Radio frequency unfreezing device and refrigerator
By adjusting the distance H1 between the electrode plate and the placement surface to a ratio of 25% to 50%, the electric field distribution of the radio frequency defrosting device is optimized, solving the balance problem between defrosting speed and uniformity, and improving defrosting effect and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-31
AI Technical Summary
Existing radio frequency defrosting devices struggle to balance defrosting speed and uniformity when defrosting food, resulting in some areas of the food defrosting too quickly or defrosting unevenly.
A radio frequency defrosting device is designed. By adjusting the distance H1 between the electrode plate and the placement surface to 25% to 50% of the distance H4 between the top surface of the defrosting chamber and the placement surface, the electric field distribution is optimized to ensure that the radio frequency energy effectively penetrates the food and avoids overheating or weakening of penetration.
It achieves a good balance between defrosting speed and defrosting uniformity, avoiding problems such as overheating of food edges and slow defrosting speed, thus improving user experience and defrosting efficiency.
Smart Images
Figure CN224055236U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of radio frequency defrosting, and particularly relates to a radio frequency defrosting device and a refrigerator. Background Technology
[0002] Traditional defrosting methods, such as air defrosting and warm water defrosting, mainly rely on external heat conduction. These methods are slow and prone to nutrient loss and microbial contamination. Although microwave defrosting utilizes electromagnetic field penetration, its high frequency and poor penetration often result in overheating of the food surface while the interior remains cold, leading to uneven defrosting.
[0003] Radio frequency (RF) defrosting technology is gaining increasing attention due to its advantages such as rapid defrosting rate and greater penetration depth. RF defrosting utilizes electromagnetic waves of a specific frequency to cause polar molecules and ions in food to oscillate and generate heat, thus achieving rapid defrosting. Compared to microwave defrosting, RF defrosting, with its lower frequency and longer wavelength, can penetrate food more deeply, resulting in better defrosting quality.
[0004] However, in related technologies, when food is thawed using radio frequency defrosting devices, the balance between the thawing speed and the uniformity of thawing is poor. Utility Model Content
[0005] This application aims to at least partially solve the technical problem of poor balance between the thawing speed and thawing uniformity of food when thawing food using radio frequency thawing devices in related technologies. To this end, this application provides a radio frequency thawing device and a refrigerator.
[0006] In a first aspect, embodiments of this application provide a radio frequency defrosting device, comprising: a main body and a partition, the partition being disposed within the main body to divide the main body into a radio frequency cavity and a defrosting cavity, the defrosting cavity having a placement surface for placing an item to be defrosted; an electrode plate, installed in the radio frequency cavity, for radiating radio frequency energy into the defrosting cavity; and along the height direction of the main body, the distance H1 between the electrode plate and the placement surface is 25% to 50% of the distance H4 between the top surface of the defrosting cavity and the placement surface.
[0007] In some embodiments, along the height direction of the body, the distance H1 between the electrode plate and the placement surface is 40% to 75% of the distance H5 between the bottom surface of the radio frequency cavity and the placement surface.
[0008] In some embodiments, the distance H1 between the electrode plate and the placement surface is 35mm to 55mm.
[0009] In some embodiments, the body has a first inner surface, a second inner surface, and a plurality of side surfaces, all of which connect the first inner surface and the second inner surface; the first inner surface and the second inner surface are spaced apart, and the partition is disposed between the first inner surface and the second inner surface; the area between the first inner surface and the partition is configured as the radio frequency cavity; and the area between the second inner surface and the partition is configured as the defrosting cavity.
[0010] In some embodiments, the minimum distance L1 between the electrode plate and the side surface is less than 30% of the distance H2 between the electrode plate and the second inner surface.
[0011] In some embodiments, the first inner surface has a groove protruding in a direction away from the partition, the groove having a bottom surface and a connecting surface connecting the bottom surface and the first inner surface; along the height direction of the body, the projection of the electrode plate on the partition and the projection of the connecting surface on the partition at least partially overlap.
[0012] In some embodiments, the distance H3 between the electrode plate and the bottom surface along the height direction of the main body is 15mm to 35mm.
[0013] In some embodiments, the connecting surface is inclined.
[0014] In some embodiments, the distance between the electrode plate and the placement surface increases along the direction from the center to the edge of the electrode plate.
[0015] In some embodiments, the electrode plate has perforated holes.
[0016] In some embodiments, the main body includes a shielding shell and a drawer, the partition being disposed on the shielding shell to divide the shielding shell into the defrosting chamber and the radio frequency chamber; the drawer is slidably connected to the shielding shell; along the height direction of the main body, the distance H2 between the electrode plate and the inner top wall of the shielding shell is 150mm to 190mm, and / or, the distance H4 from the bottom surface of the drawer to the inner top wall of the shielding shell is 100mm to 140mm.
[0017] Secondly, embodiments of this application provide a refrigerator, including a cabinet and the radio frequency defrosting device described in the first aspect.
[0018] This utility model has at least the following beneficial effects:
[0019] The radio frequency defrosting device includes a main body, a partition, and electrodes. The partition is disposed within the main body, dividing the main body into a radio frequency cavity and a defrosting cavity. The defrosting cavity has a placement surface for placing items to be defrosted. The electrodes are installed in the radio frequency cavity for radiating radio frequency energy into the defrosting cavity. Along the height direction of the main body, the distance H1 between the electrodes and the placement surface is 25% to 50% of the distance H4 between the top surface of the defrosting cavity and the placement surface.
[0020] When the ratio of H1 to H4 is less than 25%, the distance H1 between the electrode and the placement surface is small, and the electric field will concentrate and intensify at the edges of the food, resulting in severe edge effects and easy overheating of the food edges. When the ratio of H1 to H4 is greater than 50%, the distance H1 between the electrode and the placement surface is large, and the penetration of radio frequency energy will be weakened, resulting in a slower defrosting speed and a poor user experience. The distance H1 between the electrode and the placement surface is 25% to 50% of the distance H4 between the top surface of the defrosting chamber 100b and the placement surface 100c. This allows the radio frequency defrosting device 100 to achieve a good balance between defrosting speed and defrosting uniformity. At this ratio range, there is a good trade-off between defrosting speed and defrosting uniformity. This ratio range allows radio frequency energy to effectively penetrate the items to be defrosted, and to a certain extent avoids overheating caused by being too close and a decrease in defrosting efficiency caused by being too far. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the structure of a radio frequency defrosting device in some embodiments of this application is shown.
[0023] Figure 2 It shows Figure 1 Top view.
[0024] Figure 3 It shows along Figure 2 A cross-sectional view along the AA direction.
[0025] Figure 4 Cross-sectional views of radio frequency defrosting apparatuses in other embodiments of this application are shown.
[0026] Figure 5 A schematic diagram of the structure of the electrode plate of the radio frequency defrosting device in one or more embodiments of this application is shown.
[0027] Figure 6 A schematic diagram of the refrigerator's structure when the door is open is shown in one or more embodiments of this application.
[0028] Reference numerals: 1000-Refrigerator, 1000a-Fixed cavity, 100-Radio frequency defrosting device, 100a-Radio frequency cavity, 100b-Defrosting cavity, 100c-Placement surface, 110-Main body, 111-Shielding shell, 112-Drawer, 110a-First inner surface, 110b-Second inner surface, 110c-Side side, 110d-Groove, 110e-Bottom surface, 110f-Connecting surface, 120-Partition, 130-Electric plate, 130a-Hollow hole, 200-Box body, 300-Door body. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be noted that all directional indications in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0033] In existing technologies, radio frequency defrosting devices often face a trade-off between defrosting speed and uniformity when processing food. When prioritizing defrosting speed, uneven defrosting may occur, where some areas of the food defrost too quickly while other areas remain cold. On the other hand, when focusing on achieving uniform defrosting, defrosting speed is often sacrificed, resulting in an excessively long defrosting process.
[0034] When defrosting food using radio frequency (RF) defrosting devices, it is difficult to balance defrosting speed and defrosting uniformity. Some RF defrosting devices have a fast defrosting rate but uneven defrosting, while others have better defrosting uniformity but a lower defrosting rate.
[0035] Therefore, when thawing food, the radio frequency defrosting device in the related technology has a poor balance between the defrosting speed and the uniformity of defrosting.
[0036] This application is described below with reference to the accompanying drawings and specific embodiments:
[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the radio frequency defrosting device 100 includes: a main body 110, a partition 120, and an electrode 130. The partition 120 is disposed within the main body 110, dividing the main body 110 into a radio frequency cavity 100a and a defrosting cavity 100b. The defrosting cavity 100b has a placement surface 100c for placing items to be defrosted. The electrode 130 is installed in the radio frequency cavity 100a and is used to radiate radio frequency energy into the defrosting cavity 100b. Along the height direction of the main body 110, the distance H1 between the electrode 130 and the placement surface 100c is 25% to 50% of the distance H4 between the top surface of the defrosting cavity 100b and the placement surface 100c.
[0038] The main body 110 has a chamber, and a partition 120 is disposed within the main body 110, dividing the chamber into a radio frequency chamber 100a and a defrosting chamber 100b. The partition 120 can be connected to the main body 110 or the electrode plate 130 by bolts, glue, or other means, or the partition 120 can be placed directly on the main body 110 or the electrode plate 130; this is not limited in this application. One inner surface of the defrosting chamber 100b is a placement surface 100c. When defrosting an item, the item is placed inside the defrosting chamber 100b and on the placement surface 100c, which supports the item to be defrosted. The electrode plate 130 is installed inside the radio frequency chamber 100a and radiates radio frequency energy into the radio frequency chamber 100a to excite water molecules in the item to vibrate at high frequency, generating heat, thereby defrosting the item in the defrosting chamber 100b. The material and circuit principle of the electrode plate 130 are diverse and known to those skilled in the art, and will not be described in detail here.
[0039] When the ratio of H1 to H4 is less than 25%, the distance H1 between the electrode plate 130 and the placement surface 100c is small, and the electric field will concentrate and intensify at the edges of the food, resulting in severe edge effects and easy overheating of the food edges. When the ratio of H1 to H4 is greater than 50%, the distance H1 between the electrode plate 130 and the placement surface 100c is large, and the penetration of radio frequency energy will be weakened, resulting in a slower defrosting speed and a poor user experience. The distance H1 between the electrode plate 130 and the placement surface 100c is 25% to 50% of the distance H4 between the top surface of the defrosting chamber 100b and the placement surface 100c. This allows the radio frequency defrosting device 100 to achieve a good balance between defrosting speed and defrosting uniformity. At this ratio range, there is a good trade-off between defrosting speed and defrosting uniformity. This ratio range allows radio frequency energy to effectively penetrate the items to be defrosted, and to a certain extent avoids overheating caused by being too close and decreased defrosting efficiency caused by being too far.
[0040] In some embodiments, along the height direction of the body 110, the distance H1 between the electrode plate 130 and the placement surface 100c is 40% to 75% of the distance H5 between the bottom surface of the RF cavity 100a and the placement surface 100c. Similarly, when the ratio of H1 to H5 is less than 40%, the distance H1 between the electrode plate 130 and the placement surface 100c is small, and the electric field will be concentrated and enhanced at the edge of the food, resulting in severe edge effects and easy overheating of the food edges. When the ratio of H1 to H5 is greater than 75%, the distance H1 between the electrode plate 130 and the placement surface 100c is large, the penetration of RF energy will be weakened, resulting in slower defrosting speed and a poorer user experience. Setting the distance H1 between the electrode plate 130 and the placement surface 100c to 40% to 75% of the distance H5 between the bottom surface of the radio frequency cavity 100a and the placement surface 100c allows the radio frequency defrosting device 100 to achieve a good balance between defrosting speed and defrosting uniformity. At this point, there is a good trade-off between defrosting speed and defrosting uniformity. This ratio range allows radio frequency energy to effectively penetrate the items to be defrosted, and to a certain extent avoids overheating caused by being too close and a decrease in defrosting efficiency caused by being too far away.
[0041] In some embodiments, the distance H1 between the electrode plate 130 and the placement surface 100c is set to 35mm to 55mm. If the distance between the electrode plate 130 and the placement surface 100c is less than 35mm, the concentration of the electric field at the edge of the food will be enhanced, leading to a more severe edge effect and making the edges of the food prone to overheating. Setting the distance between the electrode plate 130 and the placement surface 100c to be greater than 35mm can reduce the risk of this uneven heating. However, if the distance between the electrode plate 130 and the placement surface 100c is greater than 55mm, the penetration of radio frequency energy will be weakened, resulting in a slower defrosting speed. It will also result in a larger gap between the partition 120 and the electrode plate 130, causing a smaller space in the defrosting chamber 100b. This makes it inconvenient for the radio frequency defrosting device 100 to defrost larger objects, affecting the convenience of placing food for the user and resulting in a poor user experience. Therefore, setting the distance H1 between the electrode plate 130 and the placement surface 100c to 35mm to 55mm ensures a good defrosting speed and defrosting uniformity, while having little impact on the space of the defrosting chamber 100b, which helps to provide a better user experience.
[0042] The partition 120 separates the main body 110, and the partition 120 and the inner wall of the main body 110 together form the radio frequency cavity 100a and the defrosting cavity 100b.
[0043] In some embodiments, the main body 110 has a first inner surface 110a, a second inner surface 110b, and a plurality of side surfaces 110c, all of which are connected to the first inner surface 110a and the second inner surface 110b; the first inner surface 110a and the second inner surface 110b are spaced apart, and a partition 120 is disposed between the first inner surface 110a and the second inner surface 110b; the area between the first inner surface 110a and the partition 120 is configured as a radio frequency cavity 100a, and the area between the second inner surface 110b and the partition 120 is configured as a defrosting cavity 100b.
[0044] With this design, the second inner surface 110b of the main body 110, the side surface 110c of the main body 110, and the surface of the partition 120 together form a defrosting chamber 100b, and the object to be defrosted is placed between the first inner surface 110a and the partition 120. The first inner surface 110a of the main body 110, the side surface 110c of the main body 110, and the surface of the partition 120 together form a radio frequency cavity 100a, and the electrode plate 130 is placed between the first inner surface 110a and the partition 120. The number of side surfaces 110c can be two, three, four, etc., and is not limited in this application.
[0045] In some embodiments, the first inner surface 110a and the second inner surface 110b are spaced apart along the height direction of the body 110, and the second inner surface 110b is located above the first inner surface 110a. In these embodiments, the second inner surface 110b is the top surface of the defrosting chamber 100b.
[0046] In some embodiments, the partition 120 is placed on and connected to the first inner surface 110a.
[0047] In some implementations, the minimum distance L1 between the electrode plate 130 and the side surface 110c is less than 30% of the distance H2 between the electrode plate 130 and the second inner surface 110b. With this design, the distance between the electrode plate 130 and the side surface 110c is smaller, the size of the electrode plate 130 is larger, and the projection of the electrode plate 130 onto the placement surface 100c along the direction of the main body 110 has a higher coverage of the placement surface 100c. This ensures that even when the item to be thawed is placed in the edge area of the placement surface 100c, the item can receive sufficient radio frequency energy for effective thawing, which helps to improve the user experience.
[0048] In some embodiments, the first inner surface 110a has a groove 110d protruding in a direction away from the partition 120, the groove 110d having a bottom surface 110e and a connecting surface 110f connecting the bottom surface 110e and the first inner surface 110a; along the height direction of the body 110, the projection of the electrode plate 130 on the partition 120 and the projection of the connecting surface 110f on the partition 120 at least partially overlap.
[0049] Along the height direction of the main body 110, the bottom surface 110e is located below the first inner surface 110a. The connecting surface 110f is located between the bottom surface 110e and the first inner surface 110a, connecting the bottom surface 110e and the first inner surface 110a. Along the height direction of the main body 110, the projection of the electrode plate 130 on the partition 120 and the projection of the connecting surface 110f on the partition 120 at least partially overlap, that is, along the height direction of the main body 110, the electrode plate 130 and the connecting surface 110f have an overlapping area. With this design, the electrode plate 130 can be placed on the connecting surface 110f and supported by the connecting surface 110f, and a certain distance is ensured between the electrode plate 130 and the bottom surface 110e, and a certain distance is ensured between the electrode plate 130 and the first inner surface 110a. This helps to form a more uniform electric field distribution in the defrosting chamber 100b, improve defrosting efficiency, and ensure defrosting uniformity. With this design, the first inner surface 110a, the bottom surface 110e, the connecting surface 110f, and the lower surface of the partition 120 together form the radio frequency cavity 100a.
[0050] The connecting surface 110f can be a plane, a curved surface, etc., and is not limited in this application. In some embodiments, the connecting surface 110f is inclined. It should be noted that the upper end of the connecting surface 110f is connected to the first inner surface 110a, and the lower end is connected to the bottom surface 110e. The connecting surface 110f is inclined toward the bottom surface 110e so that the groove 110d is a tapered groove with a larger upper end and a smaller lower end. Inclining the connecting surface 110f facilitates the processing of the main body 110. With this design, the main body 110 can be integrally formed by stamping or other methods to create the first inner surface 110a, the bottom surface 110e, and the connecting surface 110f.
[0051] In some embodiments, the bottom surface 110e of the groove 110d is the bottom surface of the radio frequency cavity 100a.
[0052] In some embodiments, along the height direction of the main body 110, the distance H3 between the electrode plate 130 and the bottom surface 110e is 15mm to 35mm. The electrode plate 130 is located above the bottom surface 110e, and the distance between the electrode plate 130 and the bottom surface 110e is set between 15mm and 35mm, so that there is a certain gap between the electrode plate 130 and the bottom surface 110e. On the one hand, this gap helps to form a more uniform electric field distribution in the defrosting chamber 100b, improve defrosting efficiency, and ensure defrosting uniformity; on the other hand, this gap can accommodate electronic devices electrically connected to the electrode plate 130, cooling fans for heat dissipation, control modules, and other components, facilitating the installation of these components.
[0053] like Figure 4 As shown, in some embodiments, the distance between the electrode 130 and the placement surface 100c increases along the direction from the center to the edge of the electrode 130. This design results in an upwardly convex structure for the electrode 130, with a higher central region and lower peripheral regions. This helps to concentrate the electric field strength in the central region of the defrosting chamber 100b, while making it relatively weaker at the edges. This reduces the concentration of the electric field at the edges of the food, lowering the probability of localized overheating and thus reducing the edge effect during defrosting, ensuring uniform defrosting. In other embodiments, the thickness of the electrode 130 decreases along the direction from the center to the edge, achieving the same technical effect.
[0054] like Figure 5 As shown, in some embodiments, the electrode plate 130 has a perforated hole 130a. That is, a perforated hole 130a is formed on the electrode plate 130. The number of perforated holes 130a can be one or an even number. It should be noted that when there is one perforated hole 130a, the shape of the perforated hole is symmetrical; when there is an even number of perforated holes 130a, the multiple perforated holes 130a are symmetrical along a certain center line. In some embodiments, such as... Figure 5As shown, two perforated holes 130a are provided, symmetrically arranged along the center line of the width direction of the electrode plate 130. The perforated holes 130a on the electrode plate 130 reduce its weight, thereby reducing the weight of the radio frequency defrosting device 100. Furthermore, the design of the perforated holes 130a helps adjust the distribution of the electromagnetic field within the defrosting chamber 100b according to the operating frequency of the radio frequency amplifier, improving defrosting efficiency and uniformity; it also helps reduce edge effects during defrosting, preventing overheating of food edges and ensuring uniform defrosting; and it allows the radio frequency energy radiated by the electrode plate 130 to act more concentratedly on the food, accelerating the defrosting speed. The shape of the perforated holes 130a is diverse and is not limited in this application.
[0055] In some embodiments, the main body 110 includes a shielding shell 111 and a drawer 112, with a partition 120 disposed on the shielding shell 111 to divide the shielding shell 111 into a defrosting chamber 100b and a radio frequency chamber 100a; the drawer 112 is slidably connected to the shielding shell 111.
[0056] It should be noted that drawer 112 is slidably connected to shielding shell 111. Drawer 112 can slide into or out of the defrosting chamber 100b. In these embodiments, the inner bottom surface of drawer 112 supports the item, which is the placement surface 100c. The item to be defrosted is placed on the inner bottom surface of drawer 112. The drawer 112 design makes it more convenient to retrieve the item to be defrosted. Users can directly pull out drawer 112 to access the item without having to go deep into the defrosting chamber 100b, improving operational convenience. Furthermore, this design prevents users from inserting their hands into the defrosting chamber 100b when retrieving or placing items, thus reducing the risk of electric shock and enhancing safety. Additionally, the drawer 112 design helps keep the defrosting chamber 100b clean, preventing liquid dripping during defrosting from contaminating the partition 120, and also facilitates cleaning and maintenance. When the electrode plate 130 emits radiation energy to the food to be thawed, the shielding shell 111 can shield the radiation energy, prevent energy leakage, increase the absorption rate of radio frequency energy by the food, thereby improving the thawing effect, reducing potential harm to the user, and improving the user's safety.
[0057] In some embodiments, along the height direction of the main body 110, the distance H2 between the electrode plate 130 and the inner top wall of the shielding shell 111 is 150mm to 190mm, and / or, the distance H4 from the bottom surface of the drawer 112 to the inner top wall of the shielding shell 111 is 100mm to 140mm. The inner top wall of the shielding shell 111 is the aforementioned second inner surface 110b. When the distance H2 between the electrode plate 130 and the inner top wall of the shielding shell 111 is set to 150mm to 190mm, and the accommodating space height H4 of the drawer 112 is set to 100mm to 140mm, the drawer 112 can be allowed to slide with sufficient space inside the defrosting chamber 100b, while ensuring that there is sufficient space inside the drawer 112 to place items to be defrosted. This design also allows the drawer 112 to accommodate items of different sizes to be defrosted, increasing the applicability and flexibility of the defrosting device.
[0058] like Figure 6 As shown, based on the same inventive concept, this application also provides a refrigerator 1000, including a cabinet 200 and the above-mentioned radio frequency defrosting device 100.
[0059] Integrating the radio frequency defrosting device 100 into the cabinet 200 of the refrigerator 1000 utilizes the space of the cabinet 200, reducing the space occupied in the kitchen. Simultaneously, this integrated design allows the refrigerator 1000 to not only have traditional refrigeration and freezing functions but also add the additional function of rapid defrosting, meeting users' needs for multifunctional appliances. Since the refrigerator 1000 possesses the aforementioned radio frequency defrosting device 100, it also enjoys all the beneficial effects of the radio frequency defrosting device 100, which will not be elaborated upon here.
[0060] In some embodiments, the refrigerator 1000 also includes a door 300, which, together with the cabinet 200, forms a fixed cavity 1000a for mounting the radio frequency defrosting device 100. The cabinet 200 is installed within the fixed cavity 1000a. With this design, the radio frequency defrosting device 100 can be seen after opening the door 300, allowing food to be placed in or removed from the defrosting cavity 100b of the radio frequency defrosting device 100, thus facilitating user operation.
[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0062] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0063] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A radio frequency thawing device, characterized in that, include: The main body (110) and the partition (120) are disposed inside the main body (110) and divide the main body (110) into a radio frequency cavity (100a) and a defrosting cavity (100b). The defrosting cavity (100b) has a placement surface (100c) for placing items to be defrosted. An electrode plate (130) is installed in the radio frequency cavity (100a) for radiating radio frequency energy into the defrosting cavity (100b); Along the height direction of the main body (110), the distance H1 between the electrode plate (130) and the placement surface (100c) is 25% to 50% of the distance H4 between the top surface of the thawing chamber (100b) and the placement surface (100c).
2. The radio frequency thawing device of claim 1, wherein, Along the height direction of the main body (110), the distance H1 between the electrode plate (130) and the placement surface (100c) is 40% to 75% of the distance H5 between the bottom surface of the radio frequency cavity (100a) and the placement surface (100c).
3. The radio frequency thawing device of claim 1, wherein, The distance H1 between the electrode plate (130) and the placement surface (100c) is 35mm to 55mm.
4. The radio frequency thawing device of claim 1, wherein, The main body (110) has a first inner surface (110a), a second inner surface (110b), and a plurality of side surfaces (110c), all of which connect the first inner surface (110a) and the second inner surface (110b). The first inner surface (110a) and the second inner surface (110b) are spaced apart, and the partition (120) is disposed between the first inner surface (110a) and the second inner surface (110b). The area between the first inner surface (110a) and the partition (120) is configured as the radio frequency cavity (100a). The area between the second inner surface (110b) and the partition (120) is configured as the defrosting cavity (100b).
5. The radio frequency thawing apparatus of claim 4, wherein, The minimum distance L1 between the electrode plate (130) and the side surface (110c) is less than 30% of the distance H2 between the electrode plate (130) and the second inner surface (110b).
6. The radio frequency thawing apparatus of claim 4, wherein, The first inner surface (110a) has a groove (110d) protruding in a direction away from the partition (120), the groove (110d) having a bottom surface (110e) and a connecting surface (110f) connecting the bottom surface (110e) and the first inner surface (110a); Along the height direction of the main body (110), the projection of the electrode plate (130) on the partition plate (120) at least partially overlaps with the projection of the connecting surface (110f) on the partition plate (120).
7. The radio frequency thawing device of claim 6, wherein, Along the height direction of the main body (110), the distance H3 between the electrode plate (130) and the bottom surface (110e) is 15mm to 35mm.
8. The radio frequency thawing device of claim 6, wherein, The connecting surface (110f) is inclined.
9. The radio frequency thawing apparatus of any of claims 1-8, wherein, Along the direction from the center to the edge of the electrode plate (130), the distance between the electrode plate (130) and the placement surface (100c) increases.
10. The radio frequency thawing apparatus of any one of claims 1-8, wherein, The electrode plate (130) has a perforated hole (130a).
11. The radio frequency thawing apparatus of any one of claims 1-8, wherein, The main body (110) comprises a shielding shell (111) and a drawer (112), the partition plate (120) is arranged on the shielding shell (111) and divides the shielding shell (111) into the thawing cavity (100b) and the radio frequency cavity (100a); the drawer (112) is in sliding connection with the shielding shell (111); In the height direction of the main body (110), the distance H2 between the polar plate (130) and the inner top wall of the shielding shell (111) is 150mm-190mm, and / or the height H4 from the bottom surface of the drawer (112) to the inner top wall of the shielding shell (111) is 100mm-140mm.
12. A refrigerator characterized by comprising: The radio frequency thawing device (100) comprises a box body (200) and the radio frequency thawing device (100) according to any one of claims 1-11.