Water chamber connecting structure of parallel flow type heat exchanger with harmonica-shaped channel

Abstract

The invention relates to a water chamber connecting structure of a parallel flow type heat exchanger with a harmonica-shaped channel. The water chamber connecting structure is mainly used for solving the problems that heat dissipation pipes of a heat exchanger of the current electric vehicle have smaller welded surfaces with water chambers and are prone to leak. The parallel flow type heat exchanger comprises an upper water chamber, a lower water chamber and heat dissipation pipes between two water chambers and is characterized in that the upper water chamber and the lower water chamber are flat, wherein a plurality of symmetric connecting holes are formed in the upper surfaces of the upper water chamber and the lower water chamber; the heat dissipation pipes are flat and are provided with elbow structures at two sides; the elbows are inserted into the connecting holes and mutually match with the connecting holes; the lower surfaces, close to the elbows, of the heat dissipation pipes are attached to the upper surfaces of the water chambers. Compared with the traditional vertically-welded surfaces, the current welded surfaces are greater than the traditional vertically-welded surfaces, so that the heat exchanger is relatively firm and is unlikely to leak. By adopting NOCOLOK brazing, welded quality is good and structure is reliable; a refrigerant is chosen as a medium, so that the cooling system of the electric vehicle is simplified.

Description

technical field [0001] The invention relates to the field of thermal management systems of electric vehicles, in particular to a water chamber connection structure of a harmonica channel parallel flow heat exchanger. Background technique [0002] A heat exchanger is an energy-saving device that transfers heat between materials between two or more fluids at different temperatures. It transfers heat from a higher fluid to a lower temperature fluid, making the fluid The temperature reaches the index specified by the process. [0003] Battery packs in electric vehicles require thermal management devices (heat exchangers) to ensure their performance, durability and safety. Performance can be compromised at low temperatures, while durability can be compromised at high temperatures. [0004] Chinese patent: CN204142045U discloses a heat exchanger, including [0005] The first liquid chamber and the second liquid chamber; a plurality of flat through pipes communicating the first ...

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the deficiencies of the background technology, the present invention provides a harmonica channel parallel flow heat exchanger water chamber connection structure, which mainly solves the problem that the existing electric vehicle heat exchanger has less welding surface between the heat dissipation pipe and the water chamber and is easy to leak

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