Warm case that leads to

The utility model provides a car load air conditioning system warm case that leads to, the problem that the to be was solved is that present warm case that leads to is keeping how reducing wind loss under volume invariant's the circumstances, makes gas flow uniform distribute, its technical essential is that warm case that leads to includes: left side casing, right casing and lower casing, left side casing is mutually supported with right casing, and lower casing setting is in the below of left and right casing, the casing part of casing setting before the evaporimeter is the echelonment down, the echelonment casing part inner wall department of bending is the right angle, the utility model has the advantages that because the HVAC box structure before the evaporimeter becomes stepped structure, has increased more multistage ladder, is favorable to the evenly distributed of air current, the pressure distribution is more reasonable, reduces the loss of the amount of wind. 本实用新型提供了种整车空调系统暖通箱，所要解决的问题是现有暖通箱在保持体积不变