Magnesium rod assembly and electric water heater

Abstract

The utility model discloses a magnesium rod assembly and an electric water heater, the magnesium rod assembly comprises a magnesium rod, an insulation part and a fixed installation part, the fixed installation part is configured to be fixedly installed on an inner container of the water heater, and the magnesium rod is arranged on the fixed installation part through the insulation part; and the conductive part penetrates through the insulating part in a sealing manner and is respectively and conductively connected with the magnesium rod and the fixed mounting part. The service life of the magnesium rod is prolonged by improving the use reliability of the magnesium rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and in particular relates to a magnesium rod assembly and an electric water heater. Background Art

[0002] At present, water heaters are household appliances commonly used in people's daily lives. Electric water heaters can be divided into storage type electric water heaters and instant electric water heaters according to the size of heating power. Storage type electric water heaters are equipped with water tanks, which have the characteristics of large water output and stable water temperature, and are purchased and used by more families. In order to reduce the scale inside the water tank, magnesium rods are usually installed in the water tank to play the role of scale prevention.

[0003] Chinese patent announcement number CN 212299437 U discloses a magnesium anode device and a water heater, which adjusts the potential through a control device to extend the service life of the magnesium rod. However, since the magnesium rod is fixedly installed on the inner tank through a flange, the contact between the flange and the magnesium rod will cause galvanic corrosion caused by direct contact between dissimilar metals in water, making the magnesium rod very prone to root corrosion, resulting in low reliability of use of the magnesium rod and shortening its service life. In view of this, how to design a technology to improve the reliability of the use of the magnesium rod to extend the service life of the magnesium rod is a technical problem to be solved by the utility model. Utility Model Content

[0004] The utility model provides a magnesium rod assembly and an electric water heater, which can improve the reliability of the use of the magnesium rod and extend the service life of the magnesium rod.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] In one aspect, the utility model provides a magnesium rod assembly, comprising:

[0007] Magnesium rod;

[0008] Insulation parts;

[0009] A fixed installation component, wherein the fixed installation component is configured to be fixedly installed on the inner tank of the water heater, and the magnesium rod is arranged on the fixed installation component through the insulating component;

[0010] A conductive component is sealed and passes through the insulating component and is conductively connected to the magnesium rod and the fixed installation component respectively.

[0011] In one embodiment of the present application, the conductive component is a conductive cable, which is sealed in the insulating component and connected between the magnesium rod and the fixed installation component.

[0012] In one embodiment of the present application, the conductive component is a conductive rod; a plug hole is provided at one end of the magnesium rod, a first through hole is provided on the insulating component, and a second through hole is provided on the fixed installation component;

[0013] The conductive rod passes through the second through hole and the first through hole in sequence and is inserted into the insertion hole. The conductive rod is conductively connected to the magnesium rod and the fixed installation component respectively.

[0014] In one embodiment of the present application, the magnesium rod, the insulating component and the fixed installation component are split structures, the insulating component is sleeved on the conductive component, the fixed installation component is sleeved on the insulating component, a sealing ring is arranged between the insulating component and the magnesium rod, and a sealing ring is arranged between the insulating component and the fixed installation component.

[0015] In one embodiment of the present application, the insulating component is injection molded on the insulating component, the conductive component passes through the insulating component and is inserted into the insertion hole, the fixed installation component is sleeved on the insulating component, and a sealing ring is provided between the insulating component and the fixed installation component.

[0016] In one embodiment of the present application, the insulating component is formed on the fixed installation component by injection molding, the insulating component and the fixed installation component are sleeved on the conductive rod, and a sealing ring is provided between the insulating component and the magnesium rod.

[0017] In one embodiment of the present application, a retaining ring is provided on the conductive rod; the retaining ring is abutted against the end of the magnesium rod and is clamped between the sealing ring and the magnesium rod.

[0018] In one embodiment of the present application, an insulating coating is further provided on the rod wall of the conductive rod, the insulating coating is adjacent to the retaining ring, and the portion of the conductive rod having the insulating coating is inserted into the insertion hole.

[0019] In one embodiment of the present application, at least the surface of the retaining ring in contact with the magnesium rod is also provided with the insulating coating.

[0020] In one embodiment of the present application, a connection terminal is further provided at the end of the conductive component extending outside the fixed installation component.

[0021] In one embodiment of the present application, the outer circumference of the fixed installation component is provided with external threads; and / or the outer circumference of the end of the conductive component extending outside the fixed installation component is provided with external threads.

[0022] The present application also provides an electric water heater, comprising:

[0023] A housing, wherein a water inlet pipe and a water outlet pipe are arranged on the housing, and an electric control panel is also arranged in the housing;

[0024] An inner tank, wherein the inner tank is connected to the water inlet pipe and the water outlet pipe respectively;

[0025] An electric heating device, wherein the electric heating device is arranged in the inner tank;

[0026] A magnesium rod assembly, wherein the magnesium rod assembly adopts the above-mentioned magnesium rod assembly; the fixed mounting component of the magnesium rod assembly is arranged on the inner liner, and the magnesium rod of the magnesium rod assembly is arranged in the inner liner;

[0027] The electric control board is electrically connected to the electric heating device and the conductive parts of the magnesium rod assembly respectively.

[0028] In one embodiment of the present application, the inner tank comprises an upper tank body and a lower tank body, the upper tank body is arranged above the lower tank body, the water inlet pipe extends into the lower tank body, and the water outlet pipe extends into the upper tank body;

[0029] The electric heating device comprises a first electric heating tube, a second electric heating tube and a third electric heating tube; the first electric heating tube and the second electric heating tube are arranged in the upper gallbladder body, the first electric heating tube extends to the water inlet of the water outlet pipe, the second electric heating tube extends and is arranged at the bottom of the upper gallbladder body, and the third electric heating tube is arranged in the lower gallbladder body and extends and is arranged at the bottom of the lower gallbladder body;

[0030] A water temperature detection module, the water temperature detection module includes a first water temperature sensor, a second water temperature sensor and a third water temperature sensor, the first water temperature sensor and the second water temperature sensor are arranged in the upper tank body, the first water temperature sensor is arranged above the second water temperature sensor, and the first water temperature sensor is close to the water inlet of the water outlet pipe; the third water temperature sensor is arranged in the lower tank body;

[0031] Among them, the electric control board is configured to control the first electric heating tube to be powered on and heated according to the water temperature detected by the first water temperature sensor, to control the second electric heating tube to be powered on and heated according to the water temperature detected by the second water temperature sensor, and to control the third electric heating tube to be powered on and heated according to the water temperature detected by the third water temperature sensor.

[0032] In one embodiment of the present application, the invention further comprises: a housing assembly, the housing assembly comprising an anti-electricity wall cover and a cover plate, the anti-electricity wall cover is provided with a mounting opening, the cover plate is provided with at least a mounting hole, and the cover plate is detachably arranged in the mounting opening;

[0033] Wherein, the anti-electricity wall cover is arranged on the outer shell, and the water inlet pipe and the water outlet pipe are respectively inserted into the installation holes.

[0034] A conductive component is provided on the fixed installation component, and the conductive component is sealed and passes through the insulating component, so that the magnesium rod and the fixed installation component are conductively connected with each other by means of the conductive component. At the same time, the magnesium rod and the fixed installation component are separated by the insulating component. After the fixed installation component is installed on the inner tank, the magnesium rod is immersed in water without directly contacting the fixed installation component, thereby avoiding galvanic corrosion caused by direct contact of dissimilar metals in water, reducing corrosion at the root of the magnesium rod, thereby improving the reliability of the use of the magnesium rod and extending the service life of the magnesium rod, thereby improving the reliability of the electric water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 This is one of the structural schematic diagrams of an embodiment of an electric water heater of the present invention;

[0037] Figure 2 This is a second structural schematic diagram of an embodiment of the electric water heater of the present invention;

[0038] Figure 3 for Figure 2 A cross-sectional view of a medium electric water heater;

[0039] Figure 4 for Figure 2 Schematic diagram of the structure of the magnesium rod assembly;

[0040] Figure 5 for Figure 4 A cross-sectional view of the middle magnesium rod assembly;

[0041] Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle N region;

[0042] Figure 7 for Figure 1 Schematic diagram of the partial structure of the electric water heater;

[0043] Figure 8 for Figure 7 Assembly drawing of the middle end cover and the electric control board;

[0044] Fig. 9 for Figure 8 A partial enlarged schematic diagram of the middle B area;

[0045] Fig.10 for Figure 8 Structural schematic diagram of the middle end cover;

[0046] Fig.11 for Fig.10 A partial enlarged schematic diagram of the middle C area;

[0047] Fig.12 for Figure 8 A schematic diagram of the structure of the fixed installation parts;

[0048] Fig.13 for Figure 1 Explosion diagram of the Zhongdian water heater (part 2);

[0049] Fig.14 for Fig.13 A partial enlarged schematic diagram of the middle M region;

[0050] Fig.15 for Fig.13 An exploded view of the housing assembly;

[0051] Fig.16 for Figure 4 Sectional view of the corrosion-resistant component (II);

[0052] Fig.17 for Figure 4 The third cross-sectional view of the corrosion protection component. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] An electric water heater uses electricity as its main energy source. The high-temperature heat generated after power is turned on directly heats the water stored in the electric water heater to achieve the purpose of preparing hot water.

[0055] An electric water heater usually includes a water tank, an electric heating component, an electric control board and other components. A water storage cavity is formed in the water tank to store the water to be heated. The electric heating component is inserted into the water storage cavity formed by the water tank. The electric control board is used to control the on and off operation of the electric heating component so that the water in the water tank is heated to a set temperature.

[0056] For the water tank of an electric water heater, the water tank generally includes an outer shell and an inner tank, and an insulation layer is formed between the outer shell and the inner tank. Among them, the outer shell is generally made of plastic material to meet the design requirements of beautiful and diverse shapes; the inner tank can be made of metal or plastic according to needs.

[0057] In addition, the insulation layer formed between the outer shell and the inner liner, commonly used insulation materials include: asbestos, sponge, foam plastic, polyurethane foam, etc. In conventional technology, in order to obtain a good insulation effect, the insulation layer is usually formed by foaming.

[0058] Among them, for the inner tank using a metal tank body, the interior of the inner tank is prone to corrosion due to the influence of water quality. For this reason, a magnesium rod is also configured on the water tank, and the magnesium rod is inserted into the water storage cavity inside the water tank.

[0059] Since magnesium is the metal with the lowest potential in the electrochemical series and is physiologically non-toxic, it is ideal for making magnesium rods to protect the inner liner. The size of the magnesium rod is directly related to the length of time the inner liner is protected and the size of the protective effect. The larger the magnesium rod, the better the protective effect and the longer the protection time.

[0060] The water tank is also provided with a water inlet pipe and a water outlet pipe. The water inlet pipe is used to transport cold water to the water storage cavity formed in the water tank, while the hot water in the water storage cavity is output from the water outlet pipe.

[0061] For the electric heating component, electric heating methods such as electric heating wire, magnetic energy or silicon tube heating can be used to heat the water stored in the water storage cavity.

[0062] As for the electric control board, it is used to receive the detection signals sent by relevant sensors (such as water temperature sensors, flow sensors), and at the same time, control the power on and off operation of the electric heating components.

[0063] When the electric water heater is working, the electric control board controls the electric heating component to be powered on for heating. When the water temperature in the water tank reaches the set value, the electric control board controls the electric heating component to be powered off.

[0064] Embodiment 1, refer to Figure 1-Figure 6 As shown, an embodiment of the present application provides an electric water heater, including: a shell 100, an inner tank 200, and an electric heating device 300.

[0065] The outer shell 100 further includes an electric control board 123 , an inner shell 200 , and an electric heating device 300 .

[0066] In order to reduce the corrosion of the inner wall of the inner tank 200 , the electric water heater further includes a magnesium rod assembly 250 .

[0067] The magnesium rod assembly 250 includes: a magnesium rod 251, an insulating component 252 and a conductive component 254. The conductive component 254 is conductively connected to the magnesium rod 251, the magnesium rod 251 is arranged on the insulating component 252, and the magnesium rod 251 is fixedly arranged in the inner liner 200 through the insulating component 252; the conductive component 254 is sealed through the insulating component 252 and conductively connected to the inner liner 200; wherein the insulating component separates the inner liner and the magnesium rod; the electric control board is electrically connected to the electric heating device and the conductive component respectively.

[0068] Specifically, when the magnesium rod assembly 250 is installed, the magnesium rod 251 is inserted into the inner liner 200 and is separated from the inner liner 200 by the insulating component 252 so that the magnesium rod 251 does not directly contact the inner liner 200 .

[0069] During use, the inner liner 200 is filled with water, and the magnesium rod 251 is immersed in the water of the inner liner 200. Since the magnesium rod 251 is separated from other metal parts by the insulating component 252, the part of the magnesium rod 251 in contact with water is not in direct contact with other metal parts, but is separated by the insulating component 252. In this way, during use, failure caused by local rapid consumption of magnesium due to contact between dissimilar metals can be avoided, thereby extending the service life of the magnesium rod.

[0070] In one embodiment, the magnesium rod assembly 250 also includes: a fixed installation component 253, which is fixedly connected to the inner liner 200, and the magnesium rod 251 is connected to the fixed installation component 253 through the insulating component 252, thereby achieving the installation of the magnesium rod 251 and the insulating component 252 on the inner liner 200 through the fixed installation component 253.

[0071] There are various structural forms for the manifestation entity of the conductive component 254. For example, the conductive component is a conductive cable, and the conductive cable is sealed in the insulating component and connected between the magnesium rod and the fixed installation component.

[0072] In some embodiments, the conductive component 254 is a rod-shaped structure, that is, the conductive component 254 is a conductive rod. A plug hole is provided at one end of the magnesium rod 251, a first through hole is provided on the insulating component 252, and a second through hole is provided on the fixed installation component 253; the conductive component 254 passes through the second through hole and the first through hole in sequence and is inserted into the plug hole, and the conductive rod conductive component 254 is respectively conductively connected to the magnesium rod 251 and the fixed installation component 253, and the fixed installation component 253 is directly in contact with the inner liner 200 and conductively connected.

[0073] Specifically, when the magnesium rod assembly 250 is installed, the magnesium rod 251 is inserted into the inner liner 200, and the fixed installation component 253 is fixedly connected to the inner liner to support the magnesium rod 251 located inside the inner liner 200. During use, the inner liner 200 is filled with water, and the magnesium rod 251 will be immersed in the water of the inner liner 200. Since the magnesium rod 251 and the fixed installation component 253 are separated by the insulating component 252, the part of the magnesium rod 251 that contacts the water does not directly contact the fixed installation component 253, but is separated by the insulating component 252. In this way, during use, galvanic corrosion caused by direct contact between dissimilar metal magnesium and the fixed installation component 253 made of iron in water can be avoided.

[0074] In one embodiment, the insulating component 252 may be an independent component, or may be directly formed on the magnesium rod 251 or the fixed installation component 253 by injection molding.

[0075] like Figure 5 As shown, the insulating component 252 is formed on the fixed installation component 253 by injection molding.

[0076] Since the conductive component 254 needs to be inserted into the socket of the magnesium rod 251 , in order to prevent water from entering the connection portion between the magnesium rod 251 and the insulating component 252 and causing galvanic corrosion between the magnesium rod 251 and the conductive component 254 , a sealing ring 255 is further provided between the insulating component 252 and the magnesium rod 251 .

[0077] Specifically, a sealing ring 255 is provided between the insulating component 252 and the magnesium rod 251 to seal the two, thereby ensuring that during long-term use, water in the inner tank will not penetrate into the connection between the conductive component 254 and the magnesium rod 251, thereby further improving the reliability of use.

[0078] In some embodiments, a retaining ring 2541 is disposed on the conductive component 254 ; the retaining ring is abutted against the end of the magnesium rod 251 and is sandwiched between the sealing ring 255 and the magnesium rod 251 .

[0079] Specifically, when the conductive component 254 is inserted, a retaining ring is provided on the conductive component 254 to facilitate the operator to assemble accurately, and the retaining ring is used to limit the assembly position between the conductive component 254 and the magnesium rod 251 .

[0080] Or, if Fig.17 As shown, the insulating component 252 is formed by injection molding on the magnesium rod. At this time, a sealing ring 255 is arranged between the fixed installation component 253 and the insulating component 252.

[0081] Or, if Fig.16As shown, the insulating component 252 is an independent component. At this time, a sealing ring 255 is arranged between the fixed installation component 253 and the insulating component 252, and a sealing ring 255 is also arranged between the magnesium rod 251 and the insulating component 252.

[0082] In another embodiment, an insulating coating 2542 is further provided on the rod wall of the conductive component 254, the insulating coating is adjacent to the retaining ring, and the portion of the conductive component 254 having the insulating coating is inserted into the insertion hole.

[0083] Specifically, since the magnesium rod 251 needs to be provided with a socket to install the conductive component 254, the thickness of the portion of the magnesium rod 251 where the socket is formed is relatively small. During use, as the magnesium rod 251 is consumed, the portion of the magnesium rod 251 where the conductive component 254 is installed will gradually consume and expose the conductive component 254, and the insulating coating 2542 provided on the rod wall of the conductive component 254 will prevent the conductive component 254 from directly contacting the magnesium rod 251 and causing galvanic corrosion.

[0084] In order to ensure that the conductive component 254 and the magnesium rod 251 can maintain a conductive state, the insulating coating 2542 is not applied to the end surface of the conductive component 254, so that the end surface of the conductive component 254 is in contact with the magnesium rod 251 for conduction. In addition, at least the surface of the retaining ring that contacts the magnesium rod 251 is also provided with the insulating coating.

[0085] In another embodiment, a connection terminal 256 is further provided at the end of the conductive component 254 extending out of the fixed installation component 253 .

[0086] Specifically, in order to facilitate the wiring between the conductive component 254 and the electric control board, a wiring terminal may be provided on the conductive component 254, and the wiring terminal is convenient for connecting the wire to the electric control board.

[0087] In some embodiments, in order to facilitate assembly, the outer circumference of the fixed installation component 253 is provided with an external thread, and the fixed installation component 253 is threadedly connected to the inner tank through the external thread. The outer circumference of the end of the conductive component 254 that extends outside the fixed installation component 253 is provided with an external thread to facilitate fixing the terminal to the end of the conductive component 254 through a nut.

[0088] Example 2, refer to Figure 1-Figure 15 As shown, in another embodiment of the present application, the inner tank 200 includes an upper tank body 230 and a lower tank body 240, wherein the upper tank body 230 is arranged above the lower tank body 240, the water inlet pipe 210 extends into the lower tank body 240, and the water outlet pipe 220 extends into the upper tank body 230;

[0089] An electric heating device 300, comprising a first electric heating tube 330, a second electric heating tube 320 and a third electric heating tube 310; the first electric heating tube 330 and the second electric heating tube 320 are arranged in the upper gallbladder body, the first electric heating tube 330 extends to the water inlet of the water outlet pipe 220, the second electric heating tube 320 extends and is arranged at the bottom of the upper gallbladder body 230, and the third electric heating tube 310 is arranged in the lower gallbladder body 240 and extends and is arranged at the bottom of the lower gallbladder body 240;

[0090] A water temperature detection module 600, the water temperature detection module 600 includes a first water temperature sensor 610, a second water temperature sensor 620 and a third water temperature sensor 630, the first water temperature sensor 610 and the second water temperature sensor 620 are arranged in the upper gallbladder body 230, the first water temperature sensor 610 is arranged above the second water temperature sensor 620, and the first water temperature sensor 610 is close to the water inlet of the water outlet pipe 220; the third water temperature sensor 630 is arranged in the lower gallbladder body;

[0091] Among them, the electric control board 123 is configured to control the first electric heating tube 330 to be powered on and heated according to the water temperature detected by the first water temperature sensor 610, to control the second electric heating tube 320 to be powered on and heated according to the water temperature detected by the second water temperature sensor 620, and to control the third electric heating tube 310 to be powered on and heated according to the water temperature detected by the third water temperature sensor 630.

[0092] Specifically, in actual use, when the user starts the electric water heater to supply hot water, the user can make the electric water heater perform different heating methods according to the user's water demand, thereby meeting the user's various hot water use needs.

[0093] Specifically, there are two heating tubes in the upper gallbladder body 230 , the first electric heating tube 330 is close to the water outlet of the water outlet pipe 220 , and the second electric heating tube 320 is located at the lower side of the upper gallbladder body 230 .

[0094] During normal water use, in order to reduce energy consumption, only the second electric heating tube 320 needs to be started to heat the water in the upper tank body 230 .

[0095] When the user starts the electric water heater and needs to use hot water immediately, the first electric heating tube 330 near the water outlet pipe 220 starts heating. The first electric heating tube 330 can quickly heat the water around the water inlet of the water outlet pipe 220 and the water flowing in the water outlet pipe 220 to meet the requirements of instant hot water supply.

[0096] When the user needs a larger amount of hot water, the second heating tube on the lower side of the upper tank body 230 starts heating, and the third electric heating tube 310 configured in the lower tank body 240 also starts heating, thereby achieving the purpose of increasing the capacity of hot water.

[0097] By arranging the first electric heating tube and the second electric heating tube in the upper body and the third electric heating tube in the lower body, correspondingly, each electric heating tube is configured with a corresponding temperature sensor to detect the water temperature so that the electric control board controls the operation of the corresponding electric heating tube according to the water temperature detected by different temperature sensors. In this way, in actual use, the user can start the electric water heater according to the demand for hot water to execute different hot water supply modes, thereby enriching the hot water supply modes of the water heater and improving the user experience.

[0098] In one embodiment of the present application, the middle portion of the first electric heating tube 330 is distributed at the bottom of the upper tank body 230 , and the free end of the first electric heating tube 330 extends upward along the water outlet pipe.

[0099] Specifically, in order to fully utilize the heat generated by the first electric heating tube 330 to heat and realize instant hot water supply, for the first electric heating tube 330, after its fixed end is installed on the flange of the upper tank body 230, the first electric heating tube 330 is bent and extended to the bottom of the upper tank body during the extension and distribution of the upper tank body 230, and then its free end extends the water outlet pipe upward. In this way, the first electric heating tube 330 can more effectively and quickly heat the water flowing in the water outlet pipe to increase the water output of the instant hot water outlet.

[0100] In one embodiment, a bending portion 331 is further provided at the free end of the first electric heating tube, and the bending portion is close to the water inlet of the water outlet pipe 220 and is located below the first water temperature sensor.

[0101] Specifically, the bent portion 331 has a larger heating area, thereby heating the water around the water inlet of the water outlet pipe 220 below the water inlet of the water outlet pipe 220 .

[0102] In another embodiment, the first water temperature sensor includes a normal temperature sensor (not shown) and an over-temperature sensor (not shown);

[0103] The electric control board 123 is configured to adjust the heating power of the first electric heating tube according to the water temperature detected by the normal temperature sensor;

[0104] The electric control board 123 is further configured to control the on and off of the first electric heating tube according to the water temperature detected by the over-temperature sensor.

[0105] Specifically, in actual use, when the user needs instant hot water, the electric control board 123 adjusts the heating power of the first electric heating tube according to the water temperature value detected by the normal temperature sensor, thereby meeting the accurate temperature control requirements.

[0106] At the same time, in the normal water supply mode, heating is mainly carried out through the second electric heating tube. In special cases, when the user continues to use water at a small flow rate, the first electric heating tube will continue to heat, and the temperature in the tank will continue to rise. When the over-temperature sensor measures a temperature exceeding 93°C, the second electric heating tube will be forced to shut down. When there is no water in the upper tank and it is plugged in for use, the second electric heating tube will dry burn. When the detected temperature exceeds 97 degrees Celsius, the power supply will be forced to cut off.

[0107] In another embodiment, in order to facilitate the installation of the electric control board 123, an electric appliance chamber assembly 120 is provided at one end of the housing 100, and the electric appliance chamber assembly 120 includes an end cover 121 and an inspection cover 122, the end cover 121 is provided with a recessed structure, a slot 1211 is provided in the recessed structure, and the end cover 121 is also provided with a plug-in channel 1212; the inspection cover 122 is provided on the end cover 121 and covers the recessed structure, and an electric appliance installation room is formed between the inspection cover 122 and the end cover 121; the electric control board 123 is located in the electric appliance installation room and inserted into the slot 1211.

[0108] In order to facilitate fixing of the electric control board, a fixing installation member 124 is further included. The fixing installation member 124 has an inserting portion 1241 and a limiting portion 1242 . The inserting portion 1241 is inserted into the inserting channel 1212 , and the limiting portion 1242 abuts against the edge of the electric control board 123 .

[0109] Specifically, the electric water heater is provided with an electrical room assembly 120 to house the electric control board 123 . During the installation of the electric control board 123 , the electric control board 123 is first inserted into the slot 1211 provided on the end cover 121 , and the electric control board 123 can be pre-assembled and positioned through the slot 1211 .

[0110] Then, the plug-in portion 1241 of the fixed mounting member 124 is inserted into the plug-in channel 1212 on the end cover 121, so that the fixed mounting member 124 is inserted and fixed on the end cover 121 through the plug-in portion 1241. At the same time, the limiting portion 1242 of the fixed mounting member 124 will block and abut against the outer side of the electric control board 123 to limit the electric control board 123 from being disengaged from the slot 1211.

[0111] By setting a slot 1211 on the end cover 121, the slot 1211 can meet the requirements of inserting and positioning the electric control board 123, and the plug-in channel 1212 set on the end cover 121 can be connected to the fixed installation component 124. After the plug-in portion 1241 of the fixed installation component 124 is inserted into the plug-in channel 1212, the limiting portion 1242 of the fixed installation component 124 will abut against the edge of the electric control board 123 to limit the electric control board 123 from being separated from the slot 1211, thereby realizing a screw-free design of the electric control board 123, reducing the assembly difficulty of the electric water heater and improving the assembly efficiency.

[0112] In one embodiment, a locking portion 1213 is further provided on the end cover 121, and a locking matching portion 1243 is provided at the end of the plug-in portion 1241;

[0113] After the plug-in portion 1241 is inserted into the plug-in channel 1212 , the locking portion 1213 is connected to the locking matching portion 1243 .

[0114] Specifically, in order to improve the installation reliability of the fixed installation component 124, for the plug-in portion 1241, after the plug-in portion 1241 is inserted into the plug-in channel 1212, the locking matching portion 1243 will also pass through the plug-in channel 1212 and cooperate with the locking portion 1213 to lock the fixed installation component 124, so that the plug-in portion 1241 of the fixed installation component 124 will not be detached from the plug-in channel 1212, so as to improve the reliability of the connection.

[0115] The locking portion 1213 and the locking matching portion 1243 may be physically expressed in various forms. For example, the locking portion 1213 and the locking matching portion 1243 are both protruding tooth structures, and the two can be locked together to achieve a locking effect.

[0116] In another embodiment, a positioning groove 1244 is provided on the limiting portion 1242 , and an edge of the electric control board 123 is stuck in the positioning groove 1244 .

[0117] Specifically, in order to improve the reliability of the limiting portion 1242 on the electric control board 123, a positioning groove 1244 is provided on the limiting portion 1242. After the fixed mounting member 124 is inserted into the plug-in channel 1212 through the plug-in portion 1241, the limiting portion 1242 will abut against the electric control board 123, and the electric control board 123 will be stuck in the positioning groove 1244.

[0118] In some embodiments, in order to improve the plugging reliability of the electric control board 123 , the slot 1211 includes two first slot bodies that are arranged opposite to each other, and the electric control board 123 is inserted between the two first slot bodies.

[0119] Specifically, during assembly, the two sides of the electric control board 123 are inserted into the corresponding first slots, and the first slots on both sides can be used to effectively limit the electric control board 123. In addition, the slot 1211 also includes a second slot, which is distributed between the two first slots and arranged opposite to the limiting portion 1242, and the electric control board 123 is also inserted into the second slot.

[0120] After the electric control board 123 is inserted into the first slot and assembled in place, the corresponding edge of the electric control board 123 will also be located in the slot. In this way, in cooperation with the limiting portion 1242, the four edges of the electric control board 123 are effectively positioned.

[0121] In another embodiment, a positioning rib 1214 may be further provided on the side wall of the recessed structure, and the positioning rib 1214 abuts against the electric control board 123 .

[0122] Specifically, the positioning rib 1214 can rest on the surface of the electric control board 123 , and the positioning rib 1214 and the positioning groove 1244 can further limit the electric control board 123 . The electric control board 123 is located in the area between the positioning rib 1214 and the positioning groove 1244 , thereby reducing the shaking of the electric control board 123 .

[0123] In another embodiment of the present application, in order to optimize the overall appearance, the electric water heater further includes a housing assembly 400, the housing assembly 400 includes an anti-electricity wall cover 410 and a cover plate 420, the anti-electricity wall cover 410 is provided with a first mounting opening 411, the cover plate 420 is provided with at least a mounting hole 421, and the cover plate 420 is detachably arranged in the first mounting opening 411;

[0124] The anti-electricity wall cover 410 is disposed on the housing 100 , the water inlet pipe 210 and the water outlet pipe 220 extend to the outside of the housing 100 , and the water inlet pipe 210 and the water outlet pipe 220 are respectively inserted into the installation holes 421 .

[0125] Specifically, during the actual assembly process, the inner liner 200 will be first assembled into the outer shell 100, and foam will form an insulation layer between the inner liner 200 and the outer shell 100. Then, the anti-electric wall cover 410 in the cover shell assembly 400 will be snapped onto the outer shell 100.

[0126] During the installation process, the water inlet pipe 210 and the water outlet pipe 220 will be inserted into the larger first installation port 411 formed by the anti-electrical wall cover 410. Since the water inlet pipe 210 and the water outlet pipe 220 can move relatively far in the first installation port 411, when assembling the anti-electrical wall cover 410, the position of the anti-electrical wall cover 410 can be adjusted as needed so as to facilitate and reliably assemble it onto the outer shell 100, thereby avoiding increased difficulty in assembly due to interference between the water inlet pipe 210 and the water outlet pipe 220 and the anti-electrical wall cover 410.

[0127] After the assembly operation of the anti-electricity wall cover 410 is completed, the cover plate 420 is assembled onto the anti-electricity wall cover 410 to cover the first installation opening 411 , and the water inlet pipe 210 and the water outlet pipe 220 pass through the corresponding installation holes 421 .

[0128] By providing a first installation port 411 on the anti-electricity wall cover 410 and providing a detachable cover plate 420 in the first installation port 411, in the actual assembly process, when the anti-electricity wall cover 410 is assembled on the outer shell 100, the cover plate 420 is first removed from the anti-electricity wall cover 410, so that the inlet and outlet water pipes 220 can be inserted into the first installation port 411 first, and the opening size of the first installation port 411 can be large enough to meet the displacement requirement when the anti-electricity wall cover 410 is assembled, and after the anti-electricity wall cover 410 is assembled in place, the cover plate 420 is assembled on the anti-electricity wall cover 410 to meet the covering requirement around the inlet and outlet water pipes 220, thereby reducing the assembly difficulty of the electric water heater and improving the assembly quality.

[0129] In one embodiment of the present application, the first mounting opening 411 is a strip-shaped structure and extends along the length direction of the housing 100 , and at least two mounting holes 421 are provided on the cover plate 420 , the water inlet pipe 210 is inserted into one of the mounting holes 421 , and the water outlet pipe 220 is inserted into the other mounting hole 421 .

[0130] Specifically, the cover plate 420 is provided with at least two mounting holes 421, and the mounting holes 421 respectively meet the mounting requirements of the water inlet pipe 210 and the water outlet pipe 220. As for the structural shape of the first mounting opening 411, in order to increase the adjustment range of the anti-electricity wall cover 410, the first mounting opening 411 is in a strip-shaped structure and extends along the length direction of the housing 100, so that the anti-electricity wall cover 410 can be mounted on the housing 100 from one side along the length direction of the housing 100 when being mounted. The first mounting opening 411 is relatively long, and can meet the requirement that the anti-electricity wall cover 410 will not interfere with the water inlet pipe 210 or the water outlet pipe 220 when being mounted.

[0131] In some embodiments, there may be multiple structural forms for the specific assembly method of the cover plate 420. For example, the cover plate 420 is fixed to the anti-electrical wall cover 410 by screw connection, or the cover plate 420 is clamped on the anti-electrical wall cover 410.

[0132] In another embodiment, the anti-electric wall cover 410 has a front panel 412, a side panel 413 and a bottom plate 414, the front panel 412 is arranged on the front edge of the bottom plate 414, the side panel 413 is arranged on the corresponding sides of the front panel 412 and the bottom plate 414, the bottom plate 414 is provided with the first mounting port 411, the front panel 412 is clamped on the outer shell 100, and the edge of the side panel 413 that fits with the outer shell 100 matches the outer contour of the outer shell 100.

[0133] Specifically, the anti-electricity wall cover 410 is mounted on the housing 100 through the front panel 412. The housing 100 is provided with an insertion hole 110, which is a bar-shaped hole, and the width of one end of the insertion hole 110 is smaller than the width of the other end; the front panel 412 is provided with a tongue 415, and the tongue 415 is inserted into the insertion hole 110.

[0134] The insertion hole 110 extends along the length direction of the housing 100. During assembly, the tongue 415 is inserted into the end of the insertion hole 110 with a larger width, and then the anti-electric wall cover 410 is pushed so that the tongue 415 is stuck on the end of the insertion hole 110 with a smaller width to complete the assembly.

[0135] In order to improve the reliability of the card installation, a card tongue 415 may be additionally configured on the side panel 413 to assist the card installation connection of the front panel 412 through the side panel 413 to improve the reliability of the assembly.

[0136] In one embodiment of the present application, a second installation opening 416 is disposed on the front panel 412 , and a detachable control panel 430 is disposed in the second installation opening 416 .

[0137] Specifically, the second installation opening 416 provided on the front panel 412 is used to install the control panel 430 , and the control panel 430 is installed in the second installation opening 416 by means of a snap-on screw connection or the like.

[0138] In another embodiment of the present application, a hidden cover 440 is further included. The hidden cover 440 is detachably disposed at the bottom of the anti-electricity wall cover 410 and covers the water inlet pipe 210 and the water outlet pipe 220 .

[0139] Specifically, in order to optimize the overall appearance, a hidden cover 440 can be set on the anti-electricity wall cover 410. The hidden cover 440 can shield the parts of the water inlet pipe 210 and the water outlet pipe 220 extending outside the anti-electricity wall cover 410, thereby optimizing the overall appearance of the water heater.

[0140] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, 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 any one or more embodiments or examples in a suitable manner.

[0141] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A magnesium rod assembly, characterized in that: include: Magnesium rod; Insulation parts; A fixed installation component, wherein the fixed installation component is configured to be fixedly installed on the inner tank of the water heater, and the magnesium rod is arranged on the fixed installation component through the insulating component; A conductive component is sealed and passes through the insulating component and is conductively connected to the magnesium rod and the fixed installation component respectively.

2. The magnesium rod assembly according to claim 1, characterized in that: The conductive component is a conductive cable, which is sealed in the insulating component and connected between the magnesium rod and the fixed installation component.

3. The magnesium rod assembly according to claim 1, characterized in that: The conductive component is a conductive rod; a plug hole is provided at one end of the magnesium rod, a first through hole is provided on the insulating component, and a second through hole is provided on the fixed installation component; The conductive rod passes through the second through hole and the first through hole in sequence and is inserted into the insertion hole. The conductive rod is conductively connected to the magnesium rod and the fixed installation component respectively.

4. The magnesium rod assembly according to claim 3, characterized in that: The magnesium rod, the insulating component and the fixed installation component are of a split structure. The insulating component is sleeved on the conductive component, and the fixed installation component is sleeved on the insulating component. A sealing ring is provided between the insulating component and the magnesium rod, and a sealing ring is provided between the insulating component and the fixed installation component.

5. The magnesium rod assembly according to claim 3, characterized in that: The insulating component is formed on the insulating component by injection molding, the conductive component penetrates the insulating component and is inserted into the insertion hole, the fixed installation component is sleeved on the insulating component, and a sealing ring is arranged between the insulating component and the fixed installation component.

6. The magnesium rod assembly according to claim 3, characterized in that: The insulating component is formed on the fixed installation component by injection molding, the insulating component and the fixed installation component are sleeved on the conductive rod, and a sealing ring is arranged between the insulating component and the magnesium rod.

7. The magnesium rod assembly according to claim 4 or 6, characterized in that: A retaining ring is arranged on the conductive rod; the retaining ring is abutted against the end of the magnesium rod and is clamped between the sealing ring and the magnesium rod.

8. The magnesium rod assembly according to claim 7, characterized in that: An insulating coating is also provided on the rod wall of the conductive rod, the insulating coating is adjacent to the retaining ring, and the portion of the conductive rod having the insulating coating is inserted into the insertion hole.

9. The magnesium rod assembly according to claim 8, characterized in that: At least the surface of the retaining ring in contact with the magnesium rod is also provided with the insulating coating.

10. The magnesium rod assembly according to claim 3, characterized in that: The end of the conductive component extending out of the fixed installation component is also provided with a connection terminal.

11. The magnesium rod assembly according to claim 1, characterized in that: The outer circumference of the fixed installation component is provided with an external thread; or the outer circumference of the end of the conductive component extending outside the fixed installation component is provided with an external thread.

12. An electric water heater, comprising an inner tank, characterized in that: It also includes a magnesium rod assembly as described in any one of claims 1 to 11; the fixed installation component of the magnesium rod assembly is arranged on the inner shell, and the magnesium rod of the magnesium rod assembly is arranged in the inner shell.

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