Photovoltaikmodul

Abstract

The present invention relates to a photovoltaic module (1, 1') consisting of numerous solar cells (10) which are electrically interconnected by conductor tracks (100) and embedded in a transparent protective layer, wherein the protective layer with the solar cells (10) is covered at least on one side by a first transparent, planar cover (12) and on the opposite side by a second planar cover (12'), wherein the conductor tracks (11) lead in a defined grid over the solar cells (10) from a first connection (13) to a second connection (14) on the photovoltaic module (1, 1').The photovoltaic module (1, 1') according to the invention is characterized in that at least one additional conductor track (15) is received on the photovoltaic module (1, 1') within the receiving space (19) formed by the two covers (12, 12'), which is not connected to the conductor tracks (100) and solar cells (10) provided within the receiving space (15) of this photovoltaic module (1, 1'), and which conducts current from a first conductor track connection (16) to a second conductor track connection (17) on the photovoltaic module (1, 1').

Description

Technical area

[0001] The present invention relates to a photovoltaic module according to the preamble of patent claim 1. State of the art

[0002] Photovoltaic modules that produce electricity from solar energy are well known. These are usually made of glass or other translucent material and, depending on the application, are framed for roof or open-air construction, or unframed for facades. Photovoltaic modules consist of numerous solar cells that are electrically interconnected by conductor tracks and embedded in a transparent protective layer. The protective layer with the solar cells is covered on at least one side by a first transparent, flat cover and on the opposite side by a second flat cover. The conductor tracks run in a defined grid over the solar cells from a first connection to a second connection on the photovoltaic module. Common photovoltaic modules usually have a junction box installed, which transfers the power from the solar cells to a cable connection on the back.Junction boxes with two cable outlets (+ pole and - pole) are regularly installed.

[0003] Frameless photovoltaic modules are practically never used in fence systems. While it is of course possible to mount a frameless or framed panel between fence posts, these are not designed for this purpose. With standard (frameless) PV facade modules suspended between fence posts, the cables would be freely accessible, attached to the back or side of the frame. Children and other people could easily access live cables without much difficulty or requiring safety measures, as they are clearly visible. Common systems, which can generally be mounted between fence posts, begin with an inverter to which a cable is connected (positive), which then connects the modules in series depending on the fence length. This leaves a cable strand at the end of the fence system that must then be returned to the starting point and connected there (negative) to generate electricity.Since it's a fence, the end of the cable is freely accessible and must now be routed back to the inverter, for example, through the ground. High-voltage cables with high currents require special safety measures. Furthermore, such a system would be unsightly and potentially dangerous as a fence. Description of the invention

[0004] The present invention is based on the object of eliminating the aforementioned disadvantages and of creating a photovoltaic module which ensures safe current conduction and is user-friendly to install.

[0005] According to the invention, the above object is achieved according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous embodiments and further developments of the photovoltaic module according to the invention are specified in the dependent subclaims. Short description of the drawing

[0006] Further objects, features, advantages and possible applications of the photovoltaic module according to the invention will become apparent from the following description of an embodiment with reference to the drawing.

[0007] The drawing shows Fig. 1 the photovoltaic module according to the invention in an advantageous embodiment in the front view, broken away. Implementation of the invention

[0008] As from Fig.1, the photovoltaic module 1, 1' according to the invention consists of numerous solar cells 10 which are electrically interconnected by conductor tracks 100 and embedded in a transparent protective layer, wherein the protective layer with the solar cells 10 is covered on at least one side by a first transparent, flat cover 12 and on the opposite side by a second flat cover 12', wherein the conductor tracks 11 lead in a defined grid over the solar cells 10 from a first connection 13 to a second connection 14 on the photovoltaic module 1, 1'.

[0009] According to the invention, the photovoltaic module 1, 1' is characterized in that at least one additional conductor track 15 is accommodated on the photovoltaic module 1, 1' within the receiving space 19 formed by the two covers 12, 12', which conductor track 15 is not connected to the conductor tracks 100 and solar cells 10 provided within the receiving space 15 of this photovoltaic module 1, 1', and which conducts current from a first conductor track connection 16 to a second conductor track connection 17 on the photovoltaic module 1, 1'.

[0010] Thus, an additional conductor track 15 is drawn in a protected manner within a photovoltaic module 1, 1', which connects the left part to the right part (or vice versa) of the photovoltaic module 1, 1', but without connecting the solar cells 10 or existing conductor tracks 100 to one another.

[0011] For example, an additional junction box can be installed at both ends or the existing box can be split into two cable strands on the left and right.

[0012] For example, a lower row of conductor tracks 100 can connect the solar cells 10 and generate electricity, and an upper additional conductor track 15 can ensure the return to the start / inverter.

[0013] The position of the additional conductor track 15 within the photovoltaic module 1, 1' is irrelevant for this purpose; it must not have any connection to the solar cells 10 or the other conductor tracks 100.

[0014] The solution allows any number of photovoltaic modules 1, 1' to be integrated, for example, into a fence panel and to connect them in the respective corners (top left and right, bottom left and right), for example, using posts, to the next photovoltaic module 1, 1', preferably at exactly the same location.

[0015] In a particularly advantageous embodiment of the invention, the second conductor connection 17 of a second photovoltaic module 1' is connected via a current-carrying connection 19 to the second connection 14 of the same photovoltaic module 1', in order to conduct and / or return the current generated by the at least two photovoltaic modules 1, 1' via the connected additional conductor tracks 15 of the at least two photovoltaic modules 1, 1' to the first conductor connection 16 of the first photovoltaic module 1. This embodiment is particularly relevant when the system is completed and no additional photovoltaic modules 1, 1' are required. This means that both poles, positive and negative, are available at the beginning of the fence system and can be connected directly to the inverter. Additional laying of cables through the ground or along the fence, which are potentially unsafe and dangerous, is completely eliminated.Installation effort is minimized and user-friendliness is maximized. Furthermore, cables are only visible on the inverter, not in the fence system, providing an aesthetically pleasing solution.

[0016] In a particularly preferred embodiment of the invention, the second conductor track connection 17 is formed on a first photovoltaic module 1 in order to correspond with the first conductor track connection 16 of a second photovoltaic module 1' in a form-fitting and / or force-fitting and current-carrying manner in order to enable a current-carrying connection of the additional conductor tracks 15 between at least two photovoltaic modules 1, 1'.

[0017] A further embodiment of the invention provides that the second terminal 14 is formed on a first photovoltaic module 1 to correspond with the first terminal 13 of a second photovoltaic module 1' in a form-fitting and / or force-fitting manner and in a current-carrying manner in order to enable a current-carrying connection of the conductor tracks 100 of at least two photovoltaic modules 1, 1'.

[0018] A further conceivable aspect of the invention provides that the first conductor track connection 16 and the second 17 as well as the first connection 13 and the second connection 14 are each arranged on opposite sides 18, 18' of the photovoltaic module 1, 1'.

[0019] The conductor track connection 16, 17 and a connection 13, 14 can preferably be arranged on and / or within a common connection element. Such a connection element can be, for example, a junction box that transfers the current from the solar cells, for example, on the back of the photovoltaic modules 1, 1', into a cable connection. A junction box with two cable outputs (+ pole and - pole) is preferably installed. List of reference numbers 1 first photovoltaic module 1' second photovoltaic module 10 solar cells 11 conductor tracks 12, 12' flat covers (not yet shown) 13 first connection 14 second connection 15 additional conductor tracks 16 first conductor connection 17 second conductor connection 18, 18' opposite sides of the photovoltaic module 19 live connection

Claims

[1] Photovoltaic module (1, 1') consisting of numerous solar cells (10) which are electrically interconnected by conductor tracks (100) and embedded in a transparent protective layer, wherein the protective layer with the solar cells (10) is covered on at least one side by a first transparent, flat cover (12) and on the opposite side by a second flat cover (12'), wherein the conductor tracks (11) lead in a defined grid over the solar cells (10) from a first connection (13) to a second connection (14) on the photovoltaic module (1, 1'), characterized bythat at least one additional conductor track (15) is accommodated on the photovoltaic module (1, 1') within the receiving space (19) formed by the two covers (12, 12'), which additional conductor track (15) is not connected to the conductor tracks (100) and solar cells (10) provided within the receiving space (15) of this photovoltaic module (1, 1'), which conducts current from a first conductor track connection (16) to a second conductor track connection (17) on the photovoltaic module (1, 1'). [2] Photovoltaic module (1, 1') according to claim 1, characterized by in that the second conductor track connection (17) is formed on a first photovoltaic module (1) in order to correspond with the first conductor track connection (16) of a second photovoltaic module (1') in a correspondingly form-fitting and / or force-fitting and current-carrying manner in order to enable a current-carrying connection of the additional conductor tracks (15) between at least two photovoltaic modules (1, 1'). [3] Photovoltaic module (1, 1') according to claim 1 or 2, characterized by in that the second connection (14) on a first photovoltaic module (1) is designed to correspond with the first connection (13) of a second photovoltaic module (1') in a form-fitting and / or force-fitting manner and in a current-carrying manner in order to enable a current-carrying connection of the conductor tracks (100) of at least two photovoltaic modules (1, 1'). [4] Photovoltaic module (1, 1') according to one of the preceding claims, characterized by that the first conductor track connection (16) and the second (17) as well as the first connection (13) and the second connection (14) are each arranged on opposite sides (18, 18') of the photovoltaic module (1, 1'). [5] Photovoltaic module (1, 1') according to one of the preceding claims, characterized by that a conductor track connection (16, 17) and a connection (13, 14) are arranged on and / or within a common connection element. [6] Photovoltaic module system with at least two photovoltaic modules (1, 1') according to one of the preceding claims, characterized by in that on a second photovoltaic module (1'), the second conductor track connection (17) is connected via a current-carrying connection (19) to the second connection (14) of the same photovoltaic module (1') in order to conduct and / or return the current generated by the at least two photovoltaic modules (1, 1') via the connected additional conductor tracks (15) of the at least two photovoltaic modules (1, 1') to the first conductor track connection (16) of the first photovoltaic module (1).

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