Heat exchanging device

The utility model provides a heat exchanging device, includes: a housing, locate the fixed structure of interior heat exchange core of casing and heat exchange core, the casing is about by, around, it constitutes to control the curb plate, the heat exchange core is inserted for the vertical direction and is set up in the casing, heat exchange core fixed structure is by the handle, guide piece and guiding groove constitute, handle and the formation as an organic whole of guide piece, set up in the both sides of heat exchange core, the guiding groove comprises the 1st guiding groove and the 2nd guiding groove, the 1st guiding groove sets up on preceding curb plate, preceding curb plate forms with being integrative, the 2nd guiding groove sets up on the intermediate lamella relative with preceding curb plate, the intermediate lamella forms with being integrative, the guide piece comprises the 1st guide piece and the 2nd guide piece, the 1st guide piece and the mutual block of the 1st guiding groove, the 2nd guid