WO2023185696A1 - 一种降低功耗的异型石墨电极柱 - Google Patents

一种降低功耗的异型石墨电极柱 Download PDF

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Publication number
WO2023185696A1
WO2023185696A1 PCT/CN2023/083883 CN2023083883W WO2023185696A1 WO 2023185696 A1 WO2023185696 A1 WO 2023185696A1 CN 2023083883 W CN2023083883 W CN 2023083883W WO 2023185696 A1 WO2023185696 A1 WO 2023185696A1
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electrode
special
electrode column
shaped
diameter
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PCT/CN2023/083883
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English (en)
French (fr)
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郭志荣
许建
王建平
安磊
刘振宇
李晓东
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Tcl中环新能源科技股份有限公司
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Publication of WO2023185696A1 publication Critical patent/WO2023185696A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
    • C30B15/14—Heating of the melt or the crystallised materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/14—Arrangements or methods for connecting successive electrode sections

Definitions

  • the graphite electrode column used in the Czochralski single crystal furnace of the present application relates in particular to a special-shaped graphite electrode column that reduces power consumption.
  • the temperature in the single crystal furnace needs to be heated to about 1450°C, and continuous heating is required, and conductive heating is required.
  • the graphite electrode column for Czochralski single crystal furnace is one of the main components of the Czochralski single crystal furnace. Its function is to connect the copper electrode and the graphite heater to conduct electricity. At present, in the Czochralski single crystal thermal field, due to the high working environment temperature, the Czochralski single crystal furnace is made of graphite electrode columns.
  • the graphite material has strong thermal conductivity and can easily export part of the heat energy in the thermal field, resulting in a waste of electrical energy.
  • the problem to be solved by this application is to provide a special-shaped graphite electrode column that reduces power consumption. It effectively solves the problem that due to the high working environment temperature, Czochralski single crystal furnaces are made of graphite electrode columns.
  • the graphite material has strong thermal conductivity and is easy to cause the thermal field to The heat energy in the middle part is exported, causing a waste of electrical energy.
  • a special-shaped graphite electrode column that reduces power consumption including:
  • a first electrode post, a first connection hole is provided in the first electrode post, which can be connected to the heater electrode pin;
  • a second connection hole is provided in the second electrode post, and can be connected to a power supply device
  • a special-shaped electrode column disposed between the first electrode column and the second electrode column, and connecting the first electrode column and the second electrode column, wherein the minimum cross-sectional area of the special-shaped electrode column is smaller than the minimum cross-sectional area of the first electrode column, and the minimum cross-sectional area of the special-shaped electrode column is smaller than the minimum cross-sectional area of the second electrode column.
  • the shape of the special-shaped electrode post is cylindrical, and the diameter of the special-shaped electrode post is smaller than the The diameter of the first electrode pillar, and the diameter of the special-shaped electrode pillar is smaller than the diameter of the second electrode pillar.
  • a first supplementary connection hole mated with the first connection hole is also provided at the position where the special-shaped electrode post contacts the first electrode post for connecting the heater electrode pin.
  • a second supplementary connection hole matching the second connection hole is provided at the position where the special-shaped electrode post contacts the second electrode post for connecting to the power supply device.
  • the shape of the special-shaped electrode post is cylindrical, the diameter of the special-shaped electrode post is smaller than the diameter of the first electrode post, and the diameter of the special-shaped electrode post is smaller than the diameter of the second electrode post. diameter, and a through hole is opened in the middle of the special-shaped electrode post.
  • the special-shaped electrode pillar, the first electrode pillar and the second electrode pillar have an integrated structure.
  • the special-shaped electrode pillar, the first electrode pillar and the second electrode pillar are separate structures.
  • the special-shaped electrode pillar is provided with an exhaust hole, one side of the exhaust hole is connected to the through hole, and the other side of the exhaust hole is connected to the outside of the graphite electrode pillar.
  • the diameter of the through hole is smaller than the diameter of the first connection hole, the diameter of the through hole is smaller than the diameter of the second connection hole, and the through hole passes through the first connection hole. and the second connection hole.
  • the first connection hole, the through hole and the second connection hole are coaxially arranged.
  • the minimum width of the special-shaped electrode pillar is greater than or equal to 60 mm.
  • the diameter of the electrode pillar is currently in the range of 80nm-100mm, and the conductive heat is much greater than the self-heating. Reducing energy loss is mainly optimized from the heat transfer.
  • the smaller the minimum cross-sectional area the smaller the diameter
  • the more conducive to the control of conductive heat the smaller the minimum cross-sectional area (the smaller the diameter), the more conducive to the control of conductive heat.
  • Special-shaped electrode posts are used to reduce the minimum cross-sectional area of the graphite electrode posts, which can effectively reduce the diameter and reduce self-heating.
  • the power consumption can be reduced by 1KW-2KW, and the consumption of materials can be reduced at the same time, providing a strong guarantee for energy saving and consumption reduction.
  • Figure 1 is a schematic structural diagram of a special-shaped graphite electrode column that reduces power consumption according to an embodiment of the present application
  • Figure 2 is a schematic structural diagram of a special-shaped graphite electrode column that reduces power consumption according to another embodiment of the present application
  • a special-shaped graphite electrode column that reduces power consumption including:
  • the first electrode column 1 has a first connection hole 4 in the first electrode column 1, which can be connected to the heater electrode pin; the first connection hole 4 is opened at the top surface position where the first electrode column 1 contacts the heater electrode pin. , the depth can penetrate the first electrode column 1, and the size can match the connector on the heater electrode foot, usually a bolt, so the internal surface of the first connection hole 4 is generally provided with internal threads, and is connected with the heater electrode foot. The surface threads of the bolt match;
  • the second electrode column 3 has a second connection hole 5 in the second electrode column 3, which can be connected to the power supply device; the second connection hole 5 is opened at the bottom surface position of the second electrode column 3 in contact with the power supply device, and the depth can penetrate
  • the size of the second electrode post 3 can match the connector on the power supply device, which is usually a bolt. Therefore, the inner surface of the second connection hole 5 is generally provided with internal threads and matches the threads on the surface of the bolt on the power supply device;
  • the special-shaped electrode post 2 is arranged between the first electrode post 1 and the second electrode post 3 and connects the first electrode post 1 and the second electrode post 3.
  • the top of the special-shaped electrode post 2 is connected to the bottom of the first electrode post 1.
  • the bottom of the special-shaped electrode post 2 is connected to the top of the second electrode post 3.
  • the shape of the special-shaped electrode post 2 is uncertain and can be rectangular, cylindrical or other shapes. It only needs to be connected to the first electrode post 1 and the second electrode post 3. It only needs to be able to conduct electric energy smoothly.
  • the special-shaped electrode post 2, the first electrode post 1 and the second electrode post 3 can be integrated, or they can be set up separately, and are connected by bolts in the middle. It is preferably an integrated design.
  • the special-shaped electrode column 2 there is also an exhaust hole on one side, and one end of the exhaust hole is connected to the outside of the graphite electrode column to prevent the graphite electrode column from easily bursting during the process of thermal expansion and contraction, causing damage to the entire electrode column, and increasing production. cost.
  • the maximum width of the special-shaped electrode post 2 is smaller than the minimum width of the first electrode post 1 , and the maximum width of the special-shaped electrode post 2 is smaller than the minimum width of the second electrode post 3 . That is, the special-shaped electrode column 2 can provide the smallest cross-sectional area of the entire graphite electrode column, because the graphite electrode column mainly loses energy through conductive heat and self-heating.
  • the conductive heat is proportional to the diameter
  • the self-heating is proportional to the diameter. Inversely proportional to the diameter, the specific formula is:
  • ⁇ 1 in the formula selects the smallest diameter in the entire graphite electrode column. Since the diameter of the current electrode column is in the range of 80nm-100mm, conductive heat is much greater than self-heating, so reducing energy loss is mainly optimized from conductive heat. On the premise of meeting the support strength, the smaller the minimum cross-sectional area (the smaller the diameter), the more conducive to the control of conductive heat. However, the minimum diameter also has a limit. In current technology, the minimum diameter that can be tolerated is 60mm.
  • the entire graphite electrode column forms an I-shaped electrode.
  • the I-shaped electrode post can effectively reduce the diameter and reduce self-heating. Through experimental verification, compared with conventional electrode columns, the power consumption can be reduced by 1KW-2KW; at the same time, the consumption of materials can be reduced, providing a strong guarantee for energy saving and consumption reduction.
  • a first connection hole 4 is provided in the first electrode post 1, which can connect the heater electrode pin; the first electrode post 1 is cylindrical in shape, and is provided with a heater electrode pin. Matching shoulder; the first connection hole 4 is opened at the top surface position where the first electrode column 1 is in contact with the heater electrode foot, the depth penetrates the first electrode column 1, and the size matches the bolt on the heater electrode foot.
  • the first The internal surface of the connecting hole 4 is generally provided with internal threads and matches the surface threads of the bolts on the heater electrode feet;
  • the second electrode column 3 has a second connection hole 5 in the second electrode column 3, which can be connected to a power supply device; the second electrode column 3 is cylindrical in shape, and its diameter is consistent with the main diameter of the first electrode column 1 (non-stationary). Shoulder diameter); the second connection hole 5 is opened at the bottom surface position where the second electrode column 3 contacts the power supply device, and penetrates deeply through the second electrode column 3. The size matches the bolts on the power supply device.
  • the inner surface of the second connection hole 5 It is provided with internal threads and matches the surface threads of the bolts on the power supply device;
  • the shape of the special-shaped electrode post 2 is cylindrical, the diameter of the special-shaped electrode post 2 is smaller than the first electrode post 1, and the diameter of the special-shaped electrode post 2 is smaller than the diameter of the second electrode post 3, ensuring that the cross-sectional area of the special-shaped electrode post 2 is smaller than the first electrode post 1.
  • the cross-sectional area of one electrode post 1, and the cross-sectional area of the special-shaped electrode post 2 is smaller than the cross-sectional area of the second electrode post 3, so that the overall graphite electrode post is in an I-shape, which can not only reduce power consumption, but also meet the requirements of support.
  • Strength the diameter of the special-shaped electrode column 2 is set to 70mm;
  • the position where the special-shaped electrode post 2 contacts the first electrode post 1 is also provided with a first supplementary connection hole 6 that matches the first connection hole 4 and is used to connect the heater electrode pin.
  • the first supplementary connection hole 6 matches the first connection The size of hole 4 and set coaxially, use To accommodate the bolts connected to the heater motor legs;
  • the position where the special-shaped electrode post 2 contacts the second electrode post 3 is also provided with a second supplementary connection hole 7 that matches the second connection hole 5 for connecting the power supply device.
  • the second supplementary connection hole 7 matches the second connection hole 5 size and coaxially arranged to accommodate the bolts connected to the power supply device.
  • a first connection hole 4 is provided in the first electrode column 1, which can connect the heater electrode pin; the first electrode column 1 is cylindrical in shape and is provided with a heater electrode pin. Matching shoulder; the first connection hole 4 is opened at the top surface position where the first electrode column 1 is in contact with the heater electrode foot, the depth penetrates the first electrode column 1, and the size matches the bolt on the heater electrode foot.
  • the first The internal surface of the connecting hole 4 is generally provided with internal threads and matches the surface threads of the bolts on the heater electrode feet;
  • the second electrode column 3 has a second connection hole 5 in the second electrode column 3, which can be connected to a power supply device; the second electrode column 3 is cylindrical in shape, and its diameter is consistent with the main diameter of the first electrode column 1 (non-stationary). Shoulder diameter); the second connection hole 5 is opened at the bottom surface position where the second electrode column 3 contacts the power supply device, and penetrates deeply through the second electrode column 3. The size matches the bolts on the power supply device.
  • the inner surface of the second connection hole 5 It is provided with internal threads and matches the surface threads of the bolts on the power supply device;
  • the shape of the special-shaped electrode post 2 is cylindrical, the diameter of the special-shaped electrode post 2 is smaller than the diameter of the first electrode post 1, and the diameter of the special-shaped electrode post 2 is smaller than the diameter of the second electrode post 3, and is opened in the middle of the special-shaped electrode post 2 There is a through hole 8, in which the diameter of the special-shaped electrode post 2 is 65 mm.
  • the diameter of the through hole 8 is smaller than the diameter of the first connection hole 4 , and the diameter of the through hole 8 is smaller than the diameter of the second connection hole 5 .
  • the through hole 8 penetrates the special-shaped electrode column 2 and penetrates the first connection hole 4 and the second connection hole 5 .
  • the diameter of the through hole 8 in this embodiment is half the diameter of the first connection hole 4. Since the connecting bolts of the heater electrode feet are smaller than the connecting bolts of the power supply device, the diameter of the first connecting hole 4 is smaller than the second connecting hole. 5 in diameter.
  • the first connection hole 4, the through hole 8 and the second connection hole 5 are coaxially arranged, that is, the axes of the first connection hole 4, the through hole 8 and the second connection hole 5 are the same.
  • the setting of the through hole 8 will not reduce the support strength of the graphite electrode column, but can also reduce the consumables of the graphite electrode column, and at the same time reduce the conductive heat of the graphite electrode column, solving the problem of high energy loss in the existing technology.

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Abstract

本申请提供一种降低功耗的异型石墨电极柱，包括：第一电极柱；第二电极柱；异型电极柱，连接第一电极柱与第二电极柱，其中，异型电极柱的最小宽度小于第一电极柱和第二电极柱的最小宽度。本申请所提供的异型石墨电极柱在满足支撑强度的前提下，采用异型电极柱来减小石墨电极柱的最小截面积，可有效缩小直径，减少自发热。

Description

一种降低功耗的异型石墨电极柱
本申请要求于2022年03月29日提交中国专利局、申请号为202220701462.6、发明名称为“一种降低功耗的异型石墨电极柱”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请直拉单晶炉使用的石墨电极柱，尤其是涉及一种降低功耗的异型石墨电极柱。
背景技术
在单晶硅在熔化过程中，需要单晶炉内的温度加热至1450℃左右，并且需要持续不断的加热，需要进行导电加热。
直拉单晶炉用石墨电极柱属于直拉单晶炉的主要部件之一，其作用是连接铜电极与石墨加热器，起导电作用。目前，在直拉单晶热场中，由于工作环境温度很高，直拉单晶炉用石墨电极柱制作，石墨材质导热性能强，容易将热场中部分热能导出，造成电能的浪费。
另外单纯缩小现有石墨电极柱的直径，理论上可降低热能的损失，但直径缩小到一定范围内，受长期高温影响，容易烧细，缩小使用寿命，尤其对于灌注石英砂的电极柱，受石英砂腐蚀，使用寿命大大缩短，一般的极限最小直径值为60mm。
技术问题
本申请要解决的问题是提供一种降低功耗的异型石墨电极柱，有效的解决由于工作环境温度很高，直拉单晶炉用石墨电极柱制作，石墨材质导热性能强，容易将热场中部分热能导出，造成电能的浪费的问题。
技术解决方案
为解决上述技术问题，本申请采用的技术方案是：一种降低功耗的异型石墨电极柱，包括：
第一电极柱，所述第一电极柱内开设有第一连接孔，可连接加热器电极脚；
第二电极柱，所述第二电极柱内开设有第二连接孔，可连接供电装置；
异型电极柱，设置在所述第一电极柱和所述第二电极柱之间，并连接所述第一电极柱与所述第二电极柱，其中，所述异型电极柱的最小横截面积小于所述第一电极柱的最小横截面积，且所述异型电极柱的最小横截面积小于所述第二电极柱的最小横截面积。
在一些实施例中，所述异型电极柱的形状为圆柱形，所述异型电极柱的直径小于所述 第一电极柱的直径，且所述异型电极柱的直径小于所述第二电极柱的直径。
在一些实施例中，所述异型电极柱与所述第一电极柱接触的位置处还设有与所述第一连接孔配合的第一补充连接孔，用于连接所述加热器电极脚。
在一些实施例中，所述异型电极柱与所述第二电极柱接触的位置处还设有与所述第二连接孔配合的第二补充连接孔，用于连接所述供电装置。
在一些实施例中，所述异型电极柱的形状为圆柱形，所述异型电极柱的直径小于所述第一电极柱的直径，且所述异型电极柱的直径小于所述第二电极柱的直径，且在所述异型电极柱的中间开设有一通孔。
在一些实施例中，所述异型电极柱与所述第一电极柱和所述第二电极柱为一体结构。
在一些实施例中，所述异型电极柱与所述第一电极柱和所述第二电极柱为分体结构。
在一些实施例中，所述异型电极柱上开设有排气孔，所述排气孔的一侧连通所述通孔，所述排气孔的另一侧连通石墨电极柱的外部。
在一些实施例中，所述通孔的直径小于所述第一连接孔的直径，所述通孔的直径小于所述第二连接孔的直径，并且所述通孔贯通所述第一连接孔和所述第二连接孔。
在一些实施例中，所述第一连接孔、所述通孔与所述第二连接孔同轴设置。
在一些实施例中，所述异型电极柱的最小宽度大于等于60mm。
有益效果
采用上述技术方案，目前电极柱直径在80nm-100mm范围内，传导热远远大于自发热，减少能量损耗主要从传递热进行优化。在满足支撑强度的前提下，最小截面积越小(直径越小)，越有利于传导热的控制。采用异型电极柱来减小石墨电极柱的最小截面积，可有效缩小直径，减少自发热。
通过实验验证，与常规电极柱相比，可降低功耗1KW-2KW，同时可降低材料的消耗，为节能降耗提供有力的保障。
附图说明
图1是本申请实施例一种降低功耗的异型石墨电极柱结构示意图；
图2是本申请另一实施例一种降低功耗的异型石墨电极柱结构示意图；
图中：
1、第一电极柱             2、异型电极柱          3、第二电极柱
4、第一连接孔             5、第二连接孔          6、第一补充连接孔
7、第二补充连接孔         8、通孔               9、排气孔。
具体实施方式
下面结合实施例和附图对本申请作进一步说明：
在本申请实施例的描述中，需要理解的是，术语“顶部”、“底部”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“设置”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本申请中的具体含义。
一种降低功耗的异型石墨电极柱，包括：
第一电极柱1，第一电极柱1内开设有第一连接孔4，可连接加热器电极脚；第一连接孔4开设在第一电极柱1与加热器电极脚接触的顶部表面位置处，深度可贯穿第一电极柱1，大小与加热器电极脚上的连接件匹配即可，一般为螺栓，所以第一连接孔4的内部表面一般设置有内螺纹，并与加热器电极脚上的螺栓表面螺纹匹配；
第二电极柱3，第二电极柱3内开设有第二连接孔5，可连接供电装置；第二连接孔5开设在第二电极柱3与供电装置接触的底部表面位置处，深度可贯穿第二电极柱3，大小与供电装置上的连接件匹配即可，一般为螺栓，所以第二连接孔5内表面一般设置有内螺纹，并与供电装置上的螺栓表面螺纹匹配；
异型电极柱2，设置在第一电极柱1和第二电极柱3之间，并连接第一电极柱1与第二电极柱3，异型电极柱2的顶部连接第一电极柱1的底部，异型电极柱2的底部与第二电极柱3的顶部连接，异型电极柱2的形状不定，可以为矩形、圆柱形等其他形状，只需与第一电极柱1和第二电极柱3连接并能顺利传导电能即可，异型电极柱2与第一电极柱1和第二电极柱3可以为一体的，也可以分开设置，中间通过螺栓进行连接，优选为一体设计。
在异型电极柱2中，在一侧还开设有一排气孔，排气孔的一端连通石墨电极柱外部，防止石墨电极柱在热胀冷缩的过程中容易爆裂导致整个电极柱损坏，增加生产成本。
其中，异型电极柱2的最大宽度小于第一电极柱1的最小宽度，且异型电极柱2的最大宽度小于第二电极柱3的最小宽度。即异型电极柱2能够提供整个石墨电极柱的最小截面积，因为石墨电极柱主要通过传导热与自发热进行能量损耗，传导热与直径成正比，自发热与 直径成反比，具体公式为：
传导热：
自发热：
公式中的φ1选取整个石墨电极柱中最小的直径，由于目前电极柱直径在80nm-100mm范围内，传导热远远大于自发热，减少能量损耗主要从传导热进行优化。在满足支撑强度的前提下，最小截面积越小(直径越小)，越有利于传导热的控制。但最小直径也有极限值，目前技术中，能够承受的最小直径为60mm。
由于异型电极柱2设置在第一电极柱1和第二电极柱3的中间，使得整个石墨电极柱形成一个工字型电极。工字型电极柱可有效缩小直径，减少自发热。通过实验验证，与常规电极柱相比，可降低功耗1KW-2KW；同时可降低材料的消耗，为节能降耗提供有力的保障。
下面列举几个具体实施例：
实施例1
参照图1，第一电极柱1，第一电极柱1内开设有第一连接孔4，可连接加热器电极脚；第一电极柱1的形状为圆柱形，并设置有一与加热器电极脚匹配的台肩；第一连接孔4开设在第一电极柱1与加热器电极脚接触的顶部表面位置处，深度贯穿第一电极柱1，大小与加热器电极脚上的螺栓匹配，第一连接孔4的内部表面一般设置有内螺纹，并与加热器电极脚上的螺栓表面螺纹匹配；
第二电极柱3，第二电极柱3内开设有第二连接孔5，可连接供电装置；第二电极柱3的形状为圆柱形，直径与第一电极柱1的主直径一致(非台肩直径)；第二连接孔5开设在第二电极柱3与供电装置接触的底部表面位置处，深度贯穿第二电极柱3，大小与供电装置上的螺栓匹配，第二连接孔5内表面设置有内螺纹，并与供电装置上的螺栓表面螺纹匹配；
异型电极柱2的形状为圆柱形，异型电极柱2的直径小于第一电极柱1，且异型电极柱2的直径小于第二电极柱3的直径，确保异型电极柱2横截面的面积小于第一电极柱1的横截面积，且异型电极柱2横截面的面积小于第二电极柱3的横截面积，使整体石墨电极柱呈工字型，既能减小功耗，又能满足支撑强度；异型电极柱2的直径设置为70mm；
异型电极柱2与第一电极柱1接触的位置处还设有与第一连接孔4配合的第一补充连接孔6，用于连接加热器电极脚，第一补充连接孔6匹配第一连接孔4的大小，且同轴设置，用 于容置与加热器电机脚连接的螺栓；
异型电极柱2与第二电极柱3接触的位置处还设有与第二连接孔5配合的第二补充连接孔7，用于连接供电装置，第二补充连接孔7匹配第二连接孔5的大小，并同轴设置，容置与供电装置连接的螺栓。
实施例2
参照图2，第一电极柱1，第一电极柱1内开设有第一连接孔4，可连接加热器电极脚；第一电极柱1的形状为圆柱形，并设置有一与加热器电极脚匹配的台肩；第一连接孔4开设在第一电极柱1与加热器电极脚接触的顶部表面位置处，深度贯穿第一电极柱1，大小与加热器电极脚上的螺栓匹配，第一连接孔4的内部表面一般设置有内螺纹，并与加热器电极脚上的螺栓表面螺纹匹配；
第二电极柱3，第二电极柱3内开设有第二连接孔5，可连接供电装置；第二电极柱3的形状为圆柱形，直径与第一电极柱1的主直径一致(非台肩直径)；第二连接孔5开设在第二电极柱3与供电装置接触的底部表面位置处，深度贯穿第二电极柱3，大小与供电装置上的螺栓匹配，第二连接孔5内表面设置有内螺纹，并与供电装置上的螺栓表面螺纹匹配；
异型电极柱2的形状为圆柱形，异型电极柱2的直径小于第一电极柱1的直径，且异型电极柱2的直径小于第二电极柱3的直径，且在异型电极柱2的中间开设有一通孔8，其中，异型电极柱2的直径为65mm。
通孔8的直径小于第一连接孔4的直径，通孔8的直径小于第二连接孔5的直径，通孔8贯通异型电极柱2，并且贯通第一连接孔4和第二连接孔5。通孔8在本实施例中的直径为第一连接孔4直径的二分之一，由于加热器电极脚的连接螺栓小于供电装置的连接螺栓，第一连接孔4的直径小于第二连接孔5的直径。但是第一连接孔4、通孔8与第二连接孔5为同轴设置，即第一连接孔4、通孔8与第二连接孔5的轴线为同一根。通孔8的设置既不会减小石墨电极柱的支撑强度，还能够降低石墨电极柱的耗材，同时降低石墨电极柱的传导热，解决现有技术中能量损耗多的问题。
在异型电极柱2上还开设有一排气孔9，一侧连通通孔8，另一侧连通石墨电极柱的外部，能够在石墨电极柱热胀冷缩的过程中为电极柱提供一定膨胀空间，防止在使用过程中产生爆裂的情况，延长石墨电极柱的使用寿命。
以上对本申请的多个实施例进行了详细说明，但所述内容仅为本申请的较佳实施例，不能被认为用于限定本申请的实施范围。凡依本申请申请范围所作的均等变化与改进等，均应仍归属于本申请的专利涵盖范围之内。

Claims (11)

  1. 一种降低功耗的异型石墨电极柱，其中，
    包括：
    第一电极柱，所述第一电极柱内开设有第一连接孔，可连接加热器电极脚；
    第二电极柱，所述第二电极柱内开设有第二连接孔，可连接供电装置；
    异型电极柱，设置在所述第一电极柱和所述第二电极柱之间，并连接所述第一电极柱与所述第二电极柱，其中，所述异型电极柱的最小横截面积小于所述第一电极柱的最小横截面积，且所述异型电极柱的最小横截面积小于所述第二电极柱的最小横截面积。
  2. 根据权利要求1所述的降低功耗的异型石墨电极柱，其中，
    所述异型电极柱的形状为圆柱形，所述异型电极柱的直径小于所述第一电极柱的直径，且所述异型电极柱的直径小于所述第二电极柱的直径。
  3. 根据权利要求1-2任一项所述的降低功耗的异型石墨电极柱，其中，
    所述异型电极柱与所述第一电极柱接触的位置处还设有与所述第一连接孔配合的第一补充连接孔，用于连接所述加热器电极脚。
  4. 根据权利要求1-3任一项所述的降低功耗的异型石墨电极柱，其中，
    所述异型电极柱与所述第二电极柱接触的位置处还设有与所述第二连接孔配合的第二补充连接孔，用于连接所述供电装置。
  5. 根据权利要求1-4任一项所述的降低功耗的异型石墨电极柱，其中，
    所述异型电极柱的形状为圆柱形，所述异型电极柱的直径小于所述第一电极柱的直径，且所述异型电极柱的直径小于所述第二电极柱的直径，且在所述异型电极柱的中间开设有一通孔。
  6. 根据权利要求1-5任一项所述的降低功耗的异型石墨电极柱，其中，所述异型电极柱与所述第一电极柱和所述第二电极柱为一体结构。
  7. 根据权利要求1-5任一项所述的降低功耗的异型石墨电极柱，其中，所述异型电极柱与所述第一电极柱和所述第二电极柱为分体结构。
  8. 根据权利要求5所述的降低功耗的异型石墨电极柱，其中，所述异型电极柱上开设有排气孔，所述排气孔的一侧连通所述通孔，所述排气孔的另一侧连通石墨电极柱的外部。
  9. 根据权利要求5-6任一项所述的降低功耗的异型石墨电极柱，其中，
    所述通孔的直径小于所述第一连接孔的直径，所述通孔的直径小于所述第二连接孔的直径，并且所述通孔贯通所述第一连接孔和所述第二连接孔。
  10. 根据权利要求8-9任一项所述的降低功耗的异型石墨电极柱，其中，
    所述第一连接孔、所述通孔与所述第二连接孔同轴设置。
  11. 根据权利要求1-8任一项所述的降低功耗的异型石墨电极柱，其中，
    所述异型电极柱的最小宽度大于等于60mm。
PCT/CN2023/083883 2022-03-29 2023-03-24 一种降低功耗的异型石墨电极柱 WO2023185696A1 (zh)

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