refrigerator

Abstract

This invention provides a refrigerator, comprising: a cabinet, a storage device, a humidification device, and a light-enhancing unit; the storage device defines a storage cavity, and a first moisture-permeable membrane is provided on one side wall of the storage device; a first fan is provided on the side wall of the storage device with the first moisture-permeable membrane, the first fan being located on the side of the side wall closer to the storage cavity, and the air outlet of the first fan facing the first moisture-permeable membrane; the airflow from the air outlet of the first fan flows along the surface of the first moisture-permeable membrane; the humidification device is disposed in the storage cavity for humidifying the storage cavity; the light-enhancing unit is disposed on the top of the storage device for enhancing the freshness of food through light; the light-enhancing unit includes multiple light sources and a light guide plate located on the light path of the light sources; among the multiple light sources, at least one light source capable of emitting red light, orange light, and blue light is included; this invention provides efficient and rapid dehumidification, preventing food from losing moisture due to wind blowing during dehumidification, and can perform light-enhancing according to the type of food, thereby improving the preservation effect.

Description

Technical Field

[0001] This invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator. Background Technology

[0002] Currently available refrigerators with adjustable humidity drawers have two major drawbacks. First, it is difficult to simultaneously achieve the desired humidity control effect at different settings. This often results in the following situations: for example, the high humidity setting has poor moisturizing effect, causing leafy vegetables and other foods that require a high humidity environment to dry out; or when the drawer is set to the high humidity setting, excessive humidity inside the drawer leads to condensation, while when set to the medium or low humidity setting, excessive humidity can cause mold growth if citrus fruits, melons, or other foods that are suitable for medium or low humidity are stored.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a refrigerator.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] Refrigerator, which includes:

[0007] The container defines the storage space;

[0008] A storage device is housed within the storage compartment; the storage device defines a sealed storage cavity, and a communication opening is formed on one side wall of the storage device;

[0009] A first moisture-permeable membrane is disposed at the communication port of the storage device;

[0010] A first fan is disposed on the side wall of the storage device having the first moisture-permeable membrane, and is located on the side of the side wall close to the storage compartment; the air outlet of the first fan faces the first moisture-permeable membrane, and the airflow from the air outlet of the first fan flows along the surface of the first moisture-permeable membrane.

[0011] A humidifying device is provided inside the storage cavity for humidifying the storage cavity;

[0012] A light-enhancing unit, located at the top of the storage device, is used to enhance the freshness of food within the storage cavity using light; the light-enhancing unit includes:

[0013] Multiple light sources, wherein the multiple light sources emit light of different wavelengths; among the multiple light sources, at least a red light source that emits red light with a wavelength range of 620-780nm, an orange light source with a wavelength range of 600-640nm, and a blue light source with a wavelength range of 407-505nm.

[0014] A light guide plate is located on the light path of the light source.

[0015] As one possible implementation, the storage cavity is equipped with multiple cameras that capture images of the storage cavity from different angles, and the refrigerator includes a controller; the controller acquires the types of food in the storage cavity through the cameras, and controls the multiple light sources to emit light according to the types of food.

[0016] As one possible implementation, a second humidity sensor for detecting the humidity inside the storage cavity is provided inside the storage cavity;

[0017] The controller is configured to acquire the food space ratio γ and storage humidity R in the storage cavity after the storage device enters the storage mode. N Storage humidity change rate α r ;

[0018] When γ < γ0 and R N <R Z0 At that time, the controller controls the humidification device to increase the humidity in the storage cavity;

[0019] When γ≥γ0, the controller initiates the dehumidification program; where γ0 is the food content threshold.

[0020] As one possible implementation, the refrigerator includes a refrigeration unit having a second air outlet corresponding to the position of the first moisture-permeable membrane; the low-temperature airflow generated by the refrigeration unit enters the storage compartment through the second air outlet and flows through the first moisture-permeable membrane.

[0021] As one feasible approach, the dehumidification process includes:

[0022] In α r3 ≤α r And R N ≥R Z3 At that time, the controller controls the first fan to operate at the third power P3, and the refrigeration unit operates until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ;

[0023] Where, α r3 R is the third humidity change rate threshold. Z3 R is the third humidity threshold. Z0 R represents the storage humidity threshold under the given storage mode. Z0 <R Z3 .

[0024] As one feasible approach, the dehumidification process includes: in α r2 ≤αr <α r3 And R N ≥R Z2 At that time, the controller controls the first fan to operate at the second power P2 until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ;

[0025] Where, α r2 R is the second humidity change rate threshold. Z2 The second humidity threshold; R Z2 <R Z3 P2≤P3.

[0026] As one feasible approach, the dehumidification process includes: in α r1 ≤α r <α r2 And R N ≥R Z1 At that time, the controller controls the first fan to operate at a first power P1 until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ;

[0027] Where, α r1 R is the first humidity change rate threshold. Z1 R is the first humidity threshold; Z0 <R Z1 <R Z2 P1 < P2.

[0028] As one feasible approach, the rated power of the first fan is denoted as P0, where P1 < P0 < P2 ≤ P3.

[0029] As one feasible approach, a second fan is provided within the storage cavity; the dehumidification process includes:

[0030] In R N When R2 is greater than or equal to R2, the controller controls the second fan to operate; where R2 is the second dehumidification threshold, and R2 > R Z2 Or R2 > R Z3 .

[0031] As one feasible approach, a second fan is provided within the storage cavity; the dehumidification process includes: in α r2 ≤α r <α r3 And R N ≥R Z2 Sometimes or in α r3 ≤α r And R N ≥R Z3At that time, the controller controls the second fan to operate.

[0032] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0033] This invention provides a refrigerator, comprising: a cabinet defining a storage compartment; a storage device housed within the storage compartment; a humidifying device; and a light-enhancing unit. The storage device defines a sealed storage cavity, and a communication opening is formed on one side wall of the storage device. A first moisture-permeable membrane is provided at the communication opening of the storage device. A first fan is provided on the side wall of the storage device having the first moisture-permeable membrane, the first fan being located on the side of the side wall closer to the storage compartment, and the air outlet of the first fan facing the first moisture-permeable membrane. Airflow from the air outlet of the first fan flows along the surface of the first moisture-permeable membrane. The humidifying device is disposed within the storage cavity for humidifying the storage cavity. The light-enhancing unit is disposed at the top of the storage device for light-enhancing the food in the storage cavity. The light-enhancing unit includes multiple light sources and a light guide plate located on the light path of the light sources. The multiple light sources emit light of different wavelengths. Among the multiple light sources, at least a red light source that emits red light with a wavelength range of 620-780nm, an orange light source with a wavelength range of 600-640nm, and a blue light source with a wavelength range of 407-505nm are included. The present invention effectively increases the airflow velocity on the surface of the first moisture-permeable membrane by turning on the first fan, thereby efficiently and quickly dehumidifying the food and preventing it from losing moisture due to being blown away by the wind. This enhances the dehumidification effect and prevents the food from becoming moldy due to excessive humidity in the storage cavity, effectively improving the moisturizing and preservation effect. At the same time, different light-enhancing modes can be selected according to the type of food stored to further improve the light preservation effect. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the refrigerator of the present invention;

[0035] Figure 2 This is a schematic diagram of the storage device of the refrigerator of the present invention;

[0036] Figure 3 This is a schematic diagram of the storage device of the refrigerator of the present invention in the open state;

[0037] Figure 4 This is a partial structural schematic diagram of the storage device of the refrigerator of the present invention;

[0038] Figure 5 This is a schematic diagram of a portion of the storage device of the refrigerator of the present invention from another perspective.

[0039] Figure 6 This is a schematic diagram of the storage device of the refrigerator of the present invention from another perspective;

[0040] Figure 7 This is a schematic diagram of the storage device portion of the refrigerator of the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of the first moisture-permeable membrane and the support of the refrigerator of the present invention;

[0042] Figure 9 This is a cross-sectional view of the refrigeration unit of the refrigerator of the present invention;

[0043] Figure 10 This is a cross-sectional view of the refrigeration unit of the refrigerator of the present invention from another perspective;

[0044] Figure 11 This is a schematic diagram of the refrigeration unit of the refrigerator of the present invention;

[0045] Figure 12 This is a schematic diagram of the refrigeration unit of the refrigerator of the present invention from another perspective;

[0046] Figure 13 A schematic diagram of the assembly of the storage device and humidification device of the refrigerator of the present invention;

[0047] Figure 14 Another perspective structural schematic diagram of the assembly of the storage device and humidification device of the refrigerator of the present invention;

[0048] Figure 15 This is a schematic diagram of the refrigerator's storage device in the open state.

[0049] Figure 16 This is a schematic diagram of the humidification device of the refrigerator of the present invention;

[0050] Figure 17 This is a schematic diagram of the humidity control method for the refrigerator of the present invention.

[0051] Figure 18 This is an overall schematic diagram of another embodiment of the constant humidity control method for the refrigerator of the present invention;

[0052] Figure 19 This is an overall schematic diagram of another embodiment of the constant humidity control method for the refrigerator of the present invention;

[0053] Figure 20 This is an overall schematic diagram of another embodiment of the constant humidity control method for the refrigerator of the present invention;

[0054] Figure 21 This is an overall schematic diagram of another embodiment of the constant humidity control method for the refrigerator of the present invention.

[0055] In the above figures: Storage room 1; Storage device 2; Storage cavity 3; First breathable membrane 4; First fan 5; Second fan 6; Shell 7; Drawer 8; Support 9; Box 10; Control panel 11; First side 12; Second side 13; Cover 14; Inner liner 15; Fan housing cavity 21; Supply fan 22; First air duct 23; Second air duct 24; Return air duct 25; First air supply outlet 26; Second air supply outlet 27; Return air outlet 28; First air damper 20; Second air damper 29; Divider plate 30; First cavity 31; Second cavity 32; Absorbent cotton 33; Water storage box 34; Water guide plate 35; Second breathable membrane 36; Opening 38. Detailed Implementation

[0056] The present invention will be further described below with reference to specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the scope of protection claimed by the present invention is not limited to the scope described in the specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0057] It should be noted that the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0058] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0059] A type of refrigerator, such as Figures 1-8 As shown, the refrigerator includes an insulated cabinet 10; the cabinet 10 includes an outer shell and an inner liner 15, the inner liner 15 defining multiple insulated storage compartments 1 for storing food and other items. In this embodiment, these storage compartments 1 are a refrigerator compartment located at the top and a freezer compartment located at the bottom. Each storage compartment 1 can be closed by its corresponding door. It should be noted that the arrangement of the refrigerator and freezer compartments is not limited to an upper and lower arrangement; for example, the condenser compartment and freezer compartment can be arranged side by side. Of course, the number of storage compartments is not limited to two.

[0060] The storage room 1 is equipped with a storage device 2. The storage device 2 defines a sealed storage cavity 3, and a connecting opening is formed on one side wall of the storage device 2. A first moisture-permeable membrane 4 is provided at the connecting opening. A first fan 5 is provided on the side wall of the storage device 2 with the first moisture-permeable membrane 4. The first fan 5 is located on the side of the side wall closest to the storage room 1. The first fan 5 is adjacent to the first moisture-permeable membrane 4, and the air outlet of the first fan 5 faces the first moisture-permeable membrane 4. The airflow from the air outlet of the first fan 5 flows along the surface of the first moisture-permeable membrane 4. The sealed storage cavity 3 is provided above. The storage cavity 3 and the storage room 1 exchange moisture through the first moisture-permeable membrane 4 at the connecting opening, but no gas exchange occurs, so that the storage cavity 3 is not affected by the airflow of its external environment (the storage room).

[0061] The refrigerator is equipped with a controller, and a first humidity sensor is installed in the storage compartment 1 to monitor the humidity in the storage compartment 1. In this example, the first humidity sensor is installed on the back wall of the storage compartment 1 and corresponds to the position of the storage device 2. A second humidity sensor is installed in the storage cavity 3 to monitor the humidity in the storage cavity 3. When the humidity inside the storage cavity 3 exceeds the humidity inside the storage room 1 by a first threshold, the controller controls the first fan 5 to operate. The airflow from the outlet of the first fan 5 flows along the surface of the first permeable membrane 4, thus accelerating the airflow on the side of the first permeable membrane 4 closest to the storage room 1. This reduces the humidity value outside the sealed storage cavity 3 (especially the first permeable membrane 4), creating a larger humidity difference. This prevents the efficiency of the first permeable membrane 3 from decreasing or completely failing, thus preventing moisture from being trapped inside the storage cavity 3. This increases the moisture permeability, thereby reducing the accumulation of moisture generated by the food inside the storage cavity 3, preventing condensation or frost. This avoids condensation inside the storage cavity 3, which can lead to mold growth on the food. It also prevents the food from being blown away by the wind during dehumidification, thus preventing moisture loss. In addition, it can also promote airflow within the storage room 1, promoting uniform cooling within it.

[0062] The first humidity threshold is set based on the suitable humidity for storing the food. When setting up the refrigerator, multiple thresholds can be preset for different types and quantities of food, allowing users to choose the appropriate threshold for more targeted humidity control.

[0063] As an feasible approach, an operation panel 11 is installed on the upper wall of the storage device 2 to allow users to select storage modes with different humidity levels. The high humidity setting corresponds to a humidity range of 90%–98% RH, suitable for storing leafy vegetables, cauliflower, mushrooms, legumes, stone fruits, pome fruits, and berries. The medium humidity setting corresponds to a humidity range of 80%–90% RH, suitable for storing root vegetables such as potatoes and sweet potatoes, solanaceous vegetables, and citrus fruits. The low humidity setting corresponds to a humidity range of 70%–80% RH, suitable for storing root vegetables such as onions and garlic, melons, and fruits. This configuration achieves targeted humidity control for food items, improving preservation and product quality, and enhancing the user experience. As an feasible approach, the storage device 2 includes a housing 7 and a retractable or retractable drawer 8. The operation panel 11 is located on the top wall of the housing 7 near the refrigerator door for easy user operation.

[0064] In this embodiment, a cover 14 is provided at the connecting opening, defining a receiving cavity to accommodate the first moisture-permeable membrane 4. In this embodiment, the receiving cavity formed by the cover 14 is located on the side wall of the storage device 2 near the rear wall of the storage compartment 1, so that when the drawer 8 is fully accommodated in the storage cavity 3, the drawer 8 is prevented from contacting the first moisture-permeable membrane 4 and damaging it; at the same time, it effectively protects the first moisture-permeable membrane 4 from collisions and damage by components other than the storage device 2. Multiple ventilation holes are formed on the cover 14 to allow airflow blown by the first fan 5 to pass through and flow over the surface of the moisture-permeable membrane. In this embodiment, the cover 14 is integrally formed with the side wall of the storage device 2 for easy processing.

[0065] As another feasible approach, a second fan 6 is provided in the storage cavity 3 to promote airflow and mixing in the storage cavity 3, so as to avoid excessive humidity and condensation in the storage cavity 3, which would lead to food spoilage.

[0066] When the humidity inside storage chamber 3 exceeds the humidity inside storage room 1 by a second threshold (where the second threshold > the first threshold), the humidity inside storage chamber 3 becomes even higher. At this point, the first fan 5 and the second fan 6 operate simultaneously. The first fan 5 effectively increases the airflow velocity through the first permeable membrane 4, thereby increasing the water vapor permeation rate of the membrane for rapid dehumidification. The second fan 6 operates, promoting airflow and mixing within storage chamber 3 to prevent excessive humidity from causing condensation and thus preventing food spoilage. The second threshold is set based on the humidity level at which mold growth occurs in the stored food.

[0067] In this embodiment, the second fan 6 is disposed on the side wall of the storage device 2 where the first moisture-permeable membrane 4 is located, and is adjacent to the first moisture-permeable membrane 4. The air outlet of the second fan 6 faces the first moisture-permeable membrane 4, and the airflow from the air outlet of the second fan 6 flows along the surface of the first moisture-permeable membrane 4. The airflow from the air outlet of the second fan 6 promotes air circulation within the storage cavity 3 to prevent excessive humidity and condensation. On the other hand, the airflow generated by the second fan 6 flows through the first moisture-permeable membrane 4, accelerating the water vapor permeation rate of the first moisture-permeable membrane 4 for rapid dehumidification, thus preventing excessive humidity and condensation. The above-mentioned positioning of the second fan 6 accelerates the regulation of humidity within the storage cavity 3, preventing food from becoming moldy.

[0068] As one feasible approach, the first fan 5 and the second fan 6 are positioned on opposite sides of the same side wall of the storage device 2, with the second fan 6 corresponding to the position of the first fan 5. When the storage cavity 3 is in a high-humidity environment, the first fan 5 and the second fan 6 operate simultaneously, increasing the airflow velocity on both sides of the first moisture-permeable membrane 4, further accelerating the water vapor permeation rate of the first moisture-permeable membrane 4, and speeding up dehumidification.

[0069] In this embodiment, the area defined by the edge of the side wall of the storage device 2 where the first moisture-permeable membrane 4 is located is denoted as S1, and the area of ​​the first moisture-permeable membrane 4 is denoted as S2, where S2:S1∈[0.5,0.8]. This allows for the reasonable arrangement of the first fan 5, the second fan 6, and the first moisture-permeable membrane 4 on the side wall of the storage device 2, while ensuring that the area of ​​the first moisture-permeable membrane 4 meets the requirements for humidity regulation.

[0070] In this embodiment, the plane where the air outlet of the first fan 5 or the second fan 6 is located is perpendicular to the plane where the first moisture-permeable membrane 4 is located; that is, the airflow flowing out of the air outlet of the first fan 5 or the second air outlet flows parallel to the first moisture-permeable membrane 4; so that the airflow flowing out of the air outlet of the first fan or the second fan can flow through more areas of the first moisture-permeable membrane 4, thereby improving the overall water vapor permeability of the first moisture-permeable membrane 4 and accelerating dehumidification.

[0071] In this embodiment, the first permeable membrane 4 is rectangular; the longer side of the rectangular first permeable membrane 4 is designated as the first side 12, and the shorter side is designated as the second side 13. The first fan 5 and the second fan 6 are both positioned adjacent to the shorter second side 13 of the first permeable membrane 4. This ensures that the outlets of the first fan 5 and the second fan 6 effectively cover the first permeable membrane 4, and also effectively utilizes the airflow to allow the airflow to flow fully through the direction of the first side 12 of the first permeable membrane 4. Furthermore, the plane containing the outlet of the first fan 5 or the second fan 6 is parallel to the shorter edge of the first permeable membrane 4 to effectively ensure the effective airflow through the first permeable membrane 4 and improve airflow utilization.

[0072] The first moisture-permeable membrane 4 is set as a rectangle, with the length of its first side 12 denoted as C and the length of its second side 13 denoted as B, where C:B ∈ [1.2, 1.8]. At this time, the airflow from the first fan 5 and / or the second fan 6 can effectively cover the first moisture-permeable membrane 4 and ensure the airflow velocity through each area of ​​the first moisture-permeable membrane 4, thereby ensuring that the first moisture-permeable membrane 4 has a high water vapor permeation rate at all points.

[0073] Along the second side 13 of the first permeable membrane 4, the outlet size of the first fan 5 is denoted as W1, and the outlet size of the second fan 6 is denoted as W2; W1: B∈[0.3, 0.7], W2: B∈[0.3, 0.7]; the above settings can reasonably arrange the first permeable membrane 4 and the fan by limiting the size of the fan and the size of the first permeable membrane 4, and ensure that the airflow flowing out of the outlet of the first fan 5 or / and the second fan 6 has a comprehensive and effective coverage rate, thereby further improving the overall water vapor permeation rate of the first permeable membrane 4.

[0074] In addition, the normal line of the first permeable membrane 4 passing through the center of the first permeable membrane 4 is denoted as axis L, the plane where the air outlet of the first fan or the second fan is located is denoted as air outlet plane P, the distance between axis L and air outlet plane P is denoted as D1, and the distance between the adjacent edge (second edge 13) of the first permeable membrane 4 and the air outlet of the first fan or the second fan and the air outlet plane P is denoted as D2, D2:D1∈[1,1.5], so that the airflow flowing out of the air outlet plane can maintain effective kinetic energy flow through the first edge 12 of the first permeable membrane 4, thereby increasing the water vapor permeability of the first permeable membrane 4.

[0075] The center line of the first permeable membrane 4, parallel to the bottom surface of the storage room 1, is denoted as center line M (in this embodiment, the center line of the rectangle parallel to the first side 12). The areas of the first permeable membrane 4 located on opposite sides of center line M are denoted as the first permeable zone and the second permeable zone, respectively. The air outlet of the first fan 5 and the air outlet of the second fan 6 face one of the first permeable zones and the other faces the second permeable zone. The airflow from the air outlet of the first fan 5 mainly flows through the permeable zone it faces; the airflow from the air outlet of the second fan 6 mainly flows through the permeable zone it faces. This arrangement ensures a uniform distribution of airflow intensity throughout the entire area of ​​the first permeable membrane 4, fully utilizing the first permeable membrane 4 and improving permeability efficiency. In this embodiment, the first permeable zone is located below the second permeable zone, and the air outlet of the first fan 5 faces the first permeable zone, while the air outlet of the second fan 6 faces the second permeable zone.

[0076] In the above embodiments, the first fan 5 and the second fan 6 are centrifugal fans or vortex fans. In this embodiment, the first moisture-permeable membrane 4 is disposed on the rear wall of the storage cavity 3. Furthermore, the first moisture-permeable membrane 4 is mounted on the bracket 9, and the bracket 9 is snapped into the storage device 2 at the communication opening. Specifically, the bracket 9 is provided with two first moisture-permeable membranes 4, which are arranged side by side. As an optional configuration, the two first moisture-permeable membranes are spaced apart to effectively improve moisture permeability.

[0077] In this embodiment, as an optional configuration, a light-enhancing unit is provided in the storage compartment 1. Specifically, in this embodiment, the light-enhancing unit is located at the top of the storage compartment so that the light it emits can illuminate the food inside the storage cavity 3. Specifically, the enhancing module includes a light guide plate and multiple light sources. The light guide plate is located in the light path of the light sources, and the multiple light sources emit light of different wavelengths. Among the multiple light sources, at least a red light source that emits red light with a wavelength range of 620-780nm, an orange light source with a wavelength range of 600-640nm, and a blue light source with a wavelength range of 407-505nm are included. The freshness enhancement module uses a combination of multiple light sources and light guide plates to form a surface light source that illuminates the refrigerator compartment, thereby expanding the illumination range to meet the light preservation needs of large storage spaces like refrigerators. Simultaneously, the multiple light sources include at least red, orange, and blue light sources. Red light reduces ethylene production and inhibits vitamin C decomposition, promoting carbohydrate synthesis and improving plant stem development. Orange light promotes the growth of fruit and vegetable seeds, while blue light inhibits plant growth and bud development, resulting in thicker vegetables. This significantly improves the freshness preservation effect of food within the storage device. A specific control program controls the illumination sequence, illumination time, and light intensity of at least the red, orange, and blue light sources, establishing corresponding preservation modes, such as fruit preservation modes and vegetable preservation modes. Different preservation modes are selected based on the type of food being stored, further enhancing the light preservation effect. For example, the light source is a point light source of LED beads, with multiple LED beads integrated on a circuit board. Working in conjunction with a light guide plate, the point light source forms a surface light source that illuminates the storage cavity 3, thereby expanding the illumination range to meet the light preservation requirements of the storage cavity 3. The controller sends control signals to the circuit board to control the working state of the multiple light sources (LED beads), such as whether the LED beads are lit or turned off, which specific light source is lit, the duration of lighting, the light intensity, and the lighting interval between two wavelength LED beads. In this embodiment, in the light preservation mode, multiple light sources are controlled to emit light alternately. As one feasible approach, the operation panel 11 is provided with operation buttons for selecting the light preservation mode. By triggering the operation panel to enter the light preservation mode, multiple light sources emit light alternately.

[0078] like Figures 9-12As shown, a refrigeration unit is installed on the rear wall of storage room 1, and the refrigeration unit and the rear wall of storage room 1 together define a return air duct 25. An evaporator (not shown in the figure) is installed in the return air duct 25 to cool the passing air. The refrigeration unit defines a fan housing cavity 21, and a supply fan 22 is installed in the fan housing cavity 21.

[0079] The refrigeration unit defines a first air duct 23 and a second air duct 24 that connect the storage compartment and the fan housing 21. A first air outlet 26 near the upper end of the refrigeration unit, a second air outlet 27 near the lower end of the refrigeration unit, and a return air outlet 28 connected to the return air duct 25 are formed on the front side of the refrigeration unit. The second air outlet 27 corresponds to the first moisture-permeable membrane 4 on the storage device 2, and the return air outlet 28 is located below the second air outlet 27. The first air duct 23 connects the fan housing 21 and the first air outlet 26, allowing the low-temperature airflow passing through the evaporator to enter the storage compartment 1 from the top of the storage compartment. The low-temperature air delivered by the first air outlet 26 passes through the storage compartment 1 and enters the return air duct 25 through the return air outlet 28 located at the bottom. After being cooled by the evaporator, it enters the fan housing 21.

[0080] The second air duct 24 connects the fan housing 21 and the second air outlet 27. The low-temperature airflow entering the storage room 1 through the second air outlet 27 flows through the first moisture-permeable membrane 4 and returns to the return air duct 25 through the return air outlet 28. After being cooled by the evaporator, it enters the fan housing 21. This forms a local low-temperature airflow circulation around the first moisture-permeable membrane 4, which effectively affects the water vapor permeability of the first moisture-permeable membrane 4 and promotes dehumidification. At the same time, the local low-temperature airflow circulation reduces its impact on the temperature inside the storage room.

[0081] In this embodiment, the first air duct 23 is provided with a first air door 20 that connects or disconnects the fan housing cavity 21 and the storage room 1, and the second air duct 24 is provided with a second air door 29 that connects or disconnects the fan housing cavity 21 and the storage room 1.

[0082] When the temperature inside storage room 1 (outside storage cavity 3) changes, the water vapor pressure and chemical potential energy of the air outside the first permeable membrane 4 will change. The potential energy difference inside and outside the first permeable membrane 4 will cause spontaneous moisture transfer until the humidity inside storage cavity 3 and the humidity of the air in storage room 1 outside the first permeable membrane 4 reach equilibrium. By changing the humidity inside storage cavity 3 in the above way, when the second humidity sensor inside storage cavity 3 detects that the actual humidity inside storage cavity 3 is consistent with the set humidity threshold (humidity level), the humidity adjustment process is completed, and the second air damper 29 is closed; the temperature inside storage room 1 is maintained within a constant range, and the humidity inside storage cavity 3 will also continue to be in a humidity equilibrium state, maintaining a constant humidity.

[0083] The technical principle of the first moisture-permeable membrane is that water will undergo a transfer-equilibrium process under the difference in chemical potential in different environments.

[0084] The chemical potential difference is ΔM = M o -M i =R(T) o lnp o -T i lnp i ), where P is the water vapor pressure, T is the temperature, and o and i represent the corresponding parameters on the outside of the first permeable membrane and the inside of the storage cavity, respectively.

[0085] If ΔM>0, the transfer of water vapor from the outside of the first moisture-permeable membrane into the storage cavity is a spontaneous process. In order to reach an equilibrium state, the humidity in storage cavity 3 will increase until ΔM=0.

[0086] If ΔM = 0, the water vapor outside the first permeable membrane is in a dynamic equilibrium state, and the humidity inside the storage cavity will neither increase nor decrease.

[0087] If ΔM < 0, the transfer of water vapor from the storage cavity to the outside of the first moisture-permeable membrane is a spontaneous process. In order to reach an equilibrium state, the humidity in storage cavity 3 will decrease until ΔM = 0.

[0088] In actual use, the user selects the appropriate humidity level according to the ingredients. The second humidity sensor obtains the real-time humidity in the storage cavity 3. If the actual humidity in the storage cavity 3 is within the threshold range of the set humidity level, no adjustment is made.

[0089] If the actual humidity inside storage cavity 3 exceeds the set humidity threshold, dehumidification is required. In this case, the blower 22 is activated, and the second damper 29 is opened. The second duct 24 connects the fan housing 21 to the storage room 1. Low-temperature air enters the storage room 1 through the second air outlet 27 and flows through the first permeable membrane 4. Then, it returns to the return air duct 25 through the return air outlet 28, is cooled by the evaporator, and enters the fan housing 21. This creates a localized low-temperature airflow circulation around the first permeable membrane, reducing the air temperature outside the first permeable membrane 4. At this time, T... o ↓, and T o ↓then p o ↓, and according to ΔM=M o -M i =R(T) o lnp o -T i lnp i Analysis shows that M oThis will also cause the water vapor in the storage cavity 3 to spontaneously transfer to the outside of the first permeable membrane 4 if ΔM < 0, until ΔM = 0. The above local low-temperature airflow circulation effectively promotes the rapid passage of water vapor in the storage cavity 3 through the first permeable membrane 4 into the storage room 1, and can quickly remove the water vapor that has permeated from the storage cavity 3, effectively accelerating the dehumidification rate and achieving rapid humidity adjustment; on the other hand, through heat exchange, the temperature inside the storage cavity decreases, forming a lower temperature storage space suitable for storing fresh food, etc.

[0090] During the dehumidification process described above, the second humidity sensor again determines whether the actual humidity inside the storage cavity is within the threshold range of the set humidity level. If it is, the humidity adjustment process is complete; if the humidity is still higher than the set humidity level, the second air duct 24 will continue to reduce the air temperature outside the first moisture-permeable membrane 4 and continue the humidity adjustment process until the second humidity sensor detects that the actual humidity inside the storage cavity 3 is within the threshold range of the set humidity level.

[0091] like Figures 13-16 As shown, a humidifying device is provided inside the drawer; in this embodiment, the humidifying device is located at the front end of the drawer 8; specifically, the inner cavity of the drawer 8 is divided into a first cavity 31 for placing items and a second cavity 32 defined by the humidifying device; wherein, the first cavity 31 and the second cavity 32 are separated by a partition 30. In this embodiment, the second cavity 32 is located in front of the first cavity 31.

[0092] Specifically, the partition plate 30 has an opening 38 connecting the first cavity 31 and the second cavity 32, and a second moisture-permeable membrane 36 is installed at the opening 38. The water storage box 34 is connected to a water guide plate 35, and absorbent cotton 33 is installed inside the water guide plate 35. The absorbent cotton 33 and the second moisture-permeable membrane 36 are adjacent to each other and have the same shape. A water valve is installed on the water storage box 34 to control the amount of water flowing from the water storage box into the water guide plate 35. When the amount of food in the storage cavity 3 is relatively small, the moisture from the food will be released to the surrounding area of ​​the storage cavity. This may cause the food to lose moisture; the humidification device can promptly increase the humidity inside the storage cavity, improving the food preservation effect. Specifically, active humidification is performed when the amount of food in the storage cavity 3 is relatively small. During active humidification, the water valve is opened to ensure sufficient water in the water guide tray 35. The absorbent cotton 33 absorbs the moisture and, located on one side of the second permeable membrane 36, effectively increases the humidity on the side of the second permeable membrane 36 closest to the second cavity 32. This disrupts the humidity balance on both sides of the second permeable membrane 36, allowing moisture to enter the first cavity 31 from within the second cavity 32 through the second permeable membrane 36, thereby increasing the air humidity within the first cavity 31 and effectively ensuring the freshness of the food. During non-active humidification, the water valve is closed to prevent the absorbent cotton 33 from constantly absorbing water and affecting the humidity within the first cavity.

[0093] In this embodiment, the humidifying device includes a housing defining a second chamber 32. The rear wall of the housing forms a partition plate 30 separating the first chamber 31 and the second chamber 32, with an opening 38 formed thereon. A water storage box 34, a water guide plate 35, and absorbent cotton 33 are all installed inside the housing. This makes the humidifying device a separate module, facilitating installation and disassembly.

[0094] As another way of setting up a humidifying device, the humidifying device is set in the storage cavity, and the storage cavity is divided into a first cavity for placing food and a second cavity defined by the humidifying device; the first cavity and the second cavity are connected by an opening; the humidifying device includes a water storage box, a water guide plate, a water absorption membrane set in the water guide plate and located at the opening, and a humidifying fan set in the second cavity; the airflow from the air outlet of the humidifying fan flows along the surface of the first moisture-permeable membrane.

[0095] The humidification device mentioned above can operate simultaneously with or separately from the light-enhancing unit. The light-enhancing unit works by irradiating the surface of fruits and vegetables with light to promote photosynthesis and maintain their quality. However, this also promotes respiration and transpiration, accelerating moisture loss and negatively impacting the quality of the produce. By installing a humidification device to humidify the air inside the storage compartment when necessary, it helps to significantly inhibit moisture loss from fruits and vegetables, further improving the refrigerator's preservation performance.

[0096] In this embodiment, the storage device 2 is installed in the refrigerator compartment, where the humidity is within the range of 3℃ to 8℃. Since the storage cavity 3 exchanges water vapor with the refrigerator compartment through the first moisture-permeable membrane 4, under normal conditions, the humidity in the storage cavity 3 mainly comes from the transpiration of the fruits and vegetables themselves, and the relative humidity in the storage cavity 3 reaches 80%-90%.

[0097] Depending on the type of food stored in storage unit 2, the humidity requirements within storage cavity 3 vary. In this embodiment, the refrigerator is equipped with multiple storage modes, and the control panel 11 allows the user to select the appropriate mode to adjust the humidity within storage cavity 3. As mentioned earlier, the control panel 11 has multiple humidity levels, allowing the user to select the optimal humidity for food preservation within storage cavity 3. The storage mode can be switched via R... N >R Z0 At that time, the first fan is controlled to operate to adjust the humidity in the storage cavity 3 to reach the set storage humidity threshold R. Z0 (The humidity threshold corresponding to the set humidity level). Specifically, as mentioned above, the control panel has high humidity, medium humidity, and low humidity levels; the high humidity level corresponds to a high humidity storage mode, the medium humidity level corresponds to a medium humidity storage mode, and the low humidity level corresponds to a low humidity storage mode; each set humidity level has its own corresponding storage humidity threshold R. Z0 The above storage humidity threshold RZ0 When a humidity range is used as a threshold, the maximum value of the range is considered to be above the humidity threshold, the minimum value of the range is considered to be below the humidity threshold, and the range is considered to be within the threshold.

[0098] Under the set storage mode, the second humidity sensor monitors the storage humidity R inside the storage cavity 3. N The first fan is activated promptly to increase the airflow speed on the surface of the first moisture-permeable membrane 4, thereby adjusting the water vapor permeability of the membrane 4 and effectively regulating the humidity inside the storage cavity 3. Ultimately, the humidity inside the storage cavity 3 is maintained at a constant level (within the set humidity range). The humidity monitored by the second humidity sensor inside the storage cavity is recorded as the storage humidity R. N .

[0099] In this invention, the storage cavity 3 is equipped with multiple cameras, which capture images of the storage cavity from different angles. In this embodiment, the controller is configured to acquire the types of food, the food space ratio γ, and the storage humidity R inside the storage cavity after the storage device enters the storage mode. N Storage humidity change rate α r Among them, the controller acquires the types of ingredients, the space occupied by the ingredients (γ), and the rate of change in storage humidity (α). r As this is existing technology, it will not be elaborated further. As one feasible approach, the controller's setting for acquiring the food space ratio γ can be configured as follows: The controller includes an acquisition module, a matching module, and a calculation module. The acquisition module acquires images of the storage cavity taken by multiple cameras from different angles, and pairs them to obtain multiple image pairs. An extraction module is coupled to the acquisition module and is used to extract multiple feature points from each image. The matching module is coupled to the extraction module and is used to match each feature point of one image in the same image pair with all feature points of the other image to obtain matched feature point pairs. The calculation module is coupled to the matching module and is used to calculate the proportion of the food in the storage space using the matched feature point pairs. This invention, by setting up multiple cameras and taking images of the food inside the storage cavity from different angles, obtains images of the food from various angles. Then, feature point matching is performed pairwise based on the images from different angles to improve the accuracy of the measurement results. This allows for accurate location of the food's spatial position information. Furthermore, the proportion of the food in the storage cavity is estimated based on the matched feature points, resulting in a highly accurate measurement result. Moreover, taking images of the food from different angles avoids visual blind spots, making the final measurement result more accurate.

[0100] The controller uses a camera to capture the types of food inside the storage cavity and controls multiple light sources to emit light based on the types of food, thereby enhancing the freshness of the food through light.

[0101] like Figure 17 As shown, when γ < γ0 and RN <R Z0 When the controller humidifies the storage cavity, the humidification device humidifies the storage cavity. In this embodiment, a humidification device with a second permeable membrane is used as an example. The controller controls the water valve to open, the absorbent membrane absorbs water, and the humidity inside the storage cavity increases through the second permeable membrane. When the proportion of food space inside the storage cavity is greater than the set food proportion threshold, due to the small amount of food, the moisture from the food will be released to the surrounding area of ​​the storage cavity. This may cause the food to lose moisture. The humidification device can promptly increase the humidity inside the storage cavity and reduce the moisture loss from the food caused by the activation of the light-enhancing unit, thus improving the food preservation effect.

[0102] When γ≥γ0, the controller initiates the dehumidification program; where γ0 is the food content threshold. When the food content in the storage cavity exceeds the set food content threshold, the large quantity of food significantly impacts the humidity within the storage cavity, potentially causing rapid changes in humidity and disrupting the constant humidity state. This invention incorporates a dehumidification program to adjust the humidity in the storage cavity in a timely manner, maintaining a constant humidity level.

[0103] The dehumidification process includes:

[0104] In α r1 ≤α r <α r2 And R N ≥R Z1 At that time, the controller controls the first fan to run at the first power P1 until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ; where α r1 α is the threshold for the first rate of change of humidity. r2 R is the second humidity change rate threshold. Z0 R represents the storage humidity threshold under the given storage mode. Z1 R is the first humidity threshold; Z0 <R Z1 .

[0105] As an feasible approach, in α r2 ≤α r <α r3 And R N ≥R Z2 At that time, the controller controls the first fan to run at the second power P2 until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 Among them, R Z2 The second humidity threshold; R Z1 <R Z2 P2 > P1.

[0106] As another feasible approach, in α r3 ≤α r And R N ≥R Z3 At that time, the controller controls the first fan to operate at the third power P3, and the refrigeration unit operates until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 Among them, R Z3 R is the third humidity threshold. Z0 <R Z3 Among them, R Z0 <R Z1 <R Z2 <R Z3 P1 < P2 ≤ P3.

[0107] As one feasible approach, the rated power of the first fan is denoted as P0, where P1 < P0 < P2; specifically, P1 = 50% P0, P2 ≤ P3 = 100% P0 or P2 ≤ P3 = 120% P0. In this embodiment, P1 = 50% P0, P2 = P3 = 100% P0 or P2 = P3 = 120% P0.

[0108] Under different humidity change rates and real-time humidity conditions, the controller operates the first fan at different power levels. This allows for rapid humidity adjustment and efficient control of the fan's power to reduce energy consumption. Furthermore, controlling the simultaneous operation of the first fan and the refrigeration unit effectively improves dehumidification efficiency. Under the set humidity conditions, the controller controls the first fan to accelerate airflow on the side of the first permeable membrane closest to the storage compartment (outside the storage cavity), reducing the humidity level outside the sealed storage cavity (especially the first permeable membrane). This creates a significant humidity difference, preventing the first permeable membrane from becoming inefficient or completely ineffective, thus preventing moisture from escaping the storage cavity. This increases the permeability, reducing the accumulation of moisture from food inside the storage cavity, thus preventing condensation or frost formation and preventing mold growth. It also prevents food from being blown away by the airflow during dehumidification, thus avoiding moisture loss. Additionally, it promotes airflow within the storage compartment, promoting uniform cooling. Meanwhile, in α... r3 ≤α r And R N ≥R Z3 Time (in this embodiment, combined with α) r1 α r2 (In a setting where the humidity change rate is rapidly increasing and the humidity value is very high), the first fan and the refrigeration unit operate simultaneously to increase the chemical potential difference between the inside and outside of the storage cavity 3 (ΔM = M). o -M i =R(T) o lnp o -T ilnp i This increases the spontaneous migration rate of water vapor from the storage cavity to the outside of the first permeable membrane, thereby improving dehumidification efficiency and quickly achieving humidity balance; effectively ensuring constant humidity within the storage cavity. It should be noted that in this invention, α... r3 ≤α r And R N ≥R Z3 The settings are the basic settings; α can be added as needed. r1 ≤α r <α r2 And R N ≥R Z1 Settings and / or α r2 ≤α r <α r3 And R N ≥R Z2 The settings allow for more precise humidity control and effectively reduce energy consumption.

[0109] As another feasible approach, such as Figures 18-19 As shown, a second fan is installed inside the storage cavity; in R N When R2 is greater than or equal to R2, the second fan starts; where R2 is the second dehumidification threshold, and R2 > R Z2 Or R2 > R Z3 That is, the storage cavity has a medium humidity (R2 > R). Z2 or high humidity (R2>R) Z3 When the second fan operates, the airflow from its outlet promotes air circulation within the storage cavity to prevent condensation due to excessive humidity. Simultaneously, the airflow from the second fan passes through the first moisture-permeable membrane, accelerating the water vapor permeation rate for rapid dehumidification and preventing condensation from forming due to excessive humidity. The first and second fans work in conjunction (R2≥R...). Z2 Or, the first fan, the second fan, and the refrigeration unit can be combined (R2≥R) Z3 It can quickly regulate the humidity inside the storage cavity and prevent food from becoming moldy.

[0110] Additionally, in α r2 ≤α r <α r3 And R N ≥R Z2 Sometimes or in α r3 ≤α r And R N ≥R Z3 At that time, the controller controls the operation of the second fan. Specifically, in α r2 ≤α r <α r3 And R N ≥R Z2At that time, the second humidity threshold R is preset. Z2 =Second dehumidification threshold R2; as an alternative method, such as Figure 20 As shown, a controller can be set to operate the first and second fans simultaneously until the storage humidity R in the storage chamber is reached. N Reaching the storage humidity threshold R Z0 At this time, the first and second fans work together to quickly regulate the humidity inside the storage cavity, preventing the food from becoming moldy. In α r3 ≤α r And R N ≥R Z3 At that time, the preset third humidity threshold R Z3 =Second dehumidification threshold R2; as an alternative method, such as Figure 21 As shown, a controller can be set to control the first fan, the second fan, and the refrigeration unit to work simultaneously until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 At this time, the first fan, the second fan, and the refrigeration unit work together to quickly regulate the humidity inside the storage cavity, preventing the food from becoming moldy.

[0111] In the above embodiment, the storage mode conversion is performed in R N >R Z0 At that time, the controller controls the first fan to run until the storage humidity R in the storage cavity is reached. N The storage humidity threshold R of the converted storage mode is reached. Z0 For example, switching from high humidity to medium humidity or low humidity.

[0112] The controller acquires the continuous closing time t of the storage device. After the continuous closing time of the storage device reaches the set time threshold t0, the controller controls the first fan to run according to the set humidity level (the default storage mode set by the program or the storage mode set by the user) until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 .

[0113] The controllers above control the first or second fan to operate at a specific power based on the humidity change rate and storage humidity, and control the operation of the refrigeration unit. By comprehensively considering both the humidity change rate and real-time humidity, the controllers can quickly adjust the humidity in the storage cavity to keep it constant and effectively improve the preservation effect. On the other hand, they can also control the fan operating power in a targeted manner to reduce energy consumption.

[0114] like Figure 17 As shown, one method for controlling the constant humidity and freshness of the refrigerator described above is as follows:

[0115] S1: Set the storage mode, and specify the storage humidity threshold R corresponding to the set storage mode. Z0 When the storage humidity is lower than the current mode, the first fan starts, and the airflow from the first fan flows over the surface of the first moisture-permeable membrane, effectively accelerating the water vapor permeability of the first moisture-permeable membrane, and the humidity in the storage cavity 3 decreases rapidly; the second humidity sensor monitors the humidity value in the storage cavity 3, and when the humidity R in the storage cavity... N To reach the set storage humidity threshold R Z0 At that time, the first fan stopped working.

[0116] S2: Under the set storage mode, the second humidity sensor monitors the humidity value inside the storage cavity 3 in real time to obtain the rate of change of storage humidity α inside the storage cavity. r Storage humidity R N Multiple cameras take pictures of the storage cavity to obtain the food space ratio γ; the controller starts the dehumidification program based on the food space ratio γ; and adjusts the dehumidification based on the storage humidity change rate α. r and storage humidity R N This controls the first fan and adjusts the humidity in the storage cavity 3 in a timely manner, thereby keeping the humidity in the storage cavity 3 constant.

[0117] Specifically, in this embodiment, each storage mode is configured with one food percentage threshold, three humidity change rate thresholds, and three humidity thresholds, denoted as: food percentage threshold γ0, first humidity change rate threshold α, etc. r1 Second humidity change rate threshold α r2 The third humidity change rate threshold α r3 First humidity threshold R Z1 Second humidity threshold R Z2 Third humidity threshold R Z3 Among them, the first humidity change rate threshold α r1 <Second humidity change rate threshold α r2 <Third humidity change rate threshold α r3 Storage humidity threshold R Z0 <First humidity threshold R Z1 <Second humidity threshold R Z2 <Third humidity threshold R Z3 .

[0118] S21: During storage under the set storage mode, when γ < γ0 and R N <R Z0 At this time, the controller controls the humidification device to work; specifically, the controller controls the water valve to open, the water-absorbing membrane absorbs water, and the humidity in the storage cavity is increased through the second moisture-permeable membrane;

[0119] S22: During storage in the set storage mode, when γ≥γ0, the controller initiates the dehumidification program; specifically, the dehumidification program includes:

[0120] S23: During storage under the set storage mode, the first humidity change rate threshold α r1 ≤ Storage humidity change rate α r <Second humidity change rate threshold α r2 And the storage humidity R N ≥ First humidity threshold R Z1 At that time, the first fan starts and runs at the first power P1 until the storage humidity R in the storage cavity 3 is reached. N Reaching the storage humidity threshold R Z0 The first fan stopped working.

[0121] As an feasible approach, the rated power of the first fan is denoted as P0, and P1 = 50% of P0.

[0122] S24: During storage under the set storage mode, at the second humidity change rate threshold α r2 ≤ Storage humidity change rate α r <Third humidity change rate threshold α r2 And the storage humidity R N ≥Second humidity threshold R Z2 At that time, the first fan starts and operates at the second power P2 until the storage humidity R in the storage cavity 3 is reached. N Reaching the storage humidity threshold R Z0 The first fan stops working. As an feasible approach, P2 = 100% P0 or P2 = 120% P0 to quickly achieve humidity regulation.

[0123] S25: During storage under the set storage mode, at the third humidity change rate threshold α r3 ≤ Storage humidity change rate α r And the storage humidity R N ≥Third humidity threshold R Z3 At this time, the first fan starts and operates at the second power P3. Simultaneously, the refrigeration unit operates (the supply fan and evaporator operate) until the storage humidity R in the storage cavity 3 is reached. N Reaching the storage humidity threshold R Z0 The first fan and refrigeration unit (supply fan and evaporator) stop working. As an feasible approach, P3 = P2 to quickly complete humidity regulation.

[0124] like Figure 18 As shown, as another feasible approach, a first dehumidification threshold R1 is preset to be ≤ a first humidity threshold R. Z1<Second humidity threshold R Z2 <Second dehumidification threshold R2; After step S24, add step S3; Specifically, step S3 is: at the storage humidity R N When the humidity level is ≥ the second dehumidification threshold R2 (the humidity threshold that controls the start of the second fan), the second fan is activated. At this time, the first fan and the second fan work simultaneously to dehumidify at high speed and quickly adjust the humidity in the storage cavity 3 to the storage humidity threshold R2 of its storage mode. Z0 Wherein, the second dehumidification threshold R2 ≥ the second humidity threshold R Z2 ;

[0125] like Figure 19 As shown, as another feasible approach, a third humidity threshold R is preset. Z3 ≤Second dehumidification threshold R2; In the dehumidification process, after step S25, add step S3; The specific step S3 is: at the storage humidity R N When the humidity level is ≥ the second dehumidification threshold R2 (the humidity threshold that controls the start of the second fan), the second fan is activated. At this time, the first fan, the second fan, the supply fan, and the evaporator work simultaneously to dehumidify at high speed and quickly adjust the humidity in the storage cavity 3 to the storage humidity threshold R2 of its storage mode. Z0 .

[0126] like Figure 20 As shown, as another feasible approach, a second humidity threshold R is preset. Z2 = Second dehumidification threshold R2; An alternative to step S24 is: Second humidity change rate threshold α r2 ≤ Storage humidity change rate α r <Third humidity change rate threshold α r3 And the storage humidity R N ≥Second humidity threshold R Z2 At this time, the controller controls the second fan to operate, and the first and second fans work simultaneously until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 When performing this operation, step S3 is no longer set.

[0127] like Figure 21 As shown, as another feasible approach, a third humidity threshold R is preset. Z3 = Second dehumidification threshold R2; An alternative to step S25 is: at the third humidity change rate threshold α r3 ≤ Storage humidity change rate α r And the storage humidity R N ≥Third humidity threshold R Z3 At this time, the controller controls the second fan to operate, and the first fan, the second fan, and the refrigeration unit work simultaneously until the storage humidity R in the storage cavity is reached.N Reaching the storage humidity threshold R Z0 When performing this operation, step S3 is no longer set.

[0128] It should be noted that, under the above storage mode, the first and second fans operate at specific power levels based on the humidity change rate and storage humidity control. This comprehensive approach, considering both the humidity change rate and real-time humidity, controls the operation of the fans and refrigeration unit. On one hand, it quickly adjusts the humidity within the storage cavity, maintaining a constant humidity level and effectively improving preservation. On the other hand, it specifically controls the fan power to reduce energy consumption. Furthermore, this invention activates a dehumidification program when the food space reaches a set value, effectively controlling the food's impact on humidity to maintain a constant humidity level within the storage cavity.

[0129] In addition, the controller activates the light-enhancing unit according to the type of food to enter the set light-enhancing mode, which is independent of the above humidification and dehumidification modes; the activation of the humidification device works in conjunction with the light-enhancing mode to improve the preservation effect.

[0130] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A refrigerator, characterized in that... It includes: The container defines the storage space; A storage device, which is housed within the storage room; The storage device defines a sealed storage cavity, and a communication opening is formed on one side wall of the storage device; A first moisture-permeable membrane is disposed at the communication port of the storage device; A first fan is disposed on the side wall of the storage device having the first moisture-permeable membrane, and is located on the side of the side wall close to the storage compartment; the air outlet of the first fan faces the first moisture-permeable membrane, and the airflow from the air outlet of the first fan flows along the surface of the first moisture-permeable membrane. A humidifying device is provided inside the storage cavity for humidifying the storage cavity; A light-enhancing unit is located on the top of the storage device and is used to enhance the freshness of the food in the storage cavity by irradiation. The photo-enhancing unit includes: Multiple light sources, wherein the multiple light sources emit light of different wavelengths; among the multiple light sources, at least a red light source that emits red light with a wavelength range of 620-780nm, an orange light source with a wavelength range of 600-640nm, and a blue light source with a wavelength range of 407-505nm. A light guide plate is located on the light path of the light source; A second humidity sensor for detecting the humidity inside the storage cavity is provided inside the storage cavity; The refrigerator includes a controller; the controller is configured to acquire the food space ratio γ and storage humidity R in the storage compartment after the storage device enters the storage mode. N Storage humidity change rate α r ; When γ < γ0 and R N <R Z0 At that time, the controller controls the humidification device to increase the humidity in the storage cavity; When γ≥γ0, the controller initiates the dehumidification program; where γ0 is the food content threshold.

2. The refrigerator according to claim 1, characterized in that: The storage cavity is equipped with multiple cameras that capture images of the storage cavity from different angles. The controller obtains the types of food in the storage cavity through the cameras and controls the multiple light sources to emit light according to the types of food.

3. The refrigerator according to claim 2, characterized in that: The refrigerator includes a refrigeration unit, which has a second air outlet corresponding to the position of the first moisture-permeable membrane; the low-temperature airflow formed by the refrigeration unit enters the storage compartment through the second air outlet and flows through the first moisture-permeable membrane.

4. The refrigerator according to claim 3, characterized in that: The dehumidification process includes: In α r3 ≤α r And R N ≥R Z3 At that time, the controller controls the first fan to operate at the third power P3, and the refrigeration unit operates until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ; Where, α r3 R is the third humidity change rate threshold. Z3 R is the third humidity threshold. Z0 R represents the storage humidity threshold under the given storage mode. Z0 <R Z3 .

5. The refrigerator according to claim 4, characterized in that: The dehumidification process includes: in α r2 ≤α r <α r3 And R N ≥R Z2 At that time, the controller controls the first fan to operate at the second power P2 until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ; Where, α r2 R is the second humidity change rate threshold. Z2 The second humidity threshold; R Z2 <R Z3 P2≤P3.

6. The refrigerator according to claim 5, characterized in that: The dehumidification process includes: in α r1 ≤α r <α r2 And R N ≥R Z1 At that time, the controller controls the first fan to operate at a first power P1 until the storage humidity R in the storage cavity is reached. N Reaching the storage humidity threshold R Z0 ; Where, α r1 R is the first humidity change rate threshold. Z1 R is the first humidity threshold; Z0 <R Z1 <R Z2 P1 < P2.

7. The refrigerator according to claim 6, characterized in that: The rated power of the first fan is denoted as P0, where P1 < P0 < P2 ≤ P3.

8. The refrigerator according to any one of claims 1-7, characterized in that: The storage cavity is equipped with a second fan; the dehumidification process includes: In R N When R2 is greater than or equal to R2, the controller controls the second fan to operate; where R2 is the second dehumidification threshold, and R2 > R Z2 Or R2 > R Z3 .

9. The refrigerator according to claim 1, characterized in that: The storage cavity is equipped with a second fan; the dehumidification process includes: in α r2 ≤α r <α r3 And R N ≥R Z2 Sometimes or in α r3 ≤α r And R N ≥R Z3 At that time, the controller controls the second fan to operate.

Images