Pool heat pump active ejection type explosion-proof outdoor unit using r290 refrigerant

By adopting an active ejector explosion-proof structure in the outdoor unit of the heat pump, the fan and electrical control components are separated into different chambers. The refrigerant is quickly discharged by using dampers to control the ventilation openings and concentration sensors, which solves the problem of easy leakage and explosion of R290 refrigerant and improves the safety and reliability of the equipment.

CN122170560APending Publication Date: 2026-06-09GUANGDONG NEW ENERGY TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG NEW ENERGY TECH DEV
Filing Date
2026-03-23
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

R290 refrigerant is prone to leakage in the outdoor unit of the heat pump, which poses a risk of flammability and explosion, especially when it accumulates near the electrical control components, which can easily cause fires or explosions. Existing explosion-proof measures are insufficient.

Method used

The active ejector explosion-proof structure divides the internal space of the chassis into an active ejector chamber and a negative pressure leakage chamber. The fan and electrical control components are placed in different chambers. The opening and closing of the ventilation opening is controlled by the damper mechanism. The refrigerant is discharged by the negative pressure of the fan. Combined with the concentration sensor and the damper control system, rapid refrigerant discharge is achieved.

Benefits of technology

This effectively prevents refrigerant from directly contacting electrical control components, reducing the risk of fire and explosion, improving safety, ensuring rapid refrigerant discharge, preventing accumulation, and enhancing equipment safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122170560A_ABST
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Abstract

The application relates to the technical field of heat pump systems, in particular to a swimming pool heat pump active injection type explosion-proof outdoor unit adopting R290 refrigerant, which comprises a machine box, a fan and a compression circulation mechanism, wherein the inside of the machine box is provided with a partition plate, the inside space of the machine box is divided into an active injection cavity and a negative pressure leakage cavity by the partition plate, the fan is arranged in the active injection cavity, the compression circulation mechanism is arranged in the negative pressure leakage cavity, and a normal-pressure equipment cabin is arranged on the outer surface of the machine box and located at one side of the negative pressure leakage cavity. The inside space of the machine box is divided into several independent cavities by the partition plate, the compression circulation mechanism, the fan and the electric control assembly are arranged in different cavities respectively, and therefore the electric control assembly is prevented from directly contacting the refrigerant after refrigerant leakage.
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