Structure and manufacturing method of a linear stepping motor
AssigneeHiwin Mikrosystem Corp.
InventorShuen-Shing Hsiao
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Abstract
The present invention relates to a new-type secondary structure of a linear stepping motor and its manufacturing method. The new-type secondary structure of a linear stepping motor is mainly composed of several permeance sheets and insulating sheets which are arranged in stagger one by one. The manufacturing method is to shape the permeance sheets and insulating sheets in advance, and then combine and glue these sheets. Several advantages of the present invention are easy to be manufactured, having less weight, producing low eddy current, incurring lower cost and having better quality control.
Claims10
A secondary structure of a linear stepping motor, which comprises a plurality of permeance sheets and a plurality of insulating sheets;
- said permeance sheets and said insulating sheets having a thin plate shape, said permeance sheets being made of a first material having good permeance and said insulating sheets being made of a second material having poor permeance, wherein said permeance sheets and said insulating sheets are arranged in stagger and combined together, and wherein said second material having poor permeance is glass fiber.
A manufacturing method of a secondary structure of a linear stepping motor, comprising steps of:
- a. using a first plate of a permeance material to make permeance sheets with a first contour designed in advance, and using a second plate of glass fiber to make insulating sheets with a second contour designed in advance;
- b. arranging said permeance sheets and said insulating sheets in stagger one by one, and
- c. combining said permeance sheets and said insulating sheets;
- whereby said secondary structure of said linear stepping motor is manufactured.
Dependencies are inferred from the claim text.