CN218672624U

CN218672624U - Double-liner electric water heater

Info

Publication number: CN218672624U
Application number: CN202222261058.4U
Authority: CN
Inventors: 曾宪芒; 马腾; 赵小勇; 王军
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: 2021-08-27
Filing date: 2022-08-26
Publication date: 2023-03-21
Anticipated expiration: 2032-08-26
Also published as: CN115727535A; CN115727533A; CN219177964U; CN113776189A; CN115727534A

Abstract

The utility model discloses a two courage electric water heater, include: the first inner container is provided with a first through hole; the second inner container is provided with a second through hole, the edge of the second through hole is provided with a communicating part, and the communicating part is of an annular structure and extends out of the second inner container; wherein the communication part is inserted into the first through hole, and the communication part and the first inner container are welded together. The welding of the communicating part is completed in the inner containers, so that the length of the communicating part between the two inner containers is reduced, the overall dimension of the double-container electric water heater is further reduced, and the installation space of the whole machine is effectively reduced.

Description

Double-liner electric water heater

Technical Field

The utility model belongs to the technical field of domestic appliance, especially, relate to a double-container electric water heater.

Background

At present, water heaters are household appliances commonly used in daily life of people, and the water heaters are divided into electric water heaters, gas water heaters, heat pump water heaters, solar water heaters and the like. Electric water heaters are widely used because of their 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 has the characteristics of large water yield, stable water temperature and the like due to the arrangement of a water tank, and is purchased and used by more families. For a conventional water storage type electric water heater, the conventional water storage type electric water heater generally comprises a water tank, an electric heating component and an electric control board, 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 performance of the water tank.

The existing water storage type water heater adopts a double-container mode in order to reduce the thickness of the whole machine, improve the water storage capacity of the water heater and meet the requirement of a user on a large amount of water. The communicating pipe between two inner bags is respectively welded on the side wall of the inner bag from the outside of the inner bag by two-layer welding, and because of the process requirements of two-layer welding, the influences of the size of a gun head of a welding gun, the width of a welding bead and the like, under the welding process, the distance between the two inner bags is required to be more than or equal to 30mm, the welding quality can be ensured, and the requirements of enamel and pressing are met. Therefore, the height of the whole water heater can be limited, the miniaturization of the appearance size is not facilitated, the height of the whole water heater is high, the installation condition is limited, and the water heater cannot be installed in a small installation space.

Therefore, a double-liner electric water heater is developed, the overall size of the water heater is reduced by shortening the length of a communication pipe between two liners, and the technical problem to be solved urgently is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-liner electric water heater, through the welding of the inside completion intercommunication portion at the inner bag, reduce the length of intercommunication portion between two inner bags, and then reduce double-liner electric water heater's overall dimension to the effectual installation space who reduces the complete machine.

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

a housing;

the first inner container is provided with a first through hole;

the second liner is provided with a second through hole, the edge of the second through hole is provided with a communicating part, the communicating part is of an annular structure and extends out of the second liner, and a second liner opening is formed in one end part of the second liner;

wherein the communicating part is inserted into the first through hole, the communicating part is welded with the first inner container and forms a welding seam in the inner part of the first inner container, and the first inner container and the second inner container are arranged in the outer shell.

In an embodiment of the present application, the weld is formed between an edge of the first through hole and an outer wall or an edge of the communication portion.

In an embodiment of the application, an auxiliary connecting part is arranged at the edge of the first through hole, and the auxiliary connecting part is of an annular structure and extends into the first inner container; the auxiliary connecting portion surrounds the outside of the communicating portion, and the auxiliary connecting portion and the communicating portion are welded together.

In an embodiment of the present application, the communicating portion is an outward flange disposed on the second through hole, and the auxiliary connecting portion is an inward flange disposed on the first through hole.

In an embodiment of the application, the welding seam is formed at the connecting part of the outer flanging and the inner flanging.

In an embodiment of the application, a deep drawing process is adopted to form the communicating part at the edge of the second through hole, and a deep drawing process is adopted to form the auxiliary connecting part at the edge of the first through hole.

In an embodiment of the application, a first profiling platform is arranged on the first inner container, and the first through hole is arranged on the first profiling platform; and a second profiling platform is arranged on the second inner container, and the second through hole is formed in the second profiling platform.

In an embodiment of the application, the first profiling platform protrudes out of the outer wall of the first inner container, and the second profiling platform protrudes out of the outer wall of the second inner container; or the first compression platform is sunken in the outer wall of the first inner container, and the second compression platform is protruded out of the outer wall of the second inner container.

In an embodiment of the present application, the first profiling platform abuts against the second profiling platform.

In an embodiment of the present application, the first through hole is provided with a flow guide component extending to the inside of the first inner container; and/or the second through hole is provided with a flow guide component extending to the inside of the second inner container.

Compared with the prior art, the utility model discloses an advantage is with positive effect: through set up the through-hole on the inner bag, second through-hole on the second inner bag is provided with the intercommunication portion, when the equipment, insert the intercommunication portion in the first through-hole in first, with satisfy the requirement of intercommunication each other between two inner bags through the intercommunication portion, and, when welding to intercommunication portion and first inner bag, welder will stretch into in the first inner bag from its inside welding operation with the intercommunication portion of accomplishing, thus, alright do not receive the restriction of distance between two inner bags on welding the inner bag, the inner space that utilizes the inner bag supplies welder to carry out welding operation, with the effectual interval that shortens first inner bag and second inner bag, thereby finally reduce the overall dimension of water heater, the effectual installation space that has reduced the complete machine, provide better use experience and sense organ impression for the user.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a front view of an embodiment of the dual bladder electric water heater of the present invention;

FIG. 2 is a partial schematic view of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the dual bladder electric water heater of FIG. 1;

FIG. 4 is one of the partial schematic views at B in FIG. 3;

FIG. 5 is a second partial schematic view of FIG. 3 at B;

FIG. 6 is a front view of another embodiment of the dual bladder electric water heater of the present invention;

FIG. 7 is a partial schematic view at C of FIG. 6;

fig. 8 is a cross-sectional view of another embodiment of the dual bladder electric water heater of the present invention.

Description of reference numerals:

100, a first inner container;

110, a first left head;

120, a first right seal head;

130, a first side wall;

131, a first via hole;

132, a first profiling platform;

133, an auxiliary connection;

200, a second inner container;

210, a second left end socket;

220, a second right end enclosure;

230, a second sidewall;

231, a second via hole;

232, a second profiling platform;

300, a communication part;

400, a flow guide component.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled 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. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

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 comprises an outer shell and an inner container, and an insulating layer is formed between the outer shell and the inner container. Wherein, the shell is generally made of plastic materials 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 requirements.

As the requirements of people on life quality are higher and higher, the number of family population is more and more, along with the more and more requirements of users on water storage type water heaters with large water storage capacity, and when customers demand large water storage capacity, higher requirements are provided for the overall size of the water heater, the overall size of the water heater needs to be as thin as possible, the visual effect is good, and meanwhile, the space is saved. Therefore, double-liner electric water heaters and even multi-liner electric water heaters are produced at the same time.

In addition, the heat preservation layer formed between shell and the inner bag, commonly used heat preservation material have: 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.

Wherein, for the inner bag that adopts the metal courage body, because influenced by water quality, the inside of inner bag corrodes easily, for this reason, still dispose the magnesium stick on the water tank, the magnesium stick inserts in the inside water storage cavity of water tank.

Magnesium is the lowest potential metal in the electrochemical series and is physiologically nontoxic. Therefore, the magnesium rod protective liner is very ideal. The size of the magnesium rod is directly related to the length of the time for protecting the inner container 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 in the water tank reaches a set value, the electric control board controls the electric heating part to be powered off.

First embodiment, as shown in fig. 1-7, the present invention provides a dual-bladder electric water heater, which comprises a water tank, an electric heating component and an electric control board, wherein the water tank generally comprises a housing (not labeled), a first bladder 100 and a second bladder 200,

the double-liner electric water heater comprises a vertical double-liner electric water heater and a horizontal double-liner electric water heater. The horizontal double-liner electric water heater is taken as an example for explanation.

The length of the communication part 300 is shortened by changing the welding mode of the first inner container 100, the second inner container 200 and the communication part 300, so that the whole size of the electric water heater is reduced.

In this embodiment, the first inner container 100 includes a first left sealing head 110, a first right sealing head 120 and a first side wall 130, and a first through hole 131 is formed on the first side wall 130. The second inner container 200 includes a second left sealing head 210, a second right sealing head 220 and a second side wall 230, a second through hole 231 is opened on the second side wall 230, wherein a communication portion 300 extending towards the outside is provided at an edge of the second through hole 231.

Specifically, the first through hole 131 is punched by the first profiling platform 132 on the first sidewall 130 of the first inner container 100; the first through hole 131 with high quality can be obtained by punching the first press platform 132 of the first side wall 130 of the first inner container 100, and meanwhile, the processing efficiency is high and the processing cost is low.

In addition, a second through hole 231 is punched from a second profiling platform 232 on the second side wall 230 of the second liner 200. The second through hole 231 with high quality can be obtained by punching the second pressing platform 232 of the second side wall 230 of the second inner container 200, and meanwhile, the machining efficiency is high and the machining cost is low. In addition, in the molding process of the second through hole 231, a deep drawing process is adopted to form the communication part 300 at the edge of the second through hole 231, and the communication part 300 extends out of the second inner container 200.

In order to connect the two inner containers together and to communicate the interiors with each other, the first inner container 100 and the second inner container 200 are connected together through the communication portion 300 and to communicate the first inner container 100 and the second inner container 200 with each other.

The communication portion 300 is integrally formed on the second liner 200, and in the welding process, it is only necessary to weld the communication portion 300 to the first liner 100.

In a specific assembling process, the positional relationship between the first inner container 100 and the second inner container 200 is adjusted so that the communication portion 300 is inserted into the corresponding first through hole 131 of the first inner container 100, and thus, the first inner container 100 and the second inner container 200 are precisely pre-assembled together by virtue of the communication portion 300. The communication portion 300 can play a role in positioning the positional relationship between the first and second

inner containers

100 and 200.

In the actual welding process, in order to meet the requirement of the design of compact structure, the distance between the first inner container 100 and the second inner container 200 is small, and the welding gun cannot extend into the two inner containers for welding. Therefore, during the welding process, the welding torch is inserted into the first inner container 100, the communication part 300 is welded to the inside of the first inner container 100, and the internal space of the first inner container 100 is fully utilized to meet the requirement of the welding torch for the operation space during the welding operation.

Because the welding space in the first inner container 100 is smaller, the weld bead is not easy to clean after welding, and argon arc welding adopts non-filler wire welding.

Wherein, for the distance between the first inner container 100 and the second inner container 200, the distance between the first inner container 100 and the second inner container 200 for the communication part 300 to be exposed is limited, and in the actual operation process, the distance between the first inner container 100 and the second inner container 200 can be reduced to 6mm, and if the welding seam between the inner container middle head and the side wall is polished to be flat, the distance between the first inner container 100 and the second inner container 200 can be reduced to below 6 mm.

Adopt two guarantor weldings between traditional communicating pipe and the two inner bags to contrast, 30mm is guaranteed to two inner bag intervals, and two inner bag intervals have reduced 24mm. On the premise of not influencing the performance of the whole machine, the height of the water heater can be reduced by 24mm, and the installation space of the whole machine is effectively reduced.

A plurality of communication parts 300 may be provided between the first and second

inner containers

100 and 200, and the communication parts may serve to allow water to flow therethrough, or may accommodate heating members to be distributed between the first and second

inner containers

100 and 200 as needed.

Meanwhile, the top end of the water outlet pipe also extends into the upper end of the second inner container 200, and thus the water outlet pipe also needs to extend into the second inner container 200 through the first inner container 100.

Therefore, the number of the communication parts 300 is determined according to different requirements of different water heaters. In the present embodiment, the number of the communication portions 300 is three. The three communication portions 300 are provided at intervals in the longitudinal direction of the first and

second side walls

130 and 230.

In some embodiments of the present application, a first profiling platform 132 is disposed on the first inner container, and the first through hole is disposed on the first profiling platform; and a second profiling platform 232 is arranged on the second inner container, and the second through hole is formed in the second profiling platform.

Specifically, during the process of manufacturing the inner container, the first side wall 130 is formed by a first through hole 131 on a first profiling platform 132 formed by stamping, and the second side wall 230 is formed by a deep drawing process during the process of forming a second through hole 232, so as to form a tubular structure on the second side wall 230, and the connection portion between the tubular structure and the second inner wall 230 forms the second through hole 232, and the tubular structure itself forms the communication portion 300.

In another embodiment, in order to facilitate positioning and installation of the first liner 100 and the second liner 200, and to make the distance between the first liner 100 and the second liner 200 smaller, the first profiling platform may protrude out of the outer wall of the first liner, and the second profiling platform protrudes out of the outer wall of the second liner.

Specifically, in the process of assembling and welding the first liner 100 and the second liner 200, the profiling platforms on the two liners are used for positioning and supporting. After the communication parts are inserted into the corresponding first through holes, the first profiling platform and the second profiling platform abut against each other. In this way, the profiling platform is abutted to be positioned and supported, and the communication part is matched with the first through hole to be positioned, so that the first inner container 100 and the second inner container 200 can be firmly and stably preassembled together.

Similarly, the first pressing platform can be recessed in the outer wall of the first inner container, and the second pressing platform can be protruded out of the outer wall of the second inner container.

In this way, after the first and

second bladders

100, 200 are assembled, the second profiled platform is sunk into the first profiled platform to bring the distance between the first and

second bladders

100, 200 closer.

In some embodiments, as shown in fig. 4, the free end of the communication portion 300 extends into the first inner container through the first through hole and protrudes from the inner wall of the first inner container, and during the welding process, the communication portion 300 and the inner wall of the first inner container are welded, so that the welded seam is distributed around the outer circumferential wall of the communication portion 300.

In other embodiments, as shown in fig. 5, an auxiliary connection portion is disposed at an edge of the first through hole, and the auxiliary connection portion is of an annular structure and extends into the first inner container; the auxiliary connecting portion surrounds the outside of the communicating portion, and the auxiliary connecting portion and the communicating portion are welded together.

Specifically, the auxiliary connecting portion 133 is formed on the first through hole, the auxiliary connecting portion 133 extends into the first inner container, the auxiliary connecting portion 133 and the first inner container are an integral structure, and the auxiliary connecting portion 133 may be processed in the same manner as the communicating portion, that is, the auxiliary connecting portion 133 with a tubular structure is formed by a deep drawing process.

When the assembly welding is performed, the communicating portion is inserted into the auxiliary connecting portion 133 through the first through hole, so that the auxiliary connecting portion 133 can support the communicating portion inserted into the first inner container, the first inner container and the second inner container are connected more stably, a welding surface formed between the auxiliary connecting portion 133 and the communicating portion can be kept relatively fixed in the welding process, and the welding quality is improved.

In one embodiment, for the entity representing the communication portion and the auxiliary connection portion, the communication portion is an outward flange disposed on the second through hole, and the auxiliary connection portion is an inward flange disposed on the first through hole.

In some embodiments, as shown in fig. 8, in order to increase the convection flow rate of water between the two inner containers, the water temperature difference is used to accelerate the water circulation between the two inner containers, so that hot water is delivered to the top inner container and cold water is delivered to the bottom inner container. For this purpose, a flow guide element 400 may be provided on the connecting section, which flow guide element extends into the first and/or second inner container.

Specifically, the diversion member 400 extends from the communicating portion 300 toward the inner container inside of the corresponding side, and when in use, taking the example that the first inner container 100 is located below the second inner container 200 in fig. 8 as an example, the diversion member 400 may be of a cylindrical structure so that the cold water at the bottom of the second inner container 200 can be rapidly conveyed to the bottom of the first inner container 100, thereby accelerating the hot water at the top of the first inner container 100 to enter the second inner container 200 from the other corresponding communicating portions 300, so as to accelerate the water circulation flowing speed between the first inner container 100 and the second inner container 200.

In actual use, if necessary, the diversion member 400 may extend toward the second inner container 200, so that the hot water at the top of the first inner container 100 is rapidly delivered to the middle-upper portion of the second inner container 200, and the cold water at the bottom of the second inner container 200 enters the first inner container 100 through the other communication portion 300.

In the second embodiment, based on the dual bladder electric water heater in the first embodiment, a specific assembling method of the first bladder 100 welded to the second bladder 200 through the communication portion 300 will be described below.

The assembling method comprises the following steps: the communicating portion is inserted into the first through hole of the first inner container, and the communicating portion is welded to the first inner container from the inside of the first inner container.

Specifically, in the specific assembling process of the double-liner electric water heater, a second through hole and a communicating part are formed on the second side wall of the second liner by adopting a deep drawing process, and similarly, a first through hole is formed by punching on the first side wall of the first liner.

Then, assemble first inner bag and second inner bag together to make the intercommunication portion insert in the first through-hole, utilize intercommunication portion and first through-hole cooperation, make first inner bag and second inner bag carry out prepositioning, and then ensure that the position between two inner bags keeps relatively fixed when the welding, in order to improve welding quality.

When the communicating part is welded with the first inner container, the inner space of the first inner container is used for a welding gun to perform welding operation, and the distance between the first inner container and the second inner container is reduced, so that the overall size of the water heater is finally reduced, and the installation space of the whole machine is effectively reduced.

In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. 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 used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made, or equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A double-liner electric water heater is characterized by comprising:

a housing;

the first liner is provided with a first through hole;

2. The dual bladder electric water heater according to claim 1, wherein the weld is formed between an edge of the first through hole and an outer wall or edge of the communication portion.

3. The double-liner electric water heater according to claim 1, wherein an auxiliary connecting part is arranged at the edge of the first through hole, and the auxiliary connecting part is of an annular structure and extends into the first liner; the auxiliary connecting portion surrounds the outside of the communicating portion, and the auxiliary connecting portion and the communicating portion are welded together.

4. The dual-bladder electric water heater according to claim 3, wherein the communicating portion is an outward flange disposed on the second through hole, and the auxiliary connecting portion is an inward flange disposed on the first through hole.

5. The dual bladder electric water heater according to claim 4, wherein the joint of the outer flange and the inner flange forms the weld.

6. The twin-bladder electric water heater as claimed in claim 4, wherein the communicating portion is formed at the edge of the second through hole by a deep drawing process, and the auxiliary connecting portion is formed at the edge of the first through hole by a deep drawing process.

7. The dual bladder electric water heater of claim 1, wherein the first bladder is provided with a first profiled platform, and the first through hole is provided on the first profiled platform; and a second profiling platform is arranged on the second inner container, and the second through hole is formed in the second profiling platform.

8. The dual bladder electric water heater of claim 7, wherein the first profiled platform protrudes from an outer wall of the first bladder, and the second profiled platform protrudes from an outer wall of the second bladder; or the first compression platform is sunken in the outer wall of the first inner container, and the second compression platform is protruded out of the outer wall of the second inner container.

9. The dual bladder electric water heater of claim 8, wherein the first platen rests on the second platen.

10. The dual bladder electric water heater according to claim 1, wherein the first through hole is provided with a flow guide member extending to the inside of the first inner bladder; and/or the second through hole is provided with a flow guide component extending to the inside of the second inner container.