Photovoltaic module mounting structure and mounting method thereof

Abstract

The invention discloses a photovoltaic module installation structure and method, and the structure comprises two purlines which are disposed at an interval and extend along an X axis, and a frame assembly which is connected to the two purlines through an edge clamp assembly, and the top end of the edge clamp assembly is lower than the top surface of the frame assembly, thereby preventing the projection of the edge clamp assembly from being projected on a photovoltaic panel on the frame assembly. The photovoltaic panel generating capacity is ensured; the frame assembly comprises a frame main body for installing a photovoltaic panel, an installation groove is formed in the outer side of the frame main body, each edge clamp assembly comprises an edge pressing block connected to the installation groove and an edge locking assembly connected to the edge pressing block and a purline, and the connection position of the frame assembly and the purline is connected with the edge clamp assembly. The connecting strength of the frame assembly connected to the purline is improved, additional punching is not needed, and installation is convenient and fast; the inner bottom surface of the mounting groove is lower than the notch of the mounting groove, and the edge pressing block is partially embedded into the mounting groove, so that the edge pressing block can be prevented from sliding out of the mounting groove, and the connection stability of the frame assembly connected to the purline is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic installation, in particular to a photovoltaic module installation structure and a method thereof. BACKGROUND

[0002] There are two categories of existing related photovoltaic module installation methods, the first category is to use traditional frames to punch holes, use screws to pass into the holes to achieve installation, which specifically requires workers to punch multiple installation holes on each module, then align the module with the support installation position, then insert the screws and lock them one by one, this installation method has low installation efficiency, consumes more labor hours, and has high construction cost; the other category is to use edge blocks, which are pressed on the surface of the module frame, and the clamping force of the edge blocks stabilizes the module, in order to clamp the frame, the edge blocks must be made to be 5-8 millimeters higher than the surface of the module, this installation method saves the tedious operation of punching holes and installing screws, but when the early and late solar elevation angles are lower than 30 degrees, the shadow of the edge block will be projected on the photovoltaic panel, the photovoltaic panel will not be fully illuminated, thereby affecting the power generation of the photovoltaic panel, if it encounters overcast weather or lower solar angle in winter, the shadow time will be longer, which will cause more power generation loss. SUMMARY

[0003] Therefore, the present application solves the problem of the existing photovoltaic panel installation component that the shadow is projected on the photovoltaic panel, which causes the photovoltaic panel to not be fully illuminated and affects the power generation, thereby providing a photovoltaic module installation structure and a method thereof.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows: A photovoltaic module installation structure, comprising at least two purlins arranged at intervals and extending along the X axis, a frame assembly connected to the two purlins by an edge clamp assembly, the top end of the edge clamp assembly away from the purlin is lower than the top surface of the frame assembly away from the purlin, and the outer side of the frame assembly is connected with the edge clamp assembly at four connection positions of the two purlins; the frame assembly comprises a frame main body adapted to install a photovoltaic panel, an installation slot is formed in the middle of the outer side edge of the frame main body, the edge clamp assembly comprises an edge block connected to the installation slot, and an edge locking assembly connected to the edge block and the purlin, the inner bottom surface of the installation slot is lower than the slot opening, and the edge block partially penetrates into the slot opening and is embedded in the installation slot.

[0005] Further, the edge pressing block is L-shaped, the first end of the edge pressing block abuts against the purlin, and the edge locking assembly is connected to the middle of the second end of the edge pressing block; the second end of the edge pressing block is provided with an edge L-shaped hook, the first end of the edge L-shaped hook is connected to the upper end surface of the edge pressing block, the upper end surface of the edge L-shaped hook is lower than the upper end surface of the edge pressing block, and the second end of the edge L-shaped hook is embedded in the mounting groove; the length of the second end of the edge L-shaped hook is the same as the height of the groove mouth of the mounting groove, and the length of the second end of the edge L-shaped hook is greater than the height of the outer wall of the mounting groove close to the groove mouth.

[0006] Further, the edge locking assembly comprises a bolt screwed to the edge pressing block and the purlin and a nut screwed to the bolt; the purlin is a C-shaped purlin, and the opening of the C-shaped purlin faces the edge frame assembly; and the width of the nut is greater than the opening width of the C-shaped purlin.

[0007] Further, the second end of the edge pressing block close to the purlin is provided with a limiting block, the outer wall of the mounting groove close to the groove mouth is located between the limiting block and the second end of the edge L-shaped hook; a pin is provided through the limiting block, a tapered bushing is provided on the outer wall of the bolt, the outer diameter of one end of the tapered bushing close to the purlin is smaller, and the two ends of the pin abut against the outer side wall of the edge frame body and the outer wall of the tapered bushing, respectively.

[0008] Further, the tapered bushing is provided with a spring around the outer periphery, and the spring is located between the head end of the bolt and the edge pressing block.

[0009] Further, the edge frame assembly is provided with a plurality of edge frame assemblies at intervals on the two purlins, a middle clamp assembly is connected between adjacent two edge frame assemblies, the middle clamp assembly comprises a middle pressing block connected to adjacent two edge frame bodies and a middle locking assembly connected to the middle pressing block and the corresponding purlin.

[0010] Further, the middle pressing block is an n-shaped pressing block, the middle locking assembly penetrates the middle of the n-shaped pressing block, the opposite sides of the n-shaped pressing block are limiting arms, the middle L-shaped hook is provided on the outer wall of each of the two limiting arms close to the corresponding edge frame body, the structure of the limiting arm is the same as that of the limiting block, the structure of the middle L-shaped hook is the same as that of the edge L-shaped hook, and the structure of the middle locking assembly is the same as that of the edge locking assembly.

[0011] Further, a sealing structure is provided between adjacent two edge frame assemblies above the middle locking assembly and the edge locking assembly.

[0012] A mounting method of a photovoltaic module mounting structure as described above, comprising the following steps: S1: install two purlins on the installation surface of the installation scene, and set the purlin opening to face away from the installation surface; S2: install the frame assembly with photovoltaic panels on the two purlins; S3: install the side pressing block in the installation groove on the side of the frame body; S4: lock the side pressing block on the purlin using the locking assembly.

[0013] Further, when at least two frame assemblies are installed, the middle pressing block is used to connect the two adjacent frame bodies to the purlin, and the side pressing block is used to connect the side of the two frame bodies that is not adjacent to the purlin.

[0014] The technical scheme of the present application has the following advantages: 1. The photovoltaic assembly installation structure provided by the present application can prevent the projection of the side clamp assembly from being projected on the photovoltaic panel on the frame assembly, thereby effectively ensuring the power generation capacity of the photovoltaic panel; the side pressing block embedded in the installation groove on the side clamp assembly and the side locking assembly locked on the side pressing block and the purlin can prevent the side pressing block from sliding out of the installation groove, thereby effectively ensuring the connection stability of the frame assembly on the purlin; the four connection positions between the outer side of the frame assembly and the two purlins are connected with the side clamp assembly, thereby further improving the connection strength of the frame assembly on the purlin; and each frame assembly and the same group of two purlins are connected stably through only four side pressing blocks and side locking assemblies, without the need for additional punching, thereby making the installation more convenient and fast.

[0015] 2. The photovoltaic assembly installation structure provided by the present application, wherein the side pressing block is L-shaped, the first end of the side pressing block abuts against the purlin, and the side locking assembly is connected to the middle of the second end of the side pressing block; the second end of the side pressing block is provided with a side L-shaped hook, the upper end surface of the first end of the side pressing block is lower than the upper end surface of the side pressing block, and the second end of the side L-shaped hook is embedded in the installation groove; the length of the second end of the side L-shaped hook is the same as the height of the groove opening of the installation groove, and the length of the second end of the side L-shaped hook is greater than the height of the outer wall of the installation groove close to the groove opening. In this way, by embedding the side L-shaped hook in the installation groove and making the length of the second end of the side L-shaped hook the same as the height of the groove opening of the installation groove, the side pressing block can be disconnected from the installation groove without human intervention; by making the length of the second end of the side L-shaped hook greater than the height of the outer wall of the installation groove close to the groove opening, the second end of the side L-shaped hook can abut against the bottom wall of the installation groove, and under the locking force of the side locking assembly, the second end of the side L-shaped hook of the side pressing block can be tightly fitted with the inner bottom wall of the installation groove on the frame side wall, thereby effectively ensuring the tightness of the connection between the frame assembly and the purlin.

[0016] 3. The photovoltaic module mounting structure provided by the present application, the edge locking assembly comprises a bolt screwed to the edge block and the purlin, and a nut screwed to the bolt; the purlin is a C-shaped purlin, the opening of the C-shaped purlin faces the edge frame assembly, and the width of the nut is greater than the width of the opening of the C-shaped purlin. In this way, the edge block is connected to the purlin by using the bolt and the nut, and the purlin is a C-shaped structure with an opening, which can greatly reduce the installation difficulty and effectively improve the work efficiency; meanwhile, the width of the nut is greater than the width of the opening of the C-shaped purlin, which can prevent the edge locking assembly from being separated from the C-shaped purlin, thereby effectively ensuring the connection stability between the edge frame assembly and the purlin.

[0017] 4. The photovoltaic module mounting structure provided by the present application, the second end of the edge block is provided with a limiting block close to one side of the purlin, the outer wall of the mounting groove close to the slot is located between the limiting block and the second end of the edge L-shaped clamping hook, a pin is provided through the limiting block, the outer wall of the bolt is provided with a tapered bushing, the outer diameter of one end of the tapered bushing close to the purlin is smaller, and the two ends of the pin are respectively abutted to the outer side wall of the edge frame body and the outer wall of the tapered bushing. In this way, when the bolt is locked, the pin moves towards the outer side wall of the edge frame body under the extrusion of the tapered bushing until the pin is tightly abutted between the tapered bushing and the edge frame body, so that the edge clamp assembly and the edge frame assembly are locked, thereby achieving the anti-slip effect between the edge frame assembly and the edge clamp assembly.

[0018] 5. The photovoltaic module mounting structure provided by the present application, the outer periphery of the tapered bushing is provided with a spring, and the spring is located between the head end of the bolt and the edge block. In this way, the tapered bushing can be pressed down under the pushing of the locking force of the bolt, and at the same time the spring is contracted, the tapered surface of the tapered bushing applies a pushing force to the pin, so that the pin is abutted and locked with the edge frame; after the bolt is loosened and the pressure is released, the spring rebounds and extrudes the tapered bushing under the elastic stress of the spring, the pushing force on the pin is released, and the pin pressure is released, so that the edge clamp assembly can be disassembled.

[0019] 6. The photovoltaic module mounting structure provided by the present application, a plurality of edge frame assemblies are arranged at intervals on two purlins, a middle clamp assembly is connected between two adjacent edge frame assemblies, the middle clamp assembly comprises a middle block connecting two adjacent edge frame bodies and a middle locking assembly connecting the middle block and the corresponding purlin. In this way, the middle clamp assembly is used to connect two adjacent edge frame assemblies, which can keep the height uniformity of the two edge frame assemblies, improve the flatness when multiple photovoltaic panels are combined, and thus ensure the light receiving integrity when the photovoltaic panels are combined.

[0020] 7. The photovoltaic module mounting structure provided by the present application, wherein the middle pressing block is an n-type pressing block, the middle locking assembly penetrates the middle of the n-type pressing block, the opposite sides of the n-type pressing block are limiting arms, the limiting arms are provided with middle L-shaped clamping hooks close to the outer walls of the corresponding frame bodies, the limiting arm structure is the same as the limiting block structure, the middle L-shaped clamping hook structure is the same as the side L-shaped clamping hook structure, and the middle locking assembly and the side locking assembly are the same in structure. In this way, the connection strength of the adjacent two frame assemblies connected to the purlin can be ensured.

[0021] 8. The photovoltaic module mounting structure provided by the present application, wherein a sealing structure is arranged between the adjacent two frame assemblies above the middle locking assembly and the side locking assembly. In this way, the waterproof effect of the photovoltaic panel combination can be improved, the integrity of the photovoltaic panel combination can be ensured, and the structural strength and connection stability of the photovoltaic panel combination can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0023] Figure 1 A perspective view of the photovoltaic module mounting structure provided by the present application; Figure 2 An installation position schematic view of the side pressing block and the middle pressing block provided by the present application; Figure 3 An installation position schematic view of the side pressing block provided by the present application; Figure 4 An installation position schematic view of the middle pressing block provided by the present application; Figure 5 A structure schematic view of A shown in the figure; Figure 3 A structure schematic view of B shown in the figure; Figure 6 A structure schematic view of C shown in the figure; Figure 4 A structure schematic view of D shown in the figure; Figure 7 A partial cross-sectional perspective view of the frame body provided by the present application; Figure 8 A perspective view of the side clamp assembly provided by the present application; Figure 9 A perspective view of the middle clamp assembly provided by the present application; 1, purlin; 2, frame main body; 21, mounting groove; 22, groove; 3, edge pressing block; 31, edge L-shaped hook; 32, limiting block; 33, pin; 4, middle pressing block; 41, middle L-shaped hook; 42, limiting arm; 5, edge locking assembly; 51, bolt; 52, nut; 53, conical bushing; 54, spring; 55, bolt head end; 6, middle locking assembly; 7, main beam; 71, angle support; 72, expansion bolt. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] As Figures 1-9The photovoltaic module installation structure shown comprises two purlins 1 arranged in the same group and spaced apart and extending along the X axis, a frame assembly connected to the two purlins 1 through an edge clamp assembly, the top end of the edge clamp assembly away from the purlin 1 being lower than the top surface of the frame assembly away from the purlin 1, and the outer side of the frame assembly being connected with the edge clamp assembly at four connection positions of the two purlins 1; the frame assembly comprises a frame main body 2 adapted to install a photovoltaic panel, a mounting groove 21 being formed in the middle of the outer side edge of the frame main body 2, the edge clamp assembly comprising an edge pressing block 3 connected to the mounting groove 21 and an edge locking assembly 5 connected to the edge pressing block 3 and the purlin 1, the inner bottom surface of the mounting groove 21 being lower than the groove opening 22 thereof, and the edge pressing block 3 partially penetrating into the groove opening 22 and being embedded in the mounting groove 21.

[0029] The photovoltaic module installation structure can prevent the projection of the edge clamp assembly from being projected on the photovoltaic panel on the frame assembly, so as to effectively ensure the power generation of the photovoltaic panel; the edge pressing block 3 embedded in the mounting groove 21 of the edge clamp assembly and the edge locking assembly 5 connected to the edge pressing block 3 and the purlin 1 can prevent the edge pressing block 3 from sliding out of the mounting groove 21, so as to effectively ensure the connection stability of the frame assembly connected to the purlin 1; the outer side of the frame assembly is connected with the edge clamp assembly at four connection positions of the two purlins 1, so as to further improve the connection strength of the frame assembly connected to the purlin 1; meanwhile, each frame assembly and the two purlins 1 in the same group are connected stably through only four edge pressing blocks 3 and edge locking assemblies 5, without the need of additional punching, so that the installation is more convenient and fast.

[0030] In the embodiment, a plurality of main beams 7 are also arranged spaced apart and extending along the Y axis, and a plurality of frame assemblies arranged in an array and spaced apart are connected to the main beams 7; specifically, the main beams 7 are fixedly arranged on a scene installation surface, and the purlins 1 are fixedly connected to the main beams 7; specifically, a plurality of corner brace supports 71 connected to the installation surface are arranged on opposite sides of the main beam 7, and an expansion screw fixed to the installation surface is arranged on each corner brace support 71; in this way, the connection stability of the photovoltaic module installation structure connected to the scene installation surface can be ensured.

[0031] In the embodiment, the edge block 3 is L-shaped, the first end of the edge block 3 abuts against the purlin 1, and the edge locking assembly 5 is connected to the middle of the second end of the edge block 3; the second end of the edge block 3 is provided with an edge L-shaped hook 31, the first end of the edge L-shaped hook 31 is connected to the upper end surface of the edge block 3, the lower end surface of the edge L-shaped hook 31 is lower than the upper end surface of the edge block 3, and the second end of the edge L-shaped hook 31 is embedded in the installation groove 21; the length of the second end of the edge L-shaped hook 31 is the same as the height of the slot 22 of the installation groove 21, and the length of the second end of the edge L-shaped hook 31 is greater than the height of the outer wall of the installation groove 21 close to the slot 22. In this way, by embedding the edge L-shaped hook 31 in the installation groove 21 and making the length of the second end of the edge L-shaped hook 31 the same as the height of the slot 22 of the installation groove 21, the edge block 3 can be disconnected from the installation groove 21 without human intervention; by making the length of the second end of the edge L-shaped hook 31 greater than the height of the outer wall of the installation groove 21 close to the slot 22, the second end of the edge L-shaped hook 31 can abut against the bottom wall of the installation groove 21, and under the action of the locking force of the edge locking assembly 5, the second end of the edge L-shaped hook 31 of the edge block 3 is tightly attached to the inner bottom wall of the installation groove 21 of the side wall of the frame, which can effectively ensure the tightness of the connection between the frame assembly and the purlin 1.

[0032] In the embodiment, the edge locking assembly 5 includes a bolt 51 screwed to the edge block 3 and the purlin 1 and a nut 52 screwed to the bolt 51; the purlin 1 is a C-shaped purlin 1, the opening of the C-shaped purlin 1 faces the frame assembly, and the width of the nut 52 is greater than the width of the opening of the C-shaped purlin 1. In this way, the edge block 3 is connected to the purlin 1 by using the bolt 51 and the nut 52, and the purlin 1 has a C-shaped structure with an opening, which can greatly reduce the installation difficulty and effectively improve the work efficiency; at the same time, the width of the nut 52 is greater than the width of the opening of the C-shaped purlin 1, which can prevent the edge locking assembly 5 from being disconnected from the C-shaped purlin 1, thereby effectively ensuring the stability of the connection between the frame assembly and the purlin 1.

[0033] In the embodiment, the second end of the edge block 3 close to the purlin 1 is provided with a limiting block 32, and the outer wall of the installation groove 21 close to the slot 22 is located between the limiting block 32 and the second end of the edge L-shaped hook 31; a pin 33 is penetratingly arranged on the limiting block 32, a conical bushing 53 is arranged on the outer wall of the bolt 51, the outer diameter of the end of the conical bushing 53 close to the purlin 1 is smaller, and the two ends of the pin 33 abut against the outer side wall of the frame body 2 and the outer wall of the conical bushing 53, respectively. In this way, when the bolt 51 is locked, the pin 33 moves towards the outer side wall of the frame body 2 under the extrusion of the conical bushing 53 until the pin 33 is tightly attached between the conical bushing 53 and the frame body 2, so that the edge clamp assembly and the frame assembly are locked, thereby achieving the anti-slip effect between the frame assembly and the edge clamp assembly.

[0034] In the embodiment, the spring 54 is sleeved on the outer periphery of the conical bushing 53 and is located between the head end of the bolt 51 and the edge pressing block 3. In this way, the conical bushing 53 can be pressed downward under the pushing of the locking force of the bolt 51, and at the same time, the spring 54 is contracted, the conical surface of the conical bushing 53 applies a pushing force to the pin 33, and the pin 33 is locked in abutment with the frame; after the bolt 51 is loosened and the pressure is released, the spring 54 rebounds and pushes the conical bushing 53 under the elastic stress of the spring 54, the pushing force on the pin 33 is released, and the pressure of the pin 33 is released, so that the edge clamp assembly can be disassembled.

[0035] In the embodiment, the frame assemblies are arranged at intervals on the two purlins 1, and a middle clamp assembly is connected between the two adjacent frame assemblies. The middle clamp assembly includes a middle pressing block 4 connected to the adjacent two frame bodies 2 and a middle locking assembly 6 connected to the corresponding purlin 1. In this way, the two adjacent frame assemblies are connected by the middle clamp assembly, which can keep the height uniformity of the two frame assemblies and improve the flatness when the multiple photovoltaic panels are combined, thereby ensuring the light receiving integrity when the photovoltaic panels are combined.

[0036] In the embodiment, the middle pressing block 4 is an n-shaped pressing block, the middle locking assembly 6 penetrates the middle of the n-shaped pressing block, the opposite sides of the n-shaped pressing block are limiting arms 42, and the two limiting arms 42 are provided with middle L-shaped hooks 41 close to the outer walls of the corresponding frame bodies 2. The structure of the limiting arm 42 is the same as that of the limiting block 32, the structure of the middle L-shaped hook 41 is the same as that of the edge L-shaped hook 31, and the structure of the middle locking assembly 6 is the same as that of the edge locking assembly 5. In this way, the connection strength of the two adjacent frame assemblies connected to the purlin 1 can be ensured.

[0037] In the embodiment, a sealing structure is arranged between the two adjacent frame assemblies above the middle locking assembly 6 and the edge locking assembly 5. In this way, the waterproof effect when the photovoltaic panels are combined can be improved, the integrity when the photovoltaic panels are combined can be ensured, and the structural strength and connection stability when the photovoltaic panels are combined can be improved. Specifically, the sealing structure can be a sealing glue or a sealing cover with a top height not higher than that of the frame assembly. In this way, the clamp assembly can be hidden, and the overall appearance can be improved.

[0038] A mounting method of the photovoltaic panel mounting structure as described above, comprising the following steps: S1: Intermittently mounting two purlins 1 on the mounting surface of the mounting scene, and arranging the purlins 1 with the openings facing away from the mounting surface; S2: Mounting the frame assembly with the photovoltaic panel on the two purlins 1; S3: Mounting the edge pressing block 3 in the mounting groove 21 on the side edge of the frame body 2; S4: Locking the edge pressing block 3 to the purlin 1 by using the locking assembly.

[0039] In the present embodiment, when two frame assemblies are installed, the two frame bodies 2 are connected to the purlin 1 by using the middle pressing block 4 between the two adjacent frame bodies 2, and the side edges of the two frame bodies 2 which are not adjacent are connected to the purlin 1 by using the side pressing block 3.

[0040] In the present embodiment, the installation scene can be a vertical wall or an inclined roof. Before the step S1, the main beam 7 is fixedly installed on the vertical wall or the inclined roof, and then the purlin 1 is fixedly installed on the main beam 7.

[0041] Obviously, the above embodiments are merely exemplary and are not intended to limit the implementation. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to exhaust all the implementations. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A photovoltaic module mounting structure, characterized by, The utility model provides a photovoltaic module frame assembly, which comprises at least two purlins (1) arranged at intervals and extending along an X axis, a frame assembly connected to the two purlins (1) by a side clamping assembly, the side clamping assembly being lower than the top surface of the frame assembly away from the top end of the purlin (1), and the side clamping assembly being connected to the frame assembly at four connection positions on the outer side of the two purlins (1), the frame assembly comprising a frame main body (2) adapted to mount a photovoltaic panel, a mounting groove (21) being formed in the middle of the outer side edge of the frame main body (2), the side clamping assembly comprising a side pressing block (3) connected to the mounting groove (21) and a side locking assembly (5) connected to the side pressing block (3) and the purlin (1), the bottom surface of the mounting groove (21) being lower than the groove opening (22) thereof, and the side pressing block (3) partially penetrating into the groove opening (22) and being embedded in the mounting groove (21).

2. The photovoltaic module mounting structure of claim 1, wherein The side pressing block (3) is L-shaped, the first end of the side pressing block (3) abutting against the purlin (1), and the side locking assembly (5) being connected to the middle of the second end of the side pressing block (3), the second end of the side pressing block (3) being provided with a side L-shaped clamping hook (31), the side L-shaped clamping hook (31) being connected to the first end of the side pressing block (3) and being lower than the upper end surface of the side pressing block (3), the second end of the side L-shaped clamping hook (31) being embedded in the mounting groove (21), the length of the second end of the side L-shaped clamping hook (31) being the same as the height of the groove opening (22) of the mounting groove (21), and the length of the second end of the side L-shaped clamping hook (31) being greater than the height of the outer wall of the mounting groove (21) close to the groove opening (22).

3. The photovoltaic module mounting structure of claim 2, wherein, The side locking assembly (5) comprises a bolt (51) screwed to the side pressing block (3) and the purlin (1) and a nut (52) screwed to the bolt (51), the purlin (1) is a C-shaped purlin (1), the opening of the C-shaped purlin (1) facing the frame assembly, and the width of the nut (52) is greater than the width of the opening of the C-shaped purlin (1).

4. The photovoltaic module mounting structure of claim 3, wherein The side of the second end of the side pressing block (3) close to the purlin (1) is provided with a limiting block (32), the outer wall of the mounting groove (21) close to the groove opening (22) is located between the limiting block (32) and the second end of the side L-shaped clamping hook (31), a pin (33) is arranged through the limiting block (32), a conical bushing (53) is arranged on the outer wall of the bolt (51), the outer diameter of one end of the conical bushing (53) close to the purlin (1) is smaller, and the two ends of the pin (33) abut against the outer side wall of the frame main body (2) and the outer wall of the conical bushing (53) respectively.

5. The photovoltaic module mounting structure of claim 4, wherein, A spring (54) is arranged on the outer periphery of the conical bushing (53), and the spring (54) is located between the head end of the bolt (51) and the side pressing block (3).

6. The photovoltaic module mounting structure of claim 5, wherein, The frame assembly is provided with a plurality of frame assemblies on two purlins (1) at intervals, and a middle clamp assembly is connected between adjacent two frame assemblies, the middle clamp assembly comprises a middle pressing block (4) connecting adjacent two frame bodies (2), and the middle pressing block (4) is connected with a middle locking assembly (6) corresponding to the purlin (1).

7. The photovoltaic module mounting structure of claim 6, wherein The middle pressing block (4) is an n-shaped pressing block, the middle locking assembly (6) penetrates the middle of the n-shaped pressing block, and opposite sides of the n-shaped pressing block are limiting arms (42), two limiting arms (42) are provided with middle L-shaped hooks (41) close to the outer wall of the corresponding frame body (2), the structure of the limiting arm (42) is the same as that of the limiting block (32), the structure of the middle L-shaped hook (41) is the same as that of the edge L-shaped hook (31), and the structure of the middle locking assembly (6) is the same as that of the edge locking assembly (5).

8. The photovoltaic module mounting structure of claim 7, wherein, Adjacent two frame assemblies are provided with a sealing structure above the middle locking assembly (6) and the edge locking assembly (5).

9. A method of installing a photovoltaic module mounting structure according to any one of claims 1 to 8, characterized by, The method comprises the following steps: S1: two purlins (1) are installed on the installation surface of the installation scene at intervals, and the opening of the purlin (1) faces away from the installation surface; S2: the frame assembly provided with the photovoltaic panel is installed on the two purlins (1); S3: the edge pressing block (3) is installed in the installation groove (21) on the side edge of the frame body (2); S4: the edge pressing block (3) is locked and connected to the purlin (1) by using the locking assembly.

10. The photovoltaic module mounting structure mounting method according to claim 9, wherein When at least two frame assemblies are installed, the middle pressing block (4) is used to connect the purlin (1) between adjacent two frame bodies (2), and the edge pressing block (3) is used to connect the purlin (1) on the side edge of the two frame bodies (2) which are not adjacent.

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