Photovoltaic frame with adjustable notch width

By designing a photovoltaic frame with adjustable slot width and adopting a structure that integrates movable accommodating slot walls with dovetail slots, the problem of poor adaptability of traditional photovoltaic frame molds is solved, achieving flexible adaptation and cost reduction under different photovoltaic panel thicknesses.

CN224264915UActive Publication Date: 2026-05-19CITIC BOHAI ALUMINUM IND HLDG COMPANY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CITIC BOHAI ALUMINUM IND HLDG COMPANY
Filing Date
2025-08-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional aluminum alloy photovoltaic frame molds have poor adaptability, which means that molds need to be changed frequently when the thickness of the photovoltaic panel changes, increasing costs and inventory waste.

Method used

A photovoltaic frame with adjustable slot width was designed, which adopts a slotted frame body and a movable receiving slot wall structure. The slot width can be flexibly adjusted by the interlocking of dovetail slots and dovetail blocks, and is combined with a glue groove for fixing photovoltaic panels.

Benefits of technology

It enables one-time adaptation to different photovoltaic panel thicknesses, reducing the frequency of mold replacement and inventory, and lowering production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

A photovoltaic frame with an adjustable notch width comprises a slotted frame body and a movable accommodating groove wall, in a cross section view, the slotted frame body comprises a right vertical wall, a left vertical wall, a lower wall and an upper wall which surround and define a cavity, and the right vertical wall is provided with an overhanging wall part which extends from the upper wall to the upper side relative to the cavity; a plurality of dovetail grooves are formed in the outer surface of the upper wall side by side in the longitudinal direction at a preset distance from the overhanging wall part; the movable containing groove wall comprises a dovetail block capable of being embedded into any dovetail groove, and in the embedded state, the movable containing groove wall and the outwards-extending wall part form a containing groove with the corresponding part of the outer surface of the upper wall as the containing groove bottom. When the thicknesses of the corresponding photovoltaic panels are different, the requirements can be met at a time through flexible matching of the movable containing groove walls and the dovetail grooves, and the mold opening cost and the inventory are reduced.
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Description

Technical Field

[0001] This utility model relates to the photovoltaic field, specifically to a photovoltaic frame with adjustable slot width. Background Technology

[0002] Traditional aluminum alloy photovoltaic frames are largely similar, with the only real difference being the width of the receiving groove that contacts the photovoltaic panel. This width is related to the thickness of the photovoltaic panel. When there are several thicknesses of photovoltaic panels, more photovoltaic frame molds are needed to meet the requirements. When batch switching is required, the residual value of the molds is difficult to consume, which leads to cost waste. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a photovoltaic frame with an adjustable slot width.

[0004] According to the present invention, a photovoltaic frame with adjustable slot width is provided, comprising: a slotted frame body and a movable receiving slot wall. In a cross-sectional view, the slotted frame body includes a right vertical wall, a left vertical wall, a lower wall, and an upper wall surrounding and defining a cavity. The right vertical wall has an overhanging wall portion extending upward relative to the cavity from the upper wall. On the outer surface of the upper wall, a plurality of dovetail slots are arranged longitudinally in parallel at a predetermined distance from the overhanging wall portion. The movable receiving slot wall includes a dovetail block that can be fitted into any dovetail slot. In the fitted state, the movable receiving slot wall and the overhanging wall portion constitute a receiving slot for the corresponding portion of the outer surface of the upper wall as the receiving slot bottom.

[0005] Preferably, the movable receiving tank wall further includes a glue-containing tank, which is configured as an open structure located on the side of the movable receiving tank wall facing the outward extension.

[0006] Preferably, the right vertical wall and the left vertical wall are parallel to each other and both are perpendicular to the upper wall, and the upper wall and the lower wall are parallel to each other.

[0007] Preferably, a positioning rib is formed protruding into the cavity from the inner circumference of at least one of the right vertical wall, left vertical wall, lower wall and upper wall.

[0008] Preferably, the positioning rib extends perpendicularly to the inner circumferential surface of the wall.

[0009] Preferably, the glue container is configured as a stepped container that includes an overflow groove.

[0010] Preferably, the movable receiving tank wall has a longitudinal length corresponding to the extended wall portion.

[0011] Preferably, the movable receiving tank wall is configured in multiple segments of two or more, and generally has a longitudinal length corresponding to the extended wall portion.

[0012] Preferably, the slotted frame body is formed as an integral, longitudinally extended structure.

[0013] Preferably, the movable receiving tank wall is installed vertically to the bottom of the receiving tank to have a height corresponding to the extended wall portion.

[0014] According to the photovoltaic frame of this utility model, when there are several corresponding photovoltaic panel thicknesses, the needs can be met at once through the flexible combination of movable accommodating groove walls and dovetail grooves, reducing mold opening costs and inventory. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0016] Figure 1 A schematic cross-sectional view of a photovoltaic frame with adjustable slot width according to an embodiment of the present invention is shown. Detailed Implementation

[0017] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present invention, enabling those skilled in the art to implement and use the present invention in various environments and for various applications. Therefore, the scope of protection of the present invention is defined by the appended claims, and the exemplary embodiments are not intended, and should not be considered, a limiting description of the scope of protection of the present invention. Furthermore, for ease of description, the dimensions of the various parts shown in the drawings are not necessarily drawn to actual scale. Orientation descriptions, such as the directions or positional relationships indicated by "up," "down," "left," "right," "top," and "bottom" in the cross-section of a photovoltaic frame, are based on the orientations or positional relationships shown in the drawings and are only for the purpose of facilitating and simplifying the description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or partial constructions will be omitted where they may cause confusion or make the understanding of the present disclosure difficult to discern. Unless otherwise specifically stated, the order and numerical values ​​of the components and assembly steps described in the embodiments do not limit the scope of this invention.

[0018] <Overall Composition>

[0019] This utility model provides a photovoltaic frame with an adjustable slot width, such as... Figure 1 As shown in the cross-sectional view, it is mainly divided into two parts: the slotted frame body 10 and the movable receiving groove wall 20.

[0020] Preferably, both the slotted frame body 10 and the movable receiving groove wall 20 are formed by forward hot extrusion. The slotted frame body 10 is formed as an integral, longitudinally elongated structure, which, in a cross-sectional view, may include: a right vertical wall 11, a positioning rib 12, a cavity 13, a dovetail groove 14, a receiving groove bottom 15, a left vertical wall 16, a lower wall 17, and an upper wall 19. Correspondingly, the movable receiving groove wall 20 includes a glue-receiving groove 21 and a dovetail block 22.

[0021] The cavity 13 is defined by a right vertical wall 11, an upper wall 19, a left vertical wall 16, and a lower wall 17. Preferably, the right vertical wall 11 and the left vertical wall 16 are parallel to each other and both perpendicular to the upper wall 19. The upper wall 19 and the lower wall 17 are parallel to each other and both perpendicular to the right vertical wall 11. A positioning rib 12 may also be formed protruding into the cavity 13 from at least one of the inner circumferential surfaces of the walls, for example, from the right vertical wall 11 or the left vertical wall 16 as shown in the figure. The positioning rib 12 may extend perpendicularly to the right vertical wall 11.

[0022] The right vertical wall 11 is configured to also include a free cantilevered extension wall 18 that extends vertically upward from the upper wall 19 relative to the cavity 13. Thus, the slotted frame body 10 has a generally B-shaped cross-sectional shape.

[0023] Furthermore, on the outer surface of the upper wall 19, two or more dovetail grooves 14 are provided longitudinally in parallel at a predetermined distance from the extended wall portion 18.

[0024] Thus, the dovetail block 22 of the movable receiving groove wall 20 can be inserted as needed to fit into one of the dovetail grooves 14 of the slotted frame body 10, and together with the right vertical wall 11 (i.e., the extended wall portion 18) of the slotted frame body 10, it forms a complete receiving groove 30. At this time, the portion of the upper wall 19 corresponding to the receiving groove 30 constitutes the receiving groove bottom 15.

[0025] This allows for the construction of a photovoltaic frame with an adjustable slot width.

[0026] Preferably, the movable receiving groove wall 20 is perpendicular to the receiving groove bottom 15, and its height is not limited, but it is preferably aligned with the extended wall portion 18. The adhesive receiving groove 21 is configured as an arc-shaped concave irregular structure located on the right side of the movable receiving groove wall 20, opening towards the extended wall portion 18. When subsequently inserting the periphery of the photovoltaic panel into the receiving groove 30, the photovoltaic panel can be further secured by accommodating the installation adhesive in the adhesive receiving groove 21.

[0027] The glue-containing groove 21 and the dovetail block 22 are preferably respectively disposed on opposite ends of the movable receiving groove wall 20, but are not limited thereto. The glue-containing groove 21 may also be disposed at any position of the movable receiving groove wall 20 facing the outward extension wall 18, or may be disposed as a stepped groove to additionally form an overflow groove and optimize the adhesive effect.

[0028] <Example>

[0029] The slotted frame body 10 and the movable receiving groove wall 20 are made of aluminum alloy, specifically 6005 aluminum alloy, with a composition conforming to national standards. The aluminum alloy is produced by hot extrusion forming, and the cross-section conforms to national standards. Figure 1 The adjustable slot width photovoltaic frame, the specific mold form and extrusion process are not limited to those described below.

[0030] After extrusion, the material is cut to a fixed length of 6050 (0, +20) mm and then aged at 185-195℃ for 3-4 hours. Afterward, it undergoes sandblasting or shot blasting. Taking sandblasting as an example, the glass abrasive is 40-80 mesh, and the blasting speed is 25-35 Hz, followed by conventional anodizing.

[0031] The right vertical wall 11 has a thickness of 1.5 (±0.15) mm and a height of 45 (±0.2) mm.

[0032] The left vertical wall 16 has a thickness of 1.3 (±0.15) mm and a height of 25 (±0.2) mm.

[0033] The bottom of the receiving tank is 15 mm thick (±0.15 mm) and 35 mm wide (±0.2 mm).

[0034] The lower wall 17 has a thickness of 1.3 (±0.15) mm and a width of 35 (±0.2) mm.

[0035] The positioning rib 12 has a thickness of 1 (±0.15) mm and a height of 1.3 (±0.15) mm.

[0036] The dovetail groove 14 is trapezoidal, with a lower base of 2.2 (-0.02, +0) mm, an upper base of 1.8 (-0.02, +0) mm, and a height of 1.5 (-0.02, +0) mm.

[0037] The dovetail block 22 is trapezoidal, with a lower base of 2.2 (0, +0.02) mm, an upper base of 1.8 (0, +0.02) mm, and a height of 1.5 (0, +0.02) mm.

[0038] The movable containment tank wall 20 is cooled entirely with liquid nitrogen for 5-10 minutes. The dovetail block 22 of the movable containment tank wall 20 is then inserted into a required dovetail groove 14 of the slotted frame body 10 to achieve an interference fit.

[0039] After that, conventional deep processing (sawing, punching, punching, etc.) and splicing assembly are carried out, which will not be described in detail.

[0040] <Variation Example>

[0041] The above illustrates an example using a single movable receiving wall 20, which has a longitudinal length corresponding to the right vertical wall 11. However, it is not limited to a single continuous wall; it can also be configured as multiple segments, with an overall longitudinal length corresponding to the right vertical wall 11. Especially when the right vertical wall 11 is longitudinally longer, the segmented movable receiving wall 20 can be assembled separately from the longitudinally opposite sides of the dovetail groove 14, simplifying the assembly process.

[0042] The dovetail groove 14, which is not used during assembly, can also be used as a drainage groove.

[0043] In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified. Unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Although the present invention has been described with reference to various specific embodiments, it should be understood that modifications can be made within the spirit and scope of the described inventive concept. Therefore, it is intended that the present invention be limited to the described embodiments but will have the full scope defined by the language of the appended claims.

Claims

1. A photovoltaic frame with adjustable slot width, characterized in that, include: In a cross-sectional view, the slotted frame body (10) includes a right vertical wall (11), a left vertical wall (16), a lower wall (17), and an upper wall (19) surrounding and defining the cavity (13). The right vertical wall (11) has an overhanging wall portion (18) extending upward relative to the cavity (13) from the upper wall (19). On the outer surface of the upper wall (19), a plurality of dovetail grooves (14) are arranged longitudinally in parallel at a predetermined distance from the overhanging wall portion (18). The movable receiving groove wall (20) includes a dovetail block (22) that can fit into any dovetail groove (14). In the fitted state, the movable receiving groove wall (20) and the overhanging wall portion (18) constitute a receiving groove (30) with the corresponding part of the outer surface of the upper wall (19) serving as the receiving groove bottom (15).

2. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The movable receiving tank wall (20) also includes a glue-containing tank (21), which is configured as an opening structure located on the side of the movable receiving tank wall (20) facing the outward extension wall (18).

3. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The right vertical wall (11) and the left vertical wall (16) are parallel to each other and are both perpendicular to the upper wall (19). The upper wall (19) and the lower wall (17) are parallel to each other.

4. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, In the cavity (13), a positioning rib (12) is formed protruding into the cavity from the inner periphery of at least one of the right vertical wall (11), left vertical wall (16), lower wall (17) and upper wall (19).

5. The photovoltaic frame with adjustable slot width according to claim 4, characterized in that, The positioning rib (12) extends perpendicularly to the inner circumferential surface of the wall.

6. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The glue container (21) is configured as a stepped container that includes an overflow groove.

7. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The active receiving tank wall (20) has a longitudinal length corresponding to the extended wall portion (18).

8. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The active receiving tank wall (20) is configured in a multi-segment manner with two or more segments, and generally has a longitudinal length corresponding to the extended wall portion (18).

9. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The slotted frame body (10) is formed as an integrated longitudinal extension structure.

10. The photovoltaic frame with adjustable slot width according to claim 1, characterized in that, The movable receiving tank wall (20) and the receiving tank bottom (15) are installed vertically to have the same height as the extended wall (18).