# US 2013/0153189 A1 · Heat dissipating fin, heat dissipating device and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153189 A1 - Document ID: US20130153189A1 - Status: Published application - Kind: A1 - Application number: 13/329,313 - Filed: 2011-12-18 - Published: 2013-06-20 - Earliest claimed: 2011-12-18 - Inventors: Chia-Yu Lin; Yen Tsai - Web page: https://patentgrep.com/patent/US20130153189A1 ## CPC - B23P 15/26: heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)} - B21D 53/02: heat exchangers {or parts thereof}, e.g. radiators, condensers {fins, headers}(making finned or ribbed tubes by fixing strip material or the like to tubes B21C37/22) - B22D 19/0063: {finned exchangers (cylinders B22D19/0018)} - F28F 3/00: Plate-like or laminated elements; Assemblies of plate-like or laminated elements (specially adapted for movement F28F5/00) - F28F 3/022: {the means being wires or pins} - F28F 3/06: the means being attachable to the element - H10W 40/22: characterised by their shape, e.g. having conical or cylindrical projections - H10W 40/228: {the projecting parts being wire-shaped or pin-shaped} - B23P 2700/10: Heat sinks - F28F 2275/14: by using form fitting connection, e.g. with tongue and groove - Y10T 29/4935: Heat exchanger or boiler making - B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q) - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22) - 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 - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A heat dissipating device includes a base and a plurality of heat dissipating fins. Each of the heat dissipating fins includes a heat dissipating portion, a fixing portion and an overflow-proof structure. The fixing portion is fixed in the base. The overflow-proof structure is connected between the heat dissipating portion and the fixing portion. A width of the overflow-proof structure is larger than a width of the heat dissipating portion and larger than a width of the fixing portion. ## Claims ### Claim 1 A heat dissipating fin comprising: a heat dissipating portion; a fixing portion; and an overflow-proof structure connected between the heat dissipating portion and the fixing portion; wherein a width of the overflow-proof structure is larger than a width of the heat dissipating portion. ### Claim 2 (depends on 1) The heat dissipating fin of claim 1, wherein a length of the overflow-proof structure protruded from the fixing portion is between 1 mm and 10 mm. ### Claim 3 (depends on 1) The heat dissipating fin of claim 1, further comprising a recess structure formed on the fixing portion. ### Claim 4 (depends on 3) The heat dissipating fin of claim 3, further comprising a hook structure formed in the recess structure. ### Claim 5 (depends on 1) The heat dissipating fin of claim 1, further comprising a protruding structure protruded from one end of the fixing portion. ### Claim 6 (depends on 1) The heat dissipating fin of claim 1, further comprising an extending structure extended from the overflow-proof structure toward the fixing portion. ### Claim 7 (depends on 6) The heat dissipating fin of claim 6, wherein the overflow-proof structure and the extending structure are formed as U-shape. ### Claim 8 (depends on 1) The heat dissipating fin of claim 1, wherein a thickness of the overflow-proof structure is uniform or varies gradiently. ### Claim 9 A heat dissipating device comprising: a base; and a plurality of heat dissipating fins, each of the heat dissipating fins comprising: a heat dissipating portion; a fixing portion fixed in the base; and an overflow-proof structure connected between the heat dissipating portion and the fixing portion; wherein a width of the overflow-proof structure is larger than a width of the heat dissipating portion. ### Claim 10 (depends on 9) The heat dissipating device of claim 9, wherein each of the heat dissipating fins further comprises a recess structure formed on the fixing portion. ### Claim 11 (depends on 10) The heat dissipating device of claim 10, wherein each of the heat dissipating fins further comprises a hook structure formed in the recess structure. ### Claim 12 (depends on 9) The heat dissipating device of claim 9, wherein each of the heat dissipating fins further comprises a protruding structure protruded from one end of the fixing portion. ### Claim 13 (depends on 9) The heat dissipating device of claim 9, wherein each of the heat dissipating fins further comprises an extending structure extended from the overflow-proof structure toward the fixing portion. ### Claim 14 (depends on 13) The heat dissipating device of claim 13, wherein the overflow-proof structure and the extending structure are formed as U-shape. ### Claim 15 (depends on 9) The heat dissipating device of claim 9, wherein a thickness of the overflow-proof structure is uniform or varies gradiently. ### Claim 16 A method of manufacturing a heat dissipating device comprising: forming a plurality of heat dissipating fins by a forming process, wherein each of the heat dissipating fins comprises a heat dissipating portion, a fixing portion and an overflow-proof structure, the overflow-proof structure is connected between the heat dissipating portion and the fixing portion, a width of the overflow-proof structure is larger than a width of the heat dissipating portion; putting the fixing portion of each of the heat dissipating fins into a mold; pouring a melt metal material into the mold; and processing the melt metal material by a die casting process so as to form a base, wherein the base covers the fixing portion of each of the heat dissipating fins and the overflow-proof structure of each of the heat dissipating fins prevents the melt metal material from overflowing. ### Claim 17 (depends on 16) The method of claim 16, wherein the forming process is an aluminum extrusion process and each of the heat dissipating fins is a flat-type heat dissipating fin, or the forming process is a rivet forming process and each of the heat dissipating fins is a cylinder-type heat dissipating fin. ### Claim 18 (depends on 16) The method of claim 16, wherein forming a plurality of heat dissipating fins by a forming process further comprises forming a recess structure on the fixing portion. ### Claim 19 (depends on 16) The method of claim 16, wherein forming a plurality of heat dissipating fins by a forming process further comprises forming a protruding structure on the fixing portion and enabling the protruding structure to protrude from one end of the fixing portion. ### Claim 20 (depends on 16) The method of claim 16, wherein forming a plurality of heat dissipating fins by a forming process further comprises forming an extending structure on the overflow-proof structure and enabling the extending structure to extend from the overflow-proof structure toward the fixing portion. ### Claim 21 (depends on 1) The heat dissipating fin of claim 1, wherein the width of the overflow-proof structure is larger than a width of the fixing portion. ### Claim 22 (depends on 9) The heat dissipating device of claim 9, wherein the width of the overflow-proof structure is larger than a width of the fixing portion. ### Claim 23 (depends on 16) The method of claim 16, wherein the width of the overflow-proof structure is larger than a width of the fixing portion.