DE102005063442B4 - Solar power system with a plurality of photovoltaic modules and an inverter module and inverter module for such a solar power system - Google Patents

Abstract

Solar system having at least one mounting bracket (50) and a plurality of photovoltaic modules (1) mounted on the mounting bracket (50) and electrically interconnected, further comprising an inverter module (90), characterized in that the inverter Module (90) has an identical or coordinated appearance as the photovoltaic modules (1) and is mounted in an identical manner on the mounting support (50) or.

Description

Field of the invention

The The present invention relates to a solar power system having a plurality of photovoltaic modules and an inverter module for use in such a solar power system.

Background of the invention

One Solar system usually includes a plurality of photovoltaic modules mounted on one or more mounting brackets are mounted.

The Photovoltaic modules of a solar power system can be connected in series be connected to a desired one Can provide tension be connected in parallel to each other to provide a current, or can in a combination of series connection and parallel connection with each other be interconnected. When all photovoltaic modules are illuminated, each generate their respective voltage or current signals that sum up, to the desired Maintain output signal. However, if one or more the photovoltaic modules are shaded, these become modules operated in the reverse direction. This can lead to a loss of output or even to a permanent damage lead a photovoltaic module.

DE 103 23 982 A1 discloses an inverter for solar modules in the form of a housing module which is connected to a bottom plate. The inverter is mounted with at least one spacer on the rear wall of an associated solar module, wherein the bottom plate of the inverter is pre-assembled to the rear wall of the solar module, so that the housing module with all the essential components of the bottom plate and thus the solar module can be removed without electric To solve connections to the solar module. The inverter module is thus not visible from the front of the solar module ago.

DE 40 32 569 C2 discloses a photovoltaic system with a plurality of photovoltaic modules, which are combined into strings, each module being provided with its own inverter. The inverters are each integrated in a module whose housing is mounted on the back of an associated photovoltaic module. The inverter module is thus not visible from the front of the photovoltaic module forth.

Summary of the invention

task It is the object of the present invention to provide an easy-to-configure and to be installed solar power system with consistently high efficiency ready to provide that a plurality of photovoltaic modules as well Inverter module includes. According to another aspect The present invention is also intended to use an inverter module for use be provided in such a solar power system.

These and further objects are according to the present Invention by a solar power system having the features of claim 1 and by an inverter module solved according to claim 27. Further advantageous embodiments are the subject of the referenced Claims.

Consequently the present invention is based on a solar power system, the at least one mounting bracket and a plurality of photovoltaic modules that are mounted on or the mounting bracket are mounted and electrically together in a suitable configuration are interconnected, in adaptation to both electrical requirements as well as the structural conditions of a roof covering or Facade on which the solar power system is mounted.

According to the invention the solar power system continues to be an inverter module that looks outward is formed identical to the photovoltaic modules and at a suitable location mounted in the arrangement of photovoltaic modules on the mounting bracket is.

While inverter modules according to the state the technique usually spaced from the arrangement of photovoltaic modules is provided what the installation of several comparatively high-priced DC lines necessary, can so according to the invention line routes between the inverter module and the photovoltaic modules minimized and cheaper be designed. Because the inverter module is not externally of the photovoltaic modules It can be distinguished at any point in the arrangement be arranged by photovoltaic modules, so that the solar power system according to the invention even more flexible to electrical requirements and structural conditions can be adjusted.

Prefers the inverter module is therefore identical to the mechanical structure formed to the photovoltaic modules and in particular in identical Way to the mounting bracket mounted as described above.

According to a further embodiment, in this case, the inverter module in particular a cover, which is color coordinated on the transparent cover with the underlying, provided with a backsheet or coating solar cell assembly of a photovoltaic module. By color coordination is meant in particular an identical color design or a little contrasting color design, so that the inverter module fits harmoniously into the arrangement of photovoltaic modules, without being perceived as disturbing. For example, the inverter module could have a greyish shimmering surface, while the photovoltaic modules usually have a slightly bluish shimmering surface, but this depends on the materials used for the solar cells.

there can the mounting bracket be formed like a frame, with a plurality of in a matrix arrangement provided fields for receiving a respective photovoltaic module. According to another embodiment form parallel to each other on the roof cover or facade mounted Profiles the mounting bracket out. Each photovoltaic module is assigned a bypass diode, which operates in the reverse direction when the associated photovoltaic module is shading-free, and the associated photovoltaic module bridged in the event of shading.

According to the invention Bypass diodes provided in or on the respective mounting bracket. Thereby becomes a spatial Achieved separation to the solar cells, so that heating of the Bypass diodes do not directly cause heating of the solar cells and thus leads to a reduction of the photoelectric efficiency. The Solar power system according to the present Invention can thus with higher Efficiency can be operated.

A Arrangement of the bypass diodes in the mounting bracket can in particular then can be easily realized if the mounting bracket designed as a hollow profile is whose cavity is from the outside accessible without further ado is. According to one preferred embodiment the bypass diodes are each provided directly to the mounting bracket. For protection against environmental influences and to facilitate electrical contact, it will preferred, the bypass diodes in a separate, with electrical Plug connectors or the like housing provided, each directly on the mounting bracket is arranged or mounted.

According to one another embodiment is used such a housing at the same time as a connecting element, which at a predetermined Location corresponding to the electrical interconnection of the photovoltaic modules on a mounting bracket is mounted so that the photovoltaic modules of the fasteners are held. A particularly simple assembly then results when the photovoltaic modules are plugged into the connectors can be. Thus, you can the mounting bracket be mounted on the roof cover or facade, the respective Arrangement of the photovoltaic modules and their electrical interconnection However, it can continue to be made variable, namely by appropriate mounting of the fasteners on the mounting bracket in correspondence to the desired electrical interconnection and geometric arrangement of the photovoltaic modules and by suitable insertion of the photovoltaic modules.

Especially preferred are the mounting bracket It is designed so that the connecting elements thereby at any Locations can be attached to the associated mounting supports, in particular are infinitely displaceable. According to another embodiment can the connecting elements at predetermined locations in the associated mounting bracket be locked. For this purpose, on the mounting bracket in a suitable pitch, the on the geometric dimensions of the photovoltaic modules to be accommodated is matched, Verrastungselemente be provided, in which the Fasteners can each be engaged. During the assembly must thus only these latching points are searched. The connecting elements can Thus, practically no longer be mounted at incorrect intervals, which is the Speed and reliability The assembly also significantly increased by unskilled workers.

According to one another embodiment are the mounting vehicles designed as endless profiles, for example with a square or rectangular Cross-section. It can the endless profiles with a longitudinal recess or longitudinal survey be formed in the correspondingly formed latching means engage the fasteners. The longitudinal recess or survey can with a suitable profile for secure holding of the connecting elements be formed, in particular as a T-slot.

A particularly reliable mechanical mounting then arises when the fasteners the associated mounting bracket embrace like a clip, in particular symmetrically. The can Latching means on inner or side surfaces of such fasteners be provided, so not visible from the outside or accessible.

In this case, the latching means in a Verrastungsstellung for locking the connection be biased elements with the associated mounting bracket, which secures the mounting position, however, requires that the biasing force for mounting must be overcome.

According to one particularly preferred embodiment The connecting elements have sockets and / or sockets on, with correspondingly formed sockets and / or Sockets of the photovoltaic modules, in particular on a support frame the same, cooperate so as to provide an electrical interconnection of Photovoltaic modules to accomplish together. It will preferred that the sockets and / or sockets of a respective Connecting element two adjacent photovoltaic modules so electrically interconnected with that of an associated photovoltaic module is shaded in the event of shading by means of a bypass diode. By integration the bypass diode and the sockets and / or sockets in a connecting element, the solar system thus according to the invention substantially from only three or optionally only four different elements, namely a simple mounting carrier, which is designed in particular as an endless profile, of a plurality of fasteners in the mounting bracket in a suitable configuration are inserted or intervene in this, the electrical interconnection of the photovoltaic modules, from a plurality of photovoltaic modules, which are plugged into the fasteners, and optional from at least one inverter module.

In order to the bypass diode integrates well with such a connector can be, it is preferred that the connecting element as a hollow Train box.

at a matrix arrangement of photovoltaic modules must either horizontally or interconnected vertically adjacent photovoltaic modules together become. To ensure such an interconnection, according to a another embodiment a solar system with two different types of fasteners provided, namely a first guy for an electrical connection of two adjacent photovoltaic modules on opposite lying sides of the mounting bracket is designed so that an associated photovoltaic module is bridged in the event of shading, and a second type for an electrical connection of two adjacent photovoltaic modules is designed on the same side of the mounting bracket, so the assigned photovoltaic module is bridged in the event of shading. Also if the mounting bracket can be horizontally or vertically mounted, can be such a suitable interconnection of the photovoltaic modules in correspondence to electrical requirements or structural conditions realize the roof covering or facade.

According to one another embodiment the photovoltaic modules have a holding frame made of a plastic, preferably made of an elastomeric plastic, on, behind a transparent cover and is connected to this adhesive is and a plastic material encapsulated in a plastic material arrangement bordered on the edge at least in sections, with electrical connectors for electrical connection with the connecting elements in the Holding frame are integrated, in particular cast, injected or foamed, for example, on an underside of the holding frame. To suitable Interconnection of such photovoltaic modules thus need the connecting elements only in a suitable configuration on the mounting bracket or the connecting elements are plugged in and then the photovoltaic modules be plugged into these fasteners.

Around additional fasteners superfluous too make can be provided that on the support frame of the Photovoltaic module further connection and / or alignment means are provided, the with correspondingly formed connection and / or alignment interact of the connecting elements. Such connection and / or Alignment means can in particular as elevations, such as cones or depressions on the bottom or side surface be formed of the holding frame.

According to one another embodiment Furthermore, in the plastic material of the holding frame an anchoring or retention means be integrated to a tearing off the aforementioned connection and / or alignment of or from to prevent the holding frame, for example in the case of a wind suction after the assembly. Such an anchoring means can be used in particular as be formed in the support frame integrated endless profile, which is at least partially extends in the circumferential direction of the support frame and in which the connecting and / or aligning means intervene, retained at the holding frame to become.

One Another aspect of the present invention particularly relates an inverter module for a solar power system of the aforementioned type.

One Another aspect of the present invention further relates a method of assembling a solar power system, which is more detailed discussed below will be.

LIST OF FIGURES

following the invention will be described by way of example and with reference on the attached Drawings are described, resulting in more features, benefits and to be solved Tasks will result. Show it:

1 in a partially exploded perspective view of a trained as an endless mounting mounting bracket with a connecting element according to a first embodiment of the present invention;

2 the system according to the 1 in an assembled state;

3 a corresponding system according to a second embodiment of the present invention;

4 in a schematic partial section of a photovoltaic module with an integrated in the holding frame on the back connector;

5a an exemplary electrical string connection of an inverter module with fifteen photovoltaic modules on a square base surface;

5b in a schematic plan view of a photovoltaic module with connector plugs according to the present invention;

5c in a plan view of an inverter module according to the present invention with connector plugs provided thereon; and

6 in a schematic cross section of an inverter module according to the present invention.

In the figures denote identical reference numerals identical or Substantially equal elements or groups of elements.

Detailed description of preferred embodiments

According to the 1 is the mounting carrier 50 designed as an endless profile with a square cross-section, for example as an aluminum extruded profile. On the long sides of the mounting bracket 50 are four T-slots 51 designed to engage in the correspondingly formed latching elements, as described below.

Such a mounting bracket is according to the 1 from a cross-sectionally U-shaped connecting element 60 clasped like a clip. In the middle of the connecting element 60 form the two of the ground 63 vertically projecting side walls 62 a longitudinal central receptacle 61 for picking up the mounting bracket 50 out. When assembled, the side walls are located 62 directly on side walls of the mounting bracket 50 at. From the side walls 62 protrude latch pins 65 which are biased inwardly by means of compression springs. When mounted, the tips of the locking pins protrude 65 into the T-slot 51 the assigned mounting bracket 50 in to the position of the connecting element 60 in relation to the mounting bracket 50 to lock. It can in the mounting bracket 50 , for example at the bottom of the T-slots 51 , Indexing blind holes may be provided which the locking pins 65 lead to a locked position. For locking the locking pins 65 with the T-slots 51 engaged and the connecting element 60 in the longitudinal direction along the mounting bracket 50 moved until the tips of the locking pins 65 engage in the indexing blind holes. The distances between these indexing blind holes are tuned to the lengths of the photovoltaic modules such that they can be mounted snugly on the mounting bracket, as described in more detail below.

According to the 1 is on top of the connecting element 60 on the left side of the mounting bracket 50 a connector 74 with a contact pin 75 provided and are on the right side of the mounting bracket a connector 70 with a contact pin 71 and a junction box 72 with a contact socket 73 educated. pin 71 and contact socket 73 are over a connection line 81 with a bypass diode 80 electrically connected to each other. The bypass diode 80 is switched so that it is operated in the reverse direction, if the associated, in the connecting element 60 inserted photovoltaic module is illuminated, and so that the associated photovoltaic module in the event of shading by means of the bypass diode 80 is bridged. According to the 1 connects another line 76 the junction box 72 with the connector 74 on the opposite side of the mounting bracket 50 , The 2 shows the system according to the 1 in an assembled state, in which the locking pins 65 into the T-grooves 51 of the mounting carrier 50 protrude into the connecting element 60 to secure against a vertical lifting.

The 4 shows a schematic partial section of a photovoltaic module 1 comprising a holding frame formed of an elastomeric plastic 10 Includes a transparent cover 2 and one on the back in a plastic encapsulating material 4 arranged solar cell array 3 at least on the edge partially enclosed. For further anchoring of aligning and / or connecting means, for example latching pins, is in the plastic material of the holding frame 10 a substantially C-shaped profile 20 , For example, an aluminum extruded profile, integrated, which has a lower leg 24 by, in the region of the illustrated electrical connector 40 an opening protrudes, leaving the contact pin 41 from the bottom 60 of the holding frame 10 is accessible. The contact pin 41 is over a wire 42 and a connection banner 43 that have a gap 6 between the peripheral edge of the solar cell array 3 and the inner wall of the holding frame 10 protrudes, with the solar cell array 3 electrically connected. For better ventilation and cooling of the photovoltaic module 1 is on the back between the top of the support frame 10 and the back of the encapsulation 4 the solar cell arrangement 3 A gap 7 formed with a clear width of about 2 to 3 mm, at least in sections along the edge of the holding frame 10 extends. According to a further embodiment, at areas of the holding frame 10 without alignment and / or connecting means and electrical connector a gap between an upper surface of the support frame 10 and a back of the encapsulation 4 the solar cell arrangement 3 be formed, the even better rear ventilation of the solar cell array 3 serves.

For mounting a solar power system according to the invention proceeds as follows: First, several mounting support, as in the 1 shown, parallel and spaced apart mounted on a roof cover, facade or the like, wherein the distances between the mounting brackets of the length or width of the photovoltaic modules to be mounted correspond. According to a further embodiment, perpendicular to the assembly supports thus mounted further correspondingly formed mounting brackets can be laid parallel and spaced from each other, wherein at the intersection points suitable recesses are provided on the profiles of the mounting bracket.

Then, for each corner of the photovoltaic modules to be mounted, a connecting element 60 , like in the 1 shown mounted at suitable positions along the length of the mounting bracket, in the embodiment by locking the locking pins in the T-slots of the mounting bracket. The connecting elements can be arranged freely movable in the longitudinal direction along the mounting supports. According to a preferred embodiment, the connecting elements can be attached to the mounting supports only at predetermined locations corresponding to the lengths of the photovoltaic modules to be mounted. For this purpose, alignment means, for example indexing blind holes, as described above, may be provided.

Subsequently, the photovoltaic modules, which are shown schematically in the 5b shown, placed on the fasteners, so that at the bottom of the holder frame 10 (Comp. 4 ) provided connector 40 and / or sockets in on the top of the connecting elements 60 (Comp. 1 ) provided and correspondingly formed sockets and / or connector plug engage. As a result, an electrical contacting of the plugged-on photovoltaic module is achieved. Through the connection line 76 in the connecting element 60 is doing at the same time an electrical connection with the on the opposite side of the mounting bracket 50 achieved plugged photovoltaic module. Transverse to the mounting bracket opposite photovoltaic modules can be connected in series, said according to the 1 On the right side arranged photovoltaic module a bypass diode 80 is assigned, which is operated in the reverse direction, if that in the 1 illuminated on the right side photovoltaic module, and which bridges this photovoltaic module in the event of shading.

To connect in the longitudinal direction of the mounting bracket adjacent photovoltaic modules together so that an associated photovoltaic module is bridged in the event of shading is, according to the 3 another type of connecting element 60 ' intended. This is the connector 74 and the connector 70 with the associated socket 72 on the same side of the mounting bracket 50 and within the same connector 60 ' , connector 70 and socket 72 are interconnected via a bypass diode and for receiving a correspondingly shaped socket and a correspondingly designed connector of a first photovoltaic module determined. The connection with the longitudinal direction of the mounting bracket 50 adjacent photovoltaic module via the connecting line 76 and the connector 74 ,

By suitable geometrical arrangement of the two types of connecting elements on the mounting supports, a suitable electrical connection of a plurality of photovoltaic modules can thus be achieved, as is shown by way of example in FIG 5a shown. According to the 5a are the photovoltaic modules labeled with the letters A to O 1 in alphabetical order in a row. In total, the solar power system comprises fifteen photovoltaic modules 1 as well as an inverter module 90 externally substantially identical to the photovoltaic modules 1 is configured, in particular an identical or matched to the adjacent photovoltaic modules Ober Has surface color and design.

Such an inverter module 90 is exemplary in the 6 shown in a sectional view. This inverter module 90 has a mechanical structure comparable to that in the 4 shown photovoltaic module. Instead of the solar cells is on the back of the cover 2 ' the actual inverter 93 arranged, preferably encapsulated in a housing or a plastic. The rest of the back of the cover 2 ' can, as in the 6 shown with a plastic 17 be overmoulded, in particular integrally with the holding frame 10 can be trained. The contacting of the inverter 93 takes place on the back via the connecting lug 43 and the contact pin 41 in the manner as above in the context of the photovoltaic module according to the 4 described in more detail.

The electrical contacting of the photovoltaic module 1 is in the 5c shown, consequently a plus connection 85 in the upper right corner of the module, a plus connector and a minus connector in the lower right corner of the module and a plus connector 85 is provided in the lower left corner of the module. The plug are formed on the underside of the holding frame of the module, as exemplified in the 4 shown. The arrangement of the connector is not mirror-symmetrical relative to the center of the module 1 , This allows in cooperation with a corresponding first or second type of connecting element, as described above, in a first rotational position of the module 1 an interconnection with one in the 5a horizontally adjacent photovoltaic module and in a second rotational position, namely rotated by 180 °, with a in the 5a vertically adjacent photovoltaic module. The two rotational positions can not be confused with each other since the photovoltaic modules and the inverter module preferably have a rectangular basic shape and because terminals of identical polarity are not arranged at identical positions along longitudinal sides of the holding frame.

According to the 5a is always the plus terminal of a photovoltaic module connected to a negative terminal of an adjacent photovoltaic module, via a connecting element, as in 2 or 3 shown, wherein each photovoltaic module is associated with a bypass diode for protection, which is integrated according to the preferred embodiment in the connecting element.

As for connecting the inverter module 90 identical fasteners are used, also in the 5c shown inverter module 90 Connectors 91 . 92 in appropriate places, however, a bypass diode is not required.

1

photovoltaic module

2, 2 '

transparent cover plate

3

solar cell

4

encapsulant

7

recess

10

holding frame

11

circumferential edge

16

bottom

17

rear Plastic layer

20

Reinforcing agents / C-profile

24

lower leg

40

connector

41

pin

43

terminal lug

44

Positive locking structure

50

profile of the mounting frame

51

T-slot

55

string interconnection

60

Connection box / connector element

61

admission

62

Side wall

63

ground

65

Latching / locking pin

66

feather

70

connector

71

pin

72

junction box

73

Contact socket

74

connector

75

pin

76

electrical connection

80

Bypass / freewheeling diode

81

Bypass line

85

Plus port of the photovoltaic module

86

+ / - Connection of the photovoltaic module

90

Inverter Module

91

Minus terminal

92

Plus port

93

inverter

Claims (27)

Solar system with at least one mounting bracket ( 50 ) and a plurality of photovoltaic modules ( 1 ) on the mounting carrier (s) ( 50 ) are mounted and electrically interconnected, further comprising an inverter module ( 90 ), characterized in that the inverter module ( 90 ) an identical or coordinated appearance as the photovoltaic modules ( 1 ) and in an identical manner to the one or more mounting supports ( 50 ) is mounted. Solar system according to claim 1, wherein the Inverter module ( 90 ) of the mechanical structure identical to the photovoltaic modules ( 1 ). Solar system according to claim 1 or 2, wherein the inverter module ( 90 ) a cover ( 2 ' ), which is color matched to the transparent cover ( 2 ) of the photovoltaic modules ( 1 ) with a solar cell arrangement underneath ( 3 ). Solar system according to claim 3, wherein the solar cell arrangement ( 3 ) of the photovoltaic modules ( 1 ) is provided with a backsheet or coating. Solar system according to one of the preceding claims, wherein the inverter module ( 90 ) has a greyish shimmering surface, while the photovoltaic modules usually have a slightly bluish shimmering surface. Solar system according to one of the preceding claims, wherein on a rear side of a cover ( 2 ' ) of the inverter module ( 90 ) an inverter ( 93 ) is held. Solar system according to claim 6, wherein a holding frame ( 10 ) of a plastic cover ( 2 ' ) bordered on the edge at least in sections and the cover ( 2 ' ) holds. Solar system according to claim 7, wherein between the transparent cover ( 2 ' ) of the inverter module ( 90 ) and an inverter ( 93 ) is formed a gap to a removal of waste heat from the inverter ( 93 ) by air convection. Solar system according to claim 7 or 8, wherein the rear side of the cover ( 2 ' ) is encapsulated with a plastic. Solar system according to claim 9, wherein the plastic is integral with the support frame (10). 10 ) is trained. Solar system according to one of the preceding claims, wherein the contacting of the inverter module ( 90 ) on the back via a connecting lug ( 43 ) and a contact pin ( 41 ) in the manner as with the photovoltaic modules ( 1 ) he follows. Solar system according to one of the preceding claims, wherein the photovoltaic modules ( 1 ) have a square basic shape and electrical connection means ( 85 . 86 ) along longitudinal sides of the photovoltaic modules ( 1 ) are provided at identical predetermined positions, preferably in the center, so that the photovoltaic modules ( 1 ) in four, each rotated by 90 ° to each other rotational positions of the mounting bracket ( 50 ), and wherein electrical connection means of the inverter module ( 90 ) are provided at appropriate positions. Solar system according to one of claims 1 to 11, wherein the photovoltaic modules ( 1 ) have a rectangular basic shape and electrical connection means ( 85 . 86 ) along longitudinal sides of the photovoltaic modules ( 1 ) are provided at different predetermined positions, so that the photovoltaic modules ( 1 ) in two, each rotated by 180 ° to each other rotational positions of the mounting bracket ( 50 ) can be mounted, wherein in a first rotational position, an electrical connection to a horizontally adjacent photovoltaic module can be formed and in a second rotational position, an electrical connection to a vertically adjacent photovoltaic module can be formed, and wherein electrical connection means of the inverter module ( 90 ) are provided at appropriate positions. Solar system according to one of the preceding claims, wherein the photovoltaic modules ( 1 ) a holding frame ( 10 ) of an elastomeric plastic having a transparent cover ( 2 ) and a plastic material ( 4 ) encapsulated solar cell arrangement ( 3 ) bordered at least in sections at the edge, and wherein electrical connectors ( 40 ) for electrical connection with the connecting elements ( 60 ) in the holding frame ( 10 ) are integrated, in particular cast, injected or foamed. Solar system according to one of the preceding claims, wherein each photovoltaic module ( 1 ) a bypass diode ( 80 ), which is operated in the reverse direction when the associated photovoltaic module is illuminated, characterized in that the bypass diodes ( 80 ) in or on the respective mounting carrier ( 50 ) are provided. Solar system according to claim 15, wherein the bypass diodes ( 80 ) in with electrical connectors ( 70 . 72 . 74 ) provided connecting elements ( 60 ) are provided, which at predetermined locations on the mounting supports ( 50 ) in correspondence with the electrical interconnection of the photovoltaic modules ( 1 ) are mounted, wherein the photovoltaic modules ( 1 ) of the connecting elements ( 60 ) are held, in particular in this are plugged. Solar system according to claim 16, wherein the connecting elements ( 60 ) at the predetermined locations in an associated mounting carrier ( 50 ) are engaged. Solar system according to claim 17, wherein the mounting supports ( 50 ) as endless profiles with a longitudinal recess ( 51 ) or survey are formed, in the correspondingly formed latching means ( 65 ) intervene. Solar system according to claim 18, wherein the connecting elements ( 60 ) the assigned mounting carrier ( 50 ) surround like a clamp. Solar system according to claim 18 or 19, wherein the latching means ( 65 ) on interior or side surfaces ( 62 . 63 ) of the connecting elements ( 60 ) are provided. Solar system according to one of claims 18 to 20, wherein the latching means ( 65 ) in a Verrastungsstellung for locking the connecting elements ( 60 ) with the associated mounting carrier ( 50 ) are biased. Solar system according to one of claims 16 to 21, wherein the connecting elements ( 60 ) Sockets ( 72 ) and / or sockets ( 70 . 74 ), which with correspondingly formed sockets ( 40 ) and / or sockets on the support frame ( 10 ) of a respective photovoltaic module ( 1 ) act together, wherein the sockets and / or sockets of a respective connecting element ( 60 ) two adjacent photovoltaic modules ( 1 ) are electrically interconnected such that a photovoltaic module ( 1 ) by means of an associated bypass diode ( 80 ) is bridged. Solar system according to claim 22, wherein the connecting elements ( 60 ) are formed as hollow boxes, with an electrical connection line ( 76 ) within a respective connecting element ( 60 ), to sockets and / or sockets of the respective connecting element ( 60 ) suitable interconnect. Solar system according to claim 22 or 23, with two different types of connecting elements ( 60 ), namely a first type ( 60 ), which is used for an electrical connection of two adjacent photovoltaic modules ( 1 ) on opposite sides of the mounting carrier ( 50 ) and a second type ( 60 ' ), which is used for an electrical connection of two adjacent photovoltaic modules ( 1 ) on the same side of the assembly carrier ( 50 ) is designed. Solar system according to claim 24, wherein the first type of connecting element ( 60 ) a first electrical connector ( 74 ) for placement on a first side of the mounting bracket ( 50 ) and two other electrical connectors ( 70 . 72 ) for placement on an opposite second side of the mounting bracket ( 50 ) having. Solar system according to claim 24, wherein the second type of connecting element ( 60 ' ) a first electrical connector ( 74 ) for placement on a first side of the mounting bracket ( 50 ) and two other electrical connectors ( 70 . 72 ) on the same side of the mounting bracket ( 50 ) having. Inverter module ( 90 ) for use in a solar system comprising at least one mounting support ( 50 ) and a plurality of photovoltaic modules ( 1 ), which are based on the mounting carrier (s) ( 50 ) are mounted and electrically interconnected, characterized in that the inverter module ( 90 ) an identical or coordinated appearance as the photovoltaic modules ( 1 ) and in an identical manner to the one or more mounting supports ( 50 ) is mounted.