Refrigerator and humidifying method

Abstract

The invention provides a refrigerator and a humidifying method. The refrigerator comprises a refrigerating chamber and a humidifying device, the atomization humidifier is arranged in the refrigerating chamber and used for spraying water mist into the refrigerating chamber so as to increase the humidity in the refrigerating chamber; the controller is configured to obtain the distance between the food materials and a mist outlet of the atomization humidifier; the target working voltage of the atomization humidifier is calculated according to the distance between the food materials and a mist outlet of the atomization humidifier; wherein the target working voltage is in direct proportion to the water mist spraying distance of the atomization humidifier; and the atomization humidifier is controlled to work at the target working voltage. When the distance between the food material and the mist outlet of the atomization humidifier is small, the atomization humidifier works at the low target working voltage, and therefore the phenomenon that water mist is gathered on the surface of the food material to form water drops due to short-distance spraying is reduced.

Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and particularly relates to a refrigerator and a humidification method. Background Technology

[0002] As modern consumers increasingly demand higher quality food preservation, refrigerator compartment environmental control technology is facing new challenges. Traditional refrigerators, which rely on low temperatures to slow spoilage, are no longer sufficient to meet consumers' demands for refined preservation indicators such as the moisture content of fruits and vegetables and the firmness of leafy greens. Studies show that when the humidity in the refrigerator compartment is below 70%, leafy green vegetables can lose up to 15% of their moisture within 24 hours, and the skin of berries like strawberries wrinkles three times faster. This not only accelerates the loss of nutrients but also directly affects the taste and commercial value of the food.

[0003] Currently, humidifiers can increase the humidity inside a refrigerator, but the water mist they produce easily forms water droplets on the surface of food. These droplets not only hinder food storage but also negatively impact the user experience. Therefore, maintaining high humidity inside the refrigerator while minimizing water droplet formation on food surfaces is a pressing issue that needs to be addressed. Summary of the Invention

[0004] This application provides a refrigerator and a humidification method to solve the problem that increasing the humidity in the refrigerator's cold storage compartment can easily cause water droplets to form on the surface of food.

[0005] In a first aspect, embodiments of this application provide a refrigerator, comprising: Refrigeration compartment; A misting humidifier is installed inside the refrigerator compartment to spray water mist into the refrigerator compartment to increase the humidity inside the refrigerator compartment; The controller is configured as follows: Obtain the distance between the food and the mist outlet of the humidifier; The target operating voltage of the humidifier is calculated based on the distance between the food ingredient and the mist outlet of the humidifier; wherein, the target operating voltage is proportional to the water mist spraying distance of the humidifier. The atomizing humidifier is controlled to operate at the target operating voltage.

[0006] This application embodiment calculates the target operating voltage of the atomizing humidifier by obtaining the distance between the food and the mist outlet of the atomizing humidifier. When the distance between the food and the mist outlet of the atomizing humidifier is close, the atomizing humidifier operates at a lower target operating voltage, thereby reducing the phenomenon of water mist accumulating on the surface of the food and forming water droplets due to close-range spraying. When the distance between the food and the mist outlet of the atomizing humidifier is far, the atomizing humidifier operates at a higher target operating voltage, thereby increasing the amount of water mist sprayed, accelerating the humidification speed, and helping to preserve the freshness of the food.

[0007] In one possible implementation of the first aspect, a distance acquisition device or an image acquisition device is also provided in the refrigeration compartment; When the controller performs the step of obtaining the distance between the food ingredient and the mist outlet of the atomizing humidifier, it is specifically configured as follows: Acquire the first image captured by the image acquisition device; Based on the first image, calculate the distance between the food item and the mist outlet of the humidifier; or... The distance between the food sample collected by the distance collection device and the mist outlet of the atomizing humidifier is obtained.

[0008] This embodiment can obtain the distance between the food and the mist outlet of the atomizing humidifier by using an image acquisition device or distance acquisition device installed in the refrigerator, thereby providing a basis for determining the target operating voltage of the atomizing humidifier.

[0009] In one possible implementation of the first aspect, the controller, when performing the step of calculating the target operating voltage of the humidifier based on the distance between the food ingredient and the mist outlet of the humidifier, is specifically configured to: Obtain a first lookup table; the first lookup table is used to reflect at least the correspondence between the target operating voltage and the water mist spraying distance range; The target operating voltage of the atomizing humidifier is calculated based on the first lookup table and the distance between the food ingredient and the mist outlet of the atomizing humidifier.

[0010] In this embodiment, since the first lookup table pre-establishes the correspondence between the target working voltage and the water mist spraying distance range, the controller does not need to calculate or deduce the correlation logic between the two in real time. It only needs to retrieve the first lookup table and combine it with the distance between the food and the mist outlet to quickly calculate the target working voltage, thus shortening the control response time.

[0011] In one possible implementation of the first aspect, the controller, when performing the step of calculating the target operating voltage of the humidifier based on the distance between the food ingredient and the mist outlet of the humidifier, is specifically configured to: The target operating voltage of the humidifier is calculated based on the first preset formula and the distance between the food ingredient and the mist outlet of the humidifier; the first preset formula is: V = (yb) / k1; Where: y is the spray distance of the atomizing humidifier, k1 is a coefficient, V is the target operating voltage, and b is a constant.

[0012] This embodiment can quickly calculate the target operating voltage of the atomizing humidifier using a first preset formula preset in the controller.

[0013] In one possible implementation of the first aspect, a humidity sensor is further provided in the refrigerator compartment for collecting the humidity inside the refrigerator compartment; The controller is also configured to: Obtain the target humidity range of the refrigerator compartment; The humidity inside the refrigerator is periodically acquired by the humidity sensor at preset time intervals to obtain a first humidity level. The operating state of the atomizing humidifier is controlled according to the first humidity and the target humidity range, so that the first humidity is maintained within the target humidity range.

[0014] This embodiment periodically acquires the initial humidity level inside the refrigerator compartment from a humidity sensor. The controller can track the humidity change trend in the refrigerator compartment in real time, avoiding problems of insufficient or excessive humidification caused by lag in humidity monitoring. By dynamically adjusting the working state of the atomizing humidifier in conjunction with the target humidity range, the humidity in the refrigerator compartment can be kept stable within the range suitable for food storage, effectively slowing down the moisture loss of leafy green vegetables and preventing phenomena such as wrinkling of berry skin.

[0015] In one possible implementation of the first aspect, the controller is further configured to: Based on the first image, determine the type of the food ingredient; Based on the type of food ingredient, determine the target humidity range corresponding to the food ingredient.

[0016] This embodiment can use image recognition technology to identify the type of food in the first image, and then determine the target humidity range corresponding to the food, thereby improving the freshness of the food.

[0017] In one possible implementation of the first aspect, the first humidity threshold ≤ the target humidity range ≤ the second humidity threshold; When the controller performs the step of controlling the operating state of the atomizing humidifier based on the first humidity and the target humidity range, it is specifically configured as follows: Obtain a second lookup table; the second lookup table is used to reflect the correspondence between the distance between the food and the mist outlet of the atomizing humidifier and the running time and downtime of the atomizing humidifier in a first humidification cycle when the first humidity is less than the first humidity threshold; and the correspondence between the distance between the food and the mist outlet of the atomizing humidifier and the running time and downtime of the atomizing humidifier in a second humidification cycle when the first humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold; The working state of the atomizing humidifier is controlled based on the distance between the food and the mist outlet of the atomizing humidifier, the first humidity level, the target humidity range, and the second lookup table.

[0018] This embodiment determines the working status of the atomizing humidifier by using a second lookup table, thereby reducing the risk of condensation on the surface of food while ensuring that the humidity in the refrigerator reaches the target humidity range as quickly as possible.

[0019] In one possible implementation of the first aspect, the first humidity threshold ≤ the target humidity range ≤ the second humidity threshold; When the controller performs the step of controlling the operating state of the atomizing humidifier based on the first humidity and the target humidity range, it is specifically configured as follows: When the first humidity is less than the first humidity threshold, the operating time of the atomizing humidifier in a first humidification cycle is calculated according to the second preset formula, and the shutdown time of the atomizing humidifier in a first humidification cycle is calculated according to the third preset formula. When the first humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, the operating time of the atomizing humidifier in a second humidification cycle is calculated according to the fourth preset formula, and the shutdown time of the atomizing humidifier in a second humidification cycle is calculated according to the fifth preset formula. The second preset formula is: t1 = k2 × X + c; Where t1 is the running time within the first humidification cycle, k2 is a coefficient, X is the distance between the food and the mist outlet, and c is a constant; The third preset formula is: t2 = T1 - t1; Where t2 is the downtime during the first humidification cycle, and T1 is the duration of the first humidification cycle; The fourth preset formula is: t3 = t1 / k3; Where t3 is the running time within the second humidification cycle, and k3 is a coefficient; The fifth preset formula is: t4 = T2 - t3; Where t4 is the downtime during the second humidification cycle, and T2 is the duration of the second humidification cycle.

[0020] This embodiment can determine the working state of the atomizing humidifier by using a preset formula in the controller, thereby reducing the risk of condensation on the surface of food while ensuring that the humidity in the refrigerator reaches the target humidity range as quickly as possible.

[0021] In one possible implementation of the first aspect, the controller is further configured to: If the distance between the food and the mist outlet of the humidifier is less than a first distance threshold, the humidifier is controlled to stop and a prompt message is issued and / or the machine is shut down.

[0022] This embodiment can send a prompt message when it detects that the distance between the food and the mist outlet of the humidifier is less than a first distance threshold, so as to remind the user that the food placement is obstructing the normal function of the humidifier and suggest adjusting the food position, thereby reducing the risk of condensation on the food surface.

[0023] In one possible implementation of the first aspect, the atomizing humidifier includes: A housing, on which the mist outlet is provided; A water storage box is located inside the housing; The atomizing plate is located inside the housing; The atomizing plate is disposed at the mist outlet so that the water mist generated by the atomizing plate is sprayed into the refrigerator compartment through the mist outlet.

[0024] This embodiment increases the water storage capacity of the water storage box by shortening the distance between the atomizing plate and the mist outlet.

[0025] Secondly, embodiments of this application provide a humidification method applied to a refrigerator, the refrigerator being used to perform the steps executed by the controller in the refrigerator as described in any of the first aspects.

[0026] Thirdly, embodiments of this application provide a refrigerator, including: The acquisition unit is used to acquire the distance between the food and the mist outlet of the atomizing humidifier; The calculation unit is used to calculate the target operating voltage of the atomizing humidifier based on the distance between the food ingredient and the mist outlet of the atomizing humidifier; wherein the target operating voltage is proportional to the water mist spraying distance of the atomizing humidifier; A control unit is used to control the atomizing humidifier to operate at the target operating voltage.

[0027] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method as described in any one of the second aspects.

[0028] Fifthly, embodiments of this application provide a computer program product that, when run on a refrigerator, causes the refrigerator to perform the method described in any one of the second aspects above.

[0029] It is understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here.

[0030] The beneficial effects of this application embodiment compared with the prior art are as follows: This application embodiment obtains the distance between the food and the mist outlet of the atomizing humidifier, and then calculates the target operating voltage of the atomizing humidifier; when the distance between the food and the mist outlet of the atomizing humidifier is close, the atomizing humidifier operates at a lower target operating voltage, thereby reducing the phenomenon of water mist accumulating on the surface of the food and forming water droplets due to close-range spraying; when the distance between the food and the mist outlet of the atomizing humidifier is far, the atomizing humidifier operates at a higher target operating voltage, thereby increasing the water mist spray volume, accelerating the humidification speed, and benefiting the preservation of food. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of a refrigerator disclosed in the prior art is shown; Figure 2 A schematic diagram of the structure of a prior art atomizing humidifier is shown; Figure 3 This is a schematic diagram of the structure of a refrigerator provided in one embodiment of this application; Figure 4 This is a schematic diagram of the structure of an atomizing humidifier and an image acquisition device provided in one embodiment of this application, installed on the door of a refrigerator compartment; Figure 5 This is a schematic diagram of the structure of an atomizing humidifier and a distance sensing device provided in an embodiment of this application, installed on the door of a refrigerator compartment; Figure 6 This is a schematic diagram of the structure of the atomizing humidifier and distance sensing device provided in another embodiment of this application installed on the door of the refrigerator compartment; Figure 7 This is a schematic flowchart of the humidification method provided in the embodiments of this application; Figure 8 This is another schematic diagram of the humidification method provided in the embodiments of this application; Figure 9 This is another schematic flowchart of the humidification method provided in the embodiments of this application; Figure 10 This is another schematic diagram of the humidification method provided in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of an atomizing humidifier provided in one embodiment of this application; Figure 12 This is a front view of an atomizing humidifier provided in an embodiment of this application; Figure 13 yes Figure 12 Sectional view of AA; Figure 14 This is an exploded structural diagram of an atomizing humidifier provided in one embodiment of this application; Figure 15 This is a schematic diagram of the structure of a refrigeration device with a multi-dimensional collaborative control atomizing humidification device provided in an embodiment of this application; Figure 16 This is a schematic diagram of the structure of a refrigerator provided in one embodiment of this application.

[0033] Explanation of reference numerals in the attached figures: 10-Refrigerator, 11-Refrigerator compartment, 12-Refrigerator compartment door, 13-Shelf, 14-Shelf, 15-Drawer, 16-Storage space, 20-Atomizing humidifier, 21-Shell, 22-Atomizing plate, 23-Mist outlet, 24-Water storage box, 25-Buffer space, 30-Image acquisition device, 40-Distance acquisition device. Detailed Implementation

[0034] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0035] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0036] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0037] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0038] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0040] In the context of humidification and preservation in refrigerator compartments, existing technologies present a key contradiction: on the one hand, to meet the high humidity requirements of food items (such as leafy greens and berries), atomizing humidifiers are needed to increase humidity; on the other hand, atomizing humidifiers are prone to causing water droplets to condense on the surface of food items when the distance between the food and the mist outlet is too close, which is detrimental to food storage and affects the user experience. Furthermore, traditional humidification solutions struggle to dynamically adapt to changes in food placement, failing to balance effective humidification with anti-condensation requirements. Therefore, a technological solution that can dynamically adjust humidification parameters based on the food's location is urgently needed to address these issues.

[0041] Figure 1The diagram illustrates the structure of a refrigerator 10 disclosed in the prior art. In this refrigerator, a mist humidifier 20 is used in the fruit and vegetable drawer 15 of the refrigerator compartment to improve the preservation period of stored fruits and vegetables. The mist humidifier 20 and water storage box 24 are designed on the outside of the drawer 15, at a certain distance from it. The water mist sprayed by the mist humidifier 20 enters the drawer 15 through a perforation. This design wastes refrigerator space and requires openings in the drawer 15, reducing its airtightness, accelerating humidity leakage, and decreasing the humidification effect.

[0042] Figure 2 The diagram shows a schematic of a prior art atomizing humidifier 20. In this type of humidifier 20, the atomizing plate 22 is recessed into the housing 21, away from the mist outlet 23, and an internal buffer space 25 is provided to reduce the speed of the water mist at the outlet 23, thereby reducing condensation on the food surface. However, this design reduces the actual usable space inside the housing 21, and the buffer space 25 reduces the water storage capacity of the water tank 24, leading to increased frequency of water refills by the user.

[0043] To address the aforementioned problems, this application discloses a refrigerator 10, see [link to relevant documentation]. Figure 3 The refrigerator 10 includes: a refrigerator compartment 11; a misting humidifier 20 disposed in the refrigerator compartment 11 for spraying water mist into the refrigerator compartment 11 to increase the humidity in the refrigerator compartment 11; an image acquisition device 30 disposed in the refrigerator compartment 11 for acquiring images in the refrigerator compartment 11; and a controller.

[0044] As an example, the image acquisition device 30 can employ a wide-angle high-definition camera, which can be installed in a location within the cold storage compartment 11 with a wide field of view. For example, such as... Figure 3 As shown, the refrigerator compartment 11 is equipped with at least one partition 13, which divides the refrigerator compartment 11 into multiple storage spaces 16. An image acquisition device 30 can be installed at the bottom of one of the partitions 13, near the refrigerator compartment door 12. The viewing angle of the image acquisition device 30 can cover the food in the storage space 16 where the image acquisition device 30 is located, as well as the mist outlet 23 of the atomizing humidifier 20. The image acquired by the image acquisition device 30 can determine the distance between the food and the mist outlet 23 of the atomizing humidifier 20.

[0045] As another example, see Figure 4 As shown, at least two shelves 14 are provided on the refrigerator compartment door 12. The bottom of the lower shelf 14 is equipped with a mist humidifier 20, and the mist outlet 23 of the mist humidifier 20 faces the refrigerator compartment 11. The bottom of the upper shelf 14 is equipped with an image acquisition device 30, and the viewing angle of the image acquisition device 30 can cover the food in the refrigerator compartment 11 and the mist outlet 23 of the mist humidifier 20.

[0046] In some optional embodiments, this application discloses a refrigerator 10, which includes: a refrigerator compartment 11; an atomizing humidifier 20 disposed in the refrigerator compartment 11 for spraying water mist into the refrigerator compartment 11 to increase the humidity in the refrigerator compartment 11; a distance sensing device 40 disposed in the refrigerator compartment 11 for sensing the distance between food and the mist outlet 23 of the atomizing humidifier 20; and a controller.

[0047] As an example, see Figure 5 At least one shelf 14 is provided on the refrigerator door 12. A mist humidifier 20 is located at the bottom of the shelf 14, with the mist outlet 23 of the mist humidifier 20 facing the refrigerator 11. A distance collection device 40 is located on the side wall of the shelf 14 facing the refrigerator 11. The distance collection device 40 can collect the distance between the food and itself. Since the positions of the distance collection device 40 and the mist outlet 23 of the mist humidifier 20 are fixed, the distance between the food and the mist outlet 23 of the mist humidifier 20 can be calculated.

[0048] As another example, see Figure 6 The distance acquisition device 40 is integrated into the atomizing humidifier 20, and the ranging probe of the distance acquisition device 40 is located at a through hole opened in the housing of the atomizing humidifier 20. Optionally, the distance between the atomizing plate 22 inside the atomizing humidifier 20 and the mist outlet 23 is the same as the distance between the ranging probe of the distance acquisition device 40 and the through hole opened in the housing of the atomizing humidifier 20. In this way, the distance acquired by the distance acquisition device 40 can be equivalent to the distance between the food and the mist outlet 23 of the atomizing humidifier 20.

[0049] Optionally, the distance acquisition device 40 can be a distance sensor, a laser ranging module, a radar module, an infrared sensor, etc.

[0050] As an example, the atomizing humidifier in this application embodiment can be an ultrasonic atomizing humidifier. The ultrasonic atomizing humidifier includes an atomizing plate, which is composed of piezoelectric ceramic and a steel sheet. The piezoelectric ceramic exhibits the piezoelectric effect: it generates high-frequency vibration when a high-frequency voltage is applied. The high-frequency vibration of the piezoelectric ceramic drives the steel sheet to resonate. The steel sheet has tiny micropores distributed on it. The high-frequency vibrating steel sheet strikes the water surface, converting the mechanical energy of the steel sheet into the kinetic energy of the water, which is then rapidly ejected through the micropores to humidify the refrigerator compartment. However, when the atomizing plate sprays water mist at close range onto food, the water mist particles collide with the food surface at high speed, densely, and continuously. Due to the short distance, the water mist does not have time to decelerate and evaporate. Under the impact force, the water mist spreads and rapidly coalesces to form noticeable water droplets. This is why household humidifier manuals usually recommend keeping the mist outlet a certain distance (usually more than 20cm) from furniture, walls, and appliances to avoid direct spraying at close range, which can cause condensation or even water accumulation on the surface. Of course, household humidifiers use atomizing plates with high power and a large water mist spray volume, and require a distance of about 20cm from the atomizing plate to avoid water droplets condensing on the surface of objects. The refrigerator in this embodiment does not require such a large humidification volume, so the atomizing plate with a relatively low power is used.

[0051] Figure 7 This illustration shows a flowchart of a humidification method provided in an embodiment of this application. The controller is configured to execute as follows: Figure 1 The method described.

[0052] S110: Measure the distance between the food and the mist outlet of the atomizing humidifier.

[0053] As an example, an image acquisition device is installed in the cold storage compartment, and correspondingly, S110 specifically includes S111-S112.

[0054] S111: Acquire the first image captured by the image acquisition device.

[0055] For example, the controller controls the image acquisition device to acquire the first image once at a set period (e.g., every 30 minutes), or, after detecting that the refrigerator door is closed, controls the image acquisition device to acquire the first image.

[0056] S112: Calculate the distance between the food and the mist outlet of the atomizing humidifier based on the first image.

[0057] For example, the controller calls a preset image recognition and ranging algorithm, such as a ranging algorithm based on image pixel ratio or a triangulation ranging algorithm combined with camera parameters, to process the first image: First, the food area in the image can be identified by image segmentation technology (excluding non-food objects such as the inner wall of the refrigerator and drawers), and the outline boundary of the food is determined; then, taking the mist outlet of the atomizing humidifier as the reference point (the position of the mist outlet has preset coordinate parameters in the controller), the straight-line distance between the outline boundary of the food and the mist outlet is calculated. This distance is the distance between the food and the mist outlet of the atomizing humidifier, and the calculation result is stored as the distance parameter L.

[0058] As another example, a distance sensing device is installed in the cold storage compartment, and correspondingly, S110 specifically includes S113.

[0059] S113: Obtain the distance between the food sampled by the distance collection device and the mist outlet of the atomizing humidifier.

[0060] For example, when the refrigerator door is detected to be closed, the distance between the food sample collected by the distance collection device and the mist outlet of the atomizing humidifier is activated.

[0061] This embodiment can obtain the distance between the food and the mist outlet of the atomizing humidifier by using an image acquisition device or distance acquisition device installed in the refrigerator, thereby providing a basis for determining the target operating voltage of the atomizing humidifier.

[0062] S120: Calculate the target operating voltage of the humidifier based on the distance between the food and the mist outlet of the humidifier; wherein, the target operating voltage is proportional to the water mist spraying distance of the humidifier.

[0063] As mentioned above, the atomizing plate in a humidifier generates water mist by vibrating a steel plate driven by piezoelectric ceramics. This vibration of the steel plate, driven by the piezoelectric ceramics, is called resonance. The inventors discovered that the steel plate has an optimal resonant frequency. At this optimal frequency, the vibration amplitude of the steel plate is the largest, resulting in greater mist output. Therefore, at the optimal resonant frequency, the initial velocity of the water mist emitted by the atomizing plate is the highest, and the amount of water mist is also greater. When the frequency is higher or lower than the optimal resonant frequency, the initial velocity and amount of water mist decrease. Since the resonance of the steel plate is driven by the piezoelectric ceramics, and the vibration of the piezoelectric ceramics can be adjusted by voltage, the initial velocity and amount of water mist can be changed by adjusting the input voltage of the atomizing plate. A decrease in water mist output and initial velocity visually translates to a shorter spray distance. Conversely, an increase in water mist output and initial velocity visually translates to a longer spray distance.

[0064] It is easy to understand that the target operating voltage is directly proportional to the water mist spraying distance of the atomizing humidifier. This means that when the distance parameter L increases, a higher target operating voltage is matched, which increases the water mist spraying distance, resulting in a larger water mist spray volume and faster humidification. When the distance parameter L decreases, a lower target operating voltage is matched, which shortens the water mist spraying distance and reduces the phenomenon of water mist accumulating on the surface of food and forming water droplets due to close-range spraying.

[0065] S130: Controls the atomizing humidifier to operate at the target operating voltage.

[0066] This application embodiment calculates the target operating voltage of the atomizing humidifier by obtaining the distance between the food and the mist outlet of the atomizing humidifier. When the distance between the food and the mist outlet of the atomizing humidifier is close, the atomizing humidifier operates at a lower target operating voltage, thereby reducing the phenomenon of water mist accumulating on the surface of the food and forming water droplets due to close-range spraying. When the distance between the food and the mist outlet of the atomizing humidifier is far, the atomizing humidifier operates at a higher target operating voltage, thereby increasing the amount of water mist sprayed, accelerating the humidification speed, and helping to preserve the freshness of the food.

[0067] In one alternative implementation, see [link to implementation details]. Figure 8 When the controller executes S120, it is specifically configured to execute S121-S122.

[0068] S121: Obtain the first lookup table; the first lookup table is used to reflect at least the correspondence between the target operating voltage and the water mist spraying distance range.

[0069] After testing the relationship between parameters such as the target operating voltage of the atomizing humidifier and the water mist spray distance (the distance between the furthest point of the water mist spray and the atomizing plate), the inventors obtained the following Table 1 - First Comparison Table: Table 1 - First Comparison Table

[0070] Optionally, the first lookup table can be stored in the controller's storage module for easy access by the controller; or, the first lookup table can be stored in a cloud server, and the controller can retrieve the first lookup table from the cloud server.

[0071] S122: Calculate the target operating voltage of the humidifier based on the first reference table and the distance between the food and the mist outlet of the humidifier.

[0072] It is easy to understand that the controller matches the calculated distance L between the food and the mist outlet with the water mist spray distance range in the first lookup table, thereby calculating the target working voltage; for example, if the distance L between the food and the mist outlet is 6.5cm, then the working voltage (i.e., 7.8V) corresponding to a water mist spray distance of 6cm<y≤7cm is determined as the target working voltage.

[0073] In this embodiment, since the first lookup table pre-establishes the correspondence between the target working voltage and the water mist spraying distance range, the controller does not need to calculate or deduce the correlation logic between the two in real time. It only needs to retrieve the first lookup table and combine it with the distance between the food and the mist outlet to quickly calculate the target working voltage, thus shortening the control response time.

[0074] As another alternative implementation, the controller is specifically configured to execute S123 when executing S120.

[0075] S123: Calculate the target operating voltage of the humidifier based on the first preset formula and the distance between the food and the mist outlet of the humidifier; the first preset formula is: V = (yb) / k1; Where: y is the spray distance of the atomizing humidifier, k1 is a coefficient, V is the target operating voltage, and b is a constant. Optionally, k1 = 0.5 to 1.5, for example, k1 = 0.5, or k1 = 0.8, or k1 = 1, or k1 = 1.2, or k1 = 1.5; optionally, b = -10 to 10, for example, b = -10, or b = -5, or b = 0, or b = 5, or b = 10. Since the voltage of internal refrigerator components is generally between 5 and 12V, if the target operating voltage obtained according to the first preset formula is less than 5V, the target operating voltage of the atomizing humidifier can be determined to be 5V; similarly, if the target operating voltage obtained according to the first preset formula is greater than 12V, the target operating voltage of the atomizing humidifier can be determined to be 12V.

[0076] This embodiment can quickly calculate the target operating voltage of the atomizing humidifier using a first preset formula preset in the controller.

[0077] As an optional implementation, see [link to implementation details]. Figure 9 A humidity sensor is also installed in the refrigerator compartment to collect humidity data. The controller is also configured to execute S140-S160.

[0078] S140: Obtain the target humidity range for the refrigerator compartment.

[0079] As an optional implementation, the target humidity range of the refrigerator compartment is a preset value.

[0080] As an alternative implementation, the target humidity range for the refrigerator compartment is determined based on the type of food. Specifically, image recognition technology can be used to identify the type of food in the first image, and the corresponding target humidity range can be determined based on the type of food. For example, a third reference table between food types and optimal humidity ranges can be pre-established (e.g., leafy greens and berries are suitable for a high humidity range of 90%-95% RH, while root vegetables are suitable for a medium humidity range of 80%-85% RH). The humidity range is matched to the food type in the third reference table, and the matched humidity range is used as the target humidity range.

[0081] S150: Periodically acquire the humidity inside the refrigerator compartment collected by the humidity sensor according to a preset time interval to obtain the first humidity.

[0082] For example, the humidity inside the refrigerator is measured every 5 seconds.

[0083] S160: Control the working state of the atomizing humidifier according to the first humidity and the target humidity range, so as to maintain the first humidity within the target humidity range.

[0084] As an example, the operating states of a humidifier may include: operating at the target operating voltage, or being turned off.

[0085] If the first humidity is lower than the lower limit of the target humidity range, the atomizing humidifier is controlled to operate at the target working voltage; if the first humidity is higher than the upper limit of the target humidity range, the atomizing humidifier is controlled to stop operating.

[0086] This embodiment periodically acquires the initial humidity level inside the refrigerator compartment from a humidity sensor. The controller can track the humidity change trend in the refrigerator compartment in real time, avoiding problems of insufficient or excessive humidification caused by lag in humidity monitoring. By dynamically adjusting the working state of the atomizing humidifier in conjunction with the target humidity range, the humidity in the refrigerator compartment can be kept stable within the range suitable for food storage, effectively slowing down the moisture loss of leafy green vegetables and preventing phenomena such as wrinkling of berry skin.

[0087] In other embodiments, a humidity sensor may not be installed in the refrigerator compartment. Instead, the operating time of the atomizing humidifier is calculated by detecting the duration the refrigerator door is open, with the door opening time being directly proportional to the humidifier's operating time. Humidifying the refrigerator compartment in this way can also reduce the formation of water droplets on the surface of food.

[0088] As an optional implementation, the first humidity threshold ≤ target humidity range ≤ second humidity threshold; see also Figure 10 The controller is specifically configured to execute steps S161-S162 when performing step S160.

[0089] S161: Obtain a second lookup table; the second lookup table is used to reflect the correspondence between the distance range between the food and the mist outlet of the atomizing humidifier and the running time and downtime of the atomizing humidifier in a first humidification cycle when the first humidity is less than the first humidity threshold; and the correspondence between the distance range between the food and the mist outlet of the atomizing humidifier and the running time and downtime of the atomizing humidifier in a second humidification cycle when the first humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold.

[0090] It is easy to understand that a first humidification cycle includes a running time and a shutdown time. If the first humidity is still less than the first humidity threshold when a first humidification cycle ends, the atomizing humidifier will continue to run or stop in the next first humidification cycle until the first humidity is greater than the first humidity threshold. Then, the atomizing humidifier will perform atomizing humidification with the running time and shutdown time corresponding to the second humidification cycle.

[0091] S162: Control the working status of the atomizing humidifier based on the distance between the food and the mist outlet of the atomizing humidifier, the first humidity, the target humidity range, and the second reference table.

[0092] As an example, the target humidity range is 90%RH ≤ 95%RH. The humidity sensor in the refrigerator compartment collects the humidity value. When the humidity R < 90%, humidification is required. Then, a camera identifies whether there is food in front of the humidifier and calculates the distance L between the food and the mist outlet. When L > 9cm, it indicates that the food will not block the mist. At this point, the humidifier is controlled to operate on for 20 seconds and off for 40 seconds (the high humidification capacity of the atomizing technology and the intermittent operation help prevent condensation) until the humidity reaches 90%. Once 90% humidity is reached, the humidification rate needs to be slowed down to avoid over-humidification and condensation. Therefore, the humidifier's operating time is halved, and the off time is increased, i.e., the atomizing plate is controlled to operate on for 10 seconds and off for 50 seconds until the humidity reaches 95%, at which point humidification stops.

[0093] When the controller determines that the distance L between the food and the mist outlet of the humidifier is within the range of 8cm < L ≤ 9cm, if the spray distance of the atomizing plate remains unchanged, there is a risk of condensation on the food surface. In this case, the controller adjusts the target operating voltage of the humidifier to 10V. At this voltage, the maximum spray distance of the atomizing plate is 8cm, thus preventing condensation on the food surface. However, the mist output of the atomizing plate is relatively reduced. To ensure humidification speed and effect, the running time of the atomizing plate can be increased. Compared to 36g / h atomization at 12V voltage, 32g / h at 10V voltage, so the running time is increased to 22.5s, and the shutdown time is 37.5s, until the humidity reaches 90%. Once the humidity reaches 90%, the humidifier operates in a cycle of 11.25s running and 48.75s stopping until the humidity reaches 95%, at which point humidification stops. This is in accordance with Table 2 - the second reference table below: Table 2 - Second Comparison Table

[0094] It's easy to understand that when users move food from the refrigerator compartment or store new food, the food inside the compartment will change position. Therefore, the controller calculates the distance between the food and the humidifier at regular intervals. If the position changes, it adjusts the humidification control method in a timely manner to ensure humidification effect and reduce condensation. For example, if the refrigerator's humidifier is operating in a mode corresponding to a distance of 6 < L ≤ 7 from the food outlet, and then the user removes the food, the controller, determining that there is no food obstructing the humidifier, can adjust the operating mode to the mode corresponding to 9 < L. This shortens the humidifier's operating time and helps extend the life of the atomizing plate; at the same time, the water mist sprays further and diffuses faster, accelerating humidification. When the user moves the food closer to the atomizing outlet, such as from 7.5cm to 4.5cm, the controller reduces the spray distance of the humidifier from 7cm to 4cm to reduce the risk of water mist condensation on the food surface.

[0095] This embodiment determines the working status of the atomizing humidifier by using a second lookup table, thereby reducing the risk of condensation on the surface of food while ensuring that the humidity in the refrigerator reaches the target humidity range as quickly as possible.

[0096] As an optional implementation, the first humidity threshold ≤ target humidity range ≤ second humidity threshold; the controller is specifically configured to execute S163-S164 when executing step S160.

[0097] S163: When the first humidity is less than the first humidity threshold, calculate the running time of the atomizing humidifier in a first humidification cycle according to the second preset formula, and calculate the shutdown time of the atomizing humidifier in a first humidification cycle according to the third preset formula.

[0098] S164: When the first humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, calculate the running time of the atomizing humidifier in a second humidification cycle according to the fourth preset formula, and calculate the shutdown time of the atomizing humidifier in a second humidification cycle according to the fifth preset formula.

[0099] The second preset formula is: t1 = k2 × X + c; Where t1 is the running time during the first humidification cycle, k2 is a coefficient, X is the distance between the food and the mist outlet, and c is a constant; optionally, k2 = -6 to -2, X is an integer, such as 2 < L ≤ 3, then X = 2; 3 < L ≤ 4, then X = 3; when 9 < L, then X = 9; optionally, c = 30 to 80, for example c = 30, or c = 40, or c = 50, or c = 60, or c = 70, or c = 80.

[0100] The third preset formula is: t2 = T1 - t1; Where t2 is the downtime during the first humidification cycle, and T1 is the duration of the first humidification cycle; optionally, T1 = 60 to 120s, for example, T1 = 60s, or T1 = 70s, or T1 = 80s, or T1 = 90s, or T1 = 100s, or T1 = 110s, or T1 = 120s.

[0101] The fourth preset formula is: t3 = t1 / k3; Where t3 is the running time during the second humidification cycle, and k3 is a coefficient; optionally, k3 is 2.

[0102] The fifth preset formula is: t4 = T2 - t3; Where t4 is the downtime during the second humidification cycle, and T2 is the duration of the second humidification cycle; optionally, T2 = T1.

[0103] As an optional implementation, the controller is also configured to perform S170.

[0104] S170: If the distance between the food and the mist outlet of the atomizing humidifier is less than a first distance threshold, control the atomizing humidifier to stop and issue a prompt message and / or stop the machine.

[0105] As an example, when the distance L between the food and the mist outlet of the humidifier is determined to be less than 2cm, the mist outlet is too close to the food, causing the water mist to not easily diffuse from the mist outlet. This results in water mist accumulating at the mist outlet and on the surface of the food, forming water droplets. Therefore, the humidifier is controlled to stop operating, and the controller can send a prompt message to the mobile APP to remind the user that the food placement is obstructing the normal function of the humidifier and to suggest adjusting the food position, thus reducing the risk of condensation on the food surface.

[0106] As an optional implementation, see [link to implementation details]. Figures 11-14 The atomizing humidifier 20 is an ultrasonic atomizing humidifier, which includes: a housing 21 with a mist outlet 23; a water storage box 24 located inside the housing 21; and an atomizing plate 22 located inside the housing 21. The atomizing plate 22 is located at the mist outlet 23 so that the water mist generated by the atomizing plate 22 is sprayed into the refrigerator compartment through the mist outlet 23.

[0107] It is easy to understand that, since the embodiments of this application can control the water mist spray distance by adjusting the voltage, the existing atomizing humidifier 20 solution can be optimized. By installing the atomizing plate 22 at the mist outlet 23, the water storage capacity of the water storage box 24 is increased, reducing the number of times the user needs to add water. In this way, even if the user places food in the refrigerator near the mist outlet 23 of the atomizing humidifier 20, the controller can adjust the water mist spray distance by controlling the operating voltage of the atomizing humidifier 20, achieving humidification while reducing the formation of water droplets on the surface of the food.

[0108] As an example, to allow for installation slack in the atomizing plate 22, the distance between the atomizing plate 22 and the mist outlet 23 is less than 5mm or less than 1cm. In contrast, the distance between the atomizing plate 22 and the mist outlet 23 in the prior art is approximately 6.5cm. Therefore, this embodiment increases the water storage capacity of the water storage box 24 by shortening the distance between the atomizing plate 22 and the mist outlet 23. See also... Figure 2 In the existing atomizing humidifier 20, the distance between the atomizing plate 22 and the mist outlet 23 is 6.5cm, the height of the atomizing humidifier 20 is 3cm, and the width of the mist outlet 23 is 10cm. Therefore, the volume of the buffer space 25 is approximately 195cm³. 3 See also Figure 14 The atomizing humidifier 20 of this embodiment has no buffer space, thus allowing the water storage box 24 to hold a larger amount of water. For example, if the distance between the atomizing plate 22 and the mist outlet 23 is 5mm, the water storage box 24 of the atomizing humidifier 20 of this embodiment will hold 180g more water than the water storage box 24 of the prior art.

[0109] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0110] See Figure 15 This application also provides a refrigeration device 500 with a multi-dimensional collaborative control atomizing humidification device, comprising: The atomizing humidifier 530 has a mist outlet; The distance acquisition unit 520 is used to acquire the distance between the food and the mist outlet in real time or when a first condition is met; wherein, the first condition may be the detection of a signal that the refrigerator door is closed; wherein, the distance acquisition unit 520 may include a vision unit 521 and a distance resolution unit 522, the distance resolution unit 522 resolving the distance between the food and the mist outlet based on the image acquired by the vision unit 521. The dynamic control module 510 is connected to the distance acquisition unit 520 and the atomizing humidification device 530, respectively. The dynamic control module 510 includes a voltage regulation unit 511 and a timing control unit 512. The dynamic control module 510 is configured to generate control parameters based on the distance between the food and the mist outlet, wherein the control parameters include voltage amplitude parameters, spray timing parameters and water mist spray distance attenuation coefficient. The dynamic control module 510 controls the atomizing humidification device 530 to operate or stop based on the control parameters. Among them, the voltage amplitude parameter and the distance between the food and the mist outlet have an exponential or linear decay relationship. The injection timing parameter determines the running time and shutdown time of the atomizing humidifier 530 in one cycle. The injection timing parameter and the distance between the food and the mist outlet are related by a preset function. The voltage regulation unit 511 controls the operation or shutdown of the atomizing humidifier 530 according to the operation and shutdown operation determined by the timing control unit 512. The amount of shortening of the distance between the food and the mist outlet has a preset correspondence with the amount of decay of the voltage amplitude parameter and the amount of extension of the interval between operation and shutdown.

[0111] Corresponding to the humidification method described in the above embodiments, Figure 15 A structural block diagram of a refrigerator provided in an embodiment of this application is shown. For ease of explanation, only the parts related to the embodiment of this application are shown.

[0112] Reference Figure 15 The refrigerator includes: The acquisition unit 610 is used to acquire the distance between the food and the mist outlet of the atomizing humidifier.

[0113] The calculation unit 620 is used to calculate the target operating voltage of the atomizing humidifier based on the distance between the food and the mist outlet of the atomizing humidifier; wherein the target operating voltage is proportional to the water mist spraying distance of the atomizing humidifier.

[0114] Control unit 630 is used to control the atomizing humidifier to operate at the target operating voltage.

[0115] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0116] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0117] This application also provides a refrigerator, which includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor, wherein the processor executes the computer program to implement the steps in any of the above method embodiments.

[0118] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0119] This application provides a computer program product that, when run on a refrigerator, enables the refrigerator to perform the steps described in the above-described method embodiments.

[0120] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying the computer program code to the refrigerator, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0121] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0122] Computer program code for performing the operations of the embodiments of this application can be written in one or more programming languages ​​or a combination thereof. These programming languages ​​include object-oriented programming languages ​​such as Python, Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0123] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0124] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0125] In the embodiments provided in this application, it should be understood that the disclosed apparatus / refrigerator and method can be implemented in other ways. For example, the apparatus / refrigerator embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0126] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0127] The above-described 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A refrigerator, characterized in that, include: Refrigerator; A misting humidifier is installed inside the refrigerator compartment to spray water mist into the refrigerator compartment to increase the humidity inside the refrigerator compartment; The controller is configured as follows: Obtain the distance between the food and the mist outlet of the humidifier; The target operating voltage of the humidifier is calculated based on the distance between the food ingredient and the mist outlet of the humidifier; wherein, the target operating voltage is proportional to the water mist spraying distance of the humidifier. The atomizing humidifier is controlled to operate at the target operating voltage.

2. The refrigerator as described in claim 1, characterized in that, The cold storage compartment is also equipped with a distance acquisition device or an image acquisition device; When the controller performs the step of obtaining the distance between the food ingredient and the mist outlet of the atomizing humidifier, it is specifically configured as follows: Acquire a first image captured by the image acquisition device; calculate the distance between the food and the mist outlet of the atomizing humidifier based on the first image; Alternatively, the distance between the food sampled by the distance collection device and the mist outlet of the atomizing humidifier can be obtained.

3. The refrigerator as described in claim 1, characterized in that, When the controller performs the step of calculating the target operating voltage of the humidifier based on the distance between the food and the mist outlet of the humidifier, it is specifically configured as follows: Obtain a first lookup table; the first lookup table is used to reflect at least the correspondence between the target operating voltage and the water mist spraying distance range; The target operating voltage of the atomizing humidifier is calculated based on the first lookup table and the distance between the food ingredient and the mist outlet of the atomizing humidifier.

4. The refrigerator as described in claim 1, characterized in that, When the controller performs the step of calculating the target operating voltage of the humidifier based on the distance between the food and the mist outlet of the humidifier, it is specifically configured as follows: The target operating voltage of the humidifier is calculated based on the first preset formula and the distance between the food ingredient and the mist outlet of the humidifier; the first preset formula is: V = (yb) / k1; Where: y is the spray distance of the atomizing humidifier, k1 is a coefficient, V is the target operating voltage, and b is a constant.

5. The refrigerator as described in claim 1, characterized in that, The refrigerator compartment is also equipped with a humidity sensor to collect the humidity inside the refrigerator compartment; The controller is also configured to: Obtain the target humidity range of the refrigerator compartment; The humidity inside the refrigerator is periodically acquired by the humidity sensor at preset time intervals to obtain a first humidity level. The operating state of the atomizing humidifier is controlled according to the first humidity and the target humidity range, so that the first humidity is maintained within the target humidity range.

6. The refrigerator as described in claim 5, characterized in that, First humidity threshold ≤ target humidity range ≤ second humidity threshold; When the controller performs the step of controlling the operating state of the atomizing humidifier based on the first humidity and the target humidity range, it is specifically configured as follows: Obtain a second lookup table; the second lookup table is used to reflect the correspondence between the distance range between the food and the mist outlet of the atomizing humidifier and the running time and downtime of the atomizing humidifier in a first humidification cycle when the first humidity is less than the first humidity threshold; and the correspondence between the distance range between the food and the mist outlet of the atomizing humidifier and the running time and downtime of the atomizing humidifier in a second humidification cycle when the first humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold; The working state of the atomizing humidifier is controlled based on the distance between the food and the mist outlet of the atomizing humidifier, the first humidity level, the target humidity range, and the second lookup table.

7. The refrigerator as described in claim 5, characterized in that, First humidity threshold ≤ target humidity range ≤ second humidity threshold; When the controller performs the step of controlling the operating state of the atomizing humidifier based on the first humidity and the target humidity range, it is specifically configured as follows: When the first humidity is less than the first humidity threshold, the operating time of the atomizing humidifier in a first humidification cycle is calculated according to the second preset formula, and the shutdown time of the atomizing humidifier in a first humidification cycle is calculated according to the third preset formula. When the first humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, the operating time of the atomizing humidifier in a second humidification cycle is calculated according to the fourth preset formula, and the shutdown time of the atomizing humidifier in a second humidification cycle is calculated according to the fifth preset formula. The second preset formula is: t1 = k2 × X + c; Where t1 is the running time within the first humidification cycle, k2 is a coefficient, X is the distance between the food and the mist outlet, and c is a constant; The third preset formula is: t2 = T1 - t1; Where t2 is the downtime during the first humidification cycle, and T1 is the duration of the first humidification cycle; The fourth preset formula is: t3 = t1 / k3; Where t3 is the running time within the second humidification cycle, and k3 is a coefficient; The fifth preset formula is: t4 = T2 - t3; Where t4 is the downtime during the second humidification cycle, and T2 is the duration of the second humidification cycle.

8. The refrigerator as described in claim 1, characterized in that, The controller is also configured to: If the distance between the food and the mist outlet of the humidifier is less than a first distance threshold, the humidifier is controlled to stop and a prompt message is issued and / or the machine is shut down.

9. The refrigerator as described in any one of claims 1-8, characterized in that, The atomizing humidifier includes: A housing, on which the mist outlet is provided; A water storage box is located inside the housing; The atomizing plate is located inside the housing; The atomizing plate is disposed at the mist outlet so that the water mist generated by the atomizing plate is sprayed into the refrigerator compartment through the mist outlet.

10. A humidification method, characterized in that, Applied to a refrigerator, the refrigerator being used to perform the steps executed by the controller in the refrigerator as described in any one of claims 1-8.

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