Cooling arrangement for cooling an apparatus

Patent metadata

Field	Value
Publication number	US-10428817-B2
Application number	US-201716080831-A
Country	US
Kind code	B2
Filing date	Mar 13, 2017
Priority date	Mar 18, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A cooling arrangement (1) for cooling of an apparatus (10) which in use may generate heat is disclosed. The cooling arrangement (1) comprises a first member (2), which comprises a first base (4) and a first spiral wrap (5) extending from the first base (4), and a second member (3), which comprises a second base (6) and a second spiral wrap (7) extending from the second base (6). The first spiral wrap (5) and the second spiral wrap (7) are interleaved. The first member (2) is configured to at least thermally couple the apparatus (10) thereto. At least one of the first member (2) and the second member (3) can be moved so as to result in an orbiting motion of one of the first spiral wrap (5) and the second spiral wrap (7) relatively to the other one of the first spiral wrap (5) and the second spiral wrap (7) such that a volume of fluid in at least one space between the first spiral wrap (5) and the second spiral wrap (7) progressively moves during the orbiting motion. Thereby, a flow of fluid between the first spiral wrap (5) and the second spiral wrap (7) is generated which cools the first member (2) by means of dissipation of heat generated by the apparatus (10) by way of transfer of heat from the first member (2) to the flow of fluid between the first spiral wrap (5) and the second spiral wrap (7).

First claim

The invention claimed is:

1. A cooling arrangement for cooling of an apparatus which when used may generate heat, the cooling arrangement comprising:
a first member comprising a first base and a first spiral wrap extending from the first base, the first member being configured to at least thermally couple the apparatus thereto;
a second member comprising a second base and a second spiral wrap extending from the second base, the first spiral wrap and the second spiral wrap being interleaved;
wherein at least one of the first member and the second member can be moved so as to result in an orbiting motion of one of the first spiral wrap and the second spiral wrap relatively to the other one of the first spiral wrap and the second spiral wrap such that a volume of fluid in at least one space between the first spiral wrap and the second spiral wrap progressively moves during the orbiting motion, thereby generating a flow of fluid between the first spiral wrap and the second spiral wrap, which flow of fluid cools the first member by means of dissipation of heat generated by the apparatus by way of transfer of heat from the first member to the flow of fluid between the first spiral wrap and the second spiral wrap, further comprising a heat spreader ( 26 ) coupled to the first member, wherein the first member is configured to couple the apparatus to the first member via the heat spreader.

2. A cooling arrangement according to claim 1 , further comprising a drive unit configured to controllably move at least one of the first member and the second member so as to result in the orbiting motion.

3. A cooling arrangement according to claim 2 , wherein the drive unit comprises at least one electromagnetic and/or electromechanical actuator configured to controllably generate forces which affect the at least one of the first member and the second member in order to controllably move the at least one of the first member and the second member so as to result in the orbiting motion, wherein the at least one electromagnetic and/or electromechanical actuator is a linear actuator.

4. An apparatus according to claim 3 , wherein the at least one electromagnetic and/or electromechanical actuator is configured to controllably generate forces which affect the at least one of the first member and the second member in order to controllably move the at least one of the first member and the second member along at least two mutually perpendicular imaginary axes in respective oscillatory motions, resulting in the orbiting motion of one of the first spiral wrap and the second spiral wrap relatively to the other one of the first spiral wrap and the second spiral wrap.

5. A cooling arrangement according to claim 1 , further comprising:
a support structure, wherein at least a portion of the support structure is configured to resiliently support at least one of the first member and the second member in the cooling arrangement while permitting movement of the at least one of the first member and the second member resulting in the orbiting motion.

6. A cooling arrangement according to claim 5 , wherein the at least one electromagnetic and/or electromechanical actuator is configured to controllably apply forces onto at least a portion of the support structure in order to controllably move the at least one of the first member and the second member so as to result in the orbiting motion, the movement of the at least one of the first member and the second member being effected by way of the resilient supporting of the at least one of the first member and the second member by the support structure.

7. A cooling arrangement according to claim 1 , wherein the first member is configured to couple the apparatus thereto.

8. A cooling arrangement according to claim 7 , wherein the first base comprises a first side and a second side, wherein the first spiral wrap extends from the first side, and wherein the first member is configured to couple the apparatus to the second side.

9. A cooling arrangement according to claim 1 , wherein the first member is fixedly arranged and the second member is movable relatively to the first member so as to result in an orbiting motion of the second spiral wrap relatively to the first spiral wrap.

10. A cooling arrangement according to claim 9 , wherein the first member and the second member are arranged such that the second spiral wrap can be driven to orbit eccentrically relatively to the first spiral wrap.

11. A cooling arrangement according to claim 1 , wherein at least one of first spiral wrap and the second spiral wrap is arranged such that it is wrapped at most 1.5 revolutions about its origin.

12. A system comprising:
an apparatus which when used may generate heat; and

a cooling arrangement according to claim 1 for dissipating heat generated by the apparatus when it is used, the cooling arrangement being at least thermally coupled to the first member of the apparatus.

13. A system according to claim 12 , wherein the apparatus comprises a light-emitting device configured to emit light when in use.

14. A system according to claim 13 , wherein the light emitting device comprises a carrier substrate on which one or more light-emitting diodes are arranged.

Assignees

• Signify Holding Bv

Inventors

• Kadijk Simon Eme

Classifications

• H10W40/47

  by flowing liquids, e.g. forced water cooling · CPC title

• H10W40/10

  Arrangements for heating · CPC title

• F21V29/60

  characterised by the use of a forced flow of gas, e.g. air · CPC title

• F21V29/78

  with helically or spirally arranged fins or blades · CPC title

• F04C18/0261

  Details of the ports, e.g. location, number, geometry · CPC title