Car cavity separation foaming piece

The utility model relates to a car cavity separation foaming piece has skeleton body and foaming body, the foaming body is through the peripheral portion of cladding at skeleton body that mould plastics, periphery portion is including upper surface, lower surface and side, be equipped with at least one recess group in the portion of periphery, recess group is including first recess and second recess, first recess extends and laterally also form the opening to the lower surface from the upper surface, the second recess extends and laterally also form the opening to the upper surface from the lower surface, full recess group is filled to the foaming body. The utility model discloses can prevent effectively that the foaming body from separating with skeleton body in the foaming process or in the use, avoid the sealed bad problem because of foaming body and skeleton body separation cause. 本实用新型涉及种汽车空腔阻隔发泡件，具有骨架体和发泡体；所述发泡体通过注塑包覆在骨架体的外围部；所述外围部包括上表面、下表面和侧面；所述外围部上设有至少个凹槽组；所述凹槽组包括第凹槽和第二凹槽；所述第凹槽从上表面向下表面延伸并且在侧面也形成开口；所述第