CN209804685U

CN209804685U - Back plate for crystalline silicon solar photovoltaic module

Info

Publication number: CN209804685U
Application number: CN201920953271.7U
Authority: CN
Inventors: 李盼龙; 黄飞; 宋晓玲
Original assignee: JIANGSU SHIGUANG PV CO Ltd
Current assignee: JIANGSU SHIGUANG PV CO Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2019-12-17
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a crystalline silicon solar PV modules uses backplate, including the backplate, the backplate is located the inboard bottom of framework, the inboard bottom edge of framework is provided with the mounting groove, the edge of backplate is provided with, and backplate and formula structure as an organic whole, the top surface of backplate is provided with the EVA adhesive film layer, the bottom surface of backplate is provided with the PVDF outer protective layer, in the utility model discloses the PVDF outer protective layer is designed in the backplate outside, and the EVA adhesive film layer is designed to the inboard, makes the backplate have good adhesive property; have good anti environment erosion ability, designed the backplate that has the protruding limit of extension to the edge of backplate has designed the sealing rubber cover of being connected with the protruding limit block of extension, and the mounting groove of cooperation framework makes the protruding limit of extension jointly take sealing rubber cover and mounting groove block, makes backplate and framework block firm, and guarantees sealedly, has avoided the condition that traditional glue bonding fracture appears.

Description

back plate for crystalline silicon solar photovoltaic module

Technical Field

The utility model belongs to the technical field of the photovoltaic module backplate, concretely relates to crystalline silicon is backplate for solar PV modules.

Background

The single solar cell cannot be directly used as a power supply. The power supply must be composed of several single batteries connected in series, parallel and tightly packed. The photovoltaic module is a core part in a solar power generation system and is also the most important part in the solar power generation system. The solar cell back plate is positioned on the back of the solar cell panel, plays a role in protecting and supporting the cell, and has reliable insulativity, water resistance and aging resistance.

The existing method still has some defects in use: present backplate all is dull and stereotyped structure, and when the installation, all just the laminating is in the framework bottom, and then sealed framework and backplate edge are sealed to the rethread glue, and the viscose department that probably appears after the external insolate cracks, leads to the relatively poor condition of leakproofness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crystalline silicon solar PV modules uses backplate to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a crystalline silica solar photovoltaic is backplate for subassembly, includes the backplate, the backplate is located the inboard bottom of framework, the inboard bottom edge of framework is provided with the mounting groove, the edge of backplate is provided with, and backplate and formula structure as an organic whole, the top surface of backplate is provided with the EVA glued membrane layer, the bottom surface of backplate is provided with the outer protective layer of PVDF, the bottom extends to the mounting groove in the joint connection, the outside be provided with the sealing rubber cover, the inboard surface and the block junction of sealing rubber cover are provided with the splice groove, be connected with the splice groove block.

Preferably, the section of the back plate is I-shaped, and the size of the back plate is consistent with that of the splicing groove.

Preferably, the mounting groove is of a rectangular annular groove structure, and the bottom surface is matched with the opening of the mounting groove in size.

Preferably, the back plate is provided with a PET polyester film.

Compared with the prior art, the beneficial effects of the utility model are that: the PVDF outer protective layer is designed on the outer side of the middle back plate, and the EVA adhesive film layer is designed on the inner side of the middle back plate, so that the back plate has good bonding performance; have good anti environment erosion ability, designed the backplate that has the protruding limit of extension to the edge of backplate has designed the sealing rubber cover of being connected with the protruding limit block of extension, and the mounting groove of cooperation framework makes the protruding limit of extension jointly take sealing rubber cover and mounting groove block, makes backplate and framework block firm, and guarantees sealedly, has avoided the condition that traditional glue bonding fracture appears.

drawings

Fig. 1 is a schematic structural view of a back plate installation state of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the back plate of the present invention;

FIG. 3 is a schematic cross-sectional view of the back plate of the present invention;

In the figure: 1. a back plate; 2. a frame body; 3. sealing the rubber sleeve; 4. mounting grooves; 5. an EVA film layer; 6. a PVDF outer protective layer; 7. extending the raised edge; 8. and (6) splicing the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a crystalline silicon is backplate for solar PV modules, including backplate 1, backplate 1 is located the inboard bottom of framework 2, the inboard bottom edge of framework 2 is provided with mounting groove 4, the edge of backplate 1 is provided with 7, and backplate 1 and 7 formula structure as an organic whole, the top surface of backplate 1 is provided with EVA glued membrane layer 5, the bottom surface of backplate 1 is provided with PVDF outer protective layer 6, 7 the bottom extends to the interior joint connection of mounting groove 4, 7 the outside is provided with sealing rubber sleeve 3, sealing rubber sleeve 3's inboard surface and 7 block junctions are provided with splice groove 8, 7 are connected with 8 block of splice groove, in order to guarantee sealed block.

in this embodiment, preferably, the cross sections of the back plates 1 and 7 are in an i-shaped structure, and the sizes of the back plates 7 and the splicing grooves 8 are kept consistent, so that the clamping connection is ensured.

In this embodiment, preferably, the shape of the mounting groove 4 is a rectangular annular groove structure, and the bottom surface of the mounting groove 7 is matched with the opening size of the mounting groove 4, so as to ensure the clamping sealing.

In this embodiment, it is preferable that the back plate 1 is provided with a PET polyester film for waterproof function.

The utility model discloses a theory of operation and use flow: the utility model discloses when the installation, align the protruding limit 7 of extension with splice groove 8 on the sealing rubber cover 3 for 3 blocks of sealing rubber cover are on extending protruding limit 7, then aim at mounting groove 4 on the framework 2 with the sealing rubber cover 3 at 1 edge of backplate again, make backplate 1 and framework 2 block fixed connection, 3 blocks of sealing rubber cover are in mounting groove 4, make the gap between 7 and the mounting groove 4 fill, guaranteed sealed between backplate 1 and the framework 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a crystalline silicon is backplate for solar PV modules, includes backplate (1), its characterized in that: the utility model discloses a structure, including backplate (1), mounting groove (4), edge (7) and backplate (1) and (7) formula structure as an organic whole, the top surface of backplate (1) is provided with EVA glued membrane layer (5), the bottom surface of backplate (1) is provided with outer protective layer of PVDF (6), the clamping connection in (7) bottom extension to mounting groove (4), the outside of (7) is provided with sealing rubber sleeve (3), the inboard surface of sealing rubber sleeve (3) is provided with splice groove (8) with (7) clamping connection department, (7) are connected with splice groove (8) block.

2. The back sheet for a crystalline silicon solar photovoltaic module according to claim 1, wherein: the tangent planes of the back plates (1) and (7) are I-shaped structures, and the sizes of the back plates (7) and the splicing grooves (8) are kept consistent.

3. The back sheet for a crystalline silicon solar photovoltaic module according to claim 1, wherein: the shape of mounting groove (4) is rectangular annular groove structure, the bottom surface of (7) and the opening size phase-match of mounting groove (4).

4. The back sheet for a crystalline silicon solar photovoltaic module according to claim 1, wherein: the back plate (1) is provided with a PET polyester film.