Abstract: A trigger switch device of power tool for preventing accidental triggering is disclosed, comprising a trigger, provided at front end of the handle of power tool, and a safety switch, provided at a side of the handle; when neither the trigger nor the safety switch is operated, the safety switch locks the trigger so that the trigger cannot pressed; when the safety switch is pressed, the lock on the trigger is released and the trigger can be pressed. When the safety switch is released with the trigger pressed, the safety switch locks the trigger so that the trigger remains in the pressed state; when the trigger is in the pressed state and the safety switch is operated, the trigger is unlocked and automatically returns to the original non-pressed position and the safety switch locks the trigger again. As such, the trigger cannot be pressed to prevent accidental triggering.

Abstract: A chain saw includes a wheel and a chain plate exposed to a saw casing, a chain trained over the wheel and the plate, and a driving device for driving the wheel. The plate is formed with an elongated slot. A chain tension adjustment mechanism includes a shielding cover disposed between the casing and the plate; a slide element disposed movably between the plate and the shielding cover, has a protrusion extending through the slot in the plate; and a biasing member biasing against the slide element and the shielding cover so as to push the slide element away from the wheel, wherein, movement of the plate toward the wheel against biasing action of the biasing member results in retraction of the biasing member from its initial shape and pressing the slide element toward the wheel, thereby releasing the chain from the plate and the wheel and vice versa.

Abstract: An electric tool includes a first casing having an upper housing and a second casing having a connection portion fastened with the upper housing and a cone-shaped portion connected to the connection portion in such a manner to define several circumferential recesses on an exterior surface, wherein the cone-shaped portion is truncated and has a diameter that gradually decreases from one end to the other end; a shaft mounted rotatably to a front end of the cone-shaped portion; a light permeable structure including several light permeable elements disposed in the circumferential recesses respectively; and a lighting structure disposed in the connection portion and having several light emitting sources, which are corresponding to and are capable of emitting light rays through the light permeable elements respectively.

Abstract: The present invention provides a power-driven hedge trimmer with a movable front handle. The power-driven hedge trimmer includes: a power and trimming assembly, a gripping assembly and a control unit. The power and trimming assembly includes a trimming blade and a power source. The trimming blade is connected to the power source so as to be driven to reciprocate. The gripping assembly includes a front gripping portion, a connecting portion and a rear gripping portion. The control unit is disposed on the connecting portion for controlling the power source. The front gripping portion includes a suspended front arm, a front handle and a front stop lock. The front handle is lockable at two locking positions, which are located on two opposite sides of the suspended front arm, with the front stop lock.

Abstract: A stator structure for an electric motor unit, includes a main body; an insulated member mounted on the main body; a plastic body disposed on the insulated member; a copper circuit path disposed on the plastic body; a plurality of first and second windings, each being wound on the main body, consisting of a metal wire and a coated sheath enclosing the metal wire and includes first and second leading ends extending through the insulated member so as to be soldered on the copper circuit path; and several power conducting wires, each having a distal section soldered with the corresponding second leading end of a respective one of the second windings.

Abstract: A chain saw includes a wheel and a chain plate exposed to a saw casing, a chain trained over the wheel and the plate, and a driving device for driving the wheel. The plate is formed with an elongated slot. A chain tension adjustment mechanism includes a shielding cover disposed between the casing and the plate; a slide element disposed movably between the plate and the shielding cover, has a protrusion extending through the slot in the plate; and a biasing member biasing against the slide element and the shielding cover so as to push the slide element away from the wheel, wherein, movement of the plate toward the wheel against biasing action of the biasing member results in retraction of the biasing member from its initial shape and pressing the slide element toward the wheel, thereby releasing the chain from the plate and the wheel and vice versa.

Abstract: A hedge trimmer includes elongated upper and lower blades overlapping relative to each other, each of the blades including a trimming portion having an outer periphery formed with a plurality of trimming edges and a mounting portion formed with a guiding hole; upper and lower eccentric wheels that extend into the guiding holes of the blades and that is formed with an eccentric hole respectively; and a brushless motor including an output shaft extending into and operably coupled with the eccentric holes in the eccentric wheels such that activation of the motor results in rotation of the eccentric wheels within the guiding holes in the blades, thereby driving the blades reciprocally relative to each other along their longitudinal direction.

Abstract: The present invention provides a power-driven hedge trimmer with a movable front handle. The power-driven hedge trimmer includes: a power and trimming assembly, a gripping assembly and a control unit. The power and trimming assembly includes a trimming blade and a power source. The trimming blade is connected to the power source so as to be driven to reciprocate. The gripping assembly includes a front gripping portion, a connecting portion and a rear gripping portion. The control unit is disposed on the connecting portion for controlling the power source. The front gripping portion includes a suspended front arm, a front handle and a front stop lock. The front handle can be locked at two locking positions, which are located on two opposite sides of the suspended front arm, with the front stop lock.

Abstract: The present invention provides a power-driven hedge trimmer with a movable power assembly. The power-driven hedge trimmer includes: a power and trimming assembly, a gripping assembly and a control unit. The power and trimming assembly includes a trimming blade and a power source. The trimming blade is connected to the power source so as to be driven to reciprocate. The gripping assembly includes a front gripping portion, a connecting portion and a rear gripping portion. The control unit is disposed on the connecting portion for controlling the power source. The front attaching portion and the rear attaching portion are two rotary shafts. A rear stop lock is disposed on the rear gripping portion for locking the front attaching portion and the rear attaching portion at fixed locations.

Abstract: An illumination device includes a light reflector; a base member disposed below the light reflector, having an upper surface provided a light emitting unit for emitting a direct light beam that extends directly to an exterior of the reflector and an indirect light beam that extends to the exterior of the reflector only after being reflected from the reflector; an optical lens disposed within the reflector in such a manner so as to be located above, spaced apart from the light emitting unit at a predetermined distance and lied within a traveling path of the direct light beam such that the direct light beam is adapted to pass through the optical lens; and a lens seat mounted securely on the reflector, having a lower surface that faces the base member and that is formed with a plurality of light incident sections located adjacent to one another.

Abstract: An illumination device includes a light reflector; a base member disposed below the light reflector, having an upper surface provided a light emitting unit for emitting a direct light beam that extends directly to an exterior of the reflector and an indirect light beam that extends to the exterior of the reflector only after being reflected from the reflector; an optical lens disposed within the reflector in such a manner so as to be located above, spaced apart from the light emitting unit at a predetermined distance and lied within a traveling path of the direct light beam such that the direct light beam is adapted to pass through the optical lens; and a lens seat mounted securely on the reflector, having a lower surface that faces the base member and that is formed with a plurality of light incident sections located adjacent to one another.

Abstract: An angle adjustable lamp includes a base, at least one lamp holder, a support rod installed between the base and the lamp holder, and an angle adjusting mechanism disposed between the support rod and the lamp holder. The angle adjusting mechanism includes a plurality of cavities circularly arranged at one end of the support rod, at least one protrusion formed on the lamp holder and a bolt. The shape and location of the protrusion is corresponding to the cavities. The bolt pivots the support rod and the lamp holder, so the protrusion can be engaged with various cavities. When the lamp holder is turned, the location of the protrusion is changed so as to be engaged with another cavity, such that the illumination angle of the lamp is adjusted. The adjusted angle is fixed through tightening the bolt.

Abstract: An angle adjusting mechanism for a streetlamp includes a housing connected with a lamp, and an angle positioning board and a lamppost sleeve installed in the housing. The angle positioning board has a first positioning hole and a plurality of second positioning holes. The lamppost sleeve has a first positioning tube and a second positioning tube. Through pre-arranging corresponding angles of the angle positioning board and the lamppost sleeve, the illumination angle of the lamp is capable of being adjusted. Moreover, the lamppost sleeve and the angle positioning board are fastened by screws, so the illumination angle of the lamp and the housing can be rapidly adjusted through loosening or fastening the screws.

Abstract: A method and an apparatus for compacting a CIGS thin film in a non-vacuum environment are provided. According to the present invention, a substrate having a CIGS light absorbing layer configured thereon is processed with a soft baking process. Then, a pneumatic cylinder is employed for providing a pressure for driving a roller which is fixed to a holder. The holder is connected to the pneumatic cylinder. The roller is driven to downwardly apply a pressing force onto the CIGS light absorbing layer. The substrate is then moved back and forth to compact the CIGS light absorbing layer uniformly.

Abstract: A method for fabricating a copper/indium/gallium/selenium solar cell by a wet process under non-vacuum condition is provided.

Abstract: A method for preparing a CIGS ink without a surfactant or a binder is provided. In accordance with the method of the present invention, an initial CIGS mixture powder is obtained by mixing two component powder, three component powder or four component powder of copper, indium, gallium, and selenium in predetermined proportions. Then additional selenide powder is added and mixed into the initial CIGS mixture powder to form a final CIGS mixture powder. Then, a certain proportion of solvent is added into the final CIGS mixture powder, and the mixture powder is then stirred to obtain a CIGS ink in a predetermined copper/indium/gallium/selenium ratio as desired.

Abstract: A method and a system for forming a copper indium gallium sulfur selenide (CIGSSe) absorption layer and a cadmium sulfide (CdS) buffer layer under non-vacuum condition is disclosed. A coating layer is formed on the back electrode layer on the substrate by mixing the slurry on the back electrode layer, and the coating layer formed on the back electrode layer is densified by a densification device after initially dried, and then a primary selenization/sulfurization reaction process is carried out to form a primary CIGSSe layer, and then a thermal process is carried out to improve the lattice match of the primary CIGSSe layer, and then an impurity cleaning process is carried out by using potassium cyanide or bromide to remove the impurities of cuprous selenide and copper sulfide, and then a rear-stage selenization/sulfurization reaction process is carried out to produce the required rear-stage CIGSSe absorption layer.

Abstract: A wet ball mill method for fabricating copper/indium/gallium/selenium (CIGS) nanoparticles, comprising an individual milling process, a homogeneously mixing process, a primary milling process, and an advanced milling process, wherein in the individual milling process, the individual particles or compound particles including copper, indium, gallium and/or selenium are milled to the individual milled materials with a particle size 500 nm to 600 nm; in the homogeneously mixing process, the individual milled materials are mixed to a mixed homogenate; in the primary milling process, the mixed homogenate is milled to the primary milled materials with particle size 100 nm to 200 nm; and in the advanced milling process, the primary milled materials are milled to the advanced milled materials with particle size less than 50 nm which are the CIGS nanoparticles for fabricating the absorption layer of CIGS solar cell.

Abstract: A method for fabricating a copper/indium/gallium/selenium solar cell by a wet process under non-vacuum condition is provided.

Abstract: A method for fabricating a cadmium sulfide thin film, in which the chemical bath including the sulfur-containing compounds and the cadmium-containing compounds is adjusted to alkaline by adding aqueous ammonia, followed by adding the buffer salts while stirring and heating, and then the glass substrate is immersed in the chemical bath such that when the immersing time is increased, the thickness of cadmium sulfide thin film will be increased, and the cadmium sulfide thin film obtained does not have a dual structure, and thereby the obtained cadmium sulfide thin film can have excellent adhesion to the glass substrate, and thereby the quality of cadmium sulfide thin film can be improved.