# US 2014/0153248 A1 · Combination led lamp and heat sink structure

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- Number: US 2014/0153248 A1
- Document ID: US20140153248A1
- Status: Published application
- Kind: A1
- Application number: 13/692,765
- Filed: 2012-12-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Inventors: Chao-Chin YEH
- Web page: https://patentgrep.com/patent/US20140153248A1

## CPC

- F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V 29/713: {in direct thermal and mechanical contact of each other to form a single system}
- F21V 19/005: {by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound}
- F21V 19/0055: {by screwing}
- F21Y 2115/10: Light-emitting diodes [LED]
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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

## Abstract

A combination LED lamp and heat sink structure includes a heat sink formed by bending or stamping a metal sheet member into shape to provide a plurality of upright walls and mounting holes, a circuit board carrying a LED or LEDs at the front side and having a plurality of through holes, a plurality of metal connection members mounted in the mounting holes and the through holes to fixedly connect the heat sink and the circuit board together, and a lampshade surrounding the circuit board to let the heat sink be exposed to the outside.

## Claims

### Claim 1

A combination LED lamp and heat sink structure, comprising:
a heat sink made of at least one metal sheet member being curved into a predetermined shape, said heat sink comprising a plurality of upright walls and a plurality of mounting holes, said mounting holes being directly formed in said metal sheet member;
a circuit board comprising a circuit layout located at a front side thereof, at least one LED (light-emitting diode) electrically connected to said circuit layout, and a plurality of through holes;
a plurality of metal connection members respectively mounted in said mounting holes of said heat sink and said through holes of said circuit board to fixedly secure said heat sink to said circuit board; and
a lampshade comprising a body surrounding said circuit board and an open space surrounded by said body for the passing of said heat sink to the outside of said lampshade.

### Claim 2 (depends on 1)

The combination LED lamp and heat sink structure as claimed in claim 1, wherein said heat sink is made by continuously bending an elongated metal sheet member into said upright walls in a radial manner.

### Claim 3 (depends on 2)

The combination LED lamp and heat sink structure as claimed in claim 2, wherein said heat sink comprises a plurality of lugs respectively extended from said, upright walls; the mounting holes of said heat sink are respectively located at said lugs.

### Claim 4 (depends on 3)

The combination LED lamp and heat sink structure as claimed in claim 3, wherein each said lug is located at one respective bent of said upright walls; each said mounting hole is located at one respective said lug.

### Claim 5 (depends on 1)

The combination LED lamp and heat sink structure as claimed in claim 1, wherein said through holes of said circuit board are respectively disposed at locations corresponding to the mounting holes of said heat sink.

### Claim 6 (depends on 1)

The combination LED lamp and heat sink structure as claimed in claim 1, wherein said heat sink comprises a plurality of vertically staggered rib structures.

### Claim 7 (depends on 6)

The combination LED lamp and heat sink structure as claimed in claim 6, wherein each said rib structure is formed of two said upright walls and one said horizontal wall between the two upright walls, and each said horizontal wall carries one said mounting hole.

### Claim 8 (depends on 1)

The combination LED lamp and heat sink structure as claimed in claim 1, wherein said metal connection members are rivets.

### Claim 9 (depends on 1)

The combination LED lamp and heat sink structure as claimed in claim 1, wherein said heat sink is made of curving a single piece of metal sheet member into shape.

### Claim 10 (depends on 1)

The combination LED lamp and heat sink structure as claimed in claim 1, wherein said heat sink is made of curving multiple pieces of metal sheet members into a predetermined shape and then affixing these shaped multiple pieces of metal sheet members together.