Crystallization device
By setting multiple chambers and temperature regulating components in the furnace body of the crystallization device, and using heating parts and condensers to form a gradient temperature range, the problem of poor temperature field control reliability in the prior art is solved, and more stable temperature field control and improved crystallization effect are achieved.
Patent Information
- Application Number
- CN202421006973.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In the prior art, the reliability of temperature field changes in the furnace body is controlled by thermal insulation bricks, resulting in poor stability of temperature field control.
A crystallization device is designed to form a gradient-changing temperature interval by setting multiple chambers and temperature regulating components in the furnace body, and a combination of heating parts and condensers is used to form a gradient-changing temperature range to achieve reliable control of the temperature field.
Through this device, the control reliability and stability of the temperature field are greatly improved, avoiding the problem of the change in the performance of the insulation brick with the use time, and significantly improving the crystallization effect.
Smart Images
Figure CN222594060U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crystal preparation, in particular to a crystallization device. Background Art
[0002] The crucible descent method, also known as the Bridgman crystal growth method, is a commonly used crystal preparation method. The material used for crystallization is loaded into the crucible, which slowly descends and passes through a high-temperature furnace. The temperature inside the furnace is higher than the melting point of the crystal, so that the crystal is melted during the crucible passing through the furnace. The crucible continues to descend, and the temperature of the molten crystal at the bottom first drops below the melting point, and then begins to crystallize. The crystal continues to grow as the crucible descends, realizing the crystallization operation.
[0003] It can be seen that the temperature field control formed by the temperature distribution in the furnace body is an important factor affecting the crystallization effect. The existing furnace body controls the internal temperature field by changing the material and stacking method of the insulation bricks, that is, insulation bricks with good insulation performance are required at high temperature positions, and insulation bricks with good thermal conductivity are required at low temperature positions. However, as the equipment is used for a longer time, the insulation effect of the insulation bricks will change, and then the furnace body needs to be redesigned, and the reliability of the temperature field control is poor. Utility Model Content
[0004] The technical problems to be solved by the utility model are:
[0005] The reliability of controlling temperature field changes through insulation bricks is poor.
[0006] In order to solve the above technical problems, the utility model provides a crystallization device having a first direction, a second direction and a third direction intersecting in pairs, and the crystallization device comprises:
[0007] A furnace body, wherein a chamber is provided in the furnace body, the chamber is extended along a first direction, an opening is provided at one end of the chamber, and the opening is located at one side of the furnace body in the first direction;
[0008] A temperature regulating assembly, wherein at least two temperature regulating assemblies are provided and arranged at intervals along a first direction; the temperature regulating assembly comprises a heating element and a condensing element; the heating element and the condensing element are both arranged in the furnace body along the second direction, the heating element is used to increase the temperature in the chamber, and the condensing element is used to reduce the temperature in the chamber; and
[0009] A crystallization assembly, the crystallization assembly comprising a crucible, a mounting frame and a lifting member; the crucible is inserted into the chamber through the opening, the crucible is used to accommodate a crystallized object, the mounting frame is connected to the crucible, the lifting member is connected to the mounting frame, and the lifting member is used to drive the mounting frame and the crucible to move together in a first direction;
[0010] The temperature adjustment components are arranged at intervals along the first direction so that the temperature in the chamber forms a gradient interval.
[0011] In one embodiment, there are three temperature control components, and the three temperature control components divide the chamber into a high temperature zone, a medium temperature zone and a low temperature zone. The high temperature zone is located at an end of the chamber away from the opening, the low temperature zone is located at an end of the chamber close to the opening, and the medium temperature zone is located between the high temperature zone and the low temperature zone.
[0012] In one of the embodiments, in the first direction, the condensing element of the temperature regulating assembly is located on a side of each temperature zone close to the opening, and the heating element of the temperature regulating assembly is disposed in the middle of each temperature zone.
[0013] In one embodiment, in the first direction, the height of the high temperature zone is H1, the height of the medium temperature zone is H2, and the height of the low temperature zone is H3;
[0014] Among them, H1>H2>H3.
[0015] In one embodiment, the heating element is cylindrical and is symmetrically arranged on both sides of the chamber along the third direction.
[0016] In one embodiment, the condensing element is in the shape of a hollow circular tube, and the condensing element is symmetrically arranged on both sides of the chamber along the third direction.
[0017] In one embodiment, the number of the chambers is at least two, the chambers are arranged on the furnace body at intervals along the second direction, and the opening direction of each chamber faces the same side.
[0018] In one embodiment, the number of the crucibles is the same as the number of the chambers, each crucible is inserted into each chamber respectively, and each crucible is fixed on the mounting frame.
[0019] In one of the embodiments, the crystallization device further includes a temperature measuring component; the temperature measuring component is arranged on the furnace body along a third direction, and one end of the temperature measuring component is inserted into the chamber.
[0020] In one of the embodiments, the number of the temperature measuring components is the same as the number of the temperature regulating components, and in the first direction, each of the temperature measuring components corresponds to a setting position of each of the heating components.
[0021] Compared with the prior art, the above crystallization device has the following beneficial effects:
[0022] The temperature in the chamber is controlled by arranging a combination of a heating element and a condensing element. The condensing element forms a temperature interval in the chamber, and the temperature in the interval is heated by the heating element, so that a temperature interval with a gradient change can be formed in the chamber. The reliability of the temperature field control is better, and the performance of the heating element and the condensing element will not change with the increase of usage time, so the stability of the temperature field control is better.
[0023] By setting up the condensation element, the distribution of the temperature field can show a step-like mutation. If the temperature field is controlled only by controlling the power or number of the heating elements, the temperature field will change smoothly, and the temperature gradient range is more conducive to crystallization, thereby improving the crystallization effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic structural diagram of a crystallization device according to one embodiment of the present invention;
[0025] Figure 2 for Figure 1 Schematic side view of the crystallization apparatus.
[0026] The meanings of the numbers in the accompanying drawings are:
[0027] 100. Crystallization device;
[0028] 10. furnace body; 15. chamber; 16. opening;
[0029] 20. Temperature control component; 21. Heating element; 22. Condensation element;
[0030] 30. Crystallization assembly; 31. Crucible; 32. Mounting frame; 33. Lifting member;
[0031] 40. Temperature measuring parts. DETAILED DESCRIPTION
[0032] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0038] It should be noted that according to Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the X-axis direction, the Y-axis direction and the Z-axis direction intersect each other. For the convenience of explanation, the first direction is defined as the X-axis direction, the second direction is defined as the Y-axis direction, and the third direction is defined as the Z-axis direction. In this embodiment, the X-axis direction and the Y-axis direction are coplanar and relatively perpendicular to each other, and the Z-axis direction is relatively perpendicular to the common surface of the X-axis and the Y-axis. The first direction, the second direction, and the third direction are relatively perpendicular to each other. Further explanation, the term "parallel" in this application includes not only the situation of absolute parallelism, but also the situation of roughly parallelism conventionally recognized in engineering, such as "parallel" refers to the state where the angle formed by a straight line and a straight line, a straight line and a surface, or a surface and a surface is -1° to 1°; at the same time, "vertical" also includes not only the situation of absolute verticality, but also the situation of roughly verticality conventionally recognized in engineering, such as "vertical" refers to the state where the angle formed by a straight line and a straight line, a straight line and a surface, or a surface and a surface is 89° to 91°. Equal distances or equal angles include not only absolute equality but also approximate equality as commonly recognized in engineering, which means that there may be certain errors, such as a tolerance range of -1% to 1%.
[0039] See also Figure 1 and Figure 2, is a crystallization device 100 of an embodiment of the utility model, comprising a furnace body 10, a temperature adjustment component 20 and a crystallization component 30. A chamber 15 is provided in the furnace body 10, and the chamber 15 is extended along the first direction. An opening 16 is provided at one end of the chamber 15, and the opening 16 is located on one side of the furnace body 10 in the first direction. The chamber 15 is used to form a temperature field change space required for crystallization. At least two temperature adjustment components 20 are provided, and the temperature adjustment components 20 are arranged at intervals along the first direction; the temperature adjustment component 20 includes a heating element 21 and a condensing element 22; the heating element 21 and the condensing element 22 are both arranged in the furnace body 10 along the second direction, the heating element 21 is used to increase the temperature in the chamber 15, and the condensing element 22 is used to reduce the temperature in the chamber 15. The crystallization assembly 30 includes a crucible 31, a mounting frame 32 and a lifting member 33; the crucible 31 is inserted into the chamber 15 through the opening 16, the crucible 31 is used to accommodate the crystallized material, the mounting frame 32 is connected to the crucible 31, and the lifting member 33 is connected to the mounting frame 32, and the lifting member 33 is used to drive the mounting frame 32 and the crucible 31 to move together in the first direction. Among them, the temperature adjustment assembly 20 is arranged at intervals along the first direction so that the temperature in the chamber 15 forms a gradient interval, and the condensing member 22 of the temperature adjustment assembly 20 forms a temperature field with a step-by-step temperature change in the chamber 15, thereby improving the crystallization effect.
[0040] Furthermore, the furnace body 10 is in a rectangular structure, the furnace body 10 is connected and fixed to the outside, and the furnace body 10 is made of insulation bricks. The chamber 15 is in a circular groove shape, and the chamber 15 is recessed from one side of the furnace body 10 in the first direction toward the inside of the furnace body 10. The opening 16 is correspondingly arranged at the bottom of the furnace body 10. In this embodiment, the number of the chambers 15 is at least two, and the chambers 15 are arranged on the furnace body 10 at intervals along the second direction, and the openings 16 of each chamber 15 face the same side to ensure that multiple groups of crystallization operations are performed simultaneously to improve the crystallization efficiency.
[0041] Furthermore, the number of the temperature control components 20 is three, and the three temperature control components 20 divide the chamber 15 into a high temperature zone, a medium temperature zone and a low temperature zone. The high temperature zone is located at one end of the chamber 15 away from the opening 16, the low temperature zone is located at one end of the chamber 15 close to the opening 16, and the medium temperature zone is located between the high temperature zone and the low temperature zone. The temperature of the high temperature zone is higher than the temperature of the medium temperature zone, and the temperature of the medium temperature zone is higher than the temperature of the low temperature zone. The three temperature zones are more conducive to the formation of crystals and the crystallization effect. In this embodiment, the condensation element 22 of the temperature control component 20 is located on the side of each temperature zone close to the opening 16, and the heating element 21 of the temperature control component 20 is arranged in the middle of each temperature zone. By setting the condensation element 22 on the side of each temperature zone close to the opening 16, the temperature zones are separated by the condensation element 22. The condensation element 22 reduces the temperature influence between the temperature zones by absorbing heat, thereby forming a step-like mutation of the temperature between the temperature zones, which is conducive to the crystallization effect. By arranging the heating element 21 in the middle of the temperature zone, the temperature distribution in the temperature zone is ensured to be more uniform, thereby further improving the crystallization effect.
[0042] Furthermore, the height of the high temperature zone is H1, the height of the medium temperature zone is H2, and the temperature of the low temperature zone is H3. Among them, H1>H2>H3. By changing the height, it is ensured that the path of the crystallized material in the high temperature zone is longer, which is conducive to the full melting of the crystallized material. The medium temperature zone makes the crystallized material at a temperature close to the crystallization precipitation. The low temperature zone has the smallest height, which ensures faster cooling crystallization, thereby ensuring the crystallization effect and crystallization quality.
[0043] Furthermore, the heating element 21 is cylindrical, and the heating element 21 is symmetrically arranged on both sides of the chamber 15 along the third direction; the condensing element 22 is hollow cylindrical, and the condensing element 22 is symmetrically arranged on both sides of the chamber 15 along the third direction. Through the symmetrical arrangement of the heating element 21 and the condensing element 22, the temperature distribution in the temperature zone is guaranteed to be uniform, thereby improving the crystallization effect. In the present embodiment, the heating element 21 is a silicon-molybdenum rod or a silicon-carbon rod; the cooling liquid flows inside the condensing element 22. It can be understood that the specific components of the heating element 21 and the cooling liquid are not restricted here, ensuring that the heating element 21 can heat the chamber 15, and the cooling element can cool the chamber 15 and absorb heat.
[0044] Furthermore, the crucible 31 is a hollow cylindrical structure, and the interior of the crucible 31 is used to accommodate the crystallized material, thereby providing a growth space for the crystallization. The mounting frame 32 is a rectangular straight plate structure, and the mounting frame 32 is extended along the second direction. The mounting frame 32 is used to carry the crucible 31. The lifting member 33 is arranged on the side of the mounting frame 32 away from the crucible 31, and the lifting member 33 is used to drive the mounting frame 32 and the crucible 31 to move along the first direction, thereby ensuring the crystallization operation. In this embodiment, the number of the crucibles 31 is the same as the number of the chambers 15, and each crucible 31 is respectively inserted into each chamber 15, and each crucible 31 is fixed on the mounting frame 32 to ensure that each crucible 31 is driven to move synchronously, so as to ensure that the crystallization effect of each crucible 31 is the same. The lifting member 33 is a cylinder, a hydraulic cylinder, a screw mechanism or a gear rack mechanism. It can be understood that the specific structure of the lifting member 33 is not limited here, and it is sufficient to ensure that the lifting member 33 can drive the mounting frame 32 and the crucible 31 to move up and down along the first direction.
[0045] Furthermore, the crystallization device 100 also includes a temperature measuring component 40. The temperature measuring component 40 is arranged on the furnace body 10 along the third direction, and one end of the temperature measuring component 40 is inserted into the chamber 15. The temperature measuring component 40 is used to detect the temperature in the chamber 15, thereby realizing automatic control of the processing power of the heating component 21 and the flow rate of the coolant inside the condensing component 22, so as to ensure high-quality automatic crystallization operation. In this embodiment, the temperature measuring component 40 is a temperature sensor. The number of the temperature measuring components 40 is the same as the number of the temperature regulating components 20. In the first direction, each temperature measuring component 40 corresponds to the setting position of each heating component 21; in the second direction, the temperature measuring component 40 is arranged in the chamber 15 arranged at the middle position. By setting the temperature measuring element 40 corresponding to the heating element 21, it is ensured that the temperature measuring element 40 is installed at the center of each temperature zone, thereby reducing the influence of heat consumption in the temperature propagation process, making the data measured by the temperature measuring element 40 more balanced, and there is no need to set the temperature measuring element 40 in each temperature zone of each chamber 15, so as to balance the production cost and crystallization effect of the device.
[0046] In summary, the embodiment of the present invention provides a crystallization device 100, which has the following beneficial effects:
[0047] The temperature in the chamber 15 is controlled by arranging a combination of a heating element 21 and a condensing element 22. The condensing element 22 forms a temperature interval in the chamber 15, and the temperature in the interval is heated by the heating element 21, so that a temperature interval with a gradient change can be formed in the chamber 15. The reliability of the temperature field control is better, and the performance of the heating element 21 and the condensing element 22 will not change with the increase of the use time, so the stability of the temperature field control is better.
[0048] By setting the condensation element 22, the distribution of the temperature field can have a step-like mutation. If the temperature field is controlled only by controlling the power or number of the heating element 21, the temperature field changes smoothly, and the temperature gradient range is more conducive to crystal formation, thereby improving the crystallization effect.
[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A crystallization device having a first direction, a second direction and a third direction intersecting each other, characterized in that: The crystallization device comprises: A furnace body, wherein a chamber is provided in the furnace body, the chamber is extended along a first direction, an opening is provided at one end of the chamber, and the opening is located at one side of the furnace body in the first direction; A temperature regulating assembly, wherein at least two temperature regulating assemblies are provided and arranged at intervals along a first direction; the temperature regulating assembly comprises a heating element and a condensing element; the heating element and the condensing element are both arranged in the furnace body along the second direction, the heating element is used to increase the temperature in the chamber, and the condensing element is used to reduce the temperature in the chamber; and A crystallization assembly, the crystallization assembly comprising a crucible, a mounting frame and a lifting member; the crucible is inserted into the chamber through the opening, the crucible is used to accommodate a crystallized object, the mounting frame is connected to the crucible, the lifting member is connected to the mounting frame, and the lifting member is used to drive the mounting frame and the crucible to move together in a first direction; The temperature adjustment components are arranged at intervals along the first direction so that the temperature in the chamber forms a gradient interval.
2. The crystallization device according to claim 1, characterized in that The number of the temperature control components is three, and the three temperature control components divide the chamber into a high temperature zone, a medium temperature zone and a low temperature zone. The high temperature zone is located at an end of the chamber away from the opening, the low temperature zone is located at an end of the chamber close to the opening, and the medium temperature zone is located between the high temperature zone and the low temperature zone.
3. The crystallization device according to claim 2, characterized in that In the first direction, the condensing element of the temperature regulating component is located at a side of each temperature zone close to the opening, and the heating element of the temperature regulating component is arranged at a middle position of each temperature zone.
4. The crystallization device according to claim 2, characterized in that: In the first direction, the height of the high temperature zone is H1, the height of the medium temperature zone is H2, and the height of the low temperature zone is H3; Among them, H1>H2>H3.
5. The crystallization device according to claim 1, characterized in that: The heating element is cylindrical and is symmetrically arranged on both sides of the chamber along the third direction.
6. The crystallization device according to claim 5, characterized in that: The condensing element is in the shape of a hollow circular tube and is symmetrically arranged on both sides of the chamber along the third direction.
7. The crystallization device according to claim 1, characterized in that The number of the chambers is at least two, and the chambers are arranged on the furnace body at intervals along the second direction, and the opening directions of the chambers face the same side.
8. The crystallization device according to claim 7, characterized in that: The number of the crucibles is the same as the number of the chambers, and each crucible is inserted into each chamber respectively, and each crucible is fixed on the mounting frame.
9. The crystallization device according to claim 1, characterized in that: The crystallization device further comprises a temperature measuring component; the temperature measuring component is arranged on the furnace body along the third direction, and one end of the temperature measuring component is inserted into the chamber.
10. The crystallization device according to claim 9, characterized in that: The number of the temperature measuring components is the same as the number of the temperature regulating components. In the first direction, each of the temperature measuring components corresponds to a setting position of each of the heating components.