机组冷媒检测结构及空调器
By setting up a centralized detection chamber in the indoor unit of the ceiling-mounted air conditioner and a gas collection pipe, air guide plate, and flow guide plate in the outer cavity of the heat exchanger, a closed detection chamber is formed, which solves the problems of low refrigerant detection efficiency and high leakage rate, and achieves high-efficiency refrigerant detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional ceiling-mounted indoor units have low refrigerant detection efficiency, are easily affected by airflow, and have a limited detection range. They cannot respond to refrigerant leaks in a timely manner, and the air guide plate cannot completely seal the air outlet, resulting in a high leakage rate.
The unit adopts a refrigerant detection structure, including a centralized detection chamber and a heat exchanger outer chamber, and is equipped with a gas collection pipe, air guide plate, flow guide plate and refrigerant detection device. The detection efficiency is improved by sealing the detection chamber and guiding the airflow.
It effectively reduces airflow interference during refrigerant detection, improves refrigerant accumulation efficiency, reduces air leakage rate, ensures refrigerant concentration is within the detection range, and improves the overall efficiency of refrigerant detection.
Smart Images

Figure CN224516971U_ABST
Abstract
Claims
1. A refrigerant detection structure for a unit, comprising a unit casing (1) and a heat exchanger (2) provided in the unit casing (1), characterized in that, The heat exchanger (2) and the unit casing (1) are separated into a centralized detection chamber (3) and a heat exchanger outer chamber (4). The unit refrigerant detection structure also includes: A refrigerant detection device (5) is installed in the centralized detection chamber (3); Several gas collection tubes (6) are distributed in the outer cavity (4) of the heat exchanger to guide the gas from various parts of the outer cavity (4) of the heat exchanger to the inside of the centralized detection cavity (3) for collection.
2. The machine refrigerant detection structure according to claim 1, wherein Also includes: Several air guide plates (9) are rotatably installed at the corresponding air outlets (111) at the bottom of the unit casing (1) that connect to the outer cavity (4) of the heat exchanger; A driving device is used to drive the air guide plate (9) to rotate in both directions to open and close the corresponding air outlet (111); A sealing strip (93) is installed around the air guide plate (9) to contact the unit housing (1) around the air outlet (111) when the air guide plate (9) closes the air outlet (111) to form a seal.
3. The machine refrigerant detection structure according to claim 2, wherein Also includes: Several guide plates (10) are disposed in the outer cavity (4) of the heat exchanger to guide the airflow to the gas inlet (62) of the gas collection pipe (6).
4. The machine refrigerant detection structure according to claim 3, wherein The guide plate (10) forms an angle of 30-45 degrees with the horizontal plane, which is used to guide the airflow upward from the bottom of the heat exchanger outer cavity (4).
5. The machine refrigerant detection structure according to any one of claims 1 to 4, wherein The refrigerant detection device (5) is located in the airflow convergence area (31) at the top of the centralized detection chamber (3), and the gas outlet (61) of the gas collection pipe (6) is connected to the airflow convergence area (31).
6. The machine refrigerant detection structure according to Claim 5, wherein The centralized detection chamber (3) and the heat exchanger outer chamber (4) are formed by a number of sheet metal parts (7) and heat insulation parts located between the heat exchanger (2) and the unit shell (1).
7. The machine refrigerant detection structure according to Claim 6, wherein The refrigerant detection device (5) is a gas sensor installed on the side of the vertical sheet metal part (7) facing the airflow convergence area (31).
8. The machine refrigerant detection structure according to any one of claims 1 to 4, wherein Also includes: A flow guide fan is located inside the gas collection tube (6) to create a negative pressure inside the gas collection tube (6) to guide the gas flow.
9. An air conditioner characterized by comprising: Includes the refrigerant detection structure for the unit as described in any one of claims 1-8.
10. The air conditioner of claim 9, wherein The air conditioner in question is an indoor unit with a ceiling.