WO2009144916A1 - 誘導加熱調理器 - Google Patents
誘導加熱調理器 Download PDFInfo
- Publication number
- WO2009144916A1 WO2009144916A1 PCT/JP2009/002309 JP2009002309W WO2009144916A1 WO 2009144916 A1 WO2009144916 A1 WO 2009144916A1 JP 2009002309 W JP2009002309 W JP 2009002309W WO 2009144916 A1 WO2009144916 A1 WO 2009144916A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- infrared sensor
- heating coil
- cooling
- cooling air
- induction heating
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 99
- 230000006698 induction Effects 0.000 title claims abstract description 34
- 238000010411 cooking Methods 0.000 title claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 78
- 230000005291 magnetic effect Effects 0.000 claims abstract description 78
- 229910000859 α-Fe Inorganic materials 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 12
- 238000005192 partition Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- 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 invention relates to an induction cooking device equipped with an infrared sensor.
- this type of induction heating cooker suppresses leakage of magnetic flux from the top plate on which the cooking container is placed, a heating coil provided below the placement unit, and a heating coil provided near the heating coil.
- a magnetic shielding member an infrared sensor that receives infrared rays emitted from the cooking container on the top plate and outputs a detection signal corresponding to the amount of light, and a control circuit that controls the output of the heating coil based on the detection signals
- Some infrared sensors are arranged below the magnetic-shielding member (see, for example, Patent Document 1).
- FIG. 6 shows a conventional induction heating cooker.
- a top plate 3 on which the cooking container 2 is placed is provided on the upper surface of the main body 1 forming the outer shell, and a heating coil 4 for inductively heating the cooking container 2 is provided below the top plate 3.
- the lower part of the heating coil 4 is a ferromagnetic material, and ferrite 5 having a function of collecting magnetic flux is provided radially from the center of the heating coil 4 when viewed from above, and the magnetic flux generated from the heating coil 4 and directed downward is generated. Suppressed.
- an infrared sensor 6 is provided below the heating coil 4 for inductively heating the bottom surface of the cooking container 2.
- the infrared radiation emitted from the bottom surface of the cooking container 2 is detected through the top plate 3, and the cooking container 2 is detected.
- a signal corresponding to the bottom temperature of the is output.
- a control circuit 7 for controlling the output of the heating coil 4 based on a signal output from the infrared sensor 6 is provided below the infrared sensor 6.
- the control circuit 7 is disposed in a cooling air passage 11 formed between a partition plate 10 provided below the heating coil 4 and the bottom of the main body 1.
- the heat generating component 8 constituting the control circuit 7 such as an IGBT or a resonance capacitor attached to the heat sink 8a is placed and fixed on the control board 7a, and is brought to a desired temperature by the blower 9 provided in the main body 1. To be cooled.
- the heating coil 4 is mounted on the upper surface of the coil base 13 that accommodates the ferrite 5 and is fixed by bonding or the like.
- the coil base 13 is a spacer 16 for forming a space between the upper surface of the heating coil 4 and the top plate 3. Is supported by the spring 12 provided on the partition plate 10 so as to be pressed against the lower surface of the top plate 4.
- the infrared sensor 6 is disposed below the ferrite 5 and above the partition plate 10. In the infrared sensor 6, the influence of the magnetic flux is reduced by the magnetic flux converging action of the ferrite 5.
- the infrared sensor 6 is configured to be covered with a magnetic shielding case 14 made of aluminum or the like having a magnetic field shielding action.
- the infrared sensor 6 is heated and rises in temperature due to the influence of heat generated in the heating coil 4 and the cooking vessel 2, and therefore needs to be cooled to a desired temperature.
- the partition plate 10 is provided with a ventilation hole 15 in the vicinity of the infrared sensor 6, and a part of the cooling air flowing through the cooling air passage 11 passes through the ventilation hole 15 to cool the infrared sensor 6.
- the induction heating cooker equipped with the conventional infrared sensor can perform stable temperature detection without being affected by leakage magnetic flux from the heating coil due to the above-described configuration.
- the infrared sensor 6 is cooled through the ventilation hole 15 by using a part of the cooling air flowing from the cooling air passage 11, a sufficient cooling effect cannot be sent to the magnetic shielding case 14, thereby obtaining a cooling effect. It was difficult to be detected and accurate temperature detection was difficult.
- the present invention has been made in view of the above-described problems of the prior art, and has a simple structure, good assemblability, and an induction capable of accurate temperature detection by suppressing the temperature rise of the infrared sensor.
- the purpose is to provide a cooking device.
- the infrared sensor is disposed at a position lower than the magnetic shield provided between the ferrite provided at the lower portion of the heating coil and the control circuit, The cooling air is sent in the direction of the infrared sensor along the lower surface of the magnetic shield.
- the infrared sensor and the control circuit are arranged in the same space, and inclusions between the infrared sensor and the control circuit can be reduced, so that the assemblability can be improved.
- the space along the bottom surface of the magnetic shield is used as a cooling air passage for the infrared sensor, and a control circuit is also arranged in the cooling air passage, so that the control circuit and the infrared sensor are connected with the cooling air from the same cooling device. Cooling is performed efficiently, temperature rise of the infrared sensor is suppressed, and accurate temperature detection is possible.
- the induction heating cooker of the present invention has a simple structure and good assemblability, and can suppress the influence of the electromagnetic field of the infrared sensor and the temperature rise, thereby realizing accurate temperature detection.
- FIG. 1 is a cross-sectional view showing a configuration of an induction heating cooker according to Embodiment 1 of the present invention.
- FIG. 2 is a plan view of the inside of the cooling air passage of the induction heating cooker according to the second embodiment of the present invention as viewed from above.
- FIG. 3 is a plan view of the inside of the cooling air passage of the induction heating cooker according to the third embodiment of the present invention as viewed from above.
- FIG. 4 is a plan external view of the induction heating cooker as viewed from above according to Embodiment 4 of the present invention.
- FIG. 5 is a cross-sectional view showing the configuration of the induction heating cooker in the fifth embodiment of the present invention.
- FIG. 6 is a cross-sectional view showing the configuration of a conventional induction heating cooker
- a top plate provided on the upper surface of the main body for placing the cooking container, a heating coil provided at the lower part of the top plate for heating the cooking container, and provided at a lower part of the heating coil and viewed from above
- the ferrite arranged radially from the center of the heating coil, the heating coil and the heating coil holding plate for holding the ferrite, and the infrared ray provided at the lower part of the top plate for detecting infrared rays radiated from the cooking vessel
- a sensor and a semiconductor element that drives an inverter circuit supplied to the heating coil and is attached to a cooling fin to be cooled, and controls the output of the heating coil according to the output of the infrared sensor provided below the ferrite And a magnetic field that is provided between the ferrite and the control circuit and leaks under the ferrite.
- a space along the bottom surface of the magnetic shield is used as a cooling air passage for the infrared sensor, and a control circuit is also arranged in the cooling air passage, so cooling air from the same cooling device can be used.
- the control circuit and the infrared sensor are efficiently cooled, the cooling efficiency of the infrared sensor is improved, and accurate temperature detection is possible.
- a cylinder penetrating the magnetic shielding plate is provided between the infrared sensor of the first invention and the top plate so that infrared rays radiated from the cooking container pass through the inside of the cylinder.
- the end face of the cylindrical body can be brought close to the vicinity of the infrared sensor, and infrared rays from other than the cooking container can be prevented from entering the infrared sensor, thereby suppressing the influence of disturbance light from the periphery of the infrared sensor. be able to. Therefore, the degree of freedom of arrangement of the infrared sensor in the vertical direction is increased, and the cooling performance can be easily optimized.
- the third aspect of the invention is particularly directed to the flow direction of cooling air coming out of the blower device of the first invention and cooling the infrared sensor and the flow direction of cooling air coming out of the blower device and cooling the cooling fins of the control circuit. Since the infrared sensor and the cooling fin are arranged in parallel toward the blower so that they are in parallel, strong cooling air in the vicinity of the heat-generating component can be used, so that the infrared sensor can be effectively cooled. It is something that can be done.
- the duct for guiding the cooling air from the blower of the third aspect of the invention toward the infrared sensor is arranged in parallel with the cooling fin, so that the strong cooling air of the blower can be directly guided to the infrared sensor. This can further improve the cooling efficiency of the infrared sensor.
- the fifth invention further includes a light emitting portion surrounding the outer periphery of the heating coil in any one of the first to fourth inventions, and the top plate is provided on the lower surface of the portion facing the heating coil and the lower surface of the periphery thereof.
- a light-shielding film that prevents light from being transmitted, and has a light-transmitting part that removes the light-shielding film from the lower surface facing the light-emitting part so as to transmit light.
- the disturbance light incident from the top plate is absorbed by the magnetic shielding plate by using the light-absorbing coating film as the shielding film of the fifth aspect of the invention, the effect of blocking disturbance light is further increased. As a result, the temperature can be detected more stably.
- the infrared sensor is housed and provided with a casing that is attached to the lower surface side of the coil holding plate. It can be assembled while attached to the holding plate, making assembly and disassembly work easier.
- the casing of the seventh aspect is formed of a conductive metal material and connected to a detection circuit that detects the output of the infrared sensor, and is electrically insulated from the magnetic shield. It is possible to prevent current from flowing into the detection circuit via the magnetic shield.
- FIG. 1 is a cross-sectional view of a main part showing the configuration of the induction heating cooker in the first embodiment of the present invention.
- the main body 21 of the induction heating cooker has a bottom portion 21a that forms a bottom surface and a side portion (not shown) that forms a side surface, and forms a box-shaped outer shell whose top surface is open.
- a top plate 23 on which the cooking container 22 is placed is provided on the upper surface.
- a heating coil 24 for induction heating the cooking vessel 22 is provided below the top plate 23.
- a plurality of rod-shaped ferrites 25, which are ferromagnetic and have an action of collecting magnetic flux, are provided radially from the center of the heating coil 24 as viewed from above.
- the ferrite 25 has a magnetic shielding effect that suppresses the downward magnetic flux generated from the heating coil 24 and traveling downward from the heating coil 24.
- An infrared sensor 26 is provided below the heating coil 24.
- the infrared sensor 26 detects infrared rays emitted from the bottom surface of the cooking container 22 and transmitted through the top plate 23, and outputs a signal corresponding to the bottom surface temperature of the cooking container 22.
- a control circuit 27 formed on a printed wiring board is provided below the heating coil 24 and in the vicinity of the infrared sensor 26.
- the control circuit 27 includes an IGBT that is attached to a heat sink (cooling fin) 36a to be cooled, a semiconductor element 36c (see FIG. 2) such as a rectifier, and an inverter circuit formed by a resonant capacitor 36b and a control unit thereof.
- a high frequency current to be supplied to the coil 24 is generated.
- the control circuit 27 controls the output of the heating coil 24 based on the signal output from the infrared sensor 26.
- the infrared sensor 26 and the control circuit 27 are disposed below the ferrite 25, and the influence of the magnetic flux generated by the heating coil 24 is reduced by the magnetic shielding effect of the ferrite 25. Further, in order to eliminate the influence of magnetic flux leakage to the lower part of the ferrite 25, a magnetic plate having a magnetic shielding effect for blocking the transmission of the magnetic flux, for example, a magnetic shielding plate 28 made of an aluminum plate, has a space on the heating coil 24 side and a control circuit. It is provided between the ferrite 25 and the control circuit 27 so as to partition the space on the 27 side.
- the heating coil 24 and the ferrite 25 are held by a coil base (heating coil holding plate) 29.
- the heating coil 24 is mounted on the upper surface of the coil base 29 and attached by bonding or the like.
- the ferrite 25 may be embedded in the coil base 29 by insert molding, or may be bonded to the lower surface of the coil base 29.
- a heat insulating material 30 made of, for example, ceramic fiber is provided to reduce the thermal effect from the heated cooking vessel 22 to the heating coil 24.
- a coil base 29 is placed on the magnetic shield plate 28, and the heating coil 24 is placed on the coil base 29.
- the magnetic shield plate 28 supports the heating coil 24 from below via the coil base 29.
- the magnetic shield 28 is urged upward by a spring 31 provided on the bottom 21 a of the main body 21. Thereby, the magnetic shield plate 28 presses the heating coil 24 toward the lower surface of the top plate 23 through the heat insulating material 30.
- a space between the magnetic shield plate 28 and the bottom 21 a of the main body 21 forms a cooling air passage 33, a control circuit 27 is disposed in the cooling air passage 33, and the cooling air is controlled along the lower surface of the magnetic shield plate 28. It is sent in the direction of the substrate 27a and the infrared sensor 26.
- a heating element and an infrared sensor 26 constituting a control circuit 27 such as a semiconductor element 36c (see FIG. 2) such as an IGBT and a rectifier, which are fixed and thermally bonded to the heat sink 36a, and a resonance capacitor 36b, are provided in the main body 21. Cooled by the cooling air generated by the blower 32.
- a cylindrical body 34 made of resin is provided between the infrared sensor 26 and the top plate 23 so as to penetrate the magnetic shield plate 28.
- the cylindrical body 34 is integrated with a casing 35 a that covers the infrared sensor 26, and the casing 35 a is fixed to the lower surface of the magnetic shield 26 with a fixing piece (not shown) and screws.
- the infrared sensor 26 is soldered to a printed wiring board 26a in which a detection circuit including an amplification circuit is configured, and the printed wiring board 26a is placed and fixed on a casing 35b.
- the infrared sensor 26 is accommodated in the casing formed by the casing 35a and the casing 35b by fitting the casing 35b to the lower surface opening of the casing 35a.
- the casing 35a is molded integrally with the cylindrical body 34 with resin.
- the casing 35b may be formed of resin or conductive metal. By forming the casing 35b with a conductive metal such as aluminum, it is possible to obtain a magnetic shielding effect of reducing external noise (for example, electromagnetic waves generated by the inverter) that reaches the infrared sensor 26.
- the induction heating cooker shown in the present embodiment extends to the control circuit 27 by a magnetic shield plate 28 that is provided between the ferrite 25 and the control circuit 27 and is formed of a metal plate that shields a magnetic field leaking to the lower portion of the ferrite 25.
- the amount of leakage magnetic flux from the heating coil 24 is reduced to prevent the control circuit 27 from malfunctioning.
- the infrared sensor 26 and the control circuit 27 are both disposed below the magnetic shield 28, and send cooling air from the blower 32 along the lower surface of the magnetic shield 28 toward the infrared sensor 26.
- the magnetic shield 28 is not interposed between the infrared sensor 26 and the control circuit 27, so that the infrared sensor 26 and the control board 27a are not connected.
- the wiring between the wires can be easily routed, and the assemblability can be improved.
- the space formed by the magnetic shield 28 and the bottom 21a of the main body 21 is used as a cooling air passage 33, and the infrared sensor 26 and the control circuit 27 are disposed there. Therefore, the main cooling air passing through the cooling air passage 33 is provided.
- the infrared sensor 26 is cooled, the cooling efficiency of the infrared sensor 26 is improved, and accurate temperature detection is possible.
- the cylindrical body 34 is provided between the infrared sensor 26 and the top plate 23 so as to pass through the magnetic shielding plate 28 so that infrared rays pass through the cylindrical body 34.
- the cylindrical body 34 By approaching the lower end surface of the container 34 to the vicinity of the infrared sensor 26 and bringing the upper end surface of the cylinder 34 close to the top plate 23, light entering the vicinity of the infrared sensor 26 from a portion other than the portion where the temperature of the cooking container 22 is to be measured is blocked. Instability of the output of the infrared sensor 26 due to the influence of ambient light can be suppressed.
- the lower end face of the cylinder 34 can be brought close to the vicinity of the infrared sensor 26 and the upper end face of the cylinder 34 can be brought close to the top plate 23. Therefore, the degree of freedom of arrangement of the infrared sensor 26 in the vertical direction. As a result, it becomes possible to arrange in a place with high wind speed, and it becomes easy to optimize the cooling performance.
- the cylindrical body 34 has an integrated structure that is continuous above and below the magnetic shielding plate 28.
- the cylindrical body 34 may be divided at the top and bottom of the magnetic shielding plate 28, for example. In short, a desired effect can be obtained if continuous holes are formed above and below the magnetic shield plate 28.
- FIG. 2 of the first embodiment is denoted by the same reference numerals.
- the cooling air that cools the (cooling fins) 36a flows in parallel as indicated by the arrows in the figure.
- the infrared sensor 26 and the heat sink 36 a are arranged in parallel toward the blower 32.
- FIG. 3 is a plan view of the inside of the cooling air passage of the induction heating cooker according to the third embodiment as viewed from above. Since the basic configuration is the same as that of the second embodiment, a description thereof will be omitted, and the description will focus on the different points. The same components as those in FIG. 2 of the second embodiment are denoted by the same reference numerals.
- the cooling air from the blower 32 passes through a heat generating component cooling duct 32b in order to cool a semiconductor element 36c such as an IGBT or a rectifier which is a heat generating component fixedly joined to the heat sink 36a on the control circuit 27. It flows in the flow direction as shown by the arrows in the figure.
- a duct 32a that guides cooling air toward the infrared sensor 26 is provided separately from the heat generating component cooling duct 32b.
- FIG. 4 is a plan external view of the induction cooking device according to the fourth embodiment viewed from above. Since the basic configuration is the same as that of the first embodiment, the description is omitted, and different points will be mainly described. The same components as those in FIG. 1 of the first embodiment are denoted by the same reference numerals.
- the top plate 23 is provided with four heating zones 40 for placing the cooking vessel 22 and an operation / display unit 41 for heating operation and display at the front.
- a heating coil (not shown) is supported by a magnetic shield plate 28 (indicated by a broken line in the figure) below each heating zone.
- a circular light emitting unit 39 (see FIG. 5) using LEDs and an annular light guide is mounted below the top plate 23. The light is emitted in a circular shape through the light transmitting portion 37 of the top plate 23.
- a process for forming a light shielding film 38 (see FIG. 5) that does not transmit light is applied to the portions other than the light transmitting portion 37 on the lower surface of the top plate 23 by coating or the like.
- the magnetic shield 28 is provided so as to face the light transmitting portion 37.
- the magnetic shielding plate 28 is disposed at a position facing the light transmission portion 37 of the top plate 23, so that disturbance light incident from the light transmission portion 37 of the top plate 23 is blocked by the magnetic shielding plate 28.
- the influence of disturbance light on the infrared sensor 26 below the magnetic shield plate 28 can be reduced, so that stable temperature detection is possible.
- a light-absorbing material such as black paint or black printing
- disturbance light incident from the top plate 23 is shielded. Since the light is absorbed by the plate 28, the effect of blocking ambient light is further enhanced, and more stable temperature detection is possible.
- the light transmitting portion 37 is a circular light emitting portion 39, but it is obvious that the shape, position and purpose of the light transmitting portion 37 are not limited to this.
- FIG. 5 is principal part sectional drawing which shows the structure of the induction heating cooking appliance in 5th Embodiment. Since the basic configuration is the same as that of the first embodiment, the description is omitted, and different points will be mainly described. The same components as those in FIG. 1 of the first embodiment are denoted by the same reference numerals.
- the magnetic shield 28 is supported by a support 31 a attached to the bottom 21 a of the main body, and the coil base 29 is held and biased toward the top plate 23 by a spring 31 b attached to the upper surface of the magnetic shield 28.
- Casings 35a and 35b for housing the infrared sensor 26 are made of aluminum which is a conductive metal material.
- the cylindrical body 34 is integrally formed with the coil base 29 by resin molding.
- the casings 35 a and 35 b are attached to the lower surface side of the coil base 29 by fastening the fixing pieces 35 c of the casing 35 b to the lower surface of the coil base 29 with screws.
- the lower end of the cylindrical body 34 is inserted into a hole 35e provided in the upper surface 35d of the casing 35b, and the lower end thereof is disposed close to the infrared sensor 26 provided at a position lower than the magnetic shield plate 28.
- the casings 35a and 35b are inserted into the holes 28a provided in the magnetic shield plate 28.
- the induction heating cooker in the present embodiment can obtain the same effects as those of the first embodiment. Moreover, since the magnetic-shielding board 28 is fixed, it is easy to assemble. Further, since the infrared sensor 26 is attached to the coil base 29, it can be assembled with the infrared sensor 26 attached to the coil base 29, and assembly and disassembly work are simplified.
- the potential of the conductive casings 35a and 35b is connected to the potential of the detection circuit of the infrared sensor 28.
- the potential of the magnetic shield 28 can be different from the potential of the detection circuit 26a of the infrared sensor 28, for example, the same potential as that of the main body 21, which is often the same potential as the ground.
- the configurations of the first to fifth embodiments can be implemented in combination as appropriate.
- the induction heating cooker according to the present invention improves the performance and assemblability of equipment using an infrared sensor, and can be applied to any device having an infrared sensor.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
Description
図1は、本発明の第1の実施の形態における誘導加熱調理器の構成を示す要部断面図である。
図2は、第2の実施の形態における誘導加熱調理器の冷却風路内を上方から見た平面図である。尚、実施の形態1と基本構成は同じなので説明は省略し、異なる点を中心に説明する。また、実施の形態1の図1と同じ構成部品には同じ符号を付している。
図3は第3の実施の形態における誘導加熱調理器の冷却風路内を上方から見た平面図である。尚、実施の形態2と基本構成は同じなので説明は省略し、異なる点を中心に説明する。また、実施の形態2の図2と同じ構成部品には同じ符号を付している。
図4は第4の実施の形態における誘導加熱調理器の上方から見た平面外観図である。尚、実施の形態1と基本構成は同じなので説明は省略し、異なる点を中心に説明する。また、実施の形態1の図1と同じ構成部品には同じ符号を付している。
図5は第5の実施の形態における誘導加熱調理器の構成を示す要部断面図である。尚、実施の形態1と基本構成は同じなので説明は省略し、異なる点を中心に説明する。また、実施の形態1の図1と同じ構成部品には同じ符号を付している。
21a 本体底部
22 調理容器
23 トッププレート
24 加熱コイル
25 フェライト
26 赤外線センサ
26a プリント配線板(検知回路)
27 制御回路
27a 制御基板
28 防磁板
28a 穴(防磁板)
29 コイルベース(加熱コイル保持板)
31 バネ
31a 支持部
31b バネ
32 送風装置
32a、32b ダクト
33 冷却風路
34 筒体
35a、35b ケーシング
35c 固定片(ケーシング)
35d 上面(ケーシング)
35e 穴(ケーシング)
36a ヒートシンク(冷却フィン)
36b 共振コンデンサ(発熱部品)
36c 半導体素子(発熱部品)
37 光透過部
38 遮光膜
39 発光部
40 加熱ゾーン
41 操作・表示部
Claims (8)
- 本体上面に設けられ調理容器を載置するトッププレートと、前記トッププレートの下部に設けられ前記調理容器を加熱する加熱コイルと、前記加熱コイルの下部に設けられ上方から見て前記加熱コイルの中心から放射状に配置されたフェライトと、前記加熱コイルと前記フェライトを保持する加熱コイル保持板と、前記トッププレートの下部に設けられ前記調理容器から放射される赤外線を検知する赤外線センサと、前記加熱コイルに供給するインバータ回路を駆動し冷却フィンに取り付けられて冷却される半導体素子を含み、前記フェライトの下部に設けられ前記赤外線センサの出力に応じて前記加熱コイルの出力を制御する制御回路と、前記フェライトと前記制御回路の間に設けられ前記フェライトの下部に漏れる磁界を遮蔽する金属板で形成された防磁板と、前記制御回路を冷却する冷却風を送る送風装置と、を備え、前記赤外線センサは前記防磁板よりも低い位置に配置され、前記送風装置は冷却風を前記防磁板の下面に沿って前記赤外線センサの方向に送る構成とした誘導加熱調理器。
- 前記赤外線センサと前記トッププレートとの間に、前記防磁板を貫通する筒体を設け、前記筒体の内部を前記赤外線が通過するようにした請求項1に記載の誘導加熱調理器。
- 前記送風装置から出て前記赤外線センサを冷却する冷却風の流れ方向と前記送風装置から出て前記制御回路の冷却フィンを冷却する冷却風の流れ方向が並行となるように前記赤外線センサと前記冷却フィンとを前記送風装置に向かって並列に配置した請求項1に記載の誘導加熱調理器。
- 前記送風装置から前記赤外線センサに向かって冷却風を導くダクトを前記冷却フィンに並設した請求項3に記載の誘導加熱調理器。
- 前記加熱コイルの外周を取り囲む発光部をさらに備え、前記トッププレートは、前記加熱コイルに対向する部分の下面及びその周辺の下面に光の透過を妨げる遮蔽膜を備え、かつ前記発光部に対向する前記下面の部分において前記遮蔽膜を取り除いて光を透過するようにした光透過部を備え、前記防磁板は、前記光透過部に対向するように構成した請求項1~4のいずれか1項に記載の誘導加熱調理器。
- 前記遮蔽膜を光吸収性の塗膜とした請求項5に記載の誘導加熱調理器。
- 前記赤外線センサを収納するとともに前記コイル保持板の下面側に取り付けられるケーシングを備え、前記ケーシングは前記防磁板を貫通する構成とした請求項1に記載の誘導加熱調理器。
- 前記ケーシングは、導電金属材料で形成されるとともに前記赤外線センサの出力を検知する検知回路に接続され、かつ前記防磁板と電気的に絶縁されてなる請求項7に記載の誘導加熱調理器。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980118901.8A CN102037781B (zh) | 2008-05-27 | 2009-05-26 | 感应加热烹调器 |
US12/994,051 US8853599B2 (en) | 2008-05-27 | 2009-05-26 | Induction heating cooking apparatus |
ES09754425.8T ES2693698T3 (es) | 2008-05-27 | 2009-05-26 | Aparato de cocción de calentamiento por inducción |
EP09754425.8A EP2288231B1 (en) | 2008-05-27 | 2009-05-26 | Induction heating cooking apparatus |
CA2724498A CA2724498C (en) | 2008-05-27 | 2009-05-26 | Induction heating cooking apparatus |
HK11111105.6A HK1157119A1 (en) | 2008-05-27 | 2011-10-18 | Induction heating cooking apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-137584 | 2008-05-27 | ||
JP2008137584A JP5136210B2 (ja) | 2008-05-27 | 2008-05-27 | 誘導加熱調理器 |
JP2008-139195 | 2008-05-28 | ||
JP2008139195A JP5239515B2 (ja) | 2008-05-28 | 2008-05-28 | 誘導加熱調理器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009144916A1 true WO2009144916A1 (ja) | 2009-12-03 |
Family
ID=41376806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/002309 WO2009144916A1 (ja) | 2008-05-27 | 2009-05-26 | 誘導加熱調理器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8853599B2 (ja) |
EP (1) | EP2288231B1 (ja) |
CN (1) | CN102037781B (ja) |
CA (1) | CA2724498C (ja) |
ES (1) | ES2693698T3 (ja) |
HK (1) | HK1157119A1 (ja) |
WO (1) | WO2009144916A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011258482A (ja) * | 2010-06-11 | 2011-12-22 | Hitachi Appliances Inc | 誘導加熱調理器 |
JP2012009305A (ja) * | 2010-06-25 | 2012-01-12 | Mitsubishi Electric Corp | 誘導加熱調理器 |
JP2015023028A (ja) * | 2013-07-16 | 2015-02-02 | ショット アクチエンゲゼルシャフトSchott AG | 光エレメントを備えた調理器 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5077268B2 (ja) * | 2009-03-04 | 2012-11-21 | パナソニック株式会社 | 誘導加熱装置 |
US9867237B2 (en) | 2009-03-19 | 2018-01-09 | Panasonic Intellectual Property Management Co., Ltd. | Induction heating cooker |
CN102577598B (zh) * | 2009-10-23 | 2014-07-16 | 松下电器产业株式会社 | 感应加热装置 |
ES2394371B1 (es) * | 2009-12-21 | 2013-12-11 | Bsh Electrodomésticos España, S.A. | Campo de cocción por inducción con al menos un inductor y un dispositivo de mando, y procedimiento para fabricar un campo de cocción por inducción. |
US9568369B2 (en) * | 2011-11-11 | 2017-02-14 | Turbochef Technologies, Inc. | IR temperature sensor for induction heating of food items |
JP2013192391A (ja) * | 2012-03-14 | 2013-09-26 | Sony Corp | 検知装置、受電装置、送電装置及び非接触給電システム |
US20160014849A1 (en) * | 2013-01-14 | 2016-01-14 | Breville Pty Limited | Multi Cooker |
DE102013102107A1 (de) * | 2013-03-04 | 2014-09-18 | Miele & Cie. Kg | Kocheinrichtung und Verfahren zum Betreiben |
CN104125668B (zh) * | 2013-04-28 | 2019-06-21 | 海尔集团技术研发中心 | 厨房无线电能发射器风冷结构 |
WO2015025523A1 (ja) * | 2013-08-22 | 2015-02-26 | パナソニックIpマネジメント株式会社 | 誘導加熱調理器 |
JP6106612B2 (ja) * | 2014-01-22 | 2017-04-05 | 日立アプライアンス株式会社 | 誘導加熱調理器 |
JP6219229B2 (ja) * | 2014-05-19 | 2017-10-25 | 東京エレクトロン株式会社 | ヒータ給電機構 |
EP3094159B1 (en) * | 2015-05-14 | 2018-03-28 | Whirlpool Corporation | Induction cooking hob |
KR102363540B1 (ko) * | 2015-07-13 | 2022-02-17 | 삼성전자주식회사 | 조리 기기 |
CN105376886B (zh) * | 2015-10-28 | 2019-06-18 | 上海钛舜工业科技有限公司 | 电磁加热结构及加热设备 |
US10426292B2 (en) * | 2016-04-28 | 2019-10-01 | The Vollrath Company, L.L.C. | Temperature regulation device |
US11399656B2 (en) | 2016-04-28 | 2022-08-02 | The Vollrath Company, L.L.C. | Temperature regulation device |
ES2646441B1 (es) * | 2016-06-09 | 2019-02-07 | Bsh Electrodomesticos Espana Sa | Dispositivo de medicion de aparato de coccion |
US10356853B2 (en) | 2016-08-29 | 2019-07-16 | Cooktek Induction Systems, Llc | Infrared temperature sensing in induction cooking systems |
US11665790B2 (en) * | 2016-12-22 | 2023-05-30 | Whirlpool Corporation | Induction burner element having a plurality of single piece frames |
ES2684128B1 (es) | 2017-03-30 | 2019-07-29 | Bsh Electrodomesticos Espana Sa | Dispositivo de aparato doméstico y procedimiento para la fabricación de un dispositivo de aparato doméstico |
WO2018229967A1 (ja) * | 2017-06-16 | 2018-12-20 | 三菱電機株式会社 | 誘導加熱調理器およびセンサユニット |
KR102633797B1 (ko) | 2018-08-31 | 2024-02-06 | 엘지전자 주식회사 | 사용 편의성이 개선된 유도 가열 방식의 쿡탑 |
KR20210106071A (ko) * | 2020-02-19 | 2021-08-30 | 엘지전자 주식회사 | 사용 편의성이 개선된 유도 가열 방식의 쿡탑 |
KR20210105777A (ko) * | 2020-02-19 | 2021-08-27 | 엘지전자 주식회사 | 사용 편의성이 개선된 유도 가열 방식의 쿡탑 |
US11871499B2 (en) | 2020-11-05 | 2024-01-09 | Whirlpool Corporation | Induction cooking apparatus with heatsink and method of assembly |
USD1000206S1 (en) | 2021-03-05 | 2023-10-03 | Tramontina Teec S.A. | Cooktop or portion thereof |
USD1000205S1 (en) | 2021-03-05 | 2023-10-03 | Tramontina Teec S.A. | Cooktop or portion thereof |
US20240324076A1 (en) * | 2021-07-16 | 2024-09-26 | Lg Electronics Inc. | Shield device, induction heating type cooktop, and induction heating type cooktop system including same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5322289B1 (ja) * | 1971-04-06 | 1978-07-07 | ||
JP2004273303A (ja) | 2003-03-10 | 2004-09-30 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
JP2005026162A (ja) * | 2003-07-04 | 2005-01-27 | Matsushita Electric Ind Co Ltd | 誘導加熱装置 |
JP2005122962A (ja) * | 2003-10-15 | 2005-05-12 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
JP2005149829A (ja) * | 2003-11-13 | 2005-06-09 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
JP2005216586A (ja) * | 2004-01-28 | 2005-08-11 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
WO2008075673A1 (ja) * | 2006-12-18 | 2008-06-26 | Panasonic Corporation | 誘導加熱調理器 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4151387A (en) | 1971-04-06 | 1979-04-24 | Environment/One Corporation | Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation |
US3887781A (en) | 1971-04-06 | 1975-06-03 | Environment One Corp | Metal base cookware induction heating apparatus having improved control circuit using infra-red temperature sensor |
US3953783A (en) | 1971-04-06 | 1976-04-27 | Environment/One Corporation | Low cast chopper inverter power supply and gating circuit therefor |
DE4208252A1 (de) * | 1992-03-14 | 1993-09-16 | Ego Elektro Blanc & Fischer | Induktive kochstellenbeheizung |
JP3445741B2 (ja) * | 1998-06-08 | 2003-09-08 | 松下電器産業株式会社 | 組み込み式誘導加熱調理器 |
EP2101545B1 (en) * | 1999-12-02 | 2015-04-22 | Panasonic Corporation | Induction-heating cooking device |
JP2001355852A (ja) * | 2001-04-16 | 2001-12-26 | Sanyo Electric Co Ltd | 加熱調理装置 |
US6969834B2 (en) | 2001-07-03 | 2005-11-29 | Matsushita Electric Industrial Co., Ltd. | Line type luminous device and induction heating cooker employing same |
JP2004063451A (ja) * | 2002-06-07 | 2004-02-26 | Ishizuka Electronics Corp | 誘導加熱調理器の放射温度検知装置および該装置用演算装置 |
KR101291428B1 (ko) * | 2006-12-14 | 2013-07-30 | 엘지전자 주식회사 | 조리기기 |
-
2009
- 2009-05-26 US US12/994,051 patent/US8853599B2/en active Active
- 2009-05-26 EP EP09754425.8A patent/EP2288231B1/en active Active
- 2009-05-26 WO PCT/JP2009/002309 patent/WO2009144916A1/ja active Application Filing
- 2009-05-26 CA CA2724498A patent/CA2724498C/en active Active
- 2009-05-26 CN CN200980118901.8A patent/CN102037781B/zh active Active
- 2009-05-26 ES ES09754425.8T patent/ES2693698T3/es active Active
-
2011
- 2011-10-18 HK HK11111105.6A patent/HK1157119A1/xx unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5322289B1 (ja) * | 1971-04-06 | 1978-07-07 | ||
JP2004273303A (ja) | 2003-03-10 | 2004-09-30 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
JP2005026162A (ja) * | 2003-07-04 | 2005-01-27 | Matsushita Electric Ind Co Ltd | 誘導加熱装置 |
JP2005122962A (ja) * | 2003-10-15 | 2005-05-12 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
JP2005149829A (ja) * | 2003-11-13 | 2005-06-09 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
JP2005216586A (ja) * | 2004-01-28 | 2005-08-11 | Matsushita Electric Ind Co Ltd | 誘導加熱調理器 |
WO2008075673A1 (ja) * | 2006-12-18 | 2008-06-26 | Panasonic Corporation | 誘導加熱調理器 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2288231A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011258482A (ja) * | 2010-06-11 | 2011-12-22 | Hitachi Appliances Inc | 誘導加熱調理器 |
JP2012009305A (ja) * | 2010-06-25 | 2012-01-12 | Mitsubishi Electric Corp | 誘導加熱調理器 |
JP2015023028A (ja) * | 2013-07-16 | 2015-02-02 | ショット アクチエンゲゼルシャフトSchott AG | 光エレメントを備えた調理器 |
Also Published As
Publication number | Publication date |
---|---|
US8853599B2 (en) | 2014-10-07 |
CN102037781A (zh) | 2011-04-27 |
CA2724498C (en) | 2015-06-16 |
EP2288231A1 (en) | 2011-02-23 |
CA2724498A1 (en) | 2009-12-03 |
HK1157119A1 (en) | 2012-06-22 |
US20110073588A1 (en) | 2011-03-31 |
ES2693698T3 (es) | 2018-12-13 |
EP2288231A4 (en) | 2014-02-26 |
CN102037781B (zh) | 2013-10-02 |
EP2288231B1 (en) | 2018-08-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009144916A1 (ja) | 誘導加熱調理器 | |
JP5398821B2 (ja) | 誘導加熱調理器 | |
JP4864129B2 (ja) | 誘導加熱調理器 | |
JP4125646B2 (ja) | 誘導加熱装置 | |
JP5136210B2 (ja) | 誘導加熱調理器 | |
JP4917923B2 (ja) | 誘導加熱調理器 | |
JP2009289424A5 (ja) | ||
JPWO2015025523A1 (ja) | 誘導加熱調理器 | |
JP5469822B2 (ja) | 誘導加熱調理器 | |
JP5417855B2 (ja) | 誘導加熱調理器 | |
JP2010170697A5 (ja) | ||
JP5239515B2 (ja) | 誘導加熱調理器 | |
JP2009289522A5 (ja) | ||
WO2012147335A1 (ja) | 誘導加熱調理器 | |
JP5206336B2 (ja) | 誘導加熱調理器 | |
JP5851362B2 (ja) | 誘導加熱調理器 | |
JP5210967B2 (ja) | 誘導加熱調理器 | |
JP6131467B2 (ja) | 誘導加熱調理器 | |
JP2010114017A5 (ja) | ||
JP6866511B2 (ja) | 誘導加熱調理器 | |
JP2010129174A (ja) | 誘導加熱調理器 | |
CN108937534A (zh) | 一种感应加热炊具 | |
JP2021005440A (ja) | 誘導加熱調理器 | |
JP2009259836A (ja) | 誘導加熱調理器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980118901.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09754425 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009754425 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2724498 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12994051 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |