公开(公告)号：US4304974A

公开(公告)日：1981-12-08

申请号：US122808

申请日：1980-02-19

申请人： Nobuo Ikeda ,  Hirofumi Yoshimura

发明人： Nobuo Ikeda ,  Hirofumi Yoshimura

IPC分类号： F24C7/02 ,  H05B6/72 ,  H05B6/80 ,  H05B11/00

CPC分类号： H05B6/725 ,  H05B6/6485 ,  H05B6/72

摘要： A heating appliance such as a stove which has a high frequency and resistance heater therein. A high frequency oscillator supplies frequency radiation energy through a waveguide extending to a energy feeding port in the heating chamber, and a rotary antenna extends through the energy feeding port for directing the high frequency energy into the heating chamber. A motor rotates the antenna, a heater of a type other than a high frequency heater, such as a resistance heater, is in the heating chamber substantially parallel with the wall of the heating chamber in which the energy feeding port is positioned. The rotary antenna has substantially an L shape with a longitudinal section extending from the waveguide into the heating chamber through the energy feeding port, the portions of the longitudinal section within the heating chamber from the wall in which the energy feeding port is positioned to the inner end thereof having a length substantially equal to one quarter the wavelength of the high frequency energy, and a lateral section connected to the longitudinal section at a point intermediate the length thereof within the heating chamber at a point between the wall of the heating chamber and the resistance heater.

摘要翻译： 一种加热器具，例如在其中具有高频和电阻加热器的炉子。 高频振荡器通过延伸到加热室中的能量馈送端口的波导器提供频率辐射能量，并且旋转天线延伸穿过能量馈送端口，用于将高频能量引导到加热室中。 电动机旋转天线，加热室内的加热室基本上平行于加热室的位于能量馈送口的壁上，而不是高频加热器之类的加热器，例如电阻加热器。 旋转天线具有大致L形，其纵向部分从波导通过能量馈送端口延伸到加热室中，加热室内的纵向部分的部分与能量馈送端口所在的壁的内部 其长度基本上等于高频能量的波长的四分之一，以及横向部分，其在加热室的壁之间的点处在加热室内的长度的中间的纵向截面处连接， 电阻加热器。

公开(公告)号：US4314126A

公开(公告)日：1982-02-02

申请号：US62241

申请日：1979-07-30

申请人： Hirofumi Yoshimura ,  Junzo Tanaka ,  Nobuo Ikeda

发明人： Hirofumi Yoshimura ,  Junzo Tanaka ,  Nobuo Ikeda

IPC分类号： H05B6/64 ,  H05B3/02 ,  H05B6/80 ,  H05B11/00

CPC分类号： H05B6/642 ,  H05B6/6482

摘要： A microwave heating apparatus has a body with a front wall, and a heating chamber within the body for holding an object to be heated. A microwave source is provided for generating microwaves, and a wave guide is connected between the microwave source and a microwave inlet for guiding the microwaves from the microwave source to the heating chamber. A radiant energy heater is disposed within the heating chamber for heating the object to be heated by radiant energy, and a power box is positioned above the chamber and housing the microwave source and the high voltage circuit components therefor. A microwave source cooling fan is provided in the power box, and thermal insulation covers the walls of the heating chamber, the upper surface of the thermal insulation on the top of the chamber and the bottom surface of the power box being spaced to provide a cooling conduit. The front wall of the body has an air suction inlet therein opening into one end of the cooling conduit, and a power box cooling fan is provided at the other end of the cooling conduit. The power box has a suction port therein opening into the cooling conduit upstream of the power box cooling fan for admitting air from the cooling conduit into the power box, the microwave source cooling fan and the power box cooling fan being in parallel flow relation.

摘要翻译： 微波加热装置具有前壁的主体和用于保持待加热物体的本体内的加热室。 提供用于产生微波的微波源，波导连接在微波源和微波入口之间，用于将微波从微波源引导到加热室。 辐射能加热器设置在加热室内，用于通过辐射能加热待加热的物体，并且电源箱位于室上方并容纳微波源和高压电路部件。 在电源箱内设有微波源冷却风扇，隔热层覆盖加热室的壁面，室顶部隔热层的上表面和电箱的底面间隔开，以提供冷却 导管。 主体的前壁具有一个空气吸入口，通入冷却管道的一端，而冷却导管的另一端则设有动力箱冷却风扇。 动力箱有一个吸入口，通入电源箱冷却风扇上游的冷却导管，用于将空气从冷却导管进入电源箱，微波源冷却风扇和电源箱冷却风扇处于并流状态。

公开(公告)号：US4449025A

公开(公告)日：1984-05-15

申请号：US307361

申请日：1981-09-30

申请人： Nobuo Ikeda ,  Hirofumi Yoshimura

发明人： Nobuo Ikeda ,  Hirofumi Yoshimura

IPC分类号： H05B6/76

CPC分类号： H05B6/763

摘要： A microwave leakage-preventive device for use with a high frequency heating appliance for dielectric heating of an object by high frequency energy has a choke attenuator installed in a door for attenuation of microwaves, the choke attenuator being of the type adapted to enter an oven cavity when the door is closed. A portion of the choke attenuator is received in a recess formed within the door body, so that the choke attenuator entering the oven cavity is made smaller by an amount corresponding to the dimension thereof received in the door body. The width of the recess formed within the door body is made larger than the width of the choke attenuator entering the oven cavity, thereby providing a small-thickness door which is superior in microwave leakage prevention.

摘要翻译： 一种与高频加热装置一起使用的微波泄漏防护装置，用于通过高频能量对物体进行电介质加热，其具有安装在门内用于衰减微波的扼流衰减器，该扼流衰减器适于进入炉腔 当门关闭时。 扼流衰减器的一部分被容纳在形成在门体内的凹部中，使得进入烤箱腔的扼流衰减器被减小到与其在门体中接收的尺寸相对应的量。 形成在门体内的凹部的宽度大于进入烘箱腔的扼流器衰减器的宽度，从而提供了防止微波泄漏优点的小厚度的门。

公开(公告)号：US4327267A

公开(公告)日：1982-04-27

申请号：US173496

申请日：1980-07-29

申请人： Nobuo Ikeda ,  Hirofumi Yoshimura

发明人： Nobuo Ikeda ,  Hirofumi Yoshimura

IPC分类号： G03G15/14 ,  G03G15/16 ,  H05B6/72 ,  H05B6/80

CPC分类号： H05B6/72

摘要： There is disclosed an energy feeding device for installation in a high frequency heating appliance which includes a heating chamber, a high frequency oscillator for supplying a high frequency energy to the heating chamber, a waveguide for transmitting the high frequency electromagnetic wave generated from the high frequency oscillator, and a rotary antenna for radiating the high frequency electromagnetic wave so transmitted by the waveguide into the heating chamber. The rotary antenna has a revolving drive shaft, made of a material with a low dielectric loss and is connected to a drive source, a metal pipe which is connected to the revolving drive shaft at its socket end. The socket end of the metal pipe is expanded and rounded off, thereby substantially preventing sparking under light load.

摘要翻译： 公开了一种用于安装在高频加热器具中的能量馈送装置，其包括加热室，用于向加热室供应高频能量的高频振荡器，用于传输从高频产生的高频电磁波的波导 振荡器和用于将通过波导传输的高频电磁波辐射到加热室中的旋转天线。 旋转天线具有由具有低介电损耗的材料制成的旋转驱动轴，并连接到驱动源，金属管在其插座端连接到旋转驱动轴。 金属管的插座端部被膨胀和倒圆，从而基本上防止在轻负载下的火花。

公开(公告)号：US4326112A

公开(公告)日：1982-04-20

申请号：US96169

申请日：1979-11-20

申请人： Junzo Tanaka ,  Nobuo Ikeda ,  Hirofumi Yoshimura

发明人： Junzo Tanaka ,  Nobuo Ikeda ,  Hirofumi Yoshimura

IPC分类号： H01Q9/42 ,  H05B6/72

CPC分类号： H01Q9/42 ,  H05B6/72

摘要： The present invention is a microwave oven having a rotary antenna with a substantially tubular L-shaped configuration from which microwaves are radiated into a heating cavity. This antenna is constituted by a first antenna portion, which extends from and is perpendicularly to a wall of the heating cavity in the microwave oven and has a length substantially equal to a quarter of the wavelength, and a second antenna portion which extends parallel to the wall and has a length substantially equal to half the wavelength so as to distribute the microwaves evenly inside the heating cavity.

摘要翻译： 本发明是一种具有旋转天线的微波炉，其具有大致管状的L形结构，微波从该微波炉辐射到加热腔中。 该天线由第一天线部分构成，第一天线部分从微波炉中延伸并垂直于加热腔的壁并且具有基本上等于波长的四分之一的长度;以及第二天线部分，其平行于 并且具有基本上等于波长的一半的长度，以便将微波均匀地分布在加热腔内。

公开(公告)号：US4508946A

公开(公告)日：1985-04-02

申请号：US473343

申请日：1983-03-08

申请人： Hirofumi Yoshimura ,  Nobuo Ikeda

发明人： Hirofumi Yoshimura ,  Nobuo Ikeda

IPC分类号： H04B3/28 ,  H04L25/08 ,  H05B6/72 ,  H05B6/64

CPC分类号： H04B3/28 ,  H04L25/08 ,  H05B6/72

摘要： A microwave oven with a rotary antenna for feeding electromagnetic waves to a heating chamber. The antenna has a first antenna portion and a second antenna portion which extend in mutually opposite directions and substantially at right angles to a rotary shaft portion, the length of the first antenna portion being greater than that of the second antenna by approximately one quarter of the wavelength of the electromagnetic waves used and the free end of the first antenna portion being bent substantially at right angles thereto for a length not exceeding one quarter of the wavelength to thereby ensure a uniform electric field distribution within the heating chamber. A dielectric seal plate supporting the rotating shaft of the rotary antenna has a tapered cross-sectional configuration projecting into a waveguide to prevent a sharp change of impedance in the waveguide, whereby spark discharge due to a high frequency electric field is effectively prevented even in the absence of a heating load in the heating chamber.

摘要翻译： 一个带旋转天线的微波炉，用于将电磁波馈送到加热室。 天线具有第一天线部分和第二天线部分，该第一天线部分和第二天线部分在与旋转轴部分相互相反的方向上基本成直角地延伸，第一天线部分的长度大于第二天线的长度大约四分之一 使用的电磁波的波长和第一天线部分的自由端基本上以直角弯曲长度不超过波长的四分之一，从而确保加热室内的均匀的电场分布。 支撑旋转天线的旋转轴的电介质密封板具有突出到波导中的锥形横截面结构，以防止波导中的阻抗急剧变化，由此即使在高频电场中也能有效地防止由于高频电场引起的火花放电 在加热室中不存在加热负载。

公开(公告)号：US4436973A

公开(公告)日：1984-03-13

申请号：US367601

申请日：1982-04-12

申请人： Nobuo Ikeda ,  Hirofumi Yoshimura

发明人： Nobuo Ikeda ,  Hirofumi Yoshimura

IPC分类号： H05B6/72 ,  H05B6/74 ,  H05B6/80

CPC分类号： H05B6/725 ,  H05B6/642 ,  H05B6/6485 ,  H05B6/74

摘要： A high frequency heating appliance which includes a magnetron, which is used as a high frequency oscillator, and which is directly mounted in a heating chamber and which further includes a stirrer fan for ensuring a uniform electric field distribution of high frequency electromagnetic radiation in the chamber; the fan is mounted coaxially with an antenna for the magnetron; the stirrer fan is provided with a vertical metallic segment for high frequency impedance matching and the vertical metallic segment has a horizontal metallic subsegment located on its end which is oriented so as to be substantially at right angles with the vertical metallic segment for providing a sufficient capacitive coupling between the wall of the heating chamber and the horizontal metallic subsegment with an adequate gap being secured from the heating chamber wall supporting the magnetron. The above-noted construction ensures an improved efficiency and improved distribution of the high frequency output of the magnetron.

摘要翻译： 一种高频加热装置，其包括用作高频振荡器的磁控管，并且其直接安装在加热室中，并且还包括用于确保腔室中的高频电磁辐射的均匀电场分布的搅拌器风扇 ; 风扇与磁控管的天线同轴安装; 搅拌器风扇设置有用于高频阻抗匹配的垂直金属段，并且垂直金属段具有位于其端部上的水平金属子段，其被定向成与垂直金属段基本上成直角，以提供足够的电容 加热室的壁与水平金属子段之间的耦合，其中足够的间隙从支撑磁控管的加热室壁固定。 上述结构确保磁控管的高频输出的效率提高和分布改善。

公开(公告)号：US4371769A

公开(公告)日：1983-02-01

申请号：US62243

申请日：1979-07-30

申请人： Hirofumi Yoshimura ,  Junzo Tanaka ,  Nobuo Ikeda

发明人： Hirofumi Yoshimura ,  Junzo Tanaka ,  Nobuo Ikeda

IPC分类号： H01P1/02 ,  H05B6/70 ,  H05B11/00

CPC分类号： H05B6/707 ,  H05B6/6482 ,  H05B6/725

摘要： A microwave heating apparatus has a heating chamber in which an object is to be heated both dielectrically by microwave and by radiant energy. A microwave generator for generating microwaves is disposed above the heating chamber, and a radiant energy heater is located within the heating chamber. A rectangular wave guide extends between the generator and an opening in the chamber for guiding the microwaves generated by the generator into the heating chamber from above, the wave guide being bent generally in the shape of the letter Z and the portion of the wave guide other than the portion adjacent the opening into said heating chamber being spaced from the walls of the heating chamber. Thermal insulation is provided between the chamber and the portion of the wave guide spaced from the walls of the chamber.

摘要翻译： 微波加热装置具有加热室，在该加热室中，物体将通过微波和辐射能在介质上进行加热。 用于产生微波的微波发生器设置在加热室的上方，辐射能加热器位于加热室内。 矩形波导在发电机和腔室中的开口之间延伸，用于将发电机产生的微波从上方引入加热室，波导通常以Z字形的形式弯曲，波导部分的其他部分弯曲 比与加热室的开口相邻的部分与加热室的壁间隔开。 在腔室和波导管的与腔室壁间隔开的部分之间提供隔热。

公开(公告)号：US4347420A

公开(公告)日：1982-08-31

申请号：US158229

申请日：1980-06-10

申请人： Nobuo Ikeda ,  Junzo Tanaka ,  Hirofumi Yoshimura

发明人： Nobuo Ikeda ,  Junzo Tanaka ,  Hirofumi Yoshimura

IPC分类号： H05B6/76

CPC分类号： H05B6/763

摘要： An improved choke seal arrangement, in a microwave oven, in which a slit structure is provided to prevent leakage of microwave energy around the periphery of the door. The slit structure, which has been provided in one of the walls defining the choke cavity in the prior art choke seal arrangement, is provided in a door wall portion spaced apart from the choke cavity so as to facilitate mechanical formation of the choke cavity and also to prevent deformation of the choke cavity wall during use. The choke seal arrangement permits the gap between the wall of the choke cavity and the confronting inner wall of the heating chamber to be smaller than hitherto, and the microwave seal performance further improved.

摘要翻译： 在微波炉中提供了​​一种改进的扼流圈密封装置，其中提供狭缝结构以防止微波能量围绕门的周边泄漏。 在现有技术的扼流圈密封装置中设置在限定扼流腔的一个壁中的狭缝结构设置在与扼流腔间隔开的门壁部分中，以便于扼流腔的机械形成，并且还 以防止在使用期间扼流腔壁的变形。 扼流圈密封装置允许扼流腔的壁与加热室的相对的内壁之间的间隙比迄今小，并且微波密封性能进一步提高。

公开(公告)号：US4324967A

公开(公告)日：1982-04-13

申请号：US184322

申请日：1980-09-05

申请人： Nobuo Ikeda ,  Hirofumi Yoshimura

发明人： Nobuo Ikeda ,  Hirofumi Yoshimura

IPC分类号： H01J23/40 ,  H01J25/50 ,  H05B6/72

CPC分类号： H05B6/72

摘要： A microwave heating apparatus with a heating chamber, a high frequency oscillator, and a wave guide between the oscillator and the chamber has a rotatable antenna coupling the wave guide with the heating chamber for distributing high frequency radiation in the chamber. The rotatable antenna has an inner end extending into the wave guide and which is rotatably mounted therein, a first magnet is provided in the inner end of the rotatable antenna, and an antenna drive motor located outside the wave guide has a second magnet in spaced opposed relation to the first magnet and forming a magnetic coupling therewith.

摘要翻译： 具有加热室，高频振荡器和振荡器和腔室之间的波导的微波加热装置具有将波导与加热室耦合的可旋转天线，用于在室中分配高频辐射。 可旋转天线的内端延伸到波导内并可旋转地安装在其中，第一磁体设置在可旋转天线的内端，位于波导外侧的天线驱动马达具有间隔开的相对的第二磁体 与第一磁体的关系并与其形成磁耦合。