CN217508687U

CN217508687U - Packaging frame and photovoltaic module thereof

Info

Publication number: CN217508687U
Application number: CN202221638336.7U
Authority: CN
Inventors: 应建飞; 俞利理; 徐立元; 陈跃辉; 魏海源; 杨晨
Original assignee: Dongfang Risheng Ningbo New Material Co ltd
Current assignee: Dongfang Risheng Ningbo New Material Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-27
Anticipated expiration: 2032-06-27

Abstract

The invention discloses a packaging frame and a photovoltaic assembly thereof, which are provided with a first supporting wall, a second supporting wall, an angle code cavity, an opening and at least one limiting part, wherein the angle code cavity is formed between the first supporting wall and the second supporting wall, the opening is communicated with the angle code cavity and the outside, and the limiting part obliquely extends into the angle code cavity from the first supporting wall and/or the second supporting wall so that the limiting part is clamped in a sawtooth part of an angle code. Thereby through offering a plurality of spacing portions in the inboard of encapsulation frame, effectively strengthen the tensile strength between encapsulation frame and the angle sign indicating number, increase connection stability, prevent that the phenomenon of pine from taking off from taking place.

Description

Packaging frame and photovoltaic module thereof

Technical Field

The invention relates to the technical field of solar photovoltaics, in particular to a packaging frame for a photovoltaic module and the photovoltaic module.

Background

At present in order to increase photovoltaic module's compressive strength and sealed battery pack, solar cell panel installs in frame subassembly, dress frame generally adopts length metal section bar frame, encapsulation such as angle sign indicating number, the angle sign indicating number is L type structure mostly, during the subassembly assembly, insert short frame section bar intracavity with one side of angle sign indicating number, insert long frame type intracavity with the opposite side of angle sign indicating number, play the effect of connecting length encapsulation frame, through with the angle sign indicating number with long, short frame section bar hookup becomes integrative, accomplish the encapsulation of subassembly, however, the connection stability of present length frame and angle sign indicating number is relatively poor, the phenomenon of taking place the pine to take off easily.

Disclosure of Invention

The invention aims to provide a packaging frame and a photovoltaic module, which overcome the defects of the prior art, and effectively enhance the tensile strength between the packaging frame and a corner connector, increase the connection stability and prevent the loosening phenomenon by arranging a plurality of limiting parts on the inner side of the packaging frame.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

according to the first aspect of this application, a encapsulation frame is equipped with first support wall, second support wall, angle sign indicating number chamber, opening and an at least spacing portion, the angle sign indicating number chamber form in first support wall with between the second support wall, the opening intercommunication angle sign indicating number chamber and external world, spacing portion is followed first support wall and/or second support wall slope ground to extend in the angle sign indicating number intracavity, make spacing portion joint is in the sawtooth portion of angle sign indicating number.

Preferably, the package frame is further provided with at least one notch, the limiting portion integrally extends obliquely and downwardly from the first support wall to form the notch, and the notch is opened on the surface of the first support wall.

Preferably, the limiting portion extends obliquely from the first supporting wall at one end of the notch to the corner brace cavity, the limiting portion and the first supporting wall are connected at an obtuse angle, and a free end of the limiting portion extends in a direction deviating from the opening and abuts against the serration portion of the corner brace.

Preferably, the limiting portion extends from the first support walls at two ends of the notch to the corner brace cavity, the limiting portion is provided with a first limiting edge and a second limiting edge, the first limiting edge and the second limiting edge are respectively connected with the first support walls at two ends of the notch in an inclined manner, and the inclination of the first limiting edge is the same as or different from the inclination of the second limiting edge.

Preferably, the inclination of the first limiting edge is greater than that of the second limiting edge, and the first limiting edge is close to the opening relative to the second limiting edge, so that the second limiting edge abuts against the vertical surface of the sawtooth part.

Preferably, the first support wall and the second support wall are of a single-layer profile structure, the packaging frame is formed by bending steel, the first support wall is at least provided with a pair of limiting parts, the limiting parts are arranged at intervals along the longitudinal direction and/or the transverse direction, the cross sections of the limiting parts are of a trapezoidal, arc-shaped, triangular or rectangular structure, and when the limiting parts are multiple, the limiting parts are arranged in a matrix arrangement mode of M x N (M is more than or equal to 1, and N is more than or equal to 1), or the whole arrangement of the limiting parts is arranged in a trapezoidal or triangular mode.

According to the first aspect of this application, a photovoltaic module includes above-mentioned a plurality of encapsulation frames, a plurality of angle sign indicating number and photovoltaic board subassembly, the encapsulation frame includes A face, B face and C face, A face with B face interconnect encloses to be located the centre gripping chamber on encapsulation frame upper portion, through the edge that photovoltaic board subassembly was held to the centre gripping chamber, B face with interconnect between the C face encloses to be located the encapsulation frame lower part the angle sign indicating number chamber, the angle sign indicating number is equipped with a pair of connecting portion and a pair of sawtooth part, the angle sign indicating number passes the opening joint in angle sign indicating number chamber, sawtooth part convexly form in the surface of connecting portion, each connecting portion are adjacent to both sides respectively the angle sign indicating number chamber in the encapsulation frame extends, makes spacing portion joint in sawtooth part.

Preferably, the photovoltaic panel assembly comprises a light-transmitting front panel, a packaging adhesive film, a photovoltaic cell piece, a conductive piece and a back panel, the first supporting wall is adjacent to the photovoltaic panel assembly, the limiting part integrally extends from the first supporting wall to the corner code cavity, and the packaging frame is integrally bent and formed through a cold rolling process.

Preferably, the limiting part is provided with a free end, the free end is located in the sawtooth part of the corner connector, and the depth of the free end is 0.1 mm-1 mm.

Preferably, each tooth of the sawtooth part is provided with a vertical surface and an inclined surface, the inclined surface is arranged at an acute angle relative to a straight line where the extending direction of the connecting part is located, the vertical surface is perpendicular to the straight line where the extending direction of the connecting part is located, and the free end of the limiting part is located between the teeth of the corner code sawtooth part or abutted against the vertical surface.

Drawings

Fig. 1 is a schematic structural diagram of a package frame according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a photovoltaic module according to an embodiment of the present application;

fig. 3 is a top view of a photovoltaic module according to an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a package frame and corner connector according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a package frame and corner connectors according to another variant embodiment of the present application;

fig. 6 is a schematic structural diagram of a package frame and corner connectors according to another variant embodiment of the present application.

In the figure: 1. surface A; 2. surface B; 3. c surface; 4. a photovoltaic module; 110. a clamping cavity; 10. packaging the frame; 11. a first support wall; 12. a second support wall; 13. a corner cavity; 14. a limiting part; 141. a free end; 142. a first limit edge; 143. a second limit edge; 15. a notch; 16. an opening; 20. corner connectors; 21. a connecting portion; 22. a serration; 221. a vertical plane; 222. a bevel; 200. photovoltaic panel assembly.

Detailed Description

The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It is noted that, as used in this application, the terms "substantially," "about," and the like are used as terms of table approximation and not as terms of table degree, and are intended to account for inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art.

As shown in fig. 1, the package frame 10 has a first supporting wall 11, a second supporting wall 12, a corner joint cavity 13, an opening 16, and at least one limiting portion 14, where the corner joint cavity 13 is formed between the first supporting wall 11 and the second supporting wall 12, the limiting portion 14 extends from the first supporting wall 11 and/or the second supporting wall 12 to the corner joint cavity 13 in an inclined manner, and the opening 16 communicates the corner joint cavity 13 with the outside, so that the limiting portion 14 is clamped in a sawtooth portion 22 of the corner joint 20. Therefore, the plurality of limiting parts 14 are arranged on the inner side of the packaging frame 10, so that the tensile strength between the packaging frame 10 and the corner connector 20 is effectively enhanced, the connection stability is improved, and the phenomenon of loosening is prevented.

The packaging frame 10 comprises an a surface 1, a B surface 2 and a C surface 3, wherein the a surface 1, the B surface 2 and the C surface 3 are formed by bending metal plates/metal strips, the a surface 1 and the B surface 2 are connected with each other and enclose a clamping cavity 110 located at the upper part of the packaging frame 10, the edge of the photovoltaic panel assembly 200 is accommodated through the clamping cavity 110, and meanwhile, the long side and the short side of the photovoltaic panel assembly 200 are accommodated through the clamping cavities 110 on the long packaging frame 10 and the short packaging frame 10 respectively; the surface B2 and the surface C3 are connected to each other and enclose the corner connector cavity 13 located at the lower portion of the package frame 10.

In some embodiments, the corner brace cavity 13 is formed by a single-layer profile, that is, the first support wall 11 and the second support wall 12 are of a single-layer profile structure, an end of the a surface 1 away from the B surface 2 is bent towards the inside of the clamping cavity 110, a bent portion is a three-layer or four-layer profile, an end of the C surface 3 away from the B surface 2 is bent towards the outside of the corner brace cavity 13, and a bent portion is a four-layer or five-layer profile. The frame 10 is thus produced from a metal sheet/strip by a cold rolling process involving rolling, die pressing and rolling.

As shown in fig. 2 to 3, a photovoltaic module 4 includes a plurality of package frames 10, a plurality of corner connectors 20, and a photovoltaic panel assembly 200, the package frame 10 has the clamping cavity 110 and the corner connector cavity 13, the edge of the photovoltaic panel assembly 200 is received by the clamping cavity 110, the corner connector 20 has a pair of connecting portions 21 and a pair of serrations 22, the corner connector 20 passes through the opening 16 and is connected to the corner connector cavity 13, the serrations 22 are convexly formed on the surface of the connecting portions 21, each connecting portion 21 extends to the corner connector cavity 13 of the package frame 10 adjacent to both sides, the serrations 22 face the first support wall 11 and/or the second support wall 12, and the stoppers 14 are clamped in the serrations 22, wherein the photovoltaic panel assembly 200 is generally formed by a transparent front plate, a package adhesive film, a photovoltaic cell sheet, a transparent glass, The conductive component and the back plate are made of glass or high polymer materials.

In some embodiments, the first supporting wall 11 is adjacent to the photovoltaic panel assembly 200, and the position-limiting portion 14 integrally extends from the first supporting wall 11 to the corner cavity 13, without affecting the appearance of the package frame 10, as shown in fig. 4, and the position-limiting portion 14 may also be disposed on the second supporting wall 12 as needed.

In some embodiments, the package frame 10 is formed by bending a steel material.

In some embodiments, the corner brace 20 has an L-shaped structure, two connecting portions 21 are disposed at substantially right angles, and each connecting portion 21 has a protruding serration 22 formed thereon.

In some embodiments, each package frame 10 is further provided with at least one notch 15, the limiting portion 14 integrally extends from the first supporting wall 11 obliquely downward to form the notch 15, the notches 15 are opened on the surface of the first supporting wall 11, and the number of the notches 15 is the same as the number of the limiting portions 14, so that the limiting portion 14 is formed by stamping, the structure is simple, and the manufacturing cost is reduced.

In some embodiments, the position-limiting portion 14 is provided with a free end 141, the free end 141 is located in the sawtooth portion 22 of the corner brace 20, and the depth of the free end 141, i.e., the buckling depth of the position-limiting portion 14 and the sawtooth portion 22, is substantially 0.1mm to 1mm, so that a tensile strength of not less than 180N is provided between the package frame 10 and the corner brace 20.

In some embodiments, the depth of the free end 141, i.e., the depth of the engagement between the retaining portion 14 and the serration 22, may be substantially 0.1mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.8mm, 0.9mm, 1 mm. The depth of the free end 141 can be adjusted as desired, without limitation.

In some embodiments, the cross section of the limiting portion 14 is a rectangular structure, the limiting portion 14 extends obliquely from the first supporting wall 11 at one end of the notch 15 to the corner brace cavity 13, the limiting portion 14 and the first supporting wall 11 are connected at an obtuse angle, and the free end 141 of the limiting portion 14 extends in a direction deviating from the opening 16 and abuts against the serration portion 22 of the corner brace 20, as shown in fig. 1. Therefore, the limiting portion 14 elastically abuts against the serrated portion 22, so as to effectively prevent the package frame 10 from falling off, and when the package frame 10 moves in a direction away from the corner connector 20, the elastic resistance between the limiting portion 14 and the serrated portion 22 is increased, so as to effectively prevent the package frame 10 from loosening.

In some embodiments, the cross section of the limiting portion 14 is a trapezoid, an arc, a triangle, or the like, and the structural form thereof is various, and it is not limited herein, and it can be designed as required, the limiting portion 14 extends from the first supporting walls 11 at the two ends of the notch 15 to the inside of the corner code cavity 13, the limiting portion 14 is provided with a first limiting edge 142 and a second limiting edge 143, the first limiting edge 142 and the second limiting edge 143 are respectively connected to the first supporting walls 11 at the two ends of the notch 15 in an inclined manner, the free end 141 of the limiting portion 14 is located between the teeth of the serration portion 22, and the inclination of the first limiting edge 142 is substantially the same as that of the second limiting edge 143, as shown in fig. 5. Therefore, the limiting portion 14 is clamped in the sawtooth portion 22, so that the package frame 10 is effectively prevented from falling off, and when the package frame 10 moves in a direction away from the corner brace 20, the resistance between the limiting portion 14 and the sawtooth portion 22 effectively prevents the package frame 10 from falling off, so that the connection stability between the package frame 10 and the corner brace 20 is enhanced.

In some embodiments, the cross section of the position-limiting portion 14 has a trapezoidal structure, which helps to increase the tensile strength of the position-limiting portion 14 and prevent deformation, and maintains the structural stability of the position-limiting portion 14.

In some embodiments, each tooth of the serrated portion 22 is provided with a vertical surface 221 and an inclined surface 222, the inclined surface 222 is disposed at an acute angle with respect to a line along which the connecting portion 21 extends, and the vertical surface 221 is perpendicular to the line along which the connecting portion 21 extends.

In some embodiments, the inclination of the first limiting edge 142 is greater than that of the second limiting edge 143, so that the second limiting edge 143 abuts against the vertical surface 221 of the sawtooth portion 22, as shown in fig. 6, the second limiting edge 143 abuts against the vertical surface 221, thereby effectively preventing the package frame 10 from being loosened, and improving the connection stability between the package frame 10 and the corner brace 20.

In some embodiments, the first supporting wall 11 is provided with at least a pair of limiting portions 14, and the limiting portions 14 are disposed at intervals along a longitudinal direction and/or a transverse direction, so as to increase the tensile strength between the package frame 10 and the corner brace 20.

In some embodiments, the number of the position limiting portions 14 is 4, and the arrangement of the plurality of position limiting portions 14 may be a one-dimensional linear arrangement or a two-dimensional planar arrangement. When the arrangement of the plurality of position limiting portions 14 is a two-dimensional arrangement, the arrangement of the position limiting portions 14 may be regular or irregular. Preferably, the arrangement of the limiting parts 14 can be a matrix arrangement of M N (M is more than or equal to 1, N is more than or equal to 1); or the whole arrangement of the limiting parts 14 can be in a trapezoidal or triangular arrangement.

The foregoing has described the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a packaging frame, its characterized in that is equipped with first support wall, second support wall, angle sign indicating number chamber, opening and at least one spacing portion, the angle sign indicating number chamber form in first support wall with between the second support wall, the opening intercommunication angle sign indicating number chamber and external world, spacing portion is followed first support wall and/or second support wall slope ground to extend in the angle sign indicating number intracavity, make spacing portion joint is in the sawtooth portion of angle sign indicating number.

2. The package frame as claimed in claim 1, further comprising at least one notch, wherein the limiting portion integrally extends from the first supporting wall obliquely downward to form the notch, and the notch opens on the surface of the first supporting wall.

3. The frame of claim 2, wherein the limiting portion extends obliquely from the first supporting wall at one end of the notch to the corner brace cavity, the limiting portion and the first supporting wall are connected at an obtuse angle, and a free end of the limiting portion extends in a direction deviating from the opening and abuts against a serration portion of the corner brace.

4. The package frame according to claim 2, wherein the limiting portion extends from the first support walls at two ends of the notch to the corner brace cavity, the limiting portion has a first limiting edge and a second limiting edge, the first limiting edge and the second limiting edge are respectively connected to the first support walls at two ends of the notch in an inclined manner, and an inclination of the first limiting edge is the same as or different from an inclination of the second limiting edge.

5. The package frame according to claim 4, wherein the first position-limiting edge has a greater inclination than the second position-limiting edge, and the first position-limiting edge is closer to the opening than the second position-limiting edge, so that the second position-limiting edge abuts against the vertical surface of the sawtooth portion.

6. The package frame according to any one of claims 1 to 5, wherein the first support wall and the second support wall are of a single-layer profile structure, the package frame is formed by bending steel, the first support wall is provided with at least one pair of limiting portions, the limiting portions are longitudinally and/or transversely arranged at intervals, the cross sections of the limiting portions are of a trapezoidal, arc, triangular or rectangular structure, and when the limiting portions are multiple, the limiting portions are arranged in a matrix arrangement of M x N (M is greater than or equal to 1, and N is greater than or equal to 1), or the whole arrangement of the limiting portions is in a trapezoidal or triangular arrangement.

7. A photovoltaic module, comprising the packaging frame as claimed in any one of claims 1 to 6, a plurality of corner connectors and a photovoltaic panel assembly, wherein the packaging frame comprises an A surface, a B surface and a C surface, the A surface and the B surface are connected with each other and enclose a clamping cavity located at the upper part of the packaging frame, the edge of the photovoltaic panel assembly is accommodated by the clamping cavity, the B surface and the C surface are connected with each other and enclose a corner connector cavity located at the lower part of the packaging frame, the corner connector is provided with a pair of connecting parts and a pair of sawtooth parts, the corner connectors pass through the openings and are connected to the corner connector cavities, the sawtooth parts are convexly formed on the surfaces of the connecting parts, and each connecting part extends to the corner connector cavities in the packaging frame adjacent to two sides respectively, so that the limiting parts are connected to the sawtooth parts in a clamping manner.

8. The photovoltaic module according to claim 7, wherein the photovoltaic panel assembly is composed of a light-transmitting front panel, a packaging adhesive film, a photovoltaic cell sheet, a conductive member and a back panel, the first supporting wall is adjacent to the photovoltaic panel assembly, the limiting portion integrally extends from the first supporting wall to the corner cavity, and the packaging frame is integrally bent and formed through a cold rolling process.

9. The photovoltaic module according to claim 7, wherein the limiting portion is provided with a free end, the free end is located in the sawtooth portion of the corner connector, and the depth of the free end is 0.1 mm-1 mm.

10. The photovoltaic module of claim 7, wherein each tooth of the serration has a vertical surface and an inclined surface, the inclined surface is disposed at an acute angle with respect to a straight line along which the connecting portion extends, the vertical surface is perpendicular to the straight line along which the connecting portion extends, and the free end of the limiting portion is located between the teeth of the corner-code serration or abuts against the vertical surface.