Ozone water generator

Abstract

The utility model relates to an ozone water generator. The ozone water generator provided by the embodiment of the utility model comprises: a TDS sensor configured to detect an aqueous solution before conversion in a waterway of the ozone water generator so as to generate and output a water regimen signal; the water regimen signal comprises a current TDS value of the water solution before conversion; the electrolysis adjusting module is configured to adjust the current electrolysis power to target electrolysis power corresponding to the current TDS value according to the water regimen signal and output the target electrolysis power; and the ozone conversion module is configured to electrolyze the water solution before conversion under the driving of the target electrolysis power so as to obtain the converted water solution of which the ozone concentration is stabilized within a preset range or stabilized at a preset value. According to the embodiment of the invention, ozone water with stable ozone concentration can still be obtained in different water quality environments, and the disinfection effect is improved.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to an ozone water generator. Background Art

[0002] At present, the ozone water generator will electrolyze to produce ozone water as long as water flows through it. It does not take into account the differences in water quality in different regions, such as the difference in TDS (Total Dissolved Solids), which affects the concentration of ozone water. This causes differences in the concentration of ozone water in different water quality environments, which in turn affects the disinfection effect.

[0003] Therefore, given the differences in water quality across regions, it is crucial to ensure the stability of ozone water concentration. Utility Model Content

[0004] In view of this, an embodiment of the present application provides an ozone water generator to solve at least one problem existing in the background technology.

[0005] The present application provides an ozone water generator, which comprises:

[0006] A TDS sensor is configured to detect the aqueous solution before conversion in the water path of the ozone water generator to generate and output a water condition signal; the water condition signal includes a current TDS value of the aqueous solution before conversion;

[0007] an electrolysis regulating module, configured to adjust the current electrolysis power to a target electrolysis power corresponding to the current TDS value and output the target electrolysis power according to the water condition signal; and

[0008] The ozone conversion module is configured to electrolyze the aqueous solution before conversion under the drive of the target electrolysis power to obtain the aqueous solution after conversion with the ozone concentration stabilized within a preset range or at a preset value.

[0009] In an optional implementation manner, the target electrolysis power corresponding to the current TDS value is configured to be determined according to a preset corresponding relationship; the preset corresponding relationship includes:

[0010] The multiple interval ranges of TDS values ​​correspond to different target electrolysis powers, and the smaller the TDS value, the greater the target electrolysis power.

[0011] In an optional embodiment, the target electrolysis power is configured to be determined according to the target electrolysis current;

[0012] When the current TDS value is greater than or equal to 0 and less than or equal to 200 mg / L, the target electrolysis current is a first preset current value;

[0013] When the current TDS value is greater than 200 mg / L and less than or equal to 500 mg / L, the target electrolysis current is a second preset current value;

[0014] When the current TDS value is greater than 500 mg / L and less than or equal to 1000 mg / L, the target electrolysis current is a third preset current value;

[0015] When the current TDS value is greater than 1000 mg / L, the target electrolysis current is a fourth preset current value;

[0016] The first preset current value, the second preset current value, the third preset current value and the fourth preset current value decrease in sequence.

[0017] In an optional embodiment, the electrolysis regulation module includes a processor and a voltage and current regulation circuit;

[0018] The processor is configured to generate and output a selection signal according to the interval range of the current TDS value, so that each interval range corresponds to a selection signal;

[0019] The voltage and current regulating circuit is configured to generate different voltage signals in a one-to-one correspondence according to different selection signals to obtain and output different target electrolysis powers.

[0020] In an optional implementation, the electrolysis regulation module is further configured to determine the non-reversal-reversal time ratio of the target electrolysis power according to the current TDS value.

[0021] In an optional implementation, the voltage and current regulating circuit includes an inverting circuit;

[0022] The processor is further configured to generate and output a group of inversion control signals corresponding to any selection signal, so that each selection signal corresponds to a group of inversion control signals;

[0023] The inversion circuit is configured to switch the direction of the output target electrolysis current under the control of each set of inversion control signals to obtain a non-inversion-inversion time ratio and a current value of the target electrolysis current corresponding to the current TDS value.

[0024] In an optional implementation, the inversion circuit includes a voltage stabilizing circuit and an inversion control circuit;

[0025] The voltage stabilization circuit is configured to quickly convert any voltage signal and stabilize it to a target voltage corresponding to the voltage signal;

[0026] The inversion control circuit is configured to determine and output the current value of the target electrolysis current based on the target voltage, and switch the direction of the output target electrolysis current under the control of a set of inversion control signals corresponding to the voltage signal to obtain a non-inversion-inversion time ratio of the target electrolysis current corresponding to the current TDS value.

[0027] In an optional implementation, the voltage stabilizing circuit includes a first transistor, a second transistor, a first inductor, a third resistor, and a current sensing amplifier;

[0028] The first end of the first transistor is configured to input any voltage signal, the second end of the first transistor is respectively connected to the first end of the second transistor and the first end of the first inductor, and the second end of the second transistor is grounded; the control end of the first transistor is configured to input a first conversion control signal, and the control end of the second transistor is configured to input a second conversion control signal; the second end of the first inductor is connected to the first end of the third resistor and configured to output a sensing signal; the second end of the third resistor is configured to output a target voltage corresponding to the voltage signal;

[0029] The current sensing amplifier is configured to determine and output a sensing output signal according to a sensing signal provided by a first terminal of the third resistor and a target voltage provided by a second terminal of the third resistor.

[0030] In an optional implementation, the inversion control circuit includes a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a tenth transistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, and a twentieth resistor;

[0031] The first end of the third transistor is configured to input any target voltage and is connected to the first end of the sixth resistor, the second end of the third transistor is connected to the first end of the fifth transistor and is configured as a first output end, the control end of the third transistor is respectively connected to the second end of the sixth resistor and the first end of the fifth resistor, the second end of the fifth resistor is connected to the first end of the seventh transistor, the second end of the seventh transistor is connected to the first end of the seventh resistor and is grounded, the control end of the seventh transistor is respectively connected to the second end of the seventh resistor and the first end of the eighth resistor, and the second end of the eighth resistor is configured to input a first signal of a group of inversion control signals corresponding to the any target voltage;

[0032] The first end of the fourth transistor is configured to input the any target voltage and is connected to the first end of the tenth resistor, the second end of the fourth transistor is connected to the first end of the sixth transistor and is configured as a second output end, the control end of the fourth transistor is respectively connected to the second end of the tenth resistor and the first end of the ninth resistor, the second end of the ninth resistor is connected to the first end of the eighth transistor, the second end of the eighth transistor is connected to the first end of the eleventh resistor and is grounded, the control end of the eighth transistor is respectively connected to the second end of the eleventh resistor and the first end of the twelfth resistor, and the second end of the twelfth resistor is configured to input a second signal in a group of inversion control signals corresponding to the any target voltage;

[0033] The second end of the fifth transistor is grounded, the control end of the fifth transistor is respectively connected to the first end of the thirteenth resistor and the first end of the fourteenth resistor, the second end of the thirteenth resistor is configured to input a voltage signal corresponding to any of the target voltages, the second end of the fourteenth resistor is connected to the first end of the ninth transistor, the second end of the ninth transistor is connected to the first end of the sixteenth resistor and grounded, the control end of the ninth transistor is respectively connected to the second end of the sixteenth resistor and the first end of the fifteenth resistor, and the second end of the fifteenth resistor is configured to input a third signal in a set of inversion control signals corresponding to any of the target voltages;

[0034] The second end of the sixth transistor is grounded, the control end of the sixth transistor is respectively connected to the first end of the seventeenth resistor and the first end of the eighteenth resistor, the second end of the seventeenth resistor is configured to input a voltage signal corresponding to any of the target voltages, the second end of the eighteenth resistor is connected to the first end of the tenth transistor, the second end of the tenth transistor is connected to the first end of the twentieth resistor and grounded, the control end of the tenth transistor is respectively connected to the second end of the twentieth resistor and the first end of the nineteenth resistor, and the second end of the nineteenth resistor is configured to input a fourth signal in a set of inversion control signals corresponding to any of the target voltages.

[0035] The beneficial effects brought about by the technical solution provided in the embodiments of the present application include: by configuring a TDS sensor, an electrolysis regulation module and an ozone conversion module, the target electrolysis power can be adjusted according to the different TDS sizes in the aqueous solution before conversion, thereby adjusting the degree of electrolysis of the aqueous solution before conversion, and stabilizing the ozone concentration of the aqueous solution after conversion within a preset range or at a preset value, thereby achieving ozone water with a stable ozone concentration under different water quality environments, overcoming the fluctuation of the ozone water concentration of the aqueous solution generated by the ozone water generator caused by differences in water quality in different places, and improving the disinfection effect.

[0036] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below and in part will become apparent from the description below or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0038] Figure 1 It is a curve diagram of the concentration of ozone water generated by the relevant ozone water generator at different TDS;

[0039] Figure 2 This is a principle block diagram of a specific example of an ozone water generator in an embodiment of the present application;

[0040] Figure 3 A principle block diagram of a specific example of an electrolysis regulation module in an embodiment of the present application;

[0041] Figure 4 It is a principle block diagram of another specific example of the electrolysis regulation module in the embodiment of the present application;

[0042] Figure 5 A circuit diagram of a specific example of a voltage stabilizing circuit in an embodiment of the present application;

[0043] Figure 6 A circuit diagram of a specific example of a reverse polarity control circuit in an embodiment of the present application

[0044] Figure 7 It is a schematic diagram of the curve of the ozone water concentration generated by the relevant ozone water generator at different ambient temperatures. DETAILED DESCRIPTION

[0045] In order to make the technical solutions and beneficial effects of the embodiments of the present application more obvious and understandable, the following is a clear and complete description by listing specific embodiments. Obviously, the enumerated embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0046] It should be noted that the terms "first", "second", etc. can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. When describing "first", it does not mean that "second" necessarily exists; and when discussing "second", it does not mean that "first" necessarily exists in this application. The singular forms of "one", "one" and "said / the" may also be intended to include plural forms unless the context clearly indicates another way. The term "includes" is to determine the existence of the included features, but does not exclude the existence or addition of one or more other features. The term "and / or" includes any and all combinations of the relevant listed items. The term "many" means two or more, such as "multiple" means two or more. The term "connection" means that there is a transmission of electrical signals or data between the connected end and the connected end, which can be understood as "electrical connection", "communication connection", etc. "Connection" can be a direct connection between two components, or an indirect connection established through other components, or a connection between two components, or any other possible connection form.

[0047] Figure 1 The figure shows the difference in ozone water concentration produced by the relevant ozone water generator at different TDS. Figure 1 It can be seen that the ozone concentration fluctuates greatly at different TDS, that is, the difference in water quality in different places will have a greater impact on the concentration of ozone water produced by the ozone water generator.

[0048] Therefore, in order to obtain ozone water with a stable ozone concentration under different water quality environments, the present application provides an ozone water generator that can be used in dental chair waterways, disinfection equipment waterways, etc. Figure 2 As shown, the ozone water generator comprises:

[0049] The TDS sensor 10 is configured to detect the aqueous solution before conversion in the water path of the ozone water generator to generate and output a water condition signal; the water condition signal includes the current TDS value of the aqueous solution before conversion;

[0050] The electrolysis adjustment module 20 is configured to adjust the current electrolysis power to a target electrolysis power corresponding to the current TDS value according to the water condition signal and output the target electrolysis power; and

[0051] The ozone conversion module 30 is configured to electrolyze the aqueous solution before conversion under the drive of the target electrolysis power to obtain the converted aqueous solution with the ozone concentration stabilized within a preset range or at a preset value.

[0052] In the embodiment of the present application, due to the difference in TDS under different water qualities, that is, the solution using water as a solvent (also referred to as an aqueous solution) contains different amounts of TDS, so the TDS sensor 10 can be used to detect in real time the current TDS value of the aqueous solution before conversion to obtain the water quality status. The smaller the TDS value, the less substances dissolved in the water, and the better the water quality is generally; conversely, the higher the TDS value, the more substances dissolved in the water, and the water quality may be poor. The water condition signal output by the TDS sensor 10 may also include the current temperature value, current water pressure value, etc. of the aqueous solution before conversion, but is not limited to this. For example, the TDS sensor 10 can use a highly sensitive sensing device to improve the accuracy of the measured information.

[0053] The aqueous solution before conversion can be the initial aqueous solution introduced into the water path of the ozone water generator from the water source, or it can be the aqueous solution converted by ozone electrolysis once or multiple times and then circulated and introduced into the water path of the ozone water generator again as the aqueous solution before conversion. It can be set according to actual needs.

[0054] The specific structure of the ozone conversion module 30 can be set according to actual needs. It has two electrodes, which can be electrically connected to the first output end and the second output end of the electrolysis adjustment module 20, respectively, to receive the target electrolysis current. The ozone conversion module 30 can obtain different electrolysis degrees of the aqueous solution under the drive of different electrolysis powers, thereby obtaining different ozone concentrations. The adjustment of the electrolysis power can include adjusting the voltage and / or current, which can be selected according to actual needs. The current electrolysis power can be the same or different from the target electrolysis power. For example, if the current TDS value of the aqueous solution before conversion has not changed, the target electrolysis power remains unchanged and is still the current electrolysis power. If the current TDS value of the aqueous solution before conversion has changed, the current electrolysis power will also be adjusted to the target electrolysis power accordingly, so that the ozone concentration generated by the electrolysis of the ozone conversion module 30 remains stable. The preset range or preset value at which the ozone concentration is stabilized can be set according to actual needs. For example, the preset range can be 1.4mg / L±0.1mg / L, and the preset value can be 1.4mg / L.

[0055] The ozone water generator in the embodiment of the present application is configured with a TDS sensor, an electrolysis regulation module and an ozone conversion module. It can adjust the target electrolysis power according to the different TDS sizes in the aqueous solution before conversion, thereby adjusting the electrolysis degree of the aqueous solution before conversion, and stabilizing the ozone concentration of the aqueous solution after conversion within a preset range or at a preset value, thereby achieving ozone water with a stable ozone concentration under different water quality environments, overcoming the fluctuation of the ozone water concentration of the aqueous solution generated by the ozone water generator caused by differences in water quality in different places, and improving the disinfection effect.

[0056] In an optional implementation, the target electrolysis power corresponding to the current TDS value is configured to be determined according to a preset corresponding relationship; the preset corresponding relationship includes:

[0057] The multiple interval ranges of TDS values ​​correspond to different target electrolysis powers, and the smaller the TDS value, the greater the target electrolysis power.

[0058] In the embodiment of the present application, when the TDS value is small, a larger target electrolysis power can be used to improve the ozone generation efficiency; conversely, when the TDS value is large, a smaller target electrolysis power can be used to reduce the ozone generation efficiency. As the TDS value increases, the target electrolysis power decreases accordingly, so that no matter how the TDS value changes, the obtained ozone concentration can always remain stable.

[0059] As a specific example, the target electrolysis power is configured to be determined according to the target electrolysis current;

[0060] When the current TDS value is greater than or equal to 0 and less than or equal to 200 mg / L, the target electrolysis current is a first preset current value;

[0061] When the current TDS value is greater than 200 mg / L and less than or equal to 500 mg / L, the target electrolysis current is the second preset current value;

[0062] When the current TDS value is greater than 500 mg / L and less than or equal to 1000 mg / L, the target electrolysis current is the third preset current value;

[0063] When the current TDS value is greater than 1000 mg / L, the target electrolysis current is a fourth preset current value;

[0064] The first preset current value, the second preset current value, the third preset current value and the fourth preset current value decrease in sequence.

[0065] In the embodiment of the present application, the endpoint values ​​0, 200mg / L, 500mg / L and 1000mg / L are respectively used as the dividing points of each range, and under the premise that the divided ranges do not overlap, they can be used as the endpoint values ​​of any range in each range. The different interval divisions of TDS are not limited to the four intervals of [0, 200mg / L], (200mg / L, 500mg / L], (500mg / L, 1000mg / L] and (1000mg / L, ∞). The interval division of other ranges can be carried out according to actual needs, and different target electrolysis powers (such as target electrolysis current, etc.) are configured for each interval one by one. By dividing the water quality conditions into several intervals according to the value of TDS, and making the electrolysis regulation module 20 output different target electrolysis currents according to the interval where the current TDS value measured by the TDS sensor 10 is located, the ozone conversion module 30 is driven and configured, and the adaptive adjustment of the electrolysis degree according to different water quality conditions is achieved, thereby improving the stability of the obtained ozone concentration.

[0066] The first preset current value, the second preset current value, the third preset current value and the fourth preset current value can all be set according to actual needs. For example, the first preset current value can be 800mA, the second preset current value can be 600mA, the third preset current value can be 400mA, and the fourth preset current value can be 200mA, but it is not limited to this.

[0067] In an alternative embodiment, if Figure 3 As shown, the electrolysis regulation module 20 includes a processor 21 and a voltage and current regulation circuit 22;

[0068] The processor 21 is configured to generate and output a selection signal according to the interval range of the current TDS value, so that each interval range corresponds to a selection signal;

[0069] The voltage and current regulating circuit 22 is configured to generate different voltage signals in a one-to-one correspondence according to different selection signals to obtain and output different target electrolysis powers.

[0070] In an embodiment of the present application, for example, the processor 21 can be configured to generate and output a first selection signal when the current TDS value is greater than or equal to 0 and less than or equal to 200 mg / L; generate and output a second selection signal when the current TDS value is greater than 200 mg / L and less than or equal to 500 mg / L; generate and output a third selection signal when the current TDS value is greater than 500 mg / L and less than or equal to 1000 mg / L; generate and output a fourth selection signal when the current TDS value is greater than 1000 mg / L; and, the voltage and current regulating circuit 22 can be configured to generate a first voltage signal to obtain a target electrolysis current of a first preset current value and output it if the first selection signal is obtained; generate a second voltage signal to obtain a target electrolysis current of a second preset current value and output it if the second selection signal is obtained; generate a third voltage signal to obtain a target electrolysis current of a third preset current value and output it if the third selection signal is obtained; generate a fourth voltage signal to obtain a target electrolysis current of a fourth preset current value and output it if the fourth selection signal is obtained. The voltage values ​​of the first voltage signal, the second voltage signal, the third voltage signal and the fourth voltage signal are different values, and can be respectively from reference voltage generating circuits capable of providing different reference voltages, but are not limited thereto, or can also be from other circuits. Of course, those skilled in the art should understand that the number of selection signals, the number of voltage signals, and the number of groups of inversion control signals in the following text correspond to the number of intervals divided by TDS, and can be set according to actual needs. For example, when the number of intervals divided by TDS is 3, the number of selection signals, the number of voltage signals, and the number of groups of inversion control signals are also 3 accordingly.

[0071] In the embodiment of the present application, the processor 21 may be a processing unit with data processing capability and / or instruction execution capability, for example, a microcontroller unit (MCU) or the like. The processor 21 may be connected to a memory, and the memory may include one or more computer program products, and the computer program product may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache), etc. Non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on a computer-readable storage medium, and the processor 21 may run the computer program instructions to implement the above-mentioned functions configured by the processor 21 and / or other desired functions.

[0072] The processor 21 may also include a communication module, which can communicate and interact with other MCUs, host computers or servers. The communication module may be a short-distance communication module or a long-distance communication module. The short-distance communication module may include at least one of a Bluetooth module, a WIFI module, a ZigBee module, an Ethernet module, a serial port module, a parallel port module, etc., and the long-distance communication module may include at least one of a GPRS module, a 2G module, a 3G module, a 4G module, a 5G module, and an LTE module. For example, a control signal may be received through the communication module so that the processor 21 generates a first selection signal, a second selection signal, a third selection signal, or a fourth selection signal under the control of the control signal to select and output different voltage signals; or other control signals (such as a start-stop control signal to realize remote start-stop control of the ozone water generator). The server may be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDNs), and big data and artificial intelligence platforms.

[0073] The circuit for realizing the selection and generation of different voltage signals in the voltage and current regulating circuit 22 can be set according to actual needs. For example, it can be realized by using a logic circuit, a many-to-many selection switch circuit, etc., and can select and output different voltage signals (such as the first voltage signal, the second voltage signal, the third voltage signal or the fourth voltage signal) one by one according to the different selection signals received (such as the first selection signal, the second selection signal, the third selection signal or the fourth selection signal), so as to output different target electrolysis powers accordingly. The ozone water generator of the embodiment of the present application can obtain different target electrolysis powers through intelligent adjustment when there are differences in water quality TDS, thereby improving the degree of intelligence.

[0074] In an optional embodiment, the electrolysis regulation module 20 is further configured to determine the non-reversal-reversal time ratio of the target electrolysis power according to the current TDS value.

[0075] In the embodiment of the present application, in addition to corresponding one-to-one to multiple different target electrolysis powers, the multiple interval ranges of the TDS value can also correspond one-to-one to multiple different non-reversal-reversal time ratios, and the smaller the TDS value, the larger the value of the non-reversal-reversal time ratio. For example, as shown in Table 1 below, when the current TDS value is greater than or equal to 0 and less than or equal to 200 mg / L, the no-reverse-reverse time ratio is a first preset ratio; when the current TDS value is greater than 200 mg / L and less than or equal to 500 mg / L, the no-reverse-reverse time ratio is a second preset ratio; when the current TDS value is greater than 500 mg / L and less than or equal to 1000 mg / L, the no-reverse-reverse time ratio is a third preset ratio; when the current TDS value is greater than 1000 mg / L, the no-reverse-reverse time ratio is a fourth preset ratio; the first preset ratio, the second preset ratio, the third preset ratio and the fourth preset ratio decrease in sequence, and their specific values ​​can be set according to actual needs. For example, the first preset ratio can be 10:1, the second preset ratio can be 5:1, the third preset ratio can be 2:1, and the fourth preset ratio can be 1:1.

[0076] Table 1

[0077] TDS range (mg / L) Target electrolysis current (mA) No-reversal-reversal time ratio [0,200] 800 10∶1 (200,500] 600 5∶1 (500,1000] 400 2∶1 (1000,∞) 200 1∶1

[0078] The embodiment of the present application also determines the ratio of the non-reversal time to the reversal time of the target electrolysis power according to the current TDS value. When the current TDS value is small, that is, the water quality is good, the reversal time is shortened and the reversal frequency is reduced (that is, the value of the non-reversal time to the reversal time ratio is large). When the current TDS value is large, that is, the water quality is poor, the reversal time is increased and the reversal frequency is increased (that is, the value of the non-reversal time to the reversal time ratio is small). In this way, the reversal frequency and time can be adjusted in time according to the water quality. While avoiding the accumulation of impurities such as scale on the electrodes that affect the electrolysis effect and further affect the stability of the generated ozone concentration, the electrodes can be better protected and the service life can be extended.

[0079] In an optional implementation, the voltage and current regulating circuit 22 includes an inverting circuit 220;

[0080] The processor 21 is further configured to generate and output a group of inversion control signals corresponding to any selection signal, so that each selection signal corresponds to a group of inversion control signals;

[0081] The inversion circuit 220 is configured to switch the direction of the output target electrolysis current under the control of each set of inversion control signals to obtain a non-inversion-inversion time ratio and a current value of the target electrolysis current corresponding to the current TDS value.

[0082] In the present application embodiment, Figure 4As shown, when the current TDS value is greater than or equal to 0 and less than or equal to 200 mg / L, the processor 21 generates and outputs a first selection signal and a first group of inversion control signals, so that the inversion circuit 220 outputs a target electrolysis current of 800 mA with a non-inversion-inversion time ratio of 10:1 under the power supply of the first voltage signal vdd1 and under the control of the first group of inversion control signals;

[0083] When the current TDS value is greater than 200 mg / L and less than or equal to 500 mg / L, the processor 21 generates and outputs a second selection signal and a second group of inversion control signals, so that the inversion circuit 220 outputs a target electrolysis current of 600 mA with a non-inversion-inversion time ratio of 5:1 under the power supply of the second voltage signal vdd2 and under the control of the second group of inversion control signals;

[0084] When the current TDS value is greater than 500 mg / L and less than or equal to 1000 mg / L, the processor 21 generates and outputs a third selection signal and a third group of inversion control signals, so that the inversion circuit 220 outputs a 400 mA target electrolysis current with a non-inversion-inversion time ratio of 2:1 under the power supply of the third voltage signal vdd3 and under the control of the third group of inversion control signals;

[0085] When the current TDS value is greater than 1000 mg / L, the processor 21 generates and outputs a fourth selection signal and a fourth set of inversion control signals, so that the inversion circuit 220 outputs a target electrolysis current of 200 mA with a non-inversion-inversion time ratio of 1:1 under the power supply of the fourth voltage signal vdd4 and under the control of the fourth set of inversion control signals.

[0086] In the embodiment of the present application, the processor intelligently adjusts the control of the reversal circuit according to the interval range of the current TDS value, and obtains a target electrolysis current that adapts to the change in the TDS value of the aqueous solution before the conversion. As a result, the ozone generator can, when there are differences in water quality TDS, always produce ozone water with stable concentration in different environments by intelligently adjusting the non-reversal-reversal time ratio and current value of the target electrolysis current, thereby improving the disinfection effect.

[0087] In an alternative embodiment, if Figure 4 As shown, the inversion circuit 220 includes a voltage stabilizing circuit 221 and an inversion control circuit 222;

[0088] The voltage stabilization circuit 221 is configured to quickly convert and stabilize any voltage signal to a target voltage corresponding to the voltage signal;

[0089] The inversion control circuit 222 is configured to determine and output the current value of the target electrolysis current based on the target voltage, and switch the direction of the output target electrolysis current under the control of a set of inversion control signals corresponding to the voltage signal to obtain a non-inversion-inversion time ratio of the target electrolysis current corresponding to the current TDS value.

[0090] In the embodiment of the present application, the voltage stabilizing circuit 221 and the inversion control circuit 222 can be configured with their specific circuit structures according to actual needs. Through the voltage stabilizing circuit 221, the first voltage signal vdd1 can be quickly converted and stabilized to the first target voltage VO1, or the second voltage signal vdd2 can be quickly converted and stabilized to the second target voltage VO2, or the third voltage signal vdd3 can be quickly converted and stabilized to the third target voltage VO3, or the fourth voltage signal vdd4 can be quickly converted and stabilized to the fourth target voltage VO4, so that the target electrolysis current can reach the required value as soon as possible, and the stability of the target electrolysis current is improved, thereby further improving the stability of the obtained ozone concentration.

[0091] As a specific example, Figure 5 As shown, the voltage stabilizing circuit includes a first transistor Q1, a second transistor Q2, a first inductor L1, a third resistor R3 and a current sensing amplifier U1;

[0092] The first end of the first transistor Q1 is configured to input any voltage signal, the second end of the first transistor Q1 is respectively connected to the first end of the second transistor Q2 and the first end of the first inductor L1, and the second end of the second transistor Q2 is grounded; the control end of the first transistor Q1 is configured to input the first conversion control signal HO, and the control end of the second transistor Q2 is configured to input the second conversion control signal LO; the second end of the first inductor L1 is connected to the first end of the third resistor R3 and configured to output the sensing signal VOCS; the second end of the third resistor R3 is configured to output a target voltage corresponding to the voltage signal;

[0093] The current sensing amplifier U1 is configured to determine and output a sensing output signal AD_IO according to a sensing signal VOCS provided by a first terminal of the third resistor R3 and a target voltage provided by a second terminal of the third resistor R3 .

[0094] The transistor of the embodiment of the present application may include a P-type MOSFET (metal oxide semiconductor field effect transistor), an N-type MOSFET or a BJT (bipolar junction transistor), etc., which has a control terminal, a first terminal and a second terminal, and its working principle is that under the control of a control signal input to the control terminal, the path between the first terminal and the second terminal is turned on or off to connect or block the signal transmission between the first terminal and the second terminal. For example, the first terminal may be a source or an emitter, and correspondingly, the second terminal may be a drain or a collector; or conversely, the first terminal may be a drain or a collector, and correspondingly, the second terminal may be a source or an emitter.

[0095] The current sensing amplifier U1 can be set according to actual needs, for example, the INA180A1IDBVR current sensing amplifier chip can be used.

[0096] The voltage stabilization circuit may also include filter capacitors, impedance matching resistors, protection diodes, etc., for example Figure 5 The first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the first diode D1, the second diode D2, the first resistor R1, the second resistor R2 and the fourth resistor R4 are shown in FIG. Those skilled in the art should understand that these capacitors, resistors and other devices are not limited to a single one, but can also be multiple series and / or parallel.

[0097] The first end of the first capacitor C1 is configured to input the first voltage signal vdd1, the second voltage signal vdd2, the third voltage signal vdd3 or the fourth voltage signal vdd4, and the second end is grounded. The first end of the second capacitor C2 is connected to the first end of the third resistor R3, and the second end of the second capacitor C2 is grounded. The first end of the third capacitor C3 is connected to the second end of the third resistor R3, and the second end of the third capacitor C3 is grounded.

[0098] The control end of the first transistor Q1 may be configured to input the first switching control signal HO through the first diode D1 and the first resistor R1 connected in parallel. The control end of the second transistor Q2 may be configured to input the second switching control signal LO through the second diode D2 and the second resistor R2 connected in parallel.

[0099] The differential input terminals of the current sensing amplifier U1 are respectively configured to input one of the first target voltage VO1, the second target voltage VO2, the third target voltage VO3 and the fourth target voltage VO4 and the sensing signal VOCS, and the output terminal of the current sensing amplifier U1 is configured to output the sensing output signal AD_IO after being connected in series with the fourth resistor R4.

[0100] The first conversion control signal HO and the second conversion control signal LO can be directly provided by the processor 21, or can be provided by a driver chip (such as EG3013S chip, etc.) controlled by the processor 21, or can also be provided by other control devices, which can be set according to actual needs. The induction output signal AD_IO can be output to an analog-to-digital (A / D) conversion device and then provided to the processor 21 for real-time voltage and current detection. And based on the voltage and current detection results, the target electrolysis current can also be adjusted to maintain its stability.

[0101] The voltage stabilizing circuit of the embodiment of the present application can quickly reach the required target voltage and output it, thereby improving the switching response speed of the target electrolysis current. Furthermore, the stability of the target voltage can be improved by the current sensing amplifier, thereby improving the stability of the target electrolysis current. Furthermore, through the first conversion control signal and the second conversion control signal, the control of outputting or not outputting the required voltage signal can be realized, and the start-stop control of the inverted circuit is provided, thereby increasing the flexibility of the start-stop control of the ozone water generator to contribute to reducing energy consumption and other aspects.

[0102] As a specific example, Figure 6 As shown, the inversion control circuit includes a third transistor Q3, a fourth transistor Q4, a fifth transistor Q5, a sixth transistor Q6, a seventh transistor Q7, an eighth transistor Q8, a ninth transistor Q9, a tenth transistor Q10, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19 and a twentieth resistor R20;

[0103] The first end of the third transistor Q3 is configured to input any target voltage and is connected to the first end of the sixth resistor R6, the second end of the third transistor Q3 is connected to the first end of the fifth transistor Q5 and is configured as a first output end P1-1, the control end of the third transistor Q3 is respectively connected to the second end of the sixth resistor R6 and the first end of the fifth resistor R5, the second end of the fifth resistor R5 is connected to the first end of the seventh transistor Q7, the second end of the seventh transistor Q7 is connected to the first end of the seventh resistor R7 and is grounded, the control end of the seventh transistor Q7 is respectively connected to the second end of the seventh resistor R7 and the first end of the eighth resistor R8, and the second end of the eighth resistor R8 is configured to input the first signal ECELL_AH in a group of inversion control signals corresponding to any target voltage;

[0104] The first end of the fourth transistor Q4 is configured to input any target voltage and is connected to the first end of the tenth resistor R10, the second end of the fourth transistor Q4 is connected to the first end of the sixth transistor Q6 and is configured as the second output end P1-2, the control end of the fourth transistor Q4 is respectively connected to the second end of the tenth resistor R10 and the first end of the ninth resistor R9, the second end of the ninth resistor R9 is connected to the first end of the eighth transistor Q8, the second end of the eighth transistor Q8 is connected to the first end of the eleventh resistor R11 and grounded, the control end of the eighth transistor Q8 is respectively connected to the second end of the eleventh resistor R11 and the first end of the twelfth resistor R12, and the second end of the twelfth resistor R12 is configured to input the second signal ECELL_BH in a group of inversion control signals corresponding to any target voltage;

[0105] The second end of the fifth transistor Q5 is grounded, the control end of the fifth transistor Q5 is respectively connected to the first end of the thirteenth resistor R13 and the first end of the fourteenth resistor R14, the second end of the thirteenth resistor R13 is configured to input a voltage signal corresponding to any target voltage, the second end of the fourteenth resistor R14 is connected to the first end of the ninth transistor Q9, the second end of the ninth transistor Q9 is connected to the first end of the sixteenth resistor R16 and grounded, the control end of the ninth transistor Q9 is respectively connected to the second end of the sixteenth resistor R16 and the first end of the fifteenth resistor R15, and the second end of the fifteenth resistor R15 is configured to input a third signal ECELL_AL in a set of inversion control signals corresponding to any target voltage;

[0106] The second end of the sixth transistor Q6 is grounded, the control end of the sixth transistor Q6 is respectively connected to the first end of the seventeenth resistor R17 and the first end of the eighteenth resistor R18, the second end of the seventeenth resistor R17 is configured to input a voltage signal corresponding to any target voltage, the second end of the eighteenth resistor R18 is connected to the first end of the tenth transistor Q10, the second end of the tenth transistor Q10 is connected to the first end of the twentieth resistor R20 and grounded, the control end of the tenth transistor Q10 is respectively connected to the second end of the twentieth resistor R20 and the first end of the nineteenth resistor R19, and the second end of the nineteenth resistor R19 is configured to input a fourth signal ECELL_BL in a set of inversion control signals corresponding to any target voltage.

[0107] The resistance in the embodiment of the present application is not limited to adopting a single resistance, and can also be the series connection and / or parallel connection of multiple resistances. Each group of inversion control signals (such as the first group of inversion control signals, the second group of inversion control signals, the third group of inversion control signals and the fourth group of inversion control signals) can include 4 signals, namely the first signal ECELL_AH, the second signal ECELL_BH, the third signal ECELL_AL and the fourth signal ECELL_BL. The seventh transistor Q7, the eighth transistor Q8, the ninth transistor Q9 and the tenth transistor Q10 of the embodiment of the present application can adopt BJT (triode) respectively, so as to further improve the switching response speed of the target electrolysis current, and have excellent static performance, further improve the circuit stability, and then further improve the stability of ozone concentration.

[0108] The working principle of the inversion control circuit is as follows:

[0109] During normal operation (i.e., without inversion), the first signal ECELL_AH is at a high level, the seventh transistor Q7 is turned on, and current flows through the sixth resistor R6, and the voltage difference between the two ends thereof turns on the third transistor (PMOS tube) Q3; and the third signal ECELL_AL is at a high level, the ninth transistor Q9 is turned on, so that the fifth transistor (NMOS tube) Q5 is turned off, and the first output terminal P1-1 is VO1 (or VO2, or VO3, or VO4). At the same time, the second signal ECELL_BH is at a low level, the eighth transistor Q8 is turned off, and the fourth transistor (PMOS tube) Q4 is turned off; and the fourth signal ECELL_BL is at a low level, the tenth transistor Q10 is turned off, the sixth transistor Q6 (NMOS tube) is turned on, and the second output terminal P1-2 is grounded. Therefore, the direction of the target electrolysis current at this time is from the first output terminal P1-1 to the second output terminal P1-2.

[0110] When the polarity is reversed, the first signal ECELL_AH is low, the seventh transistor Q7 is turned off, and the third transistor Q3 is turned off; and the third signal ECELL_AL is low, the ninth transistor Q9 is turned off, so that the fifth transistor Q5 is turned on, and the first output terminal P1-1 is grounded. At the same time, the second signal ECELL_BH is high, the eighth transistor Q8 is turned on, and the fourth transistor Q4 is turned on; and the fourth signal ECELL_BL is high, the tenth transistor Q10 is turned on, the sixth transistor Q6 is turned off, and the second output terminal P1-2 is VO1 (or VO2, or VO3, or VO4).

[0111] In an optional embodiment, when the water condition signal output by the TDS sensor 10 may also include the current temperature value, current water pressure value, etc. of the aqueous solution before conversion, the target electrolysis power may be determined based on at least one of the current TDS value, the current temperature value, and the current water pressure value, thereby adjusting the current electrolysis power to the target electrolysis power to improve the stability of the ozone concentration of the ozone water generated by the ozone water generator under different water quality TDS values, different temperatures, different water pressures, etc., and to improve the disinfection effect.

[0112] In an optional embodiment, the ozone water generator further includes an ambient temperature sensor configured to detect the aqueous solution before conversion in the water circuit of the ozone water generator to generate and output a second water condition signal including the current temperature value of the aqueous solution before conversion. The voltage and current regulating circuit is further configured to adjust the target electrolysis power according to the second water condition signal so that the ozone concentration of the aqueous solution after conversion at different ambient temperatures is stabilized within a preset range or a preset value.

[0113] Figure 7 The figure shows the difference in the concentration of ozone water produced by the relevant ozone water generator at different ambient temperatures. Figure 7 It can be seen that when other parameters remain relatively unchanged, if the ambient temperature changes significantly, the concentration of the produced ozone water will also change accordingly. The specific corresponding relationship is that the concentration of ozone water will gradually increase with the increase of ambient temperature. Therefore, the embodiment of the present application improves the stability of the obtained ozone concentration by adjusting the target electrolysis power according to the ambient temperature.

[0114] As a specific example, an ambient temperature sensor can be added to the ozone water generator, and a small hole is opened in the casing at the location to ensure that the sensor can detect the external ambient temperature in real time. Based on the electrolysis power (such as electrolytic cell current) corresponding to the ozone concentration measured at normal temperature, if the ambient temperature increases by 10°C, the voltage and current regulation circuit can be used to reduce the current to 90% of the corresponding current at normal temperature; if the ambient temperature is found to decrease by 10°C to 20°C, the voltage and current regulation circuit can be used to increase the current to 110% of the corresponding current at normal temperature, so that the concentration of ozone water can remain relatively stable at different ambient temperatures. The control of the current by the voltage and current regulation circuit can be seen above and will not be repeated here.

[0115] The embodiment of the present application also provides a monitoring system. The monitoring system may include a host computer and the above-mentioned ozone water generator. The ozone water generator can be used as a lower computer. The host computer may include a processor, a memory, a network interface, a display and an input device connected through a system bus. Among them, the processor of the host computer is used to provide computing and control capabilities. The memory of the host computer includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the host computer is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, it realizes communication interaction with the ozone water generator and monitors it. The display of the host computer can be a liquid crystal display or an electronic ink display, and the input device of the host computer can be a touch layer covered on the display, or a button, a trackball or a touchpad set on the housing of the host computer, or an external keyboard, touchpad or mouse, etc.

[0116] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.

Claims

1. An ozone water generator, characterized in that: The ozone water generator comprises: A TDS sensor is configured to detect the aqueous solution before conversion in the water path of the ozone water generator to generate and output a water condition signal; the water condition signal includes a current TDS value of the aqueous solution before conversion; an electrolysis regulating module, configured to adjust the current electrolysis power to a target electrolysis power corresponding to the current TDS value and output the target electrolysis power according to the water condition signal; and The ozone conversion module is configured to electrolyze the aqueous solution before conversion under the drive of the target electrolysis power to obtain the aqueous solution after conversion with the ozone concentration stabilized within a preset range or at a preset value.

2. The ozone water generator according to claim 1, characterized in that: The target electrolysis power corresponding to the current TDS value is configured to be determined according to a preset corresponding relationship; The preset corresponding relationship includes: The multiple interval ranges of TDS values ​​correspond to different target electrolysis powers, and the smaller the TDS value, the greater the target electrolysis power.

3. The ozone water generator according to claim 2, characterized in that: The target electrolysis power is configured to be determined according to the target electrolysis current; When the current TDS value is greater than or equal to 0 and less than or equal to 200 mg / L, the target electrolysis current is a first preset current value; When the current TDS value is greater than 200 mg / L and less than or equal to 500 mg / L, the target electrolysis current is a second preset current value; When the current TDS value is greater than 500 mg / L and less than or equal to 1000 mg / L, the target electrolysis current is a third preset current value; When the current TDS value is greater than 1000 mg / L, the target electrolysis current is a fourth preset current value; The first preset current value, the second preset current value, the third preset current value and the fourth preset current value decrease in sequence.

4. The ozone water generator according to claim 2, characterized in that: The electrolytic regulation module includes a processor and a voltage and current regulation circuit; The processor is configured to generate and output a selection signal according to the interval range of the current TDS value, so that each interval range corresponds to a selection signal; The voltage and current regulating circuit is configured to generate different voltage signals in a one-to-one correspondence according to different selection signals to obtain and output different target electrolysis powers.

5. The ozone water generator according to any one of claims 1 to 4, characterized in that: The electrolysis regulation module is further configured to determine a non-reversal-reversal time ratio of the target electrolysis power according to the current TDS value.

6. The ozone water generator according to claim 4, characterized in that: The voltage and current regulating circuit includes an inverting circuit; The processor is further configured to generate and output a group of inversion control signals corresponding to any selection signal, so that each selection signal corresponds to a group of inversion control signals; The inversion circuit is configured to switch the direction of the output target electrolysis current under the control of each set of inversion control signals to obtain a non-inversion-inversion time ratio and a current value of the target electrolysis current corresponding to the current TDS value.

7. The ozone water generator according to claim 6, characterized in that: The inversion circuit includes a voltage stabilizing circuit and an inversion control circuit; The voltage stabilization circuit is configured to quickly convert any voltage signal and stabilize it to a target voltage corresponding to the voltage signal; The inversion control circuit is configured to determine and output the current value of the target electrolysis current based on the target voltage, and switch the direction of the output target electrolysis current under the control of a set of inversion control signals corresponding to the voltage signal to obtain a non-inversion-inversion time ratio of the target electrolysis current corresponding to the current TDS value.

8. The ozone water generator according to claim 7, characterized in that: The voltage stabilizing circuit includes a first transistor, a second transistor, a first inductor, a third resistor and a current sensing amplifier; The first end of the first transistor is configured to input any voltage signal, the second end of the first transistor is respectively connected to the first end of the second transistor and the first end of the first inductor, and the second end of the second transistor is grounded; the control end of the first transistor is configured to input a first conversion control signal, and the control end of the second transistor is configured to input a second conversion control signal; the second end of the first inductor is connected to the first end of the third resistor and configured to output a sensing signal; the second end of the third resistor is configured to output a target voltage corresponding to the voltage signal; The current sensing amplifier is configured to determine and output a sensing output signal according to a sensing signal provided by a first terminal of the third resistor and a target voltage provided by a second terminal of the third resistor.

9. The ozone water generator according to claim 7, characterized in that: The inversion control circuit includes a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a tenth transistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor and a twentieth resistor; The first end of the third transistor is configured to input any target voltage and is connected to the first end of the sixth resistor, the second end of the third transistor is connected to the first end of the fifth transistor and is configured as a first output end, the control end of the third transistor is respectively connected to the second end of the sixth resistor and the first end of the fifth resistor, the second end of the fifth resistor is connected to the first end of the seventh transistor, the second end of the seventh transistor is connected to the first end of the seventh resistor and is grounded, the control end of the seventh transistor is respectively connected to the second end of the seventh resistor and the first end of the eighth resistor, and the second end of the eighth resistor is configured to input a first signal of a group of inversion control signals corresponding to the any target voltage; The first end of the fourth transistor is configured to input the any target voltage and is connected to the first end of the tenth resistor, the second end of the fourth transistor is connected to the first end of the sixth transistor and is configured as a second output end, the control end of the fourth transistor is respectively connected to the second end of the tenth resistor and the first end of the ninth resistor, the second end of the ninth resistor is connected to the first end of the eighth transistor, the second end of the eighth transistor is connected to the first end of the eleventh resistor and is grounded, the control end of the eighth transistor is respectively connected to the second end of the eleventh resistor and the first end of the twelfth resistor, and the second end of the twelfth resistor is configured to input a second signal in a group of inversion control signals corresponding to the any target voltage; The second end of the fifth transistor is grounded, the control end of the fifth transistor is respectively connected to the first end of the thirteenth resistor and the first end of the fourteenth resistor, the second end of the thirteenth resistor is configured to input a voltage signal corresponding to any of the target voltages, the second end of the fourteenth resistor is connected to the first end of the ninth transistor, the second end of the ninth transistor is connected to the first end of the sixteenth resistor and grounded, the control end of the ninth transistor is respectively connected to the second end of the sixteenth resistor and the first end of the fifteenth resistor, and the second end of the fifteenth resistor is configured to input a third signal in a set of inversion control signals corresponding to any of the target voltages; The second end of the sixth transistor is grounded, the control end of the sixth transistor is respectively connected to the first end of the seventeenth resistor and the first end of the eighteenth resistor, the second end of the seventeenth resistor is configured to input a voltage signal corresponding to any of the target voltages, the second end of the eighteenth resistor is connected to the first end of the tenth transistor, the second end of the tenth transistor is connected to the first end of the twentieth resistor and grounded, the control end of the tenth transistor is respectively connected to the second end of the twentieth resistor and the first end of the nineteenth resistor, and the second end of the nineteenth resistor is configured to input a fourth signal in a set of inversion control signals corresponding to any of the target voltages.

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