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 backlight module which comprises a light source, a light guide plate and reflective sheets, wherein the reflective sheets comprise a first reflective sheet and a second reflective sheet; the first reflective sheet is arranged on the lateral surface of the light guide plate; the second reflective sheet is arranged at the bottom of the light guide plate; the light source is arranged below the first reflective sheet; the first reflective sheet is used for reflecting light emitted by the light source into the light guide plate; and after being scattered by the light guide plate and reflected by the second reflective sheet, the light is emitted out from the top of the light guide plate. Correspondingly, the invention provides a display device which comprises the backlight module. The backlight module provided by the invention has the advantages of thinning, increase of an effective lighting area, shape diversification and the like.

The invention provides an ultraviolet detector based on surface acoustic wave enhancing and a preparation method thereof. The ultraviolet detector based on surface acoustic wave enhancing comprises a semiconductor substrate and two back-to-back Schottky electrodes which are arranged on the surface of the semiconductor substrate and used for collecting photon-generated carriers and forming and outputting electrical signals. The ultraviolet detector further comprises an inter-digital transducer which is arranged on the surface of the semiconductor substrate and used for exciting surface acoustic waves to realize transport of the photon-generated carrier through the surface acoustic waves. The ultraviolet detector of the invention has the advantage that photon-generated carriers are captured and directionally transported by surface acoustic waves, distant photon-generated carriers can be transferred to a built-in electric field region of a Schottky electrode structure, recombination of photon-generated carriers is reduced, the efficiency of photoelectric conversion is improved, and a high-sensitive ultraviolet detection function is achieved.

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 discloses a method for preparing a silicon solar cell positive electrode and the main grid paste of the silicon solar cell positive electrode, and relates to the technical field of the manufacturing processes and the materials of electronic devices. The method for preparing the silicon solar cell positive electrode comprises the steps that 1) the electrode of a main grid and the electrode of a thin grid are respectively printed through two times of silk-screen printing; 2) different paste with silver or silver paste is adopted when the electrode of the main grid and the electrode of the thin grid are printed; 3) after sintering, the thickness of the electrode of the main grid is smaller than that of the electrode of the thin grid. The method can ensure the good dispersion of all components, even and soft silver electrode paste is obtained after rolling, and a silicon solar cell product is made to have good, stable and even electrical performance after the sintering.

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.

An apparatus for catalytic conversion of methane by utilizing visible light comprises a barrel; a rack is arranged in the barrel; the rack is provided with a titanium net; the titanium net is provided with a catalyst; a fan is arranged at the lower part of the rack; the upper end of the barrel is provided with a light-permeable lid; a light source arranged at a direction perpendicular to the lid; a flushing casing pipe is arranged on the periphery of the barrel; one sidewall of the flushing casing pipe is provided with a water inlet, and the lower part of the other sidewall of the flushing casing pipe is provided with a gas outlet; the bottom of the barrel is provided with at least one air intake; and one upper sidewall of the barrel is provided with a gas outlet. According to the invention, the catalyst is loaded on the titanium net, so that the apparatus has advantages of low light mass transfer loss and large effective illumination area. Gas distribution fan arranged on the bottom of the barrel guarantees uniform gas distribution of mixed gas in a reactor and increases mass transfer efficiency and degradation rate.

The invention provides a solar energy light condensing transmitting device which is large in effective daylight area, high in light strength, long in transmitting distance, small in consumption and reduced in the generation cost, and a solar-thermal power generation system of the solar energy light condensing transmitting device. The solar energy furnace solar-thermal power generation system is composed of a solar energy furnace and a plurality of the solar energy light condensing transmitting device arranged around the solar energy furnace, each solar energy light condensing transmitting device comprises a large-caliber paraboloid reflector, a small-caliber paraboloid reflector is arranged above each large-caliber paraboloid reflector, a through mouth is formed in the center of each large-caliber paraboloid reflector, a round cylinder connected with the through mouth is arranged on the back surface of each large-caliber paraboloid reflector, a solar ray automatic tracking device is arranged on the outer wall of each round cylinder, a target tracking system is arranged on the outer wall of each round cylinder on the solar ray automatic tracking device, a plane mirror is arranged on each target tracking system, and the solar energy furnace comprises a transparent glass vacuum shell and a plurality of U-shaped solar-thermal converting pipes which are arranged inside the vacuum shell and evenly distributed.

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 present invention belongs to the photovoltaic cell technical field and provides a flexible photovoltaic cell product and a preparation method thereof. The flexible photovoltaic cell product includes a flexible photovoltaic cell assembly and magnetic sheets arranged on the flexible photovoltaic cell assembly; the flexible photovoltaic cell assembly includes a back film, a first cross-linked film, a photovoltaic power generation layer, a second cross-linked film, a flexible front film and electrodes located at the side surfaces of the photovoltaic power generation layer, wherein the back film, the first cross-linked film, the photovoltaic power generation layer, the second cross-linked film and the flexible front film are distributed from bottom to top; the back electric conduction layer of a first solar cell sheet is provided with second wires; the upper electric conduction layer of a second solar cell sheet is provided with first wires; the upper surface of the flexible front film is provided with a camouflage tape; and the electrodes comprise positive electrodes and negative electrodes, wherein the positive electrodes are connected with the second wires of the first solar cell, and the negative electrodes are connected with the first wires of the second solar cell sheet. With the flexible photovoltaic cell product and the preparation method thereof of the invention adopted, connection and combination of a plurality of flexible photovoltaic cell assemblies can be realized, so that the flexible photovoltaic cell assemblies are convenient to carry, and photoelectric conversion efficiency can be improved.

The invention discloses a low-resistance serial welding structure for a solar cell component. The welding structure comprises a first cell and a second cell adjacent to each other, wherein the length of one ends, extending out of a corresponding side of a cell silicon wafer, of the negative and positive electrodes of the cells is 6 / 10a-9 / 10a; the other ends of the negative and positive electrodes of the cells is recessed in the cell silicon wafer for 0.5-3mm; and the negative electrode of the first cell is overlapped and integrally welded with the positive electrode of the second cell. Because an electrode connecting structure between cells is changed, shrinkage at the connecting part of the two cells is the thickness of the cell silicon wafer only, the shrinkage at the connecting part of the two cells is reduced, the pressure of a metal solder strip silicon wafer is greatly reduced, and the cell silicon wafer can be effectively prevented from being crushed; and meanwhile, the resistance at the connecting part is reduced by half, the power output of the cell component is improved, and the defect of short circuit of the cell component caused by softening of the heated metal solder strip is overcome. The distance between the cells can be reduced by 20-30%, the effective day-lighting area of the solar cell component is improved, and the structure is beneficial to the improvement on the output power.

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 present invention belongs to the photovoltaic cell technical field and provides a flexible photovoltaic cell product and a preparation method thereof. The flexible photovoltaic cell product includes a flexible photovoltaic cell assembly and magnetic sheets arranged on the flexible photovoltaic cell assembly; the flexible photovoltaic cell assembly includes a back film, a first cross-linked film, a photovoltaic power generation layer, a second cross-linked film, a flexible front film and electrodes located at the side surfaces of the photovoltaic power generation layer, wherein the back film, the first cross-linked film, the photovoltaic power generation layer, the second cross-linked film and the flexible front film are distributed from bottom to top; the back electric conduction layer of a first solar cell sheet is provided with second wires; the upper electric conduction layer of a second solar cell sheet is provided with first wires; the upper surface of the flexible front film is provided with a camouflage tape; and the electrodes comprise positive electrodes and negative electrodes, wherein the positive electrodes are connected with the second wires of the first solar cell, and the negative electrodes are connected with the first wires of the second solar cell sheet. With the flexible photovoltaic cell product and the preparation method thereof of the invention adopted, connection and combination of a plurality of flexible photovoltaic cell assemblies can be realized, so that the flexible photovoltaic cell assemblies are convenient to carry, and photoelectric conversion efficiency can be improved.

The invention relates to the field of photovoltaic technology, and provides a photovoltaic module angle adjusting method and device. The method comprises the steps that meteorological data of an area where the photovoltaic module is located are acquired according to position information of the photovoltaic module, and the meteorological data at least comprise irradiance data at the current time and weather types; acquiring a real-time tracking angle of the photovoltaic module through an angle tracking model based on the irradiance data; obtaining geographical environment information of an area where the photovoltaic modules are located and arrangement information of the photovoltaic modules; based on the geographical environment information, the arrangement information, the real-time tracking angle and the meteorological data, determining an angle adjustment strategy of the photovoltaic module through a three-dimensional terrain model; and adjusting the angle of the photovoltaic module based on the angle adjustment strategy. The photovoltaic module can receive the maximum effective illumination area in real time, the optimal high radiation angle is achieved, light energy can be utilized to the maximum extent, the photovoltaic power generation efficiency is improved, the power generation amount is increased, and the system power generation cost is reduced.

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.

A turnup inverse sealing type glass metal vacuum heat collecting pipe is a heat absorption pipe applied to a solar heat collecting device. Glass-metal sealing is adopted; by the turnup structure of a glass outer pipe, the glass-metal sealing joint is born with pressure changed from drawing force, the force bearing ability of the joint is greatly improved and the damage rate of the heat collecting pipe in usage is reduced, so that the whole structure of the sealing and an expansion difference compensating device is compact, the effective daylighting area of the heat collecting pipe is improved, and the temperature fluctuation of the glass-metal sealing joint is reduced.

The invention discloses an automobile instrument panel background light source LED distribution, installation and fixation mechanism, which includes a support base. A display mechanism is installed above the support base, a connecting shaft is installed at the bottom of the display mechanism in a penetrating mode, the support base is connected with the bottom of the display mechanism through the connecting shaft, and six LEDs surrounding evenly combines a novel structure form by taking one LED as a center; at the same time, N forms of surface array lighting are combined in an equal-interval mode, compared with other lines, surface and array combinations, combination forms are less, and calculating the optimal interval combination with higher relative illumination consistency is easier; andaiming at the circular lighting surfaces of a tachometer and a speedometer, the effective lighting area is improved through the structure, the number of the LED is saved, and the cost is lowered.

The invention relates to a solar thermal collector board core of a biconcave honeycomb hole hollow structure. The solar thermal collector board core comprises a sun-facing panel and a bearing panel. The sun-facing panel and the bearing panel are in smooth connection, the peripheral edge of the sun-facing panel and the bearing panel is sealed to form a hollow interlayer between the sun-facing panel and the bearing panel, the sun-facing panel is a honeycomb panel formed by a plurality of concave honeycombs, and a water inlet and a water outlet are arranged in the back portion of the bearing panel. By means of the honeycomb hole design, the effective illumination area of the solar thermal collector is improved by more than 1.8 times, and the solar radiation capability is improved. Sunlight radiates the inner wall of the concave honeycomb, and is almost absorbed completely in the way that the sunlight is absorbed, reflected and absorbed for multiple times.

The invention discloses an improved solar water heater which comprises a bottom frame. A motor base is welded to the front face of the bottom frame, a water pump is fixedly welded to the upper surface of the motor base, the rotor end of the water pump is sleeved with a water outlet pipe, a water pumping pipe is fixedly welded to the upper portion of the water pump, and the top end of the water pumping pipe communicates with the inner wall of a water storage tank. A solar heating plate is fixedly welded to the lower portion of the water storage tank, a heating pipe is fixedly connected to the lower portion of the solar heating plate, and the front face of the solar heating plate is fixedly welded to the top end of the water pumping pipe. Compared with a common tubular solar water heater and a flat-plate-shaped solar water heater, the water heater abandons a dispersed tubular light-absorbing solar panel, and under the condition of the same size, the effective illumination area of the solar panel of the solar water heater is larger, so that more heat is absorbed within the same time, the energy utilization rate is higher, the water boiling speed is higher, and the efficiency is higher.

The invention provides a solar energy light condensing transmitting device which is large in effective daylight area, high in light strength, long in transmitting distance, small in consumption and reduced in the generation cost, and a solar-thermal power generation system of the solar energy light condensing transmitting device. The solar energy furnace solar-thermal power generation system is composed of a solar energy furnace and a plurality of the solar energy light condensing transmitting device arranged around the solar energy furnace, each solar energy light condensing transmitting device comprises a large-caliber paraboloid reflector, a small-caliber paraboloid reflector is arranged above each large-caliber paraboloid reflector, a through mouth is formed in the center of each large-caliber paraboloid reflector, a round cylinder connected with the through mouth is arranged on the back surface of each large-caliber paraboloid reflector, a solar ray automatic tracking device is arranged on the outer wall of each round cylinder, a target tracking system is arranged on the outer wall of each round cylinder on the solar ray automatic tracking device, a plane mirror is arranged on each target tracking system, and the solar energy furnace comprises a transparent glass vacuum shell and a plurality of U-shaped solar-thermal converting pipes which are arranged inside the vacuum shell and evenly distributed.

The invention discloses a light collecting device and relates to the field of natural lighting for building applications. The present invention includes a light guide tube and a light collector assembly, the light collector assembly is fixedly installed on the upper end of the light guide tube, and is characterized in that the light collector assembly is in the shape of a square prism, and the light collector assembly is The composition includes the east light guide grid assembly, the metal skeleton, the west light guide grid assembly, the south light guide grid assembly, and the north light guide plate, the east light guide grid assembly, the west light guide grid assembly, Both the south light guide grid assembly and the north light guide plate are fixed on the metal frame. The angle of the light guide grid sheet designed in the present invention greatly optimizes the path of sunlight according to the sun's running track, and improves the collection rate of sunlight in different time periods, and the invention designs a movable light guide grid assembly, which is flexible through the angle adjustment device Adjusting the light guide grid assembly to the best matching angle improves the collection rate of sunlight in different seasons.

The invention discloses a potato cultivation method. The method includes the steps of soil preparation, fertilizer applying and field management. The soil preparation includes the steps that the ridge spacing ranges from 90 cm to 120 cm, the ridge height ranges from 18 cm to 20 cm, the row spacing ranges from 16 cm to 18 cm, and two rows of potatoes are planted in each ridge. The fertilizer for applying is a mixture obtained by evenly mixing fertilizer synergist and base fertilizer. The pesticide applied in field management is a mixture formed by mixing pesticide retarder and prevention-control medicament. It is proved by experiments that the potato cultivation method can promote a high yield of potatoes and lower pollution to the environment and has wide application prospects.