WO2008026443A1 - Plaque à induction - Google Patents

Plaque à induction Download PDF

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Publication number
WO2008026443A1
WO2008026443A1 PCT/JP2007/065752 JP2007065752W WO2008026443A1 WO 2008026443 A1 WO2008026443 A1 WO 2008026443A1 JP 2007065752 W JP2007065752 W JP 2007065752W WO 2008026443 A1 WO2008026443 A1 WO 2008026443A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
air
heating coil
intake
fan
Prior art date
Application number
PCT/JP2007/065752
Other languages
English (en)
Japanese (ja)
Inventor
Kazuichi Okada
Takaaki Kusaka
Atsushi Sakamoto
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Publication of WO2008026443A1 publication Critical patent/WO2008026443A1/fr

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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
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1263—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using coil cooling arrangements
    • 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
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/02—Induction heating
    • H05B2206/022—Special supports for the induction coils

Definitions

  • the present invention relates to an induction heating cooker used by being incorporated in a system kitchen or the like.
  • a plurality of (for example, two) heating coils constituting the induction heating means are provided in the front part of the main body, and a radial heater which is an electric resistance heating type heating means is provided behind the heating coil.
  • the air taken in from the dedicated intake fan cools the control board equipped with electronic components, and the operation part provided on the front of the heating cooker or the heating part such as a heating cabinet or heating coil. After cooling, it is discharged to the outside by an exhaust fan (for example, see Patent Document 2).
  • Patent Document 1 Japanese Patent Laid-Open No. 11 354264
  • Patent Document 2 JP 2004-288650 A
  • the present invention provides a main body, a top plate that covers the upper surface of the main body, and first and second heating coils provided below the top plate and positioned in front of the main body. And a third heating coil positioned between the first and second heating coils at the rear of the main body and an air inlet formed on the upper surface of the main body on the rear side of the top plate.
  • An intake fan that is introduced into the interior and blows forward and exhausted from an exhaust port provided on the outer surface of the main body on the first heating coil side, and the first and second heating coils disposed in front of the intake fan
  • An induction heating cooker comprising a control board for driving the board and a board power bar covering the control board, wherein the air for cooling the third heating coil is outside the second heating coil.
  • the center of the third heating coil and the suction It is characterized in that an air passage that blows out from an outlet formed between the outer shell of the air fan is provided.
  • a main body a top plate covering an upper surface of the main body, first and second heating coils provided below the top plate and positioned in front of the main body, and A third heating coil located between the first and second heating coils at the rear of the main body, a roaster provided below the first heating coil, and external air from the upper rear surface of the main body
  • a roaster cover that partitions the space on the roaster side and the space on the control board and the first heating coil side, and the intake fan in the space on the side of the roaster that is cut by the side wall of the roaster cover.
  • An induction heating cooker provided with a control board for driving the heating coil and a board cover for covering the control board, wherein the air blown from the intake fan to the control board
  • the air is guided to the rear by an air passage formed in the space surrounded by the outer shell of the intake fan and the side wall of the roaster cover, blown from the discharge port formed at the rear inside the main body, and blown to the third heating coil. It is characterized by doing.
  • the discharge port of the ventilation path is formed on a substrate cover that covers an outer shell of the intake fan or the control substrate.
  • an auxiliary fan for sending air blown out from the discharge loci of the ventilation path is provided in the main body.
  • a main body In another form of the present invention, there are provided a main body, a top plate covering the upper surface of the main body, first and second heating coils provided in front of the main body, A third heating coil located between the first and second heating coils at the rear of the main body and an external air from an inlet formed on the second heating coil side of the upper rear surface of the main body.
  • An induction heating cooker comprising a control board that drives the control board and a board cover that covers the control board, and a discharge port that blows air for cooling the third heating coil from a position behind the main body
  • An air passage having an inside in the main body is a ventilation dart formed inside the fan body that covers the intake fan, and a ventilation path intake port that is an intake port of the ventilation path is formed in the ventilation duct.
  • An auxiliary fan is attached to the inside of the main body, and the air sucked into the auxiliary fan is sent to the third heating coil through the air inlet of the ventilation path provided at a lower temperature than the outlet. It is characterized by that.
  • a part of the ventilation path is formed in a ventilation duct formed in an outer shell of the intake fan or the substrate cover, or a substrate case that holds the control substrate positioned in front of the intake fan. It is a ventilation duct.
  • the ventilation path intake port is provided on the windward side of the intake fan, and the outside air is sucked through the intake fan.
  • a part of the ventilation path is a ventilation duct formed inside the main body, and a ventilation path intake port that is an intake port of the ventilation path is formed in the ventilation duct, and an auxiliary fan is formed inside the main body.
  • the air sucked into the auxiliary fan is sent to the third heating coil via the air passage intake port provided at a lower temperature than the discharge port, and the air passage intake port is You may provide in the windward side of the said roaster cover.
  • Still another embodiment of the present invention includes a main body, a top plate that covers the upper surface of the main body, first and second heating coils that are provided below the top plate and are located in front of the main body, and the front A third heating coil located between the first and second heating coils at the rear of the main body and an external air from an inlet formed on the second heating coil side of the upper rear surface of the main body.
  • An induction heating cooker comprising a control board for driving the board and a board cover covering the control board, wherein an air passage for blowing out air for cooling the third heating coil is provided inside the main body.
  • the air inlet of the ventilation path A passage air inlet is formed in a direction different from the inlet fan discharge port on the side wall of the outer shell of the intake fan, and a ventilation duct constituting the ventilation passage is formed in the outer shell of the intake fan, The air sucked into the intake fan is sent to the third heating coil through the ventilation passage inlet and the ventilation duct.
  • An auxiliary fan may be attached to the ventilation duct.
  • a main body a top plate covering the upper surface of the main body, first and second heating coils provided below the top plate and positioned in front of the main body, and the front
  • a third heating coil located between the first and second heating coils at the rear of the main body and an external air from an inlet formed on the second heating coil side of the upper rear surface of the main body.
  • An induction heating cooker comprising a control board for driving the board and a board cover covering the control board, wherein an air passage for blowing out air for cooling the third heating coil is provided inside the main body.
  • a part of the ventilation path is the intake air
  • the air that is formed and sucked into the intake fan is sent to the third heating coil via the ventilation duct of the substrate cover and the ventilation duct of the outer shell of the intake fan.
  • an auxiliary fan is attached to the ventilation duct formed in the outer shell of the intake fan or the ventilation duct formed in the substrate cover.
  • the second ventilation duct discharge port is formed in the substrate cover on the front side in the main body from the discharge port of the ventilation path, the air sucked into the intake fan is discharged into the second ventilation duct discharge port.
  • it can be sent to the third heating coil via the ventilation data discharge port.
  • air for cooling the third heating coil is formed outside the second heating coil between the center of the third heating coil and the outer shell of the intake fan. Since there is a ventilation passage that blows out the discharge loca, the pressure difference between the outer periphery of the intake fan outer shell and the exhaust port occurs due to the intake and exhaust action of the intake fan, and the wind blown from the discharge port near the intake fan Therefore, the air flows in the direction of the third heating coil located on the exhaust port side of the discharge port, so that a sufficient amount of air for cooling the third heating coil can be secured and the cooling can be efficiently performed. .
  • the air blown from the intake fan to the control board is guided rearward by a ventilation path formed in a space surrounded by the board cover, the outer shell of the intake fan, and the side wall of the roaster cover.
  • a ventilation path formed in a space surrounded by the board cover, the outer shell of the intake fan, and the side wall of the roaster cover.
  • the discharge port of the ventilation path is formed in the outer cover of the intake fan or the substrate cover that covers the control board, the discharge port and the ventilation path can be provided simultaneously by attaching these components to the main body. High-density mounting can be performed, or the ability to improve assembly can be improved.
  • a ventilation path for blowing out air for cooling the third heating coil is provided inside the main body, and a part of the ventilation path is configured by a ventilation duct formed in the outer shell of the intake fan.
  • Auxiliary fan is attached to the outer shell or the substrate cover, and installed on the windward side from the outlet When the air sucked into the auxiliary fan is sent to the third heating coil through the ventilated air inlet, the third heating coil is forced to flow near the third heating coil.
  • the cooling efficiency can be improved.
  • the third heating coil can be forcedly cooled with the required air volume, and the exhaust fan's exhaust resistance must be reduced to increase the speed of the intake fan more than necessary. , So noise is reduced
  • a part of the ventilation path is a ventilation duct formed in the outer shell of the intake fan or the substrate cover, or the ventilation formed in the substrate case holding the control substrate located in front of the intake fan. If it is a duct, it is possible to improve the assemblability when the ventilation path is provided in the main body and to design a high density.
  • the ventilation path intake port is provided on the windward side of the roaster cover, the air before the temperature rises due to the heat generated by the roaster is forced to flow in the vicinity of the third heating coil to The heating coil can be cooled.
  • the ventilation path intake port which is the intake path of the ventilation path that blows out air for cooling the third heating coil
  • the ventilation path intake port which is the intake path of the ventilation path that blows out air for cooling the third heating coil
  • the ventilation path intake port is formed in a different direction from the intake fan discharge port on the side wall of the outer shell of the intake fan.
  • the ventilation duct forming the ventilation path is formed in the outer shell of the intake fan and the air sucked into the intake fan is sent to the third heating coil via the ventilation path intake port and the ventilation duct.
  • the third heating coil can be cooled with air at room temperature instead of force. In this case, if an additional auxiliary fan for cooling the third heating coil is provided, the burden on the intake fan can be reduced, so it is cheaper and has less noise.
  • auxiliary fan when the auxiliary fan is fixed to the outer shell of the intake fan or the substrate cover, it is possible to improve the assemblability when the auxiliary fan is attached to the main body and to design a high density.
  • a part of the ventilation path is configured by a ventilation duct formed in a board cover that covers a control board positioned in front of the intake fan, and another ventilation that is a part of the ventilation path is formed on the outer shell of the intake fan.
  • a duct is formed and the air drawn into the intake fan is passed through the two ventilation ducts to the third
  • the air around the control board can be extracted efficiently, and the control board has an upwind! /, If there is a ventilation passage air intake at the top, there is little heat effect on the control board! /, Since air can be taken in and the third heating coil can be cooled, the cooling efficiency is improved.
  • an auxiliary fan is installed in the outer shell of the intake fan, it can be forced to increase the flow of air to the third heating coil and cool it, while reducing the exhaust resistance of the intake fan and making the intake fan speed higher than necessary. There is no need to increase! /, So noise is reduced.
  • a second ventilation duct discharge port is formed in the substrate cover on the front side of the ventilation path discharge port, and the air sucked into the intake fan is supplied to the first and second air via the second ventilation duct discharge port.
  • a part of the ventilation path is formed in the board case that holds the control board located in front of the intake fan. If an auxiliary fan is attached to this ventilation duct, the control board is cooled and the heated air can be extracted from the periphery of the control board, and the third heating coil can be cooled.
  • FIG. 1 is an exploded perspective view of an induction heating cooker according to a first embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of the third heating coil, fan cover, and intake fan case provided in the induction heating cooker of FIG.
  • FIG. 5 Front view of third heating coil, fan cover, and intake fan case in Fig. 4
  • FIG. 8 is an exploded perspective view of a third heating coil, a fan cover, and an intake fan case provided in the induction heating cooker according to the second embodiment of the present invention.
  • FIG. 9 is an exploded perspective view of a third heating coil, a fan cover, and an intake fan case provided in the induction heating cooker according to the third embodiment of the present invention.
  • FIG. 10 is a perspective view of the auxiliary fan case shown in FIG. 9 as viewed from below.
  • FIG. 11 shows a third heating coil provided in the induction heating cooker according to the fourth embodiment of the present invention. Exploded perspective view of the chassis, fan cover and board case
  • Air intake fan case 46a Ventilation path, 48 support member, 50 spring,
  • Ventilation duct 76 Ventilation duct, 76a outlet, 78 circuit components, 80 heat sink.
  • FIGS. 1 to 3 show the induction heating cooker according to the first embodiment of the present invention, and the main body 2 is dropped into the opening provided on the top surface of the kitchen cabinet and assembled. It is.
  • the upper surface of the main body 2 is covered with a top plate unit configured by surrounding the top plate 4 made of crystallized ceramic with a plate frame 6!
  • a plurality of (three in the present embodiment) heating units 8, 10, and 12 are displayed by printing.
  • External air is taken into the main body 2 at the rear of the main body 2 behind the top plate 4.
  • an exhaust port 16 for exhausting the air heated by the heat generating parts in the main body 2 to the outside!
  • the first and second heating coils 18 and 20 constituting the induction heating means are disposed in the forward direction below the top plate 4.
  • a third heating coil 22 is disposed at a position biased backward between the two heating coils 18 and 20.
  • roaster 30 having an opening on the front surface of the main body and incorporating a heater.
  • the heating chamber is formed as indicated by a broken line as a heating chamber, and a roaster cover 32 as a partition plate that shields heat from the roaster 30 is provided between the control boards 36 and 38 and the roaster 30, and the first heating It is interposed between coil 18 and roaster 30.
  • the rotor cover 32 is a heat shield that partitions the space on the roaster 30 side from the space on the control boards 36 and 38 and the first heating coil 18 side.
  • a clearance for heat insulation is provided on the upper surfaces of the roaster cover 32 and the roaster 30.
  • a plurality of members for supporting the coil base 24 on which the first heating coil 18 is placed On the roaster force bar 32 in which a metal plate such as an iron plate is bent to form a horizontal portion and a vertical wall portion, a plurality of members for supporting the coil base 24 on which the first heating coil 18 is placed. (For example, three) support members (not shown) are fixed, and the first heating coil 18 is pressed against the back surface (lower surface) of the top plate 4 by a spring 33 attached to the support member. .
  • an operation unit 35 that is operated when cooking using the induction heating cooker.
  • an operation unit 35 that is operated when cooking using the induction heating cooker.
  • the side of the roaster 30 below the second heating coil 20, it is partitioned by the side wall of the roaster cover 32, the substrate cover 44d (substrate fan cover 44), and the main body side wall 2a.
  • three control boards 34, 36, 38 equipped with electronic parts for controlling the first to third heating coils 18, 20, 22 are arranged in a vertically stacked state.
  • a plurality of (for example, two) centrifugal-type intake fans 40, 42 for vertically sucking air outside the main body 2 and discharging the air in the direction of the control boards 34, 36, 38 are arranged vertically. It is.
  • the three control boards 34, 36, 38 are cooled by the air discharged from the intake fans 40, 42.
  • the configuration of the intake fans 40, 42 is indicated by broken line arrows in FIG.
  • more cooling air is supplied to the upper and lower control boards 34 and 36 than to the intermediate control board 38.
  • the rated output of the third heating coil 22 arranged at the rear is set to be the smallest.
  • the control board 38 that controls the three heating coils 22 is arranged in the intermediate layer
  • the intermediate layer is configured in a two-step shape with a step, and the first such as a switching element or a diode bridge (power module) that is a heat generating component is formed.
  • the second circuit component such as a resonant capacitor, which is a heat generating component, is placed on the lower stage 38b so that the temperature rise distribution is equalized and cooling efficiency is improved. Has improved.
  • a heat sink 43 for improving the heat transfer rate is fixed as a heat dissipation means.
  • a plurality of extending cooling fins are formed.
  • a board cover 44d provided to cover the control boards 34, 36, 38 from above and a fan cover 44e provided to form an outer shell of the intake fans 40, 42 and cover the upper part thereof.
  • the main body outer shell is arranged so as to partition the upper side of the space surrounded by the side wall portion (right side wall portion in FIG. 1) 2a and the front wall portion 2b of the main body outer shell.
  • FIG. 4 and 5 show the board fan cover 44 and the intake fan case 46.
  • a board cover 44d is formed on the board side of the board fan cover 44.
  • a plurality of (for example, three) cylindrical support members 48 for supporting the coil base 26 on which the second heating coil 20 is placed are integrally formed of a resin material on the substrate cover 44d.
  • the coil base 26 is in a state in which a cylindrical contact portion (not shown) and an elastic member (not shown) provided thereon are in contact with each other by a spring 50 fitted and attached to the support member 48.
  • Top The distance between the second heating coil 20 and the back surface of the top plate 4 is secured by being pressed against the back surface (bottom surface) of the plate 4.
  • the board fan cover 44 located above the intake fan 40 is integrally formed of a resin material with a fan cover 44e protruding upward, and the intake port 14 force and the like are taken in. The external air thus drawn is sucked into the intake fans 40 and 42 from the intake portion 44a provided inside the fan cover 44e.
  • a substrate cover 44d is integrally formed of a resin material on the third heating coil 22 side in front of the substrate fan cover 44, and the coil base 28 on which the third heating coil 22 is placed.
  • One of a plurality of (for example, three) supporting members 52 for supporting the fan is integrally formed of a resin material in a state of being close to the upper portion of the side wall (vertical wall) of the intake fan case 46 in the board fan cover 44. ing.
  • a dedicated ventilation duct 53 for cooling the third heating coil 22 is formed integrally with the substrate fan cover 44 on the third heating coil 22 side of the fan cover 44e.
  • This ventilation duct 53 is divided into front and rear, and a ventilation path intake port 53a is formed at the rear and a ventilation path discharge port 53b is formed at the front!
  • a lower case 60 which is a part of the auxiliary fan case 58, is integrally formed of a resin material on the third heating coil 22 side of the intake fan case 46.
  • the auxiliary fan 62 is accommodated, and an upper case 64 that is another part of the auxiliary fan case 58 is screwed to the lower case 60.
  • the upper case 64 behind the auxiliary fan 62 is formed with an intake port 64b positioned directly below the intake port 53a of the ventilation duct 53 formed integrally with the fan cover 44.
  • the upper case 64 is formed with a discharge port 64a positioned immediately below the discharge port 53b of the ventilation data 53.
  • FIG. 6 As shown in FIG. 6, on the roaster cover 32 below the third heating coil 22, two cylindrical support members 54 for supporting the coil base 28 are vertically arranged at the positions indicated by broken lines.
  • the coil base 28 is formed by the two support members 54 and the spring 56 attached to the one support member 52 described above, so that the coil base 28 has a cylindrical contact portion 28c and an inertia member 28d provided thereon.
  • the third heating coil 22 is pressed against the back surface (lower surface) of the top plate 4 in a state where the contact is made, and the distance between the third heating coil 222 and the back surface of the top plate 4 is secured.
  • an annular magnetic shield ring 66 is placed on the coil base 28 outside the third heating coil 22.
  • the fan 28 is integrally formed with a substantially triangular extending portion 28a extending upward from the fan cover 44e so as to substantially face the outlet 53b of the ventilation duct.
  • the extending portion 28a is supported by the support member 52 described above formed on the substrate fan cover 44, and a ventilation path 68 for sending cooling air to the third heating coil 22 is provided above and below the extending portion 28a. It is formed in the direction.
  • the above-described magnetic-shielding ring is similarly placed on the coil base 24 outside the first heating coil 18 and the coil base 26 outside the second heating coil 20.
  • the coil base 28 positioned substantially opposite to the extending portion 28a is provided with a locking portion 28b having a substantially inverted L-shaped vertical section for holding the magnetic shield ring 66.
  • the magnetic shield 66 which is formed and partially locked to the locking portion 28b, is screwed to the coil base 28 at the other two points. Since the magnetic shield ring generates heat, the temperature of the part located on the leeward side is higher than the temperature of the part located on the leeward side. Since there is a gap in the locking part, there is no problem even if the dimensions of the resin part change due to aging, but there is a risk that the screw will loosen in the screwed part.
  • This method of attaching the magnetic shield ring 66 prevents the coil base 28 or the magnetic shield ring 66 from being deformed by thermal expansion, and ensures that the magnetic shield ring 66 is fixed by screwing it on the windward where temperature change is small.
  • the coil base 28 is provided with a plurality of locking portions, and at least one power point of the magnetic shield ring 66 is on the windward side! /, And is screwed to the coil base 28. You can do it! /
  • two coil holders 70 extending substantially in parallel to the coil base 28 are screwed at the inner portion of the intermediate winding portion between the outer winding portion and the inner winding portion of the third heating coil 22.
  • the third heating coil 22 is held between the coil base 28 and the coil base 28 by being sandwiched between the coil base 28 and the two coil holders 70.
  • the direction in which the coil holder 70 extends substantially coincides with the direction in which the cooling air that has passed through the ventilation path 68 formed in the extending portion 28a of the coil base 28 flows. Yes.
  • the two support members 54 that are vertically attached to the roaster cover 32 efficiently remove the entire third heating coil 22 that does not obstruct the flow of the cooling air that has passed through the ventilation path 68. It is placed in a position where it can be cooled. That is, out of the two tangents LI and L2 parallel to the line L connecting the approximate center C of the ventilation path 68 and the center of the third heating coil 22 among the tangent lines of the outer peripheral portion of the third heating coil 22 Two support members 54 are located in the middle.
  • the operation unit 35 is operated to apply a high-frequency current to the third heating coil 22.
  • an eddy current is generated at the bottom of the object to be heated and the object to be heated itself generates heat.
  • power is also supplied to the intake fans 40 and 42, and the air taken in from the intake port 14 descends the intake fan case 46 and is drawn into the intake fans 40 and 42 as shown by the broken arrows in FIG.
  • the air discharged from the intake fans 40, 42 passes over the control boards 34, 36, 38 laminated in three layers, and part of the openings are formed in the board cover 44d above the control board 34.
  • the intermediate layer control among the three-layer control boards 34, 36, 38 is controlled.
  • Substrate 36 has less airflow than upper or lower control substrates 34 and 38, so the intermediate layer has a two-stage configuration to improve cooling efficiency.
  • the heat sink 43 on the first circuit part is also provided. The cooling air discharged from the intake fan 40 directly hits, and the first circuit component placed in front of the main body and placed on the upper stage 38a is also sufficiently cooled.
  • the air for cooling the third heating coil 22 is outside the second heating coil 22, and the center of the third heating coil 22 and the outer shells of the intake fans 40, 42 (fan cover). 44e and the intake fan case 46) are provided with a ventilation path that blows out from the discharge port 53b (path from the ventilation path intake port 53a to the discharge port 53b).
  • a ventilation path that blows out from the discharge port 53b (path from the ventilation path intake port 53a to the discharge port 53b).
  • outlet 53b of the ventilation path is formed by the fan cover 44e that forms the outer shell of the intake fan 40, 42, by attaching these components in the main body, the outlet 53b and Ventilation paths can be provided at the same time, enabling high-density mounting or improving assembly.
  • the discharge port 53b may be formed in a substrate cover 44d that covers the control substrate or an intake fan case that forms an outer shell of the intake fan.
  • a ventilation path for blowing out air for cooling the third heating coil 22 is provided inside the main body, and a part of the ventilation path is provided in the outer shell of the intake fan (the intake fan case 46 and the intake fan cover 44d). It is composed of the formed ventilation ducts (ventilation duct 53 and auxiliary case 58), and the auxiliary fan 62 is attached to the outer shell of the intake fan, and the ventilation path intake port 53a provided on the windward side from the discharge port 53b If the air sucked into the auxiliary fan 62 is sent to the third heating coil 22 through the air, the low-temperature air is forced to flow in the vicinity of the third heating coil 22 to cool the third heating coil 22. Can improve the cooling efficiency.
  • the third heating coil 22 draws air close to room temperature.
  • the force S can be forced to flow in the vicinity.
  • the third heating coil 22 can be forcibly cooled with the required air volume.
  • a part of the ventilation path is provided in the board cover 44d instead of the outer shell of the intake fan, and the position inside the main body (eg, the intake fan 40,
  • a ventilation passage intake port 53a may be provided in the vicinity of 42 discharge ports or in the vicinity of the control boards 34, 36, and 38).
  • the substrate cover and the fan cover are integrated with a resin material to form the substrate fan cover so that the assemblability is improved. It may be a separate body.
  • Ventilation passage 46a is formed at the upper part of intake fan case 46 without providing 53.
  • a lower case 60 which is a part of the auxiliary fan case 58, is integrally formed of a resin material.
  • An auxiliary fan 62 shown in FIG. 7 is accommodated, and an upper case 64 that is another part of the auxiliary fan case 58 is screwed to the lower case 60.
  • the upper case 64 has a discharge port 64a through which air discharged from the auxiliary fan 62 is discharged. Air sucked into the auxiliary fan 62 from the intake fan 40 via the ventilation path 46a is It is discharged upward through the discharge port 64a.
  • the air discharged from the intake fans 40, 42 is sent toward the control boards 34, 36, 38.
  • a part of the discharged air is sucked into the auxiliary fan 62 through the ventilation path 46 a formed in the intake fan case 46.
  • the air sucked into the auxiliary fan 62 passes through the discharge port 64a formed in the upper case 64, and the ventilation path 68 is formed in the extension portion 28a of the coil base 28 on which the third heating coil 22 is placed.
  • the magnetic shield ring 66, the third heating coil 22 and the like are cooled, and then discharged from the exhaust port 16.
  • the side wall of the intake fan case 46 which is the outer shell of the intake fan, is connected to the ventilation path intake port 46a, which is the intake port of the ventilation path that blows out air for cooling the third heating coil 22.
  • the ventilation duct (auxiliary fan case 58) that communicates with the ventilation path is formed in the intake fan case 46, which is the outer shell of the intake fans 40, 42. If the air sucked into 40 and 42 is sent to the third heating coil 22 via the ventilation passage inlet 46a and the ventilation duct (auxiliary fan case 58), if the configuration is simplified, the power is not limited to the room temperature.
  • the third heating coil 22 can be cooled with air.
  • auxiliary fan 62 for cooling the third heating coil 22
  • the burden on the intake fans 40, 42 can be reduced, so that the cost is low and the noise is low.
  • the auxiliary fan 62 is fixed to the outer shell of the intake fans 40, 42 (may be fixed to the board cover 44d), the assembly when attaching the auxiliary fan 62 to the main body is improved and the design is high density. be able to.
  • the auxiliary fan 62 since the air discharged from the intake fan 40 through the ventilation path 46a is forcibly sent to the auxiliary fan case 58, the auxiliary fan 62 does not necessarily require the auxiliary fan case 58. It can also be used as a ventilation duct.
  • a lower case 60 which is a part of the auxiliary fan case 58, is formed on the third heating coil 22 side of the intake fan case 46, and this lower portion
  • An auxiliary fan 62 is accommodated in the case 60
  • an upper case 64 which is another part of the auxiliary fan case 58, is screwed to the lower case 60.
  • the lower case 60 is formed with an intake port 60a through which air discharged from the intake fans 40, 42 is sucked, and the upper case 64 is discharged from which air discharged from the auxiliary fan 62 is discharged.
  • An outlet 64a is formed.
  • a ventilation duct 72 is integrally formed of a resin material on the roaster 30 side of the substrate cover 44d above the control boards 34, 36, and 38, and the ventilation duct 72 is positioned laterally.
  • a first discharge port 72a that opens toward the first heating coil 18 and a second discharge port 72b that opens toward the lower side of the auxiliary fan case 58 positioned rearward are formed.
  • the air is guided to the rear by a ventilation path formed in the space surrounded by the side wall, and is sucked into the auxiliary fan 62 housed in the auxiliary fan case 58 through the intake port 60a formed in the lower case 60 of the auxiliary fan case 58.
  • a ventilation path C is formed, and the air sucked and discharged from the auxiliary fan 62 is discharged upward from the discharge port 64a formed in the upper case 64 of the auxiliary fan case 58.
  • the air discharged upward from the auxiliary fan 62 passes through the ventilation path 68 formed in the extending portion 28a of the coil base 28 on which the third heating coil 22 is placed, and is thus magnetically shielded. After the ring 66, the third heating coil 22 and the like are cooled, they are discharged from the exhaust port 16.
  • the air sucked into the intake fans 40, 42 is sent to the third heating coil 22 via the two ventilation ducts, so that the air around the control board can be efficiently extracted. If a ventilation path air intake is provided on the upper or upper part of the control board, the third heating coil 22 can be cooled by taking in air with less heat influence on the control board and cooling efficiency is improved.
  • the two ventilation ducts efficiently guide a part of the low-temperature cooling air blown out of the intake fans 40, 42, which is one of them, to the third heating coil 22, and is opposite to the intake fan. Cooling air can be smoothly passed through the exhaust port located at Also, if an auxiliary fan is attached to one of these ventilation ducts, the control board is cooled and the heated air can be extracted from the periphery of the control boards 34, 36, 38, and the third heating coil 22 is cooled. it can.
  • Case 58 can also be used as a ventilation duct.
  • a ventilation duct 76 is integrally formed of a resin material in a board case 74 that holds the control boards 34, 36, and 38, and an auxiliary fan (not shown) is formed in the ventilation duct 76. ).
  • the upper control board 34 is provided with a plurality of circuit components 78 and a heat sink 80 as a heat dissipation means, and a ventilation duct 76 is provided in the board case 74 on the side of the intake fan case 46 behind the control board 34. Yes. Further, the ventilation duct 76 is formed with a discharge port 76a opening upward!
  • the upper layer of the air discharged from the intake fans 40, 42 toward the control boards 34, 36, 38 Part of the air that has passed through the control board 34 is sucked into the auxiliary fan via the ventilation duct 76. Further, the air discharged from the auxiliary fan is discharged above the discharge port 64a formed in the ventilation duct 76.
  • the air discharged upward from the auxiliary fan 62 passes through the ventilation path 68 formed in the extending portion 28a of the coil base 28 on which the third heating coil 22 is placed, and is thus magnetically shielded. After the ring 66, the third heating coil 22 and the like are cooled, they are discharged from the exhaust port 16.
  • the heating cooker according to the present invention can efficiently cool the heating coil arranged at the rear, the three-neck induction in which two heating coils are provided at the front and one heating coil is provided at the rear. It is useful as a multi-mouth induction heating cooker such as a heating cooker.

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

Abstract

Plaque à induction comprenant un corps, une plaque supérieure pour couvrir la surface supérieure du corps, des serpentins de chauffage situés sous la plaque supérieure, et un ventilateur à aspiration d'air pour faire entrer l'air extérieur par un orifice d'aspiration formé sur la plaque supérieure. L'un (22) des serpentins de chauffage est disposé selon une position arrière à l'intérieur du corps. En outre, un passage de ventilation (53) utilisé exclusivement pour refroidir le serpentin de chauffage (22) disposé selon une position arrière est situé dans le corps.
PCT/JP2007/065752 2006-09-01 2007-08-10 Plaque à induction WO2008026443A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006237650A JP4783244B2 (ja) 2006-09-01 2006-09-01 誘導加熱調理器
JP2006-237650 2006-09-01

Publications (1)

Publication Number Publication Date
WO2008026443A1 true WO2008026443A1 (fr) 2008-03-06

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PCT/JP2007/065752 WO2008026443A1 (fr) 2006-09-01 2007-08-10 Plaque à induction

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Country Link
JP (1) JP4783244B2 (fr)
WO (1) WO2008026443A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
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WO2014112386A1 (fr) * 2013-01-21 2014-07-24 パナソニック株式会社 Cuisinière
EP2781177A1 (fr) * 2013-03-21 2014-09-24 KSF Grillgeräte GmbH Friteuse à induction avec refroidissement de bobine
US20180077761A1 (en) * 2016-09-15 2018-03-15 Panasonic Intellectual Property Management Co., Ltd. Induction cooking device
EP4090134A1 (fr) * 2021-05-12 2022-11-16 Electrolux Appliances Aktiebolag Dispositif de bobine d'induction et table de cuisson à induction comportant un dispositif de bobine d'induction

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JP4998382B2 (ja) * 2008-06-19 2012-08-15 パナソニック株式会社 誘導加熱調理器
JP5279537B2 (ja) * 2009-02-04 2013-09-04 三洋電機株式会社 誘導加熱調理器
JP5293446B2 (ja) * 2009-06-23 2013-09-18 パナソニック株式会社 誘導加熱調理器
JP5489329B2 (ja) * 2009-10-28 2014-05-14 株式会社東芝 加熱調理器
JP5677241B2 (ja) * 2011-09-01 2015-02-25 三菱電機株式会社 誘導加熱調理器
JP5540063B2 (ja) * 2012-12-19 2014-07-02 三菱電機株式会社 誘導加熱調理器

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JP2003282232A (ja) * 2002-03-25 2003-10-03 Matsushita Electric Ind Co Ltd 誘導加熱装置
JP2004079448A (ja) * 2002-08-22 2004-03-11 Mitsubishi Electric Corp 加熱調理器
JP2007103110A (ja) * 2005-10-03 2007-04-19 Matsushita Electric Ind Co Ltd 誘導加熱調理器
JP2007250502A (ja) * 2006-03-20 2007-09-27 Matsushita Electric Ind Co Ltd 誘導加熱調理器

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JP2003282232A (ja) * 2002-03-25 2003-10-03 Matsushita Electric Ind Co Ltd 誘導加熱装置
JP2004079448A (ja) * 2002-08-22 2004-03-11 Mitsubishi Electric Corp 加熱調理器
JP2007103110A (ja) * 2005-10-03 2007-04-19 Matsushita Electric Ind Co Ltd 誘導加熱調理器
JP2007250502A (ja) * 2006-03-20 2007-09-27 Matsushita Electric Ind Co Ltd 誘導加熱調理器

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014112386A1 (fr) * 2013-01-21 2014-07-24 パナソニック株式会社 Cuisinière
CN104272864A (zh) * 2013-01-21 2015-01-07 松下知识产权经营株式会社 加热烹调器
JPWO2014112386A1 (ja) * 2013-01-21 2017-01-19 パナソニックＩｐマネジメント株式会社 加熱調理器
EP2781177A1 (fr) * 2013-03-21 2014-09-24 KSF Grillgeräte GmbH Friteuse à induction avec refroidissement de bobine
US20180077761A1 (en) * 2016-09-15 2018-03-15 Panasonic Intellectual Property Management Co., Ltd. Induction cooking device
EP3297401A1 (fr) * 2016-09-15 2018-03-21 Panasonic Intellectual Property Management Co., Ltd. Dispositif de cuisson par induction
US10251221B2 (en) 2016-09-15 2019-04-02 Panasonic Intellectual Property Management Co., Ltd. Induction cooking device
EP4090134A1 (fr) * 2021-05-12 2022-11-16 Electrolux Appliances Aktiebolag Dispositif de bobine d'induction et table de cuisson à induction comportant un dispositif de bobine d'induction
WO2022238136A1 (fr) * 2021-05-12 2022-11-17 Electrolux Appliances Aktiebolag Dispositif de bobine d'induction et plaque de cuisson à induction dotée d'un dispositif de bobine d'induction

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Publication number Publication date
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JP2008059983A (ja) 2008-03-13

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