CN218565761U - Electric water heater - Google Patents

Abstract

The utility model discloses an electric water heater, which comprises a shell, an inner container supporting piece and a supporting disk seat, wherein the shell is of an integrally formed cylindrical structure, and two ends of the shell are respectively connected with a first end cover and a second end cover; the liner is arranged in the shell and comprises a top arc surface, a vertical peripheral side surface and a bottom arc surface; the liner supporting piece is positioned between the second end cover and the liner; support the dish seat and be located between inner bag and the first end cover, be formed with the electrical apparatus room on the support dish seat, the internal surface of shell, the surface of inner bag, inner bag support piece, and form the foaming chamber between the second end cover, shell integrated into one piece, omit the connection gap that the assembly produced behind the shell injection moulding, the risk that the foaming material spilled over from connection gap department has been reduced, the heat preservation effect obtains obviously promoting, and in foaming material inflation process, it is unobvious to be used in the deformation on the shell of cylinder, the finished product quality is better, in addition, operating personnel is less at the intensity of labour in the installation, the installation effectiveness is high.

Description

Electric water heater

Technical Field

The utility model belongs to the technical field of domestic appliance, specifically speaking relates to an electric water heater.

Background

The small kitchen appliance as a small-capacity electric water heater gradually enters kitchens of thousands of households, is popular among many households due to small volume, quick heating and convenient installation and use, is usually installed at a hand washing table of a kitchen or a toilet for washing dishes, vegetables, hands and the like, can meet the supply of small-quantity hot water, and saves electricity compared with the water heater.

Traditional little kitchen is precious shell is plastic molding structure, and the fastener such as bolt will be controlled or upper and lower half shell butt joint becomes tubular structure after the shaping, is as application number: 202120643479.6, named as the patent document of electric water heater, in addition to that, the connection between the housing and the upper cover plate and the lower cover plate is also fastened by fasteners, so in the actual installation process, the installation strength of the operator is high, and a plurality of fastening structures need to be installed, which easily causes the problem of poor stability of the whole structure of the electric water heater due to the insecure installation of the fasteners.

Disclosure of Invention

An object of the utility model is to provide an electric water heater to the installation of the current little kitchen treasured isowater heater shell that exists among the solution prior art or the installation between shell and the end cover rely on the fastener fixed, and the installation is loaded down with trivial details, and intensity of labour is big, the relatively poor scheduling problem of overall structure intensity and stability.

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

the utility model provides an electric water heater, it includes:

the shell is of an integrally formed cylindrical structure, and a first end cover and a second end cover are connected to two ends of the shell respectively;

the inner container is arranged in the shell and comprises a top arc surface, a vertical peripheral side surface and a bottom arc surface;

the liner supporting piece is positioned between the second end cover and the liner and is used for supporting the liner;

the supporting disk seat is positioned between the inner container and the first end cover, and an electric appliance chamber is formed on the supporting disk seat and used for supporting an electric appliance;

and a foaming cavity is formed among the inner surface of the shell, the outer surface of the inner container, the supporting disc seat and the second end cover and is used for injecting foaming materials to form a foaming layer.

In some embodiments of the present application, the second end cap is formed with a closed arc extending to one side.

In some embodiments of this application, the shell is the panel beating shaping, the surface of shell be formed with the parallel welding seam of center pin of shell, be formed with the installation sign on the supporting disk seat, the installation sign corresponds the welding seam position.

In some embodiments of the present application, the first port of the outer shell is formed with a first curling edge bending inward, the periphery of the supporting disk seat is formed with a horizontal connecting surface, an inner lapping edge and an outer lapping edge extending upward are respectively formed on the connecting surface along the radial direction of the connecting surface, under the installation state, the outer edge of the first end cover is located on the outer side of the inner lapping edge, and the first curling edge is clamped on the inner side of the outer lapping edge.

In some embodiments of this application, the lower opening of shell is formed with the second turn-up of inside buckling, be formed with the connection turn-ups of upwards extending on the second end cover, the week side of second end cover is formed with the protruding edge of connection of downwardly extending, second turn-up joint is in connect protruding along last, connect the turn-ups location to in the shell.

In some embodiments of the application, an upper heat-insulating piece is further formed between the supporting disc seat and the inner container, and a conformal surface matched with the top arc surface is formed on the lower surface of the upper heat-insulating piece.

In some embodiments of the present application, a downwardly extending inner support edge is formed on the outer periphery of the appliance chamber, a downwardly extending support groove is further formed on the upper surface of the upper heat insulation member, the inner support edge is connected to the bottom of the support groove, and a buffer area is formed between the support tray seat and the upper heat insulation member.

In some embodiments of this application, inner bag support piece is heat preservation down, heat preservation down the top be formed with the shape following face of the bottom arc surface looks adaptation of inner bag, the inner bag supports heat preservation down top.

In some embodiments of the present application, the liner support includes a plurality of support portions having bottoms fixedly connected to the inner surface of the second end cap, and a conformal surface adapted to the bottom arc surface is formed on each support portion; and each supporting part is also provided with a vertically upward supporting baffle arm, and the supporting baffle arms are in contact connection with the vertical peripheral side surface of the inner container.

In some embodiments of the present application, at least two positioning elements are further dispersedly formed between the inner container and the outer shell along the peripheral side of the inner container, and angles between adjacent positioning elements are equal.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

the electric water heater has the advantages that the shell is of the integrally formed cylindrical structure, connecting gaps generated by assembling after injection molding of the shell are omitted, the risk that foaming materials overflow from the connecting gaps is reduced, the heat preservation effect is obviously improved, deformation is not obvious when the foaming materials act on the cylindrical shell in the expansion process, and the quality of finished products is good;

in addition, the connection of fasteners on the shell and between the shell and the end cover is reduced, the integrity and the structural strength of the electric water heater are greatly improved, the labor intensity of operators in the installation process is low, and the installation cost is reduced.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of an electric water heater provided by the present invention;

FIG. 2 is a schematic diagram of an electric water heater;

FIG. 3 is one of the schematic cut-away views of the electric water heater;

FIG. 4 is a second schematic sectional view of the electric water heater;

FIG. 5 is a schematic view of the connection of the support tray to the housing and the first end cap;

FIG. 6 is a schematic view of the support tray and the upper heat-retaining member being disassembled;

FIG. 7 is a schematic view of the first end cap;

FIG. 8 is a second exploded view of the support tray and the upper thermal insulation member;

FIG. 9 is a second schematic view of the first end cap;

FIG. 10 is a schematic view of the positioning member structure;

FIG. 11 is a front view of the electric water heater;

FIG. 12 isbase:Sub>A sectional view A-A of FIG. 11;

fig. 13 is an enlarged schematic view at B in fig. 12;

FIG. 14 is a schematic view of the position of the lower insulating member;

FIG. 15 is a schematic view of the attachment of the support portion to the second end cap;

in the figure, the position of the upper end of the main shaft,

100. a housing;

101. a first curl;

102. a second hemming;

110. a first end cap; 111. buckling; 112. a connecting portion;

120. a second end cap;

121. connecting the flanging;

122. connecting the convex edges;

200. an inner container;

300. an upper heat preservation member;

304. a buffer area;

310. a support groove;

400. a support tray base;

410. a connecting surface;

420. an outer lap joint edge;

430. an inner lap joint edge;

440. a docking portion;

441. a limiting block;

450. mounting grooves;

451. a clamping part;

460. supporting the inner edge;

500. a support portion;

510. a support arm;

520. filling the cavity;

600. a positioning member;

610. positioning the arc surface;

620. reinforcing rib plates;

700. a lower heat-insulating member;

800. a drain line.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in itself dictate a relationship between the various embodiments and/or arrangements discussed.

As shown in fig. 1 to 4, the present application provides an electric water heater, which includes a housing 100 and an inner container 200 located inside the housing 100, wherein a first port and a second port are respectively formed at two ends of the housing 100, and a first end cap 110 and a second end cap 120 are respectively detachably disposed on the first port and the second port.

For a small kitchen appliance, the housing 100 is vertically disposed, and in this installation state, the second end cap 120 is located below the housing to provide support for the whole electric water heater.

The inner container 200 is vertically supported on the inner surface of the second end cap 120 through a container support member, a heating inner cavity is formed in the inner container 200, and water in the heating inner cavity is heated through a heating device for a user to use.

The liner 200 is a conventional approximately elliptical liner 200, the outer surface of the liner 200 is composed of a top arc surface, a bottom arc surface and vertical peripheral sides, the top arc surface is arranged at the top of the vertical peripheral sides and is tangent to the top arc surface, and the bottom arc surface is arranged at the bottom of the vertical peripheral sides and is tangent to the bottom arc surface.

A supporting plate seat 400 is disposed between the inner container 200 and the first end cap 110, and an electric appliance chamber is formed therein for installing components such as a heating pipe, a water inlet pipe, a water outlet pipe, and a temperature controller for installing an electric water heater.

The manufacturing of the housing 100 includes bending and welding, and after the metal plate is bent into a cylindrical structure, the connecting positions are welded to form the cylindrical structure.

When the second end cap 120 is installed, the second end cap is first connected to the second port of the housing 100; the second end cap 120 is formed with a curved surface structure extending downward, which is beneficial to reducing the deformation influence of foaming expansion on the second end cap 120 in the foaming process.

After the second end cap 120 is connected, the outer shell 100 is placed vertically, the second end cap 120 is located below, the first port located above the outer shell 100 is an open structure, and the liner 200 is placed into the outer shell 100 downward from the first port.

The inner container 200 is supported on the second end cap 120 by the inner container support; the heating pipe, the magnesium rod and other structures are connected above the inner container 200 in advance.

After the liner 200 is connected, the supporting disk seat 400 is sleeved on the top of the liner 200, the supporting disk seat 400 is connected with the first port of the casing 100, and in order to ensure the accuracy of the mounting position of the supporting disk seat 400, during mounting, the mounting mark on the supporting disk seat 400 corresponds to the welding seam position of the casing 100.

After the support tray 400 is installed, the electric devices are installed in the electric device chamber in the support tray 400, and then the electric devices are connected to the heating pipe, etc.

Finally, the first end cap 110 is placed on the support tray 400, thereby achieving the upper side of the housing 100.

A foaming chamber is formed between the inner surface of the outer shell 100, the outer surface of the inner container 200, the inner container support member, and the second end cap 120, and a foaming material is injected into the foaming chamber to foam to form a foaming layer.

Referring to fig. 5 and 13, in some embodiments of the present application, the housing 100 is detachably connected to the first end cap 110 and the second end cap 120 by a snap-fit connection, and a first curled edge 101 and a second curled edge 102 bent inward are respectively formed at both ends of the housing 100.

The shell 100 is formed by a metal plate, so that a connecting gap generated by assembling the shell 100 after injection molding can be omitted, the risk of overflow of the foaming material from the connecting gap is reduced, the deformation of the foaming material acting on the cylindrical shell 100 is not obvious in the expansion process of the foaming material, and the finished product has good quality

Referring to fig. 5-7, in some embodiments of the present application, a horizontally disposed connecting surface 410 is formed on the supporting tray 400, an inner overlapping edge 430 and an outer overlapping edge 420 extending upward are formed on the connecting surface 410, and a water storage tank is formed between the inner overlapping edge 430 and the outer overlapping edge 420, so that external water can be prevented from directly entering the electric appliance chamber, and the generation of accumulated water can be reduced.

When the device is installed, the first crimping edge 101 is clamped on the inner side of the outer lapping edge 420, so that the shell 100 and the support disk seat 400 are fixedly connected.

The outer edge of the first end cap 110 is located outside the inner overlapping edge 430, so that the support tray 400 is fixedly connected with the first end cap 110 and the outer shell 100.

In order to further achieve stable connection between the support tray 400 and the second end cap 120, in some embodiments of the present application, the sidewall of the appliance compartment is formed with a plurality of abutting portions 440 distributed along the circumference thereof, the first end cap 110 is correspondingly formed with a plurality of snaps 111, and the first end cap 110 is detachably connected to the support tray 400 through the snaps 111.

The abutting portion 440 is a clamping groove structure formed on the sidewall of the electric appliance chamber, a limiting block 441 extending towards the center direction of the electric appliance chamber is formed above the clamping groove, and a positioning end extending towards the outer side is formed at the tail end of the buckle 111.

In order to facilitate installation, a downward inclined plane is formed above the limiting block 441, and an inward inclined guide plane is also formed on one side of the positioning end head, which is in contact with the limiting block 441.

In the process that the first end cover 110 is installed towards the supporting disk seat 400, under the interaction of the inclined surface on the limiting block 441 and the guide surface on the positioning end head, the buckle 111 deflects inwards until the positioning end head is clamped below the limiting block 441, and at the moment, under the action of the buckle 111, the first end cover 110 is fixedly connected with the supporting disk seat 400.

As shown in fig. 8 and 9, in other embodiments of the present application, a plurality of mounting grooves 450 extending downward are dispersedly formed on the connecting surface 410 of the supporting disk seat 400, each mounting groove 450 is circumferentially distributed, and the side walls in the same rotation direction in each mounting groove 450 are respectively formed with a clamping portion 451 protruding out of the side wall of the mounting groove 450.

The inner surface opposite to the supporting disk seat 400 is formed with a connecting portion 112, the connecting portion 112 is located on the inner surface of the supporting disk seat 400 and extends downwards, and the arrangement of the connecting portion 112 corresponds to the clamping portion 451 one by one.

The connecting portion 112 has an L-shape with connecting legs formed thereon.

A clamping gap is formed between the clamping portion 451 and the bottom of the mounting groove 450, when the mounting is performed, each clamping portion 451 on the first end cover 110 corresponds to each mounting groove 450, and then, after the first end cover 110 is rotated by a certain angle along the direction of the clamping portion 451, the connecting support legs on each connecting portion 112 are rotationally butted below the clamping portion 451, so that the first end cover 110 is connected with the supporting disk seat 400.

Referring to fig. 11 to 13 again, the second end cap 120 is formed with a connecting flange 121 extending toward the inner container 200, the connecting flange 121 gradually expands outward along the extending direction thereof, and a plurality of slits are formed in the connecting flange 121 in a dispersed manner.

In the installation process, first, the second end cap 120 is installed downward from the upper opening position of the housing 100, and the connecting flange 121 is retracted inward under the action of the notch until the second end cap 120 extends out of the bottom of the housing 100.

The gap can provide a space for the connection flange 121 to be retracted inwards in the installation process of the second end cover 120, and besides, the connection flange 121 can be expanded outwards to ensure that the inner wall of the shell 100 is tightly connected with the connection flange 121, and the connection gap is reduced.

The second end cap 120 is formed with a coupling flange 122 at the bottom periphery thereof, and after the second end cap 120 is downwardly mounted in place, the second bead 102 at the bottom of the outer shell 100 is caught on the coupling flange 122, so that the second end cap 120 is mounted to the outer shell 100.

In some embodiments of the present application, an upper thermal insulation member 300 is further formed between the support tray 400 and the inner container 200, a following surface adapted to the top arc surface is formed at the bottom of the upper thermal insulation member 300, and in an installation state, the bottom of the upper thermal insulation member 300 is in close contact with the top arc surface through the following surface.

The upper heat-insulating member 300 is made of a foam material and forms a gap with the inner wall of the housing 100, and the upper heat-insulating member 300 is formed with a through mounting opening which is communicated with the electric appliance chamber.

Referring to fig. 3 and 4 again, a support groove 310 extending downward is formed in the upper thermal insulation member 300, a support inner edge 460 extending downward is formed on the support tray 400, in an installation state, the bottom of the support inner edge 460 is in contact connection with the bottom of the support groove 310, and an annular buffer area 304 is formed between the support tray 400 and the upper thermal insulation member 300.

In the embodiment where the upper thermal insulation member 300 is disposed below the support tray 400, the foaming chamber is defined by the upper thermal insulation member 300, the inner surface of the housing 100, the second end cap 120, and the outer surface of the inner container 200.

In the foaming material filling process, in order to ensure sufficient filling and heat preservation characteristics of the inner container 200, the foaming amount filled in the foaming cavity needs to be sufficient, the redundant foaming material extends to the upper part of the upper heat preservation part 300 along the gap between the upper heat preservation part 300 and the inner wall of the shell 100, and the arrangement of the buffer area 304 can buffer the foaming material, reduce the pressure of expansion of the foaming material on each component in the electric water heater, and reduce the generation of deformation.

In addition, the buffer area 304 is formed to facilitate the installation of the supporting tray 400, and after the inner container 200 and the upper heat preservation member 300 are installed, enough installation space is reserved in the connection process between the supporting tray 400 and the outer shell 100 and the upper heat preservation member 300.

In the installation process, because the inner bag 200, go up in heat preservation 300 installs in advance the shell 100 in, later support disk seat 400 installs in the shell 100, because support disk seat 400 and the first crimping 101 direct joint of shell 100, it is more convenient to form the foaming clearance between support disk seat 400 and last heat preservation 300 in the in-process that is favorable to supporting disk seat 400 and installs in shell 100, avoids the no installation space that close contact caused, problem of installation difficulty.

Referring to fig. 1, 4 and 10 again, in some embodiments of the present application, in order to further fix the position of the inner container 200 in the casing 100, at least two positioning members 600 are further formed between the inner container 200 and the casing 100 in a dispersed manner, and angles between adjacent positioning members 600 are equal to ensure that the peripheral side of the inner container 200 is stably fixed to prevent the inner container from deviating.

Each positioning member 600 is a shell structure with a U-shaped cross section, and a positioning arc 610 is formed on the end surface of the positioning member contacting the inner container 200, and the shape of the positioning arc 610 is matched with the outer surface of the inner container 200.

The setting element 600 is through its location cambered surface 610 and the joint of itself between inner bag 200 and shell 100, and the upper end of setting element 600 is connected with the top arc surface contact of inner bag 200, and its lower extreme is connected with the vertical week side contact of inner bag 200, because the top size of setting element 600 is greater than the bottom size, consequently, the vertical week side of inner bag 200 just can realize the restriction to setting element 600 position, has avoided extra fixed.

A reinforcing rib plate 620 is further formed in the spacer 600 to improve the structural strength of the spacer 600.

The positioning member 600 is designed to be a shell structure, which is beneficial to increasing the contact area between the foaming material and the inner container 200, and the foaming material can be filled in the positioning member 600 at two sides of the reinforcing rib plate 620, so as to improve the heat insulation performance of the inner container 200.

After the positioning member 600 is installed in step S1 and the inner container 200 is completely installed, the positioning member 600 is dispersedly installed between the inner container 200 and the outer case 100 to further position the inner container 200 and prevent the inner container 200 from shifting left and right.

Referring to fig. 14, in some embodiments of the present application, the liner supporting member is a lower heat insulating member 700 structure, the lower heat insulating member 700 and the upper heat insulating member 300 are both foam structures, for better positioning, a liner 200 supporting groove is formed above the lower heat insulating member 700, and a conformal surface matched with a bottom arc surface of the liner 200 is formed at the bottom of the liner 200 supporting groove.

In the case that the liner support member is the lower heat insulating member 700, the liner support member needs to be separately installed, the installation step of the lower heat insulating member 700 is between S1 and S2, after the second end cap 120 is installed, the lower heat insulating member 700 is placed in the outer shell 100 from the first port of the outer shell 100, and after the installation of the lower heat insulating member 700 is completed, the liner 200 is placed on the lower heat insulating member 700.

In order to prevent the liner 200 from shaking on the surface of the lower heat-insulating member 700, the depth of the liner 200 supporting groove on the lower heat-insulating member 700 is higher than the position where the bottom arc surface is tangent to the vertical peripheral side surface, so as to increase the stability of the liner 200 supporting.

In this embodiment, the foaming chamber is mainly defined by the inner surface of the casing 100, the outer surface of the inner container 200, the support tray 400 (or the upper thermal insulation member 300), and the lower thermal insulation member 700.

Referring to fig. 11 and 15, in another embodiment, the liner supporting member is a plurality of supporting portions 500 connected to the inner surface of the second end cap 120, and each supporting portion 500 is formed with a conformal surface adapted to the bottom arc surface; each support portion 500 is further formed with a vertically upward support arm 510, and the support arm 510 is in contact connection with the vertical peripheral side.

Referring to the figures in particular, in order to improve the heat insulation performance of the inner container 200, a filling cavity 520 is formed at one side of each support part 500 away from the inner container 200, and the filling cavity is beneficial to the volume of the foaming cavity and increases the heat insulation thickness.

In order to be more adaptive to the inner container 200, a following surface adaptive to the top arc surface is formed at the bottom of the upper heat insulation member 300, and in an installation state, the bottom of the upper heat insulation member 300 is in close contact connection with the top arc surface through the following surface.

Different from the previous embodiment, the liner supporting member in the embodiment does not need an additional installation process, and is installed together with the second end cap 120, so that the installation steps are reduced, the installation and manufacturing cost is saved, the acting volume of the foaming material is increased, and the heat preservation effect is better.

Referring again to fig. 3, in other embodiments of the present application, a drain line 800 is further connected to the electric chamber, and an upper end of the drain line 800 communicates with a lowest position of the mounting port of the upper heat retaining member 300, and a lower end thereof penetrates through the second end cap 120 to drain condensed water in the electric chamber out of the housing.

Before the installation of drain pipe 800 in inner bag 200, after the installation of second end cover 120, in pegging graft the drain pipe 800 lower extreme to the drain hole of second end cover 120, then install inner bag 200 (when inner bag support piece is heat preservation 700 down, install heat preservation 700 down earlier, wear out in heat preservation 700 down with drain pipe 800), after the installation of inner bag 200 was accomplished, with the upper end crimping of drain pipe 800 on inner bag 200 top arc surface, then, it is fixed to go up heat preservation 300.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments of the present invention are only examples, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also intended to be covered by the scope of the present invention.

Claims (10)

1. An electric water heater, comprising:

the shell is of an integrally formed cylindrical structure, and a first end cover and a second end cover are connected to two ends of the shell respectively;

the inner container is arranged in the shell and comprises a top arc surface, a vertical peripheral side surface and a bottom arc surface;

the liner supporting piece is positioned between the second end cover and the liner and is used for supporting the liner;

the supporting disk seat is positioned between the inner container and the first end cover, and an electric appliance chamber is formed on the supporting disk seat and used for supporting an electric appliance;

and a foaming cavity is formed among the inner surface of the shell, the outer surface of the inner container, the supporting disc seat and the second end cover and is used for injecting foaming materials to form a foaming layer.

2. The electric water heater of claim 1,

and a closed cambered surface extending towards one side is formed on the second end cover.

3. The electric water heater of claim 1,

the shell is the panel beating shaping, the surface of shell be formed with the parallel welding seam of center pin of shell, be formed with the installation sign on the supporting disk seat, the installation sign corresponds the welding seam position.

4. The electric water heater of claim 1,

the first port of the shell is provided with a first curled edge which is bent inwards, the periphery of the supporting disk seat is provided with a horizontal connecting surface, an inner lap joint edge and an outer lap joint edge which extend upwards are respectively formed on the connecting surface along the radial direction of the connecting surface, the outer edge of the first end cover is positioned on the outer side of the inner lap joint edge in the installation state, and the first curled edge is clamped on the inner side of the outer lap joint edge.

5. The electric water heater of claim 1,

the lower opening of shell is formed with the second turn-up of inwards buckling, be formed with the connection turn-up of upwards extending on the second end cover, week side of second end cover is formed with the protruding edge of connection of downwardly extending, second turn-up joint is in connect protruding edge last, it arrives to connect the turn-up location in the shell.

6. The electric water heater of claim 1,

an upper heat-insulating piece is further formed between the supporting disc seat and the inner container, and a conformal surface matched with the top arc surface is formed on the lower surface of the upper heat-insulating piece.

7. The electric water heater of claim 6,

the electric appliance cabinet is characterized in that a support inner edge extending downwards is formed on the periphery of the electric appliance cabinet, a support groove extending downwards is further formed in the upper surface of the upper heat-insulating piece, the bottom of the support inner edge is connected to the bottom of the support groove in a supporting mode, and a buffer area is formed between the support disc seat and the upper heat-insulating piece.

8. The electric water heater of claim 1,

the liner supporting piece is a lower heat-insulating piece, a conformal surface matched with the bottom arc surface of the liner is formed above the lower heat-insulating piece, and the liner is supported above the lower heat-insulating piece.

9. The electric water heater of claim 1,

the liner supporting piece comprises a plurality of supporting parts, the bottoms of the supporting parts are fixedly connected to the inner surface of the second end cover, and shape following surfaces matched with the bottom arc surface are formed on the supporting parts; and each supporting part is also provided with a vertically upward supporting baffle arm, and the supporting baffle arms are in contact connection with the vertical peripheral side surface of the inner container.

10. The electric water heater of claim 1,

at least two positioning pieces are further formed between the inner container and the shell along the peripheral side of the inner container in a dispersed mode, and angles between the adjacent positioning pieces are equal.

Images