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CN-224230385-U - Heat exchanger and refrigeration equipment

CN224230385UCN 224230385 UCN224230385 UCN 224230385UCN-224230385-U

Abstract

The embodiment of the application provides a heat exchanger and refrigeration equipment. The heat exchanger comprises a heat exchange tube and fins connected with the heat exchange tube, wherein the fins are provided with top edges, bottom edges and first side edges and second side edges which are oppositely arranged, the bottom edges are connected with the heat exchange tube, and gaps are formed in the areas, close to the top edges and the first side edges, of the fins. According to the heat exchanger provided by the embodiment of the application, the notch is formed on the side edge of the top end of the fin, so that on one hand, the speed boundary layer formed on two sides of the fin by airflow can be effectively damaged, the heat exchange efficiency is improved, on the other hand, the direct contact area of the airflow and the fin can be reduced, the flow resistance is reduced, the heat exchange efficiency of the heat exchanger can be effectively improved by improving the heat exchange efficiency and reducing the flow resistance, and further the refrigerating speed of a refrigerator comprising the heat exchanger can be improved, and the energy consumption of the refrigerator can be reduced.

Inventors

  • ZHANG RONGSHENG
  • LI QUANXING
  • SUN CHUANCHUAN
  • WEI JIAN

Assignees

  • TCL家用电器（合肥）有限公司

Dates

Publication Date
20260512
Application Date
20250424

Claims (10)

  1. 1. The utility model provides a heat exchanger, its characterized in that includes the heat exchange tube and with the fin that the heat exchange tube links to each other, the fin has the topside and the base of relative setting and the first side and the second side of relative setting, wherein, the base with the heat exchange tube links to each other, be close to on the fin the topside with the region of first side is equipped with the breach.
  2. 2. The heat exchanger according to claim 1, wherein the heat exchanger is a condenser or an evaporator, and/or, The first side being the windward side of the heat exchanger and/or, The heat exchange tube and the fins are of an integrated structure.
  3. 3. The heat exchanger of claim 1, wherein the fins are wavy.
  4. 4. A heat exchanger according to claim 3, wherein the ratio L/a between the amplitude L and the wavelength a of the fins is 6.85-15.7.
  5. 5. The heat exchanger of claim 1, wherein the ratio of the length Cl of the notch to the length La of the fin is 0.01 to 0.5, and/or, The ratio Ch/Fh between the height Ch of the notch and the height Fh of the fin is 0.01-0.2.
  6. 6. The heat exchanger of claim 1, wherein the heat exchange tube comprises a plurality of straight tube sections and a plurality of bent tube sections, the plurality of straight tube sections are sequentially arranged and are arranged at intervals, and any adjacent two straight tube sections are connected through the bent tube sections; The straight tube section is connected with a plurality of fins, and the fins are sequentially arranged according to the extending direction of the straight tube section.
  7. 7. The heat exchanger of claim 6, wherein the straight tube section has an angle of 50 DEG to 90 DEG between each of the plurality of fins and the extending direction of the straight tube section, and/or, On the straight pipe section, the distance between any two adjacent fins is 2 mm-4 mm.
  8. 8. A heat exchanger according to any one of claims 1 to 7, wherein the heat exchange tube has a cross section having a length to width ratio of 6 to 13, and/or, The heat exchange tube is internally provided with a plurality of micro-channels, and the micro-channels extend according to the extending direction of the heat exchange tube and penetrate through two ends of the heat exchange tube.
  9. 9. The heat exchanger according to claim 8, wherein the number of the micro channels in the heat exchange tube is 3 to 6, and/or, The micro-channel is internally provided with a bulge, the bulge is connected with the inner wall of the micro-channel, and the bulge extends according to the extending direction of the heat exchange tube.
  10. 10. A refrigeration device comprising a heat exchanger according to any one of claims 1-9.

Description

Heat exchanger and refrigeration equipment Technical Field The application relates to the technical field of electric appliance manufacturing, in particular to a heat exchanger and refrigeration equipment. Background With the improvement of living standard of people, a refrigerator is taken as one of indispensable electric appliances in modern family life, the refrigerator is mainly divided into a direct cooling type refrigerator, an air cooling type refrigerator, a hybrid type refrigerator and a variable frequency type refrigerator, wherein the principle of an air cooling type refrigerator is that air is utilized for refrigerating, a refrigerating system of the air cooling type refrigerator mainly comprises a compressor, a condenser, an evaporator, a capillary tube and the like, the compressor compresses refrigerant into high-temperature high-pressure gas, then the condenser is used for radiating heat, the refrigerant is cooled into high-pressure liquid, then the high-pressure liquid enters the evaporator after being throttled and depressurized by the capillary tube, and the refrigerant is evaporated and absorbed in the evaporator, so that the air temperature around the evaporator is reduced, and the refrigerating is realized. The condenser is an important part for heat conversion in the refrigerator, and its structure directly affects the refrigerating effect. The fin type condenser is a type of condenser commonly used in a refrigerator, and increases a heat radiating area by installing fins on a surface of a heat exchange tube, thereby improving heat radiating efficiency. However, the heat exchange efficiency of the existing fin type condenser is not ideal, so that the refrigeration speed of the refrigerator is low and the energy consumption is high. Disclosure of utility model Based on the above, the embodiment of the application provides a heat exchanger and refrigeration equipment. In a first aspect, an embodiment of the present application provides a heat exchanger, including a heat exchange tube and a fin connected to the heat exchange tube, where the fin has a top edge and a bottom edge that are oppositely disposed, and a first side edge and a second side edge that are oppositely disposed, where the bottom edge is connected to the heat exchange tube, and a notch is disposed on a region of the fin near the top edge and the first side edge. In some embodiments, the heat exchanger is a condenser or an evaporator, and/or, The first side being the windward side of the heat exchanger and/or, The heat exchange tube and the fins are of an integrated structure. In some embodiments, the fins are wavy. In some embodiments, the ratio L/A between the amplitude L and the wavelength A of the fin is 6.85-15.7. In some embodiments, the ratio Cl/La between the length Cl of the notch and the length La of the fin is 0.01-0.5, and/or, The ratio Ch/Fh between the height Ch of the notch and the height Fh of the fin is 0.01-0.2. In some embodiments, the heat exchange tube comprises a plurality of straight tube sections and a plurality of bent tube sections, wherein the plurality of straight tube sections are sequentially arranged and are arranged at intervals, and any two adjacent straight tube sections are connected through the bent tube sections; The straight tube section is connected with a plurality of fins, and the fins are sequentially arranged according to the extending direction of the straight tube section. In some embodiments, the included angle between each of the plurality of fins and the extending direction of the straight tube section is 50-90 degrees, and/or, On the straight pipe section, the distance between any two adjacent fins is 2 mm-4 mm. In some embodiments, the heat exchange tube has a cross-section with a length to width ratio of 6 to 13, and/or, The heat exchange tube is internally provided with a plurality of micro-channels, and the micro-channels extend according to the extending direction of the heat exchange tube and penetrate through two ends of the heat exchange tube. In some embodiments, the number of microchannels within the heat exchange tubes is 3-6, and/or, The micro-channel is internally provided with a bulge, the bulge is connected with the inner wall of the micro-channel, and the bulge extends according to the extending direction of the heat exchange tube. In a second aspect, embodiments of the present application provide a refrigeration apparatus comprising a heat exchanger as described above. According to the heat exchanger provided by the embodiment of the application, the notch is formed on the side edge of the top end of the fin, so that on one hand, the speed boundary layer formed on two sides of the fin by airflow can be effectively damaged, the heat exchange efficiency is improved, on the other hand, the direct contact area of the airflow and the fin can be reduced, the flow resistance is reduced, the heat exchange efficiency of the heat exchanger can be effectively improved