# US 9,041,040 B2 · LED lamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,041,040 B2 - Document ID: US9041040B2 - Status: Granted - Kind: B2 - Application number: 14/291,762 - Filed: 2014-05-30 - Published: 2014-09-25 - Granted: 2015-05-26 - Earliest claimed: 2011-09-13 - Assignees: Uniled Lighting Taiwan Inc. - Applicants: Uniled Lighting Taiwan Inc. - Inventors: Ming-Te Lin; Ming-Yao Lin; Heng Qiu - Web page: https://patentgrep.com/patent/US9041040B2 ## CPC - F21V 29/58: characterised by the coolants - F21K 9/23: Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings - F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb - F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10H 20/8583: {not being in contact with the bodies} - F21V 3/00: Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) - F21V 7/041: {with conical or pyramidal surface} - F21Y 2107/00: Light sources with three-dimensionally disposed light-generating elements - F21Y 2115/10: Light-emitting diodes [LED] - H05K 2201/10106: Light emitting diode [LED] - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A LED lamp is disclosed which has a plurality of light unit, each of the light unit has at least one flat metal lead for heat dissipation and the lower part of the metal lead is mounted on a heat sink for a further heat dissipation. ## Claims ### Claim 1 A LED lamp, comprising: a lead frame, further comprising: a first flat longitudinal elongated metal lead; a first angled metal, having a first longitudinal branch and a first latitudinal branch extending from a top of the first longitudinal branch; a second flat longitudinal elongated metal lead connected to the first angled metal; and a second angled metal, having a second longitudinal branch and a second latitudinal branch extending from a top of the second longitudinal branch; wherein a first gap is formed between the first latitudinal branch and a top of the first flat longitudinal elongated metal lead; and a second gap is formed between the second latitudinal branch and a top of the second flat longitudinal elongated metal lead; a first LED, straddled the first gap, and having a top end mounted on the first latitudinal branch and a bottom end mounted on the first flat longitudinal elongated metal lead; and a second LED, straddled the second gap, and having a top end mounted on the second latitudinal branch and a bottom end mounted on the second flat longitudinal elongated metal lead. ### Claim 2 (depends on 1) A LED lamp as claimed in claim 1, further comprising: a fixing tape, pasted on the first and second flat longitudinal elongated metal leads, the first and second latitudinal branches, and the first and second longitudinal branches. ### Claim 3 (depends on 1) A LED lamp as claimed in claim 1, further comprising: a molding compound, fixing the first and second flat longitudinal elongated metal leads and the first and second longitudinal branches. ### Claim 4 (depends on 1) A LED lamp as claimed in claim 1, further comprising: a flexible circuit board, having circuit contact electrically coupling to the first and second flat longitudinal elongated metal leads and the first and second longitudinal branches. ### Claim 5 (depends on 1) A LED lamp as claimed in claim 1, further comprising: a heat sink, attached to a lower portion of the first and second flat longitudinal elongated metal leads. ### Claim 6 (depends on 5) A LED lamp as claimed in claim 5, wherein the heat sink has a shape selected from the group consisting of a polygon, a rectangle, a rectangular wall and a circular wall in a top view. ### Claim 7 (depends on 6) A LED lamp as claimed in claim 6, further comprising: a center plug, inserted in a center of the circular wall heat sink. ### Claim 8 (depends on 6) A LED lamp as claimed in claim 6, further comprising: a circuit board, inserted in a center of the circular wall heat sink. ### Claim 9 (depends on 5) A LED lamp as claimed in claim 5, wherein the heat sink has an inner wall surface for the flat metal lead to attach. ### Claim 10 (depends on 5) A LED lamp as claimed in claim 5, wherein the heat sink is made of ceramic material. ### Claim 11 (depends on 5) A LED lamp as claimed in claim 5, wherein the heat sink is made of metal and an insulation material inserted between the heat sink and the first and second flat longitudinal elongated metal leads. ### Claim 12 (depends on 5) A LED lamp as claimed in claim 5, further comprising: a bulb, configured on a top of the heat sink; and a lamp base, configured on a bottom of the heat sink. ### Claim 13 (depends on 12) A LED lamp as claimed in claim 12, wherein the bulb has an outline selected from the group consisting of elliptical, round, and cup. ### Claim 14 (depends on 12) A LED lamp as claimed in claim 12, further comprising: a flexible circuit board, having circuit contact electrically coupling to each of the first and second flat longitudinal elongated metal leads. ### Claim 15 (depends on 1) A LED lamp as claimed in claim 1, wherein each of the first and second flat longitudinal elongated metal leads further comprises a zigzag portion. ### Claim 16 (depends on 1) A LED lamp as claimed in claim 1, further comprising: an inner heat sink, inserted in a center of an outer heat sink; a lower portion of the flat longitudinal elongated metal lead of a first plurality of light units, pasted on an inner wall surface of the inner heat sink; a lower portion of the flat longitudinal elongated metal lead of a second plurality of light units, pasted on an inner wall surface of the outer heat sink; and the first plurality of the light units has a height taller than that of the second plurality of light units. ### Claim 17 A LED lamp, comprising: a lead frame, further comprising: a first flat longitudinal elongated metal lead; a first angled metal, having a second flat longitudinal elongated metal lead with a first latitudinal branch on top; a second angled metal, having a longitudinal branch and a second latitudinal branch extending from a top of the longitudinal branch; wherein a first gap is formed between the first latitudinal branch and a top of the first flat longitudinal elongated metal lead; a second gap is formed between the second latitudinal branch and a top of the second flat longitudinal elongated metal lead; a first LED, straddled the first gap, having a top end mounted on the first latitudinal branch and having a bottom end mounted on a top end of the first flat longitudinal elongated metal lead; and a second LED, straddled the second gap, having a top end mounted on the second latitudinal branch and having a bottom end mounted on a top end of the second flat longitudinal elongated metal lead. ### Claim 18 (depends on 17) A LED lamp as claimed in claim 17, further comprising: a fixing tape, pasted on the first longitudinal elongated metal lead, the first latitudinal branch, the second flat longitudinal elongated metal lead, the second latitudinal branch, and the longitudinal branch. ### Claim 19 (depends on 17) A LED lamp as claimed in claim 17, further comprising: a molding compound, fixing the first longitudinal elongated metal lead, the second flat longitudinal elongated metal lead, and the longitudinal branch. ### Claim 20 (depends on 17) A LED lamp as claimed in claim 17, further comprising: a flexible circuit board, having circuit contact electrically coupling to the flat longitudinal elongated metal lead and the longitudinal branch. ### Claim 21 (depends on 17) A LED lamp as claimed in claim 17, further comprising: a heat sink, attached to a lower portion of each of flat longitudinal elongated metal lead. ### Claim 22 (depends on 21) A LED lamp as claimed in claim 21, wherein the heat sink has a shape selected from the group consisting of a polygon, a rectangle, a rectangular wall and a circular wall in a top view. ### Claim 23 (depends on 22) A LED lamp as claimed in claim 22, further comprising: a center plug, inserted in a center of the circular wall heat sink. ### Claim 24 (depends on 22) A LED lamp as claimed in claim 22, further comprising: a circuit board, inserted in a center of the circular wall heat sink. ### Claim 25 (depends on 21) A LED lamp as claimed in claim 21, wherein the heat sink has an inner wall surface for the flat metal lead to attach. ### Claim 26 (depends on 21) A LED lamp as claimed in claim 21, wherein the heat sink is made of ceramic material. ### Claim 27 (depends on 21) A LED lamp as claimed in claim 21, wherein the heat sink is made of metal and an insulation material inserted between the heat sink and the flat longitudinal elongated metal lead. ### Claim 28 (depends on 21) A LED lamp as claimed in claim 21, further comprising: a bulb, configured on a top of the heat sink; and a lamp base, configured on a bottom of the heat sink. ### Claim 29 (depends on 28) A LED lamp as claimed in claim 28, wherein the bulb has an outline selected from the group consisting of elliptical, round, and cup. ### Claim 30 (depends on 29) A LED lamp as claimed in claim 29, further comprising: a flexible circuit board, having circuit contact electrically coupling to each flat longitudinal elongated metal lead. ### Claim 31 (depends on 17) A LED lamp as claimed in claim 17, wherein each flat longitudinal elongated metal lead further comprises a zigzag portion. ### Claim 32 (depends on 17) A LED lamp as claimed in claim 17, further comprising: an inner heat sink, inserted in a center of an outer heat sink; a lower portion of the flat longitudinal elongated metal lead of a first plurality of light units, pasted on an inner wall surface of the inner heat sink; a lower portion of the flat longitudinal elongated metal lead of a second plurality of light units, pasted on an inner wall surface of the outer heat sink; and the first plurality of the light units has a height taller than that of the second plurality of light units. ### Claim 33 A LED lamp, comprising: a lead frame, further comprising: a flat longitudinal elongated metal lead; an angled metal, having a longitudinal branch and a latitudinal branch extending from a top of the longitudinal branch; wherein a gap is formed between the latitudinal branch and a top of the flat longitudinal elongated metal lead; and a LED, straddled the gap, having a top end mounted on the latitudinal branch and having a bottom end mounted on the flat metal lead; the LED lamp further comprising at least one of: a fixing tape, pasted on the longitudinal elongated metal, the latitudinal branch, and the longitudinal branch; a flexible circuit board, having circuit contact electrically coupling to the flat longitudinal elongated metal lead and the longitudinal branch; and a heat sink, attached to a lower portion of the flat longitudinal elongated metal lead.