US 11,719,428 B2
Compressive heat sink
Edward B. Stoneham, Los Altos, CA (US)
Assigned to XTREMELUX CORPORATION, Campbell, CA (US)
Appl. No. 17/604,753
Filed by Edward B. Stoneham, Los Altos, CA (US)
PCT Filed Apr. 18, 2020, PCT No. PCT/US2020/028888
§ 371(c)(1), (2) Date Oct. 18, 2021,
PCT Pub. No. WO2020/215042, PCT Pub. Date Oct. 22, 2020.
Claims priority of provisional application 62/836,086, filed on Apr. 19, 2019.
Prior Publication US 2022/0214033 A1, Jul. 7, 2022
Int. Cl. F21V 29/71 (2015.01); F21V 19/00 (2006.01); F21Y 115/10 (2016.01)
CPC F21V 29/717 (2015.01) [F21V 19/0035 (2013.01); F21Y 2115/10 (2016.08)] 16 Claims
OG exemplary drawing
 
1. A heat-sink assembly for removing heat from a light-emitting element, the light-emitting element having a thermal-interface surface, a first edge, and a second edge, the first edge and the second edge being on respective spaced-apart portions of the light-emitting element and the thermal-interface surface extending at least partially between the first and second edges, the heat-sink assembly comprising:
a heat-sink element composed of a solid material;
a heat-extraction surface thermally connected to the heat-sink element;
a force redirection mechanism configured to convert to a transverse force a compressive force applied through the action of the heat-sink element pushing the force redirection mechanism in a first direction against the first edge of the light-emitting element, the transverse force acting on the light-emitting element in a second direction transverse to the first direction, the transverse force causing the thermal-interface surface of the light-emitting element to press toward the heat-extraction surface; and
a restraining element acting on the second edge of the light-emitting element to resist the compressive force;
characterized in that
the heat-sink assembly includes a mechanism for continually maintaining the compressive force.