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34results about How to "Increase light receiving surface" patented technology

Solar water heater

The invention provides a solar water heater which comprises a framework, a heat-preservation water tank and a heating pipe. The heat-preservation water tank and the heating pipe are arranged on the upper portion of the framework, the heating pipe is located on the lower portion of the heat-preservation water tank, and the inside of the heating pipe is communicated with a cavity inside the heat-preservation water tank. The solar water heater further comprises an upper light reflection plate hinged to the heat-preservation water tank and side light reflection plates hinged to the two sides of the framework and distributed symmetrically. The area of the light receiving face of the solar water heater is greatly increased, the solar water heater can produce more heat, water can be heated to reach a higher temperature, and the solar water heater can be used in winter. The angle of the upper light reflection plate and the angles of the side light reflection plates can be automatically adjusted according to the actual illumination angle of sunlight, heating efficiency is higher, and the efficiency of the whole solar water heater is higher.
Owner:TAICANG ANTARCTIC WIND ENERGY EQUIP

Variable band gap double-side transparent electrode thin film solar battery

The invention discloses a variable band gap double-side transparent electrode thin film solar battery which comprises a transparent substrate, wherein one side of the transparent substrate is provided with a first transparent conductive electrode; a photoelectric conversion unit 1 is arranged above the first transparent conductive electrode, and a second transparent conductive electrode is arranged above the photoelectric conversion unit 1; the other side of the substrate is provided with a third transparent conductive electrode; and a photoelectric conversion unit 2 is arranged on the third transparent conductive electrode, and a fourth transparent conductive electrode is arranged on the photoelectric conversion unit 2. The photoelectric conversion unit 1 and the photoelectric conversion unit 2 have different band gap distributions so as to correspond to different spectral response ranges and improve the photoelectric conversion efficiency. Meanwhile, due to the interaction of the upper photoelectric conversion unit and the lower photoelectric conversion unit, the conversion efficiency of the photoelectric conversion units is improved to a large extent. The invention ensures that the solar battery can accept light by double sides, thereby improving the light acceptance area of the solar battery in multiples. The structural change can ensure that the horizontal installation generating capacity of the solar battery is increased by 10 percent, and the vertical installation generating capacity is increased by 34 percent.
Owner:刘莹

Concave surface array graphene-metal heterojunction photoelectric detector

The invention discloses a concave surface array graphene-metal heterojunction photoelectric detector which can increase the light receiving surface, increase the light absorption of graphene and avoidthe damage to the graphene in the transfer process. The photoelectric detector comprises a substrate, wherein an insulating layer, a growth layer and a graphene layer are sequentially arranged on thesubstrate from bottom to top; the substrate is provided with grooves which are distributed in an array mode and are sunken downwards; a first convex surface matched with the groove is arranged on theinsulating layer; a second convex surface is arranged on the growth layer; a third convex surface is arranged on the graphene layer; an antireflection layer is arranged on the inner wall of the innergroove of the third convex surface of the graphene layer; and a wave-shaped interdigital high work function electrode and a wave-shaped interdigital low work function electrode are respectively arranged at two sides of the inner groove of the third convex surface on the graphene layer. The photoelectric detector is small in size, high in integration level, is wide in recognition range and the like.
Owner:GUANGXI NORMAL UNIV

Novel solar water heater

The invention discloses a novel solar water heater. The novel solar water heater comprises a cylindrical water storage tank, a solar heat collector, a water inlet and outlet pipe and a supporting frame; the novel solar water heater further comprises a protection roller shutter, a rainwater sensor and an STM8S single-chip microcomputer; the bottom of the water storage tank is provided with protrusions connected with the solar heat collector and air exhaust openings; the cross section of the supporting frame is of an acute triangle structure, and the supporting frame is composed of support front legs, support back legs and a pressing plate; the protection roller shutter comprises a rolling shaft, a driving motor and a protection curtain; the STM8S single-chip microcomputer is arranged outside the water storage tank and is electrically connected with the driving motor, and the rainwater sensor is arranged above the pressing plate and is electrically connected with the STM8S single-chip microcomputer; and when the rainwater sensor senses rainwater, the driving motor is stated by the STM8S single-chip microcomputer, the rolling shaft is driven by the driving motor to roll, and therefore the free end of the protection curtain downwards stretches along the solar heat collector until a first magnet and a second magnet on the protection curtain are attached. The novel solar water heater is simple in structure, reasonable in design and long in service life.
Owner:CHENGDU ANGDIJIA TECH CO LTD

T-type top electrode back-reflection thin film solar cell

The invention discloses a T-type top electrode back-reflection thin film solar cell. A plurality of stripe-shaped ribs made of the same material as a transparent top electrode are formed on the lower surface of the transparent top electrode, so that the top electrode locally forms a T-type structure; the lower surfaces of a P-type amorphous silicon thin film, an intrinsic amorphous silicon thin film, an N-type amorphous silicon thin film and a transparent conductive transition film below the ribs are projected downward to form stripe-shaped bumps; and the contact surface between a bottom electrode at a corresponding position and the transparent conductive transition film is provided with stripe-shaped curved reflection surfaces which are in one-to-one correspondence with the ribs. The top electrode of the T-type top electrode back-reflection thin film solar cell extends into thin films, so that the current collection capacity of an electrode is improved; film materials subsequently deposited on the electrode form the curved bumps, so that the area of the thin film cell is increased, and the light receiving surface of the cell is increased; the metal bottom electrode has a back-reflection surface with a concave mirror structure, so that the reflected light utilization of the cell is increased; and therefore, the light adsorption and utilization of the cell are improved, and the conversion efficiency of the cell is further improved.
Owner:NANTONG UNIVERSITY

Optical element and radiation detector using the same

A radiation detector comprising three optical members having their light incident end faces (12a, 14a, 16a) arranged in almost the same plane, a scintillator mounted on the light incident end faces (12a, 14a, 16a) of the optical members, a plurality of CCDs for picking up optical images output from light outgoing end faces (12b, 14b, 16b) of the optical members and a plurality of light guiding optical members for guiding the optical images output from the light outgoing end faces (12b, 14b, 16b) of the optical members to the CCDs, wherein the optical members are securely bonded together with a clearance of 10-15 um by an adhesive that has a light adsorbin characteristic, and a protective film is provided over the scintillator.
Owner:HAMAMATSU PHOTONICS KK

Bus station

The invention provides a bus station. The bus station comprises a bus shelter, the bus shelter comprises a support frame and a sun shield, the support frame or the sun shield is provided with a storage battery and a control module, the upper end surface of the sun shield is fixedly connected with a first solar cell panel and slide rails, a second solar cell panel is slidably connected between the two slide rails, the first solar cell panel and the second solar cell panel are arranged in parallel, the sun shield is also provided with a driving assembly, the driving assembly, the first solar cell panel and the second solar cell panel are electrically connected with the storage battery, and the first solar cell panel and the second solar cell panel are in communicating connection with the control module. Through arrangement of the slide rail, the second solar cell panel is enabled to extend from the bus shelter, the light receiving surfaces of the solar cell panels can be substantially increased, the generating capacity is substantially increased, electric power is sufficient, and no burden is caused to a commercial power grid.
Owner:FUJIAN SPIRITFOG ENVIRONMENT SCI & TECH CO LTD

Photon shutter device

PendingCN108983334AEasy maintenanceAchieve grazing incidenceOptical elementsLight beamOptoelectronics
The invention provides a photon shutter device, and the device comprises an absorption main body, wherein the interior of the absorption main body is provided with a light hole and a composite hole, which are used for the passing of two light beams of the composite light beams entering the absorption main body; a water cooling circulation system; a plurality of collimating devices; at least one temperature detection device. The light hole is a rectangular through hole. The composite hole is provided with a light passing part located at the lower part, and a light blocking part located at the upper part. The light passing part is a left-right through channel, and the light blocking part is a wedge-shaped channel, wherein the width of the wedge-shaped channel gradually decreases in the traveling direction of a light beam. The tail end of the light blocking part is provided with an absorption light blocking plate. The setting of the light hole and the composite hole enables the device toachieve a purpose that the application of one light beam is not affected while the device achieves the light passing and blocking control of the other light beam in the composite light beams with a super-small inclined angle.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI

Mixed vehicle roof

The invention discloses a mixed vehicle roof which comprises a vehicle roof body. An extensible solar cell system is fixedly arranged at the top of the vehicle roof body and comprises a shell, solar cells, extensible mechanisms and a control device, an upper solar cell is arranged at the top of the shell, front, rear, left and right solar cells are arranged in the shell, front, rear, left and right extensible mechanisms are arranged on the front, rear, left and right solar cells respectively, and each extensible mechanism is electrically connected with the control device and controlled by the same; the top of the vehicle roof body and the shell of the extensible solar cell system are of an integral structure. The vehicle roof body and the extensible solar cell system are connected to form the integral structure to form the mixed vehicle roof. The mixed vehicle roof has the advantages of reasonable design, needlessness of single mounting, few production procedure, compact structure, supportiveness of manual or remote control, large light receiving area of the solar cells due to contractive structure.
Owner:DONGYING WISCLEAR SOLAR TECH

Solar cell and manufacture method thereof

The invention discloses a solar cell which comprises a semiconductor substrate, an emitter layer, at least one first electrode, at least one second electrode and a dielectric layer, wherein the semiconductor substrate is provided with a first surface, a second surface opposite to the first surface as well as at least one through channel penetrating through the first surface and the second surface; the emitter layer is formed on the first surface, the second surface and the through channel of the semiconductor substrate; a pn junction is formed between the semiconductor substrate and the emitter layer; the first electrode is formed on the through channel, the first surface and the second surface and is contacted with the emitter layer; the second electrode is formed on the second surface and electrically connected with the semiconductor substrate; the dielectric layer is formed in the through channel and located between the emitter layer and the first electrode to isolate the first electrode from the pn junction, so that the conversion efficiency of the solar cell is increased.
Owner:MOSEL VITELIC INC

Solar distillation unit and distillation method

The invention discloses a solar distillation unit and a distillation method. The solar distillation unit comprises a water drawing cavity, an evaporation and condensation cavity and a solute-containing water cavity which are sequentially arranged from left to right. The upper ends of the evaporation and condensation cavity and the solute-containing water cavity are connected with the bottom of a sunlight heat absorption device. Hydrophilic material layers which are communicated with each other are arranged between the upper end of the evaporation and condensation cavity and the bottom of the sunlight heat absorption device and in the solute-containing water cavity. A cavity body of the evaporation and condensation cavity is filled with gas of which the molar mass is smaller than that of water molecules. A water drawing device is arranged in the water drawing cavity, the left ends of the hydrophilic material layers are communicated with the water drawing device, and a through hole formed in the left side wall of the water drawing cavity is connected with the output right end of a planar fluorescent condenser. The lower end of the evaporation and condensation cavity is connected witha pipeline for outputting condensate. The water drawing device in the distillation unit is optimized, and efficient distillation is achieved; and large-scale production is facilitated.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

A push-type intelligent laundry drying device with priority lighting

The invention relates to a push type intelligent clothes hanging device with preference natural lighting functions. The push type intelligent clothes hanging device comprises two hollow clothes hanging rods and at least one third rod. The clothes hanging rods are arranged at intervals, a plurality of stepper motors are arranged in the clothes hanging rods, and a first lead screw which is longitudinally arranged is fixedly connected with the lower end of each stepper motor; a sleeve is fixedly connected with the lower end of each lead screw, rectangular open slots are arranged at the lower ends of the lead screws, and cotton strips are fixed to two ends of each open slot; the clothes hanging rod arranged on the outer side of the push type intelligent clothes hanging device is a first rod, and the clothes hanging rod arranged on the inner side of the push type intelligent clothes hanging device is a second rod; second lead screws are fixedly connected to the upper ends of the stepper motors in the first rod, and sliders are connected with the left end and the right end of each second lead screw and are mounted in a slide rail on the inner top wall of the corresponding clothes hanging rod; a plurality of light sensors which face the first rod and correspond to the corresponding stepper motors are arranged on the outer surface of the second rod; the third rods are provided with processors with built-in timing chips, and the processors are electrically connected with all the stepper motors and the light sensors.
Owner:FUYANG WANRUI ELECTRONICS LOCKS CO LTD

Fixed single-plate type light reflection and condensation solar energy heat collection power generation device

The invention relates to a light reflection and condensation solar energy heat collection power generation device, which is a fixed single-plate type light reflection and condensation solar energy heat collection power generation device used for a central air conditioning system. The device includes a main frame, a heat collection tube support fixedly connected with the main frame, a heat collection tube and a light reflection and condensation mechanism, and is characterized in that two sides or one side of the heat collection tube is fixedly connected with solar cell panels in parallel. The device mainly solves the problem that using efficiency of a (vacuum) heat collection tube-mirror surface reflector combined solar energy acquisition device in spring and autumn is not high; and reduceswaste caused when reflection of the mirror surface reflector is focused on the (vacuum) heat collection tube and deviation occurs in reflection focus; and reduces a mechanical failure rate.
Owner:西安立乐行环保科技有限公司

Photovoltaic wind energy small generator

The invention discloses a photovoltaic wind energy small generator. The photovoltaic wind energy small generator comprises a power generation base, a generator, an impeller and a guide tail; the impeller comprises a wheel shaft and multiple blades; photovoltaic cell films are attached on the blades; the wheel shaft is coaxially fixed on a rotating shaft of the generator; connecting bases corresponding to the blades one to one in number are arranged on the shaft surface of the wheel shaft; connecting parts of the blades are mounted on the connecting bases; the side edges of the blades are hinged with supplementing pieces; photovoltaic cell films are also attached on the supplementing pieces; a control panel is fixed at the upper part of the generator; and the control panel is in communication connection with hinge shaft parts of the supplementing pieces and connecting shafts of the blades. The photovoltaic wind energy small generator can effectively realize increase of the lighting rate through a mode of overturning the blades and the supplementing pieces in the photovoltaic power generation process through a mode of rotating the supplementing pieces and the blades.
Owner:温州华志宇强科技有限公司

Stereo cultivation rack for flower cultivation

The invention discloses a stereo cultivation rack for flower cultivation. The stereo cultivation rack comprises a conical rack body comprising an upper beam and a lower beam, and is characterized in that rotary openable and closable planting rack groups are arranged on the left side and the right side of the conical rack body; each rotary openable and closable planting rack group comprises two vertical posts, a left-and-right opening and closing guide rail, a front-and-back moving guide rail, a rotating supporting post and a plurality of planting layers; each planting layer consists of two planting units adopting the same structure; positioning mechanisms are arranged at the bottom of each rotating barrel and at the bottom of a junction of the two planting units in each layer respectively; a supporting mechanism is further arranged between the two corresponding positioning mechanisms. The stereo cultivation rack can achieve multi-surface light irradiation to ensure adequate sunlight so as to improve the plant growth uniformity, and is convenient to manage and operate; in addition, the stability in the rotating process can be ensured and the service cycle of the whole stereo cultivation rack can be prolonged.
Owner:句容靖昌生态农业有限公司

Three-dimensional cultivation frame for flower cultivation

The invention discloses a stereo cultivation rack for flower cultivation. The stereo cultivation rack comprises a conical rack body comprising an upper beam and a lower beam, and is characterized in that rotary openable and closable planting rack groups are arranged on the left side and the right side of the conical rack body; each rotary openable and closable planting rack group comprises two vertical posts, a left-and-right opening and closing guide rail, a front-and-back moving guide rail, a rotating supporting post and a plurality of planting layers; each planting layer consists of two planting units adopting the same structure; positioning mechanisms are arranged at the bottom of each rotating barrel and at the bottom of a junction of the two planting units in each layer respectively; a supporting mechanism is further arranged between the two corresponding positioning mechanisms. The stereo cultivation rack can achieve multi-surface light irradiation to ensure adequate sunlight so as to improve the plant growth uniformity, and is convenient to manage and operate; in addition, the stability in the rotating process can be ensured and the service cycle of the whole stereo cultivation rack can be prolonged.
Owner:句容靖昌生态农业有限公司

Pushing intelligent clothes airing device capable of adjusting lighting angle according to gravity

The invention relates to a pushing intelligent clothes airing device capable of adjusting the lighting angle according to the gravity, which comprises two clothes airing rods which are in a hollow shape and are arranged separately, wherein a plurality of stepping motors are arranged in the clothes airing rods, and the lower end of each stepping motor is fixedly connected with a first screw rod arranged in a longitudinal direction; a sleeve is fixedly connected at the lower end of each screw rod, a rectangular opening groove is arranged at the lower end of each screw rod, and two ends of the opening groove are respectively fixed with a cotton sliver; the clothes airing rod arranged at the outer side is a first rod body, and the clothes airing rod arranged at the inner side is a second rod body; the upper end of the stepping motors in the first rod body is fixedly connected with a second screw rod, the left end and right end of the second screw rod are respectively connected with a sliding block, and the sliding block is arranged in the sliding rail on the inner top wall of the clothes airing rod; a plurality of light sensors facing towards the first rod body and corresponding to thepositions of the stepping motors are arranged on the outer surface of the second rod body; the clothes airing device also comprises at least one third rod body which is provided with a processor provided with a built-in timing chip, and the processor is electrically connected with all the stepping motors and the light sensors respectively.
Owner:山东万物生机械技术有限公司

Push type intelligent clothes hanging device with preference natural lighting functions

The invention relates to a push type intelligent clothes hanging device with preference natural lighting functions. The push type intelligent clothes hanging device comprises two hollow clothes hanging rods and at least one third rod. The clothes hanging rods are arranged at intervals, a plurality of stepper motors are arranged in the clothes hanging rods, and a first lead screw which is longitudinally arranged is fixedly connected with the lower end of each stepper motor; a sleeve is fixedly connected with the lower end of each lead screw, rectangular open slots are arranged at the lower ends of the lead screws, and cotton strips are fixed to two ends of each open slot; the clothes hanging rod arranged on the outer side of the push type intelligent clothes hanging device is a first rod, and the clothes hanging rod arranged on the inner side of the push type intelligent clothes hanging device is a second rod; second lead screws are fixedly connected to the upper ends of the stepper motors in the first rod, and sliders are connected with the left end and the right end of each second lead screw and are mounted in a slide rail on the inner top wall of the corresponding clothes hanging rod; a plurality of light sensors which face the first rod and correspond to the corresponding stepper motors are arranged on the outer surface of the second rod; the third rods are provided with processors with built-in timing chips, and the processors are electrically connected with all the stepper motors and the light sensors.
Owner:FUYANG WANRUI ELECTRONICS LOCKS CO LTD

Solar cell module installation bracket and installation method

The invention provides an installing bracket for solar cell module, and the installing bracket comprises a first support plate and a second support plate; the first support plate is connected to the second support plate; the first support plate is higher than the second support plate on height; a first installing part supporting the solar cell module is formed at the top end of the first support plate and a second installing part supporting the adjacent solar cell module is formed at the top end of the second support plate. A first adjusting hole is formed in the first support plate and a second adjusting hole matching with the first adjusting hole is formed in the second support plate. The installing bracket for solar cell module comprises the first support plate and the second support plate, and the first support plate is higher than the second support plate on height, so that the installing bracket for solar cell module has high-order position installing point and low-order position installing point for dual purpose, the cost of the bracket material is greatly reduced and the adjusting solar cell modules can be installed in high-low dislocation mode for raising the light receiving surface for the solar cell.
Owner:NANTONG QIANGSHENG PHOTOVOLATIC TECH

A T-shaped top electrode back reflective thin film solar cell

The invention discloses a T-type top electrode back-reflection thin film solar cell. A plurality of stripe-shaped ribs made of the same material as a transparent top electrode are formed on the lower surface of the transparent top electrode, so that the top electrode locally forms a T-type structure; the lower surfaces of a P-type amorphous silicon thin film, an intrinsic amorphous silicon thin film, an N-type amorphous silicon thin film and a transparent conductive transition film below the ribs are projected downward to form stripe-shaped bumps; and the contact surface between a bottom electrode at a corresponding position and the transparent conductive transition film is provided with stripe-shaped curved reflection surfaces which are in one-to-one correspondence with the ribs. The top electrode of the T-type top electrode back-reflection thin film solar cell extends into thin films, so that the current collection capacity of an electrode is improved; film materials subsequently deposited on the electrode form the curved bumps, so that the area of the thin film cell is increased, and the light receiving surface of the cell is increased; the metal bottom electrode has a back-reflection surface with a concave mirror structure, so that the reflected light utilization of the cell is increased; and therefore, the light adsorption and utilization of the cell are improved, and the conversion efficiency of the cell is further improved.
Owner:NANTONG UNIVERSITY

Pipeline-type photobioreactor for scale culture of microalgae

ActiveCN103602579BSolve the capacity limitation defectMaximize specific surface areaBioreactor/fermenter combinationsBiological substance pretreatmentsUltrasound attenuationHigh density
The invention provides a pipeline-type photobioreactor for scale culture of microalgae. The pipeline-type photobioreactor comprises a gas exchange tank (1), a process pump (8), a CO2 replenishing system and a photosynthesis pipeline array (9). According to the pipeline-type photobioreactor, the specific surface area of the reactor is effectively increased, the contradiction between increase of volume of a unit area of culture solution and attenuation of illumination of the culture solution in an existing pipeline reactor is effectively solved, the light energy utilization rate of the microalgae and the yield can be effectively increased, and the purposes of rapid, large-scale and high-density culture of the microalgae are achieved.
Owner:QINGDAO XUNON BIOLOGICAL ENG

Solar cell

The present invention provides a solar cell. A plurality of stripe ribs having the same materials are made at the lower surface of a transparent top electrode to allow the top electrode to partly form a T-shaped structure, the lower surfaces of a P-shaped amorphous silicon thin film, an intrinsic amorphous silicon film, an N-type amorphous silicon thin film and a transparent conductive transition film at the lower portions of the ribs are bulged downwards to form stripe bumps, and the contact surface of a bottom electrode at the corresponding position and the transparent conductive transition film has stripe arc reflection surfaces being in one-to-one correspondence with the ribs. The top electrode penetrates into the thin film to improve the collection ability of electrode to current; thin-film materials deposited on the electrodes form arc bumps to add the area of a film cell and increase the illuminated face of the cell; and the metal bottom electrode has a back reflection surface with a concave mirror structure to increase utilization of reflection light by the cell so as to improve light absorption and utilization by the cell and further improve the cell conversion efficiency.
Owner:NANTONG UNIV

Charging vehicle shield of photovoltaic power generation

The invention discloses a charging vehicle shield of photovoltaic power generation. The shield includes a framework, shielding cloth, a charger and multiple flexible-film solar panels; the framework supports the shielding cloth, the flexible-film solar panels are evenly distributed on the upper surface of the shielding cloth in a wave shape, the charger is connected with the solar panels, and a reflecting material coating is arranged on the upper surface of the shielding cloth. By utilizing the flexible-film solar panels to conduct photovoltaic conversion, the solar energy is converted into the electric energy; since the flexible-film solar panels are arranged in the wave shape, a larger light receiving surface is provided under the equal area of the shielding cloth; since the reflecting material coating is arranged on the upper surface of the shielding cloth, the shielding cloth can reflect most of sunlight, the sunlight absorption of the shielding cloth is reduced, and therefore a vehicle body can be shielded, and more solar energy can be effectively utilized at the same time. The vehicle shield of the structure above can serve as an automotive part for use.
Owner:FOSHAN UNIVERSITY

A curved bottom electrode thin film solar cell

The invention provides a cambered bottom electrode thin film solar cell comprising metal top electrodes, a transparent conductive thin film, a P type amorphous silicon thin film, an intrinsic amorphous silicon thin film, an N type amorphous silicon thin film, a metal bottom electrode and a substrate, which are connected in sequence from top to bottom, wherein a plurality of conductive metal flanges are arranged on the upper surface of the metal bottom electrode, the N type amorphous silicon thin film, the intrinsic amorphous silicon thin film, the P type amorphous silicon thin film and the transparent conductive thin film above the flanges are provided with upward protruding strip-shaped bulges, the metal top electrodes are arranged at the two sides of the strip-shaped bulge of the transparent conductive thin film. According to the cell provided by the invention, the bottom electrode is provided with cambered or approximate cambered flanges, and the flanges stretch into the thin films to improve the current collection ability of the electrode; the successively deposited thin film material on the bottom electrode forms cambered bulges at positions corresponding to the flanges to increase the area of the thin film cell and increase the illuminated face of the cell; and the bulges of the thin film form a convex lens to collect the incident light so as to improve the light absorption and utilization of the cell, thereby further improving the conversion efficiency of the cell.
Owner:NANTONG UNIVERSITY

Double printing method of front electrode of N-type battery

The invention relates to the technical field of battery printing, in particular to a double printing method of a front electrode of an N-type battery. The double printing method comprises the following steps: (1) printing silver aluminum paste as a first layer of a boron expansion surface of an N-type crystalline silicon solar battery; (2) drying the first layer of the boron expansion surface of the N-type crystalline silicon solar battery; (3) printing silver paste as a second layer of the boron expansion surface of the N-type crystalline silicon solar battery; and (4) co-sintering the firstlayer and the second layer of electrodes on the boron expansion surface of the N-type crystalline silicon solar battery to form an electrode. According to the invention, by virtue of the double printing method, the first layer of silver aluminum paste can reduce the contact resistance of gold and silicon, and the second layer of silver electrode can reduce the line resistance of the electrode; meanwhile, the double printing method can break through a ceiling with high single screen printing aspect ratio, can effectively improve the aspect ratio of electrode grid lines, can not only increase the light receiving surface of the battery, but also can reduce the overall line resistance of the grid electrode, thereby greatly improving the photoelectric conversion efficiency of the battery.
Owner:北京市合众创能光电技术有限公司

Rotating and opening three-dimensional planting frame for ecological agriculture

The invention discloses a rotary open-close three-dimensional planting frame used for ecological agriculture. The planting frame comprises a conical frame body. The conical frame body comprises an upper beam and a lower beam. Rotary open-close planting group frames are arranged on the conical frame body and are on the left side and right side of the conical frame body. Each rotary open-close planting group frame comprises two stand columns, left and right open-close guiding rails, front-back moving guide rails, rotary stand columns, and a plurality of layers of planting layers. The left and right open-close guiding rails are arranged between the upper beam and the lower beam. Two stand columns are respectively slidably connected with the left and right open-close guiding rails, and the two stand columns are respectively placed on two ends of the left and right open-close guiding rails. The plurality of layers of planting layers are arranged side by side from up to bottom between the two stand columns. The plurality of layers of planting layers are supported and connected through rotating braces. The bottom of the rotating brace is slidably arranged in the front-back moving guide rail. The rotary open-close three-dimensional planting frame can realize multi-surface light irradiation, ensure sufficient sunlight, improve uniformity of plant growth, and provides convenience for management and operation.
Owner:句容市空凤来仪生态农业有限公司
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