Electric water heater

Abstract

The utility model relates to the field of household appliances, in particular to an electric water heater which comprises a heating container, a water outlet portion and a water treatment component, the water outlet portion is formed at the bottom of the heating container, a water outlet channel is formed in the water outlet portion, and the water treatment component is used for conducting water quality treatment on water in the heating container. Wherein a threaded connector is formed on the outer wall of the heating container, an external thread is formed on the outer wall of the water treatment component, and the water treatment component is in threaded connection with the threaded connector; the water treatment part used for treating water in the heating cavity is connected to the heating container through the threads, an operator or a user can hold the water treatment part by hand to achieve quick disassembly and assembly of the water treatment part, the treatment part on the water treatment part is inserted into the heating cavity to treat the water in the heating cavity, the water quality is improved, and the user requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and specifically relates to an electric water heater. Background Art

[0002] Water heaters are household appliances commonly used in people's daily lives. Among them, electric water heaters can be divided into storage type electric water heaters and instant electric water heaters according to the heating power.

[0003] Instant electric water heaters do not require water storage, preheating and insulation. Hot water can flow out in a few seconds after opening the water outlet. It can be used immediately and stopped when not in use. It has a simple structure, easy operation, energy saving and electricity saving, and light size. With these advantages, it occupies a large share in the current market.

[0004] With the improvement of living standards, people's requirements for water quality are gradually increasing. The volume of instant electric water heaters is generally small, and the available space in the heating chamber is limited except for the fluid. The conventional water treatment structure will occupy a larger space in the heating chamber, and the installation and operation are inconvenient, making the water purification problem in instant electric water heaters difficult to solve. Utility Model Content

[0005] The utility model aims to provide an electric water heater to solve the problems existing in the prior art of the existing instant electric water heater, such as limited available space in the heating chamber, large existing water treatment structure which cannot be adapted to smaller electric water heaters, difficult installation, poor water treatment effect, etc.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an electric water heater, which comprises:

[0008] A heating container having a heating chamber formed therein;

[0009] A water outlet portion, which is formed at the bottom of the heating container, wherein a water outlet channel is formed in the water outlet portion, and a water inlet end of the water outlet portion extends into the heating chamber and is located at an upper position of the heating chamber;

[0010] a water treatment component, which at least partially extends into the water outlet channel and is used to treat the water in the heating container;

[0011] Wherein, a connecting portion is formed on the outer wall of the heating container, and the water treatment component is detachably connected to the outer wall of the heating container through the connecting portion.

[0012] Wherein, a threaded connection port is formed on the outer wall of the heating container, an external thread is formed on the outer wall of the water treatment component, and the water treatment component is threadedly connected to the threaded connection port.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] The water treatment component used to treat the water in the heating chamber is connected to the heating container through a connecting part. The operator or user can hold it to quickly disassemble and assemble the water treatment component. The processing part on the water treatment component is inserted into the heating chamber to treat the water in the heating chamber, which is beneficial to improve the water quality and meet user needs.

[0015] In some embodiments of the present application, the connecting portion is a threaded connection port formed on the heating container, the water treatment component includes an operating portion, an intermediate portion, and a processing portion connected in sequence, an external thread is formed on the outer wall of the intermediate portion, the water treatment portion extends into the heating chamber, and the water treatment component is threadedly connected to the heating container through the intermediate portion.

[0016] The processing part is a rod-shaped structure with a small size, and can be directly inserted into the heating chamber from the threaded connection port. It occupies a small space in the heating chamber, which is beneficial to improving space utilization.

[0017] In some embodiments of the present application, the water outlet portion is also formed with a water outlet interface extending out of the heating container, the threaded connection port is formed on the water outlet interface, the middle portion is detachably connected to the water outlet interface, and the processing portion extends from bottom to top into the water outlet channel.

[0018] A threaded connection port is formed on the water outlet interface, and the water treatment component is connected to the water outlet interface, which does not occupy additional space in the heating chamber, further improving the utilization rate of the heating chamber. The treatment part is located in the water outlet channel. During the water outlet process, the water flows through the treatment part, and water quality treatment can be achieved simultaneously.

[0019] In some embodiments of the present application, the water outlet interface is externally connected to a water outlet pipe, and a plurality of water outlet holes are dispersedly formed on the middle portion, and the water outlet holes are used to connect the water outlet channel and the water outlet pipe.

[0020] The design of the water outlet can avoid the influence of water treatment components on the water flow, and the space utilization rate is further improved.

[0021] In some embodiments of the present application, the threaded connection port is formed at the top of the heating container and is located directly above the water outlet portion, the middle portion is threadedly connected to the threaded connection port, and the processing portion extends from bottom to top into the water outlet channel.

[0022] The threaded connection port is arranged at the top of the heating container, which does not occupy additional space in the heating chamber, further improving the utilization rate of the heating chamber. The processing part is located in the water outlet channel. During the water outlet process, the water flows through the processing part, and water quality treatment can be achieved simultaneously.

[0023] In some embodiments of the present application, the operating part is made of insulating material or an insulating layer is formed on the surface of the operating part.

[0024] During the process of disassembling and installing the water treatment component, the operator or user holds the operating unit to rotate and install or remove the water treatment component, which is beneficial to improving the safety of the operation.

[0025] In some embodiments of the present application, a plug-in portion is formed on the middle portion, and the operating portion and the processing portion are respectively plugged into two sides of the middle portion.

[0026] The middle part, the operating part and the processing part are detachably connected, which is conducive to the individual processing of each part, with low processing cost and high efficiency.

[0027] In some embodiments of the present application, an adsorption material is disposed in the processing portion.

[0028] In some embodiments of the present application, the heating container includes a body and a cover, the top of the body is an open structure, the cover is detachably connected to the top of the body, and the threaded connection port is formed on the cover.

[0029] The cover body can be detachably connected to the tank body, which reduces the difficulty of processing, makes the heating components and water treatment components more convenient to install, and also makes the processing and forming of the threaded connection port more convenient.

[0030] In some embodiments of the present application, a connection protrusion extending upward is formed on the cover body, and the threaded connection port is formed on the connection protrusion.

[0031] The design of the connecting protrusion can increase the thread length of the threaded connection port, making the connection stability between the middle portion and the threaded connection port higher, which helps to improve the structural strength.

[0032] In some embodiments of the present application, a connecting outer edge is formed on the peripheral side of the cover body, a connecting protrusion is formed on the outer wall of the bladder body, a snap portion is formed on the connecting outer edge, and the cover body is detachably connected to the connecting protrusion via the snap portion.

[0033] The cover and the body are connected by snap fasteners, which helps to reduce the damage to the body and the cover by mechanical connections such as fastening screws, and has better sealing and structural strength, which helps to simplify the assembly process and reduce component processing costs;

[0034] In some embodiments of the present application, the heating container is also detachably connected to a descaling assembly, which includes a descaling fixing portion, a hand-held portion, and a descaling body, wherein the hand-held portion and the descaling body are respectively mounted on both sides of the fixing portion.

[0035] The descaling body is made of a highly active metal material such as a magnesium rod. The descaling component is used to adsorb scale in the heating chamber, reduce the frequency of cleaning the heating chamber, and is beneficial to improving water quality.

[0036] In some embodiments of the present application, a fixing protrusion is formed on the cover body, a threaded hole is formed in the fixing protrusion, an external thread is formed on the outer periphery of the descaling fixing part, and the descaling fixing part is threadedly connected to the fixing protrusion.

[0037] The fixed protrusion helps to increase the connection contact area between the descaling component and the cover body, and helps to improve the connection strength.

[0038] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the electric water heater proposed by the utility model;

[0041] Figure 2 It is a schematic diagram of the connection structure between the heating container and the heating element;

[0042] Figure 3 yes Figure 2 Split diagram;

[0043] Figure 4 is a schematic diagram of the heating container structure;

[0044] Figure 5 is a schematic cross-sectional view of a heating container;

[0045] Figure 6 1. is a schematic diagram of the cover structure;

[0046] Figure 7 This is one of the schematic diagrams of the split structure of the water treatment component and the heating container;

[0047] Figure 8It is one of the schematic diagrams of the installation structure of the water treatment components and the heating container;

[0048] Fig. 9 It is one of the schematic diagrams of the structure of water treatment components;

[0049] Fig.10 It is one of the schematic cross-sections of the heating vessel;

[0050] Fig.11 This is the second schematic diagram of the installation structure of the water treatment component and the heating container;

[0051] Fig.12 This is the second schematic diagram of the separation structure of the water treatment component and the heating container;

[0052] Fig.13 This is the second schematic diagram of the water treatment component structure;

[0053] Fig.14 It is one of the schematic cross-sections of the heating vessel;

[0054] Fig.15 It is a schematic diagram of the structure of the descaling component;

[0055] Fig.16 This is a schematic diagram of the bypass part and the switch valve;

[0056] In the figure,

[0057] 100. Shell;

[0058] 200. Heating container;

[0059] 210, gallbladder body; 211, connecting convex part; 212, hanging ear;

[0060] 220, cover body; 221, connecting outer edge; 222, sleeve portion; 223, fixing protrusion; 224, upper connecting portion;

[0061] 230, water outlet; 231, water inlet; 232, water outlet interface;

[0062] 240, water inlet;

[0063] 300, driving assembly; 310, motor; 320, screw; 330, middle plate;

[0064] 400, heating element; 410, connecting portion; 411, sealing groove portion; 420, heating portion;

[0065] 500, descaling assembly; 510, hand-held portion; 520, descaling fixing portion; 530, descaling body;

[0066] 600, bypass portion; 610, switch valve; 611, rotating handle; 612, rotating shaft; 613, valve plate;

[0067] 700, water treatment component; 710, operating part; 720, middle part; 730, processing part. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0069] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0071] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0073] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0074] 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 prepare hot water.

[0075] 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.

[0076] For the water tank of the electric water heater, the water tank generally includes an outer shell and a heating container, and an insulation layer is formed between the outer shell and the heating container. Among them, the outer shell is generally made of plastic material to meet the design requirements of beautiful and diverse shapes; the heating container can be made of metal or plastic according to needs.

[0077] In addition, the insulation layer formed between the outer shell and the heating container, 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.

[0078] Among them, for the heating container using a metal body, the interior of the heating container 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.

[0079] 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 heating containers. The size of the magnesium rod is directly related to the length of time the heating container is protected and the size of the protection effect. The larger the magnesium rod, the better the protection effect and the longer the protection time.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] refer to Figure 1-Figure 3 The utility model provides an electric water heater, which includes a shell 100 and a heating container 200.

[0085] A heating chamber is formed in the heating container 200, and water is stored in the heating chamber. The heating container 200 is a cylindrical structure as a whole. The heating container 200 includes a gallbladder body 210 and a cover body 220. The top of the gallbladder body 210 is an open structure, and the cover body 220 is detachably connected to the top of the gallbladder body 210.

[0086] The outer surface of the body 210 is composed of a vertical peripheral side surface and a bottom arc surface. The upper part of the outer wall of the heating container 200 is an opening, and the cover body 220 is covered on the heating container 200.

[0087] Vertical and transverse reinforcing ribs protruding outward are formed on the peripheral side surface of the gallbladder body 210 to improve the structural strength of the gallbladder body 210 .

[0088] The cover body 220 is detachably connected to the tank body 210, which reduces the difficulty of processing and makes the installation of structures such as the heating element 400 and the water treatment component 700 more convenient.

[0089] The outer surface of the cover body 220 is composed of a mounting plane or a top arc surface.

[0090] Combination Figure 6 A connecting outer edge 221 is formed on the peripheral side of the cover body 220, a connecting protrusion 211 is formed on the outer wall of the gallbladder body 210, a buckle portion is formed on the connecting outer edge 221, and the cover body 220 is detachably connected to the connecting protrusion 211 through the buckle portion.

[0091] The connecting protrusion 211 is a continuous structure or a discontinuous structure arranged on the peripheral side of the outer wall of the gallbladder body 210 , and mainly serves to connect with the cover body 220 .

[0092] The cover body 220 and the gallbladder body 210 are connected by snap-fit ​​connection, which helps to reduce the damage to the gallbladder body 210 and the cover body 220 caused by mechanical connections such as fastening screws, and has better sealing and structural strength, which helps to simplify the assembly process and reduce component processing costs.

[0093] In addition, in some other embodiments, the cover body 220 and the gallbladder body 210 may be connected by an interference fit, and the connecting outer edge 221 is connected to the outer side of the connecting protrusion 211 by an interference fit.

[0094] refer to Figure 4 , Figure 5 The heating container 200 is externally connected to a water inlet pipe and a water outlet pipe. The water inlet pipe is used to transport external water into the heating chamber, and the water outlet pipe is connected to the user terminal to output the heated water to the user terminal such as a shower.

[0095] Specifically, a water outlet 230 is formed at the bottom of the heating container 200 , and a water inlet end 231 of the water outlet 230 extends into the heating cavity and is located at an upper position of the heating cavity.

[0096] Since the heated water tank moves upwards in the heating chamber, the water inlet end 231 on the water outlet portion 230 is located at the upper position of the heating chamber, which is beneficial to increase the water outlet speed of hot water and reduce the waiting time.

[0097] Combination Fig.12 The water outlet portion 230 is formed with a water outlet interface 232 extending out of the heating container 200 for connecting a water outlet pipe for outputting heated water.

[0098] Reference again Figure 4 , Figure 5 In some embodiments of the present application, the water inlet pipe is connected to the side wall of the heating container 200. Specifically, a water inlet portion 240 is formed on the side wall of the heating container 200, and the water inlet portion 240 extends outward along the side wall of the heating container 200 to facilitate docking with the water inlet pipe.

[0099] The water inlet 240 is communicated with the lower part of the heating chamber, and the water inlet 240 is externally connected to a water inlet pipe for introducing an external water source into the heating chamber.

[0100] The water inlet 240 is connected to the lower part of the heating chamber to prevent the newly input cold water from being directly output from the water inlet end 231 of the water outlet 230 to the user end without being heated, thereby affecting the heating effect.

[0101] The heating element 400 is a main component for heating water in the heating chamber. The heating element 400 includes a heating portion 420 and a connecting portion 410 . The connecting portion 410 mainly serves to connect the heating portion 420 .

[0102] refer to Figure 3 The heating part 420 is specifically a heating tube. The heating part 420 extends into the heating inner cavity under the action of the connecting part 410 and is used to heat the water in the heating cavity. The heating part 420 is connected to the power supply module through the connecting part 410.

[0103] refer to Figure 7 , Figure 8 A water treatment component 700 is provided in the heating chamber. The water treatment component 700 is configured to perform water quality treatment on the water in the heating container 200, so as to purify the water or increase the mineral components beneficial to the human body.

[0104] Specifically, the water treatment component 700 includes an operating portion 710 , a middle portion 720 and a processing portion 730 which are connected in sequence. The water processing portion 730 extends into the heating chamber and is used to perform water quality treatment on the water in the heating container 200 .

[0105] The water treatment unit 730 may include adsorption materials such as activated carbon, or may be configured to include materials that can increase minerals that are beneficial to the human body.

[0106] In order to facilitate the installation of the water treatment component 700, reduce the difficulty of assembly, improve the assembly efficiency, and not occupy additional space.

[0107] A connection portion is formed on the outer wall of the heating container 200 , and the connection portion is specifically a threaded connection port. An external thread is formed on the outer wall of the middle portion 720 , and the water treatment component 700 is threadedly connected to the threaded connection port through the middle portion 720 .

[0108] The water treatment component 700 for treating the water in the heating chamber is threadedly connected to the heating container 200 via the middle part 720. The operator or user can quickly disassemble and assemble the water treatment component by holding it. The processing part 730 on the water treatment component 700 is inserted into the heating chamber to treat the water in the heating chamber, which is beneficial to improve the water quality and meet user needs.

[0109] The processing part 730 is a rod-shaped structure with a small size. It can be directly inserted into the heating chamber from the threaded connection port. It occupies a small space in the heating chamber, which is beneficial to improving space utilization.

[0110] refer to Fig. 9 In some embodiments of the present application, the middle portion 720 is a cylindrical structure with plug-in portions formed on both ends thereof, and the operating portion 710 and the processing portion 730 are plugged into the two sides of the middle portion 720 respectively.

[0111] In addition, the operating portion 710 and the processing portion 730 may also be fixed on both sides of the middle portion 720 by other mechanical connection methods.

[0112] The middle portion 720, the operating portion 710 and the processing portion 730 are detachably connected, which is conducive to the individual processing of each component, with low processing cost and high efficiency.

[0113] refer to Figure 7-Figure 10In some embodiments of the present application, the water treatment component 700 is installed on the top of the heating container 200. Specifically, a threaded connection port is formed on the top of the heating container 200. An upper connection portion 224 extending outward is formed on the top of the heating container 200. The upper connection portion 224 is located directly above the water outlet portion 230. The middle portion 720 is threadedly connected to the threaded connection port, and the treatment portion 730 extends from bottom to top into the water outlet channel.

[0114] The threaded connection port is arranged at the top of the heating container 200, which does not occupy additional space in the heating chamber, further improving the utilization rate of the heating chamber. The processing part 730 is located in the water outlet channel. During the water outlet process, the water flows through the processing part 730, and water quality treatment can be achieved simultaneously.

[0115] In an embodiment where the threaded connection port is formed on the top of the heating container 200 , specifically, the threaded connection port is formed on the cover 220 .

[0116] The cover body 220 is detachably connected to the tank body 210, which reduces the difficulty of processing, makes the heating element 400 and the water treatment component 700 and other structures more convenient to install, and also makes it easier to process and form the threaded connection port.

[0117] refer to Figure 11-Figure 14 In some embodiments of the present application, the water treatment component 700 is detachably connected to the bottom of the heating container 200, and is specifically installed on the water outlet 230.

[0118] The water outlet portion 230 is also formed with a water outlet interface 232 extending out of the heating container 200, a threaded connection port is formed on the water outlet interface 232, the middle portion 720 is detachably connected to the water outlet interface 232, and the processing portion 730 extends from bottom to top into the water outlet channel.

[0119] A threaded connection port is formed on the water outlet interface 232, and the water treatment component 700 is connected to the water outlet interface 232, without occupying additional space in the heating chamber, further improving the utilization rate of the heating chamber. The processing unit 730 is located in the water outlet channel. During the water outlet process, the water flows through the processing unit 730, and water quality treatment can be achieved simultaneously.

[0120] refer to Fig.13 In order to avoid the influence of the water treatment component 700 on the water flow of the outlet water and further improve the space utilization, in some embodiments of the present application, an external water outlet pipe is connected to the water outlet interface 232, and a plurality of water outlet holes are dispersedly formed on the middle part 720, and the water outlet holes are used to connect the water outlet channel and the water outlet pipe.

[0121] The heated water enters the water outlet channel from the water inlet end 231 on the water outlet portion 230 , is processed by the water treatment component 700 , and is output to the water outlet pipe through the water outlet hole on the middle portion 720 .

[0122] In some embodiments of the present application, the operating portion 710 is made of an insulating material or an insulating layer is formed on the surface of the operating portion 710 .

[0123] During the process of installing or removing the water treatment component 700 , the operator or user holds the operating unit 710 to rotate and install or remove the water treatment component 700 , which is beneficial to improving the safety of the operation.

[0124] refer to Figure 1 The heating element 400 is also connected to the driving assembly 300 , and a mounting opening is formed on the heating container 200 . The heating portion 420 is configured to move up and down in the heating inner cavity along the mounting opening under the action of the driving assembly 300 .

[0125] refer to Figure 2 , Figure 3 as well as Figure 6 Specifically, the installation opening is formed on the cover body 220 , and a sleeve portion 222 is formed on the installation opening, and two ends of the sleeve portion 222 extend out of two sides of the cover body 220 respectively.

[0126] A connecting passage is formed in the sleeve portion 222 , and the connecting portion 410 is connected to the connecting passage. Under the action of the driving assembly 300 , the connecting portion 410 can move up and down in the connecting passage.

[0127] The design of the sleeve portion 222 is beneficial to increasing the contact area between the connecting portion 410 on the heating element 400 and the cover body 220, and the connection strength is better.

[0128] Combination Figure 1 In order to realize the up and down movement of the heating element 400 relative to the heating container 200, an active inner cavity is formed between the heating container 200 and the outer shell 100, and the driving component 300 is fixed in the active inner cavity.

[0129] Specifically, the driving component 300 is a linearly retractable driving structure such as an electric push rod. The driving component 300 is fixed to the top of the housing 100 , and the retractable end of the driving component 300 is downwardly connected to the connecting portion 410 of the heating element 400 .

[0130] In addition, the driving assembly 300 may also include a motor 310 and a screw 320 connected to the output end of the motor. One end of the heating element 400 extending out of the heating container 200 is connected to an intermediate plate 330, a threaded hole is provided on the intermediate plate 330, and the screw 320 is threadedly connected to the intermediate plate 330.

[0131] After the motor 310 is turned on, it drives the screw rod 320 to rotate. Under the action of the threaded connection, the middle plate 330 drives the heating element 400 to move up and down relative to the screw rod 320, thereby achieving the purpose of moving the heating element 400 up and down.

[0132] Reference again Figure 3 In some embodiments of the present application, at least a portion of the heating portion 420 is spiral-shaped to increase the contact area with the water in the heating chamber and improve the heating efficiency.

[0133] In some embodiments of the present application, in order to improve the sealing effect of the heating container 200, at least one sealing groove 411 is formed on the inner wall of the sleeve portion 222 along the axial direction of the sleeve portion 222, and a sealing portion is installed in the sealing groove 411, and the sealing portion is used to seal the gap between the connecting portion 410 and the connecting channel.

[0134] Another sealing method is: at least one sealing groove 411 is provided on the outer wall of the connecting part 410 along the length direction of the connecting part 410, and the sealing member is connected to the connecting part 410. When the connecting part 410 moves up and down relative to the sleeve part 222, the sealing member also moves up and down relative to the inner wall of the sleeve part 222.

[0135] During the up and down movement of the connecting portion 410 relative to the sleeve portion 222, the sealing portion is always between the connecting portion 410 and the connecting channel, which is beneficial to improving the sealing effect, preventing water output in the heating chamber or external impurities from entering the heating chamber, and improving safety.

[0136] The electric heater involved in the present application has a heating element 400 that can be moved up and down in the heating chamber through the driving component 300. During heating, the driving component 300 moves the heating element 400 to the upper position of the heating chamber so that the heating element 400 is close to the water inlet end 231 of the water outlet part 230. When the water outlet valve is opened, the heating element 400 heats the surrounding water, and the heated water can directly enter the water outlet part 230 from the water inlet end 231 to increase the heating speed.

[0137] When the heating is finished, the driving assembly 300 moves the heating element 400 to the lower position of the heating chamber, so that the heating element 400 is located away from the water inlet end 231 of the water outlet part 230 to reduce the residual heat temperature rise and avoid the hot water heated by the residual heat of the heating tube being directly output when the user opens the water outlet valve again, thereby scalding the user. The heating efficiency of the entire electric water heater is higher, more energy-saving and safer.

[0138] In addition, when the water flow in the heating chamber contacts the heating element 400 or the iron heating chamber body, scale will form in the heating chamber body and the inner wall of the heating container 200 will be corroded.

[0139] refer to Figure 3 , Fig.15 The heating chamber involved in the present application is also provided with a descaling assembly 500, which ensures the cleanliness of the water flow in the heating chamber and the heating chamber without affecting the performance of the heating cup.

[0140] Specific reference Fig.15 The descaling assembly 500 includes a descaling fixing portion 520, a hand-held portion 510, and a descaling body 530. The hand-held portion 510 and the descaling body 530 are respectively installed on both sides of the fixing portion.

[0141] The descaling body 530 is made of a highly active metal material such as a magnesium rod. The descaling component 500 is used to reduce rust on the working parts in the heating chamber, play a role in rust removal, reduce the frequency of maintenance and cleaning of the parts in the heating chamber, and is beneficial to improving water quality.

[0142] In some embodiments of the present application, a fixing protrusion 223 is formed on the cover body 220 , a threaded hole is formed in the fixing protrusion 223 , an external thread is formed on the outer periphery of the descaling fixing part 520 , and the descaling fixing part 520 is threadedly connected to the fixing protrusion 223 .

[0143] The fixing protrusion 223 helps to increase the connection contact area between the descaling assembly 500 and the cover body 220, and helps to improve the connection strength.

[0144] The grip portion 510 is made of an insulating material or an insulating layer is formed on the surface of the operating portion 710 .

[0145] During the process of disassembling and assembling the water treatment component 700 , the operator or user holds the handheld portion 510 to rotate and install or remove the descaling assembly 500 , which is beneficial to improving the safety of the operation.

[0146] The fixed part, the hand-held part 510 and the descaling body 530 in the descaling component 500 can also be an integrally formed structure made of a highly active metal material such as a magnesium rod. An insulating layer is provided on the outer wall corresponding to the hand-held part 510, and the outer side of the position corresponding to the fixed part can be processed into an external thread.

[0147] It should be noted that the diameter of the position corresponding to the fixing portion is slightly larger than the diameter of the descaling body 530 to avoid interference between the descaling body 530 and the threaded hole during installation.

[0148] refer to Figure 6 In some embodiments of the present application, a embossing and / or reinforcing ribs are formed on the cover body 220 to improve the structural strength of the cover body 220 .

[0149] The sleeve portion 222 , the fixing protrusion 223 and other structures are formed on the downwardly extending profile, which is beneficial to reducing the overall height.

[0150] When an electric water heater is not used for a long time, the water quality in the heating chamber will drop sharply over time, affecting the water quality of users. In order to ensure the water quality, the water heater needs to be disassembled and cleaned after a long period of non-use, which affects the life of the electric water heater.

[0151] refer to Figure 2 , Figure 3 ,as well as Fig.16 In order to solve the above-mentioned problem, in some other embodiments of the present application, a bypass portion 600 is further provided at the bottom of the heating container 200 to discharge the accumulated water in the heating chamber before it is not used for a long time.

[0152] In some other embodiments of the present application, an extension section extending to the outside of the heating container 200 is further formed on the water outlet portion 230, and the extension section extends out of the outer wall of the heating container 200 by a certain length.

[0153] The outlet pipe is connected directly to the end of the extension section.

[0154] In this embodiment, a bypass portion 600 is provided between the heating container 200 and the extension section. A bypass channel for connecting the heating chamber and the extension section is formed in the bypass portion 600. A switch valve 610 is provided in the bypass channel for controlling the switch of the bypass channel.

[0155] When the water heater is not used for a long time, the switch valve 610 is opened, the bypass channel is opened, and the remaining accumulated water in the heating chamber is discharged through the bypass channel to prevent the accumulated water from deteriorating in the heating chamber for a long time, breeding bacteria, and affecting the water quality for subsequent use;

[0156] Specific reference Fig.16 The switch valve 610 includes a rotating handle 611, a rotating shaft 612 and a valve plate 613. The rotating handle 611 is located outside the bypass portion 600, the rotating shaft 612 extends into the bypass channel, and the valve plate 613 is fixed on the rotating shaft 612. As the user or operator rotates the rotating handle 611, the valve plate 613 rotates in the bypass channel to open or close the bypass channel.

[0157] In addition, the bypass portion 600 is also helpful in avoiding risks such as scalding caused by excessive temperature rise due to residual heat. When the water is stopped for a period of time and heated again, the switch valve 610 is opened for a predetermined time, and the lower temperature water at the bottom of the heating chamber is mixed into the water outlet portion 230 from the bypass channel and mixed with the output hot water, which helps to avoid the water temperature being too high after the residual heat temperature rises.

[0158] In some embodiments of the present application, the bypass portion 600 is connected to the bottom of the heating container 200 to discharge the residual water in the heating chamber.

[0159] The bypass portion 600 is connected to the bottom of the heating container 200, which is conducive to completely draining the water in the heating chamber and avoiding water accumulation in the heating chamber.

[0160] The bypass portion 600 is a bent pipe structure as a whole, which is integrally formed with the heating container 200, or the bypass portion 600 is manufactured separately, a bottom port is opened at the bottom of the heating container 200, and a side port is provided on the side wall of the extension section. The bypass portion 600 is connected between the heating container 200 and the extension section by welding or other means.

[0161] The bypass portion 600 is manufactured separately, which helps to reduce the difficulty of processing. However, the assembly process has high requirements on sealing performance, and the sealing performance of the connection needs to be ensured.

[0162] refer to Figure 2 In some embodiments of the present application, a lifting ear 212 is formed on the peripheral side of the shell 100 to facilitate lifting the heating container 200 during installation or disassembly.

[0163] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0164] The above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An electric water heater, characterized in that: include: A heating container having a heating chamber formed therein; A water outlet portion, which is formed at the bottom of the heating container, wherein a water outlet channel is formed in the water outlet portion, and a water inlet end of the water outlet portion extends into the heating chamber and is located at an upper position of the heating chamber; a water treatment component, which at least partially extends into the water outlet channel and is used to treat the water in the heating container; Wherein, a connecting portion is formed on the outer wall of the heating container, and the water treatment component is detachably connected to the outer wall of the heating container through the connecting portion.

2. The electric water heater according to claim 1, characterized in that: The connecting portion is a threaded connection port formed on the heating container, the water treatment component includes an operating portion, an intermediate portion and a treatment portion which are connected in sequence, an external thread is formed on the outer wall of the intermediate portion, the water treatment portion extends into the heating chamber, and the water treatment component is threadedly connected to the heating container via the intermediate portion.

3. The electric water heater according to claim 2, characterized in that: The water outlet portion is also formed with a water outlet interface extending out of the heating container, the threaded connection port is formed on the water outlet interface, the middle portion is detachably connected to the water outlet interface, and the processing portion extends from bottom to top into the water outlet channel.

4. The electric water heater according to claim 3, characterized in that: The water outlet interface is externally connected to a water outlet pipe, and a plurality of water outlet holes are dispersedly formed on the middle portion, and the water outlet holes are used to connect the water outlet channel and the water outlet pipe.

5. The electric water heater according to claim 2, characterized in that: The threaded connection port is formed at the top of the heating container and is located directly above the water outlet portion. The middle portion is threadedly connected to the threaded connection port. The processing portion extends from bottom to top into the water outlet channel.

6. The electric water heater according to claim 2, characterized in that: The operating portion is made of an insulating material or an insulating layer is formed on the surface of the operating portion.

7. The electric water heater according to claim 2, characterized in that: The middle part is formed with an inserting part, and the operating part and the processing part are respectively inserted into two sides of the middle part.

8. The electric water heater according to claim 4, characterized in that: The heating container comprises a body and a cover, the top of the body is an open structure, the cover is detachably connected to the top of the body, and the threaded connection port is formed on the cover; A connecting protrusion extending upward is formed on the cover body, and the threaded connecting port is formed on the connecting protrusion.

9. The electric water heater according to claim 8, characterized in that: The heating container is also detachably connected with a descaling assembly, which includes a descaling fixing portion, a hand-held portion, and a descaling body. The hand-held portion and the descaling body are respectively mounted on both sides of the fixing portion.

10. The electric water heater according to claim 9, characterized in that: A fixing convex portion is formed on the cover body, a threaded hole is formed in the fixing convex portion, an external thread is formed on the outer periphery of the descaling fixing portion, and the descaling fixing portion is threadedly connected to the fixing convex portion.

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