Air conditioning device and refrigerating and freezing device

Abstract

The application provides a gas adjusting device and a refrigerating and freezing device, wherein the gas adjusting device comprises a reaction assembly and a liquid supplement container. The reaction assembly comprises a bin body and an electrolysis assembly, the electrolysis assembly is assembled on the bin body, a reaction space is formed in the bin body or surrounded by the bin body and the electrolysis assembly, and an electrochemical reaction is carried out in the reaction space to consume oxygen in a storage space outside the bin body. The liquid supplement container forms a liquid supplement space communicated with the reaction space, is used for storing and supplementing electrolyte to the reaction space, and further forms a transparent window arranged between the inside and the outside of the liquid supplement space, and is used for visually observing the electrolyte stored in the liquid supplement space from the outside of the liquid supplement space. The gas adjusting device and the refrigerating and freezing device provided by the application can solve the problem that the electrolyte is insufficient in the existing gas adjusting device, and improve the user experience.

Description

Technical Field

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

[0002] The controlled atmosphere (CA) system in a refrigerator uses an electrochemical reaction to consume oxygen in the storage space, thereby reducing the oxygen concentration and achieving oxygen-controlled preservation. This electrochemical reaction requires cathode and anode plates in an electrolyte solution. A reduction reaction occurs at the cathode, absorbing oxygen, while an oxidation reaction occurs at the anode, producing oxygen. The generated oxygen forms numerous tiny bubbles in the electrolyte. These bubbles rise to the surface and burst, forming very small electrolyte particles that remain suspended above the electrolyte. The continuously generated oxygen carries away some of these electrolyte particles, which are then discharged from the CA system's outlet. As the electrolyte level decreases with use, the cathode and anode plates may become exposed, affecting the CA system's efficiency. When the electrolyte level drops to a certain point, the electrolytic components may become exposed, reducing electrolytic efficiency and potentially preventing the electrochemical reaction from occurring. This reduces the oxygen removal and preservation effect, shortening the food's shelf life and resulting in a poor user experience. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a controlled atmosphere device and a refrigeration and freezing device that overcome or at least partially solve the above problems, aiming to solve the problem of insufficient electrolyte in existing controlled atmosphere devices and achieve the effect of improving user experience.

[0004] Specifically, the present invention provides a controlled atmosphere device, comprising:

[0005] A reaction assembly, comprising a chamber and an electrolysis assembly, wherein the electrolysis assembly is mounted on the chamber, and a reaction space is formed within the chamber or the chamber and the electrolysis assembly together, for carrying out an electrochemical reaction within the reaction space to consume oxygen in the storage space outside the chamber.

[0006] A replenishment container forms a replenishment space communicating with the reaction space for storing and replenishing electrolyte to the reaction space; and the replenishment container also forms a transparent window spaced between the inner and outer sides of the replenishment space for making the electrolyte stored in the replenishment space visible from the outside of the replenishment space.

[0007] In the modified atmosphere device of the present invention, the replenishment container can replenish electrolyte to the reaction space, and the user can understand the electrolyte storage status in the replenishment space through the transparent window on the replenishment container. When the electrolyte in the replenishment space is low, electrolyte can be manually added, which can solve the problem of insufficient electrolyte in existing modified atmosphere devices and achieve the effect of improving user experience.

[0008] Optionally, the transparent window forms at least one sidewall of the replenishment container; and / or

[0009] A window communicating between the inside and outside of the replenishment container is formed on at least one side wall of the replenishment container, and a transparent window is fitted onto the window.

[0010] Optionally, the replenishment container further forms a replenishment port communicating with the replenishment space, and the replenishment space is communicating with the reaction space at least through the replenishment port.

[0011] Optionally, a first liquid level detection component is provided on the replenishment container for detecting the liquid level height of the electrolyte in the replenishment space; and / or

[0012] A second liquid level detection component is installed on the chamber body to detect the liquid level height of the electrolyte in the reaction space.

[0013] Optionally, the replenishment container is located above the reaction assembly, and a first liquid level sensor is disposed inside the replenishment container at the bottom of the replenishment space. The first liquid level sensor is configured to generate a response signal when the liquid level of the electrolyte in the replenishment space is not higher than the first liquid level sensor.

[0014] Optionally, the replenishment container is located inside the chamber and above the electrolysis assembly. A first liquid level sensor is provided inside the replenishment container at the bottom of the replenishment space. The first liquid level sensor is configured to generate a response signal when the liquid level of the electrolyte in the replenishment space is not higher than the first liquid level sensor.

[0015] Optionally, a connecting pipe is connected between the replenishment container and the chamber, with the inlet end of the connecting pipe connected to a position in the replenishment space above the reaction space, and the outlet end of the connecting pipe connected to the top of the reaction space.

[0016] Optionally, the chamber is located below the replenishment container, and a first opening is formed at the top of the chamber for the electrolyte in the replenishment space to enter the reaction space; and

[0017] The reaction assembly also includes a float that floats or suspends on the electrolyte within the reaction space, and is used to control the opening and closing of the first opening by floating or sinking within the reaction space.

[0018] Optionally, the replenishment container is located within the chamber and above the electrolysis assembly, and the bottom of the replenishment container forms a first opening for the electrolyte in the replenishment space to flow into the reaction space; and

[0019] The reaction assembly also includes a float that floats or suspends on the electrolyte within the reaction space and is located below the first opening, for use in controlling the opening and closing of the first opening by floating or sinking within the reaction space.

[0020] Optionally, the chamber also forms an air outlet located at the top of the reaction space, and the air outlet is connected to the liquid replenishment space at least through the reaction space.

[0021] Optionally, the chamber further forms a gas scrubbing space connected to the top of the reaction space and a gas outlet connected to the top of the gas scrubbing space; wherein the gas scrubbing space is configured to store the electrolyte at least at the bottom to separate electrolytes entrained in the gas discharged from the reaction space.

[0022] Optionally, the replenishment space and the reaction space are directly connected or indirectly connected at least through the gas washing space, and the replenishment space and the gas washing space are spaced apart to form a communicating vessel structure.

[0023] Optionally, the top of the replenishment space is higher than the bottom of the scrubbing space, so as to connect a horizontally arranged connecting channel between the replenishment space and the scrubbing space, forming a communicating vessel structure; and

[0024] The replenishment container is equipped with a first liquid level detection component disposed adjacent to the connecting flow channel, which is used to generate a response signal when the liquid level of the electrolyte in the replenishment space is not higher than the connecting flow channel.

[0025] Optionally, the replenishment space is connected to the reaction space or the gas washing space via at least a horizontally arranged connecting channel, and a first one-way mechanism is provided in the connecting channel to prevent the electrolyte from flowing back from the reaction space or the gas washing space to the replenishment space.

[0026] Optionally, the first unidirectional mechanism includes a first pendulum, the top of which is hinged to the upper side of the connecting channel, and the bottom of which is inclined toward the end of the connecting channel away from the replenishment space, for pitching and swinging under the impact force of the electrolyte and the weight of the first pendulum to cut off and open the connecting channel.

[0027] Optionally, the gas washing space and the reaction space are connected through a second opening, and the second opening is provided with a second one-way mechanism for opening when the pressure in the reaction space is greater than the pressure in the gas washing space.

[0028] Optionally, the second one-way mechanism includes a second swing blade, the hinged end of which is connected to one side edge of the upper end of the second opening, and the free end of which overlaps the opposite side edge of the upper end of the second opening.

[0029] Optionally, at least one side of the replenishment container and at least one side of the chamber wall partially or completely overlap, so that the replenishment container and the reaction assembly are connected together through the overlapping portion.

[0030] Optionally, the top of the replenishment space is not lower than the top of the reaction space, and the replenishment space and the reaction space are spaced apart to form a communicating vessel structure.

[0031] Optionally, the replenishment container includes a main body and a buffer portion, the replenishment space is disposed within the main body, the buffer portion is connected to the top of the main body and offset to one side of the main body, and a replenishment port is formed at the top of the buffer portion.

[0032] The present invention also provides a refrigeration and freezing apparatus, comprising:

[0033] A storage compartment, wherein the storage compartment forms a storage space for storing items and a storage opening for retrieving items;

[0034] The controlled atmosphere device described in any of the preceding claims is disposed on the wall of the storage compartment adjacent to the storage opening and / or on the wall of the storage compartment opposite to the storage opening.

[0035] In the refrigeration and freezing apparatus of this invention, the electrolyte replenishment container of the controlled atmosphere device can replenish the reaction space. Furthermore, the user can view the electrolyte level in the replenishment space through a transparent window on the container. When the electrolyte level in the replenishment space is low, electrolyte can be manually added, solving the problem of insufficient electrolyte in existing controlled atmosphere devices and improving the user experience. Moreover, the controlled atmosphere device consumes oxygen in the storage space, creating an oxygen-deficient atmosphere. This reduces the aerobic respiration intensity of fruits, vegetables, and other food items in the storage space, thereby enabling the storage space to preserve freshness and extending the shelf life of the food.

[0036] 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

[0037] 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:

[0038] Figure 1This is a schematic structural diagram of a modified atmosphere device according to an embodiment of the present invention, wherein the replenishment container is positioned above the reaction assembly;

[0039] Figure 2 This is a schematic structural diagram of a controlled atmosphere device according to an embodiment of the present invention, wherein the replenishment container is located inside the chamber;

[0040] Figure 3 This is a schematic structural diagram of a controlled atmosphere device according to an embodiment of the present invention, wherein the liquid replenishment space and the reaction space are connected through a gas washing space;

[0041] Figure 4 This is a schematic structural diagram of a controlled atmosphere device according to an embodiment of the present invention, wherein the liquid replenishment space is directly connected to the reaction space;

[0042] Figure 5 This is a schematic structural diagram of a controlled atmosphere device according to another embodiment of the present invention, wherein the liquid replenishment space is directly connected to the reaction space;

[0043] Figure 6 This is a schematic structural diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention. Detailed Implementation

[0044] The following reference Figures 1 to 6 This invention describes a controlled atmosphere apparatus and a refrigeration / freezing apparatus according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" 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 with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" 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.

[0045] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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.

[0048] Modified atmosphere storage (MAP) technology is a method of preserving food by controlling the proportion of gases within a sealed space. Its basic principle is to create a controlled atmosphere with a composition different from the normal atmosphere within a defined enclosed space. This inhibits the physiological and biochemical processes and microbial activity that lead to food spoilage. For fruits and vegetables, this primarily involves inhibiting aerobic respiration, preventing accelerated spoilage, and thus extending their shelf life. MAP technology is implemented using modified atmosphere storage devices.

[0049] The key to modified atmosphere packaging (MAP) preservation technology lies in gas regulation. To achieve this, electrochemical reactions can be used to consume oxygen within a closed space, or the selective permeability of the modified atmosphere membrane can be utilized. The inventors believe the former has advantages such as high efficiency and low cost; for example, MAP can be applied to refrigeration and freezing systems to preserve food, thus possessing broad development potential. For ease of understanding, the prior art of a modified atmosphere packaging structure based on electrochemical reactions is first described below with examples.

[0050] In some embodiments, the controlled atmosphere device typically includes a cathode plate and an anode plate immersed in an electrolyte. The cathode plate is in communication with a storage space and is used to absorb oxygen from the storage space through an electrochemical reaction under the action of an electrolytic voltage, thereby providing reactants to the anode plate. The electrochemical reaction mainly takes place at the cathode and anode plates, where oxygen in the air undergoes a reduction reaction at the cathode plate: O₂ + 2H₂O + 4e⁻. -→4OH - OH generated by the cathode plate - It can be used as a reactant for the anode plate.

[0051] The anode plate is connected to the outside of the controlled atmosphere device, allowing oxygen to be released to the outside of the device via an electrochemical reaction using reactants under the influence of electrolysis voltage. OH- is generated at the cathode plate. - An oxidation reaction can occur at the anode plate, producing oxygen, i.e., 4OH⁻. - →O2 + 2H2O + 4e - .

[0052] Controlled atmosphere devices consume oxygen in the storage space to create an oxygen-deficient atmosphere, which is beneficial for preserving food within the storage space.

[0053] In some embodiments, the controlled atmosphere device may further include a housing. The housing may generally be in the shape of a flattened cuboid. A lateral opening may be provided on the housing, which may be located on the outside of the housing and communicate with the external environment, for example, with a storage space for preservation. A cathode plate is disposed at the lateral opening to define, together with the housing, a reservoir for holding electrolyte. An anode plate is disposed within the reservoir and spaced apart from the cathode plate.

[0054] One of the walls of the housing, such as the outer wall, can be opened to form a lateral opening opposite to the external environment. In this embodiment, the cathode plate can be directly used as the outer wall of the housing to seal the liquid storage chamber. The liquid storage chamber of the controlled atmosphere device can contain an alkaline electrolyte, such as 1 mol / L NaOH or KOH, or alternatively Na2CO3 or K2CO3. The concentration of the electrolyte can be adjusted according to actual needs.

[0055] In some embodiments, the controlled atmosphere device further includes a separator disposed within the liquid storage chamber and located between the cathode plate and the anode plate, for separating the cathode plate and the anode plate to prevent short circuits in the controlled atmosphere device after energization. Specifically, a plurality of protrusions are formed on the side of the separator facing the anode plate, the protrusions abutting against the anode plate, and the cathode plate abutting against the side of the separator opposite to the protrusions, so as to form a predetermined gap between the cathode plate and the anode plate, thereby separating the cathode plate and the anode plate.

[0056] In some embodiments, the controlled atmosphere device further includes a fixing component disposed on the outer side of the cathode plate and configured to fix the cathode plate to a lateral opening in the housing. Specifically, the fixing component may further include a metal frame and a support member. The metal frame abuts against the outer side of the cathode plate. The metal frame is in direct contact with the cathode plate, which can serve to press the cathode plate firmly, and the metal frame is also provided with a cathode power supply terminal for connecting to an external power source. An anode power supply terminal may be formed on the anode plate.

[0057] The support member has a slot for insertion. When the upright part of the metal frame is inserted into the slot of the support member, the metal frame can be fixed and positioned by the support member, thereby pressing the metal frame against the cathode plate.

[0058] In some embodiments, the modified atmosphere device further includes a power supply device, such as a battery. The two electrode terminals of the power supply device are electrically connected to the corresponding cathode power supply terminal and anode power supply terminal of the modified atmosphere device, respectively, and provide power for the electrochemical reaction. In this embodiment, the modified atmosphere device, due to the presence of the power supply device, allows the cathode and anode plates of the modified atmosphere device to undergo electrochemical reactions under the action of an electrolytic voltage.

[0059] Of course, a controlled atmosphere device may not include a power supply unit, which is an external power supply device. For example, when the controlled atmosphere device is installed inside a refrigeration and freezing unit and connected to the preservation space inside the refrigeration and freezing unit, the controlled atmosphere device can be electrically connected to the power supply module of the refrigeration and freezing unit to provide it with power. This configuration can reduce the size of the refrigeration and freezing unit, making it more convenient to carry and install.

[0060] This concludes the description of the structure of a modified atmosphere packaging (MAP) device. As described above, an oxidation reaction occurs at the anode plate to produce oxygen. This oxygen forms numerous tiny bubbles in the electrolyte. These bubbles rise to the surface and burst, forming extremely small electrolyte particles that remain suspended above the electrolyte. The continuously generated oxygen carries away some of these electrolyte particles, which are then discharged from the MAP device's outlet. The electrolyte level decreases with use, exposing the cathode and anode plates and affecting the device's efficiency. When the electrolyte level drops to a certain point, the electrolysis components become exposed, reducing electrolysis efficiency and potentially preventing the electrochemical reaction from occurring. This reduces the oxygen removal and preservation effect, shortening the food's shelf life and resulting in a poor user experience.

[0061] In view of the above problems, the inventors have proposed the present invention to provide a controlled atmosphere device and a refrigeration and freezing device that overcome or at least partially solve the above problems, aiming to solve the problem of insufficient electrolyte in existing controlled atmosphere devices and thus improve the user experience. Among other things, Figure 1 This is a schematic structural diagram of a modified atmosphere device according to an embodiment of the present invention, wherein the replenishment container is positioned above the reaction assembly. Figure 1 As shown, and in combination Figures 2 to 5This invention provides a controlled atmosphere device 100, including a reaction assembly and a replenishment container. The reaction assembly includes a chamber 111 and an electrolysis assembly 112. The electrolysis assembly 112 is mounted on the chamber 111. A reaction space 113 is formed within the chamber 111, or the chamber 111 and the electrolysis assembly 112 enclose each other, for carrying out an electrochemical reaction within the reaction space 113 to consume oxygen in a storage space outside the chamber 111. The replenishment container forms a replenishment space 121 communicating with the reaction space 113, for storing and replenishing electrolyte into the reaction space 113. The replenishment container also forms a transparent window 122 separated between the inner and outer sides of the replenishment space 121, for making the electrolyte stored in the replenishment space 121 visible from the outside of the replenishment space 121. Each replenishment container can be connected to one reaction assembly, and of course, each replenishment container can also be connected to multiple reaction assemblies.

[0062] In the modified atmosphere device 100 of this invention, the replenishment container can replenish electrolyte to the reaction space 113, and the user can understand the electrolyte storage status in the replenishment space 121 through the transparent window 122 on the replenishment container. When the electrolyte in the replenishment space 121 is low, electrolyte can be manually added, which can solve the problem of insufficient electrolyte in the existing modified atmosphere device 100 and achieve the effect of improving the user experience.

[0063] In some embodiments of the present invention, the transparent window 122 forms at least one sidewall of the replenishment container, resulting in a larger area of ​​the transparent window 122, which is beneficial for the user to observe the electrolyte condition inside the replenishment container. For example, the transparent window 122 can be made of materials such as transparent glass or acrylic sheet. In some other embodiments, a window communicating between the inside and outside of the replenishment container is formed on at least one sidewall of the replenishment container, and the transparent window 122 is mounted on the window. This arrangement allows the liquid condition inside the replenishment container to be observed with only a small transparent window 122, which helps to save material for the transparent window 122. One side of the replenishment container where the transparent window 122 is located can be positioned facing the user for easy observation. Of course, it is also possible to simultaneously make one sidewall of the replenishment container a transparent window 122, and form a window on the other sidewall, with the transparent window 122 mounted on the window.

[0064] In some embodiments of the present invention, such as Figure 2As shown, the replenishment container also forms a replenishment port 123 communicating with the replenishment space 121. The replenishment space 121 is connected to the reaction space 113 at least through the replenishment port 123. The electrolyte in the replenishment space 121 enters the reaction space 113 through the replenishment port 123 to replenish the electrolyte in the reaction space 113. For example, the replenishment port 123 can be opened or closed in a controlled manner. When electrolyte needs to be replenished in the reaction space 113, the replenishment port 123 is opened, and the electrolyte in the replenishment space 121 enters the replenishment space 121. When electrolyte does not need to be replenished in the reaction space 113, the replenishment port 123 is closed, and the electrolyte in the replenishment space 121 no longer enters the replenishment space 121.

[0065] In some embodiments of the present invention, such as Figures 1 to 5 As shown, a filling port 126 communicating with the filling space 121 is also formed on the top of the replenishment container for adding electrolyte into the replenishment container. For example, when the user finds that the electrolyte in the replenishment container is low through the transparent window, electrolyte can be added into the replenishment container through the filling port 126.

[0066] In some embodiments of the present invention, such as Figures 1 to 5 As shown, a first liquid level detection component 131 is provided on the replenishment container to detect the liquid level height of the electrolyte in the replenishment space 121. The first liquid level detection component 131 can be a non-contact liquid level switch, such as a capacitive liquid level switch, or a contact liquid level switch, such as a float liquid level switch. The first liquid level detection component 131 can detect the liquid level height of the electrolyte in the replenishment space 121. For example, when the liquid level height of the electrolyte in the replenishment space 121 is lower than the liquid level threshold, a reminder signal can be issued to remind the user to replenish the electrolyte in the replenishment container. In this embodiment, the first liquid level component works together with the transparent window 122 on the replenishment container to jointly remind the user.

[0067] In some other embodiments, such as Figures 1 to 5 As shown, a second liquid level detection component 132 is installed on the tank 111 to detect the liquid level of the electrolyte in the reaction space 113. For example, when the liquid level of the electrolyte in the reaction space 113 is lower than the liquid level threshold, the replenishment space 121 is connected to the reaction space 113, and the electrolyte in the replenishment space 121 can be replenished into the reaction space 113. The second liquid level detection component 132 can be a non-contact liquid level switch, such as a capacitive liquid level switch, or a contact liquid level switch, such as a float liquid level switch. Of course, a first liquid level detection component 131 can be installed on the replenishment container, and a second liquid level detection component 132 can be installed on the tank 111 to ensure that the electrolyte in the replenishment space 121 and the reaction space 113 is always kept sufficient.

[0068] In some embodiments of the present invention, such as Figure 1As shown, the replenishment container is located above the reaction assembly, allowing the electrolyte in the container to enter the reaction space 113 under gravity. A first liquid level sensor is installed at the bottom of the replenishment space 121 within the replenishment container. This first liquid level sensor is configured to generate a response signal when the electrolyte level in the replenishment space 121 is not higher than the sensor level. In other words, when the electrolyte level in the replenishment space 121 is lower than or equal to the first liquid level sensor level, it indicates that the electrolyte in the replenishment space 121 is about to be depleted. At this time, the first liquid level sensor generates a response signal to remind the user to replenish the electrolyte in the replenishment container. The type of the first liquid level sensor in this embodiment is not limited; it can be a non-contact liquid level switch or a contact liquid level switch as described in the previous embodiment.

[0069] In some embodiments of the present invention, such as Figure 2 As shown, the replenishment container is located inside the chamber 111 and above the electrolysis assembly 112, allowing the electrolyte in the replenishment container to enter the reaction space 113 under gravity. The location of the replenishment container within the chamber 111 makes the controlled atmosphere device 100 more compact, occupying less space and facilitating its installation on other equipment, such as refrigeration or freezing systems. Specifically, another transparent window 122 can be provided on the wall of the chamber 111 at a position corresponding to the transparent window 122 of the replenishment container, allowing the user to observe the electrolyte level in the replenishment container through both the transparent window 122 on the chamber 111 and the transparent window 122 on the replenishment container. A first liquid level sensor is installed inside the replenishment container at the bottom of the replenishment space 121. The first liquid level sensor is configured to generate a response signal when the electrolyte level in the replenishment space 121 is not higher than the sensor level. Similarly, the first liquid level sensor serves to remind the user to replenish the electrolyte in a timely manner.

[0070] In some embodiments of the present invention, such as Figure 1 As shown, a connecting pipe 140 connects the replenishment container and the chamber 111. The inlet end of the connecting pipe 140 is connected to a position in the replenishment space 121 above the reaction space 113, and the outlet end of the connecting pipe 140 is connected to the top of the reaction space 113. This arrangement allows the electrolyte in the replenishment container to enter the reaction space 113 through the connecting pipe 140 under the influence of gravity, eliminating the need for a replenishment pump or other structures for liquid extraction. This simplifies the structure of the controlled atmosphere device 100 and reduces costs. For example, the connecting pipe 140 is a flexible hose, which facilitates installation and fixation.

[0071] In some embodiments of the present invention, such as Figure 1As shown, the chamber 111 is located below the replenishment container, and a first opening 114 is formed at the top of the chamber 111 to allow the electrolyte in the replenishment space 121 to enter the reaction space 113. Under the influence of gravity, the electrolyte in the replenishment container enters the reaction space 113 within the chamber 111 through the first opening 114. There is at least one first opening 114, which can be configured according to actual needs. The chamber 111 and the replenishment container can be directly connected or connected via a connecting pipe 140. Figures 1 to 5 As shown, the reaction assembly also includes a float 115, which floats or suspends on the electrolyte within the reaction space 113, controlling the opening and closing of the first opening 114 by its buoyancy within the reaction space 113. For example, when the electrolyte level in the reaction space 113 rises, the float 115 moves upward under the buoyancy of the electrolyte until it closes the first opening 114. When the electrolyte level in the reaction space 113 drops, the float 115 also drops with the electrolyte level, and the first opening 114 becomes open.

[0072] In some embodiments of the present invention, such as Figures 1 to 5 As shown, the top of the float 115 forms at least one closure portion disposed opposite to the first opening 114 and / or connects to at least one closure device disposed opposite to the first opening 114. The closure portion may be made of an elastic material, allowing the float 115 to seal the first opening 114 more tightly and with better sealing performance. The closure portion is larger in size relative to the first opening 114 to facilitate a complete seal of the first opening 114. The closure device may be a large-area waterproof and breathable membrane that seals the first opening 114, allowing gas to pass through while preventing liquid from passing through.

[0073] In some embodiments of the present invention, such as Figures 1 to 5 As shown, the modified atmosphere device 100 also includes a vertically extending guide rod 171. The upper end of the guide rod 171 is located at the top of the reaction space 113, and the lower end of the guide rod 171 is provided with a horizontally extending stop rod 172. A guide hole is formed on the float 115, which is reciprocatingly slidably fitted onto the guide rod 171. The float 115 is stopped between the top of the reaction space 113 and the stop rod 172. Due to the presence of the guide rod 171, the stop rod 172, and the guide hole, the float 115 can reciprocate in the vertical direction under the drive of the electrolyte, thereby sealing the first opening 114, and the size of the sealing part or sealing device does not need to be too large.

[0074] In some embodiments of the present invention, such as Figure 2As shown, the replenishment container is located inside the chamber 111 and above the electrolysis assembly 112. The bottom of the replenishment container forms a first opening 114 for the electrolyte in the replenishment space 121 to flow into the reaction space 113. Under the influence of gravity, the electrolyte in the replenishment container enters the reaction space 113 within the chamber 111 through the first opening 114. There is at least one first opening 114, which can be configured according to actual needs. Specifically, as described in the above embodiment, another transparent window 122 can also be provided on the chamber wall of the chamber 111 at a position corresponding to the transparent window 122 of the replenishment container, allowing the user to observe the electrolyte in the replenishment container through both the transparent window 122 on the chamber 111 and the transparent window 122 on the replenishment container. The reaction assembly also includes a float 115, which floats or suspends on the electrolyte in the reaction space 113 and is located below the first opening 114, used to control the opening and closing of the first opening 114 by rising and falling within the reaction space 113. The atmosphere control device 100 in this embodiment can also be provided with the sealing part, sealing device, guide rod 171 and stop rod 172 as in the above embodiments, and achieve the same technical effect, which will not be described in detail here.

[0075] In some embodiments of the present invention, such as Figures 1 to 5 As shown, the chamber 111 also forms an outlet 117 located at the top of the reaction space 113. The outlet 117 is used to discharge oxygen generated by the electrochemical reaction of the electrolysis unit 112. There is at least one outlet 117, and the number of outlets 117 can be set according to actual needs.

[0076] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the chamber 111 also forms a gas scrubbing space 116 connected to the top of the reaction space 113 and a gas outlet 117 connected to the top of the gas scrubbing space 116. The gas scrubbing space 116 is configured to store electrolyte at least at the bottom to separate electrolytes entrained in the gas discharged from the reaction space 113. Those skilled in the art will understand that when gas escapes from the reaction space 113, it carries a small amount of electrolyte particles and a small amount of moisture from the electrolyte, causing the electrolyte in the reaction space 113 to gradually decrease, resulting in electrolyte waste. The gas from the reaction space 113 passes through the gas scrubbing space 116, and under the action of the electrolyte in the gas scrubbing space 116, the small amount of electrolyte particles and moisture that escape are separated and stored in the electrolyte in the gas scrubbing space 116, while the gas is discharged from the gas outlet 117. The gas referred to here mainly refers to oxygen escaping from the reaction space 113.

[0077] In some embodiments of the present invention, the replenishment space 121 and the reaction space 113 are directly connected or indirectly connected at least through the gas washing space 116. For example, as Figure 5As shown, the replenishment space 121 and the reaction space 113 are directly connected. Specifically, the replenishment space 121 and the reaction space 113 are separated by a vertically arranged partition plate, with a connecting port at the bottom of the partition plate, allowing direct communication between the replenishment space 121 and the reaction space 113. This arrangement ensures that the replenishment space 121 and the reaction space 113 are always in a connected state, allowing the electrolyte in the replenishment space 121 to directly enter the reaction space 113 through the connecting port. In other words, the electrolyte consumed in the reaction space 113 can be replenished promptly through the replenishment space 121. For example, as... Figure 4 As shown, the replenishment space 121 and the reaction space 113 are connected through the gas washing space 116. Specifically, the replenishment space 121 is located diagonally above the reaction space 113, and the replenishment space 121 and the gas washing space 116 are spaced apart to the left and right to form a communicating vessel structure. The replenishment space 121 can replenish the electrolyte consumed by the gas washing space 116 in a timely manner. The electrolyte in the replenishment space 121 first enters the gas washing space 116, and then enters the reaction space 113 through the gas washing space 116.

[0078] In some embodiments of the present invention, such as Figure 3 As shown, the top of the replenishment space 121 is higher than the bottom of the scrubbing space 116, so that a horizontally arranged connecting channel 150 connects the replenishment space 121 and the scrubbing space 116, forming a communicating vessel structure. Electrolyte from the replenishment space 121 can enter the scrubbing space 116 through the connecting channel 150, and the electrolyte consumed in the scrubbing space 116 can be replenished in time by the electrolyte in the replenishment space 121. A first liquid level detection component 131 is installed on the replenishment container, adjacent to and below the connecting channel 150, for generating a response signal when the liquid level of the electrolyte in the replenishment space 121 is not higher than the connecting channel 150. In other words, when the electrolyte level in the replenishment space 121 is lower than or equal to that in the connecting channel 150, there is less electrolyte in the replenishment space 121. At this time, the electrolyte in the replenishment space 121 can no longer flow directly into the gas washing space 116 through the connecting channel 150. The user can replenish the electrolyte in the replenishment space 121 in a timely manner according to the response signal sent by the first liquid level detection component 131.

[0079] In some embodiments of the present invention, such as Figure 3As shown, the replenishment space 121 is connected to the reaction space 113 or the gas washing space 116 via at least a horizontally arranged connecting channel 150. A first one-way mechanism 161 is provided in the connecting channel 150 to prevent the electrolyte from flowing back from the reaction space 113 or the gas washing space 116 to the replenishment space 121. That is, the first one-way mechanism 161 allows the electrolyte in the replenishment space 121 to enter the gas washing space 116 or the reaction space 113 through the connecting channel 150, while the electrolyte in the gas washing space 116 or the replenishment space 121 cannot enter the replenishment space 121 through the connecting channel 150. In other words, the flow direction of the liquid in the connecting channel 150 is unidirectional.

[0080] In some embodiments of the present invention, such as Figure 3 As shown, the first unidirectional mechanism 161 includes a first pendulum, the top of which is hinged to the upper side of the connecting channel 150, and the bottom of which is inclined toward the end of the connecting channel 150 away from the replenishment space 121. This allows the pendulum to swing and cut off the connecting channel 150 under the impact force of the electrolyte and its own weight. The first pendulum is subjected to its own weight, the impact force from the electrolyte in the replenishment space 121, and the impact force from the electrolyte in the gas washing space 116 or the reaction space 113. The impact force from the electrolyte in the replenishment space 121 is opposite in direction to the impact force from the electrolyte in the gas washing space 116 or the reaction space 113. When the two impact forces are approximately equal, the first pendulum cuts off the connecting channel 150 under its own weight. When the impact force of the electrolyte from the gas washing space 116 or the reaction space 113 is greater than the impact force of the electrolyte from the replenishment space 121, the first vane, under the combined action of its own weight and the impact force of the electrolyte from the gas washing space 116 or the reaction space 113, cuts off the connecting channel 150. When there is less electrolyte in the gas washing space 116 or the reaction space 113, the impact force of the electrolyte from the replenishment space 121 is greater than the impact force of the electrolyte from the gas washing space 116 or the reaction space 113, and the first vane swings under the impact force of the electrolyte from the replenishment space 121, opening the connecting channel 150. In this embodiment, the first vane has a simple structure and ingenious design, which can automatically control the cutting off and opening of the connecting channel 150. Of course, the first one-way mechanism 161 can also be a one-way valve or other structures.

[0081] In some embodiments of the present invention, such as Figure 4As shown, the gas scrubbing space 116 and the reaction space 113 are connected by a second opening 118. A second one-way mechanism 162 is provided on the second opening 118 to open when the pressure in the reaction space 113 is greater than the pressure in the gas scrubbing space 116. Due to the continuous electrochemical reaction in the reaction space 113, a large amount of oxygen is generated in the upper part of the reaction space 113. As the oxygen accumulates, the pressure in the upper part of the reaction space 113 gradually increases, requiring the oxygen to be discharged. At this time, the second one-way mechanism controls the opening of the second opening 118, allowing oxygen to enter the gas scrubbing space 116 through the second opening 118. The electrolyte in the gas scrubbing space 116 can also enter the reaction space 113 through the opened second opening 118 to replenish the electrolyte consumed in the reaction space 113. Furthermore, the electrolyte in the gas washing space 116 contains electrolyte particles separated from oxygen. These electrolyte particles can re-enter the reaction space 113, allowing the electrolyte that escapes with oxygen in the reaction space 113 to be recycled and reused. This reduces the cost of adding electrolyte, so that only pure water needs to be added to the reaction space 113.

[0082] In some embodiments of the present invention, such as Figure 4 As shown, the second one-way mechanism 162 includes a second pendulum. The hinged end of the second pendulum is connected to one side edge of the upper end of the second opening 118, and the free end overlaps the opposite side edge of the upper end of the second opening 118. Initially, the second pendulum closes the second opening 118 under its own weight and the pressure within the gas washing space 116. When oxygen is continuously generated and accumulated in the upper part of the reaction space 113, causing the upward force from the gas in the reaction space 113 on the second pendulum to exceed the weight of the second pendulum and the pressure within the gas washing space 116, the second pendulum swings upward and opens the second opening 118. In this embodiment, the second pendulum has a simple structure and ingenious design, enabling automatic control of the opening and closing of the second opening 118. Of course, the second one-way mechanism 162 can also be a one-way valve.

[0083] In some embodiments of the present invention, as shown in the figure, the top wall of the reaction space 113 may arch upward to form an arched portion, so that a gas gathering space is formed in the upper part of the reaction space 113. The second opening 118 is disposed on the arched portion. This gas gathering space is conducive to the accumulation of oxygen continuously generated in the reaction space 113, and the gas gathering space has a slight pressurizing effect on the gas, which is conducive to the formation of an upward force of gas concentrated at the arched portion, so as to push the second blade to swing upward, thereby opening the second opening 118.

[0084] In some embodiments of the present invention, such as Figures 3 to 5As shown, at least one side of the replenishment container wall and at least one side of the chamber wall 111 partially or completely overlap, so that the replenishment container and the reaction assembly are connected together through the overlapping portion. That is, the replenishment container and the chamber wall 111 can share a single wall surface, saving materials and making the structure of the controlled atmosphere device 100 more compact. As shown in the figure, one side of the replenishment container wall and one side of the chamber wall 111 partially overlap. Figure 4 and Figure 5 As shown, one side of the replenishment container wall and one side of the chamber wall 111 completely overlap.

[0085] In some embodiments of the present invention, the top of the replenishment space 121 is not lower than the top of the reaction space 113, and the replenishment space 121 and the reaction space 113 are spaced apart to form a communicating vessel structure. This arrangement allows the electrolyte consumed in the reaction space 113 to be quickly replenished through the replenishment space 121, and the electrolyte level in the reaction space 113 can be understood by observing the electrolyte level in the replenishment space 121.

[0086] In some embodiments of the present invention, such as Figure 4 and Figure 5 As shown, the replenishment container includes a main body 124 and a buffer portion 125. A replenishment space 121 is disposed within the main body 124. The buffer portion 125 is connected to the top of the main body 124 and offset to one side of the main body 124, with a replenishment port 123 formed at the top of the buffer portion 125. When electrolyte is added to the replenishment container, the electrolyte first enters the buffer portion 125 through the replenishment port 126 and then flows into the main body 124 through the buffer portion 125. This arrangement allows the electrolyte to slowly enter the replenishment space 121, preventing direct entry of electrolyte into the replenishment space 121 and thus avoiding severe fluctuations in electrolyte levels within the replenishment space 121.

[0087] This invention also provides a refrigeration and freezing device 200, such as... Figure 6As shown, the device includes a storage compartment 210 and a controlled atmosphere device 100 as described in any of the above embodiments. The storage compartment 210 forms a storage space 211 for storing items and a storage opening for retrieving items. The controlled atmosphere device 100 is disposed on the wall of the storage compartment adjacent to the storage opening and / or on the wall of the storage compartment opposite to the storage opening. For example, a refrigeration / freezing device includes a cabinet, a sealed container inside the cabinet, and a pull-out drawer inside the sealed container. The sealed container and the drawer constitute the storage compartment 210, and the space defined by the sealed container and the drawer is the storage space 211. The controlled atmosphere device can be installed above the sealed container, and the reaction space 113 of the controlled atmosphere device communicates with the storage space 211. An observation port or another transparent window 122 may be provided at the location corresponding to the transparent window 122 in the storage compartment, so that the user can observe the storage status of the electrolyte in the replenishment container through the observation port, the transparent window 122 on the storage compartment, or the transparent window 122 on the liquid storage container.

[0088] In the refrigeration and freezing apparatus of this invention, the replenishment container of the controlled atmosphere device 100 can replenish electrolyte to the reaction space 113. Furthermore, the user can view the electrolyte level in the replenishment space 121 through the transparent window 122 on the replenishment container. When the electrolyte level in the replenishment space 121 is low, electrolyte can be manually added, solving the problem of electrolyte insufficiency common in existing controlled atmosphere devices 100 and improving the user experience. Moreover, the controlled atmosphere device 100 consumes oxygen in the storage space, creating an oxygen-deficient atmosphere. This reduces the aerobic respiration intensity of fruits, vegetables, and other food items in the storage space, thereby enabling the storage space to preserve freshness and extending the food's shelf life.

[0089] 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 controlled atmosphere device, characterized in that, include: A reaction assembly, comprising a chamber and an electrolysis assembly, wherein the electrolysis assembly is mounted on the chamber, and a reaction space is formed within the chamber or the chamber and the electrolysis assembly together, for carrying out an electrochemical reaction within the reaction space to consume oxygen in the storage space outside the chamber. A replenishment container forms a replenishment space communicating with the reaction space for storing and replenishing electrolyte to the reaction space; and the replenishment container also forms a transparent window spaced between the inner and outer sides of the replenishment space for making the electrolyte stored in the replenishment space visible from the outside of the replenishment space. The chamber also forms a gas scrubbing space connected to the top of the reaction space and a gas outlet connected to the top of the gas scrubbing space; wherein the gas scrubbing space is configured to store the electrolyte at least at the bottom to separate electrolytes entrained in the gas discharged from the reaction space. The top of the replenishment space is higher than the bottom of the scrubbing space, so as to connect a horizontally arranged connecting channel between the replenishment space and the scrubbing space, forming a communicating vessel structure; and The replenishment container is equipped with a first liquid level detection component adjacent to and below the connecting flow channel, which is used to generate a response signal when the liquid level of the electrolyte in the replenishment space is not higher than the connecting flow channel; The replenishment space is connected to the gas washing space via at least a horizontally arranged connecting channel. A first one-way mechanism is provided in the connecting channel to prevent the electrolyte from flowing back from the gas washing space to the replenishment space.

2. The controlled atmosphere device according to claim 1, characterized in that, The transparent window forms at least one sidewall of the replenishment container; and / or A window communicating between the inside and outside of the replenishment container is formed on at least one side wall of the replenishment container, and a transparent window is fitted onto the window.

3. The controlled atmosphere device according to claim 1, characterized in that, The replenishment container is equipped with a first liquid level detection component for detecting the liquid level height of the electrolyte within the replenishment space; and / or A second liquid level detection component is installed on the chamber body to detect the liquid level height of the electrolyte in the reaction space.

4. The controlled atmosphere device according to claim 1, characterized in that, The first unidirectional mechanism includes a first pendulum, the top of which is hinged to the upper side of the connecting channel, and the bottom of which is inclined toward the end of the connecting channel away from the replenishment space, for pitching and swinging under the impact force of the electrolyte and the weight of the first pendulum to cut off and open the connecting channel.

5. The controlled atmosphere device according to claim 1, characterized in that, The gas washing space and the reaction space are connected by a second opening, which is provided with a second one-way mechanism for opening when the pressure in the reaction space is greater than the pressure in the gas washing space.

6. The controlled atmosphere device according to claim 5, characterized in that, The second one-way mechanism includes a second pendulum, the hinged end of which is connected to one side edge of the upper end of the second opening, and the free end which overlaps the opposite side edge of the upper end of the second opening.

7. The controlled atmosphere device according to claim 1, characterized in that, At least one side of the replenishment container wall and at least one side of the chamber wall partially or completely overlap, so that the replenishment container and the reaction assembly are connected together through the overlapping portion.

8. The controlled atmosphere device according to claim 1, characterized in that, The top of the replenishment space is not lower than the top of the reaction space, and the replenishment space and the reaction space are spaced apart to form a communicating vessel structure.

9. The controlled atmosphere device according to claim 1, characterized in that, The replenishment container includes a main body and a buffer section. The replenishment space is disposed within the main body. The buffer section is connected to the top of the main body and offset to one side of the main body, and a replenishment port is formed at the top of the buffer section.

10. A refrigeration and freezing apparatus, characterized in that, include: A storage compartment, wherein the storage compartment forms a storage space for storing items and a storage opening for retrieving items; The controlled atmosphere device as described in any one of claims 1 to 9, wherein the controlled atmosphere device is disposed on the wall of the storage compartment adjacent to the storage opening and / or on the wall of the storage compartment opposite to the storage opening.

Images