Graphite boat page and graphite boat

Abstract

The utility model provides a graphite boat page, which comprises a sheet inserting groove and a sheet inserting page, and the sheet inserting groove is detachably connected with the sheet inserting page. The inserting piece groove comprises a connecting part and a plurality of limiting parts, the limiting parts are vertically arranged on the connecting part and fixedly connected with the connecting part, a containing cavity is formed between every two limiting parts and the connecting part, and the containing cavities are used for containing the inserting piece pages; inclined hollowed-out parts matched with silicon wafers in size are arranged on the wafer inserting pages. Through the integrated design, the usage amount of small parts can be reduced, in addition, through the design of the independent insertion pieces, the insertion pieces can be replaced according to silicon wafers of different sizes, the whole graphite boat page does not need to be replaced, and the replacement cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of solar cell manufacturing technology, and in particular to a graphite boat and a graphite boat. Background Technology

[0002] In today's highly competitive photovoltaic industry, battery production technology is undergoing rapid iteration and optimization to improve battery efficiency and reduce costs. In particular, the battery coating process, as a key step in enhancing battery performance, has seen significant technological advancements. Currently, the industry commonly employs two technologies: dual-boat coating and single-boat coating. Manufacturers decide which method to use based on factors such as production efficiency and cost control.

[0003] However, with continuous technological advancements and the increasing size of silicon wafers, graphite boats, as crucial tools for supporting silicon wafers during coating processes, also face a series of challenges. First, the increased size of silicon wafers necessitates larger graphite boats to meet new production demands. This not only increases manufacturing costs but also forces older models to be phased out, further increasing the cost burden on companies. Second, the complexity of graphite boats is also a problem. Assembling a multi-component graphite boat requires more labor and time, increasing labor costs and potentially raising the error rate during production.

[0004] Furthermore, due to their increased length, the boat blades of large-size graphite boats are more prone to deformation and breakage in the high-temperature and high-humidity coating environment. This not only affects the continuity of production but may also lead to product quality issues. Once a boat blade breaks, the entire boat blade must be replaced, which involves not only material costs but also downtime and loss of production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an integrated graphite boat.

[0006] In a first aspect, this utility model provides a graphite boat sheet, including an insert groove and an insert sheet, wherein the insert groove and the insert sheet are detachably connected;

[0007] The insert slot includes a connecting part and several limiting parts. The limiting parts are vertically disposed on the connecting part and fixedly connected to the connecting part. A receiving cavity is formed between every two limiting parts and the connecting part. The receiving cavity is used to place the insert page. The insert page has an inclined cutout that matches the size of the silicon wafer.

[0008] Furthermore, the connecting portion and the limiting portion within the accommodating cavity are provided with limiting grooves, and the insert page is snapped into the limiting grooves.

[0009] Furthermore, the cutout is surrounded by locking points, which are located on the sides of the cutout. When the silicon wafer is locked onto the locking points, the silicon wafer is tilted.

[0010] Furthermore, the side edges of the limiting portions on both sides of the insert groove extend away from the insert groove to form extension members, which are used for connecting multiple graphite boat sheets.

[0011] Furthermore, the extension is arranged at different positions along the vertical direction, and the extension is also provided with a first fixing hole.

[0012] Furthermore, a second fixing hole is provided on the surface of the limiting part parallel to the insert sheet. The second fixing hole penetrates the limiting part and is used for connecting multiple graphite boat sheets.

[0013] Secondly, this utility model provides a graphite boat, which includes multiple sets of graphite boat pages as described in any of the preceding claims, and also includes ceramic parts and electrode assemblies.

[0014] The multiple sets of graphite boats are fixedly connected by the ceramic component, which is located at the end of the limiting part away from the connecting part. The ceramic component is provided with multiple slots, and the graphite boats are locked in the slots of the ceramic component.

[0015] The electrode assembly is placed on the extension of the limiting part, and one end of the electrode assembly is provided with an inwardly extending insertion hole, and the extension is placed in the insertion hole.

[0016] Furthermore, the ceramic component has a third fixing hole at both ends, and the fixing component passes through the second fixing hole and the third fixing hole to fix multiple sets of graphite boats.

[0017] Furthermore, the electrode assembly includes an upper electrode and a lower electrode, the upper electrode being connected to an extension member away from the connecting portion, and the lower electrode being connected to an extension member close to the connecting portion;

[0018] The bottom of the lower electrode is provided with two support blocks, which are embedded inside the lower electrode and protrude from the lower surface of the lower electrode.

[0019] Furthermore, it also includes a graphite rod, the electrode block is provided with a connection hole, the graphite rod passes through the limiting member and the second fixing hole in sequence, and multiple sets of graphite boats are connected together at the end by a nut.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention is to design a novel modular graphite boat, which is composed of an integrated electrode block, an integrated ceramic ring, and spliced ​​boat blades. The spliced ​​boat blades are composed of inserts and insert holders. The integrated design can reduce the number of small parts used. In addition, the design of individual inserts can replace inserts according to different sizes of silicon wafers without replacing the entire graphite boat blades, thus reducing replacement costs. Attached Figure Description

[0021] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the combination of the insert slot and the insert page in one embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the insert slot and insert sheet in one embodiment of the present invention;

[0024] Figure 3 This is a front view of a ceramic component in one embodiment of the present invention;

[0025] Figure 4 This is a perspective view of a ceramic component in one embodiment of the present invention;

[0026] Figure 5 This is a top view of the upper electrode in one embodiment of the present invention;

[0027] Figure 6 This is a top view of the lower electrode in one embodiment of the present invention.

[0028] Among them, 1-graphite boat leaf; 2-ceramic part; 3-electrode assembly; 10-insertion leaf; 11-cutout; 12-locking point; 100-insertion slot; 101-connecting part; 102-limiting part; 1021-second fixing hole; 103-extension part; 1031-first fixing hole; 21-slot; 22-third fixing hole; 31-insertion hole; 32-upper electrode; 33-lower electrode; 331-support block. Detailed Implementation

[0029] The following is a more detailed description of a graphite boat sheet and a graphite boat according to the present invention, with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being broadly known to those skilled in the art and is not intended to limit the present invention.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0032] In a first aspect, the present invention provides a graphite boat sheet 1, including a insert groove 100 and an insert sheet 10, wherein the insert groove 100 and the insert sheet 10 are detachably connected;

[0033] The insert slot 100 includes a connecting part 101 and a plurality of limiting parts 102. The limiting parts 102 are vertically disposed on the connecting part 101 and fixedly connected to the connecting part 101. A receiving cavity is formed between every two limiting parts 102 and the connecting part 101. The receiving cavity is used to place the insert page 10. The insert page 10 is provided with an inclined cutout 11 that matches the size of the silicon wafer.

[0034] Specifically, the insert slot 100 serves as the main body of the graphite boat, providing structural support and fixing the insert sheet 10. The insert sheet 10 has a cutout 11 that matches the size of the silicon wafer, used to support the silicon wafer and transfer heat.

[0035] The insert slot 100 includes a connecting portion 101 and a limiting portion 102. The connecting portion 101 is the bottom of the insert slot 100, and the limiting portion 102 is fixed to the connecting portion 101 to limit the movement of the insert sheet 10 and ensure the stability of the insert sheet 10. A receiving cavity is formed between every two limiting portions 102 and the connecting portion 101 below, and the receiving cavity is used to receive the insert sheet 10.

[0036] Furthermore, the connecting part 101 and the limiting part 102 within the accommodating cavity are provided with limiting grooves, and the insert sheet 10 is snapped into the limiting grooves.

[0037] In order to fix the insert sheet 10 in the insert groove 100, a limiting groove is provided on the insert groove 100 on the outer periphery of the receiving cavity (i.e., the inner wall of the limiting part and the connecting part), so that the insert sheet 10 can be slid into the receiving cavity along the limiting groove and fixed in the receiving cavity at the same time.

[0038] Furthermore, the cutout 11 is surrounded by locking points 12, which are located on the sides of the cutout 11. When the silicon wafer is locked onto the locking points 12, the silicon wafer is tilted.

[0039] Specifically, the locking points 12 are used to secure the silicon wafer. They fix the silicon wafer onto the insert plate 10, preventing it from moving or falling off during high-temperature processing. Simultaneously, they ensure accurate positioning of the silicon wafer on the insert plate and good contact between the silicon wafer and the graphite boat plate for heat transfer. Specifically, the locking points 12 are located on the insert plate 10, distributed around the side of the cutout 11. The locking points 12 can be raised claws, grooves, or other structures capable of holding the edge of the silicon wafer. High-temperature resistant materials, such as graphite or ceramic, are typically used.

[0040] Furthermore, the side edges of the limiting portions 102 on both sides of the insert groove 100 extend away from the insert groove 100 to form extension members 103, which are used for connecting multiple graphite boat sheets.

[0041] Furthermore, the extension 103 is arranged at different positions along the vertical direction, and the extension 103 is also provided with a first fixing hole 1031.

[0042] Specifically, the extension 103 is used to connect multiple graphite boats 1, linking them together to form a complete graphite boat. The extension 103 enhances the overall stability of the graphite boat, preventing deformation or movement during high-temperature processing. The extension can be a protruding connecting block, a groove, or other structure.

[0043] Furthermore, a second fixing hole 1021 is provided on the surface of the limiting part 102 parallel to the insert sheet 10. The second fixing hole penetrates the limiting part 102 and is used for connecting multiple graphite boat sheets.

[0044] Secondly, this utility model provides a graphite boat, which includes multiple sets of graphite boat pages as described in any of the preceding claims, as well as a ceramic component 2 and an electrode assembly 3.

[0045] The multiple sets of graphite boats are fixedly connected by the ceramic component 2. The ceramic component 2 is placed at the end of the limiting part 102 away from the connecting part 101. The ceramic component 2 is provided with multiple slots 21, and the graphite boats are locked in each slot 21 of the ceramic component 2.

[0046] The electrode assembly 3 is placed on the extension 103 of the limiting part 102, and one end of the electrode assembly 3 is provided with an inwardly extending insertion hole 31, and the extension 103 is placed in the insertion hole 31.

[0047] For details, please refer to Figure 2 and Figure 3 The ceramic component 2 is used to connect and fix the graphite boat sheets, and also serves as heat insulation and electrical insulation. The electrode assembly 3 is used to heat the graphite boat sheets and the silicon wafer. The ceramic component 2 holds the graphite boat sheets in place through the slot 21, connecting multiple graphite boat sheets 1 together to form a complete graphite boat. It also prevents heat transfer to areas outside the graphite boat sheets 1 and provides insulation to prevent short circuits between the electrode assembly 3 and the graphite boat sheets. The electrode assembly 3 heats the graphite boat sheets 1 through current, transferring heat to the silicon wafer to complete the high-temperature process.

[0048] In this embodiment, the limiting part 102 of the graphite boat 1 is engaged in the slot 21 of the ceramic part 2, achieving connection and fixation. The insertion hole 31 of the electrode assembly 3 is inserted into the extension 103 of the graphite boat 1, achieving connection and fixation.

[0049] Furthermore, the ceramic component 2 has a third fixing hole 22 at both ends, and the fixing component passes through the second fixing hole 1021 and the third fixing hole 22 to fix multiple sets of graphite boats.

[0050] Specifically, the limiting parts 102 of multiple graphite boat sheets 1 and the ceramic parts 2 are connected together by bolts or other fasteners, further enhancing the connection strength and stability between the graphite boat sheets. The connecting function of the third fixing hole 22 can prevent the graphite boat sheets from deforming or moving during high-temperature processing.

[0051] Furthermore, it also includes a graphite rod, which passes sequentially through the limiting member and the second fixing hole, and connects multiple sets of graphite boat sheets together at the end by a nut.

[0052] In one possible embodiment of this invention, a graphite rod passes sequentially through the limiting part 102 and the second fixing hole 1021, connecting the limiting parts of multiple graphite boat sheets together. A nut is installed at the end of the graphite rod, and the graphite boat sheets 1 are fixed together by tightening the nut.

[0053] Furthermore, the electrode assembly 3 includes an upper electrode 32 and a lower electrode 33. The upper electrode 32 is connected to an extension 103 away from the connecting portion 101, and the lower electrode 33 is connected to an extension 103 close to the connecting portion 101.

[0054] The bottom of the lower electrode 33 is provided with two support blocks 331, which are embedded inside the lower electrode 33 and protrude from the lower surface of the lower electrode 33.

[0055] Please refer to Figure 4 and Figure 5 The upper electrode 32 and the lower electrode 33 are located on the upper and lower sides of the graphite boat, respectively, and are used to heat the graphite boat and the silicon wafer. The extension 103 is used to connect the electrode assembly 3 and the graphite boat. The support block 331 is located at the bottom of the lower electrode 33 and is used to support the lower electrode 33 and prevent the lower electrode 33 from deforming or moving.

[0056] The support block 331 can increase the contact area between the lower electrode 33 and the graphite boat 1, thereby improving the heat transfer efficiency and preventing the lower electrode 33 from deforming or moving during the high-temperature process.

[0057] In summary, the arrangement of ceramic components and electrode assemblies ensures a robust connection between the graphite boats, guaranteeing structural stability. The design of fasteners, graphite rods, and support blocks effectively prevents deformation or movement of the graphite boats and electrode assemblies during high-temperature processing, ensuring process stability. The silicon wafers are fixed to inclined locking points, ensuring accurate positioning during high-temperature processing and facilitating high-quality process results. The designed structure facilitates the assembly and disassembly of the graphite boats, simplifying maintenance and replacement procedures.

[0058] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A graphite boat leaf, characterized in that, It includes an insert slot and an insert page, wherein the insert slot and the insert page are detachably connected; The insert slot includes a connecting part and several limiting parts. The limiting parts are vertically disposed on the connecting part and fixedly connected to the connecting part. A receiving cavity is formed between every two limiting parts and the connecting part. The receiving cavity is used to place the insert page. The insert page has an inclined cutout that matches the size of the silicon wafer.

2. The graphite boat leaf as described in claim 1, characterized in that, The connecting portion and the limiting portion within the accommodating cavity are provided with limiting grooves, and the insert page is snapped into the limiting groove.

3. The graphite boat leaf as described in claim 1, characterized in that, The cutout is surrounded by locking points, which are located on the sides of the cutout. When the silicon wafer is locked onto the locking points, the silicon wafer is tilted.

4. The graphite boat leaf as described in claim 1, characterized in that, The sides of the limiting portions on both sides of the insert slot extend away from the insert slot to form extension members, which are used for connecting multiple graphite boat sheets.

5. The graphite boat sheet as described in claim 4, characterized in that, The extension members are arranged at different positions along the vertical direction, and the extension members are also provided with a first fixing hole.

6. The graphite boat leaf as described in claim 1, characterized in that, A second fixing hole is provided on the surface of the limiting part parallel to the insert sheet. The second fixing hole passes through the limiting part and is used for connecting multiple graphite boat sheets.

7. A graphite boat, characterized in that, It includes multiple sets of graphite boats as described in any one of claims 1-6, and also includes ceramic parts and electrode assemblies; The multiple sets of graphite boats are fixedly connected by the ceramic component, which is located at the end of the limiting part away from the connecting part. The ceramic component is provided with multiple slots, and the graphite boats are locked in the slots of the ceramic component. The electrode assembly is placed on the extension of the limiting part, and one end of the electrode assembly is provided with an inwardly extending insertion hole, and the extension is placed in the insertion hole.

8. The graphite boat as described in claim 7, characterized in that, The ceramic component has a third fixing hole at both ends, and the fixing component passes through the second fixing hole and the third fixing hole to fix multiple sets of graphite boats.

9. The graphite boat as described in claim 8, characterized in that, The electrode assembly includes an upper electrode and a lower electrode, the upper electrode being connected to an extension member away from the connecting portion, and the lower electrode being connected to an extension member close to the connecting portion; The bottom of the lower electrode is provided with two support blocks, which are embedded inside the lower electrode and protrude from the lower surface of the lower electrode.

10. The graphite boat as described in claim 8, characterized in that, The fastener includes a graphite rod that passes through the second and third fixing holes in sequence and is used to fix multiple sets of graphite boat sheets at its end by a nut.

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