Refrigerating apparatus

Abstract

The application discloses a refrigeration device, comprising a cabinet, a low-pressure storage device, and a suction device; the low-pressure storage device comprises a shell, a storage container, a door body comprising a first transparent part and a first connecting piece, and a locking assembly comprising a first locking part and a second locking part; the first connecting piece comprises a first connecting plate connected with the first transparent part and a second connecting plate located on the side of the first connecting plate close to the storage container; the second locking part comprises a first locking piece rotatable about a first central axis with the second connecting plate; in the projection of the plane where the rear wall of the shell is located, a straight line perpendicular to the first central axis is recorded as a first direction line L1; the maximum size of the first connecting plate along the first central axis is recorded as a first size K1; the maximum size of the first connecting plate along the first direction line L1 is recorded as a second size K2; 7<=K2:K1<=17; the first connecting plate is in the shape of a long strip, the first connecting piece reduces the shielding of the door body, the visual area of the door body is increased, and the shielding of the pressure relief assembly to the door body is reduced.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a refrigeration device. Background Technology

[0002] As consumers demand higher quality fresh food, their requirements for refrigerators are also increasing. They need refrigerators with better configurations and more powerful functions, especially hoping that the stored fresh food can have a longer shelf life to ensure the freshness of the ingredients and prevent the loss of nutrients.

[0003] To better preserve food, vacuum storage devices have been developed for refrigerators. These devices remove oxygen from the interior of the refrigerator to prevent food spoilage and ensure freshness.

[0004] To facilitate users' viewing of the food inside the vacuum storage device and reduce the frequency of users opening and closing the vacuum storage device and the number of times the vacuuming device needs to vacuum, the door of the vacuum storage device is now made transparent, allowing users to observe the state of the stored items inside the vacuum storage device without opening it.

[0005] However, the door of the vacuum storage device is obstructed by components located on its front side, resulting in a reduced visible area of ​​the door, which makes it difficult for users to check the status of the stored items without opening the door. Summary of the Invention

[0006] This application provides a refrigeration device in which the first connecting plate of the low-pressure storage device is configured as a long strip to reduce the obstruction of the door by the first connecting member and increase the visible area of ​​the door.

[0007] In a first aspect, a refrigeration device is provided, comprising:

[0008] The enclosure defines the storage space;

[0009] A low-pressure storage device, which is housed within the storage chamber;

[0010] A vacuum device for removing gas from the low-pressure storage device;

[0011] The low-pressure storage device includes:

[0012] A housing, comprising a first housing sidewall and a second housing sidewall disposed opposite to each other;

[0013] The storage container can be pulled out or pushed into the housing;

[0014] The door body includes:

[0015] The first transparent part is connected to the storage container;

[0016] The first connector includes:

[0017] A first connecting plate is connected to the first transparent portion and is located on the side of the first transparent portion away from the container;

[0018] The second connecting plate is connected to the end of the first connecting plate away from the side wall of the second shell, and is located on the side of the first connecting plate closer to the storage container;

[0019] A locking component is used to lock or unlock the door body from the housing; the locking component includes:

[0020] A first locking part is provided on the first shell sidewall of the housing;

[0021] A second locking part is used to cooperate with the first locking part to lock or unlock the door body from the housing; the second locking part includes:

[0022] The first locking member is located on the side of the second connecting plate away from the second shell sidewall and is rotatably connected to the second connecting plate about the first central axis;

[0023] In the projection of the plane containing the rear wall of the housing, the straight line perpendicular to the first central axis is denoted as the first direction line L1; the maximum dimension of the first connecting plate along the first central axis is denoted as the first dimension K1; the maximum dimension of the first connecting plate along the first direction line L1 is denoted as the second dimension K2.

[0024] Where 7≤K2:K1≤17.

[0025] In the above technical solution, when K2:K1>17, the ratio of the second dimension to the first dimension is too large, resulting in the dimension of the first connecting plate along the first central axis being too small relative to its dimension along the first direction line L1. On the one hand, it is inconvenient to fix the first connecting piece to the door body, increasing the difficulty of connecting the first connecting piece to the door body; on the other hand, it reduces the connection strength between the first connecting piece and the door body.

[0026] When K2:K1<7, the ratio of the second dimension to the first dimension is too small, which causes the dimension of the first connecting plate along the first central axis to be too large relative to its dimension along the first direction line L1. This results in the first connecting plate occupying an increased dimension of the transparent part along the first central axis, increasing the size of the first connector blocking the transparent part along the first central axis, and disrupting the integrity and continuity of the visible area of ​​the transparent part away from the container.

[0027] When 7≤K2:K1≤17, on the one hand, it is convenient to fix the first connector to the door body; on the other hand, it ensures the strength of the door body and the first connector; furthermore, it reduces the size of the first connector blocking the transparent part along the first central axis, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the container.

[0028] In some embodiments, 10mm≤K1≤20mm.

[0029] In the above technical solutions, when K1>20mm, the size of the first connecting plate along the first central axis is too large, which leads to an increase in the size of the transparent part along the first central axis occupied by the first connecting plate. This increases the size of the first connecting member blocking the transparent part along the first central axis, thus destroying the integrity and continuity of the visible area of ​​the transparent part away from the container.

[0030] When K1 < 10mm, the size of the first connecting plate along the first central axis is too small. On the one hand, it is inconvenient to fix the first connecting piece to the door body, increasing the difficulty of connecting the first connecting piece to the door body. On the other hand, it reduces the connection strength between the first connecting piece and the door body.

[0031] When 10mm≤K1≤20mm, on the one hand, the obstruction size of the first connector on the transparent part along the first central axis is reduced, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the storage container; on the other hand, it is convenient to fix the first connector to the door body; furthermore, it ensures the strength of the door body and the first connector.

[0032] In some embodiments, the maximum dimension of the door along the first central axis in the projection of the plane containing the rear wall of the housing is denoted as the door width K0.

[0033] Where 25≤K0:K1≤30.

[0034] In the above technical solution, when K0:K1>30, the ratio of the door width K0 to the first dimension K1 is too large, resulting in the door dimension along the first central axis being too small relative to the first connecting plate dimension along the first central axis. On the one hand, this increases the difficulty of connecting the first connecting piece to the door; on the other hand, it reduces the connection strength between the first connecting piece and the door.

[0035] When K0:K1<25, the ratio of the door width K0 to the first dimension K1 is too small, resulting in the door dimension along the first central axis being too large relative to the first connecting plate dimension along the first central axis. This leads to an increase in the size of the transparent part along the first central axis occupied by the first connecting plate, increasing the size of the transparent part obstructed by the first connecting member along the first central axis, and disrupting the integrity and continuity of the visible area of ​​the transparent part away from the container.

[0036] When 25≤K0:K1≤30, on the one hand, it is convenient to fix the first connector to the door body; on the other hand, it ensures the strength of the door body and the first connector; furthermore, it reduces the size of the first connector blocking the transparent part along the first central axis, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the container.

[0037] In some embodiments, the end face of the first connecting plate near the second shell sidewall is referred to as the first end face P1; the inner wall face of the first shell sidewall of the shell near the second shell sidewall is referred to as the first sidewall face P2.

[0038] The first end face P1 is located on the side of the first side wall P2 that is close to the second shell side wall, or the first end face P1 and the first side wall P2 are coplanar;

[0039] Along the first central axis, the distance between the first end face P1 and the first side wall face P2 is denoted as the first blocking distance J1;

[0040] Where 0mm≤J1≤10mm.

[0041] In the above technical solutions, when J1>10mm, because the first end face P1 is located on the side of the first side wall P2 close to the second shell side wall or the first end face P1 and the first side wall P2 are coplanar, the distance of the first end face P1 extending beyond the first side wall P2 along the first central axis is too large, which causes the size of the storage opening along the first central axis occupied by the first connecting plate to increase, which increases the obstruction of the first transparent part, the second transparent part and the storage opening along the first central axis by the first connecting piece, and destroys the integrity and continuity of the visible area of ​​the door body away from the storage container.

[0042] When 0mm≤J1≤10mm, since the first end face P1 is located on the side of the first side wall P2 close to the second shell side wall or the first end face P1 and the first side wall P2 are coplanar, the amount of obstruction of the first transparent part, the second transparent part and the storage opening along the first central axis by the first connector is limited, effectively ensuring the integrity and continuity of the visible area of ​​the door body away from the storage container.

[0043] In some embodiments, the end face of the first connecting plate near the second shell sidewall is referred to as the first end face P1; the inner wall face of the first shell sidewall of the shell near the second shell sidewall is referred to as the first sidewall face P2.

[0044] Wherein, the first end face P1 is located on the side of the first side wall face P2 away from the second shell side wall.

[0045] The above technical solution avoids the first connecting plate from blocking the first transparent part, the second transparent part and the storage port along the first central axis, reduces the difficulty of connecting the first connecting member to the door body, and effectively ensures the integrity and continuity of the visible area on the side of the door body away from the storage container.

[0046] In some embodiments, along the first central axis, the distance between the first end face P1 and the first side wall face P2 is denoted as the second shielding distance J2;

[0047] Among them, 0mm < J2 ≤ 5mm.

[0048] In the above technical solution, when J1 > 5mm, the distance of the first end face P1 along the first central axis on the side of the first side wall away from the second shell side wall is too large, resulting in the size of the first connecting plate along the first central axis being too small, increasing the difficulty of connecting the first connecting member to the door body. On the other hand, the connection strength between the first connecting member and the door body is reduced.

[0049] When 0mm < J2 ≤ 5mm, the distance of the first end face P1 along the first central axis on the side of the first side wall away from the second shell side wall is limited, avoiding the size of the first connecting plate along the first central axis from being too small, reducing the difficulty of connecting the first connecting member to the door body, and ensuring the connection strength between the first connecting member and the door body.

[0050] In some embodiments, the door body includes a second transparent part on the side of the first transparent part away from the storage container;

[0051] Among them, the second transparent part includes a second surface with the largest distance from the rear wall of the shell;

[0052] The first transparent part includes a first surface close to the inner cavity of the storage container;

[0053] The first surface protrudes away from the storage container; the second surface is a flat surface.

[0054] In the above technical solution, the first transparent part and the second transparent part cooperate with each other so that the stored items placed in the storage container can be visible through the first transparent part and the second transparent part, enabling the user to see the state of the internal ingredients without opening the low-pressure storage device, further enhancing the convenience of the user using the low-pressure storage device; at the same time, it can reduce the frequency of the user opening and closing the low-pressure storage device, and further reduce the frequency of the drawer device pumping air into the low-pressure storage device, improving the service life of the vacuum drawer, avoiding an increase in energy consumption, and ensuring the vacuum fresh-keeping effect of the ingredients.

[0055] On the other hand, the second surface on the second transparent part, which is furthest from the plane where the storage opening is located, forms the frontmost front surface of the door. By setting the second surface to be flat, the frontmost front surface of the door is also flat, resulting in a high degree of visual compatibility between the low-pressure storage device and other devices placed inside the refrigerator. This improves the adaptability of the low-pressure storage device to other devices placed inside the refrigerator and increases the neatness and aesthetics of the arrangement of all devices inside the refrigerator, including the low-pressure storage device.

[0056] In some embodiments, the low-pressure storage device includes:

[0057] Pressure relief assembly, the pressure relief assembly comprising:

[0058] A pressure relief channel is used to connect the inner and outer sides of the low-pressure storage device; the pressure relief channel includes:

[0059] The pressure relief port, facing away from the storage container, is used to connect to the outside of the low-pressure storage device.

[0060] A pressure relief component is located on the side of the pressure relief port away from the container;

[0061] A pressure relief rod is rotatably connected to the door body and fixedly connected to the pressure relief component; the pressure relief rod is rotatable relative to the door body about a first central axis.

[0062] The central axis of the pressure relief rod is referred to as the second central axis;

[0063] In the projection of the plane containing the rear wall of the housing, the dimension of the door body on the first direction line L1 is denoted as the door body height H0; when the pressure relief component closes the pressure relief port, the distance between the second central axis and the lower edge of the door body is denoted as the second distance H2;

[0064] Where 0.2≤H2:H0≤0.5.

[0065] In the above technical solutions, when H2:H0>0.5, the pressure relief rod and the pressure relief component installed on it are located in the area near the upper end of the door in the first transparent part, significantly obstructing the upper area of ​​the door. Since the low-pressure storage device is often positioned below the user's eye level within the refrigerator, the user's line of sight is tilted downwards when observing the stored items through the second and first transparent parts. The significant obstruction of the upper area of ​​the door by the pressure relief rod and the pressure relief component directly blocks the user's view. The user needs to further lower their line of sight and pass over the pressure relief rod and component to observe the area below, which is inconvenient. Furthermore, if other components below the pressure relief component obstruct the door, the user will be unable to directly view the stored items, having to search for an unobstructed area, causing considerable inconvenience.

[0066] When H2:H0 < 0.2, the pressure relief rod and the pressure relief component mounted on it are located near the lower edge of the first transparent part, and correspondingly, the pressure relief port is located at the lower edge of the first transparent part. Items near the bottom of the container are more tightly packed due to the gravity of the items above them, which can easily cause the items to block the pressure relief channel. Furthermore, the proximity of the pressure relief rod and the pressure relief component to the lower edge of the first transparent part prevents other components from being placed in the area below the pressure relief component, requiring additional obstruction of the upper space.

[0067] When 0.2≤H2:H0≤0.5, it does not obstruct the upper area of ​​the door while ensuring the connectivity of the pressure relief channel; in addition, it also reserves space for other components to be installed in the lower area of ​​the door. The above settings do not obstruct the viewing path that conforms to the user's line of sight, allowing the user to directly view the stored items through the upper area of ​​the door.

[0068] In some embodiments, in the projection of the plane containing the rear wall of the housing, the distance between the first central axis and the lower edge of the door body is denoted as the first distance H1;

[0069] Where 0.2≤H1:H0≤0.6.

[0070] In the above technical solutions, when H1:H0>0.6, the distance between the second central axis and the first central axis of the pressure relief rod is too large, and the rotation radius of the pressure relief rod is too large. This results in the pressure relief rod having to rotate too far for the same angle, which in turn requires too much space. Consequently, the door cavity becomes too large to accommodate its movement, ultimately leading to an overall increase in the thickness of the door.

[0071] When H1:H0<0.2, the distance between the second central axis and the first central axis of the pressure relief rod is too small, and the rotation radius of the pressure relief rod is too small. As a result, when rotating by the same angle, the rotation distance of the pressure relief rod is too small, which leads to the movement of the pressure relief component driven by the pressure relief rod being too small, resulting in the inability to effectively control the opening or closing of the pressure relief port.

[0072] Specifically, pressure relief components are often made of elastic elements such as rubber to seal the pressure relief port through elastic deformation. When the pressure relief port needs to be opened, the pressure relief rod needs to move a certain distance to allow the elastic pressure relief component to return to its original shape. Then, the pressure relief rod needs to move further to separate the returned pressure relief component from the pressure relief port, thus completing the action of opening the pressure relief port. Conversely, when the pressure relief component is completely separated from the pressure relief port, the pressure relief rod needs to move a certain distance to bring the pressure relief component closer to the pressure relief port. When the pressure relief component and the pressure relief port are in contact but not interacting, the pressure relief rod needs to move further to press the pressure relief component, and the pressure relief component's elastic deformation further presses the pressure relief port. All of the above require the pressure relief rod to have sufficient range of motion to meet the control of the pressure relief component over the pressure relief port.

[0073] When 0.2≤H1:H0≤0.6, on the one hand, the rotation radius of the pressure relief rod is more suitable for the size of the door cavity, without causing additional changes such as increasing the thickness of the door. On the other hand, it allows the pressure relief rod to have sufficient range of motion to effectively control the smoothness of opening the pressure relief port or the sealing performance when closing it.

[0074] Secondly, a refrigeration device is provided, comprising:

[0075] The enclosure defines the storage space;

[0076] A low-pressure storage device, which is housed within the storage chamber;

[0077] A vacuum device for removing gas from the low-pressure storage device;

[0078] The low-pressure storage device includes:

[0079] A housing, comprising a first housing sidewall and a second housing sidewall disposed opposite to each other;

[0080] The storage container can be pulled out or pushed into the housing;

[0081] The door body includes:

[0082] The first transparent part is connected to the storage container;

[0083] The second transparent section is located on the side of the first transparent section away from the container;

[0084] The first connector includes:

[0085] A first connecting plate is connected to the first transparent portion and is located on the side of the first transparent portion away from the container;

[0086] The second connecting plate is connected to the end of the first connecting plate away from the side wall of the second shell, and is located on the side of the first connecting plate closer to the storage container;

[0087] A locking component is used to lock or unlock the door body from the housing; the locking component includes:

[0088] A first locking part is provided on the first shell sidewall of the housing;

[0089] The second locking part is used to cooperate with the first locking part to lock or unlock the door body from the housing; the second locking part and the second connecting plate are rotatably connected about the first central axis.

[0090] In the projection of the plane containing the rear wall of the housing, the maximum dimension of the first connecting plate along the first central axis is denoted as the first dimension K1; the maximum dimension of the door body along the first central axis is denoted as the door body width K0.

[0091] Where 25≤K0:K1≤30.

[0092] In the above technical solution, when K0:K1>30, the ratio of the door width K0 to the first dimension K1 is too large, resulting in the door dimension along the first central axis being too small relative to the first connecting plate dimension along the first central axis. On the one hand, this increases the difficulty of connecting the first connecting piece to the door; on the other hand, it reduces the connection strength between the first connecting piece and the door.

[0093] When K0:K1<25, the ratio of the door width K0 to the first dimension K1 is too small, resulting in the door dimension along the first central axis being too large relative to the first connecting plate dimension along the first central axis. This leads to an increase in the size of the transparent part along the first central axis occupied by the first connecting plate, increasing the size of the transparent part obstructed by the first connecting member along the first central axis, and disrupting the integrity and continuity of the visible area of ​​the transparent part away from the container.

[0094] When 25≤K0:K1≤30, on the one hand, it is convenient to fix the first connector to the door body; on the other hand, it ensures the strength of the door body and the first connector; furthermore, it reduces the size of the first connector blocking the transparent part along the first central axis, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the container. Attached Figure Description

[0095] Figure 1 A schematic diagram of the overall structure of a refrigeration device according to some embodiments is shown;

[0096] Figure 2 A schematic diagram of a low-pressure storage device in a closed state is shown according to some embodiments;

[0097] Figure 3 A schematic diagram of a low-pressure storage device in an open state is shown according to some embodiments;

[0098] Figure 4 An exploded structural schematic diagram of a low-pressure storage device according to some embodiments is shown;

[0099] Figure 5 Exemplary schematic diagrams of the structure of a door and locking components according to some embodiments are shown;

[0100] Figure 6 An exemplary exploded view of a door body according to some embodiments is shown;

[0101] Figure 7 An exploded structural diagram of a door body, locking assembly, and pressure relief assembly according to some embodiments is shown as an example;

[0102] Figure 8 An exploded structural diagram of a door body, locking assembly, and pressure relief assembly according to some embodiments is shown as an example;

[0103] Figure 9 An exemplary cross-sectional view of a door structure according to some embodiments is shown;

[0104] Figure 10 An exemplary schematic diagram of a door structure according to some embodiments is shown;

[0105] Figure 11 An exemplary schematic diagram illustrating the relative positions of a first central axis, a second central axis, and a third central axis according to some embodiments is shown;

[0106] Figure 12 An exemplary schematic diagram of the structure of a first connector according to some embodiments is shown;

[0107] Figure 13 An exemplary partial cross-sectional view of the door body near the second locking portion according to some embodiments is shown;

[0108] Figure 14 An exemplary partial cross-sectional view of the door body near the second locking part, according to some embodiments, is shown from another perspective.

[0109] The refrigerator comprises: a refrigerator 100; a cabinet 101; a cabinet door 102; a low-pressure storage device 1; a storage container 2; a shell 3; a storage chamber 30; a storage opening 31; a door 4; a first transparent part 41; a first surface B1; a second transparent part 42; a second surface B2; a door cavity 40; a pressure relief assembly 6; a pressure relief port 60; a pressure relief component 61; a pressure relief fixing part 62; a pressure relief rod 63; a pressure plate 64; a reset component 65; a locking assembly 7; a first locking part 71; a second locking part 72; a first locking component 721; a first locking strip 7211; a second locking strip 7212; a third locking strip 7213; a fourth locking strip 7214; a handle 73; a first connecting component 8; a first connecting plate 81; and a second connecting plate 82. Detailed Implementation

[0110] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0111] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0112] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0113] The terms “include” and “have”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0114] The refrigeration device provided in this application can have various implementation forms, such as a refrigerator 100, a wine cabinet, or other devices with refrigeration functions. This application will describe the refrigeration device as a refrigerator 100 as an example.

[0115] Please refer to Figures 1-14 As shown, the refrigerator 100 includes a cabinet 101 having a storage compartment, a door 102 connected to the cabinet 101 for opening and closing the storage compartment, and a refrigeration device for supplying cold air to the storage compartment. The cabinet 101 includes an inner liner defining the storage compartment, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator 100, and a heat insulation layer disposed between the inner liner and the outer shell to insulate the storage compartment.

[0116] Refrigerator 100 includes multiple storage compartments for storing items. In some embodiments of this application, the multiple storage compartments include a refrigerator compartment and a freezer compartment. In some embodiments of this application, the refrigerator compartment is located above or below the freezer compartment, or the refrigerator compartment and the freezer compartment are arranged side by side along the width direction of the refrigerator body 101. It should be noted that the arrangement of the multiple storage compartments of refrigerator 100 is not limited to the examples described above.

[0117] In some embodiments of this application, a retrieval opening is formed at the front end of the storage compartment to allow for placing stored items into or retrieving stored items from the storage compartment. For example... Figure 1 As shown, the door 102 is connected to the box body 101 to open or close the access port of the storage room.

[0118] The refrigerator 100 is equipped with a low-pressure storage device 1 that can be maintained in a low-pressure state, and an air extraction device (not shown in the figure) for extracting gas from the low-pressure storage device 1 to form a low-pressure state in the inner cavity of the low-pressure storage device 1. The above low-pressure state is the gas pressure inside the low-pressure storage device 1 being lower than the atmospheric pressure outside the refrigerator body 101.

[0119] In some embodiments of this application, the evacuation device includes a vacuum pump and a pipeline connected between the vacuum pump and the low-pressure storage device 1. When the evacuation device is in operation, the vacuum pump is activated to extract the gas from the low-pressure storage device 1, thereby reducing the pressure inside the low-pressure storage device 1 and creating a low-pressure (vacuum) storage environment.

[0120] like Figures 2-4 As shown, the low-pressure storage device 1 includes a housing 3 defining a storage chamber 30 and having a storage opening 31, a storage container 2 that can be pushed into or pulled out of the storage chamber 30 defined by the housing 3, and a door 4 located on the side of the storage container 2 away from the rear wall of the housing 3. When the storage container 2 is pushed into the storage chamber 30, the door 4 closes the storage opening 31. The door 4 and the storage container 2 together constitute a drawer unit that can be pushed into and pulled out of the housing 3. The drawer unit is pushed into or pulled out of the housing 3 along a first line of motion. That is, the drawer unit moves along the first line of motion. The first line of motion is a straight line. That is, the drawer unit moves in a straight line when pushed into or pulled out of the housing 3. As one possible configuration, the first line of motion is perpendicular to the rear wall of the housing 2.

[0121] In some embodiments of this application, when the storage port 31 of the storage chamber 30 is closed by the door 4 and the air extraction device is activated, the gas in the storage chamber 30 is extracted, and the storage chamber 30 is in a low-pressure state, forming a low-pressure storage environment.

[0122] According to one embodiment of this application, at the end of the evacuation process, the pressure inside the storage chamber 30 is lower than one standard atmosphere or between one standard atmosphere and absolute vacuum. Because the pressure inside the storage chamber 30 is lower than one standard atmosphere, it is commonly referred to by those skilled in the art as a "vacuum chamber".

[0123] In some embodiments of this application, the door 4 and the storage container 2 are assembled and connected. The door 4 and the storage container 2 are constructed as separate units to meet different needs.

[0124] In some embodiments of this application, the door 4 and the storage container 2 are integrally formed.

[0125] In some embodiments of this application, the housing 3 includes a first housing sidewall and a second housing sidewall (i.e., the left sidewall and the right sidewall of the housing 3) disposed opposite to each other.

[0126] In some embodiments of this application, one end of the opposite ends of the top wall of the housing 3 is connected to the upper end of the first housing side wall, and the other end is connected to the upper end of the second housing side wall. One end of the opposite ends of the bottom wall of the housing 3 is connected to the lower end of the first housing side wall, and the other end is connected to the lower end of the second housing side wall; the rear wall of the housing 3 is connected to the rear end of the first housing side wall, the rear end of the top wall of the housing 3, the rear end of the second housing side wall, and the rear end of the bottom wall of the housing 3.

[0127] The first shell sidewall, the top wall of shell 3, the second shell sidewall, and the front end of the top wall of shell 3 together define the storage port 31. The first shell sidewall, the top wall of shell 3, the second shell sidewall, the bottom wall of shell 3, and the rear wall of shell 3 together define shell 3.

[0128] In some embodiments of this application, such as Figures 4-9 As shown, the door body 4 includes a first transparent portion 41. The first transparent portion 41 is located at the front end of the storage container 2. The first transparent portion 41 includes a first surface B1 near the inner cavity of the storage container 2, and the first surface B1 protrudes to the side away from the storage container 2.

[0129] As a configurable method, the first surface B1 is an arc-shaped surface.

[0130] In the above technical solution, the first transparent part 41 of the door 4 makes the storage container 2 visible through the door 4, so that the user can see the state of the food inside without opening the low-pressure storage device 1, further improving the convenience of the user in using the low-pressure storage device 1; at the same time, it can reduce the frequency of the user opening and closing the low-pressure storage device 1, thereby reducing the frequency of the drawer device to evacuate the low-pressure storage device 1, improving the service life of the vacuum drawer, avoiding increased energy consumption, and ensuring the vacuum preservation effect of the food.

[0131] On the other hand, the first surface B1 of the first transparent part 41 protrudes from the side of the container 2 away from the container 2 to form a curved surface on the side of the door 4 near the inner cavity of the container 2, thereby increasing the contact area between the door 4 and the storage chamber 30 of the low-pressure storage device 1. Under the same pressure, the pressure on the door 4 is reduced, thereby improving the pressure-bearing capacity of the door 4 and preventing the door 4 from deforming due to vacuuming.

[0132] In some embodiments of this application, such as Figures 4-9 As shown, the door body 4 includes a second transparent portion 42. The second transparent portion 42 is located on the side of the first transparent portion 41 away from the storage container 2. The second transparent portion 42 includes a second surface B2 with the largest distance between it and the rear wall of the housing 3, and the second surface B2 is planar. The second surface B2 is located on the side away from the storage container 2.

[0133] The above technical solution, in which the first transparent part 41 and the second transparent part 42 cooperate to make the stored items placed in the storage container 2 visible through the first transparent part 41 and the second transparent part 42, so that the user can see the state of the food inside without opening the low-pressure storage device 1, further improving the convenience of the user in using the low-pressure storage device 1; at the same time, it can reduce the frequency of the user opening and closing the low-pressure storage device 1, thereby reducing the frequency of the drawer device to evacuate the low-pressure storage device 1, improving the service life of the vacuum drawer, avoiding increased energy consumption, and ensuring the vacuum preservation effect of the food.

[0134] On the other hand, the second surface B2, which has the largest distance from the rear wall of the housing 3 on the second transparent part 42, forms the frontmost front surface of the door 4. By setting the second surface B2 to be flat, the frontmost front surface of the door 4 is also flat, resulting in a high degree of visual compatibility between the low-pressure storage device 1 and other devices placed inside the refrigerator 100. This improves the adaptability of the low-pressure storage device 1 to other devices placed inside the refrigerator 100 and increases the neatness and aesthetics of the arrangement of all devices inside the refrigerator 100, including the low-pressure storage device 1.

[0135] The above technical solutions, and the arrangement of the first transparent part 41 and the second transparent part 42 of the door body 2, ensure the pressure-bearing capacity of the door body 4 and prevent the door body 4 from deforming due to vacuuming; and improve the appearance adaptability of the low-pressure storage device 1.

[0136] In some embodiments of this application, the first transparent portion 41 and the second transparent portion 42 cooperate to define the door cavity 40. The door cavity 40 is connected to the outside of the low-pressure storage device 1 when the door 4 is in the closed state. Specifically, the door cavity 40 is connected to the outside of the low-pressure storage device 1 when the door 4 is in the closed state through the assembly gap between the first transparent portion 41 and the second transparent portion 42.

[0137] In some embodiments of this application, the low-pressure storage device 1 includes a pressure relief component 6 to relieve pressure on the low-pressure storage device, which is in a "vacuum" state, when the door 4 needs to be opened, so that the air pressure on the inside and outside of the low-pressure storage device 1 tends to be balanced, so as to facilitate the user to open the door 4.

[0138] In some embodiments of this application, the pressure relief component 6 includes a pressure relief channel for connecting the inner and outer sides of the low-pressure storage device 1, so that when pressure relief is required, the inner and outer sides of the low-pressure storage device 1 are connected, so that the air pressure on the inner and outer sides of the low-pressure storage device 1 tends to be balanced.

[0139] In some embodiments of this application, the pressure relief channel extends through the first transparent portion 41. The pressure relief channel includes a pressure relief port 60 facing the second surface B2 of the second transparent portion 42. The pressure relief port 60 communicates with the door cavity 40; the pressure relief port 60 is used to communicate with the outside of the low-pressure storage device 1.

[0140] During depressurization, because the air pressure inside the low-pressure storage device 1 is lower than the external ambient air pressure, the airflow outside the low-pressure storage device 1 enters the depressurization channel through the depressurization port 60 and then enters the interior of the low-pressure storage device 1 along the depressurization channel. The air pressure inside the low-pressure storage device 1 tends to balance with its external air pressure, making it convenient for the user to open the door 4. It should be noted that the gas outside the low-pressure storage device 1 enters the door cavity 40 through the assembly gap between the first transparent part 41 and the second transparent part 42, and then enters the depressurization channel from the door cavity 40 through the depressurization port 60.

[0141] During vacuuming, the low-pressure storage device 1 needs to form a sealed environment. At this time, the door 4 needs to close the storage port 31 and the pressure relief port 60. Then the vacuuming device will work again to vacuum the low-pressure storage device 1.

[0142] In some embodiments of this application, the pressure relief assembly 6 includes a pressure relief member 61 located on the side of the pressure relief port 60 away from the storage container 2. The pressure relief member 61 is used to cooperate with the pressure relief port 60 to open or close the pressure relief port 60. The pressure relief member 61 is located within the door cavity 40 to fully utilize the internal space of the door 4, reduce the overall space occupied by the door 4, and increase the volume of the housing 3 of the low-pressure storage device 1, thereby increasing the volume of the storage chamber 30.

[0143] In some embodiments of this application, the pressure relief assembly 6 includes a pressure relief fixing part 62. The pressure relief fixing part 62 is rotatably connected to the first transparent part 41. When the pressure relief fixing part 62 rotates relative to the first transparent part 41, it drives the pressure relief member 61 to move towards or away from the pressure relief port 60.

[0144] In some embodiments of this application, the pressure relief fixing part 62 is rotatably connected to the first transparent part 41 via a pressure relief rod 63. By driving the pressure relief rod 63 to rotate, the pressure relief fixing part 62 is driven to rotate, which in turn drives the pressure relief component 61 to rotate to open or close the pressure relief port 60.

[0145] In some embodiments of this application, the rotation center axis of the pressure relief rod 63 is denoted as the first center axis A. The center axis of the pressure relief rod 63 is denoted as the second center axis B. The first center axis A and the second center axis B are parallel.

[0146] like Figure 10 As shown, the definition is: in the projection onto the plane perpendicular to the first line of motion (or in the projection onto the plane containing the rear wall of housing 2), the straight line perpendicular to the first central axis A is denoted as the first direction line L1. It should be noted that... Figure 10 The red center line shows the projection of the second transparent part 42.

[0147] In the projection onto the plane perpendicular to the first line of motion (or in the projection onto the plane containing the rear wall of the housing 3), the dimension of the door 4 on the first direction line L1 is denoted as the door height H0. The distance between the first central axis A and the lower edge of the door 4 is denoted as the first distance H1. When the pressure relief component 61 closes the pressure relief port 60, the distance between the second central axis B of the pressure relief rod 63 and the lower edge of the door 4 is denoted as the second distance H2. It should be noted that the lower edge of the door 4, as the reference object above, refers to the lowest edge of the entire door 4 on the first direction line L1. As an optional configuration, corresponding to the attached... Figure 10 The projection of the second transparent part 42 includes the projection of the first transparent part 41, and the lower edge of the door body 4 here refers to the lower edge of the second transparent part 42.

[0148] In some embodiments of this application, 0.2≤H2:H0≤0.5.

[0149] When H2:H0>0.5, the pressure relief rod 63 and the pressure relief component 61 mounted on it are located in the area near the upper end of the door 4 of the first transparent part 41, significantly obstructing the upper area of ​​the door 4. Since the low-pressure storage device 1 is positioned below the user's horizontal line of sight within the refrigerator 100, the user's line of sight is tilted downwards when observing the stored items through the second transparent part 42 and the first transparent part 41. The significant obstruction of the upper area of ​​the door 4 by the pressure relief rod 63 and the pressure relief component 61 directly blocks the user's view. The user needs to further lower their line of sight and pass over the pressure relief rod 63 and the pressure relief component 61 to observe the area below them, which is inconvenient. Furthermore, when other components below the pressure relief component 61 obstruct the door 4, the user cannot directly observe the stored items and must search for an unobstructed area, causing significant inconvenience.

[0150] When H2:H0 < 0.2, the pressure relief rod 63 and the pressure relief component 61 mounted on it are located near the lower edge of the first transparent part 41, and correspondingly, the pressure relief port 60 is located at the lower edge of the first transparent part 41. Items near the bottom of the container 2 are stacked more tightly due to the gravity of the items above them, which can easily cause the items to block the pressure relief channel. Furthermore, the proximity of the pressure relief rod 63 and the pressure relief component 61 to the lower edge of the first transparent part 41 prevents other components from being placed in the lower area of ​​the pressure relief component 61, requiring additional obstruction of the upper space.

[0151] When 0.2≤H2:H0≤0.5, it does not obstruct the upper area of ​​door 4, while ensuring the connectivity of the pressure relief channel; in addition, it also reserves space for other components to be installed in the lower area of ​​door 4. The above settings do not obstruct the viewing path that conforms to the user's line of sight, allowing the user to directly view the stored items through the upper area of ​​door 4.

[0152] In some embodiments of this application, 0.2≤H1:H0≤0.6.

[0153] When H1:H0>0.6, due to the position limitation of the pressure relief rod 63, the distance between the second central axis B and the first central axis A of the pressure relief rod 63 is too large, and the rotation radius of the pressure relief rod 63 is too large. As a result, when rotating by the same angle, the rotation distance of the pressure relief rod 63 is too large, which makes the space required too large. Consequently, the door cavity 40 becomes too large to meet the space required for its movement, and ultimately the overall thickness of the door 4 increases.

[0154] When H1:H0<0.2, due to the position limitation of the pressure relief rod 63, the distance between the second central axis B and the first central axis A of the pressure relief rod 63 is too small, and the rotation radius of the pressure relief rod 63 is too small. As a result, when rotating by the same angle, the rotation distance of the pressure relief rod 63 is too small, which causes the movement of the pressure relief component 61 driven by the pressure relief rod 63 to be too small, resulting in the inability to effectively control the opening or closing of the pressure relief port 60.

[0155] Specifically, the pressure relief component 61 is often designed as an elastic element such as rubber to seal the pressure relief port 60 through elastic deformation. When it is necessary to open the pressure relief port 60, the pressure relief rod 63 needs to move a certain distance to allow the elastic pressure relief component 61 to return to its original shape. Then, the pressure relief rod 63 needs to continue moving to separate the restored pressure relief component 61 from the pressure relief port 60, thus completing the action of opening the pressure relief port 60. Correspondingly, when the pressure relief component 61 is completely separated from the pressure relief port 60 by a certain distance, the pressure relief rod 63 needs to move a certain distance to bring the pressure relief component 61 closer to the pressure relief port 60. When the pressure relief component 61 is in contact with the pressure relief port 60 and there is no interaction, the pressure relief rod 63 needs to move further to press the pressure relief component 61, and the pressure relief component 61 further presses the pressure relief port 60 through elastic deformation. All of the above require the pressure relief rod 63 to have sufficient range of motion to satisfy the control of the pressure relief component 61 over the pressure relief port 60.

[0156] When 0.2≤H1:H0≤0.6, on the one hand, the rotation radius of the pressure relief rod 63 is more suitable for the size of the door cavity 40, and will not cause any additional changes such as increasing the thickness of the door body 4. On the other hand, it allows the pressure relief rod 63 to have sufficient range of motion to effectively control the smoothness of opening the pressure relief port 60 or the sealing performance when closing it.

[0157] In some embodiments of this application, 1.2≤H1:H2≤1.7.

[0158] When H1:H2>1.7, the distance between the second central axis B and the first central axis A of the pressure relief rod 63 is too large, and the rotation radius of the pressure relief rod 63 is too large. This results in the pressure relief rod 63 rotating too far for the same angle, which in turn requires too much space. Consequently, the door cavity 40 becomes too large to meet the space required for its movement, ultimately leading to an overall increase in the thickness of the door 4.

[0159] When H1:H2<1.2, the distance between the second central axis B and the first central axis A of the pressure relief rod 63 is too small, and the rotation radius of the pressure relief rod 63 is too small. As a result, when rotating by the same angle, the rotation distance of the pressure relief rod 63 is too small, which causes the movement of the pressure relief component 61 driven by the pressure relief rod 63 to be too small, resulting in the inability to effectively control the opening or closing of the pressure relief port 60.

[0160] Specifically, the pressure relief component 61 is often designed as an elastic element such as rubber to seal the pressure relief port 60 through elastic deformation. When it is necessary to open the pressure relief port 60, the pressure relief rod 63 needs to move a certain distance to allow the elastic pressure relief component 61 to return to its original shape. Then, the pressure relief rod 63 needs to continue moving to separate the restored pressure relief component 61 from the pressure relief port 60, thus completing the action of opening the pressure relief port 60. Correspondingly, when the pressure relief component 61 is completely separated from the pressure relief port 60 by a certain distance, the pressure relief rod 63 needs to move a certain distance to bring the pressure relief component 61 closer to the pressure relief port 60. When the pressure relief component 61 is in contact with the pressure relief port 60 and there is no interaction, the pressure relief rod 63 needs to move further to press the pressure relief component 61, and the pressure relief component 61 further presses the pressure relief port 60 through elastic deformation. All of the above require the pressure relief rod 63 to have sufficient range of motion to satisfy the control of the pressure relief component 61 over the pressure relief port 60.

[0161] When 1.2≤H1:H2≤1.7, on the one hand, the rotation radius of the pressure relief rod 63 is more suitable for the size of the door cavity 40, and will not cause any additional changes such as increasing the thickness of the door body 4. On the other hand, it allows the pressure relief rod 63 to have sufficient range of motion to effectively control the smoothness of opening the pressure relief port 60 or the sealing performance when closing it.

[0162] In some embodiments of this application, in a plane perpendicular to the first line of motion, along the first direction line L1, the highest point of the pressure relief member 61 is located below the highest point of the pressure relief rod 63.

[0163] The above technical solutions reduce the obstruction of the pressure relief component 61 on the area above the pressure relief rod 63 of the first transparent part 41, thereby increasing the area and continuity of the upper visible area of ​​the door body 4.

[0164] In some embodiments of this application, such as Figures 7-11 As shown, the pressure relief assembly 6 includes a reset member 65. The reset member 65 acts on the first transparent part 41 and the pressure relief rod 63.

[0165] When the door 4 is in the open state (at this time, the pressure relief port 60 is opened by the pressure relief component 61), the reset component 65 is compressed and accumulates elastic potential energy.

[0166] When the door 4 transitions from the open state to the closed state (correspondingly, during the transition from the state where the pressure relief member 61 opens the pressure relief port 60 to the state where the pressure relief member 61 closes the pressure relief port 60), the reset member 65 releases at least part of its elastic potential energy to drive the pressure relief rod 63 to move. The pressure relief rod 63, through the pressure relief fixing part 62, drives the pressure relief member 61 closer to the pressure relief port 60, and finally closes the pressure relief port 60. In addition, during the above process, the reset member simultaneously drives the second locking part (the first locking member 721) to finally lock the second locking part with the first locking part.

[0167] In some embodiments of this application, when the pressure relief member 61 closes the pressure relief port 60, the reset member 65 still accumulates elastic potential energy and still tends to drive the pressure relief rod 63 to continue moving. The pressure relief rod 63, in turn, causes the pressure relief fixing part 62 and the pressure relief member 61 to continue moving. This ensures that when the pressure relief member 61 closes the pressure relief port 60, it can press the pressure relief port 60 tightly, guaranteeing the sealing performance of the pressure relief member 61 when closing the pressure relief port 60. Furthermore, during the above process, the reset member tends to drive the second locking part to continue moving, allowing the second locking part and the first locking part to be stably maintained in the locked state.

[0168] The above technical solutions effectively ensure the airtightness of the low-pressure storage device 1 when the door 4 is closed.

[0169] In some embodiments of this application, such as Figures 7-8 As shown, the pressure relief assembly 6 includes a pressure plate 64, which is rotatably connected to the first transparent portion 41. The rotational axis of the pressure plate 64 relative to the first transparent portion 41 is denoted as the third central axis C. A reset member 65 connects the pressure plate 64 and the first transparent portion 41, acting on the pressure relief rod 63 through the pressure plate 64.

[0170] In some embodiments of this application, the reset member 65 is a torsion spring. The torsion spring includes a torsion spring body, a first torsion arm, and a second torsion arm. The torsion spring body is connected to the first transparent portion 41, and the central axis of the torsion spring body is the third central axis C. The first torsion arm cooperates with the first transparent portion 41, and the second torsion arm cooperates with the pressure plate 64. The end of the pressure plate 64 away from the third central axis C rests on the pressure relief rod 63.

[0171] The above technical solution transmits the elastic force of the torsion spring to the pressure relief rod 63 through the pressure plate 64, so as to further act on the pressure relief component 61 and ensure the sealing of the pressure relief component 61 in closing the pressure relief port 60.

[0172] In addition, the end of the pressure plate 64 away from the third central axis C rests on the pressure relief rod 63. The pressure plate 64 and the pressure relief rod 64 are flexibly connected, which makes the cooperation between the pressure plate 64 and the pressure relief rod 64 more flexible. This ensures that the pressure plate 64 can effectively transfer the force to the pressure relief rod 63, and also avoids damage to the components caused by the rigid connection encountering inappropriate external forces.

[0173] In some embodiments of this application, the pressure plate 64 and the torsion spring are configured in two sets, one set of pressure plate 64 and torsion spring is close to the side wall of the first shell, and the other set of pressure plate 64 and torsion spring is close to the side wall of the second shell.

[0174] The arrangement of the two sets of pressure plates 64 and the torsion springs makes the force of the torsion springs on the pressure relief rod 63 more balanced, so that the force transmitted to the pressure relief component 61 through the pressure relief rod 63 is more balanced, thereby improving the sealing performance of the pressure relief component 61 to the pressure relief port 60.

[0175] In some embodiments of this application, such as Figure 10 As shown, in the projection in the plane perpendicular to the first line of motion (or in the projection in the plane where the rear wall of the housing 3 is located), the distance between the third central axis C and the lower edge of the door 4 is denoted as the third distance H3.

[0176] In some embodiments of this application, 1.1≤H3:H2≤1.5.

[0177] When H3:H2>1.5, the distance between the third central shaft C and the second central shaft B is too large, and the force transmitted from the second torsion arm of the torsion spring to the pressure relief rod 63 through the pressure plate 64 is too small, resulting in the pressure relief component 61 being unable to press the pressure relief port 60, thereby reducing the vacuum holding capacity of the low-pressure storage device 1.

[0178] When H3:H2 < 1.1, the distance between the third central axis C and the second central axis B is too small. In order for the pressure plate 64 to act on the pressure relief rod 63, the diameter of the pressure relief rod 63 needs to be made thinner, resulting in the pressure relief rod 63 having too low strength. On the other hand, the distance between the third central axis C and the second central axis B is too small, and the lever arm of the interaction between the pressure plate 64 and the pressure relief rod 63 is too small, which requires a larger force to compensate for the force of the torsion spring. This increases the difficulty of opening the pressure relief port 60 by driving the pressure relief component 61 through the pressure relief rod 63, and reduces the user experience.

[0179] When 1.1≤H3:H2≤1.5, on the one hand, it ensures that the force transmitted from the second torsion arm of the torsion spring to the pressure relief rod 63 through the pressure plate 64 is sufficient to press the pressure relief component 61 against the pressure relief port 60, thereby ensuring the vacuum maintenance capability of the low-pressure storage device 1. On the other hand, it ensures the strength of the pressure relief rod 63; at the same time, while ensuring that the force transmitted from the second torsion arm to the pressure relief rod 63 through the pressure plate 64 is increased, the lever arm is reduced, thereby reducing the external force required for the pressure relief rod 63 to drive the pressure relief component 61 to open the pressure relief port 60, making it easier for the user to operate.

[0180] In some embodiments of this application, in the projection onto a plane perpendicular to the first central axis A, the first central axis A is denoted as A, the second central axis B as B, and the third central axis C as C. For example... Figure 11 As shown, in the projection onto the plane perpendicular to the first central axis A, the first central axis A, the second central axis B, and the third central axis C are not collinear. That is, in the projection onto the plane perpendicular to the first central axis A, the lines connecting the first central axis A, the second central axis B, and the third central axis C form a triangle.

[0181] Projected onto a plane perpendicular to the first central axis A, the third central axis C is located on the side of the first central axis A away from the container 2; the third central axis C is located on the side of the second central axis B close to the container 2.

[0182] In the above technical solution, the position of the third central axis C of the torsion spring is set so that the torsion spring and the pressure plate 64 are closer to the side of the inner cavity 40 of the door, which reduces the space occupied by the torsion spring and the pressure plate 64 on the first transparent part 41, thereby reducing the space occupied by the clearance area set on the first transparent part 41 for fixing the torsion spring and the pressure plate 64, so as to ensure the strength of the first transparent part 41.

[0183] In some embodiments of this application, such as Figures 2-11 As shown, the low-pressure storage device 1 includes a locking assembly 7. The locking assembly 7 is used to lock or unlock the door 4 and the housing 3.

[0184] The locking assembly 7 includes a first locking part 71 and a second locking part 72. The first locking part 71 is disposed on the first side wall of the housing 3; the second locking part 72 is disposed on the door 4 and is used to cooperate with the first locking part 71 to open or close the door 4 and the housing 3. The pressure relief rod 63 is connected to the second locking part 72.

[0185] The second locking part 72 moves to lock or unlock with the first locking part 71; simultaneously, the second locking part 72 drives the pressure relief rod 63 to rotate around the first central axis A, and the pressure relief rod 63 drives the pressure relief fixing part 62 to move synchronously, so that the pressure relief fixing part 62 drives the pressure relief component 61 to rotate around the first central axis A to close or open the pressure relief port 60. The specific operation process is as follows:

[0186] When the door 4 changes from the open state to the closed state, the second locking part 72 approaches the first locking part 71. The second locking part 72 drives the pressure relief rod 63 to rotate around the first central axis A. The pressure relief rod 63 drives the pressure relief fixing part 62 and the pressure relief component 61 to rotate around the first central axis A, so that the pressure relief component 61 approaches the pressure relief port 60.

[0187] When the second locking part 72 locks with the first locking part 71, the door body 4 locks with the housing 3, and the pressure relief member 61 presses against the pressure relief port 60 so that the pressure relief member 61 closes the pressure relief port 60.

[0188] When the door 4 changes from the closed state to the open state, the second locking part 72 unlocks from the first locking part 71. The second locking part 72 drives the pressure relief rod 63 to rotate around the first central axis A. The pressure relief rod 63 drives the pressure relief fixing part 62 and the pressure relief component 61 to rotate around the first central axis A, so that the pressure relief component 61 moves away from the pressure relief port 60, and the pressure relief component 61 opens the pressure relief port 60.

[0189] In the above technical solution, the pressure relief component 6 and the locking component 7 are linked. While the locking component 7 unlocks or locks the housing 3 and the door 4, it simultaneously moves the pressure relief component 61 to open or close the pressure relief port 60, thereby opening or sealing the low-pressure storage device 1. Specifically, when the first locking part 71 and the second locking part 72 cooperate to lock the door 4 and the housing 3, the pressure relief component 61 seals the pressure relief port 60, creating a sealed storage space in the low-pressure storage device 1, facilitating vacuuming to create a low-pressure storage environment. When the first locking part 71 and the second locking part 72 cooperate to unlock the door 4 and the housing 3, the pressure relief component 61 opens the pressure relief port 60, allowing gas outside the low-pressure storage device 1 to enter, making the internal and external air pressures of the low-pressure storage device 1 parallel, allowing the user to easily pull out the storage container 2 through the door 4.

[0190] In some embodiments of this application, the second locking part 72 includes a first locking member 721. The first locking member 721 is rotatably connected to the door body 4 about a first central axis A. The pressure relief rod 63 is fixedly connected to the first locking member 721.

[0191] The first locking member 721 rotates to lock or unlock the second locking part 72 with the first locking part 71. Simultaneously, the first locking member 721 drives the pressure relief rod 63 to rotate synchronously, and the pressure relief rod 63 drives the pressure relief fixing part 62 and the pressure relief member 61 to rotate around the first central axis A to open or close the pressure relief port 60. The specific operation process is as follows:

[0192] Definition: The direction in which the second locking part 72 rotates clockwise is denoted as the first clockwise direction. The second locking part 72 is located on the side away from the second shell sidewall and faces the second shell sidewall.

[0193] When the door 4 changes from the open state to the closed state, the first locking member 721 rotates around the first central axis A in the first clockwise direction, and drives the pressure relief rod 63 to rotate synchronously; the pressure relief rod 63 drives the pressure relief fixing part 62 and the pressure relief member 61 to rotate around the first central axis A in the first clockwise direction, so that the pressure relief member 61 is close to the pressure relief port 60.

[0194] When the second locking part 72 locks with the first locking part 71, the door body 4 locks with the housing 3, and the pressure relief member 61 presses against the pressure relief port 60 so that the pressure relief member 61 closes the pressure relief port 60.

[0195] When the door 4 changes from the closed state to the open state, the first locking member 721 rotates around the first central axis A in a direction opposite to the first clockwise direction, and drives the pressure relief rod 63 to rotate synchronously; the pressure relief rod 63 drives the pressure relief fixing part 62 and the pressure relief member 61 to rotate around the first central axis A in a direction opposite to the first clockwise direction, so that the pressure relief member 61 opens the pressure relief port 60.

[0196] In the above technical solution, the second locking part 72 includes a first locking member 721 that can rotate around the first central axis A, so that the pressure relief rod 63 can be directly driven to rotate around the first central axis A through the first locking member 721. The rotational movement of the first locking member 721 locks or unlocks the door 4 and the housing 3, and at the same time closes or opens the pressure relief port 60 of the pressure relief member 61, making the linkage between the locking assembly 7 and the pressure relief assembly 6 more stable and consistent.

[0197] It should be noted that the locking assembly 7 is provided in two sets. In one set, the first locking part 71 is provided on the first shell side wall of the housing 3, and the corresponding second locking part 72 is provided on the corresponding side of the door body 4; in the other set, the first locking part 71 is provided on the second shell side wall of the housing 3, and the corresponding second locking part 72 is provided on the corresponding side of the door body 4.

[0198] The locking assembly 7 includes a handle 73. The handle 73 connects to two second locking parts 72 arranged along the first central axis A. The handle 73 drives the two second locking parts 72 to move synchronously, so that the second locking parts 72 lock or unlock synchronously with the first locking part 71 on the corresponding side.

[0199] In the above technical solution, the low-pressure storage device 1 is equipped with locking components at both ends along the first central axis A to lock the door 4 and the housing 3 at both ends. The locking force is more evenly distributed, making the door 4 fit more tightly with the housing 3 when closed, effectively ensuring the airtightness of the low-pressure storage device 1.

[0200] In some embodiments of this application, the second locking part 72 includes a second locking member. The second locking member is connected to the first locking member 721 and is located on the side of the first locking member 721 closer to the first locking part 71. When the first locking member 721 rotates about the first central axis A, it drives the second locking member to rotate coaxially, thereby locking or unlocking the second locking member with the first locking part 71. That is, the second locking part 72 is rotatably connected to the door body 4 about the first central axis A.

[0201] In the above technical solution, the second locking member of the second locking part 72 rotates synchronously with the first locking member 721, effectively ensuring the consistency and coordination of the movement.

[0202] In some embodiments of this application, the second locking part 72 includes a second locking member. The second locking member is disposed on the door body 4. When the first locking member 721 rotates about the first central axis A, it drives the second locking member to move, so that the second locking member locks or unlocks with the first locking part 71.

[0203] In one configurable manner, the second locking member is rotatably connected to the door body 4. The second locking member can rotate about a fourth central axis. The fourth central axis is parallel to the first central axis A. That is, the rotational central axis of the second locking member is not coaxial with the rotational central axis of the first locking member 721. When the first locking member 721 rotates about the first central axis A, its end near the second locking member interacts with the second locking member, causing the second locking member to rotate about the fourth central axis, thereby locking or unlocking the second locking member with the first locking part 71.

[0204] In the above technical solution, the second locking member locked with the first locking part 71 is driven to rotate by the rotatable first locking member 721. The locking or unlocking of the door 4 and the housing 3 is achieved through the two-stage rotational motion, so that the first locking member 721 that performs the first-stage rotational motion can be miniaturized.

[0205] In some embodiments of this application, the first locking member 721 includes a first locking strip 7211, a second locking strip 7212, and a third locking strip 7213 connected end to end in sequence.

[0206] The second locking strip 7212 is rotatably connected to the end of the door body 4. The first locking strip 7211 is connected to the end of the second locking strip 7212 away from the storage container 2.

[0207] Projected onto a plane perpendicular to the first central axis A, the first locking strip 7211, the second locking strip 7212, and the third locking strip 7213 are connected in sequence and form a triangle.

[0208] In some embodiments of this application, the first locking member 721 further includes a fourth locking strip 7214 located at the connection between the first locking strip 7211 and the third locking strip 7213. The fourth locking strip 7214 and the first locking strip 7211 are located on the same side of the third locking strip 7213, and the fourth locking strip 7214 and the first locking strip 7211 form an acute angle. The end of the fourth locking strip 7214 away from the third locking strip 7213 is fixed to the handle 73.

[0209] The above technical solution, through the setting of the first locking member 721, places the handle 73, which applies force to the first locking member 721, on the front side of the door body 4, making it convenient for the user to apply force to the handle 73. The handle 73 drives the first locking member 721 to move, so that the second locking part 72 locks or unlocks the first locking part 71. At the same time, the first locking member 721 drives the pressure relief rod 63 to rotate, so that the pressure relief fixing part 62 and the pressure relief member 61 rotate synchronously, so that the pressure relief member 61 closes the pressure relief port 60 when the second locking part 72 locks the first locking part 71, or opens the pressure relief port 60 when the second locking part 72 unlocks the first locking part 71.

[0210] In some embodiments of this application, the pressure relief rod 63 is connected to the first locking plate 7211. This connects the pressure relief assembly 6 and the locking assembly 7 via the fixed linkage of the pressure relief rod 63 and the first locking plate 7211, allowing the pressure relief port 60 to open or close simultaneously when locking or unlocking the door 4 and the housing 3. This enables the user to complete both actions of the low-pressure storage device with a single operation, facilitating user operation.

[0211] In some embodiments of this application, the door 4 includes a first connector 8. Specifically, the first connector 8 is disposed on the transparent portion 30. The first connector 8 includes a first connecting plate 81. The first connecting plate 81 is fixed to the transparent portion 30 and is located on the side of the transparent portion 30 away from the storage container 2.

[0212] The first connector 8 includes a second connector 82. The second connector 82 is connected to the end of the first connector 81 away from the side wall of the second shell and is located on the side of the first connector 81 closer to the storage container 2. The second locking part 72 is connected to the second connector 82 (the first locking part 721 is connected to the second connector 82).

[0213] In some embodiments of this application, the maximum dimension of the first connecting plate 81 along the first central axis A in a plane perpendicular to the first motion line is denoted as the first dimension K1.

[0214] In the plane projection perpendicular to the first motion line, the maximum dimension of the first connecting plate 81 along the first direction line L1 is denoted as the second dimension K2.

[0215] In some embodiments of this application, 7≤K2:K1≤17.

[0216] When K2:K1>17, the ratio of the second dimension to the first dimension is too large, which causes the dimension of the first connecting plate 81 along the first central axis A to be too small relative to its dimension along the first direction line L1. On the one hand, it is inconvenient to fix the first connecting piece 8 and the door body 4, increasing the difficulty of connecting the first connecting piece 8 and the door body 4; on the other hand, it reduces the connection strength between the first connecting piece 8 and the door body 4.

[0217] When K2:K1<7, the ratio of the second dimension to the first dimension is too small, which causes the dimension of the first connecting plate 81 along the first central axis A to be too large relative to its dimension along the first direction line L1. This results in the first connecting plate 81 occupying an increased dimension of the transparent part along the first central axis A, increasing the obstruction of the transparent part by the first connecting member 8 along the first central axis A, and disrupting the integrity and continuity of the visible area of ​​the transparent part away from the container 2.

[0218] When 7≤K2:K1≤17, on the one hand, it is convenient to fix the first connector 8 to the door 4; on the other hand, it ensures the strength of the door 4 and the first connector 8; furthermore, it reduces the size of the first connector 8 blocking the transparent part along the first central axis A, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the storage container 2.

[0219] In some embodiments of this application, 10mm≤K1≤20mm.

[0220] When K1>20mm, the size of the first connecting plate 81 along the first central axis A is too large, which causes the size of the transparent part along the first central axis A occupied by the first connecting plate 81 to increase, which increases the size of the first connecting member 8 blocking the transparent part along the first central axis A, and destroys the integrity and continuity of the visible area of ​​the transparent part away from the container 2.

[0221] When K1 < 10mm, the size of the first connecting plate 81 along the first central axis A is too small. On the one hand, it is inconvenient to fix the first connecting piece 8 and the door body 4, which increases the difficulty of connecting the first connecting piece 8 and the door body 4. On the other hand, it reduces the connection strength between the first connecting piece 8 and the door body 4.

[0222] When 10mm≤K1≤20mm, on the one hand, the obstruction size of the first connector 8 on the transparent part along the first central axis A is reduced, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the storage container 2; on the other hand, it is convenient to fix the first connector 8 to the door body 4; furthermore, it ensures the strength of the door body 4 and the first connector 8.

[0223] In some embodiments of this application, the maximum dimension of the door body 4 along the first central axis A in a plane perpendicular to the first line of motion is denoted as the door width K0. Wherein, 25 ≤ K0: K1 ≤ 30.

[0224] When K0:K1>30, the ratio of the door width K0 to the first dimension K1 is too large, which causes the dimension of the door 4 along the first central axis A to be too small relative to the dimension of the first connecting plate 81 along the first central axis A. On the one hand, this increases the difficulty of connecting the first connecting piece 8 and the door 4; on the other hand, it reduces the connection strength between the first connecting piece 8 and the door 4.

[0225] When K0:K1<25, the ratio of the door width K0 to the first dimension K1 is too small, which causes the dimension of the door 4 along the first central axis A to be too large relative to the dimension of the first connecting plate 81 along the first central axis A. This results in the first connecting plate 81 occupying an increased dimension of the transparent part along the first central axis A, increasing the obstruction of the transparent part by the first connecting member 8 along the first central axis A, and disrupting the integrity and continuity of the visible area of ​​the transparent part away from the storage container 2.

[0226] When 25≤K0:K1≤30, on the one hand, it is convenient to fix the first connector 8 to the door 4; on the other hand, it ensures the strength of the door 4 and the first connector 8; furthermore, it reduces the size of the first connector 8 blocking the transparent part along the first central axis A, ensuring the integrity and continuity of the visible area of ​​the transparent part away from the storage container 2.

[0227] In some embodiments of this application, such as Figures 13-14 As shown, the end face of the first connecting plate 81 near the second shell sidewall is denoted as the first end face P1; the inner wall surface of the first shell sidewall of the shell 3 near the second shell sidewall is denoted as the first sidewall surface P2. The first end face P1 is located on the side of the first sidewall surface P2 near the second shell sidewall, or the first end face P1 and the first sidewall surface P2 are coplanar.

[0228] Along the first central axis A, the distance between the first end face P1 and the first side wall face P2 is denoted as the first blocking distance J1. Wherein, 0mm≤J1≤10mm.

[0229] When J1 > 10mm, since the first end face P1 is located on the side of the first side wall P2 close to the second shell side wall or the first end face P1 and the first side wall P2 are coplanar, the distance of the first end face P1 extending beyond the first side wall P2 along the first central axis A is too large. This causes the first connecting plate 81 to occupy an increased size of the storage opening 31 along the first central axis A, which increases the obstruction of the first transparent part 41, the second transparent part 42 and the storage opening 31 along the first central axis A by the first connecting piece 8, thus disrupting the integrity and continuity of the visible area of ​​the door body 4 away from the storage container 2.

[0230] When 0mm ≤ J1 ≤ 10mm, since the first end face P1 is located on the side of the first side wall face P2 close to the second housing side wall or the first end face P1 is coplanar with the first side wall face P2, the shielding amount of the first connecting member 8 to the first transparent part 41, the second transparent part 42 and the storage port 31 along the first central axis A is limited, effectively ensuring the integrity and continuity of the visible area on the side of the door body 4 away from the storage container 2.

[0231] In some embodiments of the present application, the first end face P1 is located on the side of the first side wall face P2 away from the second housing side wall.

[0232] The above technical solutions avoid the shielding of the first connecting plate 81 along the first central axis A to the first transparent part 41, the second transparent part 42 and the storage port 31 along the first central axis A, reduce the difficulty of connecting the first connecting member 8 and the door body 4, and effectively ensure the integrity and continuity of the visible area on the side of the door body 4 away from the storage container 2.

[0233] Along the first central axis A, the distance between the first end face P1 and the first side wall face P2 is denoted as the second shielding distance J2. Among them, 0mm < J2 ≤ 5mm.

[0234] When J1 > 5mm, the distance of the first end face P1 along the first central axis A on the side of the first side wall face away from the second housing side wall is too large, resulting in the size of the first connecting plate 81 along the first central axis A being too small, increasing the difficulty of connecting the first connecting member 8 and the door body 4. On the other hand, the connection strength between the first connecting member 8 and the door body 4 is reduced.

[0235] When 0mm < J2 ≤ 5mm, the distance of the first end face P1 along the first central axis A on the side of the first side wall face away from the second housing side wall is limited, avoiding the size of the first connecting plate 81 along the first central axis A from being too small, reducing the difficulty of connecting the first connecting member 8 and the door body 4, and ensuring the connection strength between the first connecting member 8 and the door body 4.

[0236] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0237] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigeration device, characterized in that, include: The enclosure defines the storage space; A low-pressure storage device, which is housed within the storage chamber; A vacuum device for removing gas from the low-pressure storage device; The low-pressure storage device includes: A housing, comprising a first housing sidewall and a second housing sidewall disposed opposite to each other; The storage container can be pulled out or pushed into the housing; The door body includes: The first transparent part is connected to the storage container; The first connector includes: A first connecting plate is connected to the first transparent portion and is located on the side of the first transparent portion away from the container; The second connecting plate is connected to the end of the first connecting plate away from the side wall of the second shell, and is located on the side of the first connecting plate closer to the storage container; A locking component is used to lock or unlock the door body from the housing; the locking component includes: A first locking part is provided on the first shell sidewall of the housing; A second locking part is used to cooperate with the first locking part to lock or unlock the door body from the housing; the second locking part includes: The first locking member is located on the side of the second connecting plate away from the second shell sidewall and is rotatably connected to the second connecting plate about the first central axis; In the projection of the plane containing the rear wall of the housing, the straight line perpendicular to the first central axis is denoted as the first direction line L1; the maximum dimension of the first connecting plate along the first central axis is denoted as the first dimension K1; the maximum dimension of the first connecting plate along the first direction line L1 is denoted as the second dimension K2. Where 7≤K2:K1≤17.

2. The refrigeration device according to claim 1, characterized in that, in, 10mm≤K1≤20mm.

3. The refrigeration device according to claim 1 or 2, characterized in that, in, In the projection of the plane containing the rear wall of the housing, the maximum dimension of the door along the first central axis is denoted as the door width K0; Where 25≤K0:K1≤30.

4. The refrigeration device according to claim 1 or 2, characterized in that, The end face of the first connecting plate near the second shell sidewall is designated as the first end face P1; the inner wall face of the first shell sidewall near the second shell sidewall is designated as the first sidewall face P2. The first end face P1 is located on the side of the first side wall P2 that is close to the second shell side wall, or the first end face P1 and the first side wall P2 are coplanar; Along the first central axis, the distance between the first end face P1 and the first side wall face P2 is denoted as the first blocking distance J1; Where Omm≤J1≤1Omm.

5. The refrigeration apparatus according to claim 1 or 2, characterized in that, The end face of the first connecting plate near the second shell sidewall is designated as the first end face P1; the inner wall face of the first shell sidewall near the second shell sidewall is designated as the first sidewall face P2. Wherein, the first end face P1 is located on the side of the first side wall face P2 away from the second shell side wall.

6. The refrigeration apparatus according to claim 5, characterized in that, Along the first central axis, the distance between the first end face P1 and the first side wall face P2 is denoted as the second blocking distance J2; Among them, 0mm <J2≤5mm。 7. The refrigeration apparatus according to claim 1, 2, or 6, characterized in that, The door includes a second transparent portion located on the side of the first transparent portion away from the storage container; The second transparent portion includes a second surface that has the largest distance from the rear wall of the housing; The first transparent portion includes a first surface near the inner cavity of the container; The first surface protrudes to the side away from the container; the second surface is flat.

8. The refrigeration apparatus according to claim 1, 2, or 6, characterized in that, The low-pressure storage device includes: Pressure relief assembly, the pressure relief assembly comprising: A pressure relief channel is used to connect the inner and outer sides of the low-pressure storage device; the pressure relief channel includes: The pressure relief port, facing away from the storage container, is used to connect to the outside of the low-pressure storage device. A pressure relief component is located on the side of the pressure relief port away from the container; A pressure relief rod is rotatably connected to the door body and fixedly connected to the pressure relief component; the pressure relief rod is rotatable relative to the door body about a first central axis. The central axis of the pressure relief rod is referred to as the second central axis; In the projection of the plane containing the rear wall of the housing, the dimension of the door body on the first direction line L1 is denoted as the door body height H0; when the pressure relief component closes the pressure relief port, the distance between the second central axis and the lower edge of the door body is denoted as the second distance H2; Where 0.2≤H2:H0≤0.

5.

9. The refrigeration apparatus according to claim 8, characterized in that, In the projection of the plane containing the rear wall of the housing, the distance between the first central axis and the lower edge of the door body is denoted as the first distance H1; Where 0.2≤H1:H0≤0.

6.

10. A refrigeration device, characterized in that, include: The enclosure defines the storage space; A low-pressure storage device, which is housed within the storage chamber; A vacuum device for removing gas from the low-pressure storage device; The low-pressure storage device includes: A housing, comprising a first housing sidewall and a second housing sidewall disposed opposite to each other; The storage container can be pulled out or pushed into the housing; The door body includes: The first transparent part is connected to the storage container; The second transparent section is located on the side of the first transparent section away from the container; The first connector includes: A first connecting plate is connected to the first transparent portion and is located on the side of the first transparent portion away from the container; The second connecting plate is connected to the end of the first connecting plate away from the side wall of the second shell, and is located on the side of the first connecting plate closer to the storage container; A locking component is used to lock or unlock the door body from the housing; the locking component includes: A first locking part is provided on the first shell sidewall of the housing; The second locking part is used to cooperate with the first locking part to lock or unlock the door body from the housing; the second locking part and the second connecting plate are rotatably connected about the first central axis. In the projection of the plane containing the rear wall of the housing, the maximum dimension of the first connecting plate along the first central axis is denoted as the first dimension K1; the maximum dimension of the door body along the first central axis is denoted as the door body width K0. Where 25≤K0:K1≤30.

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