CN218351481U - High-stability double-glass photovoltaic module - Google Patents

Abstract

The utility model belongs to the technical field of dual-glass photovoltaic module structure, especially, relate to a dual-glass photovoltaic module of high stability. The utility model discloses a set up the banding sticky tape earlier on positive glass, first glued membrane, battery piece, lead wire, second glued membrane to and back glass, set up the mode of aluminum alloy frame unit again, make this dual-glass photovoltaic module's structure neat more, stable, safe, firm. The utility model has the advantages of it is following: firstly, when the double-glass photovoltaic module is laminated and assembled, the edge sealing adhesive tape can properly reduce the glue overflow degree of the first adhesive film and the second adhesive film; secondly, the edge sealing adhesive tape can improve the structural integrity of the double-glass photovoltaic module main body; third, the aluminum alloy frame unit can fully protect the dual-glass photovoltaic module main body, and the latter is prevented from being easily damaged.

Description

High-stability double-glass photovoltaic assembly

Technical Field

The utility model belongs to the technical field of dual-glass photovoltaic module structure, especially, relate to a dual-glass photovoltaic module of high stability.

Background

Compared with the common flat photovoltaic module, the double-glass photovoltaic module has the greatest difference in the material of the back plate. The back plate of the double-glass photovoltaic module is also a piece of glass, and the back plate of the common flat photovoltaic module is a piece of synthetic resin.

It is therefore conceivable that the advantages of the dual glass photovoltaic module include at least: the ground reflected light can also generate electricity, the glass back plate has better wear resistance, better insulation, higher fire-proof grade, almost no possibility of water permeation and outstanding overall weather resistance. Therefore, the mainstream photovoltaic module in the market at present is the double-glass photovoltaic module.

Chinese utility model patent that patent publication number is CN216671657U, publication day is 2022.06.03 discloses a dual-glass photovoltaic module, including battery cluster, first plastic film layer, second plastic film layer, first glass layer, second glass layer and prevent overpressure sealing spare: a first groove is formed in the edge of the lower surface of the first glass layer and is distributed annularly along the periphery of the first glass layer; the second glass layer is arranged opposite to the first glass layer and is the same as the first glass layer in size, a second groove is formed in the edge of the upper surface of the second glass layer, the second grooves are distributed along the periphery of the second glass layer in an annular mode, and the second adhesive film layer is located in the inner side area of the second groove; the overpressure-proof sealing piece is arranged around the battery string, and two ends of the overpressure-proof sealing piece are respectively inserted into the first groove and the second groove.

The utility model discloses a double-glass photovoltaic module in patent, its principle is roughly: first glued membrane layer and second glued membrane layer are used for bonding firmly, and prevent that excessive pressure sealing member then when two glass photovoltaic module lamination equipment, avoid damaging the battery cluster, crushing glass because pressure is too big.

However, the double-glass photovoltaic module has at least the following 2 defects in the actual production and use process.

First, during lamination assembly, the glue overflow phenomenon still occurs at the second groove, and a lot of glue overflow blocks and glue overflow strips are finally extruded at the second groove, which is a serious quality problem.

Second, this dual-glass photovoltaic module lacks aluminum alloy frame structure, therefore its marginal structural strength is not enough far away, and the edge is damaged by bumping easily.

Therefore, a new dual-glass photovoltaic module with a more stable overall structure is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high stability's dual-glass photovoltaic module, it can be through at front glass, first glued membrane, battery piece, lead wire, second glued membrane to and set up the banding sticky tape on the glass of back earlier, set up the mode of aluminum alloy frame unit again, make this dual-glass photovoltaic module's structure neat more, stable, safe, firm.

The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a high stability's dual-glass photovoltaic module, the structure includes front glass, first glued membrane, battery piece, lead wire, second glued membrane to and back glass, still include that the side bonds respectively and is in the banding sticky tape on front glass and the back glass, and the cover is in aluminum alloy frame unit on front glass and the back glass.

The further preferred technical scheme is as follows: and the edge sealing adhesive tape is provided with air holes.

The further preferred technical scheme is as follows: the air holes are circular and have the diameter of 1.0-1.5mm.

The further preferred technical scheme is as follows: the number of the edge sealing adhesive tapes is 1, and the edge sealing adhesive tapes are broken end to end at the lead wire position.

The further preferred technical scheme is as follows: the aluminum alloy frame unit comprises 4U-shaped aluminum profiles arranged on the front glass and the back glass in a clamping mode, the two ends of each U-shaped aluminum profile are arranged at two ends and used for being spliced to form a diagonal plane of the rectangular frame structure, and the aluminum alloy frame unit is arranged on one of the U-shaped aluminum profiles and used for being worn out outwards through the hole of the lead.

The further preferred technical scheme is as follows: the aluminum alloy frame unit further comprises a third adhesive film arranged between the edge sealing adhesive tape and the inner side face of the U-shaped aluminum profile.

The further preferred technical scheme is as follows: the aluminum alloy frame unit further comprises a first leakage-proof sealing strip arranged on the oblique cutting plane.

The further preferred technical scheme is as follows: the aluminum alloy frame unit further comprises an extension pipe which is arranged on the outer side face of the U-shaped aluminum profile, is in butt joint with the opening and is used for inserting and installing the lead.

The further preferred technical scheme is as follows: the aluminum alloy frame unit further comprises a second leakage-proof sealing strip arranged on the outer ring surface of the extension pipe and on the lead.

The further preferred technical scheme is as follows: the number of the third adhesive films is 1 or 4.

The utility model has the advantages of the following.

First, this dual-glass photovoltaic module when lamination equipment, the excessive gluey degree of first glued membrane and second glued membrane can suitably be reduced to the banding sticky tape.

Second, the structural integrity of two glass photovoltaic module main parts can be improved to the banding sticky tape.

Third, the aluminum alloy frame unit can fully protect the dual-glass photovoltaic module main body, and the latter is prevented from being easily damaged.

And fourthly, punching is performed on the edge sealing adhesive tape, so that the air permeability of the double-glass photovoltaic module main body is ensured, and the excessive expansion deformation of the first adhesive film and the second adhesive film is avoided.

Fifthly, between aluminum alloy frame unit and the dual-glass photovoltaic module main part, have the block connection effect of foundation, through the third glued membrane, can bond fixedly again moreover, guarantee that the former is difficult for dropping.

Sixthly, the U-shaped aluminum profiles can be bonded by the first leakage-proof sealing strips, and the first leakage-proof sealing strips can block the originally overflowing glue material of the third glue film.

Seventhly, the lead is stably installed on the U-shaped aluminum profile and is not easy to break.

Eighth, the sizing material of third glued membrane is difficult for spilling in extension pipe department equally, and whole double-glass photovoltaic module's structure is very stable, orderly, and high quality.

Drawings

Fig. 1 is a schematic diagram of the layered structure of the present invention.

Fig. 2 is a schematic diagram of the positions of the middle sealing tape and the lead wire of the present invention.

Fig. 3 is a schematic structural view of the middle edge sealing tape of the present invention.

Fig. 4 is a schematic structural diagram of the aluminum alloy frame unit of the present invention.

Fig. 5 is a schematic structural view of the third glue film and the leak-proof sealing strip of the present invention.

Fig. 6 is a schematic view of the position structure of the middle extension pipe and the second leakage-proof sealing strip of the present invention.

In the drawings, the reference numerals denote the following components: the solar cell comprises front glass a, a first adhesive film b, a cell c, a lead d, a second adhesive film e, back glass f, an edge sealing adhesive tape 1 and an aluminum alloy frame unit 2.

The air-permeable pipe comprises an air vent 1-1, a U-shaped aluminum section bar 201, a diagonal plane 202, an opening 203, a third adhesive film 204, a first leakage-proof sealing strip 205, an extension pipe 206 and a second leakage-proof sealing strip 207.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

As shown in the accompanying drawings 1-6, the high-stability double-glass photovoltaic module structurally comprises front glass a, a first adhesive film b, a battery piece c, a lead d, a second adhesive film e, back glass f, edge sealing adhesive tapes 1 with side edges respectively bonded to the front glass a and the back glass f, and aluminum alloy frame units 2 sleeved on the front glass a and the back glass f.

In the present embodiment, the front glass a, the first adhesive film b, the battery piece c, the lead wire d, the second adhesive film e, and the back glass f together form the photovoltaic module main body.

The battery piece c is a 182mm silicon wafer, the first adhesive film b and the second adhesive film e are made of POE (polyolefin elastomer), namely, the ethylene-octene copolymer elastomer is compared with the existing common EVA (ethylene vinyl acetate copolymer) material, has lower water vapor transmittance and high volume resistivity, ensures the running safety of the double-glass photovoltaic module in a high-temperature and high-humidity environment, and has aging resistance for long-term use, so that the module can be used for a long time.

In addition, banding sticky tape 1 is the polyester sticky tape, and the photovoltaic module main part is when the lamination equipment, banding sticky tape 1 can avoid above-mentioned POE to extrude in a large number, the hourglass of greatly reduced photovoltaic module main part side degree of gluing.

Finally, the aluminum alloy frame unit 2 is used for reinforcing the photovoltaic module main body, so that the side edges of the photovoltaic module main body are not easy to be damaged, and a stable installation position is provided for the lead d, otherwise, the lead d is relatively easy to break when pulled, and the photovoltaic module main body is easy to pull and separate.

The edge sealing adhesive tape 1 is provided with air holes 1-1.

In this embodiment, a small amount of air bubbles may be introduced into the first adhesive film b and the second adhesive film e during lamination, and the photovoltaic module body itself needs to have certain air permeability when being used in the sun.

Therefore, this is the role of the vent hole 1-1, in other words, if the vent hole 1-1 is not present, the photovoltaic module main body is easily inflated.

The air holes 1-1 are circular and have the diameter of 1.0-1.5mm.

In this embodiment, if the size of the vent hole 1-1 is too large, the POE material will also leak a lot of glue at the vent hole 1-1 during lamination, while if the size is relatively small, the extruded shape of the glue will be relatively small, and the glue can be easily wiped off, and the POE material can be uniformly squeezed and dispersed on the inner side of the edge sealing tape 1 without opening the hole.

The final effect is, the POE material is filled up to front glass a, battery piece c to and back glass f two liang, and the POE material is only the side is in 1 department of banding sticky tape is outwards uplifted by a small margin, guarantees that the photovoltaic module main part fully bonds, and does not have obvious hourglass and glue the phenomenon.

The number of the edge sealing adhesive tapes 1 is 1, and the edge sealing adhesive tapes are broken end to end at the lead d.

In the present embodiment, the above-mentioned end-to-end break is used to extend the lead wires d, and further, the above-mentioned end-to-end break is only the disconnection of the edge sealing tape 1 itself, and it is not necessary to have a rectangular notch in position and shape. In other words, the two ends of the edge sealing tape 1 can be adhered to the lead d.

Aluminum alloy frame unit 2 includes that the block sets up 4U-shaped aluminium alloy 201 on front glass a and the back glass f set up respectively U-shaped aluminium alloy 201 both ends position department for the scarf joint forms rectangle frame structure 202, and sets up one of them on the U-shaped aluminium alloy 201, and be used for outwards wearing out lead wire d's trompil 203.

In this embodiment, the U-shaped aluminum profile 201 has the most basic fixing effect, namely, the two sides of the U-shaped structure clamp the front glass a and the back glass f, respectively, so the opening width of the U-shaped structure needs to be smaller than the thickness of the photovoltaic module main body.

In addition, the respective inclination angles of two adjacent chamfer surfaces 202 need to be ensured to be 90 degrees together.

The aluminum alloy frame unit 2 further comprises a third adhesive film 204 arranged between the edge sealing adhesive tape 1 and the inner side surface of the U-shaped aluminum profile 201.

In this embodiment, the third adhesive film 204 may be POE, or other suitable adhesives, or a strip-shaped film body with both sides capable of being bonded, and when the third adhesive film is a liquid adhesive, the third adhesive film needs to be fully cured, and when the third adhesive film is a double-sided adhesive strip, the U-shaped aluminum profile 201 needs to be properly and timely pressed.

The aluminum alloy frame unit 2 further comprises a first leak-proof sealing strip 205 arranged on the chamfer 202.

In this embodiment, the first leakproof sealing strip 205 is in a U shape, and can be used for preventing a large amount of glue leakage between the two chamfered surfaces 202 when the liquid adhesive at the third glue film 204 is extruded.

In other words, if the third adhesive film 204 is a double-sided adhesive tape, the third adhesive film 204 does not need to bear the responsibility of preventing the adhesive leakage, and only two adjacent U-shaped aluminum profiles 201 need to be adhered and reinforced.

The aluminum alloy frame unit 2 further comprises an extension tube 206 which is arranged on the outer side surface of the U-shaped aluminum profile 201, is butted with the opening 203, and is used for inserting and installing the lead wire d.

In this embodiment, the extension tube 206 mainly serves to reinforce the root of the mounting end of the lead d, and if the extension tube 206 is not provided, the lead d is easily broken at the edge of the opening 203 after a period of use.

Of course, the extension pipe 206 is integrally formed with the U-shaped aluminum profile 201.

The aluminum alloy frame unit 2 further comprises a second leakproof seal strip 207 arranged on the outer circumferential surface of the extension pipe 206 and the lead wire d.

In this embodiment, when the third adhesive film 204 is a liquid adhesive, it may leak between the two oblique planes 202 and also at the extension tube 206 when it is extruded, so that the second leakproof sealing strip 207 is used to wind several turns sufficiently to reinforce the effect of preventing the leakage.

The second leakproof seal 207 may be made of a common single-sided adhesive tape.

The number of the third glue film 204 is 1 or 4.

In this embodiment, when the third adhesive film 204 is formed by curing a liquid adhesive, it is only required to coat one circle of the edge sealing adhesive tape 1, which is the scheme of 1 sheet.

But at this time, it should be noted that: 1. the third adhesive film 204 cannot completely cover the whole edge sealing adhesive tape 1, otherwise the edge sealing adhesive tape 1 cannot be breathable; 2. it also need not necessarily require complete round, avoids the effect of third glued membrane 204, only assists on the photovoltaic module main part to consolidate the U-shaped aluminium alloy 201.

In addition, if the third adhesive film 204 is a double-sided adhesive tape, the number of the third adhesive film is 1 or 4, the length and the width of the third adhesive film do not have specific requirements, and the third adhesive film cannot completely cover the edge sealing adhesive tape 1, so that the effect of assisting in reinforcing the U-shaped aluminum profile 201 can be ensured to exist properly.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the appended claims.

Claims (10)

1. The utility model provides a high stability's double-glass photovoltaic module, the structure includes front glass (a), first glued membrane (b), battery piece (c), lead wire (d), second glued membrane (e) to and back glass (f), its characterized in that: the glass frame further comprises edge sealing adhesive tapes (1) with side edges respectively bonded to the front glass (a) and the back glass (f), and aluminum alloy frame units (2) sleeved on the front glass (a) and the back glass (f).

2. The high-stability dual-glass photovoltaic assembly according to claim 1, wherein: the edge sealing adhesive tape (1) is provided with air holes (1-1).

3. The high-stability dual-glass photovoltaic assembly according to claim 2, wherein: the air holes (1-1) are circular and have the diameter of 1.0-1.5mm.

4. The high-stability dual-glass photovoltaic assembly according to claim 1, wherein: the number of the edge sealing adhesive tapes (1) is 1, and the edge sealing adhesive tapes are broken end to end at the lead (d).

5. The high-stability double-glass photovoltaic module according to claim 1, characterized in that: aluminum alloy frame unit (2) are in including the block setting 4U-shaped aluminium alloy (201) on front glass (a) and back glass (f) set up respectively U-shaped aluminium alloy (201) both ends position department for the scarf (202) of concatenation formation rectangle frame structure, and set up one of them on U-shaped aluminium alloy (201), and be used for outwards wearing out trompil (203) of lead wire (d).

6. The high-stability double-glass photovoltaic module according to claim 5, wherein: the aluminum alloy frame unit (2) further comprises a third adhesive film (204) arranged between the edge sealing adhesive tape (1) and the inner side face of the U-shaped aluminum profile (201).

7. The high-stability dual-glass photovoltaic assembly according to claim 6, wherein: the aluminum alloy frame unit (2) further comprises a first leakage-proof sealing strip (205) arranged on the oblique cutting surface (202).

8. The high-stability dual-glass photovoltaic assembly according to claim 5, wherein: the aluminum alloy frame unit (2) further comprises an extension pipe (206) which is arranged on the outer side face of the U-shaped aluminum section bar (201), is butted with the opening (203) and is used for inserting and installing the lead (d).

9. The high-stability dual-glass photovoltaic assembly according to claim 8, wherein: the aluminum alloy frame unit (2) further comprises a second leakage-proof sealing strip (207) arranged on the outer ring surface of the extension pipe (206) and the lead wire (d).

10. The high-stability double-glass photovoltaic module according to claim 6, wherein: the number of the third adhesive films (204) is 1 or 4.

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