A radio frequency thawing device and a refrigeration appliance

Abstract

The radio frequency thawing device provided by the embodiment of the present application comprises a box body, a mouth frame, a drawer assembly and a shielding assembly. The box body has a taking and placing opening, and the mouth frame is installed on the taking and placing opening. The drawer assembly comprises a drawer main body and a door body connected with the drawer main body. The drawer main body can slide into or slide out of the taking and placing opening, so that the door body opens or closes the taking and placing opening. The shielding assembly is installed on the door body and / or the mouth frame. In the case that the door body closes the taking and placing opening, the shielding assembly is arranged between the door body and the mouth frame, so that the box body and the door body are elastically sealed and conductively connected.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, and in particular relates to a radio frequency defrosting device and a refrigeration equipment. Background Technology

[0002] Microwave heating technology is widely used in the home appliance industry, with microwave ovens being the most typical example. The most commonly used frequency for microwave ovens is 2.45 GHz, which is an engineering, science, and medical exemption frequency and does not have requirements for EMC (Electromagnetic Compatibility) radiated interference. However, if other non-exempt frequency bands are used as the main power, it poses a great challenge to suppress EMC radiation.

[0003] To address EMC issues, common microwave shielding methods primarily utilize metal enclosures. However, shielding against radiation leakage at the door seams of sheet metal enclosures presents a significant challenge for EMC design. While choke structures can reduce microwave signal leakage at door seams in microwave ovens, their effectiveness is limited for signals at 300MHz and lower frequencies due to their wavelength dependence. Therefore, alternative suitable solutions are needed to effectively reduce EMC radiation leakage at door seams. Utility Model Content

[0004] This application aims to at least partially solve the technical problem of difficulty in reducing microwave leakage at door seams in related technologies. To this end, this application provides a radio frequency defrosting device and a cooling equipment.

[0005] In a first aspect, embodiments of this application provide a radio frequency defrosting device, comprising:

[0006] The box has an opening for taking out and putting in items;

[0007] The frame is installed at the pick-and-place port;

[0008] A drawer assembly includes a drawer body and a door connected to the drawer body, wherein the drawer body is capable of sliding in or out of the access opening to allow the door to open or close the access opening;

[0009] A shielding assembly is installed on the door and / or the opening frame. When the door closes the opening, the shielding assembly is positioned between the door and the opening frame to create a sealed and electrically conductive connection between the housing and the door.

[0010] In the radio frequency defrosting device provided in this application embodiment, when the door is closed and the loading / unloading port is open, the shielding component is disposed between the door and the frame to make the box and the door elastically sealed and electrically connected. That is, the shielding component elastically seals the door gap between the box and the door to reduce the gap at the door gap, and the shielding component electrically connects the box and the door to ensure the electrical continuity at the door gap, thereby playing a role in shielding electromagnetic waves. Thus, the setting of the shielding component can greatly reduce radiation leakage at the door gap and improve electromagnetic compatibility.

[0011] In some embodiments, the shielding assembly is installed on the door.

[0012] In some embodiments, the door body is provided with a flange on its periphery; the shielding assembly includes a plurality of shielding members, which are disposed on different sides of the door body, and each shielding member is fixedly snapped into the flange on the same side.

[0013] In some embodiments, the shielding member has a shielding portion that protrudes from the flange and contacts the frame.

[0014] In some embodiments, the shielding part is one of conductive foam strips, conductive adhesive strips, and beryllium copper spring sheets.

[0015] In some embodiments, the door body and the frame are magnetically connected.

[0016] In some embodiments, a first magnetic element is provided on the side of the opening frame away from the door body, and a second magnetic element is provided on the side of the door body away from the opening frame, wherein the first magnetic element and the second magnetic element are magnetically connected.

[0017] In some embodiments, the door body includes a door panel and a panel, the door panel being connected to the drawer body, the side of the door panel facing away from the frame having a receiving groove, the panel sealing the receiving groove, and the second magnetic element being disposed within the receiving groove.

[0018] In some embodiments, the frame has an assembly opening that mates with the loading / unloading opening, and the assembly opening has folded edges around its perimeter on the side away from the door body, the folded edges being connected to the housing body.

[0019] In some embodiments, the radio frequency defrosting device further includes a guide rail assembly installed in the housing and a guide rail connector installed in the drawer body, the guide rail assembly and the guide rail connector being slidably engaged, and the guide rail assembly being able to provide the drawer body with a restoring force for closing the door.

[0020] Secondly, embodiments of this application provide a refrigeration device, including a cabinet and the aforementioned radio frequency defrosting device, wherein the radio frequency defrosting device is disposed within the cabinet.

[0021] The beneficial effects of the refrigeration equipment provided in the second aspect are the same as those of the radio frequency defrosting device provided in the first aspect, and will not be repeated here. Attached Figure Description

[0022] 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.

[0023] Figure 1 A block diagram of the radio frequency defrosting device is shown.

[0024] Figure 2 A schematic diagram of the radio frequency defrosting device is shown.

[0025] Figure 3 It shows Figure 2 Exploded view.

[0026] Figure 4 It shows Figure 2 A partial structural diagram of the middle box.

[0027] Figure 5 It shows Figure 2 Assembly diagram of the middle drawer assembly and the shielding assembly.

[0028] Figure 6 It shows Figure 5 A partial structural diagram of the central gate.

[0029] Figure 7 It shows Figure 5 Schematic diagram of a partial structure of the middle shielding component Figure 1 .

[0030] Figure 8 It shows Figure 5 Schematic diagram of a partial structure of the middle shielding component Figure 2 .

[0031] Figure 9 It shows Figure 5 Schematic diagram of a partial structure of the middle shielding component Figure 3 .

[0032] Figure 10 It shows Figure 3 A schematic diagram of the structure of the central frame.

[0033] Figure 11 It shows Figure 3 A structural schematic diagram of the central frame from another perspective.

[0034] Figure 12 It shows Figure 3 A partial assembly diagram of the central frame and the housing.

[0035] Figure 13 It shows Figure 2 A partial schematic diagram of the middle drawer assembly.

[0036] Figure 14 It shows Figure 2 A schematic diagram of the middle box structure.

[0037] Figure label:

[0038] 10-RF defrosting device, 15-Tuning board, 16-Electrode plate, 17-Tuning inductor, 19-RF generator assembly, 19a-Power supply module, 19b-Control module, 19c-Power amplifier module, 19d-Detector circuit, 19e-Power amplifier circuit, 19f-Signal source, 100-Enclosure, 110-Inlet / outlet, 120-Defrosting chamber, 130-Tuning chamber, 200-Frame, 210-First magnetic component, 22 0-Assembly opening, 221-Folded edge, 300-Drawer assembly, 310-Drawer body, 320-Door body, 321-Flanged edge, 321a-Slot, 322-Second magnetic component, 323-Door panel, 323a-Receiving slot, 324-Panel, 400-Shielding assembly, 410-Shielding component, 411-Shielding part, 412-Snap-fit ​​part, 500-Guide rail assembly, 510-Guide rail connector, 600-Mounting cover. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Please see Figure 1 The radio frequency defrosting device 10 is installed inside the refrigeration equipment to rapidly defrost frozen food within the equipment, thereby meeting the multifunctional needs of the refrigeration equipment. For example... Figure 1 As shown, the radio frequency defrosting device 10 includes a radio frequency generation component 19. The radio frequency generation component 19 includes a power supply module 19a, a power amplifier module 19c, and a control module 19b. The power supply module 19a, the power amplifier module 19c, and the control module 19b are all electrically connected. The power supply module 19a supplies power to the power amplifier module 19c and the control module 19b. The power amplifier module 19c generates an initial signal at a set frequency. The control module 19b controls the operation of the circuits in the power supply module 19a and the power amplifier module 19c. When it is necessary to adjust the output power of the power amplifier module 19c, the control module 19b calculates a voltage regulation control command based on an internal algorithm and sends it to the power supply module 19a. The power supply module 19a then adjusts the voltage to change its output voltage.

[0044] The power amplifier module 19c includes a signal source 19f, a power amplifier circuit 19e, and a detector circuit 19d. The signal source 19f is used to generate an initial signal at a set frequency (40.68MHz). The power amplifier circuit 19e is used to amplify the power of the initial signal, enhance its power, and output the power amplifier signal. The detector circuit 19d is used to detect the output power of the power amplifier signal and the reflected power, and feeds it back to the control module 19b.

[0045] The radio frequency generating assembly 19 also includes a tuning board 15, a tuning inductor 17, and an electrode 16. The tuning inductor 17 and the electrode 16 are electrically connected, and the tuning board 15 is electrically connected to the power amplifier module 19c. After receiving the power amplifier signal, the electrode 16 radiates radio frequency energy to the food to quickly defrost it.

[0046] Specifically, the signal source output module is the source of the radio frequency (RF) signal, capable of outputting a fixed-frequency RF signal. This RF signal is amplified stage by a power amplifier before being output to the load (i.e., the food placed inside the drawer assembly). The RF generation component 19 can detect the RF signal at the load end in real time, detecting the output power and reflected power of the power amplifier signal and feeding this information back to the control module 19b. The control module 19b controls the tuning board 15 and the tuning inductor 17 based on the detection results, working together to achieve optimal impedance matching, maximizing power output to the load, and effectively reducing power reflection in the system.

[0047] Of course, the RF signal output terminal of the RF generator assembly 19 can also be directly connected to the electrode plate 16 via a coaxial cable. Impedance matching and stable power transmission are achieved by adjusting the output frequency through the real-time detection and control module 19b of the RF generator assembly 19. That is, the control module 19b adjusts the output frequency based on the detection results to achieve optimal impedance matching, ensuring that power is output to the load as much as possible, preventing power reflection in the system, and guaranteeing stable RF power transmission. In related technologies, commonly used microwave shielding methods mainly utilize metal enclosures. However, shielding against radiation leakage at the door seams of sheet metal enclosures has become the biggest challenge in EMC design. For microwave ovens, microwave signal leakage at the door seams can be reduced by designing a choke structure. However, since the choke structure is related to the signal wavelength, it is difficult to reduce microwave leakage by designing a choke scheme for signals at 300MHz or even lower frequencies. Therefore, other suitable solutions need to be designed to effectively reduce EMC radiation leakage at the door seams.

[0048] In order to improve the problems existing in the related technologies to a certain extent, this application provides a radio frequency defrosting device and a refrigeration equipment, which can greatly reduce radiation leakage at door gaps and improve electromagnetic compatibility.

[0049] This application is described below with reference to the accompanying drawings and specific embodiments:

[0050] Please see Figure 2 This application provides a radio frequency defrosting device 10, which is applied to refrigeration equipment. The radio frequency defrosting device 10 provided in this application can greatly reduce radiation leakage at door seams and improve electromagnetic compatibility.

[0051] Please see Figures 2-5In this embodiment, the radio frequency defrosting device 10 includes a housing 100, a frame 200, a drawer assembly 300, and a shielding assembly 400. The housing 100 has a loading / unloading opening 110, and the frame 200 is mounted on the loading / unloading opening 110. The drawer assembly 300 includes a drawer body 310 and a door 320 connected to the drawer body 310. The drawer body 310 can slide in or out of the loading / unloading opening 110, allowing the door 320 to open or close the loading / unloading opening 110. The shielding assembly 400 is mounted on the door 320 and / or the frame 200. When the door 320 closes the loading / unloading opening 110, the shielding assembly 400 is disposed between the door 320 and the frame 200, ensuring a sealed and conductive connection between the housing 100 and the door 320.

[0052] The housing 100 is the basic component of the radio frequency defrosting device 10 of this application. The housing 100 can provide a mounting base for at least some other components of the radio frequency defrosting device 10, and can also protect at least some other components of the radio frequency defrosting device 10. The housing 100 has a defrosting chamber 120 and a tuning chamber 130 that are independent of each other. The access port 110 is connected to the defrosting chamber 120, the drawer body 310 is slidably engaged with the defrosting chamber 120, and the electrode plate 16 is disposed in the tuning chamber 130. The radio frequency defrosting device 10 also includes a mounting cover 600, which is mounted on the housing 100 and is disposed opposite to the access port 110. The power amplifier module 19c is mounted in the mounting cover 600.

[0053] The drawer body 310 is used to hold items to be thawed. The drawer body 310 slides into the defrosting chamber 120 through the take-out opening 110, and the door 320 closes the take-out opening 110. At this time, the electrode plate 16 can radiate radio frequency energy into the defrosting chamber 120 to defrost the items in the drawer body 310. The drawer body 310 slides out of the defrosting chamber 120 through the take-out opening 110, and the door 320 opens the take-out opening 110 so that the user can take out the items in the drawer body 310.

[0054] The opening frame 200 is connected to the housing 100 and positioned around the access opening 110. The opening frame 200 is used to cooperate with the door 320. When the door 320 closes the access opening 110, the gap between the door 320 and the opening frame 200 is the door gap. The shielding component 400 can be installed on either the door 320 or the opening frame 200. That is, the shielding component 400 can be installed on the side of the door 320 facing the opening frame 200, or on the side of the opening frame 200 facing the door 320. The shielding component 400 can also be installed on both the door 320 and the opening frame 200; there are no restrictions on this. When the door 320 closes the access opening 110, the shielding component 400 is positioned between the door 320 and the opening frame 200.

[0055] With the door 320 closed and the access port 110 closed, the electrode plate 16 can radiate radio frequency energy into the defrosting chamber 120 to defrost the items in the drawer body 310. Since the shielding component 400 can seal the cabinet 100 and the door 320, it can eliminate gaps at the door seam as much as possible. The shielding component 400 is electrically connected to the cabinet 100 and the door 320, that is, at least part of the shielding component 400 is made of conductive material, which can ensure electrical continuity at the door seam, so that a complete and continuous electrical shielding layer is formed between the door 320 and the cabinet 100, which plays a role in shielding electromagnetic waves. Therefore, the setting of the shielding component 400 can greatly reduce radiation leakage at the door seam and improve electromagnetic compatibility.

[0056] At least a portion of the shielding component 400 may be made of an elastic material, thereby enabling the shielding component 400 to elastically seal the gap between the housing 100 and the door 320. Furthermore, because at least a portion of the shielding component 400 is made of an elastic material, the shielding component 400 also acts as a buffer when the door 320 closes the access opening 110, minimizing the risk of the door 320 impacting the frame 200 and causing damage to the frame 200.

[0057] Please see Figure 5 In some embodiments, the shielding component 400 is installed on the door body 320.

[0058] Because the door 320 is larger and stronger than the frame 200, the shielding assembly 400 is installed on the door 320, making its installation more stable. The shielding assembly 400 is located on the side of the door 320 facing the frame 200. When the door 320 closes the access port 110, the shielding assembly 400 can provide an elastic seal and conductive connection between the housing 100 and the door 320.

[0059] Of course, in other embodiments, the shielding component 400 may also be installed on the frame 200, and there is no limitation thereto.

[0060] Please see Figure 6 and Figure 7 In some embodiments, the door body 320 is provided with a flange 321 on its periphery; the shielding assembly 400 includes a plurality of shielding members 410, which are disposed on different sides of the door body 320, and each shielding member 410 is fixedly snapped into the flange 321 on the same side.

[0061] The door body 320 and the frame 200 are both roughly rectangular. Each of the four sides of the door body 320 has a flange 321, with the flange 321 located on the side of the door body 320 facing the frame 200. A groove 321a is formed between the flange 321 and the door body 320, with the opening of the groove 321a facing the center of the door body 320. The shielding assembly 400 may include four shielding members 410, which are distributed along the four sides of the door body 320. Each shielding member 410 is fixedly engaged in the groove 321a on the same side, thus achieving a fixed installation of the entire shielding assembly 400 on the door body 320. Adjacent shielding members 410 can be arranged close together to ensure that every part of the perimeter of the door body 320 can be elastically sealed with the frame 200, thereby improving the shielding effect against radiation.

[0062] In some embodiments, the shield 410 has a shield 411 with a protruding flange 321, and the shield 411 contacts the frame 200.

[0063] The shielding part 411 and the frame 200 can make elastic contact. Since the shielding member 410 needs to be fixedly snapped into the flange 321, in order to ensure that the shielding member 410 can make sufficient elastic contact with the frame 200, the shielding member 410 has a shielding part 411 protruding from the flange 321, through which it makes elastic contact with the frame 200. Because the shielding part 411 protrudes from the flange 321, it is not restricted by the flange 321 when it contacts the frame 200. Of course, since the shielding part 411 directly contacts the frame 200, it must be made of an elastic conductive material.

[0064] Specifically, the shielding component 410 also has a latching portion 412 that engages with the flange 321. The latching portion 412 and the shielding portion 411 can be integrally formed. When the latching portion 412 is fixedly latched inside the flange 321, the shielding portion 411 is located outside the flange 321 and protrudes from the flange 321. Since the latching portion 412 is only used for fixed engagement with the door body 320, the latching portion 412 can be made of the same elastic conductive material as the shielding component 410, or it can be made of any other material without limitation.

[0065] Please see Figures 7-9 In some embodiments, the shielding part 411 is one of conductive foam strip, conductive adhesive strip, and beryllium copper spring.

[0066] Conductive foam strips, conductive adhesive strips, and beryllium copper springs are all elastic conductive materials; any one of them can be chosen as the material for the shielding part 411, and there are no restrictions. To facilitate the manufacturing of the shielding component 410, the snap-fit ​​part 412 and the shielding part 411 can be directly machined onto a single material. Please refer to [reference needed]. Figure 8When a conductive rubber strip is selected as the material for the shielding part 411, since the conductive rubber strip is thin and bendable, the conductive rubber strip can be bent directly, with one end extending to the other end. The extended part can serve as the snap-fit ​​part 412, and the remaining part serves as the shielding part 411.

[0067] In some implementations, the door 320 and the frame 200 are magnetically connected.

[0068] With the door 320 closed at the access opening 110, within a reasonable range, the smaller the gap in the door seam, the greater the compression of the shielding component 400, resulting in a better sealing effect and better ensuring electrical continuity, thus meeting the radiation suppression conditions. Therefore, the door 320 and the frame 200 are magnetically connected, so that when the drawer body 310 slides into the defrosting chamber 120, the magnetic force allows the door 320 to move as close as possible to the frame 200, thereby reducing the gap in the door seam and improving the shielding effect.

[0069] Please see Figure 10 and Figure 13 In some embodiments, a first magnetic element 210 is provided on the side of the frame 200 away from the door body 320, and a second magnetic element 322 is provided on the side of the door body 320 away from the frame 200, and the first magnetic element 210 and the second magnetic element 322 are magnetically connected.

[0070] It is understandable that the first magnetic element 210 and the second magnetic element 322 have opposite magnetic properties. The first magnetic element 210 is disposed on the frame 200, and the second magnetic element 322 is disposed on the door body 320. Thus, under the magnetic attraction of the first magnetic element 210 and the second magnetic element 322, the door body 320 moves as far as possible toward the frame 200, thereby reducing the gap in the door.

[0071] The first magnetic element 210 is disposed on the side of the frame 200 away from the door body 320, and the second magnetic element 322 is disposed on the side of the door body 320 away from the frame 200. This ensures the flatness of the surfaces of the frame 200 and the door body 320 that are in contact with each other, and avoids interference between the first magnetic element 210 and the second magnetic element 322 on the connection between the frame 200 and the door body 320, which would lead to an increase in the door gap.

[0072] It should be noted that both the frame 200 and the door 320 are metal parts. The first magnetic component 210 is directly attached to the frame 200, and the second magnetic component 322 is directly attached to the door 320. Of course, in order to ensure the uniformity of the magnetic force, multiple first magnetic components 210 and multiple second magnetic components 322 are provided, with multiple first magnetic components 210 arranged around the frame 200 and multiple second magnetic components 322 arranged around the door 320.

[0073] Please see Figure 5 and Figure 13 In some embodiments, the door body 320 includes a door panel 323 and a panel 324. The door panel 323 is connected to the drawer body 310. The side of the door panel 323 facing away from the frame 200 is provided with a receiving groove 323a. The panel 324 seals the receiving groove 323a. The second magnetic element 322 is disposed in the receiving groove 323a.

[0074] Since the door panel 323 is connected to the drawer body 310, the door panel 323 cooperates with the frame 200. The flange 321 is set on the door panel 323, the shielding component 400 is installed on the side of the door panel 323 facing the frame 200, and the panel 324 is set on the side of the door panel 323 away from the frame 200.

[0075] During the process of opening or closing the access port 110, the user needs to frequently touch the door 320. If the second magnetic component 322 is directly disposed on the outer surface of the door 320, it is easy for the second magnetic component 322 to be damaged or fall off. In this embodiment, since the second magnetic component 322 is disposed in the receiving groove 323a, and the panel 324 seals the receiving groove 323a, that is, the second magnetic component 322 is installed inside the door 320 and will not be exposed outside the door 320, thereby protecting the second magnetic component 322, preventing the second magnetic component 322 from falling off, and improving the aesthetics of the door 320.

[0076] Please see Figure 2 and Figure 3 In some embodiments, the housing 100 is generally rectangular and has six sides: top, bottom, left, right, front, and back. The top, bottom, left, and right sides of the housing 100 are an integral structure, made of a single piece of metal plate through stamping, bending, and welding. The loading and unloading port 110 is located at the front. The back plate of the housing 100 is opposite to the loading and unloading port 110. The back plate is a single piece of metal plate made of stainless steel. The back plate is connected to the top, bottom, left, and right sides of the housing 100 by welding. The welding seams are continuous welds to reduce radiation leakage caused by the welding seams.

[0077] Please see Figures 10-12 In some embodiments, the frame 200 has an assembly opening 220 that mates with the take-up opening 110. The assembly opening 220 has folded edges 221 around its perimeter, which are connected to the housing 100.

[0078] The frame 200 is also a one-piece structure with a sheet metal thickness greater than 1mm and features flanges to ensure its strength. Furthermore, the frame 200 is formed through a single stamping process, maximizing the flatness of the contact surface between the frame 200 and the door body 320. Similarly, the door panel 323 also employs a one-piece stamping structure to ensure surface flatness at its contact points with the frame 200.

[0079] The frame 200 has an assembly opening 220 that mates with the access opening 110. This can be understood as the housing 100 passing through the assembly opening 220 of the frame 200, with the frame 200 located around the access opening 110. The assembly opening 220 has folded edges 221 around its perimeter. These folded edges 221 increase the connection area between the frame 200 and the housing 100, ensuring a tighter connection and reducing magnetic leakage. For ease of description, the side of the frame 200 facing the door 320 is defined as the front, and the side away from the door 320 is defined as the back. The front of the frame 200 contacts the shielding assembly 400, and the folded edges 221 are located on the back of the frame 200.

[0080] The folded edge 221 can be welded to the housing 100, that is, the back of the opening frame 200 is welded to the housing 100. This minimizes the high-temperature deformation of the front of the opening frame 200 during the welding process, ensuring the flatness of the front and allowing the door 320 to be smoothly pressed against the opening frame 200 when the access opening 110 is closed. Furthermore, the weld between the folded edge 221 and the housing 100 can be located inside the housing 100 to ensure the aesthetics of the outer surface of the housing 100.

[0081] Please see Figure 5 and Figure 14 In some embodiments, the radio frequency defrosting device 10 further includes a guide rail assembly 500 installed in the housing 100 and a guide rail connector 510 installed in the drawer body 310. The guide rail assembly 500 and the guide rail connector 510 are slidably engaged, and the guide rail assembly 500 can provide the drawer body 310 with a restoring force for closing the door.

[0082] The guide rail assembly 500 and the guide rail connector 510 slide together to enable the drawer body 310 to slide in and out. Since the guide rail assembly 500 can provide the drawer body 310 with a restoring force for closing the door, when the door 320 closes the access opening 110, the guide rail assembly 500 can further move the door 320 towards the frame 200, thereby reducing the gap in the door and improving the shielding effect.

[0083] The guide rail assembly 500 that provides the drawer body 310 with a restoring force for closing is prior art. For reference, please refer to the drawer assembly 300 in the patent application number CN202211517907.6, which will not be described in detail here.

[0084] Based on the same inventive concept, this application also provides a refrigeration device, including a cabinet and the aforementioned radio frequency defrosting device 10. The radio frequency defrosting device 10 is disposed inside the cabinet, and the refrigeration device can be a refrigerator. The beneficial effects of the refrigeration device provided in this application are the same as those of the radio frequency defrosting device 10 described above, and will not be repeated here.

[0085] 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 the present invention. 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.

Claims

1. A radio frequency defrosting device, characterized in that, include: The housing (100) has an opening (110) for taking out and putting in. A frame (200) is installed in the pick-and-place port (110); A drawer assembly (300) includes a drawer body (310) and a door (320) connected to the drawer body (310), wherein the drawer body (310) is slid in or out of the access opening (110) to allow the door (320) to open or close the access opening (110). A shielding assembly (400) is installed on the door (320) and / or the opening frame (200). When the door (320) closes the access port (110), the shielding assembly (400) is disposed between the door (320) and the opening frame (200) to make the enclosure (100) and the door (320) sealed and electrically connected.

2. The radio frequency defrosting device according to claim 1, characterized in that, The shielding component (400) is installed on the door body (320).

3. The radio frequency defrosting device according to claim 2, characterized in that, The door body (320) has a flange (321) on its periphery; the shielding assembly (400) includes a plurality of shielding components (410), which are disposed on different sides of the door body (320), and each shielding component (410) is fixedly snapped into the flange (321) on the same side.

4. The radio frequency defrosting device according to claim 3, characterized in that, The shield (410) has a shielding portion (411) that protrudes from the flange (321) and contacts the frame (200).

5. The radio frequency defrosting device according to claim 4, characterized in that, The shielding part (411) is one of conductive foam strip, conductive adhesive strip and beryllium copper spring.

6. The radio frequency defrosting device according to any one of claims 1-5, characterized in that, The door body (320) and the frame (200) are magnetically connected.

7. The radio frequency defrosting device according to claim 6, characterized in that, A first magnetic element (210) is provided on the side of the frame (200) away from the door body (320), and a second magnetic element (322) is provided on the side of the door body (320) away from the frame (200). The first magnetic element (210) and the second magnetic element (322) are magnetically connected.

8. The radio frequency defrosting device according to claim 7, characterized in that, The door body (320) includes a door panel (323) and a panel (324). The door panel (323) is connected to the drawer body (310). The door panel (323) has a receiving groove (323a) on the side facing away from the frame (200). The panel (324) seals the receiving groove (323a). The second magnetic element (322) is disposed in the receiving groove (323a).

9. The radio frequency defrosting apparatus according to any one of claims 1-5, characterized in that, The frame (200) has an assembly opening (220) that mates with the take-up opening (110). The assembly opening (220) has a flange (221) around the side away from the door body (320), and the flange (221) is connected to the box body (100).

10. The radio frequency defrosting apparatus according to any one of claims 1-5, characterized in that, The radio frequency defrosting device also includes a guide rail assembly (500) installed in the housing (100) and a guide rail connector (510) installed on the drawer body (310). The guide rail assembly (500) and the guide rail connector (510) are slidably engaged, and the guide rail assembly (500) can provide the drawer body (310) with a restoring force for closing the door.

11. A refrigeration device, characterized in that, It includes a cabinet and a radio frequency defrosting device (10) as described in any one of claims 1-10, wherein the radio frequency defrosting device (10) is disposed within the cabinet.

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