CN210609040U

CN210609040U - Tubular crystal silicon PERC battery

Info

Publication number: CN210609040U
Application number: CN201921280730.6U
Authority: CN
Inventors: 何飞; 徐小萍
Original assignee: Jiangsu Jingwang New Energy Technology Co Ltd
Current assignee: Jiangsu Jingwang New Energy Technology Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-22
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a tubular crystal silicon PERC battery in the technical field of tubular crystal silicon PERC batteries, the bottoms of the left and right side walls of the inner cavity of a first protective shell are fixedly provided with limit fixing plates, the inner cavity of a second protective shell is fixedly assembled with a second polysilicon battery plate, a dust filter screen is movably assembled between the two limit fixing plates, the bottoms of the two limit fixing plates are fixedly provided with a back plate, the bottom of the back plate is fixedly assembled with a hollow plate, the top of the hollow plate is fixedly provided with a plurality of groups of small fans, the outer walls of the first protective shell and the second protective shell are uniformly provided with radiating holes, the inner wall of the first protective shell is fixedly assembled with a heat-conducting substrate, the inner wall of the heat-conducting substrate is fixedly assembled with a copper heat-conducting fin, the inner wall of the copper heat-conducting fin is fixedly bonded with a heat-conducting silicone grease layer, the electric quantity conversion volume is high, can realize the heat quick conduction of panel simultaneously, improves the radiating effect.

Description

Tubular crystal silicon PERC battery

Technical Field

The utility model relates to a tubular crystal silicon PERC battery technical field specifically is a tubular crystal silicon PERC battery.

Background

PREC is passivation emitter and back battery technique, adopt laser doping technique to form selective PN junction, SE technique and PERC technique perfect adaptation, the absorption of ultraviolet light and infrared light in the battery to the sunlight has been strengthened, can promote the photoelectric conversion efficiency of about 0.3% battery, improve open circuit voltage, increase back of the body surface reflection, improve short-circuit current, thereby improve battery efficiency, but solar cell can produce a large amount of heats when using for a long time, need to realize cooling to solar cell, in order to ensure that it carries out the light absorption in normal temperature range, current tubular crystal silicon battery mostly relies on self thermal diffusivity to realize the heat dissipation, but the radiating effect is relatively poor, the circulation of air is low, make the heat on the solar cell can't in time dispel, for this reason, we propose a tubular crystal silicon PERC battery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tubular crystal silicon PERC battery to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tubular crystalline silicon PERC battery comprises a first protective shell, wherein a first polycrystalline silicon battery plate is fixedly assembled at the top of an inner cavity of the first protective shell, limiting fixing plates are fixedly arranged at the bottoms of the left and right side walls of the inner cavity of the first protective shell, a second protective shell is assembled on the limiting fixing plates in a sliding manner, a second polycrystalline silicon battery plate is fixedly assembled in the inner cavity of the second protective shell, a dust filter screen is movably assembled between two groups of limiting fixing plates, a back plate is fixedly arranged at the bottoms of the two groups of limiting fixing plates, a hollow plate is fixedly assembled at the bottom of the back plate, a plurality of groups of small fans are fixedly arranged at the top of the hollow plate, heat dissipation holes are uniformly formed in the outer walls of the first protective shell and the second protective shell, a heat conduction substrate is fixedly assembled on the inner wall of the first protective shell, and a copper heat conduction sheet, and a heat-conducting silicone grease layer is fixedly bonded on the inner wall of the copper heat-conducting fin.

Preferably, a heat conducting substrate is fixedly assembled on the inner wall of the second protective shell.

Preferably, an inserting channel is arranged between the first protective shell and the two groups of limiting fixing plates, and the size of the inserting channel is matched with that of the second protective shell.

Preferably, a heat conduction channel is arranged between the two groups of limiting fixing plates, the dust filter net is movably assembled in the heat conduction channel, and the size of the dust filter net is matched with that of the heat conduction channel.

Preferably, two sets of all seted up the joint groove on the relative one side lateral wall of spacing fixed plate, just all fixed joint piece that is provided with and joint groove looks adaptation on the outer wall of dirt filtrating screen.

Preferably, the heat dissipation holes are uniformly formed in the length direction of the first protection shell and the length direction of the second protection shell respectively, and the heat dissipation holes in the first protection shell and the heat dissipation holes in the second protection shell are in one-to-one correspondence.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has reasonable structure design, realizes the protection of the first polysilicon battery plate and the second polysilicon battery plate through the first protective shell and the second protective shell, meanwhile, the second polysilicon battery plate is inserted into the first protective shell, so that the battery plate can be accommodated, meanwhile, when the second polysilicon cell plate is extracted, more sunlight can be absorbed, the electric quantity conversion quantity is improved, meanwhile, the heat-conducting silicone grease layers on the first protective shell and the second protective shell can quickly transfer the heat on the battery plate to the copper heat-conducting sheet, further transmitted to the first protective shell and the second protective shell through the heat conducting substrate, and finally accelerated by the heat dissipation holes, in addition, the heat on first polycrystalline silicon battery board and the second polycrystalline silicon battery board can be derived through heat conduction channel to small-size fan, can accelerate thermal scattering and disappearing, improves the radiating effect, and the dirt screen can improve the dustproof effect of panel simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of the present invention;

fig. 3 is a schematic view of a partial sectional structure of the first protective shell of the present invention.

In the figure: 1 first protective housing, 2 first polycrystalline silicon battery boards, 3 spacing fixed plates, 4 second protective housings, 5 second polycrystalline silicon battery boards, 6 dust filter nets, 7 backplates, 8 hollowed-out plates, 9 small-size fans, 10 heat dissipation holes, 11 heat conduction substrates, 12 copper heat conduction fins, 13 heat conduction silicone grease layers, 14 grafting channels, 15 heat conduction channels.

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, fig. 2 and fig. 3, the present invention provides a technical solution: a tubular crystalline silicon PERC battery comprises a first protective shell 1, a first polycrystalline silicon battery plate 2 is fixedly assembled at the top of an inner cavity of the first protective shell 1, limiting fixing plates 3 are fixedly arranged at the bottoms of the left side wall and the right side wall of the inner cavity of the first protective shell 1, a second protective shell 4 is assembled on the limiting fixing plates 3 in a sliding manner, a second polycrystalline silicon battery plate 5 is fixedly assembled in the inner cavity of the second protective shell 4, a dust filter screen 6 is movably assembled between the two groups of limiting fixing plates 3, a back plate 7 is fixedly arranged at the bottoms of the two groups of limiting fixing plates 3, a hollow plate 8 is fixedly assembled at the bottom of the back plate 7, a plurality of groups of small fans 9 are fixedly arranged at the top of the hollow plate 8, heat dissipation holes 10 are uniformly formed in the outer walls of the first protective shell 1 and the second protective shell 4, a heat conduction substrate 11 is fixedly assembled on the inner wall of, the inner wall of the copper heat conducting sheet 12 is fixedly bonded with a heat conducting silicone grease layer 13, the first polycrystalline silicon battery plate 2 and the second polycrystalline silicon battery plate 5 are protected by the first protective shell 1 and the second protective shell 4, the second polycrystalline silicon battery plate 5 is inserted into the first protective shell 1, the battery plates can be stored, more sunlight can be absorbed when the second polycrystalline silicon battery plate 5 is drawn out, the electric quantity conversion quantity is improved, meanwhile, the heat conducting silicone grease layer 13 on the first protective shell 1 and the second protective shell 4 can quickly transfer heat on the battery plates to the copper heat conducting sheet 12, further the heat conducting substrate 11 is transferred to the first protective shell 1 and the second protective shell 4, the heat dissipation is accelerated by the heat dissipation holes 10, in addition, the heat on the first polycrystalline silicon battery plate 2 and the second polycrystalline silicon battery plate 5 can be conducted out by the small fan 9 through the heat conducting channel 15, can accelerate thermal scattering and disappearing, improve the radiating effect, dirt screen 6 can improve the dustproof effect of panel simultaneously.

The heat conducting substrate 11 is fixedly assembled on the inner wall of the second protective shell 4, so that the second protective shell 4 and the first protective shell 1 have good heat conducting effect, and heat on the second polycrystalline silicon battery plate 5 can be conducted quickly;

referring to fig. 2, an insertion channel 14 is formed between the first protective shell 1 and the two sets of limiting fixing plates 3, and the size of the insertion channel 14 is matched with the size of the second protective shell 4, so that the second protective shell 4 can be movably inserted into the insertion channel 14, and the second polysilicon battery plate 5 can be conveniently accommodated;

referring to fig. 2, a heat conduction channel 15 is arranged between the two sets of limiting fixing plates 3, the dust filter 6 is movably assembled in the heat conduction channel 15, and the size of the dust filter 6 is matched with that of the heat conduction channel 15, so that the dustproof effect of the battery panel can be improved;

clamping grooves are formed in the side walls of the two groups of limiting fixing plates 3 on the opposite sides, clamping blocks matched with the clamping grooves are fixedly arranged on the outer walls of the dust filter screens 6, the dust filter screens 6 can be detached for cleaning after the dust filter screens 6 are used for a period of time, and then the dust filter screens are installed, so that the dust filter screens are convenient to detach on the premise of ensuring resource utilization;

the louvres 10 are evenly arranged along the length direction of the first protective shell 1 and the second protective shell 4 respectively, the louvres 10 in the first protective shell 1 and the second protective shell 4 correspond to one another, when the second polycrystalline silicon battery plate 5 is stored, the louvres in the second protective shell 4 and the first protective shell 1 correspond to one another, heat conduction can be accelerated, and the heat dissipation effect is improved.

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. A tubular crystalline silicon PERC battery, characterized in that: the solar cell panel comprises a first protection shell (1), wherein a first polycrystalline silicon cell panel (2) is fixedly assembled at the top of an inner cavity of the first protection shell (1), limiting fixing plates (3) are fixedly arranged at the bottoms of the left and right side walls of the inner cavity of the first protection shell (1), a second protection shell (4) is slidably assembled on the limiting fixing plates (3), a second polycrystalline silicon cell panel (5) is fixedly assembled in the inner cavity of the second protection shell (4), a dust filtering net (6) is movably assembled between the two groups of limiting fixing plates (3), a back plate (7) is fixedly arranged at the bottom of the two groups of limiting fixing plates (3), a hollowed plate (8) is fixedly assembled at the bottom of the back plate (7), a plurality of groups of small heat dissipation holes (9) are fixedly arranged at the top of the hollowed plate (8), and a plurality of small heat dissipation holes (10) are uniformly formed in the outer walls of the first protection, the inner wall of the first protective shell (1) is fixedly provided with a heat-conducting substrate (11), the inner wall of the heat-conducting substrate (11) is fixedly provided with a copper heat-conducting fin (12), and the inner wall of the copper heat-conducting fin (12) is fixedly bonded with a heat-conducting silicone grease layer (13).

2. The PERC cell of claim 1, wherein: and a heat conducting substrate (11) is fixedly assembled on the inner wall of the second protective shell (4).

3. The PERC cell of claim 1, wherein: an inserting channel (14) is arranged between the first protective shell (1) and the two groups of limiting fixing plates (3), and the size of the inserting channel (14) is matched with that of the second protective shell (4).

4. The PERC cell of claim 1, wherein: two sets of set up to heat conduction channel (15) between spacing fixed plate (3), just dust filter screen (6) activity assembly is in heat conduction channel (15), just the size of dust filter screen (6) and the size looks adaptation of heat conduction channel (15).

5. The PERC cell of claim 4, wherein: two sets of all seted up the joint groove on the relative one side lateral wall of spacing fixed plate (3), just all fixed joint piece that is provided with and joint groove looks adaptation on the outer wall of dirt filtrating screen (6).

6. The PERC cell of claim 1, wherein: the heat dissipation holes (10) are uniformly formed in the length direction of the first protection shell (1) and the length direction of the second protection shell (4) respectively, and the heat dissipation holes (10) in the first protection shell (1) and the second protection shell (4) are in one-to-one correspondence.