Abstract: An exemplary base includes a heat absorber and clips attached to the heat absorber. The heat absorber includes a top surface and a bottom surface. A pair of receiving grooves is defined in opposite lateral sides of the heat absorber, respectively. Each receiving groove is located above a level of the bottom surface and below a level of the top surface. Each clip includes a positioning beam. The positioning beam is received in a corresponding one of the receiving grooves with a portion of the heat absorber adjacent to the positioning beam deformed and fixed in the positioning beam thereby fixing the positioning beam in the receiving groove. A heat dissipating module having the base is also provided.

Abstract: An electronic device includes an electronic component and a heat dissipating casing configured to dissipate heat from the electronic component. The casing includes top and bottom sides of the heat dissipating casing forming a sealed chamber, and a pore structure formed within the sealed chamber. The sealed chamber is configured to receive a working medium and the pore structure is configured to absorb at least a portion of the working medium, whereby the heat generated from the electronic component is dissipated by a phase change of the working medium.

Abstract: A method for manufacturing a heat pipe includes following steps: providing a tube; providing a rod; inserting the rod in the circular tube, a receiving portion is formed between an inner face of the tube and the upper portion of the rod; providing an amount of metal powder and filling the metal powder into the receiving portion; sintering the metal powder at a high temperature to form a first wick structure adhered on the inner face of the tube and then drawing the rod out of the tube; injecting a working medium into the tube and sealing the tube to form the heat pipe.

Abstract: An exemplary cooling fan includes a base, a central tube formed at the base, a stator, and a rotor being rotatable relative to the stator. The central tube is made of polyoxymethylene. The central tube includes a bottom plate mounted on the base and a peripheral sidewall extending upwardly from a peripheral edges of the bottom plate. The bottom plate and the sidewall cooperatively define a blind hole therebetween. The stator is mounted around the sidewall of the central tube. The rotor includes a hub and a shaft extending from the hub. The shaft includes a free end received in the blind hole and directly abutting the bottom plate.

Abstract: An exemplary flat heat pipe includes a hollow, flattened casing and a first wick structure and a second wick structure received in the casing. The casing includes a top plate and a bottom plate opposite to the top plate. The first wick structure is formed by weaving wires, and the second wick structure is made of sintered metal powder. The first and second wick structures are disposed at inner sides of the bottom and top plates of the casing, respectively. The first and second wick structures contact each other. The casing defines two vapor channels at opposite lateral sides of the combined first and second wick structures, respectively.

Abstract: An exemplary base includes a heat absorber and clips attached to the heat absorber. The heat absorber includes a top surface and a bottom surface. A pair of receiving grooves is defined in opposite lateral sides of the heat absorber, respectively. Each receiving groove is located above a level of the bottom surface and below a level of the top surface. Each clip includes a positioning beam. The positioning beam is received in a corresponding one of the receiving grooves with a portion of the heat absorber adjacent to the positioning beam deformed and fixed in the positioning beam thereby fixing the positioning beam in the receiving groove. A heat dissipating module having the base is also provided.

Abstract: An exemplary heat dissipation device includes a heat pipe and a fin unit. The heat pipe includes an evaporation section and a condensing section formed at opposite ends thereof, respectively. The fin unit includes plural stacked parallel fins. Each of the fins defines a through hole therein for receiving the condensing section of the heat pipe. A flange extends from a periphery of the through hole. The flange defines two slits to divide the flange into two separate portions. The slits communicate with the through hole. A compressible structure is formed in each fin at opposite sides of the through hole. The compressible structure is aligned with the slits such that when the fin is compressed along a direction transverse to the alignment, the compressible structure is compressed and the separate portions of the flange move toward each other and closely contact the condensing section of the heat pipe.

Abstract: An exemplary heat sink assembly includes a heat sink, a connecting member, and a mounting member. A mounting hole and a receiving hole are defined in the heat sink and communicating with each other. The connecting member is adapted for fixing the heat sink. The connecting member includes a connecting section and an extending section extending from the connecting section. The mounting member fixes the connecting member to the heat sink. The connecting section is received in the receiving hole of the heat sink, the extending section is protruding from the heat sink, and the mounting member extends through the mounting hole and engaging with the connecting section to fix the connecting member to the heat sink.

Abstract: A heat dissipation device includes a conductive plate and a fastener. The fastener includes a fastening element and an elastic element coiled around the fastening element. The fastening element includes a pole portion and a head portion formed at one end of the pole portion. The conductive plate defines a supporting portion through the conductive plate. The supporting portion defines a hole, an upper groove and a lower groove communicating with one another. The upper groove and the lower groove are coaxial with each other. A flange protrudes from a circumference of the pole portion. The pole portion enters the upper groove. The flange abuts a bottom of the conductive plate and is received in the lower groove. The elastic element elastically abuts the top of the conductive plate.

Abstract: A heat dissipation device includes a heat pipe and a fin set. The fin set includes a plurality of fins. Each of the fins includes a body, a first flange vertically extending from a top side of the body, and a second flange vertically extending from a bottom side of the body. The first flange has a first edge abutting a front neighboring fin and a second edge spaced to the first edge to define a slit. The first flange forms an extending portion extending from the second edge to define a gap between the extending portion and the body of the front neighboring fin. Each of the extending portions is soldered to the body of the front neighboring fin by solder filled in the gap between the extending portion and the body of the front neighboring fin from the slit.

Abstract: A heat dissipation device includes a base and a fastener. The fastener includes a clasping portion, an elastic member placed and a first gasket. The clasping portion includes a fixing part, an operating part, and a connecting part connected to the fixing part and the operating part. The connecting part defines a slip groove. The first gasket interferingly fits the slip groove of the clasping portion. The elastic member is placed around the connecting part of the clasping portion and is arranged between the operation part and the first gasket. The first gasket abuts the base after the fixing part extending through the base.

Abstract: A heat dissipation device includes a base and a fastener. The fastener includes a neck portion, a head portion formed at one end of the neck portion, and an engaging portion formed at another opposite end of the neck portion. The base defines a receiving portion through the base. The receiving portion includes an inserting hole and a mounting hole communicating with the inserting hole. A flange extends upwardly from the base toward the mounting hole. The engaging portion extends through the inserting hole from a top of the base to make the neck portion enter the inserting hole. The neck portion is then crushed into the mounting hole from the inserting hole. A top face of the head portion abuts the flange, a bottom face of the head portion abuts the base.

Abstract: A heat dissipation device includes a base and a fastener. The fastener includes a neck portion, a head portion formed at one end of the neck portion, and an engaging portion formed at another opposite end of the neck portion. The base defines a receiving portion through the base. The receiving portion includes an inserting hole and a mounting hole communicating with the inserting hole. The engaging portion extends through the inserting hole from a top of the base to make the neck portion enter the inserting hole. The neck portion is then crushed into the mounting hole from the inserting hole. The engaging portion abuts the bottom side of the base at a periphery of the mounting hole. The head portion abuts the top side of the base at the periphery of the mounting hole.

Abstract: An exemplary flat heat pipe includes a hollow tube and a wick structure lining an inner surface of the tube. The tube includes an evaporator section, an adiabatic section and a condenser section defined in turn along a longitudinal direction thereof. The wick structure includes a first wick portion located in the evaporator section, a second wick portion located in the condenser section, and a third wick portion extending longitudinally from the evaporator section, through the adiabatic section to the condenser section and communicating with the first wick portion and the second wick portion. A capillary force of the first wick portion is larger than that of the third wick portion, and a pore density of the first wick portion is less than that of the third wick portion.

Abstract: A method for manufacturing a heat pipe includes following steps: providing a tube; providing a rod; inserting the rod in the circular tube, a receiving portion is formed between an inner face of the tube and the upper portion of the rod; providing an amount of metal powder and filling the metal powder into the receiving portion; sintering the metal powder at a high temperature to form a first wick structure adhered on the inner face of the tube and then drawing the rod out of the tube; injecting a working medium into the tube and sealing the tube to form the heat pipe.

Abstract: A flat heat spreader includes a hollow casing defining a vapor chamber therein, a working liquid contained in the vapor chamber, a first wick structure formed on an inner face of the casing, and a second wick structure formed on the inner face of the casing. The inner face of the casing includes a bottom face and a top face opposite to the bottom face. A porosity of the first wick structure is less than that of the second wick structure. A method for manufacturing the flat heat spreader is also provided.

Abstract: An exemplary heat sink assembly includes a heat sink, a connecting member, and a mounting member. A mounting hole and a receiving hole are defined in the heat sink and communicating with each other. The connecting member is adapted for fixing the heat sink. The connecting member includes a connecting section and an extending section extending from the connecting section. The mounting member fixes the connecting member to the heat sink. The connecting section is received in the receiving hole of the heat sink, the extending section is protruding from the heat sink, and the mounting member extends through the mounting hole and engaging with the connecting section to fix the connecting member to the heat sink.

Abstract: An exemplary heat pipe includes a hollow tube, a wick structure configured on an inner surface of the tube and a working medium formed in the tube. Two ends of the tube are sealed and the tube defining a chamber therein. The tube comprises an evaporating section and a condensing section, and the evaporating section is isolated from the condensing section. The wick structure extends from the evaporating section to the condensing section along the inner surface of the tube to form a working medium channel. A pair of through holes is defined in each of the evaporating section and the condensing section of the tube. A pair of metal pipes communicate the through holes of the evaporating section with those of the condensing section to form a pair of vapor channels. A method for manufacturing the heat pipe is also provided.

Abstract: An exemplary base includes a heat absorber and clips attached to the heat absorber. The heat absorber includes a top surface and a bottom surface. A pair of receiving grooves is defined in opposite lateral sides of the heat absorber, respectively. Each receiving groove is located above a level of the bottom surface and below a level of the top surface. Each clip includes a positioning beam. The positioning beam is received in a corresponding one of the receiving grooves with a portion of the heat absorber adjacent to the positioning beam deformed and fixed in the positioning beam thereby fixing the positioning beam in the receiving groove. A heat dissipating module having the base is also provided.

Abstract: An exemplary cooling fan includes a base, a central tube formed at the base, a stator, and a rotor being rotatable relative to the stator. The central tube is made of polyoxymethylene. The central tube includes a bottom plate mounted on the base and a peripheral sidewall extending upwardly from a peripheral edges of the bottom plate. The bottom plate and the sidewall cooperatively define a blind hole therebetween. The stator is mounted around the sidewall of the central tube. The rotor includes a hub and a shaft extending from the hub. The shaft includes a free end received in the blind hole and directly abutting the bottom plate.