Refrigerator

Abstract

The utility model provides a refrigerator which comprises a refrigerator body, a door body and a fresh-keeping module, the door body is connected to the refrigerator body, and the fresh-keeping module comprises at least one fresh-keeping space and a gas processing device communicated with the fresh-keeping space in an airflow mode. The gas treatment device is configured to change the proportion of specific gas in the fresh-keeping space through electrochemical reaction; wherein the fresh-keeping space and / or the gas treatment device are / is arranged on the door body; when the preservation module is used for achieving modified atmosphere preservation, the gas treatment device and / or the preservation space are / is arranged on the door body, and waste of the storage space in the box body can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration devices, in particular to a refrigerator. Background Art

[0002] Controlled atmosphere (CA) preservation achieves this by adjusting the ratio of gases (e.g., oxygen) within the food storage space. To achieve this, refrigerators typically require a gas processing device, which processes specific gas components, increasing or decreasing their content.

[0003] However, the gas processing device and the fresh-keeping space are usually arranged in the box body of the refrigerator, for example, in the cold storage room, which causes a waste of storage space in the box body. Summary of the Invention

[0004] The purpose of the utility model is to provide a refrigerator which reduces the waste of storage space in the box.

[0005] To achieve one of the above-mentioned purposes of the utility model, an embodiment of the utility model provides a refrigerator, comprising:

[0006] Box;

[0007] A door body connected to the box body;

[0008] A fresh-keeping module, comprising at least one fresh-keeping space and a gas processing device connected to the fresh-keeping space, wherein the gas processing device is configured to change the proportion of a specific gas in the fresh-keeping space through an electrochemical reaction;

[0009] Wherein, the fresh-keeping space and / or the gas processing device are arranged on the door body.

[0010] As a further improvement of an embodiment of the present invention, the door body includes a door shell forming a door chamber and a door panel connected to the door shell and covering the door chamber, and the gas processing device is arranged in the door chamber.

[0011] As a further improvement of an embodiment of the present invention, the fresh-keeping module includes fresh-keeping boxes corresponding to the fresh-keeping spaces one by one, each fresh-keeping space is formed in a corresponding fresh-keeping box, and the fresh-keeping box is arranged in the door compartment.

[0012] As a further improvement of an embodiment of the present invention, the box body has a refrigeration compartment, the door shell has an air inlet duct and an air return duct connected to the door compartment, and the air inlet duct and the air return duct are respectively connected to the refrigeration compartment.

[0013] As a further improvement of one embodiment of the present invention, the fresh-keeping module includes a first fresh-keeping box and at least one second fresh-keeping box, the proportion of specific gas in the fresh-keeping space of the first fresh-keeping box is greater than the proportion of specific gas in the fresh-keeping space of the second fresh-keeping box, and the first fresh-keeping box and the second fresh-keeping box are located on the same side of the gas processing device.

[0014] As a further improvement of one embodiment of the present invention, the gas processing device has a reaction space, and the fresh-keeping module also includes a docking structure. After the fresh-keeping box is docked with the gas processing device, the airflow of the docking structure connects the fresh-keeping space and the reaction space.

[0015] The docking structure includes a valve assembly arranged on the gas processing device and a trigger structure arranged on the fresh-keeping box. The valve assembly has a connected state in which it abuts against the trigger structure and a closed state in which it is disengaged from the trigger structure. In the connected state, a docking space is formed between the trigger structure and the valve assembly, and the airflow in the reaction space is connected to the docking space.

[0016] As a further improvement of one embodiment of the present invention, the gas processing device has a ventilation port exposing the reaction space, and the valve assembly includes a movable rod matching the ventilation port, a trigger block connected to the movable rod, and an elastic member and a sealing ring sleeved on the movable rod. In the closed state, the elastic member abuts between the trigger block and the gas processing device to allow the sealing ring to block the ventilation port.

[0017] As a further improvement of one embodiment of the present invention, the fresh-keeping box has a docking port exposing the fresh-keeping space, and the fresh-keeping module also includes a sealing plug that cooperates with the docking port. The sealing plug has a limiting portion located within the fresh-keeping space, a sealing portion located outside the fresh-keeping space, and a movable portion connecting the limiting portion and the sealing portion. In the connected state, the limiting portion abuts against the fresh-keeping box, and the sealing portion is disengaged from the abutment with the fresh-keeping box, so that the docking port connects the fresh-keeping space and the docking space.

[0018] As a further improvement of one embodiment of the present invention, the valve assembly also includes a valve seat that slides with the trigger block, and the trigger structure includes a trigger cover that matches the valve seat and a trigger boss connected to the trigger cover. In the connected state, the trigger cover covers the valve seat, and the trigger boss abuts against the trigger block.

[0019] As a further improvement of one embodiment of the present invention, the gas processing device includes a cathode and an anode arranged at intervals, the cathode is configured to consume oxygen through an electrochemical reaction, and the anode is configured to provide reactants to the cathode and generate oxygen through an electrochemical reaction.

[0020] As a further improvement of one embodiment of the present invention, the fresh-keeping module includes a first fresh-keeping space and a second fresh-keeping space spaced apart from each other, the first fresh-keeping space is formed in the door compartment and located on one side of the gas processing device, and the second fresh-keeping space is formed in the door compartment and located on the opposite side of the gas processing device.

[0021] As a further improvement of one embodiment of the present invention, the proportion of the specific gas in the first fresh-keeping space is greater than the proportion of the specific gas in the second fresh-keeping space, and the gas processing device has a first ventilation port and at least one second ventilation port, the first ventilation port is exposed to the first fresh-keeping space, and the second ventilation port is exposed to the second fresh-keeping space.

[0022] As a further improvement of one embodiment of the present invention, the box body has a refrigeration compartment, the door body covers at least part of the refrigeration compartment, the fresh-keeping module includes a fresh-keeping box, one of the gas processing device and the fresh-keeping box is arranged in the refrigeration compartment, and the other of the gas processing device and the fresh-keeping box is arranged on the side of the door body facing the refrigeration compartment.

[0023] As a further improvement of one embodiment of the present invention, the box body has a refrigeration compartment, the door body covers at least part of the refrigeration compartment, and includes a door shell forming a storage cavity and a door panel connected to the door shell and covering the side of the storage cavity away from the refrigeration compartment, the fresh-keeping module includes a fresh-keeping box, the gas processing device is arranged in the refrigeration compartment, and the fresh-keeping box is arranged in the storage cavity.

[0024] As a further improvement of one embodiment of the present invention, the fresh-keeping module also includes a gas pipeline connecting the gas processing device and the fresh-keeping box, and the refrigerator also includes a hinge box connected to the box body and a hinge rod connected to the door body and at least partially passed through the hinge box, and a portion of the gas pipeline is passed through the hinge rod.

[0025] Compared with the prior art, in the embodiment of the present invention, when the fresh-keeping module is used to realize controlled atmosphere fresh-keeping, the gas processing device and / or the fresh-keeping space are arranged on the door body, which can reduce the waste of storage space in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional schematic diagram of the refrigerator in the present utility model;

[0027] Figure 2 It is a three-dimensional schematic diagram of a preferred first embodiment of the utility model;

[0028] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;

[0029] Figure 4 yes Figure 2 A cross-sectional view of the middle fresh-keeping box and the gas processing device, wherein the valve assembly is in a connected state;

[0030] Figure 5 yes Figure 2 A cross-sectional view of the gas processing device, wherein the valve assembly is in a closed state;

[0031] Figure 6 yes Figure 2 Cross-sectional view of the middle crisper;

[0032] Figure 7 It is a perspective schematic diagram of a preferred second embodiment of the utility model;

[0033] Figure 8 yes Figure 7 Cross-sectional view at the middle BB;

[0034] Figure 9 It is a three-dimensional schematic diagram of a preferred third embodiment of the utility model;

[0035] Figure 10 It is a three-dimensional schematic diagram of a preferred fourth embodiment of the utility model;

[0036] Figure 11 It is a perspective schematic diagram of a fifth preferred embodiment of the present utility model;

[0037] Figure 12 yes Figure 11 Cross-sectional view at CC;

[0038] Figure 13 It is a three-dimensional schematic diagram of the connection between the box body and the door body in the utility model;

[0039] Figure 14 yes Figure 13 Cross-sectional view of the middle hinge box. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0041] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0042] Furthermore, it should be understood that although the terms first, second, etc. can be used to describe various elements or structures in this article, these described objects should not be restricted by the above terms. The above terms are only used to distinguish these description objects from each other. For example, the first fresh-keeping box can be called the second fresh-keeping box, and similarly, the second fresh-keeping box can also be called the first fresh-keeping box, and this does not deviate from the scope of protection of this application.

[0043] In the various drawings of the present invention, for the convenience of illustration, certain dimensions of structures or parts are exaggerated relative to other structures or parts, and therefore are only used to illustrate the basic structure of the subject matter of the present invention.

[0044] refer to Figures 1 to 6 As shown, a preferred first embodiment of the present invention provides a refrigerator equipped with a fresh-keeping module 30, so as to adjust the proportion of a specific gas (such as oxygen) in the fresh-keeping space (301, 302) to meet different fresh-keeping requirements, such as low-temperature and low-oxygen or low-temperature and high-oxygen fresh-keeping requirements.

[0045] refer to Figure 1 and Figure 2 Specifically, a refrigerator includes a housing 10, a door 20, and a fresh-keeping module 30. The door 20 is connected to the housing 10. In this embodiment, the housing 10 has a refrigeration compartment 101. The door 20 is pivotally connected to the housing 10 for opening or closing the refrigeration compartment 101. The refrigerator also includes a refrigeration system that provides cooling for the refrigeration compartment. The refrigeration system includes a compressor, a condenser, an evaporator, and the like connected by pipelines.

[0046] Coordinate Reference Figure 3 As shown, specifically, the fresh-keeping module 30 includes at least one fresh-keeping space (301, 302) and a gas processing device 303 whose airflow is connected to the fresh-keeping space (301, 302). The gas processing device 303 is configured to change the proportion of a specific gas in the fresh-keeping space (301, 302) through an electrochemical reaction. In this embodiment, the fresh-keeping module 30 uses the gas processing device 303 to adjust the proportion of the specific gas in the fresh-keeping space (301, 302), that is, by consuming or increasing the component of the specific gas in the gas processing device 303 through an electrochemical reaction, and by using the airflow connection between the gas processing device 303 and the fresh-keeping space (301, 302), thereby adjusting the proportion of the specific gas in the fresh-keeping space (301, 302).

[0047] Specifically, the fresh-keeping spaces (301, 302) and / or the gas treatment device 303 are arranged on the door body 20. In the embodiment, the fresh-keeping spaces (301, 302) and the gas treatment device 303 are both arranged on the door body 20, compared with the scheme that the fresh-keeping spaces (301, 302) or the gas treatment device 303 are arranged on the door body 20, the storage space in the cabinet is further saved, the gas pipeline between the gas treatment device 303 and the fresh-keeping spaces (301, 302) is shortened or omitted, the structure of the refrigerator is simplified, and the manufacturing cost is reduced.

[0048] Specifically, the door body 20 includes a door shell 202 forming an inter-door chamber 201 and a door panel 203 connected to the door shell 202 and covering the inter-door chamber 201. In the embodiment, the door panel 203 is pivotally connected to the door shell 202 and used for opening or closing the inter-door chamber 201. The door panel 203 can be transparent, so that a user can observe the state (for example, position, freshness state, etc.) of food materials in the inter-door chamber 201 without opening the door panel 203, and can quickly open the door panel 203 to take the food materials in the inter-door chamber 201, which is convenient to operate.

[0049] Further, the gas treatment device 303 is arranged in the inter-door chamber 201. In the embodiment, the gas treatment device 303 is located in the inter-door chamber 201 and can exchange heat with the inside of the inter-door chamber 201 to obtain cold energy, thereby avoiding temperature fluctuation in the fresh-keeping spaces (301, 302) when the gas treatment device 303 is in airflow communication with the fresh-keeping spaces (301, 302), and ensuring the stability of the temperature in the fresh-keeping spaces (301, 302).

[0050] In a different embodiment not shown, the gas treatment device 303 can also be arranged in the foaming layer of the door body 20, which can save the internal space of the inter-door chamber 201 and reduce the influence of external environmental factors on the gas treatment device 303.

[0051] Specifically, the fresh-keeping module 30 includes fresh-keeping boxes (304, 305) corresponding to the fresh-keeping spaces (301, 302), and each fresh-keeping space (301, 302) is formed in a corresponding fresh-keeping box (304, 305). In the embodiment, each fresh-keeping space (301, 302) is formed in a separate fresh-keeping box (304, 305), for example, the first fresh-keeping space 301 is formed in the first fresh-keeping box 304, and the second fresh-keeping space 302 is formed in the second fresh-keeping box 305. Each fresh-keeping space (301, 302) is defined by a separate and corresponding fresh-keeping box (304, 305), which can avoid gas flow between the fresh-keeping spaces (301, 302) and between the fresh-keeping spaces (301, 302) and the inter-door chamber 201, and ensure the stability of specific gas components in the fresh-keeping spaces (301, 302).

[0052] Specifically, the fresh-keeping box (304, 305) is arranged in the door compartment 201. In the embodiment, the fresh-keeping box (304, 305) is arranged in the door compartment 201, and can exchange heat with the inside of the door compartment 201, so as to cool the fresh-keeping space (301, 302) and meet the low-temperature requirement in fresh-keeping.

[0053] Specifically, the door shell 202 has an air inlet 2021 and an air return 2022 exposed to the door compartment 201, and the air inlet 2021 is located above the air return 2022. In the embodiment, the door compartment 201 adopts an air path design of “air inlet at the top and air return at the bottom”, so as to meet the cold air sinking, and make the whole door compartment 201 circulate to the cold air, and effectively cool the fresh-keeping box (304, 305) and the gas treatment device 303. The air inlet 2021 and the air return 2022 are located on the same side of the door compartment 201, for example, the hinge side of the door body 20.

[0054] Specifically, the door shell 202 further has an air duct 2023 communicating the air inlet 2021 and the air return 2022. The cold air in the air duct 2023 flows into the door compartment 201 through the air inlet 2021, exchanges heat with the fresh-keeping box (304, 305) in the door compartment 201, and then flows back to the air duct 2023 from the air return 2022, so as to realize the air circulation between the air duct 2023 and the door compartment 201, and complete the cold exchange between the air duct 2023 and the door compartment 201.

[0055] Further, the air duct 2023 is in air flow communication with the refrigeration compartment 101. In the embodiment, the door shell 202 further has a heat exchange opening 208 exposed to the air duct 2023, and the heat exchange opening 208 is exposed to the refrigeration compartment 101 when the door body 20 is closed. At this time, the door compartment 201 can realize air flow communication between the air duct 2023 and the refrigeration compartment 101 through the heat exchange opening 208, utilize the cold quantity in the refrigeration compartment 101 to supply cold to the door compartment 201, and cool the fresh-keeping space (301, 302).

[0056] Further, the refrigerator further comprises a fan arranged in the air duct 2023, and the fan can accelerate the gas flow in the air duct 2023, that is, accelerate the gas flow in the door compartment 201 and the gas flow between the door compartment 201 and the refrigeration compartment 101, and accelerate the cooling of the door compartment 201.

[0057] Specifically, the air duct 2023 includes an air inlet duct 20231 and a return air duct 20232 connected to the door compartment 201. The air inlet duct 20231 and the return air duct 20232 are respectively connected to the refrigeration compartment 101. In this embodiment, when the door 20 is closed, the fan operates to allow the cold air in the refrigeration compartment 101 to flow into the air duct 2023 through the air inlet duct 20231 and then into the door compartment 201 from the air inlet 2021. After heat exchange within the door compartment 201, the cold air flows back into the return air duct 20232 from the return air outlet 2022 and then back into the refrigeration compartment 101 from the air duct 2023. This reciprocating process achieves heat exchange between the refrigeration compartment 101 and the door compartment 201.

[0058] In some different embodiments (not shown), the air duct 2023 is connected to the interior of the refrigeration compartment 101 via a pipeline to obtain cooling. Alternatively, the air duct 2023 can also obtain cooling by being directly exposed to the interior of the refrigeration compartment 101. That is, the heat exchange port 208 is eliminated, and the cooling energy in the refrigeration compartment 101 is radiated into the air duct 2023 through direct cooling. Alternatively, a separate evaporator or air duct can be used to provide cooling to the air duct 2023.

[0059] Furthermore, the fresh-keeping module 30 includes a first fresh-keeping box 304 and at least one second fresh-keeping box 305. In this embodiment, the fresh-keeping module 30 may include one first fresh-keeping box 304 and one or more second fresh-keeping boxes 305. The fresh-keeping module 30 preferably includes one first fresh-keeping box 304 and two second fresh-keeping boxes 305. The proportion of a specific gas in the fresh-keeping space 301 of the first fresh-keeping box 304 is different from the proportion of a specific gas in the fresh-keeping space 302 of the second fresh-keeping box 305.

[0060] Exemplarily, the proportion of a specific gas (such as oxygen) in the fresh-keeping space 301 (such as the first fresh-keeping space) of the first fresh-keeping box 304 is greater than the proportion of a specific gas (such as oxygen) in the fresh-keeping space 302 (such as the second fresh-keeping space) of the second fresh-keeping box 305.

[0061] Coordinate Reference Figure 4 Specifically, the gas processing device 303 has a first ventilation port 3032 in airflow communication with the first fresh-keeping box 304, and a second ventilation port 3033 in airflow communication with the second fresh-keeping box 305. After the first fresh-keeping box 304 is in airflow communication with the first ventilation port 3032 of the gas processing device 303, the first ventilation port 3032 increases the specific gas component inside the first fresh-keeping box 304; after the second fresh-keeping box 305 is in airflow communication with the second ventilation port 3033 of the gas processing device 303, the second ventilation port 3033 consumes the specific gas component inside the second fresh-keeping box 305.

[0062] In some other different embodiments, the fresh-keeping module 30 may also include only the first fresh-keeping box 304 or the second fresh-keeping box 305. One of the first ventilation port 3032 and the second ventilation port 3033 is in airflow communication with the interior of the corresponding fresh-keeping box (304, 305), thereby consuming or increasing the specific gas components in the fresh-keeping box (304, 305), and the other of the first ventilation port 3032 and the second ventilation port 3033 is in airflow communication with the external environment.

[0063] Preferably, the specific gas composition in the first fresh-keeping box 304 is higher, that is, higher than the proportion of the specific gas in the air, such as a high-oxygen environment; the specific gas composition in the second fresh-keeping box 305 is lower, that is, lower than the proportion of the specific gas in the air, such as a low-oxygen environment.

[0064] Furthermore, the first fresh-keeping box 304 and the second fresh-keeping box 305 are located on the same side of the gas processing device 303. Figure 2 The first fresh-keeping box 304 and the second fresh-keeping box 305 are both located on the same side of the gas processing device 303, making full use of the space on one side of the gas processing device 303 and reasonably utilizing the internal space of the door chamber 201 to avoid wasting space.

[0065] Furthermore, the gas processing device 303 includes a cathode and an anode spaced apart. In this embodiment, the cathode is connected to the negative electrode of a power source and performs a reduction reaction. The anode is connected to the positive electrode of a power source and performs an oxidation reaction. The gap between the cathode and anode forms a reaction space for holding an electrolyte. The reaction space can hold an alkaline electrolyte, such as 0.1 to 8 mol / L NaOH or KOH, and its concentration can be adjusted according to actual needs.

[0066] Specifically, the cathode is configured to consume oxygen through an electrochemical reaction, and the anode is configured to provide a reactant to the cathode and generate oxygen through an electrochemical reaction. In this embodiment, the specific gas is preferably oxygen. Thus, the oxygen in the fresh-keeping space (301, 302) can undergo a reduction reaction at the cathode, namely: O2+2H2O+4e - →4OH - OH generated at the cathode - An oxidation reaction can occur at the anode, and oxygen is generated and transported to the fresh-keeping space (301, 302), namely: 4OH - →O2+2H2O+4e - The anode utilizes OH - While the electrochemical reaction is taking place, reactants such as electrons e are also provided to the cathode. - .

[0067] Specifically, the first ventilation port 3032 is connected to the anode to output oxygen generated by the anode, and the second ventilation port 3033 is connected to the cathode to consume oxygen from the second ventilation port 3033 .

[0068] For example, when the fresh-keeping module 30 includes only one fresh-keeping box (304, 305), that is, when the fresh-keeping module 30 has only one fresh-keeping space (301, 302), the cathode can be used to consume oxygen in the fresh-keeping space, or the anode can be used to provide oxygen to the fresh-keeping space. When the fresh-keeping module 30 includes a first fresh-keeping box 304 and a second fresh-keeping box 305, the anode can be used to provide oxygen to the first fresh-keeping box 304, while the cathode can be used to consume oxygen in the second fresh-keeping box 305.

[0069] In some other different embodiments, the gas processing device 303 can also adopt other types of electrochemical reactions and process other types of specific gas components, such as electrochemical reactions for producing or consuming carbon dioxide, electrochemical reactions for producing or consuming nitrogen, electrochemical reactions for producing or consuming ethylene, etc.

[0070] Thus, as the first ventilation port 3032 continuously increases the oxygen content in the first fresh-keeping box 304, a high-oxygen environment is formed in the first fresh-keeping box 304, which can preserve cold meat and fresh-cut fruits and vegetables. As the second ventilation port 3033 continuously consumes the oxygen content in the second fresh-keeping box 305, a low-oxygen environment is formed in the second fresh-keeping box 305, which can extend the shelf life of fruits and vegetables.

[0071] Continue to coordinate with reference Figure 4 As shown, further, the gas processing device 303 has a reaction space 3031, and the fresh-keeping module 30 further includes a docking structure 306. After the fresh-keeping box (304, 305) is docked with the gas processing device 303, the docking structure 306 connects the fresh-keeping space (301, 302) with the reaction space 3031. In this embodiment, after the fresh-keeping box (304, 305) is docked with the gas processing device 303, the docking structure 306 is used to achieve airflow communication between the fresh-keeping space (301, 302) of the fresh-keeping box (304, 305) and the reaction space 3034 of the gas processing device 303, thereby increasing the component of the specific gas (i.e., oxygen) in the first fresh-keeping box 304 or consuming the component of the specific gas (i.e., oxygen) in the second fresh-keeping box 305.

[0072] Specifically, the docking structure 306 includes a valve assembly 3061 arranged on the gas processing device 303 and a trigger structure 3062 arranged on the fresh-keeping box (304, 305). The valve assembly 3061 has a connected state in which it abuts against the trigger structure 3062 and a closed state in which it is disengaged from the trigger structure 3062. In the connected state, a docking space 3063 is formed between the trigger structure 3062 and the valve assembly 3061, and the airflow of the reaction space 3031 is connected to the docking space 3063.

[0073] In other embodiments not shown, the docking structure 306 can also be other forms, for example, the fresh-keeping box (304, 305) and the gas treatment device 303 are connected by threaded docking of a threaded tube and a threaded hole to achieve airflow communication; or, the fresh-keeping box (304, 305) and the gas treatment device 303 are connected by interference fit to achieve airflow communication, as long as the airflow communication is achieved after the fresh-keeping box (304, 305) and the gas treatment device 303 are docked.

[0074] Furthermore, in this embodiment, after the fresh-keeping box (304, 305) is installed on the gas processing device 303, the trigger structure 3062 and the valve assembly 3061 cooperate with each other to achieve airflow communication, that is, when in the connected state, the reaction space 3031 and the docking space 3063 are connected to each other, thereby communicating with the fresh-keeping space (301, 302) through the docking space 3063, thereby achieving airflow communication.

[0075] Furthermore, the fresh-keeping module 30 also includes a manual switch 307 provided on the gas processing device 303, i.e., a power switch for controlling the start and stop of the gas processing device 303, such as a touch or press switch, so that the user can start and stop the gas processing operation according to the user's needs. An induction switch can also be provided on the gas processing device 303, i.e., after the fresh-keeping box (304, 305) is docked with the gas processing device 303 (for example, after the trigger structure 3062 and the valve assembly 3061 cooperate with each other), the gas processing device 303 can begin to operate.

[0076] Coordinate Reference Figure 5 As shown, the gas processing device 303 further has ventilation ports (3032, 3033) exposing the reaction space 3031. The valve assembly 3061 includes a movable rod 30611 that matches the ventilation ports (3032, 3033), a trigger block 30612 connected to the movable rod 30611, and an elastic member 30613 and a sealing ring 30614 sleeved on the movable rod 30611. In this embodiment, the trigger block 30612 and the sealing ring 30614 are disposed at opposite ends of the movable rod 30611, that is, the trigger block 30612 is located outside the reaction space 3031, and the sealing ring 30614 is located inside the reaction space 3031.

[0077] Specifically, in the closed state, the elastic member 30613 abuts between the trigger block 30612 and the gas processing device 303, causing the sealing ring 30614 to block the ventilation ports (3032, 3033). In this embodiment, in the closed state, the elastic force generated by the elastic deformation of the elastic member 30613 drives the trigger block 30612 away from the gas processing device 303, thereby driving the sealing ring 30614 toward the ventilation ports (3032, 3033), thereby blocking the ventilation ports (3032, 3033) and preventing the gas in the reaction space 3031 from communicating with the outside through the ventilation ports (3032, 3033). Thus, after the fresh-keeping box (304, 305) is separated from the gas processing device 303, the valve assembly 3061 automatically blocks the ventilation ports (3032, 3033).

[0078] Coordinate Reference Figure 6 As shown, the fresh-keeping box 305 further comprises a docking port 3051 exposing the fresh-keeping space 302, and the fresh-keeping module 30 further comprises a sealing plug 308 that cooperates with the docking port 3051. In this embodiment, since the oxygen processing device 303 can consume the oxygen within the second fresh-keeping box 305, causing its internal pressure to be lower than atmospheric pressure, by providing the sealing plug 308 at the docking port 3051 of the second fresh-keeping box 305, atmospheric pressure acts on the sealing plug 308 to seal the second fresh-keeping box 305, which is separated from the gas processing device 303.

[0079] Specifically, the sealing plug 308 has a limiting portion 3081 located in the fresh-keeping space 302, a blocking portion 3082 located outside the fresh-keeping space 302, and a movable portion 3083 connecting the limiting portion 3081 and the blocking portion 3082. When in the connected state, the limiting portion 3081 abuts against the fresh-keeping box 305, and the blocking portion 3082 is disengaged from the fresh-keeping box 305, so that the docking port 3051 connects the fresh-keeping space 302 and the docking space 3063.

[0080] In this embodiment, when in the connected state, since the reaction space 3031 is connected to the docking space 3063, when the specific gas component in the reaction space 3031 decreases, the pressure in the docking space 3063 will decrease together with the reaction space 3031, until the pressure in the fresh-keeping space 302 is greater than the docking space 3063, the sealing plug 308 is driven to move, that is, the limiting portion 3081 is driven to abut against the second fresh-keeping box 305, and the blocking portion 3082 is driven to disengage from the fresh-keeping box 305, so that the docking port 3051 connects the fresh-keeping space 302 and the docking space 3063, and then the fresh-keeping space 302 and the reaction space 3031 are connected in airflow.

[0081] Moreover, when the second preservation box 305 is removed from the gas processing device 303, because the pressure in the second preservation box 305 is less than the external environment, the sealing plug 308 is driven to move by the atmospheric pressure, i.e. the limiting part 3081 is driven to disengage from the second preservation box 305, and the blocking part 3082 is driven to abut against the second preservation box 305, so as to block the abutting interface 3051 by the blocking part 3082, and avoid the internal part of the second preservation box 305 from communicating with the external environment. At this time, the second preservation box 305 can maintain the internal specific gas composition (e.g. low-oxygen environment) without depending on the gas processing device 303, and can be stored in any space of the refrigerator or taken out of the refrigerator.

[0082] In an embodiment not shown, the sealing plug can also be arranged on the first preservation box 304, and the limiting part is arranged outside the preservation space, and the blocking part is arranged inside the preservation space.

[0083] Specifically, the valve assembly 3061 further comprises a valve seat 30615 in sliding cooperation with the trigger block 30612, and the trigger structure 3062 comprises a trigger cover 30621 matched with the valve seat 30615 and a trigger boss 30622 connected with the trigger cover 30621. In this embodiment, the sliding cooperation between the trigger block 30612 and the valve seat 30615 can ensure the axial movement of the movable rod 30611 along the air exchange port (3032, 3033), i.e. ensure the accurate movement of the trigger block 30612 and the sealing ring 30614. The trigger cover 30621 is recessed towards the preservation space (301, 302), the trigger boss 30622 protrudes towards the inner side of the trigger cover 30621, and the abutting interface 3051 is formed on the trigger cover 30621. The abutting space 3063 is formed on the inner side of the trigger cover 30621.

[0084] Further, in the communication state, the trigger cover 30621 covers the valve seat 30615, and the trigger boss 30622 abuts against the trigger block 30612. In this embodiment, the valve assembly 3061 further comprises a sealing ring 30616 sleeved on the valve seat 30615. In the communication state, the trigger cover 30621 abuts against the sealing ring 30616, so as to ensure the sealing of the abutting space 3063. The preservation box (304, 305) is positioned and installed with the gas processing device 303 by the matched trigger cover 30621 and valve seat 30615, and after installation, the edge of the trigger cover 30621 abuts against the sealing ring 30616, so as to form a closed abutting space 3063. During the installation of the preservation box (304, 305), the trigger boss 30622 drives the trigger block 30612 to move, i.e. move along the sliding cooperation direction between the trigger block 30612 and the valve seat 30615, so as to drive the sealing ring 30614 to disengage from the air exchange port (3032, 3033), and realize the communication between the reaction space 3031 and the abutting space 3063 by the air exchange port (3032, 3033).

[0085] refer to Figures 7 to 8 As shown, a second preferred embodiment of the present invention provides a refrigerator. Similar to the first embodiment, the fresh-keeping space (301, 302) and the gas processing device 303 are both provided on the door body 20. The difference is that the fresh-keeping space (301, 302) of the refrigerator is formed in the door compartment 201, making full use of the internal space of the door compartment 201 and increasing the volume of the fresh-keeping space (301, 302). In this embodiment, the same reference numerals represent the same components with similar functions and are not further described.

[0086] Specifically, the fresh-keeping module 30 includes a first fresh-keeping space 301 and a second fresh-keeping space 302. The first fresh-keeping space 301 is located in the door chamber 201 and on one side of the gas processing device 303. The second fresh-keeping space 302 is located in the door chamber 201 and on the opposite side of the gas processing device 303.

[0087] In this embodiment, the first fresh-keeping space 301 and the second fresh-keeping space 302 are separated from each other, that is, after the door panel 203 is closed, no gas can flow between the first fresh-keeping space 301 and the second fresh-keeping space 302. The door compartment 201 is separated into the first fresh-keeping space 301 and the second fresh-keeping space 302, which are arranged opposite each other, by the gas processing device 303. This fully utilizes the internal space of the door body 20 for the arrangement of the fresh-keeping module 30, improves the space utilization of the door compartment 201, and increases the volume of the fresh-keeping spaces (301, 302). The proportion of a specific gas in the first fresh-keeping space 301 is different from the proportion of a specific gas in the second fresh-keeping space 302.

[0088] Exemplarily, the proportion of the specific gas (eg, oxygen) in the first fresh-keeping space 301 is greater than the proportion of the specific gas (eg, oxygen) in the second fresh-keeping space 302 .

[0089] Preferably, two fresh-keeping spaces (301, 302) are opened using a single door panel 203. Of course, the door body 20 can also be provided with two door panels corresponding to the number of fresh-keeping spaces (301, 302), and the two door panels respectively open two fresh-keeping spaces.

[0090] Specifically, the gas processing device 303 is installed on the door frame. When the door panel 203 is closed, the door seal 204 on the door panel 203 can be used to separate the two fresh-keeping spaces (301, 302) to prevent cross-flow. The two fresh-keeping spaces (301, 302) are also provided with shelves 205, and the shelves 205 are provided with grille holes 206 to facilitate the placement of items while ensuring the circulation of gas within each fresh-keeping space (301, 302). The door compartment 201 can obtain cooling energy by exchanging heat with the refrigeration compartment 101 through the compartment backplate, thereby preventing gas flow between the door compartment 201 and the refrigeration compartment 101.

[0091] Furthermore, the gas processing device 303 has a first ventilation port 3032 and at least one second ventilation port 3033. The first ventilation port 3032 is exposed to the first fresh-keeping space 301, and the second ventilation port 3033 is exposed to the second fresh-keeping space 302. In this embodiment, the first ventilation port 3032 and the second ventilation port 3033 are both exposed and connected to the corresponding fresh-keeping spaces (301, 302), eliminating gas pipelines, simplifying the structure, improving the space utilization of the door body 20, and increasing the volume of the fresh-keeping spaces (301, 302).

[0092] Preferably, the gas processing device 303 has one first ventilation port 3032 and two second ventilation ports 3033. The mixed gas in the second fresh-keeping space 302 flows into the gas processing device 303 through one of the second ventilation ports 3033 and undergoes an electrochemical reaction, reducing the specific gas component. The mixed gas then flows back into the second fresh-keeping space 302 through the other second ventilation port 3033, ultimately reducing the specific gas component in the second fresh-keeping space 302. Alternatively, the mixed gas in the second fresh-keeping space 302 enters the gas processing device 303 through both second ventilation ports 3033 simultaneously, thereby consuming the specific gas in the second fresh-keeping space 302.

[0093] refer to Figure 9 As shown, a preferred third embodiment of the present invention provides a refrigerator, which is different from the first embodiment in that the gas processing device 303 of the refrigerator is arranged on the door body 20, and the fresh-keeping space (301, 302) is arranged on the cabinet 10. In this embodiment, the same reference numerals represent the same components with similar functions and are not further described.

[0094] Specifically, the housing 10 has a refrigeration compartment 101, and the door 20 covers at least a portion of the refrigeration compartment 101. In this embodiment, when the door 20 completely covers the refrigeration compartment 101, the refrigerator can be a single-door refrigerator. When the door 20 partially covers the refrigeration compartment 101, the refrigerator can be a double-door refrigerator.

[0095] Furthermore, the fresh-keeping module 30 includes a fresh-keeping box (304, 305) forming a fresh-keeping space (301, 302), one of the gas processing device 303 and the fresh-keeping box (304, 305) is arranged in the refrigeration compartment 101, and the other of the gas processing device 303 and the fresh-keeping box (304, 305) is arranged on the side of the door body 20 facing the refrigeration compartment 101.

[0096] In this embodiment, the fresh-keeping box (304, 305) is arranged in the refrigeration compartment 101, and the gas processing device 303 is arranged on the side of the door body 20 facing the refrigeration compartment 101. The gas processing device 303 is preferably arranged in the upper half of the door body 20. For users who are not particularly tall, this part of the door body 20 is less used. After the door body 20 is opened, a layer of condensed water adheres to the bottle holder, and it is difficult to see the gas processing device 303 located there through the bottle holder from a lower viewing angle. The gas processing device 303 can also be placed in other less used locations, or other spaces that are inconvenient for users to use, without affecting the user's experience of using the refrigerator, and it is also beneficial to the spatial layout inside the refrigerator.

[0097] refer to Figure 10 As shown, a preferred fourth embodiment of the present invention provides a refrigerator, which is different from the third embodiment in that the fresh-keeping space (301, 302) of the refrigerator is provided on the door body 20, and the gas processing device 303 is provided on the cabinet 10. In this embodiment, the same reference numerals represent the same components with similar functions and are not further described.

[0098] Specifically, the gas processing device 303 is arranged in the refrigeration compartment 101, and the fresh-keeping box (304, 305) is arranged on the side of the door body 20 facing the refrigeration compartment 101. Preferably, the fresh-keeping box (304, 305) is arranged in the lower half of the door body 20, so that the user can take it out after opening the door body 20.

[0099] refer to Figure 11 and Figure 12 As shown, a preferred fourth embodiment of the present invention provides a refrigerator. Similar to the third embodiment, the fresh-keeping space (301, 302) of the refrigerator is provided on the door body 20, and the gas processing device 303 is provided on the cabinet 10. Unlike the third embodiment, the user can directly access the fresh-keeping box (304, 305) from the outside of the door body. In this embodiment, the same reference numerals represent the same components with similar functions and are not further described.

[0100] Specifically, the cabinet 10 has a refrigeration compartment 101. The door 20 covers at least a portion of the refrigeration compartment 101 and includes a door shell 202 that defines a storage cavity 207, and a door panel 203 that connects to the door shell 202 and covers the side of the storage cavity 207 facing away from the refrigeration compartment 101. In this embodiment, the storage cavity 201 is formed in the lower middle portion of the door shell 202 to facilitate user access to items within the storage cavity 207.

[0101] Furthermore, the fresh-keeping module 30 includes fresh-keeping boxes (304, 305) forming fresh-keeping spaces (301, 302), the gas processing device 303 is disposed in the refrigeration compartment 101, and the fresh-keeping boxes (304, 305) are disposed in the storage cavity 207. In this embodiment, by disposing the fresh-keeping boxes (304, 305) in the storage cavity 207, a user can directly take the fresh-keeping boxes in the storage cavity 207 from the outside of the door body by opening the door panel 203, without having to open the door body 20 for operation.

[0102] Specifically, the storage cavity 207 and the refrigeration compartment 101 can be connected by airflow through the heat exchange port 208. The back plate of the storage cavity 207 can also exchange heat with the refrigeration compartment 101 to obtain cooling capacity.

[0103] Coordinate Reference Figure 13 and 14 As shown, specifically, the fresh-keeping module 30 further includes a gas pipeline 309 for communicating airflow between the gas processing device 303 and the fresh-keeping box (304, 305). In this embodiment, when the solution of "one of the gas processing device 303 and the fresh-keeping box (304, 305) is disposed on the box body 10, and the other of the gas processing device 303 and the fresh-keeping box (304, 305) is disposed on the door body 20" is adopted, the gas pipeline 309 can be used to achieve airflow communication between the gas processing device 303 and the fresh-keeping box (304, 305).

[0104] Furthermore, the refrigerator also includes a hinge box 40 connected to the cabinet 10 and a hinge rod 50 connected to the door 20 and at least partially extending through the hinge box 40. A portion of the gas pipeline 309 extends through the hinge rod 50. In this embodiment, the hinge rod 50 prevents the gas pipeline 309 from being exposed. The hinge rod 50 moves relative to the cabinet 10 and within the hinge box 40 as the door 20 opens or closes. Compared to a solution in which the gas pipeline 309 extends directly through the hinge box 40, wear on the gas pipeline 309 is reduced.

[0105] Specifically, the hinge link 50 is inserted into the door body using a rotating shaft, thereby achieving both fixation and relative rotation. The gas pipeline 309 can be integrally formed, that is, the gas pipeline 309 extends from the housing 10, passes through the hinge link 50, and directly extends into the door body 20. The gas pipeline 309 can also be provided in a split manner, that is, a portion of the gas pipeline 309 extends from the housing 10, passes through the hinge link 50, and docks with another portion of the gas pipeline 309 in the door body 20, which is pre-buried in the door body 20.

[0106] Specifically, such as Figure 14 b. A bending space 401 is provided within the hinge box 40. This prevents the gas line 309 from becoming entangled in the hinge box 40 and causing damage to the gas line 309 due to irregular movement when the door 20 is closed. Furthermore, by providing a limit post 402 within the hinge box 40, the gas line 309 can be limited in its movement, allowing it to bend more effectively within the hinge box 40, facilitating the opening and closing of the door 20.

[0107] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0108] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: Box (10); A door body (20), wherein the door body (20) is connected to the box body (10); A fresh-keeping module (30), comprising at least one fresh-keeping space (301, 302) and a gas processing device (303) whose airflow is connected to the fresh-keeping space (301, 302), wherein the gas processing device (303) is configured to change the proportion of a specific gas in the fresh-keeping space (301, 302) through an electrochemical reaction; Wherein, the fresh-keeping space (301, 302) and / or the gas processing device (303) are arranged on the door body (20).

2. The refrigerator according to claim 1, wherein The door body (20) comprises a door shell (202) forming a door chamber (201) and a door panel (203) connected to the door shell (202) and covering the door chamber (201), and the gas processing device (303) is arranged in the door chamber (201).

3. The refrigerator according to claim 2, wherein: The fresh-keeping module (30) includes fresh-keeping boxes (304, 305) corresponding to the fresh-keeping spaces (301, 302). Each fresh-keeping space (301, 302) is formed in a corresponding fresh-keeping box (304, 305). The fresh-keeping boxes (304, 305) are arranged in the door compartment (201).

4. The refrigerator according to claim 2, wherein The box body (10) has a refrigeration compartment (101), and the door shell (202) has an air inlet duct (20231) and an air return duct (20232) connected to the door compartment (201), and the air inlet duct (20231) and the air return duct (20232) are respectively connected to the refrigeration compartment (101).

5. The refrigerator according to claim 3, wherein The fresh-keeping module (30) comprises a first fresh-keeping box (304) and at least one second fresh-keeping box (305); the proportion of a specific gas in the fresh-keeping space (301) of the first fresh-keeping box (304) is greater than the proportion of a specific gas in the fresh-keeping space (302) of the second fresh-keeping box (305); and the first fresh-keeping box (304) and the second fresh-keeping box (305) are located on the same side of a gas processing device (303).

6. The refrigerator according to claim 3, wherein The gas processing device (303) has a reaction space (3031), and the fresh-keeping module (30) further includes a docking structure (306). After the fresh-keeping box (304, 305) is docked with the gas processing device (303), the docking structure (306) connects the fresh-keeping space (301, 302) and the reaction space (3031) through airflow.

7. The refrigerator according to claim 6, wherein The docking structure (306) includes a valve assembly (3061) arranged on the gas processing device (303) and a trigger structure (3062) arranged on the fresh-keeping box (304, 305). The valve assembly (3061) has a connected state in which it abuts against the trigger structure (3062) and a closed state in which it is out of abutment with the trigger structure (3062). In the connected state, a docking space (3063) is formed between the trigger structure (3062) and the valve assembly (3061), and the airflow of the reaction space (3031) is connected to the docking space (3063).

8. The refrigerator according to claim 7, wherein: The gas processing device (303) has ventilation ports (3032, 3033) exposing the reaction space (3031); the valve assembly (3061) includes a movable rod (30611) matching the ventilation ports (3032, 3033), a trigger block (30612) connected to the movable rod (30611), and an elastic member (30613) and a sealing ring (30614) sleeved on the movable rod (30611); in the closed state, the elastic member (30613) abuts between the trigger block (30612) and the gas processing device (303), so that the sealing ring (30614) blocks the ventilation ports (3032, 3033).

9. The refrigerator according to claim 7, wherein: The fresh-keeping box (305) has a docking port (3051) exposing the fresh-keeping space (302), and the fresh-keeping module (30) also includes a sealing plug (308) that cooperates with the docking port (3051). The sealing plug (308) has a limiting portion (3081) located in the fresh-keeping space (302), a blocking portion (3082) located outside the fresh-keeping space (302), and a movable portion (3083) connecting the limiting portion (3081) and the blocking portion (3082). In the connected state, the limiting portion (3081) abuts against the fresh-keeping box (305), and the blocking portion (3082) is disengaged from the abutment with the fresh-keeping box (305), so that the docking port (3051) connects the fresh-keeping space (302) and the docking space (3063).

10. The refrigerator according to claim 8, wherein The valve assembly (3061) further includes a valve seat (30615) that slidably cooperates with the trigger block (30612); the trigger structure (3062) includes a trigger cover (30621) that matches the valve seat (30615) and a trigger boss (30622) connected to the trigger cover (30621); in the connected state, the trigger cover (30621) covers the valve seat (30615), and the trigger boss (30622) abuts against the trigger block (30612).

11. The refrigerator according to claim 1, wherein The gas processing device (303) comprises a cathode and an anode which are spaced apart from each other, wherein the cathode is configured to consume oxygen through an electrochemical reaction, and the anode is configured to provide a reactant to the cathode and generate oxygen through an electrochemical reaction.

12. The refrigerator according to claim 2, wherein: The fresh-keeping module (30) comprises a first fresh-keeping space (301) and a second fresh-keeping space (302) spaced apart from each other, wherein the first fresh-keeping space (301) is located in the door compartment (201) and on one side of the gas processing device (303), and the second fresh-keeping space (302) is located in the door compartment (201) and on the opposite side of the gas processing device (303).

13. The refrigerator according to claim 12, wherein: The proportion of the specific gas in the first fresh-keeping space (301) is greater than the proportion of the specific gas in the second fresh-keeping space (302), and the gas processing device (303) has a first ventilation port (3032) and at least one second ventilation port (3033), the first ventilation port (3032) is exposed to the first fresh-keeping space (301), and the second ventilation port (3033) is exposed to the second fresh-keeping space (302).

14. The refrigerator according to claim 1, wherein The box body (10) has a refrigeration compartment (101), the door body (20) covers at least a portion of the refrigeration compartment (101), the fresh-keeping module (30) includes a fresh-keeping box (304, 305), one of the gas processing device (303) and the fresh-keeping box (304, 305) is arranged in the refrigeration compartment (101), and the other of the gas processing device (303) and the fresh-keeping box (304, 305) is arranged on a side of the door body (20) facing the refrigeration compartment (101).

15. The refrigerator according to claim 1, wherein The box body (10) has a refrigeration compartment (101), the door body (20) covers at least a portion of the refrigeration compartment (101), and includes a door shell (202) forming a storage cavity (207) and a door panel (203) connected to the door shell (202) and covering the storage cavity (207) on a side facing away from the refrigeration compartment (101), the fresh-keeping module (30) includes a fresh-keeping box (304, 305), the gas processing device (303) is arranged in the refrigeration compartment (101), and the fresh-keeping box (304, 305) is arranged in the storage cavity (207).

16. The refrigerator according to claim 14 or 15, characterized in that: The fresh-keeping module (30) further includes a gas pipeline (309) for connecting the gas processing device (303) and the fresh-keeping box (304, 305) via an airflow. The refrigerator further includes a hinge box (40) connected to the cabinet (10) and a hinge connecting rod (50) connected to the door (20) and at least partially extending through the hinge box (40). A portion of the gas pipeline (309) extends through the hinge connecting rod (50).

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