CN217817478U - Water heater - Google Patents

Abstract

The utility model discloses a water heater, which comprises an outer shell, an inner container, a foam piece and a foam bag, wherein an installation inner cavity is formed in the outer shell; the inner container is formed in the mounting inner cavity, and a heating assembly is formed in the heating inner cavity of the inner container; a connecting piece is formed at one end of the inner container and used for connecting and fixing the heating assembly, and foam pieces are respectively formed at two ends of the inner container; the foaming bag is coated on the inner container and the outer sides of the two foaming pieces positioned at the two ends of the inner container, and foaming materials are filled in the foaming bag; the foaming bag is sealed with the foam spare of inner bag and both sides, and expanded material fills to annotate inside the foaming bag, can effectively avoid expanded material to leak the external world, and joint strength between protection shell body, end cover, closing cap and water inlet pipe, outlet pipe way etc avoids expanded material to destroy the relation of connection, is favorable to improving the holistic structural strength of heat exchanger.

Description

Water heater

Technical Field

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

Background

At present, water heaters are household appliances commonly used in daily life of people, and are classified into electric water heaters, heat pump water heaters, solar water heaters and the like. Electric water heaters are widely used because of their convenient use.

For a conventional water heater, the conventional water heater generally comprises a water tank, a water inlet pipe, a water outlet pipe and the like, wherein the water tank comprises a shell and an inner container, 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 property of the water tank. The water inlet pipe and the water outlet pipe are communicated to the inner container, cold water is conveyed to the inner container, and heated hot water is output.

The inner container of the existing electric water heater is in an ellipsoidal shape, the foaming material filler is utilized to keep the temperature between the inner container and the shell in a full-length mode, the heat preservation mode is characterized in that the heat preservation performance is guaranteed, the foaming layer needs to reach a certain thickness, a plurality of connecting positions are formed on the shell of the water heater, the stability of the water heater structure is reduced due to the outward pressure of the foaming layer, the connection between components is loose, the foaming material often has the problem of overflowing from the connecting gap of the shell body, and the product appearance and the maintenance process are influenced.

Disclosure of Invention

An object of the utility model is to provide a solidus structure and water heater for water heater to foaming material causes outside pressure to outer casing and end cover isotructure in solving the current water heater that exists among the prior art, makes outer casing and end cover isotructure take place to warp, and joint strength reduces, the relatively poor scheduling problem of overall stability.

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

a water heater, comprising:

an outer housing having an installation cavity formed therein;

the inner container is formed in the installation inner cavity, and a heating assembly is formed in the heating inner cavity of the inner container;

foam pieces respectively formed at both ends of the inner container;

the foaming bag is coated on the inner container and the outer sides of the two foaming pieces positioned at the two ends of the inner container, and foaming materials are filled in the foaming bag.

In some embodiments of the present application, a connecting member is formed at one end of the inner container for connecting and fixing the heating assembly, the foam member includes a first foam member and a second foam member, a mounting opening is formed on the second foam member, and the connecting member is located in the mounting opening in a mounting state.

In some embodiments of the present application, a plurality of supporting portions are formed at one end of the first foam member connected to the inner container, and a following surface adapted to an end portion of the inner container is formed on the supporting portions.

In some embodiments of the present application, a first cover is connected to an outer side of the first foam member, an end cap is connected to an outer side of the second foam member, and deformation chambers are formed between the first foam member and the first cover and between the second foam member and the end cap.

In some embodiments of the present application, the outer edges of the first foam piece and the second foam piece are formed with connecting outer edges extending in a direction away from the liner, and the connecting outer edges are respectively used for being in contact connection with the first cover and the end cap.

In some embodiments of this application, be formed with the through-hole on the shell body, be formed with the threading passageway on the end cover, can dismantle on the threading passageway and be connected with threading piece, threading piece includes spacing end and threading sleeve pipe, be formed with in the threading piece and run through spacing end and threading sheathed tube threading chamber, under the installation state, threading sleeve pipe on the threading piece follows the through-hole extends to in the threading passageway.

In some embodiments of the present application, a wire pressing member is formed in the end cap, and includes a wire fixing portion and a wire pressing portion, the wire pressing portion is detachably connected to the wire fixing portion, the wire fixing portion is mounted on the end cap and located at an output end of the threading channel, a first wire fixing groove is formed in the wire fixing portion, a second wire fixing groove is formed in a surface of the wire pressing portion, which is in contact with the wire fixing portion, and a wire pressing hole is formed between the wire fixing portion and the wire pressing portion in a mounted state.

In some embodiments of the present application, the wire fixing portion and the wire pressing portion are connected by a connecting portion, so that the wire pressing portion is prevented from being lost in a disassembled state.

In some embodiments of the present application, a plurality of first fixing holes are formed in the wire fixing portion, a second fixing hole matched with the first fixing holes is formed in the wire pressing portion, and in an installation state, a fastener passes through the first fixing holes and the second fixing holes to fix the wire pressing portion to the wire fixing portion.

In some embodiments of the present application, the end cap has a downwardly extending mounting portion formed thereon, the threading channel being formed on the mounting portion; be formed with the support recess on the second foam spare, under the installation state, the installation department is located support in the recess.

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

the application relates to a water heater, the outside cladding of the foam spare in its inner bag and be located the inner bag both sides has the foaming bag, the material of foaming bag is PE, the foaming bag is sealed with the foam spare of inner bag and both sides, foaming material fills and annotates inside the foaming bag, can effectively avoid foaming material to leak the external world, the protection shell body, the end cover, closing cap and water intake pipe, the joint strength between outlet conduit etc, avoid foaming material to destroy the relation of connection, be favorable to improving the holistic structural strength of heat exchanger.

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 of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, 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 that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a foaming bag;

fig. 2 is a schematic view of the external structure of the water heater proposed by the present invention;

FIG. 3 is a schematic illustration of a disassembled structure of the end cap, closure and foam piece;

FIG. 4 is a schematic view of a water heater in a disassembled configuration;

FIG. 5 is a schematic view of the internal structure of the water heater;

FIG. 6 is one of the schematic structural views of the first foam piece;

FIG. 7 is a second schematic view of the structure of the first foam piece;

FIG. 8 is a schematic view of a second foam piece construction;

fig. 9 is a schematic view of the threading member configuration;

FIG. 10 is one of the schematic end cap constructions;

FIG. 11 is a second schematic view of the end cap configuration;

FIG. 12 is a schematic view of the mounting portion position;

figure 13 is a schematic view of the threading channel position;

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

100. an outer housing;

110. a through hole;

200. an inner container;

210. a connecting member;

300. a foam member; 301. a deformable cavity; 302. connecting the outer edges;

310. a first foam piece; 311. a support portion; 312. the inner container is shaped following;

320. a second foam piece; 321. an installation port; 322. a support groove;

400. an end cap;

410. a circuit board;

420. a threading channel; 421. an installation part;

430. a wire pressing member;

431. a wire fixing part; 4311. a first wire fixing groove; 4312. a first fixing hole;

432. a line pressing part; 4321. a second wire fixing groove; 4322. a second fixing hole;

433. a connecting portion;

440. a plug-in part; 441. inserting longitudinal beams; 442. inserting a bottom beam;

500. sealing the cover;

510. a first cover;

520. a second cover;

600. a threading member;

610. a limiting end;

620. threading a sleeve;

630. a threading cavity;

700. a foaming bag.

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 disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. 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 invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

The electric water heater adopts electric energy as a main energy material, and high-temperature heat generated after electrification directly heats water stored in the electric water heater so as to achieve the purpose of preparing hot water.

The electric water heater generally includes a water tank, an electric heating component, an electric control board and other components, wherein a water storage cavity is formed in the water tank to store water to be heated, the electric heating component is inserted into the water storage cavity formed in the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off to operate, so that the water in the water tank is heated to a set temperature.

For a water tank of an electric water heater, the water tank generally includes an outer case 100 and an inner container 200, and an insulation layer is formed between the outer case 100 and the inner container 200. Wherein, the shell is generally made of plastic materials to meet the design requirements of beautiful and diversified shapes; the inner container 200 may be a metal container or a plastic container as required.

In addition, the insulation layer formed between the outer shell and the inner container 200 is made of the following common insulation materials: asbestos, sponge, foamed plastic, polyurethane foam, etc., in the conventional technology, in order to obtain a good heat preservation effect, a heat preservation layer is usually formed in a foaming manner.

In the inner container 200 using the metal container, the inside of the inner container 200 is easily corroded due to the influence of water quality, and therefore, a magnesium rod is further disposed on the water tank and inserted into a water storage cavity inside the water tank.

Magnesium is the lowest potential metal in the electrochemical series and is physiologically nontoxic. Therefore, it is very desirable to form the magnesium rod protection liner 200. The size of the magnesium rod is directly related to the time for protecting the inner container 200 and the size of the protection effect, and the larger the magnesium rod is, the better the protection effect is and the longer the protection time is.

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 to a water storage cavity formed in the water tank, and hot water in the water storage cavity is output from the water outlet pipe.

For the electric heating part, an electric heating mode such as an electric heating wire, magnetic energy or silicon tube heating can be adopted to heat the water stored in the water storage cavity.

The electric 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 control board controls the electric heating part to be electrified and heated, and when the water temperature of water in the water tank reaches a set value, the electric control board controls the electric heating part to be powered off.

The cold water provided by the water supply pipeline flows into the heat exchange pipe, is heated into hot water by the electric heating source generated by the burner, and then flows out from the shower head or the water faucet through the hot water valve for users to use.

As shown in fig. 2 to 5, the present application provides a water heater, on which a wire fixing structure for the water heater is provided, and the water heater specifically includes an outer shell 100, an inner container 200 disposed in an installation inner cavity of the outer shell 100, end caps 400 located at two sides of the inner container 200 and connected to the outer shell 100, and a cover 500 located outside the end caps 400 for sealing the installation inner cavity.

A heating inner cavity is formed in the inner container 200, a heating assembly is formed in the heating inner cavity of the inner container 200, a water inlet pipeline and a water outlet pipeline are connected to the outside of the heating inner cavity, the water inlet pipeline is used for conveying cold water into the heating inner cavity, and the water outlet pipeline is used for conveying hot water heated by the inner heating assembly to a water using port.

The foam piece 300 is arranged between the end cover 400 and the inner container 200, and the foam piece 300 has a heat preservation effect and also has a buffering effect on the connection between the inner container 200 and the end cover 400.

The foam piece 300 is provided with a connecting outer edge 302 at one side close to the end cover 400, and in the mounting state, the foam piece 300 is in contact connection with the end cover 400 through the connecting outer edge 302.

Specifically, a connecting member 210 is formed at one end of the inner container 200 for connecting and fixing the heating assembly, the foam member 300 includes a first foam member 310 and a second foam member 320, a mounting opening 321 is formed on the second foam member 320, and the connecting member 210 is located in the mounting opening 321 in a mounting state.

The cover 500 includes a first cover 510 and a second cover 520, the first cover 510 being located outside the first foam 310, the end cap 400 being located outside the second foam 320; the second cover 520 is located outside the end cap 400.

As shown in fig. 1, the outer side of the inner container 200 and the outer side of the first foam member 310 and the second foam member 320 located at two sides of the inner container 200 are wrapped with a foam bag 700, the foam bag 700 is made of PE, the foam bag 700 seals the inner container 200 and the foam members 300 located at two sides, the foam material is filled in the foam bag 700, the foam material can be effectively prevented from leaking to the outside, the protective outer shell 100, the end cover 400, the sealing cover 500 and the water inlet pipeline, the water outlet pipeline and the like are connected with each other with high strength, the connection relation of the foam material is prevented from being damaged, and the overall structural strength of the heat exchanger is improved.

As shown in fig. 7 and 8, in other embodiments of the present disclosure, the foam member 300 (including the first foam member 310 and the second foam member 320) is located at the inner side of the connecting outer rim 302 and is formed with a deformation cavity 301 extending toward the liner 200, and the deformation cavity 301 is located between the foam member 300 and the end cap 400, so that a connecting gap is formed between the foam member 300 and the end cap 400.

The side of the foam piece 300 close to the inner container 200 is formed with a circular arc-shaped end surface, and when the thermal insulation material acts on the foam piece 300 under certain filling pressure, the circular arc-shaped end surface of the foam piece 300 can disperse the filling pressure on the foam piece 300, which is beneficial to reducing the deformation of the foam piece 300.

In addition, the deformation of the foam member 300 is mainly concentrated at the middle position, and the deformation cavity 301 is beneficial to avoiding the deformation of the foam member 300 from directly acting on the end cover 400, protecting the structural form of the end cover 400 and further improving the stability of the connection between the end cover 400 and the outer shell 100.

In general, in order to improve the heat insulation performance of the inner container 200, a heat insulation material is filled between the inner container 200 and the outer case 100, and a heat insulation layer is formed between the inner container 200 and the outer case 100 to insulate hot water in the inner container 200.

In the process of filling the heat insulating material between the inner container 200 and the outer shell, the heat insulating material has certain fluidity, so that the problems of leakage from the outer shell of the water heater, pressure deformation of the connecting part 433 in the water heater and the like exist.

As shown in fig. 6, a first foam member 310 is connected to the other end of the liner 200, a plurality of supporting portions 311 are formed at one end of the first foam member 310 connected to the liner 200, a liner following surface 312 adapted to the end of the liner 200 is formed on the supporting portions 311, the liner following surface 312 is an arc-shaped groove structure extending inwards, the radian of the liner following surface 312 is adapted to the end of the liner 200 connected to the liner following surface, and in an installation state, the following surface on each supporting portion 311 is in contact connection with the outer wall of the liner 200 for supporting and connecting the liner 200.

The heating assembly is externally connected with a plurality of wire harnesses to provide energy for the heating assembly.

In some embodiments of the present application, as shown in fig. 9-13, since the heating assembly needs to be externally connected with a wiring harness, the through hole 110 is formed at a corresponding position of the outer casing 100, and the threading channel 420 is formed on the end cap 400 for the wiring harness to pass through.

Threading piece 600 is detachably connected to threading channel 420, threading piece 600 includes limiting end 610 and threading sleeve 620, threading sleeve 620 is the cylindrical structure, and limiting end 610 is the limiting structure who forms in threading sleeve 620 one end for the connected position of restriction threading sleeve 620.

Referring to fig. 9, a threading cavity 630 is formed in the threading member 600 through the stop tip 610 and the threading sleeve 620, and in the installed state, the threading sleeve 620 on the threading member 600 extends from the through hole 110 into the threading channel 420, and the wiring harness passes through the threading cavity 630 and is connected to the heating assembly inside the water heater.

The size of the threading cavity 630 of the threading member 600 can be selected according to the actual requirements of users, so as to meet the passing requirements of wire harnesses with different powers and overall dimensions, realize high-power and low-power universality, and improve fineness.

In order to stabilize the connection of the wire harness within the water heater, a crimping member 430 is formed within the end cap 400, and the crimping member 430 stably crimps the wire harness to the end cap 400.

The number and specific positions of the wire pressing members 430 are determined according to the actual requirements of the user and the number of the wire harnesses, and are not described herein.

The wire pressing member 430 includes a wire fixing portion 431 and a wire pressing portion 432, the wire fixing portion 431 is mounted on the end cover 400, and the wire pressing portion 432 is detachably connected to the wire fixing portion 431.

The wire pressing piece 430 is located at the output end of the threading channel 420, a plurality of first wire fixing grooves 4311 are formed on the wire fixing part 431, a second wire fixing groove 4321 is formed on one surface, contacting with the wire fixing part 431, of the wire pressing part 432, in an installation state, a wire pressing hole is formed between the wire fixing part 431 and the wire pressing part 432, and a wire harness penetrates through the wire pressing hole.

In order to prevent the wire pressing part 432 from being lost in a disassembly state, the wire fixing part 431 and the wire pressing part 432 are connected through the connecting part 433, the connecting part 433 is of a plastic connecting strip structure, in the disassembly state, the wire pressing part 432 is connected onto the wire fixing part 431 through the connecting part 433, and in an assembly state, the wire pressing part 432 pulls the connecting part 433 to turn over for a certain angle to be connected with the wire fixing part 431.

Specifically, the wire fixing portion 431 is formed with a plurality of first fixing holes 4312, the wire pressing portion 432 is formed with a second fixing hole 4322 fitted to the first fixing hole 4312, and in the mounted state, the fastener passes through the first fixing holes 4312 and the second fixing hole 4322 to fix the wire pressing portion 432 to the wire fixing portion 431.

Referring again to fig. 10 and 11, in other embodiments of the present application, the end cap 400 further has a plug portion 440 formed thereon for connecting the circuit board 410, and the plug portion 440 includes plug longitudinal beams 441 spaced apart from each other and plug bottom beams 442 connected between the two plug longitudinal beams 441.

The opposite sides of the insertion longitudinal beams 441 are respectively provided with insertion vertical grooves with opposite openings, the insertion bottom beams 442 are respectively provided with insertion transverse grooves with upward openings, and the circuit board 410 is downwards installed from the upper part of the insertion part 440 and the two sides of the circuit board respectively corresponding to the insertion vertical grooves until the bottom surface of the circuit board 410 extends into the insertion transverse grooves, so that the circuit board 410 is connected to the end cover 400.

Specifically, referring to fig. 8 and 12, an installation portion 421 extending downward is formed on the end cap 400, and a threading channel 420 is formed on the installation portion 421; the second foam member 320 is formed with a supporting groove 322, in the mounted state, the mounting portion 421 is located in the supporting groove 322, and the supporting groove 322 provides support for the mounting portion 421 and facilitates the connection and positioning between the end cap 400 and the second foam member 320.

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 is only the specific embodiment of the present invention, but the protection 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 in the technical scope of the present invention should be covered by the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A water heater, comprising:

an outer housing having a mounting cavity formed therein;

an inner container formed in the mounting cavity, a heating assembly being formed in a heating cavity of the inner container;

foam pieces formed at both ends of the inner container, respectively;

and the foaming bag is coated on the inner container and the outer sides of the two foam pieces positioned at the two ends of the inner container, and is filled with a foaming material.

2. The water heater of claim 1,

the one end of inner bag is formed with the connecting piece for it is fixed to connect the heating element, the foam spare includes first foam spare and second foam spare, be formed with the installing port on the second foam spare, under the installation status, the connecting piece is located in the installing port.

3. The water heater of claim 2,

and a plurality of supporting parts are formed at one end of the first foam part connected with the inner container, and a following surface matched with the end part of the inner container is formed on each supporting part.

4. The water heater of claim 2,

the outer side of the first foam piece is connected with a first sealing cover, the outer side of the second foam piece is connected with an end cover, and deformation cavities are formed between the first foam piece and the first sealing cover and between the second foam piece and the end cover.

5. The water heater of claim 4,

the outer edges of the first foam piece and the second foam piece are provided with connecting outer edges extending in the direction away from the inner container, and the connecting outer edges are respectively used for being in contact connection with the first sealing cover and the end cover.

6. The water heater of claim 4,

the shell body is provided with a through hole, the end cover is provided with a threading channel, the threading channel is detachably connected with a threading piece, the threading piece comprises a limiting end and a threading sleeve, a threading cavity penetrating through the limiting end and the threading sleeve is formed in the threading piece, and the threading sleeve on the threading piece extends into the threading channel from the through hole in an installation state.

7. The water heater of claim 6,

the end cover is internally provided with a wire pressing piece which comprises a wire fixing part and a wire pressing part, the wire pressing part is detachably connected to the wire fixing part, the wire fixing part is arranged on the end cover and is positioned at the output end of the threading channel, a first wire fixing groove is formed in the wire fixing part, a second wire fixing groove is formed in the surface, in contact with the wire fixing part, of the wire pressing part, and a wire pressing hole is formed between the wire fixing part and the wire pressing part in the mounting state.

8. The water heater of claim 7,

the line fixing part is connected with the line pressing part through a connecting part, so that the line pressing part is prevented from being lost in a disassembly state.

9. The water heater of claim 7,

the wire fixing part is provided with a plurality of first fixing holes, the wire pressing part is provided with second fixing holes matched with the first fixing holes, and in an installation state, a fastening piece penetrates through the first fixing holes and the second fixing holes to fix the wire pressing part on the wire fixing part.

10. The water heater of claim 6,

the end cover is provided with a mounting part extending downwards, and the threading channel is formed on the mounting part; the second foam piece is provided with a supporting groove, and the mounting part is positioned in the supporting groove in a mounting state.

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