CN219550848U - Electric water heater - Google Patents

Abstract

The utility model discloses an electric water heater, which comprises a shell, wherein the shell is provided with a water inlet and a water outlet; the sheath, the sheath includes first adapter sleeve and second adapter sleeve, wherein, first adapter sleeve card is located the inlet opening, the second adapter sleeve card is located the apopore, but first adapter sleeve and second adapter sleeve telescopic connection. The beautiful appearance of the electric water heater is improved by arranging the sheath; the first connecting sleeve and the second connecting sleeve are in telescopic connection, namely, the distance between the first connecting sleeve and the second connecting sleeve is adjustable, the first connecting sleeve and the second connecting sleeve can be adjusted in length according to the hole distance between the water inlet hole and the water outlet hole of the shell, the installation of the hole distance between the water inlet hole and the water outlet hole of the shell in a certain length range can be met, namely, the sheath with the same specification can be suitable for the installation of various hole distances, and the practical production and processing are convenient.

Description

Electric water heater

Technical Field

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

Background

With the development of society and the acceleration of life rhythm, the demand of people for hot water is also becoming more and more common. Therefore, a water heater capable of generating hot water is a household appliance commonly used in daily life of people. At present, water heaters are classified into electric water heaters, gas water heaters, heat pump water heaters, solar water heaters and the like. The electric water heater is widely used because of its convenient installation and use. The electric water heater generally comprises a shell, an inner container and an electric heater, wherein the inner container is arranged in the shell, and an insulating layer is formed between the shell and the inner container to improve the insulating performance of the inner container. The electric heater is inserted into the inner container, and is electrified to generate heat so as to heat water in the inner container.

The water inlet pipe and the water outlet pipe are respectively welded on the inner container, and holes are formed in corresponding positions on the shell, so that the water inlet pipe and the water outlet pipe can conveniently penetrate and carry out subsequent water pipe installation. For convenient installation, the aperture of the hole on the shell is larger than the outer diameters of the water inlet pipe and the water outlet pipe. In order to enhance the aesthetic effect, it is often necessary to install a shutter over the aperture in the housing. Currently, existing occlusion panels include: the connecting plastic sleeves are of a cylindrical structure and comprise a first connecting end and a second connecting end, the first connecting end is in an opening shape, and a connecting hole is formed in the bottom of the second connecting end; the connecting plastic sleeves are connected into an integrated structure through the connecting pieces, and the connecting pieces are provided with conformal surfaces which are matched with the inner wall of the shell; the first connecting end extends to the outer side of the connecting piece to form a first positioning part, and the outer side of the connecting hole is formed with a second positioning part.

And because the installation distance of the water inlet pipe and the water outlet pipe on the inner container is inconsistent, the holes on the shielding shell are required to be installed by shielding pieces with different lengths, so that the shielding pieces with a plurality of sizes are caused, and the inconvenience is caused for actual processing and production. In view of this, how to design a shielding sheet suitable for installation on different hole pitches within a certain range on the shell of an electric water heater is a technical problem to be solved by the utility model.

Disclosure of Invention

The utility model provides an electric water heater, which realizes that a shielding sheet can be suitable for being installed on different hole distances in a certain range on an electric water heater shell.

In order to achieve the technical purpose, the utility model is realized by adopting the following technical scheme:

in one aspect, the present utility model provides an electric water heater comprising:

the shell is provided with a water inlet and a water outlet;

the sheath, the sheath includes first adapter sleeve and second adapter sleeve, wherein, first adapter sleeve card is located the inlet opening, the second adapter sleeve card is located the apopore, but first adapter sleeve and second adapter sleeve telescopic connection.

Compared with the prior art, the utility model has the advantages and positive effects that: the jacket comprises the first connecting sleeve and the second connecting sleeve, wherein the first connecting sleeve is clamped in the water inlet hole of the shell, and the second connecting sleeve is clamped in the water outlet hole of the shell, so that the attractiveness of the electric water heater is improved; the first connecting sleeve and the second connecting sleeve are in telescopic connection, namely, the distance between the first connecting sleeve and the second connecting sleeve is adjustable, the first connecting sleeve and the second connecting sleeve can be adjusted in length according to the hole distance between the water inlet hole and the water outlet hole of the shell, the installation of the hole distance between the water inlet hole and the water outlet hole of the shell in a certain length range can be met, namely, the sheath with the same specification can be suitable for the installation of various hole distances, and the practical production and processing are convenient.

In some embodiments of the present utility model, the sheath further includes a connecting member, one end of the connecting member is connected to the first connecting sleeve, the other end of the connecting member is connected to the second connecting sleeve, and the first connecting sleeve and the second connecting sleeve are telescopically connected through the connecting member.

Through setting up the connecting piece, the connecting piece is connected first adapter sleeve and second adapter sleeve to make first adapter sleeve, second adapter sleeve and connecting piece form a whole, improved the pleasing to the eye degree of shell.

In some embodiments of the utility model, the connector is in a corrugated plate structure and is adapted to the curvature of the outer wall of the housing.

The connecting piece is of a corrugated plate structure, so that the occupied space of the connecting piece is reduced, and the expansion and contraction are convenient; the connecting piece is matched with the curvature of the outer wall of the shell, so that the connecting piece is more attached to the shell, and the attractive effect is improved.

In some embodiments of the utility model, the connector is made of an elastic material.

In some embodiments of the utility model, the first connection sleeve and the second connection sleeve each comprise: the main sleeve is of a barrel-shaped structure with an opening at the upper end, and a mounting hole is formed in the bottom of the main sleeve.

In some embodiments of the utility model, each of the first and second connection sleeves further comprises: the panel is arranged at the opening end of the main sleeve in a surrounding mode, the panel is connected with the connecting piece, and the size of the panel is larger than that of the water inlet hole and the size of the water outlet hole.

Through setting up the panel, the panel ring is located main telescopic open end, is connected with the connecting piece, and the panel size is greater than the inlet opening with the size of outlet hole, the panel can cover inlet opening and outlet hole on the shell like this, has improved holistic pleasing to the eye effect.

In some embodiments of the utility model, each of the first and second connection sleeves further comprises: the limiting piece is positioned on the outer side of the main sleeve and connected with the main sleeve or the panel, the limiting piece and the main sleeve are both positioned on the same side of the panel, and the limiting piece can penetrate through the water inlet hole and the water outlet hole and limit the shell wall of the shell between the panel and the limiting piece.

The limiting piece is arranged on the outer side of the main sleeve, and is connected with the main sleeve or connected with the panel, and the limiting piece and the main sleeve are both arranged on the same side of the panel, and can penetrate through the water inlet and the water outlet and limit the shell wall of the shell between the panel and the limiting piece, so that the sheath can be more stably arranged on the water inlet and the water outlet of the shell under the mutual matching of the limiting piece and the panel; or the sheath can be more stably arranged on the water inlet hole and the water outlet hole of the shell under the mutual matching of the limiting piece, the panel and the main sleeve.

In some embodiments of the utility model, the limiter comprises: the cutting ferrule, the cutting ferrule annular set up in the barrel outside of main sleeve and with the panel is connected, the external diameter of cutting ferrule with the inlet opening with the aperture looks adaptation of apopore.

Through setting up the cutting ferrule, the cutting ferrule annular sets up in main telescopic barrel outside and is connected with the panel, and the external diameter of cutting ferrule and the aperture looks adaptation of inlet port and apopore, like this, the cutting ferrule can improve the structural strength of panel with the connection of panel.

In some embodiments of the utility model, the limiter further comprises: the first positioning protrusion is arranged on one side of the clamping sleeve, which is opposite to the cylinder body of the main sleeve, in a protruding mode, and the distance between the first positioning protrusion and the panel is matched with the thickness of the shell.

Through setting up first location arch, the protruding one side of locating sleeve barrel of cutting ferrule dorsad main sleeve of first location is protruding, and the distance between first location arch and the panel looks adaptation with the thickness of shell, like this, first location arch can pass the inlet opening and the apopore of shell, inject the shell wall of shell between first location arch and panel, has improved overall structure's stability.

In some embodiments of the utility model, the limiter comprises: the second positioning protrusion is arranged on the outer side of the cylinder body of the main sleeve in a protruding mode, and the distance between the second positioning protrusion and the panel is matched with the thickness of the shell.

Through setting up the second location arch, the protruding outside of locating main telescopic of second location is protruding, and the distance between second location arch and the panel and the thickness looks adaptation of shell, and main sleeve passes through panel and the protruding stable card of second location on the shell like this.

Drawings

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

Fig. 1 is a schematic structural diagram of an electric water heater according to an embodiment of the present disclosure;

fig. 2 is an exploded view of an electric water heater according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a jacket according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of another jacket structure provided in an embodiment of the present disclosure;

FIG. 5 is a schematic view of a jacket according to an embodiment of the present disclosure;

fig. 6 is a cross-sectional view taken along the direction A-A in fig. 5.

Reference numerals illustrate:

the shell 10, the water inlet 101 and the water outlet 102;

a sheath 20;

a first connection sleeve 30;

a second connecting sleeve 40;

a connecting member 50;

the main sleeve 60, the panel 601, the limiter 602, the ferrule 6021, the first positioning boss 6022, the mounting hole 603, and the flange 604.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships 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 apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. 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 utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model 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 the high-temperature heat generated after the electric energy is electrified directly heats water stored in the electric water heater so as to achieve the purpose of preparing hot water.

The electric water heater generally comprises a water tank, an electric heating component, an electric control board 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 by the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off so as to heat the water in the water tank to a set temperature.

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

In addition, the heat preservation that forms between shell and the inner bag, the heat preservation material that commonly uses has: asbestos, sponge, foam, polyurethane foam, etc., and in order to obtain a good heat-insulating effect, in the conventional technology, a heat-insulating layer is usually formed by adopting a foaming mode.

For the liner adopting the metal liner body, the inside of the liner is easy to corrode due to the influence of water quality, and therefore, the water tank is also provided with a magnesium rod which is inserted into a water storage cavity in the water tank.

Since magnesium is the lowest potential metal in the electrochemical sequence, it is physiologically non-toxic. Therefore, the magnesium rod protective liner is very ideal to be used for manufacturing the magnesium rod protective liner. The size of the magnesium rod is directly related to the time of protecting the liner and the protecting effect, and the larger the magnesium rod is, the better the protecting effect is and the longer the protecting time is.

For the electric heating component, electric heating modes such as electric heating wires, magnetic energy or silicon tube heating can be adopted to heat water stored in the water storage cavity.

For the electric control board, the electric control board is used for receiving detection signals sent by related sensors (such as a water temperature sensor and a flow sensor) and controlling the electric heating component to be powered on and powered off.

When the electric water heater works, the electric heating component is controlled by the electric control board to be electrified and heated, and when the water temperature of the water in the water tank reaches a set value, the electric heating component is controlled by the electric control board to be powered off.

The water tank is also provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is used for conveying cold water into a water storage cavity formed in the water tank, and hot water in the water storage cavity is output from the water outlet pipe.

As shown in fig. 1-6, an embodiment of the present disclosure provides an electric water heater including a housing 10 and a jacket 20. The shell 10 is provided with a water inlet hole 101 and a water outlet hole 102; the sheath 20 comprises a first connecting sleeve 30 and a second connecting sleeve 40, wherein the first connecting sleeve 30 is clamped in the water inlet 101, the second connecting sleeve 40 is clamped in the water outlet 102, and the first connecting sleeve 30 and the second connecting sleeve 40 are connected in a telescopic manner.

By adopting the electric water heater provided by the embodiment of the disclosure, through arranging the sheath 20, the sheath 20 comprises the first connecting sleeve 30 and the second connecting sleeve 40, wherein the first connecting sleeve 30 is clamped in the water inlet 101 of the shell 10, and the second connecting sleeve 40 is clamped in the water outlet 102 of the shell 10, so that the aesthetic degree of the electric water heater is improved.

The first connecting sleeve 30 and the second connecting sleeve 40 are in telescopic connection, namely, the distance between the first connecting sleeve 30 and the second connecting sleeve 40 is adjustable, the first connecting sleeve 30 and the second connecting sleeve 40 can be adjusted in length according to the hole distance between the water inlet 101 and the water outlet 102 of the shell 10, the installation of the hole distance between the water inlet 101 and the water outlet 102 of the shell 10 in a certain length range can be met, namely, the sheath 20 with the same specification can be suitable for the installation of various hole distances, and the practical production and processing are convenient and the use universality is improved.

In the actual installation process, for example, the first connecting sleeve 30 and the second connecting sleeve 40 may be properly stretched according to the distance between the water inlet 101 and the water outlet 102 on the casing 10, and the first connecting sleeve 30 is clamped on the water inlet 101, and then the second connecting sleeve 40 is clamped on the water outlet 102, so as to complete the installation of the sheath 20 on the casing 10. The water inlet pipe is inserted into the first connecting sleeve 30 for the installation of the water inlet pipe, and the water outlet pipe is inserted into the second connecting sleeve 40 for the installation of the water outlet pipe. Of course, the installation of the water inlet pipe, the water outlet pipe and the sheath 20 is not limited to the above-described manner.

As shown in connection with fig. 2 and 3, in some alternative embodiments, the sheath 20 further includes a connection member 50, one end of the connection member 50 is connected to the first connection sleeve 30, the other end of the connection member 50 is connected to the second connection sleeve 40, and the first connection sleeve 30 and the second connection sleeve 40 are telescopically connected through the connection member 50.

Specifically, by providing the connecting member 50, the connecting member 50 forms the first connecting sleeve 30, the second connecting sleeve 40 and the connecting member 50 as a whole, thereby improving the aesthetic effect of the housing 10.

It can be appreciated that the connecting piece 50 and the first connecting sleeve 30 may be an integral structure or a split assembly structure; the connecting piece 50 and the second connecting sleeve 40 may be of an integral structure or a split assembly structure, and specifically, may be set according to practical use requirements.

In some alternative embodiments, as shown in connection with fig. 4, the connector 50 is in a corrugated plate-like configuration and is adapted to the curvature of the outer wall of the housing 10.

Specifically, the connecting piece 50 is in a corrugated plate structure, so that the occupied space of the connecting piece 50 is reduced, the initial length of the connecting piece 50 is reduced, and the expansion and contraction of the connecting piece 50 are facilitated.

The outer casing 10 of the water heater is generally cylindrical, and the connecting piece 50 is matched with the curvature of the outer wall of the outer casing 10, namely, the curved radian of the connecting piece 50 is matched with the diameter of the outer wall of the outer casing 10, so that the connecting piece 50 can be more attached to the outer casing 10.

In some alternative embodiments, the connector 50 is made of an elastomeric material.

Specifically, the material of the connecting member 50 may be one or more of rubber material, elastic plastic or metal elastic component. For example, the rubber material may be silica gel, natural rubber, or the like. It is understood that the materials used for the connector 50 include, but are not limited to, the above.

As shown in connection with fig. 3 and 4, in some alternative embodiments, each of the first and second connection sleeves 30 and 40 includes a main sleeve 60, the main sleeve 60 having a tub-shaped structure with an upper end opened, and a mounting hole 603 provided at a bottom of the main sleeve 60, the mounting hole 603 being configured to allow a water inlet pipe or a water outlet pipe of the electric water heater to pass therethrough.

Specifically, the first connecting sleeve 30 and the second connecting sleeve 40 each include a main sleeve 60, the main sleeve 60 is in a barrel-shaped structure with an opening at the upper end, that is, the main sleeve 60 is provided with a containing cavity, and the containing cavity can facilitate the installation of a water inlet pipeline and a water outlet pipeline of the electric water heater.

The bottom of the main sleeve 60 is provided with a mounting hole 603, which is convenient for the main sleeve 60 to be inserted into the water inlet hole 101 and the water outlet hole 102 of the shell 10, and the size and shape of the mounting hole 603 are matched with those of the water inlet pipe and the water outlet pipe.

For practical installation, the main sleeve 60 tapers from the open end toward the bottom.

As shown in fig. 6, the bottom of the main sleeve 60 is provided with a flange 604 along the circumference of the mounting hole 603, and the provision of the flange 604 increases the contact area of the mounting hole 603 with the water inlet pipe and the water outlet pipe, which is beneficial to reducing the deformation of the mounting hole 603.

As shown in connection with fig. 3 and 5, in some alternative embodiments, the first connecting sleeve 30 and the second connecting sleeve 40 each further comprise: the panel 601, the panel 601 is located the open end of main sleeve 60 around, and panel 601 is connected with connecting piece 50, and the size of panel 601 is greater than the size of inlet port 101 and apopore 102.

Specifically, by providing the panel 601 at the open end of the main sleeve 60, and connecting the panel 601 with the connector 50, on the one hand, the panel 601 serves as a connection, i.e., connects the connector 50 with the main sleeve 60; on the other hand, the size of the panel 601 is larger than the sizes of the water inlet 101 and the water outlet 102, so that the panel 601 can cover the water inlet 101 and the water outlet 102 on the casing 10, the whole main sleeve 60 is prevented from sliding into the casing 10, and meanwhile, the whole attractive effect is improved.

It can be appreciated that the surface of the panel 601 may be patterned according to actual situations, thereby improving the aesthetic appearance.

In some alternative embodiments, as shown in connection with fig. 4, the first connecting sleeve 30 and the second connecting sleeve 40 each further comprise: the limiting piece 602 is located on the outer side of the main sleeve 60 and is connected with the main sleeve 60 or the panel 601, the limiting piece 602 and the main sleeve 60 are located on the same side of the panel 601, and the limiting piece 602 can penetrate through the water inlet hole 101 and the water outlet hole 102 and limit the wall of the shell 10 between the panel 601 and the limiting piece 602.

Specifically, the sheath 20 may be caught on the housing 10 by the main sleeve 60 and the panel 601, but the sheath 20 is easily dropped from the housing 10 by external force; by arranging the limiting piece 602, the limiting piece 602 is located at the outer side of the main sleeve 60, the limiting piece 602 is connected with the main sleeve 60, or the limiting piece 602 is connected with the panel 601, the limiting piece 602 and the main sleeve 60 are located at the same side of the panel 601, the limiting piece 602 can penetrate through the water inlet hole 101 and the water outlet hole 102 to play a limiting role, and the shell wall of the shell 10 is limited between the panel 601 and the limiting piece 602.

Such that after the sheath 20 is mounted on the housing, the restraint 602 and the panel 601 cooperate with each other; or, under the mutual cooperation of the limiting piece 602, the panel 601 and the main sleeve 60, when external force acts on the panel 601, the size of the limiting piece 602 is larger than that of the water inlet 101 and the water outlet 102, so that the sheath 20 can be effectively prevented from being separated from the shell 10, and the stability is improved.

Specifically, for example, the mounting process of the sheath 20 on the housing 10 is as follows: according to the distance between the water inlet 101 and the water outlet 102 on the casing 10, the distance between the main sleeve 60 of the first connecting sleeve 30 and the main sleeve 60 of the second connecting sleeve 40 is properly extended, the main sleeve 60 of the first connecting sleeve 30 is clamped on the water inlet 101 on the casing 10, then the main sleeve 60 of the second connecting sleeve 40 is clamped on the water outlet 102, the limiting piece 602 passes through the water inlet 101 and the water outlet 102, and the wall of the casing 10 is limited between the panel 601 and the limiting piece 602 due to the large size of the limiting piece 602 and the panel 601, so that the installation of the sheath 20 on the casing 10 is completed.

In some alternative embodiments, as shown in connection with fig. 4, the limiter 602 comprises a ferrule 6021, the ferrule 6021 being annularly arranged outside the barrel of the main sleeve 60 and connected to the panel 601, the ferrule 6021 having an outer diameter adapted to the apertures of the inlet 101 and outlet 102.

Specifically, through setting up cutting ferrule 6021, cutting ferrule 6021 annular sets up in the barrel outside of main sleeve 60 to be connected with panel 601, the external diameter of cutting ferrule 6021 and the aperture looks adaptation of inlet port 101 and apopore 102, after sheath 20 installs on shell 10, cutting ferrule 6021 can block on inlet port 101 and apopore 102, effectually blocks that main sleeve 60 deviate from shell 10, on the other hand, cutting ferrule 6021 is connected with panel 601 and can improve panel 601's structural strength.

Optionally, the length of the ferrule 6021 in the axial direction is less than or equal to the depth of the main sleeve 60.

It will be appreciated that the ferrule 6021 may also be coupled to the main sleeve 60 such that the main sleeve 60 may be protected to reduce wear.

In some alternative embodiments, the limiting member 602 further includes a first positioning protrusion 6022, where the first positioning protrusion 6022 is protruding from a side of the ferrule 6021 facing away from the cylinder of the main sleeve 60, and a distance between the first positioning protrusion 6022 and the panel 601 is adapted to a thickness of the housing 10.

Specifically, by setting the first positioning protrusion 6022, the first positioning protrusion 6022 is protruding to one side of the ferrule 6021 facing away from the cylinder of the main sleeve 60, and the distance between the first positioning protrusion 6022 and the panel 601 is adapted to the thickness of the casing 10, so that the first positioning protrusion 6022 can penetrate through the water inlet 101 and the water outlet 102 of the casing 10, so that the shell wall of the casing 10 is limited between the first positioning protrusion 6022 and the panel 601, shaking of the sheath 20 in use is reduced, and stability of the whole structure of the sheath 20 is improved.

Optionally, a gap exists between ferrule 6021 and main sleeve 60. This facilitates the inward deformation of the first positioning projections 6022 to smoothly pass through the water inlet 101 and the water outlet 102 for installation.

In some alternative embodiments, the restriction member 602 includes a second positioning protrusion protruding outside the cylinder of the main sleeve 60, the distance between the second positioning protrusion and the panel 601 being adapted to the thickness of the housing 10, and the second positioning protrusion may be restricted between the panel 601 and the second positioning protrusion through the water inlet 101 and the water outlet 102.

Specifically, by providing the second positioning projection, the second positioning projection can restrict the main sleeve 60 between the panel 601 and the second positioning projection, improving the mounting reliability.

Optionally, the second positioning protrusion is annularly disposed on the outer sidewall of the main sleeve 60. Of course, the shape of the second positioning projection is not limited to a circular ring shape.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. An electric water heater, comprising:

the shell is provided with a water inlet and a water outlet;

the sheath, the sheath includes first adapter sleeve and second adapter sleeve, wherein, first adapter sleeve card is located the inlet opening, the second adapter sleeve card is located the apopore, but first adapter sleeve and second adapter sleeve telescopic connection.

2. The electric water heater of claim 1, wherein the jacket further comprises:

the connecting piece, the one end of connecting piece with first adapter sleeve is connected, the other end of connecting piece with the second adapter sleeve is connected, first adapter sleeve with the second adapter sleeve is through the connecting piece telescopic connection.

3. The electric water heater according to claim 2, wherein the connector has a corrugated plate-like structure and is adapted to the curvature of the outer wall of the housing.

4. The electric water heater as claimed in claim 2, wherein the connector is made of an elastic material.

5. The electric water heater as claimed in any one of claims 2 to 4, wherein the first and second connection sleeves each comprise:

the main sleeve is of a barrel-shaped structure with an opening at the upper end, and a mounting hole is formed in the bottom of the main sleeve.

6. The electric water heater of claim 5, wherein the first and second connection sleeves each further comprise:

the panel is arranged at the opening end of the main sleeve in a surrounding mode, the panel is connected with the connecting piece, and the size of the panel is larger than that of the water inlet hole and the size of the water outlet hole.

7. The electric water heater of claim 6, wherein the first and second connection sleeves each further comprise:

the limiting piece is positioned on the outer side of the main sleeve and connected with the main sleeve or the panel, the limiting piece and the main sleeve are both positioned on the same side of the panel, and the limiting piece can penetrate through the water inlet hole and the water outlet hole and limit the shell wall of the shell between the panel and the limiting piece.

8. The electric water heater of claim 7, wherein the restraint comprises:

the cutting ferrule, the cutting ferrule annular set up in the barrel outside of main sleeve and with the panel is connected, the external diameter of cutting ferrule with the inlet opening with the aperture looks adaptation of apopore.

9. The electric water heater of claim 8, wherein the restraint further comprises:

the first positioning protrusion is arranged on one side of the clamping sleeve, which is opposite to the cylinder body of the main sleeve, in a protruding mode, and the distance between the first positioning protrusion and the panel is matched with the thickness of the shell.

10. The electric water heater of claim 7, wherein the restraint comprises: the second positioning protrusion is arranged on the outer side of the cylinder body of the main sleeve in a protruding mode, and the distance between the second positioning protrusion and the panel is matched with the thickness of the shell.