Refrigerator air conditioning device, fresh-keeping drawer and refrigerator

Abstract

The invention discloses a refrigerator air conditioning device, a fresh-keeping drawer and a refrigerator, the refrigerator air conditioning device comprises a base, a core rod and a power supply assembly, the core rod comprises a conductive column core and a powder mixture, one end of the conductive column core is connected to the base, and the powder mixture is arranged on the portion, extending out of the base, of the conductive column core; the power supply assembly is electrically connected with the conductive column core and is used for controlling power-on / power-off of the core rod; wherein the powder mixture comprises activated carbon powder, iron powder and electrolyte which are arranged in a mixed mode, the activated carbon powder is used for adsorbing moisture, and the electrolyte can be dissolved in the moisture adsorbed by the activated carbon powder and generate alkaline electrolyte, so that the iron powder is located in the alkaline electrolyte environment and chemically reacts with the alkaline electrolyte and oxygen, and ferric hydroxide is generated. Oxygen can be consumed spontaneously, the active carbon powder is forcibly subjected to a chemical reaction by electrifying the core rod, the purpose of reducing the oxygen content to generate carbon dioxide is achieved, and therefore the continuous and efficient oxygen-reducing and fresh-keeping functions can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to refrigerator freshness preservation, and particularly relates to a refrigerator gas conditioning device, a freshness preservation drawer and a refrigerator. Background Art

[0002] The controlled atmosphere technology is one of the important technologies in food freshness preservation. Its principle lies in changing the proportion of the air components in a chamber or space, thereby inhibiting the physiological change process of food materials. Among them, oxygen plays a crucial role in this change process. Therefore, it is particularly important to control the oxygen content in the space.

[0003] Currently, the main means of controlling oxygen in the existing refrigerator freshness preservation include methods such as nitrogen filling, oxygen separation membranes, and deoxidizers. Among them, the deoxidizer uses a chemical method, mostly using substances such as iron powder, enzymes, and ascorbic acid that are easy to react with free oxygen. Its use method is convenient, the cost is low, and the use effect is good, so it has been widely used. However, in the actual use process of the above-mentioned deoxidizer, there is a short service life and it is only for one-time use in a small space. Obviously, the oxygen reduction method of the above-mentioned deoxidizer cannot meet the long-term use requirements of the refrigerator freshness preservation chamber, the refrigerating chamber, etc. under controllable conditions. Summary of the Invention

[0004] In view of this, it is necessary to provide a refrigerator gas conditioning device, a freshness preservation drawer and a refrigerator for solving the above technical problems.

[0005] A refrigerator gas conditioning device, the refrigerator gas conditioning device includes:

[0006] A base;

[0007] A mandrel, including a conductive column core and a powder mixture, one end of the conductive column core is connected to the base, and the powder mixture is arranged on the part of the conductive column core extending from the base;

[0008] A power supply component, electrically connected to the conductive column core, for controlling the power on / off of the mandrel;

[0009] Wherein, the powder mixture includes activated carbon powder, iron powder and electrolyte mixedly arranged; the activated carbon powder is used for adsorbing moisture, and the electrolyte can be dissolved in the moisture adsorbed by the activated carbon powder and generate an alkaline electrolyte solution, so that the iron powder is in the alkaline electrolyte solution environment and reacts chemically with the alkaline electrolyte solution and oxygen to generate iron hydroxide.

[0010] It can be understood that through the above structural settings, when the controlled atmosphere device of the refrigerator is in use, it can utilize the characteristic of iron powder being oxidized in an alkaline electrolyte to achieve the first spontaneous reaction of the mandrel. During this process, on the one hand, the water absorption characteristic of activated carbon powder can be utilized to reduce the humidity of the environment where the controlled atmosphere device of the refrigerator is located, which can further promote the freshness preservation effect that the controlled atmosphere device of the refrigerator can achieve. On the other hand, the physical characteristic that iron hydroxide is reddish-brown can be utilized, enabling users to directly observe with the naked eye the first oxygen-reducing reaction that the controlled atmosphere device of the refrigerator is spontaneously undergoing, which has the effect of improving the usage experience of the controlled atmosphere device of the refrigerator. Then, by energizing the mandrel, the forced chemical reaction of the activated carbon powder is realized to achieve the purpose of reducing the oxygen content and generating carbon dioxide. In this way, the controlled atmosphere device of the refrigerator can have a continuous and efficient oxygen-reducing freshness preservation function, so as to be applicable to the assembly and application in the fresh-keeping compartment and the refrigerating compartment of the refrigerator.

[0011] In one embodiment, the electrolyte accounts for 5-9% in the powder mixture, and the iron powder accounts for 30-45% in the powder mixture.

[0012] In one embodiment, the powder mixture further includes an adhesive, and the adhesive is mixed with the activated carbon powder, the iron powder, and the electrolyte and is compacted and formed on the conductive column core.

[0013] It can be understood that using an adhesive to compact and form the activated carbon powder, iron powder, and electrolyte onto the conductive column core can facilitate the production and manufacturing of the mandrel.

[0014] In one embodiment, the power supply assembly includes a battery and a high-voltage generator, and the battery is electrically connected to the conductive column core through the high-voltage generator for providing a high-voltage electric field to the mandrel.

[0015] Among them, the activated carbon powder can react with the oxygen in the environment where the mandrel is located under the high-voltage electric field to generate carbon dioxide.

[0016] It can be understood that by using the conversion of the boosting circuit of the high-voltage generator, the controlled atmosphere device of the refrigerator can meet the usage requirements for the reaction of the activated carbon powder with oxygen with a low-voltage battery. In this way, the controlled atmosphere device of the refrigerator can be used as an independent module, thus facilitating the subsequent assembly and application of the controlled atmosphere device of the refrigerator.

[0017] In one embodiment, the base is configured as a ceramic base.

[0018] Among them, the conductive column core and the ceramic base are detachably connected by fixing screws, and the conductive column core can be electrically connected to the power supply assembly through the fixing screws.

[0019] It can be understood that on the one hand, the fixing screw can fix the conductive column core to the ceramic base, and on the other hand, it can be used as a conduction medium for the electrical connection between the conductive column core and the power supply component, so that the fixing screw can serve two purposes, which is convenient for the assembly and energization of the core rod.

[0020] In one embodiment, the powder mixture is disposed on the outer periphery of the conductive column core;

[0021] Wherein, a plurality of pleated portions are formed on the powder mixture, and the plurality of pleated portions are disposed on the outer periphery of the core rod and are sequentially connected end to end along the circumferential direction of the core rod.

[0022] It can be understood that the pleated portions formed on the powder mixture can increase the outer surface area of the powder mixture, so that the reaction amount of the core rod during the oxygen reduction reaction can be increased, and the role of further promoting the freshness preservation of the refrigerator air conditioning device can be played.

[0023] Using multiple core rods to simultaneously play the role of oxygen reduction and freshness preservation can improve the freshness preservation effect of the refrigerator air conditioning device.

[0024] In one embodiment, the refrigerator air conditioning device further includes a protective cover, the protective cover is installed on the base, and the protective cover encloses to form a receiving cavity for receiving the core rod;

[0025] Wherein, the protective cover is provided with ventilation holes, and the ventilation holes are communicated with the receiving cavity.

[0026] It can be understood that the protective cover can protect the assembly of the core rod on the base, prevent the assembly of the core rod on the base from being interfered by external factors, and thus ensure the stability of the assembly of the core rod on the base.

[0027] In one embodiment, the refrigerator air conditioning device further includes a support hanger, and both the power supply component and the base are installed on the support hanger;

[0028] Wherein, the support hanger has a mounting portion, and the support hanger can be installed and fixed through the mounting portion.

[0029] It can be understood that through the above structural setting of the support hanger, the refrigerator air conditioning device can be assembled with the support hanger as the installation basis, so as to realize the modularization of the overall structure of the refrigerator air conditioning device.

[0030] This application also claims protection for a fresh-keeping drawer, including the refrigerator air conditioning device described above.

[0031] This application also claims protection for a refrigerator, including the refrigerator air conditioning device described above.

[0032] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0033] The present application requests protection for a refrigerator controlled atmosphere device, a fresh-keeping drawer, and a refrigerator. When in use, the refrigerator controlled atmosphere device can utilize the characteristic of iron powder being oxidized in an alkaline electrolyte to achieve the first spontaneous reaction of the mandrel. During this process, on the one hand, the water absorption characteristic of activated carbon powder can be utilized to reduce the humidity of the environment where the refrigerator controlled atmosphere device is located, which can further promote the fresh-keeping effect that the refrigerator controlled atmosphere device can achieve. On the other hand, the physical characteristic that iron hydroxide is reddish-brown can be utilized, enabling users to directly observe with the naked eye the first oxygen-reducing reaction that the refrigerator controlled atmosphere device is spontaneously undergoing, which has the effect of improving the user experience of the refrigerator controlled atmosphere device. Then, by energizing the mandrel, the forced chemical reaction of the activated carbon powder is realized to achieve the purpose of reducing the oxygen content and generating carbon dioxide. In this way, the refrigerator controlled atmosphere device can have a continuous and efficient oxygen-reducing fresh-keeping function, so as to be applicable to the assembly and application in the fresh-keeping compartment and the refrigerating compartment of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic structural diagram of a refrigerator controlled atmosphere device provided by an embodiment of the present application.

[0036] Figure 2 It is a sectional view of a refrigerator controlled atmosphere device provided by an embodiment of the present application.

[0037] Figure 3 For Figure 2 the enlarged view of part P in

[0038] Figure 4 It is a schematic structural diagram of the mandrel in the present application.

[0039] Reference numerals: 100, refrigerator controlled atmosphere device; 10, base; 11, fixing screw; 111, screw head; 12, through hole; 20, mandrel; 21, conductive column core; 211, threaded hole; 22, powder mixture; 221, wrinkled part; 30, power supply assembly; 310, power cord bundle; 31, battery; 32, high-voltage generator; 40, protective cover; 41, ventilation hole; 50, support hanger; 51, installation part; 52, bending plate; 521, groove; 101, accommodating cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that when an element is referred to as being "provided on" another element, it can be directly provided on the other element or there may also be an intermediate element. When an element is considered to be "provided on" another element, it can be directly provided on the other element or there may be an intermediate element at the same time. When an element is considered to be "fixed to" another element, it can be directly fixed to the other element or there may be an intermediate element at the same time.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] The refrigerator gas adjustment device 100 claimed in this application is applied to a refrigerator and can consume oxygen chemically, thereby meeting the usage requirements of refrigerator freshness preservation.

[0044] As Figures 1 to 4 shown, the refrigerator gas adjustment device 100 provided by an embodiment of this application includes a base 10, a core rod 20, and a power supply assembly 30. The core rod 20 includes a conductive column core 21 and a powder mixture 22. One end of the conductive column core 21 is connected to the base 10, and the powder mixture 22 is arranged on the part of the conductive column core 21 extending from the base 10; the power supply assembly 30 is electrically connected to the conductive column core 21 and is used to control the power on / off of the core rod 20; wherein, the powder mixture 22 includes activated carbon powder (not shown in the figure), iron powder (not shown in the figure), and electrolyte (not shown in the figure) which are mixed and arranged. The activated carbon powder is used to adsorb moisture, and the electrolyte can dissolve in the moisture adsorbed by the activated carbon powder and generate an alkaline electrolyte solution, so that the iron powder is in an alkaline electrolyte environment and reacts chemically with the alkaline electrolyte solution and oxygen to generate iron hydroxide.

[0045] As can be seen from the above, when the controlled atmosphere device 100 of the refrigerator of the present application is in use, it can utilize the characteristic that iron powder is oxidized in an alkaline electrolyte to achieve the first-layer reaction of the mandrel 20 spontaneously. In this process, on the one hand, the water absorption characteristic of activated carbon powder can be utilized to reduce the humidity of the environment where the controlled atmosphere device 100 of the refrigerator is located, which can further promote the freshness preservation effect that the controlled atmosphere device 100 can achieve. On the other hand, the physical characteristic that iron hydroxide is reddish-brown can also be utilized, so that users can directly observe with the naked eye the first-layer reaction for oxygen reduction that the controlled atmosphere device 100 of the refrigerator is spontaneously carrying out, which has the effect of improving the usage experience of the controlled atmosphere device 100 of the refrigerator; then, the energization of the mandrel 20 is utilized to force the chemical reaction of the activated carbon powder to achieve the purpose of reducing the oxygen content and generating carbon dioxide. In this way, the controlled atmosphere device 100 of the refrigerator can have a continuous and efficient oxygen reduction and freshness preservation function, so as to be applicable to the assembly and application in the freshness preservation compartment and the refrigerating compartment of the refrigerator.

[0046] In the present application, the powder mixture 22 further includes an adhesive. The adhesive is mixed with the activated carbon powder, iron powder, and electrolyte, and is compacted and formed on the conductive column core 21. In this way, the powder mixture 22 can be made into a whole and installed on the conductive column core 21, which is convenient for the production and manufacture of the mandrel 20.

[0047] It should be noted that the activated carbon powder, iron powder, and electrolyte in the powder mixture 22 of the present application are fully mixed, so that at least part of the iron powder in the mandrel 20 can be in an alkaline electrolyte; among them, the electrolyte accounts for 5-9% in the powder mixture 22, the iron powder accounts for 30-45% in the powder mixture 22, and the remaining proportion can be filled with activated carbon powder and adhesive. Of course, the specific content relationship among the activated carbon powder, iron powder, and electrolyte in the above powder mixture 22 can be specifically designed according to the usage requirements of the two-layer chemical reactions required by the mandrel 20, and will not be elaborated here.

[0048] As Figure 2 、 Figure 3 shown, in an embodiment, the base 10 is configured as a ceramic base; the conductive column core 21 and the ceramic base are detachably connected by a fixing screw 11, and moreover, the conductive column core 21 can be electrically connected to the power supply assembly 30 through the fixing screw 11. That is to say, on the one hand, the fixing screw 11 can realize the detachable connection of the mandrel 20 on the ceramic base, which is convenient for users to replace the mandrel 20 subsequently. On the other hand, it also serves as a conduction medium for the electrical connection between the conductive column core 21 and the power supply assembly 30, and is convenient for the electrical connection between the power supply assembly 30 and the mandrel 20.

[0049] In this embodiment, the screw head 111 of the fixing screw 11 is first aligned with the power cord bundle 310 used for electrically connecting with the mandrel 20 on the power supply assembly 30 and placed into the corresponding through hole 12 on the ceramic base. Then, the mandrel 20 is manually driven to abut against the ceramic base. Next, a screwdriver is used to screw the fixing screw 11 to drive the screw head 111 of the fixing screw 11 to be screwed onto the conductive post core 21, so as to finally fix the mandrel 20 to the ceramic base by the fixing screw 11 and simultaneously realize the electrical connection between the mandrel 20 and the power supply assembly 30. Here, a threaded hole 211 matching the screw head 111 of the fixing screw 11 is provided on the conductive post core 21. It should be noted that the conductive post core 21 in this embodiment can be specifically configured as a graphite rod, a conductive copper post, an aluminum post, etc., which will not be elaborated here.

[0050] As Figure 3 , Figure 4 shown, in one embodiment, the powder mixture 22 is disposed on the outer periphery of the conductive post core 21; wherein, a plurality of pleated portions 221 are formed on the powder mixture 22, and the plurality of pleated portions 221 are disposed on the outer periphery of the mandrel 20 and are sequentially connected end to end along the circumferential direction of the mandrel 20. Thus, the mandrel 20 can utilize the pleated portions 221 on the powder mixture 22 to increase the outer surface area of the powder mixture 22, so as to increase the reaction amount when the mandrel 20 is applied to the oxygen reduction reaction, and further promote the freshness preservation function that the refrigerator controlled atmosphere device 100 can achieve.

[0051] As Figure 4 shown, in this embodiment, the plurality of pleated portions 221 on the mandrel 20 are annular, the cross-section of each pleated portion 221 is triangular, and moreover, the length of each pleated portion 221 can be consistent with the overall length of the powder mixture 22, so as to further increase the outer surface area of the powder mixture 22. It can be understood that in other embodiments, the pleated portions 221 can also be square or other irregular shapes, which will not be elaborated here.

[0052] In the present application, in an alkaline electrolyte, iron powder can be oxidized by oxygen in the environment where the mandrel 20 is located to generate iron hydroxide. Thus, the physical property that iron hydroxide is reddish-brown can be utilized, so that the user can directly observe with the naked eye the first layer of oxygen reduction reaction that the refrigerator controlled atmosphere device 100 is spontaneously undergoing, which has the effect of improving the usage experience of the refrigerator controlled atmosphere device 100.

[0053] It can be understood that when iron powder is oxidized by oxygen in an alkaline electrolyte and produces an iron hydroxide oxidation product, the iron hydroxide will detach from the powder mixture. Therefore, in this application, the mandrel 20 is installed on the base 10 in an inverted form, so that the iron hydroxide oxidation product can automatically fall under the action of gravity. On the one hand, this can keep the iron hydroxide away from the energized part of the refrigerator controlled atmosphere device 100 to avoid interruption of the second-layer chemical reaction between the activated carbon powder and oxygen on the mandrel 20 due to short circuit; on the other hand, the remaining iron powder in the powder mixture 22 can continue to be oxidized by oxygen, enabling the mandrel 20 to continuously carry out the first-layer reaction.

[0054] In this application, the electrolyte is an alkaline electrolyte, so that when the alkaline electrolyte dissolves in the water adsorbed by the activated carbon powder, an alkaline electrolyte can be generated. Specifically, the electrolyte can be configured as sodium carbonate powder. That is, the above-mentioned alkaline electrolyte can specifically be a sodium carbonate solution, and this sodium carbonate solution plays a catalytic role in the oxidation of iron powder. It can be understood that in other embodiments, the above-mentioned electrolyte can also be potassium carbonate, potassium hydroxide, potassium bicarbonate, etc., which will not be elaborated here.

[0055] It should be noted that in a humid environment of the powder mixture 22 of this application, the iron in the iron powder and the carbon in the activated carbon powder in the powder mixture 22 constitute two electrodes of the anode and the cathode. Iron in the iron powder, as an active metal, loses electrons and is oxidized at the anode: Fe → Fe 2+ + 2e - ; in the alkaline environment of the sodium carbonate solution, OH- is generated by hydrolysis in the sodium carbonate solution, and Fe 2+ will quickly combine with OH- to form iron hydroxide precipitate: Fe 2+ + 2OH- → Fe(OH)2; due to the presence of oxygen in the environment where the mandrel 20 is located, Fe(OH)2 will be further oxidized by oxygen to iron hydroxide: Fe(OH)2 + O2 + 2H2O → 4Fe(OH)3↓. At the same time, the carbon in the activated carbon powder acts as an inert electrode, promoting the reduction reaction of oxygen (oxygen absorption corrosion) at the cathode: O2 + 2H2O + 4e - → 4OH-.

[0056] As can be seen from the above, the oxygen absorption corrosion reaction of the iron powder in the powder mixture 22 of this application is: 4Fe + 3O2 + 6H2O → 4Fe(OH)3↓, and finally a reddish-brown iron hydroxide precipitate is formed. In this process, the sodium carbonate solution plays a role in accelerating the electrochemical corrosion of iron. After the sodium carbonate dissolves in water, it can provide conductive Na + and CO3 2- ions to increase the electrolyte concentration of the sodium carbonate solution. Among them, the hydrolysis of CO3 2- makes the sodium carbonate solution alkaline: To promote the precipitation of the oxidation product of iron powder in the form of hydroxide rather than directly reacting with CO3 2- to form iron carbonate directly.

[0057] As Figure 1 , Figure 2 shown, in one embodiment, the power supply assembly 30 includes a battery 31 and a high-voltage generator 32. The battery 31 is electrically connected to the conductive column core 21 through the high-voltage generator 32 for providing a high-voltage electric field to the mandrel 20. Among them, the activated carbon powder can react with the oxygen in the environment where the mandrel 20 is located under the high-voltage electric field to generate carbon dioxide. That is to say, this embodiment can utilize the conversion of the boosting circuit of the high-voltage generator 32, so that the refrigerator gas conditioning device 100 can meet the usage requirements of the reaction between the activated carbon powder and oxygen with a low-voltage battery 31. In this way, the refrigerator gas conditioning device 100 can be used as an independent module, thus facilitating the subsequent assembly and application of the refrigerator gas conditioning device 100. Here, the high-voltage generator 32 can boost the voltage increased by the battery 31 and convert it into direct current with a voltage of 1-2 kv to supply power to the mandrel 20. It can be understood that in other embodiments, a power cord bundle can also be electrically connected to the high-voltage generator 32 to provide current to the high-voltage generator 32. For this purpose, an external power supply also needs to be configured to supply power to the refrigerator gas conditioning device. It should be noted that the refrigerator gas conditioning device 100 of the present application also integrates a control switch (not shown in the figure). The control switch is used to control the connection / disconnection of the power supply circuit of the power supply assembly 30 to the mandrel 20, so that the user can decide whether to start the second-layer reaction of the mandrel 20 according to the needs.

[0058] It should be noted that under the high-voltage electric field, the activated carbon powder in the powder mixture 22 of the present application will react with oxygen to generate carbon dioxide: C + O2 → CO2.

[0059] As Figure 1 , Figure 2 shown, in one embodiment, the refrigerator gas conditioning device 100 also has a protective cover 40. The protective cover 40 is installed on the base 10. The protective cover 40 encloses to form a receiving cavity 101 for receiving the mandrel 20. Among them, the protective cover 40 is provided with ventilation holes 41, and the ventilation holes 41 are communicated with the receiving cavity 101. The base 10, the mandrel 20 and the protective cover 40 together form a reactor unit, so that the protective cover 40 can play a role in protecting the assembly of the mandrel 20 on the base 10, preventing the assembly of the mandrel 20 on the base 10 from being interfered by external factors, and thus ensuring the stability of the assembly of the mandrel 20 on the base 10. Here, the number of the ventilation holes 41 is configured to be multiple, and the multiple ventilation holes 41 are arranged at intervals in sequence along the length direction and the circumferential direction of the protective cover 40.

[0060] As Figure 1 ,Figure 2 As shown, in one embodiment, the controlled atmosphere device 100 of the refrigerator further includes a support hanger 50, and the power supply assembly 30 and the base 10 are both installed on the support hanger 50; wherein, the support hanger 50 has an installation part 51, and the support hanger 50 can be installed and fixed through the installation part 51. That is to say, the controlled atmosphere device 100 of the present application can be assembled with the support hanger 50 as the installation basis, so as to realize the modularization of the overall structure of the controlled atmosphere device 100 of the refrigerator, so that the controlled atmosphere device 100 of the refrigerator can be assembled in the refrigerator according to the usage requirements, and it is convenient to replace the mandrel 20 in the controlled atmosphere device 100 later. Here, the installation part 51 can be configured as a hook, so that the controlled atmosphere device 100 of the refrigerator can be assembled to the target object in a hanging manner; it can be understood that in other embodiments, the installation part 51 can also be a suction cup, so that the controlled atmosphere device 100 of the refrigerator can be assembled to the target object in an adsorption manner, which will not be elaborated here.

[0061] As Figure 1 , Figure 2 As shown, in this embodiment, a bending plate 52 is formed on the support hanger 50, the high-voltage generator 32 is installed on the bending plate 52, and part of the protective cover 40 is inserted into the groove 521 formed on the bending plate 52, and the assembly of the protective cover 40 on the bending plate 52 is realized; wherein, one end of the protective cover 40 away from the bending plate 52 is inserted and matched with the base 10, and the protective cover 40 and the base 10 are connected in a tight fit manner, and the connection between the protective cover 40 and the base 10 is realized, so that the support hanger 50 can support the base 10 through the protective cover 40, so that the controlled atmosphere device 100 of the refrigerator can use the groove 521 on the support hanger 50 to catch the iron hydroxide precipitate falling from the mandrel 20. It can be understood that in other embodiments, the protective cover 40 and the base 10 can be connected by threads, or the base 10 is fixed to the support hanger 50, the protective cover 40 is fixed to the base 10, and the protective cover 40 is used to catch the iron hydroxide precipitate falling from the mandrel 20.

[0062] It should be noted that since the controlled atmosphere device 100 of the present application is designed as an independent module, the controlled atmosphere device 100 of the refrigerator can be used as an independent selling unit, and users can select and match the controlled atmosphere device 100 of the refrigerator in the refrigerator according to their usage requirements, which can further improve the user experience of the controlled atmosphere device 100 of the refrigerator.

[0063] The present application also provides a fresh-keeping drawer, including the controlled atmosphere device 100 of the refrigerator described above. Here, the fresh-keeping drawer can specifically be the fresh-keeping drawer of the fresh-keeping compartment of the refrigerator.

[0064] The present application also provides a refrigerator, which includes the above-mentioned refrigerator air conditioning device 100, and specifically, the refrigerator air conditioning device 100 can be installed in the refrigerating inner liner of the refrigerator.

[0065] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0066] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as within the scope of the essential spirit of the present invention, appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present invention.

Claims

1. A refrigerator controlled atmosphere device, characterized in that, The refrigerator controlled atmosphere device (100) includes: A base (10); A mandrel (20), including a conductive column core (21) and a powder mixture (22). One end of the conductive column core (21) is connected to the base (10), and the powder mixture (22) is disposed on the part of the conductive column core (21) extending from the base (10); A power supply assembly (30), electrically connected to the conductive column core (21), for controlling the power-on / off of the mandrel (20); Wherein, the powder mixture (22) includes activated carbon powder, iron powder and electrolyte mixed together. The activated carbon powder is used to adsorb moisture, and the electrolyte can dissolve in the moisture adsorbed by the activated carbon powder to generate an alkaline electrolyte solution, so that the iron powder is in the environment of the alkaline electrolyte solution and reacts chemically with the alkaline electrolyte solution and oxygen to generate iron hydroxide.

2. The refrigerator gas conditioning device according to claim 1, characterized in that, The proportion of the electrolyte in the powder mixture (22) is 5-9%, and the proportion of the iron powder in the powder mixture (22) is 30-45%.

3. The refrigerator controlled atmosphere device according to claim 1, characterized in that, The powder mixture further includes an adhesive, which is mixed with the activated carbon powder, the iron powder and the electrolyte and is compacted and formed on the conductive column core (21).

4. The refrigerator gas conditioning device according to claim 1, characterized in that, The power supply assembly (30) includes a battery (31) and a high-voltage generator (32). The battery (31) is electrically connected to the conductive column core (21) through the high-voltage generator (32) to provide a high-voltage electric field for the mandrel (20); Wherein, the activated carbon powder can chemically react with oxygen in the environment where the mandrel (20) is located under the high-voltage electric field to generate carbon dioxide.

5. The refrigerator gas conditioning device according to claim 1, characterized in that, The base (10) is configured as a ceramic base; Wherein, the conductive column core (21) is detachably connected to the ceramic base through a fixing screw (11), and the conductive column core (21) can be electrically connected to the power supply assembly (30) through the fixing screw (11).

6. The refrigerator air conditioning device according to claim 1, characterized in that, The powder mixture (22) is disposed on the outer periphery of the conductive column core (21); Wherein, a plurality of corrugated portions (221) are formed on the powder mixture (22). The plurality of corrugated portions (221) are disposed on the outer periphery of the mandrel (20) and are sequentially connected end to end along the circumferential direction of the mandrel (20).

7. The refrigerator gas conditioning device according to claim 1, characterized in that, The refrigerator controlled atmosphere device (100) further includes a protective cover (40). The protective cover (40) is installed on the base (10). The protective cover (40) encloses a receiving cavity (101) for receiving the mandrel (20); Wherein, a ventilation hole (41) is formed on the protective cover (40), and the ventilation hole (41) is communicated with the receiving cavity (101).

8. The refrigerator gas conditioning device according to claim 1, wherein, The refrigerator controlled atmosphere device (100) further includes a support hanger (50). The power supply assembly (30) and the base (10) are both installed on the support hanger (50); Wherein, the support hanger (50) has an installation portion (51), and the support hanger (50) can be installed and fixed through the installation portion (51).

9. A fresh-keeping drawer, characterized in that, Comprising the refrigerator controlled atmosphere device (100) according to any one of claims 1 to 8.

10. A refrigerator, characterized in that, Comprising the refrigerator controlled atmosphere device (100) according to any one of claims 1 to 8.

Images