Flat tube heat exchanger and assembling method thereof

Abstract

The invention discloses a flat tube heat exchanger which comprises fins and flat tubes, wherein the fins are provided with pipeline slots; the flat tubes are connected with the fins; and the pipeline slots are U-shaped, and the opening ends of the pipeline slots are arranged at the same side of the fins. The invention also discloses an assembling method of the flat tube heat exchanger. The method comprises the following steps: 1) inserting and fixing the fins sequentially in the fixing slots of a first fixing table and a second fixing table; 2) inserting the flat tubes sequentially and horizontally into the pipeline slots of fin sets of the first fixing table; 3) enabling the second fixing table to be close to the first fixing table, and enabling the fins fixed on the second fixing table to be inserted between two adjacent fins fixed on the first fixing table respectively; 4) inserting and fixing the flat tubes completely in the pipeline slots of the fin sets of the second fixing table; and 5) fixing the fins and the flat tubes in an interference or welding mode. According to the invention, the flat tubes are inserted along a transverse direction, the stroke of the flat tubes is shortened, the assembling method is easy to combine with other methods so as to realize connection, and the fins have simple structures, and are easy to manufacture.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a flat tube heat exchanger and an assembly method thereof. Background technique [0002] When the room air conditioner is running in cooling mode, the indoor air flows through the evaporator to reduce the temperature. At the same time, because the temperature of the surface of the evaporator is generally significantly lower than the dew point temperature of the air, when the air flows through the surface of the evaporator, part of the moisture in the air will be precipitated, thereby forming condensed water on the surface of the evaporator. The condensed water on the surface of the evaporator should be drained in time. If the condensed water accumulates on the surface of the evaporator, it will block the air flow channel, increase the flow resistance of the air, and reduce the efficiency of the evaporator: water droplets may also blow into Indoor conditions lead to substandard quality of the ...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, when assembling, the fins are stacked first, and then the flat tubes are inserted vertically for assembly; the insertion stroke of the flat tubes from the lower end to the top of the fins is relatively large, which has a great influence on the flanging of the fins, resulting in It is difficult to determine the spacing of the fins, which will adversely affect the fit between the fins and the flat tubes and reduce the heat dissipation efficiency of the heat exchanger

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