Novel wet flower basket

By designing a new type of wet-process flower basket with rotatable receiving wheels, the problem of scratches on silicon wafers during fixing at the clamping point was solved, enabling safe insertion and efficient production of silicon wafers.

CN223680071UActive Publication Date: 2025-12-16TIANJIN ZHONGHUAN PHOTOVOLTAIC TECH CO LTD
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Patent Information

Application Number
CN202423129776.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-12-16
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

The existing wet-process basket design with its locking points can easily scratch silicon wafers when fixing them, increasing the defect rate.

Method used

A novel wet-process flower basket is designed, which adopts a rotatable receiving wheel structure. The silicon wafer is inserted into the receiving chamber in a rolling manner, and the surface of the receiving wheel is provided with a flexible friction surface to reduce the risk of scratches.

Benefits of technology

It effectively reduces scratches on silicon wafers during the production process, significantly lowering the product defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel wet-process flower basket, which belongs to the technical field of photovoltaic cell manufacturing and comprises an upper bottom plate and a lower bottom plate, a flower basket rod is connected between the upper bottom plate and the lower bottom plate, so that the upper bottom plate, the lower bottom plate and the flower basket rod jointly form a silicon wafer accommodating bin, and a plurality of bearing wheels are rotatably connected onto the flower basket rod at equal intervals. The edges of the bearing wheels in the inner side direction of the containing bin are larger than the edges of the basket rods in the inner side direction of the containing bin so that the edges of the bearing wheels can bear the silicon wafers, and a limiting gap used for containing a single silicon wafer is formed between every two adjacent bearing wheels. According to the utility model, the basket teeth of the wet-process basket are set as the rotatable bearing wheels, so that the silicon wafers are inserted into the accommodating bins in a rolling manner, the scratch of the silicon wafers is effectively reduced, the damage of the silicon wafers in the production process is avoided, and the reject ratio of products is greatly reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic cell manufacturing technical field, especially, a kind of novel wet method flower basket. BACKGROUND

[0002] Wet method flower basket is a main bearing component used in the chemical solution reaction corrosion process of battery silicon wafer, mainly to place monocrystalline battery silicon wafer in wet method flower basket with slot, then carry out the corrosion of chemical solution.Currently, wet method flower basket tooth is slot type, uses at least two protruding clamping points to fix silicon wafer, for example, rectangular clamping point and triangular clamping point, but the way of using these protruding clamping points to fix silicon wafer has the risk of scratching when silicon wafer passes through clamping point, thereby leading to silicon wafer damage, and high silicon wafer defective rate.

[0003] Therefore, it is urgent to design a novel wet method flower basket to solve the above-mentioned problem of the risk of scratching when silicon wafer passes through clamping point. UTILITY MODEL CONTENT

[0004] To solve the technical problem of the risk of scratching when silicon wafer passes through clamping point mentioned in the background art, thereby leading to silicon wafer damage, a novel wet method flower basket is provided to solve the above problems.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the novel wet method flower basket of the utility model is as follows:

[0006] A novel wet method flower basket, comprising an upper bottom plate and a lower bottom plate, a basket rod is connected between the upper bottom plate and the lower bottom plate, so that the upper bottom plate, the lower bottom plate and the basket rod together form a containing bin for silicon wafer, a plurality of receiving wheels are rotatably connected on the basket rod at equal intervals, the edge of the receiving wheel in the inside direction of the containing bin is greater than the edge of the basket rod in the inside direction of the containing bin, so that the edge of the receiving wheel receives the silicon wafer, and a limiting gap for containing a single silicon wafer is provided between adjacent receiving wheels.

[0007] Further, a groove is formed on the basket rod, the size of the groove matches the size of the receiving wheel, a rotating rod is fixedly connected in the groove, and the rotating rod is rotatably connected with the receiving wheel, so that the receiving wheel is rotatably connected with the basket rod.

[0008] Further, the size of the groove matches the size of the receiving wheel, a rotating rod is rotatably connected in the groove, and the rotating rod is fixedly connected with the receiving wheel, so that the receiving wheel is rotatably connected with the basket rod.

[0009] Further, the distance between adjacent receiving wheels is 54.4mm.

[0010] Further, the diameter of the receiving wheel is 30mm.

[0011] Further, the opening direction of the groove is towards the inside of the containing bin.

[0012] Further, the top surface of the receiving wheel is provided with a flexible friction surface.

[0013] Further, the flexible friction surface is a uniformly distributed rubber convex point.

[0014] Further, the flexible friction surface is a rubber pattern surface.

[0015] The novel wet-process flower basket has the following advantages: the flower basket teeth of the wet-process flower basket are arranged as rotatable receiving wheels, so that the silicon wafer is inserted into the containing bin in a rolling manner, effectively reducing the scratch of the silicon wafer and avoiding the damage of the silicon wafer in the production process, and greatly reducing the product failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic view of the novel wet-process flower basket.

[0017] Figure 2 The figure is a structure of the flower basket rod.

[0018] Figure 3 The figure is a sectional view of the flower basket rod.

[0019] Marked in the figure: 1, upper bottom plate; 2, lower bottom plate; 3, flower basket rod; 301, groove; 302, rotating rod; 4, receiving wheel; 401, flexible friction surface; 5, silicon wafer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Those skilled in the art can understand that, although some embodiments herein include certain features rather than other features included in other embodiments, the combination of features of different embodiments means to be within the scope of the present application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0022] The following will be described with reference to the accompanying drawings Figure 1 to the accompanying drawings Figure 3 The novel wet-process flower basket of the present application is described.

[0023] The novel wet-process flower basket of the present application is described. Figure 1As shown, it comprises an upper bottom plate 1 and a lower bottom plate 2, and a flower basket rod 3 is connected between the upper bottom plate 1 and the lower bottom plate 2, so that the upper bottom plate 1, the lower bottom plate 2 and the flower basket rod 3 together constitute a containing bin of the silicon wafer 5, a plurality of receiving wheels 4 are rotationally connected on the flower basket rod 3 at equal intervals, the edge of the receiving wheel 4 in the inside direction of the containing bin is larger than the edge of the flower basket rod 3 in the inside direction of the containing bin, so that the edge of the receiving wheel 4 receives the silicon wafer 5, and a limiting gap for containing a single silicon wafer 5 is arranged between adjacent receiving wheels 4. Specifically, the silicon wafer 5 is inserted into the containing bin from the limiting gap between adjacent receiving wheels 4, and since the edge of the receiving wheel 4 in the inside direction of the containing bin is larger than the edge of the flower basket rod 3 in the inside direction of the containing bin, the silicon wafer 5 can take the part of the receiving wheel 4 protruding from the flower basket rod 3 as a support point, the silicon wafer 5 is in contact with the part of the receiving wheel 4 protruding from the flower basket rod 3, so that the receiving wheel 4 rotates and sends the silicon wafer 5 into the containing bin, effectively reducing the scratching of the silicon wafer 5.

[0024] As preferred, as shown in the drawings, Figure 2 and Figure 3 As shown, a groove 301 is formed on the flower basket rod 3, the size of the groove 301 matches the size of the receiving wheel 4, a rotating rod 302 is fixedly connected in the groove 301, and the rotating rod 302 is rotationally connected with the receiving wheel 4, so that the receiving wheel 4 is rotationally connected with the flower basket rod 3.

[0025] In another specific embodiment, in order to rotationally connect the receiving wheel 4 on the flower basket rod 3, the structure is arranged as follows: a groove 301 is formed on the flower basket rod 3, the size of the groove 301 matches the size of the receiving wheel 4, a rotating rod 302 is rotationally connected in the groove 301, and the rotating rod 302 is fixedly connected with the receiving wheel 4, so that the receiving wheel 4 is rotationally connected with the flower basket rod 3.

[0026] At the same time, it can be understood that, in order to further improve the rotation smoothness of the receiving wheel 4, the above two ways can be combined, that is, the rotating rod 302 is rotationally connected in the groove 301, and the rotating rod 302 is rotationally connected with the receiving wheel 4, so that the receiving wheel 4 is rotationally connected with the flower basket rod 3.

[0027] As preferred, in a specific embodiment, the distance between adjacent receiving wheels 4 is 54.4mm, so as to ensure the insertion space of the silicon wafer 5.

[0028] As preferred, in a specific embodiment, the diameter of the receiving wheel 4 is 30mm, so as to ensure that the receiving wheel 4 stably receives the silicon wafer 5.

[0029] As preferred, the opening direction of the groove 301 is towards the inside of the containing bin, so that part of the structure of the receiving wheel 4 protrudes from the flower basket rod 3, thereby receiving the silicon wafer 5.

[0030] As preferred, a flexible friction surface 401 is formed on the top surface of the receiving wheel 4.

[0031] Optionally, the flexible friction surface 401 is a uniform rubber convex point, the silicon wafer 5 contacts the rubber convex point, the friction between the silicon wafer 5 and the supporting wheel 4 is improved, and the silicon wafer 5 is rolled into the accommodating cavity.

[0032] Optionally, the flexible friction surface 401 is a rubber pattern surface, the silicon wafer 5 contacts the rubber pattern, the friction between the silicon wafer 5 and the supporting wheel 4 is improved, and the silicon wafer 5 is rolled into the accommodating cavity.

[0033] The flower basket tooth of the wet method flower basket is arranged as the rotatable supporting wheel 4, the silicon wafer 5 is inserted into the accommodating cavity in a rolling mode, the silicon wafer 5 is effectively prevented from being scratched, the damage of the silicon wafer 5 in the production process is avoided, and the product failure rate is greatly reduced.

[0034] Obviously, the above embodiment of the utility model is merely an example for clearly illustrating the utility model, and is not a limitation on the implementation mode of the utility model. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the implementation modes are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A novel wet-process flower basket, characterized in that, It includes an upper base plate and a lower base plate, and a basket rod connects the upper base plate and the lower base plate so that the upper base plate, the lower base plate and the basket rod together form a silicon wafer receiving compartment. Multiple receiving wheels are equidistantly rotatably connected to the basket rod. The edge of the receiving wheel in the direction of the receiving compartment is larger than the edge of the basket rod in the direction of the receiving compartment so that the edge of the receiving wheel can receive the silicon wafer. A limiting gap is provided between adjacent receiving wheels for receiving a single silicon wafer.

2. The novel wet-process flower basket according to claim 1, characterized in that, The basket handle has a groove, the size of which matches the size of the receiving wheel. A rotating rod is fixedly connected inside the groove, and the rotating rod is rotatably connected to the receiving wheel so that the receiving wheel is rotatably connected to the basket handle.

3. The novel wet-process flower basket according to claim 1, characterized in that, The basket handle has a groove, the size of which matches the size of the receiving wheel. A rotating rod is rotatably connected inside the groove, and the rotating rod is fixedly connected to the receiving wheel so that the receiving wheel and the basket handle can be rotatably connected.

4. The novel wet-process flower basket according to claim 2 or 3, characterized in that, The distance between adjacent receiving wheels is 54.4 mm.

5. The novel wet-process flower basket according to claim 2 or 3, characterized in that, The diameter of the receiving wheel is 30mm.

6. The novel wet-process flower basket according to claim 2, characterized in that, The opening of the groove faces inward toward the inside of the receiving compartment.

7. The novel wet-process flower basket according to claim 1, characterized in that, The top surface of the receiving wheel is provided with a flexible friction surface.

8. The novel wet-process flower basket according to claim 7, characterized in that, The flexible friction surface consists of evenly distributed rubber protrusions.

9. The novel wet-process flower basket according to claim 7, characterized in that, The flexible friction surface is a rubber-patterned surface.