Electric heating assembly and water heater

Abstract

The embodiment of the utility model provides an electric heating assembly and a water heater, and the electric heating assembly comprises an electric heating tube, an electronic anode, a magnesium rod and a mounting seat; the magnesium rod comprises a magnesium rod body and a connecting piece, and the connecting piece is arranged at one end of the magnesium rod body in the length direction. And the electric heating tube, the electronic anode and the connecting piece are respectively connected with the mounting seat. The electric heating assembly can improve the anti-corrosion effect and is easy to assemble.

Description

Technical Field

[0001] The present application relates to the technical field of water heaters, and in particular to an electric heating component and a water heater. Background Art

[0002] In the related art, in order to extend the service life of the inner tank of the water heater, a magnesium rod is generally installed in the inner tank of the water heater for self-consumption anti-corrosion. However, the service life of the magnesium rod is generally only 2 years, and the magnesium rod is worn out quickly, and needs to be replaced and repaired regularly. If it is not replaced in time, it is very easy to cause corrosion and rust of the inner tank, thus affecting the anti-corrosion effect. Utility Model Content

[0003] In view of this, the embodiments of the present application hope to provide an electric heating component and a water heater that can improve the anti-corrosion effect and are easy to assemble.

[0004] To achieve the above object, an embodiment of the present application provides an electric heating component, including:

[0005] Electric heating tube;

[0006] Electronic anode;

[0007] A magnesium rod, comprising a magnesium rod body and a connecting piece, wherein the connecting piece is arranged at one end of the magnesium rod body along the length direction;

[0008] A mounting seat, the electric heating tube, the electronic anode and the connecting piece are respectively connected to the mounting seat.

[0009] In one embodiment, the magnesium rod body is detachably connected to the connecting piece; and / or the connecting piece is detachably connected to the mounting seat.

[0010] In one embodiment, the connecting member includes a connecting portion and a fixing portion, the connecting portion is connected to the magnesium rod body, and the fixing portion is located on a side of the connecting portion away from the magnesium rod body and is connected to the mounting seat.

[0011] In one embodiment, the magnesium rod further includes a first insulating sealing sleeve, which is sleeved on a partial structure of the magnesium rod body and an outer peripheral side of the connecting portion.

[0012] In one embodiment, the outer dimensions of the connecting portion are greater than those of the fixing portion, and the first insulating sealing sleeve includes an annular side wall and an end wall with an opening, the annular side wall surrounds the outer circumference of the connecting portion and a partial structure of the magnesium rod body, the end wall is located on the side of the connecting portion away from the magnesium rod body, and the fixing portion is inserted through the opening.

[0013] In one embodiment, the mounting seat has a first mounting opening, and the fixing portion is inserted into the first mounting opening;

[0014] The end wall has a first annular protrusion on one side close to the mounting seat, and the first annular protrusion is in sealing contact with the mounting seat; and / or,

[0015] The magnesium rod further comprises a second insulating sealing sleeve sleeved on the outer peripheral side of the fixing portion, wherein the second insulating sealing sleeve is passed through the first mounting opening and is in sealing contact with the mounting seat.

[0016] In one embodiment, the magnesium rod includes the second insulating sealing sleeve, which includes a sleeve portion sleeved on the outer peripheral side of the fixed portion and a third annular protrusion arranged on the outer peripheral side of the sleeve portion, and the third annular protrusion is located on the side of the mounting seat away from the connecting portion and is in sealing contact with the mounting seat.

[0017] In one embodiment, a side of the end wall close to the connecting portion has a second annular protrusion, and the second annular protrusion is in sealing contact with the connecting portion.

[0018] In one embodiment, the electronic anode includes a titanium rod, a mounting joint and a metal oxide layer, the titanium rod includes a first section and a second section arranged along one end of the first section, the first section is passed through a through hole of the mounting joint, the metal oxide layer is coated on the outer surface of the second section, and the mounting joint is connected to the mounting seat.

[0019] In one embodiment, the mounting seat includes a seat body and a magnesium rod joint, the seat body has a first mounting hole, the magnesium rod joint has a magnesium rod mounting hole, the magnesium rod joint is inserted into the first mounting hole and connected to the seat body, the connecting piece is inserted into the magnesium rod mounting hole and is detachably connected to the magnesium rod joint; and / or,

[0020] The mounting seat includes a seat body and an electronic anode connector, the seat body has a second mounting hole, the electronic anode connector has an electronic anode mounting hole, the electronic anode connector is inserted into the second mounting hole and connected to the seat body, the electronic anode is inserted into the electronic anode mounting hole and is detachably connected to the electronic anode.

[0021] In one embodiment, the electric heating assembly further includes a temperature detection blind tube, and the temperature detection blind tube is connected to the mounting seat.

[0022] Another embodiment of the present application provides a water heater, comprising:

[0023] An inner tank having a water storage cavity;

[0024] The electric heating assembly described above, the mounting seat is installed on the inner tank, and the electric heating tube, the electronic anode and the magnesium rod body extend into the water storage cavity;

[0025] A control device is provided, wherein the control device is connected to the electronic anode, the magnesium rod and the inner tank through wires, so that when the power is on, the electronic anode, the inner tank and the water in the water storage chamber form a first electronic circuit, and when the power is off or the electronic anode fails, the magnesium rod, the inner tank and the water in the water storage chamber form a second electronic circuit.

[0026] The electric heating assembly of the embodiment of the present application is provided with a magnesium rod and an electronic anode. When the water heater is powered on, the inner tank loses electrons by applying an external current to the electronic anode, which can play a good anti-corrosion protection role on the inner tank, and the magnesium rod does not participate in the anti-corrosion protection. Therefore, the magnesium rod body in the magnesium rod will hardly be lost. When the water heater is powered off or the electronic anode fails, the magnesium rod body in the magnesium rod is used as a sacrificial anode to protect the inner tank. That is to say, when the water heater is powered off or the electronic anode fails, the magnesium rod will be used to protect the inner tank from corrosion. Compared with the method of only using magnesium rods for anti-corrosion protection in the related art, the electric heating assembly of the embodiment of the present application can not only reduce the loss of magnesium rods, but also provide better anti-corrosion protection for the inner tank in the power-on and power-off states, thereby improving the anti-corrosion effect. In addition, the electric heating pipe, the electronic anode and the magnesium rod are all arranged on the mounting seat, and the magnesium rod is connected to the mounting seat by a connector, which is not only convenient for assembling the electric heating pipe, the electronic anode and the magnesium rod to the inner tank through the mounting seat, but also can improve the stability of the connection with the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of an electric heating component provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the mounting base shown;

[0029] Figure 3 for Figure 2 AA section view;

[0030] Figure 4 for Figure 1 Schematic diagram of the structure of the magnesium rod shown;

[0031] Figure 5 for Figure 4 BB cross-sectional view;

[0032] Figure 6 for Figure 1 The schematic diagram of the structure of the electronic anode shown;

[0033] Figure 7 A circuit connection diagram of a water heater provided in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 100, electric heating assembly; 10, mounting seat; 10a, first mounting opening; 10b, avoidance opening; 11, seat body; 111, flange; 12, magnesium rod joint; 12a, magnesium rod mounting hole; 13, electronic anode joint; 13a, electronic anode mounting hole; 20, magnesium rod; 21, magnesium rod body; 211, rod core; 212, rod body; 22, connector; 221, connecting part; 222, fixing part; 23, first insulating sealing sleeve; 231, annular side wall; 232, end wall; 2321, first annular protrusion; 2322, second annular protrusion shaped protrusion; 24, second insulating sealing sleeve; 241, sleeve connection; 242, third annular protrusion; 25, first nut; 26, magnesium rod tab; 30, electronic anode; 31, titanium rod; 311, first section; 312, second section; 32, mounting joint; 321, extension; 322, mounting portion; 33, metal oxide layer; 34, sealing ring; 35, electronic anode tab; 36, second nut; 40, electric heating tube; 50, temperature detection blind tube; 200, liner; 300, control device; 310, electric control box; 320, main circuit board. DETAILED DESCRIPTION

[0036] In the description of the embodiments of the present application, it should be noted that the term "length direction" is based on the attached Figure 1 The orientation or position relationship shown. These orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] The present application embodiment provides a water heater. Figure 1 and Figure 7 The water heater includes an inner tank 200, an electric heating component 100 and a control device 300.

[0038] The type of water heater is not limited. For example, the water heater can be a heat pump water heater or an electric water heater.

[0039] See also Figure 1 , Figure 4 and Figure 5 The electric heating assembly of the embodiment of the present application includes an electric heating tube 40, an electronic anode 30, a magnesium rod 20 and a mounting seat 10.

[0040] The magnesium rod 20 includes a magnesium rod body 21 and a connector 22, and the connector 22 is disposed at one end of the magnesium rod body 21 along the length direction. The electric heating tube 40, the electronic anode 30 and the connector 22 are connected to the mounting seat 10 respectively.

[0041] The mounting seat 10 is used to install the electric heating pipe 40, the electronic anode 30 and the magnesium rod 20, wherein the magnesium rod 20 is connected to the mounting seat 10 by a connector 22, and the connector 22 can improve the stability of the connection between the magnesium rod 20 and the mounting seat 10. The connection mode of the electric heating pipe 40, the electronic anode 30 and the connector 22 to the mounting seat 10 is not limited. To facilitate the replacement and maintenance of the electronic anode 30 and the magnesium rod 20, the electronic anode 30 and the connector 22 can be detachably connected to the mounting seat 10, respectively. For example, the electronic anode 30 can be threaded, clamped or fastened with screws, bolts and other fasteners to the mounting seat 10, and the connector 22 can also be threaded, clamped or fastened with screws, bolts and other fasteners to the mounting seat 10. The probability of damage to the electric heating pipe 40 is small, and it can be non-detachably connected to the mounting seat 10, for example, the electric heating pipe 40 can be welded to the mounting seat 10.

[0042] For example, see Figure 3 and Figure 6 The mounting seat 10 includes a seat body 11 and an electronic anode connector 13, the seat body 11 has a second mounting hole, the electronic anode connector 13 has an electronic anode mounting hole 13a, the electronic anode connector 13 is passed through the second mounting hole and connected to the seat body 11, and the electronic anode 30 is passed through the electronic anode mounting hole 13a and is detachably connected to the electronic anode 30.

[0043] The electronic anode connector 13 is used to install the electronic anode 30, and can further strengthen the connection strength between the electronic anode 30 and the mounting base 10 to prevent the electronic anode 30 from shaking and breaking. The connection method between the electronic anode connector 13 and the base 11 is not limited. Preferably, the electronic anode connector 13 can be welded to the base 11 to ensure the connection strength and prevent the electronic anode 30 from falling off the base 11. In another embodiment, the electronic anode connector 13 can also be integrally formed with the base 11.

[0044] For example, see Figures 3 to 5 The mounting seat 10 includes a seat body 11 and a magnesium rod joint 12, the seat body 11 has a first mounting hole, the magnesium rod joint 12 has a magnesium rod mounting hole 12a, the magnesium rod joint 12 is passed through the first mounting hole and connected to the seat body 11, and the connecting piece 22 is passed through the magnesium rod mounting hole 12a and is detachably connected to the magnesium rod joint 12.

[0045] The magnesium rod joint 12 is used to install the connector 22, which can further strengthen the connection strength between the magnesium rod 20 and the mounting base 10 to prevent the magnesium rod 20 from shaking and breaking. The connection method between the magnesium rod joint 12 and the base 11 is not limited. Preferably, the magnesium rod joint 12 can be welded to the base 11 to ensure the connection strength and prevent the magnesium rod 20 from falling off the base 11. In another embodiment, the magnesium rod joint 12 can also be integrally formed with the base 11.

[0046] Please continue reading Figures 3 to 5 The magnesium rod body 21 can be detachably connected to the connecting piece 22 to replace the magnesium rod body 21. The connection method between the magnesium rod body 21 and the connecting piece 22, and between the connecting piece 22 and the mounting seat 10 is not limited, and can be threaded connection or fastened connection by fasteners.

[0047] See also Figure 5 The magnesium rod body 21 may include a rod core 211 and a rod body 212, the rod body 212 is coated on the circumference of the rod core 211, and the rod core 211 is connected to the connecting member 22. The rod core 211 may be made of steel to improve the structural strength of the magnesium rod body 21 so that the magnesium rod body 21 is not easily broken.

[0048] The inner tank 200 has a water storage cavity, the mounting seat 10 is mounted on the inner tank 200, and the electric heating tube 40, the electronic anode 30 and the magnesium rod body 21 extend into the water storage cavity.

[0049] The water storage chamber is used for storing water.

[0050] The inner tank 200 may be made of metal, and the inner wall of the water storage cavity may be coated with an enamel coating.

[0051] Exemplarily, the inner tank 200 may be provided with a flange having a flange opening, the flange may be a welding flange, a threaded flange, etc., the water storage chamber is connected to the outside through the flange opening, and the mounting seat 10 is arranged at the flange opening.

[0052] See also Figure 3 The seat body 11 of the mounting seat 10 can be set to a structure that is recessed toward the water storage chamber. At the same time, the outer edge of the seat body 11 can form an outwardly folded flange 111, and the flange 111 can cooperate with the flange to prevent water in the water storage chamber from leaking out from between the seat body 11 and the flange.

[0053] In addition, by arranging the electric heating tube 40, the electronic anode 30 and the magnesium rod 20 on the mounting base 10, an integrated structure of the electric heating tube 40, the electronic anode 30 and the magnesium rod 20 can be realized, which has the advantages of compact structure and small size. It can not only meet the safety prescribed spacing of more than 10 mm, but also is suitable for flanges with small flange openings (diameter 60 mm-100 mm (including end values)).

[0054] The electric heating tube 40 is used to heat the water in the water storage chamber. The shape of the electric heating tube 40 is not limited, for example, the shape of the electric heating tube 40 can be U-shaped, spiral-shaped, W-shaped, etc.

[0055] Exemplarily, the electric heating tube 40 includes a tube body and an electric heating wire and a metal oxide arranged in the tube body. The tube body can be an enameled stainless steel tube. The heat generated by the electric heating wire is transferred to the tube body through the metal oxide, thereby achieving the purpose of heating.

[0056] See also Figure 7 The control device 300 is connected to the electronic anode 30, the magnesium rod 20 and the inner tank 200 respectively through wires, so that when the power is on, the electronic anode 30, the inner tank 200 and the water in the water storage chamber form a first electronic circuit, and when the power is off or the electronic anode 30 fails, the magnesium rod 20, the inner tank 200 and the water in the water storage chamber form a second electronic circuit.

[0057] For example, see Figure 4 The magnesium rod 20 can be provided with a magnesium rod connector 26, which is arranged on the connecting piece 22. When the mounting seat 10 is installed on the inner tank 200, the magnesium rod connector 26 is located on the side of the mounting seat 10 away from the water storage chamber, and the magnesium rod connector 26 is connected to the control device 300 by wire.

[0058] For example, see Figure 6 The electronic anode 30 can be provided with an electronic anode tab 35, which is located on the side of the mounting seat 10 away from the water storage chamber, and the electronic anode tab 35 is connected to the control device 300 by wire. The electronic anode 30 and the magnesium rod 20 are used to provide corrosion protection for the inner tank 200, and the control device 300 is used to control the first electronic circuit and the on-off of the magnesium rod 20 and the second electronic circuit. In different situations, a sacrificial anode or an electronic anode 30 can be used to provide corrosion protection for the inner tank 200, thereby reducing the loss of the sacrificial anode and improving the anti-corrosion effect.

[0059] Specifically, when the water heater is powered on, the control device 300 controls the electronic anode 30 and the inner tank 200 to be turned on, and the electronic anode 30, the inner tank 200 and the water in the water storage chamber form a first electronic circuit, and the protection current flows from the electronic anode 30 through the water in the water storage chamber to the inner wall of the inner tank 200 to suppress the outflow of electrons from the inner tank 200, thereby preventing impurities in the water from corroding the inner wall of the inner tank 200. When the water heater is powered off or the electronic anode 30 fails, the control device 300 controls the electronic anode 30 to be disconnected from the inner tank 200, and controls the magnesium rod 20 and the inner tank 200 to be turned on, and the magnesium rod 20, the inner tank 200 and the water in the water storage chamber form a second electronic circuit, and the magnesium rod body 21 outputs current to consume itself to provide protection for the inner tank 200 and the electric heating and other components, that is, when the water heater is powered off or the electronic anode 30 fails, the magnesium rod body 21 acts as a sacrificial anode, and the inner tank 200 and the electric heating and other components act as cathodes.

[0060] For example, see Figure 7 The control device 300 may include an electric control box 310 and a main circuit board (Printed Circuit Board) 320. The electric control box 310 is connected to the electronic anode 30, the magnesium rod 20 and the inner tank 200 through wires. The electric control box 310 is used to control the on and off of the first electronic circuit between the electronic anode 30 and the inner tank 200 and the second electronic circuit between the magnesium rod 20 and the inner tank 200. In other words, the electric control box 310 is used to realize the switching between the first electronic circuit and the second electronic circuit, and the main circuit board 320 is used to provide power for the first electronic circuit.

[0061] In addition, it should be noted that the electronic anode 30 and the magnesium rod 20 can also provide anti-corrosion protection for the electric heating tube 40 .

[0062] The electric heating assembly of the embodiment of the present application is provided with a magnesium rod 20 and an electronic anode 30. When the water heater is powered on, the inner tank 200 itself loses electrons by applying an external current to the electronic anode 30, which can provide a good anti-corrosion protection for the inner tank 200. The magnesium rod 20 does not participate in the anti-corrosion protection. Therefore, the magnesium rod body 21 in the magnesium rod 20 will hardly be lost. When the water heater is powered off or the electronic anode fails, the magnesium rod body 21 in the magnesium rod 20 is used as a sacrificial anode to protect the inner tank 200. That is to say, when the water heater is powered off or the electronic anode fails, the magnesium rod 20 will be used to protect the inner tank 200 from corrosion. Compared with the method of using only magnesium rods for anti-corrosion protection in the related art, the electric heating assembly of the embodiment of the present application can not only reduce the loss of the magnesium rod 20, but also provide better anti-corrosion protection for the inner tank 200 in the powered on and powered off states, thereby improving the anti-corrosion effect. In addition, the electric heating tube 40, the electronic anode 30 and the magnesium rod 20 are all arranged on the mounting base 10, and the magnesium rod 20 is connected to the mounting base 10 through the connecting piece 22. This not only facilitates the assembly of the electric heating tube 40, the electronic anode 30 and the magnesium rod 20 to the inner tank 200 through the mounting base 10, but also improves the stability of the connection between the magnesium rod 20 and the mounting base 10.

[0063] In one embodiment, please refer to Figure 5 The connecting member 22 may include a connecting portion 221 and a fixing portion 222 , wherein the connecting portion 221 is connected to the magnesium rod body 21 , and the fixing portion 222 is located on a side of the connecting portion 221 away from the magnesium rod body 21 , and is connected to the mounting seat 10 .

[0064] That is, the connecting member 22 is connected to the magnesium rod body 21 through the connecting portion 221 , and is connected to the mounting seat 10 through the fixing portion 222 .

[0065] For example, see Figure 5 The connecting portion 221 may be provided with a threaded hole, and an external thread is formed at one end of the magnesium rod body 21 along the length direction. The connecting portion 221 and the magnesium rod body 21 may be threadedly matched through the threaded hole and the external thread to facilitate the disassembly and assembly of the magnesium rod body 21.

[0066] Please continue reading Figure 4 and Figure 5 The magnesium rod 20 further includes a first insulating sealing sleeve 23 , which is sleeved on a portion of the structure of the magnesium rod body 21 and the outer peripheral side of the connecting portion 221 .

[0067] The first insulating sealing sleeve 23 is used to seal the connection part 221 and the connection part between the connection part 221 and the magnesium rod body 21 to separate the connection part 221 from the water in the water storage chamber. The first insulating sealing sleeve 23 can also prevent the connection part 221 and the inner tank 200 from being directly connected to form a circuit, thereby affecting the anti-corrosion effect.

[0068] The material of the first insulating sealing sleeve 23 is not limited. For example, the first insulating sealing sleeve 23 can be made of rubber. The rubber material not only has good sealing performance but also has good electrical insulation.

[0069] See also Figure 5 The outer dimensions of the connecting portion 221 may be larger than those of the fixing portion 222. The first insulating sealing sleeve 23 includes an annular side wall 231 and an end wall 232 having an opening. The annular side wall 231 surrounds the outer circumference of the connecting portion 221 and a portion of the structure of the magnesium rod body 21. The end wall 232 is located on the side of the connecting portion 221 away from the magnesium rod body 21, and the fixing portion 222 is passed through the opening.

[0070] That is to say, the cross-sectional area of ​​the connecting portion 221 can be larger than the cross-sectional area of ​​the fixing portion 222, so as to facilitate the connection between the connecting portion 221 and the magnesium rod body 21. At the same time, in addition to wrapping the outer wall surface of the entire connecting portion 221, the first insulating sealing sleeve 23 can also wrap the end surface of the connecting portion 221 close to the fixing portion 222, thereby providing a better sealing effect on the connecting portion 221.

[0071] See also Figure 3 The mounting seat 10 may have a first mounting opening 10a, and the fixing portion 222 is inserted into the first mounting opening 10a. Since the outer dimensions of the connecting portion 221 are larger than the outer dimensions of the fixing portion 222, when the fixing portion 222 is inserted into the first mounting opening 10a, the end wall 232 of the first insulating sealing sleeve 23 of the connecting portion 221 may be clamped between the connecting portion 221 and the mounting seat 10, thereby sealing the gap between the connecting portion 221 and the mounting seat 10 and preventing water from leaking from the gap between the connecting portion 221 and the mounting seat 10.

[0072] See also Figure 5 In order to enhance the sealing effect between the connecting portion 221 and the mounting seat 10, the end wall 232 may have a first annular protrusion 2321 on one side close to the mounting seat 10, and the first annular protrusion 2321 is in sealing contact with the mounting seat 10. Preferably, for the first insulating sealing sleeve 23 made of rubber, when the connecting member 22 is installed on the mounting seat 10, the first annular protrusion 2321 may generate a certain elastic deformation under the action of the extrusion force, thereby further enhancing the sealing effect between the connecting portion 221 and the mounting seat 10.

[0073] Please continue reading Figure 5 The side of the end wall 232 close to the connecting portion 221 may also have a second annular protrusion 2322 , and the second annular protrusion 2322 is in sealing contact with the connecting portion 221 .

[0074] The second annular protrusion 2322 is used to further seal the gap between the connecting portion 221 and the end wall 232 to further improve the sealing effect of the first insulating sealing sleeve.

[0075] In another embodiment, the second annular protrusion 2322 may also be disposed on the annular side wall 231 , for example, on a side of the annular side wall 231 close to the connecting portion 221 , and in sealing contact with the connecting portion 221 or the magnesium rod body 21 .

[0076] See also Figure 5 The magnesium rod 20 may further include a second insulating sealing sleeve 24 sleeved on the outer peripheral side of the fixing portion 222 , the second insulating sealing sleeve 24 penetrates the first mounting opening 10 a and is in sealing contact with the mounting seat 10 .

[0077] That is, when the fixing portion 222 is inserted into the first mounting opening 10a, the second insulating sealing sleeve 24 is sleeved on the outer peripheral side of the fixing portion 222 and is located in the first mounting opening 10a. The second insulating sealing sleeve 24 seals the gap between the fixing portion 222 and the mounting seat 10 by sealingly contacting the fixing portion 222 and the mounting seat 10 respectively, thereby preventing the magnesium rod 20 from shaking during transportation and improving the installation stability of the magnesium rod 20. At the same time, the second insulating sealing sleeve also has a certain sealing effect.

[0078] Please continue reading Figure 4 and Figure 5 The second insulating sealing sleeve 24 may include a sleeve portion 241 sleeved on the outer peripheral side of the fixing portion 222 and a third annular protrusion 242 ring-shaped on the outer peripheral side of the sleeve portion 241. The third annular protrusion 242 is located on the side of the mounting seat 10 away from the connecting portion 221 and is in sealing contact with the mounting seat 10.

[0079] The sleeve portion 241 is sleeved on the fixing portion 222 and penetrates the first installation opening 10 a , that is, the sleeve portion 241 is used to seal the gap between the fixing portion 222 and the side wall of the first installation opening 10 a .

[0080] When the mounting seat 10 is installed on the inner tank 200, since the third annular protrusion 242 is located on the side of the mounting seat 10 away from the connecting portion 221, the third annular protrusion 242 is located on the side of the mounting seat 10 away from the water storage chamber. The third annular protrusion 242 can achieve sealing by abutting against the mounting seat 10, thereby further improving the sealing effect.

[0081] For example, see Figure 5, the portion of the fixing portion 222 extending from the connecting portion 221 of the second insulating sealing sleeve 24 may be provided with an external thread, the fixing portion 222 is inserted into the first mounting opening 10a, and the external thread may be threadedly matched with the threaded hole of the first nut 25 to fix the fixing portion 222 on the mounting seat 10. For the embodiment in which the outer dimensions of the fixing portion 222 of the connecting portion 221 are larger than the outer dimensions of the fixing portion 222, the connecting portion 221 may be matched with the first nut 25 to clamp the mounting seat 10 between the connecting portion 221 and the first nut 25, thereby improving the connection stability between the connector 22 and the mounting seat 10. At the same time, since the third annular protrusion 242 is located between the first nut 25 and the mounting seat 10, the sealing effect of the third annular protrusion 242 may be further enhanced by tightening the first nut 25.

[0082] In one embodiment, please refer to Figure 6 The electronic anode 30 may include a titanium rod 31, a mounting joint 32 and a metal oxide layer 33. The titanium rod 31 includes a second section 312 along a first section 311 and arranged at one end of the first section 311. The first section 311 is passed through a through hole of the mounting joint 32. The metal oxide layer 33 is coated on the outer surface of the second section 312. The mounting joint 32 is connected to the mounting seat 10.

[0083] The electron anode 30 is based on a titanium rod 31, which has a long service life and strong corrosion resistance. Preferably, the titanium rod 31 can be industrial pure titanium.

[0084] The metal oxide layer 33 can enhance the conductivity and electrocatalytic activity of the titanium rod 31, thereby promoting the electrolytic reaction process, ensuring that the titanium rod 31 has a longer service life in different use environments, and achieving the expected use effect. The length of the metal oxide layer 33 can be designed according to the overall structure of the liner 200. For example, the coating length can be between 5 mm and 250 mm (including the end values).

[0085] The mounting joint 32 is used to mount the electronic anode 30 on the mounting base 10. To prevent the titanium rod 31 from being electrically connected to the mounting base 10 through the mounting joint 32, the mounting joint 32 may be made of an insulating material. For example, it may be PPS (Polyphenylenesulfide) resin. PPS resin not only has good mechanical strength and thermal stability, but also has good electrical insulation performance.

[0086] The structure of the mounting joint 32 is not limited. Figure 6The mounting joint 32 may include an extension portion 321 and a mounting portion 322. The extension portion 321 is located at one end of the mounting joint 32 close to the titanium rod 31 and extends along the length direction of the titanium rod 31. The mounting portion 322 is located at one end of the mounting joint 32 away from the titanium rod 31 and connected to the mounting seat 10. The extension portion 321 can improve the strength of the titanium rod 31 and prevent the titanium rod 31 from breaking due to shaking.

[0087] To facilitate processing and manufacturing, the extension portion 321 and the mounting portion 322 can be integrally formed, for example, by injection molding.

[0088] See also Figure 6 The electronic anode connector 35 can be arranged on the mounting joint 32 to facilitate the connection of the electronic anode 30 with the control device 300 through the electronic anode connector 35 .

[0089] The connection method between the mounting joint 32 and the mounting base 10 is not limited. For example, please refer to Figure 3 and Figure 6 The mounting joint 32 is formed with an external thread, and the mounting seat 10 is formed with a threaded hole (for example, the electronic anode mounting hole 13a can be set as a threaded hole), the mounting joint 32 is inserted into the threaded hole, and the external thread is threadedly matched with the threaded hole. In order to further strengthen the connection strength between the mounting joint 32 and the mounting seat 10, the electronic anode 30 can also be provided with a second nut 36, and the second nut 36 is threadedly connected to the mounting joint 32.

[0090] For further information, see Figure 6 The electronic anode 30 may further include a sealing ring 34, which is sleeved on the mounting joint 32 and is in sealing contact with the mounting seat 10. The sealing ring 34 can prevent water from leaking from the gap between the mounting joint 32 and the mounting seat 10.

[0091] In one embodiment, please refer to Figure 1 and Figure 2 The electric heating assembly may further include a temperature detection blind tube 50 , which is connected to the mounting seat 10 .

[0092] The temperature detection blind tube 50 is used to set a temperature sensing probe, that is, the temperature sensing probe can be inserted into the temperature detection blind tube 50 to detect the water temperature in the water storage cavity. Specifically, the temperature detection blind tube 50 has a probe accommodating cavity, and the mounting seat 10 has a avoidance opening 10b, and the probe accommodating cavity is connected to the avoidance opening 10b to facilitate the temperature sensing probe to extend into the probe accommodating cavity from the avoidance opening 10b.

[0093] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0094] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An electric heating component, characterized in that: include: Electric heating tube; Electronic anode; A magnesium rod, comprising a magnesium rod body and a connecting piece, wherein the connecting piece is arranged at one end of the magnesium rod body along the length direction; A mounting seat, the electric heating tube, the electronic anode and the connecting piece are respectively connected to the mounting seat.

2. The electric heating assembly according to claim 1, characterized in that: The magnesium rod body is detachably connected to the connecting piece; and / or the connecting piece is detachably connected to the mounting seat.

3. The electric heating assembly according to claim 1 or 2, characterized in that: The connecting member includes a connecting portion and a fixing portion, wherein the connecting portion is connected to the magnesium rod body, and the fixing portion is located on a side of the connecting portion away from the magnesium rod body and is connected to the mounting seat.

4. The electric heating assembly according to claim 3, characterized in that: The magnesium rod further includes a first insulating sealing sleeve, which is sleeved on a partial structure of the magnesium rod body and the outer peripheral side of the connecting portion.

5. The electric heating assembly according to claim 4, characterized in that: The outer dimensions of the connecting portion are greater than those of the fixing portion. The first insulating sealing sleeve includes an annular side wall and an end wall with an opening. The annular side wall surrounds the outer circumference of the connecting portion and a partial structure of the magnesium rod body. The end wall is located on the side of the connecting portion away from the magnesium rod body, and the fixing portion is inserted into the opening.

6. The electric heating assembly according to claim 5, characterized in that: The mounting seat has a first mounting opening, and the fixing portion is inserted into the first mounting opening; The end wall has a first annular protrusion on one side close to the mounting seat, and the first annular protrusion is in sealing contact with the mounting seat; and / or, The magnesium rod further comprises a second insulating sealing sleeve sleeved on the outer peripheral side of the fixing portion, wherein the second insulating sealing sleeve is passed through the first mounting opening and is in sealing contact with the mounting seat.

7. The electric heating assembly according to claim 6, characterized in that: The magnesium rod includes the second insulating sealing sleeve, which includes a sleeve portion sleeved on the outer peripheral side of the fixing portion and a third annular protrusion arranged around the outer peripheral side of the sleeve portion, and the third annular protrusion is located on the side of the mounting seat away from the connecting portion and is in sealing contact with the mounting seat.

8. The electric heating assembly according to claim 5, characterized in that: A second annular protrusion is provided on one side of the end wall close to the connecting portion, and the second annular protrusion is in sealing contact with the connecting portion.

9. The electric heating assembly according to claim 1 or 2, characterized in that: The electronic anode includes a titanium rod, a mounting joint and a metal oxide layer. The titanium rod includes a first section and a second section arranged along one end of the first section. The first section is passed through a through hole of the mounting joint. The metal oxide layer is coated on the outer surface of the second section. The mounting joint is connected to the mounting seat.

10. The electric heating assembly according to claim 1 or 2, characterized in that: The mounting seat comprises a seat body and a magnesium rod joint, the seat body has a first mounting hole, the magnesium rod joint has a magnesium rod mounting hole, the magnesium rod joint is inserted into the first mounting hole and connected to the seat body, the connecting piece is inserted into the magnesium rod mounting hole and is detachably connected to the magnesium rod joint; and / or, The mounting seat includes a seat body and an electronic anode connector, the seat body has a second mounting hole, the electronic anode connector has an electronic anode mounting hole, the electronic anode connector is inserted into the second mounting hole and connected to the seat body, the electronic anode is inserted into the electronic anode mounting hole and is detachably connected to the electronic anode.

11. The electric heating assembly according to claim 1 or 2, characterized in that: The electric heating assembly also includes a temperature detection blind tube, which is connected to the mounting seat.

12. A water heater, characterized in that: include: An inner tank having a water storage cavity; the electric heating assembly according to any one of claims 1 to 11, wherein the mounting seat is mounted on the inner tank, and the electric heating tube, the electronic anode and the magnesium rod body extend into the water storage cavity; A control device is provided, wherein the control device is connected to the electronic anode, the magnesium rod and the inner tank through wires, so that when the power is on, the electronic anode, the inner tank and the water in the water storage chamber form a first electronic circuit, and when the power is off or the electronic anode fails, the magnesium rod, the inner tank and the water in the water storage chamber form a second electronic circuit.

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