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发明授权
CN101681684B 燃料组件的连接结构 有权

燃料组件的连接结构
摘要：
一种燃料组件的连接结构包括螺纹连接装置，以提供能够防止杂质混入燃料中的燃料组件的连接结构，其中，在闩套管(10)和锁定开关(20)之间的装配部上没有产生垂直的游隙。燃料组件的连接结构包括闩套管(10)，其具有形成在其上端部上的突出部(11)；上喷嘴(30)，在其中形成了闩套管安装孔(31)，所述闩套管(10)的上端部插入到闩套管安装孔(31)中；和锁定开关(20)，其安装到闩套管安装孔(31)的内部，和其具有形成在其底表面上的开口部(21)，开口部(21)的形状对应于突出部(11)。螺纹连接装置将锁定开关(20)螺纹地连接至上喷嘴口(30)，外螺纹(23)形成在锁定开关(20)的侧表面上。
摘要（英）：

The coupling structure of a fuel assembly, which eliminates a play in the vertical direction at the fitting portion of a latch sleeve (10) and a lock key (20) while preventing foreign matters from mixing with fuel, comprises the latch sleeve (10) having a projecting portion (11) formed at the upper end portion thereof, an upper nozzle (30) having a latch sleeve installation hole (31) into which the upper end portion of the latch sleeve (10) is inserted, and the lock key (20) installed in the latch sleeve installation hole (31) and provided, in the lower surface thereof, with an opening (21) having a shape matching the shape of the projecting portion (11), the latch sleeve (10) and the lock key (20) being coupled together by turning the lock key (20) after inserting the upper end portion of the latch sleeve (10) into the lock key (20), wherein a screw coupling means for screw coupling the lock key (20) to the upper nozzle (30) side by forming a male screw (23) on the side surface of the lock key (20)is provided.

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