Electric water heater

Abstract

The utility model discloses an electric water heater. The electric water heater comprises a water tank, the water tank comprises a tank shell, an inner container, a water inlet pipe and a water outlet pipe, a partition is arranged in the water tank and divides the tank shell into a first cavity and a second cavity, a water inlet branch pipe and a water outlet branch pipe are arranged on the inner container, the water inlet branch pipe and the water outlet branch pipe extend into the inner container, and the inner container is arranged in the first cavity; the water inlet pipe and the water outlet pipe are respectively arranged on the box body and respectively extend out of the box shell; the anti-scalding module is provided with a first water inlet, a second water inlet and a water outlet, and the anti-scalding module is configured to adjust the water inflow of the first water inlet and the second water inlet so as to maintain constant-temperature water outflow of the water outlet; the anti-scalding module is arranged in the second cavity, the water inlet pipe is communicated with the first water inlet and the water inlet branch pipe, the water outlet pipe is communicated with the water outlet, and the second water inlet is communicated with the water outlet branch pipe. The external space occupation amount of the water heater is reduced, so that the compact design of the structure is realized, and the field installation difficulty is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and in particular relates to an electric water heater. Background Technology

[0002] Currently, electric water heaters are common household appliances. Electric water heaters typically consist of a water tank and an electric heating element installed within the tank. When the heating element is powered on, it heats the water in the tank. The tank is connected to an inlet pipe and an outlet pipe; cold water enters the tank through the inlet pipe, while hot water is output from the outlet pipe.

[0003] In order to achieve a constant temperature output of hot water, existing electric water heaters are usually equipped with an anti-scalding module to control the water temperature. Chinese Patent Publication No. CN216557697U discloses an anti-scalding module and an electric water heater, wherein the anti-scalding module is connected to the water outlet pipe of the electric water heater to achieve the mixing of hot and cold water.

[0004] However, the anti-scalding module needs to be externally mounted on the outside of the water tank of the electric water heater, occupying a large amount of external space. Furthermore, the anti-scalding module usually requires on-site pipe connections, which also makes the on-site installation of the entire electric water heater quite difficult. Therefore, how to design a technology that reduces the external space occupied by the electric water heater to achieve a compact structure and reduce on-site installation difficulty is the technical problem that this utility model aims to solve. Utility Model Content

[0005] This utility model provides an electric water heater that reduces the external space occupied by the water heater to achieve a compact structural design and reduces the difficulty of on-site installation.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In one aspect, this utility model provides an electric water heater, comprising:

[0008] A water tank includes a tank shell, an inner liner, an inlet pipe, and an outlet pipe. A partition is provided in the water tank, which divides the tank shell into a first cavity and a second cavity. An inlet branch pipe and an outlet branch pipe are provided on the inner liner, which extend into the inner liner. The inner liner is located in the first cavity. The inlet pipe and the outlet pipe are respectively provided on the tank shell and extend to the outside of the tank shell.

[0009] An anti-scalding module has a first water inlet, a second water inlet, and a water outlet. The anti-scalding module is configured to adjust the water inflow of the first water inlet and the second water inlet to maintain a constant water temperature at the water outlet.

[0010] The anti-scalding module is disposed in the second cavity. The water inlet pipe is connected to the first water inlet and the water inlet branch pipe respectively. The water outlet pipe is connected to the water outlet. The second water inlet is connected to the water outlet branch pipe.

[0011] In one embodiment of this application, the water inlet pipe is connected to the first water inlet and the water inlet branch pipe respectively via a T-junction.

[0012] In one embodiment of this application, the partition is provided with a mounting base, and the anti-scalding module is disposed on the mounting base.

[0013] In one embodiment of this application, the shell is provided with two inner liner, one inner liner is provided with the water inlet branch pipe, and the other inner liner is provided with the water outlet branch pipe, and the two inner liner are interconnected.

[0014] The partition has two mounting ports, the end of the inner liner is located in the corresponding mounting port, and the mounting base is located between the two mounting ports.

[0015] In one embodiment of this application, a protective cover is also included, which is disposed on the mounting base and covers the anti-scalding module;

[0016] The protective cover is also provided with an avoidance opening, which is configured to allow water pipes connected to the anti-scalding module to be laid out.

[0017] In one embodiment of this application, the anti-scalding module includes:

[0018] The valve body is made of plastic and has an outlet channel, a first inlet channel, a second inlet channel, and an installation channel. The inner wall of the installation channel has a first connecting hole, a second connecting hole, and a third connecting hole. The first connecting hole, the second connecting hole, and the third connecting hole are arranged sequentially. The first connecting hole communicates with the first inlet channel, the second connecting hole communicates with the second inlet channel, and the third connecting hole communicates with the installation channel.

[0019] The installation channel is connected to the water outlet channel, the first water inlet channel and the second water inlet channel respectively;

[0020] An automatic temperature control component is disposed on the installation channel and configured to adjust the opening of the second connecting hole according to the temperature of the water outlet channel.

[0021] In one embodiment of this application, the second inlet channel and the outlet channel are respectively arranged to cross the installation channel;

[0022] The first water inlet channel extends along the length of the installation channel and intersects with the first water inlet channel.

[0023] The valve body is also provided with a first connecting flow channel and a second connecting flow channel, which extend along the length direction of the mounting channel, respectively.

[0024] The anti-scalding module also includes an auxiliary tube, the outer periphery of which is provided with two sealing parts arranged side by side, and a water flow interval is formed between two adjacent sealing parts; the auxiliary tube is sealed and inserted into the second water inlet channel through the sealing parts.

[0025] Wherein, one end of the first connecting channel is connected to the first connecting hole, the other end of the first connecting channel is connected to the first water inlet channel through the water flow interval, one end of the second connecting channel is connected to the second connecting hole, and the other end of the second connecting channel is connected to the auxiliary insertion tube.

[0026] In one embodiment of this application, the inner wall of the second water inlet channel is provided with a fourth connecting hole, a fifth connecting hole, and a sixth connecting hole.

[0027] The fourth connecting hole and the fifth connecting hole are located between the two sealing parts. The fourth connecting hole is connected to the first water inlet channel, and the fifth connecting hole is connected to the first connecting channel.

[0028] The sixth connecting hole is connected to the second connecting flow channel.

[0029] In one embodiment of this application, the automatic temperature control component includes an installation cylinder, a temperature sensing component, a plunger, a positioning sleeve, a sealing plug, and a spring. The installation cylinder is provided with a first water inlet and a second water inlet, which are arranged sequentially along the length of the installation cylinder.

[0030] The positioning sleeve is disposed at one end of the mounting cylinder, the sealing plug is disposed at the other end of the mounting cylinder, the plunger is slidably disposed in the mounting cylinder and located between the positioning sleeve and the sealing plug, a sealing ring is disposed on the outer periphery of the plunger, the sealing ring is pressed between the mounting cylinder and the plunger, and the sealing ring is located between the first water inlet hole and the second water inlet hole;

[0031] The temperature sensing component is disposed on the plunger, and the spring is clamped between the temperature sensing component and the positioning sleeve;

[0032] The mounting cylinder is disposed in the mounting channel. The first water inlet hole is connected to the first water inlet channel, the second water inlet hole is connected to the second water inlet channel, and the mounting cylinder is connected to the water outlet channel through the positioning sleeve.

[0033] In one embodiment of this application, the automatic temperature control component further includes an adjusting member, which is provided with an external thread section and is slidably disposed in the mounting cylinder;

[0034] The sealing plug is rotatably disposed in the mounting cylinder, the inner end of the sealing plug is provided with a threaded hole, and the outer end of the sealing plug is provided with a drive shaft; the external threaded section is threadedly connected in the threaded hole.

[0035] Compared with the prior art, the advantages and positive effects of this utility model are as follows: By setting a partition in the shell, the shell is divided into two cavities. The anti-scalding module is built into the second cavity and connected to the inlet and outlet branch pipes on the inner tank inside the shell. At the same time, in order to meet the connection requirements between the electric water heater and the external pipeline, the shell is also provided with exposed inlet and outlet pipes. The inlet and outlet pipes are connected to the anti-scalding module inside the shell through water pipes. In this way, the anti-scalding module is built into the shell, making full use of the space inside the shell to meet the installation requirements of the anti-scalding module, without occupying additional space outside the shell, thereby reducing the external space occupied by the electric water heater and achieving a compact structural design. Furthermore, during on-site installation, only the external water pipes need to be connected to the inlet and outlet pipes on the shell, without needing to connect the anti-scalding module on-site, reducing the difficulty of on-site installation. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of an embodiment of the anti-scalding module of this utility model;

[0038] Figure 2 This is an exploded view of an embodiment of the anti-scalding module of this utility model;

[0039] Figure 3 This is a schematic diagram of the valve body in one embodiment of the anti-scalding module of this utility model;

[0040] Figure 4 for Figure 3 Sectional view along line AA;

[0041] Figure 5 for Figure 3 Sectional view along the BB direction;

[0042] Figure 6 for Figure 2 A schematic diagram of the automatic temperature control component;

[0043] Figure 7 for Figure 2 Cross-sectional view of the automatic temperature control component;

[0044] Figure 8 for Figure 2 Schematic diagram of the structure of the auxiliary cannula;

[0045] Figure 9 This is a schematic diagram of the structure of an embodiment of the electric water heater of this utility model;

[0046] Figure 10 for Figure 9 A schematic diagram of the structure of a Zhongdian water heater with the tank shell removed;

[0047] Figure 11 for Figure 10 A schematic diagram of the structure of the protective cover after disassembly;

[0048] Figure 12 for Figure 10 A schematic diagram of the central partition.

[0049] Figure label:

[0050] 1. Valve body; 11. Outlet channel; 12. First inlet channel; 13. Second inlet channel; 14. Installation channel; 15. First connecting channel; 16. Second connecting channel;

[0051] 141. First connecting hole; 142. Second connecting hole; 143. Third connecting hole; 131. Fourth connecting hole; 132. Fifth connecting hole; 133. Sixth connecting hole;

[0052] 2. Automatic temperature control component; 21. Mounting cylinder; 22. Temperature sensing element; 23. Plunger; 24. Positioning sleeve; 25. Sealing plug; 26. Spring; 27. First sealing ring; 28. Adjusting component; 29. ​​Drive motor;

[0053] 211. First water inlet; 212. Second water inlet; 213. Second sealing ring;

[0054] 3. Auxiliary cannula; 31. Sealing part;

[0055] 4. End cap;

[0056] 5. Water tank; 51. Tank shell; 52. Inner liner; 53. Inlet pipe; 54. Outlet pipe; 55. T-joint; 56. Protective cover;

[0057] 511. Partition; 512. Mounting base; 521. Inlet branch pipe; 522. Outlet branch pipe. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0059] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0061] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0065] Example 1, as Figures 1-8 As shown, this embodiment proposes a type of anti-scalding module, including:

[0066] The valve body 1 is made of plastic and has an outlet channel 11, a first inlet channel 12, a second inlet channel 13, and an installation channel 14. The inner wall of the installation channel 14 has a first connecting hole 141, a second connecting hole 142, and a third connecting hole 143. These holes are arranged sequentially. The first connecting hole 141 communicates with the first inlet channel 12, the second connecting hole 142 communicates with the second inlet channel 13, and the third connecting hole 143 communicates with the installation channel 14. The installation channel 14 communicates with the outlet channel 11, the first inlet channel 12, and the second inlet channel 13.

[0067] Automatic temperature control component 2, which is disposed on the installation channel 14 and configured to adjust the opening of the second connecting hole 142 according to the temperature of the water outlet channel 11.

[0068] Specifically, the valve body 1 in the anti-scalding module provided in this embodiment is made of plastic. Plastic has a lower manufacturing cost. Furthermore, during the process of forming the valve body 1 by injection molding, the flow channel formed in the valve body 1 has a smoother inner wall. On the one hand, this can reduce water resistance, and on the other hand, it can reduce the formation of scale on the inner wall, thereby improving the reliability of use.

[0069] Meanwhile, in order to meet the requirement that hot and cold water flow into the valve body 1 and be adjusted in proportion by the automatic temperature control component 2, the inner wall of the installation channel 14 is formed with three through holes. The first through hole 141 is connected to the first water inlet channel 12 to input cold water into the automatic temperature control component 2, the second through hole 142 is connected to the second water inlet channel 13 to input hot water into the automatic temperature control component 2, and the third through hole 143 is used to transport the water adjusted by the automatic temperature control component 2 to the water outlet channel 11 to finally output constant temperature water.

[0070] In one embodiment, the first water inlet channel 12, the second water inlet channel 13, and the water outlet channel 11 are arranged sequentially along the length of the installation channel 14, and the first water inlet channel 12, the second water inlet channel 13, and the water outlet channel 11 are arranged intersecting the installation channel 14.

[0071] Specifically, in order to facilitate injection molding and simplify the mold structure, the first water inlet channel 12, the second water inlet channel 13, and the water outlet channel 11 are distributed along the installation channel 14, respectively. In this way, the first water inlet channel 12, the second water inlet channel 13, and the water outlet channel 11 can be directly connected to the installation channel 14 through the drinking water connection hole to achieve the water flow requirements of the corresponding water flow path.

[0072] In another embodiment, to facilitate the connection of external pipelines, the positions of the first inlet channel 12, the second inlet channel 13, and the outlet channel 11 on the valve body 1 are optimized to better meet the requirements for convenient connection of external pipelines. Specifically, the second inlet channel 13 and the outlet channel 11 are respectively arranged intersecting with the installation channel 14; the first inlet channel 12 extends along the length direction of the installation channel and is arranged intersecting with the installation channel 14.

[0073] The valve body 1 is also provided with a first connecting flow channel 15 and a second connecting flow channel 16, the first connecting flow channel 15 and the second connecting flow channel 16 extending along the length direction of the mounting channel, respectively.

[0074] The anti-scalding module also includes an auxiliary insertion tube 3, which has two side-by-side sealing parts 31 arranged around its outer periphery, forming a water flow interval between two adjacent sealing parts 31; the auxiliary insertion tube 3 is sealed and inserted into the second water inlet channel 13 through the sealing parts 31.

[0075] Wherein, one end of the first connecting channel 15 is connected to the first connecting hole 141, the other end of the first connecting channel 15 is connected to the first water inlet channel 12 through the water flow interval, one end of the second connecting channel 16 is connected to the second connecting hole 142, and the other end of the second connecting channel 16 is connected to the auxiliary insertion tube 3.

[0076] Specifically, in actual use, cold water and hot water will be input into the valve body 1. To facilitate the connection of external cold water and hot water supply pipes, the first inlet channel 12 and the second inlet channel 13 are arranged together and cross each other. An auxiliary insertion pipe 3 is provided in the second inlet channel 13. The auxiliary insertion pipe 3 is sealed inside the second inlet channel 13 by a sealing part 31. Hot water will flow into the second inlet channel 13 through the auxiliary insertion pipe 3 and then flow to the second connecting hole 142 through the second connecting channel 16. Additionally, the water flowing into the first inlet channel 12 first flows into the water flow interval formed between the two sealing parts 31 in the second inlet channel 13 and then flows to the first connecting hole 141 through the first connecting channel 15.

[0077] Furthermore, since the first water inlet channel 12 and the second water inlet channel 13 are connected to each other during the processing of the valve body 1, the structure of the mold can be simplified and the processing difficulty can be reduced; at the same time, the auxiliary pipe 3 set in the second water inlet channel 13 can separate the cold water and hot water to meet the requirement of independent flow of cold and hot water.

[0078] In another embodiment, the inner wall of the second water inlet channel 13 is provided with a fourth connecting hole 131, a fifth connecting hole 132, and a sixth connecting hole 133.

[0079] The fourth connecting hole 131 and the fifth connecting hole 132 are located between the two sealing parts 31. The fourth connecting hole 131 is connected to the first water inlet channel 12, and the fifth connecting hole 132 is connected to the first connecting channel 15.

[0080] The sixth connecting hole 133 is connected to the second connecting channel 16.

[0081] Specifically, since the first water inlet channel 12 is connected to the first connecting hole 141 via the second water inlet channel 13 to meet the water flow requirements, in order to facilitate the connection of the corresponding flow paths during the injection molding process, the inner wall of the first water inlet channel 12 is formed with a fourth connecting hole 131, a fifth connecting hole 132 and a sixth connecting hole 133. In this way, the first connecting channel 15 and the first water inlet channel 12 are all arranged crosswise with the second water inlet channel 13, so as to facilitate the arrangement of the corresponding mold rods in the mold to form the corresponding flow paths, and also to facilitate the smooth demolding later.

[0082] In one embodiment, the first connecting channel 15 and the second connecting channel 16 are only used to connect the first water inlet channel 12 and the second water inlet channel 13 with the installation channel 14. For this purpose, the first connecting channel 15 forms an opening on the surface of the valve body 1, and the second connecting channel 16 forms an opening on the surface of the valve body 1 with a cap 4.

[0083] Specifically, during the injection molding process, after the valve body 1 is formed, the opening formed in the first connecting channel 15 on the surface of the valve body 1 can be sealed by the end cap 4 to ensure that the water input from the first water inlet channel 12 flows into the installation channel 14 through the first connecting channel 15. Correspondingly, the opening formed in the second connecting channel 16 on the surface of the valve body 1 can be sealed by the end cap 4 to ensure that the water input from the second water inlet channel 13 flows into the installation channel 14 through the second connecting channel 16.

[0084] In another embodiment, the second inlet channel 13 and the outlet channel 11 are arranged in opposite directions.

[0085] In another embodiment of this application, in order to achieve a modular design, the automatic temperature control component 2 includes an installation cylinder 21, a temperature sensing component 22, a plunger 23, a positioning sleeve 24, a sealing plug 25, and a spring 26. The installation cylinder 21 is provided with a first water inlet hole 211 and a second water inlet hole 212, and the first water inlet hole 211 and the second water inlet hole 212 are arranged sequentially along the length direction of the installation cylinder 21.

[0086] The positioning sleeve 24 is disposed at one port of the mounting cylinder 21, the sealing plug 25 is disposed at the other port of the mounting cylinder 21, the plunger 23 is slidably disposed in the mounting cylinder 21 and located between the positioning sleeve 24 and the sealing plug 25, and a first sealing ring 27 is disposed on the outer periphery of the plunger 23. The first sealing ring 27 is pressed between the mounting cylinder 21 and the plunger 23, and the first sealing ring 27 is located between the first water inlet hole 211 and the second water inlet hole 212.

[0087] The temperature sensing component 22 is disposed on the plunger 23, and the spring 26 is clamped between the temperature sensing component 22 and the positioning sleeve 24;

[0088] The mounting cylinder 21 is disposed in the mounting channel 14. The first water inlet hole 211 is connected to the first water inlet channel 12, the second water inlet hole 212 is connected to the second water inlet channel 13, and the mounting cylinder 21 is connected to the water outlet channel 11 through the positioning sleeve 24.

[0089] Specifically, the automatic temperature control component 2, as a modular structure, can be pre-assembled together and then assembled into the installation channel 14 of the valve body 1. Among them, the mounting cylinder 21, as the main load-bearing component, mounts the temperature sensing component 22, plunger 23, positioning sleeve 24, sealing plug 25 and spring 26 on the mounting cylinder 21, and then the entire assembly is installed into the installation channel 14 through the mounting cylinder 21.

[0090] To ensure that the hot and cold water are independent before mixing inside the mounting cylinder 21, multiple second sealing rings 213 can be provided on the outside of the mounting cylinder 21. This results in second sealing rings 213 being provided on both sides of the first water inlet hole 211, and similarly, second sealing rings 213 being provided on both sides of the second water inlet hole 212. After the mounting cylinder 21 is inserted into the mounting channel 14, the second sealing rings 213 are pressed between the inner wall of the mounting channel 14 and the mounting cylinder 21, thereby achieving a sealed connection between the first water inlet hole 211 and the first water inlet channel 12 through the first connecting hole 141, and a sealed connection between the second water inlet hole 212 and the second water inlet channel 13 through the second connecting hole 142.

[0091] In one embodiment, in order to adjust the temperature of the constant temperature outlet water, the automatic temperature control component 2 further includes an adjusting member 28, the adjusting member 28 is provided with an external thread section, and the adjusting member 28 is slidably disposed in the mounting cylinder 21;

[0092] The sealing plug 25 is rotatably disposed in the mounting cylinder 21. The inner end of the sealing plug 25 is provided with a threaded hole, and the outer end of the sealing plug 25 is provided with a drive shaft. The external threaded section is threadedly connected in the threaded hole.

[0093] Specifically, the adjusting component 28 can move within the mounting cylinder 21 to adjust the extension and retraction stroke of the temperature sensing component 22. The method by which the adjusting component 28 adjusts the constant temperature outlet water temperature can be referred to existing technologies, and will not be limited or elaborated here.

[0094] In some embodiments, the automatic temperature control component 2 further includes a drive motor 29, which is disposed on the valve body 1 and drivenly connected to the drive shaft.

[0095] Specifically, the drive motor 29 can be energized to drive the sealing plug 25 to rotate, thereby automatically adjusting the position of the adjusting component 28 to achieve automatic adjustment of the water temperature of the outlet water.

[0096] By using a valve body 1 supported by plastic material, the surface of the flow channel formed inside the valve body 1 is smoother and flatter. This ensures that scale adheres to the surface of the flow channel during water flow, thereby improving the anti-clogging performance and improving the reliability of use. In addition, by providing a first connecting hole 141, a second connecting hole 142 and a third connecting hole 143 arranged in sequence on the inner wall of the installation channel 14, the water circuit connection requirements between the first water inlet channel 12, the second water inlet channel 13 and the water outlet flow and the installation channel 14 are met, and the processing requirements of manufacturing the valve body 1 with plastic material are realized to reduce the manufacturing cost.

[0097] In another embodiment of this application, an electric water heater is provided, including a water tank 5, which is provided with an inlet pipe 53 and an outlet pipe 54, and also includes an anti-scalding module. The hot water output from the constant temperature water tank 5 enters the anti-scalding module and is mixed with cold water as needed to output constant temperature water.

[0098] In the case where the anti-scalding module is located outside the water tank 5, the water outlet pipe 54 on the water tank 5 is connected to the second water inlet channel 13 of the anti-scalding module.

[0099] To achieve a compact design, the anti-scalding module can be built into the water tank 5. As shown in the figure…, an embodiment of this application provides an electric water heater including:

[0100] Water tank 5 includes a tank shell 51, an inner liner 52, an inlet pipe 53, and an outlet pipe 54. A partition 511 is provided in the water tank 5, which divides the tank shell 51 into a first cavity and a second cavity. An inlet branch pipe 521 and an outlet branch pipe 522 are provided on the inner liner 52, which extend into the inner liner 52. The inner liner 52 is located in the first cavity. The inlet pipe 53 and the outlet pipe 54 are respectively provided on the tank shell and extend to the outside of the tank shell 51.

[0101] An anti-scalding module has a first water inlet, a second water inlet, and a water outlet. The anti-scalding module is configured to adjust the water inflow of the first water inlet and the second water inlet to maintain a constant water temperature at the water outlet.

[0102] The anti-scalding module is disposed in the second cavity. The water inlet pipe 53 is connected to the first water inlet and the water inlet branch pipe 521 respectively. The water outlet pipe 54 is connected to the water outlet. The second water inlet is connected to the water outlet branch pipe 522.

[0103] Specifically, the casing 51 has a partition 511 to form two cavities. The first cavity is used to install the inner liner 52, while the second cavity can be used to install the anti-scalding module and electrical components such as the control board. In this way, the anti-scalding module is built into the casing 51 without occupying space outside the casing 51.

[0104] In addition, to facilitate the connection of the anti-scalding module to the water circuit inside the housing 51, the inner liner 52 integrates an inlet branch pipe 521 and an outlet branch pipe 522, while the housing 51 has exposed inlet pipe 53 and outlet pipe 54. The inlet pipe 53 can supply cold water to both the inner liner 52 and the anti-scalding module. Hot water in the inner liner 52 is output through the outlet branch pipe 522 and then enters the anti-scalding module. The water output from the outlet of the anti-scalding module is finally output to the outside of the housing 51 through the outlet pipe 54.

[0105] The anti-scalding module can be a thermostatic mixer in conventional technology, or it can be the anti-scalding module in Embodiment 1 of this application, that is, the water outlet channel 11 is provided with a water outlet, the first water inlet channel 12 is provided with a first water inlet, and the second water inlet channel 13 is provided with a second water inlet. No restrictions or details are made here.

[0106] In one embodiment, the water inlet pipe 53 is connected to the first water inlet and the water inlet branch pipe 521 respectively via a three-way pipe 55.

[0107] Specifically, a three-way pipe 55 is provided in the second cavity of the housing 51 to connect the water inlet pipe 53 to the anti-scalding module and the water inlet branch pipe 521 respectively.

[0108] In another embodiment, in order to facilitate the installation and fixing of the anti-scalding module, the partition 511 is provided with a mounting base 512, and the anti-scalding module is mounted on the mounting base 512.

[0109] Specifically, the valve body 1 of the anti-scalding module is fixedly installed on the mounting base 512 so that operators can perform fixed installation during the production stage.

[0110] The housing 51 may also be provided with a protective cover 56, which is provided on the mounting base 512 and covers the anti-scalding module; the protective cover 56 is also provided with an avoidance opening (unmarked), which is configured to allow water pipes connected to the anti-scalding module to be laid.

[0111] Specifically, the design of the protective cover 56 makes the pipes in the second cavity more neatly distributed, and the protective cover 56 can protect the pipe connection parts of the anti-scalding module to improve the reliability of use.

[0112] In some embodiments of this application, the shell 51 is provided with two inner liner 52, one of the inner liner 52 is provided with the water inlet branch pipe 521, and the other inner liner 52 is provided with the water outlet branch pipe 522, and the two inner liner 52 are interconnected.

[0113] The partition 511 is provided with two mounting ports, the end of the inner liner 52 is located in the corresponding mounting port, and the mounting base 512 is located between the two mounting ports.

[0114] Specifically, the housing 51 is provided with two inner tanks 52 to increase the volume of the electric water heater, and the anti-scalding module can be arranged in the second cavity between the ends of the two inner tanks 52 to make full and reasonable use of the installation space in the second cavity for installation, while also facilitating the design of water pipe layout and optimizing pipe connection.

[0115] By setting a partition 511 in the housing 51, the housing 51 is divided into two cavities. The anti-scalding module is built into the second cavity and connected to the water inlet branch pipe 521 and water outlet branch pipe 522 on the inner tank 52 inside the housing 51. At the same time, in order to meet the connection requirements between the electric water heater and the external pipeline, the housing 51 is also provided with exposed water inlet pipe 53 and water outlet pipe 54. The water inlet pipe 53 and water outlet pipe 54 are connected to the anti-scalding module inside the housing 51 through water pipes. In this way, the anti-scalding module is built into the housing 51, so as to make full use of the space inside the housing 51 to meet the installation requirements of the anti-scalding module without occupying additional space outside the housing 51. This reduces the external space occupied by the electric water heater and achieves a compact structural design. Furthermore, during on-site installation, only the external water pipe needs to be connected to the water inlet pipe 53 and water outlet pipe 54 on the housing 51. There is no need to connect the anti-scalding module on-site, reducing the difficulty of on-site installation.

[0116] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. An electric water heater, characterized in that, include: A water tank includes a tank shell, an inner liner, an inlet pipe, and an outlet pipe. A partition is provided in the water tank, which divides the tank shell into a first cavity and a second cavity. An inlet branch pipe and an outlet branch pipe are provided on the inner liner, which extend into the inner liner. The inner liner is located in the first cavity. The inlet pipe and the outlet pipe are respectively provided on the tank shell and extend to the outside of the tank shell. An anti-scalding module has a first water inlet, a second water inlet, and a water outlet. The anti-scalding module is configured to adjust the water inflow of the first water inlet and the second water inlet to maintain a constant water temperature at the water outlet. The anti-scalding module is disposed in the second cavity. The water inlet pipe is connected to the first water inlet and the water inlet branch pipe respectively. The water outlet pipe is connected to the water outlet. The second water inlet is connected to the water outlet branch pipe.

2. The electric water heater according to claim 1, characterized in that, The water inlet pipe is connected to the first water inlet and the water inlet branch pipe respectively via a T-connector.

3. The electric water heater according to claim 1, characterized in that, The partition is provided with a mounting base, and the anti-scalding module is mounted on the mounting base.

4. The electric water heater according to claim 3, characterized in that, The shell contains two inner liner, one of which has an inlet branch pipe and the other has an outlet branch pipe, and the two inner liner are connected to each other. The partition has two mounting ports, the end of the inner liner is located in the corresponding mounting port, and the mounting base is located between the two mounting ports.

5. The electric water heater according to claim 3, characterized in that, It also includes a protective cover, which is mounted on the mounting base and covers the anti-scalding module; The protective cover is also provided with an avoidance opening, which is configured to allow water pipes connected to the anti-scalding module to be laid out.

6. The electric water heater according to any one of claims 1-5, characterized in that, The anti-scalding module includes: The valve body is made of plastic and has an outlet channel, a first inlet channel, a second inlet channel, and an installation channel. The inner wall of the installation channel has a first connecting hole, a second connecting hole, and a third connecting hole. The first connecting hole, the second connecting hole, and the third connecting hole are arranged sequentially. The first connecting hole communicates with the first inlet channel, the second connecting hole communicates with the second inlet channel, and the third connecting hole communicates with the installation channel. The installation channel is connected to the water outlet channel, the first water inlet channel and the second water inlet channel respectively; An automatic temperature control component is disposed on the installation channel and configured to adjust the opening of the second connecting hole according to the temperature of the water outlet channel.

7. The electric water heater according to claim 6, characterized in that, The second inlet channel and the outlet channel are respectively arranged to intersect with the installation channel; The first water inlet channel extends along the length of the installation channel and intersects with the first water inlet channel. The valve body is also provided with a first connecting flow channel and a second connecting flow channel, which extend along the length direction of the mounting channel, respectively. The anti-scalding module also includes an auxiliary tube, the outer periphery of which is provided with two sealing parts arranged side by side, and a water flow interval is formed between two adjacent sealing parts; the auxiliary tube is sealed and inserted into the second water inlet channel through the sealing parts. Wherein, one end of the first connecting channel is connected to the first connecting hole, the other end of the first connecting channel is connected to the first water inlet channel through the water flow interval, one end of the second connecting channel is connected to the second connecting hole, and the other end of the second connecting channel is connected to the auxiliary insertion tube.

8. The electric water heater according to claim 7, characterized in that, The inner wall of the second water inlet channel is provided with a fourth connecting hole, a fifth connecting hole, and a sixth connecting hole. The fourth connecting hole and the fifth connecting hole are located between the two sealing parts. The fourth connecting hole is connected to the first water inlet channel, and the fifth connecting hole is connected to the first connecting channel. The sixth connecting hole is connected to the second connecting flow channel.

9. The electric water heater according to claim 6, characterized in that, The automatic temperature control assembly includes an installation cylinder, a temperature sensing component, a plunger, a positioning sleeve, a sealing plug, and a spring. The installation cylinder is provided with a first water inlet and a second water inlet, which are arranged sequentially along the length of the installation cylinder. The positioning sleeve is disposed at one end of the mounting cylinder, the sealing plug is disposed at the other end of the mounting cylinder, the plunger is slidably disposed in the mounting cylinder and located between the positioning sleeve and the sealing plug, a sealing ring is disposed on the outer periphery of the plunger, the sealing ring is pressed between the mounting cylinder and the plunger, and the sealing ring is located between the first water inlet hole and the second water inlet hole; The temperature sensing component is disposed on the plunger, and the spring is clamped between the temperature sensing component and the positioning sleeve; The mounting cylinder is disposed in the mounting channel. The first water inlet hole is connected to the first water inlet channel, the second water inlet hole is connected to the second water inlet channel, and the mounting cylinder is connected to the water outlet channel through the positioning sleeve.

10. The electric water heater according to claim 9, characterized in that, The automatic temperature control component also includes an adjusting member, which has an external thread section and is slidably disposed in the mounting cylinder; The sealing plug is rotatably disposed in the mounting cylinder, the inner end of the sealing plug is provided with a threaded hole, and the outer end of the sealing plug is provided with a drive shaft; the external threaded section is threadedly connected in the threaded hole.

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