Abstract: An electronic device capable of preventing air from entering a pump for circulating a cooling medium is provided in a small-sized electronic computer provided with a liquid cooling system, which has a liquid cooling construction for circulating a cooling liquid with the use of a power source and for cooling a high temperature part of with the cooling liquid. The electronic device of the invention comprises a gas entering preventing mechanism provided in a part of a circulating path, through which the cooling liquid circulates, to prevent air from entering the power source.

Abstract: In a liquid cooling system, comprising: a heat-receiving jacket for receiving heat from a heat-generation body therein; a heat-radiator for radiating the heat therefrom, which is received within the heat-receiving jacket; and a tank for accumulating refrigerant therein, which is connected with the heat-receiving jacket and the heat-radiator through flow passages, thereby enclosing a refrigerant within the heat-receiving jacket, the heat-radiator and the tank, including the flow passages provided therebetween, and further comprising: a liquid transfer means for generating a circulation flow of the refrigerant enclosed therein, wherein the tank 14 is built up on one side surface of a substrate 15 having superior heat-conductivity and heat-resistance, defined between a flexible film or sheet 16 or 23 having superior heat-conductivity and heat-resistance, and the heat-radiator having a heat-radiation flow passage 9 on the other side surface thereof, defined between the flexible film or sheet 16 or 23 having super

Abstract: In a cooling system of liquid type, dissolving a problem upon starting when applying a centrifugal pump therein, and being freely applicable into various kinds of electronic apparatuses, easily, for cooling a CPU in need of cooling thereof, which is mounted within a housing 100, the system comprises: a cooling jacket 50, a radiator 60 and a circulation pump, wherein the circulation pump is built up with a centrifugal pump, in which a rotor 730 having a plural number of blades formed in a centrifugal manner, a pump chamber 741 receiving the rotor in an inside thereof, and a field coil 712 of an electric motor for driving the rotor rotationally are formed into one body, and the pump chamber is disposed to located below the electric motor, thereby achieving the structure so that a liquid coolant fills up the pump chamber when stopping, in spite of the disposition of the circulation pump, thereby dissolving the problem of idling when starting.

Abstract: An electronic apparatus includes a case mounting a semiconductor element therein, a heat-receiving member thermally connected with the semiconductor element, a heat-radiation member disposed on an inner side surface of the case, and a liquid driver which drives a liquid coolant between the heat-radiation member and the heat-receiving member. The apparatus further includes a tank accumulating the liquid coolant therein and having at least a predetermined volume of the coolant to delimit a coolant surface within the tank. The tank, the heat-radiation member and the heat-receiving member are connected with tubes, and a suction end portion of a suction pipe connected into the tank is located at a position which is always below the coolant surface irrespective of change of position of the tank.

Abstract: For providing an electronic apparatus, having a cooling system therein, for enabling cooling operation of a CPU 200, which is mounted within a housing 100 of the apparatus and needs cooling thereof, the cooling system for cooling the CPU has a cooling jacket 50, a radiator 60, and a circulation pump 70, wherein conduits for conducting the liquid coolant into the cooling jacket are made from a metal-made tube, and the tubes are formed into spiral-like in the configuration, or bellows are formed on the way thereof, to be freely disposable within the housing, thereby causing no obstacle in the operations when assembling the apparatus and/or making maintenance thereon.

Abstract: In an electronic apparatus having a liquid cooling system, and enabling to obtain the optical cooling characteristic or capacitor with an aid of a radiator, which can be disposed or located fitting to a narrow space within a housing thereof, wherein a CPU 200 in deed of cooling thereof is installed within the housing 100, and the liquid cooling system for cooling the CPU comprises a cooling jacket 50 and a radiator therein, and wherein the radiator has a pair of headers 62 and 62, being constructed with disposing a large number of metal thin tubes 61, 61 . . . therebetween, aligning in parallel to each other, and can be change in an outer configuration thereof, easily and freely, and therefore it can be positioned even in the narrow space. Further, a cooling fan 64 or 66 for cooling the radiator 60 compulsively may be disposed therein, and in that case; it is also possible to maintain a position for setting up a motor 65 or 67 for rotationally driving the fan, including therein.

Abstract: For providing an electronic apparatus, having a cooling system therein, for enabling cooling operation of a CPU 200, which is mounted within a housing 100 of the apparatus and needs cooling thereof, the cooling system for cooling the CPU has a cooling jacket 50, a radiator 60, and a circulation pump 70, wherein the cooling jacket comprises a base-plate portion 51, being made of a material superior in heat transfer, such as, copper or the like, and formed with a flow inlet 54 and a flow outlet 55 for the liquid coolant, as well as, a flow passage formed in “U” or “I” shape within an inside thereof, and a cover portion 52, and in a portion of the flow passage of the “U” or “I” shape is disposed a coolant division portion 56 or/and 57, being made up by combining a plural number of pieces of fine tubes in a bundle, each of which is also made of a material superior in the heat transfer, such as copper or the like, through brazing.

Abstract: A liquid cooling system which is utilizable in a personal computer includes a pump for supplying a cooling liquid; a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body, a heat radiation pipe for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a passage for circulating the cooling liquid passing through the heat radiation pipe into the pump. The heat radiation pipe is made of material having a corrosion resistance that is higher than that of the heat receiving jacket.

Abstract: A liquid cooling system, comprises: heat-receiving jacket 7, thermally connected with a heat-generation element, a pump attached onto a radiator 1a, and a tank portion 2 on the radiator 1a, wherein a coolant liquid is circulated between the heat-receiving jacket 7 and the radiator 1a by means of the pump 8, thereby obtaining the liquid cooling system for an electronic apparatus, being suitable for small-sizing and a thin-type, while maintaining high reliability thereof.

Abstract: An electronic apparatus includes a case mounting a semiconductor element within an inside thereof, a heat-receiving member thermally connected with the semiconductor element, a heat-radiation member disposed on an inner side surface of the casing, and a liquid driver for driving a liquid coolant between the heat-radiation member and the heat-receiving member. The apparatus further includes a tank accumulating the liquid coolant therein with at least a predetermined volume of the coolant to delimit a coolant surface within the tank, wherein the tank, the heat-radiation member and the heat-receiving member are connected with tubes, and a suction end portion of a suction pipe connected into the tank is located at a position which is always below the coolant surface irrespective of change of position of the tank.

Abstract: In a liquid cooling system of low costs and being installable with high density into a server having a several kinds of predetermined heights of housings, each of devices building up the liquid cooling system is set to be within about 44 mm, being the standard height of a lack when installing into a cabinet for the server lack of lack-mount method, in particular, about from 40 mm to 36 mm, and this is combined with, thereby building up a liquid cooling system of low costs and enabling high density installation, for an electronic apparatus of lack-mount method having different heights.

Abstract: A cooling device for an electronic apparatus includes a heat generating element attached within a housing, a heat receiving jacket connectable with the heat generating element, a heat exchanger for exchanging heat between the heat receiving jacket and outside of the electronic apparatus and a liquid driver which supplies a cooling liquid to the heat receiving jacket. A part of pipework connected between the heat receiving jacket, the heat exchanger, and the liquid driver is made of a flexible tube of resin, and an ion exchanger is provided in a portion of the pipework. The cooling liquid has a corrosion inhibitor therein.

Abstract: A water-cooling device for cooling a heat-generating element within an electronic apparatus. The water-cooling device includes a water-cooling jacket which is thermally connectable with the heat-generating element, a heat-radiation pipe, a tank, and a liquid driver which forms a circulation flow passage through which a cooling liquid flows. At least one of the water-cooling jacket, the heat-radiation pipe, the tank and the liquid driver is attached on a plate, and the water-cooling device is detachable with respect to the heat-generating element by the plate.

Abstract: A liquid cooling system includes a pump for supplying a cooling liquid including water, a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body, a heat radiation portion for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a member for circulating the cooling liquid passing through the heat radiation portion into the pump. Different parts of the liquid cooling system are provided with different corrosion resistance against the cooling liquid.

Abstract: An electronic module which is detachably mounted on electronic equipment. The electronic module includes a board having a heat generator mounted on a surface thereof, and a cooling jacket which is integrally attached to the electronic module. The cooling jacket is thermally coupled to the heat generator and has a passage of a cooling fluid therewithin.

Abstract: A liquid cooling system for use in an electronic apparatus, being super small-sized and thin in the shape and being suitable for cooling a heat-generation part, such as, a semiconductor element having large amount of heat generation, for example, with maintaining the corrosion resistance thereof for a long time period, comprises: a pump for supplying a cooling liquid; a heat-receiving jacket, being supplied with the cooling liquid, for receiving heat from an electronic parts; a radiator, being supplied with the cooling liquid passing through the heat-receiving jacket, for radiation heat; and flow passages for circulating the cooling liquid in a route passing through the radiator back to said pump, wherein an ion exchange bag, having an ion exchange resin and a bag enclosing it therein, is disposed in a part of the constituent parts of the liquid cooling system, and/or the ion exchange bag is exchangeable.

Abstract: In the structure of an electronic apparatus, in which cooling of an heat-generating element is achieved through circulation of a liquid, in particular, for providing the structure of being high in cooling performance and reliability, wherein a heat-radiation pipe 9 is connected to a heat-radiation plate 10 disposed in a rear surface of a display 2, while thermally connecting a water-cooling jacket 8 with the heat-generating element 7, thereby circulating a coolant liquid between the water-cooling jacket 8 and the heat-radiation pipe 9 by means of a liquid driving device 11. The water-cooling jacket 8 can be formed in one body of a jacket base and a flow passage therein through the die-cast forming thereof, or can be constructed in one body with the water-cooling jacket and the flow passage of piping, through connection between the jacket base and the metal pipe.

Abstract: A liquid cooling system having a circulator for circulating a cooling liquid therethrough including an input portion for receiving the cooling liquid and a separate output portion for supplying the cooling liquid. A heat receiving jacket supplied with the cooling liquid from the circulator and positioned to received heat generated from a heat generation body, a heat radiation portion for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a member for circulating the cooling liquid passing through the heat radiation portion into the circulation means so that the cooling liquid circulates within a closed flow passage. An accumulating portion is further formed within a portion of the closed flow passage for accumulating the cooling liquid therein.

Abstract: A liquid cooling system includes a pump for supplying a cooling liquid including water, a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body, a heat radiation portion for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a member for circulating the cooling liquid passing through the heat radiation portion into the pump. Different parts of the liquid cooling system are provided with different corrosion resistance against the cooling liquid.

Abstract: An electronic apparatus includes a case mounting a semiconductor element within an inside thereof, a heat-receiving member thermally connected with the semiconductor element, a heat-radiation member disposed on an inner side surface of the casing, and a liquid driver for driving a liquid coolant between the heat-radiation member and the heat-receiving member. The apparatus further includes a tank accumulating the liquid coolant therein with at least a predetermined volume of the coolant to delimit a coolant surface within the tank, wherein the tank, the heat-radiation member and the heat-receiving member are connected with tubes, and a suction end portion of a suction pipe connected into the tank is located at a position which is always below the coolant surface irrespective of change of position of the tank.