Denso, a global automotive supplier has developed a new automotive climate control unit that can be used from compact to luxury cars. Unlike the conventional climate control units, this product has a new structure that is smaller and lighter which enabled it to standardize components without compromising performance. DENSO's highly standardized automotive climate control unit is said to be the world's first of its kind.

"Many of the subcomponents for this product, such as air mix door, servo motor and blower fan were newly developed, which enabled to reduce the unit's size by 20 percent compared to Denso's conventional model, and significantly standardized the unit," said Katsuhisa Shimokawa, executive director responsible for DENSO's Thermal Systems Business Unit.

By using sophisticated forming technologies, the thickness of the air mix door reduced the depth and the weight of the new unit. Furthermore, the conventional unit requires several servo motors to operate the air mix door, but in the new unit, which has standardized doors, needs only one. With this, it enables the new unit case to be smaller.

The wing blades of the new blower fan is re-shaped to best suit the wind flow. Denso says that this allows the new fan to become 15% smaller and consume 20% less power, maintaining high air discharge capacity.

The new smaller and lighter climate control unit can also be used in eco-friendly cars. Cars with start/stop system, the evaporator in the unit can be replaced with a cold storage evaporator. On the other hand, for hybrid and electric vehicles, the heater core can be replaced with a heat pump air conditioning system. Moreover, changing the blower fan to two layer structure allows external air to circulate with internal air simultaneously, enabling it to have a limited air conditioning heat source.

Denso's new climate control unit could pave the way for automatic climate control units to be used in more vehicle models.