摘要:
A loop-type heat exchange device (10) includes an evaporator (20), a vapor conduit (30), a condenser (50) and a liquid conduit (70). The evaporator contains therein a working fluid. The working fluid turns into vapor in the evaporator upon receiving heat from a heat-generating component. The condenser includes a housing member (52), a plurality of tube members (53) being in fluid communication with the housing member, and a fin member (54) maintained in thermal contact with the tube members. The vapor conduit and the liquid conduit are each connected between the evaporator and the condenser. The vapor conduit conveys the vapor generated in the evaporator to the tube members of the condenser. The vapor turns into condensate in the tube members upon releasing the heat to the fin member. The condensate is conveyed back to the evaporator by the liquid conduit.
摘要:
A loop-type heat exchange device (10) includes an evaporator (20), a vapor conduit (30), a condenser (50) and a liquid conduit (70). The evaporator contains therein a working fluid. The working fluid turns into vapor in the evaporator upon receiving heat from a heat-generating component. The condenser includes a housing member (52), a plurality of tube members (53) being in fluid communication with the housing member, and a fin member (54) maintained in thermal contact with the tube members. The vapor conduit and the liquid conduit are each connected between the evaporator and the condenser. The vapor conduit conveys the vapor generated in the evaporator to the tube members of the condenser. The vapor turns into condensate in the tube members upon releasing the heat to the fin member. The condensate is conveyed back to the evaporator by the liquid conduit.
摘要:
A heat pipe and a method for producing the heat pipe are disclosed. The heat pipe includes a hollow metal casing and a honeycombed wick structure arranged at an inner surface of the hollow metal casing. The wick structure includes a plurality of slices stacked together. Each of the slices defines a plurality of pores therein to form a plurality of micro-channels in the wick structure, whereby porosity of the wick structure can be accurately controlled.
摘要:
A group of powders (40) for making a wick structure of a heat pipe includes main powders (50) and supplemental powders (60). The melting point of the supplemental powder is lower than that of the main powder. During a sintering process, the powders are filled in a casing of the heat pipe and have a eutectic reaction between the main powders and the supplemental powders to form the wick structure. The temperature for the eutectic reaction is lower than the melting temperature of the supplemental powders.
摘要:
A powder feeding apparatus of manufacturing a heat pipe includes a vibration tray having a supporting board and a plurality of pipes positioned in the supporting board of the tray. A mandrel is coaxially inserted in each of the pipes. A feeder is located corresponding to an end of each pipe for feeding powder into the pipe. A vibration source drive the tray to vibrate along a direction perpendicular to an axial direction of each of the pipes when feeding the powder into the pipes from the feeders, whereby the pipes vibrate with substantially the same amplitude in the vibration direction.
摘要:
A performance testing apparatus for a heat pipe includes an immovable portion having a cooling structure defined therein for cooling the heat pipe requiring test. A movable portion is capable of moving relative to the immovable portion and has a cooling structure defined therein for cooling the heat pipe. A receiving structure is located between the immovable portion and the movable portion for receiving the heat pipe therein. A positioning structure extends from at least one of the immovable portion and the movable portion for avoiding the movable portion from deviating from the immovable portion during movement of the movable portion relative the immovable portion to ensure the receiving structure being capable of precisely receiving the heat pipe. At least a temperature sensor is attached to at least one of the immovable portion and the movable portion for detecting temperature of the heat pipe.
摘要:
A performance testing apparatus for a heat pipe includes an immovable portion having a cooling structure defined therein for cooling a heat pipe needing to be tested. A movable portion is capable of moving relative to the immovable portion. A receiving structure is defined between the immovable portion and the movable portion for receiving the heat pipe therein. At least a temperature sensor is attached to at least one of the immovable portion and the movable portion. The least a temperature sensor has a detecting section exposed in the receiving structure for thermally contacting the heat pipe in the receiving structure to detect a temperature of the heat pipe.
摘要:
A method for sealing a heat pipe, includes the steps of: providing a metallic pipe with an end sealed and an opposite open portion; pressing the open portion of the pipe to form a two layer portion by using two pairs of pressing molds; welding an end part of the two layer portion to form a sealing structure, during which at least one pair of pressing molds continues pressing the two layer portion; and moving the at least one pair of pressing molds away from the sealing structure.
摘要:
A heat pipe includes a casing and a sintered powder wick arranged at an inner surface of the casing. The sintered powder wick is made of spherical metal powder (300), the spherical metal powder having an apparent density ranging from 3.3 g/cm3 to 4.8 g/cm3 to reduce micro pores of the sintered powder wick and improve ability of heat transfer of the heat pipe.
摘要翻译:热管包括壳体和布置在壳体的内表面处的烧结的粉末芯。 烧结的粉末芯由球形金属粉末(300)制成,该球形金属粉末的表观密度范围为3.3g / cm 3至4.8g / cm 3,至 减少烧结粉末芯的微孔,提高热管的传热能力。
摘要:
A method of manufacturing a heat pipe, including the steps of: providing a hollow body with an open end and an opposite close end; filling a predetermined quantity of working fluid into the hollow body through the open end thereof after an interior of the hollow body having been evacuated to a predetermined vacuum degree; and sealing the open end of the hollow body.