Preservation device and refrigerator

Abstract

The application provides a fresh-keeping device and a refrigerator. The fresh-keeping device comprises a box body, a drawer frame arranged in the box body, an accommodating space formed between the drawer frame and the box body, at least two drawers movably arranged on the drawer frame, each of the drawers forming a closed space, a gas adjusting structure arranged in the accommodating space, the closed space being communicated with the accommodating space through the gas adjusting structure, and a heating mechanism arranged on the drawer frame and capable of heating the closed space. The fresh-keeping device and the refrigerator provided by the application can effectively increase the temperature adjusting range of each closed space by heating the closed space with the heating mechanism, can adjust the temperature of the closed space according to the needs of users, can meet the diversified needs of users, and can improve the use experience of users.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a food preservation device and a refrigerator. Background Technology

[0002] With the continuous improvement of living standards and dietary structure, people have higher and higher requirements for the freshness of fruits and vegetables and the durability of food preservation. They not only require fruits and vegetables to maintain their sensory freshness, but also require that the nutrients in fruits and vegetables be preserved to the maximum extent.

[0003] Active modified atmosphere packaging (APAC) technology uses a vacuum pump to extract air from the inside of the drawer. During extraction, the modified atmosphere membrane component isolates air components such as nitrogen, thereby reducing the oxygen concentration inside the drawer and inhibiting the aerobic respiration of fruits and vegetables.

[0004] However, in the current technology, the refrigerator's crisper drawer can only adjust the oxygen concentration, and its internal temperature can only be adjusted according to the refrigerator's cooling capacity. The temperature adjustment range is limited and cannot meet the diverse needs of users. Summary of the Invention

[0005] In order to solve the technical problem of the limited functionality of the food preservation drawer in the prior art, a food preservation device and refrigerator with a heating mechanism to regulate the temperature of the sealed space are provided.

[0006] A food preservation device, comprising:

[0007] Box;

[0008] A drawer frame is disposed inside the box body, and an accommodating space is formed between the drawer frame and the box body;

[0009] At least two drawers, said drawers being movably mounted on said drawer frame, and each said drawer forming a sealed space;

[0010] A modified atmosphere structure is disposed within the containment space, and the sealed space is connected to the containment space through the modified atmosphere structure;

[0011] A heating mechanism is provided on the drawer frame and is capable of heating the enclosed space.

[0012] The preservation device also includes a partition, which is disposed inside the drawer frame and divides the drawer frame into at least two installation spaces, each of which contains one drawer, and the heating mechanism is disposed between the partition and the drawer.

[0013] The partition divides the drawer frame into a first installation space and a second installation space. The drawer includes a first drawer and a second drawer. The first drawer is disposed in the first installation space, and the second drawer is disposed in the second installation space. The heating mechanism includes a first heating mechanism and a second heating mechanism. The first heating mechanism is disposed between the first drawer and the partition, and the second heating mechanism is disposed between the second drawer and the partition.

[0014] The heating mechanism includes an aluminum foil heater.

[0015] The preservation device also includes an air extraction structure, which is disposed within the containment space, and the air extraction inlet of the air extraction structure is connected to the sealed space through the modified atmosphere structure.

[0016] Each modified atmosphere structure corresponds one-to-one with the sealed space, and the air inlet of each modified atmosphere structure is connected to the corresponding sealed space. All air outlets of each modified atmosphere structure are connected to the extraction structure.

[0017] An on / off mechanism is provided between the air outlet of the modified atmosphere structure and the air extraction structure.

[0018] The preservation device also includes a pressure detection mechanism, which is located within the sealed space and is electrically connected to the on / off mechanism.

[0019] The modified atmosphere structure includes a modified atmosphere membrane assembly for separating oxygen. The modified atmosphere membrane assembly is disposed on the drawer frame, and the modified atmosphere inlet of the modified atmosphere membrane assembly is connected to the sealed space, while the modified atmosphere outlet of the modified atmosphere membrane assembly is connected to the exhaust inlet.

[0020] The modified atmosphere structure also includes a moisturizing membrane assembly for separating water vapor. The moisturizing membrane assembly is disposed on the drawer frame, and the moisturizing air inlet of the moisturizing membrane assembly is connected to the sealed space, and the moisturizing air outlet of the moisturizing membrane assembly is connected to the exhaust inlet.

[0021] A refrigerator, comprising the aforementioned preservation device.

[0022] The preservation device and refrigerator provided by this invention use a heating mechanism to heat the sealed space, thereby effectively increasing the temperature adjustment range of each sealed space. The temperature of the sealed space can be adjusted according to the user's needs. For example, it can simultaneously meet the needs of seafood and meat (-3-0℃), fruits and vegetables (3-5℃), and mothers and infants (8-12℃), satisfying diverse user needs and improving the user experience. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the structure of the preservation device provided in an embodiment of the present invention;

[0024] Figure 2 A perspective view of the preservation device provided in an embodiment of the present invention;

[0025] In the picture:

[0026] 1. Cabinet; 2. Drawer frame; 11. Storage space; 31. Sealed space; 32. First drawer; 33. Second drawer; 5. Heating mechanism; 6. Divider; 7. Exhaust system; 41. Modified atmosphere membrane assembly; 42. Moisture-retaining membrane assembly. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0028] like Figure 1 and Figure 2 The preservation device shown includes: a cabinet 1; a drawer frame 2, which is disposed within the cabinet 1, and forms a receiving space 11 between the drawer frame 2 and the cabinet 1; at least two drawers, which are movably disposed on the drawer frame 2, and each drawer constitutes a sealed space 31; a modified atmosphere structure, which is disposed within the receiving space 11, and the sealed space 31 is connected to the receiving space 11 through the modified atmosphere structure; and a heating mechanism 5, which is disposed on the drawer frame 2 and is capable of heating the sealed space 31. By using the heating mechanism 5 to heat the sealed space 31, the temperature adjustment range of each sealed space 31 is effectively increased. The temperature of the sealed space 31 can be adjusted according to the user's needs, for example, simultaneously meeting the needs of seafood and meat (-3-0℃), fruits and vegetables (3-5℃), and infants (8-12℃), satisfying diverse user needs and improving the user experience.

[0029] Specifically, the drawer is equipped with a handle cover, and the handle cover and the drawer frame 2 together form the enclosed space 31.

[0030] The preservation device also includes a partition 6, which is disposed within the drawer frame 2 and divides the drawer frame 2 into at least two installation spaces. Each installation space contains one drawer, and the heating mechanism 5 is disposed between the partition 6 and the drawer. The partition 6 separates the interior of the drawer frame 2 and simultaneously isolates the temperature between the sealed spaces 31, preventing gas and temperature exchange between the sealed spaces 31 and ensuring reliable sealing.

[0031] As one implementation method, such as Figure 1 As shown, the partition 6 divides the drawer frame 2 into a first installation space and a second installation space. The drawer includes a first drawer 32 and a second drawer 33. The first drawer 32 is disposed in the first installation space, and the second drawer 33 is disposed in the second installation space. The heating mechanism 5 includes a first heating mechanism and a second heating mechanism. The first heating mechanism is disposed between the first drawer 32 and the partition 6, and the second heating mechanism is disposed between the second drawer 33 and the partition 6. The first heating mechanism can independently heat the sealed space 31 formed by the first drawer 32 to regulate the temperature inside the first drawer 32; similarly, the second heating mechanism can independently heat the sealed space 31 formed by the second drawer 33 to regulate the temperature inside the second drawer 33.

[0032] The heating mechanism 5 includes an aluminum foil heater.

[0033] The preservation device also includes an air extraction structure 7, which is disposed within the accommodating space 11. The air extraction inlet of the air extraction structure 7 is connected to the sealed space 31 through the modified atmosphere structure. By using the air extraction structure 7 to extract air from the sealed space 31, the amount of oxygen and water vapor in the sealed space 31 is reduced, thereby avoiding problems such as spoilage of goods and ensuring preservation effect.

[0034] Each modified atmosphere structure corresponds one-to-one with a sealed space 31, and the air inlet of each modified atmosphere structure is connected to the corresponding sealed space 31. All air outlets of the modified atmosphere structures are connected to the extraction structure 7. The extraction structure 7 can extract air from the corresponding sealed space 31 through the modified atmosphere structure, thereby removing substances (water vapor, oxygen, etc.) that need to be discharged from the sealed space 31, thus meeting the preservation requirements of the sealed space 31.

[0035] A switching mechanism is provided between the air outlet of the modified atmosphere structure and the air extraction structure 7. When the sealed space 31 needs to discharge oxygen and / or water vapor, the switching mechanism is activated, and the negative pressure generated by the air extraction structure 7 can draw air into the sealed space 31 through the corresponding modified atmosphere structure. When the sealed space 31 does not need to discharge oxygen and / or water vapor, the switching mechanism is deactivated.

[0036] The preservation device also includes a pressure detection mechanism, which is disposed within the sealed space 31 and electrically connected to the on / off mechanism. The pressure detection mechanism obtains the pressure difference between the inside and outside of the sealed space 31. When the pressure difference is less than a set pressure difference, it indicates that the sealed space 31 needs to be vented, and the on / off mechanism is activated. When the pressure difference reaches the set pressure difference, it indicates that the sealed space 31 meets the requirements, and the on / off mechanism is deactivated.

[0037] A proximity switch is installed on the drawer frame 2. The proximity switch can detect whether the drawer is closed in place. When the drawer is closed in place, it controls the pressure detection mechanism to perform the detection.

[0038] Specifically, the modified atmosphere structure includes a modified atmosphere membrane assembly 41 for separating oxygen. The modified atmosphere membrane assembly 41 is disposed on the drawer frame 2, and its modified atmosphere inlet is connected to the sealed space 31, while its modified atmosphere outlet is connected to the extraction inlet. When the extraction structure 7 extracts air from the sealed space 31, oxygen within the sealed space 31 is discharged through the modified atmosphere membrane assembly 41, creating a low-oxygen environment within the sealed space 31. This prevents spoilage and ensures optimal preservation.

[0039] The modified atmosphere structure also includes a moisturizing film assembly 42 for separating water vapor. The moisturizing film assembly 42 is disposed on the drawer frame 2, and its moisturizing air inlet is connected to the sealed space 31, while its moisturizing air outlet is connected to the exhaust inlet. The moisturizing film allows water vapor from the air to pass through while isolating other gases in the air. During refrigeration, fruits and vegetables evaporate water vapor, increasing the humidity inside the drawer. Excessive humidity reduces the shelf life of fruits and vegetables and can cause spoilage. Therefore, the moisturizing film maintains the humidity balance in the drawer. When the exhaust structure 7 evacuates the sealed space 31, the water vapor in the sealed space 31 is discharged through the moisturizing film assembly 42, reducing the humidity in the sealed space 31, preventing spoilage and ensuring freshness.

[0040] A refrigerator, comprising the aforementioned preservation device.

[0041] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A food preservation device, characterized in that: include: Box (1); Drawer frame (2), the drawer frame (2) is disposed inside the box body (1), and a receiving space (11) is formed between the drawer frame (2) and the box body (1). At least two drawers (3) are movably mounted on the drawer frame (2), and each drawer (3) constitutes a closed space (31). A modified atmosphere structure (4) is disposed within the accommodating space (11), and the sealed space (31) is connected to the accommodating space (11) through the modified atmosphere structure (4); Heating mechanism (5), which is disposed on the drawer frame (2) and is capable of heating the sealed space (31); The preservation device also includes an air extraction structure (7), which is disposed in the accommodating space (11), and the air extraction inlet of the air extraction structure (7) is connected to the sealed space (31) through the modified atmosphere structure (4). The modified atmosphere structure (4) corresponds one-to-one with the sealed space (31), and the air inlet of the modified atmosphere structure (4) is connected to the corresponding sealed space (31), and the air outlet of all the modified atmosphere structures (4) is connected to the exhaust structure (7). The modified atmosphere structure (4) further includes a moisturizing film assembly (42) for separating water vapor. The moisturizing film assembly (42) is disposed on the drawer frame (2), and the moisturizing air inlet of the moisturizing film assembly (42) is connected to the sealed space (31). The moisturizing air outlet of the moisturizing film assembly (42) is connected to the air extraction inlet. The moisturizing film assembly (42) can allow water vapor in the air to pass through while isolating other gases in the air, so as to maintain the humidity balance in the drawer (3).

2. The preservation device according to claim 1, characterized in that: The preservation device also includes a partition (6), which is disposed inside the drawer frame (2) and divides the drawer frame (2) into at least two installation spaces. Each installation space contains a drawer (3), and the heating mechanism (5) is disposed between the partition (6) and the drawer (3).

3. The preservation device according to claim 2, characterized in that: The partition (6) divides the drawer frame (2) into a first installation space and a second installation space. The drawer (3) includes a first drawer (32) and a second drawer (33). The first drawer (32) is located in the first installation space, and the second drawer (33) is located in the second installation space. The heating mechanism (5) includes a first heating mechanism and a second heating mechanism. The first heating mechanism is located between the first drawer (32) and the partition (6), and the second heating mechanism is located between the second drawer (33) and the partition (6).

4. The preservation device according to any one of claims 1 to 3, characterized in that: The heating mechanism (5) includes an aluminum foil heater.

5. The preservation device according to claim 1, characterized in that: An on / off mechanism is provided between the air outlet of the modified atmosphere structure (4) and the air extraction structure (7).

6. The preservation device according to claim 5, characterized in that: The preservation device also includes a pressure detection mechanism, which is located in the sealed space (31) and is electrically connected to the on / off mechanism.

7. The preservation device according to claim 1, characterized in that: The modified atmosphere structure (4) includes a modified atmosphere membrane assembly (41) for separating oxygen. The modified atmosphere membrane assembly (41) is disposed on the drawer frame (2), and the modified atmosphere inlet of the modified atmosphere membrane assembly (41) is connected to the sealed space (31), and the modified atmosphere outlet of the modified atmosphere membrane assembly (41) is connected to the exhaust inlet.

8. A refrigerator, characterized in that: The preservation device includes any one of claims 1 to 7.

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