Photovoltaic frame and photovoltaic module

Abstract

The present application relates to a photovoltaic frame and a photovoltaic module. The photovoltaic module includes a laminate, a photovoltaic frame, and a pressing block. The photovoltaic frame includes a main body portion and a buffer portion. The main body portion is provided with an installation groove for installing the laminate. The buffer portion is installed on the main body portion. A part of the buffer portion and the main body portion enclose a buffer cavity. The buffer cavity and the installation groove are distributed along the height direction of the photovoltaic frame. Along the height direction of the photovoltaic frame, the buffer portion is arranged on one side or both sides of the main body portion. When multiple photovoltaic modules are stacked in the height direction Z of the photovoltaic frame, the buffer portions of adjacent photovoltaic frames contact and squeeze to form a squeezing force. The buffer portion deforms towards the inside of the buffer cavity under the force and offsets the squeezing force, reducing the risk of deformation of the main body portion affected by the squeezing force. Thus, the risk of the laminate being cracked and damaged due to stress concentration caused by the deformation of the main body portion is reduced, which is beneficial to improving the working stability and service life of the laminate.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic modules, and particularly to a photovoltaic frame and a photovoltaic module. Background Art

[0002] A photovoltaic module is an important part of a solar cell and is used to convert solar energy into electrical energy. The photovoltaic module includes a laminate and a photovoltaic frame disposed at the edge of the laminate. The photovoltaic frame includes a first body and a second body distributed along the thickness direction of the laminate. The first body and the second body are connected by a third body. The first body, the second body, and the third body enclose a U-shaped installation groove. During the assembly process, a part of the laminate is first inserted into the installation groove, and then silicone is filled and cured in the installation groove to fix the laminate to the photovoltaic frame.

[0003] In the prior art, when multiple photovoltaic modules are stacked in the thickness direction, the first body and / or the second body of the photovoltaic frame will abut against the adjacent photovoltaic frame. Under the action of gravity, the first body and / or the second body will deform and squeeze the laminate, resulting in hidden cracks in the photovoltaic cells inside the laminate and reducing the service life of the laminate. Summary of the Invention

[0004] This application provides a photovoltaic frame and a photovoltaic module, which can reduce the risk of hidden cracks when the photovoltaic modules are stacked in the thickness direction.

[0005] In the first aspect of this application, a photovoltaic frame is provided, which includes a body part and a buffer part. The body part is provided with an installation groove for installing a laminate. The buffer part is installed on the body part. The buffer part and a part of the body part enclose a buffer cavity. The buffer cavity and the installation groove are distributed along the height direction of the photovoltaic frame. Along the height direction of the photovoltaic frame, the buffer part is disposed on one side or both sides of the body part.

[0006] In this embodiment, when multiple photovoltaic modules are stacked in the height direction Z of the photovoltaic frame, the buffer parts of adjacent photovoltaic frames contact and squeeze to form a squeezing force. The buffer part deforms towards the inside of the buffer cavity under the force and offsets the squeezing force, reducing the risk of the body part deforming under the influence of the squeezing force. Thus, the risk of hidden cracks and damage caused by the deformation of the body part resulting in stress concentration on the laminate is reduced, which is beneficial to improving the working stability and service life of the laminate.

[0007] In some embodiments, the buffer part includes a first buffer part and a second buffer part disposed on both sides of the body part along the height direction of the photovoltaic frame. The buffer cavity includes a first cavity and a second cavity. The first buffer part and a part of the body part enclose the first cavity, and the second buffer part and a part of the body part enclose the second cavity. Along the height direction of the photovoltaic frame, the height of the first cavity is h1, and the height of the second cavity is h2. h1 and h2 satisfy: 1:1 ≤ h1 / h2 ≤ 7:3.

[0008] In some embodiments, the first buffer portion includes a first buffer wall and a first connecting wall. The first buffer wall and the body portion are distributed along the height direction of the photovoltaic frame. One end of the first buffer wall is connected to the body portion through the first connecting wall. A first cavity is formed by enclosing a part of the first buffer wall, the first connecting wall, and the body portion; the second buffer portion includes a second buffer wall and a second connecting wall. The second buffer wall and the body portion are distributed along the height direction of the photovoltaic frame. One end of the second buffer wall is connected to the body portion through the second connecting wall. A second cavity is formed by enclosing a part of the second buffer wall, the second connecting wall, and the body portion.

[0009] In some embodiments, a first flanging is provided at one end of the first buffer wall away from the first connecting wall. The first flanging and the first buffer wall are stacked along the height direction of the photovoltaic frame, and a first opening is formed at the first flanging. In the width direction of the photovoltaic frame, the first cavity communicates with the outside through the first opening; and / or, a second flanging is provided at one end of the second buffer wall away from the second connecting wall. The second flanging and the second buffer wall are stacked along the height direction of the photovoltaic frame, and a second opening is formed at the second flanging. In the width direction of the photovoltaic frame, the second cavity communicates with the outside through the second opening.

[0010] In some embodiments, the photovoltaic frame further includes a connecting body. One end of the first buffer wall away from the first connecting wall and one end of the second buffer wall away from the second connecting wall are respectively connected to the connecting body. In the width direction of the photovoltaic frame, the connecting body seals the first cavity and the second cavity.

[0011] In some embodiments, along the height direction of the photovoltaic frame, the height H of the photovoltaic frame satisfies: 25 mm ≤ H ≤ 40 mm.

[0012] In some embodiments, the photovoltaic frame includes a first frame and a second frame. Among the first frame and the second frame, one is used for installing the long side of the laminate, and the other is used for installing the short side of the laminate; the photovoltaic frame further includes a corner connector. The corner connector includes a first connecting portion and a second connecting portion. At least part of the first connecting portion is located in the buffer cavity of the first frame and is fixedly connected to the first frame, and at least part of the second connecting portion is located in the buffer cavity of the second frame and is fixedly connected to the second frame.

[0013] The second aspect of the present application provides a photovoltaic module, including a laminate, the photovoltaic frame described in any one of the above, and a pressing block. The pressing block is connected to the photovoltaic frame and is used for installing the photovoltaic module on a building body.

[0014] In the present application, one end of the pressing block is clamped with the photovoltaic frame, and the other end is fixedly connected to the building body, reducing the risk that the direct connection between the photovoltaic frame and the building body leads to a complex structure of the photovoltaic frame, simplifying the structure of the photovoltaic frame, reducing the processing cost of the photovoltaic frame. At the same time, the connection structure between the photovoltaic frame and the building body is simplified, the number of parts required for connecting the photovoltaic frame and the building body is reduced, the installation cost of the photovoltaic frame is reduced, and it is beneficial to reduce the installation space required for the photovoltaic frame.

[0015] In some embodiments, the pressing block includes an installation body extending along the width direction of the photovoltaic frame, and the installation body is used for fixedly connecting with the building body; a hook is connected to one end of the installation body close to the photovoltaic frame, and the hook encloses an accommodating space, and at least part of the photovoltaic frame is located in the accommodating space. In the height direction of the photovoltaic frame, at least part of the photovoltaic frame abuts against the hook, and the hook is used for pressing the photovoltaic frame tightly.

[0016] In some embodiments, along the height direction of the photovoltaic frame, a supporting portion is arranged on the side of the installation body away from the hook, and the supporting portion is used for contacting the building body.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The top view of the photovoltaic module provided by the present application in one embodiment;

[0019] Figure 2 is Figure 1 the cross-sectional view of the photovoltaic module in

[0020] Figure 3 is Figure 2 the structural schematic diagram of the photovoltaic frame in

[0021] Figure 4 is Figure 3 the cross-sectional view of the photovoltaic frame in

[0022] Figure 5 is Figure 3 the structural schematic diagram of the connection structure between the photovoltaic frame and the corner code in

[0023] Figure 6 is Figure 1 the cross-sectional view of the photovoltaic module in another embodiment in

[0024] Figure 7 is Figure 6 the structural schematic diagram of the photovoltaic frame in

[0025] Figure 8 is Figure 7Cross-sectional view of the photovoltaic frame therein;

[0026] Figure 9 is Figure 7 Schematic diagram of the connection structure between the photovoltaic frame and the corner code therein;

[0027] Figure 10 Top view of the corner code provided by the present application in one embodiment;

[0028] Figure 11 is Figure 2 Schematic diagram of the connection structure between the photovoltaic frame and the pressing block therein;

[0029] Figure 12 is Figure 6 Schematic diagram of the connection structure between the photovoltaic frame and the pressing block therein;

[0030] Figure 13 Cross-sectional view of the pressing block provided by the present application in one embodiment;

[0031] Figure 14 Cross-sectional view of the pressing block provided by the present application in another embodiment.

[0032] Reference numerals:

[0033] 1 - Laminating member;

[0034] 2 - Photovoltaic frame;

[0035] 21 - Body part;

[0036] 211 - Installation groove;

[0037] 212 - First body;

[0038] 213 - Second body;

[0039] 214 - Third body;

[0040] 214a - Reinforcing part;

[0041] 22 - Buffer part;

[0042] 221 - First buffer part;

[0043] 221a - First buffer wall;

[0044] 221b - First connecting wall;

[0045] 221c - First flanging;

[0046] 221d - First opening;

[0047] 222 - Second buffer part;

[0048] 222a - Second buffer wall;

[0049] 222b - Second connecting wall;

[0050] 222c - Second flanging;

[0051] 222d - Second opening;

[0052] 23 - Buffer cavity;

[0053] 231 - First cavity;

[0054] 232 - Second cavity;

[0055] 24 - Connecting body;

[0056] 25 - First frame;

[0057] 26 - Second frame;

[0058] 27 - Corner fitting;

[0059] 271 - First connecting part;

[0060] 271a - First mating part;

[0061] 272 - Second connecting part;

[0062] 272a - Second mating part;

[0063] 273 - Buffer hole;

[0064] 28 - Mounting hole;

[0065] 3 - Pressing block;

[0066] 31 - Mounting body;

[0067] 311 - Through hole;

[0068] 32 - Hook;

[0069] 321 - Accommodating space;

[0070] 322 - First hook body;

[0071] 323 - Second hook body;

[0072] 323a - First groove;

[0073] 323b - First inclined surface;

[0074] 323c - Second inclined surface;

[0075] 33 - Supporting part;

[0076] 331 - Second groove;

[0077] 34 - Support arm.

[0078] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Detailed implementation manners

[0079] For a better understanding of the technical solutions of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0080] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope protected by this application.

[0081] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms of "a", "the", and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0082] It should be understood that the term "and / or" used herein is only a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0083] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of this application are described from the angles shown in the accompanying drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0084] The embodiments of this application provide a photovoltaic module, as Figure 1 shown, the photovoltaic module includes a laminate 1 and a photovoltaic frame 2 installed at the edge of the laminate 1. The photovoltaic frame 2 includes a first frame 25 and a second frame 26. Among the first frame 25 and the second frame 26, one is installed at the long side of the laminate 1, and the other is installed at the short side of the laminate 1. The photovoltaic frame 2 can completely wrap the edge of the laminate 1, reducing the risk of damage to the edge position of the laminate 1 due to stress concentration, thereby being beneficial to improving the working stability and service life of the laminate 1.

[0085] Among them, the first frame 25 and the second frame 26 have the same structure, only different in length. For the convenience of description, the first frame 25 will be taken as an example for illustration below.

[0086] As Figure 2 , Figure 3 and Figure 4 shown, the photovoltaic frame 2 includes a body part 21 and a buffer part 22. The body part 21 is provided with an installation groove 211 for installing the laminate 1. The buffer part 22 is installed on the body part 21. The buffer part 22 and a part of the body part 21 enclose a buffer cavity 23. The buffer cavity 23 and the installation groove 211 are distributed along the height direction Z of the photovoltaic frame 2.

[0087] In this embodiment, when multiple photovoltaic modules are stacked along the height direction Z of the photovoltaic frame 2, the buffer parts 22 of adjacent photovoltaic frames 2 contact and squeeze to form a squeezing force. The buffer part 22 deforms inward into the buffer cavity 23 under the force, thereby offsetting the squeezing force, reducing the risk of the body part 21 deforming under the influence of the squeezing force, and thus reducing the risk of the laminate 1 cracking and being damaged due to stress concentration caused by the deformation of the body part 21. Therefore, it is beneficial to improve the working stability and service life of the laminate 1.

[0088] As Figure 2 , Figure 3 and Figure 4 shown, the body part 21 includes a first body 212 and a second body 213 distributed along the height direction Z of the photovoltaic frame 2. In the width direction X of the photovoltaic frame 2, a third body 214 is located on the same side of the first body 212 and the second body 213, and both ends of the third body 214 are respectively connected to the first body 212 and the second body 213. The first body 212, the third body 214, and the second body 213 enclose the installation groove 211.

[0089] Among them, in one embodiment, both the first body 212 and the second body 213 are horizontally arranged along the width direction X of the photovoltaic frame 2. In another embodiment, one end of the first body 212 far from the third body 214 extends obliquely towards the second body 213, and / or, one end of the second body 213 far from the third body 214 extends obliquely towards the first body 212, that is, in the height direction Z of the photovoltaic frame 2, the distance between one end of the first body 212 far from the third body 214 and one end of the second body 213 far from the third body 214 is less than the height of the third body 214, so that the height dimension of the opening position of the installation groove 211 is smaller.

[0090] As Figure 4As shown, a reinforcing portion 214a is provided on the third body 214. Along the width direction X of the photovoltaic frame 2, the reinforcing portion 214a protrudes from the third body 214, reducing the risk of damage to the third body 214 when subjected to a force along the width direction X of the photovoltaic frame 2. Thereby, the structural strength of the third body 214 is increased, and further, the working stability and service life of the body portion 21 are improved.

[0091] In one embodiment, along the height direction Z of the photovoltaic frame 2, the buffer portion 22 is provided on one side of the body portion 21, that is, the buffer portion 22 is connected to the first body 212, and a buffer cavity 23 is formed by the buffer portion 22 and a part of the first body 212. Or, the buffer portion 22 is connected to the second body 213, and a buffer cavity 23 is formed by the buffer portion 22 and a part of the second body 213, so as to simplify the structure of the photovoltaic frame 2.

[0092] In another embodiment, as Figure 2 、 Figure 3 and Figure 4 shown, along the height direction Z of the photovoltaic frame 2, the buffer portion 22 is provided on both sides of the body portion 21, so that both sides of the photovoltaic frame 2 have strong anti-extrusion performance, further reducing the risk of the laminate 1 being cracked or damaged due to stress concentration. Specifically, as Figure 2 、 Figure 3 and Figure 4 shown, the buffer portion 22 includes a first buffer portion 221 and a second buffer portion 222 provided on both sides of the body portion 21 along the height direction Z of the photovoltaic frame 2. The buffer cavity 23 includes a first cavity 231 and a second cavity 232. The first buffer portion 221 is connected to the first body 212, and a first cavity 231 is formed by the first buffer portion 221 and a part of the first body 212. The second buffer portion 222 is connected to the second body 213, and a second cavity 232 is formed by the second buffer portion 222 and a part of the second body 213.

[0093] Wherein, along the height direction Z of the photovoltaic frame 2, the height of the first cavity 231 is h1, and the height of the second cavity 232 is h2. h1 and h2 satisfy: 1:1 ≤ h1 / h2 ≤ 7:3. Specifically, h1 / h2 can be equal to 1, 4 / 3, 5 / 3, 2, 7 / 3, etc. Specifically, the height of the first cavity 231 can be equal to the height of the second cavity 232, that is, H1 = H2. Or, the height of the first cavity 231 is less than the height of the second cavity 232, that is, H1 < H2. At this time, 1 < H2 / H1 ≤ 7:3. Or, the height of the first cavity 231 is greater than the height of the second cavity 232, that is, H2 < H1. At this time, 1 < H1 / H2 ≤ 7:3.

[0094] In this embodiment, the ratio of the height of the first cavity 231 to the height of the second cavity 232 is less than 7 / 3, which reduces the height difference between the first cavity 231 and the second cavity 232, thereby facilitating the reduction of the overall height of the photovoltaic frame 2 and reducing the cost of the photovoltaic frame 2. At the same time, the height difference between the first cavity 231 and the second cavity 232 is small. When installing a plurality of photovoltaic frames 2 at the edge position of the laminate 1, the risk that some of the photovoltaic frames 2 are installed in reverse and cause the photovoltaic module to be placed unstably is reduced, thereby reducing the risk of tilting and damage during the transportation of the photovoltaic module.

[0095] Along the height direction Z of the photovoltaic frame 2, the height H of the photovoltaic frame 2 satisfies: 25 mm ≤ H ≤ 40 mm. Specifically, the height of the photovoltaic frame 2 can be 25 mm, 27.6 mm, 31 mm, 36.8 mm, 40 mm, etc.

[0096] In this embodiment, if the height of the photovoltaic frame 2 is small, that is, H < 25 mm, then on the premise of ensuring the height dimension of the installation groove 211, the height dimensions of the first cavity 231 and the second cavity 232 are small. When the photovoltaic frame 2 is under pressure, there is a risk that the buffer portion 22 abuts against the body portion 21 and transmits the external pressure to the laminate 1; if the height of the photovoltaic frame 2 is large, that is, H > 40 mm, then on the premise of ensuring the height dimension of the installation groove 211, the height dimensions of the first cavity 231 and the second cavity 232 are large, resulting in waste of materials for the photovoltaic frame 2 and increasing the installation space required for the photovoltaic frame 2. Therefore, 25 mm ≤ H ≤ 40 mm can reduce the height of the photovoltaic frame 2, thereby reducing the material cost of the photovoltaic frame 2. At the same time, the buffering effect of the buffer portion 22 is increased, and the risk of extrusion damage to the laminate 1 is reduced.

[0097] Specifically, such as Figure 3 and Figure 4As shown, the first buffer portion 221 includes a first buffer wall 221a and a first connecting wall 221b. The first buffer wall 221a and the first body 212 are distributed along the height direction Z of the photovoltaic frame 2. In the width direction X of the photovoltaic frame 2, the first connecting wall 221b is located on the same side of the first buffer wall 221a and the first body 212. The two ends of the first connecting wall 221b are respectively connected to the first buffer wall 221a and the first body 212. The first buffer wall 221a, the first connecting wall 221b and the first body 212 enclose a first cavity 231; the second buffer portion 222 includes a second buffer wall 222a and a second connecting wall 222b. The second buffer wall 222a and the second body 213 are distributed along the height direction Z of the photovoltaic frame 2. In the width direction X of the photovoltaic frame 2, the second connecting wall 222b is located on the same side of the second buffer wall 222a and the second body 213. The two ends of the second connecting wall 222b are respectively connected to the second buffer wall 222a and the second body 213. The second buffer wall 222a, the second connecting wall 222b and the second body 213 enclose a first cavity 231.

[0098] Wherein, the first connecting wall 221b can extend vertically along the height direction Z of the photovoltaic frame 2 or extend obliquely. The embodiment of the present application does not make special limitations on the extending direction of the first connecting wall 221b. Similarly, the second connecting wall 222b can extend vertically along the height direction Z of the photovoltaic frame 2 or extend obliquely. The embodiment of the present application does not make special limitations on the extending direction of the second connecting wall 222b.

[0099] The first buffer wall 221a, the first connecting wall 221b, the first body 212, the third body 214, the second body 213, the second connecting wall 222b and the second buffer wall 222a are all integrally formed, reducing the risk of the photovoltaic frame 2 disintegrating during transportation and use, thereby increasing the structural stability of the photovoltaic frame 2 and being beneficial to extending the service life of the photovoltaic frame 2.

[0100] In one embodiment, as Figure 2 、 Figure 3 and Figure 4As shown, at one end of the first buffer wall 221a away from the first connection wall 221b, there is a first flanging 221c. The first flanging 221c and the first buffer wall 221a are stacked along the height direction Z of the photovoltaic frame 2. A first opening 221d is formed at the first flanging 221c. In the width direction X of the photovoltaic frame 2, the first cavity 231 communicates with the outside through the first opening 221d. In the height direction Z of the photovoltaic frame 2, the first flanging 221c is located on the side of the first buffer wall 221a close to the first body 212, or the first flanging 221c is located on the side of the first buffer wall 221a away from the first body 212; and / or, at one end of the second buffer wall 222a away from the second connection wall 222b, there is a second flanging 222c. The second flanging 222c and the second buffer wall 222a are stacked along the height direction Z of the photovoltaic frame 2. A second opening 222d is formed at the second flanging 222c. In the width direction X of the photovoltaic frame 2, the second cavity 232 communicates with the outside through the second opening 222d. In the height direction Z of the photovoltaic frame 2, the second flanging 222c is located on the side of the second buffer wall 222a close to the second body 213, or the second flanging 222c is located on the side of the second buffer wall 222a away from the second body 213.

[0101] In this embodiment, the first flanging 221c is provided to form the first opening 221d, and the second flanging 222c is provided to form the second opening 222d, so that the first buffer wall 221a and the second buffer wall 222a are in a suspended state, thereby increasing the deformation amount of the first buffer wall 221a and the second buffer wall 222a, thereby increasing the external force that the photovoltaic frame 2 can withstand, and further improving the buffering effect of the photovoltaic frame 2. At the same time, by providing the first flanging 221c and the second flanging 222c, the edges of the first buffer wall 221a and the second buffer wall 222a are arc-shaped, reducing the risk of scratching the operator or external parts during the transportation, installation, and use of the photovoltaic frame 2, and further improving the use safety of the photovoltaic frame 2.

[0102] In another embodiment, as Figure 6 、 Figure 7 and Figure 8 shown, the photovoltaic frame 2 includes a connection body 24. One end of the first buffer wall 221a away from the first connection wall 221b and one end of the second buffer wall 222a away from the second connection wall 222b are respectively connected to the connection body 24. In the width direction X of the photovoltaic frame 2, the connection body 24 seals the first cavity 231 and the second cavity 232.

[0103] In this embodiment, the connecting body 24 can support the first buffer wall 221a and the second buffer wall 222a, thereby reducing the inclination degree of the first buffer wall 221a and the second buffer wall 222a under the action of external force, and thus reducing the risk of cracking and damage at the joints between the first buffer wall 221a and the first connecting wall 221b, and between the second buffer wall 222a and the second connecting wall 222b under the action of external force. Furthermore, the structural strength of the photovoltaic frame 2 is improved, which is beneficial to extending the service life of the photovoltaic frame 2.

[0104] Wherein, the connecting body 24 is integrally formed with the first buffer wall 221a and the second buffer wall 222a to increase the connection stability between the connecting body 24 and the first buffer wall 221a and the second buffer wall 222a, reduce the risk of the photovoltaic frame 2 disassembling during transportation and use, thereby increasing the structural stability of the photovoltaic frame 2, and being beneficial to extending the service life of the photovoltaic frame 2.

[0105] In any of the above embodiments, as Figure 5 and Figure 9 shown, the photovoltaic frame 2 further includes corner codes 27, and the first frame 25 and the adjacent second frame 26 are fixedly connected through the corner codes 27.

[0106] In this embodiment, the first frame 25 and the adjacent second frame 26 are fixedly connected through the corner codes 27, which simplifies the connection structure between the first frame 25 and the second frame 26, thereby reducing the connection cost between the first frame 25 and the second frame 26, and being beneficial to reducing the overall size of the photovoltaic frame 2.

[0107] Specifically, the first cavity 231 on the first frame 25 is a first hollow cavity, the second cavity 232 is a second hollow cavity, the first cavity 231 on the second frame 26 is a third hollow cavity, and the second cavity 232 is a fourth hollow cavity. As Figure 10 shown, the corner code 27 includes a first connecting portion 271 and a second connecting portion 272. In one embodiment, one corner code 27 is provided between one first frame 25 and one second frame 26, that is, at least part of the first connecting portion 271 is located in the first hollow cavity and fixedly connected to the first connecting wall 221b of the first frame 25, and at least part of the second connecting portion 272 is located in the third hollow cavity and fixedly connected to the first connecting wall 221b of the second frame 26; or, at least part of the first connecting portion 271 is located in the second hollow cavity and fixedly connected to the second connecting wall 222b of the first frame 25, and at least part of the second connecting portion 272 is located in the fourth hollow cavity and fixedly connected to the second connecting wall 222b of the second frame 26. In another embodiment, as Figure 5 and Figure 9As shown, between a first frame 25 and a second frame 26, two corner brackets 27 are provided and distributed along the height direction Z of the photovoltaic frame 2 to increase the connection stability between the first frame 25 and the second frame 26.

[0108] As Figure 5 , Figure 9 and Figure 10 shown, at least one mounting hole 28 is provided on both the first connection wall 221b and the second connection wall 222b of the photovoltaic frame 2. At least one first mating portion 271a is provided on the first connection portion 271 of the corner bracket 27, and at least one second mating portion 272a is provided on the second connection portion 272. During the process of fixedly connecting the corner bracket 27 to the first frame 25, one end of the connecting member passes through the mounting hole 28 and is fixedly connected to the first mating portion 271a. During the process of fixedly connecting the corner bracket 27 to the second frame 26, one end of the connecting member passes through the mounting hole 28 and is fixedly connected to the second mating portion 272a. The connecting member includes but is not limited to screws, bolts, rivets, pins, etc. The specific type of the connecting member is not particularly limited in the embodiments of the present application.

[0109] As Figure 5 , Figure 9 and Figure 10 shown, the corner bracket 27 is further provided with a buffer hole 273. When the corner bracket 27 is subjected to an external force, a part of the corner bracket 27 can deform towards the inside of the buffer hole 273, and the external force is offset by the deformation of the corner bracket 27, thereby reducing the risk of damage to the corner bracket 27, being beneficial to extending the service life of the corner bracket 27, and being beneficial to improving the connection stability between the first frame 25 and the second frame 26.

[0110] In any of the above embodiments, as Figure 11 and Figure 12 shown, the photovoltaic module further includes a pressing block 3. The pressing block 3 is connected to the photovoltaic frame 2 and is used to mount the photovoltaic module on a building body. The building body can be a roof, a wall, a color steel tile installed on the roof or the wall, etc. The specific type of the building body is not particularly limited in the embodiments of the present application.

[0111] In this embodiment, one end of the pressing block 3 is snap-connected to the photovoltaic frame 2, and the other end is fixedly connected to the building body, reducing the risk that the direct connection between the photovoltaic frame 2 and the building body causes the complex structure of the photovoltaic frame 2. Thus, the structure of the photovoltaic frame 2 is simplified, the processing cost of the photovoltaic frame 2 is reduced. At the same time, the connection structure between the photovoltaic frame 2 and the building body is simplified, the number of parts required for connecting the photovoltaic frame 2 and the building body is reduced, and further the installation cost of the photovoltaic frame 2 is reduced, and it is beneficial to reducing the installation space required for the photovoltaic frame 2.

[0112] Specifically, as Figure 13As shown, the pressing block 3 includes an installation body 31 extending along the width direction X of the photovoltaic frame 2, and the installation body 31 is used for fixedly connecting with the building body; one end of the installation body 31 close to the photovoltaic frame 2 is connected with a hook 32, and the hook 32 encloses a receiving space 321, at least part of the photovoltaic frame 2 is located in the receiving space 321, and in the height direction Z of the photovoltaic frame 2, at least part of the photovoltaic frame 2 abuts against the hook 32. The hook 32 is used for pressing the photovoltaic frame 2 to limit the movement of the photovoltaic frame 2 in its own height direction Z, so as to press the photovoltaic frame 2 between the pressing block 3 and the building body, and further realize the connection and fixation of the photovoltaic module and the building body.

[0113] In this embodiment, by pressing the photovoltaic frame 2 with the hook 32, the connection method between the pressing block 3 and the photovoltaic frame 2 is simplified, thereby simplifying the structures of the pressing block 3 and the photovoltaic frame 2 and reducing the processing costs of the pressing block 3 and the photovoltaic frame 2.

[0114] As Figures 11 to 14 shown, a through hole 311 is provided on the installation body 31. Along the height direction Z of the photovoltaic frame 2, the through hole 311 penetrates through the installation body 31. One end of a fastener passes through the through hole 311 and is threadedly connected with a threaded hole on the building body to realize the fixed connection between the pressing block 3 and the building body.

[0115] Specifically, as Figure 13 and Figure 14 shown, the hook 32 includes a first hook body 322 and a second hook body 323. One end of the first hook body 322 is connected with the installation body 31, and the other end extends in the direction away from the installation body 31 in the height direction Z of the photovoltaic frame 2 and is connected with the second hook body 323. In the width direction X of the photovoltaic frame 2, one end of the second hook body 323 away from the first hook body 322 extends towards the direction close to the photovoltaic frame 2. The first hook body 322 and the second hook body enclose the receiving space 321. In the height direction Z of the photovoltaic frame 2, the photovoltaic frame 2 is located between the second hook body and the building body, and the photovoltaic frame 2 abuts against the second hook body 323.

[0116] As Figure 13 and Figure 14 shown, the surface of the second hook body 323 for abutting against the photovoltaic frame 2 is a pressing surface. In the width direction X of the photovoltaic frame 2, a first inclined surface 323b is provided on the side of the pressing surface away from the first hook body 322. The first inclined surface 323b extends obliquely towards the direction close to the photovoltaic frame 2 and abuts against the edge of the photovoltaic frame 2 to limit the movement of the photovoltaic frame 2 in its own width direction X.

[0117] As Figure 13 and Figure 14As shown, the included angle α1 between the extending direction of the first hook body 322 and the height direction Z of the photovoltaic frame 2 satisfies: 0 ≤ α1 < 90°. Specifically, the included angle between the extending direction of the first hook body 322 and the height direction Z of the photovoltaic frame 2 can be 0°, 1°, 18°, 28°, 34°, 46°, 51°, 67°, 82°, etc. The included angle α2 between the extending direction of the second hook body 323 and the height direction Z of the photovoltaic frame 2 satisfies: 0 < α2 ≤ 90°. Specifically, the included angle between the extending direction of the second hook body 323 and the height direction Z of the photovoltaic frame 2 can be 1°, 18°, 28°, 34°, 46°, 51°, 67°, 82°, 90°, etc. In the embodiments of the present application, the extending direction of the first hook body 322 and the extending direction of the second hook body 323 are not specifically limited, so as to increase the structural flexibility of the pressing block 3.

[0118] As Figures 11 to 14 shown, on the height direction Z of the photovoltaic frame 2, a second inclined surface 323c is provided on the side of the second hook body 323 away from the photovoltaic frame 2. On the width direction X of the photovoltaic frame 2, one end of the second inclined surface 323c away from the first hook body 322 extends obliquely towards the direction close to the photovoltaic frame 2, that is, the thickness of the end of the second hook body 323 away from the first hook body 322 is less than the thickness of the end of the second hook body 323 close to the first hook body 322. When the laminate 1 is stressed and deformed along the height direction Z of the photovoltaic frame 2, the part of the photovoltaic frame 2 in contact with the second hook body 323 undergoes local deformation along the height direction Z of the photovoltaic frame 2 following the laminate 1. By providing the second inclined surface 323c, the thickness dimension of the edge position of the second hook body 323 is reduced, and the pressure of the second hook body 323 on the photovoltaic frame 2 during the deformation of the photovoltaic frame 2 is reduced, thereby reducing the risk of damage to the photovoltaic frame 2 due to stress concentration.

[0119] As Figure 11 and Figure 12 shown, the surface of the second hook body 323 for contacting the photovoltaic frame 2 is a pressing surface. As Figure 13 and Figure 14 shown, a first groove 323a is provided on the pressing surface. A plurality of first grooves 323a are spaced along the width direction X of the photovoltaic frame 2, that is, at least part of the pressing surface has an uneven structure. After the pressing surface is in contact with and presses the photovoltaic frame 2, the photovoltaic frame 2 applies pressure to the pressing surface. The protruding parts on the pressing surface will undergo local deformation under the action of the pressure and squeeze the first groove 323a, that is, the local part of the pressing surface deforms into the first groove 323a, reducing the risk of damage to the second hook body 323 under the action of a large pressure, and being beneficial to improving the pressing force of the second hook body 323 on the photovoltaic frame 2.

[0120] As Figures 11 to 14As shown, along the height direction Z of the photovoltaic frame 2, on the side of the mounting body 31 away from the hook 32, a support portion 33 is provided, and the support portion 33 is used to contact the building body.

[0121] In this embodiment, by setting the support portion 33, the dimensions of the mounting body 31 and the first hook body 322 in the height direction Z of the photovoltaic frame 2 are reduced, thereby reducing the material cost of the pressing block 3 and being beneficial to improving the structural strength of the first hook body 322, and further being beneficial to improving the working stability of the pressing block 3 during installation, transportation, and use.

[0122] Among them, as Figure 13 and Figure 14 shown, the surface of the support portion 33 for abutting against the building body is the support surface. As Figure 13 and Figure 14 shown, second grooves 331 are provided on the support surface, and a plurality of second grooves 331 are spaced apart along the width direction X of the photovoltaic frame 2. That is, at least part of the support surface has an uneven structure. When the support surface abuts and presses against the building body, the building body exerts pressure on the support surface, and the protruding parts on the support surface will undergo local deformation under the action of the pressure and squeeze the second grooves 331. That is, the local part of the support surface deforms into the second grooves 331, reducing the risk of damage to the support portion 33 under the action of a large pressure.

[0123] In addition, as Figures 11 to 14 shown, the support portion 33 and the mounting body 31 are connected by a support arm 34, thereby further reducing the dimensions of the support portion 33, the mounting body 31, and the first hook body 322 in the height direction Z of the photovoltaic frame 2 and reducing the cost of the pressing block 3.

[0124] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A photovoltaic frame, characterized in that, The photovoltaic frame (2) includes: A main body part (21), and an installation groove (211) for installing a laminate (1) is provided on the main body part (21); A buffer part (22), the buffer part (22) is installed on the main body part (21), a buffer cavity (23) is formed by the buffer part (22) and a part of the main body part (21), and the buffer cavity (23) and the installation groove (211) are distributed along the height direction (Z) of the photovoltaic frame (2); Along the height direction (Z) of the photovoltaic frame (2), the buffer part (22) is arranged on both sides of the main body part (21); The buffer part (22) includes a first buffer part (221) and a second buffer part (222) arranged on both sides of the main body part (21) along the height direction (Z) of the photovoltaic frame (2), the buffer cavity (23) includes a first cavity (231) and a second cavity (232), the first buffer part (221) and a part of the main body part (21) enclose the first cavity (231), and the second buffer part (222) and a part of the main body part (21) enclose the second cavity (232); The first buffer part (221) includes a first buffer wall (221a) and a first connecting wall (221b), the first buffer wall (221a) and the main body part (21) are distributed along the height direction (Z) of the photovoltaic frame (2), one end of the first buffer wall (221a) is connected to the main body part (21) through the first connecting wall (221b), and the first buffer wall (221a), the first connecting wall (221b) and a part of the main body part (21) enclose the first cavity (231); The second buffer part (222) includes a second buffer wall (222a) and a second connecting wall (222b), the second buffer wall (222a) and the main body part (21) are distributed along the height direction (Z) of the photovoltaic frame (2), one end of the second buffer wall (222a) is connected to the main body part (21) through the second connecting wall (222b), and the second buffer wall (222a), the second connecting wall (222b) and a part of the main body part (21) enclose the second cavity (232); One end of the first buffer wall (221a) far from the first connecting wall (221b) is provided with a first flanging (221c), the first flanging (221c) and the first buffer wall (221a) are stacked along the height direction (Z) of the photovoltaic frame (2), a first opening (221d) is formed at the first flanging (221c), and in the width direction (X) of the photovoltaic frame (2), the first cavity (231) communicates with the outside through the first opening (221d); One end of the second buffer wall (222a) far from the second connecting wall (222b) is provided with a second flanging (222c). The second flanging (222c) and the second buffer wall (222a) are stacked along the height direction (Z) of the photovoltaic frame (2). A second opening (222d) is formed at the second flanging (222c). In the width direction (X) of the photovoltaic frame (2), the second cavity (232) communicates with the outside through the second opening (222d). Alternatively, the photovoltaic frame (2) further includes a connecting body (24). One end of the first buffer wall (221a) far from the first connecting wall (221b) and one end of the second buffer wall (222a) far from the second connecting wall (222b) are respectively connected to the connecting body (24). In the width direction (X) of the photovoltaic frame (2), the connecting body (24) seals the first cavity (231) and the second cavity (232), and the first cavity (231) and the second cavity (232) communicate with each other.

2. The photovoltaic frame according to claim 1, wherein Along the height direction (Z) of the photovoltaic frame (2), the height of the first cavity (231) is h1, and the height of the second cavity (232) is h2. h1 and h2 satisfy: 1:1 ≤ h1 / h2 ≤ 7:

3.

3. The photovoltaic frame according to any one of claims 1 to 2, characterized in that Along the height direction (Z) of the photovoltaic frame (2), the height H of the photovoltaic frame (2) satisfies: 25 mm ≤ H ≤ 40 mm.

4. The photovoltaic frame according to any one of claims 1 to 2, characterized in that, The photovoltaic frame (2) includes a first frame (25) and a second frame (26). Among the first frame (25) and the second frame (26), one is used to install the long side of the laminate (1), and the other is used to install the short side of the laminate (1). The photovoltaic frame (2) further includes a corner connector (27). The corner connector (27) includes a first connecting portion (271) and a second connecting portion (272). At least part of the first connecting portion (271) is located in the buffer cavity (23) of the first frame (25) and is fixedly connected to the first frame (25). At least part of the second connecting portion (272) is located in the buffer cavity (23) of the second frame (26) and is fixedly connected to the second frame (26).

5. A photovoltaic module, characterized in that, The photovoltaic module includes: a laminate (1); the photovoltaic frame (2) according to any one of claims 1 to 4; a pressing block (3) connected to the photovoltaic frame (2) and used to install the photovoltaic module on a building body.

6. The photovoltaic module according to claim 5, wherein, The pressing block (3) includes an installation body (31) extending along the width direction (X) of the photovoltaic frame (2), and the installation body (31) is used to be fixedly connected to the building body. One end of the installation body (31) close to the photovoltaic frame (2) is connected with a hook (32). The hooks (32) enclose an accommodation space (321), and at least part of the photovoltaic frame (2) is located in the accommodation space (321). In the height direction (Z) of the photovoltaic frame (2), at least part of the photovoltaic frame (2) abuts against the hook (32), and the hook (32) is used to press the photovoltaic frame (2).

7. The photovoltaic module according to claim 6, characterized in that, Along the height direction (Z) of the photovoltaic frame (2), a support part (33) is arranged on one side of the installation body (31) away from the hook (32), and the support part (33) is used to contact the building body.

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