CN112439082B - Concentration detection circuit, disinfectant manufacturing machine and control method thereof - Google Patents
Concentration detection circuit, disinfectant manufacturing machine and control method thereof Download PDFInfo
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- 239000000645 desinfectant Substances 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 239000003792 electrolyte Substances 0.000 claims abstract description 129
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 103
- 230000008859 change Effects 0.000 claims abstract description 32
- 238000005070 sampling Methods 0.000 claims description 37
- 239000003990 capacitor Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 12
- 230000001954 sterilising effect Effects 0.000 claims description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 6
- 230000002421 anti-septic effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 description 10
- 241000700605 Viruses Species 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000005708 Sodium hypochlorite Substances 0.000 description 8
- 239000012267 brine Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000277 virosome Substances 0.000 description 4
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 3
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 3
- 230000000249 desinfective effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
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- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000447 pesticide residue Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/03—Electric current
- A61L2/035—Electrolysis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Biochemistry (AREA)
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- Pathology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a concentration detection circuit, a disinfectant manufacturing machine and a control method thereof, wherein the control method comprises the following steps: obtaining the initial concentration of the electrolyte; and determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis current, and starting electrolysis by using the preset current in the preset current change rule. By the arrangement, the electrolytic current matched with the electrolyte can be determined according to the initial concentration of the electrolyte, so that the disinfectant manufacturing machine can be prevented from electrolyzing with fixed electrolytic power all the time, and can electrolyze with larger electrolytic current when the concentration of the electrolyte is higher, thereby improving the electrolytic efficiency; when the concentration of the electrolyte is lower, the small current is kept for electrolysis, so that the electrolyte can be completely electrolyzed, and the optimal disinfectant preparation effect is achieved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a concentration detection circuit, a disinfectant manufacturing machine and a control method thereof.
Background
Along with the improvement of the living standard of people, a plurality of intelligent electric appliances enter the life of people, and the disinfectant manufacturing machine is one of daily use of people. The working principle of the disinfectant manufacturing machine is as follows: electrolyzing sodium chloride aqueous solution to generate sodium hypochlorite solution. Sodium hypochlorite is further decomposed by hydrolysis to form nascent oxygen, has strong oxidizing property, and can denature proteins on bacteria and viruses.
During the sterilization and virus killing process, hypochlorous acid not only can act on cell walls and virus shells, but also can permeate into the bodies of bacteria (viruses) to carry out oxidation reaction with organic macromolecules such as bacteria (virus) body proteins, nucleic acid, enzyme and the like, thereby killing pathogenic microorganisms. The chloride ions generated by hypochlorous acid can also significantly change the osmotic pressure of bacteria and virosomes, so that the cells of the bacteria and the virosomes lose activity and die. Sodium hypochlorite can decompose trace pesticide residue on agricultural and sideline products such as vegetables and fruits. Most of the agricultural chemicals are composed of organic substances, and the new oxygen released from sodium hypochlorite can oxidize and decompose the substances.
However, the conventional disinfectant solution producing machines generally perform electrolysis at a fixed electrolysis power, resulting in a low electrolysis current if the concentration of brine is high, which makes the electrolysis efficiency too slow; alternatively, if the brine concentration is low, and electrolysis is still performed with a large electrolysis current, more electrical energy is wasted.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is that the existing disinfectant solution making machines in the prior art usually perform electrolysis with fixed electrolysis power, resulting in the problems of too slow electrolysis efficiency when the brine concentration is high or waste of electric energy when the brine concentration is low. Thereby providing a concentration detection circuit, a disinfectant manufacturing machine and a control method thereof.
To achieve the above object, an embodiment of the present invention provides a concentration detection circuit, including: the first conductive terminal is connected with the first end of the sampling load; the first conductive terminal is suitable for extending into the electrolyte; the second conductive terminal is connected with the reference ground; the second conductive terminal is suitable for extending into the electrolyte; the power supply circuit is connected with the second end of the sampling load through a first resistor; and the input end of the controller is connected with the second end of the sampling load, and the concentration of the electrolyte is calculated according to the input voltage.
Optionally, the power supply circuit comprises: a first power supply; the control end of the switching circuit is connected with a signal source, the first end of the switching circuit is connected with the first power supply, and the second end of the switching circuit is connected with the second end of the sampling load through the first resistor; the signal source is used for providing high and low level signals.
Optionally, the sampling load is a first capacitor.
Optionally, the input end of the controller is connected to a second resistor, and the other end of the second resistor is connected to the second end of the sampling load.
Optionally, the concentration detection circuit further comprises: and one end of the filter capacitor is connected between the second resistor and the input end of the controller, and the other end of the filter capacitor is connected with the reference ground.
The embodiment of the invention also provides a disinfectant liquid manufacturing machine, which comprises: a housing having a cavity therein adapted to contain an electrolyte; the concentration detection circuit according to any one of the embodiments, provided to the housing; the concentration detection circuit includes: the first conductive terminal is connected with the first end of the sampling load; the first conductive terminal is suitable for extending into the electrolyte; the second conductive terminal is connected with the reference ground; the second conductive terminal is suitable for extending into the electrolyte; the power supply circuit is connected with the second end of the sampling load through a first resistor; the input end of the controller is connected with the second end of the sampling load, and the concentration of the electrolyte is calculated according to the input voltage; the third conductive terminal is arranged on the shell; and the third conductive terminal is connected with a second power supply and is suitable for extending into the electrolyte.
Optionally, the first conductive terminal is disposed at a position of the housing near the opening.
Optionally, the disinfectant manufacturing machine further comprises: the prompting device is arranged on the shell; the prompting device is in communication connection with the controller.
The embodiment of the invention also provides a control method for a disinfectant manufacturing machine, which is applied to the disinfectant manufacturing machine in any embodiment, and the control method comprises the following steps: obtaining the initial concentration of the electrolyte; and determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis current, and starting electrolysis by using the preset current in the preset current change rule.
Optionally, before obtaining the initial concentration of the electrolyte, the method further includes: controlling the disinfectant manufacturing machine to start water inflow and acquiring an electric signal generated by a power circuit; judging whether the electric signal is the same as a preset signal or not; if not, stopping water inflow and sending a first prompt signal.
Optionally, when the electrical signal is different from the preset signal, obtaining a variation curve between the voltage and the time of the sampling load; determining the resistance of the electrolyte according to the change curve; and determining the initial concentration of the electrolyte according to the resistance of the electrolyte.
Optionally, if yes, water inflow is continued, and a second prompt signal is sent out.
Optionally, the control method further includes: determining preset electrolysis time matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis time; timing when the electrolysis is started to obtain the current electrolysis time; judging whether the current electrolysis time reaches the preset electrolysis time or not; and if so, controlling the disinfectant manufacturing machine to stop electrolysis.
Optionally, the control method further includes: and generating a third prompt signal after the disinfection solution manufacturing machine stops electrolysis.
Optionally, the control method further includes: obtaining the ratio of the current electrolysis time to the preset electrolysis time; and sending a fourth prompt signal according to the ratio, wherein the fourth prompt signal is used for representing the ratio.
The embodiment of the invention also provides a control device of the disinfectant manufacturing machine, which comprises: the acquisition module is used for acquiring the initial concentration of the electrolyte; and the processing module is used for determining a preset electrolytic current matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolytic current and starting electrolysis.
The embodiment of the present invention further provides a computer-readable storage medium, which stores computer instructions for causing a computer to execute the control method of a disinfecting liquid manufacturing machine according to any one of the above embodiments.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. the embodiment of the invention provides a liquid level detection circuit, which comprises: the first conductive terminal is connected with the first end of the sampling load; the first conductive terminal is suitable for extending into the electrolyte; the second conductive terminal is connected with the reference ground; the second conductive terminal is suitable for extending into the electrolyte; the power supply circuit is connected with the second end of the sampling load through a first resistor; and the input end of the controller is connected with the second end of the sampling load, and the concentration of the electrolyte is calculated according to the input voltage.
So set up, can confirm the resistance of electrolyte through the relation of change between the voltage of detecting the sampling load and the time, then according to the relation between the resistance and the concentration of electrolyte, further confirm the concentration of electrolyte.
2. The embodiment of the invention provides a disinfectant liquid manufacturing machine, which comprises: a housing having a cavity therein adapted to contain an electrolyte; the concentration detection circuit according to any one of the above embodiments, disposed in the housing; the concentration detection circuit includes: the first conductive terminal is connected with the first end of the sampling load; the first conductive terminal is suitable for extending into the electrolyte; the second conductive terminal is connected with the reference ground; the second conductive terminal is suitable for extending into the electrolyte; the power supply circuit is connected with the second end of the sampling load through a first resistor; the input end of the controller is connected with the second end of the sampling load, and the concentration of the electrolyte is calculated according to the input voltage; the third conductive terminal is arranged on the shell; and the third conductive terminal is connected with a second power supply and is suitable for extending into the electrolyte.
By the arrangement, after the concentration of the electrolyte is determined, the electrolytic current output by the second power supply can be determined according to the concentration of the electrolyte, namely the electrolytic current matched with the electrolytic current is determined, so that the disinfectant manufacturing machine can be prevented from electrolyzing with fixed electrolytic power all the time, and can electrolyze with larger electrolytic current when the concentration of the electrolyte is higher, thereby improving the electrolytic efficiency; when the concentration of the electrolyte is lower, the small current is kept for electrolysis, so that the electrolyte can be completely electrolyzed, and the optimal disinfectant preparation effect is achieved.
3. The embodiment of the invention provides a control method for a disinfectant manufacturing machine, which is applied to the disinfectant manufacturing machine in any embodiment, and the control method comprises the following steps: obtaining the initial concentration of the electrolyte; and determining a preset electrolysis current matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis current, and starting electrolysis.
By the arrangement, the electrolytic current matched with the electrolyte can be determined according to the initial concentration of the electrolyte, so that the disinfectant manufacturing machine can be prevented from electrolyzing with fixed electrolytic power all the time, and can electrolyze with larger electrolytic current when the concentration of the electrolyte is higher, thereby improving the electrolytic efficiency; when the concentration of the electrolyte is lower, the small current is kept for electrolysis, so that the electrolyte can be completely electrolyzed, and the optimal disinfectant preparation effect is achieved.
4. According to the embodiment of the invention, when the electric signal generated by the power circuit is different from the preset signal, namely when the disinfectant manufacturing machine enters water and reaches the height of the preset water level, the water inlet is stopped, so that the water can be prevented from overflowing, the user does not need to manually turn off the water, and the use experience of the user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for a worker of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a circuit for detecting concentration according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a disinfectant manufacturing machine according to an embodiment of the present invention;
FIG. 3 is a schematic view of a disinfectant manufacturing machine according to an embodiment of the present invention;
fig. 4 is a schematic view of a control method of a disinfecting liquid manufacturing machine according to an embodiment of the present invention.
Reference numerals:
a first resistor R1; a second resistor R2;
a first capacitance C1; a filter capacitor C2;
a first power supply VCC 1; a second power supply VCC 2;
a transistor Q1;
a first conductive terminal X1; a second conductive terminal X2; a third conductive terminal X3;
a housing 1; a cavity 2; a water level indication line 3; a circuit board 4.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a worker skilled in the art without creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases by a worker of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Along with the improvement of the living standard of people, a plurality of intelligent electric appliances enter the life of people, and the disinfectant manufacturing machine is one of daily use of people. The working principle of the disinfectant manufacturing machine is as follows: electrolyzing sodium chloride aqueous solution to generate sodium hypochlorite solution. Sodium hypochlorite is further decomposed by hydrolysis to form nascent oxygen, has strong oxidizing property, and can denature proteins on bacteria and viruses. During the sterilization and virus killing process, hypochlorous acid not only can act on cell walls and virus shells, but also can permeate into the bodies of bacteria (viruses) to carry out oxidation reaction with organic macromolecules such as bacteria (virus) body proteins, nucleic acid, enzyme and the like, thereby killing pathogenic microorganisms. The chloride ions generated by hypochlorous acid can also significantly change the osmotic pressure of bacteria and virosomes, so that the cells of the bacteria and the virosomes lose activity and die. Sodium hypochlorite can decompose trace pesticide residue on agricultural and sideline products such as vegetables and fruits. Most of the agricultural chemicals are composed of organic substances, and the new oxygen released from sodium hypochlorite can oxidize and decompose the substances. However, the conventional disinfectant solution producing machines generally perform electrolysis at a fixed electrolysis power, resulting in a low electrolysis current if the concentration of brine is high, which makes the electrolysis efficiency too slow; alternatively, if the brine concentration is low, and electrolysis is still performed with a large electrolysis current, more electrical energy is wasted.
The concentration detection circuit, the disinfectant manufacturing machine and the control method thereof are used for solving the problem that the conventional disinfectant manufacturing machine in the prior art usually performs electrolysis with fixed electrolysis power, so that the electrolysis efficiency is too slow when the brine concentration is high or the electric energy is wasted when the brine concentration is low.
Example 1
As shown in fig. 1, an embodiment of the present invention provides a concentration detection circuit, including: the circuit comprises a first conductive terminal X1, a second conductive terminal X2, a sampling load, a power circuit and a controller.
The first conductive terminal X1 is connected to the first section of the sampling load, and the first conductive terminal X1 is adapted to extend into the electrolyte. The second conductive terminal X2 is connected to ground, and the second conductive terminal X2 is adapted to extend into the electrolyte. The power supply circuit is connected with the second end of the sampling load through a first resistor R1, and the amplitude of the output voltage of the power supply circuit can be adjusted periodically. And the input end of the controller is connected with the second end of the sampling load, and the concentration of the electrolyte is calculated according to the input voltage of the sampling load.
The sampling load may be a first capacitor C1, and when the first conductive terminal X1 and the second conductive terminal X2 simultaneously extend into the electrolyte and the voltage of the power circuit is periodically adjusted, the first capacitor C1 is also periodically charged and discharged accordingly. At this time, the first resistor R1, the first capacitor C1 and the electrolyte constitute an RC circuit. Therefore, a change curve of the voltage of the first capacitor C1 and time in the charging and discharging process of the first capacitor C1 can be obtained.
According to the RC circuit characteristics, the voltage of the first capacitor C1 is known
Wherein τ ═ (R)1+R2) C, the electrolyte concentration is different, and the resistance of the first capacitor C1 is also different, and the charging voltage and time curve of the first capacitor C1 is as follows, and the slope change of the curve is detected by the controller by sampling for many times, and the resistance of the electrolyte is calculated by the slope. And then determining the concentration of the electrolyte according to the resistance value of the electrolyte.
So set up, can confirm the resistance of electrolyte through the relation of change between the voltage of detecting the sampling load and the time, then according to the relation between the resistance and the concentration of electrolyte, further confirm the concentration of electrolyte.
Optionally, in an embodiment of the present invention, the power supply circuit includes: a first power supply VCC1, a signal source, and a switching circuit. The signal source is used for providing high and low level signals, such as PWM wave signals. The control end of the switch circuit is connected with a signal source, the first end of the switch circuit is connected with a first power supply VCC1, and the second end of the switch circuit is connected with the second end of the sampling load through a first resistor R1.
When the signal source generates a high-low level signal, the switch circuit is turned on and off accordingly, so that the first power supply VCC1 can charge the first capacitor C1 periodically, and the first capacitor C1 charges and discharges accordingly.
The switch circuit can be a transistor such as a transistor Q1 and a MOS transistor. The technical personnel in the field can set according to the actual situation, and do not limit here.
In the embodiment of the invention, the input end of the controller is connected with a second resistor R2, and the other end of the second resistor R2 is connected with the second end of the sampling load.
The concentration detection circuit is also provided with a filter capacitor C2, one end of the filter capacitor C2 is connected with the input end of the controller, and the other end of the filter capacitor C2 is connected with the reference ground.
Example 2
As shown in fig. 2 and fig. 3, an embodiment of the present invention further provides a disinfectant manufacturing machine, which includes a housing, a third conductive terminal X3, and a concentration detection circuit according to any one of the above embodiments, wherein the concentration detection circuit includes a first conductive terminal X1, a second conductive terminal X2, a power circuit, and a controller.
In the embodiment of the invention, the inside of the housing 1 is provided with the cavity 2 suitable for containing the electrolyte, the concentration detection circuit is arranged on the housing, the first conductive terminal X1 and the second conductive terminal X2 are suitable for extending into the electrolyte, the controller can be arranged in a preset accommodating cavity of the housing, and a sealing structure is arranged between the accommodating cavity and the cavity. Thus, the volume of the disinfectant manufacturing machine can be reduced. The third conductive terminal X3 is also disposed on the housing, and the third conductive terminal X3 is connected to the second power supply VCC2 and is adapted to extend into the electrolyte. Of course, the second power supply VCC2 may be disposed on the housing alone or may be integrated with the controller on the circuit board 4 disposed in the accommodating chamber. Those skilled in the art can individually set the setting position of the second power supply VCC2 according to practical situations, and this embodiment is merely an example and is not limited, and the same technical effects can be achieved.
According to the arrangement, after the concentration of the electrolyte is determined by the concentration detection circuit, the size of the electrolytic current output by the second power supply VCC2 is determined according to the concentration of the electrolyte, namely the electrolytic current matched with the concentration detection circuit is determined, so that the electrolytic current is adjusted by the electrolyte according to a preset electrolytic current change rule, a disinfectant manufacturing machine can be prevented from electrolyzing with fixed electrolytic power all the time, and when the concentration of the electrolyte is higher, the electrolyte can be electrolyzed with larger electrolytic current, and the electrolytic efficiency is improved; when the concentration of the electrolyte is lower, the small current is kept for electrolysis, so that the electrolyte can be completely electrolyzed, and the optimal disinfectant preparation effect is achieved.
Alternatively, in the embodiment of the present invention, the first conductive terminal X1 is disposed at a position close to the opening of the housing, and the water level indicating wire 3 is disposed at the position, and the second terminal is disposed at the bottom of the housing. Water can be manually added into the cavity of the shell when the water-saving device is used.
Specifically, when the disinfectant liquid making machine starts to work, water begins to be added into the cavity. When the water in the cavity does not reach the position of the first conductive terminal X1, the first conductive terminal X1 is not communicated with the second conductive terminal X2, and the electric signal detected by the controller is the same as the high-low level signal output by the power circuit. When the water in the cavity just reaches the position of the first conductive terminal X1, the first conductive terminal X1 is communicated with the second conductive terminal X2, and the power circuit starts to charge and discharge the first capacitor C1, so that the electric signal detected by the controller is not a high-low level signal output by the power circuit any more, but a voltage signal of the first capacitor C1 in the charging and discharging process.
At this time, the first resistor R1, the first capacitor C1 and the electrolyte constitute an RC circuit. Therefore, a change curve of the voltage of the first capacitor C1 and time in the charging and discharging process of the first capacitor C1 can be obtained. According to the RC circuit characteristics, the voltage of the first capacitor C1 is known
Wherein τ ═ (R)1+R2) C, different concentrations of the electrolyte and different resistance valuesThe charging voltage and time curve of the first capacitor C1 is as follows, and the slope change of the curve is detected by the controller through multiple sampling, and the resistance value of the electrolyte is calculated through the slope. And then determining the concentration of the electrolyte according to the resistance value of the electrolyte.
After the concentration of the electrolyte is determined, the magnitude of the electrolytic current output by the second power supply VCC2 is determined according to the concentration of the electrolyte, namely the electrolytic current matched with the electrolytic current is determined, and the electrolyte is electrolyzed by taking the third conductive terminal X3 as a positive electrode and the second conductive terminal X2 as a negative electrode. Therefore, the disinfectant manufacturing machine can be prevented from electrolyzing with fixed electrolytic power all the time, and can electrolyze with larger electrolytic current when the concentration of the electrolyte is higher, thereby improving the electrolytic efficiency; when the concentration of the electrolyte is lower, the small current is kept for electrolysis, so that the electrolyte can be completely electrolyzed, and the optimal disinfectant preparation effect is achieved.
The embodiment of the invention is also provided with a prompting device which is arranged on the shell and is in communication connection with the controller. When the preset electrolysis time is reached, the controller sends out prompt information, and a user can automatically turn off the second power supply VCC 2. Alternatively, the second power supply VCC2 may be communicatively coupled to the controller such that the controller automatically controls the second power supply VCC2 to turn off after a preset electrolysis time has been reached.
The disinfectant liquid manufacturing machine is also provided with a display device which is in communication connection with the controller. When the electrolysis is started, the current electrolysis time is timed, the current electrolysis time is compared with the preset electrolysis time, the ratio of the current electrolysis time to the preset electrolysis time is obtained, an electric signal representing the ratio is input into a display device, and then the ratio is displayed by the display device.
With the arrangement, a user can know the electrolysis process more clearly according to the ratio, so that the use experience of the user is improved.
Example 3
As shown in fig. 4, an embodiment of the present invention further provides a control method for a disinfectant liquid manufacturing machine, where the control method is applied to the disinfectant liquid manufacturing machine according to any one of the embodiments. The control method comprises the following steps:
s1, obtaining the initial concentration of the electrolyte;
s2, determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis current, and starting electrolysis by using the preset current in the preset current change rule.
Because the initial concentration of the electrolyte in the disinfectant manufacturing machine is different when the electrolysis is started, the electrolysis current required for complete electrolysis is different. In addition, during the electrolysis process of the electrolyte, the concentration of the electrolyte is gradually reduced, the conductivity of the electrolyte is weakened, and the required electrolysis current is correspondingly reduced.
Therefore, after the initial concentration of the electrolyte is obtained, the corresponding electrolytic current change rule is obtained according to the initial concentration, and electrolysis is started by the preset current in the change rule.
In an embodiment of the present invention, before obtaining the initial concentration of the electrolyte, the control method further includes:
s3, controlling the disinfectant manufacturing machine to start water inflow and acquiring an electric signal generated by a power circuit;
s4, judging whether the electric signal is the same as a preset signal or not;
s5, if not, stopping water inflow and sending a first prompt signal;
and S6, if so, continuing to feed water and sending a second prompt signal.
When the disinfectant manufacturing machine is used for producing the electrolyte, a water pump of the disinfectant manufacturing machine is controlled to feed water into the cavity, and then an electric signal generated by the power circuit is obtained.
Specifically, when the water in the cavity does not reach the position of the first conductive terminal X1, the first conductive terminal X1 is not connected to the second conductive terminal X2, and the electrical signal detected by the controller is the same as the preset signal output by the power circuit, that is, the high and low level signals output by the power circuit. And when the signals are the same, sending a first prompt signal to prompt the user to continue adding water.
When the water in the cavity just reaches the position of the first conductive terminal X1, the first conductive terminal X1 is communicated with the second conductive terminal X2, so the detected electric signal is changed. And then sending a second prompt signal to prompt the user to stop adding water.
In the embodiment of the present invention, the control method further includes:
s7, when the electric signal is different from the preset signal, acquiring a change curve between voltages of a sampling load;
s8, determining the resistance of the electrolyte according to the change curve;
and S9, determining the initial concentration of the electrolyte according to the resistance of the electrolyte.
In the control method, the specific contents refer to the embodiment of the disinfectant manufacturing machine, and the determination step of the electrolyte concentration is only briefly described in the embodiment.
When the water in the cavity just reaches the position of the first conductive terminal X1, the first conductive terminal X1 is communicated with the second conductive terminal X2, so the detected electric signal is changed. In this case, the first resistor R1, the first capacitor C1, and the electrolyte of the concentration detection circuit in the disinfectant manufacturing machine constitute an RC circuit. Therefore, a change curve of the voltage of the first capacitor C1 and time in the charging and discharging process of the first capacitor C1 can be obtained. According to the RC circuit characteristics, the voltage of the first capacitor C1 is known
Wherein τ ═ (R)1+R2) C, the electrolyte concentration is different, and the resistance of the first capacitor C1 is also different, and the charging voltage and time curve of the first capacitor C1 is as follows, and the slope change of the curve is detected by the controller by sampling for many times, and the resistance of the electrolyte is calculated by the slope. Then, the initial concentration of the electrolyte is determined according to the resistance value of the electrolyte.
Optionally, in this embodiment of the present invention, the control method further includes:
s10, determining preset electrolysis time matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis time;
s11, timing when the electrolysis is started to obtain the current electrolysis time;
s12, judging whether the current electrolysis time reaches the preset electrolysis time or not;
and S13, if so, controlling the disinfectant manufacturing machine to stop electrolysis.
Because the volume of the electrolyte in the disinfectant manufacturing machine is fixed, the corresponding electrolysis time can be determined according to the concentration of the electrolyte. The relationship between the concentration of the electrolyte and the electrolysis time and the electrolysis current is determined by a large amount of time, and in the case that the concentration of the electrolyte and the electrolysis current are both determined, the higher the concentration of the electrolyte is, the longer the electrolysis time is, and the lower the concentration of the electrolyte is, the shorter the electrolysis time is.
Furthermore, when the electrolysis is started, the electrolysis time needs to be measured, and the elapsed electrolysis time, namely the current electrolysis time, is obtained. And then judging whether the current electrolysis time reaches the preset electrolysis time, and if so, stopping electrolysis.
Optionally, in this embodiment of the present invention, the control method further includes:
s14, when the disinfectant manufacturing machine stops electrolysis, a third prompt signal is generated.
After the disinfection solution stops electrolyzing, a third prompt signal is generated for prompting the user that the disinfection solution electrolysis is completed. The user can know the information, and the use experience of the user is improved.
Optionally, in this embodiment of the present invention, the control method further includes:
s15, acquiring the ratio of the current electrolysis time to the preset electrolysis time;
and S16, sending a fourth prompt signal according to the ratio, wherein the fourth prompt signal is used for representing the ratio.
The current electrolysis time and the preset electrolysis time are compared, the real-time electrolysis degree can be known, and the ratio is sent out in the form of a fourth prompt signal. For example, it may be spoken "disinfect water to produce 30%"; or the display device displays that the production is 30%.
Of course, those skilled in the art can adjust the actual situation, and this embodiment is only for illustration and not for limitation, and can play the same role as the prompt.
Example 4
The embodiment of the invention also provides a control device of the disinfectant manufacturing machine, which comprises:
the acquisition module is used for acquiring the initial concentration of the electrolyte; for details, please refer to step S1 in the above embodiment, which is not described herein again;
the processing module is used for determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolytic current, and starting electrolysis by using the preset current in the preset current change rule; for details, please refer to step S2 of the above embodiment, which is not described herein again.
Has the advantages that: by the arrangement, the electrolytic current matched with the electrolyte can be determined according to the initial concentration of the electrolyte, so that the disinfectant manufacturing machine can be prevented from electrolyzing with fixed electrolytic power all the time, and can electrolyze with larger electrolytic current when the concentration of the electrolyte is higher, thereby improving the electrolytic efficiency; when the concentration of the electrolyte is lower, the small current is kept for electrolysis, so that the electrolyte can be completely electrolyzed, and the optimal disinfectant preparation effect is achieved.
Example 5
An embodiment of the present invention further provides a computer-readable storage medium storing computer instructions for causing a computer to execute any one of the control methods for a disinfecting liquid manufacturing machine.
The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (16)
1. A disinfectant manufacturing machine, comprising:
a housing having a cavity therein adapted to contain an electrolyte;
a concentration detection circuit provided in the housing; the concentration detection circuit includes: the first conductive terminal is connected with the first end of the sampling load; the first conductive terminal is suitable for extending into the electrolyte; the second conductive terminal is connected with the reference ground; the second conductive terminal is suitable for extending into the electrolyte; the power supply circuit is connected with the second end of the sampling load through a first resistor; the input end of the controller is connected with the second end of the sampling load, and the concentration of the electrolyte is calculated according to the input voltage;
the third conductive terminal is arranged on the shell; the third conductive terminal is connected with a second power supply and is suitable for extending into the electrolyte;
the controller is also used for obtaining the initial concentration of the electrolyte; and determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis current, determining the size of the electrolysis current output by the second power supply according to the initial concentration of the electrolyte, and starting electrolysis by using the preset current in the preset current change rule.
2. The antiseptic solution manufacturing machine of claim 1, wherein the power circuit comprises:
a first power supply;
the control end of the switching circuit is connected with a signal source, the first end of the switching circuit is connected with the first power supply, and the second end of the switching circuit is connected with the second end of the sampling load through the first resistor; the signal source is used for providing high and low level signals.
3. The antiseptic solution manufacturing machine of claim 2, wherein the sampling load is a first capacitor.
4. The sterilizing fluid maker as claimed in any one of claims 1 to 3, wherein a second resistor is connected to an input terminal of the controller, and the other terminal of the second resistor is connected to a second terminal of the sampling load.
5. The antiseptic solution maker of any one of claims 1-3, further comprising:
and one end of the filter capacitor is connected between the second resistor and the input end of the controller, and the other end of the filter capacitor is connected with the reference ground.
6. The sterilizing fluid maker of claim 5, wherein the first conductive terminal is disposed in the housing proximate the opening.
7. The sterilizing fluid maker as set forth in claim 1 or 6, further comprising:
the prompting device is arranged on the shell; the prompting device is in communication connection with the controller.
8. A control method for a sterilizing fluid manufacturing machine, which is applied to the sterilizing fluid manufacturing machine according to any one of claims 1 to 7, the control method comprising:
obtaining the initial concentration of the electrolyte;
and determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis current, and starting electrolysis by using the preset current in the preset current change rule.
9. The control method according to claim 8, further comprising, before obtaining the initial concentration of the electrolyte:
controlling the disinfectant manufacturing machine to start water inflow and acquiring an electric signal generated by a power circuit;
judging whether the electric signal is the same as a preset signal or not;
if not, stopping water inflow and sending a first prompt signal.
10. The control method according to claim 9,
when the electric signal is different from the preset signal, acquiring a change curve between the voltage and the time of a sampling load;
determining the resistance of the electrolyte according to the change curve;
and determining the initial concentration of the electrolyte according to the resistance of the electrolyte.
11. The control method according to claim 9,
if so, continuing to feed water and sending a second prompt signal.
12. The control method according to any one of claims 8 to 11, characterized by further comprising:
determining preset electrolysis time matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolysis time;
timing when the electrolysis is started to obtain the current electrolysis time;
judging whether the current electrolysis time reaches the preset electrolysis time or not;
and if so, controlling the disinfectant manufacturing machine to stop electrolysis.
13. The control method according to claim 12, characterized by further comprising:
and generating a third prompt signal after the disinfection solution manufacturing machine stops electrolysis.
14. The control method according to claim 13, characterized by further comprising:
obtaining the ratio of the current electrolysis time to the preset electrolysis time;
and sending a fourth prompt signal according to the ratio, wherein the fourth prompt signal is used for representing the ratio.
15. A control device for a disinfectant liquid producing machine, which is applied to the disinfectant liquid producing machine according to any one of claims 1 to 7, comprising:
the acquisition module is used for acquiring the initial concentration of the electrolyte;
and the processing module is used for determining a preset current change rule matched with the initial concentration according to the relation between the preset electrolyte concentration and the electrolytic current, and starting electrolysis by using the preset current in the preset current change rule.
16. A computer-readable storage medium characterized in that the computer-readable storage medium stores computer instructions for causing the computer to execute the control method of the sterilizing fluid manufacturing machine according to any one of claims 8 to 14.
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| CN113981472B (en) * | 2021-09-29 | 2023-04-07 | 珠海格力电器股份有限公司 | Ozone water generation device and preparation method of ozone water |
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