Refrigerator

Abstract

The invention discloses a refrigerator and relates to the technical field of refrigeration equipment, the refrigerator comprises a refrigerator body and an oscillatory wave module, and the refrigerator body is provided with a refrigeration chamber; the oscillatory wave module is arranged in the box body, and the oscillatory wave module is configured to be of a monopolar plate structure; wherein the first space is defined to be used for unfreezing and / or meat pretreatment, the third space is defined to be used for meat preservation, the fourth space is defined to be used for fruit and vegetable preservation, in the vertical direction, the distances between the first space, the third space and the fourth space and the oscillatory wave module are gradually increased, and the refrigeration chamber comprises at least two of the first space, the third space and the fourth space. The field intensity released by the oscillatory wave module in the form of the monopolar plate in the space is gradually weakened along with the increase of the distance between the oscillatory wave module and the polar plate, so that food material partitions can be reasonably distributed according to the field intensity distribution released by the oscillatory wave module in the whole space of the refrigerator, and the physiological metabolism of food materials can be more accurately regulated and controlled through oscillatory waves.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and particularly to refrigerators. Background Technology

[0002] As people's demand for "stockpiling" continues to increase, the requirements for long-term preservation in refrigerators are also becoming more stringent. Currently, the underlying mechanism for preserving fruits, vegetables, and meats mainly relies on the precise control of temperature and humidity. In recent years, the application and research of electromagnetic waves such as electric and magnetic fields in food preservation have also been gaining momentum. Among them, oscillating waves are electromagnetic waves generated by methods such as LC oscillating circuits. However, because the preservation mechanisms of oscillating waves differ for fruits, vegetables, and meats, there is currently no technology that applies oscillating waves throughout the entire refrigerator space. Therefore, the effect of regulating the physiological metabolism of food through oscillating waves still needs improvement. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a refrigerator that can rationally allocate food zones based on the field strength distribution released by the oscillation wave module throughout the refrigerator's refrigeration space, and more accurately regulate the physiological metabolism of food through oscillation waves to achieve food preservation.

[0004] According to an embodiment of the present invention, a refrigerator includes a cabinet and an oscillating wave module. The cabinet has a refrigeration compartment. The oscillating wave module is disposed in the cabinet and configured as a single-plate structure. A first space is defined for defrosting and / or meat pretreatment, a third space is defined for meat preservation, and a fourth space is defined for fruit and vegetable preservation. In the vertical direction, the distances between the first space, the third space, and the fourth space and the oscillating wave module increase progressively. The refrigeration compartment includes at least two of the first space, the third space, and the fourth space.

[0005] The refrigerator according to the present invention has at least the following beneficial effects: the field strength released by the oscillating wave module in the form of a single plate gradually weakens as the distance between it and the plate increases. Therefore, the food partitions can be reasonably allocated according to the field strength distribution released by the oscillating wave module in the entire space of the refrigerator, and the physiological metabolism of the food can be more accurately regulated by the oscillating wave to achieve food preservation.

[0006] According to some embodiments of the present invention, when the first space is used for thawing, the effective electric field strength of the first space is greater than 40 kV / m; when the first space is used for meat pretreatment, the effective electric field strength of the first space is between 10 kV / m and 100 kV / m.

[0007] According to some embodiments of the present invention, the effective field strength of the third space is between 5 kV / m and 10 kV / m.

[0008] According to some embodiments of the present invention, the effective field strength of the fourth space is between 1 kV / m and 5 kV / m.

[0009] According to some embodiments of the present invention, the refrigeration room includes a cold storage room. If the refrigeration room includes a first space, a third space, and a fourth space, the cold storage room is divided into the first space, the third space, and the fourth space from bottom to top, and the oscillation wave module is disposed at the bottom of the first space.

[0010] According to some embodiments of the present invention, the refrigeration chamber includes two first spaces arranged side by side in a horizontal direction, the two first spaces being used for defrosting and meat pretreatment respectively; and / or, the refrigeration chamber includes two fourth spaces arranged in a vertical direction, the upper fourth space being used for placing leafy vegetables and berries.

[0011] According to some embodiments of the present invention, the refrigeration room includes a cold storage room and a variable temperature room. If the refrigeration room includes a first space, a third space and a fourth space, the cold storage room is located above the variable temperature room, the top of the variable temperature room is set as the first space, the cold storage room is divided into the third space and the fourth space from bottom to top, and the oscillation wave module is located at the bottom of the first space.

[0012] According to some embodiments of the present invention, the refrigeration compartment includes three fourth spaces arranged vertically, the uppermost fourth space being used to place leafy vegetables and berries, and the lowermost fourth space being used to place pre-cleaned vegetables.

[0013] According to some embodiments of the present invention, the refrigeration compartment includes a refrigerator compartment and a freezer compartment. If the refrigeration compartment includes a first space, a third space and a fourth space, the freezer compartment is provided with the first space, which is located at the top of the freezer compartment. The refrigerator compartment is provided with the third space and the fourth space arranged sequentially from bottom to top. The oscillation wave module is located at the top of the drawer below the first space.

[0014] A refrigerator according to an embodiment of the present invention includes: a cabinet and an oscillating wave module, wherein the cabinet has a refrigeration compartment; the oscillating wave module is disposed in the cabinet; wherein a first subspace is defined for defrosting, with an effective field strength between 40 kV / m and 100 kV / m; a second subspace is defined for meat pretreatment, with an effective field strength between 10 kV / m and 100 kV / m; a second subspace is defined for meat freezing, with an effective field strength between 1 kV / m and 50 kV / m; a third subspace is defined for meat preservation, with an effective field strength between 5 kV / m and 10 kV / m; and a fourth subspace is defined for fruit and vegetable preservation, with an effective field strength between 1 kV / m and 5 kV / m; the refrigeration compartment includes the second subspace, and the refrigeration compartment further includes at least one of the first subspace, the second subspace, the third subspace, and the fourth subspace.

[0015] The refrigerator according to the present invention has at least the following beneficial effects: by configuring the position of the oscillation wave module according to the magnitude of the oscillation wave field in each space of the refrigerator, the food partitions are reasonably allocated, and the physiological metabolism of the food is more accurately regulated by the oscillation wave to achieve food preservation.

[0016] According to some embodiments of the present invention, the oscillating wave module is configured as a monopole structure, satisfying that: in the vertical direction, the distances between the first subspace, the second space, the third space, and the fourth space and the oscillating wave module increase progressively.

[0017] According to some embodiments of the present invention, the refrigeration compartment includes a refrigerator compartment and a freezer compartment. If the refrigeration compartment includes a second space, a third space and a fourth space, the freezer compartment is provided with the second space, which is located at the top of the freezer compartment. The refrigerator compartment is provided with the third space and the fourth space arranged sequentially from bottom to top. The oscillation wave module is located at the bottom of the second space.

[0018] According to an embodiment of the present invention, a refrigerator includes a cabinet and an oscillating wave module. The cabinet has a refrigeration compartment. The oscillating wave module is disposed in the cabinet and configured as a single-plate structure. A first subspace is defined for defrosting, a second subspace is defined for meat pretreatment, a third subspace is defined for meat freezing, a third subspace is defined for meat preservation, and a fourth subspace is defined for fruit and vegetable preservation. In the vertical direction, the distances between the first subspace, the second subspace, the third subspace, and the fourth subspace and the oscillating wave module increase progressively. The refrigeration compartment includes the second subspace and further includes at least one of the first subspace, the second subspace, the third subspace, and the fourth subspace.

[0019] The refrigerator according to the present invention has at least the following beneficial effects: the field strength released by the oscillating wave module in the form of a single plate gradually weakens as the distance between it and the plate increases. Therefore, the food partitions can be reasonably allocated according to the field strength distribution released by the oscillating wave module in the entire space of the refrigerator, and the physiological metabolism of the food can be more accurately regulated by the oscillating wave to achieve food preservation.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of a refrigerator according to one embodiment of the present invention; Figure 2 This is a schematic diagram of a refrigerator according to another embodiment of the present invention; Figure 3 This is a schematic diagram of a refrigerator according to another embodiment of the present invention; Figure 4 This is a schematic diagram of a refrigerator according to another embodiment of the present invention; Figure 5 A graph showing the relationship between fruit and vegetable preservation and field strength; Figure 6 A graph showing the relationship between micro-freezing preservation of meat and field strength; Figure 7 A graph showing the relationship between freezing preservation and field strength; Figure 8 The graph shows the relationship between thawing and electric field strength.

[0022] Figure label: 101. Refrigerator compartment; 102. Variable temperature compartment; 103. Freezer compartment; 201. First space; 201a. First subspace; 201b. Second subspace; 202. Second space; 203. Third space; 204. Fourth space; 301. Oscillating Wave Module. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0024] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0027] Oscillating waves are a concept in physics, referring to the periodic, repetitive changes of a physical quantity around its equilibrium position or between a fixed value; in this embodiment, they specifically refer to electromagnetic waves. The LC oscillator utilizes an inductor (L) and a capacitor (C) to construct an oscillating circuit, generating periodic oscillating waveforms without an external input signal. The oscillation frequency can be changed by adjusting the values ​​of the inductor and capacitor.

[0028] Studies have shown that electric fields can regulate water molecules in food, causing resonance, thereby inhibiting cell respiration in fruits and vegetables, generating stress that leads to the accumulation of soluble sugars, inhibiting enzyme activity, delaying protein oxidation, and destroying bacterial structure, thus delaying nutrient loss, maintaining taste, and extending shelf life.

[0029] For fruits and vegetables, oscillation waves can create spatial adversity, exerting stress on the organisms and causing them to rapidly accumulate large amounts of soluble solids, inhibit respiration, delay ripening, and increase sweetness. For meat, oscillation waves inhibit microbial growth, deactivate enzymes, reduce fat oxidation, and preserve nutrients by sterilizing and deactivating enzymes.

[0030] However, since the preservation mechanisms of oscillating waves differ for fruits, vegetables, and meats, the required field strength ranges for these two types of food also differ. In a monopolar plate-type oscillating wave module, the field strength released within the space gradually weakens as the distance between the module and the plate increases. Therefore, by rationally allocating food zones based on the field strength distribution released by the oscillating wave module throughout the refrigerator's cooling space, food can be more precisely preserved by regulating its physiological metabolism through oscillating waves.

[0031] The following is a detailed analysis of the differences in the preservation mechanisms of oscillating waves for fruits, vegetables, and meats.

[0032] For fruit and vegetable preservation, which is still a living organism after harvest, oscillating waves primarily delay ripening and extend shelf life by inhibiting enzyme activity and the normal operation of the electron transport chain during physiological metabolism. However, because the physiological activities of fruits and vegetables still exist, the intensity of the oscillating waves must not damage their normal cell morphology, and the pressure difference between the inside and outside of the cell membranes must not be too large to avoid adverse effects.

[0033] For meat preservation, since the meat itself has already lost its vitality, the mechanism of oscillation waves on meat is mainly through sterilization and enzyme inactivation. Sterilization requires a relatively strong electric field because it needs to penetrate the bacterial cell membrane, destroying the bacterial cells through electroporation, causing their contents to leak out and the bacteria to die. This prevents the meat from spoiling.

[0034] For meat pretreatment, such as marinating and tenderizing, oscillating waves are required to provide a certain amount of energy and intensity to damage cell structure and break fiber structure to a certain extent, thereby promoting mass transfer. Therefore, a relatively large field strength is also required.

[0035] For meat freezing, oscillating waves affect the movement of water molecules, preventing the formation of large, sharp ice crystals that pierce cells during the freezing process, thus preserving the texture of the frozen food.

[0036] For thawing meat, the oscillating waves affect the movement of water molecules through the energy they release, promoting the rapid passage of ice crystals through the ice crystal zone, thus achieving simultaneous thawing of the food inside and out. Therefore, a certain amount of energy is required, that is, a relatively large field strength is needed.

[0037] The common electric field configuration is a bipolar plate, where a uniform field strength is formed between two parallel plates. However, the application of this plate-to-plate design in refrigerators still presents certain challenges, such as issues like bottom plate detachment, preventing accidental user contact, and waterproofing / electric shock protection. In this embodiment, the oscillation wave module is configured as a monopolar plate structure. This refers to an LC oscillation circuit formed by using a monopolar plate capacitor and an inductor in an LC oscillator. Under certain conditions, the circuit can generate oscillations. Near the monopolar plate of the capacitor, electric field lines radiate outward from the plate, forming a non-uniform electric field distribution. The magnetic field lines around the inductor are loop-shaped, closing around the inductor. The electric field lines are mainly distributed between the monopolar plate of the capacitor and the other plate (which may be another capacitor plate or ground). The magnetic field lines mainly form a closed loop around the inductor. Using the monopolar plate, oscillation waves are emitted to both sides of the plane where the plate is located, and by increasing the input voltage, an effective field strength is formed in the drawer space.

[0038] The field strength released by the monopole-type oscillating wave module in space gradually weakens as the distance between it and the plate increases. Therefore, based on its field strength distribution characteristics and the different field strengths required for various scenarios analyzed above, the field strength distribution released by the oscillating wave module in the refrigerator can be obtained by arranging the oscillating wave module in the refrigerator. Combined with the positional relationship of the corresponding scenario, food partitions can be reasonably allocated, and the physiological metabolism of food can be more accurately regulated by oscillating waves to achieve food preservation.

[0039] It is understood that the refrigerator in this embodiment of the invention includes a cabinet and an oscillating wave module. The cabinet has a cooling compartment, and the oscillating wave module is located in the cabinet and configured as a single-plate structure. The cooling compartment can be divided into two, three, or four types of spaces: a first space, a second space, a third space, and a fourth space. Specifically, the first space is used for defrosting, or for meat pre-treatment, or the first space is used for both defrosting and meat pre-treatment, the second space for meat freezing, the third space for meat preservation, and the fourth space for fruit and vegetable preservation.

[0040] Understandably, the first, second, third, and fourth spaces can be formed by each shelf / drawer. For example, the first space can refer to the space where the drawer is located, and the fourth space can be the space formed between the shelves on both sides.

[0041] Because the oscillating wave module is configured with a single-plate structure, the field strength released in the space gradually weakens as the distance between it and the plate increases. That is, the closer the space is to the oscillating wave module, the stronger the field strength inside it will be. The suitable oscillating wave parameters for the first, second, third, and fourth spaces are also different in strength. By rationally planning the positions of the first, second, third, and fourth spaces, the field strength released by the oscillating wave module in the refrigerator is matched with the field strength required by each space. Thus, based on the field strength distribution released by the oscillating wave module in the entire refrigerator space, the food partitions are rationally allocated, and the physiological metabolism of the food is more precisely regulated by the oscillating waves to achieve food preservation.

[0042] Therefore, it is necessary to first obtain the field strength of the oscillation wave suitable for various ingredients under various scenarios, so as to adjust the relative position of the oscillation wave module and various spaces according to the field strength of the oscillation wave suitable for various ingredients. Table 1 below shows the test values ​​of various ingredients in different field strength scenarios.

[0043] Table 1. The impact of field strength on food preservation.

[0044] From Table 1 and Figure 5It can be seen that Shanghai bok choy and strawberries were selected as samples of fruits and vegetables, and their 7-day weight loss rate (the degree of weight reduction before and after 7 days under a set field strength) was tested under different field strengths. It can be seen that Shanghai bok choy and strawberries have relatively low 7-day weight loss rates under field strengths between 1kV / m and 5kV / m.

[0045] From Table 1 and Figure 6 It can be seen that, when pork tenderloin was selected as the sample, its 7-day TVB-N content was tested under different electric field strengths. The results show that the 7-day TVB-N content of pork tenderloin is relatively low under electric field strengths between 5kV / m and 10kV / m. Total Volatile Basic Nitrogen (TVB-N) is a general term for alkaline nitrogenous substances such as ammonia and amines produced during the spoilage of animal foods due to the decomposition of proteins by enzymes and bacteria. These substances are volatile; a higher TVB-N content indicates more amino acids have been destroyed, especially methionine and tyrosine, significantly impacting nutritional value.

[0046] From Table 1 and Figure 7 It can be seen that, by selecting tuna as the sample for freezing effect and testing its 14-day soluble protein retention rate (the ability of protein to maintain its soluble state) under different field strengths, it can be found that tuna has a relatively high 14-day soluble protein retention rate under field strengths between 10kV / m and 50kV / m.

[0047] From Table 1 and Figure 8 It can be seen that, by selecting beef tenderloin as a sample for thawing effect and testing its juice loss rate under different electric field strengths, it can be found that the juice loss rate of beef tenderloin is relatively low under electric field strengths between 40kV / m and 100kV / m.

[0048] There are many types of meat pretreatment, such as marinating, which also depends on the seasonings used by the user. There is a lot of data, which is not shown in Table 1. Based on the summary of test values, it is found that an electric field strength between 10kV / m and 100kV / m is more suitable.

[0049] It should be noted that multiple ingredients were selected for testing in each of the above scenarios. Since the data is similar, only one of them was selected for explanation.

[0050] Based on the above mechanism and test data, the appropriate oscillation wave parameters for different scenarios are summarized, and the results are as follows: Table 2. Correspondence between oscillating wave field intensities in different scenarios

[0051] Specifically, according to some embodiments of the present invention, when the first space is used for thawing, it is defined as the first subspace. The effective field strength of the first subspace is 40kV / m to 100kV / m. The oscillating waves between 40kV / m and 100kV / m affect the movement of water molecules through the energy released, promoting the rapid passage of ice crystals through the ice crystal zone, achieving simultaneous thawing of the food inside and out. If the effective field strength is less than 40kV / m, the energy released by the oscillating waves has a weaker ability to affect the movement of water molecules, making it difficult for ice crystals to pass through the ice crystal zone, and the food inside is difficult to thaw, resulting in a slower thawing rate. If the effective field strength is greater than 100kV / m, the thawing effect is not significantly enhanced. When the first space is used for meat pretreatment, it is defined as the second subspace. The effective field strength of the second subspace is between 10kV / m and 100kV / m. The oscillating waves between 10kV / m and 100kV / m provide a certain amount of energy and intensity, which to some extent damages cell structure, breaks fiber structure, etc., promotes mass transfer, and helps to promote the marinating and tenderizing process. If the effective field strength is less than 10 kV / m, it is difficult to destroy the cell structure, and it does not help much with meat pretreatment. If the effective field strength is greater than 100 kV / m, the field strength is too high, causing cell rupture and leakage of contents, which leads to the continuous oxidation of ferrous iron to ferric iron, resulting in browning. The first space requires the largest effective field strength. By placing the first space close to the oscillating wave module, or by increasing the effective field strength of the oscillating wave module, the first space can obtain a sufficient field strength.

[0052] According to some embodiments of the present invention, the effective field strength of the second space ranges from 1 kV / m to 50 kV / m. Oscillating waves of 1 kV / m to 50 kV / m influence the movement of water molecules, preventing the formation of large, sharp ice crystals that pierce cells during freezing and preserving the texture of the frozen food. If the effective field strength is less than 1 kV / m, large, sharp ice crystals will still form and pierce cells during freezing. If the effective field strength is greater than 50 kV / m, further increasing the field strength has little effect, meaning that continuing to increase the field strength is meaningless.

[0053] According to some embodiments of the present invention, the effective field strength of the third space is between 5 kV / m and 10 kV / m. Oscillating waves of 5 kV / m to 10 kV / m can destroy bacterial cells, causing bacterial death and thus preventing meat spoilage. If the effective field strength is less than 5 kV / m, it is difficult to destroy bacterial cells, and the effect of preventing meat spoilage is not significant. If the effective field strength is greater than 10 kV / m, the field strength is too high, causing meat cells to rupture, contents to leak out, and meat quality to decline.

[0054] According to some embodiments of the present invention, the effective field strength of the fourth space is between 1 kV / m and 5 kV / m. Oscillating waves of 1 kV / m to 5 kV / m inhibit the activity of enzymes and the normal operation of the electron transport chain during physiological metabolism, thereby delaying the ripening of fruits and vegetables and extending their shelf life. If the effective field strength is less than 1 kV / m, it cannot significantly inhibit the activity of enzymes and the normal operation of the electron transport chain during physiological metabolism. Since the physiological activities of fruits and vegetables still exist, if the effective field strength is greater than 5 kV / m, it will damage their normal cell morphology and accelerate water loss and wilting. The fourth space requires the minimum effective field strength, which is achieved by keeping the fourth space away from the oscillating wave module or reducing the effective field strength of the oscillating wave module, so that the effective field strength of the fourth space is maintained within a suitable range.

[0055] Based on the suitable field strength ranges for each space, the field strength generated by the oscillating wave module and the distance between each space and the oscillating wave module are adjusted to ensure that each space achieves the required field strength. Specifically, the field strengths of the spaces can be arranged in ascending order, meaning the spaces are arranged such that their vertical distance from the oscillating wave module conforms to the ranges in Table 2. Alternatively, spaces with overlapping field strength ranges can be arranged horizontally, or positioned on either side of the oscillating wave module in the vertical direction.

[0056] In one embodiment, the field strength ranges of each space are distributed in ascending order of magnitude, are all different, and have no overlapping portions. For example, when the cooling room includes a first space and a second space, the first space is close to the oscillating wave module, and the second space is located on the side of the first space away from the oscillating wave module. When the cooling room includes a first space, a second space, and a third space, the first space is close to the oscillating wave module, the second space is located on the side of the first space away from the oscillating wave module, and the third space is located on the side of the second space away from the oscillating wave module. When the cooling room includes a first space, a second space, a third space, and a fourth space, the first space is close to the oscillating wave module, the second space is located on the side of the first space away from the oscillating wave module, the third space is located on the side of the second space away from the oscillating wave module, and the fourth space is located on the side of the third space away from the oscillating wave module. When the cooling room includes a first subspace, a second space, a second subspace, a third space, and a fourth space, the distances of the first subspace, the second space, the second subspace, the third space, and the fourth space from the oscillating wave module increase progressively.

[0057] In one embodiment, when the cooling room includes a first subspace, a second space, a third space, and a fourth space, the first and second subspaces are arranged horizontally, the second and first subspaces are arranged vertically, the oscillation wave module is disposed between the second and first subspaces, and the third and fourth spaces are disposed above the second subspace from bottom to top, so as to simultaneously meet the field strength requirements of multiple spaces, and the field strength ranges of the first, second, and second subspaces may have overlapping equal parts.

[0058] Because oscillating waves can penetrate and be released in a metal-free space, and the magnitude of the field strength is mainly related to the vertical distance between the oscillating wave modules, it is possible to install them throughout the entire refrigerator space. Assuming that the height of the first, second, third, and fourth spaces is 20cm, the theoretical field strength can be calculated using the formula E=U / d, resulting in the following embodiment.

[0059] Reference Figure 1 As shown, it can be understood that in one embodiment, the refrigerator type is a cross-door refrigerator. The oscillation module 301 is mounted at the bottom of the lowest drawer of the refrigerator compartment 101, and outputs a voltage of 2000V. If the height of the food placed in the drawer equipped with the oscillation module 301 is 2 cm to 5 cm, the electric field strength acting on the food is 40 kV / m to 100 kV / m. The drawer equipped with the oscillation module 301 can be used as a defrosting space or a meat pre-processing space, that is, the drawer equipped with the oscillation module 301 is the first space 201.

[0060] Theoretical calculations show that the electric field strength in the space above the first space 201 is approximately 5 kV / m to 10 kV / m, which is consistent with the micro-freezing scenario for meat. Therefore, the space above the first space 201 is configured as the third space 203. In the micro-freezing scenario for meat, the meat is not completely frozen, and the growth rate of bacteria is effectively slowed down, thereby extending the shelf life of the meat. Micro-freezing technology is a preservation method that controls the storage temperature within a temperature range of 1°C to 2°C below the freezing point of organisms, i.e., -5°C to 0°C, to achieve food preservation. In meat preservation, micro-freezing technology can reduce the mechanical damage caused by ice crystals to the product during freezing, reduce cell decomposition and gas expansion, and eliminate the need for deep thawing before consumption, thereby reducing juice loss during thawing and maintaining the original freshness of the food. The basic principle of micro-freezing preservation is to use low temperature to inhibit the reproduction of microorganisms and enzyme activity. In the micro-freezing state, some of the water in the meat freezes, resulting in a decrease in water activity, thereby inhibiting the growth and reproduction of microorganisms. At the same time, the low temperature also reduces enzyme activity and slows down the rate of biochemical reactions, keeping the meat fresh for a longer period of time. The third space 203 is defined by drawers, which helps to achieve individual temperature control.

[0061] Theoretical calculations show that the electric field strength of the space above the third space 203 is approximately below 5kV / m, which is suitable for the fruit and vegetable preservation scenario. Therefore, the space above the third space 203 is configured as the fourth space 204.

[0062] Reference Figure 1 As shown, it can be understood that two first spaces 201 are provided below the third space 203. Each of the two first spaces 201 is constructed as an independent drawer, arranged horizontally as a first subspace 201a and a second subspace 201b. The first subspace 201a serves as a defrosting space, and the second subspace 201b serves as a meat pre-processing space. Because the field strength attenuation of the oscillation wave module 301 of this invention is mainly located in the vertical direction, with weaker attenuation in the horizontal direction, the oscillation wave module 301 is positioned below the first subspace 201a. The field strength attenuation in the second subspace 201b is minimal and remains at the same order of magnitude, allowing the two first spaces 201 to perform different functions.

[0063] Reference Figure 1 As shown, it can be understood that two fourth spaces 204 are provided above the third space 203. These two fourth spaces 204 are defined by two shelves arranged vertically. In the classification of fruits and vegetables, berries and leafy vegetables are quite special. Berries are soft, juicy, fleshy fruits that develop from the ovary or together with other floral parts. Their characteristics include a thin exocarp, fleshy and juicy mesocarp and endocarp, containing one or more seeds. There are many types of berry-bearing fruit trees, including but not limited to grapes, kiwifruit, raspberries, currants, blueberries, mulberries, figs, pomegranates, star fruit, sapodilla, papaya, guava, rose apple, blueberries, and passion fruit. Leafy vegetables are a type of vegetable whose leaves and petioles are the edible parts, including spinach, round-leaf spinach, water spinach, coriander, lettuce, and amaranth. Berries and leafy greens are more delicate and can be stored separately from other types of fruits and vegetables. This allows for more rational zoning of ingredients and more precise regulation of their physiological metabolism through oscillation waves, thus preserving their freshness.

[0064] Specifically, theoretical calculations show that the electric field strength of a fourth space 204 adjacent to the third space 203 is 3.3 kV / m to 5 kV / m, while the electric field strength of another fourth space 204 far from the third space 203 is 2.5 kV / m to 3.3 kV / m. It is more suitable to store berries and leafy vegetables in the uppermost fourth space 204, i.e., in the area with the weakest electric field, while storing other fruits and vegetables in areas with slightly stronger electric fields.

[0065] In this embodiment, the oscillating wave module 301 is disposed in the refrigerator compartment 101, and the first space 201, the third space 203 and the fourth space 204 are all located in the refrigerator compartment 101.

[0066] Understandably, the labels for the first compartment 201, the third compartment 203, and the fourth compartment 204 can be affixed to their corresponding locations. For example, the drawers corresponding to the two first compartments 201 could be labeled as the meat pre-processing compartment and the defrosting compartment, respectively; the drawer corresponding to the third compartment 203 could be labeled as the meat micro-freezing compartment; and the shelves of the two fourth compartments 204 could be labeled as the fruit compartment and the leafy vegetable / berry compartment, respectively. The locations of the refrigerator compartments 201, 203, and 204 can also be indicated in other ways. For example, the refrigerator's instruction manual could label the recommended food items for each area. Alternatively, a mini-program or app could be used to guide users through the refrigerator's usage areas, making it convenient for them to refer to the instructions.

[0067] Reference Figure 2 As shown, it can be understood that in another embodiment, the refrigerator type is a cross-door refrigerator. The upper part of the refrigerator is the refrigerator compartment 101, one side of the lower part is the freezer compartment 103, and the other side of the lower part is the variable temperature compartment 102. The oscillation wave module 301 is installed at the bottom of the top drawer of the variable temperature compartment 102, and the output voltage is 2000V. The electric field strength inside the drawer where the oscillation wave module 301 is installed is 10 kV / m to 100 kV / m, which can meet the needs of defrosting and meat pretreatment scenarios. That is, the drawer equipped with the oscillation wave module 301 is the first space 201.

[0068] Theoretical calculations show that the electric field strength at the bottom of the cold storage 101, adjacent to the first space 201, is approximately 5kV / m to 10kV / m, which is consistent with the scenario of meat micro-freezing. Therefore, the space above the first space 201 is configured as the third space 203.

[0069] Theoretical calculations show that the electric field strength of the space above the third space 203 is approximately below 5kV / m, which is suitable for the fruit and vegetable preservation scenario. Therefore, the space above the third space 203 is configured as the fourth space 204.

[0070] Reference Figure 2 As shown, it can be understood that two third spaces 203 are provided above the first space 201. The two third spaces 203 are each constructed as two independent drawers, and the two drawers are arranged horizontally. Since the field strength attenuation of the oscillation wave module 301 of the present invention is mainly located in the vertical direction, and the attenuation in the horizontal direction is relatively weak, the two third spaces 203 are of the same order of magnitude and can be used as two independent micro-freezing spaces, thereby facilitating classified storage.

[0071] Reference Figure 2As shown, it can be understood that three fourth spaces 204 are set above the third space 203. Each of the three fourth spaces 204 is defined by a drawer and two shelves, arranged vertically. Since fruits and vegetables are stored in large quantities in the refrigerator, the three fourth spaces 204 allow for more refined classification. Among the fruit and vegetable categories, pre-cut vegetables, berries, and leafy greens are more delicate and can be stored separately from other categories. This allows for more rational food zoning and more precise regulation of the physiological metabolism of the food through oscillation waves, thus achieving food preservation. Pre-cut vegetables, also known as fresh-cut vegetables, freshly sterilized vegetables, semi-processed vegetables, or lightly processed vegetables, refer to fresh vegetables that have undergone a series of processes including grading, sorting, selection, washing, cutting, preservation, and packaging, and are then vacuum-packed in a sterile environment to maintain their freshness. Consumers can cook and eat these vegetables directly without further processing or washing after purchase.

[0072] Specifically, theoretical calculations show that the electric field strengths of the three fourth spaces 204, from bottom to top, are 3.3 kV / m to 5 kV / m, 2.5 kV / m to 3.3 kV / m, and 2 kV / m to 2.5 kV / m, respectively. Berries and leafy vegetables are stored in the top fourth space 204, which is the area with the weakest electric field strength. Cleaned vegetables are stored in the area with the strongest electric field strength among the three fourth spaces 204. The oscillating waves have a certain effect of inhibiting enzymes and sterilizing without excessively damaging the cells of fresh-cut vegetables, thus preventing browning. Other fruits and vegetables are stored in the middle position. Furthermore, storing cleaned vegetables in the drawer can have a certain moisturizing effect, preventing them from wilting due to excessive water loss.

[0073] In this embodiment, the oscillating wave module 301 is disposed in the variable temperature chamber 102, the first space 201 is also located in the variable temperature chamber 102, and the third space 203 and the fourth space 204 are both located in the cold storage chamber 101.

[0074] Reference Figure 3 As shown, it can be understood that in another embodiment, the refrigerator type is a French-style refrigerator. The upper part of the refrigerator is the refrigerator compartment 101, and the lower part is the freezer compartment 103. The oscillating wave module 301 is mounted at the bottom of the top drawer of the freezer compartment 103, with an output voltage of 2000V. The electric field strength inside the drawer where the oscillating wave module 301 is mounted is 10 kV / m to 40 kV / m (upper and lower layers), and its location is in the freezer compartment 103, thus meeting the needs of meat freezing scenarios. That is, the drawer equipped with the oscillating wave module 301 is the second space 202.

[0075] Theoretical calculations show that the electric field strength at the bottom of the refrigerator compartment 101, adjacent to the second space 202, is approximately 5kV / m to 10kV / m, which can be used as a space for micro-freezing meat. That is, the drawer at the bottom of the refrigerator compartment 101 serves as the third space 203.

[0076] Theoretical calculations show that the electric field strength above the third space 203 at the bottom of the refrigerator compartment 101 is approximately 3.3 kV / m to 5 kV / m, which can be used as a fruit and vegetable preservation space. Therefore, the space above the third space 203 at the bottom of the refrigerator compartment 101 serves as the fourth space 204. The other spaces in the refrigerator compartment 101, due to their relatively low oscillating wave field strength, can be used as ordinary spaces.

[0077] Reference Figure 3 As shown, it can be understood that the field strength inside the drawer at the bottom of the freezer 103, which is adjacent to the second space 202 in the middle of the freezer 103, is 10 kV / m to 40 kV / m, and its location is in the freezer 103. Therefore, it can meet the requirements of the meat freezing scenario, that is, both the upper and lower drawers of the oscillation wave module 301 can be set as the second space 202.

[0078] In this embodiment, the oscillation wave module 301 is located in the freezer compartment 103, the second space 202 is also located in the variable temperature compartment 102, and the third space 203 and the fourth space 204 are both located in the refrigerator compartment 101.

[0079] Reference Figure 4 As shown, it can be understood that in another embodiment, the refrigerator type is a French-style refrigerator. The upper part of the refrigerator is the refrigerator compartment 101, and the lower part is the freezer compartment 103. The oscillating wave module 301 is mounted on the top of the bottom drawer of the freezer compartment 103, with an output voltage of 2000V. The electric field strength inside the drawer where the oscillating wave module 301 is mounted is 10 kV / m to 20 kV / m, and its location is in the freezer compartment 103, thus meeting the needs of meat freezing scenarios. That is, the drawer equipped with the oscillating wave module 301 is the second space 202.

[0080] Theoretical calculations show that the electric field strength of the space above the top of the freezer 103, adjacent to the second space 202, is approximately 10 kV / m to 20 kV / m, which can be used as a meat pretreatment space. That is, the drawer at the top of the freezer 103 serves as the first space 201. At this time, the first space 201 also serves as a variable temperature space to adjust to a temperature suitable for meat pretreatment.

[0081] Theoretical calculations show that the electric field strength at the bottom of the refrigerator compartment 101, adjacent to the first space 201, is approximately 5kV / m to 10kV / m, which can be used as a space for micro-freezing meat. That is, the drawer at the bottom of the refrigerator compartment 101 serves as the third space 203.

[0082] Theoretical calculations show that the electric field strength above the third space 203 at the bottom of the refrigerator compartment 101 is approximately 1.3 kV / m to 2.5 kV / m, which can be used as a fruit and vegetable preservation space. Therefore, the space above the third space 203 at the bottom of the refrigerator compartment 101 serves as the fourth space 204. The other spaces in the refrigerator compartment 101, due to their relatively low oscillating wave field strength, can be used as ordinary spaces.

[0083] It should be noted that in the first space 201, the second space 202, the third space 203, and the fourth space 204, the effect on the food is caused by the combined influence of temperature and oscillation waves. For example, when the first space 201 is used for thawing, the effective field strength of the first space 201 is greater than 40 kV / m, while the second space 202 is used for freezing meat, and the effective field strength of the second space 202 ranges from 1 kV / m to 50 kV / m. Freezing and thawing are mainly affected by temperature, with oscillation waves playing a secondary role. Therefore, although these two field strengths overlap, their main temperature ranges are different, so thawing will not occur during freezing due to the field strength of the oscillation waves. For another example, the maximum value of the oscillation wave for meat preservation is 10 kV / m, and the maximum value of the oscillation wave for meat pretreatment is 100 kV / m. Browning was observed in experiments when both scenarios exceeded their maximum values, but the temperature ranges are different: meat preservation is from -1℃ to -4℃, while pretreatment is around 4℃. This results in different field strengths when browning occurs. This embodiment mainly describes the parameter range of field strength, but the temperature settings for thawing, meat pretreatment, freezing and preservation are well known to those skilled in the art. When the above embodiment mentions the use of the relevant space, it also implies the relevant temperature requirements, which will not be repeated here.

[0084] The parameters of the above-mentioned oscillating wave module 301, the positional relationship of the first space 201, the second space 202, the third space 203, and the fourth space 204, as well as the type of refrigerator, are only used to help illustrate the inventive concept of the present invention and to illustrate the specific solutions that can be adopted. They do not limit the specific protection scope of the present invention. For example, the voltage of the oscillating wave module 301 can also be 800V, 1500V, and 2200V, etc., and the type of refrigerator can also be a multi-door, side-by-side, or T-door refrigerator, etc.

[0085] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A refrigerator, characterized in that, include: The enclosure includes a refrigeration compartment; An oscillating wave module is disposed in the housing, and the oscillating wave module is configured as a single-plate structure. Specifically, a first space is defined for thawing and / or meat pretreatment, a third space is defined for meat preservation, and a fourth space is defined for fruit and vegetable preservation. In the vertical direction, the distances between the first space, the third space, and the fourth space and the oscillating wave module increase progressively. The refrigeration chamber includes at least two of the first space, the third space, and the fourth space.

2. The refrigerator according to claim 1, characterized in that, When the first space is used for thawing, the effective field strength of the first space is between 40kV / m and 100kV / m; when the first space is used for meat pretreatment, the effective field strength of the first space is between 10kV / m and 100kV / m.

3. The refrigerator according to claim 1, characterized in that, The effective field strength range of the third space is between 5kV / m and 10kV / m.

4. The refrigerator according to claim 1, characterized in that, The effective field strength range of the fourth space is between 1 kV / m and 5 kV / m.

5. The refrigerator according to claim 1, characterized in that, The refrigeration room includes a cold storage room. If the refrigeration room includes the first space, the third space, and the fourth space, the cold storage room is divided into the first space, the third space, and the fourth space from bottom to top, and the oscillation wave module is located at the bottom of the first space.

6. The refrigerator according to claim 5, characterized in that, The refrigeration chamber includes two first spaces arranged side by side in a horizontal direction, and the two first spaces are respectively used for defrosting and meat pretreatment; and / or, the refrigeration chamber includes two fourth spaces arranged in a vertical direction, and the uppermost fourth space is used to place leafy vegetables and berries.

7. The refrigerator according to claim 1, characterized in that, The refrigeration room includes a cold storage room and a variable temperature room. If the refrigeration room includes a first space, a third space, and a fourth space, the cold storage room is located above the variable temperature room, the top of the variable temperature room is designated as the first space, the cold storage room is divided into the third space and the fourth space from bottom to top, and the oscillation wave module is located at the bottom of the first space.

8. The refrigerator according to claim 7, characterized in that, The refrigeration chamber includes three fourth spaces arranged vertically. The uppermost fourth space is used to place leafy vegetables and berries, and the lowermost fourth space is used to place pre-cleaned vegetables.

9. The refrigerator according to claim 1, characterized in that, The refrigeration compartment includes a refrigerator compartment and a freezer compartment. If the refrigeration compartment includes a first space, a third space and a fourth space, the first space is provided inside the freezer compartment and is located at the top of the freezer compartment. The refrigerator compartment has the third space and the fourth space arranged sequentially from bottom to top. The oscillation wave module is located at the top of the drawer below the first space.

10. A refrigerator, characterized in that, include: The enclosure includes a refrigeration compartment; An oscillating wave module is installed in the enclosure; Specifically, a first subspace is defined for defrosting, with an effective electric field strength between 40 kV / m and 100 kV / m; a second subspace is defined for meat pretreatment, with an effective electric field strength between 10 kV / m and 100 kV / m; a third subspace is defined for meat freezing, with an effective electric field strength between 1 kV / m and 50 kV / m; a fourth subspace is defined for meat preservation, with an effective electric field strength between 5 kV / m and 10 kV / m; and a fourth subspace is defined for fruit and vegetable preservation, with an effective electric field strength between 1 kV / m and 5 kV / m. The refrigeration chamber includes the second subspace and also includes at least one of the first, second, third, and fourth subspaces.

11. The refrigerator according to claim 10, characterized in that, The oscillating wave module is configured as a single-plate structure, satisfying the following condition: in the vertical direction, the distances between the first subspace, the second space, the third space, and the fourth space and the oscillating wave module increase progressively.

12. The refrigerator according to claim 10, characterized in that, The refrigeration chamber includes a refrigerator compartment and a freezer compartment. If the refrigeration chamber includes a second space, a third space, and a fourth space, the freezer compartment contains the second space, which is located at the top of the freezer compartment. The refrigerator compartment contains the third space and the fourth space arranged sequentially from bottom to top. The oscillating wave module is located at the bottom of the second space.

13. A refrigerator, characterized in that, include: The enclosure includes a refrigeration compartment; An oscillating wave module is disposed in the housing, and the oscillating wave module is configured as a single-plate structure. Specifically, a first subspace is defined for defrosting, a second subspace is defined for meat pretreatment, a third subspace is defined for meat freezing, a fourth subspace is defined for meat preservation, and a fourth subspace is defined for fruit and vegetable preservation. In the vertical direction, the distances between the first subspace, the second subspace, the third subspace, and the fourth subspace and the oscillating wave module increase progressively. The refrigeration chamber includes the second subspace and also includes at least one of the first subspace, the second subspace, the third subspace, and the fourth subspace.

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