Mold, ejection structure thereof and manufacturing method of fan
AssigneeDelta Electronics Components (Wujiang) Ltd.
InventorsShenghua LUO, Huilin ZHAO
Life of this patent
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Abstract
A mold for manufacturing a fan including a fixed portion and a plurality of blades connected to the fixed portion. Each of the blades has a bottom surface. The mold includes a body and an ejection structure. The body has a cavity with a shape matched with a shape of the fan. The ejection structure includes a plurality of ejection pins radially arranged. Each of the ejection pins has a working surface. Wherein a sum area of the working surfaces of the ejection pins is greater than or equal to 40% of a sum area of the bottom surfaces of the blades.
Claims25
A mold for manufacturing a fan, wherein the fan comprises a fixed portion and a plurality of blades connected to the fixed portion, each of the blades has a bottom surface, the mold comprising:
- a body having a cavity with a shape matched with a shape of the fan, and
- an ejection structure comprising a plurality of ejection pins radially arranged, each of the ejection pins has a working surface, and a sum area of the working surfaces of the ejection pins is greater than or equal to 40% of a sum area of the bottom surfaces of the blades.
An ejection structure for manufacturing a fan, wherein the fan comprises a fixed portion and a plurality of blades connected to the fixed portion, each of the blades has a bottom surface, wherein the ejection structure comprising:
- a plurality of ejection pins radially arranged, each of the ejection pins has a working surface, and a sum area of the working surfaces of the ejection pins is greater than or equal to 40% of a sum area of the bottom surfaces of the blades.
A manufacturing method of fan, the fan comprises a fixed portion and a plurality of blades connected to the fixed portion, each of the blades has a bottom surface, wherein the method of manufacturing the fan comprises:
- providing a mold, wherein the mold comprises a body, and the body has a cavity with a shape matched with a shape of the fan;
- providing an ejection structure, wherein the ejection structure comprises a plurality of ejection pins radially arranged, each of the ejection pins has a working surface, and a sum area of the working surfaces of the ejection pins is greater than or equal to 40% of a sum area of the bottom surfaces of the blades;
- filling fluid material into the cavity of the mold;
- driving the ejection structure to move along the cavity to eject a solidified fluid material to form a fan.
Dependencies are inferred from the claim text.