Sterilization water preparation system capable of adaptively adjusting concentration of sterilization gas according to water temperature

Abstract

The invention provides a sterilization water preparation system capable of adaptively adjusting the concentration of sterilization gas according to the water temperature, and relates to the technical field of sterilization water preparation devices.The sterilization water preparation system comprises a sterilization gas preparation host, a water supply system, a gas-liquid mixer, a gas channel and a temperature sensor; when the water temperature exceeds a certain range, the sterilization gas generator can be automatically controlled to be closed, so that energy waste caused by substandard dissolution rate of sterilization gas in water is avoided, and harm to human health caused by escape of sterilization gas such as ozone which is not dissolved in water can be avoided; moreover, the concentration of the sterilizing gas output by the sterilizing gas generator can be adaptively adjusted according to the water temperature, so that the concentration of the finally prepared sterilizing water is maintained in a reasonable and effective range, the sterilizing effect of the sterilizing water is ensured, and meanwhile, the device has economical efficiency and simplicity and convenience in operation; and the method is high in control accuracy and widely applicable to various sterilization application scenes.

Description

Technical Field

[0001] This invention relates to the field of disinfection and sterilization technology, and in particular to a sterilization water preparation system that adaptively adjusts the concentration of sterilizing gas according to water temperature. Background Technology

[0002] Ozone water, as a disinfection and sterilization medium, has outstanding advantages: it not only has strong and rapid sterilization capabilities, but also releases oxygen upon decomposition, making it safe and without side effects. Ozone water is considered widely applicable in water treatment, air purification, food processing, medical disease control, biopharmaceuticals, and aquaculture. In daily life, ozone water is typically prepared by mixing tap water and ozone gas using a gas-water mixer. The tap water supply line and the ozone gas supply line are both connected to the gas-water mixer, and the outlet of the mixer is the ozone water outlet. However, existing ozone generators either cannot adjust the ozone concentration of the ozone water according to actual needs, or require manual operation to adjust the ozone concentration; mechanical manual switches on the market are inconvenient to operate, have low adjustment precision, and are not very practical; while some negative pressure switches are not durable and are easily corroded by ozone. Furthermore, water supply pipes often experience temperature fluctuations due to seasonal changes or time of day, or the use of kitchen water heaters, causing variations in water temperature. Since ozone solubility in water is closely related to water temperature, this leads to fluctuations in the ozone concentration of the ozone water, ultimately resulting in an inability to obtain ozone water with a stable sterilization effect. Moreover, some users find it difficult to easily match the ozone concentration to the current water temperature when manually adjusting the water temperature or ozone concentration, causing significant inconvenience. This is especially true for children, as incorrect ozone concentration adjustments could potentially cause harm. Additionally, current industry standards for controlling ozone generators are not precise enough. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a sterilization water preparation system that adaptively adjusts the concentration of sterilizing gas based on water temperature.

[0004] This invention is implemented using the following scheme: This invention proposes a sterilizing water preparation system that adaptively adjusts the concentration of sterilizing gas according to water temperature. The system comprises a sterilizing gas generating unit, a water supply system, a gas-liquid mixer, a gas passage, and a temperature sensor. The sterilizing gas generating unit includes a sterilizing gas generator and a control module. The water supply system includes a water terminal and a water supply pipeline. The temperature sensor is located in the water supply pipeline to acquire a water temperature signal. Based on the water temperature signal, the control module executes a control method that adaptively adjusts the concentration of sterilizing gas according to water temperature to control the concentration of sterilizing gas generated by the sterilizing gas generator, and outputs sterilizing water containing the controlled concentration of sterilizing gas through the water supply system.

[0005] In one embodiment, the control method executed by the control module to adaptively adjust the concentration of the bactericidal gas according to the water flow rate specifically includes the following steps: S1: The water temperature signal is sampled using a temperature sensor; S2: Filter and reduce noise from the sampled water temperature signal; S3: Determine whether the water temperature value is within the preset water temperature range based on the water temperature signal, and use this to determine whether to turn the sterilization gas generator on or off. S4: If in step S3 it is determined that the water temperature value is not within the preset water temperature value range, then the sterilization gas generator is turned off. If in step S3 it is determined that the water temperature value is within the preset water temperature value range, then the sterilization gas generator is turned on, and the concentration of sterilization gas generated by the sterilization gas generator is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S5: Repeat steps S1-S4.

[0006] In one embodiment, step S2 above involves filtering and denoising the sampled water temperature signal, specifically including: performing sliding mean filtering and interpolation calculation on the sampled water temperature signal data to obtain the current water temperature value.

[0007] In one embodiment, step S4 above, controlling the concentration of the sterilizing gas generated by the sterilizing gas generator, specifically includes: Adjust the operating power of the sterilizing gas generator to control the concentration of the sterilizing gas generated by the sterilizing gas generator; and / or adjust the duty cycle of the pulse signal controlling the sterilizing gas generator to control the concentration of the sterilizing gas generated by the sterilizing gas generator.

[0008] In one embodiment, the gas passage is equipped with an audio sensor; the control method executed by the control module to adaptively adjust the concentration of the bactericidal gas according to the water temperature specifically includes the following steps: S10: The audio signal in the gas passage is sampled by an audio sensor, and the water temperature signal is sampled by a temperature sensor; S20: Performs filtering and noise reduction processing on the sampled audio signal and water temperature signal; S30: Based on the processed audio signal, determine whether the audio signal includes a valid water flow audio signal, and based on the water temperature signal, determine whether the water temperature value is within the preset water temperature value range, and use this to determine whether to turn the sterilization gas generator on or off. S40: If in step S30 it is determined that the audio signal does not include a valid water flow audio signal, or the water temperature value is not within the preset water temperature value range, then the sterilization gas generator is turned off. If in step S30 it is determined that the audio signal includes a valid water flow audio signal and the water temperature value is within the preset water temperature value range, then the sterilization gas generator is started, and the concentration of sterilization gas generated by the sterilization gas generator is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S50: Repeat steps S10-S40.

[0009] In one embodiment, the sterilizing gas preparation host further includes a host wireless module; the water supply system further includes a water terminal control device, which includes a control unit (MCU), a water terminal wireless module, a water terminal display module, and a touch module. The control unit (MCU) is electrically connected to the water terminal wireless module, the water terminal display module, and the touch module. The water terminal wireless module and the host wireless module achieve wireless bidirectional communication. The control unit (MCU) can receive sterilizing gas concentration parameter information transmitted back by the sterilizing gas preparation host through the wireless module and display the sterilizing gas concentration parameter information on the water terminal display module.

[0010] In one embodiment, the water terminal control device further includes a water flow sensor, which is installed in the water supply pipeline to acquire water flow signals. The water flow sensor is electrically connected to the control unit MCU. The control method executed by the control module to adaptively adjust the concentration of sterilizing gas according to the water temperature specifically includes the following steps: S100: Samples the water flow signal in the water circuit through a water flow sensor; and samples the water temperature signal through a temperature sensor; S200: Performs filtering and noise reduction processing on the sampled water flow and water temperature signals; S300: Based on the processed water flow signal, determine whether the water flow is zero, and based on the water temperature signal, determine whether the water temperature value is within the preset water temperature range, and use this to determine whether to turn the sterilization gas generator on or off. S400: If in step S300 it is determined that the water flow rate is zero or the water temperature value is not within the preset water temperature value range, then the sterilization gas generator is turned off. If in step S300 it is determined that the water flow rate is not zero and the water temperature is within the preset water temperature range, then the sterilization gas generator is started, and the concentration of sterilization gas generated by the sterilization gas generator is further controlled according to the preset correspondence between the water temperature and the sterilization gas concentration. S500: Repeat steps S100-S400.

[0011] In one embodiment, the water flow sensor includes a water flow generator. The electrical energy generated by the water flow generator is rectified and filtered to power the sampling circuit of the water flow sensor itself. Thus, the water flow sensor is constructed based on the power supply generated by the water flow generator. The water terminal control device further includes a lithium battery that can be used as a backup and a charging / power switching module. The charging / power switching module is used to switch the water flow sensor between lithium battery power supply and water flow generator power supply.

[0012] In one embodiment, the water terminal is specifically a pull-out faucet, which includes a pull-out head. The pull-out head has an internal air passage for delivering ozone and a water passage for delivering water. At least one outlet of the water passage is located on the bottom surface of the pull-out head and is equipped with a mixing chamber with a negative pressure self-priming mixing structure. The air passage outlet is connected to the mixing chamber. An aerator is provided in the mixing chamber. When water flows through the aerator, a negative pressure effect is created in the mixing chamber to draw the active bactericidal gas from the air passage into the mixing chamber and mix it with the water to form bactericidal water; and / or, The water terminal is specifically a pull-out faucet, which includes a pull-out head. The water terminal control device is integrated into the pull-out head. The water terminal control device achieves two-way wireless communication with the host wireless module of the sterilization gas preparation host through the water terminal wireless module. The water flow sensor includes a water flow generator, which is located in the water passage of the pull-out head. The pull-out head includes a housing. The water terminal display module and the touch control module are integrated into a single touch screen, which is embedded in the housing on the surface of the pull-out head.

[0013] In one embodiment, the water temperature signal is transmitted to the sterilizing gas generating host via wireless communication between the water terminal wireless module and the host wireless module. Before executing the control method of adaptively adjusting the sterilizing gas concentration based on water temperature, the control module further includes: when the control module does not receive the water temperature signal, setting the sterilizing gas generator to a closed state; when the control module receives the water temperature signal, setting the sterilizing gas generator to an open state; and when the sterilizing gas generator is in the open state, the control module executes the control method of adaptively adjusting the sterilizing gas concentration based on water temperature.

[0014] The technical solution provided by this invention has the following technical effects: This invention provides a sterilizing water preparation system that adaptively adjusts the concentration of sterilizing gas based on water temperature. It relates to the technical field of sterilizing water preparation devices and includes a sterilizing gas generator, a water supply system, a gas-liquid mixer, a gas passage, and a temperature sensor. The temperature sensor samples the water temperature signal in the water passage in real time. When the water temperature exceeds a certain range, the system automatically shuts down the sterilizing gas generator, thus avoiding energy waste due to insufficient sterilizing gas dissolution in the water and preventing the release of undissolved sterilizing gases such as ozone, which could harm human health. Furthermore, the system adaptively adjusts the concentration of sterilizing gas output from the generator based on water temperature, maintaining the final sterilizing water concentration within a reasonable and effective range to ensure the sterilization effect. It is economical, easy to operate, and offers high control accuracy, making it widely applicable to various sterilization applications. This invention achieves non-contact remote automatic / manual control through water temperature sensing or further combined with water flow sensing and audio sensing. Compared to traditional pressure / mechanical switch solutions, it features corrosion resistance, high reliability, and high control accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the bactericidal water preparation system according to the first embodiment of the present invention; Figure 2 This is a schematic diagram of the main unit of the sterilization water preparation system according to the first embodiment of the present invention; Figure 3 This is a full sectional view of the gas-liquid mixer according to the first embodiment of the present invention; Figure 4 This is a schematic diagram of the sterilization water preparation system of the first embodiment of the present invention with the temperature sensor omitted in another embodiment; Figure 5 This is a schematic diagram of the main unit of the bactericidal water preparation system according to the second embodiment of the present invention; Figure 6 This is a schematic diagram of the bactericidal water preparation system according to the third embodiment of the present invention; Figure 7 This is a schematic diagram of the main unit of the sterilization water preparation system according to the fourth embodiment of the present invention; Figure 8 This is a schematic diagram of the communication connection between the host control module and the water terminal control device of the sterilization water preparation system according to the fourth embodiment of the present invention. Figure 9 This is a schematic diagram of the structure of each module of the host unit in the sterilization water preparation system according to the fifth embodiment of the present invention; Figure 10 This is a perspective view of the pull-out faucet in the fifth embodiment of the present invention in the pulled-out state; Figure 11 This is a perspective view of the pull-out head according to the fifth embodiment of the present invention; Figure 12 This is a top view of the pull-out head according to the fifth embodiment of the present invention; Figure 13 yes Figure 12 Sectional view of section AA; Figure 14 yes Figure 12 A sectional view of section BB in the middle. Detailed Implementation

[0016] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] Example 1 Reference Figures 1-3 This embodiment provides a sterilization water preparation system, including a sterilization gas preparation host 10, a gas-liquid mixer 20, a faucet 30, a gas pipe 40, a water inlet pipe 50, a sterilization water pipe 60, and a temperature sensor 70. The sterilization gas preparation host 10 includes a control module 11, a sterilization gas generator 12, a power module 14, a display module 15, an air inlet channel 16, and an exhaust channel 17. The air inlet channel 16 and the exhaust channel 17 are respectively connected to the two ends of the sterilization gas generator 12. In this embodiment, the sterilization gas generator 12 is exemplified as an active gas generator. In addition, the active gas generator can also be a plasma generator or an ozone generator. The active gas generator is used to ionize oxygen or oxygen-containing air input through the air inlet channel 16 to generate active sterilization gases such as ozone, superoxide anions, active free radicals, and negative oxygen ions, and output them through the exhaust channel 17. (Refer to...) Figure 1 The intake passage 16, the exhaust passage 17, the air pipe 40, and the gas inlet 22 form a gas passage.

[0019] Reference Figure 3 The gas-liquid mixer 20 is a Venturi effect tube, having a liquid inlet 21, a gas inlet 22, and a gas-liquid mixing outlet 23. Further reference... Figure 1 as well as Figure 2The liquid inlet 21 of the gas-liquid mixer 20 is connected to the water inlet pipe 50, and the gas inlet 22 is connected to one end of the gas pipe 40. The other end of the gas pipe 40 is connected to the gas outlet channel 17 of the sterilizing gas generating host 10. The gas-liquid mixing outlet 23 of the gas-liquid mixer 20 is connected to the faucet 30 through the sterilizing water pipe 60. When water in the water inlet pipe 50 flows through the gas-liquid mixer 20, a negative pressure is generated at the gas inlet 22 due to the Venturi effect, thus forming a negative pressure gas pipe 40. This allows the sterilizing gas generated by the sterilizing gas generator 12 to be drawn into the gas-liquid mixer 20, where it is fully mixed with water and other liquids to form sterilizing water. This sterilizing water is then output to the faucet 30 for use via the gas-liquid mixing outlet 23 and the sterilizing water pipe 60. The gas-liquid mixer 20 is a known technology and will not be described in detail here.

[0020] The power module 14 is connected to the control module 11 and the display module 15, etc., to supply power to these components. The power module 14 may include an AC transformer power supply or a DC transformer power supply. The control module 11 is connected to the sterilizing gas generator 12. In this embodiment, the sterilizing gas generator 12 is exemplified as an active gas generator, the core of which includes a high-voltage discharge component. The control module 11 is used to control the working state of the high-voltage discharge component of the sterilizing gas generator 12, such as discharging or stopping, thereby controlling whether the active sterilizing gas is generated. The discharge component of the sterilizing gas generator 12 can generate a high-voltage discharge, thereby ionizing oxygen in the air into active sterilizing gases such as ozone. Ozone and oxygen have different solubilities in solvent media. For example, in water solvent, the solubility of ozone is more than 10 times that of oxygen, so ozone gas can quickly dissolve in water to form sterilizing water. In other applications, the sterilizing gas generator 12 can also be a plasma generator or an active oxygen generator. The display module 15 can be used to display the concentration of sterilizing gases, such as ozone concentration, and information such as water temperature and flow rate, so that users can easily obtain the status of water use.

[0021] Although this embodiment uses a faucet 30 pipe as an example for illustration, it is not limited thereto. This sterilizing water preparation system can also be used in the water supply pipes of washing machines or bathroom fixtures to prepare sterilizing water for use, for example. Figure 4 The image shows a sterilization water preparation system applied to the shower head water path 80.

[0022] Reference Figure 1In this embodiment, the gas-liquid mixer 20 is located below the countertop, and for aesthetic reasons, the sterilization gas generator 10 is typically positioned below the faucet 30. After water usage ceases, water in the faucet 30 and its pipes may flow backward along the sterilization water pipe 60 due to gravity or other factors, gradually seeping into the sterilization gas generator 10 via the gas pipe 40, causing damage to the generator. This problem can be solved by adding a one-way valve to the gas pipe 40 and / or the sterilization water pipe 60.

[0023] Because the solubility of bactericidal gases such as ozone in water is temperature-dependent, when the temperature exceeds a certain range, such as above 60°C, the solubility of these gases in water decreases significantly, even approaching zero. This results in the disinfected water not achieving the desired disinfection effect, and ozone and other bactericidal gases can easily escape directly from the water supply system, causing harm to the human respiratory system. However, existing bactericidal gas generation units typically produce a fixed concentration of bactericidal gas and cannot automatically adjust the concentration according to actual needs. This causes fluctuations in the concentration of the disinfected water due to changes in water temperature, resulting in unstable disinfection effects. Therefore, in this embodiment, a temperature sensor 70 is also installed in the water circuit to sample the water temperature signal. The water path here includes a sterilization water pipe 60. In this embodiment, the control module 11 in the sterilization gas preparation host 10 is used to execute a control method that adaptively adjusts the concentration of sterilization gas according to the water temperature, based at least on the water temperature signal from the temperature sensor 70. This method automatically adjusts the concentration of sterilization gas produced by the sterilization gas preparation host according to the water temperature, thereby maintaining the concentration of the sterilization water within a reasonable and effective range to ensure the sterilization effect of the sterilization water. The control method executed by the control module 11, which adaptively adjusts the concentration of sterilization gas according to the water temperature, includes the following steps: S1: The water temperature signal is sampled by the temperature sensor 70; S2: Filter and reduce noise on the sampled water temperature signal; In the above embodiment, the filtering and noise reduction of the sampled water temperature signal can be achieved by a filter, such as a high-pass filter, a low-pass filter, or a band-pass filter; In other embodiments, software algorithms are also used for filtering; For example, the sampled water temperature signal data is subjected to moving average filtering and interpolation calculation to obtain the current water temperature value, thereby making the water temperature value more accurate. S3: Determine whether the water temperature value is within the preset water temperature range based on the water temperature signal, and use this to determine whether to turn the sterilization gas generator 12 on or off. S4: If in step S3 it is determined that the water temperature value is not within the preset water temperature value range, then the sterilization gas generator 12 is turned off. If in step S3 it is determined that the water temperature value is within the preset water temperature value range, then the sterilization gas generator 12 is turned on, and the concentration of sterilization gas generated by the sterilization gas generator 12 is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S5: Repeat steps S1-S4.

[0024] The method for controlling the concentration of bactericidal gas according to water temperature provided in this embodiment can shut down the bactericidal gas generator 12 when the water temperature exceeds a certain range, thereby avoiding energy waste caused by the failure of the bactericidal gas dissolution rate in the water, and at the same time preventing the escape of bactericidal gases such as ozone that are not dissolved in water and causing harm to human health.

[0025] In step S4 above, controlling the concentration of the sterilizing gas generated by the sterilizing gas generator 12 specifically includes: The operating power of the sterilizing gas generator 12 is adjusted to control the concentration of the sterilizing gas generated by the generator 12; and / or, the duty cycle of the pulse signal controlling the sterilizing gas generator 12 is adjusted to control the concentration of the sterilizing gas generated by the generator 12. This combination of methods improves the accuracy of the sterilizing gas concentration adjustment and expands the adjustment range of the sterilizing gas concentration.

[0026] Adjust the operating power of the sterilizing gas generator 12, or more specifically, adjust the operating voltage of the sterilizing gas generator 12, in order to control the concentration of the sterilizing gas generated by the sterilizing gas generator 12.

[0027] Example 2 Reference Figure 5 This embodiment is a further improvement upon Embodiment 1. In this embodiment, the sterilizing gas generating host 10a also includes an audio sensor 13. (See reference...) Figure 5In this embodiment, the air intake channel 16, exhaust channel 17, air pipe 40, and gas inlet 22 form a gas passage. An audio sensor 13 is located within the gas passage; specifically, the audio sensor 13 can be located on the side wall of the gas passage or inside the gas passage. In this embodiment, the audio sensor 13 is located on the side wall of the air intake channel 16, thus making audio sampling more accurate. Regarding the specific positioning and installation method of the audio sensor 13, it can be positioned and installed inside the housing of the sterilization gas preparation host 10, or integrated onto the circuit board of the sterilization gas preparation host 10, thus serving as the positioning and installation method for the audio sensor 13. When liquids such as water flow through the gas-liquid mixer 20, under the action of the Venturi effect, when mixed with the sterilization gas, an audio signal with a frequency of tens to thousands of hertz will be generated; this audio signal is transmitted through the gas passage and captured by the audio sensor 13 located on the side wall, causing the audio sensor 13 to generate an audio signal. Audio sensor 13 is electrically connected to control module 11. Control module 11 can sample audio signals through audio sensor 13, and perform filtering, noise reduction, amplification, and other processing on the sampled audio signals. Based on the processed audio signals, it determines whether the user has turned on water-using equipment such as faucet 30. If control module 11 determines that the user has turned on water-using equipment, it automatically controls the sterilization gas generator 12 to start to generate sterilization gas, which is then used to make sterilized water.

[0028] In this embodiment, the audio signal in the gas passage can be sampled by the audio sensor 13, and the processed audio signal can be used to determine whether the user has turned on the water tap 30 or other water-using equipment. If the control module 11 determines that the user has turned on the water-using equipment, it will automatically control the sterilizing gas generator 12 to start to generate sterilizing gas based on the water temperature signal from the temperature sensor 70, thereby producing sterilized water for use. The control method executed by the control module 11, which adaptively adjusts the concentration of sterilizing gas according to the water temperature, has been optimized and includes the following steps: S10: The audio signal in the gas passage is sampled by the audio sensor 13, and the water temperature signal is sampled by the temperature sensor 70; S20: Performs filtering and noise reduction processing on the sampled audio signal and water temperature signal; S30: Based on the processed audio signal, determine whether the audio signal includes a valid water flow audio signal, and based on the water temperature signal, determine whether the water temperature value is within the preset water temperature value range, and thereby determine whether to turn the sterilization gas generator 12 on or off. S40: If in step S30 it is determined that the audio signal does not include a valid water flow audio signal, or the water temperature value is not within the preset water temperature value range, then the sterilization gas generator 12 is turned off. If in step S30 it is determined that the audio signal includes a valid water flow audio signal and the water temperature value is within the preset water temperature range, then the sterilization gas generator 12 is started, and the concentration of sterilization gas generated by the sterilization gas generator 12 is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S50: Repeat steps S10-S40.

[0029] This embodiment, through the comprehensive judgment of water temperature and audio signals, can more accurately and automatically control the opening and closing of the sterilizing gas generator 12. Furthermore, it can adaptively adjust the concentration of the sterilizing gas output by the generator 12 according to the water temperature, thereby maintaining the final sterilized water concentration within a reasonable and effective range to ensure the sterilization effect. It also offers economic benefits and ease of operation. Moreover, this embodiment achieves remote automatic control through non-contact audio sensing and water temperature sensing, which, compared to traditional pressure / mechanical switch solutions, offers advantages such as corrosion resistance, high reliability, and high control precision.

[0030] All other parts not mentioned in this embodiment are the same as in Embodiment 1, and will not be repeated here.

[0031] Example 3 See Figure 6 The layout of the air pipe and gas-liquid mixer in this embodiment differs from that in Embodiment 1. In this embodiment, the gas-liquid mixer 20a is located at the outlet of the faucet 30a, and the air pipe 40 extends to the tabletop and is connected to the gas inlet of the gas-liquid mixer 20a. This achieves complete separation of the water and air paths, completely preventing liquid from seeping into the sterilization gas preparation host 10 and significantly improving equipment safety. All other parts not mentioned in this embodiment are consistent with Embodiment 1 and will not be repeated here.

[0032] Example 4 See Figure 7 as well as Figure 8 The pipe layout in this embodiment differs from that in embodiment 1. In this embodiment, both the air pipe 40 and the water inlet pipe 50 extend into the pipe body of the faucet 30b, forming a pipe-in-pipe structure. The gas-liquid mixer 20b is located at the water outlet of the faucet 30b, thereby achieving complete separation of the water path and the air path. This can completely prevent liquid from seeping into the sterilization gas preparation host 10b, significantly improving equipment safety.

[0033] Furthermore, in this embodiment, the faucet 30b serves as a water-using terminal, and a water-using terminal control device 31 is installed within the faucet 30b. The water-using terminal control device 31 communicates with the sterilization gas generating host 10b via wireless or wired means. For example, see... Figure 7 as well as Figure 8In this embodiment, the sterilizing gas preparation host 10b is equipped with a host wireless module 18, and the water terminal control device 31 includes a water terminal wireless module 72, thereby enabling communication between the sterilizing gas preparation host 10b and the water terminal control device 31 through the wireless modules. The wireless communication method can be selected as 315 MHz / 433 MHz single-line communication or bidirectional communication functions such as 2.4G and BLE. In this embodiment, the sterilizing gas preparation host 10b and the water terminal control device 31 achieve bidirectional wireless communication through the wireless modules.

[0034] The water terminal control device 31 also includes a control unit MCU 76, a temperature sensor 70, a water flow sensor 77, a water terminal display module 71, a touch module 73, a charging / power switching module 74, and a lithium battery 75. The control unit MCU 76 is electrically connected to the temperature sensor 70, the water flow sensor 77, the water terminal display module 71, the water terminal wireless module 72, the touch module 73, and the charging / power switching module 74. The control unit MCU 76 can receive sterilization gas concentration parameter information transmitted back by the sterilization gas generating host 10b through the wireless module, or further, including but not limited to, parameter information such as water flow rate or water temperature, and display the above parameter information on the water terminal display module 71, so that the user can more intuitively grasp the water parameter information.

[0035] Furthermore, the water terminal display module 71 and the touch control module 73 are integrated into one unit, such as through a touch screen. The touch control module 73 allows for manual touch control to remotely activate the sterilizing gas generator 12, or further, to remotely adjust the concentration of the sterilizing gas generated by the generator 12. This provides operational convenience and allows users to easily control the concentration of the sterilizing gas, enabling them to more accurately obtain the desired concentration and sterilization effect of the sterilized water.

[0036] The water flow sensor 77 can be used to acquire water flow parameters in a water circuit. The water flow sensor 77 includes a water flow generator, an ultrasonic flow meter, or a Hall effect flow meter, etc.

[0037] In this embodiment, the water flow sensor 77 is shown to be located inside the faucet 30b. Of course, in some other embodiments, the water flow sensor 77 can also be located on the water inlet pipe 50, that is, the water flow sensor 77 can be located in the water supply pipeline. The water flow parameter can be converted into a water flow velocity parameter through simple conversion. Therefore, those skilled in the art can easily understand that the water flow parameter in this embodiment can be replaced with the water flow velocity parameter.

[0038] The control unit MCU 76 controls the water flow sensor 77 to sample the water flow signal. After rectification and filtering, the sampled water flow signal is sent to the sterilization gas generator 10b via the water terminal wireless module 72. The control module 11 of the sterilization gas generator 10b determines whether the user has turned on the water tap 30b or other water-using equipment based on the processed water flow signal. If the control module 11 determines that the user has turned on the water-using equipment, it automatically controls the sterilization gas generator 12 to start according to the preset sterilization gas concentration value to generate sterilization gas, which is then used to make sterilized water for use. This achieves the technical effect of simultaneously turning on the water flow and activating the sterilization gas generator, forming synchronous gas-water mixing and quickly forming sterilized water, which is easy to operate.

[0039] In this embodiment, the water flow sensor 77 includes a water flow generator as an example. The water flow drives the impeller of the generator to rotate, causing the rotor inside the generator to rotate and generate alternating current. The frequency of the generated alternating current is proportional to the speed of the impeller. By measuring the frequency of the alternating current signal, the current water flow rate can be determined, and the sterilization gas generator 12 can be started or stopped accordingly.

[0040] Furthermore, when the water flow sensor 77 includes a water flow generator, the electrical energy generated by the water flow generator, in addition to providing a water flow signal, can also be rectified and filtered to power the sampling circuit and other devices of the water flow sensor 77 itself. Thus, the water flow sensor 77 is constructed based on the power supply generated by the water flow generator. The water terminal control device 31 can also be equipped with a lithium battery 75 that can be used as a backup and a charging / power switching module 74. When the water flow rate is too low and the power generation of the water flow generator is insufficient, the sampling circuit and other devices of the water flow sensor 77 can be switched to be powered by the lithium battery 75 through the charging / power switching module 74. The electrical energy generated by the water flow generator can be switched through the charging / power switching module 74 to charge the lithium battery 75, thereby providing multiple power supply methods and realizing maintenance-free operation of the lithium battery 75, and also making full use of electrical energy.

[0041] Reference Figure 7 as well as Figure 8 In this embodiment, the control module 11 in the sterilizing gas preparation host 10b is used to execute a control method for adaptively adjusting the concentration of sterilizing gas based on water temperature, at least according to the water flow signal from the water flow sensor 77, including the following steps: S100: The water flow signal in the water path is sampled by the water flow sensor 77; and the water temperature signal is sampled by the temperature sensor 70. S200: The sampled water flow and water temperature signals are filtered and denoised. In the above embodiment, the filtered and denoised water flow and water temperature signals can be implemented by a filter, such as a high-pass filter, a low-pass filter, or a band-pass filter. In other embodiments, software algorithms are also used for filtering. S300: Based on the processed water flow signal, determine whether the water flow is zero, and based on the water temperature signal, determine whether the water temperature value is within the preset water temperature value range, and use this to determine whether to turn the sterilization gas generator 12 on or off. S400: If in step S300 it is determined that the water flow rate is zero or the water temperature value is not within the preset water temperature value range, then the sterilization gas generator 12 is turned off. If in step S300 it is determined that the water flow rate is not zero and the water temperature is within the preset water temperature range, then the sterilization gas generator 12 is started, and the concentration of sterilization gas generated by the sterilization gas generator 12 is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S500: Repeat steps S100-S400.

[0042] By comprehensively judging the water temperature and water flow signals, the sterilizing gas generator 12 can be automatically turned on or off more accurately. Furthermore, the concentration of the sterilizing gas output by the generator 12 can be adaptively adjusted according to the water temperature, thereby maintaining the final sterilized water concentration within a reasonable and effective range to ensure the sterilization effect. This approach is also economical and easy to operate. In addition, this embodiment achieves non-contact remote automatic / manual control through water flow and temperature sensing, which, compared to traditional pressure / mechanical switch solutions, offers advantages such as corrosion resistance, high reliability, and high control precision.

[0043] Example 5 See Figures 9-14 The faucet in this embodiment differs from that in embodiment 4. In this embodiment, a pull-out faucet 30c is used as the water terminal. The pull-out faucet 30c includes a pull-out head 9 and a pull-out tube 33. The pull-out tube 33 is retractable and pull-out connected to the faucet 30c, and its outer end is connected to the pull-out head 9. In this embodiment, a water terminal control device 31 is integrated in the pull-out head 9.

[0044] See details Figures 9-14The pull-out head 9 is equipped with a pull-out head air passage 901 for conveying active bactericidal gases such as ozone and a pull-out head water passage 902 for conveying water flow. At least one outlet end of the pull-out head water passage 902 is provided with a mixing chamber 94 with a negative pressure self-priming mixing structure. That is, the mixing chamber 94 is provided so that when water flows into the mixing chamber 94, a negative pressure can be generated in the mixing chamber 94. In this embodiment, the specific implementation is as follows: an aerator 96 is provided in the mixing chamber 94, and the outlet of the pull-out head air passage 901 is connected to the mixing chamber 94. When the water flows through the aerator 96, a negative pressure is formed in the mixing chamber 94. The negative pressure adsorbs active bactericidal gases such as ozone in the pull-out head air passage 901 and mixes them with the water flow in the aerator 96 in the mixing chamber 94 to form bactericidal water.

[0045] The aerator 96 serves two purposes: firstly, it generates negative pressure for air intake; secondly, it allows for more thorough mixing of the water flow and the active bactericidal gas. Alternatively, in other embodiments, the aerator 96 may not be used to generate negative pressure. In such cases, the mixing chamber 94 can be designed as a flared structure. When the water flows through the flared mixing chamber 31, a negative pressure adsorption zone is formed, thereby adsorbing the active bactericidal gas output from the pull-out head air passage 901 and mixing it with the water flow.

[0046] Reference Figure 13 The pull-out head 9 is equipped with a water path switching valve 93. The lower end of the pull-out head 9 has a first water path outlet 903 and a second water path outlet 904. The water path switching valve 93 can switch the flow direction of the water path 902 of the pull-out head. Specifically, it switches between the first water path outlet 903 and the second water path outlet 904. One output branch flows out from the first water path outlet 903 to form shower water, while the other output branch flows through the aerator 96 and flows out from the second water path outlet 904 to form sparkling water with a disinfecting function. This water path switching valve 93 can use currently known water path switching valve structures. In this embodiment, the pull-out head 9 can freely switch between shower water and sparkling water; the air path and water path are separated, allowing for free selection of disinfected and non-disinfected water, providing more options.

[0047] Because the sterilizing gas generator 12 is susceptible to water vapor and moisture, this design incorporates the gas-liquid mixer at the outlet end of the pull-out head 9. This design prevents low-pressure or low-flow water from flowing back into the sterilizing gas generator 12 and damaging components, and eliminates the need for a one-way valve in the gas path. Positioning the mixer at the outlet end solves the problem of low-pressure water backflow and provides the advantages of zero gas residue in the water pipes and high mixing efficiency. It also prevents gas or liquid residue from exceeding safety limits inside the water pipes, achieving standard gas-liquid separation and simplifying installation and operation.

[0048] In this embodiment, the pull-out head 9 uses negative pressure to adsorb active bactericidal gases, mixing them into disinfectant water of a certain concentration. The water flow rate is directly proportional to the negative pressure in the mixing chamber 94; the higher the water flow rate, the greater the negative pressure generated in the mixing chamber 94, and the faster the active bactericidal gases enter the mixing chamber 94. Conversely, the lower the water flow rate, the smaller the negative pressure, and the slower the active bactericidal gases enter the mixing chamber 94. Therefore, the pull-out head 9 can automatically adjust the input speed of the active bactericidal gases according to the water flow rate, ensuring that the output water contains a certain concentration of active bactericidal gases. No waiting is required; simply turning on the water flow immediately forms bubble water with a certain concentration of active bactericidal gases, achieving the function of rapidly generating disinfectant water; no additional air pump or other pressurization is needed. This structural design has the advantages of uniform mixing, high efficiency, strong negative pressure suction, and stable operation.

[0049] See Figures 11-14 The pull-out head 9 includes a housing 91, on which a water terminal control device 31 is installed. This water terminal control device 31 is the same as the water terminal control device 31 described in Embodiment 4. Specifically, the water terminal control device 31 includes a control unit MCU 76, a water terminal wireless module 72, a temperature sensor 70, a water flow sensor 77, a water terminal display module 71, a touch module 73, a charging / power switching module 74, and a lithium battery 75.

[0050] In this embodiment, the water flow sensor 77 is specifically a water flow generator 95 installed in the water passage 902 of the pull-out head 9. The water flow generator 95 can be used to monitor whether there is water flow in the mixing chamber. Specifically, the water flow drives the impeller of the water flow generator 95 to rotate, causing the rotor inside the water flow generator 95 to rotate and generate alternating current. The frequency of the generated alternating current is proportional to the impeller speed. By measuring the frequency of the alternating current signal, the current water flow rate can be determined, and the sterilization gas generator 12 can be started or stopped accordingly.

[0051] The control unit MCU76 can control the water flow generator 95 to sample the water flow signal. After rectification and filtering, the sampled water flow signal is sent to the sterilization gas preparation host 10b via the water terminal wireless module 72. The control module 11 of the sterilization gas preparation host 10b determines whether the user has turned on the water tap 30b or other water-using equipment based on the processed water flow signal. If the control module 11 determines that the user has turned on the water-using equipment, it automatically controls the sterilization gas generator 12 to start according to the preset sterilization gas concentration value to generate active sterilization gas, thereby producing sterilized water for use. This achieves the technical effect of simultaneously turning on the water flow and activating the sterilization gas generator, forming synchronous gas-water mixing and quickly forming sterilized water, which is easy to operate.

[0052] A water terminal display module 71 is installed on the housing 91. The water terminal display module 71 can be integrated with other components in the water terminal control device 31. For example, the water terminal display module 71 and the touch module 73 are integrated into a single touch screen. The touch screen is embedded in the housing on the surface of the pull-out head 9, allowing users to intuitively grasp water parameter information and easily perform touch operations. The touch module 73 is used to receive control commands input by the user via touch and transmits the control commands to the sterilization gas preparation host 10b through the water terminal wireless module 72. This allows for remote control of the working status or parameters of the sterilization gas preparation host 10b, such as remotely controlling the switch of the sterilization gas preparation host 10b or adjusting the concentration of the sterilization gas, making control more convenient. Furthermore, the control unit MCU76 can receive sterilization gas concentration parameter information transmitted back from the sterilization gas generating host 10b via a wireless module, or further, including but not limited to, parameters such as water flow rate or water temperature, and display the above parameter information on the water terminal display module 71. This allows users to more intuitively grasp the water usage parameter information without the need for external wiring, effectively solving the pain point of the pull-out head 9 being unable to be wired. This embodiment achieves non-contact remote wireless automatic / manual control through water flow sensing and water temperature sensing, which, compared with traditional pressure / mechanical switch solutions, has the characteristics of corrosion resistance, high reliability, and high control accuracy.

[0053] Furthermore, the water terminal display module 71 is also equipped with a rechargeable battery such as a lithium battery 75. Both the water flow generator 95 and the lithium battery 75 can be electrically connected to the water terminal display module 71 to transmit electrical energy. The charging / power switching module 74 can switch the water terminal display module 71 and other devices to be powered by the lithium battery 75 when the water flow rate is too low and the power generation of the water flow generator 95 is insufficient. The electrical energy generated by the water flow generator 95 can be switched by the charging / power switching module 74 to charge the lithium battery 75, thereby providing multiple power supply methods and achieving maintenance-free operation of the lithium battery 75, and also making full use of electrical energy.

[0054] In this embodiment, the control unit MCU 76 can control the temperature sensor 70 to sample the water temperature signal. The sampled water temperature signal is transmitted to the sterilization gas generating host 10b via wireless communication between the water terminal wireless module 72 and the host wireless module 18. Furthermore, the control unit MCU 76 can control the water flow sensor 77 to sample the water flow signal. When the control unit MCU 76 detects that the water flow is zero through the water flow sensor 77, it controls the temperature sensor 70 to stop collecting the water temperature signal; when the control unit MCU 76 detects that the water flow is not zero through the water flow sensor 77, it controls the temperature sensor 70 to start collecting the water temperature signal. When the control module 11 of the sterilization gas generating host 10b does not receive the water temperature signal, it puts the sterilization gas generator 12 into a closed state; when the control module 11 receives the water temperature signal, it puts the sterilization gas generator 12 into a turned-on state. Before executing the control method of adaptively adjusting the concentration of sterilizing gas according to water temperature, the control module 11 further includes: when the control module 11 does not receive the water temperature signal, it puts the sterilizing gas generator 12 into a closed state; when the control module 11 receives the water temperature signal, it puts the sterilizing gas generator 12 into an open state. When the sterilizing gas generator 12 is in the open state, the control module 11 executes the control method of adaptively adjusting the concentration of sterilizing gas according to water temperature. This invention innovatively controls the start and stop of the sterilizing gas generator 12 through a water temperature signal, realizing non-contact remote automatic control of the sterilizing gas preparation host 10b. Compared with traditional pressure / mechanical switch solutions, it has the characteristics of corrosion resistance and high reliability. Furthermore, the sterilizing gas generator is simultaneously turned on when the water flow is turned on, forming synchronous mixing of gas and water, quickly forming sterilized water, and offering ease of operation. This control method is not limited to the pull-out head 9 of this embodiment, but can also be applied to faucets that use wireless transmission of water temperature and other signals, as described in Embodiment 4. For other parts of the water terminal control device 31 in this embodiment that are not mentioned, they are the same as in embodiment 4, and will not be described again here.

[0055] In some other embodiments, the water terminal display module 71, touch module 73, and water terminal wireless module 72 can also be externally mounted relative to the pull-out head 9. That is, the water terminal display module 71, touch module 73, and water terminal wireless module 72 are separate from the pull-out head 9 and form an independent structure. This independent structure can be a wireless remote control device or a wall-mounted wireless control box, which can wirelessly connect with the sterilization gas preparation host 10b for control and parameter display.

[0056] The present invention allows the negative pressure suction function to be activated by turning on a small water flow, achieving the purpose of efficiently and stably mixing sterilizing gases. The advantage of designing the mixer at the end of the water outlet is that it is reasonable and easy to use. This design can prevent residual water in the water pipe from slowly seeping back into the machine under low pressure and causing damage (currently, no one-way valve for ozone generators on the market can resist the problem of low-pressure water backflow, and the present invention can solve this problem), and prevent sterilizing gases from remaining inside the water pipe.

[0057] At the same time, it can automatically draw in sterilizing gas under negative pressure and mix it. The main unit does not require an air pump to pressurize and mix it, which is more effective than ordinary jet injectors. It is also more reasonably designed, easier to install, and more convenient to use.

[0058] The pull-out head 9 of this invention can be installed on any faucet that requires sterilization function or integrated water purifier.

[0059] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A sterilizing water preparation system that adaptively adjusts the concentration of sterilizing gas according to water temperature, characterized in that, The device includes a sterilizing gas generating unit, a water supply system, a gas-liquid mixer, a gas passage, and a temperature sensor. The sterilizing gas generating unit includes a sterilizing gas generator and a control module. The water supply system includes a water terminal and a water supply pipeline. The temperature sensor is installed in the water supply pipeline to acquire a water temperature signal. Based on the water temperature signal, the control module is used to execute a control method that adaptively adjusts the concentration of the sterilizing gas according to the water temperature, so as to control the concentration of the sterilizing gas generated by the sterilizing gas generator, and output sterilized water containing the sterilizing gas with the controlled adjusted concentration through the water supply system.

2. The sterilization water preparation system according to claim 1, characterized in that: The control method implemented by the control module to adaptively adjust the concentration of sterilizing gas based on the water flow rate specifically includes the following steps: S1: The water temperature signal is sampled using a temperature sensor; S2: Filter and reduce noise from the sampled water temperature signal; S3: Determine whether the water temperature value is within the preset water temperature range based on the water temperature signal, and use this to determine whether to turn the sterilization gas generator on or off. S4: If in step S3 it is determined that the water temperature value is not within the preset water temperature value range, then the sterilization gas generator is turned off. If in step S3 it is determined that the water temperature value is within the preset water temperature value range, then the sterilization gas generator is turned on, and the concentration of sterilization gas generated by the sterilization gas generator is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S5: Repeat steps S1-S4.

3. The sterilization water preparation system according to claim 1, characterized in that: In step S2 above, the sampled water temperature signal is filtered and denoised, specifically including: performing moving average filtering and interpolation calculation on the sampled water temperature signal data to obtain the current water temperature value.

4. The sterilization water preparation system according to claim 1, characterized in that: In step S4 above, controlling the concentration of the sterilizing gas generated by the sterilizing gas generator specifically includes: Adjust the operating power of the sterilizing gas generator to control the concentration of the sterilizing gas generated by the sterilizing gas generator; and / or adjust the duty cycle of the pulse signal controlling the sterilizing gas generator to control the concentration of the sterilizing gas generated by the sterilizing gas generator.

5. The sterilization water preparation system according to claim 1, characterized in that: The gas passage is equipped with an audio sensor; the control method executed by the control module to adaptively adjust the concentration of the bactericidal gas according to the water temperature specifically includes the following steps: S10: The audio signal in the gas passage is sampled by an audio sensor, and the water temperature signal is sampled by a temperature sensor; S20: Performs filtering and noise reduction processing on the sampled audio signal and water temperature signal; S30: Based on the processed audio signal, determine whether the audio signal includes a valid water flow audio signal, and based on the water temperature signal, determine whether the water temperature value is within the preset water temperature value range, and use this to determine whether to turn the sterilization gas generator on or off. S40: If in step S30 it is determined that the audio signal does not include a valid water flow audio signal, or the water temperature value is not within the preset water temperature value range, then the sterilization gas generator is turned off. If in step S30 it is determined that the audio signal includes a valid water flow audio signal and the water temperature value is within the preset water temperature value range, then the sterilization gas generator is started, and the concentration of sterilization gas generated by the sterilization gas generator is further controlled according to the preset correspondence between the water temperature value and the sterilization gas concentration. S50: Repeat steps S10-S40.

6. The sterilization water preparation system according to claim 1, characterized in that: The sterilizing gas preparation host further includes a host wireless module; the water supply system further includes a water terminal control device, which includes a control unit MCU, a water terminal wireless module, a water terminal display module, and a touch module. The control unit MCU is electrically connected to the water terminal wireless module, the water terminal display module, and the touch module. The water terminal wireless module and the host wireless module achieve wireless bidirectional communication. The control unit MCU can receive sterilizing gas concentration parameter information transmitted back by the sterilizing gas preparation host through the wireless module and display the sterilizing gas concentration parameter information on the water terminal display module.

7. The sterilization water preparation system according to claim 6, characterized in that: The sterilization water preparation system further includes a water flow sensor, which is installed in the water supply pipeline to acquire water flow signals. The water flow sensor is electrically connected to the control unit MCU. The control method executed by the control module to adaptively adjust the concentration of sterilization gas according to the water temperature specifically includes the following steps: S100: Samples the water flow signal in the water circuit through a water flow sensor; and samples the water temperature signal through a temperature sensor; S200: Performs filtering and noise reduction processing on the sampled water flow and water temperature signals; S3 00: Based on the processed water flow signal, determine whether the water flow is zero, and based on the water temperature signal, determine whether the water temperature value is within the preset water temperature range, and use this to determine whether to turn the sterilization gas generator on or off. S400: If in step S300 it is determined that the water flow rate is zero or the water temperature value is not within the preset water temperature value range, then the sterilization gas generator is turned off. If in step S300 it is determined that the water flow rate is not zero and the water temperature is within the preset water temperature range, then the sterilization gas generator is started, and the concentration of sterilization gas generated by the sterilization gas generator is further controlled according to the preset correspondence between the water temperature and the sterilization gas concentration. S500: Repeat steps S100-S400.

8. The sterilization water preparation system according to claim 7, characterized in that: The water flow sensor includes a water flow generator. The electrical energy generated by the water flow generator is rectified and filtered to power the sampling circuit of the water flow sensor itself. Thus, the water flow sensor is constructed based on the power supply generated by the water flow generator. The water terminal control device further includes a lithium battery that can be used as a backup and a charging / power switching module. The charging / power switching module is used to switch the water flow sensor between lithium battery power supply and water flow generator power supply.

9. The sterilization water preparation system according to claim 7, characterized in that: The water terminal is specifically a pull-out faucet, which includes a pull-out head. The pull-out head has an internal air passage for delivering ozone and a water passage for delivering water. At least one outlet of the water passage is located on the bottom surface of the pull-out head and is equipped with a mixing chamber featuring a negative pressure self-priming mixing structure. The air passage outlet is connected to the mixing chamber. An aerator is installed in the mixing chamber. When water flows through the aerator, a negative pressure effect is created in the mixing chamber to draw the active bactericidal gas from the air passage into the mixing chamber and mix it with the water to form bactericidal water; and / or, The water terminal is specifically a pull-out faucet, which includes a pull-out head. The water terminal control device is integrated into the pull-out head. The water terminal control device achieves two-way wireless communication with the host wireless module of the sterilization gas preparation host through the water terminal wireless module. The water flow sensor includes a water flow generator, which is located in the water passage of the pull-out head. The pull-out head includes a housing. The water terminal display module and the touch control module are integrated into a single touch screen, which is embedded in the housing on the surface of the pull-out head.

10. The sterilization water preparation system according to claim 6, characterized in that: The water temperature signal is transmitted to the sterilizing gas generating host via wireless communication between the water terminal wireless module and the host wireless module. Before executing the control method of adaptively adjusting the sterilizing gas concentration according to the water temperature, the control module further includes: when the control module does not receive the water temperature signal, setting the sterilizing gas generator to a closed state; when the control module receives the water temperature signal, setting the sterilizing gas generator to a turned-on state; when the sterilizing gas generator is in the turned-on state, the control module executes the control method of adaptively adjusting the sterilizing gas concentration according to the water temperature.

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