Integrated high-low voltage power distribution device

By combining phase change heat pipes and mechanical transmission components into a passive drive architecture, the flow channel topology is dynamically reshaped, solving the heat dissipation problem of traditional power distribution equipment under high protection. This achieves self-consistent logic cooling and efficient heat dissipation, avoiding the risks of failure and condensation, and ensuring long-term maintenance-free operation and safety of the equipment.

CN122370945APending Publication Date: 2026-07-10SICHUAN ZHANGU ELECTRIC POWER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN ZHANGU ELECTRIC POWER TECHNOLOGY CO LTD
Filing Date
2026-05-09
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional enclosed power distribution equipment struggles to balance extreme heat load dissipation while pursuing high-level sealing protection. Furthermore, its active heat dissipation architecture, which relies on power-consuming fans and electronic temperature control, is prone to mechanical and electrical failures under harsh operating conditions. In low-load standby mode, it cannot spontaneously reshape the aerodynamic physical boundary to resist the backflow of cold and humid airflow, leading to insulation condensation and short circuits.

Method used

A passive drive architecture is constructed by combining phase change heat pipes with elastic bellows and mechanical transmission components. Temperature sensing and actuation are achieved through the principle of phase change thermodynamics. Combined with a dual-state sliding variable configuration heat exchange array and adaptive external exhaust blades, the flow channel topology is dynamically reshaped to achieve self-consistent logic cooling, avoiding electronic temperature control node and fan failures, and blocking the backflow of cold and humid air.

Benefits of technology

It achieves spontaneous convection cooling under passive conditions, avoids mechanical and electrical failures, ensures long-term maintenance-free operation, balances high protection level and extreme heat dissipation requirements, eliminates the risk of insulation condensation, and improves the safety and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of electrical equipment technology and discloses an integrated high and low voltage power distribution device, including a distribution cabinet. The distribution cabinet has an air inlet on its bottom side wall and an exhaust outlet on its top side wall. A phase change heat pipe is installed inside the distribution cabinet. The evaporation end of the phase change heat pipe is wrapped with and fixedly connected to an aluminum nitride ceramic base. The aluminum nitride ceramic base is attached to and fixedly connected to the heating core node inside the distribution cabinet. The condensation end of the phase change heat pipe is fixedly connected to an elastic bellows, which undergoes linear displacement driven by the internal pressure of the phase change heat pipe. By insulatingly attaching the evaporation end of the phase change heat pipe to the heating core and connecting the elastic bellows and mechanical transmission components in series at the condensation end, a passive drive architecture that directly converts electrical waste heat into physical displacement is constructed, fundamentally eliminating the risk of electrical failure in active heat dissipation components under high voltage or harsh operating conditions.
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