US 12,302,539 B2
Electronic device with active cooling
Bernd Hildebrand, Rodgau (DE); and Georg Nehm, Niedernberg (DE)
Assigned to Continental Automotive Technologies GmbH, Hannover (DE)
Filed by Continental Automotive Technologies GmbH, Hannover (DE)
Filed on Oct. 14, 2022, as Appl. No. 17/965,944.
Claims priority of application No. 10 2021 211 599.3 (DE), filed on Oct. 14, 2021.
Prior Publication US 2023/0121655 A1, Apr. 20, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20909 (2013.01) 12 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a housing;
at least one device circuit board;
a heat sink; and
a fan with a fan rotor,
wherein the at least one device circuit board is arranged in an interior of the housing and has at least one electronic component,
wherein the at least one electronic component implements a function of the electronic device,
wherein the heat sink absorbs heat from the at least one electronic component and is cooled by an air stream generated by the fan rotor and which flows over the heat sink,
wherein the housing is connected to a main body of the fan,
wherein, when the main body and the housing are in a connected state, an opening to the interior of the housing is closed off,
wherein the main body is connected to a bushing on which the fan rotor is mounted for rotation,
wherein, in the connected state, a chamber is formed which is separated from the interior of the housing and in which the fan rotor is arranged,
wherein the chamber forms a housing for the fan rotor,
wherein the main body and housing are connected to one another by an adapter element, and
wherein the adapter element is composed of a multi-constitutent injection-molded component, having a first portion which has an electrically and thermally conductive material, and a second portion, which has an electrically conductive and acoustically damping material.