Intelligent faucet control module

Abstract

The utility model discloses an intelligent faucet control module which comprises a temperature adjusting valve set which comprises a first valve seat, a temperature adjusting valve element is installed in the first valve seat, the water inlet end of the temperature adjusting valve element is connected with a cold water inlet and a hot water inlet in a sealed mode, and the water outlet end of the temperature adjusting valve element is located in a water mixing cavity. The temperature adjusting valve element is provided with a temperature adjusting knob for controlling the proportion of cold water and hot water entering the water mixing cavity, and the temperature adjusting knob is in transmission connection with a stepping motor; the flow control valve group comprises a second valve seat, the second valve seat is provided with a warm water inlet and a water outlet, the warm water inlet is communicated with a water mixing cavity pipeline, a flow control valve element is installed in the second valve seat to control connection and disconnection of a water path, the flow control valve element is provided with a flow control knob to adjust the flow of water passing through the flow control valve element, and the flow control knob is in transmission connection with a direct current motor. The stepping motor in the device controls the temperature adjusting valve element, the water temperature can be accurately controlled, meanwhile, the direct current motor drives the flow control valve element, the water flow can be automatically adjusted according to user requirements, and double intelligent control over the water temperature and the flow is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mixing valve technology, specifically to a smart control module for a faucet. Background Technology

[0002] With the acceleration of urbanization and the improvement of residents' living standards, the demand for intelligent bathroom products is becoming increasingly prominent, especially the functionality and convenience of faucets, which have become key concerns for consumers. While traditional mechanical faucets are simple in structure and inexpensive, they have significant limitations in practical use, such as inaccurate water temperature adjustment and unstable flow control, resulting in a poor user experience. With the rapid development of electronic technology, electronic faucets are gradually becoming a market trend.

[0003] However, most electronic faucets currently on the market only have basic on / off functions and cannot intelligently adjust water temperature and flow. Although some products attempt to achieve water temperature regulation through a combination of solenoid valves and mechanical valve cores, users still need to make frequent manual adjustments due to differences in water pressure and flow in the hot and cold water pipes, making true automated control difficult to achieve. Furthermore, while some existing technologies employ mixing valve designs, such as using double-linkage valves to mix hot and cold water, their temperature adjustment range is limited and cannot meet users' needs for precise water temperature control. Chinese patent CN102086941B discloses a mixing valve that, through a double-linkage valve, can fully mix hot and cold water before discharging. However, this structure can only adjust the flow rate of cold water entering the hot water supply, resulting in a small temperature adjustment range that also fails to meet users' needs for precise water temperature control.

[0004] Existing mixing valve technology has significant shortcomings in terms of precision, and there is an urgent need for a smart faucet solution that can integrate automatic temperature adjustment and constant flow control functions to further enhance the user experience and meet the high-quality demands of modern life for bathroom products. Utility Model Content

[0005] This utility model provides a smart faucet control module, which achieves precise control of water temperature and water volume through a connected temperature regulating valve group and a flow controlling valve group.

[0006] To achieve these objectives and other advantages of this utility model, a smart faucet control module is provided, comprising: a temperature regulating valve assembly, which includes a first valve seat forming a mixing chamber, a temperature regulating valve core installed in the mixing chamber, the inlet end of the temperature regulating valve core being sealed and connected to a cold water inlet and a hot water inlet respectively, the outlet end of the temperature regulating valve core being located in the mixing chamber, the temperature regulating valve core being provided with a temperature regulating knob to control the ratio of cold water to hot water entering the mixing chamber, the temperature regulating knob extending out of the first valve seat and being driven by the rotor of a stepper motor; and a flow control valve assembly, which includes a second valve seat having a warm water inlet and a drain outlet, the warm water inlet being connected to the mixing chamber pipeline, a flow control valve core installed in the second valve seat to control the flow between the warm water inlet and the drain outlet, the flow control valve core being provided with a flow control knob to adjust the water flow rate through the flow control valve core, the flow control knob extending out of the second valve seat and being driven by the rotor of a DC motor.

[0007] Preferably, the first valve seat is provided with a first connecting pipe, the inside of which is connected to the mixing chamber, and the warm water inlet extends out of the second valve seat with a second connecting pipe, and the first connecting pipe and the second connecting pipe are detachably connected.

[0008] Preferably, the second connecting tube is fitted into the port of the first connecting tube. The first connecting tube has two pairs of pin holes along its length perpendicular to the axis on its tube wall in the fitting area. The outer tube wall of the second connecting tube has a recessed fixing groove with a width equal to the diameter of the pin holes. When the second connecting tube is fitted into the first connecting tube, the two pairs of pin holes are precisely matched with the fixing groove. A U-shaped pin has two parallel pin shafts that are fitted into one pair of pin holes.

[0009] Preferably, it also includes a temperature-adjusting shaft, with its two ends connected to the temperature-adjusting knob and the rotor of the stepper motor, respectively. The temperature-adjusting shaft is cylindrical, with a first protrusion protruding from its outer wall. A reset switch is disposed on the outside of the temperature-adjusting shaft. The reset switch is a micro switch with a first spring, which is located on the rotation path of the first protrusion. The reset switch is signal-connected to the stepper motor. When the first protrusion contacts the first spring, the stepper motor stops.

[0010] Preferably, it also includes a current control shaft, with its two ends connected to the current control knob and the rotor of the DC motor, respectively. The current control shaft is cylindrical, with a second protrusion protruding from its outer wall. Two limit switches are disposed on both sides of the current control knob. The limit switches are micro switches with a second spring. Both second springs are located on the rotation path of the second protrusion. The limit switches are signal-connected to the DC motor. The second protrusion rotates with the current control shaft between the two second springs. When the second protrusion touches the second spring, the DC motor stops.

[0011] Preferably, it also includes a first temperature sensor and a second temperature sensor, with the probe of the first temperature sensor disposed in the hot water inlet and the probe of the second temperature sensor disposed at the drain outlet, and both the first temperature sensor and the second temperature sensor being signal-connected to the stepper motor.

[0012] Preferably, a flow meter is installed inside the first connecting pipe, and the flow meter is connected to the DC motor signal.

[0013] Preferably, it also includes a housing, inside which the temperature control valve group and the flow control valve group are fixed, and the drain port, the cold water inlet and the hot water inlet respectively protrude from the corresponding through holes on the housing and are provided with a sealing structure between them and the housing.

[0014] Preferably, a battery is fixed inside the housing.

[0015] This utility model has at least the following beneficial effects:

[0016] First, by controlling the temperature regulating valve core with a stepper motor, the automatic adjustment of the hot and cold water ratio is achieved, enabling precise control of water temperature to meet users' exact temperature requirements. Simultaneously, the flow control valve core driven by a DC motor automatically adjusts the water flow rate according to user needs, achieving dual intelligent control of both water temperature and flow rate.

[0017] Secondly, the temperature control valve assembly and the flow control valve assembly are connected by a detachable first and second connecting pipe and fixed with a pin, which simplifies the installation process and facilitates later maintenance and replacement of parts, thereby improving the operability and service life of the product.

[0018] Third, the temperature control shaft and the flow control shaft are equipped with reset switches and limit switches respectively. Through the cooperation of micro switches and protrusions, the limit switches ensure that the DC motor stops automatically when it reaches the set position, avoiding motor overload or valve over-limit operation, and improving the safety and stability of the system. The reset switch is used to reposition the stepper motor to avoid water temperature errors caused by stepper motor stroke errors due to power outages or other situations.

[0019] Fourth, temperature sensors are installed at both the hot water inlet and outlet to monitor the inlet and outlet water temperatures in real time. Feedback signals are used to adjust the stepper motor's operation, ensuring precise water temperature control. Simultaneously, a flow meter monitors the water flow rate in real time and works in conjunction with the DC motor to achieve precise flow regulation.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall device in one technical solution of this utility model;

[0022] Figure 2 This is a disassembly diagram of the device in one technical solution of this utility model;

[0023] Figure 3 This is a front sectional view of the device in one technical solution of this utility model;

[0024] Figure 4 This is a front sectional view of a temperature control valve assembly in one of the technical solutions of this utility model;

[0025] Figure 5 This is a front sectional view of the flow control valve assembly in one technical solution of this utility model;

[0026] Figure 6 This is a disassembly diagram of the temperature control valve assembly in one technical solution of this utility model;

[0027] Figure 7 This is a disassembly diagram of the flow control valve assembly in one technical solution of this utility model;

[0028] Figure 8 This is a schematic diagram showing the connection between the flow control valve group and the temperature control valve group in one technical solution of this utility model;

[0029] Figure 9 This is a schematic diagram of the working principle of a temperature-regulating rotating shaft according to the present invention;

[0030] Figure 10 This is a schematic diagram of the operation of a flow control rotating shaft according to the present invention;

[0031] Figure 11 This is a system diagram of one technical solution of this utility model.

[0032] Figure Descriptions: 1. Housing; 10. Hanging groove; 11. Fixing plate; 2. Water inlet pipe; 3. Temperature control valve assembly; 301. Cold water inlet; 302. Hot water inlet; 31. First valve seat; 310. Mixing chamber; 311. First connecting pipe; 3110. Pin hole; 32. Temperature control valve core; 321. Temperature control knob; 33. Temperature control shaft; 331. First protrusion; 34. Stepper motor; 341. Stepper motor support; 342. Sealing gasket; 343. Fixing cover plate; 344. Sealing sleeve; 35. Reset switch; 351. First spring; 3 6-Fixed seat, 4-Flow control valve assembly, 40-Drain outlet, 41-Second valve seat, 410-Warm water inlet, 411-Second connecting pipe, 4110-Fixed groove, 42-Flow control valve core, 421-Flow control knob, 43-Flow control shaft, 431-Second protrusion, 44-DC motor, 441-Sealing sleeve, 45-Limit switch, 451-Second spring, 46-Sealing pressure ring, 47-DC motor support, 5-First temperature sensor, 51-Second temperature sensor, 6-Flow meter, 7-Pin, 8-Control circuit board, 9-Battery. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0034] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0035] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the components described are commercially available unless otherwise specified. In the description of this utility model, it should be noted that, unless otherwise explicitly stated and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] like Figure 1-11As shown, the technical solution of this application provides a smart faucet control module, including: a temperature regulating valve assembly 3, which includes a first valve seat 31, a mixing chamber 310 formed in the first valve seat 31, a temperature regulating valve core 32 installed in the mixing chamber 310, the inlet end of the temperature regulating valve core 32 being sealed and connected to a cold water inlet 301 and a hot water inlet 302 respectively, the outlet end of the temperature regulating valve core 32 being located in the mixing chamber 310, the temperature regulating valve core 32 being provided with a temperature regulating knob 321 to control the ratio of cold water to hot water entering the mixing chamber 310, and the temperature regulating knob 321 extending out of the first valve seat 310. The valve assembly 4 includes a second valve seat 41, which has a warm water inlet 410 and a drain outlet 40. The warm water inlet 410 is connected to the mixing chamber 310 via a pipeline. A flow control valve core 42 is installed inside the second valve seat 41 to control the flow between the warm water inlet 410 and the drain outlet 40. The flow control valve core 42 is provided with a flow control knob 421 to adjust the water flow rate through the flow control valve core 42. The flow control knob 421 extends out of the second valve seat 41 and is connected to the rotor of a DC motor 44 via a drive. In this technical solution, both the temperature control valve core 32 and the flow control valve core 42 are readily available ceramic valve cores. The temperature control valve core 32 includes two or more high-precision ceramic discs with cold water inlets and hot water inlets. When the temperature control knob is rotated, adjacent ceramic discs rotate relative to each other, changing the overlap area of ​​the cold water inlets and hot water inlets, thereby adjusting the flow ratio of cold water and hot water entering the mixing chamber 310. The cold water inlet 301 and the hot water inlet 302 correspond to the cold water inlets and hot water inlets on the temperature control valve core 32 and are connected to the external water inlet pipe 2. The flow control valve core 42 internally... It includes a movable valve stem or valve plate. When the flow control knob 421 is rotated, the valve stem or valve plate will move accordingly, opening or closing part of the water flow channel. The stepper motor 34 and the DC motor 44 are both commercially available finished components. The stepper motor 34 can precisely control the rotational movement at a fixed angle. The rotor part of the stepper motor 34 is connected to the temperature control knob 321 to precisely control the opening degree of the cold water port and the hot water port in the temperature control valve core 32. The DC motor 44 is suitable for applications that require rapid start-up. It can quickly respond to the signal and turn the flow control knob 421.

[0037] In this technical solution, such as Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the first valve seat 31 and the second valve seat 41 are both separate integral components. The temperature regulating valve core 32 is installed into the mixing chamber 310 through a pre-drilled hole in the first valve seat 31. The mixing chamber 310 is sealed and the temperature regulating valve core 32 is fixed by a fixing seat 36. The fixing seat 36 has a through hole to allow the temperature regulating knob 321 to extend out of the first valve seat 31. A stepper motor support 341 is also connected to the fixing seat 36. The stepper motor support 341 is a box structure with an open top, in which a stepper motor 34 is installed. The side of the stepper motor support 341 facing the temperature regulating valve core 32 has a through hole to allow the rotor of the stepper motor 34 to pass through. The through hole of the stepper motor support 341 and the stepper motor 34 are sealed with a rubber ring or similar structure. After the stepper motor 34 is inserted and positioned from the open end of the stepper motor support 341, the fixing cover plate 343 is fastened onto the open end of the stepper motor support 341. One or more sealing gaskets 342 are provided between the stator of the stepper motor 34 and the fixing cover plate 343. The sealing gasket 342 is annular, and its outer contour matches the inner wall of the stepper motor support 341 to form a seal between the stator of the stepper motor 34 and the inner wall of the stepper motor support 341. The fixing cover plate 343 is also provided with a sealing sleeve 344. The sealing sleeve 344 is a block structure with through holes through which the cable of the stepper motor 34 passes. The sealing sleeve 344 is made of rubber or other materials, and there are no gaps between its through holes and the cable inside, providing a good watertight effect.

[0038] The second valve seat 41 has a pre-drilled hole through which the flow control valve core 42 is inserted. The flow control valve core 42 is integrally fitted into the passage between the warm water inlet 410 and the drain outlet 40. When the flow control valve core 42 is in the closed state, the water flow between the warm water inlet 410 and the drain outlet 40 is completely blocked. A sealing ring 46 is screwed into the opening position of the pre-drilled hole in the second valve seat 41. The sealing ring 46 fixes the flow control valve core 42 and makes the second valve seat 41 watertight. The flow control knob 421 extends out of the second valve seat 41, and the second valve... A DC motor support 47 is also installed on the base 41. The DC motor 44 is fixed on the DC motor support 47. The rotor of the DC motor 44 extends out of the DC motor support 47 and is connected to the current control knob 421. The DC motor 44 is covered with a sealing sleeve 441. The sealing sleeve 441 is a cylindrical structure made of rubber or plastic. The sealing sleeve 441 and the DC motor support 47 form a watertight seal to prevent water from entering. The sealing sleeve 441 is provided with a wire hole through which the cable of the DC motor 44 passes.

[0039] In this technical solution, both the DC motor 44 and the stepper motor 34 are electrically connected to a control circuit board 8. The control circuit board 8 can be a commercially available PCB board, including a power management system and a motor drive circuit. The control circuit board 8 is connected to an external smart faucet and controls the rotation of the DC motor 44 and the stepper motor 34 according to the temperature and flow information set in the smart faucet. The control circuit board 8 is also connected to an external power supply or battery to supply power to the DC motor 44 and the stepper motor 34. This device can accurately control the water temperature and flow, meet the user's precise water temperature requirements, and achieve dual intelligent control of water temperature and flow.

[0040] In another technical solution, the first valve seat 31 is provided with a first connecting pipe 311, which communicates with the mixing chamber 310. The warm water inlet 410 extends outward from the second valve seat 41 with a second connecting pipe 411. The first connecting pipe 311 and the second connecting pipe 411 are detachably connected. The first valve seat 31 and the second valve seat 41 are detachably connected. The first connecting pipe 311 and the second connecting pipe 411 can be connected by a socket joint, which facilitates the separate production and processing of the first valve seat 31 and the second valve seat 41, and also facilitates later maintenance and replacement of parts.

[0041] In another technical solution, the second connecting tube 411 is fitted into the port of the first connecting tube 311. The first connecting tube 311 has two pairs of pin holes 3110 perpendicular to its axis along its entire length on the tube wall in the fitting area. The outer tube wall of the second connecting tube 411 has a recessed fixing groove 4110 with a width equal to the diameter of the pin holes 3110. When the second connecting tube 411 is fitted into the first connecting tube 311, the two pairs of pin holes 3110 are precisely aligned with the fixing groove 4110. There is a U-shaped pin 7, with its two parallel pin shafts each fitting into a pair of pin holes 3110. In this technical solution, one or more sealing rings are fitted on the second connecting tube 411, and a watertight seal is formed between the outer wall of the second connecting tube 411 and the inner wall of the first connecting tube 311. After connection, the second connecting tube 411 and the first connecting tube 311 are axially fixed by the pin 7 to prevent loosening or falling off. The user only needs to insert or pull out the pin 7 to complete the connection or separation. The connection method is simple and effective.

[0042] In another technical solution, a temperature-adjusting shaft 33 is also included, with its two ends connected to the temperature-adjusting knob 321 and the rotor of the stepper motor 34, respectively. The temperature-adjusting shaft 33 is cylindrical, with a first protrusion 331 protruding from its outer wall. A reset switch 35 is disposed on the outside of the temperature-adjusting shaft 33. The reset switch 35 is a micro switch with a first spring 351 located on the rotation path of the first protrusion 331. The reset switch 35 is signal-connected to the stepper motor 34. When the first protrusion 331 contacts the first spring 351, the stepper motor 34 stops. In this technical solution, the reset switch 35 is a commercially available micro switch. The reset switch 35 is signal-connected to the control circuit board 8 and is fixed on the mounting base 36 and connected to the first... One protrusion 331 is flush with the first spring 351. The initial rotation angle of the stepper motor 34 corresponds to the angle at which the first protrusion 331 contacts the first spring 351. Since the stepper motor 34 rotates at a certain angle each time, if the device suddenly loses power or other unexpected situations occur, the stepper motor 34 will stop before completing the fixed angle rotation. When power is restored, the stepper motor 34 will have a rotation error, which will result in the inability to accurately control the opening degree of the cold water port and hot water port in the temperature regulating valve core 32. By setting a reset switch 35, when the power is restored each time, the stepper motor 34 can rotate back until it touches the first spring 351. At this time, the rotation angle of the stepper motor 34 is the initial rotation angle, so that the opening degree of the cold water port and hot water port of the temperature regulating valve core 32 can be accurately controlled, avoiding the problem of inaccurate temperature control caused by power failure.

[0043] In another technical solution, a current control shaft 43 is also included, with its two ends connected to the current control knob 421 and the rotor of the DC motor 44, respectively. The current control shaft 43 is cylindrical, with a second protrusion 431 protruding from its outer wall. Two limit switches 45 are disposed on both sides of the current control knob 421. Each limit switch 45 is a micro switch with a second spring 451. Both second springs 451 are located on the rotation path of the second protrusion 431. The limit switches 45 are signal-connected to the DC motor 44. The second protrusion 431 rotates with the current control shaft 43 between the two second springs 451. When the second protrusion 431 touches the second spring 451... When the DC motor 44 stops, the limit switch 45 is a readily available micro switch. The limit switch 45 is connected to the control circuit board 8 and is fixed on the DC motor support 47. The second protrusion 431 rotates between the two second springs 451. When the second protrusion 431 contacts one of the second springs 451, the DC motor 44 stops. At this time, the valve port in the flow control valve core 42 is closed. This not only ensures that the flow control knob 421 operates within a safe range, but also achieves a constant water output each time by adjusting the position of the limit switch 45 or the speed of the DC motor 44. The DC motor 44 can control the rotation speed of its rotor to adjust the water output each time.

[0044] In another technical solution, a first temperature sensor 5 and a second temperature sensor 51 are also included. The probe of the first temperature sensor 5 is disposed in the hot water inlet 302, and the probe of the second temperature sensor 51 is disposed at the drain outlet 40. Both the first temperature sensor 5 and the second temperature sensor 51 are connected to the stepper motor 34. In this technical solution, both the first temperature sensor 5 and the second temperature sensor 51 are connected to the control circuit board 8 to monitor the temperature of the hot water in the inlet pipe 2 and the temperature of the drain water, respectively, providing real-time data so that the system can quickly respond to temperature changes and adjust the rotation of the stepper motor 34 to adjust the mixing ratio of hot and cold water.

[0045] In another technical solution, a flow meter 6 is installed inside the first connecting pipe 311. The flow meter 6 is signal-connected to the DC motor 44. In this technical solution, the flow meter 6 includes a magnetic impeller rotor and a Hall sensor on the impeller rotor at a corresponding position outside the first connecting pipe 311. The impeller rotor in the flow meter 6 rotates under the action of water flow. The Hall sensor detects the change in the magnetic field of the impeller in the flow meter 6. By counting the number of pulses output by the Hall sensor per unit time, the rotational speed of the impeller and the water flow rate can be calculated.

[0046] In another technical solution, a housing 1 is also included, in which the temperature regulating valve group 3 and the flow control valve group 4 are fixed. The drain port 40, the cold water inlet 301, and the hot water inlet 302 pass through the corresponding through holes on the housing 1 and are sealed with the housing 1. In this technical solution, the housing 1 is provided with slots, wire grooves and other structures for fixing the temperature regulating valve group 3 and the flow control valve group 4. It can also encapsulate an external control module and a power supply device such as a battery. The housing 1 is also fixed with a hanging groove 10, which is inserted and fixed to the fixing piece 11 fixed to the external structure, so that the installer can fix the device to the wall or other structure.

[0047] In another technical solution, a battery 9 is fixed inside the housing 1. The battery 9 is a battery pack that is easy to replace, such as a lithium battery. The battery 9 is electrically connected to the control circuit board 8 and serves as an emergency power source in the event of a power outage. In this way, even if the device encounters a sudden power outage during operation, the battery 9 can still drive the stepper motor 34 and the DC motor 44, thus avoiding water waste. When there is a power supply, the battery 9 enters the charging state.

[0048] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0049] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A smart faucet control module, characterized in that, include: The temperature control valve assembly (3) includes a first valve seat (31), a mixing chamber (310) is formed in the first valve seat (31), a temperature control valve core (32) is installed in the mixing chamber (310), the inlet end of the temperature control valve core (32) is respectively sealed and connected to a cold water inlet (301) and a hot water inlet (302), the outlet end of the temperature control valve core (32) is located in the mixing chamber (310), the temperature control valve core (32) is provided with a temperature control knob (321) to control the ratio of cold water and hot water entering the mixing chamber (310), the temperature control knob (321) extends out of the first valve seat (31) and is connected to the rotor drive of a stepper motor (34); The flow control valve assembly (4) includes a second valve seat (41), which has a warm water inlet (410) and a drain outlet (40). The warm water inlet (410) is connected to the mixing chamber (310) via a pipeline. A flow control valve core (42) is installed inside the second valve seat (41) to control the flow between the warm water inlet (410) and the drain outlet (40). The flow control valve core (42) is equipped with a flow control knob (421) to adjust the water flow rate through the flow control valve core (42). The flow control knob (421) extends out of the second valve seat (41) and is connected to the rotor drive of a DC motor (44).

2. The smart faucet control module as described in claim 1, characterized in that, The first valve seat (31) is provided with a first connecting pipe (311), which is connected to the mixing chamber (310). The warm water inlet (410) extends out of the second valve seat (41) with a second connecting pipe (411). The first connecting pipe (311) and the second connecting pipe (411) are detachably connected.

3. The smart faucet control module as described in claim 2, characterized in that, The second connecting tube (411) is fitted into the port of the first connecting tube (311). The first connecting tube (311) has two pairs of pin holes (3110) along its length perpendicular to the axis on the tube wall in the fitting area. The outer tube wall of the second connecting tube (411) has a ring of fixing groove (4110) with the same width as the diameter of the pin holes (3110). When the second connecting tube (411) is fitted into the first connecting tube (311), the two pairs of pin holes (3110) are exactly matched with the fixing groove (4110). There is a U-shaped pin (7), and its two parallel pin shafts are fitted into a pair of pin holes (3110).

4. The smart faucet control module as described in claim 1, characterized in that, It also includes a temperature-adjusting shaft (33), whose two ends are respectively connected to the temperature-adjusting knob (321) and the rotor of the stepper motor (34). The temperature-adjusting shaft (33) is cylindrical, and its outer wall has a first protrusion (331). A reset switch (35) is located on the outside of the temperature-adjusting shaft (33). The reset switch (35) is a micro switch with a first spring (351). The first spring (351) is located on the rotation path of the first protrusion (331). The reset switch (35) is signal-connected to the stepper motor (34). When the first protrusion (331) contacts the first spring (351), the stepper motor (34) stops.

5. The smart faucet control module as described in claim 1, characterized in that, It also includes a flow control shaft (43), whose two ends are respectively connected to the flow control knob (421) and the rotor of the DC motor (44). The flow control shaft (43) is cylindrical, and its outer wall protrudes with a second protrusion (431). Two limit switches (45) are set on both sides of the flow control knob (421). The limit switch (45) is a micro switch with a second spring (451). The two second springs (451) are located on the rotation path of the second protrusion (431). The limit switch (45) is signal connected to the DC motor (44). The second protrusion (431) rotates with the flow control shaft (43) between the two second springs (451). When the second protrusion (431) touches the second spring (451), the DC motor (44) stops.

6. The smart faucet control module as described in claim 1, characterized in that, It also includes a first temperature sensor (5) and a second temperature sensor (51). The probe of the first temperature sensor (5) is located in the hot water inlet (302), and the probe of the second temperature sensor (51) is located at the drain outlet (40). Both the first temperature sensor (5) and the second temperature sensor (51) are connected to the stepper motor (34) via signal.

7. The smart faucet control module as described in claim 1, characterized in that, A flow meter (6) is installed inside the first connecting pipe (311), and the flow meter (6) is connected to the DC motor (44) via signal.

8. The smart faucet control module as described in claim 1, characterized in that, It also includes a housing (1), inside which the temperature control valve group (3) and the flow control valve group (4) are fixed. The drain port (40), the cold water inlet (301), and the hot water inlet (302) pass through the corresponding through holes on the housing (1) and are respectively sealed with the housing (1).

9. The smart faucet control module as described in claim 8, characterized in that, A battery (9) is fixed inside the housing (1).

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