A heat pipe operating noiselessly by preventing, or reducing the effects of, the mixing of working fluid at different temperatures includes a hollow tube, a capillary structure, a working fluid, and a bushing. The porous capillary structure able to carry the fluid is disposed on an inner wall of the tube. The bushing is hollow, and the bushing is disposed on a surface of the capillary structure away from the tube. The heat pipe is divided into evaporation, adiabatic, and condensation sections, the capillary structure being at all sections. The working fluid is disposed in the capillary structure of the evaporation section, the bushing is disposed on a side of the capillary structure of the adiabatic section.

A structure includes: a heat insulating layer; an evaporator provided on one surface side of the heat insulating layer; a condenser provided on the other surface side of the heat insulating layer; a vapor flow path for guiding refrigerant vapor generated as a result of evaporation at the evaporator to the condenser; and a liquid refrigerant flow path for guiding a liquid refrigerant generated as a result of condensation at the condenser to the evaporator, in which the evaporator has a wick layer for evaporating the refrigerant stored on a lower portion side with heat from one surface side of the evaporator while suctioning up the refrigerant by capillarity and holding the refrigerant, and the evaporator and the condenser are installed so as to overlap by ½ or more in the direction in which the wick layer suctions up the refrigerant.

The present disclosure provides a heat pipe capable of preventing deformation of even a thin container and having excellent heat transfer characteristics by preventing freezing of a working fluid even if the longitudinal direction of the container is set substantially parallel to the direction of gravity in cold regions. A heat pipe includes a container having a tubular shape with both ends sealed, a wick structure stored in the container, and a working fluid sealed in the container, wherein, in at least one of cross sections perpendicular to the longitudinal direction of the container, the wick structure is in contact with the inner surface of the container at two points but both side surfaces of the wick structure are not in contact with any inner surface of the container, and a sintered metal layer is formed on the container inner surface being not in contact with the wick structure.

A manufacturing method of thermal module includes steps of: providing at least one aluminum heat conduction component and at least one copper heat conduction component; disposing a copper embedding layer, by means of physical or chemical processing, a copper embedding layer being disposed on a processed section or processed face of the aluminum heat conduction component, which processed section or processed face is correspondingly assembled with the copper heat conduction component; and welding and connecting, the surface of the aluminum heat conduction component, on which the copper embedding layer is disposed, being securely welded and connected with the copper heat conduction component so as to securely connect the aluminum heat conduction component with the copper heat conduction component. By means of the copper embedding layer, the aluminum heat conduction component can be welded and connected with other heat conduction components made of heterogeneous materials and the same material.

Disclosed are systems for applying materials to components. The system comprises a tool operable for transferring a portion of a material from a supply of the material to a component. A first portion of the tool may be configured for cutting along a side or edge of the portion of the material. A second portion of the tool may be configured for tamping, pressing, or pushing against the portion of the material to cause uncut sides or edges of the portion of the material attached to the supply of the material to be torn, severed, detached, or separated from the supply of the material.

A heat exchanger includes a porous material in a cold side flow passage. The porous material is configured to distribute a liquid phase throughout the cold side flow passage through capillary action.

A manufacturing method of middle member structure includes steps of applying an external force to a plate body to shape the plate body and form multiple recessed/raised structures and perforating the plate body to form multiple perforations misaligned from the recessed/raised structures so as to achieve a plate body with recessed/raised structures. The middle member structure is applicable to a vapor chamber to enhance the vapor-liquid circulation effect and the support for the internal chamber.

A method for performance determination of a heat pipe with an arbitrary liquid flow area and prescribed geometric dimensions, an external and internal structure, a heat pipe material and a working fluid, heating and cooling surface areas, and condenser cooling conditions is provided to obtain operating and performance parameters, wherein the operating and performance parameters are temperature distribution within the heat pipe, a heat transferred via a phase change and a conduction, an axial variation of a radius of curvature of a liquid-vapor interface along the heat pipe, a vapor temperature and pressure of the working fluid, by simulating a flow and an energy transfer inside.

A heat pipe operating noiselessly by preventing, or reducing the effects of, the mixing of working fluid at different temperatures includes a hollow tube, a capillary structure, a working fluid, and a bushing. The porous capillary structure able to carry the fluid is disposed on an inner wall of the tube. The bushing is hollow, and the bushing is disposed on a surface of the capillary structure away from the tube. The heat pipe is divided into evaporation, adiabatic, and condensation sections, the capillary structure being at all sections. The working fluid is disposed in the capillary structure of the evaporation section, the bushing is disposed on a side of the capillary structure of the adiabatic section. The present disclosure further provides a device including the heat pipe.

A heat pipe including: a heat receiving chamber; a heat dissipation chamber; a tubular connecting pipe; and wicks. Each of the heat receiving chamber and the heat dissipation chamber has, when viewed from a first direction, a greater width in a second direction than a width of the connecting pipe in the second direction. The wicks are formed side by side at least in the second direction. The wicks are formed in a groove shape on inner wall surfaces of the heat receiving chamber, the heat dissipation chamber, and the connecting pipe. At least one of the wicks has a bent portion on the heat receiving chamber side, which is bent in the second direction in the heat receiving chamber and the heat dissipation chamber. The heat receiving chamber, the heat dissipation chamber, the connecting pipe. The wicks are integrally formed by laminating and shaping using a metal powder.