Photovoltaic board wire jumper wiring structure
Technical Field
The utility model belongs to the photovoltaic power generation field, concretely relates to photovoltaic board wire jumper wiring structure.
Background
In order to adapt to development and requirements, an environment-friendly and energy-saving road is taken, and photovoltaic energy is increasingly constructed and popularized. The application of the photovoltaic energy can realize energy conservation, reduce energy consumption and meet the urgent requirement of protecting the ecological environment.
Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. The solar energy power generation system mainly comprises a solar panel (assembly), a controller and an inverter. The solar cell panels are connected in series and then are packaged and protected to form a large-area solar cell module, and then the solar cell module is matched with components such as a power controller to form the photovoltaic power generation device. When the photovoltaic panel leaves a factory, the back of each photovoltaic panel is provided with a positive outgoing line and a negative outgoing line. The photovoltaic panels are connected through the positive and negative lead-out wires, and the external cables are led into the inverter to complete power generation. However, when wiring is carried out between the photovoltaic panels, the change of the wiring modes of the positive electrode and the negative electrode directly influences the use quantity of the external cables in construction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem that the external cable quantity is big among the above-mentioned prior art in the photovoltaic direct current cable construction, electric energy loss is high in the cable, provide a photovoltaic board wire jumper wiring structure, use wire jumper wiring mode, reduce the loss of electric energy in the cable, save material, reduction construction cost improve the generated energy.
In order to achieve the above object, the present invention provides the following technical solutions:
a jumper wire connection structure of a photovoltaic panel comprises a photovoltaic panel external positive lead, a photovoltaic panel external negative lead, a photovoltaic panel self-contained negative lead and a photovoltaic panel self-contained positive lead; the photovoltaic panel is connected with the inverter through the photovoltaic panel self-contained cathode lead and the photovoltaic panel self-contained anode lead; sequencing the photovoltaic panels, wherein the inverter is connected with the anode of the first photovoltaic panel through an external anode lead of the photovoltaic panel and is connected with the cathode of the second photovoltaic panel through an external cathode lead of the photovoltaic panel;
the photovoltaic panel is provided with a negative lead and a positive lead, the photovoltaic panels with odd numbers and even numbers are connected in a mode that the positive and negative electrodes are connected respectively, and two adjacent photovoltaic panels at the tail end are connected independently.
As the utility model discloses photovoltaic board wire jumper wiring structure's an preferred scheme, the external positive lead wire of photovoltaic board, the external negative pole lead wire of photovoltaic board, the photovoltaic board from taking negative pole lead wire and photovoltaic board from taking anodal lead wire and all connecting at the back of photovoltaic board, the anodal and negative pole hookup location setting of photovoltaic board are in both sides.
As the utility model discloses a photovoltaic board wire jumper wiring structure's an preferred scheme, a plurality of photovoltaic board negative pole and negative pole next-door neighbour, positive pole and anodal close proximity of two adjacent photovoltaic boards in the range process.
As the utility model discloses a preferred scheme of photovoltaic board wire jumper wiring structure, if the quantity of photovoltaic board is the even number, and the positive pole of terminal photovoltaic board is connected with the negative pole of preceding photovoltaic board.
As the utility model discloses a photovoltaic board wire jumper wiring structure's an preferred scheme, if photovoltaic board quantity be the odd number, the negative pole of terminal photovoltaic board is connected with the positive pole of preceding photovoltaic board.
As the utility model discloses photovoltaic board wire jumper wiring structure's an preferred scheme, the photovoltaic board be provided with a plurality of row, each row is provided with a plurality of photovoltaic board, the dc-to-ac converter is connected with each row photovoltaic board.
As the utility model discloses photovoltaic board wire jumper wiring structure's an preferred scheme, photovoltaic board quantity in the middle of each row photovoltaic board equals, and photovoltaic board quantity in the middle of each row photovoltaic board is even number or odd.
As the utility model discloses a photovoltaic board wire jumper wiring structure's an preferred scheme, photovoltaic board quantity in the middle of each row photovoltaic board varies, and photovoltaic board quantity in the middle of each row photovoltaic board includes even number and odd number.
Compared with the prior art, the utility model discloses following beneficial effect:
the utility model discloses photovoltaic board wire jumper wiring structure adopts the mode of photovoltaic board wire jumper wiring, has improved just, negative pole wiring mode between the traditional photovoltaic board. According to the principle that the positive electrode and the negative electrode of the photovoltaic panel are connected, a jumper wire connection mode is used, namely odd photovoltaic panels are connected, and even photovoltaic panels are connected. The purpose of saving the using amount of the photovoltaic direct-current cable in construction is achieved, and the construction efficiency is improved. The utility model discloses can reduce the loss of electric energy in the cable, reduce construction cost, improve the generated energy.
Drawings
Fig. 1 is a schematic view of a connection structure of an even number of photovoltaic panels according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of two rows of even-numbered photovoltaic panels according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection structure of an odd number of photovoltaic panels according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of a double row odd-numbered photovoltaic panel according to an embodiment of the present invention;
in the drawings: 1-a photovoltaic panel; 2, connecting the photovoltaic panel with an anode lead; 3-the photovoltaic panel is externally connected with a negative lead; 4, the photovoltaic panel is provided with a negative lead; 5, the photovoltaic panel is provided with a positive electrode lead; 6-inverter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "constructed," "installed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model discloses a photovoltaic board wire jumper wiring structure, which comprises a photovoltaic board external positive lead 2, a photovoltaic board external negative lead 3, a photovoltaic board self-contained negative lead 4 and a photovoltaic board self-contained positive lead 5; the photovoltaic panel is connected with the photovoltaic panel 1 through the negative lead 4 and the positive lead 5, and the photovoltaic panel is connected with the inverter 6 through the external positive lead 2 and the external negative lead 3. During connection, the photovoltaic panels 1 are sequenced, then the inverter 6 is connected with the anode of the first photovoltaic panel 1 through the photovoltaic panel external anode lead 2, and is connected with the cathode of the second photovoltaic panel 1 through the photovoltaic panel external cathode lead 3, the photovoltaic panel 1 can be provided with a plurality of rows, each row is provided with a plurality of photovoltaic panels 1, and the inverter 6 is simultaneously connected with each row of photovoltaic panels 1 in the same way. Photovoltaic panels with odd serial numbers and photovoltaic panels with even serial numbers are connected with the photovoltaic panels 1 with the odd serial numbers and the photovoltaic panels with the even serial numbers respectively according to the mode that the positive electrodes are connected with the negative electrodes through the negative electrode lead wires 4 and the positive electrode lead wires 5, and two adjacent photovoltaic panels 1 at the tail ends are connected independently. In the embodiment, a photovoltaic panel external positive lead 2, a photovoltaic panel external negative lead 3, a photovoltaic panel self negative lead 4 and a photovoltaic panel self positive lead 5 are all connected to the back of the photovoltaic panel 1, and the positive and negative connection positions of the photovoltaic panel 1 are arranged on both sides. The negative electrodes and the negative electrodes of the two adjacent photovoltaic panels 1 are adjacent to each other, and the positive electrodes of the two adjacent photovoltaic panels 1 are adjacent to each other in the arrangement process of the plurality of photovoltaic panels 1. If the number of photovoltaic panels 1 is even, the positive pole of the last photovoltaic panel 1 is connected to the negative pole of the previous photovoltaic panel 1. If the number of the photovoltaic panels 1 is odd, the negative electrode of the photovoltaic panel 1 at the tail end is connected with the positive electrode of the previous photovoltaic panel 1. Optionally, the number of the photovoltaic panels 1 in each row of the photovoltaic panels 1 is equal, and the number of the photovoltaic panels 1 in each row of the photovoltaic panels 1 is even or odd. Alternatively, the number of photovoltaic panels 1 in each row of photovoltaic panels 1 is different, and the number of photovoltaic panels 1 in each row of photovoltaic panels 1 includes even numbers and odd numbers.
The first embodiment is as follows: referring to fig. 1, the photovoltaic panel jumper wiring structure can be realized in such a way that a photovoltaic panel with a negative lead 4 and a photovoltaic panel with a positive lead 5 are connected to the back of a photovoltaic panel 1, the photovoltaic panel with the negative lead 4 and the photovoltaic panel with the positive lead 5 are arranged on two sides of the photovoltaic panel 1, an external positive lead 2 of the photovoltaic panel is connected with an inverter 6 through the photovoltaic panel 1 arranged on a first position, and an external negative lead 3 of the photovoltaic panel is connected with the inverter 6 through the photovoltaic panel 1 arranged on a second position. The two photovoltaic panels 1 at the extreme positions are connected through a negative lead 4 of the photovoltaic panel and a positive lead 5 of the photovoltaic panel.
Example two: as can be seen from fig. 1 and 2, when the arrangement of the photovoltaic panels 1 on the photovoltaic support is a double-row arrangement, the photovoltaic panel jumper connection structure in the first embodiment may also be used for connection.
Example three: as shown in fig. 1 and fig. 3, when the number of the connection blocks of the photovoltaic panel 1 is odd, the connection can also be performed by using the jumper connection structure of the photovoltaic panel according to the first embodiment.
Example four: as shown in fig. 3 and 4, when the number of the connection blocks of the photovoltaic panel 1 is odd and the connection blocks are arranged in two rows, the connection can be performed by using the jumper connection structure of the photovoltaic panel in the third embodiment.
The utility model discloses according to the positive principle that is connected with the negative pole of photovoltaic board, use the wire jumper wiring mode, make odd number photovoltaic board be connected, even number photovoltaic board is connected. The purpose of saving the using amount of the photovoltaic direct-current cable in construction is achieved, and the construction efficiency is improved. The loss of electric energy in the cable can be reduced, the construction cost is reduced, and the generating capacity is improved.
The present invention has been described in detail with reference to the specific embodiments and examples, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as falling within the scope of the invention.