The present invention cause any problems to the end plate is installed in the refrigerant suction / discharge part of the evaporator core, but extends the area of the refrigerant passage discloses a refrigerant suction / discharge of the passage resistance can be reduced in the sub-plate type evaporator for a vehicle air conditioner refrigerant passage resistance reducing device. ; configuration of the present invention the refrigerant flowing between the heat radiating fins are disposed a series of tube plate constituting the core of the core refrigerant suction / discharge unit in the end plate with the interval direction of the coolant inlet port or the discharge port and the refrigerant passage is formed of the core and the end plate the refrigerant passage space has a dimension that extends in a structure consisting of a coolant flow passage formed in the image of the refrigerant passage of the end plate and the core plate-type vehicle air conditioning evaporator refrigerant passage resistance reducing device is installed between the end plate of the on the contrary, so that the refrigerant passage resistance reducing device that can be brazed to the core assembly is in a state of being gajorip to the end plate, the end plate and the projections on the side to be bonded of the refrigerant passage resistance reducing device is provided, in the end plate characterized in that the projections are fitted are formed assemblers.
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