CN220707718U - Anticorrosion device for electric water heater and electric water heater - Google Patents

Abstract

The utility model discloses an anti-corrosion device for an electric water heater and the electric water heater, which comprise an electronic anode module and a battery module, wherein the electronic anode module comprises an electronic anode body, and the electronic anode body is used for extending into an inner container; the anode of the battery module is electrically connected with the electronic anode body, and the cathode of the battery module is electrically connected with the liner; and under the state that the water in the inner container is contacted with the electronic anode body, the current released by the battery module is conducted to the inner container through the electronic anode body and the water. The utility model develops an anti-corrosion device for an electric water heater and the electric water heater, which can still play a role in corrosion prevention of an inner container of the electric water heater in a power-off state, and meanwhile, scale is not easy to generate.

Description

Anticorrosion device for electric water heater and electric water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to an anti-corrosion device for an electric water heater and the 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, heat pump water heaters, solar water heaters and the like. The electric water heater is widely used because of its convenient use.

The corrosion resistance of the sheet metal liner of the current water heater is mainly divided into two main types, namely the conventional magnesium rod corrosion resistance and the corrosion resistance through an electronic anode. The magnesium rod corrosion prevention principle is a cathode protection method of a sacrificial anode, the magnesium rod used as the anode is gradually consumed in the use process and needs to be replaced regularly, and the existence of the magnesium rod can influence the water quality to generate more scale; the principle of the electronic anode corrosion prevention is a cathode protection method of an external power supply, wherein the electronic anode is made of inert metal, only plays a role in transferring electrons and cannot be gradually consumed, and after the water heater is electrified, the commercial power is connected to the electronic anode and then conducts the electrons to the surface of a metal plate liner of the cathode, so that the electronic anode is prevented from being corroded. The corrosion prevention of the electronic anode has two problems, namely, the electronic anode cannot work in a power-off state, and the sheet metal liner cannot be prevented from being corroded; the second is that the electron anode is connected with the mains supply, 220V voltage is required to supply power to the electron anode through voltage conversion, once the voltage conversion is damaged, electric leakage is caused, and under the continuous mains supply voltage, the reaction of electrolyzed water can occur to generate more hydrogen and oxygen, wherein the increase of the oxygen concentration can accelerate the corrosion of the inner container, the hydrogen belongs to inflammable and explosive gas, explosion risks exist, and the hydrogen can cause a hydrogen embrittlement phenomenon, so that the mechanical strength of the inner container is reduced, and the water leakage probability of the inner container is greatly improved.

Therefore, the research and development of the anti-corrosion device for the electric water heater and the electric water heater can still play a role in corrosion prevention of the inner container of the electric water heater in the power-off state, and meanwhile, scale is not easy to generate, so that the anti-corrosion device for the electric water heater is a technical problem to be solved urgently.

Disclosure of Invention

Aiming at the problems that the corrosion prevention mode of the liner of the electric water heater commonly used in the prior art has more scale generated by magnesium rod corrosion prevention, the electronic anode corrosion prevention adopting the mains supply cannot provide corrosion prevention when power is off, electricity leakage, water electrolysis and the like exist, the utility model provides a corrosion prevention device for the electric water heater and the electric water heater for solving the problems.

In order to achieve the above-mentioned utility model/design purpose, the utility model adopts the following technical scheme to realize:

an anti-corrosion device for an electric water heater comprises an electronic anode module and a battery module, wherein the electronic anode module comprises an electronic anode body, and the electronic anode body is used for extending into an inner container; the anode of the battery module is electrically connected with the electronic anode body, and the cathode of the battery module is electrically connected with the liner; and under the state that the water in the inner container is contacted with the electronic anode body, the current released by the battery module is conducted to the inner container through the electronic anode body and the water.

In some embodiments of the present application, the electron anode module further includes an electron anode mounting assembly, and the electron anode body is connected to the inner container in an insulating manner through the electron anode mounting member. The electronic anode body is arranged on the liner through the electronic anode mounting component, insulation between the electronic anode body and the liner is realized, and the negative electrode of the battery module is electrically connected with the liner, so that short circuit of the battery module can be avoided.

In some embodiments of the present application, the electron anode mounting assembly includes a connecting member and an insulating member, the insulating member is disposed around an end of the electron anode body, the connecting member is disposed around the insulating member, and the connecting member is configured to be detachably connected with the inner container. The insulating part is arranged between the electron anode body and the connecting part in a surrounding way, so that the insulation between the connecting part and the electron anode body is realized, and the insulation between the liner and the electron anode is realized.

In some embodiments of the present application, the electron anode mounting assembly further includes a connection member electrically connected with the electron anode body, the connection member being connected with the connection member in an insulating manner. The positive pole of battery module passes through wiring part and electron positive pole body electricity to pass through wiring part and connecting piece insulation connection to prevent that wiring part and inner bag from circular telegram from causing the short circuit.

In some embodiments of the present application, the insulating member is disposed around the wiring member.

In some embodiments of the present application, the electronic anode mounting assembly further includes a limiting member connected to an end of the connecting member for limiting a limit position of the electronic anode body extending into the inner container. The limiting component is used for limiting the limiting position of the connection of the connecting component and the liner.

On the other hand, the application also provides an electric water heater, which comprises the anti-corrosion device for the electric water heater, and further comprises an inner container, wherein the inner container comprises an inner container body and a flange, an inner container opening is formed at the end part of the inner container body, and the flange is in sealing connection with the inner container opening; the flange plate is provided with a first connecting hole, the electronic anode body stretches into the liner body from the first connecting hole, and the end part of the electronic anode body is connected with the first connecting hole.

In some embodiments of the present application, the connecting member has an external threaded portion formed thereon; an internal thread part is formed in the first connecting hole; the connecting member is screwed with the first connecting hole through the male screw portion and the female screw portion.

In some embodiments of the present application, further comprising a housing, the battery module being mounted between the housing and the liner; or, the battery module is mounted outside the case. The battery module is arranged between the shell and the liner, so that the space of a user can be saved; the battery is arranged outside the shell, so that the battery can be conveniently replaced by a user.

In some embodiments of the present application, a first positioning hole is formed in the flange, and the negative electrode is connected with the first positioning hole through a fastener; and/or, the battery module is an air battery. The air battery has low voltage and low current, and can avoid the leakage risk and the problem of water electrolysis.

Compared with the prior art, the utility model has the advantages and positive effects that:

the electronic anode module is arranged on the inner container, and the electronic anode body extends into the inner container; the anode of the battery module is electrically connected with the electronic anode body, the cathode of the battery module is electrically connected with the liner, and under the state that water in the liner contacts with the electronic anode body, the current released by the battery module is transmitted to the liner through the electronic anode body and the liner, so that the electronic anode is corrosion-resistant; by arranging the battery module to replace the mains supply, low voltage and low current are provided, so that the risk of electric leakage of the electric water heater and the occurrence of electrolyzed water are reduced, and meanwhile, even if the mains supply is powered off, the electronic anode body performs an anti-corrosion function.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of an embodiment of an anti-corrosion device for an electric water heater and an electric water heater according to the present utility model;

FIG. 2 is a partial schematic view at B in FIG. 1;

FIG. 3 is a cross-sectional view at A-A in FIG. 1;

FIG. 4 is a partial schematic view at C in FIG. 3;

fig. 5 is a schematic structural diagram of an electric water heater according to the present utility model;

FIG. 6 is a partial schematic view at D in FIG. 5;

fig. 7 is a schematic diagram of another structure of an electric water heater according to the present utility model;

FIG. 8 is a partial schematic view of F in FIG. 7;

FIG. 9 is a cross-sectional view taken at E-E of FIG. 7;

FIG. 10 is a partial schematic view at G in FIG. 9;

fig. 11 is a schematic diagram of the overall structure of an electric water heater according to the present utility model;

in the drawing the view of the figure,

100, an inner container;

110, a liner body;

120, a flange plate;

130, a liner port connector;

140, positioning pieces;

200, a housing;

300, a battery module;

400, an electron anode module;

410, an electron anode body;

420, an electron anode mounting assembly;

421, a connection member;

422, an insulating member;

423, a wiring member;

424, a limiting component;

425, a support member;

510, a first wire;

511, a first wire connection portion;

520, a second wire;

521, a second wire connection portion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

In the description of the present utility model, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In the description of the embodiments, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

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 or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The water heater is a household appliance commonly used in daily life of people, and is widely used because of convenient use.

The working principle of the electric water heater is as follows:

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.

In this embodiment, as shown in fig. 11 and 5, the electric water heater includes a liner 100 and a housing 200.

In order to prevent the liner 100 from being corroded gradually during the use of the electric water heater, the service life of the electric water heater is often affected, and the commercial power is often utilized to perform corrosion prevention by adopting an electronic anode corrosion prevention principle.

However, since the voltage of the commercial power is high, there is a risk of electric leakage, and there is a greater possibility that the electrolytic water reaction occurs, further increasing the safety risk.

Therefore, in the present embodiment, the battery module 300 is used to supply power instead of the commercial power, thereby reducing the voltage to within the safe voltage range, fundamentally avoiding the possibility of electric shock and reducing the possibility of the electrolytic water reaction.

In this embodiment, as shown in fig. 5, 6, 7, 8, 9, and 10, the corrosion prevention device for electric water heater includes an electronic anode module 400 in addition to a battery module 300.

The electron anode module 400 includes an electron anode body 410.

The electron anode body 410 extends into the inner container 100.

The positive electrode of the battery module 400 is electrically connected to the electron anode body 410.

The negative electrode of the battery module 400 is electrically connected to the inner container 100.

When the electric water heater is installed, water is contained in the inner container 100. The water in the inner container 100 contacts the electron anode body 410 positioned in the inner container 100. So that the current discharged from the battery module 400 is conducted to the inner container 100 through the electron anode body 410 and water.

In this embodiment, in order to prevent the battery module 300 from being shorted, the electron anode body 410 needs to be connected with the inner container 100 in an insulating manner.

In this embodiment, as shown in fig. 1, 2, 3 and 4, the electron anode module 400 further includes an electron anode mounting assembly 420, and the electron anode body 410 is mounted on the inner container 100 through the electron anode mounting assembly 420 and is in insulated connection.

The motor anode mounting assembly 420 includes a connection member 421 and an insulation member 422. The insulating member 422 is disposed around the electron anode body 410, and the connection member 421 is disposed around the insulating member 422, thereby achieving insulation between the electron anode body 410 and the connection member 421.

The connection member 421 is connected to the inner container 100, and allows the electron anode module 400 to be mounted to the inner container 100.

Since the insulating member 422 is connected between the electron anode body 410 and the connection member 421, the insulating member 422 can realize the insulating connection between the electron anode body 410 and the inner container 100.

In the present embodiment, the liner 100 includes a liner body 110 and a flange 120. The end of the liner body 110 is formed with a liner opening, the flange 120 is connected to the liner opening, and the flange 120 can seal the liner body 110.

Specifically, the electron anode module 400 is connected to the flange 120, and the electron anode module 400 extends into the liner body 110 through the flange 120.

The flange 120 is provided with a first connecting hole, and the electron anode body 410 extends into the liner body 110 through the first connecting hole. The end of the electron anode body 410 is connected to the first connection hole.

Specifically, an internal thread portion is formed in the first connection hole.

The coupling member 421 has an external screw portion formed thereon.

The connection member 421 is screwed to the flange 120 by the female screw portion and the male screw portion.

In this embodiment, the electron anode mounting assembly 420 further includes a wiring member 423.

The wiring member 423 is electrically connected to the electron anode body 410.

In order to insulate the wire member 423 from the liner 100, the insulating member 422 is also provided around the wire member 423.

The positive electrode of the battery module 300 is electrically connected to the electron anode body 410 through the connection member 423 to achieve electrical conduction.

In this embodiment, the electron anode mounting assembly 420 further includes a spacing member 424. The limiting member 424 is coupled to one end of the coupling member 421.

In the process of installing the connecting member 421 on the flange 120, the limiting member 424 gradually approaches the flange 120, and when the limiting member 424 abuts against the flange 120, the connecting member 421 is installed at the correct position.

Specifically, an insulating pad is further connected between the limiting member 424 and the flange 120.

In the present embodiment, the positive electrode of the battery module 300 is connected to the wiring member 423 through the first wire 510.

Specifically, the end portion of the first wire 510 is formed with a first wire connection portion 511. The first wire connection part 511 is sleeved outside the connection part 423 and is fixed by a nut.

In this embodiment, the electron anode mounting assembly 420 further includes a support member 425.

The supporting member 425 is connected to a side end of the connection member 423 remote from the flange 120.

When the first wire connecting portion 511 is mounted on the connecting member 423, the first wire connecting portion 511 abuts against the supporting member 425, and the nut is screwed, thereby achieving the mounting of the first wire connecting portion 511 with respect to the connecting member 423.

In particular, the support members 425 may be designed to have the same cross-section as a hex nut to facilitate installation of the electron anode body 410 using a wrench.

In the present embodiment, the negative electrode of the battery module 300 is connected to the inner container 100. Specifically, the negative electrode of the battery module 300 is electrically connected to the flange 120, thereby electrically connecting to the liner body 110.

In this embodiment, a plurality of first positioning holes 121 are formed in the flange 120 in a scattered manner.

The liner 100 further includes a liner port connector 130, the liner port connector 130 being disposed around the liner port.

The liner port connector 130 is coaxially disposed with the liner port.

A plurality of second positioning holes are formed in the liner opening connecting member 130 in a scattered manner.

The first positioning holes 121 and the second positioning holes are located in a one-to-one correspondence.

The positioning piece 140 sequentially passes through the first positioning hole 121 and the second positioning hole to realize positioning connection of the flange 120 and the liner opening connecting piece 130.

In this embodiment, the negative electrode of the battery module 300 is connected to the liner 100 by being connected to the positioning member 140.

In the present embodiment, the battery module 300 is electrically connected to the positioning member 140 through the second conductive wire 520.

Specifically, the end of the second wire 520 is formed with a second wire connection part 521. The second wire connection portion 521 is electrically connected to the flange 120 through the positioning member 140.

Specifically, the positioning element 140 includes a nut and a stud, the second wire connecting portion 521 is sleeved outside the stud, and the nut is tightly pressed on the second wire connecting portion 521 and screwed outside the stud. The electrical connection of the second wire connection 521 and the positioning member 140 is achieved.

Thereby achieving electrical connection of the negative electrode of the battery module 300 with the inner container 100.

In the present embodiment, the battery module 300 may be disposed between the outer case 200 and the inner case 100. The battery module 300 may also be disposed outside the case 200.

In particular, the battery module 300 may employ an air battery. The air battery has the characteristics of low voltage and small current, and is used as a power source of the electronic anode module 400 instead of the conventional commercial power in the prior art. The air battery has lower voltage relative to the commercial power, can effectively weaken the electrolytic water reaction of the electronic anode, and prevents the danger caused by generating more oxygen and hydrogen.

Meanwhile, the air battery can continuously supply power to the electronic anode module 400, so that the problem that the electronic anode module 400 cannot work and the liner is corroded due to the fact that the commercial power cannot supply power under the power-off state is solved.

In addition, because the voltage of the air battery is low, the risk of electric leakage or electric shock does not exist.

In the present embodiment, the battery module 300 may be disposed in an electrical room. In this case, if the battery module 300 needs to be replaced, a professional is required to replace it.

In other embodiments, the battery module 300 may be placed outside the housing. The outer casing is provided, so that convenience in replacement of the battery module 300 is improved, and a user can replace the battery module by himself.

Specifically, the electric water heater also comprises a display panel. The battery module 300 may be disposed at the rear side of the display panel. Or at an arcuate region of the top of the housing 200.

In this embodiment, the anticorrosion apparatus for an electric water heater is not only used in a water heater including one liner 100, but also a plurality of liners 100 may be used.

Specifically, the number of the inner containers 100 is two.

An electron anode body 410 is installed in both the inner containers 100. The anode body 410 is mounted on the inner container 100 by an anode mounting assembly 420.

In order to supply power to the two inner containers 100 at the same time, the battery module 300 is connected to the electron anode bodies 410 installed in the two inner containers 100 through the two first lead wires 510, respectively.

Are electrically connected with the two inner containers 100 through the two second wires 520 respectively,

thereby realizing the common use of one battery module 300 for the anti-corrosion protection of the plurality of inner containers 100.

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 (10)

1. An anti-corrosion device for an electric water heater, comprising:

the electronic anode module comprises an electronic anode body, wherein the electronic anode body is used for extending into the liner;

the anode of the battery module is electrically connected with the electronic anode body, and the cathode of the battery module is electrically connected with the liner;

and under the state that the water in the inner container is contacted with the electronic anode body, the current released by the battery module is conducted to the inner container through the electronic anode body and the water.

2. The corrosion protection device for an electric water heater according to claim 1, wherein the electronic anode module further comprises an electronic anode mounting assembly, and the electronic anode body is connected to the inner container in an insulating manner by the electronic anode mounting assembly.

3. The corrosion protection device for electric water heater according to claim 2, wherein,

the electronic anode mounting assembly comprises a connecting part and an insulating part, wherein the insulating part surrounds the end part of the electronic anode body, the connecting part surrounds the insulating part, and the connecting part is used for being detachably connected with the inner container.

4. The corrosion protection device for electric water heater according to claim 3, wherein,

the electronic anode mounting assembly further comprises a wiring component, wherein the wiring component is electrically connected with the electronic anode body, and the wiring component is in insulating connection with the connecting component.

5. The corrosion protection device for electric water heater according to claim 4, wherein,

the insulating member is disposed around the wiring member.

6. The corrosion protection device for electric water heater according to claim 3, wherein,

the electronic anode mounting assembly further comprises a limiting part, and the limiting part is connected to the end part of the connecting part and used for limiting the limiting position of the electronic anode body extending into the liner.

7. An electric water heater, comprising:

an anti-corrosion device for an electric water heater according to any one of claims 1 to 6;

the liner comprises a liner body and a flange plate, wherein a liner opening is formed at the end part of the liner body, and the flange plate is in sealing connection with the liner opening; the flange plate is provided with a first connecting hole, the electronic anode body stretches into the liner body from the first connecting hole, and the end part of the electronic anode body is connected with the first connecting hole.

8. The electric water heater of claim 7, wherein the electric water heater comprises a water heater,

an external thread part is formed on the connecting part;

an internal thread part is formed in the first connecting hole;

the connecting member is screwed with the first connecting hole through the male screw portion and the female screw portion.

9. The electric water heater of claim 7, further comprising a housing, the battery module being mounted between the housing and the liner;

or, the battery module is mounted outside the case.

10. The electric water heater according to claim 7, wherein the flange plate is provided with a first positioning hole, and the negative electrode is connected with the first positioning hole through a fastener;

and/or, the battery module is an air battery.