BENDING TYPE HEAT EXCHANGER AND MANUFACTURING METHOD THEREFOR

摘要

Provided are a bending type heat exchanger (1) and a manufacturing method therefor. The bending type heat exchanger (1) comprises a first collecting pipe (10) and a second collecting pipe (20). The first collecting pipe (10) and the second collecting pipe (20) are arranged apart from each other. A plurality of flat pipes (30) are arranged between the first collecting pipe (10) and the second collecting pipe (20), both ends of each flat pipe (30) are respectively connected to the first collecting pipe (10) and the second collecting pipe (20), and each flat pipe (30) is provided with flat sections (31) and a bent section (32) located between the flat sections (31). The bent sections (32) twist at a preset angle around the longitudinal axis of the flat pipes (30) relative to the flat sections (31). The bent sections (32) of the plurality of flat pipes (30) form a bent section array extending in the thickness direction of the flat pipes (30). The plurality of flat pipes (30) are divided into a plurality of groups. The bent sections (32) of the same group of flat pipes (30) have the same twisting direction, and the bent sections (32) of the two adjacent groups of flat pipes (30) have opposite twisting directions. The heat exchanger has a more regular and beautiful appearance, a better assembly effect, a broad range of application and good reliability.