CN220582728U

CN220582728U - Liner assembly and electric water heater

Info

Publication number: CN220582728U
Application number: CN202222591029.4U
Authority: CN
Inventors: 曾宪芒; 王孟菲; 王军; 李勇; 于永飞
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2024-03-12
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses an inner container assembly and an electric water heater, wherein the inner container assembly comprises: the first inner container is provided with a first connecting pipe which extends to the outside of the first inner container and is communicated with the inside of the first inner container; the second inner container is provided with a second connecting pipe, and the second connecting pipe extends to the outside of the second inner container and is communicated with the inside of the second inner container; the welding auxiliary component is of an annular structure, and is arranged on the first connecting pipe and the second connecting pipe and forms a welding seam on the outer pipe wall of the first connecting pipe and the outer pipe wall of the second connecting pipe. The connecting pipes of the two inner containers are welded together through the welding auxiliary parts, so that the inner walls of the connecting pipes are free of weld flash, the influence of welding seams on enamel is reduced, the enamel effect is improved, and the use reliability of the inner containers is improved.

Description

Liner assembly and electric water heater

Technical Field

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

Background

At present, water heaters are household appliances commonly used in daily life of people, and are classified into electric water heaters, gas water heaters, heat pump water heaters, solar water heaters and the like. The electric water heater is widely used because of its convenient use. The electric water heater can be divided into a water storage type electric water heater and an instant heating type electric water heater according to the heating power, and the water storage type electric water heater is provided with a water tank, so that the electric water heater has the characteristics of large water yield, stable water temperature and the like, and is purchased and used by more families.

For conventional water storage type electric water heater, it generally includes a water tank, an electric heating component and an electric control board, the water tank includes a housing and an inner container, the inner container is disposed in the housing, and a heat insulation layer is formed between the housing and the inner container to improve the heat insulation performance of the water tank. The electric water heater adopting the double-liner structure is widely popularized and used because of large water storage capacity and small overall thickness. When the two inner containers are assembled, the connecting pipes extending out of the side walls of the inner containers are usually required to be welded so that the two inner containers are communicated with each other. However, due to the influence of welding, the welded part of the two connecting pipes after butt joint is easy to form a weld flash, so that the incomplete enamel is easy to appear at the weld flash in the enamel process, and the situation that the weld flash is easy to corrode and finally leakage is caused in the later use is caused.

In view of this, it is an object of the present utility model to devise a technique for reducing the influence of the weld on the enamel to improve the enamel effect and the reliability of the liner.

Disclosure of Invention

The utility model provides an inner container assembly and an electric water heater, wherein connecting pipes of two inner containers are welded together through welding auxiliary parts, so that the inner wall of the connecting pipe is free of weld flash, the influence of welding seams on enamel is reduced, the enamel effect is improved, and the use reliability of the inner containers is improved.

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

a liner assembly, comprising:

the first inner container is provided with a first connecting pipe which extends to the outside of the first inner container and is communicated with the inside of the first inner container;

the second inner container is provided with a second connecting pipe, and the second connecting pipe extends to the outside of the second inner container and is communicated with the inside of the second inner container;

the welding auxiliary component is of an annular structure, and is arranged on the first connecting pipe and the second connecting pipe and forms a welding seam on the outer pipe wall of the first connecting pipe and the outer pipe wall of the second connecting pipe.

In an embodiment of the present application, the welding auxiliary member is sleeved on the first connecting pipe and the second connecting pipe, one end of the welding auxiliary member is welded to the outer pipe wall of the first connecting pipe, and the other end of the welding auxiliary member is welded to the outer pipe wall of the second connecting pipe.

In an embodiment of the present application, a first positioning portion is disposed on an inner wall of the welding auxiliary component, and an end portion of the first connecting pipe and an end portion of the second connecting pipe are abutted against the first positioning portion.

In an embodiment of the present application, the first positioning portion is a first annular gasket, and the first annular gasket extends along an inner wall of the welding auxiliary component.

In an embodiment of the present application, the welding auxiliary member is inserted inside the first connection pipe and the second connection pipe.

In an embodiment of the present application, the outer wall of the welding auxiliary component is provided with a second positioning portion, and the end portion of the first connecting pipe and the end portion of the second connecting pipe are abutted against the second positioning portion.

In an embodiment of the present application, edges of the second positioning portion are welded to the pipe orifice of the first connecting pipe and the pipe orifice of the second connecting pipe respectively.

In an embodiment of the present application, an inner surface of two end portions of the welding auxiliary component is provided with a rounded arc surface structure facing the corresponding end portion.

In an embodiment of the present application, a flow guiding component is inserted into the first connecting pipe and/or the second connecting pipe, and the flow guiding component extends into the first liner or the second liner.

The application also provides an electric water heater, which comprises a shell and further comprises the inner container assembly, wherein the inner container assembly is arranged in the shell.

Compared with the prior art, the utility model has the advantages and positive effects that: through increasing the auxiliary connection when welding auxiliary component carries out the welding, welding auxiliary component can weld with the connecting pipe on two inner bags respectively, the welding seam will form on the outer pipe wall of connecting pipe, and then make the inner tube wall of two connecting pipes can not produce the weld flash, carry out inside enamel in-process in the later stage, alright avoid causing the enamel incomplete because of the inside weld flash that forms of connecting pipe, make the enamel effect of inner bag more complete effectively, with optimizing the enamel effect, the connecting pipe welding together of two inner bags through welding auxiliary component, and then make the inner wall of connecting pipe have the weld flash, with the influence of reduction welding seam to enamel, enamel effect has been improved and inner bag use reliability has been improved.

Drawings

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

FIG. 1 is a schematic view of an embodiment of a liner assembly according to the present utility model;

FIG. 2 is one of the cross-sectional views of the liner assembly of FIG. 1;

FIG. 3 is a partial schematic view of FIG. 2 at A;

FIG. 4 is a second cross-sectional view of the liner assembly of FIG. 1;

FIG. 5 is a partial schematic view of FIG. 4 at B;

FIG. 6 is a schematic view of the welding auxiliary member of FIG. 4;

FIG. 7 is a schematic view of another embodiment of a liner assembly according to the present utility model;

FIG. 8 is one of the cross-sectional views of the liner assembly of FIG. 7;

FIG. 9 is a partial schematic view of FIG. 8C;

FIG. 10 is a schematic view of the welding auxiliary member of FIG. 8;

FIG. 11 is a schematic view of a liner assembly according to another embodiment of the present utility model.

Reference numerals illustrate:

a first liner 1;

a first connection pipe 11;

a second liner 2;

a second connection pipe 21;

a welding auxiliary member 3;

a first positioning portion 31;

a second positioning portion 32;

a cambered surface structure 33;

a flow guiding member 4.

Detailed Description

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

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

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

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

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

The electric water heater generally comprises a water tank, an electric heating component, an electric control board and the like, wherein a water storage cavity is formed in the water tank to store water to be heated, the electric heating component is inserted into the water storage cavity formed by the water tank, and the electric control board is used for controlling the electric heating component to be powered on and powered off so as to heat the water in the water tank to a set temperature.

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

As people have higher requirements on life quality, the number of family population is increased, and as users have more and more requirements on water storage type water heaters with large water storage capacity, customers have higher requirements on the overall size of the water heater while the customers have large water storage capacity, the overall size of the water heater is as thin as possible, the visual effect is good, and meanwhile, the space is saved. Thus, the double-liner electric water heater is a multi-liner water heater.

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

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

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

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

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

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

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

In a first embodiment, as shown in fig. 1, the present utility model provides a liner assembly, including:

the first inner container 1, the first inner container 1 is provided with a first connecting pipe 11, and the first connecting pipe 11 extends to the outside of the first inner container 1 and is communicated with the inside of the first inner container 1;

the second inner container 2 is provided with a second connecting pipe 21, and the second connecting pipe 21 extends to the outside of the second inner container 2 and is communicated with the inside of the second inner container 2;

and the welding auxiliary part 3, wherein the welding auxiliary part 3 is of an annular structure, the welding auxiliary part 3 is arranged on the first connecting pipe 11 and the second connecting pipe 21, and the welding auxiliary part 3 forms welding seams on the outer pipe walls of the first connecting pipe 11 and the second connecting pipe 21.

Specifically, the liner assembly in this embodiment includes two liners connected together, wherein a water inlet pipe is disposed on one liner, and a water outlet pipe is disposed on the liner or the other liner. As shown in fig. 1, the first liner 1 is provided with a water inlet pipe 101 and a water outlet pipe 102.

The middle barrel side wall of the first inner container 1 is provided with a first connecting pipe 11 extending outwards, and the middle barrel side wall of the second inner container 2 is provided with a second connecting pipe 21 extending outwards correspondingly. And during the assembly welding, the first connection pipe 11 is disposed opposite to the corresponding second connection pipe 21, and further the oppositely disposed first connection pipe 11 and second connection pipe 21 are connected together by the welding auxiliary member 3.

In the actual welding process, the operator welds with the welding auxiliary member 3 on the outer pipe walls of the first connection pipe 11 and the second connection pipe 21 by means of the welding gun, so that the welding auxiliary member 3 welds the first connection pipe 11 and the second connection pipe 21 together.

And after the welding is completed, the welding seam formed between the welding auxiliary member 3 and the first and second connection pipes 11 and 21 is located on the outer pipe wall, so that the inner pipe walls of the first and second connection pipes 11 and 21 do not form a welding seam, and thus no weld flash is generated.

In the later enamel process, the inner pipe wall of the connecting pipe is not affected by welding to form a weld flash, so that after enamel, a high-quality enamel layer is formed on the inner pipe wall of the connecting pipe to ensure the corrosion resistance and water leakage resistance of the liner.

Based on the above-mentioned technical solution, the welding auxiliary member 3 is mounted in at least two ways, that is, the welding auxiliary member 3 is disposed outside the first connecting pipe 11 and the second connecting pipe 21; in the second embodiment, the welding auxiliary member 3 is provided inside the first connection pipe 11 and the second connection pipe 21.

As shown in fig. 2 and 3, in the first embodiment, the welding auxiliary member 3 is fitted over the first connecting pipe 11 and the second connecting pipe 21, one end portion of the welding auxiliary member 3 is welded to the outer pipe wall of the first connecting pipe 11, and the other end portion of the welding auxiliary member 3 is welded to the outer pipe wall of the second connecting pipe 21.

Specifically, before welding, it is necessary to first sleeve the welding auxiliary member 3 outside the first connection pipe 11 and the second connection pipe 21, i.e., insert the ends of the first connection pipe 11 and the second connection pipe 21 into the welding auxiliary member 3. Then, welding operations are performed at both end portions of the welding auxiliary member 3 using a welding gun so that the welding auxiliary member 3 is welded to the first connection pipe 11 and the second connection pipe 21.

In one embodiment, as shown in fig. 4 to 6, the inner wall of the welding auxiliary member 3 is provided with a first positioning portion 31, and the end portion of the first connection pipe 11 and the end portion of the second connection pipe 21 are abutted against the first positioning portion 31.

Specifically, before welding, the first connection pipe 11 and the second connection pipe 21 are inserted into the welding auxiliary member 3, respectively, and the ends of the first connection pipe 11 and the second connection pipe 21 are positioned by the first positioning portion 31.

In some embodiments, for the first positioning portion 31, it may be a first annular gasket, which is arranged extending along the inner wall of the welding auxiliary member 3.

As shown in fig. 7 to 10, for the second mode, the welding auxiliary member 3 is inserted inside the first connection pipe 11 and the second connection pipe 21.

Specifically, before welding, the welding auxiliary member 3 is inserted into the first connecting pipe 11 and the second connecting pipe 21, and then welded to the nozzle of the first connecting pipe 11 and the nozzle of the second connecting pipe 21 outside the welding auxiliary member 3 by a welding gun so that the welding auxiliary member 3 is welded to the first connecting pipe 11 and the second connecting pipe 21

In one embodiment, the outer wall of the welding auxiliary member 3 is provided with a second positioning portion 32, and the end portion of the first connection pipe 11 and the end portion of the second connection pipe 21 abut against the second positioning portion 32.

Specifically, the second positioning portion 32 is capable of positioning the size of the insertion of the welding auxiliary member 3, and at the same time, the second positioning portion 32 is to be sandwiched between the nozzle of the first connecting pipe 11 and the nozzle of the second connecting pipe 21 at the time of welding, and the second positioning portion 32 is welded to the nozzle of the first connecting pipe 11 and the pipe of the second connecting pipe 21 by means of a welding gun.

In some embodiments, the edges of the second positioning portion 32 are welded to the nozzles of the first connection pipe 11 and the second connection pipe 21, respectively.

In another embodiment, the inner surfaces of the two ends of the welding auxiliary member 3 are provided with a rounded arc surface structure 33 rounded toward the corresponding end.

Specifically, the cambered surface structure 33 is formed on the inner surfaces of the two end parts of the welding auxiliary component 3, and the cambered surface structure 33 can better realize gentle transition with the inner pipe wall surface of the connecting pipe in the enamel process, so that an enamel layer formed inside can be gently covered between the welding auxiliary component 3 and the inner pipe wall of the connecting pipe, and the quality of the enamel layer is improved.

Based on the above technical solution, optionally, as shown in fig. 11, in order to increase the convection flow rate of the water flow between the two inner containers, the water temperature difference is utilized to accelerate the water circulation flow between the two inner containers, so that the hot water is conveyed to the inner container at the top and the cold water is conveyed to the inner container at the bottom. For this purpose, a flow guide element 4 is inserted into the first connection tube 11 and/or the second connection tube 21, the flow guide element 4 extending into the first or the second inner container 1, 2.

Specifically, when the flow guiding component 4 extends from the communicating portion 300 toward the inner container at the corresponding side, taking the case that the first inner container 1 is located below the second inner container 2 in fig. 11 as an example in use, the flow guiding component 4 may have a cylindrical structure so that cold water at the bottom of the second inner container 2 can be quickly conveyed to the bottom of the first inner container 1, and then hot water at the top of the first inner container 1 is accelerated to enter the second inner container 2 from the corresponding other communicating portion 300, so as to accelerate the water circulation flow speed between the first inner container 1 and the second inner container 2.

In the actual use process, the flow guiding component 4 can extend towards the second inner container 2 as required, so that hot water at the top of the first inner container 1 is quickly conveyed to the middle upper part of the second inner container 2, and cold water at the bottom of the second inner container 2 enters the first inner container 1 through the first connecting pipe and the second connecting pipe at other parts.

The second embodiment of the present application further provides an electric water heater, which comprises a housing, and further comprises the liner assembly, wherein the liner assembly is disposed in the housing.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims

1. A liner assembly, comprising:

2. The liner assembly of claim 1, wherein the welding aid is sleeved outside the first and second connection tubes, one end of the welding aid is welded to the outer tube wall of the first connection tube, and the other end of the welding aid is welded to the outer tube wall of the second connection tube.

3. The liner assembly according to claim 2, wherein an inner wall of the welding auxiliary member is provided with a first positioning portion against which an end of the first connection pipe and an end of the second connection pipe are abutted.

4. A liner assembly according to claim 3, wherein the first locating portion is a first annular spacer extending along an inner wall of the welding aid.

5. The liner assembly of claim 1, wherein the welding aid is inserted inside the first and second connection tubes.

6. The liner assembly according to claim 5, wherein the outer wall of the welding auxiliary member is provided with a second positioning portion against which the end of the first connection pipe and the end of the second connection pipe are abutted.

7. The liner assembly of claim 6, wherein edges of the second locating portions are welded to the spout of the first connection tube and the spout of the second connection tube, respectively.

8. The liner assembly according to claim 5, wherein the inner surfaces of both end portions of the welding auxiliary member are provided with a rounded arc surface structure rounded toward the corresponding end portions.

9. The liner assembly according to any one of claims 1-8, wherein a flow guiding member is inserted into the first connection tube and/or the second connection tube, the flow guiding member extending into the first liner or the second liner.

10. An electric water heater comprising a housing, further comprising a liner assembly according to any one of claims 1-9, the liner assembly being disposed in the housing.