CN216141658U

CN216141658U - Carbon-carbon cylinder for single crystal furnace

Info

Publication number: CN216141658U
Application number: CN202122075340.9U
Authority: CN
Inventors: 侯振华; 唐青岗; 张亮; 周绪成
Original assignee: Foshan Shijin Technology Co ltd
Current assignee: Foshan Shijin Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-29
Anticipated expiration: 2031-08-30

Abstract

The utility model provides a carbon-carbon cylinder for a single crystal furnace, which comprises a first pressing ring, a second pressing ring, a plurality of supporting columns and a plurality of connecting strips, wherein the first pressing ring is provided with a plurality of first dovetail grooves and a plurality of second dovetail grooves along the circumferential direction; two ends of the plurality of supporting columns are respectively and fixedly connected with the first dovetail groove and the third dovetail groove in a matched manner, and two ends of the plurality of supporting columns are respectively and fixedly inserted with the second dovetail groove and the fourth dovetail groove in a matched manner; the plurality of supporting columns and the plurality of connecting strips are enclosed to form a cylinder. This application overall structure equipment is convenient, uses the tenon fourth of the twelve earthly branches structure of dovetail to connect fixedly moreover, and overall structure is firm difficult not hard up, and the protection dynamics is enough, long service life, and the junction between each structure leaves the seam minimum to guaranteed that heat loss is not big when using, effectively reduced the energy consumption, had fine practicality.

Description

Carbon-carbon cylinder for single crystal furnace

Technical Field

The utility model relates to the field of single crystal production equipment, in particular to a carbon-carbon cylinder for a single crystal furnace.

Background

An inner cylinder can be arranged in a thermal field of the single crystal furnace, most of the inner cylinder is made of graphite or CFC (carbon fiber reinforced plastics), and the action is embodied as follows: the circumferencial direction is used for the parcel of outer heat preservation soft felt as the skeleton, and spare parts such as draft tube on upper portion are supported as to the upper and lower direction, and interior excircle face can reflect the heat radiation of heater to protection insulation material reduces to be erodeed and corrode by gas, also blocks the insulation material pollutant simultaneously and gets into the crucible, at last because whole inner tube is the homogeneous material, and the heat conduction can let the crystal be heated evenly, improves single crystal production efficiency.

In the existing material selection, design or processing technology, an integral cylinder made of graphite materials is generally adopted as an inner cylinder of a heat-insulating cylinder, and the integral cylinder is directly sleeved on the inner wall of the heat-insulating cylinder when in use; however, the integral cylinder is formed by processing the whole graphite cylinder as a raw material, the processing cost is high, materials are wasted, and the production period of the graphite material is long. At present, a whole cylinder or a spliced cylinder made of carbon materials, such as an inner cylinder for a single crystal thermal field with publication number CN210974930U, is available in the market, and mainly consists of carbon thin sheets, so that the service life is short, and the carbon thin sheets are not utilized in large-scale production. The thick carbon cylinders are not firm in structure and easy to loosen, the protection force is not enough, the service life is short, gaps among the splicing strips are large, heat loss is serious during use, energy consumption is high, and the like.

SUMMERY OF THE UTILITY MODEL

Based on the above, in order to solve the problems of infirm structure, serious heat loss and short service life of the inner cylinder in the prior art, the utility model provides a carbon-carbon cylinder for a single crystal furnace, which has the following specific technical scheme:

a carbon-carbon cylinder for a single crystal furnace comprises a first pressing ring, a second pressing ring, a plurality of supporting columns and a plurality of connecting strips, wherein a plurality of first dovetail grooves and a plurality of second dovetail grooves are formed in the first pressing ring in the circumferential direction, a plurality of third dovetail grooves and a plurality of fourth dovetail grooves are formed in the second pressing ring in the circumferential direction, the plurality of first dovetail grooves are arranged at intervals, the plurality of second dovetail grooves are arranged between two adjacent first dovetail grooves, the plurality of third dovetail grooves are arranged at intervals, and the plurality of fourth dovetail grooves are arranged between two adjacent third dovetail grooves;

the plurality of first dovetail grooves and the plurality of third dovetail grooves are correspondingly arranged in a matched manner one by one, and the plurality of second dovetail grooves and the plurality of fourth dovetail grooves are correspondingly arranged in a matched manner one by one; two ends of the support columns are respectively and fixedly connected with the first dovetail groove and the third dovetail groove in a matched manner, and two ends of the support columns are respectively and fixedly connected with the second dovetail groove and the fourth dovetail groove in a matched manner;

the plurality of supporting columns and the plurality of connecting strips are enclosed to form a cylinder.

Foretell a carbon section of thick bamboo that single crystal growing furnace was used, overall structure equipment is convenient, uses the tenon fourth of the twelve earthly branches structure of dovetail to connect fixedly moreover, and overall structure is firm difficult not hard up, and the protection dynamics is enough, long service life, and the junction between each structure leaves the seam minimum to guaranteed that the heat loss is not big when using, effectively reduced the energy consumption, had fine practicality.

Further, the slot angle of the slot of the first dovetail groove, the slot angle of the slot of the second dovetail groove, the slot angle of the slot of the third dovetail groove, and the slot angle of the slot of the fourth dovetail groove are all 40 ° to 70 °.

Further, the structure of each notch is the same.

Furthermore, the end parts of the support columns and the end parts of the connecting strips are both of a trapezoidal structure, and the trapezoidal structures are matched with the notches.

Further, the first dovetail groove and the third dovetail groove are provided with threaded holes along the radial direction, and the end part of the support column is provided with through holes in a matching manner.

Further, the first dovetail groove and the second dovetail groove are arranged on the periphery of the first pressure ring, and the third dovetail groove and the fourth dovetail groove are arranged on the periphery of the second pressure ring.

Further, each the both sides of support column are provided with first triangle convex structure and first triangle concave structure respectively, each the both sides of connecting strip are provided with second triangle convex structure and second triangle concave structure respectively, first triangle convex structure with second triangle convex structure is the same, first triangle concave structure with second triangle concave structure is the same, works as the support column with when the connecting strip is adjacent, first triangle convex structure with second triangle concave structure looks adaptation is connected, first triangle concave structure with second triangle convex structure looks adaptation is connected, and is two liang when the connecting strip is adjacent, second triangle convex structure with second triangle concave structure looks adaptation is connected.

Further, the included angle of the triangular convex structure and the included angle of the triangular concave structure are both 100-130 degrees.

Further, the first pressure ring and the second pressure ring are of an integrated structure.

Further, first clamping ring comprises a plurality of circular arc strips, and the both ends of each circular arc strip respectively with the axis looks butt of two adjacent support columns.

Drawings

The utility model will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

FIG. 1 is a schematic structural view of a carbon cartridge for a single crystal furnace according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the structure of a first pressure ring of a carbon canister for single crystal furnace according to an embodiment of the present invention;

FIG. 3 is a schematic view showing the structure of a second pressure ring of a carbon canister for single crystal furnace according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic structural view of a support column of a carbon canister for a single crystal furnace according to one embodiment of the present invention;

FIG. 6 is a second schematic structural view of a support column of a carbon canister for a single crystal furnace according to a second embodiment of the present invention;

FIG. 7 is a view showing one of the structures of a connecting bar of a carbon cylinder for a single crystal furnace according to one embodiment of the present invention;

FIG. 8 is a second schematic view showing the structure of a connecting bar of a carbon cylinder for a single crystal furnace according to a first embodiment of the present invention.

Description of reference numerals:

1. a first pressure ring; 11. a first dovetail groove; 12. a second dovetail groove; 2. a second pressure ring; 21. a third dovetail groove; 22. a fourth dovetail groove; 3. a support pillar; 31. a first triangular convex structure; 32. a first triangular concave structure; 4. a connecting strip; 41. a second triangular convex structure; 42. a second triangular concave structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1 to 8, a carbon cartridge for a single crystal furnace according to an embodiment of the present invention includes a first press ring 1, a second press ring 2, a plurality of support pillars 3, and a plurality of connecting strips 4, where the first press ring 1 is circumferentially provided with a plurality of first dovetail grooves 11 and a plurality of second dovetail grooves 12, the second press ring 2 is circumferentially provided with a plurality of third dovetail grooves 21 and a plurality of fourth dovetail grooves 22, the plurality of first dovetail grooves 11 are arranged at intervals, the plurality of second dovetail grooves 12 are arranged between two adjacent first dovetail grooves 11, the plurality of third dovetail grooves 21 are arranged at intervals, and the plurality of fourth dovetail grooves 22 are arranged between two adjacent third dovetail grooves 21;

the plurality of first dovetail grooves 11 are correspondingly arranged with the plurality of third dovetail grooves 21 in a matched manner, and the plurality of second dovetail grooves 12 are correspondingly arranged with the plurality of fourth dovetail grooves 22 in a matched manner; two ends of the plurality of support columns 3 are respectively and fixedly connected with the first dovetail groove 11 and the third dovetail groove 21 in a matching manner, and two ends of the plurality of support columns 3 are respectively and fittingly inserted into the second dovetail groove 12 and the fourth dovetail groove 22 in a matching manner;

a plurality of the supporting columns 3 and a plurality of the connecting strips 4 are enclosed to form a cylinder.

In one embodiment, the slot angle of the slot of the first dovetail groove 11, the slot angle of the slot of the second dovetail groove 12, the slot angle of the slot of the third dovetail groove 21, and the slot angle of the slot of the fourth dovetail groove 22 are each 40 ° to 70 °.

In one embodiment, each of the notches is identical in structure.

In one embodiment, the ends of the supporting columns 3 and the ends of the connecting strips 4 are both in a trapezoidal structure, and the trapezoidal structure is matched with the notches.

Through the design of the notches and the trapezoid structures, the connection strength between the support column 3 and the connection strip 4 and the first pressing ring 1 and the second pressing ring 2 can be enhanced, so that deformation and durability are avoided.

In one embodiment, the first dovetail groove 11 and the third dovetail groove 21 are both provided with threaded holes along the radial direction, and the end of the support column 3 is provided with through holes in a matching manner. Pass through the bolt in proper order the through-hole and the screw hole, thereby will the tip of support column 3 respectively with first clamping ring 1 and 2 fixed connection of second clamping ring, through this design, can reduce the use amount of bolt, guaranteed holistic structural stability simultaneously.

In one embodiment, each two sides of the supporting column 3 are respectively provided with a first triangular convex structure 31 and a first triangular concave structure 32, each two sides of the connecting strip 4 are respectively provided with a second triangular convex structure 41 and a second triangular concave structure 42, the first triangular convex structure 31 is the same as the second triangular convex structure 41, the first triangular concave structure 32 is the same as the second triangular concave structure 42, when the supporting column 3 is adjacent to the connecting strip 4, the first triangular convex structure 31 is adaptive to the second triangular concave structure 42, the first triangular concave structure 32 is adaptive to the second triangular convex structure 41, and when the connecting strip 4 is adjacent, the second triangular convex structure 41 is adaptive to the second triangular concave structure.

In one embodiment, the included angle of the triangular convex structure and the included angle of the triangular concave structure are both 100-130 degrees.

Specifically, the first triangular convex structure 31 includes a first surface and a second surface which are intersected, the first triangular concave structure 32 includes a third surface and a fourth surface which are intersected, the first surface is connected with a surface of the support pillar 3 which is close to the center of the cylinder, the second surface is connected with a surface of the support pillar 3 which is far away from the center of the cylinder, the third surface is connected with a surface of the support pillar 3 which is close to the center of the cylinder, the fourth surface is connected with a surface of the support pillar 3 which is far away from the center of the cylinder, an intersection angle between the first surface and the second surface is 100-130 °, and an intersection angle between the third surface and the fourth surface is 100-130 °;

the second triangular convex structure 41 comprises a fifth surface and a sixth surface which are intersected, the second triangular concave structure 42 comprises a seventh surface and an eighth surface which are intersected, the fifth surface is connected with one surface, close to the center of the cylinder, of the connecting strip 4, the sixth surface is connected with one surface, far away from the center of the cylinder, of the connecting strip 4, the seventh surface is connected with one surface, close to the center of the cylinder, of the connecting strip 4, the eighth surface is connected with one surface, far away from the center of the cylinder, of the connecting strip 4, the included angle formed by the intersection of the fifth surface and the sixth surface is 100-130 degrees, and the included angle formed by the intersection of the seventh surface and the eighth surface is 100-130 degrees;

preferably, the first triangular convex structure 31 and the second triangular convex structure 41 are both subjected to blunting treatment, so that the whole structure can be conveniently installed while the sealing performance of the whole structure can be ensured, and the whole structure can be ensured to smoothly enclose and cover to form a cylinder.

Through the design, the supporting column 3 is the same as the connecting strip 4 in overall structure, and the difference is only that the supporting column 3 and the connecting strip 4 are provided with holes or not, so that the design cost is reduced, the installation difficulty is reduced, the installation efficiency is improved, and the production efficiency is improved.

In one embodiment, the first dovetail groove 11 and the second dovetail groove 12 are both provided on the outer periphery of the first pressure ring 1, and the third dovetail groove 21 and the fourth dovetail groove 22 are both provided on the outer periphery of the second pressure ring 2. Optionally, the first dovetail groove 11 and the second dovetail groove 12 are both disposed on the inner periphery of the first pressure ring 1, and the third dovetail groove 21 and the fourth dovetail groove 22 are both disposed on the inner periphery of the second pressure ring 2. By arranging all the dovetail grooves on the same side, the machining cost can be reduced.

In one embodiment, the first compression ring 1 and the second compression ring 2 are both of an integral structure. The design is suitable for the assembly of a small carbon-carbon cylinder.

In one embodiment, the first compression ring 1 is composed of a plurality of arc strips, and two ends of each arc strip are respectively abutted to the central axes of two adjacent support columns 3. Through this design, can make things convenient for the equipment of a large-scale carbon section of thick bamboo, avoid the clamping ring of an organic whole structure to be difficult to machine-shaping, lead to manufacturing cost to increase.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A carbon-carbon cylinder for a single crystal furnace is characterized by comprising a first pressing ring, a second pressing ring, a plurality of supporting columns and a plurality of connecting strips, wherein the first pressing ring is provided with a plurality of first dovetail grooves and a plurality of second dovetail grooves along the circumferential direction, the second pressing ring is provided with a plurality of third dovetail grooves and a plurality of fourth dovetail grooves along the circumferential direction, the plurality of first dovetail grooves are arranged at intervals, the plurality of second dovetail grooves are arranged between two adjacent first dovetail grooves, the plurality of third dovetail grooves are arranged at intervals, and the plurality of fourth dovetail grooves are arranged between two adjacent third dovetail grooves;

2. A carbon-carbon cartridge for a single crystal growing furnace according to claim 1, wherein a slot angle of a slot of said first dovetail groove, a slot angle of a slot of said second dovetail groove, a slot angle of a slot of said third dovetail groove, and a slot angle of a slot of said fourth dovetail groove are each 40 ° to 70 °.

3. A carbon cartridge for a single crystal furnace as set forth in claim 2, wherein said notches are identical in structure.

4. A carbon cartridge for a single crystal furnace as claimed in claim 3, wherein ends of a plurality of said supporting columns and ends of a plurality of said connecting strips are each of a trapezoidal structure, and said trapezoidal structures are each adapted to said notch.

5. A carbon cartridge for a single crystal furnace according to claim 1, wherein said first dovetail groove and said third dovetail groove are each provided with a threaded hole in a radial direction, and an end portion of said support post is fittingly provided with a through hole.

6. A carbon cartridge for a single crystal growing furnace according to claim 1, wherein the first dovetail groove and the second dovetail groove are provided on an outer periphery of the first pressure ring, and the third dovetail groove and the fourth dovetail groove are provided on an outer periphery of the second pressure ring.

7. The carbon-carbon cartridge for a single crystal furnace as claimed in claim 1, wherein each of the supporting columns has a first triangular convex structure and a first triangular concave structure on both sides thereof, and each of the connecting strips has a second triangular convex structure and a second triangular concave structure on both sides thereof, the first triangular convex structure is identical to the second triangular convex structure, the first triangular concave structure is identical to the second triangular concave structure, the first triangular convex structure is fittingly connected to the second triangular concave structure when the supporting column is adjacent to the connecting strip, the first triangular concave structure is fittingly connected to the second triangular convex structure, and the second triangular convex structure is fittingly connected to the second triangular concave structure when two connecting strips are adjacent to each other.

8. A carbon-carbon canister for a single crystal furnace as claimed in claim 7, wherein the included angle of said triangular convex structure and the included angle of said triangular concave structure are each 100 ° to 130 °.

9. A carbon-carbon cartridge for a single crystal growing furnace according to any one of claims 1 to 8, wherein said first pressure ring and said second pressure ring are of an integral structure.

10. A carbon-carbon cartridge for a single crystal growing furnace according to any one of claims 1 to 8, wherein said first pressing ring is formed of a plurality of arc strips, and both ends of each arc strip abut against the central axes of the adjacent two supporting columns, respectively.