Abstract: A heat dissipating system includes: a heat-absorbing unit having at least one cavity body adapted to contact a heat source, and a working fluid received in the cavity body; a condenser to condense the working fluid; and a tubing unit connected fluidly to the condenser and the heat-absorbing unit. The working fluid flows through the tubing unit to circulate from the condenser to the heat-absorbing unit by gravity and from the heat-absorbing unit to the condenser by natural convection. The tubing unit forms a closed circulating loop with the heat-absorbing unit and the condenser.

Abstract: A thermoelectric device includes: a first insulator substrate; a plurality of first pads of copper foil attached to the first insulator substrate; a second insulator substrate; a plurality of second pads of copper foil attached to the second insulator substrate; and a plurality of alternately disposed p-type and n-type semiconductor elements disposed between the first and second insulator substrates. Each of the p-type and n-type semiconductor elements has two opposite ends that are respectively bonded to a respective one of the first pads of copper foil and a respective one of the second pads of copper foil through a copper brazing material.

Abstract: An air cooling/heating device includes: a housing unit having first and second compartments, formed with a first opening and a first mounting hole in spatial communication with the first compartment, and further formed with a second opening unit and a second mounting hole in spatial communication with the second compartment; a thermal energy storing unit and a pipe disposed in the first compartment, and adapted to contain antifreeze liquid; a pump connected in series to the pipe, and operable to deliver the antifreeze liquid between the thermal energy storing unit and the pipe; a thermoelectric semiconductor device disposed in the second compartment, and in thermal contact with the thermal energy storing unit; and a turbulence unit including first and second fans that are mounted in the first and second mounting holes in the housing body, respectively.

Abstract: A heat collecting device includes: a first vacuum device which includes a first housing and which defines a first vacuum chamber; a second vacuum device which includes a second housing that contains the first vacuum device and which cooperates with the first vacuum device to define a second vacuum chamber therebetween; a metal plate mounted within the first vacuum device and having a plate body and an extension portion extending from the plate body to project outwardly of the first and second vacuum devices, the metal plate being capable of absorbing heat energy from an external heat source through the first and second vacuum devices; an insulating layer enclosing the extension portion; and a thermoelectric semiconductor device attached to the extension portion of the metal plate, extending through the insulating layer, and disposed outside the second vacuum device for conducting the heat energy absorbed by the metal plate.

Abstract: In a heat conducting assembly for a water heater and a method for making the heat conducting assembly, there is provided a heat-conductive housing which has inner wall surfaces that cooperate to confine a sealed chamber. A heat-conductive unit is disposed in the sealed chamber. Heat-conductive particles are disposed in the sealed chamber, and are caused to accumulate on the inner wall surfaces of the heat-conductive housing and outer wall surfaces of the heat-conductive unit for heating water in the heat-conductive unit.

Abstract: An apparatus for thermoelectrically generating cool/warm air includes a heat collecting device, a thermoelectric generator device connected to the heat collecting device and capable of converting heat energy to electric energy, a thermoelectric cooling unit powered by electricity outputted from the thermoelectric generator device, a water storage unit connected to one side of the thermoelectric cooling unit, a temperature regulating unit, and a control unit. The temperature regulating unit includes a fan and a honeycomb type water screen connected to the water storage unit. When the control unit effects a rise or drop in temperature of the side of the thermoelectric cooling unit so that water in the water storage unit becomes hot or cold, by distributing the hot or cold water across the water screen and by operating the fan to generate an air current, a supply of warm or cool air can be quickly obtained.

Abstract: In a heat conducting assembly for a water heater and a method for making the heat conducting assembly, there is provided a heat-conductive housing which has inner wall surfaces that cooperate to confine a sealed chamber. A heat-conductive unit is disposed in the sealed chamber. Heat-conductive particles are disposed in the sealed chamber, and are caused to accumulate on the inner wall surfaces of the heat-conductive housing and outer wall surfaces of the heat-conductive unit for heating water in the heat-conductive unit.

Abstract: A wheel frame assembly includes a hub, a rim surrounding the hub, and a plurality of spokes. Each of the spokes extends between the hub and the rim, and has at least one bent section that is compressible and deformable elastically. Therefore, sufficient elastic deformability and shock absorbability can be provided by the wheel frame assembly.

Abstract: An anion generating device includes an outer housing formed with air inlet and outlets as well as a heat exchanging space, a fan unit disposed in the heat exchanging space, an anion generator operable so as to generate anions near a discharge electrode unit thereof disposed between the air outlet of the outer housing and an air outlet of the fan unit, and a power control unit disposed in a receiving space in the outer housing for supplying electrical power to each of the fan unit and the anion generator by means of electrical energy converted from solar power by a solar power collecting plate mounted on a heat conductive top wall of the outer housing. The anions are impelled by air expelled by the fan unit to move outwardly of the outer housing via the air outlet of the outer housing.

Abstract: A negative ion generator includes: a flat dielectric layer having a planar surface; a plurality of conductive lines that are attached to the planar surface of the dielectric layer, and that define a plurality of ion-discharging points, respectively; and a high voltage generating circuit coupled to the conductive lines for actuating emission of electrons from the ion-discharging points of the conductive lines.

Abstract: A vapor-liquid separating type heat pipe device includes a heat sink member mountable on a heat source, tubular outer and inner bodies, a heat transfer fluid, a top vapor passage, and a bottom liquid passage. The outer body has an outer peripheral wall defining an inner chamber. The inner body is disposed in the inner chamber, and has an inner peripheral wall defining thereinside an evaporating space and cooperating with the outer peripheral wall to define a condensing space therebetween. The fluid is introduced into the inner chamber. The vapor passage is provided between and is in fluid communication with the evaporating and condensing spaces. The liquid passage is provided between and is in fluid communication with the condensing space and the heat sink member. The vapor and liquid passages are located proximate to the top and bottom ends of the inner and outer bodies, respectively.

Abstract: A heat pipe includes a hollow body having a fluid filling end which is covered with an elastic sealing member. The sealing member is pierced with a needle by extending the needle through the sealing member and into the hollow body. Air is drawn out from within the hollow body through the needle and a heat transfer fluid is introduced into the hollow body through the needle. The sealing member provides a passage for the needle when the sealing member is pierced and contracts to seal the passage after the needle is removed from the sealing member.

Abstract: A heat-transfer device includes a hollow heat-transfer member made of a thermally conductive material and confining a vacuum sealed chamber therein. The heat-transfer member includes a base portion that is adapted to be placed in thermal communication with a heat source. The base portion has an outer wall surface, an inner wall surface that is opposite to the outer wall surface and that confronts the vacuum sealed chamber, and at least one coolant groove that extends from the inner wall surface toward the outer wall surface and that is in fluid communication with the vacuum sealed chamber. An amount of liquid coolant is contained in the vacuum sealed chamber and is collected in the coolant groove.

Abstract: A heat dissipating device includes a tubular body and a heat transfer fluid. The tubular body has opposite top and bottom ends, a peripheral wall, a main chamber defined by the top and bottom ends and the peripheral wall, at least one hollow extension part extending outwardly from the peripheral wall, and a plurality of fins extending outwardly from the peripheral wall and the extension part. The hollow extension part has an extension chamber that is in fluid communication with the main chamber, and is elongated in a radial direction and narrow in a direction transverse to the radial direction. The heat transfer fluid is contained in the main chamber and the extension chamber.

Abstract: A heat pipe includes a hollow body having a receiving space and an open end, a cover member covering the open end, and having a filling hole in fluid communication with the receiving space and extending through an outer side of the cover member, an elastic sealing member fitted within the filling hole, and a heat transfer fluid disposed in the receiving space. The elastic sealing member is pierceable to provide a passage for injection of the heat transfer fluid through the elastic sealing member, and is contractible to seal the passage.

Abstract: A heat-dissipating device includes a hollow heat-transfer member adapted to be disposed on a heat-generating source and confining a vacuum sealed chamber therein, an amount of coolant medium contained in the vacuum sealed chamber for heat exchange, and a plurality of heat-dissipating fins provided on the heat-transfer member. The vacuum sealed chamber has a wider section, a narrower section, and a neck section between the wider and narrower sections. The neck section hampers movement of the coolant medium from the wider section to the narrower section when the heat-transfer member is tilted from an upright position, where the narrower section is disposed above the wider section.

Abstract: A method for sealing an open end of a heat pipe includes the steps of pressing the open end of the heat pipe to form a closed end by using a pressing jig, and projecting a laser beam onto the closed end so as to simultaneously cut and weld the closed end, thereby sealing the closed end of the heat pipe.

Abstract: A vapor-liquid separating type heat pipe device includes a heat sink member mountable on a heat source, tubular outer and inner bodies, a heat transfer fluid, a top vapor passage, and a bottom liquid passage. The outer body has an outer peripheral wall defining an inner chamber. The inner body is disposed in the inner chamber, and has an inner peripheral wall defining thereinside an evaporating space and cooperating with the outer peripheral wall to define a condensing space therebetween. The fluid is introduced into the inner chamber. The vapor passage is provided between and is in fluid communication with the evaporating and condensing spaces. The liquid passage is provided between and is in fluid communication with the condensing space and the heat sink member. The vapor and liquid passages are located proximate to the top and bottom ends of the inner and outer bodies, respectively.

Abstract: A heat exchange device includes a tubular outer body having an outer wall confining a receiving space, a tubular inner body disposed in the receiving space and having an inner wall with an inner wall surface, a liquid chamber containing a heat transfer liquid, a ventilating space defined within the inner wall, and a plurality of inner fins projecting into the ventilating space from the inner wall surface of the inner body.