WO2016183889A1 - 一种新型温控隔热发热盘 - Google Patents

一种新型温控隔热发热盘 Download PDF

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Publication number
WO2016183889A1
WO2016183889A1 PCT/CN2015/081334 CN2015081334W WO2016183889A1 WO 2016183889 A1 WO2016183889 A1 WO 2016183889A1 CN 2015081334 W CN2015081334 W CN 2015081334W WO 2016183889 A1 WO2016183889 A1 WO 2016183889A1
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WIPO (PCT)
Prior art keywords
terminal
heating plate
contact
ceramic
elastic piece
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PCT/CN2015/081334
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English (en)
French (fr)
Inventor
张兵
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深圳市鑫富达电器有限公司
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Priority to EP15879268.9A priority Critical patent/EP3116286A4/en
Publication of WO2016183889A1 publication Critical patent/WO2016183889A1/zh

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    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
    • H01H37/48—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible rigid rods or tubes
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/04—Heating plates with overheat protection means

Definitions

  • the present invention relates to a novel temperature-controlled heat insulation heating plate.
  • the existing high-temperature heating disk technology generally adopts a ring-shaped electric heating wire wound in a ceramic disk as a heating body, which is characterized in that it can be rapidly heated after being energized, and the existing high-temperature heating plate adopts a cross section.
  • the circular heating wire has a small cross-sectional area and a short life span, which is not in line with economic principles.
  • the product itself does not have its own temperature control device, the temperature is not controlled, which brings safety hazards. Also, because there is no temperature control device, the long-term maximum Power operation, relatively expensive, and due to the use of ceramics as an insulating case, the temperature isolation capability is extremely lacking, and the heat is wasted seriously, which is also inconsistent with economic principles.
  • the main object of the present invention is to provide a novel temperature-controlled heat insulation heating plate with reliable performance, stable temperature control, better heat insulation effect, better heat effect, longer service life and energy saving and environmental protection.
  • a novel temperature-controlled heat insulation heating plate comprising a heating plate and a double contact thermostat
  • the dual-contact thermostat includes a base, a first terminal and a second terminal are disposed on one side of the base, and a third terminal and a fourth terminal are disposed on the other side, and the first terminal and the third terminal respectively a first elastic piece and a third elastic piece are disposed, the first elastic piece and the third elastic piece are respectively provided with a first contact and a third contact, and the second terminal and the fourth terminal are respectively provided with a second contact and a fourth contact Point, the first contact and the second contact are opposite, the third contact and the fourth contact are opposite; a ceramic thimble passes through the first elastic piece and the third elastic piece, one end of the ceramic thimble abuts the metal pipe, and the other end abuts the activity
  • the movable member is sleeved with a spring, and the bottom portion is provided with a blocking piece; the metal tube protrudes from the base, and the end is provided with a plug, and the tube is provided with a ceramic rod and a metal rod which are sequentially
  • the heating plate comprises a chassis and a hair tropic, the tropical curl is arranged on the chassis, and the two ends of the tropics are located at the chassis
  • the edges are each soldered to an external terminal, the external terminal is disposed on the ceramic seat, and the ceramic seat is fixed on the edge of the chassis
  • the base of the double-contact thermostat is fixed to the edge of the chassis of the heat-generating disk, the first terminal is soldered to an external terminal on the heat-generating disk, and the end of the metal tube is extended above the center of the heat-generating disk.
  • the hair tropic is corrugated, and the cross-sectional shape is flat.
  • a heat insulation pad is arranged between the heat-producing belt and the chassis.
  • a ceramic fixing seat is arranged above the center of the heating plate, and the end of the metal tube is fixed in the ceramic fixing seat
  • the inner edge of the heating plate chassis is provided with a retaining ring.
  • the weight percentage of each component of the heat insulation mat is as follows:
  • the aggregate component is 5%-70% of vermiculite
  • the filler composition is 1 ⁇ 3 ⁇ 4-20% white carbon black, 1 ⁇ 3 ⁇ 4-20 ⁇ 3 ⁇ 4 silicon micro powder or expanded perlite, 1%-20% mullite powder, 1 ⁇ 3 ⁇ 4 -20 ⁇ 3 ⁇ 4 microsilica, 1 ⁇ 3 ⁇ 4-20 ⁇ 3 ⁇ 4 algae;
  • the sunscreen composition is S ⁇ S ⁇ titanium dioxide, S ⁇ S ⁇ silicon carbide;
  • the binder component is 5% - 30 ⁇ 3 ⁇ 4 of cement, glass water or aluminum dihydrogen phosphate solution;
  • the metal casing has a reasonable structure, the bottom has a supporting member mounting foot, a flying edge is arranged around the fixing for fixing the heat carrier, and the edge is fixed to the ceramic piece and the temperature controller.
  • the bottom insulation pad and the surrounding insulation ring are fixed inside the metal casing, and the installation is simple and convenient;
  • the insulation layer material formulation fully considers the various properties of the various raw materials used, such as expansion coefficient, shrinkage coefficient, thermal conductivity, moisture absorption rate, etc., and divides various raw materials into aggregates, fillers, sunscreens,
  • the combination of the binder and the water has the best ratio configuration, which improves the product's performance and prolongs its service life. Long-term use does not split and does not deform.
  • the temperature control device is fixed on the heating plate, and the metal tube at the front end thereof is inserted into the heating body disk, and the temperature control is further controlled. Reasonable and more accurate.
  • the heating plate has compact structure, convenient installation, fast heating, safety and reliability, and long service life.
  • thermostat 2 is a schematic structural view of a thermostat
  • FIG. 3 is a contact state diagram of the thermostat at a low temperature
  • FIG. 4 is a cross-sectional view showing the structure of a thermostat
  • FIG. 5 is a schematic view of a tropical structure
  • FIG. 6 is a cross-sectional view showing the structure of a heat generating disk.
  • a novel temperature-controlled heat insulation heating plate comprising a heating plate and a double contact thermostat
  • the dual-contact temperature controller includes a base 1, a first terminal 2 and a second terminal 3 are disposed on one side of the base, and a third terminal 4 and a fourth terminal 5 are disposed on the other side, and the first terminal
  • the first elastic piece 6 and the third elastic piece 7 are respectively disposed on the third terminal, and the first elastic piece and the third elastic piece are respectively provided with a first contact 8 and a third contact 9, respectively, and the second terminal and the fourth terminal respectively a second contact 10 and a fourth contact 11 are disposed, the first contact and the second contact are opposite, and the third contact and the fourth contact are opposite;
  • a ceramic thimble 12 passes through the first elastic piece and the third elastic piece, One end of the ceramic thimble abuts the metal tube 13, and the other end abuts the movable member 14; the movable member is sleeved with a spring 15 and the bottom portion is provided with a blocking piece 16; the metal tube protrudes from the base, and the end is provided with a plug 17
  • the ceramic rod and the metal rod in the metal tube are the transmission parts.
  • the thermal expansion and contraction of the metal tube pushes the elastic piece through the ceramic rod and the metal rod to break or close the contact;
  • the rods ensure that each ceramic rod is made straight, allowing the ceramic rod to move smoothly in the metal tube, because the length is too long and there is a problem of bending.
  • the device utilizes the expansion and contraction change of the metal tube to convert into the expansion and contraction of the kinetic energy control spring, and pushes the elastic piece to be closed or closed by the movable member, thereby controlling the power-off or energization of the heating object to achieve the purpose of controlling the temperature.
  • the device is mounted on the heating plate during operation, the first terminal and the second terminal are connected to the main circuit of the heating plate, and the third terminal and the fourth terminal are connected to the indication circuit of the heating plate, and the metal tube is placed on the heating plate. The temperature is directly sensed in the middle of the middle.
  • the metal tube When the metal tube senses high temperature, it will expand under heat, its length will become longer, the spring on the movable part will elongate, and the ceramic thimble will be driven to move upwards.
  • the ceramic thimble carries the first elastic piece away from the second elastic piece at the bottom, One contact and the second contact are separated, and the main circuit is cut off. At the same time, the third elastic piece moves upward, and the third contact contacts the fourth contact, and the working indication circuit is turned on.
  • the temperature When the temperature is lowered, the metal tube is cooled and contracted, so that the terminals are reversed or turned on in reverse, thereby repeatedly operating to achieve the purpose of temperature control, and the control temperature of the present invention can be as high as 800 degrees.
  • the heating plate comprises a chassis 20 and a heating belt 21, wherein the heating coil is disposed on the chassis, the two ends of the heating belt are located at the edge of the chassis, and each is soldered to an external terminal 22, 23, and the external terminal is disposed on the ceramic seat 24.
  • the ceramic seat is fixed to the edge of the chassis;
  • the base of the double-contact thermostat is fixed to the edge of the chassis of the heat-generating disk, and the first terminal is soldered to an external terminal 23 on the heat-generating disk, and the end of the metal tube protrudes above the center of the heat-generating disk.
  • the hair tropic is corrugated, and the cross-sectional shape is flat. Because of the flat cross section of the tropics, the cross-sectional area is increased, and the life is greatly increased.
  • a heat insulating pad 25 is disposed between the heat generating belt and the chassis.
  • the aggregate component is 5%-70% of vermiculite
  • (2) Filler composition is 1 ⁇ 3 ⁇ 4-20% white carbon black, 1 ⁇ 3 ⁇ 4-20 ⁇ 3 ⁇ 4 silicon fine powder or expanded perlite, 1%-20% mullite powder, 1 ⁇ 3 ⁇ 4 -20 ⁇ 3 ⁇ 4 microsilica, 1 ⁇ 3 ⁇ 4-20 ⁇ 3 ⁇ 4 algae;
  • the sunscreen composition is 2 ⁇ 3 ⁇ 4-25 ⁇ 3 ⁇ 4 titanium dioxide, 2 ⁇ 3 ⁇ 4-25 ⁇ 3 ⁇ 4 silicon carbide;
  • the binder component is 5%-30 ⁇ 3 ⁇ 4 of cement, glass water or aluminum dihydrogen phosphate solution;
  • the above raw materials are formed by stirring, mixing, die-casting, baking and sintering; the material formulation fully considers various properties such as expansion coefficient, shrinkage coefficient, thermal conductivity, moisture absorption rate of various raw materials utilized, and various raw materials. It is divided into five components: aggregate, filler, sunscreen, binder and water. It has the best proportion configuration, which can improve the performance of the product and prolong its service life. [0049] wherein a ceramic holder 26 is disposed above the center of the heating plate, and the end of the metal tube is fixed in the ceramic holder
  • the inner edge of the heating plate chassis is provided with a retaining ring 27, the retaining ring is a high temperature resistant, insulating structure
  • the bottom surface has a groove.
  • the heating plate base has a flashing edge around the base, which can be directly fixed by the flashing edge; the bottom of the heating plate base has three mounting feet, and the bottom mounting bracket is directly fixed; the heating belt adopts 0.05-0.1CM thick iron.
  • the chrome alloy sheet is an alloy material with rare earth elements and strong oxidation resistance. It belongs to the sheet of iron-chromium alloy sheet and has a larger surface area than the conventional heating wire. The larger the surface area, the faster the heat transfer, the iron-chromium alloy.
  • the film itself has a low temperature and is close to the ambient temperature in the cavity of the insulating mat, so that the iron-chromium alloy sheet has a long life and a thermal effect.

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  • Resistance Heating (AREA)

Abstract

一种温控隔热发热盘，包括一发热盘及一双触点温控器。所述双触点温控器包括一底座（1），底座（1）一侧设有第一端子（2）和第二端子（3），另一侧设有第三端子（4）和第四端子（5），第一端子（2）和第三端子（4）上分别设有第一弹片（6）和第三弹片（7）；一陶瓷顶针（12）穿过第一弹片（6）和第三弹片（7），陶瓷顶针（12）一端抵接金属管（13），另一端抵接活动件（14）；活动件（14）上套设有弹簧（15），底部设有挡片（16）；金属管（13）从底座（1）内伸出，金属管（13）内设有依次抵接的陶瓷棒（18）和金属棒（19），金属棒（19）底端抵接陶瓷顶针（12）。通过上述结构可以使得发热盘安装方便，加热快速，安全可靠，使用寿命长。

Description

一种新型温控隔热发热盘 技术领域
[0001] 本发明涉及一种新型温控隔热发热盘。
[0002] 背景技术
[0003] 目前， 现有高温发热盘技术， 一般采用是一种环形电热丝绕制在一个陶瓷盘中 做加热体， 其特点是， 通电后可以快速升温， 现有高温发热盘皆为采用截面为 圆形的发热丝， 截面积较小， 寿命较短， 不符合经济原则； 该产品本身没有自 带温控装置， 温度没有得到控制， 带来安全隐患； 也因为无温控装置， 长期最 高功率运行， 比较费电， 并且由于用陶瓷作为绝缘壳体， 隔温能力极为欠缺， 热量浪费严重， 同样不符合经济原则。
技术问题
问题的解决方案
技术解决方案
[0004] 本发明主要的目的在于， 提供一种性能可靠、 控温稳定安全、 隔热效果更佳， 热效应更好、 使用寿命更长且节能环保的新型温控隔热发热盘。
[0005] 为解决上述技术问题， 本发明的技术方案是：
[0006] 一种新型温控隔热发热盘， 包括一发热盘及一双触点温控器，
[0007] 所述双触点温控器包括一底座， 底座一侧设有第一端子和第二端子， 另一侧设 有第三端子和第四端子， 第一端子和第三端子上分别设有第一弹片和第三弹片 ， 第一弹片和第三弹片上分别设有第一触点和第三触点， 第二端子和第四端子 上分别设有第二触点和第四触点， 第一触点和第二触点相对， 第三触点和第四 触点相对； 一陶瓷顶针穿过第一弹片和第三弹片， 陶瓷顶针一端抵接金属管， 另一端抵接活动件； 活动件上套设有弹簧， 底部设有挡片； 金属管从底座内伸 出， 末端设有堵头， 管内设有依次抵接的陶瓷棒和金属棒， 金属棒底端抵接陶 瓷顶针；
[0008] 所述发热盘包括底盘和发热带， 发热带卷曲设于底盘上， 发热带两端位于底盘 边缘， 各与一外接端子焊接， 外接端子设在陶瓷座上， 陶瓷座固定在底盘边缘
[0009] 双触点温控器的底座固定在发热盘底盘边缘， 第一端子与发热盘上的一个外接 端子焊接， 金属管末端伸出至发热盘中心上方。
[0010] 优选的， 所述发热带为波纹状， 截面形状为扁形。
[0011] 优选的， 发热带与底盘之间设有隔热垫。
[0012] 优选的， 发热盘中心上方设有一陶瓷固定座， 金属管末端固定在陶瓷固定座内
[0013] 优选的， 发热盘底盘内侧边缘设有挡圈。
[0014] 优选的， 所述的隔热垫各成份的重量百分比配置如下：
[0015] (1).骨料成份为 5%-70%的蛭石；
[0016] (2).填充料成份为 1<¾-20%的白碳黑、 1<¾-20<¾的硅微粉或膨胀珍珠岩、 1%-20% 的莫来石粉、 1<¾-20<¾的微硅粉、 1<¾-20<¾的藻土；
[0017] (3).遮光剂成份为 S^ S^的钛白粉， S^ S^的碳化硅；
[0018] (4).结合剂成份为 5%-30<¾的水泥、 玻璃水或磷酸二氢铝溶液；
[0019] (5).耐火纤维成份为 1%-30%的陶瓷纤维、 氧化铝纤维或莫来石纤维；
[0020] (6).水投放比例： 10%-40%。
发明的有益效果
有益效果
[0021] 采用了上述技术方案， 本发明的有益效果为：
[0022] 1、 金属外壳结构合理， 底部有支件安装脚， 四周有飞边用以固定热载体， 边 缘固定陶瓷件及温控器。 金属外壳内固定底部隔热垫及四周隔热圈， 安装简洁 方便；
[0023] 2、 隔热层材料配方充分考虑与利用的各种原材料的膨胀系数、 收缩系数、 导 热率、 吸湿率等各种性能， 将各种原材料分为骨料、 填充料、 遮光剂、 结合剂 及水共五种成份， 调制了最佳的比例配置， 从而达到了提高产品的使用性能、 延长其使用寿命等目的。 长期使用不幵裂、 不变形。
[0024] 3、 温控装置固定在发热盘上， 其前端的金属管伸入发热体盘内， 温度控制更 合理、 更精确。
[0025] 结合以上所述： 此种发热盘结构紧凑， 安装方便， 加热快速， 安全可靠， 使用 寿命长。
对附图的简要说明
附图说明
[0026] 图 1为本发明整体结构示意图；
[0027] 图 2为温控器结构示意图；
[0028] 图 3为温控器在低温吋的触点状态图；
[0029] 图 4为温控器的结构剖视图；
[0030] 图 5为发热带结构示意图；
[0031] 图 6为发热盘结构剖视图。
本发明的实施方式
[0032] 下面结合附图和实施例对本发明进一步说明。
[0033] 一种新型温控隔热发热盘， 包括一发热盘及一双触点温控器，
[0034] 所述双触点温控器， 包括一底座 1， 底座一侧设有第一端子 2和第二端子 3， 另 一侧设有第三端子 4和第四端子 5， 第一端子和第三端子上分别设有第一弹片 6和 第三弹片 7， 第一弹片和第三弹片上分别设有第一触点 8和第三触点 9， 第二端子 和第四端子上分别设有第二触点 10和第四触点 11， 第一触点和第二触点相对， 第三触点和第四触点相对； 一陶瓷顶针 12穿过第一弹片和第三弹片， 陶瓷顶针 一端抵接金属管 13， 另一端抵接活动件 14; 活动件上套设有弹簧 15， 底部设有 挡片 16; 金属管从底座内伸出， 末端设有堵头 17， 管内设有依次抵接的陶瓷棒 1 8和金属棒 19， 金属棒底端抵接陶瓷顶针。 其中， 陶瓷棒共有两根， 金属管中陶 瓷棒和金属棒的作用是传动部件， 金属管的热胀冷缩通过陶瓷棒和金属棒推动 弹片， 使触点断幵或闭合； 使用两根陶瓷棒能保证每根陶瓷棒制造吋都是笔直 的， 让陶瓷棒在金属管内活动顺畅， 因为长度过长会存在弯曲的问题。
[0035] 本装置利用了金属管热胀冷缩变化转换为动能控制弹簧的伸缩， 并通过活动件 推动弹片断幵或闭合， 从而控制加热物体的断电或通电， 达到控制温度目的。 [0036] 本装置在工作吋， 安装在发热盘上， 第一端子和第二端子连接发热盘的主回路 ， 第三端子和第四端子连接发热盘的指示回路， 将金属管放置于发热盘中间上 方直接感应温度。 当金属管感应到高温吋， 将受热膨胀， 其长度变长， 活动件 上的弹簧将会伸长， 驱动陶瓷顶针向上移动， 此吋陶瓷顶针带着第一弹片远离 底部的第二弹片， 第一触点和第二触点分离， 切断主回路。 同吋， 第三弹片向 上移动， 带动第三触点接触第四触点， 接通工作指示回路。 而当温度降低吋， 金属管受冷收缩， 使得各端子反向断幵或接通， 由此反复动作， 达到温度控制 的目的， 本实用新型的控制温度可高达 800度。
[0037] 所述发热盘包括底盘 20和发热带 21， 发热带卷曲设于底盘上， 发热带两端位于 底盘边缘， 各与一外接端子 22、 23焊接， 外接端子设在陶瓷座 24上， 陶瓷座固 定在底盘边缘；
[0038] 双触点温控器的底座固定在发热盘底盘边缘， 第一端子与发热盘上的一个外接 端子 23焊接， 金属管末端伸出至发热盘中心上方。
[0039] 其中， 所述发热带为波纹状， 截面形状为扁形， 由于采用扁形截面的发热带， 截面积相比有所增加， 寿命大大增加。
[0040] 其中， 发热带与底盘之间设有隔热垫 25。
[0041] 所述的隔热垫各成份的重量百分比配置如下：
[0042] (1).骨料成份为 5%-70%的蛭石；
[0043] (2).填充料成份为 1<¾-20%的白碳黑、 1<¾-20<¾的硅微粉或膨胀珍珠岩、 1%-20% 的莫来石粉、 1<¾-20<¾的微硅粉、 1<¾-20<¾的藻土；
[0044] (3).遮光剂成份为 2<¾-25<¾的钛白粉， 2<¾-25<¾的碳化硅；
[0045] (4).结合剂成份为 5%-30<¾的水泥、 玻璃水或磷酸二氢铝溶液；
[0046] (5).耐火纤维成份为 1%-30%的陶瓷纤维、 氧化铝纤维或莫来石纤维；
[0047] (6).水投放比例： 10%-40%。
[0048] 以上各原料通过搅拌混合、 压铸成型及烘烤烧结后成型； 材料配方充分考虑与 利用的各种原材料的膨胀系数、 收缩系数、 导热率、 吸湿率等各种性能， 将各 种原材料分为骨料、 填充料、 遮光剂、 结合剂及水共五种成份， 调制了最佳的 比例配置， 从而达到了提高产品的使用性能、 延长其使用寿命等目的。 [0049] 其中， 发热盘中心上方设有一陶瓷固定座 26， 金属管末端固定在陶瓷固定座内
[0050] 其中， 发热盘底盘内侧边缘设有挡圈 27， 所述的挡圈是一种耐高温、 绝缘结构
， 其底面有凹槽。
[0051] 此外， 发热盘底座四周带飞边， 可直接通过飞边来进行固定安装； 发热盘底座 底部幵有三个安装脚， 直接固定底部安装支件； 发热带采用 0.05-0.1CM厚的铁铬 合金片为合金材料， 并添加了稀土元素， 抗氧化性强,属于薄片铁铬合金片， 与 传统的发热丝相比具有更大的表面积， 表面积越大， 热传递越快， 铁铬合金片 本身温度低， 并与隔热垫腔体内的环境温度接近， 使铁铬合金片寿命长， 热效 局。
[0052] 以上实例仅供说明本发明之用， 而非对本发明的限制， 有关技术领域的技术人 员， 在不脱离本发明的精神和范围的情况下， 还可以作出各种变换或变化。 因 此， 所有等同的技术方案也应该属于本发明的范畴， 应由各权利要求限定。

Claims

权利要求书
[权利要求 1] 一种新型温控隔热发热盘， 其特征在于， 包括一发热盘及一双触点温 控器，
所述双触点温控器包括一底座， 底座一侧设有第一端子和第二端子， 另一侧设有第三端子和第四端子， 第一端子和第三端子上分别设有第 一弹片和第三弹片， 第一弹片和第三弹片上分别设有第一触点和第三 触点， 第二端子和第四端子上分别设有第二触点和第四触点， 第一触 点和第二触点相对， 第三触点和第四触点相对； 一陶瓷顶针穿过第一 弹片和第三弹片， 陶瓷顶针一端抵接金属管， 另一端抵接活动件； 活 动件上套设有弹簧， 底部设有挡片； 金属管从底座内伸出， 末端设有 堵头， 管内设有依次抵接的陶瓷棒和金属棒， 金属棒底端抵接陶瓷顶 针；
所述发热盘包括底盘和发热带， 发热带卷曲设于底盘上， 发热带两端 位于底盘边缘， 各与一外接端子焊接， 外接端子设在陶瓷座上， 陶瓷 座固定在底盘边缘；
双触点温控器的底座固定在发热盘底盘边缘， 第一端子与发热盘上的 一个外接端子焊接， 金属管末端伸出至发热盘中心上方。
[权利要求 2] 如权利要求 1所述的温控隔热发热盘， 其特征在于， 所述发热带为波 纹状， 截面形状为扁形。
[权利要求 3] 如权利要求 1所述的温控隔热发热盘， 其特征在于， 发热带与底盘之 间设有隔热垫。
[权利要求 4] 如权利要求 1所述的温控隔热发热盘， 其特征在于， 发热盘中心上方 设有一陶瓷固定座， 金属管末端固定在陶瓷固定座内。
[权利要求 5] 如权利要求 1所述的温控隔热发热盘， 其特征在于， 发热盘底盘内侧 边缘设有挡圈。
[权利要求 6] 如权利要求 3所述的温控隔热发热盘， 其特征在于， 所述的隔热垫各 成份的重量百分比配置如下：
(1) .骨料成份为 5%-70%的蛭石；
(2) .填充料成份为 1%-20%的白碳黑、 1%-20<¾的硅微粉或膨胀珍珠岩 、 l^ O^的莫来石粉、 l^JO^的微硅粉、 l^JO^的藻土；
(3) .遮光剂成份为 2<¾-25%的钛白粉， 2<¾-25%的碳化硅；
(4) .结合剂成份为 5%-30<¾的水泥、 玻璃水或磷酸二氢铝溶液；
(5) .耐火纤维成份为 1%-30%的陶瓷纤维、 氧化铝纤维或莫来石纤维
(6).水投放比例： 10%-40%。
PCT/CN2015/081334 2015-05-15 2015-06-12 一种新型温控隔热发热盘 WO2016183889A1 (zh)

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EP3116286A1 (en) 2015-05-15 2017-01-11 Shenzhen Foda Electric Co., Ltd. Thermally-insulated temperature-controlled heating plate

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