Wind-sand-resistant frame structure for photovoltaic module

Abstract

The utility model provides a wind-sand-resistant frame structure for a photovoltaic module, which comprises a frame, the upper end of the frame is provided with a clamping groove part, and the clamping groove part is used for installing a photovoltaic panel; the frame is provided with a cavity, an air duct is arranged on the frame in a penetrating mode, the air duct is isolated from the cavity, and the air duct is used for dredging wind and sand on the back face of the photovoltaic panel. According to the scheme, the air duct is arranged on the frame and is used for dredging wind and sand in the rectangular notch in the back surface of the photovoltaic module, so that the wind and sand resistance of the photovoltaic module is improved; in order to prevent wind and sand from flowing into the cavity of the frame, the air duct in the scheme is isolated from the cavity, and the wind and sand are prevented from flowing into the cavity, so that the damage of the support frame of the photovoltaic module caused by overweight load is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solar energy, in particular to a wind and sand resistant frame structure for a photovoltaic component. Background Art

[0002] At present, photovoltaic modules on the market cannot reduce the wind resistance of wind and sand. It is not advisable to only use the product's own design to resist it. This method will increase the material, production cost and transportation cost, and the effect is not ideal. Sandstorms can still cause photovoltaic arrays to be blown over and damage photovoltaic modules, resulting in relatively large economic losses.

[0003] The prior art also discloses a technical solution for a photovoltaic module frame, such as the application No. 201010175400.8, which is a frame for a solar photovoltaic module, wherein a T-shaped slot is provided on the mounting edge at the lower portion of the frame, and two extended edges are provided at the lower portion of the T-shaped slot. The solution designs a T-shaped slot on the mounting edge of the frame, and the mounting screws can be adjusted in the T-shaped slot to find the position for connection with the bracket. Although the solution can avoid the process of drilling mounting holes on the mounting edge of the frame and reduce the production cost, the solution does not have the ability to resist wind and sand.

[0004] In summary, the technical problem that this solution needs to solve is how to improve the wind and sand resistance of photovoltaic modules. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes an anti-wind and sand frame structure for photovoltaic modules. In this scheme, an air duct is arranged on the frame to clear the wind and sand in the rectangular recess on the back of the photovoltaic module, thereby improving the wind and sand resistance of the photovoltaic module; in order to prevent the wind and sand from flowing into the cavity of the frame, the wind duct in this scheme is isolated from the cavity to prevent the wind and sand from flowing into the cavity, thereby preventing the support frame of the photovoltaic module from being damaged due to excessive load.

[0006] Specifically, the utility model proposes an anti-wind and sand frame structure for a photovoltaic module, including a frame, a slot portion is provided at the upper end of the frame, and the slot portion is used to install a photovoltaic panel; the frame has a cavity, and an air duct is provided through the frame, the air duct is isolated from the cavity, and the air duct is used to guide the wind and sand on the back of the photovoltaic panel.

[0007] Preferably, the air duct is a ventilation hole.

[0008] Preferably, the angle between the axial direction of the ventilation hole and the horizontal plane is between 5° and 30°.

[0009] Preferably, the frame includes an upper wall panel, a lower wall panel, a left side panel and a right side panel, the upper wall panel is located above the lower wall panel, the left sides of the upper wall panel and the lower wall panel are connected by the left side panel, and the right sides of the upper wall panel and the lower wall panel are connected by the right side panel.

[0010] Preferably, the left side plate is provided with a first opening, the right side plate is provided with a second opening, the first opening and the second opening are connected through a connecting portion, and the connecting portion is provided with a through hole connected with the first opening and the second opening.

[0011] Preferably, the first opening is higher than the second opening.

[0012] Preferably, the upper wall plate and the lower wall plate are respectively provided with reinforcing ribs.

[0013] Preferably, there are multiple ventilation holes on the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0015] Figure 1 It is a side view of a first embodiment of a wind and sand resistant frame structure for a photovoltaic module;

[0016] Figure 2 yes Figure 1 Sectional view in the AA direction;

[0017] Figure 3 It is a schematic diagram of the flow direction of wind and sand in the frame structure;

[0018] Figure 4 is a side view of a second embodiment of a wind and sand resistant frame structure for a photovoltaic module;

[0019] Figure 5 yes Figure 4 Cross-sectional view along the BB direction.

[0020] The reference numerals in the accompanying drawings are as follows:

[0021] 11-frame; 12-slot portion; 13-cavity; 14-fixing column; 15-ventilation hole; 16-upper wall panel; 17-lower wall panel; 18-left side panel; 19-right side panel; 20-first opening; 21-second opening; 22-connecting portion; 23-reinforcement rib; 24-upper frame portion; 25-lower frame portion. DETAILED DESCRIPTION

[0022] The technical solution of the present application is further described below in conjunction with specific embodiments, but the present application is not limited to these embodiments.

[0023] like Figures 1 to 3 As shown, the present scheme proposes an anti-wind and sand frame structure for a photovoltaic module, comprising a frame 11, wherein a slot portion 12 is provided at the upper end of the frame 11, wherein the slot portion 12 is used to install a photovoltaic panel; the frame 11 has a cavity 13, wherein an air duct is provided through the frame 11, wherein the air duct is isolated from the cavity 13, and wherein the air duct is used to guide the wind and sand on the back of the photovoltaic panel.

[0024] The technical effect of this solution is that an air duct is provided on the frame 11 to guide the wind and sand, thereby improving the wind and sand resistance of the photovoltaic module.

[0025] When wind and sand blow on the front of the photovoltaic module panel, since the front of the photovoltaic module is used to receive solar energy, the front is inclined and smooth, and it is not easy to form an obstruction, the front of the photovoltaic module has a stronger ability to resist wind and sand.

[0026] The back of a photovoltaic module usually has a frame, and the four frames and the photovoltaic panel form a concave space. When wind and sand blow into the back of the photovoltaic module, the wind and sand cannot be effectively cleared in the concave space, and the photovoltaic module may be overturned. In this solution, an air duct is provided on the frame 11 to clear the wind and sand in the rectangular concave on the back of the photovoltaic module, thereby improving the wind and sand resistance of the photovoltaic module.

[0027] In order to prevent wind and sand from flowing into the cavity 13 of the frame, the air duct in this solution is isolated from the cavity 13 to prevent wind and sand from flowing into the cavity 13, thereby preventing the support frame of the photovoltaic module from being damaged due to excessive load.

[0028] As an implementation manner of this embodiment, the air duct is a ventilation hole 15.

[0029] As an implementation mode of this embodiment, the angle between the axial direction of the ventilation hole 15 and the horizontal plane is between 5° and 30°.

[0030] The angle range of the ventilation holes 15 of the present solution is convenient for the outflow of dust and foreign matter, and also convenient for the flow of wind direction, thereby improving the wind and sand resistance of the photovoltaic module.

[0031] The frame 11 includes an upper wall panel 16, a lower wall panel 17, a left side panel 18 and a right side panel 19. The upper wall panel 16 is located above the lower wall panel 17. The left sides of the upper wall panel 16 and the lower wall panel 17 are connected by the left side panel 18, and the right sides of the upper wall panel 16 and the lower wall panel 17 are connected by the right side panel 19.

[0032] As an implementation mode of this embodiment, a first opening 20 is provided on the left side plate 18, and a second opening 21 is provided on the right side plate 19. The first opening 20 and the second opening 21 are connected through a connecting portion 22, and a through hole is provided in the connecting portion 22 that is connected with the first opening 20 and the second opening 21.

[0033] The air duct formed between the first opening 20, the second opening 21 and the connecting portion 22 in this solution can be isolated from the cavity 13 to prevent wind and sand from flowing into the cavity 13. The connecting portion 22 is equivalent to adding a supporting point inside the cavity 13, thereby improving the load strength of the frame.

[0034] Among them, the frame structure in this solution adopts an integrated die-casting process to prevent sharp burrs on the welding interface from scratching operators.

[0035] As an implementation of this embodiment, the first opening 20 is higher than the second opening 21, so as to improve the efficiency of clearing the wind and sand.

[0036] As an implementation of this embodiment, the upper wall plate 16 and the lower wall plate 17 are respectively provided with reinforcing ribs 23. The reinforcing ribs 23 are provided to improve the structural strength of the upper wall plate 16 and the lower wall plate 17, and improve the pressure bearing capacity of the upper wall plate 16 and the lower wall plate 17.

[0037] As an implementation method of this embodiment, the number of frames of the photovoltaic module is four, and the number of ventilation holes 15 on each frame is multiple, and the multiple ventilation holes 15 are arranged along the length direction of the frame, so that the back of the photovoltaic module can guide the wind and sand, thereby improving the anti-wind and sand ability of the photovoltaic module.

[0038] In addition, if Figure 4 and Figure 5 As shown, the frame 11 can also be designed into two parts, namely, an upper frame part 24 and a lower frame part 25. The upper end of the upper frame part 24 is provided with a slot part 12 for installing a photovoltaic panel. The upper frame 11 and the lower frame part 25 are split structures. The distance between the upper frame part 24 and the lower frame part 25 forms an air duct. The upper frame part 24 is installed above the lower frame 11 through a fixing column 14 or a fixing block. The distance between the upper frame 11 and the lower frame 11 forms an air duct. Although this method requires welding multiple fixing columns 14, which is time-consuming and labor-intensive, the ventilation surface of the air duct in this method is larger, which is more convenient for the passage of wind and sand.

[0039] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A wind and sand resistant frame structure for a photovoltaic module, characterized in that: The invention comprises a frame (11), wherein a slot portion (12) is provided at the upper end of the frame (11), and the slot portion (12) is used to install a photovoltaic panel; the frame (11) has a cavity (13), and an air duct is provided through the frame (11), the air duct is isolated from the cavity (13), and the air duct is used to guide the wind and sand on the back of the photovoltaic panel.

2. The wind and sand resistant frame structure for photovoltaic modules according to claim 1, characterized in that: The air duct is a ventilation hole (15).

3. The wind and sand resistant frame structure for photovoltaic modules according to claim 2, characterized in that: The angle between the axial direction of the ventilation hole (15) and the horizontal plane is between 5° and 30°.

4. The wind and sand resistant frame structure for photovoltaic modules according to claim 3, characterized in that: The frame (11) comprises an upper wall plate (16), a lower wall plate (17), a left side plate (18) and a right side plate (19); the upper wall plate (16) is located above the lower wall plate (17); the left sides of the upper wall plate (16) and the lower wall plate (17) are connected via the left side plate (18); and the right sides of the upper wall plate (16) and the lower wall plate (17) are connected via the right side plate (19).

5. The wind and sand resistant frame structure for photovoltaic modules according to claim 4, characterized in that: The left side plate (18) is provided with a first opening (20), and the right side plate (19) is provided with a second opening (21); the first opening (20) and the second opening (21) are connected via a connecting portion (22); and the connecting portion (22) is provided with a through hole connected with the first opening (20) and the second opening (21).

6. The wind and sand resistant frame structure for photovoltaic modules according to claim 5, characterized in that: The first opening (20) is higher than the second opening (21).

7. The wind and sand resistant frame structure for photovoltaic modules according to claim 4, characterized in that: The upper wall plate (16) and the lower wall plate (17) are respectively provided with reinforcing ribs (23).

8. The wind and sand resistant frame structure for photovoltaic modules according to claim 2, characterized in that: There are multiple ventilation holes (15) on the frame.

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