A radio frequency thawing device and a refrigerator

Abstract

The present application discloses a radio frequency thawing device and a refrigerator, belonging to the technical field of electrical appliances, to solve the technical problems of inability to fully utilize the internal space of the box body and poor adaptability. The radio frequency thawing device includes a box body assembly having a tuning cavity and a thawing cavity, and the thawing cavity is used for accommodating food; a tuning plate installed in the tuning cavity and electrically connected to the radio frequency generating assembly; a plate electrode detachably connected to the tuning plate and installed in the tuning cavity. The plate electrode is used for radiating radio frequency energy to the thawing cavity under the control of the radio frequency generating assembly to thaw the food in the thawing cavity. When the plate electrode is in different position states, the ratio of the divided thawing cavity to the tuning cavity is different, that is, the volume of the formed thawing cavity is different. When the volume of the food to be heated is different, different volumes of thawing cavities are formed by adjusting the position of the plate electrode, so as to effectively utilize the volume within the entire shielding member, and effectively improve the space utilization rate and applicability.

Description

Technical Field

[0001] This application belongs to the technical field of electrical appliances, and particularly relates to a radio frequency thawing device and a refrigerator. Background Art

[0002] Radio frequency thawing technology can penetrate food through low-frequency electromagnetic waves, enabling the object to be thawed to thaw evenly and quickly. Refrigerators equipped with radio frequency thawing devices applying radio frequency thawing technology are widely welcomed by consumers. In a refrigerator, the radio frequency thawing device generally has a separate box body for placing the food to be heated.

[0003] The box body is generally divided into two cavities, one for accommodating food and the other for accommodating electronic devices. In the related art, when the volume of the food to be heated is small, due to the relatively large space for accommodating food, the absorption efficiency of radio frequency energy is low, and large-sized food cannot be put in. Therefore, the internal space of the box body cannot be fully utilized and the adaptability is poor. Summary of the Invention

[0004] This application aims to at least solve to some extent the technical problems of being unable to fully utilize the internal space of the box body and having poor adaptability. For this purpose, this application provides a radio frequency thawing device and a refrigerator.

[0005] In a first aspect, an embodiment of this application provides a radio frequency thawing device, including:

[0006] A box body assembly having a tuning cavity and a thawing cavity, where the thawing cavity is used to accommodate food;

[0007] A tuning plate installed in the tuning cavity and electrically connected to a radio frequency generating component;

[0008] A plate electrode detachably connected to the tuning plate and installed in the tuning cavity. The plate electrode is used to radiate radio frequency energy to the thawing cavity under the control of the radio frequency generating component to thaw the food in the thawing cavity.

[0009] When the plate electrode is in different position states, the ratio of the divided thawing cavity to the tuning cavity is different, that is, the volume of the formed thawing cavity is different. When the volume of the food to be heated is different, different volumes of thawing cavities are formed by adjusting the position of the plate electrode, thereby effectively utilizing the volume inside the entire shielding member and effectively improving the space utilization rate and applicability.

[0010] In some embodiments, the tuning plate is provided with a plug-in portion, and the plate electrode is plugged into the plug-in portion to be electrically connected to the tuning plate.

[0011] In some embodiments, the plug-in portion includes a fixed seat and a spring piece installed on the fixed seat. The plate electrode is plugged into the fixed seat and electrically connected to the spring piece.

[0012] After inserting the electrode plate, the electrode piece pushes open the elastic piece and makes the elastic piece fit with the electrode plate through the elastic force of the elastic piece, so as to achieve the effect of automatically electrically connecting the electrode plate and the tuning plate.

[0013] In some embodiments, there are two elastic pieces, the two elastic pieces are arranged oppositely, the electrode piece is inserted between the two elastic pieces and is electrically connected to at least one of the elastic pieces.

[0014] The clamping of the electrode plate is realized through at least two groups of elastic pieces, which effectively improves the electrical connection effect between the electrode piece and the elastic piece, and further improves the stability after the connection of the electrode plate.

[0015] In some embodiments, a fixing groove is provided on the fixing seat, and the elastic piece is arranged in the fixing groove.

[0016] By inserting the electrode piece into the fixing groove, the electrode piece pushes open the elastic piece and makes the elastic piece fit with the electrode piece through the elastic force of the elastic piece, so as to realize the automatic electrical connection between the electrode plate and the tuning plate while improving the stability of the contact.

[0017] In some embodiments, the box body assembly includes a shielding member and a partition portion. The partition portion divides the shielding member into the thawing cavity and the tuning cavity, and the electrode plate is fixedly connected to the partition portion.

[0018] In some embodiments, the partition portion is detachably connected to the shielding member.

[0019] In some embodiments, a supporting portion is provided on the inner wall of the shielding member, and the partition portion is detachably mounted on the supporting portion.

[0020] In some embodiments, a supporting portion is provided on the inner wall of the shielding member, and the partition portion is detachably mounted on the supporting portion.

[0021] In a second aspect, an embodiment of the present application provides a refrigerator, including the radio frequency thawing device provided in the first aspect:

[0022] The beneficial effects of the refrigerator provided in the second aspect are the same as those of the radio frequency thawing device provided in the first aspect, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1Shows the composition block diagram of the radio frequency thawing device in the present application;

[0025] Figure 2 Shows the structural schematic diagram of the box body assembly in an embodiment of the present application;

[0026] Figure 3 Shows the structural schematic diagram of the electrode plate in an embodiment of the present application;

[0027] Figure 4 Shows the structural schematic diagram of the electrode plate in another embodiment of the present application;

[0028] Figure 5 Shows the structural schematic diagram of the insertion part in an embodiment of the present application;

[0029] Figure 6 Shows the structural schematic diagram of the insertion part in another embodiment of the present application;

[0030] Figure 7 Shows the physical structure schematic diagram of the radio frequency thawing device in an embodiment of the present application.

[0031] Figure 8 Shows Figure 7 The physical structure schematic diagram inside the radio frequency thawing device in

[0032] Figure 9 Shows the structural schematic diagram of the partition part in an embodiment of the present application;

[0033] Figure 10 Shows Figure 9 The structural schematic diagram of the partition part when it is in a certain position state in

[0034] Figure 11 Shows Figure 9 The structural schematic diagram of the partition part when it is in another position state in

[0035] Figure 12 Shows the partial structure diagram of the refrigerator;

[0036] Figure 13 Shows the side sectional view of the refrigerator;

[0037] Figure 14 Shows Figure 13 The partial enlarged view at position A in

[0038] Reference numerals: 100, refrigerator; 10, radio frequency thawing device; 10a, cabinet assembly; 10b, shielding front frame; 116, shielding door; 122, panel; 123, shielding plate; 116a, shielding cavity; 117, access opening; 117a, first end; 117b, second end; 118, rotating member; 118a, first adapter portion; 118b, second adapter portion; 11, cylinder assembly; 111, shielding member; 11a, tuning cavity; 11b, thawing cavity; 112, support member; 115, adjusting member; 115a, mounting groove; 115b, support portion; 115c, abutting portion; 114, partition portion; 12, drawer assembly; 15, tuning plate; 155, plug-in portion; 1551, fixing seat; 1552, fixing groove; 1553, elastic piece; 156, fixing plate; 1561, antenna; 16, electrode plate; 166, electrode tab; 18, isolating member; 19, radio frequency generating assembly. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly. In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0041] The present application will be described below in conjunction with the accompanying drawings and with reference to specific embodiments:

[0042] The radio frequency thawing device 10 and the refrigerator 100 provided in the embodiments of the present application. The radio frequency thawing device 10 is arranged inside the refrigerator 100 to quickly thaw the frozen food in the refrigerator 100, so as to meet the multi-functional requirements of the refrigerator 100. As Figure 1 shown, the radio frequency thawing device 10 includes a radio frequency generating component 19 and a tuning module. The radio frequency generating 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 is used to supply power to the power amplifier module 19c and the control module 19b. The power amplifier module 19c is used to generate an initial signal with a set frequency. The control module 19b is used to control the circuits in the power supply module 19a and the power amplifier module 19c to work; when it is necessary to adjust the output power of the power amplifier module 19c, the control module 19b calculates a voltage regulation control instruction based on an internal algorithm and sends it to the power supply module 19a, and the power supply module 19a adjusts the voltage to change the output voltage of the power supply module 19a.

[0043] The power amplifier module 19c includes a signal source 19f, a power amplification circuit 19e, and a detection circuit 19d. The signal source 19f is used to generate an initial signal with a set frequency (40.68 MHz). The power amplification circuit 19e is used to amplify the power of the initial signal, enhance the power of the initial signal, and output a power amplifier signal; the detection circuit 19d is used to detect the output power of the power amplifier signal and the reflected power reflected back by the tuning module, and feedback it to the control module 19b.

[0044] The tuning module includes a tuning plate 15, a tuning inductor 17, and a plate 16. The tuning inductor 17 and the plate 16 are electrically connected and are electrically connected to the power amplifier module 19c through the tuning plate 15. After receiving the power amplifier signal, the tuning module radiates radio frequency energy to the food to quickly thaw the food.

[0045] An embodiment of the present application provides a radio frequency thawing device 10. Refer to Figure 2 , which includes a box body component 10a provided with a receiving cavity. The box body component 10a includes a shielding member 111. The shielding member 111 is a rectangular container made of a metal material. The receiving cavity is opened inside the shielding member 111. An opening communicating with the receiving cavity is provided on one side wall of the shielding member 111. A shielding door 116 for opening and closing the opening is provided on the shielding member 111. When the shielding door 116 closes the opening of the shielding member 111, the shielding member 111 and the shielding door 116 form a sealed receiving cavity.

[0046] Refer to Figure 3 and Figure 4, a plate 16 is arranged in the accommodation cavity. The plate 16 divides the accommodation cavity into two cavities. One side facing the emitting surface of the plate 16 is a thawing cavity 11b for accommodating the food to be heated, and the other side is a tuning cavity 11a for accommodating electrical components. When there is one plate 16, a capacitive space for the action of radio frequency energy is formed between the plate 16 and the shielding member 111. In addition, there can be two plates 16. One plate 16 is fixedly arranged in the box body assembly 10a, and the other plate 16 is detachably arranged. The emitting surfaces of the two plates 16 are arranged opposite to each other to form a capacitive space for the action of radio frequency energy; wherein, a tuning plate 15 for receiving and tuning signals is arranged in the tuning cavity 11a. One end of the tuning plate 15 is electrically connected to the plate 16, and the other end is electrically connected to the radio frequency generating assembly 19. When the tuning plate 15 receives a command, the tuning plate 15 controls the plate 16 to emit radio frequency energy, thereby heating the food located in the thawing cavity 11b.

[0047] The plate 16 is detachably connected to the tuning plate 15. The tuning plate 15 can be arranged on the side wall perpendicular to the sliding direction of the partition portion 114. The plate 16 is detachably connected to the tuning plate 15. Plug-in portions 155 for the plate 16 to be inserted are arranged at corresponding positions on the tuning plate 15 corresponding to different position states. When the position of the plate 16 changes, after the plate 16 moves to the corresponding position state, it is automatically electrically connected to the plug-in portion 155, so that the plate 16 is electrically connected to the tuning plate 15.

[0048] The plate 16 is detachably arranged in the shielding member 111. The plate 16 includes at least two different position states in the shielding member 111. When the plate 16 is in different position states, the ratio of the thawing cavity 11b and the tuning cavity 11a formed by the division is different, that is, the volume of the formed thawing cavity 11b is different. When the volume of the food to be heated is different, different volumes of the thawing cavity 11b are formed by adjusting the position of the plate 16, so as to effectively utilize the volume inside the entire shielding member 111, effectively improving the space utilization rate and applicability; when the plate 16 is not inserted, there is no device for emitting radio frequency energy in the radio frequency thawing device 10, so the radio frequency thawing device 10 cannot work, effectively avoiding the danger of radio frequency leakage caused by misoperation when the plate 16 is not placed, and improving the safety of the entire device.

[0049] The plate 16 is slidably arranged in the horizontal direction. When changing the position state of the plate 16, the plate 16 is drawn out in the horizontal direction and inserted from the position corresponding to another position state, and the change of the position state can be completed; in some embodiments, the plate 16 is arranged in the horizontal direction, and the positions of the plate 16 in at least two position states are offset in the height direction. The thawing chamber 11b can be located below the plate 16, so that the bottom wall of the shielding chamber 116a is used as the bottom plate for placing food, or the thawing chamber 11b can be arranged above the plate 16, so that the plate 16 is used as the bottom plate for placing food; the plate 16 can also be arranged in the vertical direction, and the positions of the plate 16 in at least two position states are offset in the horizontal direction, and the thawing chamber 11b is arranged on either side of the plate 16.

[0050] See Figure 5 and Figure 6 , in some embodiments, the plate 16 is provided with a pole piece 166 for plugging into the tuning plate 15. The plugging part 155 includes a fixing seat 1551 provided with a fixing groove 1552 for plugging the pole piece 166. An elastic shrapnel 1553 is arranged in the fixing groove 1552. After the plate 16 is adjusted to a certain position state, by inserting the pole piece 166 into the fixing groove 1552, the pole piece 166 pushes the shrapnel 1553 open and the shrapnel 1553 fits with the pole piece 166 through the elastic force of the shrapnel 1553, so as to realize the automatic electrical connection between the plate 16 and the tuning plate 15 and improve the contact stability at the same time; at least two shrapnel 1553 can be arranged, and at least two shrapnel 1553 are respectively arranged on opposite sides of the fixing groove 1552. When the pole piece 166 is inserted, the plate 16 is clamped by at least two groups of shrapnel 1553, further improving the stability of the plate 16 after connection.

[0051] In some embodiments, see Figure 7 and Figure 8 , the box body assembly 10a includes a cylinder body assembly 11 and a drawer assembly 12. The cylinder body assembly 11 has an independent tuning chamber 11a and a thawing chamber 11b. The support bracket 14, the tuning plate 15 and the plate 16 are arranged in the tuning chamber 11a. The drawer assembly 12 is slidably connected to the thawing chamber 11b and can slide into and out of the thawing chamber 11b. The drawer assembly 12 is used to hold food.

[0052] As a radio frequency signal shielding structure, the cylinder body assembly 11 can shield the radio frequency signals generated inside the radio frequency thawing device 10, avoid the radio frequency signals from diffusing to the outside of the radio frequency thawing device 10 and causing harm to the human body, and at the same time ensure the radio frequency thawing effect of the radio frequency thawing device 10.

[0053] An independent tuning cavity 11a and a thawing cavity 11b are formed inside the cylinder component 11. The tuning cavity 11a is used to arrange the support bracket 14, the tuning plate 15 and the electrode plate 16, and the thawing cavity 11b is used to place food, so as to isolate the tuning plate 15 and the electrode plate 16 from the food, and avoid the water vapor generated during the thawing process of the food from damaging the tuning plate 15 and the electrode plate 16.

[0054] The electrode plate 16 can be arranged in various ways inside the box body component 10a. For example, the electrode plate 16 can be arranged above, below, behind or on both sides of the drawer component 12. The embodiments of the present application do not limit this. In the embodiments of the present application, the electrode plate 16 is arranged below the drawer component 12.

[0055] The cylinder component 11 includes a support member 112, a shielding member 111 and a partition portion 114. The shielding member 111 is sleeved on the support member 112, and the partition portion 114 divides the interior of the support member 112 into a thawing cavity 11b and a tuning cavity 11a.

[0056] The shielding member 111 is a structural member in the cylinder component 11 mainly used to shield the radio frequency energy emitted by the radio frequency signal transmitter. The support member 112 is used as the support part of the cylinder component 11. By sleeving the shielding member 111 on the support member 112, it is used to support the shielding member 111 to prevent the shielding member 111 from deforming, that is, the shielding member 111 maintains its shape under the support of the support member 112, avoiding the deformation of the shielding member 111, ensuring the shape stability of the shielding member 111, improving the shielding effect of the shielding member 111, and correspondingly improving the thawing effect.

[0057] The partition portion 114 divides the interior of the support member 112 into a thawing cavity 11b and a tuning cavity 11a, so as to form an independent tuning cavity 11a and a thawing cavity 11b inside the cylinder component 11. The tuning cavity 11a is used to arrange the support bracket 14, the tuning plate 15 and the electrode plate 16, and the thawing cavity 11b is used to place food, so as to isolate the electrode plate 16 and the tuning plate 15 from the food, and avoid the water vapor generated during the thawing process of the food from damaging the electrode plate 16 and the tuning plate 15.

[0058] In some embodiments, the support member 112 and the partition portion 114 are integrally formed.

[0059] Since the radio frequency thawing device 10 has more structural components, there are more assembly processes during the processing of the radio frequency thawing device 10, which affects the production efficiency. In order to reduce the assembly processes of the radio frequency thawing device 10 during the processing, the support member 112 and the partition portion 114 are integrally formed, so as to directly assemble the whole formed by the support member 112 and the partition portion 114 with the shielding member 111 and the electrode plate 16, so as to improve the production efficiency and reduce the production cost.

[0060] In some embodiments, referring to Figures 9 - 11 , the radio frequency thawing device 10 further includes a partition portion 114. The partition portion 114 is detachably disposed within the shielding member 111. The electrode plate 16 can be fixedly disposed on the partition portion 114. When the position of the partition portion 114 changes, the electrode plate 16 moves together with the partition portion 114. The partition portion 114 includes at least two different position states within the shielding member 111. When the partition portion 114 is in different position states, the ratio of the thawing cavity 11b to the tuning cavity 11a is different, that is, the volume of the formed thawing cavity 11b is different. When the volume of the food to be heated is different, different volumes of the thawing cavity 11b are formed by adjusting the position of the partition portion 114, thereby effectively utilizing the volume within the entire shielding member 111 and effectively improving the space utilization rate and applicability.

[0061] The partition portion 114 is slidably disposed in the horizontal direction. When changing the position state of the partition portion 114, after pulling out the partition portion 114 in the horizontal direction and inserting it into the position corresponding to another position state, the change of the position state can be completed; in some embodiments, the partition portion 114 is disposed in the horizontal direction, and the positions of the partition portion 114 in at least two position states are offset in the height direction. The thawing cavity 11b can be located below the partition portion 114, so that the bottom wall of the shielding cavity 116a can be used as the bottom plate for placing the food, or the thawing cavity 11b can be disposed above the partition portion 114, so that the partition portion 114 can be used as the bottom plate for placing the food; the partition portion 114 can also be disposed in the vertical direction, and the positions of the partition portion 114 in at least two position states are offset in the horizontal direction, and the thawing cavity 11b is disposed on either side of the partition portion 114.

[0062] In some embodiments, when the partition portion 114 is vertically disposed or the upper part of the partition portion 114 serves as the thawing cavity 11b, the radio frequency energy output from the electrode plate 16 into the thawing cavity 11b is always in the maximum efficacy. In some other embodiments, such as when the lower part of the partition portion 114 serves as the thawing cavity 11b, the electrode plate 16 can always be disposed on one side wall of the shielding member 111, so that the radiation power of the electrode plate 16 does not change when the position of the partition portion 114 changes.

[0063] In some embodiments, at least one set of support portions 115b for restricting the position of the partition portion 114 are provided inside the shielding member 111. The partition portion 114 is detachably provided on the support portion 115b, and the support portion 115b is located at the position corresponding to different position states of the partition portion 114. For example, when there are two position states of the partition portion 114, the partition portion 114 in one position state is located at the middle position of the shielding member 111, and the partition portion 114 in the other position state is located at the bottom of the shielding member 111. Then, one set of support portions 115b can be provided and set at the middle position of the shielding member 111. When there are more sets of position states, the corresponding number of support portions 115b are respectively set at the positions corresponding to different position states of the partition portion 114. By connecting the partition portion 114 to different support portions 115b, the change of the position state of the partition portion 114 can be realized.

[0064] In some embodiments, each set of support portions 115b includes at least two. At least two support portions 115b are provided on different side walls of the shielding member 111. For example, when there are two support portions 115b, the two support portions 115b are respectively provided on opposite side walls of the shielding member 111, so as to provide stable support for the partition portion 114. When each set of support portions 115b includes more, the support portions 115b can be provided on other side walls to improve the support effect on the partition portion 114.

[0065] A holding portion 115c is provided on the support portion 115b. The holding portion 115c is provided at a position close to the side wall of the shielding member 111. When the partition portion 114 is placed on the holding portion 115c, the two holding portions 115c on both sides clamp the partition portion 114, thereby improving the stability of the partition portion 114. The upper end of the support portion 115b can also be used as the holding portion 115c to hold the partition portion 114, that is, the partition portion 114 is placed on the support portion 115b. The holding portion 115c can be made of an elastic material, or an elastic mounting member can be provided on the holding portion 115c, so as to buffer and protect the partition portion 114 when the partition portion 114 is placed. The holding portion 115c can also be in other forms. For example, a sliding groove is formed on the support portion 115b along the sliding direction of the partition portion 114 for the partition portion 114 to slide and insert, so as to further improve the fixing effect on the partition portion 114. The holding portion 115c can also be set as other forms such as a clamping member or an adsorbing member to achieve different fixing effects.

[0066] See Figure 1, in some embodiments, the side of the shielding member 111 where the opening is formed serves as the open end, and the shielding door 116 abuts against the open end under the action of gravity, so that the shielding door 116 seals the opening of the shielding member 111. Under the action of other forces on the shielding door 116 in addition to gravity, the shielding door 116 is driven by its own gravity to close the opening of the shielding member 111 to form a sealed accommodation cavity, effectively reducing the risk of electromagnetic leakage in the accommodation cavity.

[0067] In some embodiments, a shielding front frame 10b is provided on one side of the open end of the shielding member 111. The shielding front frame 10b is hermetically connected to the shielding member, so that the opening of the shielding front frame 10b serves as the access opening 117 of the shielding member 111. The side of the shielding front frame 10b away from the shielding member 111 serves as a support surface for mounting and bearing the shielding door 116. Among them, the top of the support surface is the first end 117a, and the bottom is the second end 117b. The second end 117b is provided at the bottom of the shielding front frame 10b. The first end 117a is closer to the shielding member 111 than the second end 117b, so that the support surface is inclined upward. The shielding door can be opened and closed to cover the support surface. The projection of the shielding door 116 on the shielding front frame 10b covers the access opening 117. When the shielding door 116 is closed, the shielding door 116 generates pressure on the support surface of the shielding front frame 10b under the action of gravity, and the pressure is evenly distributed, so that the shielding door 116 fits with the shielding front frame 10b, and effectively reduces the gap between the shielding door 116 and the shielding front frame 10b, improves the sealing performance of the shielding member 111 when the shielding door 116 is closed, and reduces the risk of electromagnetic leakage; In some embodiments, the shielding front frame 10b is inclined, the plane where the shielding front frame 10b is located is perpendicular to the side walls on both sides of the shielding member 111, and an acute angle is formed between the shielding front frame 10b and the bottom wall of the shielding member 111 to form a support surface inclined upward.

[0068] The inclination angle between the support surface and the bottom wall of the shielding member 111 can be between 15 degrees and 75 degrees to ensure that the pressure generated by the gravity of the shielding door 116 in the direction perpendicular to the support surface is within a certain range, so that the pressure can closely fit the shielding door 116 with the access opening 117.

[0069] The shielding member 111 may also not be provided with the shielding front frame 10b, and directly cut one side wall of the open end of the shielding member 111 into an inclined support surface. The access opening 117 is formed on the support surface. The support surface is perpendicular to the side walls on both sides of the shielding member 111 so that the access opening 117 is inclined upward. The shielding door 116 is directly covered on the support surface to open and close the access opening 117, further simplifying the structure of the entire box assembly 10a.

[0070] In some embodiments, the shielding door 116 is hingedly disposed on the front shielding frame 10b through a rotating member 118, making it more convenient to open and close the shielding door 116. The hinge axis is disposed along one side edge of the front shielding frame 10b. Among them, when the hinge axis is disposed along the inclined edges on both sides of the front shielding frame 10b or the shielding frame, since the supporting surface is inclined upward, only when the shielding door 116 is within the range between the vertical plane and the supporting surface, can the shielding door 116 rotate towards the front shielding frame 10b under the action of gravity, and the rotation range for automatic closing is less than 90 degrees. When the hinge axis is located above the shielding door 116, the rotation range for automatic closing is greater than 90 degrees. And during actual use, the angle at which the operator opens the shielding door 116 is generally within the range between the vertical plane and the supporting surface. At this time, when the shielding door 116 is released, the shielding door 116 can automatically close under the action of gravity. Therefore, the shielding door 116 is hingedly disposed above the front shielding frame 10b to make the operation process more convenient; the rotating member 118 includes a first transfer portion 118a and a second transfer portion 118b that are rotatably connected to each other, and the first transfer portion 118a and the second transfer portion 118b are respectively fixedly connected to the shielding door 116 and the front shielding frame 10b.

[0071] Another embodiment of the present application provides a refrigerator 100. Refer to Figures 12 - 14 , which includes a main body 20 and the radio frequency thawing device 10 provided in the first embodiment. Among them, the main body 20 is a basic component of the refrigerator 100 of the present application. The main body 20 can provide an installation basis for at least some other components of the refrigerator 100, and can also serve the purpose of protecting at least some other components of the refrigerator 100. The main body 20 is provided with an installation cavity 21, and the radio frequency thawing device 10 is disposed in the installation cavity 21.

[0072] The radio frequency thawing device 10 includes a thawing cavity 11b and a tuning cavity 11a. The thawing cavity 11b is used to accommodate the food to be thawed, and a plate is disposed in the tuning cavity 11a. The radio frequency thawing device 10 is a device for thawing food. When in use, the food to be thawed is placed in the thawing cavity 11b. A signal is output from the radio frequency generating component to the tuning plate, then the tuning plate outputs a signal to the plate, and finally the plate radiates a radio frequency signal to the thawing cavity 11b, and the food in the thawing cavity 11b is thawed by the radiated radio frequency signal.

[0073] There is a gap between the radio frequency thawing device 10 and the installation cavity 21, and the tuning cavity 11a has an air inlet 46 and an air outlet 47 that communicate with the gap. Thus, an air circulation is formed among the gap, the air inlet 46, the air outlet 47, and the thawing cavity 11b. During the flow of the air, the heat in the thawing cavity 11b can be continuously taken away, thereby reducing the temperature in the tuning cavity 11a, avoiding damage to the tuning module caused by high temperature to a certain extent, and ensuring the performance of the tuning module.

[0074] In some embodiments, the radio frequency thawing device 10 has more than one side wall 41, and both the air inlet 46 and the air outlet 47 are arranged on the side wall 41 of the radio frequency thawing device 10 to communicate with the gap between the radio frequency thawing device 10 and the installation cavity 21. Specifically, the air inlet 46 and the air outlet 47 can be jointly arranged on the same side wall 41 of the radio frequency thawing device 10, or can be arranged on different side walls 41, and this embodiment does not limit this.

[0075] Since when the air inlet 46 and the air outlet 47 are jointly arranged on the same side wall 41 of the radio frequency thawing device 10, that is, when the air inlet 46 and the air outlet 47 are arranged in the same plane, the heat discharged from the tuning cavity 11a is easily recycled into the tuning cavity 11a before it is completely dissipated, resulting in a lower heat dissipation efficiency. And because the farther the distance between the air inlet 46 and the air outlet 47 is, the larger the range of air circulation is, and the better the heat dissipation effect is. Therefore, for the consideration of the heat dissipation effect, in this embodiment, the air inlet 46 and the air outlet 47 are arranged on different side walls 41.

[0076] Specifically, the radio frequency thawing device 10 has a first side wall 41a and a second side wall 41b. The air inlet 46 is arranged on the first side wall 41a, and the air outlet 47 is arranged on the second side wall 41b. Of course, there are gaps between both the first side wall 41a and the second side wall 41b and the installation cavity 21, and the gap between the first side wall 41a and the installation cavity 21 communicates with the gap between the second side wall 41b and the installation cavity 21, so that an air circulation can be formed among the air inlet 46, the air outlet 47, the first side wall 41a, the second side wall 41b and the gap between them and the installation cavity 21 to dissipate heat from the tuning cavity 11a.

[0077] The first side wall 41a and the second side wall 41b can be arranged opposite to each other or can be connected. This embodiment does not limit this. When the first side wall 41a and the second side wall 41b are connected, the first side wall 41a and the second side wall 41b are connected at an angle. Specifically, the first side wall 41a and the second side wall 41b can be vertically connected.

[0078] In some embodiments, the second side wall 41b can be two, and both of the two second side walls 41b are provided with air outlets 47. In this way, two air circulation circuits are formed, and the two air circulation circuits dissipate heat from the tuning cavity 11a at the same time, so that the heat dissipation efficiency can be improved and the heat dissipation effect can be strengthened. Of course, more air outlets 47 can also be set on the premise of ensuring the protection of the tuning cavity 11a for the tuning module, so as to form more air circulation circuits to improve the heat dissipation efficiency.

[0079] The two second side walls 41b can be arranged oppositely, that is, the two second side walls 41b are arranged oppositely on both sides of the first side wall 41a, so as to realize heat dissipation on the opposite sides of the tuning cavity 11a. Specifically, the first side wall 41a can be the rear wall of the radio frequency thawing device 10, and the two second side walls 41b can be the upper wall and the lower wall of the radio frequency thawing device 10 respectively.

[0080] In some embodiments, the refrigerator 100 further includes a heat dissipation channel 42 and a heat dissipation fan 43 installed in the heat dissipation channel 42. The heat dissipation fan 43 can generate cold air. The gap between the first side wall 41a and the installation cavity 21 is communicated with the heat dissipation channel 42. In this way, the cold air blown by the heat dissipation fan 43 can sequentially pass through the heat dissipation channel 42 and the gap, and then enter the tuning cavity 11a through the air inlet 46 for heat exchange, so that the hot air in the tuning cavity 11a is discharged from the air outlet 47.

[0081] That is, under the action of the heat dissipation fan 43, while the hot air in the tuning cavity 11a is discharged from the air outlet 47, the cold air blown by the heat dissipation fan 43 continuously blows into the tuning cavity 11a. The temperature of the cold air is relatively low, which can take away more heat in the tuning cavity 11a, improve the heat exchange efficiency, and since the cold air flow rate is relatively fast, the discharge rate of the hot air in the tuning cavity 11a is also greatly increased.

[0082] When the radio frequency thawing device 10 works, the tuning module will continuously generate heat, and the generated heat is discharged from the air outlet 47 and dispersed into the gap between the radio frequency thawing device 10 and the installation cavity 21. However, due to the limited volume of the gap between the first side wall 41a, the second side wall 41b and the installation cavity 21, after the radio frequency thawing device 10 works for a long time, the gap between the radio frequency thawing device 10 and the installation cavity 21 will be filled with high-temperature gas, and heat dissipation for the tuning cavity 11a can no longer be carried out. Therefore, the gap between the radio frequency thawing device 10 and the installation cavity 21 needs to be communicated with the external space, so that the heat discharged from the air outlet 47 can be dispersed to the outside, and high temperature around the radio frequency thawing device 10 can be avoided.

[0083] Specifically, since the air outlet 47 is arranged on the second side wall 41b, the gap between the second side wall 41b and the installation cavity 21 is communicated with the external space, so that the heat discharged through the air outlet 47 can be dissipated to the external space through the gap between the second side wall 41b and the installation cavity 21.

[0084] In some embodiments, the refrigerator 100 further includes a wind flow accelerator 44. The wind flow accelerator 44 is arranged in the tuning cavity 11a and is used to divert the wind in the gap into the tuning cavity 11a. Thus, the wind flow accelerator 44 can increase the air flow speed in the tuning cavity 11a, and further enable the heat in the tuning cavity 11a to be dissipated faster, improving the heat dissipation efficiency.

[0085] Specifically, the air flow accelerator 44 can be disposed near the air inlet 46. The air flow accelerator 44 can be a drainage fan. Under the rotation of the drainage fan, the air in the gap can be continuously and rapidly gathered at the air inlet 46 and enter the tuning cavity 11a.

[0086] In some embodiments, as described above, the first side wall 41a can be the rear wall of the radio frequency thawing device 10, and the two second side walls 41b can be the upper wall and the lower wall of the radio frequency thawing device 10 respectively. Moreover, the upper wall, the lower wall and the rear wall all need to maintain a gap with the installation cavity 21. To enable the lower wall of the radio frequency thawing device 10 to also maintain a gap with the installation cavity 21, the refrigerator 100 further includes a bracket 45 disposed in the installation cavity 21. The radio frequency thawing device 10 is installed on the bracket 45. Under the supporting action of the bracket 45, a gap is formed between the tuning cavity 11a and the installation cavity 21.

[0087] Specifically, the bracket 45 includes a resisting portion 45a and a supporting portion 45b. The radio frequency thawing device 10 is installed on the resisting portion 45a, and the resisting portion 45a is supported on the supporting portion 45b so that the lower wall of the radio frequency thawing device 10 maintains a gap with the installation cavity 21.

[0088] In some embodiments, the refrigerator 100 can be a refrigerator. The main body 20 has a freezer compartment, a refrigerating compartment and a variable temperature compartment. The installation cavity 21 can be disposed in any one of the freezer compartment, the refrigerating compartment and the variable temperature compartment.

[0089] Specifically, the installation cavity 21 is disposed in the refrigerating compartment. The installation chamber is surrounded by the refrigerating rear wall, the refrigerating bottom wall and the refrigerating side wall 41 of the refrigerating compartment or by the refrigerating rear wall, the refrigerating bottom wall, the refrigerating side wall 41 and the middle partition portion of the refrigerating compartment.

[0090] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

Claims

1. A radio frequency thawing device, characterized in that, it includes: A box body assembly, the box body assembly includes a shielding member and a partition portion, a plurality of support portions are arranged on the inner wall of the shielding member, the partition portion is detachably installed on the support portions, the partition portion divides the shielding member into a thawing cavity and a tuning cavity, and the thawing cavity is used to accommodate food; A tuning plate, installed in the tuning cavity and electrically connected to the radio frequency generating assembly; A plate electrode, the plate electrode is fixedly connected to the partition portion and detachably connected to the tuning plate, the plate electrode is used to radiate radio frequency energy to the thawing cavity under the control of the radio frequency generating assembly to thaw the food in the thawing cavity; when the position of the partition portion changes, the plate electrode moves together with the partition portion, the partition portion includes at least two different position states in the shielding member, and when the partition portion is in different position states, the ratio of the thawing cavity to the tuning cavity formed by the division is different; Wherein, the tuning plate is arranged on the side wall perpendicular to the sliding direction of the partition portion, and plug-in portions for the plate electrode to be inserted are arranged at corresponding positions in different position states on the tuning plate. When the position of the plate electrode changes, after the plate electrode moves to the corresponding position state, it is electrically connected to the plug-in portion, so that the plate electrode is electrically connected to the tuning plate.

2. The radio frequency thawing device according to claim 1, characterized in that, The plug-in portion includes a fixed seat and a spring piece installed on the fixed seat. A pole piece for plugging into the tuning plate is arranged on the plate electrode, and the pole piece is plugged into the fixed seat and electrically connected to the spring piece.

3. The radio frequency thawing device according to claim 2, characterized in that, There are two spring pieces, the two spring pieces are arranged oppositely, the pole piece is plugged between the two spring pieces and electrically connected to at least one of the spring pieces.

4. The radio frequency thawing device according to claim 2, characterized in that, A fixing groove is arranged on the fixed seat, and the spring piece is arranged in the fixing groove.

5. The radio frequency thawing device according to claim 1, characterized in that, The support portion is arranged below the partition portion.

6. A refrigerator, characterized in that, it includes the radio frequency thawing device according to any one of claims 1-5.

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