CN216868809U

CN216868809U - Water storage type water heater

Info

Publication number: CN216868809U
Application number: CN202220513615.4U
Authority: CN
Inventors: 邱步; 杨国斌; 姚振虎; 李水清
Original assignee: AO Smith China Water Heater Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-01
Anticipated expiration: 2032-03-09

Abstract

The utility model discloses a water storage type water heater, which comprises: the inner container is used for storing water; the heating device is used for heating the water in the inner container; the first anode device is insulated from the liner and is electrically connected with the liner through a first connecting circuit; a detection unit connected to the first connection circuit or the first anode device or the inner container; and the second anode device is a physical anode and is connected to the inner container. The water storage type water heater can monitor the working condition of the physical anode by at least one anode device, thereby reliably protecting the inner container.

Description

Water storage type water heater

Technical Field

The utility model relates to the field of water heaters, in particular to a water storage type water heater.

Background

The water heater is one of the essential domestic appliances at home in modern times, and mainly provides domestic hot water for people such as showers and the like, thereby bringing great convenience to the life of people. The existing water heater mainly includes: gas water heaters, solar water heaters, and water storage water heaters. The water storage type water heater mainly comprises an electric water heater which takes electricity as energy source for heating. An electric water heater generally includes a housing, an inner container disposed in the housing, and an electric heating device disposed in the inner container, and the electric heating device heats water in the inner container by electrifying the electric heating device.

The inner container for storing water is a key part of the electric water heater. Once the inner container leaks water, the electric water heater is scrapped. The reason for the water leakage of the inner container is that the steel plate for manufacturing the inner container is corroded to form micropores. In order to ensure the service life of the liner, manufacturers either adopt expensive stainless steel plates to manufacture the liner or use common steel plates to carry out enamel coating treatment. Even then, corrosion of the inner container is inevitable.

For example, for a stainless steel liner, the corrosion resistance changes with changing environmental conditions. The corrosion resistance of stainless steel is passivated by chromium in sufficient quantity to form a thin and compact passive film with good adhesion. In hot water conditions (70 ℃ to 80 ℃), the passive film of stainless steel is broken and activated by halogen element ions such as chloride ions in water, and stress corrosion cracks are generated. The portion of the passivation film damaged becomes an anode and the periphery becomes a cathode, and pitting corrosion will occur in the anode portion. In addition, the influence of processing and welding stress exists, and water leakage at the welding seam part is easy to cause.

In the case of an enamel liner, although the enamel coating appears to be dense and smooth, fine bubbles are present at the bottom and are interconnected. The scale-like oxide skin and micropores which are common on the surface of the hot-rolled steel plate affect the tight combination of the coating and the steel plate and can be a place for storing dirt and holding dirt. The enamel liner can not avoid being collided to generate larger or smaller cracks in the processes of sintering, carrying, assembling and the like, and the enamel layer can also generate cracks due to the different linear expansion coefficients of the enamel coating and the steel. These cracks will increase and propagate during alternating cold and hot cycles. At this time, water molecules having no pores and not entering the surface of the steel sheet enter, and the steel sheet is corroded.

In order to prevent the inner container from leaking water due to corrosion in the long-term use process, an anode rod is usually installed in the inner container to protect the inner container from corrosion. When the anode bar comprises the physical anode, the more active metal is connected with the inner container according to the working principle of the physical anode, so that a primary battery is formed in water, and electrochemical corrosion is generated. In the process, the metal of the physical anode replaces the inner container to be corroded and consumed, so that the inner container is protected. In the working process of the physical anode, the working condition of the physical anode needs to be monitored, so that the inner container is reliably protected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water storage type water heater, which can monitor the working condition of a physical anode by using at least one anode device so as to reliably protect an inner container.

The above object of the present invention can be achieved by the following technical solutions:

a storage-type water heater comprising: the inner container is used for storing water; the heating device is used for heating the water in the inner container; the first anode device is insulated from the inner container and is electrically connected with the inner container through a first connecting circuit; a detection unit connected to the first connection circuit or the first anode device or the inner container; and the second anode device is a physical anode and is connected to the inner container.

Further, the water storage type water heater further comprises a controller electrically connected with the detection unit, the detection unit is used for acquiring a first electrical parameter of the first anode device, and the controller can acquire a second electrical parameter of the second anode device based on the acquired first electrical parameter.

Furthermore, the inner container comprises a first inner container and a second inner container which are communicated with each other, the first anode device is arranged in the first inner container, and the second anode device is arranged in the second inner container.

Further, the first anode device comprises any one or combination of the following: an electronic anode, a physical anode.

Further, the first anode device comprises a physical anode, and the detection unit is arranged on the first connection circuit.

Furthermore, the first anode device comprises an electronic anode, the water storage type water heater further comprises a power supply device, and the power supply device and the detection unit are arranged on the first connecting circuit.

Further, the water storage type water heater also comprises a resistor connected with the first anode device in series.

Furthermore, a first switch is arranged on the first connecting circuit, a second connecting circuit connected with the first connecting circuit in parallel is further arranged on the water storage type water heater, a second switch is arranged on the second connecting circuit, and the resistor is arranged in the first connecting circuit.

Further, the detection unit is a voltage detection unit, the voltage detection unit is configured to obtain a voltage of the resistor, the controller is configured to determine a current flowing through the first anode device based on the voltage, or the detection unit is a current detection unit, the current detection unit is configured to obtain the current flowing through the first anode device, or the detection unit is an electric quantity detection unit, the electric quantity detection unit is configured to obtain an electric quantity flowing through the first anode device within a predetermined time period, and the controller is configured to determine the current flowing through the first anode device based on the electric quantity and the predetermined time period.

Furthermore, the extending direction of the first anode device is consistent with the extending direction of the first inner container, one end of the second anode device extends into the inner container along the height direction, and the other end of the second anode device is fixed at the bottom of the second inner container.

Furthermore, the first inner container and the second inner container are arranged up and down along the height direction, and the first inner container is positioned above the second inner container.

Further, the second anode device is installed on the second inner container.

Furthermore, the water storage type water heater also comprises an alarm unit electrically connected with the controller.

Further, when the first anode device includes a physical anode, the alarm unit includes: the device comprises a first alarm unit for alarming the service life of a first anode device and a second alarm unit for alarming the service life of a second anode device.

Furthermore, one end of the first anode device is positioned outside the first inner container and detachably connected to the first inner container through a connecting mechanism, and an insulating part is arranged between the connecting mechanism and the first inner container.

Furthermore, the first inner container is a horizontal inner container extending along a first direction, a first end cover and a second end cover which are opposite to each other are arranged along the first direction, the first end cover is used for installing the first anode device, one end of the connecting circuit is connected with one end of the first anode device, and the other end of the connecting circuit is connected to the first end cover.

Further, the water storage type water heater further comprises: the temperature control device comprises a first temperature detection piece and a second temperature detection piece, wherein the first temperature detection piece is used for acquiring the water temperature in the first inner container, the second temperature detection piece is used for acquiring the water temperature in the second inner container, and the first temperature detection piece and the second temperature detection piece are electrically connected with the controller.

The utility model has the characteristics and advantages that:

in an embodiment of the utility model, a water storage type water heater is provided, wherein a first electrical parameter of one of first anode devices is obtained by using a detection unit, and after the first electrical parameter is obtained by using the detection unit, a consumption condition of a second anode device currently serving as a physical anode can be reflected according to the first electrical parameter. The service life of the current physical anode can be determined according to the consumption condition of the physical anode subsequently, so that a user can be reminded to replace the physical anode in time, and the inner container can be protected reliably all the time.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

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

Fig. 1 is a schematic structural diagram of a first storage water heater provided in an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a second water storage type water heater provided in the embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a third storage water heater provided in the embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a fourth storage water heater provided in the embodiment of the utility model.

Fig. 5 is a schematic structural diagram of a fifth storage water heater provided in the embodiment of the utility model.

Fig. 6 is a schematic structural diagram of a sixth storage water heater provided in the embodiment of the utility model.

Fig. 7 is a schematic structural diagram of a seventh storage water heater according to the embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an eighth storage water heater according to the embodiment of the present invention.

Description of reference numerals:

1. an inner container;

11. a first inner container;

12. a second inner container;

2. a heating device;

3. a detection unit;

4. a first anode means;

5. a second anode means;

61. a first connection circuit;

62. a first switch;

63. a second connection circuit;

64. a second switch;

65. a resistance;

71. a water inlet pipe;

72. a water outlet pipe;

8. and a power supply device.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a first water storage type water heater provided in an embodiment of the present invention, in which the water storage type water heater may include an inner container 1, and two physical anodes are disposed at different positions of the inner container 1; fig. 2 is a schematic structural diagram of a second water storage type water heater provided in an embodiment of the present invention, in which the water storage type water heater may include an inner container 1, and two physical anodes and an electronic anode are disposed at different positions of the inner container 1; fig. 3 is a schematic structural diagram of a third storage type water heater provided in an embodiment of the present invention, in which the storage type water heater may include a liner 1, and a physical anode and an electronic anode are disposed at different positions of the liner 1; fig. 4 is a schematic structural diagram of a fourth water storage type water heater provided in an embodiment of the present invention, in which the water storage type water heater may include two liners, and each liner is provided with a physical anode; fig. 5 is a schematic structural diagram of a fifth storage water heater according to an embodiment of the present invention, which is different from the storage water heater shown in fig. 4 mainly in an external connection circuit. Fig. 6 is a schematic structural diagram of a sixth storage water heater provided in an embodiment of the present invention, which is different from the storage water heater shown in fig. 4 mainly in an external connection circuit. Fig. 7 is a schematic structural diagram of a seventh water storage type water heater according to an embodiment of the present invention, which is different from the water storage type water heater shown in fig. 4 mainly in an external connection circuit. Fig. 8 is a schematic structural diagram of an eighth water storage type water heater provided in an embodiment of the present invention, in which the water storage type water heater may include two liners, one liner is provided with at least one electronic anode, and the other liner is provided with a physical anode.

In general, embodiments of the present specification provide a storage water heater, which may include: the inner container is used for storing water; the heating device 2 is used for heating the water in the inner container; the first anode device 4 is installed with the liner in an insulated mode, and the first anode device 4 is electrically connected with the liner through a first connecting circuit 61; a detection unit 3 connected to the first connection circuit 61 or the first anode device 4 or the inner container; and the second anode device 5 is a physical anode and is connected to the inner container.

In the embodiments of the present specification, the storage water heater is mainly exemplified by an electric water heater.

This water storage formula water heater mainly includes: the device comprises an inner container, a heating device 2, a first anode device 4, a second anode device 5 and a detection unit 3.

Wherein, this inner bag can set up in the casing of water heater for the water storage. The liner can be an enamel liner or a stainless steel liner. The water heater can comprise one inner container as shown in figures 1, 2 and 3, or at least two inner containers as shown in figures 4, 5, 6, 7 and 8.

As shown in fig. 1, 2 and 3, when the water heater includes an inner container 1, the inner container 1 may be a horizontal inner container, that is, after the water heater is installed in place, the overall extending direction of the inner container 1 is set along the horizontal direction; or, the inner container 1 can also be a vertical inner container, that is, after the water heater is installed in place, the whole extending direction of the inner container 1 is arranged along the vertical direction.

As shown in fig. 4, 5, 6, 7 and 8, when the water heater includes two inner containers, a first inner container 11 and a second inner container 12 are respectively communicated with each other, and the first inner container 11 and the second inner container 12 may be horizontal inner containers; alternatively, the first and second

inner containers

11 and 12 may be vertical inner containers. Taking the first liner 11 and the second liner 12 as horizontal liners, the first liner 11 and the second liner 12 may be arranged up and down along the height direction, wherein the first liner 11 may be on the top, and the second liner 12 may be on the bottom. Of course, the relative positional relationship between the first inner bag 11 and the second inner bag 12 is not limited to the above example, and in the embodiment of the present specification, the first inner bag 11 and the second inner bag 12 are mainly disposed vertically, and an example will be described.

Referring to any one of fig. 1 to 8, the water heater is further provided with a water inlet pipe 71 and a water outlet pipe 72. Wherein, the water inlet pipe 71 and the water outlet pipe 72 can be both arranged on the inner container. The water inlet pipe 71 is provided with a water inlet port which is provided near the bottom of the inner container for supplying water to be heated to the bottom of the inner container. The water outlet pipe 72 is provided with a water outlet which is arranged near the top of the inner container and used for outputting the heated water from the top of the inner container to the outside.

Referring to any one of fig. 4 to 8, when the inner container includes the first inner container 11 and the second inner container 12, and the first inner container 11 and the second inner container 12 are disposed vertically, the water outlet pipe 72 passes through the communicating portion between the first inner container 11 and the second inner container 12, the water outlet thereof is located near the top of the first inner container 11, the water inlet pipe 71 is located in the second inner container 12, and the water inlet thereof is disposed near the bottom of the second inner container 12.

The heating device 2 may in particular be an electrical heating element (e.g. an electrical heating rod) for converting electrical energy into thermal energy. The electric heating element is contacted with the water in the inner container, and the water in the inner container can be heated after the heat energy generated by the electric heating element is transferred to the water in the inner container. One end of the electric heating element is fixed on the inner container, and the other end of the electric heating element extends into the water in the inner container. The number of the electric heating elements may be 1, 2, or more, specifically, the number of the electric heating rods may be different according to performance parameters (e.g., power, volume, etc.) of the water storage type water heater and power parameters of the electric heating rods themselves, and the application is not limited in particular.

The second anode means 5 may be a physical anode means (e.g. magnesium rod, etc.) which is directly attached to the liner as a sacrificial anode. When in use, the inner container is contacted with water in the inner container, so that a primary battery is formed in the water to replace the corrosion of the inner container, and the inner container is protected. Taking a magnesium rod as an example, when electrochemical corrosion occurs, active metal magnesium in the magnesium rod loses electrons, so that current is formed in water in the inner container.

Specifically, the number of the second anode devices 5 as physical anodes may be one, two, or even more. Specifically, the number of the second anode devices 5 may be different according to the parameters such as the size and the performance thereof, the service life of the water heater, and the like, and the application is not limited specifically herein.

The first anode device 4 is insulated from the inner container and electrically connected to the inner container through a first connecting circuit 61 to form a connecting loop. Specifically, the connection loop may include: the first anode device 4, the first connecting circuit 61, the inner container and the water in the inner container. The detecting unit 3 is connected to the first connecting circuit 61 or the first anode device 4 or the inner container, and is used for detecting an electrical signal in the connecting circuit (including flowing through the first anode device 4), wherein the electrical signal may include: current or an electrical parameter equivalent to the current, such as an electric quantity, a voltage, etc.

Taking the current obtained by the detecting unit 3 as an example, after the current signal is obtained by the detecting unit 3, the current consumption of the physical anode can be reflected according to the magnitude of the current. The service life of the current physical anode can be determined according to the condition that the physical anode consumes electrons subsequently, so that a user can be reminded of replacing the physical anode in time, and the inner container can be protected reliably all the time.

Specifically, the water storage type water heater may further include a controller electrically connected to the detection unit 3, the detection unit 3 is configured to obtain a first electrical parameter of the first anode device 4, and the controller may obtain a second electrical parameter of the second anode device 5 based on the obtained first electrical parameter.

The first electrical parameter of the first anode device 4 obtained by the detecting unit 3 may be a current flowing through the first anode device 4, or an amount of electricity flowing through the first anode device 4 within a predetermined time, or another parameter equivalent to the current. The second electrical parameter may be a current generated by the physical anode in the inner container where the physical anode is located, or an amount of electricity generated within a predetermined time, or another parameter equivalent to the current.

In the controller, control logic may be stored relating between a first electrical parameter and a second electrical parameter, which control logic, when invoked, may retrieve the second electrical parameter of the second anode arrangement 5 based on the retrieved first electrical parameter. At least the current electron consumption of the physical anode can be determined using the second electrical parameter. The service life of the current physical anode can be determined according to the condition that the physical anode consumes electrons, so that a user can be reminded to replace the physical anode in time, and the inner container can be protected reliably all the time.

Referring to fig. 4 to 8, in the embodiment of the present specification, an embodiment in which the inner container mainly includes the first inner container 11 and the second inner container 12 will be mainly described. Other embodiments, for example, an embodiment provided with one inner container 1, can refer to the above-mentioned embodiment including two inner containers, and details thereof are not repeated in the present application.

In some embodiments, the liner includes a first liner 11 and a second liner 12 that are connected to each other, the first anode device 4 is disposed in the first liner 11, and the second anode device 5 is disposed in the second liner 12.

Specifically, the other end of the first anode device 4 is located outside the first inner container 11 and detachably connected to the first inner container 11 through a connecting mechanism, and an insulating member is arranged between the connecting mechanism and the first inner container 11.

The first anode device 4 may be integrally located in the first inner container 11, wherein one end of the first anode device 4 may be detachably connected to the first inner container 11, and has at least one portion extending out of the first inner container 11 for connecting with the first connecting circuit 61. The detachable connection mode may be a threaded connection, and of course, the detachable connection mode is not limited to the above example, and may also be a snap connection, and the like, and the application is not specifically limited herein. When the detachable connection is a screw connection, the connection mechanism may be a screw connection mechanism formed between the first inner container 11 and the first anode assembly 4. For example, a stud hole is provided in the first inner container 11, and a screw thread that fits into the stud hole is provided at one end of the first anode device 4. In order to ensure that the first anode device 4 is mounted on the first inner container 11 in an insulated manner, an insulating member may be provided between the connecting mechanism and the first inner container 11. Specifically, the insulating member may be an insulating pad made of an insulating material, although the specific form, shape, configuration, and installation manner of the insulating member are not specifically limited herein.

In one embodiment, the extending direction of the first anode device 4 is the same as the extending direction of the first inner container 11, one end of the second anode device 5 extends into the inner container along the height direction, and the other end is fixed at the bottom of the second inner container 12.

In this embodiment, since the second anode device 5 is a physical anode, i.e., a sacrificial anode, it needs to be replaced in time after the service life is reached. Considering comprehensively the installation environment of the water storage type water heater (usually, the water storage type water heater is installed in a bathroom with a limited space in a hanging manner), and the shape and structure of the second anode device 5 (with a certain length and length structure), when the second anode device 5 is fixed on the bottom wall of the inner container by adopting one end and the other end extends into the inner container along the height direction, if the second anode device 5 needs to be replaced, the second anode device only needs to be pulled out from the bottom, and the water storage type water heater is convenient and quick to assemble and disassemble. Specifically, the first liner 11 and the second liner 12 are arranged vertically along the height direction, and the first liner 11 is located above the second liner 12. Wherein the second anode device 5 is mounted on the second inner container 12.

When the first inner container 11 and the second inner container 12 are arranged up and down along the height direction, the first inner container 11 is arranged below the second inner container 12, considering that the installation environment of the existing water storage type water heater is generally limited, especially the upper part and the side part of the water heater do not have enough operation space, and relatively, a certain operation space exists at the lower part of the water heater; when the second anode apparatus 5 is installed at the bottom of the second inner container 12, the second anode apparatus 5 can be directly replaced from the lower portion. Of course, in other alternative embodiments, the second anode assembly 5 may be installed along the length of the inner container.

In one embodiment, the first inner container 11 is a horizontal inner container extending along a first direction, and has a first end cap and a second end cap opposite to each other along the first direction, the first end cap is used for mounting the first anode device 4, one end of the connection circuit is connected to one end of the first anode device 4, and the other end of the connection circuit is connected to the first end cap.

In this embodiment, the first inner container 11 may be a horizontal inner container, and when the water storage type water heater is installed in place, the first direction is a horizontal direction or a direction close to the horizontal direction. Along the first direction, the first liner 11 has opposing first and second end caps. Wherein the first end cap is a head cap for integrally mounting various functional components (including the first anode device 4). Since the head cover is provided with various functional parts in a concentrated manner, the functional parts are also concentrated on the end cover during subsequent maintenance. The inner wall of the end cover is not provided with a heat-insulating layer, and the other part of the liner is provided with a heat-insulating layer. When one end of the connecting circuit is connected with the first anode device 4 and the other end of the connecting circuit is connected to the first end cover, the insulating layer can not be damaged relative to the connecting circuit connected to other positions, and on the other hand, the centralized maintenance on the same end cover is facilitated.

Wherein the second anode means 5 is a physical anode. The first anode means 4 may specifically comprise any one or a combination of the following: an electronic anode, a physical anode.

As shown in fig. 4 to 7, the first anode arrangement 4 is a physical anode. As shown in fig. 8, the first anode device 4 includes an electronic anode, and the first anode device 4 may further include a physical anode, and when the first anode device 4 includes the physical anode and the electronic anode, the electronic anode and the physical anode may be distributed in the first inner container 11 in a staggered manner along the height direction.

As shown in fig. 4 to 7, when the first anode arrangement 4 includes a physical anode, the sensing unit 3 is disposed on the first connection circuit 61. When the sensing unit 3 is connected to the first connection circuit 61, a current parameter in the first connection circuit 61 may be acquired. Depending on the specific form of the detecting unit 3, the connecting manner with the first connecting circuit 61 is different.

As shown in fig. 4, for example, when the detecting unit 3 is embodied as a current detecting unit 3, the detecting unit 3 may be connected in series in the first connecting circuit 61, and the current in the first connecting circuit 61, i.e., the current flowing through the first anode device 4, may be directly obtained by using the detecting unit 3.

As shown in fig. 5, a first switch 62 is disposed on the first connection circuit 61, a second connection circuit 63 connected in parallel with the first connection circuit 61 is further disposed on the storage water heater, and a second switch 64 is disposed on the second connection circuit 63. A resistor 65 may be provided in the second connection circuit 63.

The first switch 62 and the second switch 64 may be electrically connected to the controller. The controller may control the on and off states of the first switch 62 and the second switch 64. For example, during normal use, the controller may control the first switch 62 to be open and the second switch 64 to be closed, while the second connection circuit 63 is in a connected state. The second connecting circuit 63 is provided with a resistor 65, so that the current in the whole loop can be relatively reduced, and the service life of the physical anode can be prolonged under the condition that the electrons provided by the second anode device 5 (physical anode) are constant. When the current detection is required, the controller may control the second switch 64 to be opened and the first switch 62 to be closed, and the first connection circuit 61 is in a connected state. Since the detection unit 3 is provided in the first connection circuit 61 (for example, the detection unit 3 may be a current detection unit), the current flowing through the first anode assembly 4 can be obtained by the detection unit 3.

As shown in fig. 6, a first connection circuit 61 is provided between the first anode device 4 and the inner container, a resistor 65 is provided in the first connection circuit 61, and the resistor 65 is connected in series with the first anode device 4, that is, the current flowing through the first anode device 4 and the resistor 65 is the same. The detection unit 3 may be specifically a voltage detection unit, the voltage detection unit 3 is configured to obtain a voltage of the resistor 65, and the controller is configured to determine the current flowing through the first anode assembly 4 based on the voltage. After the voltage across the resistor 65 is obtained by the detecting unit 3, the resistance of the resistor 65 may be stored in the controller, and the current flowing through the first anode assembly 4 may be determined by the obtained voltage and the pre-stored resistance.

Furthermore, the detection unit 3 may be an electric quantity detection unit for acquiring the electric quantity flowing through the first anode arrangement 4 within a predetermined period of time, and the controller may determine the electric current flowing through the first anode arrangement 4 based on the electric quantity and the predetermined period of time. When the detecting unit 3 is a power detecting unit, it can be connected in series in the first connecting circuit 61, specifically, the detecting principle is similar to that of the current detecting unit, and the main difference is that: the charge detection needs to take the cumulative effect of time on the current into account on the basis of the current detection unit.

As shown in fig. 7, a first switch 62 is provided on the first connection circuit 61 for connecting the first inner container 11 and the first anode device 4, a second connection circuit 63 connected in parallel with the first connection circuit 61 is further provided on the storage water heater, and a second switch 64 is provided on the second connection circuit 63. A resistor 65 may be provided in the second connection circuit 63.

The first switch 62 and the second switch 64 may be electrically connected to the controller. The controller may control the on and off states of the first switch 62 and the second switch 64.

For example, when the water quality is better, the second switch 64 is closed, the second connection circuit 63 is in a connected state, and the second connection circuit 63 is provided with the resistor 65, so that the current in the whole loop is relatively reduced, and on one hand, under the condition that the electrons provided by the second anode device 5 (physical anode) are constant, the service life of the physical anode can be prolonged; on the other hand, the current transition generated in the loop can be prevented, and the inner container is protected from being overflowed. The resistor may also be used in conjunction with the detection unit 3 in a state when the second connection circuit 63 is in communication, thereby obtaining a current through the first anode arrangement 4. Specifically, the detecting unit 3 may be a voltage detecting unit, and of course, the detecting unit 3 may also be in other forms as described above, and the present application is not limited in particular herein.

For example, when the water quality is poor, the corrosion of the inner container may be aggravated, and at this time, the first switch 62 may be controlled to be closed, and the first connection circuit 61 is in a connected state, so as to ensure that sufficient current is generated in the circuit, and thus the inner container is reliably protected.

As shown in fig. 8, the first anode device 4 may include an electronic anode, the storage water heater further includes a power supply device 8, and the power supply device 8 and the detection unit 3 are disposed on the first connection circuit 61.

In this embodiment, when the first anode arrangement 4 comprises an electronic anode, the electronic anode requires an external power supply according to its operating principle. Specifically, the power supply device 8 may be connected through the first connection circuit 61, thereby supplying power to the electron anode. The first connection circuit 61 is also provided with a detection means 3, and the current flowing through the first connection circuit 61 and the first anode device 4 can be detected by the detection means 3. The detection unit 3 is a current detection unit for obtaining the current flowing through the first anode device 4.

Of course, the detecting unit 3 may be a voltage detecting unit or an electric quantity detecting unit, besides the current detecting unit. For example, when the detecting unit 3 is a voltage detecting unit, a resistor 65 may be further disposed on the first connecting circuit 61, and the voltage detecting unit may be connected in parallel to two ends of the resistor 65. When the detecting unit 3 is an electric quantity detecting unit, the current detecting unit is equivalent to the integration of the current detecting unit and a timer.

Further, the water storage type water heater can further comprise an alarm unit electrically connected with the controller.

The first electrical parameter obtained by the detecting unit 3 may be in the form of current, voltage or electric quantity; the second electrical parameter may be in the form of current, voltage, or electrical quantity. In the present embodiment, the first electrical parameter is exemplified as a current. After the detection unit 3 obtains the first current flowing through the first anode assembly 4, the controller can obtain the second current provided by the second anode assembly 5 according to the first current. The current service life of the second anode assembly 5 can be judged according to the second current. Once it is determined based on the second current that the current second current has reached the alarm value, an alarm unit may be activated to prompt a user to replace the second anode device 5 in time.

The specific form and installation position of the alarm unit are not specifically limited herein. For example, the alarm unit can be integrated on a panel of the water storage type water heater, and sends out a reminding signal to a user in a digital display and/or voice control mode, and in addition, the alarm unit can also be integrated in an APP on a user terminal, and the APP is utilized to send out the reminding signal to the user.

Further, when the first anode arrangement 4 comprises a physical anode, the alarm unit comprises: a first alarm unit for alarming the service life of the first anode device 4 and a second alarm unit for alarming the service life of the second anode device 5.

When the first anode device 4 and the second anode device 5 both comprise physical anodes, electrochemical corrosion occurs during use according to the working principle of the physical anodes, so that both need to be provided with an alarm unit. The first anode device 4 and the second anode device 5 are located at different positions and have different working conditions, so that the service lives of the first anode device and the second anode device are generally different. In order to accurately alarm the service life of the first anode device 4 and the second anode device 5 in time, different alarm units may be provided correspondingly.

Of course, the specific form of the first alarm unit and the second alarm unit is not limited in this application. For example, the first alarm unit may correspond to a first display module on a panel, and the second alarm unit may correspond to a second display module on the panel. Of course, in some embodiments, the first alarm unit and the second alarm unit may share the same hardware, e.g. share the same display screen. The service life corresponding to different anode devices can be respectively displayed on the display screen.

In one embodiment, the storage water heater may further include: the temperature control device comprises a first temperature detection piece for acquiring the water temperature in the first inner container 11 and a second temperature detection piece for acquiring the water temperature in the second inner container 12, wherein the first temperature detection piece and the second temperature detection piece are electrically connected with the controller.

In the water storage type water heater, a plurality of temperature detecting members for detecting the temperature of water in the inner container are generally provided along the height direction. When the inner container of the water storage type water heater comprises a first inner container 11 and a second inner container 12, at least one first temperature detection piece is arranged in the first inner container 11 and used for obtaining the first water temperature; at least one second temperature detecting element is arranged in the second inner container 12 for obtaining a second water temperature. The first temperature detection piece and the second temperature detection piece are both electrically connected with the controller, and the controller can acquire a first water temperature based on the first temperature detection piece and a second water temperature based on the second temperature detection piece. Wherein the first water temperature can represent a water temperature environment in which the first anode device 4 is located, and the second water temperature can represent a water temperature environment in which the second anode device 5 is located.

Based on the water storage type water heater provided in the above embodiment, the present application also provides a control method of a water storage type water heater, where the control method may include: acquiring a first electrical parameter of the first anode device 4 through the detection unit 3; second electrical parameters of the second anode arrangement 5 are obtained based on the first electrical parameters.

In the controller, control logic may be stored relating to the first electrical parameter and the second electrical parameter, and when invoked, the second electrical parameter of the second anode arrangement 5 may be obtained based on the obtained first electrical parameter. At least the current electron consumption of the physical anode can be determined using the second electrical parameter. The service life of the current physical anode can be determined according to the condition that the physical anode consumes electrons subsequently, so that a user can be reminded of replacing the physical anode in time, and the inner container can be protected reliably all the time.

In one embodiment, the control method of the water storage type water heater may specifically include the following steps:

step S10: acquiring a first electrical parameter of the first anode device 4, a first working condition of the liner where the first anode device 4 is located, and a second working condition of the liner where the second anode device 5 is located;

step S12: according to the acquired first working condition and the first electrical parameter, calling a first corresponding relation between the first electrical parameter and the first working condition and a second corresponding relation between the second electrical parameter and the second working condition;

step S14: determining a proportionality coefficient according to the obtained first working condition and second working condition and the first corresponding relation and the second corresponding relation;

step S16: and determining the current second electrical parameter according to the proportionality coefficient and the acquired first electrical parameter.

Before the first electrical parameter is obtained, in order to ensure the accuracy of the obtained first electrical parameter, the heating device 2 may be controlled to be powered on for a first time period, and the inner container is polarized, so that electrons are supplemented in place. Specifically, the first duration may be 24 hours, and the specific value of the first duration is not specifically limited in this application, and only the inner container needs to be polarized.

In this embodiment, the first operating condition may include, but is not limited to: water temperature, water quality, inner container state, etc. Generally, the first anode device 4 and the second anode device 5 are located at different positions, and at least the first anode device 4 and the second anode device 5 have different water temperature conditions. In addition, in the case where the first anode device 4 and the second anode device 5 are provided in different liners, the liner states may be different. In addition, if the water source communicated with the first inner container 11 and the second inner container 12 is different, the water quality of the first anode device 4 and the water quality of the second anode device 5 may be different.

The detection unit 3 may be used to obtain a first electrical parameter, the first temperature detector may be used to obtain a first water temperature of the first anode device 4, and the second temperature detector may be used to obtain a second water temperature of the second anode device 5. In the following embodiments, the first operating condition is mainly exemplified by the first water temperature as the main influence factor, and the second operating condition is mainly exemplified by the second water temperature as the main influence factor.

Then, according to the obtained first working condition and the first electrical parameter, a first corresponding relationship between the first electrical parameter and the first working condition and a second corresponding relationship between the second electrical parameter and the second working condition are called, which specifically includes:

determining the consumption rate range of the first anode device 4 according to the acquired first working condition and the acquired first electrical parameter;

and acquiring a first corresponding relation between the first electrical parameter and a first working condition and a second corresponding relation between the second electrical parameter and a second working condition according to the determined consumption rate range.

In the present embodiment, taking the physical anode of the first anode device 4 as an example, the controller may store in advance the corresponding relationship between the consumption rate range of the anode rod and the operating condition (e.g., the first water temperature) and the first electrical parameter, that is, different consumption rate ranges are stored under different conditions of the first water temperature and the first electrical parameter, and the consumption rate range of the first anode device 4 may be determined according to the obtained first water temperature and the first electrical parameter.

The controller also stores a corresponding relationship corresponding to the consumption rate range, the corresponding relationship including: the first anode device 4 has a first electrical parameter corresponding to a first operating condition, and the second anode device 5 has a second electrical parameter corresponding to a second operating condition.

After determining the consumption rate range of the first anode arrangement 4, the corresponding: the first corresponding relation between the first electrical parameter and the first working condition and the second corresponding relation between the second electrical parameter and the second working condition.

The first electrical parameter may be a first current, and the second electrical parameter may be a second current. When the first electrical parameter is exemplified by a first current and the second electrical parameter is exemplified by a second current, the first corresponding relationship is as follows: i is₁＝f₁(T₁) (ii) a The second corresponding relation is I₂＝f₂(T₂)；

In the above formula, T₁The first water temperature is represented and obtained through detection of the first temperature detection piece; t is a unit of₂The second water temperature is represented and obtained through detection of a second temperature detection piece; wherein the functional relationship f₁And functional relation f₂Respectively, one or a combination of more of a linear relationship, an exponential relationship, or a logarithmic relationship.

After the first corresponding relationship and the second corresponding relationship are determined, the first working condition can be substituted into the first corresponding relationship, the second working condition is substituted into the second corresponding relationship, the first current and the second current which correspond to each other in theory are obtained in a distributed mode, and the ratio of the second current to the first current is the proportionality coefficient. Specifically, the scaling factor a is I2/I1, and the current second current is a × the first current. Subsequently, the current second electrical parameter can be determined according to the proportionality coefficient and the acquired first electrical parameter. I.e., I2 actual is a × I1 actual.

Further, the control method may further include: determining the accumulated generated electric quantity in a preset time period based on the current second current; and when the electric quantity is greater than the preset electric quantity, sending an alarm signal.

The controller may store a preset amount of electricity of the physical anode, and when the amount of electricity discharged by the physical anode exceeds the preset amount of electricity, the controller indicates that the service life of the physical anode has been reached. When the electric quantity corresponding to the accumulated time length based on the second current is larger than the preset electric quantity, an alarm signal can be sent to a user.

In the present embodiment, the first electrical parameter of the first anode device 4 is obtained by the detection device, and the first operating condition of the first anode device 4 and the second operating condition of the second anode device 5 are obtained by other detection elements (e.g. temperature detection elements), and the current second electrical parameter of the second anode device 5 can be determined by using the control logic pre-stored in the controller. Further, based on the second electrical parameter, the power consumption of the second anode arrangement 5 as a physical anode can be determined, thereby identifying the service life of the second anode arrangement 5.

In another embodiment, the control method may specifically include the steps of:

step S11: acquiring a first electrical parameter of the first anode device 4, a first working condition of the liner where the first anode device 4 is located, and a second working condition of the liner where the second anode device 5 is located;

step S13: determining a first corresponding relation between the first electrical parameter and a first working condition according to the acquired first electrical parameter and the first working condition;

step S15: and obtaining the current second electrical parameter according to the second working condition and the first corresponding relation.

Before the first electrical parameter is obtained, in order to ensure the accuracy of the obtained first electrical parameter, the heating device 2 may be controlled to be powered on for a first time period, and the liner is polarized, so that the electrons are supplemented in place. Specifically, the first time period may be specifically 24 hours, and of course, a specific value of the first time period is not specifically limited in this application, and only the inner container needs to be polarized.

And then, determining a first corresponding relation between the first electrical parameter and the first working condition according to the acquired first electrical parameter and the first working condition. The first electrical parameter may be exemplified by a first current, and the first operating condition is exemplified by a first water temperature.

When the first corresponding relationship is determined, data fitting can be performed through the acquired first current and the first water temperature, so that the first corresponding relationship is determined. Of course, when the first operating condition includes more parameters, a plurality of sets of data may be formed by other parameters, the first current and the first water temperature, and the plurality of sets of data are analyzed and fitted subsequently, so as to determine the first corresponding relationship between the first electrical parameter and the first operating condition.

After the first corresponding relationship between the first electrical parameter and the first working condition is determined, the current second electrical parameter can be obtained according to the second working condition and the first corresponding relationship. Specifically, the current second electrical parameter may be determined by substituting the second operating condition (e.g., the second water temperature) into the first corresponding relationship.

Further, the control method may further include: and correcting the current second electrical parameter to obtain an actual value of the current second electrical parameter.

After the current second electrical parameter is determined by using the first corresponding relationship and the second operating condition, considering that the operating conditions of the first anode device 4 and the second anode device 5 may have influence factors (such as the state of the inner container) in addition to the difference in water temperature, the calculated second electrical parameter may be corrected in order to obtain a more accurate second electrical parameter. The correction coefficient can be prestored in the controller, or the water storage type water heater is provided with a self-learning module, and the self-learning module is used for obtaining the correction coefficient in the use process of the water storage type water heater.

In one embodiment, the first electrical parameter is a first current, and the second electrical parameter is a second current;

the first correspondenceThe relationship is as follows: i is₁＝f(T₁)；

In the above formula, I₁Representing a first current; t is₁Representing a first water temperature in a first operating condition;

the second current I actually present₂＝a×f(T₂)；

T₂Indicating a second water temperature in a second operating condition; a is a preset constant or is determined by a preset mode; i is₂Representing the currently actual second current, the functional relationship f is one or a combination of linear, exponential or logarithmic relationships.

The correction coefficient a is a preset constant stored in the controller, or the water storage type water heater is provided with a self-learning module, and the self-learning module is used for obtaining the correction coefficient in the use process of the water storage type water heater.

In one embodiment, the first anode device 4 is a physical anode, and the control method may further include:

comparing the first current with a preset current;

and when the first current is smaller than the preset current, sending out an alarm signal for replacing the first anode device 4.

In the present embodiment, when the first anode means 4 is a physical anode, it also has a predetermined service life as a sacrificial anode. In order to monitor the service condition of the first anode device 4 and remind a user in time when the service life of the first anode device 4 reaches a set value, a preset current corresponding to the first anode device 4 may be stored in the controller, and when the first current flowing through the first anode device 4 is smaller than the preset current, the current ability of the first anode device 4 to provide electrons is indicated and the requirement of reliably protecting the inner container cannot be met, and an alarm signal for replacing the first anode device 4 may be sent to the user.

In addition, when the first current is greater than or equal to the preset current, the step of comparing the first current with the preset current is continuously performed until the first current is less than the preset current.

If the comparison of the obtained first current and the predetermined current results in: if the first current is greater than the preset current, it indicates that the first anode device 4 still has the ability of the arch of foot to provide the electrons needed for protecting the inner container, and at this time, the step of comparing the first current with the preset current may be continuously performed until the first current is less than the preset current, and an alarm signal for replacing the first anode device 4 is sent out.

Although the embodiments of the present invention have been described above, the above description is only for the purpose of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should it be construed that the utility model does not contemplate that such subject matter is part of the disclosed utility model subject matter.

Claims

1. A water storage type water heater, comprising:

the inner container is used for storing water;

the heating device is used for heating the water in the inner container;

the first anode device is insulated from the liner and is electrically connected with the liner through a first connecting circuit;

a detection unit connected to the first connection circuit or the first anode device or the inner container;

and the second anode device is a physical anode and is connected to the inner container.

2. The water storage type water heater according to claim 1, further comprising a controller electrically connected to the detection unit, wherein the detection unit is configured to obtain a first electrical parameter of the first anode device, and the controller is configured to obtain a second electrical parameter of the second anode device based on the obtained first electrical parameter.

3. The water storage type water heater according to claim 2, wherein the inner container comprises a first inner container and a second inner container which are communicated with each other, the first anode device is arranged in the first inner container, and the second anode device is arranged in the second inner container.

4. The water storage heater of claim 3, wherein said first anode means comprises any one or combination of: an electronic anode, a physical anode.

5. The water storage type water heater according to claim 2, wherein the first anode device comprises a physical anode, and the detection unit is disposed on the first connection circuit.

6. The water storage type water heater according to claim 2, wherein the first anode device comprises an electronic anode, the water storage type water heater further comprises a power supply device, and the power supply device and the detection unit are arranged on the first connection circuit.

7. A storage water heater as claimed in claim 5 or 6 further comprising a resistor connected in series with the first anode means.

8. The water storage type water heater according to claim 7, wherein a first switch is arranged on the first connecting circuit, a second connecting circuit connected with the first connecting circuit in parallel is further arranged on the water storage type water heater, a second switch is arranged on the second connecting circuit, and the resistor is arranged in the first connecting circuit.

9. The water storage type water heater according to claim 7, wherein the detection unit is a voltage detection unit for obtaining a voltage of the resistor, the controller is capable of determining a current flowing through the first anode device based on the voltage, or,

the detection unit is a current detection unit for obtaining a current flowing through the first anode arrangement, or,

the detection unit is an electric quantity detection unit which is used for acquiring the electric quantity flowing through the first anode device within a preset time length, and the controller can determine the current flowing through the first anode device based on the electric quantity and the preset time length.

10. The water storage type water heater according to claim 3, wherein the extending direction of the first anode device is consistent with the extending direction of the first inner container, one end of the second anode device extends into the inner container along the height direction, and the other end of the second anode device is fixed at the bottom of the second inner container.

11. The water storage type water heater according to claim 10, wherein the first inner container and the second inner container are vertically arranged along a height direction, and the first inner container is positioned above the second inner container.

12. The water storage heater of claim 11 wherein said second anode means is mounted on said second tank.

13. The water storage heater of claim 2, further comprising an alarm unit electrically connected to the controller.

14. The water storage type water heater of claim 13, wherein when the first anode means comprises a physical anode, the alarm unit comprises: the device comprises a first alarm unit for alarming the service life of a first anode device and a second alarm unit for alarming the service life of a second anode device.

15. The water storage type water heater according to claim 3, wherein one end of the first anode device is positioned outside the first inner container and detachably connected to the first inner container through a connecting mechanism, and an insulating member is arranged between the connecting mechanism and the first inner container.

16. A water storage type water heater according to claim 3, wherein the first inner container is a horizontal inner container extending along a first direction, a first end cap and a second end cap are provided along the first direction, the first end cap is used for mounting the first anode device, one end of the connecting circuit is connected with one end of the first anode device, and the other end of the connecting circuit is connected to the first end cap.

17. A storage water heater as defined in claim 3, further comprising: the temperature control device comprises a first temperature detection piece and a second temperature detection piece, wherein the first temperature detection piece is used for acquiring the water temperature in the first inner container, the second temperature detection piece is used for acquiring the water temperature in the second inner container, and the first temperature detection piece and the second temperature detection piece are electrically connected with the controller.