CN220673699U

CN220673699U - Connecting device and photovoltaic array

Info

Publication number: CN220673699U
Application number: CN202322173463.5U
Authority: CN
Inventors: 周康; 何江涛; 张娜; 黄华; 刘细亮; 张晓峰
Original assignee: Xian Longi Clean Energy Co Ltd
Current assignee: Xian Longi Clean Energy Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-03-26
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a connecting device and a photovoltaic array, relates to the technical field of photovoltaics, and aims to solve the problem that a connecting assembly and a prestressed cable are not firmly connected due to the fact that the connection between a base and a pressing piece is not firm easily. The connecting device is used for fixing the photovoltaic module on the prestressed cable, and the connecting device comprises: a clamping member and a fastener. The clamping piece comprises a base plate, a first arc plate and a second arc plate which are sequentially connected. The base plate and the second arc plate are oppositely arranged, and the first arc plate is provided with an accommodating space which is used for accommodating the prestressed cable. The central angle of the second arc plate deviates from the base plate, and the first arc plate and the second arc plate are provided with internal common tangent lines. The fastener penetrates through the base plate and the second arc plate and is used for simultaneously enabling the clamping piece to be in fastening connection with the prestress rope and enabling the mounting plate and the clamping piece of the frame of the photovoltaic module to be in fastening connection.

Description

Connecting device and photovoltaic array

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a connecting device and a photovoltaic array.

Background

In the prior art, flexible photovoltaic arrays typically include photovoltaic modules, pre-stressing cables, and other components. In the actual installation process, the frame of the photovoltaic module is connected with the prestressed cable through the connecting component. Specifically, the base is connected with the frame through bolts, the prestressed cable is located between the base and the pressing sheet, and the base is connected with the pressing sheet.

However, in the actual installation process, the base and the pressing piece are easy to be connected in a loose manner. At this time, the connection between the connecting component and the prestressed cable is unstable, so that the connection between the photovoltaic component and the prestressed cable is unstable.

Disclosure of Invention

The utility model aims to provide a connecting device and a photovoltaic array, which are used for improving the connection firmness of a connecting assembly and a prestressed cable, and further improving the connection firmness of the photovoltaic assembly and the prestressed cable.

In order to achieve the above object, in a first aspect, the present utility model provides a connecting device for fixing a photovoltaic module to a pre-stressing cable. The above-mentioned connecting device includes: a clamping member and a fastener. The clamping piece comprises a base plate, a first arc plate and a second arc plate which are sequentially connected. The base plate and the second arc plate are oppositely arranged, and the first arc plate is provided with an accommodating space which is used for accommodating the prestressed cable. The central angle of the second arc plate deviates from the base plate, and the first arc plate and the second arc plate are provided with internal common tangent lines. The fastener penetrates through the base plate and the second arc plate and is used for simultaneously enabling the clamping piece to be in fastening connection with the prestress rope and enabling the mounting plate and the clamping piece of the frame of the photovoltaic module to be in fastening connection.

Compared with the prior art, in the connecting device provided by the utility model, the prestressed cable is generally of a cylindrical structure, and the first arc plate can be better attached to the prestressed cable. Based on this, the firm degree of connection of the connecting device and the prestressed cable can be improved. Further, because the central angle of the second circular arc plate deviates from the base plate, at the moment, after the prestressed cable is positioned in the accommodating space, the distance between the base plate and the second circular arc plate is convenient to reduce in actual assembly, so that the assembly difficulty of the connecting device and the prestressed cable is reduced, and the assembly time is saved. Still further, because first circular arc board and second circular arc board have interior public tangent line, can reduce or eliminate the probability that the second circular arc board warp this moment to guarantee the grip between holder and the prestressing force cable, make the holder more easily press from both sides tight prestressing force cable, improve connecting device and prestressing force cable connection's fastness, and then improve photovoltaic module and prestressing force cable connection's fastness. In addition, since the fastener is used for simultaneously fastening the clamp to the pre-stressing cable and fastening the mounting plate provided in the frame to the clamp. The assembling mode is simple and convenient, the connecting device and the prestressed cable can be assembled rapidly, and compared with the prior art, the assembling efficiency is improved.

In one implementation, the connection device further includes: and (5) cushion blocks. The cushion block is in butt joint with the second circular arc plate, and the second circular arc plate is located between cushion block and the base plate, and the fastener runs through base plate, second circular arc plate and cushion.

Under the condition of adopting the technical scheme, when the connecting device is in an assembled state, the cushion block is positioned below the second arc plate. In the process that the fastener penetrates through the connecting substrate and the cushion block, the cushion block provides upward acting force for the second circular arc plate. At this time, under the combined action of the cushion block and the fastener, the distance between the second circular arc plate and the base plate can be further reduced, so that the connection firmness of the connecting device and the prestressed cable is improved.

In one implementation, the projection of the side surface of the pad includes an arc segment, and the radius of the arc segment is smaller than the radius of the second arc plate.

Under the condition of adopting the technical scheme, the cushion block can be better abutted with the second circular arc plate so as to provide upward acting force for the second circular arc plate by the cushion block, and further improve the connection firmness of the connecting device and the prestressed cable.

In one implementation, the cushion block has a first surface and a second surface opposite to each other, the first surface is abutted against the second circular arc plate, the fastener is arranged on the second surface, and the fastener is attached to the second surface.

Under the condition of adopting the technical scheme, because the fastener is attached to the second surface, the stress of the fastener can be more uniform at the moment, so that the fastening force of the fastener to the clamping piece and the cushion block is improved, the clamping piece further clamps the prestressed cable, and the connection firmness of the connecting device and the prestressed cable is improved.

In one implementation, the radius of the pad is greater than or equal to 9 millimeters and less than or equal to 12 millimeters.

In one implementation, the connection device further includes: at least one set of limiting members. The locating part sets up in the base plate, and every group locating part all has spacing space, and every spacing space is used for holding the mounting panel that the joint frame had, and locating part and fastener are along the length direction distribution of perpendicular holder.

Under the condition of adopting the technical scheme, when the connecting device is positioned at two adjacent frames, and the plurality of groups of limiting parts are respectively positioned at the left side and the right side of the substrate, the plurality of groups of limiting parts can be used for connecting and fixing the two frames, namely, one connecting device can be fixedly connected with the two frames at the same time, so that the cost is saved. Further, if the number of the limiting parts used for being connected and fixed with each frame in the connecting device is greater than 1 group, at this time, the connection firmness of the frames and the connecting device can be improved, so as to ensure the safety of the photovoltaic array.

When the connecting device is only used for connecting and fixing one frame, and all limiting pieces are connected with the frame, the firmness of connection between the frame and the connecting device can be improved at the moment, so that the safety of the photovoltaic array is ensured. Further, if a group of limiting members in the connecting device are aged or damaged, the remaining limiting members can be normally used to ensure the stability and firmness of the connection between the connecting device and the frame.

Of course, when the connecting device is only used for connecting and fixing one frame, and the two groups of limiting pieces are respectively positioned at the left side and the right side of the substrate, the two groups of limiting pieces can be connected with the frame only by the limiting piece close to one side of the frame. At this time, this type of connection device uses a scene including connecting the frames located at the edge positions and connecting the adjacent two frames.

In summary, the number of the limiting members can be set according to practical situations, so that the connecting device is adapted to different application scenarios, and the application range of the connecting device is further enlarged.

In one implementation, each set of limiters includes: and a baffle. The baffle sets up in the base plate, and two baffles interval sets up, has spacing space between two baffles.

Under the condition of adopting the technical scheme, the limiting part is simple in structure, easy to manufacture, easy to assemble and use, and improves the working efficiency.

In one implementation, the two baffles are offset and/or the two baffles are disposed directly opposite.

Under the condition of adopting the technical scheme, when two baffles are oppositely arranged, the stress on two sides of the frame is balanced, and at the moment, the stability and the firmness of the connection of the connecting device and the frame can be further ensured. Further, when two baffles are arranged in a staggered mode, the two baffles can be formed by processing the same plate, and processing difficulty is reduced.

In summary, the relative positional relationship between the two baffles can be set according to actual situations, so that the fixing structure is adapted to different application scenarios, and the application range of the connecting device is further enlarged.

In one implementation, the height of the baffle is greater than or equal to 5 millimeters and less than or equal to 20 millimeters, and the height direction of the baffle is perpendicular to the length direction of the clip.

In a second aspect, the utility model also provides a connecting device for fixing the photovoltaic module on the prestressed cable. The above-mentioned connecting device includes: clamping member, locking member and fastener. The clamping piece comprises a base plate, a first arc plate and a second arc plate which are sequentially connected. The base plate and the second arc plate are oppositely arranged, and the first arc plate is provided with an accommodating space which is used for accommodating the prestressed cable. The central angle of the second arc plate deviates from the base plate, and the first arc plate and the second arc plate are provided with internal common tangent lines. The locking piece penetrates through the base plate and the second circular arc plate and is used for fastening the clamping piece so that the clamping piece is fastened and connected with the prestress rope. The fastener sets up in the base plate, and is located one side of retaining member for make mounting panel and the clamping piece fastening connection that photovoltaic module's frame had.

Compared with the prior art, in the connecting device provided by the utility model, the prestressed cable is generally of a cylindrical structure, and the first arc plate can be better attached to the prestressed cable. Based on this, the firm degree of connection of the connecting device and the prestressed cable can be improved. Further, because the central angle of the second circular arc plate deviates from the base plate, at the moment, after the prestressed cable is positioned in the accommodating space, the distance between the base plate and the second circular arc plate is convenient to reduce in actual assembly, so that the assembly difficulty of the connecting device and the prestressed cable is reduced, and the assembly time is saved. Still further, because first circular arc board and second circular arc board have interior public tangent line, can reduce or eliminate the probability that the second circular arc board warp this moment to guarantee the grip between holder and the prestressing force cable, make the holder more easily press from both sides tight prestressing force cable, improve connecting device and prestressing force cable connection's fastness, and then improve photovoltaic module and prestressing force cable connection's fastness. Furthermore, since the locking member is used to fasten the clamping member to the pre-stressing cable. The fastener is used for fastening and connecting the mounting plate and the clamping piece of the frame. The assembling mode is simple and convenient, the connecting device and the prestressed cable can be assembled rapidly, and compared with the prior art, the assembling efficiency is improved.

In one implementation, the connection device further includes: and (5) cushion blocks. The cushion block is in butt joint with the second circular arc plate, and the second circular arc plate is located between cushion block and the base plate, and the retaining member runs through base plate, second circular arc plate and cushion.

Under the condition of adopting the technical scheme, when the connecting device is in an assembled state, the cushion block is positioned below the second arc plate. In the process that the locking piece penetrates through the connecting substrate and the cushion block, the cushion block provides upward acting force for the second arc plate. At this time, under the combined action of the cushion block and the fastener, the distance between the second circular arc plate and the base plate can be further reduced, so that the connection firmness of the connecting device and the prestressed cable is improved.

In one implementation manner, the cushion block is provided with a first surface and a second surface which are opposite, the first surface is abutted with the second arc plate, the locking piece is arranged on the second surface, and the locking piece is attached to the second surface.

Under the condition of adopting the technical scheme, because the locking piece is attached to the second surface, the stress of the locking piece can be more uniform at the moment, so that the fastening force of the locking piece to the clamping piece and the cushion block is improved, the clamping piece further clamps the prestressed cable, and the connection firmness of the connecting device and the prestressed cable is improved.

In one implementation, the connection device further includes: at least one set of limiting members. The locating part sets up in the base plate, and every group locating part all has spacing space, and every spacing space is used for holding the mounting panel that the joint frame had. The limiting piece and the fastening piece are distributed along the length direction of the vertical clamping piece, and the locking piece is located on one side of the limiting piece.

In one implementation, the minimum distance between the base plate and the second circular arc plate is greater than or equal to 10 millimeters and less than or equal to 20 millimeters.

Under the condition of adopting the technical scheme, as the minimum distance between the base plate and the second circular arc plate is more than or equal to 10 mm, the problem that the prestressed cable cannot enter the accommodating space through the opening between the base plate and the second circular arc plate due to the too small minimum distance can be avoided, so that the assembling difficulty of the connecting device and the prestressed cable is reduced, and the assembling time is saved. Further, since the minimum distance between the substrate and the second circular arc plate is less than or equal to 20 mm, it is possible to prevent the disappearance of the internal common tangent line of the first circular arc plate and the second circular arc plate due to the excessively large minimum distance, thereby ensuring the quality of the second circular arc plate. Meanwhile, the difficulty in fastening the base plate and the second arc plate by the later-stage fastener can be reduced, and the assembly efficiency is improved.

In one implementation, the substrate and the second circular arc plate form a flare-shaped opening.

Under the condition of adopting the technical scheme, along the direction of keeping away from first circular arc board, the opening of horn mouth shape increases gradually. In the actual use process, the prestressed cable is aligned with the larger opening end, and the prestressed cable can enter the accommodating space through the opening. Based on this, can reduce connecting device and prestressing force cable's equipment degree of difficulty, save the equipment time.

In one implementation, the radius of the second arc plate is smaller than or equal to the radius of the first arc plate.

Under the condition of adopting the technical scheme, the length of the internal common tangent line of the first arc plate and the second arc plate can be increased, so that the holding length is increased, more prestressed cables are wrapped and fixed by the first arc plate, and the firmness of connection of the connecting device and the prestressed cables is improved. Further, not only the size of the connecting device can be optimized, so that the connecting device is more compact in structure. Meanwhile, the utilization rate of materials can be improved, and the material cost for manufacturing the connecting device is reduced.

In one implementation manner, the substrate has a bearing surface, the bearing surface is used for contacting with a mounting plate of the frame, and the bearing surface is a plane or has anti-skid patterns.

Under the condition of adopting the technical scheme, compared with the condition that the bearing surface is an arc surface or an inclined surface, the bearing surface adopting the planar design can increase the contact area between the bearing surface and the mounting plate so as to improve the stability of the frame. Further, when the bearing surface has anti-skidding patterns, the probability of the frame moving relative to the substrate can be reduced or eliminated, so that the stability and the safety of the frame are ensured, and the stability of the photovoltaic array is further ensured.

In one implementation, the clamping member is integrally formed.

Under the condition of adopting the technical scheme, the risk of disassembly of the clamping piece in the actual use process caused by the fact that the base plate, the first arc plate and the second arc plate are fixed together in a bonding or welding mode and the like can be reduced. Further, when the clamping member is integrally formed, the clamping member does not need to be assembled again before actual use. At this time, not only can the occurrence of deformation and the like of the clamping member due to the assembly modes such as welding, threaded connection and the like be prevented, but also the assembly error of the clamping member can be reduced or eliminated. Meanwhile, when the integrated clamping piece is adopted, the assembly error of the clamping piece is reduced or eliminated, so that the relative positions of all parts of the clamping piece do not need to be adjusted, the adjustment time is saved, and the working efficiency is improved. Still further, because frame and prestressing force cable all are connected with the holder, can ensure the angle that frame and prestressing force cable set up with the holder this moment, the position all accords with actual requirement, reduces the assembly error.

In one implementation, the radius of the first circular arc plate is greater than or equal to 9 millimeters and less than or equal to 12 millimeters.

In a third aspect, the utility model also provides a photovoltaic array. The photovoltaic array includes: photovoltaic module, prestressing force cable and connecting device. The photovoltaic module comprises a laminated piece and a frame arranged around the laminated piece, wherein the frame is provided with a mounting plate. The prestressing cables are used for carrying the photovoltaic modules. The connecting device is the connecting device of the first aspect; and/or, the connecting device of the second aspect; the connecting device is used for fixing the frame on the prestressed cable.

The beneficial effects of the photovoltaic array provided by the utility model are the same as those of the connecting device in the first aspect and/or the second aspect, and are not described in detail herein.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of an assembly of a prior art connection assembly, a prestressed cable and a frame;

FIG. 2 is a schematic diagram illustrating an assembly of a first type of connecting device and a pre-stressing cable according to an embodiment of the present utility model;

FIG. 3 is a second schematic illustration of the assembly of a first attachment device and a pre-stressing cable according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating an assembly of a first connecting device, a prestressed cable and a frame according to an embodiment of the present utility model;

FIG. 5 is a second schematic diagram illustrating the assembly of the first connecting device, the pre-stressing cable and the frame according to the embodiment of the present utility model;

FIG. 6 is a third schematic illustration of the assembly of a first attachment device and a pre-stressing cable according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram showing an assembly of a first type of connecting device and a pre-stressing cable according to an embodiment of the present utility model;

FIG. 8 is a third schematic view illustrating the assembly of the first connecting device, the pre-stressing cable and the frame according to the embodiment of the present utility model;

FIG. 9 is a schematic diagram showing an assembly of a first type of connection device, a pre-stressing cable and a frame according to an embodiment of the present utility model;

FIG. 10 is a schematic illustration showing an assembly of a second type of attachment device and a pre-stressing cable according to an embodiment of the present utility model;

FIG. 11 is a second schematic illustration of an assembly of a second attachment device and a pre-stressing cable according to an embodiment of the present utility model;

FIG. 12 is a schematic illustration showing an assembly of a second type of connection device, a pre-stressing cable and a frame according to an embodiment of the present utility model;

FIG. 13 is a second schematic view illustrating assembly of a second type of connection device, a pre-stressing cable and a frame according to an embodiment of the present utility model;

FIG. 14 is a third schematic view illustrating the assembly of a second type of connection device, a pre-stressing cable and a frame according to an embodiment of the present utility model;

FIG. 15 is a fourth schematic diagram illustrating an assembly of a second type of connection device, a pre-stressing cable and a frame according to an embodiment of the present utility model;

fig. 16 is an assembled schematic view of a photovoltaic module, a connecting device and a pre-stressing cable according to an embodiment of the utility model.

Reference numerals:

1-frame, 10-mounting plate, 2-prestressed cable,

3-connection assembly, 30-base, 31-bolt,

32-press sheet, 4-connecting device, 40-clamping piece,

400-substrate, 401-first circular arc plate, 402-second circular arc plate,

41-fasteners, 42-internal common tangents, 43-spacers,

44-a limiting piece, 440-a baffle plate, 441-a first baffle plate,

442-second baffle, 45-retaining member, 5-photovoltaic module.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The large-span cable-pole structure support (flexible support) is applied in a large scale in a photovoltaic project, can adapt to various application scenes, and has the advantages of high land utilization rate and high construction speed. The large-span cable-pole structure bracket at the present stage mainly comprises an end anchoring system, a cable stress system, a middle bracket system and a transverse stabilizing system. The end anchoring system consists of an end anchor, a bearing platform, a diagonal draw bar and an end upright post, the cable stress system consists of a prestressed cable and a cable stay bar, the middle support system consists of a middle upright post and an upright post support, and the transverse stabilizing system consists of a transverse stay bar/truss, a guy cable and a ground anchor. At present, 2 ropes or 3 ropes are often used in most forms, 2 ropes are stronger in terrain adaptation capability and lower in price, and 3 ropes are high in clearance and flexible in lower space utilization.

In the prior art, flexible photovoltaic arrays typically include photovoltaic modules, pre-stressing cables, and other components. In the actual installation process, the frame of the photovoltaic module is connected with the prestressed cable through the connecting component. Specifically, referring to fig. 1, the base 30 is connected to the frame 1 by bolts 31, the pre-stressing cables 2 are located between the base 30 and the press sheet 32, and the base 30 is connected to the press sheet 32.

However, during actual installation, the base 30 and the press piece 32 are prone to poor connection. At this time, the connection between the connection component 3 and the prestressed cable 2 is not firm, so that the connection between the photovoltaic component 5 and the prestressed cable 2 is not firm.

In order to solve the above technical problems, in a first aspect, an embodiment of the present utility model provides a connection device for fixing a photovoltaic module on a prestressed cable. Referring to fig. 2 to 5, the above-mentioned connection device includes: a clamp 40 and a fastener 41. The holder 40 includes a base plate 400, a first circular arc plate 401, and a second circular arc plate 402, which are sequentially connected. The base plate 400 and the second circular arc plate 402 are disposed opposite to each other, and the first circular arc plate 401 has an accommodating space for accommodating the pre-stressing cable 2. The central angle of the second circular arc plate 402 is away from the base plate 400, and the first circular arc plate 401 and the second circular arc plate 402 have an internal common tangent 42. The fastener 41 penetrates the base plate 400 and the second circular arc plate 402, and is used for simultaneously fastening and connecting the clamping member 40 and the prestressing cable 2, and fastening and connecting the mounting plate 10 and the clamping member 40 of the frame 1 of the photovoltaic module. The frame here is a frame in a broad sense, and may be a frame provided on the edge of the laminate, or may be a frame provided on the back of the laminate. The frame may have a mounting plate described below.

The fastening piece can be bolts, rivets, blind rivets and the like, and the number of the fastening piece can be selected according to the size of wind load.

Referring to fig. 2 to 5, in the connecting device 4 provided in the embodiment of the present utility model, since the prestressed cable 2 is generally in a cylindrical structure, the first circular arc plate 401 can better fit the prestressed cable 2. Based on this, the degree of firmness of the connection of the connecting device 4 with the pre-stressing cable 2 can be increased. Further, since the central angle of the second circular arc plate 402 deviates from the base plate 400, at this time, after the prestressed cable 2 is located in the accommodating space, the distance between the base plate 400 and the second circular arc plate 402 is convenient to be reduced during actual assembly, so as to reduce the assembly difficulty of the connecting device 4 and the prestressed cable 2, and save the assembly time. Still further, since the first arc plate 401 and the second arc plate 402 have the internal common tangent 42, the probability of deformation of the second arc plate 402 can be reduced or eliminated at this time, so as to ensure the grip between the clamping member 40 and the prestressed cable 2, so that the clamping member 40 is easier to clamp the prestressed cable 2, the connection firmness of the connecting device 4 and the prestressed cable 2 is improved, and the connection firmness of the photovoltaic module 5 and the prestressed cable 2 is further improved. Further, since the fastener 41 is used to simultaneously fasten the clamp 40 to the pre-stressing cable 2 and fasten the mounting plate 10 and the clamp 40 provided in the frame 1. The assembling mode is simple and convenient, the connecting device 4 and the prestressed cable 2 can be assembled rapidly, and compared with the prior art, the assembling efficiency is improved.

As one possible implementation, the material of the clamping member and the material of the fastening member include, but are not limited to, high carbon steel, spring steel, stainless steel, galvanized steel, or galvanized aluminum magnesium steel. At this time, compared with the case of using aluminum materials, the strength and quality of the steel clamp (or the steel fastener) are superior to those of the aluminum clamp (or the aluminum fastener) in the case of using the same amount of raw materials (i.e., aluminum or steel). Further, in order to overcome the problem that the yield strength of aluminum materials is low, the structural strength of aluminum clamping members (or aluminum fasteners) is not in line with the actual needs in the prior art, the use amount of aluminum materials for single clamping members (or fasteners) is generally greatly increased. However, the steel clamping member (or the steel fastener) provided by the embodiment of the utility model has the advantages that the yield strength of the steel material is higher than that of the aluminum material, and the unit price of the steel material is lower than that of the aluminum material. Accordingly, embodiments of the present utility model provide a steel clamp (or steel fastener) that is less costly than an aluminum clamp (or aluminum fastener). Still further, aluminum clamps (or aluminum fasteners) of the prior art are typically manufactured using a casting process, while steel clamps (or steel fasteners) provided by embodiments of the present utility model are formed by bending profiles. Therefore, compared with the prior art, the steel clamping piece (or the steel fastener) provided by the embodiment of the utility model has the advantages of simple manufacturing process and lower cost. In addition, when the material of holder and fastener adopts the same material preparation to form, can reduce the mutual influence between the different materials, avoid holder or fastener to be corroded, improve the life of holder and fastener, and then improve connecting device's quality. Based on this, can solve among the prior art because of the inconsistent preparation material of preforming and base, lead to the problem that preforming and base corrode. It will be appreciated that annealing is required to make clamps or fasteners from high carbon steel and stainless steel.

As a possible implementation, referring to fig. 2, the clamping member 40 is manufactured by cutting, rolling, stamping, etc. a steel plate. Further, the length L and the thickness of the clamping member 40 may be set according to actual needs, so long as the wind pressure resistance requirement can be satisfied. Illustratively, the length L of the clamping member 40 is greater than or equal to 70 millimeters and less than or equal to 100 millimeters. For example, the length L may be 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, or the like. The thickness of the clamping member 40 is greater than or equal to 0.5 mm and less than or equal to 2 mm. For example, the thickness may be 0.5 mm, 0.8 mm, 1 mm, 1.3 mm, 1.5 mm, 1.6 mm, 2 mm, or the like.

As a possible implementation, referring to fig. 2 to 5, the above-mentioned clamping member 40 is integrally formed. At this time, the risk of the clip 40 being disassembled during actual use due to the substrate 400, the first circular arc plate 401, and the second circular arc plate 402 being fixed together by bonding or welding, or the like, can be reduced. Further, when the clamping member 40 is integrally formed, the clamping member 40 does not need to be assembled again before actual use. In this case, not only the occurrence of deformation or the like of the clip 40 due to the assembly method such as welding or screwing can be prevented, but also the assembly error of the clip 40 can be reduced or eliminated. Meanwhile, when the integral clamping piece 40 is adopted, the assembly error of the clamping piece 40 is reduced or eliminated, so that the relative positions of all parts of the clamping piece 40 do not need to be adjusted, the adjustment time is saved, and the working efficiency is improved. Still further, because frame 1 and prestressing cable 2 all are connected with clamping piece 40, can ensure the angle that frame 1 and prestressing cable 2 set up with clamping piece 40 this moment, and the position all accords with actual requirement, reduces the assembly error.

As one possible implementation manner, the minimum distance between the substrate and the second circular arc plate is greater than or equal to 10 mm and less than or equal to 20 mm. The minimum distance between the substrate and the second circular arc plate refers to a distance at which the substrate is located closest to the second circular arc plate. For example, the position where the second circular arc plate protrudes toward the substrate. For example, the minimum distance may be 10 millimeters, 12 millimeters, 13 millimeters, 14 millimeters, 16 millimeters, 18 millimeters, 20 millimeters, or the like.

Under the condition of adopting the technical scheme, referring to fig. 2 and 3, since the minimum distance between the base plate 400 and the second circular arc plate 402 is greater than or equal to 10 mm, the problem that the prestressed cable 2 cannot enter the accommodating space through the opening between the base plate 400 and the second circular arc plate 402 due to the too small minimum distance can be avoided, so that the assembling difficulty of the connecting device 4 and the prestressed cable 2 is reduced, and the assembling time is saved. Further, since the minimum distance between the substrate 400 and the second circular arc plate 402 is less than or equal to 20 mm, it is possible to prevent the disappearance of the internal common tangent 42 of the first circular arc plate 401 and the second circular arc plate 402 due to the excessively large minimum distance, thereby ensuring the quality of the second circular arc plate 402. Meanwhile, the difficulty of fastening the base plate 400 and the second arc plate 402 by the later-stage fastener 41 can be reduced, and the assembly efficiency can be improved.

As a possible implementation, referring to fig. 2 and 3, the base plate 400 and the second circular arc plate 402 form a horn-shaped opening.

With the above technical solution, the horn mouth-shaped opening gradually increases along the direction away from the first circular arc plate 401. In the actual use process, the prestressed cable 2 is aligned with the larger opening end, and the prestressed cable 2 is facilitated to enter the accommodating space through the opening. Based on this, the assembly difficulty of the connecting device 4 and the prestressed cable 2 can be reduced, and the assembly time can be saved.

As a possible implementation, referring to fig. 2, the radius of the second circular arc plate 402 is smaller than or equal to the radius of the first circular arc plate 401.

At this time, the lengths of the internal common tangent lines 42 of the first arc plate 401 and the second arc plate 402 may be increased, so as to increase the wrapping length, so that the first arc plate 401 wraps and fixes more prestressed cables 2, and further improve the connection firmness between the connecting device 4 and the prestressed cables 2. Further, not only the size of the connecting device 4 can be optimized, so that the connecting device 4 is more compact. At the same time, the utilization rate of the material can be improved, and the material cost for manufacturing the connecting device 4 can be reduced.

In one alternative, the radius of the first circular arc plate is greater than or equal to 9 mm and less than or equal to 12 mm. For example, the radius may be 9 millimeters, 9.5 millimeters, 9.8 millimeters, 10 millimeters, 10.5 millimeters, 11 millimeters, 12 millimeters, or the like.

As a possible implementation, referring to fig. 2 to 5, the substrate 400 has a bearing surface for contacting the mounting board 10 of the frame 1, where the bearing surface is a plane or has anti-skid patterns.

Compared with the case that the bearing surface is an arc surface or an inclined surface, the bearing surface adopting the planar design can increase the contact area between the bearing surface and the mounting plate 10 so as to improve the stability of the frame 1. Further, when the bearing surface has anti-skid patterns, the probability of the frame 1 moving relative to the substrate 400 can be reduced or eliminated, so as to ensure the stability and safety of the frame 1, and further ensure the stability of the photovoltaic array.

As a possible implementation, referring to fig. 2 to 5, the above-mentioned connection device 4 further comprises: and a pad 43. The spacer 43 abuts against the second circular arc plate 402, the second circular arc plate 402 is located between the spacer 43 and the base plate 400, and the fastener 41 penetrates through the base plate 400, the second circular arc plate 402 and the spacer 43.

With the above-described solution, the spacer 43 is located below the second circular arc plate 402 when the connecting device 4 is in the assembled state. The spacer 43 provides an upward force to the second circular arc plate 402 during the passage of the fastener 41 through the connection base 400 and the spacer 43. At this time, the distance between the second circular arc plate 402 and the base plate 400 can be further reduced under the combined action of the cushion block 43 and the fastener 41, so as to improve the connection firmness of the connecting device 4 and the prestressed cable 2.

In an alternative, referring to fig. 2 to 5, the projection of the side surface of the pad 43 includes an arc segment having a radius smaller than that of the second arc plate 402. At this time, the cushion block 43 may better abut against the second circular arc plate 402, so that the cushion block 43 provides an upward acting force for the second circular arc plate 402, and further, the connection firmness of the connection device 4 and the prestressed cable 2 is improved.

Illustratively, the radius of the pad is greater than or equal to 9 millimeters and less than or equal to 12 millimeters. For example, the radius of the pad may be 9 mm, 9.5 mm, 9.8 mm, 10 mm, 10.5 mm, 11 mm, 12 mm, etc. The length of the spacer may be determined according to factors such as the length of the clip or the number of fasteners, which are not particularly limited herein.

The shapes of the cushion blocks described above are varied and the following description is given by way of example of two possible cases, it being understood that the following description is for understanding only and is not intended to be limiting in any way.

Example one: the whole cushion block is semi-cylindrical, and the length of the cushion block (namely the height of the cylinder) is equal to the length of the clamping piece. For example, the semi-cylindrical spacer has a radius of 9 mm and a length of 20 mm (the length direction of the spacer is parallel to the length direction of the clamp). When in actual use, the cambered surface of the semi-cylindrical cushion block is abutted with the second circular arc plate.

Example two: the whole cushion block is hemispherical. When in actual use, the cambered surface of the hemispherical cushion block is abutted with the second arc plate.

In an alternative, referring to fig. 2 to 5, the pad 43 has a first surface and a second surface opposite to each other, the first surface abuts against the second circular arc plate 402, the fastener 41 is disposed on the second surface, and the fastener 41 is attached to the second surface.

Because the fastener 41 is attached to the second surface, the force applied to the fastener 41 can be more uniform at this time, so as to improve the fastening force of the fastener 41 to the clamping member 40 and the cushion block 43, so that the clamping member 40 further clamps the prestressed cable 2, and further improve the connection firmness of the connecting device 4 and the prestressed cable 2. Illustratively, the cushion block 43 is integrally formed in a semi-cylindrical shape, the fastener 41 is attached to a plane of the semi-cylindrical cushion block, and an arc surface of the semi-cylindrical cushion block abuts against the second arc plate 402.

In one alternative, the material of the pad includes, but is not limited to, stainless steel or galvanized steel. When the material of holder, fastener and cushion adopts the same material preparation to form, can reduce the mutual influence between the different materials, avoid holder or fastener or cushion to be corroded, improve holder, fastener and cushion's life, and then improve connecting device's quality.

As a possible implementation, referring to fig. 2 to 9, the above-mentioned connection device 4 further comprises: at least one set of stop members 44. The limiting members 44 are disposed on the base plate 400, each set of limiting members 44 has a limiting space, each limiting space is used for accommodating the mounting plate 10 of the clamping frame 1, and the limiting members 44 and the fastening members 41 are distributed along the length direction of the vertical clamping member 40 (i.e. the direction a in fig. 2).

Under the condition of adopting the technical scheme, when the connecting device 4 is positioned at two adjacent frames 1, and the plurality of groups of limiting components 44 are respectively positioned at the left side and the right side of the substrate 400, the plurality of groups of limiting components 44 can be used for connecting and fixing the two frames 1, namely, one connecting device 4 can be simultaneously and fixedly connected with the two frames 1, so that the cost is saved. Further, if the number of the limiting members 44 used for connecting and fixing each frame 1 in the connecting device 4 is greater than 1 group, at this time, the connection firmness between the frame 1 and the connecting device 4 can be improved, so as to ensure the safety of the photovoltaic array.

When the connecting device 4 is only used for connecting and fixing one frame 1, and all the limiting members 44 are connected with the frame 1, the connection firmness between the frame 1 and the connecting device 4 can be improved at this time, so as to ensure the safety of the photovoltaic array. Further, if one set of the limiting members 44 in the connecting device 4 is aged or damaged, the remaining limiting members 44 can be used normally to ensure the stability and firmness of the connection between the connecting device 4 and the frame 1.

Of course, when the connecting device 4 is only used for connecting and fixing one frame 1, and the two sets of limiting members 44 are respectively located on the left side and the right side of the substrate 400, the two sets of limiting members 44 near one side of the frame 1 may be connected with the frame 1. At this time, this type of connection device 4 uses a scene including connecting the rims 1 located at the edge positions and connecting the adjacent two rims 1.

In summary, the number of the limiting members 44 can be set according to practical situations, so that the connecting device 4 is adapted to different application scenarios, and the application range thereof is further enlarged.

In one alternative, referring to fig. 2 and 3, each set of stops 44 includes: a baffle 440. The baffles 440 are disposed on the substrate 400, two baffles 440 are disposed at intervals, and a spacing space is provided between the two baffles 440. The limiting piece 44 is simple in structure, easy to manufacture, easy to assemble and use, and improves working efficiency.

In an alternative, the two baffles are arranged offset and/or the two baffles are arranged opposite to each other.

When two baffles are oppositely arranged, the stress on two sides of the frame is balanced, and at the moment, the stability and the firmness of the connection between the connecting device and the frame can be further ensured. Further, when two baffles are arranged in a staggered mode, the two baffles can be formed by processing the same plate, and processing difficulty is reduced.

For example, when the dimensions of the two baffles are identical, the offset arrangement means that the projections of the two baffles on the vertical plane are only partially coincident, and the facing arrangement means that the projections of the two baffles on the vertical plane are fully coincident.

In an alternative manner, during actual use, referring to fig. 2 to 9, the height of the baffle 440 (for convenience of description, simply referred to as the first baffle 441) located directly below the photovoltaic module 5 is smaller than or equal to the distance between the photovoltaic module 5 and the substrate 400, so as to avoid the first baffle 441 damaging the photovoltaic module 5 due to excessive height. The height of the baffle 440 (for convenience of description, abbreviated as the second baffle 442) located at the edge position of the photovoltaic module 5 may be set according to practical situations, and is not particularly limited herein.

For example, referring to fig. 2 to 9, the height H1 of the first baffle 441 is greater than or equal to 5 mm and less than or equal to 10 mm. For example, the height may be 5 mm, 6 mm, 7 mm, 8 mm, 8.5 mm, 9 mm, 10 mm, or the like. The height H2 of the second baffle 442 is greater than or equal to 5 millimeters and less than or equal to 20 millimeters. For example, the height may be 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, or the like. The height direction of the first baffle plate and the height direction of the second baffle plate are perpendicular to the length direction of the clamping piece.

In an alternative way, the baffle plate has an arc section at the bending position relative to the substrate, and the radius of the arc section is smaller than 1mm, so that the frame is convenient to be attached to the substrate.

In a second aspect, an embodiment of the present utility model further provides a connection device for fixing a frame to a prestressed cable. Referring to fig. 10 to 15, the above-mentioned connection device includes: a clamp 40, a lock 45 and a fastener 41. The holder 40 includes a base plate 400, a first circular arc plate 401, and a second circular arc plate 402, which are sequentially connected. The base plate 400 and the second circular arc plate 402 are disposed opposite to each other, and the first circular arc plate 401 has an accommodating space for accommodating the pre-stressing cable 2. The central angle of the second circular arc plate 402 is away from the base plate 400, and the first circular arc plate 401 and the second circular arc plate 402 have an internal common tangent 42. The locking member 45 penetrates the base plate 400 and the second circular arc plate 402, and is used for fastening the clamping member 40 so as to fasten the clamping member 40 to the prestressed cable 2. The fastening member 41 is disposed on the base 400 and located on one side of the locking member 45, and is used for fastening and connecting the mounting plate 10 and the clamping member 40 of the frame 1. The frame here is a frame in a broad sense, and may be a frame provided on the edge of the laminate, or may be a frame provided on the back of the laminate. The frame may have a mounting plate described below.

The fastening piece or the locking piece can be bolts, rivets, blind rivets and the like, and the number of the fastening piece or the locking piece can be selected according to the wind load.

Referring to fig. 10 to 15, in the connecting device 4 provided in the embodiment of the present utility model, since the prestressed cable 2 is generally in a cylindrical structure, the first circular arc plate 401 can better fit the prestressed cable 2. Based on this, the degree of firmness of the connection of the connecting device 4 with the pre-stressing cable 2 can be increased. Further, since the central angle of the second circular arc plate 402 deviates from the base plate 400, at this time, after the prestressed cable 2 is located in the accommodating space, the distance between the base plate 400 and the second circular arc plate 402 is convenient to be reduced during actual assembly, so as to reduce the assembly difficulty of the connecting device 4 and the prestressed cable 2, and save the assembly time. Still further, since the first arc plate 401 and the second arc plate 402 have the internal common tangent 42, the probability of deformation of the second arc plate 402 can be reduced or eliminated at this time, so as to ensure the grip between the clamping member 40 and the prestressed cable 2, so that the clamping member 40 is easier to clamp the prestressed cable 2, the connection firmness of the connecting device 4 and the prestressed cable 2 is improved, and the connection firmness of the photovoltaic module 5 and the prestressed cable 2 is further improved. Furthermore, since the locking member 45 is used to fasten the clamping member 40 to the pre-stressing cable 2. The fastener 41 is used to fasten the mounting plate 10 and the clip 40 of the frame 1. The assembling mode is simple and convenient, the connecting device 4 and the prestressed cable 2 can be assembled rapidly, and compared with the prior art, the assembling efficiency is improved.

It should be understood that the material of the clamping member, the material of the fastening member, and the manufacturing process, dimensions, etc. of the clamping member may be referred to in the description of the first aspect, and will not be described herein. Further, the material of the clamping piece, the material of the fastening piece and the material of the locking piece are the same.

As a possible implementation, referring to fig. 10 to 15, the above-mentioned clamping member 40 is integrally formed. At this time, the risk of the clip 40 being disassembled during actual use due to the substrate 400, the first circular arc plate 401, and the second circular arc plate 402 being fixed together by bonding or welding, etc. can be reduced. Further, when the clamping member 40 is integrally formed, the clamping member 40 does not need to be assembled again before actual use. In this case, not only the occurrence of deformation or the like of the clip 40 due to the assembly method such as welding or screwing can be prevented, but also the assembly error of the clip 40 can be reduced or eliminated. Meanwhile, when the integrated clamping piece is adopted, the assembly error of the clamping piece 40 is reduced or eliminated, so that the relative positions of the parts of the clamping piece 40 do not need to be adjusted, the adjustment time is saved, and the working efficiency is improved. Still further, because frame 1 and prestressing cable 2 all are connected with clamping piece 40, can ensure the angle that frame 1 and prestressing cable 2 set up with clamping piece 40 this moment, and the position all accords with actual requirement, reduces the assembly error.

Under the condition of adopting the technical scheme, referring to fig. 10 to 15, since the minimum distance between the base plate 400 and the second circular arc plate 402 is greater than or equal to 10 mm, the problem that the prestressed cable 2 cannot enter the accommodating space through the opening between the base plate 400 and the second circular arc plate 402 due to the too small minimum distance can be avoided, so that the assembling difficulty of the connecting device 4 and the prestressed cable 2 is reduced, and the assembling time is saved. Further, since the minimum distance between the substrate 400 and the second circular arc plate 402 is less than or equal to 20 mm, it is possible to prevent the disappearance of the internal common tangent 42 of the first circular arc plate 401 and the second circular arc plate 402 due to the excessively large minimum distance, thereby ensuring the quality of the second circular arc plate 402. Meanwhile, the difficulty of fastening the base plate 400 and the second arc plate 402 by the later-stage fastener 41 can be reduced, and the assembly efficiency can be improved.

As a possible implementation, referring to fig. 10 to 15, the base plate 400 and the second circular arc plate 402 form a horn-shaped opening.

As a possible implementation, referring to fig. 10 to 15, the radius of the second circular arc plate 402 is smaller than or equal to the radius of the first circular arc plate 401.

Under the condition of adopting the technical scheme, the length of the internal common tangent line 42 of the first arc plate 401 and the second arc plate 402 can be increased, so that the holding length is increased, the first arc plate 401 wraps and fixes more prestressed cables 2, and the firmness of connection of the connecting device 4 and the prestressed cables 2 is improved. Further, not only the size of the connecting device 4 can be optimized, so that the connecting device 4 is more compact. At the same time, the utilization rate of the material can be improved, and the material cost for manufacturing the connecting device 4 can be reduced.

As a possible implementation, referring to fig. 10 to 15, the substrate 400 has a bearing surface, which is used to contact the mounting board 10 of the frame 1, and the bearing surface is a plane or has anti-skid patterns.

Under the condition of adopting the technical scheme, compared with the condition that the bearing surface is an arc surface or an inclined surface, the bearing surface adopting the planar design can increase the contact area between the bearing surface and the mounting plate 10 so as to improve the stability of the frame 1. Further, when the bearing surface has anti-skid patterns, the probability of the frame 1 moving relative to the substrate 400 can be reduced or eliminated, so as to ensure the stability and safety of the frame 1, and further ensure the stability of the photovoltaic array.

As a possible implementation, referring to fig. 10 to 15, the above-mentioned connection device 4 further includes: and a pad 43. The cushion block 43 abuts against the second circular arc plate 402, the second circular arc plate 402 is located between the cushion block 43 and the base plate 400, and the locking member 45 penetrates through the base plate 400, the second circular arc plate 402 and the cushion block 43.

With the above-described solution, the spacer 43 is located below the second circular arc plate 402 when the connecting device 4 is in the assembled state. The spacer 43 provides an upward force to the second circular arc plate 402 during the process of penetrating the connection base 400 and the spacer 43 by the locking member 45. At this time, the distance between the second circular arc plate 402 and the base plate 400 can be further reduced under the combined action of the cushion block 43 and the fastener 41, so as to improve the connection firmness of the connecting device 4 and the prestressed cable 2.

In an alternative, referring to fig. 10 to 15, the projection of the side surface of the pad 43 includes an arc segment having a radius smaller than that of the second arc plate 402. At this time, the cushion block 43 may better abut against the second circular arc plate 402, so that the cushion block 43 provides an upward acting force for the second circular arc plate 402, and further, the connection firmness of the connection device 4 and the prestressed cable 2 is improved.

Illustratively, the radius of the pad is greater than or equal to 9 millimeters and less than or equal to 12 millimeters. For example, the radius may be 9 millimeters, 9.5 millimeters, 9.8 millimeters, 10 millimeters, 10.5 millimeters, 11 millimeters, 12 millimeters, or the like. The length of the spacer may be determined according to factors such as the length of the clip or the number of fasteners, which are not particularly limited herein.

In an alternative manner, referring to fig. 10 to 15, the pad 43 has a first surface and a second surface opposite to each other, the first surface abuts against the second circular arc plate 402, the locking member is disposed on the second surface, and the locking member is attached to the second surface.

Under the condition of adopting the technical scheme, because the locking piece is attached to the second surface, the stress of the locking piece can be more uniform at the moment, so that the fastening force of the locking piece to the clamping piece 40 and the cushion block 43 is improved, the clamping piece 40 further clamps the prestressed cable 2, and the connection firmness of the connecting device 4 and the prestressed cable 2 is improved. Illustratively, the cushion block 43 is integrally formed in a semi-cylindrical shape, and the locking member is attached to a plane of the semi-cylindrical cushion block, and an arc surface of the semi-cylindrical cushion block abuts against the second arc plate 402.

As a possible implementation, referring to fig. 10 to 15, the above-mentioned connection device 4 further includes: at least one set of stop members 44. The limiting members 44 are disposed on the base plate 400, and each set of limiting members 44 has a limiting space, and each limiting space is used for accommodating the mounting plate 10 of the clamping frame 1. The limiting member 44 and the fastening member 41 are distributed along the length direction of the vertical clamping member 40, and the locking member 45 is located at one side of the limiting member 44.

Under the condition of adopting the technical scheme, when the connecting device 4 is located at two adjacent frames 1, and the plurality of groups of limiting components 44 are respectively located at the left side and the right side of the substrate 400, the plurality of groups of limiting components 44 can be used for connecting and fixing the two frames 1, i.e. one connecting device 4 can be simultaneously and fixedly connected with the two frames 1, so that the cost is saved. Further, if the number of the limiting members 44 used for connecting and fixing each frame 1 in the connecting device 4 is greater than 1 group, at this time, the connection firmness between the frame 1 and the connecting device 4 can be improved, so as to ensure the safety of the photovoltaic array.

In one alternative, referring to fig. 10, each set of stops 44 includes: a baffle 440. The baffles 440 are disposed on the substrate 400, two baffles 440 are disposed at intervals, and a spacing space is provided between the two baffles 440. The limiting piece 44 is simple in structure, easy to manufacture, easy to assemble and use, and improves working efficiency.

In an alternative manner, referring to fig. 10 to 15, in actual use, the height of the baffle 440 (for convenience of description, simply referred to as the first baffle 441) located directly below the photovoltaic module 5 is smaller than or equal to the distance between the photovoltaic module 5 and the substrate 400, so as to avoid the first baffle 441 damaging the photovoltaic module 5 due to excessive height. The height of the baffle 440 (for convenience of description, abbreviated as the second baffle 442) located at the edge position of the photovoltaic module 5 may be set according to practical situations, and is not particularly limited herein.

For example, referring to fig. 10, the height H1 of the first baffle 441 is greater than or equal to 5 mm and less than or equal to 10 mm. For example, the height may be 5 mm, 6 mm, 7 mm, 8 mm, 8.5 mm, 9 mm, 10 mm, or the like. The height H2 of the second baffle 442 is greater than or equal to 5 millimeters and less than or equal to 20 millimeters. For example, the height may be 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, or the like. The height direction of the first baffle plate and the height direction of the second baffle plate are perpendicular to the length direction of the clamping piece.

In an alternative way, the bending part of the baffle plate relative to the substrate is provided with an arc section, and the radius of the arc section is smaller than 1mm, so that the frame can be attached to the substrate.

In a third aspect, embodiments of the present utility model further provide a photovoltaic array. Referring to fig. 16, the photovoltaic array includes: photovoltaic module 5, prestressing cable 2 and connecting device 4. The photovoltaic module 5 comprises a laminate and a frame 1 mounted around the laminate, the frame 1 having a mounting plate 10. The prestressing cables 2 are used for carrying photovoltaic modules 5. The connecting device 4 is the connecting device 4 according to the first aspect; and/or the connecting device 4 according to the second aspect, the connecting device 4 is used for fixing the frame 1 on the prestressed cable 2.

The beneficial effects of the photovoltaic array provided by the embodiment of the utility model are the same as those of the connecting device in the first aspect and/or the second aspect, and are not described herein.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present utility model, and the utility model should be covered. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The connecting device is characterized by being used for fixing the photovoltaic module on the prestress rope; the connecting device comprises:

the clamping piece comprises a substrate, a first arc plate and a second arc plate which are sequentially connected; the substrate and the second arc plate are oppositely arranged; the first arc plate is provided with an accommodating space which is used for accommodating the prestress rope; the central angle of the second arc plate deviates from the substrate, and the first arc plate and the second arc plate are provided with internal common tangent lines;

the fastener penetrates through the base plate and the second circular arc plate and is used for enabling the clamping piece to be in fastening connection with the prestress cable and enabling the mounting plate of the frame of the photovoltaic module to be in fastening connection with the clamping piece.

2. The connection device of claim 1, further comprising:

the cushion block is abutted with the second circular arc plate; the second arc plate is positioned between the cushion block and the base plate; the fastener penetrates through the base plate, the second arc plate and the cushion block.

3. The connection device of claim 2, wherein the projection of the side of the pad comprises an arc segment having a radius less than the radius of the second arc plate.

4. The connection device of claim 2, wherein the spacer has opposed first and second faces; the first surface is abutted with the second arc plate, the fastener is arranged on the second surface, and the fastener is attached to the second surface.

5. The connection device of claim 2, wherein the radius of the pad is greater than or equal to 9 millimeters and less than or equal to 12 millimeters.

6. The connection device according to any one of claims 1 to 5, further comprising:

the limiting pieces are arranged on the base plate, each group of limiting pieces is provided with a limiting space, and each limiting space is used for accommodating and clamping a mounting plate of the frame; the limiting parts and the fastening parts are distributed along the length direction perpendicular to the clamping parts.

7. The connection device of claim 6, wherein each set of the stop members comprises:

a baffle plate arranged on the substrate; the two baffles are arranged at intervals, and the limiting space is reserved between the two baffles.

8. The connection device of claim 7, wherein two of the baffles are offset and/or two of the baffles are disposed directly opposite.

9. The connection device of claim 7, wherein the height of the baffle is greater than or equal to 5 millimeters and less than or equal to 20 millimeters; the height direction of the baffle is perpendicular to the length direction of the clamping piece.

10. The connecting device is characterized by being used for fixing the photovoltaic module on the prestress rope; the connecting device comprises:

the locking piece penetrates through the base plate and the second circular arc plate and is used for fastening the clamping piece so as to enable the clamping piece to be in fastening connection with the prestress rope;

the fastener is arranged on the base plate and is positioned on one side of the locking piece; the clamping piece is used for enabling the mounting plate of the frame of the photovoltaic module to be in fastening connection with the clamping piece.

11. The connection device of claim 10, further comprising:

The cushion block is abutted with the second circular arc plate; the second arc plate is positioned between the cushion block and the base plate; the locking piece penetrates through the base plate, the second arc plate and the cushion block.

12. The connection device of claim 11, wherein the projection of the side of the pad includes an arc segment having a radius less than the radius of the second circular arc plate.

13. The connection device of claim 11, wherein the spacer has opposed first and second faces; the first surface is abutted with the second circular arc plate, the locking piece is arranged on the second surface, and the locking piece is attached to the second surface.

14. The connection device of claim 11, wherein the radius of the pad is greater than or equal to 9 millimeters and less than or equal to 12 millimeters.

15. The connection device according to any one of claims 10 to 14, further comprising:

the limiting pieces are arranged on the base plate, each group of limiting pieces is provided with a limiting space, and each limiting space is used for accommodating and clamping a mounting plate of the frame; the limiting piece and the fastening piece are distributed along the length direction perpendicular to the clamping piece; the locking piece is located on one side of the limiting piece.

16. The connection device of claim 15, wherein each set of the stop members comprises:

17. The connection device of claim 16, wherein two of the baffles are offset and/or two of the baffles are disposed directly opposite.

18. The connection device of claim 16, wherein the height of the baffle is greater than or equal to 5 millimeters and less than or equal to 20 millimeters; the height direction of the baffle is perpendicular to the length direction of the clamping piece.

19. The connection device of any one of claims 1-18, wherein a minimum distance between the base plate and the second circular arc plate is greater than or equal to 10 millimeters and less than or equal to 20 millimeters.

20. The connection device of any one of claims 1-18, wherein the base plate and the second circular arc plate form a flare-shaped opening.

21. The connection device of any one of claims 1-18, wherein the radius of the second circular arc plate is less than or equal to the radius of the first circular arc plate.

22. The connection device of any one of claims 1-18, wherein the base plate has a bearing surface for contacting a mounting plate provided by the bezel; the bearing surface is a plane or is provided with anti-skid patterns.

23. The connection device of any one of claims 1-18, wherein the clip is integrally formed.

24. The connection device of any one of claims 1-18, wherein the radius of the first circular arc plate is greater than or equal to 9 millimeters and less than or equal to 12 millimeters.

25. A photovoltaic array, comprising:

the photovoltaic module comprises a laminated piece and a frame arranged around the laminated piece, wherein the frame is provided with a mounting plate;

the prestress cable is used for bearing the photovoltaic module;

a connection device according to any one of claims 1 to 9; and/or the connection device of any one of claims 10 to 24; the connecting device is used for fixing the frame on the prestressed cable.