CN215366060U

CN215366060U - double-UV type bottom heater for improving survival rate of large-size straight-pull single crystal pulling and releasing

Info

Publication number: CN215366060U
Application number: CN202120733714.9U
Authority: CN
Inventors: 杨昊; 杨羽
Original assignee: Hongyuan New Materials Baotou Co ltd
Current assignee: Hongyuan New Materials Baotou Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-31
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a double-UV type bottom heater for improving the pulling and releasing survival rate of large-size straight-pull single crystals, and relates to the technical field of graphite materials. The UV type bottom heater comprises a UV type bottom heater body, wherein the UV type bottom heater body consists of eight second heating blocks, four first heating blocks and two boss foot plates, two second heating blocks are fixed between every two adjacent first heating blocks, the boss foot plates are fixed at the bottoms of the two opposite first heating blocks, connecting plates are fixed on the outer sides of the two opposite first heating blocks, a fixing block is fixed at one end, far away from the first heating blocks, of each connecting plate through bolts, and a placing cavity is formed in the inner portion of one end of each fixing block. According to the utility model, through the matching of the UV type bottom heater main body, the clamping block and the supporting plate, the device has faster heating efficiency when in use, can shorten the material melting and charging time, and can be convenient for mounting and dismounting the UV type bottom heater main body.

Description

double-UV type bottom heater for improving survival rate of large-size straight-pull single crystal pulling and releasing

Technical Field

The utility model belongs to the technical field of graphite materials, and particularly relates to a double-UV type bottom heater for improving the survival rate of pulling and placing large-size straight-pull single crystals.

Background

Along with the increasing demand of photovoltaic market to jumbo size single crystal stick, each photovoltaic enterprise began to march and uses 210mm silicon chip and subassembly size standardization as new starting point, lead the new era of global low carbon energy, the straight pull single crystal need heat through end heater when producing, the calorific capacity of providing of current end heater when using is lower, can not guarantee the temperature of heat field bottom, draw and put the survival rate lower, quartz crucible and silicon liquid's reaction time is longer, life is shorter, and the fixed of end heater is not convenient for dismantle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-UV type bottom heater for improving the pulling and releasing survival rate of large-size straight-pull single crystals, which solves the existing problems: the heat productivity that the current end heater provided when using is lower, can not guarantee the temperature of thermal field bottom, draws puts the survival rate lower, and quartz crucible is longer with the reaction time of silicon liquid, and life is shorter to the fixed be not convenient for dismantle of end heater.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a two UV type end heaters for promoting jumbo size czochralski crystal draws puts survival rate of putting, including UV type end heater main part, UV type end heater main part comprises eight second heating blocks, four first heating blocks and two boss baseboards.

Furthermore, two second heating blocks are fixed between every two adjacent first heating blocks, and boss foot plates are fixed at the bottoms of the two opposite first heating blocks.

Furthermore, the outer sides of the two opposite first heating blocks are respectively fixed with a connecting plate, and one end of each connecting plate, which is far away from the first heating block, is fixed with a fixing block through a bolt.

Furthermore, each first heating block's inside has all been seted up oblique U type groove, the biggest clearance between the oblique U type groove is 250 mm.

Furthermore, each second heating block is internally provided with a V-shaped groove, and the maximum gap between the V-shaped grooves is 100 mm.

Furthermore, the diameter of each boss foot plate is 80mm, and the thickness of each boss foot plate is 40 mm.

Further, the inside of fixed block one end has been seted up and has been placed the chamber, the equal sliding connection in both sides of placing the intracavity portion has the backup pad, two be fixed with the spring between the backup pad, two one side that the spring was kept away from to the backup pad all is fixed with the fixture block, the fixture block is kept away from the one end of backup pad and has been seted up the inclined plane, just fixture block and fixed block sliding connection.

Further, the outer side of the UV type base heater body is coated with a perchloroethylene coating.

Furthermore, a sliding groove is formed in the fixing block, and the fixing block is connected with the clamping block in a sliding mode through the sliding groove.

The utility model has the following beneficial effects:

according to the utility model, through the matching of the UV type bottom heater main body, the clamping block and the supporting plate, the device can have faster heating efficiency when in use, can shorten the material melting and charging time, and can be convenient for mounting and dismounting the UV type bottom heater main body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a bottom view of the present invention in its entirety;

FIG. 3 is a schematic structural view of a UV type bottom heater body according to the present invention;

fig. 4 is a schematic view of the internal structure of the fixing block of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a UV type bottom heater body; 2. a connecting plate; 3. a fixed block; 4. a first heat block; 5. a second heat block; 6. a boss foot plate; 7. a clamping block; 8. a support plate; 9. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model relates to a double-UV type bottom heater for increasing the survival rate of pulling and releasing large-size czochralski single crystals, which comprises a UV type bottom heater main body 1, wherein the outer side of the UV type bottom heater main body 1 is coated with a perchloroethylene coating, the UV type bottom heater main body 1 consists of eight second heating blocks 5, four first heating blocks 4 and two boss foot plates 6, an inclined U-shaped groove is formed inside each first heating block 4, the maximum gap between the inclined U-shaped grooves is 250mm, a V-shaped groove is formed inside each second heating block 5, the maximum gap between the V-shaped grooves is 100mm, the diameter of each boss foot plate 6 is 80mm, the thickness of each boss foot plate 6 is 40mm, two second heating blocks 5 are fixed between every two adjacent first heating blocks 4, wherein the bottom parts of two opposite first heating blocks 4 are fixed with the boss foot plates 6, the outer sides of two opposite first heating blocks 4 are both fixed with connecting plates 2, and one end of each connecting plate 2, which is far away from the first heating block 4, is fixed with a fixing block 3 through a bolt;

the inside of 3 one ends of fixed block has been seted up and has been placed the chamber, the equal sliding connection in both sides of placing the intracavity portion has backup pad 8, be fixed with spring 9 between two backup pad 8, one side that spring 9 was kept away from to two backup pad 8 all is fixed with fixture block 7, the inclined plane has been seted up to the one end that backup pad 8 was kept away from to fixture block 7, and

fixture block

7 and 3 sliding connection of fixed block, the spout has been seted up to the inside of fixed block 3, fixed block 3 passes through spout sliding connection with fixture block 7, make the device can possess faster heating efficiency when using, can make the melt, shorten when feeding, and can be convenient for install and dismantle heater main part 1 at the bottom of the UV type.

One specific application of this embodiment is: when the device is used, the fixing block 3 is clamped at a position needing to be fixed, then the fixing block 3 is pushed, the fixing block 3 drives the clamping block 7 to move, then the clamping block 7 moves inwards through the inclined plane of the clamping block 7, the clamping block 7 moves to drive the supporting plate 8 to move, the supporting plate 8 moves to extrude the spring 9, then the fixing block 3 is pushed to a certain distance, the spring 9 rebounds to drive the clamping block 7 to move outwards through the supporting plate 8, the fixing block 3 can be fixed, then the fixing block 3 and the connecting plate 2 are fixed through the bolt, when the UV type bottom heater main body 1 is used, the device can effectively slow down the corrosion condition when in use through the perchloroethylene coating coated outside, the service life is prolonged, and the device has larger heating efficiency when in use through the shape of the UV type bottom heater main body 1, can make melt, reinforced man-hour shorten, make the holistic heated time of crucible short, short with the reaction period of silicon liquid, the oxygen content that produces is also still less, is favorable to reducing oxygen content, promotes the quality of crystal pulling.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heater at bottom of two UV types for promoting jumbo size czochralski crystal draws puts survival rate, its characterized in that: the UV type bottom heater comprises a UV type bottom heater body (1), wherein the UV type bottom heater body (1) is composed of eight second heating blocks (5), four first heating blocks (4) and two boss foot plates (6).

2. The double UV type bottom heater for increasing the survival rate of pulling and releasing a large-sized czochralski single crystal according to claim 1, wherein: two second heating blocks (5) are fixed between every two adjacent first heating blocks (4), and boss foot plates (6) are fixed at the bottoms of the two opposite first heating blocks (4).

3. The double UV type bottom heater for increasing the survival rate of pulling and releasing a large-sized czochralski single crystal according to claim 2, wherein: the outer sides of the two opposite first heating blocks (4) are respectively fixed with a connecting plate (2), and one end, far away from the first heating blocks (4), of each connecting plate (2) is fixed with a fixing block (3) through a bolt.

4. The double UV type bottom heater for improving the pulling and releasing survival rate of the large-size Czochralski single crystal as claimed in claim 1, wherein each first heating block (4) is internally provided with an inclined U-shaped groove, and the maximum gap between the inclined U-shaped grooves is 250 mm.

5. The double UV type bottom heater for improving the pulling and releasing survival rate of the large-size Czochralski single crystal as claimed in claim 1, wherein each of the second heat blocks (5) is internally provided with a V-shaped groove, and the maximum gap between the V-shaped grooves is 100 mm.

6. The double UV type bottom heater for improving the survival rate of pulling and placing large-size Czochralski single crystal according to claim 1, wherein each of the boss foot plates (6) has a diameter of 80mm, and each of the boss foot plates (6) has a thickness of 40 mm.

7. The double UV type bottom heater for increasing the survival rate of pulling and releasing a large-sized Czochralski single crystal as set forth in claim 3, wherein: the inside of fixed block (3) one end has been seted up and has been placed the chamber, the equal sliding connection in both sides of placing the intracavity portion has backup pad (8), two be fixed with spring (9) between backup pad (8), two one side that spring (9) were kept away from in backup pad (8) all is fixed with fixture block (7), the inclined plane has been seted up to the one end that backup pad (8) were kept away from in fixture block (7), just fixture block (7) and fixed block (3) sliding connection.

8. The double UV type bottom heater for increasing the survival rate of pulling and releasing a large-sized czochralski single crystal according to claim 1, wherein: the outer side of the UV type bottom heater main body (1) is coated with a perchloroethylene coating.

9. The double UV type bottom heater for increasing the survival rate of pulling and releasing a large-sized czochralski single crystal according to claim 7, wherein: the inside of fixed block (3) has seted up the spout, fixed block (3) pass through spout sliding connection with fixture block (7).