An evaporation unit and thermal management system

By designing a compact evaporator unit structure, the superheat and temperature of the refrigerant are improved, solving the liquid slugging problem caused by liquid refrigerant entering the compressor at the evaporator outlet, and improving the efficiency and reliability of the automotive thermal management system.

CN114562832BActive Publication Date: 2026-07-10ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
Filing Date
2020-11-27
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In automotive thermal management systems, the refrigerant at the evaporator outlet may contain liquid refrigerant. If this liquid refrigerant directly enters the compressor, it can cause liquid slugging, which is difficult to handle effectively with existing technologies, affecting system efficiency and reliability.

Method used

A compact evaporation unit was designed, including a first heat exchange section, a second heat exchange section, and connecting components. Through the design of refrigerant flow channels and connecting channels, the evaporation unit can improve the superheat of the refrigerant, reduce the liquid refrigerant content, and directly connect to the compressor, simplifying the system layout.

Benefits of technology

It increases the temperature and superheat of the refrigerant at the outlet of the evaporator unit, reduces the content of liquid refrigerant, reduces the risk of liquid slugging, improves the cooling efficiency and ease of connection of the system, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN114562832B_ABST
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Abstract

The application discloses an evaporation unit and a heat management system, comprising a first heat exchange part, a second heat exchange part and a connecting part, the evaporation unit has a refrigerant flow channel, the refrigerant flow channel comprises a first heat exchange flow channel, a second heat exchange flow channel and a third heat exchange flow channel, the connecting part has a first connecting passage and a second connecting passage, the first connecting passage and the second connecting passage are independently arranged on the connecting part, the second connecting passage is communicated with the outlet of the first heat exchange passage, the first connecting passage is communicated with the second connecting passage, and the first connecting passage is communicated with the outlet of the third heat exchange passage, so that the refrigerant from the first heat exchange passage can be combined with the refrigerant from the third heat exchange passage, the overall structure of the evaporation unit is compact, and the evaporation temperature of the refrigerant at the outlet of the evaporation unit can be improved when the evaporation unit is used in a system.
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