CN218901020U - Filtering component and electric water heating equipment - Google Patents

Abstract

The utility model relates to the field of living appliances, and provides a filter assembly and electric water heating equipment. The filter assembly includes: the cylindrical filter element is axially provided with a water outlet, the outer side surface of the cylindrical filter element forms a water inlet side, and the cylindrical filter element surrounds the inner side surface of the water outlet to form a water outlet side; the top cap and base, the top cap seal is fixed in the axial one end of column filter core, the base seal is fixed in the axial other end of column filter core, the base is facing away from the one end extension of column filter core has the grafting end, the base is equipped with and runs through the play water through-hole of grafting end, go out water through-hole with go out water hole intercommunication. The filtering component has high filtering efficiency, is convenient to assemble and disassemble and is convenient to clean.

Description

Filtering component and electric water heating equipment

Technical Field

The utility model relates to the technical field of living appliances, in particular to a filtering component and electric water heating equipment.

Background

When the water is heated, some carbonates in the water are separated out and crystallized due to the reduced solubility, so that scale is formed, a lot of scale floats in the water, the water often enters a human body along with the water when the water is drunk, the scale disturbs the drinking boiled water sanitation of people for a long time, and the water with high hardness is more obvious. Most of the existing filter products are pre-filtration, such as RO membrane (reverse osmosis membrane) filtration, which filters out all ions, so that although scale is not generated, beneficial mineral ions such as calcium ions, magnesium ions, iron ions and the like required by human bodies are filtered out. In some ion exchange resins, the sodium ions are replaced with the calcium ions and magnesium ions, so that the sodium ions in water are increased, which corresponds to the increase of salt taken in by people, and hypertension is likely to occur. The pre-filtration of PP film (polypropylene film), active carbon, ultrafiltration and the like can not filter out ionic calcium ions and magnesium ions, and no way is provided for reducing the generation of scale. The post-filtration can enable the scale to be separated out in the heating filtration, and then the separated scale is filtered out. Mineral ions that are not precipitated and dissolved in water can remain in the water. However, the existing post-filter has low filtering efficiency and is very inconvenient to clean.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a filter assembly which has high filter efficiency, is convenient to assemble and disassemble and is convenient to clean.

The utility model also provides electric water heating equipment.

A filter assembly according to an embodiment of the utility model comprises:

the cylindrical filter element is axially provided with a water outlet, the outer side surface of the cylindrical filter element forms a water inlet side, and the cylindrical filter element surrounds the inner side surface of the water outlet to form a water outlet side;

the top cap and base, the top cap seal is fixed in the axial one end of column filter core, the base seal is fixed in the axial other end of column filter core, the base is facing away from the one end extension of column filter core has the grafting end, the base is equipped with and runs through the play water through-hole of grafting end, go out water through-hole with go out water hole intercommunication.

According to the embodiment of the utility model, the pore space of the columnar filter element is 0.1um-8um.

According to the embodiment of the utility model, the columnar filter element is any one of a porous ceramic filter element, a metal net filter element, a porous metal plate filter element or a high-temperature-resistant plastic net filter element.

According to an embodiment of the utility model, the columnar filter element is a hollow cylindrical filter element;

or, the columnar filter element comprises a plurality of cylindrical filter elements which are arranged in parallel, and the cylindrical filter elements are all provided with central through holes;

or, the columnar filter element is a cylindrical filter element and is provided with a plurality of filter holes extending along the axial direction of the cylindrical filter element;

or, the columnar filter element is a special-shaped hollow filter element, and the side surface of the special-shaped hollow filter element forms a continuous cambered surface with alternate concavities and convexities.

According to the embodiment of the utility model, the two ends of the columnar filter element are respectively bonded with the top cover and the base through sealant.

According to the embodiment of the utility model, sealing rubber gaskets are respectively arranged between the two ends of the columnar filter element and the top cover and the base, and the sealing rubber gaskets are tightly pressed between the two ends of the columnar filter element and the top cover and the base through fasteners;

or sealing rubber gaskets are respectively arranged between the two ends of the columnar filter element and the top cover and the base, and the sealing rubber gaskets are pressed between the two ends of the columnar filter element and the top cover and the base through hot plate welding or ultrasonic welding;

or, seal rubber gaskets are respectively arranged between the two ends of the columnar filter element and the top cover and between the columnar filter element and the base, and the two ends of the columnar filter element are respectively buckled with the top cover and the base so as to compress the seal rubber gaskets.

According to the embodiment of the utility model, a step surface is formed between the plug end and the base, and the outer diameter of the plug end is smaller than that of the base.

According to the embodiment of the utility model, the top cover is fixedly connected with the columnar filter element through a screw.

The embodiment of the utility model also provides electric water heating equipment, which comprises:

the shell component is provided with a water outlet;

the bottom of the inner container assembly is provided with a mounting interface, the inner container assembly is arranged in the shell assembly, and a gap is reserved between the inner container assembly and at least one side of the shell assembly, which is provided with the water outlet;

the end cover assembly is connected with the shell assembly in an openable and closable manner and is covered on the liner assembly;

the filter assembly is arranged in the liner assembly and is detachably arranged on the mounting interface;

one end of the water pump is connected with the water outlet through hole, the other end of the water pump is connected with the water outlet through a water outlet pipeline, and the water outlet pipeline is arranged along the gap.

According to the embodiment of the utility model, the plug-in end is detachably inserted into the mounting interface, and a sealing ring is sleeved outside the plug-in end.

The above technical solutions in the embodiments of the present utility model have at least one of the following technical effects:

according to the filtering component provided by the embodiment of the utility model, the columnar filter element is adopted, the top cover is sealed and fixed at one axial end of the columnar filter element, the base is sealed and fixed at the other axial end of the columnar filter element, so that the two ends of the columnar filter element can be sealed, water can be ensured to enter the columnar filter element from the outer side surface of the columnar filter element, namely enter the inner side surface of the columnar filter element, and unfiltered water enters the inner side surface of the columnar filter element from the outer side surface of the columnar filter element, so that filtered drinking water is formed; namely, the filtering path is only limited to enter the inner side surface of the columnar filter element from the outer side surface of the columnar filter element so as to prevent water from directly flowing out of the columnar filter element without passing through the filtering material, thereby ensuring the filtering effect of the water; and the base extends towards the one end that deviates from the columnar filter core and has the grafting end, and the base is equipped with the play water through-hole that runs through the grafting end, and play water through-hole and the axial apopore intercommunication of columnar filter core through setting up the grafting end, can be convenient for filter component installation and dismantlement, the filter component of being convenient for regularly washs.

The electric water heating device provided by the embodiment of the utility model has all the advantages of the filtering component and is not repeated here.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic axial sectional view of an electric water heating apparatus according to an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic axial cross-sectional view of embodiment 1 of the filter assembly provided by the present utility model;

FIG. 4 is a schematic perspective view of FIG. 3;

FIG. 5 is a schematic axial cross-sectional view of embodiment 2 of the filter assembly provided by the present utility model;

FIG. 6 is a schematic perspective view of FIG. 5;

FIG. 7 is a schematic axial cross-sectional view of embodiment 3 of the filter assembly provided by the present utility model;

FIG. 8 is a schematic cross-sectional structure of FIG. 7;

FIG. 9 is a schematic axial cross-sectional view of embodiment 4 of the filter assembly provided by the present utility model;

fig. 10 is a schematic perspective view of fig. 9.

Reference numerals:

100. a filter assembly; 101. a columnar filter element; 102. a top cover; 103. a base; 104. a plug-in end; 105. a seal ring; 106. sealing rubber cushion; 107. sealing glue; 108. a central through hole; 109. filtering holes; 110. a fastener; 120. a cylindrical filter element; 130. a profiled hollow filter element;

200. a liner assembly; 300. a water pump; 400. a water outlet pipeline; 500. a water outlet; 600. an end cap assembly; 700. a housing assembly.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The filter aims at solving the problems that the filtering efficiency of the post filter in the prior art is low and the cleaning is very inconvenient.

In order to solve the above-mentioned technical problems, referring to fig. 1 to 10, an embodiment of the present utility model provides a filter assembly 100. The filter assembly 100 mainly comprises a columnar filter element 101, and a top cover 102 and a base 103 which are arranged at two ends of the columnar filter element 101.

Specifically, the outer side surface of the columnar filter element 101 forms the water inlet side, the inner side surface forms the water outlet side, the outer side surface of the columnar filter element 101 is the outer peripheral surface of the columnar filter element 101, and compared with a planar filter element, the columnar filter element 101 has larger filtering area and better filtering effect.

Specifically, the top cover 102 is fixed on one axial end of the columnar filter element 101 in a sealing manner, the base 103 is fixed on the other axial end of the columnar filter element 101 in a sealing manner, so that two ends of the columnar filter element 101 can be sealed, water can be ensured to enter the columnar filter element 101 from the outer side surface of the columnar filter element 101, namely enter the inner side surface of the columnar filter element 101, and unfiltered water enters the inner side surface of the columnar filter element 101 from the outer side surface of the columnar filter element 101 to form filtered drinking water; that is, the filtering path is limited to only enter the inner side surface of the columnar filter element 101 from the outer side surface of the columnar filter element 101, so that water is prevented from directly flowing out through the filter material, and the filtering effect of the water is ensured. And by providing the top cover 102 and the base 103, the filtered water is also prevented from flowing back into the unfiltered water.

In this embodiment, the columnar filter element 101 has a water outlet in the axial direction, and the inner wall surface of the water outlet is the inner surface of the columnar filter element 101.

Further, the base 103 extends towards one end deviating from the columnar filter element 101 and is provided with a plug end 104, the base 103 is provided with a water outlet through hole penetrating through the plug end 104, the water outlet through hole is communicated with the water outlet side, namely the water outlet, of the columnar filter element 101, and the filter assembly 100 can be conveniently installed and detached by arranging the plug end 104. In a specific application scenario, the filter assembly 100 is installed on an installation interface arranged at the bottom of the liner of the electric thermos bottle, the plug end 104 is matched with the installation interface, the filter assembly 100 can be installed by directly inserting the plug end 104 into the installation interface, and when the filter assembly 100 needs to be cleaned, the filter assembly 100 can be pulled out by force directly. When the filter assembly 100 is cleaned, the whole filter assembly 100 can be put into citric acid solution to be boiled for a few minutes, and the filter assembly is taken out to be washed cleanly after the scale on the outer side surface of the columnar filter element 101 is completely dissolved.

In this embodiment, the water outlet hole of the columnar filter element 101 is communicated with the water outlet through hole of the plug end 104, so that filtered water can flow through the water outlet through hole from the water outlet hole and then be conveyed from the water outlet pipeline 400 mentioned below.

In this embodiment, the plugging end 104 and the base 103 are integrally formed, and in addition, the end of the plugging end 104 may be configured as a frustum with taper, and the small end of the frustum is one end far away from the base 103, so as to facilitate plugging.

Through the above-mentioned embodiment, it can be seen that the columnar filter element 101 of this embodiment has large filtration area, large filtration water yield, and strong filtration capacity, plays the isolation seal effect through setting up top cap 102 and base 103 to the both ends of columnar filter element 101, prevents that water from directly flowing out through the filter media, guarantees the filter effect of water, also can prevent that the water after filtering from flowing back to unfiltered water.

The pore size of the columnar filter element 101 is smaller than that of the scale, so that the scale in water can be blocked, the scale size is distributed between 3um and 200um, and the 90% scale size is about 8mm, in order to ensure that most scale can be filtered, the pore size of the columnar filter element 101 is selected to be 0.1um to 8um, of course, the smaller the pore size is, the better the filtering efficiency is, but the larger the filtering pressure is, the slower the filtering speed is, so that the pore size of the columnar filter element 101 can be properly selected.

In some embodiments of the present utility model, the columnar filter 101 may be made of porous ceramic, metal mesh, porous metal plate, or high temperature resistant plastic mesh, etc., to form a porous ceramic filter, metal mesh filter, porous metal plate filter, or high temperature resistant plastic mesh filter. The material of the corresponding filter element can be selected according to actual needs, for example, the proper material of the filter element can be selected according to different water qualities in different areas.

According to embodiments of the present utility model, the columnar filter element 101 may have various structural forms.

Form one:

as shown in fig. 3 and 4, the columnar filter element 101 is a hollow cylindrical filter element 120, so that the processing is convenient, the processing efficiency is high, and the cost is controllable.

Form two:

as shown in fig. 5 and 6, the columnar filter element 101 includes a plurality of cylindrical filter elements 120 arranged in parallel, and the plurality of cylindrical filter elements 120 are each provided with a central through hole 108, so that the filtering area can be increased, and the filtering capacity can be improved.

Form three:

as shown in fig. 7 and 8, the cylindrical filter element 101 is a cylindrical filter element 120, and the cylindrical filter element 120 is provided with a plurality of filter holes 109 extending along the axial direction thereof, so as to form a honeycomb briquette-like form, thereby increasing the filtering area and improving the filtering capability.

Form four:

as shown in fig. 9 and 10, the columnar filter element 101 is a special-shaped hollow filter element 130, the side surfaces of the special-shaped hollow filter element 130 form continuous cambered surfaces with alternate concavities and convexities, and the extending directions of the concavities and convexities are along the axial direction of the special-shaped hollow filter element 130, so that the filtering area can be increased, and the filtering capability can be improved.

Based on any of the above embodiments, in order to ensure reliable connection between the top cover 102 and the base 103 and the two ends of the columnar filter element 101, the two ends of the columnar filter element 101 are respectively bonded with the top cover 102 and the base 103 through sealant 107.

Based on any of the above embodiments, the case where the top cover 102, the base 103 and the two ends of the columnar filter element 101 are connected in a sealing manner by the sealing rubber pad 106 is divided into the following three fastening manners.

Fastening mode one:

sealing rubber gaskets 106 are respectively arranged between the two ends of the columnar filter element 101 and the top cover 102 and the base 103, and the sealing rubber gaskets 106 are pressed between the two ends of the columnar filter element 101 and the top cover 102 and the base 103 through fasteners 110 such as screws, so that reliable sealing is formed.

Fastening mode II:

the sealing rubber gaskets 106 are respectively arranged between the two ends of the columnar filter element 101 and the top cover 102 and the base 103, the sealing rubber gaskets 106 are pressed between the two ends of the columnar filter element 101 and the top cover 102 and the base 103 through hot plate welding or ultrasonic welding, when the columnar filter element is installed, the sealing rubber gaskets 106 are firstly placed at one end of the columnar filter element 101, the top cover 102 is covered, then the top cover 102 and the end part of the columnar filter element 101 are welded together through hot plate welding or ultrasonic welding, so that the sealing rubber gaskets 106 are pressed between the top cover 102 and the end part of the columnar filter element 101, sealing is realized, and the welding mode of the base 103 and the end part of the columnar filter element 101 is the same as the welding mode of the top cover 102 and the end part of the columnar filter element 101, and is not repeated here.

Fastening mode III:

sealing rubber gaskets 106 are respectively arranged between the two ends of the columnar filter element 101 and the top cover 102 and the base 103, and the two ends of the columnar filter element 101 are respectively buckled with the top cover 102 and the base 103 to compress the sealing rubber gaskets 106, for example, the two ends of the columnar filter element 101 are respectively provided with a buckle or a clamping groove, the peripheries of the top cover 102 and the base 103 are respectively provided with a clamping groove or a buckle, and the sealing rubber gaskets 106 are compressed between the two ends of the columnar filter element 101 and the top cover 102 and the base 103 through the buckling of the clamping grooves and the buckles.

The top cover 102 may be directly and fixedly connected with the columnar filter element 101 through a screw. The mounting mode of the top cover 102 and the columnar filter element 101 can be selected by a person skilled in the art according to actual needs.

In order to facilitate the installation of the plug end 104, according to the embodiment of the utility model, a step surface is formed between the plug end 104 and the base 103, and the outer diameter of the plug end 104 is smaller than the outer diameter of the base 103, so that the outer diameter of the plug end 104 is also convenient to flexibly set to adapt to installation interfaces with different calibers.

Further, the peripheries of the top cover 102 and the base 103 can be provided with a circle of flanges, so that the positioning and quick installation of the two ends of the top cover 102, the base 103 and the columnar filter element 101 are facilitated.

As shown in fig. 1 and 2, the embodiment of the present utility model further provides an electric water heating device, which may be a conventional electric water heating bottle, an electric water heating bottle, or the like, and the filter assembly 100 of the present embodiment may be installed on any device that is easy to generate scale by electric heating.

The electric water heating device of this embodiment specifically includes:

the shell assembly 700 is provided with a water outlet 500, and a switch can be arranged at the water outlet 500 for controlling the start and stop of drinking water.

The bottom of the inner container assembly 200 is provided with the installation interface, the installation interface penetrates through the inner container assembly 200, the installation interface is arranged at the bottom of the inner container assembly 200 at a better setting position, the filter assembly 100 is convenient to install, the inner container assembly 200 is arranged in the shell assembly 700, the inner container assembly 200 is detachable relative to the shell assembly 700, and the inner container assembly 200 is convenient to clean regularly.

In short, an annular gap may be left between the outer peripheral surface of the liner assembly 200 and the inner peripheral surface of the housing assembly 700, or one side of the liner assembly 200 is abutted against the housing assembly 700, and a gap is formed between the other side of the liner assembly 200 and the housing assembly 700, and is close to the water outlet 500 side, so as to leave a wiring space for the water outlet pipeline 400.

The end cover assembly 600 is connected with the shell assembly 700 in an openable and closable manner, and covers the liner assembly 200, and one side of the end cover assembly 600 can be hinged with the shell assembly 700 through a hinge, so that the opening and closing are facilitated.

The filter assembly 100 is arranged in the liner assembly 200 and is detachably mounted on the mounting interface, so that the filter assembly has the function of filtering water in the liner assembly 200 and is convenient to assemble and disassemble.

The water pump 300 is arranged between the shell assembly 700 and the liner assembly 200 and is close to the filter assembly 100, one end of the water pump 300 is connected to the water outlet through hole, the other end of the water pump 300 is connected to the water outlet 500 through the water outlet pipeline 400, the water outlet pipeline 400 is arranged along the gap, suction force is provided for filtered water on the water outlet side through the water pump 300, water can be accelerated to be filtered through the columnar filter element 101, and power is provided for the filtered water to the water outlet 500.

In a specific embodiment, the plug end 104 is removably inserted into the mounting interface, so that the cylindrical filter element 101 can be used for a long period of time, and then can be removed for cleaning. The plug end 104 is sleeved with a sealing ring 105 for sealing when the plug end is assembled on an electric hot water bottle, the sealing ring 105 can also be installed in an installation interface, and the plug end 104 can realize sealing when being inserted into the installation interface and can be specifically selected according to practical situations.

In addition, the electric heating assembly and the control mechanism disposed at the bottom of the liner assembly 200 may adopt an existing manner, which will not be described herein.

The above embodiments are only for illustrating the present utility model, and are not limiting of the present utility model. While the utility model has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and it is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. A filter assembly, comprising:

the cylindrical filter element is axially provided with a water outlet, the outer side surface of the cylindrical filter element forms a water inlet side, and the cylindrical filter element surrounds the inner side surface of the water outlet to form a water outlet side;

the top cap and base, the top cap seal is fixed in the axial one end of column filter core, the base seal is fixed in the axial other end of column filter core, the base is facing away from the one end extension of column filter core has the grafting end, the base is equipped with and runs through the play water through-hole of grafting end, go out water through-hole with go out water hole intercommunication.

2. The filter assembly of claim 1, wherein the columnar filter element has an aperture of 0.1um to 8um.

3. The filter assembly of claim 1, wherein the columnar filter element is any one of a porous ceramic filter element, a metal mesh filter element, a porous metal plate filter element, or a high temperature resistant plastic mesh filter element.

4. The filter assembly of claim 1, wherein the cylindrical filter element is a hollow cylindrical filter element;

or, the columnar filter element comprises a plurality of cylindrical filter elements which are arranged in parallel, and the cylindrical filter elements are all provided with central through holes;

or, the columnar filter element is a cylindrical filter element and is provided with a plurality of filter holes extending along the axial direction of the cylindrical filter element;

or, the columnar filter element is a special-shaped hollow filter element, and the side surface of the special-shaped hollow filter element forms a continuous cambered surface with alternate concavities and convexities.

5. The filter assembly of any of claims 1-4, wherein the ends of the columnar filter element are bonded to the top cover and the base by a sealant, respectively.

6. The filter assembly of any of claims 1-4, wherein sealing gaskets are respectively arranged between the two ends of the columnar filter element and the top cover and the base, and the sealing gaskets are pressed between the two ends of the columnar filter element and the top cover and the base through fasteners;

or sealing rubber gaskets are respectively arranged between the two ends of the columnar filter element and the top cover and the base, and the sealing rubber gaskets are pressed between the two ends of the columnar filter element and the top cover and the base through hot plate welding or ultrasonic welding;

or, seal rubber gaskets are respectively arranged between the two ends of the columnar filter element and the top cover and between the columnar filter element and the base, and the two ends of the columnar filter element are respectively buckled with the top cover and the base so as to compress the seal rubber gaskets.

7. The filter assembly of any of claims 1-4, wherein the plug end and the base form a stepped surface therebetween, the plug end having an outer diameter that is less than an outer diameter of the base.

8. The filter assembly of any of claims 1-4, wherein the top cap is fixedly attached to the cylindrical filter element by screws.

9. An electric water heating apparatus, comprising:

the shell component is provided with a water outlet;

the bottom of the inner container assembly is provided with a mounting interface, the inner container assembly is arranged in the shell assembly, and a gap is reserved between the inner container assembly and at least one side of the shell assembly, which is provided with the water outlet;

the end cover assembly is connected with the shell assembly in an openable and closable manner and is covered on the liner assembly;

the filter assembly of any one of claims 1-8, disposed in the liner assembly and removably mounted to the mounting interface;

one end of the water pump is connected with the water outlet through hole, the other end of the water pump is connected with the water outlet through a water outlet pipeline, and the water outlet pipeline is arranged along the gap.

10. The electric water heating apparatus of claim 9, wherein the plug-in terminal is detachably inserted into the mounting interface, and a seal ring is sleeved outside the plug-in terminal.

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