Heat-dissipating device and its manufacturing process
AssigneeDelta Electronics, Inc.
InventorsChen-Chang Lin, Wen-Shi Huang, Kuo-Cheng Lin, Sheng-Hua Luo
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Abstract
A heat-dissipating device and its manufacturing process are provided for significantly increasing the number and size of blades so as to enhance the heat-dissipating performance. The heat-dissipating device has a plurality of blades arranged around the hub of the heat-dissipating device and there is an overlapped region formed between every two adjacent blades. A single mold is used to manufacture such a heat-dissipating device so that not only can the manufacturing cost be reduced but it can significantly increase the number and size of blades so as to increase the heat-dissipating efficiency.
Claims17
A process for manufacturing a heat-dissipating device having a body and a plurality of blades with varied thickness and arranged around the body, wherein the body and the blades are integrally formed as a single unit, and there is an overlapped region formed between every two adjacent blades, the process comprising the steps of:
- providing a mold including a first mold portion and a second mold portion, wherein the first mold portion is engaged with the second mold portion along a separating line between the first mold portion and the second mold portion, the separating line passing through a largest cross section in thickness of each blade of the heat-dissipating device;
- applying a desired material into a space defined in the mold for forming the heat-dissipating device therein so as to execute a forming step of the heat-dissipating device;
- and
- stripping the first mold portion and the second mold portion along an inclined direction of blades, thereby fabricating the heat-dissipating device.
A process for manufacturing an impeller having a body and a plurality of blades with varied thickness and arranged around the body, wherein the body and the blades are integrally formed as a single unit, and there is an overlapped region formed between every two adjacent blades, the process comprising the steps of:
- providing a mold including a first mold portion and a second mold portion, wherein the first mold portion is engaged with the second mold portion by spacing with a plurality of sliding blocks between the first mold portion and the second mold portion to form a space, the sliding blocks are radially arranged with respect to a center of the impeller;
- applying a desired material into the space defined in the mold for forming the impeller therein so as to execute a forming step of the impeller;
- and
- stripping the sliding blocks along a plurality of predetermined directions corresponding to the blades, thereby fabricating the impeller.
Dependencies are inferred from the claim text.