CN215909431U

CN215909431U - Inner container assembly for electric water heater and electric water heater

Info

Publication number: CN215909431U
Application number: CN202121301282.0U
Authority: CN
Inventors: 赵雪森; 管江勇; 郑涛; 蔡想周; 杜天海; 赵峰; 牟星宇; 曹冠忠; 郝歆; 于宗超; 侯艳; 孙强
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2020-12-25
Filing date: 2021-06-11
Publication date: 2022-02-25
Anticipated expiration: 2031-06-11
Also published as: CN114688731A; CN216557650U; CN114688730A; CN114688732A

Abstract

The utility model discloses an inner container component for an electric water heater and the electric water heater, wherein the inner container component comprises: the water storage tank comprises a tank body, a water storage tank and a water storage tank, wherein the tank body is used for storing water and is provided with an installation opening; the ceramic electric heating module comprises an outer sleeve and a ceramic heating core, wherein a first end part of the outer sleeve is of a closed structure, and the ceramic heating core is arranged in the outer sleeve; the ceramic heating core comprises a mounting seat, an insulating core body, an electric heating wire and a pull rod, wherein the insulating core body comprises a plurality of sections of sub-core bodies, the mounting seat and the plurality of sections of sub-core bodies are connected together through the pull rod, and the electric heating wire is arranged on the insulating core body; wherein, the outer tube stretches into the container body through the installing opening, and the outer tube and the installing opening are connected together in a sealing manner. The processing difficulty of the ceramic heating core is reduced, and the use reliability of the electric water heater is improved.

Description

Inner container assembly for electric water heater and electric water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to an inner container assembly for an electric water heater and the electric water heater.

Background

At present, water heaters are household appliances commonly used in daily life of people, and the water heaters are divided into electric water heaters and gas water heaters according to different heating sources. The electric water heater is widely used due to the convenient installation. An electric water heater generally includes an inner container and an electric heater disposed in the inner container to heat water in the inner container by the electric heater.

In the prior art, the ceramic heating pipe technology is gradually popularized in electric water heaters, for example, chinese patent application No. 201210208328.3 discloses a novel spiral pipe type forced circulation electric heater, which adopts a ceramic heating pipe to heat water in a water tank of a water heater. The ceramic heating pipe needs to be inserted into the pipe body, and the outer end part of the ceramic heating pipe needs to be connected with the corresponding end part of the pipe body. However, since the ceramic heating tube is made of ceramic materials, the ceramic heating tube is easy to bend and has poor straightness due to long length in the processing process, so that the distance between the ceramic heating tube and the inner wall of the external tube body is small and the use reliability of the electric heater is reduced.

Therefore, how to design a ceramic electric heating technology which reduces the processing difficulty and improves the use reliability is the technical problem to be solved by the utility model.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inner container assembly for an electric water heater and the electric water heater, which can reduce the processing difficulty of a ceramic heating core and improve the use reliability of the electric water heater.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

in one aspect, the present invention provides a bladder assembly for an electric water heater, comprising:

the water storage tank comprises a tank body, a water storage tank and a water storage tank, wherein the tank body is used for storing water and is provided with an installation opening;

the ceramic electric heating module comprises an outer sleeve and a ceramic heating core, wherein a first end part of the outer sleeve is of a closed structure, and the ceramic heating core is arranged in the outer sleeve; the ceramic heating core comprises a mounting seat, an insulating core body, an electric heating wire and a pull rod, wherein the insulating core body comprises a plurality of sections of sub-core bodies, the mounting seat and the plurality of sections of sub-core bodies are connected together through the pull rod, and the electric heating wire is arranged on the insulating core body;

wherein, the outer tube stretches into the container body through the installing opening, and the outer tube and the installing opening are connected together in a sealing manner.

In an embodiment of the present application, the container body is transversely arranged, the outer cannula is transversely arranged in the container body, and the outer cannula extends upwards towards the inner direction of the container body from the mounting opening.

In one embodiment of the application, a protruding portion is arranged at one end portion of the liner body, and the mounting opening is formed in the protruding portion.

In an embodiment of the present application, the outer periphery of the second end portion of the outer sleeve is provided with an external thread, and the outer sleeve is screwed in the mounting opening.

In one embodiment of the application, the welding has the connecting seat on the bellying, the connecting seat is inserted in the installing port, be provided with the internal thread hole on the connecting seat, outer tube threaded connection is in on the connecting seat.

In an embodiment of the application, the mounting seat is provided with a first through hole, the sub-core is provided with a second through hole, the insulating core is arranged on the mounting seat, and the pull rod penetrates through the first through hole and the second through hole and connects the mounting seat and the insulating core together.

In an embodiment of the present application, the ceramic heating core further includes a positioning block, the positioning block is provided with a third through hole, the pull rod sequentially passes through the first through hole, the second through hole and the third through hole, and the pull rod sequentially connects the mounting seat, the insulating core body and the positioning block together.

In an embodiment of the application, the inner wall of the enclosed construction that the first end of outer tube formed is the cambered surface, be provided with on the locating piece with cambered surface complex locating surface, the locating surface supports and leans on the cambered surface.

In an embodiment of the present application, one end surface of the sub-core is provided with a positioning protrusion, and the other end surface is provided with a positioning groove; the positioning protrusion on one of the sub-cores is inserted into the positioning groove on the other sub-core.

In an embodiment of the present application, the second end of the outer sleeve is provided with an outward flange, and the outward flange is provided with a first connection hole; the inner container assembly for the electric water heater further comprises a connecting piece, one end of the connecting piece is provided with a pressing part, and the other end of the connecting piece is provided with a second connecting hole; the compressing portion abuts against the end portion of the ceramic heating core, and a bolt penetrates through the first connecting hole and the second connecting hole and is in threaded connection with a fastening nut.

The utility model also provides an electric water heater which comprises a shell, wherein the inner container adopts the inner container assembly, and the inner container is arranged in the shell.

Compared with the prior art, the utility model has the advantages and positive effects that: through adopting sectional type design with ceramic heating core, the length of every sub-core is less, and then makes the sub-core can have higher straightness accuracy in the course of working, simultaneously, a plurality of sub-cores link together through the pull rod, can in the assembling process, keep coaxial whole straightness accuracy of guaranteeing the insulating core through adjusting each sub-core, and then guarantee ceramic electric heating module's processing and equipment quality, realize reducing the processing degree of difficulty of ceramic heating core to improve electric water heater's use reliability.

In addition, set up the ceramic electric heating module that the slope arranged up in the courage body, on the one hand make ceramic electric heating module and the internal water of courage have bigger heat transfer area, in order to satisfy the requirement of hot water output rate, on the other hand is in the use, because the outer tube slope arranges up, so that the water that congeals that forms in the outer tube is along the smooth and easy outflow of its inner wall under the action of gravity, in order to avoid congealing water contact ceramic heating core, and then improve and use the reliability, the realization satisfies the requirement that the water heater adopts horizontal water tank to adopt the inner bag subassembly to carry out the heating, in order to increase the application range of inner bag subassembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a liner assembly according to an embodiment of the present invention;

FIG. 2 is a second schematic structural view of a liner assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the liner assembly of FIG. 2;

FIG. 4 is an enlarged view of a portion of area A of FIG. 3;

FIG. 5 is a schematic structural diagram of a ceramic electric heating module according to an embodiment of the electric water heater of the present invention;

FIG. 6 is a cross-sectional view of the ceramic electric heating module of FIG. 5;

FIG. 7 is a second schematic structural view of a ceramic electric heating module in an embodiment of the electric water heater of the present invention;

FIG. 8 is a schematic structural view of the connector of FIG. 7;

FIG. 9 is a cross-sectional view of the ceramic electric heating module of FIG. 7;

FIG. 10 is an enlarged partial view of the area B in FIG. 9;

figure 11 is a schematic structural view of the ceramic heating core of figure 7.

Reference numerals:

a liner body 1;

a convex part 11 and a connecting seat 12;

a ceramic electric heating module 2;

the outer sleeve 21, the ceramic heating core 22, the sealing ring 23 and the connecting piece 24;

flanging 211 and cambered surface 212;

a first connection hole 2111;

positioning notch 220, mounting seat 221, insulating core 222, pull rod 223 and positioning block 224;

sub-core 2221, positioning projection 2222, positioning groove 2223, tightening end 2231, and positioning surface 2241;

a second coupling hole 240, a pressing plate 241, a coupling plate 242, a fixing plate 243, and a flange 244;

a temperature sensing module 3;

a heat pipe 31 and a temperature sensing probe 32;

a water inlet pipe 101 and a water outlet pipe 102.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The electric water heater adopts electric energy as a main energy material, and high-temperature heat generated after electrification directly heats water stored in the electric water heater so as to achieve the purpose of preparing hot water.

The electric water heater generally comprises a water tank, an electric heating part, an electric control device and the like, wherein a water storage cavity is formed in the water tank to store water to be heated, the electric heating part is inserted into the water storage cavity formed in the water tank, and the electric control device is used for controlling the electric heating part to be powered on and powered off to operate so as to heat the water in the water tank to a set temperature.

For a water tank of an electric water heater, the water tank generally comprises an outer shell and an inner container, and an insulating layer is formed between the outer shell and the inner container. Wherein, the shell is generally made of plastic materials to meet the design requirements of beautiful and diversified shapes; the inner container can be a metal container body or a plastic container body according to requirements.

In addition, the heat preservation layer formed between shell and the inner bag, commonly used heat preservation material have: asbestos, sponge, foam plastic, polyurethane foam and the like, and in order to obtain a good heat preservation effect in the conventional technology, a foaming mode is usually adopted to form a heat preservation layer.

Wherein, for the inner bag that adopts the metal courage body, because influenced by water quality, the inside of inner bag corrodes easily, for this reason, still dispose the magnesium stick on the water tank, the magnesium stick inserts in the inside water storage cavity of water tank.

Magnesium is the lowest potential metal in the electrochemical series and is physiologically nontoxic. Therefore, the magnesium rod protective liner is very ideal. The size of the magnesium rod is directly related to the length of the time for protecting the inner container and the size of the protection effect, and the larger the magnesium rod is, the better the protection effect is and the longer the protection time is.

For the electric heating part, an electric heating mode such as an electric heating wire, magnetic energy or silicon tube heating can be adopted to heat the water stored in the water storage cavity.

The electric heating part in the utility model adopts a ceramic electric heating module to heat water, and the following description is provided with the accompanying drawings.

In a first embodiment, as shown in fig. 1 to 11, the present embodiment provides a liner assembly, including:

the water storage tank comprises a tank body 1, wherein the tank body 1 is used for storing water, and an installation opening (not marked) is formed in the tank body 1;

the ceramic electric heating module 2 comprises an outer sleeve 21 and a ceramic heating core 22, wherein the first end part of the outer sleeve 21 is of a closed structure, and the ceramic heating core 22 is arranged in the outer sleeve 21;

wherein, the outer sleeve 21 extends into the liner body 1 through the mounting opening, and the outer sleeve 21 and the mounting opening are connected together in a sealing manner.

Specifically, the inner container assembly contains water to be heated through the inner container body 1, wherein the inner container body 1 is provided with a water inlet pipe 101 and a water outlet pipe 102 which extend to the inside of the inner container body 1, cold water enters the inner container body 1 through the water inlet pipe 101, and heated hot water is output from the water outlet pipe 102.

In order to heat the water in the liner body 1, a ceramic electric heating module 2 is disposed in the liner body 1, the ceramic electric heating module 2 generates heat by using a ceramic heating core 22, and an outer sleeve 21 is sleeved outside the ceramic heating core 22 to protect the ceramic heating core 22 through the outer sleeve 21.

Wherein, the outer tube 21 adopts heat conduction materials such as copper aluminium to make to still have better heat conductivity when satisfying protection ceramic heating core 22, and then ensure that the heat that ceramic heating core 22 produced transmits the water in the courage body 1 fast via outer tube 21.

For the ceramic heating core 22, in order to reduce the processing difficulty and the manufacturing cost, as shown in fig. 9, the ceramic heating core 22 includes a mounting seat 221, an insulating core 222, an electric heating wire (not shown) and a pull rod 223, the mounting seat 221 is provided with a first through hole (not marked), the insulating core 222 is provided with a second through hole (not marked), the insulating core 222 includes a multi-segment core 2221, the mounting seat 221 and the multi-segment core 2221 are connected together by the pull rod, and the electric heating wire is disposed on the insulating core 222.

Specifically, the insulating core 222 in the ceramic heating core 22 may be assembled by a multi-segment sub-core 2221, the sub-core 2221 is made of a ceramic material by sintering, and the mounting seat 221 is made of a heat-resistant insulating material, such as: ceramic materials may also be used.

The insulating core 222 and the mounting seat 221 are connected by a pull rod 223, the multi-segment core 2221 and the mounting seat 221 are both inserted into the pull rod 223, and the multi-segment core 2221 is tightened and fixedly mounted on the mounting seat 221 by the pull rod 223.

Through adopting sectional type design with ceramic heating core, the length of every sub-core is less, and then makes the sub-core can have higher straightness accuracy in the course of working, simultaneously, a plurality of sub-cores link together through the pull rod, can in the assembling process, keep coaxial whole straightness accuracy of guaranteeing the insulating core through adjusting each sub-core, and then guarantee ceramic electric heating module's processing and equipment quality, realize reducing the processing degree of difficulty of ceramic heating core to improve electric water heater's use reliability.

In one embodiment, since the insulating core 222 of the ceramic heating core 22 needs to be wound with an electric heating wire, in order to facilitate accurate winding of the electric heating wire, it is necessary to accurately align the respective sub-cores 2221, and for this reason, as shown in fig. 11, one end surface of the sub-core 2221 is provided with a positioning protrusion 2222, and the other end surface is provided with a positioning groove 2223; two adjacent sub-cores 2221, positioning protrusions 2222 of one sub-core 2221 are inserted into positioning grooves 2223 of the other sub-core 2221.

Specifically, during the process of assembling the ceramic heating core 22, an assembling worker positions the two sub-cores 2221 assembled together by the positioning protrusions 2222 and the positioning grooves 2223, so that the insulating core 222 can form a groove body regularly arranged to accommodate an electric heating wire.

In some embodiments, mount 221 is provided with a first through-hole (not labeled), sub-core 2221 is provided with a second through-hole (not labeled), and tie rod 223 passes through the first and second through-holes and connects mount 221 and insulating core 222 together.

One end of the pull rod 223 can be provided with a tightening end 2231, the tightening end 2231 abuts against the insulating core 222, the other end of the pull rod 223 is in threaded connection with a lock nut, and the lock nut abuts against the outside of the mounting seat 221, so that the insulating core 222 and the mounting seat 221 are fixedly connected together. Then, the mounting seat 221 is connected and fixed with the outer sleeve 21, wherein the mounting seat 221 is provided with a positioning notch 220 in a manner of connecting with the outer sleeve 21.

On the one hand, the pull rod 223 can realize the connection between the insulating core 222 and the mounting seat 221, and on the other hand, the pull rod 223 can perform a structural reinforcement function on the insulating core 222 inside the insulating core 222, so as to effectively improve the structural strength of the insulating core 222 arranged on the mounting seat 221 in a suspended manner. In the transportation process, because the insulation core 222 is supported by the effective support columns of the pull rods 223 in the insulation core 222, the collision between the insulation core 222 and the outer sleeve 21 caused by vibration can be effectively reduced, and the reliability is further improved.

In a preferred embodiment, as shown in fig. 9 and 10, in order to better protect the insulating core 222, the heating core includes a positioning block 224, the positioning block 224 is provided with a third through hole (not labeled), a pull rod 223 sequentially passes through the third through hole, the second through hole and the first through hole, and a tightening tip 2231 abuts against the positioning block 224.

Specifically, the suspending end of the insulating core 222 is provided with a positioning block 224, and the tightening tip 2231 of the pull rod 223 abuts against the positioning block 224, so that the positioning block 224 bears the pressure generated by the tightening tip 2231. For the insulating core 222, since the contact area between the positioning block 224 and the insulating core 222 is large, the insulating core 222 can be prevented from being damaged by the tightening end 2231 during the process of tightening the locking nut, so as to improve the assembling reliability.

Further, the tie rod 223 may be provided with a threaded portion at each end portion, and the tie rod 223 may be screwed to the positioning block 224.

Further, in order to more accurately and reliably mount the ceramic heating core 22, the ceramic heating core 22 may be further positioned and supported by the free end portion of the outer sheath 21.

The method specifically comprises the following steps: the inner wall of the closed structure formed by the first end of the outer sleeve 21 is an arc surface 212, a positioning surface 2241 matched with the arc surface 212 is arranged on the positioning block 224, and the positioning surface 2241 abuts against the arc surface 212.

Specifically, after the ceramic heating core 22 is assembled, the ceramic heating core 22 can be installed in the outer sleeve 21, and after the ceramic heating core 22 is assembled in place, the positioning surface 2241 on the positioning block 224 will contact the arc surface 212 formed at the free end of the outer sleeve 21.

Because the arc surface 212 has the function of automatic centering, the ceramic heating core 22 can be accurately installed in place, on one hand, the space between the ceramic heating core 22 and the inner wall of the outer sleeve 21 can be kept in an accurate range, and on the other hand, the free end of the ceramic heating core 22 is positioned and supported by the arc surface 212 of the outer sleeve 21, which is more beneficial to improving the shock resistance of the ceramic heating core 22.

It is preferable that the arc surface 212 is a semi-spherical surface, and the positioning surface 2241 is provided with a chamfer on the edge of the positioning block 224.

In the preferred embodiment, the ceramic electric heating module 2 also extends into the liner body 1 from the mounting opening provided at the end of the liner body 1 in a transversely-arranged manner with respect to the liner body 1. In order to reduce the damage of the ceramic heating core caused by the condensed water generated by the alternation of cold and heat in the air in the outer sleeve 21 in the using process, for the ceramic electric heating module 2, the outer sleeve 21 is transversely arranged in the liner body 1, and the outer sleeve 21 extends upwards in an inclined way along the direction from the outside to the inside of the liner body 1.

Specifically, in order to improve the heating efficiency and the use reliability, the ceramic electric heating module 2 is arranged in the transversely arranged liner body 1 in an inclined manner. And, ceramic electric heating module 2 upwards extends at the slope in courage body 1, like this, alright increase the length of arranging of ceramic electric heating module 2 in courage body 1, and then improve heating efficiency to satisfy the requirement of hot water output rate.

In addition, because the ceramic electric heating module 2 is installed on the liner body 1 in a manner of extending obliquely upwards, in the using process, after the air containing moisture outside enters the outer sleeve 21 and is condensed to form condensed water, the condensed water flows downwards along the inner pipe wall of the outer sleeve 21 under the action of gravity and finally flows out. Thus, the water drops formed in the outer sleeve 21 can be effectively reduced from falling onto the ceramic heating core 22 to damage the high-temperature ceramic heating core 22, and the use reliability is improved.

In the actual use process, the ceramic electric heating module 2 can be used in the horizontal transversely-placed liner body 1 so as to meet the use requirement that the horizontal-placed liner body 1 adopts the ceramic electric heating module 2 to realize heating, and further improve the use reliability.

In one embodiment, a protruding portion 11 is disposed at one end of the container body 1, and the mounting opening is disposed on the protruding portion 11.

Specifically, in order to facilitate installation of the ceramic electric heating module 2, a protruding portion 11 is provided at an end portion of the liner body 1, and the protruding portion 11 may be formed on the end socket of the liner body 1 by means of stamping or the like. Generally, the end socket of the transversely arranged liner body 1 is an arc surface, and the protruding portion 11 protrudes out of the arc end surface of the end socket of the liner body 1, so that a relatively flat mounting end surface can be formed on the protruding portion 11, and meanwhile, the mounting opening is formed in the upper opening of the protruding portion 11, so that the ceramic electric heating module 2 can be conveniently inserted into the mounting opening to be mounted and fixed on the protruding portion 11 of the liner body 1.

In one embodiment, the outer sleeve 21 and the liner 1 are connected to improve the sealing performance. A sealing ring 23 is arranged between the second end of the outer sleeve 21 and the boss 11.

Specifically, the seal ring 23 seals a connection portion formed between the outer tube 21 and the liner body 1, thereby improving the overall sealing performance.

Wherein, the second end of the outer sleeve 21 is provided with a flanging 211, and the sealing ring 23 is clamped between the flanging 211 and the boss 11. The gasket 23 is interposed between the flange 211 and the boss 11, and a joint portion formed between the outer tube 21 and the container body 1 is sealed by the gasket 23.

In some embodiments, in order to realize that the outer sleeve 21 extends obliquely upwards towards the inner side of the container body 1, at least two structural designs can be adopted.

In the first mode, the outer sleeve 21 is installed obliquely by designing the installation end face formed by the boss 11 as an inclined face, that is, the installation end face is arranged obliquely with respect to the horizontal center line of the container body 1.

Specifically, when the ceramic electric heating module 2 is installed, the ceramic electric heating module 2 is installed obliquely through the obliquely arranged installation end face, so that the ceramic electric heating module 2 obliquely and upwards extends into the container body 1 along the tax receipt central line of the container body 1. For the installation end face, in the forming process of the liner body 1, the installation end face formed by the protruding portion 11 forms a certain inclination angle, so that when the ceramic electric heating module 2 is installed, the ceramic electric heating module 2 only needs to be installed and fixed on the protruding portion 11, and the ceramic electric heating module 2 can be arranged in the liner body 1 in an inclined and upward manner.

In a second mode, as shown in fig. 7, a second end of the outer sleeve 21 is provided with a flange 211, and an included angle is formed between a center line of the outer sleeve 21 and a perpendicular line of the flange 211.

Specifically, for the outer sleeve 21, when it is mounted and fixed, the plane formed by the flanging 211 serves as a mounting reference plane, and the center line of the outer sleeve 21 itself is arranged obliquely with respect to the plane formed by the flanging 211, that is, an acute angle is formed between the center line of the outer sleeve 21 and the perpendicular line of the flanging 211, so as to meet the requirement that the outer sleeve 21 extends obliquely upward.

In some embodiments, in order to facilitate the installation of the outer sleeve 21, an external thread (not labeled) may be provided on the outer circumference of the second end portion of the outer sleeve 21, and the installation opening, in which the outer sleeve 21 is screwed, is formed with an internal thread (not labeled).

Specifically, when an operator makes up the liner in a factory, the sealing ring 23 is firstly sleeved outside the outer sleeve 21, then the outer sleeve 21 is inserted into the mounting opening, and after the external thread of the outer sleeve 21 is in contact with the internal thread on the mounting opening, the outer sleeve 21 is rotated to enable the outer sleeve 21 to be in threaded connection with the liner body 1.

And as the outer sleeve 21 is gradually screwed down, the sealing ring 23 is squeezed between the flanging 211 and the boss 11, and finally the ceramic electric heating module 2 is assembled on the liner body 1.

In a preferred embodiment, in order to improve the connection reliability and connection strength between the outer sleeve 21 and the liner body 1, a connection seat 12 may be welded to the boss 11, and the connection seat 12 may be provided with an internal threaded hole, for the internal threaded hole formed in the liner body 1.

Specifically, form the internal thread hole on connecting seat 12, connecting seat 12 adopts welded mode fixed mounting on bellying 11, like this, alright in order to form enough long internal thread hole in order to satisfy the threaded connection's of outer tube 21 requirement through connecting seat 12 on the courage body 1, simultaneously, connecting seat 12 adopts welded mode to fix on the courage body 1 for have sufficient joint strength between connecting seat 12 and the courage body 1.

When the outer sleeve 21 needs to be assembled, the first end of the outer sleeve 21 extends into the internal threaded hole on the connecting seat 12, and then the second end of the outer sleeve 21 is matched with the internal threaded hole through external threads to realize the threaded installation of the outer sleeve 21 on the connecting seat 12. Meanwhile, the sealing ring 23 is clamped between the flanging 211 and the connecting seat 12, so that the requirement of sealing connection is met.

In other embodiments, in order to effectively improve the heating efficiency to meet the requirement of the hot water output rate, a plurality of ceramic electric heating modules 2 can be arranged in the liner body 1.

Specifically, a plurality of ceramic electric heating modules 2 are arranged in the liner body 1, so that the requirement of rapidly heating water to improve the hot water output rate can be met by heating the water through the ceramic electric heating modules 2. Wherein, a plurality of ceramic electric heating module from top to bottom arranges in proper order to the better water that carries out effectual heating in the courage body 1 in the direction of height.

In one embodiment, two ceramic electric heating modules 2 are arranged in the liner body 1, wherein one ceramic electric heating module 2 is arranged on the front side of the water outlet pipe 102, and the other ceramic electric heating module 2 is arranged on the rear side of the water outlet pipe 102.

Specifically, taking two ceramic electric heating modules 2 as an example, one of the ceramic electric heating modules 2 is arranged above the liner body 1 and close to the upper end of the water outlet pipe 102, so that water flowing into the water outlet pipe 102 can be directly heated, and the 3D heating function of the electric water heater is further satisfied.

Simultaneously, another pottery electric heating module 2 arranges in the bottom of courage body 1, utilizes the pottery electric heating module 2 of bottom to heat the water of courage body 1 bottom to realize the water of rapid heating courage body 1 bottom. After the water at the bottom of the liner body 1 is heated, the water distributed up and down in the liner body 1 can circularly flow by utilizing the principle that the specific gravity of the hot water is light, so that the efficiency of heating the water is improved.

In some embodiments, because the liner body 1 is no longer configured with a flange for connection, in order to meet the installation requirement of the temperature sensing probe in the temperature controller, an installation hole may be provided at one end of the liner body 1, and correspondingly, the liner assembly further includes: and a temperature sensing module 3.

The temperature sensing module 3 comprises a heat conducting pipe 31 and a temperature controller, the heat conducting pipe 31 is transversely arranged at one end of the liner body 1 and is hermetically inserted into the liner body 1, and a temperature sensing probe 32 of the temperature controller is positioned in the heat conducting pipe 31.

Specifically, because the ceramic electric heating module 2 is installed on the end socket of the liner body 1 in a threaded connection manner, a mounting hole is formed in the end socket, the heat conduction pipe 31 is inserted into the mounting hole in a sealing manner, the end part of the heat conduction pipe 31 located in the liner body 1 is designed in a sealing manner, the temperature sensing probe 32 is installed inside the liner body 1 through the heat conduction pipe 31, and then the temperature in the liner body 1 is detected through the temperature sensing probe 32.

In the second embodiment, there are various ways for the specific structural form of the ceramic electric heating module 2, and in order to better satisfy the requirements of convenient assembly and reduced processing difficulty,

as shown in fig. 7 and 8, the flanging 211 is provided with a first connection hole 2111, and the ceramic electric heating module 2 further includes: a connecting member 24, one end of the connecting member 24 being provided with a pressing portion, the other end being provided with a second connecting hole 240; wherein the pressing portion abuts on an end of the ceramic heating core 22, and a bolt passes through the first connection hole 2111 and the second connection hole 240 and is threadedly connected with a fastening nut.

Specifically, in the assembly process of the ceramic electric heating module 2, after the ceramic heating core 22 is inserted into the outer sleeve 21 and inserted into place, the ceramic heating core 22 and the outer sleeve 21 are connected and fixed together through the connecting member 24 on the outside.

Wherein, the connecting piece 24 is pressed on the end part of the ceramic heating core 22 exposed out of the outer sleeve 21 through the configured pressing part thereof so as to realize the pressing and fixing of the ceramic heating core 22; further, the first connection holes 2111 are aligned with the second connection holes 240, and then the connection pieces 24 are fastened to the flange 211 of the outer sheath 21 by bolts to complete the assembly of the ceramic electric heating module 2.

The connecting member 24 is fixed to the flange 211 by bolts so that the flange 211 and the connecting member 24 are firmly and reliably connected together. The end of the ceramic heating core 22 is pressed and positioned by the pressing part of the connecting piece 24, so that the ceramic heating core 22 cannot be separated from the outer sleeve 21, and the ceramic heating core 22 is positioned and fixed.

In addition, the ceramic heating core 22 is connected with the outer sleeve 21 in an extrusion limiting mode, and a hole is not required to be additionally arranged on the ceramic heating core 22 to meet the requirement of bolt connection, so that the processing difficulty of the ceramic heating core 22 is reduced, and the manufacturing cost is further reduced.

In some embodiments, the connection member 24 includes a pressing plate 241, a connection plate 242, and a fixing plate 243, the pressing plate 241 is connected to the fixing plate 243 through the connection plate 242, the pressing plate 241 forms the pressing portion, and the fixing plate 243 is provided with the second connection hole 240.

Specifically, the connecting member 24 is composed of a pressing plate 241, a connecting plate 242 and a fixing plate 243 which are connected together, and the pressing plate 241, the connecting plate 242 and the fixing plate 243 may be an integral structure and formed by bending a metal plate. Wherein, the whole connecting piece 24 is of a ladder structure, and the connecting piece 24 in the ladder structure shape can better meet the installation requirements on the shapes of the outer sleeve 21 and the ceramic heating core 22. For example: the connection plate 242 is disposed perpendicular to the pressing plate 241 and the fixing plate 243.

In other embodiments, the fixing plate 243 is provided with a bent edge 244, and the edge 244 abuts against the side of the outer flange 211.

Specifically, for the fixing plate 243, the second connection hole 240 provided thereon needs to be aligned with the first connection hole 2111 of the flange 211 at the time of assembly to insert a bolt for fastening. And by providing the flange 244 on the fixing plate 243, the flange 244 will abut against the edge of the out-turned flange 211 to facilitate accurate alignment of the first coupling hole 2111 with the second coupling hole 240. Preferably, two angled flaps 244 may be provided on the fixing plate 243, and the two flaps 244 inclined relative to each other may be used to clamp the edge of the outer flange 211, so as to achieve accurate positioning.

In actual assembly, as for the number of the connecting pieces 24, a plurality of connecting pieces can be arranged as required to meet the requirement of reliable connection between the outer sleeve 21 and the ceramic heating core 22.

In other embodiments, the ceramic heating core 22 is provided with a positioning notch 220, and the pressing portion is located in the positioning notch 220.

Specifically, when the connecting member 24 is pressed against the ceramic heating core 22, the pressing plate 241 on the connecting member 24 can be clamped in the positioning notch 220, so as to fix the ceramic heating core 22 in an accurate position.

The outer contour of the flange 211 may be polygonal, and the first connection holes 2111 are disposed at corners of the polygon, so that the positions of the connecting member 24 and the flange 211 are relatively fixed under the positioning action of the flange 244, and the mounting position and the mounting angle of the ceramic heating core 22 can be accurately positioned when the connecting member 24 is matched with the positioning notch 220 on the ceramic heating core 22.

The utility model further provides an electric water heater, which comprises a shell, wherein the inner container adopts the inner container assembly, and the inner container is arranged in the shell.

Specifically, the electric water heater provided by the utility model adopts the liner assembly, the liner assembly is arranged in the shell and then is connected with an external water supply source (a tap water pipe) through a water inlet pipe of the liner assembly, and the water heated in the liner assembly is output to a water terminal (a shower head or a faucet) of a user from a water outlet pipe.

Compared with the prior art, the utility model has the advantages and positive effects that: through set up the ceramic electric heating module that the slope arranged up in the courage body, make ceramic electric heating module and the internal water of courage have bigger heat transfer area on the one hand, with satisfy the requirement of hot water output rate, on the other hand is in the use, because the outer tube slope arranges up, so that the water that congeals that forms in the outer tube is along the smooth and easy outflow of its inner wall under the action of gravity, with avoid congealing water contact ceramic heating core, and then improve and use the reliability, the realization satisfies the requirement that the water heater adopts horizontal water tank to adopt the inner bag subassembly to carry out the heating, with the application range who increases the inner bag subassembly.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An inner container assembly for an electric water heater, comprising:

wherein, the outer tube stretches into in the courage through the installing port, the outer tube with the installing port sealing connection together.

2. The inner container assembly for an electric water heater as claimed in claim 1, wherein the container body is disposed transversely, the outer tube is disposed transversely in the container body, and the outer tube extends obliquely upward from the mounting opening toward the inside of the container body.

3. The inner container assembly of claim 1, wherein a protrusion is formed at one end of the inner container, and the mounting opening is formed at the protrusion.

4. The inner container assembly for an electric water heater as claimed in claim 3, wherein the outer sleeve is provided with an external thread on the outer circumference of the second end portion, and the outer sleeve is screwed in the mounting opening.

5. The inner container assembly for the electric water heater according to claim 4, wherein a connecting seat is welded on the protruding portion, the connecting seat is inserted into the mounting opening, an inner threaded hole is formed in the connecting seat, and the outer sleeve is threaded on the connecting seat.

6. The inner container assembly for an electric water heater as claimed in claim 1, wherein the mounting seat is provided with a first through hole, the sub-core is provided with a second through hole, the insulating core is disposed on the mounting seat, and the pull rod passes through the first through hole and the second through hole and connects the mounting seat and the insulating core together.

7. The inner container assembly for the electric water heater according to claim 6, wherein the ceramic heating core further comprises a positioning block, the positioning block is provided with a third through hole, the pull rod sequentially passes through the first through hole, the second through hole and the third through hole, and the pull rod sequentially connects the mounting seat, the insulating core and the positioning block together.

8. The inner container assembly for the electric water heater according to claim 7, wherein one end surface of the sub-core body is provided with a positioning protrusion, and the other end surface is provided with a positioning groove; the positioning protrusion on one of the sub-cores is inserted into the positioning groove on the other sub-core.

9. The inner container assembly for an electric water heater according to claim 1, wherein the second end of the outer sleeve is provided with an outward flange, and the outward flange is provided with a first connecting hole; the inner container assembly for the electric water heater further comprises a connecting piece, one end of the connecting piece is provided with a pressing part, and the other end of the connecting piece is provided with a second connecting hole; the compressing portion abuts against the end portion of the ceramic heating core, and a bolt penetrates through the first connecting hole and the second connecting hole and is in threaded connection with a fastening nut.

10. An electric water heater comprising a housing, wherein a liner employs the liner assembly of any one of claims 1-9, the liner being disposed in the housing.