Refrigerator and odor control method

Abstract

The application discloses a refrigerator and a method for controlling odor purification, and the method comprises the following steps: receiving current humidity monitoring data sent by a humidity sensor; determining whether the available volume in the storage compartment changes according to the current humidity monitoring data; if the available volume changes, determining the current available volume according to the current humidity monitoring data; determining the target parameter value of the target operating parameter of the odor purification device according to the current available volume, wherein the target parameter value of the target operating parameter is positively correlated with the current available volume; controlling the odor purification device to operate according to the target parameter value of the target operating parameter, so that the total working time of the odor purification device is positively correlated with the current available volume. According to the embodiment of the application, the parameter value of the target operating parameter of the odor purification device can be dynamically adjusted according to different available volumes in the refrigerator refrigerating chamber, so that the odor purification effect is improved, and the risk of ozone concentration exceeding the standard due to the change of the available volume is effectively avoided.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and more particularly to a refrigerator and a method for odor control. Background Technology

[0002] An odor purifier is a functional module or system installed inside a refrigerator to remove odors and inhibit bacterial growth. Its core function is to eliminate odorous gases (such as ammonia, hydrogen sulfide, and methanethiol) produced by food storage inside the refrigerator, while killing or inhibiting common foodborne pathogens (such as Listeria, Salmonella, and Escherichia coli).

[0003] Currently, most odor purification devices adopt a fixed periodic operation logic. However, this working mode is prone to problems such as excessive ozone or poor sterilization and odor removal capabilities. Summary of the Invention

[0004] This application provides a refrigerator and an odor control method that can improve the odor removal effect while effectively avoiding the risk of ozone concentration exceeding the standard due to changes in available volume.

[0005] In a first aspect, a refrigerator is provided, comprising: a cabinet, in which a storage compartment is formed, the storage compartment including at least a refrigeration compartment;

[0006] Odor purification device, installed in the storage room, is used to purify odorous gases in the storage room;

[0007] A humidity sensor, installed inside the refrigerator compartment, is used to monitor the humidity level inside the refrigerator compartment;

[0008] A humidifier is installed inside the refrigerator compartment to regulate the humidity level inside the refrigerator compartment.

[0009] The controller connected to the odor purification device is configured as follows:

[0010] Receive current humidity monitoring data sent by the humidity sensor, wherein the current humidity monitoring data includes humidity monitoring data in the refrigerator compartment within the current statistical period and within a continuously preset time after the humidifier is started;

[0011] Determine whether the available volume in the storage room has changed based on current humidity monitoring data;

[0012] If changes occur, the current available volume will be determined based on the current humidity monitoring data;

[0013] Based on the currently available volume, determine the target parameter values ​​for the odor purification device's target operating parameters, where the target parameter values ​​are positively correlated with the currently available volume;

[0014] The odor purification device is controlled to operate according to the target parameter values ​​of the target operating parameters so that the total working time of the odor purification device is positively correlated with the current available volume. The total working time refers to the cumulative time that the odor purification device is actually in working state after each triggering start-up operation.

[0015] In some embodiments, when determining whether the available volume inside the storage room has changed based on current humidity monitoring data, the controller is specifically configured to,

[0016] Based on the current humidity monitoring data, determine the current humidity change rate inside the cold storage room;

[0017] If the current rate of change in humidity changes relative to the rate of change in humidity in the cold storage room during the previous statistical period, then it is determined that the available volume in the storage room has changed.

[0018] When determining the available volume based on current humidity monitoring data, the controller is specifically configured as follows:

[0019] The available volume is determined based on the rate of change in humidity.

[0020] In some embodiments, after being triggered to start operation, the odor purification device operates cyclically. The operating parameters of the odor purification device include the number of cycles, working period, short idle period, and long idle period. The number of cycles refers to the number of times the odor purification device alternates between the working period and the short idle period before entering the long idle period. The working period refers to the length of time the odor purification device is continuously in the working state in each cycle. The short idle period refers to the length of time the odor purification device enters the stopped state after completing the working period in each cycle. The long idle period refers to the length of time the odor purification device enters the stopped state after completing several cycles.

[0021] The target operating parameters include the number of cycles and / or the number of working days.

[0022] In some embodiments, the target operating parameters also include a short idle period and a long idle period.

[0023] In some embodiments, when controlling the odor purification device to operate according to the target parameter values ​​of the target operating parameters, the controller is specifically configured to,

[0024] Determine if the odor purification device is currently in a long period of inactivity;

[0025] If there is a long idle period, the target operating parameters of the odor purification device will be updated from the current parameter values ​​to the target parameter values ​​after the current long idle period ends, so that the odor purification device can operate according to the target parameter values.

[0026] If not in a long idle period, the odor purification device continues to operate according to the current parameter value of the target operating parameters until it enters and ends the next long idle period. Then, the target operating parameters of the odor purification device are adjusted from the current parameter value to the target parameter value so that the odor purification device operates according to the target parameter value.

[0027] In some embodiments, the refrigerator further includes a temperature sensor disposed in the refrigerator compartment for monitoring the temperature value inside the refrigerator compartment;

[0028] When determining the target parameter values ​​for the odor purification device's target operating parameters based on the currently available volume, the controller is specifically configured as follows:

[0029] Receive the current refrigeration temperature inside the refrigerator compartment from the temperature sensor;

[0030] Based on the current available volume and the current refrigeration temperature, determine the target parameter values ​​for the target operating parameters.

[0031] In some embodiments, the controller is further configured to:

[0032] After the refrigerator is first powered on, determine the maximum usable volume inside the refrigerator compartment;

[0033] Based on the maximum available volume, determine the baseline parameter values ​​for the operating parameters of the odor purification device;

[0034] Among them, when the odor purification device is running according to the benchmark parameter values ​​of the operating parameters, the total working time of the odor purification device is positively correlated with the maximum available volume, and the total idle time of the odor purification device is positively correlated with the maximum available volume. The total idle time refers to the cumulative time that the odor purification device is actually in a stopped state after each triggering start-up operation.

[0035] In some embodiments, the refrigerator further includes:

[0036] When determining the maximum usable volume within the refrigerator compartment, the controller is specifically configured as follows:

[0037] When the refrigerator is empty, the humidifier is activated, and the humidity monitoring data of the refrigerator compartment is obtained for a continuous preset time after the humidifier is activated.

[0038] Based on the unloaded humidity monitoring data, determine the rate of change of unloaded humidity in the cold storage room;

[0039] The maximum usable volume inside the cold storage compartment is determined based on the rate of change of humidity under no-load conditions.

[0040] Secondly, a method for controlling odor removal is provided, including:

[0041] Receive current humidity monitoring data sent by the humidity sensor, wherein the current humidity monitoring data includes humidity monitoring data in the refrigerator compartment within the current statistical period and within a continuously preset time after the humidifier is started;

[0042] Determine whether the available volume in the storage room has changed based on current humidity monitoring data;

[0043] If changes occur, the current available volume will be determined based on the current humidity monitoring data;

[0044] Based on the currently available volume, determine the target parameter values ​​for the odor purification device's target operating parameters, where the target parameter values ​​are positively correlated with the currently available volume;

[0045] The odor purification device is controlled to operate according to the target parameter values ​​of the target operating parameters so that the total working time of the odor purification device is positively correlated with the current available volume. The total working time refers to the cumulative time that the odor purification device is actually in working state after each triggering start-up operation.

[0046] In the above embodiments, a refrigerator and an odor-removing control method are provided. This method dynamically adjusts the target operating parameters of an odor-removing device for different available volumes within the refrigerator's freezer compartment, thereby improving the odor-removing effect while effectively avoiding the risk of ozone concentration exceeding standards due to changes in available volume. The method includes: receiving current humidity monitoring data from a humidity sensor; determining whether the available volume within the freezer compartment has changed based on the current humidity monitoring data; if it has changed, determining the current available volume based on the current humidity monitoring data; determining the target parameter value of the odor-removing device's target operating parameters based on the current available volume, wherein the target parameter value is positively correlated with the current available volume; and controlling the odor-removing device to operate according to the target parameter value, so that the total working time of the odor-removing device is positively correlated with the current available volume, wherein the total working time refers to the cumulative time the odor-removing device is actually in working condition after each triggering start-up. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the external structure of a refrigerator provided in an embodiment of this application;

[0048] Figure 2 This is another external structural diagram of the refrigerator provided in an embodiment of this application;

[0049] Figure 3 This is an exploded view of the humidification device provided in the embodiments of this application;

[0050] Figure 4 This is another exploded view of the humidification device provided in the embodiments of this application;

[0051] Figure 5 This is a schematic diagram of the air duct in the refrigerator compartment provided in an embodiment of this application;

[0052] Figure 6 This is a block diagram of the internal structure of a refrigerator provided in an embodiment of this application;

[0053] Figure 7 This is a structural block diagram of a controller provided in an embodiment of this application;

[0054] Figure 8 This is a flowchart of an odor control method provided in an embodiment of this application;

[0055] Figure 9 This is a flowchart illustrating an example of odor control provided in an embodiment of this application;

[0056] Figure 10 This is a flowchart of another example of odor control provided in the embodiments of this application. Detailed Implementation

[0057] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0058] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0059] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0060] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0061] To maintain a fresh odor inside the refrigerator, the industry currently mainly uses ion technology, catalytic technology, and electric field-assisted catalytic technology for sterilization and odor removal. Ion technology involves releasing positive and negative ions and strong oxidizing substances from the odor purification device to oxidize odor molecules, thereby mineralizing them and achieving effective odor removal. In this process, ozone is inevitably produced, and excessive ozone release can affect human health, causing discomfort upon inhalation. Therefore, it is necessary to strictly control the amount of ozone produced, which greatly limits the continuous operating time of the odor purification device. Currently, the working mode of odor purification devices is mainly a fixed operating logic, periodically activating the ion module for odor removal: after the user closes the refrigerator door, the odor purification device begins to operate periodically, starting with t1 (working period), stopping with t2 (short idle period, used for ion diffusion), running for M cycles, followed by an idle period T (long idle period, used for ozone decomposition), and then repeating the above process. In other words, the operation of an odor purification device consists of three parts: a working period (t1), a short idle period (t2), and a long idle period (T). The values ​​of t1, t2, and T are fixed during the operation of the odor purification device. This means the odor purification device works for a period and then stops for a period. The stopping process is for ion diffusion, and another important reason is to allow ozone to gradually decompose. However, during refrigerator use, users will put in different amounts of food and items, causing the actual usable volume of the refrigerator compartment to change significantly compared to when it is empty. In the empty state, the volume of the refrigerator compartment (i.e., the maximum usable volume) is fixed. When users put food into the refrigerator compartment, the actual usable volume decreases. With the odor purification device's t1 (M) remaining constant, i.e., the ozone release amount remaining constant, the ozone concentration in the refrigerator compartment satisfies the following relationship: C(O3) = n(O3) / Vm, where C(O3) is the ozone concentration (national standard requires no more than 0.05ppm), n(O3) is the amount of ozone released by the odor purification device, and Vm is the actual usable volume of the refrigerator compartment. As the actual usable volume of the refrigerator compartment decreases, the ozone concentration gradually increases, eventually leading to ozone exceeding the standard. To ensure that users do not experience ozone exceeding the standard during use, the operating time of the odor purification device must be set conservatively, preventing it from fully utilizing its sterilization and deodorization capabilities, thus affecting the refrigerator's deodorization effect. In view of this, this application provides a refrigerator and an odor control method.

[0062] Figure 1 This is a schematic diagram of the external structure of a refrigerator provided in an embodiment of this application. Figure 2 This is another external structural diagram of the refrigerator provided in an embodiment of this application. See also... Figure 1-2The refrigerator 100 of this embodiment has an approximately rectangular shape. The refrigerator includes a cabinet defining a storage space and multiple doors located at the opening of the cabinet. Each door includes a door shell located outside the cabinet, a door inner liner located inside the cabinet, an upper cover, a lower cover, and an insulation layer located between the door shell, door inner liner, upper cover, and lower cover; typically, the insulation layer is filled with foam material. The cabinet has chambers, each including storage space for storing food, etc. These storage spaces can be divided into multiple storage compartments. Depending on their purpose, these compartments can be configured as a refrigerator compartment 10 and a freezer compartment 20, and may also include a variable temperature compartment, a vacuum drawer, a humidifier drawer, etc. Each storage compartment corresponds to one or more doors, for example, in... Figure 1 The upper storage compartment features double doors. These doors can pivot at the opening of the cabinet or open like drawers for drawer-style storage. The compartment also includes a component storage space for refrigerator parts. This component storage space contains a humidifier 30, which can be an ultrasonic humidifier with high humidification efficiency and low noise. Alternatively, the humidifier 30 can utilize pressure atomization, such as a spray nozzle or centrifugal atomizer.

[0063] Figure 3 This is an exploded view of the humidification device provided in the embodiments of this application. Figure 4 This is another exploded view of the humidification device provided in the embodiments of this application. See also... Figure 3-4The humidifier 30 has a mist outlet 301, through which it sprays water mist into the refrigerator compartment 10 to increase the humidity. The humidifier 30 includes a base 310, which is the outer casing of the humidifier 30. The base 310 is fixed to the casing by methods including, but not limited to, screw fixing or snap-fitting. The base 310 forms a mounting cavity 311 for mounting the humidifying component of the humidifier 30. The mounting cavity 311 has a disassembly port 312, through which the humidifying component of the humidifier 30 is installed in the mounting cavity 311, or detached from the mounting cavity 311. The humidifier 30 also includes a water tank 320 with a water inlet 321 for adding water. When water needs to be added, the water tank 320 is pulled out of the mounting cavity 311 through the disassembly port 312. The water box 320 includes a box body 324, a first cover 325, and a second cover 326, wherein a mist outlet 301 is disposed on the box body 324. The box body 324 forms a chamber with a top opening, and a partition is provided on the box body 324 to divide the chamber into different chambers. A non-communicating water storage chamber 322 and an electrical chamber 323 are formed within the box body 324. The water storage chamber 322 is used for water storage, and the electrical chamber 323 is used for installing electrical components. The water storage chamber 322 and the electrical chamber 323 are isolated from each other, reducing the possibility of moisture corrosion of the electrical components. The first cover 325 is placed over the water storage chamber 322, forming a closed water storage space; the second cover 326 is placed on top of the box body 324 to cover the first cover 325, the electrical chamber 323, and the wiring within the box body 324, making the water box 320 appear wireless. The humidifier 30 also includes an atomizer 330, which is installed in the water storage chamber 322 and configured to generate water mist. The mist outlet of the atomizer 330 is opposite to the mist outlet 301, facilitating the spraying of water mist into the refrigerator compartment 10. The humidifier 30 also includes a water tank drive plate 340, which is installed in the electrical cavity 323 and electrically connected to the atomizer 330 to control its operating state. The humidifier 30 also includes an electrical connector 350, located in the electrical cavity 323 and electrically connected to the water tank drive plate 340. Furthermore, the electrical connector 350 is detachably electrically connected to an electrical connection structure within the base 310, which is electrically connected to the refrigerator's power supply and control device via cables. When the water box 320 is installed in the base 310, the electrical connector 350 is electrically connected to the electrical connection structure in the base 310. The power supply of the refrigerator provides power to the atomizer 330 through the electrical connector 350 and the electrical connection structure in the base 310. The refrigerator's control device is electrically connected to the water box drive board 340 through the electrical connector 350 and the electrical connection structure in the base 310, and controls the working state of the atomizer 330.When the water box 320 is removed from the base 310, the electrical connector 350 separates from the electrical connection structure inside the base 310, thereby de-energizing the atomizer 330 and the water box drive board 340 inside the water box 320, allowing for safe water replenishment.

[0064] Figure 5 This is a schematic diagram of the air duct in the refrigerator compartment provided in an embodiment of this application. See also... Figure 5 A gas sensor 11 is installed inside the refrigerator compartment 10 to detect the concentration of odorous gases flowing into the compartment. An odor purification device 12 is installed inside the refrigerator compartment 10 to purify the odors in the compartment. The odor purification device 12 can be, for example, an ion generator, which purifies the air by generating negative and positive ions. A fan 13 is installed inside the refrigerator air duct 101 to circulate the gas within the refrigerator air duct and the refrigerator compartment 10.

[0065] Figure 6 This is a block diagram of the internal structure of a refrigerator provided in an embodiment of this application. See also... Figure 6 The refrigerator also includes a controller 14 and a humidity sensor 15. The controller 14 is connected to the gas sensor 11, the odor purification device 12, and the electrical components in the humidification device. The controller 14 receives the concentration of odor gases in the storage compartment detected by the gas sensor 11. The controller 14 can also control the start and stop of the odor purification device 12.

[0066] Figure 7 This is a structural block diagram of a controller provided in an embodiment of this application. See also... Figure 7The controller 14 includes a processor 141 and a memory 142 storing computer program instructions. The processor 141 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of this disclosure. The memory 142 may include a mass storage device for information or instructions. For example, and not limitingly, the memory 142 may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk drive, a magneto-optical disk drive, magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 142 may include removable or non-removable (or fixed) media. Where appropriate, the memory 142 may be internal or external to the integrated gateway device. In a particular embodiment, the memory 142 is a non-volatile solid-state memory. In a particular embodiment, the memory 142 includes read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (Electrically Programmable ROM, EPROM), an electrically erasable PROM (EEPROM), an electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these. The processor 141 executes the steps of the control method for the refrigerator 100 provided in this disclosure by reading and executing computer program instructions stored in the memory 142. In one example, the controller 14 may further include a transceiver 143 and a bus 144. As shown in the figures, the processor 141, the memory 142, and the communication interface are connected via the bus 144 and communicate with each other. The communication interface can be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.). The communication interface can be a module, circuit, transceiver, or any device capable of communication. Bus 144 includes peripheral component interconnect (PCI) lines or extended industry standard architecture (EISA) buses, etc.Bus 144 can be divided into address bus, data bus, control bus, etc.

[0067] In some embodiments, the controller is configured to:

[0068] Receive current humidity monitoring data sent by the humidity sensor, wherein the current humidity monitoring data includes humidity monitoring data in the refrigerator compartment within the current statistical period and within a continuously preset time after the humidifier is started;

[0069] Determine whether the available volume in the storage room has changed based on current humidity monitoring data;

[0070] If changes occur, the current available volume will be determined based on the current humidity monitoring data;

[0071] Based on the currently available volume, determine the target parameter values ​​for the odor purification device's target operating parameters, where the target parameter values ​​are positively correlated with the currently available volume;

[0072] The odor purification device is controlled to operate according to the target parameter values ​​of the target operating parameters so that the total working time of the odor purification device is positively correlated with the current available volume. The total working time refers to the cumulative time that the odor purification device is actually in working state after each triggering start-up operation.

[0073] In some embodiments, when determining whether the available volume inside the storage room has changed based on current humidity monitoring data, the controller is specifically configured to,

[0074] Based on the current humidity monitoring data, determine the current humidity change rate inside the cold storage room;

[0075] If the current rate of change in humidity changes relative to the rate of change in humidity in the cold storage room during the previous statistical period, then it is determined that the available volume in the storage room has changed.

[0076] When determining the available volume based on current humidity monitoring data, the controller is specifically configured as follows:

[0077] The available volume is determined based on the rate of change in humidity.

[0078] In some embodiments, after being triggered to start operation, the odor purification device operates cyclically. The operating parameters of the odor purification device include the number of cycles, working period, short idle period, and long idle period. The number of cycles refers to the number of times the odor purification device alternates between the working period and the short idle period before entering the long idle period. The working period refers to the length of time the odor purification device is continuously in the working state in each cycle. The short idle period refers to the length of time the odor purification device enters the stopped state after completing the working period in each cycle. The long idle period refers to the length of time the odor purification device enters the stopped state after completing several cycles.

[0079] The target operating parameters include the number of cycles and / or the number of working days.

[0080] In some embodiments, the target operating parameters also include a short idle period and a long idle period.

[0081] In some embodiments, when controlling the odor purification device to operate according to the target parameter values ​​of the target operating parameters, the controller is specifically configured to,

[0082] Determine if the odor purification device is currently in a long period of inactivity;

[0083] If there is a long idle period, the target operating parameters of the odor purification device will be updated from the current parameter values ​​to the target parameter values ​​after the current long idle period ends, so that the odor purification device can operate according to the target parameter values.

[0084] If not in a long idle period, the odor purification device continues to operate according to the current parameter value of the target operating parameters until it enters and ends the next long idle period. Then, the target operating parameters of the odor purification device are adjusted from the current parameter value to the target parameter value so that the odor purification device operates according to the target parameter value.

[0085] In some embodiments, the refrigerator further includes a temperature sensor disposed in the refrigerator compartment for monitoring the temperature value inside the refrigerator compartment;

[0086] When determining the target parameter values ​​for the odor purification device's target operating parameters based on the currently available volume, the controller is specifically configured as follows:

[0087] Receive the current refrigeration temperature inside the refrigerator compartment from the temperature sensor;

[0088] Based on the current available volume and the current refrigeration temperature, determine the target parameter values ​​for the target operating parameters.

[0089] In some embodiments, the controller is further configured to:

[0090] After the refrigerator is first powered on, determine the maximum usable volume inside the refrigerator compartment;

[0091] Based on the maximum available volume, determine the baseline parameter values ​​for the operating parameters of the odor purification device;

[0092] Among them, when the odor purification device is running according to the benchmark parameter values ​​of the operating parameters, the total working time of the odor purification device is positively correlated with the maximum available volume, and the total idle time of the odor purification device is positively correlated with the maximum available volume. The total idle time refers to the cumulative time that the odor purification device is actually in a stopped state after each triggering start-up operation.

[0093] In some embodiments, the refrigerator further includes:

[0094] When determining the maximum usable volume within the refrigerator compartment, the controller is specifically configured as follows:

[0095] When the refrigerator is empty, the humidifier is activated, and the humidity monitoring data of the refrigerator compartment is obtained for a continuous preset time after the humidifier is activated.

[0096] Based on the unloaded humidity monitoring data, determine the rate of change of unloaded humidity in the cold storage room;

[0097] The maximum usable volume inside the cold storage compartment is determined based on the rate of change of humidity under no-load conditions.

[0098] Figure 8 This is a flowchart of an odor control method provided in an embodiment of this application. See also... Figure 8 The specific steps of this method are as follows.

[0099] S810 receives current humidity monitoring data sent by the humidity sensor.

[0100] The current humidity monitoring data includes humidity monitoring data inside the refrigerator compartment within the current statistical period, after the humidifier is turned on and for a continuously preset duration.

[0101] Specifically, humidity monitoring data refers to a series of humidity values ​​collected by a humidity sensor that reflect the humidity status of the air inside the refrigerator compartment. The current humidity monitoring data refers to the humidity monitoring data collected continuously for a preset duration within the current statistical period, starting from the moment the humidifier is activated. It should be noted that the specific value of the preset duration can be set by those skilled in the art according to actual conditions; this application does not limit this, as long as the humidity value inside the refrigerator compartment shows an upward trend within the preset duration.

[0102] S820. Determine whether the available volume in the storage room has changed based on the current humidity monitoring data.

[0103] In some examples, determining whether the available volume in the storage room has changed based on the current humidity monitoring data, and if it has changed, involves: inputting the current humidity monitoring data into a pre-trained machine learning model; obtaining the current available volume output by the machine learning model; and comparing the current available volume with the available volume of the previous statistical period to determine whether the available volume in the storage room has changed.

[0104] For example, the training process of the machine learning model includes: collecting humidity monitoring data for a continuous preset time after the humidifier is turned on under multiple different available volumes as training samples, and using the corresponding available volumes as training labels; performing time-series alignment and feature extraction on the training samples to obtain a humidity dynamic response feature vector; using the humidity dynamic response feature vector and training labels to iteratively train the initial machine learning model until the error between the output volume judgment result and the training label meets the preset convergence condition, thereby obtaining the pre-trained machine learning model.

[0105] In other examples, it is determined whether the available volume in the storage room has changed based on current humidity monitoring data, including: determining the current rate of change of humidity in the cold storage room based on current humidity monitoring data;

[0106] If the current rate of change in humidity changes relative to the rate of change in humidity in the cold storage room during the previous statistical period, then it is determined that the available volume in the storage room has changed.

[0107] The available volume is determined based on current humidity monitoring data, including determining the available volume based on the humidity change rate.

[0108] Specifically, the humidity change rate refers to the magnitude of humidity change within a refrigerator compartment per unit time, reflecting the rate at which humidity rises or falls. The humidity change rate is usually represented by the symbol k, and the unit is %RH / min (percentage change in relative humidity per minute) or %RH / s (percentage change in relative humidity per second). The current humidity change rate refers to the humidity change rate calculated based on the latest acquired humidity monitoring data.

[0109] For example, a linear fit can be performed on the humidity values ​​at each sampling point in the current humidity monitoring data, and the slope of the fitted line (with time on the x-axis and humidity value on the y-axis) can be used as the current humidity change rate. Alternatively, the humidity difference between adjacent sampling points can be calculated and divided by the time interval to obtain the instantaneous humidity change rate, and then the average value can be taken as the current humidity change rate. Or, the humidity values ​​of the first and last sampling points can be directly taken, and the humidity change rate between the two sampling points can be calculated as the current humidity change rate. However, this approach is not limited to these methods.

[0110] Specifically, the humidity difference between the current humidity change rate and the "humidity change rate in the cold storage room during the previous statistical period" is calculated. If the humidity difference is greater than or equal to a preset humidity threshold, it is determined that the usable volume in the storage room has changed. It should be noted that the preset humidity threshold can be set by those skilled in the art according to actual conditions, and this application does not limit it.

[0111] S830. If changes occur, determine the current available volume based on the current humidity monitoring data.

[0112] Specifically, the current usable volume refers to the actual remaining space inside the refrigerator compartment that is not occupied by food or other items and is available for air circulation and storage under the current usage conditions.

[0113] Optionally, determining the current available volume based on the humidity change rate includes: querying a first database to determine the current available volume corresponding to the current humidity change rate, wherein the first database pre-stores the correspondence between humidity change rates and available volumes.

[0114] The construction process of the first database is as follows: For multiple refrigerator samples with different maximum usable volumes, the empty humidity monitoring data of their refrigerator compartments under empty conditions and after the humidifier is turned on is obtained for a continuous preset time. Based on the empty humidity monitoring data, the empty humidity change rate of each refrigerator sample is determined. The empty humidity change rates of multiple refrigerator samples are fitted with their corresponding maximum usable volumes to obtain the correspondence between humidity change rate and usable volume.

[0115]

[0116] in, Usable volume The rate of change of humidity. , , The constants obtained from the fitting are denoted as .

[0117] Of course, for multiple different humidification levels, a correspondence between the humidity change rate and available volume can be established for each humidification level, thus forming a first database. This first database pre-stores the correspondence between humidity change rate, humidification level, and available volume. In this case, determining the current available volume based on the humidity change rate includes: obtaining the current humidification level after the humidifier is started within a preset statistical period; and then querying the first database to determine the current available volume corresponding to the "current humidity change rate and current humidification level." This eliminates the differences in humidity change rate caused by different humidification levels, ensuring that the current available volume can be accurately calculated regardless of the humidification level selected by the user, thereby improving the accuracy of available volume detection.

[0118] Understandably, determining the available volume by querying the first database eliminates the need for real-time calculations of complex models. Simply comparing the current humidity change rate with the first database quickly yields the current available volume, offering advantages such as simplicity, speed, and rapid response.

[0119] It is also understandable that determining whether the available volume in the refrigerator compartment has changed and determining the current available volume based on the current humidity monitoring data does not require additional hardware (such as weight sensors, optical sensors, etc.). It can be achieved using only the refrigerator's existing humidity sensor and humidification device, which has the advantages of low cost, ease of implementation, and no increase in hardware complexity.

[0120] In some embodiments, the refrigerator further includes an optical sensor (such as an infrared array) disposed within the refrigerator compartment. In this case, the optical sensor is controlled to emit and receive reflected signals to scan the space occupancy within the refrigerator compartment; a three-dimensional space occupancy map of the refrigerator compartment is constructed based on the time and intensity of the reflected signals; and the volume of unoccupied space is calculated, which is the currently available volume.

[0121] In other embodiments, the refrigerator further includes a camera device disposed in the refrigerator compartment. In this case, the camera device receives images of the interior of the refrigerator compartment; an image recognition algorithm is used to identify the type, quantity, and location of food and other items, obtaining the identification result; the volume occupied by the food and other items is estimated based on the identification result, and then the currently available volume is calculated.

[0122] S840. Based on the currently available volume, determine the target parameter values ​​for the target operating parameters of the odor purification device.

[0123] Among them, the target parameter value of the target operating parameter is positively correlated with the current available volume.

[0124] Specifically, target operating parameters refer to the operating parameters of an odor purification device that need to be adaptively adjusted based on available volume. Target parameter values ​​refer to the parameter values ​​of the target operating parameters determined after adjustment based on the current available volume.

[0125] In some embodiments, after being triggered to start operation, the odor purification device operates cyclically. The operating parameters of the odor purification device include the number of cycles, working period, short idle period, and long idle period. The number of cycles refers to the number of times the odor purification device alternates between the working period and the short idle period before entering the long idle period. The working period refers to the length of time the odor purification device is continuously in the working state in each cycle. The short idle period refers to the length of time the odor purification device enters the stopped state after completing the working period in each cycle. The long idle period refers to the length of time the odor purification device enters the stopped state after completing several cycles.

[0126] The target operating parameters include the number of cycles and / or the operating period. The number of cycles is positively correlated with the available volume, and the operating period is positively correlated with the available volume.

[0127] Further optional target operating parameters include short idle period and long idle period, with short idle period being positively correlated with available capacity and long idle period being positively correlated with available capacity.

[0128] Specifically, the activation and operation triggering conditions of the odor purification device include, but are not limited to, at least one of the following: the refrigerator door is closed, the odor concentration is greater than the preset odor concentration threshold, the timer trigger time is reached, or the user receives a start command triggered by the terminal device or the refrigerator control panel, but are not limited to these.

[0129] Specifically, after each odor purification device is triggered and started, it runs for M cycles in an alternating pattern of working period t1 and short idle period t2, followed by a long idle period T, and the above cycle is repeated after the long idle period T ends. The short idle period t2 is used to briefly stop after each working period to prevent the ozone concentration from continuously accumulating and exceeding the standard, and to allow ions to diffuse fully; the long idle period T is used to stop for a long time after completing M cycles, allowing the ozone to fully decay (e.g., decay to near zero concentration).

[0130] Understandably, by setting a positive correlation between the number of cycles and the available volume—meaning more cycles are needed when the available volume is larger and fewer cycles are needed when the available volume is smaller—sufficient cycles can be used to ensure purification effectiveness when the available volume is large, while reducing the number of cycles when the available volume is small prevents ozone from accumulating and exceeding the standard due to the reduced available space. This achieves a dynamic balance between purification effectiveness and safety, fully utilizing the odor purification device's sterilization and deodorization capabilities while reducing the risk of ozone concentration exceeding the standard. The same principle applies to the operating period, which will not be elaborated here.

[0131] It's also understandable that by setting a positive correlation between the short idle period and the available volume—that is, setting a longer short idle period when the available volume is larger and a shorter short idle period when the available volume is smaller—more sufficient ion diffusion time can be provided when the available volume is large and the number of cycles and / or working periods are large. This also lengthens the time interval between two working periods of the odor purification device, preventing the continuous accumulation of ozone concentration exceeding the standard. Simultaneously, when the available volume is small and the number of cycles and / or working periods are small, shortening the short idle period increases the working frequency of the odor purification device, thereby achieving a dynamic balance between purification effect and safety. This fully utilizes the sterilization and deodorization capabilities of the odor purification device while reducing the risk of ozone concentration exceeding the standard. The same principle applies to long idle periods, which will not be elaborated here.

[0132] In some examples, the target parameter values ​​of the target operating parameters of the odor purification device are determined based on the current available volume, including: determining the target parameter values ​​of the target operating parameters corresponding to the current available volume by querying a second database, wherein the second database pre-stores the correspondence between the parameter values ​​of the target operating parameters and the available volume.

[0133] Specifically, when the target operating parameters include the number of cycles, working period, short idle period, and long idle period, the construction process of the second database is as follows: Select the refrigerator with the largest usable volume in the current product lineup as the sample. For the multiple usable volumes of this refrigerator sample, conduct the following tests: With the odor sensor located on the upper shelf, test the first duration W1 of continuous operation of the odor purification device until the ozone concentration reaches a preset concentration threshold (e.g., 0.05 ppm according to national standards); with the odor sensor located at the air vent, test the second duration W2 of continuous operation of the odor purification device until the ozone concentration reaches the preset concentration threshold; test the third duration W3 of ozone concentration decaying from the preset concentration threshold to 0; use W2 as the working period t1, 0.5 * W1 as the short idle period t2, round W1 / W2 as the number of cycles M, and W3 as the idle period T; map the multiple usable volumes to their corresponding "parameter values ​​of the number of cycles, working period, short idle period, and long idle period" to obtain the correspondence between the parameter values ​​of the target operating parameters and the usable volumes. It should be noted that during the testing process, the available volume of the refrigerator can be adjusted by adding vegetables (including but not limited to lettuce, spinach, and bok choy), but it is not limited to this.

[0134] For example, the correspondence between the parameter values ​​of the target operating parameters and the available volume is shown in Table 1, where Vmax is the maximum available volume of the refrigerator sample.

[0135] Table 1

[0136]

[0137] Of course, the second database can also only record the "target operating parameter values" corresponding to the tested available volumes. For untested available volumes, the target operating parameter values ​​can be calculated by interpolation using the "target operating parameter values" corresponding to adjacent tested available volumes. Specifically, if the current available volume is between two adjacent sampled available volumes V1 and V2 in the second database, the target operating parameter values ​​corresponding to the current available volume are calculated using linear interpolation, polynomial interpolation, or spline interpolation methods based on the target operating parameter values ​​corresponding to V1 and V2.

[0138] In other examples, the refrigerator also includes a temperature sensor located in the refrigerator compartment for monitoring the temperature value inside the refrigerator compartment;

[0139] Based on the currently available volume, determine the target parameter values ​​for the target operating parameters of the odor purification device, including: receiving the current refrigeration temperature inside the refrigerator compartment from the temperature sensor;

[0140] Based on the current available volume and the current refrigeration temperature, determine the target parameter values ​​for the target operating parameters.

[0141] Specifically, for multiple different refrigeration temperatures, the correspondence between the target operating parameters and the available volume at each refrigeration temperature can be constructed, thereby forming a second database. That is, the second database pre-stores the correspondence between the target operating parameters, the available volume, and the refrigeration temperature.

[0142] Accordingly, based on the current available volume and the current refrigeration temperature, the target parameter values ​​of the target operating parameters are determined, including: by querying the second database, determining the target parameter values ​​of the target operating parameters corresponding to the current available volume and the current refrigeration temperature.

[0143] Specifically, the current refrigeration temperature refers to the temperature value inside the refrigerator's refrigeration compartment at the current moment or within the current statistical period.

[0144] Specifically, considering that different refrigeration temperatures have a significant impact on W3, the correspondence between the target operating parameters and the available volume at each refrigeration temperature can be constructed separately for multiple different refrigeration temperatures (see the full text, which will not be repeated here).

[0145] For example, the correspondence between the target operating parameter values, the refrigerator compartment temperature, and the available volume is shown in Table 2, where Vmax is the maximum available volume of the refrigerator sample. Thus, first, the current refrigerator temperature is obtained, and the preset temperature range within that range is determined. Then, the correspondence between the target operating parameter values ​​and the available volume within that preset temperature range is retrieved. Next, based on the current actual available volume, the correspondence between the target operating parameter values ​​and the available volume within that preset temperature range is queried to determine the target parameter values. Of course, for untested available volumes, interpolation can be performed using the target operating parameter values ​​corresponding to adjacent tested available volumes.

[0146] Table 2

[0147]

[0148] Understandably, determining the target operating parameters by querying a second database eliminates the need for real-time calculations of complex models. Simply comparing the current available volume and refrigeration temperature with the second database quickly yields the target operating parameters, offering advantages such as simplicity, speed, and rapid response. Furthermore, it mitigates the discrepancies in target operating parameters caused by varying refrigeration temperatures, ensuring accurate back-calculation of target operating parameters regardless of the user's chosen refrigeration setting. This enhances the sterilization and purification effect of the odor purification device and reduces the risk of ozone exceeding limits.

[0149] S850, control the odor purification device to operate according to the target parameter value of the target operating parameters, so that the total working time of the odor purification device is positively correlated with the current available volume.

[0150] The total working time refers to the cumulative time that the odor purification device actually works after each triggering and start-up operation.

[0151] Specifically, the total working time refers to the cumulative time that the odor purification device is actually in working condition from the time it is triggered to start operation until the end of the current purification process.

[0152] The conditions for the end of this purification process include, but are not limited to, at least one of the following: the odor concentration decreases to a preset threshold, the timer ends at that moment, the user receives an end command triggered by the terminal device or the refrigerator's control panel, the preset number of operating cycles is completed, and the refrigerator door is opened.

[0153] For example, if the odor purification device operates on a cycle after being triggered to start, the total working time is the working period multiplied by the total number of operating cycles in this purification process.

[0154] Specifically, the target parameter value for controlling the odor purification device to operate according to the target operating parameters refers to the value at which the odor purification device operates according to the target operating parameters after it is triggered and started.

[0155] It is understandable that the total working time of the odor purification device in each purification process is positively correlated with the current available volume. When the available volume is large, it can automatically extend the purification time to ensure sufficient sterilization and odor removal effect; when the available volume is small, it can automatically shorten the purification time to avoid ozone accumulation exceeding the standard due to the shrinking space, thereby achieving a dynamic balance between purification effect and safety of use.

[0156] In some embodiments, controlling the odor purification device to operate according to the target parameter value of the target operating parameters includes: determining whether the odor purification device is currently in a long idle period;

[0157] If there is a long idle period, the target operating parameters of the odor purification device will be updated from the current parameter values ​​to the target parameter values ​​after the current long idle period ends, so that the odor purification device can operate according to the target parameter values.

[0158] If not in a long idle period, the odor purification device continues to operate according to the current parameter value of the target operating parameters until it enters and ends the next long idle period. Then, the target operating parameters of the odor purification device are adjusted from the current parameter value to the target parameter value so that the odor purification device operates according to the target parameter value.

[0159] Specifically, if a long idle period is detected, the target operating parameters will not be updated immediately. Instead, the new target operating parameters (i.e., the target parameter values) will be loaded after the long idle period ends naturally. If a working period or a short idle period is detected, the operating status will continue to be monitored. The new target operating parameters (i.e., the target parameter values) will be loaded after all remaining working periods and short idle periods have been completed and the large cycle has been completed.

[0160] Understandably, this avoids interrupting the current operating logic of the odor purification device during working periods or short idle periods, ensuring that each complete processing cycle is completed under constant parameter values, thereby guaranteeing the integrity of the odor purification process and the consistency of its effect. Furthermore, updating the target operating parameter values ​​after the long idle period avoids operational logic disorder caused by sudden changes in the target operating parameter values ​​during operation, achieving seamless switching of the target operating parameter values ​​and improving the operational stability of the odor purification device.

[0161] Optionally, determining whether the odor purification device is currently in a long idle period also includes: determining whether the odor purification device has been triggered to start operation;

[0162] If the odor purification device is not triggered to start operation, the target operating parameters will be updated from the current parameter values ​​to the target parameter values ​​so that the odor purification device will operate according to the target parameter values ​​after subsequent startup.

[0163] If the device has been triggered to start running, determine whether the odor purification device is currently in a long idle period.

[0164] This application embodiment can dynamically adjust the target operating parameters of the odor purification device for different available volumes in the refrigerator compartment, thereby improving the odor removal effect while effectively avoiding the risk of ozone concentration exceeding the standard due to changes in available volume.

[0165] In another embodiment of this application, before obtaining the current available volume in the refrigerator compartment, the method further includes: obtaining the maximum available volume in the refrigerator compartment after the refrigerator is first powered on;

[0166] Based on the maximum available volume, determine the baseline parameter values ​​for the operating parameters of the odor purification device;

[0167] Among them, when the odor purification device is running according to the benchmark parameter values ​​of the operating parameters, the total working time of the odor purification device is positively correlated with the maximum available volume, and the total idle time of the odor purification device is positively correlated with the maximum available volume. The total idle time refers to the cumulative time that the odor purification device is actually in a stopped state after each triggering start-up operation.

[0168] In some embodiments, obtaining the maximum usable volume inside the refrigerator compartment includes: reading locally stored refrigerator factory parameters and extracting the maximum usable volume from them.

[0169] In other embodiments, obtaining the maximum usable volume inside the refrigerator compartment includes: when the refrigerator is empty, activating the humidifier and obtaining the empty humidity monitoring data inside the refrigerator compartment for a continuous preset period of time after the humidifier is activated.

[0170] Based on the unloaded humidity monitoring data, determine the rate of change of unloaded humidity in the cold storage room;

[0171] The maximum usable volume inside the cold storage compartment is determined based on the rate of change of humidity under no-load conditions.

[0172] Specifically, the no-load humidity monitoring data refers to the humidity monitoring data collected continuously for a preset duration from the moment the humidifier is started when the refrigerator is no-load.

[0173] Specifically, the calculation method for the no-load humidity change rate is similar to that for the current humidity change rate, and will not be repeated here.

[0174] Optionally, the maximum usable volume inside the refrigerator can be determined based on the rate of change of humidity under no-load conditions, including: determining the maximum usable volume corresponding to the rate of change of humidity under no-load conditions by querying a first database.

[0175] In some embodiments, determining the baseline parameter values ​​of the operating parameters of the odor purification device based on the maximum available volume includes: determining the baseline parameter values ​​of the operating parameters corresponding to the maximum available volume by querying a third database, wherein the third database pre-stores the correspondence between the parameter values ​​of the operating parameters and the available volume.

[0176] Specifically, the operating parameters include the number of cycles, working period, short idle period, and long idle period.

[0177] Specifically, the construction process of the third database is similar to that of the second database described above, and will not be repeated here.

[0178] In other embodiments, a correspondence between the parameter values ​​of the operating parameters and the available volume at each different refrigeration temperature can be constructed to form a third database, which pre-stores the correspondence between the parameter values ​​of the operating parameters, the available volume, and the refrigeration temperature.

[0179] Accordingly, based on the maximum available volume, the baseline parameter values ​​for the operating parameters of the odor purification device are determined, including: receiving the current refrigeration temperature in the refrigerator compartment from the temperature sensor;

[0180] By querying a third database, baseline parameter values ​​for the operating parameters corresponding to the maximum available volume and the current refrigeration temperature are determined.

[0181] Specifically, when the target operating parameters only include the number of cycles, the working period, short idle period, and long idle period do not change with the current available capacity and always remain at the corresponding baseline parameter values; when the target operating parameters only include the working period, the number of cycles, short idle period, and long idle period do not change with the current available capacity and always remain at the corresponding baseline parameter values; when the target operating parameters only include the number of cycles and the working period, the short idle period and long idle period do not change with the current available capacity and always remain at the corresponding baseline parameter values.

[0182] Understandably, when the refrigerator is first powered on, the baseline parameter value of the odor purification device is intelligently matched based on the empty humidity monitoring data in the refrigerator compartment. This allows the target operating parameters to be dynamically adjusted based on the real-time load during subsequent actual use of the refrigerator, adapting to different available volume states.

[0183] To illustrate the odor control method provided in this application in detail, a specific example is provided below. Figure 9 This is a flowchart illustrating an example of odor control provided in an embodiment of this application. Figure 10 This is a flowchart of another example of odor control provided in the embodiments of this application, see [link to flowchart]. Figure 9 and Figure 10When the refrigerator is first powered on and the water tank is filled, the humidity sensor detects the humidity value inside the refrigerator compartment when the refrigerator is empty, and records it as R0. The humidification device then starts, and after time t0, the humidity value inside the refrigerator compartment is obtained again, recorded as R1. The rate of change of humidity during this process is k0 = (R1 - R0) / t0. Comparing this rate of change with the built-in first database yields the usable volume of the empty refrigerator compartment under this rate of change, i.e., the maximum usable volume of the refrigerator compartment. Subsequently, comparing the maximum usable volume with a third database yields the baseline parameter values ​​for the odor purification device's operating parameters when the refrigerator is empty, and this is defined as the refrigerator's default operating logic. The refrigerator then operates according to the default working logic described above. It then checks the humidity change rate in the refrigerator compartment every hour. When the humidity change rate increases, it indicates that the usable volume in the refrigerator compartment has changed, meaning that the user has put food in. The humidity change rate is compared with the first database to obtain the current usable volume. Then, the current usable volume is compared with the second database to obtain the target parameter value of the odor purification device, thus avoiding ozone concentration exceeding the standard due to volume changes.

[0184] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0185] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: A box, in which a storage room is formed, the storage room including at least a cold storage room; An odor purification device is installed in the storage room to purify odorous gases in the storage room. A humidity sensor is installed inside the refrigerator compartment to monitor the humidity level inside the refrigerator compartment. A humidifier is installed in the refrigerator compartment to adjust the humidity level inside the refrigerator compartment. The controller connected to the odor purification device is configured as follows: Receive current humidity monitoring data sent by the humidity sensor, wherein the current humidity monitoring data includes humidity monitoring data in the refrigerator compartment within the current statistical period and within a continuously preset time after the humidifier is started; Determine whether the available volume inside the refrigerator has changed based on the current humidity monitoring data; If a change occurs, the current available volume is determined based on the current humidity monitoring data, wherein the current available volume refers to the actual remaining space volume of the refrigerator compartment for storage under the current usage state; Based on the currently available volume, target parameter values ​​for the odor purification device's target operating parameters are determined. These target parameter values ​​are positively correlated with the currently available volume. The target operating parameters include working period, number of cycles, short idle period, and long idle period. After being triggered to start operation, the odor purification device operates cyclically. The number of cycles refers to the number of times the odor purification device alternates between the working period and the short idle period before entering the long idle period. The working period refers to the duration of continuous operation of the odor purification device in each cycle. The short idle period refers to the duration of time the odor purification device enters a stopped state after completing its working period in each cycle. The long idle period refers to the duration of time the odor purification device enters a stopped state after completing the specified number of cycles. The odor purification device is controlled to operate according to the target parameter value of the target operating parameters, so that the total working time of the odor purification device is positively correlated with the current available volume, wherein the total working time refers to the cumulative time that the odor purification device is actually in working state after each triggering start-up operation; When controlling the odor purification device to operate according to the target parameter value of the target operating parameters, the controller is specifically configured to, Determine whether the odor purification device is currently in the large idle period; If the device is in the long idle period, after the current long idle period ends, the target operating parameter of the odor purification device will be updated from the current parameter value to the target parameter value, so that the odor purification device operates according to the target parameter value. If not in the aforementioned long idle period, the odor purification device is controlled to continue operating according to the current parameter value of the target operating parameter until entering and ending the next long idle period. Then, the target operating parameter of the odor purification device is adjusted from the current parameter value to the target parameter value so that the odor purification device operates according to the target parameter value.

2. The refrigerator according to claim 1, characterized in that, When determining whether the available volume inside the refrigerator has changed based on the current humidity monitoring data, the controller is specifically configured to: Based on the current humidity monitoring data, determine the current humidity change rate inside the refrigerator compartment; If the current humidity change rate changes relative to the humidity change rate in the refrigerator compartment during the previous statistical period, then it is determined that the available volume in the refrigerator compartment has changed. When determining the currently available volume based on the current humidity monitoring data, the controller is specifically configured to, The currently available volume is determined based on the humidity change rate.

3. The refrigerator according to claim 1, characterized in that, The refrigerator also includes: A temperature sensor is installed inside the refrigerator compartment to monitor the temperature value inside the refrigerator compartment; When determining the target parameter values ​​of the target operating parameters of the odor purification device based on the currently available volume, the controller is specifically configured as follows: Receive the current refrigeration temperature inside the refrigerator compartment sent by the temperature sensor; The target parameter value is determined based on the current available volume and the current refrigeration temperature.

4. The refrigerator according to any one of claims 1-3, characterized in that, Before obtaining the current available volume inside the refrigerator compartment, the controller is also configured to: After the refrigerator is powered on for the first time, obtain the maximum usable volume in the refrigerator compartment; Based on the maximum available volume, determine the baseline parameter values ​​for the operating parameters of the odor purification device; When the odor purification device operates according to the reference parameter value of the operating parameters, the total working time of the odor purification device is positively correlated with the maximum available volume, and the total idle time of the odor purification device is positively correlated with the maximum available volume. The total idle time refers to the cumulative time that the odor purification device is actually in a stopped state after each triggering start-up operation.

5. The refrigerator according to claim 4, characterized in that, The refrigerator also includes: When obtaining the maximum usable volume inside the refrigerator compartment, the controller is specifically configured as follows: When the refrigerator is in an unloaded state, the humidification device is activated, and the unloaded humidity monitoring data of the refrigerator compartment is acquired within a continuously preset time after the humidification device is activated. Based on the empty humidity monitoring data, determine the rate of change of empty humidity in the cold storage room; The maximum usable volume inside the refrigerator is determined based on the rate of change of humidity under no-load conditions.

6. A method for controlling odor removal, characterized in that, include: Receive current humidity monitoring data sent by the humidity sensor, wherein the current humidity monitoring data includes humidity monitoring data in the refrigerator compartment within the current statistical period and within a continuously preset time after the humidifier is started; Determine whether the available volume inside the refrigerator has changed based on the current humidity monitoring data; If a change occurs, the current available volume is determined based on the current humidity monitoring data, wherein the current available volume refers to the actual remaining space volume of the refrigerator compartment for storage under the current usage state; Based on the currently available volume, target parameter values ​​for the odor purification device's target operating parameters are determined. These target parameter values ​​are positively correlated with the currently available volume. The target operating parameters include working period, number of cycles, short idle period, and long idle period. After being triggered and started, the odor purification device operates cyclically. The number of cycles refers to the number of times the odor purification device alternates between the working period and the short idle period before entering the long idle period. The working period refers to the duration of continuous operation of the odor purification device in each cycle. The short idle period refers to the duration of time the odor purification device enters a stopped state after completing its working period in each cycle. The long idle period refers to the duration of time the odor purification device enters a stopped state after completing the specified number of cycles. The odor purification device is controlled to operate according to the target parameter value of the target operating parameters, so that the total working time of the odor purification device is positively correlated with the current available volume, wherein the total working time refers to the cumulative time that the odor purification device is actually in working state after each triggering start-up operation; The control of the odor purification device to operate according to the target parameter value of the target operating parameters includes: Determine whether the odor purification device is currently in the large idle period; If the device is in the long idle period, after the current long idle period ends, the target operating parameter of the odor purification device will be updated from the current parameter value to the target parameter value, so that the odor purification device operates according to the target parameter value. If not in the aforementioned long idle period, the odor purification device is controlled to continue operating according to the current parameter value of the target operating parameter until entering and ending the next long idle period. Then, the target operating parameter of the odor purification device is adjusted from the current parameter value to the target parameter value so that the odor purification device operates according to the target parameter value.

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