Round solar panel

Abstract

The utility model relates to a circular solar panel, which comprises a substrate and a plurality of BC solar cells, wherein the bottom surfaces of the BC solar cells are provided with solder strips; the substrate is circular, a plurality of longitudinally distributed square welding areas are arranged on the surface of one side of the substrate, and one or more rows of bonding pads for welding BC solar cells are arranged on the welding areas; the plurality of welding areas are divided into a middle layer located in the middle of the substrate and a plurality of edge layers located above and below the middle layer; the middle layer comprises a plurality of rows of bonding pads, and the plurality of rows of bonding pads are symmetrically arranged along the central axis of the substrate; the bonding pads contained in the plurality of edge layers are gradually reduced along the direction far away from the middle layer; by applying the structural design of the application, a circular solar panel with a high space utilization rate can be obtained, the circular solar panel is suitable for various circular application scenes, and the problem of low space utilization rate of a square solar panel can be well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar panels, and more specifically to a circular solar panel. Background Art

[0002] Solar cells are thin sheets of photovoltaic semiconductors that use sunlight to generate electricity directly. They are also called "solar chips" or "photovoltaic cells". As long as they are illuminated by light that meets certain illumination conditions, they can instantly output voltage and generate current in the presence of a circuit.

[0003] Most of the solar panels currently in use are square in shape, and their application is greatly restricted in scenarios where a circular shape is required. For example, when applied to a round watch surface, the square solar panel will have a relatively low space utilization rate, and a circular solar panel is needed to improve space utilization. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a circular solar panel in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A circular solar panel is constructed, comprising a substrate and a plurality of BC solar cells with welding strips on the bottom surfaces; the substrate is circular, and a plurality of longitudinally distributed square welding areas are arranged on one side surface of the substrate, and one or more rows of welding pads for welding the BC solar cells are arranged on the welding area; the plurality of welding areas are divided into an intermediate layer located in the middle of the substrate and a plurality of edge layers located above and below the intermediate layer; the intermediate layer contains a plurality of rows of welding pads, and the plurality of rows of welding pads are symmetrically arranged along the central axis of the substrate; in a direction away from the intermediate layer, the welding pads contained in the plurality of edge layers decrease step by step; the width of the welding area is an integer multiple of the width of the BC solar cell, and the sum of the two spacings from the two ends of the welding area to the edge of the substrate is less than the width value of one BC solar cell.

[0007] In the circular solar panel of the utility model, a control circuit mounting area for mounting a solar control circuit and a battery pack interface are arranged on the back of the substrate.

[0008] The circular solar panel of the utility model is characterized in that a protective film layer covering a plurality of welding areas is arranged on the surface of the substrate.

[0009] In the circular solar panel of the utility model, the BC solar cell sheet is mounted on the surface of the substrate by using the SMT mounting process.

[0010] The circular solar panel described in the utility model also includes a processing jig, which includes a support ring and a positioning frame. The edge of the support ring is provided with at least three limit columns distributed in a ring shape; the positioning frame is located above the support ring, and the positioning frame is provided with positioning grooves corresponding to the welding areas one by one.

[0011] The circular solar panel of the utility model, wherein the positioning frame is provided with a positioning hole for the limiting column to pass through.

[0012] In the circular solar panel of the utility model, the limiting posts are iron pieces, and the positioning frame is provided with magnets for adsorbing the limiting posts.

[0013] The beneficial effect of the utility model is that by applying the structural design of the present application, a circular solar panel with high space utilization can be obtained, which is suitable for various circular application scenarios and can better solve the problem of low space utilization of square solar panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0015] Figure 1 This is a schematic diagram of the front structure of a circular solar panel in a preferred embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the back structure of a circular solar panel in a preferred embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the processing steps of a circular solar panel according to a preferred embodiment of the utility model;

[0018] Figure 4 It is a cross-sectional view of a circular solar panel processing jig according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be combined with the technical solution in the embodiments of the utility model for a clear and complete description. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The circular solar panel of the preferred embodiment of the utility model is as follows Figure 1 See also Figure 2-Figure 4 , including a substrate 1 and a plurality of BC solar cells 2 with welding strips on the bottom surface; the substrate 1 is circular, and a plurality of square welding areas distributed longitudinally are arranged on one side surface of the substrate, and one or more rows of welding pads for welding the BC solar cells 2 are arranged on the welding area; the plurality of welding areas are divided into an intermediate layer 100 located in the middle of the substrate and a plurality of edge layers 101 located above and below the intermediate layer; the intermediate layer 100 includes a plurality of rows of welding pads, and the plurality of rows of welding pads are symmetrically arranged along the central axis of the substrate 1; in a direction away from the intermediate layer, the welding pads included in the plurality of edge layers 101 decrease step by step; the width of the welding area is an integer multiple of the width of the BC solar cell, and the sum of the two spacings from the two ends of the welding area to the edge of the substrate is less than the width value of a BC solar cell; by applying the structural design of the present application, a circular solar panel with high space utilization can be obtained, which is suitable for various circular application scenarios and can better solve the problem of low space utilization of square solar panels.

[0021] Preferably, a control circuit mounting area 11 for mounting a solar control circuit and a battery pack interface 12 are provided on the back side of the substrate 1; the control circuit mounting area 11 and the battery pack interface 12 are used for mounting a solar control circuit and a battery pack, respectively; adopting this design, an independent solar energy product can be formed, which can be directly applied to various products when in use.

[0022] Preferably, a protective film layer covering a plurality of welding areas is provided on the surface of the substrate 1. The protective film layer not only plays a role in waterproof and dustproof protection, but also plays a role in anti-scratch protection.

[0023] Preferably, the BC solar cell sheets are mounted on the surface of the substrate using the SMT mounting process. More specifically, during processing, the entire panel of BC solar cell sheets is first cut into small pieces by a laser scribing machine and then mounted on the welding area of ​​the substrate.

[0024] Preferably, a processing jig is further included, the processing jig includes a support ring 30 and a positioning frame 31, the edge of the support ring 30 is provided with at least three limiting columns 300 in an annular distribution; the positioning frame 31 is located above the support ring 30, the positioning frame 31 is provided with positioning slots 310 corresponding to the welding areas one by one, the positioning frame 31 is provided with positioning holes 311 for the limiting columns to pass through, the limiting columns 300 are iron parts, and the positioning frame 31 is provided with magnets 312 for adsorbing the limiting columns;

[0025] During patching, the substrate 1 is placed on the support ring 30 and positioned by a plurality of limiting posts 300. Then the positioning frame 31 is placed on the substrate 1. The limiting posts 300 pass through the positioning holes 311. The magnets 312 adsorb and fix the limiting posts 300. During patching, a robot or manual operation is used to place the BC solar cell sheets into the corresponding positioning grooves. The processing efficiency is high and the product consistency is good.

[0026] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A circular solar panel, characterized in that: It comprises a substrate and a plurality of BC solar cells with welding strips on the bottom surface; the substrate is circular, and a plurality of longitudinally distributed square welding areas are arranged on one side surface of the substrate, and one or more rows of welding pads for welding the BC solar cells are arranged on the welding area; the plurality of welding areas are divided into an intermediate layer located in the middle of the substrate and a plurality of edge layers located above and below the intermediate layer; the intermediate layer contains a plurality of rows of welding pads, and the plurality of rows of welding pads are symmetrically arranged along the central axis of the substrate; in a direction away from the intermediate layer, the welding pads contained in the plurality of edge layers decrease step by step; the width of the welding area is an integer multiple of the width of the BC solar cell, and the sum of the two spacings from the two ends of the welding area to the edge of the substrate is less than the width value of one BC solar cell.

2. The circular solar panel according to claim 1, characterized in that: The back side of the substrate is provided with a control circuit mounting area for mounting a solar control circuit and a battery pack interface.

3. The circular solar panel according to claim 1, characterized in that: A protective film layer covering a plurality of welding areas is arranged on the surface of the substrate.

4. The circular solar panel according to claim 1, characterized in that: The BC solar cell sheet is mounted on the surface of the substrate using the SMT mounting process.

5. The circular solar panel according to any one of claims 1 to 4, characterized in that: It also includes a processing jig, which includes a support ring and a positioning frame. The edge of the support ring is provided with at least three limit columns in a ring-shaped distribution; the positioning frame is located above the support ring, and the positioning frame is provided with positioning grooves corresponding to the welding areas one by one.

6. The circular solar panel according to claim 5, characterized in that: The positioning frame is provided with a positioning hole for the limiting column to pass through.

7. The circular solar panel according to claim 6, characterized in that: The limiting column is an iron piece, and the positioning frame is provided with a magnet for adsorbing the limiting column.

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