Waterproof HJT-permeable battery piece

By employing waterproof and breathable cells and a multi-layer waterproof structure in HJT solar cells, the problem of module performance degradation caused by moisture ingress has been solved, thereby improving the module's waterproofness and lifespan.

CN224178520UActive Publication Date: 2026-04-28ANHUI TIANDA NEW ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI TIANDA NEW ENERGY CO LTD
Filing Date
2025-03-25
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In humid environments, moisture can enter HJT modules through gaps in the fixed casing, causing the performance of the solar cells to degrade or even fail, resulting in a short lifespan.

Method used

The unit is waterproof and breathable, including a first waterproof strip and a second waterproof strip that are attached to the positioning frame. It is installed on the lower fixed frame with the battery cell via a connecting seat, and is attached to the waterproof strip via the upper fixed frame, forming a multi-layer waterproof structure that confines the battery cell and improves waterproofness.

Benefits of technology

It effectively prevents moisture from entering, thus improving the service life and performance stability of HJT components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof permeable HJT battery piece, and relates to the field of HJT battery pieces. The waterproof and permeable HJT battery piece comprises a plurality of battery pieces and a plurality of waterproof and permeable units, wherein an upper fixing frame and a lower fixing frame are respectively arranged on two sides of each battery piece. According to the waterproof HJT-permeable battery piece, the connecting seats are correspondingly placed on the lower fixing frame, meanwhile, the connecting seats are connected with the corresponding first waterproof strips and second waterproof strips in an inserted mode, then the first waterproof strips and the second waterproof strips are connected with the connecting seats, and the positioning frame is limited through the first waterproof strips and the second waterproof strips; at the moment, the upper fixing frame is attached to the first waterproof strip and the second waterproof strip to limit the positioning frame, and under the action of the first waterproof strip and the second waterproof strip, the waterproof performance of the side faces of the battery pieces is guaranteed, and the service life of the HJT assembly is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of HJT battery cell technology, specifically a waterproof and breathable HJT battery cell. Background Technology

[0002] HJT solar cells, or heterojunction solar cells, are an important type of photovoltaic cell technology.

[0003] HJT solar cells are hybrid solar cells made of crystalline silicon as the substrate and amorphous silicon thin film. Their PN junction is made of different semiconductor materials, unlike the homojunction cells of standard crystalline silicon solar cells.

[0004] During the processing of HJT solar cells, they need to be assembled to form photovoltaic panels. HJT modules are sensitive to moisture. When HJT modules are used in a relatively humid environment, moisture can enter the HJT modules through the gaps in the two fixed outer shells, causing the performance of the solar cell modules to degrade or even fail, resulting in low conversion efficiency and short service life. It is necessary to improve the overall moisture barrier properties of the modules. Therefore, we propose a waterproof and permeable HJT solar cell. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waterproof and breathable HJT solar cell, which solves the problem that when HJT modules are used in relatively humid environments, moisture can enter the HJT module through the gaps in the two fixed outer shells, leading to a decrease in the performance of the solar cell module or even failure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and permeable HJT battery cell, comprising multiple battery cells and multiple waterproof and permeable units, wherein an upper fixing frame and a lower fixing frame are respectively provided on both sides of each battery cell, and a positioning frame is installed between the upper fixing frame and the lower fixing frame, and the multiple battery cells are mounted on the positioning frame.

[0007] The waterproof and breathable unit includes multiple first waterproof strips and second waterproof strips, which are attached to the positioning frame.

[0008] Preferably, the top end face of the lower fixed frame is fixedly connected with multiple positioning blocks.

[0009] Preferably, the upper fixing frame is inserted into the outer peripheral wall of the positioning block.

[0010] Preferably, the top end face of the lower fixing frame is fitted with a plurality of connecting seats, and the connecting seats are fitted with the upper fixing frame.

[0011] Preferably, bolts are installed between the upper fixing frame, the lower fixing frame, and the multiple connecting seats.

[0012] Preferably, a plurality of plug strips are fixedly connected to the outer wall of the connector, and the plug strips are inserted into the inner wall of the positioning frame.

[0013] Preferably, a first connector and a second connector are inserted into the inner wall of the connector.

[0014] Preferably, the first connector is fixedly connected to the first waterproof strip, and the second connector is fixedly connected to the second waterproof strip.

[0015] This utility model discloses a waterproof and breathable HJT battery cell, which has the following beneficial effects:

[0016] This waterproof and breathable HJT solar cell is installed on a lower fixed frame, and then a positioning frame is installed on the lower fixed frame. A connecting seat is placed on the lower fixed frame and inserted into the corresponding first and second waterproof strips, connecting the first and second waterproof strips to the connecting seat. The first and second waterproof strips define the positioning frame, thus defining and protecting multiple solar cells. An upper fixed frame is then attached to the first and second waterproof strips, completing the definition of the positioning frame. The first and second waterproof strips ensure waterproofing of the sides of the solar cells, improving the lifespan of the HJT module. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning frame connection of this utility model;

[0020] Figure 3 This is a schematic diagram of the positioning frame structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly structure of the waterproof and breathable unit of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of the waterproof and breathable unit.

[0023] In the diagram: 1. Upper fixing frame; 101. Lower fixing frame; 102. Positioning block; 2. Battery cell; 3. Positioning frame; 4. Waterproof and breathable unit; 401. First waterproof strip; 402. Second waterproof strip; 403. First connector; 404. Second connector; 5. Connector; 501. Connecting strip. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This application provides a waterproof and breathable HJT solar cell, solving the problem that when HJT modules are used in relatively humid environments, moisture can enter the HJT module through the gaps in the side fixing shells, leading to a decrease in module performance or even failure. This is achieved by mounting the solar cell 2 on the lower fixing frame 101, and then mounting the positioning frame 3 on the lower fixing frame 101. The connecting seat 5 is then placed on the lower fixing frame 101, and simultaneously inserted with the corresponding first waterproof strip 401 and second waterproof strip 402. This connects the first and second waterproof strips 401 and 402 to the connecting seat 5, thus defining the positioning frame 3 and protecting the multiple solar cells 2. The upper fixing frame 1 is then attached to the first and second waterproof strips 401 and 402, completing the definition of the positioning frame 3. The action of the first and second waterproof strips 401 and 402 ensures waterproofing of the sides of the solar cell 2, improving the service life of the HJT module.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model discloses a waterproof and breathable HJT battery cell.

[0028] According to the appendix Figure 1-5 As shown, the device includes multiple battery cells 2 and multiple waterproof and breathable units 4. An upper fixing frame 1 and a lower fixing frame 101 are respectively provided on both sides of the battery cell 2. The upper and lower fixing frames 101 protect the battery cell 2. A positioning frame 3 is installed between the upper and lower fixing frames 101, and the multiple battery cells 2 are mounted on the positioning frame 3. The positioning frame 3 is used to fix the battery cells 2.

[0029] The waterproof and breathable unit 4 includes multiple first waterproof strips 401 and second waterproof strips 402. The first waterproof strips 401 and second waterproof strips 402 are attached to the positioning frame 3. The battery cell 2 is installed on the lower fixed frame 101, and then the positioning frame 3 is installed on the lower fixed frame 101. At this time, the connecting seat 5 is placed on the lower fixed frame 101, and the connecting seat 5 is inserted with the corresponding first waterproof strip 401 and second waterproof strip 402, so that the first waterproof strip 401 and second waterproof strip 402 are connected to the connecting seat 5. The positioning frame 3 is limited by the first waterproof strips 401 and second waterproof strips 402, thereby limiting and protecting the multiple battery cells 2. At this time, the upper fixed frame 1 is attached to the first waterproof strips 401 and second waterproof strips 402 to complete the limitation of the positioning frame 3. Under the action of the first waterproof strips 401 and second waterproof strips 402, the waterproofing of the side of the battery cell 2 is guaranteed.

[0030] Multiple positioning blocks 102 are fixedly connected to the top end face of the lower fixed frame 101.

[0031] The upper fixed frame 1 is inserted into the outer peripheral wall of the positioning block 102. By inserting the upper fixed frame 1 into the positioning block 102, the connection between the upper fixed frame 1 and the lower fixed frame 101 is completed, ensuring that the connection between the upper fixed frame 1 and the lower fixed frame 101 is relatively stable.

[0032] Multiple connecting seats 5 are attached to the top end face of the lower fixed frame 101, and the connecting seats 5 are attached to the upper fixed frame 1.

[0033] Bolts are installed between the upper fixed frame 1, the lower fixed frame 101 and the multiple connecting seats 5. The upper fixed frame 1, the lower fixed frame 101 and the connecting seats 5 are fixed by the bolts, thereby limiting the positioning frame 3 and limiting the battery cell 2 on the positioning frame 3. The positioning frame 3 protects the battery cell 2.

[0034] Multiple connector strips 501 are fixedly connected to the outer wall of the connector 5. The connector strips 501 are inserted into the inner wall of the positioning frame 3. By inserting the connector strips 501 into the positioning frame 3, the multiple connectors 5 are fixed to the positioning frame 3.

[0035] The inner wall of the connector 5 is fitted with a first connector 403 and a second connector 404.

[0036] The first connector 403 is fixedly connected to the first waterproof strip 401, and the second connector 404 is fixedly connected to the second waterproof strip 402. By separating the first connector 403 and the second connector 404 from the connecting seat 5, the first waterproof strip 401 and the second waterproof strip 402 are defined. Under the action of the first waterproof strip 401 and the second waterproof strip 402, the positioning frame 3 is defined, thereby ensuring the definition of the battery cell 2 and completing the installation of the battery cell 2. At the same time, under the action of the first waterproof strip 401 and the second waterproof strip 402, the side of the battery cell 2 is waterproofed, thus protecting the battery cell 2.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof and breathable HJT battery cell, characterized in that, It includes multiple battery cells (2) and multiple waterproof and breathable units (4). The battery cells (2) are provided with an upper fixing frame (1) and a lower fixing frame (101) on both sides respectively. A positioning frame (3) is installed between the upper fixing frame (1) and the lower fixing frame (101). Multiple battery cells (2) are installed on the positioning frame (3) and the positioning frame (3) protects the battery cells (2). The waterproof and breathable unit (4) includes multiple first waterproof strips (401) and second waterproof strips (402), and the first waterproof strips (401) and second waterproof strips (402) are attached to the positioning frame (3); The top end face of the lower fixed frame (101) is fitted with a plurality of connecting seats (5), and the connecting seats (5) are fitted with the upper fixed frame (1); Bolts are installed between the upper fixing frame (1), the lower fixing frame (101), and the multiple connecting seats (5); Multiple plug strips (501) are fixedly connected to the outer wall of the connecting seat (5), and the plug strips (501) are inserted into the inner wall of the positioning frame (3); The inner wall of the connector (5) is fitted with a first connector (403) and a second connector (404) to define the first waterproof strip (401) and the second waterproof strip (402).

2. The waterproof and breathable HJT battery cell according to claim 1, characterized in that, The top end face of the lower fixed frame (101) is fixedly connected to multiple positioning blocks (102).

3. The waterproof and breathable HJT battery cell according to claim 2, characterized in that, The upper fixed frame (1) is inserted into the outer peripheral wall of the positioning block (102).

4. The waterproof and breathable HJT battery cell according to claim 1, characterized in that, The first connector (403) is fixedly connected to the first waterproof strip (401), and the second connector (404) is fixedly connected to the second waterproof strip (402).