CN118111173A - Refrigerator and sterilization and deodorization control method thereof - Google Patents

Abstract

The invention provides a refrigerator and a sterilization and deodorization control method thereof, wherein the refrigerator comprises a refrigerator body and a sterilization and deodorization device, the refrigerator body is provided with a storage compartment, the sterilization and deodorization device comprises an electrode group and an ultraviolet lamp, the electrode group is configured to ionize air to generate ion wind released to the storage compartment, and the ultraviolet lamp is configured to be controlled to be started to generate ultraviolet rays so as to decompose ozone generated along with the generation of the ion wind; the sterilization and deodorization control method comprises the following steps: acquiring a starting mode of the sterilization and deodorization device, and determining an ozone threshold according to the starting mode; detecting the ozone concentration of the storage compartment; judging whether the ozone concentration is greater than an ozone threshold value; when the ozone concentration is greater than the ozone threshold, the ultraviolet lamp is turned on. The sterilization and deodorization control method can decompose ozone according to the starting modes, and on the premise of ensuring no ozone poisoning, the ozone concentration is matched with the corresponding starting mode, so that the diversity of each starting mode is ensured.

Description

Refrigerator and sterilization and deodorization control method thereof

Technical Field

The invention relates to a sterilization and deodorization technology of a refrigerator, in particular to a refrigerator and a sterilization and deodorization control method thereof.

Background

Along with the increasing development of society and the continuous improvement of living standard of people, the living rhythm of people is faster and faster, so that people are willing to buy a lot of foods in the refrigerator, and the refrigerator becomes one of the household appliances indispensable in daily life of people.

However, the following problems often occur after a large amount of food is stored in a refrigerator: the user may forget that some foods are stored in the refrigerator, and the foods are out of date, so that the wastes are caused. The food which is out of date and deteriorated in the storage space can emit rotten and unpleasant smell to influence the air environment of the whole storage space. The air environment with poor storage space can also cause other non-spoiled foods to be affected. More importantly, rotten and spoiled foods can grow a large amount of bacteria, so that the food safety of users cannot be guaranteed. The bad smell of the storage space seriously affects the use experience of the user after the refrigerator door body is opened.

Disclosure of Invention

An object of the present invention is to overcome at least one of the drawbacks of the prior art, and to provide a refrigerator having a sterilizing and deodorizing device to release ion wind to a storage compartment, to achieve sterilizing and deodorizing, and to provide a sterilizing and deodorizing control method for the refrigerator, which can decompose ozone according to a start-up mode, and which can match ozone concentration with a corresponding start-up mode without occurrence of "ozone poisoning", thereby guaranteeing diversity of each start-up mode.

It is a further object of the present invention to provide a storage compartment having an ozone concentration that matches a powerful mode or a normal mode after decomposition.

In particular, the invention provides a sterilization and deodorization control method of a refrigerator, the refrigerator comprises a refrigerator body and a sterilization and deodorization device, the refrigerator body is provided with a storage compartment, the sterilization and deodorization device comprises an electrode group and an ultraviolet lamp, the electrode group is configured to ionize air to generate ion wind released to the storage compartment, and the ultraviolet lamp is configured to be controlled to be started to generate ultraviolet rays so as to decompose ozone generated along with the generation of the ion wind; the sterilization and deodorization control method comprises the following steps: acquiring a starting mode of the sterilization and deodorization device, and determining an ozone threshold according to the starting mode; detecting the ozone concentration of the storage compartment; judging whether the ozone concentration is greater than an ozone threshold value; when the ozone concentration is greater than the ozone threshold, the ultraviolet lamp is turned on.

Optionally, the starting mode includes a powerful mode and a normal mode, wherein the powerful mode is configured to release more ion air volume than the normal mode; and the step of determining the ozone threshold according to the start-up mode further comprises: when the starting mode is a powerful mode, the ozone threshold is configured to be a first ozone threshold; when the starting mode is the normal mode, the ozone threshold is configured to be a second ozone threshold; wherein the first ozone threshold is greater than the second ozone threshold.

Optionally, the sterilization and deodorization device further comprises a catalytic module configured to catalytically decompose ozone, and the catalytic activity of the catalytic module increases with an increase in temperature; the sterilization and deodorization control method further comprises the following steps: when in the strong efficiency mode and the ozone concentration is larger than a first ozone threshold value, controlling the temperature of the catalytic module to be in a first temperature interval; when in the strong efficiency mode and the ozone concentration is smaller than the first ozone threshold value, controlling the temperature of the catalytic module to be in a second temperature interval; wherein the right endpoint value of the second temperature interval is smaller than the left endpoint value of the first temperature interval.

Optionally, the sterilization and deodorization control method further comprises: when in the normal mode and the ozone concentration is greater than the second ozone threshold, controlling the temperature of the catalytic module to be in a third temperature interval; when in the normal mode and the ozone concentration is smaller than the second ozone threshold value, controlling the temperature of the catalytic module to be in a fourth temperature interval; wherein, the right end point value of the fourth temperature interval is smaller than the left end point value of the third temperature interval.

Optionally, the right endpoint value of the first temperature interval is smaller than the left endpoint value of the third temperature interval.

Optionally, the step after starting the ultraviolet lamp further comprises: and when the ozone concentration is smaller than the ozone threshold value, the ultraviolet lamp is turned off.

In particular, the present invention also provides a refrigerator including: the box body is provided with a storage compartment; a sterilizing and deodorizing device comprising an electrode set configured to ionize air to generate an ion wind released to the storage compartment, and an ultraviolet lamp configured to be controllably activated to generate ultraviolet rays to decompose ozone generated accompanying the generation of the ion wind; a controller including a memory and a processor, wherein the memory stores a machine executable program that when executed by the processor implements a sterilization and deodorization control method according to any one of the above.

Optionally, the sterilization and deodorization device further comprises a shell, wherein a cavity is defined in the shell, and the shell is provided with an air inlet and an air outlet; the electrode group is arranged in the cavity and comprises an excitation electrode and a receiving electrode, the receiving electrode is positioned at one side close to the air outlet, and the excitation electrode is positioned at one side of the receiving electrode, which is away from the air outlet.

Optionally, the sterilization and deodorization device further comprises a catalytic module, wherein the catalytic module is arranged in the cavity and is positioned between the receiving electrode and the air outlet; and the ultraviolet lamp is positioned between the catalytic module and the air outlet.

Alternatively, the ultraviolet lamp is configured as an ultraviolet cold cathode tube, and the ultraviolet lamp is arranged along a length direction of the catalytic module.

According to the sterilization and deodorization control method, the ozone threshold value is determined according to the starting mode, the ozone threshold value can be understood as the critical value of the ozone concentration under the corresponding starting mode, and the ozone concentration standard to be maintained by each starting mode is inconsistent, so that the ozone threshold value is determined according to the classification of the starting mode in the process of adjusting the ozone concentration, if the ozone concentration of the storage compartment is greater than the ozone threshold value of the corresponding starting mode, the ultraviolet lamp is started to decompose part of ozone, so that the ozone concentration returns to the reasonable range under the corresponding starting mode, the ozone poisoning of a user is avoided, the adjusted ozone concentration is matched with the corresponding starting mode, and the sterilization and deodorization diversity is ensured.

Further, according to the sterilization and deodorization control method, the starting mode comprises a powerful mode and a common mode, and the powerful mode is configured to release more ion air quantity than the common mode; and the step of determining the ozone threshold according to the start-up mode further comprises: when the start-up mode is the powerful mode, the ozone threshold is configured to be a first ozone threshold. When the start-up mode is the normal mode, the ozone threshold is configured to be a second ozone threshold. Wherein the first ozone threshold is greater than the second ozone threshold. Under the strong effect mode, when the ozone concentration of storing room is greater than first ozone threshold value, the ultraviolet lamp is opened, under ordinary mode, when the ozone concentration of storing room is greater than second ozone threshold value, the ultraviolet lamp is opened, can realize like this that strong effect mode and ordinary mode's ozone concentration keep different after the ultraviolet lamp adjusts to match corresponding start mode.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a sectional view of a refrigerator according to an embodiment of the present invention;

Fig. 3 is a schematic view of a sterilizing and deodorizing device in a refrigerator according to one embodiment of the present invention;

fig. 4 is a schematic view of a sterilizing and deodorizing device in a refrigerator according to an embodiment of the present invention, with an upper cover portion hidden;

fig. 5 is a schematic view of a sterilizing and deodorizing device in a refrigerator according to one embodiment of the present invention;

Fig. 6 is a schematic view of a control principle of a refrigerator according to an embodiment of the present invention;

fig. 7 is a flowchart of a sterilization and deodorization control method of a refrigerator according to an embodiment of the present invention;

Fig. 8 is a flowchart of a sterilization and deodorization control method of a refrigerator according to another embodiment of the present invention.

Detailed Description

Referring to fig. 1 and 2, fig. 1 is a schematic view of a refrigerator 1 according to an embodiment of the present invention, and fig. 2 is a sectional view of the refrigerator 1 according to an embodiment of the present invention. The present invention provides a refrigerator 1, and the refrigerator 1 may generally include a cabinet 20 and a door 30.

The cabinet 20 may include an outer shell 28 and one or more inner liners 22, the outer shell 28 being located at the outermost side of the overall refrigerator 1 to protect the overall refrigerator 1. The space between the liner 22 and the outer shell 28 is filled with a thermal insulation material (forming a foam layer 26) to reduce the heat dissipation of the liner 22. Each liner 22 may define one or more storage compartments 24, and the storage compartments 24 may be configured as a refrigerator compartment, freezer compartment, temperature change compartment, or the like. For example, as shown in fig. 1 to 3, the number of the liners 22 may be two, and the storage compartments 24 of the two liners 22 may be configured as a refrigerating compartment and a freezing compartment, respectively. Of course, those skilled in the art will recognize that the number, function and arrangement of the specific storage compartments 24 may be configured according to the requirement in advance, which will not be described herein.

The door body 30 may be disposed at the front of the box body 20 for opening and closing the storage compartments 24, the door body 30 may be disposed at one side of the box body 20 in a hinged manner, and the storage compartments 24 may be opened and closed in a pivoting manner, and the number of the door bodies 30 may be matched with the number of the storage compartments 24, so that the storage compartments 24 may be opened individually one by one.

Referring to fig. 2, further, the refrigerator 1 may further include a refrigeration system operable to provide cooling to each storage compartment 24. Specifically, the refrigeration system may include a compressor 60, a condenser (not shown), and an evaporator 70 connected in series in a refrigerant circuit.

The compressor 60 is used as a power of the refrigerating system, a compressor compartment is provided at the bottom of the rear side of the case 20, and the compressor 60 may be provided in the compressor compartment. The compressor 60 increases the pressure and temperature of the refrigerant vapor by compression, creating a condition for transferring heat of the refrigerant vapor to an external environment medium, i.e., compressing the low-temperature low-pressure refrigerant vapor to a high-temperature high-pressure state so that the refrigerant vapor can be condensed using normal-temperature air or water as a cooling medium.

The condenser may also be disposed in the compressor compartment, and is a heat exchange device that uses the environment to remove heat from the high-temperature and high-pressure refrigerant vapor from the compressor 60, thereby cooling and condensing the high-temperature and high-pressure refrigerant vapor into a refrigerant liquid at a high pressure and a normal temperature.

An evaporator 70 may be provided in the cabinet 20 to supply cold to the storage compartment 24 of the refrigerator 1. The case 20 may be provided therein with an evaporator chamber 29, the evaporator chamber 29 being in communication with each storage compartment 24 through a wind path system, and an evaporator 70 being provided in the evaporator chamber 29.

It should be noted that the above is only one arrangement mode of each component of the refrigeration system in the refrigerator 1 of the present embodiment, and those skilled in the art may obtain other arrangement modes in the prior art, for example, the compressor 60 and the condenser are arranged on the top of the box 20, which is not described herein.

Referring to fig. 2, further, the refrigerator 1 may further include a sterilizing and deodorizing device 10. The sterilization and deodorization device 10 can be arranged in the storage compartment 24, and can release ion wind for sterilization and deodorization to the storage compartment 24, so that bacteria and peculiar smell are effectively eliminated, the food safety of a user is ensured, and the use experience of the user is effectively improved.

Referring to fig. 3 to 5, fig. 3 is a schematic view of a sterilizing and deodorizing device 10 in a refrigerator 1 according to an embodiment of the present invention, fig. 4 is a schematic view of a sterilizing and deodorizing device 10 in a refrigerator 1 according to an embodiment of the present invention at another view, and fig. 5 is a schematic view of a sterilizing and deodorizing device 10 in a refrigerator 1 according to an embodiment of the present invention. Specifically, the sterilization and odor removal device 10 may further include a housing 100, an electrode assembly 200, and a catalytic module 90.

The housing 100 defines a cavity therein, and the housing 100 further has a plurality of air inlets 124c and a plurality of air outlets 112a communicating the cavity with the storage compartment 24. Air from the storage compartment 24 may enter the cavity through a plurality of air inlets 124c and be exhausted into the storage compartment 24 through the air outlets 112a.

Referring to fig. 4, the electrode assembly 200 is disposed in the cavity, and may include an excitation electrode 210 and a receiving electrode 220, wherein the receiving electrode 220 is disposed at a side close to the exhaust port 112a, and the excitation electrode 210 is disposed at a side of the receiving electrode 220 away from the exhaust port 112a at intervals.

The sterilization and deodorization apparatus 10 may further include a control circuit (not shown) capable of controlling the high voltage power supply to generate a potential difference between the excitation electrode 210 and the receiving electrode 220, and using the potential difference to generate ion wind that promotes collisions with air molecules entering the cavity and is discharged from the plurality of air outlets 112 a.

The corona discharge may be classified into a positive polarity and a negative polarity according to the polarity of the power supply voltage used. The direction of the ion wind is directed from the high voltage electrode to the low electrode, whether positive or negative. The excitation electrode 210 in this embodiment may be a high voltage electrode and the receiving electrode 220 may be a low electrode. That is, the ion wind is blown toward the receiving electrode 220 by the excitation electrode 210.

Referring to fig. 5, the arrow direction in fig. 5 refers to the flow direction of air, circles represent electrons, squares represent suspended organisms, triangles represent odor molecules, and ellipses represent air molecules. The following describes a specific process of implementing the sterilization and deodorization function of the sterilization and deodorization device 10: air in the storage compartment 24 can enter the cavity through the plurality of air inlets 124c, the tips of the excitation electrodes 210 ionize to generate high-energy electrons, and the electrons directionally move under the action of an electric field and collide with air molecules, so that the air molecules move to generate ion wind blowing to one side of the receiving electrode 220. The electrons break up the odor molecules while moving directionally, exciting oxygen to generate ozone, and the high voltage ionization of the exciting electrode 210 breaks down the cells of the suspended organisms for sterilization.

In addition, since the ionized electrons move directionally in the electric field at a high speed, the electrons can transfer their own momentum to gas molecules in the air to form mild (low wind speed) ion wind, so that sterilization and deodorization of the storage compartment 24 are realized, and the sterilization and deodorization device 10 does not need to be provided with an additional mechanical fan to promote ion wind diffusion.

The receiving electrode 220 may also have a mesh shape so as to allow the air after sterilization and deodorization to pass therethrough, thereby facilitating the discharge from the air outlet 112 a. Since oxygen in the air may be oxidized into ozone during the discharge, a large amount of ozone may cause discomfort to the user, a catalytic module 90 may be provided on an air flow path of the ion wind to the air outlet 112a to catalytically decompose ozone generated along with the generation of the ion wind.

Referring to FIG. 4, in some embodiments, the catalytic module 90 may be disposed within the cavity between the receiving electrode 220 and the exhaust port 112 a.

The catalytic module 90 may include a substrate and a catalytic coating. The substrate may be ceramic or metal and the catalytic coating is a noble metal and/or a transition metal oxide. The catalytic module 223 is a catalytic honeycomb monolith, i.e., the catalytic module 223 employs a honeycomb catalyst. The honeycomb catalyst has the characteristics of large area, high activity, small catalyst volume, more catalytic active substances than other types, capability of maintaining activity during catalytic regeneration, capability of greatly reducing production cost, repeated recycling and cyclic regeneration. In short, the honeycomb catalyst has the advantages of large surface area, high activity, small volume and the like.

The substrate is selected from ceramic or metal because ceramic or metal is capable of generating heat by electrical conduction and is prone to the adhesion of catalytic coatings. The catalytic coating is a noble metal and/or a transition metal oxide, and its catalytic activity may be improved with an increase in temperature, so when it is desired to improve the catalytic efficiency of the catalytic module 90, the substrate may be energized to heat the catalytic coating, thereby improving the catalytic activity of the catalytic coating.

Referring to fig. 4, in some embodiments, the sterilizing and deodorizing device 10 may further include an ultraviolet lamp 300, wherein the ultraviolet lamp 300 may be disposed in the cavity and located between the catalytic module 90 and the air outlet 112a, i.e., in the direction of air flow, and the ultraviolet lamp 300 is located downstream of the catalytic module 90.

The ultraviolet lamp 300 is capable of emitting ultraviolet rays having a wavelength of 253.6nm, and ozone is decomposed by the ultraviolet irradiation. Since the ultraviolet lamp 300 is downstream of the catalytic module 90, the ultraviolet lamp 300 may serve as a means for assisting in decomposing ozone. When the concentration of ozone in the air stream blown out from upstream thereof (the catalytic module 300) is too high, the ultraviolet lamp 300 can be controlled to be activated, so that the concentration of ozone in the air stream discharged from the air outlet 112a meets the intended target, preventing the user from "ozone poisoning".

In some specific embodiments, the ultraviolet lamp 300 is configured as an ultraviolet cold cathode tube, and the ultraviolet lamp 300 is disposed along the length direction of the catalytic module 90, so that the generated ultraviolet light can completely irradiate the catalytic module 90, and the irradiation coverage rate is improved.

Referring to fig. 6, fig. 6 is a schematic diagram of a control principle of a refrigerator 1 according to an embodiment of the present invention. Further, the refrigerator 1 may further include a controller 500, and the controller 500 may include a processor 510 and a memory 520, wherein the memory 520 stores a machine executable program 522, and the machine executable program 522 implements a sterilization and deodorization control method when executed by the processor 510. The sterilization and deodorization control method can select different starting modes to start the ultraviolet lamp, so that the different starting modes keep different ozone concentrations on the premise of avoiding ozone poisoning of a user, and the use diversity of the sterilization and deodorization device is increased.

Referring to fig. 7, fig. 7 is a flowchart of a sterilization and deodorization control method of the refrigerator 1 according to one embodiment of the present invention. In some embodiments, the sterilization and deodorization control method can be realized by the following steps:

step S810, acquiring a starting mode of the sterilization and deodorization device 10, and determining an ozone threshold according to the starting mode.

Step S820, detecting the ozone concentration in the storage compartment 24. Specifically, the ozone concentration can be detected by the ozone detecting device 40.

Step S830, judging whether the ozone concentration is greater than the ozone threshold.

In step S840, when the ozone concentration is greater than the ozone threshold, the ultraviolet lamp 300 is turned on.

In the sterilization and deodorization control method of the present embodiment, the ozone threshold can be understood as a threshold value of ozone concentration in the corresponding start mode. Because the sterilization and deodorization device 10 is preset with a plurality of starting modes according to different demands of users, so as to adapt to different sterilization and deodorization scenes (such as a powerful mode and a common mode), and the ozone concentration standard to be maintained by each starting mode is inconsistent (such as the powerful mode can be kept slightly higher to assist the ion wind to sterilize and deodorize by utilizing the ozone, the common mode can be kept slightly lower and mainly uses the ion wind to sterilize and deodorize), in the process of adjusting the ozone concentration, the ozone threshold is required to be adjusted according to the classification of the starting modes, namely, the ozone threshold is determined according to the starting modes, if the ozone concentration of the storage room 24 is greater than the ozone threshold corresponding to the starting mode, the concentration of ozone generated along with the ion wind is excessively high, and the ultraviolet lamp 300 is started to decompose part of ozone, so that the ozone concentration returns to a reasonable range under the corresponding starting mode, thereby avoiding the ozone poisoning of the users, and ensuring the diversity of sterilization and deodorization.

In some embodiments, the start-up mode includes a robust mode and a normal mode, the robust mode configured to release a greater amount of ion air than the normal mode; and the step of determining the ozone threshold according to the start-up mode further comprises: when the start-up mode is the powerful mode, the ozone threshold is configured to be a first ozone threshold. When the start-up mode is the normal mode, the ozone threshold is configured to be a second ozone threshold. Wherein the first ozone threshold is greater than the second ozone threshold.

That is, in the powerful mode, the ultraviolet lamp 300 is turned on when the ozone concentration of the storage compartment 24 is greater than the first ozone threshold, and in the normal mode, the ultraviolet lamp 300 is turned on when the ozone concentration of the storage compartment 24 is greater than the second ozone threshold. This enables the ozone concentration to be kept different between the powerful mode and the normal mode after adjustment by the ultraviolet lamp 300 to match the corresponding start-up mode.

In some embodiments, the sterilization and deodorization control method further comprises: when in the turbo mode and the ozone concentration is greater than the first ozone threshold, the temperature of the catalytic module 90 is controlled to be in a first temperature interval. When in the turbo mode and the ozone concentration is less than the first ozone threshold, the temperature of the catalytic module 90 is controlled to be in the second temperature interval. Wherein the right endpoint value of the second temperature interval is smaller than the left endpoint value of the first temperature interval.

As can be seen from the above, the means for decomposing ozone in the sterilizing and deodorizing device 10 is two, one is to use the catalytic module 90 to perform catalytic decomposition, and the other is to use the ultraviolet light generated by the ultraviolet lamp 300 to perform decomposition. In some embodiments, the catalytic module 90 may decompose ozone as a conventional decomposition means and the ultraviolet lamp 300 may decompose ozone as an auxiliary means. That is, the catalytic module 90 always maintains a certain catalytic activity to decompose ozone in the ion wind, and since the catalytic activity is increased with the temperature rise, the catalytic activity can be adjusted by adjusting the temperature of the catalytic module 90, the decomposition efficiency of the catalytic module 90 can be adjusted, and the concentration of ozone discharged into the storage compartment 24 can be controlled to be maintained within a reasonable range. When the concentration of ozone is too high and exceeds the decomposing capacity of the catalytic module, the ultraviolet lamp 300 can be started to decompose ozone together, so that the concentration of ozone is ensured not to exceed the standard.

In this embodiment, when the ozone concentration is greater than the first ozone threshold, it is indicated that the ozone concentration has exceeded the critical value of the high-efficiency mode, and at this time, the temperature of the catalytic module 90 is raised to the first temperature range to increase the catalytic activity thereof, and the ultraviolet lamp 300 is started to assist in decomposing ozone, so that the ozone concentration is rapidly reduced. When the ozone concentration is less than the first ozone threshold, it indicates that the ozone concentration has reached a reasonable range in the high-efficiency mode, and at this time, the temperature of the catalytic module 90 is reduced to the second temperature range, and the ultraviolet lamp 300 is turned off, so that the ozone concentration is maintained by using the current catalytic activity of the catalytic module 90.

Further, when in the normal mode and the ozone concentration is greater than the second ozone threshold, the temperature of the catalytic module 90 is controlled to be in the third temperature interval. When in the normal mode and the ozone concentration is less than the second ozone threshold, the temperature of the catalytic module 90 is controlled to be in the fourth temperature interval. Wherein, the right end point value of the fourth temperature interval is smaller than the left end point value of the third temperature interval.

In this embodiment, when the ozone concentration is greater than the second ozone threshold, it is indicated that the ozone concentration has exceeded the threshold value of the normal mode, and at this time, the temperature of the catalytic module 90 is raised to the third temperature interval to increase the catalytic activity thereof, and the ultraviolet lamp 300 is started to assist in decomposing ozone, so that the ozone concentration is rapidly reduced. When the ozone concentration is less than the second ozone threshold, it indicates that the ozone concentration has reached a reasonable range in the normal mode, and at this time, the temperature of the catalytic module 90 is reduced to the fourth temperature interval, and the ultraviolet lamp 300 is turned off, so that the current catalytic activity of the catalytic module 90 is utilized to maintain the ozone concentration.

Since the concentration of ozone required in the normal mode is smaller than that in the powerful mode, the temperature of the catalytic module 90 in the normal mode is higher than that of the catalytic module 90 in the powerful mode when decomposing ozone by the catalytic module 90. In some specific embodiments, the right end value of the first temperature interval is smaller than the left end value of the third temperature interval, so as to ensure that the adjustment effect is achieved.

In some embodiments, the steps after starting the ultraviolet lamp 300 further include: when the ozone concentration is less than the ozone threshold, the ultraviolet lamp 300 is turned off. That is, when the ozone concentration is less than the first ozone threshold in the powerful mode, the ultraviolet lamp 300 is turned off, and when the ozone concentration is less than the second ozone threshold in the normal mode, the ultraviolet lamp 300 is turned off.

Referring to fig. 8, fig. 8 is a flowchart of a sterilization and deodorization control method of the refrigerator 1 according to another embodiment of the present invention. In some embodiments, the sterilization and deodorization control method of the refrigerator 1 may further be performed according to the following steps:

Step S910 obtains a start mode of the sterilization and deodorization apparatus 10.

Step S920, detecting the ozone concentration in the storage compartment 24.

Step S930, determine whether the mode is a powerful mode. If the determination result of step S930 is yes, step S940 is performed.

Step S940, judging whether the ozone concentration is larger than a first ozone threshold. If the determination result of step S940 is yes, step S950 is performed. If the determination result in step S940 is no, step S960 is performed.

In step S950, the ultraviolet lamp 300 is started, and the temperature of the catalytic module 90 is controlled to be within the first temperature range.

In step S960, the temperature of the catalytic module 90 is controlled to be in the second temperature range.

If the determination result in step S930 is no, the start mode is the normal mode, and step S970 is executed.

Step S970, judging whether the ozone concentration is greater than the second ozone threshold. If the determination result of step S970 is yes, step S980 is performed. If the determination result in step S970 is no, step S990 is performed.

In step S980, the ultraviolet lamp 300 is started, and the temperature of the catalytic module 90 is controlled to be in the third temperature range.

In step S990, the temperature of the catalytic module 90 is controlled to be in the fourth temperature range.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A sterilization and deodorization control method of a refrigerator, the refrigerator comprising a cabinet having a storage compartment, and a sterilization and deodorization device including an electrode group configured to ionize air to generate ion wind released to the storage compartment, and an ultraviolet lamp configured to be controllably activated to generate ultraviolet light to decompose ozone generated along with the generation of the ion wind;

the sterilization and deodorization control method comprises the following steps:

Acquiring a starting mode of the sterilization and deodorization device, and determining an ozone threshold according to the starting mode;

detecting the ozone concentration of the storage compartment;

Judging whether the ozone concentration is greater than the ozone threshold;

And when the ozone concentration is greater than the ozone threshold, starting the ultraviolet lamp.

2. The sterilization and deodorization control method according to claim 1, wherein,

The starting mode comprises a powerful mode and a common mode, wherein the powerful mode is configured to release more ion air volume than the common mode; and is also provided with

The step of determining an ozone threshold from the start-up mode further comprises:

when the starting mode is the powerful mode, the ozone threshold is configured to be a first ozone threshold;

When the starting mode is the normal mode, the ozone threshold is configured to be a second ozone threshold;

wherein the first ozone threshold is greater than the second ozone threshold.

3. The sterilization and deodorization control method according to claim 2, wherein,

The sterilization and deodorization device further comprises a catalytic module, wherein the catalytic module is configured to catalytically decompose ozone, and the catalytic activity of the catalytic module is improved along with the rise of temperature;

the sterilization and deodorization control method further comprises the following steps:

when in the strong efficiency mode and the ozone concentration is larger than the first ozone threshold value, controlling the temperature of the catalytic module to be in a first temperature interval;

When in the strong efficiency mode and the ozone concentration is smaller than the first ozone threshold value, controlling the temperature of the catalytic module to be in a second temperature interval;

the right end point value of the second temperature interval is smaller than the left end point value of the first temperature interval.

4. The sterilization and deodorization control method according to claim 3, further comprising:

When in the normal mode and the ozone concentration is greater than the second ozone threshold, controlling the temperature of the catalytic module to be in a third temperature interval;

When in the normal mode and the ozone concentration is smaller than the second ozone threshold value, controlling the temperature of the catalytic module to be in a fourth temperature interval;

Wherein, the right end point value of the fourth temperature interval is smaller than the left end point value of the third temperature interval.

5. The sterilization and deodorization control method according to claim 4, wherein,

The right endpoint value of the first temperature interval is smaller than the left endpoint value of the third temperature interval.

6. The sterilization and deodorization control method according to claim 1, wherein the step after the ultraviolet lamp is activated further comprises:

And when the ozone concentration is smaller than the ozone threshold value, turning off the ultraviolet lamp.

7. A refrigerator, comprising:

The box body is provided with a storage compartment;

A sterilizing and deodorizing device comprising an electrode set configured to ionize air to generate an ion wind released to the storage compartment, and an ultraviolet lamp configured to be controllably activated to generate ultraviolet light to decompose ozone generated accompanying the generation of the ion wind;

A controller comprising a memory and a processor, wherein the memory stores a machine executable program that when executed by the processor implements the sterilization and deodorization control method according to any one of claims 1 to 6.

8. The refrigerator of claim 7, wherein,

The sterilization and deodorization device further comprises a shell, wherein a cavity is defined in the shell, and the shell is provided with an air inlet and an air outlet;

the electrode group is arranged in the cavity and comprises an excitation electrode and a receiving electrode, the receiving electrode is positioned close to one side of the air outlet, and the excitation electrode is positioned on one side of the receiving electrode, which is away from the air outlet.

9. The refrigerator of claim 8, wherein,

The sterilization and deodorization device further comprises a catalysis module, wherein the catalysis module is arranged in the cavity and is positioned between the receiving electrode and the exhaust outlet; and is also provided with

The ultraviolet lamp is positioned between the catalytic module and the air outlet.

10. The refrigerator of claim 8, wherein,

The ultraviolet lamp is configured as an ultraviolet cold cathode tube, and the ultraviolet lamp is arranged along the length direction of the catalytic module.