Electronic expansion valve and air conditioning system
By setting a preset gap and abutment mating part in the electronic expansion valve, the problem of poor flow consistency caused by the constant pulse process is solved, achieving precise flow control and extending service life, and simplifying the processing and assembly process.
WO2026124013A1PCT designated stage Publication Date: 2026-06-18ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO LTD
- Filing Date
- 2025-10-30
- Publication Date
- 2026-06-18
Smart Images
Figure CN2025131305_18062026_PF_FP_ABST
Abstract
An electronic expansion valve (100) and an air conditioning system. The electronic expansion valve (100) comprises a valve body assembly (10), a screw unit (20) and a valve element assembly (30), wherein the valve body assembly (10) is sequentially provided with an assembly hole (102) and a valve port (101) in an axial direction; one end of the screw unit (20) extends into the assembly hole (102) and is connected to the valve element assembly (30); and the valve element assembly (30) can be driven by the screw unit (20) to move in a direction close to or away from the valve port (101). The electronic expansion valve (100) has a fully-closed state and a pre-opened state, and in the fully-closed state and the pre-opened state, a first preset gap is formed between the valve element assembly (30) and the valve port (101).
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