CN112413970A - Storage room sterilization method and refrigerator - Google Patents

Storage room sterilization method and refrigerator Download PDF

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Publication number
CN112413970A
CN112413970A CN202011288209.4A CN202011288209A CN112413970A CN 112413970 A CN112413970 A CN 112413970A CN 202011288209 A CN202011288209 A CN 202011288209A CN 112413970 A CN112413970 A CN 112413970A
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CN
China
Prior art keywords
plasma generator
time
preset
fresh
preset value
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011288209.4A
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Chinese (zh)
Inventor
钱梅双
刘畅
罗平平
李格格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202011288209.4A priority Critical patent/CN112413970A/en
Publication of CN112413970A publication Critical patent/CN112413970A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/32Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/12Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/005Mounting of control devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04Treating air flowing to refrigeration compartments
    • F25D2317/041Treating air flowing to refrigeration compartments by purification

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention provides a storage chamber sterilization method and a refrigerator, wherein the storage chamber comprises a plasma generator, when the condition that the time length for starting the refrigerating operation of the storage chamber reaches the preset sterilization time length T' is detected, the plasma generator is started for the first time, and the time length for starting the plasma generator for the first time reaches a first preset value T1And if the storage chamber is detected to be opened in the fresh-keeping procedure, starting the plasma generator for a certain time and then pausing after the storage chamber is closed when the time for continuously opening the storage chamber is monitored to be less than the preset opening time, and continuing to execute the fresh-keeping procedure when the pause time reaches the preset valueA step of; the fresh-keeping procedure is to alternately execute pause and start the plasma generator. Compared with the prior art, the ozone storage device can ensure the storage effect of the storage chamber and control the concentration of ozone in the storage chamber within a certain range.

Description

Storage room sterilization method and refrigerator
Technical Field
The invention relates to the technical field of food refrigeration, in particular to a sterilization method for a storage chamber and a refrigerator.
Background
At present, the domestic refrigerator mainly keeps food fresh at low temperature, but the low temperature only can reduce the propagation speed of microorganisms, and the problems of food spoilage and food safety caused by microbial pollution in the storage process of the food cannot be solved. Meanwhile, researches show that harmful bacteria such as escherichia coli, staphylococcus aureus, salmonella, mould and the like can be propagated on the surface of the food along with the prolonging of the time for preserving the food, and peculiar smell substances such as trimethylamine and methyl mercaptan can be generated due to the putrefaction of fruits and vegetables in the storage process. The sterilization technology of the refrigerator in the current market mainly comprises contact sterilization modes such as antibacterial substance filtration sterilization, photocatalyst sterilization and the like, has certain limitations and cannot achieve comprehensive sterilization; and also has the problem of short sterilization use period of the antibacterial substance; and set up plasma generator in the refrigerator and produce active particle and carry out the degerming, though can effectively degerming in theory, when in actual use, the refrigerator door can often or long-time switch, the fresh-keeping effect of influence fruit vegetables that also can be very big still can produce ozone simultaneously, along with ozone concentration is too big, causes the hidden danger easily to human health.
Disclosure of Invention
The invention provides a storage room sterilization method and a refrigerator, and solves the technical problem that potential safety hazards to human health are easily caused by overlarge ozone concentration when a plasma generator is used for sterilization in the prior art.
The technical scheme adopted by the invention is as follows: a sterilization method for a storage room comprises a plasma generator, and the plasma generator is operated intermittently to perform sterilization.
Further, when the time length for starting the refrigerating operation of the storage chamber reaches the preset sterilizing time length t', the plasma generator is started for the first time.
Further, the preset sterilization time t' is less than or equal to 48 hours.
Further, the time length when the plasma generator is turned on for the first time reaches the secondA preset value T1And executing a fresh-keeping procedure, wherein the fresh-keeping procedure is to alternately execute pause and start the plasma generator, and the time length for pausing the plasma generator is a second preset time length T2The time length for turning on the plasma generator is a third preset time length T3
Further, the first preset value T1Less than or equal to 48h, and the second preset time length T2Not more than 24h, the third preset time length T3≤4h。
Further, if the storage chamber is detected to be open relative to the outside of the storage chamber in the preservation process, the time for the storage chamber to be open relative to the outside of the storage chamber is monitored, and the time length for turning on the plasma generator after the storage chamber is closed is controlled according to the length of the open time of the storage chamber.
Further, if the preservation chamber is detected to be opened in the stage of executing the fresh-keeping process, when the time T for continuously opening the preservation chamber is detected to be less than a first preset opening time T1While, turning on the plasma generator after the storage chamber is turned off, when the plasma generator is operated for a time period up to a fourth preset value T4When the plasma generator is paused, the pause time reaches a fifth preset value T5If so, continuing to execute a fresh-keeping procedure; the fourth preset value T4Greater than a third preset duration T3The fifth preset value T5Is less than a second preset time length T2
Further, if the storage room is detected to be opened in the stage of executing the fresh-keeping procedure, when the time T for continuously opening the storage room is detected to be longer than a second preset opening time T2At time, the plasma generator is turned on after the storage chamber is turned off, and when the plasma generator is operated for a time period up to a sixth preset value T6When the plasma generator is paused, the pause time reaches a seventh preset value T7If so, continuing to execute a fresh-keeping procedure; the sixth preset value T6Greater than a fourth preset value T4Said seventh preset value T7Less than a fifth predetermined value T5。
Further, the first preset opening duration t1' 60s, the second preset opening duration t2'≥60s。
A refrigerator includes a storage chamber and a controller that employs the sterilization method.
Further, the refrigerator also comprises an air duct, and the plasma generator is arranged in the air duct.
Compared with the prior art, the storage chamber comprises the plasma generator, the plasma generator is discontinuously started to operate for sterilization, the operation time of the plasma generator can be reduced while the storage effect of the storage chamber is ensured, the ozone concentration in the storage chamber is controlled within a certain range, and the problem of potential safety hazard to human health due to overlarge ozone concentration is avoided; meanwhile, the invention also has the characteristic of good energy-saving effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic control flow diagram of the sterilization method of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The application provides a refrigerator, which comprises a plasma generator, wherein the plasma generator is arranged in an air duct, and the plasma generator is electrified to generate ozone and active particles which are sent into a storage chamber (namely a refrigerating chamber) of the refrigerator together with cold air in the air duct for sterilization; wherein, for convenient control, be provided with the display screen outside the refrigerator, display screen connection director shows on the display screen and has the degerming function, and when the degerming function of user's manual selection, then the controller is opened and is carried out the degerming.
Preferably, the plasma generator comprises a positive voltage end and a negative voltage end, the positive voltage is +1.2 +/-0.6 KV, the negative voltage is-3.7 +/-0.6 KV, more active particles and ozone are generated under the voltage, and the sterilization effect in the refrigerating chamber with the volume of 100L and 300L can be kept; and the outer cover of the plasma generator is provided with a plurality of porous structures, so that ozone and active particles can be uniformly generated.
As shown in fig. 1, the sterilization method of the storage room used in the refrigerator of the present application mainly includes:
the method comprises the following steps: when the refrigerator is powered on to operate, the plasma generator is not powered on to work, and the plasma generator is started after the power-on refrigerating operation time of the refrigerator reaches the preset sterilization time t', because microorganisms such as bacteria in a storage chamber do not start to propagate in large quantity when the refrigerator starts to operate, the plasma generator does not need to be started for sterilization.
Step two: at the moment, the plasma generator is started for the first time to start degerming, so that the plasma generator operates at a first preset value T1The length of time.
Preferably, the preset sterilization time t' is less than or equal to 48 hours.
Step three: the number of bacteria in the storage chamber is controlled in a proper range at the moment, the plasma generator is controlled to start to execute a preservation process, and the preservation process is that the plasma generator is alternately paused and started, so that the number of bacteria in the storage chamber can be reasonably controlled, and the problem that the ozone concentration in the storage chamber is higher and higher due to the fact that the plasma generator is continuously started is solved.
In the fresh-keeping procedure, the plasma generator is alternately started and stopped, the sequence of the alternate starting or stopping is not required, and the plasma generator is determined based on the condition before the fresh-keeping procedure is started, and if the plasma generator is in a stopped state before the fresh-keeping procedure is started, the plasma generator is started in the fresh-keeping procedure; if the plasma generator is in the on state before the fresh-keeping procedure is started, the plasma generator is in the on stateIn the fresh-keeping procedure, the plasma generator is suspended; the pause time of the plasma generator is a second preset time T2The time length of the plasma generator is a third preset time length T3
Preferably, the first preset value T1Less than or equal to 48h, and the second preset time length T2Not more than 24h, the third preset time length T3≤4h。
In addition, the sterilization method is further optimized on the basis, in the practical use, the plasma generator is quite long in time to execute a fresh-keeping process, a plurality of storage chambers including a refrigerator are frequently accessed in the practical use, the plasma generator needs to be suspended when the storage chambers are opened and then closed, if the plasma generator continues to operate according to the previous fresh-keeping process, the storage effect on fruits and vegetables is difficult to guarantee, and at the moment, the operation time of the plasma generator needs to be properly prolonged and the suspension time needs to be shortened to quickly remove bacteria in the storage chambers.
Therefore, based on the above situation, the present application further proposes an implementation scheme of the plasma generator in the case that the storage chamber is opened and closed:
when the plasma generator detects that the storage room is opened when the plasma generator performs the fresh-keeping process, the plasma generator firstly stops working and monitors the opening time of the storage room.
When the opening time of the storeroom is monitored to be less than the first preset opening time t1Time, first preset opening duration t1' 60s, the plasma generator is turned on immediately after the storage chamber is turned off, and then when the duration of operation of the plasma generator reaches the fourth preset value T4Then the plasma generator is paused, and the pause time reaches a fifth preset value T5And if so, continuing to execute the fresh-keeping procedure.
And a fourth preset value T4Is greater than a third preset duration T3And a fifth preset value T5Is less than a second preset time length T2Thereby properly extending the plasma generation after the opening and closing of the storage roomThe operation time of the generator is prolonged, the pause time is shortened, and bacteria in the storage chamber after gas exchange is rapidly removed.
Preferably, the fourth preset value T is4Less than or equal to 24h, a fifth preset value T5≤24h。
When the opening time of the storeroom is monitored to be larger than a second preset opening time t2Time, a second preset opening duration t2' 60s, the plasma generator is turned on immediately after the storage compartment is closed, and then when the plasma generator is operated for a time period reaching a sixth preset value T6Then the plasma generator is paused, and the pause time reaches the seventh preset value T7And if so, continuing to execute the fresh-keeping procedure.
And, a sixth preset value T6Greater than a fourth preset value T4And a seventh preset value T7Less than a fifth predetermined duration T5So as to properly prolong the running time of the plasma generator after the storage chamber is opened and closed and reduce the pause time, and quickly remove the bacteria in the storage chamber after the gas exchange.
By the method, the situation that bacteria are increased after the storeroom (refrigerator) is opened can be quickly controlled, and the bacteria are refined according to the opening time of the storeroom, so that the quantity of the bacteria after the storeroom is opened and closed is further kept at a lower level, and the fresh-keeping effect of the storeroom is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A sterilization method for a storage room including a plasma generator is characterized in that the plasma generator is operated intermittently to perform sterilization.
2. The method of sterilizing a storage compartment of claim 1, wherein the plasma generator is first turned on when it is detected that a duration for starting a cooling operation of the storage compartment reaches a preset sterilizing duration t'.
3. The sterilization method of claim 2, wherein the first predetermined value T is reached when the plasma generator is first turned on1And executing a fresh-keeping procedure, wherein the fresh-keeping procedure is to alternately execute pause and start the plasma generator, and the time length for pausing the plasma generator is a second preset time length T2The time length for turning on the plasma generator is a third preset time length T3
4. Sterilization method, according to claim 3, characterized in that said first preset value T1Less than or equal to 48h, and the second preset time length T2Not more than 24h, the third preset time length T3≤4h。
5. The method of claim 3, wherein if it is detected that the storage room is open to the outside of the storage room during the refreshing process, the time period during which the storage room is open to the outside of the storage room is monitored, and the time period during which the plasma generator is turned on after the storage room is turned off is controlled according to the length of the open time of the storage room.
6. The method as claimed in claim 5, wherein if the fresh-keeping process is performed, the time T for the storage room to be continuously opened is less than a first preset opening time T1While, turning on the plasma generator after the storage chamber is turned off, when the plasma generator is operated for a time period up to a fourth preset value T4When the plasma generator is paused, the pause time reaches a fifth preset value T5If so, continuing to execute a fresh-keeping procedure; the fourth preset value T4Greater than a third preset duration T3The fifth preset value T5Is less than a second preset time length T2
7. The method as claimed in claim 5, wherein if the fresh-keeping process is performed, the time T for the storage room to be continuously opened is longer than a second predetermined opening time T2At time, the plasma generator is turned on after the storage chamber is turned off, and when the plasma generator is operated for a time period up to a sixth preset value T6When the plasma generator is paused, the pause time reaches a seventh preset value T7If so, continuing to execute a fresh-keeping procedure; the sixth preset value T6Greater than a fourth preset value T4Said seventh preset value T7Less than a fifth predetermined value T5。
8. Sterilization method, according to claim 7, characterized in that said first preset open time period t1' 60s, the second preset opening duration t2'≥60s。
9. A refrigerator comprising a storage compartment and a controller, characterized in that the controller employs the sterilization method according to any one of claims 1 to 8.
10. The refrigerator of claim 9, further comprising an air duct, wherein the plasma generator is provided in the air duct.
CN202011288209.4A 2020-11-17 2020-11-17 Storage room sterilization method and refrigerator Pending CN112413970A (en)

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Application Number Priority Date Filing Date Title
CN202011288209.4A CN112413970A (en) 2020-11-17 2020-11-17 Storage room sterilization method and refrigerator

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Publication Number Publication Date
CN112413970A true CN112413970A (en) 2021-02-26

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113499461A (en) * 2021-07-12 2021-10-15 珠海格力电器股份有限公司 Refrigerator ion sterilization method, refrigerator and computer readable storage medium
CN113654297A (en) * 2021-08-19 2021-11-16 珠海格力电器股份有限公司 Refrigerator deodorizer control method and device and refrigerator
CN113834273A (en) * 2021-08-18 2021-12-24 珠海格力电器股份有限公司 Refrigerator ion sterilization control method, electronic equipment, storage medium and refrigerator
CN114427773A (en) * 2022-01-21 2022-05-03 澳柯玛股份有限公司 Refrigerator and refrigerator air duct purification system
CN115143674A (en) * 2022-07-12 2022-10-04 珠海格力电器股份有限公司 Refrigerator odor purification control method and refrigerator
CN115823799A (en) * 2022-09-27 2023-03-21 珠海格力电器股份有限公司 Control method, ion generator and refrigerator

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CN103007317A (en) * 2012-11-26 2013-04-03 肯尼斯·乔治·史密斯 Control method and control device for plasma generator in enclosed space with door
KR20200074630A (en) * 2018-12-17 2020-06-25 엘지전자 주식회사 artificial intelligence refrigerator
CN111365939A (en) * 2020-04-26 2020-07-03 河南新飞制冷器具有限公司 Control method of sterilization refrigerator
CN111380295A (en) * 2018-12-28 2020-07-07 青岛海尔股份有限公司 Air-cooled refrigerator and sterilization method thereof

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KR20120011454A (en) * 2010-07-29 2012-02-08 엘지전자 주식회사 Refrigerator and controlling method thereof
CN103007317A (en) * 2012-11-26 2013-04-03 肯尼斯·乔治·史密斯 Control method and control device for plasma generator in enclosed space with door
KR20200074630A (en) * 2018-12-17 2020-06-25 엘지전자 주식회사 artificial intelligence refrigerator
CN111380295A (en) * 2018-12-28 2020-07-07 青岛海尔股份有限公司 Air-cooled refrigerator and sterilization method thereof
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113499461A (en) * 2021-07-12 2021-10-15 珠海格力电器股份有限公司 Refrigerator ion sterilization method, refrigerator and computer readable storage medium
CN113834273A (en) * 2021-08-18 2021-12-24 珠海格力电器股份有限公司 Refrigerator ion sterilization control method, electronic equipment, storage medium and refrigerator
CN113834273B (en) * 2021-08-18 2022-07-12 珠海格力电器股份有限公司 Refrigerator ion sterilization control method, electronic equipment, storage medium and refrigerator
CN113654297A (en) * 2021-08-19 2021-11-16 珠海格力电器股份有限公司 Refrigerator deodorizer control method and device and refrigerator
CN113654297B (en) * 2021-08-19 2022-06-14 珠海格力电器股份有限公司 Refrigerator deodorizer control method and device and refrigerator
CN114427773A (en) * 2022-01-21 2022-05-03 澳柯玛股份有限公司 Refrigerator and refrigerator air duct purification system
CN115143674A (en) * 2022-07-12 2022-10-04 珠海格力电器股份有限公司 Refrigerator odor purification control method and refrigerator
CN115143674B (en) * 2022-07-12 2023-06-09 珠海格力电器股份有限公司 Refrigerator odor removal control method and refrigerator
CN115823799A (en) * 2022-09-27 2023-03-21 珠海格力电器股份有限公司 Control method, ion generator and refrigerator

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Application publication date: 20210226

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