WO2015143903A1

WO2015143903A1 - Solar cell assembly

Info

Publication number: WO2015143903A1
Application number: PCT/CN2014/094979
Authority: WO
Inventors: 李蓬勃
Original assignee: 李蓬勃
Priority date: 2014-03-27
Filing date: 2014-12-25
Publication date: 2015-10-01

Abstract

Provided is a solar cell assembly, comprising: at least two solar cell units (11). Each of the solar cell units (11) comprises a cell panel (101) and an edge frame (102) arranged around the cell panel (101), wherein a plurality of positive electrodes and a plurality of negative electrodes are arranged on the edge frame (102), and the positive electrodes and the negative electrodes are arranged in pairs. The plurality of positive electrodes comprise first electrode structures (1031) and/or second electrode structures (1032); and the plurality of negative electrodes comprise the first electrode structures (1031) and/or the second electrode structures (1032). The solar cell units are connected to each other in a snap-fitting mode through the first electrode structures (1031) and the second electrode structures (1032). The solution effectively solves the technical problem in the prior art that a solar cell assembly is inconvenient to disassemble and assemble.

Description

Solar cell module

Technical field

The present invention relates to the field of solar power generation technologies, and in particular, to a solar battery module.

Background technique

At present, the solar cell module mainly includes: a conventional solar cell module and a flexible solar cell module.

Among them, the traditional solar cell module has the characteristics of large volume, hard texture, and the like, and can not achieve the effect of lightness and portability. If you want to make it splicable for easy carrying, you need to connect a certain number of solar modules together. However, the existing solar cell module circuit connections are mostly completed externally, using external connectors, wire connections, wires are hard and difficult to bend and fold, and the external wires are prone to entanglement of wires, causing the wires to fall off and break. That is, unsafe phenomena such as damage to the outer skin. The flexible solar cell module encapsulates the solar cell sheet in a flexible material (such as a cloth base and a polymer film, etc.), leaving a gap between adjacent sides of each two solar cell sheets, and connecting the respective solar battery cells in series Together, it constitutes a larger collapsible solar cell. However, such solar cells are usually of a fixed specification, that is, each solar cell module includes only a fixed number of solar cells, and cannot be disassembled and assembled to meet the individual needs of the user.

Summary of the invention

The invention provides a solar cell module for solving the technical problem of inconvenience in disassembly and assembly of the solar cell module existing in the prior art.

Embodiments of the present invention provide a solar cell module, including: at least two solar cell units, each of the solar cell units including a battery board and a frame disposed around the battery board, and the frame is provided with a plurality of positive An electrode and a plurality of negative electrodes, the positive electrode and the negative electrode being disposed in pairs;

Included in the plurality of positive electrodes as a first electrode structure and/or a second electrode structure; the plurality of negative electrodes including the first electrode structure and/or the second electrode structure;

The solar cell units are connected to each other by the first electrode structure and the second electrode structure.

The invention provides a solar cell module comprising at least two solar cell units, wherein a plurality of positive electrodes and a plurality of negative electrodes are arranged in pairs on a frame around the panel; the plurality of positive electrodes include a first electrode structure and a second electrode structure; the plurality of negative electrodes include a first electrode structure and/or a second electrode structure; to electrically connect at least two solar cells between the first electrode structure and the second electrode structure connection. The solution effectively improves the convenience of disassembly and assembly of existing solar cell modules.

DRAWINGS

1 is a schematic plan view showing the planar structure of each solar cell unit in a solar cell module according to an embodiment of the present invention;

2 is a schematic structural diagram of a first electrode structure and a second electrode structure according to an embodiment of the present invention;

3 is a schematic structural diagram of a voltage output component according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a layered structure of a solar cell unit according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. For convenience of description, the sizes of different layers and regions are enlarged or reduced, so the sizes and proportions shown in the drawings do not necessarily represent actual dimensions, nor do they reflect the proportional relationship of dimensions.

1 is a schematic plan view of a solar cell unit in a solar cell module according to an embodiment of the present invention. As shown in FIG. 1 , the solar cell module specifically includes:

At least two solar battery cells 11 each including a battery panel 101 and a bezel 102 disposed around the panel 101, the bezel 102 being provided with a plurality of positive electrodes and a plurality of negative electrodes; wherein, the positive electrodes and The negative electrodes are arranged in pairs;

The first electrode structure 1031 and/or the second electrode structure 1032 are included in the plurality of positive electrodes; the first electrode structure 1031 and/or the second electrode structure 1032 are included in the plurality of negative electrodes;

The first electrode structure 1031 and the second electrode structure 1032 pass between the solar battery cells 11 The snap connection.

Specifically, the battery board 101 is specifically a semiconductor material that can convert light energy into electrical energy directly or indirectly through a photoelectric effect or a photochemical effect, such as a compound material of single crystal silicon, polycrystalline silicon, amorphous silicon, and silicon, and an auxiliary insulating material. Made with conductive materials. A frame 102 is disposed around the panel 101. In the embodiment, the frame 102 can be formed in the panel 101, and the insulating material (outer liner) having a certain strength is extended to a certain width of the periphery of the panel 101. The resulting position structure. The frame 102 is provided with a plurality of positive electrodes and a plurality of negative electrodes; wherein the positive electrode and the negative electrode are arranged in pairs; the positive electrode of each pair of electrodes is connected with the positive output electrode of the battery board 101; and the negative electrode of each pair of electrodes The electrodes are connected to the negative output electrode of the panel 101 to output the electrical energy generated by the panel for use by an external electrical load. The first electrode structure 1031 and/or the second electrode structure 1032 are included in the plurality of positive electrodes; the first electrode structure 1031 and/or the second electrode structure 1032 are included in the plurality of negative electrodes; wherein the first electrode structure 1031 and the second electrode The electrode structure 1032 is a pair of physical connection matching structures, and the physical connection matching structure may be specifically connected in the form of a female snap connection, a bolt and nut connection, etc. In the embodiment, the first electrode structure 1031 and the second electrode structure 1032 are specifically connected. Not limited. In this embodiment, the plurality of positive electrodes or the plurality of negative electrodes may adopt the same electrode structure, such as the first electrode structure 1031 or the second electrode structure 1032; or two electrode structures, such as multiple positive The first electrode structure 1031 and the second electrode structure 1032 are included in the electrode, and the proportion of the two electrode structures in the plurality of positive electrodes is not limited; or the plurality of negative electrodes including the first electrode structure 1031 includes The second electrode structure 1032, the proportion of the two electrode structures in the plurality of negative electrodes is not limited. The solar cell units can be coupled to each other through the first electrode structure 1031 and the second electrode structure 1032, thereby implementing parallel/serial connection of the solar cell output electrodes.

As shown in FIG. 2, this embodiment provides a specific implementation manner of the first electrode structure 1031 and the second electrode structure 1032 on the basis of the embodiment shown in FIG.

The first electrode structure 1031 specifically includes a first electrode ring 211 and an annular groove 212 located below the first electrode ring 211; the second electrode structure 1032 includes a second electrode ring 221 for embedding the annular groove 212.

Specifically, the first electrode structure 1031 may be disposed on a first side of the first solar battery unit 11 of the two solar battery cells 11 to be connected, wherein the first electrode structure The first electrode ring 211 in 1031 is a ring conductor having a groove or a through hole structure at the center; and an annular groove 212 is disposed under the first electrode ring 211. The second electrode ring 221 of the second electrode structure 1032 may be disposed on the second side of the second solar cell unit 11 of the two solar cell units 11 to be connected, and also has a groove or a through hole at the center. The ring conductor of the structure. The annular groove 212 is bent toward the center of the annular structure by the external force pressing, thereby allowing the second electrode ring 221 to be freely embedded in the groove of the annular groove 212, and the first electrode structure 1031 and the second electrode structure 1032 are realized. The snap connection between the two.

Further, the first electrode structure 1031 may further include a piston 213 inserted into the first electrode ring 211 and the inner side of the annular groove 212. The piston 213 can prevent the second electrode ring 221 from being detached when it is freely inserted into the groove of the annular groove 212. Specifically, the piston 213 specifically includes a first cylindrical structure 2131 and a second cylindrical structure 2132 located below the first cylindrical structure 2131; wherein the radius of the first cylindrical structure 2131 is the same as the radius of the outer ring of the first electrode ring 211; The radius of the second cylindrical structure 2132 is slightly smaller than the inner ring radius of the annular groove 212, so that when the first electrode structure 1031 and the second electrode structure 1032 are snapped and connected, the second electrode ring 221, the annular groove 212 and the second cylinder A secure connection is achieved between the structures 2132.

Further, each of the plurality of positive electrodes and the plurality of negative electrodes disposed on the frame 102 is disposed in pairs on two laterally opposite sides of the frame 102; or, in the longitudinal direction of the frame 102 The two sides are set in pairs. In the embodiment shown in FIG. 1, the plurality of positive electrodes and the plurality of negative electrodes may be arranged in pairs in the X direction (lateral direction) on the frame 102, or may be paired in the Y direction (longitudinal direction) on the frame 102. The setting can also be set in pairs in the X direction and the Y direction at the same time, which is not limited in this embodiment.

Further, as shown in FIG. 3, the solar cell module of this embodiment may further include a voltage output component 12;

The voltage output unit 12 specifically includes a voltage conversion unit 121 and a frame 122 disposed around the voltage conversion unit. The frame 122 is provided with an input positive electrode 123 and an input negative electrode 124 electrically connected to the voltage conversion unit 121. The voltage conversion unit 121 can convert a fixed output voltage into a voltage outputted by an interface of another powered device, such as a Universal Serial Bus (USB), a car cigarette lighter interface, or the like. The voltage conversion unit 121 may specifically be a voltage conversion circuit or a conversion device such as a transformer or the like.

The input positive electrode 123 is specifically the first electrode structure 1031 or the second electrode structure. 1032, the card is connected to the positive electrode on the at least two solar cells 11; the input negative electrode 124 is the first electrode structure 1031 or the second electrode structure 1032, and the at least two solar cells The negative electrode on the 11 is snap-fitted.

Further, the solar cell unit 11 includes a first insulating layer 1011, a first electrode layer 1012, a second insulating layer 1013, a second electrode layer 1014, a third insulating layer 1015, a photovoltaic panel 1016, and a waterproof layer 1017. The edge regions of the first insulating layer 1011, the second insulating layer 1013 and the third insulating layer 1015 constitute the above-mentioned frame 102;

The first electrode layer 1012 is connected to a plurality of positive electrodes disposed on the frame 102, and the second electrode layer 1014 is connected to the plurality of negative electrodes disposed on the frame 102 to realize the extraction of the positive and negative electrodes of the solar cell unit 11;

Further, in the embodiment shown in FIG. 4, each of the above photovoltaic panels 1016 includes a positive electrode contact region and a negative electrode contact region for respectively extracting positive and negative output terminals of the voltage generated by the photovoltaic panel 1016, wherein the photovoltaic panel The positive electrode contact region of 1016 is electrically connected to the first electrode layer 1012, and the negative electrode contact region of the photovoltaic panel 1016 is electrically connected to the second electrode layer 1014, thereby drawing a voltage for external electrical load. In this embodiment, in order to ensure the normal operation of each solar cell unit 11, a protection circuit is added; the protection circuit specifically includes a diode; the anode of the diode is electrically connected to the positive contact area of the photovoltaic panel 1016, and the diode is The negative electrode is electrically connected to the first electrode layer 1012; or the positive electrode of the diode is electrically connected to the second electrode layer 1014, and the negative electrode of the diode is electrically connected to the negative electrode contact region of the photovoltaic panel 1016. The diode has its own unidirectional conductive feature, so that the current flow between the positive and negative contact regions of the photovoltaic panel 1016 and the corresponding electrode layer in each solar cell unit 11 in the solar cell module is fixed, thereby avoiding the current in each solar cell unit 11. Problems such as internal friction, short circuit or damage caused by unstable flow.

Further, in order to stably position the solar cell module connected by the plurality of solar cells 11 to a designated position, in the embodiment, a plurality of fixing holes are further disposed on the frame 102. These fixing holes can be easily hung on the raised structure such as the hook.

The solar cell module provided by the present invention comprises at least two solar cell units, each solar cell unit comprises a battery board and a frame disposed around the panel, the frame is provided with a plurality of positive electrodes and a plurality of negative electrodes, The positive electrode and the negative electrode are disposed in pairs; the plurality of positive electrodes include a first electrode structure and/or a second electrode structure; and the plurality of negative electrodes include the first electrode a pole structure and/or a second electrode structure; the solar cell units are connected by a first electrode structure and a second electrode structure. The technical solution effectively improves the convenience of disassembly and assembly of existing solar battery components.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A solar cell module, comprising: at least two solar cell units, each of the solar cell units comprising a battery board and a frame disposed around the battery board, the frame being provided with a plurality of positive electrodes And a plurality of negative electrodes, the positive electrode and the negative electrode being disposed in pairs;

Included in the plurality of positive electrodes as a first electrode structure and/or a second electrode structure; the plurality of negative electrodes including the first electrode structure and/or the second electrode structure;

The solar cell units are connected to each other by the first electrode structure and the second electrode structure.
The solar cell module according to claim 1, wherein the first electrode structure comprises a first electrode ring and an annular groove under the first electrode ring;

The second electrode structure includes a second electrode ring for embedding the annular groove.
The solar cell module according to claim 2, wherein the first electrode structure further comprises: a piston inserted into the first electrode ring and inside the annular groove.
The solar cell module according to claim 3, wherein the piston specifically comprises: a first cylindrical structure and a second cylindrical structure located below the first cylindrical structure.
The solar cell module according to any one of claims 1 to 4, wherein each of the pair of the positive electrode and the negative electrode are arranged in pairs on two laterally opposite sides of the bezel; or They are arranged in pairs on the two opposite longitudinal sides of the bezel.
The solar cell module according to any one of claims 1 to 4, further comprising: a voltage output member;

The voltage output unit includes a voltage conversion unit, and a frame disposed around the voltage conversion unit, and the frame is provided with an input positive electrode and an input negative electrode electrically connected to the voltage conversion unit;

The input positive electrode is the first electrode structure or the second electrode structure to be engaged with the positive electrode on the at least two solar cells; the input negative electrode is the first electrode a structure or the second electrode structure to be snap-fitted to the negative electrode on the at least two solar cells.
The solar cell module according to any one of claims 1 to 4, wherein The solar cell unit includes: a first insulating layer, a first electrode layer, a second insulating layer, a second electrode layer, a third insulating layer, a photovoltaic panel and a waterproof layer, the first insulating layer, the second layer An insulating layer and an edge region of the third insulating layer constitute the frame;

The first electrode layer is connected to a plurality of positive electrodes disposed on the frame, and the second electrode layer is connected to a plurality of negative electrodes disposed on the frame.
The solar cell module according to claim 7, further comprising a protection circuit;

The photovoltaic panel includes a positive electrode contact region and a negative electrode contact region;

The protection circuit includes a diode, a positive pole of the diode is electrically connected to a positive contact region of the photovoltaic panel, and a cathode of the diode is electrically connected to the first electrode layer; or a positive pole of the diode is The second electrode layer is electrically connected, and a cathode of the diode is electrically connected to a negative contact region of the photovoltaic panel.
The solar cell module according to any one of claims 1 to 4, wherein the frame is further provided with a plurality of fixing holes.