Category: Books by the same author
Category: Journal articles needing infobox zoo
Category: Philosophy of education
Category: Quotes by.
Category: Satirical and parodic works
Category: Satirical works
Category: Book-length works
Category: Volumes
Category: Indonesian literature1. Field of the Invention
This invention relates to a method of assembling a stator of a transformer, particularly to a method of assembling a stator core for a high-voltage transformer.
2. Description of the Prior Art
In a conventional method of assembling a stator of a high-voltage transformer, as shown in FIG. 1, a stator core is produced from a cylindrical steel member 1 through pressing and machining of its circumference, and is then inserted into a mold (not shown) in such a manner that it is fitted to a side core 2 having a conductor wound thereon and is fixed by an adhesive or other means. A coil b of a stator wire is wound around the outer periphery of the stator core 1 at such a position that a starting point of the coil b is at the stator core 1. Thereafter, the side core 2 is pressed by a caulking machine to be fixed to the stator core 1, and then the stator core is inserted into a coil former (not shown) which is provided with a through hole 3 for winding a coil b through caulking. Thereafter, the stator core is fixed in the coil former by an adhesive, or caulking. A stator thus produced is disclosed in U.S. Pat. No. 4,158,900, for example.
In the conventional method, however, the stator core is fixed to the coil former with a magnetic force generated by the stator core, so that the coil former is deformed to be undesirably compressed. If an amount of such a deformation is great, the stator cannot be fixed to the coil former.
In another conventional method, a stator core is produced through the steps of pressing a cylindrical core blank having a punched hole and a plurality of blank inserting holes, into a sleeve made of a synthetic resin, and rolling the outer periphery of the core blank at the punched hole in the sleeve, to deform the core blank in a direction of inserting the blank inserting hole into the sleeve. A stator thus produced is disclosed in U.S. Pat. No. 4,138,98 be359ba680
Related links:
Comments