WO2018003546A1 - Dispositif chauffant haute-fréquence - Google Patents

Dispositif chauffant haute-fréquence Download PDF

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Publication number
WO2018003546A1
WO2018003546A1 PCT/JP2017/022304 JP2017022304W WO2018003546A1 WO 2018003546 A1 WO2018003546 A1 WO 2018003546A1 JP 2017022304 W JP2017022304 W JP 2017022304W WO 2018003546 A1 WO2018003546 A1 WO 2018003546A1
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WO
WIPO (PCT)
Prior art keywords
frequency
surface wave
frequency power
heated
excitation
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PCT/JP2017/022304
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English (en)
Japanese (ja)
Inventor
岡島　利幸
大森　義治
吉野　浩二
宇野　博之
上島　博幸
Original Assignee
パナソニックＩｐマネジメント株式会社
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Ｉｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN201780035541.XA priority Critical patent/CN109315029B/zh
Priority to JP2018525054A priority patent/JP6956326B2/ja
Priority to EP17819906.3A priority patent/EP3481149B1/fr
Publication of WO2018003546A1 publication Critical patent/WO2018003546A1/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
    • H05B6/64—Heating using microwaves
    • H05B6/70—Feed lines
    • H05B6/707—Feed lines using waveguides

Definitions

  • the present invention relates to a high frequency heating apparatus including a surface wave exciter using a periodic structure.
  • Patent Document 1 Conventionally, a technique relating to a high-frequency heating device that supplies high-frequency power to a surface wave exciter using a periodic structure and heats an object to be heated such as food has been disclosed (for example, see Patent Document 1).
  • the high-frequency heating device of Patent Document 1 includes an impedance variable unit that temporally changes the impedance of the terminal portion of the crossed finger tape line (surface wave line).
  • the variable impedance unit moves the portion that emits strong energy by changing the standing wave distribution with time. Thereby, the whole food is efficiently heated.
  • the high-frequency heating device changes the standing wave distribution of the cross-finger tape line (surface wave line) by changing the impedance of the terminal part of the cross-finger tape line (surface wave line), Change impedance in time. Thereby, the standing wave distribution is changed with time, and the whole food is heated.
  • the conventional high-frequency heating device cannot change the radiation distribution of the high-frequency power in the thickness direction of the object to be heated.
  • the present invention provides a high-frequency heating device that can change the heating state of the heated portion by changing the radiation distribution of the high-frequency power to the heated object.
  • the high-frequency heating device of the present invention includes a high-frequency power generator that generates high-frequency power, a surface wave exciter that propagates high-frequency power by surface waves to heat an object to be heated, and high-frequency power that is used as a surface wave exciter.
  • a high-frequency power supply unit for supplying and an installation table for installing an object to be heated are provided.
  • the high frequency power generator sets the magnitude relationship between the frequency of the high frequency power supplied to the surface wave exciter and the excitation frequency of the surface wave exciter according to the desired surface concentration of the high frequency power near the surface wave exciter. Then, the object to be heated is heat-treated.
  • the magnitude relationship between the frequency of the high frequency power supplied to the surface wave exciter and the excitation frequency of the surface wave exciter is set in the thickness direction of the object to be heated in accordance with a desired heating state.
  • FIG. 1 is a block diagram showing the basic configuration of the high-frequency heating device of the present embodiment.
  • FIG. 2 is a block diagram illustrating a configuration of a high-frequency power supply unit of the high-frequency heating device.
  • FIG. 3A is a diagram illustrating an example of the heating operation of the object to be heated when the surface concentration of the electric field by the surface wave exciter of the high-frequency heating device is high.
  • FIG. 3B is a diagram illustrating an example of the heating operation of the object to be heated when the surface concentration of the electric field by the surface wave exciter of the high-frequency heating device is low.
  • FIG. 1 is a block diagram showing the basic configuration of the high-frequency heating device of the present embodiment.
  • FIG. 2 is a block diagram illustrating a configuration of a high-frequency power supply unit of the high-frequency heating device.
  • FIG. 3A is a diagram illustrating an example of the heating operation of the object to be heated when the surface concentration of the electric field by the surface wave exciter of the high
  • FIG. 4A is a graph showing an example of a change in the surface concentration of the electric field with respect to the distance from the surface wave exciter when the frequency of the high frequency power of the high frequency heating apparatus is equal to the excitation frequency of the surface wave exciter.
  • FIG. 4B is a graph showing an example of a change in the surface concentration of the electric field with respect to the distance from the surface wave excitation body when the frequency of the high frequency power of the high frequency heating apparatus is lower than the excitation frequency of the surface wave excitation body.
  • FIG. 4C is a graph showing an example of a change in the surface concentration of the electric field with respect to the distance from the surface wave excitation body when the frequency of the high frequency power of the high frequency heating apparatus is higher than the excitation frequency of the surface wave excitation body.
  • FIG. 1 is a block diagram showing the basic configuration of the high-frequency heating device 100 of the present embodiment.
  • the high-frequency heating device 100 includes a surface wave exciter 103, a high-frequency power supply unit 110, a high-frequency power generation unit 120, an installation base 101 on which an object to be heated 102 is placed, and the like.
  • the high-frequency heating device 100 heats an object to be heated 102 installed on the installation table 101.
  • the frequency of the high-frequency power generated by the high-frequency power generation unit 120 and the excitation frequency of the surface wave exciter 103 are set so as to have a relationship between frequencies intended in advance. .
  • the intended frequency relationship is set so that the object to be heated 102 is heat-treated in a desired heating state.
  • the high frequency heating apparatus 100 shown in FIG. 1 has illustrated as an example the structure which has one surface wave excitation body, a high frequency electric power supply part, and a high frequency electric power generation part, respectively, it is not restricted to this.
  • the numbers of surface wave exciters, high frequency power supply units, and high frequency power generation units are not limited to the above numbers.
  • the high-frequency heating device 100 operates as follows.
  • the high frequency power generation unit 120 generates high frequency power.
  • the generated high frequency power is supplied to the surface wave exciter 103 through the high frequency power supply unit 110.
  • the supplied high frequency power is propagated or radiated in the vicinity of the surface wave exciter 103 by surface waves. Thereby, the article to be heated 102 placed on the installation table 101 is heated.
  • the high-frequency heating device 100 of the present embodiment is configured and operates.
  • the high-frequency power generation unit 120 includes a high-frequency transmitter that outputs a high-frequency power having a frequency (for example, a microwave) and power suitable for the heat treatment of the article to be heated 102.
  • a high-frequency transmitter that outputs a high-frequency power having a frequency (for example, a microwave) and power suitable for the heat treatment of the article to be heated 102.
  • the high-frequency transmitter includes, for example, a magnetron and an inverter power supply circuit, a solid oscillator and a power amplifier.
  • Magnetron is a type of oscillation vacuum tube that generates a powerful non-coherent microwave that is a type of radio wave, and is often used for high-power applications of several hundred watts to several kilowatts such as radar and microwave ovens. A high voltage of several kilovolts is required for driving the magnetron. Therefore, an inverter power supply circuit is generally used as a drive power source for the magnetron.
  • the inverter power supply circuit includes a converter circuit having a rectifying function, and an inverter circuit having a step-up (or step-down) function and an output frequency conversion function.
  • the inverter power supply circuit is a technique widely used for lighting devices and motor control.
  • the solid-state oscillator is composed of a semiconductor oscillation circuit including a transistor and a feedback circuit having high-frequency electronic components such as a capacitor, an inductor, and a resistor. Note that the solid-state oscillator is a technique widely used for oscillators for low power output applications such as communication devices.
  • solid-state oscillators that output high-frequency power of about 50 watts, but generally oscillators that output high-frequency power of about several tens of milliwatts to several hundred milliwatts. Therefore, it cannot be used for heat treatment applications that require output power of several hundred watts. Therefore, a solid-state oscillator is usually used with a power amplifier composed of a transistor that amplifies the output high-frequency power.
  • the high frequency power supply unit 110 corresponds to a power connection unit that supplies the high frequency power generated by the high frequency power generation unit 120 to the surface wave exciter 103.
  • the configuration of the high frequency power supply unit 110 will be described later.
  • the surface wave exciter 103 is composed of a metal periodic structure in which impedance elements are periodically arranged with a metal plate, a dielectric plate, or the like.
  • a metal periodic structure for example, a stub type surface wave exciter or an interdigital type surface wave exciter is used.
  • a stub type surface wave exciter is formed on a metal flat plate as shown in FIG. 1 by arranging a plurality of metal flat plates at regular intervals in a direction to stand toward an object to be heated.
  • the interdigital surface acoustic wave exciter is formed by punching a metal flat plate like a cross finger.
  • the dielectric plate an alumina plate or a bakelite plate is used.
  • the excitation frequency of the surface wave exciter 103 is determined by the material used, the physical structure dimensions, and the like.
  • the excitation frequency of the surface wave exciter 103 is changed by changing the height dimension of a plurality of metal flat plates arranged on the metal flat plate or the interval dimension of the metal flat plates. Can be made.
  • the excitation frequency of the surface wave exciter 103 increases as the height dimension of the metal flat plate decreases, and increases as the interval dimension of the metal flat plate decreases. Therefore, the surface wave exciter 103 having a desired excitation frequency can be formed by adjusting the height and interval of the metal flat plate.
  • the surface wave exciter 103 concentrates the high frequency power supplied from the high frequency power generation unit 120 via the high frequency power supply unit 110 in the vicinity of the surface and propagates the surface wave through the surface wave. Furthermore, the surface wave exciter 103 can also radiate high-frequency power into a space in the high-frequency heating device 100, for example. As a result, the object to be heated 102 placed on the installation base 101 in the vicinity of the surface wave exciter 103 propagates in the vicinity of the surface of the surface wave exciter 103 by surface waves or is radiated from the surface wave exciter 103. Heated by electric power.
  • FIG. 2 is a block diagram illustrating an example of the configuration of the high-frequency power supply unit 110.
  • the high frequency power supply unit 110 is arranged to guide the high frequency power generated by the high frequency power generation unit 120 to the high frequency power supply unit 110 via the rectangular waveguide 130.
  • the rectangular waveguide 130 is a hollow waveguide mainly used for transmission of electromagnetic waves such as microwaves.
  • the hollow waveguide is a general waveguide and is formed of a metal tube having a square cross section (for example, a rectangle).
  • the electromagnetic wave propagates through the rectangular waveguide 130 while forming an electromagnetic field corresponding to the shape, size, wavelength, or frequency of the rectangular waveguide 130.
  • the high-frequency power propagated from the high-frequency power generation unit 120 is supplied to the surface wave exciter 103 via the rectangular waveguide 130 and the tapered rectangular waveguide 131.
  • the tapered rectangular waveguide 131 suppresses the reflection of the propagating microwave at the junction, thereby reducing the loss.
  • the high-frequency power supply unit 110 includes a part of the rectangular waveguide 130, a tapered rectangular waveguide 131, and a part of the surface wave exciter 103 as indicated by a broken line in FIG. 2.
  • the high frequency power generated by the high frequency power generation unit 120 is guided to the high frequency power supply unit 110 via the rectangular waveguide 130, and the surface wave exciter via the tapered rectangular waveguide 131. 103 is efficiently supplied.
  • the frequency of the high-frequency power generated by the high-frequency power generation unit 120 and the excitation frequency of the surface wave exciter 103 are in a mutually intended relationship. Is set as follows. Thereby, as described later, the object to be heated 102 is heat-treated in a desired heating state.
  • the high-frequency heating device 100 of the present embodiment is configured, and the object to be heated 102 and the like is subjected to heat treatment.
  • 3A and 3B show the operation of heating the object to be heated 102 with the electric field intensity distribution in the vicinity of the surface of the surface wave exciter 103 by the supplied high frequency power when the object to be heated 102 is installed on the installation table 101.
  • An example is shown schematically.
  • FIG. 3A shows the surface wave exciter when the frequency of the high frequency power generated by the high frequency power generator 120 and the excitation frequency of the surface wave exciter 103 are set so that the surface concentration of the high frequency power becomes high.
  • An electric field strength distribution 141 formed in the vicinity of the surface 103 is shown.
  • FIG. 3B shows an electric field intensity distribution 142 formed in the vicinity of the surface of the surface wave exciter 103 when the frequency of the high frequency power and the excitation frequency are set so that the surface concentration degree of the high frequency power is low.
  • the electric field strengths of the electric field strength distributions 141 and 142 are represented by shades of color. In this case, the darker the color, the stronger the electric field.
  • the relationship between the frequency of the high-frequency power and the excitation frequency of the surface wave exciter 103 is set so that the surface concentration of the high-frequency power increases in the vicinity of the surface wave exciter 103. Therefore, the electric field strength near the surface of the surface wave exciter 103 is increased. As a result, the object to be heated 102 is heated strongly and intensively on the surface near the surface wave exciter 103 and the inside on the near side. The electric field strength suddenly decreases as the distance from the surface wave exciter 103 increases. Therefore, the degree of heating of the article 102 to be heated also becomes weak.
  • the relationship between the frequency of the high frequency power and the excitation frequency of the surface wave exciter 103 is set so that the surface concentration of the high frequency power is low in the vicinity of the surface wave exciter 103.
  • the electric field strength in the vicinity of the surface of the surface wave exciter 103 is weak, but the decrease in the electric field strength is small even when the surface wave exciter 103 is separated. Therefore, the surface of the object to be heated 102 that is in contact with the surface wave exciter 103 is not heated intensively. That is, the entire object to be heated 102 is heated relatively uniformly.
  • the high-frequency heating apparatus 100 performs the heat treatment operation of the article to be heated 102 based on the relationship between the frequency of the high-frequency power and the excitation frequency of the surface wave exciter 103.
  • 4A to 4C show the high-frequency power formed in the vicinity of the surface of the surface wave exciter 103 based on the relationship between the frequency fp of the high-frequency power supplied to the surface wave exciter 103 and the excitation frequency fc of the surface wave exciter 103.
  • An example of the change of the surface concentration degree of (electric field) is shown typically.
  • FIGS. 4A to 4C show the distance from the surface of the surface wave excitation body 103 in the relationship between the frequency fp of the high frequency power supplied to the surface wave excitation body 103 and the excitation frequency fc of the surface wave excitation body 103.
  • the change of the electric field strength with respect to is shown in a graph. 4A to 4C, the horizontal axis represents the distance from the surface of the surface wave exciter, and the vertical axis represents the electric field strength. In the figure, the larger the inclination of the graph, the more the electric field is concentrated on the surface of the surface wave exciter 103.
  • FIG. 4A shows the magnitude of the electric field strength with respect to the distance from the surface of the surface wave excitation body 103 when the frequency fp of the high frequency power supplied to the surface wave excitation body 103 is substantially equal to the excitation frequency fc of the surface wave excitation body 103.
  • FIG. 4B shown by the graph 151 shows the magnitude of the electric field strength when the frequency fp of the high-frequency power is lower than the excitation frequency fc.
  • FIG. 4C shows the magnitude of the electric field intensity with a graph 153 when the frequency fp of the high-frequency power is higher than the excitation frequency fc.
  • FIG. 4A when the frequency fp of the high-frequency power and the excitation frequency fc are set to substantially equal frequencies, a graph 151 showing the magnitude of the electric field strength with respect to the distance from the surface of the surface wave exciter 103 is shown.
  • the slope is the largest. That is, the state is similar to FIG. 3A where the electric field is strongly concentrated near the surface of the surface wave exciter 103. Thereby, the surface of the article to be heated 102 is heated intensively. Therefore, the relationship between the frequency fp and the excitation frequency fc is suitable when the surface of the object to be heated 102 is burnt.
  • the slope of the graph 152 becomes gentler than the slope of the graph 151 in FIG. 4A. That is, the concentration of the electric field on the surface of the surface wave exciter 103 is reduced, and the distance that the high frequency power reaches from the surface of the surface wave exciter 103 is increased. Therefore, although the electric field strength in the vicinity of the surface of the surface wave exciter 103 is relatively large, even if the electric field strength is far from the surface of the surface wave exciter 103, the electric field strength does not rapidly decrease. That is, the high-frequency power reaches a place slightly away from the surface of the surface wave exciter 103. Therefore, the relationship between the frequency fp and the excitation frequency fc is suitable for heating the object to be heated 102 so as not to burn.
  • the frequency fp of the high frequency power when the frequency fp of the high frequency power is set to a frequency higher than the excitation frequency fc, the slope of the graph 153 is almost eliminated and a flat electric field strength distribution is obtained. That is, the electric field does not concentrate near the surface of the surface wave exciter 103 but spreads over the entire surface. This means that the high-frequency power supplied to the surface wave exciter 103 is radiated to space without propagating through the surface wave exciter 103 by surface waves. Therefore, the relationship between the frequency fp and the excitation frequency fc is suitable for heating the entire object to be heated 102 relatively uniformly.
  • the high-frequency heating device 100 applies the surface wave exciter 103 to the surface wave exciter 103 according to the surface concentration of the high-frequency power near the surface of the surface wave exciter 103 corresponding to the heating state desired by the user.
  • the magnitude relationship between the frequency fp of the high frequency power to be supplied and the excitation frequency fc of the surface wave exciter 103 is set. Thereby, the propagation state of the high frequency power propagating through the surface wave exciter 103 by the surface wave can be changed. Then, the electric field intensity distribution near the surface of the surface wave exciter 103 changes. As a result, the object to be heated 102 can be heat-treated in a heating state desired by the user.
  • the relationship between the frequency fp and the excitation frequency fc is set so that the frequency fp of the high frequency power supplied to the surface wave excitation body 103 is equal to or lower than the excitation frequency fc of the surface wave excitation body 103.
  • the high-frequency power supplied to the surface wave exciter 103 propagates through the surface wave exciter 103 with surface waves. That is, the high frequency power propagates by the operation in the “surface wave mode”.
  • the surface concentration degree of the high-frequency power propagating through the surface wave exciter 103 with the surface wave can be adjusted by adjusting the level of the frequency fp of the high-frequency power with respect to the excitation frequency fc of the surface wave exciter 103 (difference). .
  • the to-be-heated object 102 can be optimally heat-processed according to the heating state with respect to the thickness direction of the to-be-heated object which a user desires.
  • the relationship between the frequency fp and the excitation frequency fc is set so that the frequency fp of the high frequency power supplied to the surface wave excitation body 103 is higher than the excitation frequency fc of the surface wave excitation body 103.
  • the high frequency power supplied to the surface wave exciter 103 is radiated to the space without propagating through the surface wave exciter 103 by the surface wave. That is, the high frequency power is radiated by the operation in “radiation mode”. Therefore, the whole object to be heated 102 can be heated relatively uniformly.
  • the high-frequency power generation unit 120 of the high-frequency heating device 100 is described as an example of a configuration that generates high-frequency power at a fixed frequency fp, but the present invention is not limited to this.
  • the high frequency power generator 120 may be configured with a frequency variable variable high frequency transmitter so as to generate high frequency power of a set frequency.
  • the frequency variable high frequency oscillator can be realized by using a voltage variable element (for example, a varactor diode) as an element for determining the resonance frequency of the resonance circuit constituting the semiconductor oscillation circuit described above.
  • the variable-frequency high-frequency oscillator is generally called a VCO (Voltage Controlled Oscillator).
  • VCO Voltage Controlled Oscillator
  • a control unit is provided in the high-frequency oscillator, and voltage information corresponding to the frequency is supplied to the VCO. Thereby, the frequency of the high frequency oscillator can be changed.
  • variable-frequency high-frequency oscillator may be a PLL (Phase Locked Loop) oscillator including a reference signal generator and a phase comparator. Since the technology of the PLL oscillator is known, a detailed description is omitted. In this case, a control unit is provided in the PLL oscillator, and an information signal corresponding to the frequency is supplied to the phase comparator. Thereby, the frequency of the PLL oscillator can be changed.
  • PLL Phase Locked Loop
  • the object to be heated 102 can be heat-treated with a simple configuration by changing the heating state in the thickness direction of the object to be heated 102 as desired by the user.
  • the surface wave exciter 103 may be configured with a surface wave exciter that can vary the excitation frequency and that can vary the excitation frequency.
  • the dielectric is mechanically controlled between the metal flat plates arranged at regular intervals on the metal flat plate. Insert. Thereby, the excitation frequency of a surface wave exciter can be changed.
  • the dielectric frequency of the dielectric may be changed by electrical control instead of mechanical control to change the excitation frequency of the surface wave excitation body.
  • the excitation frequency of the surface wave exciter can be changed relatively large. Therefore, the heating state in the thickness direction of the object to be heated can be greatly changed. Thereby, the range of the heating state which a user desires can be expanded and a to-be-heated material can be heat-processed variously.
  • the microwave oven includes at least a heating chamber, a high-frequency power generation unit, a waveguide, a surface wave exciter that constitutes the heating unit, a door, a door choke groove, and the like.
  • the heating chamber is formed in a substantially rectangular parallelepiped shape (including a rectangular parallelepiped shape), and an object to be heated is placed inside.
  • the high frequency power generation unit is configured by a magnetron or the like, and supplies high frequency power into the heating chamber.
  • the high-frequency power generation unit is provided at the lower part of the casing or at the side of the casing.
  • the waveguide supplies microwaves generated by the high-frequency power generator to the heating chamber.
  • the surface wave exciter is provided at the lower part, the back part, or the upper part of the heating chamber and propagates high-frequency power to heat the object to be heated.
  • the door is installed on the front surface of the housing in order to open and close the heating chamber.
  • the door choke groove is provided around the door and prevents leakage of electromagnetic waves such as microwaves.
  • the present invention is not limited to this embodiment. Unless it deviates from the meaning of this invention, the form which carried out the various deformation
  • the high-frequency heating device of the present invention includes a high-frequency power generator that generates high-frequency power, a surface wave exciter that propagates high-frequency power by surface waves and heats an object to be heated, and high-frequency power.
  • a high-frequency power supply unit that supplies the surface wave exciter and an installation table on which an object to be heated is installed.
  • the high frequency power generator sets the magnitude relationship between the frequency of the high frequency power supplied to the surface wave exciter and the excitation frequency of the surface wave exciter according to the desired surface concentration of the high frequency power near the surface wave exciter. Then, the object to be heated is heat-treated.
  • the magnitude relationship between the frequency of the high frequency power supplied to the surface wave exciter and the excitation frequency of the surface wave exciter is set in the thickness direction of the object to be heated according to the heating state desired by the user. To do.
  • a to-be-heated material can be heat-processed in a desired heating state in the thickness direction of a to-be-heated material.
  • the frequency of the high-frequency power supplied to the surface wave excitation body may be set equal to the excitation frequency of the surface wave excitation body or lower than the excitation frequency of the surface wave excitation body.
  • the high-frequency power supplied to the surface wave exciter operates in a “surface wave mode” in which the surface wave propagates in the vicinity of the surface of the surface wave exciter.
  • the side near the surface wave exciter of the object to be heated can be concentrated and heated.
  • the frequency of the high-frequency power supplied to the surface wave excitation body may be set higher than the excitation frequency of the surface wave excitation body.
  • the high-frequency power supplied to the surface wave exciter does not propagate in the vicinity of the surface of the surface wave exciter by the surface wave, but operates in a “radiation mode” that is radiated to the space. Thereby, the whole to-be-heated material can be heated uniformly.
  • the high-frequency power generation unit may be configured by a variable-frequency high-frequency oscillator that generates high-frequency power of a set frequency.
  • the frequency of the high frequency power supplied to the surface wave exciter can be varied.
  • the frequency of the high frequency power can be arbitrarily set with respect to the excitation frequency of the surface wave exciter.
  • the electric field strength distribution formed by the surface wave exciter can be arbitrarily adjusted. Therefore, the object to be heated can be heat-treated in various heating states in the thickness direction of the object to be heated.
  • the surface wave exciter may be constituted by a surface wave exciter having a variable excitation frequency, which can vary the excitation frequency.
  • the excitation frequency of the surface wave excitation body can be varied with respect to the frequency of the high frequency power supplied to the surface wave excitation body.
  • a to-be-heated material can be heat-processed in various heating states in the thickness direction of a to-be-heated material.
  • the present invention is useful for cooking appliances such as a microwave heater in which heat treatment is desired in a desired heating state in the thickness direction of the object to be heated.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

La présente invention comprend : une partie de production d'énergie haute fréquence (120) qui génère de l'énergie haute fréquence ; un corps d'excitation d'onde de surface (103) qui utilise des ondes de surface en vue de propager l'énergie haute fréquence et chauffe ainsi un objet à chauffer (102) ; une partie alimentation électrique haute fréquence (110) qui fournit l'énergie haute fréquence au corps d'excitation d'onde de surface (103) ; et un support de montage (101) destiné au montage de l'objet à chauffer (102). En fonction de la concentration de surface souhaitée d'énergie haute fréquence proche du corps d'excitation d'onde de surface (103), la partie de production d'énergie haute fréquence (120) établit une corrélation d'amplitude entre la fréquence de l'énergie haute fréquence fournie au corps d'excitation d'onde de surface (103) et la fréquence d'excitation du corps d'excitation d'onde de surface (103) et chauffe l'objet à chauffer (102). La présente invention porte ainsi sur un dispositif chauffant haute fréquence (100) qui peut modifier l'état de chauffage dans le sens de l'épaisseur de l'objet à chauffer (102).
PCT/JP2017/022304 2016-06-30 2017-06-16 Dispositif chauffant haute-fréquence WO2018003546A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780035541.XA CN109315029B (zh) 2016-06-30 2017-06-16 高频加热装置
JP2018525054A JP6956326B2 (ja) 2016-06-30 2017-06-16 高周波加熱装置
EP17819906.3A EP3481149B1 (fr) 2016-06-30 2017-06-16 Dispositif chauffant haute-fréquence

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JP2016129566 2016-06-30
JP2016-129566 2016-06-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3780909A4 (fr) * 2018-04-06 2021-05-05 Panasonic Intellectual Property Management Co., Ltd. Dispositif de chauffage haute fréquence
WO2022220160A1 (fr) * 2021-04-12 2022-10-20 パナソニックＩｐマネジメント株式会社 Appareil de chauffage haute fréquence

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JP2015162273A (ja) * 2014-02-26 2015-09-07 パナソニック株式会社 マイクロ波処理装置
JP2015220189A (ja) * 2014-05-21 2015-12-07 パナソニックＩｐマネジメント株式会社 高周波加熱装置

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WO2022220160A1 (fr) * 2021-04-12 2022-10-20 パナソニックＩｐマネジメント株式会社 Appareil de chauffage haute fréquence

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EP3481149A1 (fr) 2019-05-08
EP3481149B1 (fr) 2023-05-10
EP3481149A4 (fr) 2019-07-17
CN109315029B (zh) 2021-12-07
JPWO2018003546A1 (ja) 2019-04-25
CN109315029A (zh) 2019-02-05
JP6956326B2 (ja) 2021-11-02

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