CN207130360U - A kind of heater - Google Patents
A kind of heater Download PDFInfo
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- CN207130360U CN207130360U CN201720787278.7U CN201720787278U CN207130360U CN 207130360 U CN207130360 U CN 207130360U CN 201720787278 U CN201720787278 U CN 201720787278U CN 207130360 U CN207130360 U CN 207130360U
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- groove
- heating plate
- heater
- heater body
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Abstract
The utility model provides a kind of heater, including integrally formed cylindric heater body, the heater body is enclosed by connection sheet alternating series connection by multiple long heating plates and multiple short heating plates and formed, the long heating plate is wide with the short heating plate and top is concordant sets, each formed with gap between long heating plate and its adjacent short heating plate, at the top of each long heating plate radially one first groove is offered along heater body, at the top of each short heating plate radially one second groove is offered along heater body, first groove groove depth is more than the second groove groove depth.Heater described in the utility model reduces the reaction of bottom and side lower part during crystal pulling, and then realizes the reduction of oxygen content, meanwhile, by adjusting crucible and heater relative position, avoid melting silicon materials from occurring crystallizing risk again early stage.
Description
Technical field
The utility model belongs to monocrystalline silicon production field, more particularly, to a kind of heater.
Background technology
Monocrystalline silicon is the important raw and processed materials of crystal silicon battery, photovoltaic market fast development in recent years, competes and is also growing more intense；For
The technology such as photoelectric transformation efficiency, IBC, HIT, PERC for improving crystal silicon battery starts to be applied to large-scale production；In actual production,
Monocrystalline silicon typically all can be also aerobic, and oxygen distribution is that head height tail is low, the oxygen in raw material monocrystalline silicon, can be with dopant boron element
B-O complexs are formed, cause crystal silicon battery electricity conversion to decline, can also influence the using effect of new technology, therefore reduce
Oxygen content has profound significance to photovoltaic industry in monocrystalline silicon.
There is oxygen content method in current reduction pulling of silicon single crystal：
1st, using magnetic field pulling monocrystal, i.e.,：MCZ techniques, magnetic field can suppress the thermal convection current of melt, turn to draw using low crucible
Monocrystalline, reduces the reaction speed of silica crucible and melt silicon, while magnetic field can weaken in melt oxygen to the fortune in growth boundary layer
It is dynamic, and then reduce oxygen content in monocrystalline silicon.Oxygen positive effect is dropped using magnetic field pulling monocrystal, but magnetic field means are expensive, and transport
Energy consumption is big during row, and crystal-pulling cost is higher, can not be applied to photovoltaic industry with keen competition.
2nd, by work parameter adjustment, such as：Argon flow amount, furnace pressure, crystalline substance turn crucible turn etc., can reduce oxygen content, but effect is poor,
Yield rate can receive influence；Part company, which equally changes heater structure, reduces oxygen content, but its structure is relative complex, and can not
Effectively solves the risk brought after heater structure changes.
In addition, during crystal pulling, typically can all vacuum pumping, the source of oxygen during crystal pulling be carried out to oxygen in thermal field
The bottom of the mainly reaction of melt silicon and silica crucible, especially crucible and side lower part reaction are violent, are the main next of oxygen introducing
Source.
Utility model content
In view of this, the utility model is directed to a kind of heater, to solve in existing monocrystalline silicon production because of oxygen content
Quality problems caused by height.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of heater, including integrally formed cylindric heater body, the heater body is by multiple long heating
Piece and multiple short heating plates, which by connection sheet replace series connection and enclosed, to be formed, and the long heating plate and the short heating plate are wide and push up
Portion is concordantly set, and the heater body top is high-temperature region, and its underpart is low-temperature space, short adjacent with its of each long heating plate
One first groove radially is offered along heater body formed with gap, each long heating plate top between heating plate, each
One second groove radially is offered along heater body at the top of short heating plate, the first groove groove depth is more than the second groove groove depth.
Further, the short heating leaf length and long heating leaf length ratio are between 1/5 to 3/4.
Further, the first groove width, the wide setting of the second groove width and gap, the width are 10-20mm.
Further, the first groove thickness of groove bottom and the second groove thickness of groove bottom are identical, and the thickness is equal to connection sheet
Highly, while the thickness=long heating plate width/2.
Relative to prior art, heater described in the utility model has the advantage that：
Heater described in the utility model is enclosed and formed by the alternately long heating plate of series connection and short heating plate, and on
Part fever tablet is intensive, and caloric value is big, and lower part caloric value is few, so as to reduce the anti-of bottom and side lower part during crystal pulling
Should, and then the reduction of oxygen content is realized, meanwhile, by adjusting crucible and heater relative position, avoid melting silicon materials from going out early stage
Now crystallize risk again, when ensureing crystal pulling, liquid level is in high-temperature region in crucible, and power consumption can reduce during such crystal pulling, lower power consumption meeting
The reaction of weaker silica crucible and melt silicon, and then oxygen content can be reduced.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the heater structure schematic diagram described in the utility model embodiment；
Description of reference numerals：
1- heater bodies；The long heating plates of 11-；The grooves of 111- first；
The grooves of 121- second；The short heating plates of 12-；13- gaps；
14- connection sheets；2- crucibles.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of heater, including integrally formed cylindric heater body 1, the heater body 1
Series connection replaced by connection sheet 14 by multiple long heating plates 11 and multiple short heating plates 12 enclose and form, the short heating plate 12 is grown
Degree：The long lenth ratio of heating plate 11 is between 1/5 to 3/4, the long heating plate 11 and short heating plate 12 is wide and top horizontal
Neat to set, the long bottom of heating plate 11 is protruded short heating plate 12 and set, therefore the top of heater body 1 is high-temperature region, and bottom is low
Warm area, each formed with gap 13 between long heating plate 11 and its adjacent short heating plate 12, gap width 10-20mm is each
The individual top of long heating plate 11 offers one first groove 111, and the center line of the first groove 111 and length along the radial direction of heater body 1
Heating plate 11 intersects along the axial direction center line of heater body 1, and each short top of heating plate 12 is opened along the radial direction of heater body 1
Provided with one second groove 121, and the center line of the second groove 121 and short heating plate 12 are along the axial direction center line phase of heater body 1
Hand over, the width of the first groove 111, the width of the second groove 121 are wide, and equal with the width of gap 13 respectively, the first groove 111
Groove depth is more than the groove depth of the second groove 121.
In the present embodiment, the thickness of groove bottom of the first groove 111 and the thickness of groove bottom of the second groove 121 are identical, the thickness etc.
In the height of connection sheet 14, while the thickness=width/2 of long heating plate 11, the structure ensure heter temperature uniformity.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (4)
- A kind of 1. heater, it is characterised in that：Including integrally formed cylindric heater body (1), the heater body (1) enclosed and formed by connection sheet (14) alternating series connection by multiple long heating plates (11) and multiple short heating plates (12), the length Heating plate (11) is wide with the short heating plate (12) and top is concordant sets, and the heater body top is high-temperature region, its Bottom is low-temperature space, each formed with gap (13), each length between long heating plate (11) and its adjacent short heating plate (12) One first groove (111) is radially offered along heater body (1) at the top of heating plate (11), at the top of each short heating plate (12) One second groove (121) is radially offered along heater body (1), the first groove (111) groove depth is more than the second groove (121) groove It is deep.
- A kind of 2. heater according to claim 1, it is characterised in that：Short heating plate (12) length and long heating plate (11) between length ratio is 1/5 to 3/4.
- A kind of 3. heater according to claim 1, it is characterised in that：First groove (111) width, the second groove (121) width and gap (13) wide setting, the width are 10-20mm.
- A kind of 4. heater according to claim 1, it is characterised in that：First groove (111) thickness of groove bottom and Two grooves (121) thickness of groove bottom is identical, and the thickness is equal to connection sheet (14) height, while the thickness=long heating plate (11) is wide Degree/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787278.7U CN207130360U (en) | 2017-06-30 | 2017-06-30 | A kind of heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787278.7U CN207130360U (en) | 2017-06-30 | 2017-06-30 | A kind of heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130360U true CN207130360U (en) | 2018-03-23 |
Family
ID=61633361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720787278.7U Active CN207130360U (en) | 2017-06-30 | 2017-06-30 | A kind of heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207130360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460539A (en) * | 2017-06-30 | 2017-12-12 | 内蒙古中环光伏材料有限公司 | A kind of monocrystalline silicon production method of heater and the application heater |
| WO2023029708A1 (en) * | 2021-08-31 | 2023-03-09 | 银川隆基硅材料有限公司 | Heater and single crystal furnace thermal field |
-
2017
- 2017-06-30 CN CN201720787278.7U patent/CN207130360U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460539A (en) * | 2017-06-30 | 2017-12-12 | 内蒙古中环光伏材料有限公司 | A kind of monocrystalline silicon production method of heater and the application heater |
| WO2023029708A1 (en) * | 2021-08-31 | 2023-03-09 | 银川隆基硅材料有限公司 | Heater and single crystal furnace thermal field |
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