CN217881536U - High-efficient two-sided battery pack - Google Patents
High-efficient two-sided battery pack Download PDFInfo
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- CN217881536U CN217881536U CN202222235995.2U CN202222235995U CN217881536U CN 217881536 U CN217881536 U CN 217881536U CN 202222235995 U CN202222235995 U CN 202222235995U CN 217881536 U CN217881536 U CN 217881536U
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- sided battery
- double
- antireflection film
- glass substrate
- battery pack
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Abstract
The utility model provides a high-efficient two-sided battery pack belongs to photovoltaic module and makes technical field. The utility model provides a pair of high-efficient two-sided battery pack, including two-sided battery and frame, two-sided battery includes front glass base member, front antireflection coating, battery body, back antireflection coating and back glass base member, still includes the buffer layer membrane, and the buffer layer membrane sets up between front glass base member and front antireflection coating and/or between back glass base member and the back antireflection coating, and the refracting index of buffer layer membrane is between front glass base member and front antireflection coating; be provided with the mounting groove on the frame, two-sided battery sets up in the mounting groove. The utility model provides a pair of high-efficient two-sided battery pack further promotes the luminousness of front glass base member and back glass base member, realizes matching with battery body's best optics, adds the buffer layer membrane, optimizes the refracting index between each layer, effectively keeps apart the influence of external to the device, further improves two-sided battery pack's weatherability.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic module makes, concretely relates to high-efficient two-sided battery pack.
Background
Solar energy is a renewable energy source, has the advantages of cleanness, safety, wide application and the like, and has an important position in a long-term energy strategy, photovoltaic power generation is a mainstream form of solar energy use, the photovoltaic power generation is a technology for converting light energy into electric energy by utilizing a photovoltaic effect of a semiconductor interface, a core unit of the photovoltaic power generation is a photovoltaic module, a common photovoltaic module comprises a single-sided battery module and a double-sided battery module, and the difference between the double-sided battery module and the single-sided battery module is as follows: the double-sided battery pack is formed by packaging double-sided battery pieces, the front and the back of the double-sided battery pack can be irradiated by sunlight and generate electric energy, therefore, the power generation efficiency of the double-sided battery pack is greatly improved relative to the single-sided battery pack, the high-efficiency double-sided battery pack gradually becomes an industrial mainstream, the yield and the installation amount are increased day by day, in order to practice the national strategy of carbon neutralization, the product efficiency of the double-sided battery pack needs to be further improved, the product quality is ensured, for the double-sided battery pack, except the power of the front assembly of the double-sided battery pack is continuously optimized, the back power generation efficiency of the double-sided battery pack is also not negligible, the ground reflectivity is caused to have certain difference according to the difference of different power station ground environments, the back power generation gain of the double-sided battery pack can be up to 30%, therefore, under the condition of ensuring the normal installation and safe grounding of the double-sided battery pack, the back power generation efficiency of the double-sided battery pack is particularly important for improving the whole power generation efficiency of the pack, and the main factors influencing the back power generation efficiency of the double-sided battery pack comprise: the double-sided rate of the cell body sheet, the matching of electrical parameters, the light transmittance of the back glass and the shading of the back of the assembly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-efficient two-sided battery pack aims at solving the problem that two-sided battery pack's back generating efficiency needs to promote.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a high-efficiency bifacial battery assembly comprising:
the double-sided battery comprises a front glass substrate, a front antireflection film, a battery body, a back antireflection film, a back glass substrate and a buffer layer film, wherein the front glass substrate, the front antireflection film, the battery body, the back antireflection film and the back glass substrate are sequentially arranged, the buffer layer film is arranged between the front glass substrate and the front antireflection film and/or between the back glass substrate and the back antireflection film, and the refractive index of the buffer layer film is between that of the front glass substrate and that of the front antireflection film; and
the frame, be provided with the mounting groove on the frame, two-sided battery sets up in the mounting groove.
In one possible implementation, the buffer layer film is a silicon dioxide close-packed film.
In one possible implementation mode, the surface layer refractive index of the buffer layer film is between 1.40 and 1.50, and the thickness is between 50 and 90 mm.
In a possible implementation mode, the refractive indexes of the surface layers of the front antireflection film and the back antireflection film are between 1.20 and 1.28, and the thicknesses of the surface layers of the front antireflection film and the back antireflection film are between 90 and 135 mm.
In one possible implementation, the frame includes PMKD, intermediate junction portion and installation department, intermediate junction portion sets up perpendicularly PMKD is last, the installation department sets up the other end of intermediate junction portion, the mounting groove sets up one side of installation department, the mounting groove is on a parallel with PMKD sets up.
In a possible implementation manner, a fixed side plate extends from one side of the fixed bottom plate.
In one possible implementation, the edge of the fixed baseplate remote from the intermediate connection part is provided with a grounding hole for a mounting bolt.
In a possible implementation manner, an edge of the grounding hole close to the fixed bottom plate is of a notch structure.
In a possible implementation manner, a clamping pad is arranged in the mounting groove and made of silica gel, and the clamping pad is in interference fit with the double-sided battery.
The utility model provides a pair of high-efficient two-sided battery pack's beneficial effect lies in:
compared with the prior art, including double-sided battery and frame, double-sided battery is including the front glass base member that sets up in order, the front antireflection coating, the battery body, back antireflection coating and back glass base member, still be provided with the buffer layer membrane, the buffer layer membrane sets up between front glass base member and front antireflection coating, or the buffer layer membrane sets up between back glass base member and back antireflection coating, or the buffer layer membrane sets up simultaneously between front glass base member and front antireflection coating, between back glass base member and back antireflection coating, the refracting index of buffer layer membrane is between front glass base member and front antireflection coating, the buffer layer membrane can further improve the luminousness of front glass base member and back glass base member, between front glass base member and front antireflection coating, carry out the buffering of refracting index between each layer, and then be favorable to promoting double-sided battery's generating efficiency, simultaneously the stability of buffer layer membrane is higher than front antireflection coating and back antireflection coating, can effectually reduce the influence of external environment to the device, improve the weatherability of device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-efficiency double-sided battery assembly according to an embodiment of the present invention;
fig. 2 is a first schematic view of a front view structure of a frame according to an embodiment of the present invention;
fig. 3 is a schematic view of a second front view structure of a frame according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a frame according to an embodiment of the present invention.
In the figure: 1. a front glass substrate; 2. a front anti-reflective film; 3. a battery body; 4. a back side antireflection film; 5. a back glass substrate; 6. a buffer layer film; 7. fixing the bottom plate; 8. an intermediate connecting portion; 9. an installation part; 10. fixing the side plate; 11. a ground hole; 12. and (6) clamping the pad.
Detailed Description
In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, a specific embodiment of a high-efficiency double-sided battery assembly according to the present invention is described, which includes: the double-sided battery comprises a front glass substrate 1, a front antireflection film 2, a battery body 3, a back antireflection film 4, a back glass substrate 5 and a buffer layer film 6, wherein the front glass substrate 1, the front antireflection film 2, the battery body, the back antireflection film 4 and the back glass substrate 5 are sequentially arranged, and the buffer layer film 6 is arranged between the front glass substrate 1 and the front antireflection film 2 and/or between the back glass substrate 5 and the back antireflection film 4; be provided with the mounting groove on the frame, two-sided battery sets up in the mounting groove.
The utility model provides a pair of high-efficient two-sided battery pack, compared with the prior art, including two-sided battery and frame, two-sided battery is including the positive glass base member 1 that sets up in order, positive antireflection film 2, battery body 3, back antireflection film 4 and back glass base member 5, still be provided with buffer layer membrane 6, buffer layer membrane 6 sets up between positive glass base member 1 and positive antireflection film 2, or buffer layer membrane 6 sets up between back glass base member 5 and back antireflection film 4, or buffer layer membrane 6 sets up simultaneously between positive glass base member 1 and positive antireflection film 2, between back glass base member 5 and back antireflection film 4, buffer layer membrane 6's refracting index is between positive glass base member 1 and positive antireflection film 2, buffer layer membrane 6 can further improve the luminousness of positive glass base member 1 and back glass base member 5, between positive glass base member 1 and positive antireflection film 2, carry out the buffer layer of refracting index between back glass base member 5 and the back antireflection film 4, the refracting index is optimized between each layer, and then be favorable to promoting two-sided battery's generating efficiency, simultaneously, the stability is higher than positive antireflection film 2 and the back antireflection film 4, can reduce the effectual external world and wait the device influence.
Specifically, referring to fig. 1 to 4, the double-sided battery includes a double-sided battery and a frame, the double-sided battery includes a glass substrate, an antireflection film and a battery body 3, the glass substrate is provided with two groups, the double-sided battery is divided into a front glass substrate 1 and a back glass substrate 5 according to a setting direction, the antireflection film is provided with two groups, the double-sided battery is divided into a front antireflection film 2 and a back antireflection film 4 according to the setting direction, a buffer layer film 6 is provided between the front glass substrate 1 and the front antireflection film 2, or the buffer layer film 6 is provided between the back glass substrate 5 and the back antireflection film 4, or both the front glass substrate 1 and the front antireflection film 2 and between the back glass substrate 5 and the back antireflection film 4, a refractive index of the buffer layer film 6 is between the glass substrate and the antireflection film, so that a buffer effect of the refractive index can be achieved, the refractive index between each layer is optimized, and thus the power generation efficiency of the device is improved, and in addition, the stability of the buffer layer film 6 is higher than that the antireflection film, the influence of an external environment on the device can be effectively reduced, and the weather resistance of the device is improved; the frame is used for the fixed double-sided battery of installation, is provided with the mounting groove on the frame, and double-sided battery sets up in the mounting groove, and the frame is provided with four groups, and end to end encircles and sets up around double-sided battery, increases fixed stability.
As a specific embodiment of the high-efficiency double-sided battery module provided in the present invention, please refer to fig. 1, the buffer layer film 6 is a silicon dioxide close-packed film.
Specifically, referring to fig. 1, the buffer layer film 6 is made of silicon dioxide, and is consistent with a glass substrate material and has good compatibility, and the buffer layer film 6 is a silicon dioxide tightly-stacked film layer, so that the refractive index of the buffer layer film 6 is greater than that of the front antireflection film 2 and the back antireflection film 4, and the refractive indexes are buffered between the front glass substrate 1 and the front antireflection film 2 and between the back glass substrate 5 and the back antireflection film 4, so as to optimize the refractive indexes between layers, thereby being beneficial to improving the power generation efficiency of the double-sided battery and improving the stability of the device.
Referring to fig. 1, the surface refractive index of the buffer layer film 6 is 1.40-1.50, and the thickness is 50-90 mm.
Specifically, referring to fig. 1, the refractive index of the surface layer of the buffer layer film 6 is 1.40 to 1.50, the refractive index of the photovoltaic glass substrate is generally 1.52, and the refractive index of the surface layer of the buffer layer film 6 is smaller than the refractive index of the photovoltaic glass substrate, so that the refractive index between layers is optimized.
As a specific embodiment of the high-efficiency double-sided battery module provided by the present invention, please refer to fig. 1, the surface refractive index of the front antireflection film 2 and the back antireflection film 4 is between 1.20-1.28, and the thickness is between 90-135 mm.
Specifically, referring to fig. 1, the surface refractive index of the antireflection film is between 1.20 and 1.28, and the surface refractive index of the antireflection film is smaller than the surface refractive index of the buffer layer film 6, so as to optimize the refractive index between the layers.
As a specific embodiment of a pair of high-efficient two-sided battery pack, please refer to fig. 1, fig. 2, the frame includes PMKD 7, intermediate junction portion 8 and installation department 9, and intermediate junction portion 8 sets up perpendicularly on PMKD 7, and installation department 9 sets up at the other end of intermediate junction portion 8, and the mounting groove sets up in one side of installation department 9, and the mounting groove is on a parallel with PMKD 7 setting.
Specifically, please refer to fig. 1 and 2, the frame includes a fixing bottom plate 7, an intermediate connecting portion 8 and an installation portion 9, which are sequentially disposed, the intermediate connecting portion 8 is vertically disposed on the fixing bottom plate 7, the fixing bottom plate 7 is horizontally disposed on the ground, the installation groove is disposed on one side of the installation portion 9, the installation groove is parallel to the fixing bottom plate 7, the double-sided battery is installed in the installation groove, the double-sided battery is parallel to the fixing bottom plate 7, and four sets of frames surround the double-sided battery.
As a specific embodiment of the high-efficiency double-sided battery assembly provided by the present invention, please refer to fig. 3 and 4, a fixing side plate 10 is extended and disposed on one side of the fixing bottom plate 7.
Specifically, please refer to fig. 3 and 4, a fixed side plate 10 is extended and arranged on one side of the fixed bottom plate 7, the fixed side plate 10 is convenient for fixing the frame, the double-sided battery is generally rectangular, the edges of the double-sided battery are two opposite long sides and two opposite short sides, the frame arranged on the short sides of the double-sided battery comprises the fixed side plate 10, the fixed side plate 10 is arranged towards the frame on the short side of the other side, the frame arranged on the long side of the double-sided battery can not be provided with the fixed side plate 10, and the shielding on the back of the double-sided battery is reduced.
Furthermore, the side frame of the fixed side plate 10 is not provided, and the length of the fixed bottom plate 7 is between 5 and 18 mm; the length of the fixed side plate 10 and the fixed bottom plate 7 is 5-21 mm, so that the shielding of the back of the double-sided battery is reduced.
As a specific embodiment of the high-efficient double-sided battery pack provided by the present invention, please refer to fig. 3 and 4, the edge of the fixing bottom plate 7 away from the intermediate connecting portion 8 is provided with the grounding hole 11 for mounting the bolt.
Specifically, referring to fig. 3 and 4, the edge of the fixing bottom plate 7 away from the intermediate connecting portion 8 is provided with a grounding hole 11, and a bolt is disposed in the grounding hole 11 to fix the device, so as to increase the stability of the device.
As a specific embodiment of the high-efficient two-sided battery pack provided by the utility model, please refer to fig. 3, fig. 4, the edge that grounding hole 11 is close to PMKD 7 is the opening structure.
Specifically, referring to fig. 3 and 4, the grounding hole 11 is an arc-shaped opening, the center of the circle is located in the grounding hole 11, the bolt penetrates into the grounding hole 11, and the grounding hole 11 limits the bolt to prevent the bolt from falling off.
As a specific embodiment of a pair of high-efficient two-sided battery pack, please refer to fig. 1, be provided with the card dress pad 12 in the mounting groove, clamp the pad 12 and be the silica gel material, card dress pad 12 and two-sided battery interference fit.
Specifically, referring to fig. 1, the clamping pad 12 is disposed in the mounting groove and along the inner wall of the mounting groove, the clamping pad 12 is made of silica gel, damage to the double-sided battery is avoided, the clamping pad is in interference fit with the double-sided battery, friction between the clamping pad 12 and the double-sided battery is increased, and mounting stability is improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A high efficiency, double-sided battery assembly, comprising:
the double-sided battery comprises a front glass substrate, a front antireflection film, a battery body, a back antireflection film, a back glass substrate and a buffer layer film, wherein the front glass substrate, the front antireflection film, the battery body, the back antireflection film and the back glass substrate are sequentially arranged, the buffer layer film is arranged between the front glass substrate and the front antireflection film and/or between the back glass substrate and the back antireflection film, and the refractive index of the buffer layer film is between that of the front glass substrate and that of the front antireflection film; and
the frame, be provided with the mounting groove on the frame, two-sided battery sets up in the mounting groove.
2. A high efficiency, double sided battery module as defined in claim 1 wherein said buffer film is a silica close-packed film.
3. A high efficiency double sided battery module as defined in claim 1, wherein said buffer film has a surface layer refractive index of between 1.40 and 1.50 and a thickness of between 50 and 90 mm.
4. A high efficiency double sided battery module as recited in claim 3, wherein said front side antireflection film and said back side antireflection film have a surface layer refractive index of between 1.20 and 1.28 and a thickness of between 90 and 135 mm.
5. The efficient double-sided battery pack according to claim 1, wherein the frame comprises a fixed base plate, an intermediate connecting portion and an installation portion, the intermediate connecting portion is vertically disposed on the fixed base plate, the installation portion is disposed at the other end of the intermediate connecting portion, the installation groove is disposed at one side of the installation portion, and the installation groove is disposed in parallel with the fixed base plate.
6. A high efficiency double sided battery pack as claimed in claim 5 wherein the stationary base plate is extended from one side thereof with a stationary side plate.
7. A high efficiency double sided battery pack as claimed in claim 6 wherein the edges of the mounting plate remote from the intermediate connection portions are provided with grounding holes for mounting bolts.
8. The high efficiency double sided battery pack of claim 7 wherein the grounding hole has a notch structure near the edge of the mounting plate.
9. The efficient double-sided battery pack according to claim 1, wherein a clamping pad is arranged in the mounting groove, the clamping pad is made of silica gel, and the clamping pad is in interference fit with the double-sided battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222235995.2U CN217881536U (en) | 2022-08-23 | 2022-08-23 | High-efficient two-sided battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222235995.2U CN217881536U (en) | 2022-08-23 | 2022-08-23 | High-efficient two-sided battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217881536U true CN217881536U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222235995.2U Active CN217881536U (en) | 2022-08-23 | 2022-08-23 | High-efficient two-sided battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN217881536U (en) |
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2022
- 2022-08-23 CN CN202222235995.2U patent/CN217881536U/en active Active
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