CN115875896A - Refrigerator and sterilization control method thereof - Google Patents
Refrigerator and sterilization control method thereof Download PDFInfo
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- CN115875896A CN115875896A CN202211309840.7A CN202211309840A CN115875896A CN 115875896 A CN115875896 A CN 115875896A CN 202211309840 A CN202211309840 A CN 202211309840A CN 115875896 A CN115875896 A CN 115875896A
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Abstract
The invention discloses a refrigerator and a sterilization control method of the refrigerator, wherein the refrigerator is provided with a chamber, and a sterilization device comprising a light source component, a photocatalyst component and a bacteria concentration sensor is arranged in the chamber; the light source component emits light waves which can promote the photocatalyst component to generate photocatalysis to ensure that the photocatalyst component is in the irradiation range of the light source component; a photocatalytic template of the photocatalyst component performs photocatalytic reaction under the irradiation of light waves to generate free hydroxyl and active oxygen with oxidation capacity, and the internal space of the chamber is sterilized; the bacteria concentration sensor is used for detecting the bacteria concentration value in the chamber; the controller controls the photocatalytic amount of the photocatalytic template according to the concentration value of the bacteria, and adjusts the amount of free hydroxyl and active oxygen with the sterilization effect, which are generated by the photocatalytic template through catalytic reaction under the irradiation of ultraviolet light waves. This scheme reaches safe degerming quiet flavor, reduce cost's effect through photocatalyst degerming technique, and better keeps fresh to food.
Description
Technical Field
The invention belongs to the technical field of refrigerators, particularly relates to a refrigerator and a sterilization control method of the refrigerator, and particularly relates to a photocatalyst sterilization refrigerator and a sterilization control method of the photocatalyst sterilization refrigerator.
Background
With the improvement of the life quality of people, refrigerators are increasingly popularized. However, in practical use, the refrigerator not only improves the quality of life of people, but also causes problems, such as bad smell caused by food spoilage and smell channeling of various foods, which leads to poor air in the refrigerator, and the food deterioration is further accelerated by the breeding of bacteria in the foods and the air, and the unsanitary food storage environment is caused, thereby affecting the health of consumers.
Most of the odor-removing single products in the current market adopt the technologies of activated carbon, ion generators and the like, the activated carbon is physical adsorption, the service life is limited, and the odor-removing single products can become odor release sources after reaching the service life. The ion generator can generate ozone, the ozone has strong relative (free radical) stability, can exist in the air for a long time, has great harm to human bodies, and has high module cost.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention aims to provide a refrigerator and a sterilization control method of the refrigerator, and aims to solve the problems that a sterilization product is short in service life, harmful ozone is released and the cost is high when the refrigerator performs sterilization. Reach safe degerming, reduce cost's effect through using photocatalyst degerming technique to make the refrigerator have better degerming effect, promote user's experience and feel.
The invention provides a refrigerator, which is provided with a chamber and a controller, wherein a sterilizing device is arranged in the chamber and comprises a light source component, a photocatalyst component and a bacteria concentration sensor; the light source assembly is used for emitting light waves capable of promoting the photocatalytic reaction of the photocatalyst assembly to the photocatalyst assembly so that the photocatalyst assembly is in the irradiation range of the light source assembly; the photocatalyst component is provided with a photocatalytic template; the photocatalytic template performs a photocatalytic reaction under the irradiation of the light waves to generate free hydroxyl and active oxygen with oxidation capacity, and is used for sterilizing the inner space of the chamber; the bacteria concentration sensor is used for detecting a bacteria concentration value in the chamber; the controller is used for controlling the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber so as to adjust the amount of free hydroxyl and active oxygen with a sterilization effect, which are generated by catalytic reaction of the photocatalytic template under the irradiation of the light waves.
In some embodiments, the photocatalyst component further comprises a shielding component; the controller is used for controlling the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber, and comprises: the controller is used for determining the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber; determining the photocatalytic area of the photocatalytic template according to the photocatalytic amount of the photocatalytic template; the shielding assembly is used for shielding the areas of the rest parts of the photocatalytic template except the photocatalytic area according to the photocatalytic area of the photocatalytic template, so that the areas of the rest parts of the photocatalytic template except the photocatalytic area cannot irradiate the light wave, the photocatalytic amount of the photocatalytic template is adjusted, and the amount of free hydroxyl and active oxygen with the sterilization effect, which are generated by catalytic reaction of the photocatalytic template under the irradiation of the light wave, is adjusted.
In some embodiments, the shutter assembly includes a movable shutter, a movable rail, and an electrical control; wherein the movable baffle is positioned above the photocatalytic template and is parallel to the photocatalytic template; the movable track is arranged between the movable baffle and the photocatalytic template so that the movable baffle and the photocatalytic template can move relatively along the movable track; the electric control part is used for driving the movable baffle to move along the moving track under the control of the controller, so that the areas of the rest parts of the photocatalytic template except the photocatalytic area are adjusted, the area of the photocatalytic template which can be irradiated by the light wave is adjusted, and the covered part of the photocatalytic template cannot be irradiated by the light wave.
In some embodiments, the movable barrier has more than one moving gear, and the movable barrier covers the area of the other part of the photocatalytic template except the photocatalytic area in different moving gears.
In some embodiments, the sterilization apparatus further comprises a fan; the fan is used for adjusting the air flow flux of the compartment under the control of the controller; the controller is used for controlling the opening and closing of the fan and controlling the wind speed of the fan under the condition that the fan is opened according to the bacteria concentration value in the chamber.
In some embodiments, a detection device is also disposed within the compartment; the detection device is used for identifying whether the chamber is in a closed state or not, allowing the sterilizing device to be started if the chamber is in the closed state, and sending a reminding message to remind a user of the refrigerator to close the chamber if the chamber is not in the closed state.
In another aspect, the present invention provides a sterilization method for a refrigerator, including: under the condition that the compartment is closed, controlling the sterilizing device to be opened when the refrigerator runs in a sterilizing mode; detecting a bacterial concentration value within the chamber; and controlling the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber so as to adjust the amount of free hydroxyl and active oxygen with a sterilization effect, which are generated by the photocatalytic reaction of the photocatalytic template under the irradiation of the light waves.
In some embodiments, a bacterial concentration value within the chamber is detected; controlling the photocatalytic amount of the photocatalytic template according to the bacterial concentration value in the chamber, so as to adjust the amount of free hydroxyl and active oxygen with a sterilization effect generated by the photocatalytic reaction of the photocatalytic template under the irradiation of the light waves, wherein the amount of the free hydroxyl and the active oxygen with the sterilization effect comprises the following steps: detecting the concentration value of bacteria in the chamber at preset intervals; controlling the photocatalytic amount of the photocatalytic template according to the change of the bacterial concentration value of the chamber in a preset time; if the bacterial concentration value of the chamber in the preset time is reduced, controlling the photocatalytic amount of the photocatalytic template to be unchanged; and if the bacterial concentration value of the chamber in the preset time is not changed, controlling the increase of the photocatalytic amount of the photocatalytic template.
In some embodiments, controlling the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber to adjust the amount of free hydroxyl and active oxygen with sterilization effect generated by the photocatalytic reaction of the photocatalytic template under the irradiation of the light wave, further comprises: controlling the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber, comprising: determining the photocatalytic amount of the photocatalytic template according to the concentration value of bacteria in the chamber; determining the photocatalytic area of the photocatalytic template according to the photocatalytic amount of the photocatalytic template; under the condition that the photocatalyst component further comprises a shielding component, the shielding component shields the areas of the rest parts of the photocatalyst template except the photocatalytic area according to the photocatalytic area of the photocatalyst template, so that the areas of the rest parts of the photocatalyst template except the photocatalytic area can not irradiate the light wave, the photocatalytic amount of the photocatalyst template can be adjusted, and the amount of free hydroxyl and active oxygen with the sterilization effect, generated by the photocatalytic reaction of the photocatalyst template under the irradiation of the light wave, can be adjusted.
In some embodiments, further comprising: controlling opening and closing of the fan and controlling a wind speed of the fan when the fan is opened, according to an air flow flux of an inner space of the compartment, in case that the sterilizing apparatus further includes the fan; and under the condition that the degerming device is started, controlling the wind speed of the fan to be a first set gear.
In some embodiments, further comprising: detecting the concentration value of bacteria in the chamber in real time; and when detecting that the concentration value of bacteria in the chamber reaches a target concentration value, controlling the sterilizing device to be closed, and exiting from a sterilizing mode.
In some embodiments, controlling the sterilizing device to be turned on while the refrigerator operates in a sterilizing mode with the compartment closed comprises: when a sterilization function starting instruction sent by a user of the refrigerator is received; detecting whether the compartment is in a closed state; if the compartment is not in a closed state, the refrigerator sends a reminding message to remind a user of the refrigerator to close the compartment; and if the compartment is in a closed state, the refrigerator runs a sterilization mode and controls the sterilization device to be started.
Therefore, according to the scheme provided by the invention, the photocatalyst sterilization technology is adopted in the refrigerator chamber, and the amount of the generated free hydroxyl and active oxygen with sterilization effects is controlled according to the concentration of bacteria in the chamber, so that the sterilization effect which is free of ozone, low in cost, quicker, more effective and more energy-saving is realized, the service life of the sterilization function of the refrigerator is prolonged, and the user experience is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an intermediate compartment of a refrigerator according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the photocatalyst assembly in the S1 shift position in the refrigerator according to the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of the photocatalyst assembly in the S2 shift position in the refrigerator according to the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of a photocatalyst assembly in the S3 gear of the refrigerator according to the present invention;
fig. 6 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.
The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:
1-compartment; 2-a light source assembly; 3-a photocatalyst component; 4-a bacterial concentration sensor; 5-a fan; 31-a photocatalytic template; 32-movable shutter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
Researches find that the light-contact sterilization technology utilizes a light source component to catalyze a catalyst to generate oxygen, oxygen free radicals can be generated under the condition of metal oxides, have strong oxidizing property, can maintain the oxidizing capability in the air to be far higher than that of ozone, can effectively oxidize and decompose peculiar smell, has high specific surface area, can adsorb peculiar smell and realize sterilization and odor purification in space. However, the specific surface area of the photocatalyst is an important factor affecting the photocatalytic reaction of the photocatalyst, and long-term exposure thereof can cause consumption of reaction surface materials and reduce the photocatalytic reaction rate. Therefore, the device which is low in ozone, strong in sterilization capacity and comprehensive in sterilization is researched and designed, and has important application value.
According to an embodiment of the present invention, as shown in fig. 1 and 2, a refrigerator is provided, the refrigerator has a compartment 1 and a controller, a sterilization device is arranged in the compartment 1, and the sterilization device includes a light source assembly 2, a photocatalyst assembly 3 and a bacteria concentration sensor 4; the light source assembly 2 is configured to emit light waves capable of promoting a photocatalytic reaction of the photocatalyst assembly 3 to the photocatalyst assembly 3, so that the photocatalyst assembly 3 is located within an irradiation range of the light source assembly 2; the photocatalyst component 3 is provided with a photocatalyst template 31; the photocatalytic template 31 performs a photocatalytic reaction under the irradiation of the light waves to generate free hydroxyl and active oxygen with oxidation capacity, and is used for sterilizing the internal space of the compartment 1; the bacteria concentration sensor 4 is used for detecting the bacteria concentration value in the compartment 1; the controller is used for controlling the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the chamber 1, so as to adjust the amount of free hydroxyl and active oxygen with a sterilization effect generated by the photocatalytic reaction of the photocatalytic template 31 under the irradiation of the light waves.
Specifically, the required light wave is different according to the material of the photocatalytic template 31, and in this embodiment, the photocatalytic template 31 may be specifically an Ag — TiO2 composite semiconductor; the light wave required correspondingly is an ultraviolet light wave, and preferably, the light source assembly 2 may be an ultraviolet lamp, hereinafter referred to as a UV lamp, or other light sources capable of triggering the photocatalyst medium may be adopted. The operating principle of the photocatalyst component adopting the invention is that under the irradiation of UV light, oxygen and moisture adsorbed on the surface of the photocatalyst material (the photocatalytic template 31) can be activated to generate free hydroxyl and active oxygen with extremely strong oxidizing capability, and an oxidation reaction is carried out to thoroughly decompose volatile organic substances in the air into carbon dioxide and water. Ag can be strongly bonded with sulfhydryl-SH of enzyme protein in thallus, so that the protein is coagulated, the activity of cell synthetase is destroyed, and cells lose division and proliferation capacity and die. The effects of sterilization and odor removal are realized. That is, the photocatalytic template can effectively decompose volatile smell of food in the refrigerator and smell generated by food spoilage, kill microorganisms and the like bred in the refrigerator and entering the refrigerator from the outside, and thus, the effects of sterilization and deodorization are achieved.
Prolonged exposure of the photocatalyst can result in consumption of reaction surface materials and decrease the photocatalytic reaction rate. In the technical scheme, according to a concentration value of bacteria in the compartment 1, the photocatalytic amount of the photocatalytic template 31 is controlled to adjust the amount of free hydroxyl and active oxygen with a sterilization effect, which are generated by a catalytic reaction of the photocatalytic template 31 under the irradiation of the ultraviolet light waves. Can realize the degerming effect of more accurate high efficiency, safe energy-conserving, make the food in the room 1 reach better fresh-keeping effect.
In some embodiments, the photocatalyst element 3 further includes a shielding element; the controller is used for controlling the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the chamber 1, and comprises: the controller is used for determining the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the chamber 1; determining the photocatalytic area of the photocatalytic template 31 according to the photocatalytic amount of the photocatalytic template 31; the shielding component is configured to shield the area of the portion of the photocatalytic template 31 other than the photocatalytic area according to the photocatalytic area of the photocatalytic template 31, so that the area of the portion of the photocatalytic template 31 other than the photocatalytic area cannot irradiate the light wave, thereby adjusting the photocatalytic amount of the photocatalytic template 31, and further adjusting the amount of free hydroxyl and active oxygen with a sterilization effect generated by the catalytic reaction of the photocatalytic template 31 under the irradiation of the light wave.
Further, the shielding assembly comprises a movable baffle 32, a movable track and an electric control member; wherein the movable baffle 32 is positioned above the photocatalytic template 31 and is parallel to the photocatalytic template 31; the moving track is arranged between the movable baffle 32 and the photocatalytic template 31 so that the movable baffle 32 and the photocatalytic template 31 can move relatively along the moving track; the electronic control unit is configured to drive the movable baffle 32 to move along the moving track under the control of the controller, so as to adjust the area of the rest portion of the photocatalytic template 31 except the photocatalytic area, so as to adjust the area of the photocatalytic template 31 that can be irradiated by the light wave, and prevent the covered portion of the photocatalytic template 31 from being irradiated by the light wave.
More specifically, the movable barrier 32 has more than one moving gear, and the movable barrier 32 covers the area of the remaining portion of the photocatalytic template 31 except for the photocatalytic area in different moving gears.
In a specific embodiment, as shown in fig. 3 to 5, the movable shutter 32 has an S1 shift, an S2 shift, and an S3 shift, wherein an area of the photocatalytic template 31 irradiated with the ultraviolet light waves in the S1 shift is smaller than an area of the photocatalytic template 31 irradiated with the ultraviolet light waves in the S2 shift. Wherein the area of the photocatalytic template 31 under the S2 gear irradiated by the ultraviolet light wave is smaller than the area of the photocatalytic template 31 under the S3 gear irradiated by the ultraviolet light wave. In the case where the degerming device does not include a fan, adjusting the gear of the degerming device is simply the adjustment of the gear of the movable barrier 32.
Specifically, the photocatalyst specific surface area is an important factor that influences the photocatalyst to perform photocatalytic reaction, and the photocatalytic area of the photocatalytic template 31 that can perform photocatalytic reaction under the irradiation of the light source assembly 2 can be changed by the shielding assembly, that is, the effective area for sterilizing the photocatalyst is also referred to. The consumption of reaction surface materials of the photocatalytic template 31 is reduced, the photocatalytic reaction rate is improved, the service life of the photocatalytic template 31 is prolonged, and the reliability of the sterilization function of the refrigerator is improved.
In the technical scheme, the light source assembly 2 is a necessary condition of the photocatalytic sterilization technology, and the intensity of the ultraviolet light wave is controlled according to the concentration value of bacteria in the chamber 1, so that the photocatalytic amount of the photocatalytic template 31 can be changed, and the amount of free hydroxyl and active oxygen with sterilization effect generated by the catalytic reaction of the photocatalytic template 31 under the irradiation of the ultraviolet light wave can be adjusted. And then realize more accurate high-efficient, safe energy-conserving degerming effect, make the food in the compartment 1 reach better fresh-keeping effect. Specifically, the number of the light source modules 2 to be turned on may be controlled according to the difference in bacterial concentration by providing a plurality of light source modules 2 that irradiate the photocatalytic template 31. This approach can be used as an alternative to adjusting the photocatalytic area or a combination of both.
In some embodiments, the sterilization apparatus further comprises a fan 5; the fan 5 is used for adjusting the air flow of the compartment 1 under the control of the controller; the controller is used for controlling the opening and closing of the fan 5 and controlling the wind speed of the fan 5 under the condition that the fan 5 is opened according to the concentration value of bacteria in the compartment 1. Specifically, the fan 5 increases the oxidation rate of the free hydroxyl and active oxygen and the volatile organic substances in the compartment 1, shortens the sterilization time and increases the sterilization and odor purification rate by adjusting the air flow rate of the compartment 1. The number of the fans 5 can be 1, and the fans can also be an air inlet fan and an air outlet fan, so that the circulation of indoor air is better realized.
In some embodiments, a detection device is also provided within the compartment 1; the detection device is used for identifying whether the chamber 1 is in a closed state or not, allowing the degerming device to be started if the chamber 1 is in the closed state, and sending a reminding message to remind a user of the refrigerator to close the chamber 1 if the chamber 1 is not in the closed state. Particularly, when the compartment 1 is in a closed state, a better sterilization environment can be created, and quick and effective sterilization is realized. And the bacteria concentration sensor is helpful for more sensitively detecting the bacteria concentration change in the chamber 1, feeding back the sterilization effect, and further more quickly adjusting the photocatalytic amount of the photocatalytic template, thereby realizing the more energy-saving sterilization effect.
By adopting the technical scheme of the invention, the refrigerator has better sterilization and odor purification effects, realizes the sterilization function without ozone, has lower cost and is safer, and the experience of users is improved. Meanwhile, the photocatalytic amount in the sterilizing device is adjusted through the concentration value of bacteria in the chamber 1, so that the energy is saved and the efficiency is high.
According to an embodiment of the present invention, there is also provided a sterilization control method of a refrigerator, corresponding to the refrigerator, including: under the condition that the compartment 1 is closed, controlling the sterilizing device to be opened when the refrigerator runs in a sterilizing mode; detecting the bacterial concentration value inside said compartment 1; and controlling the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the chamber 1 so as to adjust the amount of free hydroxyl and active oxygen with a sterilization effect generated by the photocatalytic reaction of the photocatalytic template 31 under the irradiation of the light waves.
Specifically, different gears may be set according to the sterilization capability of the sterilization apparatus in the compartment 1, and preset bacteria concentration ranges corresponding to the respective gears may be set. The material of the photocatalytic template 31 in the photocatalytic assembly 3, the intensity of the light source assembly, the wind speed of the fan and other factors all affect the sterilization capability of the sterilization device. When the bacteria concentration sensor detects that the bacteria concentration value in the compartment is in a corresponding preset bacteria concentration range, the controller controls the bacteria removing device to adjust to a first gear; when the bacteria concentration sensor detects that the bacteria concentration value in the compartment 1 is in a preset bacteria concentration range corresponding to the second gear, the controller controls the degerming device to adjust to the second gear. The bacteria concentration value can be detected only when the sterilization mode is started, the gear of the sterilization device is adjusted according to the bacteria concentration value in the chamber 1, the current gear is continuously operated until the bacteria concentration value reaches a target concentration value, and the sterilization mode is exited; or continuously detecting the bacterial concentration value after the bacteria removing device is started, and when the preset bacterial concentration range corresponding to the bacterial concentration value in the compartment 1 is changed, controlling the bacteria removing device to be adjusted to a corresponding gear by the controller until the bacterial concentration value reaches a target concentration value, and exiting the bacteria removing mode.
Whether the current sterilization capacity of the sterilization device meets the sterilization requirement can also be judged according to the change of the bacterial concentration value in the preset time, and then the sterilization device is adjusted to be matched with a gear to realize high-efficiency sterilization and energy conservation. The adjustment method, which is similar to the above-mentioned adjustment method and is set according to the bacteria removing capability of the bacteria removing device in the compartment 1 at different gears, will be described in detail below, and will not be described in detail below.
In some embodiments, the bacterial concentration value within said compartment 1 is detected; controlling the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the chamber 1, so as to adjust the amount of free hydroxyl and active oxygen with degerming effect generated by the photocatalytic reaction of the photocatalytic template 31 under the irradiation of the light wave, wherein the amount of free hydroxyl and active oxygen with degerming effect comprises: detecting the concentration value of bacteria in the chamber 1 at preset intervals; controlling the photocatalytic amount of the photocatalytic template 31 according to the change of the bacterial concentration value of the chamber 1 within a preset time; if the bacteria concentration value of the chamber 1 in a preset time is reduced, controlling the photocatalytic amount of the photocatalytic template 31 to be unchanged; if the bacteria concentration value of the chamber 1 in the preset time is not changed, the photocatalytic amount of the photocatalytic template 31 is controlled to be increased.
In some embodiments, controlling the photocatalytic amount of the photocatalytic template 31 according to the concentration value of the bacteria in the compartment 1 to adjust the amount of free hydroxyl groups and active oxygen with sterilization effect generated by the photocatalytic reaction of the photocatalytic template 31 under the irradiation of the light waves, further comprises: controlling the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the compartment 1, comprising: determining the photocatalytic amount of the photocatalytic template 31 according to the concentration value of bacteria in the chamber 1; determining the photocatalytic area of the photocatalytic template 31 according to the photocatalytic amount of the photocatalytic template 31; under the condition that the photocatalyst component 3 further comprises a shielding component, the shielding component shields the rest area of the photocatalyst template 31 except the photocatalytic area according to the photocatalytic area of the photocatalyst template 31, so that the rest area of the photocatalyst template 31 except the photocatalytic area cannot irradiate the light wave, the photocatalytic amount of the photocatalyst template 31 is adjusted, and the amount of free hydroxyl and active oxygen with sterilization effect generated by the photocatalytic reaction of the photocatalyst template 31 under the irradiation of the light wave is adjusted.
In a specific embodiment, when the refrigerator operates in a sterilization mode, the sterilization device is turned on; the steps of detecting the bacterial concentration value in the chamber 1 and adjusting the gear of the degerming device according to the bacterial concentration value in the chamber 1 comprise: turning on the light source assembly 2 and the photocatalyst assembly 3, the movable baffle 32 operates in an initial gear; acquiring a bacterial concentration value in the chamber 1 at preset intervals; controlling the operation gear of the movable baffle 32 according to the change of the bacteria concentration value of the compartment 1 in a preset time; if the bacteria concentration value of the compartment 1 in a preset time is reduced, controlling the movable baffle 32 to continue to operate the current gear; if the bacteria concentration value of the compartment 1 in a preset time is not changed, controlling the movable baffle 32 to be adjusted to be higher to a next gear; the area of the photocatalyst component 3 which can be irradiated by the ultraviolet light waves in the initial gear is the smallest, and the area of the photocatalyst template 31 which can be irradiated by the ultraviolet light waves is increased every time the movable baffle 32 is adjusted to the next gear; and the refrigerator closes the sterilization mode until the bacteria concentration value in the compartment 1 is detected to reach the target concentration value.
Specifically, the user starts the sterilization function according to the requirement, and the refrigerator runs the sterilization mode, and the sterilization device is only under the condition that the sterilization device comprises the light source component 2 and the photocatalyst component 3. The gear of the degerming device is the gear of the movable baffle 32, and the degerming device is in a closed state when not in the degerming mode, that is, the movable baffle 32 completely covers the photocatalytic template 31. The preset time and the target concentration value can be customized, and in the technical scheme, the preset time is uniformly set to be 10 minutes; the target concentration value was 0. More specifically, after the degerming mode is started, the bacteria concentration value in the compartment 1 is detected, the degerming device is controlled to be opened from the closed state, and the movable baffle 32 is adjusted to the initial gear, namely the S1 gear shown in FIG. 3. After the operation is carried out for 10 minutes, the bacterial concentration value in the chamber 1 is detected again, if the bacterial concentration value is reduced, the movable baffle 32 has a good bacteria removing effect in the gear, the current gear is continuously operated for 10 minutes, then the bacterial concentration value is detected again, and the operation gear of the movable baffle 32 is adjusted according to the change of the bacterial concentration value. If the bacteria concentration value is not changed, which indicates that the bacteria removing capability of the movable baffle 32 in the gear is insufficient, the movable baffle 32 is controlled to be adjusted to the next gear, such as the S1 gear to the S2 gear shown in FIG. 4. And (3) operating the current gear for 10 minutes, detecting the bacterial concentration value again, continuously operating the gear for preset time if the bacterial concentration value is smaller, judging again until the next preset time is reached, and continuously controlling the movable baffle 32 to be increased to the next gear if the bacterial concentration value is not changed, namely adjusting from the S2 gear to the S3 gear as shown in FIG. 5. Wherein the area of the photocatalytic template 31 under the S1 gear irradiated by the ultraviolet light wave is smaller than the area of the photocatalytic template 31 under the S2 gear irradiated by the ultraviolet light wave. Wherein the area of the photocatalytic template 31 under the S2 gear irradiated by the ultraviolet light wave is smaller than the area of the photocatalytic template 31 under the S3 gear irradiated by the ultraviolet light wave.
Here, instead of adjusting the area of the photocatalytic template 31 irradiated by the ultraviolet light waves, the intensity of the ultraviolet light waves irradiated by the light source assembly 2 is adjusted to be the lowest when the degerming device is in the initial gear, and the intensity of the ultraviolet light waves irradiated by the light source assembly 2 is increased when the degerming device is adjusted to be higher than the next gear; the specific adjustment method is the same, and is not described herein again.
In some embodiments, further comprising: in the case that the sterilization apparatus further includes a fan 5, controlling opening and closing of the fan 5 according to an air circulation amount of an inner space of the compartment 1, and controlling a wind speed of the fan 5 in the case that the fan 5 is turned on; and under the condition that the degerming device is started, controlling the wind speed of the fan 5 to be a first set gear.
In some embodiments, in case the sterilisation apparatus further comprises a fan 5, the sterilisation apparatus is switched on when the refrigerator is running in a sterilisation mode; the steps of detecting the bacterial concentration value in the chamber 1 and adjusting the gear of the degerming device according to the bacterial concentration value in the chamber 1 comprise: turning on the light source assembly 2 and the photocatalyst assembly 3, and controlling the movable baffle 32 to operate in an initial gear; meanwhile, the fan 5 is controlled to be closed or in a first gear; acquiring a bacterial concentration value in the chamber 1 at preset intervals; controlling the operation gear of the degerming device according to the change of the bacterial concentration value of the chamber 1 in a preset time; the operating gears of the degerming device now include the fan gear and the gear of the movable flap 32. If the bacteria concentration value of the compartment 1 in a preset time is reduced, controlling the movable baffle 32 to continue to operate the current gear; if the bacteria concentration value of the compartment 1 is not changed within a preset time, controlling at least one of the movable baffle 32 and the fan 5 to be adjusted to a next gear; wherein the area of the movable baffle 32 which can be irradiated by the ultraviolet light waves in the initial gear is the smallest, and the area of the movable baffle 32 which can be irradiated by the ultraviolet light waves is increased every time the movable baffle 32 is adjusted up to the next gear; when the fan 5 is adjusted to the next gear, the wind speed of the fan 5 is increased; and the refrigerator closes the sterilization mode until the bacteria concentration value in the compartment 1 is detected to reach the target concentration value.
Further, when the fan 5 is in the off state, the fan 5 is controlled to be shifted up to the next gear, specifically, the fan 5 is controlled to be shifted up to the first set gear, that is, the gear with the lowest speed among the opened fan gears.
Under the condition that bacteria removing device still includes fan 5, when opening bacteria removing device, can only open photocatalyst component 3, when needs improve bacteria removing device's degerming effect, further open fan 5, adjust photocatalyst component 3 with at least one of fan 5 realizes strengthening the degerming ability. The adjusting mode more refines the adjusting gear and has better energy-saving effect. Also can open photocatalyst component 3 and fan 5 simultaneously, according to the change of the bacterium concentration value of room 1 in the time of predetermineeing, coordinated control photocatalyst component 3 with fan 5 realizes faster degerming effect, shortens degerming time of only smelling. Specifically, as shown in fig. 6, the bacteria concentration value in the chamber 1 is fed back by the carbon dioxide concentration difference for a preset time period. When the bacteria concentration in the compartment 1 is low, the fan 5 is first adjusted to the L1 position, the fan speed is reduced, and the air flow rate is adjusted. Meanwhile, the bacterial concentration is identified once every 10min by the bacterial concentration sensor 4, and the difference delta C between the carbon dioxide concentration after 10min and the carbon dioxide concentration before 10min is calculated. When the delta C is less than 0, the bacteria concentration is in a descending trend, the current sterilization gear is effective for reducing the bacteria concentration, and the current gear is continuously kept to operate. When Δ C =0, it indicates that the bacteria concentration is unchanged, and the current bacteria gear is invalid for sterilization, the photocatalyst component 3 is further shifted to S2 gear, the effective sterilization area is increased, the speed of the fan 5 is shifted from L1 gear to L2 gear, and Δ C is determined. If delta C is less than 0, the current mode is kept to operate, if delta C =0, the photocatalyst component 3 is adjusted to the S3 gear, the fan speed is increased to the L3 gear, the air circulation speed is increased, and delta C is judged. In the linkage control process, whether the concentration of the bacteria in the chamber 1 is 0 is monitored in real time, and if not, the current mode is continuously kept to operate until the concentration of the bacteria is reduced to 0. In the embodiment, the gear rotating speed of the fan meets L1 < L2 < L3, wherein L1 is the first set gear
In some embodiments, further comprising: detecting the concentration value of bacteria in the chamber 1 in real time; and when detecting that the concentration value of bacteria in the compartment 1 reaches a target concentration value, controlling the sterilizing device to be closed, and exiting the sterilizing mode. Specifically, the target concentration value may be customized to a certain target value, or refer to a bacteria concentration range, and in this embodiment, the target concentration value is 0.
In some embodiments, controlling the sterilizing device to be turned on while the refrigerator operates in the sterilizing mode with the compartment 1 closed includes: when a sterilization function starting instruction sent by a user of the refrigerator is received; detecting whether the compartment 1 is in a closed state; if the compartment 1 is not in a closed state, the refrigerator sends a reminding message to remind a user of the refrigerator to close the compartment 1; and if the compartment 1 is in a closed state, the refrigerator runs a sterilization mode and controls the sterilization device to be started.
Since the processes and functions implemented by the sterilization control method of the refrigerator of this embodiment substantially correspond to the embodiments, principles, and examples of the refrigerator, reference may be made to the related descriptions in the embodiments without being given in detail in the description of this embodiment, which is not described herein again.
By adopting the technical scheme of the invention, the sterilizing device of the refrigerator can be intelligently adjusted through the change of the bacterial concentration, so that the sterilizing capability of the refrigerator required under different bacterial concentrations is more matched with the photocatalytic amount of the photocatalytic template, the refrigerator is more efficient and energy-saving, and the sterilizing and odor-removing speed is further improved through the linkage control of the photocatalyst component 3 and the fan 5.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (12)
1. The refrigerator is characterized by comprising a chamber (1) and a controller, wherein a sterilizing device is arranged in the chamber (1), and comprises a light source component (2), a photocatalyst component (3) and a bacteria concentration sensor (4); wherein the content of the first and second substances,
the light source assembly (2) is used for emitting light waves capable of promoting the photocatalytic reaction of the photocatalyst assembly (3) to the photocatalyst assembly (3) so that the photocatalyst assembly (3) is in the irradiation range of the light source assembly (2);
the photocatalyst component (3) is provided with a photocatalyst template (31); the photocatalytic template (31) performs a photocatalytic reaction under the irradiation of the light waves to generate free hydroxyl and active oxygen with oxidation capacity, and is used for sterilizing the inner space of the compartment (1);
the bacteria concentration sensor (4) for detecting a bacteria concentration value within the compartment (1);
the controller is used for controlling the photocatalytic amount of the photocatalytic template (31) according to the concentration value of bacteria in the compartment (1) so as to adjust the amount of free hydroxyl and active oxygen with a sterilization effect generated by the catalytic reaction of the photocatalytic template (31) under the irradiation of the light waves.
2. The refrigerator according to claim 1, wherein the photocatalyst module (3) further comprises a shielding module;
the controller is used for controlling the photocatalytic amount of the photocatalytic template (31) according to the concentration value of bacteria in the compartment (1), and comprises the following components:
the controller is used for determining the photocatalytic amount of the photocatalytic template (31) according to the concentration value of bacteria in the compartment (1); determining the photocatalytic area of the photocatalytic template (31) based on the photocatalytic amount of the photocatalytic template (31);
the shielding component is used for shielding the rest area of the photocatalytic template (31) except the photocatalytic area according to the photocatalytic area of the photocatalytic template (31) so that the rest area of the photocatalytic template (31) except the photocatalytic area cannot irradiate the light wave, the photocatalytic amount of the photocatalytic template (31) is adjusted, and the amount of free hydroxyl and active oxygen with the sterilization function generated by catalytic reaction of the photocatalytic template (31) under the irradiation of the light wave is adjusted.
3. The refrigerator according to claim 2, wherein the shutter assembly includes a movable shutter (32), a moving rail, and an electric control member; wherein the content of the first and second substances,
the movable baffle (32) is positioned above the photocatalytic template (31) and is parallel to the photocatalytic template (31);
the moving track is arranged between the movable baffle (32) and the photocatalytic template (31) so that the movable baffle (32) and the photocatalytic template (31) can move relatively along the moving track;
the electric control component is used for driving the movable baffle (32) to move along the moving track under the control of the controller, so that the areas of the rest parts of the photocatalytic template (31) except the photocatalytic area are adjusted, the area of the photocatalytic template (31) which can be irradiated by the light wave is adjusted, and the covered part of the photocatalytic template (31) cannot be irradiated by the light wave.
4. The refrigerator according to claim 3, wherein the movable shutter (32) has more than one moving position, and the movable shutter (32) covers the area of the photocatalytic template (31) except the photocatalytic area in different amounts in different moving positions.
5. The refrigerator according to any one of claims 1 to 4, characterized in that the sterilizing device further comprises a fan (5);
the fan (5) is used for adjusting the air flow flux of the compartment (1) under the control of the controller;
the controller is used for controlling the opening and closing of the fan (5) and controlling the wind speed of the fan (5) under the condition that the fan (5) is opened according to the bacteria concentration value in the compartment (1).
6. The refrigerator according to any one of claims 1 to 5, characterized in that a detection device is further arranged in the compartment (1);
the detection device is used for identifying whether the chamber (1) is in a closed state or not, allowing the sterilizing device to be started if the chamber (1) is in the closed state, and sending out a reminding message to remind a user of the refrigerator to close the chamber (1) if the chamber (1) is not in the closed state.
7. A sterilization control method of a refrigerator according to any one of claims 1 to 6, comprising:
under the condition that the compartment (1) is closed, controlling the sterilizing device to be opened when the refrigerator runs in a sterilizing mode;
detecting a bacterial concentration value within the compartment (1);
and controlling the photocatalytic amount of the photocatalytic template (31) according to the concentration value of bacteria in the compartment (1) so as to adjust the amount of free hydroxyl and active oxygen with sterilization effect generated by the photocatalytic reaction of the photocatalytic template (31) under the irradiation of the light waves.
8. The sterilization control method of a refrigerator according to claim 7, characterized in that a bacterial concentration value in the compartment (1) is detected; controlling the photocatalytic amount of the photocatalytic template (31) according to the concentration value of bacteria in the compartment (1) so as to adjust the amount of free hydroxyl and active oxygen with sterilization effect generated by the photocatalytic reaction of the photocatalytic template (31) under the irradiation of the light waves, wherein the amount of the free hydroxyl and the active oxygen with sterilization effect comprises the following steps:
detecting the bacterial concentration value in the chamber (1) every preset time interval;
controlling the photocatalytic amount of the photocatalytic template (31) according to the change of the bacterial concentration value of the chamber (1) within a preset time;
if the bacteria concentration value of the compartment (1) in a preset time is reduced, controlling the photocatalytic amount of the photocatalytic template (31) to be unchanged;
and if the bacteria concentration value of the compartment (1) in a preset time is not changed, controlling the photocatalytic amount of the photocatalytic template (31) to increase.
9. The sterilization control method for refrigerator according to claim 7 or 8, wherein the photocatalytic amount of the photocatalytic template (31) is controlled according to the concentration value of bacteria in the compartment (1) to adjust the amount of free hydroxyl and active oxygen with sterilization effect generated by the photocatalytic reaction of the photocatalytic template (31) under the irradiation of the light wave, further comprising:
controlling the photocatalytic amount of the photocatalytic template (31) as a function of the concentration value of bacteria inside the compartment (1), comprising:
determining the photocatalytic amount of the photocatalytic template (31) according to the concentration value of bacteria in the compartment (1); determining a photocatalytic area of the photocatalytic template (31) based on a photocatalytic amount of the photocatalytic template (31);
under the condition that the photocatalyst component (3) further comprises a shielding component, the shielding component shields the rest part of the area of the photocatalyst template (31) except the photocatalytic area according to the photocatalytic area of the photocatalyst template (31) so that the rest part of the area of the photocatalyst template (31) except the photocatalytic area can not irradiate the light wave, the regulation of the photocatalytic amount of the photocatalyst template (31) is realized, and the regulation of the amount of free hydroxyl and active oxygen with the sterilization effect generated by the photocatalytic reaction of the photocatalyst template (31) under the irradiation of the light wave is further realized.
10. The sterilization control method of a refrigerator according to claim 9, further comprising:
in case the sterilization apparatus further comprises a fan (5), controlling the opening and closing of the fan (5) according to the air flow rate of the inner space of the compartment (1), and controlling the wind speed of the fan (5) in case the fan (5) is opened;
and under the condition that the degerming device is started, controlling the wind speed of the fan (5) to be a first set gear.
11. The sterilization control method of a refrigerator according to claim 7, further comprising:
detecting in real time the bacterial concentration value inside said compartment (1);
and when detecting that the concentration value of bacteria in the compartment (1) reaches a target concentration value, controlling the sterilizing device to be closed, and exiting the sterilizing mode.
12. The sterilization control method of a refrigerator according to claim 7, wherein controlling the sterilization device to be turned on while the refrigerator operates in the sterilization mode with the compartment (1) closed comprises:
when a sterilization function starting instruction sent by a user of the refrigerator is received;
detecting whether the compartment (1) is in a closed state;
if the compartment (1) is not in a closed state, the refrigerator sends out a reminding message to remind a user of the refrigerator to close the compartment (1);
if the compartment (1) is in a closed state, the refrigerator operates in a sterilization mode and controls the sterilization device to be started.
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| CN113108537A (en) * | 2021-04-19 | 2021-07-13 | 长虹美菱股份有限公司 | Odor-removing and sterilizing device, refrigerator system and refrigerator control method |
| CN115218372A (en) * | 2022-06-30 | 2022-10-21 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
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