Unfreezing device and refrigeration equipment

Abstract

The invention discloses an unfreezing device, and relates to the technical field of refrigeration equipment, the unfreezing device comprises a shell, an electric field generation device and an air supply device, the shell is provided with an unfreezing space; the electric field generating device comprises a high-voltage power supply module and an electrode assembly, the high-voltage power supply module is used for generating an alternating electric field signal, the output voltage is 1kV-2kV, and the high-voltage power supply module drives the electrode assembly to form a periodically oscillating alternating electric field in the thawing space; and the air supply device is used for supplying air into the thawing space. When the to-be-unfrozen object is in the first temperature range, hydrogen bonds of ice are broken by utilizing periodic change shock waves of an electric field, fine microcrystals are generated, the temperature of the interior and the exterior of food materials is increased at the same time, breeding of bacteria is inhibited, and unfreezing uniformity is achieved. When the to-be-unfrozen article is in the second temperature range, the air supply device is used for increasing the unfreezing speed in a heat convection mode, and the electric field generation device is turned off to increase the energy utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, in particular to a thawing device and refrigeration equipment. Background Art

[0002] Users usually store the stockpiled meat and seafood products in the freezer of the refrigerator, and use the frozen environment to inhibit the reproduction of microorganisms and biochemical reactions to extend the shelf life of the meat. Accordingly, thawing becomes an important step before meat processing or cooking. However, in the related art, air thawing and running water thawing usually result in a long thawing time, easy microbial growth, and nutrient loss; microwave thawing has a fast thawing speed, but it is uncontrollable, and irregular ingredients are prone to overheating and ripening, resulting in a decrease in taste. In the related art, there are also solutions that use electric field thawing, but the electric field has a weak thawing ability at low temperatures, and the thawing efficiency and energy utilization are low. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a thawing device that can achieve uniform thawing and has a faster thawing rate, thereby improving thawing efficiency and energy utilization.

[0004] The present invention also provides a refrigeration device having the above-mentioned thawing device.

[0005] According to the first aspect of the present invention, the thawing device comprises: a shell, an electric field generating device and an air supply device, wherein the shell is provided with a thawing space; the electric field generating device comprises a high-voltage power supply module and an electrode assembly, wherein the high-voltage power supply module is used to generate an alternating electric field signal, and the output voltage is 1 kV to 2 kV, and the high-voltage power supply module drives the electrode assembly to form a periodically oscillating alternating electric field in the thawing space; the air supply device is used to supply air to the interior of the thawing space; wherein, the items to be thawed will be in a first temperature range and a second temperature range during the thawing process, the minimum temperature value of the first temperature range being greater than the maximum temperature value of the second temperature range, when the items to be thawed are in the first temperature range, the electric field generating device is turned on, and when the items to be thawed are in the second temperature range, the air supply device is turned on, and the electric field generating device is turned off.

[0006] The thawing device according to the embodiment of the present invention has at least the following beneficial effects: when the item to be thawed is in the first temperature range, the shock wave of the periodic change of the electric field is used to break the hydrogen bond of the ice, generate fine crystals, so that the inside and outside of the food are heated at the same time, and the reproduction of bacteria is inhibited to achieve uniform thawing. When the item to be thawed is in the second temperature range, the air supply device is used to increase the thawing rate by heat convection, and the electric field generating device is turned off to improve energy utilization.

[0007] According to some embodiments of the present invention, the shell includes a heat conducting plate, the heat conducting plate is located at the bottom of the shell, and the material of the heat conducting plate is metal.

[0008] According to some embodiments of the present invention, the heat conducting plate is made of aluminum alloy.

[0009] According to some embodiments of the present invention, a fin portion is provided on a side of the heat conducting plate facing away from the thawing space.

[0010] According to some embodiments of the present invention, the electrode assembly is a single electrode structure.

[0011] According to some embodiments of the present invention, the electrode assembly includes an arc-shaped electrode, and the arc-shaped electrode is arranged around the air supply device.

[0012] According to some embodiments of the present invention, the material of the arc electrode includes at least one of stainless steel, copper alloy, and aluminum alloy.

[0013] According to some embodiments of the present invention, the thickness of the arc electrode is 1 mm to 3 mm.

[0014] According to some embodiments of the present invention, the air volume of the air supply device is 29.40 CFM to 58.83 CFM.

[0015] According to some embodiments of the present invention, the minimum temperature value of the first temperature range is greater than -5°C.

[0016] According to some embodiments of the present invention, the maximum temperature value of the first temperature range is less than or equal to -1°C.

[0017] A refrigeration device according to an embodiment of the second aspect of the present invention comprises a thawing device according to an embodiment of the first aspect of the present invention.

[0018] The refrigeration device according to the embodiment of the present invention has at least the following beneficial effects: by adopting the thawing device of the first aspect of the present invention, uniform thawing can be achieved and a faster thawing rate can be achieved. Moreover, when the thawing device is applied to the refrigeration device, the thawed food can be kept fresh in a low temperature environment and the storage time can be extended.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 An exploded view of a thawing device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional view of the thawing device is shown;

[0023] Figure 3 for Figure 1 The schematic diagram of the assembly of the electric field generating device and the air supply device is shown;

[0024] Figure 4 for Figure 1 A schematic diagram of the lower cover is shown.

[0025] Reference numerals:

[0026] 101, housing; 102, air supply device; 103, high-voltage power module; 104, thawing space; 105, frame; 106, heat conducting plate; 107, arc electrode; 108, upper cover; 109, lower cover; 110, drawer cover;

[0027] 201. Concave part;

[0028] 401, mounting cavity; 402, first through hole; 403, second through hole. DETAILED DESCRIPTION

[0029] 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 throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The food in the freezer compartment of the refrigerator is in a frozen state and cannot be eaten directly, so before cooking frozen meat and other foods, they must be thawed, and the thawing process also brings inconvenience to users.

[0034] At present, most consumers use room temperature water, hot water, and room temperature air to thaw. Some people also use microwaves to thaw, but although microwave thawing is fast, it thaws unevenly, often causing partial discoloration or even ripening of meat. Therefore, microwave thawing is not widely used in households.

[0035] In the related art, a solution is proposed, in which a thawing space is provided on the upper part of the refrigerator, a vent is provided on the top of the thawing space, a pump is provided on the lower part of the refrigerator, a water inlet pipe is provided on the bottom plate of the thawing space, a solenoid valve is provided on the pipe, a water outlet pipe is connected to the pump, an electric heater is provided on the bottom plate of the thawing space, a fan is provided on the wall of the thawing space, and a shutter is provided on the rear wall of the thawing space. The central processor automatically selects natural thawing, ventilation thawing, waste water thawing, and electric thawing. The thawing method of this solution is relatively complicated and requires the installation of water pipes, solenoid valves, pumps and other structures.

[0036] In the related art, a solution is also proposed, in which a refrigerator thawing device mainly consists of a far-infrared radiation source, a reflective device, a food rack, a water collection box, an exhaust fan, a control panel, an inner shell, and a door, and uses a far-infrared radiation source to thaw the food in the refrigerator from the outside to the inside. Far-infrared thawing equipment is more expensive than traditional thawing equipment, and far-infrared radiation may change some chemical components in food, such as causing the evaporation of water in food, which may affect the taste and nutritional value of food.

[0037] In the related art, a solution is also proposed, which is to set a vibration device in the thawing space of the refrigerator, which makes the rapid freezing plate vibrate, and by applying vibration to the stored objects, the heat inside the frozen objects can be quickly diffused outward, so that the thawing can be carried out more quickly. The thawing rate of this solution is still relatively slow and cannot meet user needs.

[0038] Refer to the following Figures 1 to 4 The present invention provides a thawing device and refrigeration equipment, which can solve the problems of the prior art such as complex thawing methods and device structures, long time consumption, uneven thawing and large nutritional loss of thawed food.

[0039] Figure 1 is an exploded view of a thawing device in one embodiment of the present invention, referring to Figure 1The thawing device includes a shell 101, an electric field generating device and an air supply device 102. The shell 101 has a certain volume. The shell 101 is provided with a thawing space 104 for placing the food to be thawed. The electric field generating device is used to generate an electric field to the inside of the shell 101. It can be understood that the electric field generating device releases high-energy particles to exchange heat with the food by generating an electric field. At the same time, the electric field promotes the polarization of water molecules in the food placed in the thawing drawer, which can accelerate the thawing process of the food. The electric field generating device includes a high-voltage power supply module 103 and an electrode assembly. The high-voltage power supply module 103 is used to generate an alternating electric field signal, and the output voltage is 1kV to 2kV, that is, the output voltage is high voltage. The high-voltage power supply module 103 drives the electrode assembly to form a periodically oscillating alternating electric field in the thawing space 104, and uses the periodic change of the electric field to break the hydrogen bonds of the ice and produce fine microcrystals, so that the inside and outside of the food are heated at the same time, and the reproduction of bacteria is inhibited to achieve uniform thawing. The electric field generated by the electric field generating device in this embodiment is a high-voltage electric field, which can destroy the hydrogen bonds of the ice layer inside the food, so that the inside and outside of the food can be thawed at the same time. At the same time, the high-voltage electric field can release high-speed high-energy particles, which can accelerate the movement of water molecules on the surface of the food by hitting the surface of the food, thereby accelerating the thawing of the food. The air supply device 102 is used to supply air to the inside of the thawing space 104. The air supply device 102 accelerates the convection rate inside the thawing space 104 by supplying air to the inside of the thawing space 104, thereby accelerating the thawing process of the food.

[0040] It is understandable that the frequency of the high-voltage power supply module 103 can be set to 10kHz to 30kHz. The thawing principle of high-frequency electromagnetic waves is to use the dielectric properties of the material to perform heating and thawing. The polar molecules (called dipoles) in the thawed food material are moving in a disorderly and irregular manner. For example, water is a polar molecule. When no electric field is applied, the polar molecules point to any direction; when the switch is closed, that is, in the electric field, the polar molecules will be rearranged, with the positive end facing the negative pole and the negative end facing the positive pole. If the direction of the electric field is changed, the orientation of the polar molecules will also change accordingly. If the high-frequency electric field changes direction rapidly and alternately, the polar molecules will also swing rapidly. Due to the thermal motion of the molecules and the interaction between adjacent molecules, the regular swinging of the polar molecules with the change of the electric field direction will be disturbed and hindered, that is, a friction-like effect is generated, so that the molecules gain energy and express it in the form of heat, which is manifested as an increase in the temperature of the thawed food material, thereby thawing.

[0041] It can be seen that when the thawing device in this embodiment is working, a high-frequency electric field is formed in the thawing space 104, thereby generating high-frequency electromagnetic waves to act on the thawed food, so that the molecules of the entire food are affected by the high-frequency electromagnetic waves, and the polarity of its polar molecules changes at a high frequency, so that the thawed food is heated inside and outside at the same time to thaw. It can be seen that the thawing device in this embodiment has a simple structure, and the high-frequency electromagnetic wave thawing speed is fast, the thawing is uniform, and the nutritional loss is small.

[0042] It can be understood that the high-voltage electric field is a comprehensive effect field, which has the effects of electromagnetic field radiation and non-uniform electric field, as well as the effect of ion beam. Since water molecules are polar molecules, the forces they are subjected to in the non-uniform electric field are different everywhere, which is equivalent to the effect of variable force, thus destroying the stable and orderly hydrogen bond structure, causing the ice to gradually transition to the state of water. The internal injection effect of the ion beam includes two aspects: energy exchange and charge transfer. In terms of energy exchange, after the energy-carrying ions enter the water-containing material, they interact with the material molecules and water molecules, gradually transferring kinetic energy to the material molecules and water molecules until the kinetic energy of the ions is completely dissipated and stops in the material, that is, the transmission and deposition process of the incident ion energy increases the energy of the original water molecules, causing the hydrogen bonds between the water molecules in the chain molecular clusters to break. In terms of charge transfer, ions and water molecules exchange charges, which increases the electric dipole moment of water molecules in the material, enhances the directional polarization of water molecules, improves the polarity of water, increases the energy storage of the water system and the ability of water to carry ions, and allows low-energy ions to combine with water molecules, even if the number of charges carried by water molecules increases. As a result, the electric field force on water molecules increases under the action of the electric field.

[0043] It should be noted that, because the food to be thawed is generally taken out from the freezer, the temperature of the food is lower than -5°C when it is taken out, for example, the temperature of the food is -18°C, -24°C or -30°C. The food to be thawed will be in the first temperature range and the second temperature range during the thawing process. The first temperature range and the second temperature range are two continuous temperature segments. The minimum temperature value of the first temperature range is greater than the maximum temperature value of the second temperature range, and the two temperature segments do not overlap. For example, the first temperature range is the interval of (-5°C, -1°C], and the second temperature range is the interval of [-30°C, -5°C].

[0044] The electric field mainly affects the maximum ice crystal zone, which is the range of -5°C to -1°C, and the thawing effect of the electric field below -5°C is slightly weaker. Thermal convection can maintain a good thawing effect in a low temperature environment, but there is a problem that the external thawing rate is higher than the internal thawing rate and the thawing is uneven inside and outside. When the temperature is above -5°C, the thawing effect of the electric field is more significant, and the thawing uniformity is better, while the thawing effect of the air supply device 102 is relatively weak.

[0045] Therefore, when the items to be thawed are in the first temperature range, starting the electric field generating device can achieve a good thawing effect, allowing the inside and outside of the food to be thawed to heat up at the same time. When the items to be thawed are in the second temperature range, the air supply device is turned on and the electric field generating device is turned off. In other words, in the thawing process, the air supply device 102 plays the main thawing role in the first half, using the higher ambient temperature (for example, 4°C in the refrigerator) to exchange heat with the food through thermal convection, thereby increasing the thawing rate. In the second half, the electric field generating device plays the main thawing role.

[0046] In addition, considering issues such as safety and the life of the power supply, the electric field generating device uses a high-voltage power supply module 103. If the electric field generating device is kept turned on during the entire thawing process, the safety is low and the life of the power supply will be reduced.

[0047] The cooperation of the electric field generating device and the air supply device 102 overcomes the defect that the electric field has a weak thawing effect below -5°C, and improves the thawing rate. The shock wave of the periodic change of the electric field breaks the hydrogen bonds of the ice, produces fine microcrystals, heats up the inside and outside of the food at the same time, inhibits the reproduction of bacteria, and improves the uniformity and safety of thawing.

[0048] It should be noted that the items to be thawed are not necessarily food materials, but may also be items for other purposes. Moreover, the specific values ​​of the first temperature range and the second temperature range may be appropriately adjusted according to different environments. In addition, during the thawing process, the air device 102 may be turned on throughout the entire process, or may be turned on only in the first half of the thawing process, that is, when the items to be thawed are in the second temperature range, the air supply device is turned on, and when the items to be thawed are in the first temperature range, the air supply device is turned off.

[0049] Reference Figure 1 As shown, it can be understood that the housing 101 includes a frame 105 and a heat conducting plate 106, and the frame 105 is provided with a panel around it, and the upper and lower ends of the frame 105 are open. The heat conducting plate 106 is installed at the lower part of the frame 105 to close the lower side opening of the frame 105, that is, the heat conducting plate 106 is located at the bottom of the housing 101. The material of the heat conducting plate 106 is metal, and the food to be thawed is placed on the heat conducting plate 106, and the advantage of the high heat dissipation efficiency of the metal material is used to assist in thawing, that is, heat exchange by heat conduction can accelerate the thawing rate. Since the air supply device 102 can only blow to the part of the food that is not in contact with the heat conducting plate 106, and the part of the food that is in contact with the heat conducting plate 106 is difficult to accelerate thawing by heat convection, this embodiment overcomes the defects of the air supply device 102 by setting the material of the heat conducting plate 106 to be metal, thereby further improving the thawing rate.

[0050] It is understandable that the material of the heat conducting plate 106 is an aluminum alloy material, such as 6063, 6061, and 1015 series aluminum alloy materials with high thermal conductivity. 6063 and 6061 aluminum alloy materials have some common characteristics. They are both aluminum alloys, with good material toughness, impact resistance, processing performance, excellent electrical conductivity and thermal conductivity, and good corrosion resistance. Specifically: the main alloying elements of the 6061 alloy are magnesium and silicon, which have good corrosion resistance after heat treatment. It is generally used in structural parts and is the most frequently used aluminum alloy. The main alloying elements of the 6063 alloy are also magnesium and silicon, but its processing performance is excellent, and its excellent weldability, extrudability and electroplating properties make it easy to perform various processing operations, and it is particularly suitable for products that need to be extruded, such as building profiles, irrigation pipes, etc. However, the 1015 aluminum alloy material is different from the 6063 and 6061 aluminum alloys. It is a kind of deformed aluminum alloy with strength close to that of cast aluminum alloy. It has good corrosion resistance and weather resistance. It is mainly used to manufacture pistons, cylinder heads and other machinery and equipment.

[0051] It is understandable that a fin portion is provided at the bottom of the heat conducting plate 106. The fin portion is formed by a series of parallel thin sheets, and the fin portion is fixed to the side of the heat conducting plate 106 away from the food, and is used to increase the surface area of ​​the heat conducting plate 106 to improve the heat exchange efficiency. By providing the fin portion at the bottom of the heat conducting plate 106, the heat transfer area is increased, the heat transfer speed is accelerated, and thus the thawing speed is improved.

[0052] Reference Figure 1 and Figure 2 As shown, it can be understood that the electrode assembly is a single electrode structure, that is, the high-voltage power supply module 103 drives only one electrode. The advantages of the single electrode structure are simplicity, ease of manufacture and maintenance, and can be applied to foods of different shapes and sizes. However, since there is only one electrode, the current can only flow between the electrode and the food, resulting in uneven current distribution and limited thawing effect. Therefore, in practical applications, the single electrode structure is usually used in combination with other thawing methods to improve the thawing speed and thawing effect. In the present embodiment, by combining the blowing device and the heat conducting plate 106, the thawing speed and thawing effect can be improved, and the advantages of the single electrode structure being simple, easy to manufacture and maintain are taken into account.

[0053] Reference Figure 1 and Figure 3As shown, it can be understood that the electrode assembly includes an arc-shaped electrode 107, which is arranged around the air supply device 102. The arc-shaped electrode 107 can maximize the use of space, helping to reduce the overall size and weight of the device, making it more compact and lightweight. The shape of the arc-shaped electrode 107 optimizes the current conduction path, making the spatial distribution of the electric field in the thawing space 104 more uniform, that is, on the horizontal plane, the arc-shaped electrode 107 can cover a larger area, and the cooperation space with the air supply device 102 is compact, thus ensuring the uniformity of food thawing and reducing the situation of uneven thawing. Compared with the traditional straight plate electrode, the arc-shaped electrode 107 can make more effective use of the limited space and improve the power density of the device, which means that within the same thawing time, the device using the arc-shaped electrode 107 can process more food. The heat distribution of the arc-shaped electrode 107 is more uniform, which can effectively reduce the temperature fluctuation of food during the thawing process, reduce the damage to food, and improve the thawing effect. In summary, setting the electrode as arc-shaped can bring various advantages in the design and performance of the thawing device. These advantages are beneficial to improving the overall performance of the device, reducing the manufacturing cost, and facilitating large-scale production.

[0054] It should be noted that the arc-shaped electrode 107 not only refers to the structure with an arc-shaped outer edge of the electrode, but also includes the structure with an overall shape similar to an arc, such as the electrode is divided into three sections and combined to form a "匚"-shaped structure.

[0055] It can be understood that the material of the arc-shaped electrode 107 includes at least one of stainless steel, copper alloy, and aluminum alloy. The material selection of the electrode has a great impact on the performance of the thawing device. The stainless steel electrode has strong corrosion resistance and can be used in various environments; it has good thermal conductivity, which is conducive to rapid heat transfer; it is easy to process and manufacture and can meet the electrode requirements of various shapes and sizes. The copper electrode has excellent electrical conductivity and thermal conductivity and can transfer heat quickly; it has strong corrosion resistance and can be used in various environments. The aluminum alloy electrode has good electrical conductivity and thermal conductivity and can transfer heat quickly; the cost is relatively low, which is beneficial to reducing the manufacturing cost of the device.

[0056] It can be understood that the thickness of the arc-shaped electrode 107 is 1 mm to 3 mm. When the thickness of the arc-shaped electrode 107 is less than 1 mm, the arc-shaped electrode 107 is too thin and brittle, and it is easy to break during use. When the thickness of the arc-shaped electrode 107 is greater than 3 mm, the arc-shaped electrode 107 is too thick, resulting in a higher cost. Exemplarily, the thickness of the arc-shaped electrode 107 is 1 mm and the material is 304 stainless steel; or the thickness of the arc-shaped electrode 107 is 2 mm and the material is copper.

[0057] It is understandable that the air volume of the air supply device 102 is 29.40 CFM to 58.83 CFM, that is, the gas flow rate of the air supply device 102 is 29.40 cubic feet per minute to 58.83 cubic feet per minute. When the air volume of the air supply device 102 is less than 29.40 CFM, the thawing effect is poor. When the air volume of the air supply device 102 is greater than 58.83 CFM, the thawing effect is not significantly improved compared to 58.83 CFM.

[0058] It is understandable that the air supply device 102 can be selected to be an axial flow fan. The design principle of the axial flow fan is to use the pushing effect generated when the impeller rotates to increase the energy and pressure of the gas. When the impeller rotates, the gas enters the impeller axially from the air inlet, is pushed by the blades on the impeller, and the energy of the gas is increased, and then flows into the guide vane. The main purpose of this design is to improve the flow efficiency of the gas, while also reducing noise and energy consumption.

[0059] Reference Figure 1 and Figure 4 As shown, it can be understood that the thawing device further includes an upper cover plate 108 and a lower cover plate 109, the lower cover plate 109 is provided with an installation cavity 401, the electric field generating device and the air supply device 102 are located in the installation cavity 401, the upper cover plate 108 is covered on the lower cover plate 109, and the lower cover plate 109 is located above the housing 101. The upper cover plate 108 and the lower cover plate 109 can be detachably connected by means of a snap connection, a screw connection, etc.

[0060] Reference Figure 4 As shown, it can be understood that a first through hole 402 is provided on the bottom surface of the lower cover plate 109, and a second through hole 403 is provided on the peripheral surface of the lower cover plate 109. The gas enters the air inlet of the axial flow fan from the second through hole 403, and is then blown out from the air outlet of the axial flow fan and enters the thawing space 104 through the first through hole 402.

[0061] Reference Figure 2 and Figure 4 As shown, it can be understood that a concave portion 201 is provided on one side of the lower cover plate 109 facing the upper cover plate 108, and a convex portion is correspondingly formed on the side of the lower cover plate 109 facing away from the upper cover plate 108, and part of the air supply device 102 is accommodated in the concave portion 201. Since the height of the air supply device 102 is higher than the high-voltage power module 103 and the electrode assembly, the air supply device 102 can be better accommodated by providing the concave portion 201, that is, the air supply device 102 with a higher height can be installed by protruding the local structure without increasing the size of the lower cover plate 109 as a whole, so that the size of the lower cover plate 109 is smaller, the parts structure in the installation cavity 401 is more compact, and the thawing space 104 is effectively utilized.

[0062] The embodiment of the present invention further provides a refrigeration device, comprising the thawing device of the above embodiment. For example, the refrigeration device is provided with a thawing chamber, the setting temperature of the thawing chamber is 4°C, and the thawing device is located in the thawing chamber. The housing 101 of the thawing device is configured as a thawing drawer, and the refrigeration device is provided with a drawer cover 110 (refer to Figure 1 ), the electric field generating device and the air supply device 102 are arranged on the upper cover plate 108.

[0063] It is understandable that the refrigeration equipment may be a refrigerator, a freezer or the like.

[0064] It should be noted that the thawing device can also be used as an independent device.

[0065] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A thawing device, characterized in that: include: The shell is provided with a thawing space; An electric field generating device, comprising a high-voltage power supply module and an electrode assembly, wherein the high-voltage power supply module is used to generate an alternating electric field signal, and the output voltage is 1 kV to 2 kV, and the high-voltage power supply module drives the electrode assembly to form a periodically oscillating alternating electric field in the thawing space; An air supply device, used for supplying air to the interior of the thawing space; In which, the items to be thawed will be in a first temperature range and a second temperature range during the thawing process, the minimum temperature value of the first temperature range is greater than the maximum temperature value of the second temperature range, when the items to be thawed are in the first temperature range, the electric field generating device is turned on, and when the items to be thawed are in the second temperature range, the air supply device is turned on and the electric field generating device is turned off.

2. The thawing device according to claim 1, characterized in that: The shell includes a heat conducting plate, the heat conducting plate is located at the bottom of the shell, and the material of the heat conducting plate is metal.

3. The thawing device according to claim 2, characterized in that: The heat conducting plate is made of aluminum alloy.

4. The thawing device according to claim 2, characterized in that: A fin portion is provided on a side of the heat conducting plate facing away from the thawing space.

5. The thawing device according to any one of claims 1 to 4, characterized in that: The electrode assembly is a single electrode structure.

6. The thawing device according to claim 5, characterized in that: The electrode assembly includes an arc electrode, and the arc electrode is arranged around the air supply device.

7. The thawing device according to claim 6, characterized in that: The material of the arc electrode includes at least one of stainless steel, copper alloy and aluminum alloy.

8. The thawing device according to claim 6, characterized in that: The thickness of the arc electrode is 1 mm to 3 mm.

9. The thawing device according to claim 1, characterized in that: The air volume of the air supply device is 29.40 CFM to 58.83 CFM.

10. The thawing device according to claim 1, characterized in that: The minimum temperature value of the first temperature range is greater than -5°C.

11. The thawing device according to claim 10, characterized in that: The maximum temperature value of the first temperature range is less than or equal to -1°C.

12. Refrigeration equipment, characterized in that A thawing device comprising the thawing device according to any one of claims 1 to 11.

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