| 摘要 |
PURPOSE: A heat exchanger is provided to simplify structure thereof, allow easy manufacture, improve pressure resistance thereof, and improve heat exchange between a gas cooler and an evaporator. CONSTITUTION: A heat exchanger comprises a hollow tube(10) having an inlet(11) and an outlet(12) for low pressure refrigerant formed thereon; a bunch tube(20) built in the hollow tube to allow high pressure refrigerant to flow therein; a first end plate(30) and a second end plate(40) sealing both sides of the hollow tube, and having connecting holes(31,41) formed thereon to be connected with the bunch tube; and a first end cap(50) and a second end cap(60) installed to outsides of the first end plate and the second end plate, respectively, one of which has an inflow hole(51) formed thereon to allow high pressure refrigerant to be introduced therethrough, and the other of which has an outflow hole(61) formed thereon to allow high pressure refrigerant to be discharged therethrough. The bunch tube comprises a central tube(21); and a plurality of circumferential tubes(22) radially connected with the central tube by bridges(23), and separated from each other.
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