Heat sink obtained by casting and assembly of associated semiconductors

By optimizing the shape of fins and ejectors in heat sinks, the cooling efficiency is enhanced, addressing flow resistance issues and improving thermal dissipation in compact electronic devices.

FR3145255B1Active Publication Date: 2025-05-02VITESCO TECHNOLOGIES GMBH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
FR2023000576
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-01-23
Publication Date
2025-05-02
Estimated Expiration
2043-01-23

AI Technical Summary

Technical Problem

Existing heat sinks with ejectors on cooling fins create flow resistance, reducing the efficiency of air or liquid cooling in electronic devices, particularly in compact designs for automotive applications.

Method used

Adapting the shape of the fins and ejectors in the heat sink to minimize flow resistance by offsetting neighboring ejectors and incorporating undulations or inflection points, ensuring a consistent fluid passage width and reducing the number of ejectors in certain areas.

Benefits of technology

Improves cooling efficiency by reducing flow resistance, enhancing thermal dissipation by up to 18% compared to traditional designs, allowing for more effective heat management in compact electronic devices.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000012_0000
    Figure 00000012_0000
  • Figure 00000012_0001
    Figure 00000012_0001
  • Figure 00000013_0000
    Figure 00000013_0000
Patent Text Reader

Abstract

A heat sink (2) having a base intended to be in thermal contact with an electronic device to be cooled, cooling fins (6) extending in a principal direction and having at least one ejector (8). In this heat sink, two ejectors (8) corresponding to two adjacent fins (6) are offset, i.e., not opposite each other with respect to the principal direction of the fins (6), and near at least one ejector (8), a fin (6) adjacent to the fin associated with said ejector (8) has a corrugation with a concave area (18) arranged opposite said ejector (8). Abstract figure: Figure 6
Need to check novelty before this filing date? Find Prior Art