Photovoltaic module frame fixing structure and photovoltaic system

Abstract

This application relates to a photovoltaic module frame fixing structure and a photovoltaic system. The photovoltaic module frame fixing structure includes a clamping component and a fastening sleeve. The clamping component abuts against a guide rail and presses the frame onto the guide rail. The clamping component has a mating part, and its length is adjustable to adjust the distance between the mating part and the frame. The fastening sleeve is fitted onto the clamping component and the guide rail and engages with the mating part to fix the clamping component onto the guide rail. In this application, the adjustable length of the clamping component allows for adjustment of the distance between the mating part and the frame. The fastening sleeve, engaging with the mating part, allows for adjustable distance between the fastening sleeve and the frame when fitted onto the clamping component and the guide rail. This allows the fastening sleeve to avoid the inclined beam below the guide rail, ensuring the clamping component is fixed onto the guide rail and thus stably pressing the frame onto the guide rail.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to photovoltaic module frame fixing structures and photovoltaic systems. Background Technology

[0002] During the installation of photovoltaic modules, in order to prevent workers from stepping on the photovoltaic modules, a method of fixing the back panel of the photovoltaic modules with a pressure plate is usually adopted. Specifically, one end of the pressure plate presses down on the back of the module, and the other end is fixed to the guide rail with a clamp. However, during on-site construction, there may be a situation where the clamp collides with the inclined beam, making it impossible to fix the pressure plate on the guide rail. Utility Model Content

[0003] Therefore, it is necessary to provide a photovoltaic module frame fixing structure to address the problem in the existing technology where the clamps collide with the inclined beams during the installation of photovoltaic modules, making it impossible to fix the lower pressure plate on the guide rail.

[0004] A photovoltaic module frame fixing structure includes:

[0005] A pressing assembly is used to abut against a guide rail and to press a frame onto the guide rail. The pressing assembly has a mating part and the length of the pressing assembly is adjustable to adjust the distance between the mating part and the frame.

[0006] A fastening sleeve is used to fit over the clamping assembly and the guide rail, and to cooperate with the mating part to fix the clamping assembly on the guide rail.

[0007] In one embodiment, the clamping assembly includes:

[0008] A pressing block, used to press the frame onto the guide rail;

[0009] A snap-fit ​​block, one end of which is used to abut against the guide rail, and the other end is movably connected to the pressure block. The mating part is provided on the snap-fit ​​block, and the snap-fit ​​block passes through the fastening sleeve to fix it on the guide rail.

[0010] In one embodiment, one of the pressing block and the snap-fit ​​block is provided with a connecting groove, and the other is provided with a protrusion, the protrusion being inserted into the connecting groove.

[0011] In one embodiment, one of the groove wall of the connecting groove and the outer wall of the protrusion is provided with at least one locking tooth, and the other is provided with at least two tooth grooves that cooperate with the locking tooth. The locking tooth and / or the tooth grooves are arranged along the length direction of the clamping assembly on the groove wall of the connecting groove or the outer wall of the protrusion. The locking tooth cooperates with the tooth grooves at different positions to realize the length adjustment of the clamping assembly.

[0012] In one embodiment, the pressure block is provided with a connecting part for connecting with the guide rail.

[0013] In one embodiment, the connecting portion is configured as either a slot or a protrusion, and the connecting portion is used to engage with the protrusion or slot on the guide rail.

[0014] In one embodiment, the connecting portion is configured as the slot, the slot including a first slot segment and a second slot segment that are interconnected, the width of the second slot segment being greater than the width of the first slot segment to form a stepped wall between the first slot segment and the second slot segment, the stepped wall being used to abut against a limiting wall on the side wall of the protrusion to limit the pressure block from moving away from the guide rail.

[0015] In one embodiment, the pressure block has anti-slip serrations on the side away from the latching block, the anti-slip serrations being used to abut against the frame; and / or, the latching block has an anti-slip pad on the side away from the pressure block, the anti-slip pad being used to abut against the guide rail.

[0016] In one embodiment, the snap-fit ​​block is provided with a limiting groove, and the fastening sleeve is partially accommodated in the limiting groove to limit the relative position of the fastening sleeve and the snap-fit ​​block. The limiting groove is configured as the mating part.

[0017] This application also provides a photovoltaic system capable of solving at least one of the above-mentioned technical problems.

[0018] A photovoltaic system includes the aforementioned photovoltaic module frame fixing structure, and further includes a guide rail and a frame, wherein the frame is placed on the guide rail, the photovoltaic module frame fixing structure is installed on the guide rail, and the frame is pressed onto the guide rail.

[0019] Beneficial effects:

[0020] The photovoltaic module frame fixing structure provided in this application includes a clamping component and a fastening sleeve. The clamping component abuts against a guide rail and presses the extended edge of the frame onto the guide rail. The clamping component has a mating part, and its length is adjustable to adjust the distance between the mating part and the frame. The fastening sleeve is fitted onto the clamping component and the guide rail and engages with the mating part to fix the clamping component onto the guide rail. In this application, the adjustable length of the clamping component allows for adjustment of the distance between the mating part and the frame. The fastening sleeve engages with the mating part, allowing for adjustable distance between the fastening sleeve and the frame when fitted onto the clamping component and the guide rail. This enables the fastening sleeve to avoid the inclined beam below the guide rail, ensuring the clamping component is fixed onto the guide rail and thus stably pressing the frame onto the guide rail.

[0021] This application also provides a photovoltaic system, including the aforementioned photovoltaic module frame fixing structure, a guide rail, and a frame. The frame is placed on the guide rail, and the photovoltaic module frame fixing structure is mounted on the guide rail, pressing the frame onto the guide rail. This photovoltaic system can achieve at least one of the aforementioned technical effects. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the cooperation between the clamping component, the guide rail, and the frame in a photovoltaic module frame fixing structure provided in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the fastening sleeve in the photovoltaic module frame fixing structure provided in an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the pressure block in the photovoltaic module frame fixing structure provided in an embodiment of this application.

[0025] Figure 4 This is a schematic diagram of a snap-fit ​​block in a photovoltaic module frame fixing structure provided in an embodiment of this application.

[0026] Figure 5 This is a schematic diagram of the guide rail in a photovoltaic system provided in an embodiment of this application.

[0027] Icon labels:

[0028] 100-Clamping assembly; 110-Clamping block; 111-Connecting groove; 112-Groove; 113-Card slot; 114-First groove segment; 115-Second groove segment; 116-Step wall; 117-Anti-slip serrations; 118-First weight-reducing hole; 120-Snap block; 121-Protrusion; 122-Snap tooth; 123-Matching part; 124-Anti-slip pad; 125-Second weight-reducing hole; 126-Limiting groove; 200-Fastening sleeve; 210-Clamping U-shaped screw; 220-Clamping pressure plate; 230-Nut; 300-Guide rail; 310-Card protrusion; 320-Limiting wall; 330-First protrusion segment; 340-Second protrusion segment; 400-Frame; 410-Extension edge; 500-Inclined beam. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram showing the cooperation between the clamping component, the guide rail, and the frame in a photovoltaic module frame fixing structure provided in an embodiment of this application. Figure 2 This is a schematic diagram of a fastening sleeve in a photovoltaic module frame fixing structure provided in an embodiment of this application. The photovoltaic module frame fixing structure provided in an embodiment of this application includes a pressing component 100 and a fastening sleeve 200. The pressing component 100 is used to abut against a guide rail 300 and to press a frame 400 onto the guide rail 300. The pressing component 100 has a mating portion 123, and the pressing component 100 is telescopic to adjust the distance between the mating portion 123 and the frame 400. The fastening sleeve 200 is used to sleeve on the pressing component 100 and the guide rail 300, and cooperates with the mating portion 123 to fix the pressing component 100 onto the guide rail 300.

[0036] Specifically, in this application, the length of the clamping component 100 is adjustable, so the distance between the mating part 123 and the frame 400 can be adjusted. The fastening sleeve 200 cooperates with the mating part 123, so that when the fastening sleeve 200 is fitted on the clamping component 100 and the guide rail 300, the distance between the fastening sleeve 200 and the frame 400 is adjustable. This allows the fastening sleeve 200 to avoid the inclined beam 500 below the guide rail 300, so as to ensure that the clamping component 100 is fixed on the guide rail 300, thereby stably pressing the frame 400 onto the guide rail 300 and improving the installation stability of the photovoltaic module.

[0037] It should be noted that the inclined beam 500 is located below the guide rail 300, and the guide rail 300 is mounted on the inclined beam 500. The inclined beam 500 supports the guide rail 300. When the clamping assembly 100 is mounted on the guide rail 300, the length direction of the clamping assembly 100 is approximately parallel to the length direction of the guide rail 300. Preferably, the length direction of the clamping assembly 100 is parallel to the length direction of the guide rail 300.

[0038] In this application, the side of the frame 400 facing the guide rail 300 has an extension edge 410 extending toward the clamping assembly 100. The clamping assembly 100 is used to press the extension edge 410 of the frame 400 onto the guide rail 300, thereby avoiding interference of the clamping assembly 100 with other structures of the frame 400.

[0039] See Figure 1 and Figure 2 In one embodiment, the clamping assembly 100 includes a clamping block 110 and a snap-fit ​​block 120; the clamping block 110 is used to press the frame 400 onto the guide rail 300; one end of the snap-fit ​​block 120 is used to abut against the guide rail 300, and the other end is movably connected to the clamping block 110; a mating part 123 is disposed on the snap-fit ​​block 120; the snap-fit ​​block 120 passes through the fastening sleeve 200 to fix it onto the guide rail 300.

[0040] Specifically, the snap-fit ​​block 120 is movably connected to the pressure block 110, thereby adjusting the overlap between the snap-fit ​​block 120 and the pressure block 110 in the length direction of the clamping assembly 100 to make the length of the clamping assembly 100 adjustable, thus making the distance between the mating part 123 and the frame 400 adjustable. By moving the snap-fit ​​block 120 relative to the pressure block 110, the distance between the mating part 123 and the frame 400 is adjusted. The fastening sleeve 200 is fitted onto the snap-fit ​​block 120 and engages with the mating part 123, thereby making the distance between the fastening sleeve 200 and the frame 400 adjustable. Furthermore, when the fastening sleeve 200 is fitted onto the snap-fit ​​block 120 and the guide rail 300 and engages with the mating part 123, the inclined beam 500 below the guide rail 300 can be avoided, ensuring that the clamping assembly 100 is fixed on the guide rail 300.

[0041] See Figure 1 and Figure 2 In one embodiment, one of the pressing block 110 and the snap-fit ​​block 120 is provided with a connecting groove 111, and the other is provided with a protrusion 121. The protrusion 121 is inserted into the connecting groove 111, thereby improving the stability of the connection between the pressing block 110 and the snap-fit ​​block 120. When the fastening sleeve 200 is fitted on the snap-fit ​​block 120 and the guide rail 300 and cooperates with the mating part 123, it can stably fix the pressing block 110 and the snap-fit ​​block 120 on the guide rail 300, so that the pressing block 110 stably presses the extension edge 410 of the frame 400 onto the guide rail 300.

[0042] See Figure 1 , Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the pressure block in the photovoltaic module frame fixing structure provided in an embodiment of this application. Figure 4This is a schematic diagram of a snap-fit ​​block in a photovoltaic module frame fixing structure provided in one embodiment of this application. In one embodiment, one of the groove wall of the connecting groove 111 and the outer wall of the protrusion 121 is provided with at least one snap tooth 122, and the other is provided with at least two tooth grooves 112 that cooperate with the snap tooth 122. The snap tooth 122 and / or tooth grooves 112 are arranged along the length direction of the pressing component 100 on the groove wall of the connecting groove 111 or the outer wall of the protrusion 121. The snap tooth 122 cooperates with the tooth grooves 112 at different positions to make the length of the pressing component 100 adjustable.

[0043] Specifically, in this application, by engaging the locking teeth 122 with the toothed grooves 112 at different positions, the length of the clamping component 100 can be adjusted, and by engaging the locking teeth 122 with the corresponding toothed grooves 112, the locking block 120 can be stably fixed at the current position of the pressure block 110, thereby improving the stability of the connection between the locking block 120 and the pressure block 110.

[0044] It should be noted that in other embodiments, when a certain pushing force is applied to the latching block 120, the latching tooth 122 can be deformed relative to the tooth groove 112, thereby allowing the latching tooth 122 to move so that the latching tooth 122 can cooperate with the tooth groove 112 at other positions to adjust the relative position of the latching block 120 and the pressure block 110 in the length direction of the pressing assembly.

[0045] Furthermore, the connecting groove 111 has toothed grooves 112 on both sides of its sidewall, and the protrusion 121 has locking teeth 122 on both sides, with at least two locking teeth 122 to improve the stability of the engagement between the locking teeth 122 and the toothed grooves 112. The connecting groove 111 has an opening in its sidewall, facilitating the insertion and removal of the protrusion 121, allowing for convenient and detachable connection between the latching block 120 and the pressing block 110. This enables the locking teeth 122 to engage with the toothed grooves 112 at different positions, facilitating the adjustment of the length of the pressing assembly 100.

[0046] In other embodiments, the protrusion 121 and the groove wall of the connecting groove 111 are slidably connected in the length direction of the pressing assembly 100 to realize the length adjustment of the pressing assembly 100, and fasteners such as screws are inserted through the groove wall of the connecting groove 111 and abut against the protrusion 121 to limit the relative position between the snap block 120 and the pressing block 110.

[0047] See Figure 1 , Figure 3 and Figure 4In one embodiment, the pressure block 110 is provided with a connecting portion for connecting with the guide rail 300, thereby improving the stability of the connection between the pressure block 110 and the guide rail 300, and improving the stability of the pressure block 110 pressing the extended edge 410 of the frame 400 onto the guide rail 300. The connection between the connecting portion and the guide rail 300 prevents the end of the pressure block 110 away from the fastening sleeve 200 from tilting relative to the guide rail 300 when the fastening sleeve 200 applies a locking force towards the guide rail 300 to the snap-fit ​​block 120, thus improving the reliability of the photovoltaic module frame fixing structure.

[0048] It should be noted that in this application, the latching block 120 and the pressure block 110 are detachably connected. By adjusting the position of the latching block 120, the latching teeth 122 can engage with the tooth grooves 112 at different positions to adjust the distance between the latching block 120 and the frame 400. That is, the position of the pressure block 110 in this application does not need to be adjusted, so the pressure block 110 can be fixed to the guide rail 300.

[0049] See Figure 1 , Figure 3 , Figure 4 and Figure 5 , Figure 5 This is a schematic diagram of a guide rail in a photovoltaic system according to an embodiment of this application. In one embodiment, the connecting part is configured as either a slot 113 or a protrusion 310, and the connecting part is used to engage with the protrusion 310 or the slot 113 on the guide rail 300.

[0050] Specifically, when the connecting part is constructed as a slot 113, the slot 113 engages with the protrusion 310 on the guide rail 300, thereby improving the stability of the connection between the pressure block 110 and the guide rail 300, so that the pressure block 110 can stably press the extended edge 410 of the frame 400 onto the guide rail 300, and when the fastening sleeve 200 applies a locking force toward the guide rail 300 to the buckle block 120, it can prevent the end of the pressure block 110 away from the fastening sleeve 200 from moving away from the guide rail 300 and tilting up.

[0051] When the connecting part is constructed as a snap-fit ​​protrusion 310, the snap-fit ​​protrusion 310 engages with the snap-fit ​​groove 113 on the guide rail 300, thereby improving the stability of the connection between the pressure block 110 and the guide rail 300, so that the pressure block 110 can stably press the extension edge 410 of the frame 400 onto the guide rail 300, and when the fastening sleeve 200 applies a locking force toward the guide rail 300 to the snap-fit ​​block 120, it can prevent the end of the pressure block 110 away from the fastening sleeve 200 from moving away from the guide rail 300 and tilting up.

[0052] See Figure 1 , Figure 3 , Figure 4 and Figure 5In one embodiment, the connecting part is configured as a slot 113, which includes a first slot segment 114 and a second slot segment 115 that are interconnected. The width of the second slot segment 115 is greater than the width of the first slot segment 114, so as to form a stepped wall 116 between the first slot segment 114 and the second slot segment 115. The stepped wall 116 is used to abut against the limiting wall 320 on the side wall of the protrusion 310 to limit the pressure block 110 from moving away from the guide rail 300.

[0053] Specifically, the first groove segment 114 is located at one end of the opening of the slot 113. The protrusion 310 extends into the second groove segment 115 through the first groove segment 114 and abuts against the stepped wall 116 through the limiting wall 320 on the side wall of the protrusion 310. This allows a limiting force to be applied to the stepped wall 116 toward the guide rail 300, thereby limiting the pressure block 110 from moving away from the guide rail 300, i.e., limiting the upward movement of the pressure block 110, and improving the stability of the pressure block 110 pressing the frame 400 onto the guide rail 300. The protrusion 310 and the guide rail 300 are integrally formed.

[0054] Furthermore, a gap is reserved between the top of the protrusion 310 and the bottom wall of the slot 113 to prevent the protrusion 310 and the slot 113 from being squeezed and deformed after being subjected to force.

[0055] Furthermore, the cam 310 includes a first cam segment 330 and a second cam segment 340. The first cam segment 330 is connected to the guide rail 300, and the second cam segment 340 is connected to the end of the first cam segment 330 away from the guide rail 300. The two sides of the second cam segment 340 protrude relative to the first cam segment 330, and the side facing the first cam segment 330 is configured as a limiting wall 320.

[0056] See Figure 1 , Figure 3 and Figure 4 In one embodiment, the pressure block 110 is provided with anti-slip serrations 117 on the side away from the snap block 120. The anti-slip serrations 117 are used to abut against the frame 400, thereby increasing the friction between the pressure block 110 and the extended edge 410 of the frame 400, preventing the frame 400 from moving relative to the pressure block 110, so as to improve the stability of the pressure block 110 pressing the frame 400 onto the guide rail 300.

[0057] See Figure 1 , Figure 3 and Figure 4 In one embodiment, the side of the latching block 120 away from the pressure block 110 is provided with an anti-slip pad 124. The anti-slip pad 124 is used to abut against the guide rail 300, thereby increasing the friction between the latching block 120 and the guide rail 300 and improving the strength of the latching block 120.

[0058] See Figure 1 , Figure 3 and Figure 4In one embodiment, the pressure block 110 is provided with a first weight-reducing hole 118, which can reduce the weight of the pressure block 110 itself and save materials, thereby reducing costs and increasing efficiency. For example, the pressure block 110 has two first weight-reducing holes 118.

[0059] See Figure 1 , Figure 3 and Figure 4 In one embodiment, the latching block 120 is provided with a second weight-reducing hole 125, which can reduce the weight of the latching block 120 itself and save materials, thereby reducing costs and increasing efficiency. For example, the latching block 120 has two second weight-reducing holes 125.

[0060] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment, the snap-fit ​​block 120 is provided with a limiting groove 126, and the fastening sleeve 200 is partially accommodated in the limiting groove 126 to limit the relative position of the fastening sleeve 200 and the snap-fit ​​block 120. The limiting groove 126 is constructed as a mating part 123.

[0061] Specifically, the fastening sleeve 200 is partially housed in the limiting groove 126, thereby preventing the fastening sleeve 200 from moving relative to the snap-fit ​​block 120, so that the fastening sleeve 200 is stably fitted onto the snap-fit ​​block 120, improving the stability of fixing the snap-fit ​​block 120 to the guide rail 300.

[0062] See Figure 1 and Figure 2 In one embodiment, the fastening sleeve 200 includes a clamping U-shaped screw 210, a clamping pressure plate 220, and a nut 230. The clamping U-shaped screw 210 is sleeved on the snap-fit ​​block 120 and the guide rail 300, and both ends of the clamping U-shaped screw 210 pass through the clamping pressure plate 220 and are connected to the nut 230. One side of the clamping pressure plate 220 abuts against the nut 230, and the other side abuts against the guide rail 300 to stably fix the snap-fit ​​block 120 on the guide rail 300.

[0063] This application also provides a photovoltaic system, including the photovoltaic module frame fixing structure described above, and further including a guide rail 300 and a frame 400. The frame 400 is placed on the guide rail 300, the photovoltaic module frame fixing structure is installed on the guide rail 300, and the frame 400 is pressed onto the guide rail 300.

[0064] In this application, the length of the clamping component 100 is adjustable, so the distance between the mating part 123 and the frame 400 can be adjusted. The fastening sleeve 200 cooperates with the mating part 123, so that when the fastening sleeve 200 is fitted on the clamping component 100 and the guide rail 300, the distance between the fastening sleeve 200 and the frame 400 is adjustable. This allows the fastening sleeve 200 to avoid the inclined beam 500 below the guide rail 300, so as to ensure that the clamping component 100 is fixed on the guide rail 300, thereby stably pressing the frame 400 onto the guide rail 300 and improving the installation stability of the photovoltaic module.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic module frame fixing structure, characterized in that, include: A pressing assembly is used to abut against a guide rail and to press a frame onto the guide rail. The pressing assembly has a mating part and the length of the pressing assembly is adjustable to adjust the distance between the mating part and the frame. A fastening sleeve is used to fit over the clamping assembly and the guide rail, and to cooperate with the mating part to fix the clamping assembly on the guide rail.

2. The photovoltaic module frame fixing structure according to claim 1, characterized in that, The clamping assembly includes: A pressing block, used to press the frame onto the guide rail; A snap-fit ​​block, one end of which is used to abut against the guide rail, and the other end is movably connected to the pressure block. The mating part is provided on the snap-fit ​​block, and the snap-fit ​​block passes through the fastening sleeve to fix it on the guide rail.

3. The photovoltaic module frame fixing structure according to claim 2, characterized in that, One of the pressing block and the snap-fit ​​block is provided with a connecting groove, and the other is provided with a protrusion, which is inserted into the connecting groove.

4. The photovoltaic module frame fixing structure according to claim 3, characterized in that, The groove wall of the connecting groove and the outer wall of the protrusion are provided with at least one locking tooth, and the other is provided with at least two tooth grooves that cooperate with the locking tooth. The locking tooth and / or the tooth grooves are arranged along the length direction of the pressing assembly on the groove wall of the connecting groove or the outer wall of the protrusion. The locking tooth cooperates with the tooth grooves at different positions to realize the length adjustment of the pressing assembly.

5. The photovoltaic module frame fixing structure according to claim 2, characterized in that, The pressure block is provided with a connecting part, which is used to connect with the guide rail.

6. The photovoltaic module frame fixing structure according to claim 5, characterized in that, The connecting part is configured as either a slot or a protrusion, and the connecting part is used to engage with the protrusion or slot on the guide rail.

7. The photovoltaic module frame fixing structure according to claim 6, characterized in that, The connecting part is configured as the slot, the slot including a first slot segment and a second slot segment that are interconnected. The width of the second slot segment is greater than the width of the first slot segment to form a stepped wall between the first slot segment and the second slot segment. The stepped wall is used to abut against a limiting wall on the side wall of the protrusion to limit the pressure block from moving away from the guide rail.

8. The photovoltaic module frame fixing structure according to any one of claims 2-7, characterized in that, The pressure block has anti-slip serrations on the side away from the buckle block, and the anti-slip serrations are used to abut against the frame; and / or, the buckle block has an anti-slip pad on the side away from the pressure block, and the anti-slip pad is used to abut against the guide rail.

9. The photovoltaic module frame fixing structure according to any one of claims 2-7, characterized in that, The buckle block is provided with a limiting groove, and the fastening sleeve is partially accommodated in the limiting groove to limit the relative position of the fastening sleeve and the buckle block. The limiting groove is constructed as the mating part.

10. A photovoltaic system, characterized in that, The photovoltaic module frame fixing structure according to any one of claims 1-9 further includes a guide rail and a frame, the frame being placed on the guide rail, the photovoltaic module frame fixing structure being installed on the guide rail, and pressing the frame onto the guide rail.

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