Anti-corrosion assembly and water heater

Abstract

The utility model discloses a kind of anticorrosive assembly and water heater, it is related to water heater anticorrosion technical field.Anticorrosive assembly includes mounting joint, connecting piece and sacrificial anode, by setting the fixed connection of one end of connecting piece and mounting joint, the other end of connecting piece and sacrificial anode are connected, sacrificial anode is located inside inner bag, can replace inner bag and be oxidized corrosion preferentially.As the end of connecting piece protrudes from mounting joint, it is convenient for sacrificial anode and connecting piece installation or disassembly, it is also convenient to check the connection state of sacrificial anode and connecting piece, ensure the stability and reliability of connection.As connecting piece is equipped with one of threaded joint or threaded hole, and the other of threaded joint or threaded hole is equipped in sacrificial anode, and sacrificial anode further includes first actuating part, thus using spanner, screwdriver etc. rotate first actuating part, so that threaded joint and threaded hole connection can, simple structure, can conveniently install sacrificial anode, improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water heater corrosion prevention technology, and in particular to a corrosion prevention component and a water heater. Background Technology

[0002] A water heater's tank consists of an inner tank and an outer shell. The inner tank, located inside the outer shell, stores water. The inner tank is typically made of iron. Impurities in the water act as the cathode, while the iron acts as the anode, forming a galvanic cell that oxidizes and causes corrosion of the inner tank. To address this, a sacrificial anode, often a magnesium rod, is usually placed inside the inner tank. Magnesium is more reactive than iron and preferentially oxidizes as the anode, thus corroding the inner tank instead. Therefore, the magnesium rod needs to be replaced periodically. However, the connection between the magnesium rod and the mounting connector in related technologies is complex, leading to difficult disassembly and low efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an anti-corrosion component that facilitates the installation and removal of the sacrificial anode.

[0004] This utility model also proposes a water heater having the above-mentioned anti-corrosion components.

[0005] According to a first aspect of the present invention, an anti-corrosion component is used to connect to the inner liner of a water tank. The anti-corrosion component includes: a mounting joint for connecting to a mounting hole in the inner liner; a connector, one end of which is fixedly connected to the mounting joint, and the other end of which protrudes from the mounting joint along the axial direction of the mounting joint and is provided with one of a threaded joint or a threaded hole; and a sacrificial anode, one end of which is provided with the other of the threaded joint or the threaded hole. The sacrificial anode includes a first actuating part configured to be driven to rotate so that the threaded joint and the threaded hole are connected.

[0006] The corrosion-resistant component according to the embodiments of this utility model has at least the following beneficial effects:

[0007] By fixing one end of the connector to the mounting joint and the other end to the sacrificial anode, the corrosion protection component is installed into the inner tank of the water tank. The mounting joint connects to the mounting hole in the inner tank, and the sacrificial anode, located inside the inner tank, is preferentially oxidized and corroded, replacing the inner tank itself. Since one end of the connector protrudes from the mounting joint, it facilitates the installation and removal of the sacrificial anode and connector, and allows for easy inspection of their connection status, ensuring stability and reliability. When replacing the sacrificial anode, the connector typically does not need to be disassembled, reducing the number of parts to be replaced and lowering replacement costs. Furthermore, because the connector has either a threaded joint or a threaded hole, and the sacrificial anode has either a threaded joint or a threaded hole, and the sacrificial anode also includes a first actuating part, the first actuating part can be rotated using a wrench, screwdriver, or other tools to connect the threaded joint and the threaded hole. The corrosion protection component has a simple structure, facilitating the installation of the sacrificial anode and improving installation efficiency.

[0008] According to some embodiments of the present invention, the first actuation part includes two opposing first actuation surfaces, and the two first actuation surfaces are arranged circumferentially spaced along the sacrificial anode. The two first actuation surfaces are configured to engage with the tool and rotate under the drive of the tool.

[0009] According to some embodiments of the present invention, the first actuating surface is constructed as a plane.

[0010] According to some embodiments of the present invention, the end of the connector facing away from the sacrificial anode is provided with an external thread that connects to the mounting joint, and the end of the connector facing the sacrificial anode is provided with a second actuating part. The second actuating part includes two opposing second actuating surfaces, and the two second actuating surfaces are arranged circumferentially along the connector. The second actuating part is configured to be driven to rotate so as to drive the connector to rotate.

[0011] According to some embodiments of the present invention, the anti-corrosion component further includes an electronic anode, which passes through the sacrificial anode and the connector along the axial direction of the sacrificial anode and is connected to the mounting joint. An insulating layer is provided between the electronic anode, the sacrificial anode, and the connector. The mounting joint is made of insulating material.

[0012] According to some embodiments of the present invention, the anti-corrosion component further includes an electronic anode, one end of which is connected to the mounting joint and is spaced apart from the sacrificial anode along the radial direction of the sacrificial anode, and the mounting joint is made of insulating material.

[0013] According to some embodiments of this utility model, the anti-corrosion component further includes a controller, a switch, a first wire, a second wire, a third wire, a first conductive connector, and a second conductive connector. The first conductive connector is connected to the electronic anode. The connector is made of conductive material. The second conductive connector is connected to the connector. One end of the first wire is connected to the first conductive connector. One end of the second wire is connected to the second conductive connector. One end of the third wire is electrically connected to the inner liner. The controller and the switch are signal-connected. When the controller is powered on, the switch conducts the first wire and the third wire, and supplies power to the electronic anode through the first wire. When the controller is powered off, the switch conducts the second wire and the third wire.

[0014] According to some embodiments of the present invention, the anti-corrosion component further includes a conductive part and a third conductive connector connected together. The conductive part is connected to the mounting connector and is used for electrical connection with the inner liner. The third conductor is electrically connected to the third conductive connector.

[0015] According to some embodiments of the present invention, the conductive part is configured as a sleeve and sleeved on the mounting joint, and the outer peripheral wall of the conductive part is provided with external threads for connecting with the inner liner.

[0016] According to some embodiments of the present invention, one end of the electronic anode is provided with a mounting portion, the mounting portion and the mounting connector are fixedly connected, the end of the mounting portion away from the electronic anode is provided with a connection hole, and the anti-corrosion component further includes a fastener, the fastener passing through the first conductive connector and connected to the connection hole.

[0017] According to some embodiments of the present invention, the electronic anode is provided with an insulating layer, one end of the insulating layer extends to the end face of the mounting joint facing the sacrificial anode, and the other end of the insulating layer extends to the end of the sacrificial anode away from the mounting joint.

[0018] According to some embodiments of the present invention, the sacrificial anode is a magnesium rod; and / or the electronic anode is a titanium rod.

[0019] According to some embodiments of the present invention, the anti-corrosion component further includes an elastic washer, which is sleeved on the threaded joint and located between the sacrificial anode and the connector.

[0020] The water heater according to a second aspect of the present invention includes the corrosion-resistant component described in the above embodiment.

[0021] The water heater according to the embodiments of this utility model has at least the following beneficial effects:

[0022] By employing the anti-corrosion component of the first aspect embodiment, the anti-corrosion component is fixedly connected to the mounting joint at one end of a connector, and to the sacrificial anode at the other end. Therefore, when the anti-corrosion component is installed into the inner liner of the water tank, the mounting joint connects to the mounting hole in the inner liner, and the sacrificial anode, located inside the inner liner, is preferentially oxidized and corroded instead of the inner liner. Since one end of the connector protrudes from the mounting joint, it facilitates the installation or removal of the sacrificial anode and the connector, and also makes it easy to check the connection status of the sacrificial anode and the connector, ensuring the stability and reliability of the connection. When replacing the sacrificial anode, the connector usually does not need to be disassembled, reducing the number of parts to be replaced and lowering replacement costs. Furthermore, since the connector has one of a threaded joint or a threaded hole, and the sacrificial anode has the other of a threaded joint or a threaded hole, and the sacrificial anode also includes a first actuating part, the first actuating part can be rotated using a wrench, screwdriver, or other tools to connect the threaded joint and the threaded hole. This simple structure facilitates the installation of the sacrificial anode and improves installation efficiency.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of an anti-corrosion component according to an embodiment of the present invention;

[0026] Figure 2 This is an exploded view of a magnesium rod and connector according to an embodiment of the present invention;

[0027] Figure 3 This is a cross-sectional view of an anti-corrosion component according to an embodiment of this utility model;

[0028] Figure 4 This is a partially exploded view of the anti-corrosion component according to one embodiment of the present invention;

[0029] Figure 5 This is an exploded view of an anti-corrosion component according to an embodiment of the present invention;

[0030] Figure 6 This is a partial structural schematic diagram of the electronic anode of one embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the anti-corrosion component according to another embodiment of the present invention;

[0032] Figure 8 This is a cross-sectional view of an anti-corrosion component according to another embodiment of the present invention;

[0033] Figure 9 This is an exploded view of the anti-corrosion component according to another embodiment of the present invention;

[0034] Figure 10 This is a simplified schematic diagram of the connection between the anti-corrosion component and the inner liner, and the operation of the titanium rod, according to one embodiment of this utility model.

[0035] Figure 11 This is a simplified schematic diagram of the anti-corrosion component and the inner liner connected and the magnesium rod working according to one embodiment of the present invention;

[0036] Figure 12 This is a partial structural schematic diagram of an anti-corrosion component according to an embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the structure of an installation connector according to an embodiment of the present invention;

[0038] Figure 14 This is a schematic diagram of the connection between the conductive part and the third conductive connector in one embodiment of the present invention.

[0039] Figure label:

[0040] Corrosion-resistant components 1000;

[0041] Mounting connector 100; nut part 120; baffle 130; threaded part 140; metal sleeve 141; sealing ring 150; conductive part 160; third conductive connector 170; mounting hole 180; metal insert 181;

[0042] Connector 200; Second actuating part 210; Second actuating surface 211; Threaded hole 220; Rod-shaped part 230;

[0043] Magnesium rod 300; first actuating part 310; first actuating surface 311; second conductive connector 320; elastic washer 330; threaded connector 340;

[0044] Titanium rod 400; insulating layer 410; first conductive connector 420; mounting part 430; connecting hole 431; fastener 440;

[0045] Controller 500; Switch 510; First wire 520; Second wire 530; Third wire 540;

[0046] Inner liner 600. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0048] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0049] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0050] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0051] A water heater's tank consists of an outer shell and an inner tank. The inner tank is located inside the outer shell, and an insulation layer is installed between the two. The inner tank is made of iron-based material and is used to store water. Since water usually contains impurities and dissolved oxygen, it creates an electrolyte environment. For example, calcium and magnesium deposits among the impurities act as the cathode, while the inner tank acts as the anode, forming a micro-battery. This causes the inner tank to oxidize and corrode, and in severe cases, the inner tank may perforate and leak. Therefore, a magnesium rod is installed inside the inner tank. Because magnesium is more reactive than iron, it preferentially acts as the anode and is oxidized, thus corroding the inner tank instead. Therefore, the magnesium rod needs to be replaced periodically.

[0052] To improve the efficiency of disassembling and assembling magnesium rod 300, refer to Figure 1 and Figure 2As shown, an anti-corrosion component 1000 of this utility model can be used in the inner liner 600 of a water tank to reduce corrosion of the inner liner 600. The anti-corrosion component 1000 of this utility model includes a mounting joint 100, a connector 200, and a sacrificial anode. The mounting joint 100 is used to connect to the mounting hole of the inner liner 600, and the connection method can be snap-fit, threaded connection, etc. One end of the connector 200 is fixedly connected to the mounting joint 100, and the fixed connection method can be snap-fit, threaded connection, adhesive connection, riveting connection, etc. For example, see... Figure 3 and Figure 4 As shown, the connector 200 is fitted with a sealing ring 150, which abuts against the shoulder of the connector 200 and the end face of the mounting joint 100, preventing water from seeping out from the gap between the connector 200 and the mounting joint 100. The other end of the connector 200 protrudes axially from the mounting joint 100, and is provided with either a threaded connector 340 or a threaded hole 220. The sacrificial anode is rod-shaped and can be a magnesium rod 300, a zinc alloy rod, an aluminum alloy rod, etc. All subsequent embodiments will be explained using a magnesium rod 300 as an example. One end of the magnesium rod 300 is provided with either a threaded connector 340 or a threaded hole 220; for example, the connector 200 has a threaded hole 220, and the magnesium rod 300 has a threaded connector 340. The magnesium rod 300 includes a first actuating part 310, which is configured to be driven to rotate, thereby connecting the threaded joint 340 of the magnesium rod 300 to the threaded hole 220 of the connector 200.

[0053] Understandably, by adopting the above scheme, with one end of the connector 200 fixedly connected to the mounting joint 100 and the other end connected to the magnesium rod 300, when the anti-corrosion component 1000 is installed into the inner tank 600 of the water tank, the mounting joint 100 connects to the mounting hole of the inner tank 600, and the magnesium rod 300, located inside the inner tank 600, can preferentially undergo oxidation and corrosion instead of the inner tank 600. Since one end of the connector 200 protrudes from the mounting joint 100, it facilitates the installation or removal of the magnesium rod 300 and the connector 200, and also makes it easy to check the connection status of the magnesium rod 300 and the connector 200, ensuring the stability and reliability of the connection. When replacing the magnesium rod 300, the connector 200 usually does not need to be disassembled, reducing the number of parts to be replaced and lowering replacement costs. Meanwhile, since the connector 200 is provided with one of the threaded joint 340 or the threaded hole 220, and the magnesium rod 300 is provided with the other of the threaded joint 340 or the threaded hole 220, and the magnesium rod 300 also includes a first actuating part 310, the first actuating part 310 can be rotated using tools such as wrenches and screwdrivers to connect the threaded joint 340 and the threaded hole 220. The structure is simple, which can facilitate the installation of the magnesium rod 300 and improve the installation efficiency.

[0054] Reference Figure 3 As shown in the embodiment of this utility model, the first actuating part 310 includes two opposing first actuating surfaces 311, which are spaced apart along the circumference of the magnesium rod 300. The first actuating surface 311 can be a plane, a concave arc surface, etc. It is understood that the magnesium rod 300 is usually cylindrical to increase the contact area between the magnesium rod 300 and water, improve the reaction rate, and thus release magnesium ions more efficiently. At the same time, the cylindrical magnesium rod 300 is easier to process and has better structural stability. Therefore, in order to facilitate the connection of the threaded joint 340 of the magnesium rod 300 to the threaded hole 220, two opposing first actuating surfaces 311 can be machined on the side wall of one end of the magnesium rod 300. Since only two first actuating surfaces 311 need to be machined, the process is simple and has minimal impact on the overall structure of the magnesium rod 300. It also facilitates the use of tools like wrenches with the two first actuating surfaces 311; for example, the jaws of a wrench can engage with the two first actuating surfaces 311 to rotate the magnesium rod 300, which is beneficial for connecting the threaded connector 340 and the threaded hole 220, improving installation efficiency. Alternatively, the first actuating part 310 can also have a hexagonal countersunk groove, Phillips head countersunk groove, etc., at the end of the magnesium rod 300 away from the connector 200, making it convenient to rotate the magnesium rod 300 with tools like screwdrivers or Allen wrenches. Alternatively, the first actuating part 310 can also be constructed in the shape of a nut; the appropriate configuration can be selected based on the specific circumstances.

[0055] Reference Figure 4 As shown in the embodiment of this utility model, the connector 200 includes a second actuating part 210 and a rod-shaped part 230. One end of the second actuating part 210 and the rod-shaped part 230 are connected. The second actuating part 210 is positioned towards the magnesium rod 300, and the rod-shaped part 230 is positioned towards the mounting joint 100. The rod-shaped part 230 is provided with external threads to facilitate threaded connection between the rod-shaped part 230 and the mounting joint 100. The second actuating part 210 includes two opposing second actuating surfaces 211, which are spaced apart circumferentially along the connector 200. The second actuating surfaces 211 can be flat, concave, or curved. The second actuating part 210 is configured to be driven to rotate, for example, by engaging the jaws of a wrench with the two second actuating surfaces 211 to drive the connector 200 to rotate, allowing the rod-shaped part 230 to be smoothly connected to the mounting joint 100, thereby improving the installation efficiency of the connector 200. When the connector 200 needs to be replaced later, the replacement of the connector 200 is also simple and convenient because the second actuation part 210 is provided.

[0056] Continue to refer to Figure 4As shown in the embodiment of this utility model, the mounting connector 100 includes a nut portion 120, a baffle 130, and a threaded portion 140. The baffle 130 is connected between the nut portion 120 and the threaded portion 140. The threaded portion 140 is threadedly connected to the mounting hole of the inner liner 600. The nut portion 120 can rotate the threaded portion 140 together under the external force of a wrench, thereby allowing the threaded portion 140 to be smoothly connected to or removed from the mounting hole. It should be noted that the threaded portion 140 includes a metal sleeve 141 with external threads. The metal sleeve 141 is made of metal materials, such as copper, aluminum, or stainless steel, which can improve the overall strength of the threaded portion 140 and reduce the risk of leakage due to damage. The baffle 130 is used to abut and position itself against the inner liner 600, determining the relative position between the mounting connector 100 and the inner liner 600 during installation, thereby improving installation efficiency.

[0057] Since the inner liner 600 only has a magnesium rod 300, the magnesium rod 300 needs to be replaced periodically. To reduce the replacement frequency of the magnesium rod 300, refer to... Figure 3 and Figure 5 As shown in the embodiments of this utility model, the anti-corrosion component 1000 further includes an electronic anode, which is rod-shaped and can be a titanium rod 400, a mixed metal oxide anode rod, a rare earth material rod, etc. All subsequent embodiments will be explained using the titanium rod 400 as an example. The titanium rod 400 passes through the magnesium rod 300 and the connector 200 along the axial direction of the magnesium rod 300 and is connected to the mounting joint 100. An insulating layer 410 is provided between the titanium rod 400, the magnesium rod 300, and the connector 200 to prevent the titanium rod 400 from being directly electrically connected to the magnesium rod 300 and the connector 200, thereby blocking the spontaneous formation of a galvanic cell by magnesium and titanium and preventing the unexpected consumption of the magnesium rod 300. The mounting joint 100 is made of an insulating material, such as plastic, rubber, silicone, etc., to prevent the magnesium rod 300 from being directly electrically connected to the inner liner 600. It should be noted that avoiding direct electrical connection between magnesium rod 300 and inner liner 600 means that magnesium rod 300 cannot be electrically connected to inner liner 600 through mounting connector 100, in order to prevent magnesium rod 300 from being continuously oxidized as an anode.

[0058] In this system, the titanium rod 400 acts as the electron anode when current is applied, while the inner liner 600 acts as the cathode. The titanium rod 400 only serves to transfer electrons and is not consumed. The electrons transferred through the titanium rod 400 replace the electrons lost by the inner liner 600, thus reacting with impurities in the water. Therefore, when the titanium rod 400 is energized, corrosion of the inner liner 600 is effectively prevented. Furthermore, because the mounting connector 100 is made of insulating material, and the magnesium rod 300 and the inner liner 600 do not have a direct electrical connection, the magnesium rod 300 will not corrode when the titanium rod 400 is active. When the titanium rod 400 is de-energized, to protect the inner liner 600 from corrosion, the magnesium rod 300 and the inner liner 600 need to be electrically connected via a wire to form a galvanic cell, where the magnesium rod 300 is preferentially corroded instead of the inner liner 600. Therefore, when the titanium rod 400 is energized, the magnesium rod 300 and the inner liner 600 are essentially not corroded. When the titanium rod 400 is de-energized, the automatic switching of the switch 510 allows the magnesium rod 300 to be electrically connected to the inner liner 600 via a wire, and the magnesium rod 300 is preferentially corroded instead of the inner liner 600. The presence of the electronic anode effectively extends the service life of the magnesium rod 300, reducing its replacement frequency and lowering operating costs. Furthermore, since both the titanium rod 400 and the magnesium rod 300 are connected to the same mounting connector 100, the need for drilling holes in the inner liner 600 is reduced; only one mounting hole is required to install both the titanium rod 400 and the magnesium rod 300 simultaneously, improving installation efficiency and reducing the risk of leakage.

[0059] Reference Figure 5 and Figure 10 As shown in the embodiment of this utility model, the anti-corrosion component 1000 further includes a controller 500, a switch 510, a first wire 520, a second wire 530, a third wire 540, a first conductive connector 420, and a second conductive connector 320. The first conductive connector 420 is connected to the titanium rod 400. The connector 200 is made of conductive material, and the second conductive connector 320 is connected to the connector 200, thus the connector 200 can be electrically connected to the magnesium rod 300. One end of the first wire 520 is connected to the first conductive connector 420, one end of the second wire 530 is connected to the second conductive connector 320, and one end of the third wire 540 is electrically connected to the inner liner 600. For example, a conductive screw can be provided on the inner liner 600, and the third wire 540 can then be connected to the screw, thereby achieving an electrical connection between the third wire 540 and the inner liner 600. The controller 500 and switch 510 are connected by a signal. When the controller 500 is powered on, the switch 510 conducts the first wire 520 and the third wire 540, and supplies power to the titanium rod 400 through the first wire 520, thereby preventing corrosion of the inner liner 600. (Refer to...) Figure 11As shown, when the controller 500 is powered off, for example, when the power needs to be cut off for a long time when leaving home, or when there is an unexpected power outage, the switch 510 automatically connects the second wire 530 and the third wire 540, so that the magnesium rod 300 is electrically connected to the inner liner 600 through the second wire 530 and the third wire 540, forming a galvanic cell, thereby replacing the inner liner 600 and being preferentially corroded.

[0060] In related technologies, to facilitate the connection between the third conductor 540 and the inner liner 600, a process of welding screws to the wall of the inner liner 600 needs to be added to the production line during the manufacturing stage, resulting in reduced production efficiency. To improve production efficiency, refer to... Figure 12 , Figure 13 and Figure 14 As shown in the embodiment of this utility model, the anti-corrosion component 1000 further includes a conductive part 160 and a third conductive connector 170 connected to each other. The conductive part 160 is connected to the mounting connector 100 and is used for electrical connection with the inner liner 600. The third wire 540 is electrically connected to the third conductive connector 170. By setting the conductive part 160 on the mounting connector 100, no additional welding process is required to weld the screws to the inner liner 600, which can improve production efficiency and simplify assembly steps. When the mounting connector 100 is installed, the conductive part 160 is also installed. Subsequently, the third wire 540 is connected to the third conductive connector 170, so that the third wire 540 is electrically connected to the inner liner 600 through the third conductive connector 170 and the conductive part 160.

[0061] Reference Figure 13 and Figure 14 As shown in the embodiment of this utility model, the conductive part 160 is sleeve-shaped and sleeved on the mounting joint 100. The third conductive joint 170 is fixedly connected to one end of the conductive part 160 along the axial direction. For example, the third conductive joint 170 is bent and one end is welded to the conductive part 160. The conductive part 160 and the mounting joint 100 are fixedly connected. For example, the mounting joint 100 can be made of plastic material by integral injection molding. At the same time, the mounting joint 100 and the conductive part 160 are connected during the integral molding process, which can simplify the production of the mounting joint 100 and improve efficiency. The outer peripheral wall of the conductive part 160 is provided with external threads, so that the mounting joint 100 is threadedly connected to the inner liner 600 through the external threads of the conductive part 160. The conductive part 160 can be made of metal, such as copper alloy or aluminum alloy, which can improve the overall strength when connected to the inner liner 600 and reduce the risk of leakage due to damage. At the same time, copper alloy and aluminum alloy also have good conductivity, which is beneficial to the electrical connection between the third wire 540 and the inner liner 600.

[0062] Reference Figure 3 , Figure 5 , Figure 6 and Figure 8As shown in the embodiment of this utility model, one end of the titanium rod 400 is provided with a mounting part 430, and the mounting part 430 is fixedly connected to the mounting connector 100. For example, the mounting part 430 is bolt-shaped, and the mounting connector 100 is provided with an assembly hole 180. A plastic thread can be formed in the assembly hole 180, or a metal thread can be formed in the form of a metal insert 181. The mounting part 430 and the assembly hole 180 of the mounting connector 100 are threadedly connected. The use of a metal insert 181 in the assembly hole 180 of the mounting connector 100 can reduce thread deformation and wear, and improve the stability and reliability of the connection of the mounting part 430. Therefore, the installation of the titanium rod 400 is simple and convenient, with high installation efficiency, and the connection has good stability and high reliability. The mounting portion 430 has a connecting hole 431 at the end opposite to the titanium rod 400. The anti-corrosion component 1000 also includes a fastener 440, which can be a screw. The screw passes through the first conductive connector 420 and connects to the connecting hole 431, so that the first conductive connector 420 is fixedly connected to the mounting portion 430. This solution can effectively fix the position of the first conductive connector 420, and the installation is simple and convenient. The second conductive connector 320 can also be sleeved on the mounting portion 430 and spaced apart from the mounting portion 430. An insulating washer is provided between the mounting portion 430 and the second conductive connector 320 to prevent the second conductive connector 320 from being electrically connected to the mounting portion 430. At the same time, the second conductive connector 320 also abuts against the end of the connector 200, thereby being electrically connected to the magnesium rod 300 through the connector 200.

[0063] Reference Figure 2 and Figure 3 As shown in the embodiment of this utility model, the anti-corrosion component 1000 further includes an elastic washer 330, which is sleeved on the threaded joint 340 and located between the magnesium rod 300 and the connector 200. Since the titanium rod 400 is axially inserted through the connector 200 and the magnesium rod 300, to prevent water inside the inner liner 600 from seeping out through the gaps between the connector 200 and the magnesium rod 300, and between the titanium rod 400 and the connector 200, an elastic washer 330 is provided between the connector 200 and the magnesium rod 300. The elastic washer 330 seals the gaps between the magnesium rod 300 and the connector 200, thereby preventing water from seeping out through the gaps between the connector 200 and the magnesium rod 300, thus improving the waterproof performance of the anti-corrosion component 1000. Meanwhile, since the elastic washer 330 is also elastic, it can provide a pre-tightening force that separates the connector 200 and the magnesium rod 300 from each other, thereby reducing the possibility of loosening of the connection between the connector 200 and the magnesium rod 300 and improving the stability and reliability of the connection between the connector 200 and the magnesium rod 300.

[0064] Because the titanium rod 400 passes through the magnesium rod 300, when the magnesium rod 300 needs to be replaced, a new magnesium rod 300 needs to be fitted onto the titanium rod 400, which increases the difficulty of installing the magnesium rod 300. To further reduce the difficulty of installing the magnesium rod 300, refer to... Figure 7 and Figure 8 As shown, in another embodiment of this utility model, one end of the titanium rod 400 is connected to the mounting joint 100 and is spaced apart from the magnesium rod 300 along its radial direction. The mounting joint 100 is made of insulating material to restrict the magnesium rod 300 from being electrically connected to the inner liner 600 through the mounting joint 100. It is understood that because the magnesium rod 300 and the titanium rod 400 are spaced apart, the titanium rod 400 does not significantly affect the assembly and disassembly of the magnesium rod 300, nor is it necessary to insert the titanium rod 400 into the magnesium rod 300, thereby further simplifying the assembly and disassembly of the magnesium rod 300 and improving assembly and disassembly efficiency.

[0065] Although titanium rod 400 and magnesium rod 300 are spaced apart, their relatively long lengths can lead to direct contact between them if installation precision is insufficient or after prolonged use. To avoid this direct contact and potential abnormal wear of magnesium rod 300, refer to... Figure 7 and Figure 8 As shown in the embodiment of this utility model, the titanium rod 400 is fitted with an insulating layer 410. One end of the insulating layer 410 extends to the end face of the mounting joint 100 facing the magnesium rod 300, and the other end of the insulating layer 410 extends to the end of the magnesium rod 300 away from the mounting joint 100. Therefore, even if the titanium rod 400 is tilted towards the magnesium rod 300, it can be isolated by the insulating layer 410, thereby avoiding direct electrical connection between the magnesium rod 300 and the titanium rod 400, thus preventing abnormal consumption of the magnesium rod 300 and improving the rationality and reliability of the anti-corrosion component 1000 structural design.

[0066] This utility model discloses a water heater according to one embodiment, including the anti-corrosion component 1000 described in the above embodiments. The water heater can be an electric water heater, a solar water heater, etc. The water heater of this utility model uses the anti-corrosion component 1000 described in the above embodiments. One end of the connector 200 is fixedly connected to the mounting joint 100, and the other end of the connector 200 is connected to the magnesium rod 300. Therefore, when the anti-corrosion component 1000 is installed into the inner tank 600 of the water tank, the mounting joint 100 connects to the mounting hole of the inner tank 600, and the magnesium rod 300 is located inside the inner tank 600, thus taking the place of the inner tank 600 and being preferentially oxidized and corroded. Since one end of the connector 200 protrudes from the mounting joint 100, it is convenient to install or remove the magnesium rod 300 and the connector 200, and it is also convenient to check the connection status of the magnesium rod 300 and the connector 200, ensuring the stability and reliability of the connection. When replacing the magnesium rod 300, the connector 200 usually does not need to be disassembled, which can reduce the number of replacement parts and lower replacement costs. Meanwhile, since the connector 200 is provided with one of the threaded joint 340 or the threaded hole 220, and the magnesium rod 300 is provided with the other of the threaded joint 340 or the threaded hole 220, and the magnesium rod 300 also includes a first actuating part 310, the first actuating part 310 can be rotated using tools such as wrenches and screwdrivers to connect the threaded joint 340 and the threaded hole 220. The structure is simple, which can facilitate the installation of the magnesium rod 300 and improve the installation efficiency.

[0067] Since the water heater adopts all the technical solutions of the anti-corrosion component 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0068] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An anti-corrosion assembly for connection with a liner of a water tank, characterized in that, The corrosion-resistant component includes: The mounting connector is used to connect to the mounting hole of the inner liner; A connector, one end of which is fixedly connected to the mounting joint, and the other end of which protrudes from the mounting joint along the axial direction of the mounting joint, and is provided with either a threaded joint or a threaded hole; The sacrificial anode has one end provided with the threaded connector or the other of the threaded holes. The sacrificial anode includes a first actuation part configured to be driven to rotate so as to connect the threaded connector and the threaded hole.

2. The corrosion protection assembly of claim 1, wherein: The first actuation unit includes two opposing first actuation surfaces, which are arranged circumferentially spaced along the sacrificial anode. The two first actuation surfaces are configured to engage with the tool and rotate under the drive of the tool.

3. The corrosion protection assembly of claim 2, wherein: The first actuation surface is constructed as a plane.

4. The corrosion-resistant component according to claim 1 or 2, characterized in that: The connector has an external thread at the end facing away from the sacrificial anode that connects to the mounting joint. The connector has a second actuation part at the end facing the sacrificial anode. The second actuation part includes two opposing second actuation surfaces, which are spaced apart circumferentially along the connector. The second actuation part is configured to be driven to rotate so as to drive the connector to rotate.

5. The corrosion-resistant component according to claim 1, characterized in that: The corrosion protection component also includes an electronic anode, which passes through the sacrificial anode and the connector along the axial direction of the sacrificial anode and is connected to the mounting joint. An insulating layer is provided between the electronic anode, the sacrificial anode, and the connector. The mounting joint is made of insulating material.

6. The corrosion-resistant component according to claim 1, characterized in that: The corrosion protection component also includes an electronic anode, one end of which is connected to the mounting joint and is spaced apart from the sacrificial anode along the radial direction of the sacrificial anode. The mounting joint is made of insulating material.

7. The corrosion-resistant component according to claim 5 or 6, characterized in that: The corrosion-resistant component further includes a controller, a switch, a first wire, a second wire, a third wire, a first conductive connector, and a second conductive connector. The first conductive connector is connected to the electronic anode. The connector is made of conductive material. The second conductive connector is connected to the connector. One end of the first wire is connected to the first conductive connector. One end of the second wire is connected to the second conductive connector. One end of the third wire is electrically connected to the inner liner. The controller and the switch are signal-connected. When the controller is powered on, the switch conducts the first wire and the third wire, and supplies power to the electronic anode through the first wire. When the controller is powered off, the switch connects the second wire and the third wire.

8. The corrosion-resistant component according to claim 7, characterized in that: The corrosion-resistant component also includes a conductive part and a third conductive connector connected together. The conductive part is connected to the mounting connector and is used for electrical connection with the inner liner. The third conductor is electrically connected to the third conductive connector.

9. The corrosion-resistant component according to claim 8, characterized in that: The conductive part is configured as a sleeve and fitted onto the mounting joint, and the outer peripheral wall of the conductive part is provided with external threads for connection with the inner liner.

10. The corrosion-resistant component according to claim 7, characterized in that: One end of the electronic anode is provided with a mounting part, the mounting part and the mounting connector are fixedly connected, and the end of the mounting part away from the electronic anode is provided with a connection hole. The anti-corrosion component also includes a fastener, the fastener is inserted through the first conductive connector and connected to the connection hole.

11. The corrosion-resistant component according to claim 6, characterized in that: The electronic anode is fitted with an insulating layer, one end of which extends to the end face of the mounting connector facing the sacrificial anode, and the other end of which extends to the end of the sacrificial anode away from the mounting connector.

12. The corrosion-resistant component according to claim 5 or 6, characterized in that: The sacrificial anode is a magnesium rod; and / or the electronic anode is a titanium rod.

13. The corrosion-resistant component according to claim 1, characterized in that: The corrosion protection component also includes an elastic washer, which is fitted onto the threaded joint and located between the sacrificial anode and the connector.

14. A water heater, characterized in that: Includes the corrosion-resistant components as described in any one of claims 1 to 13.

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