Heat sink and communications product
US10820448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jul 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/427
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat sink includes a base and a plurality of fins. A root of the fin is connected to the base. A heated area, a dropping pipe, and a spacing strip between the heated area and the dropping pipe are formed in the fin. A first passage and a second passage are formed between the heated area and the dropping pipe. A hydraulic diameter of a pipeline in the heated area is less than a critical dimension. A hydraulic diameter of a pipeline of the dropping pipe is greater than or equal to the critical dimension, and a pressure of liquid at an intersection of the second passage and the dropping pipe is greater than a pressure of liquid at an intersection of the second passage and the heated area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.