Solar cell frame and photovoltaic module
By setting a pad on the frame of the solar cell frame and designing a hanging structure, the problem of easy cracking of the frame connection hole is solved, and a more stable connection and anti-cracking effect are achieved.
Patent Information
- Application Number
- CN202422634149.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The frame of the existing solar cell frame is prone to cracking at the connection hole position, causing material damage.
A pad is set on the frame of the solar cell frame, and hanging structures are designed on the frame and the pad respectively, so that the pad and the frame are hung together, and force is transmitted through the pad, which reduces stress concentration and prevents the frame from cracking.
The design of the pad reduces stress concentration at the frame connection holes, improves assembly efficiency, and effectively prevents the frame from cracking at the connection holes.
Smart Images
Figure CN223402427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic power generation, and specifically provides a solar cell frame and a photovoltaic component. Background Art
[0002] With the increasing shortage of global energy, the use of solar energy has received more and more attention. The application area of solar photovoltaic modules is becoming wider and wider, involving multiple industries and fields.
[0003] The photovoltaic module includes a solar cell frame and a solar panel mounted on the solar cell frame. The solar cell frame mainly includes a frame, which is used to protect the solar panel and is also used to connect to the photovoltaic bracket. The frame is generally fixed to the crossbeam of the photovoltaic bracket by fasteners such as bolts.
[0004] Composite materials are now widely used in photovoltaic module frames. These materials, primarily composed of glass fiber and resin, have a longitudinal tensile strength of approximately 800 MPa. However, their transverse tensile strength is only around 40 MPa, resulting in significant differences in mechanical properties between the two directions. Due to these mechanical properties, when subjected to significant transverse forces, the material can tear longitudinally. The frames are equipped with attachment holes for fasteners such as bolts, where stress concentration occurs, which can easily lead to cracking.
[0005] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content
[0006] The utility model aims to solve the above technical problem, that is, to solve the problem that the connection holes on the frame of the existing solar cell frame are prone to cracking.
[0007] In a first aspect, the utility model provides a solar cell frame, which includes a frame and a pad, wherein the frame includes a frame body and a plate-shaped connecting portion arranged on the frame body, the plate-shaped connecting portion is provided with a first connecting hole for installing a fastener, a portion of the pad is fitted with the plate-shaped connecting portion and a second connecting hole is provided at a position corresponding to the first connecting hole.
[0008] In the preferred technical solution of the above solar cell frame, a first hanging structure is provided on the frame body, and a second hanging structure is provided on the pad. The first hanging structure cooperates with the second hanging structure to hang the pad on the frame body.
[0009] In the preferred technical solution of the above solar cell frame, the first hanging structure is a notch, and the second hanging structure is a hook, and the hook is adapted to the notch.
[0010] In the preferred technical solution of the above-mentioned solar cell frame, the pad includes a first plate-shaped body and a second plate-shaped body, the second hanging structure is arranged at the top of the first plate-shaped body or near the top of the first plate-shaped body, the bottom of the first plate-shaped body is fixedly connected to or integrally arranged with the second plate-shaped body, the second plate-shaped body is fitted with the plate-shaped connecting portion, and the second connecting hole is arranged on the second plate-shaped body.
[0011] In a preferred technical solution of the above solar cell frame, the first plate-shaped body and the second plate-shaped body are arranged perpendicularly.
[0012] In the preferred technical solution of the above solar cell frame, the first plate-shaped body is in contact with the side wall of the frame body.
[0013] In the preferred technical solution of the above solar cell frame, the plate-shaped connecting portion extends from the inner side wall of the frame body toward the inner side of the solar cell frame, and the first plate-shaped body is in contact with the inner side wall of the frame body.
[0014] In the preferred technical solution of the above solar cell frame, the thickness of the second plate-shaped body is 1.0 mm to 3.0 mm.
[0015] In the preferred technical solution of the above solar cell frame, the thickness of the plate-shaped connecting portion is 2.0 mm to 3.0 mm; and / or
[0016] The width of the plate-shaped connecting portion is 15 mm to 25 mm.
[0017] In a second aspect, the present invention further provides a photovoltaic assembly comprising the above-mentioned solar cell frame.
[0018] When adopting the above-mentioned technical solution, the solar cell frame of the utility model includes not only a frame but also a pad. By installing the pad at the first connection hole of the frame, the stress concentration at the position of the first connection hole can be reduced, which is beneficial to prevent the frame from cracking at the first connection hole.
[0019] Furthermore, the utility model respectively arranges a first hanging structure and a second hanging structure on the frame body and the pad, and the pad is hung on the frame body through the cooperation of the first hanging structure and the second hanging structure. On the one hand, it is easy to assemble and is beneficial to improve the assembly efficiency. On the other hand, the force can be transmitted to the frame body through the pad, which is more conducive to preventing the frame from cracking at the first connecting hole.
[0020] Furthermore, the utility model is more conducive to the transmission of force and makes the connection between the pad and the frame more stable by arranging the first plate-shaped body and the second plate-shaped body of the pad vertically and the first plate-shaped body and the second plate-shaped body respectively fitting with the side wall and the plate-shaped connecting part of the frame body. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
[0022] Figure 1 This is a schematic diagram of the assembly of the frame, pad and beam of the utility model Figure 1 ;
[0023] Figure 2 This is a schematic diagram of the assembly of the frame, pad and beam of the utility model Figure 2 .
[0024] List of reference numerals:
[0025] 1. Frame body; 11. Plate-shaped connecting portion; 12. Notch; 13. Card slot;
[0026] 2. Pad; 21. First plate-shaped body; 22. Second plate-shaped body; 211. Hook;
[0027] 31. Bolt; 32. Nut;
[0028] 4. Beam;
[0029] 5. Solar panels. DETAILED DESCRIPTION
[0030] The preferred embodiments of the present invention are 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 invention and are not intended to limit the scope of protection of the present invention.
[0031] It should be noted that in the description of this utility model, terms such as "upper," "lower," "top," "bottom," "left," and "right" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "installed" should be understood in a broad sense, for example, to refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0033] Specifically, the utility model provides a photovoltaic assembly. The photovoltaic assembly of the utility model includes a solar cell frame. The solar cell frame includes a frame. The frame can protect the solar cell panels installed on the solar cell frame.
[0034] The number of frames is generally four, and the four frames are connected end to end to form a square or rectangular frame structure. Each frame is provided with a card slot 13 (see Figure 2 ), the four edges of the solar panel 5 are inserted into the corresponding slots 13, and the four frames surround the solar panel 5 to prevent damage to the edges of the solar panel 5. During assembly, the frame is fixedly connected to the photovoltaic bracket, generally using fasteners such as bolts or screws to fix the frame to the beam on the photovoltaic bracket.
[0035] As can be seen from the background technology, existing frames are generally made of composite materials. Due to the mechanical properties of composite materials, the longitudinal tensile strength and transverse tensile strength of the frame are greatly different, which makes the frame prone to cracking at the location where fasteners are installed.
[0036] In order to solve the problem of easy cracking of the frame, such as Figure 1 and Figure 2 As shown, the solar cell frame of the present invention includes a pad 2 in addition to a frame, wherein the frame includes a frame body 1 and a plate-like connecting portion 11 arranged on the frame body 1, and the plate-like connecting portion 11 is provided with a first connecting hole (not shown in the figure) for installing a fastener (bolt or screw, etc.), a part of the pad 2 is fitted with the plate-like connecting portion 11, and the pad 2 is provided with a second connecting hole (not shown in the figure) at a position corresponding to the first connecting hole.
[0037] By installing a backing plate at the first connection hole of the frame, stress concentration at the first connection hole can be reduced, thereby facilitating prevention of cracking of the frame at the first connection hole.
[0038] For example, Figure 1 and Figure 2As shown, the fasteners include bolts 31 and nuts 32. The upper part of the frame body 1 is provided with a slot 13 for installing the solar panel 5. The plate-shaped connecting part 11 is provided at the lower part of the frame body 1. The lower surface of the plate-shaped connecting part 11 is flush with the bottom end face of the frame body 1, so that the frame body 1 and the plate-shaped connecting part 11 can both fit with the beam 4 of the photovoltaic bracket. The pad 2 is located above the plate-shaped connecting part 11, and a part of the pad 2 fits with the upper surface of the plate-shaped connecting part 11. During installation, the bottom end of the bolt 31 passes through the second connecting hole on the pad 2 and the first connecting hole on the plate-shaped connecting part 11 from top to bottom, and is inserted into the beam 4 of the photovoltaic bracket located below the frame, and then is screwed with the nut 32. The top end face of the nut 32 abuts against the beam 4 to fix the frame to the beam 4.
[0039] It should be noted that, in actual applications, those skilled in the art may also install the pad 2 under the plate-like connecting portion 11 so that a portion of the pad 2 is in contact with the lower surface of the plate-like connecting portion 11. In addition, during installation, the bolts 31 may also be installed from bottom to top, and so on. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be limited within the scope of protection of the present invention.
[0040] In addition, it should be noted that, in actual application, the plate-shaped connecting portion 11 can be provided along the length direction of the frame body 1, or the plate-shaped connecting portion 11 can be provided only at the position connected to the crossbeam 4, etc. Such flexible adjustment and change does not deviate from the principle and scope of the present invention and should be limited within the scope of protection of the present invention. Of course, the present invention preferably provides the plate-shaped connecting portion 11 along the length direction of the frame body 1, that is, the length of the plate-shaped connecting portion 11 is the same as the length of the frame body 1.
[0041] Preferably, if Figure 1 and Figure 2 As shown, the plate-shaped connecting portion 11 of the frame of the present invention extends from the inner side wall of the frame body 1 toward the inner side of the solar cell frame.
[0042] For example, Figure 2 As shown, the side wall located on the right side of the frame body 1 is its inner wall, and the plate-shaped connecting portion 11 extends horizontally to the right from the bottom of the inner wall. The inner wall of the frame body 1 is vertically arranged, that is, the plate-shaped connecting portion 11 is perpendicular to the inner wall of the frame body 1.
[0043] It should be noted that, in actual applications, those skilled in the art may also extend the plate-shaped connecting portion 11 from the outer side wall of the frame body 1 toward the outer side of the solar cell frame. Of course, the present invention preferably extends the plate-shaped connecting portion 11 from the inner side wall of the frame body 1 toward the inner side of the solar cell frame, which can reduce the volume of the solar cell frame.
[0044] Preferably, if Figure 1 and Figure 2 As shown, the thickness of the plate-shaped connecting portion 11 of the frame of the present invention is 2.0 mm to 3.0 mm.
[0045] For example, those skilled in the art may set the thickness of the plate-shaped connecting portion 11 to 2.0 mm, 2.2 mm, 2.5 mm, 2.8 mm, or 3.0 mm, etc.
[0046] Preferably, if Figure 1 and Figure 2 As shown, the width of the plate-shaped connecting portion 11 of the frame of the present invention is 15 mm to 25 mm.
[0047] For example, those skilled in the art may set the width of the plate-shaped connecting portion 11 to 15 mm, 18 mm, 20 mm, 22 mm, or 25 mm, etc.
[0048] Preferably, if Figure 1 and Figure 2 As shown, the frame body 1 of the present invention is provided with a first hanging structure, and the pad 2 is provided with a second hanging structure. The first hanging structure cooperates with the second hanging structure to hang the pad 2 on the frame body 1.
[0049] By respectively arranging a first hanging structure and a second hanging structure on the frame body 1 and the pad 2, the pad 2 is hung on the frame body 1 through the cooperation of the first hanging structure and the second hanging structure. On the one hand, it is easy to assemble, which is beneficial to improve the assembly efficiency. On the other hand, the force can be transmitted to the frame body 1 through the pad 2, which is more conducive to preventing the frame from cracking at the first connecting hole.
[0050] It should be noted that the present invention does not limit the specific structural forms of the first hanging structure and the second hanging structure. For example, the first hanging structure and the second hanging structure can be set as a structure in which the opening cooperates with the hook, or as a structure in which the notch cooperates with the bent hook, etc. Such adjustments and changes to the specific structural forms of the first hanging structure and the second hanging structure do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
[0051] Preferably, if Figure 1 and Figure 2 As shown, the first hanging structure is a notch 12 formed on the frame body 1 , and the second hanging structure is a hook 211 provided on the backing plate 2 , and the hook 211 is adapted to the notch 12 .
[0052] For example, Figure 2As shown, the slot 12 is formed on the inner wall of the frame body 1 and is arranged near the top of the inner wall. The slot 12 faces the upper right. The slot 12 is strip-shaped and extends along the length direction of the frame body 1. The hook 211 is arranged on the top of the pad 2. The top of the pad 2 is bent outward to form the hook 211. The hook 211 engages with the slot 12, thereby hanging the pad 2 on the frame body 1.
[0053] Preferably, if Figure 1 and Figure 2 As shown, the pad 2 of the present invention includes a first plate-like body 21 and a second plate-like body 22, the second hanging structure is arranged on the top of the first plate-like body 21, the bottom of the first plate-like body 21 is fixedly connected to or integrally arranged with the second plate-like body 22, the second plate-like body 22 is fitted with the plate-like connecting part 11, and the second connecting hole is arranged on the second plate-like body 22.
[0054] For example, Figure 2 As shown, the pad 2 is composed of a first plate-like body 21 and a second plate-like body 22. The first plate-like body 21 and the second plate-like body 22 are arranged integrally. The top of the first plate-like body 21 is bent outward to form a hook 211. The outward bending angle is greater than 90°, preferably set to 100° to 150°. The bottom of the first plate-like body 21 is connected to the left end of the second plate-like body 22, and the right end of the second plate-like body 22 is basically aligned with the edge of the plate-like connecting part 11. The second plate-like body 22 is located above the plate-like connecting part 11, and the lower surface of the second plate-like body 22 is in contact with the upper surface of the plate-like connecting part 11. A second connecting hole is provided on the second plate-like body 22, and the second connecting hole is coaxial with the first connecting hole on the plate-like connecting part 11. The bottom end of the bolt 31 passes through the second plate-like body 22 and the plate-like connecting part 11 and is fixedly connected to the crossbeam 4.
[0055] It should be noted that the second hanging structure does not have to be arranged at the top of the first plate-shaped body 21. The second hanging structure can also be arranged at a position close to the top of the first plate-shaped body 21, that is, slightly below the top of the first plate-shaped body 21.
[0056] In addition, it should be noted that the present invention does not limit the number of the first connection hole and the second connection hole. The number of the first connection hole and the second connection hole can be set to one, or can be set to multiple, such as two or three.
[0057] Preferably, if Figure 1 and Figure 2 As shown, the first plate-shaped body 21 and the second plate-shaped body 22 of the pad 2 of the present invention are arranged vertically.
[0058] For example, Figure 1 and Figure 2As shown, the first plate-shaped body 21 and the second plate-shaped body 22 are vertically arranged, and the first plate-shaped body 21 is in contact with the side wall of the frame body 1 , specifically, in contact with the inner wall of the frame body 1 .
[0059] Preferably, the thickness of the second plate-shaped body 22 of the pad 2 of the present invention is 1.0 mm to 3.0 mm.
[0060] For example, those skilled in the art can set the thickness of the second plate-shaped body 22 of the backing plate 2 to 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 2.8mm or 3.0mm, etc. The thickness of the first plate-shaped body 21 of the backing plate 2 is preferably the same as the thickness of the second plate-shaped body 22.
[0061] The width of the second plate-shaped body 22 of the backing plate 2 is preferably the same as the width of the plate-shaped connecting portion 11 of the frame.
[0062] Those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of the present invention and to form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
[0063] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.
Claims
1. A solar cell frame, characterized in that: The solar cell frame includes a frame and a pad, the frame includes a frame body and a plate-shaped connecting portion arranged on the frame body, the plate-shaped connecting portion is provided with a first connecting hole for installing a fastener, a portion of the pad is fitted with the plate-shaped connecting portion and a second connecting hole is provided at a position corresponding to the first connecting hole.
2. The solar cell frame according to claim 1, characterized in that: The frame body is provided with a first hanging structure, and the pad is provided with a second hanging structure. The first hanging structure cooperates with the second hanging structure to hang the pad on the frame body.
3. The solar cell frame according to claim 2, characterized in that: The first hanging structure is a notch, and the second hanging structure is a hook, and the hook is adapted to the notch.
4. The solar cell frame according to claim 2, characterized in that: The pad includes a first plate-shaped body and a second plate-shaped body, the second hanging structure is arranged at the top of the first plate-shaped body or near the top of the first plate-shaped body, the bottom of the first plate-shaped body is fixedly connected to or integrally arranged with the second plate-shaped body, the second plate-shaped body is fitted with the plate-shaped connecting portion, and the second connecting hole is arranged on the second plate-shaped body.
5. The solar cell frame according to claim 4, characterized in that: The first plate-shaped body and the second plate-shaped body are arranged perpendicularly.
6. The solar cell frame according to claim 5, characterized in that: The first plate-shaped body is in contact with the side wall of the frame body.
7. The solar cell frame according to claim 6, characterized in that: The plate-shaped connecting portion extends from the inner side wall of the frame body toward the inner side of the solar cell frame, and the first plate-shaped body is in contact with the inner side wall of the frame body.
8. The solar cell frame according to claim 4, characterized in that: The second plate-shaped body has a thickness of 1.0 mm to 3.0 mm.
9. The solar cell frame according to any one of claims 1 to 8, characterized in that: The thickness of the plate-shaped connecting portion is 2.0 mm to 3.0 mm; and / or The width of the plate-shaped connecting portion is 15 mm to 25 mm.
10. A photovoltaic module, characterized in that: A solar cell frame comprising the solar cell frame according to any one of claims 1 to 9.