公开(公告)号：US5567339A

公开(公告)日：1996-10-22

申请号：US64421

申请日：1993-05-21

申请人： Phil D. Joo ,  Kyung S. Lim ,  Kwan H. Lee

发明人： Phil D. Joo ,  Kyung S. Lim ,  Kwan H. Lee

IPC分类号： F24C7/02 ,  H05B6/70 ,  H05B6/72

CPC分类号： H05B6/707

摘要： A wave guide system of a microwave oven is provided, comprising a cavity containing a food to be cooked and having a pair of microwave feed openings formed in one wall thereof; a magnetron having an antenna and positioned between the microwave feed openings in spaced apart relation to the wall having the feed openings, to generate microwaves having a wavelength of .lambda..sub.g ; and a waveguide provided to cover the feed openings, support thereon the magnetron and guide the microwave through the feed openings into the cavity and having a short circuited surface which is spaced apart from the antenna by a distance of .lambda..sub.g /4 and parallel to the antenna. With this arrangement, the microwave generated in the magnetron produce standing waves in the waveguide, and then are emitted into the cavity through the microwave feed openings of the cavity, thereby uniformly heating a food in the cavity.

摘要翻译： 提供了一种微波炉的波导系统，包括：容纳待烹饪食物的空腔，并在其一个壁上形成一对微波进料口; 具有天线的磁控管并且定位在与具有进料口的壁间隔开的微波进料口之间，以产生波长为λg的微波; 以及设置成覆盖进料口的波导，在其上支撑磁控管，并将微波引导通过进料口进入空腔，并具有短路表面，该表面与天线间隔开λg / 4的距离并平行于 天线。 利用这种布置，在磁控管中产生的微波在波导管中产生驻波，然后通过空腔的微波馈入孔发射到空腔中，从而均匀地加热空腔中的食物。