Elastic connecting piece and photovoltaic system

Abstract

The utility model provides an elastic connecting piece and a photovoltaic system, and relates to the field of photovoltaic technology. The elastic connecting piece comprises a cable bearing part, two fixing parts and two frame connecting parts. One fixing part, the cable bearing part and the other fixing part are connected in sequence to define a first U-shaped groove; the frame connecting part is located at an opening of the first U-shaped groove; the frame connecting part comprises a second U-shaped groove; each fixing part is provided with a lug piece; the two lug pieces are oppositely distributed, and each lug piece comprises an opening close to the first U-shaped groove, a lug piece movable end separated from the fixed part, and a lug piece fixed end; a mounting hole is formed in each lug; the frame connecting parts and the lugs are distributed in a staggered mode in the extending direction of the center line of the second U-shaped groove. According to the utility model, the frame can be prevented from twisting, the frame can be lifted and supported more stably, the number of installation parts is small, and the installation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to an elastic connector and a photovoltaic system. Background Art

[0002] In order to set up photovoltaic systems on complex terrain, photovoltaic brackets are often used to install photovoltaic modules.

[0003] Reference Figure 1 As shown, the installation of photovoltaic modules in the photovoltaic system in the prior art is specifically as follows: the support cable 1 is placed in the pressure plate 2, the bolt 3 is put on the flat washer 4, and then passes through the through holes on the pressure plate 2 and the mounting plate 71 at the bottom of the frame of the photovoltaic module, and then the spring washer 5 is put on and the nut 6 is tightened.

[0004] However, in the above installation process, there are many components, which leads to low installation efficiency of photovoltaic modules, and components are easily missed. In addition, the installation of photovoltaic modules is not stable enough, and photovoltaic modules are prone to twisting problems. Utility Model Content

[0005] The utility model provides an elastic connector and a photovoltaic system, aiming to solve the problem that during the process of installing photovoltaic components on a photovoltaic bracket, there are many components, resulting in low installation efficiency, easy missing components, and easy torsion of the photovoltaic components.

[0006] In a first aspect of the present invention, there is provided an elastic connector, comprising:

[0007] A cable bearing portion, two oppositely arranged fixing portions and two oppositely arranged frame connecting portions; one of the fixing portions, the cable bearing portion and the other of the fixing portions are sequentially connected to form a first U-shaped groove; the frame connecting portion is located at the opening of the first U-shaped groove;

[0008] Each of the fixing parts is provided with an ear piece; the two ear pieces are arranged opposite to each other, and each of the ear pieces comprises an ear piece movable end close to the opening of the first U-shaped groove and separated from the fixing part, and an ear piece fixed end close to the cable bearing part and located on the fixing part; each of the ear pieces is provided with a mounting hole;

[0009] Each of the frame connecting parts includes: a second U-shaped groove, the center line of the second U-shaped groove is perpendicular to the center line of the first U-shaped groove; along the direction in which the center line of the second U-shaped groove extends, the frame connecting part and the ear piece are staggered.

[0010] Optionally, the elastic connector further comprises: two supporting parts arranged opposite to each other, connected to the fixing part and located at the opening of the first U-shaped groove;

[0011] The two support portions both extend in a direction away from the center line of the first U-shaped groove, and each of the support portions has a support surface flush with a groove wall of the second U-shaped groove close to the cable bearing portion.

[0012] Optionally, each of the frame connecting parts includes a first part, a second part, and a third part, wherein the first part, the second part, and the third part are sequentially connected to form a third U-shaped groove, and the third U-shaped groove has an opening direction opposite to that of the first U-shaped groove; the first part is connected to the fixing part adjacent thereto;

[0013] The second U-shaped groove is arranged on the first part, and the opening of the second U-shaped groove faces the ear piece; a fourth U-shaped groove is arranged on each of the third parts, and all the second U-shaped grooves and all the fourth U-shaped grooves are used to accommodate the mounting plate at the bottom of the same frame.

[0014] Optionally, each of the frame connecting parts also includes: a tongue piece, which is arranged on the second part; the tongue piece extends toward the cable bearing part and has a free end close to the cable bearing part, and the end of the free end is farther away from the groove wall of the cable bearing part than the second U-shaped groove and closer to the cable bearing part.

[0015] Optionally, a protruding tooth is provided at the end of the free end, and the protruding tooth has a tooth tip.

[0016] Optionally, at least one limiting protrusion is provided on at least one of the ear pieces at a position closer to the cable bearing portion than the mounting hole; each of the limiting protrusions protrudes toward the inside of the first U-shaped groove.

[0017] Optionally, both ear pieces are provided with limiting protrusions, and each limiting protrusion on one ear piece is distributed relative to each limiting protrusion on the other ear piece.

[0018] Optionally, along the extension direction of the center line of the first U-shaped groove and along the direction close to the opening of the first U-shaped groove, the protrusion height of each of the limiting protrusions on at least one of the ear pieces increases.

[0019] Optionally, the surface of the limiting protrusion is arc-shaped.

[0020] Optionally, all the mounting holes on the two ear pieces include at least one square mounting hole.

[0021] Optionally, the square mounting hole includes: a square mounting light hole.

[0022] Optionally, each corner of the square mounting light hole is provided with a chamfer.

[0023] Optionally, the elastic connecting member is made of a metal plate and is an integral structure.

[0024] A second aspect of the present invention provides a photovoltaic system, comprising: a photovoltaic module, a fastener, a cable, and any one of the aforementioned elastic connectors;

[0025] The cable passes through the cable bearing portion of the elastic connector;

[0026] The fastener passes through the mounting hole, and the fastener is fastened, so that the two ears and the cable bearing part hold the cable together;

[0027] The mounting plate at the bottom of the frame of the photovoltaic module is embedded in the second U-shaped groove, and the cavity of the frame of the photovoltaic module is placed on the portion of the opening of the first U-shaped groove that is flush with the ear piece.

[0028] Optionally, the elastic connector also includes: two oppositely arranged support portions, connected to the fixing portion, and located at the opening of the first U-shaped groove; the two support portions extend in a direction away from the center line of the first U-shaped groove, and each of the support portions has a support surface that is flush with the groove wall of the second U-shaped groove close to the cable bearing portion, and the cavity of the frame of the photovoltaic module is placed on the support surface.

[0029] Optionally, at least one of the ear pieces is provided with at least one limiting protrusion at a position closer to the cable bearing portion than the mounting hole; each of the limiting protrusions protrudes toward the inside of the first U-shaped groove;

[0030] The limiting protrusion abuts against the surface of the cable.

[0031] Optionally, each of the frame connecting parts also includes: a tongue piece, which extends toward the cable bearing part and has a free end close to the cable bearing part, the end of the free end is farther away from the groove wall of the cable bearing part than the second U-shaped groove and closer to the cable bearing part, and the end of the free end is provided with a convex tooth, and the convex tooth has a tooth tip; the tooth tip of the convex tooth bites and embeds into the mounting plate.

[0032] Optionally, the fastener includes a square neck; the mounting hole includes a square mounting hole, and the square neck of the fastener passes through the square mounting hole and is clamped in the square mounting hole.

[0033] Optionally, the square mounting hole comprises: a square mounting light hole;

[0034] The fastener comprises a carriage screw, the square neck of which is clamped in the square mounting hole.

[0035] In the utility model, during the process of installing the photovoltaic module on the photovoltaic bracket: the frame of the photovoltaic module is embedded in the second U-shaped groove, and the second U-shaped groove supports the frame of the photovoltaic module. The cable bearing part in the first U-shaped groove carries the cable, and the movable ends of the two relatively distributed ears move toward each other in the first U-shaped groove, driving the fixing part to move toward each other in the first U-shaped groove. The two fixing parts drive the cable bearing part to bend in the first U-shaped groove, and then the two ears and the cable bearing part hold the cable together, which is equivalent to a clamp, and can firmly fix the cable. The elastic connector absorbs the stress during the installation process, and then the tightening process of the fastener does not require the use of gaskets, etc. At the same time, the elastic connector is an integrated structure. During the entire fixing process, the installation components are only the elastic connector and the fastener. There are fewer installation components, the installation efficiency is high, the installation work intensity is reduced, and the risk of missing components can be reduced. The mounting plate at the bottom of the frame of the photovoltaic module is accommodated in the second U-shaped groove, and the cavity of the frame of the photovoltaic module is placed on the portion corresponding to the ear piece in the opening of the first U-shaped groove, and in the extension direction of the center line of the first U-shaped groove, the cavity of the frame of the photovoltaic module is aligned with the rope clamp structure formed by the ear piece and the rope bearing part. The cavity of the frame is the main force-bearing structure of the frame, and the cavity can directly transmit the force on it to the rope fixed by the clamp, which can avoid the generation of torque and the resulting torsion, making the lifting and support of the frame more stable. In addition, during the installation and disassembly process of the photovoltaic module, the portion of the opening of the first U-shaped groove that is flush with the ear piece can also support and guide the photovoltaic module, making it easy for the mounting plate of the frame of the photovoltaic module to be inserted into the second U-shaped groove, making the installation of the mounting plate more labor-saving and convenient, and also facilitating the removal of the mounting plate from the second U-shaped groove, making the disassembly of the mounting plate more labor-saving and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic diagram of the structure of a photovoltaic system in the prior art is shown;

[0038] Figure 2 A schematic diagram of the three-dimensional structure of an elastic connector in an embodiment of the utility model is shown;

[0039] Figure 3 A schematic diagram of the front view structure of an elastic connector in an embodiment of the utility model is shown;

[0040] Figure 4A right side structural schematic diagram of an elastic connector in an embodiment of the utility model is shown;

[0041] Figure 5 A front view structural diagram of a photovoltaic system before fastening in an embodiment of the utility model is shown;

[0042] Figure 6 A front view structural schematic diagram of a photovoltaic system in an embodiment of the utility model is shown;

[0043] Figure 7 A left side structural schematic diagram of a photovoltaic system in an embodiment of the utility model is shown.

[0044] Description of the accompanying drawings:

[0045] 1-cable, 2-pressure plate, 3-bolt, 4-flat washer, 5-spring washer, 6-nut, 7-frame of photovoltaic module, 71-mounting plate at the bottom of the frame of photovoltaic module, 72-cavity of the frame of photovoltaic module, 8-first U-shaped groove, 81-cable bearing part, 82-fixing part, 83-frame connecting part, 831-second U-shaped groove, 832-tongue, 8321-free end of tongue, 83211-convex tooth at the free end of tongue, 833-second part, 834-third part, 821-ear, 822-support part, 8221-support surface of support part, 8211-mounting hole, 8212-limiting protrusion, 8341-fourth U-shaped groove, 9-fastener, 91-head of fastener, 92-square neck. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The elastic connector includes: a cable bearing portion 81, two oppositely arranged fixing portions 82 and two oppositely arranged frame connecting portions 83. One fixing portion 82, the cable bearing portion 81 and the other fixing portion 82 are sequentially connected to form a first U-shaped groove 8. The frame connecting portion 83 is located at the opening of the first U-shaped groove 8. Figure 2 , Figure 3 , Figure 5 and Figure 6The opening of the first U-shaped groove 8 is at the top, and the bottom of the first U-shaped groove 8 is at the bottom. The center line L1 of the first U-shaped groove 8 is roughly along the up-down direction. Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 The cable bearing portion 81 is located at the bottom of the first U-shaped groove 8 and is used to bear the cable 1. The frame connecting portion 83 is located at the opening of the first U-shaped groove 8 and is used to accommodate the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module. Figure 5 , Figure 6 and Figure 7 The parts of the first U-shaped groove 8 that are in contact with the cable 1 are all cable bearing parts 81.

[0048] Each frame connection portion 83 includes: a second U-shaped groove 831, the center line L2 of the second U-shaped groove 831 is perpendicular to the center line L1 of the first U-shaped groove 8. The center line of the second U-shaped groove 831 refers to its symmetry axis. The center line of the first U-shaped groove 8 refers to its symmetry axis. Figure 2 As shown, the direction of the center line L1 of the first U-shaped groove 8 is the up-down direction, and the dotted line L2 is the direction of the center line of the second U-shaped groove 831, which is perpendicular to the paper surface, and the two are perpendicular. All second U-shaped grooves 831 are used to accommodate the mounting plate 71 at the bottom of the frame 7 of the same photovoltaic module, and the second U-shaped grooves 831 support and fix the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module. An ear piece 821 is provided on each fixing portion 82. The two ear pieces 821 are relatively distributed, and each ear piece 821 includes an ear piece movable end that is close to the opening of the first U-shaped groove 8 and separated from the fixing portion 82, and an ear piece fixed end that is close to the cable bearing portion 81 and located on the fixing portion 82. For example, Figure 2 In the embodiment, the upper end of the ear piece 812 is the movable end of the ear piece, and the lower end is the fixed end of the ear piece.

[0049] Each ear piece 821 is provided with a mounting hole 8211, and the corresponding mounting holes 8211 are used to pass the same fastener 9. The corresponding mounting holes 8211 here refer to the directions in which the mounting holes 8211 on different ear pieces are sequentially arranged. The movable ends of the two relatively distributed ear pieces 821 move toward each other in the first U-shaped groove 8, driving the fixing part 82 to move toward each other in the first U-shaped groove 8. The two fixing parts 82 also drive the cable bearing part 81 to move toward each other in the first U-shaped groove 8, and then the two ear pieces 821 and the cable bearing part 81 hold the cable 1 together, which is equivalent to a clamp, and then firmly fixes the cable 1. In the utility model, the elastic connector absorbs the stress during the installation process, and then the fastening process of the fastener 9 does not require the use of gaskets, etc. At the same time, the elastic connector is an integrated structure. During the entire fixing process, the installation components are only the elastic connector and the fastener 9. There are fewer installation components, high installation efficiency, reduced installation work intensity, and can reduce the risk of missing components.

[0050] Along the direction in which the center line L2 of the second U-shaped groove 831 extends, the frame connecting portion 83 and the ear piece 821 are staggered, that is, the frame connecting portion 83 and the ear piece 821 are arranged one in front of the other. Figure 6 , Figure 7 The mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is accommodated in the second U-shaped groove 831, and the cavity 72 of the frame 7 of the photovoltaic module is placed on the part corresponding to the ear 821 in the opening of the first U-shaped groove 8, and in the extension direction of the center line L1 of the first U-shaped groove 8, the cavity 72 of the frame 7 of the photovoltaic module is aligned with the cable clamp structure formed by the ear 821 and the cable bearing part 81. The cavity 72 of the frame is the main force-bearing structure of the frame 7. The cavity 72 can directly transmit the force on it to the cable 1 fixed by the clamp, which can avoid the generation of torque and the resulting torsion, making the lifting and support of the frame more stable. In addition, during the installation and disassembly process of the photovoltaic component, the portion of the opening of the first U-shaped groove 8 that is flush with the ear piece 821 can also support and guide the photovoltaic component, making it easy for the mounting plate 71 of the frame of the photovoltaic component to be inserted into the second U-shaped groove 831, making the installation of the mounting plate 71 easier and more convenient, and also making it easier to pull the mounting plate 71 out of the second U-shaped groove 831, making the disassembly of the mounting plate 71 easier and more convenient.

[0051] Optionally, all the mounting holes 8211 of the two ear pieces 821 have at least one square mounting hole, for example, Figure 2 , Figure 4As shown, both mounting holes 8211 are square mounting holes. The fastener 9 here can be a bolt, screw, etc. with a square neck 92. The square neck 92 of the fastener 9 passes through the square mounting hole and is clamped in the square mounting hole to fasten the fastener 9. The square neck 92 and the square mounting hole are combined with each other to limit the rotation of the fastener 9, and the anti-rotation effect is better, making the connection simpler and more stable. It should be noted that the specific shape of the square mounting hole is not limited here. For example, refer to Figure 2 and Figure 4 As shown, the square mounting hole can be a rectangular mounting hole. The square mounting hole can also be a non-circular mounting hole such as a pentagonal mounting hole, a hexagonal mounting hole, etc. The two mounting holes 8211 can both be square mounting holes, or only one can be a square mounting hole.

[0052] Optionally, the square mounting hole includes: a square mounting hole, which means that the inner surface of the square mounting hole has no threads. The carriage screw has a square neck, which has no threads, and the carriage screw can be matched with the square mounting hole. The carriage screw is more common, so the anti-rotation function is simpler to implement.

[0053] Optional, see Figure 2 , Figure 4 As shown, each corner of the square installation light hole is provided with a chamfer, which facilitates the installation of the fastener 9, and the stress on the fastener 9 is relatively dispersed, which can appropriately increase the life of the fastener 9. The chamfer here can be a circular chamfer, etc., and the specific shape of the chamfer is not limited.

[0054] Optional, see Figure 2 , Figure 3 , Figure 5 and Figure 6 At least one limiting protrusion 8212 is provided on at least one ear piece 821 at a position closer to the cable bearing portion 81 than the mounting hole 8211. Each limiting protrusion 8212 protrudes toward the inside of the first U-shaped groove 8. After the two ear pieces 821 and the cable bearing portion 81 hold the cable 1 together, each limiting protrusion 8212 on at least one ear piece 821 protruding toward the inside of the first U-shaped groove 8 will produce abutment after contacting the cable 1. Each limiting protrusion 8212 of the present application increases the contact area with the cable 1 and increases the holding force on the cable 1, so that the fixation of the cable 1 is more firm and reliable. There is no specific limitation on whether the number of upper limit protrusions 8212 on the two ear pieces 821 is equal. The number of upper limit protrusions 8212 on the two ear pieces 821 can be equal or unequal. For example, only one ear piece 821 has a limit protrusion 8212, or both ear pieces 821 have a limit protrusion 8212 and the number of upper limit protrusions 8212 on the two ear pieces 821 is equal.

[0055] Optionally, both ear pieces 821 have limiting protrusions 8212, and each limiting protrusion 8212 on one ear piece 821 is relatively distributed with each limiting protrusion 8212 on the other ear piece 821. After the two ear pieces 821 and the cable bearing portion 81 hold the flexible cable 1 together, the relatively distributed limiting protrusions 8212 on the two ear pieces 821 will produce a relative abutment effect after contacting the flexible cable 1. Each limiting protrusion 8212 of the present application increases the contact area with the flexible cable 1 and increases the holding force on the flexible cable 1, so that the fixation of the flexible cable 1 is more firm and reliable. The number of limiting protrusions 8212 on one ear piece 821 is not specifically limited.

[0056] Optionally, along the extension direction of the center line L1 of the first U-shaped groove 8, the number of the limiting protrusions 8212 on at least one ear piece 821 is greater than or equal to 2, and along the direction close to the opening of the first U-shaped groove 8, the protrusion height of each limiting protrusion 8212 on at least one ear piece 821 increases. Specifically, along the direction close to the opening of the first U-shaped groove 8, the distance between the surface of the cable 1 and the fixing portion 82 increases. Therefore, along the direction close to the opening of the first U-shaped groove 8, the protrusion height of each limiting protrusion 8212 on at least one ear piece 821 increases, which can ensure that each limiting protrusion 8212 can fully contact with the surface of the cable 1. After the two ear pieces 821 and the cable bearing portion 81 hold the cable 1 together, each limiting protrusion 8212 on at least one ear piece 821, after fully contacting with the cable 1, will produce a greater abutment effect, thereby increasing the holding force on the cable 1, and thus the fixing of the cable 1 is more firm and reliable.

[0057] For example, refer to Figures 2 to 7 , the up-down direction is the extension direction along the center line of the first U-shaped groove 8, and the opening of the first U-shaped groove 8 is at the top. In the up-down direction, if the number of the limiting protrusions 8212 on each ear piece 821 is greater than or equal to 2. The higher it is, the greater the distance between the surface of the cable 1 and the fixing portion 82. Therefore, the higher it is, the greater the protrusion height of each limiting protrusion 8212 on each ear piece 821 is, which can ensure that each limiting protrusion 8212 can fully contact the surface of the cable 1. After the two ear pieces 821 and the cable bearing portion 81 hold the cable 1 together, the relatively distributed limiting protrusions 8212 on the two ear pieces 821 can fully contact the cable 1, which can produce a greater relative abutment effect, increase the holding force on the cable 1, and therefore, the fixation of the cable 1 is more firm and reliable.

[0058] It should be noted that the protrusion height of the limiting protrusion 8212 is the height of the limiting protrusion 8212 protruding toward the inside of the first U-shaped groove 8. The protrusion height of each limiting protrusion 8212 is specifically based on the fact that after the two ears 821 and the cable bearing part 81 hold the cable 1 together, the limiting protrusion 8212 can fully abut against the surface of the cable 1 without causing excessive stress to the surface of the cable 1, and at the same time, it will not hinder the placement of the cable 1 in the process of placing the cable 1 in the cable bearing part 81.

[0059] Optionally, the surface of the limiting protrusion 8212 is arc-shaped, and the stress distribution of the limiting protrusion with an arc-shaped surface on the surface of the cable 1 is relatively dispersed, and basically no adverse effect is produced on the cable 1. The specific shape of the arc-shaped surface of the limiting protrusion is not specifically limited.

[0060] Reference Figure 2 Optionally, the elastic connector further comprises: two supporting portions 822 arranged opposite to each other, connected to the fixing portion 82, the supporting portions 822 being located at the opening of the first U-shaped groove 8, and the two supporting portions 822 both extending in a direction away from the center line L1 of the first U-shaped groove 8. Each supporting portion 822 has a supporting surface 8221 arranged flush with the groove wall of the second U-shaped groove 831 close to the cable bearing portion 81, referring to Figure 6 , Figure 7 The supporting surfaces 8221 of all the supporting parts 822 are used to support the cavity 72 of the same frame. Then, the mounting plate 71 at the bottom of the frame of the photovoltaic module is accommodated in the second U-shaped groove 831, and the cavity 72 of the frame is placed on the supporting surface 8221 of the supporting part 822, and in the extension direction of the center line L1 of the first U-shaped groove 8, the cavity 72 of the frame 7 of the photovoltaic module is aligned with the rope clamp structure formed by the ear piece 821 and the rope bearing part 81. The cavity 72 of the frame is the main force-bearing structure of the frame 7. The cavity 72 can directly transmit the force on it to the rope 1 fixed by the clamp, which can avoid the generation of torque and the torsion caused, so that the lifting and support of the frame are more stable. As mentioned above, the mounting plate 71 at the bottom of the frame of the photovoltaic module is in a good force state, and the fixing of the mounting plate 71 is relatively firm and reliable. Furthermore, in the process of inserting the mounting plate 71 into the second U-shaped groove 831, the supporting surface 8221 of the supporting portion 822 can also play a good guiding and supporting role, facilitating the insertion of the mounting plate 71 into the second U-shaped groove 831, making the installation of the mounting plate 71 more labor-saving and more convenient. In the process of pulling out the mounting plate 71 from the second U-shaped groove 831, the supporting surface 8221 of the supporting portion 822 can also play a good guiding and supporting role, facilitating the pulling out of the mounting plate 71 from the second U-shaped groove 831, making the removal of the mounting plate 71 more labor-saving and more convenient.

[0061] like Figure 2In the embodiment, two supporting portions 822 are arranged at the end of the opening of the first U-shaped groove 8, and the two supporting portions 822 are respectively connected to the adjacent fixing portions 82, and the two supporting portions 822 extend to the left or right, that is, they extend along the center line away from the first U-shaped groove 8. Each supporting portion 822 has a supporting surface 8221 that is flush with the lower groove wall of the second U-shaped groove 831. The mounting plate 71 at the bottom of the frame of the photovoltaic module is accommodated in the second U-shaped groove 831, and the cavity 72 of the frame is placed on the supporting surface 8221 of the supporting portion 822, and in the extension direction of the center line L1 of the first U-shaped groove 8, the cavity 72 of the frame 7 of the photovoltaic module is aligned with the cable clamp structure formed by the ear piece 821 and the cable bearing portion 81. The cavity 72 of the frame is the main force-bearing structure of the frame 7. The cavity 72 can directly transmit the force thereon to the cable 1 fixed by the clamp, which can avoid the generation of torque and the resulting torsion, making the lifting and support of the frame more stable. As mentioned above, the mounting plate 71 at the bottom of the frame of the photovoltaic module is in a good force state, and the fixing of the mounting plate 71 is relatively firm and reliable. Furthermore, in the process of inserting the mounting plate 71 into the second U-shaped groove 831 inwardly along the direction perpendicular to the paper surface, the supporting surface 8221 of the supporting portion 822 can also play a good guiding and supporting role, facilitating the insertion of the mounting plate 71 into the second U-shaped groove 831, making the installation of the mounting plate 71 more labor-saving and more convenient. In the process of pulling the mounting plate 71 outwardly from the second U-shaped groove 831 in the direction perpendicular to the paper surface, the supporting surface 8221 of the supporting portion 822 can also play a good guiding and supporting role, facilitating the pulling of the mounting plate 71 out of the second U-shaped groove 831, making the removal of the mounting plate 71 more labor-saving and more convenient.

[0062] Optionally, the support portion 822 and the fixing portion 82 are an integrated structure, the support portion 822 and the fixing portion 82 have good mechanical properties, a long service life, a good fixing effect on the frame of the photovoltaic module, and are easy to store and transport. Figure 2 The support portion 822 is formed by bending the end portion of the fixing portion 82 close to the opening of the first U-shaped groove 8. The forming process of the support portion 822 is simple and the production efficiency is high.

[0063] Optional, see Figures 5 to 7 The fixed end of each ear piece 821 is farther away from the opening of the first U-shaped groove 8 than the center line of the cable 1 passing through the cable bearing portion 81. The fixed end of the ear piece 821 is lower than the center line of the cable 1, that is, the fixed end of the ear piece 821 is lower and farther away from its movable end. The part between the movable end and the fixed end of the ear piece 821 can move. Therefore, the movable end of the ear piece 821 has a larger movable distance, and the ear piece 821 participates in deformation for a longer distance. The longer part of the ear piece 821 will hold the cable 1 tightly, which is more reliable for fixing the cable 1 and can reduce stress.

[0064] Optional, see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 Each frame connection portion 83 includes a first portion, a second portion 833, and a third portion 834, which are sequentially connected to form a third U-shaped groove, and the opening direction of the third U-shaped groove is opposite to that of the first U-shaped groove 8. Figure 2 As shown, the first U-shaped groove 8 opens upward, and the third U-shaped groove opens downward. The first part is connected to the fixing part 82 adjacent thereto. The aforementioned second U-shaped groove 831 is arranged on the first part. The opening of the second U-shaped groove 831 faces the ear piece and the supporting part 822, thereby connecting the second U-shaped groove 831 and the supporting part 822 to form a connecting space for placing the frame. The supporting part 822 is arranged at a position close to the opening of the second U-shaped groove 831 on the opening of the first U-shaped groove 8. A fourth U-shaped groove 8341 is provided on each third part 834. All fourth U-shaped grooves 8341 and all second U-shaped grooves 831 are used to accommodate the mounting plate 71 at the bottom of the same frame 7. The center line of the fourth U-shaped groove 8341 is shown as the dotted line L3. The center line L3 of the fourth U-shaped groove 8341 is parallel or approximately parallel to the center line L2 of the second U-shaped groove 831. The fourth U-shaped groove 8341 plays a good complementary role in supporting and fixing the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module. At the same time, the supporting surfaces 8221 of all supporting parts 822 are used to support the cavity 72 of the same frame mentioned above, all fourth U-shaped grooves 8341 and all second U-shaped grooves 831 can firmly and reliably support the mounting plate 71, and during the installation and disassembly of the mounting plate 71, the supporting surfaces of all supporting parts 822 can play a good guiding and supporting role, making the installation and disassembly more labor-saving and convenient.

[0065] Optionally, each frame connection portion 83 further includes: a tongue piece 832, which is arranged on the second portion 833, and the tongue piece 832 is arranged in the space of the third U-shaped groove. The arrangement position is ingenious, no additional space is occupied, and storage and transportation are convenient. The tongue piece 832 extends toward the cable bearing portion 81, and the tongue piece 832 has a free end 8321 close to the cable bearing portion 81. The end of the free end 8321 is farther from the groove wall of the cable bearing portion 81 than the second U-shaped groove 831, and is closer to the cable bearing portion 81. Figure 2, the groove wall of the second U-shaped groove 831 away from the cable bearing portion 81 is the upper inner wall of the second U-shaped groove 831. The end of the free end 8321 is lower than the upper inner wall of the second U-shaped groove 831. Therefore, after the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is placed in the second U-shaped groove 831, the end of the free end 8321 of the tongue 832 will first contact the mounting plate 71 to bite and embed into the mounting plate 71, and the end of the free end 8321 of the tongue 832 plays a role in fixing the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module. When the two ears 821 and the cable bearing part 81 hold the cable 1 together and firmly fix the cable 1, the cable 1 will give the fixing part 82 a force toward the bottom of the first U-shaped groove 8, and will bring the free end 8321 of the tongue 832 on the frame connecting part 83 to move toward the cable bearing part 81. Since the end of the free end 8321 is farther away from the groove wall of the cable bearing part 81 than the second U-shaped groove 831, and closer to the cable bearing part 81, therefore, when the free end 8321 of the tongue 832 moves toward the cable bearing part 81, the end of the free end 8321 of the tongue 832 will further bite and embed into the mounting plate 71 at the bottom of the photovoltaic module frame 7, further firmly fixing the photovoltaic module.

[0066] Optional, see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The free end 8321 of the tongue piece 832 is provided with a protruding tooth 83211 having a tooth tip, and the free end 8321 of the tongue piece 832 is farther from the groove wall of the cable bearing part 81 than the second U-shaped groove 831, and is closer to the cable bearing part 81. Therefore, after the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is placed in the second U-shaped groove 831, the tooth tip of the protruding tooth 83211 at the free end 8321 of the tongue piece 832 will first contact the mounting plate 71, so as to bite and embed into the mounting plate 71. In addition, the cable 1 will exert a force on the fixing part 82 to move toward the bottom of the first U-shaped groove 8, and will also move the tooth tip of the convex tooth 83211 of the free end 8321 of the tongue piece 832 on the frame connecting part 83 toward the cable bearing part 81. Since the end of the free end 8321 is farther away from the groove wall of the cable bearing part 81 than the second U-shaped groove 831, and closer to the cable bearing part 81, that is, the tooth tip of the convex tooth 83211 of the free end 8321 is farther away from the groove wall of the cable bearing part 81 than the second U-shaped groove 831, and closer to the cable bearing part 81. Therefore, when the free end 8321 of the tongue piece 832 moves toward the cable bearing part 81, the tooth tip of the convex tooth 83211 of the free end 8321 will further bite and embed into the mounting plate 71 at the bottom of the photovoltaic module frame 7, further firmly fixing the photovoltaic module.

[0067] Optionally, the elastic connector is made of a metal sheet, and the elastic connector is integrally formed from the metal sheet into an integrated structure, which has a simple processing technology, low processing cost, high processing efficiency, and excellent performance. The thickness of the metal sheet is not specifically limited, but is limited to the performance requirements of the photovoltaic module for installation and fixation. The metal sheet can be a steel plate, a steel strip, etc.

[0068] For example, when the elastic connecting member is integrally formed from a metal sheet, the thickness of the metal sheet can be greater than or equal to 0.5 mm, for example, the thickness of the metal sheet can be 0.5 mm, or 0.6 mm, or 0.7 mm, or 0.8 mm, or 0.9 mm, or 1.0 mm, or 1.1 mm, or 1.2 mm, or 1.3 mm, or 1.4 mm, or 1.5 mm.

[0069] Optionally, the elastic connector can be a spring steel connector, which has good elasticity and strength. In the process of tightening the fastener 9, the movable ends of the two ear pieces 821 move toward the inside of the first U-shaped groove 8, driving the two ear pieces 821 and the two fixing parts 82 to undergo appropriate elastic deformation, and the ear pieces 821 and the fixing parts 82 will not be torn, etc., which can reduce the damage to the ear pieces 821 and the fixing parts 82. In the process of the convex teeth 83211 on the free end 8321 of the tongue piece 832 being engaged and embedded in the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module, the convex teeth 83211 on the free end 8321 of the tongue piece 832 can also undergo appropriate elastic deformation to avoid breaking the convex teeth 83211. After the limiting protrusion 8212 abuts against the surface of the cable 1, the limiting protrusion 8212 will also undergo appropriate elastic deformation to avoid piercing the cable 1. In summary, the elastic connector made of the above material can increase the life of the elastic connector. Furthermore, the installation between the fastener 9 and the ear piece 821 does not require the provision of elastic buffers, etc., and the number of assembly parts is reduced, resulting in higher assembly efficiency.

[0070] Optionally, the shape of the cable bearing portion 81 is arc-shaped, which better matches the shape of the cable 1. When the cable bearing portion 81 and the cable 1 are in a state of being in close contact with each other, the cable bearing portion 81 and the cable 1 are in a closer contact, further firmly fixing the cable 1. For example, the cable bearing portion 81 is in an arc shape, or the cable bearing portion 81 is in a quasi-arc shape.

[0071] The utility model also provides a photovoltaic system, referring to Figures 2 to 7The photovoltaic system includes: a photovoltaic module, a fastener 9, a cable 1 and any of the aforementioned elastic connectors. The cable 1 passes through the cable bearing portion 81 in the first U-shaped groove 8. The mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is embedded in the second U-shaped groove 831. The fastener 9 passes through the mounting hole to fasten the fastener 9. The movable ends of the two relatively distributed ears 821 move toward each other in the first U-shaped groove 8, driving the two relatively distributed fixed portions 82 of the first U-shaped groove 8 to move toward each other in the first U-shaped groove 8, and the two fixed portions 82 drive the cable bearing portion 81 to move into the first U-shaped groove 8, and then the two ears 821 and the cable bearing portion 81 hold the cable 1 together. After the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is placed in the second U-shaped groove 831, the second U-shaped groove 831 supports and limits the mounting plate 71 at the bottom of the frame 7. The cavity 72 of the frame 7 of the photovoltaic module is placed on the portion corresponding to the ear piece 821 in the opening of the first U-shaped groove 8. In the extension direction of the center line L1 of the first U-shaped groove 8, the cavity 72 of the frame 7 of the photovoltaic module is aligned with the cable clamp structure formed by the ear piece 821 and the cable bearing portion 81. The cavity 72 of the frame is the main force-bearing structure of the frame 7. The cavity 72 can directly transmit the force thereon to the cable 1 fixed by the clamp, thereby avoiding the generation of torque and the resulting torsion, making the lifting and support of the frame more stable, thereby further firmly fixing the photovoltaic module. The elastic connector absorbs the stress during the installation process, and thus the fastening process of the fastener 9 does not require the use of gaskets, etc. The elastic connector is an integrated structure. During the entire fixing process, the installation components are only the elastic connector and the fastener 9, with fewer installation components, high installation efficiency, reduced installation work intensity, and the risk of missing components. In addition, during the installation and disassembly of the photovoltaic module, the portion of the opening of the first U-shaped groove 8 that is flush with the ear piece 821 can also support and guide the photovoltaic module, making it easier for the mounting plate 71 of the frame of the photovoltaic module to be inserted into the second U-shaped groove 831, making the installation of the mounting plate 71 easier and more convenient, and also easier for the mounting plate 71 to be pulled out of the second U-shaped groove 831, making the disassembly of the mounting plate 71 easier and more convenient.

[0072] Optionally, the fastener 9 includes: a square neck 92. Optionally, the fastener 9 includes: a column with external threads, the column includes a head 91, and a square neck 92 adjacent to the head 91, and all mounting holes include: a square mounting hole, the square neck 92 of the fastener 9 passes through the square mounting hole and is clamped in the square mounting hole. In the case where the other mounting hole is a circular mounting hole, optionally, one end of the column away from the head 91 passes through another mounting hole 8211 to fasten the fastener 9, and the square neck 92 and the square mounting hole are combined with each other to limit the rotation of the fastener, with a better anti-rotation effect, making the connection simpler.

[0073] Optionally, the square mounting hole may include: a square mounting light hole, and the fastener 9 includes: a carriage screw, and the square neck of the carriage screw is clamped in the square mounting light hole, which can not only limit the rotation of the fastener 9, but also have a better anti-rotation effect, making the connection simpler and more stable, and the carriage screw is more common and easy to obtain.

[0074] Optionally, at least one of the ear pieces 821 is provided with at least one limiting protrusion 8212 at a position closer to the cable bearing portion 81 than the mounting hole 8211, and each limiting protrusion 8212 protrudes toward the inside of the first U-shaped groove 8. The two ear pieces 821 and the cable bearing portion 81 hold the cable 1 together, and the two fixing portions 82 also drive the limiting protrusions 8212 thereon to move toward each other in the first U-shaped groove 8, and then, each limiting protrusion 8212 abuts against the surface of the cable 1. Each limiting protrusion 8212 of the present application increases the contact area with the cable 1 and increases the holding force on the cable 1, so that the fixing of the cable 1 is more firm and reliable.

[0075] Optionally, each frame connection portion 83 further includes: a tongue piece 832, the tongue piece 832 extends toward the cable bearing portion 81 and has a free end 8321 close to the cable bearing portion 81, the end of the free end 8321 of the tongue piece 832 is farther from the groove wall of the cable bearing portion 81 than the second U-shaped groove 831, and is closer to the cable bearing portion 81. The end of the free end 8321 of the tongue piece 832 is provided with a convex tooth 83211, and the tooth tip of the convex tooth 83211 at the end of the free end 8321 of the tongue piece 832 will preferentially contact the mounting plate 71 to bite and embed into the mounting plate 71. In addition, the cable 1 will exert a force on the fixing portion 82 toward the bottom of the first U-shaped groove 8 or the cable bearing portion 81, and will also move the free end 8321 of the tongue piece 832 on the frame connecting portion 83 toward the cable bearing portion 81. Since the end of the free end 8321 is farther away from the groove wall of the cable bearing portion 81 than the second U-shaped groove 831 and closer to the cable bearing portion 81, when the free end 8321 of the tongue piece 832 moves toward the cable bearing portion 81, the tooth tip of the convex tooth 83211 at the end of the free end 8321 of the tongue piece 832 will further bite and embed into the mounting plate 71 at the bottom of the photovoltaic module frame 7.

[0076] Optionally, a groove or boss with limited convex teeth 83211 is provided on the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module, at the position where the convex teeth 83211 engage, so as to further firmly fix the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module. It should be noted that, compared with the groove, the boss may be more convenient for lifting the tongue 832 during the process of disassembling the photovoltaic module.

[0077] Optionally, a portion of the thickness direction of the mounting plate 71 at the bottom of the frame 7 is embedded in the second U-shaped groove 831, and the opening size of the second U-shaped groove 831 is larger than the thickness of the mounting plate 71 at the bottom of the frame 7, so that the mounting plate 71 at the bottom of the frame 7 can be installed by hand without the need for special tools, and installation and disassembly are simple.

[0078] Optionally, the elastic connecting member includes the aforementioned fourth U-shaped groove 8341, and the portion in the direction of the thickness of the mounting plate 71 at the bottom of the frame 7 is embedded in the fourth U-shaped groove 8341. The opening size of the fourth U-shaped groove 8341 is larger than the thickness of the mounting plate 71 at the bottom of the frame 7, so that the mounting plate 71 at the bottom of the frame 7 can be installed by hand without the need for special tools, and installation and disassembly are simple.

[0079] Optionally, the elastic connector further comprises the aforementioned two oppositely disposed supporting portions 822, connected to the fixing portion, and located at the opening of the first U-shaped groove 8. Both supporting portions 822 extend in a direction away from the center line L2 of the first U-shaped groove, and each supporting portion 822 has a supporting surface 8221 that is flush with the groove wall of the second U-shaped groove 831 near the cable bearing portion 81, as shown in FIG. Figure 6 , Figure 7 The supporting surfaces 8221 of all the supporting parts 822 are used to support the cavity 72 of the same frame. The mounting plate 71 at the bottom of the frame of the photovoltaic module is accommodated in the second U-shaped groove 831, and the cavity 72 of the frame is placed on the supporting surface 8221 of the supporting part 822, and in the extension direction of the center line L1 of the first U-shaped groove 8, the cavity 72 of the frame 7 of the photovoltaic module is aligned with the rope clamp structure formed by the ear piece 821 and the rope bearing part 81. The cavity 72 of the frame is the main force-bearing structure of the frame 7. The cavity 72 can directly transmit the force on it to the rope 1 fixed by the clamp, which can avoid the generation of torque and the torsion caused, so that the lifting and support of the frame are more stable. As mentioned above, not only can the mounting plate 71 and the cavity 72 be firmly and reliably supported, but also in the process of installing and removing the mounting plate 71, the supporting surfaces of all the supporting parts 822 can play a good guiding and supporting role, making the installation and removal more labor-saving and convenient.

[0080] The photovoltaic system provided by the present invention can refer to the relevant records of any of the aforementioned elastic connectors, and has the same or similar beneficial effects as any of the aforementioned elastic connectors, which will not be described again here to avoid repetition.

[0081] Reference Figures 2 to 7, the process of installing a photovoltaic module on a photovoltaic bracket may include the following steps. In the first step, the elastic connector is installed on the cable 1, and the cable 1 falls into the cable bearing portion 81 of the first U-shaped groove 8. In the second step, when the supporting surface 8221 of the supporting portion 822 plays a supporting and guiding role, the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is installed into the second U-shaped groove 831 and the fourth U-shaped groove 8341, and the cavity 72 of the frame 7 of the photovoltaic module is placed on the supporting surface 8221 of the supporting portion 822. Specifically, the portion of the mounting plate 71 at the bottom of the frame 7 in the direction of the thickness is embedded in the second U-shaped groove 831 and the fourth U-shaped groove 8341, and the size of the opening of the second U-shaped groove 831 and the size of the opening of the fourth U-shaped groove 8341 are both larger than the thickness of the mounting plate 71 at the bottom of the frame 7. Therefore, the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module can be installed into the second U-shaped groove 831 and the fourth U-shaped groove 8341 by hand without the need for special tools. After the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module is installed into the second U-shaped groove 831 and the fourth U-shaped groove 8341, the support portion 822 also supports the mounting plate 71. The tooth tip of the convex tooth 83211 at the end of the free end 8321 of the tongue 832 can be embedded in the mounting plate 71 at the bottom of the frame 7 of the photovoltaic module, so that the mounting plate 71 is not easy to loosen. The fastener 9 includes: a column with external threads, the column includes a head 91, and a square neck 92 adjacent to the head 91. Step 3: Use the square neck 92 of the fastener 9 to pass through the square mounting hole of the left ear piece 821, and the end of the column away from the head 91 is inserted into the mounting hole 8211 of the right ear piece 821 to tighten the fastener 9. In the process of tightening the fastener 9, the square mounting hole and the square neck 92 of the fastener 9 cooperate with each other to limit the rotation of the fastener 9, and the anti-rotation effect is better, making the connection simpler and more stable. During the process of tightening the fastener 9, the movable ends of the left ear piece 821 and the right ear piece 821 will move toward the inside of the first U-shaped groove 8, driving the left ear piece 821 and the right ear piece 821 to undergo elastic deformation and move toward the inside of the first U-shaped groove 8. The left ear piece 821 and the right ear piece 821 will also drive the two relatively arranged fixing parts 82 to move toward the inside of the first U-shaped groove 8. The two relatively arranged fixing parts 82 drive the cable bearing part 81 to move toward the inside of the first U-shaped groove 8. The left ear piece 821, the right ear piece 821 and the cable bearing part 81 are equivalent to a clamp, which clamps the cable 1 tightly. Moreover, the cavity 72 of the frame is placed on the supporting surface 8221 of the supporting portion 822, and in the extension direction of the center line L1 of the first U-shaped groove 8, the cavity 72 of the frame 7 of the photovoltaic module is aligned with the cable clamp structure formed by the ear piece 821 and the cable bearing portion 81. The cavity 72 of the frame is the main force-bearing structure of the frame 7. The cavity 72 can directly transmit the force thereon to the cable 1 fixed by the clamp, which can avoid the generation of rotational torque and the resulting torsion, thereby making the lifting and support of the frame more stable.At the same time, the relative positioning protrusions 8212 on the two ear pieces 821 will produce a greater relative abutment effect after fully contacting the cable 1, thereby increasing the clamping force on the cable 1, and thus making the fixing of the cable 1 more secure and reliable. The cable 1 will exert a force on the fixing portion 82 toward the bottom of the first U-shaped groove 8 or the cable bearing portion 81, and will also move the free end 8321 of the tongue piece 832 on the frame connecting portion 83 toward the cable bearing portion 81. Since the end of the free end 8321 is farther away from the groove wall of the cable bearing portion 81 than the second U-shaped groove 831 and closer to the cable bearing portion 81, when the free end 8321 of the tongue piece 832 moves toward the cable bearing portion 81, the tooth tip of the convex tooth 83211 at the end of the free end 8321 of the tongue piece 832 will further bite and embed into the mounting plate 71 at the bottom of the photovoltaic module frame 7, thereby firmly locking the mounting plate 71 at the bottom of the photovoltaic module frame 7, so that the elastic connector is not easy to loosen. Therefore, during the assembly process, only one end of the nut needs to be tightened to achieve the tightening and anti-rotation functions.

[0082] Reference Figures 2 to 7 When disassembling the photovoltaic module, the nut of the fastener 9 is unscrewed, and the movable ends of the two ear pieces 821 are restored to the open state under the action of the elastic restoring force, and move toward the outside of the first U-shaped groove 8, driving the two ear pieces 821 to restore to the open state, and the limiting protrusion on the ear piece 821 also releases the cable 1, and the first U-shaped groove 8 is also restored to the open state under the action of the elastic restoring force. In this state, since the opening size of the second U-shaped groove 831 and the opening size of the fourth U-shaped groove 8341 are both larger than the thickness of the mounting plate 71 at the bottom of the frame 7, the second U-shaped groove 831 and the fourth U-shaped groove 8341 mainly support the mounting plate 71 at the bottom of the frame 7. A special tool can be used to lift the two tongue pieces 832 at the same time, so that the convex tooth 83211 at the end of the free end 8321 of the tongue piece 832 moves in the direction away from the mounting plate 71 at the bottom of the photovoltaic module frame 7, and under the support and guiding action of the support portion 822, the elastic connector is pulled out from the photovoltaic module frame 7.

[0083] It should be noted that, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The number of protruding teeth 83211 on the free end 8321 of the tongue piece 832 is not limited. The special tool used to lift the tongue piece 832 can be used between adjacent protruding teeth 83211, or can be set on the side of the tongue piece 832. In the case where the special tool used to lift the tongue piece 832 is set between adjacent protruding teeth 83211, the shape between adjacent protruding teeth 83211 can be determined according to the shape of the special tool, with reference to the ease of inserting the special tool, and is not specifically limited. For example, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In the figure, the special tool used to lift the tongue piece 832 can be set at the position of action between adjacent convex teeth 83211. The shape of the part between adjacent convex teeth 83211 can have a certain plane or arc surface. The shape of the special tool can have a flat surface or an arc surface. The shapes of the two are adapted to facilitate the special tool to extend between adjacent convex teeth 83211, and the special tool is not easy to slip during the action.

[0084] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0085] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. An elastic connector, characterized in that: include: A cable bearing portion, two oppositely arranged fixing portions and two oppositely arranged frame connecting portions; one of the fixing portions, the cable bearing portion and the other of the fixing portions are sequentially connected to form a first U-shaped groove; the frame connecting portion is located at the opening of the first U-shaped groove; Each of the fixing parts is provided with an ear piece; the two ear pieces are arranged opposite to each other, and each of the ear pieces comprises an ear piece movable end close to the opening of the first U-shaped groove and separated from the fixing part, and an ear piece fixed end close to the cable bearing part and located on the fixing part; each of the ear pieces is provided with a mounting hole; Each of the frame connecting parts includes: a second U-shaped groove, the center line of the second U-shaped groove is perpendicular to the center line of the first U-shaped groove; along the direction in which the center line of the second U-shaped groove extends, the frame connecting part and the ear piece are staggered.

2. The elastic connector according to claim 1, characterized in that: Also includes: Two supporting parts arranged opposite to each other, connected to the fixing part and located at the opening of the first U-shaped groove; The two support portions both extend in a direction away from the center line of the first U-shaped groove, and each of the support portions has a support surface flush with a groove wall of the second U-shaped groove close to the cable bearing portion.

3. The elastic connector according to claim 1 or 2, characterized in that: Each of the frame connection parts includes a first part, a second part, and a third part, wherein the first part, the second part, and the third part are sequentially connected to form a third U-shaped groove, and the third U-shaped groove has an opening direction opposite to that of the first U-shaped groove; the first part is connected to the fixing part adjacent thereto; The second U-shaped groove is arranged on the first part, and the opening of the second U-shaped groove faces the ear piece; a fourth U-shaped groove is arranged on each of the third parts, and all the second U-shaped grooves and all the fourth U-shaped grooves are used to accommodate the mounting plate at the bottom of the same frame.

4. The elastic connector according to claim 3, characterized in that: Each of the frame connecting parts also includes: a tongue piece, which is arranged on the second part; the tongue piece extends toward the cable bearing part and has a free end close to the cable bearing part, and the end of the free end is farther away from the groove wall of the cable bearing part than the second U-shaped groove and closer to the cable bearing part.

5. The elastic connector according to claim 4, characterized in that: The end of the free end is provided with a protruding tooth, and the protruding tooth has a tooth tip.

6. The elastic connector according to claim 4 or 5, characterized in that: At least one of the ear pieces is provided with at least one limiting protrusion at a position closer to the cable bearing portion than the mounting hole; each of the limiting protrusions protrudes toward the inside of the first U-shaped groove.

7. The elastic connector according to claim 6, characterized in that: Limiting protrusions are arranged on both ear pieces, and each of the limiting protrusions on one ear piece is distributed relative to each of the limiting protrusions on the other ear piece.

8. The elastic connector according to claim 6, characterized in that: Along the extension direction of the center line of the first U-shaped groove and along the direction close to the opening of the first U-shaped groove, the protrusion height of each of the limiting protrusions on at least one of the ear pieces increases.

9. The elastic connector according to claim 6, characterized in that: The surface of the limiting protrusion is arc-shaped.

10. The elastic connector according to any one of claims 4-5 and 7-9, characterized in that: The elastic connecting piece is made of a metal plate and is an integral structure.

11. A photovoltaic system, characterized in that: include: A photovoltaic module, a fastener, a cable, and an elastic connector as claimed in any one of claims 1 to 10; The cable passes through the cable bearing portion of the elastic connector; The fastener passes through the mounting hole, and the fastener is fastened, so that the two ears and the cable bearing part hold the cable together; The mounting plate at the bottom of the frame of the photovoltaic module is embedded in the second U-shaped groove, and the cavity of the frame of the photovoltaic module is placed on the portion of the opening of the first U-shaped groove that is flush with the ear piece.

12. The photovoltaic system according to claim 11, characterized in that: The elastic connector also includes: two oppositely arranged support parts, connected to the fixing part, and located at the opening of the first U-shaped groove; the two support parts extend in a direction away from the center line of the first U-shaped groove, and each of the support parts has a support surface that is flush with the groove wall of the second U-shaped groove close to the cable bearing part, and the cavity of the frame of the photovoltaic component is placed on the support surface.

13. The photovoltaic system according to claim 11, characterized in that: At least one of the ear pieces is provided with at least one limiting protrusion at a position closer to the cable bearing portion than the mounting hole; each of the limiting protrusions protrudes toward the inside of the first U-shaped groove; The limiting protrusion abuts against the surface of the cable.

14. The photovoltaic system according to any one of claims 11 to 13, characterized in that: Each of the frame connecting parts also includes: a tongue piece, which extends toward the cable bearing part and has a free end close to the cable bearing part, the end of the free end is farther away from the groove wall of the cable bearing part than the second U-shaped groove and closer to the cable bearing part, and the end of the free end is provided with a convex tooth, and the convex tooth has a tooth tip; the tooth tip of the convex tooth bites and embeds into the mounting plate.

15. The photovoltaic system according to any one of claims 11 to 13, characterized in that: The fastener comprises a square neck; the mounting hole comprises a square mounting hole, the square neck of the fastener passes through the square mounting hole and is clamped in the square mounting hole.

16. The photovoltaic system according to claim 15, characterized in that: The square mounting hole comprises: a square mounting light hole; The fastener comprises a carriage screw, the square neck of which is clamped in the square mounting hole.

Images