Photovoltaic module and photovoltaic system

Abstract

This application discloses a photovoltaic module and a photovoltaic system, belonging to the field of photovoltaic technology. The photovoltaic module includes a module body, which comprises an upper half and a lower half distributed along a vertical direction. The upper half is provided with at least one first solar cell, and the lower half is provided with at least one second solar cell. The first and second solar cells are solar cells with different segments. The photovoltaic system provided in this application allows the junction box to be located at the boundary between the upper and lower halves. Since the first and second solar cells are solar cells with different segments, the module body can be selectively mounted upright or upside down, allowing the junction box to be closer to the upper part of the balcony, i.e., closer to the user, facilitating user operation of the wiring terminals, reducing maintenance difficulty, and improving maintenance convenience.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic technology, and in particular relates to a photovoltaic module and a photovoltaic system. Background Technology

[0002] Currently, balcony photovoltaic systems typically use brackets to fix the photovoltaic modules to the outside of the balcony. The junction boxes are usually located near the bottom of the balcony, which is a low position. This means that users need to lean out of the window or be on the outside of the balcony to operate the wiring terminals, increasing the difficulty of maintenance and leaving room for improvement. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a photovoltaic module in which the junction box is positioned close to the upper part of the balcony, i.e., close to the user, to facilitate user operation of the wiring terminals, thereby reducing maintenance difficulty and improving maintenance convenience.

[0004] In a first aspect, this application provides a photovoltaic module, comprising: a module body, the module body comprising an upper half and a lower half distributed along a vertical direction, the upper half having at least one first solar cell, and the lower half having at least one second solar cell, wherein the first solar cell and the second solar cell are solar cells with different segments.

[0005] According to the photovoltaic module of this application, by setting the first solar cell in the upper half and the second solar cell in the lower half, interference between the first and second solar cells can be avoided, improving the reliability of the module's operation. Simultaneously, the junction box can be positioned at the boundary between the upper and lower halves, allowing it to be close to both the first and second solar cells simultaneously. This facilitates connection between the junction box and the first and second solar cells, forming a circuit with specific voltage and current output. Furthermore, since the first and second solar cells are different segments, the module can be selectively mounted upright or upside down, allowing the junction box to be positioned towards the upper part of the balcony, thus facilitating user access to the terminals and reducing maintenance difficulty and convenience.

[0006] According to one embodiment of this application, the first battery cell is constructed to be smaller than the second battery cell; wherein, the first battery cell is constructed as a three-part battery cell and the second battery cell is constructed as a two-part battery cell, or the first battery cell is constructed as a four-part battery cell and the second battery cell is constructed as a two-part battery cell, or the first battery cell is constructed as a four-part battery cell and the second battery cell is constructed as a three-part battery cell; or, the first battery cell is constructed to be larger than the second battery cell; wherein, the first battery cell is constructed as a two-part battery cell and the second battery cell is constructed as a three-part battery cell, or the first battery cell is constructed as a three-part battery cell and the second battery cell is constructed as a four-part battery cell, or the first battery cell is constructed as a two-part battery cell and the second battery cell is constructed as a four-part battery cell.

[0007] According to one embodiment of this application, the overall size of the first battery cell is smaller than the overall size of the second battery cell.

[0008] According to one embodiment of this application, there are multiple first battery cells and multiple second battery cells, and the number of first battery cells is the same as the number of second battery cells.

[0009] According to one embodiment of this application, the first battery cell is configured such that its width in the vertical direction is less than the width of the second battery cell in the vertical direction; and / or, the first battery cell is configured such that its length in the horizontal direction is less than or equal to the length of the second battery cell in the horizontal direction.

[0010] According to one embodiment of this application, the arrangement of the plurality of first battery cells is the same as the arrangement of the plurality of second battery cells.

[0011] Secondly, this application provides a photovoltaic system, including a junction box, a micro-inverter, and a photovoltaic module as described in any of the above embodiments. The junction box is located at the boundary between the upper and lower halves, and the micro-inverter is electrically connected to the junction box of the photovoltaic module via photovoltaic cables.

[0012] According to the photovoltaic system of this application, photovoltaic modules can absorb solar energy and generate direct current (DC) to realize the power generation function of the photovoltaic system. A micro-inverter can convert DC to AC to meet the user's needs. The micro-inverter is electrically connected to the junction box of the photovoltaic modules through photovoltaic cables, so that the photovoltaic cables can transmit the DC generated by the photovoltaic modules to the micro-inverter, and then the micro-inverter can convert it into AC for household use to meet the user's needs.

[0013] According to one embodiment of this application, there are multiple photovoltaic modules, and the junction boxes of the multiple photovoltaic modules are connected in series with the photovoltaic cable; wherein the junction boxes of the multiple photovoltaic modules are distributed facing each other in the horizontal direction.

[0014] According to one embodiment of this application, the microinverter is positioned above the height of the centerline of the main body of the component in the vertical direction; and / or, there are multiple photovoltaic modules, and each of the multiple photovoltaic modules is electrically connected to the microinverter.

[0015] According to one embodiment of this application, the photovoltaic module is suitable for longitudinal installation on a balcony; wherein the photovoltaic module has multiple cell areas distributed in the left-right direction, and each pair of adjacent cell areas is independently equipped with a miniature bypass diode.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is one of the structural schematic diagrams of the photovoltaic module provided in the embodiments of this application;

[0019] Figure 2 This is a second schematic diagram of the structure of the photovoltaic module provided in the embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the photovoltaic system provided in the embodiments of this application.

[0021] Figure label:

[0022] Photovoltaic modules 100, photovoltaic system 200

[0023] Component body 1, upper part 11, first solar cell 111, lower part 12, second solar cell 121, junction box 2, solar cell area 3, miniature bypass diode 4,

[0024] Micro inverter 201, photovoltaic cable 202. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] The following is for reference. Figures 1-3 According to the embodiments of this application, the photovoltaic module 100 can be positioned so that the junction box 2 is close to the upper part of the balcony, that is, close to the user, so that the user can operate the wiring terminals, thereby reducing maintenance difficulty and improving maintenance convenience.

[0027] In this embodiment, the photovoltaic module 100 includes: module body 1 and junction box 2.

[0028] The main body of the module 1 includes an upper half 11 and a lower half 12 distributed in the vertical direction. The upper half 11 is provided with at least one first battery cell 111, and the lower half 12 is provided with at least one second battery cell 121. The first battery cell 111 and the second battery cell 121 are battery cells with different segments, that is, the first battery cell 111 and the second battery cell 121 can adopt different segmentation technologies so that the dividing line between the upper half 11 and the lower half 12 is staggered from the center line of the main body of the module 1.

[0029] It is understandable that the photovoltaic module 100 is used to convert solar energy into electrical energy to replace traditional fossil fuel power generation and reduce the consumption of non-renewable resources such as coal and natural gas. The photovoltaic module 100 includes a module body 1, which is used to receive solar energy and convert it into electrical energy.

[0030] The main body 1 of the module includes an upper part 11 and a lower part 12 distributed in the vertical direction. The upper part 11 and the lower part 12 can be spliced ​​together in the vertical direction to form the main body 1 of the module. A first solar cell 111 is provided in the upper part 11 and a second solar cell 121 is provided in the lower part 12. The first solar cell 111 and the second solar cell 121 are the core components of the photovoltaic module 100, which are used to receive solar energy and convert solar energy into electrical energy. That is, the photovoltaic module 100 can realize the power generation function through the first solar cell 111 and the second solar cell 121. The upper part 11 and the lower part 12 are distributed in the vertical direction, which means that the first solar cell 111 and the second solar cell 121 are spaced apart in the vertical direction to avoid interference between the first solar cell 111 and the second solar cell 121, which would reduce the power generation efficiency. This improves the reliability of the operation of the first solar cell 111 and the second solar cell 121, and thus improves the reliability of the operation of the main body 1 of the module.

[0031] Furthermore, there is at least one first solar cell 111 and at least one second solar cell 121. That is, the number of first solar cells 111 and second solar cells 121 can be one, two, three or more. Thus, at least one first solar cell 111 and at least one second solar cell 121 can be used together to convert solar energy, which can improve the reliability and efficiency of the module body 1 and increase the output voltage and / or output current of the module body 1 to meet the user's needs.

[0032] Furthermore, slicing involves cutting a standard-sized battery cell into several identical battery cells, such as cutting a standard-sized battery cell into two, three, or four identical battery cells, making the battery cell a two-part, three-part, or four-part battery cell, etc. The first battery cell 111 and the second battery cell 121 can be constructed as battery cells with different slicing, such as the first battery cell 111 and the second battery cell 121 can be constructed as a two-part battery cell and a three-part battery cell, or the first battery cell 111 and the second battery cell 121 can be constructed as a two-part battery cell and a four-part battery cell, etc. This allows the first battery cell 111 and the second battery cell 121 to have different areas, and there is a dividing line between the upper half 11 and the lower half 12. The dividing line is used to separate the upper half 11 and the lower half 12, that is, it can also separate the first battery cell 111 located in the upper half 11 and the second battery cell 121 located in the lower half 12, so as to improve the reliability of their respective operation.

[0033] In practical design, the junction box 2 can be set at the dividing line between the upper half 11 and the lower half 12, that is, the junction box 2 can be set between the upper half 11 and the lower half 12, so that the junction box 2 can be close to the first battery cell 111 and the second battery cell 121 at the same time, which makes it easy to connect the junction box 2 to the first battery cell 111 and the second battery cell 121 to form a circuit with specific voltage and current output. Since the first battery cell 111 and the second battery cell 121 are battery cells with different segments, the setting position of the junction box 2 can be staggered from the center line of the component body 1, and the junction box 2 can be set towards the end of the battery cell with multiple segments on the component body 1.

[0034] The photovoltaic module 100 of this application can be installed on the outside of the balcony. When installing the module body 1, the end with more solar cells can be set towards the upper part of the balcony, and the end with fewer solar cells can be set towards the lower part of the balcony. The module body 1 can be selectively installed upright or upside down according to the division of the first solar cell 111 and the second solar cell 121, so that the junction box 2 can be close to the upper part of the balcony, that is, close to the user. In this way, when the user operates the wiring terminals, he / she can avoid leaning out of the balcony or being on the outside of the balcony, which can effectively reduce the difficulty of maintenance.

[0035] According to the photovoltaic module 100 provided in the embodiments of this application, by setting the first solar cell 111 in the upper half 11 and the second solar cell 121 in the lower half 12, interference between the first solar cell 111 and the second solar cell 121 can be avoided, improving the reliability of the module body 1. At the same time, the junction box 2 can be set at the boundary line between the upper half 11 and the lower half 12, so that the junction box 2 can be close to both the first solar cell 111 and the second solar cell 121 at the same time, so as to connect the junction box 2 with the first solar cell 111 and the second solar cell 121 to form a circuit with specific voltage and current output. Moreover, the first solar cell 111 and the second solar cell 121 are solar cells with different segments, so the module body 1 can be selectively installed upright or upside down, so that the junction box 2 can be close to the upper end of the balcony, that is, close to the user, so as to facilitate the user to operate the wiring terminals, reduce the maintenance difficulty, and improve the maintenance convenience.

[0036] In some embodiments, the first battery cell 111 is configured to be smaller than the second battery cell 121; wherein the first battery cell 111 is configured as a three-part battery cell and the second battery cell 121 is configured as a two-part battery cell, or the first battery cell 111 is configured as a four-part battery cell and the second battery cell 121 is configured as a two-part battery cell, or the first battery cell 111 is configured as a four-part battery cell and the second battery cell 121 is configured as a three-part battery cell.

[0037] It should be noted that a two-part battery cell is made by cutting a standard-sized battery cell into two identical battery cells, each of which is a two-part battery cell. A three-part battery cell is made by cutting a standard-sized battery cell into three identical battery cells, each of which is a three-part battery cell. A four-part battery cell is made by cutting a standard-sized battery cell into four identical battery cells, each of which is a four-part battery cell. The cutting of a standard-sized battery cell into two-part, three-part, or four-part battery cells is usually done in the width direction of the battery cell, so that the first battery cell 111 and the second battery cell 121 have the same length in the horizontal direction.

[0038] In practical design, the first solar cell 111 can be constructed to be smaller than the second solar cell 12. In this case, the main body 1 of the module can be mounted upright, so that the dividing line between the upper half 11 and the lower half 12 is located above the center line of the main body 1 of the module, and the junction box 2 can be set facing the upper end of the balcony. Figure 1As shown, the first battery cell 111 can be constructed as a three-part battery cell, and the second battery cell 121 can be constructed as a two-part battery cell. This makes the width of the first battery cell 111 in the vertical direction smaller than the width of the second battery cell 121 in the vertical direction. Consequently, the width of the upper half 11 in the vertical direction is smaller than the width of the lower half 12 in the vertical direction. In this way, when the junction box 2 is placed at the dividing line between the upper half 11 and the lower half 12, the junction box 2 can be closer to the user, thereby reducing the difficulty of maintenance.

[0039] Or, such as Figure 2 As shown, the first battery cell 111 can be constructed as a quarter battery cell, and the second battery cell 121 can be constructed as a half battery cell. This allows the width of the first battery cell 111 in the vertical direction to be smaller than the width of the second battery cell 121 in the vertical direction. Consequently, the width of the upper half 11 in the vertical direction can be smaller than the width of the lower half 12 in the vertical direction. In this way, when the junction box 2 is placed at the dividing line between the upper half 11 and the lower half 12, the junction box 2 can be placed close to the user, making it convenient for the user to operate the wiring terminals.

[0040] Alternatively, the first battery cell 111 can be constructed as a quarter battery cell, and the second battery cell 121 can be constructed as a third battery cell. This would make the width of the first battery cell 111 in the vertical direction smaller than the width of the second battery cell 121 in the vertical direction. Consequently, the width of the upper half 11 in the vertical direction would be smaller than the width of the lower half 12 in the vertical direction. In this way, when the junction box 2 is placed at the dividing line between the upper half 11 and the lower half 12, the junction box 2 can be positioned closer to the user.

[0041] In other embodiments, the first battery cell 111 is configured to be larger than the second battery cell 121; wherein the first battery cell 111 is configured as a two-part battery cell and the second battery cell 121 is configured as a three-part battery cell, or the first battery cell 111 is configured as a three-part battery cell and the second battery cell 121 is configured as a four-part battery cell, or the first battery cell 111 is configured as a two-part battery cell and the second battery cell 121 is configured as a four-part battery cell.

[0042] In practical design, the first battery cell 111 can be constructed to be larger than the second battery cell 121. In this case, the main body 1 of the module can be inverted, so that the dividing line between the upper half 11 and the lower half 12 is closer to the upper end of the balcony, and the junction box 2 can be set facing the upper end of the balcony. Specifically, the first battery cell 111 can be constructed as a two-part battery cell, and the second battery cell 121 can be constructed as a three-part battery cell. This makes the width of the first battery cell 111 in the vertical direction greater than the width of the second battery cell 121 in the vertical direction, and thus the width of the upper half 11 in the vertical direction greater than the width of the lower half 12 in the vertical direction. In this way, when the main body 1 of the module is inverted, the junction box 2 can be closer to the upper end of the balcony, that is, closer to the user, thereby reducing maintenance difficulty.

[0043] Alternatively, the first battery cell 111 can be constructed as a three-part battery cell, and the second battery cell 121 can be constructed as a four-part battery cell. This would make the width of the first battery cell 111 in the vertical direction greater than the width of the second battery cell 121 in the vertical direction. Consequently, the width of the upper half 11 in the vertical direction would be greater than the width of the lower half 12 in the vertical direction. In this way, when the main body 1 of the component is inverted, the junction box 2 can be moved closer to the upper end of the balcony, that is, closer to the user, so that the user can operate the wiring terminals.

[0044] Alternatively, the first battery cell 111 can be constructed as a two-part battery cell, and the second battery cell 121 can be constructed as a four-part battery cell. This would allow the width of the first battery cell 111 in the vertical direction to be greater than the width of the second battery cell 121 in the vertical direction. Consequently, the width of the upper part 11 in the vertical direction would be greater than the width of the lower part 12 in the vertical direction. In this way, when the main body 1 of the component is inverted, the junction box 2 can be positioned closer to the user.

[0045] Therefore, it should be noted that the size of the first battery cell 111 and the size of the second battery cell 121 are not limited to those described in this embodiment, and can be flexibly selected according to actual needs and space availability.

[0046] In some embodiments, the overall size of the first battery cell 111 is smaller than the overall size of the second battery cell 121.

[0047] It is understandable that the first battery cell 111 is located in the upper half 11 of the main body 1 of the module, and the second battery cell 121 is located in the lower half 12 of the main body 1 of the module. By constructing the overall size of the first battery cell 111 to be smaller than the overall size of the second battery cell 121, the installation area of ​​the first battery cell 111 can be smaller than the installation area of ​​the second battery cell 121. Consequently, the overall size of the upper half 11 can be smaller than the overall size of the lower half 12. Thus, the width of the upper half 11 in the vertical direction can be smaller than the width of the lower half 12 in the vertical direction. Therefore, when the junction box 2 is set at the dividing line between the upper half 11 and the lower half 12, the junction box 2 can be located above the center line of the main body 1 in the vertical direction. This allows the junction box 2 to be closer to the upper end of the main body 1, and also closer to the user, for easy operation by the user.

[0048] In some embodiments, there are multiple first battery cells 111 and multiple second battery cells 121, and the number of first battery cells 111 is the same as the number of second battery cells 121.

[0049] It is understood that there are multiple first solar cells 111 and multiple second solar cells 121, that is, the number of first solar cells 111 and the number of second solar cells 121 can be two, three or more. In this way, multiple first solar cells 111 and multiple second solar cells 121 can be used together to convert solar energy, which can effectively improve the reliability and efficiency of the module body 1 and increase the output voltage and / or output current of the module body 1 to meet the user's needs.

[0050] Furthermore, the number of first battery cells 111 is the same as the number of second battery cells 121, and the overall size of the first battery cells 111 is smaller than the overall size of the second battery cells 121. This means that the space occupied by multiple first battery cells 111 is smaller than the space occupied by multiple second battery cells 121, and the setting area of ​​the upper half 11 is smaller than the setting area of ​​the lower half 12. This also means that the width of the upper half 11 along the vertical direction is smaller than the width of the lower half 12 along the vertical direction. As a result, when the junction box 2 is set at the dividing line between the upper half 11 and the lower half 12, it can be ensured that the junction box 2 can be close to the upper end of the component body 1, that is, close to the user, so as to reduce the difficulty of maintenance.

[0051] It should be noted that multiple first solar cells 111 can be neatly arranged in the upper half 11 of the photovoltaic module 100, such as in an array, to improve space utilization. This can increase the number of first solar cells 111 and further improve the reliability and efficiency of the module body 1. At the same time, multiple second solar cells 121 can be neatly arranged in the lower half 12 of the photovoltaic module 100, such as in an array, to improve space utilization. This can increase the number of second solar cells 121 and further improve the reliability and efficiency of the module body 1.

[0052] In some embodiments, the first battery cell 111 is configured such that its width in the vertical direction is less than the width of the second battery cell 121 in the vertical direction; and / or, the first battery cell 111 is configured such that its length in the horizontal direction is less than or equal to the length of the second battery cell 121 in the horizontal direction.

[0053] It should be noted that by constructing the first battery cell 111 so that its width in the vertical direction is smaller than that of the second battery cell 121 in the vertical direction, the total width of the multiple first battery cells 111 in the vertical direction is smaller than the total width of the multiple second battery cells 121 in the vertical direction. Consequently, the width of the upper part 11 in the vertical direction is smaller than that of the lower part 12 in the vertical direction. Thus, when the junction box 2 is placed at the dividing line between the upper part 11 and the lower part 12, the junction box 2 can be located above the centerline of the main body 1 in the vertical direction, which allows the junction box 2 to be closer to the user, thereby reducing maintenance difficulty and improving maintenance convenience.

[0054] Meanwhile, the first battery cell 111 can be configured such that its length in the horizontal direction is less than or equal to the length of the second battery cell 121 in the horizontal direction. This makes the area of ​​the first battery cell 111 smaller than the area of ​​the second battery cell 121, and the space occupied by multiple first battery cells 111 is smaller than the space occupied by multiple second battery cells 121. Consequently, the area of ​​the upper half 11 is smaller than the area of ​​the lower half 12. This also makes the width of the upper half 11 in the vertical direction smaller than the width of the lower half 12 in the vertical direction. Therefore, when the junction box 2 is placed at the dividing line between the upper half 11 and the lower half 12, the junction box 2 can be located above the centerline of the main body 1 in the vertical direction, so that the junction box 2 is closer to the user, thereby reducing the difficulty of maintenance.

[0055] Among them, in such Figures 1-3 In the embodiment shown, the length of the first battery cell 111 in the horizontal direction is equal to the length of the second battery cell 121 in the horizontal direction, so that the length of the upper part 11 in the horizontal direction is the same as the length of the lower part 12 in the horizontal direction.

[0056] In some embodiments, the arrangement of the plurality of first battery cells 111 is the same as the arrangement of the plurality of second battery cells 121.

[0057] It should be noted that the upper part 11 is provided with multiple first battery cells 111, which are arranged neatly in the upper part 11. The lower part 12 is provided with multiple second battery cells 121, which are arranged neatly in the lower part 12. The number of first battery cells 111 is the same as the number of second battery cells 121, so that the arrangement of the multiple first battery cells 111 is the same as the arrangement of the multiple second battery cells 121. This ensures that the positions of the multiple first battery cells 111 and the positions of the multiple second battery cells 121 correspond one-to-one. That is, for each first battery cell 111, there is a corresponding second battery cell 121.

[0058] Furthermore, since the width of the first battery cell 111 in the vertical direction is smaller than the width of the second battery cell 121 in the vertical direction, the total width of the multiple first battery cells 111 in the vertical direction is smaller than the total width of the multiple second battery cells 121 in the vertical direction. Consequently, the width of the upper half 11 in the vertical direction is smaller than the width of the lower half 12 in the vertical direction. Thus, when the junction box 2 is placed at the dividing line between the upper half 11 and the lower half 12, the junction box 2 can be positioned closer to the user.

[0059] It should also be noted that in this application, the first battery cell 111 and the second battery cell 121 are used with different slab technology. It is necessary to ensure that the voltage of the upper half 11 and the lower half 12 is the same. That is, the number of first battery cells 111 and the number of second battery cells 121 are the same and they are the same type of battery cell.

[0060] This application also proposes a photovoltaic system 200.

[0061] In this embodiment, the photovoltaic system 200 includes a junction box 2, a micro inverter 201, and a photovoltaic module 100 of any of the above embodiments. The junction box 2 is located at the dividing line between the upper part 11 and the lower part 12. The micro inverter 201 is electrically connected to the junction box 2 of the photovoltaic module 100 through a photovoltaic cable 202.

[0062] The photovoltaic system 200 is used to convert solar energy into electrical energy to generate electricity, replacing traditional fossil fuel power generation and reducing the consumption of non-renewable resources such as coal and natural gas. The photovoltaic system 200 includes a junction box 2, a micro inverter 201 and a photovoltaic module 100. The photovoltaic module 100 is used to absorb solar energy to generate direct current, thereby realizing the power generation function of the photovoltaic system 200.

[0063] Junction box 2 is used to realize electrical connection. That is, junction box 2 can provide external wiring terminals to output the electrical energy generated by the main body 1 of the component to meet the user's needs. By setting junction box 2 at the dividing line between the upper half 11 and the lower half 12, junction box 2 can be placed close to the first battery cell 111 and the second battery cell 121 at the same time. This makes it easy to connect junction box 2 to the first battery cell 111 and the second battery cell 121 to form a circuit with specific voltage and current output. The dividing line between the upper half 11 and the lower half 12 is located above the center line of the main body 1 in the vertical direction. This means that junction box 2 can be set above the center line of the main body 1 in the vertical direction, which means that junction box 2 can be set close to the upper end of the main body 1 and is close to the user. This makes it easy for the user to operate the wiring terminals brought out by junction box 2, thereby reducing the maintenance difficulty and improving the maintenance convenience.

[0064] The micro inverter 201 is used to convert direct current (DC) into alternating current (AC) to meet the user's needs. The micro inverter 201 is electrically connected to the junction box 2 of the photovoltaic module 100 via a photovoltaic cable 202. That is, the photovoltaic cable 202 can be used to connect the photovoltaic module 100 and the micro inverter 201, so that the photovoltaic cable 202 can transmit the DC power generated by the photovoltaic module 100 to the micro inverter 201, and then the micro inverter 201 can convert it into AC power for household use to meet the user's needs.

[0065] It should be noted that the photovoltaic system 200 of this application can be installed in locations such as balconies to meet the needs of ordinary users. When a user has multiple balconies, the photovoltaic system 200 can be installed on multiple balconies at the same time, and all photovoltaic systems 200 can be connected to the distribution cabinet to effectively improve the reliability and efficiency of the photovoltaic system 200 in generating electricity.

[0066] In some embodiments, there are multiple photovoltaic modules 100, and the junction boxes 2 of the multiple photovoltaic modules 100 are connected in series with the photovoltaic cable 202; wherein the junction boxes 2 of the multiple photovoltaic modules 100 are distributed facing each other in the horizontal direction.

[0067] It is understandable that the photovoltaic module 100 is used to convert solar energy into electrical energy. Multiple photovoltaic modules 100 can be configured, meaning there can be two, three, or more modules. This allows multiple photovoltaic modules 100 to work together to convert solar energy, improving the reliability and efficiency of the photovoltaic system 200. Furthermore, by connecting the junction boxes 2 of multiple photovoltaic modules 100 sequentially to the photovoltaic cable 202, multiple photovoltaic modules 100 can be connected in series via the photovoltaic cable 202. This facilitates connecting multiple photovoltaic modules 100 to the micro-inverter 201, allowing the DC power generated by each photovoltaic module 100 to be transmitted to the micro-inverter 201 via the photovoltaic cable 202, where it is converted into AC power to meet user needs. This also helps reduce the number of micro-inverters 201 required, lowering installation costs.

[0068] In this arrangement, the junction boxes 2 of multiple photovoltaic modules 100 are connected in series via photovoltaic cables 202, and the junction boxes 2 of multiple photovoltaic modules 100 are arranged facing each other in the horizontal direction. This allows the multiple photovoltaic modules 100 to be arranged in the horizontal direction in sequence, so that the junction boxes 2 of multiple photovoltaic modules 100 are all located on the same straight line, and the distance between the junction boxes 2 of two adjacent photovoltaic modules 100 is relatively close. This reduces the length of the photovoltaic cables 202 used to connect the junction boxes 2 of two adjacent photovoltaic modules 100, and further reduces the installation cost.

[0069] Furthermore, it should be noted that by setting multiple photovoltaic modules 100 in the photovoltaic system 200, the traditional large-sized photovoltaic modules 100 can be redesigned into smaller-sized photovoltaic modules 100 (e.g., the power of each photovoltaic module 100 can be less than 200W). Moreover, the photovoltaic modules 100 can be connected by splicing, thereby flexibly selecting the number of photovoltaic modules 100 to adapt to balconies of different sizes, which can increase the applicability of the photovoltaic system 200.

[0070] In some embodiments, the microinverter 201 is positioned above the height of the centerline of the module body 1 in the vertical direction; and / or, there are multiple photovoltaic modules 100, and each of the multiple photovoltaic modules 100 is electrically connected to the microinverter 201.

[0071] It should be noted that the junction box 2 of the photovoltaic module 100 is connected to the micro-inverter 201 via the photovoltaic cable 202. This allows the micro-inverter 201 to be positioned higher than the centerline of the photovoltaic module 100 in the vertical direction. This makes the micro-inverter 201 closer to the top of the photovoltaic module 100, and thus closer to the user. When the junction box 2 of the photovoltaic module 100 is connected to the micro-inverter 201, the junction box 2 and the micro-inverter 201 can be placed close to each other and simultaneously closer to the user, making it easier for the user to operate. This reduces maintenance difficulty and improves maintenance convenience.

[0072] Furthermore, there can be multiple photovoltaic modules 100, meaning that the number of photovoltaic modules 100 can be two, three, or more. This allows multiple photovoltaic modules 100 to be used simultaneously for solar energy conversion, improving the reliability and efficiency of the photovoltaic system 200. By electrically connecting multiple photovoltaic modules 100 to the micro-inverter 201, the junction boxes 2 of multiple photovoltaic modules 100 can all be connected to the micro-inverter 201 via photovoltaic cables 202. This allows the DC power generated by each photovoltaic module 100 to be transmitted to the micro-inverter 201 via the photovoltaic cables 202, where it is converted into AC power to meet the user's needs.

[0073] In some embodiments, the photovoltaic module 100 is suitable for longitudinal installation on a balcony; wherein the photovoltaic module 100 has a plurality of cell areas 3 distributed in the left-right direction, and each pair of adjacent cell areas 3 is independently configured with a miniature bypass diode 4.

[0074] It is understandable that by installing the photovoltaic module 100 longitudinally on the balcony, the photovoltaic module 100 can be positioned facing outwards from the balcony, which facilitates the first solar cell 111 and the second solar cell 121 on the photovoltaic module 100 to receive solar energy and convert it into electrical energy. Moreover, the photovoltaic module 100 has multiple solar cell areas 3 distributed in the left-right direction, that is, each of the multiple solar cell areas 3 has a portion located in the upper half 11 and a portion located in the lower half 12, thereby making each of the multiple solar cell areas 3 include a portion of the first solar cell 111 and a portion of the second solar cell 121.

[0075] Meanwhile, the miniature bypass diode 4 provides a bypass channel for the shaded solar cells, allowing other unshaded solar cells to operate normally. By independently configuring the miniature bypass diode 4 for every two adjacent solar cell areas 3, each pair of adjacent solar cell areas 3 can be grouped together. The solar cell areas 3 on the photovoltaic module 100 are divided into multiple groups from left to right, and each group of solar cell areas 3 is equipped with a separate miniature bypass diode 4. Thus, when some solar cell areas 3 are shaded, a bypass channel can be provided for them through the miniature bypass diode 4 connected to them, so as to ensure the overall output efficiency of the photovoltaic module 100 and help improve the power generation and economic benefits of the photovoltaic system 200.

[0076] In such Figures 1-3 In the embodiment shown, the photovoltaic module 100 has four cell areas 3 distributed in the left-right direction. Each pair of adjacent cell areas 3 forms a group, that is, the photovoltaic module 100 includes two groups of cell areas 3. Correspondingly, the photovoltaic module 100 is provided with two miniature bypass diodes 4. When one group of cell areas 3 is shaded, a bypass channel can be provided for it through the corresponding miniature bypass diodes 4, thereby improving the output efficiency of the photovoltaic module 100.

[0077] It should be noted that in actual design, the number of miniature bypass diodes 4 can be increased so that each miniature bypass diode 4 can control one cell area 3 independently, thus achieving fine control of the photovoltaic module 100. However, in this application, the method of controlling two cell areas 3 with one miniature bypass diode 4 can reduce the number of miniature bypass diodes 4 and lower the installation cost. Furthermore, by changing the wiring method within the photovoltaic module 100, two miniature bypass diodes 4 can control the upper half 11 and the lower half 12 respectively, providing a flexible and selectable installation method.

[0078] Furthermore, the miniature bypass diode 4 can be installed inside the junction box 2. However, the number of junction boxes 2 and the number of miniature bypass diodes 4 can be the same or different. Multiple miniature bypass diodes 4 can be installed in one junction box 2 at the same time, or multiple miniature bypass diodes 4 can be installed in multiple junction boxes 2 respectively. This allows the junction box 2 to reliably protect the miniature bypass diodes 4, and the number of junction boxes 2 can be flexibly set as needed.

[0079] Furthermore, multiple photovoltaic modules 100 can be symmetrically distributed relative to the micro-inverter 201, allowing the micro-inverter 201 to be positioned in the middle of the multiple photovoltaic modules 100. This enables the micro-inverter 201 to simultaneously approach multiple photovoltaic modules 100, resulting in a closer distance between the multiple photovoltaic modules 100 and the micro-inverter 201. Consequently, the length of the photovoltaic cable 202 used to connect the junction box 2 and the micro-inverter 201 can be shortened, reducing installation costs. When connecting the micro-inverter 201 to the junction box 2 of the photovoltaic modules 100, each MPPT (maximum power point tracking) of the micro-inverter 201 can be connected to multiple series-connected photovoltaic modules 100 to improve the efficiency of the photovoltaic system 200. The number of photovoltaic modules 100 connected must be adapted to the optimal operating voltage of the micro-inverter 201.

[0080] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0081] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0082] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0083] In the description of this application, "multiple" means two or more.

[0084] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0085] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic module, characterized in that, include: The component body includes an upper half and a lower half distributed in a vertical direction. The upper half is provided with at least one first battery cell, and the lower half is provided with at least one second battery cell. The first battery cell and the second battery cell are battery cells with different segments.

2. The photovoltaic module according to claim 1, characterized in that, The first battery cell is constructed to be smaller than the second battery cell; Specifically, the first battery cell can be constructed as a three-part battery cell and the second battery cell as a two-part battery cell, or the first battery cell can be constructed as a four-part battery cell and the second battery cell as a two-part battery cell, or the first battery cell can be constructed as a four-part battery cell and the second battery cell as a three-part battery cell. Alternatively, the first solar cell may be constructed to be larger than the second solar cell; Specifically, the first battery cell can be constructed as a two-part battery cell and the second battery cell as a three-part battery cell, or the first battery cell can be constructed as a three-part battery cell and the second battery cell as a four-part battery cell, or the first battery cell can be constructed as a two-part battery cell and the second battery cell as a four-part battery cell.

3. The photovoltaic module according to claim 1, characterized in that, The overall size of the first battery cell is smaller than the overall size of the second battery cell.

4. The photovoltaic module according to claim 3, characterized in that, There are multiple first battery cells and multiple second battery cells, and the number of first battery cells is the same as the number of second battery cells.

5. The photovoltaic module according to claim 4, characterized in that, The first battery cell is configured such that its width in the vertical direction is smaller than that of the second battery cell in the vertical direction; And / or, the first battery cell is configured such that its length in the horizontal direction is less than or equal to the length of the second battery cell in the horizontal direction.

6. The photovoltaic module according to claim 4, characterized in that, The arrangement of the plurality of first battery cells is the same as the arrangement of the plurality of second battery cells.

7. A photovoltaic system, characterized in that, The device includes a junction box, a microinverter, and at least one photovoltaic module according to any one of claims 1-6, wherein the junction box is located at the boundary between the upper and lower portions, and the microinverter is electrically connected to the junction box of the photovoltaic module via photovoltaic cables.

8. The photovoltaic system according to claim 7, characterized in that, The photovoltaic modules are multiple, and the junction boxes of the multiple photovoltaic modules are connected in series with the photovoltaic cables. The junction boxes of the photovoltaic modules are arranged facing each other in the horizontal direction.

9. The photovoltaic system according to claim 7, characterized in that, The micro inverter is positioned above the height of the main body of the component along the vertical centerline; And / or, there are multiple photovoltaic modules, and each of the multiple photovoltaic modules is electrically connected to the microinverter.

10. The photovoltaic system according to claim 7, characterized in that, The photovoltaic modules are suitable for longitudinal installation on balconies; The photovoltaic module has multiple cell areas distributed along the left-right direction, and each pair of adjacent cell areas is independently equipped with a miniature bypass diode.

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