Fresh-keeping chamber and refrigerator

Abstract

The utility model provides a fresh-keeping chamber and a refrigerator, the fresh-keeping chamber comprises a housing, the housing is a rectangular structure, a cover plate is arranged on the housing, and the housing and the cover plate form a sealed cavity; the shell comprises a bottom plate and a fixing plate assembly, and the bottom plate is opposite to the cover plate in position; and the humidity adjusting device further comprises an interlayer and a humidity adjusting film, the interlayer is arranged on the bottom plate, and the humidity adjusting film is spliced with the plane of the cover plate. According to the heat preservation chamber, the cavity is sealed, the partition layer is arranged on the bottom plate, the heat exchange speed can be reduced so that constant temperature and humidity can be achieved, and condensation can be prevented while the humidity can be kept through the humidity adjusting film.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a fresh-keeping room and a refrigerator. Background Art

[0002] The refrigerator's fresh-keeping compartment provides a more optimal storage environment for fruits and vegetables through a dedicated moisture-maintaining zone and specialized temperature and humidity control technology, extending their shelf life while preserving their nutritional value and flavor. Located in a dedicated area within the refrigerator, the moisture-maintaining zone optimizes air circulation, temperature regulation, and humidity management to create near-natural storage conditions for fruits and vegetables.

[0003] The refrigerator's moisturizing and fresh-keeping area utilizes a variety of technologies to achieve this. To control temperature and humidity fluctuations, a sealed structure is employed to minimize the impact of the external environment on the area. This tightly sealed design effectively isolates external temperature and humidity fluctuations, ensuring a relatively stable internal environment. Furthermore, an intelligent temperature control system and humidity control devices, such as humidifiers and dehumidifiers, further regulate the temperature and humidity within the area to meet the preservation needs of different fruits and vegetables.

[0004] On the one hand, if the seal is too tight, while it can effectively isolate external interference, it can also significantly slow the cooling rate of the fruit and vegetable storage area, increasing energy consumption and delaying the time it takes to reach ideal storage conditions. Furthermore, because fruits and vegetables continuously evaporate during storage, the resulting water vapor easily condenses and freezes in a sealed environment, which not only affects the moisturizing effect but can also cause frostbite to the fruits and vegetables. Consequently, the cooling rate is slow and the water vapor condenses and freezes. Utility Model Content

[0005] The present application provides a fresh-keeping compartment and a refrigerator to solve the problems of slow cooling speed and condensation of water vapor.

[0006] In a first aspect, the present application provides a fresh-keeping compartment, comprising:

[0007] A housing having a rectangular structure and a cover plate provided on the housing, wherein the housing and the cover plate form a sealed cavity;

[0008] The housing includes a bottom plate and a fixing plate assembly, wherein the bottom plate is opposite to the cover plate;

[0009] a partition layer, the partition layer being arranged on the bottom plate;

[0010] The humidity-controlling film is spliced with the cover plate plane.

[0011] In some feasible embodiments, the following further comprises:

[0012] an air outlet, wherein the cover plate is arranged at one end of the air outlet;

[0013] a windshield strip, arranged on the cover plate;

[0014] An air door is arranged on the air outlet.

[0015] In some feasible embodiments, the difference between the length of the windshield strip and the length of the cover plate is the length of the air outlet;

[0016] The distance between one end of the windshield strip and the fixing plate assembly is 1-5 cm.

[0017] In some feasible embodiments, there are two bottom plates, and the two bottom plates form a cavity, which is a partition.

[0018] A sponge is disposed in the cavity.

[0019] In some feasible embodiments, an inner tray is further included, which is arranged on the bottom plate away from the cover plate. The bottom plate and the inner tray form a cavity, and the cavity is a partition. The height of the cavity is 2-5 mm.

[0020] In some feasible embodiments, the thickness of the humidity-controlling film is 0.5-5 mm, the area of the humidity-controlling film is 100-500 cm 2 , and the humidity sensitivity index is greater than 2.5.

[0021] In some feasible embodiments, a temperature sensor is further included, and the temperature sensor is disposed on the cover plate close to the sealed cavity.

[0022] In some feasible embodiments, the housing is provided with a slide rail and a handle, the fixing plate assembly includes a first fixing plate and a second fixing plate, the number of the first fixing plates is two, the number of the second fixing plates is two, the first fixing plates are arranged opposite to each other, the second fixing plates are arranged opposite to each other, the first fixing plate is connected to the second fixing plate, and the number of the slide rails is two, which are arranged on the first fixing plate;

[0023] The handle is disposed on the second fixing plate.

[0024] In a second aspect, the present application provides a refrigerator, comprising:

[0025] A box body, wherein a compartment is provided in the box body;

[0026] A fresh-keeping room is provided in the compartment.

[0027] As can be seen from the above technical solution, the present application provides a fresh-keeping chamber and refrigerator, the fresh-keeping chamber comprising: a rectangular housing with a cover plate disposed thereon, the housing and the cover plate forming a sealed cavity; the housing comprising a bottom plate and a fixed plate assembly, the bottom plate and the cover plate being positioned opposite each other; and a barrier layer and a humidity-controlling film, the barrier layer being disposed on the bottom plate and the humidity-controlling film being flatly spliced with the cover plate. The sealed cavity and the barrier layer disposed on the bottom plate reduce the heat exchange rate to achieve constant temperature and humidity. Furthermore, the humidity-controlling film prevents condensation while maintaining humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 A schematic diagram of the structure of the fresh-keeping compartment provided in an embodiment of the present application;

[0030] Figure 2 A schematic structural diagram of a refrigerator provided in an embodiment of the present application.

[0031] Illustration:

[0032] Among them, 1-fresh-keeping room, 11-shell, 12-cover, 121-humidity-control film, 122-wind shield, 123-air outlet, 2-refrigeration room, 21-air door. DETAILED DESCRIPTION

[0033] The following embodiments are described in detail, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numbers in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following embodiments are not intended to represent all possible implementations consistent with the present application. They are merely examples of systems and methods consistent with certain aspects of the present application, as detailed in the claims.

[0034] Storage temperature and humidity have a direct impact on the preservation and quality of fresh fruits and vegetables. At higher temperatures, microbial reproduction speeds up, leading to accelerated spoilage of fruits and vegetables; at lower storage temperatures, the growth of microorganisms can be inhibited, delaying the spoilage of fruits and vegetables; at a specific storage temperature, the original flavor of fruits and vegetables can be maintained, while temperatures that are too high or too low will cause them to lose taste and flavor; suitable storage temperature can maintain the bright color and appearance of fruits and vegetables, high temperature will accelerate the browning of fruits and vegetables, and low temperature will cause frostbite and discoloration of fruits and vegetables.

[0035] The refrigerator's moisturizing and fresh-keeping area utilizes a variety of technologies to achieve this. To control temperature and humidity fluctuations, a sealed structure is employed to minimize the impact of the external environment on the area. This tightly sealed design effectively isolates external temperature and humidity fluctuations, ensuring a relatively stable internal environment. Furthermore, an intelligent temperature control system and humidity control devices, such as humidifiers and dehumidifiers, further regulate the temperature and humidity within the area to meet the preservation needs of different fruits and vegetables.

[0036] On the one hand, if the seal is too tight, while it can effectively isolate external interference, it can also significantly slow the cooling rate of the fruit and vegetable storage area, increasing energy consumption and delaying the time it takes to reach ideal storage conditions. Furthermore, because fruits and vegetables continuously evaporate during storage, the resulting water vapor easily condenses and freezes in a sealed environment, which not only affects the moisturizing effect but can also cause frostbite to the fruits and vegetables. Consequently, the cooling rate is slow and the water vapor condenses and freezes.

[0037] In order to solve the problem of slow cooling speed and condensation of water vapor in the fresh-keeping room, Figure 1 As shown, some embodiments of the present application provide a fresh-keeping chamber, including: a shell 11 which is the peripheral structure of the fresh-keeping chamber, used to support and protect the components inside the fresh-keeping chamber, and the shell 11 is a rectangular structure. A cover plate 12 is provided on the shell 11, and the cover plate 12 is located on the top of the shell 11. The shell 11 is sealed to the cover plate 12 and the edge of the shell 11 to form a sealed cavity. The sealed cavity is an enclosed space formed by the shell 11 and the cover plate 12, which is used to maintain the stability and consistency of the environment inside the fresh-keeping chamber and prevent outside air, water vapor, etc. from entering the interior of the fresh-keeping chamber.

[0038] The housing 11 includes a bottom plate and a fixed plate assembly. The bottom plate is positioned opposite the cover plate 12. In some embodiments, the fixed plate assembly includes a first fixed plate and a second fixed plate. There are two first fixed plates and two second fixed plates. The first fixed plates are arranged opposite each other and the second fixed plates are arranged opposite each other. The first fixed plates are connected to the second fixed plates. In this embodiment, the housing 11 has a drawer structure. Both the housing 11 and the cover plate 12 can be made of plastic.

[0039] The interlayer is placed on the bottom plate and has a thickness of 2-5mm. This thickness ensures adequate insulation while avoiding structural instability or excessive space occupation caused by an overly large cavity. Although the height is relatively small, it allows for air circulation, helping to evenly distribute the cold air and improve the preservation effect.

[0040] In some embodiments, there are two bottom plates, forming a cavity. This cavity serves as a barrier and can be filled with various materials to achieve thermal insulation. In this embodiment, a sponge is placed within the cavity, which has excellent hygroscopic and cushioning properties. Filling the cavity with the sponge, utilizing its hygroscopic and cushioning properties, absorbs moisture within the cavity, reducing ice formation caused by condensation. The sponge also provides additional insulation, further enhancing the thermal performance of the fresh food compartment.

[0041] In some embodiments, an inner tray can also be used to create a barrier layer. The inner tray is placed on the bottom plate away from the cover plate 12. The bottom plate and the inner tray form a cavity, which serves as the barrier layer. The inner tray is used to support food or containers, and the cavity between the inner tray and the bottom plate can also serve as a barrier to maintain heat, isolate moisture, or provide additional buffer space. A certain gap is maintained between the inner tray and the bottom plate to form a cavity. This cavity acts as a barrier, effectively isolating the interior of the fresh-keeping compartment from the effects of external temperature, improving thermal insulation performance.

[0042] The housing 11 and cover 12 are both made of plastic, and the humidity-controlling film 121 is joined to the cover 12. This film is used to regulate the humidity within the fresh-keeping compartment, preventing excessively high humidity from causing water vapor to condense into droplets or ice crystals. The humidity-controlling film 121 maintains an appropriate humidity level by absorbing or releasing moisture. Both the housing 11 and cover 12 can be made of plastic, and the humidity-controlling film 121 is joined to the plastic cover 12.

[0043] In some embodiments, the humidity control film 121 has a thickness of 0.5-5 mm and an area of 100-500 cm 2 , the humidity index is greater than 2.5. The thickness of the humidity control film 121 refers to its vertical dimension. 0.5-5mm can ensure sufficient humidity control performance while alleviating the cost increase or space occupation problem caused by excessive thickness. The area of the humidity control film 121 refers to the plane size it covers, 100-500cm 2 This ensures that the humidity-controlling film 121 effectively covers key areas within the fresh-keeping compartment, thereby effectively regulating the overall humidity. The humidity sensitivity index (HSI) measures the humidity-controlling performance of the humidity-controlling film 121, indicating the amount of moisture it absorbs or releases per unit humidity change. In this embodiment, a HSI greater than 2.5 indicates that the humidity-controlling film 121 has high humidity sensitivity and can quickly respond to changes in ambient humidity.

[0044] It is understandable that the humidity control film 121 with a suitable thickness, area and humidity sensitivity index can be selected according to the specific needs and size of the fresh-keeping compartment. Factors such as humidity control performance, cost, and space occupation can be comprehensively considered.

[0045] In some embodiments, the fresh-keeping chamber further includes: an air outlet 123 and an air damper 21. The cover plate 12 is arranged at one end of the air outlet 123, and the air damper 21 is arranged on the air outlet 123. The air outlet 123 is used to evenly distribute the cold air to every corner of the fresh-keeping chamber to ensure that the temperature drops evenly. In addition, this air outlet 123 is only provided for the fresh-keeping chamber and is separately connected to the refrigeration system. The air damper 21 is arranged on the air outlet 123 to control the degree of opening of the air outlet 123, thereby adjusting the amount of cold air entering the fresh-keeping chamber. By adjusting the position of the air damper 21, the speed and direction of the airflow can be changed, which can be suitable for different seasons or for storing different types of food.

[0046] A windshield 122 is located near the air outlet 123. Installed on the cover 12, it reduces the possibility of cold air blowing directly onto the surface of items, preventing frostbite or other damage caused by localized low temperatures. Furthermore, the windshield 122 helps regulate the airflow, distributing the cold air more evenly within the fresh-keeping compartment. The combined effect of the windshield 122 and the damper 21 ensures a more even distribution of cold air within the fresh-keeping compartment, reducing temperature fluctuations and extending the shelf life of food.

[0047] In some embodiments, the difference between the length of the windshield 122 and the length of the cover 12 is the length of the air outlet 123; the distance between one end of the windshield 122 and the fixed plate assembly is 1-5 cm. It is understood that the longer the air outlet 123 is, the greater the amount of cold air allowed to enter the fresh food compartment, and vice versa. The allowed distance is set to 1-5 cm. This gap allows the cold air to diffuse smoothly into the fresh food compartment after exiting the air outlet 123, mitigating temperature fluctuations caused by the cold air directly impacting the food.

[0048] To monitor the temperature inside the fresh-keeping chamber, some embodiments further include a temperature sensor, which is disposed on the cover plate 12 near the sealed cavity. The temperature sensor can sense and measure the ambient temperature. In this embodiment, the temperature sensor is used to monitor the temperature inside the fresh-keeping chamber in real time to ensure that it remains within an appropriate range, thereby extending the shelf life of the food. When the temperature exceeds a preset range, the temperature sensor can immediately provide feedback to the control system, triggering appropriate adjustment measures, such as starting the refrigeration system or adjusting the opening of the damper 21. This instant feedback mechanism helps maintain the stability of the temperature inside the fresh-keeping chamber and ensures that food or other stored items are in the most suitable storage environment.

[0049] To facilitate user access to the fresh food compartment, in some embodiments, the housing 11 is equipped with two rails and a handle. The rails are mounted on the first fixed plate, while the handle is mounted on the second fixed plate. The rails are track devices mounted on the fixed plate to support and guide the smooth movement of the housing 11. The rails allow users to easily pull out or push in the housing 11, making it easy to store and retrieve items. The handle and rails work together to control the housing 11, making it easy to store and retrieve items.

[0050] During fruit and vegetable storage, if the storage temperature is too low, it can cause frostbite, resulting in loss of flavor and color. Excessively high temperatures can accelerate the growth of microorganisms and respiration in fruits and vegetables, accelerating their aging and decay. Excessively high humidity can accelerate the decay of fruits and vegetables, while excessively low humidity can cause them to transpire and wilt, leading to a loss of quality. Therefore, in this embodiment, the temperature of the fresh-keeping compartment can be set to 1°C, with an unloaded temperature fluctuation range of ±1°C. The humidity of the fresh-keeping compartment is set to 85%, with an unloaded humidity fluctuation range of ±5%. Fruits and vegetables include leafy vegetables, melons, root vegetables, berries, citrus fruits, stone fruits, and pome fruits.

[0051] It is understandable that the fresh-keeping room of the present application can be set in the cold storage room 2 of different refrigeration equipment. When set in a refrigerator, the startup parameter is not higher than 1.5°C, and the shutdown parameter is not higher than 1°C.

[0052] See also Figure 2 Based on the above-mentioned fresh-keeping compartment, some embodiments of the present application further provide a refrigerator, comprising: a housing, a compartment provided within the housing, and a fresh-keeping compartment 1 provided within the compartment. The compartment is a refrigerating compartment 2, and the fresh-keeping compartment 1 is drawn from the refrigerating compartment 2 via a slide rail on the housing 11.

[0053] It is understood that the refrigerator provided in the embodiments of the present application is a refrigeration device that, to achieve refrigeration and operation, includes at least a refrigeration system, a cooling system, a control system, and a housing. The refrigeration system is used to generate a cooling effect, the cooling system is used to maintain a low-temperature environment, the control system is used to control the temperature and humidity within the refrigerator, and the housing is used to provide storage space. It is understood that the refrigeration system, cooling system, and control system include specific components that enable the aforementioned functions.

[0054] In some embodiments, the refrigeration system includes a compressor, a condenser, an evaporator, and a throttling device. The compressor is used to compress the refrigerant gas, increase the pressure and temperature, and thus promote the flow of refrigerant in the system. During the compression process, the refrigerant changes from a low-pressure, high-temperature gas to a high-pressure, high-temperature gas, thereby producing a refrigeration effect. The condenser is used to cool the high-temperature, high-pressure gas discharged from the compressor into a liquid state. Heat is released through the heat sink, and the refrigerant gas is converted into a liquid state, ready to enter the next step of the refrigeration cycle. The evaporator is used to absorb heat in the refrigeration system. The refrigerant evaporates from a liquid state to a gas state in the evaporator, absorbing heat from the surrounding environment, thereby achieving the purpose of lowering the temperature inside the refrigerator. The throttling device may include an expansion valve and a capillary tube, which are used to adjust the flow rate of the refrigerant, reduce its pressure, and make it become a low-temperature, low-pressure gas-liquid mixed state, ready to enter the evaporator.

[0055] In some embodiments, the cooling system includes a fan that is connected to the evaporator. The fan circulates air between the compartments, such as the freezer and refrigerator compartments 2, transferring heat to the evaporator to help maintain a low temperature environment inside the refrigerator.

[0056] It should be noted that the above example is merely a simple division of the functions of the refrigerator and does not constitute a limitation on the specific structure of the refrigerator in the embodiment of the present application.

[0057] As can be seen from the above technical solution, the present application provides a fresh-keeping chamber and a refrigerator, wherein the fresh-keeping chamber comprises: a shell 11, the shell 11 being a rectangular structure, a cover plate 12 being provided on the shell 11, the shell 11 and the cover plate 12 forming a sealed cavity; the shell 11 comprising a bottom plate and a fixed plate assembly, the bottom plate being positioned opposite the cover plate 12; and an interlayer and a humidity-controlling film 121, the interlayer being provided on the bottom plate, and the humidity-controlling film 121 being planarly spliced with the cover plate 12. The sealed cavity and the interlayer provided on the bottom plate can reduce the heat exchange rate to achieve constant temperature and humidity. Furthermore, the humidity-controlling film 121 can prevent the formation of condensation while maintaining humidity.

[0058] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without expending creative work shall fall within the scope of protection of this application.

Claims

1. A fresh-keeping room, characterized in that: include: A housing having a rectangular structure and a cover plate provided on the housing, wherein the housing and the cover plate form a sealed cavity; The housing includes a bottom plate and a fixing plate assembly, wherein the bottom plate is opposite to the cover plate; a partition layer, the partition layer being arranged on the bottom plate; The humidity-controlling film is spliced with the cover plate plane.

2. The fresh-keeping compartment according to claim 1, characterized in that: Also includes: an air outlet, wherein the cover plate is arranged at one end of the air outlet; a windshield strip, arranged on the cover plate; An air door is arranged on the air outlet.

3. The fresh-keeping compartment according to claim 2, characterized in that: The difference between the length of the windshield strip and the length of the cover plate is the length of the air outlet; The distance between one end of the windshield strip and the fixing plate assembly is 1-5 cm.

4. The fresh-keeping compartment according to claim 1, characterized in that: There are two bottom plates, and the two bottom plates form a cavity, which serves as a partition. A sponge is disposed in the cavity.

5. The fresh-keeping compartment according to claim 1, characterized in that: It also includes an inner tray, which is arranged on the bottom plate away from the cover plate. The bottom plate and the inner tray form a cavity, which is a partition layer and has a height of 2-5 mm.

6. The fresh-keeping compartment according to claim 1, characterized in that: The thickness of the humidity-control film is 0.5-5 mm, the area of the humidity-control film is 100-500 cm 2 , and the humidity sensitivity index is greater than 2.

5.

7. The fresh-keeping compartment according to claim 1, characterized in that: A temperature sensor is also included, and the temperature sensor is arranged on the cover plate close to the sealed cavity.

8. The fresh-keeping compartment according to claim 1, characterized in that: The housing is provided with a slide rail and a handle, the fixing plate assembly includes a first fixing plate and a second fixing plate, the number of the first fixing plates is two, the number of the second fixing plates is two, the first fixing plates are arranged opposite to each other, the second fixing plates are arranged opposite to each other, the first fixing plate is connected to the second fixing plate, the number of the slide rails is two, and they are arranged on the first fixing plate; The handle is disposed on the second fixing plate.

9. A refrigerator, characterized in that: include: A box body, wherein a compartment is provided in the box body; The compartment is provided with a fresh-keeping compartment according to any one of claims 1 to 8.

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