Fastening device, frame and photovoltaic module

Abstract

The present application relates to a fastening device, a frame and a photovoltaic module. The fastening device includes a pressing piece, a lead-out piece and a fastener. One end of the pressing piece has a pressing surface, and the pressing surface is used to abut against the bottom of the frame body, thereby pressing the bottom of the frame body. The lead-out piece extends from the end of the pressing piece having the pressing surface. The lead-out piece is provided with a fastening hole, and the fastening hole is used for the fastener to pass through to fasten the lead-out piece and the mounting frame. By adapting the fastening device to the mounting hole on the mounting frame, the installation between the frame body and the mounting frame can be adapted, so that the installation of the frame body on the mounting frame is more flexible. The frame includes the fastening device. The photovoltaic module includes the frame.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a fastening device, a frame and a photovoltaic module. Background Art

[0002] During the installation of photovoltaic modules, the solar cells are usually installed on the frame, and then the frame is installed on the mounting frame. Among them, the bottom of the frame is provided with a through hole. After the solar cells are matched with the frame and installed, fasteners such as screws are passed through the through holes at the bottom of the frame, and the fasteners are fastened to the holes on the mounting frame in correspondence. When using this installation method to install photovoltaic modules, the through holes on the frame need to correspond to the mounting holes on the mounting frame. That is, the frame can only match a specific mounting bracket, and the installation flexibility is poor. For example, when the position of the through hole at the bottom of the frame changes, it is often necessary to replace the mounting frame accordingly to install the photovoltaic module. Utility Model Content

[0003] Based on this, it is necessary to provide a fastening device, a frame and a photovoltaic module that can make the frame and the mounting frame more flexible to install.

[0004] A fastening device comprises a pressing piece, a lead-out piece and a fastening piece; one end of the pressing piece has a pressing surface, and the pressing surface is used to abut against the bottom of a frame body, thereby pressing the bottom of the frame body; the lead-out piece extends from the end of the pressing piece having the pressing surface; the lead-out piece is provided with a fastening hole, and the fastening hole is used for the fastening piece to pass through to fasten the lead-out piece and a mounting frame.

[0005] In the above-mentioned fastening device, the arrangement of the pressing member, the lead-out member and the fastening member can make the frame body and the mounting frame more flexible to adapt to each other. For example, when the above-mentioned fastening device is used to fasten the frame body and the mounting frame, the relative position of the pressing member and the bottom of the frame body can be adjusted, and then the fastening hole on the lead-out member can be made to correspond to the mounting hole on the mounting frame while pressing the bottom of the frame body, and then the frame body and the mounting frame can be fastened by the fastening member. In this process, the fastening device can be adapted to the mounting hole on the mounting frame to adapt the installation between the frame body and the mounting frame, so that the installation of the frame body on the mounting frame is more flexible.

[0006] In some embodiments, the pressing surface is concave to form a first slot, and the first slot is used for the pressing piece to be clamped with the bottom of the frame body.

[0007] In some embodiments, the pressing piece has a protrusion at one end away from the pressing surface, and the protrusion is used to be engaged with the frame body.

[0008] In some embodiments, the pressing piece and the lead-out piece are an integrally formed structure.

[0009] A frame comprises a frame body and a fastening device; a contact piece is provided at the bottom of the frame body, a clearance space is formed above the contact piece, the pressing piece is located in the clearance space, and the pressing surface of the pressing piece is in contact with the contact piece.

[0010] In the above frame, through the cooperation between the frame body and the fastening device, the frame can be flexibly installed according to the mounting holes on the mounting frame, so that the frame and the mounting frame are better adapted.

[0011] In some embodiments, the pressing surface is concave to form a first slot, the abutment member is provided with a second slot, the notch of the second slot faces the clearance space, and the first slot and the second slot are embedded with each other.

[0012] In some embodiments, a third card slot is provided on the frame body, and the notch of the third card slot is arranged opposite to the notch of the second card slot; the end of the pressing piece away from the pressing surface has a protrusion, and the protrusion is snapped into the third card slot.

[0013] In some embodiments, the frame further includes a reinforcement member; one end of the reinforcement member is snapped into the second slot, and the other end of the reinforcement member is snapped into the third slot; the reinforcement member is used to increase the strength of the frame body.

[0014] A photovoltaic assembly comprises a solar cell, a mounting frame and a frame; the frame is located at the edge of the solar cell; the mounting frame is provided with a mounting hole, the lead-out piece of the fastening device abuts against the mounting frame, and the fastening hole corresponds to the mounting hole, and the fastener passes through the fastening hole and the mounting hole.

[0015] In the photovoltaic module, the frame is located at the edge of the solar cell, and the solar cell can be installed and protected by the frame. At the same time, the frame and the mounting frame have good adaptability, and the position of the fastening device can be flexibly set according to the mounting holes on the mounting frame, thereby fastening the frame. In addition, in the photovoltaic module, the pressing position of the pressing part in the fastening device at the bottom of the frame can be flexibly selected, so that the force on the frame can be more uniform, thereby maintaining a relatively stable structure of the frame.

[0016] In some embodiments, the distance between the bottom surface of the solar cell and the top surface of the lead-out member is less than or equal to 30 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a fastening device in one embodiment of the present application.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the pressing piece and the lead-out piece in the corresponding fastening device.

[0019] Figure 3 It is a schematic diagram of the structure of the frame in one embodiment of the present application.

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the frame body in the corresponding frame.

[0021] Figure 5 for Figure 3 Schematic diagram of the structure of the frame body and reinforcement in the corresponding frame.

[0022] Figure 6 for Figure 5 Schematic diagram of the corresponding structure from another perspective.

[0023] Figure 7 This is a schematic diagram of the cooperation between the frame body and the fastening device in one embodiment of the present application.

[0024] 10. Fastening device; 101. Pressing piece; 1011. First slot; 1012. Protrusion; 102. Lead-out piece; 1021. Fastening hole; 103. Fastener; 20. Frame; 201. Frame body; 2011. Abutment piece; 20111. Second slot; 2012. Third slot; 2013. Installation slot; 2014. Cavity; 202. Reinforcement piece. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] See also Figure 1 In one embodiment of the present application, a fastening device 10 is provided. The fastening device 10 comprises a pressing piece 101, a lead piece 102 and a fastener 103. One end of the pressing piece 101 has a pressing surface, and the pressing surface is used to abut against the bottom of the frame body 201, thereby pressing the bottom of the frame body 201. The lead piece 102 extends from the end of the pressing piece 101 having the pressing surface. The lead piece 102 is provided with a fastening hole 1021, and the fastening hole 1021 is used for the fastener 103 to pass through to fasten the lead piece 102 and the mounting frame.

[0031] In the fastening device of the present embodiment, the frame body 201 and the mounting frame can be more flexibly adapted by the arrangement of the pressing member 101, the lead-out member 102 and the fastening member 103. For example, when the frame body 201 and the mounting frame are fastened by the fastening device 10, the relative position of the pressing member 101 and the bottom of the frame body 201 can be adjusted, and then the fastening hole 1021 on the lead-out member 101 can be made to correspond to the mounting hole on the mounting frame while the bottom of the frame body 201 is pressed, and then the frame body 201 and the mounting frame are fastened by the fastening member 103. In this process, the fastening device 10 can be adapted to the mounting hole on the mounting frame to adapt the installation between the frame body 201 and the mounting frame, so that the installation of the frame body 201 on the mounting frame is more flexible.

[0032] Optionally, the fastener 103 may be a screw, a bolt, a pin, a rivet, etc. Figure 1 In the fastening device 10 shown, the fastener 103 is a screw.

[0033] See also Figure 2 In some embodiments, the pressing piece 101 and the lead-out piece 102 are integrally formed. The integrally formed structure can make the fastening device 10 have a relatively stable structure, which is conducive to better exerting the fastening function of the fastening device 10.

[0034] Please refer again Figure 1 and Figure 2 In some embodiments, the pressing surface is concave to form a first card slot 1011, and the first card slot 1011 is used for the pressing piece 101 to be clamped with the bottom of the frame body 201. By setting the first card slot 1011, the pressing piece 101 can be clamped with the bottom of the frame body 201, which can further improve the stability of the connection between the pressing piece 101 and the bottom of the frame body 201. It can be understood that a protrusion matching the first card slot 1011 can be set at the bottom of the frame body 201, and the clamping of the pressing piece 101 and the bottom of the frame body 201 is achieved by the cooperation between the protrusion at the bottom of the frame body 201 and the first card slot 1011.

[0035] Please refer again Figure 1 and Figure 2In some embodiments, the end of the pressing piece 101 away from the pressing surface has a protrusion 1012, and the protrusion 1012 is used to engage with the frame body 201. By setting the protrusion at the end of the pressing piece 101 away from the pressing surface, the protrusion 1012 can be engaged with the frame body 201, further improving the stability of the connection between the pressing piece 101 and the frame body 201. It is understandable that a slot matching the protrusion 1012 on the pressing piece 101 can be provided on the frame body 201, and the protrusion 1012 of the pressing piece 101 and the frame body 201 can be engaged by the cooperation between the protrusion 1012 and the slot.

[0036] See also Figure 3 and Figure 4 In one embodiment of the present application, a frame 20 is provided. The frame 20 includes a frame body 201 and a fastening device 10. A butt piece 2011 is provided at the bottom of the frame body 201, and a clearance space is formed above the butt piece 2011. The pressing piece 101 is located in the clearance space, and the pressing surface of the pressing piece 101 is in contact with the butt piece 2011. In the frame 20 of this embodiment, through the cooperation of the frame body 201 and the fastening device 10, the frame 20 can be flexibly installed according to the mounting hole on the mounting frame, so that the frame 20 and the mounting frame are better adapted.

[0037] It is understandable that, in a traditional frame, in order to ensure good installation stability between the frame and the mounting frame, the bottom of the frame is often set to have a larger width, and then a corresponding number of through holes can be set at the bottom of the frame to install the frame, which may result in a lot of material waste. In the frame of this embodiment, abutment members 2011 with a smaller width can be set to obtain a better installation effect, which is conducive to promoting the reduction of material costs during the frame processing process.

[0038] Furthermore, in the frame 20 of this embodiment, the fastening device 10 can be adapted to frame bodies 201 of different sizes and models, that is, frame bodies 201 of different structures can be fastened and installed using the same fastening device 10. This can reduce the number of molds in the production process of the frame body 201, which may be helpful in reducing the production cost of the frame.

[0039] Please refer again Figure 3 and Figure 4 In some embodiments, the pressing surface is concave to form a first slot 1011, and a second slot 20111 is provided on the abutting member 2011. The notch of the second slot 20111 faces the clearance space, and the first slot 1011 and the second slot 20111 are engaged with each other. Through the engagement of the first slot 1011 and the second slot 20111, the pressing member 101 and the frame body 201 can be more stably connected, which is conducive to further improving the stability of the frame structure.

[0040] In some embodiments, the frame body 201 is provided with a third slot 2012, and the notch of the third slot 2012 is arranged opposite to the notch of the second slot 20111. The end of the pressing piece 101 away from the pressing surface has a protrusion 1012, and the protrusion 1012 is engaged in the third slot 2012. At this time, the top of the pressing piece 101 can be engaged in the third slot 2012 through the protrusion 1012, and the bottom of the pressing piece 101 can be connected through the engagement of the first slot 1011 and the second slot 20111, which can further improve the connection stability between the pressing piece 101 and the frame body 201.

[0041] See also Figure 5 and Figure 6 In some embodiments, the frame 20 further includes a reinforcing member 202. One end of the reinforcing member 202 is clamped in the second clamping slot 20111, and the other end of the reinforcing member is clamped in the third clamping slot 2012. The reinforcing member 202 is used to increase the strength of the frame body 201. The provision of the reinforcing member 202 can improve the strength of the frame body 201, so that the frame 20 maintains good structural stability during use.

[0042] It can be understood that the two ends of the reinforcing member 202 are respectively engaged with the second slot 20111 and the third slot 2012, and the reinforcing member 202 can be relatively stably present in the frame 20 through the limiting effect of the second slot 20111 and the third slot 2012. Furthermore, the bonding force between the reinforcing member 202 and the frame body 201 can be further enhanced by filling with glue.

[0043] It can also be understood that when the pressing member 101 and the reinforcing member 202 are installed, the pressing member 101 and the reinforcing member 202 can be staggered.

[0044] It can also be understood that the strength of the reinforcement member 202 is greater than the strength of the frame body 201. Optionally, the material of the frame body 201 can be aluminum alloy, composite material, plastic, etc. The material of the reinforcement member 202 can be carbon steel.

[0045] Another embodiment of the present application provides a photovoltaic module. The photovoltaic module includes a solar cell, a mounting frame and the frame 20. The frame 20 is located at the edge of the solar cell. The mounting frame is provided with a mounting hole, the lead-out piece 102 of the fastening device 10 abuts against the mounting frame, and the fastening hole 1021 corresponds to the mounting hole, and the fastener 103 passes through the fastening hole 1021 and the mounting hole.

[0046] In the photovoltaic module of this embodiment, the frame 20 is located at the edge of the solar cell, and the solar cell can be installed and protected by the frame 20. At the same time, the frame 20 and the mounting frame have good adaptability, and the position of the fastening device 10 can be flexibly set according to the mounting holes on the mounting frame, thereby fastening the frame 20. In addition, in the above photovoltaic module, the pressing position of the pressing member 101 in the fastening device 10 at the bottom of the frame 20 can be flexibly selected, so that the force on the frame 20 can be more uniform, thereby maintaining a relatively stable structure of the frame 20.

[0047] Please refer again Figure 4 It can be understood that a mounting groove 2013 is provided on the frame body 201. The edge of the solar cell is arranged in the mounting groove 2013. Optionally, the mounting groove 2013 is further away from the abutment member 2011 than the third slot 2012.

[0048] It can also be understood that the frame body 201 is further provided with a cavity 2014. The cavity 2014 can be used for inserting an angle code, thereby connecting adjacent frame bodies 201.

[0049] In some embodiments, the distance between the bottom surface of the solar cell and the top surface of the lead-out member 102 is less than or equal to 30 mm. In this case, the distance between the solar cell and the mounting frame is small, which is conducive to making the installation of the photovoltaic module more stable. Figure 1 , wherein the distance H between the bottom surface of the solar cell and the top surface of the lead-out member 102 is illustrated, where H≤30 mm.

[0050] It is understandable that, with the continuous deepening of the research on photovoltaic modules, the distance between the solar cell and the mounting frame is getting smaller and smaller. When the traditional fixing method of opening a through hole at the bottom of the frame is adopted, since the fastener has a certain length, it is difficult for the fastener to pass through the gap between the solar cell and the mounting frame to install the frame. When the frame of this embodiment is adopted, the fastening device 10 can be installed on the mounting frame first, and then the frame body 201 can be installed, which better solves the problem of interference with the installation caused by the small distance between the solar cell and the mounting frame.

[0051] In some embodiments, when installing the frame 20 of the present application, the fastener 103 may be first installed on the mounting frame, such as Figure 1 , Figure 1 The mounting frame is not shown. It is understood that during installation, the fastener 103 is inserted into the mounting hole on the mounting frame. Then the frame body 201 is installed to obtain Figure 3 The frame 20 is shown.

[0052] In some embodiments, when installing the frame 20 in the present application, the pressing piece 101 and the frame body 201 can be installed first, for example Figure 7 Then install the fastener 103, and then obtain Figure 3 The frame 20 is shown.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims, and the specification and drawings may be used to interpret the contents of the claims.

Claims

1. A fastening device (10), characterized in that: The invention comprises a pressing piece (101), a lead piece (102) and a fastener (103); one end of the pressing piece (101) has a pressing surface, and the pressing surface is used to abut against the bottom of the frame body (201), thereby pressing the bottom of the frame body (201); the lead piece (102) extends from the end of the pressing piece (101) having the pressing surface; the lead piece (102) is provided with a fastening hole (1021), and the fastening hole (1021) is used for the fastener (103) to penetrate to fasten the lead piece (102) and the mounting frame.

2. The fastening device (10) according to claim 1, characterized in that: The pressing surface is concave inwardly to form a first clamping groove (1011), and the first clamping groove (1011) is used for the pressing component (101) to be clamped with the bottom of the frame body (201).

3. The fastening device (10) according to claim 1 or 2, characterized in that: The pressing piece (101) has a protrusion (1012) at one end away from the pressing surface, and the protrusion (1012) is used for clamping with the frame body (201).

4. The fastening device (10) according to claim 1 or 2, characterized in that: The pressing piece (101) and the lead-out piece (102) are an integrally formed structure.

5. A frame (20), characterized in that: The invention comprises a frame body (201) and a fastening device (10) according to any one of claims 1 to 4; a contact piece (2011) is provided at the bottom of the frame body (201), a clearance space is formed above the contact piece (2011), the pressing piece (101) is located in the clearance space, and the pressing surface of the pressing piece (101) is in contact with the contact piece (2011).

6. The frame (20) according to claim 5, characterized in that: The pressing surface is concave inwardly to form a first card slot (1011), and the abutment member (2011) is provided with a second card slot (20111), the notch of the second card slot (20111) faces the clearance space, and the first card slot (1011) and the second card slot (20111) are interlocked.

7. The frame (20) according to claim 6, characterized in that: The frame body (201) is provided with a third card slot (2012), and the notch of the third card slot (2012) and the notch of the second card slot (20111) are arranged opposite to each other; the pressing piece (101) has a protrusion (1012) at one end away from the pressing surface, and the protrusion (1012) is snap-connected in the third card slot (2012).

8. The frame (20) according to claim 7, characterized in that: The frame (20) further comprises a reinforcing member (202); one end of the reinforcing member (202) is clamped in the second clamping slot (20111), and the other end of the reinforcing member (202) is clamped in the third clamping slot (2012); the reinforcing member (202) is used to increase the strength of the frame body (201).

9. A photovoltaic module, characterized in that: The invention comprises a solar cell, a mounting frame and a frame (20) according to any one of claims 5 to 8; the frame (20) is located at the edge of the solar cell; the mounting frame is provided with a mounting hole, the lead-out piece (102) of the fastening device (10) abuts against the mounting frame, and the fastening hole (1021) corresponds to the mounting hole, and the fastener (103) passes through the fastening hole (1021) and the mounting hole.

10. The photovoltaic module according to claim 9, characterized in that: The distance between the bottom surface of the solar cell and the top surface of the lead-out member (102) is less than or equal to 30 mm.

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