Radio frequency defrosting device and refrigerator

Abstract

This utility model belongs to the field of electrical technology, specifically relating to a radio frequency defrosting device and a refrigerator. The radio frequency defrosting device includes: a cabinet with a take-out opening; a door movably connected to the cabinet to open and close the take-out opening; and a first shielding member disposed between the cabinet and the door to seal the take-out opening; wherein, one of the cabinet and the door has a protrusion, and the other has a first groove, the protrusion being embedded in the first groove, and the first shielding member being disposed between the protrusion and the first groove.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, specifically relating to a radio frequency defrosting device and a refrigerator. Background Technology

[0002] Frozen food materials can be thawed using radio frequency (RF) heating. RF heating avoids the problem of slow heating speed caused by traditional heating methods, which heat from the outside in and are limited by the thermal conductivity of the food itself. It can quickly raise the temperature of food materials to the required temperature.

[0003] In related technologies, radio frequency defrosting devices may experience magnetic leakage, radiating outwards and interfering with other electronic devices. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a radio frequency defrosting device and a refrigerator, aiming to at least partially solve the technical problem of magnetic leakage in radio frequency defrosting devices, which leads to energy waste.

[0005] The technical solution of this utility model is as follows:

[0006] A radio frequency defrosting device includes: a housing with a loading / unloading opening; a door movably connected to the housing to open and close the loading / unloading opening; and a first shielding member disposed between the housing and the door to seal the loading / unloading opening; wherein one of the housing and the door has a protrusion, and the other has a first groove, the protrusion being embedded in the first groove, and the first shielding member being disposed between the protrusion and the first groove.

[0007] In some implementations, the first shielding member is fixed to the bottom wall of the first groove, and the protrusion abuts against the first shielding member.

[0008] In some embodiments, the door includes a protrusion, and the housing has a receiving portion, wherein when the door is closed and the opening is opened, the protrusion is located within the receiving portion, and the radio frequency defrosting device further includes a second shielding member located between the protrusion and the receiving portion.

[0009] In some embodiments, one of the protrusion and the receiving portion has a second groove, and the second shield is disposed in the second groove.

[0010] In some embodiments, the end face of the protrusion facing the inner wall of the receiving portion is a slope.

[0011] In some embodiments, the distance between the inclined surface and the receiving portion gradually increases along the direction from the pick-up / drop-out opening toward the receiving portion.

[0012] In some embodiments, the housing further includes a support portion connected to the receiving portion, the support portion having a third groove, and the protrusion being fitted into the third groove.

[0013] In some embodiments, the radio frequency defrosting device further includes a third shielding member located between the support and the protrusion, and disposed within the third groove.

[0014] In some embodiments, the receiving portion extends in a direction away from the pick-up / placement opening and is provided with a limiting member, the protrusion is provided with a limiting groove, and the limiting member is disposed in the limiting groove.

[0015] In some embodiments, the first groove is provided on the box body, the protrusion is provided on the door body, the limiting member is one side wall of the first groove, and the protrusion is one side wall of the limiting groove.

[0016] Based on the same inventive concept, this application also provides a refrigerator, including the aforementioned radio frequency defrosting device.

[0017] The beneficial effects of this utility model include at least the following:

[0018] Because the enclosure has an opening for taking out and putting in the contents, and the door can be movably connected to the enclosure to open and close the opening, a first shielding component is placed between the enclosure and the door to seal the opening. Therefore, when the door closes the opening, the first shielding component seals the opening, forming a closed shielding cavity with the door. This avoids gaps between the door and the enclosure, which could lead to magnetic leakage, thus improving the shielding effect of the radio frequency defrosting device and preventing energy waste.

[0019] Because one of the housing and the door has a protrusion and the other has a first groove, with the protrusion embedded in the first groove, the fitting design of the protrusion and the first groove creates a "line-to-surface" or "surface-to-surface" seal between the contact surfaces of the protrusion and the inner wall of the first groove. This eliminates the tiny gaps of traditional planar contact, ensuring a sealing effect and reducing the possibility of magnetic leakage. Moreover, the fitting of the protrusion and the first groove forms a "labyrinth-like" sealing path, extending the electromagnetic penetration path and achieving physical isolation, thus ensuring a sealing effect and further reducing the possibility of magnetic leakage and avoiding energy waste.

[0020] Since the first shielding element is located between the protrusion and the first groove, when the protrusion is embedded in the first groove, the protrusion and the first shielding element abut against each other. Therefore, the fitting design of the protrusion and the first groove and the first shielding element form a double-layer sealing structure, which ensures the sealing effect, reduces the possibility of magnetic leakage, and avoids energy waste. 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 These are schematic diagrams of the radio frequency defrosting apparatus in some embodiments;

[0023] Figure 2 for Figure 1 Cross-sectional view of the radio frequency defrosting device;

[0024] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the radio frequency defrosting device;

[0025] Figure 4 for Figure 2 A schematic diagram of the door structure of the radio frequency defrosting device;

[0026] Figure 5 for Figure 4 A sectional view of the central door body;

[0027] Figure 6 for Figure 2 A schematic diagram of the housing section of the radio frequency defrosting device;

[0028] Figure 7 for Figure 6 A sectional view of the central accommodating section;

[0029] Figure 8 This is a schematic diagram of the support portion of a radio frequency defrosting device according to some embodiments.

[0030] In the attached image:

[0031] Box body 10, opening 11, first groove 12, receiving part 13, support part 14, third groove 15, limiting member 16;

[0032] Door body 20, protrusion 21, projection 22, second groove 23, inclined surface 24, limiting groove 25;

[0033] First shielding component 30;

[0034] Second shielding component 40;

[0035] Third shielding component 50. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] In related technologies, food to be thawed is placed in the chamber of an RF defrosting device. When the door is closed, a shielded chamber is formed inside the RF defrosting device, allowing the device to defrost the food using RF energy. However, when the door is closed, it is prone to tilting or not closing properly, resulting in gaps. Consequently, during the defrosting process, the food may experience magnetic leakage, radiating outwards and interfering with other electronic devices.

[0041] To address the aforementioned technical problems, this application provides a radio frequency defrosting device and a refrigerator, wherein a protrusion is embedded in a first groove, and a first shielding member is disposed between the protrusion and the first groove to seal the gap between the door and the refrigerator body. The specific details of the radio frequency defrosting device are now further described with reference to the accompanying drawings.

[0042] Figure 1 These are schematic diagrams of the radio frequency defrosting apparatus in some embodiments; Figure 2 for Figure 1 Cross-sectional view of the radio frequency defrosting device; Figure 3 for Figure 2 Enlarged schematic diagram of point A in the radio frequency defrosting device. (Combined with...) Figure 1 , Figure 2 and Figure 3 The radio frequency defrosting device according to this application includes: a housing 10, a door 20, and a first shielding member 30. The housing 10 has a loading / unloading opening 11. The door 20 is movably connected to the housing 10 to open and close the loading / unloading opening 11. The first shielding member 30 is disposed between the housing 10 and the door 20 to seal the loading / unloading opening 11. One of the housing 10 and the door 20 has a protrusion 21, and the other has a first groove 12. The protrusion 21 is embedded in the first groove 12, and the first shielding member 30 is disposed between the protrusion 21 and the first groove 12.

[0043] Since the housing 10 has a loading / unloading opening 11, and the door 20 is movably connected to the housing 10 to open and close the loading / unloading opening 11, the first shielding member 30 is disposed between the housing 10 and the door 20 to seal the loading / unloading opening 11. Therefore, when the door 20 closes the loading / unloading opening 11, the first shielding member 30 seals the loading / unloading opening 11, so that the first shielding member 30 and the door 20 form a closed shielding cavity. This avoids gaps between the door 20 and the housing 10 to a certain extent, which could lead to magnetic leakage. This improves the shielding effect of the radio frequency defrosting device and prevents radiation from the outside, thus avoiding interference with other electronic devices.

[0044] Since one of the housing 10 and the door 20 has a protrusion 21 and the other has a first groove 12, and the protrusion 21 is embedded in the first groove 12, the fitting design of the protrusion 21 and the first groove 12 makes the contact surface between the protrusion 21 and the inner wall of the first groove 12 form a "line-to-surface" or "surface-to-surface" seal, eliminating the small gaps of traditional planar contact, ensuring the sealing effect, reducing the possibility of magnetic leakage, and forming a "maze-like" sealing path, which extends the electromagnetic penetration path, achieves physical isolation, ensures the sealing effect, further reduces the possibility of magnetic leakage, and avoids energy waste.

[0045] Since the first shielding element 30 is located between the protrusion 21 and the first groove 12, when the protrusion 21 is embedded in the first groove 12, the protrusion 21 and the first shielding element 30 abut against each other. Therefore, the fitting design of the protrusion 21 and the first groove 12 and the first shielding element 30 form a double-layer sealing structure, which ensures the sealing effect, reduces the possibility of magnetic leakage, and avoids radiation to the outside, thus preventing interference with other electronic devices.

[0046] In some embodiments, since the first shielding member 30 is disposed in the first groove 12, the first groove 12 provides an installation space for the first shielding member 30. Moreover, after the first shielding member 30 is installed in the first groove 12, the inner wall of the first groove 12 can limit the first shielding member 30, thereby improving the installation stability of the first shielding member 30 and also improving the structural compactness of the radio frequency defrosting device.

[0047] Of course, in some other embodiments, the first shield 30 can also be provided on the protrusion 21. When the first shield 30 needs to be replaced, it can be operated directly on the protrusion 21 to improve the efficiency of disassembly and assembly.

[0048] In some embodiments, the door 20 has a protrusion 21, and the housing 10 has a first groove 12. Of course, in other embodiments, the housing 10 has a protrusion 21, and the door 20 has a first groove 12.

[0049] In some embodiments, the shape of the first shield 30 is adapted to the shape of the pick-up and put-down opening 11, thereby ensuring that the first shield 30 can fully seal the pick-up and put-down opening 11.

[0050] In some embodiments, the first shielding member 30 can be conductive silicone, which is flexible and deformable, so that the first shielding member 30 can increase the product's elasticity through shape change, thereby increasing the sealing effect.

[0051] Since the shape of the first shielding member 30 is adapted to the shape of the opening 11, the first shielding member 30 can be roughly rectangular ring structure. The cross-section of the first shielding member 30 can be semi-circular, that is, the four corners of the first shielding member 30 can be transitioned by semi-circles. Thus, when the inner wall surface of the first groove 12 is uneven, the first shielding member 30 can be effectively deformed towards the inner wall of the first groove 12 by the pressure of the protrusion 21, thus compensating for the unevenness and forming an effective seal.

[0052] In some embodiments, when the radio frequency defrosting device includes a drawer, the drawer is slidably disposed within the housing 10, and the door 20 can be part of the drawer so that the door 20 can be opened and closed with the access opening 11. Of course, in some other embodiments, the door 20 is flip-mounted and connected to the housing 10 so that the door 20 can be opened and closed with the access opening 11.

[0053] Combination Figure 3In some embodiments, in order to ensure the service life of the first shielding member 30, the first shielding member 30 is fixed to the bottom wall of the first groove 12. During the opening and closing of the door 20 opening and closing of the access port 11, the first shielding member 30 will not move with the opening and closing of the door 20, reducing friction and reducing the wear of the first shielding member 30. Moreover, the first shielding member 30 is always located in the first groove 12. After the door 20 opens the access port 11, it will not leave the first groove 12 with the movement of the door 20, preventing external debris from contacting the first shielding member 30, ensuring the safety of the first shielding member 30, and improving the service life of the first shielding member 30.

[0054] In some embodiments, since the first shielding member 30 is fixed to the bottom wall of the first groove 12, when installing the first shielding member 30, the first shielding member 30 can be directly inserted into the first groove 12 through the opening of the first groove 12 and pushed into the first groove 12 until the first shielding member 30 abuts against the bottom wall of the first groove 12. The operator can directly install the first shielding member 30 through the opening of the first groove 12 without lifting or pressing the first shielding member 30, which facilitates the installation of the first shielding member 30 and improves installation efficiency.

[0055] Of course, in some other embodiments, the first shielding member 30 may be installed on the sidewall of the first groove 12. The sidewall of the first groove 12 is connected at an angle to the bottom wall of the first groove 12.

[0056] Figure 4 for Figure 2 A schematic diagram of the door structure of the radio frequency defrosting device; Figure 5 for Figure 4 A sectional view of the central door body; Figure 6 for Figure 2 A schematic diagram of the housing section of the radio frequency defrosting device; Figure 7 for Figure 6 A sectional view of the central receiving section. (Combined) Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, to further ensure a sealing effect, the door 20 includes a protrusion 22, and the housing 10 has a receiving portion 13. When the door 20 closes the access opening 11, the protrusion 22 is located within the receiving portion 13. The radio frequency defrosting device also includes a second shield 40. The second shield 40 is located between the protrusion 22 and the receiving portion 13.

[0057] When the door 20 closes the loading / unloading port 11, the protrusion 22 is located inside the receiving portion 13, and the second shielding member 40 is located between the protrusion 22 and the receiving portion 13. This can seal the gap between the protrusion 22 and the receiving portion 13, thereby avoiding the occurrence of gaps between the door 20 and the box 10 to a certain extent, which could lead to magnetic leakage. This ensures the sealing effect, improves the shielding effect of the radio frequency defrosting device, and prevents radiation from the outside, thus avoiding interference with other electronic devices.

[0058] In some embodiments, the second shielding element 40 can be conductive silicone, which is flexible and deformable, thereby increasing the product's elasticity through shape changes and thus enhancing the sealing effect. Of course, in other embodiments, the second shielding element 40 can be a beryllium copper sheet.

[0059] Combination Figure 3 In some embodiments, to facilitate the installation of the second shielding member 40, one of the protrusion 22 and the receiving portion 13 is provided with a second groove 23. The second shielding member 40 is disposed in the second groove 23. The second groove 23 provides installation space for the second shielding member 40. Moreover, after the second shielding member 40 is installed in the second groove 23, the inner wall of the second groove 23 can limit the second shielding member 40, thereby improving the installation stability of the second shielding member 40 and also improving the structural compactness of the radio frequency defrosting device.

[0060] In some embodiments, the protrusion 22 has a second groove 23. Of course, in other embodiments, the receiving portion 13 has a second groove 23.

[0061] Combination Figure 3 and Figure 5 In some embodiments, to further ensure the sealing effect, the end face of the protrusion 22 facing the inner wall of the receiving part 13 is a slope 24. During the process of the door 20 closing the take-out opening 11, the protrusion 22 enters the receiving part 13, and the distance between the protrusion 22 and the inner wall of the receiving part 13 will gradually decrease, so as to reduce the gap between the protrusion 22 and the receiving part 13 and reduce the possibility of magnetic leakage.

[0062] Since the end face of the protrusion 22 facing the inner wall of the receiving part 13 is a slope 24, after the door 20 closes the opening 11, the slope 24 of the protrusion 22 can come into contact with the inner wall of the receiving part 22. The slope 24 and the inner wall of the receiving part 13 form a line contact, which can generate a larger unit area pressing force than a planar contact, enhances the sealing effect, further reduces the gap between the protrusion 22 and the receiving part 13, and reduces the possibility of magnetic leakage.

[0063] Combination Figure 3 and Figure 5In some embodiments, when a second groove 23 is provided in the protrusion 22, the second groove 23 is provided on the inclined surface 24.

[0064] In some embodiments, the protrusion 22 may be made of an elastic material. After the protrusion 22 enters the receiving portion 13, the inclined surface 24 may undergo slight elastic deformation to automatically fill the processing errors or unevenness of the inner wall of the receiving portion 13, thereby improving the sealing reliability.

[0065] In some embodiments, the inclined surface 24 can act as a guide during the process of the protrusion 22 entering the receiving portion 13, reducing assembly difficulty and avoiding jamming or misalignment.

[0066] In some embodiments, to further ensure a sealing effect, the distance between the inclined surface 24 and the receiving portion 13 gradually increases along the direction from the loading / unloading port 11 to the receiving portion 13, forming a wedge-shaped sealing structure. During assembly, the contact area between the inclined surface 24 and the inner wall of the receiving portion 13 gradually increases, and the clamping force is linearly enhanced, achieving a progressive seal and significantly improving the uniformity and reliability of the seal. Moreover, during the process of the door 20 closing the loading / unloading port 11, the distance gradient between the inclined surface 24 and the inner wall of the receiving portion 13 can act as a guide, guiding the protrusion 22 smoothly into the receiving portion 13, reducing the risk of jamming or misalignment.

[0067] Figure 8 This is a schematic diagram of the support portion of a radio frequency defrosting device according to some embodiments. (In conjunction with...) Figure 8 In some embodiments, to further ensure the sealing effect, the housing 10 also includes a support portion 14 connected to the receiving portion 13. The support portion 14 has a third groove 15, and the protrusion 22 is embedded in the third groove 15. The cross-sectional shape of the support portion 14 can be L-shaped.

[0068] After the door 20 closes the opening 11, the protrusion 22 is embedded in the third groove 15. Therefore, the fitting design of the protrusion 22 and the third groove 15 makes the contact surface between the protrusion 22 and the inner wall of the third groove 15 form a "line-to-surface" or "surface-to-surface" seal, eliminating the small gaps of traditional planar contact, ensuring the sealing effect, reducing the possibility of magnetic leakage, and forming a "maze-like" sealing path, which extends the electromagnetic penetration path, achieves physical isolation, ensures the sealing effect, further reduces the possibility of magnetic leakage, and avoids energy waste.

[0069] In some embodiments, when the protrusion 22 is embedded in the third groove 15, the second shield 40 is partially located within the third groove 15. The fitting design of the protrusion 22 and the third groove 15 and the second shield 40 form a double-layer sealing structure, which ensures the sealing effect, reduces the possibility of magnetic leakage, and avoids energy waste.

[0070] Combination Figure 8 In some embodiments, to further ensure a sealing effect, the radio frequency defrosting device further includes a third shielding member 50. The third shielding member 50 is located between the support portion 14 and the protrusion 22, and is disposed within the third groove 15. The third shielding member 50 and the second shielding member 40 are located on opposite sides of the protrusion 22, respectively.

[0071] When the door 20 closes the loading / unloading port 11, the protrusion 22 is located inside the receiving portion 13, and the third shielding member 50 is located between the support portion 14 and the protrusion 22. This can seal the gap between the support portion 14 and the protrusion 22, thereby avoiding the occurrence of gaps between the door 20 and the box 10 to a certain extent, which could lead to magnetic leakage. This ensures the sealing effect, improves the shielding effect of the radio frequency defrosting device, and avoids energy waste.

[0072] In some embodiments, when the protrusion 22 is embedded in the third groove 15, the third shield 50 is located between the support 14 and the protrusion 22. The fitting design of the protrusion 22 and the third groove 15 and the third shield 50 form a double-layer sealing structure, which ensures the sealing effect, reduces the possibility of magnetic leakage, and avoids energy waste.

[0073] In some embodiments, the third shielding element 50 can be conductive silicone, which is flexible and deformable, thereby increasing the product's elasticity through shape changes and thus enhancing the sealing effect. Of course, in other embodiments, the third shielding element 50 can be a beryllium copper sheet.

[0074] Combination Figure 8 In some embodiments, in order to ensure the stability of the door 20 when closing the opening 11, the receiving part 13 extends in a direction away from the opening 11 and is provided with a limiting member 16, and the protrusion 22 is provided with a limiting groove 25, and the limiting member 16 is provided in the limiting groove 25.

[0075] During the process of closing the opening 11 of the door 20, the limiting member 16 is located in the limiting groove 25. The limiting member 16 can be limited by the inner wall of the limiting groove 25 to ensure that the door 20 is accurately aligned with the box 10 when it is closed, to prevent the door 20 from shifting or misaligning during the closing process, to ensure the precise docking of the door 20 and the box 10, to prevent the door 20 from shifting or shaking during the closing process, and to ensure the tight connection between the door 20 and the box 10.

[0076] In some embodiments, the first groove 12 is provided on the box body 10, the protrusion 21 is provided on the door body 20, the limiting member 16 is located on one side of the groove wall of the first groove 12, and the protrusion 21 is one side of the groove wall of the limiting groove 16, so as to form a continuous structure, so that the limiting member 16 can be embedded in the limiting groove 25, and the protrusion 21 can also be embedded in the first groove 12.

[0077] Based on the same inventive concept, this application also proposes a refrigerator that employs the aforementioned radio frequency defrosting device. The specific structure of this radio frequency defrosting device is as described in the above embodiments. Since it employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0078] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 limitations on this application.

[0079] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0080] 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.

[0081] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0082] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A radio frequency thawing device, characterized in that, include: The box has an opening for taking things out and putting them in; The door is movably connected to the box to open and close the loading / unloading port; A first shielding element is disposed between the housing and the door to seal the opening for taking out and putting in the container; The box body and the door body each have a protrusion and a first groove. The protrusion is embedded in the first groove, and the first shielding member is located between the protrusion and the first groove.

2. The radio frequency defrosting device according to claim 1, characterized in that, The first shielding component is fixed to the bottom wall of the first groove, and the protrusion abuts against the first shielding component.

3. The radio frequency defrosting device according to claim 1, characterized in that, The door includes a protrusion, and the housing has a receiving portion. When the door is closed and the opening is removed, the protrusion is located within the receiving portion. The radio frequency defrosting device further includes: The second shielding element is located between the protrusion and the receiving portion.

4. The radio frequency defrosting device according to claim 3, characterized in that, One of the protrusion and the receiving portion has a second groove, and the second shield is disposed in the second groove.

5. The radio frequency defrosting device according to claim 3, characterized in that, The end face of the protrusion facing the inner wall of the receiving part is an inclined surface.

6. The radio frequency defrosting device according to claim 5, characterized in that, Along the direction from the pick-up / place-out opening to the receiving portion, the distance between the inclined surface and the receiving portion gradually increases.

7. The radio frequency defrosting device according to claim 3, characterized in that, The housing also includes a support portion connected to the inner side of the receiving portion, the support portion having a third groove, and the protrusion being embedded in the third groove.

8. The radio frequency defrosting device according to claim 7, characterized in that, The radio frequency defrosting device further includes: The third shielding element is located between the support portion and the protrusion portion, and is disposed within the third groove.

9. The radio frequency defrosting device according to claim 3, characterized in that, The receiving portion extends away from the pick-up and put-out opening and is provided with a limiting member. The protrusion is provided with a limiting groove and the limiting member is disposed in the limiting groove.

10. The radio frequency defrosting device according to claim 9, characterized in that, The first groove is provided on the box body, the protrusion is provided on the door body, the limiting member is one side wall of the first groove, and the protrusion is one side wall of the limiting groove.

11. A refrigerator, characterized in that, Includes the radio frequency defrosting device as described in any one of claims 1-10.

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