Inner container module and electric water heater

Abstract

The present application relates to a kind of inner container module and electric water heater, and the inner container module includes: inner container body, installation pipe is arranged on inner container body, installation pipe protrudes from inner container body and is communicated with inner container body;Electric heating pipe, electric heating pipe is arranged on inner container body and is inserted into inner container body;Electronic anode, electronic anode includes electrode stem, conducting rod, first sealing ring and insulating plug, annular positioning portion is arranged on conducting rod, installation groove is arranged on insulating plug, first through hole is also arranged on insulating plug, electrode stem is arranged on conducting rod and is electrically connected with conducting rod, conducting rod passes through first through hole, annular positioning portion and first sealing ring are located in installation groove, first sealing ring is sleeved on conducting rod and is extruded between annular positioning portion and insulating plug;Wherein, insulating plug is sealingly arranged on installation pipe, and electrode stem is located in inner container body. Reduce electronic anode to occur water seepage to improve the use reliability of water heater.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, and in particular relates to an inner tank module and an electric water heater. Background Technology

[0002] Currently, water heaters are common household appliances. Storage-type electric water heaters, equipped with a water tank, are increasingly popular due to their large water output and stable water temperature. A typical storage-type electric water heater usually consists of a water tank, an electric heating element, and an electronic control board. To protect the inner tank from corrosion, the water tank is typically treated with anti-corrosion measures, usually including adding a magnesium rod or an external electron anode.

[0003] The use of an external electronic anode for corrosion protection of the inner tank avoids the scale buildup that can occur with magnesium rods. In practical use, the external electronic anode requires power. Chinese Patent Publication No. CN 216282037U discloses an electric water heater with an electronic corrosion protection device, employing a dual-tank structure and utilizing electronic anodes to protect both inner tanks from corrosion. Conventional electronic anodes typically use injection-molded insulating components on the conductive rod to meet insulation installation requirements.

[0004] However, during daily use of water heaters, the water temperature fluctuates significantly, resulting in a large temperature difference. This temperature difference causes the injection-molded insulating parts to expand and contract, creating gaps between them and the conductive rod. Water from the inner tank leaks out through these gaps from the electronic anode, reducing its reliability. Therefore, designing a technology to reduce water leakage from the electronic anode and improve the reliability of the water heater is the technical problem this invention aims to solve. Utility Model Content

[0005] The purpose of this utility model is to provide an inner tank module and an electric water heater that reduces water leakage from the electron anode to improve the reliability of the water heater.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution: This utility model proposes an inner liner module, comprising: An inner liner body, wherein an installation tube is provided on the inner liner body, the installation tube protruding from the inner liner body and communicating with the inner liner body; An electric heating element is disposed on the inner liner body and extends into the inner liner body; An electronic anode includes an electrode rod, a conductive rod, a first sealing ring, and an insulating plug. The conductive rod has an annular positioning part, the insulating plug has an installation groove, and the insulating plug also has a first through hole. The electrode rod is disposed on the conductive rod and electrically connected to the conductive rod. The conductive rod passes through the first through hole. The annular positioning part and the first sealing ring are located in the installation groove. The first sealing ring is sleeved on the conductive rod and pressed between the annular positioning part and the insulating plug. The insulating plug is sealed on the mounting tube, and the electrode rod is located in the inner liner body.

[0007] In one embodiment of this application, the end of the conductive rod extending outside the insulating mounting base is further provided with a detachable locking component, which abuts against the outer surface of the insulating mounting base.

[0008] In one embodiment of this application, the end of the conductive rod extending outside the insulating mounting base is further provided with a threaded portion, and a locking nut is threadedly connected to the threaded portion, the locking nut abutting against the outer surface of the insulating mounting base.

[0009] In one embodiment of this application, the mounting tube is provided with a first internal thread, and the insulating mounting seat is provided with a first external thread on its exterior. The insulating mounting seat is threadedly connected to the mounting tube.

[0010] In one embodiment of this application, the mounting tube is provided with a second external thread, the mounting groove is provided with a second internal thread, and the insulating mounting seat is threadedly connected to the mounting tube.

[0011] In one embodiment of this application, the inner liner module includes two inner liner bodies, which are arranged vertically and interconnected. The mounting tube is located at the bottom of the inner liner body, and the electrode rod is arranged in the two inner liner bodies.

[0012] In one embodiment of this application, a dry-burning prevention detection component is further included; the dry-burning prevention detection component includes a metal probe and an insulating mounting base; The metal probe is disposed on the insulating mounting base, and the wiring end of the metal probe extends to the outside of the insulating mounting base; The inner liner body located at the top is provided with a mounting hole, and the insulating mounting base is disposed in the mounting hole; The metal probe is positioned above the electric heating element and is configured to connect to the electric control board of the electric water heater and trigger the electric control board to cut off the power to the electric heating element after it emerges from the water surface.

[0013] In one embodiment of this application, the insulating mounting base is provided with a second through hole, the metal probe is provided with an annular baffle, the annular baffle is arranged around the metal probe, and the metal probe is also provided with a second sealing ring, the second sealing ring being pressed between the annular baffle and the insulating mounting base.

[0014] In one embodiment of this application, the insulating mounting base is provided with a second through hole, the metal probe is provided with an annular baffle, the annular baffle is arranged around the metal probe, and the metal probe is also provided with a second sealing ring, the second sealing ring being pressed between the annular baffle and the inner wall of the inner liner.

[0015] In one embodiment of this application, an installation part is provided on the inner liner body located above, the outer surface of the installation part forms an inclined mounting surface, and an installation hole is provided on the inclined mounting surface; The inclined mounting surface is configured to support the metal probe, which is inclinedly arranged in the inner liner body, and the portion of the metal probe located in the inner liner, excluding the end of the metal probe, is covered with an insulating layer.

[0016] Another embodiment of this application provides a water heater, including a shell, an electronic control board, and the aforementioned inner tank module, wherein the inner tank module is disposed in the shell, and the electronic control board is electrically connected to the electric heating tube and the electronic anode respectively.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The electronic anode is supported and installed on the conductive rod by an insulating mounting base. The insulating mounting base is set on the inner tank to realize the insulating installation of the electronic anode on the inner tank. The annular positioning part formed on the conductive rod can squeeze the first sealing ring on the inside. After being squeezed, the first sealing ring can wrap the conductive rod more tightly, which can play a good sealing role on the outer circumference of the conductive rod, preventing water in the inner tank from leaking out from the gap formed between the conductive rod and the insulating plug, thereby improving the reliability of the electronic anode and thus improving the reliability of the water heater.

[0018] 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

[0019] 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.

[0020] Figure 1 This is a cross-sectional view of an embodiment of the inner liner module of this utility model; Figure 2 for Figure 1 Schematic diagram of the structure of the electron anode; Figure 3 for Figure 2 Cross-sectional view of the electron anode; Figure 4 This is a cross-sectional view of another embodiment of the inner liner module of this utility model; Figure 5 for Figure 4 Cross-sectional view of the anti-dry burning detection component; Figure 6 This is a cross-sectional view of another embodiment of the inner liner module of this utility model; Figure 7 for Figure 6 A magnified view of a portion of region A in the middle; Figure 8 for Figure 6 Schematic diagram of the structure of a metal probe; Figure 9 for Figure 6 One of the structural schematic diagrams of the middle flange; Figure 10 for Figure 6 The second structural schematic diagram of the middle flange.

[0021] Figure label: 1. Inner liner body; 11. Mounting pipe; 12. Mounting part; 13. Inclined mounting surface; 14. Flange; 2. Electronic anode; 21. Electrode rod; 22. Conductive rod; 23. Insulating plug; 24. First sealing ring; 25. Locking nut; 221. Annular positioning part; 231. Mounting groove; 232. First through hole; 3. Electric heating element 4. Anti-dry-burning detection component; 41. Metal probe; 42. Insulating mounting base; 43. Second sealing ring; 44. Insulating layer; 411. Annular baffle; 421. Second through hole; Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] like Figures 1-3 As shown, one embodiment of this application provides an inner liner module, including: The inner liner body 1 is provided with an installation tube 11, which protrudes from the inner liner body 1 and is connected to the inner liner body 1. An electric heating element 3 is disposed on the inner liner body 1 and extends into the inner liner body 1; The electronic anode 2 includes an electrode rod 21, a conductive rod 22, a first sealing ring 24, and an insulating plug 23. The conductive rod 22 is provided with an annular positioning part 221, and the insulating plug 23 is provided with an installation groove 231 and a first through hole 232. The electrode rod 21 is disposed on the conductive rod 22 and electrically connected to the conductive rod 22. The conductive rod 22 passes through the first through hole 232. The annular positioning part 221 and the first sealing ring 24 are located in the installation groove 231. The first sealing ring 24 is sleeved on the conductive rod 22 and pressed between the annular positioning part 221 and the insulating plug 23. The insulating plug 23 is sealed on the mounting tube 11, and the electrode rod 21 is located in the inner liner body 1.

[0036] Specifically, for the water heater, an electric heating element 3 is used to heat the water stored in the inner tank 1. In order to provide current-based corrosion protection for the inner tank 1, an electronic anode 2 is installed on the inner tank 1. The electronic anode 2 uses the water in the inner tank 1 as a conductive medium. After the electronic anode 2 is energized, it will provide current-based corrosion protection for the inner tank 1.

[0037] In order to improve the reliability of the electronic anode 2 and reduce the occurrence of water leakage from the electronic anode 2 itself, a first sealing ring 24 is provided on the conductive rod 22, and the guide rod is sealed through the insulating plug 23 by the first sealing ring 24.

[0038] In the actual assembly process, the conductive rod 22 is fixedly installed on the insulating plug 23, which in turn is fixedly installed on the mounting tube 11 of the inner liner body 1. The insulating plug 23 achieves insulated installation and fixation between the conductive rod 22 and the inner liner body 1. The conductive rod 22 is covered by a first sealing ring 24. The conductive rod 22 passes through the first through hole 232 of the insulating plug 23 and is sealed by the first sealing ring 24. The first sealing ring 24 is pressed between the annular positioning part 221 and the insulating plug 23, effectively sealing the outer circumference of the conductive rod 22. The first sealing ring 24 can be made of high-temperature resistant rubber gaskets or similar components, ensuring that it will not fail even after prolonged exposure to hot water in the inner liner body 1.

[0039] During long-term use, the conductive rod 22 is effectively sealed by the first sealing ring 24. Even if a gap is formed between the conductive rod 22 and the insulating plug 23, the first sealing ring 24 seals and wraps around the conductive rod 22. The first sealing ring 24 forms an annular sealing area around the conductive rod 22 between the annular positioning part 221 and the inner wall of the insulating plug 23, thereby improving the installation sealing performance of the electronic anode 2 and effectively preventing water leakage.

[0040] In some embodiments, the annular positioning part 221 can be integrally machined with the conductive rod 22 to form an integral structure; or, the annular positioning part 221 is a separate component, which is sleeved on the conductive rod 22 and sealed and welded to the conductive rod 22.

[0041] In one embodiment, the end of the conductive rod extending beyond the insulating mounting base is further provided with a detachable locking component, which abuts against the outer surface of the insulating mounting base.

[0042] Specifically, the locking component is detachably mounted on the conductive rod and abuts against the insulating mounting base to complete the fixed installation of the conductive rod.

[0043] Specifically, the end of the conductive rod 22 extending out of the insulating mounting base 42 is provided with a threaded portion, and a locking nut 25 is threadedly connected to the threaded portion, the locking nut 25 abutting against the outer surface of the insulating mounting base 42.

[0044] Specifically, during the assembly process, the conductive rod 22 extends outward from the inside of the insulating plug 23 through the first through hole 232 to the outside of the insulating plug 23. Then, the locking nut 25 is threaded onto the threaded part of the conductive rod 22. After tightening the locking nut 25, the first sealing ring 24 is clamped between the sealing part and the annular positioning part 221.

[0045] In another embodiment, to meet the installation requirements of the insulating plug 23 and the mounting tube 11, the mounting tube 11 is provided with a first internal thread, and the insulating mounting seat 42 is provided with a first external thread, the insulating mounting seat 42 being threadedly connected to the mounting tube 11. Alternatively, the mounting tube 11 is provided with a second external thread, the mounting groove 231 is provided with a second internal thread, and the insulating mounting seat 42 is threadedly connected to the mounting tube 11.

[0046] Specifically, the insulating plug 23 and the mounting tube 11 are connected by threads, which provides better water resistance at the connection. Furthermore, a sealing gasket can be placed between the insulating plug 23 and the mounting tube 11 as needed to further improve the sealing performance.

[0047] In one embodiment of this application, the inner liner module includes two inner liner bodies 1, which are arranged vertically and interconnected. The mounting tube 11 is provided at the bottom of the inner liner body 1 located below, and the electrode rod 21 is arranged in the two inner liner bodies 1.

[0048] Specifically, the inner liner module adopts a dual-liner structure, while the electronic anode 2 is vertically arranged and installed on the mounting tube 11 through the insulating plug 23. The electrode rod 21 can simultaneously provide current-based corrosion protection for the two inner liner bodies 1 arranged vertically.

[0049] In another embodiment of this application, such as Figure 4 and Figure 5 As shown, the inner liner module also includes an anti-dry-burning detection component 4; the anti-dry-burning detection component 4 includes a metal probe 41 and an insulating mounting base 42; The metal probe 41 is disposed on the insulating mounting base 42, and the wiring end of the metal probe 41 extends to the outside of the insulating mounting base 42; The inner liner body 1 located at the top is provided with a mounting hole (unmarked), and the insulating mounting base 42 is disposed in the mounting hole; The metal probe 41 is arranged above the electric heating tube 3. The metal probe 41 is configured to connect to the electric control board of the electric water heater and trigger the electric control board to control the electric heating tube 3 to cut off power after it emerges from the water surface.

[0050] Specifically, in order to detect the liquid level in the inner tank body 1 and prevent the electric heating tube 3 from being exposed above the water surface due to the continuous drop in the water level in the inner tank body 1 caused by the hydrogen evolution of the electronic anode 2 during use, thus causing dry burning and safety hazards, an anti-dry burning detection component 4 is installed on the upper inner tank body 1.

[0051] The anti-dry-burning detection component 4 is fixedly installed on the inner tank body 1 via an insulating mounting base 42. A metal probe 41 extends into the inner tank body 1 and is electrically connected to the control board. The metal probe 41 forms a conductive circuit with the water in the inner tank body 1, the inner tank body 1, and the control board. When the water level in the inner tank body 1 is higher than the metal probe 41, current flows through the metal probe 41. During use, after the electric water heater is powered on and heated, the control board keeps the electric heating element 3 and the electronic anode 2 energized when it detects current in the metal probe 41.

[0052] After the liquid level in the inner tank 1 decreases, the metal probe 41 will first emerge above the water surface. At this time, because the metal probe 41 is above the water surface, it cannot form a conductive circuit. With the conductive circuit of the metal probe 41 broken, the electric water heater's control board de-energizes the electric heating element 3 and the electronic anode 2. Furthermore, since the electric heating element 3 remains below the water surface, it also prevents the electric heating element 3 from coming into contact with hydrogen gas accumulated at the top of the inner tank 1, thus avoiding an explosion and improving safety during use.

[0053] In one embodiment, the insulating mounting base 42 is provided with a second through hole 421, the metal probe 41 is provided with an annular baffle 411, the annular baffle 411 is arranged around the metal probe 41, and the metal probe 41 is also provided with a second sealing ring 43, the second sealing ring 43 being pressed between the annular baffle 411 and the insulating mounting base 42.

[0054] Specifically, in order to facilitate the sealing installation of the metal probe 41, a second sealing ring 43 is fitted on the outside of the metal probe 41. The annular baffle 411 presses the second sealing ring 43 onto the insulating mounting base 42. The second sealing ring 43 can effectively squeeze and wrap around the outer periphery of the metal probe 41. In addition, the second sealing ring 43 will also form an annular sealing area between the insulating mounting base 42 and the annular baffle 411 to prevent water leakage.

[0055] In another embodiment, as an alternative, the second sealing ring 43 can be pressed between the annular baffle 411 and the inner wall of the inner liner. Specifically, the second sealing ring 43 and the inner liner are sandwiched between the annular baffle 411 and the insulating mounting base 42, and the second sealing ring 43 will form an annular sealing area between the inner wall of the inner liner and the annular baffle 411 to prevent water leakage.

[0056] In another embodiment of this application, such as Figure 6 , Figure 7 and Figure 8 As shown, an installation part 12 is provided on the inner liner body 1 located at the top, and an inclined installation surface 13 is formed on the outer surface of the installation part 12, and an installation hole is provided on the inclined installation surface 13. The inclined mounting surface 13 is configured to support the metal probe 41, which is inclinedly arranged in the inner liner body 1. The portion of the metal probe 41 located in the inner liner, excluding the end of the metal probe 41, is covered with an insulating layer 44.

[0057] Specifically, in order to make the detection part of the metal probe 41 as close as possible to the top of the inner liner, an insulating layer 44 can be provided on the outside of the metal probe 41, and the insulating layer 44 does not cover the end of the metal probe 41. In this way, when installing the metal probe 41, the metal probe 41 can be installed at an angle in the inner liner body 1.

[0058] Specifically, an installation part 12 is provided on the flange 14 of the inner liner body 1, and an inclined installation surface 13 is provided on the installation part 12 so as to install the anti-dry burning detection component 4 at an angle using the inclined installation surface 13.

[0059] For the mounting part 12, an inclined mounting surface 13 is formed on the outer surface of the mounting part 12. After the operator fixes the anti-dry-burning detection component 4 to the mounting part 12, the inclined mounting surface 13 makes the anti-dry-burning detection component 4 extend upwards at an overall angle. The metal probe 41 is arranged at the top of the inner tank body 1. In this way, the fixed installation position of the anti-dry-burning detection component 4 can be effectively reduced, so that the mounting part 12 does not need to be arranged in the upper area of ​​the inner tank body 1, and the metal probe 41 can be arranged in the top area of ​​the inner tank body 1 to the maximum extent, reducing the height installation restriction of the anti-dry-burning detection component 4. At the same time, the end of the metal probe 41 is located at the highest point of the inner tank body 1 to detect the water level in time, ensuring that the power can be cut off in time after the water level drops.

[0060] During use, after the anti-dry-burn detection component 4 is powered on, the metal probe 41 contacts the water in the inner liner 1, forming a current loop with the electronic control board. During operation, the electronic anode 2 generates hydrogen gas, which accumulates continuously in the inner liner 1. As the hydrogen gas increases, the water level in the inner liner 1 decreases. When the water level in the inner liner 1 drops below the metal probe 41, the metal probe 41 is no longer in contact with the water, thus preventing it from being powered on. At this time, the electric heating tube 3 remains below the liquid surface in the inner liner 1, and it will not come into contact with the hydrogen gas at the top of the inner liner 1, preventing a hydrogen explosion.

[0061] At the same time, the control board configured in the electric water heater can actively cut off the power to the electric heating tube 3 after detecting that the anti-dry-burning detection component 4 is de-energized (such as detecting the voltage across the anti-dry-burning detection component 4 or the current of the anti-dry-burning detection component 4), so as to further ensure the safety of use.

[0062] In one embodiment, such as Figure 9 As shown, the mounting portion 12 is a protruding structure provided on the inner liner body 1, and the protruding structure is provided with the inclined mounting surface 13. Alternatively, as... Figure 10 As shown, the mounting part 12 is a recessed structure provided on the inner liner body 1, and the recessed structure is provided with the inclined mounting surface 13.

[0063] The metal probe 41 of the anti-dry-burning detection component 4 is arranged at an angle, so that the end of the metal probe 41 is located above the electric heating tube 3, and the fixed installation part 12 of the anti-dry-burning detection component 4 does not need to be set at the top of the inner tank body 1. In addition, the end of the metal probe 41 can be as close as possible to the top of the inner tank body 1, which provides more space for the installation height adjustment of the electric heating tube 3. The electric heating tube 3 can also be arranged at a higher position in the inner tank body 1, which satisfies the detection height installation requirements of the metal probe 41 and increases the installation range of the electric heating tube 3 in the inner tank.

[0064] In another embodiment of this application, a water heater is also provided, including a housing and an inner tank module as described in the above embodiments; the inner tank module is disposed in the housing.

[0065] 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.

[0066] 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. An inner liner module, characterized in that, include: An inner liner body, wherein an installation tube is provided on the inner liner body, the installation tube protruding from the inner liner body and communicating with the inner liner body; An electric heating element is disposed on the inner liner body and extends into the inner liner body; An electronic anode includes an electrode rod, a conductive rod, a first sealing ring, and an insulating plug. The conductive rod has an annular positioning part, the insulating plug has an installation groove, and the insulating plug also has a first through hole. The electrode rod is disposed on the conductive rod and electrically connected to the conductive rod. The conductive rod passes through the first through hole. The annular positioning part and the first sealing ring are located in the installation groove. The first sealing ring is sleeved on the conductive rod and pressed between the annular positioning part and the insulating plug. The insulating plug is sealed on the mounting tube, and the electrode rod is located in the inner liner body.

2. The inner liner module according to claim 1, characterized in that, The end of the conductive rod extending beyond the insulating mounting base is also provided with a detachable locking component, which abuts against the outer surface of the insulating mounting base.

3. The inner liner module according to claim 1, characterized in that, The mounting tube is provided with a first internal thread, and the insulating mounting seat is provided with a first external thread. The insulating mounting seat is threadedly connected to the mounting tube.

4. The inner liner module according to claim 1, characterized in that, The mounting tube is provided with a second external thread, and the mounting groove is provided with a second internal thread. The insulating mounting seat is threadedly connected to the mounting tube.

5. The inner liner module according to any one of claims 1-4, characterized in that, The inner liner module includes two inner liner bodies, which are arranged vertically and connected to each other. The mounting tube is located at the bottom of the inner liner body, and the electrode rod is arranged in the two inner liner bodies.

6. The inner liner module according to claim 5, characterized in that, It also includes a dry-burning prevention detection component; the dry-burning prevention detection component includes a metal probe and an insulating mounting base; The metal probe is disposed on the insulating mounting base, and the wiring end of the metal probe extends to the outside of the insulating mounting base; The inner liner body located at the top is provided with a mounting hole, and the insulating mounting base is disposed in the mounting hole; The metal probe is positioned above the electric heating element and is configured to connect to the electric control board of the electric water heater and trigger the electric control board to cut off the power to the electric heating element after it emerges from the water surface.

7. The inner liner module according to claim 6, characterized in that, The insulating mounting base is provided with a second through hole, and the metal probe is provided with an annular baffle arranged around the metal probe. The metal probe is also provided with a second sealing ring, which is pressed between the annular baffle and the insulating mounting base.

8. The inner liner module according to claim 6, characterized in that, The insulating mounting base is provided with a second through hole, and the metal probe is provided with an annular baffle arranged around the metal probe. The metal probe is also provided with a second sealing ring, which is pressed between the annular baffle and the inner wall of the inner liner.

9. The inner liner module according to claim 6, characterized in that, An installation part is provided on the inner liner body located at the top, the outer surface of the installation part forms an inclined installation surface, and an installation hole is provided on the inclined installation surface; The inclined mounting surface is configured to support the metal probe, which is inclinedly arranged in the inner liner body, and the portion of the metal probe located in the inner liner, excluding the end of the metal probe, is covered with an insulating layer.

10. An electric water heater, comprising a casing and an electronic control board, characterized in that, It also includes the inner liner module as described in any one of claims 1-9; The inner liner module is disposed in the outer shell, and the electronic control board is electrically connected to the electric heating tube and the electronic anode respectively.

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