Pump-free water-cooling system

• US 7,380,584 B2
• Filed: 12/10/2004
• Issued: 06/03/2008
• Est. Priority Date: 01/06/2004
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Yamada, Akira, Uehara, Nobuaki, Ippoushi, Shigetoshi, Ogushi, Tetsuro
• Primary Examiner(s): Tyler; Cheryl J.
• Assistant Examiner(s): ROSATI, BRANDON MICHAEL
• Application Number:
  US11/008,245
• Publication Number:
  US 20050155744A1
• Time in Patent Office: 1,271 Days
• Field of Search: 165/104.21, 165/104.22, 165/104.23, 165/104.24, 165/104.25, 165/104.26, 165/104.27, 165/104.28, 165/104.29, 165/104.33, 126/639
• US Class Current: 165/104.24
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A pump-free water-cooling system is provided wherein external power supply is not involved; heat can be transported in any direction; and high reliability and low thermal resistance are ensured.

The pump-free water-cooling system includes: a heat-exchange circulating solution container in which a heat-exchange circulating solution and vapor of the circulating solution are contained; a heat radiator provided on the outer wall of the container; a solution outlet for discharging from the container the heat-exchange circulating solution in the container; a gas-liquid two-phase fluid inlet for charging into the container gas-liquid two-phase fluid composed of the heat-exchange circulating solution at high temperature and vapor bubbles of the circulating solution; a first transportation route along which a sensible-heat-emitting heat exchanger is provided, the first transportation route linking with the solution outlet; a second transportation route along which heat exchange is carried out between heat-exchange circulating solution therein and the heat-exchange circulating solution in the container and the vapor of the heat-exchange circulating solution in the container; a third transportation route along which a heating heat exchanger is provided, the third transportation route linking with the gas-liquid two-phase fluid inlet; and a circulating-solution transporting route in which the first transportation route, the second transportation route, and the third transportation route are linked in that order.

Claims

1. A pump-free water-cooling system, comprising:

a heat-exchange circulating solution container in which heat-exchange circulating solution and vapor of the circulating solution are contained;

a heat radiator provided on an outer wall of the container;

a solution outlet for discharging from the container the heat-exchange circulating solution in the container;

a gas-liquid two-phase fluid inlet for charging into the container gas-liquid two-phase fluid composed of the heat-exchange circulating solution at high temperature and vapor bubbles of the circulating solution;

a first transportation route along which a sensible-heat-emitting heat exchanger is provided, the first transportation route linking with the solution outlet;

a second transportation route along which heat exchange is carried out between heat-exchange circulating solution therein and the heat-exchange circulating solution in the container, or between the heat-exchange circulating solution therein, and the heat-exchange circulating solution in the container and the vapor of the heat-exchange circulating solution in the container;

a third transportation route along which a heating heat exchanger is provided, the third transportation route linking with the gas-liquid two-phase fluid inlet; and

a circulating-solution transporting route in which the first transportation route is linked to the second transportation route and the second transportation route is linked to the third transportation route.

2. A pump-free water-cooling system as recited in claim 1, wherein an auxiliary heat-exchange circulating solution container that links with the heat-exchange circulating solution container is provided, and a heating device for controlling a temperature in the auxiliary container is provided in the auxiliary container.

3. A pump-free water-cooling system as recited in claim 1, wherein the heat-exchange circulating solution container is provided with a plurality of solution outlets and a plurality of gas-liquid two-phase fluid inlets, and the solution outlets are linked through a plurality of circulating-solution transporting routes with respective gas-liquid two-phase fluid inlets.

4. A pump-free water-cooling system as recited in claim 1, wherein at least one of the first transporting route, the second transporting route, and the third transporting route includes a plurality of transporting routes divided by means of a distributing vessel and a collecting vessel.

5. A pump-free water-cooling system as recited in claim 1, wherein the circulating-solution transporting route has a plurality of second transporting routes, and includes, between two of the plurality of second transporting routes, a fourth transporting route provided with a sensible-heat-emitting heat exchanger.

6. A pump-free water-cooling system, as recited in claim 1, further comprising:

one or more fifth transporting routes in which a heating heat exchanger and a sensible-heat-emitting heat exchanger are provided,

wherein each of the one or more fifth transporting routes is located between the second transporting route and the first transporting route.

7. A pump-free water-cooling system, as recited in claim 6, wherein the heating heat exchanger provided in the third transporting route is a heater that can be controlled from outside.

8. A pump-free water-cooling system, as recited in claim 1, wherein the third transporting route includes an auxiliary heater.

9. A pump-free water-cooling system as recited in claim 1, wherein

the heat-exchange circulating solution container is provided with a plurality of solution outlets;

the first transporting route links with the plurality of the solution outlets; and

respective linking portions of the first transporting route that link with the plurality of the solution outlets join, linking with the second transporting route.