US 11,629,919 B2Granted

Method of manufacturing cooling device using heat pipe

AssigneeMh Technologies Inc.

InventorJin-Ho Yoo

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Abstract

The present invention relates to a method of manufacturing a cooling device using a heat pipe in which, using casting, the heat pipe is embedded inside a housing, and the method includes a filling step in which a predetermined support member is filled inside a pipe to prevent deformation of the pipe by a pressure of a melt being injected into a cavity of a mold that is closeable, a pipe seating step in which the pipe filled with the predetermined support member is seated in the cavity, a melt injecting step in which the melt is injected into the cavity to surround the pipe, a cooling and withdrawing step in which the injected melt is cooled and a molded product is withdrawn, an injecting step in which a working fluid is injected into the pipe through an injection end, and a finishing step in which, after the injecting step, the pipe is sealed.

Claims7

Dependent claims

A method of manufacturing a cooling device using a heat pipe, the method comprising:

a filling step in which a predetermined support member is filled inside a pipe to prevent deformation of the pipe by a pressure of a melt being injected into a cavity of a mold that is closeable;
a pipe seating step in which the pipe filled with the predetermined support member is seated in the cavity;
a melt injecting step in which the melt is injected into the cavity to surround the pipe;
a cooling and withdrawing step in which the injected melt is cooled and a molded product formed by the melt being cooled is withdrawn;
an injecting step in which a working fluid is injected into the pipe through an injection end formed at one end of the pipe;
a finishing step in which, after the injecting step, the pipe is sealed;
between the cooling and withdrawing step and the injecting step, a preprocessing step in which foreign matter is removed in advance from an inner side surface of the pipe;
between the preprocessing step and the injecting step, a tube blocking step in which an opposite end disposed opposite the injection end is sealed;
and
between the tube blocking step and the injecting step, an airtightness testing step in which airtightness of the pipe is tested before injecting the working fluid thereinto.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/951,261Filed 18 Nov 2020
Priority: KR 10-2019-014840019 Nov 2019
Published: US 2021/0148644 A120 May 2021
Granted: 18 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

F28D 15/0233
In which the medium condenses and evaporates, e.g. heat pipes: the conduits having a particular shape, e.g. non-circular cross-section, annular
F28D 15/0283
In which the medium condenses and evaporates, e.g. heat pipes: means for filling or sealing heat pipes
B22D 19/0072
Casting in, on, or around objects which form part of the product: for making objects with integrated channels
B22D 19/0081
Casting in, on, or around objects which form part of the product: pretreatment of the insert, e.g. for enhancing the bonding between insert and…