Heat exchange device featuring gas-liquid separation

1. A heat exchange device featuring gas-liquid separation, comprising:

an evaporator unit comprising a housing, an evaporation chamber provided in the housing, and a gas outlet provided at a top side of the evaporation chamber; and

a condenser unit comprising a central main guide tube, a plurality of condensation tubes connected to the central main guide tube, and a heat dissipation fin assembly provided on a periphery of each condensation tube, wherein the central main guide tube comprises a gaseous-phase confluence chamber and a liquid-phase confluence chamber, the gaseous-phase confluence chamber is provided in an upper portion of the central main guide tube and communicates with the gas outlet through a gaseous-phase connection tube, the liquid-phase confluence chamber is provided in a lower portion of the central main guide tube and communicates with the evaporation chamber through a liquid-phase connection tube, the condensation tubes are connected to two lateral sides of the central main guide tube in pairs, and each condensation tube comprises a first communicating section in communication with the gaseous-phase confluence chamber, a bent section bent downward from the first communicating section, and a second communicating section connecting the bent section to the liquid-phase confluence chamber.

2. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the heat dissipation fin assembly is composed of a plurality of recumbent square U-shaped fins that are sequentially connected in a head-to-tail manner, or is an integrated wavy fin assembly extruded through rollers or stamping.

3. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the heat dissipation fin assembly and the condensation tubes are made of aluminum and/or copper.

4. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the housing is provided with a heat dissipation cover, which covers a portion of the gaseous-phase connection tube and is made of aluminum or copper; and, the heat dissipation cover is composed of a plurality of recumbent square U-shaped fins that are sequentially connected in a head-to-tail manner, or is an integrated wavy fin assembly extruded through rollers or stamping.

5. The heat exchange device featuring gas-liquid separation of claim 1 , wherein a position at which the gaseous-phase connection tube is connected to the housing is higher than a position at which the liquid-phase connection tube is connected to the housing.

6. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the gaseous-phase connection tube has a larger tube diameter than the liquid-phase connection tube.

7. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the condensation tube is made by an aluminum extrusion means and has a flattened cross section.

8. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the condensation tube is provided therein with a plurality of supporting ribs.

9. The heat exchange device featuring gas-liquid separation of claim 4 , wherein a inner wall of the condensation tube and a surface of each supporting rib are respectively provided with a plurality of microstructures.

10. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the gaseous-phase confluence chamber and the liquid-phase confluence chamber are separately provided to separate a working path of a gaseous-phase working fluid from that of a liquid-phase working fluid, thereby eliminating an impedance the liquid-phase working fluid experiences when flowing back.

11. The heat exchange device featuring gas-liquid separation of claim 1 , wherein the evaporator unit and the condenser unit are separately provided and are connected by the gaseous-phase connection tube and the liquid-phase connection tube, the evaporator unit lies compliantly on an external electronic device, and the condenser unit is disposed adjacent to an external fan to receive a largest possible airflow to enhance heat dissipation efficiency.