CN220254440U - Corner connector and photovoltaic module - Google Patents

Abstract

The utility model discloses a corner connector 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 the corner connector is not firmly connected with a frame body. The angle sign indicating number is used for connecting two adjacent frame bodies, and this angle sign indicating number includes: the connecting section, the fixed section and the frame joint structure. The first ends of the two connecting sections are connected and are in L-shaped arrangement, the connecting ends of the two fixed sections are respectively elastically connected with the second ends of the two connecting sections, and the fixed sections are opposite to the connecting sections which are correspondingly connected and are arranged at intervals. The frame clamping structure is correspondingly arranged on each connecting section and is arranged at intervals with the fixing sections. The frame clamping structure is located between two connecting sections, and two frame clamping structures are connected, and frame clamping structure is used for limiting the angle between two connecting sections. The utility model also provides a photovoltaic module, which comprises the laminated piece and a frame, wherein the frame comprises a frame body and the corner connector.

Description

Corner connector and photovoltaic module

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a corner connector 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, the corner brace is generally formed by directly bending an aluminum material, and generally comprises a connecting section and a fixing section which are opposite and arranged at intervals. In the in-service use, connecting section and fixed section all with the inner wall butt of frame body.

However, when the photovoltaic module is loaded, the connecting section moves in a direction close to the fixed section, so that the connecting section deforms and even cracks occur. At this time, the phenomenon that the connection between the corner connector and the frame body is not firm 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 corner connector and a photovoltaic module, which are used for improving the connection firmness of the corner connector and a frame body so as to improve the quality of the photovoltaic module.

In order to achieve the above object, in a first aspect, the present utility model provides a corner brace for connecting two adjacent frame bodies. The corner connector comprises: the connecting section, the fixed section and the frame joint structure. The first ends of the two connecting sections are connected and are in L-shaped arrangement, the connecting ends of the two fixed sections are respectively elastically connected with the second ends of the two connecting sections, and the fixed sections are opposite to the connecting sections which are correspondingly connected and are arranged at intervals. The frame clamping structure is correspondingly arranged on each connecting section and is arranged at intervals with the fixing sections. The frame clamping structure is located between two connecting sections, and two frame clamping structures are connected, and frame clamping structure is used for limiting the angle between two connecting sections.

Compared with the prior art, in the corner connector provided by the utility model, the fixed sections are opposite to the connecting sections which are correspondingly connected and are arranged at intervals, and the corner connector is used for connecting two adjacent frame bodies. Therefore in the in-service use, fixed section and linkage segment can all with the inner wall butt of frame body, at this moment, utilize linkage segment and fixed section can make angle sign indicating number and frame body connection together fixed. Further, since the connecting ends of the two fixing sections are respectively and elastically connected with the second ends of the two connecting sections, at this time, in the process that the corner connector enters the inner cavity of the frame body, the distance between the fixing sections and the connecting sections is reduced, so that the corner connector can be penetrated into the inner cavity of the frame body. After the corner connector enters the inner cavity of the frame body, the fixing section or the connecting section restores the shape until the fixing section and the connecting section are both abutted with the inner wall of the frame body. Based on this, not only can make angle sign indicating number and frame body further fastening connection to ensure angle sign indicating number and frame body connection's fastness. Simultaneously, can also make the bight be applicable to the frame body of multiple different specifications, make bight adaptation different application scenario, enlarge its application scope. Still further, since the bezel clamping structure is located between the two connection segments, the two bezel clamping structures are connected, and the bezel clamping structure is used to define an angle between the two connection segments. At this time, not only can the structural strength of angle sign indicating number be strengthened to utilizing frame joint structure, can also reduce or avoid appearing simultaneously when photovoltaic module receives the load the condition that the connecting section moved to the direction that is close to the fixed section, and then reduce or eliminate the probability that the connecting section takes place deformation or fracture. Based on the structure, the firmness of connection of the corner connector and the frame body can be further improved, so that the quality of the photovoltaic module is improved.

In one implementation manner, a first included angle is formed between the frame clamping structure and the connecting section, and the first included angle is greater than or equal to 60 degrees and less than or equal to 90 degrees.

By adopting the technical scheme, the connection firmness of the two frame clamping structures can be ensured while the frame clamping structures and the connecting section are ensured to be firmly connected, so that the structural strength of the corner connector is enhanced, and the connection firmness of the corner connector and the frame body is further improved. Further, the selectivity of the first included angle is increased, so that the corner code can adapt to different application scenes, and the application range of the corner code is enlarged.

In one implementation, the frame clamping structure includes a protrusion and/or a groove, and the two frame clamping structures are clamped.

Under the condition of adopting the technical scheme, the connecting mode is simple and convenient, is easy to operate, and saves the assembly time. Further, compared with the prior art adopting the bonding mode, the method can reduce the pollution of substances such as adhesive and the like to the frame clamping structure and prolong the service life of the corner connector. Meanwhile, the probability of separation of the two frame clamping structures caused by material failure such as adhesive and the like along with the extension of the service time can be reduced, so that the firmness of the corner connector is ensured, and the quality of the photovoltaic module is further improved.

In one implementation, the frame clamping structure comprises a first section, a second section, a third section and a fourth section which are sequentially connected, wherein the first section and the third section are opposite and are arranged at intervals, the first section is arranged on the connecting section, the third section is arranged between the two connecting sections, and the second section is arranged between the fourth section and the fixing section.

Under the condition of adopting the technical scheme, the frame clamping structure is simple in structure, easy to manufacture, easy to assemble and use, and improves the working efficiency.

In one implementation, a second included angle is formed between the second section and the first section, and the second included angle is greater than or equal to 5 ° and less than or equal to 50 °.

Under the condition of adopting the technical scheme, because the second end of the connecting section first enters the frame body, at the moment, the position with the second included angle can play a guiding role, and the connecting section and the frame clamping structure are guided to quickly enter the frame body, so that the assembly efficiency is improved.

In one implementation, the length of the first section is 1/3 to 1/2 of the length of the corresponding connection section.

Under the condition of adopting the technical scheme, the frame clamping structure can reduce or avoid the movement of the fixed section to the direction close to the connecting section in the process that the corner brace enters the inner cavity of the frame body, so that the assembling speed of the corner brace and the frame body 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 connecting 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 frame body, and further ensure that the fixing section and the connecting section are both abutted to the inner wall of the frame body.

In one implementation, the height of the connection section gradually decreases in a direction from the first end to the second end of the connection section.

Under the condition of adopting the technical scheme, in the process that the corner connector enters the frame body, the second end of the connecting section firstly enters the frame body. At this moment, the minimum second end of height can play the guide effect, and inside the fixed section quick entering frame body of guide linkage segment and with linkage segment elastic connection, really improved packaging efficiency.

In one implementation, the distance between the fixed segment and the corresponding connected connecting segment gradually increases along the direction from the second end to the first end of the connecting segment.

Under the condition of adopting the technical scheme, after the corner connector enters the frame body, the fixing section beneficial to shape recovery is clamped with the inner wall of the frame body. Further, as the distance between the connecting section and the corresponding fixed section is gradually increased, the connecting end of the fixed section is elastically connected with the second end of the connecting section. At this time, the extruded fixed section is also facilitated to recover the shape, and the probability of being jammed 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 is ensured to work normally.

In a second aspect, the utility model further provides a photovoltaic module, which comprises a laminated piece and a frame. The frame includes frame body and the angle sign indicating number of above-mentioned technical scheme, and the frame body includes relative first inner wall and second inner wall, and the linkage segment is with first inner wall butt, fixed section and second inner wall butt.

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

In one implementation manner, two ends of the frame clamping structure are respectively abutted against the first inner wall and the second inner wall.

Under the condition of adopting the technical scheme, not only can the corner connector be further fastened and connected with the frame body, so as to ensure the firmness of the connection of the corner connector and the frame body. Meanwhile, the situation that the connecting section moves towards the direction close to the fixing section when the photovoltaic module is loaded can be further reduced or avoided, and the probability of deformation or cracking is further reduced or eliminated.

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 corner connector according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of the structure of FIG. 1 according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a metal plate according to an embodiment of the present utility model;

fig. 4 is an assembly schematic diagram of a corner brace and a frame body according to an embodiment of the utility model.

Reference numerals:

1-angle code, 10-connecting section, 100-end face,

11-fixed section, 110-line section, 12-frame clamping structure,

120-protrusions, 121-grooves, 122-first segments,

123-second section, 124-third section, 125-fourth section,

13-transition section, 2-frame body, 3-metal sheet.

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.

In order to solve the above technical problems, in a first aspect, an embodiment of the present utility model provides an angle brace for connecting two adjacent frame bodies. Referring to fig. 1, the corner key includes: the connecting section 10, the fixed section 11 and the frame clamping structure 12. The first ends of the two connecting sections 10 are connected and are in L-shaped arrangement, the connecting ends of the two fixing sections 11 are respectively and elastically connected with the second ends of the two connecting sections 10, and the fixing sections 11 are opposite to the connecting sections 10 which are correspondingly connected and are arranged at intervals. The frame clamping structure 12 is correspondingly arranged on each connecting section 10 and is arranged at intervals from the fixed sections 11. The frame clamping structure 12 is located between the two connecting sections 10, the two frame clamping structures 12 are connected, and the frame clamping structure 12 is used for limiting an angle between the two connecting sections 10.

Referring to fig. 1, the two connection sections 10 are perpendicular to each other. Further, each connecting section 10 has a trapezoidal shape, and a length L1 (for example, a length of a bottom of the trapezoid) thereof is greater than or equal to 30mm and less than or equal to 100mm. For example, the length L1 may be 30mm, 36mm, 45mm, 55mm, 68mm, 100mm, or the like.

Referring to fig. 1 to 4, in the corner connector provided in the embodiment of the present utility model, since the fixing section 11 is opposite to and spaced from the connecting section 10 correspondingly connected, the corner connector is used for connecting two adjacent frame bodies 2. Therefore, in the actual use process, the fixing section 11 and the connecting section 10 can be abutted against the inner wall of the frame body 2, and at this time, the corner connector 1 and the frame body 2 can be connected and fixed together by using the connecting section 10 and the fixing section 11. Further, since the connection ends of the two fixing sections 11 are respectively elastically connected with the second ends of the two connecting sections 10, at this time, in the process that the corner brace 1 enters the inner cavity of the frame body 2, the distance between the fixing sections 11 and the connecting sections 10 is reduced, so that the corner brace 1 stretches into the inner cavity of the frame body 2. After the corner connector 1 enters the inner cavity of the frame body 2, the fixing section 11 or the connecting section 10 recovers the shape until the fixing section 11 and the connecting section 10 are in butt joint with the inner wall of the frame body 2. Based on this, not only the corner brace and the frame body 2 can be further fastened and connected to ensure the connection firmness of the corner brace and the frame body 2. Simultaneously, can also make the angle sign indicating number be applicable to the frame body 2 of multiple different specifications, make the angle sign indicating number adapt to different application scenario, enlarge its application scope. Still further, since the frame clamping structure 12 is located between the two connection segments 10, the two frame clamping structures 12 are connected, and the frame clamping structure 12 is used to define an angle between the two connection segments 10. At this time, the frame clamping structure 12 can not only enhance the structural strength of the corner connector, but also reduce or avoid the situation that the connecting section 10 moves towards the direction close to the fixing section 11 when the photovoltaic module is loaded, so as to reduce or eliminate the probability of deformation or cracking of the connecting section 10. Based on this, can further improve the fastness that the angle sign indicating number is connected with frame body 2 to improve photovoltaic module's quality.

As one possible implementation, referring to fig. 1, the frame clamping structure 12 and the connection section 10 have a first included angle (not shown in fig. 1), where the first included angle is greater than or equal to 60 ° and less than or equal to 90 °. For example, the first included angle may be 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, 90 °, or the like.

At this time, the connection between the frame clamping structure 12 and the connecting section 10 can be ensured, and the connection between the two frame clamping structures 12 can be ensured, so that the strength of the corner connector 1 is enhanced, and the connection between the corner connector 1 and the frame body 2 is improved. Further, the selectivity of the first included angle is increased, so that the corner code 1 can adapt to different application scenes, and the application range of the corner code is enlarged.

The above two frame clamping structures are connected in various ways, and the following description is given by taking two possible cases as examples, and it should be understood that the following description is only for understanding, and is not intended to be limiting in detail.

Example one: the two frame clamping structures are welded together.

Example two: referring to fig. 1 to 3, the frame clamping structure 12 includes a protrusion 120 and/or a groove 121, and the two frame clamping structures 12 are clamped.

The connecting mode is simple and convenient, is easy to operate, and saves the assembly time. Further, compared with the prior art adopting the bonding mode, the pollution of substances such as adhesive and the like to the frame clamping structure 12 can be reduced, and the service life of the corner connector 1 is prolonged. Meanwhile, the probability of separation of the two frame clamping structures 12 caused by material failure such as adhesive along with the extension of the service time can be reduced, so that the firmness of the corner connector 1 is ensured, and the quality of the photovoltaic module is further improved.

For example, referring to fig. 1 to 3, one of the frame clamping structures 12 has a protrusion 120, and the other frame clamping structure 12 has a recess 121 that mates with the protrusion 120. The two frame clamping structures 12 are clamped through the protruding piece 120 and the groove 121. The number of the protruding members 120 (and/or the grooves 121) on one frame clamping structure 12 may be set according to practical situations, and is not limited herein.

As a possible implementation manner, referring to fig. 1 and 2, the frame clamping structure 12 includes a first segment 122, a second segment 123, a third segment 124, and a fourth segment 125 that are sequentially connected, where the first segment 122 and the third segment 124 are opposite and spaced, the first segment 122 is disposed on the connection segment 10, the third segment 124 is disposed between two connection segments 10, and the second segment 123 is disposed between the fourth segment 125 and the fixed segment 11. The frame clamping structure 12 is simple in structure, easy to manufacture, easy to assemble and use, and improves working efficiency.

For example, referring to fig. 1 and 2, after the two frame clamping structures 12 are connected, the two fourth segments 125 of the two frame clamping structures 12 abut together. Further, two frame clamping structures 12 are located at corners of the corner brace 1, and the frame clamping structures 12 are located at ends of the connecting section 10. That is, when the corner brace 1 abuts against the bezel body 2, the upper surface of the bezel clamping structure 12 abuts against the upper surface of the inner cavity of the bezel body 2. Still further, the length L2 of the third section 124 is greater than or equal to 1mm and less than or equal to 10mm. For example, the length L2 may be 1mm, 3mm, 5mm, 7mm, 8mm, 10mm, or the like.

In an alternative, referring to fig. 2, the second section 123 and the first section 122 have a second included angle a therebetween, where the second included angle is greater than or equal to 5 ° and less than or equal to 50 °. For example, the second included angle may be 5 °, 12 °, 15 °, 25 °, 33 °, 40 °, 46 °, 50 °, or the like.

Because the second end of the connecting section 10 is first in the frame body 2, at this time, the position with the second included angle can play a guiding role, and the connecting section 10 and the frame clamping structure 12 are guided to quickly enter the frame body 2, so that the assembly of the corner connector 1 and the frame body 2 is realized and the assembly efficiency is also improved.

In an alternative, referring to fig. 1 and 2, the length of the first section 122 is 1/3 to 1/2 of the length of the corresponding connecting section 10. For example, 1/3, 3/8, 5/12, 11/24, or 1/2, etc.

At this time, the frame clamping structure 12 can reduce or avoid the fixed section 11 from moving in a direction approaching to the connecting section 10 during the process of the corner bracket 1 entering the inner cavity of the frame body 2, so as to improve the assembling speed of the corner bracket 1 and the frame body 2.

As a possible implementation, referring to fig. 1, the aforementioned corner brace 1 may further include a transition section 13, and two ends of the transition section 13 are elastically connected to the second end of the connection section 10 and the connection end of the fixing section 11, respectively.

At this time, the transition section 13 can increase the deformation space between the fixing section 11 and the connecting section 10, and ensure the rebound resilience of the fixing section 11 or the connecting section 10. That is, the transition section 13 can further ensure that the fixing section 11 or the connecting section 10 can recover the shape after the corner connector 1 enters the frame body 2, and further ensure that the fixing section 11 and the connecting section 10 are both abutted against the inner wall of the frame body 2.

In an alternative, referring to fig. 1, the orthographic projection of the transition section 13 on the horizontal plane is an arc section, the central angle corresponding to which is located between the connecting section 10 and the fixed section 11.

Referring to fig. 1, the transition section 13 is also bent during entry of the corner brace 1 into the bezel body 2. Because the central angle corresponding to the circular arc section is located between the connecting section 10 and the fixed section 11, compared with the situation that the central angle deviates from the connecting section 10 and the fixed section 11, the transition section 13 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 section 11 or the connecting section 10 to recover the shape.

As a possible implementation, referring to fig. 1 and 3, the height of the connection section 10 gradually decreases along the direction from the first end to the second end of the connection section 10. And/or, the distance between the fixing segment 11 and the corresponding connected connecting segment 10 gradually increases along the direction from the second end to the first end of the connecting segment 10.

The height of the connection section 10 gradually decreases due to the direction from the first end to the second end of the connection section 10. In the process that the corner connector 1 enters the frame body 2, the second end of the connecting section 10 is first positioned in the frame body 2. At this time, the second end with the minimum height can play a guiding role, guide the connecting section 10 and the fixed section 11 elastically connected with the connecting section 10 to quickly enter the frame body 2, so that the assembly of the corner connector 1 and the frame body 2 is realized and the assembly efficiency is also improved.

In an alternative, referring to fig. 1 to 4, the height H1 of the inner cavity of the bezel body 2 is greater than or equal to the height H2 of the first end of the connection section 10. In the embodiment of the utility model, the height H1 of the inner cavity of the frame body 2 is equal to the height H2 of the first end of the connecting section 10, and at this time, the first end of the connecting section 10 can be abutted against the frame body 2 in the height direction, so as to further improve the connection firmness between the corner connector 1 and the frame body 2.

The distance between the fixing segment 11 and the corresponding connected connection segment 10 gradually increases due to the direction from the second end to the first end of the connection segment 10. After the corner connector 1 enters the frame body 2, the fixing section 11 beneficial to shape recovery is clamped with the inner wall of the frame body 2. Further, since the interval between the connection section 10 and the corresponding fixing section 11 is gradually increased, the connection end of the fixing section is elastically connected with the second end of the connection section. At this time, the extruded fixing segment 11 is also facilitated to recover the shape, and the probability of jamming in the process of recovering the shape of the fixing segment 11 away from the connecting segment 10 is reduced or avoided, so as to ensure that the fixing segment 11 works normally.

In an alternative way, referring to fig. 1 to 4, the vertical distance M between the fixed segment 11 and the corresponding connecting segment 10 is greater than or equal to the width W of the inner cavity of the bezel body 2. In the embodiment of the present utility model, it is understood that the perpendicular distance from the line segment 110 where the free end of the fixed segment 11 is located to the end face 100 of the connecting segment 10 is M, i.e., the perpendicular distance from the straight line to the face. It should be understood that this description is for explanation of the vertical distance M only.

As a possible implementation, referring to fig. 1 to 3, in the actual manufacturing process, one metal plate 3 is bent by 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 10. Then, bending is performed again at a certain position of the connection section 10 to form the transition section 13, and at the same time, bending can be performed again at a position distant from the transition section 13 to form the fixing section 11. The fixing section 11 and the connecting section 10 form a bending angle B, where B is greater than or equal to 45 ° and less than 90 °, for example, 45 °, 50 °, 75 °, 80 ° or 89 °.

As one possible implementation, the thickness of the metal plate is greater than or equal to 0.5 mm and less than or equal to 2 mm. For example, the thickness of the metal plate may be 0.5 mm, 0.9 mm, 1.2 mm, 1.6 mm, 2 mm, or the like.

In summary, referring to fig. 1 to 4, after the corner brace 1 is assembled with the frame body 2, along the height direction of the connecting section 10, the connecting section 10 abuts against the upper and lower inner walls of the inner cavity of the frame body 2. The connecting section 10 and the fixing section 11 are both abutted against the left and right inner walls of the frame body 2, and the first section 122 and the third section 124 of the frame clamping structure 12 are respectively abutted against the left and right inner walls of the frame body 2 opposite to each other. At this time, not only the pulling-out force along the length direction of the frame body 2 can be resisted, but also the situation that the connecting section 10 moves in the direction approaching the fixing section 11 when the photovoltaic module is loaded can be reduced or avoided, and the probability of deformation or cracking of the connecting section 10 is further reduced or eliminated. Based on this, can further improve the fastness that angle sign indicating number 1 and frame body 2 are connected to improve the fastness that two adjacent frame bodies 2 are connected, and then improve photovoltaic module's quality.

In a second aspect, referring to fig. 1 to 4, embodiments of the present utility model further provide a photovoltaic module including a laminate and a frame. The frame comprises a frame body 2 and the corner connector 1 according to the technical scheme, wherein the frame body comprises a first inner wall and a second inner wall which are opposite, the connecting section is abutted with the first inner wall, and the fixing section is abutted with the second inner wall.

The beneficial effects of the photovoltaic module provided by the embodiment of the utility model are the same as those of the corner connector according to the technical scheme, and are not repeated here. Illustratively, the first inner wall and the second inner wall are distributed along a width direction (i.e., a W direction) of the inner cavity of the frame body.

As a possible implementation manner, two ends of the frame clamping structure are respectively abutted against the first inner wall and the second inner wall. That is, the first section 122 and the third section 124 of the frame clamping structure 12 are respectively abutted against the first inner wall and the second inner wall, and the frame clamping structure 12 is used for supporting the frame body 2 in the horizontal direction.

At this time, not only the corner connector 1 and the frame body 2 can be further fastened and connected, so as to ensure the connection firmness of the corner connector 1 and the frame body 2. Meanwhile, the situation that the connecting section 10 moves towards the direction close to the fixing section 11 when the photovoltaic module is loaded can be further reduced or avoided, and the probability of deformation or cracking is further reduced or eliminated.

Illustratively, the width W of the inner cavity of the bezel body 2 is less than or equal to the vertical distance D between the first segment 122 and the third segment 124.

As one possible implementation manner, the materials of the frame body and the corner bracket are consistent and are all steel.

At this time, can reduce the mutual influence between the different materials, avoid angle sign indicating number or frame body to be corroded, improve the life of steel angle sign indicating number and steel frame body, and then improve photovoltaic module's quality. Further, compared with the case of manufacturing the corner connector by adopting aluminum materials in the prior art, the strength and the quality of the steel corner connector are better than those of the aluminum corner connector under the condition that the consumption of raw materials (namely aluminum or steel) is the same. Still further, in order to overcome the problem that the yield strength of aluminum is low, the structural strength of aluminum corner connector is not in accordance with the actual requirement in the prior art, the usage amount of aluminum is generally greatly increased for a single corner connector. However, according to the steel corner brace provided by the embodiment of the utility model, the yield strength of the steel is greater than that of the aluminum material, and the unit price of the steel is lower than that of the aluminum material. Therefore, compared with an aluminum corner connector, the steel corner connector provided by the embodiment of the utility model has lower cost. In addition, the bearing capacity of the steel corner connector is better than that of the aluminum corner connector. In addition, the aluminum corner connector in the prior art is usually manufactured by adopting a casting process, and the corner connector in the embodiment of the utility model is formed by bending a profile. Therefore, compared with the prior art, the corner connector provided by the embodiment of the utility model has the advantages of simple manufacturing process and low cost.

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 corner brace for connecting two adjacent frame bodies, the corner brace comprising:

the first ends of the two connecting sections are connected and are arranged in an L shape;

the connecting ends of the two fixing sections are respectively and elastically connected with the second ends of the two connecting sections; the fixed sections are opposite to the connecting sections which are correspondingly connected and are arranged at intervals;

the frame clamping structure is correspondingly arranged on each connecting section and is arranged at intervals with the fixed sections; the frame clamping structure is positioned between the two connecting sections, and the two frame clamping structures are connected; the frame clamping structure is used for limiting an angle between the two connecting sections.

2. The corner brace of claim 1, wherein the bezel-engaging structure has a first included angle with the connection section that is greater than or equal to 60 ° and less than or equal to 90 °.

3. The corner brace of claim 1, wherein the bezel-engaging structures comprise protrusions and/or grooves, and wherein two bezel-engaging structures engage.

4. The corner brace of claim 1, wherein the bezel-engaging structure comprises a first segment, a second segment, a third segment, and a fourth segment connected in sequence, the first segment and the third segment being opposite and spaced apart, the first segment being disposed in the connecting segment, the third segment being disposed between two of the connecting segments, the second segment being disposed between the fourth segment and the fixed segment.

5. The corner piece of claim 4, wherein the second segment has a second included angle with the first segment, the second included angle being greater than or equal to 5 ° and less than or equal to 50 °.

6. The corner brace of claim 4 or 5, wherein the length of the first segment is 1/3 to 1/2 of the length of the corresponding connecting segment.

7. The corner piece of claim 1, further comprising 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 connecting end of the fixing section.

8. The corner brace of claim 1, wherein the height of the connecting section decreases in a direction from the first end to the second end of the connecting section; and/or the number of the groups of groups,

and the distance between the fixed section and the connecting section correspondingly connected is gradually increased along the direction from the second end to the first end of the connecting section.

9. A photovoltaic module comprising a laminate and a frame; the bezel comprises a bezel body and a corner key as defined in any one of claims 1 to 8;

the frame body comprises a first inner wall and a second inner wall which are opposite; the connecting section is abutted with the first inner wall, and the fixing section is abutted with the second inner wall.

10. The photovoltaic module of claim 9, wherein two ends of the frame clamping structure are respectively abutted to the first inner wall and the second inner wall.