Electric heating faucet

Abstract

The utility model relates to the technical field of electric heating faucets, and discloses an electric heating faucet. The electric heating faucet comprises a water outlet pipe assembly, one end of the water outlet pipe assembly is provided with a water inlet, the other end of the water outlet pipe assembly is provided with a water outlet, the end, close to the water inlet, of the water outlet pipe assembly is provided with a plurality of water channels extending in the length direction of the water outlet pipe assembly, and the water channels are arranged at intervals in the radial direction of the water outlet pipe assembly; one end of the water inlet runner is communicated with the water inlet, and the other end of the water inlet runner is communicated with the water outlet. According to the electric heating faucet, the flowing path of inflow water of the water outlet pipe assembly is prolonged, the resistance of water entering the water outlet pipe assembly is increased, then the leakage current generated when water flows out of the water outlet pipe assembly is reduced, the electric leakage hazard of the electric heating faucet is greatly reduced, and the function of integrating an electricity guard wall on the short electric heating faucet is achieved; and the use safety of the electric heating faucet is improved.

Description

Technical Field

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

[0002] Electric water faucets have been widely used in daily life to replace ordinary faucets in the home, achieving rapid heating of water at the end. They can effectively solve the problems of long waiting time for hot water from multiple water supply channels in the home and low water temperature from multiple water supply channels at the same time.

[0003] Electric water faucets typically use a 220V power supply, and their heating element typically has a power of around 3000W. When the faucet is turned on, the heating element energizes the water in the inner tank, heating it to hot water. Existing electric water faucets are prone to safety issues during use, potentially causing personal injury to users. Utility Model Content

[0004] The technical problem solved by the utility model is to provide an electric water faucet, which can effectively solve the problem of low safety of existing electric water faucets and improve the safety of the electric water faucet.

[0005] The above technical problems are solved by the following technical solutions:

[0006] An electric water faucet includes a water outlet pipe assembly, wherein a water inlet is provided at one end of the water outlet pipe assembly, and a water outlet is provided at the other end. A plurality of water channels extending along the length direction of the water outlet pipe assembly are provided at one end of the water outlet pipe assembly close to the water inlet. The plurality of water channels are arranged at intervals along the radial direction of the water outlet pipe assembly, and adjacent water channels are connected to form a water inlet flow channel that is connected in sequence in a circuitous manner. One end of the water inlet flow channel is connected to the water inlet, and the other end is connected to the water outlet.

[0007] Compared with the background technology, the electric water faucet of the present invention has the following beneficial effects:

[0008] The electric water faucet provided by the present utility model is configured with a plurality of water channels extending along the length direction of the water outlet pipe assembly at one end of the water outlet pipe assembly near the water inlet. The plurality of water channels are arranged at intervals along the radial direction of the water outlet pipe assembly, and adjacent water channels are connected to form water inlet channels that are connected in a circuitous manner in sequence, thereby extending the flow path of water entering the water outlet pipe assembly, increasing the resistance of water entering the water outlet pipe assembly, and reducing the leakage current of the water outlet pipe assembly when discharging water, greatly reducing the leakage hazard of the electric water faucet, realizing the integration of an anti-electrical wall function on a shorter electric water faucet, and improving the safety of the electric water faucet.

[0009] In one embodiment, the water outlet pipe assembly includes a water outlet pipe, the water channel is provided at one end of the water outlet pipe close to the water inlet, the water channel includes a first water channel, a second water channel and a third water channel, one end of the first water channel is connected to the water inlet, the other end of the first water channel is connected to one end of the second water channel, the other end of the second water channel is connected to one end of the third water channel, and the other end of the third water channel is connected to the water outlet.

[0010] In one embodiment, the other end of the first water channel is connected to one end of the second water channel through a first connecting channel, and the other end of the second water channel is connected to one end of the third water channel through a second connecting channel.

[0011] In one embodiment, the first communication channel and the second communication channel both extend in a direction perpendicular to the water channel.

[0012] In one embodiment, the first communication channel is provided through the side wall of the water outlet pipe, and a first waterproof plug is provided at the through end of the first communication channel.

[0013] In one embodiment, a connecting groove connecting the second water channel and the third water channel is provided at the end of the water outlet pipe close to the water inlet, and the end of the water outlet pipe close to the water inlet is sealed by a second waterproof plug, and the connecting groove abuts against the second waterproof plug to form the second connecting channel.

[0014] In one embodiment, the electric water faucet further includes an inner tank assembly, and the inner tank assembly includes:

[0015] An inner liner body, wherein one end of the inner liner body is provided with a main water inlet, and the other end is provided with a main water outlet, a heating chamber is provided in the inner liner body, the main water inlet and the main water outlet are both connected to the heating chamber; the main water outlet is connected to the water inlet;

[0016] A heating element is disposed in the heating chamber, and a second water outlet chamber is formed between an end of the heating element close to the main water outlet and the main water outlet;

[0017] A flow guide is provided in the heating chamber, one end of the flow guide is connected to the main water inlet, the other end extends to the second water outlet chamber and is provided with a water outlet hole; the water outlet hole is spaced apart from the main water outlet, and the main water outlet is connected to the water inlet channel.

[0018] In one embodiment, a radial spacing and an axial spacing are left between the water outlet hole and the main water outlet.

[0019] In one embodiment, the radial spacing is H, then 1 / 6D<H≤1 / 4D, where D is the inner diameter of the liner body;

[0020] And / or, the axial spacing is h, then 10mm≤h≤20mm.

[0021] In one embodiment, the flow guide is integrally formed with the inner wall of the liner body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. 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 contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 It is a structural diagram of the electric water faucet provided by a specific embodiment of the utility model;

[0024] Figure 2 This is a cross-sectional view of the electric water faucet provided by the specific embodiment of the utility model. Figure 1 ;

[0025] Figure 3 This is a cross-sectional view of the electric water faucet provided by the specific embodiment of the utility model. Figure 2 ;

[0026] Figure 4 It is a partial cross-sectional view of the inner liner assembly provided by a specific embodiment of the present utility model;

[0027] Figure 5 This is a cross-sectional view of the inner container body provided by a specific embodiment of the present utility model;

[0028] Figure 6 This is a front view of the inner liner assembly provided by a specific embodiment of the utility model;

[0029] Figure 7 This is an exploded schematic diagram of a water outlet pipe assembly provided in a specific embodiment of the present utility model;

[0030] Figure 8 This is a schematic diagram of the water flow direction in the water outlet pipe assembly provided by a specific embodiment of the present utility model;

[0031] Figure 9 This is a cross-sectional view of the water outlet pipe assembly provided by the specific embodiment of the utility model Figure 1 ;

[0032] Figure 10This is a cross-sectional view of the water outlet pipe assembly provided by the specific embodiment of the utility model Figure 2 ;

[0033] Figure 11 This is a cross-sectional view of the water outlet pipe assembly provided by the specific embodiment of the utility model Figure 3 ;

[0034] Figure 12 This is a front view of the water outlet pipe assembly provided by a specific embodiment of the utility model;

[0035] Figure 13 It is a side view of the water outlet pipe assembly provided by a specific embodiment of the present utility model.

[0036] Description of labels:

[0037] 1. Water outlet pipe assembly; 11. Water outlet pipe; 111. Water inlet; 112. Water outlet; 113. First water channel; 114. Second water channel; 115. Third water channel; 116. First connecting channel; 117. Connecting groove; 118. First water outlet cavity; 119. Cavity; 12. First waterproof plug; 13. Second waterproof plug; 14. Third waterproof plug; 15. Connecting lug; 151. Connecting hole; 16. Fourth waterproof plug; 17. Water inlet pipe;

[0038] 2. Inner liner assembly; 21. Inner liner body; 211. Main water inlet; 212. Electrical installation cavity; 213. Heating cavity; 214. Second water outlet cavity; 215. First connecting hole; 216. Second connecting hole; 217. Third connecting hole; 22. Flow guide; 221. Flow guide channel; 222. Water outlet; 23. Inner liner connector; 231. External water inlet; 24. Top cover; 241. Main water outlet; 25. Sealing element;

[0039] 3. Heating element;

[0040] 4. Faucet switch;

[0041] 5. Housing; 51. First housing; 52. Second housing; 521. Bottom housing; 522. Top housing;

[0042] 6. Waterproof sealing ring. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] In the description of this application, it should be understood that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0046] In the description of this application, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0047] like Figure 1-Figure 3 As shown, this embodiment provides an electric water faucet, including an inner tank assembly 2 and a water outlet pipe assembly 1. The inner tank assembly 2 is used to heat the cold water entering it to heat the cold water to the temperature required by the user. The inner tank assembly 2 includes an inner tank body 21 and a heating element 3. One end of the inner tank body 21 is provided with a main water inlet 211, and the other end is provided with a main water outlet 241. A heating chamber 213 is provided in the inner tank body 21. The main water inlet 211 and the main water outlet 241 are both connected to the heating chamber 213; the main water outlet 241 is connected to the water outlet pipe assembly 1. Specifically, a switch valve is also provided in the inner tank body 21, and the main water inlet 211 is connected to the heating chamber 213 through the switch valve. The heating element 3 is arranged in the heating chamber 213. Cold water enters the inner tank assembly 2 from the main water inlet 211, enters the heating chamber 213 through the switch valve, is heated to hot water of the user's required temperature by the heating element 3 in the heating chamber 213, and then enters the water outlet pipe assembly 1 through the main water outlet 241. One end of the water outlet pipe assembly 1 is provided with a water inlet 111, and the other end is provided with a water outlet 112. The main water outlet 241 is connected to the water inlet 111 so that the heated water in the inner tank body 21 enters the water outlet pipe assembly 1 through the main water outlet 241 and the water inlet 111, and then flows out through the water outlet 112.

[0048] Specifically, if Figure 4-Figure 7As shown, the inner container body 21 is also provided with an electrical installation cavity 212, in which a start switch is installed. The start switch and the heating element 3 are electrically connected via wires. The sidewall of the inner container body 21 is provided with a first connecting hole 215, a second connecting hole 216, and a third connecting hole 217. The on-off valve is a three-way on-off valve, which controls the communication between the first connecting hole 215, the second connecting hole 216, and the third connecting hole 217. The first connecting hole 215 is connected to the main water inlet 211, the second connecting hole 216 is connected to the heating chamber 213, and the third connecting hole 217 is connected to the start-up channel of the electrical installation cavity 212. When the on-off valve is closed, the first connecting hole 215 is disconnected from the second connecting hole 216 and the third connecting hole 217, preventing cold water from entering the heating chamber 213. When the cold water mode is on, the three-way switch valve controls the connection between the first connecting hole 215 and the second connecting hole 216. Cold water flows from the main water inlet 211 through the first connecting hole 215 and the second connecting hole 216 into the heating chamber 213, and then flows out from the main water outlet 241, providing cold water to the user. When the hot water mode is on, the three-way switch valve controls the connection between the first connecting hole 215 and the second connecting hole 216 and the third connecting hole 217. Most of the cold water entering the first connecting hole 215 from the main water inlet 211 flows into the heating chamber 213 through the second connecting hole 216, while a small amount of cold water flows into the electrical installation chamber 212 through the start channel through the third connecting hole 217, triggering the start switch. The start switch controls the heater 3 to start heating, so that the cold water entering the heating chamber 213 is heated by the heater 3 and then flows out from the main water outlet 241, providing hot water of the required temperature to the user.

[0049] The specific structure and control principle of the switch valve and the start switch are not the improvements of this embodiment. They can be designed with reference to the existing technology and will not be described in detail here.

[0050] In the electric water faucet in the prior art, the heating element 3 is usually a heating tube, which is made of stainless steel or copper. There is still residual heat in the heating tube after the heating stops, and the volume of the heating chamber 213 of the electric water faucet is small. The residual heat of the heating tube will quickly heat the water in the heating chamber 213 to a higher temperature. If it is used again in a short time, this part of the higher temperature water will be discharged first. This phenomenon is called water stop temperature rise. When the normal water temperature is about 40°C, the high-temperature hot water temperature generated by the water stop temperature rise will reach 50°C~60°C, which poses a risk of scalding.

[0051] Some existing electric water faucets have a short length of the water outlet pipe assembly 1 and a short water path between the main water outlet 241 and the water outlet 112. When the electric water faucet leaks, the leakage current of the water outlet pipe assembly 1 may be large, increasing the leakage hazard.

[0052] Therefore, conventional electric water faucets present scalding risks and electrical leakage hazards, resulting in low safety. To improve the safety of electric water faucets, the electric water faucet provided in this embodiment has improvements to the structures of both the inner tank assembly 2 and the outlet pipe assembly 1. This addresses the issue of temperature rise in the inner tank assembly 2 when water is not flowing, reducing the scalding risk; and addresses the issue of electrical leakage in the outlet pipe assembly 1, thereby improving the safety of the electric water faucet.

[0053] In one embodiment, continue to refer to Figure 4 and Figure 5 The inner tank assembly 2 also includes a flow guide 22. A second water outlet chamber 214 is formed between one end of the heating element 3 near the main water outlet 241 and the main water outlet 241. The flow guide 22 is arranged in the heating chamber 213. One end of the flow guide 22 is connected to the main water inlet 211, and the other end extends to the second water outlet chamber 214. A water outlet hole 222 is opened. The water outlet hole 222 is spaced apart from the main water outlet 241, and the main water outlet 241 is connected to the water inlet 111. That is, when cold water enters the heating chamber 213, it is guided into the second water outlet chamber 214 by the flow guide 22. The second water outlet chamber 214 is arranged near the main water outlet 241. When the heating element 3 stops heating, high-temperature hot water is generated due to the residual heat of the heating element 3. When it is restarted, the cold water enters the flow guide 22 from the main water inlet 211 through the switch valve, and is guided by the flow guide 22 to flow into the second water outlet chamber 214. Because the heating power of the heating element 3 is unstable and the heating speed is slow when the heating element 3 is first started, the water outlet 222 is spaced apart from the main water outlet 241. At this time, the cold water flowing from the guide member 22 into the second water outlet chamber 214 can disperse the high-temperature hot water in the second water outlet chamber 214, quickly cooling the high-temperature hot water and lowering the temperature of the hot water in the second water outlet chamber 214. As a result, the cooled hot water is first discharged from the main water outlet 241, thereby reducing the risk of scalding. It is understandable that due to the small volume of the heating chamber 213, after the heating element 3 is stably heated, the cold water entering the second water outlet chamber 214 through the guide member 22 can also be quickly heated without affecting the normal water outlet temperature.

[0054] In one embodiment, radial and axial spacing is provided between the water outlet hole 222 and the main water outlet 241. This radial and axial spacing allows cold water to flow through the guide member 22 into the second water outlet chamber 214, where it can fully mix with the remaining high-temperature hot water in the second water outlet chamber 214 before flowing out of the main water outlet 241. This prevents the end of the guide member 22 communicating with the second water outlet chamber 214 from being positioned directly opposite the main water outlet 241, causing the cold water to flow out directly through the main water outlet 241.

[0055] In one embodiment, the radial spacing is H, then 1 / 6D<H≤1 / 4D, where D is the inner diameter of the inner tank body 21. The radial spacing is specifically designed according to the inner diameter of the inner tank body 21. The radial spacing should not be too large. When the radial spacing is too large, the cold water entering the second water outlet chamber 214 through the guide member 22 has not yet had time to mix with the residual high-temperature hot water near the main water outlet 241, and the residual high-temperature hot water will flow out from the main water outlet 241, which is still likely to cause burns to the user. The radial spacing should not be too small either. When the radial spacing is too small, after the heating power of the heating element 3 stabilizes, the cold water entering the second water outlet chamber 214 through the guide member 22 is too close to the main water outlet 241, and it flows out from the main water outlet 241 before it has time to be heated by the heating element 3, affecting the outlet water temperature. It should be noted that the range of this radial spacing is set when the inner diameter of the inner tank body 21 is small, and is intended to solve the problem of temperature rise when water is not flowing and the volume of the heating chamber 213 is small.

[0056] In one embodiment, the axial spacing is h, then 10mm≤h≤20mm. Similarly, in the second water outlet chamber 214, the axial spacing between the end of the guide member 22 close to the second water outlet chamber 214 and the main water outlet 241 should not be too large or too small. When the axial spacing is too large, the residual high-temperature hot water will not be able to fully mix with the cold water, causing the risk of scalding the user; if the axial spacing is too small, it will also affect the water outlet temperature. The axial spacing between the guide member 22 and the main water outlet 241 is less than or equal to the axial spacing between the heating member 3 and the main water outlet 241 to ensure that the cold water that has just entered the heating chamber 213 first enters the second water outlet chamber 214 and mixes with the residual high-temperature hot water close to the main water outlet 241, so as to reduce the temperature of the residual high-temperature hot water close to the main water outlet 241 and reduce the risk of scalding.

[0057] Since the volume of the heating chamber 213 is relatively small, only one flow guide 22 is provided, which can solve the problem of scalding caused by the temperature rise when the water supply is stopped. Of course, for a heating chamber 213 with a larger volume, multiple flow guides 22 can also be provided at intervals along the circumference of the heating chamber 213 to achieve the ability to quickly cool down the high-temperature hot water remaining in the second water outlet chamber 214. For example, two flow guides 22 are provided, and the interval between the two flow guides 22 is 180°; or four flow guides 22 are provided, and the interval between adjacent guides 22 among the four guides 22 is 90°. When multiple flow guides 22 are provided, a connecting cavity is provided at one end of the multiple flow guides 22 away from the main water outlet 241, and the connecting cavity is used to connect the main water inlet 211 and the multiple flow guides 22.

[0058] In one embodiment, the flow guide 22 is integrally formed with the inner wall of the liner body 21. This arrangement does not require assembly, simplifies the assembly steps, and does not require a sealing structure, thus reducing costs.

[0059] Exemplarily, an enclosing plate is provided on the inner wall of the inner tank body 21. A diversion channel 221 is formed by enclosing between the enclosing plate and the inner wall of the inner tank body 21. The enclosing plate is manufactured by a mold to form a structure integral with the inner tank body 21. Alternatively, a diversion groove is directly opened on the inner wall of the inner tank body 21, and cold water is guided to the second water outlet cavity 214 through the diversion groove.

[0060] In one embodiment, the inner tank assembly 2 further includes a top cover 24 and an inner tank connector 23. Both ends of the inner tank body 21 are provided as openings. One end close to the electrical installation cavity 212 is connected to the inner tank connector 23. An external water inlet 231 is provided at one end of the inner tank connector 23. The external water inlet 231 is connected to a purified water pipeline or a tap water pipeline. An external water outlet is provided at the other end of the inner tank connector 23, and the external water outlet is connected to the main water inlet 211. The top cover 24 is arranged at one end of the inner tank body 21 close to the heating cavity 213, and a main water outlet 241 is arranged on the top cover 24. By providing the top cover 24, it is convenient for the installation of the heating element 3. At the same time, the main water outlet 241 is arranged on the axis of the heating cavity 213 to ensure the smoothness of water outlet.

[0061] In one embodiment, a seal 25 is provided between the top cover 24 and the inner wall of the inner tank body 21. The seal 25 ensures the sealing performance of the heating cavity 213 and can prevent the inner tank assembly 2 from leaking water.

[0062] Specifically, the seal 25 is arranged in a "U" shape. An avoidance hole is correspondingly provided at the bottom of the "U"-shaped seal 25 for the main water outlet 241. The outer diameter of one end of the top cover 24 close to the heating cavity 213 is smaller than the outer diameter of the end far from the heating cavity 213. The end of the top cover 24 far from the heating cavity 213 is fitted with the inner wall of the inner tank body 21 and fixed by fastening screws. The circumference of the "U"-shaped seal 25 is arranged in a seal groove formed between one end of the top cover 24 close to the heating cavity 213 and the inner wall of the inner tank body 21, and the circumference of the "U"-shaped seal 25 is in interference fit with the seal groove to ensure the sealing performance of the heating cavity 213.

[0063] In one embodiment, as Figure 8 and Figure 9 shown, multiple water channels extending along the length direction of the water outlet pipe assembly 1 are provided at one end of the water outlet pipe assembly 1 close to the water inlet 111. The multiple water channels are arranged at intervals along the radial direction of the water outlet pipe assembly 1, and adjacent water channels are connected, so that the multiple water channels form an inlet water flow path that is sequentially and circuitously connected. One end of the inlet water flow path is connected to the water inlet 111, and the other end is connected to the water outlet 112. This inlet water flow path extends the flow path of the water entering the water outlet pipe assembly 1, increases the resistance of the water entering the interior of the water outlet pipe assembly 1, and thus reduces the leakage current when the water outlet pipe assembly 1 discharges water, greatly reducing the leakage hazard of the electric water faucet, realizing the integration of the anti-electricity wall function on a relatively short electric water faucet, and improving the use safety of the electric water faucet.

[0064] In one embodiment, if Figures 8-12 As shown, the water outlet pipe assembly 1 includes a water outlet pipe 11, and a water channel is provided at one end of the water outlet pipe 11 near the water inlet 111. The water channel includes a first water channel 113, a second water channel 114 and a third water channel 115. One end of the first water channel 113 is connected to the water inlet 111, the other end of the first water channel 113 is connected to one end of the second water channel 114, the other end of the second water channel 114 is connected to one end of the third water channel 115, and the other end of the third water channel 115 is connected to the water outlet 112. A solid structure of a set length is provided at one end of the water outlet pipe 11 close to the water inlet 111, and a first water channel 113, a second water channel 114 and a third water channel 115, which are all connected to one end of the water outlet pipe 11, are processed on the solid structure of the set length. The water inlet 111 is provided in the circumference of the water outlet pipe 11, and the side of the first water channel 113 close to the through end is connected to the water inlet 111, the first water channel 113 is connected to the end of the second water channel 114 away from the water inlet 111, the through end of the second water channel 114 is connected to the through end of the third water channel 115, and the end of the third water channel 115 away from its through end is connected to the water outlet 112. In this way, the water heated by the inner tank body 21 enters the first water channel 113 through the main water outlet 241 and the water inlet 111, then flows out through the second water channel 114 and the third water channel 115 through the water outlet 112. This arrangement extends the water inlet path of the water outlet pipe assembly 1, increases the water resistance inside the water outlet pipe assembly 1, reduces the leakage current, and thus greatly reduces the leakage hazard of the electric water faucet.

[0065] In one embodiment, the other end of the first water channel 113 is connected to one end of the second water channel 114 via a first connecting channel 116, and the other end of the second water channel 114 is connected to one end of the third water channel 115 via a second connecting channel. By providing the first and second connecting channels in the physical structure to connect the water inlet channels, machining can be completed using drilling equipment used to drill the first, second, and third water channels 113, 114, 115, reducing processing costs. Alternatively, the outlet pipe 11 can be injection molded using an injection molding process, reducing both processing difficulty and cost.

[0066] Of course, in other embodiments, both ends of the first water channel 113, the second water channel 114 and the third water channel 115 can also be processed into through ends, and the ends of the first water channel 113 and the second water channel 114 away from the water inlet 111 are connected by a first connecting pipe, and the ends of the second water channel 114 and the third water channel 115 close to the water inlet 111 are connected by a second connecting pipe.

[0067] In one embodiment, the first communication channel 116 and the second communication channel both extend in a direction perpendicular to the water channel. This arrangement facilitates the processing of the first communication channel 116 and the second communication channel.

[0068] Of course, in other embodiments, the first connecting channel 116 can be configured to connect the end of the first water channel 113 away from the water inlet 111 with the end of the second water channel 114 close to the water inlet 111, and the second connecting channel connects the end of the second water channel 114 away from the water inlet 111 with the end of the third water channel 115 close to the water inlet 111. This configuration can further extend the length of the water inlet channel, but the processing difficulty is greater.

[0069] In one embodiment, continue to refer to Figure 7 、 Figure 9 and Figure 12 The first communication channel 116 is provided through the side wall of the water outlet pipe 11, and the through end of the first communication channel 116 is provided with a first waterproof plug 12. When machining the first communication channel 116, the first communication channel 116 is opened from the side wall of the water outlet pipe 11, which makes machining easier. After machining, the through end of the first communication channel 116 can be sealed with the first waterproof plug 12.

[0070] In one embodiment, continue to refer to Figures 9-13 The end of the outlet pipe 11 near the water inlet 111 is provided with a connecting groove 117 that connects the second water channel 114 and the third water channel 115. The end of the outlet pipe 11 near the water inlet 111 is sealed by the second waterproof plug 13, and the connecting groove 117 abuts the second waterproof plug 13 to form a second connecting channel. To facilitate processing, a cavity 119 is left at the end of the outlet pipe 11 near the water inlet 111, which is connected to the end. This allows for processing of the first water channel 113, the second water channel 114, and the third water channel 115 from the end where the cavity 119 is located. The connecting groove 117 connecting the second water channel 114 and the third water channel 115 is then processed at the bottom of the cavity 119. The second waterproof plug 13 is then inserted into the cavity 119 and abuts against the connecting groove 117, thereby sealing the end of the first water channel 113 near the water inlet 111 and forming a second connecting channel between the connecting groove 117 and the second waterproof plug 13.

[0071] To ensure a tight seal between the end of the first water channel 113 near the cavity 119 and the connecting groove 117, a third waterproof plug 14 is provided at the end of the first water channel 113 near the water inlet 111. After the first water channel 113 is sealed by the third waterproof plug 14, water entering the first water channel 113 through the water inlet 111 can only flow along the first water channel 113 away from the water inlet 111, and cannot enter the second water channel 114 and the third water channel 115 through the connecting groove 117, thus preventing the increase in leakage current caused by shortening the water flow path.

[0072] In one embodiment, the water outlet 112 is disposed circumferentially around the outlet pipe 11. This arrangement positions the axis of the water outlet 112 vertically downward, which is more consistent with the design of the water outlet structure of an electric faucet. A fourth waterproof plug 16 is disposed at the end of the outlet pipe 11 near the water outlet 112, thereby sealing the end of the outlet pipe 11 near the water outlet 112.

[0073] The water inlet 111 of the water outlet pipe 11 is further provided with a water inlet pipe 17 with its axis arranged in the vertical direction. The water inlet pipe 17 and the water outlet pipe 11 are arranged as an integral structure. The water outlet pipe 11 is connected to the main water outlet 241 through the water inlet pipe 17 .

[0074] In one embodiment, sealing grooves are provided around the second waterproof plug 13, the fourth waterproof plug 16 and the water inlet pipe 17, and a waterproof sealing ring 6 is provided in the sealing groove to ensure the sealing of the water outlet pipe 11 and the sealing of the connection between the water outlet pipe 11 and the inner tank body 21.

[0075] In one embodiment, the length of the water channel is half the length of the outlet pipe assembly 1. This arrangement not only extends the length of the water inlet channel, but also facilitates the processing of the water channel. If the length of the water channel is too long, it will be difficult to pull the core during injection molding.

[0076] In one embodiment, a first water outlet cavity 118 is provided at one end of the water outlet pipe assembly 1 away from the inner liner assembly 2. One end of the first water outlet cavity 118 is connected to the water inlet channel, and the other end is connected to the water outlet 112 of the water outlet pipe assembly 1. The provision of the first water outlet cavity 118 reduces the outlet pressure of the water outlet pipe assembly 1, thereby preventing the waterproof sealing ring 6 from failing due to excessive pressure in the water outlet pipe assembly 1.

[0077] In one embodiment, continue to refer to Figure 8 The outer periphery of the water outlet pipe 11 is provided with a connecting lug 15 , and the water outlet pipe assembly 1 is fixed by the connecting lug 15 .

[0078] Continue to refer to Figure 2The electric water faucet further comprises a housing 5, which comprises a first housing 51 and a second housing 52. The first housing 51 is sleeved over the inner tank assembly 2, and the second housing 52 is sleeved over the outlet pipe assembly 1. The second housing 52 comprises a bottom housing 521 and a top housing 522. The top housing 522 is mounted on the bottom housing 521 and is detachably connected to the bottom housing 521. A connection port is provided on the side of the bottom housing 521 near the inner tank body 21. The connection port is connected to one end of the first housing 51. The water inlet pipe 17 provided at the water inlet 111 extends out of the connection port and is sealedly connected to the main water outlet 241.

[0079] The first housing 51 is externally connected to a faucet switch 4. During installation, the outlet pipe assembly 1 is first placed within the first housing 51, and the faucet switch 4 is connected to the three-way switch valve in the inner tank assembly 2. The bottom shell 521 of the second housing 52 is then connected to the first housing 51, and the outlet pipe assembly 1 is placed within the bottom shell 521. Specifically, connection holes 151 are provided at both ends of the connecting lugs 15. The outlet pipe assembly 1 is secured to the bottom shell 521 using two fastening screws. Finally, the top shell 522 is placed over the bottom shell 521 to secure it.

[0080] The electric water faucet provided in this embodiment provides a flow guide 22 in the inner tank body 21. For an electric water faucet with a smaller volume of the heating chamber 213, when the electric water faucet is started again, cold water enters the flow guide 22 through the switch valve from the autonomous water inlet 211, and is guided by the flow guide 22 to flow into the second water outlet chamber 214. The high-temperature hot water remaining from the last time is cooled by the cold water, thereby reducing the risk of scalding to the user. At the same time, by setting the water inlet flow channel of the water outlet pipe 11 as a flow channel that is connected in a circuitous manner, the water inlet path of the water outlet pipe assembly 1 is extended, and the resistance of the water inside the water outlet pipe assembly 1 is increased. When the electric water faucet leaks, the leakage current is small, thereby reducing the leakage hazard; thus, the safety of the electric water faucet is improved.

[0081] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. An electric water faucet, comprising a water outlet pipe assembly (1), characterized in that: One end of the water outlet pipe assembly (1) is provided with a water inlet (111), and the other end is provided with a water outlet (112). The end of the water outlet pipe assembly (1) close to the water inlet (111) is provided with a plurality of water channels extending along the length direction of the water outlet pipe assembly (1). The plurality of water channels are arranged at intervals along the radial direction of the water outlet pipe assembly (1), and adjacent water channels are connected to form a water inlet flow channel that is connected in a circuitous manner in sequence. One end of the water inlet flow channel is connected to the water inlet (111), and the other end is connected to the water outlet (112).

2. The electric water faucet according to claim 1, characterized in that: The water outlet pipe assembly (1) comprises a water outlet pipe (11); the water channel is provided at one end of the water outlet pipe (11) close to the water inlet (111); the water channel comprises a first water channel (113), a second water channel (114) and a third water channel (115); one end of the first water channel (113) is in communication with the water inlet (111); the other end of the first water channel (113) is in communication with one end of the second water channel (114); the other end of the second water channel (114) is in communication with one end of the third water channel (115); and the other end of the third water channel (115) is in communication with the water outlet (112).

3. The electric water faucet according to claim 2, characterized in that: The other end of the first water channel (113) is connected to one end of the second water channel (114) through a first connecting channel (116), and the other end of the second water channel (114) is connected to one end of the third water channel (115) through a second connecting channel.

4. The electric water faucet according to claim 3, characterized in that: The first communication channel (116) and the second communication channel both extend in a direction perpendicular to the water channel.

5. The electric water faucet according to claim 4, characterized in that: The first communication channel (116) is provided through the side wall of the water outlet pipe (11), and a first waterproof plug (12) is provided at the through end of the first communication channel (116).

6. The electric water faucet according to claim 4, characterized in that: The end of the water outlet pipe (11) close to the water inlet (111) is provided with a connecting groove (117) connecting the second water channel (114) and the third water channel (115), and the end of the water outlet pipe (11) close to the water inlet (111) is sealed by a second waterproof plug (13), and the connecting groove (117) abuts against the second waterproof plug (13) to form the second connecting channel.

7. The electric water faucet according to any one of claims 1 to 6, characterized in that: The electric water faucet further comprises an inner tank assembly (2), and the inner tank assembly (2) comprises: An inner liner body (21), wherein one end of the inner liner body (21) is provided with a main water inlet (211), and the other end is provided with a main water outlet (241); a heating chamber (213) is provided in the inner liner body (21); the main water inlet (211) and the main water outlet (241) are both in communication with the heating chamber (213); and the main water outlet (241) is in communication with the water inlet (111); A heating element (3) is disposed in the heating chamber (213), and a second water outlet chamber (214) is formed between an end of the heating element (3) close to the main water outlet (241) and the main water outlet (241); A flow guide (22) is provided in the heating chamber (213), one end of the flow guide (22) is communicated with the main water inlet (211), and the other end extends to the second water outlet chamber (214) and is provided with a water outlet hole (222); the water outlet hole (222) is spaced apart from the main water outlet (241), and the main water outlet (241) is communicated with the water inlet channel.

8. The electric water faucet according to claim 7, characterized in that: A radial spacing and an axial spacing are left between the water outlet hole (222) and the main water outlet (241).

9. The electric water faucet according to claim 8, characterized in that: The radial spacing is H, then 1 / 6D<H≤1 / 4D, wherein D is the inner diameter of the liner body (21); And / or, the axial spacing is h, then 10mm≤h≤20mm.

10. The electric water faucet according to claim 7, characterized in that: The flow guide (22) is integrally formed with the inner wall of the liner body (21).

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