DE8108957U1 - ARRANGEMENT FOR SELECTIVELY MULTIPLE THE CURRENT AND / OR VOLTAGE VALUES OF SOLAR CELL FLAT GENERATORS - Google Patents

Description

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SIEMENS AKTIENGESELLSCHAFT Our mark Berlin and Munich VPA 81 G 7 0 2 4 DE

Arrangement for optionally multiplying the current t

and / or the voltage values of solar cell flat *

generators.

The innovation relates to an arrangement for selectively encryption \ multiple of the current and / or voltage values of solar cells flat generators through series and / or parallel connection of solar cell modules same type of construction. '

With the current development of cheap solar cells, in particular made of silicon, small solar cell modules are interesting, which for a wide variety of applications, such. B. for small appliances, can be used. To reduce the variety of types, it is desirable to use small modules with a module voltage U _n of 1 V) or 1.5 V, which are connected in series according to the total voltage required. The required amperage can also be achieved by connecting such modules in parallel. Such flat solar cell generators or solar panels consisting of several modules can also be used for energy use for facade and roof cladding.

Applications in consumer devices and systems are in a special print from "Electronics", 27th year, No. 7/1978 (Franzis-Verlag, Munich) described in detail.

So far one has the structure of solar cell generators

by interconnecting several solar cell modules through '

an additional cabling is done, whereby one \

the contacting of the individual solar cell arrangements ...

Edt 1 Plr / 3/24/1981 J

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merged in one module into a plus and a minus contact and then attached cable connections between the contacts of the individual modules (see also Fig. 16 from the special print of the electronics quoted above). The type of contact is with one Flat solar cell generator very complex and poor for the variable gradation of current and voltage values suitable.

The task on which the present innovation is based is therefore to create an arrangement with who it is possible

a) Solar cell modules with only one type of construction in a simple and inexpensive series and parallel = circuit to connect with each other and

b) a variable structure of the modules adapted to the respective purpose to form an array (solar generator) to be implemented quickly.

This object is achieved by an arrangement of the type mentioned, which is characterized by im Plastic module body attached to opposite sides of each module through the body going with the co-contact tracks of the solar cell arrangement | connected plus or minus contact sockets made of metal | and plug connections adapted to the sockets from lead f the or insulating material. The electricity

increase the plus and minus contact sockets of each module in the same orientation with plug connections Metal connected to one another, so that several current branches are created. The one through this parallel connection The total current I flowing is then the sum of the partial currents I through the branches, while the voltage .bei the n-equal current sources remains constant. To increase the voltage, the plus and minus contact

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sockets of each module in alternately different orientations with metal connectors and plastic connectors interconnected so that a voltage U present between the first input terminal and the last output terminal drives the current I through all elements. In this series connection, the voltage U _{n is added} ; the current remains constant.

Due to the wireless interconnection on which the innovation is based From solar cell modules to an array it is possible by combining series and parallel connections practically unlimited current and voltage gradations for every desired area of application obtain. This is based on only one type of solar cell module.

Further details are given below on the basis of exemplary embodiments and FIGS. 1 to 5 are explained in more detail. It shows

FIG. 1 shows a perspective view of a solar cell module with contact sockets and contact plugs,
25th

Figure 2 shows a parallel connection of the modules,

Figure 3 shows a series connection of the modules and "_

FIGS. 4 and 5 module arrangements, which are used both for increasing voltage and for increasing current can be.

The same reference numerals are used for the same parts in the figures.

The solar cell module 2 shown in Figure 1 consists

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of three solar cell arrangements 3> 4, 5 made of silicon, which are embedded in a frame-shaped module body 6 made of an injection-molded plastic part. The solar cell arrangements 3, 4, 5 are provided on their surface with 5 a glass cover 7 which closes the module body 6 at the top. The solar cell arrangements 3, 4, 5 are connected to one another in an electrically conductive manner by internal wiring 8. These wirings 8 are routed in the module (3, 4, 5) to the corresponding plus and minus contacts 9 and 10, which are each led out on the two narrow sides of the module frame 6. The plus and minus contacts 9 and 10 are each connected to the plus and minus contact sockets 11 and 12 which are arranged below the solar cell arrangements 3, 4, 5 in the module frame 6 and which are led to the outside through the frame 6 and made of a highly conductive metal. The respective plug connections made of metal 13 or plastic 14 are then inserted into these sockets 11, 12, 20 brought in, with a plug connection (13 or 14) each; weils are two sockets (11 or 12) of two modules 2, 20 equip- ped i.

■ It is now possible, as shown in Figure 2, to

, 25 leads, modules 2, 20, 21, 22, 23 to Stromer-ί to stick together in the same orientation. ;; There are both the plus and minus contacts I connected to one another in an electrically conductive manner (parallel connection).

V 30

I With the same modules 2, 20, 21, 22, 23, however, I can also increase the voltage by I as shown in Figure 3, be plugged together in alternating different orientations. In

ΐ 35 In this case, the sockets (11, 12) are only each I equipped with conductive elements on one side (series connection). The remaining connectors can be used to increase the

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Stability of the mated unit with non-conductive Plastic plugs 14 are provided.

By combining both types of arrangement (FIG. 2 and FIG. 3) for modules 2, 20, 21, 22, 23... As shown in FIGS. 4 and 5, any number of current and voltage increases can be set. Thus, FIG. 4 shows a circuit in which the voltage U _n is multiplied twice and the current I _{n is} multiplied four times, while in the circuit in FIG. 5 the voltage U n is multiplied three times

U and three times the current values I _{n are} multiplied.

7 claims for protection
5 figures

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Summary.

Arrangement for optionally multiplying the current and / or voltage values of solar cell flat generators. 5

The innovation relates to an arrangement for optionally multiplying the current and / or voltage values of solar cell flat generators (2, 2O ₉ 21, 22 ...) by series and / or parallel connection of solar cell modules (2) of the same type. In the module body (6) made of plastic there are positive and negative contact sockets (11, 12) connected to the contact tracks (8, 9, 10) of the solar cell arrangement (3, 4, 5) on opposite sides through the body (6) ) made of metal. Plug connections (13, 14) made of conductive or insulating material are provided for assembling the modules (2). This means that practically unlimited current and voltage gradations are possible with only one module type (2) (FIGS. 1 to 5).

Claims (7)

- 6 - VPA BIG 7 0 2'4OE protection claims. ' 1. Arrangement for optionally multiplying the current and / or the voltage distribution of solar cell flat generators (2, 20, 21, 22. ".) By series and / or parallel connection of solar cell modules (2) Construction type, characterized by in the module body (6) made of plastic on opposite sides Sides of each module (2) attached through the frame (6) and continuous with the contact tracks (9, 10) the solar cell arrangement (3, 4, 5) connected plus or minus contact sockets (11, 12) made of metal and to the Sockets (11, 12) adapted plug connections (13, 14) made of conductive or insulating material. 2. Arrangement according to claim 1, characterized geke _v is used to mark, that the current increase the plus and the minus contact sockets (11, 12) of each module (2, 20, 21, 22 ...) of the same orientation with plug connections (13) Metal are interconnected. 3. Arrangement according to claim 1, characterized g e kennnzeich.net that to increase the voltage the plus and minus contact sockets (11, 12) one each module (2, 20, 21, 22 ...) in alternating different orientations with plug connections (13) Metal and are connected to one another with plug connections (14) made of plastic. 4. Arrangement according to claim 3, characterized that the contact bushes, which are not used for the function of the circuit, are used to increase the Stability of the arrangement with connectors (14) made of insulating material, e.g. B. are made of plastic. 5. Arrangement according to claim 1 to 4, characterized - 7 - VPA 81G 70 24 DE characterized in that to increase the current and voltage values of a 'solar cell generator (2, 20, 21, 22 ...) in both the same and alternately different orientations arranged modules (2, 20 ....) depending on the desired Current and voltage increase Plug connections made of metal (13) and plastic (14) in the contact sockets (11, 12) are introduced. 6. Arrangement according to claim 1 to 5, characterized in that the module body (6) consists of an injection molded plastic part. 7. Arrangement according to claim 1 to 6, characterized in that the plug (13, 14) for the plug connections are provided with slots at both ends.