WO2012016399A1 - 一种热水器加热棒 - Google Patents

一种热水器加热棒 Download PDF

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Publication number
WO2012016399A1
WO2012016399A1 PCT/CN2010/078083 CN2010078083W WO2012016399A1 WO 2012016399 A1 WO2012016399 A1 WO 2012016399A1 CN 2010078083 W CN2010078083 W CN 2010078083W WO 2012016399 A1 WO2012016399 A1 WO 2012016399A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal tube
heating rod
water heater
heating wire
heating
Prior art date
Application number
PCT/CN2010/078083
Other languages
English (en)
French (fr)
Inventor
陈建亮
Original Assignee
Chen Jianliang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chen Jianliang filed Critical Chen Jianliang
Publication of WO2012016399A1 publication Critical patent/WO2012016399A1/zh

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Classifications

    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • 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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the present invention relates to a heating device, and more particularly to a water heater heating rod.
  • a heating rod for a water heater is installed in a heating cup, which converts electrical energy into heat to heat the water in the heating cup.
  • the structure of the heating rod generally consists of an outer sleeve made of stainless steel, nickel-iron alloy, copper, and a heating wire in the sleeve.
  • the heating rod is immersed in acidic water for a long time, and the outer casing of the heating rod is more likely to be corroded; as the corrosion increases, the perforation of the casing will eventually occur.
  • the water outside the casing will enter the inside of the casing and directly contact the heating wire, causing the heating wire to be blown due to a short circuit, or even causing electric leakage, causing personal injury to the user.
  • the object of the present invention is to provide a water heater heating rod which is high in safety and suitable for heating acidic water quality.
  • the heating rod of the present invention comprises a metal tube and a heating wire, and the heating wire is disposed in the metal tube, and the heating wire is led out of the metal tube by the wiring head, and is connected with an external power source, wherein the hot wire in the metal tube is
  • the inner wall of the metal tube is filled with a dense insulating and thermally conductive material.
  • the insulating and thermally conductive material is a magnesium oxide powder to which a silicone oil is added, wherein the weight percentage of the added silicone oil is 0.06 ⁇ 3 ⁇ 4-0.08 ⁇ 3 ⁇ 4.
  • the metal tube of the heating rod of the utility model is an oxygen-free copper tube or a titanium tube.
  • Oxygen-free copper tubes or titanium tubes have good corrosion resistance and can effectively prevent the occurrence of perforations.
  • the heating rod of the utility model has good corrosion resistance, can prevent electric leakage accident even when the heating rod is perforated, thereby effectively improving the service life and safety of the heating rod of the water heater, in particular Suitable for use in acidic water quality environments.
  • FIG. 1 is a schematic view showing the overall structure of a heating rod of the present invention
  • FIG. 2 is a schematic structural view of a heating rod of the present invention
  • Figure 3 is a schematic cross-sectional view of the heating rod of the present invention.
  • the heating rod of the present invention comprises a metal tube 1 and a heating wire 2, the heating wire 2 is disposed in the metal tube 1, and the heating wire 2 is led out of the metal tube 1 by the terminal 3, and
  • the external power supply connection is filled with a dense insulating and thermally conductive material 4 between the heating wire 2 in the metal pipe 1 and the inner wall of the metal pipe 1.
  • the insulating and thermally conductive material 4 is a magnesium oxide powder to which a silicone oil is added, wherein the weight percentage of the added silicone oil is 0.06 ⁇ 3 ⁇ 4 - 0.08 ⁇ 3 ⁇ 4.
  • the metal pipe 1 is an oxygen-free copper pipe or a titanium pipe.
  • the heating wire 2 may be made of a material suitable for the prior art, such as a nickel-chromium alloy wire, a copper-nickel alloy wire, an iron-chromium aluminum wire, or the like.
  • the insulating and thermally conductive material 4 may also be various insulating filling materials in the prior art, such as mica, asbestos, marble, ceramics, glass, etc., and they are combined with dodecylbenzene, polyisobutylene, isopropylbiphenyl, etc. a mixture of insulating oils.
  • the metal pipe 1 can be U-shaped, thread-shaped, W-shaped, M-shaped, curved, straight, etc. to meet different needs.

Description

一种热水器加热棒 技术领域 本实用新型涉及一种加热装置， 尤其涉及一种热水器加热棒。
背景技术 热水器的加热棒安装于发热杯内， 其将电能转化为热能， 为发热杯中的水进行加热。 加热棒 的结构一般包括由不锈钢、镍铁合金、铜制成的外部套管和套管内的发热丝组成。在水质比较差的情况下， 特别是在部分酸性水质地区， 加热棒长期浸泡在酸性水中， 加热棒的外部套管比较容易被腐蚀； 随着腐蚀 的加重， 最终会引起套管的穿孔， 这样套管外的水将进入套管内部， 直接接触加热丝， 导致加热丝因短路 而熔断， 甚至导致漏电， 对使用者造成人身伤害。
说
发明内容 本实用新型的目的是提供一种使用安全性高， 适用于对酸性水质进行加热的热水器加热棒。
为实现上述目的， 本实用新型的加热棒包括金属管和发热丝， 发热丝设置于金属管内， 发热丝由接线 头引出金属管， 并与外部电源连接， 其中， 金属管内的发书热丝与金属管内壁之间填充有密实的绝缘导热材 料。 所述的绝缘导热材料为添加了硅油的氧化镁粉， 其中添加硅油的重量百分比为 0.06<¾-0.08<¾。 由于在 金属管内的发热丝周围填满了密实的绝缘导热材料， 减少了金属管内的空气含量， 有效地减缓了金属管内 壁的氧化腐蚀过程。 同时， 添加了硅油的氧化镁粉将发热丝和金属管隔离起来， 即使金属管发生穿孔， 发 热丝也不会直接与水接触， 避免了发热丝熔断故障和漏电事故的发生。
本实用新型加热棒的金属管为无氧铜管或是钛管。 无氧铜管或是钛管有很好的耐腐蚀性， 可以有效地 防止穿孔的发生。
与现有技术相比， 本实用新型的加热棒具有良好的抗腐蚀性， 即使在加热棒穿孔的时候也能防止发生 漏电事故， 从而有效地提高了热水器加热棒的使用寿命和安全性， 特别适合在酸性水质的环境中使用。 附图说明 下面结合附图和具体实施方式对本实用新型作进一步详细的说明：
图 1为本实用新型加热棒的整体结构示意图；
图 2为本实用新型加热棒的结构示意图；
图 3为本实用新型加热棒的截面示意图。
具体实施方式 如图 1至 3所示， 本实用新型的加热棒包括金属管 1和发热丝 2， 发热丝 2设置于金属 管 1内， 发热丝 2由接线头 3引出金属管 1， 并与外部电源连接， 其中， 金属管 1内的发热丝 2与金属管 1内壁之间填充有密实的绝缘导热材料 4。 所述的绝缘导热材料 4为添加了硅油的氧化镁粉， 其中添加硅 油的重量百分比为 0.06<¾-0.08<¾。 所述的金属管 1为无氧铜管或是钛管。
所述的发热丝 2可以是现有技术中适合的材料制成， 如镍铬合金丝、 铜镍合金丝、 铁铬铝丝等。 所述的绝缘导热材料 4还可以是现有技术中各种绝缘填充材料， 如云母、 石棉、 大理石、 陶瓷、 玻璃 等， 以及它们与十二垸基苯、 聚异丁烯、 异丙基联苯等绝缘油的混合物。
所述的金属管 1可以是 U形、 螺纹形、 W形、 M形、 回形、 直形等不同形状， 以满足不同的使用需
C808.0/0T0ZN3/X3d 66C9T0/Z10Z OAV

Claims

权 利 要 求 书
1、 一种热水器加热棒， 包括金属管和发热丝， 发热丝设置于金属管内， 发热丝由接线头引出金属管， 并与外部电源连接， 其特征在于： 金属管内的发热丝与金属管内壁之间填充有密实的绝缘导热材料。
2、 根据权利要求 1所述的一种热水器加热棒， 其特征在于： 所述的绝缘导热材料为添加了硅油的氧 化镁粉。
3、 根据权利要求 2所述的一种热水器加热棒， 其特征在于： 所述的添加了硅油的氧化镁粉中硅油的 重量百分比为 ο.θό^-ο.θδ^^
4、 根据权利要求 1、 2或 3所述的一种热水器加热棒， 其特征在于： 所述的金属管为无氧铜管或是钛 管。
PCT/CN2010/078083 2010-08-06 2010-10-25 一种热水器加热棒 WO2012016399A1 (zh)

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CN2010202840735U CN201846489U (zh) 2010-08-06 2010-08-06 一种热水器加热棒
CN201020284073.5 2010-08-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032722A1 (en) 2012-08-30 2014-03-06 Quantum Technologie Gmbh Electrical heating element

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102316614B (zh) * 2011-09-20 2013-03-27 无锡博睿奥克电气有限公司 电热管的端部防潮结构
CN104955184B (zh) * 2015-06-24 2016-07-06 合肥长城制冷科技有限公司 一种新型柱丝复合圆棒状发热管
CN109168206A (zh) * 2018-09-11 2019-01-08 安徽苏立科技股份有限公司 一种免封口的耐高温电热管加工工艺
CN113582669A (zh) * 2021-07-30 2021-11-02 大石桥市美尔镁制品有限公司 一种煅烧热水器用氧化镁粉、其制备方法及用途

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389045A (en) * 1977-01-17 1978-08-05 Matsushita Electric Ind Co Ltd Manufacturing of sheath heater
CN101102627A (zh) * 2006-07-03 2008-01-09 北京有色金属研究总院 防垢电加热管及其制备方法
CN101340745A (zh) * 2008-08-29 2009-01-07 镇江东方电热有限公司 提高电加热管性能的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389045A (en) * 1977-01-17 1978-08-05 Matsushita Electric Ind Co Ltd Manufacturing of sheath heater
CN101102627A (zh) * 2006-07-03 2008-01-09 北京有色金属研究总院 防垢电加热管及其制备方法
CN101340745A (zh) * 2008-08-29 2009-01-07 镇江东方电热有限公司 提高电加热管性能的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032722A1 (en) 2012-08-30 2014-03-06 Quantum Technologie Gmbh Electrical heating element

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