Fastening device for photovoltaic power generation assembly

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and particularly relates to a fastening device for a photovoltaic power generation assembly, which comprises a mounting frame, a fastening device, a fixing device and a fixing device. Four supporting legs are arranged at the bottom of the mounting frame, and four vertical limiting columns are arranged at the top of the mounting frame; a locking buckle I is arranged on the supporting leg; the solar cell panel is located in the protective frame; four mounting holes corresponding to the limiting columns in position are formed in the protective frame; the first fastener is provided with an avoiding groove for the limiting column to penetrate through. The second fastening piece is arranged on the supporting leg in a sleeving manner, and a second locking buckle is arranged on one side wall of the second fastening piece; one locking screw penetrates through the second locking buckle and the first locking buckle, and the second locking buckle and the first locking buckle are fixed through a locking nut; the top of the connecting plate is fixed to the side wall of the first fastener through a bolt, and the bottom of the connecting plate is fixed to the side wall of the second fastener through a bolt. The fastening device can solve the problems that an existing fastening device is likely to be affected by wind power to be loosened, and potential safety hazards exist, and has good market application prospects.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic power generation technical field, concretely relates to a fastener for photovoltaic power generation component. BACKGROUND

[0002] Photovoltaic power generation is a kind of technology using solar cell to convert solar energy into electric energy directly, and its working principle is based on photovoltaic effect, that is, when sunlight irradiates on semiconductor p-n junction, new hole-electron pair is formed, and under the action of p-n junction built-in electric field, hole flows from n region to p region, and electron flows from p region to n region, and after circuit is connected, electric current is formed.Photovoltaic power generation system is mainly composed of solar cell square array, battery pack, charge-discharge controller, inverter, ac distribution cabinet, solar tracking control system and other equipment.

[0003] Photovoltaic power generation component needs to be fastened during installation process, and the prior art usually adopts the scheme of punching bolt fixation, but bolt is directly fixed with solar cell panel frame, and rust may occur at the connection, which is troublesome when disassembling and maintaining, and even the frame of solar cell panel can be damaged.In order to overcome this problem, the patent with application number 202321185550.6 discloses a fastener for photovoltaic power generation component installation, which places photovoltaic power generation component on mounting rack when in use, and fixes four corners of photovoltaic power generation component through rotating screw rod and driving clamp, so that photovoltaic power generation component can be stably fixed on mounting rack, and photovoltaic power generation component does not need to be fixed through bolt after additional punching.However, the fastener has limited wind resistance, and after mounting rack is fixed to ground, the fastener can be loosened due to wind interference, which has safety hazard.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be construed as acknowledging that this information constitutes prior art with respect to any patentable matter disclosed in an application. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a fastener for photovoltaic power generation component to solve the problem that the existing fastener can be loosened due to wind interference, which has safety hazard.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A fastener for photovoltaic power generation component, comprising:

[0008] Mounting rack, the bottom of which is provided with four supporting legs, and the top of which is provided with four vertical limiting columns;Locking buckle one is arranged on the supporting leg;

[0009] The solar cell panel is located inside the protective frame; four mounting holes corresponding to positions of the limiting columns are formed on the protective frame;

[0010] The first fastener is located above the protective frame; an avoiding slot for the limiting column to pass through is formed on the first fastener;

[0011] The second fastener is sleeved on the supporting leg, and a locking buckle two is arranged on one side wall of the second fastener; the locking buckle two and the locking buckle one are penetrated by one locking screw rod, and are fixed by a locking nut;

[0012] The connecting plate is fixed on the side wall of the first fastener at the top through bolts, and is fixed on the side wall of the second fastener at the bottom through bolts.

[0013] As preferred, the limiting column passes through the avoiding slot at the top, and a threaded groove is formed; a anti-loosening bolt is arranged in the threaded groove; the outer diameter of the top of the anti-loosening bolt is greater than the inner diameter of the avoiding slot.

[0014] As preferred, the side wall of the second fastener is provided with a mounting groove; the bottom of the connecting plate is fixed in the mounting groove through bolts.

[0015] As preferred, the protective frame comprises an upper frame and a lower frame; the solar cell panel is located between the upper frame and the lower frame; mounting holes are formed at four corner positions of the upper frame and the lower frame.

[0016] As preferred, the first fastener is internally provided with a containing groove in communication with the avoiding slot; a compression spring is arranged in the containing groove; the compression spring is sleeved on the limiting column, and is provided with a pressing plate at the bottom; an avoiding hole is formed in the middle of the pressing plate, and is in sliding cooperation with the limiting column; the bottom of the pressing plate is in abutment with the upper surface of the protective frame, and the top of the pressing plate is in abutment with the bottom of the first fastener.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] (1) The fastening device for the photovoltaic power generation assembly is connected by the connecting plate, the first fastener and the second fastener, and is used in cooperation with the locking screw rod, so that the four corners of the protective frame outside the solar cell panel can be locked and fixed, wind interference can be effectively resisted, and the device loosening and causing safety hazards can be avoided.

[0019] (2) The fastening device for the photovoltaic power generation assembly is internally provided with the compression spring in each first fastener; the compression spring is in cooperation with the pressing plate below, can apply pressure to the four corners of the protective frame, and makes the protective frame tightly press on the mounting frame, so as to be beneficial to strengthening the fastening effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the external schematic view of the utility model;

[0021] Figure 2 is the side schematic view of the utility model;

[0022] Figure 3 is the schematic view of the first fastener, the second fastener and the connecting plate of the utility model;

[0023] Figure 4 is the top view of the mounting rack of the utility model;

[0024] MAIN REFERENCE NUMERALS EXPLANATION:

[0025] 1, mounting rack, 2, support foot, 3, limiting column, 4, lock buckle one, 5, solar cell panel, 6, protective frame, 7, first fastener, 8, avoiding groove, 9, second fastener, 10, lock buckle two, 11, lock screw, 12, lock nut, 13, connecting plate, 14, threaded groove, 15, anti-drop bolt, 16, mounting groove, 17, upper frame, 18, lower frame, 19, accommodating groove, 20, compression spring, 21, pressing plate. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model patent will be described clearly and completely below, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0027] In the description of the utility model, it needs to be explained that, if the orientation or position relationship indicated by the terms such as“center”,“upper”,“lower”,“left”,“right”,“vertical”,“horizontal”,“inner”,“outer” appears, it is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0028] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, if the terms such as“installation”,“connection”,“connection” appear, it should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through the intermediate medium, it can be the connection inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] The accompanying drawings are incorporated in and constitute a part of this specification. Figures 1-4 A fastening device for a photovoltaic power generation assembly, comprising:

[0030] A mounting frame 1, provided with four supporting legs 2 at the bottom and four vertical limiting columns 3 at the top; the supporting legs 2 are provided with locking buckles 4;

[0031] A solar cell panel 5 is located inside a protective frame 6; the protective frame 6 is provided with four mounting holes corresponding to the positions of the limiting columns 3;

[0032] A first fastener 7 is located above the protective frame 6; the first fastener 7 is provided with an avoiding slot 8 for the limiting columns 3 to pass through;

[0033] A second fastener 9 is sleeved on the supporting leg 2, and is provided with a locking buckle 10 on one side wall; the locking buckle 10 and the locking buckle 4 are penetrated by a locking screw 11, and are fixed by a locking nut 12;

[0034] A connecting plate 13 is fixed on the side wall of the first fastener 7 by bolts at the top, and is fixed on the side wall of the second fastener 9 by bolts at the bottom.

[0035] In this embodiment, the second fastener 9 is provided with a mounting slot 16 on the side wall, and the bottom of the connecting plate 13 is fixed in the mounting slot 16 by bolts, so that the inner side of the connecting plate 13 can be attached to the supporting leg 2 of the mounting frame 1. The protective frame 6 includes an upper frame 17 and a lower frame 18; the solar cell panel 5 is located between the upper frame 17 and the lower frame 18, and the upper frame 17 and the lower frame 18 are provided with mounting holes at the four corner positions, which can be penetrated by the limiting columns 3, facilitating the subsequent sleeving of the first fastener 7, the pressing plate 21 and the compression spring 20.

[0036] The first fastener 7 is internally provided with a containing groove 19 communicated with the avoiding groove 8, and the containing groove 19 is internally provided with a compression spring 20; the compression spring 20 is sleeved on the limiting column 3, and the bottom of the compression spring 20 is provided with a pressing plate 21; the pressing plate 21 is internally provided with an avoiding hole communicated with the limiting column 3 in a sliding mode; the bottom of the pressing plate 21 is abutted with the upper surface of the protective frame 6, and the top of the pressing plate 21 is abutted with the bottom of the first fastener 7. During installation, firstly, the second fastener 9 is moved upwards along the supporting leg 2 to a higher position, so that the first fastener 7 is beyond the limiting column 3 by a distance; then, the solar cell panel 5 and the protective frame 6 are placed on the mounting frame 1 together, so that the limiting column 3 passes through the corresponding mounting hole of the protective frame 6; then, the pressing plate 21 and the compression spring 20 are sleeved on each limiting column 3, and the first fastener 7 is moved downwards, so that the first fastener 7 is moved downwards to above the corresponding compression spring 20, and the compression spring 20 is smoothly entered into the containing groove 19 in the first fastener 7; finally, the limiting screw is sequentially passed through the locking buckle one 4 and the locking buckle two 10, and is locked by the locking nut 12. At this time, the compression spring 20 is compressed in the containing groove 19 in the first fastener 7, and the top of the pressing plate 21 is abutted with the bottom of the first fastener 7.

[0037] In addition, the top of the limiting column 3 of the embodiment passes through the avoiding groove 8 and is internally provided with a threaded groove 14; the threaded groove 14 is internally provided with an anti-loosening bolt 15, and the top outer diameter of the anti-loosening bolt 15 is greater than the inner diameter of the avoiding groove 8. When the locking screw 11 and the locking nut 12 are accidentally separated from the limiting position, the first fastener 7 may be bounced upwards under the elastic force of the compression spring 20, at this time, the anti-loosening bolt 15 can temporarily abut against the top of the first fastener 7, so as to avoid the first fastener 7 from being separated upwards from the limiting column 3, and waiting for the maintenance personnel to find and replace.

[0038] In actual use, the four supporting legs 2 can be respectively placed on the ground at different height positions and fixed, or supporting legs 2 with different lengths are used, so that the solar cell panel 5 is in an inclined state, and sunlight can be conveniently absorbed to generate electricity.

[0039] The utility model discloses a fastening device for photovoltaic power generation assembly, under the premise that the mounting frame 1 is fixed on the ground, through setting up compact structure's first fastener 7 and second fastener 9, cooperate with the connecting plate 13 that the supporting leg 2 is abutted, make fastening device have stronger wind -resisting capacity, be favorable to avoid the device loosening in the gale weather, eliminate the hidden danger of safety, simultaneously, the protective frame 6 and mounting frame 1 do not directly adopt bolt fixed, will not appear because bolt rust and lead to the case of damaging frame or solar cell panel 5 when disassembling, very practical, have better market application prospect.

[0040] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to limit the application to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various exemplary embodiments with various modifications being applicable. The scope of the application is intended to be limited only by the claims submitted with this application and their equivalents.

Claims

1. A fastening device for a photovoltaic power generation assembly, characterized in that, The utility model relates to a solar energy power generation device, including: The mounting frame is equipped with four support feet at the bottom and four vertical limiting columns at the top; the support feet are equipped with locking buckles one; The solar cell panel is located inside the protective frame; the protective frame is provided with four mounting holes corresponding to the positions of the limiting columns; The first fastener is located above the protective frame; the first fastener is provided with an avoidance slot for the limiting columns to pass through; The second fastener is sleeved on the support feet and is equipped with locking buckles two on one side wall; the locking buckles two and the locking buckles one are penetrated by a locking screw and are fixed through a locking nut; The connecting plate is fixed on the side wall of the first fastener through bolts at the top and is fixed on the side wall of the second fastener through bolts at the bottom.

2. The fastening device for a photovoltaic power generation module according to claim 1, characterized by, The limiting column passes through the avoidance slot at the top and is provided with a threaded groove; the threaded groove is equipped with an anti-loosening bolt, and the top outer diameter of the anti-loosening bolt is larger than the inner diameter of the avoidance slot.

3. The fastening device for a photovoltaic power generation module according to claim 1, characterized by, The side wall of the second fastener is provided with a mounting slot, and the bottom of the connecting plate is fixed in the mounting slot through bolts.

4. The fastening device for photovoltaic power generation modules according to claim 1, characterized by, The protective frame includes an upper frame and a lower frame; the solar cell panel is located between the upper frame and the lower frame, and the upper frame and the lower frame are provided with mounting holes at the four corner positions.

5. The fastening device for photovoltaic power generation modules according to claim 1, characterized by, The first fastener is provided with a containing slot in communication with the avoidance slot inside, and the containing slot is equipped with a compression spring; the compression spring is sleeved on the limiting column and is provided with a pressing plate at the bottom; the pressing plate is provided with an avoidance hole in the middle and is in sliding cooperation with the limiting column; the bottom of the pressing plate is in abutment with the upper surface of the protective frame, and the top is in abutment with the bottom of the first fastener.

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