Plumbing components and water heaters

Abstract

The present invention discloses a water pipe assembly and a water heater. The water pipe assembly includes: a connecting water pipe having a water inlet channel and a water outlet channel, a water outlet interface provided at the lower end of the connecting water pipe, the water outlet interface communicating with the water outlet channel; a side water inlet provided on the connecting water pipe communicating with the water inlet channel; and an external water inlet pipe having a water inlet flow channel that extends in a circuitous or swiveling manner, the external water inlet pipe being disposed outside the connecting water pipe, the water inlet flow channel communicating with the side water inlet. Thus, by disposing the external water inlet pipe having a water inlet flow channel that extends in a circuitous or swiveling manner outside the connecting water pipe, a water resistor can be formed outside the inner tank, thereby forming a water inlet anti-electrical wall structure outside the inner tank.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a water pipe assembly and a water heater. Background Art

[0002] In the prior art, the water inlet and outlet pipes of a water heater are separately provided, and the inner tank is usually provided with two water pipe interfaces for installing the inlet and outlet pipes respectively. This makes the inner tank processing process more cumbersome (it requires welding two water pipe interfaces) and the water heater assembly process more complicated and tedious.

[0003] In order to solve the above problem, the related technology (which should be pointed out is not the existing technology) integrates the water inlet and outlet pipes at the connection with the inner tank into one, that is, forming a water inlet and outlet connecting pipe. However, in this technology, the problem of the water inlet anti-electric wall needs to be solved. Summary of the Invention

[0004] The main purpose of the present invention is to propose a water pipe assembly, which aims to solve the technical problem in the related art of how to set up a water inlet anti-electric wall based on the inlet and outlet water pipes.

[0005] To achieve the above objectives, the present invention provides a water pipe assembly for a water heater, the water pipe assembly comprising:

[0006] A connecting water pipe, the connecting water pipe having a water inlet channel and a water outlet channel, a water outlet interface being provided at the lower end of the connecting water pipe, the water outlet interface being communicated with the water outlet channel; a side water inlet being communicated with the water inlet channel being provided on the connecting water pipe; and

[0007] An external water inlet pipe has a water inlet channel that extends in a circuitous manner or in a rotating manner. The external water inlet pipe is arranged outside the connecting water pipe, and the water inlet channel is communicated with the side water inlet.

[0008] Optionally, the external water inlet pipe is arranged on one side of the connecting water pipe.

[0009] Optionally, the external water inlet pipe includes a water pipe body and a steering head, the water pipe body has a plurality of branch channels extending along the length direction of the body, one end of the water pipe body is connected to the connecting water pipe, and one of the branch channels is connected to the side water inlet; the steering head is installed at the other end of the water pipe body, and a steering channel is provided in the steering head, and the steering channel connects the two branch channels so that the water in one of the branch channels is diverted and flows to the other branch channel to form the water inlet channel.

[0010] Optionally, the water pipe body includes a plurality of branch pipe bodies, each of which is provided with a branch channel.

[0011] Optionally, the external water inlet pipe further includes a water inlet interface, which is located on the lower side of the water pipe body and connected to the water pipe body, and the water inlet interface is communicated with one of the branch channels.

[0012] Optionally, two branch channels are provided, and one diverting channel is provided to connect the two branch channels.

[0013] Optionally, the external water inlet pipe also includes a water inlet interface, which is located on the lower side of the steering head and connected to the steering head. The steering head also has a steering connection channel connecting the water inlet interface and one of the branch channels.

[0014] Optionally, there are three branch channels, namely the first channel, the second channel, and the third channel connected to the side water inlet, and the turning connection channel connects the water inlet interface and the first channel; the turning channel is provided with one to connect the second channel and the third channel; the other end of the first channel is connected to the other end of the second channel.

[0015] Optionally, the connecting water pipe is provided with a water inlet convex portion, the water pipe body is connected to the water inlet convex portion, and the water inlet convex portion has a water inlet channel connecting the side water inlet and the third flow channel, and a diverter channel connecting the other end of the first flow channel and the other end of the second flow channel.

[0016] Optionally, the water pipe main body and the connecting water pipe are integrally arranged.

[0017] Optionally, the outer diameter or equivalent outer diameter of the connecting water pipe is greater than or equal to 22 mm and less than or equal to 50 mm.

[0018] Optionally, the connecting water pipe includes:

[0019] A connecting base, wherein the connecting base has a water outlet through-hole, the water outlet interface is provided on the lower side of the connecting base, and the water outlet interface is communicated with the water outlet through-hole;

[0020] an inner water outlet pipe, one end of which is integrally provided on the connection base, and the inner water outlet pipe is connected to the water outlet through hole; and

[0021] An outer water inlet pipe, one end of which is integrally arranged on the connecting base, the outer water inlet pipe is located outside the inner water outlet pipe, a water inlet channel is formed between the outer water inlet pipe, the inner water outlet pipe and the connecting base, the side water inlet is arranged on the outer water inlet pipe, and the external water inlet pipe is arranged outside the outer water inlet pipe.

[0022] The present invention also provides a water heater, comprising:

[0023] An inner container having a water inlet and outlet; and

[0024] For example, the water pipe assembly is arranged at the water inlet and outlet.

[0025] In the present invention, by making the connecting water pipe have both a water inlet channel for sending water into the inner tank and a water outlet channel for sending water in the inner tank out, the number of holes opened on the outer shell and the inner tank of the water heater can be reduced, the processing technology of the inner tank can be simplified, and the assembly process of the water heater can be simplified, thereby reducing production costs.

[0026] Moreover, by arranging an external water inlet pipe with a water inlet flow channel that extends in a circuitous manner or in a rotating manner outside the connecting water pipe, a water resistor can be formed outside the inner tank, so as to form a water inlet anti-electric wall structure outside the inner tank. On the one hand, this can avoid the need to arrange a water inlet anti-electric wall structure inside the inner tank to save space inside the tank; on the other hand, it can also facilitate the arrangement of the water supply hole close to the bottom of the inner tank, so that when water is supplied to the inner tank, it is supplied to the bottom of the inner tank to form water temperature stratification. In this way, the stratification principle of hot water can be utilized, so that the cold water at the bottom of the inner tank can squeeze the hot water at the top of the inner tank out of the inner tank from the water outlet pipe inside the tank in turn, thereby improving the hot water output rate of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a schematic structural diagram of an embodiment of a water heater of the present invention;

[0029] Figure 2 for Figure 1 Schematic cross-section of the water heater;

[0030] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0031] Figure 4 for Figure 1 Schematic diagram of the structure of the reclaimed water pipe assembly;

[0032] Figure 5 for Figure 4 Exploded diagram of the greywater pipe assembly;

[0033] Figure 6 for Figure 5 Schematic diagram of the structure of the transfer joint;

[0034] Figure 7for Figure 5 Schematic diagram of the structure of the connecting water pipe;

[0035] Figure 8 for Figure 5 Schematic diagram of the structure of the middle steering head;

[0036] Figure 9 for Figure 4 A schematic cross-sectional view of a greywater pipe assembly;

[0037] Figure 10 for Figure 9 A partial enlarged view of point B in the middle;

[0038] Figure 11 for Figure 9 A partial schematic diagram of the lower part of the middle connecting water pipe;

[0039] Figure 12 for Figure 9 A partial schematic diagram of the middle steering head;

[0040] Figure 13 for Figure 4 A schematic diagram of the structure of the middle card connector;

[0041] Figure 14 for Figure 4 Schematic diagram of the structure of the main body of the reclaimed water pipe;

[0042] Figure 15 for Figure 14 Side view of the main body of the greywater pipe;

[0043] Figure 16 This is a structural schematic diagram of a water pipe assembly in another embodiment of the water heater of the present invention;

[0044] Figure 17 for Figure 16 Exploded diagram of the greywater pipe assembly;

[0045] Figure 18 for Figure 16 A schematic cross-sectional view of the center line of the two flow channels passing through the main body of the water pipe;

[0046] Figure 19 for Figure 16 A schematic cross-sectional view of the center line of the water inlet and outlet;

[0047] Figure 20 A schematic structural diagram of another embodiment of the water heater of the present invention;

[0048] Figure 21 for Figure 20 A partial schematic diagram of the water pipe connection;

[0049] Figure 22This is a structural schematic diagram of a water pipe assembly in another embodiment of the water heater of the present invention.

[0050] Description of Figure Numbers:

[0051] 100, water pipe assembly; 10, connecting water pipe; 11, connecting base; 111, water outlet hole; 112, water outlet interface; 1121, water outlet inner interface; 1122, water outlet metal outer interface; 12, water outlet inner pipe; 13, water inlet outer pipe; 131, side water inlet; 132, water supply hole; 133, mounting section; 134, water supply section; 135, mounting ring groove; 136, supporting portion; 137, water inlet convex portion; 1371, water inlet flow channel; 1372, diverter flow channel; 138, annular mounting groove; 139, first connecting convex portion; 13a, first limiting portion Position plate; 14, water inlet channel; 20, water outlet pipe in the bile; 21, connecting ring protrusion; 22, metal outer tube; 23, plastic inner tube; 30, connecting joint; 31, water passage; 32, spacing protrusion; 33, connecting ring groove; 34, accommodating step; 40, diversion pipe; 41, diversion hole; 51, water inlet pipe in the bile; 52, connecting sleeve; 521, limiting fork groove; 53, fork buckle; 531, U-shaped fork; 532, fixed base; 54, long connecting column; 55, first annular seal; 56, second annular seal; 60, adapter; 61, first adapter section ; 611, second connecting protrusion; 62, second transition section; 70, snap-fitting piece; 71, connecting base; 72, snap-fitting spring; 721, snap-fitting hole; 722, elastic support section; 723, snap-fitting section; 7231, first snap-fitting sub-section; 7232, second snap-fitting sub-section; 7233, first side pressure piece; 724, guide section; 725, plug-in piece; 73, first snap-fitting half ring; 731, undercut; 74, second snap-fitting half ring; 741, buckle hole; 80, external water inlet pipe; 81, water inlet channel; 82, water pipe body; 821, diversion channel; 82 1a, first flow channel; 821b, second flow channel; 821c, third flow channel; 83, steering head; 831, steering flow channel; 832, steering connecting flow channel; 8321, first flow section; 8322, second flow section; 833, mounting port; 834, steering column; 8341, mounting plane; 835, connecting column; 84, plug; 841, stop boss; 85, auxiliary fixing foot; 86, water inlet interface; 90, flow sensor; 91, magnetic rotor; 92, Hall element; 1000, water heater; 200, inner tank; 210, water pipe joint.

[0052] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] It should be noted that if the embodiments of the present invention include descriptions of "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0055] In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution in which both A and B are satisfied.

[0056] The present invention provides a water pipe assembly and a water heater. The water pipe assembly is used for the water heater.

[0057] In one embodiment of the present invention, Figure 1 and 2 As shown, the water heater 1000 includes an outer shell, an inner tank 200 and a water pipe assembly 100. The inner tank 200 is arranged in the outer shell. A water outlet is provided on the inner tank 200, and the water pipe assembly 100 is arranged at the water outlet.

[0058] In one embodiment, if Figure 1 and 2 As shown, the water outlet is a water inlet and outlet, and the water pipe assembly 100 includes a connecting water pipe 10, and the connecting water pipe 10 is an inlet and outlet water pipe, that is, the connecting water pipe 10 has an inlet channel 14 for sending water into the inner tank 200 and a water outlet channel for sending water out of the inner tank 200, and the inlet and outlet water pipes are connected at the inlet and outlet.

[0059] Further, if Figure 1-15 As shown, the connecting water pipe 10 includes a connecting base 11, an inner water outlet pipe 12, and an outer water inlet pipe 13. The connecting base 11 has a water outlet through-hole 111. One end of the inner water outlet pipe 12 is integrally provided on the connecting base 11 and communicates with the water outlet through-hole 111. One end of the outer water inlet pipe 13 is integrally provided on the connecting base 11 and is located outside the inner water outlet pipe 12. A water inlet channel 14 is formed between the outer water inlet pipe 13, the inner water outlet pipe 12, and the connecting base 11. The outer water inlet pipe 13 is provided with a side water inlet 131 that communicates with the water inlet channel 14.

[0060] The water outlet through hole 111 and the inner channel of the water outlet inner tube 12 together form a water outlet channel.

[0061] Among them, the outer tube wall surface of the water outlet inner tube 12 is used to form the inner wall surface of the water inlet channel 14, the inner tube wall surface of the water inlet outer tube 13 is used to form the outer wall surface of the water inlet channel 14, and the connecting base 11 is used to block one end of the space between the water outlet inner tube 12 and the water inlet outer tube 13 to form the water inlet channel 14.

[0062] When the connecting water pipe 10 is applied to the inner tank 200, it extends into the inner tank 200 through the water inlet and outlet ports on the inner tank 200, and the side water inlet 131 is located outside the inner tank 200. External water can enter the water inlet channel 14 through the side water inlet 131 and then enter the inner tank 200 through the water inlet channel 14. The (hot) water in the inner tank 200 can flow into the water outlet inner pipe 12 through one end (i.e., the upper end) of the water outlet inner pipe 12 extending into the inner tank 200, and then flow out through the water outlet inner pipe 12 and the water outlet through-hole 111 to be delivered to the water consumption end of the water heater 1000 (such as a shower or faucet).

[0063] Optionally, the inner water outlet pipe 12 and the outer water supply pipe can be straight pipes extending in the vertical direction, and the extension direction of the water outlet through hole 111 is consistent with the length direction of the inner water outlet pipe 12 to simplify the structure. Of course, in other embodiments, the water outlet through hole 111 can also be a bent hole, etc.

[0064] Specifically, a water outlet interface 112 is provided at the lower end of the connection base 11 (i.e., the end facing away from the water outlet inner tube 12 and the water inlet outer tube 13) for connecting to the water outlet pipe. The extension direction of the water outlet interface 112 is consistent with the extension direction of the water outlet inner tube 12. Optionally, the water outlet interface 112 includes an inner water outlet interface 1121 integrally provided with the connection base 11 and an outer metal water outlet interface 1122 provided outside the inner water outlet interface 1121.

[0065] In the present invention, by arranging one end of the water outlet inner tube 12 and the water inlet outer tube 13 on the connecting base 11, a water inlet channel 14 can be formed between the water inlet outer tube 13, the water outlet inner tube 12 and the connecting base 11, so that external water can be sent into the inner pot 200 through the water inlet channel 14; at the same time, the water outlet inner tube 12 is connected to the water outlet through hole 111 on the connecting base 11 to form a water outlet channel, so that the (hot) water in the inner pot 200 can flow out through the water outlet channel, that is, The connecting water pipe 10 has both a water inlet channel 14 for delivering water to the inner tank 200 and a water outlet channel for delivering the water in the inner tank 200, thereby reducing the need to open holes on the outer shell and the inner tank 200 of the water heater 1000. Only a water pipe interface needs to be welded on the inner tank 200, thereby simplifying the processing technology of the inner tank 200 and the assembly process of the water heater 1000, reducing production costs; and reducing processing quality problems such as leakage caused by welding and other processes.

[0066] Moreover, since one end of the water outlet inner pipe 12 and the water inlet outer pipe 13 are both integrally provided on the connection base 11, on the one hand, the corresponding assembly steps can be avoided and the installation process can be simplified; on the other hand, the risk of water leakage can be reduced.

[0067] Specifically, the connecting water pipe 10 is made of insulating material, such as plastic.

[0068] Furthermore, if Figure 9 and 11 As shown, the inner water outlet pipe 12 and the outer water inlet pipe 13 are spaced apart to form a water inlet channel 14 between the inner water outlet pipe 12 and the outer water inlet pipe 13. In this way, space can be maximized.

[0069] Optionally, the water outlet inner pipe 12 is concentrically arranged with the water inlet outer pipe 13. This makes it easier to design a mold and reduces production difficulty.

[0070] Of course, in other embodiments, the inner water outlet tube 12 can also be offset in the outer water inlet tube 13 so that one side of the inner water outlet tube 12 is integrally arranged with the outer water inlet tube 13, thereby forming a water inlet channel 14 between the inner water outlet tube 12 and the outer water inlet tube 13.

[0071] In the present invention, by arranging the water inlet outer tube 13 outside the water outlet inner tube 12, and utilizing the water outlet inner tube 12 to form a water inlet channel 14 between the water outlet inner tube 12 and the water inlet outer tube 13, it is beneficial to reduce the outer diameter or equivalent outer diameter of the water inlet outer tube 13 (i.e., the connecting water pipe 10), which can help reduce the diameter or equivalent diameter of the water inlet and outlet on the inner tank 200, so as to enhance / ensure the strength of the inner tank 200.

[0072] In a specific embodiment, the water inlet outer tube 13 can be configured as a circular tube or other tube shapes, such as a square tube. It is understood that when the water inlet outer tube 13 is a circular tube, the outer diameter can be used to represent the thickness of the water inlet outer tube 13; when the water inlet outer tube 13 is a non-circular tube, the equivalent diameter can be used to represent the thickness of the water inlet outer tube 13. The equivalent outer diameter is the diameter of a circle with the same cross-sectional area as the non-circular tube. Similarly, the water outlet inner tube 12 can also be configured as a circular tube or other tube shapes, such as a square tube.

[0073] Furthermore, the outer diameter or equivalent outer diameter of the water inlet outer pipe 13 is greater than or equal to 22 mm and less than or equal to 50 mm, such as 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, 46 mm, 47 mm, 48 mm or 49 mm, etc.

[0074] It can be understood that if the outer diameter or equivalent outer diameter of the water inlet outer tube 13 is too small, the water inlet channel 14 and the water outlet channel will be severely compressed, which is not conducive to increasing the water flow rate; if the outer diameter or equivalent outer diameter of the water inlet outer tube 13 is too large, the diameter or equivalent diameter of the water inlet and outlet on the inner liner 200 will be too large, which will easily reduce the strength of the inner liner 200.

[0075] In this embodiment, in order to reduce the difficulty of production and coordination with other components, the water inlet outer pipe 13 and the water outlet inner pipe 12 are both configured as round pipes.

[0076] In actual design, it can be understood that when water is supplied to the inner tank 200 from the outside, it is usually supplied to the bottom of the inner tank 200, which is conducive to water temperature stratification; when the (hot) water in the inner tank 200 is supplied, the (hot) water in the upper part of the inner tank 200 is usually supplied; in this way, it is necessary to make the upper end of the water outlet inner tube 12 (that is, the end away from the connection base 11) convex upward to the upper end of the water inlet outer tube 13 (that is, the end away from the connection base 11), so that the upper end of the water outlet inner tube 12 is located at the upper part of the inner tank 200; but this will undoubtedly increase the production difficulty of the connecting water pipe 10, such as difficulty in demolding (or even inability to demold), or difficulty in mold making (or even inability to make).

[0077] To address this issue, the present invention further improves the design by limiting the length of the connecting water pipe 10 and adding an internal water outlet pipe 20. In other words, the outlet pipe is divided into two sections, one integrally formed with the connecting base 11 to form the connecting water pipe 10, and the other section assembled later. This reduces the difficulty of manufacturing the connecting water pipe 10.

[0078] Specifically, the water pipe assembly 100 further includes an inner-tank water outlet pipe 20, which is connected to the upper end of the inner-tank water outlet pipe 12 (i.e., the end away from the connection base 11). Thus, by separately disposing the inner-tank water outlet pipe 20 at the upper end of the inner-tank water outlet pipe 12, the length of the inner-tank water outlet pipe 12 can be reduced, thereby reducing the length of the connecting water pipe 10, thereby reducing the difficulty of demolding the connecting water pipe 10, and thus reducing the difficulty of manufacturing the connecting water pipe 10.

[0079] Specifically, the bile water outlet pipe 20 can be set as a universal standard part to reduce costs.

[0080] Further, if Figure 9 As shown, the ratio of the length L1 of the water outlet pipe 20 in the bile to the length L2 of the connecting water pipe 10 is greater than or equal to 0.9 and less than or equal to 3, such as 0.95, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8 or 2.9, etc.

[0081] It can be understood that if the ratio of the length L1 of the water outlet pipe 20 in the tank to the length L2 of the connecting water pipe 10 is too small, the manufacturing of the connecting water pipe 10 will be too difficult; if it is too large, the length of the connecting water pipe 10 will be too short, thereby increasing the difficulty of installing the connecting water pipe 10 and the inner tank 200.

[0082] Further, if Figure 9 As shown, the upper end of the outer water inlet tube 13 is provided with a plurality of water supply holes 132, which are connected to the water inlet channel 14. Thus, water in the water inlet channel 14 can be delivered into the inner liner 200 through the water supply holes 132. Of course, in other embodiments, water can also be delivered directly into the inner liner 200 from the upper end of the outer water inlet tube 13.

[0083] Further, if Figure 9 and 10 As shown, the water pipe assembly 100 also includes a connecting joint 30, the upper ends of the water outlet inner pipe 12 and the water inlet outer pipe 13 (i.e., the end away from the connecting base 11) are both connected to one end of the connecting joint 30, and the lower end of the water outlet pipe 20 in the bile (i.e., the end facing the connecting base 11) is connected to the other end of the connecting joint 30, and the connecting joint 30 has a water passage 31 connecting the water outlet inner pipe 12 and the water outlet pipe 20 in the bile.

[0084] In this way, by providing the connecting joint 30 , it is convenient to connect the water outlet pipe 20 in the bile and the connecting water pipe 10 .

[0085] Specifically, the upper end of the inner water outlet tube 12 is sealedly connected to the water passage 31, thereby connecting the inner water outlet tube 12 with the water passage 31. The lower end of the outer water inlet tube 13 is sealedly connected to the water passage 31, thereby connecting the outer water inlet tube 13 with the water passage 31. In this way, the water passage 31 can connect the inner water outlet tube 12 with the water outlet tube 20 in the tank.

[0086] Of course, the upper end of the water outlet inner tube 12 and the connecting joint 30, that is, the lower end of the water inlet outer tube 13 and the connecting joint 30 can also be connected in other ways, such as the lower end sealing sleeve of the water inlet outer tube 13 can be arranged outside the connecting joint 30, or the upper end sealing sleeve of the water outlet inner tube 12 can be arranged outside the connecting joint 30, or buried in the inner wall of the connecting joint 30.

[0087] Further, if Figure 9 and 10 As shown, the inner wall surface of the water passage 31 is provided with a spacer protrusion 32, and the inner water outlet pipe 20 and the inner water outlet pipe 12 are respectively provided on both sides of the spacer protrusion 32. In this way, the spacer protrusion 32 can position the inner water outlet pipe 20 and the inner water outlet pipe 12 during assembly and prevent the two from abutting each other.

[0088] Specifically, the spacing protrusion 32 can be set to be annular, or a plurality of (ie, greater than or equal to two) spacing protrusions 32 can be distributed in annular shape.

[0089] Further, if Figure 9 and 10 As shown, the connection joint 30 further has a connection annular groove 33 located outside the communication channel, and the water inlet outer pipe 13 is sealed and connected to the connection annular groove 33. In this way, the connection strength between the water inlet outer pipe 13 and the connection joint 30 can be easily improved.

[0090] Optionally, the bile water outlet pipe 20 and the connecting joint 30 may be connected by hot-melt welding.

[0091] Optionally, the water pipe 10 and the connecting joint 30 may be connected by heat-melt welding.

[0092] Further, if Figure 3 、 9 As shown in FIG11 , the water inlet outer pipe 13 includes a mounting section 133 connected to the connection base 11 and a water delivery section 134 connected to the mounting section 133 . The wall thickness of the mounting section 133 is greater than that of the water delivery section 134 .

[0093] Specifically, the water supply hole 132 is provided in the water supply section 134 .

[0094] It is understood that the lower portion of the water inlet outer tube 13 needs to be connected to the inner liner 200. To improve connection reliability, a higher strength requirement is required, that is, a thicker tube wall is required. However, the upper portion of the water inlet outer tube 13 only needs to supply water into the inner liner 200, so the strength requirement is lower and the tube wall thickness can be thinner. This can reduce production costs.

[0095] Further, if Figure 3 、 9 As shown in FIG11 , the water pipe assembly 100 further includes a guide pipe 40 , which is disposed outside the water inlet outer pipe 13 . The guide pipe 40 is disposed corresponding to the water delivery section 134 . The guide pipe 40 is provided with a plurality of guide holes 41 , and the diameter or equivalent diameter of the guide hole 41 is smaller than the diameter or equivalent diameter of the water delivery hole 132 .

[0096] Specifically, the guide pipe 40 and the water supply section 134 are spaced apart.

[0097] In this way, the water entering the inner pot 200 can be diverted again, so that the water entering the inner pot 200 is distributed more evenly, which is convenient for heating.

[0098] Specifically, such as Figure 3 、 9 As shown in Figures 11 and 11 , the wall thickness of the flow guide pipe 40 is smaller than the wall thickness of the water delivery section 134 .

[0099] Further, if Figure 3 、 9 As shown in FIG11 , the outer wall of the mounting section 133 protrudes outward from the outer wall of the water delivery section 134, so that the wall thickness of the mounting section 133 is greater than the wall thickness of the water delivery section 134. In this way, the inner wall of the outlet inner pipe 12 can be made flat.

[0100] Further, if Figure 3 、 9 As shown in FIG11 , a mounting groove 135 is formed on the outer wall of the mounting section 133 at one end away from the connection base 11. One end (i.e., the lower end) of the flow guide tube 40 is mounted within the mounting groove 135. This facilitates positioning of the lower end of the flow guide tube 40 and prevents the flow guide tube 40 from protruding laterally beyond the mounting section 133, thereby facilitating the water pipe assembly 100 to extend through the water opening into the inner tank 200.

[0101] Optionally, the lower end of the flow guide tube 40 and the mounting section 133 may be connected by heat-melting welding.

[0102] Further, if Figure 3 、 9As shown in Figure 11, the connecting joint 30 also has an accommodating step 34 outside the connecting ring groove 33, and the other end (i.e., the upper end) of the guide tube 40 is installed at the accommodating step 34. In this way, the upper end of the guide tube 40 can be easily limited.

[0103] Optionally, the upper end of the flow guide tube 40 and the connecting joint 30 may be connected by heat-melting welding.

[0104] Specifically, the outer wall of the flow guide tube 40 is flush with the outer wall of the mounting section 133. This not only facilitates the water pipe assembly 100 to extend into the inner tank 200 through the water opening, but also improves the aesthetics.

[0105] It should be noted that, in some embodiments, the flow guide may not be provided.

[0106] In another embodiment of the present invention, in order to further reduce the difficulty of manufacturing the connecting water pipe 10, the length of the connecting water pipe 10 can be further reduced, but another section of water inlet pipe needs to be added to form a water supply structure. Figure 16-19 As shown, the water pipe assembly 100 can further include an inner water inlet pipe 51 and an inner water outlet pipe 20 in the bile, wherein the inner water outlet pipe 20 in the bile is connected to the inner water outlet pipe 12, and the inner water inlet pipe 51 in the bile is connected to the outer water inlet pipe 13. The inner water inlet pipe 51 in the bile is arranged outside the inner water outlet pipe 20 in the bile, and an inner water supply channel in the bile is formed between the inner water inlet pipe 51 and the inner water outlet pipe 20 in the bile, which is connected to the water inlet channel 14.

[0107] In this embodiment, further, Figure 19 As shown, the wall thickness of the water inlet pipe 51 inside the bile is smaller than the wall thickness of the water inlet outer pipe 13. In this way, the cost of the water inlet pipe 51 inside the bile can be reduced.

[0108] In this embodiment, further, Figure 19 As shown, the water inlet pipe 51 in the bile is provided with a plurality of water supply holes 132 connected with the water supply channel.

[0109] In this embodiment, the plurality of water supply holes 132 are distributed in the middle of the water inlet pipe 51 in the bile.

[0110] It can be understood that since the water inlet pipe 51 in the bile is an independent structural component, the water supply hole 132 thereon can be processed to be very small, so there is no need to add a guide component.

[0111] In this embodiment, further, Figure 19 As shown, a connecting ring protrusion 21 is convexly provided on the outer tube wall of the water outlet pipe 20 in the bile, and the upper end of the water inlet pipe 51 in the bile is sealed and connected to the connecting ring protrusion 21.

[0112] In this way, on the one hand, the upper end of the water inlet pipe 51 in the bile can be limited, and on the other hand, the upper end of the water inlet pipe 51 in the bile can be sealed.

[0113] In this embodiment, further, Figure 16 、 17 As shown in Figures 19 and 19, the water pipe assembly 100 further includes a connecting sleeve 52, which is sealingly disposed outside the connection between the water inlet pipe 51 in the liner and the outer water inlet pipe 13. Thus, by providing the connecting sleeve 52, the connection strength between the water inlet pipe 51 in the liner and the outer water inlet pipe 13 can be improved on the one hand, and the sealing performance of the connection between the two can also be improved on the other hand.

[0114] In this embodiment, specifically, the connecting sleeve 52 can be welded to the outside of the water inlet pipe 51 in the tank by heat-melting welding.

[0115] In this embodiment, specifically, Figure 19 As shown, a sealing ring is provided between the connecting sleeve 52 and the water inlet outer pipe 13 .

[0116] In this embodiment, further, Figure 16 、 17 As shown in Figures 19 and 19, the water pipe assembly 100 also includes a connecting piece, and a support portion 136 is protruding from the outer tube wall of the water inlet outer tube 13. The connecting piece connects the support portion 136 and the connecting sleeve 52 to fix the connecting sleeve 52 at the connection between the water inlet pipe 51 in the bile and the water inlet outer tube 13.

[0117] In this embodiment, specifically, Figure 16 、 17 As shown in FIG. 19 , the connecting member includes a fork buckle 53 and a long connecting column 54 . The fork buckle 53 is forked to the connecting sleeve 52 , and the long connecting column 54 connects the fork buckle 53 and the supporting portion 136 .

[0118] Optionally, the fork buckle 53 includes a fixed base 532 and a U-shaped fork 531 connected to the fixed base 532. The side of the connecting sleeve 52 is provided with a limiting fork groove 521. The U-shaped fork 531 is forked in the limiting fork groove 521. The long connecting column 54 connects the fixed base 532 and the support part 136.

[0119] In this embodiment, the long connecting column 54 can be a bolt or a connecting pin.

[0120] In this embodiment, specifically, Figure 16 、 17 As shown in FIG19 , an inner limiting step is formed at the upper end of the inner tube wall of the inner water outlet tube 12 , and the lower end of the inner water outlet tube 20 is provided at the inner limiting step.

[0121] In this embodiment, specifically, Figure 16 、 17 As shown in FIG19 , an outer limiting step is formed on the upper end of the outer tube wall of the water inlet outer tube 13 , and the lower end of the inner water inlet tube 51 is provided at the outer limiting step.

[0122] It should be pointed out that, relative to the structural form of the connecting water pipe 10 in the above embodiments, in other embodiments, the connecting water pipe 10 can also be provided with a water inlet channel 14 for delivering water to the inner tank 200 and a water outlet channel for delivering water from the inner tank 200 in other forms. For example, a straight plate, or an arc-shaped, or S-shaped partition plate extending along the length direction of the connecting water pipe 10 can be provided to separate the water inlet channel 14 and the water outlet channel in the connecting water pipe 10; and a water outlet interface 112 connected to the water outlet channel can be provided at the lower end of the connecting water pipe 10, and the extension direction of the center line of the water outlet interface 112 is consistent with the length direction of the connecting water pipe 10; and a side water inlet 131 connected to the water inlet channel 14 is provided on the connecting water pipe 10; and so on.

[0123] It can be understood that for the water pipe assembly 100 in the above embodiment, the problem of water inlet anti-electric wall also needs to be solved.

[0124] Furthermore, if Figure 4 、 5 As shown in 9, or 16-19, the water pipe assembly 100 also includes an external water inlet pipe 80, which is arranged outside the connecting water pipe 10 (hereinafter, the connecting water pipe 10 is explained as including a connecting base 11, an inner water outlet pipe 12 and an outer water inlet pipe 13), and the external water inlet pipe 80 has a water inlet channel 81 connected to the water inlet channel 81.

[0125] Specifically, the water inlet channel 81 is communicated with the side water inlet 131 , so as to be communicated with the water inlet channel 14 through the side water inlet 131 .

[0126] It can be understood that in the present invention, by arranging an external water inlet pipe 80 having a water inlet flow channel 81 outside the water inlet outer pipe 13, a water resistor can be formed outside the inner tank 200, so as to form a water inlet anti-electric wall structure outside the inner tank 200. On the one hand, it can avoid setting a water inlet anti-electric wall structure inside the inner tank 200 to save space inside the tank; on the other hand, it can also facilitate the arrangement of the water supply hole 132 close to the bottom of the inner tank 200, so that when water is supplied to the inner tank 200, it is supplied to the bottom of the inner tank 200 to form water temperature stratification. In this way, the stratification principle of hot water can be utilized, so that the cold water at the bottom of the inner tank 200 can squeeze the hot water at the top of the inner tank 200 out of the inner tank 200 from the water outlet pipe 20 inside the tank in turn, thereby improving the hot water output rate of the water heater 1000.

[0127] Furthermore, if Figure 14As shown in FIG18 , the water inlet channel 81 extends in a circuitous manner or in a rotating manner. In this way, the space utilization rate can be improved, and the total length of the water inlet channel 81 can be effectively increased under a limited volume, so as to increase the water circuit resistance and achieve a better anti-leakage effect.

[0128] Furthermore, if Figure 4 、 5 As shown in Figures 9 or 16-19, the external water inlet pipe 80 is arranged on one side of the water inlet outer pipe 13.

[0129] In this way, by arranging the external water inlet pipe 80 on one side of the water inlet outer pipe 13, the overall structural form of the water pipe assembly 100 can be made consistent or similar to the overall structural form of the water inlet pipe and the water outlet pipe respectively arranged in the prior art, so as to facilitate the use of existing common components to reduce production costs.

[0130] Moreover, it is also convenient to assemble the external water inlet pipe 80 and the water inlet pipe (when the two are separately arranged).

[0131] Furthermore, if Figure 4 、 5 As shown in Figures 9, or 16-19, the external water inlet pipe 80 includes a water pipe body 82 and a steering head 83. The water pipe body 82 has a plurality of (i.e., greater than or equal to two) branch channels 821 extending along the length direction of the body. One end of the water pipe body 82 is connected to the water inlet outer pipe 13, wherein one of the branch channels 821 is connected to the side water inlet 131; the steering head 83 is installed at the other end of the water pipe body 82, and a steering channel 831 is provided in the steering head 83. The steering channel 831 connects the two branch channels 821 so that the water in one of the branch channels 821 is diverted and flows to the other branch channel 821 to form a rotating and extended water inlet channel 81.

[0132] In this way, by dividing the external water inlet pipe 80 into a water pipe body 82 and a diverting head 83, the water pipe body 82 is provided with a plurality of branch channels 821 extending along the length of the body, and the diverting head 83 is provided with a diverting channel 831 connecting two branch channels 821 to divert them, thereby forming a rotating and extending water inlet channel 81. Furthermore, the manufacturing difficulty can be reduced.

[0133] Furthermore, if Figure 4 、 5 As shown in Figures 9, 16-19, the water pipe body 82 includes a plurality of branch pipe bodies, each of which is provided with a branch channel 821. This can reduce the difficulty of manufacturing the water pipe body 82.

[0134] Furthermore, if Figure 4 、 5As shown in 9, or 16-19, a plurality of said branch pipe bodies are integrally arranged. Specifically, the pipe walls of adjacent branch pipe bodies are integrally arranged. This simplifies the assembly process.

[0135] It is understood that the number of the diverting channels 821 is usually greater than the number of the diverting channels 831. The diverting channels 831 and the diverting channels 821 can be designed based on factors such as the number of the diverting channels 821, the position of the water inlet interface 86, and the initial flow direction of the incoming water, as illustrated below with examples.

[0136] In actual application, it is necessary to set a water inlet interface 86 on the water pipe body 82 or the steering head 83 (the water inlet interface 86 is connected to one of the branch channels 821) for connecting to the external water supply pipe, so that the external water supply enters the water inlet channel 81 through the water inlet interface 86, and flows into the water inlet channel 14 through the water inlet channel 81, which are explained separately below.

[0137] It should be noted that, for the design in which the water inlet interface 86 is provided on the steering head 83 , the branch channel 821 communicating with the water inlet interface 86 does not need to be communicated with the steering channel 831 .

[0138] In one embodiment, if Figure 4 、 5 As shown in FIG9 , the external water inlet pipe 80 further includes a water inlet interface 86 , which is located at the lower side of the steering head 83 and is connected to the steering head 83 . The steering head 83 further includes a steering connection channel 832 connecting the water inlet interface 86 with one of the branch channels 821 .

[0139] It can be understood that since the water inlet interface 86 is provided on the steering head 83, the initial water inlet direction of the water inlet channel 81 is toward the connection base 11, so the number of branch channels 821 can be set to an odd number greater than or equal to 3, such as 3 or 5.

[0140] In one embodiment, if Figure 4 、 5 As shown in Figures 9 and 10, the branch flow channels 821 are provided with three, namely, the first flow channel 821a, the second flow channel 821b, and the third flow channel 821c connected to the side water inlet 131. The diverting connecting flow channel 832 connects the water inlet interface 86 with the first flow channel 821a. The diverting flow channel 831 is provided with a connection to connect the second flow channel 821b and the third flow channel 821c. The other end of the first flow channel 821a is connected to the other end of the second flow channel 821b. Accordingly, the water pipe body 82 includes three branch pipe bodies, each of which is provided with a branch flow channel 821. Optionally, the arrangement can be "two branch pipe bodies on top and one branch pipe body on the bottom" or "one branch pipe body on top and two branch pipe bodies on the bottom."

[0141] It can be understood that if there are five branch channels 821 , then one more turning channel 831 is required.

[0142] Further, if Figure 4 、 5 As shown in Figures 9 and 9, the water inlet outer pipe 13 is provided with a water inlet convex portion 137, and the water pipe body 82 is connected to the water inlet convex portion 137. The water inlet convex portion 137 has a water inlet channel 1371 connecting the side water inlet 131 and the third flow channel 821c, and a transfer channel 1372 connecting the other end of the first flow channel 821a and the other end of the second flow channel 821b.

[0143] In this way, the water inlet interface 86 , the first flow channel 821 a , the diverting flow channel 1372 , the second flow channel 821 b , the turning flow channel 831 and the third flow channel 821 c form a rotating and extending water inlet flow channel 81 .

[0144] Optionally, one end of the water pipe body 82 may be inserted into the water inlet protrusion 137 to improve connection reliability.

[0145] Optionally, the water pipe 10 body and the water inlet protrusion 137 may be connected by heat-fusion welding.

[0146] In another embodiment, see Figure 4 、 5 and 9 , the water inlet interface 86 can be located at the lower side of the water pipe body 82 and connected to the water pipe body 82 , and the water inlet interface 86 is communicated with one of the branch channels 821 .

[0147] It is understood that the diverter channel 821 communicating with the water inlet interface 86 can extend toward the connection base 11 so that the initial water inflow direction of the water inlet channel 81 is toward the connection base 11. In this case, the number of diverter channels 821 can be set to an odd number greater than or equal to 3, such as 3 or 5. The diverter channel 821 communicating with the water inlet interface 86 can also extend toward the direction of the steering head 83 so that the initial water inflow direction of the water inlet channel 81 is toward the steering head 83. In this case, the number of diverter channels 821 can be set to an even number greater than or equal to 2, such as 2 or 4, and the number of the diverter channels 831 is one less than the number of the diverter channels 821.

[0148] Such as, such as Figure 16-19 As shown, two branch channels 821 may be provided, and one diverting channel 831 may be provided to connect the two branch channels 821 , with one of the two branch channels being connected to the water inlet joint and the other being connected to the side water inlet 131 .

[0149] It should be noted that, for the above embodiments, especially when the number of the diversion channels 821 and diversion pipes is small, such as 2 or 3, the water pipe body 82 and the water inlet outer pipe 13 can be provided integrally to reduce the assembly process.

[0150] It should be noted that, in the above embodiments, the total length of the water inlet channel 81 is greater than or equal to 100 mm and less than or equal to 300 mm, such as 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, 250 mm, 260 mm, 270 mm, 280 mm or 290 mm.

[0151] It can be understood that from the water resistance calculation formula R=ρL / S, and the leakage current calculation formula I=U / R in case of leakage, where ρ is 1250Ωm and U is usually 220V, it can be seen that when the total length of the water inlet channel 81 is smaller, in order to make the leakage current meet the national standard, the inner diameter or equivalent inner diameter of the water inlet channel 81 is also smaller, which is not conducive to increasing the water flow rate; when the total length of the water inlet channel 81 is longer, then on the premise of making the leakage current meet the national standard, the diameter or equivalent diameter of the water inlet channel 81 can be increased to increase the water flow rate; therefore, it is necessary to limit the total length of the water inlet channel 81 to an appropriate range, such as making the total length of the water inlet channel 81 greater than or equal to 120 mm and less than or equal to 250 mm.

[0152] Furthermore, the inner diameter or equivalent inner diameter of the water inlet channel 81 can be greater than or equal to 3.5 mm and less than or equal to 8 mm. This not only reduces the leakage current to a range of 1.69-8.84 mA to meet national standards, but also allows the water inlet channel 81 to have a larger water flow rate.

[0153] It should be noted that, for the above embodiments, the positions of the water outlet joint and the water inlet joint can be made consistent with the positions of the water inlet pipe and the water outlet pipe respectively set in the prior art, so that the existing electric shock wall cover can be used, thereby saving the cost of opening a new electric shock wall cover mold and reducing production costs.

[0154] Of course, in other embodiments, the external water inlet pipe 80 may be arranged in other ways, such as bending or folding the external water inlet pipe 80 to meander around the water inlet channel 81 connected to the peripheral side of the water pipe 10; and so on.

[0155] It can be understood that, compared with the water pipe assembly 100 in the above embodiment, in a further embodiment of the present invention, the problem of water flow monitoring needs to be solved.

[0156] Furthermore, if Figure 4 、 5As shown in Figures 8, 9, and 12, the water pipe assembly 100 further includes a flow sensor 90, which includes a magnetic rotor 91 disposed in the water inlet channel 81 and a Hall element 92 disposed outside the external water inlet pipe 80. Specifically, the Hall element 92 is located on one side of the rotation axis of the magnetic rotor 91.

[0157] Specifically, the magnetic rotor 91 is made of a magnetic material, such as a magnet, and has magnetic properties. When water flows within the water inlet channel 81, it drives the magnetic rotor 91 to rotate. The change in magnetic poles during rotation is sensed by the Hall effect element 92, which sends a feedback signal to the control unit of the water heater 1000. This allows the water flow within the water inlet channel 81 to be monitored, enabling the control unit to implement functions such as water consumption statistics and water outage power-off. Furthermore, the user can be prompted to clean the unit regularly.

[0158] In specific applications, the flow sensor 90 can be set on the water pipe body 82. In this case, the magnetic rotor 91 can be set in one of the branch channels 821, and the Hall element 92 can be set outside the water pipe body 82; the flow sensor 90 can also be set on the steering head 83. In this case, the magnetic rotor 91 can be set in the steering channel 831 or the steering connecting channel 832, and the Hall element 92 can be set outside the steering head 83.

[0159] Specifically, such as Figure 4 、 5 As shown in , 8 , 9 and 12 , the magnetic rotor 91 is arranged in the steering channel 831 , and the Hall element 92 is arranged outside the steering head 83 .

[0160] Further, if Figure 4 、 5 As shown in Figures 8, 9, and 12, the diverting connecting flow channel 832 includes a first flow segment 8321 extending in the same direction as the length of the water pipe body 82, and a second flow segment 8322 extending in the same direction as the centerline of the water inlet interface 86. The first flow segment 8321 intersects and communicates with the second flow segment 8322. The first flow segment 8321 communicates with the branch flow channel 821, and the second flow segment 8322 communicates with the water inlet interface 86. In this way, water in the water inlet interface 86 can be diverted through the second flow segment 8322 and the first flow segment 8321 and then delivered into the branch flow channel 821.

[0161] Further, if Figure 4 、 5 As shown in Figures 8, 9 and 12, the magnetic rotor 91 is arranged in the second flow section 8322.

[0162] Further, if Figure 4 、 5As shown in Figures 8, 9, and 12, the external water inlet pipe 80 further includes a plug 84. The diverter head 83 further includes an installation opening 833 that communicates with the second flow segment 8322. The centerline of the installation opening 833 extends in the same direction as the second flow segment 8322. The magnetic rotor 91 is installed in the second flow segment 8322 through the installation opening 833. The plug 84 is sealingly connected to the installation opening 833. This makes installation of the magnetic rotor 91 simple and convenient.

[0163] Specifically, the plug 84 is provided with an external thread, and the inner wall surface of the installation opening 833 is provided with an internal thread, so that the plug 84 and the installation opening 833 are threadedly connected.

[0164] Further, if Figure 4 、 5 As shown in Figures 8, 9, and 12, a limiting step is formed in the second flow section 8322, and the plug 84 includes a stopper protrusion 841. One end of the magnetic rotor 91 is limited at the limiting step, and the stopper protrusion 841 abuts against the other end of the magnetic rotor 91. In this way, the magnetic rotor 91 can be limited in the second flow section 8322.

[0165] Further, if Figure 4 、 5 As shown in Figures 8, 9, and 12, the steering head 83 includes a steering column 834 and a connecting column 835 protruding from one side of the steering column 834. The water inlet port 86 is connected to the lower end of the steering column 834. The mounting port 833 and the second flow section 8322 are both provided on the steering column 834. The Hall element 92 is provided outside the steering column 834. The connecting column 835 is connected to the water pipe body 82. Specifically, the first flow channel 821a section and the steering flow channel 831 can both be provided on the connecting column 835, or both the first flow channel 821a section and the steering flow channel 831 can be provided partially on the connecting column 835 and partially on the steering column 834. Alternatively, the first flow channel 821a section can be provided partially on the connecting column 835 and partially on the steering column 834, while the steering flow channel 831 is provided on the connecting column 835, and so on.

[0166] In this way, the steering head 83 can be easily connected to the water pipe body 82.

[0167] Specifically, the diverting channel 831 can be configured as a U-shaped channel or a confluence groove, etc.

[0168] Further, if Figure 4 、 5 As shown in Figures 8, 9 and 12, a mounting plane 8341 is formed on one side of the steering column 834, and the Hall element 92 is mounted on the mounting plane 8341. In this way, the Hall element 92 can be easily installed and the installation reliability of the Hall element 92 can be improved.

[0169] Specifically, the mounting plane 8341 is provided on a side of the steering column 834 facing away from the connection base 11 .

[0170] Specifically, a fixing column is protruded from the surface of the steering column 834 , and the Hall element 92 is connected to the fixing column.

[0171] Optionally, two fixing columns are provided, and are respectively arranged on both sides of the steering column 834 .

[0172] Optionally, the fixing column is a screw hole column.

[0173] It should be pointed out that in other embodiments, the magnetic rotor 91 can also be arranged in the first flow section 8321, and a side inlet can be provided on the side of the steering head 83 to install the magnetic rotor 91; and the Hall element 92 can be arranged at the upper end of the steering head 83.

[0174] It should be noted that, in some embodiments, the flow sensor 90 may not be provided.

[0175] It can be understood that for the water pipe assembly 100 in the above embodiment, in further embodiments of the present invention, it is also necessary to solve the problem that the connecting water pipe 10 is easily damaged.

[0176] Furthermore, if Figure 2 、 4 As shown in Figures 5, 8, 9 and 12, the external water inlet pipe 80 also includes an auxiliary fixing foot 85, which is used to connect to the outer shell of the water heater 1000.

[0177] Specifically, the auxiliary fixing foot 85 can be provided on the water pipe body 82 or the steering head 83 .

[0178] In this way, by adding an auxiliary fixing foot 85 to the external water inlet pipe 80 and connecting it to the outer shell of the water heater 1000, the connection strength and stability of the water pipe assembly 100, the inner tank 200 and the outer shell can be increased, and the risk of the connecting water pipe 10 being twisted and the risk of cracking at the connection between the external water inlet pipe 80 and the connecting water pipe 10 can be reduced, thereby increasing the reliability of the water pipe assembly 100 and the water heater 1000.

[0179] Furthermore, if Figure 2 、 4 As shown in Figures 5, 8, 9 and 12, the external water inlet pipe 80 is arranged on one side of the connecting water pipe 10, and the auxiliary fixing foot 85 is located at the end of the external water inlet pipe 80 away from the connecting water pipe 10.

[0180] Specifically, the auxiliary fixing foot 85 can be provided at the end of the water pipe body 82 away from the water pipe 10, or can be provided on the steering head 83. Figure 2 、 4 As shown in , 5, 8, 9 and 12, the auxiliary fixing foot 85 is provided on the steering head 83.

[0181] In this way, the connection position between the auxiliary fixing leg 85 and the housing is away from the connecting water pipe 10 .

[0182] Specifically, such as Figure 2 、 4 As shown in , 5, 8, 9 and 12, the auxiliary fixing foot 85 is provided on the steering column 834 of the steering head 83.

[0183] Further, if Figure 2 、 4 As shown in Figures 5, 8, 9 and 12, the auxiliary fixing foot 85 is provided on the side of the steering column 834 away from the connecting water pipe 10. In this way, on the one hand, the connection position of the auxiliary fixing foot 85 and the housing can be further away from the connecting water pipe 10, and on the other hand, installation interference can be reduced, so as to facilitate the connection of the auxiliary fixing foot 85 and the housing.

[0184] Specifically, the auxiliary fixing foot 85 is provided at the upper end of the steering column 834 .

[0185] Specifically, the auxiliary fixing foot 85 is located above the installation plane 8341 .

[0186] Further, if Figure 2 、 4 As shown in Figures 5, 8, 9 and 12, the auxiliary fixing foot 85 is integrally provided with the steering column 834. In this way, the structure can be simplified on the one hand, and the corresponding assembly steps can be reduced on the other hand.

[0187] Furthermore, the auxiliary fixing foot 85 is provided in a plate shape. This simplifies the structure and facilitates connection with the housing. Of course, in other embodiments, the auxiliary fixing foot 85 can also be provided in a block or column shape, such as a screw hole column.

[0188] Optionally, a connecting rib is further provided between the auxiliary fixing foot 85 and the steering column 834 .

[0189] Further, if Figure 2 、 4 As shown in Figures 5, 8, 9 and 12, screw holes (not shown) are provided on the auxiliary fixing legs 85. Specifically, screws pass through the screw holes to connect the auxiliary fixing legs 85 to the housing.

[0190] In this way, the connection between the auxiliary fixing legs 85 and the housing can be made simple, convenient, and firm.

[0191] Of course, in other embodiments, other methods may be used to connect the auxiliary fixing foot 85 and the shell, such as providing the auxiliary fixing foot 85 with a snap structure for snapping with the shell, so as to connect the auxiliary fixing foot 85 and the shell through the snap structure; etc.

[0192] It can be understood that for the water pipe assembly 100 in the above embodiment, in further embodiments of the present invention, it is also necessary to consider the problem of connecting the water pipe 10 and the inner tank 200.

[0193] It can be understood that in actual application, a water pipe joint 210 is usually provided on the inner tank 200 at the water outlet, and the connecting water pipe 10 extends into the inner tank 200 through the water pipe joint 210 and the water outlet, and the connecting water pipe 10 will be connected to the water pipe joint 210 to fix the connecting water pipe 10 to the inner tank 200. The following will further explain the connection problem between the water pipe assembly 100 and the inner tank 200 based on the water pipe joint 210.

[0194] Furthermore, if Figure 2-7 As shown in Figures 9 and 11, the water pipe assembly 100 also includes an adapter 60, which is arranged outside the connecting water pipe 10. The adapter 60 includes a first adapter section 61 that is sealed and connected to the connecting water pipe 10, and a second adapter section 62 connected to one end of the first adapter section 61, and the second adapter section 62 is used to be sealed and connected to the water pipe joint 210.

[0195] Specifically, the first transition section 61 is sealedly connected to the water inlet outer pipe 13 (this part is explained by taking the connecting water pipe 10 including the connecting base 11, the water outlet inner pipe 12 and the water inlet outer pipe 13 as an example).

[0196] Specifically, by sealingly connecting the first transition section 61 to the outside of the connecting water pipe 10, the water in the inner tank 200 can be prevented from leaking from the connection between the first transition section 61 and the connecting water pipe 10; by sealingly connecting the second transition section 62 to the water pipe joint 210, the water in the inner tank 200 can be prevented from leaking from the connection between the second transition section 62 and the water pipe joint 210, thereby preventing leakage from within the inner tank 200.

[0197] In this way, by adding the adapter 60 to connect the water pipe connector 210 of the inner tank 200 and the connecting water pipe 10, the difficulty of connecting the two can be reduced, which is conducive to improving the connection sealing.

[0198] It should be noted that, for the solution in which “the water inlet outer pipe 13 includes a mounting section 133 and a water delivery section 134 ”, the first transition section 61 is sealedly connected to the mounting section 133 .

[0199] Furthermore, if Figure 2-7As shown in , 9 and 11 , the inner diameter of the second transition section 62 is larger than the inner diameter of the first transition section 61 , and the inner surface of the second transition section 62 is provided with an internal thread for threaded connection with the water pipe connector 210 .

[0200] Specifically, the outer peripheral surface of the water pipe joint 210 is provided with an external thread. During assembly, the second adapter section 62 can be threadedly connected to the water pipe joint 210 by rotating the adapter 60, so that the adapter 60 is fixed on the inner tank 200.

[0201] In this way, by providing an internal thread on the inner surface of the second adapter section 62 so that it is threadedly connected to the water pipe connector 210, not only can the connection between the adapter 60 and the water pipe connector 210 become simple, convenient, and secure, but it can also help improve the connection sealing.

[0202] It should be noted that in actual applications, based on process requirements, the interior of the inner liner 200 is generally enameled, and the enameling treatment requires high-temperature curing, reaching temperatures as high as 800°C or above. Due to the fluidity of the enamel inside the inner liner 200, the inner wall surface of the water pipe connector 210 may become uneven, which is not conducive to the radial sealing connection between the water pipe 10 and the water pipe connector 210.

[0203] In the present invention, by providing an adapter 60 and threading the inner wall surface of the second adapter section 62 of the adapter 60 to the outer peripheral surface of the water pipe joint 210, the connection between the water pipe 10 and the water pipe joint 210 will not be affected by the inner wall surface of the water pipe joint 210.

[0204] Furthermore, if Figure 2-7 As shown in Figures 9 and 11 , the water pipe assembly 100 further includes a first annular seal 55 , which is used to be arranged between the end face of the first transition section 61 and the joint end face of the water pipe joint 210 .

[0205] Specifically, the first annular seal 55 is disposed outside the water inlet outer pipe 13 .

[0206] It can be understood that since the inner diameter of the second transition section 62 is larger than the inner diameter of the first transition section 61, a step surface can be formed at the connection between the first transition section 61 and the second transition section 62, that is, the end face of the first transition section 61; thereby, the end face of the first transition section 61 can be abutted against the joint end face of the water pipe joint 210, and a first annular seal 55 can be arranged between the two end faces, thereby forming an end face seal, and then a connection structure of a threaded connection plus an end face seal can be formed.

[0207] In other words, in the present invention, the inner wall surface of the second transition section 62 is threadedly connected to the outer peripheral surface of the water pipe joint 210 to achieve the fastening function, and the sealing function is achieved through end face sealing, that is, the sealing function and the fastening function are separated.

[0208] Specifically, the first annular member is a sealing gasket, such as a rubber sealing gasket.

[0209] Further, if Figure 2-7 As shown in Figures 9 and 11 , the water pipe assembly 100 further includes a second annular seal 56 , which is disposed between the inner pipe wall of the first transition section 61 and the outer pipe wall of the connecting water pipe 10 .

[0210] In this way, radial sealing can be achieved by providing the second annular seal 56 between the inner tube wall of the first transition section 61 and the outer tube wall of the connecting water pipe 10 .

[0211] Specifically, the second annular seal 56 is provided between the inner tube wall surface of the first transition section 61 and the outer tube wall surface of the water inlet outer tube 13 .

[0212] Specifically, the second annular seal 56 may be a sealing ring, such as an O-ring.

[0213] Further, if Figure 2-7 , 9 and 11, the outer tube wall of the connecting water pipe 10 is provided with an annular receiving groove 138, and the second annular seal 56 is provided in the annular receiving groove 138. Specifically, the annular receiving groove 138 is provided on the outer tube wall of the water inlet outer pipe 13.

[0214] In this way, the second annular seal 56 can be easily limited.

[0215] Further, if Figure 2-7 As shown in Figures 9 and 11, there are multiple (i.e., greater than or equal to 2) second annular seals 56 distributed at intervals in the length direction of the connecting water pipe 10, such as 2, 3 or 4.

[0216] Specifically, a plurality of the annular receiving grooves 138 (ie, greater than or equal to 2) are spaced apart in the length direction of the connecting water pipe 10 , and each of the annular receiving grooves 138 is provided with a second annular sealing member 56 .

[0217] Further, if Figure 2-7 As shown in Figures 9 and 11, the outer tube wall of the connecting water pipe 10 is convexly provided with a first connecting protrusion 139, and the outer tube wall of the first transition section 61 is convexly provided with a second connecting protrusion 611. The first transition section 61 abuts against the first connecting protrusion 139, and the second connecting protrusion 611 is connected to the first connecting protrusion 139, so that the connecting water pipe 10 is fixedly connected to the first transition section 61.

[0218] Specifically, the first connecting protrusion 139 is provided on the outer tube wall surface of the water inlet outer tube 13 .

[0219] Specifically, the first adapter section 61 is arranged between the water pipe joints 210 and the water pipe joints 210, the upper end surface of the first adapter section 61 abuts against the end surface of the water pipe joint 210, and the lower end surface of the first adapter section 61 abuts against the side surface of the first connecting protrusion 139.

[0220] Specifically, the adapter 60 is fixedly connected to the water pipe connector 210 of the inner tank 200 through the first adapter section 61 , and the connecting water pipe 10 is connected to the adapter 60 through the second adapter section 62 , so that the connecting water pipe 10 is fixedly connected to the inner tank 200 .

[0221] Moreover, by protruding a first connecting protrusion 139 on the outer tube wall of the connecting water pipe 10 and protruding a second connecting protrusion 611 on the outer tube wall of the first adapter section 61, the connection between the adapter 60 and the connecting water pipe 10 can be achieved by connecting the first connecting protrusion 139 to the second connecting protrusion 611, thereby reducing the difficulty of connection.

[0222] Further, if Figure 2-7 As shown in Figures 9 and 11, the second connecting protrusion 611 is provided at one end of the first transition section 61, and the second connecting protrusion 611 abuts against the first connecting protrusion 139. This facilitates a compact design and improves connection stability. Of course, in other embodiments, the second connecting protrusion 611 can also be provided in the middle of the first transition section 61, with a gap between the second connecting protrusion 611 and the first connecting protrusion 139.

[0223] Further, if Figure 2-7 As shown in Figures 9 and 11, the first connecting protrusion 139 is annular, and / or the first connecting protrusion 139 is annular. This simplifies the design. Of course, in other embodiments, the first connecting protrusion 139 may include multiple first protrusions distributed in an annular shape, and / or the second connecting protrusion 611 may include multiple second protrusions distributed in an annular shape.

[0224] In this embodiment, if Figure 2-7 As shown in , 9 and 11, the first connecting protrusion 139 is annular, and the first connecting protrusion 139 is annular.

[0225] Furthermore, the adapter 60 is made of a corrosion-resistant material (such as stainless steel, etc.); or, the surface of the adapter 60 is provided with a corrosion-resistant layer (such as nickel and / or chromium plating on the surface of the adapter 60 made of (Q235) steel, or nickel and / or chromium plating on the surface of the adapter 60 made of zinc alloy, etc.).

[0226] In this way, the corrosion resistance of the adapter 60 can be improved, thereby increasing the service life.

[0227] In specific applications, there are various connection forms between the first connection protrusion 139 and the second connection protrusion 611, which are described below with examples.

[0228] Furthermore, if Figure 2-7 As shown in Figures 9, 11 and 13, the water pipe assembly 100 also includes a clamping member 70, which connects the first connecting protrusion 139 and the second connecting protrusion 611, that is, the first connecting protrusion 139 and the second connecting protrusion 611 are connected through the clamping member 70.

[0229] In this way, the first connecting protrusion 139 and the second connecting protrusion 611 are connected by the clamping member 70, so that quick installation can be achieved.

[0230] Furthermore, the clamping member 70 is a clamp.

[0231] Specifically, if Figure 2-7 As shown in Figures 9, 11 and 13, the clamping component 70 includes a connecting base plate 71 and two clamping springs 72 respectively connected to the two ends of the connecting base plate 71. The clamping spring 72 is provided with a clamping hole 721 extending along the length direction of the clamping spring 72. The two clamping springs 72 are respectively provided on both sides of the connecting water pipe 10, and the first connecting protrusion 139 and the second connecting protrusion 611 are clamped in the clamping hole 721.

[0232] Specifically, the two snap-fit ​​spring pieces 72 are respectively provided on both sides of the water inlet outer pipe 13 .

[0233] Specifically, one latching hole 721 may be provided on each latching spring piece 72, in which the first connecting protrusion 139 and the second connecting protrusion 611 are both latched; or two latching holes 721 may be provided on each latching spring piece 72, in which the first connecting protrusion 139 and the second connecting protrusion 611 are respectively latched.

[0234] In this embodiment, if Figure 2-7 As shown in Figures 9, 11 and 13, each snap-fit ​​spring piece 72 is provided with a snap-fit ​​hole 721.

[0235] Specifically, the two snap-fit ​​springs 72 are respectively in contact with two sides of the connecting water pipe 10 .

[0236] During assembly, external force opens the two snap-fit ​​springs 72, so that the first connecting protrusion 139 and the second connecting protrusion 611 are snapped into the snap-fit ​​hole 721. The two snap-fit ​​springs 72 are reset under the action of their own elastic force and respectively abut against the two sides of the connecting water pipe 10, thereby mainly limiting the first connecting protrusion 139 and the second connecting protrusion 611 in the length direction (i.e., axial direction) of the connecting water pipe 10.

[0237] Furthermore, if Figure 2-7 As shown in Figures 9, 11 and 13, the snap-fit ​​spring piece 72 includes an elastic support segment 722 connected to the connecting base 71, and a snap-fit ​​segment 723 connected to the elastic support segment 722. The snap-fit ​​segment 723 is arranged in an arc shape, and the snap-fit ​​segment 723 elastically abuts against the first transition segment 61 and the outside of the connecting water pipe 10.

[0238] In this way, by configuring the clamping section 723 to be arc-shaped, the limiting effect on the first transition section 61 and the connecting water pipe 10 can be enhanced.

[0239] Furthermore, if Figure 2-7 As shown in Figures 9, 11 and 13, the clamping section 723 includes a first clamping sub-section 7231 and a second clamping sub-section 7232 respectively arranged on both sides of the clamping hole 721, and the diameter of the first clamping sub-section 7231 is larger than the diameter of the second clamping sub-section 7232, so that the first clamping sub-section 7231 is adapted to be arranged outside the first transition section 61, and the second clamping sub-section 7232 is adapted to be arranged outside the connecting water pipe 10.

[0240] Specifically, it can be understood that since the first transition section 61 is arranged outside the connecting water pipe 10, the outer diameter or equivalent outer diameter of the first transition section 61 is larger than the outer diameter of the connecting water pipe 10. Therefore, in order to improve adaptability, the diameter of the first clamping sub-section 7231 is larger than the diameter of the second clamping sub-section 7232.

[0241] like Figure 2-7 As shown in , 9, 11 and 13, the first clamping sub-segment 7231 is located above the second clamping sub-segment 7232.

[0242] Furthermore, if Figure 2-7 As shown in , 9, 11 and 13, the side edge of the second clamping sub-segment 7232 is provided with a first side pressing piece 7233, and the first side pressing piece 7233 abuts against the first connecting protrusion 139; and / or, the side edge of the first clamping sub-segment 7231 is provided on a second side pressing piece, and the second side pressing piece abuts against the second connecting protrusion 611.

[0243] In this way, on the one hand, the structural strength of the first locking sub-segment 7231 and / or the second locking sub-segment 7232 can be improved, and on the other hand, the connection stability can also be improved.

[0244] In this embodiment, a first side pressing piece 7233 is provided on a side edge of the second engaging sub-segment 7232 , and the first side pressing piece 7233 abuts against the first connecting protrusion 139 .

[0245] Furthermore, if Figure 2-7As shown in , 9, 11 and 13, the connecting water pipe 10 is provided with a first limiting portion, and the first limiting portion is used to limit the rotation of the clamping member 70; and / or, the first transition section 61 is provided with a second limiting portion, and the second limiting portion is used to limit the rotation of the clamping member 70.

[0246] In this way, the clamping member 70 can be prevented from rotating relative to the connecting water pipe 10 and the adapter 60, thereby preventing the connecting water pipe 10 and the adapter 60 from rotating relative to each other, thereby completely limiting the connecting water pipe 10 and the adapter 60.

[0247] In specific applications, there are many structural forms of the first limiting portion and / or the second limiting portion, which are described with examples below.

[0248] Furthermore, if Figure 2-7 As shown in Figures 9, 11, and 13, the first limiting portion includes two first limiting plates 13a protruding from the outer tube wall of the connecting water pipe 10. The two first limiting plates 13a are spaced apart in the circumferential direction of the connecting water pipe 10. The two first limiting plates 13a are both located between the two elastic support segments 722. One of the first limiting plates 13a abuts against one of the elastic support segments 722, and the other first limiting plate 13a abuts against the other elastic support segment 722, so as to limit the rotation of the clamping member 70. Specifically, the first limiting plates 13a are provided on the water inlet outer tube 13.

[0249] Specifically, the first limiting plate 13a is further connected to the first connecting protrusion 139 to enhance structural strength.

[0250] Of course, in other embodiments, the first limiting portion can also be a first limiting protrusion protruding from the outer tube wall of the water pipe 10, and the first limiting protrusion is arranged between the two elastic support sections 722. The two side surfaces of the first limiting protrusion are respectively (used to) abut against the two elastic support sections 722 to limit the rotation of the clamping member 70; and so on.

[0251] Similarly, the second limiting portion may include two first limiting plates 13a protruding from the outer tube wall of the first transition section 61 ; or, the second limiting portion may be a second limiting block protruding from the outer tube wall of the first transition section 61 .

[0252] Furthermore, if Figure 2-7 As shown in Figures 9, 11 and 13, the clamping elastic piece 72 further includes a guide section 724 connected to the clamping section 723, and the guide section 724 extends obliquely in a direction away from the other clamping elastic piece 72. In this way, the clamping member 70 can be easily assembled.

[0253] It can be understood that, compared to connecting the first connecting protrusion 139 and the second connecting protrusion 611 by screwing, connecting the first connecting protrusion 139 and the second connecting protrusion 611 by the above-mentioned clamping member 70 can achieve quick installation.

[0254] Further, if Figure 2-7 As shown in Figures 9, 11 and 13, the clamping member 70 further includes a plug-in piece 725 connected to the connecting base piece 71 or the clamping spring piece 72, and the plug-in piece 725 is used to connect to the leakage protection device.

[0255] Specifically, the plug-in piece 725 can be used to connect a leakage protection indicator light.

[0256] This can improve safety in use.

[0257] Specifically, the plug-in piece 725 is provided at a side edge of the engaging hole 721 close to the connecting base piece 71 , or the plug-in piece 725 is provided at a lower side edge of the connecting base piece 71 .

[0258] It should be noted that, in other embodiments, other methods may be used to connect the first connecting protrusion 139 and the second connecting protrusion 611, such as the water pipe assembly 100 may further include a fastener (such as a screw or a connecting pin, etc.), which connects the first connecting protrusion 139 and the second connecting protrusion 611; and so on.

[0259] It should be noted that, in other embodiments, the clamping member 70 may also be configured as other structural forms.

[0260] As in the second embodiment of the clip 70, Figure 22 As shown, the clamping member 70 includes a first clamping half ring 73 and a second clamping half ring 74 respectively arranged on both sides of the connecting water pipe 10, the first clamping half ring 73 has a first clamping groove, the second clamping half ring 74 has a second clamping groove, the first connecting protrusion 139 and the second connecting protrusion 611 are clamped in the first clamping groove and the second clamping groove; the first end of the first clamping half ring 73 and the first end of the second clamping half ring 74 are detachably connected or rotatably connected, and the second end of the first clamping half ring 73 and the second end of the second clamping half ring 74 are connected by a clamping structure.

[0261] Specifically, such as Figure 22 As shown, one of the second end of the first clamping half ring 73 and the second end of the second clamping half ring 74 is provided with an undercut 731, and the other is provided with a clamping hole, and the undercut 731 is clamped in the clamping hole.

[0262] Alternatively, as Figure 22As shown, the first end of the first clamping half ring 73 and the first end of the second clamping half ring 74 can be detachably connected by a locking screw structure or a clamping structure.

[0263] It should be noted that, in other embodiments, other methods may be used to connect the first adapter section 61 to the connecting water pipe 10, such as the inner surface of the first adapter section 61 may be provided with an internal thread, and the outer tube wall of the connecting water pipe 10 may be provided with an external thread, so that the first adapter section 61 is threadedly connected to the outside of the connecting water pipe 10; and so on.

[0264] It should be noted that the above solution of connecting the water pipe joint 210 on the inner tank 200 and the connecting water pipe 10 through the adapter 60 can also be applied to the connection of a single water inlet pipe or water outlet pipe and the water pipe joint 210 on the inner tank 200 in the prior art. There is no insurmountable obstacle, that is, the connecting water pipe 10 can be a separate water inlet pipe or water outlet pipe, and accordingly, the water inlet on the inner tank 200 is the water inlet or water outlet on the tank.

[0265] It should be noted that, optionally, in some of the above embodiments, the bile inner water outlet pipe 20 may include a metal outer tube 22 and a plastic inner tube 23 provided inside the metal outer tube 22 .

[0266] In another embodiment of the present invention, Figure 20 and 21 As shown, in this embodiment, the flow guide and the flow sensor 90 are not provided.

[0267] In yet another embodiment of the present invention, Figure 22 As shown, in this embodiment, the water pipe body 82 includes three branch pipes, each of which is provided with a branch channel 821, with two branch pipes on top and the remaining branch pipe on the bottom. In this embodiment, the clamping member 70 adopts a scheme including a first clamping half ring 73 and a second clamping half ring 74.

[0268] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A water pipe assembly for a water heater, characterized in that: The water pipe assembly comprises: A connecting water pipe, the connecting water pipe having a water inlet channel and a water outlet channel, a water outlet interface being provided at the lower end of the connecting water pipe, the water outlet interface being communicated with the water outlet channel; a side water inlet being communicated with the water inlet channel being provided on the connecting water pipe; and an external water inlet pipe, the external water inlet pipe having a water inlet channel that extends in a circuitous manner or in a rotating manner, the external water inlet pipe being arranged outside the connecting water pipe, the water inlet channel being in communication with the side water inlet; The external water inlet pipe is arranged on one side of the connecting water pipe; The external water inlet pipe includes a water pipe body and a steering head. The water pipe body has a plurality of branch channels extending along the length direction of the body. One end of the water pipe body is connected to the connecting water pipe, and one of the branch channels is connected to the side water inlet. The steering head is installed at the other end of the water pipe body. A steering channel is provided in the steering head. The steering channel connects the two branch channels so that water in one of the branch channels is diverted and flows to the other branch channel to form the water inlet channel. The external water inlet pipe further includes a water inlet interface, which is located at the lower side of the steering head and connected to the steering head. The steering head further includes a steering connection channel connecting the water inlet interface and one of the branch channels; The branch flow channels are provided with three, namely the first flow channel, the second flow channel, and the third flow channel connected to the side water inlet; the diverting connecting flow channel connects the water inlet interface and the first flow channel; the diverting flow channel is provided with one to connect the second flow channel and the third flow channel; the other end of the first flow channel is connected to the other end of the second flow channel; The water pipe body includes three branch pipe bodies, each of which is provided with a branch flow channel. The branch pipe bodies extend along a first horizontal direction, and the branch pipe bodies corresponding to forming the second flow channel and the third flow channel are arranged in parallel along a second horizontal direction. The branch pipe body corresponding to forming the first flow channel is located above the branch pipe body corresponding to forming the second flow channel and the third flow channel. The steering head has a first side end and a second side end along a first horizontal direction, and the first flow channel, the second flow channel, and the third flow channel are all formed at the first side end of the steering head; A magnetic rotor is provided in the water inlet flow channel, and a Hall element is provided at the second side end of the steering head; Along the first horizontal direction, the second flow channel, the third flow channel, the magnetic rotor and the Hall element are at least partially arranged opposite to each other.

2. The water pipe assembly according to claim 1, wherein The water inlet interface is located at the lower side of the water pipe body and is connected to the water pipe body. The water inlet interface is communicated with one of the branch channels.

3. The water pipe assembly according to claim 1, wherein The connecting water pipe is provided with a water inlet convex portion on the outside, and the water pipe body is connected to the water inlet convex portion. The water inlet convex portion has a water inlet channel connecting the side water inlet and the third flow channel, and a diverter channel connecting the other end of the first flow channel and the other end of the second flow channel.

4. The water pipe assembly according to claim 1, wherein: The water pipe main body and the connecting water pipe are integrally arranged.

5. The water pipe assembly according to any one of claims 1 to 4, characterized in that: The outer diameter or equivalent outer diameter of the connecting water pipe is greater than or equal to 22 mm and less than or equal to 50 mm.

6. The water pipe assembly according to any one of claims 1 to 4, characterized in that: The connecting water pipe comprises: A connecting base, wherein the connecting base has a water outlet through-hole, the water outlet interface is provided on the lower side of the connecting base, and the water outlet interface is communicated with the water outlet through-hole; an inner water outlet pipe, one end of which is integrally provided on the connection base, and the inner water outlet pipe is connected to the water outlet through hole; and an outer water inlet pipe, one end of which is integrally provided on the connecting base, the outer water inlet pipe being located outside the inner water outlet pipe, a water inlet channel being formed between the outer water inlet pipe, the inner water outlet pipe and the connecting base, the side water inlet being provided on the outer water inlet pipe, and the external water inlet pipe being provided outside the outer water inlet pipe; The outer water inlet pipe extends into the water pipe joint of the inner tank; The water pipe assembly further includes an adapter, which is disposed outside the water inlet outer pipe. The adapter includes a first adapter section sealedly connected to the water inlet outer pipe, and a second adapter section connected to one end of the first adapter section. The inner surface of the second adapter section is provided with an internal thread for threaded connection with the water pipe joint. The outer tube wall surface of the water inlet outer tube is convexly provided with a first connecting protrusion, the outer tube wall surface of the first transition section is convexly provided with a second connecting protrusion, the first transition section abuts against the first connecting protrusion, and the second connecting protrusion is connected to the first connecting protrusion, so that the water inlet outer tube is fixed to the first transition section; The portion of the water inlet outer pipe located above the first connecting protrusion is located inside the adapter and inside the water pipe joint.

7. A water heater, characterized in that: The water heater comprises: An inner container having a water inlet and outlet; and The water pipe assembly according to any one of claims 1 to 6, wherein the water pipe assembly is arranged at the water inlet and outlet.

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