High strength photovoltaic module and photovoltaic system comprising the same

Abstract

The utility model provides a kind of high-strength photovoltaic module and including its photovoltaic system, the high-strength photovoltaic module includes at least one laminated member, multiple frames and multiple corner codes, the frame is installed in the four around side edge of laminated member, it is connected between every two adjacent frame by a corner code;Every frame has first cavity and second cavity from inside to outside, the upper portion of second cavity is provided with upper recess, lower portion is provided with lower recess, and the outside of second cavity is arc surface.The utility model increases cavity, improves the inertia moment of frame, increases the strength of component whole;Buckle is additionally provided on corner code, increases pull-out capacity;The design of pressure block concave-convex point strengthens wind load capacity;Avoids component deviation under high load condition.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaics, and in particular to a high-strength photovoltaic module and a photovoltaic system including the same. Background Technology

[0002] In photovoltaic modules, the frame serves to protect and support the photovoltaic panel, while the corner bracket is used to connect two adjacent frames, increasing the connection strength and load-bearing capacity of the frame.

[0003] With the rapid development of the photovoltaic industry, the requirements for the quality and reliability of photovoltaic modules are constantly increasing. As a key component for frame connection, the performance and installation process of corner brackets are also receiving more and more attention.

[0004] With the increasing global demand for clean energy, photovoltaic power generation has received widespread attention as a sustainable energy solution.

[0005] However, polar regions have unique environmental conditions, such as extremely cold climates, strong winds, and vast areas of ice and snow cover, which place higher demands on the performance of photovoltaic modules and their frames. Building photovoltaic power plants in polar regions can fully utilize the abundant local solar energy resources to provide power support for polar research stations and other facilities.

[0006] Currently, existing borders have the following problems:

[0007] 1. Insufficient load-bearing capacity of the frame;

[0008] Second, there is insufficient pull-out force;

[0009] 3. The profile may crack or develop corner gaps;

[0010] Fourth, the entire component may shift under high load conditions.

[0011] In view of this, the inventors of this application have designed a high-strength photovoltaic module and a photovoltaic system including the same, in order to overcome the above-mentioned technical problems. Utility Model Content

[0012] The technical problem to be solved by this utility model is to overcome the defects of insufficient frame strength of photovoltaic modules in the prior art, which easily leads to profile cracking or corner gaps, and to provide a high-strength photovoltaic module and a photovoltaic system including the same.

[0013] The present invention solves the above-mentioned technical problems through the following technical solution:

[0014] A high-intensity photovoltaic module is characterized in that the high-intensity photovoltaic module includes at least one laminate, multiple frames and multiple corner brackets, the frames are installed on the four sides of the laminate, and every two adjacent frames are connected by a corner bracket.

[0015] Each of the frame frames has a first cavity and a second cavity from the inside out. The upper part of the second cavity is provided with an upper recess and the lower part is provided with a lower recess, and the outer surface of the second cavity is an arc surface.

[0016] According to one embodiment of the present invention, the two ends of the corner bracket are respectively set as openings to form an open slot.

[0017] According to one embodiment of the present invention, the end face of the groove is an inclined surface.

[0018] According to one embodiment of the present invention, the two sides of the slot extend outward to form elastic support claws.

[0019] According to one embodiment of the present invention, a limiting point is provided on the upper outer side of the elastic support claw, and a limiting hole is opened on the inner wall of the first cavity of the frame, and the limiting point is engaged with the limiting hole.

[0020] According to one embodiment of the present invention, the high-strength photovoltaic module further includes a pressing block assembly and a purlin, wherein two adjacent laminates are pressed and fixed onto the purlin by the pressing block assembly.

[0021] According to one embodiment of the present invention, the pressure block assembly includes a pressure block, a fastener, and a locking member. The fastener passes through the pressure block, and the locking member is installed on the fastener. The two sides of the pressure block are provided with a protrusion, a recess, and a contact surface connected sequentially from top to bottom. The contact surface is an arc surface.

[0022] When the pressing block presses against two adjacent laminates, the protrusions and recesses of the pressing block engage with the upper recesses of the corresponding frame.

[0023] According to one embodiment of the present invention, the contact surface is in contact with the outer surface of the second cavity of the frame.

[0024] According to one embodiment of the present utility model, the purlin is provided with two limiting parts and a slot, and the slot is located between the two limiting parts;

[0025] When the pressure block presses against two adjacent laminates, the two limiting parts respectively engage with the recesses of the corresponding frame, and the locking member is installed in the slot.

[0026] According to one embodiment of the present invention, a clearance groove is provided above the card slot, the width of the locking member is less than the length of the clearance groove, and the length of the locking member is greater than the width of the card slot.

[0027] According to one embodiment of the present invention, the upper end face of each of the limiting parts is configured as a first limiting point, a groove and a second limiting point connected in sequence, and the shape of the upper end face of the limiting part matches the shape of the recess of the frame.

[0028] According to one embodiment of the present invention, the pressure block assembly includes an upper pressure block, a lower pressure block, a fastener, and a locking member. The upper pressure block and the lower pressure block are arranged symmetrically in the upper and lower positions. The fastener passes through the upper pressure block and the lower pressure block, and the locking member is installed on the fastener.

[0029] The upper pressure block has an upper protrusion, an upper concave and an upper contact surface connected sequentially from top to bottom on both sides, and the upper contact surface is an arc surface;

[0030] The lower pressure block has a lower protrusion, a lower concave and a lower contact surface connected sequentially from bottom to top on both sides, and the lower contact surface is an arc surface;

[0031] When the upper pressing block and the lower pressing block press against two adjacent laminates, the upper protrusion and the upper concave part of the upper pressing block engage with the upper recess of the corresponding frame; the lower protrusion and the lower concave part of the lower pressing block engage with the lower recess of the corresponding frame.

[0032] According to one embodiment of the present invention, the upper contact surface and the lower contact surface are in contact with the outer surface of the second cavity of the frame.

[0033] This utility model also provides a photovoltaic system, characterized in that the photovoltaic system includes the high-intensity photovoltaic modules as described above.

[0034] The positive and progressive effects of this utility model are as follows:

[0035] The high-strength photovoltaic module and photovoltaic system including the present invention have the following advantages:

[0036] 1. Increase the cavity to improve the moment of inertia of the frame and increase the overall strength of the component;

[0037] 2. Add buckles to the corner brackets to increase the pull-out ability;

[0038] III. The design of the bumps and recesses in the ballast blocks enhances wind load resistance;

[0039] Fourth, it avoids component displacement under high load conditions. Attached Figure Description

[0040] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:

[0041] Figure 1 This is a perspective view of the high-strength photovoltaic module of this utility model.

[0042] Figure 2 This is a cross-sectional view of the internal structure of the frame in the high-strength photovoltaic module of this utility model.

[0043] Figure 3 This is a schematic diagram of the corner bracket structure in the high-strength photovoltaic module of this utility model.

[0044] Figure 4 This is the front view of the corner bracket in the high-strength photovoltaic module of this utility model.

[0045] Figure 5 This is a schematic diagram of the assembly of the frame and corner brackets in the high-strength photovoltaic module of this utility model.

[0046] Figure 6 This is a perspective view of a first embodiment of the high-strength photovoltaic module of this utility model.

[0047] Figure 7 This is a front view of one embodiment of the high-strength photovoltaic module of this utility model.

[0048] Figure 8 This is a schematic diagram showing the installation of the pressure block component, frame, and purlins in the high-strength photovoltaic module of this utility model.

[0049] Figure 9 This is a perspective view of Embodiment 2 of the high-strength photovoltaic module of this utility model.

[0050] Figure 10 This is a schematic diagram showing the installation of the pressure block component, frame, and purlins in the high-strength photovoltaic module of this utility model. Detailed Implementation

[0051] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0052] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts.

[0053] Furthermore, although the terminology used in this invention is selected from commonly known and used terms, some terms mentioned in this specification may have been selected by the applicant in his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein.

[0054] Furthermore, it is required that this utility model be understood not only through the actual terminology used, but also through the meaning implied by each term.

[0055] Example 1:

[0056] like Figures 1 to 5 As shown, this utility model discloses a high-strength photovoltaic module, which includes at least one laminate 10, multiple frames 20, and multiple corner brackets 30. The frames 20 are installed on the four sides of the laminate 10, and every two adjacent frames 20 are connected by a corner bracket 30. Each frame 20 has a first cavity 21 and a second cavity 22 from the inside to the outside. The upper part of the second cavity 22 is provided with an upper recess 23, and the lower part is provided with a lower recess 24. The outer surface 25 of the second cavity 22 is an arc surface.

[0057] Here, the addition of the second cavity 22 can strengthen the moment of inertia of the frame and improve the load-bearing capacity. The outer surface 25 is set as a rounded surface structure, which is more conducive to improving the moment of inertia and can increase the contact surface with the pressure block, improve the friction, and better fix it.

[0058] Preferably, the corner bracket 30 has openings at both ends, forming open slots 31. The end faces of the slots 31 are preferably beveled. The two sides of the slots 31 extend outward to form elastic support claws 32.

[0059] Furthermore, a limiting point 321 is provided on the upper outer side of the elastic support claw 32. A limiting hole 22 is formed on the inner wall of the first cavity 21 of the frame 20, and the limiting point 321 is engaged with the limiting hole 22.

[0060] In this embodiment, the slot 31 is designed with an inclined end face to provide the elastic support claw 32 with a certain degree of elasticity. The elastic support claw 32 has a limiting point 321 that can engage with the limiting hole 22 on the frame 20. When the corner bracket 30 begins to engage with the frame 20, the elastic support claw 32 begins to retract. When it slides to the limiting hole 22 on the frame 20, the limiting point 321 embeds into it, completing the engagement. This structure integrates with traditional connection methods, achieving dual protection. The elastic support claw 32 has a certain degree of flexibility and will not generate strong tension, thereby avoiding cracking of the frame 20 and preventing problems such as profile cracking and corner gaps.

[0061] like Figures 6 to 8As shown, the high-strength photovoltaic module also includes a pressing assembly 40 and a purlin 50, with two adjacent laminates 10 being pressed and fixed onto the purlin 50 by the pressing assembly 40.

[0062] In this embodiment, the pressure block assembly 40 preferably includes a pressure block 41, a fastener 42 (e.g., a screw), and a locking member 43 (e.g., a lock nut). The fastener 42 passes through the pressure block 41, and the locking member 43 is mounted on the fastener 42. The pressure block 41 has, from top to bottom, a series of sequentially connected protrusions 411, recesses 412, and a contact surface 413, where the contact surface 413 is preferably an arc surface.

[0063] When the pressure block 41 presses against two adjacent laminates 10, the protrusions 411 and concave parts 412 of the pressure block 41 engage with the upper recesses 23 of the corresponding frame 20. The contact surface 413 is in contact with the outer surface 25 of the second cavity 22 of the frame 20.

[0064] like Figure 8 As shown, preferably, the purlin 50 is provided with two limiting parts 51 and a slot 52, with the slot 52 located between the two limiting parts 51. When the pressing block 41 presses against two adjacent laminates 10, the two limiting parts 51 respectively engage with the lower recess 24 of the corresponding frame 20, and the locking member 43 is installed in the slot 52.

[0065] Above the card slot 52, there is also a clearance groove 53. The width of the locking member 43 is less than the length of the clearance groove 53, and the length of the locking member 43 is greater than the width of the card slot 52.

[0066] In particular, in this embodiment, the upper end face of each limiting part 51 is configured as a first limiting point 511, a groove 512 and a second limiting point 513 connected in sequence, and the shape of the upper end face of the limiting part 51 matches the shape of the lower recess 24 of the frame 20.

[0067] In addition, extended edges 54 are provided at both ends of the purlin 50 to increase the contact area between the frame C-side and the purlin 50, thereby improving the overall stability of the component. The recessed point 24 of the component frame 20 cooperates with the limiting part 51 of the purlin 50 to prevent the component from shifting under high loads. The concave and convex points of the pressure block 41 can interlock with the upper concave points of the frame 20, effectively preventing the component from falling off under wind or snow loads, and greatly improving the overall load-bearing capacity of the component.

[0068] Example 2:

[0069] like Figure 9 and Figure 10As shown, the structure of this embodiment is basically the same as that of Embodiment 1, except that: in this embodiment, the pressure block assembly 40 includes an upper pressure block 44, a lower pressure block 45, a fastener 42 (e.g., a screw), and a locking member 43 (e.g., a lock nut). The upper pressure block 44 and the lower pressure block 45 are arranged symmetrically, the fastener 42 passes through the upper pressure block 44 and the lower pressure block 45, and the locking member 43 is installed on the fastener 42.

[0070] Preferably, the upper pressing block 44 has an upper protrusion 441, an upper concave point 442, and an upper contact surface 443 connected sequentially from top to bottom on both sides, with the upper contact surface 443 being an arc surface. The lower pressing block 45 has a lower protrusion 451, a lower concave point 452, and a lower contact surface 453 connected sequentially from bottom to top on both sides, with the lower contact surface 454 being an arc surface.

[0071] When the upper pressure block 44 and the lower pressure block 45 press against two adjacent laminates 10, the upper protrusion 441 and the upper concave part 442 of the upper pressure block 44 engage with the upper recess 23 of the corresponding frame 20. The lower protrusion 451 and the lower concave part 452 of the lower pressure block 45 engage with the lower recess 24 of the corresponding frame 20.

[0072] Specifically, the upper contact surface 443 and the lower contact surface 453 are in contact with the outer surface of the second cavity 22 of the frame 20.

[0073] In this embodiment, the limiting points on the purlin 50 are removed, which can improve the flexibility of component installation. The pressure block is divided into an upper pressure block 44 and a lower pressure block 45. Both the upper pressure block 44 and the lower pressure block 45 are provided with protrusions, and the locking bolts (i.e., locking parts 43) can engage with the upper and lower recesses of the frame 20, thereby avoiding the possibility of the component falling off when subjected to high loads.

[0074] A photovoltaic system characterized in that the photovoltaic system includes high-intensity photovoltaic modules as described above.

[0075] As described above, the high-strength photovoltaic module of this invention has made the following improvements:

[0076] 1. Add a cavity to the frame, and make the cavity arc-shaped to increase the moment of inertia and improve the frame strength. Increase the load-bearing capacity of the frame to meet high load requirements.

[0077] Second, the corner brackets have elastic ends and locking points to enhance pull-out force. This overcomes the influence of the depth and position of the rivets on the frame on the pull-out force.

[0078] Third, the pressure block has raised points that match the concave points on the frame to enhance wind resistance and prevent displacement.

[0079] 4. The purlins are equipped with limiting protrusions to prevent displacement.

[0080] In summary, the high-strength photovoltaic module and photovoltaic system including the present invention have the following advantages:

[0081] 1. Increase the cavity to improve the moment of inertia of the frame and increase the overall strength of the component;

[0082] 2. Add buckles to the corner brackets to increase the pull-out ability;

[0083] III. The design of the bumps and recesses in the ballast blocks enhances wind load resistance;

[0084] Fourth, it avoids component displacement under high load conditions.

[0085] For those skilled in the art, the above disclosure of utility models is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0086] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0087] Similarly, it should be noted that, in order to simplify the description of the embodiments disclosed in this application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of this application sometimes combines multiple features into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the object of this application requires more features than those mentioned in the claims. In fact, the number of features in an embodiment is less than all the features of a single embodiment disclosed above. Some embodiments use numbers describing the number of components or attributes; it should be understood that such numbers used in the description of embodiments are modified in some examples by the modifiers "approximately," "about," or "generally."

[0088] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A high-strength photovoltaic module, characterized in that, The high-intensity photovoltaic module includes at least one laminate, multiple frames and multiple corner brackets. The frames are installed on the four sides of the laminate, and each pair of adjacent frames is connected by a corner bracket. Each of the frame frames has a first cavity and a second cavity from the inside out. The upper part of the second cavity is provided with an upper recess and the lower part is provided with a lower recess, and the outer surface of the second cavity is an arc surface.

2. The high-strength photovoltaic module as described in claim 1, characterized in that, The corner bracket has openings at both ends, forming an open slot.

3. The high-strength photovoltaic module as described in claim 2, characterized in that, The end face of the groove is an inclined surface.

4. The high-strength photovoltaic module as described in claim 2, characterized in that, The two sides of the slot extend outward to form elastic support claws.

5. The high-strength photovoltaic module as described in claim 4, characterized in that, A limiting point is provided on the upper outer side of the elastic support claw, and a limiting hole is opened on the inner wall of the first cavity of the frame, and the limiting point is engaged with the limiting hole.

6. The high-strength photovoltaic module as described in claim 1, characterized in that, The high-strength photovoltaic module also includes a pressing assembly and purlins, with two adjacent laminates being pressed and fixed onto the purlins by the pressing assembly.

7. The high-strength photovoltaic module as described in claim 6, characterized in that, The pressure block assembly includes a pressure block, a fastener, and a locking member. The fastener passes through the pressure block, and the locking member is installed on the fastener. The two sides of the pressure block are provided with a protrusion, a recess, and a contact surface connected sequentially from top to bottom. The contact surface is an arc surface. When the pressing block presses against two adjacent laminates, the protrusions and recesses of the pressing block engage with the upper recesses of the corresponding frame.

8. The high-strength photovoltaic module as described in claim 7, characterized in that, The contact surface is in contact with the outer surface of the second cavity of the frame.

9. The high-strength photovoltaic module as described in claim 7, characterized in that, The purlin is provided with two limiting parts and a slot, and the slot is located between the two limiting parts; When the pressure block presses against two adjacent laminates, the two limiting parts respectively engage with the recesses of the corresponding frame, and the locking member is installed in the slot.

10. The high-strength photovoltaic module as described in claim 9, characterized in that, A clearance groove is provided above the card slot. The width of the locking member is less than the length of the clearance groove, and the length of the locking member is greater than the width of the card slot.

11. The high-strength photovoltaic module as described in claim 9, characterized in that, The upper surface of each of the limiting parts is configured with a first limiting point, a groove and a second limiting point connected in sequence, and the shape of the upper surface of the limiting part matches the shape of the recess of the frame.

12. The high-strength photovoltaic module as described in claim 6, characterized in that, The pressure block assembly includes an upper pressure block, a lower pressure block, a fastener, and a locking element. The upper pressure block and the lower pressure block are arranged symmetrically vertically. The fastener passes through the upper pressure block and the lower pressure block, and the locking element is installed on the fastener. The upper pressure block has an upper protrusion, an upper concave and an upper contact surface connected sequentially from top to bottom on both sides, and the upper contact surface is an arc surface; The lower pressure block has a lower protrusion, a lower concave and a lower contact surface connected sequentially from bottom to top on both sides, and the lower contact surface is an arc surface; When the upper pressing block and the lower pressing block press against two adjacent laminates, the upper protrusion and the upper concave part of the upper pressing block engage with the upper recess of the corresponding frame; the lower protrusion and the lower concave part of the lower pressing block engage with the lower recess of the corresponding frame.

13. The high-strength photovoltaic module as described in claim 12, characterized in that, The upper contact surface and the lower contact surface are in contact with the outer surface of the second cavity of the frame.

14. A photovoltaic system, characterized in that, The photovoltaic system includes a high-intensity photovoltaic module as described in any one of claims 1-13.

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