WO2014024459A1 - Dispositif de chauffage à induction - Google Patents

Dispositif de chauffage à induction Download PDF

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Publication number
WO2014024459A1
WO2014024459A1 PCT/JP2013/004720 JP2013004720W WO2014024459A1 WO 2014024459 A1 WO2014024459 A1 WO 2014024459A1 JP 2013004720 W JP2013004720 W JP 2013004720W WO 2014024459 A1 WO2014024459 A1 WO 2014024459A1
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WO
WIPO (PCT)
Prior art keywords
heating
heated
region
induction
top plate
Prior art date
Application number
PCT/JP2013/004720
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English (en)
Japanese (ja)
Inventor
藤濤　知也
片岡　章
北泉　武
洋一 黒瀬
湊谷　純一
新山　浩次
Original Assignee
パナソニック株式会社
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.)
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Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to DE112013003978.8T priority Critical patent/DE112013003978T5/de
Publication of WO2014024459A1 publication Critical patent/WO2014024459A1/fr

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    • 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
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/05—Heating plates with pan detection means
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the present disclosure relates to an induction heating apparatus that induction-heats an object to be heated such as a metal cooking pan placed on a top plate.
  • an induction heating cooker generally used as an induction heating device, for example, one or two heating coils are arranged immediately below the top plate, and are placed on the top plate by the heating coil.
  • a metal cooking pan that is an object to be heated is heated by induction.
  • Patent Document 1 a multi-coil configuration in which a large number of heating coils are arranged directly under the top plate has been proposed (see Patent Document 1).
  • a number of heating coils laid under the top plate are arranged close to each other, and an object to be heated such as a cooking pan is placed on any position of the top plate. Even if it is placed, it has a configuration capable of induction heating.
  • Patent Document 2 Japanese translations of PCT publication No. 2008-527294
  • the heating cooker disclosed in Patent Document 2 is arranged so that a relatively small hexagonal heating unit is spread under the top plate, and a plurality of cooking pans placed on the top plate are arranged. It is the structure which heat-cookes with a heating unit.
  • a heating unit in the heating cooker disclosed in Patent Document 2 two types of heating units, a radiant heater and an induction heater, are used.
  • a honeycomb shape (hexagonal shape) is formed along the outer edge of each heating unit. ) Is provided with a lighting segment.
  • the heating cooker disclosed in Patent Document 1 has a configuration capable of induction heating regardless of the position of the object to be heated placed on the top plate. Since the position where the coil is provided is unknown, it is impossible to identify an appropriate position to be placed in order to efficiently heat the object to be heated. Has a problem.
  • the operation panel since there is an operation area of the operation panel on the top plate, when an object to be heated is placed in this operation area, naturally, the object is not heated and the object to be heated is defined as an area that can be heated. When placed so as to cover both areas of the operation area, the operation panel may be heated by the object to be heated, which has a problem in terms of safety and reliability.
  • the user can place an object to be heated in any region of the top plate and perform cooking. It is unclear whether or not the cooking operation is being performed with high efficiency. Therefore, in the induction heating device of the multi-coil configuration, the optimum position where the most efficient induction heating can be performed on the top plate is informed to the user, and the user confirms the optimum position and is optimal for the object to be heated.
  • a configuration that can easily perform induction heating is important.
  • An object of the present disclosure is to provide an induction heating device that is easy to use for a user in a multi-coil configuration in which a large number of heating coils are disposed under a top plate, and can be heated on the top plate. The area is clearly displayed to the user, and an easy-to-use heating device is constructed, and an induction heating device having high reliability and safety is shown.
  • An induction heating device includes a top plate having a region where an object to be heated can be induction-heated; A plurality of heating coils that are arranged directly below the induction-heatable region of the top plate and generate an induction magnetic field to heat the object to be heated; A light emitting unit disposed around each of the plurality of heating coils and emitting light visibly through the top plate; A heated object detector for detecting that the heated object is disposed at a substantially upper position of each of the plurality of heating coils; A heating control unit that controls an operation state of the heating coil and a light emission state of the light emitting unit based on a detection result by the object to be heated detection unit; When the object to be heated is not placed in the induction-heatable region of the top plate, the heating control unit displays the at least a part of the light-emitting unit with the induction-heatable region as a heatable region. It is configured to
  • the induction heating device clearly displays the heatable region on the top plate, and provides a heating device that is easy to use, highly reliable, and safe.
  • FIG. 3 is a plan view showing a top plate in the induction heating apparatus of the first embodiment.
  • the top view which shows many heating coils and light emission parts in the induction heating apparatus of Embodiment 1.
  • the block diagram which shows the element which comprises the display function of the heatable area
  • FIG. The top view which shows the state by which the heating possible area
  • FIG. 1 The top view which shows a state when a to-be-heated material is mounted in the top plate in the induction heating apparatus of Embodiment 1.
  • FIG. Side surface sectional drawing which showed typically the state by which the to-be-heated material is not arrange
  • FIG. 1 The top view which shows many heating coils and the light emission part in the induction heating apparatus of Embodiment 2.
  • FIG. The top view which shows the state by which the heatable area
  • the top view which shows a state when a to-be-heated material is mounted in the top plate in the induction heating apparatus of Embodiment 3.
  • the induction heating device includes a top plate having a region in which an object to be heated can be induction heated; A plurality of heating coils that are arranged directly below the induction-heatable region of the top plate and generate an induction magnetic field to heat the object to be heated; A light emitting unit disposed around each of the plurality of heating coils and emitting light visibly through the top plate; A heated object detector for detecting that the heated object is disposed at a substantially upper position of each of the plurality of heating coils; A heating control unit that controls an operation state of the heating coil and a light emission state of the light emitting unit based on a detection result by the object to be heated detection unit; When the object to be heated is not placed in the induction-heatable region of the top plate, the heating control unit displays the at least a part of the light-emitting unit with the induction-heatable region as a heatable region. It is configured to The induction heating device according to the first aspect configured as described above is a
  • the induction heating device is such that the heating control unit according to the first aspect is configured such that the object to be heated is placed when the object to be heated is placed in the heatable region of the top plate. Based on the detection result by the detection unit, the heated object is configured to cause at least a part of the light emitting unit around the heating coil disposed at a substantially upper position to emit light and display a heating region. Yes.
  • the induction heating device configured in this manner enables a user to reliably recognize a heating area for induction heating of an object to be heated, and improves the visibility of the heating area. It becomes possible to easily perform the centering operation of the object to be heated with respect to the heating region.
  • the heating control unit according to the second aspect causes the light emitting unit to display the heating region based on a detection result by the heated object detection unit.
  • the heated area is displayed by causing at least a part of the light emitting portion around the heating coil adjacent to the heating coil, which is disposed at a substantially upper position, to emit light.
  • the induction heating device of the third aspect configured as described above enables the user to reliably recognize the heating area to be induction-heated by the object to be heated, improving the visibility of the heating area, and It becomes possible to easily perform the centering operation of the object with respect to the heating region.
  • the heating control unit displays the heating region on the light emitting unit based on a detection result by the heated object detection unit.
  • the light emitting unit is configured to prohibit light emission between the adjacent heating coils in the heating coil disposed at a substantially upper position.
  • the user can recognize the heating area to be induction-heated by the object to be heated, and can easily perform a centering operation on the object to be heated. It becomes.
  • the heating control unit in the first to fourth aspects indicates the heatable region based on a detection result by the object to be heated detection unit. It is comprised so that the light emission state of a light emission part may be controlled. In the induction heating device of the fifth aspect configured as described above, the user can surely recognize the heatable region where the object to be heated is to be placed.
  • the induction heating device is the light emission in which the heating control unit in the first to fifth aspects indicates the heating region based on a detection result by the heated object detection unit. It is comprised so that the light emission state of a part may be controlled.
  • the user can surely recognize the state of the heating region where the object to be heated is placed.
  • An induction heating device includes, in the first to sixth aspects, a heating coil detection unit that detects a state of the multiple heating coils and supplies the state to the heating control unit. And Based on detection results from the object to be heated detection unit and the heating coil detection unit, the heating control unit sets a region having a drivable heating coil in the plurality of heating coils as a heatable region.
  • the light emitting unit is configured to emit light at least partially.
  • An induction heating device includes a top plate detection unit that detects the state of the top plate and supplies the state to the heating control unit in the first to seventh aspects.
  • the heating control unit is configured to set a heatable region based on detection results from the object to be heated detection unit and the top plate detection unit, and to emit at least a part of the light emitting unit in the heatable region. Has been.
  • the induction heating apparatus configured as described above, for example, when there is a region having a high temperature in the top plate, it is possible to heat a region that can be reliably induction-heated by excluding that region. Since it becomes possible to display as an area
  • the induction heating device of the ninth aspect according to the present disclosure is such that the heating control unit in the first to eighth aspects changes the light emission state of the light emitting unit after the induction heating operation for the object to be heated is started. Is configured to change.
  • the user can surely recognize the state of the heatable region or the like where the object to be heated is placed.
  • An induction heating apparatus is the heating apparatus according to any one of the first to ninth aspects, wherein the temperature of an object to be heated that is placed in the heatable region and is induction-heated is detected. It has a heated object temperature detection unit that supplies to the control unit, The heating control unit is configured to change a light emitting state of the light emitting unit based on a detection result from the heated object temperature detecting unit.
  • the temperature of the object to be heated on the top plate can be recognized to some extent, so that the user can easily use the heating device.
  • an induction heating cooker will be described, but this configuration is an exemplification, and the present invention is not limited to the configuration described in the following embodiment, and the present disclosure It includes an induction heating device having the following technical features. Further, the present invention includes appropriately combining arbitrary configurations described in the respective embodiments described below, and the combined configurations exhibit their respective effects.
  • FIG. 1 is a plan view showing a top plate on which an object to be heated such as a cooking pan is placed in the built-in type induction heating cooker that is the induction heating device according to the first embodiment of the present disclosure.
  • FIG. 2 is a plan view showing a number of heating coils and the like provided immediately below the top plate in the induction heating cooker according to the first embodiment of the present disclosure.
  • the top plate 1 in the induction heating cooker shown in FIG. 1 shows a state when the induction heating cooker is not activated.
  • the entire surface of the top plate 1 is in a non-display state with no display other than showing the frame line of the operation area 4a.
  • the said induction heating cooking appliance is not started, it is good also as a non-display state without the frame line of the operation area
  • an induction heating cooker having an aesthetic appearance can be constructed, and the commercial value can be increased.
  • FIG. 2 is an arrangement diagram showing a number of heating coils 2 and the like arranged immediately below the top plate 1.
  • the heating coil 2 is configured to be supplied with a desired high-frequency current so as to generate an induction magnetic field in order to heat an object to be heated placed on the top plate 1.
  • a plurality of heating coils 2 are arranged in a straight line in each of the vertical and horizontal rows.
  • the induction heating cooker shown in FIG. 2 as an example, a configuration is shown in which five heating coils 2 are arranged in parallel vertically and nine heating coils 2 are arranged in parallel.
  • the light emitting units 3 configured in a lattice shape so as to surround each heating coil 2 are provided. That is, each heating coil 2 is disposed in a substantially square frame formed by the light emitting unit 3.
  • the light emitting unit 3 is arranged in a frame shape around each of the plurality of heating coils 2 and is configured to emit light so as to be visible through the top plate 1.
  • an LED is used as a light emitting element, and light from the light emitting element is incident on the light guide plate, and each of the light guide plates constituting the frame emits light. .
  • an operation unit 4 configured by overlapping a touch panel on a liquid crystal display unit is provided immediately below the operation area 4a in the top plate 1.
  • an operation button on the operation unit 4 is provided immediately below the operation area 4a in the top plate 1.
  • one heating segment 10 is configured by one heating coil 2 and a frame-like light emitting unit 3 surrounding four sides of the heating coil 2. Therefore, in the adjacent heating segment 10, it becomes the structure by which the light emission part 3 arrange
  • the induction heating cooker of the first embodiment when the induction heating cooker is activated, only the light emitting unit 3 configured by the outermost frame emits light, and the metal cooking pan in the top plate 1 The heatable area 9 on which the object 7 to be heated can be placed is displayed, and the user can reliably recognize the heatable area 9. Therefore, in the induction heating cooker of Embodiment 1, it becomes a structure which can make a user recognize reliably that the area
  • the induction heating cooking appliance of Embodiment 1 it is comprised so that the presence or absence of the to-be-heated material 7 may be detected in each heating segment 10, and when the to-be-heated material 7 is mounted in the heatable area
  • the heating segment 10 on which the heated object 7 is placed detects the presence of the heated object 7, and the light emitting unit 3 in the heated segment 10 emits light. At this time, when the heated object 7 is detected in the plurality of heating segments 10, the light emitting unit 3 between the adjacent heating segments does not emit light.
  • the to-be-heated object detection part 5 which detects whether the to-be-heated object 7 was mounted is weak to the heating coil 2 in each heating segment 10, when the said induction heating cooking appliance starts.
  • a detection current that is a current is supplied, and the presence or absence of a load on the heating coil 2 is detected based on a change in the detection current. Therefore, by adjusting the threshold value for comparing the detected currents, even when the region covering the heating segment 10 is a small load, the heating coil 2 of the heating segment can be reliably detected.
  • the heated object detection unit 5 is configured to output a detection signal to the heating control unit 6 when the heated object is disposed at a substantially upper position in the heating coil 2.
  • the substantially upper position in the heating coil 2 refers to a position in a region where the current flowing in the heating coil 2 changes due to the object to be heated and exceeds the set threshold value.
  • FIG. 3 is a block diagram showing elements constituting the display function of the heatable area and the heating area during the induction heating operation in the induction heating cooker of the first embodiment.
  • an activation signal is input from the operation unit 4 to the heating control unit 6.
  • the heating control unit 6 causes only the light emitting unit 3 constituting the outermost frame body in the light emitting unit 3 provided directly below the top plate 1 to emit light, so that the Displays the heatable area.
  • FIG. 4 is a plan view showing a state where the outermost frame light-emitting part 3 emits light and the heatable region 9 is displayed in the heating coil 2 and the light-emitting part 3 arranged immediately below the top plate 1.
  • FIG. 4 in the state before the object to be heated is placed on the top plate 1, the frame located on the outermost side in the top plate 1 emits light, and the heatable region 9 is displayed. . Therefore, the user can recognize the heatable region 9 on the top plate 1, and can reliably place the cooking pan, which is an object to be heated, on the heatable region on the top plate 1. It becomes composition. For this reason, in the induction heating cooker of Embodiment 1, it is reliably prevented that the cooking pan which is an object to be heated is placed in an erroneous region where the induction heating in the top plate 1 cannot be performed.
  • the heating control unit 6 causes the heated object detection unit 5 to execute a detection operation for detecting whether or not the heated object 7 is placed in each heating segment 10.
  • a detection operation a detection current is passed through the heating coil 2 in each heating segment 10, and the presence or absence of the object 7 to be heated is detected by a change in the detection current.
  • the object to be heated detection unit 5 is based on the detection current of the heating coil 2.
  • a detection signal as a detection result is output to the heating control unit 6.
  • the heating control unit 6 causes the light emitting unit 3 in the corresponding heating segment 10 to emit light.
  • the light emission of the light emitting unit 3 existing between the adjacent heating segments 10 may be prohibited. That is, when the heating control unit 6 displays the heating region 8 on the light emitting unit 3 based on the detection result by the heated object detection unit 5, the heating object in the heating coil 2 arranged at a substantially upper position. It is good also as a structure which prohibits light emission of the light emission part 3 between the adjacent heating coils 2, and the heating area
  • the outermost region in the region constituted by the heating segment 10 covered with the object to be heated placed in the heatable region 9 of the top plate 1 is provided. Only the light emitting unit 3 indicating the frame emits light. Thus, the area
  • the heating region 8 for inductively heating the object to be heated emits light in a square frame shape around the object to be heated.
  • the heating area 8 is not obstructed by a lid or the like, and the user can reliably recognize the heating area 8. As a result, the induction heating cooker according to the first embodiment has good visibility with respect to the heating region 8 and can easily perform a centering operation to be described later with respect to the heating region 8.
  • FIG. 5 is a plan view showing a state when the object to be heated 7 is placed on the top plate 1, and shows a state where the heating region 8 is displayed by the light emitting unit 3.
  • the light emitting unit 3 in the heating segment 10 that detects the object to be heated 7 emits light in a square frame shape. At this time, even if the heated object 7 covers a part of the heating segment 10, the heated object 7 is detected in the heating segment 10 so that the light emitting unit 3 corresponding to the heated segment 10 emits light. It is configured.
  • the induction heating cooker according to the first embodiment has a configuration in which the object to be heated 7 is arranged so as to be in the center of the heating region 8 and the centering operation capable of increasing the heating efficiency can be easily performed. ing.
  • FIG. 6 is a plan view showing a state when the object 7 to be heated, which is a metal cooking pan, is placed on the top plate 1. As shown in FIG. 6, for example, when the object to be heated 7 is not disposed at the center of the heating region 8 that emits light in a square frame shape, the object to be heated 7 is used to be disposed at the center of the heating region 8. Can be encouraged.
  • FIG. 7 is a plan view showing a state when the object to be heated 7 is arranged at the center of the heating region 8 that emits light in a square frame shape in the top plate 1. As shown in FIG. 7, the object to be heated 7 is arranged in the center of the heating region 8, so that the object to be heated 7 is efficiently induction-heated by the heating coil 2 in the heating region 8.
  • the light emitting unit 3 is not prohibited from emitting light between the adjacent heating segments 10 having the heating coil 2 that has detected that the article 7 to be heated is placed.
  • FIG. 8 is a side cross-sectional view schematically showing a state in which the object to be heated 7 is not disposed at the center in the heating region 8
  • FIG. 9 is a diagram in which the object 7 to be heated is disposed at the center in the heating region 8.
  • positioned in the position with the highest heating efficiency with respect to the heating coil 2 is shown.
  • the heated object 7 is affected by the magnetic flux generated by the heating coil 2. Is in a state where it is efficiently received, and a highly efficient induction heating state is obtained.
  • the object to be heated 7 is placed on the top plate 1 and the heating region 8 is displayed, and then the induction heating operation for the object to be heated 7 is performed. Can be started.
  • the configuration has been described in which the heatable region 9 is not displayed after the heating region 8 is displayed.
  • the heatable region (9a: see FIG. 12) continues after the heating region 8 is displayed. You may comprise so that it may display. In this case, you may change the light emission state of the light emission part 3 in the heatable area
  • the amount of light, the wavelength (color) and / or the light emission state differ from those of the heatable region 9 before the heating region 8 is displayed. You may make it light-emit (for example, blinking state).
  • the top plate 1 is not displayed when the induction heating device is not used, that is, when the induction heating device is not activated.
  • the heatable region 9 is clearly displayed on the top plate 1, so that the commercial value is high and the configuration is easy to use.
  • the heatable region 9 is displayed on the top plate 1 and the heating coil 2 is substantially excited when the object to be heated 7 is placed.
  • a certain heating region 8 is displayed, which is easy to use and becomes a heating device having high heating efficiency, high reliability, and high safety.
  • FIG. 10 is a plan view showing a number of heating coils 2 and light emitting units 3 provided immediately below the top plate in a built-in type induction heating cooker that is an example of the induction heating device according to the second embodiment of the present disclosure. It is. As shown in FIG. 10, in the induction heating cooker according to the second embodiment, each heating coil 2 is surrounded by the light emitting sections 3 arranged in a lattice shape, similarly to the configuration of the first embodiment. Has been placed. That is, each heating coil 2 is disposed in a substantially square frame formed by the light emitting unit 3.
  • the operation part 4 is provided directly under the operation area
  • heating coils 2 are also provided in the left and right regions of the operation unit 4 immediately below the top plate 1. Therefore, in the induction cooking device of the second embodiment, if the size of the top plate 1 is the same, the heatable region 9 can be set wider than the configuration of the first embodiment.
  • FIG. 11 is a plan view showing a state in which the light emitting part 3 of the outermost frame body emits light and the heatable region 9 is displayed in the heating coil 2 and the light emitting part 3 arranged immediately below the top plate 1.
  • FIG. 11 in the state before the object to be heated 7 is placed on the top plate 1, the outermost frame on the top plate 1 emits light, and the heatable region 9 is displayed. Yes. Therefore, the user can recognize the heatable region 9 on the top plate 1, and can be configured to reliably place the article 7 to be heated on the heatable region on the top plate 1. For this reason, in the induction heating cooking appliance of Embodiment 2, it is prevented reliably that the to-be-heated material 7 is mounted in the incorrect area
  • the operation after the object 7 to be heated in the induction heating cooker according to the second embodiment is placed in the heatable region 9 is the heating segment 10 covered with the object 7 to be heated as described in the first embodiment. Is detected, and only the light emitting portion 3 indicating the outermost frame body of the region constituted by the detected heating segment 10 emits light, and the heating region 8 for induction heating the object 7 to be heated is provided. Is displayed.
  • the effect similar to the effect in the induction heating device according to the first embodiment is achieved, and further, the heatable region is set wider, It has a high product value and is easy to use.
  • the induction heating apparatus according to the third embodiment of the present disclosure will be described.
  • the difference from the induction heating device of the first embodiment and the second embodiment described above is the light emission configuration of the light emitting unit arranged immediately below the top plate.
  • the induction heating device of the third embodiment components having the same functions and configurations as those of the induction heating device of the first embodiment are denoted by the same reference numerals, and the detailed description thereof is described in the embodiment.
  • the explanation of 1 applies.
  • the basic operation in the third embodiment is the same as the operation in the first embodiment described above, and therefore, in the following description of the third embodiment, differences from the first embodiment will be described.
  • the configuration of the third embodiment is substantially the same as that of the first embodiment, and is characterized by controlling the light emission state of the light emitting unit 3, so that FIG. 5 used in the description of the first embodiment is used. This will be described with reference to FIG.
  • the configuration of the third embodiment can also be applied to the induction heating device of the second embodiment, and has the same effect as when applied to the induction heating device of the first embodiment.
  • FIG. 12 is a plan view showing a state when the object to be heated 7 is placed on the top plate 1 in the induction heating device of the third embodiment, along with a state where the heating region 8 is displayed by the light emitting unit 3. The state where the heatable region 9a is displayed is shown.
  • FIG. 13 is a block diagram showing elements constituting the display function of the heatable region 9a and the heating region 8 in the induction heating apparatus of the third embodiment.
  • the frame of the light emitting unit 3 in the heating segment 10 that detects the heated object 7 emits light A heating area 8 on which the object to be heated 7 is placed is displayed.
  • the heating coil 2 in the heating segment 10 still functions as a sensor of the heated object detection unit 5.
  • the heatable region 9a is displayed with light emission.
  • the display state of the heatable region 9a that emits light at this time may be a light emission state that is different from the display state of the heatable region 9a before the object 7 is placed.
  • the light amount and / or wavelength (color) may be changed, the light emission state may be changed, for example, the blinking state may be performed.
  • the heating control unit 6 causes the operation unit 4 to perform heating corresponding to the heating region 8 where the detected heated object 7 is placed. Displays the operation area. The user confirms the heating operation area displayed on the operation unit 4 and performs a heating start command operation on the heating operation area.
  • the heating coil 2 in the heating region 8 is substantially activated to generate an alternating magnetic field, and the induction heating operation is started.
  • the light emitting unit 3 showing the heating region 8 surrounding the heating coil 2 that has started the induction heating operation may be configured to display that the amount of light is increased and the heating region 8 is performing the induction heating operation. In this case, the color of the frame showing the heating region 8 may be changed by changing the wavelength.
  • the induction heating operation is surely performed for the user by displaying the heating region 8 performing the induction heating operation by changing (controlling) the light emission state of the light emitting unit 3. Can show that.
  • the object to be heated temperature detection unit 11 which detects the temperature of the object to be heated 7) ( 13) is provided.
  • the bottom temperature of the cooking pan that is the object to be heated 7 is always detected by the object to be heated temperature detection unit 11, and the detection signal that is the detection result is input to the heating control unit 6.
  • the heating control part 6 is good also as a structure which changes the light quantity and / or wavelength (color) of the heating area
  • work can be made easy for a user.
  • the non-contact-type temperature sensor is used, for example, an infrared sensor is used,
  • a contact-type temperature sensor may be used, for example, a thermistor is used.
  • the light emission state of the light emitting unit 3 indicating the heatable region 9a is the same as before the heating region 8 performs the induction heating operation.
  • the light emission state may be different from the display state of the heatable region 9a. For example, the amount of light and / or wavelength (color) may be changed, or blinking may be performed.
  • the heating coil detection part 12 which detects the temperature state of each heating coil 2 is provided.
  • the heating coil detection unit 12 a contact-type temperature sensor or a non-contact-type temperature sensor can be used.
  • a thermistor or an infrared sensor is used.
  • the detection signal from the heating coil detection unit 12 is input to the heating control unit 6, and the heating control unit 6 can be driven based on the detection results from the heated object detection unit 5 and the heating coil detection unit 12.
  • a region having a simple heating coil may be configured as a heatable region 9a so that the light emitting unit 3 in the heatable region 9a emits light.
  • the induction heating device when there are heating coils 2 in a state in which a large number of heating coils 2 arranged immediately below the top plate 1 cannot be induction-heated at full power because of high temperature, the full power Only a region constituted by the heating segment 10 having the heating coil 2 that can be induction-heated in the above may be configured to emit light and display as the heatable region 9a.
  • the said induction heating apparatus becomes easy to use for a user, and turns into a heating apparatus with high cooking efficiency.
  • the induction heating apparatus of the third embodiment is configured to detect the temperature state of the top plate by the top plate detection unit 13 and to output a detection signal as a detection result to the heating control unit 6.
  • a contact type temperature sensor or a non-contact type temperature sensor can be used.
  • a thermistor or an infrared sensor is used.
  • the light emitting unit 3 in the high temperature region is caused to emit light with a wavelength (color) different from that of the heatable region 9a and / or a blinking state, and the high temperature region in the top plate 1 is displayed to the user. May be.
  • the said induction heating apparatus turns into a heating apparatus easy to use for a user.
  • the heating segment 10 that detects the object to be heated 7 emits light in a frame shape to display the heating region 8.
  • the heating area 8 may be configured to display a larger area as the heating area 8. That is, the area including the heating segment 10 adjacent to the heating segment 10 in which the object 7 to be heated is detected is displayed as a heating area 8 by the corresponding light emitting unit 3.
  • This configuration exhibits a particularly excellent effect when the diameter of the heating coil 2 immediately below the top plate 1 is small and one heating segment 10 is small, and the user can easily place the object 7 to be heated against the heating region 8.
  • the centering operation can be performed reliably.
  • the user can reliably recognize the heatable region 9a in which an appropriate induction heating operation can be performed, and the object to be heated 7
  • the user can grasp the heating area 8 on which is placed, and can perform an induction heating operation with high efficiency.
  • the induction heating device of the third embodiment has a higher commercial value and is easy to use.
  • the heating device since the heatable region 9a and the heating region 8 are displayed, the heating device has high reliability and safety.
  • This disclosure presents an induction heating apparatus having excellent commercial value and high reliability and safety, and can be applied to various devices that perform induction heating such as an induction heating cooker.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

L'invention vise à procurer un dispositif de chauffage à induction facilement utilisable et hautement fiable et sûr, dans lequel la région pouvant être chauffée est clairement affichée sur la plaque supérieure. A cet effet, l'invention porte sur un dispositif de chauffage à induction, lequel dispositif comporte : un grand nombre d'enroulements chauffants (2) disposés immédiatement en dessous de la région pouvant être chauffée (9) sur la plaque supérieure (1) ; et des parties émettrices de lumière (3) disposées autour de chacun des enroulements chauffants ; le dispositif de chauffage à induction étant configuré de telle sorte que, lorsqu'aucun article à chauffer (7) n'est disposé sur la région pouvant être chauffée sur la plaque supérieure, au moins certaines des parties émettrices de lumière émettent de la lumière et affichent, par émission de lumière, la région pouvant être chauffée.
PCT/JP2013/004720 2012-08-09 2013-08-05 Dispositif de chauffage à induction WO2014024459A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112013003978.8T DE112013003978T5 (de) 2012-08-09 2013-08-05 Induktionsheizvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012177218A JP2014035933A (ja) 2012-08-09 2012-08-09 誘導加熱装置
JP2012-177218 2012-08-09

Publications (1)

Publication Number Publication Date
WO2014024459A1 true WO2014024459A1 (fr) 2014-02-13

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Country Status (3)

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JP (1) JP2014035933A (fr)
DE (1) DE112013003978T5 (fr)
WO (1) WO2014024459A1 (fr)

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WO2016067861A1 (fr) * 2014-10-29 2016-05-06 三菱電機株式会社 Dispositif de cuisson à chauffage par induction
KR102060149B1 (ko) 2018-03-08 2019-12-27 엘지전자 주식회사 인디케이터 구조가 개선된 유도 가열 장치
DE102018203607A1 (de) * 2018-03-09 2019-09-12 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Darstellung einer Anzeige an einem Kochfeld und Kochfeld
KR102107618B1 (ko) * 2018-05-23 2020-05-07 엘지전자 주식회사 워킹 코일 연결 구조가 개선된 유도 가열 장치
KR102651222B1 (ko) * 2018-11-19 2024-03-25 엘지전자 주식회사 부품 배치 구조 및 조립성이 개선된 유도 가열 장치
JP2024117319A (ja) * 2023-02-17 2024-08-29 パナソニックＩｐマネジメント株式会社 誘導加熱調理器

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JP2008527294A (ja) * 2005-01-07 2008-07-24 エーゲーオー エレクトロ・ゲレーテバウ ゲーエムベーハー 照明付きホブ、及びホブを照明する方法
WO2011148568A1 (fr) * 2010-05-28 2011-12-01 三菱電機株式会社 Réchaud à chauffage par induction

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US20050029245A1 (en) * 2003-08-04 2005-02-10 Davide Gerola Random positioning cooking hob with user interface
JP2008527294A (ja) * 2005-01-07 2008-07-24 エーゲーオー エレクトロ・ゲレーテバウ ゲーエムベーハー 照明付きホブ、及びホブを照明する方法
WO2011148568A1 (fr) * 2010-05-28 2011-12-01 三菱電機株式会社 Réchaud à chauffage par induction

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CN108293278A (zh) * 2015-12-04 2018-07-17 Bsh家用电器有限公司 炉设备
US11371716B2 (en) 2015-12-04 2022-06-28 BSH Hausgeräte GmbH Hob apparatus

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JP2014035933A (ja) 2014-02-24
DE112013003978T5 (de) 2015-06-25

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