CN114681634A - Control method of sterilization module and household appliance with sterilization module - Google Patents
Control method of sterilization module and household appliance with sterilization module Download PDFInfo
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- CN114681634A CN114681634A CN202011611541.XA CN202011611541A CN114681634A CN 114681634 A CN114681634 A CN 114681634A CN 202011611541 A CN202011611541 A CN 202011611541A CN 114681634 A CN114681634 A CN 114681634A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 61
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011941 photocatalyst Substances 0.000 claims abstract description 71
- 150000002500 ions Chemical class 0.000 claims abstract description 44
- 230000007423 decrease Effects 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 description 11
- 230000001699 photocatalysis Effects 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- -1 oxygen free radical Chemical class 0.000 description 5
- 239000004408 titanium dioxide Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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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
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
-
- 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
- A61L2/08—Radiation
- A61L2/088—Radiation using a photocatalyst or photosensitiser
-
- 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
-
- 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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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides a sterilization module control method and a household appliance with the same, wherein the sterilization module control method comprises the following steps: acquiring the intensity of ultraviolet light when the ultraviolet light source works; obtaining the concentration of negative ions generated by the photocatalyst structure; and if the ultraviolet light intensity is lower than a first threshold value or the negative ion concentration is lower than a second threshold value, an alarm is given out.
Description
Technical Field
The present invention relates to a sterilization module, and more particularly, to a sterilization module capable of detecting performance of the sterilization module and a home appliance having the sterilization module.
Background
In order to improve quality of life, it is widely applied to a sterilization module in a refrigerator. For example, the refrigerator is sterilized by adopting a photocatalytic technology, and the fresh-keeping performances of sterilization, peculiar smell removal, pesticide residue removal and the like of the refrigerator are greatly improved by combining UVA or UVC ultraviolet light with a photocatalytic material.
However, the sterilization module may have its sterilization effect weakened as it is used. For example, the conventional photocatalytic material has two main defects of low purity and easy shedding of oxides when being used, because the used dispersing agent and adhesive are coated on the photocatalytic surface when the photocatalytic titanium dioxide powder is processed into a coating, the reaction efficiency is reduced, and the released strong oxygen free radicals decompose not only pollutants but also a coating substrate used as the adhesive along with the photocatalytic reaction, so that the photocatalysis gradually falls off along with the use, and the efficiency is further reduced.
However, none of the currently used sterilization modules has an effect feedback function.
In view of the above, it is desirable to provide a novel sterilization module and a household appliance having the same to solve the above problems.
Disclosure of Invention
The invention aims to at least solve one technical problem in the prior art, and provides a sterilization module and a household appliance with the sterilization module.
In order to realize one of the purposes of the invention, the invention adopts the following technical scheme:
a control method of a sterilization module comprises the following steps:
acquiring the intensity of ultraviolet light when the ultraviolet light source works;
obtaining the concentration of negative ions generated by the photocatalyst structure;
and if the ultraviolet light intensity is lower than a first threshold value or the negative ion concentration is lower than a second threshold value, an alarm is given.
Further, if the ultraviolet light intensity is lower than a first threshold value, the anion concentration is not lower than a second threshold value, the distance regulating unit is started to reduce the distance between the ultraviolet light source and the photocatalyst structure until the ultraviolet light intensity is not lower than the first threshold value.
Further, if the distance between the ultraviolet light source and the photocatalyst structure is adjusted to be the minimum distance, and the intensity of ultraviolet light is still lower than a first threshold value, the replacement of the ultraviolet light source is prompted.
Further, if the ultraviolet light intensity is not lower than the first threshold value and the negative ion concentration is lower than the second threshold value, the fan is adjusted to be in a full-power air volume state.
Further, the fan works for a preset time under the full-power air quantity state, and if the concentration of negative ions is still lower than a second threshold value, the photocatalyst structure is prompted to be replaced or cleaned; and if the concentration of the negative ions is not lower than the second threshold value, reducing the power of the fan to a normal sterilization state of the sterilization module.
Further, if the ultraviolet light intensity is lower than a first threshold value, the anion concentration is lower than a second threshold value, the distance regulating unit element is started to reduce the distance between the ultraviolet light source and the photocatalyst structure until the ultraviolet light intensity is not lower than the first threshold value, and the work is continued for a preset time.
Further, if the distance between the ultraviolet light source and the photocatalyst structure is adjusted to be the minimum distance, and the intensity of ultraviolet light is still lower than a first threshold value, the replacement of the ultraviolet light source is prompted.
Further, the ultraviolet light intensity is not lower than the first threshold value, after the operation is continued for a preset time, if the concentration of the negative ions is still lower than the second threshold value, the fan is adjusted to be in a full-power air volume state.
Further, the fan works for a preset time under the full-power air quantity state, and if the concentration of negative ions is still lower than a second threshold value, the photocatalyst structure is prompted to be replaced or cleaned; and if the concentration of the negative ions is not lower than the second threshold value, reducing the power of the fan to a normal sterilization state of the sterilization module.
Furthermore, the ultraviolet light intensity is not lower than the first threshold value, after the work is continued for a preset time, if the concentration of the negative ions is not lower than the second threshold value, the sterilization module is prompted to be in a normal state.
A household appliance comprises the control method of the sterilization module.
The invention has the beneficial effects that: according to the sterilization module, the performance of the ultraviolet light source is detected, the quantity of negative ions generated by the photocatalyst structure under the ultraviolet light source is detected, the working state of the sterilization module can be fed back in time, so that the performances of the ultraviolet light source and the photocatalyst structure can be judged, and the sterilization module can be cleaned or replaced in time, so that the sterilization effect is not influenced.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a sterilization module according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a sterilization module according to another preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a distance adjustment unit and an ultraviolet light source according to a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of a distance control unit and an ultraviolet light source according to another preferred embodiment of the invention.
100-sterilization module, 1-ultraviolet light source, 2-ultraviolet light intensity sensor, 3-photocatalyst structure, 4-negative ion sensor, 5-distance regulation unit, 51-conveyor belt, 52-regulation frame, 53-clamping groove, 54-clamping piece, 55-fixing frame, 56-elastic piece, 6-shell, 61-air inlet, 62-air outlet and M-fan M
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a sterilization module 100 of the present invention includes an ultraviolet light source 1, an ultraviolet light intensity sensor 2 for detecting performance of the ultraviolet light source 1, a photocatalyst structure 3, a negative ion sensor 4 located around the photocatalyst structure 3, a fan M, and a control unit. The ultraviolet light source 1, the ultraviolet light intensity sensor 2, the photocatalyst structure 3, the anion sensor 4 and the fan M are all in communication connection with the control unit, and the operation of the whole sterilization module 100 is controlled by the control unit.
The ultraviolet light source 1 is any light source that can emit UVA or UVC ultraviolet light, such as an ultraviolet lamp.
The ultraviolet light intensity sensor 2 detects the ultraviolet light emitted by the ultraviolet light source 1, and the sterilization effect of the ultraviolet light intensity sensor can be judged. Preferably, the ultraviolet light intensity sensor 2 is located between the ultraviolet light source 1 and the photocatalyst structure 3, and detects ultraviolet light irradiated from the ultraviolet light source 1 to the photocatalyst module, and can detect whether the photocatalyst structure 3 works under effective ultraviolet light.
Further, the distance between the ultraviolet light intensity sensor 2 and the photocatalyst structure 3 is smaller than the distance between the ultraviolet light intensity sensor 2 and the ultraviolet light source 1, and the smaller the distance between the ultraviolet light intensity sensor 2 and the photocatalyst structure 3 is, the smaller the difference between the measured ultraviolet light intensity and the ultraviolet light intensity reaching the photocatalyst structure 3 is, so that the judgment on the sterilization performance of the photocatalyst structure 3 is more accurate.
Preferably, the light touch structure include the support, coat in photocatalytic material on the support, photocatalytic material is titanium dioxide graphite alkene combined material, titanium dioxide graphite alkene combined material with titanium dioxide is the main material, strengthens the photocatalysis effect in addition graphite alkene, compares in traditional titanium dioxide photocatalyst, and the bactericidal effect is better.
The anion sensor 4 is located on one side of the photocatalyst structure 3 departing from the fan M, namely the anion sensor 4 is located at the downwind position of the photocatalyst structure 3, and detects the concentration of anions generated by the ultraviolet lamp after irradiating the photocatalytic composite material.
Preferably, the negative ion sensor 4 is placed centrally relative to the photocatalyst structure 3, and the distance from the photocatalyst structure 3 is preferably within 2 cm-4 cm, and the distance is small, so that the influence of harmful substances in the air on the generated negative ions can be reduced, and the accuracy of the test is ensured. And (3) counting when the negative ion sensor 4 starts to work, calculating the average negative ion number within 1 minute, and recording as M1, wherein the negative ion sensor 4 is started once a day. When the average number of negative ions in the test period of 1 minute is less than 70% of M1, it is considered that the amount of negative ions generated by the photocatalyst structure 3 under the current uv light source 1 is insufficient.
The inventor finds in research that the intensity of the ultraviolet light emitted by the ultraviolet light source 1 varies with the distance from the ultraviolet light source 1, and the luminous intensity of the ultraviolet light source 1 decreases after a period of operation. In view of this, on the basis of the above embodiment, the sterilization module 100 further includes a distance adjusting unit 5 in communication connection with the control unit, and is configured to adjust a position of at least one of the ultraviolet light source 1 and the photocatalyst structure 3 to adjust a distance therebetween, so as to ensure that the ultraviolet light reaching the photocatalyst structure 3 has a necessary light intensity, so that the photocatalyst structure 3 is in an optimal sterilization effect, and when determining the performance of the photocatalyst structure 3, the distance therebetween is adjusted to eliminate an interference factor of the ultraviolet light source 1.
In one embodiment, the distance adjusting unit 5 includes a conveyor belt 51 in communication with the control unit, one of the photocatalyst structure 3 and the ultraviolet light source 1 is fixed on the conveyor belt 51, and the other is located on one side of the conveyor belt 51 in the conveying direction. The conveyor belt 51 is started, so that the distance between the photocatalyst structure 3 and the ultraviolet light source 1 can be adjusted in a stepless manner.
Preferably, the ultraviolet light source 1 is fixed on the conveyor belt 51, the structural design is simple, and damage to the photocatalyst structure 3 caused by the moving process is avoided. Furthermore, a power supply socket (not shown) is arranged on the conveyor belt 51, the ultraviolet light source 1 is electrically connected with the power supply socket, and the conveyor belt 51 directly supplies power to the ultraviolet light source 1, so that the defect that electric wires are pulled is overcome.
Or, the photocatalyst structure 3 is fixed on the conveyor belt 51, so that the wiring of wires can be avoided, and the structure is simple.
In another embodiment, the distance adjusting and controlling unit 5 includes an adjusting frame 52 and a plurality of slots 53 disposed on the adjusting frame 52 at intervals, one of the photocatalyst structure 3 or the ultraviolet light source 1 has a fastening member 54 for being fixed to the slots 53, and the other is disposed on a first side of the adjusting frame 52; the distance between the two can be adjusted by manual movement.
The distance adjusting and controlling unit 5 further includes electromagnetic coils (not shown) disposed in the adjusting frame 52 and corresponding to the slots 53 one by one; the fastener 54 is a magnetic member. When the photocatalyst structure 3 or the ultraviolet light source 1 is fixed on one of the clamping grooves 53, the electromagnetic coil corresponding to the clamping groove 53 is electrified to generate a magnetic field to magnetically attract the magnetic part; when the photocatalyst structure 3 or the ultraviolet light source 1 needs to be moved, the electromagnetic coil corresponding to the card slot 53 is powered off, the magnetic field disappears, and the card fixing member 54 can move.
Further, the distance adjusting and controlling unit 5 further includes a fixing frame 55 located at a second side of the adjusting frame 52, and an elastic member 56 having one end fixed to the fixing frame 55, wherein the other end of the elastic member 56 is fixed to or abutted against the photocatalyst structure 3 or the ultraviolet light source 1, and when the photocatalyst structure 3 or the ultraviolet light source 1 fixed to the adjusting frame 52 is located at the farthest slot 53 from the fixing frame 55, the spring is in a free state or a compressed state. In one embodiment, the resilient member 56 is a spring.
When the photocatalyst structure 3 or the ultraviolet light source 1 moves to a certain slot 53, the electromagnetic coil corresponding to the slot 53 is electrified to generate a magnetic field to magnetically attract the magnetic member, and the clamping member 54 overcomes the elastic thrust of the spring under the action of the magnetic attraction force and is fixed in the slot 53; when the photocatalyst structure 3 or the ultraviolet light source 1 needs to be moved, the electromagnetic coil corresponding to the card slot 53 is powered off, the magnetic field disappears, the clamping member 54 can automatically move to the target card slot 53 needing to be fixed under the elastic thrust of the spring, and then the electromagnetic coil corresponding to the target card slot 53 is powered on.
Of course, the sterilization module 100 further includes a housing 6, the above structures are all located in the housing 6, and the housing 6 has an air inlet 61 and an air outlet 62, which are convenient for air circulation.
The invention also provides a control method of the sterilization module 100, which comprises the following steps:
the intensity of the ultraviolet light when the ultraviolet light source 1 works is obtained,
obtaining the concentration of the negative ions generated by the photocatalyst structure 3;
if the intensity of the ultraviolet light is lower than the first threshold value, the sterilization capability of the ultraviolet light emitted by the ultraviolet light source 1 is reduced, and the quantity of the negative ions generated by the photocatalyst structure 3 under the intensity of the ultraviolet light is also influenced; and/or the concentration of the negative ions is lower than a second threshold value, the quantity of the negative ions generated by the photocatalyst structure 3 under the current ultraviolet light intensity is reduced, and the sterilization capability of the photocatalyst structure is insufficient; at this time, an alarm is given out to prompt the user to process.
Wherein, the acquisition time points of the ultraviolet light intensity and the negative ion concentration are as follows: each time the sterilization module is activated, a fixed time period point, e.g., every day; the sterilization module is operated for a period of time, for example, every 10 hours of operation, etc.
If the ultraviolet light intensity is lower than a first threshold value and the anion concentration is not lower than a second threshold value, the ultraviolet light source 1 is abnormal, the distance regulating unit 5 is started to reduce the distance between the ultraviolet light source 1 and the photocatalyst structure 3, the intensity of ultraviolet light irradiating the surface of the photocatalyst structure 3 is enhanced until the ultraviolet light intensity is not lower than the first threshold value, and an alarm is eliminated.
Further, if the distance between the ultraviolet light source 1 and the photocatalyst structure 3 is adjusted to be the minimum distance, and the intensity of ultraviolet light is still lower than the first threshold value, which indicates that the ultraviolet light source 1 cannot be used any more, the replacement of the ultraviolet light source 1 is prompted.
If the ultraviolet light intensity is not lower than the first threshold value and the negative ion concentration is lower than the second threshold value, the photocatalyst structure 3 is abnormal, the fan M is adjusted to be in a full-power air volume state, the operation is carried out for a preset time, and dust on the surface of the photocatalyst structure 3 is blown away by strong wind.
Further, the fan M works for a predetermined time under a full-power air volume state, and if the concentration of the negative ions is still lower than a second threshold value, replacement or cleaning of the photocatalyst structure 3 is prompted; if the concentration of the negative ions is not lower than the second threshold, the power of the fan M is reduced to a normal sterilization state of the sterilization module 100.
If the ultraviolet light intensity is lower than the first threshold value and the anion concentration is lower than the second threshold value, the distance regulating unit 5 is started to reduce the distance between the ultraviolet light source 1 and the photocatalyst structure 3 until the ultraviolet light intensity is not lower than the first threshold value, and the work is continued for a preset time. The method firstly eliminates the influence factors of the ultraviolet light source 1 and then judges the performance of the photocatalyst structure 3, which is more reasonable.
Further, if the distance between the ultraviolet light source 1 and the photocatalyst structure 3 is adjusted to be the minimum distance, and the intensity of ultraviolet light is still lower than the first threshold value, which indicates that the ultraviolet light source 1 cannot be used any more, the replacement of the ultraviolet light source 1 is prompted.
Further, the ultraviolet light intensity is not lower than the first threshold, after the work is continued for a preset time, if the negative ion concentration is still lower than the second threshold, the photocatalyst structure 3 is abnormal, the fan M is adjusted to be in a full-power air volume state, the work is carried out for a preset time, and the dust on the surface of the photocatalyst structure 3 is blown away by strong wind.
Further, the fan M works for a predetermined time under a full-power air volume state, and if the concentration of the negative ions is still lower than a second threshold value, replacement or cleaning of the photocatalyst structure 3 is prompted; if the concentration of the negative ions is not lower than the second threshold, the power of the fan M is reduced to a normal sterilization state of the sterilization module 100.
Further, the ultraviolet light intensity is not lower than the first threshold, and after the operation is continued for a preset time, if the negative ion concentration is not lower than the second threshold, the sterilization module 100 is prompted to be in a normal state.
In summary, the sterilization module 100 of the present invention, on one hand, directly sterilizes by the ultraviolet light emitted from the ultraviolet light source 1, and meanwhile, the photocatalyst structure 3 generates strong oxygen radicals under the ultraviolet light, so as to enhance the sterilization effect. On the other hand, detect 1 performance of ultraviolet light source through ultraviolet light intensity sensor 2, through anion sensor 4 detects the anion volume that photocatalyst structure 3 produced under ultraviolet light source 1 can in time feed back the operating condition of module 100 that disinfects to the control unit, in order to judge ultraviolet light source 1 with photocatalyst structure 3's performance is in time washd or is changed to influence the bactericidal effect.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (11)
1. A control method of a sterilization module is characterized by comprising the following steps:
acquiring the intensity of ultraviolet light when the ultraviolet light source works;
obtaining the concentration of negative ions generated by the photocatalyst structure;
and if the ultraviolet light intensity is lower than a first threshold value or the negative ion concentration is lower than a second threshold value, an alarm is given.
2. The method for controlling a sterilization module according to claim 1, wherein if the intensity of the ultraviolet light is lower than a first threshold and the concentration of the negative ions is not lower than a second threshold, the distance control unit is activated to decrease the distance between the ultraviolet light source and the photocatalyst structure until the intensity of the ultraviolet light is not lower than the first threshold.
3. The method as claimed in claim 2, wherein if the distance between the uv light source and the photocatalyst structure is adjusted to a minimum distance and the uv light intensity is still lower than a first threshold, then the uv light source is prompted to be replaced.
4. The method for controlling the sterilization module according to claim 1, wherein if the ultraviolet light intensity is not lower than the first threshold value and the negative ion concentration is lower than the second threshold value, the blower is adjusted to a full power air volume state.
5. The method as claimed in claim 4, wherein the fan is operated for a predetermined time in a full power air volume state, and if the concentration of negative ions is still lower than a second threshold value, the photocatalyst structure is prompted to be replaced or cleaned; and if the concentration of the negative ions is not lower than the second threshold value, reducing the power of the fan to the normal sterilization state of the sterilization module.
6. The method for controlling a sterilization module according to claim 1, wherein if the intensity of the ultraviolet light is lower than a first threshold and the concentration of the negative ions is lower than a second threshold, the distance control unit is activated to decrease the distance between the ultraviolet light source and the photocatalyst structure until the intensity of the ultraviolet light is not lower than the first threshold, and the operation is continued for a predetermined time.
7. The method as claimed in claim 6, wherein if the distance between the UV light source and the photocatalyst structure is adjusted to a minimum distance and the UV light intensity is still lower than a first threshold, then the UV light source is prompted to be replaced.
8. The method as claimed in claim 6, wherein the ultraviolet light intensity is not lower than the first threshold, and after the operation is continued for a predetermined time, if the negative ion concentration is still lower than the second threshold, the blower is adjusted to the full power air volume state.
9. The method of claim 8, wherein the fan is operated for a predetermined time in a full-power air volume state, and if the concentration of negative ions is still lower than a second threshold, the photocatalyst structure is prompted to be replaced or cleaned; and if the concentration of the negative ions is not lower than the second threshold value, reducing the power of the fan to a normal sterilization state of the sterilization module.
10. The method as claimed in claim 6, wherein the intensity of the ultraviolet light is not lower than a first threshold, and after the operation is continued for a predetermined time, if the concentration of the negative ions is not lower than a second threshold, the sterilization module is indicated to be in a normal state.
11. An electric home appliance comprising the method for controlling the sterilization module according to any one of claims 1 to 10.
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| CN202011611541.XA CN114681634A (en) | 2020-12-30 | 2020-12-30 | Control method of sterilization module and household appliance with sterilization module |
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| CN202011611541.XA CN114681634A (en) | 2020-12-30 | 2020-12-30 | Control method of sterilization module and household appliance with sterilization module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115120764A (en) * | 2022-07-15 | 2022-09-30 | 珠海格力电器股份有限公司 | Intelligent disinfection device, method, disinfection material, equipment and storage medium |
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