Photovoltaic connector and metal roof photovoltaic system

Abstract

The present invention discloses a photovoltaic connector, comprising a frame clamp for fixing the side of a photovoltaic panel; a rotating fastening frame is rotatably provided on the frame clamp, and a lock that can slide on the frame clamp and is used to be embedded in a metal roof panel to complete the fixation is also rotatably provided on the frame clamp; a limiting member is provided on the rotating fastening frame for limiting the lock when the lock is embedded in the metal roof panel and after the rotating fastening frame is rotated to a preset position. Also disclosed is a metal roof photovoltaic system including the above-mentioned photovoltaic connector. The present invention reliably connects the photovoltaic module to the metal roof without damaging the roof waterproof structure, can be quickly disassembled and assembled, has strong wind-resistant performance, and can be applied to the currently more common corrugated metal roof.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic buildings, and in particular to a photovoltaic connector and a metal roof photovoltaic system. Background Art

[0002] Most industrial and commercial factory roofs are metal roofs. How to reliably connect photovoltaic modules to the existing metal roofs and meet the requirements of fire prevention, waterproofing, windproofing and easy disassembly is a technical problem that urgently needs to be solved.

[0003] The patent specification with publication number CN111706583A discloses a photovoltaic module fastener, including a support, two V-shaped clamps, a support block and a bolt; the support includes a flat plate and vertical plates respectively arranged on both sides of the bottom of the flat plate, the two ends of the flat plate extend outward, and the bottom surface of the outwardly extending end of the flat plate is used to contact the upper surface of the photovoltaic module; the two V-shaped clamps are respectively placed horizontally on the inner sides of the two vertical plates and hinged to the vertical plates, the openings of the V-shaped clamps are arranged opposite to each other, and the two sides of the support block are respectively in contact with the upper inclined plates of the two horizontally placed V-shaped clamps; the bolts are threadedly connected to the flat plate and the support block in turn, and the bolts are used to control the upward movement of the support block, thereby driving the V-shaped clamp to rotate so as to clamp on the side of the corrugated board.

[0004] The patent specification with the announcement number CN214205407U discloses a BIPV photovoltaic component, including: color steel tiles, clamps, pressure blocks, and multiple photovoltaic modules. The color steel tiles have multiple step-shaped assembly areas, and the multiple assembly areas are spaced apart and distributed, and the top of each assembly area has a mounting hook. The clamp includes a first clip and a second clip, and the first clip is fixedly connected to the second clip and jointly clamps the mounting hook. The pressure block covers the clamp, and the pressure block is fixedly connected to at least one of the first clip and the second clip. Each photovoltaic module includes a solar panel and a frame clamped on the edge of the solar panel. In two adjacent photovoltaic modules, the frame on the right side of one photovoltaic module and the frame on the left side of the other photovoltaic module are located on both sides of the mounting hook and are clamped in the same assembly area by the bottom end of the same pressure block.

[0005] The above two types of component fasteners have many disadvantages such as insufficient wind resistance, insufficient stability, insufficient waterproofness, easy aging and deformation, and inability to be flexibly disassembled and assembled. Summary of the Invention

[0006] One purpose of the present invention is to provide a photovoltaic connector that reliably connects photovoltaic modules to metal roofs without damaging the roof waterproof structure. It can be quickly disassembled and assembled, has strong wind resistance, and can be applied to the currently more common corrugated metal roofs.

[0007] A photovoltaic connector includes a frame clamp for fixing the side of a photovoltaic panel; a rotating fastening frame is rotatably provided on the frame clamp, and a lock that can slide on the frame clamp and is used to be embedded in a metal roof panel to complete fixation is also rotatably provided on the frame clamp; the rotating fastening frame is provided with a limiting member for embedding the lock in the metal roof panel and limiting the lock after the rotating fastening frame is rotated to a preset position.

[0008] Preferably, the lock has a connecting arm rotatably connected to the frame clamp, the connecting arm is provided with a sliding groove, and the frame clamp is provided with a rotating shaft for the lock to rotate and slide.

[0009] Further preferably, there are two connecting arms arranged opposite to each other, and an avoidance groove is formed between the two connecting arms for avoiding the frame clamp when the lock slides.

[0010] More preferably, the width of the border of the end portion of the avoidance groove close to the notch is greater than the width of the border of other portions of the avoidance groove.

[0011] More preferably, the limiting member is a protrusion, the surface of the protrusion facing the lock is a first arcuate surface, and the peripheral surface of the end frame is a second arcuate surface; in the locked state, the first arcuate surface is in contact with the second arcuate surface.

[0012] More preferably, the first curved surface, the second curved surface and the contact surface between the rotating fastening frame and the metal roof panel are all provided with flexible wear-resistant rubber.

[0013] Preferably, a support plate is provided at one end of the rotating fastening frame away from the rotating shaft to increase the contact area with the metal roof panel.

[0014] Another object of the present invention is to provide a metal roof photovoltaic system, comprising the above-mentioned photovoltaic connector.

[0015] Beneficial effects of the present invention:

[0016] The present invention reliably connects the photovoltaic module to the metal roof without damaging the roof waterproof structure, can be quickly disassembled and assembled, has strong wind-resistant performance, and can be applied to the currently more common corrugated metal roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the photovoltaic connector in the first state;

[0018] Figure 2 This is a schematic diagram of the structure of the photovoltaic connector in the second state;

[0019] Figure 3 This is a schematic diagram of the structure of the photovoltaic connector in the third state;

[0020] Figure 4 is a schematic diagram of the installation structure of the photovoltaic connector in the first state;

[0021] Figure 5 is a schematic diagram of the installation structure of the photovoltaic connector in the second state;

[0022] Figure 6 This is a schematic diagram of the installation structure of the photovoltaic connector in the third state. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-3 As shown, a photovoltaic connector includes a frame clamp 1, a rotating fastening frame 2 rotatably arranged on the frame clamp 1, and a lock 3 rotatably arranged on the frame clamp 1 and capable of sliding on the frame clamp 1.

[0025] The frame clamp 1 has a slot 12 for the side of the photovoltaic panel to extend into. On the side of the frame clamp 1 away from the slot 12, there are rotating shafts 12 disposed on either side of the slot 12. One end of the rotating fastening bracket 2 is pivotally mounted on one of the rotating shafts 12 and engages with the frame clamp 1. A support plate 22 is provided on the end of the rotating fastening bracket 2 away from the rotating shaft, giving the rotating fastening bracket 2 an L-shape.

[0026] The lock 3 is embedded in the metal roof panel for securement. In this embodiment, the lock 3 has two symmetrically arranged connecting arms 31, each of which is provided with a slide groove 311. The two slide grooves 311 are sleeved on the corresponding rotating shaft 12, allowing the connecting arms 31 to rotate about the rotating shaft 12 while sliding on the frame clamp 1. A clearance groove 32 is formed between the two connecting arms 31 to avoid the frame clamp 1 when the lock 3 slides. In addition, the slide groove 311 of this embodiment is located near one end of the connecting arm 31; at the same time, the diameter of the end of the rotating shaft 12 is larger than the width of the slide groove 311, which acts as a limit.

[0027] The rotating fastening frame 2 is provided with a stopper 21 for limiting the position of the lock 3. In this embodiment, the stopper 21 is a protrusion, the surface of which facing the lock 3 is a first curved surface, and the peripheral surface of the end frame 3111 of the avoidance groove 311 near the notch is a second curved surface. In the locked state, the first curved surface and the second curved surface are in contact. In order to ensure that the lock 3 does not touch the limit member 21 during rotation, and the limit member 21 can effectively limit the lock 3 after the rotating fastening frame 2 is rotated into place, it is necessary to meet the following requirements: the width d2 of the end frame 3111 is greater than the width d1 of the frames of other parts of the avoidance groove 311, that is, in the second state, the distance d4 from the center of the rotating axis 12 to the farthest point of the end frame 3111 is greater than the vertical distance d3 from the center of the rotating axis 12 to the frames of other parts of the avoidance groove 311, and at the same time, the distance d4 from the center of the rotating axis 12 to the farthest point of the second curved surface is equal to the distance d5 from the center of the rotating axis 12 to the first curved surface. Here, the first curved surface can be regarded as a part of an arc with the center of the rotating axis 12 as the center and a radius of d5.

[0028] In order to enhance the fastening effect, the first curved surface, the second curved surface and the contact surface between the rotating fastening frame 2 and the metal roof panel are all provided with flexible wear-resistant rubber to increase the friction at the connection.

[0029] A metal roof photovoltaic system includes a metal roof panel 4 and a plurality of spliced photovoltaic panels 5 arranged on the metal roof panel 4. The metal roof panel 4 has a plurality of wave crest bosses arranged at intervals, and the photovoltaic panels 5 are specifically placed on the wave crest bosses. In this embodiment, the wave crest bosses include large wave crest bosses and small wave crest bosses that are alternately arranged, and the side edges of the photovoltaic panels 5 are located on the large wave crest bosses. The top of the large wave crest boss is continuously bent to form a support 41, and grooves are formed on both sides of the large wave crest boss. This metal roof photovoltaic system fixes the photovoltaic panel 5 on the support 41 of the large wave crest boss through the above-mentioned photovoltaic connector. It should be noted that the photovoltaic connectors located on both sides of the large wave crest boss are of the same principle and symmetrical structure.

[0030] The specific installation steps are:

[0031] 1. Fix the photovoltaic connector on the four corners of the photovoltaic panel 5. At this time, the position relationship of the components of the photovoltaic connector is in the first state, and there is no interference between the components. Put the fixed photovoltaic module between the adjacent large wave crest convex platforms of the metal roof panel 4. There is a small wave crest convex platform in the middle of the large wave crest convex platform, which has a supporting effect on the photovoltaic module. Figure 4 As shown;

[0032] 2. Rotate the lock 3 of the photovoltaic connector and slide the lock 3 along the slide groove 311 into the grooves on both sides of the large wave crest boss, so that the photovoltaic connector is in the second state, such as Figure 5 As shown;

[0033] 3. Rotate the rotating fastening frame 2 so that it is perpendicular to the metal roof panel 4. At this time, due to the presence of the limiter 21, the photovoltaic connector is in the third state. The size relationship is as described above, so that the limiter 21 has horizontal and vertical limits on the lock 3 to lock the lock 3 in the groove of the large wave crest boss, such as Figure 6 shown.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic connector, characterized in that: It includes a frame clamp for fixing the side of the photovoltaic panel; a rotating fastening frame is rotatably provided on the frame clamp, and a lock that can slide on the frame clamp and is used to be embedded in the metal roof panel for fixing is also rotatably provided on the frame clamp, and the metal roof panel has a plurality of wave crest bosses arranged at intervals, and the wave crest bosses include large wave crest bosses and small wave crest bosses that are alternately arranged; the rotating fastening frame is provided with a limiting member when the lock is embedded in the metal roof panel and limits the lock after the rotating fastening frame is rotated to a preset position, and the preset position includes rotating the lock of the photovoltaic connector and sliding the lock along the slide groove into the grooves on both sides of the large wave crest boss, and rotating the rotating fastening frame so that it is perpendicular to the metal roof panel; The lock has a connecting arm rotatably connected to the frame clamp, the connecting arm is provided with a slide groove, the frame clamp is provided with a rotating shaft for the lock to rotate and slide, the connecting arm has two oppositely arranged arms, and a avoidance groove is formed between the two connecting arms for avoiding the frame clamp when the lock slides, the width of the end frame of the avoidance groove close to the notch is greater than the width of the frame of other parts of the avoidance groove, the connecting arms are provided with a slide groove, and the two slide grooves are sleeved on the corresponding rotating shaft; The limiting member is a convex block, the surface of the convex block facing the lock is a first arcuate surface, and the peripheral surface of the end frame is a second arcuate surface; in the locked state, the first arcuate surface is in contact with the second arcuate surface.

2. The photovoltaic connector according to claim 1, characterized in that: The first curved surface, the second curved surface and the contact surface between the rotating fastening frame and the metal roof panel are all provided with flexible wear-resistant rubber.

3. The photovoltaic connector according to claim 1, characterized in that: A support plate is provided at one end of the rotating fastening frame away from the rotating shaft.

4. A metal roof photovoltaic system, characterized in that: The photovoltaic connector comprises any one of claims 1 to 3.

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