Photovoltaic module structure suitable for photovoltaic power station

Abstract

The utility model discloses a photovoltaic assembly structure suitable for a photovoltaic power station. The photovoltaic assembly structure comprises a photovoltaic panel and a plurality of rod pieces arranged at equal intervals in the left and right directions of the photovoltaic panel. Each rod piece is fixedly provided with a front supporting frame and a rear supporting frame which are installed in a grouped mode. The front support frame is lower than the rear support frame, and the upper ends of the front support frame and the rear support frame are respectively provided with a first support plate part and a second support plate part for supporting the photovoltaic panel; clamping pieces are respectively mounted on the first supporting plate part and the second supporting plate part; the clamping piece acts on the edge of the upper end face of the photovoltaic panel. The whole clamping piece is M-shaped and is provided with a first L-shaped part and a second L-shaped part, and the second L-shaped part is fixed on the supporting plate part by a first screw; two inner walls of the first L-shaped part are respectively attached to the upper end surface and the side surface of the photovoltaic panel; the two ends of the second L-shaped part abut against the supporting plate part and the side face of the photovoltaic panel respectively. According to the utility model, the fixing tightness of the photovoltaic panel is proper, and the photovoltaic panel can be prevented from being crushed by overexertion in the fixing process.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic installation, in particular to a photovoltaic component structure suitable for a photovoltaic power station. Background Art

[0002] Photovoltaics (PV) is a technology that converts sunlight directly into electrical energy. It is based on the photoelectric effect of semiconductor materials. When photons (sunlight particles) hit semiconductor materials, they can excite electrons to jump from the valence band to the conduction band to form an electric current. The photovoltaic system mainly consists of photovoltaic panels, inverters, brackets, junction boxes, batteries (optional), etc. The photovoltaic panel is the core of the system and is usually composed of multiple solar cells connected in series or parallel to provide the required voltage and current. The inverter converts the direct current generated by the panel into alternating current for home or commercial use, or to be connected to the power grid. The bracket is used to fix the panel to ensure that it is stable and facing the best angle to capture sunlight. The photovoltaic system can be used independently or combined with the power grid to achieve energy complementarity and storage.

[0003] In the prior art, photovoltaic panels are generally installed on steel frames, which is costly. When photovoltaic panels are installed on steel frames, the photovoltaic panels are prone to damage due to alternating changes in volume caused by thermal expansion and contraction, which affects their service life. In addition, when fixing photovoltaic panels on steel frames with screws, excessive force applied to tighten the screws may damage the photovoltaic panels. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a photovoltaic module structure suitable for photovoltaic power stations that has a simple structure, low cost and can prevent thermal expansion and contraction damage to photovoltaic panels and installation damage.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model is suitable for a photovoltaic assembly structure of a photovoltaic power station, which includes a photovoltaic panel and a plurality of rods arranged equidistantly in the left and right directions of the photovoltaic panel; a front support frame and a rear support frame installed in groups are fixed on each of the rods; the front support frame is lower than the rear support frame, and the upper ends of the two support frames respectively have a support plate portion for supporting the photovoltaic panel, which are a first support plate portion and a second support plate portion; the first support plate portion and the second support plate portion are respectively installed with clamps; the clamps act on the upper end surface edge of the photovoltaic panel;

[0006] The clamping member is M-shaped as a whole, and has a first L-shaped portion and a second L-shaped portion, the second L-shaped portion is fixed to the support plate portion by a first screw; the two inner walls of the first L-shaped portion are respectively abutted against the upper end surface and the side surface of the photovoltaic panel; the two ends of the second L-shaped portion are respectively against the support plate portion and the side surface of the photovoltaic panel, and the two plate portions constituting the second L-shaped portion are respectively parallel to the side surface of the photovoltaic panel and the support plate portion.

[0007] Furthermore, the front support frame is a bending part, which also includes a first vertical part connected to the first support plate part, and a first fixing part fixed on the rod; the front support frame is a Z-shaped structure as a whole, and its first fixing part extends forward, which can facilitate the fixing operation and construction.

[0008] Furthermore, the first supporting plate portion has a strip-shaped hole.

[0009] Furthermore, the rear support frame is a bent member, which also includes a second vertical portion connected to the second support plate portion, and a second fixing portion fixed to the rod; the rear support frame is in a U-shape as a whole, and its opening faces backward. In this way, the second fixing portion extends backward, which can facilitate the fixing operation and construction.

[0010] Furthermore, the second supporting plate portion has a strip-shaped hole.

[0011] Furthermore, three rods, namely left, middle and right, are arranged below each photovoltaic panel.

[0012] Furthermore, the cross-section of the rod is a U-shaped structure that is open at the top, and the two upper edges of the rod have portions bent inward; the bottom of the rod has mounting holes arranged in a linear array, and the front support frame and the rear support frame are fixed relative to the rod by a second screw passing through the mounting holes.

[0013] Furthermore, the rods adjacent to each other in the extending direction of the rods are connected by strip-shaped fixing members embedded in the rods, and the strip-shaped fixing members are connected to the mounting holes by third screws.

[0014] Beneficial effects: The photovoltaic module structure of the utility model applicable to photovoltaic power stations has the following beneficial effects:

[0015] (1) The front and rear sides of the photovoltaic panel are connected by a front support frame and a rear support frame. Since the rear support frame is relatively high and has elastic deformation ability, it can effectively follow the thermal expansion and contraction of the photovoltaic panel to prevent the photovoltaic panel from being damaged due to thermal expansion and contraction. The structural design and fixing method of the clamping member enable the clamping member to adapt to the elastic deformation in the thickness direction of the photovoltaic panel, and can prevent the edge of the photovoltaic panel from being crushed due to excessive force during fixing. In this way, the above structure is not only low-cost and securely fixed, but also has a moderate degree of fixation on the photovoltaic panel, which can effectively prevent the thermal expansion and contraction of the photovoltaic panel itself and damage to the photovoltaic panel due to excessive force during installation.

[0016] (2) The photovoltaic module structure is a modular structure. When used in a photovoltaic power station, the rods of adjacent photovoltaic module structures are interconnected to form a very long photovoltaic module belt. Multiple photovoltaic module belts are pressed against each other to form a photovoltaic module area. In this way, the photovoltaic module structures are mutually restrained, and there is no need to set up anchoring cement columns. The photovoltaic module structure can be fixed by the weight of the photovoltaic components themselves, and the rods can also be simply anchored to the ground by fasteners. Overall, the cost is greatly reduced compared with the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A side view of a photovoltaic module structure suitable for a photovoltaic power station;

[0018] Figure 2 A three-dimensional structural diagram of a photovoltaic module structure suitable for a photovoltaic power station;

[0019] Figure 3 for Figure 1 The enlarged structure diagram of part A in the middle;

[0020] Figure 4 for Figure 1 The enlarged structure diagram of part B;

[0021] Figure 5 for Figure 2 The enlarged structure diagram of the middle C part;

[0022] Figure 6 This is a structural diagram of the front support frame;

[0023] Figure 7 This is the structural diagram of the rear support frame;

[0024] Figure 8 This is a structural diagram of the photovoltaic module area.

[0025] In the figure: 1-rod; 11-mounting hole; 2-front support frame; 21-first support plate portion; 22-first vertical portion; 23-first fixing portion; 3-rear support frame; 31-second support plate portion; 32-second vertical portion; 33-second fixing portion; 4-photovoltaic panel; 5-clamping member; 51-first L-shaped portion; 52-second L-shaped portion; 6-first screw; 7-strip-shaped fixing member; 8-second screw; 9-third screw. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-2 The photovoltaic assembly structure shown is suitable for a photovoltaic power station, which includes a photovoltaic panel 4 and a plurality of rods 1 arranged equidistantly in the left and right directions of the photovoltaic panel 4. In the illustrated embodiment, three rods, left, middle and right, are arranged under each photovoltaic panel 4.

[0028] A front support frame 2 and a rear support frame 3 installed in groups are fixed on each of the rods 1; the front support frame 2 is lower than the rear support frame 3, and the upper ends of the two support frames respectively have support plates for supporting the photovoltaic panel 4, which are the first support plate 21 and the second support plate 31; the first support plate 21 and the second support plate 31 are respectively installed with clamping members 5; the clamping members 5 act on the upper end surface edge of the photovoltaic panel 4;

[0029] like Figure 3-4 As shown, the clamp 5 is M-shaped as a whole, and has a first L-shaped portion 51 and a second L-shaped portion 52. The second L-shaped portion 52 is fixed to the support plate portion by a first screw 6. The two inner walls of the first L-shaped portion 51 are respectively in contact with the upper end surface and the side surface of the photovoltaic panel 4. The two ends of the second L-shaped portion 52 are respectively against the support plate portion and the side surface of the photovoltaic panel 4. The two plate portions constituting the second L-shaped portion 52 are respectively parallel to the side surface of the photovoltaic panel 4 and the support plate portion. The first screw 6 acts on the plate portion of the second L-shaped portion 52 that is parallel to the support plate portion. When the clamp 5 is fixed in this way, if excessive force is applied, the second L-shaped portion 52 can be deformed to prevent the clamp 5 from applying excessive force on the photovoltaic panel 4, resulting in damage to the edge of the photovoltaic panel 4.

[0030] like Figure 6 As shown, the front support frame 2 is a bending member, which also includes a first vertical portion 22 connected to the first support plate portion 21, and a first fixing portion 23 fixed to the rod 1; the front support frame 2 is a Z-shaped structure as a whole, and its first fixing portion 23 extends forward, which can facilitate the fixing operation and construction. The first support plate portion 21 has a strip hole.

[0031] like Figure 7As shown, the rear support frame 3 is a bending member, which also includes a second vertical portion 32 connected to the second support plate portion 31, and a second fixing portion 33 fixed to the rod 1; the rear support frame 3 is U-shaped as a whole, and its opening faces backward. In this way, the second fixing portion 33 extends backward, which can facilitate the fixing operation and construction. The second support plate portion 31 has a strip hole.

[0032] The cross section of the rod 1 is a U-shaped structure with an open top, and the two upper edges of the rod 1 have portions bent inward; the bottom of the rod 1 has mounting holes 11 arranged in a linear array, and the front support frame 2 and the rear support frame 3 are fixed relative to the rod 1 by second screws 8 passing through the mounting holes 11. Figure 5 As shown, the rods 1 adjacent to each other in the extending direction of the rods 1 are connected by a strip-shaped fixing member 7 embedded in the rods 1 , and the strip-shaped fixing member 7 is connected to the mounting hole 11 by a third screw 9 .

[0033] In the above structure, the front and rear sides of the photovoltaic panel 4 are connected by the front support frame 2 and the rear support frame 3. Since the rear support frame 3 is relatively high and has elastic deformation ability, it can effectively follow the thermal expansion and contraction of the photovoltaic panel 4 to prevent the photovoltaic panel 4 from being damaged due to thermal expansion and contraction. The structural design and fixing method of the clamp 5 enable the clamp 5 to adapt to the elastic deformation in the thickness direction of the photovoltaic panel 4, and can prevent the edge of the photovoltaic panel 4 from being crushed due to excessive force during fixing. In this way, the above structure is adopted, which is not only low-cost and firmly fixed, but also has a degree of tightness in fixing the photovoltaic panel 4, which can effectively prevent the thermal expansion and contraction of the photovoltaic panel 4 itself and the damage of the photovoltaic panel 4 due to excessive force during installation.

[0034] The above photovoltaic module structure is a modular structure. When used in a photovoltaic power station, the rods 1 of adjacent photovoltaic module structures are connected to each other to form a very long photovoltaic module belt, such as Figure 8 As shown, a plurality of photovoltaic module strips are pressed against each other to form a photovoltaic module area. In this way, the photovoltaic module structures are restrained from each other, and there is no need to set up anchoring cement columns. The photovoltaic module structure can be fixed by using the weight of the photovoltaic components themselves, and the rod 1 can also be relatively simply anchored to the ground by fasteners. Overall, the cost is greatly reduced compared with the existing technology.

[0035] In addition, the above-mentioned photovoltaic component belt has a windproof effect. The front support frame 2 creates a larger gap between the lower end of the photovoltaic panel 4 and the ground. When the wind is blowing, the wind exerts a downward pressure on the photovoltaic panel 4. When the wind blows from the back, the back side of the photovoltaic panel 4 guides the wind to the gap on the lower side of its front end and blows it out, which can effectively weaken the effect of the wind.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A photovoltaic module structure suitable for a photovoltaic power station, characterized in that: It comprises a photovoltaic panel (4) and a plurality of rods (1) arranged equidistantly in the left and right directions of the photovoltaic panel (4); a front support frame (2) and a rear support frame (3) installed in groups are fixed on each of the rods (1); the front support frame (2) is lower than the rear support frame (3), and the upper ends of both of them respectively have a support plate portion for supporting the photovoltaic panel (4), which is a first support plate portion (21) and a second support plate portion (31); a clamping member (5) is respectively installed on the first support plate portion (21) and the second support plate portion (31); the clamping member (5) acts on the upper end surface edge of the photovoltaic panel (4); The clamping member (5) is M-shaped as a whole, and comprises a first L-shaped portion (51) and a second L-shaped portion (52), wherein the second L-shaped portion (52) is fixed to the support plate portion by a first screw (6); the two inner walls of the first L-shaped portion (51) are respectively in contact with the upper end surface and the side surface of the photovoltaic panel (4); the two ends of the second L-shaped portion (52) are respectively in contact with the support plate portion and the side surface of the photovoltaic panel (4).

2. The photovoltaic module structure suitable for a photovoltaic power station according to claim 1, characterized in that: The front support frame (2) further comprises a first vertical portion (22) connected to the first support plate portion (21), and a first fixing portion (23) fixed to the rod (1); the front support frame (2) is a Z-shaped structure as a whole.

3. The photovoltaic module structure suitable for a photovoltaic power station according to claim 2, characterized in that: The first supporting plate portion (21) is provided with a strip-shaped hole.

4. The photovoltaic module structure suitable for a photovoltaic power station according to claim 1, characterized in that: The rear support frame (3) further comprises a second vertical portion (32) connected to the second support plate portion (31), and a second fixing portion (33) fixed to the rod (1); the rear support frame (3) is overall U-shaped, with its opening facing backwards.

5. The photovoltaic module structure suitable for a photovoltaic power station according to claim 4, characterized in that: The second supporting plate portion (31) is provided with a strip-shaped hole.

6. The photovoltaic module structure suitable for a photovoltaic power station according to claim 1, characterized in that: Three rods, namely left, middle and right, are arranged below each photovoltaic panel (4).

7. The photovoltaic module structure suitable for a photovoltaic power station according to claim 1, characterized in that: The cross section of the rod (1) is a U-shaped structure with an open top, and the two upper edges of the rod (1) have portions bent inward; the bottom of the rod (1) has mounting holes (11) arranged in a linear array, and the front support frame (2) and the rear support frame (3) are both fixed relative to the rod (1) by means of second screws (8) passing through the mounting holes (11).

8. The photovoltaic module structure suitable for a photovoltaic power station according to claim 7, characterized in that: The adjacent rods (1) in the extension direction of the rods (1) are connected via strip-shaped fixing members (7) embedded inside the rods (1), and the strip-shaped fixing members (7) are connected to the mounting holes (11) via third screws (9).

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