Electronic expansion valve

CN224498835UActive Publication Date: 2026-07-14ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The refrigerant noise generated by the electronic expansion valve during operation affects the user's comfort experience.

Method used

Design an electronic expansion valve that includes a valve body component and a silencing component. The valve body component has a thin-walled valve port, a straight section, and a flared section. Combined with the silencing component, the refrigerant noise is reduced through optimized structural design.

Benefits of technology

It effectively reduces refrigerant noise and improves user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of electronic expansion valve, valve port part is set into thin-walled structure, it further includes straight section, flared portion and mounting portion, valve port can be interconnected with the hole of straight section and the inner cavity of flared portion, flared portion carries out cavity structure design, and is equipped with sound-absorbing component structure, by the optimization design of above-mentioned valve body component structure, thin-walled valve port part is simultaneously matched with flared portion and sound-absorbing component structure, when refrigerant flows through valve port, the situation that the flow rate of improved can greatly reduce in valve port part evaporation forms cavitation bubble expansion rupture, the contact area of flow guide of flared portion is enlarged with sound-absorbing component, contact is relatively more sufficient, improve noise suppression effect, can overall improve the refrigerant noise of electronic expansion valve, improve user use comfort.
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