CN216849954U

CN216849954U - Structure of exposed strap of solar cell panel surface pressfitting

Info

Publication number: CN216849954U
Application number: CN202220092433.4U
Authority: CN
Inventors: 尉宏真
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-28
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a structure of a photovoltaic solar cell panel surface pressing exposed metal belt, which comprises a TPT back plate, a EVA transparent plate I, a SP cell, a conductive copper belt, a EVA transparent plate II, two copper belts, an EVA hollow plate and a junction box from the bottom layer upwards in sequence; the TPT back plate, the EVA transparent plate I, the SP battery piece, the conductive copper strip, the EVA transparent plate II, the two copper strips and the EVA hollowed-out plate are integrated through lamination, fusion and bonding; two rows of hollow holes which are arranged discontinuously are respectively arranged on the EVA hollow plate corresponding to the positions of the two copper strips, and the positions of the upper surface of the copper strips corresponding to the hollow holes are exposed through the hollow holes; the two ends of the EVA hollowed-out plate are respectively fixed with a junction box, three terminal wires are led out from the two junction boxes, the middle terminal wire is a double-core wire and is used for connecting the anode and the cathode of a power supply, and the terminal wires on the two sides of the EVA hollowed-out plate are single-core wires and are respectively connected with two copper strips. The utility model discloses each layer combines closely, and the durability is strong.

Description

Structure of exposed strap of solar cell panel surface pressfitting

Technical Field

The utility model relates to a photovoltaic solar energy power generation technical field, concretely relates to structure of the exposed strap of solar cell panel surface pressfitting.

Background

At present, the photovoltaic solar power generation technology is widely applied to various fields of national economy, and a photovoltaic solar panel is generally adopted as a power supply of electrical equipment under the condition that a long-term reliable power supply does not exist in the field. In some special application scenarios, for example, limited by space conditions, when laying solar panels in a narrow limited space as much as possible and laying metal strips (wires) with other specific functions thereon, a corresponding effective solution is currently lacking.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art, the utility model aims at providing a structure of the exposed strap of solar cell panel surface pressfitting.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a structure for pressing an exposed metal belt on the surface of a photovoltaic solar cell panel sequentially comprises a TPT back panel, an EVA transparent plate I, an SP cell slice, a conductive copper belt, an EVA transparent plate II, two copper belts, an EVA hollowed-out panel and a junction box from bottom to top; the TPT back plate, the EVA transparent plate I, the SP battery piece, the conductive copper strip, the EVA transparent plate II, the two copper strips and the EVA hollowed-out plate are integrated through lamination, fusion and bonding; two rows of hollow holes which are arranged discontinuously are respectively arranged on the EVA hollow plate corresponding to the positions of the two copper strips, and the positions of the upper surface of the copper strips corresponding to the hollow holes are exposed through the hollow holes; the two ends of the EVA hollowed-out plate are respectively fixed with a junction box, three terminal wires are led out from the two junction boxes, the middle terminal wire is a double-core wire and is used for connecting the anode and the cathode of a power supply, and the terminal wires on the two sides of the EVA hollowed-out plate are single-core wires and are respectively connected with two copper strips.

Further, the junction box is adhered to two ends of the EVA hollow board by utilizing single-component room temperature curing silicon rubber.

Furthermore, wire holes corresponding to two ends of the two copper strips are respectively arranged at two ends of the EVA hollowed-out plate, and the two ends of the two copper strips respectively penetrate through the wire holes at corresponding positions.

The beneficial effects of the utility model reside in that:

1. the utility model discloses in, through setting up EVA transparent plate one, EVA transparent plate two and EVA fretwork board, can make each layer structure melt through the lamination and bond as an organic wholely, the bonding is inseparable, the durability is strong, be difficult for droing.

2. For the surface of a flexible or semi-flexible photovoltaic solar panel, if the copper strip is fixed by using the adhesive, the copper strip can be stretched and lengthened when the photovoltaic solar panel is bent inwards to a large extent, and the copper strip can be wrinkled and peeled off on the surface of the photovoltaic solar panel after recovery, so that the copper strip falls off under the action of long-term sunlight radiation, temperature change and wind power. The utility model discloses an upper strata and the lower floor that make the copper strips all bond with EVA layer melting, make the copper strips by fixed completely, can prevent effectively that the problem of fold and peeling off from appearing in the copper strips.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is a schematic view of the relationship between the EVA hollow plate and the copper strip in the embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.

The embodiment provides a structure for pressing an exposed metal belt on the surface of a photovoltaic solar cell panel, which sequentially comprises a TPT back plate 1, an EVA transparent plate I2, an SP cell, a conductive copper belt 3, an EVA transparent plate II 4, a copper belt 5, an EVA hollowed-out plate 6 and a junction box 7 from bottom to top; the TPT back plate 1, the EVA transparent plate I2, the SP battery piece, the conductive copper strip 3, the EVA transparent plate II 4, the two copper strips 5 and the EVA hollowed-out plate 6 are integrated through lamination and fusion bonding; two rows of hollow holes 61 which are arranged discontinuously are respectively arranged on the EVA hollow plate 6 corresponding to the positions of the two copper strips 5, and the positions of the upper surfaces of the copper strips 5 corresponding to the hollow holes are exposed through the hollow holes 61; the two ends of the EVA hollowed-out plate 6 are respectively fixed with a junction box 7, three terminal wires are led out from the two junction boxes 7, the middle terminal wire is a double-core wire and is respectively used for connecting the anode and the cathode of a power supply, and the terminal wires on the two sides of the EVA hollowed-out plate are single-core wires and are respectively connected with two conductive copper strips 5.

It should be noted that the upper surface of the copper strip 5 is exposed from the intermittently arranged hollow holes on the EVA hollow plate 6, so as to form an intermittently exposed conductor.

In this embodiment, the junction box 7 is adhered to two ends of the EVA hollowed-out plate 6 by using single-component room temperature curing silicone rubber.

In this embodiment, two ends of the EVA hollowed-out plate 6 are respectively provided with wire outlets corresponding to two ends of the two copper strips 5, and two ends of the two copper strips 5 respectively penetrate through the wire outlets at corresponding positions. The arrangement of the wire outlet holes is beneficial to positioning the copper strips, so that two ends of the copper strips 5 penetrate out of the wire outlet holes, and the two copper strips can be further ensured to correspond to the two rows of the hollowed-out holes.

The preparation process of the structure comprises the following steps:

(a) according to the requirements of different specifications and models of the flexible photovoltaic solar panel, the boundary sizes of the TPT back plate 1, the EVA transparent plate I2, the EVA transparent plate II 4 and the EVA hollowed-out plate 6 are cut.

(b) And welding and assembling the SP battery piece and the conductive copper strip 3 for later use according to the process requirements.

(c) And cutting the length of the copper strip 5 according to the allowance when the length of the solar panel is exceeded and the copper strip is tensioned.

(e) Two copper strips 5 are placed under two rows of hollowed-out strip-shaped holes in the bottom surface of the EVA hollowed-out plate 6, two ends of each copper strip 5 respectively penetrate through wire outlet holes reserved at two ends of the EVA hollowed-out plate 6, the two copper strips 5 are tensioned according to a set tension value by using a special tensioning tool, and then the relative positions of the two copper strips 5 are adjusted to be aligned with the two rows of hollowed-out strip-shaped holes in the bottom surface of the EVA hollowed-out plate 6.

(f) The TPT back plate 1, the EVA transparent plate I2, the SP battery piece, the conductive copper strip 3, the EVA transparent plate II 4, the copper strip 5 and the EVA hollow plate 6 are sequentially stacked, tidily and tightly pressed from the bottom layer upwards, and then are temporarily fixed.

(j) And (3) putting the TPT back plate 1, the EVA transparent plate I2, the SP battery piece, the conductive copper strip 3, the EVA transparent plate II 4, the copper strip 5 and the EVA hollowed-out plate 6 which are fixed temporarily into a laminating machine for vacuum high-temperature pressing. The vacuum pressing time and the control temperature are determined according to the condition tests such as material characteristics, thickness and the like of each layer.

(k) Finally, two junction boxes are bonded and fixed at two ends of the EVA hollow plate 6, and the copper strip 5 is made to be

Various corresponding changes and modifications can be made by those skilled in the art according to the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.

Claims

1. A structure for pressing an exposed metal belt on the surface of a photovoltaic solar cell panel is characterized by sequentially comprising a TPT back panel (1), an EVA transparent plate I (2), an SP cell, a conductive copper belt (3), an EVA transparent plate II (4), two copper belts (5), an EVA hollow plate (6) and a junction box (7) from bottom to top; the TPT back plate (1), the EVA transparent plate I (2), the SP battery piece, the conductive copper strip (3), the EVA transparent plate II (4), the two copper strips (5) and the EVA hollow plate (6) are integrated through lamination, fusion and bonding; two rows of hollow holes (61) which are arranged discontinuously are respectively formed in the positions, corresponding to the two copper strips (5), of the EVA hollow plate (6), and the positions, corresponding to the hollow holes, of the upper surface of each copper strip (5) are exposed through the hollow holes (61); the two ends of the EVA hollowed-out board (6) are respectively fixed with a junction box (7), three terminal wires are led out from the two junction boxes (7), the middle terminal wire is a double-core wire and is used for connecting the anode and the cathode of a power supply, and the terminal wires on the two sides of the terminal wire are single-core wires and are respectively connected with the two copper strips (5).

2. The structure of the photovoltaic solar panel with the exposed metal strips pressed on the surface according to claim 1, wherein the junction box (7) is adhered to two ends of the EVA hollow plate (6) by using single-component room temperature curing silicon rubber.

3. The structure of the photovoltaic solar panel according to claim 1, wherein the two ends of the EVA hollowed-out plate (6) are respectively provided with wire holes corresponding to the two ends of the two copper strips (5), and the two ends of the two copper strips (5) respectively penetrate through the wire holes at the corresponding positions.