Abstract: A vapor chamber includes a first panel defining an evaporation region, a thermal insulation region and a condensation region, a second panel joined to the first panel to define an enclosed accommodation space therebetween, a capillary material disposed in the accommodation space, and a working fluid. The first panel has a plurality of first bumps disposed within the accommodation space and distributed in the evaporation region, the thermal insulation region and the condensation region and abutted against the capillary material. The capillary material has a hollow portion located in the thermal insulation region to expose a part of the first bumps. The second panel has a plurality of second bumps abutted against the first bumps in the hollow portion.

Abstract: A vapor chamber includes a first panel defining an evaporation region, a thermal insulation region and a condensation region, a second panel joined to the first panel to define an enclosed accommodation space therebetween, a capillary material disposed in the accommodation space, and a working fluid. The first panel has a plurality of first bumps disposed within the accommodation space and distributed in the evaporation region, the thermal insulation region and the condensation region and abutted against the capillary material. The capillary material has a hollow portion located in the thermal insulation region to expose a part of the first bumps. The second panel has a plurality of second bumps abutted against the first bumps in the hollow portion.

Abstract: A loop vapor chamber includes: a base board having therein a space; a lid for covering the base board and sealing the space to form therein an evaporation chamber, vapor channel, condensation channel and liquid channel, the vapor channel having an end in communication with the evaporation chamber and another end in connection with the condensation channel, the condensation channel connecting to the liquid channel, and the liquid channel connecting to the evaporation chamber; a wick disposed in the evaporation chamber without occupying the evaporation chamber fully such that an evaporation space is defined in the evaporation chamber, the evaporation space being in communication with the vapor channel, wherein a portion of the wick corresponds in position to one end of the liquid channel; a space partition element disposed in the evaporation chamber to separate the evaporation space and liquid channel; and a working fluid filling the evaporation chamber.

Abstract: A loop vapor chamber conducive to separation of liquid and gas includes a base, an upper lid, a wick structure and a working fluid. The base includes a first recess, a second recess, a first extension channel and a second extension channel. The first recess and the second recess are in communication with each other through the first extension channel and the second extension channel. The upper lid is coupled to the base. The first recess, the second recess, the first extension channel and the second extension channel together form a closed space. The wick structure is disposed in the closed space and thus corresponds in position to the first recess, the second recess and the first extension channel.

Abstract: A joint vapor chamber assembly with vapor chambers connected by an extension wick layer is provided. The vapor chambers each have therein a closed space being a vacuum and filled with a working liquid. The joint vapor chamber assembly includes: a base having a first recess, second recess, liquid flow channel and gaseous flow channel in communication with each other; an upper lid coupled to the base to jointly form the closed space, the closed space including the first and second recesses, liquid and gaseous flow channels; a wick structure disposed in the closed space and facing the first and second recesses; an extension wick layer filling the liquid flow channel partially to prevent any gas from entering the first and second recesses via the liquid flow channel. Two ends of the extension wick layer extend from the liquid flow channel to come into contact with the wick structure.

Abstract: A loop heat pipe partitioned into a vapor channel and a liquid channel includes an evaporation chamber, a loop tube, a coupling cover, and a heat-dissipating unit disposed outside the loop tube. The evaporation chamber has a casing. The casing has therein a wick, a working fluid and an evaporation space. The loop tube has a connecting end and an engaging end. The connecting end connects to the casing. The loop tube has therein at least one partition element for partitioning the loop tube into a vapor channel and a liquid channel. The coupling cover is engaged with the engaging end of the loop tube and spaced apart from the at least one partition element by a predetermined distance to thereby form a circulation zone whereby the at least one vapor channel and the liquid channel communicate.

Abstract: A loop heat transfer device has therein an enclosed space being vacuum and filled with a working fluid. The loop heat transfer device includes a base, a partition wall, an upper lid, and a capillarity structure. The base includes a first chamber, a second chamber and an extension groove. The extension groove extends from the first chamber to the second chamber. The partition wall connects to the base and partitions the extension groove into a capillarity channel and an airstream channel. The upper lid connects to the base and the partition wall. The enclosed space includes the first chamber, the second chamber and the extension groove. The capillarity structure is disposed in the first chamber, the second chamber and the capillarity channel.

Abstract: A loop heat pipe with different pipe-diameters includes: an evaporation chamber having a casing and a wick disposed therein, the wick not occupying the casing fully such that an evaporation space is formed therebetween; a condensation element externally provided with a heat-dissipating unit and internally having a circulation channel, the circulation channel having a vapor connection-end and a liquid connection-end having a smaller inner diameter than the vapor connection-end; a vapor delivery-pipe having an end connecting to the casing and communicating with the evaporation space and another end connecting to the vapor connection-end of the condensation element and communicating with the circulation channel; and a liquid delivery-pipe having an end connecting to the casing and communicating with the casing and another end connecting to the liquid connection-end of the condensation element and communicating with the circulation channel, the liquid delivery-pipe having a smaller inner diameter than the vapor d

Abstract: A loop heat pipe having a condensation segment partially filled with a wick, including: an evaporation chamber having a casing and a first wick disposed therein, the casing being not fully filled with the first wick such that a first space is formed therebetween; a condensation segment being a hollow-cored tube partially filled with the second wick and having a vapor connection end and a liquid connection end communicating with the vapor connection end, the tube having therein a second wick corresponding in position to the liquid connection end and a second space corresponding in position to the vapor connection end; a vapor delivery pipe having an end communicating with the first space and another end communicating with the second space; and a liquid delivery pipe filled with a third wick and having an end communicating with the casing and another end communicating with the condensation segment.

Abstract: A loop heat pipe with fluid slug pipes includes: an evaporation chamber having a casing and a wick disposed therein; a return line having two ends connected to the casing; and a working fluid filling the evaporation chamber. A condensation segment is defined as a predetermined length of a body of the return line. A vapor segment is defined as a portion of the return line, extending from the condensation segment to the vapor end. A liquid segment is defined as another portion of the return line, extending from the condensation segment to the liquid end. At least one partition element is disposed inside the liquid segment to thereby divide the liquid segment into at least two fluid slug pipes not in communication with each other but in communication with the condensation segment and the casing. The fluid slug pipes each have a smaller diameter than the return line.

Abstract: A flat heat pipe with composite wick material includes: a flat pipe; a pipe-wall wick structure disposed on an inner wall of the pipe and extending in an axial direction of the pipe, wherein, from a perspective of its cross section, the pipe has an upper inner wall and left and right arcuate inner walls, an opening facing downward, and a lower inner wall not being completely covered; a fiber bundle disposed at the opening formed at the pipe-wall wick structure; and a working fluid disposed in the pipe. One of two contact surfaces of the fiber bundle is coupled to the lower inner wall of the pipe by sintering. The other contact surface of the fiber bundle is in contact with the pipe-wall wick structure.

Abstract: A method of manufacturing an exhaust-pipe-free vapor chamber includes the steps of: preparing: placing two boards one above the other to form therebetween a receiving space, placing a wick in the receiving space, and sintering the wick to at least one of the boards, wherein the boards each have an extension plate extending outward from an end of the board, allowing the boards and extension plates to form a tunnel which an exhaust pipe is inserted into; water feeding and gas removing; sealing: clamping portions of the boards and extension plates by a sealing clamp, but not clamping the exhaust pipe, wherein the clamped portions correspond in position to the tunnel and are compressed such that a portion of the tunnel is compressed and sealed; cutting: cutting off an external, remaining portion not clamped by the sealing clamp; and welding: welding and sealing a gap not yet been brazed.

Abstract: A vapor chamber with an inner ridge forming passages, including: a first board having, defined thereon, a heating region, a thermally-insulating region and a condensing region; a second board coupled to the first board; a first wick disposed at the second board or the first board and extending from the heating region to the thermally-insulating region at the very least; and a working fluid. An inner ridge protrudes from the first board toward the second board and has bumps spaced apart by a predetermined distance. Some of the bumps are slender, flank predetermined routes, and are spaced apart to form passages, with the passages extending from the heating region to the condensing region via the thermally-insulating region. Ends of the bumps press against the first wick or the second board.

Abstract: A joint assembly of vapor chambers connects the vapor chambers to effectuate joint operation thereof. For example, two paired vapor chambers are connected therebetween by a capillary pipe and a gas pipe. The capillary pipe is filled with a third wick which connects with a first wick and a second wick in the two vapor chambers. The two vapor chambers are in spatial communication with each other because of the gas pipe. A working fluid in the two vapor chambers is transferred between the first, second and third wicks by capillarity. The gas-phase working fluid moves between the two vapor chambers via the gas pipe, thereby allowing the two vapor chambers to operate jointly.

Abstract: A joint assembly of vapor chambers connects the vapor chambers to effectuate joint operation thereof. For example, two paired vapor chambers are connected therebetween by a capillary pipe and a gas pipe. The capillary pipe is filled with a third wick which connects with a first wick and a second wick in the two vapor chambers. The two vapor chambers are in spatial communication with each other because of the gas pipe. A working fluid in the two vapor chambers is transferred between the first, second and third wicks by capillarity. The gas-phase working fluid moves between the two vapor chambers via the gas pipe, thereby allowing the two vapor chambers to operate jointly.

Abstract: A heat dissipation device includes: a heat spreader having a first plate and a second plate, wherein the plates are connected to form a receiving space therebetween; a first capillary material provided on the first plate, the second plate, or both; at least one heat pipe having a cavity in communication with the receiving space, wherein the heat pipe is connected to the heat spreader at one end and is outside the heat spreader and closed at the other end; a second capillary material provided on the inner wall of the heat pipe; at least one fiber bundle of an elongated shape, wherein the fiber bundle has a portion in the receiving space and in contact with the first capillary material and another portion extending into the cavity and in contact with the second capillary material; and a working fluid in the receiving space and the cavity.

Abstract: A heat spreader with a liquid-vapor separation structure includes a first panel, a second panel bonded with the first panel and defining therebetween an enclosed accommodation chamber, multiple spacer members arranged spaced apart from one another in the accommodation chamber and abutted between the first panel and the second panel and defining multiple vapor passages and liquid passages therebetween and dividing the accommodation chamber into a heat-absorbing zone and a condensing zone that are disposed in communication with each other through the vapor passages and the liquid passages, a first wick material partially disposed in the liquid passages and partially disposed in the heat-absorbing zone and the condensing zone, and a working fluid filled in the accommodation chamber.

Abstract: A heat pipe with fiber wick structure includes a tubular body that is divided into an evaporator section, an adiabatic section and a condenser section, a mesh wick structure bonded to the inner wall of the tubular body to occupy the overall area of the evaporator section, a flat elongated fiber wick structure partially surrounded by the mesh wick structure in the tubular body and extending along the longitudinal axis of the tubular body to occupy a part of the inside space of the tubular body, and a working fluid filled in the tubular body. The fiber wick structure has one or multiple contact surfaces partially disposed in contact with and sintered to the mesh wick structure and partially disposed outside the mesh wick structure and disposed in contact with and sintered to the inner wall of the tubular body.