CN218033735U - Water heater - Google Patents

Abstract

The utility model discloses a water heater, which comprises an outer shell, an inner container, an end cover and a foam piece, 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; the end covers are respectively positioned at two ends of the outer shell; the foam piece is positioned between the inner container and the end cover, a connecting outer edge is formed on one side of the foam piece close to the end cover and is used for being in contact connection with the end cover, and a deformation cavity is formed between the foam piece and the end cover; when the foaming material is acted on the foam pieces on the two sides, the foam pieces generate a small amount of deformation, the deformation is mainly concentrated in the middle positions of the foam pieces, and the deformation cavity is formed between the foam pieces and the end covers, so that the deformation of the foam pieces cannot be directly acted on the end covers, the connection relation between the outer shell and the end covers cannot be influenced, the structural strength of the water heater is favorably ensured, and the stability of the water heater is improved.

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 foaming material filler is utilized to keep the temperature of the inner container and the outer shell of the existing electric water heater in a full-length mode, and in order to guarantee the heat preservation performance, the foaming layer needs to reach a certain thickness, so that pressure can be formed on the outer shell and end cover structures positioned at two ends of the outer shell in the filling process of the foaming layer, even the part in contact with the foaming layer can deform, the connection between the outer shell and the end covers can be damaged, and the firmness and the stability of the overall connection of the water heater are affected.

Disclosure of Invention

An object of the utility model is to provide a water heater to solve the foaming layer that exists among the prior art and filling the notes in-process, the outside effort of formation can cause the influence to the joint strength between end cover and the shell body, the holistic stability of water heater reduces the scheduling problem.

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;

end covers respectively positioned at two ends of the outer shell;

the foam piece is positioned between the inner container and the end cover, one side of the foam piece, which is close to the end cover, is provided with a connecting outer edge for contacting and connecting with the end cover, and a deformation cavity is formed between the foam piece and the end cover.

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, the inner container, the first foam member and the second foam member are wrapped with a foaming bag, and the foaming bag is filled with a foaming material.

In some embodiments of the present application, the material of the blister pocket is PE and the end cap is located outside the second foam piece.

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

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 fastener penetrates through the first fixing holes and the second fixing holes to fix the wire pressing part on the wire fixing part.

In some embodiments of the present application, the end cap has a downwardly extending mounting portion formed thereon, and the threading channel is 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.

In some embodiments of the present application, an insertion portion for connecting a circuit board is further formed on the end cover, a slot with an upward opening is formed on the insertion portion, and the circuit board is inserted into the slot.

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

the application relates to a water heater, be formed with the deformation chamber on its inner bag and the foam spare that is located the inner bag both ends, when expanded material is used in the foam spare of both sides, the foam spare produces a small amount of deformations, it mainly concentrates on the intermediate position of foam spare to warp, because be formed with the deformation chamber between foam spare and the end cover, therefore, the deformation of foam spare can not directly be used on the end cover, consequently, can not influence the relation of connection between shell body and the end cover, be favorable to guaranteeing the structural strength of water heater, improve the stability of water heater.

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 view of the external structure of a water heater according to the present invention;

FIG. 2 is a schematic illustration of a disassembled structure of the end cap, closure and foam piece;

FIG. 3 is a schematic view of the water heater in a disassembled configuration;

FIG. 4 is a schematic view of the internal structure of the water heater;

FIG. 5 is one of the schematic structural views of the first foam piece;

FIG. 6 is a second schematic view of the structure of the first foam piece;

FIG. 7 is a schematic view of a second foam piece construction;

FIG. 8 is a schematic view of a foamed bag 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 configuration;

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 along the surface;

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

432. a wire 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 obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable 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. 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 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 insulating layer formed between the outer shell and the inner container 200 is made of the following common insulating materials: asbestos, sponge, foam plastic, polyurethane foam and the like, and in order to obtain a good heat preservation effect in the conventional technology, a foaming mode is usually adopted to form a heat preservation layer.

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. 1 to 4, 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 pieces 300 are arranged between the end cover 400 and the inner container 200, and the foam pieces 300 have the heat preservation effect and also play a role in buffering 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. 5 to 7, in other embodiments of the present application, 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 a certain filling pressure, the circular arc-shaped end surface of the foam piece 300 can disperse the filling pressure to act 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 the 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. 5, a first foam member 310 is connected to the other end of the inner container 200, a plurality of supporting portions 311 are formed at one end of the first foam member 310 connected to the inner container 200, an inner container following surface 312 adapted to the end portion of the inner container 200 is formed on the supporting portions 311, the inner container following surface 312 is an arc-shaped groove structure extending inwards, the radian of the inner container following surface 312 is adapted to the end portion of the inner container 200 connected to the inner container 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 inner container 200 to support and connect the inner container 200.

As shown in fig. 8, 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 the 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.

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 limiting tip 610 and the threading sleeve 620, in the installed state, the threading sleeve 620 on the threading member 600 extends from the through hole 110 to 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 on the threading member 600 can be selected according to the actual requirements of users, so that the passing of wire harnesses with different powers and overall dimensions is met, the high-power and low-power universality is realized, and the fine improvement is realized.

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 member 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 portion 431, a second wire fixing groove 4321 is formed on one surface of the wire pressing portion 432, which is in contact with the wire fixing portion 431, a wire pressing hole is formed between the wire fixing portion 431 and the wire pressing portion 432 in an installation state, and a wire harness penetrates through the wire pressing hole.

In order to prevent the wire pressing part 432 from being lost in a disassembled state, the wire fixing part 431 is connected with the wire pressing part 432 through the connecting part 433, the connecting part 433 is of a plastic connecting strip structure, the wire pressing part 432 is connected to the wire fixing part 431 through the connecting part 433 in the disassembled state, and 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 in an installed state.

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. 12 and 13, the end cap 400 is formed with a mounting portion 421 extending downward, and the threading channel 420 is formed on the mounting 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 are only embodiments of the present invention, but the scope of protection 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 all covered by the scope of protection of the present invention, and therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims (10)

1. A water heater, comprising:

an outer housing having an installation cavity formed therein;

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

end covers respectively positioned at two ends of the outer shell;

the foam piece is positioned between the inner container and the end cover, a connecting outer edge is formed on one side, close to the end cover, of the foam piece and is used for being in contact connection with the end cover, and a deformation cavity is formed between the foam piece and the end cover.

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,

one end of the first foam piece, which is connected with the inner container, is provided with a plurality of supporting parts, and the supporting parts are provided with following surfaces matched with the end parts of the inner container.

4. The water heater of claim 2,

the outer sides of the inner container, the first foam piece and the second foam piece are wrapped with foam bags, and foam materials are filled in the foam bags.

5. The water heater of claim 4,

the material of foaming bag is PE, the end cover is located the second foam piece outside.

6. The water heater of claim 2,

the shell body is formed with the through-hole, be formed with the threading passageway on the end cover, the last line threading spare that can dismantle and be connected with of threading passageway, the line threading spare includes spacing end and threading sleeve pipe, be formed with in the threading spare and run through spacing end and threading sheathed tube threading chamber, under the installation state, on the line threading spare the threading sleeve pipe is followed the through-hole extends to in the threading passageway.

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;

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.

9. 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.

10. The water heater of claim 6,

the end cover is also provided with an inserting part for connecting a circuit board, the inserting part is provided with an inserting groove with an upward opening, and the circuit board is inserted into the inserting groove.

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