WO2015161605A1 - 微波炉 - Google Patents

微波炉 Download PDF

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Publication number
WO2015161605A1
WO2015161605A1 PCT/CN2014/085593 CN2014085593W WO2015161605A1 WO 2015161605 A1 WO2015161605 A1 WO 2015161605A1 CN 2014085593 W CN2014085593 W CN 2014085593W WO 2015161605 A1 WO2015161605 A1 WO 2015161605A1
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WO
WIPO (PCT)
Prior art keywords
microwave
port
cooking cavity
isolator
feeding device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/085593
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English (en)
French (fr)
Inventor
张斐娜
唐相伟
杜贤涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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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Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to US15/304,444 priority Critical patent/US20170045232A1/en
Priority to EP14890007.9A priority patent/EP3136001B1/en
Publication of WO2015161605A1 publication Critical patent/WO2015161605A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • 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
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control
    • 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
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control
    • H05B6/686—Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators
    • 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
    • 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
    • H05B6/705—Feed lines using microwave tuning
    • 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
    • H05B6/72—Radiators or antennas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to the field of household appliances, and more particularly to a microwave oven and a microwave oven including the input and output connection of the semiconductor microwave generator.
  • Microwave ovens are commonly used appliances for heating or cooking.
  • the principle is to use microwaves to cause high-frequency oscillations of water molecules in food to heat or cook food from frictional heat.
  • semiconductor microwave technology a semiconductor microwave oven using a semiconductor microwave generator instead of a magnetron to generate microwaves has appeared.
  • the microwave source of a semiconductor microwave oven mainly adopts a source amplification principle or an LDMOS (lateral diffusion metal oxide semiconductor) oscillation principle.
  • the amplified microwave is taken out from the microwave output port and connected to a feeding device such as an antenna or a probe, and directly fed into the cooking cavity.
  • directly feeding the amplified microwave into the cavity directly reverses the microwave back.
  • the microwave source affects the normal operation of the microwave source. If the microwave transmitted back to the microwave source is too large, the microwave source may even be burned out.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the present invention provides a microwave oven comprising: a cooking cavity; a microwave source; a controller, the controller being coupled to the microwave source for controlling power of the microwave source; and first An isolator, the first isolator is provided with a first input port, a first output port and a first isolation port, the first input port is connected to the microwave source, the first output port is The cooking chambers are connected, and the first isolation port is connected to a load.
  • the microwave oven provided by the invention provides a first isolator between the microwave source and the cooking cavity, and optimizes the matching between the microwave source and the cooking cavity, and the first isolation port of the first isolator is connected with the load, and is placed
  • the reversely transmitted microwave is consumed by the load connected to the first isolator, thereby avoiding the problem that the microwave is excessively burned due to the reverse transmission of the microwave source, and the microwave source is ensured.
  • the service life which in turn improves the quality of the product.
  • microwave oven provided in accordance with the present invention has the following additional technical features:
  • the load is a resistor, one end of the resistor being electrically connected to the first isolation port and the other end being grounded.
  • the small size and low cost of the resistor not occupy the space inside the microwave oven, and the production cost of the microwave oven is not increased, and the resistor can effectively consume the microwave transmitted by the cooking cavity in the reverse direction, thereby avoiding the microwave transmitted by the reverse direction.
  • the problem of large burnt microwave sources ensures the service life of the microwave source.
  • the cooking chamber is provided with a first feeding device, and the first output port is in communication with the cooking cavity through the first feeding device.
  • the arrangement of the microwave feeding device makes the connection between the isolator and the cooking cavity simple and convenient, and at the same time effectively ensures the reliability of the microwave signal transmission.
  • the method further includes: a second isolator, wherein the second isolator is provided with a second input port, a second output port, and a second isolation port, and the cooking cavity is further provided with a second a second input port connected to the first isolation port, the second output port being in communication with the cooking cavity through the second feeding device, the One end is connected to the second isolation port.
  • the amplified microwave is fed into the cooking cavity through the first isolator, and at this time, the microwave that is reversely transmitted by the cooking cavity is fed again to the cooking cavity through the second isolator, thereby effectively improving the microwave utilization rate, and again The microwave that is reversely transmitted by the cooking cavity is consumed by the resistor connected to the isolation port of the second isolator, thereby effectively avoiding the problem that the microwave is excessively burnt due to the reverse transmission, thereby ensuring the service life of the microwave source. .
  • the microwave oven further includes a detector, the detector is connected to the first isolation port, and is configured to detect a microwave signal strength output by the first isolation port, and feedback the detection result. To the controller.
  • the detector detects the intensity of the microwave signal outputted by the first isolated port, and sends the detection result to the controller.
  • the controller adjusts the voltage or frequency of the microwave source according to the received detection result, thereby optimizing the microwave source and Matching between cooking chambers.
  • the detector comprises a coupler, the coupler being connected to the first isolation port.
  • the coupler has the advantages of strong anti-interference ability and high sensitivity, which effectively ensures the accuracy of the detection result of the detector.
  • the first feedthrough device and the second feedthrough device are both welded or snapped or screwed onto the cooking cavity.
  • the welding or the snapping or screwing has good connection strength, thereby effectively ensuring the connection strength between the first feeding device and the second feeding device and the cooking cavity.
  • the first feeding device and the second feeding device are both probes.
  • the first feedthrough device and the second feedthrough device are both antennas.
  • Both the wire and the probe have the advantage of high efficiency, which can effectively improve the microwave transmission efficiency.
  • FIG. 1 is a first partial structural view of a microwave oven according to an embodiment of the invention.
  • FIG. 2 is a schematic view showing a second partial structure of a microwave oven according to an embodiment of the invention.
  • FIG 3 is a third partial structural view of a microwave oven according to an embodiment of the invention.
  • a microwave oven includes a cooking cavity 10 , a microwave source 20 , a controller 30 , and a first isolator 40 .
  • the controller 30 is connected to the microwave source 20 for controlling the microwave source.
  • the first isolator 40 is provided with a first input port 41, a first output port 42 and a first isolation port 43, the first input port 41 is connected to the microwave source 20, the first output port 42 and the cooking chamber
  • the body 10 is connected, and the first isolation port 43 is connected to a load.
  • a first isolator 40 is disposed between the microwave source 20 and the cooking cavity 10 to optimize the matching between the microwave source and the cooking cavity 10.
  • the first isolation port 43 of the first isolator 40 is provided.
  • the load is a resistor 60.
  • One end of the resistor 60 is electrically connected to the first isolation port 41, and the other end is grounded.
  • the cooking cavity 10 is provided with a first feeding device 11 through which the first output port 42 passes. 11 is in communication with the cooking cavity 10.
  • the resistor 60 is small in size and low in cost, and does not occupy the space inside the microwave oven, and does not increase the production cost of the microwave oven, and the resistor 60 can effectively consume the microwaves that are reversely transmitted by the cooking cavity 10, thereby avoiding reverse transmission.
  • the problem of excessive microwave burnout of the microwave source 20 ensures the service life of the microwave source 20; the arrangement of the microwave feeding device makes the connection between the isolator and the cooking cavity 10 simple and convenient, and at the same time effectively ensures the microwave signal transmission. Reliability.
  • the resistance of the resistor 60 is 50 ⁇ .
  • the first feedthrough 11 is welded or snapped or screwed onto the cooking cavity 10.
  • Soldering or snapping or screwing have good joint strength, which effectively guarantees the feeding The strength of the connection between the cooking chamber 10 and the cooking chamber 10.
  • the first feeding device 11 is a probe or an antenna, and the wire or the probe has the advantages of high efficiency, and the microwave transmission efficiency can be effectively improved.
  • the microwave oven further includes: a second isolator 50, and the second isolator 50 is provided with a second input port 51, a second output port 52, and a second isolation.
  • Port 53 the cooking chamber 10 is further provided with a second feeding device 12; the second input port 51 is connected to the first isolation port 43, and the second output port 52 is connected to the cooking chamber 10 via the second feeding device 12.
  • One end of the resistor 60 is connected to the second isolation port 53.
  • the amplified microwaves are fed into the cooking cavity 10 through the first isolator 40.
  • the microwaves reversely transmitted by the cooking cavity 10 are again fed into the cooking cavity 10 through the second isolator 50, thereby effectively improving the microwave.
  • the microwave, which is again reversely transported by the cooking cavity 10 is consumed by the resistor 60 connected to the isolated port of the second isolator 50, thereby effectively avoiding the excessively large microwaves from the reversely transmitting microwave source 20
  • the problem is to ensure the service life of the microwave source 20.
  • the second feedthrough 12 is welded or snapped or screwed onto the cooking cavity 10.
  • the welding or the snapping or the screwing have good joint strength, thereby effectively ensuring the connection strength between the second feeding device 12 and the cooking cavity 10.
  • the microwave oven further includes a detector, and the detector is connected to the first isolation port 43 for detecting the first isolation port.
  • the intensity of the microwave signal output is 43 and the detection result is fed back to the controller 30.
  • the intensity of the microwave signal outputted by the first isolation port 43 is detected by the detector, and the detection result is sent to the controller 30, and the controller 30 adjusts the voltage or frequency of the microwave source 20 according to the received detection result, thereby optimizing The matching between the microwave source 20 and the cooking cavity 10 is achieved.
  • the detector includes a coupler that is coupled to the first isolation port 43.
  • the microwave oven provided by the invention provides an isolator between the microwave source and the cooking cavity, and the amplified microwave is fed into the cooking cavity through the isolator, thereby optimizing the matching between the microwave source and the cooking cavity.
  • the isolated port of the isolator is connected with a load.
  • the amplified microwave is reversely transmitted by the cooking cavity, the reversely transmitted microwave is consumed by the load, effectively transmitting the microwave source and the microwave in the reverse direction, thereby avoiding the reverse transmission.
  • the problem of excessive microwave burnout of the microwave source ensures the service life of the microwave source, thereby improving the product quality.
  • first and second are used for the purpose of description only, and are not to be construed as indicating or implying a relative importance unless otherwise specifically defined and defined.
  • connection may be a fixed connection, a detachable connection, or an integral connection; "It can be directly connected or indirectly connected through an intermediate medium.”
  • connection may be a fixed connection, a detachable connection, or an integral connection; "It can be directly connected or indirectly connected through an intermediate medium.”
  • the description of the terms “one embodiment”, “some embodiments”, “specific embodiments” and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. At least one embodiment or example.
  • the schematic representation of the above terms does not necessarily refer to 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)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)
  • Cookers (AREA)

Abstract

一种微波炉，包括烹饪腔体（10）、微波源（20）、控制器（30）和第一隔离器（40）。控制器（30）与微波源（20）相连接，用于控制微波源（20）的功率；第一隔离器（40）设置有第一输入端口（41）、第一输出端口（42）和第一隔离端口（43）。第一输入端口（41）与微波源（20）相连接，第一输出端口（42）与烹饪腔体（20）相连接，第一隔离端口（43）连接有负载。在微波源（20）和烹饪腔体（10）之间设置隔离器，隔离器的隔离端口连接有负载，当放大的微波由烹饪腔体（10）逆向传输时，逆向传输的微波会被负载消耗，从而避免了因逆向传输的微波过大而烧坏微波源（20）的问题，保证了微波源（20）的使用寿命。

Description

微波炉 技术领域
本发明涉及家用电器领域，更具体而言，涉及一种用于微波炉及含有该半导体微波发生器输入输出连接结的微波炉。
背景技术
微波炉是用来加热或烹饪的常用器具，其原理是利用微波使食物的水分子产生高频振荡，从摩擦生热来加热或烹饪食物。随着半导体微波技术发展，出现了采用半导体微波发生器代替磁控管产生微波的半导体微波炉，目前半导体微波炉的微波源，主要采用源放大原理或LDMOS(横向扩散金属氧化物半导体)振荡原理，将被放大的微波从微波输出口引出，与天线或探针等馈入装置相连，直接馈入烹饪腔体内，但是，这样直接将被放大的微波馈入腔体的方式会将微波直接逆向传输回微波源，影响微波源的正常工作，如果传输回微波源的微波过大，甚至会烧坏微波源。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。
为此，本发明的目的在于，提供一种能够隔离反射功率，有效保证微波源使用寿命的微波炉。
为实现上述目的，本发明提供了一种微波炉，包括：烹饪腔体；微波源；控制器，所述控制器与所述微波源相连接，用于控制所述微波源的功率；和第一隔离器，所述第一隔离器上设置有第一输入端口、第一输出端口和第一隔离端口，所述第一输入端口与所述微波源相连接，所述第一输出端口与所述烹饪腔体相连接，所述第一隔离端口连接有负载。
本发明提供的微波炉，在微波源与烹饪腔体之间设置第一隔离器，优化了微波源与烹饪腔体之间的匹配，第一隔离器的第一隔离端口与负载连接，当放 大的微波被烹饪腔体反射逆向传输时，逆向传输的微波会被与第一隔离器相连接的负载消耗，从而避免了因逆向传输的微波过大烧坏微波源的问题，保证了微波源的使用寿命，进而提升了产品品质。
另外，根据本发明提供的微波炉还具有如下附加技术特征：
根据本发明的一个实施例，所述负载为电阻，所述电阻的一端与所述第一隔离端口电连接，另一端接地。
电阻的体积小、成本低，既不会占用微波炉内部的空间，又不会提高微波炉的生产成本，且电阻能够有效地消耗由烹饪腔体逆向传输的微波，从而避免了因逆向传输的微波过大烧坏微波源的问题，保证了微波源的使用寿命。
根据本发明的一个实施例，所述烹饪腔体上设置有第一馈入装置，所述第一输出端口通过所述第一馈入装置与所述烹饪腔体相连通。
微波馈入装置的设置使得隔离器与烹饪腔体之间的连接简单方便，同时有效地保证了微波信号传输的可靠性。
根据本发明的一个实施例，还包括：第二隔离器，所述第二隔离器上设置有第二输入端口、第二输出端口和第二隔离端口，所述烹饪腔体上还设置有第二馈入装置；所述第二输入端口与所述第一隔离端口相连接，所述第二输出端口通过所述第二馈入装置与所述烹饪腔体相连通，所述电阻的所述一端与所述第二隔离端口相连接。
放大后的微波通过第一隔离器后馈入烹饪腔体，此时，由烹饪腔体逆向传输的微波经第二隔离器再次馈入至烹饪腔体，有效地提高了微波利用率，而再次由烹饪腔体逆向传输的微波，被与第二隔离器的隔离端口相连接的电阻消耗，从而有效地避免了因逆向传输的微波过大烧坏微波源的问题，保证了微波源的使用寿命。
根据本发明的一个实施例，所述微波炉还包括检测器，所述检测器与所述第一隔离端口相连接，用于检测所述第一隔离端口输出的微波信号强度，并将检测结果反馈至所述控制器。
通过检测器检测第一隔离端口输出的微波信号强度，并将检测结果出送给控制器，控制器根据接收到的检测结果对微波源的电压或频率等参数进行调节，从而优化了微波源与烹饪腔体之间的匹配性。
根据本发明的一个实施例，所述检测器包括耦合器，所述耦合器与所述第一隔离端口相连接。
耦合器具有抗干扰能力强，灵敏度高等优点，有效地保证了检测器的检测结果的准确性。
根据本发明的一个实施例，所述第一馈入装置和所述第二馈入装置均焊接或者卡接或者螺接在所述烹饪腔体上。
焊接或者卡接或者螺接均具有良好的连接强度，从而有效的保证了第一馈入装置和第二馈入装置与烹饪腔体之间的连接强度。
根据本发明的一个实施例，所述第一馈入装置和所述第二馈入装置均为探针。
根据本发明的一个实施例，所述第一馈入装置和所述第二馈入装置均为天线。
线或者探针均具有效率高的优点，可有效提高微波传输效率。
本发明的附加方面和优点将在下面的描述部分中给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本发明一实施例所述的微波炉的第一种局部结构示意图；
图2是根据本发明一实施例所述的微波炉的第二种局部结构示意图；
图3是根据本发明一实施例所述的微波炉的第三种局部结构示意图。
其中，图1至图3中附图标记与部件名称之间的对应关系为：
10烹饪腔体，11第一馈入装置，12第二馈入装置，20微波源，30控制器，40第一隔离器，41第一输入端口，42第一输出端口，43第一隔离端口，50第二隔离器，51第二输入端口，52第二输出端口，53第二隔离端口，60电阻，70检测器。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
下面参照附图1至3描述根据本发明一些实施例提供的微波炉。
如图1所示，本发明一些实施例提供的微波炉包括：烹饪腔体10、微波源20、控制器30和第一隔离器40，控制器30与微波源20相连接，用于控制微波源20的功率；第一隔离器40上设置有第一输入端口41、第一输出端口42和第一隔离端口43，第一输入端口41与微波源20相连接，第一输出端口42与烹饪腔体10相连接，第一隔离端口43连接有负载。
本实施例提供的微波炉，在微波源20与烹饪腔体10之间设置第一隔离器40，优化了微波源与烹饪腔体10之间的匹配，第一隔离器40的第一隔离端口43与负载连接，当放大的微波被烹饪腔体10发射逆向传输时，逆向传输的微波会被与第一隔离器40相连接的负载消耗，从而避免了因逆向传输的微波过大烧坏微波源20的问题，保证了微波源20的使用寿命，进而提升了产品品质。
具体地，负载为电阻60，电阻60的一端与第一隔离端口41电连接，另一端接地；烹饪腔体10上设置有第一馈入装置11，第一输出端口42通过第一馈入装置11与烹饪腔体10相连通。
电阻60的体积小、成本低，既不会占用微波炉内部的空间，又不会提高微波炉的生产成本，且电阻60能够有效地消耗由烹饪腔体10逆向传输的微波，从而避免了因逆向传输的微波过大烧坏微波源20的问题，保证了微波源20的使用寿命；微波馈入装置的设置使得隔离器与烹饪腔体10之间的连接简单方便，同时有效地保证了微波信号传输的可靠性。
在本实施例中，优选地，电阻60的阻值为50Ω。
优选地，第一馈入装置11焊接或者卡接或者螺接在烹饪腔体10上。
焊接或者卡接或者螺接均具有良好的连接强度，从而有效的保证了馈入装 置与烹饪腔体10之间的连接强度。
可选地，第一馈入装置11为探针或者天线，线或者探针均具有效率高的优点，可有效提高微波传输效率。
在本实施例的一个具体实施例中，如图2所示，微波炉还包括：第二隔离器50，第二隔离器50上设置有第二输入端口51、第二输出端口52和第二隔离端口53，烹饪腔体10上还设置有第二馈入装置12；第二输入端口51与第一隔离端口43相连接，第二输出端口52通过第二馈入装置12与烹饪腔体10相连通，电阻60的一端与第二隔离端口53相连接。
放大后的微波通过第一隔离器40后馈入烹饪腔体10，此时，由烹饪腔体10逆向传输的微波经第二隔离器50再次馈入至烹饪腔体10，有效地提高了微波利用率，而再次由烹饪腔体10逆向传输的微波，被与第二隔离器50的隔离端口相连接的电阻60消耗，从而有效地避免了因逆向传输的微波过大烧坏微波源20的问题，保证了微波源20的使用寿命。
优选地，第二馈入装置12焊接或者卡接或者螺接在烹饪腔体10上。
焊接或者卡接或者螺接均具有良好的连接强度，从而有效的保证了第二馈入装置12与烹饪腔体10之间的连接强度。
在本实施例的另一个具体实施例中，如图3所示，在上述实施例的基础上，微波炉还包括检测器，检测器与第一隔离端口43相连接，用于检测第一隔离端口43输出的微波信号强度，并将检测结果反馈至控制器30。
通过检测器检测第一隔离端口43输出的微波信号强度，并将检测结果出送给控制器30，控制器30根据接收到的检测结果对微波源20的电压或频率等参数进行调节，从而优化了微波源20与烹饪腔体10之间的匹配性。
具体地，检测器包括耦合器，耦合器与第一隔离端口43相连接。
综上所述，本发明提供的微波炉，在微波源与烹饪腔体之间设置隔离器，放大后的微波通过隔离器后馈入烹饪腔体，优化了微波源与烹饪腔体之间的匹配，而隔离器的隔离端口连接有负载，当放大的微波由烹饪腔体逆向传输时，逆向传输的微波会被负载消耗，有效地将微波源与逆向传输的微波，从而避免了因逆向传输的微波过大烧坏微波源的问题，保证了微波源的使用寿命，进而提升了产品品质。
在本发明的描述中，术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性，除非另有明确的规定和限定。
在本发明的描述中，术语“安装”、“连接”、“相连”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”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实例。而且，描述的具体特征、结构、材料或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。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (9)

  1. 一种微波炉，其特征在于，包括：
    烹饪腔体；
    微波源；
    控制器，所述控制器与所述微波源相连接，用于控制所述微波源的功率；和
    第一隔离器，所述第一隔离器上设置有第一输入端口、第一输出端口和第一隔离端口，所述第一输入端口与所述微波源相连接，所述第一输出端口与所述烹饪腔体相连接，所述第一隔离端口连接有负载。
  2. 根据权利要求1所述的微波炉，其特征在于，
    所述负载为电阻，所述电阻的一端与所述第一隔离端口电连接，另一端接地。
  3. 根据权利要求2所述的微波炉，其特征在于，
    所述烹饪腔体上设置有第一馈入装置，所述第一输出端口通过所述第一馈入装置与所述烹饪腔体相连通。
  4. 根据权利要求3所述的微波炉，其特征在于，还包括：
    第二隔离器，所述第二隔离器上设置有第二输入端口、第二输出端口和第二隔离端口，所述烹饪腔体上还设置有第二馈入装置；
    所述第二输入端口与所述第一隔离端口相连接，所述第二输出端口通过所述第二馈入装置与所述烹饪腔体相连通，所述电阻的所述一端与所述第二隔离端口相连接。
  5. 根据权利要求4所述的微波炉，其特征在于，还包括：
    检测器，所述检测器与所述第一隔离端口相连接，用于检测所述第一隔离端口输出的微波信号强度，并将检测结果反馈至所述控制器。
  6. 根据权利要求5所述的微波炉，其特征在于，还包括：
    所述检测器包括耦合器，所述耦合器与所述第一隔离端口相连接。
  7. 根据权利要求4至6中任一项所述的微波炉，其特征在于，
    所述第一馈入装置和所述第二馈入装置均焊接或者卡接或者螺接在所述 烹饪腔体上。
  8. 根据权利要求7所述的微波炉，其特征在于，
    所述第一馈入装置和所述第二馈入装置均为探针。
  9. 根据权利要求7所述的微波炉，其特征在于，
    所述第一馈入装置和所述第二馈入装置均为天线。
PCT/CN2014/085593 2014-04-24 2014-08-29 微波炉 Ceased WO2015161605A1 (zh)

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