Abstract: The present invention relates to a heat sink of a large area, in which a heat-dissipating body is further provided in its limited space. The method for manufacturing a fin includes the steps of providing a fin, cutting the fin to form a foldable piece thereon, folding back the foldable piece to be overlapped on the fin and form an accommodating hole, and punching the folded piece and the fin to form two overlapped through-holes. The fin, the heat-dissipating body and heat pipes are assembled together to obtain the heat sink. Since the fins and the heat-dissipating body dissipate the heat of the heat-generating element simultaneously, the heat-dissipating efficiency of the heat sink can be improved.

Abstract: A heat-dissipating fin of a large area is made of a metallic sheet and has a fin body. An outer edge of one side of the fin body extends to form a sheet-like expanding portion. The expanding portion is bent and overlapped on the fin body to obtain the heat-dissipating fin. A heat sink includes a plurality of heat-dissipating fins and a heat-conducting element, which is formed by means of penetrating the respective heat-dissipating fins with a condensing section of the heat-conducting element.

Abstract: A heat-dissipating fin capable of increasing heat-dissipating area includes a lower plate and an upper plate. The lower plate is provided with a through-hole. The upper plate extends from the lower plate and is bent to be overlapped on the lower plate, thereby forming a heat-dissipating path (b) therebetween. The present invention further provides a heat sink having such heat-dissipating fins, which includes a heat pipe and the heat-dissipating fins. The heat pipe has a heat-absorbing section and a heat-releasing section. The heat-dissipating fin has a lower plate and an upper plate. The upper plate is bent to be overlapped on the lower plate, thereby forming a heat-dissipating path (b) therebetween. The lower plate and the upper plate are provided with a through-hole respectively in such a manner that these two through-holes correspond to each other. The heat-releasing section of the heat pipe penetrates the through-holes of the heat-dissipating fins successively.

Abstract: A method for making heated plane of a cooler obtain better flatness and roughness includes a grinder with a grinding plate and a fixture. Then, the cooler is arranged onto the fixture. Next, the abrasive is injected into the gap between the grinding plate and the heated plane, making the fixture press and clamp the cooler in a way, such that the heated plane of the cooler contacts the abrasive closely. Finally, the grinding plate is rotated to make at least one grinding process to the heated plane, making the heated plane obtain a surface with better roughness and flatness, further enhancing the contact tightness between the heated plane and a heating element, and therefore promoting the thermally conductive efficiency between the cooler and the heating element.

Abstract: A heat sink and heat-dissipating fins have wave-shaped folds. The heat sink includes a plurality of heat-dissipating fins that are radially connected together to form a ring. The inside of the heat-dissipating fins is formed with an accommodating space for allowing a heat-generating element to be disposed therein. The heat-dissipating fin is a metallic piece with its one side bent vertically to form a fold. The fold is bent continuously to form a wave shape. Via the wave-shaped folds, the user can grip the heat-dissipating fins easily. Further, the rigidness and strength of the fold can be increased.

Abstract: An adjusting structure of adjustable window curtain prop stand includes two prop plates and an adjusting structure arranged between the two prop plates. The adjusting structure further includes a lead screw, two displacing elements, two positioning elements and a plurality of connecting elements. The lead screw has two external threads respectively with different directions of spiral and available for being engaged with the two displacing elements thereon. The two positioning elements are respectively secured to inner side faces of the two prop plates to be located at an upper and a lower positions between the two displacing elements, where each connecting element is separately and actively connected between the two displacing elements and the two displacing elements, such that a linkage mechanism is formed by taking the two displacing elements as a gliding pair.

Abstract: A power adapter for an electronic device selectively works in different modes according to a working state signal of the electronic device. When the electronic device is powered off or on with a battery in a determined charge state, the power adapter controls a relay to turn off the relay to disconnect power to the electronic device.

Abstract: A LED lamp holder includes a lamp cover and a heat-dissipating device provided in the lamp cover. An accommodating inlet is provided on the lamp cover. A LED unit is provided below the lamp cover. A cover plate covers the accommodating inlet. The heat-dissipating device includes a heat-absorbing plate, a heat-dissipating plate and a heat pipe connected between the heat-absorbing plate and the heat-dissipating plate. The heat-absorbing plate is brought into contact with the LED unit, while the heat-dissipating plate is brought into contact with the cover plate. The cover plate is penetrated by a plurality of screw elements. Each of the screw elements is screwed to the heat-absorbing plate. The length of each screw element exactly makes the heat-absorbing plate to abut and contact the LED unit.

Abstract: A light emitting diode (LED) lamp tube heat dissipating structure is capable of dissipating heat in a tube quickly to improve the heat dissipating efficiency. A circuit board with a light radiating surface and a heat dissipating surface is contained in the tube, and the light radiating surface of the circuit board is electrically connected to LED lamps. Two conductive bushings are sheathed onto both ends of the tube and electrically connected with the circuit board, and at least one heat dissipating hole is disposed separately on both distal surfaces of the tube that covers the heat dissipating surface of the circuit board, such that external air is entered into the tube from the heat dissipating hole on a distal surface of the tube and dispersed from the heat dissipating hole on another distal surface of the tube for dissipating the heat in the tube.

Abstract: A road lamp holder structure includes a lamp guard (1), an LED unit (2) installed at the bottom of the lamp guard (1), and a heat dissipating device (30) installed in lamp guard (1) and having a base (30), a vapor chamber (31) and two heat dissipating elements (32) attached to the LED unit (2). The vapor chamber (31) includes a heated section (310) attached onto the base (30), two heat transmitting sections (311) bent and extended upward from both sides of the heated section (310) respectively, a condensing section (312) bent and extended laterally from each of the two heat transmitting sections (311), two heat dissipating elements (32) having a heated base (30), and heat dissipating fins (321) disposed on the heated base (30). The two heated bases (30) are attached onto external sides of the two heat transmitting sections (311) of the vapor chamber (31) respectively, and the two condensing sections (312) of the vapor chamber (31) are attached to the internal periphery of the top of the lamp guard (1).

Abstract: A control circuit for a switching power supply (SPS) includes power input and output interfaces, a relay, a relay driving circuit, a microprocessor, and an alternating current/directing current (AC/DC) converter. The power input interface receives an external alternating current (AC) power signal, and transmits the AC power signal to the SPS via the power output interface. The AC/DC converter transforms the AC power signal into a direct current (DC) power signal to supply for the relay, the relay driving circuit, and the microprocessor. When a computer is turned on, the microprocessor sends a first control signal to control the relay driving circuit to drive the relay to connect the power input and output interfaces. When the computer is turned off, the microprocessor sends a second control signal to control the relay driving circuit to drive the relay to cut off connection between the power input and output interfaces.

Abstract: A multi-phase driving circuit includes a single-phase pulse-width modulation (PWM) controller, a number of drivers, and a number of switch circuits connected to the number of drivers correspondingly. The single-phase PWM controller is configured for providing a single-phase PWM signal. Each of the number of drivers receives the single-phase PWM signal and adjusts a phase of the single-phase PWM signal to output an adjusted PWM signal. Each of the number of drivers also outputs a driving signal. Each of the number of switch circuits receives the adjusted PWM signal and the driving signal from a driver. Each of the number of switch circuits generates a driving voltage controlled by the driving signal and adjusts a phase of the driving voltage controlled by the adjusted PWM signal and then outputs the adjusted driving voltage, so as to make the number of switch circuits output a multi-phase driving voltage to a load.

Abstract: In a heat sink and a method for assembling the same, the heat sink includes a base, a heat pipe, fins, a presser and caps. The presser is provided with through-holes. The periphery of the through-hole is provided with an annular neck, so that the distal end of the heat pipe can penetrate the through-hole. The periphery of each annular neck is provided with notches on the presser. Each cap covers on the annular neck, and it extends downwards to form protruding flaps. The flap penetrates the notch and is folded outwards to abut the bottom surface of the presser. According to the assembling method, via the presser and the caps, the fins can be assembled with the heat pipe tightly.

Abstract: An integrated circuit (IC) package module includes a carrier, an IC chip, a number of wires, a number of pins, a seal member, and a thermal conductor. The IC chip is attached on a top surface of the carrier. The number of pins is connected to the IC chip via the number of wires. The seal member contains the carrier, the IC chip, and the number of wires. The thermal conductor is located over or located on a top surface of the IC chip. Parts of each of the number of pins and the thermal conductor are projected out of the seal member.

Abstract: A heat dissipating structure of a lightweight lamp cup 10 made of a porous material includes a containing cavity 11 at an end of the lamp cup 10, a lamp holder 30 at another end of the containing cavity 11, a metal hood 60 sheathed with the lamp holder 30 and covered onto an external side of the lamp cup 10, a heat conduction medium 50 between the lamp cup 10 and the metal hood 60, and a light emitting unit 20 contained in the containing cavity 11 of the lamp cup 10, such that the heat produced by the light emitting unit 20 can be conducted form the lamp cup 10 to the metal hood 60 and dissipated from the metal hood 60 to the outside.

Abstract: A solar cell charging device includes a base shown as a shell shape, a light-converging lens arranged at a top face of the base, a solar collector correspondingly located under the light-converging lens and a photoelectric converting unit. A plurality of charging troughs arranged on the base are recessed inwardly from circumferential faces thereof. The photoelectric converting unit is connected between each charging trough and the solar collector, converting the light energy absorbed by the solar collector into electric energy provided to be input into each charging trough, after the light-converging lens focuses the solar energy onto the solar collector.

Abstract: In a method for juxtaposing and combining a plurality of heat pipes with a fixing base, first, a fixing base having an accommodating trough is provided. The accommodating trough is provided therein with at least one recess. Further, a plurality of heat pipes is provided. Adhesive medium is coated on the contacting surface between the heat pipe and the accommodating trough. The plurality of heat pipes is pressed into the accommodating trough. Finally, the heat pipes juxtaposed in the accommodating trough are pressed coplanarly the surface of the fixing base while a portion of the adhesive medium is received in the recess.

Abstract: A portable solar charging apparatus includes a retaining base, a snoot, a photoelectric conversion module, a power connector and a joint mechanism. The snoot is mounted onto the retaining base, and a containing space is formed between the retaining base and the snoot. The photoelectric conversion module is contained in the containing space and mounted onto the retaining base. The photoelectric conversion module includes an accumulator and a solar chip electrically connected to the accumulator. The solar chip is installed corresponding to the snoot. The power connector is connected to the retaining base and electrically coupled to the accumulator. The joint mechanism is connected to the retaining base and disposed outside the containing space. The invention allows a portable electronic product to be charged and used anytime and improves the overall photoelectric conversion efficiency.

Abstract: A multi-stage folding portable solar charging apparatus includes first, second and third photoelectric conversion modules. The second photoelectric conversion module is pivotally connected to a side of the first photoelectric conversion module and folded/unfolded with respect to an upper surface of the first photoelectric conversion module, and the third photoelectric conversion module is pivotally connected to another side of the first photoelectric conversion module and can be folded/unfolded with respect to a lower surface of the first photoelectric conversion module, such that the photoelectric conversion modules are electrically connected with each other. A connector is fixed and electrically connected to one of the photoelectric conversion modules.

Abstract: A power supply saving system includes a power input interface, a power output interface, an alternating current/direct current (AC/DC) converter, a relay, a relay driving circuit, a trigger, and a timing sequence circuit. The AC/DC converter is capable of transforming the AC power signal to direct current (DC) power to supply to the relay, the relay driving circuit, the trigger, and the timing sequence circuit. The timing sequence circuit is capable of controlling the relay driving circuit via the trigger to turn on the relay to connect the power input interface to the power output interface when the timing sequence circuit receives a power-on signal. The timing sequence circuit is capable of controlling the relay driving circuit via the trigger to turn off the relay to cut off connection between the power input interface and the power output interface when the timing sequence circuit receives a power-off signal.