A vehicle-mounted refrigerator refrigeration system with double air ducts and step-by-step heat exchange and a control method thereof

By employing a dual-duct tiered heat exchange structure and adaptive flow control, the problems of complex refrigerant flow distribution and liquid slugging risk in vehicle refrigerator refrigeration systems have been solved, achieving efficient and reliable cooling effects and improving system energy efficiency and space utilization.

CN122408348APending Publication Date: 2026-07-17WUHAN CLEVER SOAR SUNROOF SYST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN CLEVER SOAR SUNROOF SYST CO LTD
Filing Date
2026-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing vehicle-mounted refrigerator refrigeration systems have complex refrigerant flow distribution, which is prone to flow deviation, resulting in low system reliability. The heat dissipation of the semiconductor refrigeration module is also hindered, posing a risk of liquid slugging.

Method used

It adopts a dual-duct cascade heat exchange structure, and the refrigerant flows through a three-stage series flow topology. Combined with an adaptive flow control unit, it achieves orderly flow of refrigerant and improves thermodynamic dimension. It physically isolates the internal and external circulation ducts, uses the waste heat of the semiconductor refrigeration module for refrigerant vaporization, and simplifies flow control.

Benefits of technology

It improves the overall cooling efficiency of the system, reduces the failure rate, eliminates the risk of liquid slugging, has a compact structure, and improves space utilization.

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Abstract

本发明公开了一种双风道梯级换热的车载冰箱制冷系统及其控制方法,涉及车辆热管理及制冷技术领域。旨在解决传统系统极度依赖电子膨胀阀以及TEC废热难排导致压缩机易液击的问题。本系统通过在冷源下游依次串联第一换热单元、第二换热单元(内埋于相变蓄能罐)、第三换热单元,配合内外隔离双风道,形成三阶压榨架构。冷媒顺次完成深度过冷的强冷风、冻结相变蓄能、吸纳TEC热端废热防液击气化三大功能。本发明通过回收废热气化残余冷媒彻底截断液击风险,适配机械膨胀阀,且利用主动风道打破半导体热岛效应,使得冰箱制冷速度、寿命与能效比均获得显著提升。
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