CN207775389U - Ingot furnace - Google Patents
Ingot furnace Download PDFInfo
- Publication number
- CN207775389U CN207775389U CN201820071337.5U CN201820071337U CN207775389U CN 207775389 U CN207775389 U CN 207775389U CN 201820071337 U CN201820071337 U CN 201820071337U CN 207775389 U CN207775389 U CN 207775389U
- Authority
- CN
- China
- Prior art keywords
- crucible
- thermal insulation
- insulation board
- ingot furnace
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims abstract description 45
- 239000002210 silicon-based material Substances 0.000 claims abstract description 24
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000008018 melting Effects 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052571 earthenware Inorganic materials 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 39
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The utility model provides a kind of ingot furnace, belong to single crystal preparation technical field, crucible including furnace body and in the furnace body, the thermal insulation board that the crucible is divided into upper chamber and lower chambers is equipped in the crucible, the surrounding of the thermal insulation board and the inner wall of the crucible are closely connected, the crucible is externally provided with the rotating mechanism for making the thermal insulation board overturning, after the thermal insulation board overturning, the upper chamber in the crucible is connected to the lower chambers, the crucible is externally provided with the infrared temperature probe for measuring melting silicon materials temperature in crucible, the infrared temperature probe and the rotating mechanism are electrically connected with control module.Ingot furnace provided by the utility model can solve class monocrystalline existing in the prior art and make technical problem difficult, that crystal forming rate is low.
Description
Technical field
The utility model belongs to single crystal preparation technical field, is to be related to a kind of ingot furnace more specifically.
Background technology
Class monocrystalline is a kind of new technology, is the transformation by polycrystalline processing procedure when long brilliant, in the feelings that raw material quality is constant
Under condition, by the product that polycrystalline growth is single crystal-like.It is to be laid with one layer of monocrystal conduct at polycrystalline crucible bottom when class single crystal preparation
Seed body needs artificially to be confirmed with the height of glass bar test fusing and be melted to bottom after seed body melts fraction
Seed crystal position, then reduces temperature, starts long crystalline substance.The cell piece high conversion efficiency that class single crystal rod is made than polycrystalline ingot a bit, but
Cost of manufacture will increased, and yield rate will reduce.Wherein, the main component of polycrystalline crucible is the silica of melting,
Its content be more than 99.5%, fusing point is in 1700 degrees centigrades, in polycrystalline ingot furnace, polycrystalline crucible be crystal melting, growth,
Cooling container.
Class monocrystalline is exactly to cast out large scale crystal grain with the method for polycrystalline cast ingot, it is combined with monocrystalline manufacture and polycrystalline casting
The advantage of both ingots, monocrystalline high conversion efficiency, but it is of high cost, height is required to material purity, the manufacture of class monocrystalline is exactly in crucible
Last layer single crystal ingot is put in bottom, is similar to the seed crystal of crystal-pulling, and control fusion process does not allow " seed crystal " to be completely melt, this is to close
Key (if seed crystal is completely melt that class monocrystalline cannot be made) then carries out long crystalline substance on " seed crystal " not melted, so that it may with
Grow big crystal grain.
Currently, by taking G6 ingot furnaces as an example, feed intake 800kg, produces 36 crystal blocks altogether, but at most only 16 crystal blocks can
To be grown to class single crystal ingot, for crystal forming rate less than 50%, cost of manufacture is higher, and class monocrystalline production method is extremely difficult, needs to lead to
Manual testing is crossed to determine the height of seed crystal, it is time-consuming and laborious.
Utility model content
The purpose of this utility model is to provide a kind of ingot furnaces, tired to solve class monocrystalline making existing in the prior art
Technical problem difficult, crystal forming rate is low.
To achieve the above object, the technical solution adopted in the utility model is：A kind of ingot furnace is provided, including furnace body and is set
Crucible in the furnace body, the crucible is interior equipped with the thermal insulation board that the crucible is divided into upper chamber and lower chambers, described
The surrounding of thermal insulation board and the inner wall of the crucible are closely connected, and the crucible is externally provided with the whirler for making the thermal insulation board overturning
Structure, after the thermal insulation board overturning, the upper chamber in the crucible is connected to the lower chambers, and the crucible, which is externally provided with, to be used for
Measure the infrared temperature probe of melting silicon materials temperature in crucible, the infrared temperature probe and the rotating mechanism with control
Molding block is electrically connected.
Further, the rotating mechanism includes the driving motor being set to outside the crucible and the master with the driving motor
The connected shaft of axis, the shaft extend into the crucible and are fixedly connected with the lower surface of the thermal insulation board, the shaft
The side wall rotation connection opposite with two of the crucible, the driving motor are electrically connected with the control module.
Further, the lower surface of the thermal insulation board is fixed with two axle sleeves, the shaft and two axle sleeve mistakes
It is full of cooperation, when shaft rotation drives the axle sleeve and the thermal insulation board to rotate with.
Further, the axle sleeve and the shaft pass through a Flat dey joint.
Further, the axle sleeve and the shaft are coupled by spline.
Further, the both sides of each axle sleeve are arranged with the supporting rod for being used to support the thermal insulation board.
Further, it is additionally provided with alarm, the alarm is connected with the control module.
Further, the crucible is silica crucible.
The advantageous effect of ingot furnace provided by the utility model is：Compared with prior art, the utility model ingot furnace,
It will be divided into two chambers up and down inside crucible by thermal insulation board, silicon material laid on upper chamber's thermal insulation board, seed crystal is placed on cavity of resorption
Interior, carrying out heating to crucible makes melting silicon materials, and the temperature of fusing is constantly measured by infrared temperature probe, works as silicon material
It is completely melt as liquid, when seed crystal is also unfused, rotating mechanism starts, and so that thermal insulation board is rotated, between thermal insulation board and crucible internal walls
Gap is formed, the silicon material of the melting on thermal insulation board enters lower chambers by gap, starts crystal growth.It is provided by the utility model
Ingot furnace, it is molten in silicon material since silicon material and seed crystal are respectively in two different chambers by the way that crucible is divided into two chambers up and down
When change, by infrared temperature probe, fusion temperature is accurately detected so that seed crystal will not melt, then carry out crystal growth, significantly
Improve crystal forming rate.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the ingot furnace that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram one of the crucible for the ingot furnace that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram two of the crucible for the ingot furnace that the utility model embodiment provides.
Wherein, each reference numeral in figure：
1- crucibles；2- infrared temperature probes；3- thermal insulation boards；4- shafts；5- axle sleeves；6- supporting rods；7- lower chambers；On 8-
Chamber.
Specific implementation mode
In order to make technical problem to be solved in the utility model, technical solution and advantageous effect be more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, does not indicate or imply the indicated device or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 3, now ingot furnace provided by the utility model is illustrated.The ingot furnace, including
The crucible 1 is divided into upper chamber 8 and lower chambers 7 by furnace body and the crucible 1 in the furnace body, interior be equipped with of the crucible 1
Thermal insulation board 3, the surrounding of the thermal insulation board 3 and the inner wall of the crucible 1 are closely connected, the crucible 1 be externally provided with for make it is described every
The rotating mechanism that hot plate 3 is overturn, after the thermal insulation board 3 is overturn, the upper chamber 8 and the lower chambers 7 in the crucible 1 connect
Logical, the crucible 1 is externally provided with the infrared temperature probe 2 for measuring melting silicon materials temperature in crucible 1, and the infrared measurement of temperature passes
Sensor 2 and the rotating mechanism are electrically connected with control module.
Ingot furnace provided by the utility model, compared with prior art, the utility model ingot furnace will by thermal insulation board 3
It is divided into two chambers up and down inside crucible 1, lays silicon material on 8 thermal insulation board 3 of upper chamber, seed crystal is placed in lower chambers 7, to earthenware
Crucible 1, which carries out heating, makes melting silicon materials, and the temperature of fusing is constantly measured by infrared temperature probe 2, when silicon material is completely molten
Liquid is turned to, when seed crystal is also unfused, rotating mechanism starts, and thermal insulation board 3 is made to rotate, and is formed between 1 inner wall of thermal insulation board 3 and crucible
The silicon material in gap, the melting on thermal insulation board 3 enters lower chambers 7 by gap, starts crystal growth.Casting provided by the utility model
Ingot stove, it is molten in silicon material since silicon material and seed crystal are respectively in two different chambers by dividing crucible 1 for upper and lower two chambers
When change, by infrared temperature probe 2, fusion temperature is accurately detected so that seed crystal will not melt, then carry out crystal growth, greatly
Improve crystal forming rate greatly.
It further illustrates, polycrystalline silicon ingot or purifying furnace is mainly used for the big production of solar-grade polysilicon ingot, it is using first
Into polysilicon directional freezing technology, will after silicon material high-temperature fusion by special process orient condensation-crystallization, to reach the sun
Can battery production polysilicon quality requirement, be it is a kind of be suitable for long time continuous working, high-precision, high reliability, automatically
The high big production equipment of intelligence of change degree.
Ingot furnace be one have whole heating, growth, refrigerating function production equipment.Crucible 1 is silicon heating, life
Long, cooling protection container.
Further, also referring to Fig. 2 and Fig. 3, a kind of specific implementation as ingot furnace provided by the utility model
Mode, the rotating mechanism include the driving motor being set to outside the crucible 1 and turn being connected with the main shaft of the driving motor
Axis 4, the shaft 4 extend into the crucible 1 and are fixedly connected with the lower surface of the thermal insulation board 3, the shaft 4 with it is described
Two opposite side wall rotation connections of crucible 1, the driving motor are electrically connected with the control module.The utility model
Crucible 1 is designed as two chambers up and down, is laid with one layer of monocrystal as seed body in lower chambers 7, centre passes through high temperature resistant heat insulation
Plate 3 completely cuts off, and after the completion of the melting silicon materials of upper chamber 8, infrared temperature probe 2 detects temperature when melting silicon materials are completed,
Namely infrared temperature probe 2 is tested when reaching 1420 ± 30 degree to temperature, passes the signal along to control module, control module is given
Driving motor sends out signal, and driving motor starts, and so that shaft 4 is rotated, two opposite sides of thermal insulation board 3 are rotated away from crucible
1 inner wall forms gap, the silicon material of fusing is made to enter lower chambers 7, into temperature-fall period, starts long crystalline substance, this process is completely no longer
Need with glass bar test silicon material whether be melted to seed crystal, and can precisely measure melting silicon materials complete and seed crystal does not start to melt
When state, improve the crystal forming rate of monocrystalline.
Using this ingot furnace, by the way that seed crystal and silicon material are separated into two temperature ranges, using infrared technique to fusing
Temperature accurately controls, and grows full monocrystal silicon, can directly promote 50% crystal forming rate of original technology to 100% one-tenth crystalline substance
Rate.
Further, Fig. 2 to Fig. 3 is please referred to, as a kind of specific implementation mode of ingot furnace provided by the utility model,
The lower surface of the thermal insulation board 3 is fixed with two axle sleeves 5, and the shaft 4 and two axle sleeves 5 are interference fitted, described turn
Axis 4 drives the axle sleeve 5 and the thermal insulation board 3 to rotate with when rotating.Shaft 4 is connect by axle sleeve 5 with thermal insulation board 3, installation
It is convenient.
Further, refering to Fig. 2 and Fig. 3, as a kind of specific implementation mode of ingot furnace provided by the utility model, institute
It states axle sleeve 5 and the shaft 4 and passes through a Flat dey joint.By Flat dey joint, dismounting is easy for installation.
Further, Fig. 2 to Fig. 3 is please referred to, as a kind of specific implementation mode of ingot furnace provided by the utility model,
The axle sleeve 5 and the shaft 4 are coupled by spline.Coupled by spline, dismounting is easy for installation.
Further, referring to Fig. 1, a kind of specific implementation mode as ingot furnace provided by the utility model, each
The both sides of a axle sleeve 5 are arranged with the supporting rod 6 for being used to support the thermal insulation board 3.By supporting rod 6, thermal insulation board 3 is risen
To support and the effect stablized, it is conducive to thermal insulation board 3 and keeps balance.
Further, as a kind of specific implementation mode of ingot furnace provided by the utility model, it is additionally provided with alarm, institute
Alarm is stated with the control module to be connected.When 2 measured temperature of infrared temperature probe reaches 1420 ± 30 degrees Celsius, silicon material
Fusing is completed, and control module receives signal, signal is passed to alarm, sends out alarm, signal is passed to driving motor,
It drives thermal insulation board 3 to rotate, reduces temperature, grow monocrystalline.
Further, as a kind of specific implementation mode of ingot furnace provided by the utility model, the crucible is quartz
Crucible.Thermal insulation board is molybdenum materials.Wherein, shaft 4, axle sleeve 5 and supporting rod 6 are high temperature resistant material.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (8)
1. ingot furnace, including furnace body and the crucible in the furnace body, it is characterised in that：It is equipped with the earthenware in the crucible
Crucible is divided into the thermal insulation board of upper chamber and lower chambers, and the surrounding of the thermal insulation board and the inner wall of the crucible are closely connected, the crucible
It is externally provided with the rotating mechanism for making the thermal insulation board overturning, after the thermal insulation board overturning, the upper chamber in the crucible
It is connected to the lower chambers, the crucible is externally provided with the infrared temperature probe for measuring melting silicon materials temperature in crucible, institute
Infrared temperature probe and the rotating mechanism is stated to be electrically connected with control module.
2. ingot furnace as described in claim 1, it is characterised in that：The rotating mechanism includes the driving being set to outside the crucible
Motor and the shaft being connected with the main shaft of the driving motor, the shaft extend into the crucible and with the thermal insulation board
Lower surface is fixedly connected, and two opposite side walls of the shaft and the crucible are rotatablely connected, the driving motor with it is described
Control module is electrically connected.
3. ingot furnace as claimed in claim 2, it is characterised in that：The lower surface of the thermal insulation board is fixed with two axle sleeves,
The shaft is interference fitted with two axle sleeves, and the shaft drives the axle sleeve and the thermal insulation board to revolve therewith when rotating
Turn.
4. ingot furnace as claimed in claim 3, it is characterised in that：The axle sleeve and the shaft pass through a Flat dey joint.
5. ingot furnace as claimed in claim 3, it is characterised in that：The axle sleeve and the shaft are coupled by spline.
6. ingot furnace as claimed in claim 3, it is characterised in that：The both sides of each axle sleeve, which are arranged with, to be used to support
The supporting rod of the thermal insulation board.
7. ingot furnace as described in claim 1, it is characterised in that：It is additionally provided with alarm, the alarm and the control mould
Block is connected.
8. ingot furnace as described in claim 1, it is characterised in that：The crucible is silica crucible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820071337.5U CN207775389U (en) | 2018-01-16 | 2018-01-16 | Ingot furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820071337.5U CN207775389U (en) | 2018-01-16 | 2018-01-16 | Ingot furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207775389U true CN207775389U (en) | 2018-08-28 |
Family
ID=63212942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820071337.5U Expired - Fee Related CN207775389U (en) | 2018-01-16 | 2018-01-16 | Ingot furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207775389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112621A (en) * | 2018-10-30 | 2019-01-01 | 浙江羿阳太阳能科技有限公司 | A kind of energy conservation ingot casting device |
-
2018
- 2018-01-16 CN CN201820071337.5U patent/CN207775389U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112621A (en) * | 2018-10-30 | 2019-01-01 | 浙江羿阳太阳能科技有限公司 | A kind of energy conservation ingot casting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180828 |