Clamp for photovoltaic module and photovoltaic module having same

Abstract

The present application relates to a clamp for a photovoltaic module and a photovoltaic module having same. The clamp comprises: a fixing plate, wherein the fixing plate is provided with a mounting hole for fixing the fixing plate on a preset mounting member; a connecting plate, wherein the connecting plate has a first end and a second end opposite to each other, the first end is connected to the fixing plate, and the connecting plate is provided with a stress relief hole; and a pressing plate, wherein the pressing plate is connected to the second end, and is configured to abut against a photovoltaic module when the fixing plate is fixed on the preset mounting member, so as to constrain the photovoltaic module between the pressing plate and the preset mounting member. The clamp in the present application can effectively release stress for fixing the photovoltaic module, thereby improving safety and the service life of the photovoltaic module.

Description

Compression block for photovoltaic module and photovoltaic module with same Priority claim

[0001] The present application claims priority to Chinese Patent Application No. CN202421184939.3, filed on May 28, 2024, entitled “Compression block for photovoltaic module and photovoltaic module with same”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of photovoltaic technology, in particular to a compression block for a photovoltaic module and a photovoltaic module with same. BACKGROUND

[0003] A photovoltaic module is an electronic device that converts solar energy into electrical energy using the photovoltaic effect. It mainly includes photovoltaic glass, cell pieces, back plates, and fixed frames, etc. components. Photovoltaic modules have many advantages such as energy saving and environmental protection, safety and reliability, renewable, and long service life, etc., and are widely used in grid-connected power generation, traffic lighting, communication base stations, etc.

[0004] Currently, when installing a photovoltaic module, a compression block is usually used to fix the photovoltaic module on a predetermined installation (such as a roof, a carport, an outdoor lamp stand, etc.). Specifically, the compression block is fixed on the predetermined installation by screws, and the compression block compresses the photovoltaic module, so that the photovoltaic module is confined between the compression block and the predetermined installation. However, the photovoltaic module will be subjected to loads such as wind and snow in actual application, so that the stress on the photovoltaic module is easily concentrated near the compression block, causing cracks or even bursts of the photovoltaic glass and other components, greatly reducing the safety and service life of the photovoltaic module.

[0005] Therefore, there is a need in the art for a new technical solution to solve the above problems. Disclosure of Invention

[0006] In order to solve or improve to some extent the technical problem that the photovoltaic module is easily damaged due to stress concentration in the prior art, the present application provides a compression block for a photovoltaic module. The compression block comprises: a fixed plate, an installation hole is formed on the fixed plate so as to fix the fixed plate on a predetermined installation; a connecting plate, the connecting plate has opposite first and second ends, the first end is connected with the fixed plate, wherein a stress release hole is formed on the connecting plate; and a compression plate, the compression plate is connected with the second end, and the compression plate is configured to abut against the photovoltaic module when the fixed plate is fixed on the predetermined installation, so as to constrain the photovoltaic module between the compression plate and the predetermined installation.

[0007] The skilled in the art can understand that the compression block of the present application comprises a fixed plate, a connecting plate and a compression plate. The fixed plate is provided with a mounting hole for fixing the fixed plate on a predetermined mounting member. The connecting plate has opposite first and second ends. The first end is connected with the fixed plate, and the second end is connected with the compression plate for connecting the fixed plate and the compression plate. The compression plate is configured to abut against the photovoltaic module when the fixed plate is fixed on the predetermined mounting member, so as to constrain the photovoltaic module on the compression block and the predetermined mounting member. The stress release hole is provided on the connecting plate. Therefore, when the photovoltaic module is subjected to a large load, the stress at the connection between the fixed plate and the predetermined mounting member can be conducted to the connecting plate through the fixed plate, and a part of the stress is released after passing through the stress release hole, so as to correspondingly reduce the force of the compression plate on the photovoltaic module, prevent the photovoltaic module from being damaged, and improve the safety and service life of the photovoltaic module.

[0008] In the preferred technical solution of the compression block for the photovoltaic module, the length of the stress release hole along the length direction of the connecting plate is L1, and the length along the width direction of the connecting plate is L2, wherein L1≥L2. Through the above arrangement, the stress release hole can extend along the length direction of the connecting plate, that is, the stress release hole also extends along the length direction of the compression plate. In this way, the stress at the connection between the fixed plate and the photovoltaic module can be effectively released when passing through the stress release hole on the connecting plate, ensuring that the stress has sufficient release space and significantly reducing the stress conducted to the compression plate.

[0009] In the preferred technical solution of the compression block for the photovoltaic module, the diameter of the mounting hole is D, wherein L2≥D. Through the above arrangement, the stress release hole can have a moderate width, so that the stress has sufficient release space at the stress release hole.

[0010] In the preferred technical solution of the compression block for the photovoltaic module, the length of the connecting plate along the length direction is L, wherein 1 / 3L≤L1≤2 / 3L. Through the above arrangement, the stress release hole can have a moderate length, so as to take into account the rigidity and mechanical strength of the connecting plate on the basis of satisfying stress release.

[0011] In the preferred technical solution of the compression block for the photovoltaic module, the stress release hole is arranged at the middle part of the connecting plate. Through the above arrangement, the stress can be more uniformly conducted to the compression plate through the connecting plate.

[0012] In the preferred technical solution of the compression block for the photovoltaic module, the stress release hole is symmetrically arranged along the vertical center line of the connecting plate, so as to further improve the uniformity of stress conduction.

[0013] In the preferred technical solution of the above-mentioned pressure block for photovoltaic modules, the stress relief hole is a waist-shaped hole, a triangular hole, an arc-shaped hole, or an elliptical hole to enrich the types of stress relief holes.

[0014] In the preferred embodiment of the clamping block for photovoltaic modules described above, the fixing plate has a first edge and a second edge that are opposite to each other, and the connecting plate extends perpendicularly from the first edge and / or the second edge to the clamping plate. Through this arrangement, the clamping block can have various structures to meet the fixing needs of different installation positions of the photovoltaic modules.

[0015] In the preferred embodiment of the aforementioned clamping block for photovoltaic modules, the clamping block further includes a support plate, which extends perpendicularly from the first edge and / or the second edge in a direction away from the connecting plate, and the support plate is adapted to abut against the predetermined mounting member. The support plate further improves the reliability and stability of the clamping block in fixing the photovoltaic modules.

[0016] In the preferred embodiment of the pressure block for photovoltaic modules described above, the pressure plate is an arc-shaped plate that protrudes away from the fixing plate. The arc-shaped plate allows the pressure plate to more firmly press the photovoltaic module, preventing the photovoltaic module from slipping off the pressure block.

[0017] In the preferred embodiment of the clamping block for photovoltaic modules described above, anti-slip protrusions are formed on the clamping surface of the clamping plate that is adapted to abut against the photovoltaic module. The anti-slip protrusions increase the coefficient of friction between the clamping plate and the photovoltaic module, thereby improving the reliability of their connection.

[0018] To address or improve, to some extent, the technical problem of photovoltaic modules being prone to damage due to stress concentration in existing technologies, this application provides a photovoltaic module. This photovoltaic module includes a clamping block as described in any of the preceding claims. By employing the clamping block described in any of the preceding claims, the photovoltaic module of this application can effectively avoid stress concentration, improving safety and service life. Attached Figure Description

[0019] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0020] Figure 1 is a structural schematic diagram of an embodiment of the photovoltaic module and predetermined mounting component of this application;

[0021] Figure 2 is a schematic diagram of the structure of the first embodiment of the photovoltaic module using the pressing block of this application, installed on a predetermined mounting component;

[0022] Figure 3 is a structural schematic diagram of the first embodiment of the pressing block used in photovoltaic modules according to this application;

[0023] Figure 4 is a front view of the first embodiment of the pressing block used for photovoltaic modules according to this application;

[0024] Figure 5 is a structural schematic diagram of a second embodiment of the pressing block used in this application for photovoltaic modules;

[0025] Figure 6 is a structural schematic diagram of the third embodiment of the pressing block used in photovoltaic modules according to this application;

[0026] Figure 7 is a schematic diagram of the fourth embodiment of the photovoltaic module using a pressing block in this application, installed on a predetermined mounting component;

[0027] Figure 8 is a structural schematic diagram of the fourth embodiment of the pressing block used in photovoltaic modules according to this application;

[0028] Figure 9 is a schematic diagram of the fifth embodiment of the photovoltaic module using a pressing block in this application, installed on a predetermined mounting component;

[0029] Figure 10 is a structural schematic diagram of the fifth embodiment of the pressing block used in this application for photovoltaic modules.

[0030] List of reference numerals in the attached diagram:

[0031] 100. Photovoltaic module; 110. Photovoltaic glass; 120. Solar cell; 130. Backsheet; 140. Fixing frame; 200. Pressure block; 210. Fixing plate; 211. First edge; 212. Second edge; 213. Mounting hole; 220. Connecting plate; 220a. First connecting plate; 220b. Second connecting plate; 221. First end; 222. Second end; 223. Stress relief hole; 230. Pressing plate; 230a. First pressing plate; 230b. Second pressing plate; 231. Pressing surface; 240. Support plate; 240a. First support plate; 240b. Second support plate; 241. Support base; 300. Fastener; 400. Pre-installed component. Detailed Implementation

[0032] Preferred embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application.

[0033] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0034] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] To address or improve to some extent the technical problem of photovoltaic modules being easily damaged due to stress concentration in the prior art, this application provides a pressure block 200 for a photovoltaic module 100. The pressure block 200 includes: a fixing plate 210 with mounting holes 213 for fixing the fixing plate 210 to a predetermined mounting member 400; a connecting plate 220 having opposing first ends 221 and second ends 222, the first end 221 being connected to the fixing plate 210, wherein stress relief holes 223 are provided on the connecting plate 220; and a clamping plate 230 connected to the second end 222, and configured to abut against the photovoltaic module 100 when the fixing plate 210 is fixed to the predetermined mounting member 400, so as to constrain the photovoltaic module 100 between the clamping plate 230 and the predetermined mounting member 400.

[0036] Figure 1 is a structural schematic diagram of an embodiment of the photovoltaic module and the predetermined mounting component of this application; Figure 2 is a structural schematic diagram of the photovoltaic module of this application mounted on the predetermined mounting component using a first embodiment of clamping blocks. As shown in Figures 1 and 2, in one or more embodiments, the photovoltaic module 100 of this application is fixed to the predetermined mounting component 400 by four clamping blocks 200 spaced apart from each other. Specifically, the four clamping blocks 200 are respectively arranged on two opposite edges of the photovoltaic module 100. Each clamping block 200 is detachably fixed to the predetermined mounting component 400. The clamping blocks 200 abut against the photovoltaic module 100 and apply appropriate pressure to the photovoltaic module 100, so that the photovoltaic module 100 is stably and firmly constrained between the clamping blocks 200 and the predetermined mounting component 400. Alternatively, the clamping blocks 200 may also be provided in other suitable numbers, more or less than four, such as three, five, etc. The arrangement of the clamping blocks 200 can also be adjusted according to actual needs. The photovoltaic module 100 can be fixed using the clamping blocks 200 described in any of the following embodiments. In addition, the pre-installed component 400 can be, but is not limited to, rooftops, carports, outdoor light fixtures, etc.

[0037] As shown in Figure 2, in one or more embodiments, the photovoltaic module 100 of this application includes components such as photovoltaic glass 110, solar cells 120, a backsheet 130, and a fixing frame 140. The photovoltaic glass 110 is arranged on the light-facing side of the solar cells 120. The photovoltaic glass 110 is made of glass and undergoes special processing to give it high light transmittance and weather resistance, ensuring that the solar cells 120 fully utilize solar energy. The solar cells 120 are the core component of the photovoltaic module 100 and can be made of silicon materials, such as monocrystalline silicon, polycrystalline silicon, and amorphous silicon. The backsheet 130 is arranged on the back-facing side of the solar cells 120. The backsheet 130 can be made of polymer materials or glass materials to give it good weather resistance and electrical insulation properties, ensuring the reliability and safety of the photovoltaic module 100 under different environmental conditions. The fixing frame 140 fixes the photovoltaic glass 110, solar cells 120, and backsheet 130 together. The fixing frame 140 can be made of aluminum alloy or other suitable materials. In addition, the photovoltaic module 100 also includes, but is not limited to, components such as connecting wires, junction boxes, and sealant (not shown in the figure) to ensure its normal operation.

[0038] Figure 3 is a structural schematic diagram of the first embodiment of the clamping block used in photovoltaic modules according to this application. As shown in Figures 2 and 3, in one or more embodiments, the clamping block 200 of this application is an edge clamping block. Each edge clamping block is matched with only one corresponding photovoltaic module 100. The clamping block 200 can be made of a suitable metal material (e.g., aluminum alloy) through machining processes (e.g., extrusion, stamping, etc.) to give it good mechanical properties, weather resistance and structural stability.

[0039] Referring again to Figure 3, in one or more embodiments, the pressure block 200 includes a fixing plate 210, a connecting plate 220, a clamping plate 230, and a support plate 240. The fixing plate 210 has a generally rectangular shape. Alternatively, the fixing plate 210 may also be configured in other suitable shapes, such as a square. In the assembled state, the fixing plate 210 extends generally horizontally. The fixing plate 210 has two opposing edges, namely a first edge 211 and a second edge 212. Based on the orientation shown in Figure 3, the first edge 211 is the front edge of the fixing plate 210, and the second edge 212 is the rear edge of the fixing plate 210. In one or more embodiments, a mounting hole 213 is provided on the fixing plate 210. The mounting hole 213 can mate with a suitable fastener 300 (see Figures 1 and 2) to conveniently and securely fix the fixing plate 210 to the predetermined mounting member 400. The fastener 300 may be, but is not limited to, bolts, nuts, screws, etc. The mounting hole 213 can be a circular hole, an oblong hole, or other suitable shape. The mounting hole 213 is arranged at the center of the fixing plate 210 to ensure reliable fixing. Alternatively, the mounting hole 213 can also be arranged in other suitable locations. Alternatively, there can be two, three, or other suitable numbers of mounting holes 213.

[0040] Referring again to Figure 3, in one or more embodiments, the connecting plate 220 is disposed on one of the two opposing edges of the fixing plate 210. Specifically, the connecting plate 220 is disposed on the second edge 212 of the fixing plate 210. Alternatively, the connecting plate 220 may also be disposed on the first edge 211 of the fixing plate 210. The connecting plate 220 extends approximately perpendicularly along the second edge 212 of the fixing plate 210 in a direction away from the fixing plate 210 (i.e., upward based on the orientation shown in Figure 3). The connecting plate 220 has opposing first ends 221 and second ends 222. The first end 221 is the lower end of the connecting plate 220, and the second end 222 is the upper end of the connecting plate 220. The first end 221 of the connecting plate 220 is connected to the fixing plate 210, and the second end 222 is connected to the clamping plate 230. The connecting plate 220 has a generally rectangular shape. Alternatively, the connecting plate 220 may also be configured in other suitable shapes, such as a square. A stress relief hole 223 is provided on the connecting plate 220. The stress relief hole 223 can be manufactured using a suitable machining process (such as stamping, drilling, etc.). In the assembled state, the compressive stress generated by the fastener 300 near the mounting hole 213 will be transmitted to the connecting plate 220 through the fixing plate 210, and a portion of it will be released through the stress relief hole 230 arranged on the connecting plate 220, thereby effectively preventing stress concentration on the clamping plate 230 and damage to the photovoltaic module 100, ensuring the safety and service life of the photovoltaic module 100. In one or more embodiments, the stress relief hole 223 is arranged in the middle of the connecting plate 220, which allows the compressive stress generated by the fastener 300 near the mounting hole 213 to be transmitted more evenly to the clamping plate 230 through the connecting plate 220. Furthermore, the stress relief holes 223 are arranged symmetrically along the vertical centerline of the connecting plate 220 to further improve the uniformity of stress transmission.

[0041] Figure 4 is a front view of a first embodiment of the clamping block for photovoltaic modules according to this application. As shown in Figures 3 and 4, in one or more embodiments, the stress relief hole 223 is an oblong hole. Referring to Figure 4, the stress relief hole 223 has a length L1 along the length direction of the connecting plate 220 (based on the orientation shown in Figure 4, i.e., the left-right direction) and a length L2 along the width direction of the connecting plate 220 (based on the orientation shown in Figure 4, i.e., the up-down direction), where L1 > L2. With the above arrangement, the stress relief hole 223 can be extended approximately along the length direction of the connecting plate 220, so that there is sufficient release space when stress is transmitted from the fixing plate 210 to the connecting plate 220. In one or more embodiments, the diameter of the mounting hole 213 is D, where L2 ≥ D. In this way, the stress relief hole 223 can have a moderate width to ensure that the stress has sufficient release space in the stress relief hole 223 area, effectively reducing stress concentration. In one or more embodiments, the length of the connecting plate 220 along its length direction is L, where 1 / 3L ≤ L1 ≤ 2 / 3L. This allows for further limitation of the size of the stress relief hole 223, giving it a suitable length so that the rigidity and mechanical strength of the connecting plate 220 can be considered while satisfying stress relief requirements.

[0042] Referring again to Figure 3, in one or more embodiments, a clamping plate 230 is arranged on the side of the connecting plate 220 away from the fixing plate 210. Specifically, based on the orientation shown in Figure 3, the fixing plate 210 is arranged on the front side of the connecting plate 220, while the clamping plate 230 is arranged on the rear side of the connecting plate 220. The clamping plate 230 is configured such that the second end 222 of the connecting plate 220 extends in a direction away from the fixing plate 210. In other words, the clamping plate 230 and the fixing plate 210 extend in substantially opposite directions. In the assembled state, the clamping plate 230 abuts against the photovoltaic module 100 and applies suitable pressure to the photovoltaic module 100, thereby constraining the photovoltaic module 100 between the clamping plate 230 and the predetermined mounting member 400, thereby quickly and securely fixing the photovoltaic module 100. In one or more embodiments, the clamping plate 230 is an arc-shaped plate that bulges in a direction away from the fixing plate 210. Based on the orientation shown in Figure 3, this arc-shaped plate bulges upward. The curved plate design provides a more secure hold to the photovoltaic module 100, preventing it from slipping off the pressure plate 230. In one or more embodiments, anti-slip protrusions (not shown in the figure) are formed on the pressure surface 231 of the pressure plate 230 (i.e., the surface opposite to the photovoltaic module 100) to further increase the coefficient of friction between the pressure plate 230 and the photovoltaic module 100, thereby improving the reliability of their connection. It should be noted that the specific shape, number, and arrangement of the anti-slip protrusions can be adjusted according to actual needs.

[0043] Referring again to Figure 3, in one or more embodiments, the support plate 240 is disposed on one of the two opposite edges of the fixing plate 210. Specifically, the support plate 240 is disposed on the first edge 211 of the fixing plate 210. Alternatively, the support plate 240 may also be disposed on the second edge 212 of the fixing plate 210. The support plate 240 is configured to extend substantially perpendicularly from the first edge 211 of the fixing plate 210 toward a direction away from the connecting plate 220. Based on the orientation shown in Figure 3, the support plate 240 extends substantially perpendicularly downward from the front edge of the fixing plate 210. In the assembled state, the support plate 240 can abut against the predetermined mounting member 400 to improve the stability of the connection between the pressure block 200, the photovoltaic module 100, and the predetermined mounting member 400. In one or more embodiments, a support base 241 is provided at the bottom of the support plate 240 to increase the contact area between the support plate 240 and the predetermined mounting member 400, thereby improving the support effect.

[0044] Figure 5 is a structural schematic diagram of a second embodiment of the pressure block used in photovoltaic modules according to this application. As shown in Figure 5, in one or more embodiments, the pressure block 200 of this application is an edge pressure block composed of a support plate 240, a fixing plate 210, a connecting plate 220, and a pressing plate 230 connected in sequence. A stress relief hole 223 is provided on the connecting plate 220. This stress relief hole 223 is a triangular hole. Further, the triangular hole has the shape of an isosceles triangle or an equilateral triangle, giving it a regular and symmetrical shape. Further, based on the orientation shown in Figure 5, the base of the triangular hole faces upward and the vertex faces downward, so that the entire stress relief hole 223 extends approximately along the length direction of the connecting plate 220. It should be noted that the parts not mentioned in the second embodiment of the pressure block 200 can be configured the same as in the first embodiment, and will not be described again here.

[0045] Figure 6 is a structural schematic diagram of the third embodiment of the clamping block for photovoltaic modules according to this application. As shown in Figure 6, in one or more embodiments, the clamping block 200 of this application is an edge clamping block composed of a support plate 240, a fixing plate 210, a connecting plate 220, and a pressing plate 230 connected in sequence. A stress relief hole 223 is provided on the connecting plate 220. This stress relief hole 223 is an arc-shaped hole. Further, the arc-shaped hole extends approximately along the length direction of the connecting plate 220. In one or more embodiments, the arc-shaped hole arches approximately toward the pressing plate 230 (based on the orientation shown in Figure 6, i.e., upward). Alternatively, the arc-shaped hole may also be configured to arch approximately toward the fixing plate 210 (based on the orientation shown in Figure 6, i.e., downward). It should be noted that the parts of the clamping block 200 not mentioned in the third embodiment can be configured the same as in the first embodiment, and will not be described again here.

[0046] Figure 7 is a schematic diagram of the fourth embodiment of the photovoltaic module using a pressure block installed on a predetermined mounting component; Figure 8 is a schematic diagram of the fourth embodiment of the pressure block used for photovoltaic modules in this application. As shown in Figures 7 and 8, in one or more embodiments, the pressure block 200 of this application is an intermediate pressure block. Each intermediate pressure block 200 can be matched with two photovoltaic modules 100 simultaneously to improve the utilization efficiency of the pressure block 200 and the installation efficiency of the photovoltaic modules 100.

[0047] As shown in FIG8, in one or more embodiments, the pressure block 200 includes a fixing plate 210, a connecting plate 220, and a clamping plate 230. In the assembled state, the fixing plate 210 extends generally horizontally. Mounting holes 213 are provided on the fixing plate 210 to mate with suitable fasteners 300, so as to secure the fixing plate 210 to a predetermined mounting member 400. The connecting plate 220 includes a first connecting plate 220a and a second connecting plate 220b opposite to each other. Based on the orientation shown in FIG8, the first connecting plate 220a extends generally vertically upward from a first edge 211 of the fixing plate 210, while the second connecting plate 220b extends generally vertically upward from a second edge 212 of the fixing plate 210. Stress relief holes 223 are provided on each of the first connecting plate 220a and the second connecting plate 220b. Preferably, the stress relief holes 223 on the first connecting plate 220a and the stress relief holes 223 on the second connecting plate 220b are identical in shape, number, and arrangement to improve the uniformity of stress relief. Each of the first connecting plate 220a and the second connecting plate 220b has an opposing first end 221 and a second end 222. The first end 221 is connected to the fixing plate 210, while the second end 222 is connected to the corresponding clamping plate 230. The clamping plate 230 includes a first clamping plate 230a and a second clamping plate 230b opposite to each other. The first clamping plate 230a is disposed on the second end 222 of the first connecting plate 220a, and the second clamping plate 230b is disposed on the second end 222 of the second connecting plate 220b. The first clamping plate 230a and the second clamping plate 230b extend in generally opposite directions to mate with different photovoltaic modules 100 located on both sides of the pressure block 200. It should be noted that the parts not mentioned in the fourth embodiment of the pressing block 200 can be configured the same as those in the first, second or third embodiments, and will not be described again here.

[0048] Figure 9 is a structural schematic diagram of the fifth embodiment of the photovoltaic module using a pressure block installed on a predetermined mounting component; Figure 10 is a structural schematic diagram of the fifth embodiment of the pressure block used for photovoltaic modules in this application. As shown in Figures 9 and 10, in one or more embodiments, the pressure block 200 of this application is an intermediate pressure block. Each intermediate pressure block 200 can be matched with two photovoltaic modules 100 simultaneously to improve the utilization efficiency of the pressure block 200 and the installation efficiency of the photovoltaic modules 100.

[0049] As shown in Figure 10, in one or more embodiments, the pressure block 200 includes a fixing plate 210, a connecting plate 220, a clamping plate 230, and a support plate 240. In the assembled state, the fixing plate 210 extends generally horizontally. Mounting holes 213 are provided on the fixing plate 210 to mate with suitable fasteners 300, so as to secure the fixing plate 210 to a predetermined mounting member 400. The connecting plate 220 includes a first connecting plate 220a and a second connecting plate 220b opposite to each other. Based on the orientation shown in Figure 10, the first connecting plate 220a extends generally vertically upward from a first edge 211 of the fixing plate 210, while the second connecting plate 220b extends generally vertically upward from a second edge 212 of the fixing plate 210. Stress relief holes 223 are provided on each of the first connecting plate 220a and the second connecting plate 220b. Preferably, the stress relief holes 223 on the first connecting plate 220a and the stress relief holes 223 on the second connecting plate 220b are identical in shape, number, and arrangement to improve the uniformity of stress relief. Each of the first connecting plate 220a and the second connecting plate 220b has an opposing first end 221 and a second end 222. The first end 221 is connected to the fixing plate 210, while the second end 222 is connected to the corresponding clamping plate 230. The clamping plate 230 includes a first clamping plate 230a and a second clamping plate 230b opposite to each other. The first clamping plate 230a is disposed on the second end 222 of the first connecting plate 220a, and the second clamping plate 230b is disposed on the second end 222 of the second connecting plate 220b. The first clamping plate 230a and the second clamping plate 230b extend in generally opposite directions to mate with different photovoltaic modules 100 located on both sides of the pressure block 200. The support plate 240 includes a first support plate 240a and a second support plate 240b opposite to each other. The first support plate 240a extends vertically from the first edge 211 of the fixing plate 210 in a direction away from the first connecting plate 220a (i.e., downward based on the orientation shown in FIG. 10). Correspondingly, the second support plate 240b extends vertically from the second edge 212 of the fixing plate 210 in a direction away from the second connecting plate 220b (i.e., downward based on the orientation shown in FIG. 10). In the assembled state, both the first support plate 240a and the second support plate 240b can abut against the predetermined mounting member 400 to improve the stability of the photovoltaic module 100 installation. It should be noted that the parts of the pressure block 200 not mentioned in the fifth embodiment can be configured the same as in the first, second, or third embodiments, and will not be described again here.

[0050] In one or more alternative embodiments, the stress relief hole 223 may also be configured as a circle, a square, or other suitable shape. Accordingly, the length L1 of the stress relief hole 223 along the length direction of the connecting plate 220 may also be set to be equal to or less than the length L2 along the width direction of the connecting plate 220, as long as it can effectively relieve stress.

[0051] In one or more alternative embodiments, multiple stress relief holes 223 may also be provided on the connecting plate 220, such as 2, 3, 4, etc., as long as the stress relief and stiffness requirements of the connecting plate 220 can be met.

[0052] In one or more alternative embodiments, the support plates 240 may also be provided in three, four or other suitable quantities, as long as they can effectively support the entire pressure block 200.

[0053] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A clamping block for photovoltaic modules, characterized in that, The pressing block includes: A fixing plate having mounting holes for fixing the fixing plate to a predetermined mounting component; A connecting plate having a first end and a second end opposite to each other, the first end being connected to the fixing plate, wherein stress relief holes are provided on the connecting plate; and A clamping plate is connected to the second end and is configured to abut against the photovoltaic module when the fixing plate is fixed to the predetermined mounting member, so as to constrain the photovoltaic module between the clamping plate and the predetermined mounting member.

2. The clamping block for photovoltaic modules according to claim 1, characterized in that, The stress relief hole has a length of L1 along the length direction of the connecting plate and a length of L2 along the width direction of the connecting plate, wherein L1 ≥ L2.

3. The clamping block for photovoltaic modules according to claim 2, characterized in that, The diameter of the mounting hole is D, where L2 ≥ D.

4. The clamping block for photovoltaic modules according to claim 2, characterized in that, The length of the connecting plate along the length direction is L, where 1 / 3L≤L1≤2 / 3L.

5. The briquette for photovoltaic modules according to any one of claims 1-4, characterized in that, The stress relief holes are located in the middle of the connecting plate.

6. The clamping block for photovoltaic modules according to claim 5, characterized in that, The stress relief holes are arranged symmetrically along the vertical centerline of the connecting plate.

7. The clamping block for photovoltaic modules according to claim 5, characterized in that, The stress relief hole can be a waist-shaped hole, a triangular hole, an arc-shaped hole, or an elliptical hole.

8. The clamping block for photovoltaic modules according to claim 1, characterized in that, The fixing plate has a first edge and a second edge opposite to each other, and the connecting plate extends vertically from the first edge and / or the second edge to the clamping plate.

9. The clamping block for photovoltaic modules according to claim 8, characterized in that, The pressing block also includes: A support plate extends perpendicularly from the first edge and / or the second edge toward a direction away from the connecting plate, and the support plate is adapted to abut against the predetermined mounting member.

10. The briquette for photovoltaic modules according to claim 1, characterized in that, The clamping plate is an arc-shaped plate that protrudes away from the fixing plate.

11. The briquette for photovoltaic modules according to claim 10, characterized in that, Anti-slip protrusions are formed on the pressing surface of the pressing plate that is adapted to abut against the photovoltaic module.

12. A photovoltaic module, characterized in that, The photovoltaic module includes a pressing block for the photovoltaic module according to any one of claims 1-11.

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