Refrigerator and control method thereof

Abstract

The invention discloses a refrigerator and a control method thereof. The refrigerator comprises a refrigerator body, a first sensor, an odor removing device, a camera device, a second sensor and a controller. The first sensor is configured to detect the concentration of peculiar smell gas in the storage chamber. The second sensor is configured to detect the weight value of food materials stored in the storage chamber; the controller is configured to obtain a food material image shot by the camera device in response to a food material recognition instruction, and determine the type of food materials in the storage chamber according to the food material image; wherein the food material type comprises at least one of smell-recognizable food materials or smell-unidentifiable food materials; determining a target operation mode of the odor removing device according to the food material type; wherein the target operation mode is determined according to at least one of the concentration of the peculiar smell gas in the current storage chamber or the weight value of the food materials.

Description

Refrigerator and control method thereof

[0001] This application claims priority to Chinese patent application No. 202310559472.X filed on May 17, 2023, priority to Chinese patent application No. 202311686858.3 filed on December 8, 2023, and priority to Chinese patent application No. 202311345228.X filed on October 17, 2023, all of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of household appliances, and in particular to a refrigerator and a control method thereof. Background Art

[0003] As living standards improve, refrigerators are storing a growing variety of food. Food stored in refrigerators can emit a variety of odors, creating a peculiar smell within the refrigerator. With the advancement of gas sensor technology, some refrigerators are now equipped with gas sensors and odor removal devices. These sensors monitor odors within the refrigerator and remove them using odor removal devices such as ozone generators or ionizers, achieving the desired odor removal effect.

[0004] Summary of the Invention

[0005] On the one hand, a refrigerator is provided, comprising a housing, a door, a first sensor, a deodorizing device, a camera, a second sensor, and a controller. The housing comprises a storage chamber. The door is configured to open or close the storage chamber. The first sensor is disposed in the storage chamber and is configured to detect the concentration of odorous gases in the storage chamber, and a database corresponding to food types is pre-established in the first sensor. The deodorizing device is disposed in the storage chamber and is configured to purify odorous gases in the storage chamber. The camera is disposed in the storage chamber and is configured to capture images of food stored in the storage chamber. The second sensor is disposed at the bottom of the storage chamber and is configured to detect the weight of food stored in the storage chamber. The controller is configured to: in response to a food identification instruction, obtain the food image captured by the camera device, and determine the type of food in the storage chamber based on the food image; wherein the food type includes at least one of odor-recognizable food or odor-unrecognizable food; determine the target operating mode of the odor purification device based on the food type; wherein the target operating mode is determined based on at least one of the odor gas concentration or the food weight value in the current storage chamber.

[0006] In another aspect, a refrigerator is provided, comprising a cabinet, a door, a refrigeration system, a first sensor, a gas detection component, a gas regulating device, and a controller. The cabinet includes a storage compartment. The door is configured to open or close the storage compartment. The refrigeration system is disposed within the cabinet and is configured to provide cooling to the storage compartment by controlling a refrigerant. The first sensor is disposed within the storage compartment and is configured to detect the concentration of odorous gases within the storage compartment. The gas detection component is disposed within the storage compartment and is configured to obtain gas parameters of gas flowing through a surface of the first sensor, the gas parameters including at least one of gas temperature, gas humidity, or gas flow rate. The gas regulating device is disposed within the storage compartment and proximate to the first sensor. The gas regulating device is configured to adjust the gas parameters of gas flowing through the surface of the first sensor. The controller is configured to, when the door is closed, control the operating state of the gas regulating device based on the gas parameters and the on / off state of the refrigeration system, and to obtain the concentration of odorous gases within the storage compartment via the first sensor.

[0007] On the other hand, a method for controlling a refrigerator is provided, wherein the refrigerator includes a cabinet, a door, a first sensor, a deodorizing device, a camera, and a second sensor. The cabinet includes a storage chamber. The door is configured to open or close the storage chamber. The first sensor is disposed in the storage chamber and is configured to detect the concentration of odorous gases in the storage chamber, and a database corresponding to the types of food ingredients is pre-established in the first sensor. The deodorizing device is disposed in the storage chamber and is configured to purify the odorous gases in the storage chamber. The camera is disposed in the storage chamber and is configured to capture images of the food ingredients stored in the storage chamber. The second sensor is disposed at the bottom of the storage chamber and is configured to detect the weight of the food ingredients stored in the storage chamber. The method includes: in response to a food identification instruction, obtaining food images captured by the camera device, and determining the type of food in the storage room based on the food images; wherein the food types include odor-identifiable food and odor-unidentifiable food; if it is determined that the food types in the storage room are all odor-identifiable food, obtaining the odor gas concentration of the current storage room detected by the first sensor; determining the target operating mode corresponding to the odor purification device based on the odor gas concentration, so as to control the operation of the odor purification device according to the target operating mode; if it is determined that the food types in the storage room are all odor-unidentifiable food, obtaining the first weight of all food in the storage room currently detected by the second sensor of the weight sensor; obtaining the target operating mode corresponding to the odor purification device based on the first weight; if it is determined that the food types in the storage room include odor-identifiable food and odor-unidentifiable food, obtaining the second weight of all odor-unidentifiable food in the storage room currently detected by the second sensor, and the odor gas concentration of the current storage room detected by the first sensor; determining the target operating mode corresponding to the odor purification device based on the second weight and the odor gas concentration.

[0008] On the other hand, a method for controlling a refrigerator is provided, wherein the refrigerator includes a cabinet, a door, a refrigeration system, a first sensor, a gas detection component, and a gas regulating device. The cabinet includes a storage chamber. The door is configured to open or close the storage chamber. The refrigeration system is disposed in the cabinet and is configured to provide cooling to the storage chamber by controlling a refrigerant. The first sensor is disposed in the storage chamber and is configured to detect the concentration of odorous gas in the storage chamber. The gas detection component is disposed in the storage chamber and is configured to obtain gas parameters of the gas flowing through the surface of the first sensor, the gas parameters including at least one of gas temperature, gas humidity, or gas flow rate. The gas regulating device is disposed in the storage chamber and is disposed near the first sensor. The gas regulating device is configured to regulate the gas parameters of the gas flowing through the surface of the first sensor. The method includes: when the door body is in a closed state, controlling the operating state of the gas regulating device according to the gas parameters and the opening and closing state of the refrigeration system; and obtaining the concentration of odorous gas in the storage room through the first sensor; if it is determined that the door body is open, controlling the gas regulating device to stop operating. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG1 is an external structural diagram of a refrigerator with its door closed according to some embodiments;

[0010] FIG2 is a structural diagram of a storage compartment of a refrigerator with its door open according to some embodiments;

[0011] FIG3 is a schematic diagram of an air duct of a storage compartment of a refrigerator according to some embodiments;

[0012] FIG4 is a structural diagram of a refrigeration system of a refrigerator according to some embodiments;

[0013] FIG5 is a block diagram of a controller of a refrigerator according to some embodiments;

[0014] FIG6 is a flow chart of a method for controlling a refrigerator according to some embodiments;

[0015] FIG7 is a flowchart of another method for controlling a refrigerator according to some embodiments;

[0016] FIG8 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0017] FIG9 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0018] FIG10 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0019] FIG11 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0020] FIG12 is a structural diagram of another refrigerator according to some embodiments;

[0021] FIG13 is a diagram illustrating an installation position of a first sensor and a gas regulating device according to some embodiments;

[0022] 14 is a diagram illustrating another installation position of a first sensor and a gas regulating device according to some embodiments;

[0023] FIG15 is a block diagram of a mounting assembly according to some embodiments;

[0024] FIG16 is a structural diagram of a gas regulating device according to some embodiments;

[0025] FIG17 is another structural diagram of a gas regulating device according to some embodiments;

[0026] FIG18 is an exploded view of the gas regulating device in FIG17;

[0027] FIG19 is a diagram illustrating the internal structure of a gas regulating device according to some embodiments;

[0028] FIG20 is a structural diagram of a moisture absorber in a gas conditioning device according to some embodiments;

[0029] FIG21 is a diagram illustrating an installation position of a second blower and a gas detection component according to some embodiments;

[0030] FIG22 is a diagram illustrating another installation position of a second blower and a gas detection component according to some embodiments;

[0031] FIG23 is a block diagram of another refrigerator controller according to some embodiments;

[0032] FIG24 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0033] FIG25 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0034] FIG26 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0035] FIG27 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0036] FIG28 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0037] FIG29 is a flowchart of yet another method for controlling a refrigerator according to some embodiments;

[0038] FIG30 is a flowchart of yet another method for controlling a refrigerator according to some embodiments; and

[0039] FIG31 is a flowchart of yet another method for controlling a refrigerator according to some embodiments. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings to clearly and completely describe some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0041] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0042] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0043] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0044] “At least one of A, B and C” has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B and C.

[0045] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0046] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0047] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0048] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0049] 1 and 2 , some embodiments of the present disclosure provide a refrigerator, wherein the refrigerator 1000 includes a housing 10 defining a storage space. The housing 10 includes at least one storage chamber 100 configured to store food and the like. The storage chamber 100 may be divided into a refrigerating chamber 110, a freezing chamber 120, a temperature-changing chamber, a vacuum chamber, and the like, depending on its purpose. For example, the housing 10 includes three storage chambers 100: the upper storage chamber 100 is a refrigerating chamber 110, the lower storage chamber 100 is a freezing chamber 120, and the middle storage chamber 100 is a temperature-changing chamber.

[0050] In some embodiments, at least one component storage cavity is further provided in the box body 10, such as a press cabin.

[0051] In some embodiments, the box body 10 may include a box shell and a box liner disposed in the box shell.

[0052] In some embodiments, the liner includes a refrigerated liner, wherein the refrigerated liner is configured to form the refrigerated compartment 110 .

[0053] In some embodiments, the cabinet may further include a freezer cabinet configured to form a freezer compartment 120 .

[0054] In some embodiments, the chamber may further include a variable temperature chamber configured to form a variable temperature chamber.

[0055] In some embodiments, an insulation layer, such as a foam layer, is formed between the box shell and the box liner to improve the insulation effect of the refrigerator 1000.

[0056] In some embodiments, the refrigerator 1000 further includes a door 20 configured to open and close the storage chambers 100. For example, a receiving opening for taking items in and out is formed on one side of each storage chamber 100, and the door 20 is rotatably mounted on the side of the box body 10 to open or close the receiving opening.

[0057] In some embodiments, one or more doors 20 are provided at the opening of each storage chamber 100. For example, two doors 20 are provided at the opening of the refrigerating chamber 110.

[0058] In some embodiments, the door 20 includes a door outer shell 210 and a door inner shell 220, which are arranged opposite to each other. The door outer shell 210 is located outside the box 10, and the door inner shell 220 is located inside the box 10.

[0059] In some embodiments, the door body 20 further includes an upper end cover 230 and a lower end cover 240 , and the upper end cover 230 is disposed opposite to the lower end cover 240 .

[0060] In some embodiments, the door body 20 further includes an insulation layer, which is located between the door body outer shell 210, the door body inner shell 220, the upper end cover 230, and the lower end cover 240. The insulation layer can be filled with foam.

[0061] In some embodiments, the door body 20 can be pivotally disposed at the opening of the storage chamber 100, and can also be connected to a drawer box in the storage chamber 100 to achieve pull-out opening and closing.

[0062] In some embodiments, the refrigerator 1000 further includes a refrigeration system 200 , which is installed in the housing 10 and configured to cool the storage chamber 100 by controlling a refrigerant.

[0063] 4 , a refrigeration system 200 includes a compressor 1 configured to compress a refrigerant.

[0064] In some embodiments, the refrigeration system 200 further includes a condenser 4 , and the outlet of the compressor 1 is connected to the inlet of the condenser 4 .

[0065] In some embodiments, the refrigeration system 200 further includes a pressure reducer 3 , and an outlet of the condenser 4 is connected to the pressure reducer 3 .

[0066] In some embodiments, refrigeration system 200 further includes an evaporator 2, the inlet of evaporator 2 being connected to pressure reducer 3, and the outlet of evaporator 2 being connected to the inlet of compressor 1. Evaporator 2 can be installed in an evaporation chamber between the casing and the liner. Evaporator 2 is configured to evaporate the refrigerant to absorb heat from the ambient air.

[0067] The working process of the refrigeration system 200 includes a compression process, a condensation process, a throttling process and an evaporation process.

[0068] For example, the compression process is as follows: the compressor 1 starts working, low-temperature, low-pressure refrigerant is sucked into the compressor 1, compressed into high-temperature, high-pressure superheated gas in the cylinder of the compressor 1, and then discharged into the condenser 4.

[0069] The condensation process involves the high-temperature, high-pressure refrigerant gas dissipating heat through the condenser 4, gradually cooling to a saturated vapor at room temperature and high pressure. It then cools further to a saturated liquid, where the temperature stops falling. This temperature is called the condensation temperature. The refrigerant pressure remains virtually unchanged throughout the condensation process.

[0070] The throttling process is as follows: the condensed refrigerant saturated liquid is filtered through a drying filter to remove moisture and impurities, and then flows into the pressure reducer 3. After throttling and pressure reduction in the pressure reducer 3, it becomes wet steam at room temperature and low pressure.

[0071] The evaporation process is as follows: the wet steam at room temperature and low pressure begins to absorb heat and vaporize in the evaporator 2, which not only reduces the temperature of the evaporator 2 and the gas around the evaporator 2, but also turns the refrigerant into a low-temperature and low-pressure gas.

[0072] The refrigerant coming out of the evaporator 2 passes through the gas-liquid separator and then returns to the compressor 1. By repeating the above working process, the heat in the refrigerator 1000 can be transferred to the air outside the box to reduce the temperature in the storage chamber 100.

[0073] Afterwards, if the temperature of the storage chamber 100 is within the preset temperature range, the refrigeration system 200 is turned off. Over time, the temperature of the storage chamber 100 rises. If the temperature of the storage chamber 100 rises outside the preset temperature range, the refrigeration system 200 is turned on again, and the above process repeats. This ensures that the temperature inside the storage chamber 100 fluctuates within the preset temperature range.

[0074] In some embodiments, each storage compartment 100 corresponds to a corresponding refrigeration duct. Referring to Figures 2 and 3 , taking the refrigeration compartment 110 as an example, the refrigerator 1000 further includes a refrigeration duct 130. The refrigeration duct 130 is disposed between the refrigerator liner and the refrigerator shell. The refrigeration duct 130 connects the evaporator compartment (where the evaporator 2 is located) with the refrigeration compartment 110 and is configured to provide cold air to the refrigeration compartment 110.

[0075] 3 , the refrigeration duct 130 includes a first air outlet 132 , which connects the refrigeration duct 130 and the refrigeration chamber 110 . Cold air generated during the refrigerant circulation process is discharged into the refrigeration chamber 110 through the first air outlet 132 .

[0076] The refrigeration duct 130 further includes a first air inlet 133, which connects the refrigeration chamber 110 and the refrigeration duct 130. The first air inlet 133 is configured to introduce air from the storage chamber 100 into the evaporator 2 to cool the air. For example, the first air inlet 133 is located at the bottom of the storage chamber 100.

[0077] 3 and 12 , the refrigeration air duct 130 includes a refrigeration air cavity and an air duct cover 131 . The air duct cover 131 forms a rear wall of the refrigeration chamber 110 .

[0078] In some embodiments, the refrigerator 1000 also includes a first fan 105, which is disposed in the refrigeration duct 130 and is configured to allow gas to circulate in the refrigeration duct 130 and the refrigeration chamber 110, thereby allowing the gas in the refrigeration chamber 110 to be cooled through the evaporator 2.

[0079] It is understood that if the speed of the first fan 105 is increased, the airflow speed is accelerated, the heat exchange efficiency between the condenser 4 and the evaporator 2 is improved, and the temperature in the refrigerating chamber 110 is reduced. If the speed of the first fan 105 is reduced, the airflow speed is reduced, the heat exchange efficiency between the condenser 4 and the evaporator 2 is reduced, and the temperature in the refrigerating chamber 110 is increased.

[0080] 1 and 2 , the refrigerator 1000 further includes a display screen 5, which is disposed on a side of the door 20 away from the storage chamber 100. The display screen 5 is configured to display prompt information and receive a user's touch operation.

[0081] Refrigerators are common household appliances that store a wide variety of foods. These foods emit a variety of odors, which can lead to unpleasant odors inside the refrigerator. This has led to the development of refrigerators with odor removal features. These features utilize gas sensors to monitor odors within the refrigerator. When the concentration of odorous gases exceeds a set threshold, the odor removal device automatically activates to remove the odor.

[0082] However, due to the complex composition of odors emitted by food and the limitations of the development of gas sensor technology, the types of odorous gases that can be identified by gas sensors are insufficient. Therefore, when an odor that cannot be identified by the gas sensor is generated in the refrigerator, the refrigerator may not be able to control the operation of the odor removal device in time, thereby reducing the odor removal effect of the refrigerator.

[0083] In the related art, the odor removal device in some refrigerators is turned on and off regularly to purify the odor inside the refrigerator. However, if an odor is generated in the refrigerator during the non-open period, the odor cannot be removed in time, and the noise odor removal effect is poor.

[0084] Therefore, some embodiments of the present disclosure provide a refrigerator 1000. A camera device and a weight sensor are provided in the refrigerator 1000. The refrigerator 1000 obtains an image of food through the camera device and determines the type of food based on the image of the food. The food type includes food with identifiable odor and food with unidentifiable odor. If all the food in the refrigerator 1000 is food with identifiable odor, the operation mode of the odor purification device is determined based on the concentration of the odor gas detected by the gas sensor. If all the food in the refrigerator 1000 is food with unidentifiable odor, the operation mode of the odor purification device is determined based on the weight of the food detected by the weight sensor. If the food in the refrigerator 1000 includes food with identifiable odor and food with unidentifiable odor, the weight of the food with unidentifiable odor and the concentration of the odor gas currently detected by the first sensor 300 are obtained, and the operation mode of the odor purification device is determined based on the two factors of the food weight and the odor gas concentration. This improves the odor purification effect of the refrigerator 1000.

[0085] In some embodiments of the present disclosure, referring to Figures 3 and 5 , the refrigerator 1000 further includes a first sensor 300, which is disposed within the storage compartment 100, such as the refrigeration compartment 110. The first sensor 300 is configured to detect the concentration of odorous gases within the storage compartment 100. For example, the first sensor 300 is a gas sensor. A gas sensor is a device that converts information such as the composition and concentration of a gas into information that can be used by personnel, instruments, computers, and the like.

[0086] In some embodiments of the present disclosure, the first sensor 300 is disposed in the refrigerating chamber 110 as an example to describe the odor removal process of the refrigerator 1000. It should be noted that the first sensor 300 can be disposed in the freezing chamber 120 or the temperature-changing chamber within the housing 10, and the present disclosure does not limit this.

[0087] In some embodiments of the present disclosure, the first sensor 300 is disposed at the first air inlet 133 of the refrigeration air duct 130 to detect the concentration of odorous gas flowing through the first air inlet 133 .

[0088] It should be noted that the first sensor 300 needs to detect the overall odor inside the refrigerator 1000, rather than the odor of a specific area. Since the storage locations of food in the refrigerator 1000 are diverse, the installation location of the first sensor 300 needs to be determined before installing it.

[0089] In some embodiments of the present disclosure, by performing fluid simulation on the refrigerator 1000, it can be found that the gas flow rate is the largest at the first air inlet 133, and the first air inlet 133 gathers the airflows from various positions inside the refrigerator 1000. Therefore, the first sensor 300 is installed near the first air inlet 133, and the overall odor gas concentration in the refrigerator 1000 can be accurately measured.

[0090] Refrigerator 1000 also includes an odor removal device 12, which is located within storage compartment 100. Odor removal device 12 is configured to generate ozone to remove odorous gases within storage compartment 100. For example, odor removal device 12 is an ozone generator or an ionizer. An ozone generator generates ozone to remove odor molecules. An ionizer generates negative and positive ions through the action of electrical charges to purify gases.

[0091] In some embodiments, the refrigerator 1000 further includes a controller 310. The controller 310 may be a chip or a processor. For example, the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application-specific integrated circuit (ASIC). Alternatively, the controller 310 may be a programmable device, including a complex programmable logic device (CPLD), an erasable programmable logic device (EPLD), or a field programmable gate array (FPGA). The chip may be an integrated circuit (IC).

[0092] 5 , in some embodiments, the controller 310 is coupled to the first sensor 300. The controller 310 is configured to receive detection data sent by the first sensor 300 and control activation and deactivation of the first sensor 300.

[0093] In some embodiments, the controller 310 is further coupled to the deodorizing device 12. The controller 310 is configured to control the deodorizing device 12 to start and deodorize the storage chamber 100 (eg, the refrigerator 110) when the concentration of the odorous gas detected by the first sensor 300 exceeds a set value.

[0094] 5 and 12 , in some embodiments, the controller 310 can be installed on the side of the air duct cover 131 facing away from the refrigeration chamber 110 , so as to facilitate coupling with the first sensor 300 and the deodorization device 12 , thereby facilitating receiving the odorous gas concentration detected by the first sensor 300 and controlling the working status of the deodorization device 12 .

[0095] In some embodiments of the present disclosure, the refrigerator 1000 further includes a camera device 601 , which is disposed in the storage chamber 100 and configured to capture images of food stored in the storage chamber 100 .

[0096] In some embodiments of the present disclosure, the refrigerator 1000 further includes a second sensor 602, which may be disposed at the bottom of the storage chamber 100 and configured to detect the weight of food stored in the storage chamber 100. For example, the second sensor 602 is a weight sensor.

[0097] In some embodiments, the controller 310 is further configured to, in response to the food identification instruction, obtain food images captured by the camera 601 and identify the food images. The food types include odor-identifiable food and unidentifiable food. If it is determined that all food in the storage chamber 100 is odor-identifiable food, the controller 310 obtains the current odor gas concentration in the storage chamber 100 detected by the first sensor 300. Based on the odor gas concentration, the controller 310 obtains the corresponding target operating mode of the odor purification device, and controls the operation of the odor purification device according to the target operating mode.

[0098] It should be noted that since the first sensor 300 cannot detect the odor of all ingredients, before installing the first sensor 300 in the housing 10, the first sensor 300 can be tested with the odors of different ingredients to establish a database of odor-identifiable ingredients and odor-unidentifiable ingredients, and this database can be imported into the system of the refrigerator 1000. The odor-identifiable ingredients are those whose odors can be detected by the first sensor 300, while the remaining ingredients whose odors cannot be detected are odor-unidentifiable ingredients.

[0099] It should be noted that the food identification instruction can be triggered by the user himself or automatically by the refrigerator 1000. When the user triggers the food identification instruction himself, the user can use the display screen of the refrigerator 1000 or the mobile terminal bound to the refrigerator 1000 to interact with the refrigerator 1000 through signals to control the refrigerator 1000 to perform food identification operations. When the refrigerator 1000 automatically triggers the food identification instruction, if the refrigerator 1000 determines that the door body 20 is opened and then closed, the food identification instruction is triggered at the closing moment. It is understandable that since the user may have stored new food in the refrigerator 1000 after the door body 20 is opened and closed, the refrigerator 1000 can determine whether it is necessary to change the operating mode of the deodorizing device 12.

[0100] After receiving the food identification instruction, the controller 310 controls the camera device 601 to start working, obtains the food image captured by the camera device 601, and identifies the food image to determine the name of the food currently stored in the storage room 100, and then determines the food type.

[0101] It should be noted that the controller 310 can identify the ingredient type through image recognition operations, and the controller 310 can pre-train a training set labeled with several ingredient features using neural network technology to obtain an ingredient recognition model. The process of controller 310 obtaining the ingredient recognition model through training and performing image recognition operations to obtain the ingredient name can be referenced in related art and will not be further described in this disclosure.

[0102] After obtaining the food type, if the food types in the storage chamber 100 are all identifiable by odor, it means that the odors emitted by the food currently stored in the storage chamber 100 are all detectable by the first sensor 300. At this time, the current odor gas concentration in the storage chamber 100 is obtained, and the odor purification device 12 is controlled based on the detected odor gas concentration.

[0103] In some embodiments, the controller 310 is further configured to: search for a corresponding target odor level in at least one preset odor level according to the odor gas concentration, and obtain a target operating mode of the odor purification device 12 according to the target odor level.

[0104] It should be noted that each of the odor levels corresponds to a first operating mode of the odor purification device 12 .

[0105] In some embodiments, the at least one odor level includes at least two odor levels, and the odor level is positively correlated with the concentration of the odorous gas. For example, the odor level is divided into a low odor level and a high odor level as the concentration increases. A low odor level indicates essentially no odor, and the odor removal device 12 does not need to be activated. A high odor level indicates a noticeable odor, and the odor removal device 12 needs to be activated for odor removal.

[0106] In some embodiments of the present disclosure, by detecting the response degree of the first sensor 300 to the odor of different food ingredients and the human body's perception of odors of different concentrations, the odor is divided into three different odor levels according to the output signal of the first sensor 300.

[0107] For example, when the output signal of the first sensor 300 is between 1 and X1, the odor level is low, represented by odor level A. In this case, the corresponding operating mode of the odor purification device 12 is operating mode D. When the output signal of the first sensor 300 is between 1 and X1, the odor level is medium, represented by odor level B. In this case, the corresponding operating mode of the odor purification device 12 is operating mode E. When the output signal of the first sensor 300 is between 1 and X1, the odor level is high, represented by odor level C. In this case, the corresponding operating mode of the odor purification device 12 is operating mode F. Level A indicates essentially no odor, Level B indicates a slight odor, and Level C indicates a noticeable odor.

[0108] It should be noted that X1, X2 and X3 are the values ​​of the electrical signals output by the first sensor 300, such as the voltage value of a voltage signal or the current value of a current signal.

[0109] In some embodiments, the primary mechanism by which the first sensor 300 detects odorous gas concentration is that the gas-sensitive material undergoes an oxidation-reduction reaction with odor molecules, causing a change in resistance across the first sensor 300. This change in resistance then causes a change in voltage. Therefore, measuring this change in voltage can reflect the concentration of odorous molecules in the gas. Consequently, the controller 310 can be configured to activate the odor purification device 12 to perform odor purification when the voltage of the first sensor 300 is greater than or equal to a preset voltage threshold. If the voltage of the first sensor 300 is less than the preset voltage threshold, the controller 310 deactivates the odor purification device 12, effectively controlling its activation and deactivation.

[0110] In some embodiments, after determining the odor level based on the odorous gas concentration detected by the first sensor 300, the controller 310 controls the odor purification device 12 to operate according to the operating mode described in Table 1. The parameters of the operating mode include the operating rule, the number of cycles within the operating rule, and the idle time. The operating rule includes the duration of the odor purification device 12's on-time and off-time within an operating cycle. After completing a cycle, the odor purification device 12 enters an idle state. After the idle state lasts for a predetermined idle time, the odor purification device 12 enters the next operating cycle.

[0111] For example, a running cycle is 60 seconds, and the preset idle time is 30 seconds.

[0112] It is understood that when the odor-removing device 12 is an ion generator, the ion generator is prone to producing ozone. Although ozone has a good odor-removing effect, it is harmful to the human body. Therefore, it is necessary to control the start and stop of the ion generator according to the operating rules to avoid excessive ozone generation due to continuous operation of the ion generator.

[0113] It should be noted that the number of cycles in the operating rule is positively correlated with the odor level, while the idle time is negatively correlated with the odor level. Within an operating cycle, the duration the odor purification device 12 is on is positively correlated with the odor level. The duration the odor purification device 12 is off is negatively correlated with the odor level. That is, as the odor level increases, the duration the odor purification device 12 is on increases, while the duration it is off decreases.

[0114] Referring to Table 1, t1 < t2 < t3, T1 < T2 < T3, and K3 < K2 < K1. If controller 310 determines that the odor level is A, it controls odor removal device 12 to operate according to the operating rules of operating mode D. After the number of cycles of the operating rules reaches T1, it enters idle mode. If controller 310 determines that the odor level is B or C, it controls odor removal device 12 to operate in operating mode E or operating mode F.

[0115] It should be noted that operating modes D through F share the same cycle count. If the odor level is switched, as long as the accumulated cycle count is greater than or equal to the cycle requirement in the operating mode corresponding to the odor level being switched, the system immediately enters the idle state corresponding to the odor level being switched, and the accumulated total cycle count is reset to zero. This prevents the odor purification device 12 from continuously operating and producing excessive ozone.

[0116] It should be noted that the values ​​of the operating time, power-on time, shutdown time and idle time in Table 1 can be preset by empirical values ​​and are not limited here.

[0117] Table 1 Operation mode of the deodorization device at different odor levels

[0118] In some embodiments, the controller 310 is further configured to: if it is determined that all the food in the storage chamber 100 are food with unrecognizable odors, obtain a first weight of all the food in the storage chamber 100 as detected by the second sensor 602. Based on the first weight, the controller 310 obtains a target operating mode for the odor purification device 12, and controls the operation of the odor purification device 12 according to the target operating mode.

[0119] In some embodiments, the controller 310 is further configured to: search for a corresponding target weight level in at least one preset weight level according to the first weight, and obtain a target operating mode of the deodorizing device 12 according to the target weight level.

[0120] Each weight level corresponds to a second operating mode of the odor removal device 12. The weight levels include W1, W2, W3, and W4. For example, the weight ranges corresponding to W1, W2, W3, and W4 are [0, H1), [H1, H2), [H2, H3), and [H3, H4], respectively. H1, H2, H3, and H4 are preset weight thresholds configured to divide the weight levels.

[0121] For example, the first weight is M1. If the first weight satisfies: M1

[0122] ​Table 2 Operation mode of odor removal device at different weight levels

[0123] If the food stored in refrigerator 1000 is all food whose odor cannot be detected by first sensor 300, the first sensor 300 cannot accurately detect the odor. Therefore, it is possible that the refrigerator 1000 may have an odor, but the odor purification device may not function. Therefore, in some embodiments of the present disclosure, controller 310 controls odor purification device 12 by obtaining the weight of the food. The greater the weight of the food, the more noticeable the odor in refrigerator 1000 may be. This increases the operating time of odor purification device 12, thereby improving the effectiveness of refrigerator 1000 in purifying food odors.

[0124] In some embodiments, the controller 310 is further configured to: if it is determined that the types of food in the storage chamber 100 include food with identifiable odors and food with unidentifiable odors, obtain a second weight of all food with unidentifiable odors in the storage chamber 100 as detected by the second sensor 602. Based on the second weight, search for a corresponding target weight level in at least one preset weight level, and obtain target operating logic for the odor purification device 12 based on the target weight level.

[0125] At this time, each weight level corresponds to an operating logic of the odor purification device 12, and each operating logic includes at least one operating mode corresponding to a different odor level.

[0126] Obtain the odor gas concentration of the current storage chamber 100 detected by the first sensor 300, determine the corresponding odor level according to the odor gas concentration, and obtain the corresponding target operation mode in the target operation logic according to the odor level to control the operation of the deodorization device 12 according to the target operation mode.

[0127] If the food in storage chamber 100 includes both ingredients with recognizable odors and ingredients with unrecognizable odors, the second weight detected by weight sensor 300 and the odorous gas concentration detected by first sensor 300 can be used together as factors to control the operation of odor removal device 12. In this case, controller 310 first determines a target weight level corresponding to the second weight based on the second weight, then determines a corresponding target control logic based on the target weight level. Then, based on the odorous gas concentration, the controller 310 determines a corresponding target operating mode within the target control logic. For example, if the second weight is M2, the following four scenarios may occur.

[0128] As shown in Table 3, when the second weight satisfies: 0<M2

[0129] ​Table 3 Operation logic of the deodorization device when 0<M2

[0130] As shown in Table 4, when the second weight satisfies: H1≤M2<H2, the corresponding operating modes of the deodorizing device 12 at different odor levels are as follows.

[0131] Table 4 Operation modes of the deodorization device when H1≤M2<H2

[0132] As shown in Table 5, when the second weight satisfies: H2≤M2<H3, the corresponding operating modes of the deodorizing device 12 at different odor levels are as follows.

[0133] Table 5 Operation modes of the deodorization device when H2≤M2<H3

[0134] As shown in Table 6, when the second weight satisfies: H3≤M2≤H4, the corresponding operating modes of the deodorizing device 12 at different odor levels are as follows.

[0135] Table 6 Operation modes corresponding to the odor removal device when H3≤M2≤H4

[0136] In some embodiments of the present disclosure, if the food stored in refrigerator 1000 includes both food whose odor cannot be detected by first sensor 300 and food whose odor can be detected, the odor concentration detected by first sensor 300 may be inaccurate. Because unidentifiable food is present in refrigerator 1000, to avoid the situation where odor removal device 12 fails to fully purify odorous gases due to the generation of odors within refrigerator 1000, controller 310 determines the operating mode of odor removal device 12 based on both food weight and odorous gas concentration to fully purify the food odors.

[0137] Some embodiments of the present disclosure further provide a method for controlling a refrigerator 1000, the method being used to purify odors in a storage chamber 100. Referring to Fig. 6 , the method includes steps S1 to S2.

[0138] S1, in response to a food identification instruction, obtain food images captured by the camera device 601, and determine the type of food in the storage chamber 100 according to the food images. The food type includes at least one of odor-identifiable food and odor-unidentifiable food.

[0139] S2, determining a target operating mode of the deodorizing device 12 according to the food type, wherein the target operating mode is determined according to at least one of the current odorous gas concentration in the storage chamber 100 or the food weight value. ​

[0140] In some embodiments, referring to FIG. 7 , the method includes S11 to S20 .

[0141] S11, determine whether the food identification instruction is received. If yes, execute S12, if not, continue to execute S11.

[0142] S12, in response to the food identification instruction, obtaining the food image captured by the camera device 601 and identifying the food image.

[0143] S13: Determine whether all the food in the storage chamber 100 are food that can be identified by smell. If so, execute S14; if not, execute S20.

[0144] S14, obtaining the current odor gas concentration in the storage room 100.

[0145] S15, obtaining a target operating mode corresponding to the odor purification device 12 according to the odor gas concentration, and controlling the operation of the odor purification device 12 according to the target operating mode.

[0146] S20, the rest of the control logic.

[0147] In some embodiments, referring to FIG. 8 , the S15 includes S151 to S153 .

[0148] S151 , searching for a corresponding target odor level in at least one preset odor level according to the odor gas concentration.

[0149] S152: Obtain a target operating mode of the odor purification device 12 according to the target odor level.

[0150] S153, controlling the operation of the deodorizing device 12 according to the target operation mode.

[0151] In some embodiments, referring to FIG. 9 , the S153 includes S1531 to S1534 .

[0152] S1531: Determine whether the operation time of the deodorizing device 12 is greater than or equal to one operation cycle. If so, execute S1532; if not, continue to execute S1531.

[0153] S1532, control the deodorizing device 12 to stop and enter the idle state.

[0154] S1533: Determine whether the duration of the odor removal device 12 entering the idle state is greater than or equal to the preset idle time. If so, execute S1534; if not, execute S1532.

[0155] S1534, control the deodorizing device 12 to enter the next operation cycle.

[0156] In some embodiments, referring to FIG. 10 , the S20 includes S21 to S24 .

[0157] S21, obtaining a first weight of all food materials currently in the storage chamber 100 detected by the second sensor 602.

[0158] S22: Searching for a corresponding target weight level in at least one preset weight level according to the first weight.

[0159] S23, obtaining a target operating mode of the odor removal device 12 according to the target weight level.

[0160] S24, controlling the operation of the deodorizing device 12 according to the target operation mode.

[0161] In some embodiments, referring to FIG. 11 , the S20 includes S31 to S34 .

[0162] S31, obtaining the second weight of all the food materials with unrecognizable odor in the current storage chamber 100 detected by the second sensor 620.

[0163] S32: searching for a corresponding target weight level in at least one preset weight level according to the second weight, and obtaining a target operation logic of the deodorizing device 12 according to the target weight level.

[0164] S33, obtaining the current odor gas concentration of the storage chamber 100 detected by the first sensor 300, and determining the corresponding odor level according to the odor gas concentration.

[0165] S34, obtaining a corresponding target operation mode in the target operation logic according to the odor level, so as to control the operation of the deodorizing device 12 according to the target operation mode.

[0166] It should be noted that the working process of the control method of the refrigerator 1000 provided in some embodiments of the present disclosure can refer to the working process of the controller 310 in the refrigerator 1000 described in the above embodiments, and will not be repeated here.

[0167] In summary, the refrigerator 1000 and the control method of the refrigerator 1000 provided in some embodiments of the present disclosure divide the types of food into odor-identifiable food and odor-unidentifiable food. In the case that the types of food are all odor-identifiable food, the controller 310 determines the target operating mode of the odor purification device 12 according to the odor levels corresponding to different odor gas concentrations. In the case that the types of food are all odor-unidentifiable food, the controller 310 determines the target operating mode of the odor purification device 12 according to the weight level corresponding to the first weight of the food in the current storage chamber 100. In the case that the types of food include odor-identifiable food and odor-unidentifiable food, the controller 310 determines the target operating mode of the odor purification device 12 according to two factors: the weight level corresponding to the second weight of the food in the current storage chamber 100 and the odor level corresponding to the current odor gas concentration.

[0168] In this way, the impact of the technical development defects of the gas sensor is reduced, and the refrigerator 1000 can adopt a targeted odor purification method to purify the odor gas according to the concentration of the odor gas and the weight of the food in the storage chamber 100, thereby improving the odor purification effect of the refrigerator 1000.

[0169] It's understood that the primary method by which the first sensor 300 detects odors within the refrigerator 1000 is that airflow drives odor molecules across the surface of the first sensor 300, where they are adsorbed or captured by the sensitive material of the first sensor 300, thereby enabling odor detection. Therefore, the parameters of the airflow across the surface of the first sensor 300 will affect the accuracy of the odorous gas concentration detected by the first sensor 300. The activation and deactivation of the odor removal device 12 depends on the accuracy of the first sensor 300. If the accuracy of the first sensor 300 is low, the odor removal performance of the refrigerator 1000 will be severely impacted.

[0170] On the one hand, through research on the characteristics of the first sensor 300, researchers discovered that the airflow velocity flowing over the surface of the first sensor 300 affects its responsiveness, recovery, and sensitivity. If the airflow velocity is less than a first preset velocity, the first sensor 300's recovery decreases, meaning its recovery time increases. If the airflow velocity is within the preset velocity range, the response and recovery times of the first sensor 300 decrease as the velocity increases. If the airflow velocity is greater than a second preset velocity, the sensitive material in the first sensor 300 may not fully react with odor molecules, resulting in a decrease in the sensitivity of the first sensor 300.

[0171] Furthermore, the researchers studied the factors that affect the gas flow rate in the refrigerator 1000 and found that the start and stop of the refrigeration system 200, the opening and closing of the door 20, and the storage location and storage quantity of the food in the refrigerator 1000 will all affect the airflow in the storage chamber 100.

[0172] In some embodiments, the gas flow rate passing through the surface of the first sensor 300 is related to the operating state of the refrigeration system 200. During the refrigeration process of the refrigerator 1000, the refrigeration system 200 is periodically started and stopped. When the refrigeration system 200 is started, the compressor 1 and the first fan 105 are both turned on, and the gas flow rate in the storage chamber 100 increases. When the refrigeration system 200 is shut down, the compressor 1 and the first fan 105 are both turned off, and the gas flow rate in the storage chamber 100 decreases significantly.

[0173] In some embodiments, the air flow rate across the surface of the first sensor 300 is related to the location and quantity of food stored within the refrigerator 1000. Depending on the location and quantity of food stored, the air flow rate across the surface of the first sensor 300 may also vary. For example, the greater the amount of food stored within the refrigerator 1000, and the closer the food is to the first air outlet 132, the first air inlet 133, or the first sensor 300, the more obstructed the air flow within the storage chamber 100, resulting in a lower air flow rate, which further affects the accuracy of the detection results of the first sensor 300.

[0174] Through simulation and actual testing, the researchers behind this disclosure determined that the optimal airflow velocity range for the first sensor 300 in the refrigerator 1000 is [Vx, Vy]. Specifically, if the airflow velocity across the surface of the first sensor 300 is within [Vx, Vy], the responsiveness, recovery, and sensitivity of the first sensor 300 meet functional requirements. However, if the airflow velocity is outside of [Vx, Vy], the response and recovery times of the first sensor 300 are prolonged, and its sensitivity is reduced, thereby affecting the accuracy of the first sensor 300 in detecting the concentration of odorous gases.

[0175] In addition, through simulation experiments and actual tests, the researchers of the present invention also found that when there is no food stored in the refrigerator 1000 or the amount of food stored is less than or equal to the preset amount, and the compressor 1 is in the refrigeration operation state, the air flow velocity V at the first air inlet 133 satisfies: V1≥V>V2, V2>Vy. Therefore, when a small amount of food is stored in the refrigerator 1000 and the compressor 1 is in the refrigeration operation state, the function of the first sensor 300 can meet the preset requirements.

[0176] However, when the amount of food stored in the refrigerator 1000 is greater than the preset amount, or when the compressor 1 is stopped, the air flow velocity passing through the surface of the first sensor 300 is much smaller than Vy, and the accuracy of the first sensor 300 will be reduced.

[0177] It should be noted that the amount of food stored in the refrigerator 1000 can be measured by the ratio of the total volume of the food to the total volume of the storage chamber 100 (eg, the refrigeration chamber 110), with the preset amount being, for example, one-third. Alternatively, the amount can be measured by the weight of the food.

[0178] On the other hand, researchers continued to study that the working principle of the first metal oxide type sensor 300 is that the target gas undergoes an oxidation-reduction reaction with the sensitive material under high temperature conditions above 200°C, causing the material resistance to change, thereby reflecting the gas concentration.

[0179] Therefore, the first sensor 300 needs to have its own heating resistor to heat the sensitive material to the required reaction temperature. This allows the first sensor 300 to accurately measure the concentration of odorous gases even at an average temperature of 4°C within the storage chamber 100. However, its sensitivity is lower than at room temperature.

[0180] At the same time, researchers have discovered that in low-temperature environments, temperature fluctuations are more likely to cause fluctuations in the sensitivity of the first sensor 300. Therefore, in the low-temperature environment of the storage room 100, it is necessary to minimize temperature fluctuations in the gas flowing over the surface of the first sensor 300 and maintain a constant airflow over the surface of the first sensor 300 to ensure the accuracy of the first sensor 300 in detecting the concentration of odorous gases.

[0181] The temperature T in the storage chamber 100 of refrigerator 100 fluctuates within the range of Tmin ≤ T ≤ Tmax due to the operation of refrigeration system 200. When refrigeration system 200 is activated, the temperature of storage chamber 100 gradually decreases to Tmin. Then, refrigeration system 200 is shut down. The temperature of storage chamber 100 gradually increases to Tmax, and refrigeration system 200 is activated again, and this cycle repeats. During the activation and deactivation of refrigeration system 200, the temperature of the gas in storage chamber 100 fluctuates.

[0182] Considering that compressor 1 produces considerable noise when refrigeration system 200 is activated, the number of times compressor 1 starts and stops should be minimized. Furthermore, refrigeration system 200 operates in all storage compartments 100 of refrigerator 1000. To control the temperature of the air flowing across the surface of first sensor 300, the temperature fluctuation range of each storage compartment 100 can be controlled to T1 ≤ T ≤ Tmax, with T1 > Tmin. This prevents repeated starting and stopping of compressor 1 and reduces noise.

[0183] On the other hand, research has shown that the sensitivity of the first sensor 300 in humid gas is lower than in dry gas. For example, for semiconductor-type first sensors 300, the operating temperature of the sensitive material is typically above 200°C. In humid gas, various light radical ions, rather than water molecules, are adsorbed on the surface of the semiconductor material, causing a change in the material's resistance and resulting in inaccurate odor detection by the first sensor 300. Therefore, to ensure more accurate detection of odorous gas concentrations by the first sensor 300, the humidity of the gas flowing through the surface of the first sensor 300 should be kept low, maintaining a dry environment.

[0184] However, when a user stores fresh food in the refrigerator 1000, especially when storing a large amount of fruits and vegetables, the humidity inside the refrigerator 1000 is relatively high. Some refrigerators 1000 are also equipped with a humidification function to prevent the fruits and vegetables from drying out, resulting in a high humidity in the storage chamber 100 of the refrigerator 1000. This will inevitably affect the accuracy of the first sensor 300.

[0185] Therefore, the refrigerator 1000 needs to control the humidity of the gas flowing through the surface of the first sensor 300 to ensure the accuracy of the first sensor 300 in detecting the concentration of the odorous gas. Through testing, the researchers of this disclosure found that the surface gas humidity S of the first sensor 300 in the refrigerator 1000 needs to meet S≤S1 for it to work properly.

[0186] It is understandable that during actual use of refrigerator 1000, the diverse food stored within refrigerator 1000 and the significant humidity fluctuations can lead to inaccurate detection of odorous gas concentrations, thereby affecting odor removal effectiveness. Furthermore, when door 20 is open, the storage chamber 100 is connected to the external environment, causing significant fluctuations in temperature, humidity, and airflow within the storage chamber 100, making them difficult to control. These factors can lead to significant fluctuations in the airflow velocity within the storage chamber 100, potentially leading to inaccurate odorous gas concentrations detected by the first sensor 300.

[0187] In summary, the researchers and developers of this disclosure have discovered through research that the accuracy of first sensor 300 in detecting odorous gas concentration is related to the temperature, humidity, and gas flow rate of the gas within refrigerator 1000. During actual use of refrigerator 1000, the gas conditions within refrigerator 1000, such as temperature, humidity, and gas flow rate, will constantly change depending on the refrigerator's usage, affecting the accuracy of first sensor 300 and, in turn, the odor removal effect.

[0188] In some embodiments, referring to Figures 12 to 14, the refrigerator 1000 also includes a gas regulating device 500, which is configured to adjust the gas parameters flowing through the surface of the first sensor 300 to ensure that the gas parameters are within a set range, so as to improve the accuracy of the first sensor 300 in detecting the concentration of odorous gas in the refrigerator 1000, thereby improving the odor removal effect in the refrigerator 1000.

[0189] In some embodiments, the gas parameter includes at least one of gas temperature, gas humidity, and gas flow rate. The gas regulating device 500 is configured to regulate at least one of the gas temperature, gas humidity, and gas flow rate of the gas flowing through the surface of the first sensor 300 so that the gas temperature, gas humidity, and gas flow rate of the gas flowing through the surface of the first sensor 300 are within a set range.

[0190] In some embodiments, referring to FIG. 23 , the controller 310 is coupled to the compressor 1 to control the start and stop of the compressor 1 and adjust the speed of the compressor 1 .

[0191] In some embodiments, the controller 310 is further coupled to the first fan 105 , and the first fan 105 is turned on and off under the control of the controller 310 to drive the cold air flow in the evaporation bin into the refrigeration chamber 110 through the refrigeration air duct 130 .

[0192] In some embodiments, the first sensor 300 , the gas regulating device 500 , and the controller 310 are all mounted on the air duct cover 131 .

[0193] In some embodiments, the gas regulating device 500 is located around the first sensor 300 to ensure the accuracy of gas parameter regulation.

[0194] In some embodiments, the gas regulating device 500 may be installed on a side of the air duct cover 131 facing the refrigerating chamber 110 to facilitate adjusting gas parameters.

[0195] 12 , 14 and 15 , the refrigerator 1000 further includes a mounting assembly 320 , which may be a housing structure with one side open. The first sensor 300 is fixed to the side of the air duct cover 131 facing away from the refrigerating chamber 110 via the mounting assembly 320 .

[0196] 14 and 15 , the mounting assembly 320 includes a body 323 and a clamping portion 321 . The clamping portion 321 is disposed near the opening of the body 323 , so that the first sensor 300 is clamped into the mounting assembly 320 through the clamping portion 321 .

[0197] The mounting assembly 320 also includes a vent 322, and the air duct cover 131 is provided with an air hole. After the mounting assembly 320 is secured to the air duct cover 131, the air hole and the vent 322 face each other. This allows air within the refrigerator compartment 110 to pass through the air hole and the vent 322 and pass through the first sensor 300 for detection.

[0198] 16 to 19 , the gas regulating device 500 includes a first housing 520. The first housing 520 forms a chamber.

[0199] In some embodiments, the first housing 520 may include two fixedly connected half shells, or, as shown in FIG18 , the first housing 520 may include a box body 525 and a cover 526. The box body 525 forms a cavity with one side open, and the cover 526 is disposed on the box body 525. The cover 526 and the box body 525 may be connected in various ways, such as by snapping or screwing.

[0200] In some embodiments, a sealing structure, such as a sealant or a sealing gasket, may be further provided between the cover 526 and the box body 525 to improve the airtightness of the chamber formed by the first shell 520 .

[0201] In some embodiments, a buckle 524 is provided on the cover body 526 , and a snap-fit ​​portion is provided on the air duct cover plate 131 , and the snap-fit ​​portion 524 snaps in engagement, thereby fixing the gas regulating device 500 on the air duct cover plate 131 .

[0202] 14 and 16 , the first shell 520 includes a second air inlet 521 and a second air outlet 522 , and the second air outlet 522 is opposite to the first sensor 300 . In this way, the regulated gas can be detected by passing through the first sensor 300 when the preset conditions are met, which is beneficial to improving the accuracy of the detection results of the first sensor 300 .

[0203] It should be noted that the installation location of the first sensor 300 is not fixed. For different models of refrigerators 1000, flow simulation can be performed on the air duct of the refrigerator 1000. Based on the results of the flow simulation, a location with appropriate air volume and convenient structure can be selected for installation. Therefore, the location of the gas regulating device 500 can be changed according to the installation location of the first sensor 300.

[0204] The air inlet 521 has an air inlet direction different from the air outlet 522, and there is a preset distance between the second air inlet 521 and the second air outlet 522. This arrangement avoids interference between the incoming gas and the outgoing gas, which is conducive to further improving the detection accuracy of the first sensor 300.

[0205] In some embodiments, the second air inlet 521 is disposed on the front side of the first housing 520, i.e., on the side of the first housing 520 facing the refrigeration chamber 110, to facilitate air inflow. The second air outlet 522 is disposed on the side of the first housing 520, so as to face the first sensor 300 disposed on the side of the first housing 520.

[0206] In some embodiments, the second air inlet 521 may include multiple air inlet holes arranged according to a set rule, such as a rectangular matrix, a circular matrix, etc. This arrangement can ensure the air intake area and prevent impurities from entering the first housing 520.

[0207] In some embodiments, a plurality of vertical bars are provided at the second air outlet 522 to form an air outlet grille, which can not only ensure the discharge of gas but also form a shield to protect the internal structure of the gas regulating device 500.

[0208] 12 , 18 , and 19 , the gas conditioning device 500 further includes a second fan 510 disposed within the chamber of the first housing 520 . The second fan 510 is mounted at a second air inlet 521 of the first housing 520 to drive the gas within the refrigeration chamber 110 into the interior of the first housing 520 .

[0209] The second blower 510 is configured to control the flow rate of gas flowing through the surface of the first sensor 300 to improve the accuracy of the signal output by the first sensor 300. For example, the controller 310 controls the flow rate of gas flowing through the surface of the first sensor 300 by controlling the rotation direction and speed of the second blower 510.

[0210] 18 and 19 , in the embodiment of the present disclosure, a guide air duct 523 is formed between the second air inlet 521 and the second air outlet 522 . The guide air duct 523 is configured to limit and guide the flow direction of gas in the first housing 520 .

[0211] In some embodiments, the air guide duct 523 is in a planar spiral shape, the second air inlet 521 is disposed at the center of the air guide duct 523, and the second air outlet 522 is disposed at the outlet end of the air guide duct 523. This arrangement ensures that the air intake direction of the second air inlet 521 and the air outlet direction of the second air outlet 522 are different, thereby ensuring a certain distance between the second air inlet 521 and the second air outlet 522. It also reduces the volume of the first housing 520, thereby reducing the installation space occupied by the gas regulating device 500 in the storage chamber 100, and extends the length of the gas flow path, thereby facilitating the adjustment of the gas flow rate.

[0212] In some embodiments, a planar spiral-shaped flow guide 5231 is disposed within the box body 525. The flow guide 5231 and the first housing 520 together define a planar spiral-shaped flow guide duct 523. This allows the length of the gas flow path within the first housing 520 to be extended within the limited space within the first housing 520, thereby facilitating adjustment of the gas flow rate, gas humidity, and gas temperature.

[0213] When the box body 525 and the cover body 526 are fixedly connected, the cover body 526 abuts against the flow guide 5231, thereby preventing the gas from flowing in the flow guide duct 523 and affecting the regulation of the gas flow rate.

[0214] Of course, the shape of the guide air duct 523 in the accompanying drawings is only an example. The guide air duct 523 can also be other shapes, such as a circular shape, an S shape, etc. This disclosure does not limit this.

[0215] In some embodiments, the second fan 510 may be a turbine fan to cooperate with the air guide duct 523 so that the gas enters the first shell 520 from the second air inlet 521 and is then discharged to the outside of the first shell 520 through the second air outlet 522 .

[0216] In some embodiments, the gas regulating device 500 further includes a heater 530 disposed within the chamber of the first housing 520. The heater 530 may include a heating element and a control element. The heating element generates heat under the control of the control element to regulate the temperature of the gas flowing through the surface of the first sensor 300. The heating element may be a heating wire that can be attached to the guide member 5231 of the air guide duct 523 to facilitate heating of the passing gas. The heating wire has a simple structure and is easy to install. The contact area between the heating wire and the flowing gas is large, which also helps improve heating efficiency.

[0217] The heater 530 is configured to adjust the temperature of the gas flowing through the surface of the first sensor 300 , that is, to heat the gas flowing through the surface of the first sensor 300 , so as to further improve the accuracy of the first sensor 300 .

[0218] Those skilled in the art can also adjust the size of the heater 530 according to actual needs to meet heating requirements. In some embodiments, the heater 530 includes multiple heating wires, which are spaced apart at different positions of the guide member 5231 along the gas flow direction to gradually heat the gas in the guide duct 523.

[0219] It should be noted that the heater 530 can be installed at any position on the flow guide 5231. For example, the heater can be located at the outlet end of the flow guide 5231. This arrangement allows the heated gas to reach the first sensor 300 as quickly as possible, preventing heat loss during gas flow, and helping to maintain the temperature of the gas flowing through the surface of the first sensor 300.

[0220] 18 and 19 , the gas conditioning device 500 further includes a moisture absorber 540 disposed in the chamber of the first housing 520. The moisture absorber 540 is configured to dehumidify the gas flowing through the first sensor 300 to further improve the accuracy of the first sensor 300.

[0221] The moisture absorber 540 can be installed in the air guide duct 523 to dehumidify the air flowing therethrough. In some embodiments, the moisture absorber 540 is installed between the outlet end of the air guide duct 523 and the second air outlet 522 .

[0222] Such an arrangement allows the dehumidified gas to reach the first sensor 300 as quickly as possible, thereby preventing the gas from absorbing moisture during the fluid flow process and preventing the temperature of the gas flowing through the surface of the first sensor 300 from decreasing.

[0223] In some embodiments, the desiccant 540 and the heater 530 are both disposed at the outlet end of the flow guide 5231 , so that the desiccant 540 is close to the heater 530 , which facilitates drying of the desiccant 540 .

[0224] In some embodiments, referring to Figures 19 and 20, the desiccant 540 includes a second shell 541 and a hygroscopic fiber 542. The hygroscopic fiber 542 is installed in the second shell 541. The second shell 541 is fixed to the outlet end of the guide member 5231. The fixing method of the second shell 541 includes but is not limited to screwing, clamping, bonding, etc.

[0225] In some embodiments, the hygroscopic fibers 542 may be loaded with a hygroscopic material such as calcium chloride to improve their hygroscopic properties. The disclosed embodiments utilize hygroscopic fibers 542 to increase the contact area with the gas and also increase the loading capacity of the hygroscopic material. When humid gas flows through the hygroscopic fibers 542, the hygroscopic material on the hygroscopic fibers 542 can absorb moisture from the gas, reducing the humidity of the gas passing through the hygroscopic fibers 542.

[0226] It should be noted that the desiccant 540 can be a disposable desiccant device that can be replaced after reaching saturation. Alternatively, the desiccant 540 can be a recoverable desiccant device that utilizes high-temperature flowing air to dehumidify, restoring the desiccant 540 to its original dry state. This configuration eliminates the need to replace the desiccant 540, thus reducing costs. In some embodiments of the present disclosure, the desiccant 540 utilizes a recoverable desiccant device.

[0227] Of course, the hygroscopic fiber 542 in some embodiments of the present disclosure may also be other types of hygroscopic materials, and the absorbed moisture can be taken away by the high-temperature flowing gas and the hygroscopic function can be restored.

[0228] In some embodiments, referring to Figures 18 and 19, the refrigerator 1000 further includes a gas detection component 400. The gas detection component 400 is disposed near the second air outlet 522 and is configured to detect gas parameters flowing through the first sensor 300. The gas parameters include at least one of gas temperature, gas humidity, or gas flow rate. The gas detection component 400 can be disposed independently. The gas detection component 400 can also be installed within the first housing 520 of the gas regulating device 500, which is both convenient for installation and helps improve the accuracy of gas parameter detection.

[0229] In some embodiments, the gas detection component 400 includes a third sensor 410 . The third sensor 410 is configured to detect the flow rate of the gas flowing through the surface of the first sensor 300 .

[0230] In some embodiments, the gas detection component 400 includes a fourth sensor 410 configured to detect the temperature of the gas flowing through the surface of the first sensor 300 .

[0231] In some embodiments, the gas detection component 400 includes a fifth sensor 420 configured to detect humidity of the gas flowing through the surface of the first sensor 300 .

[0232] In some embodiments, the fifth sensor 420 may be disposed on a side of the moisture absorbing fiber close to the second air outlet 522 to detect the humidity of the gas flowing through the moisture absorbing fiber of the moisture absorber 540 .

[0233] In some embodiments, the third sensor 430, the fourth sensor 410, and the fifth sensor 420 are located at the edge of the second air outlet 522, and the fourth sensor 410, the fifth sensor 420, and the third sensor 430 are arranged side by side on the inner surface of the first housing 520. This arrangement is conducive to improving the accuracy of gas parameter detection, and further helps to improve the detection accuracy of the first sensor 300.

[0234] It should be noted that the sensor types of the gas detection component 400 are not limited to these. For example, the gas detection component 400 may also include a fifth temperature sensor and a third temperature sensor. The present embodiment does not limit the arrangement order of the various sensors of the gas detection component 400, but it is necessary to ensure that the gas flows through the heater 530 and the moisture absorber 540 before passing through the gas detection component 400.

[0235] In some embodiments, the third sensor 430, the fourth sensor 410 and the fifth sensor 420 are arranged side by side between the second air outlet 522 and the desiccant 540, which is conducive to simultaneously detecting gas parameters at the same position, thereby improving the accuracy of gas parameter detection.

[0236] Through the above setting, the gas detection component 400 is located on the inner side of the second air outlet 522, and the second air outlet 522 is opposite to the first sensor 300 and the distance is shorter, so as to ensure that the temperature, humidity and flow rate of the gas flowing through the first sensor 300 are similar to the gas parameters detected by the gas detection component 400, thereby helping to improve the accuracy of the first sensor 300 in detecting the concentration of odorous gas.

[0237] It should be noted that the first sensor 300, the deodorizing device 12, the controller 310, the gas detection component 400 and the gas regulating device 500 may also be arranged at a location other than the refrigerating chamber 110, and the present disclosure does not impose any restrictions on this.

[0238] In some embodiments of the present disclosure, the refrigerator 1000 detects the gas flow rate passing through the first sensor 300 using a third sensor 430. By controlling the on / off switching of the second fan 510 and coordinating the on / off switching of the refrigeration system 200, the gas flow rate passing through the surface of the first sensor 300 is maintained within a set range. A heater 530 is added to the air duct 523 through which the air flows to control the gas temperature. A moisture absorber 540 is used to control the humidity of the gas passing through the surface of the first sensor 300. This improves the accuracy of the first sensor 300 in detecting odors.

[0239] 12, 21, and 22, in some embodiments, the first blower 105 is positioned near the first air outlet 132 and on the side of the air duct cover 131 away from the refrigerated compartment 110. The controller 310 is positioned near the first air outlet 132 to improve the accuracy of odor detection. The gas detection component 400 and the second blower 510 are both positioned near the first air outlet 132 and on the side of the air duct cover 131 closer to the refrigerated compartment 110 to facilitate detection and adjustment of the gas parameters.

[0240] In some embodiments, referring to FIG. 23 , the controller 310 is coupled to the refrigeration system 200, the first sensor 300, the gas detection component 400, the gas conditioning device 500, and the odor removal device 12. The controller 310 controls the operating state of the gas conditioning device 500 based on the opening and closing of the refrigeration system 200, the opening and closing of the door 20, and the gas parameters detected by the gas detection component 400, thereby adjusting the state of the gas flowing through the first sensor 300 and improving the accuracy of the first sensor 300 in detecting odors. When preset conditions are met, the controller 310 obtains the odorous gas concentration detected by the first sensor 300 and controls the opening and closing of the odor removal device 12 based on the odorous gas concentration, thereby ensuring the cleanliness of the gas within the storage chamber 100.

[0241] In some embodiments, the controller 310 is further configured to:

[0242] The gas detection component 400 obtains gas parameters of the gas flowing through the surface of the first sensor 300 .

[0243] The opening and closing status of the refrigeration system 200 and the opening and closing status of the door body 20 are obtained.

[0244] If it is determined that the door body 20 is in a closed state, the operating state of the gas regulating device 500 is controlled according to the gas parameters and the opening and closing state of the refrigeration system 200, and the odor gas concentration in the storage room 100 is obtained through the first sensor 300.

[0245] If it is determined that the door body 20 is in the open state, the odor gas concentration detected by the first sensor 300 is not obtained.

[0246] It should be noted that the gas parameter includes at least one of gas temperature, gas humidity, or gas flow rate. The gas temperature of the gas flowing through the surface of the first sensor 300 can be obtained by the fourth sensor, the gas humidity of the gas flowing through the surface of the first sensor 300 can be obtained by the fifth sensor, and the gas flow rate of the gas flowing through the surface of the first sensor 300 can be obtained by the third sensor.

[0247] The on / off state of the refrigeration system 200 can be obtained based on the on / off state of the compressor 1 and the first fan 105. For example, when the compressor 1 and the first fan 105 are on, the refrigeration system 200 is in the on state. When the compressor 1 is off, the refrigeration system 200 is in the off state.

[0248] The open / close state of the door 20 can be determined by providing a proximity switch between the door 20 and the housing 10. Alternatively, an electronic lock can be provided between the door 20 and the housing 10 to determine the open / close state of the door 20. This disclosure is not limited to this.

[0249] If it is determined that the door body 20 is in a closed state, the opening and closing and speed of the second fan 510 and the opening and closing and power of the heater 530 are controlled according to the detected gas temperature, gas humidity, gas flow rate, and the opening and closing state of the refrigeration system 200.

[0250] For example, the gas conditioning device adjusts the gas temperature to between T1 and Tmax, where T1 > Tmin, and the temperature T of the storage chamber 100 satisfies Tmin ≤ T ≤ Tmax. The gas flow rate is also adjusted to between Vx and Vy. The gas humidity is also adjusted to S ≤ S1. This ensures the accuracy of the odorous gas concentration within the storage chamber 100 acquired by the first sensor 300.

[0251] The controller 310 then obtains the odor gas concentration detected by the first sensor 300 and determines the operating status of the odor removal device based on the odor gas concentration. If the odor gas concentration is greater than or exceeds a set threshold, an odor is present in the refrigerator 1000, and the odor removal device 12 is activated. If the odor gas concentration is less than the set threshold, there is essentially no odor in the refrigerator 1000, and the odor removal device 12 does not need to be activated.

[0252] It is understood that when the door of refrigerator 1000 is open, storage compartment 100 is connected to the outside environment, and the temperature, humidity, and airflow within storage compartment 100 fluctuate significantly and are difficult to control. In this situation, first sensor 300 may function normally, but controller 310 does not obtain the odorous gas concentration detected by first sensor 300. This prevents detection errors from affecting the activation and deodorization device 12.

[0253] In some embodiments of the present disclosure, the gas detection component 400 obtains the gas parameters of the gas flowing through the surface of the first sensor 300, and also obtains the open / close status of the refrigeration system 200 and the open / close status of the door 20. When the door 20 is closed, the operating state of the gas regulating device 500 is controlled based on the gas parameters and the open / close status of the refrigeration system 200, thereby adjusting the gas temperature, gas humidity, and gas flow rate of the gas flowing through the surface of the first sensor 300. This helps improve the accuracy of the first sensor 300 in detecting the concentration of odorous gases, thereby improving the reliability and odor removal effect of the refrigerator 1000.

[0254] The following describes a method for adjusting the gas parameters flowing through the surface of the first sensor 300 in combination with various structures of the gas adjustment device 500. The gas parameters include at least one of gas temperature, gas humidity, or gas flow rate.

[0255] In some embodiments, when the gas parameter includes a gas flow rate, the controller 310 is further configured to:

[0256] The gas flow rate of the gas flowing through the surface of the first sensor 300 is obtained through the gas detection component 400 .

[0257] The opening and closing status of the refrigeration system 200 and the opening and closing status of the door body 20 are obtained.

[0258] When the door 20 is in the closed state, it is determined whether the refrigeration system 200 is in the activated state. If so, S1104 is executed. If not, S1106 is executed.

[0259] When the refrigeration system 200 is turned on, if the gas flow rate is less than a preset flow rate threshold, the second fan 510 is controlled to operate at a preset first speed. After the second fan 510 operates at the first speed for a preset first period of time, if the gas flow rate is less than the flow rate threshold, the second fan 510 is controlled to operate at a preset second speed.

[0260] When the refrigeration system 200 is turned off, the second fan 510 is controlled to operate at the second speed.

[0261] In some embodiments, when the gas parameter further includes gas temperature, the controller 310 is further configured to:

[0262] When the second blower 510 is started, the temperature of the gas flowing through the surface of the first sensor 300 is obtained.

[0263] According to the gas temperature and the preset mapping relationship between the gas temperature and the heater power, the first heating power of the heater 530 is determined, and the heater 530 is controlled to operate according to the first heating power.

[0264] When the second fan 510 is turned off, the heater 530 is controlled to be turned off.

[0265] It should be noted that when the second blower 510 is activated, gas flows out of the second air outlet 522 at a certain flow rate, and at this time, the gas temperature of the gas flowing through the surface of the first sensor 300 is more accurately obtained. It can also be understood that when the second blower 510 is activated, the operating state of the heater 530 is adjusted according to the gas temperature.

[0266] It can be understood that the heater 530 is controlled to operate at different powers according to different ranges of the detected gas temperature of the gas flowing through the surface of the first sensor 300 .

[0267] In some embodiments, the first heating power of the heater can be determined according to Table 7.

[0268] Table 7 Heater power matching table

[0269] When the gas temperature T is less than Ty, the gas temperature and the heating power of heater 530 are negatively correlated. That is, the preset mapping relationship between gas temperature and heater 530 power is negatively correlated. As the gas temperature increases, the operating power of heater 530 decreases. When the gas temperature T satisfies Ty ≤ T ≤ Tmax, and the gas temperature T approaches Tmax, controlling heater 530 to be turned off can meet the gas temperature requirement.

[0270] When the second blower 510 is turned off, the gas flowing through the heater 530 is very small or even zero. At this time, controlling the heater 530 to be turned off can not only save energy, but also prevent the gas regulating device 500 from being locally heated and affecting the refrigerated temperature of the storage chamber 100.

[0271] In refrigerators 1000 provided in some embodiments of the present disclosure, when the second blower 510 is operating, the fourth sensor 410 detects the temperature of the gas flowing through the surface of the first sensor 300. Depending on the gas temperature range, the heater 530 is controlled to operate at different power levels. This ensures that the gas temperature flowing through the surface of the first sensor 300 remains within a set range, thereby ensuring the accuracy of the first sensor 300's detection. It also reduces the impact of heat release from the heater 530 on the temperature of the storage compartment 100.

[0272] In some embodiments, when the gas parameter further includes gas humidity, the controller 310 is further configured to:

[0273] If it is determined that the gas humidity is less than or equal to the first humidity threshold, the concentration of the odorous gas in the storage chamber 100 is obtained through the first sensor 300.

[0274] If it is determined that the gas humidity is greater than the first humidity threshold, the second fan 510 is controlled to operate at a sixth speed, and the heater 530 is controlled to operate at a second heating power until the gas humidity is less than or equal to the second humidity threshold.

[0275] It is understandable that, under the action of the moisture absorber 540, the humidity S of the gas flowing through the first sensor 300 detected by the fifth sensor 420 will be less than or equal to the first humidity threshold S1. This is conducive to improving the accuracy of the first sensor 300 in detecting the concentration of the odorous gas.

[0276] As desiccant 540 continues to absorb moisture, it becomes saturated, causing the humidity S of the gas passing through desiccant 540 to exceed the first humidity threshold S1. At this point, desiccant 540 needs to be restored by controlling second blower 510 to operate at the sixth speed R6 rpm / min and heater 530 to operate at the second heating power W0.

[0277] It should be noted that the sixth speed R6 rpm / min is greater than the fifth speed R5 rpm / min. The second heating power is greater than the first heating power, W0>W1>W2>W3. The second humidity threshold is less than the first humidity threshold.

[0278] When the gas humidity S>S1, the first sensor 300 remains operational, but the controller does not obtain the odorous gas concentration detected by the first sensor 300. Since the desiccant 540 is saturated at this point, the second fan 510 is controlled to operate at the sixth speed R6 rpm / min, and the heater 530 is controlled to operate at the second heating power W0 for the second duration. This allows the high-temperature flowing gas to remove moisture from the desiccant, allowing the desiccant 540 to resume its moisture absorption function.

[0279] After the second duration of operation, if the air humidity S is still greater than S1-S0, the second fan 510 is controlled to continue operating at the sixth speed R6 rpm / min, and the heater 530 is controlled to operate at the second heating power W0, and the operation is continued for the second duration. After the second duration of operation, the fifth sensor 430 detects that the air humidity S is less than or equal to S1-S0, and the heater 530 and the second fan 510 are controlled to return to the operation mode before the humidity S>S1. Otherwise, the second fan 510 is controlled to continue operating at the sixth speed R6 rpm / min, and the heater 530 is controlled to operate at the second heating power W0 until the air humidity is less than or equal to the second humidity threshold S1-S0.

[0280] In some embodiments, the sixth speed may be the maximum speed of the second fan 510 .

[0281] It should be noted that S0 is the set humidity hysteresis value, which is the difference required to return to a non-alarm state after an alarm. Setting the humidity hysteresis value prevents the gas humidity detected by the fifth sensor 430 from fluctuating around the first humidity threshold S1, which could cause the second fan 510 to be in a state of alternating on and off. |S1-S0| is the second humidity threshold.

[0282] In some embodiments of the present disclosure, when the gas humidity is less than or equal to a first humidity threshold, the concentration of odorous gas detected by the first sensor 300 is obtained. When the gas humidity is greater than the first humidity threshold, the second fan is controlled to operate at a sixth speed and the heater 530 is controlled to operate at a second heating power, so that high-temperature gas continuously flows through the desiccant, removing moisture from the desiccant 540 and restoring the desiccant's desiccant function. Furthermore, when the gas humidity is less than or equal to a second humidity threshold, the desiccant 540 is determined to have resumed its desiccant function. The second humidity threshold is less than the first humidity threshold, which prevents fluctuations in gas humidity at the first humidity threshold from causing the second fan 510 to alternately start and stop.

[0283] In the following, another method for adjusting the gas parameter flowing through the surface of the first sensor 300 is described in conjunction with various structures of the gas adjustment device 500. The gas parameter includes at least one of gas temperature, gas humidity or gas flow rate.

[0284] In some embodiments, the gas parameter includes a gas flow rate. The controller 310 is further configured to: obtain the operating status of the compressor 1 and the operating status of the first fan 105 to determine the operating condition of the refrigeration system 200; obtain the gas flow rate within the storage chamber 100; match a corresponding target speed in a preset speed control library based on the operating condition and the gas flow rate; and control the operation of the second fan 510 based on the target speed.

[0285] It is understandable that the air flow velocity is an important factor affecting the accuracy of the detection result of the first sensor 300 , and the operating status of the compressor 1 and the first fan 105 will affect the air flow conditions in the storage chamber 100 .

[0286] It should be noted that the speed control library includes the mapping relationship between different operating conditions of the refrigerator 1000 and different gas flow rates in the storage chamber 100 and the target speed. Therefore, the corresponding target speed can be obtained in the speed control library through the operating conditions and the gas flow rate.

[0287] The speed control library can be obtained through simulation and field testing. For example, based on the gas flow direction and gas flow rate within the storage chamber 100, the air flow direction and gas flow rate flowing through the surface of the first sensor 300 under different operating conditions of the refrigerator 1000 are simulated. By simulating different speeds of the second fan 510, the current gas flow direction and gas flow rate flowing through the surface of the first sensor 300 are corrected, thereby determining the corresponding target speed value of the second fan 510 and ensuring the accuracy of the airflow correction.

[0288] In some embodiments of the present disclosure, a third sensor 430 and a second fan 510 are installed near the first sensor 300. The target speed of the second fan 510 is determined by obtaining the operating conditions of the refrigerator 1000 and the gas flow rate in the storage chamber 100, and the second fan 510 is controlled to operate at different speeds, thereby achieving precise control of the gas flow rate flowing through the surface of the first sensor 300 and ensuring the reliability of the function of the first sensor 300.

[0289] In some embodiments, the controller 310 is further configured to:

[0290] If it is determined that the compressor 1 and the first fan 105 are both in the operating state, then the operating condition is determined to be the first operating condition.

[0291] If it is determined that the compressor 1 is in the shutdown state, the operating condition is determined to be the second operating condition.

[0292] It is understood that two operating conditions are set. In the first operating condition, since the first fan 105 is turned on, the second fan 510 can be turned off or run at a low speed, so that the air flow velocity flowing through the surface of the first sensor 300 is within the gas flow velocity range. This saves energy and reduces noise.

[0293] In the second operating condition, since the compressor 1 is turned off, the noise level is relatively low. However, the first fan 105 is turned off, resulting in slow air circulation in the storage chamber 100 and uneven odor diffusion. Therefore, the second fan 510 needs to increase its speed to accelerate air circulation in the storage chamber 100, making the odor distribution more even and improving the recognition accuracy of the first sensor 300.

[0294] In some embodiments, the controller 310 is further configured to:

[0295] If it is determined that the operating condition is the first operating condition and the gas flow rate is within a preset first range, the target speed is determined to be the first speed.

[0296] If it is determined that the operating condition is the first operating condition and the gas flow rate is within a preset second range, the target speed is determined to be the second speed.

[0297] The maximum value of the first range is less than or equal to the minimum value of the preset airflow speed interval, and the minimum value of the second range is greater than or equal to the maximum value of the airflow speed interval. The first rotational speed is greater than the second rotational speed.

[0298] It should be noted that the preset gas flow rate range is a gas flow rate range suitable for the operation of the first sensor 300. Within the gas flow rate range, the error of the detection result of the first sensor 300 is within the preset error, thereby ensuring the accuracy of the detection result of the first sensor 300.

[0299] For example, the airflow velocity interval is [Vx, Vy]. The minimum value Vx of the airflow velocity interval is determined as the edge value within the first range, and the maximum value Vy of the airflow velocity interval is determined as the edge value within the second range. Then, the first range is (0, Vx) and the second range is (Vy, +∞).

[0300] If the gas flow rate is within the first range, the gas flow rate at the first sensor 300 needs to be increased. If the gas flow rate is within the second range, the gas flow rate at the first sensor 300 needs to be decreased.

[0301] The first rotational speed is greater than the second rotational speed. For example, the first rotational speed is R1 rpm / min, the second rotational speed is R2 rpm / min, and R1 is greater than R2.

[0302] It should be noted that the first speed can be a positive number, and the second speed can be a negative number. When the first speed is a positive number, the airflow velocity passing through the first sensor 300 is increased. When the second speed is a negative number, the second fan 510 rotates in the reverse direction, thereby reducing the airflow velocity passing through the first sensor 300.

[0303] At this time, under the first operating condition, the compressor 1 is running and the first fan 105 is turned on. If the gas flow rate Vt is within (0, Vx), the target speed is determined to be the first speed R1 rpm / min. If the gas flow rate Vt is within (Vy, +∞), the target speed is determined to be the second speed R2 rpm / min.

[0304] Therefore, under the first working condition, the velocity of the airflow passing through the first sensor 300 is adjusted by the forward and reverse rotation of the second fan 510, thereby ensuring that the airflow velocity at the first sensor 300 is within the airflow velocity range.

[0305] In some embodiments, the controller 310 is further configured to:

[0306] After the second fan 510 is controlled to operate for a preset first time period with the first speed as the target speed, the gas flow rate in the storage chamber 100 is obtained again.

[0307] If it is determined that the re-detected gas flow rate is still within the first range, the second fan 510 is controlled to operate at a preset third speed.

[0308] After the second fan 510 is controlled to operate for a preset first time period with the second speed as the target speed, the gas flow rate in the storage chamber 100 is obtained again.

[0309] If it is determined that the re-detected gas flow rate is still within the second range, the second fan 510 is controlled to operate at a preset fourth speed.

[0310] It should be noted that the third speed is greater than the first speed, and the fourth speed is less than the second speed.

[0311] For example, if the first duration is 5 minutes, after the second fan 510 has been running at the first speed for 5 minutes, if the gas flow rate is still within the first range, it indicates that the gas flow rate has not yet increased to the appropriate gas flow rate range. In this case, the forward speed of the second fan 510 is further increased, and the second fan 510 is controlled to operate at a third speed to increase the gas flow rate until the gas flow rate is within the appropriate gas flow rate range. The third speed is greater than the first speed.

[0312] Similarly, after the second fan 510 has been running at the fourth speed for 5 minutes, if the gas flow rate is still within the second range, it indicates that the gas flow rate has not yet been reduced to the appropriate gas flow rate range. In this case, the wind speed of the second fan 510 is further increased in the reverse direction, and the second fan 510 is controlled to further reduce the gas flow rate at the fourth speed, thereby reducing the gas flow rate until the gas flow rate is within the gas flow rate range. The fourth speed is lower than the second speed.

[0313] It should be noted that the first and second speed settings are suitable for most scenarios, and the two-speed setting reduces energy consumption. The third and fourth speed settings can improve the tolerance of wind speed compensation, that is, improve the ability of the second fan 510 to adjust the gas flow rate. In this way, if wind speed compensation using the first and second speeds cannot meet the requirements, the compensation amount can be increased to ensure that the gas flow rate remains within the airflow speed range suitable for the operation of the first sensor 300.

[0314] In some embodiments, the controller 310 is further configured to:

[0315] If it is determined that the operating condition is the second operating condition, the target rotational speed of the second fan 510 is obtained.

[0316] If it is determined that the target speed is greater than or equal to the preset speed threshold, the second fan 510 is kept running at the target speed.

[0317] If it is determined that the target rotational speed is less than the rotational speed threshold, the second fan 510 is controlled to operate at a preset fifth rotational speed.

[0318] It should be noted that the fifth speed is greater than or equal to the speed threshold.

[0319] In the second working condition, the temperature of the storage chamber 100 drops to within the preset temperature range. At this time, the compressor 1 and the first fan 105 stop running, and the gas flow rate in the storage chamber 100 decreases.

[0320] At this time, the target speed of the second fan 510 is obtained. If the second fan 510 is currently operating at a relatively high speed, that is, the target speed is greater than or equal to the preset speed threshold, the second fan 510 is maintained at the target speed. If the second fan is currently operating at a relatively low speed, that is, the target speed is less than the speed threshold, the second fan is switched to operating at R5 rpm / min, with the fifth speed being greater than or equal to the speed threshold.

[0321] In some embodiments, since the airflow in the storage chamber 100 is also affected by the user opening and closing the door, the controller 310 is further configured to: if it is determined that the door 20 of the refrigerator 1000 is in an open state, control the second fan 510 to stop running.

[0322] When a user opens the door, air exchanges occur between the interior of refrigerator 1000 and the external environment, causing fluctuations in the temperature, humidity, and airflow within storage compartment 100. Therefore, upon determining that the user has opened the door, refrigerator 1000 controls second fan 510 to stop operating. During this time, first sensor 300 operates normally, but controller 310 does not read its output. This prevents external interference with the airflow within storage compartment 100 from affecting the output of first sensor 300, further preventing misjudgment by controller 310 and the resulting abnormal speed of second fan 510.

[0323] In some embodiments, the gas parameter includes gas temperature, and the controller 310 is further configured to:

[0324] When the first sensor 300 starts to work, the temperature of the gas flowing through the surface of the fourth sensor 420 is detected.

[0325] The corresponding operating power is determined in a preset power matching library according to the gas temperature, and the heater 530 is controlled to operate with the operating power.

[0326] It should be noted that the power matching library can be a power matching table that includes a mapping relationship between gas temperature and heater 530 power, see Table 7. It should be noted that heater power W1>W2>W3. When the first sensor 300 stops operating, the heater 530 stops operating regardless of the temperature range.

[0327] In this way, temperature compensation is performed by the heater 530 to ensure that the first sensor 300 operates within a suitable temperature range, thereby ensuring the accuracy of the detection result of the first sensor 300.

[0328] It is understood that due to the effect of the moisture-absorbing fibers, the humidity of the gas after passing through the moisture-absorbing fibers is generally S ≤ S1. However, due to the moisture saturation of the moisture absorber 540, for example, if the moisture absorber 540 is exposed to a high humidity environment for a long time, the humidity of the gas after passing through the moisture-absorbing fibers may be S > S1. Therefore, refrigerators 1000 in some embodiments of the present disclosure monitor the humidity of the gas after dehumidification to determine whether to perform the dehumidification operation of the moisture absorber 540.

[0329] In some embodiments, the gas parameter includes gas humidity. The controller 310 is further configured to obtain the humidity of the gas currently flowing through the desiccant 540. If the current humidity exceeds a preset first humidity threshold, the operating parameters of the second fan 510 and the heater 530 are switched from the current initial parameters to preset parameters. Specifically, the speed of the second fan 510 is increased to a preset sixth speed, and the power of the heater 530 is increased to a preset second heating power.

[0330] It should be noted that the first humidity threshold is greater than or equal to the maximum value of the surface gas humidity range suitable for the first sensor 300. When the gas humidity S detected by the fifth sensor is greater than S1, the first sensor 300 still operates, but the controller 310 does not read the output value of the first sensor 300.

[0331] It is understood that when the gas humidity exceeds the maximum value of the surface gas humidity range suitable for operation of the first sensor 300, it indicates that the hygroscopic fibers have reached a saturated state. At this point, the gas flow rate is increased, and the heating power of the heater 530 is increased to blow away the moisture on the hygroscopic fibers, restoring the moisture absorption function of the moisture absorber 540.

[0332] In some embodiments, the controller 310 is further configured to:

[0333] After controlling the second fan 510 and the heater 530 to run for a preset second time period with the preset parameters, the current humidity of the airflow passing through the desiccant 540 is detected again, and the current difference between the first humidity threshold and the current humidity detected again is calculated.

[0334] If it is determined that the current difference is less than the preset humidity return difference, the second fan 510 and the heater 530 are controlled to re-run for the second time period with the preset parameters, and the current difference is updated with the re-detected current humidity, and the updated current difference is judged until the current difference is greater than or equal to the humidity return difference.

[0335] If it is determined that the current difference is greater than or equal to the humidity return difference, the operating parameters of the second fan 510 and the heater 530 are restored to the initial parameters, and the odor gas concentration value of the first sensor 300 is read, and odor purification control is performed according to the odor gas concentration value.

[0336] It should be noted that the operating parameters of the second fan 510 include the rotation speed of the second fan 510. The operating parameters of the heater 530 include the heating power of the heater 530.

[0337] It is understood that after the second fan 510 and heater 530 are controlled to operate for the second time period at the preset parameters, if the fifth sensor 420 detects that the gas humidity is still in the state S>S1-S0, operation with the preset parameters will continue until the current difference is greater than or equal to the humidity return difference value. If the current difference ΔS is greater than or equal to the humidity return difference value S0, the heater 530 and second fan 510 will be controlled to return to the initial parameters and the odorous gas concentration measured by the first sensor 300 will be read to perform odor removal control.

[0338] Some embodiments of the present disclosure further provide another method for controlling the refrigerator 1000, which can be executed by the controller 310 of the refrigerator 1000. Referring to Figure 24, the method includes S101 to S106.

[0339] S101 , obtaining gas parameters of the gas flowing through the surface of the first sensor 300 through the gas detection component 400 .

[0340] S102 , obtaining the on / off status of the refrigeration system 200 and the open / close status of the door 20 .

[0341] S103, determine whether the door body 20 is in the open state. If so, execute S106. If not, execute S104.

[0342] S104 , controlling the operating state of the gas regulating device 500 according to the gas parameters and the on / off state of the refrigeration system 200 .

[0343] S105 , obtaining the odorous gas concentration in the storage chamber 100 through the first sensor 300 .

[0344] S106: Do not obtain the odorous gas concentration detected by the first sensor 300.

[0345] In some embodiments, referring to FIG. 25 , the gas parameter includes a gas flow rate, and the method includes S201 to S204 .

[0346] S201 , obtaining the operating status of the compressor 1 and the operating status of the first fan 105 to determine the operating condition of the refrigeration system 200 .

[0347] S202 , obtaining the gas flow rate in the storage chamber 100 .

[0348] S203: Match a corresponding target speed in a preset speed control library according to the operating condition and the gas flow rate.

[0349] S204: Control the second fan 510 to operate according to the target speed.

[0350] In some embodiments, referring to FIG. 26 , the S201 includes S301 to S305 .

[0351] S301 , obtaining the operating status of the compressor 1 and the operating status of the first fan 105 .

[0352] S302: Determine whether compressor 1 is on. If not, execute S303. If yes, execute S304.

[0353] S303: Determine that the operating condition of the refrigeration system 200 is the second operating condition. That is, if it is determined that the compressor 1 is in the shutdown state, the operating condition of the refrigeration system 200 is the second operating condition (off state).

[0354] S304: Determine whether the first fan 105 is turned on. If so, execute S305. If not, return to S301.

[0355] S305: Determine whether the operating state of the refrigeration system 200 is the first operating state. That is, if it is determined that the compressor 1 and the first fan 105 are both in the operating state, the operating state of the refrigeration system 200 is the first operating state (on state).

[0356] 27 , after S202 , the method further includes S1001 to S1011 .

[0357] S1001, determine whether the refrigeration system 200 is turned on. If so, execute S1002. If not, execute other control logic.

[0358] S1002: Determine whether the gas flow rate is within the first range (0, Vx). If so, execute S1003. If not, execute S1007.

[0359] S1003: Control the second fan 510 to operate with the preset first speed as the target speed.

[0360] S1004, after running for 5 minutes, obtain the current gas flow rate in the storage chamber 100 again.

[0361] S1005: Determine whether the gas flow rate is still within the first range (0, Vx). If so, execute S1006. If not, return to S1001.

[0362] S1006 , controlling the second fan 510 to operate with the preset third speed as the target speed, and returning to S1004 .

[0363] S1007: Determine whether the gas flow rate is within the second range (Vy, +∞). If so, execute S1008. If not, return to S1001.

[0364] S1008 : Control the second fan 510 to operate with the preset second speed as the target speed.

[0365] S1009, after running for 5 minutes, obtain the gas flow rate in the current storage chamber 100 again.

[0366] S1010: Determine whether the gas flow rate is still within the second range (Vy, +∞). If so, execute S1011. If not, return to S1001.

[0367] S1011 , controlling the second fan 510 to operate with the preset fourth speed as the target speed, and returning to S1009 .

[0368] In other embodiments, referring to FIG. 28 , when the gas parameter includes a gas flow rate, the method includes S1101 to S1106 .

[0369] S1101 , obtaining the gas flow rate of the gas flowing through the surface of the first sensor 300 through the gas detection component 400 .

[0370] S1102 , obtaining the on / off status of the refrigeration system 200 and the open / close status of the door 20 .

[0371] S1103: When the door 20 is in the closed state, determine whether the refrigeration system 200 is in the activated state. If so, execute S1104. If not, execute S1106.

[0372] S1104: If the gas flow rate is less than the flow rate threshold, control the second fan 510 to operate at a preset first speed.

[0373] S1105 , after the second fan 510 runs at the first speed for a first period of time, if the gas flow rate is less than the flow rate threshold, control the second fan 510 to run at a preset second speed.

[0374] S1106: Control the second fan 510 to operate at the second speed.

[0375] In some embodiments, the gas parameter includes gas temperature. Referring to Figure 29 , the method includes S1201 to S1204.

[0376] S1201 , when the second blower 510 is started, the temperature of the gas flowing through the surface of the first sensor 300 is obtained.

[0377] S1202 : Determine a first heating power of the heater 530 according to the gas temperature and a preset mapping relationship between the gas temperature and the heater power.

[0378] S1203, controlling the heater 530 to operate according to the first heating power.

[0379] S1204: When the second fan 510 is turned off, the heater 530 is controlled to be turned off.

[0380] In some embodiments, the gas parameter includes gas humidity. Referring to Figure 30 , the method includes S1301 to S1307.

[0381] S1301 , obtaining the humidity of the gas currently flowing through the first sensor 300 .

[0382] S1302: Determine whether the gas humidity is greater than a preset first humidity threshold. If not, return to S1301. If yes, execute S1303.

[0383] S1303: Switch the operating parameters of the second fan 510 and the heater 530 from the current initial parameters to the preset parameters, that is, increase the speed of the second fan 510 to the preset sixth speed, and control the power of the heater 530 to increase to the preset second heating power.

[0384] S1304: After running for 5 minutes, the humidity of the gas currently flowing through the first sensor 300 is detected again.

[0385] S1305: Calculate the difference between the first humidity threshold and the re-detected gas humidity as a current difference ΔS.

[0386] S1306: Determine whether the current difference ΔS is less than the humidity difference S0. If so, return to S1304. If not, execute S1307.

[0387] S1307, controlling the heater 530 and the second fan 510 to resume operation at initial parameters, and obtaining the odorous gas concentration detected by the first sensor 300, and performing odor purification control according to the odorous gas concentration.

[0388] In some embodiments, referring to FIG31 , after obtaining the gas parameters currently flowing through the gas including gas humidity, the method includes S1401 to S1402.

[0389] S1401: If it is determined that the gas humidity is less than or equal to the first humidity threshold, the concentration of the odorous gas in the storage room 100 is obtained through the first sensor 300.

[0390] S1402: If it is determined that the gas humidity is greater than the first humidity threshold, the second fan 510 is controlled to operate at a preset sixth speed, and the heater 530 is controlled to operate at a preset second heating power until the gas humidity is less than or equal to the preset second humidity threshold.

[0391] It should be noted that the working process of the control method of the refrigerator 1000 provided in some embodiments of the present disclosure can refer to the working process of the controller 310 in the refrigerator 1000 described in the above embodiments, and will not be repeated here.

[0392] In some embodiments of the present disclosure, a refrigerator 1000 and a control method for refrigerator 1000 include a first sensor 300 configured to detect odors within refrigerator 1000 to ensure proper functioning of first sensor 300. Refrigerator 1000 also uses a gas detection component 400 to obtain gas parameters of the gas flowing through the surface of first sensor 300 and a gas adjustment device 500 to correct the gas parameters of the current gas to ensure the accuracy of the detection results of first sensor 300, thereby improving the odor removal effect of refrigerator 1000.

[0393] Those skilled in the art will understand that the scope of the present invention is not limited to the above specific embodiments, and that certain elements of the embodiments may be modified and replaced without departing from the spirit of the present application. The scope of the present application is limited by the appended claims.

Claims

1. A refrigerator, include: A box body, the box body comprising a storage room; a door body, configured to open or close the storage chamber; A first sensor is disposed in the storage room and is configured to detect the concentration of odorous gas in the storage room, wherein a database corresponding to food types is pre-established in the first sensor; an odor purification device, disposed in the storage room and configured to purify odorous gases in the storage room; A camera device, disposed in the storage room and configured to capture images of food stored in the storage room; a second sensor, disposed at the bottom of the storage chamber and configured to detect the weight of food stored in the storage chamber; as well as A controller, the controller being configured to: In response to the food identification instruction, the food image captured by the camera device is obtained, and the type of food in the storage chamber is determined according to the food image; wherein the food type includes at least one of odor-identifiable food or odor-unidentifiable food; Determining a target operating mode of the odor-purifying device according to the type of food; Wherein, the target operating mode is determined according to at least one of the current odorous gas concentration or food weight value in the storage chamber.

2. The refrigerator according to claim 1, in, The controller is also configured to: If it is determined that the types of food in the storage room are all identifiable food with odor, obtaining the concentration of odorous gas in the current storage room detected by the first sensor; The target operation mode corresponding to the odor purification device is determined according to the odor gas concentration, so as to control the operation of the odor purification device according to the target operation mode.

3. The refrigerator according to claim 2, in, The controller is also configured to: Searching for a corresponding target odor level in at least one preset odor level according to the odor gas concentration, and acquiring the target operation mode of the odor purification device according to the target odor level; The odor level is positively correlated with the odor gas concentration; and any one of the at least one odor level corresponds to a first operating mode of the odor purification device.

4. The refrigerator according to any one of claims 1 to 3, in, The controller is also configured to: If it is determined that the types of food in the storage room are all food with unrecognizable smell, obtaining a first weight of all food in the storage room currently detected by the second sensor; A target operating mode corresponding to the odor purification device is obtained according to the first weight.

5. The refrigerator according to claim 4, in, The controller is also configured to: searching for a corresponding target weight level in at least one preset weight level according to the first weight, and determining the target operating mode of the deodorizing device according to the target weight level; Wherein, the weight level is positively correlated with the weight value of the food material; and any weight level of the at least one weight level corresponds to a second operating mode of the deodorizing device.

6. The refrigerator according to any one of claims 1 to 5, in, The controller is also configured to: If it is determined that the types of food in the storage room include food with identifiable smell and food with unidentifiable smell, obtaining a second weight of all food with unidentifiable smell currently in the storage room detected by the second sensor; According to the second weight, a corresponding target weight level is searched in at least one preset weight level, and the target operation logic of the deodorizing device is obtained according to the target weight level; wherein each weight level in the at least one weight level corresponds to an operation logic of the deodorizing device, and each operation logic includes a third operation mode corresponding to the deodorizing device at at least one different odor level; Acquire the odor gas concentration of the current storage room detected by the first sensor, determine the corresponding odor level according to the odor gas concentration, and acquire the target operation mode corresponding to the odor purification device in the target operation logic according to the odor level.

7. The refrigerator according to any one of claims 1 to 6, in, The parameters of the operation mode include the operation rules, the number of cycles of the operation rules and the idle time; the operation rules include the start-up time and shutdown time of the deodorizing device in one operation cycle; The odor-removing device enters an idle state after completing one operation cycle, and the duration of entering the idle state is greater than the After a preset idle time, the deodorizing device enters the next operation cycle.

8. The refrigerator according to claim 7, in, The odor gas concentration is divided into at least two odor levels; any odor level of the at least two odor levels is positively correlated with the odor gas concentration; The number of cycles of the operation rule is positively correlated with the odor level, and the idle time is negatively correlated with the odor level; The weight of the food in the storage room is divided into at least two weight levels; any weight level of the at least two weight levels is positively correlated with the weight of the food; The number of cycles of the operation rule is positively correlated with the weight of the food in the storage chamber, and the idle time is negatively correlated with the weight of the food in the storage chamber.

9. A refrigerator, include: A box body, the box body comprising a storage room; a door body, configured to open or close the storage chamber; A refrigeration system is disposed in the box and is configured to provide cooling for the storage room by controlling a refrigerant; A first sensor is disposed in the storage room and is configured to detect the concentration of odorous gas in the storage room; a gas detection component, disposed in the storage chamber and configured to obtain gas parameters of the gas flowing through the surface of the first sensor, the gas parameters including at least one of gas temperature, gas humidity or gas flow rate; a gas regulating device, disposed in the storage chamber and close to the first sensor; the gas regulating device is configured to regulate the gas parameter of the gas flowing through the surface of the first sensor; as well as A controller, the controller being configured to: When the door body is in a closed state, controlling the operating state of the gas regulating device according to the gas parameters and the on / off state of the refrigeration system; And the concentration of odorous gas in the storage chamber is obtained through the first sensor.

10. The refrigerator according to claim 9, in, The gas parameters include the gas flow rate; The refrigeration system comprises: a compressor configured to compress a refrigerant; and a first fan configured to promote gas circulation in the storage chamber; The gas detection component includes a third sensor configured to detect a flow rate of gas flowing through a surface of the first sensor; The gas regulating device includes a second fan, which is arranged near the first sensor and is configured to regulate the flow rate of the gas flowing through the surface of the first sensor; Wherein, the controller is further configured as: Acquire the operating state of the compressor and the operating state of the first fan, and determine the on / off state of the refrigeration system according to the operating state of the compressor and the operating state of the first fan; Acquire the gas flow rate in the storage chamber, and confirm the corresponding target speed in a preset speed control library according to the on / off state of the refrigeration system and the gas flow rate; The second fan is controlled to operate according to the target speed.

11. The refrigerator according to claim 10, in, The controller is also configured to: When the refrigeration system is in the startup state, If it is determined that the gas flow rate is within a preset first range, determining the target speed to be a first speed; If it is determined that the gas flow rate is within a preset second range, determining the target rotation speed to be a second rotation speed; Among them, the first rotation speed is greater than the second rotation speed, the maximum value of the first range is less than or equal to the minimum value of the preset gas flow rate interval in which the first sensor works, and the minimum value of the second range is greater than or equal to the maximum value of the preset gas flow rate interval.

12. The refrigerator according to claim 11, in, The controller is also configured to: After controlling the second fan to run for a preset first time period with the first speed as the target speed, obtaining the current gas flow rate in the storage chamber again; If it is determined that the gas flow rate obtained again is still within the first range, the second fan is controlled to operate at a preset third speed. OK; After controlling the second fan to run for the first time period with the second speed as the target speed, obtaining the current gas flow rate in the storage chamber again; If it is determined that the gas flow rate obtained again is still within the second range, controlling the second fan to operate at a preset fourth speed; The third speed is greater than the first speed, and the fourth speed is less than the second speed.

13. The refrigerator according to any one of claims 10 to 12, in, The controller is also configured to: When the refrigeration system is in a closed state, obtaining a target rotation speed of the second fan; If it is determined that the target speed is greater than or equal to the preset speed threshold, controlling the second fan to continue to operate at the target speed; If it is determined that the target speed is less than the speed threshold, controlling the second fan to operate at a preset fifth speed; Wherein, the fifth speed is greater than or equal to the speed threshold.

14. The refrigerator according to any one of claims 9 to 13, in, The gas regulating device comprises: a second blower disposed near the first sensor and configured to control a flow rate of gas flowing through a surface of the first sensor; and A heater is configured to adjust a temperature of gas flowing across the first sensor surface.

15. The refrigerator according to any one of claims 14, in, The gas parameters include the gas temperature; The gas detection component further includes a fourth sensor configured to detect a temperature of the gas flowing through a surface of the first sensor; The controller is also configured to: When the second fan is in an on state, obtaining the temperature of the gas flowing through the surface of the first sensor; Determining a first heating power of the heater according to the gas temperature and a preset mapping relationship between the gas temperature and the heater power; controlling the heater to operate according to the first heating power; When the second fan is turned off, the heater is controlled to be turned off.

16. The refrigerator according to claim 14 or 15, in, The gas parameters include the gas humidity; The gas detection component includes a fifth sensor configured to detect humidity of the gas flowing through a surface of the first sensor; The gas conditioning device further includes a moisture absorber configured to absorb moisture from the gas flowing through the surface of the first sensor; The controller is also configured to: Acquiring the humidity of the gas flowing through the surface of the first sensor; If it is determined that the gas humidity is less than or equal to a preset first humidity threshold, obtaining the concentration of the odorous gas in the storage room through the first sensor; If it is determined that the gas humidity is greater than the first humidity threshold, switching the operating parameters of the second fan and the heater from current initial parameters to preset parameters; Wherein, the operating parameters of the second fan include the rotation speed of the second fan; the operating parameters of the heater include the heating power of the heater; The first humidity threshold is greater than or equal to a maximum value of a gas humidity range in which the first sensor operates.

17. The refrigerator according to claim 16, in, The controller is also configured to: After controlling the second fan and the heater to run for a preset second time period with the preset parameters, obtaining the humidity of the gas currently flowing through the desiccator again, and calculating the humidity difference between the first humidity threshold and the current gas humidity obtained again; If it is determined that the humidity difference is less than the preset humidity return difference, continue to control the second fan and the heater to operate with the preset parameters; After re-running the second time period, re-obtaining the current humidity and recalculating the current humidity difference, and judging the current humidity difference until the current humidity difference is greater than or equal to the humidity return difference; If it is determined that the humidity difference is greater than or equal to the humidity hysteresis difference, the operating parameters of the second fan and the heater are restored to the initial parameters, and the concentration value of the first sensor is read, and odor removal control is performed according to the concentration value.

18. The refrigerator according to claim 17, in, The controller is also configured to: If it is determined that the gas humidity is greater than the first humidity threshold, controlling the second fan to operate at a sixth speed, and controlling the heater to operate at a second heating power, until the gas humidity is less than a preset second humidity threshold; Among them, the sixth speed is greater than the fifth speed, the second heating power is greater than the first heating power, and the second humidity threshold is equal to the absolute value of the difference between the first humidity threshold and the temperature return difference.

19. The refrigerator according to any one of claims 9 to 18, in, The controller is also configured to: If it is determined that the door of the refrigerator is in an open state, the gas regulating device is controlled to stop operating.

20. A method for controlling a refrigerator, in, The refrigerator comprises: A box body, the box body comprising a storage room; A first sensor is disposed in the storage room and is configured to detect the concentration of odorous gas in the storage room, wherein a database including odor-identifiable food materials and odor-unidentifiable food materials is pre-established in the first sensor; an odor purification device, disposed in the storage room and configured to purify odorous gases in the storage room; a camera device, disposed in the storage room and configured to capture images of food stored in the storage room; and a second sensor, disposed at the bottom of the storage chamber and configured to detect the weight of food stored in the storage chamber; Wherein, the method comprises: In response to the food identification instruction, the food image captured by the camera device is obtained, and the type of food in the storage room is determined according to the food image; wherein the food type includes odor-identifiable food and odor-unidentifiable food; If it is determined that the types of food in the storage room are all identifiable food with odor, obtaining the concentration of odorous gas in the current storage room detected by the first sensor; Determining a target operation mode corresponding to the odor purification device according to the odor gas concentration, so as to control the operation of the odor purification device according to the target operation mode; If it is determined that the types of food in the storage room are all food with unrecognizable smells, obtaining the first weight of all food in the storage room currently detected by the second sensor of the weight sensor; Obtaining a target operating mode corresponding to the odor-purifying device according to the first weight; If it is determined that the types of food in the storage room include food with identifiable odors and food with unidentifiable odors, then obtaining a second weight of all food with unidentifiable odors currently in the storage room detected by the second sensor, and a concentration of odorous gas in the current storage room detected by the first sensor; The target operating mode corresponding to the odor purification device is determined according to the second weight and the odor gas concentration.

21. A method for controlling a refrigerator, in, The refrigerator comprises: A box body, the box body comprising a storage room; a door body, configured to open or close the storage chamber; A refrigeration system is disposed in the box and is configured to provide cooling for the storage room by controlling a refrigerant; A first sensor is disposed in the storage room and is configured to detect the concentration of odorous gas in the storage room; a gas detection component, disposed in the storage chamber and configured to obtain gas parameters of the gas flowing through the surface of the first sensor, the gas parameters including at least one of gas temperature, gas humidity or gas flow rate; a gas regulating device, disposed in the storage chamber and close to the first sensor; the gas regulating device is configured to regulate the gas parameter of the gas flowing through the surface of the first sensor; Wherein, the method comprises: When the door body is in a closed state, controlling the operating state of the gas regulating device according to the gas parameters and the on / off state of the refrigeration system; and obtaining the concentration of odorous gas in the storage chamber through the first sensor; If it is determined that the door is open, the gas regulating device is controlled to stop operating.

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