Heat Transfer Profile

• US 20160178286A1
• Filed: 07/02/2014
• Published: 06/23/2016
• Est. Priority Date: 07/04/2013
• Status: Abandoned Application

• Current Assignee: Lumitar Array Lighting Technology Finland Ltd.
• Original Assignee: Lumitar Array Lighting Technology Finland Ltd.
• Inventors: Piarkiev, Igor
• Application Number:
  US14/902,630
• Publication Number:
  US 20160178286A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21V 17/002 with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function F21V17/10 takes precedence
• CPC Class Codes: F21V 29/713 in direct thermal and mechanical contact of each other to form a single system
• CPC Class Codes: F21V 29/745 the fins or blades being planar and inclined with respect to the joining surface from which the fins or blades extend
• CPC Class Codes: F28D 2021/0029 Heat sinks
• CPC Class Codes: F28F 1/16 the means being integral with the element, e.g. formed by extrusion F28F1/22 takes precedence
• CPC Class Codes: F28F 1/18 the element being built-up from finned sections
• CPC Class Codes: F28F 1/22 the means having portions engaging further tubular elements
• CPC Class Codes: F28F 21/084 from aluminium or aluminium alloys

Abstract

A heat transfer profile has coaxial cylindrical inner and outer peripheries. A cylindrical first space is formed inside the inner periphery. The cylindrical outer periphery has a shape cut on at least one side. Blade-like heat transfer flanges extend between and contact both the inner periphery and the outer periphery. A second space is provided inside the cut part of the outer periphery, defined in part by a section of the inner periphery and two heat transfer flanges. The second space is open at least from the cut side of the outer periphery to the exterior of the outer periphery.

Claims

1. A heat transfer profile for transferring heat, wherein the heat transfer profile comprises:

a cylindrical uniform inner periphery, inside of which a cylindrical first space is formed,

a cylindrical outer periphery which is arranged coaxially outside the cylindrical inner periphery and which has a shape that is cut at least on one side thereof, and

blade-like heat transfer flanges which, only over a uniform part of the outer periphery, extend between the inner periphery and the outer periphery and which are in contact with both the inner and the outer periphery, whereby

inside the cut part of the outer periphery, a second space is formed which is defined at least by a section of the inner periphery and two heat transfer flanges and which is open at least from the cut side of the outer periphery to the exterior of the outer periphery.

2. A heat transfer profile as claimed in claim 1, wherein the outer periphery is cut at least on two sides, whereby inside each cut part of the outer periphery, a second space is formed which is defined at least by a section of the inner periphery and two heat transfer flanges and which is open at least from the cut side of the outer periphery to the exterior of the outer periphery.

3. A heat transfer profile as claimed in claim 2, in which the cut sides of the outer periphery are arranged with respect to one another on substantially opposite sides of the outer periphery.

4. A heat transfer profile as claimed in claim 1, in which the heat transfer flanges are arranged in a position substantially perpendicular to a cross direction of the cylindrical inner periphery and outer periphery.

5. A heat transfer profile as claimed in claim 1, which is formed as a structure open at ends of the cylindrical inner periphery and outer periphery.

6. A heat transfer profile as claimed in claim 1, which comprises aluminium or aluminium alloy.

7. A heat transfer profile as claimed in claim 1, in which the inner periphery, the outer periphery, and the heat transfer flanges form a uniform, fixed structure.

8. A heat transfer profile as claimed in claim 1, wherein the outer periphery comprises, at edges of the cut part, projections which are perpendicular to the cross direction of the cylindrical outer periphery and which extend towards the inner periphery.

9. A heat transfer profile as claimed in claim 1, which comprises a base plate arranged in the first space and in contact with the inner periphery.

10. A device structure comprising a heat transfer profile according to claim 1, and at least one of the following:

a light source, an electronic component, a fan, a blower, and a fastener.