Protective sleeve for motor component and method for manufacturing same
AssigneeGosen Co., Ltd.
InventorAtsushi Kinugasa
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Abstract
The protective sleeve for a motor component of the present invention is obtained by braiding multifilament yarns made of synthetic fibers into a cylindrical braided cord of at least 24 strands. The multifilament yarns have a single-yarn fineness of at least 15 dtex but less than 30 dtex and the yarn total fineness of a single braid unit of the braided cord is in the range of 800 to 1500 dtex. This protective sleeve has good covering properties and few voids. Therefore, a protective sleeve for a motor component is provided that has high partial discharge characteristics (electrical insulation performance) and good electrical insulation properties even when a step of washing away the raw yarn oil solution applied to the filaments was omitted.
Claims12
A protective sleeve for a motor component, obtained by braiding multifilament yarns made of synthetic fibers into a cylindrical braided cord of at least 24 strands,
- wherein the multifilament yarns have a single-yarn fineness of at least 15 dtex but less than 30 dtex, and
- the yarn total fineness of a single braid unit of the braided cord is in a range of 800 to 1500 dtex, and
- the multifilament yarns to be supplied for the braided cord have been interlaced, and the protective sleeve has a partial discharge inception voltage of at least 1700 V after the multifilament yarns are braided into the braided cord.
Dependencies are inferred from the claim text.