器は、誘導加熱コイルの加熱出力に応じて、表示部の発光面積を異ならせている。 As a conventional heating cooker, there is one in which a plurality of display portions are radially provided outside the outer ring line of the heating port (for example, see Patent Document 1). In this heating cooker, the light emitting area of the display unit is changed according to the heating output of the induction heating coil.
　また、印刷でトッププレートに設けた膜に、多数のスリットを形成し、トッププレートの下に設けられた発光手段から出射された光がスリットを透過するように構成した加熱調理器が提案されている（例えば、特許文献２参照）。特許文献２には、スリットを透過した光が鍋の側面で反射することで、鍋の側面に炎のような模様を描くと記載されている。 Further, a heating cooker has been proposed in which a large number of slits are formed in a film provided on a top plate by printing, and light emitted from light emitting means provided under the top plate is transmitted through the slits. (For example, see Patent Document 2). Patent Literature 2 describes that light transmitted through a slit is reflected on a side surface of the pan, thereby drawing a flame-like pattern on the side surface of the pan.
特開２００５－１２３０５４号公報JP 2005-123054 A 特開２００３－２５７６０１号公報JP-A-2003-257601
　特許文献１の技術では、熱源の出力に対応した一定の発光面積にて発光部が発光する。この構成では、熱源の出力が変化した瞬間においては、発光部の発光面積が変化するため、熱源の出力の変化を使用者に認識させうる。しかし、熱源の出力に変化がない状態では、発光部の発光面積も変化しない。また、発光部の発光面積の比較対象もない。このため、熱源の出力に変化がない状態では、熱源の出力の有無及び出力の程度を使用者に認識させることが難しい。 技術 In the technique of Patent Document 1, the light emitting section emits light with a constant light emitting area corresponding to the output of the heat source. In this configuration, the light emitting area of the light emitting unit changes at the moment when the output of the heat source changes, so that the user can recognize the change in the output of the heat source. However, when there is no change in the output of the heat source, the light emitting area of the light emitting unit does not change. Further, there is no comparison object of the light emitting area of the light emitting unit. For this reason, it is difficult for the user to recognize the presence or absence of the output of the heat source and the degree of the output in a state where there is no change in the output of the heat source.
　特許文献２の技術は、鍋の側面に炎状の模様が描かれることにより、鍋が炎の中に載置されたようなイメージ及びほのぼのとした感じを使用者に与えることを目的としている。しかし、鍋の表面の色又は鍋の表面の汚れによっては、使用者に炎状の模様を認識させることが困難な場合があった。炎状の模様の認識のしづらさは、高齢者など視覚に障害のある人に顕著に表れる。 技術 The technique of Patent Document 2 aims to give a user an image as if the pan is placed in a flame and a warm feeling by drawing a flame-like pattern on the side of the pan. However, depending on the color of the surface of the pot or the dirt on the surface of the pot, it was sometimes difficult for the user to recognize the flame-like pattern. Difficulty in recognizing a flaming pattern is noticeable in visually impaired people such as the elderly.
　本発明は、上記のような課題を背景としてなされたものであり、視覚による認識力に課題を抱える使用者にとっても、加熱源が動作していることを認識しやすい加熱調理器を提供するものである。 The present invention has been made in view of the above problems, and provides a heating cooker that is easy to recognize that a heating source is operating even for a user having a problem in visual recognition. It is.
　本発明に係る加熱調理器は、調理容器が載置されるトッププレートと、前記トッププレートの下に設けられた加熱源と、前記トッププレートに設けられ、前記調理容器が載置される位置を示す加熱口と、前記トッププレートの下に設けられ、独立して制御される複数の光源と、前記トッププレートの前記加熱口の外側に設けられ、前記複数の光源から出射される光が透過する透過部とを備え、前記加熱源が動作しているときに、前記トッププレートの表面と平行な方向に沿った一方向の流れの光が前記透過部から出射されるように、前記複数の光源のうち光を出射する一以上の光源が連続的に変化するように構成されているものである。 The heating cooker according to the present invention includes a top plate on which a cooking container is placed, a heating source provided below the top plate, and a position on the top plate where the cooking container is placed. The heating port shown, provided below the top plate, a plurality of light sources independently controlled, and provided outside the heating port of the top plate, the light emitted from the plurality of light sources is transmitted. A plurality of light sources, wherein when the heating source is operating, the light in one direction along a direction parallel to the surface of the top plate is emitted from the transmission unit. Among them, one or more light sources that emit light continuously change.
　本発明によれば、加熱源が動作しているときに、トッププレートの表面と平行な方向に沿った一方向の流れの光が透過部から出射される。光の流れが使用者に視認されるので、使用者は加熱源が動作していることを認識しやすい。 According to the present invention, when the heating source is operating, the light in one direction flowing along the direction parallel to the surface of the top plate is emitted from the transmission part. Since the light flow is visually recognized by the user, the user can easily recognize that the heating source is operating.
実施の形態１に係る加熱調理器１の概略斜視図である。1 is a schematic perspective view of a heating cooker 1 according to Embodiment 1. FIG. 実施の形態１に係る加熱調理器１の主要部の概略構成図である。1 is a schematic configuration diagram of a main part of a heating cooker 1 according to Embodiment 1. FIG. 実施の形態１に係るトッププレート３の概略平面図である。FIG. 2 is a schematic plan view of a top plate 3 according to Embodiment 1. 実施の形態１に係る光源の点灯制御例を説明するタイミングチャートである。5 is a timing chart illustrating an example of lighting control of the light source according to the first embodiment. 実施の形態１に係る光源の他の点灯制御例を説明するタイミングチャートである。5 is a timing chart illustrating another example of lighting control of the light source according to the first embodiment. 実施の形態１に係る光源の他の点灯制御例を説明するタイミングチャートである。5 is a timing chart illustrating another example of lighting control of the light source according to the first embodiment. 実施の形態１に係る光源の他の点灯制御例を説明するタイミングチャートである。5 is a timing chart illustrating another example of lighting control of the light source according to the first embodiment. 実施の形態１の変形例１に係るトッププレート３の概略平面図である。FIG. 3 is a schematic plan view of a top plate 3 according to a first modification of the first embodiment. 実施の形態１の変形例２に係るトッププレート３の概略平面図である。FIG. 5 is a schematic plan view of a top plate 3 according to a second modification of the first embodiment. 実施の形態１に係る光源の点灯制御例１の変形例１を説明する図である。FIG. 7 is a diagram illustrating a first modification of the first example of the light source lighting control according to the first embodiment. 実施の形態１に係る光源の点灯制御例１の変形例２を説明する図である。FIG. 6 is a diagram illustrating a second modification of the first example of the lighting control of the light source according to the first embodiment. 実施の形態１に係る光源の点灯制御例１の変形例３を説明する図である。FIG. 9 is a diagram illustrating a third modification of the first example of the lighting control of the light source according to the first embodiment. 実施の形態１に係る光源の点灯制御例１の変形例４を説明する図である。FIG. 9 is a diagram illustrating a fourth modification of the first example of the lighting control of the light source according to the first embodiment. 実施の形態２に係るトッププレート３の概略平面図である。FIG. 10 is a schematic plan view of a top plate 3 according to Embodiment 2. 実施の形態３に係るトッププレート３の概略平面図である。FIG. 13 is a schematic plan view of a top plate 3 according to Embodiment 3. 実施の形態４に係る透過部及び複数の光源を説明する図である。FIG. 14 is a diagram illustrating a transmission unit and a plurality of light sources according to a fourth embodiment. 実施の形態５に係る光源の点灯制御例を説明するタイミングチャートである。15 is a timing chart illustrating an example of lighting control of a light source according to a fifth embodiment. 実施の形態６に係るトッププレート３の概略平面図である。15 is a schematic plan view of a top plate 3 according to Embodiment 6. FIG.
　以下、本発明に係る加熱調理器を、家庭用ＩＨ（Induction Heating）式加熱調理器に適用した場合の実施の形態を、図面を参照して説明する。本発明は、以下の実施の形態に限定されるものではなく、本発明の主旨を逸脱しない範囲で種々に変形することが可能である。また、本発明は、以下の各実施の形態に示す構成のうち、組合せ可能な構成のあらゆる組合せを含むものである。また、図面に示す加熱調理器は、本発明の加熱調理器が適用される機器の一例を示すものであり、図面に示された加熱調理器によって本発明の適用機器が限定されるものではない。また、以下の説明において、理解を容易にするために方向を表す用語（例えば「上」、「下」、「右」、「左」、「前」、「後」など）を適宜用いるが、これらは説明のためのものであって、本発明を限定するものではない。また、各図において、同一の符号を付したものは、同一の又はこれに相当するものであり、これは明細書の全文において共通している。なお、各図面では、各構成部材の相対的な寸法関係又は形状等が実際のものとは異なる場合がある。 Hereinafter, an embodiment in which the heating cooker according to the present invention is applied to a household IH (Induction Heating) heating cooker will be described with reference to the drawings. The present invention is not limited to the following embodiments, and can be variously modified without departing from the gist of the present invention. Further, the present invention includes all combinations of configurations that can be combined among the configurations described in the following embodiments. The cooking device shown in the drawings is an example of a device to which the cooking device of the present invention is applied, and the device to which the present invention is not limited by the cooking device shown in the drawings. . In the following description, terms indicating directions (for example, “up,” “down,” “right,” “left,” “front,” “back,” and the like) are used as appropriate to facilitate understanding, These are for explanation and do not limit the present invention. In each drawing, the same reference numerals denote the same or corresponding components, which are common throughout the entire specification. In addition, in each drawing, the relative dimensional relationship or shape of each component may be different from the actual one.
実施の形態１．
（加熱調理器の構成）
　図１は、実施の形態１に係る加熱調理器１の概略斜視図である。図１に示すように、加熱調理器１は、本体２と、本体２の上に配置されたトッププレート３とを備えている。本体２の前面には、前面操作部５が設けられている。前面操作部５は、加熱調理器１の電源をＯＮ又はＯＦＦするための電源スイッチ及び火力を調節するための複数の操作ダイヤルなどを含んでいる。 Embodiment 1 FIG.
(Configuration of heating cooker)
FIG. 1 is a schematic perspective view of a heating cooker 1 according to the first embodiment. As shown in FIG. 1, the cooking device 1 includes a main body 2 and a top plate 3 arranged on the main body 2. On the front surface of the main body 2, a front operation unit 5 is provided. The front operation unit 5 includes a power switch for turning on or off the power of the cooking device 1, a plurality of operation dials for adjusting the heating power, and the like.
　トッププレート３は、例えば、耐熱性のガラス板と、ガラス板の周囲に取り付けられた金属の枠体とにより構成される。トッププレート３には、加熱領域である加熱口２０が設けられている。本実施の形態では、３つの加熱口２０が設けられている。加熱口２０に対応するトッププレート３の上面又は下面には、鍋又はフライパンなどの調理容器が載置される領域を示す表示が設けられている。加熱口２０の下側の本体２の内部には、加熱源である加熱コイル４が設けられている。加熱口２０は、加熱源である加熱コイル４の外形と同じ形状、あるいは、加熱コイル４の外形よりも若干大きい形状に形成される。本実施の形態では、加熱口２０の表示は平面視で円形状に形成されている。 The top plate 3 is composed of, for example, a heat-resistant glass plate and a metal frame attached around the glass plate. The top plate 3 is provided with a heating port 20 as a heating area. In the present embodiment, three heating ports 20 are provided. On the upper surface or the lower surface of the top plate 3 corresponding to the heating port 20, a display indicating an area where a cooking container such as a pan or a frying pan is placed is provided. Inside the main body 2 below the heating port 20, a heating coil 4 as a heating source is provided. The heating port 20 is formed in the same shape as the outer shape of the heating coil 4 as a heating source, or in a shape slightly larger than the outer shape of the heating coil 4. In the present embodiment, the display of the heating port 20 is formed in a circular shape in plan view.
　それぞれの加熱口２０の外側には、加熱口２０の下に配置される加熱源の駆動状態を表示する透過部３２が設けられている。透過部３２は、トッププレート３の下に配置される発光部３０（図２参照）から出射される光が透過するように構成されている。本実施の形態の透過部３２は、ガラス板で構成されたトッププレート３の一部であって、塗装が設けられていない、あるいは光が透過する程度に塗装が設けられた領域である。トッププレート３を構成する不透明なガラス板をくりぬき、このくりぬかれた位置にはめ込まれた透明なガラス板によって、透過部３２を構成することもできる。このような構成のほか、光が透過する材料及び構造を、透過部３２として用いることができる。加熱口２０ごとに設けられた透過部３２の全体形状は、加熱口２０の外周から離れる方向に向かって延びている。 透過 A transmission unit 32 is provided outside each heating port 20 to display a driving state of a heating source arranged below the heating port 20. The transmission section 32 is configured to transmit light emitted from the light emitting section 30 (see FIG. 2) disposed below the top plate 3. The transmissive part 32 of the present embodiment is a part of the top plate 3 made of a glass plate, and is a region where no coating is provided or a coating is provided to the extent that light is transmitted. The opaque glass plate constituting the top plate 3 is cut out, and the transparent portion 32 can be formed by a transparent glass plate fitted in the cut-out position. In addition to such a configuration, a material and a structure through which light is transmitted can be used as the transmission unit 32. The overall shape of the transmission portion 32 provided for each heating port 20 extends in a direction away from the outer periphery of the heating port 20.
　本実施の形態の透過部３２は、それぞれ、複数の透過部を含んでいる。本実施の形態では、透過部３２を構成する複数の透過部を、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、及び第４透過部３２Ｄと称する。図１では、図面の煩雑化を防ぐため、紙面左端の加熱コイル４に対応して設けられた透過部３２に対してのみ、符号３２Ａ、３２Ｂ、３２Ｃ、３２Ｄを付している。なお、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄに共通する構成を説明する場合には、単に透過部３２と称する。 透過 The transmitting sections 32 of the present embodiment each include a plurality of transmitting sections. In the present embodiment, the plurality of transmission units forming the transmission unit 32 are referred to as a first transmission unit 32A, a second transmission unit 32B, a third transmission unit 32C, and a fourth transmission unit 32D. In FIG. 1, reference numerals 32A, 32B, 32C, and 32D are assigned only to the transmission sections 32 provided corresponding to the heating coil 4 at the left end of the drawing to prevent the drawing from becoming complicated. When a configuration common to the first transmission section 32A, the second transmission section 32B, the third transmission section 32C, and the fourth transmission section 32D is described, the configuration is simply referred to as the transmission section 32.
　第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄは、この順に、加熱口２０から外側へ離れるように順に配置されている。すなわち、第１透過部３２Ａが加熱口２０の最も近くに配置され、第２透過部３２Ｂは、第１透過部３２Ａよりも加熱口２０から離れた位置に配置されている。 The first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D are arranged in this order so as to be away from the heating port 20 to the outside. That is, the first transmission part 32A is disposed closest to the heating port 20, and the second transmission part 32B is disposed at a position farther from the heating port 20 than the first transmission part 32A.
　なお、図１で例示した加熱コイル４の数及び形状は、図示のものに限定されない。加熱コイル４の数、すなわち加熱源の数は、少なくとも一つであればよい。 The number and shape of the heating coils 4 illustrated in FIG. 1 are not limited to those illustrated. The number of the heating coils 4, that is, the number of the heating sources may be at least one.
　トッププレート３の手前側には、操作表示部６が設けられている。本実施の形態の操作表示部６は、複数の発光ダイオード（ＬＥＤ）又は液晶ディスプレイ（ＬＣＤ）等を有する表示画面と、静電容量式のタッチセンサとを備える。タッチセンサは、トッププレート３を介して使用者の操作入力を取得する。操作表示部６は、操作部と、操作部で設定された火力の大きさを表す火力表示部と、加熱調理器１の設定状態及び動作状態に関する情報が表示される情報表示部とを含む。操作表示部６の操作部は、各加熱口２０に対応した加熱コイル４の火力、温度、及び調理モードなどの設定に関する操作入力を受け付け、また、加熱開始及び加熱停止などの指示に関する操作入力を受け付ける。ここで、加熱調理器１の動作状態に関する情報とは、選択された調理モード、自動調理の進行状況、加熱口２０に載置された調理容器の温度及び警告情報等が含まれうる。 操作 An operation display unit 6 is provided on the front side of the top plate 3. The operation display unit 6 of the present embodiment includes a display screen having a plurality of light emitting diodes (LEDs) or a liquid crystal display (LCD), and a capacitive touch sensor. The touch sensor acquires a user's operation input via the top plate 3. The operation display unit 6 includes an operation unit, a heat power display unit that indicates the magnitude of the heat power set by the operation unit, and an information display unit that displays information on the setting state and the operation state of the heating cooker 1. The operation unit of the operation display unit 6 receives operation inputs related to settings such as the heating power, temperature, and cooking mode of the heating coil 4 corresponding to each heating port 20, and receives operation inputs related to instructions such as heating start and heating stop. Accept. Here, the information on the operation state of the heating cooker 1 may include the selected cooking mode, the progress of the automatic cooking, the temperature of the cooking container placed on the heating port 20, the warning information, and the like.
　図２は、実施の形態１に係る加熱調理器１の主要部の概略構成図である。図２は、トッププレート３に載置された調理容器３００とともに、加熱調理器１の概略断面と機能構成とを併せて示している。図２では、一つの加熱コイル４についてのみ図示しているが、他の加熱コイル４に関連する構造も同様の構造である。図２に示すように、加熱調理器１の本体２の内部であって、トッププレート３の下には、加熱コイル４と、加熱コイル４を支持するコイルベース９と、コイルベース９の下面に配置される複数のフェライトコア１０と、赤外線センサ１１とが設けられている。トッププレート３の下面には、接触式温度センサ１２が取り付けられている。また、温度検出部１３、制御部１４、インバータ１５、及び発光部３０が設けられている。 FIG. 2 is a schematic configuration diagram of a main part of the cooking device 1 according to the first embodiment. FIG. 2 shows a schematic cross section and a functional configuration of the cooking device 1 together with the cooking container 300 placed on the top plate 3. In FIG. 2, only one heating coil 4 is shown, but the structure related to the other heating coil 4 has the same structure. As shown in FIG. 2, inside the main body 2 of the cooking device 1, below the top plate 3, a heating coil 4, a coil base 9 supporting the heating coil 4, and a lower surface of the coil base 9. A plurality of ferrite cores 10 to be arranged and an infrared sensor 11 are provided. A contact temperature sensor 12 is attached to the lower surface of the top plate 3. Further, a temperature detecting unit 13, a control unit 14, an inverter 15, and a light emitting unit 30 are provided.
　加熱コイル４は、トッププレート３に設けられた加熱口２０の下方に配置される。加熱コイル４は、例えば銅線またはアルミ線などの導線を巻回して構成されたコイルであり、高周波電流が供給されることで高周波磁界を発生する。本実施の形態の加熱コイル４は、二重環状であるが、加熱コイル４の形状及び配置は図示のものに限定されない。なお、加熱コイル４に代えてあるいはこれに加えて、発熱体に電気を流すことにより熱を発生させる抵抗加熱式の電気ヒータを加熱源として設けてもよい。 The heating coil 4 is arranged below the heating port 20 provided in the top plate 3. The heating coil 4 is a coil formed by winding a conductive wire such as a copper wire or an aluminum wire, and generates a high-frequency magnetic field when a high-frequency current is supplied. The heating coil 4 of the present embodiment has a double annular shape, but the shape and arrangement of the heating coil 4 are not limited to those illustrated. Instead of or in addition to the heating coil 4, a resistance heating type electric heater that generates heat by passing electricity through the heating element may be provided as a heating source.
　コイルベース９は、合成樹脂などで構成され、加熱コイル４を収容し支持する。 The coil base 9 is made of a synthetic resin or the like, and accommodates and supports the heating coil 4.
　フェライトコア１０は、非導電性で高透磁率を有する強磁性材料からなる棒状の部材である。フェライトコア１０を設けることで、加熱コイル４の下方向への漏れ磁束が抑制され、加熱効率の向上及び調理容器３００の均熱化を図ることができる。フェライトコア１０の形状及び構成は本発明を限定しない。 The ferrite core 10 is a rod-shaped member made of a non-conductive, ferromagnetic material having high magnetic permeability. By providing the ferrite core 10, the magnetic flux leaking downward from the heating coil 4 is suppressed, so that the heating efficiency can be improved and the cooking container 300 can be uniformly heated. The shape and configuration of the ferrite core 10 do not limit the present invention.
　接触式温度センサ１２は、トッププレート３の下面、すなわち加熱コイル４と対向する面に接触して配置される。接触式温度センサ１２を、１つの加熱コイル４に対して複数設けてもよい。接触式温度センサ１２は、トッププレート３の上に載置される調理容器３００の温度を、トッププレート３を介して検出する。 The contact temperature sensor 12 is arranged in contact with the lower surface of the top plate 3, that is, the surface facing the heating coil 4. A plurality of contact temperature sensors 12 may be provided for one heating coil 4. The contact temperature sensor 12 detects the temperature of the cooking vessel 300 placed on the top plate 3 via the top plate 3.
　赤外線センサ１１は、加熱コイル４上のトッププレート３に載置された調理容器３００の底部から放射される赤外線エネルギーを検出する。赤外線センサ１１は、加熱コイル４の近傍を流れる冷却風が直接当たらないように、周囲をセンサケース１１０で覆われている。赤外線センサ１１の周囲の雰囲気温度が一様となるように、赤外線センサ１１はセンサケース１１０に空間距離を保ちながら保持されている。センサケース１１０は、コイルベース９にタッピングネジなどで止められる、あるいはコイルベース９と一部が一体で形成されるなどしている。このようなセンサケース１１０の保持構造により、トッププレート３と赤外線センサ１１との間の距離が一定に保たれている。 The infrared sensor 11 detects infrared energy radiated from the bottom of the cooking vessel 300 placed on the top plate 3 on the heating coil 4. The surroundings of the infrared sensor 11 are covered with a sensor case 110 so that cooling air flowing near the heating coil 4 does not directly hit. The infrared sensor 11 is held in the sensor case 110 while keeping a spatial distance so that the ambient temperature around the infrared sensor 11 becomes uniform. The sensor case 110 is fixed to the coil base 9 with a tapping screw or the like, or is formed integrally with the coil base 9. With such a holding structure of the sensor case 110, the distance between the top plate 3 and the infrared sensor 11 is kept constant.
　トッププレート３の加熱口２０には、透過窓１６が設けられている。透過窓１６は、トッププレート３を透過する調理容器３００の赤外線を赤外線センサ１１が検出できるようにするために設けられたものである。透過窓１６は、加熱口２０の範囲内であって、赤外線センサ１１の検出部と対向する位置に、設けられている。赤外線が透過しやすいように、透過窓１６には塗装を施さないことが望ましい。しかしながら、透過窓１６に塗装を施さない場合、トッププレート３の上から本体２の内部の加熱コイル４や配線などが視認されてしまうおそれがあり、意匠上望ましくない。このため、透過窓１６に塗装を施さない場合には、加熱コイル４を保持するコイルベース９及びセンサケース１１０に、トッププレート３の方向に向かって筒や板を設けるようにすればよい。このような目隠しのための筒や板を設けることで、加熱コイル４及び配線などを外部から見えにくくすることができる。また、透過窓１６の全面を塗装で覆うのではなく、透過窓１６に対してドット状又はストライプ状に塗装を施して塗装されていない開口部の割合を少なくするようにしてもよく、このようにすることで意匠性と機能性とを担保することが可能となる。 透過 A transmission window 16 is provided in the heating port 20 of the top plate 3. The transmission window 16 is provided so that the infrared sensor 11 can detect infrared rays of the cooking container 300 that pass through the top plate 3. The transmission window 16 is provided within a range of the heating port 20 and at a position facing the detection unit of the infrared sensor 11. It is preferable that the transmission window 16 is not coated so that infrared rays can easily pass therethrough. However, if the transmission window 16 is not coated, the heating coil 4 and the wiring inside the main body 2 may be visually recognized from above the top plate 3, which is not desirable in design. Therefore, when the transmission window 16 is not coated, a tube or a plate may be provided on the coil base 9 for holding the heating coil 4 and the sensor case 110 in the direction of the top plate 3. By providing such a blind tube or plate, the heating coil 4 and the wiring and the like can be hardly seen from the outside. Also, instead of covering the entire surface of the transmission window 16 with paint, the transmission window 16 may be painted in a dot or stripe shape to reduce the proportion of the unpainted openings. By doing so, it is possible to ensure design and functionality.
　温度検出部１３は、赤外線センサ１１及び接触式温度センサ１２からの出力値を受信し、受信した出力値に基づいて調理容器３００の温度を算出する。温度検出部１３は、その機能を実現する回路デバイスなどのハードウェア、またはマイコン等の演算装置及びその上で実行されるソフトウェアで構成される。 (4) The temperature detector 13 receives the output values from the infrared sensor 11 and the contact temperature sensor 12, and calculates the temperature of the cooking container 300 based on the received output values. The temperature detecting unit 13 is configured by hardware such as a circuit device that realizes the function, or an arithmetic unit such as a microcomputer and software executed on the arithmetic unit.
　制御部１４は、前面操作部５または操作表示部６に入力された設定内容に基づいて、加熱調理器１の動作を制御する。また、制御部１４は、使用者によって設定された調理温度と、温度検出部１３によって算出された調理容器３００の温度とに基づいてインバータ１５を制御し、加熱制御を行う。また、制御部１４は、前面操作部５または操作表示部６に入力された操作入力に基づいて、発光部３０の動作を制御する。 The control unit 14 controls the operation of the cooking device 1 based on the setting content input to the front operation unit 5 or the operation display unit 6. Further, the control unit 14 controls the inverter 15 based on the cooking temperature set by the user and the temperature of the cooking container 300 calculated by the temperature detection unit 13 to perform heating control. In addition, the control unit 14 controls the operation of the light emitting unit 30 based on an operation input input to the front operation unit 5 or the operation display unit 6.
　制御部１４は、専用のハードウェア、またはメモリとメモリに格納されるプログラムを実行するＣＰＵとを有するマイクロコンピュータで構成される。制御部１４が、温度検出部１３の機能を備える構成としてもよい。 The control unit 14 is constituted by dedicated hardware or a microcomputer having a memory and a CPU executing a program stored in the memory. The control unit 14 may be configured to have the function of the temperature detection unit 13.
　制御部１４が専用のハードウェアである場合、制御部１４は、例えば、単一回路、複合回路、ＡＳＩＣ（Application Specific Integrated Circuit）、ＦＰＧＡ（Field-Programmable Gate Array）、またはこれらを組み合わせたものが該当する。制御部１４が実現する各機能部のそれぞれを、個別のハードウェアで実現してもよいし、各機能部を一つのハードウェアで実現してもよい。 When the control unit 14 is dedicated hardware, the control unit 14 includes, for example, a single circuit, a composite circuit, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. Applicable. Each of the function units realized by the control unit 14 may be realized by individual hardware, or each function unit may be realized by one piece of hardware.
　制御部１４がマイクロコンピュータの場合、制御部１４が実行する各機能は、ソフトウェア、ファームウェア、またはソフトウェアとファームウェアとの組み合わせにより実現される。ソフトウェアやファームウェアはプログラムとして記述され、メモリに格納される。ＣＰＵは、メモリに格納されたプログラムを読み出して実行することにより、制御部１４の各機能を実現する。ここで、メモリは、例えば、ＲＡＭ、ＲＯＭ、フラッシュメモリ、ＥＰＲＯＭ、ＥＥＰＲＯＭ等の、不揮発性または揮発性の半導体メモリである。 When the control unit 14 is a microcomputer, each function executed by the control unit 14 is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in a memory. The CPU realizes each function of the control unit 14 by reading and executing a program stored in the memory. Here, the memory is, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, and an EEPROM.
　インバータ１５は、商用電源２００の交流電源を高周波電流に変換して、加熱コイル４へ供給する駆動回路である。なお、加熱調理器１は、図２に示す以外の構成を含んでもよく、例えば、加熱調理器１は外部機器との通信を行う通信部などを備えてもよい。 The inverter 15 is a drive circuit that converts the AC power of the commercial power supply 200 into a high-frequency current and supplies the high-frequency current to the heating coil 4. Note that the cooking device 1 may include a configuration other than that illustrated in FIG. 2. For example, the cooking device 1 may include a communication unit that performs communication with an external device.
　発光部３０は、複数の光源とその光源の発光動作を個別に制御する制御回路とを備える。本実施の形態の発光部３０は、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、及び第４光源３１Ｄを備える。本実施の形態の発光部３０は、４つの光源を備えているが、光源の数は２以上であればよい。本実施の形態の第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、及び第４光源３１Ｄは、基板に実装された発光ダイオード（ＬＥＤ）を有する。複数の光源である第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、第４光源３１Ｄは、一つの基板に実装されていてもよいし、複数の基板に分かれて実装されていてもよい。発光部３０に設けられた制御回路は、制御部１４からの指令に応じて、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、及び第４光源３１Ｄを個別に点灯あるいは消灯させる。 The light emitting unit 30 includes a plurality of light sources and a control circuit for individually controlling the light emitting operation of the light sources. The light emitting section 30 of the present embodiment includes a first light source 31A, a second light source 31B, a third light source 31C, and a fourth light source 31D. Although the light emitting unit 30 of the present embodiment includes four light sources, the number of light sources may be two or more. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D of the present embodiment have light emitting diodes (LEDs) mounted on a substrate. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D, which are a plurality of light sources, may be mounted on one substrate, or may be separately mounted on a plurality of substrates. . The control circuit provided in the light emitting unit 30 individually turns on or off the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D according to a command from the control unit 14.
　第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、及び第４光源３１Ｄは、それぞれ、光の出射面が、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄと対向している。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、及び第４光源３１Ｄ出射された光は、それぞれ、対向する第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、又は第４透過部３２Ｄを透過して、トッププレート３の上に出る。使用者は、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、又は第４透過部３２Ｄから出た光を視認することができる。 Each of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D has a light emitting surface having a first transmitting part 32A, a second transmitting part 32B, a third transmitting part 32C, and a fourth transmitting part 32C. It faces the transmission part 32D. The light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are respectively opposed to the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, or the third transmission part 32C. 4 The light passes through the transmission part 32D and exits on the top plate 3. The user can visually recognize light emitted from the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, or the fourth transmitting part 32D.
　なお、本実施の形態では、一つの透過部に対向して一つの光源が配置された例を示すが、一つの透過部に対して独立して制御される複数の光源が配置されていてもよい。各光源は、発光ダイオードなどの発光素子を一つ又は複数有することができる。また、一つの光源に対して、互いに異なる色の光を出射する複数の発光素子を設けてもよい。この場合、異なる色の光を出射する複数の発光素子を、発光部３０の制御回路が個別に点灯又は消灯させることで、一つの光源から出射される光の色を変えることができる。 Note that, in the present embodiment, an example is shown in which one light source is disposed so as to face one transmission unit, but a plurality of light sources that are independently controlled for one transmission unit may be disposed. Good. Each light source can have one or more light emitting elements such as light emitting diodes. Further, a plurality of light emitting elements that emit light of different colors may be provided for one light source. In this case, the color of the light emitted from one light source can be changed by individually turning on or off the plurality of light emitting elements that emit light of different colors by the control circuit of the light emitting unit 30.
　第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄは、光が透過するように構成されているため、トッププレート３の上から本体２の内部の発光部３０の基板及び配線などが視認されてしまうおそれがあり、意匠上望ましくない。また、対向する光源以外の光源からの光が、透過部に入り込む場合もある。例えば、第１透過部３２Ａに対して、第１光源３１Ａからの光のみならず第２光源３１Ｂからの光が入射しうる。これらの事項に該当する場合には、光源の出射面側と透過部との間に、光源からの光が対向する透過部以外の透過部へ入射することを防ぐ筒又は板を設けてもよい。 Since the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D are configured to transmit light, the light emitting part inside the main body 2 from above the top plate 3 There is a possibility that the substrate 30 and the wiring may be visually recognized, which is not desirable in design. Further, light from a light source other than the opposing light source may enter the transmission part. For example, not only the light from the first light source 31A but also the light from the second light source 31B can enter the first transmitting portion 32A. In these cases, a tube or a plate may be provided between the light-emitting surface side of the light source and the transmission portion to prevent light from the light source from entering a transmission portion other than the opposed transmission portion. .
（発光透過部の配置）
　図３は、実施の形態１に係るトッププレート３の概略平面図である。第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、及び第４透過部３２Ｄの配置及び形状を説明する。一組の第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、及び第４透過部３２Ｄが、それぞれの加熱口２０に対して、加熱口２０の外側に配置されている。第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、及び第４透過部３２Ｄは、この順で、加熱口２０から離れる方向に沿って、直線的に配置されている。本実施の形態の第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、及び第４透過部３２Ｄは、平面形状は矩形であり、面積はすべて同じである。 (Arrangement of light-emitting and transmitting parts)
FIG. 3 is a schematic plan view of the top plate 3 according to the first embodiment. The arrangement and shape of the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D will be described. One set of the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D are arranged outside the heating ports 20 with respect to the respective heating ports 20. The first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D are linearly arranged in this order along the direction away from the heating port 20. The first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D of the present embodiment have a rectangular planar shape and the same area.
　第１透過部３２Ａは、円形の加熱口２０の外周に相対して設けられている。図３の第１透過部３２Ａは、円形の加熱口２０の外周に相対する辺が長辺である長方形である。第２透過部３２Ｂは、第１透過部３２Ａに相対して設けられ、第１透過部３２Ａの長辺と平行な長辺を有する。同様に、第３透過部３２Ｃは、第２透過部３２Ｂに相対して設けられ、第２透過部３２Ｂの長辺と平行な長辺を有する。また、第４透過部３２Ｄは、第３透過部３２Ｃに相対して設けられ、第３透過部３２Ｃの長辺と平行な長辺を有する。 The first transmission part 32A is provided facing the outer periphery of the circular heating port 20. The first transmission part 32 </ b> A in FIG. 3 is a rectangle whose side facing the outer periphery of the circular heating port 20 is a long side. The second transmission part 32B is provided opposite to the first transmission part 32A, and has a long side parallel to the long side of the first transmission part 32A. Similarly, the third transmission part 32C is provided opposite to the second transmission part 32B, and has a long side parallel to the long side of the second transmission part 32B. The fourth transmission part 32D is provided opposite to the third transmission part 32C, and has a long side parallel to the long side of the third transmission part 32C.
　なお、一つの加熱口２０に対して設けられる透過部の数（本実施の形態では４）は、一つであってもよい。この場合、一つの透過部３２に対向して複数の光源を設けることができる。一つの加熱口２０に対して設けられる透過部の数は、加熱源である加熱コイル４の出力レベルの数と同数であってもよいし、異なる数であってもよい。 Note that the number of transmission portions provided for one heating port 20 (four in this embodiment) may be one. In this case, a plurality of light sources can be provided to face one transmission unit 32. The number of transmission sections provided for one heating port 20 may be the same as the number of output levels of the heating coil 4 as a heating source, or may be a different number.
　なお、透過部３２の発光透過窓は、火力設定数と同数を必要とするものではなく、火力１、２の場合は第１光源３１Ａを点灯し、火力３、４の場合は、第１光源３１Ａと第２光源３１Ｂを点灯させるというように、火力設定を割り付けてもよい。 The number of the light-emission transmission windows of the transmission part 32 does not need to be the same as the set number of heating powers. The heating power setting may be assigned such that the 31A and the second light source 31B are turned on.
（点灯制御例１）
　図４は、実施の形態１に係る光源の点灯制御例を説明するタイミングチャートである。図４では、第１光源３１Ａ～第４光源３１Ｄのそれぞれについて、消灯と点灯のタイミングを示している。図４の横軸は時間であり、期間ｔ１は火力１が設定されている期間、期間ｔ２は火力１よりも大きい火力３が設定されている期間を例示している。火力１から火力３へ設定変更された場合を例に、第１光源３１Ａ～第４光源３１Ｄの点灯制御を説明する。 (Lighting control example 1)
FIG. 4 is a timing chart illustrating an example of lighting control of the light source according to the first embodiment. FIG. 4 shows the timing of turning off and lighting on each of the first light source 31A to the fourth light source 31D. The horizontal axis in FIG. 4 is time, a period t1 illustrates a period in which the heating power 1 is set, and a period t2 illustrates a period in which the heating power 3 larger than the heating power 1 is set. The lighting control of the first light source 31A to the fourth light source 31D will be described with an example in which the setting is changed from the heating power 1 to the heating power 3.
　期間ｔ１に示すように、制御部１４は、前面操作部５または操作表示部６で火力１が設定され、加熱開始の指示が入力されると、第１光源３１Ａを点灯させ、期間ａが経過すると、第１光源３１Ａを消灯させ、第２光源３１Ｂを点灯させる。第２光源３１Ｂを点灯させて期間ｂが経過すると、第２光源３１Ｂを消灯させ、第１光源３１Ａを点灯させる。すなわち、第１光源３１Ａと第２光源３１Ｂとを、交互に点灯させる。第１光源３１Ａが点灯する１回あたりの期間ａの長さは、固定の値である。第２光源３１Ｂが点灯する１回あたりの期間ｂの長さも、固定の値である。制御部１４は、このような点灯期間が重複しないように第１光源３１Ａと第２光源３１Ｂとを点滅させる制御を、火力１が設定されている期間ｔ１の間に行う。 As shown in the period t1, the control unit 14 turns on the first light source 31A when the heating power 1 is set on the front operation unit 5 or the operation display unit 6 and an instruction to start heating is input, and the period a elapses. Then, the first light source 31A is turned off and the second light source 31B is turned on. When the period b elapses after the second light source 31B is turned on, the second light source 31B is turned off and the first light source 31A is turned on. That is, the first light source 31A and the second light source 31B are turned on alternately. The length of the period a per one time when the first light source 31A is turned on is a fixed value. The length of the period b for each turn-on of the second light source 31B is also a fixed value. The control unit 14 controls the first light source 31A and the second light source 31B to blink such that the lighting periods do not overlap during the period t1 in which the heating power 1 is set.
　次に、火力１から火力３へ設定変更が行われたとする。ここで、火力３＞火力１である。そうすると制御部１４は、火力１における点灯制御を停止し、期間ｔ２に示すように新たに火力３における点灯制御を開始する。図４の期間ｔ２に示すように、制御部１４は、第１光源３１Ａを点灯させ、期間ａが経過すると、第１光源３１Ａを消灯させ、第２光源３１Ｂを点灯させる。第２光源３１Ｂを点灯させて期間ｂが経過すると、第２光源３１Ｂを消灯させ、第３光源３１Ｃを点灯させる。第３光源３１Ｃを点灯させて期間ｃが経過すると、第３光源３１Ｃを消灯させ、第４光源３１Ｄを点灯させる。第４光源３１Ｄを点灯させて期間ｄが経過すると、第４光源３１Ｄを消灯させて第１光源３１Ａを点灯させる。すなわち、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、第４光源３１Ｄの順に沿った方向を第１方向とすると、この第一方向に沿った順で順次光源を点滅させる。第１光源３１Ａ～第４光源３１Ｄが点灯する期間ａ～ｄの長さは、それぞれ固定の値である。制御部１４は、このような点灯期間が重複しないように第１光源３１Ａ～第４光源３１Ｄを点滅させる制御を、火力３が設定されている期間ｔ２の間に行う。 Next, it is assumed that the setting has been changed from thermal power 1 to thermal power 3. Here, thermal power 3> thermal power 1. Then, the control unit 14 stops the lighting control in the heating power 1 and newly starts the lighting control in the heating power 3 as shown in a period t2. As illustrated in a period t2 in FIG. 4, the control unit 14 turns on the first light source 31A, and after the period a elapses, turns off the first light source 31A and turns on the second light source 31B. When the period b has elapsed after turning on the second light source 31B, the second light source 31B is turned off and the third light source 31C is turned on. When the period c has elapsed after turning on the third light source 31C, the third light source 31C is turned off and the fourth light source 31D is turned on. When the period d elapses after the fourth light source 31D is turned on, the fourth light source 31D is turned off and the first light source 31A is turned on. That is, assuming that the direction along the order of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D is the first direction, the light sources are sequentially turned on and off in the order along the first direction. The lengths of the periods a to d during which the first light source 31A to the fourth light source 31D are turned on are fixed values. The control unit 14 controls the first light source 31A to the fourth light source 31D to blink such that the lighting periods do not overlap during the period t2 when the heating power 3 is set.
　制御部１４は、期間ｔ１及び期間ｔ２に例示した点灯制御を、火力が変更される、あるいは加熱停止の操作が行われるまで続ける。 The control unit 14 continues the lighting control illustrated in the period t1 and the period t2 until the heating power is changed or the operation of stopping the heating is performed.
　また、図４では図示しないが、火力２が設定されている場合には、制御部１４は、第１光源３１Ａ、第２光源３１Ｂ及び第３光源３１Ｃを、この順で順次点滅させる。ここで、火力１＜火力２＜火力３である。また、火力０．５が設定されている場合には、制御部１４は、第１光源３１Ａのみを点滅させる。ここで、火力０．５＜火力１である。 Although not shown in FIG. 4, when the heating power 2 is set, the control unit 14 causes the first light source 31A, the second light source 31B, and the third light source 31C to blink sequentially in this order. Here, thermal power 1 <thermal power 2 <thermal power 3. When the heating power 0.5 is set, the control unit 14 causes only the first light source 31A to blink. Here, the thermal power 0.5 is smaller than the thermal power 1.
　このように制御部１４は、加熱源が加熱動作をしているときに、第１光源３１Ａ～第４光源３１Ｄのうち隣り合う光源であって火力に応じた数の光源を、一方向に順次点滅させる。火力が小さい場合には、加熱口２０に近い第１光源３１Ａと第２光源３１Ｂのみが点灯制御され、火力の増大に伴って、点灯制御される光源として第３光源３１Ｃと第４光源３１Ｄとがこの順で追加される。隣り合う光源を順次点滅させることで、トッププレート３の上方に視点を有する使用者には、トッププレート３の表面と平行な方向に沿った一方向の流れの光が透過部３２から出射されているように視認される。図４の期間ｔ２に示す点灯制御が行われた場合、図３に示す例では、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄ、第１透過部３２Ａ・・・の順に一方向に順次光が出射されるのが使用者に視認される。すなわち使用者には、加熱口２０に最も近い位置から外側に向かう一筋の光の流れが、視認される。 As described above, when the heating source is performing the heating operation, the control unit 14 sequentially arranges, in one direction, the number of the adjacent light sources among the first light source 31A to the fourth light source 31D in accordance with the heating power. Flash. When the heating power is small, only the first light source 31A and the second light source 31B close to the heating port 20 are controlled to be turned on, and as the heating power increases, the third light source 31C and the fourth light source 31D are turned on and off. Are added in this order. By sequentially blinking the adjacent light sources, a user having a viewpoint above the top plate 3 is provided with the light in one direction flowing in a direction parallel to the surface of the top plate 3 from the transmission unit 32. It looks like it is. When the lighting control shown in the period t2 in FIG. 4 is performed, in the example shown in FIG. 3, the first transmitting unit 32A, the second transmitting unit 32B, the third transmitting unit 32C, the fourth transmitting unit 32D, and the first transmitting unit. It is visually recognized by the user that light is sequentially emitted in one direction in the order of 32A. That is, the user can visually recognize a stream of light going outward from a position closest to the heating port 20.
　なお、図４の例では、火力の増大に伴って、加熱口２０に最も近い位置の第１光源３１Ａから最も離れた位置の第４光源３１Ｄに向かう方向に沿った順序で、点灯させる光源の数を増加させることを説明した。しかし、光源を点灯させる順序は、図４の逆方向であってもよい。具体的には、火力が最も小さい場合には、制御部１４は、加熱口２０から最も遠い位置の第４光源３１Ｄのみを点滅させ、火力の増大に伴って、点滅させる光源を、第３光源３１Ｃ、第２光源３１Ｂ、第１光源３１Ａの順に増加させる。このようにすると、トッププレート３の上方に視点を有する使用者には、加熱口２０に近づく方向の光の流れが、透過部３２から出射されているように視認される。 In the example of FIG. 4, the light sources to be turned on in the order along the direction toward the fourth light source 31 </ b> D farthest from the first light source 31 </ b> A closest to the heating port 20 with the increase of the heating power. Explained to increase the number. However, the order in which the light sources are turned on may be the reverse direction of FIG. Specifically, when the heating power is the smallest, the control unit 14 causes only the fourth light source 31D farthest from the heating port 20 to blink, and causes the third light source to blink with the increase in the heating power. 31C, the second light source 31B, and the first light source 31A are sequentially increased. In this way, a user having a viewpoint above the top plate 3 visually recognizes the flow of light in the direction approaching the heating port 20 as if it were emitted from the transmission part 32.
　図４の例において、期間ａ、期間ｂ、期間ｃ及び期間ｄの長さは、すべて同じである。このように複数の光源を等間隔で順次点滅させる場合には、３つ以上の光源を並んだ順に点滅させる。このようにすることで、透過部３２から出射される光が、一方向に流れているように使用者に視認させることができる。また、３つ以上の光源を並んだ順に点滅させ、最後の光源を点滅させた後に、再び１番目の光源から順に点滅させるループを繰り返すことで、より光の方向性を強調することができる。図４の例では、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、第４光源３１Ｄの順に点滅させ、再び１番目の第１光源３１Ａから順に点滅させる。このような３つ以上の光源による点滅のループを繰り返すことで、使用者に一方向の光の流れを連続的に視認させることができる。一方向の流れの光を使用者に視認させることで、加熱源である加熱コイル４が動作していることを使用者は認識しやすくなる。 4 In the example of FIG. 4, the lengths of the periods a, b, c, and d are all the same. When a plurality of light sources are sequentially blinked at equal intervals in this manner, three or more light sources are blinked in the arranged order. By doing so, the light emitted from the transmission section 32 can be visually recognized by the user as flowing in one direction. Further, by repeating a loop in which three or more light sources are blinked in the arranged order, the last light source is blinked, and then the first light source is blinked again, the directionality of light can be further emphasized. In the example of FIG. 4, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are blinked in this order, and the first light source 31A is blinked again in order. By repeating such a blinking loop by three or more light sources, the user can continuously see the flow of light in one direction. The user can easily recognize that the heating coil 4 serving as the heating source is operating by making the light of the one-way flow visible to the user.
　図４の例において、期間ａ、期間ｂ、期間ｃ、期間ｄの長さは、１秒以内とすることができる。また、期間ａ、期間ｂ、期間ｃ、期間ｄの長さを、１秒以上、例えば２秒～３秒程度としてもよく、このようにすると視覚的認知能力が低下した高齢者などの使用者にも、光の流れが視認されやすい。また、図４の例及びこれ以降の例において、期間ａ～ｄの長さを使用者が変更できるようにしてもよい。この場合、例えば前面操作部５に、点灯期間の長さを入力する入力部を設け、制御部１４は、入力部に入力された点灯期間に基づいて、期間ａ～ｄの長さを決定する。 に お い て In the example of FIG. 4, the lengths of the period a, the period b, the period c, and the period d can be within one second. Further, the length of the period a, the period b, the period c, and the period d may be set to 1 second or more, for example, about 2 seconds to 3 seconds. In addition, the flow of light is easily recognized. Further, in the example of FIG. 4 and the examples thereafter, the length of the periods a to d may be changed by the user. In this case, for example, an input unit for inputting the length of the lighting period is provided in the front operation unit 5, and the control unit 14 determines the length of the periods a to d based on the lighting period input to the input unit. .
（点灯制御例２）
　図５は、実施の形態１に係る光源の他の点灯制御例を説明するタイミングチャートである。図５を図４と対比して分かるように、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄが点灯する１回あたりの期間ａ、期間ｂ、期間ｃ及び期間ｄは、図４に示したものよりも短い。すなわち、複数の光源の点滅の周期が、点灯制御例１とは異なる。 (Lighting control example 2)
FIG. 5 is a timing chart illustrating another lighting control example of the light source according to the first embodiment. As can be seen by comparing FIG. 5 with FIG. 4, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D turn on one time period a, period b, period c, and period d. Is shorter than that shown in FIG. That is, the cycle of the blinking of the plurality of light sources is different from that of the lighting control example 1.
　制御部１４は、図４で示した点灯制御例１と、図５で示す点灯制御例２とを、加熱源の動作状態、あるいは加熱調理器１の状態に応じて切り替える。このようにすることで、加熱源の動作状態の変化あるいは加熱調理器１の状態の変化を、使用者はより認識しやすい。 The control unit 14 switches between the lighting control example 1 shown in FIG. 4 and the lighting control example 2 shown in FIG. 5 according to the operating state of the heating source or the state of the cooking device 1. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
　例えば、赤外線センサ１１又は接触式温度センサ１２によって、調理容器３００の温度が目標温度に近づいたことが検出された場合に、制御部１４は、点灯制御例１から点灯制御例２に切り替える。ここで目標温度は、前面操作部５、操作表示部６又は自動調理機能で設定されうる。点灯制御例１から点灯制御例２に切り替えられると、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄのうち点滅している光源の数が維持されたまま、点滅する周期が変更される。点灯制御例２に切り替えられると、使用者には、一方向の光の流れがそれ以前よりも速いスピードの流れに変化したことが視認される。このようにすることで、透過部３２から出射される一方向の光の流れを、調理容器３００の温度が目標温度に近づいたことを示す警告表示として用いることができる。 For example, when the infrared sensor 11 or the contact temperature sensor 12 detects that the temperature of the cooking container 300 has approached the target temperature, the control unit 14 switches from the first lighting control to the second lighting control. Here, the target temperature can be set by the front operation unit 5, the operation display unit 6, or the automatic cooking function. When the lighting control is switched from the lighting control example 1 to the lighting control example 2, the light source blinks while the number of the blinking light sources among the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D is maintained. The period is changed. When switching to the lighting control example 2, the user visually recognizes that the flow of light in one direction has changed to a flow at a faster speed than before. In this way, the flow of light in one direction emitted from the transmission unit 32 can be used as a warning display indicating that the temperature of the cooking container 300 has approached the target temperature.
　そのほかに例えば、光源の点滅スピードの異なる点灯制御例１と点灯制御例２とを、加熱源の出力の違いを表現するために用いることもできる。具体的には、制御部１４は、加熱コイル４の出力が大きい場合と小さい場合のいずれか一方において点灯制御例１を実行し、他方において点灯制御例２を実行する。このようにすることで、使用者に加熱源の出力の違いを認識させやすくすることができる。 In addition, for example, lighting control example 1 and lighting control example 2 having different blinking speeds of the light source can be used to express a difference in the output of the heating source. Specifically, the control unit 14 executes the lighting control example 1 in one of the case where the output of the heating coil 4 is large and the case where the output is small, and executes the lighting control example 2 in the other case. This makes it easier for the user to recognize the difference in the output of the heating source.
（点灯制御例３）
　図６は、実施の形態１に係る光源の他の点灯制御例を説明するタイミングチャートである。図６に示す点灯制御例３では、制御部１４は、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄを、同時に点灯及び消灯させる。このようにすべての光源をその点灯及び消灯タイミングが同期するようにして点滅させる点灯制御例３は、図４の点灯制御例１と図５の点灯制御例２の何れか又は両方と組み合わせて用いられる。制御部１４は、加熱源の動作状態、あるいは加熱調理器１の状態に応じて、図４で示した点灯制御例１又は図５で示した点灯制御例２から、図６で示す点灯制御例３に切り替える。このようにすることで、加熱源の動作状態の変化あるいは加熱調理器１の状態の変化を、使用者はより認識しやすい。 (Lighting control example 3)
FIG. 6 is a timing chart illustrating another lighting control example of the light source according to the first embodiment. In the lighting control example 3 shown in FIG. 6, the control unit 14 simultaneously turns on and off the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D. As described above, the lighting control example 3 in which all the light sources are turned on and off in synchronization with the lighting and extinguishing timings is used in combination with one or both of the lighting control example 1 in FIG. 4 and the lighting control example 2 in FIG. Can be The control unit 14 changes the lighting control example illustrated in FIG. 6 from the lighting control example 1 illustrated in FIG. 4 or the lighting control example 2 illustrated in FIG. 5 according to the operating state of the heating source or the state of the heating cooker 1. Switch to 3. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
　例えば、赤外線センサ１１又は接触式温度センサ１２によって、調理容器３００の温度が目標温度に到達したことが検出された場合に、制御部１４は、点灯制御例１又は点灯制御例２から点灯制御例３に切り替える。点灯制御例３に切り替えられると、使用者には、一方向の光の流れが、止まったように視認される。このようにすることで、同時に点滅する第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄから出射され、透過部３２から出る点滅する光を、使用者に対する警告表示として用いることができる。なお、制御部１４は、調理容器３００の温度が目標温度に到達したことが検出された場合に、点灯制御例３に加え、加熱源による加熱を停止させる制御を行ってもよい。 For example, when the infrared sensor 11 or the contact-type temperature sensor 12 detects that the temperature of the cooking vessel 300 has reached the target temperature, the control unit 14 changes the lighting control example 1 or the lighting control example 2 to the lighting control example 2. Switch to 3. When switched to the lighting control example 3, the user visually recognizes the flow of light in one direction as stopped. In this manner, the blinking light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D that blink simultaneously and emitted from the transmission unit 32 is used as a warning display for the user. be able to. In addition, when it is detected that the temperature of the cooking container 300 has reached the target temperature, the control unit 14 may perform control to stop heating by the heating source in addition to the lighting control example 3.
（点灯制御例４）
　図７は、実施の形態１に係る光源の他の点灯制御例を説明するタイミングチャートである。図７において縦軸は、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄから出射される光の輝度の大きさを、簡易的に示している。 (Lighting control example 4)
FIG. 7 is a timing chart illustrating another lighting control example of the light source according to the first embodiment. In FIG. 7, the vertical axis schematically shows the magnitude of the luminance of the light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D.
　この点灯制御例４は、複数の光源を順次点滅させるという点では、前述の点灯制御例１及び点灯制御例２と同じであるが、光源の輝度を段階的にあるいは連続的に低下させる点で点灯制御例１及び点灯制御例２と異なる。制御部１４は、第１光源３１Ａを周期的に点灯させ、かつ１回の点灯期間において、輝度を段階的にあるいは連続的に低下させる。このようにすることで、減衰する光の点滅が使用者によって視認される。 This lighting control example 4 is the same as the above-described lighting control examples 1 and 2 in that a plurality of light sources are sequentially turned on and off, but in that the brightness of the light sources is reduced stepwise or continuously. Lighting control example 1 and lighting control example 2 are different. The control unit 14 periodically turns on the first light source 31A, and decreases the luminance stepwise or continuously during one lighting period. In this way, the blinking of the attenuating light is visually recognized by the user.
　この点灯制御例４は、前述の点灯制御例１～点灯制御例３の一以上と組み合わせて用いられる。制御部１４は、加熱源の動作状態、あるいは加熱調理器１の状態に応じて、点灯制御例１、点灯制御例２及び点灯制御例３のいずれかから、図７で示す点灯制御例４に切り替える。このようにすることで、加熱源の動作状態の変化あるいは加熱調理器１の状態の変化を、使用者はより認識しやすい。 点灯 This lighting control example 4 is used in combination with one or more of the lighting control examples 1 to 3 described above. The controller 14 changes the lighting control example 1, the lighting control example 2, or the lighting control example 3 to the lighting control example 4 shown in FIG. Switch. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
　例えば、赤外線センサ１１又は接触式温度センサ１２によって、調理容器３００の温度が目標温度に到達したことが検出されたときに、点灯制御例３が実行される。点灯制御例３をしばらくの間実行した後に、制御部１４は加熱源の出力を小さくするとともに、点灯制御例３から点灯制御例４に切り替える。点灯制御例４に切り替えられると、使用者には、減衰しながら点滅する光が視認される。このように、透過部３２から出る減衰しながら点滅する光を、使用者に対して加熱源の出力が抑制されている状態であることを示す警告表示として用いることができる。 For example, when the infrared sensor 11 or the contact-type temperature sensor 12 detects that the temperature of the cooking container 300 has reached the target temperature, the lighting control example 3 is executed. After performing the lighting control example 3 for a while, the control unit 14 reduces the output of the heating source and switches from the lighting control example 3 to the lighting control example 4. When switched to the lighting control example 4, the user visually recognizes light that blinks while attenuating. In this way, the light that attenuates and blinks from the transmission unit 32 can be used as a warning display to the user indicating that the output of the heating source is being suppressed.
（点灯制御例５）
　点灯制御例５は、複数の光源の中からランダムに選択された光源を、順次点滅させるものである。制御部１４は、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄの中から、乱数などを用いてランダムに１つの光源を選択して点灯させ、その他の光源を消灯させる、という制御を繰り返す。制御部１４は、点灯期間が重複しないように、光源を点灯させる。点灯期間は、固定の値でもよいし、ランダムに変化させた値であってもよい。 (Lighting control example 5)
In the lighting control example 5, a light source randomly selected from a plurality of light sources is sequentially turned on and off. The control unit 14 randomly selects one light source from among the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D using a random number or the like, turns on the light source, and turns off the other light sources. Is repeated. The control unit 14 turns on the light source so that the lighting periods do not overlap. The lighting period may be a fixed value or a value that is randomly changed.
　この点灯制御例５は、前述の点灯制御例１～点灯制御例４の一以上と組み合わせて用いられる。制御部１４は、加熱源の動作状態、あるいは加熱調理器１の状態に応じて、点灯制御例１、点灯制御例２及び点灯制御例３のいずれかから、図６で示す点灯制御例５に切り替える。このようにすることで、加熱源の動作状態の変化あるいは加熱調理器１の状態の変化を、使用者はより認識しやすい。 This lighting control example 5 is used in combination with one or more of the above-described lighting control examples 1 to 4. The control unit 14 changes the lighting control example 1, the lighting control example 2, or the lighting control example 3 to the lighting control example 5 illustrated in FIG. 6 from the lighting control example 1, the lighting control example 2, or the lighting control example 3 according to the operating state of the heating source or the state of the heating cooker 1. Switch. By doing so, the user can more easily recognize a change in the operation state of the heating source or a change in the state of the heating cooker 1.
　例えば、赤外線センサ１１又は接触式温度センサ１２によって、調理容器３００の温度が目標温度に到達したことが検出されたときに、点灯制御例３が実行される。点灯制御例３をしばらくの間実行した後に、赤外線センサ１１又は接触式温度センサ１２によって、調理容器３００の温度が過度に上昇したことを示す閾値を超えたことが検出されたとする。この場合、制御部１４は、点灯制御例３から点灯制御例５に切り替える。点灯制御例５に切り替えられると、使用者には、ランダムな光の点滅が視認される。このように、透過部３２からばらばらと出射される光を、使用者に対して調理容器３００が過度に加熱されている異常状態であることを示す警告表示として用いることができる。 For example, when the infrared sensor 11 or the contact-type temperature sensor 12 detects that the temperature of the cooking container 300 has reached the target temperature, the lighting control example 3 is executed. It is assumed that after the lighting control example 3 has been executed for a while, the infrared sensor 11 or the contact-type temperature sensor 12 detects that the temperature of the cooking container 300 has exceeded a threshold value indicating an excessive rise. In this case, the control unit 14 switches from the lighting control example 3 to the lighting control example 5. Switching to the lighting control example 5 allows the user to visually recognize the blinking of random light. In this manner, the light emitted separately from the transmission unit 32 can be used as a warning display to the user indicating that the cooking container 300 is in an abnormal state in which the cooking container 300 is excessively heated.
　以上のように、本実施の形態の加熱調理器１は、トッププレート３の下に設けられ、独立して制御される第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄを有する発光部３０を備えた。また、トッププレート３の加熱口２０の外側には、第１光源３１Ａ～第４光源３１Ｄから出射される光が透過する透過部３２を備えた。そして、加熱コイル４が調理容器３００を加熱しているときに、第１光源３１Ａ～第４光源３１Ｄのうち光を出射する光源の位置を連続的に変更する。具体的には、図４、５、７で例示したように、直線上に並んで配置された第１光源３１Ａ～第４光源３１Ｄが、この並んだ順に順次点滅し、かつこの点滅がループするように繰り返される。このような第１光源３１Ａ～第４光源３１Ｄの動作により、トッププレート３の表面と平行な方向に沿った一方向の流れの光が透過部３２から出射される。これにより、使用者には光の流れが視認される。したがって、使用者が色覚に障害を有している場合であっても、加熱調理器１が動作していることを認識しやすくなる。加熱調理器１が動作していることを認識しやすくなることで、使用者は、加熱調理器１の電源の切り忘れ及び不要な加熱源への電力投入を抑制することができる。 As described above, the heating cooker 1 of the present embodiment is provided below the top plate 3 and controlled independently of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D. The light emitting unit 30 having Further, on the outside of the heating port 20 of the top plate 3, there is provided a transmission portion 32 through which light emitted from the first light source 31A to the fourth light source 31D is transmitted. Then, when the heating coil 4 is heating the cooking container 300, the position of the light source that emits light among the first light source 31A to the fourth light source 31D is continuously changed. Specifically, as illustrated in FIGS. 4, 5, and 7, the first light source 31A to the fourth light source 31D arranged in a straight line blink sequentially in this order, and the blinking loops. And so on. By the operation of the first light source 31A to the fourth light source 31D, light in one direction flowing in a direction parallel to the surface of the top plate 3 is emitted from the transmission part 32. This allows the user to visually recognize the flow of light. Therefore, even when the user has a disability in color vision, it is easy to recognize that the cooking device 1 is operating. By making it easier to recognize that the cooking device 1 is operating, the user can suppress forgetting to turn off the power supply of the cooking device 1 and turning on power to unnecessary heating sources.
　また、本実施の形態では、加熱源である加熱コイル４の出力の大きさに応じて、第１光源３１Ａ～第４光源３１Ｄのうち点滅するものの数が異なる。図４で示した点灯制御例１では、加熱コイル４の出力が大きいほど、光を出射する光源の数が増加する。配置された第１光源３１Ａ～第４光源３１Ｄのうち点滅するものの数を異ならせると、使用者には加熱コイル４の出力に応じて点滅する光の位置が変化したように視認される。このため、使用者は、加熱源の出力が変化したことを視覚的に認識しやすい。したがって、使用者は、加熱源の出力の調整を行いやすくなるとともに出力の調整をしたときに安心感を得ることができる。また、使用者は、加熱源の出力の調整を行いやすくなることで、調理に適した出力で調理容器３００を加熱することができ、調理の仕上がりを向上させることができるとともに消費電力を低減させることができる。 In addition, in the present embodiment, the number of blinking ones of the first light source 31A to the fourth light source 31D differs according to the magnitude of the output of the heating coil 4 that is the heating source. In the lighting control example 1 shown in FIG. 4, as the output of the heating coil 4 increases, the number of light sources that emit light increases. When the number of blinking light sources among the arranged first light source 31A to fourth light source 31D is changed, the user visually recognizes that the position of the blinking light has changed according to the output of the heating coil 4. Therefore, the user can easily visually recognize that the output of the heating source has changed. Therefore, the user can easily adjust the output of the heating source, and can have a sense of security when adjusting the output. In addition, since the user can easily adjust the output of the heating source, it is possible to heat the cooking container 300 with an output suitable for cooking, thereby improving the finish of cooking and reducing power consumption. be able to.
（透過部の変形例）
　以下、図面を参照して、透過部３２の形状の変形例を説明する。 (Modified example of transmission part)
Hereinafter, a modified example of the shape of the transmission unit 32 will be described with reference to the drawings.
　図８は、実施の形態１の変形例１に係るトッププレート３の概略平面図である。図８に示す例では、透過部３２を構成する第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄは、加熱口２０に相似する形状の一部と同じ形状である。図８の例では、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄは、円弧形状である。そして、加熱口２０から離れるほど、この円弧形状の円弧の長さが長くなっていて、表面積も大きくなっている。図８の例では、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄの順で、円弧の長さが長くなっており、最も外側にある第４透過部３２Ｄの円弧の長さが最も長い。このように構成することで、透過部３２から出る光が加熱口２０を中心に広がる印象を、使用者に与えることができる。 FIG. 8 is a schematic plan view of the top plate 3 according to the first modification of the first embodiment. In the example illustrated in FIG. 8, the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D that constitute the transmission part 32 are the same as a part of a shape similar to the heating port 20. Shape. In the example of FIG. 8, the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D have an arc shape. As the distance from the heating port 20 increases, the length of the circular arc increases, and the surface area also increases. In the example of FIG. 8, the length of the arc is longer in the order of the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D, and the outermost fourth transmission part 32A. The arc length of the portion 32D is the longest. With this configuration, it is possible to give the user an impression that the light emitted from the transmission section 32 spreads around the heating port 20.
　また、加熱源の出力の増大に伴って、光が出射される透過部３２の範囲を加熱口２０の外側に向かって増やしていくとよい。具体的には、加熱コイル４に火力１が設定されている場合には、第１透過部３２Ａと第２透過部３２Ｂから光が出射される。加熱コイル４に火力１よりも大きい火力が設定されている場合には、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄから光が出射される。このように、火力が大きくなるほど、光が出射される面積を大きくすることで、火力の大きさを使用者に認識させやすくなる。 {Circle around (4)} As the output of the heating source increases, the range of the transmission section 32 from which light is emitted may be increased toward the outside of the heating port 20. Specifically, when the heating power 1 is set in the heating coil 4, light is emitted from the first transmitting part 32A and the second transmitting part 32B. When the heating power greater than the heating power 1 is set in the heating coil 4, light is emitted from the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D. As described above, as the heating power increases, the area from which light is emitted is increased, so that the user can easily recognize the magnitude of the heating power.
　なお、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄの形状は、円弧形状に限定されず、例えば矩形であってもよい。 The shapes of the first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D are not limited to arc shapes, but may be rectangular, for example.
　図９は、実施の形態１の変形例２に係るトッププレート３の概略平面図である。図９に示す例では、透過部３２を構成する第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄは、加熱口２０から離れた位置にあるものほど、加熱口２０の径方向に沿った方向の長さが長い。図９の例では、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄの順で、加熱口２０の径方向に沿った辺の長さが長くなっており、最も外側にある第４透過部３２Ｄの辺の長さが最も長い。このように構成することで、透過部３２から出る光が加熱口２０を中心に広がる印象を、使用者に与えることができる。 FIG. 9 is a schematic plan view of the top plate 3 according to the second modification of the first embodiment. In the example illustrated in FIG. 9, the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D that configure the transmission part 32 are more distant from the heating port 20. The length in the radial direction of the heating port 20 is long. In the example of FIG. 9, the length of the side along the radial direction of the heating port 20 becomes longer in the order of the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D. The length of the side of the outermost fourth transmission portion 32D is the longest. With this configuration, it is possible to give the user an impression that the light emitted from the transmission section 32 spreads around the heating port 20.
　また、加熱源の出力の増大に伴って、光が出射される透過部３２の範囲を加熱口２０の外側に向かって増やしていくとよい。具体的には、加熱コイル４に火力１が設定されている場合には、第１透過部３２Ａと第２透過部３２Ｂから光が出射される。加熱コイル４に火力１よりも大きい火力が設定されている場合には、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄから光が出射される。このように、火力が大きくなるほど、光が出射される面積を大きくすることで、火力の大きさを使用者に認識させやすくなる。 {Circle around (4)} As the output of the heating source increases, the range of the transmission section 32 from which light is emitted may be increased toward the outside of the heating port 20. Specifically, when the heating power 1 is set in the heating coil 4, light is emitted from the first transmitting part 32A and the second transmitting part 32B. When the heating power greater than the heating power 1 is set in the heating coil 4, light is emitted from the first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D. As described above, as the heating power increases, the area from which light is emitted is increased, so that the user can easily recognize the magnitude of the heating power.
（点灯制御例１の変形例１）
　図１０は、実施の形態１に係る光源の点灯制御例１の変形例１を説明する図である。この変形例１は、点灯期間が重複しないように第１光源３１Ａ～第４光源３１Ｄのいずれか２以上を順次点滅させるという点では図４の点灯制御例１と同じである。変形例１は、ある光源が点灯してから次の光源が点灯するまでの間に、いずれの光源も点灯しないＯＦＦ期間を有する点で、図４の点灯制御例１と異なる。図１０では、ＯＦＦ期間を符号ｅで示している。このように、複数の光源が順次点滅する構成において、光源の点灯期間と点灯期間との間に、いずれの光源も点灯しない期間を設けることで、各光源の点灯状態と消灯状態が明確に区別されて使用者に視認されやすくなる。このため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 (Modification 1 of Lighting Control Example 1)
FIG. 10 is a diagram illustrating a first modification of the first light source lighting control according to the first embodiment. The first modification is the same as the first lighting control example of FIG. 4 in that any two or more of the first light source 31A to the fourth light source 31D are sequentially turned on and off so that the lighting periods do not overlap. Modification Example 1 differs from Lighting Control Example 1 in FIG. 4 in that there is an OFF period in which none of the light sources is turned on after a certain light source is turned on until the next light source is turned on. In FIG. 10, the OFF period is indicated by a symbol e. In this manner, in a configuration in which a plurality of light sources are sequentially turned on and off, by providing a period in which none of the light sources is turned on between the lighting periods of the light sources, the turned-on state and the turned-off state of each light source are clearly distinguished. This makes it easier for the user to see. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
（点灯制御例１の変形例２）
　図１１は、実施の形態１に係る光源の点灯制御例１の変形例２を説明する図である。変形例２は、複数の光源が固有の周期で点滅を繰り返し、かつ複数の光源のうちの１番目の光源が点灯してから２番目の光源が点灯するまでの期間の長さと、２番目の光源が点灯してから３番目の光源が点灯するまでの期間の長さとが異なる例の一つである。この変形例２は、点灯期間が重複しないように第１光源３１Ａ～第４光源３１Ｄのいずれか２以上を順次点滅させるという点では図４の点灯制御例１と同じである。 (Modification 2 of Lighting Control Example 1)
FIG. 11 is a diagram illustrating a second modification of the first light source lighting control according to the first embodiment. Modification 2 is a method in which a plurality of light sources repeatedly blink at a specific cycle, and a length of a period from when a first light source of the plurality of light sources is turned on to when a second light source is turned on, and This is one example in which the length of the period from when the light source is turned on to when the third light source is turned on is different. The modification 2 is the same as the lighting control example 1 of FIG. 4 in that any two or more of the first to fourth light sources 31A to 31D are sequentially turned on and off so that the lighting periods do not overlap.
　変形例２は、各光源が点灯する期間の長さを、光源によって異ならせるものである。本実施の形態では、加熱口２０から離れた位置にある光源ほど１回あたりの点灯時間が長く、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ、第４光源３１Ｄの順に、点灯時間が長くなっている。すなわち、期間ａ＜期間ｂ＜期間ｃ＜期間ｄという関係である。ここで、期間ａは例えば１秒程度、期間ｄは例えば３秒程度である。１回あたりの点灯期間の長さを異ならせて複数の光源を点滅させることで、どの光源から光が出射されているのか使用者に認識されやすくなる。このため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 In the second modification, the length of the period in which each light source is turned on is made different depending on the light source. In the present embodiment, a light source located farther from the heating port 20 has a longer lighting time per turn, and the lighting time in the order of the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D. Is getting longer. That is, the relationship is that period a <period b <period c <period d. Here, the period a is, for example, about 1 second, and the period d is, for example, about 3 seconds. By blinking the plurality of light sources while varying the length of the lighting period per time, it becomes easier for the user to recognize from which light source the light is emitted. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
　なお、この変形例２においても、変形例１と同様に、ある光源が点灯してから次の光源が点灯するまでの間に、いずれの光源も点灯しないＯＦＦ期間を設けてもよい。このようにすることで、変形例１と同様の作用効果を得ることができる。また、変形例２においては、ＯＦＦ期間を設けることなく光源が順次点滅してもよい。 In the second modification, similarly to the first modification, an OFF period in which none of the light sources is turned on may be provided between the time when a certain light source is turned on and the time when the next light source is turned on. By doing so, it is possible to obtain the same operation and effect as the first modification. In the second modification, the light source may blink sequentially without providing the OFF period.
（点灯制御例１の変形例３）
　図１２は、実施の形態１に係る光源の点灯制御例１の変形例３を説明する図である。変形例３は、複数の光源が固有の周期で点滅を繰り返す。さらに、複数の光源のうちの１番目の光源が点灯してから２番目の光源が点灯するまでの期間の長さと、最後の光源が点灯してから次に１番目の光源が点灯するまでの期間の長さとが異なる例の一つである。この変形例３は、点灯期間が重複しないように第１光源３１Ａ～第４光源３１Ｄのそれぞれに着目すると、点滅を繰り返すという点では図４の点灯制御例１と同じである。 (Modification 3 of Lighting Control Example 1)
FIG. 12 is a diagram for explaining a third modification of the first light source lighting control according to the first embodiment. In the third modification, a plurality of light sources repeatedly blink at a unique cycle. Further, the length of the period from when the first light source of the plurality of light sources is turned on to when the second light source is turned on, and the length of time between when the last light source is turned on and when the first light source is turned on. This is one example in which the length of the period is different. This modification 3 is the same as the lighting control example 1 of FIG. 4 in that blinking is repeated when focusing on each of the first light source 31A to the fourth light source 31D so that the lighting periods do not overlap.
　変形例３は、点滅するループに加わっている光源のうち、最も加熱口２０から離れた位置にある光源の１回あたりの点灯期間を、他の光源の点灯期間よりも長くするものである。図１２では、第１光源３１Ａ、第２光源３１Ｂ及び第３光源３１Ｃの３つが順次点滅する例を示しているが、加熱口２０から最も離れた位置にある第３光源３１Ｃが点灯する期間ｃが、期間ａ及び期間ｂよりも長い。図１２で例示したものよりも火力が小さい場合には、期間ａ＜期間ｂとなるように第１光源３１Ａと第２光源３１Ｂとが順次点滅する。図１２で例示したものよりも火力が大きい場合には、期間ａ＝期間ｂ＝期間ｃ＜期間ｄとなるように、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄを順次点滅させる。このように、点滅のループに加わっている光源のうち、最も外側に位置する光源の点灯期間を他の光源の点灯期間よりも長くすることで、透過部３２から出射される光の外縁を使用者が認識しやすくなる。このため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 In the third modification, of the light sources that are participating in the blinking loop, the lighting period per light source located farthest from the heating port 20 is longer than the lighting period of the other light sources. FIG. 12 illustrates an example in which three of the first light source 31A, the second light source 31B, and the third light source 31C blink sequentially, but the period c in which the third light source 31C located farthest from the heating port 20 is turned on. Is longer than the periods a and b. When the thermal power is smaller than that illustrated in FIG. 12, the first light source 31A and the second light source 31B blink sequentially so that the period a <the period b. When the thermal power is larger than that illustrated in FIG. 12, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are set so that the period a = the period b = the period c <the period d. Blink sequentially. As described above, by making the lighting period of the outermost light source among the light sources participating in the blinking loop longer than the lighting periods of the other light sources, the outer edge of the light emitted from the transmission unit 32 is used. People can easily recognize. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
　なお、この変形例３においても、変形例１と同様に、ある光源が点灯してから次の光源が点灯するまでの間に、いずれの光源も点灯しないＯＦＦ期間を設けてもよい。このようにすることで、変形例１と同様の作用効果を得ることができる。また、変形例３においては、ＯＦＦ期間を設けることなく光源が順次点滅してもよい。 In the third modification, similarly to the first modification, an OFF period in which none of the light sources is turned on may be provided between the time when a certain light source is turned on and the time when the next light source is turned on. By doing so, it is possible to obtain the same operation and effect as the first modification. In the third modification, the light sources may blink sequentially without providing an OFF period.
（点灯制御例１の変形例４）
　図１３は、実施の形態１に係る光源の点灯制御例１の変形例４を説明する図である。変形例４は、複数の光源が固有の周期で点滅を繰り返し、かつ複数の光源のうちの１番目の光源が点灯してから２番目の光源が点灯するまでの期間の長さと、２番目の光源が点灯してから３番目の光源が点灯するまでの期間の長さとが異なる例の一つである。この変形例４は、第１光源３１Ａ～第４光源３１Ｄの２以上が点滅するという点では図４の点灯制御例１と同じである。 (Modification 4 of Lighting Control Example 1)
FIG. 13 is a diagram illustrating a fourth modification of the first example of the lighting control of the light source according to the first embodiment. Modification 4 is a method in which a plurality of light sources repeatedly blink at a specific cycle, and a length of a period from when a first light source of the plurality of light sources is turned on to when a second light source is turned on, and This is one example in which the length of the period from when the light source is turned on to when the third light source is turned on is different. The modification 4 is the same as the lighting control example 1 of FIG. 4 in that two or more of the first light source 31A to the fourth light source 31D blink.
　変形例４は、点滅する光源が点灯を開始するタイミングがずれているが、光源の点灯期間が重複しており、光源が消灯するタイミングが同じである。詳しくは、第１光源３１Ａが点灯を開始し、その後、第１光源３１Ａが点灯した状態のまま第２光源３１Ｂが点灯を開始する。その後、第１光源３１Ａ及び第２光源３１Ｂが点灯した状態のまま、第３光源３１Ｃが点灯を開始する。その後、第１光源３１Ａ、第２光源３１Ｂ及び第３光源３１Ｃが点灯した状態のまま、第４光源３１Ｄが点灯を開始する。その後、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄが、同時に消灯する。各光源に着目すると、点滅を繰り返すという点では点灯制御例１と同じであるが、複数の光源の点灯期間が重複しているため、一方向の流れの光が増幅していくように使用者に視認され、使用者は光の流れを認識しやすくなる。このため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 In Modification 4, the timing at which the blinking light source starts lighting is shifted, but the lighting periods of the light sources overlap, and the timing at which the light source turns off is the same. Specifically, the first light source 31A starts lighting, and thereafter, the second light source 31B starts lighting while the first light source 31A remains lit. After that, the third light source 31C starts lighting while the first light source 31A and the second light source 31B remain lit. After that, the fourth light source 31D starts lighting while the first light source 31A, the second light source 31B, and the third light source 31C remain lit. Thereafter, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are simultaneously turned off. Focusing on each light source, it is the same as the lighting control example 1 in that it blinks repeatedly. However, since the lighting periods of a plurality of light sources overlap, the user can amplify the light in one direction. And the user can easily recognize the flow of light. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
　図１３では、点滅する光源が点灯を開始するタイミングがずれている例を示したが、これに代えて、点滅する光源の点灯開始タイミングをすべて同期させ、消灯するタイミングを順次ずらすようにしてもよい。例えば、第１光源３１Ａ～第３光源３１Ｃが同時に点灯し、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃの順に、時間をおいて消灯する。このようにしても、複数の光源が同時に点灯している状態から、一方向に光の流れが減衰していくように使用者に視認され、使用者は光の流れを認識しやすくなる。また、点滅する光源が点灯を開始するタイミング及び消灯するタイミングをともにずらしてもよい。具体的には、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃが、時間をおいて順次点灯し、これら３つの光源が同時に点灯している期間を設ける。その後、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃの順に、時間をおいて消灯する。このようにすると、一方向の流れの光が増幅していき、その後同じ方向の流れで光が減衰していくように使用者に視認され、使用者は光の流れを認識しやすくなる。 FIG. 13 shows an example in which the timing at which the blinking light source starts lighting is shifted. Alternatively, all the lighting start timings of the blinking light source may be synchronized, and the timing of turning off the light source may be sequentially shifted. Good. For example, the first light source 31A to the third light source 31C are turned on at the same time, and are turned off after a certain time in the order of the first light source 31A, the second light source 31B, and the third light source 31C. Even in this case, from the state in which the plurality of light sources are turned on at the same time, the user can visually recognize the light flow to be attenuated in one direction, and the user can easily recognize the light flow. Further, the timing at which the blinking light source starts lighting and the timing at which the blinking light source turns off may be shifted. Specifically, the first light source 31A, the second light source 31B, and the third light source 31C are sequentially turned on after a certain time, and a period is provided in which these three light sources are simultaneously turned on. Thereafter, the first light source 31A, the second light source 31B, and the third light source 31C are turned off after a certain time. In this way, the light in one direction flows is amplified, and thereafter, the light is visually recognized by the user as attenuating in the same direction, and the user can easily recognize the light flow.
実施の形態２．
　本実施の形態では、透過部３２の形状及び配置並びに光源の配置を説明する。透過部３２の形状及び配置並びに光源の配置以外の構成については、実施の形態１と同様であるので、本実施の形態では実施の形態１との相違点を中心に説明する。 Embodiment 2 FIG.
In the present embodiment, the shape and arrangement of the transmission unit 32 and the arrangement of the light source will be described. Since the configuration other than the shape and arrangement of the transmissive portion 32 and the arrangement of the light sources are the same as those of the first embodiment, the present embodiment will be described focusing on the differences from the first embodiment.
　図１４は、実施の形態２に係るトッププレート３の概略平面図である。本実施の形態の透過部３２は、加熱口２０ごとに加熱口２０の外側に設けられている点では実施の形態１と同じである。本実施の形態の透過部３２の全体形状は、加熱口２０から操作表示部６に近づく方向に向かって延びている点で、実施の形態１と異なる。 FIG. 14 is a schematic plan view of the top plate 3 according to the second embodiment. The transmission section 32 of the present embodiment is the same as that of the first embodiment in that the transmission section 32 is provided outside the heating port 20 for each heating port 20. The overall shape of the transmission section 32 of the present embodiment is different from that of the first embodiment in that the transmission section 32 extends from the heating port 20 in a direction approaching the operation display section 6.
　本実施の形態の透過部３２に含まれる第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄは、この順で、操作表示部６から離れる方向に沿った直線上に配置されている。透過部３２の全体形状は、二等辺三角形であり、その頂角が底角よりも操作表示部６に近い位置にある。三角形の第１透過部３２Ａと、台形の第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄとで、三角形を形作っている。操作表示部６から最も離れた位置にある第４透過部３２Ｄの左右の幅が最も長く、操作表示部６に最も近い位置にある第１透過部３２Ａの左右の幅が最も短い。 The first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D included in the transmitting portion 32 of the present embodiment extend in the order away from the operation display unit 6 in this order. They are arranged on a straight line. The overall shape of the transmission unit 32 is an isosceles triangle, and the apex angle is closer to the operation display unit 6 than the base angle. A triangle is formed by the triangular first transmitting portion 32A and the trapezoidal second transmitting portion 32B, third transmitting portion 32C, and fourth transmitting portion 32D. The left and right widths of the fourth transmission part 32D located farthest from the operation display part 6 are the longest, and the left and right widths of the first transmission part 32A located closest to the operation display part 6 are the shortest.
　図１４では、トッププレート３の下側に配置される第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄを、破線で示している。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、実施の形態１で述べたものと同様の基本構成を有する。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、発する光が透過部３２を透過する位置に、設けられている。好ましくは、複数の光源は、平面視において透過部３２と重なる位置に配置されている。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、この順で、操作表示部６から離れる方向に沿った直線上に配置されている。図１４では、透過部３２を構成する複数の透過部と同数（本実施の形態では４つ）の光源を設け、この複数の光源を、複数の透過部のうち対応するものと平面視において重なる位置に配置した例を示している。しかし、一つの透過部に対して複数の光源が配置されていてもよい。 In FIG. 14, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D arranged below the top plate 3 are indicated by broken lines. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have the same basic configuration as that described in the first embodiment. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are provided at positions where emitted light passes through the transmission unit 32. Preferably, the plurality of light sources are arranged at positions overlapping with the transmission part 32 in plan view. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are arranged on a straight line along the direction away from the operation display unit 6 in this order. In FIG. 14, the same number of light sources (four in this embodiment) as the plurality of transmissive portions constituting the transmissive portion 32 are provided, and the plurality of light sources overlap the corresponding one of the plurality of transmissive portions in plan view. An example in which they are arranged at positions is shown. However, a plurality of light sources may be arranged for one transmission part.
　第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、実施の形態１の点灯制御例に示されたように、点灯制御される。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄが点灯すると、光源からの光が透過部３２を透過して、透過した光が使用者に視認される。 The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are controlled to be turned on as described in the lighting control example of the first embodiment. When the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are turned on, light from the light source is transmitted through the transmission unit 32, and the transmitted light is visually recognized by the user.
　本実施の形態によれば、操作表示部６に対面する位置において加熱調理器１を扱う使用者に、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄからの光が視認されやすくなる。このため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 According to the present embodiment, light from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D is provided to a user who handles the cooking device 1 at a position facing the operation display unit 6. It becomes easier to see. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
　また、本実施の形態によれば、実施の形態１と同様の効果を得ることができる。また、本実施の形態によれば、第１光源３１Ａ～第４光源３１Ｄを、高温になる加熱源から離れた位置に配置しやすい。このため、熱による第１光源３１Ａ～第４光源３１Ｄの劣化が抑制され、第１光源３１Ａ～第４光源３１Ｄの耐久性を向上させることができる。第１光源３１Ａ～第４光源３１Ｄの耐久性が向上することで、第１光源３１Ａ～第４光源３１Ｄのために設けられる耐熱構造を簡素化でき、加熱調理器１の材料費を削減することができる。 According to the present embodiment, the same effect as in the first embodiment can be obtained. Further, according to the present embodiment, first light source 31A to fourth light source 31D can be easily arranged at a position distant from the heating source that becomes hot. Therefore, deterioration of the first light source 31A to the fourth light source 31D due to heat is suppressed, and the durability of the first light source 31A to the fourth light source 31D can be improved. By improving the durability of the first light source 31A to the fourth light source 31D, the heat-resistant structure provided for the first light source 31A to the fourth light source 31D can be simplified, and the material cost of the cooking device 1 can be reduced. Can be.
実施の形態３．
　本実施の形態では、透過部３２の形状及び配置並びに光源の配置を説明する。透過部３２の形状及び配置並びに光源の配置以外の構成については、実施の形態１と同様であるので、本実施の形態では実施の形態１との相違点を中心に説明する。 Embodiment 3 FIG.
In the present embodiment, the shape and arrangement of the transmission unit 32 and the arrangement of the light source will be described. Since the configuration other than the shape and arrangement of the transmissive portion 32 and the arrangement of the light sources are the same as those of the first embodiment, the present embodiment will be described focusing on the differences from the first embodiment.
　図１５は、実施の形態３に係るトッププレート３の概略平面図である。本実施の形態の透過部３２は、加熱口２０ごとに加熱口２０の外側に設けられている点では実施の形態１と同じである。本実施の形態の透過部３２の全体形状は、トッププレート３の幅方向に沿って延びている点で、実施の形態１と異なる。 FIG. 15 is a schematic plan view of the top plate 3 according to the third embodiment. The transmission section 32 of the present embodiment is the same as that of the first embodiment in that the transmission section 32 is provided outside the heating port 20 for each heating port 20. The overall shape of the transmission section 32 of the present embodiment is different from that of the first embodiment in that it extends along the width direction of the top plate 3.
　本実施の形態の透過部３２に含まれる第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄは、この順で、トッププレート３の幅方向に沿った直線上に、左から右に向かって配置されている。第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ及び第４透過部３２Ｄは、平面形状が矩形であり、透過部３２の矩形の全体形状を形作っている。 The first transmitting part 32A, the second transmitting part 32B, the third transmitting part 32C, and the fourth transmitting part 32D included in the transmitting part 32 of the present embodiment are straight lines along the width direction of the top plate 3 in this order. At the top, from left to right. The first transmitting portion 32A, the second transmitting portion 32B, the third transmitting portion 32C, and the fourth transmitting portion 32D have a rectangular planar shape, and form the entire rectangular shape of the transmitting portion 32.
　図１５では、トッププレート３の下側に配置される第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄを、破線で示している。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、実施の形態１で述べたものと同様の基本構成を有する。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、発する光が透過部３２を透過する位置に、設けられている。好ましくは、複数の光源は、平面視において透過部３２と重なる位置に配置されている。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、この順で、トッププレート３の幅方向に沿った直線上に、左から右に向かって配置されている。図１５では、透過部３２を構成する複数の透過部と同数（本実施の形態では４つ）の光源を設け、この複数の光源を、複数の透過部のうち対応するものと平面視において重なる位置に配置した例を示している。しかし、一つの透過部に対して複数の光源が配置されていてもよい。 In FIG. 15, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D arranged below the top plate 3 are indicated by broken lines. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have the same basic configuration as that described in the first embodiment. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are provided at positions where emitted light passes through the transmission unit 32. Preferably, the plurality of light sources are arranged at positions overlapping with the transmission part 32 in plan view. The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are arranged in this order on a straight line along the width direction of the top plate 3 from left to right. In FIG. 15, the same number (four in this embodiment) of light sources as the plurality of transmissive portions constituting the transmissive portion 32 are provided, and the plurality of light sources overlap in plan view with the corresponding one of the plurality of transmissive portions. An example in which they are arranged at positions is shown. However, a plurality of light sources may be arranged for one transmission part.
　第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、実施の形態１の点灯制御例に示されたように、点灯制御される。第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄが点灯すると、光源からの光が透過部３２を透過して、透過した光が使用者に視認される。 The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are controlled to be turned on as described in the lighting control example of the first embodiment. When the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D are turned on, light from the light source is transmitted through the transmission unit 32, and the transmitted light is visually recognized by the user.
　本実施の形態によれば、実施の形態１と同様の効果を得ることができる。なお、図１５で示した第１光源３１Ａ～第４光源３１Ｄ及び第１透過部３２Ａ～第４透過部３２Ｄを、左右反転させて配置してもよい。 According to the present embodiment, the same effect as in the first embodiment can be obtained. The first light source 31A to the fourth light source 31D and the first transmission part 32A to the fourth transmission part 32D shown in FIG.
実施の形態４．
　本実施の形態では、透過部３２から出射される光の属性の例を説明する。本実施の形態では、実施の形態１との相違点を中心に説明する。 Embodiment 4 FIG.
In the present embodiment, an example of the attribute of light emitted from the transmission unit 32 will be described. In the present embodiment, a description will be given focusing on differences from the first embodiment.
　図１６は、実施の形態４に係る透過部及び複数の光源を説明する図である。図１６では、透過部３２の下側に配置される第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄを、破線で示している。本実施の形態の第１光源３１Ａ～第４光源３１Ｄは、この順に、出射する光の波長が長い。複数の光源から出射される光の波長を異ならせることで、光の色相を異ならせ、透過部３２から出る色相の異なる光を使用者に視認させる。例えば、第１光源３１Ａは黄色、第２光源３１Ｂはオレンジ色、第３光源３１Ｃは朱色、第４光源３１Ｄは赤色の光を出射する。そのほか、波長の異なる２種類の光を発する光源を、交互に配置してもよい。図４で示した点灯制御例１と組み合わされた場合、加熱源の出力が小さい場合には、第１光源３１Ａから相対的に波長の短い光が出射される。そして、加熱源の出力の増大に伴って、第２光源３１Ｂ、第３光源３１Ｃ、第４光源３１Ｄの順で波長の長い光が出射されるようになる。 FIG. 16 is a diagram illustrating a transmission unit and a plurality of light sources according to the fourth embodiment. In FIG. 16, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D arranged below the transmission unit 32 are indicated by broken lines. The first light source 31A to the fourth light source 31D of the present embodiment emit light having a longer wavelength in this order. By making the wavelengths of the light emitted from the plurality of light sources different, the hue of the light is made different, and the light having a different hue emitted from the transmission section 32 is visually recognized by the user. For example, the first light source 31A emits yellow light, the second light source 31B emits orange light, the third light source 31C emits red, and the fourth light source 31D emits red light. In addition, light sources that emit two types of light having different wavelengths may be arranged alternately. When combined with the lighting control example 1 shown in FIG. 4, when the output of the heating source is small, light having a relatively short wavelength is emitted from the first light source 31A. Then, as the output of the heating source increases, light having a longer wavelength is emitted in the order of the second light source 31B, the third light source 31C, and the fourth light source 31D.
　第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄが、出射する光の波長の異なる複数の発光素子を有していてもよい。例えば、一つの光源である第１光源３１Ａが、発光色の異なる複数の発光素子を備える。そして、第１光源３１Ａに設けられた複数の発光素子のうちの一つ以上から、同時に光を出射させる。そうすると、光を出射する発光素子の組み合わせによって、透過部３２から出射され使用者に視認される光の色（ＲＧＢ）を異ならせることができる。例えば、第１光源３１Ａからは青色、第２光源３１Ｂからは緑色、第３光源３１Ｃからは橙色、第４光源３１Ｄからは赤色の光を出射する。 The first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D may include a plurality of light emitting elements having different wavelengths of emitted light. For example, the first light source 31A, which is one light source, includes a plurality of light emitting elements having different emission colors. Then, light is simultaneously emitted from one or more of the plurality of light emitting elements provided in the first light source 31A. Then, the color (RGB) of the light emitted from the transmission section 32 and visually recognized by the user can be changed depending on the combination of the light emitting elements that emit the light. For example, blue light is emitted from the first light source 31A, green light is emitted from the second light source 31B, orange light is emitted from the third light source 31C, and red light is emitted from the fourth light source 31D.
　第１光源３１Ａ～第４光源３１Ｄから出射される光の波長を異ならせることに代えて、あるいはこれに加えて、第１透過部３２Ａ～第４透過部３２Ｄの色を異ならせてもよい。例えば、第１透過部３２Ａ～第４透過部３２Ｄを、着色された透明部材とする。第１光源３１Ａ～第４光源３１Ｄが、単一色、例えば白色の光を出射すると、出射された光は、第１透過部３２Ａ～第４透過部３２Ｄを透過する過程において屈折し、第１透過部３２Ａ～第４透過部３２Ｄの色に応じた色の光として、使用者に認識される。 代 え Instead of or in addition to changing the wavelength of the light emitted from the first light source 31A to the fourth light source 31D, the colors of the first transmitting portion 32A to the fourth transmitting portion 32D may be different. For example, the first transmitting part 32A to the fourth transmitting part 32D are colored transparent members. When the first light source 31A to the fourth light source 31D emit light of a single color, for example, white light, the emitted light is refracted in the process of transmitting through the first transmission portion 32A to the fourth transmission portion 32D, and the first transmission light is transmitted. The light is recognized by the user as light of a color corresponding to the colors of the portions 32A to 32D.
　第１光源３１Ａ～第４光源３１Ｄから出射される光の波長を異ならせること及び第１透過部３２Ａ～第４透過部３２Ｄの色を異ならせることに代えて、あるいはこれに加えて、第１透過部３２Ａ～第４透過部３２Ｄの光の透過率を異ならせてもよい。例えば、第１透過部３２Ａ、第２透過部３２Ｂ、第３透過部３２Ｃ、第４透過部３２Ｄの順に、光の透過量を多くするものである。具体的には、透過部３２の表面又は裏面にガラス系無機質、熱硬化型樹脂または紫外線硬化型樹脂等で構成された塗料を用いて印刷を施す。そして、この印刷の塗装の密度を変更することで、光の透過率を変更することができる。なお、印刷に用いられる塗料は、上記に限らず、比較的高い剛性と低い脆性を持ち、有害物質を含まない素材であれば、広範な材料を用いることができる。 Instead of, or in addition to, changing the wavelength of the light emitted from the first light source 31A to the fourth light source 31D and changing the color of the first transmission part 32A to the fourth transmission part 32D, the first The light transmittances of the transmission part 32A to the fourth transmission part 32D may be different. For example, the amount of light transmission is increased in the order of the first transmission part 32A, the second transmission part 32B, the third transmission part 32C, and the fourth transmission part 32D. Specifically, printing is performed on the front surface or the back surface of the transmission portion 32 using a paint made of a glass-based inorganic material, a thermosetting resin, an ultraviolet-curable resin, or the like. The transmittance of light can be changed by changing the density of the coating for printing. The paint used for printing is not limited to the above, and a wide range of materials can be used as long as they have relatively high rigidity and low brittleness and do not contain harmful substances.
　このように本実施の形態によれば、色相の異なる光を使用者に視認させることができる。このため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 According to the present embodiment, light of different hues can be visually recognized by the user. For this reason, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D can be clearly recognized by the user.
実施の形態５．
　本実施の形態では、複数の光源ごとに、出射する光の輝度を異ならせる例を説明する。本実施の形態では、実施の形態１との相違点を中心に説明する。 Embodiment 5 FIG.
In this embodiment, an example in which the luminance of emitted light is different for each of a plurality of light sources will be described. In the present embodiment, a description will be given focusing on differences from the first embodiment.
　図１７は、実施の形態５に係る光源の点灯制御例を説明するタイミングチャートである。図１７において縦軸は、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄから出射される光の輝度の大きさを、簡易的に示している。 FIG. 17 is a timing chart illustrating an example of lighting control of the light source according to the fifth embodiment. In FIG. 17, the vertical axis schematically indicates the magnitude of the luminance of light emitted from the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D.
　図１７に示すように、第１光源３１Ａ、第２光源３１Ｂ、第３光源３１Ｃ及び第４光源３１Ｄは、この順で、出射する光の輝度が高い。このような構成とすることで、色覚に障害があって異なる色相の光を識別するのが困難な使用者にとっても、各光源が出射する光の違いを認識しやすい。例えば、先天性疾患に多く見られる、赤緑色覚異常の使用者にとって、青と緑と橙という色相の異なる色の光が出射されたとしても、それらを区別することが難しい。しかし本実施の形態によれば、複数の光源から出射される光の輝度が異なるため、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 よ う As shown in FIG. 17, the first light source 31A, the second light source 31B, the third light source 31C, and the fourth light source 31D have higher luminance of emitted light in this order. With such a configuration, even a user who has difficulty in distinguishing light of different hues due to color vision impairment can easily recognize a difference in light emitted from each light source. For example, it is difficult for a user with red-green color deficiency, which is often seen in congenital diseases, to distinguish between lights having different colors of blue, green, and orange even if emitted. However, according to the present embodiment, since the brightness of the light emitted from the plurality of light sources is different, information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D is transmitted by the user. Can be clearly recognized.
実施の形態６．
　本実施の形態では、透過部３２から出射される光の色を使用者が選択できる構成とした点で、実施の形態１と異なる。本実施の形態は、実施の形態１との相違点を中心に説明する。 Embodiment 6 FIG.
The present embodiment is different from the first embodiment in that the user can select the color of the light emitted from the transmission unit 32. The present embodiment will be described with a focus on differences from the first embodiment.
　図１８は、実施の形態６に係るトッププレート３の概略平面図である。本実施の形態の加熱調理器１では、透過部３２から出射される光の色を設定する設定部３３を備える。設定部３３は、例えばタッチパネル又は押圧式のボタンなど、色の設定の入力を受け付けるインタフェースである。図１８では設定部３３を加熱調理器１の上面に設けた例を示しているが、設定部３３の位置は図示のものに限定されない。 FIG. 18 is a schematic plan view of the top plate 3 according to the sixth embodiment. The heating cooker 1 of the present embodiment includes a setting unit 33 that sets the color of light emitted from the transmission unit 32. The setting unit 33 is an interface that receives an input of a color setting, such as a touch panel or a press-type button. FIG. 18 illustrates an example in which the setting unit 33 is provided on the upper surface of the cooking device 1, but the position of the setting unit 33 is not limited to the illustrated one.
　トッププレート３が黒色の場合であって、透過部３２から出射される光の色が赤色であると、赤緑色覚に障害のある使用者にとっては、出射された光が濃いグレーにしか見えない。そうすると、透過部３２から出射される光を用いて伝達される火力などの情報は、使用者にとって認識が難しいものとなる。このような場合には、使用者は、設定部３３を用いて透過部３２から出射される光の色を設定する。制御部１４は、設定部３３での設定に基づいて、複数の光源から出射される光の色を変化させる。赤緑色覚に障害のある使用者にとっては、透過部３２から出射される光の色が、白成分を有する色、特に白色、白成分の強い色であるいわゆるパステル色、又は黄色であると、出射された光を認識しやすい。このため、トッププレート３が黒色である場合には、設定部３３で設定できる色として、白成分を有する色を設けておくとよい。各光源は、発光色を変更可能な一つの発光素子を備えているか、あるいは互いに異なる色の光を出射する複数の発光素子を備えている。この場合、異なる色の光を出射する複数の発光素子を、発光部３０の制御回路が個別に点灯又は消灯させることで、一つの光源から出射される光の色を変えることができる。 When the top plate 3 is black and the color of the light emitted from the transmission part 32 is red, the emitted light appears only to dark gray for a user with a red-green color impairment. . Then, the information such as the heating power transmitted using the light emitted from the transmission unit 32 becomes difficult for the user to recognize. In such a case, the user uses the setting unit 33 to set the color of the light emitted from the transmission unit 32. The control unit 14 changes the color of the light emitted from the plurality of light sources based on the setting in the setting unit 33. For a user with red-green color impairment, if the color of the light emitted from the transmission part 32 is a color having a white component, particularly white, a so-called pastel color that is a strong color of the white component, or yellow, It is easy to recognize the emitted light. Therefore, when the top plate 3 is black, a color having a white component is preferably provided as a color that can be set by the setting unit 33. Each light source includes one light-emitting element that can change the emission color, or includes a plurality of light-emitting elements that emit light of different colors. In this case, the color of the light emitted from one light source can be changed by individually turning on or off the plurality of light emitting elements that emit light of different colors by the control circuit of the light emitting unit 30.
　トッププレート３が白色又は白色に近い色の場合には、透過部３２から出射される光の色が、白色、黄色、又はパステル色等の白成分が強い色であると、使用者にとって、透過部３２から出射される光を視認しづらい。このような場合には、使用者は、設定部３３を用いて透過部３２から出射される光の色を設定する。制御部１４は、設定部３３での設定に基づいて、複数の光源から出射される光の色を変化させる。設定部３３で設定できる色として、赤、青、緑の三原色、あるいはこれに近似した色を設けておくとよい。 In the case where the top plate 3 is white or a color close to white, if the color of the light emitted from the transmission portion 32 is a color in which white components such as white, yellow, and pastel are strong, the transmission to the user is made. Light emitted from the part 32 is difficult to see. In such a case, the user uses the setting unit 33 to set the color of the light emitted from the transmission unit 32. The control unit 14 changes the color of the light emitted from the plurality of light sources based on the setting in the setting unit 33. As the colors that can be set by the setting unit 33, it is preferable to provide three primary colors of red, blue, and green, or colors similar thereto.
　本実施の形態によれば、加熱調理器１を使用する使用者が、透過部３２から出射される光の色を選択することができる。このため、使用者が、自身の色覚に適した色を、設定部３３を用いて設定することで、透過部３２から出射される光を使用者が認識しやすくなる。 According to the present embodiment, a user using the cooking device 1 can select a color of light emitted from the transmission unit 32. For this reason, by setting the color suitable for the user's own color vision using the setting unit 33, the user can easily recognize the light emitted from the transmission unit 32.
　なお、上記した複数の実施の形態およびその変形例のうちの２以上が、互いに組み合わせて用いられうる。このようにすることで、第１光源３１Ａ～第４光源３１Ｄからの光を用いて伝達される火力などの情報を、使用者により明確に認識させることができる。 Note that two or more of the above-described embodiments and modifications thereof may be used in combination with each other. By doing so, the user can clearly recognize the information such as the heating power transmitted using the light from the first light source 31A to the fourth light source 31D.
　また、上記した実施の形態に加えて、発光部３０に設けられる複数の光源を、文字又は記号を表現するように配置してもよい。このように配置した複数の光源を、文字又は記号のまとまりで一つの光源として扱って、上記実施の形態で述べたような点灯制御を行う。このようにすることで、文字又は記号として視認される光が一方向に流れているように使用者に認識させることができる。たとえば、複数の光源を環状に配置し、この環状に配置された光源の組を複数設ける。そして、環状に配置された複数の光源を一つの光源として扱われて点灯制御されることで、環状の光が一方向に流れているように使用者に認識させることができる。 In addition, in addition to the above-described embodiment, a plurality of light sources provided in the light emitting unit 30 may be arranged so as to express characters or symbols. The plurality of light sources thus arranged are treated as one light source in a group of characters or symbols, and the lighting control as described in the above embodiment is performed. By doing so, it is possible for the user to recognize that the light visually recognized as a character or a symbol is flowing in one direction. For example, a plurality of light sources are arranged in a ring, and a plurality of sets of light sources arranged in the ring are provided. The plurality of light sources arranged in a ring are treated as one light source and lighting control is performed, so that the user can be recognized as if the ring-shaped light is flowing in one direction.
　また、発光部３０に設けられる複数の光源を、マトリクス状に配置してもよい。そして、マトリクス状に配置した複数の光源を、文字又は記号を表すまとまりで一つの光源として扱って、上記実施の形態で述べたような点灯制御を行う。このようにすることで、文字又は記号として視認される光が一方向に流れているように使用者に認識させることができる。 The plurality of light sources provided in the light emitting unit 30 may be arranged in a matrix. Then, the plurality of light sources arranged in a matrix are treated as one light source in a group representing characters or symbols, and the lighting control as described in the above embodiment is performed. By doing so, it is possible for the user to recognize that the light visually recognized as a character or a symbol is flowing in one direction.
　１　加熱調理器、２　本体、３　トッププレート、４　加熱コイル、５　前面操作部、６　操作表示部、９　コイルベース、１０　フェライトコア、１１　赤外線センサ、１２　接触式温度センサ、１３　温度検出部、１４　制御部、１５　インバータ、１６　透過窓、２０　加熱口、３０　発光部、３１Ａ　第１光源、３１Ｂ　第２光源、３１Ｃ　第３光源、３１Ｄ　第４光源、３２　透過部、３２Ａ　第１透過部、３２Ｂ　第２透過部、３２Ｃ　第３透過部、３２Ｄ　第４透過部、３３　設定部、１１０　センサケース、２００　商用電源、３００　調理容器。 1 cooker, 2 body, 3 top plate, 4 heating coil, 5 front operation unit, 6 operation display unit, 9 coil base, 10 ferrite core, 11 infrared sensor, 12 contact temperature sensor, 13 temperature detection unit, 14 Control unit, 15 inverter, 16 transmission window, 20 heating port, 30 light emitting unit, 31A first light source, 31B second light source, 31C third light source, 31D fourth light source, 32 transmission unit, 32A first transmission unit, 32B 2 transmission part, 32C {third transmission part, 32D} fourth transmission part, 33} setting part, 110 sensor case, 200 commercial power supply, 300 cooking vessel.

Claims (20)

  1. 　調理容器が載置されるトッププレートと、
    　前記トッププレートの下に設けられた加熱源と、
    　前記トッププレートに設けられ、前記調理容器が載置される位置を示す加熱口と、
    　前記トッププレートの下に設けられ、独立して制御される複数の光源と、
    　前記トッププレートの前記加熱口の外側に設けられ、前記複数の光源から出射される光が透過する透過部とを備え、
    　前記加熱源が動作しているときに、前記トッププレートの表面と平行な方向に沿った一方向の流れの光が前記透過部から出射されるように、前記複数の光源のうち光を出射する一以上の光源が連続的に変化するように構成されている
    　加熱調理器。     A top plate on which the cooking container is placed,
    A heating source provided below the top plate,
    A heating port provided on the top plate and indicating a position where the cooking container is placed,
    A plurality of light sources provided below the top plate and independently controlled,
    A transmission unit provided outside the heating port of the top plate and transmitting light emitted from the plurality of light sources,
    When the heating source is operating, light is emitted from the plurality of light sources so that light in one direction flowing along a direction parallel to the surface of the top plate is emitted from the transmission unit. A cooker in which one or more light sources are configured to change continuously.
  2. 　前記加熱源の出力が大きいほど、前記光を出射する光源の数が増加するように構成されている
    　請求項１記載の加熱調理器。     The heating cooker according to claim 1, wherein the number of light sources that emit the light increases as the output of the heating source increases.
  3. 　前記加熱源の出力が変化したときに、前記複数の光源が同期して点滅する
    　請求項１又は請求項２に記載の加熱調理器。     The heating cooker according to claim 1, wherein the plurality of light sources blink in synchronization when an output of the heating source changes.
  4. 　前記加熱源が動作しているときに、前記複数の光源の一以上が点滅し、前記加熱源の出力が変化したときに、前記複数の光源のうち点滅する光源の数が維持されたまま、点滅する前記光源の点滅の周期が変化する
    　請求項１～請求項３のいずれか一項に記載の加熱調理器。     When the heating source is operating, one or more of the plurality of light sources blink, and when the output of the heating source changes, the number of blinking light sources among the plurality of light sources is maintained, The heating cooker according to any one of claims 1 to 3, wherein a cycle of blinking of the blinking light source changes.
  5. 　前記複数の光源は、第１方向に沿って順に配置された第１光源と、第２光源と、第３光源とを含み、
    　前記加熱源が動作しているときに、前記第１方向又は前記第１方向と逆方向に沿った順序で、前記第１光源、前記第２光源及び前記第３光源が順次点滅し、かつ前記第１光源、前記第２光源及び前記第３光源の点滅がループするように繰り返される
    　請求項１～請求項４のいずれか一項に記載の加熱調理器。     The plurality of light sources include a first light source, a second light source, and a third light source arranged in order along a first direction,
    When the heating source is operating, the first light source, the second light source, and the third light source sequentially blink in the order along the first direction or the direction opposite to the first direction, and the The heating cooker according to any one of claims 1 to 4, wherein blinking of the first light source, the second light source, and the third light source is repeated in a loop.
  6. 　前記複数の光源は、前記加熱口の中心から外側に向かう方向に沿った直線上に配置されている
    　請求項１～請求項５のいずれか一項に記載の加熱調理器。     The heating cooker according to any one of claims 1 to 5, wherein the plurality of light sources are arranged on a straight line extending from a center of the heating port toward an outside.
  7. 　前記加熱調理器の上面に設けられ、前記加熱源の出力を設定する操作部を備え、
    　前記複数の光源は、前記操作部から離れる方向に沿った直線上に配置されている
    　請求項１～請求項５のいずれか一項に記載の加熱調理器。     An operation unit that is provided on an upper surface of the cooking device and sets an output of the heating source,
    The heating cooker according to any one of claims 1 to 5, wherein the plurality of light sources are arranged on a straight line along a direction away from the operation unit.
  8. 　前記複数の光源は、前記トッププレートの幅方向に沿った直線上に配置されている
    　請求項１～請求項５のいずれか一項に記載の加熱調理器。     The heating cooker according to any one of claims 1 to 5, wherein the plurality of light sources are arranged on a straight line along a width direction of the top plate.
  9. 　前記複数の光源は、第１光源と第２光源とを含み、
    　前記加熱源が動作しているときに、前記第１光源と前記第２光源とが、それぞれに固有の周期で点滅を繰り返し、前記第１光源が点灯してから前記第２光源が点灯するまでの期間と、前記第２光源が点灯してから次に前記第１光源が点灯するまでの期間とが、異なる
    　請求項１～請求項３のいずれか一項に記載の加熱調理器。     The plurality of light sources include a first light source and a second light source,
    When the heating source is operating, the first light source and the second light source repeat blinking at a cycle peculiar to each, and from when the first light source is turned on until the second light source is turned on. The heating cooker according to any one of claims 1 to 3, wherein a period from when the second light source is turned on to when the first light source is turned on next is different.
  10. 　前記透過部は、第１透過部と第２透過部とを含み、
    　前記第２透過部は、前記第１透過部よりも前記加熱口から外側へ離れた位置に配置されている
    　請求項１～請求項９のいずれか一項に記載の加熱調理器。     The transmission unit includes a first transmission unit and a second transmission unit,
    The heating cooker according to any one of claims 1 to 9, wherein the second transmission unit is disposed at a position further outside the heating port than the first transmission unit.
  11. 　前記透過部は、第１透過部と第２透過部とを含み、
    　前記第１透過部及び前記第２透過部は、平面形状が円弧形状であり、
    　前記第２透過部は、前記第１透過部よりも前記加熱口から外側へ離れた位置に配置されており、前記第２透過部の円弧の長さは、前記第１透過部の円弧の長さよりも長い
    　請求項１～請求項９のいずれか一項に記載の加熱調理器。     The transmission unit includes a first transmission unit and a second transmission unit,
    The first transmitting portion and the second transmitting portion have a planar shape of an arc shape,
    The second transmission portion is disposed at a position further away from the heating port than the first transmission portion, and the length of the arc of the second transmission portion is equal to the length of the arc of the first transmission portion. The heating cooker according to any one of claims 1 to 9, which is longer than the heat cooker.
  12. 　前記透過部は、第１透過部と第２透過部とを含み、
    　前記第２透過部は、前記第１透過部よりも前記加熱口から外側へ離れた位置に配置されており、
    　前記加熱口の中心から外側に向かう方向における前記第２透過部の長さは、前記加熱口の中心から外側に向かう方向における前記第１透過部の長さよりも長い
    　請求項１～請求項９のいずれか一項に記載の加熱調理器。     The transmission unit includes a first transmission unit and a second transmission unit,
    The second transmission unit is disposed at a position further outward from the heating port than the first transmission unit,
    10. The length of the second transmitting portion in a direction going outward from the center of the heating port is longer than the length of the first transmitting portion in a direction going outward from the center of the heating port. A heating cooker according to any one of the preceding claims.
  13. 　前記加熱源の出力、前記調理容器の温度、及び前記トッププレートの温度の少なくともいずれかに基づいて、前記複数の光源が点滅する周期が異なる
    　請求項１～請求項１２のいずれか一項に記載の加熱調理器。     The method according to any one of claims 1 to 12, wherein a cycle at which the plurality of light sources blinks is different based on at least one of an output of the heating source, a temperature of the cooking vessel, and a temperature of the top plate. Heating cooker.
  14. 　前記加熱源の出力、前記調理容器の温度、及び前記トッププレートの温度の少なくともいずれかに基づいて、前記複数の光源の輝度が異なる
    　請求項１～請求項１２のいずれか一項に記載の加熱調理器。     The heating according to any one of claims 1 to 12, wherein the brightness of the plurality of light sources is different based on at least one of an output of the heating source, a temperature of the cooking vessel, and a temperature of the top plate. Cooking device.
  15. 　前記透過部は、複数の透過部を含み、
    　前記複数の透過部から出る光は、色相、波長、及び輝度の少なくともいずれかが互いに異なる
    　請求項１～請求項１４のいずれか一項に記載の加熱調理器。     The transmission unit includes a plurality of transmission units,
    The heating cooker according to any one of claims 1 to 14, wherein the light emitted from the plurality of transmissive portions has at least one of a hue, a wavelength, and a luminance different from each other.
  16. 　前記透過部は、光の透過率が異なる複数の前記透過部を含む
    　請求項１～請求項１５のいずれか一項に記載の加熱調理器。     The heating cooker according to any one of claims 1 to 15, wherein the transmission unit includes a plurality of the transmission units having different light transmittances.
  17. 　前記透過部から出る光の波長は、前記加熱源の出力が小さい場合よりも大きい場合の方が長い
    　請求項１～請求項１５のいずれか一項に記載の加熱調理器。     The heating cooker according to any one of claims 1 to 15, wherein a wavelength of the light emitted from the transmission unit is longer when the output of the heating source is large than when the output of the heating source is small.
  18. 　前記透過部から出る光の輝度は、前記加熱源の出力が小さい場合よりも大きい場合の方が大きい
    　請求項１～請求項１６のいずれか一項に記載の加熱調理器。     The heating cooker according to any one of claims 1 to 16, wherein the brightness of the light emitted from the transmission unit is higher when the output of the heating source is higher than when the output of the heating source is lower.
  19. 　前記複数の光源が出射する光の色相を設定する設定部を備え、
    　前記設定部の設定に基づいて、前記複数の光源が出射する光の色相が変更される
    　請求項１～請求項１８のいずれか一項に記載の加熱調理器。     A setting unit that sets a hue of light emitted by the plurality of light sources,
    The heating cooker according to any one of claims 1 to 18, wherein a hue of light emitted from the plurality of light sources is changed based on a setting of the setting unit.
  20. 　前記トッププレートが黒色であって、前記透過部から出る光が白成分を有する、又は、
    　前記トッププレートが白成分を有する色であって、前記透過部から出る光が赤、青及び緑の三原色のいずれかである、
    　請求項１～請求項１３のいずれか一項に記載の加熱調理器。     The top plate is black, and light emitted from the transmission unit has a white component, or
    The top plate is a color having a white component, and light emitted from the transmission unit is one of three primary colors of red, blue, and green.
    The heating cooker according to any one of claims 1 to 13.
PCT/JP2018/026923 2018-07-18 2018-07-18 Heat-cooking device WO2020016965A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201880095052.8A CN112425261B (en) 2018-07-18 2018-07-18 Heating cooker
EP18927214.9A EP3826429B1 (en) 2018-07-18 2018-07-18 Heat-cooking device
JP2020530787A JP6937917B2 (en) 2018-07-18 2018-07-18 Cooker
PCT/JP2018/026923 WO2020016965A1 (en) 2018-07-18 2018-07-18 Heat-cooking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/026923 WO2020016965A1 (en) 2018-07-18 2018-07-18 Heat-cooking device

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WO2020016965A1 true WO2020016965A1 (en) 2020-01-23

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JP2003234167A (en) * 2002-02-07 2003-08-22 Hitachi Hometec Ltd Induction heating cooker
JP2003257601A (en) 2002-03-04 2003-09-12 Matsushita Electric Ind Co Ltd Induction cooker
JP2004039375A (en) * 2002-07-02 2004-02-05 Sanyo Electric Co Ltd Cooker
JP2005063747A (en) * 2003-08-08 2005-03-10 Toshiba Corp Heating cooker
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JPH06123428A (en) * 1992-10-07 1994-05-06 Rinnai Corp Display device in grill
JP2001336757A (en) * 2000-05-30 2001-12-07 Rinnai Corp Cooker
JP2003077627A (en) * 2001-06-21 2003-03-14 Sanyo Electric Co Ltd Cooker
JP2003234168A (en) * 2002-02-06 2003-08-22 Matsushita Electric Ind Co Ltd Induction heating cooker
JP2003234167A (en) * 2002-02-07 2003-08-22 Hitachi Hometec Ltd Induction heating cooker
JP2003257601A (en) 2002-03-04 2003-09-12 Matsushita Electric Ind Co Ltd Induction cooker
JP2004039375A (en) * 2002-07-02 2004-02-05 Sanyo Electric Co Ltd Cooker
JP2005063747A (en) * 2003-08-08 2005-03-10 Toshiba Corp Heating cooker
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EP3826429A4 (en) 2021-07-21
JP6937917B2 (en) 2021-09-22
EP3826429B1 (en) 2024-04-03
JPWO2020016965A1 (en) 2021-04-30
EP3826429A1 (en) 2021-05-26
CN112425261A (en) 2021-02-26
CN112425261B (en) 2022-12-09

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