Micro-nano bubble generating device and water heater thereof

Abstract

The application discloses a water heater with a micro-nano bubble generating device and a control method thereof. The water heater comprises a water heater body, a water flow detection module, a micro-nano bubble generating device and a control module. The water heater body is provided with a water inlet pipe and a water outlet pipe. The water flow detection module is arranged on the water inlet pipe. The micro-nano bubble generating device comprises a temperature control bin body, a flow guide pipe and a gas-liquid mixer. The temperature control bin body is provided with a cavity, a water inlet, a water outlet and an air inlet. The water inlet is connected with the water outlet pipe and the cavity respectively. The water outlet is connected with the cavity and the external water pipe respectively. The flow guide pipe is arranged in the cavity and connected with the air inlet at one end and provided with a plurality of air outlet holes connected with the cavity at the other end. The gas-liquid mixer is arranged at the water outlet. The air outlet of the air charging module is connected with the air inlet. The control module is electrically connected with the air charging module and the water flow detection module respectively. The water heater can generate micro-nano bubble water immediately, reduce the waiting time of the user, continuously generate micro-nano bubble water and better meet the water demand of the user for skin beautifying bath.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water heaters, in particular to a water heater with a micro-nano bubble generating device and a control method thereof. BACKGROUND

[0002] At present, the market advocates healthy bathing and skin beautifying bathing, and the micro-nano bubble liquid has the function of deep cleaning and beautifying the skin, and is more and more applied to gas water heaters.

[0003] However, the micro-nano bubble generating devices on the market have the following disadvantages: they cannot continuously produce micro-nano bubble water, and after the user uses the current micro-nano bubble water, the bubble water production function must be restarted, which takes a long time to wait and the one-time production of bubble water is not enough for bathing, affecting the user experience. SUMMARY

[0004] The present application aims to at least solve one of the problems existing in the prior art, and for this purpose, the present application provides a water heater with a micro-nano bubble generating device, which can realize the output of micro-nano bubble water, reduce the waiting time of the user, and continuously produce micro-nano bubble water to better meet the water demand of the user for skin beautifying bathing.

[0005] The present application also provides a control method for applying the water heater.

[0006] According to the above-mentioned water heater with a micro-nano bubble generating device, the following technical solutions are realized:

[0007] A water heater with a micro-nano bubble generating device, comprising: a water heater body having a water inlet pipe and a water outlet pipe; a water flow detection module arranged on the water inlet pipe for detecting the water flow signal of the water inlet pipe; a micro-nano bubble generating device comprising a temperature control chamber body, an air flow guide pipe and a gas-liquid mixer, the temperature control chamber body having a cavity, a water inlet, a water outlet and an air inlet, the water inlet being connected to the water outlet pipe and the cavity respectively, the water outlet being connected to the cavity and the external hot water pipe respectively, the air flow guide pipe being arranged in the cavity and having one end connected to the air inlet and the other end provided with a plurality of air outlet holes connected to the cavity, the gas-liquid mixer being arranged at the water outlet; an air charging module, the air outlet of the air charging module being connected to the air inlet for filling air into the air inlet; a control module, the control module being electrically connected to the air charging module and the water flow detection module, for controlling the air charging module to continuously charge air into the air inlet every interval△t when the water flow detection module does not detect a water flow signal; and for controlling the air charging module to continuously charge air into the air inlet until the user stops the water when the water flow detection module detects a water flow signal.

[0008] In some embodiments, the micro-nano bubble generating device further comprises a gas-liquid mixing tube, which is sleeved on the outer surface of the gas flow conduit, and one end of the gas-liquid mixing tube is communicated with the water outlet, and the other end is provided with a water inlet portion which is higher than the air outlet hole, the cavity is communicated with the gas-liquid mixing tube through the water inlet portion, and the gas flow conduit is communicated with the gas-liquid mixing tube through the air outlet hole.

[0009] In some embodiments, all the air outlet holes are circumferentially spaced and arranged at the lower end or the bottom of the side wall of the gas flow conduit, and each air outlet hole is lower than the water inlet portion.

[0010] In some embodiments, the water inlet is arranged on the side wall of the temperature control chamber body, the water outlet is arranged on the bottom or the lower end of the side wall of the temperature control chamber body, and the air inlet is arranged on the top of the temperature control chamber body; the top of the temperature control chamber body is provided with a downwardly recessed sink, the sink is coaxial and communicated with the air inlet, the upper end surface of the side wall of the gas flow conduit abuts against the bottom of the sink, the upper end of the side wall of the gas-liquid mixing tube abuts against the outer side wall of the sink, and the water inlet portion is arranged on the upper end of the side wall of the gas flow conduit.

[0011] In some embodiments, the water inlet is arranged on the side wall of the temperature control chamber body, the water outlet is arranged on the bottom or the lower end of the side wall of the temperature control chamber body, and the air inlet is arranged on the top of the temperature control chamber body; the upper end surfaces of the side walls of the gas flow conduit and the gas-liquid mixing tube respectively abut against the top of the temperature control chamber body, and the water inlet portion is arranged on the upper end of the side wall of the gas flow conduit.

[0012] In some embodiments, the water inlet portion is a plurality of water inlet holes or water inlet grooves, and all the water inlet holes or all the water inlet grooves are circumferentially spaced and arranged on the upper end of the side wall of the gas-liquid mixing tube.

[0013] In some embodiments, the water inlet is arranged on the side wall of the temperature control chamber body, the water outlet is arranged on the bottom or the lower end of the side wall of the temperature control chamber body, and the air inlet is arranged on the top of the temperature control chamber body; the upper end surface of the side wall of the gas flow conduit abuts against the top of the temperature control chamber body, a spacing is left between the gas-liquid mixing tube and the top of the temperature control chamber body, and the water inlet portion is arranged on the upper end or the top of the side wall of the gas flow conduit.

[0014] In some embodiments, the top of the gas-liquid mixing tube is closed, the water inlet portion is a plurality of water inlet holes or water inlet grooves, and all the water inlet holes or all the water inlet grooves are circumferentially spaced and arranged on the upper end of the side wall of the gas-liquid mixing tube; or, the top of the gas-liquid mixing tube is provided with an opening, and the opening of the top of the gas-liquid mixing tube constitutes the water inlet portion.

[0015] In some embodiments, the air charging module comprises an air pipe, an air pump and a control valve, the air inlet is communicated with external air through the air pipe, the air pump is arranged on the air pipe and electrically connected with the control module, and the control valve is arranged on the air pipe and located between the air pump and the air inlet.

[0016] According to the control method of the water heater provided above, the technical scheme is realized as follows:

[0017] A control method of a water heater, which applies the water heater as described above, comprises the following steps:

[0018] S1, the water heater is powered on to enter a bubble water bathing mode;

[0019] S2, it is judged whether a water flow detection module detects a water flow signal, if yes, it is indicated that a user uses water and step S4 is entered, and if not, step S3 is entered;

[0020] S3, a control air charging module continuously charges air to the air inlet every interval △t for t1 until the water flow detection module detects the water flow signal and step S4 is entered;

[0021] S4, the control air charging module continuously charges air to the air inlet until the user turns off the water;

[0022] S5, the air charging module is turned off and step S2 is returned.

[0023] Compared with the prior art, the present application has at least the following beneficial effects:

[0024] 1, the water heater of the present application, by connecting the water inlet of the micro-nano bubble generating device with the water outlet pipe, connecting the water outlet with the external hot water pipe, and connecting the air outlet of the air charging module with the air inlet of the micro-nano bubble generating device, when the water flow detection module does not detect the water flow signal, the air charging module is controlled to continuously charge air to the air inlet every interval △t for t1, so that air and water in the cavity are mixed to form oxygen-enriched water, ensuring that micro-nano bubble water can be obtained when the user uses water, reducing the waiting time of the user. When the water flow detection module detects the water flow signal, the air charging module is controlled to continuously charge air to the air inlet while the water inlet is continuously supplied with water, so that micro-nano bubble water can be continuously produced to meet the water requirement of the user's skin beautifying bath. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the water heater in embodiment 1 of the present application;

[0026] Figure 2 is a structural schematic diagram of the micro-nano bubble generating device in embodiment 1 of the present application;

[0027] Figure 3 is Figure 2 is a partial enlarged view of part A in figure 1;

[0028] Figure 4 is a partial enlarged view of a micro-nano bubble generating device in embodiment 2 of the present application;

[0029] Figure 5 is a partial enlarged view of a micro-nano bubble generating device in embodiment 3 of the present application;

[0030] Figure 6 is a structural schematic view of a micro-nano bubble generating device in embodiment 4 of the present application;

[0031] Figure 7 is a flow chart of a control method of a water heater in embodiment 5 of the present application. DETAILED DESCRIPTION

[0032] The following embodiments are used to illustrate the present application, but the present application is not limited by these embodiments. Modifications to the specific embodiments of the present application or equivalent replacements to part of the technical features, without departing from the spirit of the present application, should be covered in the technical solution range claimed by the present application.

[0033] Embodiment 1

[0034] As Figures 1-3As shown, the embodiment provides a water heater with a micro-nano bubble generating device. The water heater can be an electric water heater or a gas water heater. The water heater comprises a water heater body 1, a water flow detection module 2, a micro-nano bubble generating device, an air charging module (not shown in the figure) and a control module (not shown in the figure). The water heater body 1 has a water inlet pipe 11 and a water outlet pipe 12. The water inlet pipe 11 is connected to an external water source, i.e. tap water. The micro-nano bubble generating device comprises a temperature control chamber body 31, an air flow guide pipe 32 and an air-liquid mixer 33. The temperature control chamber body 31 has a cavity 311, a water inlet 312, a water outlet 313 and an air inlet. The water outlet pipe 12 is connected to the cavity 311 through the water inlet 312. The water outlet 313 is connected to the cavity 311 and an external hot water pipe respectively. The air flow guide pipe 32 is arranged in the cavity 311 and has one end connected to the air inlet and the other end provided with a plurality of air outlet holes 321 connected to the cavity 311. The air-liquid mixer 33 is arranged at the water outlet 313 and used to burst the oxygen-rich water into micro-nano bubbles, thereby continuously producing micro-nano bubble water. The air outlet of the air charging module is connected to the air inlet and used to charge air into the air inlet. The control module is electrically connected to the air charging module and the water flow detection module 2. When the water flow detection module 2 does not detect a water flow signal, the control module controls the air charging module to continuously charge air into the air inlet every interval Δt for t1 until the water flow detection module 2 detects a water flow signal. When the water flow detection module 2 detects a water flow signal, the control module controls the air charging module to continuously charge air into the air inlet until the user stops the water.

[0035] When the user does not use water, the water flow detection module 2 does not detect a water flow signal. At this time, the air charging module continuously charges air into the air inlet every interval Δt for t1, so that the external air enters the air flow guide pipe 32 and then flows out of the air outlet holes 321 to mix with the water in the cavity 311, so that the water in the cavity 311 is all in the form of oxygen-rich water, i.e. oxygen-rich water, thereby ensuring that the user can obtain micro-nano bubble water when using water and reducing the waiting time of the user.

[0036] When the user uses water, the external water source flows into the cavity 311 along the water inlet pipe 11, the water outlet pipe 12 and the water inlet 312. The water flow detection module 2 detects a water flow signal. The air charging module continuously charges air into the air inlet, so that the air mixes with the water in the cavity 311 to continuously form oxygen-rich water. When the oxygen-rich water flows through the air-liquid mixer 33, it is burst into micro-nano bubbles, thereby continuously producing micro-nano bubble water to meet the water demand of the user for skin beautifying bath.

[0037] As can be seen, the water heater in this embodiment connects the inlet of the micro-nano bubble generator to the outlet pipe 12, the outlet to an external hot water pipe, and the air outlet of the aeration module to the air inlet of the micro-nano bubble generator. When the water flow detection module 2 does not detect a water flow signal, the aeration module continuously aerates the air inlet at intervals Δt and t1, allowing the air to mix with the water in the cavity 311 to form oxygen-rich water. This ensures that micro-nano bubble water is readily available when the user uses water, reducing the user's waiting time. When the water flow detection module 2 detects a water flow signal, while water continues to enter through the inlet 312, the aeration module continuously aerates the air inlet, thereby continuously producing micro-nano bubble water to meet the user's water volume requirements for a beauty bath.

[0038] In this embodiment, the micro / nano bubble generator further includes a gas-liquid mixing tube 34. The gas-liquid mixing tube 34 is sleeved on the outer surface of the airflow conduit 32, and one end of the gas-liquid mixing tube 34 is connected to the water outlet 313, while the other end is provided with a water inlet 341 that is higher than the air outlet 321. The cavity 311 is connected to the gas-liquid mixing tube 34 through the water inlet 341, and the airflow conduit 32 is connected to the gas-liquid mixing tube 34 through the air outlet 321. Thus, by adding a gas-liquid mixing tube 34 sleeved on the outer surface of the airflow conduit 32, and connecting one end of the gas-liquid mixing tube 34 to the water outlet 313, and providing a water inlet 341 that is higher than the water inlet 312 at the other end, the water level in the cavity 311 is raised to the water inlet 341 before flowing into the gas-liquid mixing tube 34 through the water inlet 341.

[0039] When the user is not using water, the cavity 311 contains more water. The air inlet module continuously inflates the air inlet at intervals of Δt, causing external air to enter the airflow duct 32 and then flow out from the air outlet 321. This air mixes with the water in the cavity 311 and the gas-liquid mixing tube 34, ensuring that the water in both 311 and 34 is oxygen-rich. This guarantees a greater volume of oxygen-rich water produced, better meeting the user's water needs for a beauty bath. When the user is using water, the smaller volume of water in the gas-liquid mixing tube 34 makes it easier to continuously produce oxygen-rich water, thus enabling the continuous production of micro-nano bubble water.

[0040] like Figures 2-3 As shown, in this embodiment, the temperature control chamber body 31 consists of an upper shell and a lower shell, which are welded together and together define the cavity 311. This modular design of the temperature control chamber body 31 facilitates the assembly of the airflow duct 32 and the gas-liquid mixing pipe 34. A water inlet 312 is provided on the side wall of the upper shell, and an air inlet and air inlet connector 315 are provided on the top of the upper shell. A water outlet 313 is provided on the bottom or side wall of the lower shell; in this embodiment, the water outlet 313 is located at the bottom of the lower shell.

[0041] Preferably, to ensure that the temperature control warehouse body 31 has greater pressure resistance, the materials of the upper shell and the lower shell are both selected to be stainless steel, and the upper shell and the lower shell are made by a flange buckling process, that is, the lower flange of the lower shell is wrapped around the upper flange of the upper shell to enhance the overall pressure resistance of the cavity 311.

[0042] Preferably, to facilitate the installation of the air inlet joint 315, a downwardly recessed sink 314 is arranged on the top of the upper shell, which is coaxial and communicates with the air inlet. A limiting boss extending outward is arranged on the middle of the side wall of the air inlet joint 315. When installed, the air inlet joint 315 is inserted into the air inlet, and the limiting boss tightly abuts the bottom of the sink 314. In this way, the installation of the air inlet joint 315 is limited by the abutting limiting boss and sink 314, which is beneficial to improving the air tightness between the air inlet joint 315 and the upper shell, preventing air leakage at the connection between the air inlet joint 315 and the upper shell. In addition, the arrangement of the sink 314 is beneficial to improving the strength of the air inlet, preventing the air inlet from deforming when the air inlet joint 315 is installed.

[0043] Preferably, the air inlet joint 315 is a gas nozzle nut, and to further improve the sealing performance of the connection between the air inlet joint 315 and the upper shell, a sealing ring can be additionally arranged between the limiting boss and the bottom of the sink 314 and / or between the air inlet joint 315 and the air inlet.

[0044] As shown in Figures 2-3 In this embodiment, the airflow guide pipe 32 is preferably a hollow metal pipe with a closed lower end and an open upper end. The airflow guide pipe 32 is inserted into the gas-liquid mixing pipe 34, the upper end surface of the side wall of the airflow guide pipe 32 abuts the bottom of the sink 314, and the upper end of the side wall of the airflow guide pipe 32 abuts the outer wall surface of the air inlet, so as to improve the air tightness between the airflow guide pipe 32 and the air inlet. In other embodiments, the upper end of the side wall of the airflow guide pipe 32 can be designed to be threadedly connected with the air inlet joint 315.

[0045] All the air outlet holes 321 are uniformly and spacedly arranged on the lower end or the bottom of the side wall of the airflow guide pipe 32, so that air is uniformly discharged from the airflow guide pipe 32. Each air outlet hole 321 is lower than the water inlet portion 341, so that when water enters the cavity 311 into the gas-liquid mixing pipe 34, it is mixed with the air flowing out of the air outlet hole 321. In this embodiment, all the air outlet holes 321 are arranged on the lower end of the side wall of the airflow guide pipe 32. The length of the airflow guide pipe 32 is 50 mm, and the diameter of the air outlet hole 321 is 2 mm, so as to reduce the air outlet area of a single air outlet hole. When the air flowing into the airflow guide pipe 32 is sprayed out of the air outlet hole 321, several air flows equal to the number of air outlet holes 321 are formed, which are more easily mixed with water.

[0046] In the embodiment, the gas-liquid mixer 33 is a cylinder, and a plurality of Venturi tube structures are evenly distributed in the cylinder. The water flow path of each Venturi tube structure is the same as the water outlet direction of the water outlet. In this way, the plurality of evenly distributed Venturi tube structures are arranged to cause the oxygen-enriched water to be split when passing through the gas-liquid mixer 33. Each split is broken after the speed is increased at the corresponding Venturi tube structure, thereby forming more micro-nano bubbles and having a deep cleaning function.

[0047] In the embodiment, the length of the gas-liquid mixing pipe 34 is greater than the length of the airflow guide pipe 32. The upper and lower ends of the gas-liquid mixing pipe 34 have openings. The lower end of the gas-liquid mixing pipe 34 is connected to the water outlet 313, and the upper end of the gas-liquid mixing pipe 34 is sleeved on the outer surface of the sink 314 and abuts against the outer side wall of the sink 314. The water inlet part 341 is arranged on the upper end of the side wall of the airflow guide pipe 32 and is higher than the air outlet hole 321. The diameter of the gas-liquid mixing pipe 34 is greater than the diameter of the airflow guide pipe 32, so that an annular flow channel is left between the gas-liquid mixing pipe 34 and the airflow guide pipe 32 for water flow. When the water flows into the annular flow channel from the cavity 311 and the water inlet part 341, the water is mixed with the air ejected from the air outlet hole 321 during the flow through the annular flow channel.

[0048] Preferably, the water inlet part 341 is a plurality of water inlet holes or water inlet grooves, and all the water inlet holes or all the water inlet grooves are arranged at the upper end of the side wall of the gas-liquid mixing pipe 34. In the embodiment, the water inlet part 341 is a plurality of water inlet holes, which are evenly distributed at the upper end of the side wall of the gas-liquid mixing pipe 34 to improve the uniformity of water inlet of the gas-liquid mixing pipe 34.

[0049] Preferably, the air charging module includes an air pipe 41 and an air pump 42. The air inlet is connected to the outside air through the air pipe 41. The air pump 42 has a compressed air function and is arranged on the air pipe 41 and electrically connected to the control module. The air pump 42 is used to suck air into the air pipe 41, so that the air charges along the air pipe 41 to the air inlet, realizes the compressed air to be delivered to the micro-nano bubble water device, and mixes with the water in the gas-liquid mixing pipe 34 and the cavity 311 to form oxygen-enriched water.

[0050] More preferably, the air charging module further includes a control valve 43, which is arranged on the air pipe 41 and located between the air pump 42 and the air inlet. The control valve 43 of the embodiment is a one-way valve, which has a check spring inside. Only the compressed air is allowed to move from the air pump 42 to the inside of the device, and the liquid in the device is not allowed to flow back to the air pump 42 through the airflow guide pipe 32.

[0051] Preferably, the control module includes a controller 51 and an operation panel 52. The controller 51 is electrically connected to the operation panel 52, the air pump 42 and the water flow detection module 2, respectively. The operation panel 52 is provided with a bubble water start button.

[0052] Example 2

[0053] like Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the temperature control chamber body 31 omits the recessed platform, the upper end face of the side wall of the airflow duct 32 abuts against the top of the temperature control chamber body 31, and the upper end of the side wall of the airflow duct 32 abuts against the outer side wall of the air inlet. The upper end face of the side wall of the gas-liquid mixing pipe 34 abuts against the top of the temperature control chamber body 31, and the limiting protrusion of the air inlet connector 315 abuts against the top of the temperature control chamber body 31. Other parts are the same as in Embodiment 1.

[0054] As can be seen, by omitting the sinking platform, this embodiment makes the overall structure of the temperature control chamber body 31 simpler and easier to process and form quickly.

[0055] Example 3

[0056] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 or 2 is that the installation structure of the gas-liquid mixing pipe 34 is different. A gap is left between the gas-liquid mixing pipe 34 and the top of the temperature control chamber body 31 to shorten the length of the gas-liquid mixing pipe 34. The water inlet 341 is located on the upper end of the side wall or the top of the airflow duct 32.

[0057] When the top of the gas-liquid mixing pipe 34 is closed and the bottom is open, the bottom opening of the gas-liquid mixing pipe 34 is connected to the water outlet, and the water inlet 341 is a number of water inlet holes or water inlet grooves, all of which are circumferentially spaced on the upper side wall of the gas-liquid mixing pipe 34.

[0058] When the top and bottom of the gas-liquid mixing pipe 34 are open, the bottom opening of the gas-liquid mixing pipe 34 is connected to the water outlet, and the top opening of the gas-liquid mixing pipe 34 forms the water inlet 341, there is no need to open an additional water inlet hole or water inlet groove on the upper side wall of the gas-liquid mixing pipe 34, which simplifies the processing steps of the gas-liquid mixing pipe 34 and reduces the manufacturing difficulty and manufacturing cost.

[0059] Example 4

[0060] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that the gas-liquid mixing pipe 34 is omitted and the length of the airflow duct 32 is extended. Several air outlets 321 are evenly distributed around the lower end of the side wall of the airflow duct 32. Each air outlet 321 is directly connected to the cavity 311. The water inlet 312 is located on the side wall of the temperature control chamber body 31 and is higher than each air outlet 321.

[0061] When the user does not use water, the water flow detection module 2 does not detect the water flow signal, at this time, the air charging module continuously charges the air inlet every interval At for t1, so that the external air enters the air flow duct 32, and then flows out from the air outlet hole 321 and mixes with the water in the cavity 311, so that the water in the cavity 311 is all oxygen-enriched water, that is, oxygen-enriched water, thereby ensuring that the user can realize the out-of-micro-nano bubble water when using water, and reducing the user's waiting time. When the user uses water, the external water source flows into the cavity 311 along the water inlet pipe 11, the water outlet pipe 12 and the water inlet 312, the water flow detection module 2 detects the water flow signal, and the air charging module continuously charges the air inlet to mix the air with the water in the cavity 311 to continue to form oxygen-enriched water; when the oxygen-enriched water flows through the gas-liquid mixer 33, it explodes into micro-nano bubbles, thereby continuously producing micro-nano bubble water to meet the water demand of the user's skin beautifying bath.

[0062] Embodiment 5

[0063] As shown in Figure 7 The present embodiment provides a control method of a water heater, which applies the water heater of any one of embodiments 1-7, and the control method comprises the following steps:

[0064] S1, the water heater is powered on to enter the bubble water bath mode;

[0065] Specifically, after the water heater is powered on, it is first judged whether there is a skin beautifying bath demand. If there is a skin beautifying bath demand, the water heater is controlled to enter the bubble water bath mode; if there is no skin beautifying bath demand, the water heater is controlled to enter the normal bath mode.

[0066] In the present embodiment, the judgment of whether there is a skin beautifying bath demand is achieved by identifying whether the user presses the bubble water start button on the operation panel 52. If the bubble water start button is pressed, it is judged that there is a skin beautifying bath demand; if the bubble water start button is not pressed, it is judged that there is no skin beautifying bath demand. For the exit of the bubble water bath mode, it can be designed that the bubble water bath mode is exited when the bubble water start button is pressed again, or an additional bubble water stop button is additionally provided on the operation panel 52, and of course the bubble water bath mode can also be exited through other ways.

[0067] S2, it is judged whether the water flow detection module 2 detects the water flow signal. If yes, it indicates that the user uses water and turns to step S4; if no, it turns to step S3;

[0068] S3, the air charging module is controlled to continuously charge the air inlet every interval At for t1 until the water flow detection module 2 detects the water flow signal and turns to step S4;

[0069] Specifically, when the water flow signal is not detected, the control inflation module continuously inflates the air inlet for t1 every interval △t, which can be first continuously inflated for t1, then interval △t, of course, it can also be first interval △t, then continuously inflate for t1, so that the air and the water in the micro-nano bubble generating device are mixed to form oxygen-enriched water through intermittent inflation. When the water flow detection module 2 detects the water flow signal, the water heater can output micro-nano bubble water when the user uses water, reducing the user's waiting time and better meeting the user's skin care bath requirements.

[0070] S4, control the inflation module to continuously inflate the air inlet until the user turns off the water;

[0071] Specifically, when the water flow detection module 2 detects the water flow signal, the hot water pipe continuously provides hot water for the micro-nano bubble generating device, and at the same time, the control inflation module continuously inflates the air inlet to mix the air and the water in the device to continue to form oxygen-enriched water. When the oxygen-enriched water flows through the gas-liquid mixer 33, it bursts into micro-nano bubbles, thereby continuously producing micro-nano bubble water, effectively meeting the user's skin care bath water demand.

[0072] S5, turn off the inflation module and return to step S2.

[0073] It can be seen that the control method of the water heater of the embodiment, by controlling the inflation module to continuously inflate the air inlet for t1 every interval △t when the water flow detection module 2 does not detect the water flow signal, so that the air and the water in the cavity 311 are mixed to form oxygen-enriched water, ensuring that the user can output micro-nano bubble water when using water, reducing the user's waiting time; and when the water flow detection module 2 detects the water flow signal, the control inflation module continuously inflates the air inlet while the water inlet 312 continuously inflates, thereby continuously producing micro-nano bubble water to meet the user's skin care bath water demand.

[0074] The above only describes some embodiments of the present application. Those skilled in the art can make several modifications and improvements without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. A water heater with micro-nano bubble generating device, characterized in that, The application relates to a hot water supply device, which comprises the following components: a hot water supply body (1) provided with a water inlet pipe (11) and a water outlet pipe (12); a water flow detection module (2) arranged on the water inlet pipe (11) and used for detecting a water flow signal of the water inlet pipe (11); a micro-nano bubble generating device, which comprises a temperature control bin body (31), an air flow guide pipe (32) and an air-liquid mixer (33), the temperature control bin body (31) is provided with a cavity (311), a water inlet (312), a water outlet (313) and an air inlet, the water inlet (312) is respectively connected with the water outlet pipe (12) and the cavity (311), the water outlet (313) is respectively connected with the cavity (311) and an external hot water pipe, the air flow guide pipe (32) is arranged in the cavity (311) and one end of the air flow guide pipe (32) is connected with the air inlet, the other end of the air flow guide pipe (32) is provided with a plurality of air outlet holes (321) connected with the cavity (311), and the air-liquid mixer (33) is arranged at the water outlet (313); an air filling module, an air outlet of the air filling module is connected with the air inlet, and the air filling module is used for filling air into the air inlet; a control module, the control module is electrically connected with the air filling module and the water flow detection module (2), the control module is used for controlling the air filling module to continuously fill air into the air inlet every interval delta t for t1 when the water flow detection module (2) does not detect a water flow signal, and the control module is used for controlling the air filling module to continuously fill air into the air inlet until a user stops water when the water flow detection module (2) detects a water flow signal, the micro-nano bubble generating device further comprises an air-liquid mixing pipe (34), the air-liquid mixing pipe (34) is arranged on the outer surface of the air flow guide pipe (32), one end of the air-liquid mixing pipe (34) is connected with the water outlet (313), and the other end of the air-liquid mixing pipe (34) is provided with a water inlet part (341) which is higher than the air outlet holes (321), the cavity (311) and the air-liquid mixing pipe (34) are connected through the water inlet part (341), and the air flow guide pipe (32) and the air-liquid mixing pipe (34) are connected through the air outlet holes (321).

2. The water heater with micro-nano bubble generating device according to claim 1, characterized in that, All the air outlet holes (321) are circumferentially arranged at the lower end or the bottom of the side wall of the air flow guide pipe (32), and each air outlet hole (321) is lower than the water inlet part (341).

3. The water heater with micro-nano bubble generating device according to claim 1, characterized in that, The water inlet (312) is arranged on the side wall of the temperature control bin body (31), the water outlet (313) is arranged on the bottom or the lower end of the side wall of the temperature control bin body (31), and the air inlet is arranged on the top of the temperature control bin body (31); the top of the temperature control bin body (31) is provided with a downwardly recessed sunken table (314), the sunken table (314) is coaxial with and connected with the air inlet, the upper end surface of the side wall of the air flow guide pipe (32) abuts against the bottom of the sunken table (314), the upper end of the side wall of the air-liquid mixing pipe (34) abuts against the outer side wall of the sunken table (314), and the water inlet part (341) is arranged on the upper end of the side wall of the air flow guide pipe (32).

4. The water heater with micro-nano bubble generating device according to claim 1, characterized in that, The water inlet (312) is arranged on the side wall of the temperature control bin body (31), the water outlet (313) is arranged on the bottom or lower end of the side wall of the temperature control bin body (31), and the air inlet is arranged on the top of the temperature control bin body (31). The upper end surface of the side wall of the airflow guide pipe (32) and the gas-liquid mixing pipe (34) abuts against the top of the temperature control bin body (31), and the water inlet portion (341) is arranged on the upper end of the side wall of the airflow guide pipe (32).

5. The water heater with micro-nano bubble generating device according to claim 3 or 4, characterized in that, The water inlet portion (341) is a plurality of water inlet holes or water inlet grooves, and all the water inlet holes or all the water inlet grooves are circumferentially spaced apart on the upper end of the side wall of the gas-liquid mixing pipe (34).

6. The water heater with micro-nano bubble generating device according to claim 1, characterized in that, The water inlet (312) is arranged on the side wall of the temperature control bin body (31), the water outlet (313) is arranged on the bottom or lower end of the side wall of the temperature control bin body (31), and the air inlet is arranged on the top of the temperature control bin body (31). The upper end surface of the side wall of the airflow guide pipe (32) abuts against the top of the temperature control bin body (31), and a spacing is left between the gas-liquid mixing pipe (34) and the top of the temperature control bin body (31), and the water inlet portion (341) is arranged on the upper end or top of the side wall of the airflow guide pipe (32).

7. The water heater with micro-nano bubble generating device according to claim 6, characterized in that, The top of the gas-liquid mixing pipe (34) is closed, the water inlet portion (341) is a plurality of water inlet holes or water inlet grooves, and all the water inlet holes or all the water inlet grooves are circumferentially spaced apart on the upper end of the side wall of the gas-liquid mixing pipe (34). Alternatively, the top of the gas-liquid mixing pipe (34) has an open top, and the open top of the top of the gas-liquid mixing pipe (34) constitutes the water inlet portion (341).

8. The water heater with micro-nano bubble generating device according to claim 1, characterized in that, The air charging module includes an air pipe (41), an air pump (42), and a control valve (43), the air inlet is connected to external air through the air pipe (41), the air pump (42) is arranged on the air pipe (41) and is electrically connected to the control module, and the control valve (43) is arranged on the air pipe (41) and is located between the air pump (42) and the air inlet.

9. A control method of a water heater, characterized by, The application applies the water heater of any one of claims 1-8, and the control method comprises the following steps: S1, the water heater is powered on, and a bubble water bathing mode is entered; S2, it is judged whether the water flow detection module (2) detects a water flow signal, if yes, it is indicated that the user uses water and step S4 is entered, and if not, step S3 is entered; S3, the air charging module is controlled to continuously charge air to the air inlet every interval △t for t1, and after the water flow detection module (2) detects a water flow signal, step S4 is entered; S4, the air charging module is controlled to continuously charge air to the air inlet until the user turns off the water; S5, the air charging module is turned off and returns to step S2.

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