# US 2013/0153175 A1 · Heat sink having heat pipe protection mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153175 A1 - Document ID: US20130153175A1 - Status: Published application - Kind: A1 - Application number: 13/566,100 - Filed: 2012-08-03 - Published: 2013-06-20 - Earliest claimed: 2011-08-04 - Assignees: Cooler Master Co., Ltd. - Inventors: Chong-Ren LIN - Web page: https://patentgrep.com/patent/US20130153175A1 ## CPC - H05K 7/20318: {Condensers} - F28D 15/0233: {the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence)} - F28D 15/0275: {Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores} - F28F 1/32: the means having portions engaging further tubular elements - F28F 19/06: of metal - H10W 40/226: {characterised by projecting parts, e.g. fins to increase surface area (leadframes for cooling H10W70/461)} - H10W 40/73: for cooling by change of state - F28F 2265/02: in the form of screens or covers - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A heat sink having a heat pipe protection mechanism includes a heat pipe, a metallic sleeve and a plurality of heat-dissipating fins. The heat pipe has an evaporating section and a condensing section. The evaporating section is combined with a heat-dissipating base. The metallic sleeve has a closed end and an open end opposite to the closed end. The condensing section is disposed through the open end of the metallic sleeve. Each of the heat-dissipating fins has a through-hole corresponding to the heat pipe. The metallic sleeve having the condensing section disposed therein is fitted in the through-hole. By this arrangement, the condensing section is completely separated from the outside, so that the heat pipe can be protected from suffering damage due to external impacts or getting rusty. Thus, the lifetime of the heat pipe is maintained, and the frequency of repairing the heat sink is reduced. ## Claims ### Claim 1 A heat sink having a heat pipe protection mechanism, including; at least one heat pipe comprising an evaporating section and a condensing section; a metallic sleeve having a closed end and an open end opposite to the closed end, the condensing section being disposed through the open end of the metallic sleeve; and a plurality of heat-dissipating fins each having a through-hole corresponding to the heat pipe, the metallic sleeve having the condensing section disposed therein being fitted in the through-hole. ### Claim 2 (depends on 1) The heat sink having a heat pipe protection mechanism according to claim 1, further including a heat-conducting base, and the evaporating section being combined with the heat-conducting base. ### Claim 3 (depends on 2) The heat sink having a heat pipe protection mechanism according to claim 2, wherein the heat-conducting base is provided with at least one trough corresponding to the heat pipe, and the heat pipe is located in the trough. ### Claim 4 (depends on 2) The heat sink having a heat pipe protection mechanism according to claim 2, wherein the heat pipe has a flat surface in flush with a surface of the heat-conducting base. ### Claim 5 (depends on 2) The heat sink having a heat pipe protection mechanism according to claim 2, wherein the condensing section protrudes out of an end surface of the heat-conducting base. ### Claim 6 (depends on 1) The heat sink having a heat pipe protection mechanism according to claim 1, wherein both ends of the metallic sleeve have an opening respectively, one of two openings is combined with a plug, and the plug is configured to seal the opening to form the closed end. ### Claim 7 (depends on 1) The heat sink having a heat pipe protection mechanism according to claim 1, wherein the metallic sleeve is made of materials different from that of the heat pipe. ### Claim 8 (depends on 7) The heat sink having a heat pipe protection mechanism according to claim 7, wherein the metallic sleeve is made of aluminum or stainless steel. ### Claim 9 (depends on 1) The heat sink having a heat pipe protection mechanism according to claim 1, wherein a heat-conducting medium is applied between the heat pipe and the metallic sleeve. ### Claim 10 (depends on 1) The heat sink having a heat pipe protection mechanism according to claim 1, wherein a gap is formed between adjacent two of the heat-dissipating fins, and the periphery of the through-hole of each heat-dissipating fin is formed with an annular flange for maintaining the gap. ### Claim 11 A heat sink having a heat pipe protection mechanism, including; a heat-conducting base; at least one heat pipe comprising an evaporating section and a condensing section, the evaporating section being combined with the heat-conducting base; a partitioning plate fixed to the heat-conducting base and provided with at least one penetration hole corresponding to the heat pipe, the condensing section of the heat pipe protruding beyond the penetration hole; a metallic sleeve having a closed end and an open end opposite to the closed end, the condensing section being disposed through the open end of the metallic sleeve; and a plurality of heat-dissipating fins each having a through-hole corresponding to the heat pipe, the metallic sleeve having the condensing section disposed therein being fitted in the through-hole. ### Claim 12 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the heat-conducting base is provided with at least one trough corresponding to the heat pipe, and the heat pipe is located in the trough. ### Claim 13 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the heat pipe has a flat surface in flush with a surface of the heat-conducting base. ### Claim 14 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the condensing section protrudes out of an end surface of the heat-conducting base. ### Claim 15 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the partitioning plate is located near the open end of the metallic sleeve. ### Claim 16 (depends on 15) The heat sink having a heat pipe protection mechanism according to claim 15, wherein the penetration hole of the partitioning plate is formed into a stepped shape, and the open end of the metallic sleeve abuts against the penetration hole. ### Claim 17 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the partitioning plate is provided on an end surface of the heat-conducting base. ### Claim 18 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the periphery of the partitioning plate has a stepped stopping portion. ### Claim 19 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the partitioning plate and the heat-conducting base are integrally formed together. ### Claim 20 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein both ends of the metallic sleeve have an opening respectively, one of the openings is combined with a plug, and the plug is configured to seal the opening to form the closed end. ### Claim 21 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein the metallic sleeve is made of materials different from that of the heat pipe. ### Claim 22 (depends on 21) The heat sink having a heat pipe protection mechanism according to claim 21, wherein the metallic sleeve is made of aluminum or stainless steel, and a heat-conducting medium is applied between the heat pipe and the metallic sleeve. ### Claim 23 (depends on 11) The heat sink having a heat pipe protection mechanism according to claim 11, wherein a gap is formed between adjacent two of the heat-dissipating fins, and the periphery of the through-hole of each heat-dissipating fin is formed with an annular flange for maintaining the gap.