US2017074602A1PendingUtilityA1

Cooling device and method for manufacturing the same

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Assignee: ELECTRONICS & TELECOMMUNICATIONS RES INSTPriority: Sep 15, 2015Filed: Jun 10, 2016Published: Mar 16, 2017
Est. expirySep 15, 2035(~9.1 yrs left)· nominal 20-yr term from priority
Inventors:Junsoo KimSeungeon MoonTae Kwang KimSolyee LimWon Chul Choi
H10W 40/73F28F 13/00F28F 2013/008F28F 2255/02F28F 21/065A61F 7/10F28F 2255/20F28F 27/02F28F 3/12
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Claims

Abstract

Provided is a cooling device including opening/closing holes disposed in one side thereof and a cavity. Each of the opening/closing holes is actively opened and closed according to a temperature of an external heat source, and the cavity is connected to the outside of the cooling device through the opening/closing holes.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A cooling device comprising opening/closing holes disposed in one side thereof and a cavity,
 wherein each of the opening/closing holes is actively opened and closed according to a temperature of an external heat source, and the cavity is connected to the outside of the cooling device through the opening/closing holes.   
     
     
         2 . The cooling device of  claim 1 , wherein, when viewed from a plan view, each of the opening/closing holes has one of a circular shape, a Z shape and a triangular shape. 
     
     
         3 . The cooling device of  claim 1 , wherein, when viewed from a plan view, a configuration of each of the opening/closing holes comprises a first portion extending in a first direction, a second portion extending from one end area of the first portion in a second direction perpendicular to the first direction, and a third portion extending from other end area of the first portion in a third direction that is perpendicular to the first direction and opposite to the second direction. 
     
     
         4 . The cooling device of  claim 1 , wherein, when viewed from a plan view, the opening/closing holes are spaced apart from each other, and
 the spaced distance between the opening/closing holes corresponds to a half of a size of each of the opening/closing holes.   
     
     
         5 . The cooling device of  claim 1 , further comprising a temperature-responsive polymer. 
     
     
         6 . The cooling device of  claim 5 , wherein the temperature-responsive polymer comprises poly(N-isopropylacrylamide). 
     
     
         7 . The cooling device of  claim 1 , wherein the cavity is provided in plurality. 
     
     
         8 . A method for manufacturing a cooling device, the method comprising:
 providing resist on a substrate;   pressing the resist by a mold to form a first portion;   bonding a second portion having a plate shape to a lower portion of the first portion,   wherein each of the first portion and the second portion comprises a temperature-responsive polymer, the cooling device comprises opening/closing holes disposed in one side thereof and a cavity, the opening/closing holes are actively opened and closed according to a temperature of an external heat source, and the cavity is connected to the outside of the cooling device through the opening/closing holes.   
     
     
         9 . The method of  claim 8 , wherein the resist is ultraviolet (UV) resist, and
 the forming of the first portion further comprises irradiating UV rays to the resist to cure the resist.   
     
     
         10 . The method of  claim 8 , wherein the resist comprises poly(N-isopropylacrylamide).

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