Ceramic electric heating tank assembly and electric water heater

Abstract

The present invention discloses a ceramic electric heating liner assembly and an electric water heater. The ceramic electric heating liner assembly includes: a liner body, which is arranged horizontally and is used to store water; a ceramic electric heating module, which includes an outer sleeve and a ceramic heating core, and the ceramic heating core is disposed in the outer sleeve. The outer sleeve is sealed and extends into the liner body, is arranged horizontally within the liner body, and extends upward and obliquely toward the interior of the liner body. The ceramic electric heating liner assembly meets the use requirements of a horizontal water tank for water heaters, thereby expanding the use range of the ceramic electric heating liner assembly and improving its reliability.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a ceramic electric heating inner tank component and an electric water heater. Background Art

[0002] Water heaters are a common household appliance in our daily lives. Depending on the heating source, they are categorized into electric and gas water heaters. Electric water heaters are widely used due to their ease of installation. They typically consist of an inner tank and an electric heater, which heats the water within.

[0003] The use of ceramic heating tubes in electric water heaters is gaining popularity. For example, Chinese patent application No. 201210208328.3 discloses a novel spiral-tube forced circulation electric heater that uses ceramic heating tubes to heat water within the water tank. However, the heater is mounted vertically within the water tank to ensure smooth drainage of condensate without contacting the ceramic heating core. This necessitates an upright installation of the water heater, making it unsuitable for use in conventional horizontal water tanks, limiting its scope of application.

[0004] In view of this, how to design a ceramic heating technology that meets the needs of horizontal water heaters is the technical problem to be solved by the present invention. Summary of the Invention

[0005] The present invention provides a ceramic electric heating liner assembly and an electric water heater, which realizes that the ceramic electric heating liner assembly meets the use requirement of the water heater using a horizontal water tank, thereby increasing the use range of the ceramic electric heating liner assembly and improving the reliability of use.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] In one aspect, the present invention provides a ceramic electrically heated liner assembly, comprising:

[0008] a gallbladder body, the gallbladder body being arranged transversely and used for storing water;

[0009] A ceramic electric heating module, comprising an outer sleeve and a ceramic heating core, wherein the ceramic heating core is disposed in the outer sleeve;

[0010] The outer sleeve is sealed and extends into the bile body. The outer sleeve is arranged transversely in the bile body and extends obliquely upwards toward the interior of the bile body.

[0011] In one embodiment of the present application, a protrusion is provided at one end of the bile body, and the outer sleeve is provided on the protrusion.

[0012] In one embodiment of the present application, the protrusion is formed with a mounting end surface, the outer sleeve is arranged on the mounting end surface, and the mounting end surface is arranged obliquely relative to the horizontal center line of the gallbladder body.

[0013] In one embodiment of the present application, the second end of the outer sleeve is provided with an outer flange, and an angle is formed between the center line of the outer sleeve and a perpendicular line of the outer flange.

[0014] In one embodiment of the present application, a sealing ring is provided between the second end of the outer sleeve and the gallbladder body.

[0015] In one embodiment of the present application, it further includes:

[0016] The temperature sensing module includes a heat pipe and a temperature controller. The heat pipe is transversely arranged at one end of the gallbladder body and is sealed and inserted into the gallbladder body. The temperature sensing probe of the temperature controller is located in the heat pipe.

[0017] In one embodiment of the present application, the ceramic electric heating module is arranged below the heat pipe.

[0018] In one embodiment of the present application, the ceramic electric heating liner assembly includes two ceramic electric heating modules, one of which is arranged below the heat pipe, and the other is arranged above the heat pipe.

[0019] In one embodiment of the present application, the ceramic heating core includes a mounting seat, an insulating core, an electric heating wire and a pull rod, the mounting seat is provided with a first through hole, the insulating core is provided with a second through hole, the insulating core is provided on the mounting seat, the pull rod passes through the first through hole and the second through hole and connects the mounting seat and the insulating core together, and the electric heating wire is provided on the insulating core.

[0020] The present invention also provides an electric water heater, comprising an outer shell, wherein the inner shell adopts the above-mentioned ceramic electric heating inner shell component, and the inner shell is arranged in the outer shell.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are: by arranging a ceramic electric heating module that is tilted upward in the tank body, on the one hand, the ceramic electric heating module and the water in the tank body have a larger heat exchange area to meet the requirements of the hot water output rate; on the other hand, during use, since the outer sleeve is tilted upward, the condensed water formed in the outer sleeve flows out smoothly along its inner wall under the action of gravity to avoid the condensed water contacting the ceramic heating core, thereby improving the reliability of use and meeting the requirements of the water heater using a horizontal water tank and a ceramic electric heating inner tank assembly for heating, thereby increasing the scope of use of the ceramic electric heating inner tank assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a structural schematic diagram of an embodiment of a ceramic electric heating liner assembly of the present invention;

[0024] Figure 2 This is a structural schematic diagram of an embodiment of a ceramic electric heating liner assembly of the present invention;

[0025] Figure 3 A cross-sectional view of an embodiment of a ceramic electric heating liner assembly according to the present invention;

[0026] Figure 4 for Figure 3 A partial enlarged schematic diagram of area A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of a ceramic electric heating module in an embodiment of an electric water heater of the present invention;

[0028] Figure 6 for Figure 5 A cross-sectional view of the ceramic electric heating module;

[0029] Figure 7 This is a second structural diagram of a ceramic electric heating module in an embodiment of an electric water heater of the present invention;

[0030] Figure 8 for Figure 7 One of the cross-sectional views of the ceramic electric heating module;

[0031] Figure 9 for Figure 7 The second cross-sectional view of the ceramic electric heating module;

[0032] Figure 10 for Figure 9 A partial enlarged schematic diagram of area B in the middle.

[0033] Reference numerals:

[0034] Bile body 1;

[0035] The raised portion 11 and the connecting seat 12;

[0036] Ceramic electric heating module 2;

[0037] Outer sleeve 21, ceramic heating core 22, sealing ring 23;

[0038] Outer flange 211, curved surface 212;

[0039] Mounting seat 221, insulating core 222, pull rod 223, positioning block 224;

[0040] tensioning end 2231 and positioning surface 2241;

[0041] Temperature sensing module 3;

[0042] Heat conducting pipe 31, temperature sensing probe 32;

[0043] Water inlet pipe 101 and water outlet pipe 102. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0047] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the devices or components described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, these terms may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0051] An electric water heater uses electricity as its main energy source. The high-temperature heat generated when powered on directly heats the water stored in the electric water heater to prepare hot water.

[0052] An electric water heater usually consists of a water tank, an electric heating component, and an electronic control device. A water storage cavity is formed in the water tank to store the water to be heated. The electric heating component is inserted into the water storage cavity formed by the water tank. The electronic control device is used to control the on and off operation of the electric heating component so that the water in the water tank is heated to the set temperature.

[0053] The water tank of an electric water heater generally consists of an outer shell and an inner tank, with an insulation layer between the outer shell and the inner tank. The outer shell is usually made of plastic to meet the requirements of aesthetic and diverse design. The inner tank can be made of metal or plastic depending on the needs.

[0054] In addition, the insulation layer formed between the outer shell and the inner liner is made of commonly used insulation materials such as asbestos, sponge, foam plastic, polyurethane foam, etc. In conventional technology, in order to obtain a good insulation effect, the insulation layer is usually formed by foaming.

[0055] Among them, for the inner tank with a metal body, the interior of the inner tank is prone to corrosion due to the influence of water quality. For this reason, a magnesium rod is also configured on the water tank, and the magnesium rod is inserted into the water storage cavity inside the water tank.

[0056] Because magnesium has the lowest potential in the electrochemical series and is physiologically non-toxic, it is ideal for use as a magnesium rod to protect the inner liner. The size of the magnesium rod directly affects the duration and effectiveness of the protective effect. The larger the magnesium rod, the better the protection and the longer the protection lasts.

[0057] For the electric heating component, electric heating methods such as electric heating wire, magnetic energy or silicon tube heating can be used to heat the water stored in the water storage cavity.

[0058] The electric heating component in the present invention uses a ceramic electric heating module to heat water, which is described below with reference to the accompanying drawings.

[0059] Example 1, as Figures 1-6 As shown, this embodiment provides a ceramic electrically heated inner liner assembly, comprising:

[0060] The body 1 is used to store water and has an installation port (not marked);

[0061] The ceramic electric heating module 2 includes an outer sleeve 21 and a ceramic heating core 22. The first end of the outer sleeve 21 is a closed structure, and the ceramic heating core 22 is disposed in the outer sleeve 21.

[0062] The outer sleeve 21 extends into the gallbladder body 1 through the installation opening, and the outer sleeve 21 is sealed and connected to the installation opening.

[0063] For a horizontally arranged bladder body 1, the ceramic electric heating module 2 is also arranged horizontally, extending into the bladder body 1 from a mounting opening configured at the end of the bladder body 1. To reduce damage to the ceramic heating core caused by condensation within the outer sleeve 21 due to alternating hot and cold air during use, the outer sleeve 21 of the ceramic electric heating module 2 is arranged horizontally within the bladder body 1, extending obliquely upward from the outside to the inside of the bladder body 1.

[0064] Specifically, the ceramic electric heating inner tank assembly holds the water to be heated through the tank body 1, wherein the tank body 1 is provided with a water inlet pipe 101 and a water outlet pipe 102 extending into the interior of the tank body 1. Cold water enters the tank body 1 through the water inlet pipe 101, and the heated hot water is output from the water outlet pipe 102.

[0065] In order to heat the water in the bile body 1, a ceramic electric heating module 2 is provided in the bile body 1. The ceramic electric heating module 2 uses a ceramic heating core 22 to generate heat, and the outer shell 21 is provided on the outside of the ceramic heating core 22 to protect the ceramic heating core 22 through the outer shell 21.

[0066] Among them, the outer sleeve 21 is made of thermally conductive materials such as copper and aluminum, so as to protect the ceramic heating core 22 while having good thermal conductivity, thereby ensuring that the heat generated by the ceramic heating core 22 is quickly transferred to the water in the gallbladder body 1 through the outer sleeve 21.

[0067] To improve heating efficiency and reliability, the ceramic electric heating module 2 is arranged at an angle within the horizontally arranged bladder body 1. Furthermore, the ceramic electric heating module 2 extends upward within the bladder body 1, increasing its length within the bladder body 1 and further improving heating efficiency to meet the required hot water output rate.

[0068] Furthermore, because the ceramic electric heating module 2 is mounted on the bladder body 1 in an upwardly extending, tilted manner, during use, when moisture-laden air from the outside enters the outer tube 21 and condenses upon cooling, the condensed water, under the action of gravity, flows downward along the inner tube wall of the outer tube 21 and eventually flows out. This effectively reduces the risk of water droplets from the outer tube 21 falling onto the high-temperature ceramic heating core 22 and causing damage, thereby improving operational reliability.

[0069] In actual use, the ceramic electric heating module 2 can be used in the horizontally placed gallbladder body 1 to meet the use requirement of using the ceramic electric heating module 2 to heat the horizontally placed gallbladder body 1, thereby improving the reliability of use.

[0070] In one embodiment, a protrusion 11 is provided at one end of the gallbladder body 1 , and the mounting opening is provided on the protrusion 11 .

[0071] Specifically, in order to facilitate the installation of the ceramic electric heating module 2, a raised portion 11 is provided at the end of the gallbladder body 1. The raised portion 11 can be formed on the end cap of the gallbladder body 1 by stamping or other methods. Generally, the end cap of the transversely arranged gallbladder body 1 is an arcuate surface, and since the raised portion 11 protrudes from the arcuate end face of the end cap of the gallbladder body 1, a relatively flat mounting end face can be formed on the raised portion 11. At the same time, an opening is formed on the raised portion 11 to form the mounting port, so as to facilitate the insertion of the ceramic electric heating module 2 into the mounting port for mounting and fixing it on the raised portion 11 of the gallbladder body 1.

[0072] In one embodiment, in order to improve the sealing performance of the connection between the outer sleeve 21 and the gallbladder body 1 , a sealing ring 23 is provided between the second end of the outer sleeve 21 and the raised portion 11 .

[0073] Specifically, the sealing ring 23 seals the connection portion formed between the outer sleeve 21 and the gallbladder body 1, thereby improving the overall sealing performance.

[0074] The second end of the outer sleeve 21 is provided with an outer flange 211, and the sealing ring 23 is sandwiched between the outer flange 211 and the raised portion 11. The sealing ring 23 is sandwiched between the outer flange 211 and the raised portion 11 to seal the connection between the outer sleeve 21 and the gallbladder body 1.

[0075] In some embodiments, in order to realize that the outer sleeve 21 extends obliquely upward toward the interior of the gallbladder body 1, at least two structural designs can be adopted to realize it.

[0076] Method 1 is to realize inclined installation of the outer sleeve 21 by designing the installation end surface formed by the protrusion 11 as an inclined surface, that is, the installation end surface is arranged inclined relative to the horizontal center line of the gallbladder body 1.

[0077] Specifically, when installing the ceramic electric heating module 2, the tilted mounting end surface is used to achieve tilted mounting of the ceramic electric heating module 2, so that the ceramic electric heating module 2 extends upward along the invoice centerline of the bladder body 1 and into the interior of the bladder body 1. As for the mounting end surface, during the molding process of the bladder body 1, the raised portion 11 is formed to form the mounting end surface at a certain tilt angle. In this way, when installing the ceramic electric heating module 2, it only needs to be mounted and fixed on the raised portion 11, so that the ceramic electric heating module 2 can be arranged tilted upward inside the bladder body 1.

[0078] Method 2: Figure 7 As shown, the second end of the outer sleeve 21 is provided with an outer flange 211 , and an angle is formed between the center line of the outer sleeve 21 and the perpendicular line of the outer flange 211 .

[0079] Specifically, for the outer sleeve 21, when it is installed and fixed, the plane formed by the outer flange 211 serves as the installation reference plane, and the center line of the outer sleeve 21 itself will be arranged tilted relative to the plane formed by the outer flange 211, that is, an acute angle is formed between the center line of the outer sleeve 21 and the perpendicular line of the outer flange 211 to meet the requirement that the outer sleeve 21 extends tilted upward.

[0080] In some embodiments, in order to facilitate the installation of the outer sleeve 21, an external thread (not marked) can be provided on the outer periphery of the second end of the outer sleeve 21, and the installation port is formed with an internal thread (not marked), and the outer sleeve 21 is threadedly connected to the installation port.

[0081] Specifically, when the operator assembles it in the factory, he first puts the sealing ring 23 on the outside of the outer sleeve 21, and then inserts the outer sleeve 21 into the installation port. After the external thread of the outer sleeve 21 contacts the internal thread on the installation port, the outer sleeve 21 is rotated so that the outer sleeve 21 is threadedly connected to the gallbladder body 1.

[0082] As the outer sleeve 21 is gradually tightened, the sealing ring 23 is squeezed between the outer flange 211 and the protruding portion 11 , and finally the ceramic electric heating module 2 is assembled to the gallbladder body 1 .

[0083] In a preferred embodiment, in order to improve the connection reliability and connection strength between the outer sleeve 21 and the gallbladder body 1, for the internal threaded hole formed on the gallbladder body 1, a connecting seat 12 can be welded on the protrusion 11, and the connecting seat 12 is provided with an internal threaded hole.

[0084] Specifically, an internal threaded hole is formed on the connecting seat 12, and the connecting seat 12 is fixedly mounted on the raised portion 11 by welding. In this way, a sufficiently long internal threaded hole can be formed on the gallbladder body 1 through the connecting seat 12 to meet the threaded connection requirements of the outer sleeve 21. At the same time, the connecting seat 12 is fixed to the gallbladder body 1 by welding, so that there is sufficient connection strength between the connecting seat 12 and the gallbladder body 1.

[0085] When the outer sleeve 21 is to be assembled, the first end of the outer sleeve 21 extends into the internal threaded hole on the connecting base 12. Then, the second end of the outer sleeve 21 engages with the internal threaded hole through the external thread to thread the outer sleeve 21 onto the connecting base 12. At the same time, the sealing ring 23 is clamped between the outer flange 211 and the connecting base 12, thereby meeting the requirements of a sealed connection.

[0086] In other embodiments, in order to effectively improve the heating efficiency to meet the requirement of hot water output rate, a plurality of ceramic electric heating modules 2 can be provided in the tank body 1.

[0087] Specifically, multiple ceramic electric heating modules 2 are installed in the tank body 1. These modules heat the water together to meet the requirements of rapidly heating the water and improving the hot water output rate. The multiple ceramic electric heating modules are arranged sequentially from top to bottom to effectively heat the water in the tank body 1 in the vertical direction.

[0088] In one embodiment, two ceramic electric heating modules 2 are provided in the gallbladder body 1 , wherein one ceramic electric heating module 2 is arranged at the front side of the water outlet pipe 102 , and the other ceramic electric heating module 2 is arranged at the rear side of the water outlet pipe 102 .

[0089] Specifically, taking two ceramic electric heating modules 2 as an example, one of the ceramic electric heating modules 2 is arranged above the tank body 1 and close to the upper end of the water outlet pipe 102, so that the water flowing into the water outlet pipe 102 can be directly heated, thereby meeting the 3D heating function of the electric water heater.

[0090] At the same time, another ceramic electric heating module 2 is arranged at the bottom of the tank body 1. The ceramic electric heating module 2 at the bottom can heat the water at the bottom of the tank body 1, thereby achieving rapid heating of the water at the bottom of the tank body 1. After the water at the bottom of the tank body 1 is heated, the principle of hot water's light specific gravity is utilized to cause the water distributed upward and downward in the tank body 1 to circulate, thereby improving the efficiency of water heating.

[0091] In some embodiments, since the tank body 1 is no longer provided with a flange for connection, in order to meet the installation requirements of the temperature probe in the temperature controller, a mounting hole can be provided at one end of the tank body 1. Correspondingly, the ceramic electric heating tank assembly also includes: a temperature sensing module 3.

[0092] The temperature sensing module 3 includes a heat pipe 31 and a temperature controller. The heat pipe 31 is transversely arranged at one end of the gallbladder body 1 and is sealed and inserted into the gallbladder body 1 . The temperature sensing probe 32 of the temperature controller is located in the heat pipe 31 .

[0093] Specifically, since the ceramic electric heating module 2 is installed on the head of the gallbladder body 1 by means of a threaded connection, a mounting hole is opened on the head, and the heat pipe 31 is sealed and inserted into the mounting hole. The end of the heat pipe 31 located inside the gallbladder body 1 adopts a sealed design, and the temperature sensing probe 32 is installed inside the gallbladder body 1 through the heat pipe 31, and the water temperature inside the gallbladder body 1 is detected by the temperature sensing probe 32.

[0094] In the second embodiment, based on the first embodiment, there are many ways to design the specific structure of the ceramic electric heating module 2. In order to better meet the installation requirements of the ceramic electric heating module 2 in the horizontally arranged bladder body 1 and to improve the anti-seismic capability of the ceramic electric heating module 2 during transportation, the following structural improvements are made to the ceramic electric heating module 2.

[0095] like Figure 7-Figure 8 As shown, 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 is provided on the mounting seat 221, the pull rod 223 passes through the first through hole and the second through hole and connects the mounting seat 221 and the insulating core 222 together, and the electric heating wire is provided on the insulating core 222.

[0096] Specifically, the insulating core 222 in the ceramic heating core 22 can be made of sintered ceramic material, while the mounting base 221 can be made of heat-resistant insulating material, for example, ceramic material. The insulating core 222 and the mounting base 221 are connected by a pull rod 223. One end of the pull rod 223 can be configured with a tightening end 2231, and the tightening end 2231 rests on the insulating core 222. The other end of the pull rod 223 is threadedly connected to a locking nut, and the locking nut rests on the outside of the mounting base 221, so that the insulating core 222 and the mounting base 221 are fixed together. Then, the mounting base 221 is connected and fixed to the outer sleeve 21, wherein the mounting base 221 and the outer sleeve 21 can be connected by conventional means such as bolts, which will not be limited or elaborated here.

[0097] The tie rod 223 can connect the insulating core 222 to the mounting base 221. On the other hand, the tie rod 223 can also reinforce the structure of the insulating core 222 inside the insulating core 222, thereby effectively improving the structural strength of the insulating core 222 suspended on the mounting base 221. During transportation, the insulating core 222 is effectively supported by the tie rod 223 inside, which can effectively reduce the collision between the insulating core 222 and the outer sleeve 21 due to vibration, thereby improving reliability.

[0098] In a preferred embodiment, Figure 9 and Figure 10 As shown, in order to better protect the insulating core 222, the heating core includes a positioning block 224, which is provided with a third through hole (not marked), and the pull rod 223 passes through the third through hole, the second through hole and the first through hole in sequence, and the tensioning end 2231 rests on the positioning block 224.

[0099] Specifically, a positioning block 224 is provided at the suspended end of the insulating core 222, and the tensioning end 2231 of the pull rod 223 abuts against the positioning block 224. Thus, the positioning block 224 will withstand the pressure generated by the tensioning end 2231. Furthermore, since the positioning block 224 has a large contact area with the insulating core 222, damage to the insulating core 222 by the tensioning end 2231 during the tightening of the lock nut can be avoided, thereby improving assembly reliability.

[0100] In addition, the pull rod 223 may also be provided with threaded sections at both ends, and the pull rod 223 is connected to the positioning block 224 by threaded connection.

[0101] Furthermore, in order to more accurately and reliably install the ceramic heating core 22 , the free end of the outer sleeve 21 can be used to further position and support the ceramic heating core 22 .

[0102] Specifically, the inner wall of the closed structure formed by the first end of the outer sleeve 21 is an arc surface 212 , and the positioning block 224 is provided with a positioning surface 2241 that matches the arc surface 212 , and the positioning surface 2241 abuts against the arc surface 212 .

[0103] Specifically, after the ceramic heating core 22 is assembled, the ceramic heating core 22 can be installed in the outer sleeve 21. 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 by the free end of the outer sleeve 21.

[0104] Since the arc surface 212 itself has the function of automatic centering, the ceramic heating core 22 can be accurately installed in place. On the one hand, it can ensure that the gap between the ceramic heating core 22 and the inner tube wall of the outer sleeve 21 is maintained in a precise range. 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 conducive to improving the seismic resistance of the ceramic heating core 22.

[0105] As for the arc surface 212 , a hemispherical surface is preferably adopted, and the positioning surface 2241 is a chamfered edge of the positioning block 224 .

[0106] In a third embodiment, the present invention further provides an electric water heater, comprising an outer shell, wherein the inner liner adopts the above-mentioned ceramic electric heating inner liner assembly, and the inner liner is arranged in the outer shell.

[0107] Specifically, the electric water heater provided by the present invention adopts the above-mentioned ceramic electric heating inner tank assembly, and the ceramic electric heating inner tank assembly is placed in the outer shell. Then, the water inlet pipe of the ceramic electric heating inner tank assembly is connected to the external water supply source (tap water pipe), and the water heated in the ceramic electric heating inner tank assembly is output from the water outlet pipe to the user's water use terminal (shower or faucet).

[0108] Compared with the prior art, the advantages and positive effects of the present invention are: by arranging a ceramic electric heating module that is tilted upward in the tank body, on the one hand, the ceramic electric heating module and the water in the tank body have a larger heat exchange area to meet the requirements of the hot water output rate; on the other hand, during use, since the outer sleeve is tilted upward, the condensed water formed in the outer sleeve flows out smoothly along its inner wall under the action of gravity to avoid the condensed water contacting the ceramic heating core, thereby improving the reliability of use and meeting the requirements of the water heater using a horizontal water tank and a ceramic electric heating inner tank assembly for heating, thereby increasing the scope of use of the ceramic electric heating inner tank assembly.

[0109] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A ceramic electric heating liner assembly, characterized in that: include: a gallbladder body, the gallbladder body being arranged transversely and used for storing water; A ceramic electric heating module, comprising an outer sleeve and a ceramic heating core, wherein the ceramic heating core is disposed in the outer sleeve; The outer tube is sealed and extends into the bile body. The outer tube is arranged transversely in the bile body and extends upwardly and obliquely toward the inside of the bile body. The outer tube is configured so that condensed water will flow downward along the inner tube wall of the outer tube under the action of gravity and eventually flow out. The ceramic heating core includes a mounting base, an insulating core, an electric heating wire and a pull rod. The mounting base is provided with a first through hole, the insulating core is provided with a second through hole, the insulating core is arranged on the mounting base, the pull rod passes through the first through hole and the second through hole and connects the mounting base and the insulating core together, and the electric heating wire is arranged on the insulating core; A sealing ring is provided between the second end of the outer sleeve and the gallbladder body; The ceramic electric heating liner assembly also includes: a temperature sensing module, which includes a heat pipe and a temperature controller. The heat pipe is transversely arranged at one end of the liner body and sealed and inserted into the liner body. The temperature sensing probe of the temperature controller is located in the heat pipe.

2. The ceramic electric heating liner assembly according to claim 1, characterized in that: A protrusion is provided at one end of the bile body, and the outer sleeve is provided on the protrusion.

3. The ceramic electrically heated liner assembly according to claim 2, characterized in that: The protrusion is formed with a mounting end surface, the outer sleeve is arranged on the mounting end surface, and the mounting end surface is arranged obliquely relative to the horizontal center line of the gallbladder body.

4. The ceramic electrically heated liner assembly according to claim 1, characterized in that: The second end of the outer sleeve is provided with an outer flange, and an angle is formed between the center line of the outer sleeve and a perpendicular line of the outer flange.

5. The ceramic electrically heated inner tank assembly according to claim 1, characterized in that: The ceramic electric heating module is arranged below the heat pipe.

6. The ceramic electrically heated inner tank assembly according to claim 1, characterized in that: The ceramic electric heating liner assembly includes two ceramic electric heating modules, one of which is arranged below the heat pipe, and the other is arranged above the heat pipe.

7. An electric water heater, comprising a housing, characterized in that: The inner liner adopts the ceramic electric heating inner liner assembly as described in any one of claims 1 to 6, and the inner liner is arranged in the outer shell.

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