Control module applied to water outlet device, waterway switching device, water outlet device and shower head

Abstract

The application discloses a control module applied to a water outlet device, a waterway switching device, the water outlet device and a shower. The water outlet device comprises a switching valve, a control module and a water turbine. The switching valve comprises a valve body, a valve rod and at least two electromagnetic valves. The valve rod is arranged to control the opening and closing of a first water outlet. Each electromagnetic valve is arranged to control the opening and closing of a second water outlet. When all the second water outlets are in the closed state, the valve rod is moved to a position to open the first water outlet. When at least one second water outlet is opened, the valve rod is moved to a position to close the first water outlet. The control module is configured to receive operation information of a user. The operation information is used to control the opening and closing of one of the at least two electromagnetic valves. In response to the operation information, the control module controls one electromagnetic valve corresponding to the operation information to be opened, so that the second water outlet corresponding to the electromagnetic valve is opened. The application can solve the problem that the water outlet device cannot switch the water outlet mode when the water outlet device is just connected to water.

Description

Technical Field

[0001] This article relates to the field of bathroom technology, and in particular to a control module, water circuit switching device, water outlet device and shower head applied to water outlet device. Background Technology

[0002] Existing multi-functional water outlet devices, such as showerheads and overhead showers, typically offer multiple water flow modes. Current methods for switching these modes include mechanical toggle switches and electronic controls. Mechanical switches require specific structures, limiting the design aesthetics of the showerhead and overhead shower and the user experience, making them unsuitable for diverse bathroom design styles. Electronic controls, due to the nature of showerheads and overhead showers, cannot be directly charged and generally require self-generated power to operate the solenoid valves that control the water flow mode switching. However, with electronic control, the initial water pressure is insufficient, limiting the available power to typically only one solenoid valve. Adding more solenoid valves results in insufficient power, preventing responsiveness to user input. Therefore, the water flow modes of showerheads and overhead showers controlled by solenoid valves are limited to ensure a good user experience. Summary of the Invention

[0003] This application provides a control module, water path switching device, water outlet device, and shower head for use in a water outlet device, in order to solve the problem in the prior art where the power generation is initially unstable when the solenoid valve is opened and closed to switch the water outlet mode by electronic control, which restricts the water outlet mode.

[0004] This application provides a control module for a water outlet device. The water outlet device includes a switching valve, a control module, and a hydroelectric generator. The hydroelectric generator supplies power to the control module and the switching valve. The switching valve includes a valve body, a valve stem, and at least two solenoid valves. The valve body has an inlet, a first outlet, and at least two second outlets. The valve stem is configured to control the opening and closing of the first outlet. Each solenoid valve is configured to control the opening and closing of one of the second outlets. The valve body has an inlet chamber communicating with the inlet. The valve stem is movably located within the inlet chamber. When both second outlets are closed, the valve stem can move to the position of opening the first outlet under the inlet pressure of the inlet chamber. When at least one second outlet is open, the valve stem can move to the position of closing the first outlet under the inlet pressure of the inlet chamber.

[0005] The control module is configured as follows:

[0006] Receive user operation information; the operation information is used to control the opening and closing of one of the at least two solenoid valves;

[0007] In response to the operation information, a solenoid valve corresponding to the operation information is controlled to open, so that the second outlet corresponding to the solenoid valve is opened.

[0008] In one embodiment, the at least two solenoid valves include a first solenoid valve and a second solenoid valve, and the control module is further configured to:

[0009] In response to the user's first operation information, the first solenoid valve is opened while the second solenoid valve remains closed;

[0010] In response to a second operation message from the user, the second solenoid valve is controlled to open while the first solenoid valve remains closed; and / or, in response to a third operation message from the user, the first solenoid valve or the second solenoid valve is controlled to close, thereby opening the first outlet.

[0011] In one embodiment, the control module is further configured to:

[0012] After a predetermined time has elapsed since the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, both the first and second solenoid valves are controlled to open; wherein the fourth operation message is used to control the opening of the first and second solenoid valves; and / or, within a predetermined time since the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, the first or second solenoid valve is kept open or the first and second solenoid valves are kept closed; wherein the fourth operation message is used to control the opening of the first and second solenoid valves.

[0013] In one embodiment, the at least two solenoid valves include a first solenoid valve and a second solenoid valve, and the control module is further configured to:

[0014] After a predetermined time has elapsed since the control module receives power from the hydroelectric generator, when the second solenoid valve is in the open state, in response to the user's first operation information, the control module controls the first solenoid valve to open and then maintains the open state of the second solenoid valve; and when the first solenoid valve is in the open state, in response to the user's second operation information, the control module controls the second solenoid valve to open and then maintains the open state of the first solenoid valve.

[0015] An embodiment of this application also provides a water circuit switching device, including a switching valve and the control module described above;

[0016] The switching valve includes a valve body, a valve stem, and at least two solenoid valves. The valve body has an inlet, a first outlet, and at least two second outlets. The valve stem is configured to control the opening and closing of the first outlet, and each solenoid valve is configured to control the opening and closing of one of the second outlets. The valve body has an inlet chamber communicating with the inlet, and the valve stem is movably located within the inlet chamber. When both second outlets are closed, the valve stem can move to the position of opening the first outlet under the inlet pressure of the inlet chamber. When at least one second outlet is open, the valve stem can move to the position of closing the first outlet under the inlet pressure of the inlet chamber.

[0017] In one embodiment, the water inlet chamber is connected to a first channel communicating with the first water outlet and a second channel communicating with the at least two second water outlets;

[0018] The valve stem has a first blocking part for blocking the first channel and a second blocking part for blocking the second channel, wherein the cross-section of the first blocking part is smaller than the cross-section of the second blocking part. When both second outlets are closed, the water in the inlet chamber pushes the first blocking part to move the valve stem to the position of opening the first outlet. When at least one second outlet is open, the water in the inlet chamber pushes the second blocking part to move the valve stem to the position of closing the first outlet, and the water in the inlet chamber can flow from the second blocking part and the inner wall of the second channel to the second outlet.

[0019] An embodiment of this application also provides a water outlet device, including a water outlet body and a water path switching device as described above. The water outlet body is provided with at least three water distribution chambers, and each water distribution chamber is provided with a corresponding water spray nozzle. The first water outlet and at least two second water outlets of the switching valve are respectively connected to one of the water distribution chambers to supply water to one of the water distribution chambers, thereby enabling the water outlet device to outlet water in at least three water outlet modes.

[0020] In one embodiment, the system further includes a hydroelectric generator installed in the main body of the water outlet. The hydroelectric generator is used to supply power to the control module and the switching valve. The hydroelectric generator includes a housing and an impeller, a stator, and a rotor installed in the housing. The housing has a first cavity and a second cavity. The stator and the rotor are installed in the second cavity, and the impeller is installed in the first cavity and connected to the rotor.

[0021] The housing includes a housing body and a water inlet cover located at the water inlet end of the first cavity. A conical protrusion is provided on the outer side of the water inlet cover, and a plurality of water inlet holes inclined relative to the center line are provided around the conical protrusion. The plurality of water inlet holes are inclined in the same direction in the circumferential direction. Water enters the first cavity through the water inlet holes and drives the impeller to rotate.

[0022] In one embodiment, the inclination angle of the water inlet relative to the centerline is 50-70°.

[0023] In one embodiment, each blade of the impeller is bent and extended in a direction away from the center to form an arc-shaped structure, wherein a water-blocking rib is provided at the end of the concave side of the blade.

[0024] In one embodiment, the impeller includes a central connecting portion and a plurality of blades surrounding the central connecting portion. A circular connecting seat is also provided around the central connecting portion, the circular connecting seat connecting the root positions of the plurality of blades near the central connecting portion, and the diameter of the circular connecting seat gradually decreases in the direction toward the water inlet cover.

[0025] In one embodiment, the wire diameter of the coil on the stator coil is 0.1-0.12mm, and the number of turns of the coil is 900-1000.

[0026] In one embodiment, the water outlet device is a shower head or an overhead sprayer;

[0027] When the water outlet device is a shower head, the water generator is located at the handle of the shower head.

[0028] An embodiment of this application also provides a shower head, including a water outlet body and a switching valve, a hydroelectric generator, and a control module disposed on the water outlet body. The hydroelectric generator is electrically connected to the control module and the switching valve. The water outlet body is provided with at least two water distribution chambers, each water distribution chamber corresponding to a spray nozzle. The switching valve includes a valve body having at least two water outlets and at least two solenoid valves, each solenoid valve corresponding to one water outlet to control the opening and closing of the corresponding water outlet. Each water outlet is connected to one of the water distribution chambers to supply water to the water distribution chamber. The control module is configured as follows:

[0029] In response to a user's first operation information, a solenoid valve is controlled to operate and other solenoid valves except for that solenoid valve are stopped to open the shower water corresponding to that solenoid valve; wherein, the first operation information is used to control the solenoid valve to open.

[0030] In response to a second operation message from the user, another solenoid valve is controlled to operate and other solenoid valves are controlled to stop operating in order to open the shower water corresponding to the other solenoid valve; wherein, the second operation message is used to control the other solenoid valve to open.

[0031] In one embodiment, the switching valve includes two solenoid valves, and the control module is further configured to:

[0032] After a predetermined time has elapsed since the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, both solenoid valves are controlled to open; wherein the fourth operation message is used to control the two solenoid valves to open; and / or, within a predetermined time since the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, one of the two solenoid valves is kept open or both solenoid valves are kept closed; wherein the fourth operation message is used to control the two solenoid valves to open.

[0033] In one embodiment, the water outlet body includes a handheld part and a water outlet part, the hydroelectric generator is disposed on the handheld part, and the switching valve is disposed on the water outlet part.

[0034] In one embodiment, the hydroelectric generator includes a power generation module and a water inlet cover. The power generation module is connected to an impeller to convert the rotation of the impeller into electrical energy. The water inlet cover is located upstream of the impeller and has a conical protrusion facing upstream and a plurality of water inlet holes inclined relative to a center line around the conical protrusion. The plurality of water inlet holes are inclined in the same direction in the circumferential direction, and water enters from the water inlet holes and drives the impeller to rotate.

[0035] In one embodiment, the inclination angle of the water inlet relative to the centerline is 50-70°.

[0036] In one embodiment, the valve body is provided with an inlet chamber communicating with the inlet channel of the water outlet body, and a movable valve stem is provided in the inlet chamber; the at least two outlets of the valve body include a first outlet and at least two second outlets, each solenoid valve is provided with one second outlet, when all the second outlets are closed, the valve stem can move to the position of opening the first outlet under the action of the inlet pressure of the inlet chamber, and when at least one second outlet is open, the valve stem can move to the position of closing the first outlet under the action of the inlet pressure of the inlet chamber.

[0037] An embodiment of this application provides a control module applied to a switching valve equipped with at least two solenoid valves and a water outlet device of a hydroelectric generator. The switching valve provides at least three water outlet modes for the water outlet device. The control module controls one solenoid valve corresponding to the user's operation information to open. In this way, when the water outlet device is first connected to water, only one solenoid valve is allowed to be open. This avoids the problem of the water outlet mode being unable to switch due to insufficient power generation from the hydroelectric generator when two or more solenoid valves are open. That is, in this way, when the user switches the water outlet mode when the water outlet device is first connected to water, there will be no problem that the water outlet device will not respond to the user's switching action and switch to different water outlet modes.

[0038] An embodiment of this application provides a shower head, which includes a water-powered generator, a switching valve, and a control module. The control module controls the solenoid valve corresponding to the user's first operation information to operate, while keeping other solenoid valves in a stopped state. Similarly, the control module controls another solenoid valve corresponding to the user's second operation information to operate, while keeping other solenoid valves in a stopped state. In this way, when a shower head with multiple solenoid valves controlling the water flow mode is initially turned on, only one solenoid valve is allowed to open, preventing two or more solenoid valves from being open simultaneously. Therefore, during the initial period after the shower head is turned on, the problem of the shower head not responding to the user's switching action and switching to different water flow modes will not occur when the user switches water flow modes.

[0039] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0040] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0041] Figure 1 This is a schematic diagram of the structure of a shower head according to one embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the installation structure of the water path switching device on the shower head according to one embodiment of this application;

[0043] Figure 3 for Figure 1 The diagram shown is a structural schematic of a shower head in a disassembled state.

[0044] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the shower head.

[0045] Figure 5 for Figure 1 The diagram shows a shower head cut across from another location.

[0046] Figure 6 This is a schematic diagram of a switching valve installed on the water distribution body of a shower head according to one embodiment of this application;

[0047] Figure 7 for Figure 6 The diagram shown is a cross-section of the structure from the valve stem.

[0048] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0049] Figure 9 for Figure 6 The diagram shown is a cross-section of the structure from the first solenoid valve.

[0050] Figure 10 for Figure 6 The diagram shown is a cross-section of the structure from the second solenoid valve.

[0051] Figure 11 This is a schematic diagram of the structure of a hydroelectric generator according to one embodiment of this application;

[0052] Figure 12 for Figure 11 A cross-sectional view of the hydroelectric generator shown;

[0053] Figure 13 for Figure 11 The hydroelectric generator shown is a cross-sectional view taken from another location;

[0054] Figure 14 This is a schematic diagram of the structure of the water inlet cover according to one embodiment of this application;

[0055] Figure 15 This is a schematic diagram of the impeller structure according to one embodiment of this application;

[0056] Figure 16 This is a schematic diagram of the control module according to one embodiment of the present application;

[0057] Figure 17 This is a flowchart illustrating a waterway switching method according to one embodiment of this application;

[0058] Figure 18 This is a flowchart illustrating a waterway switching method according to another embodiment of this application;

[0059] Figure 19 This is a schematic diagram of a waterway switching procedure according to one embodiment of this application;

[0060] Figure 20 This is a schematic diagram of a waterway switching procedure according to another embodiment of this application.

[0061] Explanation of reference numerals in the attached figures:

[0062] 1-Shower head body; 11-Installation body; 12-Fixing cover; 13-Water distribution body; 14-Water outlet sleeve; 15-Water outlet surface cover; 16-Water outlet core; 2-Switching valve; 21-Valve body body; 22-Valve cover; 23-Water outlet connector; 24-Bushing; 25-Valve stem; 251-First sealing part; 252-Second sealing part; 253-Connecting part; 26-Sealing ring; 27-First solenoid valve; 28-Second solenoid valve; 3-Capacitor; 4-Circuit board; 5-Control panel; 51-First button; 52-Second button; 53- - Third button; 6- Water inlet pipe; 7- Hydroelectric generator; 71- Main body of the casing; 711- First casing section; 712- Second casing section; 713- Water outlet; 72- Water inlet cover; 721- Conical protrusion; 722- Water inlet hole; 7221- Inclined surface; 73- Impeller; 731- Intermediate connecting part; 732- Blade; 7321- Water-blocking rib; 733- Circular connecting seat; 74- Stator; 8- Water inlet connector; 101- First water outlet; 102- Second water outlet; 103- Water inlet; 104- Water inlet chamber. 10- Control module; 20- Processor; 30- Memory; 40- Water circuit switching program; 50- Information receiving unit; 60- First operating unit; 70- Second operating unit; 80- Third operating unit. Detailed Implementation

[0063] This application describes several embodiments, but these descriptions are exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0064] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

[0065] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0066] An embodiment of this application provides a control module 10 for a water outlet device, the water outlet device including a switching valve 2, the control module 10 and a hydroelectric generator 7, the hydroelectric generator 7 being used to supply power to the control module 10 and the switching valve 2.

[0067] like Figures 2-10 As shown, the switching valve 2 includes a valve body, a valve stem 25, and at least two solenoid valves. The valve body has an inlet 103, a first outlet 101, and at least two second outlets 102. The valve stem 25 is configured to control the opening and closing of the first outlet 101, and each solenoid valve is configured to control the opening and closing of one second outlet 102. The valve body is provided with an inlet chamber 104 communicating with the inlet 103, and the valve stem 25 is configured to be movably located within the inlet chamber 104. When all the second outlets 102 are closed, the valve stem 25 can move to the position of opening the first outlet 101 under the action of the inlet pressure of the inlet chamber 104. When at least one outlet 102 is open, the valve stem 25 can move to the position of closing the first outlet 101 under the action of the inlet pressure of the inlet chamber 104.

[0068] like Figure 17As shown, the control module 10 is configured to: receive user operation information; the operation information is used to control the opening and closing of one of the at least two solenoid valves; in response to the operation information, control one of the solenoid valves corresponding to the operation information to open, so that the second outlet 102 corresponding to the solenoid valve opens.

[0069] The control module 10 provided in the embodiments of this application is applied to a water outlet device consisting of a switching valve 2 equipped with at least two solenoid valves and a hydroelectric generator 7. The switching valve 2 provides at least three water outlet modes for the water outlet device. The control module 10 controls one of the solenoid valves corresponding to the user's operation information to open. In this way, when the water outlet device is first connected to water, only one solenoid valve is allowed to be open. This avoids the situation where the water outlet mode cannot be switched due to insufficient power generation from the hydroelectric generator caused by using two or more solenoid valves. That is, in this way, when the user switches the water outlet mode when the water outlet device is first connected to water, there will be no problem where the water outlet device does not respond to the user's switching action and switch to different water outlet modes.

[0070] In one embodiment, the at least two solenoid valves include a first solenoid valve 27 and a second solenoid valve 28, and the control module 10 is further configured to:

[0071] In response to the user's first operation information, the first solenoid valve 27 is opened while the second solenoid valve 28 is kept closed, thereby opening the second outlet 102 corresponding to the first solenoid valve 27.

[0072] In response to a second operation message from the user, the second solenoid valve 28 is controlled to open while the first solenoid valve 27 remains closed, thereby opening another second outlet 102 corresponding to the second solenoid valve 28; and / or when the first solenoid valve 27 or the second solenoid valve 28 is open, in response to a third operation message from the user, the first solenoid valve 27 or the second solenoid valve 28 is controlled to close, thereby opening the first outlet 101.

[0073] In one embodiment, the control module 10 is further configured to:

[0074] Within a predetermined timeframe after the control module 10 receives power from the hydroelectric generator 7, in response to the user's fourth operation message, it maintains either the open state of the first solenoid valve 27 or the second solenoid valve 28, or maintains the closed state of both solenoid valves 27 and 28. The fourth operation message is used to control the opening of the first solenoid valve 27 and the second solenoid valve 28. In other words, even if the user issues a fourth operation message to open both solenoid valves within the predetermined timeframe after the control module 10 receives power from the hydroelectric generator 7, the control module 10 will still control the first solenoid valve 27 and the second solenoid valve 28 to remain in their original states, preventing a situation where both solenoid valves 27 and 28 open simultaneously.

[0075] After a predetermined time has elapsed since the control module 10 receives power from the hydroelectric generator 7, in response to a fourth operation message from the user, both the first solenoid valve 27 and the second solenoid valve 28 are opened, thereby simultaneously opening the two second water outlets 102; wherein, the fourth operation message is used to control the opening of the first solenoid valve 27 and the second solenoid valve 28. After the predetermined time has elapsed since the hydroelectric generator 7 receives power, the water pressure stabilizes, and the power output of the hydroelectric generator is sufficient to allow the first solenoid valve 27 and the second solenoid valve 28 to open simultaneously.

[0076] In one embodiment, the at least two solenoid valves include a first solenoid valve 27 and a second solenoid valve 28, and the control module 10 is further configured to:

[0077] After a predetermined time has elapsed since the control module 10 receives power from the hydroelectric generator 7, when the second solenoid valve 28 is in the open state, in response to the user's first operation information, the control module 10 controls the first solenoid valve 27 to open and maintains the open state of the second solenoid valve 28; and when the first solenoid valve 27 is in the open state, in response to the user's second operation information, the control module 10 controls the second solenoid valve 28 to open and maintains the open state of the first solenoid valve 27.

[0078] With the second solenoid valve 28 in the open state, if only the second outlet 102 corresponding to the first solenoid valve 27 needs to output water, the second solenoid valve 28 can be closed first, and then the first operation message can be sent to open the first solenoid valve 27. Similarly, with the first solenoid valve 27 open, if only the second outlet 102 corresponding to the second solenoid valve 28 needs to output water, the first solenoid valve 27 can be closed first, and then the second operation message can be sent.

[0079] Figures 2-10 This illustration shows a water outlet device, which is a showerhead, and includes a switching valve 2. The switching valve 2 has a water inlet 103 and an inlet chamber 104 communicating with the water inlet 103, as well as a first water inlet 101 and two second water outlets 102. Figure 7 and Figure 8 This shows that the valve stem 25 is located in the water inlet chamber 104, and its movement can control the opening and closing of the first water inlet 101. Figure 9 The diagram shows that a first solenoid valve 27 is installed on the water line corresponding to one of the second outlets 102, thereby controlling the opening and closing of the second outlet 102. Figure 10 The diagram shows a second solenoid valve 28 installed on the water path corresponding to another second outlet 102, thereby enabling the opening and closing of that second outlet 102. In other embodiments, more second outlets 102 and corresponding solenoid valves may be provided.

[0080] To facilitate the formation of water channels inside the valve body, such as Figures 3-5 As shown, the valve body may include a valve body 21, a valve cover 22, and a water outlet connector 23 fixed together. The valve cover 22 has two cavities, which correspond to two second water outlets 102 respectively. The cavity in the water outlet connector 23 corresponds to the first water outlet 101. Of course, the structure of the valve body can be modified in various ways, which are not limited here.

[0081] The inlet chamber 104 is connected to a first channel communicating with the first outlet 101 and a second channel communicating with the at least two second outlets 102. Figure 5 The channels at both ends of the inlet chamber 104 are the first channel and the second channel, respectively. The valve stem 25 has a first sealing part 251 for sealing the first channel, a second sealing part 252 for sealing the second channel, and a connecting part 253 connecting the first sealing part 251 and the second sealing part 252. The cross-section of the first sealing part 251 is smaller than the cross-section of the second sealing part 252. When both outlets 102 are closed, the side of the second sealing part 252 facing the second outlet 102 is sealed. If water enters the inlet chamber 104 from the inlet 103, the water in the inlet chamber 104 can only push... The first sealing part 251 moves away from the second sealing part 252, thereby moving the valve stem 25 to the position of opening the first outlet 101. The second sealing part 252 is configured to depressurize the chamber on the side of the second outlet 102 when at least one second outlet 102 is opened. The water in the inlet chamber 104 pushes the second sealing part 252 away from the first sealing part 251, and the valve stem 25 moves to the position of closing the first outlet 101. The water in the inlet chamber 104 can flow from the second sealing part 252 and the inner wall of the second channel to the second outlet 102.

[0082] Among them, a Y-shaped sealing ring 26 is provided between the second sealing part 252 and the inner wall of the second channel. According to the structure of the Y-shaped sealing ring, the water in the water inlet chamber 104 can flow from the gap between the sealing ring 26 and the inner wall of the second channel to the second outlet 102, but the water flow cannot flow in the opposite direction from the sealing ring 26 to the water inlet chamber 104.

[0083] Figure 5 The image shows the state of the second outlet 102 corresponding to the opening of the second solenoid valve 28. The water pressure in the inlet chamber 104 pushes the second sealing part 252 of the valve stem 25 to move away from the first sealing part 251. The first sealing part 251 moves with the second sealing part 252 to abut against the bushing 24 in the first channel and block the first channel, thereby closing the first outlet 101. The water in the inlet chamber flows from the gap between the sealing ring 26 of the second sealing part 252 and the inner wall of the second channel to the opened second outlet 102.

[0084] Figure 7 and Figure 8 The diagram shows that when both second outlets 102 are closed, the first sealing part 251 of the valve stem 25 is pushed away from the bushing 24 in the first channel by the water pressure in the inlet chamber 104, thus opening the first channel and opening the first outlet 101.

[0085] An embodiment of this application also provides a water circuit switching device, including a switching valve 2 and a control module 10 as described above.

[0086] Switching valve 2 can be adopted as follows Figures 2-10 The structure shown includes a switching valve 2 comprising a valve body, a valve stem 25, and at least two solenoid valves. The valve body has an inlet 103, a first outlet 101, and at least two second outlets 102. The valve stem 25 is configured to control the opening and closing of the first outlet 101, and each solenoid valve is configured to control the opening and closing of one second outlet 102. The valve body is provided with an inlet chamber 104 communicating with the inlet 103, and the valve stem 25 is movably located within the inlet chamber 104. When all the second outlets 102 are closed, the valve stem 25 can move to the position of opening the first outlet 101 under the action of the inlet pressure of the inlet chamber 104. When at least one outlet 102 is open, the valve stem 25 can move to the position of closing the first outlet 101 under the action of the inlet pressure of the chamber 104.

[0087] exist Figures 2-10 In the example, the inlet chamber 104 is connected to a first channel communicating with the first outlet 101 and a second channel communicating with the at least two second outlets 102; the valve stem 25 has a first sealing part 251 for sealing the first channel, a second sealing part 252 for sealing the second channel, and a connecting part 253 connecting the first sealing part 251 and the second sealing part 252, wherein the cross-section of the first sealing part 251 is smaller than the cross-section of the second sealing part 252. When all the second outlets 102 are closed, the side of the second sealing part 252 facing the second outlet 102 is sealed. If water enters the inlet chamber 104 from the inlet 103, the inlet... The water in the water chamber 104 can only push the first sealing part 251 to move away from the second sealing part 252, so that the valve stem 25 moves to the position of opening the first outlet 101. The second sealing part 252 is configured to depressurize the chamber on the side of the second outlet 102 when at least one second outlet 102 is opened. The water in the water inlet chamber 104 pushes the second sealing part 252 to move away from the first sealing part 251, and the valve stem 25 moves to the position of closing the first outlet 101. The water in the water inlet chamber 104 can flow from the second sealing part 252 and the inner wall of the second channel to the second outlet 102.

[0088] An embodiment of this application provides a water outlet device, including a water outlet body 1 and a water path switching device as described above installed on the water outlet body 1; wherein, the water outlet body 1 is provided with at least three water distribution chambers, each water distribution chamber is provided with a corresponding water spray nozzle, wherein the first water outlet 101 and at least two second water outlets 102 of the switching valve 2 are respectively connected to one water distribution chamber to supply water to one water distribution chamber respectively, thereby enabling the water outlet device to outlet water in at least three water outlet modes.

[0089] exist Figures 1-5 In the embodiment, the water outlet device is a shower head. Of course, the water outlet device can also be other devices that can dispense water, such as a faucet or an overhead shower.

[0090] like Figure 3 and Figure 4 As shown, the water outlet body 1 includes an installation body 11, a water distribution body 13 fixed to the installation body 11, and a fixing cover 12 fixed to the water distribution body 13. The water distribution body 13 and the fixing cover 12 serve as partitioning components, dividing the water outlet body 1 to form three different water distribution chambers. The specific arrangement of the water distribution chambers is not described in detail here. The water outlet body 1 also includes a water outlet component, which may include a water outlet sleeve 14, a water outlet cover 15, and a water outlet core 16 installed on the water outlet cover 15. The water outlet sleeve 14 has multiple water outlets, multiple openings around the water outlet cover 15, and the water outlet core 16 is connected to a water distribution chamber, so that the water outlet device has three water outlet modes: all water outlets of the multiple water outlets of the water outlet sleeve 14, water outlets around the water outlet cover 15, and water outlet core 16 (that is, the water outlets of the water outlet sleeve 14, the openings of the water outlet cover 15, and the water outlet core 16 are each spray nozzles of a water distribution chamber). The first water outlet 101 and the two second water outlets 102 each supply water to a water distribution chamber. In this way, by controlling the opening and closing of the three water outlets, it is possible to control whether water is supplied to the three water distribution chambers of the water outlet body 1, thereby controlling the water outlet mode of the water outlet device. Understandably, in other embodiments, the outlet of one solenoid valve may correspond to two or more water distribution chambers, and one water distribution chamber is connected to a type of water outlet to provide a shower spray.

[0091] In one embodiment, the water outlet device includes a hydroelectric generator 7 installed on the water inlet channel of the water outlet body 1, which powers the switching valve 2 and control module 10 in the water circuit switching device. Powered by the hydroelectric generator 7, no battery is required, reducing limitations on product packaging, transportation, and storage environment.

[0092] refer to Figure 3 and Figure 4For example, the water outlet device is a shower head, the water inlet channel of the water outlet body 1 is a water inlet pipe 6 connected to the shower head, the water inlet pipe 6 is connected to a water inlet connector 8, and the water generator 7 is installed in the water inlet pipe 6. During the process of water flowing into the water inlet pipe 6, the water generator 7 can generate electricity using water power.

[0093] In one embodiment, the hydroelectric generator 7 is connected to a capacitor 3, which charges the capacitor 3 and supplies power to the solenoid valve and control module 10 in the switching valve 2 via the capacitor 3; wherein, the capacitor 3 can be installed on the valve body of the switching valve 2. Figure 3 and Figure 5 As shown, capacitor 3 can be installed in the valve body at the position between the two solenoid valves.

[0094] Capacitor 3 can stabilize voltage and filter, reduce power consumption, and enable rapid power-on under low water pressure. This allows the water outlet device to switch water circuits immediately even under low water pressure. After the water outlet device has not been used for a long time, there is no need to wait when it is used for the first time. The water circuit can be switched immediately after the water circuit is turned on.

[0095] In one example, the capacitance of capacitor 3 is 4000-8000μF. If the capacitance is less than this value, capacitor 3 is insufficient to power control module 10 and solenoid valve. If the capacitance is greater than this value, the time required for the hydroelectric generator to charge capacitor 3 will be longer. It will be unable to switch under low water pressure, or if it is not used for a long time, the first water supply will require a long wait.

[0096] like Figures 11-13 In the embodiment shown, the hydroelectric generator 7 includes: a housing and an impeller 73, a stator 74 and a rotor (not shown) installed in the housing. The housing has a first cavity and a second cavity. The stator 74 and the rotor are installed in the second cavity, and the impeller 73 is installed in the first cavity and connected to the rotor.

[0097] The housing includes a housing body 71 and a water inlet cover 72 located at the water inlet end of the first cavity. A conical protrusion 721 is provided on the outer side of the water inlet cover 72. Multiple water inlet holes 722 are provided around the conical protrusion 721, which are inclined relative to the center line (the center line of the hydroelectric generator). The multiple water inlet holes 722 are inclined in the same circumferential direction, so that when water enters the first cavity from the inclined water inlet holes 722, it rotates and flows, driving the impeller 73 to rotate. The impeller 73 drives the rotor to rotate, thereby generating electricity.

[0098] The housing body 71 may include a first housing portion 711 and a second housing portion 712. The first housing portion 711 cooperates with the water inlet cover 72 to form a first cavity, and the second housing portion 712 forms a second cavity. The first housing portion 711 has a water outlet 713. Water enters the first cavity from the water inlet cover 72, drives the impeller 73 to rotate, and then flows out from the water outlet 713.

[0099] By providing a conical protrusion 721 on the outer side of the inlet cover 72, the area of ​​the water flow impacting the surface at the inlet end of the housing can be reduced, thereby reducing the loss of hydraulic energy. This allows the water to enter the inlet hole 722 with greater impact force. After the water flows into the first water chamber from multiple inlet holes 722 at an angle, it forms a rotating water flow, which impacts the impeller 73 to rotate. In this way, the power generation of the hydroelectric generator can be effectively increased. When the hydroelectric generator is used for a shower, it enables the shower to generate high power even under low water pressure, achieving rapid power-on and thus solving the problem of insufficient power supply of hydroelectric generators in the prior art.

[0100] In one embodiment, the inclination angle α of the water inlet hole 722 on the water inlet cover 72 relative to the center line is 50-70°. This angle can generate the maximum impact force and the fastest impeller speed when the water pressure and flow conditions remain unchanged. When the angle is less than 50°, the water inlet hole causes the impeller 73 to have a downward vertical component force, which slows down the speed. When the angle is greater than 70°, the water-blocking surface of the impeller 73 is insufficient, resulting in fatal hydraulic energy loss and the impeller 73 speed slows down.

[0101] like Figure 11 and Figures 13-14 In the example shown, the water inlet cover 72 is provided with three water inlet holes 722, each water inlet hole 722 having a slope 7221, and water flows into the first cavity along the slope 7221. The slope 7221 determines the inclination angle α of the water inlet hole 722 relative to the axis of the impeller 73.

[0102] In one embodiment, the impeller 73 has the following structure: Figure 15 As shown, the impeller 73 includes a central connecting part 731 and a plurality of blades 732 surrounding the central connecting part 731. Each blade 732 of the impeller 73 is curved and extended in a direction away from the center to form an arc-shaped structure. A water-blocking rib 7321 is provided at the end of the concave side of the blade 732. The water-blocking rib 7321 can reduce the amount of water entering through the water inlet 722 that hits the blade and is discharged outward, thereby reducing hydraulic loss and increasing impact force.

[0103] In one embodiment, the impeller 73 further includes a circular connecting seat 733 disposed around the intermediate connecting portion 731. The circular connecting seat 733 connects the root positions of multiple blades 732 near the intermediate connecting portion 731, and the diameter of the circular connecting seat 733 gradually decreases in the direction toward the water inlet cover 72. The circular connecting seat 733 disposed at the root position of the impeller 73 can reinforce the blades 732 and prevent the blades 732 from being deformed by water impact. The space between adjacent blades 732 away from the circular connecting seat 733 is hollowed out to facilitate drainage after oblique water impacts the impeller 73, reducing the possibility of water flow accumulation between the blades 732 and affecting the rotation of the impeller 73. The diameter of the circular connecting seat 733 gradually decreases in the direction toward the water inlet cover 72, which facilitates the water flow to slide down the surface after impacting the circular connecting seat 733 and flow out through the hollowed-out space between the blades.

[0104] In one embodiment, the coil on the stator 74 has a wire diameter of 0.1-0.12 mm and a number of turns of 900-1000. This data allows for the generation of the maximum voltage and current within the same housing space, under the same water pressure and flow rate. When the wire diameter is less than 0.1-0.12 mm and the number of turns is greater than 900-1000, the generated voltage increases but the current decreases. Conversely, when the wire diameter is greater than 0.1-0.12 mm and the number of turns is less than 900-1000, the generated voltage decreases but the current increases.

[0105] In the embodiments of this application, by improving the structure of the water inlet cover 72 and the impeller 73 and setting the parameters of the coil on the stator 74, the power generation of the hydroelectric generator can be effectively increased.

[0106] In one embodiment, the control module 10 may include a circuit board 4 and a control panel 5 connected to the circuit board 4. The control panel 5 may have multiple buttons, and the user can input operation information to the control module 10 through the buttons to control the solenoid valve. In other embodiments, the buttons may be touch-sensitive buttons.

[0107] like Figures 1-3 In the example, control module 10 is installed on the showerhead, and control panel 5 is located in a conveniently accessible part of the showerhead. Control panel 5 has a first button 51, a second button 52, and a third button 53. When the user performs a first operation, pressing the first button 51 opens the first solenoid valve 27; pressing the second button 52 opens the second solenoid valve 28; and pressing the third button 53 closes all solenoid valves. Of course, more buttons can be added to allow for additional operations.

[0108] In addition, each button can be equipped with an indicator light. When a button is in the open position, the corresponding indicator light illuminates, and when the button is closed, the corresponding indicator light turns off. This allows users to clearly know which button is active.

[0109] Of course, the control module 10 can also be configured with other user operation methods, such as using a knob for operation and control.

[0110] An embodiment of this application also provides a shower head, including a water outlet body 1, a switching valve 2, a hydroelectric generator 7, and a control module 10 disposed on the water outlet body 1. The hydroelectric generator 7 is electrically connected to the control module 10 and the switching valve 2. The water outlet body 1 is provided with at least two water distribution chambers, each water distribution chamber corresponding to a spray nozzle. The switching valve 2 includes a valve body with at least two water outlets and at least two solenoid valves, each solenoid valve corresponding to one water outlet to control the opening and closing of the corresponding water outlet. Each water outlet is connected to one water distribution chamber to supply water to the water distribution chamber. The control module 10 is configured as follows:

[0111] In response to a user's first operation information, a solenoid valve is controlled to operate and other solenoid valves except for that solenoid valve are stopped to open the shower water corresponding to that solenoid valve; wherein, the first operation information is used to control the solenoid valve to open.

[0112] In response to a second operation message from the user, another solenoid valve is controlled to operate and other solenoid valves are controlled to stop operating in order to open the shower water corresponding to the other solenoid valve; wherein, the second operation message is used to control the other solenoid valve to open.

[0113] In one embodiment, the switching valve includes two solenoid valves, and the control module 10 is further configured to:

[0114] After a predetermined time has elapsed since the control module 10 receives power from the hydroelectric generator 7, in response to a fourth operation message from the user, both solenoid valves are controlled to open; wherein the fourth operation message is used to control the two solenoid valves to open; and / or within a predetermined time since the control module 10 receives power from the hydroelectric generator 7, in response to a fourth operation message from the user, one of the two solenoid valves is kept open or both solenoid valves are kept closed; wherein the fourth operation message is used to control the two solenoid valves to open.

[0115] In one embodiment, the water outlet body 1 includes a handheld part and a water outlet part (i.e., a shower head). The water generator 7 is installed on the handheld part, and a water inlet channel is provided inside the handheld part. During the process of water entering through the water inlet channel, the water generator 7 generates electricity under the action of water. The switching valve 2 is installed on the water outlet part.

[0116] In one embodiment, the showerhead further includes a hydroelectric generator 7 mounted on the water inlet channel of the handheld part. The hydroelectric generator 7 supplies power to the solenoid valve and the control module 10. The hydroelectric generator 7 includes a power generation module with a rotor and a stator, and a water inlet cover 72. The power generation module is connected to an impeller 73 to convert the rotation of the impeller 73 into electrical energy. The water inlet cover 72 is disposed upstream of the impeller 73 and has a conical protrusion 721 protruding upstream and a plurality of water inlet holes 722 inclined relative to a center line around the conical protrusion 721. The plurality of water inlet holes 722 are inclined in the same direction in the circumferential direction. Water enters from the water inlet holes 722 and drives the impeller 73 to rotate. In one example, the inclination angle of the water inlet holes 722 relative to the center line is 50-70°.

[0117] In one embodiment, the valve body of the switching valve 2 is provided with an inlet chamber 104 communicating with the inlet channel of the water outlet body 1, and a movable valve stem 25 is provided in the inlet chamber; the valve body has at least two outlets including a first outlet 101 and at least two second outlets 102, each solenoid valve is provided with one second outlet 102, when all the second outlets 102 are closed, the valve stem 25 can move to the position of opening the first outlet 101 under the action of the inlet pressure of the inlet chamber, and when at least one second outlet 102 is open, the valve stem 25 can move to the position of closing the first outlet 101 under the action of the inlet pressure of the inlet chamber.

[0118] In one embodiment, the control module 10 is applied to the aforementioned switching valve 2, water outlet device, shower head, and / or overhead shower. This application uses application to a shower head as an example; in other embodiments, the control module 10 can also be applied to water outlet devices such as overhead showers and faucets. For example, refer to... Figure 16 The control module 10 includes a processor 20 and a memory 30. The memory 30 stores a waterway switching program 40. When the processor 20 executes the waterway switching program 40, it implements a waterway switching method, such as... Figure 17 As shown, the waterway switching method includes:

[0119] S100, Receive user operation information; the operation information is used to control the opening and closing of one of the at least two solenoid valves. Exemplarily, this operation information is a signal triggered by the user operating one of the first button 51, the second button 52, and the third button 53 on the control panel. In this embodiment, each triggering action triggers one operation information; the operation of the first button 51 triggers the generation of first operation information, the operation of the second button 52 triggers the generation of second operation information, and the operation of the third button 53 triggers the generation of third operation information. The first and second operation information are each used to control only one solenoid valve to operate, causing the shower head to switch to the water outlet mode corresponding to the triggered button. The third operation information is used to control both solenoid valves to stop operating.

[0120] S200, in response to the operation information, the control device controls the opening of a solenoid valve corresponding to the operation information, so that the second water outlet 102 corresponding to the solenoid valve opens. The control device controls the solenoid valve corresponding to the received operation information to operate, so that the water path corresponding to the solenoid valve opens. In this embodiment, taking the switching valve 2 with valve stem 25 as an example, when the solenoid valve is not controlled to operate, the valve stem 25 is in the position where the first water outlet 101 is open. When the control device controls the opening of a solenoid valve according to an operation information, the valve stem 25 moves to the position where the first water outlet 101 is closed under the water pressure of the water chamber 104. At this time, the shower head sprays water in the water outlet mode corresponding to the opened solenoid valve.

[0121] In one embodiment, the shower head may further include a water distribution chamber connected to its inlet 103, the water distribution chamber being in communication with the inlet 103. When the control device controls a solenoid valve to open, the water distribution chamber corresponding to the solenoid valve simultaneously connects to the inlet 103, that is, by controlling the operation of a solenoid valve, two different water spray patterns can be achieved. It is understood that in this embodiment, the shower head may not be equipped with the aforementioned valve stem 25.

[0122] Through steps S100 and S200, when the shower head is just turned on with water, only one solenoid valve is allowed to be open in response to the user's operation. This avoids the problem of not being able to switch water outlet modes due to insufficient power generation from the hydroelectric generator when two or more solenoid valves are opened. In other words, this method ensures that when the user switches water outlet modes when the water outlet device is just turned on with water, the water outlet device will not respond to the user's switching action and switch to different water outlet modes.

[0123] In one embodiment, reference is made to... Figure 18 The waterway switching method, when executed by the processor 20, further includes:

[0124] S300, in response to the user's first operation information, controls a solenoid valve to work and stops other solenoid valves from working to open the shower water corresponding to the solenoid valve; wherein, the first operation information is used to control the solenoid valve to open, and the first operation information is the operation information triggered by the user operating the first button 51.

[0125] S400, in response to the user's second operation information, controls another solenoid valve to work and controls other solenoid valves other than the other solenoid valve to stop working so as to open the shower water corresponding to the other solenoid valve; the second operation information is used to control the other solenoid valve to open, and the second operation information is the operation information triggered when the user operates the second button 52.

[0126] Unlike step S200, in step S200, a user operation controls the corresponding solenoid valve to open, while the other solenoid valves can be closed by other user trigger actions. In steps S300 and S400, during the stage when the water pressure is not yet stable, when responding to a user trigger action to control one solenoid valve to open, it simultaneously controls the other solenoid valves to close. Therefore, the solution in this embodiment will avoid the problem of insufficient power supply causing the solenoid valves to close due to insufficient power supply when two solenoid valves need to be opened to work simultaneously, even if the user operates different buttons. In the solution with program modules that implement steps S200, S300, and S400, there is no sequential relationship between steps S200, S300, and S400.

[0127] In one embodiment, the waterway switching method implemented when the waterway switching program 40 is executed by the processor 20 may further include:

[0128] S500, after a predetermined time has elapsed since the control module 10 receives power from the hydroelectric generator, in response to the user's fourth operation information, the first solenoid valve and the second solenoid valve are both opened; wherein, the fourth operation information is used to control the first solenoid valve and the second solenoid valve to open; after the predetermined time has elapsed since the hydroelectric generator 7 receives power, the water pressure is stable, and the hydroelectric generator 7 can generate sufficient power, so that the first solenoid valve and the second solenoid valve can open simultaneously.

[0129] During a predetermined time when the control module 10 receives power from the hydroelectric generator, in response to a fourth operation message from the user, it maintains either the first or second solenoid valve in an open state or maintains both the first and second solenoid valves in a closed state; wherein, the fourth operation message is used to control the first and second solenoid valves to open. During the predetermined time when the hydroelectric generator receives power, the water pressure is unstable, and the power generated by the hydroelectric generator 7 is insufficient. Therefore, when the user triggers the fourth operation message, the first and second solenoid valves remain in their original states.

[0130] In one embodiment, the waterway switching method implemented when the waterway switching program 40 is executed by the processor 20 may further include:

[0131] S600, after a predetermined time following the control module 10 receiving power from the hydroelectric generator 7, when the second solenoid valve 28 is in the open state, in response to the user's first operation information, controls the first solenoid valve 27 to open and maintains the open state of the second solenoid valve 28; and when the first solenoid valve 27 is in the open state, in response to the user's second operation information, controls the second solenoid valve 28 to open and maintains the open state of the first solenoid valve 27.

[0132] In other words, after the predetermined time when the hydroelectric generator 7 is energized, the water pressure stabilizes, and the hydroelectric generator 7 can generate enough electricity, so that the first solenoid valve and the second solenoid valve can open simultaneously.

[0133] Embodiments of this application also provide a control module 10, which is applied to the aforementioned switching valve 2, water outlet device, shower head, and / or overhead spray. This application uses application to a shower head as an example; in other embodiments, the control module 10 can also be applied to water outlet devices such as overhead sprays and faucets. Exemplarily, the control module 10 includes a processor 20 and a memory 30, the memory 30 storing a water path switching program 40. This water path switching program 40 can be divided into multiple devices, modules, or units, and the resulting multiple devices, modules, or units can be executed by the processor 20 to implement the steps of the intelligent toilet control method described above.

[0134] For example, such as Figure 19 As shown, the water circuit switching program 40 can be divided into an information receiving unit 50 and a control unit. The information receiving unit 50 is used to receive user operation information; the operation information is used to control the opening and closing of one of the at least two solenoid valves. For example, the operation information is a signal triggered by the user operating one of the first button 51, the second button 52, and the third button 53 on the control panel. In this embodiment, each triggering action triggers one operation information; the operation of the first button 51 triggers the generation of first operation information, the operation of the second button 52 triggers the generation of second operation information, and the operation of the third button 53 triggers the generation of third operation information. The first and second operation information are each used to control only one solenoid valve to operate, causing the shower head to switch to the water outlet mode corresponding to the triggered button. The third operation information is used to control both solenoid valves to stop operating.

[0135] The control unit 50 includes a first operation unit 60, which, in response to the operation information, controls the corresponding solenoid valve to open, thereby opening a second water outlet corresponding to the solenoid valve. The control device, based on the received operation information generated for triggering, controls the solenoid valve corresponding to the operation information to operate, thereby opening the water passage corresponding to the solenoid valve. In this embodiment, taking the switching valve 2 with valve stem 25 as an example, when the solenoid valve is not controlled to operate, the valve stem 25 is at the position of the first water outlet 101. When the control device controls the solenoid valve to open according to an operation information, the valve stem 25 moves to the position of closing the first water outlet under the water pressure of the water chamber 104. At this time, the shower head only sprays the water outlet mode corresponding to the opened solenoid valve.

[0136] In one embodiment, the shower head includes a water distribution chamber connected to its inlet 103, which remains in communication with the inlet 103. When the control device controls a solenoid valve to open, the water distribution chamber corresponding to the solenoid valve simultaneously connects to the inlet 103. That is, by controlling the operation of a solenoid valve, two different water spray patterns can be achieved. It is understood that in this embodiment, the shower head may not be equipped with the aforementioned valve stem 25.

[0137] In one embodiment, such as Figure 20 As shown, the control unit further includes a second operation unit 70, which is used to control a solenoid valve to work and stop other solenoid valves from working in response to the user's first operation information, so as to open the shower water corresponding to the solenoid valve; wherein, the first operation information is used to control the solenoid valve to open, and the first operation information is the operation information triggered by the user operating the first button 51.

[0138] The control unit further includes a third operation unit 80, which is also used to control another solenoid valve to work and control other solenoid valves other than the other solenoid valve to stop working in response to the user's second operation information to open the shower water corresponding to the other solenoid valve; the second operation information is used to control the other solenoid valve to open, and the second operation information is the operation information triggered when the user operates the second button 52.

[0139] In other embodiments, the control unit also includes a first operation unit 60, a second operation unit 70, and a third operation unit 80. When the first operation unit 60, the second operation unit 70, and the third operation unit 80 are executed for products of different specifications, the waterway switching method described above is implemented.

[0140] In one embodiment, the control unit further includes a fourth operation unit, which is configured to control both the first solenoid valve and the second solenoid valve to open in response to a fourth operation message from the user after a predetermined time has elapsed since the control module 10 receives power from the hydroelectric generator.

[0141] In one embodiment, the control unit further includes a fifth operation unit, which is used to maintain the second solenoid valve 28 in the open state after controlling the first solenoid valve 27 to open, in response to the user's first operation information, after a predetermined time after the control module 10 receives power from the hydroelectric generator 7 and the second solenoid valve 28 is in the open state.

[0142] When the fourth and fifth operation units are executed by the processor 20, they implement the steps of the waterway switching method as described above.

[0143] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 application.

[0144] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of those features.

[0145] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0146] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0147] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0148] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0149] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A control module for a water outlet device, characterized in that, The water outlet device includes a switching valve, a control module, and a hydroelectric generator. The hydroelectric generator supplies power to the control module and the switching valve. The switching valve includes a valve body, a valve stem, and at least two solenoid valves. The valve body has an inlet, a first outlet, and at least two second outlets. The valve stem is configured to control the opening and closing of the first outlet. Each solenoid valve is configured to control the opening and closing of one second outlet. The valve body has an inlet chamber communicating with the inlet. The valve stem is movably located within the inlet chamber. When both second outlets are closed, the valve stem can move to the position of opening the first outlet under the inlet pressure of the inlet chamber. When at least one second outlet is open, the valve stem can move to the position of closing the first outlet under the inlet pressure of the inlet chamber. The control module is configured as follows: Receive user operation information; the operation information is used to control the opening and closing of one of the at least two solenoid valves; In response to the operation information, a solenoid valve corresponding to the operation information is controlled to open, so that the second outlet corresponding to the solenoid valve opens; The at least two solenoid valves include a first solenoid valve and a second solenoid valve, and the control module is further configured to: After a predetermined time has elapsed since the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, both the first and second solenoid valves are controlled to open; wherein the fourth operation message is used to control the opening of the first and second solenoid valves; and / or During a predetermined time period when the control module receives power from the hydroelectric generator, in response to the user's fourth operation information, it maintains the first solenoid valve or the second solenoid valve in an open state or maintains the first solenoid valve and the second solenoid valve in a closed state; wherein, the fourth operation information is used to control the first solenoid valve and the second solenoid valve to open.

2. The control module for a water outlet device according to claim 1, characterized in that, The control module is also configured to: In response to the user's first operation information, the first solenoid valve is opened while the second solenoid valve remains closed; In response to a second user operation, control the second solenoid valve to open while keeping the first solenoid valve closed; and / or When the first or second solenoid valve is open, in response to the user's third operation information, the first or second solenoid valve is controlled to close, so that the first outlet is opened.

3. The control module for a water outlet device according to claim 1, characterized in that, The control module is also configured to: After a predetermined time has elapsed since the control module receives power from the hydroelectric generator, when the second solenoid valve is in the open state, in response to the user's first operation information, the control module controls the first solenoid valve to open and then maintains the open state of the second solenoid valve; and when the first solenoid valve is in the open state, in response to the user's second operation information, the control module controls the second solenoid valve to open and then maintains the open state of the first solenoid valve.

4. A waterway switching device, characterized in that, Includes the control module applied to the water outlet device as described in any one of claims 1-3.

5. The waterway switching device according to claim 4, characterized in that, The water inlet chamber is connected to a first channel that is connected to the first water outlet and a second channel that is connected to the at least two second water outlets. The valve stem has a first blocking part for blocking the first channel and a second blocking part for blocking the second channel, wherein the cross-section of the first blocking part is smaller than the cross-section of the second blocking part. When both second outlets are closed, the water in the inlet chamber pushes the first blocking part to move the valve stem to the position of opening the first outlet. When at least one second outlet is open, the water in the inlet chamber pushes the second blocking part to move the valve stem to the position of closing the first outlet, and the water in the inlet chamber can flow from the second blocking part and the inner wall of the second channel to the second outlet.

6. A water outlet device, characterized in that, The device includes a water outlet body and a water path switching device according to claim 4 or 5. The water outlet body is provided with at least three water distribution chambers, and each water distribution chamber is provided with a corresponding water spray nozzle. The first water outlet and at least two second water outlets of the switching valve are respectively connected to one of the water distribution chambers to supply water to one of the water distribution chambers, thereby enabling the water outlet device to discharge water in at least three water outlet modes.

7. The water outlet device according to claim 6, characterized in that, It also includes a hydroelectric generator installed in the main body of the water outlet. The hydroelectric generator is used to supply power to the control module and the switching valve. The hydroelectric generator includes: a housing and an impeller, a stator and a rotor installed in the housing. The housing is provided with a first cavity and a second cavity. The stator and the rotor are installed in the second cavity. The impeller is installed in the first cavity and connected to the rotor. The housing includes a housing body and a water inlet cover located at the water inlet end of the first cavity. A conical protrusion is provided on the outer side of the water inlet cover, and a plurality of water inlet holes inclined relative to the center line are provided around the conical protrusion. The plurality of water inlet holes are inclined in the same direction in the circumferential direction. Water enters the first cavity through the water inlet holes and drives the impeller to rotate.

8. The water outlet device according to claim 7, characterized in that, The inclination angle of the water inlet relative to the center line is 50-70°.

9. The water outlet device according to claim 7, characterized in that, Each blade of the impeller is curved and extended in a direction away from the center to form an arc-shaped structure, wherein a water-blocking rib is provided at the end of the concave side of the blade.

10. The water outlet device according to claim 7, characterized in that, The impeller includes a central connecting part and a plurality of blades surrounding the central connecting part. A circular connecting seat is also provided around the central connecting part. The circular connecting seat connects the root positions of the plurality of blades near the central connecting part, and the diameter of the circular connecting seat gradually decreases in the direction toward the water inlet cover.

11. The water outlet device according to claim 7, characterized in that, The stator is provided with a coil, the wire diameter of which is 0.1-0.12mm and the number of turns of which is 900-1000.

12. The water outlet device according to any one of claims 6-11, characterized in that, The water outlet device is a shower head or overhead spray; When the water outlet device is a shower head, the water generator is located at the handle of the shower head.

13. A shower head, characterized in that, The system includes a main water outlet, a switching valve, a hydroelectric generator, and a control module mounted on the main water outlet. The hydroelectric generator is electrically connected to the control module and the switching valve. The main water outlet has at least two water distribution chambers, each with a corresponding spray nozzle. The switching valve includes a valve body with at least two water outlets and at least two solenoid valves, each solenoid valve corresponding to one water outlet to control the opening and closing of that outlet. Each water outlet is connected to one of the water distribution chambers to supply water to that chamber. The control module is configured as follows: In response to a user's first operation information, a solenoid valve is controlled to operate and other solenoid valves except for that solenoid valve are stopped to open the shower water corresponding to that solenoid valve; wherein, the first operation information is used to control the solenoid valve to open. In response to a second operation message from the user, another solenoid valve is controlled to operate and other solenoid valves are controlled to stop operating in order to open the shower water corresponding to the other solenoid valve; wherein, the second operation message is used to control the other solenoid valve to open. The switching valve includes two solenoid valves, and the control module is further configured to: After a predetermined time has elapsed since the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, both solenoid valves are controlled to open; wherein, the fourth operation message is used to control the opening of the two solenoid valves; and / or Within a predetermined time after the control module receives power from the hydroelectric generator, in response to a fourth operation message from the user, it maintains one of the two solenoid valves in an open state or maintains both solenoid valves in a closed state; wherein, the fourth operation message is used to control the two solenoid valves to open.

14. The shower head according to claim 13, characterized in that, The water outlet body includes a handheld part and a water outlet part, the hydroelectric generator is mounted on the handheld part, and the switching valve is mounted on the water outlet part.

15. The shower head according to claim 14, characterized in that, The hydroelectric generator includes a power generation module and a water inlet cover. The power generation module is connected to the impeller to convert the rotation of the impeller into electrical energy. The water inlet cover is located upstream of the impeller and has a conical protrusion facing upstream and a plurality of water inlet holes inclined relative to the center line around the conical protrusion. The plurality of water inlet holes are inclined in the same direction in the circumferential direction. Water enters from the water inlet holes and drives the impeller to rotate.

16. The shower head according to claim 15, characterized in that, The inclination angle of the water inlet relative to the center line is 50-70°.

17. The shower head according to any one of claims 13-16, characterized in that, The valve body is provided with an inlet chamber communicating with the inlet channel of the water outlet body, and a movable valve stem is provided in the inlet chamber; the valve body has at least two outlets including a first outlet and at least two second outlets, each solenoid valve is provided with one second outlet, when all the second outlets are closed, the valve stem can move to the position of opening the first outlet under the action of the inlet pressure of the inlet chamber, and when at least one second outlet is open, the valve stem can move to the position of closing the first outlet under the action of the inlet pressure of the inlet chamber.

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