Electric water heater

Abstract

The utility model relates to the technical field of household appliances, and provides an electric water heater which comprises an inner container, a heating assembly and a water inlet and outlet assembly. The heating assembly comprises a first mounting part and a heating part, the first mounting part is connected to the bottom of the inner container, and the heating part is arranged on the first mounting part and extends to the water storage cavity; the water inlet and outlet assembly is independent of the heating assembly and provided with a water inlet pipeline and a water outlet pipeline, the water inlet pipeline communicates with the water storage cavity and is suitable for feeding water into the water storage cavity, and the water outlet pipeline communicates with the water storage cavity and the outside and is suitable for discharging water to the outside. The water inlet and outlet assembly independent of the heating assembly ensures that the drying process of the heating assembly does not affect parts made of heat-labile materials (such as insulating materials) in the water inlet and outlet assembly, and the service life of the water inlet and outlet assembly is effectively prolonged. And the first mounting piece is connected to the bottom of the inner container, so that a maintenance space does not need to be reserved, and embedded or semi-embedded mounting of the electric water heater is realized.

Description

Technical Field

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

[0002] In the related art, the water inlet pipe, water outlet pipe and heating element of the electric water heater are integrated and installed on the same flange to achieve the effect of easy disassembly and assembly. However, the heating element needs to be dried during the production process, which causes damage to other integrated components on the flange (such as the water inlet pipe and the water outlet pipe are usually connected to the anti-electric wall component containing insulating material), affecting the overall service life of the electric water heater. In addition, the disassembly and assembly of the heating component requires reserved disassembly and assembly space, which is not conducive to the embedded or semi-embedded design of the electric water heater. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes an electric water heater, which integrates the heating element with the first mounting element, so as to facilitate disassembly and assembly from the inner tank, and does not require the components on the first mounting element to avoid the drying process of the heating element, thereby effectively improving production efficiency; and the first mounting element is connected to the bottom of the inner tank, so that no maintenance space is reserved, and the electric water heater can be embedded or semi-embedded.

[0004] The electric water heater according to the embodiment of the utility model comprises:

[0005] An inner tank, wherein a water storage cavity is formed inside;

[0006] A heating assembly, comprising a first mounting member and a heating member, wherein the first mounting member is connected to the bottom of the inner pot, and the heating member is arranged on the first mounting member and extends to the water storage chamber;

[0007] The water inlet and outlet assembly is independent of the heating assembly and is provided with a water inlet pipe and a water outlet pipe. The water inlet pipe is connected with the water storage chamber and is suitable for filling water into the water storage chamber. The water outlet pipe connects the water storage chamber with the outside world and is suitable for transporting the water in the water storage chamber to the outside world.

[0008] According to the electric water heater of the embodiment of the utility model, the external water source enters the water storage chamber through the water inlet pipe of the water inlet and outlet assembly, the heating assembly heats the water in the water storage chamber to form hot water, and the hot water flows out from the water outlet pipe of the water inlet and outlet assembly to the receiving components (mixing valve, shower head, etc.).

[0009] According to the electric water heater of the embodiment of the utility model, the components related to water heating in the electric water heater (such as the heating tube) are integrated and installed on the first installation component, so as to facilitate the disassembly and assembly of the heating component from the inner tank; and the heating component needs to be dried during production, and the inlet and outlet water components arranged independently of the heating component ensure that the drying process of the heating component will not affect the components made of heat-resistant materials (such as insulating materials) in the inlet and outlet water components, thereby effectively improving the service life of the inlet and outlet water components.

[0010] In addition, the inner tank is usually installed above the wall to facilitate the water in the water storage chamber to flow out under the action of gravity for user use. Therefore, the bottom of the inner tank, that is, the side of the inner tank facing the user, has a certain moving space. During the process of disassembling and assembling the heating component, the moving space meets the movement requirements of the heating component.

[0011] Compared with the prior art in which the heating component is arranged on the side of the inner tank, it is avoided to reserve maintenance space at both ends of the inner tank to meet the disassembly, assembly and movement requirements of the heating component, thereby solving the problem of insufficient maintenance space for the electric water heater; and since there is no need to reserve maintenance space, semi-embedded installation or fully embedded installation of the electric water heater can be achieved, which effectively increases the activity space on the user side, makes the indoor space appear more tidy and spacious, and the overall visual effect is more beautiful, which is conducive to improving the quality and style of interior decoration; it effectively reduces the dead corners and hard-to-clean areas of the electric water heater, and facilitates daily cleaning and maintenance.

[0012] According to an embodiment of the utility model, the heating assembly further includes a temperature measuring tube, and the first mounting member is a flange plate, on which mounting positions for the temperature measuring tube and the heating member are arranged.

[0013] According to an embodiment of the utility model, the water inlet and outlet assembly is located in the middle of the bottom of the inner pot, and the heating assembly is arranged on one side of the water inlet and outlet assembly along the extension direction of the inner pot.

[0014] According to one embodiment of the utility model, the water inlet and outlet assembly includes a water outlet pipe, and the inlet of the water outlet pipe extends to the top area of ​​the water storage chamber;

[0015] The inner pot includes an upper inner pot and a lower inner pot arranged in a vertical direction. The upper inner pot and the lower inner pot are connected by a first channel, which points from the upper inner pot to the lower inner pot. The cross-sectional area of ​​the first channel is smaller than the cross-sectional area of ​​the upper inner pot or the lower inner pot. The first channel is suitable for the heating element or the water outlet pipe to pass through.

[0016] According to one embodiment of the utility model, the heating element includes a first heating element, which extends from the first mounting element to the top area of ​​the water storage chamber; the first heating element is provided with an extension section, a vertical section and a spiral coil section connected in sequence, and the spiral coil section is located in the top area of ​​the water storage chamber.

[0017] According to an embodiment of the utility model, in the case where a water outlet pipe is provided, the extension section is provided at the bottom area of ​​the water storage chamber, and the extension direction of the extension section is from the first mounting member to the water outlet pipe.

[0018] According to an embodiment of the utility model, the electric water heater further comprises a sewage pipe suitable for conveying the water in the water storage chamber to the outside;

[0019] The sewage pipe and the heating component are respectively located on both sides of the water inlet and outlet components.

[0020] or,

[0021] The sewage discharge pipeline is located on a side of the heating component away from the extension section.

[0022] According to an embodiment of the utility model, at least part of the water inlet pipeline forms a water inlet anti-electrical wall pipeline, and at least part of the water outlet pipeline forms a water outlet anti-electrical wall pipeline;

[0023] The water inlet and outlet assembly includes a water circuit plate, which is provided with a water inlet, a water outlet, the water inlet anti-electricity wall pipeline and the water outlet anti-electricity wall pipeline; the water inlet is connected to the water storage chamber through the water inlet anti-electricity wall pipeline, and the water outlet is connected to the water storage chamber through the water outlet anti-electricity wall pipeline.

[0024] According to an embodiment of the utility model, a core tube is provided on the first side of the waterway plate, and the core tube is at least partially provided in the water storage cavity, and is suitable for connecting the water storage cavity with the water outlet. Along the water flow direction, the pipeline between the inlet of the core tube and the water outlet forms the water outlet anti-electric wall pipeline;

[0025] A sleeve is sleeved on the outer side of the core tube, and a first flow channel is formed between the sleeve and the core tube. Along the water flow direction, the outlet of the first flow channel is connected to the water storage chamber, and the pipeline connected between the outlet of the first flow channel and the water inlet forms the water inlet anti-electric wall pipeline.

[0026] According to an embodiment of the utility model, the water inlet and outlet assembly further includes a second mounting member, the second mounting member is connected to the inner tank, and the sleeve is connected to the second mounting member and extends to the water storage chamber.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is one of the cross-sectional views of the electric water heater provided by the embodiment of the utility model;

[0030] Figure 2 This is the second cross-sectional view of the electric water heater provided by the embodiment of the utility model;

[0031] Figure 3 It is a front view of a heating assembly of an electric water heater provided by an embodiment of the utility model;

[0032] Figure 4 It is a top view of a heating assembly of an electric water heater provided by an embodiment of the utility model;

[0033] Figure 5 This is the third cross-sectional view of the electric water heater provided by the embodiment of the utility model;

[0034] Figure 6 yes Figure 5 A magnified view of the part A in the middle;

[0035] Figure 7 yes Figure 5 A sectional view of the part along the section line BB;

[0036] Figure 8 This is the third cross-sectional view of the electric water heater provided by the embodiment of the utility model;

[0037] Fig. 9 yes Figure 8 Enlarged view of part C in the middle.

[0038] Reference numerals:

[0039] 100, inner tank; 110, water storage chamber; 120, upper inner tank; 130, lower inner tank; 140, first channel; 150, sewage pipe;

[0040] 200, heating assembly; 210, first mounting member; 220, heating member; 221, first heating member; 222, extension section; 223, vertical section; 224, spiral coil section; 225, second heating member; 230, temperature measuring tube;

[0041] 300, water inlet and outlet assembly; 310, water inlet pipe; 311, water inlet anti-electric wall pipe; 320, water outlet pipe; 321, water outlet anti-electric wall pipe; 330, water outlet pipe; 340, waterway plate; 341, water inlet; 342, water outlet; 343, first side; 344, second side; 345, core pipe; 346, sleeve; 347, first flow channel; 350, second mounting part. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0043] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0045] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Combination Figure 1 and Figure 2 As shown, the electric water heater according to the embodiment of the utility model includes an inner tank 100, a heating component 200 and an inlet and outlet water component 300, wherein a water storage chamber 110 is formed inside the inner tank 100; the heating component 200 includes a first mounting member 210 and a heating member 220, wherein the first mounting member 210 is connected to the bottom of the inner tank 100, and the heating member 220 is arranged on the first mounting member 210 and extends to the water storage chamber 110; the inlet and outlet water component 300 is independent of the heating component 200, and is provided with a water inlet pipe 310 and a water outlet pipe 320, wherein the water inlet pipe 310 is connected to the water storage chamber 110 and is suitable for taking water into the water storage chamber 110, and the water outlet pipe 320 is connected to the water storage chamber 110 and is suitable for transporting water in the water storage chamber to the outside.

[0048] According to the electric water heater of the embodiment of the utility model, the external water source enters the water storage chamber 110 through the water inlet pipe 310 of the water inlet and outlet assembly 300, the heating assembly 200 heats the water in the water storage chamber 110 to form hot water, and the hot water flows out from the water outlet pipe 320 of the water inlet and outlet assembly 300 and flows to the receiving components (mixing valve, shower head, etc.).

[0049] According to the electric water heater of the embodiment of the utility model, the components related to the heating of water in the electric water heater (such as the heating tube) are integrated and installed on the first installation component 210, so as to facilitate the disassembly and assembly of the heating component 200 from the inner tank 100; and the heating component 220 needs to be dried during production, and the inlet and outlet water component 300 arranged independently of the heating component 200 ensures that the drying process of the heating component 200 will not affect the components made of heat-resistant materials (such as insulating materials) in the inlet and outlet water component 300, thereby effectively improving the service life of the inlet and outlet water component 300.

[0050] In addition, the inner tank 100 is usually installed above the wall to facilitate the water in the water storage chamber 110 to flow out under the action of gravity for use by the user. Therefore, the bottom of the inner tank 100, that is, the inner tank 100 faces the user side and has a certain moving space. During the process of disassembling and assembling the heating component 200, the moving space meets the movement requirements of the heating component 200.

[0051] Compared with the prior art, the heating component 200 is arranged on the side of the inner pot 100. Figure 1 The form of the two ends of the horizontal axis of the inner tank 100 avoids reserving maintenance space at both ends of the inner tank 100 to meet the disassembly and movement requirements of the heating component 200, solving the problem of insufficient maintenance space for the electric water heater; and since there is no need to reserve maintenance space, the electric water heater can be semi-embedded or fully embedded, effectively increasing the activity space on the user side, making the indoor space appear more tidy and spacious, and the overall visual effect is more beautiful, which is conducive to improving the quality and style of interior decoration; effectively reducing the dead corners and hard-to-clean areas of the electric water heater, facilitating daily cleaning and maintenance.

[0052] In this embodiment, the inner liner 100 is placed horizontally, that is, the axis of the inner liner 100 is set horizontally; of course, the axis of the inner liner 100 can also be set vertically, in which case the bottom of the inner liner 100 is located at the end of the axis of the inner liner 100.

[0053] In this embodiment, the heating element 220 may be a heating tube, and of course, it may also be a heating wire, a heating needle, or other component that can heat the water in the water storage chamber.

[0054] In this embodiment, the heating component 200 may further include a temperature measuring tube 230 , which is connected to the first mounting member 210 and is suitable for detecting the water temperature near the heating member 220 .

[0055] In one embodiment, the first mounting member 210 can be a flange, which makes the connection between the heating component 200 and the inner tank 100 easier, can be quickly installed and disassembled, and is convenient for daily maintenance and repair work; different types of sealing gaskets or sealing materials can be selected through the flange connection to ensure that the connection has good sealing and avoid leakage of the inner tank 100. Of course, other components that can achieve a stable connection between the heating component 200 and the inner tank 100 can also be used. The installation position of the temperature measuring tube 230 and the heating element 220 is set on the flange, wherein the installation position can be in a one-to-one correspondence with the temperature measuring tube 230 and the heating element 220, and the disassembly and assembly between the temperature measuring tube 230 and the heating element 220 does not interfere with each other, which is conducive to the separate disassembly and assembly of the independent temperature measuring tube 230 or the heating element 220, reducing the maintenance cost of the heating component 200; of course, the temperature measuring tube 230 and the heating element 220 can also be integrated into one form, and only one installation position is set on the flange, reducing the opening of the flange and improving the pressure bearing capacity of the flange.

[0056] Among them, the connection form between the temperature measuring tube 230 or the heating component 200 and the installation position can be welding to the flange, or a connecting part is set on the temperature measuring tube 230 or the heating component 200, and connected to the installation position through the connecting part. The connecting part can be in the form of threaded connection, clamping, etc., and a sealing component is set at the connection to ensure the sealing of the liquid storage chamber.

[0057] According to one embodiment of the utility model, combined Figure 1 or Figure 5 As shown, the water inlet and outlet assembly 300 is located in the middle of the bottom of the inner tank 100. It can be understood that due to the heat exchange between the inner tank 100 and the outside world, in the liquid storage chamber, the temperature of the liquid at the edge position is lower than the temperature at the middle position. The water inlet and outlet assembly 300 arranged in the middle of the bottom of the inner tank 100 is beneficial to providing users with hot water with higher temperature, thereby improving the user experience; the heating assembly 200 is arranged on one side of the water inlet and outlet assembly 300 along the extension direction of the inner tank 100 (left and right direction in the figure), making full use of the remaining space of the inner tank 100 along its extension direction, and ensuring that the maintenance space required for the heating assembly 200 coincides with the activity space on the user side, thereby reducing the reserved space required for the overall installation and maintenance of the electric water heater.

[0058] Of course, based on the indoor space layout, the positional relationship between the heating component 200 and the water inlet and outlet component 300 on the inner tank 100 can also be adaptively adjusted, such as Figure 8 As shown, the heating component 200 may also be disposed in the middle of the bottom of the inner container 100 , while the water inlet and outlet component 300 may be disposed on one side of the heating component 200 .

[0059] According to one embodiment of the utility model, combined Figure 2As shown, the water inlet and outlet assembly 300 includes a water outlet pipe 330 , and the inlet of the water outlet pipe 330 extends to the top area of ​​the water storage chamber 110 .

[0060] It should be noted that the higher the temperature of the water in the water storage chamber 110, the smaller the density, and the corresponding hot water is concentrated in the top area of ​​the water storage chamber 110. The water outlet pipe 330 is conducive to exporting hot water with a higher temperature than that in the bottom area out of the inner tank 100 for user use, thereby improving convenience of use.

[0061] In one embodiment, in combination Figure 2 As shown, the inner pot 100 includes an upper inner pot 120 and a lower inner pot 130 arranged in a vertical direction. The upper inner pot 120 and the lower inner pot 130 are connected by a first channel 140. In the direction from the upper inner pot 120 to the lower inner pot 130, the cross-sectional area of ​​the first channel 140 is smaller than the cross-sectional area of ​​the upper inner pot 120 or the lower inner pot 130. The first channel 140 is suitable for the heating element 220 or the water outlet pipe 330 to pass through.

[0062] The separate setting of the upper inner tank 120 and the lower inner tank 130 reduces the contact area between the water with higher temperature in the upper inner tank 120 and the water with lower temperature in the lower inner tank 130, reduces the heat transfer between the two, and ensures the thermal insulation effect of the water in the upper inner tank 120; and the space of the upper inner tank 120 is smaller than the space of the overall inner tank 100, which is conducive to the rapid heating and temperature rise of the water in the upper inner tank 120, thereby achieving the purpose of rapid heating for user use.

[0063] In this embodiment, two first channels 140 are provided, passing through the heating element 220 and the water outlet pipe 330 respectively. Of course, the number of the first channels 140 can be changed according to the number of components that need to pass through, or only one first channel 140 can be provided, and the heating element 220 and the water outlet pipe 330 pass through the first channel 140 at the same time.

[0064] According to one embodiment of the utility model, combined Figure 1 , Figure 3 and Figure 4 As shown, the heating element 220 includes a first heating element 221, and the first heating element 221 extends from the first mounting element 210 to the top area of ​​the water storage chamber 110. The first heating element 221 is disposed at the bottom of the inner tank 100, so the first heating element 221 extends from the bottom of the inner tank 100 to the top area of ​​the water storage chamber 110, thereby achieving a heating effect on the water storage chamber 110 from the bottom area to the top area as a whole, thereby improving the heating efficiency of the electric water heater.

[0065] In this embodiment, a first heating element 221 is disposed on the first mounting member 210 . Of course, the heating efficiency of the electric water heater can be improved by disposing a plurality of first heating elements 221 .

[0066] According to one embodiment of the utility model, combined Figure 1 , Figure 3 and Figure 4 As shown, the first heating element 221 is provided with an extension section 222, a vertical section 223 and a spiral coil section 224 which are connected in sequence, and the spiral coil section 224 is located in the top area of ​​the water storage chamber 110. The spiral coil section 224 can effectively extend the contact area between the first heating element 221 and the water in the top area of ​​the water storage chamber 110, improve the heating effect of the spiral coil section 224 on the top area, and play the effect of quickly providing hot water.

[0067] In this embodiment, the spiral coil section 224 is in the form of a constant diameter spiral. Of course, it can also be in the form of a gradually changing spiral diameter to increase the contact area of ​​the spiral coil section 224 along the axial direction of the spiral coil section 224 (which can be understood as the up and down direction in the figure), thereby effectively improving the heat exchange efficiency between the first heating element 221 and water.

[0068] In this embodiment, the spiral coil section 224 is in the form of a single-layer spiral. Of course, a multi-layer spiral section can also be arranged in a sheathed form to improve the heat exchange efficiency between the first heating element 221 and water.

[0069] According to one embodiment of the utility model, combined Figure 1 , Figure 3 and Figure 4 As shown, the extension section 222 is provided at the bottom area of ​​the water storage chamber 110, and the extension section 222 can effectively extend the contact area between the first heating element 221 and the water in the bottom area, thereby improving the heat exchange efficiency between the first heating element 221 and the water. The extension direction of the extension section 222 points from the first mounting member 210 to the water outlet pipe 330, so that the vertical section 223 and the spiral coil section 224 connected by the extension section 222 are closer to the water outlet pipe 330, that is, the water near the water outlet pipe 330 is quickly heated, which reduces the user's waiting time and improves the user experience.

[0070] According to one embodiment of the utility model, combined Figure 1 and Figure 8 As shown, the electric water heater also includes a sewage pipe 150, which is suitable for conveying the water in the water storage chamber 110 to the outside, and is used to discharge a large amount of silt and scale accumulated in the inner tank 100, thereby ensuring the water quality used by users and improving the service life of the electric water heater.

[0071] In one embodiment, in combination Figure 1As shown, the sewage pipe 150 and the heating assembly 200 are respectively located on both sides of the water inlet and outlet assembly 300. It can be understood that during the sewage discharge process, the silt and scale in the inner tank 100 will gather near the sewage pipe 150. The sewage pipe 150 set away from the heating assembly 200 can effectively prevent the silt and scale from adhering to the heating assembly 200, improve the sewage discharge effect, and avoid the silt and scale adhering to the heating element 220 of the heating assembly 200, resulting in a reduction in the heat exchange effect between the heating element 220 and the liquid in the liquid storage chamber.

[0072] In one embodiment, the drain pipe 150 is located on the side of the heating component 200 away from the extension section 222. It is understandable that since the extension section 222 is extended along the bottom of the liquid storage chamber, the receiving area in the extension direction is larger, which is more likely to cause sediment and scale to deposit on the surface. The drain pipe 150 is arranged away from the extension section 222, which is conducive to reducing the sediment and scale deposited on the surface of the extension section 222, thereby ensuring the heat exchange effect of the heating element 220.

[0073] According to one embodiment of the utility model, combined Figure 4 As shown, the heating element 220 further includes a second heating element 225 , which is disposed in the bottom area of ​​the water storage chamber 110 , and at least one of the first heating element 221 and the second heating element 225 heats the water in the water storage chamber 110 .

[0074] The second heating element 225 can be used in combination with the first heating element 221. For example, the first heating element 221 or the second heating element 225 can be started according to different usage conditions. For example, during the insulation process of the water storage chamber 110, only the second heating element 225 can be started to reduce the operating cost of the electric water heater; and when the user needs to use a large amount of hot water quickly, the first heating element 221 and the second heating element 225 can be started at the same time to achieve a rapid heating effect and improve the user experience.

[0075] According to an embodiment of the utility model, at least part of the water inlet pipeline 310 forms a water inlet anti-electricity wall pipeline 311, and at least part of the water outlet pipeline 320 forms a water outlet anti-electricity wall pipeline 321. The water inlet anti-electricity wall pipeline 311 prevents leakage of components outside the electric water heater (such as a booster pump) from being transmitted to the water storage chamber 110 through the water inlet pipeline 310; the water outlet anti-electricity wall pipeline 321 prevents leakage in the water storage chamber 110 from being transmitted to the user through the water outlet pipeline 320, effectively ensuring the user's safety.

[0076] According to one embodiment of the utility model, combined Figures 5 to 7As shown, the water inlet and outlet assembly 300 includes a water circuit plate 340, which is provided with a water inlet 341, a water outlet 342, a water inlet anti-electricity wall pipeline 311 and a water outlet anti-electricity wall pipeline 321; the water inlet 341 is connected to the water storage chamber 110 through the water inlet anti-electricity wall pipeline 311, and the water outlet 342 is connected to the water storage chamber 110 through the water outlet anti-electricity wall pipeline 321.

[0077] In this embodiment, water from the outside enters the water storage chamber 110 from the water inlet 341 of the water circuit board 340 through the water inlet anti-electrical wall pipeline 311 to be heated, and the heated water flows out of the water outlet 342 through the water outlet anti-electrical wall pipeline 321.

[0078] By integrating the water inlet anti-electricity wall pipe 311 and the water outlet anti-electricity wall pipe 321 into the water circuit board 340, the installation steps are reduced and the disassembly and assembly efficiency of the anti-electricity wall pipe (referring to the water inlet anti-electricity wall pipe 311 and the water outlet anti-electricity wall pipe 321) is improved compared to the related art in which an anti-electricity wall component is sleeved on the water inlet 341 or the water outlet 342 of the electric water heater.

[0079] In other embodiments, the water inlet and outlet assembly 300 may also be arranged in a conventional manner, such as Figure 1 As shown, a separately arranged cold water inlet pipe (corresponding to the water inlet pipe 310 in the figure) and a hot water outlet pipe (corresponding to the water outlet pipe 320 in the figure) are used to connect the water storage chamber 110 with the outside world, and correspondingly, anti-electricity wall components are connected to the cold water inlet pipe and the hot water outlet pipe to achieve an anti-electricity effect.

[0080] According to one embodiment of the utility model, combined Figures 5 to 7 As shown, a core tube 345 is provided on the first side 343 of the waterway plate 340. The core tube 345 is at least partially provided in the water storage chamber 110 and is suitable for connecting the water storage chamber 110 with the water outlet 342. Along the water flow direction, the pipeline between the inlet of the core tube 345 and the water outlet 342 forms a water outlet anti-electrical wall pipeline 321; a sleeve 346 is provided on the outer side of the core tube 345, and a first flow channel 347 is formed between the sleeve 346 and the core tube 345. Along the water flow direction, the outlet of the first flow channel 347 is connected to the water storage chamber 110, and the pipeline connecting the outlet of the first flow channel 347 and the water inlet 341 forms a water inlet anti-electrical wall pipeline 311.

[0081] In this embodiment, water from the outside source enters the first flow channel 347 from the water inlet 341 of the water circuit plate 340 along the water inlet anti-electrical wall pipeline 311 and then flows into the water storage chamber 110 for heating. The heated water flows out of the water outlet 342 from the inlet of the core tube 345 through the water outlet anti-electrical wall pipeline 321.

[0082] By means of the sleeve arrangement of the core tube 345 and the sleeve 346, the cold water inlet pipe and the hot water outlet pipe are integrated, which effectively reduces the overall volume of the water inlet and outlet assembly 300, facilitating the miniaturization design of the electric water heater; and the inner tank 100 only needs to open a connecting hole corresponding to the sleeve 346, which effectively reduces the number of openings on the surface of the inner tank 100, improves the structural strength of the inner tank 100, and improves the pressure-bearing effect.

[0083] In this embodiment, combined with Figure 6 As shown, the waterway plate 340 has a first side surface 343 and a second side surface 344 which are arranged opposite to each other in sequence along a set direction, the water inlet anti-electrical wall pipeline 311 is located between the first side surface 343 and the second side surface 344, and the extension path of the water inlet anti-electrical wall pipeline 311 is parallel to the first side surface 343 or the second side surface 344. The extended water inlet anti-electrical wall pipeline 311 ensures that there is enough water in the pipeline to form an anti-electrical wall, and the water inlet anti-electrical wall pipeline 311 laid parallel to the first side surface 343 effectively reduces the thickness of the waterway plate 340 along the set direction, that is, correspondingly reduces the user's activity space occupied by the waterway plate 340, and realizes the miniaturization setting of the electric water heater.

[0084] In one embodiment, the extension path of the water inlet anti-electrical wall pipeline 311 is arranged around the sleeve 346 and extends to the edge of the first side surface 343. The path length of the water inlet anti-electrical wall pipeline 311 is increased as much as possible to improve the anti-electrical effect.

[0085] In this embodiment, the core tube 345 or the sleeve 346 is arranged in the middle position of the waterway plate 340, close to the center of the waterway plate 340, so that the center of gravity of the water inlet and outlet assembly 300 is as close as possible to the installation position of the sleeve 346 and the inner liner 100, which is conducive to improving the stability of the water inlet and outlet assembly 300 when it is installed in the inner liner 100. Of course, the position of the core tube 345 or the sleeve 346 on the waterway plate 340 can be adjusted according to actual needs, such as Fig. 9 As shown in , the core tube 345 can be arranged above the water outlet 342 to avoid other components installed on the inner tank 100.

[0086] In this embodiment, the first side surface 343 of the waterway plate 340 is rectangular. Of course, the shape of the first side surface 343 can also be adjusted to a circle, a gourd shape, etc. to meet different installation requirements.

[0087] According to one embodiment of the utility model, combined Fig. 9 As shown, the water inlet and outlet assembly 300 further includes a second mounting member 350, which is connected to the inner tank 100, and the sleeve 346 is connected to the second mounting member 350 and extends to the water storage chamber 110. In this embodiment, the second mounting member 350 facilitates the integrated arrangement of the water inlet and outlet assembly 300 and facilitates assembly and disassembly.

[0088] In this embodiment, the second mounting member 350 can be a flange, which makes the connection between the water inlet and outlet assembly 300 and the inner tank 100 easier, and is convenient for daily maintenance and repair work; different types of sealing gaskets or sealing materials can be selected through the flange connection to ensure that the connection has good sealing performance and avoid leakage of the inner tank 100. Of course, other components that can achieve a stable connection between the water inlet and outlet assembly 300 and the inner tank 100 can also be used.

[0089] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. An electric water heater, characterized in that: include: An inner tank, wherein a water storage cavity is formed inside; A heating assembly, comprising a first mounting member and a heating member, wherein the first mounting member is connected to the bottom of the inner pot, and the heating member is arranged on the first mounting member and extends to the water storage chamber; The water inlet and outlet assembly is independent of the heating assembly and is provided with a water inlet pipe and a water outlet pipe. The water inlet pipe is connected with the water storage chamber and is suitable for filling water into the water storage chamber. The water outlet pipe connects the water storage chamber with the outside world and is suitable for transporting the water in the water storage chamber to the outside world.

2. The electric water heater according to claim 1, characterized in that: The heating component also includes a temperature measuring tube, and the first mounting member is a flange plate, on which mounting positions for the temperature measuring tube and the heating member are arranged.

3. The electric water heater according to claim 1, characterized in that: The water inlet and outlet assembly is located in the middle of the bottom of the inner pot, and the heating assembly is arranged on one side of the water inlet and outlet assembly along the extension direction of the inner pot.

4. The electric water heater according to claim 1, characterized in that: The water inlet and outlet assembly includes a water outlet pipe, the inlet of which extends to the top area of ​​the water storage chamber; The inner pot includes an upper inner pot and a lower inner pot arranged in a vertical direction. The upper inner pot and the lower inner pot are connected by a first channel, which points from the upper inner pot to the lower inner pot. The cross-sectional area of ​​the first channel is smaller than the cross-sectional area of ​​the upper inner pot or the lower inner pot. The first channel is suitable for the heating element or the water outlet pipe to pass through.

5. The electric water heater according to any one of claims 1 to 4, characterized in that: The heating element includes a first heating element, which extends from the first mounting element to the top area of ​​the water storage chamber; the first heating element is provided with an extension section, a vertical section and a spiral coil section which are connected in sequence, and the spiral coil section is located in the top area of ​​the water storage chamber.

6. The electric water heater according to claim 5, characterized in that: In the case where a water outlet pipe is provided, the extension section is provided at the bottom area of ​​the water storage chamber, and the extension direction of the extension section is from the first mounting member to the water outlet pipe.

7. The electric water heater according to claim 6, characterized in that: The electric water heater also includes a sewage pipe suitable for conveying the water in the water storage chamber to the outside; The sewage pipe and the heating component are respectively located on both sides of the water inlet and outlet components. or, The sewage discharge pipeline is located on a side of the heating component away from the extension section.

8. The electric water heater according to any one of claims 1 to 4, characterized in that: At least part of the water inlet pipeline forms a water inlet anti-electrical wall pipeline, and at least part of the water outlet pipeline forms a water outlet anti-electrical wall pipeline; The water inlet and outlet assembly includes a water circuit plate, which is provided with a water inlet, a water outlet, the water inlet anti-electricity wall pipeline and the water outlet anti-electricity wall pipeline; the water inlet is connected to the water storage chamber through the water inlet anti-electricity wall pipeline, and the water outlet is connected to the water storage chamber through the water outlet anti-electricity wall pipeline.

9. The electric water heater according to claim 8, characterized in that: A core tube is provided on the first side of the waterway plate, and the core tube is at least partially provided in the water storage cavity, and is suitable for connecting the water storage cavity with the water outlet. Along the water flow direction, the pipeline between the inlet of the core tube and the water outlet forms the water outlet anti-electric wall pipeline; A sleeve is sleeved on the outer side of the core tube, and a first flow channel is formed between the sleeve and the core tube. Along the water flow direction, the outlet of the first flow channel is connected to the water storage chamber, and the pipeline connected between the outlet of the first flow channel and the water inlet forms the water inlet anti-electric wall pipeline.

10. The electric water heater according to claim 9, characterized in that: The water inlet and outlet assembly also includes a second mounting member, the second mounting member is connected to the inner tank, and the sleeve is connected to the second mounting member and extends to the water storage chamber.

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