Photovoltaic module glass backboard and photovoltaic module

Abstract

The utility model relates to the technical field of photovoltaic power generation, particularly provides a photovoltaic module glass backboard and a photovoltaic module, and aims to solve the problem that a glass backboard in a conventional photovoltaic module is easy to crack and damage. Therefore, the photovoltaic module glass backboard comprises a backboard body, the backboard body is provided with at least one via hole, a reinforcing member is arranged in the via hole, the reinforcing member abuts against the inner wall of the via hole, and the reinforcing member is provided with a threading hole. According to the utility model, the reinforcer is arranged in the via hole of the backboard body, and the reinforcer is tightly abutted against the inner wall of the via hole, so that the structural strength of the via hole is increased, the backboard body is prevented from cracking under the action of external force, and the overall stability and durability of the photovoltaic module are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic power generation technical field, specifically provide a kind of photovoltaic module glass backboard and photovoltaic module. BACKGROUND

[0002] With the growing demand for renewable energy worldwide, photovoltaic power generation as a clean, renewable energy form, its importance is increasingly prominent. The core of photovoltaic power generation technology is to convert solar energy into electricity efficiently, and this process is mainly achieved through solar panels, i.e. photovoltaic modules. Photovoltaic modules are usually composed of multiple layers, including a protective glass cover, EVA (ethylene-vinyl acetate copolymer) adhesive film for encapsulation and insulation, key cell pieces for converting solar energy into electricity, and a backboard located at the back. These components together form a complete photovoltaic module.

[0003] However, in the actual deployment and application process, photovoltaic modules face a variety of complex and changing environmental challenges, among which extreme weather conditions are particularly prominent. For example, hail, as a common natural disaster, can cause serious damage to the glass panels of photovoltaic modules due to its high-speed impact, especially at the hole positions on the glass panels used to connect the junction boxes. This is because the structure in this area is relatively weak and stress is concentrated, making it extremely easy to cause glass panel rupture. This not only directly damages the physical integrity of the photovoltaic module, but also can cause safety problems such as circuit short circuit and electric leakage, seriously affecting the normal operation and power generation efficiency of the photovoltaic system.

[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. SUMMARY

[0005] The utility model aims to solve the above technical problems, i.e. to solve the problem of easy rupture of the glass backboard in the existing photovoltaic module.

[0006] In a first aspect, the utility model provides a photovoltaic module glass backboard, comprising a backboard body, the backboard body is provided with at least one through hole, a reinforcing member is arranged in the through hole, the reinforcing member abuts against the inner wall of the through hole, and the reinforcing member has a threading hole.

[0007] In the preferred technical solution of the above photovoltaic module glass backboard, the threading hole is provided with a plurality of threading holes, and the plurality of threading holes are arranged in a linear type on the reinforcing member.

[0008] In the preferred technical solution of the above photovoltaic module glass backboard, the reinforcing member comprises a reinforcing part and a fixing part, the reinforcing part is located in the through hole, and the reinforcing part closely abuts against the inner wall of the through hole, and the fixing part can abut against the surface of the backboard body.

[0009] In the preferred technical scheme of the photovoltaic module glass backboard, a sealant is arranged between the fixed part and the inner wall of the through hole, and / or

[0010] A sealant is arranged between the fixed part and the glass backboard.

[0011] In the preferred technical scheme of the photovoltaic module glass backboard, the reinforcing part and the fixed part are made of elastic material, and / or

[0012] The reinforcing part and the fixed part are integrally formed.

[0013] In the preferred technical scheme of the photovoltaic module glass backboard, the through hole is arranged in a non-central region of the backboard body.

[0014] In the preferred technical scheme of the photovoltaic module glass backboard, a protection strip is arranged on the backboard body, and the protection strip can wrap the edge of the backboard body.

[0015] In the preferred technical scheme of the photovoltaic module glass backboard, the protection strip is made of silicone rubber material.

[0016] In a second aspect, the utility model provides a photovoltaic module, including frame and photovoltaic module body, the frame is set in the outer surface of photovoltaic module body, the photovoltaic module body includes the front plate, upper layer glue film, cell piece, lower layer glue film and backboard that are sequentially arranged from top to bottom, be equipped with junction box on the backboard, the backboard is the photovoltaic module glass backboard of above.

[0017] In the preferred technical scheme of the photovoltaic module, the lead of the cell piece passes through the threading hole and is electrically connected with the junction box.

[0018] It can be understood by those skilled in the art that the technical scheme of the utility model provides a photovoltaic module glass backboard, which comprises a backboard body, the backboard body is provided with at least one through hole, a reinforcing part is arranged in the through hole, the reinforcing part abuts against the inner wall of the through hole, and the reinforcing part is provided with a threading hole. In the case of using the above technical scheme, the utility model can solve the problem that the glass backboard of the existing photovoltaic module is easy to burst and be damaged. Specifically, the reinforcing part is arranged in the through hole of the backboard body, and the reinforcing part abuts against the inner wall of the through hole tightly, so that the structural strength of the through hole is increased, and the backboard body is prevented from bursting under the action of external force. In addition, the reinforcing part can also provide additional support and reinforcement, so as to ensure the overall stability and durability of the photovoltaic module.

[0019] Further, the threading holes are provided in plurality, and the plurality of threading holes are provided in a linear type on the reinforcing member in a spaced manner. Through the arrangement, the electric wires can be evenly distributed on the reinforcing member according to actual needs, the stress on the reinforcing member is dispersed, and the damage caused by the excessive local stress of the electric wires is avoided. Meanwhile, the design can also increase the contact area between the reinforcing member and the back plate body, and improve the overall bonding strength.

[0020] Further, the reinforcing member comprises a reinforcing portion and a fixing portion, the reinforcing portion is located in the via hole, and the reinforcing portion is closely attached to the inner wall of the via hole, and the fixing portion can abut against the surface of the back plate body. Through the close attachment of the reinforcing portion to the inner wall of the via hole, the reinforcing portion can provide additional support force, so that the via hole is more solid. The fixing portion is located on the outer side of the reinforcing portion and can abut against the surface of the back plate body. Through the close contact with the surface of the back plate body, the fixing portion can provide additional friction force or adhesive force, so as to prevent the reinforcing member from loosening or falling off during long-term use.

[0021] Further, the via hole is arranged in a non-central area of the back plate body. Since the central area of the back plate body is usually the position that bears the maximum load and stress, by arranging the via hole in the non-central area of the back plate body, the stress concentration in the central position of the back plate body can be avoided, so as to reduce the risk of rupture caused by excessive stress and maintain the overall structural stability of the back plate body. BRIEF DESCRIPTION OF DRAWINGS

[0022] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0023] Figure 1 is a structural schematic view of the back plate body of the present application;

[0024] Figure 2 is a top view of the reinforcing member of the present application;

[0025] Figure 3 is a side view of the reinforcing member of the present application.

[0026] LIST OF REFERENCE NUMERALS

[0027] 1, back plate body; 11, via hole; 12, protection strip;

[0028] 2, reinforcing member; 21, threading hole; 22, reinforcing portion; 23, fixing portion. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. For example, although the following embodiments are introduced in combination with the photovoltaic module, the provided photovoltaic module glass backboard of the present application is also applicable to other products which need to solve the problem of easy glass burst damage.

[0030] It should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "arranged", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or detachably connected, or integrally connected. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0031] Based on the problem of easy glass burst damage of the existing photovoltaic module glass backboard pointed out in the background art, the present application provides a photovoltaic module glass backboard and a photovoltaic module, which aims to effectively solve the problem of easy glass burst damage of the glass backboard by arranging a reinforcing member in the backboard body hole.

[0032] In the use process of the photovoltaic module glass backboard, due to the need to connect wires or other components, it is often necessary to open a threading hole on the glass backboard. However, the glass material itself has brittleness, and the existence of the threading hole will weaken the overall strength of the glass backboard, especially under external force, the threading hole is prone to burst.

[0033] In order to solve the above problems, as shown in Figure 1 and Figure 2 The present application provides a photovoltaic module glass backboard, which comprises a backboard body 1, the backboard body 1 is provided with at least one through hole 11, a reinforcing member 2 is arranged in the through hole 11, the reinforcing member 2 abuts against the inner wall of the through hole 11, and the reinforcing member 2 is provided with a threading hole 21.

[0034] The backboard body 1 is provided with at least one through hole 11 for passing through wires or other connecting members. The reinforcing member 2 is arranged in the through hole 11, and the reinforcing member 2 abuts against the inner wall of the through hole 11, thereby increasing the structural strength at the through hole 11, preventing the backboard body 1 from bursting at the through hole 11 under external force. In addition, the reinforcing member 2 can also provide additional support and reinforcement, ensuring the overall stability and durability of the photovoltaic module. The reinforcing member 2 is designed with a threading hole 21, allowing the wires or other small components to safely and orderly pass through the backboard body 1, while maintaining the integrity of the structure.

[0035] When it is necessary to connect wires from one side of the photovoltaic module to the other, the wires can pass through the wire hole 21 on the reinforcing member 2 through the back panel body 1, thus improving the structural strength at the through hole 11 without affecting the wire threading.

[0036] It should be noted that the shape and size of the reinforcing member 2 should be determined according to the size and shape of the through hole 11 and the layout requirements of the wire hole 21, to ensure that the reinforcing member 2 can fit tightly against the inner wall of the through hole 11 and provide sufficient support. This utility model does not specifically limit the specific shape and size of the reinforcing member 2, as long as it can be adapted to the shape and size of the through hole 11.

[0037] Preferably, such as Figure 2 As shown, multiple wire holes 21 are provided, and the multiple wire holes 21 are opened in a straight line on the reinforcing member 2 at intervals.

[0038] Multiple wire holes 21 are spaced apart in a straight line, allowing for more flexible wire placement on the reinforcing member 2. This design allows for even distribution of wires on the reinforcing member 2 according to actual needs, dispersing stress on the reinforcing member 2 and preventing damage caused by excessive local stress due to overly concentrated wires. At the same time, this design also increases the contact area between the reinforcing member 2 and the back plate body 1, improving the overall bonding strength.

[0039] It should be noted that the number of wire-passing holes 21 should be determined according to actual needs. For example, the number of wire-passing holes 21 can be designed based on the number and layout requirements of the wires in the photovoltaic module. Furthermore, the size of the wire-passing holes 21 is determined based on the diameter of the wire. For example, in this invention, the diameter of the wire-passing hole 21 is slightly larger than the diameter of the wire to ensure that the wire can pass through smoothly with some slack.

[0040] Preferably, such as Figure 3 As shown, the reinforcing member 2 includes a reinforcing part 22 and a fixing part 23. The reinforcing part 22 is located in the through hole 11 and is in close contact with the inner wall of the through hole 11. The fixing part 23 can abut against the surface of the back plate body 1.

[0041] The reinforcing part 22, located within the through hole 11, is the core component of the reinforcing member 2. Its main function is to enhance the structural strength at the through hole 11, preventing the backplate body 1 from cracking under external force. Through its close contact with the inner wall of the through hole 11, the reinforcing part 22 provides additional support, making the through hole 11 more robust. The fixing part 23, located outside the reinforcing part 22, abuts against the surface of the backplate body 1. Its main function is to ensure a stable connection between the reinforcing member 2 and the backplate body 1. Through close contact with the surface of the backplate body 1, the fixing part 23 provides additional friction or adhesive force, preventing the reinforcing member 2 from loosening or falling off during long-term use.

[0042] Preferably, a sealant is arranged between the fixing portion 23 and the inner wall of the through hole 11.

[0043] The sealant can form a tight waterproof barrier between the fixing portion 23 and the inner wall of the through hole 11, effectively preventing moisture and humidity from entering the interior of the photovoltaic module through the through hole 11, thereby avoiding problems such as short circuiting of the circuit, corrosion, etc. In addition, the sealant can also increase the adhesion between the fixing portion 23 and the backsheet body 1, further ensuring the stable combination of the reinforcing member 2 and preventing loosening or falling off due to vibration or temperature change during long-term use.

[0044] Preferably, a sealant is arranged between the fixing portion 23 and the backsheet body 1.

[0045] The sealant can effectively fill the small gap between the fixing portion 23 and the backsheet body 1, preventing external factors such as moisture, dust, gas, etc. from penetrating into the interior of the photovoltaic module. In addition, the sealant can also increase the adhesion between the fixing portion 23 and the backsheet body 1, thereby improving the stability of the entire structure and helping to prevent loosening or falling off due to vibration, temperature change, or external force during long-term use.

[0046] Exemplarily, the sealant can be a hot melt sealant, a liquid sealant, etc., and the specific type of the sealant is not limited in the present application.

[0047] Preferably, the reinforcing portion 22 and the fixing portion 23 are made of an elastic material.

[0048] The elastic material can absorb and disperse stress, reducing structural damage caused by external impact or vibration. In addition, the elastic material generally has good fatigue resistance and can maintain stable performance during long-term use.

[0049] Exemplarily, the reinforcing portion 22 and the fixing portion 23 can be made of rubber (such as natural rubber, butyl rubber, silicone rubber, etc.), thermoplastic elastomer (such as TPU, TPEE, etc.), elastic polyurethane foam, etc., and the specific type of the elastic material is not limited in the present application.

[0050] Preferably, the reinforcing portion 22 and the fixing portion 23 are integrally formed.

[0051] The one-piece design reduces the connection points between components, thereby reducing the risk of structural damage due to connection failure. In addition, the seamless connection between the reinforcing portion 22 and the fixing portion 23 provides better overall strength, enabling it to withstand greater loads and stresses, further reducing the risk of the backsheet body 1 at the through hole 11 bursting.

[0052] Preferably, as shown in Figure 1 the through hole 11 is arranged in a non-central region of the backsheet body 1.

[0053] Since the central region of the backboard body 1 is usually the position bearing the maximum load and stress, placing the via hole 11 in the non-central region can avoid stress concentration in the central position of the backboard body 1, thereby reducing the risk of rupture caused by excessive stress and maintaining the overall structural stability of the backboard body 1.

[0054] Preferably, as shown in the drawings, a protective strip 12 is arranged on the backboard body 1, and the protective strip 12 can wrap the edges of the backboard body 1. Figure 1

[0055] The wrap-around design provides an additional buffer layer, reducing the direct impact of external impact on the edges of the backboard body 1. This can effectively prevent the edges of the backboard body 1 from being damaged by collision, scratching or friction.

[0056] Preferably, the protective strip 12 is made of silicone rubber material.

[0057] Silicone rubber has excellent weather resistance and can resist the erosion of harsh environmental conditions such as ultraviolet rays, ozone, high temperature and low temperature. Therefore, the protective strip 12 can be used in outdoor environments for a long time without failure due to aging or deterioration. In addition, silicone rubber has excellent elasticity and flexibility, which can well adapt to the shape and size changes of the backboard body 1, so that the silicone rubber protective strip 12 can absorb and disperse stress when subjected to external force impact, thereby protecting the backboard body 1 from damage.

[0058] In addition, the utility model also provides a kind of photovoltaic module (not shown in the drawings), including frame and photovoltaic module body, frame is set on the outer surface of photovoltaic module body, and photovoltaic module body includes front plate, upper layer adhesive film, cell piece, lower layer adhesive film and backboard arranged in sequence from top to bottom, and backboard is equipped with junction box, and backboard is the photovoltaic module glass backboard described above.

[0059] The frame is designed to be fitted on the outer surface of the photovoltaic module body. This design not only provides additional protection for the photovoltaic module, preventing it from being damaged by external environmental factors such as wind and rain, impact, etc., but also enhances the overall structural strength of the photovoltaic module, making it more stable during installation and use.

[0060] Illustratively, the material of the frame is an alloy material or a composite material, the alloy material can be aluminum alloy, stainless steel, magnesium alloy, etc., and the composite material can be GFRP, carbon fiber composite material, etc. These materials have good performance and can protect and support the entire photovoltaic module. Of course, in other embodiments, the material of the frame can also be plastic, rubber, etc. The utility model does not specifically limit the material of the frame as long as it can effectively protect the photovoltaic module.

[0061] ​The photovoltaic module body is the core part of the photovoltaic module, responsible for converting light energy into electrical energy. Among them, the main function of the front plate is to protect the internal battery from the influence of the external environment, while allowing sunlight to penetrate and shine on the battery. The upper adhesive film is located between the front plate and the battery, playing the role of bonding and buffering, ensuring the close fit between the front plate and the battery, while preventing moisture and dust and other impurities from entering the inside of the module. The battery is the most important part of the photovoltaic module, which is responsible for converting light energy into electrical energy. Exemplarily, the battery is usually made of semiconductor materials such as silicon, with high photoelectric conversion efficiency. The lower adhesive film is located between the battery and the back plate, also playing the role of bonding and buffering, protecting the battery from direct impact of the back plate and the external environment. The back plate is located at the bottom of the photovoltaic module, playing the role of closing and protecting, to ensure the stability and durability of the photovoltaic module during long-term use.

[0062] Preferably, the lead wire of the battery passes through the threading hole 21 and is electrically connected with the junction box.

[0063] Through the threading hole 21, the lead wire of the battery can conveniently pass through the back plate and be connected with the electrical elements in the junction box. This design avoids the complex wiring process, reduces the number of connection points, and thus reduces the risk of electrical failure.

[0064] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principles of the utility model, and the technical schemes after these changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A photovoltaic module glass backsheet, characterized in that, Includes a back plate body (1), the back plate body (1) having at least one through hole (11), a reinforcing member (2) being provided in the through hole (11), the reinforcing member (2) abutting against the inner wall of the through hole (11), and the reinforcing member (2) having a wire hole (21).

2. The photovoltaic module glass backsheet according to claim 1, characterized in that, The wire-passing holes (21) are provided in multiple ways, and the multiple wire-passing holes (21) are opened in a straight line at intervals on the reinforcing member (2).

3. The photovoltaic module glass backsheet according to claim 2, characterized in that, The reinforcing member (2) includes a reinforcing part (22) and a fixing part (23). The reinforcing part (22) is located in the through hole (11) and the reinforcing part (22) is in close contact with the inner wall of the through hole (11). The fixing part (23) can abut against the surface of the back plate body (1).

4. The photovoltaic module glass backsheet according to claim 3, characterized in that, A sealant is provided between the fixing part (23) and the inner wall of the through hole (11), and / or A sealant is provided between the fixing part (23) and the back plate body (1).

5. The photovoltaic module glass backsheet according to claim 3, characterized in that, The reinforcing part (22) and the fixing part (23) are made of elastic material, and / or The reinforcing part (22) and the fixing part (23) are integrally formed.

6. The photovoltaic module glass backsheet according to claim 1, characterized in that, The via (11) is located in the non-central area of ​​the back plate body (1).

7. The photovoltaic module glass backsheet according to claim 1, characterized in that, The back panel body (1) is provided with a protective strip (12), which can cover the edge of the back panel body (1).

8. The photovoltaic module glass backsheet according to claim 7, characterized in that, The protective strip (12) is made of silicone rubber.

9. A photovoltaic module, comprising a frame and a photovoltaic module body, wherein the frame is sleeved on the outer surface of the photovoltaic module body, and the photovoltaic module body comprises, from top to bottom, a front panel, an upper encapsulant film, solar cells, a lower encapsulant film, and a back panel, wherein a junction box is provided on the back panel, characterized in that, The backsheet is the photovoltaic module glass backsheet as described in any one of claims 1 to 8.

10. The photovoltaic module according to claim 9, characterized in that, The lead wire of the battery cell passes through the wire hole (21) and is electrically connected to the junction box.

Images