Water heater

Abstract

The utility model discloses a water heater, include: water tank, water tank includes box shell and inner bag, and the inner bag sets up in the box shell, the one end of inner bag is provided with flange plate, is provided with first mounting hole and second mounting hole on the flange plate, heating module, heating module sets up on the flange plate, and heating module is configured to the water in the inner bag is heated, electron anode, electron anode sets up in first mounting hole and extends into the inner bag, magnesium stick, magnesium stick sets up in second mounting hole and extends into the inner bag, control component, control component includes relay, relay respectively with heating module, electron anode with magnesium stick is connected, the relay is configured to when the water heater power -on work, turn on electron anode and disconnect magnesium stick, and the relay is still configured to when the water heater power -off shutdown, turn on magnesium stick and disconnect electron anode. Realize the assembly efficiency of water heater and reduce overall manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and in particular relates to a water heater. Background Technology

[0002] Currently, water heaters are common household appliances, categorized into electric water heaters, heat pump water heaters, and solar water heaters. Electric water heaters are widely used due to their convenience. Among them, storage-type electric water heaters, equipped with a water tank, offer advantages such as large water output and stable water temperature, making them increasingly popular with families.

[0003] A typical storage-type electric water heater usually consists of a water tank, heating element, and electrical control board. The water tank is typically treated with anti-corrosion coating to protect the inner tank from corrosion. For example, Chinese Patent Publication No. CN 216282037 U discloses an electric water heater with an electronic anti-corrosion device, in which a magnesium rod and an electronic anode are installed on the inner tank. Thus, during use, when the water heater is powered on, current-based anti-corrosion protection is provided by the electronic anode; when the water heater is powered off, current-based anti-corrosion protection is provided by the magnesium rod.

[0004] However, during product assembly, the magnesium rod is installed through mounting holes on the inner tank, while the electronic anode is typically mounted on the flange. On the one hand, the assembly process requires separate installation of the magnesium rod and electronic anode on the inner tank, resulting in low assembly efficiency; on the other hand, the inner tank requires additional openings, increasing manufacturing costs. Therefore, designing a water heater that improves assembly efficiency and reduces manufacturing costs is the technical problem this invention aims to solve. Utility Model Content

[0005] This utility model provides a water heater that improves assembly efficiency and reduces overall manufacturing costs.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In one aspect, this utility model provides a water heater, comprising: A water tank, comprising a tank shell and an inner liner, the inner liner being disposed within the tank shell; a flange being disposed at one end of the inner liner; and a first mounting hole and a second mounting hole being disposed on the flange; A heating module is disposed on the flange and configured to heat the water in the inner tank; An electronic anode is disposed in the first mounting hole and extends into the inner liner; A magnesium rod, which is disposed in the second mounting hole and extends into the inner liner; A control component, comprising relays connected to the heating module, the electronic anode, and the magnesium rod, respectively. The relay is configured to connect the electronic anode and disconnect the magnesium rod when the water heater is powered on, and the relay is also configured to connect the magnesium rod and disconnect the electronic anode when the water heater is powered off.

[0007] In one embodiment of this application, the electronic anode includes an electrode rod, a conductive rod, and an insulating mounting base. The electrode rod is disposed on the conductive rod and electrically connected to the conductive rod. The conductive rod is disposed on the insulating mounting base, and the insulating mounting base is disposed on the first mounting hole.

[0008] In one embodiment of this application, a mounting tube is further provided on the first mounting hole, and the mounting tube is provided with an internal thread, and the insulating mounting seat is threadedly connected to the mounting tube.

[0009] In one embodiment of this application, an annular positioning portion is formed on the conductive rod, and the annular positioning portion is arranged around the conductive rod. A first sealing ring is provided between the annular positioning part and the inner wall of the flange.

[0010] In one embodiment of this application, the insulating mounting base is provided with a sealing portion, and the sealing portion is arranged around the insulating mounting base; The flange is sandwiched between the annular positioning part and the sealing part.

[0011] In one embodiment of this application, a second sealing ring is provided between the sealing portion and the outer wall of the flange.

[0012] In one embodiment of this application, the end of the conductive rod extending outside the insulating mounting base is further provided with a locking part, and the locking part is provided with a detachable locking element; The insulating mounting base is sleeved on the conductive rod and located outside the annular positioning portion. The locking member is located outside the insulating mounting base and is configured to clamp the flange between the annular positioning portion and the sealing portion.

[0013] In one embodiment of this application, the locking part is a threaded part formed at the end of the conductive rod, the locking member is a locking nut, the locking nut is threadedly connected to the threaded part, and the sealing part is sandwiched between the outer wall of the inner liner and the locking nut.

[0014] In one embodiment of this application, the first mounting hole is a threaded mounting hole; The insulating mounting base is threaded into the threaded mounting hole; An annular positioning portion is formed on the conductive rod, and the annular positioning portion is arranged around the conductive rod; the conductive rod seals through the insulating mounting base, and a third sealing ring is provided between the annular positioning portion and the inner wall of the insulating mounting base.

[0015] In one embodiment of this application, the end of the conductive rod extending outside the insulating mounting base is further provided with a locking part, and the locking part is provided with a detachable locking member, which abuts against the outer surface of the insulating mounting base.

[0016] In one embodiment of this application, the annular positioning part and the conductive rod are an integral structure; or, the annular positioning part is sealed and welded to the conductive rod.

[0017] In one embodiment of this application, the electronic anode is disposed above the heating module.

[0018] In one embodiment of this application, the electrode rod and the conductive rod are an integral structure; or, the electrode rod is welded to the conductive rod.

[0019] In one embodiment of this application, the water tank includes two inner tanks arranged vertically, and each inner tank is equipped with the heating module, the electronic anode, and the magnesium rod.

[0020] Compared with existing technologies, the advantages and positive effects of this utility model are as follows: By setting a relay to control the electronic anode and magnesium rod, the relay switches the conduction of either the electronic anode or the magnesium rod during the switching process, thus enabling synchronous control of both. More importantly, by integrating the heating module, electronic anode, and magnesium rod onto the flange, a modular structure is formed. This allows for subsequent assembly where the heating module, electronic anode, and magnesium rod are first assembled onto the flange and then centrally installed on the inner tank via the flange, eliminating the need for separate installation of the electronic anode and magnesium rod on the assembly line, thereby improving assembly efficiency. Furthermore, since no additional holes need to be drilled in the inner tank to accommodate the magnesium rod, the processing difficulty and cost of the inner tank are reduced, thus lowering the overall manufacturing cost of the water heater.

[0021] The annular positioning part formed on the conductive rod can squeeze the first sealing ring from the inside. After being squeezed, the first sealing ring can wrap the conductive rod more tightly, thereby improving the sealing performance of the conductive rod penetrating the inner liner.

[0022] In addition, by placing the electronic anode above the heating module, when excessive hydrogen accumulates in the inner tank, causing the water level to drop, the electronic anode will be exposed above the water surface first. Since the electronic anode needs the water in the inner tank to conduct current, in this situation, the electronic anode will stop releasing hydrogen when the power is cut off. This ensures that hydrogen does not continue to increase in the inner tank, thus preventing the liquid level from continuously dropping and ensuring that the heating module is always submerged in water. This prevents hydrogen from coming into contact with the heating module and causing an explosion, thereby improving the safety of the water heater.

[0023] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is one of the structural schematic diagrams of an embodiment of the water heater of this utility model; Figure 2 This is a second structural schematic diagram of an embodiment of the water heater of this utility model; Figure 3 This is a cross-sectional view of one embodiment of the water heater of this utility model; Figure 4 yes Figure 3 A magnified view of a portion of region A in the middle; Figure 5 This is a partial structural diagram of a water heater according to the present invention, with the outer shell and inner tank removed. Figure 6 for Figure 5 One of the schematic diagrams of the structure of the electron anode; Figure 7 for Figure 5 Schematic diagram of the structure of the electron anode (Part 2); Figure 8 for Figure 5 Schematic diagram of the structure of the electron anode (Part 3); Figure 9 for Figure 8 Cross-sectional view of the electron anode.

[0026] Figure label: 1. Box shell; 2. Inner liner; 21. Flange; 3. Heating module; 4. Magnesium rod; 41. Screw; 5. Electronic anode; 51. Electrode rod; 52. Conductive rod; 53. Insulating mounting base; 54. First sealing ring; 55. Locking nut; 56. Second sealing ring; 521. Annular positioning part; 531. Sealing part; 6. Control components; 61. Relay; 62. Controller. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] An electric water heater is a type of water heater that uses electricity as its primary energy source. The high-temperature heat generated after the power is turned on directly heats the water stored in the water heater to produce hot water.

[0033] Electric water heaters typically consist of a water tank, an electric heating element, and an electronic control board. The water tank has a storage cavity to store water to be heated. The electric heating element is inserted into the storage cavity of the water tank. The electronic control board is used to control the electric heating element to operate by turning the power on and off, so that the water in the tank is heated to the set temperature.

[0034] For the water tank of an electric water heater, the tank generally consists of an outer shell and an inner tank, with an insulation layer between them. The outer shell is usually made of plastic to meet the requirements of aesthetic and diverse designs; the inner tank can be made of metal or plastic, depending on the needs.

[0035] In addition, the insulation layer formed between the outer shell and the inner liner is commonly made of materials such as asbestos, sponge, foam plastic, and polyurethane foam. In conventional technology, foaming is usually used to form the insulation layer in order to achieve good insulation effect.

[0036] For water tanks with metal inner liner, corrosion can easily occur inside due to water quality. Therefore, magnesium rods are installed on the water tank and inserted into the water storage cavity inside the tank.

[0037] Magnesium has the lowest electrochemical potential among metals and is physiologically non-toxic. Therefore, it is ideal for making magnesium rods to protect the inner liner. The size of the magnesium rod directly affects the duration and effectiveness of the protection; the larger the magnesium rod, the better the protection and the longer the protection time.

[0038] The water tank is also equipped with an inlet pipe and an outlet pipe. The inlet pipe is used to deliver cold water into the water storage cavity formed inside the water tank, while the hot water in the water storage cavity is output from the outlet pipe.

[0039] For electric heating components, electric heating methods such as electric heating wires, magnetic energy, or silicon tube heating can be used to heat the water stored in the water storage chamber.

[0040] The control board is used to receive detection signals from relevant sensors (such as water temperature sensors and flow sensors) and control the power supply to and from the electric heating components.

[0041] When the electric water heater is working, the electric control board controls the electric heating element to be powered on and heated. When the water temperature in the tank reaches the set value, the electric control board controls the electric heating element to be powered off.

[0042] like Figures 1-5 As shown, one embodiment of this application provides a water heater, including: A water tank, comprising a tank shell 1 and an inner liner 2, wherein the inner liner 2 is disposed within the tank shell 1; a flange 21 is provided at one end of the inner liner 2; and a first mounting hole (unmarked) and a second mounting hole (unmarked) are provided on the flange 21. Heating module 3, which is disposed on the flange 21, is configured to heat the water in the inner tank 2; An electronic anode 5 is disposed in the first mounting hole and extends into the inner liner 2; Magnesium rod 4, which is disposed in the second mounting hole and extends into the inner liner 2; Control component 6, the control component 6 includes a relay 61, the relay 61 is connected to the electronic anode 5 and the magnesium rod 4 respectively; The relay 61 is configured to connect the electronic anode 5 and disconnect the magnesium rod 4 when the water heater is powered on, and the relay 61 is also configured to connect the magnesium rod 4 and disconnect the electronic anode 5 when the water heater is powered off.

[0043] Specifically, for the water heater, heating module 3 is used to heat the water stored in inner tank 2. The specific physical form of heating module 3 is determined according to the heating method of the water heater. For example, if the water heater is an electric water heater, then heating module 3 can be an electric heating element. Here, there are no restrictions on the specific physical form of heating module 3.

[0044] To perform electrostatic corrosion protection on the inner tank 2, an electronic anode 5 and a magnesium rod 4 are installed on the inner tank 2. To achieve a modular design and improve assembly efficiency, both the electronic anode 5 and the magnesium rod 4 are integrated and mounted on the flange 21. Thus, during the actual assembly process, the heating module 3, the electronic anode 5, and the magnesium rod 4 can be pre-assembled on the flange 21 as an independent module. Then, on the overall water heater assembly line, the flange 21 is installed at the end of the inner tank 2, so that the heating module 3, the electronic anode 5, and the magnesium rod 4 are installed together on the inner tank 2.

[0045] The control component 6 is usually equipped with a controller 62, which sends control signals to the relay 61. The controller 62 can be a control element configured in a conventional water heater, such as a microcontroller or other controller 62, and there are no restrictions here.

[0046] During use, when the water heater is powered on and in operation, relay 61 controls the electronic anode 5 to conduct, energizing the electronic anode 5. Simultaneously, relay 61 disconnects the circuit containing the magnesium rod 4. At this time, the electronic anode 5 provides current-based corrosion protection for the inner tank 2.

[0047] When the water heater is powered off and in the off state, relay 61 disconnects the electrical circuit containing the electronic anode 5, thus de-energizing the electronic anode 5. At the same time, relay 61 connects the electrical circuit containing the magnesium rod 4. At this time, the magnesium rod 4 provides corrosion protection for the inner tank 2.

[0048] Since both the electronic anode 5 and the magnesium rod 4 are fixedly mounted on the flange 21, only mounting holes need to be made on the flange 21 to meet the installation requirements of the electronic anode 5 and the magnesium rod 4. Therefore, there is no need to make holes in the inner liner 2, and the processing cost of making holes on the flange 21 is lower than that of making holes in the inner liner 2. Furthermore, the flange 21 can meet the modular installation requirements of the heating module 3, the electronic anode 5, and the magnesium rod 4, thereby reducing processing costs and improving assembly efficiency.

[0049] The magnesium rod 4 is equipped with a screw 41, which passes through the flange 21 and is fixed by a nut. The magnesium rod 4 is insulated from the flange 21. The insulation installation method of the magnesium rod 4 can refer to the conventional insulation installation structure of the magnesium rod 4 and the inner liner 2, and is not limited here.

[0050] Furthermore, regarding the installation and fixing method of the electronic anode 5, the electronic anode 5 also needs to be insulated and fixedly installed on the flange 21. For example... Figure 4 As shown, the electronic anode 5 includes an electrode rod 51, a conductive rod 52, and an insulating mounting base 53. The electrode rod 51 is disposed on the conductive rod 52 and is electrically connected to the conductive rod 52. The conductive rod 52 is disposed on the insulating mounting base 53, and the insulating mounting base 53 is disposed on the first mounting hole.

[0051] Specifically, the electrode rod 51 and the conductive rod 52 are electrically connected. The electrode rod 51 is energized to provide current-based corrosion protection, while the conductive rod 52 is fixedly mounted on the flange 21 via an insulating mounting base 53.

[0052] In some embodiments, the electrode rod 51 and the conductive rod 52 are an integral structure; or, the electrode rod 51 is welded to the conductive rod 52.

[0053] In one embodiment, such as Figure 4 As shown, a mounting tube is also provided on the first mounting hole, and the mounting tube is provided with an internal thread, and the insulating mounting seat is threadedly connected to the mounting tube.

[0054] Specifically, the outer periphery of the insulating mounting base is provided with external threads, and the insulating mounting base is threaded into the mounting tube provided on the flange to fix the electronic anode on the flange.

[0055] In another embodiment, such as Figure 6 As shown, an annular positioning part 521 is formed on the conductive rod 52, and the annular positioning part 521 is arranged around the conductive rod 52; A first sealing ring 54 is provided between the annular positioning part 521 and the inner wall of the flange 21.

[0056] Specifically, the annular positioning part 521 provided on the conductive rod 52 can position and compress the first sealing ring 54 on the inner side of the flange 21, so that the first sealing ring 54 can be compressed between the annular positioning part 521 and the inner wall of the flange 21. The first sealing ring 54 forms an annular sealing area around the conductive rod 52 between the annular positioning part 521 and the inner wall of the flange 21, thereby improving the installation sealing performance of the electronic anode 5.

[0057] In some embodiments, the annular positioning part 521 may be integrally machined with the conductive rod 52 to form an integral structure; or, the annular positioning part 521 may be a separate component, which is fitted onto the conductive rod 52 and sealed and welded to the conductive rod 52.

[0058] In some embodiments, the insulating mounting base 53 is provided with a sealing part 531, the sealing part 531 is arranged around the insulating mounting base 53, and the flange 21 is sandwiched between the sealing part 531 and the annular positioning part 521.

[0059] Specifically, during the assembly process, the insulating mounting base 53 is fitted over the outside of the conductive rod 52, and the flange 21 is clamped between the sealing part 531 and the annular positioning part 521, so as to fix the electronic anode 5 on the flange 21.

[0060] In one embodiment, the end of the conductive rod 52 extending beyond the insulating mounting base 53 is further provided with a locking part, and the locking part is provided with a detachable locking element; The insulating mounting base 53 has a sleeve structure. The insulating mounting base 53 is inserted into the first mounting hole and is sleeved on the conductive rod 52. The conductive rod 52 passes through the first mounting hole.

[0061] Specifically, during the assembly process, the conductive rod 52 extends outward from the inside of the inner liner 2 and passes through the insulating mounting base 53. Then, it is connected and engaged with the locking part through the locking member, so that the inner liner 2 and the first sealing ring 54 are clamped between the sealing part 531 and the annular positioning part 521.

[0062] In one embodiment, the end of the conductive rod 52 extending beyond the insulating mounting base 53 is also provided with a threaded portion, which constitutes a locking portion. A locking nut 55 is threadedly connected to the threaded portion, and the locking nut 55 serves as a locking element. The sealing portion 531 is sandwiched between the outer wall of the inner liner 2 and the locking nut 55.

[0063] Specifically, during the assembly process, the conductive rod 52 extends outward from the inside of the inner liner 2 and passes through the insulating mounting base 53. Then, the locking nut 55 is threaded onto the threaded part of the conductive rod 52. After tightening the locking nut 55, the inner liner 2 and the first sealing ring 54 are clamped between the sealing part 531 and the annular positioning part 521.

[0064] In one embodiment, to further improve sealing performance, such as Figure 7 As shown, a second sealing ring 56 is provided between the sealing part 531 and the outer wall of the flange 21.

[0065] Specifically, a first sealing ring 54 and a second sealing ring 56 are respectively provided on the inner and outer sides of the flange 21. After tightening the locking nut 55, the flange 21 will be sandwiched between the first sealing ring 54 and the second sealing ring 56. The first sealing ring 54 and the second sealing ring 56 can effectively seal the outer periphery of the conductive rod 52 that passes through the first mounting hole of the flange 21.

[0066] In another embodiment, such as Figure 8 and Figure 9 As shown, the first mounting hole on the flange 21 is a threaded mounting hole.

[0067] An annular positioning part 521 is formed on the conductive rod 52, and the annular positioning part 521 is arranged around the conductive rod 52; The insulating mounting base 53 is threaded into the threaded mounting hole, the conductive rod 52 is sealed through the insulating mounting base 53, and the first sealing ring 54 is sandwiched between the annular positioning part 521 and the inner wall of the insulating mounting base 53.

[0068] Specifically, the conductive rod 52 is fixedly mounted on the insulating mounting base 53, and the connection between the conductive rod 52 and the insulating mounting base 53 is sealed by the first sealing ring 54. The insulating mounting base 53 is fixedly sealed to the flange 21 by a threaded connection, and the threaded connection between the insulating mounting base 53 and the flange 21 provides a good sealing connection. The portion of the conductive rod 52 that passes through the second mounting hole of the flange 21 is sealed by the annular positioning part 521 pressing against the first sealing ring 54 at the connection between the conductive rod 52 and the insulating mounting base 53. Thus, even if a gap occurs between the conductive rod 52 and the insulating mounting base 53, no leakage will occur due to the sealing effect of the first sealing ring 54.

[0069] In some embodiments, the annular positioning part 521 may be integrally machined with the conductive rod 52 to form an integral structure; or, the annular positioning part 521 may be a separate component, which is fitted onto the conductive rod 52 and sealed and welded to the conductive rod 52.

[0070] In some embodiments, the end of the conductive rod 52 extending beyond the insulating mounting base 53 is further provided with a threaded portion, and a locking nut 55 is threadedly connected to the threaded portion, the locking nut 55 abutting against the outer surface of the insulating mounting base 53.

[0071] Specifically, during the assembly process, the electronic anode 5 is first assembled, and after the conductive rod 52 passes through the insulating mounting base 53, the locking nut 55 is threaded onto the conductive rod 52, so that the first sealing ring 54 is pressed between the annular positioning part 521 and the inner wall of the insulating mounting base 53. Then, the entire electronic anode 5 is threaded onto the inner liner 2 through the insulating mounting base 53.

[0072] The annular positioning part 521 formed on the conductive rod 52 can squeeze the first sealing ring 54 from the inside. After being squeezed, the first sealing ring 54 can wrap the conductive rod 52 more tightly, thereby improving the sealing performance of the conductive rod 52 penetrating the inner liner 2.

[0073] In one embodiment of this application, as Figure 3 As shown, the electronic anode 5 is positioned above the heating module 3.

[0074] Specifically, during use, hydrogen evolution occurs when the electronic anode 5 is energized. The hydrogen produced by the electrolysis of water by the electronic anode 5 accumulates in the inner liner 2. As the amount of hydrogen increases, the water level in the inner liner 2 continuously decreases due to the hydrogen.

[0075] Because the electronic anode 5 is positioned higher than the heating module 3, it will be exposed above the water surface first when the liquid level in the inner tank 2 decreases. At this point, the electronic anode 5, being above the water surface, cannot form a conductive circuit and will therefore not continue electrolyzing water to produce hydrogen. Furthermore, the heating module 3 remains below the water surface, preventing it from coming into contact with hydrogen and potentially exploding, thus improving safety during use.

[0076] Furthermore, the electronic anode 5 is configured to trigger the power-off of the heating module 3 after it emerges from the water surface.

[0077] Specifically, to improve safety more effectively, the circuit loop of the electronic anode 5 will be disconnected after the electronic anode 5 emerges from the water. At this time, the controller of the control component will control the corresponding relay to cut off the power to the heating module 3 when it detects that the electronic anode 5 is de-energized, so as to further improve safety.

[0078] The controller can control the heating module 3 to turn on and off using the conventional control method of electric water heaters. There are no restrictions on the specific operation control method of the heating module 3.

[0079] In one embodiment, the water tank includes two inner tanks 2 arranged vertically, and each inner tank 2 is equipped with the heating module, the electronic anode 5 and the magnesium rod 4.

[0080] The electronic anode 5 is configured to trigger a relay 61 to disconnect the power supply circuit of the electronic anode 5 after it emerges from the water surface.

[0081] Specifically, in the case of using two inner tanks, when each inner tank is equipped with an electronic anode 5, once the electronic anode 5 in the upper inner tank 2 emerges from the water surface, its power supply circuit will be disconnected. Thus, once the electronic anode 5 in the upper inner tank 2 emerges from the water surface, the electronic anode 5 in the lower inner tank 2 will be de-energized, thereby preventing the electronic anode 5 in the lower inner tank 2 from continuing to electrolyze water and produce hydrogen, thus improving reliability.

[0082] Furthermore, the electronic anode 5 is also configured to trigger the water heater to disconnect from the external power supply after emerging from the water surface.

[0083] Specifically, after the electronic anode 5 emerges from the water, the controller will disconnect the circuit from the mains power (external power source), thus ensuring that even if the water heater's power cord is connected to a socket in the user's home, the mains power will no longer supply power to the heating module 3, thereby improving safety and reliability. When the user presses the power switch on the water heater again, the water heater will be powered back on to the mains power.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A water heater, characterized in that, include: A water tank, comprising a tank shell and an inner liner, the inner liner being disposed within the tank shell; a flange being disposed at one end of the inner liner; and a first mounting hole and a second mounting hole being disposed on the flange; A heating module is disposed on the flange and configured to heat the water in the inner tank; An electronic anode is disposed in the first mounting hole and extends into the inner liner; A magnesium rod, which is disposed in the second mounting hole and extends into the inner liner; A control component, comprising relays connected to the heating module, the electronic anode, and the magnesium rod, respectively. The relay is configured to connect the electronic anode and disconnect the magnesium rod when the water heater is powered on, and the relay is also configured to connect the magnesium rod and disconnect the electronic anode when the water heater is powered off.

2. The water heater according to claim 1, characterized in that, The electronic anode includes an electrode rod, a conductive rod, and an insulating mounting base. The electrode rod is disposed on the conductive rod and electrically connected to the conductive rod. The conductive rod is disposed on the insulating mounting base, and the insulating mounting base is disposed on the first mounting hole.

3. The water heater according to claim 2, characterized in that, The first mounting hole is also provided with a mounting tube, and the mounting tube is provided with an internal thread, and the insulating mounting seat is threadedly connected to the mounting tube.

4. The water heater according to claim 2, characterized in that, An annular positioning portion is formed on the conductive rod, and the annular positioning portion is arranged around the conductive rod. A first sealing ring is provided between the annular positioning part and the inner wall of the flange.

5. The water heater according to claim 4, characterized in that, The insulating mounting base is provided with a sealing part, which is arranged around the insulating mounting base; The flange is sandwiched between the annular positioning part and the sealing part.

6. The water heater according to claim 5, characterized in that, A second sealing ring is provided between the sealing part and the outer wall of the flange.

7. The water heater according to claim 5, characterized in that, The end of the conductive rod extending outside the insulating mounting base is also provided with a locking part, and the locking part is provided with a detachable locking component; The insulating mounting base is sleeved on the conductive rod and located outside the annular positioning portion. The locking member is located outside the insulating mounting base and is configured to clamp the flange between the annular positioning portion and the sealing portion.

8. The water heater according to claim 7, characterized in that, The locking part is a threaded part formed at the end of the conductive rod, the locking element is a locking nut, the locking nut is threadedly connected to the threaded part, and the sealing part is sandwiched between the outer wall of the inner liner and the locking nut.

9. The water heater according to claim 2, characterized in that, The first mounting hole is a threaded mounting hole; The insulating mounting base is threaded into the threaded mounting hole; An annular positioning portion is formed on the conductive rod, and the annular positioning portion is arranged around the conductive rod; the conductive rod seals through the insulating mounting base, and a third sealing ring is provided between the annular positioning portion and the inner wall of the insulating mounting base.

10. The water heater according to claim 9, characterized in that, The end of the conductive rod extending beyond the insulating mounting base is also provided with a locking part, and the locking part is provided with a detachable locking element, which abuts against the outer surface of the insulating mounting base.

11. The water heater according to any one of claims 4-10, characterized in that, The annular positioning part is an integral structure with the conductive rod; or, the annular positioning part is sealed and welded to the conductive rod.

12. The water heater according to any one of claims 1-10, characterized in that, The electronic anode is positioned above the heating module.

13. The water heater according to any one of claims 2-10, characterized in that, The electrode rod and the conductive rod are an integral structure; or, the electrode rod is welded to the conductive rod.

14. The water heater according to any one of claims 1-10, characterized in that, The water tank includes two inner tanks arranged vertically, and each inner tank is equipped with the heating module, the electronic anode, and the magnesium rod.

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