Bottom heater for large thermal field
By adding an adjustment chamber and an upper and lower extension ring in the bottom heater, adjusting according to the spacing between the quartz crucible and the bottom heater, the problem of heat waste is solved and more efficient heating efficiency is achieved.
Patent Information
- Application Number
- CN202421773536.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing bottom heaters lack heat insulation structure in the large heat field, resulting in heat waste. The spacing between the quartz crucible and the bottom heater of different heat fields is different, further increasing heat waste.
By adding an adjustment chamber in the bottom heater, the adjustment chamber is used to control the movement of the upper and lower extension rings, adjust the height according to the spacing between the quartz crucible and the bottom heater, and use the upper extension ring to block the spacing to achieve insulation and reduce heat waste.
It effectively reduces heat waste, improves the rate of chemicals, increases the number and area of heating blades, and improves heating efficiency.
Smart Images
Figure CN222878154U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bottom heaters, in particular to a bottom heater used for a large thermal field. Background Art
[0002] In recent years, the single crystal industry market has changed rapidly. In order to increase market competitiveness and improve production capacity, large thermal fields have become the main direction for the industry to increase production capacity. At present, all companies and thermal fields of different sizes use flat bottom heaters with similar structures. The outer side of this type of bottom heater lacks insulation structure, resulting in part of the heat being wasted. In addition, the spacing between the quartz crucible and the bottom heater in different thermal fields is different, and the larger the spacing, the more heat waste. To this end, a bottom heater for a large thermal field is proposed. Utility Model Content
[0003] The utility model aims to overcome the problem in the prior art that the distance between the quartz crucible and the bottom heater affects the heat waste, and provides a bottom heater for a large thermal field which controls the upper and lower extension rings by adjusting the bin to shield the distance between the quartz crucible and the bottom heater, thereby achieving heat preservation at the distance position and reducing heat waste.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a bottom heater for a large thermal field, comprising a bottom plate and a heater body, the heater body is arranged on the top of the bottom plate, a support is provided at the center of the top of the bottom plate, the support is located above the heater body, an insulation ring is sleeved on the outer surface of the bottom plate, adjustment bins are symmetrically provided at both ends of the insulation ring, upper extension rings and lower extension rings are symmetrically connected on both sides of the adjustment bins, the upper extension ring is located above the lower extension ring, the upper extension ring and the lower extension ring are both arc-shaped structures, and the shapes of the upper extension ring and the lower extension ring are consistent with the shapes of the insulation rings.
[0005] Preferably, the adjustment bin includes a bin body, a fixed block, a connecting rod, a screw nut, a bidirectional screw and a knob, the bin body is symmetrically arranged on the outer side of the insulation ring, the knob is rotatably arranged on the top of the bin body, the fixed block is arranged on the bottom surface of the inner wall of the bin body, one end of the bidirectional screw is rotatably arranged in the fixed block, the other end of the bidirectional screw is fixedly connected to the knob, the screw nut is symmetrically sleeved on the bidirectional screw, the connecting rod is arranged on the side of the screw nut, and the connecting rod is respectively connected to the side surfaces of the upper extension ring and the lower extension ring.
[0006] Preferably, the heater body has an axially symmetrical structure, and the heater body comprises a symmetrically arranged left heating plate and a right heating plate, one side of the left heating plate is connected with a first connecting bending bar, a first small bending bar and a first large bending bar, one side of the right heating plate is connected with a second connecting bending bar, a second small bending bar and a second large bending bar, and a center bending bar is provided between the first large bending bar and the second large bending bar.
[0007] Preferably, the first connecting bending strip and the second connecting bending strip are symmetrically arranged with respect to the vertical center line of the heater body, the first small bending strip and the second small bending strip are symmetrically arranged with respect to the vertical center line of the heater body, and the first large bending strip and the second large bending strip are symmetrically arranged with respect to the vertical center line of the heater body.
[0008] Preferably, a space is provided in the middle of the two groups of the first large bending strips and the second large bending strips, and the two sides of the space extend through between the first small bending strips and the second small bending strips to the left heating plate and the right heating plate respectively, and the space is located under the support platform.
[0009] Preferably, the first small bending bar and the second small bending bar are of W-shaped structure, and the first large bending bar and the second large bending bar are of M-shaped structure.
[0010] Preferably, connecting seats are symmetrically provided on both sides of the top of the bottom plate, and the connecting seats are symmetrically provided on both sides of the heater body.
[0011] Preferably, the left heating plate and the right heating plate are both axially symmetrical arc-shaped triangular plates, and the left heating plate and the right heating plate are bilaterally symmetrically arranged with the center line of the heater body as the axis.
[0012] The beneficial effects of the utility model are:
[0013] The utility model adds an adjusting chamber, uses the adjusting chamber to control the movement of the upper extension ring and the lower extension ring, adjusts the height according to the distance between the quartz crucible and the bottom heater, uses the upper extension ring to block the distance between the quartz crucible and the bottom heater, realizes heat preservation at the distance position, increases the heating of the bottom of the crucible, improves the material oxidizing rate, reduces heat waste, and increases the number and area of heating blades as a whole, thereby improving the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of a bottom heater used for a large thermal field according to the utility model.
[0015] Figure 2 yes Figure 1 Diagram of the internal structure of the middle regulating chamber.
[0016] Figure 3 yes Figure 1 The overall structure diagram of the heater body.
[0017] Figure 4 yes Figure 1 Partial structural diagram of the heater body.
[0018] In the figure: 1. bottom plate; 2. heater body; 3. insulation ring; 4. adjustment chamber; 5. upper extension ring; 6. lower extension ring; 7. chamber body; 8. fixing block; 9. connecting rod; 10. lead screw nut; 11. bidirectional lead screw; 12. knob; 13. left heating plate; 14. right heating plate; 15. first connecting bending strip; 16. first small bending strip; 17. first large bending strip; 18. second connecting bending strip; 19. second small bending strip; 20. second large bending strip; 21. empty space; 22. connecting seat; 23. support platform; 24. center bending strip. DETAILED DESCRIPTION
[0019] The following is combined with Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure and operation, and therefore should not be understood as a limitation on the present invention.
[0021] The present embodiment provides a bottom heater for a large thermal field, comprising a bottom plate 1 and a heater body 2, the heater body 2 is arranged on the top of the bottom plate 1, a support platform 23 is arranged at the center of the top of the bottom plate 1, the support platform 23 is located above the heater body 2, an insulation ring 3 is sleeved on the outer surface of the bottom plate 1, and adjustment chambers 4 are symmetrically arranged at both ends of the insulation ring 3, an upper extension ring 5 and a lower extension ring 6 are symmetrically connected on both sides of the adjustment chamber 4, the upper extension ring 5 is located above the lower extension ring 6, the upper extension ring 5 and the lower extension ring 6 are both arc-shaped structures, and the shapes of the upper extension ring 5 and the lower extension ring 6 are consistent with the shape of the insulation ring 3, and connecting seats 22 are symmetrically arranged on both sides of the top of the bottom plate 1, and the connecting seats 22 are symmetrically arranged on both sides of the heater body 2.
[0022] In one embodiment, specifically, the adjustment bin 4 includes a bin body 7, a fixed block 8, a connecting rod 9, a screw nut 10, a bidirectional screw 11 and a knob 12. The bin body 7 is symmetrically arranged on the outer surface of the insulation ring 3, the knob 12 is rotatably arranged on the top of the bin body 7, the fixed block 8 is arranged on the bottom surface of the inner wall of the bin body 7, one end of the bidirectional screw 11 is rotatably arranged in the fixed block 8, and the other end of the bidirectional screw 11 is fixedly connected to the knob 12, the screw nut 10 is symmetrically sleeved on the bidirectional screw 11, the connecting rod 9 is arranged on the side of the screw nut 10, and the connecting rod 9 is respectively connected to the side surfaces of the upper extension ring 5 and the lower extension ring 6.
[0023] In one embodiment, specifically, the heater body 2 has an axially symmetrical structure, and the heater body 2 includes a symmetrically arranged left heating plate 13 and a right heating plate 14, one side of the left heating plate 13 is connected once with a first connecting bending strip 15, a first small bending strip 16 and a first large bending strip 17, one side of the right heating plate 14 is connected once with a second connecting bending strip 18, a second small bending strip 19 and a second large bending strip 20, a center bending strip 24 is provided between the first large bending strip 17 and the second large bending strip 20, the first connecting bending strip 15 and the second connecting bending strip 18 are symmetrically arranged with respect to the vertical center line of the heater body 2, the first small bending strip 16 and the second small bending strip 19 are symmetrically arranged with respect to the vertical center line of the heater body 2 The first large bending strip 17 and the second large bending strip 20 are symmetrically arranged with respect to the vertical center line of the heater body 2, and a space 21 is provided in the middle of the two groups of the first large bending strip 17 and the second large bending strip 20, and the two sides of the space 21 respectively pass through the first small bending strip 16 and the second small bending strip 19 to extend to the left heating plate 13 and the right heating plate 14, and the space 21 is located under the support 23, and the left heating plate 13 and the right heating plate 14 are both axially symmetrical arc-shaped triangular plates, and the left heating plate 13 and the right heating plate 14 are symmetrically arranged with respect to the center line of the bottom heater body 2 as the axis, the first small bending strip 16 and the second small bending strip 19 are W-shaped structures, and the first large bending strip 17 and the second large bending strip 20 are M-shaped structures.
[0024] The working process of the bottom heater for a large heat field in this embodiment is as follows: turn the knob 12, the knob 12 drives the bidirectional lead screw 11 to rotate, the bidirectional lead screw 11 drives the lead screw nut 10 to move, the lead screw nut 10 drives the upper extension ring 5 and the lower extension ring 6 to move through the connecting rod 9, and the upper extension ring 5 is used to block the distance between the quartz crucible and the heater body 2, and then it is used normally.
[0025] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.
Claims
1. A bottom heater for a large thermal field, characterized in that: The heater body (2) comprises a bottom plate (1) and a heater body (2), wherein the heater body (2) is arranged on the top of the bottom plate (1), a support platform (23) is arranged at the center of the top of the bottom plate (1), and the support platform (23) is located above the heater body (2). A heat preservation ring (3) is sleeved on the outer surface of the bottom plate (1), and adjustment chambers (4) are symmetrically arranged at both ends of the heat preservation ring (3). An upper extension ring (5) and a lower extension ring (6) are symmetrically connected on both sides of the adjustment chamber (4), and the upper extension ring (5) and the lower extension ring (6) are both arc-shaped structures, and the shapes of the upper extension ring (5) and the lower extension ring (6) match the shapes of the heat preservation ring (3); The regulating chamber (4) comprises a chamber body (7), a fixing block (8), a connecting rod (9), a screw nut (10), a bidirectional screw (11) and a knob (12); the chamber body (7) is symmetrically arranged on the outer side of the heat preservation ring (3); the knob (12) is rotatably arranged on the top of the chamber body (7); the fixing block (8) is arranged on the bottom surface of the inner wall of the chamber body (7); one end of the bidirectional screw (11) is rotatably arranged in the fixing block (8); the other end of the bidirectional screw (11) is fixedly connected to the knob (12); the screw nut (10) is symmetrically sleeved on the bidirectional screw (11); the connecting rod (9) is arranged on the side of the screw nut (10); and the connecting rod (9) is respectively connected to the side of the upper extension ring (5) and the side of the lower extension ring (6).
2. The bottom heater for a large thermal field according to claim 1, characterized in that: The heater body (2) has an axisymmetric structure, and comprises a left heating plate (13) and a right heating plate (14) which are symmetrically arranged. One side of the left heating plate (13) is connected with a first connecting bending strip (15), a first small bending strip (16) and a first large bending strip (17). One side of the right heating plate (14) is connected with a second connecting bending strip (18), a second small bending strip (19) and a second large bending strip (20). A central bending strip (24) is provided between the first large bending strip (17) and the second large bending strip (20).
3. The bottom heater for a large thermal field according to claim 2, characterized in that: The first connecting bending strip (15) and the second connecting bending strip (18) are symmetrically arranged about the vertical center line of the heater body (2), the first small bending strip (16) and the second small bending strip (19) are symmetrically arranged about the vertical center line of the heater body (2), and the first large bending strip (17) and the second large bending strip (20) are symmetrically arranged about the vertical center line of the heater body (2).
4. The bottom heater for a large thermal field according to claim 2, characterized in that: A space (21) is provided in the middle of the two groups of the first large bending strips (17) and the second large bending strips (20), and two sides of the space (21) extend through between the first small bending strips (16) and the first large bending strips (17) to the left heating plate (13) and the right heating plate (14), respectively, and the space (21) is located under the support platform (23).
5. The bottom heater for a large thermal field according to claim 2, characterized in that: The first small bending strip (16) and the first large bending strip (17) are of a W-shaped structure, and the first large bending strip (17) and the second large bending strip (20) are of an M-shaped structure.
6. The bottom heater for a large thermal field according to claim 1, characterized in that: Connecting seats (22) are symmetrically arranged on both sides of the top of the bottom plate (1), and the connecting seats (22) are symmetrically arranged on both sides of the heater body (2).
7. The bottom heater for a large thermal field according to claim 2, characterized in that: The left heating plate (13) and the right heating plate (14) are both axially symmetrical arc-shaped triangular plates, and the left heating plate (13) and the right heating plate (14) are arranged symmetrically with the center line of the heater body (2) as the axis.