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US 2026/0229977 A1Published application
Linear motor armature and manufacturing method for same
AssigneeFanuc Corporation
InventorsAkira NISHIFUKUMOTO, Yuusuke KONDOU
Life of this patent
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Abstract
The present disclosure pertains to a linear motor armature comprising: a core having a plurality of teeth and a plurality of slots; a resin mold; and a sheet-like reinforcement member. The reinforcement member has formed therein a recess part recessed toward the side opposite to the teeth. The recess part is continuous in the lateral surface orthogonal to the thickness direction of the reinforcement member. The recess part is filled with a resin material.
Claims8
A linear motor armature comprising:
- a core including a plurality of teeth and a plurality of slots, a coil being provided in each of the plurality of slots;
- a resin mold made of a resin material and covering the core;
- and
- a reinforcing member having a sheet shape and being provided on a wall portion of the resin mold, the wall portion facing the plurality of teeth, in order to reinforce the wall portion,
- wherein the reinforcing member includes a recessed portion that is recessed away from the plurality of the teeth,
- the recessed portion is connected to a side surface of the reinforcing member that faces perpendicularly to a thickness direction of the reinforcing member, and
- the recessed portion is filled with the resin material.
4 more elements
A method of manufacturing a linear motor armature, the linear motor armature including:
- a core including a plurality of teeth and a plurality of slots, a coil being provided in each of the plurality of slots;
- a resin mold made of a resin material and covering the core;
- and
- a reinforcing member having a sheet shape and being provided on a wall portion of the resin mold, the wall portion facing the plurality of teeth, in order to reinforce the wall portion,
- the method comprising:
- a preparation step of preparing a sheet member including a recessed portion formed in a surface of the sheet member;
- an arrangement step of arranging the sheet member on a bottom surface of a mold in a manner so that the recessed portion faces upward;
- a placement step of placing the core on the sheet member in a manner so that the plurality of teeth are brought into contact with the sheet member;
- and
- a molding step of molding the resin mold by injecting a liquid resin into the mold and solidifying the liquid resin,
- wherein in the molding step, the sheet member becomes the reinforcing member, and the recessed portion is filled with the liquid resin.
8 more elements
Dependencies are inferred from the claim text.