An omnidirectional heat conduction plate structure

By using a combination of staggered partitions and thermistors in an omnidirectional vapor chamber, adaptive working fluid distribution and heat management are achieved, solving the problem of uneven working fluid distribution in multi-chip modules in traditional vapor chambers, and improving temperature uniformity performance and reliability.

CN122360198APending Publication Date: 2026-07-10GUANGZHOU YIBOX TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU YIBOX TECH CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional vapor chambers in multi-chip modules suffer from uneven distribution of working fluid due to local hot spots, resulting in dryness in high-temperature areas and condensation retention in low-temperature areas, leading to decreased temperature uniformity. Existing technologies increase system complexity and failure risk.

Method used

The omnidirectional heat exchanger structure, which uses alternating horizontal and vertical baffles, combined with a thermistor to achieve passive control, automatically adjusts the opening and closing of the connecting holes according to the temperature difference of the sub-cavities, and prioritizes the flow of condensate to the low-temperature zone, forming a dual circulation of steam for positive heat transfer and liquid for reverse replenishment.

Benefits of technology

It significantly improves the temperature uniformity and reliability under multi-point heat sources, avoids the complexity of electronically controlled valves, has a simple structure, low cost, and strong anti-interference ability, and realizes rapid heat diffusion and uniform transfer.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122360198A_ABST
    Figure CN122360198A_ABST
Patent Text Reader

Abstract

An omnidirectional heat exchanger structure, relating to the field of temperature regulation, includes an upper plate and a lower plate, and multiple transverse and longitudinal partitions disposed between the upper and lower plates. The transverse and longitudinal partitions are arranged in a staggered manner, dividing the internal space between the upper and lower plates into multiple closed sub-cavities. Each transverse and longitudinal partition is also provided with multiple connecting holes, which connect adjacent sub-cavities. Each connecting hole is equipped with a thermistor, which achieves passive bending deformation through the thermal expansion difference of the three-layer thermistor structure. The opening and closing of the connecting holes are automatically adjusted according to the real-time temperature difference between the sub-cavities, so that the condensate in the high-temperature zone is preferentially replenished, effectively preventing the working fluid in the high-temperature zone from drying out, and significantly improving the temperature uniformity performance and reliability of the heat exchanger under multi-point heat source and non-uniform heat load conditions.
Need to check novelty before this filing date? Find Prior Art