CN202945365U - Graphite electrode used for heater of direct-pull single crystal furnace - Google Patents
Graphite electrode used for heater of direct-pull single crystal furnace Download PDFInfo
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- CN202945365U CN202945365U CN201220568343.4U CN201220568343U CN202945365U CN 202945365 U CN202945365 U CN 202945365U CN 201220568343 U CN201220568343 U CN 201220568343U CN 202945365 U CN202945365 U CN 202945365U
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- heater
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- crystal growing
- growing furnace
- notch configuration
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Abstract
The utility model discloses a graphite electrode used for a heater of a direct-pull single crystal furnace. The graphite electrode comprises an upper boss and a main body part which are connected mutually, and is also provided with an installing hole which penetrates through the top surface of the upper boss and the bottom of the main body part and is in electrical connection with the heater and an external electrode by virtue of a conductive bolt, wherein the main body part comprises an upper surface, a peripheral surface and a bottom surface which are sequentially connected; the upper surface is close to the heater and the bottom surface is opposite to the upper surface and is close to the external electrode; and a notched structure which is arranged from the peripheral surface towards the center shaft direction is arranged on the main body part. The graphite electrode disclosed by the utility model can reduce the heat which is conducted from the graphite electrode to the external electrode, reduce the heat loss of the heater and lower the production cost.
Description
Technical field
The utility model belongs to monocrystalline manufacturing technology field, relates to the heater of czochralski crystal growing furnace Graphite Electrodes.
Background technology
Photovoltaic generation is a kind of as the main energy sources of green energy resource and human kind sustainable development, day by day is subject to the attention of countries in the world and is greatly developed.Monocrystalline silicon piece is a kind of as the base mateiral of photovoltaic generation, and the market requirement is widely arranged.In the single crystal growing furnace of vertical pulling method pulling monocrystal, it is liquid with growing single-crystal that solid-state polycrystalline silicon raw material needs heat fused.The core component of heating is exactly well heater.Existing well heater is electrically connected to outer electrode by Graphite Electrodes usually, yet, Graphite Electrodes in conduction, also with a large amount of thermal energy conduction to outer electrode, like this, a large amount of thermal lossess makes the single crystal growing furnace energy consumption large, causes production cost high.
Summary of the invention
The purpose of this utility model is to provide the low heater of czochralski crystal growing furnace Graphite Electrodes of a kind of thermal losses, solves the high problem of production cost that prior art is brought greatly due to thermal losses.
The technical scheme that the utility model adopts is, a kind of heater of czochralski crystal growing furnace Graphite Electrodes, comprise interconnective convex platform and main part, also be provided with open holes, open holes run through the bottom surface of the end face of convex platform and main part and by conducting bolt to be electrically connected to well heater and outer electrode; Main part comprises upper surface, outer edge surface and the bottom surface that is connected successively, and upper surface is near well heater, and the bottom surface is relative with upper surface, and the bottom surface is near outer electrode, and main part is provided with the notch configuration of offering to central axis direction from outer edge surface.
Notch configuration is between upper surface and bottom surface, and the degree of depth of notch configuration is less than the difference of radius and the open holes radius of main part.
Notch configuration also can be near the bottom surface, and at this moment, the radius of bottom surface is the difference of the degree of depth of the radius of main part and notch configuration.
Notch configuration is around the whole circumference continuous distribution of Graphite Electrodes central axis, and its cross section is annular.
Notch configuration comprises it can being also a plurality of around the discontinuously arranged recess of the circumference of Graphite Electrodes central axis.
The cross-sectional area of convex platform is greater than the cross-sectional area of main part.
Above-mentioned Graphite Electrodes also is provided with the ventilating pit that is communicated with open holes, and ventilating pit runs through the internal surface of outer edge surface and open holes.
The utlity model has following beneficial effect, the utility model arrange on Graphite Electrodes open holes by conducting bolt to be electrically connected to well heater and outer electrode, and notch configuration is set, can reduce from the heat of Graphite Electrodes directed outwards electrode, reduce the thermal losses of well heater, reduced production cost.
Description of drawings
Fig. 1 is the utility model embodiment 1 heater of czochralski crystal growing furnace graphite electrode structure schematic diagram;
Fig. 2 is that the utility model embodiment 1 heater of czochralski crystal growing furnace connects the structural representation of well heater and outer electrode with Graphite Electrodes;
Fig. 3 is the utility model embodiment 2 heater of czochralski crystal growing furnace graphite electrode structure schematic diagram.
In figure, 10. Graphite Electrodes, 11. convex platforms, 12. main parts, 13. open holess, 14. ventilating pits, 15. notch configuration, 110. end faces, 111. joint faces, 120. outer edge surfaces, 121. bottom surfaces, 101. conducting bolts, 102. well heater pin, 103. outer electrodes.
Embodiment
Below in conjunction with accompanying drawing and a plurality of specific embodiment, the utility model is elaborated.
Embodiment 1, and referring to Fig. 1, a kind of heater of czochralski crystal growing furnace Graphite Electrodes, Graphite Electrodes 10 comprise interconnective convex platform 11 and main part 12, and the cross-sectional area of convex platform 11 is greater than the cross-sectional area of main part 12.
Convex platform 11 is roughly cylindrical.Convex platform 11 is provided with end face 110 and joint face 111.End face 110 is positioned at convex platform 11 away from main part 12 places.Joint face 111 is positioned at convex platform 11 and main part 12 junctions.
Graphite Electrodes 10 is provided with open holes 13, ventilating pit 14 and notch configuration 15.Open holes 13 runs through the bottom surface 121 of end face 110 and the main part 12 of convex platform 11.Preferably, open holes 13 is coaxial with Graphite Electrodes 10.Ventilating pit 14 is communicated in open holes 13 and Graphite Electrodes 10 external worlds, and the gas that can discharge in open holes 13 is beneficial to install.Ventilating pit 14 runs through the internal surface of outer edge surface 120 and open holes 13.Notch configuration 15 is for to offer to the central axis direction of Graphite Electrodes 10 from outer edge surface 120.Notch configuration 15 is not communicated with open holes 13, that is, the depth d of notch configuration 15 is less than radius R and open holes 13 radius r of main part 12
1Difference.In the present embodiment, notch configuration 15 is between joint face 111 and bottom surface 121.Notch configuration 15 is around the whole circumference continuous distribution of Graphite Electrodes 10 central axis, and its cross section is annular.Certainly, notch configuration 15 also can comprise a plurality of discontinuously arranged recesses of circumference around Graphite Electrodes 10 central axis.
Referring to Fig. 2, the Graphite Electrodes 10 of the present embodiment connects well heater pin 102 and outer electrode 103 by conducting bolt 101 in use.Convex platform 11 is near well heater pin 102, and the bottom surface 121 of main part 12 is near outer electrode 103.Because the main part 12 of Graphite Electrodes 10 is provided with notch configuration 15, and the heat transfer cross-sectional area at this notch configuration 15 places reduces, according to fourier heat conduction law, heat in Graphite Electrodes 10 internal delivery also reduces, thereby can reduce from the heat of Graphite Electrodes 10 directed outwards electrodes 103, reduce the thermal losses of well heater.
Embodiment 2, referring to Fig. 3, and the heater of czochralski crystal growing furnace Graphite Electrodes, the Graphite Electrodes 10 of the present embodiment is roughly the same with embodiment's 1, and its difference is, the bottom surface 121 of notch configuration 15 close main parts 12, particularly, the external diameter r of bottom surface 121
2Difference for the depth d of the radius R of main part 12 and notch configuration 15.
The Graphite Electrodes 10 of the present embodiment can reduce the heat of directed outwards electrode equally, reduces the thermal losses of well heater.
Heater of czochralski crystal growing furnace that the utility model provides is low with the Graphite Electrodes thermal losses, and long service life has solved existing Graphite Electrodes thermal losses large, the higher problem of the short production cost that brings of life-span.
Claims (7)
1. heater of czochralski crystal growing furnace Graphite Electrodes, it is characterized in that, comprise interconnective convex platform (11) and main part (12), also be provided with open holes (13), described open holes (13) run through the bottom surface (121) of the end face (110) of described convex platform (11) and main part (12) and by conducting bolt (101) to be electrically connected to well heater and outer electrode (103); Described main part (12) comprises the upper surface that is connected successively, outer edge surface (120) and bottom surface (121), described upper surface is near well heater, described bottom surface (121) is relative with described upper surface, described bottom surface (121) is near outer electrode (103), and described main part (12) is provided with the notch configuration (15) of offering to central axis direction from outer edge surface (120).
2. heater of czochralski crystal growing furnace Graphite Electrodes according to claim 1, it is characterized in that, described notch configuration (15) is positioned between described upper surface and bottom surface (121), and the degree of depth of described notch configuration (15) is less than the difference of radius and described open holes (13) radius of described main part (12).
3. heater of czochralski crystal growing furnace Graphite Electrodes according to claim 1, it is characterized in that, described notch configuration (15) is near described bottom surface (121), and the radius of described bottom surface (121) is the difference of the degree of depth of the radius of described main part (12) and described notch configuration (15).
4. according to claim 1-3 described heater of czochralski crystal growing furnace Graphite Electrodess of any one, is characterized in that, described notch configuration (15) is around the whole circumference continuous distribution of Graphite Electrodes (10) central axis, and its cross section is annular.
5. according to claim 1-3 described heater of czochralski crystal growing furnace Graphite Electrodess of any one, is characterized in that, described notch configuration (15) comprises a plurality of discontinuously arranged recesses of circumference around described Graphite Electrodes (10) central axis.
6. according to claim 1-3 described heater of czochralski crystal growing furnace Graphite Electrodess of any one, is characterized in that, the cross-sectional area of described convex platform (11) is greater than the cross-sectional area of described main part (12).
7. according to claim 1-3 described heater of czochralski crystal growing furnace Graphite Electrodess of any one, it is characterized in that, also be provided with the ventilating pit (14) that is communicated with described open holes (13), described ventilating pit (14) runs through the internal surface of described outer edge surface (120) and described open holes (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220568343.4U CN202945365U (en) | 2012-10-31 | 2012-10-31 | Graphite electrode used for heater of direct-pull single crystal furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220568343.4U CN202945365U (en) | 2012-10-31 | 2012-10-31 | Graphite electrode used for heater of direct-pull single crystal furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945365U true CN202945365U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220568343.4U Expired - Fee Related CN202945365U (en) | 2012-10-31 | 2012-10-31 | Graphite electrode used for heater of direct-pull single crystal furnace |
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| CN (1) | CN202945365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185696A1 (en) * | 2022-03-29 | 2023-10-05 | Tcl中环新能源科技股份有限公司 | Specially-shaped graphite electrode column for reducing power consumption |
-
2012
- 2012-10-31 CN CN201220568343.4U patent/CN202945365U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185696A1 (en) * | 2022-03-29 | 2023-10-05 | Tcl中环新能源科技股份有限公司 | Specially-shaped graphite electrode column for reducing power consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710100 Changan District, Shaanxi Province, aerospace Road, No. 388, No. Co-patentee after: WUXI LONGI SILICON MATERIALS Corp. Patentee after: LONGI GREEN ENERGY TECHNOLOGY Co.,Ltd. Co-patentee after: NINGXIA LONGI SILICON MATERIALS Co.,Ltd. Co-patentee after: YINCHUAN LONGI SILICON MATERIALS Co.,Ltd. Address before: 710100 Changan District, Shaanxi Province, aerospace Road, No. 388, No. Co-patentee before: WUXI LONGI SILICON MATERIALS Corp. Patentee before: XI'AN LONGI SILICON MATERIALS Corp. Co-patentee before: NINGXIA LONGI SILICON MATERIALS Co.,Ltd. Co-patentee before: YINCHUAN LONGI SILICON MATERIALS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210929 Address after: 710199 no.388 Hangtian Middle Road, Chang'an District, Xi'an City, Shaanxi Province Patentee after: LONGI GREEN ENERGY TECHNOLOGY Co.,Ltd. Address before: 710100 No. 388, middle route, Xi'an, Shaanxi, Changan District Patentee before: LONGI GREEN ENERGY TECHNOLOGY Co.,Ltd. Patentee before: WUXI LONGI SILICON MATERIALS Corp. Patentee before: NINGXIA LONGI SILICON MATERIALS Co.,Ltd. Patentee before: YINCHUAN LONGI SILICON MATERIALS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20211031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |