Water inlet pipe assembly and electric water heater

Abstract

The utility model provides a water inlet pipe assembly and an electric water heater. The water inlet pipe assembly comprises a water inlet pipe and a filtering piece. The water inlet pipe is provided with a water inlet end and a connecting part, a water inlet is formed in the water inlet end, a water outlet is formed in the connecting part, and a water flow channel is formed between the water inlet and the water outlet; the filtering piece is sleeved outside the connecting part; wherein the filtering part comprises a filtering body, a filtering cavity is defined by the filtering body, the filtering cavity is filled with a filtering material, and the filtering cavity is communicated with the water flow channel through the water outlet hole. According to the water inlet pipe assembly, the connecting part of the water inlet pipe is sleeved with the filtering piece, and the filtering piece adopts the structural form that the filtering cavity is filled with the filtering material, so that the water inlet pipe and the filtering piece are integrated, the filtering effect is improved, the water quality is improved, and when the water inlet pipe assembly is applied to an electric water heater, scaling of an inner container can be avoided; therefore, the service life of the electric water heater is prolonged; and compared with a structure provided with a front filtering device, the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a water inlet pipe assembly and an electric water heater. Background Art

[0002] Most existing electric water heaters include an inner tank and a water inlet pipe. The water inlet pipe is placed in the inner tank and connected to the external pipeline through a joint. In order to improve the water quality and avoid scaling of the inner tank that affects the service life, some electric water heaters have a filter installed at the entrance of the water inlet pipe, but the filter can only remove large particles of impurities in the water; some electric water heaters are equipped with a pre-filter at the front end of the water inlet, and the water inlet pipe and the pre-filter device are installed in series in the water circuit of the electric water heater, but the installation of the pre-filter device undoubtedly requires a higher cost. Utility Model Content

[0003] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a water inlet pipe assembly is provided, and the technical solution is as follows.

[0004] A water inlet pipe assembly comprises a water inlet pipe and a filter element; the water inlet pipe has a water inlet end and a connecting part, the water inlet end is provided with a water inlet, the connecting part is provided with a water outlet, and a water flow channel is formed between the water inlet and the water outlet; the filter element is sleeved outside the connecting part; wherein the filter element comprises a filter body, the filter body is enclosed to form a filter cavity, the filter cavity is filled with filter material, and the filter cavity is connected with the water flow channel through the water outlet.

[0005] The water inlet pipe assembly of the utility model has a filter element arranged outside the connecting part of the water inlet pipe, and the filter element adopts a structural form in which the filter material is filled in the filter cavity, so that the water inlet pipe and the filter element are integrated into one, thereby improving the filtering effect and the water quality. When applied to the electric water heater, it can avoid scaling of the inner tank, thereby increasing the service life of the electric water heater; and compared with the structure with a pre-filter device, the production cost is reduced.

[0006] For example, the water inlet pipe includes an inner pipe and an outer pipe, the outer pipe is sleeved outside the inner pipe, the water inlet is arranged at one end of the inner pipe, and the water outlet is arranged on the pipe wall of the outer pipe; a through hole is arranged at the end of the inner pipe away from the water inlet, and the outer pipe is connected to the inner pipe through the through hole. With such arrangement, the inner pipe and the outer pipe have a slow flow effect on the water flow. When applied to the electric water heater, the cold water flowing to the inner tank can reduce the disturbance to the hot water in the inner tank due to the slow flow effect, thereby improving the water outlet efficiency of the electric water heater.

[0007] For example, the water outlet hole is closer to the water inlet than the through hole. This arrangement can increase the length of the water flow channel, thereby increasing the flow distance and flow time of the water flow in the pipeline, and when applied to an electric water heater, it can further enhance the slow flow effect of the cold water flowing to the inner tank.

[0008] For example, the filter body is enclosed to form a plurality of filter cavities, each of which is filled with filter material, and the filter body is provided with a plurality of through holes, and two adjacent filter cavities are connected to each other through the through holes. In this way, water can be filtered multiple times through the plurality of filter cavities enclosed by the filter body, thereby greatly improving the water quality.

[0009] Exemplarily, the filter body has an outer wall body away from the outer tube and an inner wall body located in the outer wall body, the filter cavity includes an outer layer cavity formed between the outer wall body and the inner wall body, the outer wall body is provided with a plurality of overflow ports with different water outlet directions, and the outer layer cavity is connected to the external space through the plurality of overflow ports. With such a configuration, the filtered water has a plurality of different flow directions, and the flow rate of the outlet water flow can be gradually reduced. When applied to an electric water heater, it can further reduce the disturbance of the hot water in the inner tank, thereby improving the output rate of hot water.

[0010] Exemplarily, the filter body includes a first part and a second part, which are arranged in sequence along the axial direction of the outer tube, and the first part and the second part are matched to form a filter cavity. Such an arrangement not only facilitates the assembly between the filter body and the water inlet pipe, but also facilitates maintenance and replacement of the filter material.

[0011] For example, the first part has a first connection end face facing the second part, the second part has a second connection end face facing the first part, and the first connection end face and the second connection end face are connected by a latch structure. This arrangement can ensure the firmness of the connection between the first part and the second part, and no other connecting parts are required, thereby reducing production costs.

[0012] Exemplarily, the latch structure includes a latching portion disposed on one of the first connection end surface and the second connection end surface; and a latching slot disposed on the other of the first connection end surface and the second connection end surface; wherein the latching slot has a notch end and a positioning end, and the latching portion slides from the notch end to the positioning end to relatively fix the first connection end surface and the second connection end surface. Such a configuration not only facilitates assembly operations, but also has a high connection firmness.

[0013] Exemplarily, a sealing member is provided at one end of the outer tube near the water inlet, the sealing member blocks the end of the outer tube near the water inlet, and the end of the sealing member away from the water inlet abuts against the end of the first part away from the second part. With such a configuration, on the one hand, one end of the sealing member blocks the end of the outer tube near the water inlet, thereby preventing cold water from flowing out of the end of the outer tube near the water inlet; on the other hand, the end of the sealing member away from the water inlet limits the first part, thereby limiting the filter body.

[0014] Exemplarily, a convex portion protrudes from the outer wall of the outer tube, and the convex portion abuts against an end of the second part away from the first part. In this way, the convex portion limits the second part, thereby limiting the filter body again.

[0015] For example, the filter body is formed with a through hole, and the outer tube is interference-fitted with the through hole. This arrangement ensures the firmness of the connection between the filter body and the outer tube, and avoids the phenomenon of the outer tube being broken by fasteners such as screws.

[0016] For example, the water inlet pipe is connected with a plug, which has a closing portion and a plug-in portion, the closing portion is connected to the end of the outer pipe away from the water inlet, and the plug-in portion is inserted into the end of the inner pipe away from the water inlet. This arrangement prevents water from flowing out along the axial direction of the pipe.

[0017] According to another aspect of the utility model, an electric water heater is also provided, comprising an inner tank and the water inlet pipe assembly as described above, wherein the water inlet pipe assembly is placed in the inner tank. The electric water heater of the utility model improves the filtering effect and water quality due to the water inlet pipe assembly, which can prevent scaling of the inner tank, thereby increasing the service life; and compared with the structure with a pre-filter device, the production cost is reduced.

[0018] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0019] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0021] Figure 1 A front view of a water inlet pipe assembly according to an exemplary embodiment of the utility model;

[0022] Figure 2 for Figure 1 The internal structure diagram of the water inlet pipe assembly shown (and the flow direction of water in the water inlet pipe assembly);

[0023] Figure 3 for Figure 2 A perspective view of the first portion shown in ;

[0024] Figure 4 for Figure 2a perspective view of the second portion shown in ;

[0025] Figure 5 for Figure 1 A front view of the water inlet pipe shown in;

[0026] Figure 6 for Figure 5 AA section view in.

[0027] The above drawings include the following reference numerals:

[0028] 10. Water inlet pipe assembly; 100. Water inlet pipe; 110. Water inlet end; 111. Water inlet; 120. Connecting part; 121. Water outlet hole; 130. Water flow channel; 140. Inner pipe; 141. Through hole; 150. Outer pipe; 160. Sealing member; 161. Flange; 170. Raised part; 180. Plug; 181. Closing part; 182. Connecting part; 200. Filter element; 210. Filter body; 211. Through hole; 212. Outer wall; 213 , overflow port; 214, first part; 2141, first connecting end face; 215, second part; 2151, second connecting end face; 216, latch structure; 2161, snap-in portion; 2162, slot; 2163, notch end; 2164, positioning end; 217, through hole; 218, inner wall; 220, filter cavity; 221, outer cavity; 300, connector; 310, first end; 320, second end; 321, groove; 330, threaded structure. DETAILED DESCRIPTION

[0029] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0030] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0031] The embodiment of the utility model provides a water inlet pipe assembly. The water inlet pipe assembly can be applied to various types of equipment, including but not limited to water heaters, etc. The following will introduce a water inlet pipe assembly according to the embodiment of the utility model in detail with reference to the accompanying drawings.

[0032] Combined with reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The water inlet pipe assembly 10 of the utility model may include a water inlet pipe 100 and a filter element 200. The water inlet pipe 100 may have a water inlet end 110 and a connecting portion 120. A water inlet 111 may be provided on the water inlet end 110, and a water outlet hole 121 may be provided on the connecting portion 120. A water flow channel 130 may be formed between the water inlet 111 and the water outlet hole 121. In order to facilitate water discharge, the number of the water outlet holes 121 may be multiple. The filter element 200 may be sleeved outside the connecting portion 120. Among them, the filter element 200 may include a filter body 210, and the filter body 210 may be enclosed to form a filter cavity 220, and the filter cavity 220 may be filled with a filter material (not shown in the figure), and the filter cavity 220 may be connected to the water flow channel 130 through the water outlet hole 121. Specifically, cold water can enter the water flow channel 130 through the water inlet 111, flow through the water flow channel 130 and flow out at the water outlet 121, and then enter the filter chamber 220 and flow out after being filtered by the filter material. Among them, the user can configure different filter materials according to needs, for example, the filter material can be a strontium / zinc salt mineral compound, etc. The connecting part 120 is the part of the water inlet pipe 100 that is connected to the filter element 200.

[0033] In the water inlet pipe assembly 10 of the utility model, a filter element 200 is arranged outside the connecting portion 120 of the water inlet pipe 100. The filter element 200 adopts a structural form in which a filter material is filled in a filter cavity 220, so that the water inlet pipe 100 and the filter element 200 are integrated into one body, thereby improving the filtering effect and the water quality. When applied to an electric water heater, it can avoid scaling of the inner tank, thereby increasing the service life of the electric water heater; and compared with the structure with a pre-filter device, the production cost is reduced.

[0034] In one embodiment of the present invention, again in conjunction with reference to Figure 1 , Figure 2 , Figure 5 and Figure 6, the water inlet pipe 100 may include an inner tube 140 and an outer tube 150. The outer tube 150 may be sleeved outside the inner tube 140. The water inlet 111 may be provided at one end of the inner tube 140, and the water outlet 121 may be provided on the tube wall of the outer tube 150. A through hole 141 may be provided at one end of the inner tube 140 away from the water inlet 111, and the outer tube 150 may be connected to the inner tube 140 through the through hole 141. The number of through holes 141 may be one, and in an embodiment not shown in the figure, the number of through holes 141 may be multiple. In this way, the inner tube 140 and the outer tube 150 have a slow flow effect on the water flow. When applied to the electric water heater, the cold water flowing to the inner tank can reduce the disturbance of the hot water in the inner tank due to the slow flow effect, thereby improving the water outlet efficiency of the electric water heater. In addition, the through hole 141 can effectively change the flow direction of cold water in the water inlet pipe 100, preventing the cold water from impacting the water inlet pipe 100 along the axial direction of the inner tube 140, or the cold water from impacting and disturbing the hot water along the axial direction of the inner tube 140. It can be understood that the cold water enters the inner tube 140 from the water inlet 111, flows through the inner tube 140, flows into the outer tube 150 from the through hole 141, and flows out from the water outlet after flowing through the outer tube 150. The entire channel through which the cold water flows can be collectively referred to as the water flow channel 130.

[0035] In one embodiment of the present invention, refer to Figure 6 , the water outlet hole 121 can be closer to the water inlet 111 than the through hole 141. Such a configuration can increase the length of the water flow channel 130, thereby increasing the flow distance and flow time of the water flow in the pipeline. When applied to an electric water heater, it can further enhance the slow flow effect of the cold water flowing to the inner tank. The number of the water outlet hole 121 can be one or more, such as Figure 2 As shown, there can be multiple water outlet holes 121 , which avoids the large disturbance caused by cold water on hot water when it flows out of the water outlet holes 121 and reduces the impact of cold water on the filter material in the filter cavity 220 .

[0036] In one embodiment of the present invention, refer to Figure 2 , the filter body 210 can be enclosed to form a plurality of filter chambers 220. Each filter chamber 220 can be filled with filter material. A plurality of through holes 211 can be provided on the filter body 210, and two adjacent filter chambers 220 can be connected to each other through the through holes 211. With such a configuration, water can be filtered multiple times through the plurality of filter chambers 220 enclosed by the filter body 210, thereby greatly improving the water quality. It is understandable that water has multiple flow directions, and can be discharged after being filtered through each filter chamber 220, and can also be discharged after being filtered through some of the filter chambers 220.

[0037] In one embodiment of the present invention, refer again to Figure 2, the filter body 210 may have an outer wall 212 away from the outer tube 150 and an inner wall 218 located inside the outer wall 212. The filter cavity 220 may include an outer cavity 221 formed between the outer wall 212 and the inner wall 218, and the outer wall 212 may be provided with a plurality of overflow ports 213 with different water outlet directions, and the outer cavity 221 may be connected to the external space through the plurality of overflow ports 213. In this way, the filtered water has a plurality of different flow directions, and the flow rate of the outlet water flow can be reduced step by step. When applied to an electric water heater, the disturbance of the hot water in the inner tank can be further reduced, thereby improving the output rate of the hot water. The number of the overflow ports 213 may be one or more, and the shape of the overflow ports 213 may be circular, square, oval, etc. In order to further reduce the disturbance of the hot water in the inner tank, the number of the overflow ports 213 may be multiple, and the shapes of the plurality of overflow ports 213 may be different. The inner wall 218 can be bent multiple times to form multiple filter cavities 220, and filter materials can be placed in the multiple filter cavities 220. When placing the filter materials, it is necessary to ensure that the minimum size of the filter materials is larger than the maximum size of the through hole 211 to prevent the filter materials from being impacted by the water flow and leaking out of the filter cavity 220. The outer cavity 221 can be used to place filter materials. When placing the filter materials, it is necessary to ensure that the minimum size of the filter materials is larger than the maximum size of the overflow port 213 to prevent the filter materials from leaking out due to the impact of the water flow.

[0038] In one embodiment of the present utility model, in conjunction with reference to Figures 1 to 4 , the filter body 210 may include a first part 214 and a second part 215. The first part 214 and the second part 215 may be arranged in sequence along the axial direction of the outer tube 150, and the first part 214 and the second part 215 may be combined to form a filter chamber 220. Such an arrangement not only facilitates the assembly between the filter body 210 and the water inlet pipe 100, but also facilitates maintenance and replacement of filter materials. The filter body 210 may be evenly divided into the first part 214 and the second part 215, and of course the filter body 210 may also be unevenly divided into the first part 214 and the second part 215. It is understandable that the first part 214 and the second part 215 still have the technical features and technical effects of the above-mentioned filter body 210.

[0039] In one embodiment of the present utility model, in conjunction with reference to Figures 2 to 4, the first part 214 may have a first connection end face 2141 facing the second part 215. The second part 215 may have a second connection end face 2151 facing the first part 214. The first connection end face 2141 and the second connection end face 2151 may be connected by a latch structure 216. In this way, the firmness of the connection between the first part 214 and the second part 215 can be ensured, and no other connecting parts are required, thereby reducing the production cost. Of course, the first part 214 and the second part 215 can also be connected by other connection methods, such as welding or threaded connection.

[0040] In one embodiment of the present invention, again in conjunction with reference to Figures 2 to 4 The latch structure 216 may include a snap-in portion 2161 disposed on one of the first connection end surface 2141 and the second connection end surface 2151 and a snap-in slot 2162 disposed on the other of the first connection end surface 2141 and the second connection end surface 2151. The snap-in slot 2162 may have a notch end 2163 and a positioning end 2164, and the snap-in portion 2161 may slide from the notch end 2163 to the positioning end 2164 to relatively fix the first connection end surface 2141 and the second connection end surface 2151. Such a configuration not only facilitates the assembly operation, but also has a high connection firmness. The number of the snap-in portions 2161 may be one or more, and the number of the snap-in portions 2161 and the snap-in slots 2162 may be one or more, and the number of the snap-in portions 2161 and the number of the snap-in slots 2162 may correspond one to one. When there are multiple snap-in portions 2161 and snap-in slots 2162, one of the snap-in portions 2161 and the snap-in slots 2162 may be arranged circumferentially at intervals along the first connection end surface 2141, and the other of the snap-in portions 2161 and the snap-in slots 2162 may be arranged circumferentially at intervals along the second connection end surface 2151. Of course, the latching structure 216 may also include other structural members for latching, such as double buckles, etc.

[0041] In one embodiment of the present utility model, in conjunction with reference to Figure 2 , Figure 5 and Figure 6, a sealing member 160 may be provided at one end of the outer tube 150 near the water inlet 111, and the sealing member 160 may block the end of the outer tube 150 near the water inlet 111, and the end of the sealing member 160 away from the water inlet 111 may abut against the end of the first part 214 away from the second part 215. In this way, on the one hand, one end of the sealing member 160 blocks the end of the outer tube 150 near the water inlet pipe 100, thereby preventing cold water from flowing out from the end of the outer tube 150 near the water inlet 111; on the other hand, the end of the sealing member 160 away from the water inlet 111 limits the first part 214, thereby limiting the filter body 210. It is understandable that the sealing member 160 may be at least partially surrounded on the outer wall of the outer tube 150, and the sealing member 160 may be partially inserted into the end of the outer tube 150 near the water inlet 111 for blocking. The sealing member 160 may be made of rubber or silicone, etc. The outer wall of the sealing member 160 may be provided with a plurality of flanges 161 , and the sealing member 160 may be connected to other structural members through the flanges 161 .

[0042] In one embodiment of the present invention, refer again to Figure 2 , the outer wall of the outer tube 150 may protrude with a protrusion 170, and the protrusion 170 may abut against the end of the second part 215 away from the first part 214. In this way, the protrusion 170 limits the second part 215, thereby limiting the filter body 210 again. Of course, it is not ruled out that the protrusion 170 can be set separately from the outer wall of the outer tube 150, for example, the protrusion 170 can be a rubber ring that fits tightly with the outer wall of the outer tube 150, etc.

[0043] In one embodiment of the present invention, refer again to Figure 2 The filter body 210 may be formed with a through hole 217, and the outer tube 150 may be interference fit with the through hole 217. This arrangement ensures the firmness of the connection between the filter body 210 and the outer tube 150, and avoids the phenomenon of the outer tube 150 being broken by fasteners such as screws. Of course, the filter body 210 and the outer tube 150 may be arranged in an integrated manner, and the filter body 210 and the outer tube 150 may also be connected by other connection methods such as gluing and welding.

[0044] In one embodiment of the present utility model, in conjunction with reference to Figure 5 and Figure 6 The water inlet pipe 100 may be connected with a plug 180, which may have a closing portion 181 and a plug-in portion 182. The closing portion 181 may be connected to the end of the outer pipe 150 away from the water inlet 111, and the plug-in portion 182 may be inserted into the end of the inner pipe 140 away from the water inlet 111. This arrangement prevents cold water from flowing out along the axial direction of the pipe, thereby reducing the disturbance of cold water to hot water.

[0045] According to another embodiment of the utility model, an electric water heater is provided, which may include an inner tank and the water inlet pipe assembly 10 as described above, and the water inlet pipe assembly 10 may be placed in the inner tank. The electric water heater of the utility model improves the filtering effect and water quality by the water inlet pipe assembly 10, which can avoid scaling of the inner tank, thereby increasing the service life; and compared with the structure with a pre-filter device, the production cost is reduced. The electric water heater of the utility model includes the water inlet pipe assembly 10 as described above, and since the water inlet pipe assembly 10 has the beneficial effects as described above, the electric water heater including the water inlet pipe assembly 10 as described above must also have the beneficial effects as described above.

[0046] Specifically, see again Figure 2 The water inlet end 110 may also be connected to a connector 300, which may have a first end 310 and a second end 320, the second end 320 may be connected to the water inlet end 110 of the water inlet pipe 100, the second end 320 may have a groove 321 in the direction of the first end 310, the seal 160 may be sandwiched between the connector 300 and the water inlet pipe 100, the outer wall of the connector 300 may have a thread structure 330, and the connector 300 may be connected to an external pipeline through the thread structure 330. Cold water can enter the connector 300 through an external pipeline, and enter the inner tube 140 through the water inlet 111. Since the end of the inner tube 140 away from the water inlet 111 is closed by the plug 180, the cold water will flow out from the through hole 141 and enter the area between the outer tube 150 and the inner tube 140. Since the end of the outer tube 150 close to the water inlet 111 is blocked by the seal 160, and the end away from the water inlet 111 is blocked by the plug 180, the cold water flows from the water outlet 121 to the filter chamber 220. After being filtered by the filter material in the filter chamber 220, the water can flow from the multiple overflow ports 213 on the outer wall 212 to the inner tank of the water heater for storage and heating.

[0047] For the electric water heater of the embodiment of the utility model, after the cold water entering the inner tank passes through multiple flow channels, the water flow has multiple flow directions, and the flow rate of the outlet water flow can be reduced step by step to reduce the disturbance of the hot water in the inner tank. The hot water output rate of the water heater with a rated capacity of ≤60L can be increased to about 90%, and the hot water output rate of the water heater with a rated capacity of >60L can be increased to about 80%.

[0048] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A water inlet pipe assembly, characterized in that: Including water inlet pipe and filter; The water inlet pipe has a water inlet end and a connecting part, the water inlet end is provided with a water inlet, the connecting part is provided with a water outlet, and a water flow channel is formed between the water inlet and the water outlet; The filter element is sleeved outside the connecting portion; Wherein, the filter element comprises a filter body, the filter body encloses a filter cavity, the filter cavity is filled with filter material, and the filter cavity is connected with the water flow channel through the water outlet hole.

2. The water inlet pipe assembly according to claim 1, characterized in that: The water inlet pipe comprises an inner pipe and an outer pipe, the outer pipe is sleeved outside the inner pipe, the water inlet is arranged at one end of the inner pipe, and the water outlet is arranged on the pipe wall of the outer pipe; A through hole is provided on one end of the inner tube away from the water inlet, and the outer tube is connected with the inner tube through the through hole.

3. The water inlet pipe assembly according to claim 2, characterized in that: The water outlet hole is closer to the water inlet than the through hole.

4. The water inlet pipe assembly according to claim 2, characterized in that: The filter body is enclosed to form a plurality of filter cavities, each of which is filled with the filter material. The filter body is provided with a plurality of through holes, and two adjacent filter cavities are connected to each other through the through holes.

5. The water inlet pipe assembly according to claim 4, characterized in that: The filter body comprises an outer wall body away from the outer tube and an inner wall body located within the outer wall body. The filter cavity comprises an outer layer cavity formed between the outer wall body and the inner wall body. The outer wall body is provided with a plurality of overflow ports with different water outlet directions. The outer layer cavity is connected to the external space through the plurality of overflow ports.

6. The water inlet pipe assembly according to claim 2, characterized in that: The filter body includes a first part and a second part, the first part and the second part are sequentially arranged along the axial direction of the outer tube, and the first part and the second part are matched to form the filter cavity.

7. The water inlet pipe assembly according to claim 6, characterized in that: The first part has a first connecting end surface facing the second part, and the second part has a second connecting end surface facing the first part. The first connecting end surface and the second connecting end surface are snap-connected via a snap structure.

8. The water inlet pipe assembly according to claim 7, characterized in that: The latch structure comprises: a snap-in portion provided on one of the first connection end surface and the second connection end surface; and a card slot provided on the other of the first connection end surface and the second connection end surface; The card slot has a notch end and a positioning end, and the card-in portion slides from the notch end to the positioning end to relatively fix the first connection end surface and the second connection end surface.

9. The water inlet pipe assembly according to claim 8, characterized in that: A sealing member is provided at one end of the outer tube close to the water inlet, the sealing member blocks the end of the outer tube close to the water inlet, and one end of the sealing member away from the water inlet abuts against one end of the first part away from the second part.

10. The water inlet pipe assembly according to claim 9, characterized in that: A convex portion protrudes from the outer wall of the outer tube, and the convex portion abuts against an end of the second part away from the first part.

11. The water inlet pipe assembly according to claim 2, characterized in that: The filter body is formed with a penetration hole, and the outer tube is interference-fitted with the penetration hole.

12. The water inlet pipe assembly according to claim 2, characterized in that: The water inlet pipe is connected with a plug, which has a closing portion and an inserting portion, the closing portion is connected to the end of the outer tube away from the water inlet, and the inserting portion is inserted into the end of the inner tube away from the water inlet.

13. An electric water heater, characterized in that: It comprises an inner liner and a water inlet pipe assembly according to any one of claims 1 to 12, wherein the water inlet pipe assembly is placed in the inner liner.

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