CN202279871U - Ceramic crucible for polycrystalline silicon ingoting - Google Patents
Ceramic crucible for polycrystalline silicon ingoting Download PDFInfo
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- CN202279871U CN202279871U CN2011204312930U CN201120431293U CN202279871U CN 202279871 U CN202279871 U CN 202279871U CN 2011204312930 U CN2011204312930 U CN 2011204312930U CN 201120431293 U CN201120431293 U CN 201120431293U CN 202279871 U CN202279871 U CN 202279871U
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- crucible
- coaming plate
- ceramic
- polycrystalline silicon
- crucible body
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Abstract
The utility model discloses a ceramic crucible for polycrystalline silicon ingoting. The ceramic crucible comprises a crucible main body and a crucible enclosing frame, wherein the height of the crucible main body is equal to or greater than the depth of a liquid silicon material formed in the crucible main body; and the lower edge of the crucible enclosing frame is matched with the upper edge of the crucible main body. Through the arrangement, the ceramic crucible disclosed by the utility model can effectively reduce crucible waste.
Description
Technical field
The utility model relates to new forms of energy processing units field, relates to a kind of ceramic crucible that is used for polycrystalline silicon ingot casting more specifically.
Background technology
China's economic construction had obtained develop rapidly in recent years, and expanding economy be unable to do without the exploitation and the utilization of the energy.Yet along with the continuous minimizing of traditional energy, new forms of energy become the main flow of various countries' energy strategy gradually, wherein, photovoltaic industry in new forms of energy in occupation of critical role.
The main raw material(s) of photovoltaic module is a silicon, in the ingot casting operation of polysilicon, need vacuumize, fusing, crystallization, annealing and five stages of cooling.Wherein, the fusion stage mainly is melted into liquid state with scattered solid silicon material, and crystallisation stage then makes polysilicon realize oriented growth (also claiming directional freeze) through certain mode.
Before carrying out casting ingot process, need scattered silicon material be packed into sprays in the good ceramic crucible, and fixes with the graphite backplate, drops into and carries out ingot casting in the polycrystalline furnace.According to processing requirement, ceramic crucible has different models, for example, has the ceramic crucible that a kind of height is 420mm on the market, and its charging capacity is about 440kg, and the silicon ingot height that casts out is 270mm-290mm.
Liquid state when the melt stage, the silicon material melted fully highly is 250-270mm, with respect to the height of crucible, at least still has the space of 130mm height not to be utilized.Once just can scrap because crucible uses, the space of the about 130mm of promptly above-mentioned crucible is not utilized is promptly scrapped, and has caused more serious waste.
Therefore, in silicon material ingot casting process, the waste that how to reduce crucible becomes those skilled in the art's important technological problems to be solved.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of ceramic crucible that is used for polycrystalline silicon ingot casting, can effectively reduce the crucible waste.
The utility model provides a kind of ceramic crucible that is used for polycrystalline silicon ingot casting; Comprise that crucible body and crucible enclose frame; The height of said crucible body is equal to or greater than the degree of depth of the liquid-state silicon material that forms in the crucible body, and it is suitable that said crucible encloses the upper edge of lower edge and said crucible body of frame.
Preferably, also comprise and be set in said crucible body and said crucible encloses the coaming plate of the contacted outer edge of frame position.
Preferably, the upper end flush of the lower end of said coaming plate and said crucible body, and the upper end of said coaming plate is higher than the upper end of said crucible body.
Preferably, said coaming plate is the graphite coaming plate.
Preferably, said coaming plate is quartzy coaming plate.
Preferably, the height of said crucible body is 310-380mm, and the height of said coaming plate is 40-110mm.
The ceramic crucible that is used for polycrystalline silicon ingot casting that the utility model provides; Comprise that crucible body and crucible enclose frame; The height of said crucible body is equal to or greater than the degree of depth of the liquid-state silicon material that forms in the crucible body, and it is suitable that said crucible encloses the upper edge of lower edge and said crucible body of frame.
Need to prove that the height of crucible body is equal to or greater than the degree of depth of the silicon material that forms in the crucible body, promptly after the silicon material melts, guarantee that the liquid-state silicon material can not overflow the crucible body and get final product in the crucible body.So setting when the ceramic crucible that uses the utility model to provide carries out ingot casting, is at first enclosed the upper edge that frame is positioned over the crucible body with crucible, and the silicon material of then in crucible, packing into, crucible enclose frame and can guarantee to place enough silicon material in the crucible and can not be scattered.In addition, the silicon material of smaller size smaller is placed in the middle part of crucible, is used for the silicon material of ccontaining comparatively large vol near the position of crucible wall.So; During the fusing of silicon material, the silicon material of crucible middle part is fusing earlier, and the silicon material of avris collapses to the mid-way; The silicon material that so can effectively evade fusing encloses frame with crucible and contacts, and then has effectively evaded the silicon material that melts and enclosed the effusive problem of seam crossing between the frame by crucible body and crucible.Because crucible encloses intercepting gained on the crucible that frame can be scrapped by manufacturer, so that crucible encloses the frame cost is lower even can ignore.
Obviously, so be provided with, with respect to prior art, the ceramic crucible that the utility model provides effectively reduces crucible waste problem, has practiced thrift production cost.
Description of drawings
Fig. 1 is a crucible window frame structure synoptic diagram in the utility model embodiment;
Fig. 2 is a ceramic crucible structural representation in the utility model embodiment;
Fig. 3 is a ceramic crucible structural representation in the another kind of embodiment of the utility model.
Embodiment
The utility model provides a kind of ceramic crucible that is used for polycrystalline silicon ingot casting, can effectively reduce the crucible waste.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1-Fig. 3, Fig. 1 is a crucible window frame structure synoptic diagram in the utility model embodiment; Fig. 2 is a ceramic crucible structural representation in the utility model embodiment; Fig. 3 is a ceramic crucible structural representation in the another kind of embodiment of the utility model.
The ceramic crucible that is used for polycrystalline silicon ingot casting that this embodiment provided; Comprise that crucible body 11 and crucible enclose frame 12; It is suitable that crucible encloses the upper edge of lower edge and crucible body 11 of frame 12; Be that crucible encloses frame 12 and can be positioned on the crucible body 11, and each lower edge that crucible encloses frame 12 contact with each upper edge of crucible body 11.
In addition; The height of crucible body 11 need be equal to or greater than the degree of depth of the liquid-state silicon material that forms in the crucible body 11, and preferably, the height of crucible body 11 is greater than the degree of depth of the liquid-state silicon material that forms in it; After avoiding the fusing of silicon material, the liquid-state silicon material is by overflowing in the crucible body 11.
So be provided with; When the use ceramic crucible that this embodiment provided carries out ingot casting; At first crucible is enclosed the upper edge that frame 12 is positioned over crucible body 11, the silicon material of then in crucible, packing into, crucible enclose frame 12 and can guarantee to place enough silicon material in the crucible and can not be scattered.
In addition, the silicon material of smaller size smaller is placed in the middle part of crucible, is used for the silicon material of ccontaining comparatively large vol near the position of crucible wall.So; During the fusing of silicon material, the silicon material of crucible middle part is fusing earlier, and the silicon material of avris collapses to the mid-way; The silicon material that so can effectively evade fusing encloses frame with crucible and contacts, and then has effectively evaded the silicon material that melts and enclosed the effusive problem of seam crossing between the frame by crucible body and crucible.
Because crucible encloses intercepting gained on the crucible that frame 12 can be scrapped by manufacturer, so that crucible encloses frame 12 costs is lower even can ignore.
Obviously, so be provided with, with respect to prior art, the ceramic crucible that this embodiment provided effectively reduces crucible waste problem, has practiced thrift production cost.
Need to prove that in the silicon material melting process, the temperature of crucible body 11 is higher, crucible body 11 is heated and can expands, and causes crucible to enclose frame 12 by the problem that drops on the crucible body 11 in order to prevent that crucible from expanding.In order to prevent that in the charging process crucible encloses the mutual changing of the relative positions takes place between frame 12 and the crucible body 11, and causes crucible to enclose the problem that frame 12 is dropped by crucible body 11, this embodiment can be like following setting in addition.
The ceramic crucible that this embodiment provided can comprise that also being set in crucible body 11 encloses the coaming plate 13 of frame 12 contacted outer edge positions with crucible.So be provided with, coaming plate 13 can enclose frame 12 with crucible body 11 and crucible and be socketed on together, can effectively evade the problem that the relative changing of the relative positions takes place for crucible body 11 and crucible coaming plate 12.
In the preferred version of this embodiment, the upper end flush of the lower end of coaming plate 13 and crucible body 11, and the upper end of coaming plate 13 is higher than the upper end of crucible body 11.
So be provided with, coaming plate 13 can enclose crucible body 11 and crucible on the basis that frame 12 is connected together, and the lower end of coaming plate 13 is concordant with the lower end of crucible body 11, and then can effectively prevent the problem of coaming plate 13 along the periphery downslide of crucible body 11.
In addition, need to prove that coaming plate 13 need have enough intensity, when avoiding crucible body 11 that thermal expansions take place, the problem that coaming plate 13 is risen brokenly.Given this, coaming plate 13 can be specially graphite coaming plate 13, should be appreciated that graphite coaming plate 13 has sufficient intensity, the problem that can effectively avoid coaming plate 13 to rise brokenly.Certainly, coaming plate 13 also can be the coaming plate of other material, such as, quartzy coaming plate.
In addition, need to prove that the crucible body that this embodiment provided and the concrete height of coaming plate can specifically be set as the case may be, the utility model does not specifically highly limit the two.For example, the height of crucible body can be 310-380mm, and the height of coaming plate can be 40-110mm.
More than a kind of ceramic crucible that is used for polycrystalline silicon ingot casting that the utility model provided has been carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
1. ceramic crucible that is used for polycrystalline silicon ingot casting; It is characterized in that; Comprise that crucible body and crucible enclose frame, the height of said crucible body is equal to or greater than the degree of depth of the liquid-state silicon material that forms in the crucible body, and it is suitable that said crucible encloses the upper edge of lower edge and said crucible body of frame.
2. the ceramic crucible that is used for polycrystalline silicon ingot casting as claimed in claim 1 is characterized in that, also comprises being set in said crucible body and said crucible encloses the coaming plate of the contacted outer edge of frame position.
3. the ceramic crucible that is used for polycrystalline silicon ingot casting as claimed in claim 2 is characterized in that, the upper end flush of the lower end of said coaming plate and said crucible body, and the upper end of said coaming plate is higher than the upper end of said crucible body.
4. the ceramic crucible that is used for polycrystalline silicon ingot casting as claimed in claim 3 is characterized in that, said coaming plate is the graphite coaming plate.
5. the ceramic crucible that is used for polycrystalline silicon ingot casting as claimed in claim 3 is characterized in that, said coaming plate is quartzy coaming plate.
6. the ceramic crucible that is used for polycrystalline silicon ingot casting as claimed in claim 3 is characterized in that, the height of said crucible body is 310-380mm, and the height of said coaming plate is 40-110mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204312930U CN202279871U (en) | 2011-11-03 | 2011-11-03 | Ceramic crucible for polycrystalline silicon ingoting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204312930U CN202279871U (en) | 2011-11-03 | 2011-11-03 | Ceramic crucible for polycrystalline silicon ingoting |
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| Publication Number | Publication Date |
|---|---|
| CN202279871U true CN202279871U (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204312930U Expired - Fee Related CN202279871U (en) | 2011-11-03 | 2011-11-03 | Ceramic crucible for polycrystalline silicon ingoting |
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| CN (1) | CN202279871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087054A (en) * | 2016-08-26 | 2016-11-09 | 常熟华融太阳能新型材料有限公司 | A kind of Novel polycrystalline silicon quartz crucible for ingot casting card article |
-
2011
- 2011-11-03 CN CN2011204312930U patent/CN202279871U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087054A (en) * | 2016-08-26 | 2016-11-09 | 常熟华融太阳能新型材料有限公司 | A kind of Novel polycrystalline silicon quartz crucible for ingot casting card article |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170810 Address after: 620010 Meishan city town concentrated area Wenlin Sichuan province renshoucounty industry Patentee after: Sichuan Blue Gem Photoelectric Technology Co., Ltd. Address before: 314117 Yao Town Industrial Park, Jiaxing, Zhejiang, Jiashan Patentee before: Yuhui Yangguang Energy Resources Co., Ltd., Zhejiang Prov. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20191103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |