A temperature-driven continuously tunable thermal conductivity device

By using a temperature-driven design that stacks multiple stages of phase change materials in parallel between heat sinks, the problem of continuous control of thermal conductivity in existing technologies is solved, enabling efficient thermal management in fields such as lithium-ion batteries, deep space exploration, and building energy conservation. This provides a low-cost and highly flexible thermal management solution.

CN122429657APending Publication Date: 2026-07-21HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
Filing Date
2026-06-23
Publication Date
2026-07-21

Smart Images

  • Figure CN122429657A_ABST
    Figure CN122429657A_ABST
Patent Text Reader

Abstract

The application relates to the technical field of heat management structure and device, and provides a temperature-driven thermal conductivity continuously adjustable device, which comprises an upper heat sink, a lower heat sink and a temperature-controlled heat conduction component; the temperature-controlled heat conduction component is fixed between the parallel upper heat sink and lower heat sink; the temperature-controlled heat conduction component comprises at least two phase change materials with different phase change temperatures, which are stacked in parallel in sequence according to the phase change temperature, and the extension direction of the stack is parallel to the upper heat sink; with the change of temperature, each phase change material gradually switches between the low thermal conductivity state and the high thermal conductivity state, so that the equivalent thermal conductivity of the device is continuously adjustable. The device is low in cost, can be designed without relying on external energy or control signals, is low in cost, temperature-driven and autonomously responsive, and realizes the continuous adjustment of thermal conductivity in a wide temperature range.
Need to check novelty before this filing date? Find Prior Art