1results about How to "Increase dynamic pressure" patented technology

This utility model discloses a heat exchanger and an air conditioner having the same. The heat exchanger includes a heat exchange section and an inlet section. The heat exchange section has multiple refrigerant channels, and the inlet section includes a main pipe and multiple branch pipes. The branch pipes are connected to the multiple refrigerant channels. The two ends of the main pipe are an upstream end and a downstream end, respectively. The branch pipes are spaced apart along the length of the main pipe and are all connected to the main pipe. The main pipe has a reduced diameter section, and the flow area of ​​the main pipe decreases at the reduced diameter section from the upstream end to the downstream end. At least one branch pipe is arranged upstream and downstream of the reduced diameter section. In the above technical solution, the inlet section has a simple structure, does not require a distributor, occupies little space, is easy to arrange, and can save production and assembly costs. Furthermore, by setting a reduced diameter section in the main pipe of the inlet section, the flow velocity of the refrigerant flowing through the reduced diameter section increases, the dynamic pressure increases, and the static pressure decreases, resulting in a more balanced flow rate in the branch pipes along the main pipe, which is beneficial to improving the heat exchange effect of the heat exchanger.