Automatic liquid supplementing module, air adjusting device and refrigerator

Abstract

The invention discloses an automatic liquid supplementing module, an air adjusting device and a refrigerator, the automatic liquid supplementing module comprises a box body, the box body is provided with a liquid storage cavity, a liquid control cavity and a hydraulic control assembly, and the hydraulic control assembly is provided with an isolation plate and a hydraulic control pipe; the liquid storage cavity and the liquid control cavity are separated by the separation plate, a liquid inlet hole communicated with the liquid storage cavity and the liquid control cavity is formed in the separation plate, the first end of the liquid control pipe extends into the liquid control cavity, and the second end of the liquid control pipe extends out of the liquid control cavity; pipe cavities of at least part of the hydraulic control pipes are higher than the highest liquid level line of the liquid storage cavity; based on the structure of the automatic liquid supplementing module provided by the invention, when the automatic liquid supplementing module is specifically applied to the scene of a controlled atmosphere device and a refrigerator, electrolyte supplementing can be automatically performed on the electrolysis module, electric elements or other complex structural parts are not needed, the technological process is simplified, the cost is reduced, and the production efficiency is improved. And greater convenience and economical efficiency are brought to the application of a modified atmosphere fresh-keeping technology.

Description

Technical Field

[0001] This invention relates to preservation technology, and more particularly to an automatic liquid replenishment module, a modified atmosphere device, and a refrigerator. Background Technology

[0002] Modified atmosphere storage (MAP), an advanced technology that effectively extends the shelf life of food by adjusting the composition of ambient gases, is increasingly widely used, making refrigeration and freezing equipment with this function highly sought after in the market. The requirements for the MAP environment vary depending on the type of food. For example, fruits and vegetables experience accelerated respiration in high-oxygen environments, leading to reduced organic matter content and nutrient loss; therefore, they are better suited for storage in low-oxygen environments. Conversely, for meats, low-oxygen environments may affect their color and texture, so they require high-oxygen environments to maintain optimal quality.

[0003] Existing controlled atmosphere devices typically consist of a cathode, an anode, and an electrolyte filling the space between them. These devices facilitate the reduction of oxygen at the cathode by allowing contact between the cathode and the surrounding air; the specific reaction is: O₂ + 2H₂O + 4e⁻. - →4OH - Meanwhile, an oxidation reaction occurs at the anode, producing oxygen, with the reaction equation: 4OH⁻. - →O2 + 2H2O + 4e - .

[0004] However, in practical applications, as the electrochemical reaction continues, the electrolyte in the controlled atmosphere device gradually decreases. When the electrolyte level drops to a certain point, it not only affects the efficiency of the electrochemical reaction but may even prevent the reaction from proceeding. Therefore, timely replenishment of electrolyte is crucial for maintaining the normal operation of the controlled atmosphere device. Currently, technologies using electrically controlled ball valves or power pumps for electrolyte replenishment exist on the market, but these solutions are complex in structure and expensive.

[0005] In view of this, it is necessary to provide an improved technical solution to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve the technical problems existing in the prior art. In order to achieve the above-mentioned objective, the present invention provides an automatic fluid replenishment module, the specific design of which is as follows.

[0007] An automatic liquid replenishment module includes: a housing having a liquid storage chamber, a liquid control chamber, and a liquid control component; the liquid control component having an isolation plate and a liquid control tube; the isolation plate separating the liquid storage chamber and the liquid control chamber and having an inlet hole connecting the liquid storage chamber and the liquid control chamber; a first end of the liquid control tube extending into the liquid control chamber, a second end of the liquid control tube extending into the outside of the liquid control chamber, and at least a portion of the lumen of the liquid control tube being higher than the highest liquid level line of the liquid storage chamber.

[0008] Furthermore, the liquid control chamber is located below the liquid storage chamber.

[0009] Furthermore, the second end of the hydraulic control tube extends to the upper part of the highest liquid level line of the liquid storage chamber.

[0010] Furthermore, the housing has a top cover located at the top, and the lower surface of the top cover is recessed upward to form an air cavity, and the second end of the hydraulic control tube extends into the air cavity.

[0011] Furthermore, the diameter of the liquid inlet gradually decreases from the liquid storage cavity toward the liquid control cavity.

[0012] Furthermore, the isolation plate is located at the bottom of the liquid storage cavity, the upper side of the isolation plate is the bottom wall of the liquid storage cavity, and the lower side of the isolation plate is the top wall of the liquid control cavity.

[0013] Furthermore, the hydraulic control tube is fixed to the isolation plate.

[0014] Furthermore, the isolation plate includes a body portion having the liquid inlet hole and a fixing portion connected to the body portion, and the liquid control assembly also has a sealing ring disposed between the fixing portion and the side wall of the liquid control chamber.

[0015] Furthermore, the box body is provided with a liquid filling port that connects the liquid storage chamber and the outside of the box body.

[0016] Furthermore, the cross-sectional area of ​​the liquid control chamber in the horizontal direction is smaller than the cross-sectional area of ​​the liquid storage chamber in the horizontal direction.

[0017] Furthermore, the housing also has a filter chamber for filtering gas, which is in communication with the liquid storage chamber.

[0018] Furthermore, the automatic liquid replenishment module has a water level limiting mechanism that limits the minimum water level in the filter chamber; the top of the box is provided with a top cover, and the top cover has an air collection chamber, an air inlet channel and an air outlet channel at a position corresponding to the filter chamber. The lower end of the air outlet channel has an air inlet hole that is lower than the liquid level of the minimum water level in the filter chamber, and the air inlet channel is connected to the upper part of the air collection chamber.

[0019] Furthermore, the water level limiting mechanism is a baffle disposed at the connection position between the liquid storage chamber and the filter chamber. The baffle extends upward from the bottom wall of the box body, and the liquid storage chamber and the filter chamber are connected at the upper part of the baffle. The top cover has a cavity wall that defines the gas collection chamber, and the lower edge of the cavity wall is lower than the plane where the lowest water level of the filter chamber is located. The plane where the bottom wall of the filter chamber is located is lower than the plane where the bottom wall of the liquid storage chamber is located.

[0020] The present invention also provides a modified atmosphere device, which includes an electrolysis module for preparing oxygen-modified gas, the electrolysis module including an electrolyte container and an electrode; the modified atmosphere device further includes the above-mentioned automatic liquid replenishment module, the housing having a liquid outlet at the bottom of the liquid control chamber, the automatic liquid replenishment module being connected to the electrolyte container through the liquid outlet, and the first end of the liquid control tube being not lower than the highest edge of the electrode.

[0021] The present invention further provides a refrigerator, including a cabinet, and the refrigerator also has the above-described automatic liquid replenishment module or modified atmosphere device.

[0022] The beneficial effects of this invention are: based on the structure of the automatic liquid replenishment module provided by this invention, in specific applications such as modified atmosphere devices and refrigerators, the electrolyte of the electrolysis module can be automatically replenished without the need for electric components or other complex structural parts, which simplifies the process and reduces costs, bringing greater convenience and economy to the application of modified atmosphere preservation technology. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 The figure shown is a three-dimensional schematic diagram of one embodiment of the automatic fluid replenishment module of the present invention;

[0025] Figure 2 As shown Figure 1 A schematic diagram of the structure after a portion is removed along the AA' direction;

[0026] Figure 3 As shown Figure 2 Enlarged diagram of part a in the middle;

[0027] Figure 4 As shown Figure 2 A schematic plan view of the cross-section of the structure shown;

[0028] Figure 5 The diagram shows the combination. Figure 4 A schematic diagram of fluid replenishment control in section b;

[0029] Figure 6 As shown Figure 1 The diagram shown is an exploded view of the automatic fluid replenishment module.

[0030] Figure 7 The diagram shows the assembly of the hydraulic control components;

[0031] Figure 8 As shown Figure 1 A schematic diagram of the structure after a portion is removed along the BB' direction;

[0032] Figure 9 As shown Figure 8 Enlarged schematic diagram of section C in the middle;

[0033] Figure 10 As shown Figure 9 A schematic plan view of the cross-section of the structure shown;

[0034] Figure 11 The diagram shown is a schematic representation of the first angle of the controlled atmosphere device.

[0035] Figure 12 As shown Figure 11 Explosion diagram of a controlled atmosphere device;

[0036] Figure 13 The diagram shown is a second-angle schematic of the controlled atmosphere device.

[0037] Figure 14 As shown Figure 13 Explosion diagram of a controlled atmosphere device;

[0038] Figure 15 The diagram shown is a schematic representation of another embodiment of the fluid replenishment module of the present invention;

[0039] Figure 16 The diagram shown is another embodiment of the fluid replenishment module of the present invention.

[0040] In the diagram, 10 represents the automatic fluid replenishment module, and 100 represents the housing.

[0041] 101 is the liquid storage chamber, 1010 is the first bottom wall, 102 is the liquid control chamber, 103 is the gas chamber, 104 is the filter chamber, 1040 is the second bottom wall, and 105 is the gas collection chamber.

[0042] 11 is the base, 110 is the liquid outlet, 111 is the wall of the liquid storage chamber, 1111 is the baffle, and 112 is the wall of the liquid control chamber.

[0043] 12 is the top cover, 120 is the protrusion, 121 is the air inlet channel, 1220 is the lower air inlet hole, 122 is the air outlet channel, 123 is the cavity wall of the air collecting chamber (105), and 124 is the liquid filling port.

[0044] 13 is the hydraulic control component, 131 is the isolation plate, 1311 is the main body, 1312 is the fixing part, 1310 is the mounting groove, 132 is the hydraulic control pipe, 133 is the sealing ring, and 130 is the liquid inlet.

[0045] 20 is the electrolysis module, 200 is the housing, 201 is the liquid inlet, 202 is the cathode plate, and 21 is the clearance area. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] refer to Figure 1 , Figure 2 , Figure 3 , Figure 15 , Figure 16 As shown, the automatic liquid replenishment module involved in the present invention includes a box 100, which has a liquid storage chamber 101 and a liquid control chamber 102.

[0048] Specifically, in this embodiment, the housing 100 includes a base 11, a liquid storage chamber 101, and a liquid control chamber 102, both formed within the base 11. The liquid storage chamber 101 is formed by a liquid storage chamber constituting wall 111, and the liquid control chamber 102 is formed by a liquid control chamber constituting wall 112. The liquid storage chamber constituting wall 111 and the liquid control chamber constituting wall 112 together define the shape of the base 11. As a preferred manufacturing method, in some embodiments, the liquid storage chamber constituting wall 111 and the liquid control chamber constituting wall 112 are integrally formed, thereby preventing leakage and other defects in the base 11.

[0049] Further reference Figure 1 , Figure 2 , Figure 3As shown, in this invention, the housing of the automatic liquid replenishment module 10 further includes a liquid control component 13, which has an isolation plate 131 and a liquid control tube 132. The isolation plate 131 separates the liquid storage chamber 101 from the liquid control chamber 102 and has an inlet hole 130 connecting the two chambers. The first end of the liquid control tube 132 extends into the liquid control chamber 102, and the second end extends outside the chamber. At least a portion of the lumen of the liquid control tube 132 is higher than the highest liquid level line of the liquid storage chamber 101. It is readily understood that the highest liquid level line of the liquid storage chamber 101 refers to the position of the liquid surface when no further solution can be added into the liquid storage chamber 101.

[0050] Combination Figure 4 , Figure 5 As shown, referring to this specific embodiment, when both the liquid storage chamber 101 and the liquid control chamber 102 contain a solution (such as electrolyte) and the liquid level in the liquid control chamber 102 is equal to the first end of the liquid control tube 132 (i.e., Figure 4 , Figure 5 When the lower end of the liquid control tube 132 is flush with the liquid level, the first end of the liquid control tube 132 will be sealed by the solution in the liquid control chamber 102, thereby forming an air chamber on the lower side of the isolation plate 131. The solution in the storage chamber 101 cannot flow into the liquid control chamber 102 through the liquid inlet 130. When the solution in the liquid control chamber 102 decreases, the liquid level in the liquid control chamber 102 drops, the air chamber on the lower side of the isolation plate 131 increases, the liquid seal at the first end of the liquid control tube 132 is released, and the solution in the storage chamber 101 can flow into the liquid control chamber 102 through the liquid inlet 130. The air chamber on the lower side of the isolation plate 131 decreases until the first end of the liquid control tube 132 is flush with the liquid level in the liquid control chamber 102, at which point a liquid seal is formed again.

[0051] Based on the above description, it can be understood that when the automatic replenishment module 10 replenishes the external mechanism (such as the electrolysis module 20 mentioned later) through the liquid control chamber 102, the liquid storage chamber 101 can replenish the solution in the liquid control chamber 102 in a timely and rapid manner, so that the solution in the liquid control chamber 102 has a relatively stable liquid level, thereby ensuring that the replenishment process of the automatic replenishment module 10 to the external mechanism is stable and reliable.

[0052] Another embodiment of the present invention relates to a modified atmosphere device, combined with Figures 11-14As shown, the controlled atmosphere device involved in this specific embodiment includes an electrolysis module 20 and an automatic liquid replenishment module 10. The electrolysis module 20 includes an electrolyte reservoir for preparing oxygen-controlled gas and electrodes. In practice, the automatic liquid replenishment module 10 has a liquid outlet 110 at the bottom of the liquid control chamber 102 within its housing 100. The automatic liquid replenishment module 10 replenishes electrolyte to the electrolysis module 20 through the liquid outlet 110. Specifically, the automatic liquid replenishment module is connected to the electrolyte reservoir through the liquid outlet 110, and the first end of the liquid control tube 132 is not lower than the highest edge of the electrodes. Thus, when the liquid level in the electrolysis module 20 is about to fall below the highest edge of the electrodes, the liquid in the liquid control chamber 102 will replenish the electrolyte reservoir, ensuring that the electrodes are always in contact with the electrolyte.

[0053] To better understand this invention, the following is combined with Figures 11-14 An exemplary embodiment of the controlled atmosphere device will be described.

[0054] Referring to the figure, the electrolysis module 20 includes a housing 200, and an electrolyte receiving cavity (not shown in the figure) is formed inside the housing 200. The electrolyte receiving cavity is filled with electrolyte. An inlet 201 is provided on the housing 200. The outlet 110 of the automatic replenishment module 10 can be connected to the inlet 201 through a connecting pipe (not shown in the figure), thereby realizing the electrolyte replenishment operation of the automatic replenishment module 10 to the electrolysis module 20.

[0055] In a more specific implementation, the electrodes of the electrolysis module 20 include a cathode 202 and an anode (not shown in the figure) spaced apart. In the illustrated embodiment, the housing 200 has an opening for the cathode 202 to expose its outer surface, and the anode is disposed within the electrolyte containment cavity. When energized, the cathode 202 allows oxygen outside the housing 200 to pass through in an electrochemical reaction. At this time, oxygen in the air undergoes a reduction reaction at the location of the cathode 202, with the reaction formula being O2 + 2H2O + 4e⁻. - →4OH - This reduces the oxygen content on the outside of the casing 200; the OH generated by the cathode - An oxidation reaction can occur at the anode to produce oxygen, with the reaction formula being 4OH⁻. - →O2 + 2H2O + 4e - Oxygen generated at the anode of the electrolysis module 20 can be discharged to a specific area through an exhaust port (not shown in the figure) provided on the housing 200.

[0056] In the specific implementation process, both the cathode 202 and the anode can be configured as plates. The anode plate disposed inside the housing 200 can be further provided with multiple through holes to increase the surface area of ​​the anode and allow electrolyte or air bubbles to pass through the electrolyte containment cavity.

[0057] Furthermore, in the specific design process, to simplify the assembly of the modified atmosphere device and improve the precision control during assembly, a support and locking mechanism that limits the positional relationship between the automatic liquid replenishment module 10 and the electrolysis module 20 can also be provided. (Reference) Figures 11-14 As shown in this specific embodiment, the upper regions at both ends of the housing 200 of the electrolysis module 20 form clearance areas 21; the automatic liquid replenishment module 10 is disposed on one side of the electrolysis module 20, and the housing 100 has a protrusion (not marked in the figure) extending toward the electrolysis module 20 and engaging with the clearance area 21. In this specific embodiment, the clearance area 21 and the protrusion engage to define the relative positional relationship between the automatic liquid replenishment module 10 and the electrolysis module 20, and the two together constitute a support and positioning mechanism.

[0058] Another embodiment of the present invention relates to a refrigerator, which includes a cabinet and further includes the automatic liquid replenishment module 10 or the modified atmosphere device mentioned above or below.

[0059] In some more specific embodiments, a low-oxygen space is defined within the chamber, and the controlled atmosphere device is configured to consume the oxygen within the low-oxygen space.

[0060] Furthermore, the chamber can also define a high-oxygen space, and the controlled atmosphere device is configured to supply oxygen to the high-oxygen space, so that while reducing the oxygen concentration in the low-oxygen space, the controlled atmosphere device can increase the oxygen concentration in the high-oxygen space. In specific implementation, the oxygen discharged from the exhaust port on the shell 200 of the electrolysis module 20 is used to increase the oxygen concentration in the high-oxygen space.

[0061] Based on the structure of the automatic electrolyte replenishment module provided by this invention, in specific applications such as modified atmosphere devices and refrigerators, the electrolyte of the electrolysis module can be replenished automatically without the need for electric components or other complex structural parts. This simplifies the process and reduces costs, bringing greater convenience and economy to the application of modified atmosphere preservation technology.

[0062] To better understand the present invention, some specific embodiments of the present invention will be further illustrated below with reference to the accompanying drawings.

[0063] refer to Figure 1 , Figure 2 , Figure 3 As shown, in this specific embodiment, the liquid control chamber 102 is located below the liquid storage chamber 101.

[0064] Furthermore, in this embodiment, the second end (i.e., the upper end) of the control tube 132 extends to the upper part of the highest liquid level line of the storage chamber 101. This design can prevent the solution in the storage chamber 101 from blocking the upper end of the control tube 132, causing the control assembly 13 to fail.

[0065] In this invention, the housing 100 has a top cover 12 located at the top, and the lower surface of the top cover 12 is recessed upward to form an air cavity 103, the upper end of the liquid control tube 132 extending into the air cavity 103. It is readily apparent that the air cavity 103 is located above the liquid storage cavity 101.

[0066] Combination Figure 1 , Figure 2 , Figure 3 , Figure 10 As shown, in this specific embodiment, the box body 100 includes a base 11 and a top cover 12, wherein the top cover 12 is disposed on the top of the base 11 and covers the opening at the top of the base 11. In the specific implementation, the top cover 12 is fixed to the base 11 by means of snaps and / or screws. Further as shown in the figure, the top cover 12 has an upwardly formed protrusion 120. In this specific embodiment, an air cavity 103 is formed on the lower surface side of the top cover 12 and corresponds to the position of the protrusion 120.

[0067] More preferably, the diameter of the liquid inlet 130 involved in this invention gradually decreases from the liquid storage chamber 101 toward the liquid control chamber 102. (See reference) Figure 3 , Figure 5 As shown in the illustration, in this specific embodiment, the liquid inlet 130 on the body 1311 gradually tapers from top to bottom. That is, in the top-to-bottom direction, the liquid inlet 130 is shaped like an inverted trumpet. This design structure can better guide the solution in the storage chamber 101 to the control chamber 102. (Reference) Figure 1 , Figure 2 , Figure 3 As shown, in this specific embodiment, when the liquid storage chamber 101 and the liquid control chamber 102 are arranged above and below each other, the isolation plate 131 is located at the bottom of the liquid storage chamber 101, the upper side of the isolation plate 131 is the bottom wall of the liquid storage chamber 101, and the lower side of the isolation plate 131 is the top wall of the liquid control chamber 102.

[0068] As a preferred embodiment of the present invention, refer to Figure 3 , Figure 5 As shown, in the structure of the hydraulic control component 13 involved in this embodiment, the hydraulic control tube 132 is fixed to the isolation plate 131. In specific implementation, the hydraulic control tube 132 and the isolation plate 131 can be integrally formed; or a mounting hole can be opened on the isolation plate 131, through which the hydraulic control tube 132 is passed and fixed.

[0069] In other embodiments of the present invention, the control pipe 132 may also be separately disposed from the isolation plate 131. For example, the control pipe 132 may directly penetrate the control cavity forming wall 112 and extend to the upper space of the liquid storage cavity 101, thus there is no connecting structure between the control pipe 132 and the isolation plate 131. It can be understood that although the method of separately disposing of the control pipe 132 and the isolation plate 131 can also meet the liquid control requirements, it is relatively... Figure 3 , Figure 5 The implementation structure shown is more complex in the manufacturing process.

[0070] More preferably, refer to Figure 3 , Figure 5 As shown, the isolation plate 131 includes a body part 1311 with an inlet hole 130 and a fixing part 1312 connected to the body part 1311. The liquid control assembly 13 also has a sealing ring 133 disposed between the fixing part 1312 and the side wall of the liquid control chamber 102.

[0071] Further integration Figure 6 , Figure 7 As shown, in this specific embodiment, the main body 1311 is flat, the fixing part 1312 is hollow frame and integrally formed with the main body 1311, the fixing part 1312 has a mounting groove 1310 formed on its periphery, and the sealing ring 133 is sleeved in the mounting groove 1310. The sealing ring 133 is usually made of elastic material such as rubber.

[0072] Based on the above settings, refer to Figure 6 , Figure 7 As shown, during the assembly process of the automatic liquid replenishment module 10, the sealing ring 133 can be first fitted into the mounting groove 1310 on the periphery of the fixing part 1312, so that the liquid control component 13 forms a whole; then the liquid control component 13 is installed from the liquid storage chamber 101 side to the preset position, so that the sealing ring 133 and the side wall of the liquid control chamber 102 (i.e. the inner surface side of the liquid control chamber forming wall 112) form a sealing fit.

[0073] refer to Figure 7 As shown in the illustration, in this specific embodiment, the projection of the fixing part 1312 onto the plane containing the lower surface of the body part 1311 is located within the edge range of the lower surface, meaning that the body part 1311 has an edge protruding beyond the periphery of the fixing part 1312; a step is provided at the periphery of the junction of the liquid storage chamber 101 and the liquid control chamber 102. Thus, during the assembly of the automatic liquid replenishment module 10, when the edge of the body part 1311 of the isolation plate 131 overlaps with this step, it indicates that the liquid control component 13 has been installed in the appropriate position.

[0074] In some embodiments, after the hydraulic control assembly 13 is installed in place, the upper surface of the body portion 1311 of the isolation plate 131 is not higher than the bottom wall of other locations in the liquid storage cavity 101 (i.e., Figure 9 The first bottom wall 1010 shown in the figure is located on the plane, thus ensuring that the solution stored in the liquid storage chamber 101 can be utilized to the greatest extent.

[0075] Furthermore, in this invention, reference is made to... Figure 1As shown, the housing 100 of the present invention is also provided with a liquid filling hole 124. Specifically, in this embodiment, the liquid filling hole 124 is provided on the top cover 12 and is used to connect the liquid storage chamber 101 and the outside of the housing 100. The user can add solution (such as electrolyte) to the automatic liquid replenishment module 10 through the liquid filling hole 124. As a preferred embodiment of the present invention, the cross-sectional area of ​​the liquid control chamber 102 in the horizontal direction is smaller than the cross-sectional area of ​​the liquid storage chamber 101 in the horizontal direction. Combined with... Figure 1 , Figure 2 As shown, in this specific embodiment, the liquid control chamber forming wall 112 is connected to the bottom of the liquid storage chamber forming wall 111. The projection of the liquid control chamber forming wall 112 onto the plane where the bottom of the liquid storage chamber forming wall 111 is located only covers a local area of ​​the bottom of the liquid storage chamber forming wall 111. Since the liquid control chamber 102 is formed within the liquid control chamber forming wall 112 and the liquid storage chamber 101 is formed within the liquid storage chamber forming wall 111, the cross-sectional area of ​​the liquid control chamber 102 in the horizontal direction is smaller than the cross-sectional area of ​​the liquid storage chamber 101 in the horizontal direction. Based on this embodiment structure, when the solution in the liquid storage chamber 101 enters the liquid control chamber 102 to maintain the stability of the solution level in the liquid control chamber 102, the solution in the liquid storage chamber 101 has a slower liquid level drop rate, so the user does not need to frequently add liquid to the liquid storage chamber 101.

[0076] refer to Figure 8 , Figure 9 , Figure 10 As shown, in some preferred embodiments of the present invention, the housing 100 further has a filter chamber 104 for filtering gas, the filter chamber 104 being connected to the liquid storage chamber 101, so that the solution in the liquid storage chamber 101 can flow into the filter chamber 104.

[0077] The automatic liquid replenishment module 10 has a water level limiting mechanism that limits the minimum water level of the filter chamber 104. In addition, the top cover 12 of the box body 100 has an air collection chamber 105, an air inlet channel 121 and an air outlet channel 122 at a position corresponding to the filter chamber 104. The lower end air inlet hole 1220 of the air outlet channel 122 is lower than the liquid level of the minimum water level of the filter chamber 104, and the air inlet channel 121 is connected to the upper part of the air collection chamber 105.

[0078] Based on the configuration of the filter chamber 104 of this invention, the automatic liquid replenishment module 10 involved in this invention can not only realize the automatic liquid replenishment function, but also have the function of gas filtration. Specifically, the gas to be filtered enters the gas collecting chamber 105 from the air inlet channel 121. As more and more gas accumulates in the gas collecting chamber 105, it will enter the liquid surface of the filter chamber 104 under pressure, and then be discharged through the gas outlet channel 122, thereby completing the filtration.

[0079] Understandably, in Figure 8 , Figure 9 , Figure 10In the illustrated embodiment, since the filter chamber 104 is connected to the liquid storage chamber 101, the solution (e.g., electrolyte) in the liquid storage chamber 101 can directly enter the filter chamber 104 as a filtration medium. When the solution in the liquid storage chamber 101 is consumed, the water level limiting mechanism ensures that the filter chamber 101 has a minimum water level. At the same time, since the air inlet 1220 at the lower end of the air outlet channel 122 is lower than the liquid level of the minimum water level in the filter chamber 104, the gas entering the filter chamber 104 through the air inlet channel 121 will inevitably clean the solution in the filter chamber 104. This ensures that the filter chamber 104 will not fail to filter due to excessive consumption of the solution in the liquid storage chamber 101.

[0080] In the structure of the controlled atmosphere device involved in this invention, the gas generated by the electrolysis module 20 and discharged through the exhaust port of its housing 200 can enter the filter chamber 104 through the air inlet channel 121. The gas washed by water in the filter chamber 104 can be transported to the high oxygen space of the refrigerator to increase the oxygen concentration inside.

[0081] Furthermore, in Figure 8 , Figure 9 , Figure 10 In the embodiment shown, the water level limiting mechanism is a baffle 1111 located at the connection between the liquid storage chamber 101 and the filter chamber 104. The baffle 1111 extends upward from the bottom wall of the box 100, and the liquid storage chamber 101 and the filter chamber 104 are connected at the upper side of the baffle 1111.

[0082] In other words, a connecting port is formed on the upper side of the baffle 1111, through which the liquid storage chamber 101 and the filter chamber 104 are connected. The solution in the liquid storage chamber 101 can enter the filter chamber 104 through the connecting port, and the upper edge of the baffle 1111 limits the minimum water level of the filter chamber 104. When the solution in the liquid storage chamber 101 is consumed, the liquid level in the filter chamber 101 will not be lower than the upper edge of the baffle 1111.

[0083] More preferably, refer to Figure 8 , Figure 9 , Figure 10 As shown, in some specific embodiments, the top cover 12 has a cavity wall 123 defining the gas collecting chamber 105, the lower edge of which is lower than the plane of the lowest water level in the filter chamber 104. This design allows the solution in the filter chamber 104 to form a liquid seal on the lower end of the gas collecting chamber 105, thereby enabling the gas collected in the gas collecting chamber 105 to be filtered.

[0084] Furthermore, in the specific implementation process, as a preferred option, refer to Figure 9 , Figure 10As shown, the lower air inlet 1210 of the air inlet channel 121 is located inside the cavity wall 123 of the gas collecting chamber 105, and the position of the lower air inlet 1210 is higher than the lower edge of the cavity wall 123. This ensures that the gas entering the filter chamber 104 for water washing through the air inlet channel 121 is collected by the gas collecting chamber 105 to the greatest extent.

[0085] Further preferably, in order to minimize the risk of gas entering the filter chamber 104 for water washing through the air inlet channel 121 entering the liquid storage chamber 101, the air inlet channel 121 is located on the side of the gas collection chamber 105 away from the baffle 1111.

[0086] In some other embodiments of the invention, reference is made to Figure 9 , Figure 10 As shown, the plane of the bottom wall of the filter chamber 104 is lower than the plane of the bottom wall of the liquid storage chamber 101. As shown in the figure, the bottom wall of the liquid storage chamber 101 is the first bottom wall 1010, and the bottom wall of the filter chamber 104 is the second bottom wall 1040. Since the second bottom wall 1040 is lower than the first bottom wall 1010, it can be ensured that there is enough solution inside the filter chamber 104 to participate in the water washing action, thereby ensuring the water washing effect.

[0087] Furthermore, in some other embodiments of the present invention, reference is made to... Figure 15 , Figure 16 As shown, the liquid storage chamber 101 and the liquid control chamber 102 inside the box 100 can also be arranged side by side, instead of being arranged one above the other.

[0088] For more specific details, please refer to Figure 15 As shown, in this specific embodiment, the liquid storage chamber 101 and the liquid control chamber 102 are arranged side by side and separated by an isolation plate 131. The solution in the liquid storage chamber 101 can enter the liquid control chamber 102 through the inlet hole 130 on the isolation plate 131. The liquid control pipe 132 is a straight pipe, with its first end (corresponding to the lower end in the figure) extending into the liquid control chamber 102. The liquid control pipe 132 passes through the top wall of the liquid control chamber forming wall 112, and its second end (corresponding to the upper end in the figure) extends to the outside of the liquid control chamber 102. As shown in the figure, the lumen of the liquid control pipe 132 near its first end is higher than the highest liquid level line of the liquid storage chamber 101. Based on Figure 15 The illustrated structure can also achieve automatic fluid replenishment, and its principle is the same as... Figure 4 , Figure 5 The embodiments shown are basically the same, and will not be described in detail here.

[0089] refer to Figure 16 As shown, this specific embodiment is similar to Figure 15The difference in the illustrated embodiment is that the hydraulic control pipe 132 is a bent pipe, which includes a first vertical pipe having a first end, a second vertical pipe having a second end, and a horizontal pipe connecting the first vertical pipe and the second vertical pipe. The lumen of the section containing the horizontal pipe is higher than the highest liquid level line of the liquid storage chamber 101.

[0090] exist Figure 16 In the specific implementation of the illustrated embodiment, the hydraulic control pipe 132 can pass through the side wall of the hydraulic control cavity forming wall 112 and connect to the outside. Furthermore, Figure 16 The liquid control chamber 102 in the illustrated embodiment is relative to Figure 15 The liquid control chamber 102 in the illustrated embodiment has a portion for mounting a horizontal tube that protrudes upward.

[0091] Understandable. Figure 15 , Figure 16 The main purpose of the embodiment shown is to demonstrate that the liquid storage chamber 101 and the liquid control chamber 102 can also be arranged side by side. More detailed designs can be made based on this, and these adjustments should all fall within the protection scope of this invention.

[0092] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic fluid replenishment module, characterized in that, The device includes a housing (100), which has a liquid storage chamber (101), a liquid control chamber (102), and a liquid control assembly (13). The liquid control assembly (13) has an isolation plate (131) and a liquid control tube (132). The isolation plate (131) separates the liquid storage chamber (101) from the liquid control chamber (102) and has an inlet hole (130) that connects the liquid storage chamber (101) and the liquid control chamber (102). The first end of the liquid control tube (132) extends into the liquid control chamber (102), and the second end of the liquid control tube (132) extends into the outside of the liquid control chamber (102). At least a portion of the lumen of the liquid control tube (132) is higher than the highest liquid level line of the liquid storage chamber (101).

2. The automatic fluid replenishment module according to claim 1, characterized in that, The liquid control chamber (102) is located below the liquid storage chamber (101).

3. The automatic fluid replenishment module according to claim 2, characterized in that, The second end of the liquid control tube (132) extends to the upper part of the highest liquid level line of the liquid storage chamber (101).

4. The automatic fluid replenishment module according to claim 3, characterized in that, The housing (100) has a top cover (12) at the top, and the lower surface of the top cover (12) is recessed upward to form an air cavity (103), and the second end of the hydraulic control tube (132) extends into the air cavity (103).

5. The automatic fluid replenishment module according to claim 1, characterized in that, The diameter of the inlet hole (130) gradually decreases from the liquid storage chamber (101) toward the liquid control chamber (102).

6. The automatic fluid replenishment module according to claim 2, characterized in that, The isolation plate (131) is located at the bottom of the liquid storage cavity (101), the upper side of the isolation plate (131) is the bottom wall of the liquid storage cavity (101), and the lower side of the isolation plate (131) is the top wall of the liquid control cavity (102).

7. The automatic fluid replenishment module according to claim 2, characterized in that, The hydraulic control tube (132) is fixed to the isolation plate (131).

8. The automatic fluid replenishment module according to claim 1, characterized in that, The isolation plate (131) includes a body part (1311) with the liquid inlet hole (130) and a fixing part (1312) connected to the body part (1311). The liquid control assembly (13) also has a sealing ring (133) disposed between the fixing part (1312) and the side wall of the liquid control chamber (102).

9. The automatic fluid replenishment module according to claim 1, characterized in that, The box (100) is provided with a liquid inlet (124) that connects the liquid storage chamber (101) and the outside of the box (100).

10. The automatic fluid replenishment module according to claim 1, characterized in that, The cross-sectional area of ​​the liquid control chamber (102) in the horizontal direction is smaller than the cross-sectional area of ​​the liquid storage chamber (101) in the horizontal direction.

11. The automatic fluid replenishment module according to any one of claims 1-10, characterized in that, The housing (100) also has a filter chamber (104) for filtering gas, which is in communication with the liquid storage chamber (101).

12. The automatic fluid replenishment module according to claim 11, characterized in that, The automatic liquid replenishment module has a water level limiting mechanism that limits the minimum water level of the filter chamber (101); the top of the box body (100) is provided with a top cover (12), the top cover (12) has an air collection chamber (105), an air inlet channel (121) and an air outlet channel (122) at a position corresponding to the filter chamber (104), the lower end air inlet hole (1210) of the air outlet channel (122) is lower than the liquid level of the minimum water level of the filter chamber (104), and the air inlet channel (121) is connected to the upper part of the air collection chamber (105).

13. The automatic fluid replenishment module according to claim 12, characterized in that, The water level limiting mechanism is a baffle (1111) disposed at the connection position between the liquid storage chamber (101) and the filter chamber (104). The baffle (1111) extends upward from the bottom wall of the box body (100). The liquid storage chamber (101) and the filter chamber (104) are connected at the upper side of the baffle (1111). The top cover (12) has a cavity wall (123) that defines the gas collection chamber (105). The lower edge of the cavity wall (123) is lower than the plane where the lowest water level of the filter chamber (104) is located. The plane where the bottom wall of the filter chamber (104) is located is lower than the plane where the bottom wall of the liquid storage chamber (101) is located.

14. A controlled atmosphere device, characterized in that, The device includes an electrolysis module (20) for preparing oxygen-controlled gas, the electrolysis module (20) including an electrolyte container and an electrode; the modified atmosphere device also includes an automatic liquid replenishment module as described in any one of claims 1-13, the housing (100) having a liquid outlet (110) at the bottom of the liquid control chamber (102), the automatic liquid replenishment module being connected to the electrolyte container through the liquid outlet (110), and the first end of the liquid control tube (132) being not lower than the highest edge of the electrode.

15. A refrigerator, comprising a cabinet, characterized in that, The refrigerator also has an automatic liquid replenishment module as described in any one of claims 1-13 or a controlled atmosphere device as described in claim 14.

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