An apparatus for drawing silicon ingots and boules

By setting a rotatable and liftable auxiliary chamber at the top of the main furnace chamber, the problem of the incompatibility between silicon core furnaces and single crystal furnaces is solved, enabling flexible production of silicon cores and crystal rods and reducing replacement and modification costs.

CN224678214UActive Publication Date: 2026-08-25INNER MONGOLIA TONGWEI HIGH PURITY CRYSTAL SILICON CO LTD
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Patent Information

Application Number
CN202521933772.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-08-25
Estimated Expiration
2035-09-09

AI Technical Summary

Technical Problem

Existing silicon core furnaces and single crystal furnaces are not interchangeable, and frequent replacements or modifications result in high labor and financial costs.

Method used

Two auxiliary chambers are set at the top of the main furnace chamber. The position of the auxiliary chambers can be changed by rotating and lifting components to adapt to the production needs of different products.

Benefits of technology

It enables flexible switching between producing silicon cores and ingots on the same furnace, reducing labor and capital costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a device for drawing silicon core and crystal bar relates to polysilicon production technical field. The device, include: rotating device, lifting assembly, installation component, silicon core drawing vice room and crystal bar drawing vice room. Rotating device sets up in one side of main furnace room. Lifting assembly is installed on rotating device. Installation component is installed on lifting assembly. Silicon core drawing vice room is installed on installation component. Crystal bar drawing vice room is installed on installation component, and silicon core drawing vice room is installed with crystal bar drawing vice room after installation and is set up after staggered. The rotating device includes: mounting bracket, rotating plate and rotating motor. Mounting bracket is installed in one side of main furnace room. Rotating plate is rotatably installed on mounting bracket. Rotating motor is installed on mounting bracket, and the output shaft of rotating motor is connected with rotating plate. The utility model sets up two vice rooms through the top of main furnace room, and realizes the production of different products through the position transformation of two vice rooms.
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Description

Technical Field

[0001] This utility model relates to the field of polycrystalline silicon production technology, and in particular to an apparatus for pulling silicon cores and ingots. Background Technology

[0002] Currently, silicon core furnaces and single crystal furnaces on the market are not interchangeable. The same furnace can only be used to pull single crystals or pull silicon cores. Frequent replacements or modifications will result in a large amount of labor and capital costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an apparatus for pulling silicon cores and ingots. By setting two auxiliary chambers at the top of the main furnace chamber, different products can be produced by changing the position of the two auxiliary chambers.

[0004] The technical solution adopted in this utility model is:

[0005] An apparatus for pulling silicon cores and ingots, comprising:

[0006] The rotating device is located on one side of the main furnace chamber;

[0007] A lifting assembly is mounted on the rotating device;

[0008] The mounting component is installed on the lifting component;

[0009] A silicon core pulling chamber is mounted on the mounting assembly;

[0010] A crystal ingot pulling chamber is mounted on the mounting assembly, and the silicon core pulling chamber is offset from the crystal ingot pulling chamber.

[0011] The rotating device includes:

[0012] The mounting bracket is installed on one side of the main furnace chamber;

[0013] A rotating plate is rotatably mounted on the mounting bracket.

[0014] A rotating motor is mounted on the mounting bracket, and the output shaft of the rotating motor is connected to the rotating plate.

[0015] Optionally, the mounting components include:

[0016] The first mounting mechanism is mounted on the lifting assembly;

[0017] The second mounting mechanism is mounted on the lifting assembly.

[0018] Optionally, the first mounting mechanism includes:

[0019] A connecting plate, one end of which is provided with a plurality of connectors, which are mounted on the lifting assembly;

[0020] A fixing frame is disposed at the other end of the connecting plate, and the fixing frame is connected to the silicon core pulling chamber or the crystal rod pulling chamber.

[0021] Optionally, the second mounting mechanism includes:

[0022] A mounting plate is installed on the lifting assembly. The end of the mounting plate away from the mounting frame is provided with a mounting opening. The silicon core pulling chamber or the crystal rod pulling chamber is installed in the mounting opening.

[0023] A fixing plate is installed on top of the mounting plate, and the fixing plate is connected to the silicon core pulling chamber or the crystal rod pulling chamber.

[0024] Optionally, the lifting assembly includes:

[0025] A first lifting mechanism is mounted on the rotating plate, and a first mounting mechanism or a second mounting mechanism is mounted on the first lifting mechanism;

[0026] A second lifting mechanism is installed on the rotating plate, and the first mounting mechanism or the second mounting mechanism is installed on the second lifting mechanism;

[0027] The first lifting mechanism and the second lifting mechanism are installed in a staggered manner.

[0028] Optionally, the first lifting mechanism is a lead screw assembly, and the first mounting mechanism or the second mounting mechanism is connected to the lead screw assembly's nut.

[0029] Optionally, the second lifting mechanism is a hydraulic lifting rod, which is mounted on the mounting frame, and the first or second mounting mechanism is mounted on the movable end of the hydraulic lifting rod.

[0030] Optionally, the apparatus for pulling silicon cores and ingots further includes:

[0031] The controller is electrically connected to the rotating motor and the lifting assembly.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] By setting two auxiliary chambers at the top of the main furnace chamber, the production of different products can be achieved by changing the position of the two auxiliary chambers. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall structure of the device used for pulling silicon cores and ingots.

[0036] Figure 2 A schematic diagram of the structure of the apparatus used for pulling silicon cores and ingots after switching between the silicon core pulling chamber and the ingot pulling chamber.

[0037] Figure 3 This is a schematic diagram of the second installation mechanism.

[0038] Figure label:

[0039] 1. Rotating device; 11. Mounting bracket; 12. Rotating plate; 13. Rotating motor;

[0040] 2. Lifting assembly; 21. First lifting mechanism; 22. Second lifting mechanism;

[0041] 3. Mounting components; 31. First mounting mechanism; 311. Connecting plate; 312. Connector; 313. Fixing bracket; 32. Second mounting mechanism; 321. Mounting plate; 322. Mounting opening; 323. Fixing plate;

[0042] 4. Silicon core pulling chamber;

[0043] 5. Crystal rod pulling chamber;

[0044] 6. Controller. Detailed Implementation

[0045] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0046] In the description of this utility model, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0051] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0052] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an apparatus for pulling silicon cores and ingots, including: a rotating device 1, a lifting assembly 2, a mounting assembly 3, a silicon core pulling sub-chamber 4, and an ingot pulling sub-chamber 5. The rotating device 1 is disposed on one side of the main furnace chamber. The lifting assembly 2 is mounted on the rotating device 1. The mounting assembly 3 is mounted on the lifting assembly 2. The silicon core pulling sub-chamber 4 is mounted on the mounting assembly 3. The ingot pulling sub-chamber 5 is mounted on the mounting assembly 3, and the silicon core pulling sub-chamber 4 and the ingot pulling sub-chamber 5 are offset after installation.

[0053] According to the production plan, either the silicon core pulling sub-chamber 4 or the crystal rod pulling sub-chamber 5 is connected to the main furnace chamber. The switching between the silicon core pulling sub-chamber 4 and the crystal rod pulling sub-chamber 5 is achieved through the cooperation of the lifting assembly 2 and the rotating assembly.

[0054] More specifically, the lifting assembly 2, through the mounting assembly 3, raises the silicon core pulling chamber 4 or the ingot pulling chamber 5, causing the silicon core pulling chamber 4 or the ingot pulling chamber 5 to disengage from the main furnace chamber. Then, the rotating device 1 drives it to rotate, and after rotating a certain angle, the positions of the silicon core pulling chamber 4 and the ingot pulling chamber 5 are exchanged. After the exchange, the lifting assembly 2 lowers it to connect with the main furnace chamber.

[0055] If the main furnace chamber is connected to the silicon core pulling sub-chamber 4, but crystal rods need to be produced according to production needs, the lifting assembly 2 drives the silicon core pulling sub-chamber 4 to rise. After it rises to the correct position, the rotating device 1 drives the silicon core pulling sub-chamber 4 and the crystal rod pulling sub-chamber 5 to exchange positions, so that the crystal rod pulling sub-chamber 5 is located at the top of the main furnace chamber. Then the lifting assembly 2 drives the crystal rod pulling sub-chamber 5 to descend and connect it with the main furnace chamber.

[0056] It should be noted that the silicon core pulling chamber 4 and the crystal rod pulling chamber 5 in this embodiment are existing structures, and their specific structures and working principles will not be described in detail here.

[0057] To facilitate the positional exchange between the silicon core pulling chamber 4 and the ingot pulling chamber 5, the rotating device 1 includes a mounting frame 11, a rotating plate 12, and a rotating motor 13. The mounting frame 11 is installed on one side of the main furnace chamber. The rotating plate 12 is rotatably mounted on the mounting frame 11. The rotating motor 13 is mounted on the mounting frame 11, and the output shaft of the rotating motor 13 is connected to the rotating plate 12.

[0058] In use, the lifting assembly 2 is installed on the rotating plate 12, and the rotating plate 12 is driven to rotate by the rotating motor 13.

[0059] When it is necessary to switch between the silicon core pulling chamber 4 and the crystal rod pulling chamber 5, the rotary motor 13 installed on the top of the mounting frame 11 drives the rotary plate 12 installed on the output shaft of the rotary motor 13 to rotate, thereby switching the positions of the silicon core pulling chamber 4 and the crystal rod pulling chamber 5 during the rotation.

[0060] By installing a rotatable auxiliary chamber at the top of the main furnace chamber, the problem of needing to modify the furnace due to production requirements can be solved.

[0061] In one embodiment, such as Figure 1 and Figure 2 As shown, to facilitate the connection between the silicon core pulling chamber 4 and the ingot pulling chamber 5 and the lifting assembly 2, the mounting assembly 3 includes: a first mounting mechanism 31 and a second mounting mechanism 32. The first mounting mechanism 31 is mounted on the lifting assembly 2 and is connected to either the silicon core pulling chamber 4 or the ingot pulling chamber 5. The second mounting mechanism 32 is connected to either the ingot pulling chamber 5 or the silicon core pulling chamber 4.

[0062] More specifically, when the silicon core pulling chamber 4 is installed on the first mounting mechanism 31, the ingot pulling chamber 5 is installed on the second mounting mechanism 32. Conversely, when the ingot pulling chamber 5 is installed on the first mounting mechanism 31, the silicon core pulling chamber 4 is installed on the second mounting mechanism 32.

[0063] In one embodiment, such as Figure 1 and Figure 2 As shown, to avoid the distance between the ingot pulling chamber 5 or the silicon core pulling chamber 4 and the mounting frame 11 being too close, the first mounting mechanism 31 includes a connecting plate 311 and a fixing frame 313. One end of the connecting plate 311 is provided with multiple connectors 312, which are connected to the movable end of the lifting assembly 2. The fixing frame 313 is located at the other end of the connecting plate 311, and the silicon core pulling chamber 4 or the ingot pulling chamber 5 is connected to the fixing frame 313.

[0064] like Figure 1 , Figure 2 and Figure 3As shown, the second mounting mechanism 32 includes a mounting plate 321 and a fixing plate 323. The mounting plate 321 is mounted on the movable end of the lifting assembly 2, and a mounting opening 322 is provided at the end of the mounting plate 321 away from the mounting frame 11. The silicon core pulling chamber 4 or the crystal ingot pulling chamber 5 is installed in the mounting opening 322. The fixing plate 323 is mounted on the top of the mounting plate 321, and the fixing plate 323 is connected to the outer wall of the silicon core pulling chamber 4 or the crystal ingot pulling chamber 5.

[0065] In one embodiment, such as Figure 1 and Figure 2 As shown, to facilitate the vertical movement of the silicon core pulling chamber 4 and the ingot pulling chamber 5 respectively, the lifting mechanism includes a first lifting mechanism 21 and a second lifting mechanism 22. The first lifting mechanism 21 is mounted on the rotating plate 12, and a first mounting mechanism 31 or a second mounting mechanism 32 is mounted on the first lifting mechanism 21. The second lifting mechanism 22 is mounted on the rotating plate 12, and a second mounting mechanism 32 or a first mounting mechanism 31 is mounted on the second lifting mechanism 22. The first lifting mechanism 21 and the second lifting mechanism 22 are staggered after installation.

[0066] In one implementation, such as Figure 1 and Figure 2 As shown, the first lifting mechanism 21 is a lead screw pair, and the first mounting mechanism 31 or the second mounting mechanism 32 is connected to the lead screw pair nut.

[0067] In another embodiment, the second lifting mechanism 22 is a hydraulic lifting rod, which is mounted on the mounting frame 11, and the first mounting mechanism 31 or the second mounting mechanism 32 is mounted on the movable end of the hydraulic lifting rod.

[0068] In another embodiment, both the first lifting mechanism 21 and the second lifting mechanism 22 can be a lead screw pair or a hydraulic lifting rod.

[0069] In one embodiment, such as Figure 1 and Figure 2 As shown, in order to facilitate automatic control, the device for pulling silicon cores and ingots further includes: a controller 6, which is electrically connected to the rotating motor 13 and the lifting assembly 2.

[0070] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An apparatus for pulling silicon cores and ingots, characterized in that, include: The rotating device is located on one side of the main furnace chamber; A lifting assembly is mounted on the rotating device; The mounting component is installed on the lifting component; A silicon core pulling chamber is mounted on the mounting assembly; A crystal ingot pulling chamber is mounted on the mounting assembly, and the silicon core pulling chamber is offset from the crystal ingot pulling chamber. The rotating device includes: The mounting bracket is installed on one side of the main furnace chamber; A rotating plate is rotatably mounted on the mounting bracket. A rotating motor is mounted on the mounting bracket, and the output shaft of the rotating motor is connected to the rotating plate.

2. The apparatus for pulling silicon cores and ingots according to claim 1, characterized in that, The installation components include: The first mounting mechanism is mounted on the lifting assembly; The second mounting mechanism is mounted on the lifting assembly.

3. The apparatus for pulling silicon cores and ingots according to claim 2, characterized in that, The first installation mechanism includes: A connecting plate, one end of which is provided with a plurality of connectors, which are mounted on the lifting assembly; A fixing frame is disposed at the other end of the connecting plate, and the fixing frame is connected to the silicon core pulling chamber or the crystal rod pulling chamber.

4. The apparatus for pulling silicon cores and ingots according to claim 2, characterized in that, The second installation mechanism includes: A mounting plate is installed on the lifting assembly. The end of the mounting plate away from the mounting frame is provided with a mounting opening. The silicon core pulling chamber or the crystal rod pulling chamber is installed in the mounting opening. A fixing plate is installed on top of the mounting plate, and the fixing plate is connected to the silicon core pulling chamber or the ingot pulling chamber.

5. The apparatus for pulling silicon cores and ingots according to claim 2, characterized in that, The lifting assembly includes: A first lifting mechanism is mounted on the rotating plate, and a first mounting mechanism or a second mounting mechanism is mounted on the first lifting mechanism; A second lifting mechanism is installed on the rotating plate, and the first mounting mechanism or the second mounting mechanism is installed on the second lifting mechanism; The first lifting mechanism and the second lifting mechanism are installed in a staggered manner.

6. The apparatus for pulling silicon cores and ingots according to claim 5, characterized in that, The first lifting mechanism is a lead screw assembly, and the first mounting mechanism or the second mounting mechanism is connected to the lead screw assembly's nut.

7. The apparatus for pulling silicon cores and ingots according to claim 5, characterized in that, The second lifting mechanism is a hydraulic lifting rod, which is installed on the mounting frame. The first or second mounting mechanism is installed on the movable end of the hydraulic lifting rod.

8. The apparatus for pulling silicon cores and ingots according to claim 1, characterized in that, The apparatus for pulling silicon cores and ingots further includes: The controller is electrically connected to the rotating motor and the lifting assembly.