CN114754489A

CN114754489A - Ceramic electric heating type inner container assembly and electric water heater

Info

Publication number: CN114754489A
Application number: CN202110618879.6A
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: 2021-06-03
Publication date: 2022-07-15
Also published as: CN114754490A; CN215909429U; CN215909428U; CN112781227A

Abstract

The invention discloses a ceramic electric heating type liner component and an electric water heater, wherein the ceramic electric heating type liner component comprises: the liner body is transversely arranged and used for storing water; the ceramic electric heating module comprises an outer sleeve and a ceramic heating core, and the ceramic heating core is arranged in the outer sleeve; the outer sleeve is hermetically extended into the container body, the outer sleeve is transversely arranged in the container body, and the outer sleeve obliquely and upwards extends towards the inner direction of the container body. The ceramic electric heating type inner container assembly meets the use requirement of a horizontal water tank adopted by a water heater, so that the use range of the ceramic electric heating type inner container assembly is increased, and the use reliability is improved.

Description

Ceramic electric heating type inner container assembly and electric water heater

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a ceramic electric heating type inner container assembly and an 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 heater is vertically arranged in the water tank, so that condensed water can be smoothly discharged without contacting with the ceramic heating core, the water heater needs to be vertically arranged, and the water heater cannot be used in a conventional horizontal water tank, so that the use range is limited.

In view of this, how to design a ceramic heating technology for horizontal water heaters is a technical problem to be solved by the present invention.

Disclosure of Invention

The invention provides a ceramic electric heating type liner assembly and an electric water heater, which can meet the use requirement of a horizontal water tank adopted by the water heater by the ceramic electric heating type liner assembly so as to increase the use range of the ceramic electric heating type liner assembly and improve the use reliability.

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

in one aspect, the present invention provides a ceramic electrically heated bladder assembly comprising:

The liner body is transversely arranged and used for storing water;

a ceramic electrical heating module comprising an outer sleeve and a ceramic heating core disposed in the outer sleeve;

the outer sleeve is hermetically extended into the container body, the outer sleeve is transversely arranged in the container body, and the outer sleeve obliquely and upwards extends towards the inner direction of the container body.

In an embodiment of the present application, a protruding portion is disposed at an end of the liner body, and the outer sleeve is disposed on the protruding portion.

In an embodiment of the present application, the protruding portion is formed with an installation end surface on which the outer sleeve is disposed, and the installation end surface is obliquely arranged with respect to a horizontal center line of the container body.

In an embodiment of the present application, the second end of the outer sleeve is provided with a flanging, and an included angle is formed between a center line of the outer sleeve and a perpendicular line of the flanging.

In an embodiment of the present application, a sealing ring is disposed between the second end of the outer sleeve and the liner.

In an embodiment of the present application, the method further includes:

the temperature sensing module comprises a heat conduction pipe and a temperature controller, the heat conduction pipe is transversely arranged at one end of the liner body and is hermetically inserted into the liner body, and a temperature sensing probe of the temperature controller is positioned in the heat conduction pipe.

In an embodiment of the present application, the ceramic electric heating module is arranged below the heat conducting pipe.

In an embodiment of the present application, the ceramic electric heating liner assembly includes two ceramic electric heating modules, one of the ceramic electric heating modules is disposed below the heat conductive pipe, and the other ceramic electric heating module is disposed above the heat conductive pipe.

In one embodiment of the present application, the ceramic heating core includes mount pad, insulating core, electric heating wire and pull rod, the mount pad is provided with first through-hole, insulating core is provided with the second through-hole, insulating core sets up on the mount pad, the pull rod passes first through-hole with the second through-hole will the mount pad with insulating core links together, electric heating wire sets up on the insulating core.

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

Compared with the prior art, the invention 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, in order to satisfy the requirement of hot water output rate, on the other hand in the use, because the outer tube slope arranges up, so that the water of congealing 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, realize satisfying the water heater and adopt horizontal water tank to adopt ceramic electric heating formula inner bag subassembly to carry out the requirement of heating, in order to increase the application range of ceramic electric heating formula 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 diagram of a ceramic electrically heated bladder assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the ceramic electric heating liner assembly of the present invention;

FIG. 3 is a cross-sectional view of one embodiment of the ceramic electrically heated bladder assembly of the present invention;

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 one of the cross-sectional views of the ceramic electric heating module of FIG. 7;

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

Fig. 10 is a partially enlarged view of the region B in fig. 9.

Reference numerals are as follows:

a liner body 1;

a convex part 11 and a connecting seat 12;

a ceramic electric heating module 2;

an outer sleeve 21, a ceramic heating core 22 and a sealing ring 23;

flanging 211 and cambered surface 212;

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

a tensioning end 2231 and a positioning surface 2241;

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.

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," "second," and the like 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 expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating 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 invention. To simplify the disclosure of the present invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves 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 will recognize the application of other processes and/or the use 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 aim of preparing hot water.

The electric water heater generally includes a water tank, an electric heating component, 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 component is inserted into the water storage cavity formed in the water tank, and the electric control device is used for controlling the electric heating component to be powered on and powered off to operate, so that the water in the water tank is heated 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 appearance; the inner container can adopt a metal container body or a plastic container body according to requirements.

In addition, the heat preservation layer that forms between shell and the inner bag, commonly used insulation material has: asbestos, sponge, foamed 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 disposes the magnesium stick on the water tank, and the magnesium stick inserts in the inside water storage cavity of water tank.

Magnesium is physiologically non-toxic because it is the lowest potential metal in the electrochemical series. Therefore, the magnesium rod protective liner is very ideal for being made into a magnesium rod protective liner. 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 component, 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 invention adopts a ceramic electric heating module to heat water, and the following description is combined with the attached drawings.

First embodiment, as shown in fig. 1 to 6, the present embodiment provides a ceramic electrically heated liner assembly, including:

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

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

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.

For the liner body 1 which is transversely arranged, the ceramic electric heating module 2 also extends into the liner body 1 from a mounting opening which is configured on the end part of the liner body 1 in a transverse arrangement mode. 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, the ceramic electric heating liner assembly contains water to be heated through the liner body 1, wherein the liner body 1 is provided with a water inlet pipe 101 and a water outlet pipe 102 which extend to the interior of the liner body 1, cold water enters the liner 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.

In order to increase the heating efficiency and the reliability of use, 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 formed in the outer casing 21 can be effectively prevented from dropping on the ceramic heating core 22 to damage the high-temperature ceramic heating core 22, and the use reliability can be improved.

In the actual use process, the ceramic electric heating module 2 can be used in the horizontal liner body 1 so as to meet the use requirement that the horizontal 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 disposed at an end of the liner body 1, and the protruding portion 11 may be formed on the end socket of the liner body 1 by stamping or the like. Generally speaking, the head of the transversely arranged liner body 1 is an arc surface, and the bulge 11 protrudes from the arc end surface of the head of the liner body 1, so that a smooth mounting end surface can be formed on the bulge 11, and meanwhile, the mounting opening is formed in the bulge 11, so that the ceramic electric heating module 2 can be conveniently inserted into the mounting opening to be fixed on the bulge 11 of the liner body 1.

In one embodiment, the outer sleeve 21 is connected with the container body 1 in a sealing manner. 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 1, thereby improving the overall sealing performance.

Wherein, the second end of the outer sleeve 21 is provided with a flange 211, and the sealing ring 23 is clamped between the flange 211 and the boss 11. The gasket 23 is interposed between the flange 211 and the boss 11, and a connection portion formed between the outer tube 21 and the liner 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 flange 211 is provided at the second end of the outer sleeve 21, and an angle is formed between the center line of the outer sleeve 21 and a perpendicular line of the flange 211.

Specifically, for the outer sleeve 21, when it is installed and fixed, the plane formed by the flanging 211 serves as an installation reference plane, and the center line of the outer sleeve 21 itself is arranged obliquely relative 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 marked) may be provided at the outer circumference of the second end portion of the outer sleeve 21, and the installation opening is formed with an internal thread (not marked) in which the outer sleeve 21 is screwed.

Specifically, when an operator forms 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 thread hole, for an internal thread 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 satisfy the threaded connection's of outer tube 21 requirement with forming enough long internal thread hole 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, a first end of the outer sleeve 21 extends into the internal threaded hole on the connecting seat 12, and then a 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 will be clamped between the flange 211 and the connecting seat 12, so as to satisfy the requirement of sealing connection.

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 ceramic electric heating modules 2 can be used for heating together to meet the requirement of rapidly heating water to improve the hot water output rate. Wherein, a plurality of ceramic electric heating modules are arranged from top to bottom in sequence to carry out effective heating to the water in the liner body 1 in the height direction better.

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 electrical heating module 2 arranges in the bottom of courage body 1, utilizes the pottery electrical heating module 2 of bottom can 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 ceramic electrical heating liner assembly further includes: and a temperature sensing module 3.

The temperature sensing module 3 comprises a heat conduction pipe 31 and a temperature controller, the heat conduction 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 conduction 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, based on the first embodiment, there are various ways for the specific structural form of the ceramic electric heating module 2, and in order to better satisfy the installation requirement of installing the ceramic electric heating module 2 on the transversely arranged liner body 1, and at the same time, in order to satisfy the requirement of improving the shock resistance of the ceramic electric heating module 2 during transportation. The following structural improvement is made for the ceramic electric heating module 2.

As shown in fig. 7 to 8, the ceramic heating core 22 includes a mounting seat 221, an insulating core 222, an electric heating wire (not shown) disposed on the insulating core 222, and a tie rod 223, the mounting seat 221 being provided with a first through hole (not labeled), the insulating core 222 being provided with a second through hole (not labeled), the insulating core 222 being disposed on the mounting seat 221, the tie rod 223 penetrating the first through hole and the second through hole and connecting the mounting seat 221 and the insulating core 222 together.

Specifically, the insulating core 222 of the ceramic heating core 22 can be 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 through a pull rod 223, 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 locking nut, and the locking 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 manner of connecting the mounting seat 221 with the outer sleeve 21 may be a conventional manner such as a bolt, and is not limited and described herein.

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 reinforcing function on the insulating core 222 inside the insulating core 222, so as to effectively improve the structural strength of the insulating core 222 suspended on the mounting seat 221. In the transportation process, because the insulation core 222 is effectively supported by the pull rod 223 inside, 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 end 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 end 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.

The pull rod 223 may be provided with threaded sections at both ends, and the pull rod 223 may be screwed to the positioning block 224.

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

The method comprises the following specific steps: the inner wall of the closed structure formed by the first end portion 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 contacts the arc surface 212 formed at the free end of the outer sleeve 21.

Since the arc surface 212 has a self-centering function, 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.

In the case of the arc surface 212, a hemispherical surface is preferably used, and the positioning surface 2241 is provided with a chamfer for the edge of the positioning block 224.

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

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

Compared with the prior art, the invention 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 the requirement that satisfies 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 that the water heater adopts horizontal water tank to adopt ceramic electric heating formula inner bag subassembly to carry out the requirement of heating, with the application range who increases ceramic electric heating formula inner bag subassembly.

The above examples are only intended to illustrate the technical solution of the present invention, and 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; such modifications and substitutions do not depart from the spirit and scope of the corresponding claims.

Claims

1. A ceramic electrically heated bladder assembly comprising:

the liner body is transversely arranged and used for storing water;

2. The ceramic electrically heated liner assembly as set forth in claim 1, wherein a boss portion is provided at one end portion of said liner body, and said outer sleeve is provided on said boss portion.

3. The ceramic electrically heated liner assembly of claim 2 wherein said boss is formed with a mounting end face on which said outer sleeve is disposed, said mounting end face being disposed obliquely to a horizontal centerline of said liner body.

4. A ceramic electrically heated bladder assembly as claimed in claim 1, wherein the second end of the outer sleeve is provided with a flange, the centre line of the outer sleeve being angled from a perpendicular to the flange.

5. The ceramic electrically heated liner assembly of claim 1 wherein a seal is disposed between the second end of the outer sleeve and the liner body.

6. The ceramic electrically heated bladder assembly of claim 1 further comprising:

7. The ceramic electrically heated bladder assembly of claim 6 wherein the ceramic electrical heating module is disposed below the heat conductive conduit.

8. The ceramic electrically heated liner assembly of claim 6 wherein said ceramic electrically heated liner assembly includes two of said ceramic electrical heating modules, one of said ceramic electrical heating modules being disposed below said heat conductive conduits and the other of said ceramic electrical heating modules being disposed above said heat conductive conduits.

9. A ceramic electrically heated bladder assembly as claimed in any one of claims 1 to 8, wherein said ceramic heating core comprises a mounting block, an insulating core, an electrical heating wire and a pull rod, said mounting block being provided with a first through hole, said insulating core being provided with a second through hole, said insulating core being provided on said mounting block, said pull rod passing through said first and second through holes and connecting said mounting block and said insulating core together, said electrical heating wire being provided on said insulating core.

10. An electric water heater, comprising a shell, characterized in that the liner adopts a ceramic electric heating liner assembly as claimed in any one of claims 1-9, and the liner is arranged in the shell.