Flow guide assembly and photovoltaic assembly

Abstract

The utility model provides a diversion assembly and a photovoltaic assembly, the diversion assembly comprises a body and a fixing adhesive film, the fixing adhesive film is fixedly connected with the body and at least partially covers the body, the fixing adhesive film is used for filling an included angle formed by the body and a battery piece, and the fixing adhesive film is bonded to the battery piece. According to the technical scheme, the body can cover the battery piece through the fixing adhesive film, in the laminating process, the fixing adhesive film can be used for filling an included angle or a gap formed by the edge of the body and the battery piece, and the situation that the packaging adhesive film or other materials enter the included angle or the gap to affect ohmic contact of the body and the battery piece is prevented. The fixing adhesive film covers the body during lamination, and the two ends of the fixing adhesive film are bonded with the battery pieces, so that the body and the battery pieces form good ohmic contact, the body and the battery pieces do not need to be fixedly connected in a welding mode, operation steps are simplified, and the situation that the battery pieces are damaged by welding is avoided.

Description

Technical Field

[0001] This application belongs to the technical field of photovoltaic cells, and particularly relates to a diversion component and a photovoltaic module. Background Art

[0002] Solar cells can convert light energy into electrical energy. When it is necessary to export the photocurrent generated by multiple cells, the photocurrent can be exported by welding a welding tape on the cells. When welding the welding tape, solder can be applied to the welding tape, and the welding tape is fixedly connected to the cell by means of high-temperature welding or laser welding. However, such steps are cumbersome and the cells are easily damaged during welding. Summary of the Utility Model

[0003] Embodiments of this application provide a diversion component and a photovoltaic module to solve or alleviate one or more technical problems in the prior art.

[0004] As an aspect of the embodiments of this application, embodiments of this application provide a diversion component, including:

[0005] A body for being attached to a cell;

[0006] A fixing adhesive film fixedly connected to the body and at least partially covering the body;

[0007] Wherein, the fixing adhesive film is used to fill the included angle formed by the body and the cell, and the fixing adhesive film is bonded to the cell.

[0008] Optionally, the material of the fixing adhesive film includes one of EVA, POE, POB, PVDF, and EPE; and / or

[0009] The thickness of the fixing adhesive film is 5μm to 150μm.

[0010] Optionally, there is one body, and the body is correspondingly arranged with a main grid on the cell;

[0011] The fixing adhesive film includes:

[0012] A fixing part fixedly connected to the body;

[0013] Two filling parts respectively connected to opposite ends of the fixing part;

[0014] Wherein, the filling part is used to fill the included angle formed by the body and the cell and bond to the cell.

[0015] Optionally, the thickness of the filling part is greater than the thickness of the fixing part.

[0016] Optionally, there are two fixing adhesive films;

[0017] The two fixing adhesive films are respectively located at two ends of the body and on different sides of the body;

[0018] Wherein, the length of one of the fixing adhesive films is greater than or equal to the projection length of the body projected on one of the battery cells.

[0019] Optionally, the fixing adhesive film includes a plurality of first fixing adhesive films and a plurality of second fixing adhesive films;

[0020] The plurality of first fixing adhesive films are fixedly arranged at intervals at one end of the body and on the first side of the body;

[0021] The plurality of second fixing adhesive films are fixedly arranged at intervals at the other end of the body and on the second side of the body.

[0022] Optionally, the diversion component satisfies one or more of the following properties:

[0023] (1) The distance between two adjacent first fixing adhesive films is 0.9 mm to 1.5 mm, and / or the distance between two adjacent second fixing adhesive films is 0.9 mm to 1.5 mm;

[0024] (2) The number of the plurality of first fixing adhesive films is 2 to 21, and / or the number of the plurality of second fixing adhesive films is 2 to 21;

[0025] (3) The length of the first fixing adhesive film along the length direction of the body is 5 mm to 105 mm, and / or the length of the second fixing adhesive film along the length direction of the body is 5 mm to 105 mm;

[0026] (4) The ratio of the width of the first fixing adhesive film to the width of the body is 1.5 to 5, and / or the ratio of the width of the second fixing adhesive film to the width of the body is 1.5 to 5;

[0027] (5) The projection shape of the first fixing adhesive film and / or the second fixing adhesive film in the thickness direction of the battery cell is an X shape.

[0028] Optionally, the body includes a plurality of first bodies arranged at intervals, and one of the first bodies is correspondingly arranged with one main grid on the battery cell.

[0029] Optionally, the body further includes a plurality of second bodies arranged at intervals, and the plurality of second bodies and the plurality of first bodies intersect with each other to form a grid-like arrangement, and one of the second bodies is correspondingly arranged with one fine grid on the battery cell.

[0030] As another aspect of the embodiments of the present application, the embodiments of the present application further provide a photovoltaic module, including:

[0031] At least two solar cells;

[0032] The current guiding component according to any one of the above, the current guiding component is used to connect the positive electrode of one solar cell and the negative electrode of one solar cell respectively.

[0033] In the embodiment of the present application, adopting the above technical solution, the body can be covered on the solar cell through the fixing glue film. The fixing glue film is propped up by the body, and an included angle or a gap is formed between the edge of the body and the solar cell. Then, after laminating the encapsulation glue film and the encapsulation glass in sequence and laminating at a predetermined temperature, the fixing glue film fills the included angle or the gap formed between the edge of the body and the solar cell, preventing the encapsulation glue film or other materials from entering the included angle or the gap to affect the ohmic contact between the body and the solar cell. The fixing glue film covers the body during lamination, and both ends are bonded to the solar cell, so that a good ohmic contact is formed between the body and the solar cell, thus eliminating the need to fixedly connect the body and the solar cell by welding, simplifying the operation steps and avoiding the situation of welding damage to the solar cell.

[0034] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0036] Figure 1 FIG. is a schematic structural diagram of a current guiding component according to an embodiment of the present application;

[0037] Figure 2 FIG. is a schematic installation structure diagram of the current guiding component and the solar cell according to an embodiment of the present application;

[0038] Figure 3 FIG. is another schematic installation structure diagram of the current guiding component and the solar cell;

[0039] Figure 4 FIG. is another schematic structural diagram of a current guiding component according to an embodiment of the present application;

[0040] Figure 5 FIG. is another schematic installation structure diagram of the current guiding component and the solar cell according to an embodiment of the present application;

[0041] Figure 6 FIG. is still another schematic structural diagram of a current guiding component according to an embodiment of the present application;

[0042] Figure 7 Another structural schematic diagram of the diversion component according to an embodiment of the present application;

[0043] Figure 8 Another structural schematic diagram of the diversion component according to an embodiment of the present application;

[0044] Figure 9 Another structural schematic diagram of the diversion component according to an embodiment of the present application;

[0045] Figure 10 Another installation structural schematic diagram of the diversion component and the battery cell according to an embodiment of the present application;

[0046] Figure 11 Another structural schematic diagram of the diversion component according to an embodiment of the present application.

[0047] Description of reference numerals:

[0048] Body 10; fixing adhesive film 20; battery cell 30; first body 10; second body 10; fixing portion 21; filling portion 22; first fixing adhesive film 201; second fixing adhesive film 202. Detailed description of the embodiments

[0049] The following details the embodiments of the present application, and the examples of the embodiments are shown in the drawings. In the drawings, for clarity, the dimensions of layers, regions, elements, and their relative dimensions may be exaggerated. Among them, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0050] It should be understood that when an element or layer is referred to as "on...", "adjacent to...", "connected to" or "coupled to" another element or layer, it can be directly on, adjacent to, connected or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, when an element is referred to as "directly on...", "directly adjacent to...", "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, without departing from the teachings of the present disclosure, the first element, component, region, layer, or part discussed below may be represented as the second element, component, region, layer, or part. And when discussing the second element, component, region, layer, or part, it does not indicate that the present disclosure necessarily has a first element, component, region, layer, or part.

[0051] In this application, unless otherwise clearly defined and limited, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0053] In this application, when it comes to numerical intervals (that is, numerical ranges), unless otherwise specified, the distribution of the selectable numerical values within this numerical interval is considered continuous, and includes the two numerical endpoints of this numerical interval (that is, the minimum value and the maximum value), as well as each numerical value between these two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to the integers within this numerical interval, it includes the two endpoint integers of this numerical range, as well as each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all sub-ranges subsumed therein. The "numerical value" in this numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. The "numerical interval" allows a broad inclusion of quantitative intervals such as percentage intervals, ratio intervals, and ratio value intervals.

[0054] The embodiments of this application provide a technical solution for a diversion component and a photovoltaic component. Based on this, the steps of fixing the diversion component and the battery chip are simplified, and the battery chip is not easily damaged. See the following for details.

[0055] Next, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein.

[0056] Please refer to Figures 1 to 4 , an embodiment of the present application provides a diversion assembly, which includes a body 10 and a fixing adhesive film 20. The following is a detailed description:

[0057] The body 10 is used to be attached to the battery cell 30. The body 10 is strip-shaped and can be a metal wire with good electrical conductivity for electrically connecting with the battery cell 30 and collecting and leading out the photocurrent generated by the battery cell 30.

[0058] The material of the body 10 may include one or more of silver, copper, nickel, and lead. Silver and copper have relatively good electrical conductivity, and increasing the component ratio of silver and copper in the body 10 can correspondingly improve the electrical conductivity of the body 10. Nickel and lead can be used to adjust the melting point and adhesion of the body 10 so that the body 10 has good contact with the battery cell. The component ratio of the above materials in the body 10 can be reasonably adjusted according to process requirements.

[0059] Specifically, in one embodiment, the structure of the body 10 can be a structure with silver wrapping copper, and the overall cost is relatively appropriate while having good electrical conductivity.

[0060] The fixing adhesive film 20 is fixedly connected to the body 10 and at least partially covers the body 10. Under predetermined conditions, the fixing adhesive film 20 is used to fill the included angle formed by the body 10 and the battery cell 30, and the fixing adhesive film 20 is bonded to the battery cell 30. As Figure 3 and Figure 4 shown, the cross-section of the body 10 can be circular, that is, the included angle formed by the body 10 and the battery cell 30 can be an included angle with one side being an arc surface. In other embodiments, the cross-section of the body 10 can also be other shapes, such as rectangular, triangular, etc.

[0061] The predetermined conditions may include lamination or laser irradiation to bond the fixing adhesive film 20 to the battery cell 30.

[0062] Taking lamination as an example, when the fixing adhesive film 20 covers the body 10 on the battery cell 30, the fixing adhesive film 20 is propped up by the body 10, and an angle or gap is formed between the edge of the body 10 and the battery cell 30. After sequentially laminating the encapsulation adhesive film and the encapsulation glass, lamination is carried out at a temperature of 40°C to 250°C, so that the fixing adhesive film 20 fills the angle or gap formed between the edge of the body 10 and the battery cell 30, preventing the encapsulation adhesive film or other materials from entering the angle or gap and affecting the ohmic contact between the body 10 and the battery cell 30. The fixing adhesive film 20 covers the body 10 during lamination, and both ends are bonded to the battery cell 30, so that a good ohmic contact is formed between the body 10 and the battery cell 30, thus eliminating the need to fixedly connect the body 10 and the battery cell 30 by welding, simplifying the operation steps, and avoiding the situation of damaging the battery cell during welding.

[0063] In one embodiment, the material of the fixing adhesive film 20 may include one of EVA (ethylene-vinyl acetate copolymer), POE (polyolefin elastomer), POB (polyolefin block copolymer), PVDF (polyvinylidene fluoride), and EPE (foamed polyethylene).

[0064] Such materials have relatively good bonding properties and elasticity, can be stably bonded to the battery cell during lamination, are not easily broken during lamination and stretching, and can better fill the angle or gap formed between the edge of the body 10 and the battery cell, preventing the encapsulation adhesive film or other materials from entering.

[0065] In one embodiment, the thermal shrinkage rate of the fixing adhesive film 20 may be less than 2%, such as 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%. This makes the fixing adhesive film 20 not easily deformed or shrunk due to temperature during lamination, so that the shape and size of the fixing adhesive film 20 can be ensured to be stable, and the situation of poor filling effect caused by the shrinkage of the fixing adhesive film 20 can be avoided.

[0066] In one embodiment, the tensile strength of the fixing adhesive film 20 may be greater than or equal to 15 MPa, and the bonding strength of the fixing adhesive film 20 may be greater than 40 N / cm, so that the fixing adhesive film 20 can firmly adhere to the battery cell and the body 10, ensuring the overall long-term reliability of the current-carrying component, and the appropriate tensile strength can make the fixing adhesive film 20 not easily broken during lamination and reduce the situation of peeling of the fixing adhesive film 20 caused by external force.

[0067] In one embodiment, the thickness of the fixing adhesive film 20 can be 5 μm to 150 μm. The fixing adhesive film 20 is relatively thin (such as 10 μm). On the one hand, it can control the thermal resistance of the fixing adhesive film 20, enabling it to quickly conduct and dissipate heat, avoiding heat accumulation. On the other hand, it correspondingly reduces the use of materials, saving costs and reducing the overall weight of the component. If the fixing adhesive film 20 is relatively thick (such as 120 μm), it can more effectively fill the larger included angle or gap between the body 10 and the battery cell, ensuring a good sealing effect and ensuring that the fixing adhesive film 20 has sufficient bonding effect.

[0068] In one embodiment, the number of the bodies 10 is one, and the body 10 is correspondingly arranged with a main grid on the battery cell 30. The fixing adhesive film 20 includes a fixing portion 21 and two filling portions 22. The fixing portion 21 is fixedly connected to the body 10, and the two filling portions 22 are respectively connected to opposite ends of the fixing portion 21. The filling portion 22 is used to fill the included angle formed between the body 10 and the battery cell 30 and bond with the battery cell.

[0069] Please refer to Figure 5 , one fixing adhesive film 20 corresponds to one body 10. Multiple diversion components can be sequentially arranged corresponding to multiple main grids on the battery cell 30. That is, when there are multiple main grids on the battery cell 30 and multiple diversion components are correspondingly arranged, there is a certain interval between the fixing adhesive films 20 of the multiple diversion components. It is possible to reduce the overall usage amount of the fixing adhesive film 20 while ensuring that the fixing adhesive film 20 fills the included angle or gap formed between the edge of the body 10 and the battery cell 30.

[0070] Preferably, as Figure 4 shown, the thickness of the filling portion 22 is greater than the thickness of the fixing portion 21. Thickening the thickness of the filling portion 22 can enable the filling portion 22 to have sufficient volume to fill the included angle between the edge of the body 10 and the battery cell. On the one hand, the filling portion 22 can form a larger contact surface at the included angle, which can more effectively disperse and absorb external mechanical stress, improving the overall bonding effect of the fixing adhesive film 20. On the other hand, the relatively thick filling portion 22 can also prevent subsequent encapsulation adhesive film or other substances from passing through, thereby affecting the conductivity between the body 10 and the battery cell.

[0071] In one embodiment, please refer to Figure 6 , the fixing adhesive film 20 can be two. The two fixing adhesive films 20 are respectively located at both ends of the body 10 and on different sides of the body 10. The length of one fixing adhesive film 20 is greater than or equal to the projection length of the body 10 on one battery cell.

[0072] Exemplarily, the current guiding component can be electrically connected to the positive electrode of the first battery cell and the negative electrode of the second battery cell respectively to collect the current of the two battery cells. Specifically, one end of the body 10 is correspondingly arranged with the positive electrode of the first battery cell, and part of the body 10 is bonded to the first battery cell through a fixing adhesive film corresponding to the first battery cell. The other end of the body 10 is correspondingly arranged with the negative electrode of the second battery cell, and part of the body 10 is bonded to the second battery cell through a fixing adhesive film corresponding to the second battery cell. Since the part of the body 10 corresponding to the gap between the first battery cell and the second battery cell is not in direct contact with the battery cell, a fixing adhesive film may not be provided. That is, in this embodiment, two fixing adhesive films are segmented on one body 10 to fixedly bond different ends of one body 10 to different battery cells, rather than respectively arranging current guiding components on different electrodes of the first battery cell and the second battery cell and then electrically connecting the two current guiding components in series. This embodiment can correspondingly reduce the process steps of electrically connecting the current guiding components on multiple battery cells in series.

[0073] Further, in this embodiment, please refer to Figure 7 , the fixing adhesive film includes a plurality of first fixing adhesive films 201 and a plurality of second fixing adhesive films 202. The plurality of first fixing adhesive films 201 are fixedly spaced at one end of the body 10 and are located on the first side of the body 10. The plurality of second fixing adhesive films 202 are fixedly spaced at the other end of the body 10 and are located on the second side of the body 10.

[0074] Exemplarily, the plurality of first fixing adhesive films 201 can correspond to the positive electrode of the first battery cell, and the plurality of second fixing adhesive films 202 can correspond to the negative electrode of the second battery cell. The plurality of spaced first fixing adhesive films 201 on the body 10 can ensure that the first fixing adhesive films 201 have sufficient bonding force and can stably bond the body 10 to the battery cell, while also reducing the coverage rate of all the first fixing adhesive films 201 on the body 10, that is, reducing the total amount of all the first fixing adhesive films 201 used, and correspondingly saving the usage cost of the first fixing adhesive films 201. The functions and effects of the second fixing adhesive films 202 are similar to those of the first fixing adhesive films 201 and will not be elaborated here.

[0075] Specifically, the current guiding component can satisfy one or more of the following properties:

[0076] (1) The distance between two adjacent first fixing adhesive films 201 is 0.9 mm to 1.5 mm, and / or the distance between two adjacent second fixing adhesive films 202 is 0.9 mm to 1.5 mm.

[0077] A reasonable distance can maximize the utilization rate of the fixing adhesive film. While ensuring the bonding effect, it can ensure a sufficient bonding area and reduce the amount of the fixing adhesive film used to save costs.

[0078] (2) The number of multiple first fixing adhesive films 201 is 2 to 21, and / or the number of multiple second fixing adhesive films 202 is 2 to 21.

[0079] The number of the above-mentioned first fixing adhesive film 201 / second fixing adhesive film 202 can adapt to battery wafers of different specifications and sizes, ensuring that the diversion component can be widely used for various battery wafers.

[0080] (3) The length of the first fixing adhesive film 201 along the length direction of the body 10 is 5 mm to 105 mm, and / or the length of the second fixing adhesive film 202 along the length direction of the body 10 is 5 mm to 105 mm.

[0081] The length range of the above-mentioned first fixing adhesive film 201 / second fixing adhesive film 202 can adapt to battery wafers of different specifications and sizes, ensuring that the diversion component can be widely used for various battery wafers.

[0082] (4) The ratio of the width of the first fixing adhesive film 201 to the width of the body 10 is 1.5 to 5, and / or the ratio of the width of the second fixing adhesive film 202 to the width of the body 10 is 1.5 to 5.

[0083] Defining the width ratio of the first fixing adhesive film 201 / second fixing adhesive film 202 to the body 10 can ensure that the first fixing adhesive film 201 / second fixing adhesive film 202 has enough width to cover the body 10 on the battery wafer. It can be understood that if the width ratio of the first fixing adhesive film 201 / second fixing adhesive film 202 to the body 10 is too small (such as the ratio is 1), it may lead to insufficient extension of the first fixing adhesive film 201 / second fixing adhesive film 202 during lamination, resulting in the situation that the body 10 cannot be covered on the battery wafer.

[0084] Preferably, the ratio of the width of the first fixing adhesive film 201 to the width of the body 10 is 1.6, 1.8, 2, 2.2, 2.5, 2.8, 3, 3.5, 4, 4.5.

[0085] (5) The projection shape of the first fixing adhesive film 201 and / or the second fixing adhesive film 202 in the thickness direction of the battery wafer is an X shape.

[0086] Please refer to Figure 8 , the X-shaped structure can increase the contact area between the fixing adhesive film and the battery wafer, improve the bonding strength and stability, and ensure that the diversion component is firmly attached to the battery wafer.

[0087] It should be noted that in other embodiments, the above numerical ranges and quantity limitations can also be other ranges or quantities, and can be specifically adjusted adaptively according to the model of the battery wafer, the requirements of the component packaging process, etc.

[0088] Please refer to Figure 9 and Figure 10, in an alternative embodiment, the body may include a plurality of first bodies 11 spaced apart from each other, and one first body 11 is correspondingly arranged with one main grid on the battery cell 30. That is, one fixing film is fixedly bonded to a plurality of first bodies 11.

[0089] With such an arrangement, when manufacturing a photovoltaic module, since the plurality of first bodies 11 in the current guiding assembly are correspondingly arranged with the plurality of main grids of the battery cell 30, only a relatively small number of current guiding assemblies or one current guiding assembly need to be laid on the battery cell 30. Compared with laying one current guiding assembly corresponding to each main grid on the battery cell 30 separately, this embodiment can correspondingly simplify the manufacturing process and process complexity of manufacturing the photovoltaic module.

[0090] Exemplarily, two current guiding assemblies can be respectively covered on different electrodes of different battery cells to be connected to different electrodes, and then the two current guiding assemblies are electrically connected in series before lamination, or the two current guiding assemblies are electrically connected in series in advance, and then the two electrically connected current guiding assemblies are respectively bonded to different electrodes of different battery cells.

[0091] Further, please refer to Figure 11 , in this embodiment, the body may further include a plurality of second bodies 12 spaced apart from each other. The plurality of second bodies 12 and the plurality of first bodies 11 intersect with each other to form a grid-like arrangement, and one second body 12 is correspondingly arranged with one fine grid on the battery cell. The plurality of second bodies 12 can further collect the photocurrent on the battery cell through the fine grids on the battery cell.

[0092] An embodiment of the present application further provides a photovoltaic module, including at least two battery cells and the current guiding assembly in any of the above embodiments. The current guiding assembly is used to connect the positive electrode of one battery cell and the negative electrode of one battery cell respectively.

[0093] The current guiding assembly may be that two fixing films are respectively arranged at both ends of one body; or one fixing film is arranged on one body, and two bodies are electrically connected in series with each other.

[0094] In some embodiments, there is a paste on the battery cell that is electrically connected to the PN junction inside the battery cell. The paste may include materials such as silver and tin. When manufacturing the photovoltaic module, the body in the current guiding assembly can be laid corresponding to the paste on the battery cell, and then the body is fixed on the battery cell through the fixing film to collect the photocurrent generated by the battery cell through the body. Such an arrangement can eliminate the need to provide main grids on the battery cell and directly lay the current guiding assembly, reducing the process complexity. At the same time, since the body is in direct electrical contact with the paste, the usage amount of the paste can be correspondingly reduced, thereby saving the manufacturing cost of the photovoltaic module.

[0095] The photovoltaic module may further include an encapsulation adhesive film covering the diversion component. The material of the encapsulation adhesive film is different from that of the fixing adhesive film of the diversion component, so as to prevent the encapsulation adhesive film from flowing through the fixing adhesive film and contacting the body during the lamination process, thereby affecting the conductivity between the body and the solar cell.

[0096] An embodiment of the present application further provides a photovoltaic system, including the photovoltaic module in any of the above embodiments. The application fields of the photovoltaic system are extensive, not limited to photovoltaic power stations, such as ground power stations, rooftop power stations, and water surface power stations, but also include various devices and apparatuses that utilize solar energy for power generation, such as user solar power supplies, solar street lamps, solar cars, and solar buildings. Of course, it can be understood that the application scenarios of the photovoltaic system are not limited thereto, that is to say, the photovoltaic system can be applied in all fields that require solar power generation. Taking a photovoltaic power generation system network as an example, the photovoltaic system may include a photovoltaic array, a busbar box, and an inverter. The photovoltaic array may be an array combination of multiple photovoltaic modules. For example, multiple photovoltaic modules may form multiple photovoltaic arrays. The photovoltaic array is connected to the busbar box, and the busbar box can aggregate the current generated by the photovoltaic array. The aggregated current flows through the inverter and is converted into alternating current required by the commercial power grid and then connected to the commercial power grid to achieve solar power supply.

[0097] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. The orientation terms "inner" and "outer" refer to the inside and outside relative to the contour of each component itself. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "on top of other devices or structures" will be positioned as "below other devices or structures" or "beneath other devices or structures" afterwards. Thus, the exemplary term "above..." may include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the relative spatial descriptions used herein.

[0098] It should also be noted that the "one embodiment", "another embodiment", "embodiment", etc. mentioned in this application refer to the specific features, structures or characteristics described in connection with this embodiment being included in at least one embodiment described in the general description of this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of this application.

[0099] In the above embodiments, the descriptions of each embodiment have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0100] It should also be noted that the above are only the preferred embodiments of this application, and do not limit the patent protection scope of this application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall similarly be included in the patent protection scope of this application.

Claims

1. A diversion component, characterized in that, Comprising: A body for being attached to a solar cell; A fixing adhesive film fixedly connected to the body and at least partially covering the body; Wherein, the fixing adhesive film is used to fill the included angle formed between the body and the solar cell, and the fixing adhesive film is bonded to the solar cell.

2. The diversion component according to claim 1, characterized in that The material of the fixing adhesive film includes one of EVA, POE, POB, PVDF, and EPE; and / or The thickness of the fixing adhesive film is 5μm - 150μm.

3. The diversion component according to any one of claims 1 to 2, characterized in that The body is one piece, and the body is correspondingly arranged with a main grid on the solar cell; The fixing adhesive film includes: A fixing part fixedly connected to the body; Two filling parts respectively connected to opposite ends of the fixing part; Wherein, the filling part is used to fill the included angle formed between the body and the solar cell and bond to the solar cell.

4. The diversion component according to claim 3, characterized in that, The thickness of the filling part is greater than the thickness of the fixing part.

5. The diversion component according to claim 3, characterized in that, There are two fixing adhesive films; The two fixing adhesive films are respectively located at both ends of the body and on different sides of the body; Wherein, the length of one fixing adhesive film is greater than or equal to the projection length of the body projected on one solar cell.

6. The diversion component according to claim 5, wherein The fixing adhesive film includes multiple first fixing adhesive films and multiple second fixing adhesive films; Multiple first fixing adhesive films are fixedly spaced at one end of the body and on the first side of the body; Multiple second fixing adhesive films are fixedly spaced at the other end of the body and on the second side of the body.

7. The diversion assembly according to claim 6, characterized in that, The current guiding component satisfies one or more of the following properties: (1) The distance between two adjacent first fixing adhesive films is 0.9mm - 1.5mm, and / or the distance between two adjacent second fixing adhesive films is 0.9mm - 1.5mm; (2) The number of multiple first fixing adhesive films is 2 - 21, and / or the number of multiple second fixing adhesive films is 2 - 21; (3) The length of the first fixing adhesive film along the length direction of the body is 5mm - 105mm, and / or the length of the second fixing adhesive film along the length direction of the body is 5mm - 105mm; (4) The ratio of the width of the first fixing adhesive film to the width of the body is 1.5 - 5, and / or the ratio of the width of the second fixing adhesive film to the width of the body is 1.5 - 5; (5) The projected shape of the first fixing adhesive film and / or the second fixing adhesive film in the thickness direction of the solar cell is an X shape.

8. The diversion component according to any one of claims 1 to 2, characterized in that, The body includes multiple first bodies distributed at intervals, and one first body is correspondingly arranged with a main grid on the solar cell.

9. The diversion component according to claim 8, wherein The body further includes multiple second bodies distributed at intervals, and the multiple second bodies and the multiple first bodies intersect to form a grid-like arrangement, and one second body is correspondingly arranged with a fine grid on the solar cell.

10. A photovoltaic module, characterized in that, Comprising: At least two solar cells; The current guiding component according to any one of claims 1 - 9, which is used to connect the positive electrode of one solar cell and the negative electrode of one solar cell respectively.

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