An assembly with drainage and dust removal functions

Abstract

This application relates to a photovoltaic module with drainage and dust removal functions, particularly a module with built-in drainage and dust removal capabilities. It includes a frame, solar cells, and a glass cover. The frame consists of four side strips, the solar cells are encapsulated within the frame, and the glass cover covers the solar cells. The upper surface of the frame is higher than the upper surface of the glass cover. The module is characterized by further including multiple dust-proof blocks. By implementing the above technical solution, this application fixes dust-proof blocks at the inner corners of the frame. These dust-proof blocks are designed with drainage surfaces to connect the glass cover to the highest point of the corresponding inner corner of the frame. When the module is in an inclined state, falling rainwater flows to the lower edge of the frame's inner corner and exits the module through the drainage surfaces. The drainage surfaces reduce water flow resistance and increase water flow velocity, effectively flushing away accumulated dust along the lower edge, preventing dust accumulation, reducing the impact of shading caused by the accumulated dust, and to a certain extent reducing the probability of hot spots and increasing power generation.

Description

Technical Field

[0001] This application relates to a photovoltaic module for diverting and removing dust, and more particularly to a module with built-in drainage and dust removal functions. Background Technology

[0002] Many photovoltaic power stations in Xinjiang cover large areas and face harsh natural environments with frequent sandstorms. Because the inner corners of the module frames are right angles, when rainfall is light, rainwater slowly slides off the glass cover on the module. The inner corners of the frame hinder the sliding of rainwater and dust, causing them to accumulate and form dust bands along the bottom edge of the module. This results in shading, affecting the module's output, and prolonged shading can also cause hot spots on the module, ultimately damaging it.

[0003] According to statistics, the dust or mud accumulation bands at the bottom edge of the components are mostly trapezoidal or triangular. This is because most components are tilted for a long time after installation, and the corner at the bottom edge becomes the lowest point of the entire component, resulting in dust accumulation. Summary of the Invention

[0004] The purpose of this application is to propose a component with built-in drainage and dust removal function to reduce dust accumulation in the inner corners of the frame.

[0005] This application is implemented as follows: A component with built-in drainage and dust removal functions includes a frame, battery cells, and a glass cover; the frame is composed of four side strips, the battery cells are encapsulated inside the frame, and the glass cover is matched and covers the battery cells, with the upper end face of the frame higher than the upper end face of the glass cover; characterized in that: it also includes multiple dustproof blocks, with one dustproof block fixed at the inner corner of each frame, and the dustproof block is provided with a drainage surface connecting the glass cover to the highest point of the corresponding inner corner of the frame, and the projection of the dustproof block vertically onto the surface where the battery cells are located is outside the battery cell coverage surface; the dustproof block is a right-angled tetrahedron or a triangular truncated pyramid.

[0006] Furthermore, the frame is composed of four side strips, and the inner corners of the frame are right angles; the dustproof block is a right-angled tetrahedron; the bottom surface of the dustproof block is glued and fixed to the upper surface of the glass cover plate, and the two sides of the dustproof block are respectively attached to the inner end surfaces of the two side strips that form the inner corners of the corresponding frame, and the highest point of the inclined surface of the dustproof block is located at the highest point of the inner corner of the corresponding frame.

[0007] Furthermore, the inclined surface of the dustproof block is a drainage surface, and a hydrophobic layer is provided on the drainage surface.

[0008] Furthermore, the frame consists of four side strips, and the inner corners of the frame are right angles; the dustproof block is a triangular truncated pyramid; the larger bottom surface of the dustproof block is glued and fixed to the upper surface of the glass cover plate, the smaller top surface of the dustproof block is flush with the highest point of the inner corner of the frame, and the two sides of the dustproof block are respectively attached to the inner end surfaces of the two side strips that make up the corresponding inner corners of the frame.

[0009] Furthermore, the side of the dustproof block that does not directly contact the edge strip is the drainage surface, and a hydrophobic layer is provided on the drainage surface.

[0010] Furthermore, the top surface of the dustproof block is covered with a water baffle corresponding to the edge strip position and the top surface of the dustproof block. A guide channel is provided in the middle of the water baffle. One end of the guide channel is connected to the hydrophilic layer, and the other end of the guide channel is connected to the outside of the outer frame.

[0011] Furthermore, at the intersection of the frame and the glass cover, the dustproof block has a cut layer.

[0012] By implementing the above technical solution, this application fixes a dustproof block at the inner corner of the frame. The dustproof block is designed with a drainage surface for connecting the glass cover to the highest point of the corresponding inner corner of the frame. When this application is in an inclined state, the falling rainwater flows to the inner corner of the lower edge of the frame and flows out of the component through the drainage surface. The drainage surface can reduce water flow resistance and increase water flow speed, which can effectively flush the dust accumulation strip at the lower edge, prevent dust accumulation, reduce the impact of the dust accumulation strip forming shadows, reduce the probability of hot spots to a certain extent, and increase power generation. Attached Figure Description

[0013] The specific structure of this application is given by the following figures and embodiments:

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application (only the dustproof block in one corner is shown).

[0015] Figure 2 This is an enlarged structural schematic diagram of Embodiment 1 of this application;

[0016] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application (only the dustproof block in one corner is shown);

[0017] Figure 4 This is an enlarged structural schematic diagram of Embodiment 2 of this application.

[0018] Legend: 1. Edge strip, 2. Battery cell, 3. Glass cover, 4. Dustproof block, 5. Hydrophobic layer, 6. Water baffle, 7. Channel, 8. Cut layer. Detailed Implementation

[0019] This application is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this application and the actual situation.

[0020] Example 1, as Figure 1 , 2As shown, a component with built-in drainage and dust removal functions includes a frame, a battery cell 2, and a glass cover 3. The frame is composed of four side strips 1, the battery cell 2 is encapsulated inside the frame, and the glass cover 3 covers the battery cell 2. The upper surface of the frame is higher than the upper surface of the glass cover 3. The component is characterized by further including multiple dustproof blocks 4, with one dustproof block 4 fixed at each inner corner of the frame. The dustproof block 4 has a drainage surface connecting the glass cover 3 to the highest point of the corresponding inner corner of the frame. The projection of the dustproof block 4 onto the surface where the battery cell 2 is located is outside the coverage surface of the battery cell 2. The frame is composed of four side strips 1, and the inner corners of the frame are right angles. The dustproof block 4 is a right-angled tetrahedron. The bottom surface of the dustproof block 4 is bonded and fixed to the upper surface of the glass cover 3, and the two sides of the dustproof block 4 are respectively attached to the inner end surfaces of the two side strips 1 that form the corresponding inner corners of the frame. The highest point of the inclined surface of the dustproof block 4 is located at the highest point of the corresponding inner corner of the frame.

[0021] Dust block 4 can be made of heat-resistant and UV-resistant materials, facilitating long-term operation under sunlight. Dust block 4 can also be made of insulating materials to avoid affecting the insulation properties of the components and prevent PID (Polydioxanone) phenomena; materials such as polytetrafluoroethylene (PTFE) can also be used.

[0022] The bottom surface of the right-angled tetrahedral dustproof block 4 is fixedly bonded to the glass cover plate 3, and the two sides can fit tightly against the inner end face of the corresponding edge strip 1, preventing dust accumulation. The right-angled tetrahedral dustproof block 4 is simple to manufacture and quick and easy to install. The projection of the dustproof block 4 onto the surface where the solar cell 2 is located is outside the coverage area of ​​the solar cell 2, and will not affect the normal light transmission of the solar cell 2.

[0023] During operation, Example 1 operates in an inclined state year-round, with one end higher and the other lower. Rainwater flows down the inclined glass cover 3 to the inner corner of the lower frame, where it flows out of the component through the drainage surface, forming a vent. The drainage surface reduces water flow resistance and increases water flow velocity, effectively flushing away the ash accumulation band along the lower edge, preventing ash accumulation and reducing the impact of shading caused by the ash accumulation band. This, to some extent, reduces the probability of hot spots and increases power generation.

[0024] As an optimization of Example 1, such as Figure 1 , 2 As shown, the inclined surface of the dustproof block 4 is a drainage surface, and a hydrophobic layer 5 is provided on the drainage surface. The hydrophobic layer 5 facilitates the collection of rainwater, while reducing falling friction, lowering water flow resistance, and increasing water flow velocity.

[0025] Example 2, as Figure 3 , 4As shown, the device comprises a frame, a battery cell 2, and a glass cover 3. The frame is composed of four side strips 1. The battery cell 2 is encapsulated within the frame, and the glass cover 3 covers the battery cell 2. The upper surface of the frame is higher than the upper surface of the glass cover 3. The device is characterized by further including multiple dustproof blocks 4. One dustproof block 4 is fixed at each inner corner of the frame. Each dustproof block 4 has a drainage surface connecting the glass cover 3 to the highest point of the corresponding inner corner of the frame. The projection of the dustproof block 4 onto the surface where the battery cell 2 is located is outside the coverage surface of the battery cell 2. The frame is composed of four side strips 1, and the inner corners of the frame are right angles. The dustproof block 4 is a triangular truncated pyramid. The larger bottom surface of the dustproof block 4 is bonded and fixed to the upper surface of the glass cover 3, and the smaller top surface of the dustproof block 4 is flush with the highest point of the inner corner of the frame. The two sides of the dustproof block 4 are respectively attached to the inner end surfaces of the two side strips 1 that form the corresponding inner corners of the frame.

[0026] The dustproof block 4 is made of the same material as in Example 1. The triangular truncated cone-shaped dustproof block 4 has a wider drainage channel on its drainage surface, making it easier for rainwater and dust to be discharged outside the frame, rather than remaining in the gap between the frame and the dustproof block 4.

[0027] As an optimization of Example 2, such as Figure 3 , 4 As shown, the side of the dustproof block 4 that does not directly contact the edge strip 1 is the drainage surface, and a hydrophobic layer 5 is provided on the drainage surface. The hydrophobic layer 5 facilitates the collection of rainwater, while reducing falling friction, lowering water flow resistance, and increasing water flow velocity.

[0028] As an optimization of Example 2, such as Figure 3 , 4 As shown, the top surface of the dustproof block 4 is covered with a water baffle 6 corresponding to the position of the edge strip 1 and the top surface of the dustproof block 4. A guide channel 7 is provided in the middle of the water baffle 6. One end of the guide channel 7 is connected to the hydrophilic layer, and the other end of the guide channel 7 is connected to the outside of the outer frame.

[0029] The top surface of the triangular frustum-shaped dustproof block 4 is easier to cover with the water baffle 6, which can be integrally manufactured with the dustproof block 4. Its processing cost is slightly higher than that of Example 1, but it can more efficiently discharge rainwater and dust to the outside of the frame, effectively avoiding the residue of rainwater and dust.

[0030] During operation, Embodiment 2 operates in a tilted state, with one end higher than the other. Rainwater flows down the tilted glass cover 3 to the inner corner of the lower frame, where it flows out of the component through the guide channels 7 on the hydrophilic layer, forming a drainage outlet. The guide channels 7 increase the water flow velocity, effectively flushing away the dust accumulation band along the lower edge, preventing dust accumulation and reducing the impact of the dust accumulation band forming shadows. More importantly, guided by the guide channels 7, the rainwater drains smoothly and along a fixed trajectory, preventing rainwater and dust from remaining in the gap between the frame and the dustproof block 4.

[0031] As an optimization common to both Example 1 and Example 2, such as Figures 1 to 4 As shown, at the intersection of the frame and the glass cover plate 3, the dustproof block 4 is provided with a cut layer 8. The cut layer 8 allows the dustproof block 4 to form an installation gap at the right angle position, which facilitates the adjustment of the installation position, makes the bottom surface of the dustproof block 4 firmly bonded to the glass cover plate 3, and makes the two sides of the dustproof block 4 fit tightly with the inner end face of the corresponding edge strip 1.

[0032] The above technical features constitute the preferred embodiment of this application, which has strong adaptability and the best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A component with built-in drainage and dust removal functions, comprising a frame, battery cells, and a glass cover; the frame is composed of four side strips, the battery cells are encapsulated within the frame, and the glass cover is fitted over the battery cells, with the upper surface of the frame higher than the upper surface of the glass cover; characterized in that: It also includes multiple dustproof blocks, with one dustproof block fixed at the inner corner of each frame. The dustproof block has a drainage surface that connects the glass cover to the highest point of the corresponding inner corner of the frame. The projection of the dustproof block onto the surface where the battery cell is located is outside the battery cell coverage surface. The frame is composed of four side strips, and the inner corners of the frame are right angles. The dustproof block is a right tetrahedron or a triangular truncated pyramid. When the dustproof block is a right-angled tetrahedron; the bottom surface of the dustproof block is bonded and fixed to the upper surface of the glass cover plate, and the two sides of the dustproof block are respectively attached to the inner end surfaces of the two edge strips that form the inner corners of the corresponding frame. The highest point of the inclined surface of the dustproof block is located at the highest point of the inner corner of the corresponding frame. When the dustproof block is a triangular truncated pyramid, the larger bottom surface of the dustproof block is bonded and fixed to the upper surface of the glass cover plate, the smaller top surface of the dustproof block is flush with the highest point of the inner corner of the frame, and the two sides of the dustproof block are respectively attached to the inner end surfaces of the two edge strips that form the inner corner of the corresponding frame.

2. The component with built-in drainage and ash removal function according to claim 1, characterized in that: The inclined surface of the dustproof block is the drainage surface, and a hydrophobic layer is provided on the drainage surface.

3. The component with built-in drainage and ash removal function according to claim 1, characterized in that: The side of the dustproof block that does not directly contact the edge strip is the drainage surface, and a hydrophobic layer is provided on the drainage surface.

4. A component with built-in drainage and ash removal function according to claim 3, characterized in that: The top surface of the dustproof block is covered with a water baffle corresponding to the edge strip position and the top surface of the dustproof block is covered with a water baffle. A guide channel is provided in the middle of the water baffle. One end of the guide channel is connected to the hydrophilic layer and the other end of the guide channel is connected to the outside of the outer frame.

5. A component with built-in drainage and ash removal function according to any one of claims 1 to 3, characterized in that: At the intersection of the frame and the glass cover, the dustproof block has a cut layer.

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