DE10129478A1 - Combined solar photo-voltaic power module and electrical load, such as an LED light source, has polygonal support frame with common base for supports - Google Patents

Abstract

Combined solar power module and electrical load unit has a support (1) for the solar power module (2) and a support (3) for the load (4). Both supports have a common base (5) and are joined together at their head units to form a closed polygonal configuration (1, 3, 5, 6, 7, 8). Typically the load is an LED light source.

Description

The invention relates to a solar module / consumer unit, with at least a first holding device for the Solar module and a second holding device for the Consumer.

Such a solar module / consumer unit is in the frame DE 199 19 987 A1. Similar configurations can be found in practice. Such aggregates exist a constant problem in that so far this is purely under functional aspects are presented. The So aesthetics are neglected. Incidentally, such aggregates form mostly not a closed, harmonious unit, so that the acceptance leaves something to be desired. The assembly is also complicated and meets the demands of an industrial Manufacturing not. - This is where the invention begins.

The invention is based on the technical problem such solar module / consumer unit so to further develop that with an appealing exterior a functional Unit is provided by compact The structure and simple assembly are impressive.

To solve this problem is a generic Characterized solar module / consumer unit, that both holding devices on the foot side in one shared base and head together are connected and form a closed polygon configuration. This closed polygon configuration usually has over at least two head ends opposite the base Corners. It has proven to be advantageous if in these two head corners on the one hand the solar module and on the other hand the consumer are arranged.

This is particularly recommended in the event that it is the consumer around a lighting fixture, in particular an LED (Light Emitting Diod) light unit. If now the solar module according to a preferred embodiment manually or automatically adjustable in an arcuate Recording is attached and the lighting fixture regularly in a hollow disc with preferably convex Cross-section is taken, an observer becomes abstract Shape reminiscent of the polarities sun and moon. The described polygon configuration with the solar module as well the consumer concerned acts as particularly in aesthetically.

In addition, the closed polygon configuration the Stability of the entire unit increased. They are too Assembly and installation easier. Because it exists on the one hand the possibility of the whole To assemble the solar module / consumer unit completely industrially and then as Set up as a whole. On the other hand, it opens up of course the option to carry out a pre-assembly and in Framework of a final assembly essentially solar module and To install consumers.

In this case, the invention recommends the two Holding devices each as a divided hollow rods especially stainless steel. Because now they can Hollow bars on a given (basically any) point, so that both hollow rods form a pre-assembled unit including the foot or base. This pre-assembled unit is then on site with the Solar module as well as extending consumer Hollow bars combined.

The base is preferably one Hollow body, in particular a hollow concrete body. This has mostly via a U-shaped shell and a divided one Cover. A lid part (of the lid) can be used as run the fixed stop support while the other Cover part acts as a clamp support. The two holding devices or hollow bars are made Stability reasons on the foot side with a two-point bearing equipped. On the one hand there is a screw connection with the U-base of the U-shaped shell as part of a first Fixed point bearing. On the other hand, the one arranged above serves divided cover as a second fixed point bearing for the two Holding devices.

The solar module is regularly a or several embedded between (two) glass panes Solar cells. These are mostly made on the basis of silicon As a result, solar cells are protected, especially since it usually around the two panes of glass Safety glass panes. Likewise, the two take Glass panes the power cable emerging from the solar cell between themselves so that an overall encapsulated structure is achieved. This convinces with its special optical effect resulting from the contrast of the bluish shiny solar cells and the transparent glass and is reinforced by the fact that the Holding devices and a supporting the solar module arched picture mainly shimmering silvery.

This can be done within this arch-shaped receptacle Manually or automatically adjust the solar module. This Adjustment takes into account the fact that the Position of the sun - depending on the geographic location of the described solar module / consumer unit - seasonally changes. So you will because of the low position of the sun in Winter the solar module opposite the arch-shaped holder set steeply, while in summer flatter positions to be taken.

It is conceivable here with a so-called summer and Winter position to work. That means the solar module will adjusted manually twice a year. It goes without saying automatic adjustment is also possible. This takes into account the respective date (supplied by a radio clock), of course the geographical latitude of the Installation site and thus the associated position of the sun. This can be in an associated electronic microprocessor Control system are stored.

Based on the respective position of the sun, the Microprocessor control system control signals for optimal Derive the alignment of the solar module. These control signals are attached to an actuator inside the arc Recording passed on. In this way it is - independent on the season and the latitude of the Site - an optimal one at all times Sunlight yield guaranteed.

The consumer can initially be anything conceivable electrically operated device. Examples for this are parking ticket machines, information and Display modules, light signals etc. However, preference is given to Consumer use a lighting fixture where it is in particular an LED lighting unit. Provided this lighting fixture only brightening functions it is recommended to use so-called white light Use LEDs. Of course, red, green or different colored LEDs are used if additionally or alternatively, for example, illuminated signs in Form of pictograms.

Either way, the lighting fixture in question is in one Hollow disk with a preferably convex cross section added. This hollow disc has in the convex area Cut lines across cavities in which leads, plugs etc. are accommodated. In between is a reception chamber for a plate with the LEDs in it intended. This chamber is made of glass or Plastic disks covered on the outside, each convex Follow the course.

To the required stability of the polygon configuration to be able to represent are the arch-shaped recording and the hollow disc regularly by means of a boom interconnected. This boom may also look like Hollow rod - like the two holding devices especially stainless steel.

The material in question also comes for the arcuate receptacle and the hollow disc with integrated Lighting fixtures for use. Consequently, the industrially manufacture individual metal components and connect with each other, for example by welding. As a result of the practically modular construction due to the divided Hollow bars as holding devices are flexible Manufacturing and easy installation on site. simultaneously ensures the use of stainless steel elegant and durable appearance.

In the following, the invention is based on only one Exemplary embodiment drawing closer explains; show it:

Fig. 1a and 1b, the inventive solar module / aggregate consumer to the solar module in the summer position (Fig. 1a) and winter position (Fig. 1b),

Fig. 2 shows a section through a load in the shape of the LED light unit,

Fig. 3 is a plan view of the base,

Fig. 4 shows a section through the solar module and

FIGS. 5a and 5b modified embodiments of the subject according to Fig. 1a, 1b.

In the figures, a solar module / consumer unit is shown, the basic structure of which is equipped with at least one first holding device 1 for the solar module 1 and at least one second holding device 3 for the associated consumer 4 . In the case of the exemplary embodiment, the two holding devices 1 , 3 are split hollow rods 1 , 3 made of stainless steel. The two hollow rods 1 , 3 are divided in the region of an indicated division plane T.

In this way, the respective lower rod components of the hollow rods 1 , 3 together with a foot 5 form a preassembled unit, which is completed at the installation site with the upper rod components and the solar module 2 and consumer 4 located thereon.

For this purpose, the two holding devices or hollow rods 1 , 3 are received on the foot side in the common base 5 and are connected to one another at the head side, namely by means of a bracket 6 . As a result, a closed polygon configuration 1 , 3 , 5 , 6 , 7 , 8 is formed, which includes the hollow rods 1 , 3 , the foot 5 , the bracket 6 , an arcuate receptacle 7 for the solar module 2 and finally a hollow disc 8 with an integrated therein Includes lighting fixture 9 as a consumer 4 .

In particular, the Figure 1 is based. And 5 it can be seen that the Mehreckkonfiguration 1, 3, 5, 6, 7, 8 (Fig. 1a, 1b) or 1, 3, 5, 6, 7 (Fig. 5a, 5b) has at least two corners on the head side opposite the base 5 , in which the solar module 2 on the one hand and the consumers 4 , 24 and the lighting fixture 9 on the other hand are arranged. The lighting fixture 9 is an LED lighting unit which is accommodated in the hollow disc 8 with a convex cross section. For this purpose, as shown in FIG. 2, the hollow disk 8 is essentially divided into two chambers, namely an annular hollow chamber 10 which adjoins the intersection of the convex lines and an illumination chamber 11 located in between in the center. A receiving plate 12 , in which individual LEDs 13 are inserted, is arranged within this lighting chamber 11 .

As shown in FIG. 2, the individual LEDs 13 are inclined with respect to the horizontal. This ensures that the area below the lighting fixture 9 , in particular the floor, adjacent paths, etc., is optimally illuminated. This applies in particular when taking into account the fact that the LEDs 13 are so-called white light LEDs. Of course, other configurations can also be used. For this reason, the hollow disc 8 is releasably attached to the associated hollow rods 1 , 3 . The same applies to the arcuate receptacle 7 and the consumer 24 .

Consequently, very different arcuate receptacles 7 as well as hollow disks 8 or comparable holders can be used. As a result, the described solar module / consumer unit can be adapted to changing uses, required lighting conditions, etc.

The arcuate receptacle 7 is a replica crescent moon, while the hollow disk 8 with the LEDs 13 located therein reminds of a sun. In this way, a particularly attractive aesthetic design is achieved. The hollow disk 8 may also have a photocell including a twilight switch in its interior, specifically in the hollow chamber 10 , so that the LEDs 13 are actually only activated when required.

The LEDs 13 are supplied with power either directly using the solar module 2 or - as a rule - indirectly via a memory 14 , in particular an accumulator 14, which is placed in the base 5 . In order for this accumulator 14 to be accommodated in the base 5 in a safe and yet accessible manner, it is a hollow body in this respect, a hollow concrete body according to the exemplary embodiment. This has a U-shaped shell with a U base 5 a and U legs 5 b, which are covered by a divided lid 5 c, 5 d.

With reference to FIG. 3, it is seen that the c a lid part 5 is designed as a fixed stop support, while the other cover part 5d acts as here applied against clamping support for the two holding devices or hollow rods 1, 3. In other words, the two holding devices or hollow rods 1 , 3 are clamped between the two cover parts 5 c, 5 d. The indicated press seals 15 ensure a corresponding seal. Of course, the two cover parts 5 c, 5 d are also sealed by additional seals 16 with respect to the U-shaped shell 5 a, 5 b.

Consequently, the base 5 with the hollow rods 1 , 3 mounted therein on the one hand on the U base 5 a and on the other hand on the two cover parts 5 c, 5 d forms a compact structural unit which is generally preassembled including the accumulator 14 and associated electrical leads. Because the two hollow rods 1 , 3 can - as described - be separated along their respective parting planes or parting points T. The corresponding stumps for the complete holding devices 1 , 3 are consequently only completed at the installation site. Likewise, the desired interchangeable arch-shaped receptacle 7 and the likewise interchangeable variable hollow disc 8 as well as the arm 6 connecting the two aforementioned units 7 , 8 can be mounted there. This also applies to the optional consumer 24 , which in the example is a parking meter.

With reference to FIG. 4, it can be seen that the solar module is made up of one or more between two glass panels 17 embedded solar cell 18 2. Derivatives 19 are also received between the two glass panes 17 . These glass panes 17 are safety glass panes, so that there is no risk of injury from broken glass in the event of breakage. L-shaped angles 20 on the lower glass pane 17 ensure that the solar module 2 is fastened in the arc-shaped receptacle 7 , specifically on screw holders 21 there .

In the context of a first variant, at least two screw brackets 21 are realized in the arcuate receptacle 7 in order to be able to represent the summer position of the solar module according to FIG. 1a on the one hand and the winter position of the solar module 2 according to FIG. 1b on the other hand. In addition, the invention also opens up the possibility of automatically tracking the solar module 2 according to the position of the sun. For this purpose, a radio clock including a control device is integrated in the base 5 as a complete control unit 22 . Depending on the position of the sun, this control unit 22 emits control signals to an only indicated actuating device 23 in the arch-shaped receptacle 7 . Either way, the solar module 2 can be optimized with regard to the luminous efficacy, be it by manual or by automatic adjustment.

Instead of the radio clock, which specifies the date and (in conjunction with the geographical latitude) the resulting position of the sun, an illumination sensor can also be provided, which serves to optimize the light yield. It is conceivable to integrate this lighting sensor into the receptacle 7 . Likewise, it is simply possible to always adjust the solar module 2 until the current yield is at a maximum. This can take place in a closed control loop, which is formed by the control unit 22 and a position sensor within the adjusting device 23 .

The LED's 13 together require only a few watts of energy. Nevertheless, its inclination in the mounting plate 12 on the floor achieves a brightness of approximately 3 lux. The angular position in the context of the summer position according to FIG. 1a is approximately 27 ° with respect to the horizontal, while the winter position according to FIG. 1b corresponds to an angle of approximately 73 °.

The hollow disk 8 essentially consists of two metal disks which, by means of appropriate curvature, assume the desired convex shape. They can be joined together by welding or other types of connections. This also applies to the transparent window that seals the lighting chamber 11 from the outside.

All other components of the described solar module / consumer unit are also largely combined by welding or screwing. Stainless steel, crude steel or copper have proven to be particularly suitable as the preferred material. The surface is usually brushed or polished in order to obtain an attractive appearance. In addition, an applied protective varnish ensures that the surface is sealed. It goes without saying that the individual power connections are made via plugs and sockets within the holding devices 1 , 3 .

Claims (10)

1. solar module / consumer unit, with at least a first holding device ( 1 ) for the solar module ( 2 ) and a second holding device ( 3 ) for the consumer ( 4 ), characterized in that the two holding devices ( 1 , 3 ) on the foot side in a common Base ( 5 ) are included and connected to each other at the head and form a closed polygon configuration ( 1 , 3 , 5 , 6 , 7 , 8 ). 2. Solar module / consumer unit according to claim 1, characterized in that the polygon configuration ( 1 , 3 , 5 , 6 , 7 , 8 ) has at least two opposite corners of the base ( 5 ) in which the solar module ( 2 ) and on the other hand, the consumer ( 4 ) are arranged. 3. Solar module / consumer unit according to claim 1 or 2, characterized in that the base ( 5 ) as a hollow body, in particular concrete hollow body, with a U-shaped shell ( 5 a, 5 b) and divided lid ( 5 c, 5 d ) is trained. 4. Solar module / consumer unit according to claim 3, characterized in that a cover part ( 5 c) acts as a fixed stop support and the other cover part ( 5 d) acts as a clamp support for the two holding devices ( 1 , 3 ). 5. Solar module / consumer unit according to one of claims 1 to 4, characterized in that the solar module ( 2 ) has one or more solar cells ( 18 ) embedded between glass panes ( 17 ). 6. Solar module / consumer unit according to one of claims 1 to 5, characterized in that the solar module ( 2 ) is fixed manually or automatically adjustable in an arcuate receptacle ( 7 ). 7. Solar module / consumer unit according to one of claims 1 to 6, characterized in that the consumer ( 4 ) is a lighting fixture ( 9 ), in particular LED lighting unit. 8. Solar module / consumer unit according to one of claims 1 to 7, characterized in that the lighting body ( 9 ) is received in a hollow disc ( 8 ) with a preferably convex cross section. 9. Solar module / consumer unit according to one of claims 1 to 8, characterized in that the arcuate receptacle ( 7 ) and the hollow disc ( 8 ) are interconnected by means of a bracket ( 6 ). 10. Solar module / consumer unit according to one of claims 1 to 9, characterized in that the two holding devices ( 1 , 3 ) are each designed as split hollow rods ( 1 , 3 ) made in particular of stainless steel.