公开(公告)号：US20250052509A1

公开(公告)日：2025-02-13

申请号：US18795641

申请日：2024-08-06

Applicant: Danfoss A/S

Inventor： Zhifeng ZHANG ,  Kaike XU ,  Ming SHAO

IPC: F28D9/00 ,  F28F3/08

Abstract: The present disclosure provides a plate heat exchanger comprising: a plurality of heat transfer plates stacked in a first direction, wherein the heat transfer plate is configured to have a heat transfer plate edge on its side in a second direction perpendicular to the first direction; first and second fluid channels formed between adjacent heat transfer plates and fluidly isolated from each other; two first ports formed in the heat transfer plate on the side and an opposite other side of the heat transfer plate in the second direction, respectively, and fluidly communicated to the first fluid channel; and a hole formed in the heat transfer plate between one of the two first ports located on the side and the heat transfer plate edge in a second direction, which is fluidly communicated to the first fluid channel and fluidly isolated from the second fluid channel. By disposing the hole in a bottom area of the plate heat exchanger, excessive water remained in the plate heat exchanger when it is not in use is avoided, so as to prevent freezing in the plate heat exchanger.