WO2014127538A1 - 立式电热水器 - Google Patents

立式电热水器 Download PDF

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Publication number
WO2014127538A1
WO2014127538A1 PCT/CN2013/071820 CN2013071820W WO2014127538A1 WO 2014127538 A1 WO2014127538 A1 WO 2014127538A1 CN 2013071820 W CN2013071820 W CN 2013071820W WO 2014127538 A1 WO2014127538 A1 WO 2014127538A1
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WO
WIPO (PCT)
Prior art keywords
heat generating
water heater
generating cover
electric heating
pressure plate
Prior art date
Application number
PCT/CN2013/071820
Other languages
English (en)
French (fr)
Inventor
叶远璋
方巧莲
李学研
蓝艳君
袁成
Original Assignee
广东万和电气有限公司
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 广东万和电气有限公司 filed Critical 广东万和电气有限公司
Priority to CN201380073158.5A priority Critical patent/CN105026851B/zh
Priority to PCT/CN2013/071820 priority patent/WO2014127538A1/zh
Publication of WO2014127538A1 publication Critical patent/WO2014127538A1/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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/185—Water-storage heaters using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater

Definitions

  • the invention relates to an electric water heater, in particular to a vertical electric water heater.
  • the storage type electric water heater includes a horizontal electric water heater and a vertical electric water heater.
  • the neutral electric water heater fixes the electric heating tube to the bottom end of the water storage tank through a flange or other components, and the electric heating tube is in direct contact with the water.
  • the heating area of the existing electric heating pipe is small, the heat per unit area of the electric heating pipe is high, causing the water around the electric heating pipe to rapidly heat up and forming a large number of bubbles on the surface of the electric heating pipe, and the bubble is accompanied by a part of heat, and during the rising of the bubble.
  • the uneven heat of the bubbles is passed on to the water above.
  • the heat transfer method is mainly convection of bubbles, the water in the convection area of the bubble rises faster, the water outside the convection area of the bubble rises slowly, and the water temperature in the inner tank is not uniform, that is, the temperature uniformity is poor, and the energy storage effect of the electric water heater is lowered.
  • the current electric heating tube is not in a uniformly distributed isotherm (face) in the working state, which further enlarges the unevenness of the water temperature.
  • the technical problem to be solved by the present invention is to provide a vertical type with good water temperature uniformity, less fouling per unit area on the heat exchange surface, and easy replacement and disassembly of the electric heating tube. water heater.
  • a vertical electric water heater mainly composed of a heating device in a liner and a liner, the heating device comprising a heat generating cover having an opening at one end And at least one electric heating tube disposed in the heat generating cover inner cavity and closely contacting the inner wall of the heat generating cover, wherein the heat generating cover is located on a longitudinal center line of the inner tank.
  • the longitudinal center line of the inner casing coincides with the center line of the heat generating cover, and the electric heating pipe is evenly distributed around the center line of the heat generating cover.
  • the inner wall of the heat generating cover is provided with a card slot, and the electric heating tube is fitted in the card slot in an interference fit manner.
  • the outline of the card slot is consistent with the contour of the electric heating tube, and the card slot covers the outer side surface of the electric heating tube.
  • the outer surface of the heat generating cover is provided with a longitudinal groove.
  • the heating device further includes a pressure plate disposed in an upper portion of the heat generating cover inner cavity, the pressure plate is mounted with a temperature controller, and the pressure plate is detachably connected to the heat generating cover .
  • the pressure plate is provided with a escape groove that avoids the electric heating tube.
  • the center of the pressure plate is provided with a through hole, a center of the top of the heat generating cover is provided with a connecting column, and the outer side of the hanging end of the connecting column is provided with a thread, and the pressing plate is set on the connecting column And threadedly connected to the connecting post by a nut.
  • a center of the pressure plate is provided with a through hole
  • a center of the top of the heat generating cover is provided with a connecting post
  • a hanging end of the connecting column is provided with an internally threaded hole
  • the pressing plate is set on the connection
  • the column is screwed to the connecting post by bolts.
  • the heat generating cover is made of an aluminum alloy material.
  • the vertical electric water heater of the present invention has the advantages that: the heating device is located on the longitudinal center line of the inner tank, and the structure determines the temperature field characteristics formed in the inner tank, that is, centered on the heating device, The same distance forms an infinite number of isothermal points, and then each isothermal point forms an isotherm, each isothermal line forms an isothermal surface, and each isothermal surface forms an isothermal body, so that the temperature difference between the various mass points in the water is greatly reduced, and even tends to zero, so that The temperature of the water in the inner tank is relatively uniform (that is, the temperature is good), thereby maximizing the energy storage effect of the electric water heater.
  • the heat generating cover is closely arranged with the electric heating pipe outside the electric heating pipe, and the electric heating pipe passes through
  • the heat generating cover heats the water in the inner tank, which is equivalent to increasing the heat exchange area between the electric heating pipe and the water, reducing the heat load per unit heat exchange area, greatly suppressing the generation of bubbles, reducing the convective heat transfer phenomenon, and transferring heat.
  • the way from bubble convection to heat conduction is dominant, thus avoiding the temperature difference between the water in the inner tube and the water temperature in the inner tube.
  • the expansion further ensures the temperature uniformity of the water in the inner tank, and at the same time, the heat exchange area of the electric heating pipe and the water increases, so that the scale formed by the unit area on the heat exchange surface is reduced; and the electric heating tube is set in the heat.
  • the cover it is easy to replace and disassemble.
  • FIG. 1 is a schematic structural view of an embodiment of a vertical electric water heater according to the present invention.
  • FIG. 2 is a schematic structural view of a heating device in the embodiment shown in FIG.
  • Figure 3 is an exploded view of the heating device of Figure 2;
  • Figure 4a is a cross-sectional view taken along line A-A of the heat generating cover of Figure 3;
  • Figure 4b is a cross-sectional view taken along line B-B of the heat generating cover of Figure 3;
  • FIG. 5 is a schematic structural view of another embodiment of a connecting post in a vertical electric water heater according to the present invention. In the picture,
  • 1 is a heat generating cover; 2 is an electric heating pipe;
  • 21 is the electric heating pipe terminal; 31 is the escape groove;
  • a vertical electric water heater of the present invention is mainly composed of a heating device in the inner tank 10 and the inner tank 10 , and the heating device comprises a heat generating cover 1 having an opening at one end and a heat generating cover 1 .
  • the inner cavity and the at least one electric heating tube 2 are in close contact with the inner wall of the heat generating cover 1, and the heat generating cover 1 is located on the longitudinal center line of the inner casing.
  • the longitudinal center line of the inner liner 10 coincides with the center line of the heat generating cover 1, and the electric heating tube 2 is evenly distributed around the center line of the heat generating cover.
  • the heat generating cover 1 is made of an aluminum alloy material.
  • a card slot 11 is formed in the inner wall of the heat generating cover 1, and the electric heating tube 2 is fitted in the card slot 11 in an interference fit manner.
  • the outline of the card slot 11 is consistent with the contour of the electric heating tube 2, and the card slot covers the outer side surface of the electric heating tube, so as to better fit the electric heating tube and the inner wall of the heat generating cover.
  • the structure determines the temperature field characteristics formed in the inner casing 10, that is, centered on the heating device and at a distance therefrom.
  • each isothermal point forms an isotherm
  • each isothermal line forms an isothermal surface
  • each isothermal surface forms an isothermal body, so that the temperature difference between the various mass points in the water is greatly reduced, and even tends to zero, so that the inner tank
  • the water temperature in the water is relatively uniform (ie, the temperature is good), thereby maximizing the energy storage effect of the electric water heater.
  • the electric heating The tube 2 heats the water in the inner tank 10 through the heat generating cover 1, which increases the heat exchange area between the electric heating tube 2 and the water, reduces the heat load per unit heat exchange area, and greatly suppresses the generation of bubbles, and the bubble pairs are transmitted.
  • the heating device further includes a pressure plate 3 disposed in the inner cavity of the heat generating cover 1 , and the pressure plate 3 is detachably connected to the heat generating cover 1 .
  • the pressure plate 3 is positioned in the heat generating cover 1 .
  • the pressure plate 3 is provided with a mounting position for controlling the temperature of the water in the inner casing 10 (not shown), and is mainly used for installing the thermostat. Since the pressure plate 3 is in the upper middle portion of the inner cavity of the heat generating cover 1, the temperature controller also heats the upper middle portion of the inner cavity of the cover 1, thereby ensuring that the temperature controller can effectively protect the electric heat pipe when the water level in the inner liner is lowered.
  • the outer side of the pressure plate 3 is provided with an escape tube 31 through which the electric heating tube 2 passes to avoid the electric heating tube 2.
  • the center of the pressure plate 3 is provided with a through hole 32.
  • the center of the top of the heat generating cover 1 is provided with a connecting column 4, and the outer side of the hanging end of the connecting column 4 is provided with an externally threaded column 41 (see FIG. 4a, FIG. 4b), and the pressing plate 3
  • the through hole 32 is fitted to the connecting post 4 and abuts against the step of the inner wall of the heat generating cover 1 and is screwed to the connecting post 4 by the nut 5; or the hanging end of the connecting post 4 is provided with the internally threaded hole 42 (see FIG. 5).
  • the pressure plate 3 is fitted to the connecting post through the through hole 32 and abuts against the step of the inner wall of the heat generating cover, and is screwed to the connecting post 4 by bolts.
  • the pressure plate 3 and the heat generating cover 1 are not limited to the above two types of screw connection detachable connection, and the detachable connection can be realized by other connection methods.
  • the installation method of the heating device for the vertical electric water heater of the present invention firstly, the electric heating tube 2 is sleeved outwardly with the terminal 21 in the card slot 11 of the inner wall of the heat generating cover 1, and the electric heating tube 2 and the card slot 11 are interference fit.
  • the pressing plate 3 is placed on the connecting post 4 through the through hole 32; then the pressing plate is fixed by the nut 5 or the bolt; finally, the heating device passes the opening of the heat generating cover 1 downward through the flange Installed at the bottom of the water storage tank 10, the exposed terminal 21 of the electric heating tube 2 is connected to an external power source through a cable.
  • the electric heating tube fails and needs to be replaced and repaired, just loosen the nut or bolt and pull it out of the electric heating tube. More preferably, as shown in FIG.
  • the outer surface of the heat generating cover is provided with a longitudinal groove 12, thereby further increasing the heating area of the heat generating cover, and the longitudinal setting of the longitudinal groove 12 can avoid the The impurities accumulate in the grooves, and of course, the heating area of the heat generating cover can be increased by other forms.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

公开了一种立式电热水器，主要由内胆和内胆中的加热装置组成，所述加热装置包括一端设有开口的热发生罩、套装于所述热发生罩内腔且与所述热发生罩内壁紧密贴合的至少一个电热管，所述热发生罩位于内胆的纵向中心线上。进一步的，所述内胆的纵向中心线与热发生罩的中心线重合，电热管围绕热发生罩的中心线均匀分布。加热装置位于内胆的纵向中心线上，能够形成一个以加热装置为中心的等温体，从而使水中各质点间的温差大幅减少，使得内胆中的水均温性好；并且所设置的热发生罩，使电热管与水的换热面积增大，进一步保证了内胆中的水的均温性，也使得换热面上单位面积所形成的积垢减少；而且电热管套装在热发生罩中，更换拆卸简便。

Description

立式电热水器
技术领域
本发明涉及一种电热水器， 尤其是一种立式电热水器。
背景技术
电热管的防腐问题和内胆的贮能能力是目前储水式电热水器行业的其中一 些关键技术障碍。 而储水式电热水器又包括卧式电热水器和立式电热水器， 其 中立式电热水器是将电热管通过法兰盘或其他部件固定在储水内胆底端， 电热 管与水直接接触。 这种结构存在以下缺陷：
1、 由于现有电热管的加热面积小， 电热管单位面积的热量较高， 造成电热 管周边的水快速升温并在电热管表面形成大量气泡， 气泡附带部分热量， 并在 气泡的上升过程中， 气泡的热量不均勾传给上面的水。 热传递方式以气泡对流 为主， 气泡对流区域的水升温较快， 气泡对流区域以外的水升温较慢， 导致内 胆中的水温不均匀， 即均温性差， 降低了电热水器的储能效果。 同时， 由于受 电热管的几何形状及安装位置影响， 目前的电热管在工作状态下， 内胆中形成 的温度场并非均匀分布的等温线（面）， 这进一步扩大了水温的不均匀程度。
2、 由于现有电热管的加热面积小， 导致换热面上单位面积所形成的积垢严 重。
3、 电热管发生故障时更换拆卸较麻烦， 有些甚至须将内胆中的水全部放出 再进行更换维修。
发明内容
为解决现有立式电热水器的缺陷与不足， 本发明所要解决的技术问题是提 供一种水温均温性好、 换热面上单位面积积垢少及电热管更换拆卸简便的立式 电热水器。
为了解决现有技术存在的问题， 本发明采用的技术方案是： 一种立式电热 水器， 主要由内胆和内胆中的加热装置组成， 所述加热装置包括一端设有开口 的热发生罩、 套装于所述热发生罩内腔且与所述热发生罩内壁紧密贴合的至少 一个电热管， 所述热发生罩位于内胆的纵向中心线上。
作为对本发明立式电热水器的改进， 所述内胆的纵向中心线与热发生罩的 中心线重合， 电热管围绕热发生罩的中心线均匀分布。
作为对本发明立式电热水器的改进， 所述热发生罩的内壁上开有卡槽， 所 述电热管以过盈配合方式套装于所述卡槽中。
作为对卡槽的改进， 所述卡槽的外形轮廓与所述电热管的外形轮廓一致， 所述卡槽包覆所述电热管的外侧面。
作为对本发明立式电热水器的改进， 所述热发生罩的外表面设有纵向凹槽。 作为对本发明立式电热水器的改进， 所述加热装置还包括设于热发生罩内 腔中上部的压板， 所述压板上安装有温控器且所述压板与所述热发生罩可拆卸 连接。
作为对压板的改进， 所述压板上设有避开电热管的避让槽。
作为对压板的改进， 所述压板的中心开有过孔， 所述热发生罩顶部的中心 设有连接柱， 所述连接柱的悬空端外侧设有螺纹， 所述压板套装于所述连接柱 上且通过螺母与所述连接柱螺纹连接。
作为对压板的改进， 所述压板的中心开有过孔， 所述热发生罩顶部的中心 设有连接柱， 所述连接柱的悬空端设有内螺纹孔， 所述压板套装于所述连接柱 上且通过螺栓与所述连接柱螺纹连接。
作为对热发生罩的改进， 所述热发生罩由铝合金材质制成。 相对于现有技术， 本发明立式电热水器的优点在于： 加热装置位于内胆的 纵向中心线上， 该结构决定了内胆中所形成的温度场特性， 即以加热装置为中 心， 在与之距离相同的位置形成无数个等温点， 继而各等温点形成等温线， 各 等温线形成等温面， 各等温面形成等温体， 从而使水中各质点间的温差大幅减 少， 甚至趋向于零， 使得内胆中的水温度较均匀 （即均温性好）， 从而实现了电 热水器的储能效果最大化； 其次通过在电热管之外设置与电热管紧密贴合的热 发生罩， 电热管通过热发生罩加热内胆中的水， 相当于增大了电热管与水的换 热面积， 使单位换热面积的热负荷减少， 大幅抑制了气泡的产生， 气泡对流传 热现象降低， 热传递的方式由气泡对流为主变成以热传导为主， 从而避免了电 热管周边的水升温过快而导致内胆中的水温度差异扩大， 进一步保证了内胆中 的水的均温性， 同时， 也因电热管与水的换热面积增大， 使得换热面上单位面 积所形成的积垢减少； 而且电热管套装在热发生罩中， 更换拆卸简便。 附图说明
图 1为本发明一种立式电热水器实施例的结构示意图；
图 2为图 1所示实施例中加热装置的结构示意图
图 3为图 2中加热装置的分解图；
图 4a为图 3中热发生罩的 A-A剖视图；
图 4b为图 3中热发生罩的 B-B剖视图；
图 5为本发明一种立式电热水器中连接柱的另一种实施方式的结构示意图。 图中，
1为热发生罩； 2为电热管；
3为压板； 4为连接柱； 5为螺母； 10为内胆；
11为卡槽； 12为从向凹槽;
21为电热管接线端; 31为避让槽；
32为过孔； 41为外螺故柱;
42为内螺纹孔 t 具体实施方式 现结合附图说明本发明用于立式电热水器的加热装置的具体实施方式。 请参阅图 1中所示， 本发明一种立式电热水器主要由内胆 10和内胆 10中 的加热装置组成， 加热装置包括一端设有开口的热发生罩 1、 套装于热发生罩 1 内腔且与热发生罩 1内壁紧密贴合的至少一个电热管 2(在实施例中电热管为两 支)， 所述热发生罩 1位于内胆的纵向中心线上。 更进一步的， 所述内胆 10的纵 向中心线与热发生罩 1的中心线重合， 电热管 2围绕热发生罩的中心线均匀分 布。 其中， 所述热发生罩 1选用铝合金材质。 如图 3、 图 4a和图 4b所示， 所述 热发生罩 1的内壁上开有卡槽 11 , 电热管 2以过盈配合方式套装于卡槽 11中。 较佳地， 卡槽 11的外形轮廓与电热管 2的外形轮廓一致， 且所述卡槽包覆所述 电热管的外侧面， 以此更好地使电热管与热发生罩内壁紧密贴合， 保证电热管 产生的热量快速充分地扩散给热发生罩， 既不会造成电热管的热量过多散失， 还能避免电热管因温度过高而影响使用寿命。 采用本发明的技术方案， 由于加热装置位于内胆 10的纵向中心线上， 该结 构决定了内胆 10中所形成的温度场特性， 即以加热装置为中心， 在与之距离相 同的位置形成无数个等温点， 继而各等温点形成等温线， 各等温线形成等温面， 各等温面形成等温体， 从而使水中各质点间的温差大幅减少， 甚至趋向于零， 使得内胆中的水温度较均匀 （即均温性好）， 从而实现了电热水器的储能效果最 大化； 其次， 通过在电热管 2之外设置与电热管 2紧密贴合的热发生罩 1 , 电热 管 2通过热发生罩 1加热内胆 10中的水， 相当于增大了电热管 2与水的换热面 积， 使单位换热面积的热负荷减少， 大幅抑制了气泡的产生， 气泡对流传热现 象降低， 热传递的方式由气泡对流为主变成以热传导为主， 从而避免了电热管 2 周边的水升温过快而导致内胆 10中的水温度差异扩大， 进一步保证了内胆 10 中的水的均温性， 同时， 也因电热管 2与水的换热面积增大， 使得换热面上单 位面积所形成的积垢减少。 如图 1、 图 2、 图 3所示， 加热装置还包括设于热发生罩 1内腔的压板 3 , 压板 3与热发生罩 1可拆卸连接， 优选的， 压板 3定位在热发生罩 1内腔的中 上部。 压板 3上设有用于控制内胆 10内水温的温控器（图中未视出） 的安装位 置， 主要用于安装温控器。 由于压板 3在热发生罩 1内腔的中上部， 故温控器 也在热发生罩 1内腔的中上部， 从而保证当内胆中水位降低时， 温控器能有效 保护电热管。 压板 3外侧面设有电热管 2从中穿过从而避让所述电热管 2的避 让槽 31。 压板 3的中心处开有过孔 32, 热发生罩 1顶部的中心设有连接柱 4, 连接柱 4的悬空端外侧设有外螺纹柱 41(见图 4a、 图 4b所示）， 压板 3通过过孔 32套装于连接柱 4且搭靠在热发生罩 1内壁的台阶处， 且通过螺母 5与连接柱 4螺纹连接； 或者连接柱 4的悬空端设有内螺纹孔 42(见图 5所示)， 压板 3通过 过孔 32套装于连接柱且搭靠在热发生罩内壁的台阶处， 且通过螺栓与连接柱 4 螺纹连接。 当然， 压板 3与热发生罩 1并不仅仅局限于上述两种螺纹连接方式 可拆卸连接， 也可以通过其他连接方式实现可拆卸连接。 本发明用于立式电热水器的加热装置的安装方式： 首先将电热管 2以接线 端 21朝外卡套在热发生罩 1内壁的卡槽 11中， 电热管 2与卡槽 11过盈配合； 当电热管 2卡装到位后， 再将压板 3通过过孔 32套于连接柱 4上； 然后通过螺 母 5或螺栓将压板固定； 最后本加热装置将热发生罩 1开口朝下通过法兰安装 于储水内胆 10的底部， 电热管 2外露的接线端 21通过线缆与外部电源连接。 当电热管发生故障需要更换维修时， 只需将螺母或螺栓松开拉出电热管即可。 更佳地， 如图 3所示， 所述热发生罩的外表面设有纵向凹槽 12, 以此进一 步增大热发生罩的加热面积， 纵向凹槽 12的纵向设置能避免内胆中的杂质积聚 在凹槽内， 当然也可以通过其他形式增大热发生罩的加热面积。
但并不能因此而理解为对本发明专利范围的限制。 应当指出的是， 对于本领域 的普通技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干变形和 改进， 这些都属于本发明的保护范围。 因此， 本发明专利的保护范围应以所附 权利要求为准。

Claims

权 利 要 求
1、 一种立式电热水器， 主要由内胆和内胆中的加热装置组成， 其特征在于： 所 述加热装置包括一端设有开口的热发生罩、 套装于所述热发生罩内腔且与所述热发 生罩内壁紧密贴合的至少一个电热管， 所述热发生罩位于内胆的纵向中心线上。
2、 根据权利要求 1所述的立式电热水器， 其特征在于： 所述内胆的纵向中心线 与热发生罩的中心线重合， 电热管围绕热发生罩的中心线均匀分布。
3、 根据权利要求 1所述的立式电热水器， 其特征在于： 所述热发生罩的内壁上 开有卡槽， 所述电热管以过盈配合方式套装于所述卡槽中。
4、 根据权利要求 3所述的立式电热水器， 其特征在于： 所述卡槽的外形轮廓与 所述电热管的外形轮廓一致， 所述卡槽包覆所述电热管的外侧面。
5、 根据权利要求 1所述的立式电热水器， 其特征在于： 所述热发生罩的外表面 设有纵向凹槽。
6、 根据权利要求 1所述的立式电热水器， 其特征在于： 所述加热装置还包括设 于热发生罩内腔中上部的压板， 所述压板上安装有温控器且所述压板与所述热发生 罩可拆卸连接。
7、 根据权利要求 6所述的立式电热水器， 其特征在于： 所述压板上设有避开电 热管的避让槽。
8、 根据权利要求 6所述的立式电热水器， 其特征在于： 所述压板的中心开有过 孔， 所述热发生罩顶部的中心设有连接柱， 所述连接柱的悬空端外侧设有螺纹， 所 述压板套装于所述连接柱上且通过螺母与所述连接柱螺纹连接。
9、 根据权利要求 6所述的立式电热水器， 其特征在于： 所述压板的中心开有过 孔， 所述热发生罩顶部的中心设有连接柱， 所述连接柱的悬空端设有内螺纹孔， 所 述压板套装于所述连接柱上且通过螺栓与所述连接柱螺纹连接。
10、 根据权利要求 1 所述的立式电热水器， 其特征在于： 所述热发生罩由铝合 金材质制成。
PCT/CN2013/071820 2013-02-25 2013-02-25 立式电热水器 WO2014127538A1 (zh)

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WO2020172697A1 (de) * 2019-02-26 2020-09-03 Michael Gratz Elektrischer heizstab und energiespeicher
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WO2020172697A1 (de) * 2019-02-26 2020-09-03 Michael Gratz Elektrischer heizstab und energiespeicher
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CN112648734B (zh) * 2019-03-12 2022-07-05 青岛科技大学 一种进行智能布局的电热水器

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