CN212077199U - Heating device of ingot furnace - Google Patents
Heating device of ingot furnace Download PDFInfo
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- CN212077199U CN212077199U CN201922379821.1U CN201922379821U CN212077199U CN 212077199 U CN212077199 U CN 212077199U CN 201922379821 U CN201922379821 U CN 201922379821U CN 212077199 U CN212077199 U CN 212077199U
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- arm
- side heating
- ingot furnace
- heating device
- heater
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Abstract
The utility model provides an ingot furnace heating device, it includes that a plurality of heaters that are the top and bottom and stack the setting and connect the installation arm of heater, the heater includes the side heating arm of a plurality of rectangular shapes, the side heating arm adopts from the bottom up by dredging to dense distribution mode. Compared with the prior art, the utility model discloses ingot furnace heating device adopts from the bottom up by dredging to dense side heating arm for radial isothermal surface is more level and smooth, and axial temperature gradient is more controllable. Moreover, the mounting arm adopts the design of multirow slotted hole, can install the not side heating arm of co-altitude in a flexible way, adjusts the power of generating heat and the position of generating heat more easily.
Description
Technical Field
The utility model relates to a photovoltaic field of making especially relates to an ingot furnace heating device.
Background
Polycrystal ingot casting is an important process in the field of photovoltaic manufacturing, and an ingot casting furnace is adopted to carry out ingot casting processing on a polysilicon material, and finally a polysilicon ingot is formed. In the ingot casting process, a heater is required to be used for continuously heating so as to melt the silicon material, and the requirement of crystal growth is met. Most of polysilicon directional growth furnaces in the current market are designed in a single power supply system control mode, a three-phase electric triangular connection method is adopted as a heater connection mode, a lateral heater design scheme is an integral snake-shaped heater, and a conventional lateral heater combination is shown in figure 1, so that the integral snake-shaped heater generates heat uniformly, the temperature gradient control in the crystal growth process is rough, and the crystal quality cannot be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heating device of an ingot furnace to improve the problem of poor heating effect in the prior art.
In order to solve the technical problem, the utility model discloses an ingot furnace heating device, it includes that a plurality of heaters that are the top and bottom and stack the setting and connect the installation arm of heater, the heater includes the side heating arm of a plurality of rectangular shapes, the side heating arm adopts from the bottom up by dredging to close distribution mode.
Furthermore, a gap is reserved between two adjacent heaters which are stacked in the vertical direction, and the heaters are in a closed square structure.
Furthermore, the heater still includes a plurality of connection arms that connect the side heating arm, every two adjacent side heating arms of heater are perpendicular setting, and link up through the connection arm.
Further, the side heating arms of two heaters disposed adjacent in the up-down direction are disposed in parallel with each other.
Furthermore, fixing holes are formed in the side heating arms and the connection arms, and the side heating arms and the connection arms are fixedly connected through the fixing holes.
Furthermore, the connection arm is provided with an inclined part and connecting parts positioned at two ends of the inclined part, and an included angle between the inclined part and the connecting parts is larger than 90 degrees.
Furthermore, the installation arm is L-shaped, and comprises a transverse arm positioned above the side heating arm and a vertical arm vertically extending downwards from one end of the transverse arm, wherein the vertical arm is provided with a plurality of slotted holes fixedly connected with the side heating arm.
Furthermore, the slotted holes are formed on the inner wall surface of the vertical arm and are distributed in a matrix; the slotted hole is correspondingly connected with the fixing hole on the side heating arm of each heater.
Furthermore, a stopping portion protruding inwards is further arranged on the inner wall surface of the vertical arm, and the stopping portion is located above the side heating arms and used for limiting the side heating arms.
Compared with the prior art, the utility model discloses ingot furnace heating device adopts from the bottom up by dredging to dense side heating arm for radial isothermal surface is more level and smooth, and axial temperature gradient is more controllable. Moreover, the mounting arm adopts the design of multirow slotted hole, can install the not side heating arm of co-altitude in a flexible way, adjusts the power of generating heat and the position of generating heat more easily.
Drawings
Fig. 1 is a schematic structural diagram of an ingot furnace heater in the prior art.
Fig. 2 is a schematic structural diagram of the heating device of the ingot furnace.
Detailed Description
Please refer to fig. 2, the utility model provides an ingot furnace heating device, it surrounds around the crucible for heat the lateral part of crucible, ingot furnace heating device includes a plurality of square heaters 10 and connects the installation arm 20 of square heater 10, wherein, a plurality of square heaters 10 stack the distribution in proper order along upper and lower direction, and leave the clearance between two adjacent heaters 10 on the upper and lower direction, both do not butt each other. Every square heater 10 includes the side heating arm 11 and the connection of four rectangular shapes side heating arm 11 links up arm 12, two liang of side heating arms 11 of four rectangular shapes are parallel to each other, constitute a square structure, and two adjacent side heating arms 11 are perpendicular settings, and pass through link up arm 12 links up, thereby makes side heater 10 forms a square closed loop, all be equipped with fixed orifices 13 on side heating arm 11 and the linking arm 12, side heating arm 11 with link up arm 12 and pass through fixed orifices 13 carries out fixed connection, link up arm 12 and be equipped with an rake 14 and be located the connecting portion 15 at rake 14 both ends, rake 14 with contained angle between the connecting portion 15 is greater than 90 degrees.
In addition, the side heating arms 11 of two square heaters 10 which are adjacently arranged in the up-down direction are arranged in parallel and extend along the horizontal direction, and the connecting arms 12 of each heater 10 are also arranged in one-to-one correspondence in the up-down direction, so that the square heaters 10 form a fence-shaped structure around the crucible, and a plurality of side heating arms 11 which are distributed from top to bottom and are arranged in parallel are distributed on each side surface of the crucible.
The mounting arm 20 is L-shaped, and includes a transverse arm 21 located above the side heating arm 11 and a vertical arm 22 extending downward and vertically from one end of the transverse arm 21, the transverse arm 21 and the vertical arm 22 are an integral connecting structure, the vertical arm 22 is provided with a plurality of slotted holes 23 fixedly connected with the side heating arm 11, the slotted holes 23 are formed on the inner wall surface of the vertical arm 22, the slotted holes 23 are distributed in a matrix manner, that is, the inner wall surface of the vertical arm 22 is distributed with a plurality of rows of horizontally extending slotted holes 23, each row of slotted holes 23 is correspondingly connected with the fixing holes 13 on the side heating arm 11 of each heater 10, and each heater 10 can flexibly adjust the mounting position in the up-down direction as required. The top surface of the transverse arm 21 is provided with a positioning member 24 extending vertically upwards. In addition, a stopping portion 25 protruding inwards is further arranged on the inner wall surface of the vertical arm 22, and the stopping portion 25 is located above the plurality of side heating arms 11 and used for limiting the side heating arms 11 to a certain extent.
In the preferred embodiment of the present invention, the length of the mounting arm 20 is 400mm-600mm, which is determined according to the radiation height of the heater 10, the temperature gradient and the corresponding thermal response intensity, and the slot 23 is located at the 2/3 portion of the lower side of the vertical arm 22. The side heating arm 11 is made of long-strip graphite or carbon-carbon composite materials, the length of the side heating arm 11 is designed to be 1000-1400 mm, the side heating arm needs to be determined according to the size of a processed silicon ingot and the required heating radiation area, the width of the side heating arm is designed to be 20-60mm, the side heating arm can be adjusted according to the growth result of the silicon ingot, the thickness of the side heating arm is designed to be 15-35mm, and the resistance value and the heating power are adjusted through different thicknesses.
Because the long brilliant process temperature gradient of polycrystalline silicon needs vertically upwards, need make heating device's lower part generate heat the power low, and the power that generates heat of upper portion is high, consequently, heating device's side heating arm 11 adopts from the bottom up by dredging to dense distribution mode for radial isothermal surface is more level and smooth, and axial temperature gradient is more controllable. Moreover, the mounting arm 20 adopts a design of multiple rows of slotted holes 23, so that the side heating arms 11 with different heights can be flexibly mounted, and the heating power and the heating position can be more easily adjusted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an ingot furnace heating device, its characterized in that stacks the heater that sets up and connects from top to bottom including a plurality of being the installation arm of heater, the heater includes the side heating arm of a plurality of rectangular shapes, the side heating arm adopts from the bottom up by the sparse distribution mode to dense.
2. The ingot furnace heating device of claim 1, wherein: a gap is reserved between every two adjacent heaters which are stacked in the vertical direction, and the heaters are of a closed square structure.
3. The ingot furnace heating device of claim 2, wherein: the heater still includes a plurality of connections the joining arm of side heating arm, every two adjacent side heating arms of heater are perpendicular setting, and pass through join the arm and link up.
4. The ingot furnace heating device of claim 3, wherein: the side heating arms of two heaters adjacently arranged in the up-down direction are arranged in parallel with each other.
5. The ingot furnace heating device of claim 4, wherein: the side heating arm and the connection arm are respectively provided with a fixing hole, and the side heating arm and the connection arm are fixedly connected through the fixing holes.
6. The ingot furnace heating device of claim 5, wherein: the connection arm is provided with an inclined part and connecting parts positioned at two ends of the inclined part, and an included angle between the inclined part and the connecting parts is larger than 90 degrees.
7. The ingot furnace heating device of claim 6, wherein: the installation arm is L-shaped, and comprises a transverse arm positioned above the side heating arm and a vertical arm extending downwards and vertically from one end of the transverse arm, wherein the vertical arm is provided with a plurality of slotted holes fixedly connected with the side heating arm.
8. The ingot furnace heating device of claim 7, wherein: the slotted holes are formed on the inner wall surface of the vertical arm and distributed in a matrix; the slotted hole is correspondingly connected with the fixing hole on the side heating arm of each heater.
9. The ingot furnace heating device of claim 8, wherein: the inner wall surface of the vertical arm is further provided with a stopping portion protruding inwards, and the stopping portion is located above the side heating arms and used for limiting the side heating arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922379821.1U CN212077199U (en) | 2019-12-26 | 2019-12-26 | Heating device of ingot furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922379821.1U CN212077199U (en) | 2019-12-26 | 2019-12-26 | Heating device of ingot furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212077199U true CN212077199U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922379821.1U Active CN212077199U (en) | 2019-12-26 | 2019-12-26 | Heating device of ingot furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212077199U (en) |
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2019
- 2019-12-26 CN CN201922379821.1U patent/CN212077199U/en active Active
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