A backflow-proof inverted liquid storage dryer
By designing an anti-backflow inverted liquid receiver dryer and using components such as support springs and flow-stopping rings to control the refrigerant flow direction, the problem of backflow in the liquid receiver dryer is solved, thus achieving stable operation of the air conditioning system and protection of the compressor.
CN224285026UActive Publication Date: 2026-05-26LONGQUAN HENGFENG AUTOMOBILE AIR CONDITION FITTINGS
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Patent Information
- Application Number
- CN202520728763.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Technical Problem
The liquid receiver dryer in existing automotive air conditioning systems is prone to refrigerant backflow when the vehicle undergoes rapid changes in attitude, which affects air conditioning efficiency and may damage the compressor.
Method used
A backflow-preventing inverted liquid receiver dryer was designed, comprising a filter and a backflow-preventing chamber. By using components such as a support spring and a flow-stopping ring, the flow direction of the refrigerant is controlled by monitoring pressure and flow rate to prevent backflow.
Benefits of technology
It effectively prevents refrigerant backflow, ensures stable refrigeration cycle, protects the compressor, and maintains stable operation of the air conditioning system.
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Smart Images
Figure CN224285026U_ABST
Abstract
This utility model discloses an anti-backflow inverted liquid storage dryer, comprising a dryer body, a connecting cavity fixedly connected to the lower end of the dryer body, a refrigerant inlet fixedly connected to the outer side of the upper end of the connecting cavity, a liquid delivery pipe fixedly installed in the middle of the lower end of the connecting cavity, a refrigerant connection port fixedly connected to the outer side of the lower end of the liquid delivery pipe, a limiting ring fixedly installed on the outer curved surface of the lower end of the liquid delivery pipe, a support spring fixedly installed on the upper end of the limiting ring, a compression plate fixedly installed on the upper end of the support spring, a compression rod fixedly installed on the outer curved surface of the compression plate, a filter movably connected to the upper end of the compression plate and the compression rod, the filter having filter holes penetrating through its upper and lower ends, and a support plate fixedly installed at the top of the dryer body. This utility model effectively prevents refrigerant from flowing back into the dryer body, ensuring that the refrigeration cycle always proceeds in the correct direction and maintaining the stable operation of the automotive air conditioning system.
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