Heat exchanger for vehicle

Abstract

A heat exchanger for a vehicle includes a heat exchange unit in which a plurality of plates are layered to alternately form a first flow channel and a second flow channel therein and heat exchange unit having one surface fixedly mounted in an expansion valve. First and second inflow holes are formed separately at both surfaces of the heat exchange unit and connected to the first flow channel and the second flow channel, respectively. First and second exhaust holes are formed separately in a diagonal direction of the first and second inflow holes at both surfaces of the heat exchange unit and connected to the first flow channel and the second flow channel, respectively. A noise reducer is integrally connected to the heat exchange unit at another surface of the heat exchange unit and reduces noise and vibration occurring when an operation fluid that is injected through the second inflow hole moves.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2014-0175825 filed in the Korean Intellectual Property Office on December 9, 2014, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to a heat exchanger for a vehicle. More particularly, the present disclosure relates to a heat exchanger for a vehicle, which is integrally installed in an expansion valve, capable of improving air conditioning performance and reducing noise and vibration generated when refrigerant flows. Background technique [0004] Generally, a vehicle has an air conditioning system so that the temperature inside the vehicle is maintained at a desired temperature regardless of the outside temperature. [0005] Such air conditioning systems typically include: a compressor, which compresses refrigerant; a condenser, which condenses and liquefies the compr...

AI Technical Summary

Problems solved by technology

[0007] However, the conventional air-conditioning system has a structure to supercool the condensed refrigerant, and thus pressure drops are frequently generated inside the condenser inlet pipe and outlet pipe due to the complicated refrigerant flow

[0008] Further, since the condenser has a limited size, and the inner space of the engine room is small, the length of the air conditioner pipe in which the refrigerant flows is limited

Consequently, the minimum required length for lowering the refrigerant to the necessary temperature cannot be met and the coefficient of performance (COP), which is Coefficient of air conditioning capacity and compressor power consumption

[0009] In addition, since the refrigerant circulating through the air conditioning system is rapidly compressed at high temperature and high pressure by the compressor in the air conditioner tube, noise and vibration are generated in the air conditioner tube, thus making the overall noise of the vehicle , vibration and harshness (NVH) performance deterioration

Images