Fresh-keeping chamber, refrigerator and control method

Abstract

The application discloses a fresh-keeping compartment, a refrigerator and a control method, which comprise a first compartment and a second compartment arranged adjacently; an ozone generating device is arranged in the first compartment; a gas-permeable film assembly is arranged on a partition plate adjacent to the first compartment and the second compartment; a first through hole is arranged on a side wall of the first compartment corresponding to the gas-permeable film assembly; and a second through hole is arranged on a side wall of the second compartment corresponding to the gas-permeable film assembly. The ozone generating device can decompose ethylene gas in the first compartment and generate carbon dioxide gas, and then the carbon dioxide gas can be transmitted to the second compartment through the gas-permeable film assembly, so that the fresh-keeping compartment can reasonably use the carbon dioxide gas generated by decomposing the ethylene gas by the ozone generating device, and the fresh-keeping compartment can simultaneously adopt an ethylene-removing fresh-keeping mode and a high-concentration carbon dioxide fresh-keeping mode to store fruits and vegetables.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and more particularly to a fresh food compartment, a refrigerator, and a control method. Background Technology

[0002] Fruits and vegetables remain living organisms after harvesting, and respiration and metabolism are their main physiological activities. During the post-harvest metabolism, fruits and vegetables produce a large amount of ethylene gas, which accelerates the ripening of fruits and vegetables. Ethylene can also diffuse, causing other fruits and vegetables in the same space to ripen faster, resulting in the peel turning brown, the flesh softening, and eventually aging and rotting.

[0003] Ozone, as a highly efficient and safe disinfectant, is widely used in the food and fruit and vegetable preservation industries. Compared with chemical methods, ozone has significant advantages such as high activity, no residue, high permeability, and low cost. Specifically, ozone can rapidly oxidize and decompose ethylene gas into carbon dioxide and water, thereby slowing down the metabolism of fruits and vegetables and reducing their ripening rate.

[0004] Preservation methods for harvested fruits and vegetables can be divided into ethylene removal preservation and carbon dioxide preservation. Fruits and vegetables preserved using ethylene removal preservation are further divided into climacteric and non-climacteric varieties, with different methods suited to different types. Ethylene removal preservation requires controlling the concentration of ethylene gas to slow down the ripening process and achieve long-term preservation. Carbon dioxide preservation, on the other hand, places fruits and vegetables in a high-concentration carbon dioxide environment to slow down ripening and achieve long-term preservation.

[0005] To address the aforementioned problems, this invention provides a new fresh-keeping compartment and refrigerator that allows for the simultaneous use of ethylene removal and carbon dioxide preservation methods to store fruits and vegetables. Summary of the Invention

[0006] In view of this, the present invention provides a fresh-keeping compartment, a refrigerator, and a control method to solve the problem that refrigerators in the prior art cannot simultaneously use ethylene removal preservation and carbon dioxide preservation methods to store fruits and vegetables.

[0007] To achieve one or more of the above objectives or other objectives, the technical solution of the present invention is a preservation room, comprising a first room and a second room arranged adjacent to each other;

[0008] The first room is equipped with an ozone generator;

[0009] A breathable membrane assembly is provided on the partition between the first and second compartments;

[0010] The first compartment has a first through hole on one side wall corresponding to the breathable membrane assembly, and the second compartment has a second through hole on one side wall corresponding to the breathable membrane assembly.

[0011] The breathable membrane assembly is used to transfer carbon dioxide from the first compartment to the second compartment.

[0012] Furthermore, the breathable membrane assembly includes a breathable membrane, a cover plate, and an actuator;

[0013] The partition is provided with a breathable membrane, and the partition is provided with a cover plate corresponding to the breathable membrane, and the cover plate is slidably connected to the partition.

[0014] An actuator is also provided on the partition, and the drive end of the actuator is connected to the cover plate;

[0015] The cover plate is used to cover the breathable membrane to prevent carbon dioxide from the first compartment from passing into the second compartment.

[0016] Furthermore, the first room is also equipped with an exhaust system, which is used to blow the gas in the first room toward the breathable membrane.

[0017] Furthermore, the first room is also equipped with a first detection device, which is used to detect the carbon dioxide concentration in the first room;

[0018] The second room is also equipped with a second detection device, which is used to detect the carbon dioxide concentration in the second room.

[0019] Furthermore, the first room is also equipped with an infrared identification device, which is used to identify the type of fruits and vegetables placed in the first room.

[0020] A refrigerator includes the aforementioned fresh-keeping compartment.

[0021] A method for controlling the above-mentioned refrigerator includes the following steps:

[0022] S1: Place the fruits and vegetables in the first room;

[0023] S2: Identify the type of fruits and vegetables using an infrared recognition device, and select the working time of the ozone generator based on the type of fruits and vegetables;

[0024] S3: After the ozone generator stops working, the carbon dioxide concentration in the first room is detected by the first detection device at a preset time interval.

[0025] S4: When the carbon dioxide concentration in the first room is not lower than the first threshold concentration, control the carbon dioxide in the first room to be transferred to the second room through the breathable membrane;

[0026] S5: Keep the carbon dioxide concentration in the second compartment below the second threshold concentration.

[0027] Further, in step S2, the operating time of the ozone generator is selected according to the type of fruits and vegetables, including:

[0028] When the type of fruit and vegetable is climacteric, the ozone generator is selected to operate for the first working time h1.

[0029] When the types of fruits and vegetables are a mixture of climacteric and non-climacteric fruits and vegetables, the ozone generator selects the second working time h2;

[0030] When the type of fruit and vegetable is non-climacteric, the ozone generator is selected for the third working time h3.

[0031] The first working time h1 is 3-5 hours, the second working time h2 is 2-3 hours, and the third working time h3 is 0-1 hour.

[0032] Furthermore, the first threshold concentration in step S4 is 3%.

[0033] Furthermore, the second threshold concentration in step S5 is 30%;

[0034] When the carbon dioxide concentration is no higher than 30%, the second compartment remains unchanged.

[0035] When the carbon dioxide concentration is above 30%, open the second chamber and leave it open for 1 minute.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] The ozone generator of the present invention can decompose ethylene gas in the first chamber and generate carbon dioxide gas. The carbon dioxide gas can then be transferred to the second chamber through the breathable membrane assembly. The first chamber is used to store fruits and vegetables that need to be preserved by removing ethylene, and the second chamber is used to store fruits and vegetables that need to be preserved by high concentration of carbon dioxide. In this way, the preservation chamber can make reasonable use of the carbon dioxide gas generated by the ozone generator from the decomposition of ethylene gas, so that the preservation chamber can simultaneously use the ethylene removal preservation method and the high concentration of carbon dioxide preservation method to store fruits and vegetables. Attached Figure Description

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects and not to describe a particular order.

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the internal structure of the preservation compartment of the present invention;

[0041] Figure 2 for Figure 1 Enlarged schematic diagram of reference numeral A in the attached figure;

[0042] Figure 3 This is a schematic diagram of the structure of the partition and breathable membrane assembly of the present invention, wherein a is the open state of the breathable membrane assembly and b is the closed state of the breathable membrane assembly;

[0043] Figure 4 This is a schematic diagram of part of the internal structure of the refrigerator of the present invention;

[0044] Figure 5 This is a flowchart of the control method of the present invention.

[0045] Figure label:

[0046] 10. The first room;

[0047] 101. First through hole;

[0048] 20. The second room;

[0049] 201. Second through hole;

[0050] 30. Ozone generator;

[0051] 40. Partition;

[0052] 50. Breathable membrane assembly;

[0053] 501. Breathable membrane;

[0054] 502, cover plate;

[0055] 503. Actuator;

[0056] 60. Exhaust system;

[0057] 70. First detection device;

[0058] 80. Second detection device;

[0059] 90. Infrared identification device;

[0060] 100. Handle. Detailed Implementation

[0061] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Therefore, a feature pointed out in this specification is used to illustrate one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0062] The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0063] As one embodiment, refer to the appendix Figure 1-4 The present invention proposes a preservation compartment, comprising a first compartment 10 and a second compartment 20 arranged adjacent to each other; wherein, the first compartment 10 is used to store fruits and vegetables that require ethylene removal for preservation, which are divided into climacteric fruits and vegetables and non-climacteric fruits and vegetables; the second compartment 20 is used to store fruits and vegetables that require high concentration of carbon dioxide for preservation.

[0064] The first chamber 10 is equipped with an ozone generator 30, which is used to decompose the ethylene gas in the first chamber 10 and generate carbon dioxide gas and water molecules.

[0065] A breathable membrane assembly 50 is provided on the partition 40 at the adjacent position of the first compartment 10 and the second compartment 20. The breathable membrane assembly 50 is used to transfer carbon dioxide in the first compartment 10 to the second compartment 20.

[0066] The first chamber 10 is provided with a first through hole 101 on one side wall of the breathable membrane assembly 50, and the second chamber 20 is provided with a second through hole 201 on one side wall of the breathable membrane assembly 50. The first through hole 101 facilitates the entry of carbon dioxide from the first chamber 10 into the breathable membrane assembly 50, while the second through hole 201 facilitates the entry of carbon dioxide from the breathable membrane assembly 50 into the second chamber 20.

[0067] Among them, climacteric fruits and vegetables:

[0068] These types of fruits and vegetables exhibit vigorous respiration after harvest, with a rapid increase in respiration rate, producing large amounts of ethylene gas. This causes them to mature quickly and enter the senescence stage, which is detrimental to their preservation and storage. Therefore, it is necessary to control the concentration of ethylene gas to achieve long-term preservation. Examples include peaches and plums.

[0069] Non-respiratory pulsatile type:

[0070] These types of fruits and vegetables have weaker postharvest respiration compared to climacteric fruits and vegetables, but their respiration intensity remains relatively high throughout the storage period, producing more ethylene gas. This is detrimental to the preservation and storage of fruits and vegetables. Therefore, it is necessary to control the concentration of ethylene gas to slow down the ripening process and achieve long-term preservation. Examples include strawberries and longans.

[0071] Fruits and vegetables suitable for high-concentration carbon dioxide preservation:

[0072] These types of fruits and vegetables are best preserved by high-concentration carbon dioxide gas after harvesting, which slows down their ripening process and allows for long-term freshness. Examples include cherries and bayberries.

[0073] In this embodiment, when the user places climacteric fruits and / or non-climacteric fruits and vegetables into the first chamber 10, the climacteric and / or non-climacteric fruits and vegetables will generate ethylene gas. The ozone generator 30 will then absorb the ethylene gas in the first chamber 10 every day and generate carbon dioxide gas and water molecules, thereby achieving the preservation and storage of fruits and vegetables placed in the first chamber 10. Then, the generated carbon dioxide gas will enter the second chamber 20 through the breathable membrane component 50. When the carbon dioxide concentration in the second chamber 20 reaches the preservation concentration requirement of the corresponding fruits and vegetables, fruits and vegetables suitable for high-concentration carbon dioxide preservation and storage can be placed in the second chamber 20 for preservation and storage.

[0074] This allows the fresh food storage room to make reasonable use of the ozone generator 30 to decompose ethylene gas into carbon dioxide gas, thereby enabling the fresh food storage room to simultaneously use ethylene removal preservation and high-concentration carbon dioxide preservation methods to store fruits and vegetables.

[0075] In this embodiment, refer to the appendix. Figure 1 The first chamber 10 is also equipped with an infrared identification device 90, which is used to identify the type of fruits and vegetables placed in the first chamber 10. The infrared identification device 90 can identify the type of fruits and vegetables using infrared spectroscopy technology, and these types are divided into three categories:

[0076] The categories are: 1) climacteric fruits and vegetables; 2) non-climacteric fruits and vegetables; and 3) a mixture of climacteric and non-climacteric fruits and vegetables.

[0077] The first chamber 10 is also equipped with a first detection device 70, which is used to detect the carbon dioxide concentration in the first chamber 10;

[0078] The second chamber 20 is also equipped with a second detection device 80, which is used to detect the carbon dioxide concentration in the second chamber 20.

[0079] Among them, refer to the appendix Figure 3 The breathable membrane assembly 50 includes a breathable membrane 501, a cover plate 502, and an actuator 503; the breathable membrane 501 is preferably a carbon dioxide breathable membrane, which can transfer carbon dioxide gas from one side to the other through permeation.

[0080] The partition 40 is provided with a breathable membrane 501, and a cover plate 502 is provided on the partition 40 corresponding to the breathable membrane 501. The cover plate 502 is slidably connected to the partition 40. The partition 40 is also provided with an actuator 503, and the driving end of the actuator 503 is connected to the cover plate 502.

[0081] The cover plate 502 is used to cover the breathable membrane 501 to prevent carbon dioxide from the first compartment 10 from being transferred to the second compartment 20.

[0082] Among them, refer to the appendix Figure 1 To accelerate the transfer of carbon dioxide from the first chamber 10 to the second chamber 20, an exhaust device 60 is provided in the first chamber 10. The exhaust device 60 is located on an inner side wall of the first chamber 10 away from the first through hole 101, and the air outlet of the exhaust device 60 faces the first through hole 101. The exhaust device 60 is used to blow the gas in the first chamber 10 toward the breathable membrane 501. The exhaust device 60 is preferably a fan.

[0083] The preservation room of this invention is also equipped with a control center and a storage unit. The storage unit is pre-set with the characteristics of various types of fruits and vegetables (the types of fruits and vegetables are roughly divided into two types: climacteric fruits and vegetables and non-climacteric fruits and vegetables). When the infrared identification device 90 uploads the characteristics of the fruits and vegetables it identifies to the control center, the control center will compare the uploaded characteristics with the characteristics of the fruits and vegetables pre-stored in the storage unit, and then determine whether the fruits and vegetables identified by the infrared identification device 90 are climacteric fruits and vegetables or non-climacteric fruits and vegetables.

[0084] When the preservation chamber of this invention is in operation, fruits and vegetables that require ethylene removal for preservation are first placed in the first chamber 10 for storage. Then, the control center first controls the infrared identification device 90 to identify the type of fruits and vegetables placed in the first chamber 10. Then, the control center selects the working time of the ozone generator 30 according to the type of fruits and vegetables. When the first detection device 70 detects that the carbon dioxide concentration in the first chamber 10 is greater than or equal to its own threshold concentration, the first detection device 70 will send a start electrical signal to the control center. Then, the control center will control the cover plate 502 to move relative to the breathable membrane 501 through the actuator 503, exposing the breathable membrane 501, so that the carbon dioxide gas in the first chamber 10 can be transferred to the second chamber 20 through the breathable membrane 501. Then, the control center will start the exhaust device 60 to blow the carbon dioxide in the first chamber 10 toward the breathable membrane 501. Then, fruits and vegetables that require high concentration carbon dioxide preservation are placed in the second chamber 20 for storage.

[0085] If the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 reaches its own threshold concentration, the second detection device 80 will send a shutdown signal to the control center. At this time, the control center will control the cover 502 to move relative to the ventilated membrane 501 through the actuator 503, covering the ventilated membrane 501 to prevent carbon dioxide in the first chamber 10 from passing into the second chamber 20, thus preventing the carbon dioxide concentration in the second chamber 20 from becoming too high. If the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 exceeds its own threshold concentration, the second detection device 80 will send a warning signal to the control center. At this time, the control center will control the buzzer to sound to remind the user, and then the user will open the second chamber 20 and keep it open for one minute.

[0086] Of course, when the user opens the first chamber 10 again and takes away fruits and vegetables or puts in new fruits and vegetables, the infrared recognition device 90 of the present invention needs to re-identify the remaining types of fruits and vegetables and the types of fruits and vegetables put in, and then repeat the above operation steps in sequence.

[0087] The ozone generator 30 operates once a day; the first detection device 70 in the first chamber 10 detects the carbon dioxide concentration in the first chamber 10 every two hours; and the second detection device 80 in the second chamber 20 detects the carbon dioxide concentration in the second chamber 20 every week.

[0088] The ozone generator 30, the first detection device 70, and the infrared recognition device 90 are all located on the upper part of the first chamber 10, and the second detection device 80 is located on the upper part of the second chamber 20. Both the first and second chambers 20 are equipped with handles 100, which facilitate the user in opening either chamber.

[0089] Of course, the preservation chamber proposed in this invention can also be used for the preservation and storage of flowers and other plants. When flowers and other plants that need to be preserved by removing ethylene are placed in the first chamber 10 for preservation and storage, when flowers and other plants that need to be preserved by high concentration of carbon dioxide are placed in the second chamber 20 for preservation and storage.

[0090] In this embodiment, refer to the appendix. Figure 4 The present invention also proposes a refrigerator, including the above-described fresh-keeping compartment.

[0091] The refrigerator proposed in this invention includes the refrigeration module, freezer compartment, refrigerator compartment, and door that are common features of existing refrigerators.

[0092] The refrigerator is equipped with a control button or touch screen (not shown, same throughout) on the outside or inside. The control button or touch screen is electrically connected to the control center and can start or stop the control center. When the user presses the control button or operates the touch screen, the fresh food compartment can start working.

[0093] The first compartment 10 and the second compartment 20 can be arranged side by side or vertically inside the refrigerator. In this embodiment, the first compartment 10 and the second compartment 20 are preferably arranged side by side inside the refrigerator. The refrigerator proposed by this invention has at least one fresh-keeping compartment, that is, at least one first compartment 10 and one second compartment 20 arranged side by side with the first compartment 10 inside the refrigerator.

[0094] In this embodiment, refer to the appendix. Figure 5 The present invention also proposes a refrigerator control method, comprising the following steps:

[0095] S1: Place the fruits and vegetables in the first compartment 10.

[0096] S2: Identify the type of fruits and vegetables using the infrared identification device 90, and select the working time of the ozone generator 30 according to the type of fruits and vegetables.

[0097] The working time of the ozone generator 30 is divided into a first working time h1, a second working time h2, and a third working time h3 according to the type of fruit and vegetables.

[0098] When the fruit and vegetable type is climacteric, the ozone generator 30 operates for a first working time h1 each time, which is preferably 3-5 hours; when the fruit and vegetable type is a mixture of climacteric and non-climacteric fruits and vegetables, the ozone generator 30 operates for a second working time h2 each time, which is preferably 2-3 hours; when the fruit and vegetable type is non-climacteric, the ozone generator 30 operates for a third working time h3 each time, which is preferably 0-1 hour.

[0099] S3: After the ozone generator 30 stops working, the carbon dioxide concentration in the first chamber 10 is detected by the first detection device 70 at a preset time interval.

[0100] The preferred preset time is 2 hours.

[0101] S4: When the carbon dioxide concentration in the first chamber (10) is not lower than the first threshold concentration, control the carbon dioxide in the first chamber 10 to be transferred to the second chamber 20 through the breathable membrane 501.

[0102] The preferred first threshold concentration is 3%.

[0103] S5: Keep the carbon dioxide concentration in the second chamber 20 below the second threshold concentration.

[0104] The second threshold concentration is preferably 30%. When the carbon dioxide concentration is not higher than 30%, the second chamber 20 remains unchanged; when the carbon dioxide concentration is higher than 30%, the second chamber 20 is opened and held for one minute.

[0105] The refrigerator control method proposed in this invention is as follows:

[0106] First, place the fruits and vegetables that need to be preserved by removing ethylene into the first chamber 10 for storage. Then, press the control button or operate the touch screen. The control center first controls the infrared identification device 90 to identify the type of fruits and vegetables placed in the first chamber 10. Then, the control center selects the corresponding working time of the ozone generator 30 according to the type of fruits and vegetables. After the ozone generator 30 finishes its working time, the first detection device 70 will detect the carbon dioxide concentration T in the first chamber 10 every 2 hours. When the carbon dioxide concentration T in the first chamber 10 is detected to be ≥3%, the first detection device 70 will send a start electrical signal to the control center. Then, the control center will control the cover 502 to move relative to the breathable membrane 501 through the actuator 503, exposing the breathable membrane 501, so that the carbon dioxide gas in the first chamber 10 can be transferred to the second chamber 20 through the breathable membrane 501. Then, the control center will start the exhaust device 60 to blow the carbon dioxide in the first chamber 10 toward the breathable membrane 501. Then, fruits and vegetables that require high concentration carbon dioxide preservation will be placed in the second chamber 20 for storage.

[0107] Furthermore, the second detection device 80 detects the carbon dioxide concentration in the second chamber 20 every 7 days to maintain the carbon dioxide concentration in the second chamber 20 at no higher than 30%. If the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 reaches 30%, the second detection device 80 will send a shutdown signal to the control center. At this time, the control center will control the cover plate 502 to move relative to the breathable membrane 501 through the actuator 503, covering the breathable membrane 501, so that the carbon dioxide in the first chamber 10 cannot be transferred to the second chamber 20, and prevent the carbon dioxide concentration in the second chamber 20 from exceeding 30%.

[0108] Meanwhile, if the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 exceeds 30%, the second detection device 80 will send a warning electrical signal to the control center. At this time, the control center will control the buzzer to sound to remind the user. Then the user will open (pull open) the second chamber 20 for one minute to allow the carbon dioxide in the second chamber 20 to diffuse to the outside and reduce the carbon dioxide concentration in the second chamber 20.

[0109] Example 1

[0110] When the fruits and vegetables placed in the first chamber 10 are climacteric fruits and vegetables, the ozone generator 30 will operate for 3-5 hours per day. After the ozone generator 30 finishes operating, the first detection device 70 will detect the carbon dioxide concentration T in the first chamber 10 every 2 hours. When the carbon dioxide concentration T in the first chamber 10 is detected to be ≥3%, the first detection device 70 will send a start electrical signal to the control center. Then, the control center will control the cover 502 to move relative to the breathable membrane 501 through the actuator 503, exposing the breathable membrane 501, so that the carbon dioxide gas in the first chamber 10 can be transferred to the second chamber 20 through the breathable membrane 501. Then, the control center will start the exhaust device 60 to blow the carbon dioxide in the first chamber 10 towards the breathable membrane 501. Then, the fruits and vegetables that require high concentration carbon dioxide preservation will be placed in the second chamber 20 for storage.

[0111] Furthermore, the carbon dioxide concentration in the second chamber 20 must be kept below 30%. If the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 reaches 30%, the second detection device 80 will send a shutdown signal to the control center. At this time, the control center will control the cover plate 502 to move relative to the breathable membrane 501 through the actuator 503, covering the breathable membrane 501 to prevent the carbon dioxide concentration in the second chamber 20 from exceeding 30%.

[0112] Meanwhile, if the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 exceeds 30%, the second detection device 80 will send a warning electrical signal to the control center. At this time, the control center will control the buzzer to sound to remind the user, and then the user will open the second chamber 20 for one minute.

[0113] Example 2

[0114] When the fruits and vegetables placed in the first chamber 10 are climacteric or non-climacteric fruits and vegetables, the ozone generator 30 will operate for 2-3 hours per day. After the ozone generator 30 finishes operating, the first detection device 70 will detect the carbon dioxide concentration T in the first chamber 10 every 2 hours. When the carbon dioxide concentration T in the first chamber 10 is detected to be ≥3%, the first detection device 70 will send a start electrical signal to the control center. Then, the control center will control the cover 502 to move relative to the breathable membrane 501 through the actuator 503, exposing the breathable membrane 501, so that the carbon dioxide gas in the first chamber 10 can be transferred to the second chamber 20 through the breathable membrane 501. Then, the control center will start the exhaust device 60 to blow the carbon dioxide in the first chamber 10 towards the breathable membrane 501. Then, the fruits and vegetables that require high concentration carbon dioxide preservation will be placed in the second chamber 20 for storage.

[0115] Furthermore, the carbon dioxide concentration in the second chamber 20 must be kept below 30%. If the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 reaches 30%, the second detection device 80 will send a shutdown signal to the control center. At this time, the control center will control the cover plate 502 to move relative to the breathable membrane 501 through the actuator 503, covering the breathable membrane 501 to prevent the carbon dioxide concentration in the second chamber 20 from exceeding 30%.

[0116] Meanwhile, if the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 exceeds 30%, the second detection device 80 will send a warning electrical signal to the control center. At this time, the control center will control the buzzer to sound to remind the user, and then the user will open the second chamber 20 for one minute.

[0117] Example 3

[0118] When the fruits and vegetables placed in the first chamber 10 are non-climacteric fruits and vegetables, the ozone generator 30 will operate for 0-1 hours per day. After the ozone generator 30 finishes operating, the first detection device 70 will detect the carbon dioxide concentration T in the first chamber 10 every 2 hours. When the carbon dioxide concentration T in the first chamber 10 is detected to be ≥3%, the first detection device 70 will send a start electrical signal to the control center. Then, the control center will control the cover 502 to move relative to the breathable membrane 501 through the actuator 503, exposing the breathable membrane 501, so that the carbon dioxide gas in the first chamber 10 can be transferred to the second chamber 20 through the breathable membrane 501. Then, the control center will start the exhaust device 60 to blow the carbon dioxide in the first chamber 10 towards the breathable membrane 501. Then, the fruits and vegetables that require high concentration carbon dioxide preservation will be placed in the second chamber 20 for storage.

[0119] Furthermore, the carbon dioxide concentration in the second chamber 20 must be kept below 30%. If the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 reaches 30%, the second detection device 80 will send a shutdown signal to the control center. At this time, the control center will control the cover plate 502 to move relative to the breathable membrane 501 through the actuator 503, covering the breathable membrane 501 to prevent the carbon dioxide concentration in the second chamber 20 from exceeding 30%.

[0120] Meanwhile, if the second detection device 80 detects that the carbon dioxide concentration in the second chamber 20 exceeds 30%, the second detection device 80 will send a warning electrical signal to the control center. At this time, the control center will control the buzzer to sound to remind the user, and then the user will open the second chamber 20 for one minute.

[0121] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A fresh food storage compartment, characterized in that: It includes a first room (10) and a second room (20) that are arranged adjacent to each other; An ozone generator (30) is installed in the first chamber (10); A breathable membrane assembly (50) is provided on the partition (40) at the adjacent position of the first compartment (10) and the second compartment (20); The first chamber (10) has a first through hole (101) on one side wall corresponding to the breathable membrane assembly (50), and the second chamber (20) has a second through hole (201) on one side wall corresponding to the breathable membrane assembly (50). The breathable membrane assembly (50) is used to transfer carbon dioxide from the first compartment (10) to the second compartment (20).

2. The preservation compartment according to claim 1, characterized in that: The breathable membrane assembly (50) includes a breathable membrane (501), a cover plate (502), and an actuator (503); The partition (40) is provided with a breathable membrane (501), and the partition (40) is provided with a cover plate (502) corresponding to the breathable membrane (501), and the cover plate (502) is slidably connected to the partition (40); An actuator (503) is also provided on the partition (40), and the drive end of the actuator (503) is connected to the cover plate (502); The cover plate (502) is used to cover the breathable membrane (501) to prevent carbon dioxide from the first compartment (10) from being transferred to the second compartment (20).

3. The preservation compartment according to claim 2, characterized in that: The first chamber (10) is also provided with an exhaust device (60) for blowing the gas in the first chamber (10) toward the breathable membrane (501).

4. The preservation compartment according to claim 1, characterized in that: The first chamber (10) is also provided with a first detection device (70), which is used to detect the carbon dioxide concentration in the first chamber (10); The second chamber (20) is also equipped with a second detection device (80), which is used to detect the carbon dioxide concentration in the second chamber (20).

5. The preservation compartment according to claim 1, characterized in that: The first chamber (10) is also equipped with an infrared identification device (90), which is used to identify the type of fruits and vegetables placed in the first chamber (10).

6. A refrigerator, characterized in that: Includes the preservation room as described in any one of claims 1-5.

7. A control method for a refrigerator as described in claim 6, characterized in that: Includes the following steps: S1: Place the fruits and vegetables in the first room (10); S2: Identify the type of fruits and vegetables by infrared identification device (90) and select the working time of ozone generator (30) according to the type of fruits and vegetables; S3: After the ozone generator (30) finishes working, the carbon dioxide concentration in the first chamber (10) is detected once every preset time by the first detection device (70); S4: When the carbon dioxide concentration in the first chamber (10) is not lower than the first threshold concentration, control the carbon dioxide in the first chamber (10) to be transferred to the second chamber (20) through the breathable membrane (501); S5: Keep the carbon dioxide concentration in the second chamber (20) below the second threshold concentration.

8. The control method according to claim 7, characterized in that: In step S2, the working time of the ozone generator (30) is selected according to the type of fruit and vegetable, including: When the type of fruit and vegetable is climacteric fruit and vegetable, the ozone generator (30) selects the first working time h1; When the types of fruits and vegetables are a mixture of climacteric and non-climacteric fruits and vegetables, the ozone generator (30) selects the second working time h2; When the type of fruit and vegetable is non-breathing climacteric fruit and vegetable, the ozone generator (30) selects the third working time h3; The first working time h1 is 3-5 hours, the second working time h2 is 2-3 hours, and the third working time h3 is 0-1 hour.

9. The control method according to claim 7, characterized in that: The first threshold concentration in step S4 is 3%.

10. The control method according to claim 7, characterized in that: The second threshold concentration in step S5 is 30%; When the carbon dioxide concentration is not higher than 30%, the second chamber (20) remains unchanged; When the carbon dioxide concentration is above 30%, open the second chamber (20) and keep it open for 1 minute.

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