CN210142995U

CN210142995U - High-efficient PERC battery of alkali polishing

Info

Publication number: CN210142995U
Application number: CN201921280260.3U
Authority: CN
Inventors: 何飞; 徐小萍
Original assignee: Jiangsu Hongrun Photoelectric Technology Co Ltd
Current assignee: Jiangsu Hongrun Photoelectric Technology Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-03-13
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses an alkali polishing high-efficiency PERC battery in the technical field of batteries, which comprises a waterproof shell and a PERC battery main body, wherein the PERC battery main body is arranged in the waterproof shell, the outer wall of the PERC battery main body is wound with a cooling pipe, the outer wall of the left side of the waterproof shell is fixedly provided with a mounting shell, the left side of the mounting shell is uniformly provided with a first heat dissipation hole, and the mounting shell is internally provided with a heat extraction fan, the service life of the internal battery is ensured.

Description

High-efficient PERC battery of alkali polishing

Technical Field

The utility model relates to the technical field of batteries, specifically be a high-efficient PERC battery of alkali polishing.

Background

The PERC cell technology has obvious performance and cost advantages, application of a P-type solar-grade monocrystalline silicon wafer is promoted, in order to form a passivation film on the back surface of the PERC cell, the passivation film is processed by alkali polishing, and the conventional alkali-polished PERC cell has certain defects in use: the battery can produce after long-time work and have great heat, and the heat can't distribute away, leads to the battery fragile, the problem of energy storage inefficiency, also can not play fine waterproof simultaneously, causes the battery short circuit easily, for this reason, we propose a high-efficient PERC battery of alkali polishing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient PERC battery of alkali polishing 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: the utility model provides a high-efficient PERC battery of alkali polishing, includes waterproof case and PERC battery body, PERC battery body sets up in the waterproof case, PERC battery body outer wall winding is provided with the cooling tube, the waterproof case right side is all run through at the cooling tube both ends, the cooling tube outer wall evenly is provided with the heat conduction stick, the fixed cap that is provided with in PERC battery body top, set up on the cap with the opening that the electric utmost point post matches on the PERC battery body, and the fixed waterproof piece that is provided with of opening inner wall, the fixed installation shell that is provided with of waterproof case left side outer wall, louvre one has evenly been seted up in installation shell left side, be provided with the suction fan in the installation shell, the installation shell communicates through louvre two with waterproof case each other, installation shell left side inner wall is provided with the framework through the fix with screw.

Further, waterproof piece is including fixing the ring-shaped mounting spare at the opening inner wall, ring groove has been seted up to ring-shaped mounting spare top outer wall, and the ring groove intussuseption is filled with water-absorbent resin granule, ring groove notch department is provided with assorted annular lid, the multiunit through-hole has been seted up at ring-shaped lid top, the fixed sealing washer that is provided with in ring-shaped mounting spare inner wall bottom, ring-shaped mounting spare inner wall is provided with the sponge ring, and sealing washer inner wall and sponge ring inner wall all laminate mutually with the electric pole outer wall on the PERC battery main part.

Further, the left side and the right side of the bottom of the PERC battery main body are both fixedly provided with positioning blocks, and the inner wall of the bottom of the waterproof shell is provided with a positioning groove matched with the positioning blocks.

Further, the gauze comprises eight groups of gauze, and every group gauze all sets up to double-deck gauze, the gauze passes through the drawing pin to be fixed at the framework inner wall.

Furthermore, the first heat dissipation holes are downward-inclined through holes, and the number of the first heat dissipation holes is four.

Further, waterproof shell top outer wall and cap bottom outer wall all are provided with the assorted chimb, and top chimb bottom is provided with the sealing strip, and the seal groove that matches with the sealing strip is seted up at the top of bottom chimb, bolt fixed connection on waterproof shell and cap pass through the chimb.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts the structure that the cooling pipe and the heat conducting rod are connected with the cooling pipe through the external equipment, the cooling liquid is injected into the cooling pipe, the heat generated during the work of the battery is taken away by the flowing of the cooling liquid, meanwhile, the heat conducting rod has excellent heat conducting performance, the heat of the internal heat is transferred to the cooling liquid in the cooling pipe, the heat radiating efficiency and the heat radiating quality are improved, meanwhile, the exhaust fan is arranged to accelerate the flowing of the internal air, the heat can not be gathered, the high-efficiency heat radiation is further realized, the service life of the internal battery is ensured, meanwhile, the waterproof part is arranged, the adopted water-absorbing resin particles and the sponge ring are arranged, the external water is absorbed when passing through the connection part of the through hole and the motor column of the PERC battery main body, the water can not enter the inside of the waterproof shell, the first heat radiating hole which is provided with downward inclination is provided to play a certain waterproof role, in addition, the integral waterproof performance is high, and the heat dissipation performance is good.

Drawings

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

fig. 2 is a schematic structural view of the waterproof member of the present invention.

In the figure: 1. a waterproof shell; 2. a PERC cell body; 3. positioning blocks; 4. a cooling tube; 5. a heat conducting rod; 6. a shell cover; 7. a port; 8. a waterproof member; 81. an annular mounting member; 82. an annular groove; 83. water-absorbent resin particles; 84. an annular cover; 85. a seal ring; 86. a sponge ring; 9. mounting a shell; 10. a first heat dissipation hole; 11. a frame body; 12. a screen; 13. an exhaust fan; 14. and a second heat dissipation hole.

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. 1-2, the present invention provides a technical solution: an alkali polishing high-efficiency PERC battery, please refer to FIG. 1, comprising a waterproof case 1 and a PERC battery main body 2, wherein the waterproof case 1 and the PERC battery main body 2 are both the prior art, and are not included in the technical features of the present invention, and are not specifically described herein, the electrical components of the present invention can be connected with an external power source through wires, and can also be connected with the power output end of the PERC battery main body 2 through wires, and the selection is performed according to the actual situation;

referring to fig. 1, a PERC battery body 2 is disposed in a waterproof case 1, a cooling tube 4 is wound around the outer wall of the PERC battery body 2, the cooling tube 4 can be fixed to the outer wall of the PERC battery body 2 by a U-shaped member and screws, or can be mounted by other fixing members, both ends of the cooling tube 4 penetrate through the right side of the waterproof case 1, specifically, the top end of the cooling tube 4 penetrates through the top of the right side of the waterproof case 1, the bottom end of the cooling tube 4 penetrates through the bottom of the right side of the waterproof case 1, the cooling tube 4 is used for connecting with external equipment to input cooling liquid into the cooling tube 4 when in use, heat conducting rods 5 are uniformly disposed on the outer wall of the cooling tube 4, the heat conducting rods 5 are disposed in the waterproof case 1, the heat conducting rods 5 can be made of aluminum alloy with good heat conducting performance, the cooling liquid flows in the cooling tube 4 to carry away heat generated when the PERC battery body 2 is used, the heat conducting, heat exchange is carried out, so that the cooling efficiency and quality are further improved;

referring to fig. 1, a case cover 6 is fixedly arranged on the top of the PERC battery body 2, a through hole 7 matched with the electrode post on the PERC battery body 2 is formed in the case cover 6, a waterproof piece 8 is fixedly arranged on the inner wall of the through hole 7, and the waterproof piece 8 prevents external water from entering the waterproof case 1 through the through hole 7 and the electrode post on the PERC battery body 2;

referring to fig. 1, a mounting shell 9 is fixedly arranged on the outer wall of the left side of a waterproof shell 1, a screw or bolt fixing mode can be adopted, heat dissipation holes 10 are uniformly formed in the left side of the mounting shell 9, heat extracted by a fan 13 can be conveniently discharged outwards, the fan 13 is arranged in the mounting shell 9, the mounting shell 9 and the waterproof shell 1 are communicated with each other through two heat dissipation holes 14, and the fan 13 extracts heat in the waterproof shell 1 outwards;

referring to fig. 1, a frame 11 is fixedly arranged on the inner wall of the left side of the mounting shell 9 through screws, a gauze 12 is arranged on the inner wall of the frame 11, the gauze 12 further plays a role in preventing water from entering the interior through a first heat dissipation hole 10, and also plays a role in preventing dust.

As shown in fig. 2: the waterproof part 8 comprises an annular mounting part 81 fixed on the inner wall of the through hole 7 and can adopt a welding or screw fixing mode, an annular groove 82 is formed in the outer wall of the top of the annular mounting part 81, water-absorbent resin particles 83 are filled in the annular groove 82, the water-absorbent resin particles 83 adopt high-molecular water-absorbent resin particles, the high-water-absorbent resin is a functional high-molecular material which contains strong hydrophilic groups and has a certain crosslinking degree and is developed in recent years, the high-molecular material can absorb water which is hundreds to thousands of times of the self weight, is nontoxic, harmless and pollution-free, has strong water absorption capacity and high water retention capacity, a high-molecular polymer obtained by acrylic acid polymerization, has high water retention capacity and balance of absorption capacity under high load, the absorbed water cannot be extruded by a simple physical method and can release and absorb water repeatedly, a matched annular cover 84 is arranged at the notch of the annular groove 82, the top of the annular cover 84 is provided with a plurality of groups of through holes, so that the entering water can downwards enter the annular groove 82, the annular cover 84 can be fixed at the notch of the annular groove 82 in a screw fixing mode, the bottom of the inner wall of the annular mounting part 81 is fixedly provided with a sealing ring 85, and a polyethylene sealing ring has the characteristics of high temperature resistance, wear resistance and the like, so that the service life of the polyethylene sealing ring is prolonged, the inner wall of the annular mounting part 81 is provided with a sponge ring 86, and the inner wall of the sealing ring 85 and the inner wall of the sponge ring 86 are both attached to the outer wall of the electric pole on the PERC battery main body 2, so that the external water flow is further prevented from flowing into the inner cavity of the;

as shown in fig. 1: the left side and the right side of the bottom of the PERC battery main body 2 are fixedly provided with the positioning blocks 3, the inner wall of the bottom of the waterproof shell 1 is provided with the positioning grooves matched with the positioning blocks 3, and the positioning blocks 3 and the positioning grooves are matched to play a certain role in positioning and fixing the PERC battery main body 2, so that the PERC battery main body 2 is not in direct contact with the waterproof shell 1, the heat dissipation area is increased, and air circulation is facilitated;

as shown in fig. 1: the gauze 12 consists of eight groups of gauze, each group of gauze is provided with double-layer gauze, the water resistance is further improved, and the gauze 12 is fixed on the inner wall of the frame body 11 through drawing pins;

as shown in fig. 1: the first heat dissipation holes 10 are downward-inclined through holes, specifically, the left ends of the first heat dissipation holes 10 are downward inclined, the design further improves the waterproof performance, so that external liquid cannot easily enter the interior, the number of the first heat dissipation holes 10 is four, and the number of the groups can be selected according to actual conditions;

as shown in fig. 1: 1 top outer wall of buckler and 6 bottom outer walls of cap all are provided with assorted chimb, chimb and

buckler

1 or 6 structures as integrated into one piece, and top chimb bottom is provided with the sealing strip, the seal groove that matches with the sealing strip is seted up at the top of bottom chimb, the leakproofness of assurance buckler 1 and the 6 junctions of cap that adopt sealing strip and seal groove, buckler 1 and cap 6 pass through the bolt fixed connection on the chimb, also can adopt other fixed parts to fix, select according to actual conditions.

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. An alkali polishing high-efficiency PERC battery, comprising a waterproof case (1) and a PERC battery main body (2), wherein the PERC battery main body (2) is arranged in the waterproof case (1), and is characterized in that: the outer wall of the PERC battery main body (2) is wound with a cooling pipe (4), two ends of the cooling pipe (4) penetrate through the right side of the waterproof case (1), the outer wall of the cooling pipe (4) is uniformly provided with heat conducting rods (5), the top of the PERC battery main body (2) is fixedly provided with a case cover (6), the case cover (6) is provided with an opening (7) matched with an electric pole on the PERC battery main body (2), the inner wall of the opening (7) is fixedly provided with a waterproof part (8), the outer wall of the left side of the waterproof case (1) is fixedly provided with a mounting case (9), the left side of the mounting case (9) is uniformly provided with a first heat dissipation hole (10), the mounting case (9) is internally provided with a suction fan (13), the mounting case (9) and the waterproof case (1) are mutually communicated through a second heat dissipation hole (14), the inner wall of the left, and the inner wall of the frame body (11) is provided with a gauze (12).

2. The alkaline-polished high-efficiency PERC cell as claimed in claim 1, wherein: waterproof part (8) are including fixing annular mounting spare (81) at opening (7) inner wall, annular groove (82) have been seted up to annular mounting spare (81) top outer wall, and the intussuseption of annular groove (82) is filled with water-absorbing resin granule (83), annular groove (82) notch department is provided with assorted annular lid (84), multiunit through-hole has been seted up at annular lid (84) top, fixed sealing washer (85) that is provided with in annular mounting spare (81) inner wall bottom, annular mounting spare (81) inner wall is provided with sponge ring (86), and sealing washer (85) inner wall and sponge ring (86) inner wall all laminate mutually with the electric pole outer wall on PERC battery main part (2).

3. The alkaline-polished high-efficiency PERC cell as claimed in claim 1, wherein: the battery is characterized in that positioning blocks (3) are fixedly arranged on the left side and the right side of the bottom of the PERC battery main body (2), and positioning grooves matched with the positioning blocks (3) are formed in the inner wall of the bottom of the waterproof shell (1).

4. The alkaline-polished high-efficiency PERC cell as claimed in claim 1, wherein: gauze (12) comprise eight groups of gauze, and every gauze of group all sets up to double-deck gauze, gauze (12) are fixed at framework (11) inner wall through the drawing pin.

5. The alkaline-polished high-efficiency PERC cell as claimed in claim 1, wherein: the first heat dissipation holes (10) are downward-inclined through holes, and the number of the first heat dissipation holes (10) is four.

6. The alkaline-polished high-efficiency PERC cell as claimed in claim 1, wherein: waterproof shell (1) top outer wall and cap (6) bottom outer wall all are provided with the assorted chimb, and top chimb bottom is provided with the sealing strip, and the seal groove that matches with the sealing strip is seted up at the top of bottom chimb, bolt fixed connection on waterproof shell (1) and cap (6) pass through the chimb.