FAN MOTOR SILICON STEEL SHEET STRUCTURE AND FAN MOTOR THEREOF
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United States of America Patent
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Issued Date -
Nov 21, 2013
app pub date -
May 15, 2012
filing date -
May 15, 2012
priority date (Note) -
Abandoned
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Abstract
A fan motor silicon steel sheet structure and a fan motor thereof. The silicon steel sheet structure includes a silicon steel sheet assembly having multiple silicon steel sheets, which overlap one another. The silicon steel sheets include at least one first silicon steel sheet and multiple second silicon steel sheets. The first silicon steel sheet has a first bore and at least one protrusion section. The protrusion section inward protrudes from an inner circumference of the first bore. The first silicon steel sheet is overlaid on one side of the second silicon steel sheets. Each of the second silicon steel sheets has a second bore in communication with the first bore. The fan motor silicon steel sheet structure is able to effectively secure the bearing and provide a dustproof effect. With such structure, the manufacturing cost of the fan motor is lowered.
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