Single crystal growth device

Abstract

The utility model relates to the technical field of crystal growth and discloses a single crystal growth device which comprises a shell, a heater is arranged on the lower side in the shell, a heat preservation box is arranged on the upper side of the heater, a crucible is arranged in the heat preservation box, lifting devices are arranged on the two sides of the heat preservation box, and a lifting device is arranged above the crucible. The single crystal growth device has the advantages that through the monitoring devices, the problems that according to an existing single crystal growth device, single crystals are observed only through a window, the growth condition of the single crystals cannot be accurately observed, problems in the single crystal growth process cannot be found in time, and the growth process cannot be corrected in time are solved; and the yield and the product quality are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal growth, in particular to a single crystal growth device. Background Art

[0002] Single crystal growth refers to the process of dissolving raw materials in a solvent under high temperature and high pressure. Due to temperature convection, the solution reaches supersaturation at the seed crystal site, causing the seed crystal to grow. The circulation of the solution causes the raw materials to dissolve continuously and the crystal to grow continuously. The main purpose of this method is to grow crystals. Generally speaking, this method can be used for many oxide single crystals.

[0003] The existing single crystal growth device only observes the single crystal through a window, and is unable to accurately observe the growth of the single crystal, and is unable to promptly discover problems in the single crystal growth process and promptly correct the growth process, resulting in reduced yield and product quality. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a single crystal growth device, which avoids the problem that the existing single crystal growth device only observes the single crystal through a window, cannot accurately observe the growth of the single crystal, cannot promptly discover problems in the single crystal growth process and correct the growth process in time, resulting in reduced yield and product quality.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a single crystal growth device, comprising a shell, a heater is arranged at the lower side of the shell, a heat preservation box is arranged at the upper side of the heater, a crucible is arranged inside the heat preservation box, lifting devices are arranged at both sides of the heat preservation box, a pulling device is arranged above the crucible, and monitoring devices are arranged on both sides of the shell near the pulling device;

[0006] The monitoring device includes a fixed column fixedly connected to the shell, a rotating shaft 1 is arranged inside the fixed column, one end of the rotating shaft 1 is connected to a driving motor 3, a gear 1 is fixedly connected to the middle of the rotating shaft 1, the gear 1 is meshingly connected to the gear 2, the middle of the gear 2 is rotatably connected to the rotating shaft 2, and a camera is fixedly connected to one side of the gear 2.

[0007] As an improvement, the lifting device includes a driving motor 1 fixed inside the shell, the output end of the driving motor 1 is connected to a sleeve, the inner thread of the sleeve is connected to a screw rod, and a support block is fixed to the top of the screw rod.

[0008] As an improvement, the support block is fixedly connected to the heat preservation box.

[0009] As an improvement, the lifting device includes an electric push rod fixed on the upper side of the shell, the top of the electric push rod is fixedly connected to a support plate, a second drive motor is fixed to the middle part of the upper side of the support plate, and the output end of the second drive motor is connected to the lifting rod.

[0010] As an improvement, both ends of the support plate pass through the inner side of the shell.

[0011] As an improvement, a heat-insulating layer is provided inside the heat-insulating box.

[0012] The advantages of the utility model compared with the prior art are: through the monitoring device, it avoids the problem that the existing single crystal growth device only observes the single crystal through the window, cannot accurately observe the growth of the single crystal, cannot promptly discover problems in the single crystal growth process and promptly correct the growth process, resulting in reduced yield and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a partial structural schematic diagram of the utility model.

[0015] As shown in the figure: 1. Shell; 2. Heater; 3. Lifting device; 301. Drive motor 1; 302. Sleeve; 303. Screw; 304. Support block; 4. Insulation box; 5. Crucible; 6. Lifting device; 601. Electric push rod; 602. Support plate; 603. Drive motor 2; 604. Lifting rod; 7. Monitoring device; 701. Fixed column; 702. Drive motor 3; 703. Shaft 1; 704. Gear 1; 705. Gear 2; 706. Shaft 2; 707. Camera. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] In the specific implementation of the utility model, Figure 1 to Figure 2 A single crystal growth device, comprising a shell 1, a heater 2 is arranged at the lower side of the shell 1, a heat preservation box 4 is arranged at the upper side of the heater 2, a heat preservation layer is arranged inside the heat preservation box 4, a crucible 5 is arranged inside the heat preservation box 4, lifting devices 3 are arranged at both sides of the heat preservation box 4, a pulling device 6 is arranged above the crucible 5, and monitoring devices 7 are arranged at both sides of the shell 1 near the pulling device 6;

[0018] The lifting device 3 includes a driving motor 301 fixed inside the housing 1, the output end of the driving motor 301 is connected to a sleeve 302, the sleeve 302 is internally threadedly connected to a screw 303, a support block 304 is fixed to the top of the screw 303, and the support block 304 is fixedly connected to the heat preservation box 4;

[0019] During the implementation of the utility model, the heater 2 is started so that the heater 2 heats the crucible 5 and keeps it warm through the heat preservation box 4. When the temperature needs to be lowered, the drive motor 301 is started to rotate the sleeve 302, driving the threaded screw 303 to push the heat preservation box 4 up through the support block 304 and away from the heater 2.

[0020] The lifting device 6 includes an electric push rod 601 fixed to the upper side of the housing 1, a support plate 602 is fixedly connected to the top of the electric push rod 601, both ends of the support plate 602 pass through the inner side of the housing 1, a second drive motor 603 is fixed to the middle of the upper side of the support plate 602, and a lifting rod 604 is connected to the output end of the second drive motor 603;

[0021] During the implementation of the utility model, the electric push rod 601 is started to drive the lifting rod 604 to move up and down, and the driving motor 2 603 is started to rotate the lifting rod 604, so as to facilitate the rotation and lifting of the single crystal.

[0022] The monitoring device 7 includes a fixed column 701 fixedly connected to the housing 1, a rotating shaft 1 703 is arranged inside the fixed column 701, one end of the rotating shaft 1 703 is connected to a driving motor 3 702, a gear 1 704 is fixedly connected to the middle of the rotating shaft 1 703, the gear 1 704 is meshedly connected to a gear 2 705, the middle of the gear 2 705 is rotatably connected to a rotating shaft 2 706, and a camera 707 is fixedly connected to one side of the gear 2 705;

[0023] During the implementation of the utility model, by starting the driving motor three 702, the rotating shaft one 703 drives the gear one 704 to rotate, so that the meshing gear two 705 rotates, drives the camera 707 to tilt, and monitors the conditions of various parts of the single crystal.

[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A single crystal growth device, characterized in that: The invention comprises a shell (1), a heater (2) is arranged on the lower side of the shell (1), a heat preservation box (4) is arranged on the upper side of the heater (2), a crucible (5) is arranged inside the heat preservation box (4), lifting devices (3) are arranged on both sides of the heat preservation box (4), a lifting device (6) is arranged above the crucible (5), and monitoring devices (7) are arranged on both sides of the shell (1) near the lifting device (6); The monitoring device (7) comprises a fixed column (701) fixedly connected to the housing (1), a rotating shaft (703) is arranged inside the fixed column (701), one end of the rotating shaft (703) is connected to a driving motor (702), a gear (704) is fixedly connected to the middle of the rotating shaft (703), the gear (704) is meshingly connected to a gear (705), the middle of the gear (705) is rotatably connected to a rotating shaft (706), and a camera (707) is fixedly connected to one side of the gear (705).

2. A single crystal growth device according to claim 1, characterized in that: The lifting device (3) comprises a driving motor (301) fixed inside the housing (1); the output end of the driving motor (301) is connected to a sleeve (302); the sleeve (302) is internally threadedly connected to a screw rod (303); and a support block (304) is fixed to the top of the screw rod (303).

3. A single crystal growth device according to claim 2, characterized in that: The support block (304) is fixedly connected to the heat preservation box (4).

4. A single crystal growth device according to claim 1, characterized in that: The lifting device (6) includes an electric push rod (601) fixed on the upper side of the shell (1), the top of the electric push rod (601) is fixedly connected to a support plate (602), a second drive motor (603) is fixed to the middle of the upper side of the support plate (602), and the output end of the second drive motor (603) is connected to a lifting rod (604).

5. A single crystal growth device according to claim 4, characterized in that: Both ends of the support plate (602) penetrate the inner side of the shell (1).

6. A single crystal growth device according to claim 1, characterized in that: A heat preservation layer is arranged inside the heat preservation box (4).

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