Anti-twisting structural member for photovoltaic frame and photovoltaic module

Abstract

The utility model relates to the technical field of new energy, and discloses an anti-twisting structural member for a photovoltaic frame and a photovoltaic assembly. The photovoltaic frame comprises a first mounting cavity for mounting an external corner connector, and a mounting opening is formed in one side of the first mounting cavity; the anti-twisting structural member is mounted at the mounting opening of the first mounting cavity, so that a closed cavity is defined by the first mounting cavity and the anti-twisting structural member; the anti-twisting structural part comprises an upper attaching wall, a supporting wall and a lower attaching wall. The upper attaching wall is connected with the upper end part of the supporting wall, so that the upper attaching wall is attached to the surface of the top wall in the first mounting cavity; the lower end of the supporting wall is connected to the lower attaching wall, and the lower attaching wall is attached to the upper surface of the bottom wall of the first mounting cavity. According to the anti-twisting structural member, the bending resistance and twisting resistance of the open type photovoltaic frame can be enhanced, the structural reliability of the photovoltaic module under the limit wind load is improved, and the anti-twisting structural member is simple and stable in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to a torsion-resistant structure member for a photovoltaic frame and a photovoltaic module. Background Art

[0002] Existing photovoltaic steel frames are mainly divided into two categories: open steel frames and closed steel frames. Among them, as shown in a steel frame bar for a photovoltaic frame in CN217563598U, the second installation cavity of the open steel frame is of an open structure, and the second installation cavity of this open structure is prone to force deformation and bending, and it is difficult to meet the wind load resistance requirements of the photovoltaic module under extreme wind loads, affecting the use of the photovoltaic module. Therefore, people have begun to use closed steel frames.

[0003] And as shown in a frame profile in CN220527971U, the closed steel frame is similar in structure to the traditional mainstream aluminum frame. Both are formed by bending double-layer alloy steel in the first installation groove of the frame and the bottom of the frame, and a hollow cavity is formed in the main frame of the frame through the alloy steel; this closed steel frame has good structural strength and is not easily deformed, which can improve the wind load resistance of the photovoltaic module. However, there is a risk of delamination at the double-bending part of this closed steel frame, which will greatly affect the structural stability of the closed steel frame; moreover, this closed steel frame has a complex structure and uses more materials, which will greatly increase the material cost and production cost of the frame, and will also cause the frame to be too heavy, which is not conducive to transportation and handling. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a torsion-resistant structure member for a photovoltaic frame and a photovoltaic module.

[0005] Based on this, the utility model discloses a torsion-resistant structure member for a photovoltaic frame. The photovoltaic frame includes a first installation cavity for installing an external corner code, and one side of the first installation cavity is provided with an installation opening; the torsion-resistant structure member is installed at the installation opening of the first installation cavity so that the first installation cavity and the torsion-resistant structure member jointly enclose a closed cavity.

[0006] The torsion-resistant structure member includes an upper fitting wall, a support wall and a lower fitting wall; the upper fitting wall is connected to the upper end of the support wall so that the upper fitting wall is attached to the top wall surface in the first installation cavity; the lower end of the support wall is connected to the lower fitting wall, and the lower fitting wall is attached to the upper surface of the bottom wall of the first installation cavity.

[0007] Preferably, the torsion-resistant structure member is an integral structure; the torsion-resistant structure member is a profile formed by an extrusion process or is made by bending a plate.

[0008] Preferably, the plate of the anti-twisting and wrenching structure member includes a metal main body and a corrosion-resistant layer wrapped around the outer surface of the metal main body.

[0009] More preferably, the metal main body is a steel alloy main body or an aluminum alloy main body.

[0010] More preferably, the photovoltaic frame is a steel frame, and the metal main body is a steel alloy main body; the thickness of the metal main body is 0.1-5 mm.

[0011] Preferably, the upper end of the support wall is connected to the right side of the upper fitting wall, and the lower end of the support wall is connected to the left side of the lower fitting wall, and the right side of the lower fitting wall is attached to the upper surface of the bottom wall of the first installation cavity;

[0012] Alternatively, the upper end of the support wall is connected to the right side of the upper fitting wall, and the lower end of the support wall is connected to the middle of the lower fitting wall, and reinforcing sections for attaching to the upper surface of the bottom wall of the first installation cavity are provided on both the left and right sides of the lower fitting wall;

[0013] Alternatively, the upper end of the support wall is connected to the right side of the upper fitting wall, and the lower end of the support wall is connected to the right side of the lower fitting wall, and the left side of the lower fitting wall is attached to the upper surface of the bottom wall of the first installation cavity.

[0014] Preferably, the installation opening is located on the right side of the first installation cavity, a reinforcing groove extending upward is provided at the left top inside the first installation cavity, and an arc-shaped extension section that is upwardly and fittingly attached to the reinforcing groove is connected to the left side of the upper fitting wall.

[0015] Preferably, the support wall is a vertically arranged "|" shaped structure, and the support wall is arranged parallel to the side wall of the first installation cavity.

[0016] Preferably, the anti-twisting and wrenching structure member is welded at the installation opening of the first installation cavity.

[0017] The present utility model also discloses a photovoltaic module, including a photovoltaic frame and a photovoltaic laminate; the photovoltaic frame further includes a second installation cavity located above the first installation cavity for installing the side of the photovoltaic laminate; the photovoltaic module further includes an anti-twisting and wrenching structure member for a photovoltaic frame as described above in the present utility model content, and the anti-twisting and wrenching structure member is installed at the installation opening of the first installation cavity.

[0018] Compared with the prior art, the present utility model at least includes the following beneficial effects:

[0019] Based on the existing open - type photovoltaic frame (such as a steel frame), the anti - torsion structure member is placed into the photovoltaic frame from the installation opening position. The lower fitting wall of the anti - torsion structure member is fitted to the upper surface of the bottom wall of the first installation cavity, and its upper fitting wall is fitted to the surface of the top wall in the first installation cavity. Its support wall connects the lower fitting wall and the upper fitting wall. Thus, the first installation cavity of the photovoltaic frame and the anti - torsion structure member jointly enclose a closed cavity, greatly enhancing the anti - bending and anti - torsion capabilities of the open - type photovoltaic frame, solving the problem that the open - type photovoltaic frame is prone to deformation under force in the process of production. Therefore, in practical applications, it can enhance the overall wind - load resistance of the photovoltaic module, effectively avoid the risk of bending of the photovoltaic module in application, and improve the structural reliability of the photovoltaic module under extreme wind loads. Moreover, according to the actual needs of the open - type photovoltaic frame, the anti - torsion structure member with specific dimensions can be flexibly matched. The anti - torsion structure member has a simple structure, good structural stability, less material used, light weight, and low cost, which is beneficial to transportation and handling. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the cross - section of a photovoltaic module in this embodiment.

[0021] Figure 2 is Figure 1 a schematic structural diagram of the cross - section of the anti - torsion structure member in

[0022] Figure 3 It is a schematic structural diagram of the cross - section of the plate used for the anti - torsion structure member.

[0023] Figure 4 It is a schematic structural diagram of the cross - section of another photovoltaic module in this embodiment after omitting the photovoltaic laminating member.

[0024] Figure 5 is Figure 4 a schematic structural diagram of the cross - section of the anti - torsion structure member in

[0025] Figure 6 It is a schematic structural diagram of the cross - section of another photovoltaic module in this embodiment after omitting the photovoltaic laminating member.

[0026] Figure 7 is Figure 6 a schematic structural diagram of the cross - section of the anti - torsion structure member in

[0027] Explanation of the Reference Numerals in the Drawings: Photovoltaic frame 1; First installation cavity 11; Top wall 111; Side wall 112; Bottom wall 113; Reinforcement groove 114; Installation opening 115; Second installation cavity 12;

[0028] Torsion-resistant structure member 2; metal main body 21; corrosion-resistant layer 22; upper fitting wall 23; arc extension section 231; support wall 24; lower fitting wall 25; strengthening section 251;

[0029] Photovoltaic laminate 3. Specific embodiments

[0030] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment

[0032] A photovoltaic module according to this embodiment is shown in Figure 1 、 4 、6, and includes a photovoltaic frame 1, a torsion-resistant structure member for the photovoltaic frame, and a photovoltaic laminate 3.

[0033] Among them, the photovoltaic frame 1 is an open-type photovoltaic frame, which includes a first installation cavity 11 for installing an external corner code and a second installation cavity 12 located above the first installation cavity 11. The second installation cavity 12 is for installing the side of the photovoltaic laminate 3. One side (such as the right side) of the first installation cavity 11 is provided with an installation opening 115.

[0034] The torsion-resistant structure member for the photovoltaic frame is installed at the installation opening 115 of the first installation cavity 11 so that the first installation cavity 11 and the torsion-resistant structure member 2 jointly enclose a closed cavity; in this way, the torsion-resistant structure member 2 can greatly enhance the bending resistance and torsion resistance of the open-type photovoltaic frame, so it can enhance the overall wind load resistance of the photovoltaic module and improve the structural reliability of the photovoltaic module under extreme wind load conditions.

[0035] Specifically, the first installation cavity 11 includes a top wall 111, a side wall 112, and a bottom wall 113 that are bent and connected end to end in sequence.

[0036] The torsion-resistant structure member 2 of this embodiment is an independent product. According to the actual installation requirements, load size, and size and shape of the photovoltaic module, the specific position and specific dimension length of the torsion-resistant structure member 2 placed in the open-type photovoltaic frame from the cross-sectional position of the side wall 112 and the bottom wall 113 can be flexibly selected to enhance the structural stability and reliability at the weak positions of the photovoltaic module; and the installation of the torsion-resistant structure member 2 is convenient and fast, and can play a role in strengthening, torsion resistance, and bending resistance for the open-type photovoltaic frame (especially for the long open-type steel frame).

[0037] A torsion-resistant structure member for a photovoltaic frame according to this embodiment is shown in Figure 1-2, 5, 7, including an upper fitting wall 23, a support wall 24 and a lower fitting wall 25. One side (such as the right side) of the upper fitting wall 23 is connected to the upper end of the support wall 24, and the other side (such as the left side) of the upper fitting wall 23 extends from the installation opening 115 to the first installation cavity 11, so that the upper fitting wall 23 is attached to the surface of the top wall 111 in the first installation cavity 11; the lower end of the support wall 24 is connected to the lower fitting wall 25, and the lower fitting wall 25 is attached to the upper surface of the bottom wall 113 of the first installation cavity 11. In this way, the open-type photovoltaic frame with the above-mentioned anti-twisting structure member 2 solves the problem that the open-type photovoltaic frame is prone to force deformation in the process production, enhances the structural stability of the open-type photovoltaic frame, and the structure of the anti-twisting structure member 2 is simple and light in weight, which can reduce the material cost, production cost and transportation cost.

[0038] To further simplify the structure of the anti-twisting structure member 2, reduce the cost, and ensure its good structural stability. The anti-twisting structure member 2 is preferably an integral structure. Specifically, the anti-twisting structure member 2 is a profile formed by an extrusion process (such as Figure 5 shown); or, the anti-twisting structure member 2 is made by bending a sheet (such as Figure 2 , 7 shown).

[0039] See Figure 3 , the sheet of the anti-twisting structure member 2 includes a metal main body 21 and a corrosion-resistant layer 22 (such as a corrosion-resistant coating) wrapped on the outer surface of the metal main body 21. The metal main body 21 can improve the mechanical properties of the anti-twisting structure member 2 and ensure that the anti-twisting structure member 2 has excellent anti-bending and anti-twisting capabilities; and adding a corrosion-resistant layer 22 (such as a corrosion-resistant coating) on the outer surface of the metal main body 21 can improve the reliability of the anti-twisting structure member 2 when used in the long-term outdoor environment.

[0040] In practical applications, the metal main body 21 can be a steel alloy main body (such as a carbon steel main body, a high-strength steel main body or a stainless steel main body), and the metal main body 21 can also be an aluminum alloy main body.

[0041] Specifically, the photovoltaic frame 1 is preferably a steel frame. Correspondingly, the metal main body 21 is preferably a steel alloy main body; moreover, the thickness of the metal main body 21 is preferably 0.1 - 5 mm (such as 0.1 mm, 1 mm, 2 mm, 3 mm, 4 mm or 5 mm).

[0042] Specifically, the anti-twisting structure member 2 is welded at the installation opening 115 of the first installation cavity 11. The anti-twisting structure member 2 is fixed at the required position of the steel frame by electric welding, which can achieve better anti-twisting and anti-bending effects, and can further enhance the overall structural stability of the anti-twisting structure member 2 and the open-type photovoltaic frame.

[0043] To further simplify the structure of the support wall 24 and reduce material and production costs, the support wall 24 is preferably a vertical "∣"-shaped structure, and the support wall 24 is arranged parallel to the side wall 112 of the first mounting cavity 11. The support wall 24 connects the upper and lower fitting walls 23 and 25, primarily serving as a connection and support function, thereby enhancing the torsional strength of the open photovoltaic frame.

[0044] Mounting opening 115 is located on the right side of first mounting cavity 11. An upwardly extending reinforcement groove 114 is located at the top left side of first mounting cavity 11. This reinforcement groove 114 is formed by bending the left side of top wall 111 upward and then connecting it to side wall 112. This reinforcement groove 114 provides mechanical reinforcement. Correspondingly, the left side of upper fitting wall 23 is connected to an upwardly bent arc-shaped extension 231 that fits within reinforcement groove 114. This enhances the structural stability of the anti-twist structure 2 when installed on the open photovoltaic frame, further improving its anti-twist and anti-bending properties.

[0045] In practice, the cross-section of the anti-twist structural member 2 can be in the shape of a "Z", "ユ", an inverted "C", or a "口". However, the anti-twist structural member with an "口" cross-section uses better materials but is more expensive. Therefore, the anti-twist structural member 2 of this embodiment preferably has a cross-section in the shape of a "Z", "ユ", or an inverted "C", as shown in Examples 1-3 below:

[0046] Example 1 of this embodiment, see Figure 1-2 The left side of the upper fitting wall 23 is attached to the surface of the top wall 111 in the first installation cavity 11, the upper end of the supporting wall 24 is connected to the right side of the upper fitting wall 23, and the lower end of the supporting wall 24 is connected to the left side of the lower fitting wall 25, and the right side of the lower fitting wall 25 is attached to the upper surface of the bottom wall 113 of the first installation cavity 11; in this way, the cross-section of the anti-twisting structural member 2 of Example 1 is "Z"-shaped.

[0047] Example 2 of this embodiment, see Figure 4-5 The left side of the upper fitting wall 23 is attached to the surface of the top wall 111 in the first installation cavity 11, the upper end of the supporting wall 24 is connected to the right side of the upper fitting wall 23, and the lower end of the supporting wall 24 is connected to the middle part of the lower fitting wall 25, and the left and right sides of the lower fitting wall 25 are provided with reinforcement sections 251 for attaching to the upper surface of the bottom wall 113 of the first installation cavity 11; in this way, the cross-section of the anti-twisting structural member 2 of Example 2 is in the shape of a "ユ".

[0048] Example 3 of this embodiment, see Figure 6-7, the left side of the upper fitting wall 23 is attached to the surface of the top wall 111 inside the first installation cavity 11. The upper end of the support wall 24 is connected to the right side of the upper fitting wall 23, and the lower end of the support wall 24 is connected to the right side of the lower fitting wall 25. The left side of the lower fitting wall 25 is attached to the upper surface of the bottom wall 113 of the first installation cavity 11. Thus, the cross-section of the anti-twisting and screwing structure member 2 in Example 3 is in an inverted "C" shape with an opening facing left.

[0049] Compared with the anti-twisting and screwing structure member 2 with an inverted "C" shaped cross-section, the anti-twisting and screwing structure member 2 with a "Z" shaped cross-section has better mechanical strength and structural stability. Moreover, compared with the anti-twisting and screwing structure member 2 with a "ユ" shaped cross-section, the anti-twisting and screwing structure member 2 with a "Z" shaped cross-section is more material-saving. Therefore, the anti-twisting and screwing structure member 2 with a "Z" shaped cross-section is more preferably selected, which can better balance low cost and high anti-bending and anti-twisting performance.

[0050] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0051] The technical solutions provided by the present invention have been introduced in detail above. Specific examples are used herein to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A torsion-resistant structural member for a photovoltaic frame, characterized in that The photovoltaic frame includes a first installation cavity for installing an external corner code, and an installation opening is provided on one side of the first installation cavity; the anti-twisting and wrenching structure member is installed at the installation opening of the first installation cavity so that the first installation cavity and the anti-twisting and wrenching structure member jointly enclose a closed cavity. The anti-twisting and wrenching structure member includes an upper fitting wall, a support wall, and a lower fitting wall; the upper fitting wall is connected to the upper end of the support wall so that the upper fitting wall is attached to the top wall surface in the first installation cavity. The lower end of the support wall is connected to the lower fitting wall, and the lower fitting wall is attached to the upper surface of the bottom wall of the first installation cavity.

2. The torsion-resistant structural member for a photovoltaic frame according to claim 1, characterized in that, The anti-twisting and wrenching structure member is an integral structure; the anti-twisting and wrenching structure member is a profile formed by an extrusion process, or is made by bending a sheet.

3. The torsion-resistant structural member for a photovoltaic frame according to claim 1 or 2, characterized in that, The sheet of the anti-twisting and wrenching structure member includes a metal main body and a corrosion-resistant layer wrapped on the outer surface of the metal main body.

4. The torsion-resistant structural member for a photovoltaic frame according to claim 3, wherein, The metal main body is a steel alloy main body or an aluminum alloy main body.

5. The torsion-resistant structural member for a photovoltaic frame according to claim 3, wherein, The photovoltaic frame is a steel frame, and the metal main body is a steel alloy main body; the thickness of the metal main body is 0.1-5 mm.

6. The torsion-resistant structural member for a photovoltaic frame according to claim 1, characterized in that, The upper end of the support wall is connected to the right side of the upper fitting wall, and the lower end of the support wall is connected to the left side of the lower fitting wall, and the right side of the lower fitting wall is attached to the upper surface of the bottom wall of the first installation cavity. Alternatively, the upper end of the support wall is connected to the right side of the upper fitting wall, and the lower end of the support wall is connected to the middle of the lower fitting wall, and reinforcing sections for attaching to the upper surface of the bottom wall of the first installation cavity are provided on both the left and right sides of the lower fitting wall. Alternatively, the upper end of the support wall is connected to the right side of the upper fitting wall, and the lower end of the support wall is connected to the right side of the lower fitting wall, and the left side of the lower fitting wall is attached to the upper surface of the bottom wall of the first installation cavity.

7. A torsion-resistant structural member for a photovoltaic frame according to claim 1, characterized in that, The installation opening is located on the right side of the first installation cavity, a reinforcing groove extending upward is provided at the left top in the first installation cavity, and an arc-shaped extension section that is upwardly and fittingly attached to the reinforcing groove is connected to the left side of the upper fitting wall.

8. A torsion-resistant structural member for a photovoltaic frame according to claim 1, characterized in that, The support wall is a vertically arranged "∣”-shaped structure, and the support wall is arranged parallel to the side wall of the first installation cavity.

9. The torsion-resistant structural member for a photovoltaic frame according to claim 1, characterized in that, The anti-twisting and wrenching structure member is welded to the installation opening of the first installation cavity.

10. A photovoltaic module, comprising a photovoltaic frame and a photovoltaic laminate, wherein the photovoltaic frame further includes a second installation cavity located above the first installation cavity for installing the side of the photovoltaic laminate; characterized in that, The photovoltaic module further includes an anti-twisting and wrenching structure member for a photovoltaic frame according to any one of claims 1-9, and the anti-twisting and wrenching structure member is installed at the installation opening of the first installation cavity.

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