CN216080353U

CN216080353U - Electric water heater

Info

Publication number: CN216080353U
Application number: CN202120314832.6U
Authority: CN
Inventors: 闫大伟; 王德君; 杜志杰
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-03-18
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses an electric water heater, which comprises an inner container, an electric heating part and a connecting part, wherein the inner container is internally provided with a heating element; the inner container comprises a first half container and a second half container; the first half liner is of an integrated structure formed by stretching, and one end of the first half liner is provided with a first mounting opening; the second half liner is of an integrated structure formed by stretching, and is connected with the first half liner; the electric heating part is arranged in the inner container and is used for generating heat when being electrified; the connecting component comprises a first flange plate, and the first flange plate is arranged on the outer side of the first mounting opening; the electric heating part is arranged in the inner container, and the outer end part of the electric heating part is installed on the first flange plate. The utility model provides an electric water heater which solves the problems that a welding seam is too much and water leakage is easy to occur, and the use experience of a client is influenced.

Description

Electric water heater

Technical Field

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

Background

At present, an electric water heater is a household appliance commonly used in daily life. An electric water heater generally includes an inner container and an electric heating part inserted into the inner container to heat water stored in the inner container.

At present, the common electric water heater is mostly of a three-section type, and comprises a left end socket, a liner middle barrel and a right end socket which need to be welded for three times, wherein the liner middle barrel is rolled once, and the left end socket, the right end socket and the liner middle barrel are respectively welded once.

In the actual use process of the electric water heater in the prior art, the electric heating component directly heats water in the liner, and the electric heating component is directly contacted with the water and is influenced by water quality, after the electric water heater is heated for a long time, scales are formed on the surface of the electric heating component, so that the electric heating component is easily corroded and damaged, and the electric water heater is low in use safety and reliability.

With the increase of water for living bath, the capacity of the electric water heating tank is developed in the direction of increasing, for large water heaters of more than 50L and 60L, the thickness of the inner container becomes the most important factor for limiting the thickness of the whole machine, the section of the inner container of the electric water heating tank on the market at present is in a standard round shape, the thickness of the whole machine is thicker, the oppression feeling to a user is stronger, and the user can feel unsafe.

Therefore, how to design an electric water heater which can be stably used, is safe and reliable, and brings good visual experience to users is a technical problem to be solved urgently.

Disclosure of Invention

The utility model provides an electric water heater aiming at the problems that the welding seams of the electric water heater are too many and water leakage is easy, and the use experience of customers is influenced, so that the number of the welding seams is reduced, and the stability, the reliability and the safety of the electric water heater are improved.

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

an electric water heater comprises an inner container, an electric heating component and a connecting component; the inner container comprises a first half container and a second half container; the first half liner is of an integrated structure formed by stretching, and one end of the first half liner is provided with a first mounting opening; the second half liner is of an integrated structure formed by stretching, and is connected with the first half liner; the electric heating part is used for generating heat by electrifying; the connecting component comprises a first flange plate, and the first flange plate is arranged on the outer side of the first mounting opening; the electric heating part is arranged in the inner container, and the outer end part of the electric heating part is installed on the first flange plate.

In some embodiments of the present application, an inner ring of the annular plane of the first flange is turned inwards, an outer ring of the annular plane of the first flange is turned outwards, and a plurality of first mounting through holes are formed in the annular plane of the first flange.

In some embodiments of the present application, the first mounting through-hole includes a first end and a second end, the first end having a width greater than a width of the second end.

In some embodiments of the present application, the liner further includes a heat conduction sleeve, one end of the heat conduction sleeve is provided with a second mounting opening, and the heat conduction sleeve passes through the first mounting opening and is mounted in the liner; the electric heating part penetrates through the second mounting hole and is mounted in the heat conduction sleeve, and the electric heating part is connected with the heat conduction sleeve in a sealing mode.

In some embodiments of the present application, the connecting member further includes a second flange, the second flange is provided with a plurality of second mounting through holes, the second mounting through holes correspond to the first mounting through holes, and the second flange is mounted outside the second mounting hole.

In some embodiments of the present application, the connecting member further includes a plurality of bolts and a plurality of nuts, the bolt heads pass through the first mounting through hole first end, the bolt heads are installed at the first mounting through hole second end, the bolt screws pass through the first mounting through hole second end and the second mounting through hole, and the nuts are connected with the bolt screws.

In some embodiments of the present application, the connection component further comprises a first seal disposed between the first connection and the second connection;

and/or the connecting component further comprises a second sealing element which is arranged between the heat-conducting sleeve and the inner container.

In some embodiments of the present application, the inner bladder has an elliptical longitudinal cross-section.

In some embodiments of the present application, the bottom of the inner container is provided with a water inlet, a water outlet and a sewage outlet; and/or a protective layer is arranged on the outer surface of the heat conduction sleeve.

In some embodiments of the present application, the heat conduction sleeve further includes a heat conduction portion filled in a sealed space formed by the heat conduction sleeve and the motor thermal component.

Compared with the prior art, the utility model has the advantages and positive effects that: through designing the inner bag for including half first courage and the half courage of second, first inner bag and second inner bag are the integral type structure through tensile formation, and half first courage welds with the half courage of second, forms a welding seam, reduces the welding seam quantity that the inner bag welds many times and forms, has reduced the risk that the welding seam department leaked, has improved electric water heater's reliability in utilization, stability to improve user experience nature.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken 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 that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of an electric water heater according to the present invention;

FIG. 2 is a side view of one embodiment of an electric water heater in accordance with the present invention;

FIG. 3 is a schematic structural diagram of a first flange of an electric water heater according to the present invention;

FIG. 4 is a side view of the first inner container of the electric water heater according to the present invention;

fig. 5 is a sectional view of an electric water heater according to the present invention;

FIG. 6 is another cross-sectional view of an electric water heater according to the present invention;

in the figure, 10, the inner container; 11, a first half liner; 12, a second half liner; 13, a first mounting port; 14, a water inlet; 15, a water outlet; 16, a sewage draining outlet; 20, a heat conducting sleeve; 21, a second mounting opening; 22, a protective layer; 30, an electric heating component; 41, a first flange plate; 411, a first mounting through hole; 50, a heat conductive portion; 51, a heat conducting block; and 52, heat conducting oil.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.

It should be noted that in the description of the present invention, the terms "upper", "lower", "inside", "outside", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, 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.

Furthermore, it should be noted that in the description of the present invention, the terms "mounted" and "connected" are to be interpreted broadly unless explicitly defined or limited otherwise. For example, it may be a fixed connection, a detachable connection or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to achieve the purpose of improving the use stability of the electric water heater, in the design concept, a mode of separating an electric heating part of the electric water heater from water and reducing the number of welding seams is adopted; in terms of structural design, the electric water heater inner container 10 composed of the first half inner container 11 and the second half inner container 12, the heat conducting sleeve 20, the electric heating part 30 and the connecting part are combined.

In this embodiment, as shown in fig. 1, the inner container 10 includes a first half inner container 11 and a second half inner container 12, wherein the first half inner container 11 and the second half inner container 12 are formed into a desired shape by deep drawing through a sheet metal mold, the first half inner container 11 and the second half inner container 12 can form the inner container 10 by one welding, only one welding seam is provided here, and compared with a current common water heater including three welding seams, the number of welding seams is reduced, and the possibility of water leakage at the welding seam is reduced.

In this embodiment, as shown in fig. 2, the radial cross sections of the first half bladder 11 and the second half bladder 12 of the bladder 10 are both elliptical, that is, the first half bladder 11 and the second half bladder 12 are connected together to form an ellipsoid, so that the appearance of the bladder is flattened, the appearance of the electric water heater is thinner, the installation space of the electric water heater is saved, and the visual effect is more beautiful.

In this embodiment, as shown in fig. 1, the bottom of the inner container 10 is provided with a water inlet 14, a water outlet 15 and a sewage draining outlet 16. By providing the drain outlet 16, the scale and other impurities deposited inside can be discharged. If the sewage draining outlet 16 is not arranged, the connecting part needs to be detached, the operation is complex, and the water leakage is easily caused due to poor installation.

In the present embodiment, as shown in fig. 4, 5 and 6, the inner container 10 is provided with a first mounting opening 13, one end of the heat conducting sleeve 20 is provided with a second mounting opening 21, the other end of the heat conducting sleeve 20 is a closed structure, and the outer surface of the heat conducting sleeve 20 is provided with a protective layer 22. The electric heating part 30 is installed inside the heat conductive sleeve 20 through the second installation opening 21, and the heat conductive sleeve 20 is installed in the inner container 10 through the first installation opening 13.

In the present embodiment, as shown in fig. 5, since the electric heating part 30 is separated from the water in the inner container 10 by the heat conductive cover 20, the direct contact of the water with the electric heating part 30 can be prevented. During the heating process of the electric heating member 30, the heat generated by the electric heating member 30 is transferred to the inner container 10 through the heat conductive sleeve 30, so as to heat the water in the inner container 10.

In the present embodiment, as shown in fig. 5 and 6, the heat conductive sleeve 20 is in direct contact with water as well as transmitting heat generated by the electric heating element 30 to heat water in the inner container 10. Therefore, the heat-conducting sleeve 20 should satisfy both the requirement of rapid heat transfer and the requirement of corrosion resistance. For this reason, the heat-conducting sleeve 20 is generally made of a material with good heat-conducting property, such as: aluminum, copper, iron or the like; in addition, in order to provide the heat conductive sleeve 20 with good corrosion resistance, a protective layer 22 is formed on the exterior of the heat conductive sleeve 20, and the protective layer 22 may be a corrosion-resistant coating sprayed on the surface of the heat conductive sleeve 20, or the protective layer 22 may be an enamel coating formed on the surface of the heat conductive sleeve 20.

In this embodiment, since the inner container 10 forms a sealed cavity for holding water, it is required to ensure that the inner container 10 is connected with the heat-conducting sleeve 20 in a sealing manner, and the first mounting port 13 is connected with the heat-conducting sleeve 20 through a connecting component. For example: a first sealing member, which may be a sealing ring, may be added between the heat-conducting sleeve 20 and the first mounting opening 13 to achieve a sealed connection therebetween.

In the embodiment, in order to firmly and reliably fix and mount the heat conducting sleeve 20 on the inner container 10, the inner container 10 is provided with a first flange 41, and the first flange 41 is arranged outside the first mounting opening 13; the heat conductive sleeve 20 is provided with a second flange which is arranged outside the second mounting opening 21.

In this embodiment, as shown in fig. 3, the connecting member further includes a plurality of bolts and a plurality of nuts. The annular plane inner ring of the first flange 41 is turned inwards, the annular plane outer ring is turned outwards, and an annular structure formed by the annular plane inner ring of the first flange 41 which is turned inwards is welded with the first mounting port 13. In order to mount the bolts connecting the first flange 41 and the second flange, a plurality of first mounting through holes 411 are formed in the first flange 41, each first mounting through hole 411 includes a first end and a second end, and the width of the first end is greater than that of the second end. And a second mounting through hole is formed in the second flange plate, and the position of the second mounting through hole corresponds to the position of the first mounting through hole. The bolt head passes through the first end of the first mounting through hole 411 and is mounted at the second end of the first mounting through hole 411, the bolt screw passes through the second end of the first mounting through hole 411 and the second mounting through hole of the second flange plate, the nut is connected with the bolt screw, and the second flange plate is connected with the first flange plate 41, so that the heat conduction sleeve 20 is connected with the inner container 10.

In this embodiment, the second mounting through hole may be designed to have the same structure as the first mounting through hole 411, or may be simply designed to be a circular hole, and both schemes may ensure the connection function and simultaneously achieve the quick-release function of the first flange 41 relative to the second flange.

In the present embodiment, the sealing connection between the heat conducting sleeve 20 and the first mounting opening 13 can be realized by providing a second sealing member between the first flange 41 and the second flange, for example: the second seal is a gasket sandwiched between the first flange 41 and the second flange.

In the present embodiment, as shown in fig. 5 and 6, in order to obtain a good heat transfer effect between the heat conductive sleeve 20 and the electric heating member 30 and to improve the heating efficiency, a heat conductive portion 50 is further provided between the electric heating member 30 and the heat conductive sleeve 20.

Specifically, after the electric heating element 30 is placed in the heat conductive sleeve 20 as shown in fig. 5 and 6, due to the structural limitation of the electric heating element 30, the electric heating element 30 cannot be tightly attached to the inner wall of the heat conductive sleeve 20, and thus a gap exists between the two. And the heat conductivity coefficient of air is low, so that the heat conduction is influenced. For this purpose, a heat conductive portion 50 is further provided between the electric heating member 30 and the heat conductive jacket 20. The heat conduction part 50 has good heat conduction performance, and the heat generated by the electric heating part 30 can be quickly transferred to the heat conduction sleeve 20 through the heat conduction part 50, so that the heat conduction sleeve 20 can quickly and efficiently heat the water stored in the inner container 10.

However, in the actual process, the concrete entity of the heat conductive portion 50 may take various forms. For example: as shown in fig. 5 and 6, the heat conductive portion is a heat conductive block 51, and the heat conductive block 51 is provided with a recess in which the electric heating member 30 is disposed. Specifically, the electric heating unit 30 may be an electric heating plate or an electric heating tube, for example. The heat conducting block 51 is made of a material with high heat conductivity such as aluminum or copper, and the electric heating tube is disposed in the groove of the heat conducting block 51, and then the heat conducting block 51 is inserted into the heat conducting sleeve 20 in a tight fit manner, so that the heat conducting block 51 is in tight contact with the inner wall of the heat conducting sleeve 20. Wherein, the groove and the outer wall of the heat conducting block 51 can be coated with heat conducting glue to improve the heat conducting performance.

Alternatively, as shown in fig. 5 and 6, the electric heating member 30 is hermetically disposed in the heat conductive sleeve 20, the heat conductive sleeve 20 is further filled with heat conductive oil 52, and the heat conductive oil 52 is a heat conductive portion.

In particular, for the electric heating element 30, the whole is hermetically arranged in the heat-conducting sleeve 20, for example: a sealing end cap may be disposed on the heat conducting sleeve 20, and the second mounting opening 21 is sealed and shielded by the sealing end cap, so that a sealed cavity is formed between the heat conducting sleeve 20 and the sealing end cap, and the cavity is filled with the heat conducting oil 42. When the electric heating member 30 is powered on to generate heat, the heat generated by the electric heating member 30 is rapidly transferred to the heat conducting sleeve 20 through the heat conducting oil 42, and then the water in the inner container 10 is heated through the heat conducting sleeve 20.

The above examples are only intended to illustrate the technical solution of the present invention, but 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 may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An electric water heater, comprising:

the inner container comprises a first half container and a second half container; the first half liner is of an integrated structure formed by stretching, and one end of the first half liner is provided with a first mounting opening; the second half liner is of an integrated structure formed by stretching, and is connected with the first half liner;

an electric heating member for generating heat by energization;

the connecting component comprises a first flange plate, and the first flange plate is arranged outside the first mounting opening;

the electric heating part is arranged in the inner container, and the outer end part of the electric heating part is installed on the first flange plate.

2. The electric water heater according to claim 1, wherein the inner ring of the annular plane of the first flange is turned inward, the outer ring of the annular plane of the first flange is turned outward, and the annular plane of the first flange is provided with a plurality of first mounting through holes.

3. The electric water heater of claim 2, wherein the first mounting through-hole includes a first end and a second end, the first end having a width greater than a width of the second end.

4. The electric water heater of claim 2, further comprising:

one end of the heat conduction sleeve is provided with a second mounting opening, and the heat conduction sleeve passes through the first mounting opening and is mounted in the inner container; the electric heating part penetrates through the second mounting hole and is mounted in the heat conduction sleeve, and the electric heating part is connected with the heat conduction sleeve in a sealing mode.

5. The electric water heater of claim 4, wherein the connecting member further comprises:

and the second flange plate is provided with a plurality of second mounting through holes, the positions of the second mounting through holes correspond to those of the first mounting through holes, and the second flange plate is mounted outside the second mounting hole.

6. The electric water heater of claim 5, wherein the connecting member further comprises:

the head of the bolt penetrates through the first end of the first mounting through hole, the head of the bolt is mounted at the second end of the first mounting through hole, the screw rod of the bolt penetrates through the second end of the first mounting through hole and the second mounting through hole, and the nut is connected with the screw rod of the bolt.

7. The electric water heater of claim 5, wherein the connecting member further comprises:

a first seal disposed between the first flange and the second flange;

and/or said connecting means may further comprise,

a second seal disposed between the heat conductive sleeve and the inner bladder.

8. The electric water heater of claim 1, wherein the longitudinal section of the inner container is oval.

9. The electric water heater of claim 4,

the bottom of the inner container is provided with a water inlet, a water outlet and a sewage outlet;

and/or a protective layer is arranged on the outer surface of the heat conduction sleeve.

10. The electric water heater according to any one of claims 4, 5, 6, 7, 9, further comprising: and a heat conductive part filled in a sealed space formed between the heat conductive jacket and the electric heating part.