CN219107370U - Frame and photovoltaic module - Google Patents

Abstract

The utility model discloses a frame and a photovoltaic module, relates to the technical field of photovoltaics, and aims to solve the problem that quality of the photovoltaic module is reduced due to the fact that an angle code is not firmly connected with a frame body. The frame comprises a frame body and corner codes. The frame body includes along its length direction's clamping cavity, along the width direction of frame body, the clamping cavity includes relative and the first side and the second side that the interval set up and along the direction of height of frame body, relative and the first terminal surface and the second terminal surface that the interval set up. The first side surface is provided with a groove part along the length direction of the frame body. The angle sign indicating number includes two linkage segments and two fixed sections, and the first end of two linkage segments is connected and is "L" setting, and the second end of two linkage segments is elastic connection respectively and is located the first end of two fixed sections of two linkage segment ends. The second end of the fixing section is clamped with the groove part, a blocking piece is arranged on the second end face, and the connecting section is abutted with the second side face and arranged between the second side face and the blocking piece.

Description

Frame and photovoltaic module

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a frame and a photovoltaic module.

Background

Photovoltaic modules typically include a laminate, a junction box, and a bezel. The frame generally comprises four frame bodies and four corner brackets, wherein each frame body is provided with a mounting groove for mounting the laminated piece and a clamping cavity for setting the corner brackets.

In the prior art, a plurality of riveting points with a certain depth (namely, a plurality of protrusions are formed on the inner wall of the clamping cavity) are generally formed on the inner wall of the clamping cavity of the frame body in a punching mode, and a plurality of saw teeth are manufactured on the corner codes to form saw tooth edges. In the actual use process, the sawtooth edge of angle sign indicating number and above-mentioned riveting point interference fit, and then utilize angle sign indicating number two adjacent frame bodies fastening connection.

However, the depths of the plurality of rivet points are not uniform due to the problem of manufacturing accuracy. At this time, the phenomenon that the corner connector is not firmly connected with the riveting point or cannot be contacted easily occurs. Based on this, can lead to adjacent two frame body connection insecurity, and then reduce photovoltaic module's quality.

Disclosure of Invention

The utility model aims to provide a frame and a photovoltaic module, which are used for improving the connection firmness of corner codes and a frame body so as to improve the quality of the photovoltaic module.

To achieve the above object, in a first aspect, the present utility model provides a bezel. The frame comprises a frame body and corner codes. The frame body includes along the clamping cavity of the length direction extension of frame body, along the width direction of frame body, clamping cavity includes relative and the first side and the second side that the interval set up. The first side surface is provided with a groove part along the length direction of the frame body. Along the direction of height of frame body, the clamping cavity is including relative and first terminal surface and the second terminal surface that the interval set up, and first terminal surface, first side, second terminal surface and second side connect gradually enclose and close and form confined clamping cavity, are provided with the barrier on the second terminal surface. The angle sign indicating number includes two linkage segments and two fixed sections, and the first end of two linkage segments is connected and is "L" setting, and the second end of two linkage segments is elastic connection respectively and is located the first end of two fixed sections of two linkage segment ends. The second end of the fixing section is clamped with the groove part, and the connecting section is abutted with the second side face and arranged between the second side face and the blocking piece.

Compared with the prior art, in the frame provided by the utility model, the groove part is arranged on the first side surface along the length direction of the frame body, and the second end of the fixing section is clamped with the groove part. Therefore, when the corner connector receives a pulling-out force along the length direction of the frame body, the second end of the fixing section can prevent the corner connector from separating from the groove part under the blocking effect of the groove part, namely, the groove part can prevent the corner connector from separating from the frame body, so that the connection firmness of the corner connector and the frame body is ensured. And, because the groove part is arranged on the first side, the groove part can be clamped with the second end of the fixed section only by the depth, and the situation that the depth of the groove part is inconsistent or the depth does not reach a certain value and cannot be clamped with the fixed section can not occur. Based on the method, the phenomenon that the corner connector is not firmly connected with the riveting point or cannot be contacted due to inconsistent riveting point depths in the prior art can be avoided.

Further, since the connecting section abuts against the second side face, and the second end of the connecting section is elastically connected with the first end of the fixing section. Therefore, in the process that the corner connector enters the clamping cavity, the fixing section and the connecting section are extruded, so that the corner connector penetrates into the clamping cavity. After the corner connector enters the clamping cavity, the fixing section or the connecting section restores the shape until the second end of the fixing section is clamped with the groove part, and the connecting section is abutted with the second side face of the clamping cavity. Based on this, can further make angle sign indicating number and clamping cavity fastening connection, and then further ensure angle sign indicating number and frame body connection's fastness.

Still further, because the connecting section and the fixing section are hollow areas, when the corner connector is installed in the clamping cavity, the connecting section cannot move towards the second side face under the blocking of the second side face, but has a tendency to move towards the first side face. In the utility model, the distance between the connecting section and the first side can be limited by the blocking piece, so that the connecting section is prevented from moving towards the first side, namely, the corner bracket is fixed along the width direction of the frame body. As can be seen from the foregoing description, the corner connector can be fixed along the length direction of the frame body by using the snap fit of the fixing section and the groove portion and the abutting connection of the connecting section and the second side surface. Therefore, the corner connector is fixed along the width and length directions of the frame body. Based on this, after the angle sign indicating number sets up in the clamping cavity, can fastening connection two adjacent frame bodies to reduce or avoid appearing the frame body and appear the condition of crack between two adjacent frame bodies when receiving top-down's pressure.

In summary, since each corner code is fastened to the frame body to be connected, at this time, the probability of the connection between the corner code and the frame body being unstable can be reduced or eliminated, so that the connection between two adjacent frame bodies is reduced or avoided, and the quality of the photovoltaic module is improved.

In one implementation manner, the corner connector further comprises a transition section, and two ends of the transition section are respectively and elastically connected with the second end of the connecting section and the first end of the fixing section.

Under the condition of adopting the technical scheme, the transition section can enlarge the deformation space between the fixed section and the connecting section, and the rebound resilience of the fixed section or the connecting section is ensured. That is, the transition section can further ensure that the fixing section or the connecting section can recover the shape after the corner connector enters the clamping cavity, and further ensure that the second end of the fixing section is clamped with the groove part and the connecting section is abutted with the second side surface of the clamping cavity.

In one implementation, the orthographic projection of the transition section on the horizontal plane is an arc section, and the central angle corresponding to the arc section is located between the connecting section and the fixed section.

Under the condition of adopting the technical scheme, the transition section can also be bent in the process that the corner connector enters the clamping cavity. Because the central angle corresponding to the circular arc section is positioned between the connecting section and the fixed section, compared with the condition that the central angle deviates from the connecting section and the fixed section, the transition section provided by the utility model has better rebound resilience and is easier to recover the shape, thereby being beneficial to driving the fixed section or the connecting section to recover the shape.

In one implementation, the height of the connection section gradually decreases along the direction from the first end to the second end of the connection section, and the height of the clamping cavity is less than or equal to the height of the first end of the connection section.

Under the condition of adopting the technical scheme, in the process that the corner connector enters the clamping cavity, the second end of the connecting section firstly enters the clamping cavity. At this moment, the minimum second end of height can play the guide effect, and guide linkage segment and with linkage segment elastic connection's quick entering clamping cavity of fixed section realize the equipment of angle sign indicating number and frame body. Further, because the height of the clamping cavity is smaller than or equal to the height of the first end of the connecting section, the first end of the connecting piece can be abutted with the frame body in the height direction at the moment, so that the firmness of connection of the corner connector and the frame body is further improved.

In one implementation, the spacing between the connection segment and the corresponding fixed segment increases gradually in a direction from the second end to the first end of the connection segment.

Under the condition of adopting the technical scheme, after the corner connector enters the clamping cavity, the fixing section beneficial to shape recovery is clamped with the groove part. Further, because the distance between the connecting section and the corresponding fixed section is gradually increased, the extruded fixed section is beneficial to recovering the shape, and the probability of being blocked in the process that the fixed section is far away from the connecting section to recover the shape is reduced or avoided, so that the fixed section can work normally.

In one implementation, the fixed segment further includes a boss that protrudes from the fixed segment in a direction away from the connecting segment. The first end of bellying is connected in fixed section, and the bellying is located between fixed section's first end and the second end, and bellying's second end and recess portion joint, bellying extend towards fixed section's second end from fixed section's first end.

Under the condition of adopting the technical scheme, in the actual use process, if the fixing section is out of question and is not clamped with the groove part, the convex part and the groove part can be clamped at the moment. That is, the protruding portion clamped with the groove portion can be used as a spare part to ensure that the corner connector and the frame body are normally connected. Further, if the fixing section is clamped with the groove portion, the second end of the protruding portion is also clamped with the groove portion. At this moment, fixed section and bellying can regard as two-stage guarantee, improve the fastness that the angle sign indicating number is connected with the frame body.

In one implementation, the blocking member has a first receiving groove between the blocking member and the second side surface, and a second receiving groove between the second side surface and the first end surface. Along the direction of height of linkage segment, the linkage segment sets up between first holding tank and second holding tank, and first holding tank and second holding tank are used for prescribing a limit to the distance between linkage segment and the first side.

Under the condition of adopting the technical scheme, because the hollow area is between the connecting section and the fixed section, after the corner connector is installed in the clamping cavity, the connecting section can not move towards the second side under the blocking of the second side, but has the trend of moving towards the first side. In the utility model, the distance between the connecting section and the first side can be limited by the first accommodating groove and the second accommodating groove, so that the connecting section is prevented from moving towards the first side, namely, the corner connector is fixed along the width direction of the frame body. As can be seen from the foregoing description, the corner connector can be fixed along the length direction of the frame body by using the snap fit of the fixing section and the groove portion and the abutting connection of the connecting section and the second side surface. In summary, the corner brace of the present utility model is fixed along the width and length directions of the frame body. Based on this, after the angle sign indicating number sets up in the clamping cavity, can fastening connection two adjacent frame bodies to reduce or avoid appearing the frame body and appear the condition of crack between two adjacent frame bodies when receiving top-down's pressure.

Further, there is a corner brace in the prior art, which includes a first portion and a second portion that are symmetrically disposed, and the first portion is described below as an example. The first part is including interval setting and the first linkage segment and the second linkage segment of connection, is provided with four elasticity anticreep pieces on first linkage segment, and back in this internal back of short side frame is got into to first part, the protruding butt of elasticity anticreep piece and short side frame body inside to make first part and short side frame body connection. Because a gap is formed between the first connecting section and the second connecting section, when the elastic anti-falling piece is abutted against the protrusion inside the short frame body, the first connecting section moves towards the second connecting section (namely, in the first direction). Based on this, the transition between the first portion and the second portion will also move towards the second connection section, thereby causing the second portion to deform in the second direction. At this time, not only can make the second part deviate from the predetermined track unable with long frame body alignment, lead to the second part of angle sign indicating number be difficult for getting into long frame body, can also lead to the unable protruding butt with long frame body inside of elasticity anticreep spare of second part simultaneously, and then the unable length frame body of connection of angle sign indicating number of messenger.

However, in the present utility model, since the stopper is provided on the second end surface, the connection section can be brought into contact with the second side surface by the engagement of the first accommodation groove and the second accommodation groove. In order to facilitate description, the corner code clamped with the long frame body is defined as a first corner code, and the corner code clamped with the short frame body is defined as a second corner code. After second angle sign indicating number and short side frame body joint, the linkage segment in the second angle sign indicating number can not move to the direction that is close to first side under the restriction of first holding tank and second holding tank, also can not move to the direction that is away from first side, and the linkage segment can not take place the deformation promptly. At this time, the connecting section of the second angle code can be prevented from driving the connecting section of the first angle code to move in the direction away from the first side surface, i.e. the connecting section of the second angle code cannot be driven to move in the direction away from the first side surface. Based on this, can ensure that first angle sign indicating number and the clamping cavity of long frame body align to make the smooth clamping cavity of long frame body of getting into of first angle sign indicating number. And the connecting section is elastically connected with the fixing section, so that after the first angle code enters the clamping cavity, the second end of the fixing section can be smoothly clamped with the groove part, and the firmness of the connection of the angle code and the frame body is ensured. Namely, the pushing distance of the second corner code in the long frame body is not influenced by the elastic deformation of the first corner code.

In one implementation, the distance between the barrier and the second side is 0.5 mm to 2 mm.

Under the condition of adopting the technical scheme, the position selectivity of the blocking piece is increased, so that the frame can adapt to different application scenes, and the application range of the frame is enlarged.

In one implementation, the first end surface includes a curved surface, and the first end surface and the second end surface are connected by the curved surface. The curved surface is convenient to process, the manufacturing difficulty of the frame can be reduced, and the working efficiency is improved.

In a second aspect, the utility model further provides a photovoltaic module. The photovoltaic module comprises a laminated piece and a frame clamped at the periphery of the laminated piece, wherein the frame is the frame in the technical scheme.

Compared with the prior art, the photovoltaic module has the same beneficial effects as the frame in the technical scheme, and the description is omitted here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a first corner connector in the prior art;

FIG. 2 is a schematic view illustrating assembly of a first corner brace and a frame body according to the prior art;

FIG. 3 is a schematic view showing the positions of a first corner brace, a short frame body and a long frame body according to an embodiment of the present utility model;

FIG. 4 is a front view of a bezel body according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a first corner connector according to an embodiment of the present utility model;

FIG. 6 is a top view of a first corner key according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a second corner connector according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of a frame body according to an embodiment of the present utility model;

FIG. 9 is a cross-sectional view of a portion of the structure of a bezel body according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a second prior art corner connector;

fig. 11 is a top view of a metal plate in an embodiment of the utility model.

Reference numerals:

1-a frame body, 10-riveting points, 11-a short frame body,

12-a long frame body, H-a height direction, D-a length direction,

w-width direction, 2-angle code, 20-saw tooth,

30-mounting slots, 31-snap-fit cavities, 310-first side,

311-second side, 312-first end, 313-second end,

32-groove portions, 330-connecting sections, 3300-end faces,

331-fixed segment, 3310-line segment, 332-transition segment,

333-bosses, 34-stops, 35-second receiving slots,

4-first part, 40-first connecting section, 41-second connecting section,

42-elastic anti-drop member, 5-second portion, 6-transition,

7-first direction, 8-second direction, 9-metal plate.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 2, in the prior art, a plurality of riveting points 10 with a certain depth are generally punched on the inner wall of the clamping cavity of the frame body 1 (i.e. a plurality of protrusions are formed on the inner wall of the clamping cavity), and a plurality of saw teeth 20 are manufactured on the corner bracket 2 to form saw tooth edges. In the actual use process, the sawtooth edge of the corner connector 2 is in interference fit with the riveting point 10, and two adjacent frame bodies 1 are further fastened and connected by the corner connector 2.

However, the depths of the plurality of rivet points are not uniform due to the problem of manufacturing accuracy. At this time, the phenomenon that the corner connector is not firmly connected with the riveting point or cannot be contacted easily occurs. Based on this, can lead to adjacent two frame body connection insecurity, and then reduce photovoltaic module's quality.

In order to solve the above technical problems, in a first aspect, an embodiment of the present utility model provides a frame. Referring to fig. 3 to 6, the bezel may include a bezel body 1 and a corner key 2. The frame body 1 may include a clamping cavity 31 extending along a length direction D of the frame body 1, and along a width direction W of the frame body 1, the clamping cavity 31 includes a first side 310 and a second side 311 opposite to each other and disposed at intervals. Along the length direction D of the frame body 1, the first side 310 has a groove portion 32 thereon. Along the height direction H of the frame body, the clamping cavity 31 may include a first end surface 312 and a second end surface 313 that are opposite and spaced apart. The first end face 312, the first side face 310, the second end face 313 and the second side face 311 are sequentially connected and enclosed to form a closed clamping cavity 31, and the second end face 313 is provided with a blocking piece 34. The corner connector 2 may include two connecting sections 330 and two fixing sections 331, where the first ends of the two connecting sections 330 are connected and are in an "L" shape, and the second ends of the two connecting sections 330 are respectively elastically connected to the first ends of the two fixing sections 331 located at the ends of the two connecting sections 330. The second end of the fixing section 331 is clamped with the groove portion 32, and the connecting section 330 is abutted with the second side surface 311 and is arranged between the second side surface 311 and the blocking piece 34.

In an embodiment of the present utility model, the frame body may further include a mounting groove 30 for mounting the lamination, the mounting groove 30 is located above the clamping cavity 31, and the first end surface 312 is close to the mounting groove 30. As for the specific structure for forming the mounting groove, reference is made to the prior art, which will not be described in detail herein.

The number of the frame bodies and the corner codes included in the frame can be set according to actual conditions, and the frame is not particularly limited. For example, the frame may be a rectangular frame including two long frame bodies, two short frame bodies, and four corner pieces. For example, the plurality of groove portions may be formed on the first side by punching or milling. In addition, the two connecting sections and the two fixing sections of the corner connector can be integrally formed and welded together. In the embodiment of the utility model, the corner connector is of an integrally formed structure. At the moment, the welding fixture is convenient to process and manufacture, improves the working efficiency, saves the manufacturing cost, reduces the probability of cracking and damaging the corner connector at the welding position, and improves the safety and the firmness of the corner connector.

The groove portions may be grooves, and the number and depth of the groove portions may be set according to actual conditions, and are not particularly limited herein. When the groove portion is a groove, three possible implementations are described below as examples, and it should be understood that the following description is for understanding only and is not intended to be limiting in detail.

In an example one, a plurality of grooves are formed in the first side surface, a space is reserved between two adjacent grooves, and the extending direction of the grooves is parallel to the height direction of the frame body. At this time, the second end of the fixing section is clamped with the inner wall of the groove.

In the second example, a plurality of ribs are disposed on the first side, a space is formed between two adjacent ribs, and an extending direction of the ribs is parallel to a height direction of the frame body. At this time, a groove is formed between two adjacent ribs, and the second end of the fixing section is clamped with the outer side surface of the rib, namely, the second end of the fixing section is clamped with the groove formed between two adjacent ribs.

In an example three, a plurality of grooves are formed on the first side surface, and a plurality of ribs are formed on the first side surface simultaneously to form concave-convex portions, and the extending directions of the concave portions and the convex portions are parallel to the height direction of the frame body. At this time, the second end of the fixing section is clamped with the inner wall of the concave part.

Referring to fig. 3, in the embodiment of the present utility model, the groove portion 32 is a groove.

Referring to fig. 5, for example, the vertical distance between the connecting section 330 and the second end of the corresponding fixed section 331 may be M, and in an embodiment of the present utility model, it is understood that the vertical distance from the line section 3310 where the second end of the fixed section 331 is located to the end face 3300 of the connecting section 330 is M, that is, the vertical distance from the straight line to the face. It should be understood that this description is for explanation of the vertical distance M only.

Referring to fig. 1 to 6, in the frame provided by the embodiment of the utility model, the first side 310 has the groove portion 32 along the length direction of the frame body 1, and the second end of the fixing section 331 is clamped with the groove portion 32. Therefore, when the corner connector 2 receives a pulling force along the length direction of the frame body, the second end of the fixing section 331 can prevent the corner connector 2 from separating from the groove portion under the blocking effect of the groove portion 32, i.e. the groove portion 32 can prevent the corner connector 2 from separating from the frame body 1, thereby ensuring the connection firmness of the corner connector 2 and the frame body 1. Moreover, since the groove portion 32 is disposed on the first side 310, the groove portion 32 can be clamped with the second end of the fixed section 331 only by having a depth, and the situation that the groove portion 32 is inconsistent in depth or the depth does not reach a certain value and cannot be clamped with the fixed section 331 does not occur. Based on the method, the phenomenon that the corner connector is not firmly connected with the riveting point or cannot be contacted due to inconsistent riveting point depths in the prior art can be avoided.

Further, since the connection section 330 abuts against the second side 311, and the second end of the connection section 330 is elastically connected with the first end of the fixing section 331. Therefore, during the process of entering the clamping cavity 31, the fixing section 331 and the connecting section 330 are pressed, so that the corner 2 goes deep into the clamping cavity 31. After the corner connector 2 enters the clamping cavity 31, the fixed section 331 or the connecting section 330 resumes its shape until the second end of the fixed section 331 is clamped with the groove portion 32, and the connecting section 330 abuts against the second side 311 of the clamping cavity 31. Based on this, the corner connector 2 can be further fastened to the clamping cavity 31, and the connection firmness between the corner connector 2 and the frame body 1 can be further ensured.

Still further, since the connecting section 330 and the fixing section 331 are hollow, when the corner connector is mounted in the clamping cavity 31, the connecting section 330 is blocked by the second side 311 and does not move toward the second side 311, but tends to move toward the first side 310. In the embodiment of the present utility model, the blocking member 34 may define the distance between the connecting section 330 and the first side 310, so as to prevent the connecting section 330 from moving toward the first side 310, i.e. the corner bracket 2 is fixed along the width direction of the frame body. As can be seen from the foregoing description, the fixing section 331 and the groove portion 32 are engaged with each other and the connecting section 330 abuts against the second side surface, so that the corner bracket 2 can be fixed along the length direction of the frame body. Therefore, the corner connector 2 according to the embodiment of the utility model is fixed along the width and length directions of the frame body. Based on this, after the corner connector 2 is disposed in the clamping cavity 31, two adjacent frame bodies can be fastened and connected, so as to reduce or avoid the occurrence of a crack between two adjacent frame bodies when the frame bodies are under pressure from top to bottom.

In summary, since each corner code is fastened to the frame body to be connected, at this time, the probability of the connection between the corner code and the frame body being unstable can be reduced or eliminated, so that the connection between two adjacent frame bodies is reduced or avoided, and the quality of the photovoltaic module is improved.

As a possible implementation, referring to fig. 5 and 6, the aforementioned corner bracket 2 may further include a transition section 332, and two ends of the transition section 332 are elastically connected to the second end of the connecting section 330 and the first end of the fixing section 331, respectively.

Referring to fig. 5 and 6, at this time, the transition section 332 may increase the deformation space between the fixing section 331 and the connecting section 330, ensuring the resilience of the fixing section 331 or the connecting section 330. That is, the transition section 332 can further ensure that the fixing section 331 or the connecting section 330 can recover the shape after the corner connector 2 enters the clamping cavity, so as to ensure that the second end of the fixing section 331 is clamped with the groove portion, and the connecting section 330 is abutted with the second side surface of the clamping cavity.

In an alternative, referring to fig. 5 and 6, the orthographic projection of the transition section 332 on the horizontal plane is a circular arc section, and the central angle corresponding to the circular arc section is located between the connecting section 330 and the fixed section 331.

Referring to fig. 5 and 6, transition 332 may also buckle during entry of the corner fitting 2 into the snap-fit cavity. Because the central angle corresponding to the arc segment is located between the connecting segment 330 and the fixed segment 331, compared with the situation that the central angle deviates from the connecting segment 330 and the fixed segment 331, the transition segment 332 provided by the embodiment of the utility model has better rebound resilience and is easier to recover the shape, thereby being beneficial to driving the fixed segment 331 or the connecting segment 330 to recover the shape.

As a possible implementation manner, the height of the connecting section gradually decreases along the direction from the first end to the second end of the connecting section, and the height of the clamping cavity is smaller than or equal to the height of the first end of the connecting section. I.e. the height of the clamping cavity is smaller than or equal to the height of the connecting section at the first end position of the connecting section.

In the process that the corner connector enters the clamping cavity, the second end of the connecting section firstly enters the clamping cavity. At this moment, the minimum second end of height can play the guide effect, and guide linkage segment and with linkage segment elastic connection's quick entering clamping cavity of fixed section realize the equipment of angle sign indicating number and frame body. Further, because the height of the clamping cavity is smaller than or equal to the height of the first end of the connecting section, the first end of the connecting section can be abutted with the frame body in the height direction at the moment, so that the firmness of connection of the corner connector and the frame body is further improved.

As a possible implementation, referring to fig. 5 and 6, the distance between the connection section 330 and the corresponding fixed section 331 gradually increases in the direction from the second end to the first end of the connection section 330.

After the corner connector 2 enters the clamping cavity, the fixing section 331 beneficial to shape recovery is clamped with the groove part 32. Further, since the distance between the connecting section 330 and the corresponding fixed section 331 is gradually increased, the extruded fixed section 331 is beneficial to recovering the shape, and the probability of jamming in the process of recovering the shape of the fixed section 331 away from the connecting section 330 is reduced or avoided, so as to ensure the normal operation of the fixed section 331.

As a possible implementation, referring to fig. 7, the fixed section 331 may further include a protrusion 333, where the protrusion 333 protrudes from the fixed section 331 in a direction away from the connection section 330. The first end of the protruding portion 333 is connected to the fixed section 331, and the protruding portion 333 is located between the first end and the second end of the fixed section 331, the second end of the protruding portion 333 is clamped to the groove portion, and the protruding portion 333 extends from the first end of the fixed section 331 toward the second end of the fixed section 331.

Referring to fig. 7, in the actual use process, if the fixing section 331 is out of engagement with the groove portion, the protruding portion 333 may be engaged with the groove portion. That is, the protruding portion 333 engaged with the groove portion can be used as a spare member to ensure that the corner bracket 2 is normally connected with the frame body. Further, if the fixing section 331 is engaged with the groove, the second end of the protruding portion 333 is also engaged with the groove. At this time, the fixing section 331 and the protruding portion 333 may be used as two-stage protection, so as to improve the connection firmness between the corner connector and the frame body. For example, a rectangular protrusion may be punched on the original fixing section 331, and the number of protrusions 333 may be set according to the actual situation, which is not particularly limited herein. Further, in the embodiment of the present utility model, the above-described "the boss protrudes from the fixed section in the direction away from the connecting section" may be understood that the boss 333 is not located between the fixed section 331 and the connecting section 330. Further, an angle a is formed between a line from the first end to the second end of the protrusion 333 and a line from the first end to the second end of the fixed section 331, and the angle a is greater than or equal to 0 ° and less than 90 °. For example, the included angle may be 0 °, 30 °, 45 °, 80 °, etc.

As a possible implementation, referring to fig. 3 to 5, the blocking member 34 has a first receiving groove between the second side 311, and a second receiving groove 35 between the second side 311 and the first end 312. The connection section 330 is disposed between the first receiving groove and the second receiving groove 35 in a height direction of the connection section 330, and the first receiving groove and the second receiving groove 35 serve to define a distance between the connection section 330 and the first side 310.

Because of the hollow area between the connecting section 330 and the fixing section 331, when the corner connector is mounted in the clamping cavity 31, the connecting section 330 will not move towards the second side 311 but will tend to move towards the first side 310 under the blocking of the second side 311. In the embodiment of the present utility model, the distance between the connecting section 330 and the first side 310 can be defined by the first receiving groove and the second receiving groove 35, so that the connecting section 330 is prevented from moving toward the first side 310, that is, the corner bracket 2 is fixed along the width direction of the frame body. As can be seen from the foregoing description, the fixing section 331 and the groove portion 32 are engaged with each other and the connecting section 330 abuts against the second side surface, so that the corner bracket 2 can be fixed along the length direction of the frame body. In summary, the corner brace 2 according to the embodiment of the present utility model is fixed along the width and length directions of the frame body. Based on this, after the corner connector 2 is disposed in the clamping cavity 31, two adjacent frame bodies can be fastened and connected, so as to reduce or avoid the occurrence of a crack between two adjacent frame bodies when the frame bodies are under pressure from top to bottom.

Further, referring to fig. 10, there is also a corner connector in the prior art, which includes a first portion 4 and a second portion 5 that are symmetrically disposed, and the first portion 4 is described below as an example. The first portion 4 includes a first connecting section 40 and a second connecting section 41 which are arranged at intervals and connected, four elastic anti-falling pieces 42 are arranged on the first connecting section 40, and after the first portion 4 enters the short frame body, the elastic anti-falling pieces 42 are abutted with protrusions inside the short frame body so that the first portion 4 is connected with the short frame body. Since there is a gap between the first connection section 40 and the second connection section 41, when the elastic drop-off preventing member 42 abuts against the protrusion inside the short frame body, the first connection section 40 moves toward the second connection section 41 (i.e., moves in the first direction 7). Based on this, the transition 6 where the first part 4 and the second part 5 are connected will also move towards the second connection section 41, thereby causing the second part 5 to deform in the second direction 8. At this time, the second portion 5 is not aligned with the long frame body due to the deviation of the predetermined track, so that the second portion 5 of the corner connector is not easy to enter the long frame body, and meanwhile, the elastic anti-release member 42 of the second portion 5 cannot be abutted against the protrusion inside the long frame body, so that the corner connector cannot be connected with the long frame body.

However, in the embodiment of the present utility model, referring to fig. 3 to 9, since the stopper 34 is provided at the second end surface 313, the connection section 330 can be abutted with the second side surface 311 with the cooperation of the first accommodation groove and the second accommodation groove 35. For convenience of description, the corner piece 2 to be engaged with the long frame body 12 is defined as a first corner piece, and the corner piece 2 to be engaged with the short frame body 11 is defined as a second corner piece. After the second corner brace is clamped to the short frame body 11, the connection section 330 in the second corner brace will not move in a direction close to the first side 310 or in a direction far away from the first side 310 under the limitation of the first accommodation groove and the second accommodation groove 35, i.e. the connection section 330 will not deform. At this time, the connection section 330 of the second corner code can be prevented from driving the connection section 330 of the first corner code to move in a direction away from the first side surface 310, i.e. the first corner code is not driven to move in a direction away from the first side surface 310. Based on this, it can be ensured that the first angle is aligned with the clamping cavity 31 of the long frame body 12, so that the first angle smoothly enters the clamping cavity 31 of the long frame body 12. Because the connecting section 330 is elastically connected with the fixing section 331, after the first corner code enters the clamping cavity 31, the second end of the fixing section 331 can be smoothly clamped with the groove part 32, so as to ensure the connection firmness of the corner code 2 and the frame body. I.e. the distance of advancement of the second corner brace within the long bezel body 12 is not affected by the elastic deformation of the first corner brace.

In an alternative, referring to fig. 4, the spacing between the barrier 34 and the second side 311 is 0.5 mm to 2 mm. For example, it may be 0.5 mm, 0.9 mm, 1.2 mm, 1.6 mm, 2 mm, etc. At this time, the selectivity of the position of the blocking member 34 is increased, so that the frame can adapt to different application scenarios, and the application range of the frame is enlarged. Illustratively, the spacing may be adjusted according to the thickness of the connection section. Further, the shape, height, length, etc. of the above-mentioned blocking member 34 may be set according to actual conditions, and are not particularly limited herein. For example, the shape of the barrier 34 may be a triangular prism or a triangular pyramid, and the length of the barrier 34 may be 2 mm to 5 mm, for example, 2 mm, 3 mm, 3.6 mm, 5 mm, or the like. In addition, in the embodiment of the present utility model, a blocking member 34 is punched and formed at a position near the edge of the frame body.

In an alternative manner, referring to fig. 4, the first end surface 312 includes a curved surface, and the first end surface 312 and the second side surface 311 are connected by the curved surface. The curved surface is convenient to process, so that the manufacturing difficulty of the frame body can be reduced, and the working efficiency is improved. The bending width of the curved surface may be set according to actual conditions, and is not particularly limited herein.

As a possible implementation, see fig. 5, 6 and 11, in the actual manufacturing process, one metal plate 9 is bent 90 degrees along its central axis. At this time, two sides of the central axis are respectively provided with a half angle code, and the connecting bending part is a connecting section 330. Then, bending is performed again at a position of the connection section 330 to form the transition section 332, and at the same time, bending may be performed again at a position away from the transition section 332 to form the fixed section 331. The fixing section 331 and the connecting section 330 form a bending angle θ, which is greater than 0 ° and less than 90 °, for example, 1 °, 10 °, 20 °, 50 ° or 89 °. The thickness of the metal plate 9 may be 0.5 mm to 2 mm, for example, 0.5 mm, 0.9 mm, 1.2 mm, 1.6 mm, 2 mm, or the like. In the top view of the metal plate 9, the middle is rectangular, the two sides are symmetrically arranged trapezoids, and the width of the trapezoids gradually decreases along the direction away from the central axis.

In a second aspect, embodiments of the present utility model further provide a photovoltaic module. The photovoltaic module can comprise a laminated piece and a frame clamped at the periphery of the laminated piece, wherein the frame is the frame in the technical scheme.

The photovoltaic module provided by the embodiment of the utility model has the same beneficial effects as those of the frame in the technical scheme, and the description is omitted here.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A bezel, comprising:

the frame body comprises a clamping cavity extending along the length direction of the frame body; the clamping cavity comprises a first side face and a second side face which are opposite and arranged at intervals along the width direction of the frame body; the first side face is provided with a groove part along the length direction of the frame body; the clamping cavity comprises a first end face and a second end face which are opposite and arranged at intervals along the height direction of the frame body; the first end face, the first side face, the second end face and the second side face are sequentially connected and enclosed to form a closed clamping cavity; a blocking piece is arranged on the second end face;

the angle code comprises two connecting sections and two fixing sections, wherein the first ends of the two connecting sections are connected and are arranged in an L shape, and the second ends of the two connecting sections are respectively and elastically connected with the first ends of the two fixing sections positioned at the tail ends of the two connecting sections; the second end of the fixing section is clamped with the groove part, and the connecting section is abutted with the second side face and arranged between the second side face and the blocking piece.

2. The bezel of claim 1, wherein the corner bracket further comprises a transition section; the two ends of the transition section are respectively and elastically connected with the second end of the connecting section and the first end of the fixing section.

3. The bezel of claim 2, wherein the orthographic projection of the transition section on a horizontal plane is a circular arc section, and a central angle corresponding to the circular arc section is located between the connection section and the fixed section.

4. The bezel of claim 1, wherein the height of the connection section gradually decreases in a direction from the first end to the second end of the connection section;

the height of the clamping cavity is smaller than or equal to the height of the first end of the connecting section.

5. The bezel of claim 1, wherein a spacing between the connection section and the corresponding fixed section increases gradually in a direction from the second end to the first end of the connection section.

6. The bezel of claim 1, wherein the fixed section further comprises a boss protruding from the fixed section in a direction away from the connection section, a first end of the boss being connected to the fixed section and the boss being located between the first and second ends of the fixed section; the second end of the protruding part is clamped with the groove part; the boss extends from the first end of the fixed segment toward the second end of the fixed segment.

7. The bezel of claim 1, wherein the barrier has a first receiving slot between the barrier and the second side; a second accommodating groove is arranged between the second side surface and the first end surface; along the direction of height of the connecting section, the connecting section is arranged between the first accommodating groove and the second accommodating groove, and the first accommodating groove and the second accommodating groove are used for limiting the distance between the connecting section and the first side face.

8. The bezel of claim 7, wherein a spacing between the barrier and the second side is 0.5 millimeters to 2 millimeters.

9. The bezel of claim 7, wherein the first end surface comprises a curved surface, the first end surface and the second side surface being connected by the curved surface.

10. A photovoltaic module, comprising a laminate and a frame clamped at the periphery of the laminate; the bezel is the bezel of any one of claims 1 to 9.

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