CN220798572U - Radio frequency thawing system, radio frequency thawing device and refrigerator - Google Patents

Abstract

The application discloses a radio frequency thawing system, radio frequency thawing apparatus and refrigerator solves the inside line of prior art radio frequency thawing system and the complicated technical problem of structural design. The radio frequency thawing system comprises a power amplification module, a control module, a power supply module, a tuning module and a polar plate, wherein the power amplification module, the control module and the tuning module are arranged on the same electric control plate, a coaxial line is not required to be arranged between the power amplification module and the tuning module, a control signal line is not required to be arranged between the control module and the tuning module, and the electric control plate is connected with the power supply module in a line mode and can radiate radio frequency energy outwards after being electrically connected with the polar plate. Therefore, the internal wiring of the radio frequency thawing system is reduced, the structural installation efficiency and the simplicity are improved, the cost of the whole radio frequency thawing system is reduced, the signal attenuation caused by long wires is avoided, and the performance of the radio frequency thawing system is improved.

Description

Radio frequency thawing system, radio frequency thawing device and refrigerator

Technical Field

The application belongs to the technical field of radio frequency thawing systems, and particularly relates to a radio frequency thawing system, a radio frequency thawing device and a refrigerator.

Background

The radio frequency thawing system mainly comprises a power supply module, a power amplification module, a control module and a tuning module, wherein the power supply module is used for supplying power to the power amplification module and the control module, the power amplification module is used for controlling the output voltage regulation of the power supply module according to an algorithm, the power amplification module is mainly used for amplifying the power of a signal source and outputting the signal to the tuning module to achieve thawing, meanwhile, the power amplification module is used for detecting and outputting the signal to the control module, and the control module is used for controlling the signal source, the power amplification circuit and the power supply module in a related mode through the algorithm; the tuning module is mainly used for enabling the drawer to reach the optimal impedance through impedance matching, and improving the thawing effect.

The common system topology draws the power amplifier module and the control module on the same electric control board, the power amplifier module and the control module are separately placed with the tuning module after being closely connected with the power module through a wire harness, and then the control signal wire is connected with the tuning module placed in the drawer through a coaxial wire, so that the internal wiring and the structural design are complex to install, and the cost is high.

Disclosure of Invention

In order to solve the problem that the internal wiring and structural design of the existing radio frequency thawing system are complex, the application provides a radio frequency thawing system, a radio frequency thawing device and a refrigerator.

In a first aspect of the present application: there is provided a radio frequency thawing system comprising:

the power amplification module comprises a signal source and a power amplification circuit which are electrically connected;

the control module is electrically connected with the signal source and the power amplifying circuit;

the power module is electrically connected with the power amplifier module and the control module and is used for supplying power to the power amplifier module and the control module;

the tuning module is electrically connected with the power amplifying circuit;

the polar plate is electrically connected with the tuning module and is used for radiating radio frequency energy;

the power amplifier module, the control module and the tuning module are arranged on the same electric control board.

In some embodiments, the radio frequency thawing system further comprises a detection circuit electrically connected with the control module, wherein the detection circuit, the power amplification module, the control module and the tuning module are arranged on the electric control board.

In some embodiments, the power amplifying circuit includes a primary driver and a secondary power amplifying circuit, where the primary driver and the secondary power amplifying circuit are both disposed on the electric control board, and the signal source, the primary driver, the secondary power amplifying circuit, the tuning module and the pole plate are electrically connected in sequence.

In some embodiments, the power amplifier module, the control module, the power module, and the tuning module are disposed on the same electronic control board.

In some embodiments, the radio frequency thawing system further comprises a shielding cover, wherein the shielding cover covers the power amplifier module and the control module.

In some embodiments, the tuning module is coated with a potting adhesive.

In some embodiments, the rf thawing system further comprises a heat sink; the electric control plate is arranged on the heat dissipation piece, and is positioned between the heat dissipation piece and the shielding cover.

In a second aspect of the present application: there is provided a radio frequency thawing apparatus comprising:

the box body assembly is provided with a first shielding cavity and a second shielding cavity which are mutually independent;

the drawer assembly is arranged in the first shielding cavity and is used for accommodating food to be thawed;

in the radio frequency thawing system of the first aspect, the electric control board of the radio frequency thawing system is disposed in the second shielding cavity, and the polar plate of the radio frequency thawing system is disposed in the first shielding cavity and is used for radiating radio frequency energy into the drawer assembly so as to thaw the food to be thawed.

In some embodiments, the box assembly comprises a shielding shell, a shielding baffle and a shielding cover, wherein the shielding baffle is connected with one end of the shielding shell to form the first shielding cavity, and the shielding cover is connected with the shielding baffle to form the second shielding cavity;

the electric control plate is connected with the shielding cover or the shielding partition plate;

the power supply module is arranged in the second shielding cavity; or the power supply module is arranged outside the second shielding cavity and connected with the shielding cover.

In a third aspect of the present application: there is provided a refrigerator comprising a refrigerator main body and the radio frequency thawing device of the second aspect, wherein the radio frequency thawing device is arranged in the refrigerator main body.

According to the technical scheme, the radio frequency thawing system comprises a power amplifier module, a control module, a power module, a tuning module and a polar plate, wherein the power amplifier module, the control module and the tuning module are arranged on the same electric control board, a coaxial line is not required to be arranged between the power amplifier module and the tuning module, a control signal line is not required to be arranged between the control module and the tuning module, and the polar plate can radiate radio frequency energy outwards after the electric control board is connected with the power module in a line mode and is electrically connected with the polar plate. Therefore, the internal wiring of the radio frequency thawing system is reduced, the structure installation efficiency and the simplicity are improved, and the cost of the whole radio frequency thawing system is reduced. In addition, as the power amplifier module, the control module and the tuning module are arranged on the same electric control board, signal attenuation caused by long wires is avoided, and the performance of the radio frequency thawing system is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 illustrates a functional block diagram of a radio frequency thawing system in some embodiments of the present application.

Fig. 2 illustrates a functional block diagram of a radio frequency thawing system in accordance with further embodiments of the present application.

Fig. 3 is a schematic structural diagram of an electric control board module of the rf thawing system in some embodiments of the present application.

Fig. 4 shows an exploded view of the electric control board module of fig. 3.

Fig. 5 is a schematic structural diagram of a radio frequency thawing device in some embodiments of the present application.

Fig. 6 shows a schematic structural view of the rf thawing apparatus of fig. 5 after removal of the shield.

Fig. 7 shows an exploded view of the housing assembly of the rf thawing apparatus of fig. 5.

Fig. 8 illustrates an exploded view of a radio frequency thawing device in some embodiments of the present application.

Fig. 9 is a schematic view showing a structure of a refrigerator in some embodiments of the present application.

Fig. 10 is a view showing a structure of an arrangement of a radio frequency thawing device in a liner in the refrigerator of fig. 9.

Reference numerals illustrate: the system comprises a 100-radio frequency thawing system, a 101-power amplification module, a 1011-signal source, a 1012-primary driver, a 1013-secondary power amplification circuit, a 102-control module, a 103-tuning module and a 104-power module; 105-polar plate; 106-a detection circuit; 107-tuning the inductance; 110-an electric control board; 120-shielding cover, 124-mounting lugs; 130-heat radiating piece, 131-heat radiating plate, 132-heat radiating fin; 140-of a glue filling box, 141-of a containing area and 142-of a through hole; 150-an electric control board module; 160-fasteners; 200-radio frequency thawing device, 201-first shielding cavity, 202-second shielding cavity, 203-tuning cavity; 210-box components, 211-shielding shells, 212-shielding partition plates, 213-shielding cases, 2131-air inlets, 2132-air outlets and 214-protruding parts; 220-drawer assembly; 230-a fan; 240-wind guide piece; 1000-refrigerator, 300-refrigerator main body, 301-refrigerating chamber, 310-first storage box, 320-small drawer, 330-second storage box, 340-water tank, 350-inner container, 351-back plate, 352-return air inlet.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

In the related art, the radio frequency thawing system has the technical problems of complicated internal wiring and structural design. The embodiment of the application provides a radio frequency thawing system, a radio frequency thawing device and a refrigerator, which at least can solve the technical problems to a certain extent. The present application is described below with reference to specific embodiments in conjunction with the accompanying drawings:

in a first aspect of the embodiments of the present application, a radio frequency thawing system 100 is provided, as shown in fig. 1 and 2, which is a functional block diagram of the radio frequency thawing system 100. The radio frequency thawing system 100 comprises a power amplifier module 101, a control module 102, a power module 104, a tuning module 103 and a pole plate 105. The power amplifier module 101, the control module 102 and the tuning module 103 are arranged on the same electric control board 110, so that a coaxial line is not required to be arranged between the power amplifier module 101 and the tuning module 103, a control signal line is not required to be arranged between the control module 102 and the tuning module 103, and after the electric control board 110 is connected with the power module 104 in a line manner and is electrically connected with the polar plate 105, the polar plate 105 can radiate radio frequency energy outwards. Therefore, the radio frequency thawing system 100 reduces internal wiring, improves the structural installation efficiency and the simplicity, and reduces the cost of the whole radio frequency thawing system 100. In addition, since the power amplifier module 101, the control module 102 and the tuning module 103 are arranged on the same electric control board 110, signal attenuation caused by long wires is avoided, and the performance of the radio frequency thawing system 100 is improved.

In the rf thawing system 100, the power amplifier module 101 is configured to generate a power-amplified rf signal. The power amplification module 101 generally includes a signal source 1011 and a power amplification circuit electrically connected, where the signal source 1011 is configured to generate an initial signal with a set frequency (e.g. 40.68 MHz), the power amplification circuit is configured to power amplify the initial signal, enhance the power of the initial signal, output a radio frequency signal after power amplification, and amplify the radio frequency signal generated by the crystal oscillator step by step to reach a level of hundred watts.

The power amplifying circuit can adopt primary amplification, secondary amplification, tertiary amplification or even more according to actual needs, and specific amplification stages and circuit structures of the amplifying circuits at all stages can refer to related publications in the prior art, so that the power amplifying circuit is not limited. In some embodiments, referring to fig. 1 and 2, in some embodiments, the power amplifying circuit adopts a second-stage amplification, including a first-stage driver 1012 and a second-stage power amplifying circuit 1013, where the first-stage driver 1012 and the second-stage power amplifying circuit 1013 are disposed on the electronic control board 110, and the signal source 1011, the first-stage driver 1012, the second-stage power amplifying circuit 1013, the tuning module 103, and the polar plate 105 are electrically connected in sequence. The primary driver 1012 and the secondary power amplification circuit 1013 amplify the initial signal from the signal source 1011 step by step, and the amplified signal is output from the secondary power amplification circuit 1013. The specific circuit structures of the primary driver 1012 and the secondary power amplification circuit 1013 are disclosed with reference to the related art, and the present application is not limited thereto.

The power module 104 is internally provided with an ac/dc conversion circuit and a voltage regulating circuit, and is used for performing ac/dc conversion and voltage regulation, and supplying low-voltage dc power to the power amplifier module 101 and the control module 102. Referring to fig. 1, in some embodiments, the power module 104 is disposed independently, and the power module 104 and the electronic control board 110 may be installed in the same space or in different spaces. Referring to fig. 2, in some embodiments, the power amplifier module 101, the control module 102, the power module 104 and the tuning module 103 are disposed on the same electric control board 110, so that the whole rf thawing system 100 only includes one electric control board 110 and one polar plate 105, and the integration level is higher.

The control module 102 is electrically connected with the signal source 1011 and the power amplification circuit, and the power amplification module 101 is controlled by a control system (for example, an MCU controller) of the control module 102 when in operation, the control module 102 is electrically connected with an external input device (a display screen, an operation panel, a keyboard, etc.), receives an operation instruction sent by a user, and controls the circuits of the power supply module 104 and the power amplification module 101 to operate. When the output power of the power amplifier module 101 needs to be adjusted, the control module 102 calculates an adjusting voltage control command based on an internal algorithm and sends the adjusting voltage control command to the power module 104, and the power module 104 adjusts the voltage to change the output voltage of the power module 104.

The tuning module 103 is electrically connected with the power amplification circuit of the power amplification module 101, and the tuning module 103 is used for balancing the impedance of the load end so as to realize impedance matching, so that the radio frequency thawing device 200 can reach the optimal impedance through the impedance matching, and the thawing effect is improved. The polar plate 105 is electrically connected with the tuning module 103 and is used for radiating radio frequency energy to achieve the purpose of thawing food materials.

In some embodiments, referring to fig. 1 and 2, the rf thawing system 100 is further provided with a detection circuit 106, where the detection circuit 106, the power amplifier module 101, the control module 102, and the tuning module 103 are disposed on the same electronic control board 110. The detection circuit 106 is configured to detect the output power of the rf signal after power amplification, and feed back the output power to the control module 102. Specifically, the control module 102 is electrically connected to the detection circuit 106, and the detection circuit 106 is configured to detect the reflected power reflected by the tuning module 103 and feed back the reflected power to the control module 102, where the control module 102 performs related control on the signal source 1011, the power amplifying circuit, and the power supply module 104 through an internal algorithm.

In the related art, the power amplifier module 101 and the control module 102 are drawn on the same electric control board, meanwhile, because the tuning module 103 has strong electromagnetic radiation, interference is easily caused to the power amplifier module 101 and the control module 102, so the power amplifier module 101 and the control module 102 are placed far away from the tuning module 103 after being connected with the power module 104 through a wire harness, such as placed on the top of a refrigerator or a refrigerator backboard, and then a control signal wire is connected with the tuning module 103 placed in a drawer through a coaxial line. In this application, since the power amplifier module 101, the control module 102 and the tuning module 103 are disposed on the same circuit substrate, in order to reduce interference of the tuning module 103 to the power amplifier module 101 and the control module 102, please refer to fig. 3 and fig. 4, in some embodiments, the radio frequency thawing system 100 further includes a shielding cover 120, where the shielding cover 120 covers the electric control board 110, and covers the power amplifier module 101 and the control module 102, so as to achieve shielding, waterproof, dustproof and insect-proof effects on the power amplifier module 101 and the control module 102.

The tuning module 103 is exposed outside the shielding cover 120, and when the electronic control board 110 is installed outside the apparatus, protection, water resistance, dust resistance and insect resistance are required for the tuning module 103. If the electronic control board 110 is installed inside the device, for example, inside a refrigerator, the temperature inside the refrigerator is low, heat is generated during thawing, condensation is generated by cold and hot impact, and damage to the exposed tuning module 103 is easily caused. For this reason, in some embodiments, the tuning module 103 is coated with a potting adhesive, and the potting adhesive is filled between the electronic components of the tuning module 103, and completely coats the pins, the wires and the electronic components, so that not only can the tuning module be waterproof, dustproof and insect-proof, but also the tuning module can play a role in increasing heat dissipation. The potting adhesive may only encapsulate the tuning module 103, and in some embodiments, may also encapsulate the electronic control board 110 and the shielding cover 120 integrally, so that the potting adhesive may conduct heat generated by components on the electronic control board 110 to the shielding cover 120.

Referring to fig. 3 and 4, in some embodiments, the rf thawing system 100 further includes a heat sink 130, the electric control board 110 is disposed on the heat sink 130, and the electric control board 110 is sandwiched between the heat sink 130 and the shielding cover 120. The electric control board 110 is in heat transfer contact with the heat sink 130, and the electric control board 110 and the heat sink 130 can be selectively connected and fixed or only in contact. The heat sink 130 is provided with an air flow passage, and heat of the heat sink 130 can be taken away when wind flows through the air flow passage.

The heat dissipation element 130 conducts heat with the electric control board 110, and the heat dissipation element 130 is required to have good heat conductivity, and metal and ceramic heat conductivity can be achieved, so that the material and shape of the heat dissipation element 130 are not limited. In some embodiments, the heat sink 130 is made of metal, and may be aluminum, iron, or other metals or alloys thereof, and aluminum is preferred in view of light weight.

In order to satisfy the installation and heat dissipation of the electric control board 110, referring to fig. 4, the heat dissipation member 130 includes a heat dissipation plate 131 and a plurality of heat dissipation fins 132, the heat dissipation fins 132 are distributed on one surface of the heat dissipation plate 131, and each heat dissipation fin 132 is distributed at intervals, so that gaps between the heat dissipation fins 132 form an airflow channel, and the specific number and intervals of the heat dissipation fins 132 depend on the heat dissipation requirement of the electric control board 110. In some embodiments, the heat dissipating plate 131 is integrally formed with the heat dissipating fins 132. The heat dissipation plate 131 has a large installation plane, the electronic control board 110 is installed on the installation plane of the heat dissipation plate 131 by the fastening member 160, and the electronic control board 110 is at least partially in contact with the heat dissipation plate 131.

Because the metal is electrically conductive, in order to guarantee that automatically controlled board 110 and heating panel 131 fully contact as far as possible, in some embodiments, be equipped with a plurality of avoidance blind holes on the mounting plane of heating panel 131, the quantity and the position of avoiding the blind hole correspond with the quantity and the distribution of the conductor (pin, soldering tin portion, wire etc.) of automatically controlled board 110 completely, the hole size of dodging is greater than the conductor that corresponds on the automatically controlled board 110 for the conductor stretches into in dodging the blind hole, can not contact with heating panel 131 simultaneously, can ensure from this that automatically controlled board 110 closely laminates with heating panel 131, area of contact is bigger is favorable to the heat dissipation, and automatically controlled board 110 overall structure is more stable. Avoid the blind hole because design as the blind hole, can avoid the design to lead to conductor and water contact and the problem of electric leakage as the through-hole.

The heat sink 130 has a structural strength higher than that of the electronic control board 110, and thus the heat sink 130 serves as a mounting base for both the electronic control board 110 and the shielding cover 120, and the electronic control board 110 and the shielding cover 120 are mounted on the heat sink 130 by the fasteners 160, as shown in fig. 3. In some embodiments, at least two mounting lugs 124 are disposed on the heat dissipating plate 131 and/or the shielding cover 120, where the mounting lugs 124 may be disposed on the heat dissipating plate 131 or the shielding cover 120 according to actual needs, and fixing holes for installing the fasteners 160 are disposed in the mounting lugs 124, and the fixing holes may be light holes or threaded holes, and the fasteners 160 may adopt structures such as screws, rivets, pins, and the like, which is not limited in this application.

In some embodiments, referring to fig. 3 and 4, in order to facilitate glue filling on the tuning module 103, the rf thawing system 100 further includes a glue filling box 140, the glue filling box 140 is provided with a receiving area 141 and a through hole 142, the heat dissipation member 130 protrudes out of the glue filling box 140 through the through hole 142, specifically, the heat dissipation plate 131 of the heat dissipation member 130 is located in a box cavity of the glue filling box 140, and the heat dissipation fins 132 extend out of the glue filling box 140. The substrate of the electronic control board 110 is located in the box cavity of the glue filling box 140, and the components of the tuning module 103 are at least partially located in the accommodating area 141, so that the tuning module 103 is fixed to the glue filling box 140 through sealing of the pouring sealant.

In some embodiments, the heat sink 130, the shielding cover 120, the glue-pouring box 140, and the electronic control board 110 are hermetically connected by integrally-potted glue, forming an electronic control board module 150, and the electronic control board module 150 is integrally connected to external components, as shown in fig. 5.

In a second aspect of the present application, a radio frequency thawing device 200 is provided, and referring to fig. 5, an overall structure diagram of the radio frequency thawing device 200 is shown. The rf thawing apparatus 200 includes a housing assembly 210, a drawer assembly 220, and the rf thawing system 100 according to the first embodiment, referring to fig. 7, the housing assembly 210 has a first shielding cavity 201 and a second shielding cavity 202 that are independent of each other, the drawer assembly 220 is installed in the first shielding cavity 201, the drawer assembly 220 is used for accommodating food to be thawed inside, the electronic control board 110 of the rf thawing system 100 is disposed in the second shielding cavity 202, and the polar plate 105 of the rf thawing system 100 is disposed in the first shielding cavity 201 and is used for radiating rf energy into the drawer assembly 220 to defrost the food to be thawed.

Referring to fig. 6 and 7, in some embodiments, the box assembly 210 includes a shielding shell 211, a shielding partition 212 and a shielding cover 213, where the shielding partition 212 is connected to one end of the shielding shell 211 to form a first shielding cavity 201, and one end of the shielding shell 211 is open for the drawer assembly 220 to be pulled and moved. The shield 213 is connected to the shield 212 to form the second shield cavity 202, and the electronic control board 110 is selectively connected to the shield 213 or the shield 212. In some embodiments, the power module 104 is also disposed within the second shielded cavity 202. In some embodiments, the power module 104 may also be disposed outside the second shielding cavity 202, and the power module 104 is connected to the shielding case 213, so as to shorten the wiring length between the power module 104 and the electronic control board 110, as shown in fig. 8.

Referring to fig. 5 and 7, in some embodiments, a protruding portion 214 is disposed at the bottom of the shielding shell 211, and the protruding portion 214 protrudes from the shielding shell 211 in a direction away from the first shielding cavity 201, so that the first shielding cavity 201 is expanded inside the protruding portion 214 to form a tuning cavity 203, and the polar plate 105 of the rf thawing system 100 is disposed in the tuning cavity 203. In addition, the protruding portion 214 serves as the tuning cavity 203 to accommodate the pole plate 105, and also serves to strengthen the structural strength of the shielding shell 211, so that the occurrence probability of magnetic leakage caused by damage to the shielding shell 211 can be reduced to a certain extent.

Referring to fig. 8, in some embodiments, the tuning inductor 107 of the tuning module 103 is disposed outside the electric control board 110, and specifically is located in the second shielding cavity 202, and the shape of the shielding cover 213 is designed according to the shapes of the electric control board module 150 and the tuning inductor 107, for example, the electric control board module 150 is substantially rectangular and boxed, the tuning inductor 107 is an air-core winding inductor, and is cylindrical as a whole, and then the shielding cover 213 includes two rectangular portions for accommodating the electric control board module 150 and the tuning inductor 107, respectively.

Referring to fig. 8, in some embodiments, the radio frequency thawing device 200 is further provided with a heat dissipation assembly for dissipating heat from the electric control board 110, the heat dissipation assembly includes a fan 230 and an air guiding member 240, and since the electric control board 110 is installed in the second shielding cavity 202, an air inlet 2131 and an air outlet 2132 are provided on the shielding cover 213 forming the second shielding cavity 202, the air inlet 2131 and the air outlet 2132 are both communicated with the second shielding cavity 202, the fan 230 is installed on the shielding cover 213 or a structural member around the radio frequency thawing device 200, and an air inlet end and an air outlet end of the fan 230 are communicated with the air inlet 2131 and the air guiding member 240 for exhausting air in the second shielding cavity 202 from the air outlet 2132 to the outside of the air guiding member 240.

When the rf thawing device 200 is installed in the refrigerating chamber or the freezing chamber of the refrigerator, since the air intake 2131 is simultaneously communicated with the refrigerating chamber or the freezing chamber, cold air of the refrigerating chamber or the freezing chamber can be introduced into the second shielding chamber 202. After entering the second shielding cavity 202, the cold air exchanges heat with the radiating fins 132, so that the radiating fins 132 cool the electric control board 110. The heat-exchanged hot air is drawn out to the air guide 240 by the blower 230 through the air outlet 2132. Referring to fig. 8, in some embodiments, the air outlet end of the air guide 240 may be connected to the air return opening 352 provided on the back plate 351 of the refrigerator, so that the hot air after heat exchange enters the refrigerating device through the air return channel of the refrigerator, and after heat exchange, the hot air is reformed into cold air, and is returned to the refrigerating chamber or the freezing chamber. In some embodiments, the air outlet end of the air guide 240 may be exposed, and the hot air may be directly discharged to the outside of the refrigerator through the air guide 240.

In a third aspect of the present application, a refrigerator 1000 is provided, referring to fig. 9, a schematic structural diagram of the refrigerator 1000 is shown. The refrigerator 1000 includes a refrigerator main body 300 and the radio frequency thawing device 200 of the above-described second embodiment, and the radio frequency thawing device 200 is provided inside the refrigerator main body 300. Wherein the refrigerator main body 300 is a basic member of the refrigerator 1000, the refrigerator main body 300 may provide a mounting basis for other at least partial components of the refrigerator 1000, and may also serve the purpose of protecting the other at least partial components of the refrigerator 1000.

In some embodiments, the refrigerator main body 300 has a freezing chamber, a refrigerating chamber 301, and a temperature changing chamber, and the rf thawing device 200 may be disposed in any one of the freezing chamber, the refrigerating chamber 301, and the temperature changing chamber. Referring to fig. 10, the rf thawing apparatus 200 is disposed in a refrigerating chamber 301 of a refrigerator 1000. The refrigerating chamber 301 of the refrigerator 1000 is provided with an air duct, the portion of the inner container 350 of the refrigerating chamber 301 of the refrigerator 1000 corresponding to the radio frequency thawing device 200 is partially recessed, the recessed portion is a part of the air duct, and when the radio frequency thawing device 200 is installed in the inner container 350, the protruding portion 214 is located in the recessed portion, so that the protruding portion 214 does not occupy the original installation space of the shielding shell 211 in the refrigerating chamber 301. In some embodiments, the protruding portion 214 is spaced from the inner container 350 to ensure that air flows between the protruding portion 214 and the inner container 350, so as to ensure that heat in the tuning cavity 203 is taken away by the air, and enhance the heat dissipation effect of the tuning cavity 203.

In some embodiments, referring to fig. 10, the refrigerator 1000 further includes a first storage box 310, a small drawer 320, a second storage box 330, and a water tank 340. The small drawer 320 is stacked with the rf thawing device 200 in a height direction and is located at one side of the refrigerator 1000 in a width direction, and the first storage box 310 is placed at the other side of the refrigerator 1000 in the width direction. Considering that the rf thawing apparatus 200 is relatively heavy, the rf thawing apparatus 200 is directly mounted to the liner 350 and is located in the bottom space of the liner 350. The second storage box 330 and the water tank 340 are located at an upper layer of the small drawer 320 and the first storage box 310, and the second storage box 330 and the water tank 340 are also arranged side by side in the width direction of the refrigerator 1000. Other details of the refrigerator 1000 are not described herein, with reference to related disclosures of the prior art.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate or positional relationships are based on the positional relationships shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

It should be noted that all the directional indicators in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In addition, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in this application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A radio frequency thawing system (100), characterized in that it comprises:

the power amplification module (101) comprises a signal source (1011) and a power amplification circuit which are electrically connected;

the control module (102) is electrically connected with the signal source (1011) and the power amplifying circuit;

the power module (104) is electrically connected with the power amplification module (101) and the control module (102) and is used for supplying power to the power amplification module (101) and the control module (102);

a tuning module (103) electrically connected to the power amplification circuit;

a pole plate (105) electrically connected to the tuning module (103) for radiating radio frequency energy;

the power amplifier module (101), the control module (102) and the tuning module (103) are arranged on the same electric control board (110).

2. The radio frequency thawing system (100) as in claim 1, wherein: the radio frequency thawing system (100) further comprises a detection circuit (106) electrically connected with the control module (102), wherein the detection circuit (106), the power amplifier module (101), the control module (102) and the tuning module (103) are arranged on the electric control board (110).

3. The radio frequency thawing system (100) as in claim 1, wherein: the power amplification circuit comprises a primary driver (1012) and a secondary power amplification circuit (1013), wherein the primary driver (1012) and the secondary power amplification circuit (1013) are both arranged on the electric control board (110), and the signal source (1011), the primary driver (1012), the secondary power amplification circuit (1013), the tuning module (103) and the polar plate (105) are electrically connected in sequence.

4. A radio frequency thawing system (100) as in any of the claims 1-3, characterized in that: the power amplifier module (101), the control module (102), the power module (104) and the tuning module (103) are arranged on the same electric control board (110).

5. A radio frequency thawing system (100) as in any of the claims 1-3, characterized in that: the radio frequency thawing system (100) further comprises a shielding cover (120), and the shielding cover (120) is covered on the power amplification module (101) and the control module (102).

6. The radio frequency thawing system (100) as in claim 5, wherein: and the tuning module (103) is coated with pouring sealant.

7. The radio frequency thawing system (100) as in claim 5, wherein: the radio frequency thawing system (100) further comprises a heat sink (130); the electric control plate (110) is arranged on the heat dissipation piece (130), and the electric control plate (110) is arranged between the heat dissipation piece (130) and the shielding cover (120).

8. A radio frequency thawing device (200), characterized in that it comprises:

a housing assembly (210) having a first shielded chamber (201) and a second shielded chamber (202) that are independent of each other;

a drawer assembly (220) mounted within the first shielded cavity (201) for containing food to be thawed;

the radio frequency thawing system (100) as in any of claims 1-7, wherein said electronic control board (110) of said radio frequency thawing system (100) is disposed within said second shielded cavity (202), and wherein said pole plate (105) of said radio frequency thawing system (100) is disposed within said first shielded cavity (201) for radiating radio frequency energy into said drawer assembly (220) for thawing said food to be thawed.

9. The radio frequency thawing device (200) as claimed in claim 8, characterized in that: the box body assembly (210) comprises a shielding shell (211), a shielding baffle plate (212) and a shielding cover (213), wherein the shielding baffle plate (212) is connected with one end of the shielding shell (211) to form a first shielding cavity (201), and the shielding cover (213) is connected with the shielding baffle plate (212) to form a second shielding cavity (202);

the electric control plate (110) is connected to the shielding cover (213) or the shielding partition plate (212);

the power module (104) is arranged in the second shielding cavity (202); or the power module (104) is arranged outside the second shielding cavity (202) and is connected with the shielding cover (213).

10. A refrigerator (1000), characterized by: comprising a refrigerator body (300) and a radio frequency thawing device (200) as claimed in claim 8 or 9, said radio frequency thawing device (200) being provided inside said refrigerator body (300).