WO2013029386A1 - 电热水壶的密封结构 - Google Patents

电热水壶的密封结构 Download PDF

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Publication number
WO2013029386A1
WO2013029386A1 PCT/CN2012/075120 CN2012075120W WO2013029386A1 WO 2013029386 A1 WO2013029386 A1 WO 2013029386A1 CN 2012075120 W CN2012075120 W CN 2012075120W WO 2013029386 A1 WO2013029386 A1 WO 2013029386A1
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WIPO (PCT)
Prior art keywords
heating element
buckle
large body
opening
electric kettle
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PCT/CN2012/075120
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English (en)
French (fr)
Inventor
徐智慧
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Xu Zhihui
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
    • A47J27/2105—Water-boiling vessels, e.g. kettles electrically heated of the cordless type, i.e. whereby the water vessel can be plugged into an electrically-powered base element
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21166—Constructional details or accessories

Definitions

  • the invention relates to an electric kettle, in particular to a sealing structure of an electric kettle.
  • the electric kettle is one of the commonly used small household appliances, which is used for heating water and at the same time can be used as a container for water, and has the characteristics of being convenient to use.
  • the bottom of the kettle is provided with an electric heating device.
  • the heating device was an electric heating tube, which protruded upward from the bottom of the container into the container to heat the water in the container, because the electric heating tube as a heat generating component was completely Exposed to the water, it is easy to rust due to corrosion, and finally it is damaged and cannot be used, and it affects hygiene.
  • a sealing ring is generally disposed between the top surface of the heating device and the bottom surface of the convex ring, and a compressible spring device is disposed in the axial direction, and the spring device applies a seal from the bottom to the top in the axial direction.
  • the ring is compressed to achieve the force of the seal.
  • the spring may be compressed by the water gravity, causing the seal to be tight, and the assembly of the structure is difficult and the cost is high. It is necessary to make further improvements and improvements.
  • the object of the present invention is to provide a sealing structure of an electric kettle which is simple and reasonable in structure, safe and reliable, simple in assembly and good in sealing effect, in order to overcome the deficiencies in the prior art.
  • the sealing structure of the electric kettle designed according to the purpose comprises a large body with a handle and a bottom cover thereof, and a heating element is disposed in the body, and the structural feature is that the large body corresponding to the heating element is provided with a large body opening
  • the large body opening is provided with a sealing member at a position where the heating element is connected, and the sealing member or the outer side of the large body is provided with a buckle, the buckle fixing the heating element is sealed with the large body; or the sealing member or the outer side of the body is provided with a shrink band, Or the metal wire fixing heating element is sealed with the large body;
  • the sealing member is provided with an opening portion with an opening upward, or the inner wall of the silicone sealing ring and the outer wall of the heating element form an opening portion with an opening upward, or a sealing member contact surface and a large
  • the cross-section of the body opening is pressed and deformed to match.
  • the sealing component comprises a silicone sealing ring, the silicone sealing ring is provided with a beveled edge, and the heating element corresponding to the silicone sealing ring is provided with a fixed edge which can be bent and opened, the fixed edge is arranged around the lower part of the heating element; the silicone sealing ring is sleeved It is mounted on the heating element and is fixed to the fixed side.
  • the large body opening of the large body is inserted into the inlaid portion, and the silicone sealing ring is wrapped or covered on the lower part of the large body; the outer wall of the silicone sealing ring and the buckle abut each other, and the cross section of the large body opening is linear, curved or Tilted.
  • the buckle includes a first buckle and a second buckle.
  • the first buckle and the second buckle are fastened or fixed to each other, and are enclosed by a circular ring, a circle or an ellipse, or a buckle.
  • the ring is a circular ring provided with an opening; the silicone sealing ring, the heating element and the large body are clamped and fixed between the first buckle and the second buckle.
  • the buckle is connected with the bottom cover with more than one protrusion, the protrusion is in a zigzag shape, and is disposed around the upper part of the buckle; the lower part of the buckle is provided with a top ring, the heating element and the upper surface of the top ring Abutting, the heating element is a heating disk.
  • the shrink band or the metal wire is in the shape of an annular ring with an opening, and the ends of the shrink band or the metal wire are tightened and together form a closed circular, circular or elliptical shape; the silicone sealing ring, The heating element and the body are clamped between the shrink band or the metal wire.
  • the bottom cover is provided with a thermostat assembly, a switch button and a power connection assembly electrically connected to the heating element; the power connection assembly is movably connected to the bottom cover; the power connection assembly comprises a power upper cover and a power lower cover, and the power supply cover A coupler is disposed between the lower cover of the power supply.
  • the handle is integrally or separately arranged, and a steam passage is arranged between the handle and the large body, and the steam passage is connected with the inner cavity of the large body, and the material of the large body is made of glass or ceramic parts; There is a cover body hingedly fixed thereto.
  • a sealing member is added to the heating element of the present invention, and a buckle ring, a shrink band or a metal wire is disposed outside the sealing member to realize the sealing connection between the heating element and the large body, and the first buckle and the second buckle are generated during the assembly process.
  • the pressing force causes the silicone sealing ring to elastically deform, filling the gap between the heating element and the large body to achieve the purpose of sealing; the silicone sealing ring, the heating element and the large body are fixed to the shrinking band, or the metal tie Between the wires, the tightness of the connection between the heating element and the large body is ensured, and the problems of poor sealing, misalignment, product leakage and water seepage are effectively prevented, and the quality of the product is improved; at the same time, the structure is simple and reasonable, the service life is long, and the cost is low. It has a wide range of applications and is easy to process and produce.
  • FIG. 1 is a schematic exploded view of an embodiment of the present invention.
  • Figure 2 is a schematic view of the assembly of the silicone sealing ring, the heating plate, the buckle, the top ring and the sealing member.
  • FIG. 3 is a cross-sectional structural view of FIG. 1 assembled.
  • FIG. 4 is a schematic enlarged view of a portion A in FIG. 3.
  • FIG. 5 is a schematic structural view of the heating plate and the silicone sealing ring of FIG. 4 assembled.
  • 6-8 are schematic views of the assembly of the silicone sealing ring in different embodiments.
  • Figure 9 is a schematic perspective view of the shrink band.
  • Figure 10 is a partial cross-sectional structural view of the shrink band and the silicone sealing ring assembled.
  • Figure 11 is a schematic perspective view of a metal wire.
  • 1 is the cover
  • 2 is a large body
  • 2.1 is a large body opening
  • 3 is a silicone sealing ring
  • 3.1 is a beveled edge
  • 4 is a thermostat assembly
  • 5 is a heating element
  • 5.1 is a fixed side
  • 6 is a buckle
  • 6.1 is a first buckle 6.2 is the second buckle
  • 6.3 is the protrusion
  • 7 is the top ring
  • 8 is the bottom cover
  • 9 is the power supply cover
  • 10 is the coupler
  • 11 is the power supply lower cover
  • 12 is the steam passage
  • 13 is the handle
  • 14 For the switch button, 61 is a shrink band and 62 is a metal wire.
  • the sealing structure of the electric kettle includes a large body 2 with a handle 13 and a bottom cover 8 thereof.
  • the handle 13 and the body 2 are provided separately, and the handle 13 and the body 2 are disposed between
  • the steam passage 12 communicates with the inner cavity of the body 2, and the body 2 is made of glass.
  • the handle 13 is provided with a cover body 1 hingedly fixed thereto, and the cover body 1 is rotatably connected to the body 2.
  • the heating element 5 is provided in the body 2, and the heating element 5 is a heating disk.
  • the bottom cover 8 is provided with a thermostat assembly 4, a switch button 14, and a power connection assembly electrically connected to the heat generating component 5.
  • the power connection assembly is movably connected to the bottom cover 8, and the power connection assembly is assembled by the power supply upper cover 9 and the power supply lower cover 11.
  • a coupler 10 is disposed between the power supply upper cover 9 and the power supply lower cover 11, and the coupler 10 is electrically connected to the switch button 14, and the switch button 14 controls the opening and closing of the heat generating component 5.
  • the body 2 corresponding to the heating element 5 is provided with an outwardly extending large body opening 2.1.
  • the large body opening 2.1 is provided with a sealing member at the junction with the heating element 5, as shown in FIG.
  • a buckle is arranged on the outer side of the sealing member, and the heating element of the buckle is fixedly connected with the body.
  • the buckle 6 is connected with the bottom cover 8 at one or more protrusions 6.3.
  • the protrusion 6.3 is serrated and is disposed around The upper part of the buckle 6 is fastened to the opening of the bottom cover 8 by the protrusion 6.3.
  • the lower portion of the buckle 6 is provided with a top ring 7, and the top ring 7 is fixedly connected to the buckle 6 and the bottom cover 8 by screws, or is lifted upward by a snap-fit connection sealing member.
  • the heating element 5 abuts against the upper surface of the top ring 7, and the top ring 7 can support the heating element 5 to prevent the heating element 5 from being compressed by water gravity during boiling.
  • the heating element 5 is sealed to the body 2 by a sealing member, and the purpose thereof is to improve the sealing performance of the electric kettle, and to effectively prevent problems such as poor sealing, misalignment, product leakage and water seepage, and improve the quality of the product.
  • the sealing member is a silicone sealing ring 3, and the silicone sealing ring 3 is provided with a beveled edge 3.1.
  • the heating element 5 is provided with a fixed edge 5.1 which can be bent and opened corresponding to the silicone sealing ring 3, and the fixed side 5.1 is disposed around the lower part of the heating element 5.
  • the silicone sealing ring 3 is first sleeved on the heating element 5 from top to bottom, and an external force is applied to the fixed side 5.1 of the heating element 5 to be bent and deformed and fixed with the oblique side 3.1 to achieve heat generation.
  • the element 5 is fixedly connected to the silicone sealing ring 3.
  • the inner wall of the silicone sealing ring 3 and the outer wall of the heating element 5 form an opening portion with an opening upward, and the large body opening 2.1 of the large body 2 is inserted into the inlaid portion, and the silicone sealing ring 3 covers the lower portion of the large body 2.
  • the outer wall of the silicone sealing ring 3 and the buckle 6 abut each other.
  • the buckle 6 includes a first buckle 6.1 and a second buckle 6.2.
  • the first buckle 6.1 and the second buckle 6.2 are fastened together and fixed together.
  • a circular ring is that the silicone sealing ring 3, the heating element 5 and the large body 2 are clamped and fixed between the first buckle 6.1 and the second buckle 6.2, and the first buckle 6.1 and the second buckle 6.2 are assembled during the assembly process.
  • the squeezing force is generated to cause the silicone sealing ring 3 to elastically deform, and the gap between the heating element 5 and the body 2 is filled to achieve the purpose of sealing, so as to ensure the normal use of the electric kettle, as shown in Fig. 4-5.
  • the silicone sealing ring 3 is provided with an opening portion with an opening upward, or the silicone sealing ring 3 is provided with a contact surface which is enlarged from the top to the bottom or the same as the large body opening 2.1.
  • the large body opening 2.1 on the body 2 is inserted into the inlaid portion, and the cross section of the large body opening 2.1 is linear, curved or inclined.
  • the silicone sealing ring 3 is wrapped around the lower part of the body 2 to achieve a double sealing effect of the body 2 and the heating element 5, further improving the sealing performance.
  • Other parts not described are the same as the first embodiment.
  • the outer side of the silicone sealing ring 3 is disposed as a shrink band 31 or a metal wire 32.
  • the heating element 5 is fixedly connected to the body 2, and the shrink band 61 or the metal wire 62 is a circle with an opening.
  • the end of the ring, the shrink band or the metal wire is tightened and together form a closed circular, circular or elliptical shape; the silicone sealing ring 3, the heating element 5 and the body 2 are clamped and fixed to the shrink band 61.
  • Between the metal wires 62, the shrink band 61, or the metal wire 62 is provided with a connecting portion and a buckle 6 connected to the fixed sealing member for upward lifting, and other portions not described are the same as the first embodiment.

Abstract

电热水壶的密封结构，包括带有把手（13）的大身（2）及其底盖（8），大身（2）内设置有发热元件（5）。大身（2）对应于发热元件（5）设置有大身开口（2.1），该大身开口（2.1）与发热元件（5）相连接处设置有密封部件，密封部件或大身（2）外侧设置有扣环（6），扣环（6）固定发热元件（5）与大身（2）为密封连接。或者密封部件或大身（2）外侧设置有收缩带（61），或金属扎丝（62）固定发热元件（5）与大身（2）为密封连接。密封部件设置有开口向上的镶嵌部，或者密封部件的内壁与发热元件（5）的外壁形成一开口向上的镶嵌部，或者密封部件接触面与大身开口（2.1）的横截面挤压变形相配合。上述密封部件外侧设置有扣环（6）、收缩带（61）或金属扎丝（62）实现发热元件（5）与大身（2）密封连接，保证发热元件（5）与大身（2）连接的紧密性，有效防止密封不严和渗水问题。

Description

电热水壶的密封结构 电热水壶的密封结构
技术领域
本发明涉及一种电热水壶，特别是一种电热水壶的密封结构。
背景技术
电水壶是常用的小家电之一，用于对水进行加热，同时又可作为水的容器，具有使用方便的特点。电水壶的壶底设有电加热装置，较早以前，该加热装置为一电热管，自容器底部向上凸伸于容器内，以对容器内的水进行加热，由于作为发热部件的电热管完全裸露于水中，容易因受到腐蚀而生锈，最后损坏而无法使用，并且影响卫生。
针对上述问题，业内的设计者设计出了加热面为平面状的电加热装置，其平面状的加热面形成加热容器的底部，直接与水接触对其进行加热。因此，电加热装置和容器之间的密封性为体现电水壶性能的关键因素之一。现有技术中一般在加热装置周缘顶面与该凸环底面之间设一密封圈，并于轴向上设置一个可压缩的弹簧装置，该弹簧装置在轴向上施加一个由下向上使密封圈压缩以达到密封的作用力。在煮水过程中可能会出现弹簧受水重力被压缩，造成密封不紧出现漏水情况，同时该结构的装配难度大，成本偏高。有必要作进一步改进和完善。
发明内容
本发明的目的旨在提供一种结构简单合理、安全可靠、装配简便和密封效果好的电热水壶的密封结构，以克服现有技术中的不足之处。
按此目的设计的一种电热水壶的密封结构，包括带有把手的大身及其底盖，大身内设置有发热元件，其结构特征是所述所述大身对应发热元件设置有大身开口，该大身开口与发热元件相连处设置有密封部件，密封部件或大身外侧设置有扣环，扣环固定发热元件与大身为密封连接；或者密封部件或大身外侧设置有收缩带、或金属扎丝固定发热元件与大身为密封连接；密封部件设置有开口向上的镶嵌部、或者硅胶密封圈的内壁与发热元件的外壁形成一开口向上的镶嵌部、或密封部件接触面与大身开口的横截面挤压变形相配合。
所述密封部件包括硅胶密封圈，硅胶密封圈上设置有斜边，发热元件对应硅胶密封圈设置有可弯折开合的固定边，该固定边环绕设置于发热元件的下部；硅胶密封圈套设于发热元件上，且与固定边配合固定。
所述大身上的大身开口插入镶嵌部内，硅胶密封圈包裹或覆盖于大身的下部；硅胶密封圈的外壁与扣环相互抵靠，大身开口的横截面呈直线形、弯折形或倾斜形。
所述扣环包括第一扣环和第二扣环，第一扣环和第二扣环相互扣合固定或卡接固定，且共同围成一圆环形、圆形或椭圆形，或者扣环为设置有开口的圆环形；硅胶密封圈、发热元件和大身夹持固定于第一扣环及第二扣环之间。所述扣环与底盖相连处设置有一个以上的凸起，该凸起呈锯齿状，其环绕设置于扣环的上部；扣环的下部设置有顶圈，发热元件与顶圈的上表面相抵靠，该发热元件为发热盘。
所述收缩带、或金属扎丝呈带有开口的圆环状，收缩带或金属扎丝的两端收紧且共同围成一封闭的圆环形、圆形或椭圆形；硅胶密封圈、发热元件和大身夹持固定于收缩带、或金属扎丝之间。
所述底盖上设置有与发热元件电连接的温控器组件、开关按键和电源连接组件；电源连接组件与底盖活动连接；电源连接组件包括电源上盖和电源下盖，电源上盖与电源下盖之间设置有耦合器。
把手与大身为一体设置或分体设置，把手与大身之间设置有蒸汽通道，蒸汽通道与大身的内腔相连通，大身的材质为玻璃制件或陶瓷制件；把手上设置有与之铰接固定的盖体。
本发明的发热元件上增设密封部件，密封部件外侧设置有扣环、收缩带或金属扎丝，以实现发热元件与大身密封连接，通过第一扣环和第二扣环在装配过程中产生挤压力，促使硅胶密封圈发生弹性变形，将发热元件和大身之间的缝隙填满，从而达到封闭的目的；硅胶密封圈、发热元件和大身夹持固定于收缩带、或金属扎丝之间，确保发热元件与大身连接的紧密性，有效防止密封不严、错位、产品漏水和渗水等问题，提高了产品的质量；同时其具有结构简单合理、使用寿命长、成本低廉、适用范围广和便于加工生产的特点。
附图说明
图1为本发明的一实施例分解结构示意图。
图2为硅胶密封圈、发热盘、扣环、顶圈和密封部件装配示意图。
图3为图1组装后的剖视结构示意图。
图4为图3中的A处放大结构示意图。
图5为图4中的发热盘与硅胶密封圈装配后的结构示意图。
图6－图8为不同实施例中硅胶密封圈装配示意图。
图9为收缩带的立体结构示意图。
图10为收缩带与硅胶密封圈组装后的局部剖视结构示意图。
图11为金属扎丝的立体结构示意图。
图12为金属扎丝与硅胶密封圈组装后的局部剖视结构示意图。
图中：1为盖体， 2为大身，2.1为大身开口，3为硅胶密封圈，3.1为斜边，4为温控器组件，5为发热元件，5.1为固定边，6为扣环，6.1为第一扣环，6.2为第二扣环，6.3为凸起，7为顶圈，8为底盖，9为电源上盖，10为耦合器，11为电源下盖，12为蒸汽通道，13为把手，14为开关按键，61为收缩带，62为金属扎丝。
具体实施方式
下面结合附图及实施例对本发明作进一步描述。
第一实施例
参见图1-图5，本电热水壶的密封结构，包括带有把手13的大身2及其底盖8，把手13与大身2为分体设置，把手13与大身2之间设置有蒸汽通道12，蒸汽通道12与大身2的内腔相连通，大身2的材质为玻璃制件。把手13上设置有与之铰接固定的盖体1，盖体1与大身2转动连接。大身2内设置有发热元件5，发热元件5为发热盘。底盖8上设置有与发热元件5电连接的温控器组件4、开关按键14和电源连接组件。电源连接组件与底盖8活动连接，电源连接组件由电源上盖9和电源下盖11装配而成。电源上盖9与电源下盖11之间设置有耦合器10，耦合器10与开关按键14电连接，开关按键14控制发热元件5的打开和关闭。
大身2对应发热元件5设置有向外延伸的大身开口2.1。该大身开口2.1与发热元件5相连处设置有密封部件，见图3。密封部件外侧设置有扣环，扣环固定发热元件与大身为密封连接，扣环6与底盖8相连处设置有一个以上的凸起6.3，该凸起6.3呈锯齿状，其环绕设置于扣环6的上部，扣环6通过凸起6.3固定于的底盖8开口处。扣环6的下部设置有顶圈7，顶圈7与扣环6和底盖8通过螺钉固定连接,或通过卡扣固定连接密封部件向上提升。发热元件5与顶圈7的上表面相抵靠，顶圈7可以对发热元件5起到支撑作用，避免发热元件5在煮水过程中受水重力被压缩。发热元件5通过密封部件与大身2为密封连接，其目的在于：提高电热水壶的密封性能，可以有效防止密封不严、错位、产品漏水和渗水等问题，提高了产品的质量。
密封部件为硅胶密封圈3，硅胶密封圈3上设置有斜边3.1。发热元件5对应硅胶密封圈3设置有可弯折开合的固定边5.1，该固定边5.1环绕设置于发热元件5的下部。装配时，先将硅胶密封圈3从上往下套设于发热元件5上，通过对发热元件5上的固定边5.1施加外力，使其弯折变形并与斜边3.1配合固定，以实现发热元件5与硅胶密封圈3固定连接。
硅胶密封圈3的内壁与发热元件5的外壁形成一开口向上的镶嵌部，大身2上的大身开口2.1插入镶嵌部内，硅胶密封圈3覆盖于大身2的下部。硅胶密封圈3的外壁与扣环6相互抵靠，扣环6包括第一扣环6.1和第二扣环6.2，第一扣环6.1和第二扣环6.2相互扣合固定，且共同围成一圆环形。其目的在于：硅胶密封圈3、发热元件5和大身2夹持固定于第一扣环6.1及第二扣环6.2之间，通过第一扣环6.1和第二扣环6.2在装配过程中产生挤压力，促使硅胶密封圈3发生弹性变形，将发热元件5和大身2之间的缝隙填满，从而达到封闭的目的，以保证电热水壶的正常使用，见图4－图5。
第二实施例
参见图6－图8，硅胶密封圈3上设置有开口向上的镶嵌部，或者硅胶密封圈3设有由上至下渐大或等大的接触面与大身开口2.1相配合。大身2上的大身开口2.1插入镶嵌部内，大身开口2.1的横截面呈直线形、弯折形或倾斜形。硅胶密封圈3包裹于大身2的下部，实现大身2和发热元件5双层密封效果，进一步提高密封性能。其它未述部分同第一实施例。
第三实施例
参见图9-图12，所述硅胶密封圈3外侧设置成收缩带31或金属扎丝32固定发热元件5与大身2为密封连接，收缩带61或金属扎丝62呈带有开口的圆环状，收缩带或金属扎丝的两端收紧且共同围成一封闭的圆环形、圆形或椭圆形；硅胶密封圈3、发热元件5和大身2夹持固定于收缩带61、或金属扎丝62之间，收缩带61、或金属扎丝62设置有连接部与扣环6连接固定密封部件向上提升，其它未述部分同第一实施例。

Claims (9)

  1. 一种电热水壶的密封结构，包括带有把手（13）的大身（2）及其底盖（8），大身内设置有发热元件（5），其特征是所述大身对应发热元件设置有大身开口（2.1），该大身开口与发热元件相连处设置有密封部件，密封部件或大身外侧设置有扣环，扣环固定发热元件与大身为密封连接；或者密封部件或大身外侧设置有收缩带（61）、或金属扎丝（62）固定发热元件与大身为密封连接；密封部件设置有开口向上的镶嵌部、或者硅胶密封圈的内壁与发热元件（5）的外壁形成一开口向上的镶嵌部、或密封部件接触面与大身开口的横截面挤压变形相配合。
  2. 根据权利要求1所述电热水壶的密封结构，其特征是所述密封部件包括硅胶密封圈（3），硅胶密封圈上设置有斜边（3.1），发热元件（5）对应硅胶密封圈设置有可弯折开合的固定边（5.1），该固定边环绕设置于发热元件的下部；硅胶密封圈套设于发热元件上，且与固定边配合固定。
  3. 根据权利要求2所述电热水壶的密封结构，其特征是所述大身（2）上的大身开口（2.1）插入镶嵌部内，硅胶密封圈包裹或覆盖于大身的下部；硅胶密封圈的外壁与扣环相互抵靠，大身开口的横截面呈直线形、弯折形或倾斜形。
  4. 根据权利要求1-3任一所述电热水壶的密封结构，其特征是所述扣环（6）包括第一扣环（6.1）和第二扣环（6.2），第一扣环和第二扣环相互扣合固定或卡接固定，且共同围成一圆环形、圆形或椭圆形，或者扣环（6）为设置有开口的圆环形；硅胶密封圈（3）、发热元件（5）和大身（2）夹持固定于第一扣环及第二扣环之间。
  5. 根据权利要求4所述电热水壶的密封结构，其特征是所述扣环（6）与底盖（8）相连处设置有一个以上的凸起（6.3），该凸起呈锯齿状，其环绕设置于扣环的上部；扣环的下部设置有顶圈（7），发热元件（5）与顶圈的上表面相抵靠，该发热元件为发热盘。
  6. 根据权利要求5所述电热水壶的密封结构，其特征是所述收缩带（61）、或金属扎丝（62）呈带有开口的圆环状，收缩带或金属扎丝的两端收紧且共同围成一封闭的圆环形、圆形或椭圆形；硅胶密封圈（3）、发热元件（5）和大身（2）夹持固定于收缩带、或金属扎丝之间。
  7. 根据权利要求6所述电热水壶的密封结构，其特征是所述底盖（8）上设置有与发热元件（5）电连接的温控器组件（4）、开关按键（14）和电源连接组件；电源连接组件与底盖活动连接；电源连接组件包括电源上盖（9）和电源下盖（11），电源上盖与电源下盖之间设置有耦合器（10）。
  8. 根据权利要求7所述电热水壶的密封结构，其特征是所述把手（13）与大身（2）为一体设置或分体设置，把手与大身之间设置有蒸汽通道（12），蒸汽通道与大身的内腔相连通，大身的材质为玻璃制件或陶瓷制件；把手上设置有与之铰接固定的盖体（1）。
  9. 根据权利要求5所述电热水壶的密封结构，其特征是所述收缩带（61）、或金属扎丝（62）、或扣环（6）与顶圈（7）固定密封部件向上提升，密封部件设有由上至下渐大或等大的接触面与大身开口的相配合,组成一个底部加热的防漏大身。
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