Fresh-keeping system, control method and refrigerator

Abstract

The invention provides a fresh-keeping system, a control method and a refrigerator, the fresh-keeping system comprises a storage space and a processing space, the storage space is used for storing meat; the processing space is used for placing food materials to be processed; the first cooling disc and the second cooling disc are both movably arranged; the first cooling disc and the second cooling disc are interchanged in position between the storage space and the processing space; and at least part of the microwave generating device is arranged in the processing space, and the microwave generating device is used for defrosting the first cooling disc or the second cooling disc. According to the fresh-keeping system, the technical problem that in the prior art, too much fresh meat is stored in a freezing chamber of an air-cooled refrigerator, the freezing or frosting phenomenon is likely to be intensified, and therefore the later-period meat cooling rate is affected is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly to a fresh-keeping system, a control method and a refrigerator. Background Art

[0002] Meat is not only rich in nutrients and delicious in taste, but also contains a variety of vitamins and amino acids, which are easy to be digested and absorbed by the human body, and is an indispensable part of residents' daily diet. At present, cryogenic freezing is the most common, economical and effective method for meat preservation. However, in the freezer of an air-cooled refrigerator, as time goes by, the circulating cold air will gradually take away the moisture on the surface of the meat, resulting in a decline in meat quality and deterioration of quality.

[0003] Therefore, the prior art usually sets up a fresh-freezing zone in the freezer of an air-cooled refrigerator to store meat and avoid the phenomenon of air-drying of food materials. In addition, a direct-cooling drawer is often provided in the air-cooled refrigerator to store meat. However, if too much fresh meat is placed in these storage spaces, it is easy to cause an increase in the phenomenon of icing or frosting, thereby affecting the later cooling rate of the meat.

[0004] Therefore, the prior art still needs to be further developed. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a fresh-keeping system, a control method and a refrigerator to solve the technical problem that too much fresh meat stored in the freezer of the air-cooled refrigerator in the prior art is likely to cause an increase in the phenomenon of icing or frosting, thereby affecting the later cooling rate of the meat.

[0006] To achieve the above technical purpose, according to one aspect of the present invention, a fresh-keeping system is provided, including: a storage space for storing meat; a processing space for placing ingredients to be processed; a first cooling plate and a second cooling plate, both the first cooling plate and the second cooling plate are movably arranged; the first cooling plate and the second cooling plate are configured to exchange positions between the storage space and the processing space; a microwave generating device, at least part of the microwave generating device is arranged in the processing space, and the microwave generating device is configured to defrost the first cooling plate or the second cooling plate; wherein, after the cooling plate in the storage space and the cooling plate in the processing space complete the position exchange, the microwave generating device performs a defrosting treatment on the first cooling plate or the second cooling plate that has been switched to the processing space, and adaptively adjusts the defrosting duration.

[0007] Further, the fresh-keeping system further includes: a photoelectric detection device, which is arranged in the processing space and is used to detect the frosting state of the first cooling plate or the second cooling plate that has been switched to the processing space; a microwave generating device is connected to the photoelectric detection device, and the microwave generating device adaptively adjusts the defrosting duration according to the detection result of the photoelectric detection device.

[0008] Further, the photoelectric detection device includes: a transmitter and a receiver, which are arranged at intervals in the processing space, and the transmitter and the receiver are respectively located on both sides of the cooling plate in the processing space; the transmitter is used to emit signals, and the receiver is used to receive the signals emitted by the transmitter; the frosting state of the first cooling plate or the second cooling plate in the processing space is detected by the strength of the signals received by the receiver.

[0009] Further, the fresh-keeping system further includes: a box body, in which a storage space, a processing space and a cooling space are arranged at intervals. The storage space and the processing space are arranged in sequence along the width direction of the box body, and the cooling space is located above the storage space and the processing space; the cooling space is used for cooling the air circulation, and the cooling air exchanges heat with the meat in the storage space through the first cooling plate or the second cooling plate; the cooling space is respectively communicated with the storage space and the processing space; wherein, when it is necessary to swap the positions of the first cooling plate or the second cooling plate in the storage space with the other cooling plate in the processing space, both the first cooling plate and the second cooling plate move into the cooling space, and the first cooling plate and the second cooling plate swap positions in the cooling space; when the position swapping is completed, the corresponding storage space and processing space are blocked by the first cooling plate and the second cooling plate respectively.

[0010] Further, the fresh-keeping system further includes: a first moving device, which is movably arranged in the cooling space; the first moving device is connected to the first cooling plate, and the first moving device drives the first cooling plate to move among the storage space, the cooling space and the processing space; a second moving device, which is movably arranged in the cooling space; the second moving device is connected to the second cooling plate, and the second moving device drives the second cooling plate to move among the storage space, the cooling space and the processing space.

[0011] Further, the first moving device includes: a first moving member, which is movably arranged in the cooling space along the width direction of the box body, the first moving member is connected to the first cooling plate, and the first moving member drives the first cooling plate to move reciprocally along the width direction of the box body; a first connecting member, which is telescopically arranged on the first moving member along the height direction of the box body; the first connecting member extends along the height direction of the box body, and one end of the first connecting member far away from the first moving member is connected to the first cooling plate, and the first connecting member drives the first cooling plate to move along the height direction of the box body.

[0012] Further, both the first moving member and the first connecting member are two, and the two first moving members and the two first connecting members are arranged in one-to-one correspondence; the two first moving members are arranged at intervals along the length direction of the box body, and the two first moving members are both connected to the first cooling plate through the corresponding first connecting members, and a first distance is formed between the two first connecting members; wherein, the first distance is greater than the length of the second cooling plate.

[0013] Further, the fresh-keeping system further includes: two first clamping members, and the two first clamping members are arranged in one-to-one correspondence with the two first connecting members; the two first clamping members are arranged on both sides of the first cooling plate at intervals along the length direction of the box body, and the two first clamping members are used for clamping and fixing the first cooling plate; the two first connecting members are respectively connected to the corresponding first clamping members; wherein, the first clamping member includes a first clamping member body and a first extension portion, and the first clamping member body is used for clamping the first cooling plate; the first extension portion extends along the length direction of the box body; one end of the first extension portion is connected to one end of the first clamping member body located in the cooling space, the other end of the first extension portion is arranged in a direction away from the first cooling plate, and the first connecting member is connected to the other end of the first extension portion; so that through the first extension portion, the first distance is greater than the length of the second cooling plate.

[0014] Further, the second moving device includes: a second moving member, the second moving member is movably arranged in the cooling space along the width direction of the box body, the second moving member is connected to the second cooling plate, and the second moving member drives the second cooling plate to reciprocate along the width direction of the box body; a second connecting member, the second connecting member is telescopically arranged on the second moving member along the height direction of the box body; the second connecting member extends along the height direction of the box body, and one end of the second connecting member away from the second moving member is connected to the second cooling plate, and the second connecting member drives the second cooling plate to move along the height direction of the box body; wherein, the second moving member is located between the two first moving members; the second connecting member is located between the two first connecting members; when the positions of the first cooling plate and the second cooling plate are interchanged, the distance between the first cooling plate and the top wall of the box body is greater than the distance between the second cooling plate and the top wall of the box body, so that the second cooling plate can pass through between the two first connecting members.

[0015] Further, both the second moving member and the second connecting member are two, and the two second moving members and the two second connecting members are arranged in one-to-one correspondence; the two second moving members are arranged at intervals along the length direction of the box body, and the two second moving members are both connected to the second cooling plate through the corresponding second connecting members, and a second distance is formed between the two second connecting members; wherein, the second distance is less than the first distance.

[0016] Further, the freshness preservation system further includes: two second clamping members, which are arranged on both sides of the second cooling plate at intervals along the length direction of the box body, and the two second clamping members are used for clamping and fixing the second cooling plate; the second moving device further includes: two fixing members, which are arranged on the second cooling plate at intervals along the length direction of the box body, and the two fixing members are respectively arranged in one-to-one correspondence with the two second connecting members and the two second clamping members. One ends of the two fixing members are respectively connected to the corresponding second connecting members, and the other ends of the two fixing members are arranged in a direction away from the second connecting members along the length direction of the box body; and the other ends of the two fixing members are respectively connected to the corresponding second clamping members.

[0017] Further, the freshness preservation system further includes: a first grille filter screen, which is detachably arranged in the storage space and is located at the bottom of the storage space; the meat stored in the storage space is placed on the first grille filter screen; a first weight detection device, which is arranged inside the inner wall of the storage space and is located on one side of the first grille filter screen, and the first weight detection device is used for detecting the weight of the meat stored in the storage space; wherein, the time for the position exchange between the first cooling plate and the second cooling plate is adaptively adjusted according to the weight of the meat in the storage space detected by the first weight detection device.

[0018] Further, the freshness preservation system further includes: a second grille filter screen, which is detachably arranged in the processing space and is located at the bottom of the processing space; the second grille filter screen is used for placing the ingredients to be processed; a second weight detection device, which is arranged inside the inner wall of the processing space and is located on one side of the second grille filter screen, and the second weight detection device is used for detecting the weight of the ingredients to be processed in the processing space; wherein, the microwave generating device is also used for processing the ingredients to be processed, and the microwave generating device adaptively adjusts the processing duration according to the weight of the ingredients to be processed detected by the second weight detection device and the processing instruction.

[0019] According to another aspect of the present invention: The present invention provides a refrigerator, including: the above-mentioned freshness preservation system.

[0020] According to another aspect of the present invention: The present invention provides a control method, which is applied to the above-mentioned freshness preservation system, and the control method includes: judging whether to exchange the positions of the cooling plate in the storage space and the cooling plate in the processing space; if the position exchange is required, after the position exchange is completed, the microwave generating device is turned on to defrost the first cooling plate or the second cooling plate that has been switched to the processing space; the microwave generating device adaptively adjusts the defrosting duration according to the frosting state of the first cooling plate or the second cooling plate in the processing space.

[0021] Further, the control method is applied to the above-mentioned freshness preservation system; the method for the microwave generating device to adaptively adjust the defrosting duration according to the frosting state of the first cooling tray or the second cooling tray in the processing space includes: after completing the position exchange, the photoelectric detection device detects the frosting state of the first cooling tray or the second cooling tray in the processing space; if the shielding rate of the frost layer on the first cooling tray or the second cooling tray to the signal emitted by the photoelectric detection device is greater than or equal to the preset shielding rate, the defrosting duration of the microwave generating device is adjusted to the first preset duration; if the shielding rate of the frost layer on the first cooling tray or the second cooling tray to the signal emitted by the photoelectric detection device is less than the preset shielding rate, the defrosting duration of the microwave generating device is adjusted to the second preset duration; wherein, the first preset duration is greater than the second preset duration.

[0022] Further, the method for determining whether to exchange the positions of the first cooling tray or the second cooling tray in the storage space with the other cooling tray in the processing space includes: obtaining the current storage weight in the storage space; determining the time for exchanging the positions of the first cooling tray or the second cooling tray in the storage space with the other cooling tray in the processing space according to the current storage weight, and starting timing; if the timing time reaches the position exchange time, the first cooling tray or the second cooling tray in the storage space is exchanged with the other cooling tray in the processing space.

[0023] Further, the method for determining the time for exchanging the positions of the first cooling tray or the second cooling tray in the storage space with the other cooling tray in the processing space according to the current storage weight includes: if the current storage weight is less than the first preset weight, the time for exchanging the positions of the first cooling tray or the second cooling tray in the storage space with the other cooling tray in the processing space is the first preset time; if the current storage weight is greater than or equal to the first preset weight and less than the second preset weight, the time for exchanging the positions of the first cooling tray or the second cooling tray in the storage space with the other cooling tray in the processing space is the second preset time; if the current storage weight is greater than or equal to the second preset weight and less than the third preset weight, the time for exchanging the positions of the first cooling tray or the second cooling tray in the storage space with the other cooling tray in the processing space is the third preset time; wherein, the second preset weight is less than the third preset weight, and the second preset weight is greater than the first preset weight; the second preset time is greater than the third preset time, and the second preset time is less than the first preset time.

[0024] Further, the microwave generating device is also used to process the food ingredients to be processed in the processing space; the control method further includes: when the food ingredients to be processed are placed in the processing space, judging the weight of the food ingredients to be processed placed in the processing space; the microwave generating device processes the food ingredients to be processed according to the processing instruction, and adaptively adjusts the processing duration of the processed food ingredients according to the weight of the food ingredients to be processed.

[0025] Further, a method for the microwave generating device to adaptively adjust the processing duration of the food to be processed according to the weight of the food to be processed includes: when the weight of the food to be processed placed in the processing space is less than the fourth preset weight, the processing duration of the microwave generating device for the food is the third preset duration; when the weight of the food to be processed placed in the processing space is greater than or equal to the fourth preset weight and less than the fifth preset weight, the processing duration of the microwave generating device for the food is the fourth preset duration; when the weight of the food to be processed placed in the processing space is greater than or equal to the fifth preset weight and less than the sixth preset weight, the processing duration of the microwave generating device for the food is the fifth preset duration; wherein, the fifth preset weight is less than the sixth preset weight and greater than the fourth preset weight; the fourth preset duration is less than the fifth preset duration and greater than the third preset duration.

[0026] Further, the control method further includes: the microwave generating device calculates the required working power of the microwave generating device correspondingly according to the defrosting instruction and different processing instructions; the calculation formula is: ; wherein, is the microwave working frequency, is the relative permittivity, is the dielectric loss angle, is the effective value of the microwave electric field strength.

[0027] Beneficial effects: Applying the technical solution of the present invention, the freshness preservation system provided by the present invention includes a storage space, a processing space, a first cooling plate, a second cooling plate, and a microwave generating device. Among them, the storage space is designed specifically for meat storage, enabling the meat to be effectively cooled and stored in this space; the processing space is used for placing the ingredients to be processed, ensuring that these ingredients can be processed in this space. The first cooling plate and the second cooling plate are both movably arranged. The first cooling plate and the second cooling plate are both used to cool the meat in the storage space, or both used to reduce the temperature in the processing space so that the temperature in the processing space is maintained at a preset temperature; at the same time, the first cooling plate and the second cooling plate can be interchanged in position between the storage space and the processing space, that is, when the first cooling plate is in the storage space, the second cooling plate is in the processing space. In addition, at least part of the microwave generating device is arranged in the processing space, and the microwave generating device is used to defrost the first cooling plate or the second cooling plate. When it is necessary to interchange the position of the first cooling plate or the second cooling plate in the storage space, that is, the cooling plate in the storage space, with the other cooling plate in the processing space, that is, the cooling plate in the processing space, the first cooling plate and the second cooling plate will perform a movement. After the position interchange is completed, the microwave generating device defrosts the first cooling plate or the second cooling plate that has been switched to the processing space, and the microwave generating device adaptively adjusts the defrosting duration according to the frosting state of the first cooling plate or the frosting state of the second cooling plate. Thus, it can be seen that by the flexible interchange of the first cooling plate and the second cooling plate between the storage space and the processing space, the ice formation and frosting thickness on the surface of the cooling plate can be effectively reduced. This enables the cooling plate in the storage space to always maintain the best working state, ensuring a stable low temperature in the meat storage environment, avoiding temperature fluctuations caused by ice formation or frosting, and thus improving the cooling rate of the meat. At the same time, at least part of the microwave generating device is arranged in the processing space. Furthermore, when one cooling plate is defrosting in the processing space, the other cooling plate can still work normally in the storage space, ensuring that the low temperature in the storage space is continuously maintained and the cooling process will not be interrupted due to defrosting, thereby further improving the cooling efficiency. By setting the microwave generating device, the cooling plate can be quickly and accurately defrosted, avoiding the problems of incomplete defrosting or over-defrosting in the traditional method, and thus keeping the cooling plate clean and efficient. In addition, the setting of the first cooling plate and the second cooling plate ensures that the meat is maintained at an appropriate low temperature state to extend its freshness preservation effect, and effectively prevents the problems of drying and discoloration on the surface of the meat caused by direct exposure to cold air, ensuring that the temperature of the meat drops rapidly and is maintained in an appropriate low temperature environment, achieving a fast and uniform cooling effect. This system ensures that the meat is always in a uniform low temperature environment throughout the storage process through an optimized cooling and defrosting strategy, reducing local temperature differences, which helps to extend the shelf life of the meat. At the same time, the system provides a stable low temperature environment, reducing the breeding opportunities of bacteria and other microorganisms, and ensuring the freshness and safety of the meat.The fresh-keeping system of the present invention effectively solves the technical problem in the prior art that in the freezer of an air-cooled refrigerator, excessive storage of fresh meat is likely to cause an aggravated icing or frosting phenomenon, thereby affecting the subsequent cooling rate of the meat. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 1 shows a schematic structural view of a first perspective of an embodiment of the fresh-keeping system of the present invention; Figure 2 FIG. Figure 1 shows a partial enlarged view of part A in FIG. 1; Figure 3 FIG. Figure 1 shows a partial enlarged view of part B in FIG. 2; Figure 4 FIG. 3 shows a schematic structural view of a second perspective of an embodiment of the fresh-keeping system of the present invention; Figure 5 FIG. 4 shows a schematic structural view of a third perspective of an embodiment of the fresh-keeping system of the present invention; Figure 6 FIG. 5 shows a schematic structural view of a fourth perspective of an embodiment of the fresh-keeping system of the present invention; Figure 7 FIG. 6 shows a schematic structural view of a fifth perspective of an embodiment of the fresh-keeping system of the present invention; Figure 8 FIG. 7 shows a schematic structural view of a first cooling plate and a second cooling plate moving into a cooling space in an embodiment of the fresh-keeping system of the present invention; Figure 9 FIG. 8 shows a schematic diagram of the working principle of a magnetron in an embodiment of the fresh-keeping system of the present invention; Figure 10 FIG. 9 shows a schematic flow chart of an embodiment of the control method of the present invention.

[0029] Among them, the above-mentioned drawings include the following reference numerals: 100, box body; 1, storage space; 2, processing space; 3, first cooling plate; 4, second cooling plate; 5, microwave generating device; 51, magnetron; 511, anode; 512, cathode; 53, tank circuit; 54, microwave; 55, antenna; 56, waveguide; 6, optoelectronic detection device; 61, transmitter; 62, receiver; 7, cooling space; 8, first moving device; 81, first moving member; 82, first connecting member; 9, second moving device; 91, second moving member; 92, second connecting member; 93, fixing member; 10, first clamping member; 101, first clamping member body; 102, first extension part; 11, second clamping member; 111, second clamping member body; 112, second extension part; 12, first grid filter; 13, first weight detection device; 14, second grid filter; 15, second weight detection device; 16, first slide rail; 17, second slide rail; 18, cooling channel. Detailed implementation manners

[0030] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0031] Please refer to Figures 1 to 9 As shown, according to an embodiment of the present invention, the present invention provides a fresh-keeping system, including: a storage space 1, a processing space 2, a first cooling tray 3, a second cooling tray 4, and a microwave generating device 5. The storage space 1 is used for storing meat; the processing space 2 is used for placing ingredients to be processed; the first cooling tray 3 and the second cooling tray 4 are both movably arranged; the first cooling tray 3 and the second cooling tray 4 are configured to interchange positions between the storage space 1 and the processing space 2; at least a part of the microwave generating device 5 is arranged in the processing space 2, and the microwave generating device 5 is configured to defrost the first cooling tray 3 or the second cooling tray 4; wherein, after the cooling tray in the storage space 1 and the cooling tray in the processing space 2 complete the position interchange, the microwave generating device 5 performs a defrosting process on the first cooling tray 3 or the second cooling tray 4 that has been switched to the processing space 2, and adaptively adjusts the defrosting duration.

[0032] As can be seen, the fresh-keeping system provided by the present invention includes a storage space 1, a processing space 2, a first cooling tray 3, a second cooling tray 4, and a microwave generating device 5. Among them, the storage space 1 is designed specifically for meat storage, enabling the meat to be effectively cooled and stored in this space; the processing space 2 is used for placing the ingredients to be processed to ensure that these ingredients can be processed in this space. The first cooling tray 3 and the second cooling tray 4 are both movably arranged. The first cooling tray 3 and the second cooling tray 4 are both used to cool the meat in the storage space 1, or both are used to reduce the temperature in the processing space 2 so that the temperature in the processing space 2 is maintained at a preset temperature; at the same time, the first cooling tray 3 and the second cooling tray 4 can be interchanged in position between the storage space 1 and the processing space 2, that is, when the first cooling tray 3 is in the storage space 1, the second cooling tray 4 is in the processing space 2. In addition, at least part of the microwave generating device 5 is arranged in the processing space 2, and the microwave generating device 5 is used to defrost the first cooling tray 3 or the second cooling tray 4. When it is necessary to interchange the position of the first cooling tray 3 or the second cooling tray 4 (i.e., the cooling tray in the storage space 1) in the storage space 1 with the other cooling tray (i.e., the cooling tray in the processing space 2) in the processing space 2, the first cooling tray 3 and the second cooling tray 4 will perform a movement. After the position interchange is completed, the microwave generating device 5 defrosts the first cooling tray 3 or the second cooling tray 4 that has been switched to the processing space 2, and the microwave generating device 5 adaptively adjusts the defrosting duration according to the frosting state of the first cooling tray 3 or the frosting state of the second cooling tray 4. Thus, it can be seen that by the flexible interchange of the first cooling tray 3 and the second cooling tray 4 between the storage space 1 and the processing space 2, the icing and frosting thickness on the surface of the cooling tray can be effectively reduced. This enables the cooling tray in the storage space to always maintain the best working state, ensuring a stable low temperature in the meat storage environment, avoiding temperature fluctuations caused by icing or frosting, and thus improving the cooling rate of the meat. At the same time, at least part of the microwave generating device 5 is arranged in the processing space 2, so that when one cooling tray is defrosting in the processing space, the other cooling tray can still work normally in the storage space, ensuring that the low temperature in the storage space 1 is continuously maintained and the cooling process will not be interrupted due to defrosting, thereby further improving the cooling efficiency. By setting the microwave generating device 5, the cooling tray can be defrosted quickly and accurately, avoiding the problems of incomplete defrosting or over-defrosting in the traditional method, and thus keeping the cooling tray clean and efficient. In addition, the setting of the first cooling tray 3 and the second cooling tray 4 ensures that the meat is kept at an appropriate low temperature state to extend its fresh-keeping effect, and effectively prevents the problems of drying and discoloration on the surface of the meat caused by direct exposure to cold air, ensuring that the temperature of the meat drops rapidly and is maintained in an appropriate low temperature environment, achieving a fast and uniform cooling effect. This system ensures that the meat is always in a uniform low temperature environment throughout the storage process through an optimized cooling and defrosting strategy, reducing local temperature differences, which helps to extend the shelf life of the meat.Meanwhile, the system provides a stable low-temperature environment, reducing the breeding opportunities of bacteria and other microorganisms and ensuring the freshness and safety of meat. The preservation system of the present invention effectively solves the technical problem that the freezer of the existing air-cooled refrigerator stores too much fresh meat, which easily leads to an exacerbation of icing or frosting phenomena, thus affecting the subsequent cooling rate of the meat.

[0033] Optionally, the preservation system transfers heat through the cooling air, and the cooling air exchanges heat with the meat in the storage space 1 at the first cooling plate 3 and the second cooling plate 4, thereby achieving the cooling and refrigeration of the meat. This shows that the first cooling plate 3 and the second cooling plate 4, as indirect heat transfer elements, play a key role in effectively maintaining the low-temperature environment in the storage space, effectively reducing the moisture loss and oxidation reaction of the meat, ensuring the freshness, taste and appearance of the meat, and thus extending the preservation time of the meat.

[0034] Optionally, both the first cooling plate 3 and the second cooling plate 4 are made of non-metallic materials with a relatively large heat transfer coefficient and capable of absorbing microwaves, preferably silicon carbide. When frosting occurs on the surface of the first cooling plate 3 or the second cooling plate 4, since the relative permittivity and the tangent of the dielectric loss angle of the frost are both low, when using the microwave generating device 5 for defrosting, the frost layer on the surface of the first cooling plate 3 or the second cooling plate 4 hardly absorbs microwave energy. In this case, with the above materials, the microwave energy can directly penetrate the frost layer, enabling the microwave to interact with the cooling plate and convert the electromagnetic loss energy into heat energy, thereby using this heat energy to remove the frost layer formed on the surface of the cooling plate.

[0035] Optionally, the storage space 1 can be a variable-temperature space or a freezer space; when it is a freezer space, the direct cooling method is used for cooling. Among them, when the storage space 1 is a variable-temperature space, the temperature of the storage space 1 can be adjusted as needed to meet the preservation requirements of different types of foods. When the storage space 1 is a freezer space, the temperature is always kept below the freezing point.

[0036] Optionally, when the first cooling plate 3 is located in the storage space 1, the second cooling plate 4 is located in the processing space 2 to cool the meat in the storage space 1 through the first cooling plate 3; the second cooling plate 4 is used to keep the temperature in the processing space 2 within a preset temperature. When it is necessary to defrost the first cooling plate 3 in the storage space 1, the first cooling plate 3 and the second cooling plate 4 are interchanged in position. After the position interchange is completed, the first cooling plate 3 is located in the processing space 2, and the second cooling plate 4 is located in the storage space 1 to cool the meat in the storage space 1 through the second cooling plate 4; at the same time, the microwave generating device 5 defrosts the first cooling plate 3 currently located in the processing space 2, and the microwave generating device 5 adaptively adjusts the defrosting duration according to the frosting state of the first cooling plate 3.

[0037] Optionally, since the microwave generating device in the processing space 2 needs to send microwaves to perform corresponding processing on the food ingredients or the cooling tray placed therein, in order to prevent microwave leakage, the inner wall surfaces of the processing space 2 are all made of metal materials. Metal has a specular reflection effect on electromagnetic radiation, which can enclose the radiation source, thereby reducing the intensity of the electromagnetic field in the space and achieving an effective protection effect.

[0038] Specifically, as Figure 1 shown, the freshness preservation system further includes: a photoelectric detection device 6. The photoelectric detection device 6 is arranged in the processing space 2 and is used to detect the frosting state of the first cooling tray 3 or the frosting state of the second cooling tray 4 that has been switched into the processing space 2. The microwave generating device 5 is connected to the photoelectric detection device 6, and the microwave generating device 5 adaptively adjusts the defrosting duration according to the detection result of the photoelectric detection device 6. With such a structural arrangement, by detecting the frosting state of the first cooling tray 3 or the frosting state of the second cooling tray 4 through the photoelectric detection device 6, the microwave generating device 5 can adaptively adjust the defrosting duration according to the detection result. Furthermore, the problems of over-defrosting or incomplete defrosting are avoided, and the defrosting efficiency and effect are improved. And the microwave generating device 5 adaptively adjusts the defrosting duration according to the detection result of the photoelectric detection device 6, which can significantly reduce unnecessary energy consumption and improve the overall energy efficiency ratio of the system.

[0039] Specifically, as Figure 1 shown, the photoelectric detection device 6 includes: a transmitter 61 and a receiver 62. The transmitter 61 and the receiver 62 are arranged at intervals in the processing space 2, and the transmitter 61 and the receiver 62 are respectively located on both sides of the cooling tray in the processing space 2. The transmitter 61 is used to emit signals, and the receiver 62 is used to receive the signals emitted by the transmitter 61. The frosting state of the first cooling tray 3 or the frosting state of the second cooling tray 4 in the processing space 2 is detected by the strength of the signals received by the receiver 62. With such a structural arrangement, by setting the transmitter 61 and the receiver 62, the detection of the frosting state of the cooling tray is realized, so that the microwave generating device 5 can dynamically adjust the defrosting duration. Thereby, the defrosting efficiency and the overall energy efficiency of the system are improved.

[0040] Optionally, the transmitter 61 and the receiver 62 are arranged at intervals in the processing space 2 along the width direction of the box body 100 (such as Figure 1 the direction indicated by the arrow D in the figure).

[0041] Optionally, the transmitter 61 is an infrared transmitter; the receiver 62 is an infrared receiver. The infrared transmitter is used to emit infrared rays, and the infrared receiver 62 is used to receive the infrared rays emitted by the infrared receiver and convert the received infrared energy into an electrical signal (usually a current signal).

[0042] Optionally, the infrared emitter (i.e., emitter 61) and the infrared receiver (i.e., receiver 62) operate as follows: When the infrared emitter emits infrared rays, these infrared rays are blocked by the frost layer on the cooling plate in the processing space 2, thereby reducing the infrared energy reaching the infrared receiver. The infrared receiver receives the infrared rays after being blocked by the frost layer and converts the received infrared energy into an electrical signal (usually a current signal). As the thickness of the frost layer on the cooling plate increases, the infrared energy received by the infrared receiver gradually decreases, resulting in a corresponding decrease in the converted current signal and a gradual increase in the corresponding voltage signal. By detecting the changes in the current signal and the voltage signal, the degree of blockage of the infrared rays by the frost layer on the cooling plate can be obtained, and thus the frosting state of the cooling plate can be detected. This detection method provides a reliable basis for the microwave generating device 5 to intelligently adjust the defrosting duration according to the detected frosting state of the cooling plate, ensuring the best defrosting effect and the efficient operation of the system.

[0043] Specifically, as Figure 1 , Figure 4 and Figure 5 shown, the fresh-keeping system further includes: a box body 100, in which a storage space 1, a processing space 2 and a cooling space 7 are arranged at intervals. The storage space 1 and the processing space 2 are arranged in sequence along the width direction of the box body 100 (such as the direction indicated by the arrow D in Figure 1 ), and the cooling space 7 is located above the storage space 1 and the processing space 2; the cooling space 7 is used for cooling air circulation, and the cooling air exchanges heat with the meat in the storage space 1 through the first cooling plate 3 or the second cooling plate 4; the cooling space 7 is respectively communicated with the storage space 1 and the processing space 2; wherein, when it is necessary to swap the positions of the first cooling plate 3 in the storage space 1 or the second cooling plate 4 with the other cooling plate in the processing space 2, both the first cooling plate 3 and the second cooling plate 4 move into the cooling space 7, and the first cooling plate 3 and the second cooling plate 4 swap positions in the cooling space 7; when the position swapping is completed, the corresponding storage space 1 and processing space 2 are blocked by the first cooling plate 3 and the second cooling plate 4 respectively. With such a structural arrangement, the cooling space 7 is arranged above the storage space 1 and the processing space 2, ensuring the effective circulation and uniform distribution of the cooling air. And the cooling air exchanges heat with the meat in the storage space 1 through the first cooling plate 3 or the second cooling plate 4, ensuring that the meat cools down quickly and evenly, improving the cooling effect. The cooling space 7 is designed to be respectively communicated with the storage space 1 and the processing space 2, thereby providing a moving space for the first cooling plate 3 and the second cooling plate 4, so that the first cooling plate 3 and the second cooling plate 4 can successfully complete the position swapping. This design not only optimizes the utilization of space, but also simplifies the moving mechanism of the cooling plate, thereby improving the flexibility and adaptability of the system.

[0044] Optionally, the cross-sectional areas of the first cooling plate 3 and the second cooling plate 4 are the same, and the storage space 1 and the processing space 2 are each provided with a communication hole for the first cooling plate 3 or the second cooling plate 4 to pass through. The communication hole is respectively adapted to the first cooling plate 3 or the second cooling plate 4. When the first cooling plate 3 and the second cooling plate 4 are respectively opposite to the corresponding storage space 1 and processing space 2, the communication holes of the storage space 1 and the processing space 2 corresponding to the first cooling plate 3 and the second cooling plate 4 are blocked respectively, thereby preventing the cooling air from entering the storage space 1 and the processing space 2.

[0045] Specifically, as Figures 4 to 9 shown, the fresh-keeping system further includes: a first moving device 8 and a second moving device 9. The first moving device 8 is movably arranged in the cooling space 7; the first moving device 8 is connected to the first cooling plate 3, and the first moving device 8 drives the first cooling plate 3 to move between the storage space 1, the cooling space 7 and the processing space 2; the second moving device 9 is movably arranged in the cooling space 7; the second moving device 9 is connected to the second cooling plate 4, and the second moving device 9 drives the second cooling plate 4 to move between the storage space 1, the cooling space 7 and the processing space 2. With such a structural arrangement, by providing the first moving device 8 and the second moving device 9, the first cooling plate 3 and the second cooling plate 4 can be quickly and accurately driven to move between different spaces, ensuring that the position exchange process of the first cooling plate 3 and the second cooling plate 4 is efficient and reliable. And through the automated moving device, the need for manual intervention is reduced, the operation efficiency is improved, and the waiting time is reduced.

[0046] Specifically, as Figures 4 to 9As shown in the figure, the first mobile device 8 includes: a first moving member 81 and a first connecting member 82. The first moving member 81 is movably disposed in the cooling space 7 along the width direction of the box body 100. The first moving member 81 is connected to the first cooling plate 3, and the first moving member 81 drives the first cooling plate 3 to reciprocate along the width direction of the box body 100. The first connecting member 82 is telescopically disposed on the first moving member 81 along the height direction of the box body 100. The first connecting member 82 extends along the height direction of the box body 100. One end of the first connecting member 82 away from the first moving member 81 is connected to the first cooling plate 3, and the first connecting member 82 drives the first cooling plate 3 to move along the height direction of the box body 100. With such a structural arrangement, by providing the first moving member 81, the first cooling plate 3 can be driven to reciprocate along the width direction of the box body 100 in the cooling space 7. At the same time, by providing the first connecting member 82, and the first connecting member 82 is telescopically mounted on the first moving member 81 along the height direction of the box body 100, the first cooling plate 3 is driven to move vertically between the storage space 1 and the cooling space 7 or between the processing space 2 and the cooling space 7 through the extension and contraction of the first connecting member 82. Thus, through the synergistic effect of the first moving member 81 and the first connecting member 82, the first cooling plate 3 can flexibly switch positions among the storage space 1, the cooling space 7, and the processing space 2, ensuring efficient switching of the cooling plate position and stable operation of the system.

[0047] Optionally, the first moving member 81 is a first connecting rod, and the first connecting member 82 is a second connecting rod. The second connecting rod is telescopically inserted into the first connecting rod.

[0048] Specifically, as Figure 5As shown, there are two first moving members 81 and two first connecting members 82, and the two first moving members 81 and the two first connecting members 82 are arranged in one-to-one correspondence; the two first moving members 81 are arranged at intervals along the length direction of the box body 100, and the two first moving members 81 are both connected to the first cooling plate 3 through the corresponding first connecting members 82, and a first spacing is formed between the two first connecting members 82; wherein, the first spacing is greater than the length of the second cooling plate 4. With such a structural arrangement, the setting of the two first moving members 81 and the two first connecting members 82 provides double support, ensuring the stability and accuracy of the first cooling plate 3 during the moving process, and avoiding the shaking or offset problems that may be caused by single-point support. And the first moving member 81 is responsible for reciprocating movement in the horizontal direction, while the first connecting member 82 is responsible for telescopic movement in the vertical direction. This combination enables the first cooling plate 3 to flexibly switch positions among the storage space 1, the cooling space 7 and the processing space 2. In addition, the first spacing between the two first connecting members 82 is designed to be greater than the length of the second cooling plate 4, ensuring that there is enough space for operation during the position exchange process between the first cooling plate 3 and the second cooling plate 4, avoiding collision or interference between the cooling plates, and improving the safety of the system.

[0049] Specifically, as Figure 2 and Figure 6As shown, the freshness preservation system further includes: two first clamping members 10, which are arranged in one-to-one correspondence with two first connecting members 82; the two first clamping members 10 are arranged on both sides of the first cooling plate 3 at intervals along the length direction of the box body 100, and the two first clamping members 10 are used to clamp and fix the first cooling plate 3; the two first connecting members 82 are respectively connected to the corresponding first clamping members 10; wherein, the first clamping member 10 includes a first clamping member body 101 and a first extension portion 102, and the first clamping member body 101 is used to clamp the first cooling plate 3; the first extension portion 102 extends along the length direction of the box body 100; one end of the first extension portion 102 is connected to one end of the first clamping member body 101 located in the cooling space 7, the other end of the first extension portion 102 is arranged in a direction away from the first cooling plate 3, and the first connecting member 82 is connected to the other end of the first extension portion 102; so that through the first extension portion 102, the first distance is greater than the length of the second cooling plate 4. With such a structural arrangement, the two first clamping members 10 can be used to clamp and fix the first cooling plate 3, ensuring the stability and firmness of the cooling plate during movement, and avoiding the shaking or offset problems that may be caused by single-point support. And through the design of the first extension portion 102, it is ensured that the first distance between the two first connecting members 82 is greater than the length of the second cooling plate 4, avoiding the collision or interference between the cooling plates and improving the safety of the system. At the same time, the first extension portion 102 also plays a limiting role. When the first cooling plate 3 is moved to the storage space 1 or the processing space 2, the first extension portion 102 will contact the inner wall of the cooling space 7, thereby effectively limiting the vertical movement distance of the first cooling plate 3. This design ensures that the first cooling plate 3 will not be accidentally displaced due to vibration or other factors during operation.

[0050] Optionally, the ends of the two first connecting members 82 away from the corresponding first moving members 81 are respectively connected to the first cooling plate through the relative first clamping members 10.

[0051] Specifically, as Figures 4 to 9As shown, the second moving device 9 includes: a second moving member 91 and a second connecting member 92. The second moving member 91 is movably disposed in the cooling space 7 along the width direction of the box body 100. The second moving member 91 is connected to the second cooling plate 4, and the second moving member 91 drives the second cooling plate 4 to reciprocate along the width direction of the box body 100. The second connecting member 92 is telescopically disposed on the second moving member 91 along the height direction of the box body 100. The second connecting member 92 extends along the height direction of the box body 100, and one end of the second connecting member 92 away from the second moving member 91 is connected to the second cooling plate 4, and the second connecting member 92 drives the second cooling plate 4 to move along the height direction of the box body 100. Wherein, the second moving member 91 is located between the two first moving members 81. The second connecting member 92 is located between the two first connecting members 82. When the first cooling plate 3 and the second cooling plate 4 are interchanged in position, the distance between the first cooling plate 3 and the top wall of the box body 100 is greater than the distance between the second cooling plate 4 and the top wall of the box body 100, so that the second cooling plate 4 can pass through between the two first connecting members 82. With such a structural arrangement, by providing the second moving member 91, the second cooling plate 4 can be driven to reciprocate along the width direction of the box body 100 in the cooling space 7. At the same time, by providing the second connecting member 92, and the second connecting member 92 is telescopically disposed on the second moving member 91 along the height direction of the box body 100, the second cooling plate 4 is driven to move vertically between the storage space 1 and the cooling space 7 or between the processing space 2 and the cooling space 7 through the extension and contraction of the second connecting member 92. Thus, through the cooperation of the second moving member 91 and the second connecting member 92, the second cooling plate 4 can flexibly switch positions among the storage space 1, the cooling space 7 and the processing space 2, ensuring efficient switching of the positions of the cooling plates and the stable operation of the system. In addition, by disposing the second moving member 91 between the two first moving members 81 and the second connecting member 92 between the two first connecting members 82, it is possible to avoid collision or interference between the second moving member 91 and the first moving member 81 and between the second connecting member 92 and the first connecting member 82 when the first cooling plate 3 and the second cooling plate 4 are exchanging positions, improving the safety of the system.

[0052] Optionally, when the position is exchanged, when the second cooling plate 4 and the first cooling plate 3 move upward along the height direction of the box body 100, the second cooling plate 4 moves above the first cooling plate 3 to facilitate the second cooling plate 4 to pass through between the two first connecting members 82.

[0053] Specifically, as Figure 5As shown, there are two second moving members 91 and two second connecting members 92. The two second moving members 91 and the two second connecting members 92 are arranged in one-to-one correspondence. The two second moving members 91 are arranged at intervals along the length direction of the box body 100, and the two second moving members 91 are both connected to the second cooling plate 4 through the corresponding second connecting members 92, and a second distance is formed between the two second connecting members 92. Among them, the second distance is smaller than the first distance. With such a structural arrangement, the setting of the two second moving members 91 and the two second connecting members 92 provides double support, ensuring the stability and accuracy of the second cooling plate 4 during the moving process, and avoiding the shaking or offset problems that may be caused by single-point support. And the second moving member 91 is responsible for the reciprocating movement in the horizontal direction, while the second connecting member 92 is responsible for the telescopic movement in the vertical direction. This combination enables the second cooling plate 4 to flexibly switch positions among the storage space 1, the cooling space 7, and the processing space 2. In addition, the second distance between the two second connecting members 92 is designed to be smaller than the first distance, ensuring that there is enough space for operation during the position interchange process of the first cooling plate 3 and the second cooling plate 4, avoiding collisions or interferences between the cooling plates, and improving the safety of the system.

[0054] Optionally, the second moving member 91 is a third link, and the second connecting member 92 is a fourth link. The fourth link is telescopically inserted on the third link.

[0055] Optionally, the two second moving members 91 are both located between the two first moving members 81, and the two second connecting members 92 are both located between the two second moving members 91. Each first moving member 81 and each second moving member 91 are arranged at intervals along the length direction of the box body 100 (such as Figure 5 the direction indicated by the arrow F in the figure); each first moving member 81 and each second connecting member 92 are arranged at intervals along the length direction of the box body 100 (such as Figure 5 the direction indicated by the arrow F in the figure).

[0056] Specifically, as shown in Figure 3 and Figure 6As shown in the figure, the fresh-keeping system further includes: two second clamping members 11, which are arranged on both sides of the second cooling plate 4 at intervals along the length direction of the box body 100, and the two second clamping members 11 are used to clamp and fix the second cooling plate 4. The second moving device 9 further includes: two fixing members 93, which are arranged on the second cooling plate 4 at intervals along the length direction of the box body 100, and the two fixing members 93 are respectively arranged in one-to-one correspondence with the two second connecting members 92 and the two second clamping members 11. One ends of the two fixing members 93 are respectively connected to the corresponding second connecting members 92, and the other ends of the two fixing members 93 are arranged in the direction away from the second connecting members 92 along the length direction of the box body 100, and the other ends of the two fixing members 93 are respectively connected to the corresponding second clamping members 11. With such a structural arrangement, the second cooling plate 4 can be clamped and fixed by arranging the two second clamping members 11, ensuring the stability and firmness of the second cooling plate 4 during the movement process, and avoiding the shaking or offset problems that may be caused by single-point support. At the same time, by arranging the two fixing members 93, the two second connecting members 92 can be respectively connected to the corresponding second clamping members 11, so that in addition to ensuring that there is no interference and collision when the positions of the first cooling plate 3 and the second cooling plate 4 are interchanged, a stable connection can also be formed between the second connecting member 92 and the second clamping member 11, thereby ensuring the stability and reliability of the second cooling plate 4 during the movement process. In addition, the arrangement of the two fixing members 93 can also disperse the acting force, reduce the stress concentration caused by the movement, and further improve the durability and safety of the fresh-keeping system.

[0057] Further, as Figure 3 and Figure 6 shown, the second clamping member 11 includes a second clamping member body 111 and a second extension portion 112. The second clamping member body 111 is used to clamp the second cooling plate 4; the second extension portion 112 extends along the length direction of the box body 100; one end of the second extension portion 112 is respectively connected to one end of the second clamping member body 111 located in the cooling space 7 and the corresponding fixing member 93, and the other end of the second extension portion 112 is arranged in the direction away from the second cooling plate 4. With such a structural arrangement, the second extension portion 112 plays a limiting role. When the second cooling plate 4 is moved to the storage space 1 or the processing space 2, the second extension portion 112 will contact the inner wall of the cooling space 7, thereby effectively limiting the vertical movement distance of the second cooling plate 4. This design ensures that the second cooling plate 4 will not be accidentally displaced due to vibration or other factors during the operation process.

[0058] Specifically, as Figure 7As shown in the figure, the freshness preservation system further includes: two first slide rails 16 and two second slide rails 17. The two first slide rails 16 and the two second slide rails 17 are arranged at intervals in the cooling space 7, and the two first slide rails 16 and the two second slide rails 17 are located on the top wall of the box body 100. The two first slide rails 16 and the two second slide rails 17 both extend along the width direction of the box body 100. The two first slide rails 16 are arranged in one-to-one correspondence with the two first moving members 81, and the two first moving members 81 are movably arranged on the corresponding first slide rails 16 along the extending direction of the first slide rails 16. The two second slide rails 17 are arranged in one-to-one correspondence with the two second moving members 91, and the two second moving members 91 are movably arranged on the corresponding second slide rails 17 along the extending direction of the second slide rails 17. The two second slide rails 17 are located between the two first slide rails 16.

[0059] Specifically, as Figure 1 As shown in the figure, the freshness preservation system further includes: a first grille filter 12 and a first weight detection device 13. The first grille filter 12 is detachably arranged in the storage space 1, and the first grille filter 12 is located at the bottom of the storage space 1; the meat stored in the storage space 1 is placed on the first grille filter 12; the first weight detection device 13 is arranged inside the inner wall of the storage space 1, and the first weight detection device 13 is located on one side of the first grille filter 12. The first weight detection device 13 is used to detect the weight of the meat stored in the storage space 1; wherein, the time for the interchange of the positions of the first cooling tray 3 and the second cooling tray 4 is adaptively adjusted according to the weight of the meat in the storage space 1 detected by the first weight detection device 13. With such a structural arrangement, by providing the first grille filter 12, when the meat is placed on the first grille filter 12, the contact area between the bottom surface of the meat and the air can be increased, which is beneficial to the cooling of the food. At the same time, the uniform small holes on the first grille filter 12 can prevent the growth of microorganisms on the bottom surface of the food ingredients. Meanwhile, the first grille filter 12 is detachably arranged in the storage space 1 for easy cleaning of the first grille filter 12. In addition, by providing the first weight detection device 13, the weight of the meat in the storage space 1 can be monitored in real time, providing accurate data support to ensure the intelligent management of the system. And by dynamically adjusting the time for the interchange of the positions of the cooling trays according to the weight of the meat, the optimization of the cooling effect is ensured. Also, by adaptively adjusting the time for the interchange of the positions of the first cooling tray 3 and the second cooling tray 4 according to the weight of the meat in the storage space 1 detected by the first weight detection device 13, the temperature in the storage space 1 can be kept stable all the time, reducing the temperature fluctuations caused by frequent operations and improving the freshness and shelf life of the meat.

[0060] Optionally, the first weight detection device 13 is a first weight sensor.

[0061] Specifically, as Figure 1As shown in the figure, the fresh-keeping system further includes: a second grid filter screen 14 and a second weight detection device 15. The second grid filter screen 14 is detachably arranged in the processing space 2 and is located at the bottom of the processing space 2; the second grid filter screen 14 is used for placing the ingredients to be processed; the second weight detection device 15 is arranged inside the inner wall of the processing space 2 and is located on one side of the second grid filter screen 14. The second weight detection device 15 is used for detecting the weight of the ingredients to be processed in the processing space 2. Among them, the microwave generating device 5 is also used for processing the ingredients to be processed. The microwave generating device 5 adaptively adjusts the processing time of the ingredients according to the weight of the ingredients to be processed detected by the second weight detection device 15 and the processing instruction. With such a structural arrangement, by setting the second grid filter screen 14, when the ingredients to be processed are placed on the second grid filter screen 14, the contact area between the bottom surface of the ingredients and the air can be increased, which is beneficial to food cooling. At the same time, the uniform small holes on the second grid filter screen 14 can prevent the growth of microorganisms on the bottom surface of the ingredients. Meanwhile, the second grid filter screen 14 is detachably arranged in the processing space 2 for easy cleaning of the second grid filter screen 14. In addition, by setting the second weight detection device 15, the weight of the ingredients to be processed in the processing space 2 can be monitored in real time, providing accurate data support to ensure the intelligent management of the system. And the microwave generating device 5 adaptively adjusts the processing time of the ingredients according to the weight of the ingredients to be processed detected by the second weight detection device 15 and the processing instruction, ensuring the optimization of the processing effect, thereby improving the quality and taste of the food, as well as the flexibility and adaptability of the system.

[0062] Among them, the processing instruction is issued by the user, and the processing instruction may include a thawing instruction and a fruit and vegetable drying instruction.

[0063] Optionally, the second weight detection device 15 is a second weight sensor.

[0064] Specifically, as Figure 9 shown, the microwave generating device 5 includes a magnetron 51. The magnetron 51 is used for providing microwave energy. The magnetron 51 is divided into an anode 511 and a cathode 512. The material of the anode 511 is generally composed of a metal material with good electrical conductivity (such as oxygen-free copper with high electrical conductivity), forming a tank circuit 53 for high-frequency oscillation. The cathode 512 is used for emitting electrons. The material of the cathode 512 is generally composed of tungsten wire or pure tungsten wire wound into a spiral shape. When the magnetron 51 is powered on to generate voltage, the electrons emitted by the cathode 512 flow vertically towards the anode and are accelerated. Since there is a magnetic field in the space and it is perpendicular to the electric field direction, the electrons are affected by the magnetic force and the movement trajectory is deflected to form a circular motion, thereby generating microwave 54. The microwave is propagated by the antenna 55 and the waveguide 56 to process the ingredients placed in the processing space 2. Among them, the antenna 55 is generally strip-shaped or rod-shaped. The waveguide 56 is arranged on the outer wall of the processing space 2.

[0065] Furthermore, a cooling channel 18 is provided inside the box body 100. The cooling channel 18 extends along the height direction of the box body 100. The cooling channel 18 is located on the side of the processing space 2 away from the storage space 1. The cooling channel 18 communicates with the cooling space 7 and is used for cooling the air circulation. Among them, the waveguide 56 is located inside the cooling channel 18, and the cooling air flowing through the cooling channel 18 is used to dissipate heat from the waveguide 56. Appropriate heat dissipation can ensure the normal operation of the microwave generating device 5, thereby improving the energy conversion efficiency. Excessive temperature of the waveguide 56 may cause microwave energy loss, and timely heat dissipation can ensure that more microwave energy is used for food processing, improving the processing efficiency.

[0066] The present invention provides a refrigerator, including: the freshness preservation system of the above embodiment. With such a structural arrangement, the beneficial effects achieved by setting the freshness preservation system of the above embodiment in the refrigerator are the same as those of the freshness preservation system of the above embodiment, and will not be elaborated here.

[0067] The present invention provides a control method, which is applied to the freshness preservation system of the above embodiment, as Figure 10 shown. The control method includes: S11, determining whether to swap the positions of the cooling trays in the storage space 1 and the processing space 2.

[0068] S12, if the position swap is required, after the position swap is completed, the microwave generating device 5 is turned on to defrost the first cooling tray 3 or the second cooling tray 4 that has been swapped into the processing space 2.

[0069] S13, the microwave generating device 5 adaptively adjusts the defrosting duration according to the frosting state of the first cooling tray 3 or the second cooling tray 4 in the processing space 2.

[0070] Adopting such a control method, by judging whether to swap the positions of the cooling plates in the storage space 1 and the cooling plates in the processing space 2, the positions of the cooling plates in the storage space 1 and the cooling plates in the processing space 2 can be effectively adjusted according to the actual situation, thereby effectively reducing the thickness of ice and frost on the surface of the cooling plates in the storage space 1. This enables the cooling plates in the storage space to always maintain the best working state, ensuring a stable low temperature in the meat storage environment, avoiding temperature fluctuations caused by ice formation or frosting, and thus improving the cooling rate of the meat. This position swapping mechanism can ensure that the food is stored in a suitable environment, prolonging its freshness and shelf life. And by using the microwave generating device 5 to defrost the first cooling plate 3 or the second cooling plate 4 that has been swapped into the processing space 2, the cooling plates can be defrosted quickly and accurately, avoiding the problems of incomplete defrosting or over-defrosting in the traditional method, and thus keeping the cooling plates clean and efficient. In addition, the microwave generating device 5 adaptively adjusts the defrosting duration according to the frosting state of the first cooling plate 3 or the frosting state of the second cooling plate 4 in the processing space 2, thereby avoiding the problems of over-defrosting or incomplete defrosting, improving the defrosting efficiency and effect, and also significantly reducing unnecessary energy consumption and improving the overall energy efficiency ratio of the system. Furthermore, through the optimized cooling and defrosting strategies, the system ensures that the meat is always in a uniform low temperature environment throughout the storage process, reducing local temperature differences, which helps to extend the shelf life of the meat. At the same time, the system provides a stable low temperature environment, reducing the breeding opportunities of bacteria and other microorganisms, ensuring the freshness and safety of the meat.

[0071] Specifically, the method by which the microwave generating device 5 adaptively adjusts the defrosting duration according to the frosting state of the first cooling plate 3 or the frosting state of the second cooling plate 4 in the processing space 2 includes: after the position swapping is completed, the photoelectric detection device 6 detects the frosting state of the first cooling plate 3 or the frosting state of the second cooling plate 4 in the processing space 2; if the shielding rate of the frost layer on the first cooling plate 3 or the frost layer on the second cooling plate 4 to the signal emitted by the photoelectric detection device 6 is greater than or equal to the preset shielding rate, the defrosting duration of the microwave generating device 5 is adjusted to the first preset duration; if the shielding rate of the frost layer on the first cooling plate 3 or the frost layer on the second cooling plate 4 to the signal emitted by the photoelectric detection device 6 is less than the preset shielding rate, the defrosting duration of the microwave generating device 5 is adjusted to the second preset duration; wherein, the first preset duration is greater than the second preset duration. Adopting such a control method, by detecting the frosting state of the cooling plates through the photoelectric detection device 6 and intelligently adjusting the defrosting duration of the microwave generating device 5 according to the shielding rate, the efficiency and accuracy of the defrosting process are ensured. And it can effectively avoid over-defrosting. Also, by timely and effective defrosting treatment, the best working state of the cooling plates can be maintained, the heat exchange efficiency can be improved, and the temperature stability in the storage space 1 can be ensured.

[0072] Optionally, the preset shielding rate is set to 50%. After the optoelectronic detection device 6 is turned on to detect the frosting state of the first cooling tray 3 or the frosting state of the second cooling tray 4 in the processing space 2, the duration of turning on the microwave generating device 5 (i.e., the defrosting duration) is determined according to the degree of infrared shielding. When the shielding rate of the frost layer on the first cooling tray 3 or the second cooling tray 4 to the infrared rays emitted by the optoelectronic detection device 6 is greater than or equal to 50%, the defrosting duration of the microwave generating device 5 is the first preset duration. When the shielding rate of the frost layer on the first cooling tray 3 or the second cooling tray 4 to the infrared rays emitted by the optoelectronic detection device 6 is less than 50%, the defrosting duration of the microwave generating device 5 is the second preset duration.

[0073] Preferably, the first preset duration is set to 2 min, and the second preset duration is 1 min.

[0074] Specifically, the method for determining whether to swap the positions of the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2 includes: obtaining the current storage weight in the storage space 1; determining, according to the current storage weight, the time for swapping the positions of the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2, and starting timing; if the timing time reaches the position swapping time, swap the positions of the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2. By adopting such a control method, by real-time detecting the current storage weight in the storage space 1 and determining, according to the current storage weight, the time for swapping the positions of the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2, the temperature in the storage space 1 can be ensured to be always stable, the temperature fluctuation caused by frequent operations is reduced, and the freshness and shelf life of the meat are improved.

[0075] Optionally, the freshness preservation system further includes a timing module for timing through the timing module.

[0076] Wherein, the current storage weight refers to the weight of the meat placed in the current storage space 1.

[0077] Specifically, a method for determining the time when the first cooling tray 3 or the second cooling tray 4 in the storage space 1 is swapped with the other cooling tray in the processing space 2 according to the current stored weight includes: when the current stored weight is less than the first preset weight, the time for swapping the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2 is the first preset time; when the current stored weight is greater than or equal to the first preset weight and less than the second preset weight, the time for swapping the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2 is the second preset time; when the current stored weight is greater than or equal to the second preset weight and less than the third preset weight, the time for swapping the first cooling tray 3 or the second cooling tray 4 in the storage space 1 with the other cooling tray in the processing space 2 is the third preset time; wherein, the second preset weight is less than the third preset weight and greater than the first preset weight; the second preset time is greater than the third preset time and less than the first preset time. By adopting such a control method, the swapping time of the cooling trays is dynamically adjusted according to the actual stored weight, ensuring that the temperature in the storage space is always stable, reducing the temperature fluctuations caused by frequent operations, improving the food preservation quality and optimizing the cooling efficiency. And by means of a reasonable swapping strategy, the influence of the cooling tray position swapping on the temperature of the storage space is reduced, maintaining a stable low-temperature environment.

[0078] Optionally, when the stored weight is light, a longer first preset time is adopted for swapping the cooling trays, reducing unnecessary frequent operations, saving energy and improving the energy efficiency ratio of the system. When the stored weight is large, a shorter third preset time is adopted for swapping the cooling trays to ensure the best cooling effect and avoid the decline of food quality caused by insufficient cooling.

[0079] Optionally, when it is detected that the weight of the meat first placed in the storage space 1 is less than the first preset weight, the timing module will start timing according to the first preset time. During the timing process, if the user puts meat into the storage space 1 for the second time and it is detected that the total weight in the storage space 1 at this time is greater than the first preset weight but less than the second preset weight, the timing module will continue to time, but the timing end time will be adjusted to the second preset time.

[0080] Optionally, the first preset weight is set to 1 kg, the second preset weight is set to 3 kg, the third preset weight is set to 5 kg, the first preset time is set to 48 h, the second preset time is set to 24 h, and the third preset time is set to 12 h.

[0081] Specifically, the microwave generating device 5 is also used to process the food ingredients to be processed in the processing space 2; the control method further includes: when the food ingredients to be processed are placed in the processing space 2, determining the weight of the food ingredients to be processed placed in the processing space 2; the microwave generating device 5 processes the food ingredients according to the processing instruction, and adaptively adjusts the processing duration of the food ingredients according to the weight of the food ingredients to be processed. By adopting such a control method, the processing duration is dynamically adjusted according to the weight of the food ingredients to be processed, ensuring that the best processing effect can be obtained for each batch of food ingredients, improving the quality and taste of the food. And by dynamically adjusting the time according to the weight, the processing power can be optimized, saving energy while ensuring complete thawing or drying. In addition, the system automatically adjusts the processing strategy according to the weight of different food ingredients and user requirements, enhancing the flexibility and adaptability of the system and being applicable to a variety of application scenarios. The microwave generating device 5 is not only used for defrosting, but also for food ingredient processing, realizing the multi-functional integration of the device, improving the utilization rate of the device and economic benefits.

[0082] Specifically, the method for the microwave generating device 5 to adaptively adjust the processing duration of the food ingredients according to the weight of the food ingredients to be processed includes: when the weight of the food ingredients to be processed placed in the processing space 2 is less than the fourth preset weight, the processing duration of the food ingredients by the microwave generating device 5 is the third preset duration; when the weight of the food ingredients to be processed placed in the processing space 2 is greater than or equal to the fourth preset weight and less than the fifth preset weight, the processing duration of the food ingredients by the microwave generating device 5 is the fourth preset duration; when the weight of the food ingredients to be processed placed in the processing space 2 is greater than or equal to the fifth preset weight and less than the sixth preset weight, the processing duration of the food ingredients by the microwave generating device 5 is the fifth preset duration; wherein, the fifth preset weight is less than the sixth preset weight, and the fifth preset weight is greater than the fourth preset weight; the fourth preset duration is less than the fifth preset duration, and the fourth preset duration is greater than the third preset duration. By adopting such a control method, the processing duration is dynamically adjusted according to the actual weight of the food ingredients to be processed, thereby ensuring that the best processing effect can be obtained for each processing of the food ingredients, improving the quality and taste of the food. Thus, the quality and taste of the food are improved.

[0083] Optionally, the processing instruction includes a meat thawing instruction and a fruit and vegetable drying instruction. When the user places meat in the processing space 2 and sends a thawing instruction, first obtain the weight of the meat to be thawed, and then obtain the thawing duration. After the microwave generating device 5 receives the thawing duration, it thaws the meat according to the thawing duration, and when the thawing duration is reached, the microwave generating device 5 stops thawing.

[0084] Optionally, the fourth preset weight is 200 g, the fifth preset weight is 400 g, and the sixth preset weight is 600 g. When the processing instruction is a meat thawing instruction, the third preset duration is 5 min, the fourth preset duration is 10 min, and the fifth preset duration is 15 min. When the processing instruction is a fruit and vegetable drying instruction, the third preset duration is 4 min, the fourth preset duration is 6 min, and the fifth preset duration is 8 min.

[0085] Specifically, the control method further includes: the microwave generating device 5 calculates the required working power of the microwave generating device 5 correspondingly according to the defrosting instruction and different processing instructions; the calculation formula is: ; where is the microwave working frequency, with the unit of Hz, is the relative dielectric constant, is the dielectric loss angle, is the effective value of the microwave electric field strength, with the unit of V / m. By adopting such a control method, the system can save energy to the greatest extent and reduce the operation cost on the premise of ensuring the processing effect by adjusting the working power according to the actual demand. Reasonable power control reduces the load and wear of the equipment and extends the service life of the microwave generating device 5 and other components.

[0086] Optionally, the determination of the working power of the microwave generating device 5: The microwave working frequency f is the default value, which is 2.45 GHz (2.45 * 10 9 Hz), and the effective value of the microwave electric field strength is the default value, which is 700 V / m.

[0087] For frost is 8.5, is 0.01. Therefore, the working power of the microwave generating device 5 during defrosting .

[0088] For meat is 10, is 0.1. Therefore, the working power of the microwave generating device 5 during thawing .

[0089] For fruits and vegetables is 9, is 0.05. Therefore, the working power of the microwave generating device 5 during fruit and vegetable drying .

[0090] Optionally, the working process of the freshness preservation system is as follows: In the initial state, the first cooling plate 3 is located in the storage space 1, and the second cooling plate 4 is located in the processing space 2.

[0091] Step 1, when the user places the meat into the storage space 1, the cooling air cools the meat by passing through the first cooling plate 3. Meanwhile, the first weight detection device 13 detects the weight of the meat in the current storage space 1. The control device determines the time for position exchange based on the weight detected by the first weight detection device 13 and sends this time to the timing module, and the timing module starts timing. During the timing process, the first weight detection device 13 will detect the weight of the meat in the storage space 1 in real time and send the result of each detection to the control device, and the control device determines whether to adjust the time for position exchange.

[0092] Step 2, when there is no need to adjust the time for position exchange, after the timing module finishes timing, perform position exchange: specifically: Step 21, the first connecting piece 82 contracts, thereby driving the first cooling plate 3 to move vertically upward, thus driving the first cooling plate 3 to move into the cooling space 7. Meanwhile, the second connecting piece 92 contracts, thereby driving the second cooling plate 4 to move vertically upward, thus driving the second cooling plate 4 to move into the cooling space 7. When the first connecting piece 82 drives the first cooling plate 3 to move to the specified height, the first connecting piece 82 stops telescoping. Meanwhile, when the second connecting piece 92 drives the second cooling plate 4 to move to the specified height, the second connecting piece 92 stops telescoping. At this time, the distance between the first cooling plate 3 and the top wall of the box body 100 is greater than the distance between the second cooling plate 4 and the top wall of the box body 100.

[0093] Step 22, after the first connecting piece 82 and the second connecting piece 92 stop telescoping, the first moving piece 81 drives the first cooling plate 3 to move in the width direction of the box body 100 towards the processing space 2. Meanwhile, the second moving piece 91 drives the second cooling plate 4 to move in the width direction of the box body 100 towards the storage space 1. During the movement, the second cooling plate 4 passes through between the two first connecting pieces 82.

[0094] Step 23, when the first moving piece 81 drives the first cooling plate 3 to move to the specified position, the first connecting piece 82 extends, thereby driving the first cooling plate 3 to move vertically downward, thus driving the first cooling plate 3 to move into the processing space 2. When the first extension part 102 abuts against the inner wall of the cooling space 7, the first connecting piece 82 stops acting. Meanwhile, the second connecting piece 92 extends, thereby driving the second cooling plate 4 to move vertically downward, thus driving the second cooling plate 4 to move into the storage space 1. When the second extension part 112 abuts against the inner wall of the cooling space 7, the second connecting piece 92 stops acting. At this time, the cooling air cools the meat by passing through the second cooling plate 4.

[0095] Step 3, after the first cooling plate 3 is moved into the processing space 2, the emitter 61 and the receiver 62 are activated. The emitter 61 emits infrared rays, and the receiver 62 receives the infrared rays emitted by the emitter 61. The receiver 62 converts the received infrared rays into electrical signals (usually current signals, referring to current signals and voltage signals here). Then, by detecting the changes in the current signals and voltage signals, the degree of infrared ray occlusion by the frost layer on the first cooling plate 3 can be obtained.

[0096] Step 4, when the occlusion rate of the infrared rays emitted by the emitter 61 by the frost layer on the first cooling plate 3 is greater than or equal to 50% (i.e., the preset occlusion rate), it is determined that the defrosting duration of the microwave generating device 5 is the first preset duration. When the occlusion rate of the infrared rays emitted by the first cooling plate 3 by the frost on the optoelectronic detection device 6 is less than 50% (i.e., the preset occlusion rate), it is determined that the defrosting duration of the microwave generating device 5 is the second preset duration. Then, the microwave generating device 5 performs defrosting treatment on the first cooling plate 3 according to the determined defrosting duration. When the time reaches the first preset duration or the second preset duration, the microwave generating device 5 stops working.

[0097] Step 5, when the user needs to defrost meat, place the meat to be defrosted into the processing space 2, and then the user sends a meat defrosting instruction. At this time, the microwave generating device 5 adjusts its working power according to the instruction. Meanwhile, the second weight detection device 15 detects the weight of the meat placed in the processing space 2 and sends the detected result to the control device. After receiving the weight of the meat in the current processing space 2, the control device determines the defrosting duration required. Then, the microwave generating device 5 performs defrosting according to the determined defrosting duration. When the time reaches the determined defrosting duration, the microwave generating device 5 stops working.

[0098] Step 6, when the user needs to dry fruits and vegetables, place the fruits and vegetables to be dried into the processing space 2, and then the user sends a fruits and vegetables drying instruction. At this time, the microwave generating device 5 adjusts its working power according to the instruction. Meanwhile, the second weight detection device 15 detects the weight of the fruits and vegetables placed in the processing space 2 and sends the detected result to the control device. After receiving the weight of the fruits and vegetables in the current processing space 2, the control device determines the drying duration required. Then, the microwave generating device 5 operates according to the determined drying duration. When the time reaches the determined drying duration, the microwave generating device 5 stops working.

[0099] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0100] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and will not be elaborated here.

[0101] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0102] In the above embodiments of this application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0103] The above are only the preferred embodiments of this application. It should be noted that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of this application.

Claims

1. A fresh-keeping system, characterized in that: include: A storage space (1) and a processing space (2), wherein the storage space (1) is used to store meat; and the processing space (2) is used to place food to be processed; A first cooling plate (3) and a second cooling plate (4), wherein the first cooling plate (3) and the second cooling plate (4) are both movably arranged; the first cooling plate (3) and the second cooling plate (4) are capable of exchanging positions between the storage space (1) and the processing space (2); a microwave generating device (5), at least a portion of the microwave generating device (5) being arranged in the processing space (2), and the microwave generating device (5) being used to defrost the first cooling plate (3) or the second cooling plate (4); When the cooling plate in the storage space (1) and the cooling plate in the processing space (2) have been swapped, the microwave generating device (5) performs a defrosting process on the first cooling plate (3) or the second cooling plate (4) that has been swapped to the processing space (2), and adaptively adjusts the defrosting time.

2. The fresh-keeping system according to claim 1, characterized in that: The fresh-keeping system further comprises: a photoelectric detection device (6), the photoelectric detection device (6) being arranged in the processing space (2), the photoelectric detection device (6) being used to detect the frosting state of the first cooling plate (3) or the frosting state of the second cooling plate (4) which has been replaced in the processing space (2); the microwave generating device (5) being connected to the photoelectric detection device (6), the microwave generating device (5) being used to adaptively adjust the defrosting time according to the detection result of the photoelectric detection device (6).

3. The fresh-keeping system according to claim 2, characterized in that: The photoelectric detection device (6) comprises: a transmitter (61) and a receiver (62); the transmitter (61) and the receiver (62) are arranged at intervals in the processing space (2), and the transmitter (61) and the receiver (62) are respectively located on two sides of a cooling disk in the processing space (2); the transmitter (61) is used to transmit a signal, and the receiver (62) is used to receive the signal transmitted by the transmitter (61); and the frosting state of the first cooling disk (3) or the frosting state of the second cooling disk (4) in the processing space (2) is detected by the strength of the signal received by the receiver (62).

4. The fresh-keeping system according to claim 1, characterized in that: The fresh-keeping system also includes: A box body (100), wherein the storage space (1), the processing space (2) and the cooling space (7) are arranged in intervals in the box body (100), the storage space (1) and the processing space (2) are arranged in sequence along the width direction of the box body (100), and the cooling space (7) is located above the storage space (1) and the processing space (2); the cooling space (7) is used for cooling air circulation, and the cooling air is used to exchange heat with the meat in the storage space (1) through the first cooling plate (3) or the second cooling plate (4); the cooling space (7) is communicated with the storage space (1) and the processing space (2) respectively; When it is necessary to exchange the position of the first cooling plate (3) or the second cooling plate (4) in the storage space (1) with another cooling plate in the processing space (2), the first cooling plate (3) and the second cooling plate (4) are both moved into the cooling space (7), and the first cooling plate (3) and the second cooling plate (4) are exchanged in the cooling space (7); when the exchange of positions is completed, the corresponding storage space (1) and the processing space (2) are respectively blocked by the first cooling plate (3) and the second cooling plate (4).

5. The fresh-keeping system according to claim 4, characterized in that: The fresh-keeping system also includes: A first moving device (8) is movably arranged in the cooling space (7); the first moving device (8) is connected to the first cooling plate (3), and the first moving device (8) drives the first cooling plate (3) to move between the storage space (1), the cooling space (7) and the processing space (2); A second moving device (9) is movably arranged in the cooling space (7); the second moving device (9) is connected to the second cooling plate (4), and the second moving device (9) drives the second cooling plate (4) to move between the storage space (1), the cooling space (7) and the processing space (2).

6. The fresh-keeping system according to claim 5, characterized in that: The first moving device (8) comprises: a first movable member (81), the first movable member (81) being movably arranged in the cooling space (7) along the width direction of the box body (100), the first movable member (81) being connected to the first cooling plate (3), the first movable member (81) driving the first cooling plate (3) to reciprocate along the width direction of the box body (100); A first connecting member (82), the first connecting member (82) is telescopically arranged on the first movable member (81) along the height direction of the box body (100); the first connecting member (82) extends along the height direction of the box body (100), one end of the first connecting member (82) away from the first movable member (81) is connected to the first cooling plate (3), and the first connecting member (82) drives the first cooling plate (3) to move along the height direction of the box body (100).

7. The fresh-keeping system according to claim 6, characterized in that: There are two of each of the first moving members (81) and the first connecting members (82), and the two first moving members (81) and the two first connecting members (82) are arranged in a one-to-one correspondence; the two first moving members (81) are arranged at intervals along the length direction of the box body (100), and the two first moving members (81) are connected to the first cooling plate (3) through the corresponding first connecting members (82), and a first distance is formed between the two first connecting members (82); Wherein, the first spacing is greater than the length of the second cooling plate (4).

8. The fresh-keeping system according to claim 7, characterized in that: The fresh-keeping system further comprises: two first clamping members (10), the two first clamping members (10) being arranged in one-to-one correspondence with the two first connecting members (82); the two first clamping members (10) being arranged at intervals on both sides of the first cooling plate (3) along the length direction of the box body (100), the two first clamping members (10) being used to clamp and fix the first cooling plate (3); the two first connecting members (82) being respectively connected to the corresponding first clamping members (10); The first clamping member (10) comprises a first clamping member body (101) and a first extension portion (102), wherein the first clamping member body (101) is used to clamp the first cooling plate (3); the first extension portion (102) extends along the length direction of the box body (100); one end of the first extension portion (102) is connected to one end of the first clamping member body (101) located in the cooling space (7), the other end of the first extension portion (102) is arranged in a direction away from the first cooling plate (3), and the first connecting member (82) is connected to the other end of the first extension portion (102); so that the first distance is greater than the length of the second cooling plate (4) through the first extension portion (102).

9. The fresh-keeping system according to claim 7, characterized in that: The second moving device (9) comprises: a second movable member (91), the second movable member (91) being movably arranged in the cooling space (7) along the width direction of the box body (100), the second movable member (91) being connected to the second cooling plate (4), the second movable member (91) driving the second cooling plate (4) to reciprocate along the width direction of the box body (100); a second connecting member (92), the second connecting member (92) being telescopically arranged on the second movable member (91) along the height direction of the box body (100); the second connecting member (92) extending along the height direction of the box body (100), an end of the second connecting member (92) away from the second movable member (91) being connected to the second cooling plate (4), and the second connecting member (92) driving the second cooling plate (4) to move along the height direction of the box body (100); The second movable member (91) is located between the two first movable members (81); the second connecting member (92) is located between the two first connecting members (82); when the first cooling plate (3) and the second cooling plate (4) are interchanged, the distance between the first cooling plate (3) and the top wall of the box body (100) is greater than the distance between the second cooling plate (4) and the top wall of the box body (100), so that the second cooling plate (4) passes between the two first connecting members (82).

10. The fresh-keeping system according to claim 9, characterized in that: There are two of each of the second moving members (91) and the second connecting members (92), and the two second moving members (91) and the two second connecting members (92) are arranged in a one-to-one correspondence; the two second moving members (91) are arranged at intervals along the length direction of the box body (100), and the two second moving members (91) are connected to the second cooling plate (4) through the corresponding second connecting members (92), and a second distance is formed between the two second connecting members (92); The second spacing is smaller than the first spacing.

11. The fresh-keeping system according to claim 10, characterized in that: The fresh-keeping system further comprises: two second clamping members (11), the two second clamping members (11) being arranged at intervals on both sides of the second cooling plate (4) along the length direction of the box body (100), the two second clamping members (11) being used to clamp and fix the second cooling plate (4); The second moving device (9) also includes: two fixing members (93), the two fixing members (93) are arranged on the second cooling plate (4) at intervals along the length direction of the box body (100), the two fixing members (93) are respectively arranged in a one-to-one correspondence with the two second connecting members (92) and the two second clamping members (11), one end of the two fixing members (93) is respectively connected to the corresponding second connecting members (92), and the other end of the two fixing members (93) is arranged along the length direction of the box body (100) in a direction away from the second connecting member (92); and the other end of the two fixing members (93) is respectively connected to the corresponding second clamping members (11).

12. The fresh-keeping system according to claim 1, characterized in that: The fresh-keeping system also includes: A first grille filter (12) is detachably arranged in the storage space (1), and the first grille filter (12) is located at the bottom of the storage space (1); the meat stored in the storage space (1) is placed on the first grille filter (12); a first weight detection device (13) disposed in an inner wall of the storage space (1), and the first weight detection device (13) is located on one side of the first grille filter (12), the first weight detection device (13) being used to detect the weight of the meat stored in the storage space (1); Wherein, the time for exchanging the positions of the first cooling plate (3) and the second cooling plate (4) is adaptively adjusted according to the weight of the meat in the storage space (1) detected by the first weight detection device (13).

13. The fresh-keeping system according to claim 1, characterized in that: The fresh-keeping system also includes: A second grille filter (14) is detachably arranged in the processing space (2), and the second grille filter (14) is located at the bottom of the processing space (2); the second grille filter (14) is used for placing food to be processed; a second weight detection device (15) arranged in the inner wall of the processing space (2), and the second weight detection device (15) is located on one side of the second grill filter (14), the second weight detection device (15) being used to detect the weight of the food to be processed in the processing space (2); The microwave generating device (5) is also used to process the food to be processed, and the microwave generating device (5) adaptively adjusts the processing time of the food according to the weight of the food to be processed and the processing instruction detected by the second weight detection device (15).

14. A refrigerator, characterized in that: include: The fresh-keeping system according to any one of claims 1 to 13.

15. A control method, characterized in that: The control method is applied to the fresh-keeping system according to any one of claims 1 to 13, and the control method comprises: Determining whether to swap the positions of the cooling disk in the storage space (1) and the cooling disk in the processing space (2); If position exchange is required, after the position exchange is completed, the microwave generating device (5) is turned on to perform a defrosting process on the first cooling plate (3) or the second cooling plate (4) that has been exchanged into the processing space (2); The microwave generating device (5) adaptively adjusts the defrosting time according to the frosting state of the first cooling plate (3) or the frosting state of the second cooling plate (4) in the processing space (2).

16. The control method according to claim 15, characterized in that: The control method is applied to the fresh-keeping system according to claim 2; the method in which the microwave generating device (5) adaptively adjusts the defrosting time according to the frosting state of the first cooling plate (3) or the frosting state of the second cooling plate (4) in the processing space (2) comprises: After the position exchange is completed, the photoelectric detection device (6) detects the frosting state of the first cooling disk (3) or the frosting state of the second cooling disk (4) in the processing space (2); If the shielding rate of the frost layer on the first cooling plate (3) or the frost layer on the second cooling plate (4) on the signal emitted by the photoelectric detection device (6) is greater than or equal to a preset shielding rate, adjusting the defrosting time of the microwave generating device (5) to a first preset time; If the shielding rate of the frost layer on the first cooling plate (3) or the frost layer on the second cooling plate (4) on the signal emitted by the photoelectric detection device (6) is less than a preset shielding rate, adjusting the defrosting time of the microwave generating device (5) to a second preset time; Among them, the first preset time length is greater than the second preset time length.

17. The control method according to claim 15, characterized in that: The method for determining whether to exchange the position of the first cooling disk (3) or the second cooling disk (4) in the storage space (1) with another cooling disk in the processing space (2) comprises: Obtaining the current storage weight in the storage space (1); Based on the current storage weight, the time for the first cooling disk (3) or the second cooling disk (4) in the storage space (1) to exchange positions with another cooling disk in the processing space (2) is determined, and timing is performed; If the timing reaches the time for position exchange, the first cooling plate (3) or the second cooling plate (4) in the storage space (1) is exchanged with the other cooling plate in the processing space (2).

18. The control method according to claim 17, characterized in that: The method for determining the time for the first cooling disk (3) or the second cooling disk (4) in the storage space (1) to exchange positions with another cooling disk in the processing space (2) based on the current storage weight comprises: If the current storage weight is less than the first preset weight, the time for the first cooling plate (3) or the second cooling plate (4) in the storage space (1) to exchange positions with another cooling plate in the processing space (2) is the first preset time; If the current storage weight is greater than or equal to the first preset weight and less than the second preset weight, the time for the first cooling plate (3) or the second cooling plate (4) in the storage space (1) to exchange positions with another cooling plate in the processing space (2) is the second preset time; If the current storage weight is greater than or equal to the second preset weight and less than the third preset weight, the time for the first cooling plate (3) or the second cooling plate (4) in the storage space (1) to exchange positions with another cooling plate in the processing space (2) is the third preset time; Among them, the second preset weight is less than the third preset weight, and the second preset weight is greater than the first preset weight; the second preset time is greater than the third preset time, and the second preset time is less than the first preset time.

19. The control method according to claim 15, characterized in that: The microwave generating device (5) is also used to process the food to be processed in the processing space (2); the control method further comprises: When the food to be processed is placed in the processing space (2), determining the weight of the food to be processed placed in the processing space (2); The microwave generating device (5) processes the food to be processed according to the processing instructions, and adaptively adjusts the processing time of the food according to the weight of the food to be processed.

20. The control method according to claim 19, characterized in that: The method for the microwave generating device (5) to adaptively adjust the time for processing food according to the weight of the food to be processed comprises: If the weight of the food to be processed placed in the processing space (2) is less than a fourth preset weight, the microwave generating device (5) processes the food for a third preset time; If the weight of the food to be processed placed in the processing space (2) is greater than or equal to a fourth preset weight and less than a fifth preset weight, the microwave generating device (5) processes the food for a time period equal to the fourth preset time period; If the weight of the food to be processed placed in the processing space (2) is greater than or equal to a fifth preset weight and less than a sixth preset weight, the microwave generating device (5) processes the food for the fifth preset time; Among them, the fifth preset weight is less than the sixth preset weight, and the fifth preset weight is greater than the fourth preset weight; the fourth preset time length is less than the fifth preset time length, and the fourth preset time length is greater than the third preset time length.

21. The control method according to claim 19, characterized in that: The control method further comprises: The microwave generating device (5) calculates the working power required by the microwave generating device (5) according to the defrosting instruction and the different processing instructions; the calculation formula is: ; in, is the microwave operating frequency, is the relative dielectric constant, is the dielectric loss angle, is the effective value of the microwave electric field intensity.

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