DE2160345C2

DE2160345C2 - Flexible solar generator

Info

Publication number: DE2160345C2
Application number: DE2160345A
Authority: DE
Inventors: Dieter Dipl.-Ing. 2000 Wedel Ruesch
Original assignee: Licentia Patent Verwaltungs GmbH
Current assignee: Licentia Patent Verwaltungs GmbH
Priority date: 1971-12-06
Filing date: 1971-12-06
Publication date: 1973-12-06
Also published as: DE2160345B1

Description

¹I ¹ I.

Zeichnung mit 6 bezeichnete Wickeltrommel aufwik- dann den ^Vo^;^ ΐ*_ποεη in der festigkeitsmäkeln zu können, muß dieser genügend flexibel sein tender. ^H*X^bc™%™£™_cg"_nL _dcr Verbinder He- und den dabei auftretenden Beanspruchungen stand- ß»g ^^"^ITS^allelveiDrawing with 6 designated winding drum up then the ^Vo ^; ^ ΐ * _ποεη in the Festigkeitsmäkel, this must be flexible enough tender. ^H * X ^bc ™% ™ £ ™ _c g " _n L _dcr connector He- and the stresses arising from it withstand- ß» g ^^ "^ ITS ^ allelvei

halten können.can hold.

Die erforderliche Festigkeit die>er flexiblen Solargeneratoranlage wird bezüglich des Trägermaterials
daduich erreicht, daß das als Träger dienende aufrollbare Substrat aus einer mit Glasseide 2 beklebten
Polyimidfolie I besteht. Als Kleber sind dabei einige
für Weltraumbedingungen geeignete, d.h. beispiels- io auf. .,,-.. _A ·,..,, ;„ ,wThe required strength of the flexible solar generator system is related to the carrier material
daduich achieved that serving as a carrier rollable substrate made of a glass fiber 2 glued
Polyimide film I consists. There are a few as glue
suitable for space conditions, ie for example io. . ,, - .. _A ·, .. ,,; “, w

weise bis 10-'iTorr und im Temperaturbereich von Eine ausreichende Flexibilität, und zwar in derwise to 10-Torr and in the temperature range of sufficient flexibility, namely in the

- 180 bis + 100° C beständige dünnflüssige Kleber ^A .■•-»i-.i-m,,,,.. wird be. diesen durch die Vtrb.ngewählt worden. Als besonders günstig haben sich
stark lösuiigsmittelhaltige Polyester-Kleber gezeigt,- 180 to + 100 ° C resistant thin liquid adhesive ^A. ■ • - »i-.im ,,,, .. will be. this has been chosen by the Vtrb.n. Have proven to be particularly cheap
strongly solvent-based polyester adhesives shown,

mit denen eine gute Benetzung des Glasseidengewe- 15 ten d" Zeilen J ⁿⁱ _Schweißung, Klebungwith which a good wetting of the glass _silk ^{fabric is d ″ lines J ni} welding, gluing

bes und gute Verklebungen des Gewebes mit der Poly- der Zelle durch Lotung ^ ^, _be£bes and good adhesion of the tissue to the poly- the cell by plumbing ^ ^, _be £

imidfülie erreicht werden. Die Beklebung der Poly- e.nem elektnsch l»^^ _{beiden Ze}nenquer-imide can be achieved. The pasting of the poly- e.nem elektnsch l »^^ _both cross-zen

imidfolie mit der Glasseidenlage erfolgt dabei in der ist, sondern daßI im «er ^. _en imide film with the fiberglass layer is made in the is, but thatI in the «er ^. _en

Weise, daß zunächst die Glasseid anlage auf die Po- kanten 8 ein unverbundener ad ^ __ ^ ^ ^._m Way that first the glass silk system on the po- edge 8 is an unconnected ad ^ __ ^ ^ ^. _m

lyimidfolie gelegt wird und anschließend der Kleber *■
in einer sehr dünnen Schicht aufgetragen wird. Nach
dem Aushärten des Klebers ergibt sich ein weiterhin und
ausreichend flexibles, jedoch in seinen Festigkeitsei- derslyimid film is placed and then the adhesive * ■
is applied in a very thin layer. To
the hardening of the adhesive results in a further and
sufficiently flexible, but in its strength silk

genschaften erheblich verbessertes Substrat. An der , _u„, properties significantly improved substrate. At the, _u ",

Stelle der obengenannten Kleber können für Tempe- ,5 an der Unterste der ^ ^Dc;"^l,f_u'_{r noch der ZW1}. raturbereiche von - 60 bis + 260^C lösungsmittel- d.e Erzielung einer ^Kru™3™A_bächnitt übrighaltige Silikone verwendet werden, mit denen, wie sehen den /.eilen a _{dieser fn},. oben erwähnt, gute Bindungen zwischen dem Glasge- ble.ben^Wie «jJjeJP^g^¹?^⁸ _{um die bei} dem webe und dem Polyimid erzielt werden. krummbare Abschm ^nic™ *_m' _{zu erzeu}gen. Auf dem in der oben geschilderten Weise herge- 30 Aufwickeln erforderl ehe Krummu g B^ stellten Substrat werden die Solarzenen-Modu.nun, ^ nam ,ch , ,nzelnen Zellen^ _L Instead of the above-mentioned adhesive may be used for temperature-, 5 at the lowermost of the ^Dc ^; ^"l, f _u _{'r nor the ZW1} raturbereiche of - 60 to + 260 ^ C solvent- de achieve ^Kru ™ 3 ™ A _bä chnitt left-containing. silicones are used, which as seen the /.eilen a _{this fn.} mentioned above, good bonds between the fiber glass ble.ben ^ How 'jJjeJP ^ g ^ ^1? ^ ⁸ _{to the} tissue _in which the polyimide and achieved be. krummbare Abschm ^nic ™ * _m _{'to erzeu} gene. on the manufactured in the manner described above winding 30 before reservation required Krummu g B ^ easily substrate, the Solarzenen-Modu.nun, nam ^, ch, nzelnen cells ^ _L

steinen ouobirai wcrucn uic OUIaIZ-CiItH-IyIUUUiIi _u..« — stones ouobirai wcrucn uic OUIaIZ-CiItH-IyIUUUiIi _u .. «-

-Strings mit den entsprechenden Klebern aufgeklebt. einander gerückt werden-Strings glued on with the appropriate adhesives. be moved towards each other

Einer der kritischen Punkte hinsichtlich Flexibilität ν-ι·Λ,,_ηη*_ητ*Λ ήκ Solan und Festigkeit eines flexiblen Solargeneiators liegtOne of the critical points regarding flexibility ν-ι · Λ ,, _ηη * _ητ * Λ ήκ Solan and strength of a flexible solar generator lies

nun in den Verbindern, mit denen die einzelnen So- 35
larzellen in Parallel- und Reihenverschaltung untereinander elektrisch leitend verbunden sind. Um einenow in the connectors with which the individual sun- 35
lar cells are connected in parallel and in series to one another in an electrically conductive manner. To a

ausreichende Festigkeit dieser Verbindungen zu ge- kungsgrades ergeben, wonnigeren u^.sufficient strength of these connections to give a degree of kink, wonnigeren u ^.

währleisten, wird von der Erfindung nun vorgeschla- dung gemachte Vorschlag eine sehr zwecKmauigewährleisten will now proposed by the invention dung proposal made a very zwecKmauige

gen, daß die Verbinder für die Parallel- und für die 40 und günstige Lösung ergibt, bei der trotz Autrecnter-gen that the connector for the parallel and for the 40 and favorable solution results, in which despite the autrec

Reihenverschaltung jeweils getrennt vorgesehen sind. haltung eines guten Wirkungsgrades eine uoerra-Series connection are provided separately. maintaining a good level of efficiency

Damit wird es möglich, gemäß einem weiteren Merk- sehend gute Flexibilität erzielt wird. In Uuemcniung,This makes it possible, according to a further feature, to achieve good flexibility. In Uuemcniung,

mal der Erfindung die Verbinder in der Weise herzu- d.h. in der Richtung der Reihenverschaltung solltimes of the invention, the connectors should be produced in the way that they are to be connected in series

stellen, daß die Walzrichtung ihres Materials jeweils demgegenüber die Solarzellengeneratoranordnungmake that the rolling direction of their material in each case opposite the solar cell generator assembly

in die Richtung der Verschaltung zeigt. Dies hat « möglichst starr sein.points in the direction of the interconnection. This has to be as rigid as possible.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Finding that the rolling up or unrolling direction claims: in the direction of the parallel connection shows that each separate connector for the parallel and for

1. Flexible solar generator with a variety of series connections are provided and that the of arranged on a rollable substrate 5 connectors are formed in such a way that the th photoelectric solar cells, which by means of rolling direction of the material each in the direction shows rolled material punched connector in the interconnection

Parallel and series connection with each other By separating parallel and series connections

Clektrisch conductively connected, thereby circuit and the requirement that the rolling direction characterized in that the roll direction in io of the material in the connectors in each case in the Richdie The direction of the parallel connection shows that the direction of its connection should show, it will now be in each case Separate connector (4, 5) for the parallel is enough that the connector in terms of strength at the favorable-IeI- and are designed for the series connection provided most. Because the main stresses and that the connectors are designed in such a way that the connectors are each formed in the direction of the shuttering are that the rolling direction of the material 15 lines, namely had to be the rolling direction each points in the direction of the interconnection. of the connector material.

2. Flexible solar generator according to claim 1, According to a further proposal, the parallel should thereby characterized in that the parallel connector is connected to the underside of the cell (S) to be electrically conductively connected to the undersides of the soles in such a way that it is longitudinally lar cells (3) is electrically conductively connected that ao one edge of the row .; by soldering, welding, he along an edge (7) of the solar cell by soldering with an electrically conductive adhesive tion. Welding, gluing with an electrical or the like, leaving an unconnected Ablei'fiihigen free Glue or the like, leaving a cut area of the two cell transverse edges unconnected Section (α) in the area that is strengthened. This measure makes one essential of both Cell transverse edges (8) is attached. 25 loan improvement in the flexibility of the solar

3. Flexible solar generator, especially after tors achieved, since the subden to be rolled up Claims 1 and 2, characterized markedly attached parallel connector sufficient possi that as a substrate one with fiberglass (one or more is given, when rolled up on a both sides) (2) glued polyimide film (Ϊ) provided winding drum on the curved jacket of this hen is. 30 drum to put on, d. H. its curvature

4. Flexible solar generator according to claim 3, take; also are the mechanical stresses characterized in that the adhesive is a small one, because it is close to the neutral fiber, thinner, the flexibility of the polyimide film. Another proposal of the invention is to non-influencing glue is used. That as a substrate a mi: glass fiber (one or both

35 sided) glued polyimide film is provided. When

_____ Glue can expediently be a thin liquid

siger, not influencing the flexibility of the polyimide film Glue can be used.

The invention relates to a flexible So- In this way it is achieved that despite Einhs! -

Large generator with a large number of rolls that can be rolled on one side due to a good flexibility of the carrier material Photoelectric substrate arranged so still very good strength with low elongation lar cells, which can be achieved by means of rolled material.

Punched connector in parallel and series formwork- Further features and essential advantages of the

device are connected to each other in an electrically conductive manner. Invention will be at Hend of the drawing, which is a

Solar generators are on satellites or the like. For the 45 exemplary embodiment of the invention schematically represent energy supply the same used, which represents, described and explained in detail. Radiant energy of the sun on photoelectric It shows

Ways is converted into electrical energy. It F i g. 1 the view of part of a ι rfindungsge-

is also already known, such from a variety of solar generator and MASS

of mutually electrically conductively connected so- 50 Fig. 2 a view of the rear side of some parallel Larcell existing solar generators on an interconnected solar cell.

To arrange rollable carrier material, the generator In the F i g. 1 is a polyimide film with 1 and

to be brought into the satellite in the rolled-up state with 2 a glass self-adhesive bonded to this polyimide film and the carrier only in orbit, i.e. H. marked in the decking. The fiber optic sales position in this way of the satellite, with the help of special 55-strengthened polyimide film, serves as a carrier for solar cell devices to extend. This has the advantage of len 3, which by means of series contact connector 4 and Pardaß the accommodation aes relatively large-area contact connector 5 with each other electrically easy Solar generator are connected during the starting phase of the tend. This way it is a multi-satellite Solar cells occupy only a relatively small amount of space thanks to series and parallel systems. 60 connection to so-called modules and these again

The object on which the invention is based, in turn, by means of series and parallel connection, is now to combine a solar generator arrangement into so-called strings, with several creating strings that are suitable for the aforementioned purpose in turn forming the solar generator,
The connectors 4 and 5 are formed by disputes between the solar cells and the mechanical 65 fen, which orbit from electrically conductive, rolled loads during winding, in the starting phase and in metal foils, for example molybdenum foils withstands. are punching.

This problem is solved according to the invention