CN113915858A

CN113915858A - Radio frequency thawing refrigerator

Info

Publication number: CN113915858A
Application number: CN202110106950.2A
Authority: CN
Inventors: 李秀军; 张善房; 段跃斌; 鲍雨锋
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-12-02
Filing date: 2021-02-01
Publication date: 2022-01-11
Anticipated expiration: 2041-02-01
Also published as: CN214371185U; CN214620252U; CN113915863B; CN113915859A; CN214371182U; CN113915864A; CN113915861B; CN113915857B; CN113915857A; CN113915935B; CN113915864B; CN113915862A; CN113915861A; CN113915860A; CN214665466U; CN113915936A; CN214892054U; CN214665468U; CN214371190U; CN214665467U

Abstract

The invention relates to the technical field of unfreezing, and discloses a radio frequency unfreezing refrigerator which comprises a refrigerator body, a refrigerator door and a radio frequency unfreezing device, wherein the refrigerator door is arranged on the refrigerator body; the tuning module of the radio frequency thawing device comprises a cylinder, a door body, a tuner and a capacitor; the cylinder is arranged in a refrigerating chamber of the box body, and a tuning chamber and a thawing chamber are limited in the cylinder; the tuner and the capacitor are respectively positioned at two sides of the interior of the tuning chamber; the tuning chamber and the unfreezing chamber are isolated from the refrigerating chamber, and interlayer air ducts are arranged on two sides of the tuning chamber and communicated with the unfreezing chamber; the tuning chamber is provided with an air inlet corresponding to the tuner and an air outlet corresponding to the capacitor; the box body is provided with at least one air inlet and one air outlet at the position corresponding to the tuning chamber, the air inlet extends inwards to form an outer air inlet channel communicated with the air inlet hole, and the air outlet extends inwards to form an outer air outlet channel communicated with the air outlet hole. The invention can take most of the heat generated by the radio frequency thawing device out of the refrigerator, and is beneficial to ensuring the thawing process to be carried out smoothly and maintaining the normal operation of the refrigerator.

Description

Radio frequency thawing refrigerator

Technical Field

The invention relates to the technical field of unfreezing, in particular to a radio frequency unfreezing refrigerator.

Background

The radio frequency thawing technology can enable a thawed object to be thawed uniformly and quickly by penetrating food through low-frequency electromagnetic waves, and effectively solves the inconvenience of thawing in life, so that the radio frequency thawing refrigerator is popular in the market.

However, the existing radio frequency thawing refrigerator has the following obvious defects:

the radio frequency thawing device during operation and food material thawing process can produce a large amount of heat, and current radio frequency thawing device generally cools down through fan and refrigerator cold storage or alternating temperature gas convection, and all thermal balances all are in the refrigerator, probably lead to refrigerator local temperature to rise to more than 70 ℃, seriously influence the normal work of food material thawing effect and refrigerator, also can bring the potential safety hazard simultaneously.

Thus, improvements in the prior art are needed.

Disclosure of Invention

The purpose of the invention is: the invention provides a radio frequency thawing refrigerator, which aims to solve the technical problem of poor heat dissipation in the working process of a radio frequency thawing device of the radio frequency thawing refrigerator in the prior art.

In order to achieve the aim, the invention provides a radio frequency thawing refrigerator, which comprises a refrigerator body, a refrigerator door and a radio frequency thawing device, wherein the refrigerator door is arranged on the refrigerator body; the refrigerator body is sequentially provided with a refrigerating chamber, a freezing chamber and a press bin close to the bottom of the freezing chamber along the vertical direction of the refrigerator body, and the refrigerator door is used for opening and closing the refrigerating chamber and the freezing chamber;

wherein the radio frequency thawing device comprises a tuning module;

the tuning module comprises a cylinder, a door body, a tuner and a capacitor;

the cylinder is arranged in the refrigerating chamber, and a tuning chamber and a thawing chamber with a forward opening are limited in the cylinder; the door body is arranged at the front opening of the thawing chamber; the tuner and the capacitor are respectively positioned at two sides of the interior of the tuning chamber;

the tuning chamber and the unfreezing chamber are isolated from the refrigerating chamber, and interlayer air ducts are arranged on two sides of the tuning chamber and communicated with the unfreezing chamber;

the tuning chamber is provided with an air inlet hole and an air outlet hole, the air inlet hole corresponds to the tuner, and the air outlet hole corresponds to the capacitor; the box body is provided with at least one air inlet and one air outlet at the position corresponding to the tuning chamber in the horizontal height, the air inlet extends inwards to form an outer air inlet channel communicated with the air inlet hole, and the air outlet extends inwards to form an outer air outlet channel communicated with the air outlet hole.

In some embodiments of the present application, a plurality of first air holes are formed on two side walls of the thawing chamber and communicated with the interlayer air duct, and a plurality of second air holes are formed on two side walls of the tuning chamber and communicated with the interlayer air duct.

In some embodiments of the present application, at least one fan is disposed in the outer air inlet duct and/or the outer air outlet duct.

In some embodiments of the present application, at least one of the air inlet and the air outlet is disposed on a side surface of the box.

In some embodiments of the present application, the air inlet and the air outlet are both disposed on the back surface of the box body.

In some embodiments of the present application, the air inlet and the air outlet are both provided with a temperature sensor.

In some embodiments of the present application, the cartridge includes a top plate, a bottom plate, a back plate, and two opposing lateral side plates forming a rectangular housing having a forward opening.

In some embodiments of the present application, a first partition plate, a second partition plate, and a third partition plate are disposed inside the cylinder; the first partition plate and the second partition plate are parallel to each other and are respectively arranged at two transverse sides, and a preset distance is reserved between the first partition plate and the transverse side plates; the third baffle is located perpendicularly first baffle with preset position department between the second baffle to form and be located the rear tune the room and be located the place ahead the room of thawing, the fresh air inlet with the exhaust vent all locates on the back plate.

In some embodiments of the present application, an air duct outer plate is disposed between the first partition plate and the transverse side plate, and the air duct outer plate and the first partition plate and the second partition plate form a first partition air duct and a second partition air duct, respectively.

In some embodiments of the present application, the second air hole is formed in the first partition and the second partition at a position corresponding to the tuning chamber; and a plurality of the second air holes are vertically arranged into an air hole row, and the air hole row is positioned at a position close to the rear plate.

Compared with the prior art, the radio frequency thawing refrigerator provided by the embodiment of the invention has the beneficial effects that:

the air cooling circulation channel is arranged among the box body, the tuning chamber and the unfreezing chamber, most of heat (90%) in the tuning chamber and the unfreezing chamber can be taken out of the refrigerator, and the rest of heat (10%) can be processed by the refrigerator refrigerating system, so that the temperature in the whole refrigerator system is stable, the unfreezing process can be smoothly carried out, and the normal work of the refrigerator can be maintained. In addition, air is fed from the side where the tuner of the tuning chamber is located, and air is discharged from the side of the capacitor, so that heat at the capacitor with larger heat productivity can be dissipated more quickly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic front view of an RF thawing refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a back side structure of the RF thawing refrigerator according to the embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of the remaining portion of the RF thawing refrigerator according to the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the RF thawing apparatus;

FIG. 5 is a schematic diagram of a rear view configuration of a tuning module;

FIG. 6 is a schematic diagram of the internal structure of the tuning module;

FIG. 7 is a schematic diagram of a heat dissipation path of the tuner module during operation;

FIG. 8 is a schematic diagram of a back side structure of a tuning module;

fig. 9 is a schematic diagram of the arrangement positions of the power amplifier module and the isolation box;

FIG. 10 is an enlarged view at A in FIG. 3;

FIG. 11 is an enlarged view at B in FIG. 2;

FIG. 12 is a schematic view of the positions of the air inlet and the air outlet in another embodiment;

fig. 13 is a schematic diagram one of the arrangement positions of the power amplifier module;

FIG. 14 is a schematic diagram of a second installation position of the power amplifier module;

fig. 15 is a schematic diagram of the arrangement position of the power amplifier module;

fig. 16 is a schematic diagram of the arrangement position of the power amplifier module;

fig. 17 is a schematic diagram of a setting position of the power amplifier module;

fig. 18 is a schematic diagram six of the arrangement position of the power amplifier module;

FIG. 19 is an enlarged view at C of FIG. 3;

FIG. 20 is a rear view of the isolation box;

FIG. 21 is an exploded view of the isolation box with the first housing removed;

FIG. 22 is a side view of the mounting tray, the heat sink fins and the heat sink fan;

fig. 23 is a schematic bottom structure view of a heat sink fin;

in the figure, the position of the upper end of the main shaft,

10. a refrigerator;

100. a box body; 101. an air inlet; 102. an air outlet; 110. a refrigerating chamber; 120. a freezing chamber; 130. a press bin; 1401. an outer air inlet duct; 1402. an outgoing air duct; 150. an isolation box; 1501. installing a tray; 1502. a first housing; 1503. a second housing; 1504. loading a plate box; 1505. heat dissipation fins; 1506. mounting grooves; 1507. a heat dissipation air hole; 1508. a heat dissipation gap; 1509. a wind hole; 1601. an air intake fan; 1602; an air outlet fan;

200. a radio frequency thawing device; 210. a tuning module; 211. a barrel; 2111. a first separator; 2112. a second separator; 2113. a third partition plate; 2114. an air duct outer plate; 2115. a cable connection terminal; 212. a door body; 213. a tuner; 214. a tuning chamber; 2140. a second air hole; 2141. an air inlet hole; 2142. an air outlet; 215. a thawing chamber; 2150. a first air hole; 2161. a first interlayer air duct; 2162. a second interlayer air duct; 217. a capacitor; 220. a power amplifier module; 221. a radio frequency power supply; 222. a power amplifier unit; 223. an MCU unit;

300. a heat radiation fan; 400. a master control box; 410. a main control board; 420. and (4) master control power supply.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Fig. 1 is a schematic front structural view of a refrigerator according to an embodiment of the present invention, in which all external door bodies of the refrigerator are removed to show a compartment structure in a refrigerator body; FIG. 2 is a schematic view of a rear structure of the refrigerator shown in FIG. 1; fig. 3 is a schematic structural view of the internal structure of the remaining portion of the refrigerator shown in fig. 1.

Referring to fig. 1 to 3, a refrigerator 10 may include a cabinet 100, a door, and a radio frequency thawing device 200 for thawing food materials. The cabinet 100 is sequentially distributed with a refrigerating chamber 110 and a freezing chamber 120 along a vertical direction thereof, and a pressing chamber 130 near a bottom of the freezing chamber 120. Doors (not shown) are coupled to the cabinet 100 to open and close the refrigerating chamber 110 and the freezing chamber 120, respectively.

Specifically, referring to fig. 4, the radio frequency thawing apparatus 200 may include a tuning module 210 and a power amplifier module 220 connected by a coaxial cable 230, after the power amplifier module 220 receives an external start signal, the generated electromagnetic wave is transmitted to the tuning module 210 by the coaxial cable, and the tuning module 210 transmits a radio frequency signal with a certain frequency (preferably, 40.68MHz) to the frozen food material to achieve thawing of the frozen food material.

Referring to fig. 4-6, the tuning module 210 may include a barrel 211, a door 212, and a tuner 213.

Referring to fig. 1, the cylinder 211 is disposed in the refrigerating chamber 110, preferably, at a lower portion of the inside of the refrigerating chamber 110, the cylinder 211 may be fixed in the refrigerating chamber 110 by interference fit, lap joint, or snap joint, and at least a portion of a wall surface of the cylinder 211 is made of a metal material.

Referring to fig. 6, the inside of the cylinder 211 defines a tuning chamber 214 and a thawing chamber 215 having a front opening, the tuning chamber 214 being used for placing the tuner 213, and the thawing chamber 215 being used for placing the object to be processed. The tuning chamber 214 and the thawing chamber 215 are isolated from the refrigerating chamber 110, and a first partition air duct 2161 and a second partition air duct 2162 are respectively arranged at two sides of the tuning chamber 214 to communicate with the thawing chamber 215. The tuning chamber 214 has an air inlet hole 2141 and an air outlet hole 2142.

Referring to fig. 2 and 10, the box 100 is provided with at least one air inlet 101 and one air outlet 102 at a position corresponding to the tuning chamber 214 in the horizontal height, the air inlet 101 extends inward to form an outer air inlet duct 1401 communicated with the air inlet hole 2141, and the air outlet 102 extends inward to form an outer air outlet duct 1402 communicated with the air outlet hole 2142. Further, temperature sensors (not shown) may be disposed at the air inlet 101 and the air outlet 102.

Referring to fig. 4, a door 212 may be provided at a forward opening of the thawing chamber 215 to open or close the thawing chamber 215. The door 212 may be installed with the cylinder 211 by an appropriate method, such as a left-open door, a right-open door, an up-open door, or a down-open door.

Referring to fig. 7, which is a schematic diagram of a heat dissipation path of the tuning module 210 during operation, the flow path of the external wind sequentially includes: the air conditioner comprises an air inlet 101, an outer air inlet duct 1401, an air inlet hole 2141, a tuning chamber 214, a first interlayer air duct 2161, a thawing chamber 215, a second interlayer air duct 2162, a tuning chamber 214, an air outlet hole 2142, an outer air duct 1402 and an air outlet 102. In the air flow circulation process, most of heat (90%) in the tuning chamber 214 and the thawing chamber 215 can be taken out of the refrigerator, and the rest of heat (10%) can be processed by the refrigerator refrigeration system, so that the temperature in the whole refrigerator system is stable, and the thawing process can be smoothly carried out and the normal operation of the refrigerator can be maintained.

In some embodiments, referring to fig. 6, the preferred implementation of the communication between the tuning chamber 214 and the thawing chamber 215 through the first and

second partition ducts

2161, 2162 is: the cylinder 211 may include a top plate, a bottom plate, a rear plate and two opposite lateral side plates forming a rectangular housing having a front opening, and the housing is preferably made of metal. The cylinder 211 is further provided therein with a first partition 2111, a second partition 2112, and a third partition 2113. The first partition 2111 and the second partition 2112 are disposed parallel to each other at both lateral sides, respectively, and have a certain distance from the lateral side plates. The third partition 2113 is vertically provided between the first partition 2111 and the second partition 2112 at a predetermined position to form the tuning chamber 214 having a volume ratio of about 1/4 and the thawing chamber 215 having a volume ratio of about 3/4 between the first partition 2111 and the second partition 2112. Referring to fig. 7, an outer plate 2114 is disposed outside the first partition 2111 and the second partition 2112 (the outer plate 2114 on the second partition 2112 side is omitted in fig. 6), so as to form a first partition air channel 2161 and a second partition air channel 2162 at two sides of the tuning chamber 214 and the thawing chamber 215. A plurality of first air holes 2150 are formed on both side walls of the thawing chamber 215 (corresponding to the first partition 2111 and the second partition 2112 of the thawing chamber 215), and a plurality of second air holes 2140 are formed on both side walls of the tuning chamber 214 (corresponding to the first partition 2111 and the second partition 2112 of the tuning chamber 214). Preferably, the plurality of first air holes 2150 are arranged in an orderly manner in rows and columns at equal intervals, the air hole row is located at the middle of the length direction of the thawing chamber 215, the ratio of the width of the air hole row to the height of the thawing chamber 215 (i.e., the height of the first partition 2111 or the second partition 2112) is about 1/2, and the ratio of the length of the air hole row to the length of the thawing chamber 215 is about 1/2. Preferably, the second air holes 2140 are vertically arranged in an air hole array, the air hole array is located at a position close to the air inlet hole 2141 and the air outlet hole 2142, and it can be seen from the figure that the air inlet hole 2141 and the air outlet hole 2142 are located on the rear plate of the cylinder 211, i.e. the air hole array is located at a side close to the rear plate. The arrangement of the air holes is beneficial to ensuring that the air flow smoothly circulates in the thawing chamber 215 and the tuning chamber 214, so that as much heat as possible is taken away, and the heat dissipation effect is improved.

In some embodiments, at least one fan is disposed within outer air intake duct 1401 and/or outer air duct 1402 to facilitate accelerating the circulation of air to facilitate heat dissipation. Specifically, referring to fig. 5 and 10, an air inlet fan 1601 and an air outlet fan 1602 are respectively disposed in the outer air inlet duct 1401 and the outer air outlet duct 1402. Further, referring to fig. 8, in fig. 8, the air inlet fan 1601 and the air outlet fan 1602 are moved to the sides of the air inlet hole 2141 and the air outlet hole 2142, and it can be seen that the air inlet hole 2141 and the air outlet hole 2142 are circular hole arrays formed by arranging a plurality of small holes in a multi-row and multi-column manner. The shape of the outer shell of the air inlet fan 1601 and the air outlet fan 1602 is square, the size of the two fans is the same, and the diameter of the circular hole array is equal to or slightly smaller than the side length of the fans. Similarly, the air inlet 2141 and the air outlet 2142 may also be square or other hole arrays, and the size of the hole array may be equal to or slightly smaller than that of the fan. The back of the cylinder 211 is further provided with a cable connection terminal 2115 for inserting the coaxial cable 230.

In some embodiments, referring to fig. 6, the tuning module 210 further includes a capacitor 217, and the tuner 213 and the capacitor 217 are respectively disposed at two sides of the tuning chamber 214. The air inlet 2141 is disposed at a position corresponding to the tuner 213, and the air outlet 2142 is disposed at a position corresponding to the capacitor 217. In actual operation, the capacitor 217 in the tuning chamber 214 generates a larger amount of heat, which corresponds to the air outlet 2142, so that the heat at the capacitor 217 can be dissipated more quickly.

In some embodiments, referring to fig. 5 and 6, the horizontal height of the air outlet hole 2142 is greater than the horizontal height of the air inlet hole 2141. Since the hot air tends to rise, the air outlet 2142 is formed at a higher position, which is advantageous for faster discharge of the hot air and speeding up of heat dissipation circulation.

In some embodiments, referring to fig. 2 and 11, the air inlet 101 and the air outlet 102 are disposed on the back of the box 100 and have the same horizontal height. In the view of fig. 2, the inlet 101 is located on the left side, and the outlet 102 is located on the right side, so that the left and right positions of the inlet 101 and the outlet 102 can be interchanged.

In some embodiments, referring to fig. 12, the air inlets 101 and the air outlets 102 may be located at different levels in the same vertical direction, i.e. the level of the air outlets 102 is greater than that of the air inlets 101 as shown in fig. 12. Or, the horizontal height of the air inlet 101 is set to be greater than the horizontal height of the air outlet 102, that is, the up-down positions of the air inlet 101 and the air outlet 102 can be interchanged.

In some embodiments, at least one of the intake opening 101 and the exhaust opening 102 may be disposed at a side of the cabinet 100. That is, one of the air inlet 101 and the air outlet 102 is provided on a side surface (left side surface or right side surface) of the case 100, and the other is provided on the back surface of the case 100; alternatively, the air inlet 101 and the air outlet 102 are both disposed on the side of the box 100, and both may be disposed on the same side or on different sides. In any of the above cases, the horizontal heights of the inlet 101 and the outlet 102 may be the same or different.

Since the air inlet 101 is the same as the air inlet hole 2141 through the outer air inlet duct 1401, the air outlet 102 is communicated with the air outlet hole 2142 through the outer air inlet duct 1402, and the outer air inlet duct 1401 and the outer air outlet duct 1402 are formed by pipes capable of being bent freely, that is, the arrangement positions of the air inlet 101 and the air outlet 102 do not substantially affect the implementation of the above-mentioned scheme, so that the arrangement positions of the air inlet 101 and the air outlet 102 can be freely arranged according to actual requirements, and the above examples are only some preferred embodiments, and do not constitute a limitation to the present application.

Referring to fig. 9, the power amplifier module 220 may include a radio frequency power supply 221, a power amplifier unit 222, and an MCU unit 223. The rf power supply 221 is used for connecting an external power supply and supplying power to other components of the rf thawing apparatus 200, and belongs to a component with a large heating value.

The accessory box includes a main control box 400 and a separation box 150, the main control box 400 is provided at a position corresponding to the refrigerating compartment 110 in the cabinet (i.e., an upper half portion of the cabinet 100), and the separation box 150 is provided at a top portion of the cabinet 100. The main control box 400 and the isolation box 150 are each a chamber structure having a good isolation and sealing effect from other chambers (e.g., the refrigerating chamber 110, etc.). In the refrigerator of the prior art, the accessory box generally refers to only the main control box 400, which is a chamber for placing electrical components such as the main control board 410 and the main control power supply 420 for controlling the whole refrigerator, and the chamber has better sealing and isolating performance, so the main control box 400 can be fully utilized, and the design and modification cost is reduced.

For the position arrangement of the components of the power amplifier module 220, at least the following preferred embodiments are possible:

referring to fig. 13, the rf power supply 221, the power amplifier unit 222 and the MCU unit 223 are all disposed in the isolation box 150, and the rf power supply 221, the power amplifier unit 222 and the MCU unit 223 may be disposed on the same circuit board or disposed on different circuit boards, and the different circuit boards are connected by a communication line. Furthermore, a heat dissipation fan 300 may be further disposed at the isolation box 150, and the speed of the heat dissipation fan 300 is adjustable. In the arrangement mode, the power amplifier module is integrally arranged in the isolation box 150 positioned at the top of the box body 100, so that on one hand, the power amplifier module is far away from and isolates the compression refrigeration system (the press bin 130), the explosion risk is effectively reduced, and the safety of the refrigerator is improved; on the other hand, the heat dissipation fan 300 is used as a component with larger heat productivity, and is beneficial to heat dissipation of the radio frequency power supply 221; in yet another aspect, the space occupied within and near the thawing chamber 215 can be reduced.

Referring to fig. 14, the rf power supply 221 is disposed in the isolation box 150, and the power amplifier unit 222 and the MCU unit 223 are disposed in the main control box 400. The power amplifier unit 222 and the main control board 400 may be disposed on the same circuit board or disposed on different circuit boards, the different circuit boards are connected by a communication line, and the MCU 223 is separated from other control units of the main control board 400.

Referring to fig. 15, the rf power supply 221, the power amplifier unit 222, the MCU unit 223 and the main control board 400 may be disposed in the main control box 400, and the main control box 400 is further disposed with a heat dissipation fan 300. This arrangement is suitable for the case where it is inconvenient to additionally provide the insulation box 150 at the top of the refrigerator, and is advantageous for reducing the design cost.

Referring to fig. 16, the rf power supply 221, the power amplifier unit 222, the MCU unit 223 and the main control board 400 may be disposed in the isolation box 150, and the isolation box 150 is further disposed with a heat dissipation fan 300. In this embodiment, there may be various preferred ways to design the circuit boards of the components, for example, as shown in fig. 16, the rf power supply 221, the power amplifier unit 222, and the MCU unit 223 are all disposed on a circuit board together with the main control board 400; or, as shown in fig. 17, the rf power supply 221 is disposed on a separate circuit board, and the power amplifier unit 222 and the main control board 400 are disposed on the same circuit board; alternatively, as shown in fig. 18, the rf power supply 221 and the main control power supply 420 are disposed on the same circuit board, the rf power supply board can be disconnected and controlled by a relay or other switching circuit such as MOSFET, and the power amplifier unit 222 and the main control board 400 are disposed on the same circuit board.

In the above embodiments, the connections between the components and the circuit boards are prior art, and thus the connections are omitted.

In some embodiments, referring to fig. 19-23, the isolation box 150 includes a mounting tray 1501, a first housing 1502, a second housing 1503, and a blade box 1504.

The mounting tray 1501 includes a bottom plate and a side plate formed by extending a certain distance upward from the edge of the bottom plate, so as to form a tray-shaped mounting tray 1501, and the bottom plate and the side plate have a plurality of connecting structures fixedly connected or detachably connected with the box body 100.

Referring to fig. 23, the cassette 1504 includes a base plate, a side base plate formed by extending a certain distance downward from the edge of the base plate, and heat dissipation fins 1505 provided on the upper surface of the base plate. The lower surface of the base plate is provided with a plurality of electrical components or circuit board mounting grooves 1506, and the lower surface of the base plate and the side base plate are provided with mounting structures, so that the board mounting box 1504 can be covered at the middle part of the bottom plate of the mounting tray 1501.

Referring to fig. 21, the heat dissipation fan 300 is provided on the mounting tray 1501 at one side (right side in the view of fig. 21) of the cassette 1504. Two heat dissipating air holes 1507 are provided in parallel on the side plate of the mounting tray 1501 corresponding to the other side (left side in the view of fig. 21) of the board cassette 1504. Except the side corresponding to the heat dissipation fan 300 (the right side in the view of fig. 21) on the side substrate of the board mounting box 1504, the rest of the side substrate is provided with heat dissipation notches 1508, wind enters the board mounting box 1504 from the left heat dissipation wind hole 1507 and the left heat dissipation notch 1508, and heat generated by the circuit board in the board mounting box 1504 is dissipated from the front heat dissipation notches 1508 and the rear heat dissipation notches 1508 and then dissipated by the right heat dissipation fan 300.

Referring to fig. 21, when the second casing 1503 is depicted in fig. 21, the second casing 1503 includes an upper plate, a left plate, a front plate, and a rear plate, and encloses a rectangular casing with a bottom opening and a right opening, the rectangular casing is covered on the board-loading box 1504, a certain distance is provided between the upper plate and the heat dissipation fins 1505, and the right opening corresponds to the heat dissipation fan 300. The bottom of left side board corresponds position department with heat dissipation wind hole 1507 to and the bottom of preceding curb plate and posterior lateral plate all is equipped with heat dissipation opening 1508, and is covered with wind hole 1509 of arranging in order on the left side board.

Referring to fig. 19-20, when the first casing 1502 is illustrated in fig. 20, the first casing 1502 includes an upper plate, a left side plate, a right side plate and a rear side plate, and encloses a rectangular casing with an open bottom and an open front, and covers the second casing 1503 and the heat dissipation fan 300, and a certain distance is provided between the upper plate of the first casing 1502 and the upper plate of the second casing 1503.

In some embodiments, the inner wall surface of the isolation box 150 (the inner wall surface of the first housing 1502) may be provided with a layer of thermally conductive material, for example, may be coated with a thermally conductive paste. In addition, some wall surfaces of the mounting tray 1501, the first case 1502, the second case 1503 and the board mounting box 1504 may be coated with thermal conductive glue according to actual heat dissipation requirements.

To sum up, compared with the prior art, the radio frequency thawing refrigerator provided by the invention at least has the following beneficial effects:

firstly, an air cooling circulation channel is arranged among the box body 100, the tuning chamber 214 and the thawing chamber 215, most of heat (90%) in the tuning chamber 214 and the thawing chamber 215 can be taken out of the refrigerator, and the rest of heat (10%) can be processed by a refrigeration system of the refrigerator, so that the temperature in the whole refrigerator system is stable, the thawing process can be ensured to be carried out smoothly, and the normal work of the refrigerator can be maintained.

Secondly, the tuning module 210 and the radio frequency power supply 221 of the radio frequency thawing device are far away from and isolated from the compression refrigeration system (the pressing machine bin 130), so that the explosion risk is effectively reduced, and the safety of the refrigerator is improved.

Thirdly, the power amplifier module 220 with larger heating value (especially the radio frequency power supply 221) is arranged in the independent isolation box 150 positioned at the top of the refrigerator, which is beneficial to the heat dissipation of the power amplifier module 220 and can reduce the space occupied inside the unfreezing chamber 215 and the space nearby the unfreezing chamber.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A radio frequency thawing refrigerator comprises a refrigerator body, a refrigerator door and a radio frequency thawing device; the refrigerator body is sequentially provided with a refrigerating chamber, a freezing chamber and a press bin close to the bottom of the freezing chamber along the vertical direction of the refrigerator body, and the refrigerator door is used for opening and closing the refrigerating chamber and the freezing chamber;

the radio frequency unfreezing device is characterized by comprising a tuning module;

the tuning module comprises a cylinder, a door body, a tuner and a capacitor;

2. The radio frequency defrosting refrigerator according to claim 1, wherein a plurality of first air holes are opened on two side walls of the defrosting chamber to communicate with the interlayer air duct, and a plurality of second air holes are opened on two side walls of the tuning chamber to communicate with the interlayer air duct.

3. The radio frequency defrosting refrigerator of claim 1 wherein at least one fan is disposed within the outer air inlet duct and/or the outer air outlet duct.

4. The radio frequency defrosting refrigerator of claim 1 wherein at least one of the air inlet and the air outlet is disposed on a side surface of the cabinet.

5. The radio frequency defrosting refrigerator of claim 1 wherein the air inlet and the air outlet are both disposed on a back side of the cabinet.

6. The radio frequency defrosting refrigerator of claim 1 wherein the air inlet and the air outlet are each provided with a temperature sensor.

7. The radio frequency defrosting refrigerator of claim 2 wherein the cartridge comprises a top panel, a bottom panel, a back panel and two opposing lateral side panels forming a rectangular enclosure having a forward opening.

8. The radio frequency defrosting refrigerator of claim 7 wherein the inside of the cartridge body is provided with a first partition, a second partition and a third partition; the first partition plate and the second partition plate are parallel to each other and are respectively arranged at two transverse sides, and a preset distance is reserved between the first partition plate and the transverse side plates; the third baffle is located perpendicularly first baffle with preset position department between the second baffle to form and be located the rear tune the room and be located the place ahead the room of thawing, the fresh air inlet with the exhaust vent all locates on the back plate.

9. The radio frequency defrosting refrigerator according to claim 8, wherein an outer air duct plate is disposed between the first partition plate and the transverse side plate, and the outer air duct plate and the first partition plate and the second partition plate form a first partition air duct and a second partition air duct, respectively.

10. The radio frequency defrosting refrigerator of claim 9 wherein the second vent is provided on the first and second partitions at a location corresponding to the tuning chamber; and a plurality of the second air holes are vertically arranged into an air hole row, and the air hole row is positioned at a position close to the rear plate.