Evaporator having vertical arrangement of header pipe for vehicle air conditioner

Abstract

The present invention provides an evaporator having a vertical arrangement of header pipes for a vehicle air conditioner, the evaporator including: a pair of header pipes disposed to face each other with a gap therebetween, providing a circulation path for a coolant supplied in the cooling cycle, and discharging the coolant that has exchanged heat; a plurality of tubes laterally arranged between the pair of header pipes to communicate with the header pipes, connected in a longitudinal direction of the header pipes, and allowing a coolant flowing inside through inlets of the header pipes to exchange heat with air while flowing in a zigzag pattern toward outlets of the header pipes; and heat-dissipating fins disposed among the tubes and dissipating heat of vaporization from the tubes while passing the air supplied from the fan.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to Korean Patent Application No. KR 10-2015-0109551 filed on Aug. 3, 2015 and all the benefits accruing therefrom under 35 U.S.C. §119, the contents of which are incorporated by reference in their entirety.BACKGROUND OF THE INVENTION[0002]Field of the Invention[0003]The present invention relates to an evaporator of an air conditioner and, more particularly, to an evaporator for a vehicle air conditioner wherein the evaporator has a large heat transfer area compared with existing evaporators by vertically arranging header pipes.[0004]Description of the Related Art[0005]In general, vehicles are equipped with an air-conditioning system for supplying fresh air into the interior, which is contaminated by the breath of passengers, the external atmospheric state, and a change in temperature of the external air, and for maintaining a pleasant internal environment by keeping the interior temperature at a level suita...

AI Technical Summary

Benefits of technology

The present invention provides an evaporator for a vehicle air conditioner that maximizes heat transfer area by having a rectangular shape with a large aspect ratio and including vertically arranged header pipes and horizontally arranged tubes. Additionally, the evaporator prevents scattering of condensate water by a fan even in a horizontal arrangement of tubes by collecting and dropping condensate water discharged by cold air by force generated by the fan. The evaporator can provide the maximum efficiency of heat exchange at the same level and can manufacture without a limitation on the arrangement direction of tubes.

Problems solved by technology

Therefore, since tubes and heat-dissipating fins are only vertically arranged in the existing evaporators to discharge condensate water produced on the surfaces of the tubes and heat-dissipating fins, it is difficult to increase the heat transfer area for the same entire area.

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