Frame and junction box integrated packaging structure

Abstract

The invention provides a frame and junction box integrated packaging structure, the frame and junction box integrated packaging structure comprises a packaging frame, a packaging body and a sealing cover, the packaging frame sleeves a photovoltaic panel along the circumferential direction of the photovoltaic panel, the packaging body is connected with the packaging frame, the extension direction of the packaging body is consistent with the width direction of the photovoltaic panel, and the sealing cover is arranged on the packaging body. The packaging body is provided with a packaging groove, the extension direction of the packaging groove is consistent with the extension direction of the packaging body, the opening of the packaging groove faces the side away from the photovoltaic panel, the packaging groove is used for installing a diode, and in the thickness direction of the photovoltaic panel, the packaging body is overlapped with a bus bar of the photovoltaic module and is located above the bus bar. The sealing cover is connected with the packaging body, at least part of the sealing cover is arranged in the packaging groove, and the sealing cover is matched with a groove opening of the packaging groove so as to be used for sealing the packaging groove. The frame and junction box integrated packaging structure has the advantages of being high in strength and capable of reducing light shielding.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic modules, and in particular to an integrated packaging structure of a frame junction box. Background Art

[0002] With the widespread application of renewable energy, photovoltaic power generation, as a clean and renewable energy form, has received widespread attention and rapid development. As the core part of the photovoltaic power generation system, the performance and stability of photovoltaic panels (photovoltaic modules) are crucial to the entire system. In the design and manufacture of photovoltaic panels, the frame and junction box are two key components, which respectively play the role of fixing and protecting the photovoltaic panels and realizing electrical connections.

[0003] In the related art, the packaging frame and the junction box are two parts, and the installation steps are cumbersome, which is not conducive to simplifying production and reducing costs. In addition, the packaging frame and the junction box lack a supporting structure in the middle after being assembled, which affects the overall strength of the module. In addition, the frame and the junction box block light on the back of the module, which affects the double-sidedness of the module. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides an integrated packaging structure for a frame junction box, which has the advantages of high strength and the ability to reduce light shielding.

[0006] The frame junction box integrated packaging structure according to an embodiment of the present invention includes:

[0007] A packaging frame, wherein the packaging frame is mounted on the photovoltaic panel along the circumference of the photovoltaic panel;

[0008] A packaging body, wherein the packaging body is connected to the packaging frame, the extension direction of the packaging body is consistent with the width direction of the photovoltaic panel, the packaging body has a packaging groove, the extension direction of the packaging groove is consistent with the extension direction of the packaging body, and the opening of the packaging groove faces away from the photovoltaic panel. The packaging groove is used to install a diode. In the thickness direction of the photovoltaic panel, the packaging body is overlapped with the bus bar of the photovoltaic module and is located above the bus bar;

[0009] The sealing cover is connected to the packaging body, at least a portion of the sealing cover is placed in the packaging groove, and the sealing cover is adapted to the notch of the packaging groove to seal the packaging groove.

[0010] The frame junction box integrated packaging structure of the embodiment of the present invention simplifies the assembly steps by integrating the frame and the junction box, which is conducive to reducing production costs and improving production efficiency. In addition, the packaging body and the busbar are overlapped to provide an additional support structure, enhance the overall strength of the component, and improve the impact resistance and durability of the photovoltaic panel.

[0011] In some embodiments, the packaging body includes a first side wall and a second side wall, the first side wall and the second side wall are relatively arranged on both sides of the cover along the width direction of the photovoltaic panel, and at least one of the first side wall and the second side wall is inclined compared to the photovoltaic panel.

[0012] In some embodiments, the width of the package body gradually decreases along a direction from the photovoltaic panel to the package body.

[0013] In some embodiments, the integrated packaging structure of the border junction box of the embodiment of the present invention also includes a first reflector and a second reflector, the first reflector is connected to the first side wall and is located on the side of the first side wall away from the second side wall, the second reflector is connected to the second side wall and is located on the side of the second side wall away from the first side wall, and the first reflector and the second reflector are adapted to the length of the packaging body.

[0014] In some embodiments, the first reflector is integrally formed with the first side wall, and the second reflector is integrally formed with the second side wall.

[0015] In some embodiments, the packaging frame includes a first protrusion and a second protrusion, the first protrusion and the second protrusion extend in a direction toward the photovoltaic panel, and the first protrusion and the second protrusion are arranged at intervals in the height direction of the packaging frame, the first protrusion and the second protrusion define an installation area, and a portion of the photovoltaic panel is placed in the installation area.

[0016] In some embodiments, the packaging frame further includes an extension portion, an extension direction of the extension portion is consistent with a height direction of the packaging frame, and the extension portion is arranged adjacent to the packaging body, and the packaging body is detachably connected to the extension portion.

[0017] In some embodiments, the package body includes a connecting portion connected to any one of the first side wall and the second side wall, and the connecting portion is connected to the extending portion.

[0018] In some embodiments, the packaging body also includes a telescopic part, which is connected to the cover and movable relative to the cover along the width direction of the photovoltaic panel. The telescopic part has an installation groove, and the notch of the installation groove is located at one end of the telescopic part away from the packaging body.

[0019] In some embodiments, the frame junction box integrated packaging structure of the embodiment of the present invention further includes a filling piece, and the filling piece is used to fill the packaging groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the use of the frame junction box integrated packaging structure of an embodiment of the present invention.

[0021] Figure 2 It is a plan view of the integrated packaging structure of the frame junction box according to an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 The AA cross-sectional view is shown in FIG.

[0023] Figure 4 It is a schematic diagram of the packaging body structure of the frame junction box integrated packaging structure of an embodiment of the present invention.

[0024] Figure 5 yes Figure 4 The BB cross-sectional schematic diagram is shown in FIG.

[0025] Reference numerals:

[0026] 100. Photovoltaic panels,

[0027] 1. packaging frame, 11. first protrusion, 12. second protrusion, 13. extension part,

[0028] 2. packaging body, 20. packaging groove, 21. first side wall, 22. second side wall, 23. connecting part, 24. telescopic part, 241. mounting groove,

[0029] 3. Capping,

[0030] 41. A first reflective member, 42. A second reflective member. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] like Figure 1-Figure 5 As shown, the frame junction box integrated packaging structure of the embodiment of the present invention includes: a packaging frame 1, a packaging body 2 and a cover 3.

[0033] The packaging frame 1 is mounted on the photovoltaic panel 100 along the circumference of the photovoltaic panel 100. The packaging body 2 is connected to the packaging frame 1, and the extension direction of the packaging body 2 is parallel to the width direction of the photovoltaic panel 100 (such as Figure 1 The package body 2 has a package groove 20, the extension direction of the package groove 20 is consistent with the extension direction of the package body 2, and the opening of the package groove 20 faces away from the photovoltaic panel 100. The package groove 20 is used to install the diode. In the thickness direction of the photovoltaic panel 100 (such as Figure 1 In the vertical direction of the photovoltaic module, the packaging body 2 is overlapped with the busbar of the photovoltaic module and is located above the busbar. The cover 3 is connected to the packaging body 2, at least part of the cover 3 is placed in the packaging groove 20, and the cover 3 is adapted to the notch of the packaging groove 20 to block the packaging groove 20.

[0034] Specifically, Figure 1-Figure 4 As shown, the inner peripheral wall of the packaging frame 1 is adapted to the outer peripheral wall of the photovoltaic panel 100, so that the packaging frame 1 can be mounted on the photovoltaic panel 100 in the circumferential direction of the photovoltaic panel 100 to fix and protect the photovoltaic panel 100. The packaging body 2 and the packaging frame 1 can be detachably connected by bolts, plug-ins or snap-ons to facilitate installation and removal. The cover 3 can be adapted to the notch of the packaging slot 20 to block the packaging slot 20, prevent moisture and other contaminants from entering, avoid external interference to the diode and other devices in the packaging slot 20, and keep the internal components of the packaging slot 20 stable.

[0035] It is understandable that the packaging frame 1 is used to fix the photovoltaic panel 100 and provide a mounting platform for the packaging body 2 to ensure the overall strength of the structure. Optionally, the packaging frame 1 is usually made of a material with strong weather resistance to adapt to the outdoor environment, such as a composite material such as aluminum alloy. The extension direction of the packaging body 2 is consistent with the left and right direction, and the packaging body 2 is located above the bus bar, which reduces the shielding area of ​​the packaging body 2 and ensures the power generation effect of the photovoltaic panel 100.

[0036] That is to say, the frame junction box integrated packaging structure of the embodiment of the present invention simplifies the assembly steps by integrating the frame and the junction box, which is conducive to reducing production costs and improving production efficiency. In addition, the packaging body 2 is arranged in an overlapping manner with the bus bar, providing an additional support structure, enhancing the overall strength of the component, and improving the impact resistance and durability of the photovoltaic panel 100.

[0037] In some embodiments, the packaging body 2 includes a first side wall 21 and a second side wall 22, which are relatively arranged on both sides of the cover 3 along the width direction of the photovoltaic panel 100, and at least one of the first side wall 21 and the second side wall 22 is inclined relative to the photovoltaic panel 100.

[0038] Specifically, Figure 1-Figure 4 As shown, the first side wall 21 and the second side wall 22 are arranged relatively at the front and rear sides of the cover 3 in the front-to-back direction. In the first side wall 21 and the second side wall 22, the first side wall 21 can be arranged obliquely relative to the photovoltaic panel 100; or the second side wall 22 can be arranged obliquely relative to the photovoltaic panel 100; or both the first side wall 21 and the second side wall 22 can be arranged obliquely relative to the photovoltaic panel 100.

[0039] It can be understood that at least one of the first side wall 21 and the second side wall 22 is inclined relative to the photovoltaic panel 100, so that the overall packaging body 2 can present a "conical" structure, that is, the lower end of the packaging body 2 is wider than the upper end to reduce the shading area of ​​the packaging body 2 to the photovoltaic panel 100.

[0040] Preferably, the width of the package body 2 gradually decreases in the direction from the photovoltaic panel 100 to the package body 2. Figure 1-Figure 4 As shown, the transverse area of ​​the package body 2 gradually decreases from bottom to top. That is, the upper end of the package body 2 is narrower than the lower end, so that during use, the irradiation area on the photovoltaic panel 100 is larger, which helps the photovoltaic panel 100 to better receive sunlight and improves the power generation efficiency of the photovoltaic panel 100.

[0041] In addition, the first side wall 21 and the second side wall 22 are arranged obliquely compared to the photovoltaic panel 100, so that the structural strength of the package body 2 is higher, and the photovoltaic panel 100 is further protected from mechanical damage. The first side wall 21 and the second side wall 22 are arranged obliquely, which helps to improve the heat dissipation conditions of the photovoltaic panel 100. The increased space for air flow helps to dissipate heat, thereby reducing the performance degradation caused by heat accumulation, which is beneficial to protecting the electrical equipment in the packaging slot 20.

[0042] In some embodiments, the integrated packaging structure of the border junction box of the embodiment of the present invention also includes a first reflector 41 and a second reflector 42, the first reflector 41 is connected to the first side wall 21 and is located on the side of the first side wall 21 away from the second side wall 22, the second reflector 42 is connected to the second side wall 22 and is located on the side of the second side wall 22 away from the first side wall 21, and the first reflector 41 and the second reflector 42 are adapted to the length of the packaging body 2.

[0043] It is understandable that if Figure 5As shown, the first reflector 41 is arranged on the outer surface of the first side wall 21, and the second reflector 42 is arranged on the outer surface of the second side wall 22. The main function of the reflector is to reflect light, and reflect the light irradiated on the first side wall 21 and the second side wall 22 back to the photovoltaic panel 100, thereby improving the utilization rate of light energy and increasing the power generation efficiency of the photovoltaic panel 100. In addition, by adding the reflector, the photovoltaic panel 100 can also show better performance under low light conditions, especially in the morning and evening when the light is weak.

[0044] Preferably, the first reflector 41 is integrally formed with the first side wall 21, and the second reflector 42 is integrally formed with the second side wall 22. It is understandable that the first side wall 21 and the second side wall 22 can be made of a material with a good reflective effect, or the outer wall surfaces of the first side wall 21 and the second side wall 22 can be coated with a reflective coating to ensure the reflective effect.

[0045] In some embodiments, the packaging frame 1 includes a first protrusion 11 and a second protrusion 12, the first protrusion 11 and the second protrusion 12 extend in a direction toward the photovoltaic panel 100, and the first protrusion 11 and the second protrusion 12 are in a height direction (such as Figure 1 The first protrusions 11 and the second protrusions 12 are arranged at intervals in the up-down direction in the middle, and define an installation area, and part of the photovoltaic panel 100 is placed in the installation area.

[0046] Specifically, Figure 1-Figure 4 As shown, the first protrusion 11 and the second protrusion 12 are located on the inner side of the packaging frame 1, and the first protrusion 11 and the second protrusion 12 are spaced apart in the up and down directions so that the edge of the photovoltaic panel 100 can be placed in the installation area, and the first protrusion 11 and the second protrusion 12 play the role of fixing the photovoltaic panel 100.

[0047] It is understandable that the structure of the first protrusion 11 and the second protrusion 12 can not only enhance the fixing effect of the frame on the photovoltaic panel 100, prevent the photovoltaic panel 100 from shifting during transportation or installation, thereby improving the stability of the overall structure. In addition, the first protrusion 11 and the second protrusion 12 help to disperse the force applied to the frame, optimize the mechanical properties of the frame, and reduce the risk of damage caused by external forces. It can also provide guidance and positioning for the installation of the photovoltaic panel 100, making the installation process simpler and faster.

[0048] In some embodiments, the packaging frame 1 further includes an extension portion 13 , the extension direction of the extension portion 13 is consistent with the height direction of the packaging frame, and the extension portion 13 is arranged adjacent to the packaging body 2 , and the packaging body 2 and the extension portion 13 are detachably connected.

[0049] Specifically, Figure 1-Figure 4As shown, the extension 13 is located above the first protrusion 11 and the second protrusion 12, and the extension 13 extends upward to provide installation space for the package body 2. In addition, the design of the extension 13 provides additional structural flexibility for the frame, which can be adjusted and adapted according to different installation requirements. Of course, the extension 13 can be designed to have different lengths or shapes to adapt to photovoltaic panels 100 of different sizes, thereby increasing the adaptability of the assembly.

[0050] In some embodiments, the package body 2 includes a connecting portion 23 , the connecting portion 23 is connected to any one of the first side wall 21 and the second side wall 22 , and the connecting portion 23 is connected to the extending portion 13 .

[0051] It is understandable that if Figure 1-Figure 4 As shown, the connecting portion 23 is connected to either the first side wall 21 or the second side wall 22, so that the package body 2 is subsequently connected to the extension portion 13 through the connecting portion 23. The connecting portion 23 and the extension portion 13 can be connected by bolts, clamping or plugging. Figure 1-Figure 4 As shown, threaded holes are correspondingly provided on the connecting portion 23 and the extending portion 13 , and bolts can be engaged with the threaded holes to connect the connecting portion 23 to the extending portion 13 .

[0052] Preferably, there are two connecting portions 23 , which are respectively disposed at the front and rear sides of the packaging body 2 to improve the connection strength between the packaging body 2 and the extension portion 13 .

[0053] In some embodiments, the packaging body 2 also includes a telescopic portion 24, which is connected to the cover 3 and is movable relative to the cover 3 along the width direction of the photovoltaic panel 100. The telescopic portion 24 has an installation groove 241, and the notch of the installation groove 241 is located at one end of the telescopic portion 24 away from the packaging body 2.

[0054] Specifically, Figure 1-Figure 4 As shown, the telescopic portion 24 is located above the cover 3, and the telescopic portion 24 can move in the left and right direction to adjust the distance between the telescopic portion 24 and the cover 3. The mounting groove 241 is used to place the male and female connectors connected to the diode, and the male and female connectors can be placed in the mounting groove 241 to prevent the male and female connectors from being hardened by the external environment.

[0055] That is, the telescopic portion 24 can optimize the use of the packaging space, provide more space for other components (such as circuit elements, diodes, etc.), or reduce the overall packaging volume. The design of the mounting groove 241 may be used to fix and protect internal components, such as diodes, etc., to avoid damage during transportation or installation.

[0056] It should be noted that a slide rail and slideway structure can be used between the telescopic part 24 and the cover 3, or they can be detachably connected with the help of bolts, that is, by loosening the connecting bolts, the telescopic part 24 can be moved in the left and right directions relative to the cover 3, and by tightening the connecting bolts, the telescopic part 24 is fixedly connected to the cover 3.

[0057] In some embodiments, the frame junction box integrated packaging structure of the embodiment of the present invention further includes a filling piece, and the filling piece is used to fill the packaging groove 20.

[0058] It is understandable that the filling piece filled in the packaging groove 20 can effectively seal the gap between the photovoltaic panel 100 and the packaging frame 1, prevent moisture, dust and other pollutants from entering, and improve the weather resistance and reliability of the component. Preferably, the filling piece can be a potting glue.

[0059] That is, after curing, the potting glue can fix the photovoltaic panel 100 and the internal electronic components to prevent them from shifting during transportation or use, thereby protecting the components from mechanical damage. In addition, the potting glue has a certain elasticity and can absorb impact force to a certain extent, playing a buffering and protective role for the photovoltaic panel 100. The potting glue usually has good insulation properties and can effectively prevent short circuits between electrical components.

[0060] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A frame junction box integrated packaging structure, characterized in that: include: A packaging frame, wherein the packaging frame is mounted on the photovoltaic panel along the circumference of the photovoltaic panel; A packaging body, wherein the packaging body is connected to the packaging frame, the extension direction of the packaging body is consistent with the width direction of the photovoltaic panel, the packaging body has a packaging groove, the extension direction of the packaging groove is consistent with the extension direction of the packaging body, and the opening of the packaging groove faces away from the photovoltaic panel. The packaging groove is used to install a diode. In the thickness direction of the photovoltaic panel, the packaging body is overlapped with the bus bar of the photovoltaic module and is located above the bus bar; The sealing cover is connected to the packaging body, at least a portion of the sealing cover is placed in the packaging groove, and the sealing cover is adapted to the notch of the packaging groove to seal the packaging groove.

2. The frame junction box integrated packaging structure according to claim 1, characterized in that: The packaging body includes a first side wall and a second side wall, the first side wall and the second side wall are relatively arranged on both sides of the cover along the width direction of the photovoltaic panel, and at least one of the first side wall and the second side wall is inclined relative to the photovoltaic panel.

3. The frame junction box integrated packaging structure according to claim 2, characterized in that: The width of the package body gradually decreases along a direction from the photovoltaic panel to the package body.

4. The frame junction box integrated packaging structure according to claim 3, characterized in that: It also includes a first reflector and a second reflector, the first reflector is connected to the first side wall and is located on the side of the first side wall away from the second side wall, the second reflector is connected to the second side wall and is located on the side of the second side wall away from the first side wall, and the first reflector and the second reflector are adapted to the length of the packaging body.

5. The frame junction box integrated packaging structure according to claim 4, characterized in that: The first reflective element is integrally formed with the first side wall, and the second reflective element is integrally formed with the second side wall.

6. The frame junction box integrated packaging structure according to any one of claims 2 to 5, characterized in that: The packaging frame includes a first protrusion and a second protrusion, the first protrusion and the second protrusion extend in a direction toward the photovoltaic panel, and the first protrusion and the second protrusion are arranged at intervals in a height direction of the packaging frame, the first protrusion and the second protrusion define an installation area, and a portion of the photovoltaic panel is placed in the installation area.

7. The frame junction box integrated packaging structure according to claim 6, characterized in that: The packaging frame also includes an extension portion, the extension direction of the extension portion is consistent with the height direction of the packaging frame, and the extension portion is arranged adjacent to the packaging body, and the packaging body is detachably connected to the extension portion.

8. The frame junction box integrated packaging structure according to claim 7, characterized in that: The package body includes a connection portion connected to any one of the first side wall and the second side wall, and the connection portion is connected to the extension portion.

9. The frame junction box integrated packaging structure according to claim 8, characterized in that: The packaging body also includes a telescopic part, which is connected to the cover and movable relative to the cover along the width direction of the photovoltaic panel. The telescopic part has a mounting groove, and the notch of the mounting groove is located at one end of the telescopic part away from the packaging body.

10. The frame junction box integrated packaging structure according to claim 9, characterized in that: A filling piece is also included, and the filling piece is used to fill the packaging groove.

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