CN216528914U

CN216528914U - Photovoltaic module

Info

Publication number: CN216528914U
Application number: CN202122925644.XU
Authority: CN
Inventors: 吴国辉; 刘艳丽; 骆阳; 王占林
Original assignee: Beijing Jingao Energy Technology Co ltd
Current assignee: Beijing Jingao Energy Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-13
Anticipated expiration: 2031-11-26

Abstract

The present disclosure provides a photovoltaic module. This photovoltaic module includes: a photovoltaic panel; a support member connected to the back side of the photovoltaic panel; the fireproof back plate is arranged on one side, back to the photovoltaic panel, of the support piece and connected with the support piece; and the fireproof heat insulation body is filled between the photovoltaic panel and the fireproof back panel. Based on the supporting piece, the photovoltaic module has excellent stress performance and is beneficial to being applied to photovoltaic building integration.

Description

Photovoltaic module

Technical Field

The present disclosure relates to a photovoltaic module.

Background

Photovoltaic module is a module that can convert solar energy into electrical energy, and the electrical energy that produces can be used by consumers or carry the electrical energy to the electric wire netting. The Photovoltaic device can be applied to a Building Integrated Photovoltaic (BIPV) technology, and the BIPV technology is widely applied due to the advantages of meeting Building aesthetic requirements, reducing occupied land resources, realizing Building energy conservation, reducing Building temperature rise and the like.

In the related art, a photovoltaic module is installed on a roof or other buildings, and the photovoltaic module includes a photovoltaic panel and a fire-resistant insulating layer provided on the back surface of the photovoltaic panel, but the stress performance of the photovoltaic module is poor.

Disclosure of Invention

The utility model provides an effectual photovoltaic module of atress.

One aspect of the present disclosure provides a photovoltaic module, comprising:

a photovoltaic panel;

a support member connected to the back side of the photovoltaic panel;

the fireproof back plate is arranged on one side, back to the photovoltaic panel, of the supporting piece and connected with the supporting piece; and

and the fireproof heat insulation body is filled between the photovoltaic panel and the fireproof back panel.

Optionally, the number of the supporting members is at least two, and the supporting members are arranged in a dispersed manner.

Optionally, the support member is a hollow elongate structure.

Optionally, the support member extends parallel to one edge of the photovoltaic panel.

Optionally, the support member is an inverted triangular truss, a bottom surface of the triangular truss is connected with a back surface of the photovoltaic panel, and a top angle of the triangular truss is connected with the fire-resistant back plate.

Optionally, the top angle of the triangular truss is connected to the fire-resistant back plate through a plate-shaped connecting piece, and the plate surface of the plate-shaped connecting piece is parallel to the plate surface of the fire-resistant back plate.

Optionally, the section along the direction perpendicular to the axis of the triangular truss is in an isosceles triangle structure; and/or

The bottom surface and the two side surfaces of the triangular truss are respectively provided with a plurality of hollowed-out triangles.

Optionally, at least a portion of the refractory insulation is filled within the support.

Optionally, the photovoltaic panel includes a first edge and a second edge opposite to each other, the photovoltaic module further includes a first frame and a second frame respectively assembled to the first edge and the second edge, the first frame is provided with a first built-in cavity, the second frame is provided with a second built-in cavity, and at least one of the first built-in cavity and the second built-in cavity accommodates a junction box.

Optionally, the fire-resistant back plate is connected to the bottom of the first frame and the bottom of the second frame.

The technical scheme provided by the disclosure at least has the following beneficial effects:

the photovoltaic module that this disclosure provided, based on fill fire-resistant heat retainer between photovoltaic module and the fire-resistant backplate, this makes this photovoltaic module have excellent thermal insulation performance, and fire-resistant heat retainer and fire-resistant backplate cooperation make this photovoltaic module have excellent fire resistance performance moreover. Based on support piece and photovoltaic board's back connection and be connected with fire-resistant backplate, also be that support piece locates between photovoltaic board and the fire-resistant backplate, this makes this photovoltaic module have excellent atress performance, does benefit to and is applied to in the photovoltaic building integration.

Drawings

Fig. 1 is a schematic view illustrating a partial structure of a back surface of a photovoltaic module according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view taken along line C-C of FIG. 1;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

fig. 4 is a schematic structural view of the triangular truss according to an embodiment of the present disclosure after being cut along an axial direction of the triangular truss;

fig. 5 is a schematic partial structural view of a triangular truss provided in an embodiment of the present disclosure along a first direction;

fig. 6 is a partial structural view of a triangular truss provided in an embodiment of the present disclosure along a second direction;

fig. 7 is a schematic partial structural view of a triangular truss provided in an embodiment of the present disclosure along a third direction.

Wherein the reference numbers are as follows:

the photovoltaic panel comprises a photovoltaic panel-110, a first frame-120, a second frame-130, a second built-in cavity-136, a third frame-160, a fourth frame-170, a support-190, a first connecting body-191, a second connecting body-192, a third connecting body-193, a fourth connecting body-194, a fire-resistant back panel-200, a fire-resistant heat-insulating body-210 and a plate-shaped connecting piece-220.

Detailed Description

In the correlation technique, the back of photovoltaic board is equipped with fire-resistant insulation material and fire-resistant backplate, makes photovoltaic module have fire-resistant and heat retaining performance, but photovoltaic module's atress performance is relatively poor, is unfavorable for being applied to in the building integrated photovoltaic.

In order to solve the above problem, an embodiment of the present disclosure provides a photovoltaic module, including: a photovoltaic panel; a support member connected to the back side of the photovoltaic panel; the fireproof back plate is arranged on one side, back to the photovoltaic panel, of the support piece and connected with the support piece; and the fireproof heat insulation body is filled between the photovoltaic panel and the fireproof back panel.

The photovoltaic module that this disclosed embodiment provided is based on fill fire-resistant heat retainer between photovoltaic module and the fire-resistant backplate, and this makes this photovoltaic module have excellent thermal insulation performance, and fire-resistant heat retainer and fire-resistant backplate cooperation make this photovoltaic module have excellent fire resistance performance moreover. Based on the support piece is connected with the back of photovoltaic board and is connected with fire-resistant backplate, also be the support piece locate between photovoltaic board and the fire-resistant backplate, this makes this photovoltaic module have excellent atress performance.

In order to more clearly understand the photovoltaic module provided by the embodiment of the present disclosure, the following detailed embodiments are given:

with combined reference to fig. 1, 2 and 3, a photovoltaic module provided by an embodiment of the present disclosure includes: photovoltaic panel 110, support 190, fire-resistant backsheet 200, fire-resistant thermal insulation 210, first border 120, second border 130, third border 160, and fourth border 170.

The photovoltaic panel 110 may have a rectangular plate structure, and the photovoltaic panel 110 may include first and second opposite sides, a third side connecting the first and second sides, and a fourth side opposite to the third side. The lengths of the first and second sides may be greater than the length of the third or fourth side, and the lengths of the first and second sides may also be less than the length of the third or fourth side. Of course, the photovoltaic panel may also be designed in other structures, such as a square panel, a circular panel, etc., which the present disclosure does not specifically limit.

The support 190 may be connected to the back surface of the photovoltaic panel 110 to improve the force-receiving performance of the photovoltaic panel 110. The number of the supporting members 190 may be at least two and may be distributed, so that the force-receiving performance of each position of the photovoltaic panel 110 is improved. The structure of the support member 190 may be designed in various ways, and in order to reduce the mass of the photovoltaic module, the support member 190 may have a hollow strip structure. The extending direction of the supporting member 190 may be parallel to one edge of the photovoltaic panel 110, for example, the extending direction of the supporting member 190 is parallel to the first edge or perpendicular to the first edge, which is beneficial to improve the force-bearing performance of the photovoltaic module along the direction parallel to the one edge. The support 190 may have a square tube structure, a trapezoidal tube structure, or other regular or irregular hollow strip structure. Illustratively, referring to fig. 3, the support 190 may be an inverted triangular truss, the bottom surface of which is connected to the back surface of the photovoltaic panel 110. The triangular truss has good structural stability and strong compressive property, and the bottom surface of the triangular truss is attached to the back surface of the photovoltaic panel 110, so that the supporting area of the photovoltaic panel 110 is increased, and the stress performance of the photovoltaic module is favorably improved. The cross section along the axial direction perpendicular to the triangular truss can be triangular, namely the triangular truss is in a hollow triangular strip structure. With continued reference to fig. 3, the cross section along the direction perpendicular to the axis of the triangular truss may be an isosceles triangle structure, which makes the two sides of the triangular truss have the same stress performance, and is beneficial to the structural stability of the photovoltaic module. With reference to fig. 4, 5, 6 and 7, the bottom surface and two side surfaces of the triangular truss are respectively provided with a plurality of hollowed-out triangles, which is not only beneficial to reducing the weight of the triangular truss, but also increases the structural stability of the triangular truss. The hollowed triangles on the bottom surface and the side surface of the triangular truss can be the same or different. Illustratively, with combined reference to fig. 5 and 6, the bottom surface of the triangular truss is provided with a first connecting body 191 perpendicular to the edge of the bottom surface, a second connecting body 192 forming an acute angle with the edge of the bottom surface, and a hollowed right-angled triangle is formed between the first connecting body 191, the second connecting body 192 and the long side of the bottom surface. An hollowed isosceles triangle is formed between the two adjacent second connecting bodies 192 and the edge of the bottom surface. The two sides of the triangular truss can have the same structure, and referring to fig. 6 and 7, the sides of the triangular truss are provided with a third connecting body 193 and a fourth connecting body 194 which form an acute angle with the edges of the sides, and a hollowed triangle is formed between the third connecting body 193, the fourth connecting body 194 and the edges of the bottom. The area of the hollowed-out triangle on the bottom surface of the triangular truss can be smaller than that of the hollowed-out triangle on the side surface, so that the bottom surface of the triangular truss has excellent stress performance, and the photovoltaic module has excellent stress performance.

The fire-resistant back sheet 200 may be disposed on a side of the support 190 facing away from the photovoltaic panel 110 and connected to the support 190. Illustratively, with continued reference to fig. 3, when the supporting member 190 is a triangular truss, the top corner of the triangular truss is connected to the fire-resistant back plate 200, and illustratively, the top corner of the triangular truss may be connected to the fire-resistant back plate 200 through a plate connector 220, and the plate surface of the plate connector 220 is parallel to the plate surface of the fire-resistant back plate 200, so that the connection area with the fire-resistant back plate 200 is increased, which facilitates stable connection between the fire-resistant back plate 200 and the triangular truss. The plate-shaped connecting member 220 may be a long plate structure, or may be a plurality of plate structures arranged in a dispersed manner. The plate-shaped connecting member 220 may be welded to the triangular truss, or a first limiting groove may be formed on the plate surface of the plate-shaped connecting member 220, and the vertex angle of the triangular truss is limited in the first limiting groove, or the plate-shaped connecting member 220 and the triangular truss are integrally formed, or the plate-shaped connecting member 220 is connected to the triangular truss through a connecting member such as a screw. The plate-shaped connecting member 220 may be bonded to the fire-resistant back plate 200, or the plate-shaped connecting member 220 may be welded to the fire-resistant back plate 200, or a second limiting groove may be formed on the plate surface of the fire-resistant back plate 200, and a portion of the plate-shaped connecting member 220 is limited in the second limiting groove, or the plate-shaped connecting member 220 and the fire-resistant back plate 200 are integrally formed, or the plate-shaped connecting member 220 is connected to the fire-resistant back plate 200 by a connecting member such as a screw. The refractory back plate 200 is a plate-shaped structure made of a refractory material, which enables the refractory back plate 200 to have excellent refractory performance, the refractory material may be metal, and the refractory back plate 200 may be a metal back plate.

The fire-resistant thermal insulator 210 is filled between the photovoltaic panel 110 and the fire-resistant back sheet 200, so that the photovoltaic module has fire-resistant thermal insulation performance. The refractory insulation 210 can be granular, layered, or other regular or irregular structures. Illustratively, the material of the fire-resistant insulation 210 may be a rubber sponge insulation or a foam-type fire-resistant insulation. At least a portion of the refractory insulation 210 may be filled within the support 190, which may provide good thermal insulation for the photovoltaic module at the location where the support 190 is located. Further, the fire-resistant heat insulator 210 can be filled in the hollowed-out triangle of the triangular truss, so that the position of the photovoltaic module where the supporting piece 190 is arranged has good heat insulation performance, and the whole photovoltaic module has uniform heat insulation performance.

With continued reference to fig. 1, 2, and 3, the first frame 120 and the second frame 130 are respectively assembled to the first side and the second side of the photovoltaic panel 110, the first frame 120 may be provided with a first built-in cavity, the second frame 130 may be provided with a second built-in cavity 136, and at least one of the first built-in cavity and the second built-in cavity 136 accommodates a junction box. In this way, the terminal box is disposed in at least one of the first built-in cavity and the second built-in cavity 136, but not in the back side of the photovoltaic panel 110, which facilitates the design of the fire-resistant thermal insulation 210, the support 190 and the fire-resistant back sheet 200 on the back side of the photovoltaic panel 110. The fire-resistant back plate 200 may be connected to the bottom of the first frame 120 and the bottom of the second frame 130 to stably fix the fire-resistant back plate 200. Illustratively, the fire-resistant back panel 200 is welded to the bottom of the first frame 120 and the bottom of the second frame 130, which makes the fire-resistant back panel 200 stably connected to the first frame 120 and the second frame 130. The fire-resistant back plate 200 may be further connected to the first frame 120 and the second frame 130 by a connector such as a screw, which is not particularly limited in this disclosure.

With continued reference to fig. 1, a third frame 160 and a fourth frame 170 are respectively assembled on a third side and a fourth side of the photovoltaic panel 110, and the third frame 160 and the fourth frame 170 may have the same structure as the first frame 120 or the second frame 130, or may have different structures. When the third frame 160 and the fourth frame 170 have different structures from the first frame 120 and the second frame 130, the third frame 160 and the fourth frame 170 may also be respectively provided with a third built-in cavity and a fourth built-in cavity (not shown) to accommodate the junction box, so as to provide a space for the back of the photovoltaic panel 110. Fire resistant backing 200 may also be attached, such as welded, to the bottom of third rim 160 and the bottom of fourth rim 170. The fire-resistant back plate 200 may be further connected to the third frame 160 and the fourth frame 170 by a connector such as a screw, which is not particularly limited in this disclosure.

Based on the above, the photovoltaic module provided by the embodiment of the present disclosure is based on the fact that the fireproof thermal insulator 210 is filled between the photovoltaic module and the fireproof back sheet 200, which enables the photovoltaic module to have excellent thermal insulation performance, and the fireproof thermal insulator 210 and the fireproof back sheet 200 cooperate to enable the photovoltaic module to have excellent fireproof performance. Based on at least two triangular trusses which are dispersedly arranged between the photovoltaic panel 110 and the fireproof back panel 200 and connected with the photovoltaic panel 110 and the fireproof back panel 200, the triangular trusses are stable in structure and good in stress performance, and therefore the photovoltaic module is endowed with excellent stress performance. By accommodating the junction box in at least one of the first built-in cavity of the first frame 120 and the second built-in cavity 136 of the second frame 130, it is convenient to design the support 190, the fire-resistant heat insulator 210, the fire-resistant back sheet 200, and the like on the back of the photovoltaic panel 110. The photovoltaic module has good thermal insulation performance, fire resistance and stress performance, meets the requirement of being assembled on a roof, and is beneficial to being applied to the integration of photovoltaic buildings.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A photovoltaic module, comprising:

a photovoltaic panel;

a support member connected to the back side of the photovoltaic panel;

2. The assembly according to claim 1, wherein the number of the supporting members is at least two and the supporting members are distributed.

3. The assembly according to claim 1, wherein the support member is a hollow elongated structure.

4. A photovoltaic module according to claim 3, characterized in that the extension of the support member is parallel to one edge of the photovoltaic panel.

5. The photovoltaic module of claim 3, wherein the support member is an inverted triangular truss, a bottom surface of the triangular truss being connected to the back surface of the photovoltaic panel, and a top corner of the triangular truss being connected to the fire resistant backing panel.

6. The photovoltaic module of claim 5, wherein the top corners of the triangular trusses are connected to the fire resistant back sheet by plate connectors, the plate surfaces of the plate connectors being parallel to the plate surfaces of the fire resistant back sheet.

7. The photovoltaic module of claim 5, wherein a cross section along a direction perpendicular to an axis of the triangular truss is an isosceles triangle structure; and/or

The bottom surface and the two side surfaces of the triangular truss are respectively provided with a plurality of hollowed triangles.

8. The photovoltaic module of claim 3, wherein at least a portion of the refractory insulation is filled within the support.

9. The assembly according to claim 1, wherein the photovoltaic panel includes first and second opposing edges, the assembly further comprising first and second rims assembled to the first and second edges, respectively, the first rim defining a first built-in cavity and the second rim defining a second built-in cavity, at least one of the first and second built-in cavities receiving a junction box.

10. The photovoltaic assembly of claim 9, wherein the fire resistant backing sheet is connected to a bottom of the first frame and a bottom of the second frame.