Photovoltaic graphite boat anti-loosening ceramic gasket

Abstract

The utility model discloses an anti-loosening ceramic gasket for a photovoltaic graphite boat, and relates to the technical field of graphite boat connecting structures. The anti-loosening ceramic gasket is installed at the threaded end of the front end of the ceramic rod and clamped between the graphite boat piece and the graphite nut, the multi-tooth structures which are arranged on the two sides of the ceramic gasket and evenly scattered from the center in a surrounding mode are arranged, and the tooth tip direction is consistent with the locking direction of the graphite nut. The tooth tips can be embedded into the graphite nut and the graphite boat piece, and for high-frequency vibration generated in the transmission or machining process through a transmission belt, a mechanical arm and other components, the looseness situation caused by reverse rotation of the nut can be effectively prevented. The circular ring structure is adopted, and the multi-tooth structure which is uniformly scattered around the center is arranged, so that the structure and the shape are simple, and processing, mounting and dismounting are convenient; the ceramic material is adopted, the structural strength is high, the high-temperature-resistant effect is high, and the service life is long.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite boat connection structures, in particular to a photovoltaic graphite boat anti-loosening ceramic gasket. Background Art

[0002] Graphite boat is a device used for FECVD coating of solar cells. The graphite boat consists of boat pieces, ceramic rods, ceramic tubes, clamping points, nuts and other accessories. When used online for a long time, the nuts are prone to loosening, causing the graphite boat to deform, resulting in uneven coating thickness of the cell, falling pieces, and fragments. The graphite boat needs to be frequently taken offline for maintenance, which increases the defective rate of the cell and affects the overall life of the graphite boat.

[0003] When processing the existing graphite boat, the graphite boat is transferred to the wafer inserting machine through the online automation equipment. After the robot is filled with silicon wafers, the automation equipment will transfer the graphite boat to the furnace tube for coating process, and the cycle will be repeated; however, during the transmission or processing process through the transmission belt and the robot and other components, the graphite boat will be affected by vibration and high temperature. Figure 1 As shown, the current graphite boat is threadedly connected to the right-handed graphite ceramic rod through a conventional right-handed graphite nut to limit the graphite boat, etc. However, due to the influence of vibration, the nut can easily loosen, thereby posing a risk of falling off; for this reason, the present technical solution provides a photovoltaic graphite boat anti-loosening ceramic gasket, which is used for a stable and anti-loosening connection between the ceramic rod and the graphite boat sheet, thereby solving the problem that the nut of the graphite boat is easy to loosen when used online. Utility Model Content

[0004] The utility model provides a ceramic gasket for preventing loosening of a photovoltaic graphite boat, which is installed on the threaded end of the front end of a ceramic rod and clamped between a graphite boat sheet and a graphite nut. A multi-tooth structure is arranged on both sides of the ceramic gasket and is evenly scattered around the center, and the direction of the tooth tip is consistent with the locking direction of the graphite nut, so that the tooth tip can be embedded in the graphite nut and the inside of the graphite boat sheet. For high-frequency vibrations generated during transmission or processing by components such as transmission belts and manipulators, the nut can be effectively prevented from rotating in the opposite direction and thus causing loosening. In summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a photovoltaic graphite boat anti-loosening ceramic gasket, comprising a ceramic gasket body, which is installed on the threaded end of the outer front part of a ceramic rod in the graphite boat;

[0007] The ceramic gasket body is sandwiched between the graphite boat sheet and the graphite nut;

[0008] The ceramic gasket body is in the shape of a circular ring, the inner hole diameter of the ceramic gasket body is consistent with the outer diameter of the threaded end, and the outer diameter of the ceramic gasket body is consistent with the full circle corresponding to the outer arc of the graphite nut; the two side surfaces of the ceramic gasket body adopt a multi-tooth structure that is evenly scattered around the center, and the tooth tip direction of the multi-tooth structure is consistent with the locking direction of the graphite nut.

[0009] Furthermore, the tooth tip of the multi-tooth structure includes a vertical surface and an oblique surface, forming a right-angled triangle arrangement, with the oblique surface facing the direction of the tooth tip.

[0010] Furthermore, the ceramic gasket body is provided with at least one.

[0011] Furthermore, the multi-tooth structures on the two side surfaces of the ceramic gasket body adopt a spatially complementary interlocking design.

[0012] Furthermore, the ceramic gasket body is made of any one of alumina ceramics, silicon nitride ceramics, zirconium oxide ceramics, and silicon carbide ceramics.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) Good anti-loosening effect: The anti-loosening ceramic gasket is installed at the threaded end of the front end of the ceramic rod and is sandwiched between the graphite boat and the graphite nut. The multi-tooth structure on both sides of the ceramic gasket is evenly scattered around the center, and the direction of the tooth tip is consistent with the locking direction of the graphite nut. The tooth tip can be embedded in the graphite nut and the graphite boat. For the high-frequency vibration generated by the transmission or processing process through the transmission belt and the robot, it can effectively prevent the nut from rotating in the opposite direction and causing loosening;

[0015] (2) Simple structure: It adopts a circular ring structure, with a multi-tooth structure that is evenly scattered around the center. The structure and shape are simple, and it is easy to process, install and disassemble;

[0016] (3) High structural strength: Made of ceramic material, it has high structural strength, high temperature resistance and long service life.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a structural diagram of a conventional right-handed graphite nut and a right-handed graphite ceramic rod being threadedly connected in the prior art;

[0020] Figure 2 This is a schematic diagram of the structure of the photovoltaic graphite boat anti-loosening ceramic gasket installation node of the specific embodiment 1;

[0021] Figure 3 for Figure 2 Structural perspective drawing of

[0022] Figure 4 It is a structural schematic diagram of a photovoltaic graphite boat anti-loosening ceramic gasket installation node of specific embodiment 2;

[0023] Figure 5 It is a structural schematic diagram of the ceramic gasket body;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-ceramic gasket body, 101-multi-tooth structure, 2-graphite nut, 3-graphite boat, 4-ceramic rod, 401-threaded end. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "outside", "front", "inside", "two sides", "vertical surface" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] like Figure 1 As shown, it is a structural diagram of the connection nodes of the existing ceramic rods, boat pieces and nuts; the current graphite boat is threadedly connected to the right-handed graphite ceramic rod through a conventional right-handed graphite nut to limit the graphite boat, etc. However, due to the influence of vibration, the nut can be easily loosened, thereby posing a risk of falling off; therefore, in order to avoid the above situation, a photovoltaic graphite boat anti-loosening ceramic gasket and a corresponding installation node are proposed in the present technical solution. Specific embodiment 1:

[0030] See also Figure 2-3 as well as Figure 5 As shown, a photovoltaic graphite boat anti-loosening ceramic gasket of the utility model comprises a ceramic gasket body 1, which is installed on the threaded end 401 of the outer front part of the ceramic rod 4 in the graphite boat; in this specific embodiment, the ceramic gasket body 1 is provided with one;

[0031] The ceramic gasket body 1 is sandwiched between the graphite boat sheet 3 and the graphite nut 2;

[0032] The ceramic gasket body 1 is annular, the inner diameter of the ceramic gasket body 1 is consistent with the outer diameter of the threaded end 401, and the outer diameter of the ceramic gasket body 1 is consistent with the full circle corresponding to the outer arc of the graphite nut 2; the two side surfaces of the ceramic gasket body 1 adopt a multi-tooth structure 101 that is uniformly scattered around the center, and the tooth tip direction of the multi-tooth structure 101 is consistent with the locking direction of the graphite nut 2; in this specific embodiment, the graphite nut 2 adopts an M10 graphite nut; the multi-tooth structure 101 on the two side surfaces of the ceramic gasket body 1 adopts a spatially complementary interlocking design; the tooth tip of the multi-tooth structure 101 includes a vertical surface and an oblique surface, forming a right-angled triangle arrangement, with the oblique surface forming the tooth tip direction; for specific forms, please refer to Figure 2 As shown;

[0033] The ceramic gasket body 1 is made of any one of alumina ceramics, silicon nitride ceramics, zirconium oxide ceramics, and silicon carbide ceramics. In this specific embodiment, silicon carbide ceramics are used, which has excellent structural strength and high temperature resistance.

[0034] The purpose of the utility model is to provide a ceramic gasket for preventing loosening of a graphite boat for photovoltaic use, which solves the problem that the nuts of the graphite boat are easy to loosen when used online. The ceramic gasket adopts a multi-tooth structure, and the direction of the tooth tip is consistent with the locking direction of the nut. When the nut is locked, the tooth tip of the ceramic gasket is embedded in the graphite, which effectively prevents the nut from loosening due to reverse rotation under high-frequency vibration. Specific embodiment 2:

[0036] The difference between this specific embodiment and specific embodiment 1 is that:

[0037] In this specific embodiment, two groups of corresponding ceramic gasket bodies 1 are arranged, and the front and rear are arranged in close contact, such as Figure 4 As shown, specifically, after two sets of ceramic gasket bodies 1 are fitted together, the corresponding multi-tooth structures 101 adopt a spatially complementary interlocking design.

[0038] The photovoltaic graphite boat anti-loosening ceramic gasket of the present technical solution is installed on the threaded end of the front end of the ceramic rod and clamped between the graphite boat sheet and the graphite nut. Through the multi-tooth structure uniformly scattered by the center on both sides of the ceramic gasket, and the direction of the tooth tip is consistent with the locking direction of the graphite nut, the tooth tip can be embedded in the graphite nut and the graphite boat sheet, and the high-frequency vibration generated by the transmission or processing process through the transmission belt and the robot and other components can be effectively prevented from the nut from rotating in the opposite direction and causing loosening; the graphite boat anti-loosening ceramic gasket adopts a circular ring structure and is uniformly scattered by the center. The structure and shape are simple, and it is easy to process, install and disassemble; the graphite boat anti-loosening ceramic gasket is made of ceramic material, with high structural strength and high temperature resistance, and long service life.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A photovoltaic graphite boat anti-loosening ceramic gasket, comprising a ceramic gasket body (1), the ceramic gasket body (1) being mounted on a threaded end (401) of the outer front portion of a ceramic rod (4) in the graphite boat, characterized in that: The ceramic gasket body (1) is sandwiched between the graphite boat sheet (3) and the graphite nut (2); The ceramic gasket body (1) is in the shape of a ring; the inner diameter of the ceramic gasket body (1) is consistent with the outer diameter of the threaded end (401); the outer diameter of the ceramic gasket body (1) is consistent with the full circle corresponding to the outer arc of the graphite nut (2); the two side surfaces of the ceramic gasket body (1) adopt a multi-tooth structure (101) that is evenly scattered around the center; the tooth tip direction of the multi-tooth structure (101) is consistent with the locking direction of the graphite nut (2).

2. The photovoltaic graphite boat anti-loosening ceramic gasket according to claim 1, characterized in that: The tooth tip of the multi-tooth structure (101) comprises a vertical surface and an oblique surface, forming a right-angled triangle arrangement, with the oblique surface facing the direction of the tooth tip.

3. The photovoltaic graphite boat anti-loosening ceramic gasket according to claim 1, characterized in that: The ceramic gasket body (1) is provided with at least one.

4. The photovoltaic graphite boat anti-loosening ceramic gasket according to claim 1, characterized in that: The multi-tooth structures (101) on the two side surfaces of the ceramic gasket body (1) adopt a spatially complementary interlocking design.

5. The photovoltaic graphite boat anti-loosening ceramic gasket according to claim 1, characterized in that: The ceramic gasket body (1) is made of any one of alumina ceramics, silicon nitride ceramics, zirconium oxide ceramics and silicon carbide ceramics.

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