WO2013063985A1 - 半导体微波炉及其微波馈入结构 - Google Patents

半导体微波炉及其微波馈入结构 Download PDF

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Publication number
WO2013063985A1
WO2013063985A1 PCT/CN2012/081383 CN2012081383W WO2013063985A1 WO 2013063985 A1 WO2013063985 A1 WO 2013063985A1 CN 2012081383 W CN2012081383 W CN 2012081383W WO 2013063985 A1 WO2013063985 A1 WO 2013063985A1
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WIPO (PCT)
Prior art keywords
microwave
semiconductor
power source
semiconductor power
cavity
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PCT/CN2012/081383
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English (en)
French (fr)
Inventor
唐相伟
欧军辉
梁春华
Original Assignee
美的集团股份有限公司
广东美的微波电器制造有限公司
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Application filed by 美的集团股份有限公司, 广东美的微波电器制造有限公司 filed Critical 美的集团股份有限公司
Priority to US14/355,270 priority Critical patent/US10015846B2/en
Priority to KR1020147014490A priority patent/KR101570015B1/ko
Priority to EP12845045.9A priority patent/EP2778539B1/en
Publication of WO2013063985A1 publication Critical patent/WO2013063985A1/zh

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/70Feed lines
    • H05B6/705Feed lines using microwave tuning
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/70Feed lines
    • H05B6/702Feed lines using coaxial cables
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6408Supports or covers specially adapted for use in microwave heating apparatus
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/66Circuits
    • H05B6/68Circuits for monitoring or control
    • H05B6/686Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/70Feed lines
    • H05B6/707Feed lines using waveguides
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/80Apparatus for specific applications

Definitions

  • Embodiments of the present invention relate to a semiconductor microwave oven and a microwave feed structure of the semiconductor microwave oven. Background technique
  • Electrodes Traditional magnetron microwave ovens include magnetrons, transformers, high voltage capacitors, high voltage diodes, furnace chambers, furnace doors, and control components. As shown in Fig. 1, the microwave emitted from the magnetron 11' is fed into the cavity 13' of the microwave oven through the rectangular waveguide 12' to heat the food in the furnace chamber 13'.
  • the frequency band of semiconductor microwave technology used for communication is different from the frequency band used for microwave heating.
  • the mode of the microwave output of the semiconductor power source is TE11 and the impedance is 50 ⁇ .
  • the mode of the microwave heated by the microwave oven is the TE10 mode.
  • the present invention solves at least some of the above technical problems or at least provides a useful commercial option.
  • One object of the present invention is to provide a microwave feed structure of a semiconductor microwave oven which is simple in structure, flexible in operation, and widely applicable.
  • Another object of the present invention is to provide a semiconductor microwave oven having the above microwave feeding structure.
  • a microwave feeding structure of a semiconductor microwave oven comprising: a cavity having a furnace door; a semiconductor power source for generating microwaves; and a microwave feeding component, the microwave feeding An input component is coupled between the semiconductor power source and the cavity to feed microwaves generated by the semiconductor power source into the cavity and convert a microwave mode output by the semiconductor power source into microwave heating Microwave mode.
  • the microwave generated by the semiconductor power source can be fed into the cavity of the microwave oven, and the mode of the semiconductor power source output mode TE11 is converted into a mode suitable for microwave heating to be TE10.
  • the microwave has a simple and reasonable structure, flexible operation and wide application range.
  • the semiconductor power source includes: a semiconductor power board, the semiconductor power board is connected to the microwave feeding component; a shielding cover, the shielding cover is disposed above the semiconductor power board; And a heat sink, the heat sink is attached to a bottom surface of the semiconductor power board.
  • a microwave feeding structure of a semiconductor microwave oven according to an embodiment of the present invention further includes a rectangular waveguide connected to the cavity and the t wave feeding component is connected between the semiconductor power source and the rectangular waveguide .
  • the microwave feeding assembly includes: a mounting tube; a ceramic ring, the ceramic ring is connected to the mounting tube; a tube case, the tube case is connected to the ceramic ring; and an antenna The first end of the antenna is coupled to the semiconductor power source and the second end is sequentially inserted through the envelope, the ceramic ring, and the mounting tube into the rectangular waveguide.
  • the mounting tube is sleeved with an antenna cap adjacent to one end of the rectangular waveguide
  • the microwave feeding assembly further includes: a bottom plate, the bottom plate is mounted on the rectangular waveguide, a ceramic tube mounted on one side of the bottom plate and the tube case mounted on the other side of the bottom wall; a first fixing ring, the first fixing ring being mounted on the semiconductor power source; and a second fixing a ring, the second fixing ring is sleeved on the tube shell and connected to the bottom plate and the first fixing ring.
  • the microwave feeding assembly includes: a bottom plate, the bottom plate is mounted on the rectangular waveguide; a first fixing ring, the first fixing ring is connected to the bottom plate and the semiconductor Between the power sources; and a probe, the probe passing through the bottom plate and the first fixing ring, the first end of the probe being connected to the semiconductor power source and the second end extending into the Inside the rectangular waveguide.
  • the first end of the probe is directly connected to the t-band of the semiconductor power source or is connected by a coaxial transmission line.
  • the chopping feed assembly includes an antenna, a first end of the antenna is coupled to the semiconductor power source via a coaxial transmission line, and a second end of the antenna extends into the cavity in vivo.
  • a ceramic plate is disposed in the cavity, the ceramic plate defines a portion of the cavity into a first cavity and a second cavity, and a second end of the antenna extends into the second Inside the cavity.
  • a semiconductor microwave oven includes: a cavity having a furnace door; a semiconductor power source, the semiconductor power source for generating a microwave; a microwave feeding component, the microwave feeding An input component is coupled between the cavity and the semiconductor power source to feed microwaves generated by the semiconductor power source into the cavity and convert a microwave mode output by the semiconductor power source into a microwave suitable for microwave heating And a power source coupled to the semiconductor power source.
  • the microwave is generated by the semiconductor power source, and the microwave of the mode TE11 outputted by the semiconductor power source 42 is converted into the microwave of the mode TE10 suitable for microwave heating by the microwave feeding component, the semiconductor microwave oven
  • the efficiency is high, the structure is simple, the cost is low, the weight is light, and the power density per unit volume is large.
  • the semiconductor power source includes: a semiconductor power board, the semiconductor power board is connected to the microwave feeding component; a shielding cover, the shielding cover is disposed above the semiconductor power board; And a heat sink, the heat sink is attached to a bottom surface of the semiconductor power board.
  • a semiconductor oven according to an embodiment of the present invention further includes a rectangular waveguide connected to the cavity and the microwave feed assembly is coupled between the semiconductor power source and the rectangular waveguide.
  • the drum wave feeding assembly includes: a mounting tube; a ceramic ring, the ceramic ring is connected to the mounting tube; and a tube case, the tube case is connected to the ceramic ring; An antenna, the first end of the antenna being coupled to the semiconductor power source and the second end extending through the envelope, the ceramic ring, and the mounting tube into the rectangular waveguide.
  • the mounting tube is sleeved with an antenna cap adjacent to one end of the rectangular waveguide
  • the microwave feeding assembly further includes: a bottom plate, the bottom plate is mounted on the rectangular waveguide, a ceramic tube mounted on one side of the bottom plate and the tube case mounted on the other side of the bottom wall; a first fixing ring, the first fixing ring being mounted on the semiconductor power source; and a second fixing a ring, the second fixing ring is sleeved on the tube shell and connected to the bottom plate and the first fixing ring.
  • the microwave feeding assembly includes: a bottom plate, the bottom plate is mounted on the rectangular waveguide; a first fixing ring, the first fixing ring is connected to the bottom plate and the semiconductor Between the power sources; and a probe, the probe passing through the bottom plate and the first fixing ring, the first end of the probe being connected to the semiconductor power source and the second end extending into the Inside the rectangular waveguide.
  • the first end of the probe is directly connected to the t-band of the semiconductor power source or is connected by a coaxial transmission line.
  • the wave feeding component includes an antenna, a first end of the antenna is connected to the semiconductor power source through a coaxial transmission line, and a second end of the antenna extends into the cavity in vivo.
  • a ceramic plate is disposed in the cavity, and the ceramic plate is formed into a part of the cavity a first cavity and a second cavity, a first end of the antenna being coupled to the semiconductor power source and a second end of the antenna extending into the second cavity.
  • Figure 1 is a schematic view of a conventional microwave oven having a magnetron
  • FIG. 2 is a schematic exploded view of a semiconductor microwave oven according to a first embodiment of the present invention
  • FIG. 3 is a side elevational view of a semiconductor microwave oven in accordance with a first embodiment of the present invention
  • FIG. 4 is a partial schematic view of a microwave feed assembly of a semiconductor microwave oven according to a first embodiment of the present invention, wherein the microwave feed assembly is similar to a magnetron output assembly of a conventional microwave oven;
  • Figure 5 is a side elevational view of a semiconductor microwave oven in accordance with a second embodiment of the present invention.
  • FIG. 6 is a partial schematic view of a microwave feed assembly of a semiconductor microwave oven according to a second embodiment of the present invention
  • FIG. 7 is a schematic view of a semiconductor microwave oven according to a third embodiment of the present invention.
  • first and second are used merely to describe U, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first”, “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly stated and defined.
  • Connected, or integrally connected may be mechanically connected or electrically connected; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal to the two elements.
  • the specific meaning of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise explicitly defined and defined. It is not in direct contact but through additional features between them.
  • the first feature “above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.
  • a microwave feed structure of a semiconductor microwave oven includes a cavity 26, a semiconductor The body power source 42 and the t wave are fed into the assembly.
  • the cavity 26 has a furnace door 25 for opening or closing the opening of the cavity 26.
  • a semiconductor power source 42 is used to generate a wave
  • the t-wave feed assembly is coupled to the semiconductor power source 42 and the cavity 26 to feed microwaves generated by the semiconductor power source 42 into the cavity 26 and to source the semiconductor power source.
  • the microwave mode of the 42 output is converted to a microwave mode suitable for microwave heating to heat the food within the cavity 26.
  • a DC power source 20 is coupled to the semiconductor power source 42 for powering the semiconductor power source 42.
  • the microwave generated by the semiconductor power source 42 can be fed into the cavity 26, that is, the microwave power conversion of the semiconductor power source 42 by the microwave feeding component is TE11.
  • the microwave mode is a microwave of TE10, and the microwave oven generates microwaves, and the microwave oven has high heating efficiency, simple structure, low cost, light weight, large power density per unit volume, simple and reasonable structure, and flexible operation. , Wide range of applications.
  • the semiconductor power source 42 includes a semiconductor power board 30; a shield 31 and a heat sink 33.
  • the shield 31 is disposed above the semiconductor power board 30 for shielding the semiconductor power board 30, the semiconductor power board 30 is connected to the microwave feeding component, and the heat sink 33 is placed on the bottom surface of the semiconductor power board 30 for dissipating heat generated by the semiconductor power board 30.
  • a cooling fan 24 is provided on the cavity 26 for heat dissipation.
  • the semiconductor power source 42 feeds the microwave generated by the semiconductor power board 30 into the cavity 26 through the microwave feed assembly, and converts the microwave of the mode TE11 outputted by the semiconductor power source 42 into a mode suitable for microwave heating. It is a 3 ⁇ 4 wave of TE10, thus achieving semiconductor microwave heating.
  • the semiconductor power board 30 is provided with a UM0S tube, a bias and control circuit, a power combiner, a power detection and control circuit.
  • a switching power supply, a battery or a charger is provided between the semiconductor power source 42 and the external AC power source for voltage conversion.
  • the bias voltage and control circuit includes a semiconductor power source output power detecting circuit, a semiconductor power source reflected power detecting circuit, a semiconductor power source turn-off signal circuit, a DC+ input circuit of the semiconductor power source, and a DC-input circuit of the semiconductor power source.
  • the required voltage of the semiconductor power source is DC 0-32V.
  • the working principle of the semiconductor power board 30 is: a certain power size and number of L-legs
  • the OS tube generates a microwave of a frequency of 2450 MHz ⁇ 50 MHz through a self-oscillating circuit.
  • the frequency can also be changed.
  • the standing wave ratio is selected in the range of 2400MHz-2500MHz. The minimum frequency is used for heating.
  • the microwave feed structure of the semiconductor microwave oven includes a cavity 26 with a furnace door 25, a semiconductor power source 42, a rectangular waveguide 27, and a t wave feed assembly 45.
  • the rectangular waveguide 27 is mounted on the furnace body 26.
  • the semiconductor power board 30 of the semiconductor power source 42 is connected to the microwave feed assembly 45, and may be directly connected or connected via a coaxial transmission line 46, and connected through the coaxial transmission line 46.
  • An N-type connector is mounted on the semiconductor power board 30 for converting the microstrip output into a coaxial output, and the coaxial transmission line 46 is connected to the semiconductor power board 30 through an N-type connector.
  • the heat sink 33 is in close contact with the bottom surface of the semiconductor power board 30.
  • the shield 31 is located between the semiconductor power board 30 and the outer casing of the semiconductor microwave oven.
  • the microwave feed assembly 45 is connected to the rectangular waveguide 27 so that the microwave generated by the semiconductor power source 42 passes through The wave feedthrough assembly 45 and the rectangular waveguide 27 are fed into the cavity 26.
  • the microwave feed assembly 45 is similar to the magnetron output assembly of a conventional microwave oven having a magnetron. Therefore, it is convenient to modify the conventional microwave oven having the magnetron for the semiconductor power source 42 to replace the magnetron of the conventional microwave oven, and to appropriately change the magnetron output assembly, the semiconductor microwave oven can be obtained without the need for a conventional microwave oven. Make other changes and reduce costs.
  • the microwave feed assembly 45 includes a mounting tube 56, a ceramic ring 57, a bulb 58 and an antenna 51.
  • One end of the ceramic ring 57 is connected to the mounting tube 56, and the other end of the ceramic ring 57 is connected.
  • the first end of the antenna 51 (the right end in FIG. 4) is connected to the semiconductor power source 42 and the second end (in FIG. 4).
  • the left end extends through the envelope 58, the ceramic ring 57 and the mounting tube 56 into the rectangular waveguide 27 in sequence.
  • the antenna 51 converts the microwave output of the TE11 mode semiconductor power board 30 into a TE10 mode suitable for microwave heating and feeds into the cavity 26.
  • the mounting tube 56 is disposed adjacent to one end of the rectangular waveguide 27 (the left end in FIG. 4) with an antenna cap 55, and the microwave feeding assembly 45 further includes a bottom plate 54, first The retaining ring 52 and the second retaining ring 53.
  • the bottom plate 54 is mounted on a rectangular waveguide 27 mounted on one side of the bottom plate 54 (left side in Fig. 4) and the tube case 58 is mounted on the other side of the bottom plate 54 (the first fixed ring on the right side in Fig. 4)
  • the second fixing ring 53 is mounted on the casing 58 and is connected to the bottom plate 54 and the first fixing ring 52.
  • first fixing ring 52 and the second fixing ring 53 can be fixed together by screws, and the screw passes through the through hole in the second fixing ring 53 and is screwed into the threaded hole on the first fixing ring 52, thereby achieving the first
  • the retaining ring (52) is coupled to the second retaining ring (53).
  • the bottom plate 54 is fixed to the second fixing ring 53 by screws.
  • the first retaining ring 52 and the second retaining ring 53 connect the microwave feed assembly 45 to the semiconductor power source 42.
  • a filler such as Teflon may be filled, and a stopper 59 is provided on the right side of the first fixing ring 52 for stopping the first fixing ring 52. And the filler.
  • the antenna 51 converts the microwave of the mode TE11 outputted by the semiconductor power board 30 into a microwave of a mode TE10 suitable for microwave heating, and feeds the cavity into the cavity through the rectangular waveguide 27.
  • the structure is simple, the cost is reduced, and the conventional microwave oven with the magnetron can be modified to obtain a semiconductor microwave oven, and the other structure of the microwave oven does not need to be changed, thereby further reducing the cost.
  • the microwave feed assembly includes a bottom plate 54, a probe 64 and a first retaining ring 52.
  • the bottom plate 54 is mounted on a rectangular waveguide 27 that is coupled between the bottom plate 54 and the semiconductor power source 42.
  • the probe 64 passes through the bottom plate 54 and the first fixing ring 52 in sequence, and the first end of the probe 64 (the right end in FIG. 6) is connected to the semiconductor power source 42 and the second end (the left end in FIG. 6) and the rectangular waveguide. 27 connected.
  • the probe 64 converts the microwave output of the TE11 mode semiconductor power board 30 into a TE10 mode suitable for microwave heating and feeds into the cavity 26.
  • the first end of the probe 64 and the semiconductor power source 42 may be directly connected to or connected by a coaxial transmission line 46.
  • the semiconductor power board 30 When connected through the coaxial transmission line 46, the semiconductor power board 30 is mounted.
  • the space of the bottom plate 54 and the first fixing ring 52 through which the probe 64 passes may also be filled with Teflon and closed by a cover 59.
  • microwave feeding structure according to the second embodiment of the present invention may be the same as those of the first embodiment, and the description thereof will not be repeated here.
  • the structure is simpler, the cost is further reduced, and the microwave generated by the semiconductor power source can be efficiently fed into the cavity.
  • the microwave feeding component of the microwave feeding structure includes an antenna 51, and the first end (the right end in FIG. 7) of the antenna 51 is connected to the semiconductor power source 42 and the antenna 51 The second end (the upper end in Figure 7) projects into the cavity 26.
  • the microwave of the mode TE11 of the semiconductor power board 30 can be conveniently converted into the microwave of the mode TE10 suitable for microwave heating by the antenna 51, and fed into the cavity 26.
  • a ceramic plate 85 is disposed in the cavity 26, and the cavity 26 divides the interior of the cavity 26 into a first cavity C1 and a second cavity.
  • the second of the antenna 51 extends into the second cavity C2, and the first cavity C1 is used for placing food, thereby preventing the cooking of the food from contaminating the antenna 51.
  • the antenna 51 can be coupled to the semiconductor power board 30 via a coaxial transmission line 46.
  • microwave feed structure according to the third embodiment of the present invention may be the same as those of the first and second embodiments, and will not be described in detail herein.
  • the microwave feeding structure according to the third embodiment of the present invention has a simpler structure and a lower cost.
  • a semiconductor chopper according to an embodiment of the present invention is described below.
  • a semiconductor furnace in accordance with an embodiment of the present invention includes a cavity 26, a semiconductor power source 42, a microwave feed assembly, and a power source.
  • the cavity 26 has a furnace door 25 for opening or closing the opening of the cavity 26.
  • the semiconductor power source 42 is configured to generate microwaves.
  • the microwave feed component is coupled between the semiconductor power source 42 and the cavity 26 to convert the microwave mode of the TE11 output from the semiconductor power source 42 into a mode suitable for microwave heating.
  • the microwave of TE10 is fed into cavity 26 to heat the food within cavity 26.
  • a power source such as a DC power source 20, is coupled to the semiconductor power source 42 for powering the semiconductor power source 42.
  • the microwave feed assembly of the semiconductor microwave oven according to an embodiment of the present invention may be the microwave feed assembly described with reference to any of the above embodiments, and other structures and operations of the semiconductor microwave oven are known to those skilled in the art, No longer described in detail.
  • the semiconductor power source 42 can be fed into the cavity 26 through the microwave feeding component, the structure is simple, the cost is low, and the semiconductor microwave oven has high efficiency, simple structure, low cost, and weight. Light, large power density per unit volume.
  • the description of the terms “one embodiment”, “some embodiments”, “example”, “specific example”, or “some examples” and the like means a specific feature described in connection with the embodiment or example.
  • a structure, material or feature is included in at least one embodiment or example of the invention.
  • the schematic representation of the above terms does not necessarily mean the same embodiment or example.
  • the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

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

Abstract

一种半导体微波炉及其微波馈入结构。该半导体微波炉的微波馈入机构包括:具有炉门(25)的腔体(26);用于产生微波的半导体功率源(42);和微波馈入组件,微波馈入组件连接在半导体功率源(42)和腔体(26)之间,以将半导体功率源(42)产生的微波馈入到腔体(26)内且将半导体功率源(42)输出的微波模式转换成适于微波加热的微波模式。该微波馈入结构简单合理、操作灵活、适用范围广,并且该半导体微波炉的效率高、结构简单、成本低、重量轻、单位体积功率密度大。

Description

半导体微波炉及其微波馈入结构 技术领域
本发明的实施例涉及一种半导体微波炉和该半导体微波炉的微波馈入结构。 背景技术
传统磁控管微波炉包括磁控管、 变压器、 高压电容、 高压二极管、 炉腔、 炉门和控制 部件。 如图 1所示, 磁控管 11' 发出的微波经矩形波导 12' 馈入微波炉的炉腔 13', 加热 炉腔 1 3' 内的食物。
近年来, 半导体微波技术得到了广泛的应用, 应用于通信的半导体微波技术的频段与 应用于微波加热的频段有区别, 半导体功率源的输出的微波的模式是 TE11 , 阻抗 50 Ω , 而 适于微波炉加热的微波的模式是 TE10模式, 为了在微波炉上应用半导体微波技术, 因此需 要提出一种将半导体功率源的微波输出馈入到微波炉腔体内的微波馈入结构。 发明内容
本发明 在至少在一定程度上解决上述技术问题之一或至少提供一种有用的商业选 择。
本发明的一个目的在于提出一种结构简单、 操作灵活、 适用范围广的半导体微波炉的 微波馈入结构。
本发明的另一目的在于提出一种具有上述微波馈入结构的半导体微波炉。
根据本发明第一方面的实施例的半导体微波炉的微波馈入结构, 包括: 腔体, 所述腔 体具有炉门; 用于产生微波的半导体功率源; 和微波馈入组件, 所述微波馈入组件连接在 所述半导体功率源和所述腔体之间, 以将所述半导体功率源产生的微波馈入到所述腔体内 且将半导体功率源输出的微波模式转换成适于微波加热的微波模式。
根据本发明实施例的半导体微波炉的微波馈入结构, 可以将半导体功率源产生的微波 馈入微波炉的腔体内,将半导体功率源输出的模式为 TE11的微波转换成适于微波加热的模 式为 TE10的微波, 且结构简单合理、 操作灵活、 适用范围广。
在本发明的一些实施例中, 所述半导体功率源包括: 半导体功率板, 所述半导体功率 板与所述微波馈入组件相连; 屏蔽罩, 所述屏蔽罩设在所述半导体功率板上方; 和散热器, 所述散热器贴置于所述半导体功率板的底面上。
根据本发明实施例的半导体微波炉的微波馈入结构还包括矩形波导, 所述矩形波导与 所述腔体相连且所述 t波馈入组件连接在所述半导体功率源与所述矩形波导之间。
在本发明的一些实施例中, 所述微波馈入组件包括: 安装管; 陶瓷环, 所述陶瓷环与 所述安装管相连; 管壳, 所述管壳与所述陶瓷环相连; 和天线, 所述天线的第一端与所述 半导体功率源相连而第二端依次穿过所述管壳、 陶瓷环和安装管伸入到所述矩形波导内。
在本发明的一些实施例中, 所述安装管邻近所述矩形波导的一端套设有天线帽, 所述 微波馈入组件还包括: 底板, 所述底板安装在所述矩形波导上, 所述陶瓷管安装在所述底 板的一侧且所述管壳安装在所述底壁的另一側; 第一固定环, 所述第一固定环安装在所述 半导体功率源上; 和第二固定环, 所述第二固定环套在所述管壳上且与所述底板和所述第 一固定环相连。 在本发明的一些实施例中, 所述微波馈入组件包括: 底板, 所述底板安装在所述矩形 波导上; 第一固定环, 所述第一固定环连接在所述底板与所述半导体功率源之间; 和探针, 所述探针穿过所述底板和所述第一固定环, 所述探针的第一端与所述半导体功率源相连而 第二端伸入到所述矩形波导内。
在本发明的一些实施例中, 所述探针的第一端与所述半导体功率源的 t带线直接相连 或通过同轴传输线相连。
在本发明的一些实施例中, 所述敫波馈入组件包括天线, 所述天线的第一端通过同轴 传输线与所述半导体功率源相连且所述天线的第二端伸入所述腔体内。
在本发明的一些实施例中, 所述腔体内设有陶瓷板, 所述陶瓷板将所述腔体内部分成 第一腔和第二腔, 所述天线的第二端伸入所述第二腔内。
根据本发明第二方面的实施例的半导体^波炉包括: 腔体, 所述腔体具有炉门; 半导 体功率源, 所述半导体功率源用于产生微波; 微波馈入组件, 所述微波馈入组件连接在所 述腔体与所述半导体功率源之间以将所述半导体功率源产生的微波馈入到所述腔体内且将 半导体功率源输出的微波模式转换成适于微波加热的微波模式; 和电源, 所述电源与所述 半导体功率源相连。
根据本发明实施例的半导体微波炉, 通过半导体功率源产生微波, 且通过微波馈入组 件将半导体功率源 42输出的模式为 TE11的微波转换成适于微波加热的模式为 TE10的微 波, 该半导体微波炉的效率高、 结构简单、 成本低、 重量轻、 单位体积功率密度大。
在本发明的一些实施例中, 所述半导体功率源包括: 半导体功率板, 所述半导体功率 板与所述微波馈入组件相连; 屏蔽罩, 所述屏蔽罩设在所述半导体功率板上方; 和散热器, 所述散热器贴置于所述半导体功率板的底面上。
根据本发明实施例的半导体^波炉还包括矩形波导, 所述矩形波导与所述腔体相连且 所述微波馈入组件连接在所述半导体功率源与所述矩形波导之间。
在本发明的一些实施例中, 所述鼓波馈入组件包括: 安装管; 陶瓷环, 所述陶瓷环与 所述安装管相连; 管壳, 所述管壳与所述陶瓷环相连; 和天线, 所述天线的第一端与所述 半导体功率源相连而第二端依次穿过所述管壳、 陶瓷环和安装管伸入到所述矩形波导内。
在本发明的一些实施例中, 所述安装管邻近所述矩形波导的一端套设有天线帽, 所述 微波馈入组件还包括: 底板, 所述底板安装在所述矩形波导上, 所述陶瓷管安装在所述底 板的一侧且所述管壳安装在所述底壁的另一侧; 第一固定环, 所述第一固定环安装在所述 半导体功率源上; 和第二固定环, 所述第二固定环套在所述管壳上且与所述底板和所述第 一固定环相连。
在本发明的一些实施例中, 所述微波馈入组件包括: 底板, 所述底板安装在所述矩形 波导上; 第一固定环, 所述第一固定环连接在所述底板与所述半导体功率源之间; 和探针, 所述探针穿过所述底板和所述第一固定环, 所述探针的第一端与所述半导体功率源相连而 第二端伸入到所述矩形波导内。
在本发明的一些实施例中, 所述探针的第一端与所述半导体功率源的 t带线直接相连 或通过同轴传输线相连。
在本发明的一些实施例中, 所述^波馈入组件包括天线, 所述天线的第一端通过同轴 传输线与所述半导体功率源相连且所述天线的第二端伸入所述腔体内。
在本发明的一些实施例中, 所述腔体内设有陶瓷板, 所述陶瓷板将所述腔体内部分成 第一腔和第二腔, 所述天线的第一端与所述半导体功率源相连且所述天线的第二端伸入所 述第二腔内。 附图说明
图 1是具有磁控管的传统微波炉的示意图;
图 2为根据本发明第一实施例的半导体微波炉的拆分示意图;
图 3为根据本发明第一实施例的半导体微波炉的侧视示意图;
图 4为根据本发明第一实施例的半导体微波炉的微波馈入组件的局部示意图, 其中该 微波馈入组件为与传统微波炉的磁控管输出组件类似;
图 5为根据本发明第二实施例的半导体微波炉的侧视示意图;
图 6为根据本发明第二实施例的半导体微波炉的微波馈入组件的局部示意图; 图 7为根据本发明第三实施例的半导体微波炉的示意图;
其中: 20为直流电源; 24为散热风扇; 25为炉门; 26为腔体; 27为矩形波导; 30为 半导体功率板; 31为屏蔽罩; 33为散热器; 42为半导体功率源; 45为磁控管输出组件; 46为同轴传输线; 51为天线; 52为第一固定环; 53为第二固定环; 54为底板; 55为天线 帽; 56为安装管; 57为陶瓷环; 58为管壳; 59为挡盖; 64为探针; 85为陶瓷板。 具体实施方式
在本发明的描述中,需要理解的是,术语"中心"、 "纵向"、 "横向"、 "长度"、 "宽度"、 "厚度"、 "上"、 "下"、 "前"、 "后"、 "左"、 "右"、 "竖直"、 "水平"、 "顶"、 "底" "内"、 "外"、 "顺时针"、 "逆时针"等指示的方位或位置关系为基于附图所示的方位或位置关系, 仅是为了便于描述本发明和简化描述, 而不是指示或暗示所指的装置或元件必须具有特定 的方位、 以特定的方位构造和操作, 因此不能理解为对本发明的限制。
此外, 术语 "第一"、 "第二" 仅用于描述 U的, 而不能理解为指示或暗示相对重要性 或者隐含指明所指示的技术特征的数量。 由此, 限定有 "第一"、 "第二" 的特征可以明示 或者隐含地包括一个或者更多个该特征。在本发明的描述中, "多个"的含义是两个或两个 以上, 除非另有明确具体的限定。
在本发明中, 除非另有明确的规定和限定, 术语 "安装"、 "相连"、 "连接 "、 "固定'' 等术语应做广义理解, 例如, 可以是固定连接, 也可以是可拆卸连接, 或一体地连接; 可 以是机械连接, 也可以是电连接; 可以是直接相连, 也可以通过中间媒介间接相连, 可以 是两个元件内部的连通。 对于本领域的普通技术人员而言, 可以才艮据具体情况理解上述术 语在本发明中的具体含义。
在本发明中, 除非另有明确的规定和限定, 第一特征在第二特征之 "上" 或之 "下" 可以包括第一和第二特征直接接触, 也可以包括第一和第二特征不是直接接触而是通过它 们之间的另外的特征接触。 而且, 第一特征在第二特征 "之上"、 "上方" 和 "上面" 包括 第一特征在第二特征正上方和斜上方, 或仅仅表示第一特征水平高度高于第二特征。 第一 特征在第二特征 "之下"、 "下方" 和 "下面" 包括第一特征在第二特征正下方和斜下方, 或仅仅表示第一特征水平高度小于第二特征。
下面结合附图描述根据本发明实施例的半导体微波炉的微波馈入结构。
如图 2-7所示, 根据本发明实施例的半导体微波炉的微波馈入结构包括腔体 26, 半导 体功率源 42和 t波馈入组件。 腔体 26具有用于打开或关闭腔体 26的开口的炉门 25。 半 导体功率源 42用于产生^:波, 所述 t波馈入组件与半导体功率源 42和腔体 26相连, 以将 半导体功率源 42产生的微波馈入到腔体 26内且将半导体功率源 42输出的微波模式转换成 适于微波加热的微波模式,从而加热腔体 26内的食物。 直流电源 20与半导体功率源 42相 连, 用于给半导体功率源 42供电。
根据本发明实施例的半导体微波炉的微波馈入结构,可以将半导体功率源 42产生的微 波馈入到腔体 26内,即通过微波馈入组件将半导体功率源 42输出的模式为 TE11的微波转 换成适于微波加热的模式为 TE10的微波, 而且, 由于通过半导体功率源 42产生微波, 微 波炉加热的效率高、 结构简单、 成本低、 重量轻、 单位体积功率密度大, 结构简单合理、 操作灵活、 适用范围广。
在本发明的一些具体实施例中, 半导体功率源 42包括半导体功率板 30; 屏蔽罩 31和 散热器 33 , 屏蔽罩 31设在半导体功率板 30上方, 用于屏蔽半导体功率板 30, 半导体功率 板 30与微波馈入组件相连,散热器 33贴置于半导体功率板 30的底面上, 用于对半导体功 率板 30产生的热量进行散热。 散热风扇 24设在腔体 26上, 用于散热。
如上所述, 半导体功率源 42通过微波馈入组件将半导体功率板 30产生的微波馈入到 腔体 26内,并且将半导体功率源 42输出的模式为 TE11的微波转换成适于微波加热的模式 为 TE10的 ¾波, 从而实现了半导体微波加热。
本领域的技术人员可以理解的是,半导体功率板 30内设有 UM0S管、偏压及控制电路、 功率合成器、功率检测及控制电路。半导体功率源 42和外界交流电源之间设置有开关电源、 蓄电池或者充电器,进行电压转化。偏压及控制电路包括半导体功率源输出功率检测电路、 半导体功率源反射功率检测电路、 半导体功率源关断信号电路、 半导体功率源的直流 +输 入电路以及半导体功率源的直流 -输入电路。 半导体功率源所需电压为直流 0-32V, 通过 调节输入电压的高低, 能够调节激励源的微波输出功率大小, 实现半导体微波炉功率的无 级调节。 这对于本领域的技术人员都是可以理解的, 这里不再详细描述。
半导体功率板 30的工作原理为:一定功率大小和数量的 L腿 OS管通过自振荡电路产生 频率 2450MHz ± 50MHz的微波。通过调节 L丽 OS管自振荡电路的可变电容值,也可改变频率, 根据实际情况(如食物的厚度、 加热状态)下的腔体驻波比大小, 在 2400MHz-2500MHz范 围内选择驻波最小的频率进行加热。
下面参考附图描述根据本发明的半导体微波炉的微波馈入结构的具体实施例。
第一实施例
参考图 2-图 4, 根据本发明第一实施例的半导体微波炉的微波馈入结构包括带有炉门 25的腔体 26、 半导体功率源 42、 矩形波导 27和 t波馈入组件 45。 矩形波导 27安装在炉 体 26上, 半导体功率源 42的半导体功率板 30与微波馈入组件 45相连, 可以直接相连, 也可以通过同轴传输线 46相连,在通过同轴传输线 46相连的情况下, 半导体功率板 30上 安装 N型连接器, 用于将微带输出转换成同轴输出, 同轴传输线 46通过 N型连接器与半导 体功率板 30相连。
散热器 33与半导体功率板 30的底面紧贴, 屏蔽罩 31位于半导体功率板 30与半导体 微波炉的外壳之间,微波馈入组件 45与矩形波导 27相连, 以便半导体功率源 42产生的微 波通过^:波馈入组件 45和矩形波导 27馈入到腔体 26内。
在本实施例中, 微波馈入组件 45与具有磁控管的传统微波炉的磁控管输出组件类似, 从而可以方便地具有磁控管的传统微波炉进行修改,用于半导体功率源 42替换传统微波炉 的磁控管, 并且对磁控管输出组件进行适当的变化, 就可以得到半导体微波炉, 无需对传 统微波炉进行其他变化, 降低了成本。
如图 4所示, 在本实施例中, 微波馈入组件 45包括安装管 56、 陶瓷环 57、 管壳 58和 天线 51。 陶瓷环 57的一端与安装管 56相连, 管壳 58与陶瓷环 57的另一端相连, 天线 51 的第一端(图 4中的右端)与半导体功率源 42相连而第二端(图 4中的左端)依次穿过管 壳 58、 陶瓷环 57和安装管 56伸入到矩形波导 27内。 天线 51将 TE11模式的半导体功率 板 30的微波输出转换成适于微波加热的 TE10模式, 并且馈入到腔体 26内。
在本发明的一个优选示例中, 如图 4所示, 安装管 56邻近矩形波导 27的一端(图 4 中的左端)套设有天线帽 55 , 微波馈入组件 45还包括底板 54 , 第一固定环 52和第二固定 环 53。 底板 54安装在矩形波导 27上, 陶瓷环 57安装在底板 54的一侧(图 4中的左侧) 且管壳 58安装在底板 54的另一侧 (图 4中的右侧 第一固定环 52安装在半导体功率源 42上, 第二固定环 53套在管壳 58上且与底板 54和第一固定环 52相连。
具体地, 第一固定环 52与第二固定环 53可以通过螺钉固定在一起, 螺钉穿过第二固 定环 53上的通孔, 拧入第一固定环 52上的螺纹孔, 从而实现第一固定环(52 )与第二固 定环(53 )连接。 底板 54通过螺钉固定在第二固定环 53上。 第一固定环 52和第二固定环 53将微波馈入组件 45与半导体功率源 42相连。
如图 4所示, 在天线 51穿过的空间内, 可以填充填充物, 例如聚四氟乙烯, 在第一固 定环 52的右侧设有挡盖 59 , 用于止挡第一固定环 52和所述填充物。
根据本发明第一实施例的微波馈入结构,天线 51将半导体功率板 30输出的模式为 TE11 的微波转换成适于微波加热的模式为 TE10的微波, 并通过矩形波导 27馈入到腔体 26内, 结构简单, 降低了成本, 从而可以对具有磁控管的传统微波炉进行修改得到半导体微波炉, 微波炉的其他结构无需变化, 进一步降低了成本。
第二实施例
参考图 5-图 6 ,在本发明的第二实施例中,微波馈入组件包括底板 54 ,探针 64和第一 固定环 52。 底板 54安装在矩形波导 27上, 第一固定环 52连接在底板 54与半导体功率源 42之间。 探针 64依次穿过底板 54和第一固定环 52, 且探针 64的第一端(图 6中的右端) 与半导体功率源 42相连而第二端 (图 6中的左端)与矩形波导 27相连。 探针 64将 TE11 模式的半导体功率板 30的微波输出转换成适于微波加热的 TE10模式, 并且馈入到腔体 26 内。
可选地, 在探针 64的第一端与半导体功率源 42的^:带线可以直接相连或通过同轴传 输线 46相连, 在通过同轴传输线 46相连的情况下, 半导体功率板 30上安装 N型连接器, 用于将微带输出转换成同轴输出,同轴传输线 46通过 N型连接器与半导体功率板 30相连。
如图 6所述,探针 64穿过的底板 54和第一固定环 52的空间内也可以填充聚四氟乙烯, 并且用挡盖 59封闭。
根据本发明第二实施例的微波馈入结构的其他结构和操作可以与第一实施例相同, 这 里不再重复描述。
根据本发明第二实施例的微波馈入结构, 结构更加简单, 进一步降低了成本, 并且可 以有效地将半导体功率源产生的微波馈入到腔体内。
第三实施例 参考图 7, 在本发明的第三实施例中, 微波馈入结构的微波馈入组件包括天线 51 , 天 线 51的第一端(图 7中的右端 )与半导体功率源 42相连且天线 51的第二端(图 7中的上 端)伸入腔体 26内。 由此, 通过天线 51可以方便地将半导体功率板 30的模式为 TE11的 微波转换成适于微波加热的模式为 TE10的微波, 并且馈入到腔体 26内。
优选地, 在腔体 26内设有陶瓷板 85 , 腔体 26将腔体 26内部分成第一腔 C1和第二腔
C2 , 天线 51的第二伸入所述第二腔 C2内, 第一腔 C1用于放置食物, 从而避免食物的烹饪 污染天线 51。
可选地, 天线 51可以通过同轴传输线 46与半导体功率板 30相连。
根据本发明第三实施例的微波馈入结构的其他结构和操作可以与第一和第二实施例相 同, 这里不再详细描述。
根据本发明第三实施例的微波馈入结构的结构更加简单, 成本更低。
下面描述根据本发明实施例的半导体敫波炉。 根据本发明实施例的半导体^:波炉包括 腔体 26 , 半导体功率源 42、微波馈入组件和电源。 腔体 26具有用于打开或关闭腔体 26的 开口的炉门 25。 半导体功率源 42用于产生微波, 所述微波馈入组件连接在半导体功率源 42与腔体 26之间, 以将半导体功率源 42输出的模式为 TE11的微波转换成适于微波加热 的模式为 TE10的微波, 并馈入到腔体 26内, 从而加热腔体 26内的食物。 电源, 例如直流 电源 20与半导体功率源 42相连, 用于给半导体功率源 42供电。
根据本发明实施例的半导体微波炉的微波馈入组件可以为参考上述任一实施例描述的 微波馈入组件,并且该半导体微波炉的其他结构和操作对于本领域的技术人员都是已知的, 这里不再详细描述。
根据本发明实施例的半导体微波炉, 通过微波馈入组件, 可以将半导体功率源 42馈入 到腔体 26内, 结构简单, 成本低, 而且该半导体微波炉的效率高、 结构简单、 成本低、 重 量轻、 单位体积功率密度大。
在本说明书的描述中, 参考术语 "一个实施例"、 "一些实施例"、 "示例"、 "具体示 例"、 或 "一些示例" 等的描述意指结合该实施例或示例描述的具体特征、 结构、 材料或者 特点包含于本发明的至少一个实施例或示例中。 在本说明书中, 对上述术语的示意性表述 不一定指的是相同的实施例或示例。 而且, 描述的具体特征、 结构、 材料或者特点可以在 任何的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本发明的实施例, 可以理解的是, 上述实施例是示例性的, 不能理解为对本发明的限制, 本领域的普通技术人员在不脱离本发明的原理和宗 的情况 下在本发明的范围内可以对上述实施例进行变化、 修改、 替换和变型。

Claims

权利要求书
1、一种半导体微波炉的微波馈入结构, 其特征在于, 包括:
腔体( 26 ), 所述腔体具有炉门 ( 25 );
用于产生微波的半导体功率源 ( 42 ); 和
微波馈入组件, 所述微波馈入组件连接在所述半导体功率源 (42 )和所述腔体(26 ) 之间, 以将所述半导体功率源 (42)产生的微波馈入到所述腔体(26 ) 内且将所述半导体 功率源 (42 )输出的微波模式转换成适于微波加热的微波模式。
2、根据权利要求 1所述的半导体微波炉的微波馈入结构, 其特征在于, 所述半导体功 率源 (42) 包括:
半导体功率板(30), 所述半导体功率板(30)与所述^:波馈入组件相连;
屏蔽罩( 31 ), 所述屏蔽罩( 31 )设在所述半导体功率板( 30 )上方; 和
散热器(33), 所述散热器(33)贴置于所述半导体功率板(30)的底面上。
3、根据权利要求 1或 2所述的半导体微波炉的微波馈入结构, 其特征在于, 还包括矩 形波导( 27 ), 所述矩形波导( 27 )与所述腔体( 26 )相连, 所述^:波馈入组件连接在所述 半导体功率源 (42)与所述矩形波导(27)之间。
4、根据权利要求 3所述的半导体微波炉的微波馈入结构, 其特征在于, 所述微波馈入 组件包括:
安装管( 56 );
陶瓷环( 57 ), 所述陶瓷环( )与所述安装管( 56 )相连;
管壳 所述管壳 (58)与所述陶瓷环(57)相连; 和
天线(51 ), 所述天线(51 )的第一端与所述半导体功率源(42)相连而第二端依次穿 过所述管壳 (58)、 陶瓷环(57)和安装管(56)伸入所述矩形波导管(27) 内。
5、根据权利要求 4所述的半导体微波炉的微波馈入结构,其特征在于,所述安装管( 6 ) 邻近所述矩形波导(27) 的一端套设有天线帽(55), 所述 ^:波馈入组件还包括:
底板(54), 所述底板安装在所述矩形波导(27)上, 所述陶瓷管安装在所述底板的一 侧且所述管壳安装在所述底壁的另一侧;
第一固定环(52), 所述第一固定环(52)安装在所述半导体功率源 (42)上; 和 第二固定环(53), 所述第二固定环(53)套在所述管壳(58)上且与所述底板(54) 和所述第一固定环(52)相连。
6、根据权利要求 3所述的半导体微波炉的微波馈入结构, 其特征在于, 所述微波馈入 组件包括:
底板( 54 ), 所述底板( 54 )安装在所述矩形波导( 27 )上;
第一固定环(52), 所述第一固定环(52)连接在所述底板(54)与所述半导体功率源 ( 42 )之间; 和
探针 ( 64), 所述探针 (64) 穿过所述底板(54)和所述第一固定环(52), 所述探针 (64) 的第一端与所述半导体功率源 (42)相连而第二端伸入到所述矩形波导(27) 内。
7、根据权利要求 6所述的半导体 !¾:波炉的 ¾:波馈入结构, 其特征在于,所述探针( 64 ) 的第一端与所述半导体功率源 (42 )的^:带线直接相连或通过同轴传输线(46)相连。
8、根据权利要求 1或 2所述的半导体微波炉的微波馈入结构, 其特征在于, 所述微波 馈入组件包括天线( 51 ), 所述天线的第一端与通过同轴传输线( 46 )与所述半导体功率源
(42)相连且所述天线(51 ) 的第二端伸入所述腔体(26) 内。
9、根据权利要求 8所述的半导体 £波炉的 £波馈入结枸, 其特征在于,所述腔体( 26 ) 内设有陶瓷板(85), 所述陶瓷板将所述腔体内部分成第一腔和第二腔, 所述天线(51 )的 第二端伸入所述第二腔内。
10、 一种半导体微波炉, 其特征在于, 包括:
腔体( 26 ), 所述腔体具有炉门 (25 );
半导体功率源 (42), 所述半导体功率源用于产生^:波;
微波馈入组件, 所述微波馈入组件连接在所述腔体(26) 与所述半导体功率源 (42) 之间以将所述半导体功率源产生的微波馈入到所述腔体内且将半导体功率源 ( 42 )输出的 微波模式转换成适于微波加热的微波模式; 和
电源 ( 20 ), 所述电源 ( 20 )与所述半导体功率源 ( 42 )相连。
11、 根据权利要求 11所述的半导体微波炉, 其特征在于, 所述半导体功率源(42) 包 括:
半导体功率板(30), 所述半导体功率板(30)与所述^:波馈入组件相连;
屏蔽罩( 31 ), 所述屏蔽罩( 31 )设在所述半导体功率板( 30 )上方; 和
散热器(33), 所述散热器(33)贴置于所述半导体功率板(30)的底面上。
12、根据权利要求 10或 11所述的半导体微波炉, 其特征在于,还包括矩形波导( 27 ), 所述矩形波导(27)与所述腔体(26)相连且所述微波馈入组件连接在所述半导体功率源
(42)与所述矩形波导( )之间。
13、 根据权利要求 12所述的半导体微波炉, 其特征在于, 所述微波馈入组件包括: 安装管( 56 );
陶瓷环(57), 所述陶瓷环(57)与所述安装管(56)相连;
管壳 (58), 所述管壳 (58)与所述陶瓷环(57)相连; 和
天线(51 ), 所述天线(51 )的第一端与所述半导体功率源(42)相连而第二端依次穿 过所述管壳 ( 58 )、 陶瓷环( )和安装管( 56 )伸入所述矩形波导管( 27 ) 内。
14、 根据权利要求 13所述的半导体微波炉, 其特征在于, 所述安装管(56)邻近所述 矩形波导的一端套设有天线帽 (55 ), 所述微波馈入组件还包括:
底板(54), 所述底板安装在所述矩形波导上, 所述陶瓷管安装在所述底板的一侧且所 述管壳安装在所述底壁的另一侧;
第一固定环(52), 所述第一固定环安装在所述半导体功率源 (42)上; 和
第二固定环(53), 所述第二固定环套在所述管壳(58)上且与所述底板和所述第一固 定环相连。
15、 根据权利要求 12所述的半导体微波炉, 其特征在于, 所述微波馈入组件包括: 底板( 54 ), 所述底板( 54 )安装在所述矩形波导( 27 )上;
第一固定环(52), 所述第一固定环(52)连接在所述底板(54)与所述半导体功率源 (42)之间; 和
探针 ( 64), 所述探针 (64) 穿过所述底板(54)和所述第一固定环(52), 所述探针 (64) 的第一端与所述半导体功率源 (42)相连而第二端伸入到所述矩形波导 7) 内。
16、 根据权利要求 16所述的半导体微波炉, 其特征在于, 所述探针(64)的第一端与 所述半导体功率源 (42) 的微带线直接相连或通过同轴传输线(46)相连。
17、 根据权利要求 10或 11所述的半导体微波炉, 其特征在于, 所述微波馈入组件包 括天线(51 ), 所述天线(51 ) 的第一端通过同轴传输线(46)与所述半导体功率源 (42) 相连且所述天线( 51 )的第二端伸入所述腔体( 26 ) 内。
18、 根据权利要求 17所述的半导体微波炉, 其特征在于, 所述腔体(26) 内设有陶瓷 板(85), 所述陶瓷板将所述腔体(26) 内部分成第一腔和第二腔, 所述天线(51 )的第一 端与所述半导体功率源 ( 42 )相连且所述天线( 51 ) 的第二端伸入所述第二腔内。
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KR20140100944A (ko) 2014-08-18
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US10015846B2 (en) 2018-07-03
CN102374557B (zh) 2016-08-03
EP2778539A4 (en) 2015-07-15
CN102374557A (zh) 2012-03-14
EP2778539A1 (en) 2014-09-17

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