Solar cell diffusion quartz boat

By designing a quartz boat structure with a fixed plate, movable frame, and synchronization components, the problems of low ease of use of quartz boats and inaccurate silicon wafer spacing were solved, achieving uniform contact between silicon wafers and gas, and improving the diffusion effect and performance of solar cells.

CN224319849UActive Publication Date: 2026-06-02浙江硅石新能源有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江硅石新能源有限公司
Filing Date
2025-06-06
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing quartz boats are not very convenient to use and the silicon wafer spacing cannot be precisely controlled, resulting in uneven contact between the silicon wafer and the gas during the diffusion process, which affects the performance of solar cells.

Method used

A quartz boat structure including a fixed plate, a movable frame, a positioning plate, and a synchronization component was designed. Through the cooperation of the operating screw and the folding frame, the silicon wafers can be conveniently installed and evenly spaced, ensuring uniform contact between the silicon wafers and the gas.

Benefits of technology

This improved the ease of silicon wafer installation and the effectiveness of the diffusion process, thereby enhancing the performance of solar cells.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to quartz boat technical field, concretely relates to a solar cell diffusion quartz boat, including the boat body, the left and right inside boat body all are fixedly connected with a plurality of fixed plate, the inside movable mounting of boat body has a plurality of movable frame, the both ends of a plurality of movable frame and located fixed plate's front all are fixedly connected with the locating plate, the right side mounting of boat body has synchronous subassembly, the synchronous subassembly includes the guide frame fixedly installed in the right side of boat body, the inside sliding connection of guide frame has a plurality of movable frame, a plurality of movable frame's top all are connected with the locating plate fixedly, the top installation of a plurality of movable frame between folding frame, and a plurality of movable frame all are connected with folding frame rotation, the utility model discloses through the design improved the installation convenience of silicon wafer, can equal interval spacing simultaneously to the silicon wafer is separated, makes the silicon wafer can be contacted with gas evenly, has improved solar cell diffusion process effect, has further improved the performance of solar cell.
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Description

Technical Field

[0001] This utility model relates to the field of quartz boat technology, specifically to a solar cell diffusion quartz boat. Background Technology

[0002] Quartz boats, also known as quartz glass, are made of silicon dioxide-containing materials such as crystal and silica. In the production process of solar crystalline silicon cells, diffusion to prepare PN junctions is an important step, and most diffusion furnaces require quartz boats to support silicon wafers.

[0003] According to the search, publication number CN219476638U provides an anti-adhesion quartz boat structure, including a quartz boat body, an isolation mechanism is provided inside the quartz boat body; the isolation mechanism includes a support part provided inside the quartz boat body, and several movable and detachable isolation parts are provided on the support part;

[0004] The aforementioned application utilizes an isolation mechanism, in which a support portion supports the isolation unit, thus separating the silicon wafers and preventing them from sticking together. However, in actual operation, the elastic brackets at both ends of the isolation mechanism inside the quartz boat cannot operate synchronously. If the elastic brackets at both ends are not aligned, the silicon wafers cannot be inserted vertically, requiring a significant amount of time to align them, thereby reducing ease of use. Furthermore, after isolating multiple sets of silicon wafers, there is a situation of wafer accumulation, meaning the spacing between the wafers cannot be precisely controlled. This may result in gaps that are too large or too small, leading to uneven contact between the silicon wafers and gas during the diffusion process, failing to achieve a good diffusion effect, and consequently reducing the performance of the solar cell.

[0005] Therefore, it is of great importance to design a solar cell diffusion quartz boat to solve the above-mentioned defects. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention designs a solar cell diffusion quartz boat. This solar cell diffusion quartz boat aims to solve the technical problems of low ease of use of existing quartz boats and the inability to precisely control the spacing between silicon wafers, which leads to uneven contact between silicon wafers and gas during the diffusion process, resulting in poor diffusion effect and reduced solar cell performance.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A solar cell diffusion quartz boat includes a boat body, with multiple sets of fixed plates fixedly connected to the left and right sides of the boat body, multiple sets of movable frames movably installed inside the boat body, and positioning plates fixedly connected to both ends of the multiple sets of movable frames in front of the fixed plates, and a synchronization component installed on the right side of the boat body.

[0009] The synchronization component includes a guide frame fixedly installed on the right side of the boat hull. Multiple sets of movable frames are slidably connected inside the guide frame. The top ends of the multiple sets of movable frames are fixedly connected to a positioning plate. A folding frame is installed at the top end between the multiple sets of movable frames, and the multiple sets of movable frames are rotatably connected to the folding frame. The front end of the folding frame is rotatably connected to the guide frame. An operating screw is threadedly connected to the rear end of the guide frame. The front end of the operating screw is rotatably connected to one of the sets of movable frames through a connector.

[0010] As a preferred embodiment of this utility model, a through groove is provided on the right side of the boat body at a position corresponding to the multiple sets of movable frames, and a sliding rod is fixedly connected to the top of the inner side of the guide frame, and the outer sides of the multiple sets of movable frames are slidably connected to the sliding rod through a sliding sleeve.

[0011] As a preferred embodiment of this utility model, the bottom end of the inner side of the guide frame is provided with a movable groove, and the bottom end of multiple sets of movable frames located inside the movable groove is rotatably connected with a movable wheel.

[0012] As a preferred embodiment of this utility model, the operating screw is threadedly connected to the guide frame via a connecting sleeve, and a first locking knob is threadedly connected to the outer side of the connecting sleeve, and the first locking knob abuts against the operating screw.

[0013] As a preferred embodiment of this utility model, a hanging lug is fixedly installed on the front of the boat body, and a material picking frame is movably installed inside the boat body. Both ends of the material picking frame are fixedly connected to an operating handle, and a second locking knob is threadedly connected inside the operating handle, with the second locking knob abutting against the boat body.

[0014] As a preferred embodiment of this utility model, the multiple sets of fixing plates are distributed at equal intervals on the left and right sides inside the boat body, and the multiple sets of fixing plates are fixedly connected to contact points on the side opposite to the positioning plate.

[0015] As a preferred embodiment of this utility model, two sets of sliding grooves are provided on the left side of the interior of the boat body, and the left end of the movable frame is slidably connected to the sliding grooves by a slider.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, through the coordinated design of the fixed plate, movable frame, positioning plate, and synchronization component, when placing the silicon wafer inside the boat, the silicon wafer is first inserted into the boat and positioned between the fixed plate and the positioning plate. Then, the operating screw is rotated backward to pull one set of movable frames. The movable frames drive the folding frame to stretch. When the folding frame stretches, it can simultaneously drive multiple sets of movable frames to move inside the guide frame. When multiple sets of movable frames move, their tops move inside the through slot, thereby simultaneously driving multiple sets of movable frames to move backward together. This allows the positioning plate to approach the fixed plate to position the silicon wafer, so that the contact point contacts the silicon wafer. By reducing the contact area, the gas contact area is increased. This not only improves the ease of silicon wafer installation but also allows for equal spacing of the silicon wafer, enabling the silicon wafer to have uniform contact with the gas. This improves the diffusion process effect of solar cells and further enhances the performance of solar cells. Attached Figure Description

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

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

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

[0021] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0022] Figure 5 This is a schematic diagram of the material handling frame structure of this utility model.

[0023] In the diagram: 1. Boat hull; 101. Hanging lug; 102. Material picking frame; 103. Operating handle; 104. Second locking knob; 2. Fixing plate; 201. Contact point; 3. Movable frame; 301. Slide groove; 302. Slider; 4. Positioning plate; 5. Synchronization assembly; 501. Guide frame; 502. Movable frame; 503. Folding frame; 504. Operating screw; 505. Connector; 506. Through groove; 507. Slide rod; 508. Sliding sleeve; 509. Movable groove; 510. Moving wheel; 511. Connecting sleeve; 512. First locking knob; 508. Sliding sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figures 1-5 This utility model provides a technical solution:

[0026] A solar cell diffusion quartz boat includes a boat body 1, with multiple sets of fixing plates 2 fixedly connected to the left and right sides inside the boat body 1, and multiple sets of movable frames 3 movably installed inside the boat body 1. Positioning plates 4 are fixedly connected to both ends of the multiple sets of movable frames 3 and in front of the fixing plates 2. A synchronization component 5 is installed on the right side of the boat body 1.

[0027] First, in this embodiment, the specific structure of the synchronization component 5 is as follows:

[0028] The synchronization component 5 includes a guide frame 501 fixedly installed on the right side of the boat hull 1. Multiple sets of movable frames 502 are slidably connected inside the guide frame 501. The top ends of each set of movable frames 502 are fixedly connected to the positioning plate 4. A folding frame 503 is installed at the top end between the sets of movable frames 502, and each set of movable frames 502 is rotatably connected to the folding frame 503. The front end of the folding frame 503 is rotatably connected to the guide frame 501. An operating screw 504 is threadedly connected to the rear end of the guide frame 501. The front end of the operating screw 504 is rotatably connected to one of the movable frames 502 via a connector 505. When placing the silicon wafer inside the boat hull 1, the silicon wafer is first inserted into the boat hull 1 and positioned in the fixed position. Between the fixed plate 2 and the positioning plate 4, the operating screw 504 is rotated backward to pull one of the movable frames 502. The movable frame 502 drives the folding frame 503 to stretch. When the folding frame 503 stretches, it can simultaneously drive multiple sets of movable frames 502 to move inside the guide frame 501, thereby simultaneously driving multiple sets of movable frames 3 to move backward together. This allows the positioning plate 4 to approach the fixed plate 2 to position the silicon wafer, ensuring the stability of the silicon wafer in the boat 1, thereby improving the ease of installation of the silicon wafer. At the same time, it can separate the silicon wafer at equal intervals, allowing the silicon wafer to contact the gas evenly, improving the diffusion process effect of the solar cell, and further improving the performance of the solar cell.

[0029] Furthermore, a through groove 506 is provided on the right side of the boat hull corresponding to the position of the multiple sets of movable frames 502. A sliding rod 507 is fixedly connected to the top of the inner side of the guide frame 501. The outer sides of the multiple sets of movable frames 502 are slidably connected to the sliding rod 507 through the sliding sleeve 508. When the multiple sets of movable frames 502 move, their tops move inside the through groove 506, thereby driving the positioning plate 4 to approach the fixed plate 2 to position the silicon wafer. At the same time, the guide frame 501 is slidably connected to the sliding rod 507 through the sliding sleeve 508, thereby ensuring the movement stability of the movable frame 502.

[0030] Then, a movable groove 509 is provided at the bottom of the inner side of the guide frame 501. The bottom of multiple movable frames 502 and located inside the movable groove 509 are rotatably connected to movable wheels 510. When the movable frame 502 moves, the movable wheels 510 roll inside the movable groove 509, which further improves the stability of movement.

[0031] Furthermore, the operating screw 504 is threadedly connected to the guide frame 501 via the connecting sleeve 511. The outer side of the connecting sleeve 511 is threaded with a first locking knob 512, and the first locking knob 512 abuts against the operating screw 504. After rotating the operating screw 504 to bring the positioning plate 4 close to the fixing plate 2 to position the silicon wafer, the first locking knob 512 is tightened to abut against the operating screw 504 to prevent it from rotating, further ensuring the stability of the silicon wafer after it is positioned inside the boat 1.

[0032] The boat body 1 has a hanging lug 101 fixedly installed on its front side, and a material picking frame 102 is movably installed inside the boat body 1. Both the front and rear ends of the material picking frame 102 are fixedly connected to an operating handle 103, and the operating handle 103 is threadedly connected to a second locking knob 104. The second locking knob 104 abuts against the boat body 1. The boat body 1 can be suspended after use by the hanging lug 101. When removing silicon wafers later, the positioning plate 4 is first operated to release the positioning of the silicon wafers, and then the second locking knob 104 is loosened to release the fixing of the material picking frame 102. Then, the material picking frame 102 can be removed from the inside of the boat body 1 by the operating handle 103, so that multiple sets of silicon wafers can be removed at the same time, thereby improving the convenience of material picking.

[0033] Secondly, multiple sets of fixing plates 2 are evenly distributed on the left and right sides inside the boat body 1. Each set of fixing plates 2 is fixedly connected to a contact point 201 on the side opposite to the positioning plate 4. After the silicon wafer is positioned by the positioning plate 4 and the fixing plate 2, the contact point 201 contacts the silicon wafer. By reducing the contact area, the gas contact area is increased, which further improves the performance of the solar cell.

[0034] Finally, two sets of sliding grooves 301 are provided on the left side inside the boat body 1. The left end of the movable frame 3 is slidably connected to the sliding groove 301 through the slider 302. When multiple sets of movable frames 3 move, the left end of the movable frame 3 slides inside the sliding groove 301 through the slider 302, which further ensures the movement stability of the positioning plate 4.

[0035] In this embodiment, the specific implementation scenario is as follows: When placing the silicon wafer inside the boat 1, the silicon wafer is first inserted into the boat 1 and positioned between the fixed plate 2 and the positioning plate 4. Then, the operating screw 504 is rotated backward to pull one set of movable frames 502. The movable frames 502 drive the folding frame 503 to stretch. When the folding frame 503 stretches, it can simultaneously drive multiple sets of movable frames 502 to move inside the guide frame 501. When multiple sets of movable frames 502 move, their tops move inside the through groove 506, thereby simultaneously driving multiple sets of movable frames 3 to move backward together, so that the positioning... Positioning plate 4 is placed close to fixing plate 2 to position the silicon wafer. After positioning the silicon wafer using positioning plate 4 and fixing plate 2, contact point 201 contacts the silicon wafer. By reducing the contact area, the contact area of ​​the gas is increased. Then, the first locking knob 512 is tightened to block the operating screw 504 and prevent it from rotating. The whole operation process is simple and convenient. This utility model improves the ease of installation of silicon wafers through design, and can also separate silicon wafers at equal intervals, so that the silicon wafers can be in uniform contact with the gas, improve the diffusion process effect of solar cells, and further improve the performance of solar cells.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solar cell diffusion quartz boat, comprising a hull (1), characterized in that: Multiple sets of fixed plates (2) are fixedly connected to the left and right sides inside the boat body (1). Multiple sets of movable frames (3) are movably installed inside the boat body (1). Positioning plates (4) are fixedly connected to both ends of the multiple sets of movable frames (3) and in front of the fixed plates (2). A synchronization component (5) is installed on the right side of the boat body (1). The synchronization component (5) includes a guide frame (501) fixedly installed on the right side of the boat body (1). Multiple sets of movable frames (502) are slidably connected inside the guide frame (501). The top ends of the multiple sets of movable frames (502) are fixedly connected to the positioning plate (4). A folding frame (503) is installed at the top end between the multiple sets of movable frames (502), and the multiple sets of movable frames (502) are rotatably connected to the folding frame (503). The front end of the folding frame (503) is rotatably connected to the guide frame (501). An operating screw (504) is threadedly connected to the rear end of the guide frame (501). The front end of the operating screw (504) is rotatably connected to one of the sets of movable frames (502) through a connector (505).

2. The solar cell diffusion quartz boat according to claim 1, characterized in that: A through groove (506) is provided on the right side of the boat body (1) at a position corresponding to the multiple sets of movable frames (502). A sliding rod (507) is fixedly connected to the top of the inner side of the guide frame (501). The outer sides of the multiple sets of movable frames (502) are slidably connected to the sliding rod (507) through a sliding sleeve (508).

3. The solar cell diffusion quartz boat according to claim 1, characterized in that: The bottom of the inner side of the guide frame (501) is provided with a movable groove (509), and the bottom of the multiple sets of movable frames (502) located inside the movable groove (509) are rotatably connected with movable wheels (510).

4. The solar cell diffusion quartz boat according to claim 1, characterized in that: The operating screw (504) is threadedly connected to the guide frame (501) via a connecting sleeve (511). A first locking knob (512) is threadedly connected to the outer side of the connecting sleeve (511), and the first locking knob (512) abuts against the operating screw (504).

5. A solar cell diffusion quartz boat according to claim 1, characterized in that: The front of the boat body (1) is fixedly equipped with a hanging lug (101), and a material picking frame (102) is movably installed inside the boat body (1). Both ends of the material picking frame (102) are fixedly connected with an operating handle (103), and the inside of the operating handle (103) is threadedly connected with a second locking knob (104), which abuts against the boat body (1).

6. The solar cell diffusion quartz boat according to claim 1, characterized in that: The multiple sets of fixing plates (2) are all located inside the boat body (1) and are equally spaced on the left and right sides. The multiple sets of fixing plates (2) are fixedly connected to the side opposite to the positioning plate (4) with contact points (201).

7. A solar cell diffusion quartz boat according to claim 1, characterized in that: Two sets of sliding grooves (301) are provided on the left side inside the boat body (1), and the left end of the movable frame (3) is slidably connected to the sliding grooves (301) through a slider (302).