A single-glass photovoltaic module packaging structure

Abstract

A single-glass photovoltaic module packaging structure includes a top glass cover plate, a bottom fixed back plate, an insulating interlayer and an interlayer fixing component. The top glass cover plate is fixedly arranged on the surface of the bottom fixed back plate, the interlayer fixing component is fixedly arranged on the other surface of the bottom fixed back plate, the insulating interlayer is arranged between the top glass cover plate and the bottom fixed back plate, and the photovoltaic module is packaged between the top glass cover plate and the insulating interlayer. After the packaging is completed, the single-glass photovoltaic panel uses the aluminum bottom fixed back plate as a back plate, has a higher structural strength, and can withstand extreme weather such as strong winds. At the same time, the bottom fixed back plate is provided with an insulating interlayer to isolate the photovoltaic module, and the bottom fixed back plate will not affect the photovoltaic module.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic modules, and specifically refers to a single-glass photovoltaic module packaging structure. Background Art

[0002] Single-glass photovoltaic panels are a type of photovoltaic product that is easy to install and has low cost, and has been widely used. The existing single-glass photovoltaic panel structure is mostly to laminate the encapsulated photovoltaic components such as cells on the backboard. The backboard is a laminate located on the back of the photovoltaic component and needs to have good insulation. The existing backboard materials are mostly made of polyester, resin and fluorocarbon film, which are high in cost, and the existing backboard structure strength is insufficient to cope with extreme weather.

[0003] At the same time, existing single-glass photovoltaic panels are difficult to repair and disassemble and maintain. Individual users are unable to disassemble and replace faulty parts. Faulty and damaged photovoltaic panels can only be scrapped, resulting in a lot of waste. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a single-glass photovoltaic module packaging structure to at least partially solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a single-glass photovoltaic module packaging structure, including a top glass cover plate, a bottom fixed back plate, an insulating interlayer and an interlayer fixing component, wherein the top glass cover plate is fixedly arranged on the surface of the bottom fixed back plate, the interlayer fixing component is fixedly arranged on the other surface of the bottom fixed back plate, the insulating interlayer is arranged between the top glass cover plate and the bottom fixed back plate, and the photovoltaic module is encapsulated between the top glass cover plate and the insulating interlayer; an insulating groove is provided on the bottom fixed back plate, a completely penetrating suction hole is provided on the bottom of the insulating groove, the edge of the insulating interlayer is arranged in the insulating groove, the interlayer fixing component includes a vacuum suction head, the vacuum suction head is arranged below the insulating groove, and the vacuum suction head is used to adsorb the insulating interlayer in the insulating groove; the material of the bottom fixed back plate is an aluminum back plate.

[0006] Furthermore, an insulating strip is provided on one side of the top glass cover plate close to the bottom fixed back plate, the position of the insulating strip corresponds to the position of the insulating groove, and the insulating strip is used to press the insulating interlayer into the insulating groove; the interlayer fixing assembly also includes a vacuum tube and a vacuum interface, the vacuum suction head is connected through the vacuum tube and the vacuum interface, the vacuum suction head is provided with a support rod, and the vacuum suction head is fixed on the bottom fixed back plate through the support rod.

[0007] Furthermore, the vacuum suction head is provided with a ventilation valve, the ventilation valve is connected to the air, and the ventilation valve is a switch valve.

[0008] Furthermore, a sealing insert is provided on one side of the top glass cover plate close to the bottom fixed back plate, and a sealing groove is provided on one side of the bottom fixed back plate close to the top glass cover plate. The positions of the sealing insert and the sealing groove correspond to each other, and the sealing insert is inserted into the sealing groove.

[0009] Furthermore, the top glass cover plate is provided with a sealing bolt, the bottom fixed back plate is provided with a sealing bolt hole, the sealing bolt is arranged in the sealing bolt hole, and the sealing bolt is connected to the sealing bolt hole through a threaded connection; The sealing bolt is also provided with a sealing spring, the two ends of which are respectively connected to the sealing bolt and the top glass cover plate, and the sealing spring is in a compressed state.

[0010] Furthermore, fixing plates are provided on both sides of the bottom fixing back plate, the positions of the fixing plates correspond to each other, and the fixing plates are provided with penetrating fixing screw holes, and the fixing screw holes and the fixing plates are used to bolt and fix the bottom fixing back plate.

[0011] Furthermore, the fixing plate is provided with a fixing insert, the fixing insert is located on the bottom surface of the fixing plate, and the fixing insert is used to insert and fix the bottom fixing backplane.

[0012] Furthermore, the sealing groove is located at the edge of the bottom fixed back plate, the end and end of the sealing groove are connected to form a closed loop, and the projection of the insulating interlayer on the bottom fixed back plate is located within the range defined by the sealing groove.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The single-glass photovoltaic panel after encapsulation of the present invention uses an aluminum bottom fixed backboard as a backboard, which has higher structural strength and can withstand extreme weather such as strong winds. At the same time, an insulating interlayer is provided on the bottom fixed backboard to isolate the photovoltaic components, and the bottom fixed backboard will not affect the photovoltaic components.

[0014] 2. When a photovoltaic module fails, the top glass cover plate can be removed and the vacuum suction head can be depressurized, so that the photovoltaic module and the insulating interlayer can be removed from the bottom fixed back plate together, which is convenient for repairing or replacing the photovoltaic module. At the same time, after the photovoltaic panel is scrapped, the bottom fixed back plate can be conveniently disassembled for recycling, reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A top three-dimensional schematic diagram of a single-glass photovoltaic module packaging structure proposed in an embodiment of the present invention; Figure 2 An exploded view of a single-glass photovoltaic module packaging structure proposed in an embodiment of the present invention; Figure 3 This is a left view of a single-glass photovoltaic module packaging structure proposed in an embodiment of the present invention; Figure 4 A top view of a single-glass photovoltaic module packaging structure proposed in an embodiment of the present invention; Figure 5 for Figure 4 The cross-sectional view along the AA direction; Figure 6 for Figure 5 The enlarged view at center Ⅰ; Figure 7 A bottom stereoscopic schematic diagram of a single-glass photovoltaic module packaging structure proposed in an embodiment of the present invention; Figure 8 for Figure 7 Magnified view at center II; Fig. 9 for Figure 7 Enlarged view at center III; Fig.10 A three-dimensional diagram of a bottom fixed back plate of a single-glass photovoltaic module packaging structure proposed in an embodiment of the present invention; Fig.11 for Fig.10 Magnified view of point IV in the middle.

[0016] Among them, 100, top glass cover plate, 200, bottom fixed back plate, 300, insulating interlayer, 400, interlayer fixing assembly, 101, sealing insert, 102, sealing bolt, 103, sealing spring, 104, insulating strip, 201, sealing groove, 202, sealing bolt hole, 203, insulating groove, 204, suction hole, 205, fixing plate, 206, fixing insert, 207, fixing screw hole, 401, vacuum suction head, 402, vacuum tube, 403, vacuum interface, 404, support rod, 405, ventilation valve.

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] This embodiment is mainly used to package and fix photovoltaic components such as photovoltaic cells. The existing single-glass photovoltaic panels have insufficient structural strength to cope with extreme weather conditions and are difficult to disassemble and maintain. Faulty and damaged photovoltaic panels can only be scrapped, resulting in a large amount of waste.

[0021] like Figure 1-Figure 11 As shown, the main structure of this embodiment includes a top glass cover plate 100 and a bottom fixed back plate 200, wherein the top glass cover plate 100 is arranged on the bottom fixed back plate 200, and the photovoltaic components are encapsulated in the top glass cover plate 100 and the bottom fixed back plate 200. The difference from the prior art is that the material of the bottom fixed back plate 200 proposed in this embodiment is an aluminum back plate. The aluminum bottom fixed back plate 200 has better structural strength and is less likely to be damaged in extreme weather such as strong winds. At the same time, it can also increase the service life of the photovoltaic panel.

[0022] In order to solve the problem that the conductivity of aluminum will affect the photovoltaic modules, the present embodiment also includes an insulating interlayer 300. The insulating interlayer 300 is applied to the bottom fixed backboard 200, and then the photovoltaic modules are encapsulated between the bottom fixed backboard 200 and the top glass cover 100. The photovoltaic modules and the aluminum bottom fixed backboard 200 are isolated by setting the bottom fixed backboard 200, thereby realizing the insulation packaging of the photovoltaic modules and ensuring that the photovoltaic modules can work normally without interference.

[0023] In order to make the insulating interlayer 300 fit tightly on the bottom fixing backplane 200 and prevent the insulating interlayer 300 from slipping on the bottom fixing backplane 200, the present embodiment further proposes an interlayer fixing component 400, which is used to fix the position of the insulating interlayer 300. Specifically, the bottom fixing backplane 200 proposed in the present embodiment is provided with an insulating groove 203, and the bottom of the insulating groove 203 is provided with a through suction hole 204, so that the interlayer fixing component 400 is fixed under the bottom fixing backplane 200. The interlayer fixing component 400 includes a vacuum suction head 401, which is arranged at a position corresponding to the insulating groove 203, and the insulating interlayer 300 is adsorbed in the insulating groove 203 through the suction hole 204, thereby achieving the fixation of the insulating interlayer 300 on the bottom fixing backplane 200.

[0024] When in use, the insulating interlayer 300 is first laid on the bottom fixed backplane 200, and part of the insulating interlayer 300 is inserted into the insulating groove 203. At this time, air is extracted from the suction hole 204 through the vacuum suction head 401, and the negative pressure generated in the insulating groove 203 adsorbs the insulating interlayer 300 to the bottom of the insulating groove 203. By respectively providing insulating grooves 203 and vacuum suction heads 401 at both ends of the bottom fixed backplane 200, the two ends of the insulating interlayer 300 are adsorbed on the bottom fixed backplane 200. The tension on the two ends of the insulating interlayer 300 pulls the insulating interlayer 300 into a taut state, thereby making the insulating interlayer 300 tightly attached to the bottom fixed backplane 200.

[0025] The photovoltaic components are then placed on the insulating interlayer 300 and laminated and fixed to complete the packaging of the single-glass photovoltaic components. The completed single-glass photovoltaic panel has an aluminum bottom fixed backboard 200 as a backboard, which has higher structural strength and can withstand extreme weather such as strong winds. At the same time, an insulating interlayer 300 is provided on the bottom fixed backboard 200 to isolate the photovoltaic components, and the bottom fixed backboard 200 will not affect the photovoltaic components.

[0026] At the same time, the insulating interlayer 300 proposed in this embodiment is fixed on the bottom fixed backboard 200 by a vacuum suction head 401. When a photovoltaic module fails, the top glass cover 100 can be removed and the vacuum suction head 401 can be depressurized to remove the photovoltaic module and the insulating interlayer 300 from the bottom fixed backboard 200, so as to facilitate the repair or replacement of the photovoltaic module. At the same time, after the photovoltaic panel is scrapped, the bottom fixed backboard 200 can be conveniently disassembled for recycling, thereby reducing material waste.

[0027] The interlayer fixing assembly 400 proposed in this embodiment also includes a vacuum tube 402 and a vacuum interface 403. The vacuum tube 402 is connected to the vacuum suction head 401. The other end of the vacuum tube 402 is connected to 493. Multiple vacuum suction heads 401 are connected to a vacuum interface 403 through the vacuum tube 402. When fixing the insulating interlayer 300, it is only necessary to connect the vacuum pump to the vacuum interface 403, and then all the vacuum suction heads 401 can be evacuated at one time, thereby completing the fixing of the insulating interlayer 300.

[0028] At the same time, the vacuum suction head 401 proposed in this embodiment is provided with a support rod 404, and the vacuum suction head 401 is fixedly arranged on the bottom fixed back plate 200 through the support rod 404. The vacuum suction head 401 always moves with the bottom fixed back plate 200. After the bottom fixed back plate 200 is fixed at the use place, the vacuum suction head 401 is also fixed on the bottom fixed back plate 200 to continuously adsorb the insulating interlayer 300. The insulating interlayer 300 is continuously fixed in position by the vacuum suction head 401 to avoid slippage or wrinkling of the insulating interlayer 300 during use.

[0029] The vacuum suction head 401 proposed in this embodiment is provided with a vent valve 405, which is a normally closed switch valve. When a vacuum pump is used to evacuate the inside of the vacuum suction head 401 through the vacuum tube 402, the vent valve 405 is in a closed state, and the pressure inside the vacuum suction head 401 can drop rapidly.

[0030] When the photovoltaic module is packaged, the vent valve 405 is still in a closed state, so as to keep the pressure inside the vacuum suction head 401 unchanged and achieve continuous adsorption and fixation of the insulating interlayer 300. If the photovoltaic module can be used normally, there is no need to make any changes to the vent valve 405.

[0031] If a photovoltaic module fails and needs to be disassembled for repair or replacement, the ventilation valve 405 is adjusted to be in an open state. After the ventilation valve 405 is connected to the outside atmosphere, the pressure in the vacuum suction head 401 increases, and the insulating interlayer 300 is no longer adsorbed and fixed. At this time, the photovoltaic module can be removed together with the insulating interlayer 300 for processing.

[0032] By providing the ventilation valve 405 as a switch for disassembling the photovoltaic module, the photovoltaic module can be conveniently disassembled and assembled, thereby timely replacing or repairing the photovoltaic module, improving the overall utilization rate of the components, and reducing the waste of materials and energy.

[0033] The top glass cover plate 100 proposed in this embodiment is provided with a sealing insert 101 on one side close to the bottom fixed back plate 200, and a sealing groove 201 is provided on one side close to the top glass cover plate 100 of the bottom fixed back plate 200. The positions of the sealing insert 101 and the sealing groove 201 correspond to each other, and the sealing insert 101 can be inserted into the sealing groove 201. By inserting the sealing insert 101 into the sealing groove 201, the top glass cover plate 100 is positioned and fixed on the bottom fixed back plate 200. In actual use, this plug-in structure can improve the connection strength between the top glass cover plate 100 and the bottom fixed back plate 200, and reduce the probability of the top glass cover plate 100 falling off.

[0034] In order to further strengthen the fixing and sealing effect between the top glass cover plate 100 and the bottom fixed back plate 200, a sealing material such as resin or glass glue is coated at the connection position of the sealing insert 101 and the sealing groove 201 to strengthen the adhesion between the top glass cover plate 100 and the bottom fixed back plate 200, and at the same time play a role in waterproofing and dustproofing.

[0035] The top glass cover plate 100 proposed in this embodiment is provided with a sealing bolt 102, and the bottom fixed back plate 200 is provided with a sealing bolt hole 202. The sealing bolt 102 is arranged in the sealing bolt hole 202, and the sealing bolt 102 is connected to the sealing bolt hole 202 through a thread. In this embodiment, the top glass cover plate 100 is fixed to the sealing bolt hole 202 on the bottom fixed back plate 200 through the sealing bolt 102. The bolt connection has the characteristics of firm connection and convenient disassembly, and the top glass cover plate 100 and the bottom fixed back plate 200 can be firmly connected together, and at the same time, the top glass cover plate 100 and the bottom fixed back plate 200 can be more conveniently disassembled.

[0036] At the same time, the sealing bolt 102 proposed in this embodiment is also provided with a sealing spring 103, and the two ends of the sealing spring 103 are respectively connected to the sealing bolt 102 and the top glass cover 100. The sealing spring 103 is in a compressed state. The sealing spring 103 plays an automatic locking and anti-slip role, which can prevent the sealing bolt 102 from loosening from the sealing bolt hole 202.

[0037] In actual use, the sealing spring 103 is placed between the sealing bolt 102 and the top glass cover plate 100, and the sealing spring 103 is in a compressed state. The elastic force generated by the sealing spring 103 acts on the sealing bolt 102 and the top glass cover plate 100, so that the sealing bolt 102 has a tendency to move outward, thereby increasing the friction force of the thread between the sealing bolt 102 and the sealing bolt hole 202, playing a role in preventing the thread from slipping, preventing the sealing bolt 102 from loosening and falling off in the sealing bolt hole 202, and thereby improving the fixed connection effect between the top glass cover plate 100 and the bottom fixed back plate 200.

[0038] The bottom fixed back plate 200 proposed in this embodiment is provided with fixing plates 205 on both sides, and the positions of the fixing plates 205 correspond to each other. The fixing plates 205 are provided with penetrating fixing screw holes 207. The fixing screw holes 207 and the fixing plates 205 are used to bolt and fix the bottom fixed back plate 200. The fixing plates 205 are arranged on the bottom fixed back plate 200, which can facilitate the user to fix the bottom fixed back plate 200 on the bracket, and the fixing screw holes 207 on the fixing plates 205 are used to fix the bottom fixed back plate 200 with bolts, so that the overall installation of the photovoltaic panel is simpler and more convenient.

[0039] The fixing plate 205 proposed in this embodiment is provided with a fixing plug 206, and the fixing plug 206 is located on the bottom surface of the fixing plate 205. The fixing plug 206 is used to insert and fix the bottom fixing back plate 200. When the user fixes the photovoltaic panel, he can choose to use the fixing screw hole 207 for bolting, or choose to use the fixing plug 206 for plug-in connection. A more suitable fixing method can be selected according to the different brackets and the different working conditions and installation postures of the photovoltaic panel.

[0040] The sealing groove 201 proposed in this embodiment is located at the edge of the bottom fixed backboard 200, and the end of the sealing groove 201 is connected to form a closed loop. The projection of the insulating interlayer 300 on the bottom fixed backboard 200 is located within the range circled by the sealing groove 201, so that the insulating interlayer 300 and the photovoltaic module are completely encapsulated under the top glass cover plate 100. The sealing of the insulating interlayer 300 and the photovoltaic module is achieved through the cooperation between the sealing insert 101 and the sealing groove 201, thereby improving the overall waterproof and dustproof performance of the photovoltaic panel.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A single-glass photovoltaic module packaging structure, characterized in that: The invention comprises a top glass cover plate (100), a bottom fixed back plate (200), an insulating interlayer (300) and an interlayer fixing assembly (400), wherein the top glass cover plate (100) is fixedly arranged on the surface of the bottom fixed back plate (200), the interlayer fixing assembly (400) is fixedly arranged on the other surface of the bottom fixed back plate (200), the insulating interlayer (300) is arranged between the top glass cover plate (100) and the bottom fixed back plate (200), and the photovoltaic assembly is encapsulated between the top glass cover plate (100) and the insulating interlayer (300); An insulating groove (203) is provided on the bottom fixing back plate (200), a completely penetrating suction hole (204) is provided at the bottom of the insulating groove (203), an edge of the insulating interlayer (300) is provided in the insulating groove (203), and the interlayer fixing component (400) comprises a vacuum suction head (401), the vacuum suction head (401) is provided below the insulating groove (203), and the vacuum suction head (401) is used to absorb the insulating interlayer (300) in the insulating groove (203); The material of the bottom fixed back plate (200) is an aluminum back plate.

2. The single-glass photovoltaic module packaging structure according to claim 1, characterized in that: An insulating strip (104) is provided on a surface of the top glass cover plate (100) close to the bottom fixed back plate (200), the position of the insulating strip (104) corresponds to the position of the insulating groove (203), and the insulating strip (104) is used to press the insulating interlayer (300) into the insulating groove (203); The interlayer fixing assembly (400) further comprises a vacuum tube (402) and a vacuum interface (403), the vacuum suction head (401) is connected via the vacuum tube (402) and the vacuum interface (403), a support rod (404) is provided on the vacuum suction head (401), and the vacuum suction head (401) is fixedly arranged on the bottom fixing back plate (200) via the support rod (404).

3. The single-glass photovoltaic module packaging structure according to claim 2, characterized in that: The vacuum suction head (401) is provided with a ventilation valve (405), the ventilation valve (405) is in communication with the air, and the ventilation valve (405) is an on-off valve.

4. The single-glass photovoltaic module packaging structure according to claim 1, characterized in that: A sealing insert (101) is provided on one side of the top glass cover plate (100) close to the bottom fixed back plate (200), and a sealing groove (201) is provided on one side of the bottom fixed back plate (200) close to the top glass cover plate (100); the positions of the sealing insert (101) and the sealing groove (201) correspond to each other, and the sealing insert (101) is inserted into the sealing groove (201).

5. The single-glass photovoltaic module packaging structure according to claim 1, characterized in that: The top glass cover plate (100) is provided with a sealing bolt (102), the bottom fixed back plate (200) is provided with a sealing bolt hole (202), the sealing bolt (102) is arranged in the sealing bolt hole (202), and the sealing bolt (102) and the sealing bolt hole (202) are connected via a thread; A sealing spring (103) is also provided on the sealing bolt (102), and two ends of the sealing spring (103) are respectively connected to the sealing bolt (102) and the top glass cover plate (100), and the sealing spring (103) is in a compressed state.

6. The single-glass photovoltaic module packaging structure according to claim 1, characterized in that: Fixing plates (205) are provided on both sides of the bottom fixing back plate (200), the positions of the fixing plates (205) correspond to each other, and the fixing plates (205) are provided with fixing screw holes (207) passing through, and the fixing screw holes (207) and the fixing plates (205) are used to bolt and fix the bottom fixing back plate (200).

7. The single-glass photovoltaic module packaging structure according to claim 6, characterized in that: The fixing plate (205) is provided with a fixing insert (206), the fixing insert (206) is located on the bottom surface of the fixing plate (205), and the fixing insert (206) is used to insert and fix the bottom fixing back plate (200).

8. The single-glass photovoltaic module packaging structure according to claim 4, characterized in that: The sealing groove (201) is located at the edge of the bottom fixed back plate (200), the end of the sealing groove (201) is connected to form a closed loop, and the projection of the insulating interlayer (300) on the bottom fixed back plate (200) is located within the range enclosed by the sealing groove (201).

Images