Abstract: A heat dissipating fan includes a housing having an air inlet and an air outlet between which an air passageway is formed. A fixed seat is provided in the air passageway and includes first positioning holes. A magnetically conductive first casing includes a first outer wall, a first annular lip extending radially outward from an end of the first outer wall and having second positioning holes aligned with the first positioning holes, and a first support on the other end of the first outer wall. A second casing includes a second outer wall, a second annular lip extending radially outward from an end of the second outer wall and having third positioning holes aligned with the first positioning holes, and a second support on the other end of the second outer wall. Fasteners extend through the first, second and third positioning holes. A motor is mounted in the first and second casings.

Abstract: An LED lamp includes a heatsink housing (2) and an alternating current LED module (1). The alternating current LED module includes a heat conducting portion (10) combined with the heatsink housing and two electrical connections (11) electrically connected with an external power supply. Thus, the heatsink housing forms a porous structure to provide a greater heatsink effect and to quickly carry away the heat produced by the alternating current LED module to enhance the heat dissipation efficiency of the alternating current LED module. In addition, the heatsink housing is directly formed to have the profile of a common lamp housing and is provided with a metallic screw base (21), an insulating gasket (22) and a power contact plate (23) so that the heatsink housing can be mounted on a traditional receptacle to replace the conventional electric bulb.

Abstract: An LED current-balance driving circuit for driving a plurality of LED strings comprises a feedback transformer, a plurality of current-balance transformers, a plurality of full-wave rectifiers and a current control circuit. The feedback transformer has a detecting winding and an outputting winding for outputting a feedback signal. Each of the current-balance transformers has a primary winding and a secondary winding. The primary windings of the current-balance transformers and the detecting winding of the feedback transformer are coupled in series to compose a current-balance loop with an AC power being supplied thereto. Each of the full-wave rectifiers is coupled between a corresponding secondary winding of the current balance transformers and a corresponding LED string of the LED strings. The current control circuit receives the feedback signal and controls the AC power according to the feedback signal.

Abstract: A system includes first and second illuminating devices respectively having different first and second identification numbers indicative of locations and/or serial numbers of the illuminating devices. A parameter of one of voltage, temperature, resistance, and power of a lighting unit of each illuminating device is detected. The parameter and the identification number of each illuminating device are encoded into a packet. The second illuminating device receives the packet of the first illuminating device and sends the packets of the first and second illuminating devices to a control center. The control center decodes the packets and judges operational states of the illuminating devices based on the parameters detected. A control signal is sent by the control center to turn on or off or control brightness of at least one of the illuminating devices when at least one of the illuminated devices is judged as operating abnormally after judging the parameters detected.

Abstract: A fire bolt assembly (10) includes a receiving tube (20) mounted in a door (106). A mounting member (32) is mounted to the receiving tube (20) and includes two coupling faces (56). A positioning bolt (90) is received in the receiving tube (20) and includes a front end (92). A spring (100) is mounted in the receiving tube (20) for biasing the front end (92) of the positioning bolt (90) out of the receiving tube (20). A stop member (58) includes two legs (66) respectively engaged with the coupling faces (56) of the mounting member (32) to hold the positioning bolt (90) in the receiving tube (20). The front end (92) of the positioning bolt (90) is moved out of the receiving tube (20) to engage with a coupling hole (116) in another door (112) or a door frame when the stop member (58) melts due to the heat of the fire, locking the door (106) in place during the fire.

Abstract: A fan frame structure includes a plastic casing and a metal fixing frame. The plastic casing and the metal fixing frame are provided for an axial flow fan or a blower fan. The plastic casing includes a bottom having a plurality of first fixing portions. The metal fixing frame includes a base with a shaft tube seat in a center thereof. The base includes a plurality of second portions each engaged with one of the first fixing portions. Since the plastic casing is made of inexpensive plastic material, the manufacturing costs are cut. The metal fixing frame provides sufficient structural strength and desired heat dissipating effect.

Abstract: A coil unit for a motor stator includes a plurality of layout layers. At least one coil and a conductive portion electrically connected to the at least one coil are formed on a surface of each layout layer. The conductive portions of two adjacent layout layers are electrically connected to each other. An insulting layer is provided between two adjacent layout layers. The coil unit can be coupled to a face of a substrate to form a motor stator with reduced axial height and reduced volume.

Abstract: The present invention is related to a display with slide structure. The display comprises a rear casing, a stand, a fixing unit, a movable unit and at least one spring. The stand has an arc structure disposed beneath. The fixing unit is firmly disposed at the rear casing and contains at least one first holding part and at least one rail. The movable unit connects with the stand and contains at least one second holding part; wherein the movable unit is repeatedly movable by means of the rail. The spring is respectively connected to the first holding part and the second holding part with two ends. Whereby, the stand could be repeatedly movable against the rear casing by means of the movable unit and touch a flat surface by distinct sites of the arc structure, so that the display might maximize its inclined angle.

Abstract: A harness (10) for a backpack vacuum cleaner (100) includes a back plate (20) mounted to a vacuum cleaner body (102). The back plate (20) includes an intermediate portion (22) and two flexible sections (24) on opposite sides of the intermediate portion (22). A waist strap (90) is fixed to the back plate (20) between the flexible sections (24). The flexible sections (24) are flexible to respectively pivot about two spaced vertical pivot axes (72). Upper ends (82) of two shoulder straps (80) are attached to a mounting plate (50) slideably mounted to the back plate (20), and lower ends (84) of the shoulder straps (80) are attached to the flexible sections (24). Relative positions between the upper and lower ends (82 and 84) of the shoulder straps (80) can be adjusted by moving the mounting plate (50). When a user moves his or her shoulders, the connection points (32) of the flexible sections (24) flex to respectively pivot about the pivot axes (72).

Abstract: A motor includes a base, a stator and a rotor. The base is equipped with a shaft tube having an outer circumferential wall. The stator is coupled with the shaft tube of the base and has an assembly hole. A plurality of close-fitting portions is formed between an inner circumferential wall of the assembly hole and the outer circumferential wall of the shaft tube, and an adjustment gap is formed between each two adjacent close-fitting portions. The rotor has a shaft rotatably coupled within the shaft tube of the base.

Abstract: A motorized rocking chair includes a support frame, a seat pivotally mounted on the support frame, an actuating mechanism mounted between the support frame and the seat to drive the seat to move relative to the support frame, a backrest pivotally mounted on the seat, and a telescopic mechanism mounted between the seat and the backrest to drive the backrest to move relative to the seat. Thus, the actuating mechanism is controlled by an electrically control device to drive the seat to pivot relative to the support frame reciprocally in a pendulum manner so that the seat is pivoted relative to the support frame automatically. In addition, the telescopic mechanism is controlled by the electrically control device to adjust the inclined angle of the backrest so as to provide a comfortable sensation to the user.

Abstract: A driving device for a toner cartridge includes a cartridge body and a driving portion disposed on the cartridge body. A transmission mechanism is disposed in the cartridge body. The driving portion includes a driving motor and a controller. The controller receives signal transmitted from a controller unit of a printing apparatus to precisely control the operation of the driving motor. The driving motor is connected with the transmission mechanism. Through the driving action of the driving portion, the transmission load of the printing apparatus can be reduced, and the stability of the printing system can be improved. Moreover, because the driving portion is built in the cartridge body, the gear transmission mechanisms of both of the printing apparatus and the toner cartridge can be simplified, and malfunction can be solved.

Abstract: A method for manufacturing combination wrenches includes preparing a material plate having a plurality of wrench material pieces. Each wrench material piece is sheared off from the material plate and then pressed in a sealed mold at a temperature without generating carbon scale to form a semifinished product including first and second driving ends and a handle interconnected between the first and second driving ends. The first and second driving ends of the wrench semifinished product are processed to form a combination wrench having a box end and an open end.