CN203569232U - Lower heater fixing structure of quasi-monocrystalline silicon ingot furnace - Google Patents
Lower heater fixing structure of quasi-monocrystalline silicon ingot furnace Download PDFInfo
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- CN203569232U CN203569232U CN201320469893.5U CN201320469893U CN203569232U CN 203569232 U CN203569232 U CN 203569232U CN 201320469893 U CN201320469893 U CN 201320469893U CN 203569232 U CN203569232 U CN 203569232U
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- well heater
- lower well
- lower heater
- double threaded
- nut
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Abstract
The utility model relates to a lower heater fixing structure of a quasi-monocrystalline silicon ingot furnace. The lower heater fixing structure is characterized by comprising a graphite platform, wherein a horizontal lower heater is arranged at the lower part of the graphite platform, the lower heater is suspended on the graphite platform via at least two double-thread screws, the position of the lower heater, which is corresponding to and matched with every double-thread screw, is provided with a through hole, every double-thread screw passes through the corresponding through hole, the lower heater is arranged on a nut by the lower ends of the double-thread screws via connecting nuts, and an insulation device is arranged among the screws, the nuts and the lower heater. The lower heater is fixed under the graphite platform of a crucible via C/C (carbon/carbon) screws and a boron nitride insulation part, and the service life of a graphite part of the lower heater is effectively extended.
Description
Technical field
The utility model relates to a kind of lower well heater fixed sturcture of accurate single-crystal ingot casting furnace.
Background technology
At present, sun power mainly makes by vertical pulling method with silicon single crystal, also have now by casting manufacture order crystal silicon, its method is to add seed crystal in the bottom of crucible, on seed crystal, load again silicon material, in the process of silicon raw material fusing, control the fusing of seed crystal, make a part for seed crystal or seed crystal remain solid-state, in cooling process, quasi-monocrystalline silicon is along the crystal orientation crystallization of seed crystal, the defect concentration of the crystal that this method is produced is lower, the fusing mode of this method of the while also coating of the inside to crucible is had higher requirement, indirectly increased cost, therefore in order to address these problems the device that need to prepare casting monocrystalline silicon to directional solidification method, carry out structural improvement, existing by polycrystalline silicon ingot or purifying furnace transformation being applicable to the Foundry Production of silicon single crystal.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of make well heater can be safely, the lower well heater fixed sturcture of the accurate single-crystal ingot casting furnace of insulation.
For solving the problems of the technologies described above, the utility model provides a kind of lower well heater fixed sturcture of accurate single-crystal ingot casting furnace, it is characterized in that: comprise Graphite platform, Graphite platform bottom is provided with the lower well heater of a parallel placement, described lower well heater is hung on Graphite platform by least two double threaded screws, the lower heater locations of each double threaded screw corresponding matching is provided with through hole, described each double threaded screw is through corresponding through hole, double threaded screw lower end is arranged on lower well heater on nut by joint nut, between described bolt and nut and lower well heater, be provided with seal.
By C/C screw rod and boron nitride insulating part, lower well heater is fixed on below crucible Graphite platform to the work-ing life of effectively improving lower well heater graphite piece.
Below the lower well heater fixed sturcture of a kind of accurate single-crystal ingot casting furnace described in the utility model is further optimized:
Described seal is that described double threaded screw is provided with boron nitride insulated ring with coordinating in through hole of lower well heater, and described lower well heater and nut combination section are provided with boron nitride pad.
Described seal is a kind of stepped boron nitride insulation covering with location shoulder block, respectively in the cooperation through hole of lower well heater and lower well heater and nut combination section form and insulate.
Described double threaded screw is threaded with Graphite platform, can double threaded screw be installed by threaded hole is directly directly set on Graphite platform, makes lower well heater easy for installation.
Described double threaded screw is preferably selected the double threaded screw into CC.
Described nut is preferably selected the nut into CC.
Described CC is that carbon carbon material is made into.
Accompanying drawing explanation
Fig. 1 is the lower well heater fixed sturcture schematic diagram of accurate single-crystal ingot casting furnace.
Embodiment
Below by embodiment and accompanying drawing, this device is described in further detail:
Referring to Fig. 1, the lower well heater fixed sturcture of accurate single-crystal ingot casting furnace, comprise Graphite platform 1, Graphite platform 1 bottom is provided with the lower well heater 4 of a parallel placement, described lower well heater 4 is hung on Graphite platform 1 by two or four double threaded screw 2, described double threaded screw 2 is CC double threaded screw, described double threaded screw 2 is threaded with Graphite platform 1, can double threaded screw 2 be installed by threaded hole is directly directly set on Graphite platform 1, make lower well heater 4 easy for installation, lower well heater 4 positions of each double threaded screw 2 corresponding matching are provided with through hole, described each double threaded screw 2 is through corresponding through hole, double threaded screw 2 lower ends are arranged on hot undercarriage device 4 on nut 6 by joint nut 6, described nut 6 is CC nut, between described bolt and nut and well heater 4, be provided with seal, described seal can adopt in coordinating of described double threaded screw 2 and lower well heater 4 and in through hole, be provided with boron nitride insulated ring 3, described lower well heater 4 is provided with boron nitride pad 5 with nut 6 combination sections, also can adopt a kind of stepped boron nitride insulation covering with location shoulder block, respectively in the cooperation through hole of lower well heater device 4 and lower well heater 4 form insulation with nut combination section.
Lower heater locations is in Graphite platform bottom, at Graphite platform auger shell pit, CC double threaded screw is screwed in, pack boron nitride insulated ring and boron nitride pad into, screw in CC nut, descend like this well heater just to install, boron nitride insulated ring and boron nitride pad have insulating effect, during well heater work instantly, CC double threaded screw is just not charged, and CC nut can be not charged yet.Descend like this well heater and Graphite platform to link together and be fixed on the bottom of Graphite platform.
Claims (4)
1. the lower well heater fixed sturcture of accurate single-crystal ingot casting furnace, it is characterized in that: comprise Graphite platform, Graphite platform bottom is provided with the lower well heater of a parallel placement, described lower well heater is hung on Graphite platform by least two double threaded screws, the lower heater locations of each double threaded screw corresponding matching is provided with through hole, described each double threaded screw is through corresponding through hole, double threaded screw lower end is arranged on lower well heater on nut by joint nut, between described bolt and nut and lower well heater, is provided with seal.
2. the lower well heater fixed sturcture of accurate single-crystal ingot casting furnace according to claim 1, it is characterized in that: described seal is that described double threaded screw is provided with boron nitride insulated ring with coordinating in through hole of lower well heater, and described lower well heater and nut combination section are provided with boron nitride pad.
3. the lower well heater fixed sturcture of accurate single-crystal ingot casting furnace according to claim 1, it is characterized in that: described seal is a kind of stepped boron nitride insulation covering with location shoulder block, respectively in the cooperation through hole of lower well heater and lower well heater and nut combination section form and insulate.
4. the lower well heater fixed sturcture of accurate single-crystal ingot casting furnace according to claim 1, is characterized in that: described double threaded screw is threaded with Graphite platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469893.5U CN203569232U (en) | 2013-08-03 | 2013-08-03 | Lower heater fixing structure of quasi-monocrystalline silicon ingot furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469893.5U CN203569232U (en) | 2013-08-03 | 2013-08-03 | Lower heater fixing structure of quasi-monocrystalline silicon ingot furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569232U true CN203569232U (en) | 2014-04-30 |
Family
ID=50536974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320469893.5U Expired - Fee Related CN203569232U (en) | 2013-08-03 | 2013-08-03 | Lower heater fixing structure of quasi-monocrystalline silicon ingot furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203569232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409798A (en) * | 2013-08-03 | 2013-11-27 | 安徽大晟新能源设备科技有限公司 | Fixing structure of lower heater of pseudo-single crystal ingot furnace |
| TWI615512B (en) * | 2016-06-15 | 2018-02-21 | 上海新昇半導體科技有限公司 | Monocrystalline silicon growth furnace |
-
2013
- 2013-08-03 CN CN201320469893.5U patent/CN203569232U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409798A (en) * | 2013-08-03 | 2013-11-27 | 安徽大晟新能源设备科技有限公司 | Fixing structure of lower heater of pseudo-single crystal ingot furnace |
| CN103409798B (en) * | 2013-08-03 | 2016-02-24 | 安徽大晟新能源设备科技有限公司 | The lower well heater fixed sturcture of accurate single-crystal ingot casting furnace |
| TWI615512B (en) * | 2016-06-15 | 2018-02-21 | 上海新昇半導體科技有限公司 | Monocrystalline silicon growth furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20160803 |