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Solar battery

IPC classes for russian patent Solar battery (RU 2293398):

H01L31/042 -

Another patents in same IPC classes:

Method and device for converting electromagnetic radiation and method for installing oblique reflectors / 2287873
Proposed method depends on reception of direct radiation from object by solar panels in-line disposed on base and radiation re-reflected from interline pairs of flat oblique reflectors at the same time optimizing electromagnetic radiation reception conditions while object is moving; this optimization is effected when base is motionless by synchronously reducing/enhancing angle of inclination of solar panels of first like planar reflectors in each interline pair to receiving plane at the same time synchronously enhancing/reducing mentioned angles of inclination of second like planar reflectors in each interline pair. In addition, angles of inclination of like planar reflectors in each pair are enhanced/reduced by reducing/enhancing width of its first like planar reflectors at the same time enhancing/reducing width of its second like planar reflectors with total width of first and second like planar reflectors in each interline pair being retained. Device for electromagnetic radiation conversion and method for mounting oblique reflectors incorporated in this device are given in invention specification.

Concentrating solar-electric generator / 2285979
Proposed solar generator module has at least one cellular-structure panel 1 incorporating front face sheet, rear face sheet, and cellular lattice in-between. Front sheet mounts alternating rows of solar cells 2 and wedge-shaped reflectors 3. The latter may be of developable type, for instance made of thin film stretched on stiff frame which do not cover solar cells 2 in folded condition. One of generator-module design alternates may have additional cellular-structure lattice attached to rear face sheet. At least one of face sheets is made of polymer incorporating high-heat-conductivity threads positioned in average perpendicular to longitudinal axis of rows of solar cells 2. Module may incorporate at least two hinged cellular panels folded along hinge whose reflectors 3, for instance non-developable ones, are alternating in folded condition without contacting each other. Panel mechanical design affords maintenance of uniform sun radiation distribution among all cells of generator module at small deviations from sun rays. Reflectors may be covered with aluminum layer or better silver one applied by vacuum evaporation and incorporating additional shield.

Solar photoelectric module and its manufacturing process / 2284075
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Section for composite solar module / 2281584
Proposed section designed for assembling high-power (up to 150 W) composite solar module that incorporates provision for fast and reliable connection of adjacent panels with frame section (without additional finishing) is made of stiff material and has ribs symmetrically disposed relative to its vertical axis to form two opposite slots on respective sides to secure edges at adjacent panels with photoelectric converters and opposite slots to receive fastening members such as self-tapping screws.

Solar power plant / 2280918
Proposed solar power plant has vertical shaft with azimuth turn drive that mounts solar battery provided with automatic azimuth turn drive system on one side and system for automatic turn of power plant from west to east, on opposite side; solar battery has two parts separated by vertical partition; both parts are differentially connected to clapper relay coil in automatic turn drive system.

Solar battery module / 2280296
Proposed solar battery module has photoelectric converters interconnected to form panel on transparent backing of nonmetal material and battery charge control device. Panel is secured on frame carrying rotary support on one end of its axis and rotary device with motor and extreme position locking sensor fixed in position on other end, as well as direct sun radiation sensor mounted on front end of panel, dissipated sun radiation, on rear end of panel, and storage battery. Optical axes of sensors are perpendicular to respective surfaces of panel and battery charge control device is provided, in addition, with peak load compensating device connected in parallel with battery and electrically connected to rotary device.

Solar battery / 2257643
Proposed solar battery has frame that may be made of carbon-filled plastic or any other materials of definite profile and is assembled of flat panels with uniformly disposed compartments accommodating modules; the latter have switching busses interconnected in series or in series-parallel and to thermal expansion bend of solar cells. These solar cells are attached to peripheral film substrate by means of rear glass plates. Substrate is made of reinforced film and has ribbon projections for securing module to frame. Built into ribbon projections are embedded parts in the form of conducting wire sections. Modules are secured to frame by means of threads fixed to embedded members. Adjacent solar cells are connected into electric circuit over module perimeter by connecting flexible switching buses to thermal expansion bend with embedded members.

Solar battery / 2250536
Proposed solar battery has panel with modules secured thereto by adhesive; these modules incorporate solar cells interconnected in series or in series-parallel with aid of switching buses. The latter are provided with thermomechanical expansion devices; shielding glass strip provided with flexible members of desired shape and size additionally glued to planar or curvilinear surface of frame is secured by means of adhesive to front surface of each solar cell. Inner space of flexible members is filled with sealing compound to form convex meniscus. Solar cells abut against flexible members and are fixed in position until sealing compound is fully polymerized. Switching buses with thermomechanical expansion devices, as well as shunting diodes are welded or soldered to rear contacts of solar cells in regions free from sealing compound. Thermomechanical expansion devices are disposed between rear end of solar cells and carrying surface of frame also in regions free from sealing compound. Solar battery is characterized in simplified design of switching system and in that battery mass is uniformly distributed over frame surface.

Solar battery / 2293398
Proposed solar battery has flat tubular frame with regularly disposed locations accommodating modules of solar cells whose magnetic torque is close to zero; these cells can be GaAs/Ge based and have optically transparent shielding plate on face end and shielding plate on rear end. They are interconnected into series or parallel circuits by means of conducting buses. Strings are fixed on face end of frame. Shielding plates installed on rear end are made of radiation-resistant foiled material in the form of boards whose metal-plating layer incorporates current-conducting pads and tracks. Each solar cell has current leads made in the form of buses connected to current-conducting pads of boards. Conducting buses interconnecting solar cells function to connect conducting pads of boards in adjacent solar cells; the latter are installed within module in tandem and are mechanically joined together by means of longitudinal flexible members adhered to rear plates and spaced apart through distance equal to that between their parallel strings; solar cells installed in parallel circuits of module are joined together to form minimal gaps by means of flat flexible clips. Module is fixed to strings by means of thread or wire.

Solar battery / 2297076
Proposed solar battery has frame with uniformly disposed locations and tightened net sheet in the form of orthogonally disposed strings and modules stitched to them. Modules have solar cells interconnected by means of conducting buses to form electric circuit and assembled into cell blocks. Each cell block may have two or more cells protected by means of single transparent plate attached to their rear and face sides, respectively. Solar cells are physically integrated within module by means of perforated film substrate inserted between rear plates and solar cells and attached to frame by stitching them at intersection points of their orthogonally disposed strings; the latter are spaced apart on frame through distance which is a multiple of geometric dimensions of cell blocks.

FIELD: electrical engineering; solar-to-electric energy conversion primarily for space engineering.

SUBSTANCE: proposed solar battery has flat tubular frame with regularly disposed locations accommodating modules of solar cells whose magnetic torque is close to zero; these cells can be GaAs/Ge based and have optically transparent shielding plate on face end and shielding plate on rear end. They are interconnected into series or parallel circuits by means of conducting buses. Strings are fixed on face end of frame. Shielding plates installed on rear end are made of radiation-resistant foiled material in the form of boards whose metal-plating layer incorporates current-conducting pads and tracks. Each solar cell has current leads made in the form of buses connected to current-conducting pads of boards. Conducting buses interconnecting solar cells function to connect conducting pads of boards in adjacent solar cells; the latter are installed within module in tandem and are mechanically joined together by means of longitudinal flexible members adhered to rear plates and spaced apart through distance equal to that between their parallel strings; solar cells installed in parallel circuits of module are joined together to form minimal gaps by means of flat flexible clips. Module is fixed to strings by means of thread or wire.

EFFECT: reduced size, enhanced mechanical endurance and power capacity, simplified design, facilitated manufacture and maintenance, minimized in-process loss.

3 cl, 3 dwg

The invention relates to electrical engineering, in particular to devices for converting the energy of light radiation into electrical energy, and is intended primarily for space applications.

Known solar battery (A.S. USSR №1614717, publ. in BI No. 9, 2003) on the method of manufacture of flexible modules SB, from the description which follows that the flexible modules are designed for use on SAT, designed in a modular format, with the carrier (reference) surface in the form of a flexible mesh diaphragm, mounted on the frame SAT. The module consists of solar cells, connected in series with the metal patch of the tire. The bends of the joints in the tires are in between the AOC. One edge of the solid tire that is located between two adjacent solar cell, connected to the front contact solar cell, and the other edge of the same tires with the back contact of the other SCS. Wire bus performs the parallel connection of the tires. On the front and back sides of each solar cell is installed protective glass plate.

The main disadvantages of the design of this SA are:

- complex technology of Assembly of the module is primarily due to the problem of positioning the glass plate relative to the edges of the connected solar cell and the need to create complex devices in the form of multiple cassettes;

- low re is antiprogestin, especially when replacing damaged or defective solar cell after gluing glass plates;

- remove damaged or defective solar cell of the module is associated with a complex, extremely manual process as the dismantling of the glass plates and switching on the adjacent solar cell, and then replace them on the new plate and the restoration of commutation.

Features common SAT in A.S. No. 1614717 and offer battery, the following:

- the use of the framework in the form of a frame;

- the use of optically transparent (glass) protective plates from the face of a solar cell.

Also known SB (patent No. 2234166, publ. 10.08.04), adopted for the prototype. In accordance with the above description of the invention SB consists of a frame with a stretched flexible mesh membrane (setupauto), which is equipped with a flexible solar cell modules connected to each other with metal tires and covered with front and back sides of the protective glass plates. And on the back side of the module at the edges of the glass plates that cover adjacent, serially connected solar cells, predominantly Ga-As/Ge system, installed the card from the film-foil dielectric with multiple, at least two holes located above the spaces between the solar cell and through the holes in the boards skipped the free ends of different sinot contacts interconnecting SCS and the ends of the tire connected metallisierung layer Board, and the dielectric layer Board is connected to the glass plates.

This construction has the following disadvantages:

- increased weight caused by the use of setpolicy;

- increased weight due to the fact that in order to ensure the strength of the connection between the card from the back plates required a significant area of adhesive bonding;

- increased mechanical vulnerability (fragility) of the rear glass plate;

- no distantsiruyutsa elements between neighboring chains SCS that require increased clearances and, as a consequence, the loss of useful space and power; parallel chains for the tires.

- each circuit SE is not samarapungavan on the magnetic moment and requires additional circuitry in the composition of the whole SB;

in SA there are no items bypass to protect from the shadows and cracks of a solar cell.

The characteristics of the prototype, in common with the characteristics of the proposed solar panels, the following:

- the skeleton in the form of a flat tubular frame with regular spaced cells and with installed modules;

each solar cell is pasted on the front side of the optically transparent plate and the back side protective plate;

- solar cells in the module are combined in series and parallel circuits conductive tires.

Technical result achieved in the proposed design SAT, consists of:

- weight reduction;

- high resistance to mechanical stimuli;

- increase capacity;

- forming a series circuit solar cell having a magnetic moment close to zero;

- structurally and technologically simple chain bypass;

- simplify technologically simple Assembly and repair SAT;

- the possibility of manufacturing a SB with thin solar cell based on GaAs/Ge with minimum technological losses.

Achieved above-mentioned technical result of the fact that the solar battery containing an armature in the form of a flat tubular frame with regularly spaced cells and dened in the size of the cell modules, consisting of solar cells with pasted on each of them with the front side of the optically transparent protective plate and protective plate from the back side, in addition, solar cells composed of modules are connected in serial or parallel chains for the tires to the frame from the front side stretched strings of elastic material, regularly spaced in accordance with the dimensions of the solar cells and the protective plate, installed from the rear side made of radiation-resistant foil material in the form of cards, mellisa the ith layer are formed of conductive pads and tracks, each solar cell is electrically connected to the current terminals, made in the form of tyres of conductive material that are electrically connected to conductive pads of circuit boards. In addition, conductive bus that combines solar cells in the module in serial or parallel circuit, electrically connect the conductive pad circuit Board adjacent solar cells, and sequentially installed solar cells in the module are mechanically interconnected longitudinal elastic elements attached to the back plates and a set distance from each other equal to the distance between them parallel strings, and solar cells mounted in a module in the parallel circuits are connected with education minimum clearances flat resilient clips attached to the back plates of the adjacent solar cells, the same module is attached to the strings of thread or wire through binding or primode longitudinal elastic elements to the intersection of the strings.

In addition, in the proposed SA solar cells can be made with integral diodes, and at the rear protective plates (boards) are additionally formed conductive pads and tracks are electrically connected through conductive of current terminals with integralnym diodes and using conductive bus connecting the solar cells, forming a shunt circuit of diodes electrically parallel circuit shunting the solar cell.

Also in the proposed SB longitudinal elastic elements can be made of resilient wires arranged symmetrically about the respective longitudinal chain of solar cells, electrically connected in electrical circuit with integral solar cells on one side of the module, that is, plus or minus.

The hallmarks of determining compliance with the proposed SA criteria of "novelty", the following:

the use of insulation radiation-resistant foil material as a protective back plate;

- use protective back plate as a Board to ensure the required commutation scheme SE on SAT;

- formation on the back of the plates (boards) circuit bypass SE to protect SB from the influence of shadows and damage SE;

- the use of elastic clips and elastic elements;

- manufacture of elastic elements of the wires with a view to their use for transmission of the generated current with simultaneous compensation of the magnetic moment;

connection of current terminals of the AOC with a protective back plate (Board) and inter-element switching a separate bus.

These conditions ensured the installation of modules on host string is instead setpolicy and achieve new weight quality and apply the AOC based on GaAs/Ge, achieving a new quality in specific energy parameters.

To substantiate the proposed design SAT the criterion of "inventive step" was the analysis of the known solutions in the literature. Distinguishing features of the proposed solutions in the literature were not found. Therefore, according to the authors, the proposed design of the SB meets the criterion of "inventive step".

A causal relationship between the features and the technical result is the following:

is weight reduction occurred due to the replacement setpolicy on the supporting strings, combining the functions of the rear protective plate and the circuit Board in a single element;

- improved resistance to mechanical stimuli by replacing the fragile glass plate on the rear of the solar cell on the non-fragile foil material (e.g., PCB), as well as through the organization of a shunt circuit integral diodes;

- increase power by reducing gaps;

- minimization of the magnetic moment due to the use of elastic elements as return lines;

- easy chain bypass due to the formation of PCB conductive pads and tracks, enables us simply to include integral diodes SE in the total chain the bypass;

- simplification of Assembly and repair of SB due to the galvanic connection of the current terminals of the AOC in its own back cover plate has simplified the technology of Assembly SAT and repair that is associated with the need to replace the corrupted SE;

- a separate manufacturing Assembly unit comprising: a solar cell with electrodes and protective plates, allows the use of SCS based on GaAs/Ge, requiring the conditions of welding of thin current terminals, for providing stability SAT to mechanical loads at the site of injection into orbit there is a possibility of switching the adjacent solar cell to produce tires with compensation curve required for this thickness.

The design of the proposed SA is depicted in figure 1, 2, 3. The proposed SB consists of a frame of the frame 1 in the form of flat panels 2 with regularly spaced cells 3 with a strained regularly in accordance with the dimensions applied solar cells 4 strings 5 and defined in the cell size 3 modules 6, consisting of solar cells 4 with integral diodes 7 with current terminals 8 of a thin conductive material, is secured to the front side of the optically transparent plates 9 in the size of the solar cell 4 and the back side plate of radiation-resistant foil material in the form of a circuit Board 10 made in the size of the solar cell 4. On the boards 10 of poligiros the layer formed of the conductive pad 11 and 19 and tracks 12 and 13, providing the necessary circuit switching modules in the General electrical network SAT.

The current terminals 8 SE 4 galvanically (welding or brazing) connected to respective pads 13 of the circuit Board 10. Connection SE 4 in electrical series or parallel, or series-parallel circuit is feasible using for tires or wires 14 with compensation Sieg 15, electrically connected to conductive pads 13 adjacent boards 10. For mutual positioning and securing the maximum possible gap between the solar cell 4 in the adjacent series circuits between them by gluing are thin elastic staples 16. For mechanical integration SE 4 module 6 and for attaching the module 6 to the supporting strings 5 of the frame 1 to cards 10 are bonded elastic elements 17, for which the modules 6 by means of threads 18 or wire sewn to the crosshairs of 5 strings. Elastic elements 17 can be made of wires with sufficient elasticity. In this case, they can be used for transmission of the generated current in the reverse chain. If both wires are located symmetrically with respect to the solar cells 4 in a series circuit, is almost complete compensation of the magnetic moment of the corresponding chain.

On the boards 10 can be formed of conductive area of the key 19 and the track 13 to provide a switching circuit integral shunt diodes 7, highly resistant to mechanical damage with minimal weight loss.

Specific example SAT

The frame 1 may be made in the form of a frame from carbon fiber tubes with strained strings of 5 arimidex threads. Used arsenide-gallium SE 4 production company RWE Space Solar Power GmbH (Germany) type GAGET2-ID2L with integral diodes 7. To them welded to the current terminals 8 of the tire thickness of 16 μm. The front protective plate 9 made of glass K-208, and the back plate from the foil material MI 1222.8-1-35-02, 1st class. THE 2296-005-00213060-96, of the same material made of clips 16. Longitudinal elastic elements made of wires in the polyimide insulation MS-15. Proshivka module 6 to the 5 strings made animalname threads 18.

1. Solar battery containing an armature in the form of a flat tubular frame with regularly spaced cells and dened in the size of the cell modules, consisting of solar cells with pasted on each of them with the front side of the optically transparent protective plate and protective plate from the back side, and the solar cells in the module are combined in a serial or parallel circuit conductive tires, characterized in that on the frame from the front side stretched strings of elastic material, regularly spaced in accordance with the envelope and solar cells, and the protective plate, installed from the back side, made of radiation-resistant foil material in the form of cards, gas metallizing layer formed by conductive pads and tracks, with each solar cell is electrically connected to the current terminals, made in the form of tyres of conductive material that are electrically connected to conductive pads of circuit boards, in addition, conductive bus that combines solar cells in the module in serial or parallel circuit, electrically connect the conductive pad circuit Board adjacent solar cells, and sequentially installed solar cells in the module are mechanically interconnected longitudinal elastic elements, glued to the back plates and a set distance from each other equal to the distance between them parallel strings, and solar cells mounted in a module in the parallel circuits are connected with education minimum clearances flat resilient clips attached to the back plates of the adjacent solar cells, the same module is attached to the strings of thread or wire by binding or primode longitudinal elastic elements to the intersection of the strings.

2. Solar battery according to claim 1, characterized in that the solar the elements are made with integral diodes, and at the rear protective plates (boards) are additionally formed conductive pads and tracks are electrically connected through conductive of current terminals with integral diodes and using for tires with adjacent solar cells, forming a shunt circuit of diodes electrically parallel circuit shunting the solar cell.

3. Solar battery according to claim 1, characterized in that the longitudinal elastic elements made of resilient wires arranged symmetrically about the respective longitudinal chain of solar cells, electrically connected in electrical circuit with integral solar cells on one side of the module, i.e. plus or minus.