Spliced auxiliary heater

Abstract

The utility model provides a spliced auxiliary heater. The spliced auxiliary heater mainly comprises spliced heating petals and spliced U-shaped feet. The spliced heating petals and the spliced U-shaped feet are connected through threaded holes, and the structure is compact and stable. And the fillet of the spliced heating petals is designed to be 75-80 degrees, so that the stress concentration is reduced, and the service life is prolonged. The vertical bar and the horizontal bar of the U-shaped foot are equal in sectional area, uniform resistance is guaranteed, and heating efficiency is improved. The spliced heating petals and the U-shaped feet are spliced in a modularized mode, the material consumption and the manufacturing cost are reduced, and meanwhile the spliced structure is convenient to install and maintain. According to the design, the oxygen content in the crystal bar production process is reduced, the crystal bar quality is improved, and wide application prospects are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heater, concretely relates to a spliced auxiliary heater. BACKGROUND

[0002] In the existing single crystal furnace heating mode, usually by main heater and bottom heater are composed. However, in order to pursue higher quality crystal bar production, designed double heater structure, namely on the basis of retaining original main heater, increase an auxiliary heater below main heater, replace traditional bottom heater. This auxiliary heater usually adopts integral structure, although can satisfy the technological demand, but its manufacturing and use cost are higher. Therefore, the urgent need of an improved structure design, to reduce the use cost of enterprise.

[0003] Through the analysis of prior art can see, the integral type structure of current auxiliary heater not only material cost is higher, and its structure design is more complex, the resource consumption in manufacturing process is also bigger. Since the application of auxiliary heater is in single crystal production, any structural improvement not only can reduce the cost, also can improve the single crystal quality, especially reduce the oxygen content in the crystal bar.

[0004] The present application is based on the shortcomings of the existing auxiliary heater, proposes a spliced auxiliary heater, through the splicing design of heating area and U type foot, greatly reduces the use cost, and also can improve the quality of crystal bar in actual use. SUMMARY

[0005] This section aims to outline some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention in order to avoid obscuring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] In view of the following technical problems in the prior art: a spliced auxiliary heater, comprising a plurality of spliced heating petals and spliced U type feet, the overall shape of the spliced U type feet is circular arc, the inner diameter of the spliced U type feet is equal to the inner diameter of the spliced heating petals, and the outer diameter of the spliced U type feet is equal to the outer diameter of the spliced heating petals.

[0007] As a preferred technical scheme of a spliced auxiliary heater, the spliced U type foot comprises a heating petal splicing surface, a U foot transition section, a U foot vertical strip and a U foot horizontal strip, the lower end of the two U foot vertical strips is connected to the U foot horizontal strip, and the upper end of the U foot vertical strip is connected to the heating petal splicing surface through the U foot transition section.

[0008] As a preferred technical solution of the spliced auxiliary heater, the inner side of the U-shaped vertical bar is 12.5° to 15° to the center axis of the spliced U-shaped leg.

[0009] As a preferred technical solution of the spliced auxiliary heater, the outer side of the U-shaped vertical bar is 20° to 25° to the center axis of the spliced U-shaped leg.

[0010] As a preferred technical solution of the spliced auxiliary heater, the cross section of the U-shaped vertical bar and the U-shaped horizontal bar is equal.

[0011] As a preferred technical solution of the spliced auxiliary heater, the threaded holes are provided on the spliced surface of the heating petals, the number of the threaded holes is at least 2, and the positions of the threaded holes are distributed in a diagonal, equilateral triangle or inverted triangle.

[0012] As a preferred technical solution of the spliced auxiliary heater, the number of the rounded corners on the spliced heating petals is 75° to 80°.

[0013] As a preferred technical solution of the spliced auxiliary heater, a heater leg is arranged on the spliced heating petals.

[0014] The spliced auxiliary heater of the present application has significant beneficial effects through the innovative splicing structure design. First, the design of spliced heating petals and spliced U-shaped legs replaces the traditional integrated auxiliary heater, significantly reducing the amount of material used, thereby effectively reducing the manufacturing cost, especially in scenarios where the heater needs to be frequently replaced. Second, the spliced heating petals are designed with a rounded corner of 75° to 80°, reducing stress concentration during heating and avoiding cracking and electric arc problems caused by high temperature, significantly extending the service life of the auxiliary heater. At the same time, the splicing structure ensures the tight connection between the spliced parts, reduces heat loss, and improves the overall heat conduction efficiency.

[0015] In addition, the splicing design makes the heating petals modular, allowing four or more petals to be spliced, enhancing the flexibility of the system and making the installation and maintenance process more convenient. By reasonably configuring the heater leg and U-shaped leg, the interference problem that may occur during installation is greatly reduced. The diagonal or triangular distribution of threaded holes at the splicing site ensures the strength and stability of the splicing part under high temperature, avoiding loosening and deformation problems during long-term use.

[0016] In terms of electrical conductivity, the vertical bar and the horizontal bar of the U-shaped leg have equal cross-sectional areas, ensuring uniform resistance and preventing local overheating. At the same time, this splicing design reduces oxygen intake, thereby reducing the oxygen content of the crystal bar and improving the quality of the crystal bar. Therefore, the present application is superior to the traditional integrated heater in terms of cost reduction, structural strength, service life extension and product quality improvement, and has great application value and market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the concept of the present application. Among them:

[0018] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0019] Fig. 2 is a schematic diagram of the structure of the spliced heating petals of the present application;

[0020] Fig. 3 is a schematic diagram of the structure of the spliced U-shaped feet of the present application;

[0021] Fig. 4 is a schematic diagram of the structure of the heating legs of the present application.

[0022] Reference signs: 100, spliced heating petals; 101, rounded corners of the spliced heating petals; 200, spliced U-shaped feet; 201, heating petal splicing surface; 202, U-shaped foot transition section; 203, U-shaped foot vertical bars; 203a, inner side of the U-shaped foot vertical bars; 203b, outer side of the U-shaped foot vertical bars; 204, U-shaped foot horizontal bars; 300, heater legs. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the concept of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0026] Thirdly, the utility model is described in detail in combination with the schematic diagram, in the detailed description of the utility model embodiment, for the convenience of illustration, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of the utility model protection here. In addition, the three-dimensional spatial dimension of length, width and depth should be included in actual production.

[0027] Please refer to Figs. 1 to 4 As shown in the figure, a splicing auxiliary heater comprises a plurality of splicing heating petals and splicing U-shaped feet, the splicing heating petals and the splicing U-shaped feet are combined through a splicing structure to realize the overall heating function. The overall splicing U-shaped foot is designed in a circular arc shape, the inner diameter of the splicing U-shaped foot is equal to the inner diameter of the splicing heating petals, and the outer diameter of the splicing U-shaped foot is consistent with the outer diameter of the splicing heating petals, so as to ensure the uniformity of the heating area and the integrity of the structure.

[0028] In order to improve the strength of the splicing structure, the splicing part of the splicing heating petals is designed with a concave round corner to avoid the sparking phenomenon caused by current concentration overheating, thereby prolonging the service life of the heater. The connection between the splicing heating petals and the splicing U-shaped feet is realized by means of a plurality of threaded holes, wherein the threaded holes can be distributed in a diagonal or equilateral / triangular manner to ensure the strength and stability of the splicing part. The entire splicing structure can be adjusted to a four-petal or multi-petal splicing structure according to the use requirements, which greatly improves the flexibility of the auxiliary heater and reduces the manufacturing cost. Compared with the traditional integrated auxiliary heater, the design of the splicing structure not only reduces the material cost, but also effectively improves the uniformity of heating, reduces the inhalation of oxygen, and improves the quality of the crystal bar. In addition, the design of the U-shaped foot enables the auxiliary heater to not interfere with the foot structure of the main heater during installation, further optimizing the overall performance of the system.

[0029] The splicing U-shaped foot comprises a heating petal splicing surface, a U-shaped foot transition section, a U-shaped foot vertical strip and a U-shaped foot horizontal strip, and the overall design aims to improve the structural strength and stability. The lower ends of the two U-shaped foot vertical strips are connected to the U-shaped foot horizontal strip to form a firm support structure. The upper ends of the U-shaped foot vertical strips are connected to the heating petal splicing surface through the U-shaped foot transition section to ensure uniform conduction of heat energy and provide a more flexible connection method for the splicing structure. In order to optimize the splicing strength and resistance uniformity, the inner side of the U-shaped foot vertical strip is at an angle of 12.5° to 15° with the central axis of the splicing U-shaped foot, and the outer side is at an angle of 20° to 25° with the central axis. This angle design helps to reduce local stress concentration, prevent deformation problems caused by thermal expansion and contraction, and prolong the service life of the splicing auxiliary heater. At the same time, the cross-sectional area of the U-shaped foot vertical strip and the U-shaped foot horizontal strip remains equal to ensure the resistance uniformity and strength stability of the overall structure.

[0030] The threaded holes provided on the splicing surface of the heating segment are used to realize the splicing and fixing of each component. The number of threaded holes is at least 2, and the specific distribution mode can be adjusted according to actual requirements. Common distribution modes include diagonal, equilateral triangle or inverted triangle layout. This diversified threaded hole distribution form can ensure the structural stability during splicing and avoid the problems of splicing loosening or deformation in a high-temperature working environment.

[0031] The design angle of the fillet of the spliced heating segment is 75° to 80°. This design effectively reduces the problem of stress concentration and crack caused by thermal stress, and improves the durability of the heating segment in a high-temperature working environment. The setting of the fillet not only optimizes the heat conduction efficiency of the heating segment, but also effectively prevents the occurrence of electric arc sparking phenomenon, thereby prolonging the overall service life of the heater. The spliced heating segment is provided with a heater leg. The heater leg is used to fix the spliced heating segment to the main structure and provide reliable support during heat conduction. The heater leg and the spliced heating segment are fastened and connected through threaded holes, which ensures stability in a high-temperature environment and avoids problems such as loosening or uneven heat conduction. In addition, the material of the heater leg needs to have high-temperature oxidation resistance and good electrical conductivity to ensure that the entire spliced heating structure can work stably during long-time heating.

[0032] The embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be covered in the scope of the claims of the present application.

Claims

1. A splice auxiliary heater characterized by, The whole of the plurality of spliced heating petals and the plurality of spliced U-shaped feet is circular arc-shaped, the inner diameter of the spliced U-shaped feet is equal to the inner diameter of the spliced heating petals, and the outer diameter of the spliced U-shaped feet is equal to the outer diameter of the spliced heating petals; the spliced U-shaped feet comprise a heating petal splicing surface, a U-shaped foot transition section, a U-shaped foot vertical strip, and a U-shaped foot horizontal strip, the lower ends of two U-shaped foot vertical strips are connected to the U-shaped foot horizontal strip, and the upper ends of the U-shaped foot vertical strips are connected to the heating petal splicing surface through the U-shaped foot transition section.

2. The splice auxiliary heater of claim 1, wherein, The inner side of the U-shaped foot vertical strip is 12.5° to 15° to the central axis of the spliced U-shaped foot.

3. The splice auxiliary heater of claim 1, wherein, The outer side of the U-shaped foot vertical strip is 20° to 25° to the central axis of the spliced U-shaped foot.

4. The splice auxiliary heater of claim 1, wherein, The cross sections of the U-shaped foot vertical strip and the U-shaped foot horizontal strip are equal.

5. The patch auxiliary heater of claim 1, wherein, The heating petal splicing surface is provided with threaded holes, the number of the threaded holes is at least 2, and the positions of the plurality of threaded holes are distributed in a diagonal, equilateral triangle, or inverted triangle manner.

6. The patch auxiliary heater of claim 1, wherein, The number of the round corners on the spliced heating petals is 75° to 80°.

7. The patch auxiliary heater of claim 1, wherein, The spliced heating petals are provided with heater legs.

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