Heater for crystal growth

Abstract

The utility model discloses a heater for crystal growth, which comprises a crucible and a controller fixed on the outer side wall of the crucible, the upper end of the crucible is provided with an arc-shaped groove communicated with the inside of the crucible, an arc-shaped plate is inserted on the inner side wall of the arc-shaped groove in a sliding manner, the inner side part of the arc-shaped plate extends into the crucible, and the inner side part of the arc-shaped plate extends into the crucible. A positioning block is fixedly connected to the lower end of the arc-shaped plate, a positioning groove corresponding to the positioning block is formed in the inner bottom of the arc-shaped groove, the lower end of the positioning block slidably extends into the positioning groove, a plurality of heating pipes are sequentially slidably placed on the inner side wall of the crucible from top to bottom, and electric heating wires are fixedly embedded in the heating pipes. Part of the outer side wall of the heating pipe abuts against the inner side wall of the arc-shaped plate. Through the arrangement of the arc-shaped plates, the bolts and other mechanisms, a user can conveniently and quickly take out the heating mechanism, a damaged part can be conveniently and independently taken down, and maintenance and overhaul operation is facilitated.

Description

Technical Field

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

[0002] Crucibles are used to load and heat the raw materials for crystal growth. In the process of crystal growth, the role of crucibles is very critical because it not only provides the necessary raw materials, but also creates a suitable environment for crystal growth by controlling factors such as temperature and atmosphere.

[0003] At present, the heating mechanism in the crucible is fixed inside it. Once damaged, it is not only inconvenient to remove it for maintenance and repair, but the convenience needs to be improved. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above background technology and provides a heater for crystal growth.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heater for crystal growth, comprising a crucible and a controller fixed on the outer wall thereof, wherein the upper end of the crucible is provided with an arc-shaped groove communicating with the interior thereof, an arc-shaped plate is slidably inserted on the inner wall of the arc-shaped groove, the inner part of the arc-shaped plate extends into the crucible, a positioning block is fixedly connected to the lower end of the arc-shaped plate, a positioning groove corresponding to the positioning block is provided at the inner bottom of the arc-shaped groove, the lower end of the positioning block slides and extends into the positioning groove, a plurality of heating tubes are slidably placed on the inner wall of the crucible from top to bottom, an electric heating wire is fixedly embedded in the interior of the heating tube, a part of the outer wall of the heating tube abuts against the inner wall of the arc-shaped plate, and a support is fixedly connected to the side of the heating tube close to the arc-shaped plate Rod and temperature sensor, the inner wall of the arc plate is provided with a receiving groove corresponding to the temperature sensor, part of the temperature sensor slides and extends into the receiving groove, the inner wall of the arc plate is provided with a slot corresponding to the support rod, one end of the support rod slides and extends into the slot, the heating tube is fixedly connected with a bolt on the side close to the arc plate, the inner wall of the arc plate is provided with a through hole corresponding to the bolt, the outer wall of the arc plate is provided with a storage groove communicating with the through hole, a nut corresponding to the bolt is provided in the storage groove, one end of the bolt away from the heating tube passes through the through hole and the nut in sequence, the bolt and the through hole are slidingly linked, and the bolt and the nut are threadedly connected.

[0007] Preferably, an anti-loosening washer is sleeved on the bolt, and the anti-loosening washer is located between the nut and the inner side wall of the storage groove.

[0008] Preferably, grooves are provided on both left and right sides of the arc-shaped plate, and balls are rollingly connected to the inner side walls of the grooves, and parts of the balls pass through the grooves.

[0009] Preferably, a handle is fixedly connected to the upper end of the arc-shaped plate.

[0010] Preferably, there are multiple positioning blocks.

[0011] Preferably, there are multiple supporting rods.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The arc groove and the arc plate of the utility model can facilitate the user to quickly take out the heating mechanism from the crucible, which is conducive to the maintenance and repair of the entire heating mechanism;

[0014] 2. Multiple modular heating mechanisms are formed by setting up multiple heating tubes, heating wires, bolts, anti-loosening washers and nuts, which can facilitate users to disassemble, maintain, repair and replace damaged heating mechanisms separately, thereby improving practicality;

[0015] 3. The setting of the controller and the temperature sensor in the utility model can facilitate the user to control the heating wire for constant temperature heating; the setting of the arc plate, bolts and other mechanisms in the utility model not only facilitates the user to quickly remove the heating mechanism, but also facilitates the removal of the damaged parts separately, which is conducive to maintenance and repair operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a heater for crystal growth proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the top-sectional structure of a heater for crystal growth proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of position A of a heater for crystal growth proposed by the utility model.

[0019] In the figure: 1-crucible, 2-arc plate, 3-heating tube, 4-positioning block, 5-handle, 6-heating wire, 7-support rod, 8-temperature sensor, 9-bolt, 10-nut, 11-anti-loosening washer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A heater for crystal growth, comprising a crucible 1 and a controller fixed on the outer wall thereof, the model of the controller is 80S51, the input end of the controller is electrically connected to the output end of the temperature sensor 8, the output end of the controller is electrically connected to the input end of the heating wire 6, the upper end of the crucible 1 is provided with an arc groove communicating with the interior thereof, an arc plate 2 is slidably inserted on the inner wall of the arc groove, used to cooperate with bolts 9 and support rods 7 to support a heating tube 3, and the inner part of the arc plate 2 extends into the crucible 1;

[0022] In this embodiment, grooves are provided on both sides of the arc plate 2, and balls are rollingly connected on the inner side walls of the grooves to reduce the force when the arc plate 2 moves. Part of the ball passes through the grooves, and a positioning block 4 is fixedly connected to the lower end of the arc plate 2 to prevent the arc plate 2 from tilting. A positioning groove corresponding to the positioning block 4 is provided at the inner bottom of the arc groove, and the lower end of the positioning block 4 slides and extends into the positioning groove. There are multiple positioning blocks 4 to improve the positioning and anti-skew effects. A handle 5 is fixedly connected to the upper end of the arc plate 2 to facilitate the user to lift and pull out the arc plate 2;

[0023] In this embodiment, a plurality of heating tubes 3 are slidably placed on the inner wall of the crucible 1 from top to bottom in sequence, for heating the inside of the crucible 1. The heating tube 3 is arranged in an annular manner, and an electric heating wire 6 is fixedly embedded inside the heating tube 3 for heating the heating tube 3. Part of the outer wall of the heating tube 3 abuts against the inner wall of the arc-shaped plate 2, and a support rod 7 and a temperature sensor 8 are fixedly connected to the side of the heating tube 3 close to the arc-shaped plate 2. The support rod 7 is used to support the heating tube 3. The model of the temperature sensor 8 is PT100, which is used to monitor the current temperature value. There are multiple support rods 7 for improving the supporting effect. A receiving groove corresponding to the temperature sensor 8 is provided on the inner wall of the arc-shaped plate 2, and a part of the temperature sensor 8 slides and extends into the receiving groove. A slot corresponding to the support rod 7 is provided on the inner wall of the arc-shaped plate 2, and one end of the support rod 7 slides and extends into the slot;

[0024] In this embodiment, a bolt 9 is fixedly connected to one side of the heating tube 2 close to the arc plate 2, which is used to cooperate with the nut 10 to fix the heating tube 3. A through hole corresponding to the bolt 9 is provided on the inner wall of the arc plate 2, and a storage groove connected to the through hole is provided on the outer wall of the arc plate 2. A nut 10 corresponding to the bolt 9 is provided in the storage groove for fixing the bolt 9. One end of the bolt 9 away from the heating tube 2 passes through the through hole and the nut 10 in sequence. There is a sliding connection between the bolt 9 and the through hole, and a threaded connection between the bolt 9 and the nut 10. An anti-loosening washer 11 is sleeved on the bolt 9 for loosening the nut 10 to a certain extent. The anti-loosening washer 11 is located between the nut 10 and the inner wall of the storage groove.

[0025] In this embodiment, the heating wire 6 is first started to heat the heating tube 3 and the crucible 1, and the temperature control function is performed through the temperature sensor 8 and the controller. The start and stop of the heating wire 6 is controlled according to the temperature value. During maintenance and inspection, the arc plate 2 can be pulled upward to pull all the heating mechanisms (heating tube 3 and heating wire 6) outward for easy maintenance and inspection. At the same time, the nut 10 is manually unscrewed, and then the heating tube 3 is pulled away from the arc plate 2. The damaged heating tube 3 can be maintained and inspected without removing other heating tubes 3, and the convenience is improved. After maintenance and inspection, the heating tube 3 is put back in place. At this time, the support rod 7 will be inserted into the slot to support the heating tube 3. At the same time, the bolt 9 will pass through the through opening and extend into the storage slot. The nut 10 is tightened on the bolt 9 to fix the heating tube 3 and prevent it from loosening.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heater for crystal growth, comprising a crucible (1) and a controller fixed to the outer wall thereof, characterized in that: The upper end of the crucible (1) is provided with an arc-shaped groove communicating with the interior thereof, an arc-shaped plate (2) is slidably inserted on the inner wall of the arc-shaped groove, the inner part of the arc-shaped plate (2) extends into the crucible (1), the lower end of the arc-shaped plate (2) is fixedly connected with a positioning block (4), the inner bottom of the arc-shaped groove is provided with a positioning groove corresponding to the positioning block (4), the lower end of the positioning block (4) slides and extends into the positioning groove, a plurality of heating tubes (3) are slidably placed on the inner wall of the crucible (1) from top to bottom, an electric heating wire (6) is fixedly embedded inside the heating tube (3), part of the outer wall of the heating tube (3) is against the inner wall of the arc-shaped plate (2), a support rod (7) and a temperature sensor (8) are fixedly connected to the side of the heating tube (3) close to the arc-shaped plate (2), and the inner side of the arc-shaped plate (2) is provided with a positioning groove corresponding to the positioning block (4). A receiving groove corresponding to the temperature sensor (8) is provided on the wall, and a part of the temperature sensor (8) slides and extends into the receiving groove. A slot corresponding to the support rod (7) is provided on the inner wall of the arc plate (2), and one end of the support rod (7) slides and extends into the slot. A bolt (9) is fixedly connected to the side of the heating tube (3) close to the arc plate (2). A through hole corresponding to the bolt (9) is provided on the inner wall of the arc plate (2). A storage groove communicating with the through hole is provided on the outer wall of the arc plate (2). A nut (10) corresponding to the bolt (9) is provided in the storage groove. One end of the bolt (9) away from the heating tube (3) passes through the through hole and the nut (10) in sequence. The bolt (9) and the through hole are slidably connected, and the bolt (9) and the nut (10) are threadedly connected.

2. A crystal growth heater according to claim 1, characterized in that: The bolt (9) is sleeved with an anti-loosening washer (11), and the anti-loosening washer (11) is located between the nut (10) and the inner wall of the storage groove.

3. A crystal growth heater according to claim 1, characterized in that: The left and right sides of the arc-shaped plate (2) are both provided with grooves, and a ball is rollingly connected to the inner side wall of the groove, and part of the ball passes through the groove.

4. A crystal growth heater according to claim 1, characterized in that: A handle (5) is fixedly connected to the upper end of the arc-shaped plate (2).

5. A crystal growth heater according to claim 1, characterized in that: The number of the positioning blocks (4) is multiple.

6. A crystal growth heater according to claim 1, characterized in that: The number of the support rods (7) is multiple.

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