Heat exchanger and air conditioner

By designing a finned structure, increasing the contact area between the fins and the heat exchange tubes, and forming a through-drainage channel, the problems of reduced heat exchange area and poor drainage performance in existing air conditioning heat exchangers are solved, thereby improving the heat exchange efficiency and drainage capacity of the heat exchanger.

CN224285608UActive Publication Date: 2026-05-26HISENSE (GUANGDONG) AIR CONDITIONER
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Patent Information

Application Number
CN202520838486.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-05-26
Estimated Expiration
2035-04-28

AI Technical Summary

Technical Problem

The existing fin structure of air conditioner heat exchangers results in a reduced heat exchange area and a lower heat exchange rate. Furthermore, they are prone to frost formation under heating conditions and have poor drainage performance.

Method used

Design a finned structure including a flat area, a corrugated area, and a transition area. The tube holes in the finned unit rows are staggered to increase the contact area between the fins and the heat exchange tubes, forming a through drainage channel to improve turbulence and heat exchange efficiency.

Benefits of technology

The increased contact area between the fins and the heat exchange tubes improves heat exchange capacity and drainage capacity, enhancing the heat exchanger's performance, especially ensuring smooth drainage of condensate under evaporation conditions.

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Abstract

The utility model discloses a heat exchanger and an air conditioner. The heat exchanger comprises fins and a heat exchanger, the heat exchange pipes are arranged in the pipe holes in a penetrating mode, and refrigerants circulate in the heat exchange pipes; each fin unit comprises a flat area and a fin area, wherein the flat areas are arranged in the circumferential direction of the pipe holes; the corrugated area is arranged around the flat area, and at least one middle corrugation and the flat area are oppositely arranged in the length direction of the fin; the transition area is obliquely connected between the flat area and the corrugated area; wherein the diameter of the flat area is D, the sum of the wavelengths of the at least one middle ripple is lambda, and D and lambda meet the relational expression that lambda is larger than or equal to 0.9 D and smaller than or equal to 1.1 D. Therefore, the contact area of the fins and the heat exchange tubes can be increased, and the heat exchange amount of the heat exchange tubes and the fins can be improved. The inclined plane formed by intersection of the flat area and the middle corrugation is small, residual water cannot be formed, and a through drainage channel can be formed, so that condensate water under the evaporation working condition of the heat exchanger can be smoothly drained, and the heat exchange capacity of the evaporation working condition of the heat exchanger can also be improved.
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