Title:
液冷用アルミヒートシンク及びその製造方法
Document Type and Number:
Japanese Patent JP7371322
Kind Code:
B2
Abstract:
To provide an aluminum heat sink for cooling liquid, which is integrated without post-processing of a pin and a case, and is formed by improving a degree of freedom in a case formation and a pin formation (density, thickness, arrangement, and directional property), and provide a manufacturing method of the same.SOLUTION: A heat sink 1 is formed by integrally casting a plurality of pins 3 and a case 2. The case 2 has an open 6 as a gateway of liquid, and the plurality of pins 3 is integrally casted to the case 2. The liquid-cooled type heat sink 1 is manufactured by a method including, in the following order: a step of preparing a water soluble core comprising a plurality of penetration hole parts in which the pins 3 are formed while casting a molten metal, and an open type part in which the open 6 is formed in the case 2 without casting the molten metal; a step of casting an intermediate structure formed by integrating the water soluble core by casting the molten metal in a casting mold after the water soluble core is arranged at one part in the casting mold; and a step of dissolving the water soluble core structuring the intermediate structure.SELECTED DRAWING: Figure 1
Inventors:
Manabu Akao
Masakazu Tsuchiya
Yasushi Matsuse
Masakazu Tsuchiya
Yasushi Matsuse
Application Number:
JP2019066456A
Publication Date:
October 31, 2023
Filing Date:
March 29, 2019
Export Citation:
Assignee:
Art Metal Industry Co., Ltd.
International Classes:
H01L23/36; B22C1/00; B22C9/10; B22D29/00; H01L23/473
Domestic Patent References:
| JP2010099732A | ||||
| JP8267214A | ||||
| JP2012044140A | ||||
| JP10209357A | ||||
| JP2012227367A | ||||
| JP2017228554A |
Attorney, Agent or Firm:
Shunichi Yoshimura
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