37results about How to "Increase the effective lighting area" patented technology

A light guide plate has an end surface configured to have light incident thereon, a light introduction part that confines light incident through the end surface, and a light guide plate body disposed to be continuously joined to the light introduction part. The light guide plate body has a thickness smaller than a maximum thickness of the light introduction part. The light guide plate body outputs the incident light to an outside from a lighting region through a light exit part. The light introduction part includes an inclined surface in at least one of a light-exit-side surface and an opposite surface of the light-exit-side surface. The directivity change pattern changes directivity of the light passing to the lighting region from the light introduction part.

The invention provides a solar cell. The solar cell comprises a cell substrate and an electrode printed on the substrate, wherein the electrode comprises a plurality of main grid lines; each main grid line is provided with a plurality of nodes used for testing; and the diameter of each main grid line is 0.1-1 mm. The solar cell provided by the invention can enlarge effective illumination area of the solar cell, reduce dropping probability of the main grid lines of the solar cell and reduce large-scale production cost.

The invention discloses a novel solar energy battery piece which comprises a base plate, a front electrode structure arranged on the front of the base plate and a back electrode structure arranged on the back of the base plate. The front electrode structure comprises a plurality of parallel main grid lines printed on the front of the base plate and multiple vice grid lines vertically connected with the main grid lines. Partition lines are arranged on the vice grid lines between every two adjacent main grid lines in a partition mode. A batter piece which is prone to failure or poor performance as a whole due to partial cutting-out or damage in the prior art is divided into multiple isolated power generating zones. When an abnormal situation happens to one zone, the other zones can still work normally so that affection of partial abnormality on the whole battery is obviously reduced, stability and safety of the solar battery piece are improved, meanwhile, different isolated power generating zones can be respectively used and use flexibility and range of the battery piece are enhanced.

The invention relates to the technology field of a manufacturing process of an electronic device and materials thereof, and relates to a silicon solar cell front electrode leadless main grid slurry and preparation method thereof. The leadless main grid slurry comprises, in weight percentage, the following ingredients: 55-75wt% of spherical silver powder, 2.5-10wt% of sheet-shaped silver powder, 1-3wt% of glass powder, and 15-40wt% of organic carrier; the particle size of the spherical silver powder is 0.5-2.5mu m, and the tap density is 3.0-4.0g/ml; the particle size of the sheet-shaped silver powder 2.5-5mu m, and the tap density is 2.0-3.5g/ml; the glass powder is in Bi2O3-SiO2-B2O3-TeO2-ZnO glass system; the ingredients of the leadless main grid slurry have a good dispersibility; the prepared silicon solar cell after sintering has a stable electrical performance; the effective lighting area of the solar silicon chip is improved; and the conversion efficiency of the solar sheet is improved.

The invention provides a solar photovoltaic cell assembly protected by the back plate tempered glass, and belongs to the technical field of solar photovoltaic assemblies. The solar photovoltaic cell assembly comprises a solar photovoltaic cell assembly body. The solar photovoltaic cell assembly body comprises a panel, a silicon wafer plate, a back plate and a back plate protective plate. The solar photovoltaic cell assembly is characterized in that a sealing rubber strip is arranged to surround the peripheral edge part of the solar photovoltaic cell assembly body. Meanwhile, the four corners of the solar photovoltaic cell assembly body are respectively provided with a corner protective member. By means of the four corner protective members, the panel, the silicon wafer plate, the back plate and the back plate protective plate are mutually combined as one piece. According to the technical scheme of the invention, the overall mechanical strength of the solar photovoltaic cell assembly is improved, and the solar photovoltaic cell assembly is longer in service life. The solar photovoltaic cell assembly is convenient in inspection and maintenance, and the long-term stable operation of the solar photovoltaic cell assembly is ensured. The generation of virtual seams between the layers of the solar photovoltaic cell assembly is avoided, so that the service life of the solar photovoltaic cell assembly is not influenced at all. During the packaging, warehousing, transporting and installing process, the solar photovoltaic cell assembly is well protected by the back plate tempered glass. Meanwhile, the solar photovoltaic cell assembly is prevented from getting aged, and is convenient to machine, good in elasticity and excellent in restorative property. The back plate tempered glass can be in good contact with the solar photovoltaic cell assembly body and the clamping force between the back plate tempered glass and the solar photovoltaic cell assembly body is strong.

The invention discloses a tungsten diselenide and metal vertical schottky junction self-driven photoelectric detector and preparation and belongs to the technical field of material application. The tungsten diselenide and metal vertical schottky junction self-driven photoelectric detector comprises an insulating substrate, a tunneling layer, a metal electrode and a tungsten diselenide nanosheet. Self-driven detection of a device is achieved by using a photovoltaic effect generated by a schottky junction formed by tungsten diselenide and metal under illumination, the light accepting area of a junction area is expanded through a vertical structure, an adjustable detection wavelength range is achieved through controlling the number of tungsten diselenide layers, increase of reverse current isinhibited through the tunneling layer, the sensitivity of the detector is improved and the response time is prolonged.

The invention relates to the technical field of solar electrical energy generation, and particularly relates to a light-focusing solar generator and a solar absorber thereof. The solar absorber comprises a tank, a reflecting cone and a heat-absorbing tube assembly, wherein the tank comprises a cylindrical cavity; an opening for forming a light path is formed in the top of the tank; the reflecting cone is arranged at the bottom of the cylindrical cavity; the conical wall surface of the reflecting cone faces the opening; the heat-absorbing tube assembly is fixedly arranged in the cylindrical cavity, surrounds the reflecting cone and comprises a plurality of single-pass heat-absorbing tubes; each single-pass heat-absorbing tube comprises a working medium inflowing header for flow and heat transfer of a working medium, a working medium outflowing header and heat transfer thin tubes; the outer wall surface of the tank is coated with a low emissivity material layer; the inner wall surface of the tank and the conical wall surface of the reflecting cone are coated with high reflectivity material layers; and the wall surfaces of the single-pass heat-absorbing tubes are coated with high absorptivity material layers. The solar absorber is relatively simple in structure, relatively low in cost, high in energy conversion rate and convenient for large-area popularization and application.

The invention discloses an upturned solar sun-protection packsack with a rigid frame. The upturned solar sun-protection packsack comprises a packsack main body to which back straps are fixedly connected, wherein the rigid frame is arranged inside the packsack main body; a first solar panel is fixedly arranged on the back lighting surface of the packsack, and a second solar panel, for the purpose of sun protection, is connected to the rigid frame of the main body by virtue of a supporting rod; the second solar panel, together with the supporting rod, can be turned upwards around a connecting shaft to the head of a packsack user; and the approximate mutual surfaces of the first solar panel which is fixedly arranged on the back of the packsack and the second solar panel which is foldable are mutually perpendicular. Compared with the prior art, the packsack disclosed by the invention is provided with photovoltaic modules on the upper part and the back of human head, and function expansion of transforming the photovoltaic modules into a sun-protection plate or a hat is achieved; and a lighting area is improved, and the packsack is more than twice that of the combined generating power of a solar packsack making use of a same solar component. A larger solar device can be formed by combing multiple packsacks or multiple persons.

The invention discloses a floating device of a water solar cell panel. The floating device comprises a floating body and a base, wherein a plurality of holes extending downwards are formed in the upper surface of the floating body; a plurality of supporting rods are arranged at the lower end of the base, the lower end of the base is arranged in the holes and is connected with the holes, a frame is slantly arranged at the upper end of the base upwards, and the solar cell panel is erected on a frame; the floating body is suspended in water so as to support the floating device and the cell panel, and after the cell panel is installed in place, the height of a water level is positioned between the upper surface of the floating body and the upper end of the base. The floating device effectively solves the problem that the water quality is decreased, and simultaneously the shaking of the floating device in water is reduced, so that the power generation efficiency of the cell panel is improved, the operating temperature of the cell panel is effectively reduced, and the power generation efficiency of the cell panel is further improved.

The invention discloses a plane-frame shaped luminous source. An entire pattern is a rectangle, two lines at the leftmost and the rightmost are round-head LEDS with outward vertical inclination anglesat 30-45 DEG; the third line at the left is flat-head LEDs in uniform distribution, the fourth line is flat-head LEDs and round-head LEDs in uniform distribution and interval arrangement, the fifth line is flat-head LEDs in uniform distribution, the sixth line is the flat-head LEDs and the round-head LEDs in in uniform distribution and interval arrangement, and the LEDs are arranged based on thisrule until the two lines of LEDs at the rightmost are the round-head LEDs; except the condition that the outward vertical inclination angles of the round-head LEDs in the lines that two lines of flat-end LEDS and the round-head LEDs are arranged in a mixed manner arranged in the center are zero, the outward vertical inclination angles of the round-head LEDS at the first line round-head LEDs at the n-th line to the outside from the center in the lines are changed as 20-25 DEG from 12-16 DEG, six flat-head LEDS surround each round-head LED, every three proximate flat-head LEDs or the round-headLEDs respectively form an equilateral triangle. The plane-frame shaped luminous source disclosed by the invention is high in brightness, large in irradiation area, free from dead angle and uniform inbrightness; under the condition of adopting the least LED, the effective illumination area is the biggest. The cost sum of all lamps on the road with above streetlamp is greatly reduced.