CN109931785A - A kind of new type high temperature transmission crawler belt - Google Patents
A kind of new type high temperature transmission crawler belt Download PDFInfo
- Publication number
- CN109931785A CN109931785A CN201910205669.7A CN201910205669A CN109931785A CN 109931785 A CN109931785 A CN 109931785A CN 201910205669 A CN201910205669 A CN 201910205669A CN 109931785 A CN109931785 A CN 109931785A
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- CN
- China
- Prior art keywords
- track body
- mandril
- support portion
- crawler belt
- vibration reduction
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 210000002268 wool Anatomy 0.000 claims abstract description 8
- 239000003870 refractory metal Substances 0.000 claims abstract description 5
- 230000002459 sustained effect Effects 0.000 claims abstract description 4
- 238000009954 braiding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910001120 nichrome Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims 1
- 238000005245 sintering Methods 0.000 abstract description 13
- 238000001035 drying Methods 0.000 abstract description 8
- 238000013016 damping Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 15
- 230000007547 defect Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000011267 electrode slurry Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 description 1
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 description 1
- 206010024769 Local reaction Diseases 0.000 description 1
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- -1 reacts by drying Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of new type high temperatures to transmit crawler belt, it is related to solar battery drying sintering equipment technical field, the present invention includes track body, several vacancy sections are offered in the middle part of track body, be provided on the inside of vacancy section at least three connect with track body be used to carry solar battery upwarp mandril, mandril top is upwarped in sustained height and is above track body, upwarping mandril includes the vibration reduction support portion that helical structure is bent by refractory metal silk, the silica wool ball contacted with solar-electricity bottom of pond portion is respectively connected at the top of vibration reduction support portion, the present invention has structure simple, damping effect is good, the advantages of reducing the damaged probability with cell piece contact site.
Description
Technical field
The present invention relates to solar batteries to dry sintering equipment technical field, passes more particularly to a kind of new type high temperature
Send crawler belt.
Background technique
Most of commercially availableization solar cell includes crystalline silicon, hetero-junctions, film and laminated material class in the market,
Middle list polycrystalline silicon cells are total to 80% or more accounting, prepare firing temperature and are up to 720-970 DEG C.In all these battery systems
During standby, 90% or more is required by forming of finally metallizing, i.e. the drying sintering process of conductive electrode, and drying sintering is
One divergent fluid physical-chemical reaction comprehensive function process comprising heat radiation, heat transfer and thermal convection, mainly passes through difference
The crawler belt of material transmits the flow-like metal electrode being printed on cell piece under furnace body hot environment together with cell piece,
It is adjusted by warm area appropriate setting, gas flow and belt speed, reaches Alloy Forming condition, be fired into and have solid conduction electrode
Exportable photoelectric conversion efficiency unit component.
The drying sintering furnace being commonly used uses belt IR high temperature Fast Sintering mode, and cell piece bottom is placed in height
On temperature transmission crawler belt wire side, crawler belt is cycling in and out furnace chamber by fulcrum drive, and cell piece upper and lower ends electrode is in being transmitted to furnace chamber
When, 1000 DEG C of each warm area heating temperatures below are heated to through intracavitary infrared quartz Glass tube heater, it is a piece of by crawler-tread
Piece battery melts, reacts by drying, coke discharging, slurry, corrode penetrate, solidify, the processes such as cooling and shaping.Crawler belt is transmitted in high temperature
Upper and lower side be equipped with heat radiation heating tape, CDA, O2, N2 air-flow, which drive, inside furnace chamber carries out balanced thermal convection exchange, it is ensured that
Heat respectively reaches thermal balance in 9-13 warm area of setting, and guarantees the tar evaporated from electrode slurry by Convective Heating
The hot gas of device blowout is taken out of in chamber.Two thermocouples are designed in each warm area, one controls for temperature, and one was used for
Temperature protection.In order to reduce drying, be sintered thermal loss in furnace chamber, surrounding is mounted with thermal insulation board in apparatus cavity, and in chamber
Aluminium reflective insulation board has been loaded on outdoor both sides, allows entire chamber to remain a stable temperature, it is steady to be conducive to technique
It carries out.In the entire drying sintering process of solar cell, battery back requires direct with the high temperature transmission crawler belt in furnace chamber
Contact, but the solar cell transmission crawler belt industrially generally used no matter crankshaft, straight-shaft type, flat filament type, the braidings knot such as B-mode
Structure, although in wire ring-type wind hollow out, all inevitably with cell piece back large area point, wire-shaped contact.In this way,
The braiding structure of crawler belt can block the contact point of its electrode slurry sintered surface of corresponding battery, line, and its position IR heat radiation nearby
It is flowed with thermally conductive, coke discharging thermal current, this makes the being heated evenly property of whole face of cell piece substrate be deteriorated.According to measurement above-mentioned point,
Its temperature difference of line formed contact areas and other unobstructed areas averagely reach 8 DEG C or more.
Since solar battery conductive electrode dries sintering process, whole face is needed to be uniformly heated to fixed warm area setting temperature,
Temperature deviation is controlled at ± 2 DEG C, in quickly completing positive back side cofiring in 2min, based on the sintering of front and supplemented by the sintering of the back side.Before
Phase can widen back electrode sintering process window by the mating chemical composition of rear electrode slurry, and appropriate electrical property of sacrificing is to ignore
This kind of back side local heatings are uneven, but match as the requirement promotion in recent years to cell backside contact electrical property changes slurry
Side, and some novel batteries such as PERC crystalline silicon, HJT hetero-junctions, three-five and the lamination class hull cell gradually developed,
All be more likely to 200-800 DEG C of more low-temperature sintering, it is this blocked because of back side transmission crawler belt caused by uneven heating just gradually make
Contact the uneven EL defect of whole face at back-side gold-half, such as the dotted, band-like of transmission corresponding under electroluminescent crawler belt contact site and
Edge plaque-like shadow, thus causes the yield of new and effective solar cell and stability at later stage to be all affected.On the other hand, exist
Fulcrum drives transmission crawler belt and cell piece in the drying intracavitary portion's traveling process of sintering furnace, crawler belt subregion branch, line and back side electricity
The contact of pole slurry, the local reaction that will cause part unshaped coke discharging slurry is insufficient, or even is adhesively joined with contact site
It falls off, while running more than certain belt speed setting and being easy to produce deformation using crawler belt after the time, is transmitted, transport vibration, big face
Long-pending contact point, line shock also substantially increase battery sheet body contact site damaged probability, generate inside sheet body and edge connects
The bad defects such as a series of scuffings in contact portion position, chipping, notch, perforation and crack.
Therefore above-mentioned technical problem how is solved, there is very much realistic meaning to those skilled in the art.
Summary of the invention
It is an object of the invention to: it is easy to produce to solve existing sintering furnace transmission crawler belt when conveying solar battery
It vibrates and contact area is big, lead to the damaged probability for increasing solar battery contact site, be easy to produce various bad defects
The technical issues of, the present invention provides a kind of new type high temperature transmission crawler belt.
The present invention specifically uses following technical scheme to achieve the goals above:
A kind of new type high temperature transmission crawler belt, including track body, track body middle part offer several vacancy sections, vacancy section
Inside be provided at least three connect with track body upwarp mandril for carry solar battery, upwarp at the top of mandril
In sustained height and it is above track body, upwarping mandril includes the vibration damping branch that helical structure is bent by refractory metal silk
Support part, vibration reduction support portion top are respectively connected with the silica wool ball contacted with solar-electricity bottom of pond portion.
Further, the angle for upwarping the central axis of mandril and the horizontal top surface of track body is 10 ° -90 °, upwarps top
Track body 2-16mm is higher by the top of bar.
Further, the string diameter of vibration reduction support portion bottom end is 0.8-1.8mm, and the string diameter on vibration reduction support portion top is 0.5-
The string diameter of 1.5mm, vibration reduction support portion bottom end to top are gradually reduced.
Further, every layer of annular diameter of vibration reduction support portion helical structure is equal.
Further, the bottom annular diameter of vibration reduction support portion helical structure successively reduces to its top layer annular diameter.
Further, the mandril quantity that upwarps being arranged on the inside of each vacancy section is 3-4.
Further, track body is integrated braiding structure, and the material of track body is titanizing nichrome or stainless
Steel titanium plated alloy.
Beneficial effects of the present invention are as follows:
1, several vacancy sections are opened up along its conveying direction in track body first, and is connected in vacancy section inside edge
Few three upwarp mandril, and solar battery is placed on and is upwarped on mandril, and solar battery is mobile with track body, to keep away
Exempt from solar battery directly to contact with track body, while the vibration reduction support portion for upwarping the helically type structure in mandril is by resistance to
It made of high temperature wires bending, can use under high temperature environment, and there is certain elasticity to keep away to reach damping effect
Exempt to hit because of vibration during transportation and generate defect, while the silica wool ball by upwarping in mandril connects with solar battery
Touching, not only increases the frictional force with solar battery, prevents its from generating sliding, also substantially reduces and to connect with solar battery
Contacting surface product, to utmostly reduce the damaged probability of solar battery contact site, defects of solar battery obtained is seldom,
Substantially increase qualification rate.
2, the angle for upwarping the central axis of mandril and the horizontal top surface of track body is 10 ° -90 °, that is, upwarps mandril
Inclination angle is 10 ° -90 °, is able to satisfy requirement, upwarps and is higher by track body 2-16mm at the top of mandril, guarantees solar battery
Under the premise of will not contacting with track body, and keep solar battery not too large at a distance from track body, prevents solar energy
Battery ejection track body, dimensional structure setting are reasonable.
3, the string diameter of vibration reduction support portion bottom end is 0.8-1.8mm, and the string diameter on vibration reduction support portion top is 0.5-1.5mm, is subtracted
The string diameter on vibration support portion bottom end to top is gradually reduced, therefore vibration reduction support portion top elasticity is greater than its bottom end elasticity, buffering knot
Structure is rationally reliable, good damping result.
4, the mandril quantity that upwarps being arranged on the inside of each vacancy section is 3-4, when setting 3 upwarps mandril, is set respectively
3 middle side edge positions corresponding in solar battery are set, one piece of solar battery can be carried, contact area is small, is arranged 4
When upwarping mandril, the corresponding 4 middle side edge positions of solar battery are separately positioned on, bearing structure is firm, and stability is good.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of new type high temperature transmission crawler belt of the present invention；
Fig. 2 is the structural schematic diagram for upwarping mandril；
Fig. 3 is another structural schematic diagram for upwarping mandril.
Appended drawing reference: 1- track body, the vacancy section 2-, 3- upwarp mandril, 3.1- vibration reduction support portion, 3.2- silica wool circle
Ball.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
As shown in Fig. 1 to 3, the present embodiment provides a kind of new type high temperatures to transmit crawler belt, including track body 1, track body 1
Middle part offers several vacancy sections 2, be provided on the inside of vacancy section 2 at least three connect with track body 1 for carry too
Positive energy battery upwarps mandril 3, upwarps 3 top of mandril in sustained height and is above track body 1, upwarping mandril 3 includes
It is bent into the vibration reduction support portion 3.1 of helical structure by refractory metal silk, is respectively connected at the top of vibration reduction support portion 3.1 and solar energy
The diameter of the silica wool ball 3.2 of battery bottom contact, silica wool ball 3.2 chooses 1.4mm.
In the present embodiment, several vacancy sections are opened up along its conveying direction in track body first, and on the inside of vacancy section
Edge connection at least three upwarps mandril, and solar battery is placed on and is upwarped on mandril, solar battery is with track body
It is mobile, so that solar battery be avoided directly to contact with track body, while upwarping the vibration damping of the helically type structure in mandril
Support portion is can to use under high temperature environment, and have certain elasticity, as made of the bending of refractory metal silk to reach
Damping effect, avoid during transportation because vibration hit generate defect, while by upwarp the silica wool ball in mandril with
Solar battery contact, not only increase the frictional force with solar battery, prevent its generate sliding, also substantially reduce with too
The contact area of positive energy battery, to utmostly reduce the damaged probability of solar battery contact site, solar energy obtained
Battery defect is seldom, substantially increases qualification rate.
Embodiment 2
As shown in Fig. 1 to 3, this implementation is on the contrary further optimized on the basis of embodiment 1, specifically, upwarps top
The angle of the horizontal top surface of the central axis and track body 1 of bar 3 is 10 ° -90 °, that is, the inclination angle for upwarping mandril 3 is 10 ° -90 °,
Here optimized angle is 30 ° -45 °, is able to satisfy requirement, upwarps and be higher by track body 2-16mm at the top of mandril 3, excellent here
Choosing height is 5-7mm, under the premise of guaranteeing that solar battery will not be contacted with track body 1, and makes solar battery and crawler belt
The distance of ontology 1 is not too large, prevents solar battery from popping up track body 1, dimensional structure setting is reasonable, vibration reduction support portion
The string diameter of 3.1 bottom ends is 0.8-1.8mm, and the string diameter on 3.1 top of vibration reduction support portion is 0.5-1.5mm, 3.1 bottom end of vibration reduction support portion
String diameter to top is gradually reduced, therefore 3.1 top elasticity of vibration reduction support portion is greater than its bottom end elasticity, and buffer structure rationally may be used
It leans on, good damping result.
Embodiment 3
As shown in Fig. 2, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, vibration reduction support portion
Every layer of annular diameter of 3.1 helical structures is equal, annular diameter 2-7mm, and preferred diameter is 4.5mm here.
Embodiment 4
As shown in figure 3, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, vibration reduction support portion
The bottom annular diameter of 3.1 helical structures successively reduces to its top layer annular diameter, and the annular of 3.1 bottom of vibration reduction support portion is straight
Diameter is 5mm, and the annular diameter of top layer is 2.5mm.
Embodiment 5
As shown in Figure 1, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, each vacancy section
It is 3-4 that 2 insides were arranged, which upwarps 3 quantity of mandril, and when setting 3 upwarps mandril 3, it is corresponding to be separately positioned on solar battery
3 middle side edge positions, one piece of solar battery can be carried, contact area is small, and setting 4 is set respectively when upwarping mandril 3
4 middle side edge positions corresponding in solar battery are set, bearing structure is firm, and stability is good.
Embodiment 6
As shown in Figure 1, the present embodiment is to be further optimized on the basis of embodiment 1, and specifically, track body 1
For integrated braiding structure, track body can be used crankshaft, straight-shaft type, flat filament type, B-shaped, chevron shaped, trapezoidal chain type and
Great wall-shaped board, which declines, sees braiding connection type, and the material of track body 1 is titanizing nichrome or stainless steel titanium plated alloy, is preferably adopted
With Cr18Ni9Ti, OCr18Ni12Mo2Ti class titanizing nichrome material.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, it is all to change with equivalent structure made by specification and accompanying drawing content of the invention, similarly
It should be included within the scope of the present invention.
Claims (7)
1. a kind of new type high temperature transmits crawler belt, including track body (1), which is characterized in that track body (1) is if middle part offers
Dry vacancy section (2), be provided on the inside of vacancy section (2) at least three connect with track body (1) be used to carry solar-electricity
Pond upwarps mandril (3), upwarps mandril (3) top in sustained height and is above track body (1), upwarps mandril (3) and wrap
Include the vibration reduction support portion (3.1) that helical structure is bent by refractory metal silk, be respectively connected at the top of vibration reduction support portion (3.1) with
The silica wool ball (3.2) of solar-electricity bottom of pond portion contact.
2. a kind of new type high temperature according to claim 1 transmits crawler belt, which is characterized in that upwarp the central axis of mandril (3)
The angle of the horizontal top surface of line and track body (1) is 10 ° -90 °, upwarps and is higher by track body (1) 2- at the top of mandril (3)
16mm。
3. a kind of new type high temperature according to claim 1 or 2 transmits crawler belt, which is characterized in that vibration reduction support portion (3.1) bottom
The string diameter at end is 0.8-1.8mm, and the string diameter on vibration reduction support portion (3.1) top is 0.5-1.5mm, vibration reduction support portion (3.1) bottom end
String diameter to top is gradually reduced.
4. a kind of new type high temperature according to claim 3 transmits crawler belt, which is characterized in that vibration reduction support portion (3.1) spiral
Every layer of annular diameter of structure is equal.
5. a kind of new type high temperature according to claim 3 transmits crawler belt, which is characterized in that vibration reduction support portion (3.1) spiral
The bottom annular diameter of structure successively reduces to its top layer annular diameter.
6. a kind of new type high temperature according to claim 1 transmits crawler belt, which is characterized in that set on the inside of each vacancy section (2)
Mandril (3) quantity that upwarps set is 3-4.
7. a kind of new type high temperature according to claim 1 transmits crawler belt, which is characterized in that track body (1) is integration
Braiding structure, the material of track body (1) are titanizing nichrome or stainless steel titanium plated alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205669.7A CN109931785B (en) | 2019-03-18 | 2019-03-18 | Novel high-temperature conveying crawler belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205669.7A CN109931785B (en) | 2019-03-18 | 2019-03-18 | Novel high-temperature conveying crawler belt |
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| Publication Number | Publication Date |
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| CN109931785A true CN109931785A (en) | 2019-06-25 |
| CN109931785B CN109931785B (en) | 2024-03-29 |
Family
ID=66987569
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910205669.7A Active CN109931785B (en) | 2019-03-18 | 2019-03-18 | Novel high-temperature conveying crawler belt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718609A (en) * | 2019-10-24 | 2020-01-21 | 成都中建材光电材料有限公司 | Scratch-proof device for annealing of solar cell glass |
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| CN210135777U (en) * | 2019-03-18 | 2020-03-10 | 通威太阳能（成都）有限公司 | Novel high-temperature conveying crawler belt |
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2019
- 2019-03-18 CN CN201910205669.7A patent/CN109931785B/en active Active
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|---|---|---|---|---|
| JP2002203888A (en) * | 2000-10-23 | 2002-07-19 | Sharp Corp | Apparatus for manufacturing solar cell and method for manufacturing the same |
| CN103615887A (en) * | 2013-11-19 | 2014-03-05 | 奥特斯维能源（太仓）有限公司 | Caterpillar assembly of solar cell sintering furnace |
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| CN110718609A (en) * | 2019-10-24 | 2020-01-21 | 成都中建材光电材料有限公司 | Scratch-proof device for annealing of solar cell glass |
| CN110718609B (en) * | 2019-10-24 | 2021-06-29 | 成都中建材光电材料有限公司 | Scratch-proof device for annealing of solar cell glass |
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| Publication number | Publication date |
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| CN109931785B (en) | 2024-03-29 |
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