Photovoltaic module
By directly pasting the photovoltaic modules on the photovoltaic cell directly onto external objects, the cumbersome problem of photovoltaic module installation is solved, and the effect of simplifying installation steps and reducing costs is achieved.
Patent Information
- Application Number
- CN202422422290.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The installation process of existing photovoltaic modules is cumbersome and requires professionals to perform complex photovoltaic bracket installation, which increases material and labor costs.
The photovoltaic cells are directly pasted on external objects, such as walls, roofs, roofs or windows, etc., eliminating the installation steps of photovoltaic fixtures and fixing plates.
Simplifies the installation process, reduces material and labor costs, improves installation efficiency and scope of application, and can quickly get started without professional training.
Smart Images
Figure CN223194629U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of photovoltaic power generation, and more particularly, to a photovoltaic module. Background Art
[0002] As the core component of a photovoltaic power generation system, the technical development of photovoltaic modules has an important impact on the efficiency and cost of photovoltaic power generation. Currently, the technical level of photovoltaic modules has reached the international advanced level, covering multiple links such as direct-pull single crystal / multi-crystalline ingot casting, silicon wafer slicing, solar cell production, and module production. In terms of conversion efficiency, due to the optimization of module technology in three aspects: optics, electricity, and structure, the conversion efficiency of photovoltaic modules has been continuously improved.
[0003] However, in the prior art, the installation of photovoltaic modules still faces certain problems. Especially in the installation process of photovoltaic brackets, specialized photovoltaic brackets are usually used to fix photovoltaic modules on the roof or ground. In this process, it often requires personnel with professional learning and training to carry out construction and assembly, and the operation difficulty is relatively large. Utility Model Content
[0004] The purpose of this application is to provide a photovoltaic module that can solve the problem of cumbersome installation steps of photovoltaic modules in the prior art.
[0005] To achieve the above purpose, an embodiment of this application provides a photovoltaic module, including a photovoltaic cell and an adhesive. The photovoltaic cell includes a power generation end face and a fixed end face, and the power generation end face is used for photovoltaic power generation; the adhesive is disposed on the fixed end face, and the adhesive can adhere the photovoltaic cell to an external object.
[0006] In one embodiment, the thickness of the adhesive is A, where 100 μm ≤ A ≤ 1500 μm.
[0007] In one embodiment, the photovoltaic module further includes a front encapsulation layer, and the front encapsulation layer is disposed on the power generation end face to isolate the power generation end face of the photovoltaic cell from the external environment.
[0008] In one embodiment, the thickness of the front encapsulation layer is B, where 400 μm ≤ B ≤ 2700 μm.
[0009] In one embodiment, the photovoltaic module further includes a back encapsulation layer, and the back encapsulation layer is disposed on the fixed end face and between the adhesive and the photovoltaic cell to isolate the fixed end face of the photovoltaic cell from the external environment.
[0010] In one embodiment, the thickness of the back encapsulation layer is C, where 400 μm ≤ C ≤ 2700 μm.
[0011] In one embodiment, the photovoltaic module further includes a release layer disposed on a side of the adhesive member away from the photovoltaic cell, and the release layer is adhesively connected to the adhesive member to isolate the adhesive member from the external environment.
[0012] In one embodiment, the thickness of the release layer is D, where 50 μm ≤ D ≤ 600 μm.
[0013] In one embodiment, the photovoltaic cell includes N sub-generating cells connected in series, where N is a positive integer greater than or equal to 1.
[0014] In one embodiment, the number of the adhesive members is at least one.
[0015] In the above technical solution, compared with the prior art, it is necessary to first install a photovoltaic fixing frame and then install the photovoltaic cell on the photovoltaic fixing plate, which is a cumbersome process. The photovoltaic module of the present application directly adheres the photovoltaic cell to an external object (such as a wall, a roof, a car roof, a ground or a window, etc.) through an adhesive member, without first installing a photovoltaic fixing frame and a photovoltaic fixing plate, thus greatly simplifying the installation steps. Since the installation of the photovoltaic fixing frame and the fixing plate is omitted, the material and labor costs are reduced, so the overall installation cost is significantly reduced.
[0016] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 It is a schematic structural view of one perspective of an embodiment of a photovoltaic module provided for an embodiment of the present application;
[0019] Figure 2 It is a schematic structural view of a second perspective of another embodiment of a photovoltaic module provided for an embodiment of the present application;
[0020] Figure 3 It is a schematic structural view of a third perspective of another embodiment of a photovoltaic module provided for an embodiment of the present application;
[0021] Figure 4 It is a schematic structural view of a fourth perspective of another embodiment of a photovoltaic module provided for an embodiment of the present application.
[0022] Icon:
[0023] 100 - Photovoltaic cell; 200 - Adhesive; 300 - Front encapsulation layer; 400 - Back encapsulation layer; 500 - Release layer. Detailed implementation manners
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application described and illustrated herein can generally be arranged and designed in a variety of different configurations.
[0025] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0026] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
[0027] An embodiment of this application provides a photovoltaic module, as Figure 1 shown, this photovoltaic module includes a photovoltaic cell 100 and an adhesive 200.
[0028] The photovoltaic cell 100 includes a power generation end face and a fixed end face. The power generation end face is used for photovoltaic power generation. Exemplarily, the power generation end face faces the sun irradiation direction, and the fixed end face can provide an installation position for the adhesive 200. Exemplarily, the photovoltaic cell 100 includes, but is not limited to: crystalline silicon cells, thin film cells, perovskite cells, heterojunction cells, etc.
[0029] The adhesive 200 is provided on the fixed end face, and the adhesive 200 can stick the photovoltaic cell 100 to an external object.
[0030] Exemplarily, the material of the adhesive member 200 includes, but is not limited to: acrylic or polyacrylate viscoelastic bodies. Exemplarily, the adhesive member 200 can be laid on the fixed end surface by means such as coating or printing.
[0031] Exemplarily, the photovoltaic cell 100 is installed on the wall through the adhesive member 200. The adhesive member 200 is adhered to the wall, so that the photovoltaic cell 100 is adhesively installed on the wall. In some other embodiments, the photovoltaic cell 100 is installed on the roof through the adhesive member 200. The adhesive member 200 is adhered to the roof, so that the photovoltaic cell 100 is adhered to the roof. Of course, the photovoltaic cell 100 can also be adhered to other positions through the adhesive member 200, such as the car roof, the ground or the window, etc.
[0032] Compared with the prior art, in which it is necessary to first install a photovoltaic fixing frame and then install the photovoltaic cell 100 on the photovoltaic fixing plate in a cumbersome process. The photovoltaic module of the present application directly adheres the photovoltaic cell 100 to an external object (such as a wall, a roof, a car roof, the ground or a window, etc.) through the adhesive member 200, without first installing a photovoltaic fixing frame and a photovoltaic fixing plate, thus greatly simplifying the installation steps.
[0033] Since the installation of the photovoltaic fixing frame and the fixing plate is omitted, the material and labor costs are reduced, so the overall installation cost is significantly reduced.
[0034] The use of the adhesive member 200 makes the installation process faster. Installers can quickly get started without complex training and learning, thus improving the installation efficiency.
[0035] The application of the adhesive member 200 enables the photovoltaic cell 100 to be flexibly adhered to various different positions, meeting the installation requirements in different scenarios and improving the applicable range of the photovoltaic module.
[0036] As Figure 1 shown, in one embodiment, the thickness of the adhesive member 200 is A, where 100 μm ≤ A ≤ 1500 μm. The thickness A of the adhesive member 200 is set within the range of 100 μm - 1,500 μm, which can improve the high-temperature resistance of the adhesive member 200. If the thickness A is greater than 1500 μm, the adhesive member 200 is likely to melt and flow in a high-temperature environment, causing the photovoltaic cell 100 to displace or slip off. If the thickness A is less than 100 μm, the adhesive force is insufficient, resulting in unstable installation of the photovoltaic cell 100. Therefore, in the present application, setting the thickness of the adhesive member within the range of 100 μm - 1,500 μm can balance the high-temperature resistance performance and the adhesive force.
[0037] In one embodiment, the thickness A of the adhesive member 200 is 100 μm. In another embodiment, the thickness A of the adhesive member 200 is 200 μm. In another embodiment, the thickness A of the adhesive member 200 is 500 μm. In another embodiment, the thickness A of the adhesive member 200 is 800 μm. In another embodiment, the thickness A of the adhesive member 200 is 1000 μm. In another embodiment, the thickness A of the adhesive member 200 is 1200 μm. In another embodiment, the thickness A of the adhesive member 200 is 1400 μm. In another embodiment, the thickness A of the adhesive member 200 is 1500 μm.
[0038] As Figure 2 shown, in one embodiment, the photovoltaic module further includes a front encapsulation layer 300, and the front encapsulation layer 300 is disposed on the power generation end face to isolate the power generation end face of the photovoltaic cell 100 from the external environment.
[0039] Exemplarily, the material of the front encapsulation layer 300 includes but is not limited to: glass, resin (such as ethylene-vinyl acetate copolymer, polyvinyl butyral or polyolefin thermoplastic elastomer, etc.), plastic, glass fiber, polyethylene terephthalate, etc.
[0040] Exemplarily, the front encapsulation layer 300 is integrally formed by laminating with the photovoltaic cell 100. In some other embodiments, the front encapsulation layer 300 is adhesively fixed to the photovoltaic cell 100. In some other embodiments, the front encapsulation layer 300 is connected to the photovoltaic cell 100 by snap connection or bolt fixation.
[0041] The setting of the front encapsulation layer 300 can effectively isolate the power generation end face of the photovoltaic cell 100 from the external environment, thereby preventing the erosion of harmful factors such as dust, moisture, and ultraviolet rays on the photovoltaic cell 100. This can not only extend the service life of the photovoltaic cell 100 but also maintain its good power generation efficiency.
[0042] The materials commonly used for the front encapsulation layer 300 (such as glass, resin, plastic, etc.) have good weather resistance and corrosion resistance, and can maintain stable performance in harsh outdoor environments. Therefore, this setting can improve the overall durability of the photovoltaic module, enabling it to operate stably for a long time under various climatic conditions.
[0043] The front encapsulation layer 300 can not only protect the photovoltaic cell 100 but also enhance the safety of the photovoltaic module to a certain extent. For example, hard materials such as glass can serve as the support structure of the photovoltaic module to prevent it from deforming or cracking under external forces. At the same time, the encapsulation layer can also prevent safety hazards such as fires caused by internal short circuits of the photovoltaic cell 100.
[0044] As Figure 2As shown, in one embodiment, the thickness of the front encapsulation layer 300 is B, where 400μm ≤ B ≤ 2700μm.
[0045] In one embodiment, the thickness B of the front encapsulation layer 300 is 400μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 500μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 800μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 1000μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 1400μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 2000μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 2400μm. In one embodiment, the thickness B of the front encapsulation layer 300 is 2700μm.
[0046] The thickness B of the front encapsulation layer 300 is set within the range of 400μm to 2700μm, which can effectively provide necessary protection for the photovoltaic cell 100 and prevent the erosion of the photovoltaic cell 100 by the external environment (such as dust, moisture, ultraviolet light, etc.), thereby improving the durability and service life of the photovoltaic cell 100. This setting will neither result in insufficient protection due to too thin a thickness nor increase unnecessary weight and cost due to too thick a thickness.
[0047] If the thickness B of the front encapsulation layer 300 is greater than 2700μm, it will cause the weight of the photovoltaic module to be too large and the manufacturing cost to increase. And this setting can, by limiting the upper limit of the thickness, reduce the production cost and the weight of the photovoltaic module while ensuring the protection performance, making it lighter and more convenient for transportation and installation.
[0048] The thickness of the front encapsulation layer 300 is appropriate and will not be too thick to affect the efficiency of the photovoltaic cell 100 in receiving sunlight. Therefore, this setting helps to improve the power generation efficiency of the photovoltaic module and enables it to convert sunlight into electrical energy more effectively.
[0049] The thickness B of the front encapsulation layer 300 is set within the range of 400μm to 2700μm, which can adapt to the usage environments of most regions. Whether in regions with hot climate and strong ultraviolet light or in regions with cold climate and windy and snowy weather, this setting can provide sufficient protection for the photovoltaic cell 100.
[0050] As Figure 3 As shown, in one embodiment, the photovoltaic module further includes a back encapsulation layer 400, and the back encapsulation layer 400 is disposed on the fixed end face and between the adhesive member 200 and the photovoltaic cell 100 to isolate the fixed end face of the photovoltaic cell 100 from the external environment.
[0051] Exemplarily, the materials of the back encapsulation layer 400 include but are not limited to: glass, resin (such as ethylene-vinyl acetate copolymer, polyvinyl butyral or polyolefin thermoplastic elastomer, etc.), plastic, glass fiber or polyethylene terephthalate, etc.
[0052] Exemplarily, the bonding member 200 can be laid on the fixed end face by means such as coating or printing.
[0053] Exemplarily, the front encapsulation layer 300, the back encapsulation layer 400 and the photovoltaic cell 100 are integrally formed by lamination. In some other embodiments, the front encapsulation layer 300, the back encapsulation layer 400 and the photovoltaic cell 100 are adhesively fixed. In some other embodiments, the front encapsulation layer 300, the back encapsulation layer 400 and the photovoltaic cell 100 are snap-connected or bolt-fixed.
[0054] However, in another embodiment, the front encapsulation layer 300 set in the above embodiment is cancelled, and the photovoltaic module includes a back encapsulation layer 400, a photovoltaic cell 100 and a bonding member 200.
[0055] As Figure 1 shown, in one embodiment, the thickness of the back encapsulation layer 400 is C, where 400μm ≤ C ≤ 2700μm.
[0056] If the thickness C of the back encapsulation layer 400 is greater than 2700μm, it is likely to cause the weight of the photovoltaic module to be too large and the manufacturing cost to increase. If the thickness C of the back encapsulation layer 400 is less than 400μm, the protection ability and durability are reduced, resulting in poor product quality. The thickness C of the back encapsulation layer 400 is set within the range of 400μm to 2700μm, enabling the photovoltaic cell 100 to adapt to the usage environments of most regions, ensuring both the protection performance and durability, and also ensuring relatively low production costs and lightness.
[0057] In one embodiment, the thickness C of the back encapsulation layer 400 = 400μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 500μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 800μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 1000μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 1400μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 2000μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 2400μm. In one embodiment, the thickness C of the back encapsulation layer 400 = 2700μm.
[0058] As Figure 4As shown, in one embodiment, the photovoltaic module further includes a release layer 500, which is disposed on a side of the adhesive 200 away from the photovoltaic cell 100. The release layer 500 is adhesively connected to the adhesive 200 to isolate the adhesive 200 from the external environment.
[0059] Exemplarily, the material of the release layer 500 includes but is not limited to: silicon oil paper, anti-sticking paper, polyethylene terephthalate, polyethylene, etc.
[0060] The provision of the release layer 500 can prevent foreign substances from sticking to the adhesive 200, keeping the adhesive 200 clean and adhesive. When in use, the release layer 500 can be peeled off from the adhesive 200.
[0061] The release layer 500 is disposed on a side of the adhesive 200 away from the photovoltaic cell 100 and is adhesively connected thereto, effectively isolating the adhesive 200 from the external environment. This can prevent foreign substances (such as dust, moisture, chemicals, etc.) from sticking to the adhesive 200, thereby protecting the integrity and performance of the adhesive 200. Due to the isolation of the release layer 500, the adhesive 200 can remain clean for a long time without being affected by external pollution. This ensures that the adhesive 200 can maintain its original adhesiveness during use, thus ensuring the stability and reliability of the photovoltaic module.
[0062] As Figure 2 shown, in one embodiment, the thickness of the release layer 500 is D, where 50 μm ≤ D ≤ 600 μm.
[0063] Exemplarily, the thickness D of the release layer 500 = 50 μm. In another embodiment, the thickness D of the release layer 500 = 100 μm. In another embodiment, the thickness D of the release layer 500 = 200 μm. In another embodiment, the thickness D of the release layer 500 = 300 μm. In another embodiment, the thickness D of the release layer 500 = 400 μm. In another embodiment, the thickness D of the release layer 500 = 560 μm. In another embodiment, the thickness D of the release layer 500 = 600 μm.
[0064] On the premise of meeting the performance requirements, selecting an appropriate thickness of the release layer 500 helps to reduce the material cost. If the thickness D of the release layer 500 is less than 50 μm, it is prone to wrinkling. If the thickness D of the release layer 500 is greater than 600 μm, the production cost is too high.
[0065] In one embodiment, the photovoltaic cell 100 includes N sub-generating cells, and the N sub-generating cells are connected in series, where N is a positive integer greater than or equal to 1.
[0066] Exemplarily, N = 1, that is, the photovoltaic cell 100 includes one sub-power generation cell. In another embodiment, N = 2, that is, the photovoltaic cell 100 includes two sub-power generation cells, and the two sub-power generation cells are arranged in series. In another embodiment, N = 5, that is, the photovoltaic cell 100 includes five sub-power generation cells, and the five sub-power generation cells are arranged in series.
[0067] In one embodiment, the number of the adhesive members 200 is at least one.
[0068] Exemplarily, the number of the adhesive members 200 is one. Exemplarily, the adhesive members 200 are laid on all surfaces of the fixed end face. In another embodiment, the adhesive members 200 are laid on all surfaces of the end face of the back encapsulation layer 400 away from the photovoltaic cell 100.
[0069] In another embodiment, the number of the adhesive members 200 is more than two, and at least two adhesive members 200 are arranged at intervals. Exemplarily, two adhesive members 200 are provided. Exemplarily, the two adhesive members 200 are arranged at intervals on the fixed end face. In another embodiment, the two adhesive members 200 are arranged at intervals on the back encapsulation layer 400. Of course, in some other embodiments, the adhesive members 200 can also be arranged in contact with each other.
[0070] It should be understood that the number of the adhesive members 200 can also be three, four, five, etc.
[0071] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.
[0072] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A photovoltaic module, characterized in that: include: A photovoltaic cell (100), the photovoltaic cell (100) comprising a power generation end surface and a fixed end surface, the power generation end surface being used for photovoltaic power generation; An adhesive member (200) is provided on the fixed end surface, and the adhesive member (200) can adhere the photovoltaic cell (100) to an external object.
2. The photovoltaic module according to claim 1, characterized in that The thickness of the adhesive member (200) is A, wherein 100 μm≤A≤1500 μm.
3. The photovoltaic module according to claim 1, characterized in that Also includes: A front encapsulation layer (300) is provided on the power generation end surface to isolate the power generation end surface of the photovoltaic cell (100) from the external environment.
4. The photovoltaic module according to claim 3, characterized in that The front encapsulation layer (300) has a thickness of B, wherein 400 μm≤B≤2700 μm.
5. The photovoltaic module according to claim 1, characterized in that Also includes: A backside encapsulation layer (400) is provided on the fixed end surface and located between the adhesive (200) and the photovoltaic cell (100) to isolate the fixed end surface of the photovoltaic cell (100) from the external environment.
6. The photovoltaic module according to claim 5, characterized in that: The backside encapsulation layer (400) has a thickness of C, wherein 400 μm≤C≤2700 μm.
7. The photovoltaic module according to claim 1, characterized in that Also includes: A release layer (500) is provided on a side of the adhesive member (200) away from the photovoltaic cell (100), and the release layer (500) is adhesively connected to the adhesive member (200) to isolate the adhesive member (200) from the external environment.
8. The photovoltaic module according to claim 7, characterized in that: The thickness of the release layer (500) is D, wherein 50 μm≤D≤600 μm.
9. The photovoltaic module according to claim 1, characterized in that: The photovoltaic cell (100) comprises N sub-power generation cells, which are connected in series, wherein N is a positive integer greater than or equal to 1.
10. The photovoltaic module according to claim 1, characterized in that: The number of the adhesive piece (200) is at least one.