Refrigerator-freezer device

Abstract

The application provides a refrigerating and freezing device, which comprises a box body, a first space and a second space defined in the box body and arranged at intervals, the box body is provided with a foaming layer, and an air conditioning pipeline is embedded in the foaming layer and connected between the first space and the second space to transport the gas in the first space to the second space. According to the scheme of the application, the air conditioning pipeline is embedded in the foaming layer and does not occupy the storage space, so that the refrigerating and freezing device can adjust the atmosphere of the space without affecting the effective volume.

Description

Technical Field

[0001] This invention relates to modified atmosphere storage technology, and in particular to refrigeration and freezing equipment. Background Technology

[0002] Modified atmosphere storage (MAP) technology extends the shelf life of food by adjusting the composition of gases in the environment. Refrigeration and freezing systems with MAP capabilities are widely popular. Among the many gaseous components, oxygen is of particular interest.

[0003] The inventors recognized that connecting different spaces with pipes allows for gas exchange, thereby regulating the internal gas composition. However, adding pipes significantly impacts the structural layout of the refrigeration and freezing unit, reducing its effective volume.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] One object of the present invention is to overcome at least one technical defect in the prior art and to provide a refrigeration and freezing apparatus.

[0006] A further objective of the present invention is to enable the refrigeration and freezing apparatus to regulate the atmosphere of the space using pre-embedded controlled atmosphere piping without affecting the effective volume.

[0007] Another further objective of the present invention is to construct invisible airflow channels between different storage compartments of a refrigeration and freezing device to achieve gas exchange.

[0008] Another further objective of the present invention is to enable the variable temperature compartment or freezing compartment of a refrigeration and freezing device to achieve controlled atmosphere preservation at low temperatures.

[0009] In particular, the present invention provides a refrigeration and freezing apparatus, comprising:

[0010] A housing, which internally defines a first space and a second space spaced apart from each other; and the housing has a foam layer; and

[0011] A controlled atmosphere pipeline is embedded in the foam layer and connected between the first space and the second space to transport gas from the first space to the second space.

[0012] Optionally, the housing includes:

[0013] A first inner liner, which internally defines a first storage compartment, serving as the first space; and

[0014] The second inner liner defines a second storage compartment, which serves as the second space.

[0015] Optionally, the first inner liner is a refrigerator inner liner; and

[0016] The second inner liner is either a frozen inner liner or a variable temperature inner liner.

[0017] Optionally, the refrigeration and freezing apparatus also includes:

[0018] At least one first storage container is disposed within the second storage room, and its interior defines a first storage space; a vent is provided on the wall of the first storage container to communicate with the first storage space; and

[0019] An air passage connector is fixed to the second inner liner and has a first connection port that connects to the air outlet of the atmosphere control pipe and a second connection port that connects to the air vent. An airflow channel is connected between the first connection port and the second connection port, so that the atmosphere control pipe connects to the first storage space.

[0020] Optionally, there may be multiple first storage containers; and

[0021] The second connection port of the gas connection component is multiple, and each of them is connected to the vent of each of the first storage containers.

[0022] Optionally, the refrigeration and freezing unit also includes:

[0023] A one-way valve, installed on the gas regulating line, is used to allow gas flowing into the second space to pass through in one direction only.

[0024] Optionally, the refrigeration and freezing unit also includes:

[0025] An oxygen treatment device having a housing and an electrode pair; wherein

[0026] The housing defines an electrochemical reaction chamber for holding electrolyte; the electrode pair is disposed in the electrochemical reaction chamber and is used to transfer external oxygen to the electrochemical reaction chamber through an electrochemical reaction; the housing also has an exhaust port communicating with the electrochemical reaction chamber for discharging oxygen from the electrochemical reaction chamber; the exhaust port communicates with the first space and serves as a gas supply port for the controlled atmosphere pipeline.

[0027] Optionally, the refrigeration and freezing unit also includes:

[0028] A liquid storage module has a housing, the interior of which defines a liquid storage space, and the housing has an air inlet and an air outlet communicating with the liquid storage space; wherein

[0029] The air inlet is connected to the exhaust port, allowing oxygen discharged from the exhaust port to enter the liquid storage space to filter soluble impurities. The air outlet is connected to the first space and connected to the air inlet port of the controlled atmosphere pipeline, allowing filtered oxygen to be discharged into the controlled atmosphere pipeline.

[0030] Optionally, the box is disposed within the first space.

[0031] Optionally, the shell has a replenishment port communicating with the electrochemical reaction chamber; the box has an outlet communicating with the liquid storage space; the outlet is higher than the replenishment port; and

[0032] The refrigeration and freezing device also includes a liquid replenishment pipeline, the first end of which is connected to the liquid replenishment port of the shell, and the second end of which is connected to the liquid outlet of the box.

[0033] Optionally, the refrigeration and freezing unit also includes:

[0034] A second storage container is disposed within the first space, and its interior defines a second storage space; a ventilation port communicating with the second storage space is provided on the wall of the second storage container; the shell has a lateral opening; and

[0035] The electrode pair includes:

[0036] A cathode plate, disposed at the lateral opening to define, together with the housing, an electrochemical reaction chamber for holding the electrolyte and to seal the ventilation port, and for consuming oxygen in the second storage space through an electrochemical reaction; and

[0037] An anode plate, which is disposed at an interval from the cathode plate in the electrochemical reaction chamber, is used to provide reactants to the cathode plate and generate oxygen through an electrochemical reaction, so as to transfer oxygen from the second storage space to the electrochemical reaction chamber.

[0038] The refrigeration and freezing apparatus of the present invention, by pre-embedding a controlled atmosphere pipeline within the foam layer and connecting the controlled atmosphere pipeline between a first space and a second space, allows gas from the first space to be transported to the second space, enabling the second space to regulate its internal atmosphere using external gas. With this invention, since the controlled atmosphere pipeline is pre-embedded within the foam layer and does not occupy storage space, the refrigeration and freezing apparatus can regulate the atmosphere of the space without affecting the effective volume.

[0039] Furthermore, the refrigeration and freezing apparatus of the present invention, by using a first storage compartment as a first space and a second storage compartment as a second space, and by connecting a controlled atmosphere pipe between the first storage compartment and the second storage compartment, can construct an invisible airflow channel connecting the first storage compartment and the second storage compartment using the controlled atmosphere pipe. Thus, gas exchange can be achieved between the different storage compartments of the refrigeration and freezing apparatus based on the invisible airflow channel.

[0040] Furthermore, in the refrigeration and freezing apparatus of the present invention, when the first inner liner is a refrigeration inner liner and the second inner liner is a freezing inner liner or a variable temperature inner liner, the first storage compartment serves as the gas source for the second storage compartment. Since the temperature of the first inner liner is higher and the temperature of the second inner liner is relatively lower, the gas supply device can be arranged and maintained in the first storage compartment without the need to directly arrange any gas supply device in the second storage compartment. This is beneficial to ensuring the normal operation of the gas supply device, thereby enabling the variable temperature compartment or freezing compartment of the refrigeration and freezing apparatus to achieve controlled atmosphere preservation at low temperatures.

[0041] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0042] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0043] Figure 1 This is a schematic structural diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic structural diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention from another perspective;

[0045] Figure 3 yes Figure 1 A schematic internal structure diagram of the refrigeration and freezing unit shown;

[0046] Figure 4 yes Figure 3 An exploded schematic diagram of the internal structure of the refrigeration and freezing unit shown.

[0047] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0048] Figure 6 yes Figure 4 A schematic structural diagram of the transfer piping of the refrigeration and freezing unit shown;

[0049] Figure 7 yes Figure 4 A schematic perspective view of the transfer piping of the refrigeration and freezing unit shown;

[0050] Figure 8 This is a schematic structural diagram of an oxygen processing device in a refrigeration and freezing apparatus according to an embodiment of the present invention;

[0051] Figure 9 yes Figure 8 An exploded schematic diagram of the oxygen handling unit of the refrigeration and freezing apparatus shown.

[0052] Figure 10 This is a schematic structural diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention;

[0053] Figure 11 yes Figure 10 A schematic internal structure diagram of the refrigeration and freezing unit shown;

[0054] Figure 12 This is a schematic structural diagram of the inner liner of a refrigeration and freezing apparatus according to an embodiment of the present invention;

[0055] Figure 13 yes Figure 11 A schematic structural diagram of the liquid storage module of the refrigeration and freezing device shown;

[0056] Figure 14 yes Figure 13 A schematic perspective view of the liquid storage module of the refrigeration and freezing unit shown. Detailed Implementation

[0057] Reference will now be made in detail to embodiments of the invention, one or more of which are illustrated in the accompanying drawings. The various embodiments provided are intended to explain the invention and not to limit it. In fact, various modifications and variations to the invention will be apparent to those skilled in the art without departing from the scope or spirit of the invention. For example, a feature illustrated or described as part of one embodiment may be used with another embodiment to produce yet another embodiment. Therefore, the invention is intended to cover such modifications and variations within the scope of the appended claims and their equivalents.

[0058] The following reference Figures 1 to 14The following describes the refrigeration and freezing apparatus 10 according to an embodiment of the present invention. The terms "inner," "outer," "upper," "lower," "top," "bottom," "front," "rear," "lateral," "horizontal," and "vertical," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are used only for the convenience of describing the present invention and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. To facilitate illustration of the apparatus structure, some of the accompanying drawings of the present invention are shown in perspective.

[0059] In the description of this embodiment, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," etc., may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. It should be understood that the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0060] In the description of this embodiment, the terms "one embodiment," "some embodiments," "example," "a case," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] This invention provides a refrigeration and freezing device 10. Figure 1 This is a schematic structural diagram of a refrigeration and freezing apparatus 10 according to an embodiment of the present invention. Figure 2 yes Figure 1 The schematic structural diagram of the refrigeration and freezing unit 10 from another perspective is shown. For the sake of illustrating the internal structure, part of the cabinet 100 is omitted in the figure. The refrigeration and freezing unit 10 generally includes the cabinet 100 and the controlled atmosphere piping 440.

[0062] The interior of the enclosure 100 defines a first space and a second space that are spaced apart from each other. The enclosure 100 has a foam layer. For example, the enclosure 100 may also include an inner liner disposed inside the foam layer, the inner side of which may define a storage compartment. The foam layer may be made of a thermal insulation material, such as polyurethane foam.

[0063] The modified atmosphere pipe 440 is embedded in the foam layer and connects the first space and the second space to transport gas from the first space to the second space. "The modified atmosphere pipe 440 is embedded in the foam layer" means that the modified atmosphere pipe 440 is pre-positioned in the foam layer before the foam layer is formed, not that it is installed after the foam layer is formed.

[0064] The first and second spaces can be formed at any location inside the housing 100, such as inside a storage room, within a foam layer, inside a compressor room, or within an air duct, etc. The controlled atmosphere piping 440 can be used to transport any gas, such as oxygen, nitrogen, etc., to regulate the atmosphere of the second space.

[0065] By pre-embedding a controlled atmosphere pipe 440 within the foam layer and connecting the controlled atmosphere pipe 440 between the first and second spaces, gas from the first space can be transported to the second space, allowing the second space to regulate its internal atmosphere using external gas. With this invention, since the controlled atmosphere pipe 440 is pre-embedded within the foam layer and does not occupy storage space, the refrigeration and freezing device 10 can regulate the atmosphere of the space without affecting its effective volume.

[0066] In some optional embodiments, the housing 100 includes a first inner liner 120 and a second inner liner 150. The first inner liner 120 defines a first storage compartment 122, serving as a first space. The second inner liner 150 defines a second storage compartment 152, serving as a second space. That is, in this embodiment, a controlled atmosphere conduit 440 is connected between the first storage compartment 122 and the second storage compartment 152. For example, the first inner liner 120 and the second inner liner 150 may each have an opening as an interface for connecting the controlled atmosphere conduit 440.

[0067] Using the above scheme, the controlled atmosphere pipeline 440 can guide the gas from the first storage chamber 122 to the second storage chamber 152. When it is necessary to adjust the atmosphere of the second storage chamber 152, a gas supply device for generating gas can be arranged in the first storage chamber 122 as the gas supply end of the second storage chamber 152.

[0068] By using the first storage compartment 122 as the first space and the second storage compartment 152 as the second space, and by connecting the controlled atmosphere pipe 440 between the first storage compartment 122 and the second storage compartment 152, an invisible airflow channel connecting the first storage compartment 122 and the second storage compartment 152 can be constructed using the controlled atmosphere pipe 440. Thus, gas exchange can be achieved between the different storage compartments of the refrigeration and freezing device 10 based on the invisible airflow channel.

[0069] In a further example, the first inner liner 120 is a refrigerated inner liner. The second inner liner 150 is a frozen inner liner or a variable temperature inner liner.

[0070] Since the internal temperature of the refrigerated inner liner is relatively high, while the internal temperature of the frozen or variable temperature inner liner is generally low, the gas from the first storage compartment 122 can be guided to the second storage compartment 152 through the controlled atmosphere pipeline 440. This avoids placing the gas supply device directly in the lower temperature second storage compartment 152, thus preventing the gas supply device from freezing.

[0071] When the first inner liner 120 is a refrigerated inner liner and the second inner liner 150 is a frozen inner liner or a variable temperature inner liner, the first storage compartment 122 serves as the gas source for the second storage compartment 152. Since the temperature of the first inner liner 120 is relatively high and the temperature of the second inner liner 150 is relatively low, the gas supply device can be arranged and maintained in the first storage compartment 122 without the need to arrange any gas supply device directly in the second storage compartment 152. This helps to ensure the normal operation of the gas supply device, thereby enabling the variable temperature compartment or frozen compartment of the refrigeration and freezing device 10 to achieve controlled atmosphere preservation at low temperature.

[0072] In some alternative embodiments, the refrigeration and freezing apparatus 10 further includes at least one first storage container 600 and an air connection 860. Figure 3 yes Figure 1 A schematic diagram of the internal structure of the refrigeration and freezing device 10 shown. Figure 4 yes Figure 3 An exploded schematic diagram of the internal structure of the refrigeration and freezing apparatus 10 shown.

[0073] At least one first storage container 600 is disposed within the second storage compartment 152, and its interior defines a first storage space. A vent 610 communicating with the first storage space is provided on the wall of the first storage container 600.

[0074] The gas connection 860 is fixed to the second inner liner 150 and has a first connection port 861 that connects to the gas outlet of the controlled atmosphere pipe 440 and a second connection port 862 that connects to the first interface 811 of the transfer pipe 810 via a pipe. An airflow channel is connected between the first connection port 861 and the second connection port 862, so that the controlled atmosphere pipe 440 connects to the first storage space.

[0075] The first storage container 600 can be a sealed storage container. Using the above structure, the gas supplied to the second storage compartment 152 is guided into the first storage container 600 via the gas connection 860, creating a suitable preservation atmosphere within the first storage container 600. Since the gas supplied to the second storage compartment 152 can be concentratedly guided into the first storage container 600, the solution in this embodiment is beneficial for improving controlled atmosphere efficiency.

[0076] The gas connection 860 can be pre-fixed to the second inner liner 150, for example, it can be pre-fixed to the opening of the second inner liner 150. In one example, the first connection 861 can extend from the opening of the second inner liner 150 to the outside of the second inner liner 150 to connect with the atmosphere duct 440. The second connection 862 can extend to the inside of the second inner liner 150 to connect with the vent 610.

[0077] In some alternative embodiments, there are multiple first storage containers 600. There are multiple second connection ports 862 of the air passage connector 860, which are connected to the air vents 610 of each first storage container 600 in a one-to-one correspondence.

[0078] Using the above structure, the atmosphere of multiple first storage containers 600 can be adjusted simultaneously using the same controlled atmosphere piping 440. Different ingredients can be stored in different first storage containers 600 to prevent cross-contamination or mixing of flavors.

[0079] In some alternative embodiments, the refrigeration and freezing apparatus 10 may further include a one-way valve disposed on the controlled atmosphere duct 440 to allow gas flowing to the second space to pass in one direction, which can ensure the gas delivery efficiency of the controlled atmosphere duct 440.

[0080] In some alternative embodiments, the refrigeration and freezing apparatus 10 further includes a gas passage assembly having a vent 820 that connects to the vent 610 and is used to deliver gas to the first storage space. Figure 5 yes Figure 4 A partial enlarged view of point A. The vent pipe 820 is fixed to the rear side of the first storage container 600. The vent pipe 820 and the vent 610 are nested together and detachable during the pulling of the first storage container 600.

[0081] By arranging an air circuit assembly inside the storage compartment, and ensuring that the vent pipe 820 and vent 610 of the air circuit assembly are nested and detachable during the pulling out of the first storage container 600, when the first storage container 600 is pulled out, the vent 610 moves synchronously with the first storage container 600, thus detaching and separating from each other. When the first storage container 600 is reset, the vent pipe 820 and vent 610 can return to their nested state, thereby connecting to each other. Using the above-described solution of this embodiment, the first storage container 600 can receive external gas while being pullable to regulate the internal atmosphere.

[0082] In some alternative embodiments, the vent 610 is a hollow cylindrical shape and protrudes outward from the back wall of the first storage container 600. One end of the venting conduit 820 has a hollow cylindrical interface into which the vent 610 is nested.

[0083] When the vent 610 is a hollow cylindrical shape and protrudes outward from the back wall of the first storage container 600, one end of the vent pipe 820 is configured as a hollow cylindrical interface into which the vent 610 can be nested. When the first storage container 600 is pulled out, since the vent 610 moves synchronously with the first storage container 600, the vent 610 disengages from the hollow cylindrical interface to achieve disengagement. When the first storage container 600 is reset, the vent 610 can be reinserted into the hollow cylindrical interface to achieve nesting. By adopting the above-described scheme of this embodiment, an airtight connection can be achieved between the first storage container 600 and the vent pipe 820, thereby improving the controlled atmosphere efficiency.

[0084] In some alternative embodiments, the gas assembly also includes a mounting bracket 850, which is fixed within the second storage compartment 152. For example, the mounting bracket 850 may be fixedly connected to the inner wall of the second storage compartment 152. The fixing method includes, but is not limited to, screwing, snap-fitting, welding, and riveting.

[0085] The mounting bracket 850 has a hollow cylindrical channel into which the venting pipe 820 is inserted for fixed assembly. In other words, the venting pipe 820 is fixedly connected to the mounting bracket 850 for fixation.

[0086] By using the mounting bracket 850 to fix the ventilation pipe 820, the ventilation pipe 820 can be fixed at any position away from the inner wall of the second storage compartment 152, which improves the positional flexibility of the ventilation pipe 820.

[0087] In some alternative embodiments, the mounting bracket 850 includes a body portion 851 and a cover portion 852. The body portion 851 is fixed within the second storage compartment 152 and defines a downwardly recessed, arc-shaped plate. The recessed arc-shaped plate serves as the lower channel wall of the hollow cylindrical channel.

[0088] The cover portion 852 defines an upwardly recessed, arc-shaped plate, which serves as the upper channel wall of the hollow cylindrical channel. The upper channel wall and the lower channel wall together form a fixing portion. The fixing portion defines a hollow cylindrical channel into which a vent pipe 820 is inserted for fixed assembly.

[0089] The main body 851 and the cover 852 are detachable and independently designed, not integrally formed. The main body 851 and the cover 852 together define a hollow cylindrical channel for accommodating the vent pipe 820. Since the main body 851 and the cover 852 are detachable and independently designed, when assembling the vent pipe 820, the vent pipe 820 can be first placed on the concave arc-shaped plate of the main body 851, and then the cover 852 can be fixed to the main body 851. This ensures that the vent pipe 820 is securely assembled within the hollow cylindrical channel. Furthermore, when it is necessary to disassemble the vent pipe 820, the main body 851 and the cover 852 can be separated, making the disassembly process simple.

[0090] The cover portion 852 is detachably mounted on top of the body portion 851. The cover portion 852 also defines first threaded holes located on both sides of the upper channel wall. The body portion 851 is correspondingly formed with second threaded holes located on both sides of the lower channel wall and corresponding to the first threaded holes, so as to achieve detachable assembly by screwing.

[0091] The vent 610 is located on the back wall of the first storage container 600. For example, the main body 851 may be disposed against the back wall of the first storage container 600.

[0092] The mounting bracket 850 also includes a bending portion 854, which is formed by bending forward or backward from the end of the main body portion 851 and is disposed against the side wall of the second storage compartment 152. The bending portion 854 has a third threaded hole for fixing the mounting bracket 850 to the second storage compartment 152 by screwing.

[0093] When a vent 610 is opened on the back wall of the first storage container 600, and the main body 851 is fixed to the rear side of the first storage container 600, and a forward-bent portion 854 is connected to the end of the main body 851, the bent portion 851 can be fixedly connected to the side wall of the second storage compartment 152 by screwing. Therefore, based on the above structure, on the one hand, the mounting bracket 850 of the air circuit assembly can be stably assembled in the second storage compartment 152 to fix the joint between the gas regulating pipe 440 and the vent 610. On the other hand, the main body 851 can be fixed at any position away from the back wall of the second storage compartment 152, so that sufficient space is reserved between the main body 851 and the back wall of the second storage compartment 152 for arranging the pipe.

[0094] The vent 610 is a hollow cylindrical shape, bulging outward from the back wall of the first storage container 600 and extending at least partially into the hollow cylindrical channel. A first end 821 of the vent 820 defines a hollow cylindrical interface into which the vent 610 is nested. In some alternative embodiments, a second end 822 of the vent 820 has another hollow cylindrical interface. The refrigeration and freezing apparatus 10 also includes a transfer pipe 810 communicating with the second end 822 of the vent 820 and for conveying gas. Alternatively, the vent 820 may also have a connecting section between the first end 821 and the second end 822.

[0095] When the vent 610 is a hollow cylindrical shape and extends at least partially into the hollow cylindrical channel and is nested within the hollow cylindrical channel defined by the first end 821 of the vent pipe 820, moving the first storage container 600 away from the vent pipe 820 allows the vent 610 to disengage from the hollow cylindrical channel defined by the first end 821 of the vent pipe 820. Moving the first storage container 600 towards the vent pipe 820 allows the vent 610 to be nested back into the hollow cylindrical channel defined by the first end 821 of the vent pipe 820. Therefore, based on the above structure, the first storage container 600 and the controlled atmosphere pipe 440 can be detachably connected in terms of air passage.

[0096] Figure 6 yes Figure 4 A schematic structural diagram of the transfer pipe 810 of the refrigeration and freezing device 10 shown. Figure 7 yes Figure 4 The diagram shows a schematic perspective view of the transfer pipe 810 of the refrigeration and freezing apparatus 10. The interior of the transfer pipe 810 defines an airflow channel 813 that is inclined relative to the horizontal plane. The temperature of the first storage space is generally lower. Since the transfer pipe 810 is directly connected to the vent 610 of the first storage container 600 via a vent pipe 820 and is close to the first storage space, the temperature of the transfer pipe 810 is correspondingly lower when the temperature of the first storage space is lower.

[0097] By tilting the airflow channel 813 of the transfer pipe 810 relative to the horizontal plane, the angle between the airflow channel 813 and the horizontal plane can form an acute angle or a right angle. When the gas flowing through the transfer pipe 810 contains moisture and the temperature of the first storage space is low, the moisture carried by the gas is not easy to remain inside the airflow channel 813. This helps to reduce or avoid the blockage of the airflow channel 813 due to frost and dew, so that the first storage space can achieve sustainable gas exchange with its external environment, thereby enabling the first storage space to maintain a low-temperature preservation atmosphere for a long time.

[0098] The transfer pipe 810 has a first interface 811 that connects to the controlled atmosphere pipe 440 and a second interface 812 that connects to the ventilation pipe 820, and the aforementioned airflow channel 813 is connected between the second interface 812 and the first interface 811, so that the controlled atmosphere pipe 440 connects to the ventilation port 610.

[0099] The first interface 811 and the second interface 812 are hollow cylindrical interfaces formed by outward bulging of the outer surface of the self-rotating pipe 810. The first interface 811 is nested with and detachably disposed from the second end of the controlled atmosphere pipe 440. The second interface 812 is nested with and detachably disposed from another hollow cylindrical interface.

[0100] The interiors of the first interface 811 and the second interface 812 respectively define hollow channels that connect to the airflow channel 813 and are inclined relative to the horizontal plane. That is, the hollow channels of the first interface 811 and the hollow channels of the second interface 812 are also inclined.

[0101] With the above structure, since the hollow channel of each interface is connected to the airflow channel 813, this is equivalent to extending the path of the inclined section of the transfer pipe 810, which can further reduce the risk of air blockage in the transfer pipe 810 and keep the gas regulating pipe 440 and the air inlet 610 unobstructed.

[0102] In some optional embodiments, the airflow channel 813 of the transfer pipe 810 includes a first channel section 813a and a second channel section 813b. The first channel section 813a connects to the hollow channel inside the first interface 811. The second channel section 813b connects to the first channel section 813a and also connects to the hollow channel inside the second interface 812.

[0103] The inclination of the second channel section 813b is different from that of the first channel section 813a. In other words, the angle between the second channel section 813b and the horizontal plane is different from that between the first channel section 813a and the horizontal plane. This will cause the liquid carried by the gas to have different flow velocities when flowing through the first channel section 813a and the second channel section 813b.

[0104] By arranging two channel sections with different inclinations in the transfer pipeline 810, the connection between each channel section and its corresponding interface can be simplified. On the other hand, since the gas flows at different velocities when passing through the first channel section 813a and the second channel section 813b, the above-mentioned solution in this embodiment can further reduce the risk of gas blockage in the airflow channel 813.

[0105] In some alternative embodiments, the angle between the first channel segment 813a and the horizontal plane is greater than the angle between the second channel segment 813b and the horizontal plane.

[0106] Using the above scheme, when the gas regulating pipeline 440 delivers gas to the storage space, even if the liquid carried by the gas may condense in the first channel section 813a and the second channel section 813b, since the liquid carried by the gas will first condense in the first channel section 813a, the flow velocity of the liquid droplets is relatively high. When these liquid droplets enter the second channel section 813b, they will wash the surface of the second channel section 813b and carry the liquid droplets condensed in the second channel section 813b forward at high speed, thereby effectively reducing the risk of gas blockage in the transfer pipeline 810.

[0107] In some optional embodiments, a first interface 811 is formed in the upper section of the transfer pipe 810, and the hollow channel inside the first interface 811 is inclined upwards in a direction away from the outer surface of the transfer pipe 810. The central axis of the first channel section 813a is coaxial with the central axis of the hollow channel inside the first interface 811. That is, the inclination degree of the hollow channel inside the first interface 811 is the same as the inclination degree of the first channel section 813a.

[0108] The second interface 812 is formed in the side section of the transfer pipe 810 and is located below the second interface 812. The hollow channel inside the second interface 812 is inclined downwards in a direction away from the outer surface of the transfer pipe 810. The central axis of the second channel section 813b is coaxial with the central axis of the hollow channel inside the second interface 812. That is, the inclination degree of the hollow channel inside the second interface 812 is the same as the inclination degree of the second channel section 813b.

[0109] Based on the above structure, the modified atmosphere pipe 440 can be connected to the upper part of the transfer pipe 810 via the gas connection 860, and the vent pipe 820 can be connected to the side of the transfer pipe 810.

[0110] In one example, the venting line 820 can be nested within the hollow channel of the second interface 812.

[0111] In one example, the vent 820 is made of an elastic material. Because the vent 820, made of an elastic material, can fit tightly against the nested interface, the use of the vent 820 to connect the second interface 812 and the vent 610 enables an airtight connection between the second interface 812 and the vent 610.

[0112] In some optional embodiments, the refrigeration and freezing apparatus 10 further includes an oxygen treatment device 300. The oxygen treatment device 300 is disposed within the housing 100 and has a housing 320 and an electrode pair. The interior of the housing 320 defines an electrochemical reaction chamber for holding an electrolyte. The electrode pair is disposed within the electrochemical reaction chamber and is used to transfer external oxygen to the electrochemical reaction chamber through an electrochemical reaction. An exhaust port 323 is provided on the housing 320, communicating with the electrochemical reaction chamber, for discharging oxygen from the electrochemical reaction chamber. The exhaust port 323 communicates with a first space and serves as a gas supply port for the controlled atmosphere conduit 440.

[0113] Figure 8 This is a schematic structural diagram of the oxygen processing device 300 of a refrigeration and freezing apparatus 10 according to an embodiment of the present invention. Figure 9 yes Figure 8 A schematic exploded view of the oxygen processing device 300 of the refrigeration and freezing unit 10 shown.

[0114] The electrode pair may include a cathode plate 330 and an anode plate 340. The electrochemical reaction chamber is the place where the cathode plate 330 and the anode plate 340 carry out the electrochemical reaction. It can be filled with an alkaline electrolyte, such as 1 mol / L NaOH, the concentration of which can be adjusted according to actual needs.

[0115] The housing 320 has a lateral opening 321. For example, the housing 320 may be in the shape of a flat cuboid. The lateral opening 321 may be located on any surface of the housing 320, such as the top surface, bottom surface, or side surface. In one example, the lateral opening 321 may be located on the surface of the housing 320 with the largest area.

[0116] The cathode plate 330 is positioned at the side opening 321 to define, together with the housing 320, an electrochemical reaction chamber for holding the electrolyte, and is used to consume oxygen in the second storage space through an electrochemical reaction. Oxygen in the air can undergo a reduction reaction at the cathode plate 330, namely: O2 + 2H2O + 4e - →4OH - .

[0117] An anode plate 340 and a cathode plate 330 are spaced apart within an electrochemical reaction chamber. These plates provide reactants to the cathode plate 330 and generate oxygen via an electrochemical reaction, thereby transferring oxygen from the second storage space to the electrochemical reaction chamber. The OH- produced by the cathode plate 330... - An oxidation reaction can occur at the anode plate 340, generating oxygen, i.e.: 4OH⁻ - →O2 + 2H2O + 4e - .

[0118] The above examples of electrochemical reactions of cathode plate 330 and anode plate 340 are merely illustrative. Based on the understanding of the above embodiments, those skilled in the art should be able to easily change the type of electrochemical reaction or extend the structure of oxygen treatment device 300 applicable to other types of electrochemical reactions. All such changes and extensions should fall within the protection scope of this invention.

[0119] The first end of the controlled atmosphere line 440 can be directly connected to the transfer line 810. The second end of the controlled atmosphere line 440 can be directly or indirectly connected to the exhaust port 323.

[0120] In some optional embodiments, the housing 320 has a replenishment port 322 that connects to the electrochemical reaction chamber. The refrigeration and freezing device 10 also includes a liquid storage module 500, which is disposed within the housing 100 and has a box 510. The interior of the box 510 defines a liquid storage space for storing liquid, which connects to the replenishment port 322 to replenish electrolyte to the electrochemical reaction chamber. The liquid contained in the liquid storage space can be water or electrolyte, and its concentration can be lower than that of the electrolyte contained in the electrochemical reaction chamber.

[0121] In one example, box 510 can be located within the first space.

[0122] The top wall of the housing 510 has an air inlet 512 and an air outlet 513. The air inlet 512 connects to the exhaust port 323, allowing oxygen discharged from the exhaust port 323 to enter the liquid storage space to filter soluble impurities, such as electrolyte carried by the oxygen. The air outlet 513 allows the filtered oxygen to be discharged outwards. The air outlet 513 connects to the first space and is directly connected to the air inlet port of the controlled atmosphere pipeline 440, allowing the filtered oxygen to be discharged into the controlled atmosphere pipeline.

[0123] With the above structure, the controlled atmosphere pipeline 440 can deliver clean oxygen to the first storage space.

[0124] In one example, the refrigeration and freezing device 10 further includes a second storage container 700 disposed within the first space, and its interior defining a second storage space. A ventilation port communicating with the second storage space is provided on the wall of the second storage container 700. The cathode plate 330 of the oxygen treatment device 300 is in airflow communication with the second storage space, thereby reducing the oxygen content of the second storage space through an electrochemical reaction. For example, the housing 320 may have a lateral opening 321. This lateral opening 321 may face the ventilation port. The cathode plate 330 is disposed at the lateral opening 321 to, together with the housing 320, define an electrochemical reaction chamber for holding electrolyte and close the ventilation port, and is used to consume oxygen in the second storage space through an electrochemical reaction. In this example, the oxygen treatment device may be disposed within the first space and the ventilation port may be blocked, thereby allowing airflow communication between the cathode plate 330 and the second storage space.

[0125] In one example, the oxygen treatment device 300 may be disposed within the foam layer. Figure 10 This is a schematic structural diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention. Figure 11 yes Figure 10 The schematic internal structure diagram of the refrigeration and freezing device shown has the foam layer omitted to clearly illustrate the structure and connection relationships of each component. In this case, the refrigeration and freezing device 10 may further include a ventilation pipe 200 embedded in the foam layer. The ventilation pipe 200 may include an inlet pipe 210 and a return pipe 220.

[0126] The intake pipe 210 is used to guide the gas in the second storage space to the cathode plate 330, and the return pipe 220 is used to guide the gas flowing through the cathode plate 330 back to the second storage space to reduce the oxygen content in the second storage space. For example, the inner liner 120 has a first ventilation port connected to the first end of the intake pipe 210 and a second ventilation port connected to the first end of the return pipe 220 on its wall. Each ventilation port is an opening formed on the wall of the inner liner 120. The second ends of the intake pipe 210 and the return pipe 220 can be connected to the two ends of the cathode plate 330, respectively. Specifically, the second end of the intake pipe 210 can be connected to the upwind side of the cathode plate 330, and the second end of the return pipe 220 can be connected to the downwind side of the cathode plate 330, so that the gas flowing out of the intake pipe 210 can flow into the return pipe 220 after passing through the cathode plate 330.

[0127] With the above structure, the second storage space and the oxygen treatment device 300 are connected by the intake pipe 210 and the return pipe 220. The gas with a high oxygen content in the second storage space can flow to the cathode plate 330 through the intake pipe 210, so that the cathode plate 330 can use the oxygen in it as a reactant to carry out an electrochemical reaction to form a low oxygen gas with a low oxygen content. This low oxygen gas can be returned to the second storage space through the return pipe 220, thereby reducing the oxygen content in the second storage space.

[0128] The oxygen treatment device 300 can be located at any part of the foam layer, such as the back of the inner liner 120, or the top, bottom, and side of the inner liner 120. In one example, for a French door refrigerator or a T-type refrigerator, the oxygen treatment device 300 can be located in the gap between the upper inner liner 120 and the lower inner liner 120.

[0129] In some alternative embodiments, the side of the foam layer facing away from the inner liner 120 has an assembly groove that communicates with the external environment of the foam layer for assembling the oxygen treatment device 300.

[0130] After the foam layer is formed, the oxygen treatment device 300 can be assembled into the mounting groove, thus being disposed within the foam layer. The mounting groove can be pre-formed during the foam layer forming process. The mounting groove is recessed along the thickness direction of the foam layer towards the inner liner 120, forming a gap between the mounting groove and the inner liner 120. In other words, the mounting groove does not penetrate the foam layer, which prevents the oxygen treatment device 300 assembled into the mounting groove from being in direct contact with the inner liner 120. That is, a certain thickness of heat insulation material is formed between the inner liner 120 and the oxygen treatment device 300.

[0131] By employing the above structure, an assembly groove communicating with the external environment of the foam layer is opened on the side of the foam layer facing away from the inner liner 120, and a gap is formed between the assembly groove and the inner liner 120. This allows the oxygen treatment device 300 to be installed into the assembly groove after the foam layer has been formed, simplifying the assembly and disassembly of the oxygen treatment device 300. Furthermore, since the oxygen treatment device 300 is not in close contact with the inner liner 120, the solution of this embodiment can reduce or avoid the impact of the low-temperature environment of the refrigeration and freezing device 10 on the normal conduction of the electrochemical reaction.

[0132] The oxygen treatment device 300 can be fixed in the mounting groove, and the fixing methods include but are not limited to screwing, snapping, riveting, welding and bonding.

[0133] In some alternative embodiments, the housing 100 further includes a shell 170, which covers the outside of the foam layer to sandwich the foam layer with the inner liner 120. The shell 170 has a back plate, and a mounting groove is formed between the back wall of the inner liner 120 and the back plate of the shell 170. That is, in this embodiment, the oxygen treatment device 300 is disposed within the foam layer on the back of the inner liner 120. The back plate of the shell 170 can close the opening of the mounting groove for a more aesthetically pleasing appearance.

[0134] In one example, the back panel of the housing 170 may have a mounting opening facing the mounting groove. During assembly, the oxygen treatment device 300 can be directly fixed into the mounting groove through the mounting opening without removing the back panel of the housing 170. In a further example, a cover plate may be provided at the mounting opening to conceal it for aesthetic purposes. In another example, the oxygen treatment device 300 can be fixed into the mounting groove first, and then the back panel of the housing 170 can be placed over the back of the foam layer.

[0135] With the above structure, the oxygen treatment device 300 does not need to be pre-installed in the foam layer, avoiding adverse effects of the foaming process on the structure and performance of the oxygen treatment device 300. Furthermore, the assembly process of the oxygen treatment device 300 can be performed on the back of the refrigeration and freezing device 10, which has the advantages of simple assembly process.

[0136] In yet another example, the housing 100 also defines a compressor chamber for mounting the compressor. An oxygen treatment device 300 may be disposed within the compressor chamber. For example, a support plate for securing the compressor is provided at the bottom of the compressor chamber, and the oxygen treatment device 300 may be directly or indirectly disposed on the support plate.

[0137] In one example, the housing 510 is disposed within the foam layer. By disposing the housing 510 of the liquid storage module 500 within the foam layer and connecting the liquid storage space of the housing 510 to the liquid circuit of the oxygen treatment device 300, the liquid stored in the housing 510 can be used to replenish the electrolyte in the oxygen treatment device 300. Since the housing 510 does not occupy the second storage compartment, the refrigeration and freezing device 10 can replenish the electrolyte in the oxygen treatment device 300 using the liquid storage module 500 without affecting the volume ratio, allowing the oxygen treatment device 300 to continuously regulate the oxygen content in the second storage space.

[0138] The housing 510 of the liquid storage module 500 can be located at any part of the foam layer, such as on the side of the inner liner 120, or on the top, bottom, or back of the inner liner 120. For a French door refrigerator or a T-type refrigerator, in one example, the housing 510 of the liquid storage module 500 can be located in the gap between the upper inner liner 120 and the lower inner liner 120.

[0139] In some alternative embodiments, the housing 100 further includes a shell, with a foam layer formed between the shell and the inner liner 120. The shell covers the outside of the foam layer to clamp the foam layer with the inner liner 120. In one example, the refrigeration and freezing device may include a refrigeration inner liner, a variable-temperature inner liner, and a freezing inner liner. In a further example, the housing may be disposed within the foam layer outside the refrigeration inner liner.

[0140] Figure 12 This is a schematic structural diagram of the inner liner 120 of a refrigeration and freezing apparatus 10 according to an embodiment of the present invention. The inner liner 120 has an open-shaped interaction window 124, and the foam layer has a mounting groove communicating with the interaction window 124 for assembling a liquid storage module 500. After the foam layer is formed, the liquid storage module 500 can be assembled into the mounting groove, thereby being disposed within the foam layer. The mounting groove can be pre-formed during the foam layer forming process. The mounting groove is recessed along the thickness direction of the foam layer in a direction away from the interaction window 124, and forms a gap with the shell. In other words, the mounting groove does not penetrate the foam layer, so that the liquid storage module 500 assembled into the mounting groove will not be in close contact with the shell. That is, a certain thickness of heat insulation material is formed between the shell and the oxygen treatment device 300.

[0141] With the above structure, the liquid storage module 500 does not need to be pre-installed in the foaming layer, avoiding adverse effects of the foaming process on the structure and performance of the liquid storage module 500. Furthermore, the assembly process of the liquid storage module 500 can be performed in the second storage room, which has the advantages of simple assembly process.

[0142] By creating an interactive window 124 on the inner liner 120 and providing an installation groove communicating with the interactive window 124 in the foam layer, and creating a gap between the installation groove and the shell, the liquid storage module 500 can be installed into the installation groove after the foam layer is formed. This simplifies the installation and removal of the liquid storage module 500. Furthermore, since the installation groove does not penetrate the foam layer, the solution in this embodiment can reduce or avoid a significant reduction in the insulation performance of the refrigeration and freezing device 10 due to installing the liquid storage module 500 within the foam layer.

[0143] The liquid storage module 500 can be fixed in the mounting groove, and the fixing methods include but are not limited to screwing, snap-fitting, riveting, welding and bonding.

[0144] In some alternative embodiments, the housing 510 has an injection port 514 that communicates with the liquid storage space, and the injection port 514 is exposed through the interactive window 124, thereby allowing external liquid to be injected into the liquid storage space. Figure 13 yes Figure 11 The diagram shows a schematic structural diagram of the liquid storage module of the refrigeration and freezing device. Figure 14 yes Figure 13 A schematic perspective view of the liquid storage module of the refrigeration and freezing apparatus shown. For example, the liquid inlet 514 is provided on the side wall of the housing 510 facing the second storage compartment, and is exposed through the interactive window 124.

[0145] By opening an interactive window 124 on the inner liner 120 and connecting the liquid inlet 514 of the housing 510 to the second storage compartment through the interactive window 124, the interactive window 124 can be used as an operation window for the user to replenish the liquid storage space. Since the interactive window 124 exposes the liquid inlet 514, when the liquid level in the storage space is insufficient, external liquid can be injected into the storage space through the liquid inlet 514. Therefore, the above-mentioned solution in this embodiment simplifies the liquid replenishment method of the liquid storage module 500, enabling the liquid storage module 500 to continuously replenish electrolyte to the oxygen treatment device 300.

[0146] A cover 550 is provided on the housing 510. The cover 550 is reciprocally positioned at the liquid inlet 514 to open or close the liquid inlet 514. When the cover 550 opens the liquid inlet 514, the liquid inlet 514 is exposed. By providing the cover 550 on the housing 510 and using the cover 550 to open or close the liquid inlet 514, the liquid inlet 514 can be kept open only when receiving external liquid, thereby reducing or preventing foreign matter from entering the liquid storage space and keeping the liquid stored in the liquid storage space clean.

[0147] The cap 550 may be a push-button spring cap that is rotatably popped up under pressure to extend at least partially into the second storage compartment via the interaction window 124, thereby opening the filling port 514.

[0148] In one example, the bottom of the cover 550 can be connected to the box 510 via a pivot and is pivotally connected to the box 510. When the cover 550 closes the injection port 514, its outer surface is coplanar with the outer surface of the box 510, and at this time the top of the cover 550 can be connected to the box 510 via a snap-fit ​​structure; when it is necessary to open the injection port 514, the top of the cover 550 can be pressed to disengage the top of the cover 550 from the box 510, at which time the cover 550 can rotate around the pivot and at least partially extend into the second storage compartment, thereby opening the injection port 514.

[0149] Based on the understanding of the embodiments of this disclosure, those skilled in the art should readily understand the assembly structure between the push-button spring cover and the housing 510, which will not be described in detail here.

[0150] In some alternative embodiments, at least a portion of the housing 510 is made of a transparent material to form a visible area 516 for displaying the liquid volume of the housing 510. The transparent material may be polymethyl methacrylate, polycarbonate, polyethylene terephthalate, or polypropylene, etc.

[0151] In this embodiment, the visible area 516 is exposed through the interactive window 124. The visible area 516 extends longitudinally and is located below the injection port 514. For example, the visible area 516 may also be located on the side wall of the housing 510 facing the second storage compartment so that it can be exposed through the interactive window 124.

[0152] By providing a visible area 516 on the housing 510 and positioning it opposite the interactive window 124, the interactive window 124 can be used as an observation window for the user to observe the liquid level in the storage space. Since the interactive window 124 exposes the visible area 516, the user can easily observe the liquid level in the storage space. Therefore, the above-described solution in this embodiment provides the user with an intuitive interactive experience. When the liquid level in the storage space is insufficient, the user can take timely measures to replenish the liquid.

[0153] In one example, the interactive window 124 may be located on the side wall of the inner liner 120, and the mounting groove is correspondingly provided between the side wall of the inner liner 120 and the side wall of the shell.

[0154] Since the side wall of the inner liner 120 is not easily obstructed by the items stored in the second storage compartment and is close to the user's movable area, an interactive window 124 is set on the side wall of the inner liner 120, and the liquid storage module 500 is embedded in the foam layer on the side of the box 100. This can reduce the difficulty of interaction between the user and the liquid storage module 500 to a certain extent. The user can quickly obtain the liquid storage information of the liquid storage module 500 without moving the items stored in the second storage compartment, and can perform a liquid replenishment operation in time when the liquid storage of the liquid storage module 500 is insufficient.

[0155] In some optional embodiments, the liquid storage module 500 may further include a liquid level sensor disposed within the liquid storage space and used to detect the liquid level in the liquid storage space. When the liquid level sensor detects that the liquid level in the liquid storage space is lower than a set value, the refrigeration and freezing device 10 may issue an alarm signal, for example, by transmitting the alarm signal to the user via wireless transmission technology, to remind the user to replenish the liquid in time.

[0156] In some further examples, the housing 510 has a first sidewall flush with the sidewall of the inner liner 120 and enclosing the interaction window 124, and a second sidewall opposite the first sidewall and hidden inside the mounting groove. The injection port 514 is located on the first sidewall. The opening area of ​​the interaction window 124 can be approximately the same as the surface area of ​​the first sidewall of the housing 510, such that the first sidewall of the housing 510 precisely encloses the interaction window 124 and connects the outer surface of the first sidewall with the inner surface of the sidewall of the inner liner 120 to form a complete plane, resulting in an aesthetically pleasing appearance.

[0157] The injection port 514 can be located in the upper section of the first sidewall. The visible area 516 can also be located on the first sidewall, for example, in the middle or lower section of the first sidewall.

[0158] The housing 510 can be generally flattened into a cuboid shape. The housing 510 has an outlet 511 that connects to the liquid storage space. The housing 510 also has a top wall and a bottom wall connected between the first and second side walls and arranged vertically opposite each other. The bottom wall has an outlet 511 that connects to a replenishment port 322 to replenish electrolyte to the electrochemical reaction chamber.

[0159] In some optional embodiments, the housing 510 further has a third sidewall and a fourth sidewall connected between the first sidewall and the second sidewall and disposed opposite each other in the horizontal direction. The outer surface of the third sidewall and / or the fourth sidewall is connected to a fastener 517, which has a screw hole for engaging with a screw to fix the housing 510 to the mounting groove.

[0160] The refrigeration and freezing device 10 also includes a liquid replenishment pipe 420 embedded in the foam layer. The first end of the liquid replenishment pipe 420 is connected to the liquid replenishment port 322 of the oxygen treatment device 300, and the second end is connected to the liquid outlet 511 of the liquid storage module 500. This guides the liquid flowing out of the liquid storage space from the liquid outlet 511 to the liquid replenishment port 322, thereby replenishing the electrochemical reaction chamber. The liquid outlet 511 is higher than the liquid replenishment port 322, so that the liquid in the liquid storage space can automatically flow into the electrochemical reaction chamber under gravity without the need for a power unit.

[0161] Of course, in other examples, the outlet 511 can also be changed to be lower than or level with the replenishment outlet 322. In this case, a pump can be installed on the replenishment line 420 to drive the liquid in the storage space into the electrochemical reaction chamber under the action of the pump; or the siphon principle can be used to make the liquid in the storage space flow into the electrochemical reaction chamber.

[0162] In some further examples, a one-way valve may be provided on the replenishment line 420 to allow liquid from the outlet 511 to pass through in one direction, ensuring the unidirectional flow of liquid through the replenishment line 420.

[0163] The refrigeration and freezing device 10 also includes a filter pipe 430 embedded in the foam layer. The first end of the filter pipe 430 is connected to the exhaust port 323 of the oxygen treatment device 300, and the second end of the filter pipe 430 is connected to the air inlet 512 of the box body 510, so as to guide the oxygen flowing out of the exhaust port 323 to the air outlet 513, thereby entering the liquid storage space for filtration.

[0164] The liquid storage module 500 may further include a filter pipe 540 and an outlet pipe. The filter pipe 540 is inserted into the liquid storage space from the inlet 512 and extends to the bottom section of the liquid storage space to guide the oxygen to be filtered into the liquid storage space, allowing soluble impurities in the oxygen to dissolve in the liquid storage space. The outlet pipe is inserted into the housing 510 from the outlet 513 and extends to the upper section of the liquid storage space, located above the liquid stored in the liquid storage space, to guide the filtered oxygen out through it.

[0165] Using the above method, the oxygen to be filtered can reach the liquid storage space under the guidance of the filter pipe 540, and flow through the liquid stored in the liquid storage space, causing soluble impurities in the oxygen to dissolve in the liquid storage space, thus completing the gas purification. The purified gas can flow into a designated space under the guidance of the outlet pipe, thereby regulating the oxygen content of the space.

[0166] In an optional embodiment, the liquid storage module 500 further includes a gas resistance mechanism 530 disposed within the liquid storage space, which divides the liquid storage space into a filtration zone and a non-filtration zone that block the gas flow. The filtration zone is used to allow gas flowing into the air inlet 512 to pass through it for filtration. The non-filtration zone is used to receive liquid from external sources.

[0167] The filtration zone and the non-filtration zone can be arranged side-by-side laterally. The air-blocking mechanism 530 blocks a portion of the liquid path between the filtration zone and the non-filtration zone, ensuring liquid flow between them even when the air path is blocked. For example, the air-blocking mechanism 530 is a partition-like structure located between the filtration zone and the non-filtration zone, extending downwards from the lower surface of the top wall of the housing 510 and forming a gap with the upper surface of the bottom wall of the housing 510. The filtration zone is located on one side of the air-blocking mechanism 530, and the non-filtration zone is located on the other side. The air inlet 512 and the air outlet 513 can be respectively located on the top wall of the area where the filtration zone is located. The liquid inlet 514 can be located on the top wall of the area where the non-filtration zone is located.

[0168] By employing the above structure, and by setting an air resistance mechanism 530 within the liquid storage space, and using the air resistance mechanism 530 to divide the liquid storage space into a filtration zone and a non-filtration zone with blocked airflow, the function of purifying gas can be achieved only within the filtration zone. Since the filtration zone is only a sub-space of the liquid storage space, and the airflow between it and other areas of the liquid storage space is blocked, the gas entering the air inlet 512 can only flow within the filtration zone and will not freely diffuse into the non-filtration zone, thus preventing rapid discharge. Therefore, the liquid storage module 500 of this embodiment has a high purified gas release rate.

[0169] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A refrigeration and freezing apparatus, comprising: The enclosure defines a first space and a second space that are spaced apart from each other; and the enclosure has a foam layer. and A controlled atmosphere pipeline is embedded in the foam layer and connected between the first space and the second space to transport gas from the first space to the second space; The first inner liner defines a first storage room, which serves as the first space; and The second inner liner defines a second storage compartment, which serves as the second space. At least one first storage container is removably disposed in the second storage room and defines a first storage space therein; the wall of the first storage container is provided with a vent that connects to the first storage space; A gas circuit assembly having a vent line connecting to the vent and for supplying gas to the first storage space; The ventilation pipe is fixed to the rear side of the first storage container; and the ventilation pipe and the ventilation port are nested together and detachable during the pulling and unpulling process of the first storage container. A transfer pipe is installed between the controlled atmosphere pipe and the ventilation pipe; The transfer pipe has a first interface connected to the controlled atmosphere pipe and a second interface connected to the ventilation pipe, and an airflow channel is connected between the second interface and the first interface, so that the controlled atmosphere pipe is connected to the ventilation port. The airflow channel of the transfer pipe includes a first channel section and a second channel section; the airflow channel of the transfer pipe is inclined relative to the horizontal plane, and the inclination degree of the second channel section is different from that of the first channel section.

2. The refrigeration and freezing apparatus according to claim 1, wherein, The first inner liner is a refrigerator inner liner; and The second inner liner is either a frozen inner liner or a variable temperature inner liner.

3. The refrigeration and freezing apparatus according to claim 1, further comprising: An air passage connector is fixed to the second inner liner and has a first connection port that connects to the air outlet of the controlled atmosphere pipeline and a second connection port that connects to the first interface through the pipeline. An airflow channel is connected between the first connection port and the second connection port, so that the controlled atmosphere pipeline connects to the first storage space.

4. The refrigeration and freezing apparatus according to claim 3, wherein, There are multiple first storage containers; and each first storage container is connected to one of the aforementioned transfer pipes. The second joint of the gas connection component is multiple, and is connected one-to-one with the first interface of the transfer pipe corresponding to each of the first storage containers through a pipeline.

5. The refrigeration and freezing apparatus according to claim 1, further comprising: A one-way valve, installed on the gas regulating line, is used to allow gas flowing into the second space to pass through in one direction only.

6. The refrigeration and freezing apparatus according to claim 1, further comprising: An oxygen processing device having a housing and electrode pairs; in The housing defines an electrochemical reaction chamber for holding electrolyte; the electrode pair is disposed in the electrochemical reaction chamber and is used to transfer external oxygen to the electrochemical reaction chamber through an electrochemical reaction; the housing also has an exhaust port communicating with the electrochemical reaction chamber for discharging oxygen from the electrochemical reaction chamber. The exhaust port is connected to the first space and serves as the gas supply port for the gas regulating pipeline.

7. The refrigeration and freezing apparatus according to claim 6, further comprising: A liquid storage module has a housing, the interior of which defines a liquid storage space, and the housing has an air inlet and an air outlet communicating with the liquid storage space; wherein The air inlet is connected to the exhaust port, allowing oxygen discharged from the exhaust port to enter the liquid storage space to filter soluble impurities. The air outlet is connected to the first space and connected to the air inlet port of the controlled atmosphere pipeline, allowing filtered oxygen to be discharged into the controlled atmosphere pipeline.

8. The refrigeration and freezing apparatus according to claim 7, wherein, The box is disposed within the first space.

9. The refrigeration and freezing apparatus according to claim 7, wherein, The shell has a liquid replenishment port communicating with the electrochemical reaction chamber; the box has a liquid outlet communicating with the liquid storage space; the liquid outlet is higher than the liquid replenishment port; and The refrigeration and freezing device also includes a liquid replenishment pipeline, the first end of which is connected to the liquid replenishment port of the shell, and the second end of which is connected to the liquid outlet of the box.

10. The refrigeration and freezing apparatus according to claim 6, further comprising: A second storage container is disposed within the first space, and its interior defines a second storage space; The second storage container has a ventilation port on its wall that connects to the second storage space; the shell has a side opening. and The electrode pair includes: A cathode plate is disposed at the lateral opening to define, together with the housing, an electrochemical reaction chamber for holding electrolyte and to close the vent, and is used to consume oxygen in the second storage space through an electrochemical reaction. and An anode plate, which is disposed at an interval from the cathode plate in the electrochemical reaction chamber, is used to provide reactants to the cathode plate and generate oxygen through an electrochemical reaction, so as to transfer oxygen from the second storage space to the electrochemical reaction chamber.

Images