CN219515185U - Radio frequency thawing apparatus and refrigerator - Google Patents

Abstract

The utility model belongs to the technical field of refrigerators, and particularly relates to a radio frequency thawing device and a refrigerator. The utility model provides a radio frequency thawing device, which comprises: a housing assembly for containing food; the tuning plate is arranged in the box body assembly and is used for being electrically connected with the radio frequency generation assembly; and the polar plate is arranged in the box body assembly, is electrically connected with the tuning plate and is used for radiating radio frequency energy into the box body assembly under the control of the radio frequency generation assembly so as to defrost food in the box body assembly, and is elliptical. In the radio frequency thawing device provided by the embodiment of the utility model, as the contour line of the polar plate is in smooth transition, namely, the contour line of the polar plate has no corner, the radio frequency energy can be uniformly generated on the polar plate and can not be gathered at the corner, thereby avoiding the occurrence of the situation of locally gathering heat of the polar plate to a great extent and improving the radiating effect of the polar plate.

Description

Radio frequency thawing apparatus and refrigerator

Technical Field

The utility model belongs to the technical field of refrigerators, and particularly relates to a radio frequency thawing device and a refrigerator.

Background

During storage, the food is frozen to maintain quality and prevent spoilage, however frozen food is thawed prior to processing or consumption. The radio frequency thawing technology has the advantages of high thawing rate, large penetration depth, uniform heating and the like, has been increasingly valued in the industry, and a radio frequency thawing device is added into a plurality of refrigerators to thaw frozen foods, so that the multifunctional requirements of the refrigerators are met.

In the related art, the radio frequency thawing module comprises a radio frequency generating component, a polar plate and the like, the radio frequency generating component is used for generating radio frequency signals, the polar plate radiates radio frequency energy under the control of the radio frequency generating component so as to thaw food in the food material chamber, however, the polar plate is easy to locally collect heat in the process of radiating the radio frequency energy, so that heat dissipation is difficult.

Disclosure of Invention

The utility model aims to at least solve the technical problem that the polar plate of the current radio frequency thawing device is difficult to dissipate heat to a certain extent. Therefore, the utility model provides a radio frequency thawing device and a refrigerator.

In a first aspect, an embodiment of the present utility model provides a radio frequency thawing device, including:

a housing assembly for containing food;

the tuning plate is arranged in the box body assembly and is used for being electrically connected with the radio frequency generation assembly;

and the polar plate is arranged in the box body assembly, is electrically connected with the tuning plate and is used for radiating radio frequency energy into the box body assembly under the control of the radio frequency generation assembly so as to defrost food in the box body assembly, and is elliptical.

In the radio frequency thawing device provided by the embodiment of the utility model, the box body assembly can be used for placing food, the tuning plate and the polar plate are both arranged in the box body assembly, the tuning plate is electrically connected with the radio frequency generation assembly, and the polar plate is electrically connected with the tuning plate, so that the polar plate can radiate radio frequency energy into the box body assembly under the control of the radio frequency generation assembly to thaw the food in the box body assembly.

In some embodiments, the long axis of the plate is disposed along the width of the case assembly and the short axis of the plate is disposed along the length of the case assembly.

In some embodiments, the length of the long axis of the pole plate is 5/10 to 8/10 of the width of the tank assembly.

In some embodiments, the length of the minor axis of the plate is 1/2 to 4/5 of the length of the major axis.

In some embodiments, the box assembly comprises a barrel assembly and a drawer assembly, the barrel assembly is provided with a defrosting cavity and a tuning cavity which are independent of each other, the taking opening is arranged on the barrel assembly and communicated with the tuning cavity, the drawer assembly is arranged in the tuning cavity in a sliding manner and can slide in or out of the barrel assembly from the taking opening, the drawer assembly is used for containing food, and the polar plate and the tuning plate are arranged in the defrosting cavity.

In some embodiments, the pole plate is disposed below the housing assembly.

In some embodiments, the rf thawing apparatus further comprises a support bracket disposed within the thawing chamber, on which the pole plate is mounted.

In some embodiments, a first clamping part is arranged on the support bracket, a second clamping part is arranged on the polar plate, and the first clamping part is clamped with the second clamping part to fix the polar plate.

In some embodiments, one of the first clamping portion and the second clamping portion is a clamping hole, the other one of the first clamping portion and the second clamping portion comprises a first clamping section and a second clamping section, and under the condition that the second clamping portion is a clamping hole, the first clamping portion comprises a first clamping section and a second clamping section, one end of the first clamping section is connected with the support bracket, the other end of the first clamping section is connected with the second clamping section, the first clamping section is arranged in the clamping hole in a penetrating mode, and the second clamping section is clamped with one side, away from the support bracket, of the polar plate.

In some embodiments, the support bracket includes a fixing portion on which the pole plate is mounted and a mounting portion on which the tuning plate is mounted, the fixing portion and the mounting portion being integrally formed.

In a second aspect, based on the radio frequency thawing device above, an embodiment of the present utility model further provides a refrigerator, including the radio frequency thawing device above.

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 are not described here again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a block diagram of the components of a radio frequency thawing device;

fig. 2 is a schematic diagram showing an internal structure of the radio frequency thawing device;

fig. 3 is a schematic diagram showing the overall structure of the radio frequency thawing device;

fig. 4 shows a perspective view of the rf thawing apparatus of fig. 3;

fig. 5 shows a partial structural view of a refrigerator;

fig. 6 shows a side sectional view of a refrigerator;

fig. 7 shows a partial enlarged view at a in fig. 6.

Reference numerals:

the radio frequency thawing device comprises a 10 a-box body assembly, a 11-barrel body assembly, a 11 a-tuning cavity, a 11 b-thawing cavity, a 12-drawer assembly, a 14-support bracket, a 141-fixing part, a 143-mounting part, a 143 a-first clamping part, a 143 b-first clamping section, a 143 c-second clamping section, a 15-tuning plate, a 16-polar plate, a 161-second clamping part, a 100-refrigerator, a 20-main body, a 21-mounting cavity, a 41-side wall, a 41 a-first side wall, a 41 b-second side wall, a 42-heat dissipation channel, a 43-heat dissipation fan, a 44-wind flow accelerator, a 45-support bracket, a 45 a-fixing part, a 45 b-support part, a 46-air inlet, a 47-air outlet, a 19-radio frequency generating assembly, a 19 a-power module, a 19 b-control module, a 19 c-power amplification module, a 19 d-detection circuit, a 19 e-power amplification circuit and a 19 f-signal source.

The refrigerator comprises a refrigerator body, a 10-radio frequency thawing device, an 11 a-tuning cavity, an 11 b-thawing cavity, a 20-main body, a 21-mounting cavity, a 41-side wall, a 41 a-first side wall, a 41 b-second side wall, a 42-heat dissipation channel, a 43-heat dissipation fan, a 44-wind flow accelerator, a 45-bracket, a 45 a-fixing part, a 45 b-supporting part, a 46-air inlet and a 47-air outlet.

Detailed Description

The following description of the embodiments of the present utility model 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 embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all the directional indicators in the embodiments of the present utility model 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 utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; 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 above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. 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 considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, in the radio frequency thawing device 10 and the refrigerator 100 provided by the embodiment of the utility model, the radio frequency thawing device 10 is disposed in the refrigerator 100 for rapidly thawing food frozen in the refrigerator 100, thereby meeting the multifunctional requirements of the refrigerator 100. As shown in fig. 1, the radio frequency thawing device 10 includes a radio frequency generating assembly 19 and a tuning module, the radio frequency generating assembly 19 includes a power module 19a, a power amplification module 19c and a control module 19b, the power module 19a, the power amplification module 19c and the control module 19b are all electrically connected, the power module 19a is used for supplying power to the power amplification module 19c and the control module 19b, the power amplification module 19c is used for generating an initial signal with a set frequency, and the control module 19b is used for controlling the circuits in the power module 19a and the power amplification module 19c to work; when the output power of the power amplifier module 19c needs to be adjusted, the control module 19b calculates an adjusting voltage control command based on an internal algorithm and sends the adjusting voltage control command to the power module 19a, and the power module 19a adjusts the voltage to change the output voltage of the power module 19 a.

The power amplification module 19c comprises a signal source 19f, a power amplification circuit 19e and a detection circuit 19d, wherein the signal source 19f is used for generating an initial signal with a set frequency (40.68 MHz), the power amplification circuit 19e is used for amplifying the power of the initial signal, enhancing the power of the initial signal and outputting a power amplification signal; the detection circuit 19d is used for detecting the output power of the power amplification signal and the reflected power reflected by the tuning module, and feeding back the reflected power to the control module 19b.

The tuning module comprises a tuning plate 15, a tuning inductor 17 and a polar plate 16, wherein the tuning inductor 17 is electrically connected with the polar plate 16 and is electrically connected with the power amplification module 19c through the tuning plate 15, and after receiving a power amplification signal, the tuning module radiates radio frequency energy to food to quickly defrost the food.

In the related art, the plate is mounted on the support bracket, however, the plate is liable to locally collect heat during the process of radiating radio frequency energy, resulting in difficulty in heat dissipation. In order to solve the problems in the related art, the contour line of the polar plate is smoothly transited, namely, the contour line of the polar plate has no corner, so that the radio frequency energy can be uniformly generated on the polar plate and can not be gathered at the corner, thereby avoiding the occurrence of the situation that the polar plate locally gathers heat to a great extent and improving the radiating effect of the polar plate.

The utility model is described below with reference to specific embodiments in conjunction with the accompanying drawings:

referring to fig. 2, an embodiment of the present utility model discloses a radio frequency thawing device 10, which includes a housing assembly 10a, a tuning plate 15, and a pole plate 16. The rf thawing apparatus 10 is used for thawing frozen food.

The box assembly 10a is a basic component of the rf thawing device 10 of the present utility model, and the box assembly 10a may provide a mounting base for other at least partial components of the rf thawing device 10 and may also serve the purpose of protecting the other at least partial components of the rf thawing device 10. The tuning plate 15 and the pole plate 16 are both mounted within the housing assembly 10a, and the housing assembly 10a also has a chamber for receiving food, which can be placed in the housing assembly 10a for thawing.

The tuning plate 15 is electrically connected to the rf generating assembly, and the rf generating assembly is configured to generate an rf wave, and after the tuning plate 15 is electrically connected to the rf generating assembly, the rf wave generated by the rf generating assembly can be received and sent to the polar plate 16, and the polar plate 16 radiates the received rf energy into the box assembly 10a to defrost food in the box assembly 10 a. Specifically, after the articles to be thawed, such as meat, are placed in the case assembly 10a, the meat can absorb the radio frequency waves radiated from the pole plate 16 into the case assembly 10a, and then heat is generated, thereby thawing the articles to be thawed. The contour of the plate 16 is a continuous closed line, and transitions smoothly at the line turns, so that the contour of the plate 16 has no corners, and thus the rf energy can be distributed more uniformly at the edges of the plate 16, without energy accumulation.

When the outer contour of the polar plate 16 has corners, after the rf wave is transmitted to the polar plate 16, energy is easily accumulated at the corners of the polar plate 16, so that heat at the corners is high, and heat dissipation is difficult.

In some embodiments, the plate 16 is elliptical. Specifically, the contour line of the polar plate 16 may include a straight line, and two ends of the straight line are respectively connected with one arc line and the other arc line to form a closed line; the contour line of the polar plate 16 may further include more than two straight lines, where the straight lines are connected through arc transition, for example, the corners of the polygonal shapes such as triangle, rectangle, etc. are all converted into arc transition, and the larger the arc of the arc, the less likely the rf energy is accumulated at the edge of the polar plate 16, and in addition, the embodiment further includes oblong shape.

Referring to fig. 2-4, in some embodiments, the box assembly 10a includes a barrel assembly 11 and a drawer assembly 12, where the barrel assembly 11 is used as a radio frequency signal shielding structure, and can shield a radio frequency signal generated in the radio frequency thawing device 10, so as to avoid diffusing the radio frequency signal to the outside of the radio frequency thawing device 10, and cause injury to a human body, and ensure a radio frequency thawing effect of the radio frequency thawing device 10. Specifically, the barrel assembly 11 is provided with a thawing cavity 11b and a tuning cavity 11a which are independent from each other, a holding opening is formed in the barrel assembly 11, the holding opening is communicated with the tuning cavity 11a, and the drawer assembly 12 is slidably arranged in the tuning cavity 11a and can slide into or out of the barrel assembly 11 from the holding opening so as to realize opening or closing of the drawer. The drawer assembly 12 can be used for containing food, so when the food needs to be thawed, the drawer assembly 12 can be slid out of the holding opening, and after the food to be thawed is placed in the container, the drawer assembly 12 can be slid into the barrel assembly 11 from the holding opening.

The polar plate 16 and the tuning plate 15 are arranged in the defrosting cavity 11b, namely, the independent defrosting cavity 11b and tuning cavity 11a are arranged in the barrel assembly 11, so that the isolation of the tuning plate 15, the polar plate 16 and food is realized, and the damage of water vapor generated in the defrosting process of the food to the structures such as the tuning plate 15 and the polar plate 16 is avoided.

The plate 16 may be disposed in the case assembly 10a in various manners, for example, the plate 16 may be disposed above, below, behind or on both sides of the drawer assembly 12, so as to ensure that the radio frequency energy radiated by the plate 16 can act on the drawer assembly 12, thereby thawing the food in the drawer assembly 12, which is not limited in this embodiment of the present utility model.

For convenience in mounting the pole plate 16, the pole plate 16 is disposed below the drawer assembly 12 in this embodiment, that is, the defrosting chamber 11b for mounting the pole plate 16 is disposed at least partially below the tuning chamber 11a, and in order to make full use of the space of the case assembly 10a, the tuning chamber 11a is disposed at the upper portion of the case assembly 10a, and the partial defrosting chamber 11b is disposed at the lower portion of the case assembly 10 a.

Since the tuning plate 15 is further required to be disposed in the box assembly 10a, in order to further fully utilize the space of the box assembly 10a and make the structure in the box assembly 10a more compact, the tuning plate 15 may be disposed at a side portion of the tuning cavity 11a, that is, a portion of the thawing cavity 11b may be disposed at a side portion of the box assembly 10a for mounting the tuning plate 15. The polar plate 16 and the tuning plate 15 can be directly connected or can be connected through a connecting piece, so that the polar plate 16 and the tuning plate 15 can be electrically connected. Since the electrode plate 16 and the tuning plate 15 are not disposed at the same horizontal plane, the electrode plate 16 and the tuning plate 15 are connected by a connecting member for convenience in arranging the positions of the electrode plate 16 and the tuning plate 15, respectively.

In some embodiments, the long axis of the plate 16 is disposed along the width of the housing assembly 10a and the short axis of the plate 16 is disposed along the length of the housing assembly 10 a.

When the plate 16 is elliptical in shape, the major axis of the ellipse may be disposed along the width of the drawer assembly 12 and the minor axis may be disposed along the length of the drawer assembly 12 so that the rf energy radiated by the plate 16 may be more uniformly distributed to the bottom surface of the drawer assembly 12.

In some embodiments, the length of the long axis of the plate 16 is 5/10 to 8/10 of the width of the housing assembly 10 a. Namely, the length of the long axis of the polar plate 16 is 5/10-8/10 of the width of the bottom plate of the drawer assembly 12, so that the polar plate 16 can be arranged below the drawer assembly 12 in a larger area, and the uniformity of radio frequency energy radiation is improved.

In some embodiments, the length of the minor axis of the plate is 1/2 to 4/5 of the length of the major axis. The difference between the major and minor axes is not necessarily excessive, so that the pole plate 16 can be disposed under the drawer assembly 12 in a larger area, and uniformity of radio frequency energy radiation is improved.

In some embodiments, the rf thawing apparatus 10 further comprises a support bracket 14, the support bracket 14 being disposed within the thawing chamber 11b for securing the support plate 16. Any detachable connection mode, such as clamping connection, screwing connection, etc., can be selected between the polar plate 16 and the support bracket 14, and in order to facilitate the disassembly or assembly of the polar plate 16, the polar plate 16 and the support bracket 14 are connected in the clamping connection mode in this embodiment.

Specifically, the support bracket 14 is provided with a first clamping portion 143a, the polar plate 16 is provided with a second clamping portion 161, and the first clamping portion 143a and the second clamping portion 161 are clamped, so that the support bracket 14 can fix the polar plate 16, and one or more first clamping portions 143a and one or more second clamping portions 161 can be provided, which is not limited in this embodiment.

In some embodiments, one of the first and second clamping portions 143a, 161 is a clamping hole, and the other includes a first clamping section 143b and a second clamping section 143c. When the second clamping portion 161 is a clamping hole, the first clamping portion 143a includes a first clamping section 143b and a second clamping section 143c, one end of the first clamping section 143b is connected to the support bracket 14, the other end is connected to the second clamping section 143c, the first clamping section 143b is inserted into the clamping hole, and the second clamping section 143c is clamped with a side of the polar plate 16 away from the support bracket 14, so that the first clamping portion 143a is clamped with the second clamping portion 161.

Specifically, the clamping hole may be a circular hole, the first clamping section 143b and the second clamping section 143c may be cylindrical, the radius of the clamping hole is smaller than the radius of the second clamping section 143c and larger than the radius of the first clamping section 143b, and the second clamping section 143c may be made of elastic material, such as elastic rubber, so that when the first clamping section 143b and the second clamping section 143c are clamped, the second clamping section 143c may be pressed through the clamping hole first due to elastic deformation of the second clamping section 143c, and after the first clamping section 143b is inserted into the clamping hole, the second clamping section 143c is restored, and the clamping of the first clamping section 143b and the second clamping section 143c is realized under the limit of the second clamping section 143c, so that the polar plate 16 is fixed on the support bracket 14.

Of course, in other embodiments, the first clamping portion 143a may be a clamping hole, and the second clamping portion 161 includes a first clamping section 143b and a second clamping section 143c, which is not limited in this embodiment.

In some embodiments, tuning plate 15 may also be mounted to support bracket 14 such that tuning plate 15 and pole plate 16 are both mounted to support bracket 14, such that pre-assembly of tuning plate 15 and pole plate 16 may be accomplished. That is, when the radio frequency thawing device 10 is installed, the tuning plate 15, the polar plate 16 and the support bracket 14 can be preassembled together in advance, and then the preassembled whole is installed into the radio frequency thawing device 10 together, so that the installation difficulty of the tuning plate 15 and the polar plate 16 is reduced, the production efficiency is improved, and in the later maintenance work, the whole is also convenient to take out from the radio frequency thawing device 10 for maintenance.

Specifically, the support bracket 14 includes a fixing portion 141 and an installation portion 143, the pole plate 16 is installed on the fixing portion 141, the tuning plate 15 is installed on the installation portion 143, as can be seen from the foregoing, the pole plate 16 is disposed at the lower portion of the tuning cavity 11a, the tuning plate 15 is disposed at the side portion of the tuning cavity 11a, and accordingly, the fixing portion 141 is disposed at the lower portion of the tuning cavity 11a, and the installation portion 143 is disposed at the side portion of the tuning cavity 11a, that is, the fixing portion 141 and the installation portion 143 are disposed at an included angle. Specifically, in the present embodiment, the fixing portion 141 and the mounting portion 143 are vertically disposed.

The mounting portion 143 and the fixing portion 141 of the support bracket 14 may be integrally formed, or may be separately fabricated and assembled, which is not limited in the embodiment of the present utility model. In terms of productivity, the mounting portion 143 and the fixing portion 141 of the support bracket 14 are integrally formed, which improves productivity, and the mounting portion 143 and the fixing portion 141 of the support bracket 14 are manufactured by separate processes, which increases the number of assembling steps. In terms of production cost, a separate processing method is adopted for the mounting portion 143 and the fixing portion 141 of the support bracket 14, and it is necessary to provide a structure for assembly in the mounting portion 143 and the fixing portion 141 of the support bracket 14, respectively, which leads to an increase in production cost. From the viewpoint of support stability, the support bracket 14 is a structural member for fixing the tuning plate 15 and the pole plate 16, and it is necessary that the support bracket 14 has sufficient support stability, and the support stability of the support bracket 14 using the assembled structure is lower than that of the support bracket 14 using the integrated structure.

In the radio frequency thawing device 10 provided by the embodiment of the utility model, the box assembly 10a can be used for placing food, the tuning plate 15 and the polar plate 16 are both arranged in the box assembly 10a, the tuning plate 15 is electrically connected with the radio frequency generation assembly, and the polar plate 16 is electrically connected with the tuning plate 15, so that the polar plate 16 can radiate radio frequency energy into the box assembly 10a under the control of the radio frequency generation assembly to thaw the food in the box assembly 10a, and the contour line of the polar plate 16 is smoothly transited, namely, the contour line of the polar plate 16 has no corner, so that the radio frequency energy can be uniformly generated on the polar plate 16 and can not be gathered at the corner, thereby avoiding the occurrence of the situation that the polar plate 16 locally gathers heat, and improving the radiating effect of the polar plate 16.

Based on the same inventive concept, the embodiment of the present utility model further provides a refrigerator, and referring to fig. 5 to 7, the refrigerator 100 provided by the embodiment of the present utility model includes a main body 20 and a radio frequency thawing device 10. Wherein the main body 20 is a basic member of the refrigerator 100 of the present utility model, the main body 20 may provide a mounting basis for other at least partial components of the refrigerator 100, and may also serve the purpose of protecting the other at least partial components of the refrigerator 100. The main body 20 is provided with a mounting cavity 21, and the radio frequency thawing device 10 is arranged in the mounting cavity 21.

The radio frequency thawing device 10 and the mounting cavity 21 are provided with a gap, the tuning cavity 11a is provided with an air inlet 46 and an air outlet 47 which are communicated with the gap, so that air circulation is formed among the gap, the air inlet 46, the air outlet 47 and the thawing cavity 11b, and heat in the thawing cavity 11b can be continuously taken away by air in the flowing process, so that the temperature in the tuning cavity 11a is reduced, damage to a high Wen Duidiao tuning module is avoided to a certain extent, and the performance of the tuning module is ensured.

In some embodiments, the rf thawing device 10 has more than one sidewall 41, and the air inlet 46 and the air outlet 47 are both disposed on the sidewall 41 of the rf thawing device 10 to communicate with the gap between the rf thawing device 10 and the mounting cavity 21. Specifically, the air inlet 46 and the air outlet 47 may be disposed on the same side wall 41 of the rf thawing device 10, or may be disposed on different side walls 41, which is not limited in this embodiment.

Since the air inlet 46 and the air outlet 47 are commonly disposed on the same side wall 41 of the rf thawing device 10, that is, the air inlet 46 and the air outlet 47 are disposed in a coplanar manner, the heat discharged from the tuning cavity 11a is not completely dissipated, and then the heat is circulated into the tuning cavity 11a, resulting in lower heat dissipation efficiency.

Specifically, the rf thawing apparatus 10 has a first sidewall 41a and a second sidewall 41b, the air inlet 46 is disposed on the first sidewall 41a, and the air outlet 47 is disposed on the second sidewall 41 b. Of course, the first side wall 41a and the second side wall 41b have a gap with the installation cavity 21, and the space between the first side wall 41a and the installation cavity 21 and the space between the second side wall 41b and the installation cavity 21 are communicated, so that air circulation is formed between the air inlet 46, the air outlet 47, the gaps between the first side wall 41a and the second side wall 41b and the installation cavity 21, and heat dissipation is performed on the tuning cavity 11 a.

The first sidewall 41a and the second sidewall 41b may be disposed opposite to each other or may be disposed in a connecting manner, which is not limited in this embodiment. When the first sidewall 41a and the second sidewall 41b are connected, the first sidewall 41a and the second sidewall 41b are connected at an included angle, and specifically, the first sidewall 41a and the second sidewall 41b may be connected vertically.

In some embodiments, the number of the second side walls 41b may be two, and the two second side walls 41b are provided with the air outlets 47, so that two air circulation loops are formed, and the two air circulation loops radiate the heat of the tuning cavity 11a at the same time, thereby improving the heat radiation efficiency and enhancing the heat radiation effect. Of course, on the premise of ensuring the protection effect of the tuning cavity 11a on the tuning module, more air outlets 47 can be provided, so that more air circulation loops are formed, and the heat dissipation efficiency is improved.

The two second side walls 41b may be disposed opposite to each other, that is, the two second side walls 41b are disposed opposite to each other on both sides of the first side wall 41a, so as to achieve heat dissipation on both opposite sides of the tuning cavity 11 a. Specifically, the first side wall 41a may be a rear wall of the rf thawing apparatus 10, and the two second side walls 41b may be an upper wall and a lower wall of the rf thawing apparatus 10, respectively.

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 manufacture cold air, and a gap between the first side wall 41a and the installation cavity 21 is communicated with the heat dissipation channel 42, so that 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 to exchange heat, so that hot air in the tuning cavity 11a is discharged through the air outlet 47.

Namely, under the action of the heat dissipation fan 43, the hot air in the tuning cavity 11a is discharged from the air outlet 47, meanwhile, the cold air source blown by the heat dissipation fan 43 is continuously blown into the tuning cavity 11a, the temperature of the cold air is relatively low, more heat in the tuning cavity 11a can be taken away, the heat exchange efficiency is improved, and the discharge rate of the hot air in the tuning cavity 11a is greatly improved due to the fact that the flow rate of the cold air is high.

When the rf thawing device 10 works, the tuning module continuously generates heat, and the generated heat is discharged from the air outlet 47 and is dispersed into the gap between the rf thawing device 10 and the mounting cavity 21, but after the rf thawing device 10 works for a long time, the gap between the rf thawing device 10 and the mounting cavity 21 is filled with high-temperature gas, so that the tuning cavity 11a cannot be cooled, and the gap between the rf thawing device 10 and the mounting cavity 21 needs to be communicated with an external space, so that the heat discharged from the air outlet 47 can be dispersed to the outside, and the formation of high temperature around the rf thawing device 10 is avoided.

Specifically, since the air outlet 47 is provided on the second side wall 41b, the gap between the second side wall 41b and the installation cavity 21 communicates 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.

In some embodiments, the refrigerator 100 further includes a wind flow accelerator 44, where the wind flow accelerator 44 is disposed in the tuning cavity 11a and is used to guide the wind in the gap into the tuning cavity 11a, so that the wind flow accelerator 44 can increase the flow speed of the air in the tuning cavity 11a, and further make the heat in the tuning cavity 11a dissipate more quickly, and improve the heat dissipation efficiency.

Specifically, the wind flow accelerator 44 may be disposed near the air inlet 46, and the wind flow accelerator 44 may be a drainage fan, and under rotation of the drainage fan, wind in the gap may continuously and rapidly collect at the air inlet 46 and enter the tuning cavity 11 a.

In some embodiments, as described above, the first side wall 41a may be a rear wall of the rf thawing device 10, the two second side walls 41b may be an upper wall and a lower wall of the rf thawing device 10, respectively, and the upper wall, the lower wall and the rear wall all need to keep a gap with the installation cavity 21, so that the lower wall of the rf thawing device 10 may also keep a gap with the installation cavity 21, the refrigerator 100 further includes a bracket 45 disposed in the installation cavity 21, and the rf thawing device 10 is mounted on the bracket 45, so that a gap exists between the tuning cavity 11a and the installation cavity 21 under the supporting action of the bracket 45.

Specifically, the bracket 45 includes a resisting portion 45a and a supporting portion 45b, the rf thawing apparatus 10 is mounted on the resisting portion 45a, and the resisting portion 45a is supportingly disposed on the supporting portion 45b so that a lower wall of the rf thawing apparatus 10 maintains a gap with the mounting cavity 21.

In some embodiments, the refrigerator 100 may be a refrigerator, the main body 20 having a freezing chamber, a refrigerating chamber, and a temperature changing chamber, and the installation cavity 21 may be provided in any one of the freezing chamber, the refrigerating chamber, and the temperature changing chamber.

Specifically, the installation cavity 21 is provided in the refrigerator compartment, the installation cavity being surrounded by or by the refrigerator rear wall, the refrigerator bottom wall, and the refrigerator side wall 41 of the refrigerator compartment.

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 utility model. 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.

Claims (11)

1. A radio frequency thawing device, comprising:

a housing assembly for containing food;

the tuning plate is arranged in the box body assembly and is used for being electrically connected with the radio frequency generation assembly;

and the polar plate is arranged in the box body assembly, is electrically connected with the tuning plate and is used for radiating radio frequency energy into the box body assembly under the control of the radio frequency generation assembly so as to defrost food in the box body assembly, and is elliptical.

2. The rf thawing device as in claim 1, wherein a long axis of the plates is disposed along a width of the container assembly and a short axis of the plates is disposed along a length of the container assembly.

3. The rf thawing device as in claim 2, wherein the length of the long axis of the pole plate is 5/10-8/10 of the width of the container assembly.

4. A radio frequency thawing device according to claim 3, wherein the length of the short axis of the plate is 1/2-4/5 of the length of the long axis.

5. The rf thawing device according to any of claims 1-4, wherein the housing assembly comprises a barrel assembly having a thawing chamber and a tuning chamber that are independent of each other, wherein the barrel assembly has a pick-and-place port and communicates with the tuning chamber, and wherein the drawer assembly is slidably disposed within the tuning chamber and is slidably movable into and out of the barrel assembly from the pick-and-place port, wherein the drawer assembly is configured to receive food, and wherein the pole plate and the tuning plate are disposed within the thawing chamber.

6. The rf thawing device as in claim 5, wherein the pole plate is disposed below the tank assembly.

7. The rf thawing device as in claim 5, further comprising a support bracket disposed within the thawing chamber, wherein the pole plate is mounted to the support bracket.

8. The rf thawing device as defined in claim 7, wherein the support bracket is provided with a first clamping portion and the pole plate is provided with a second clamping portion, the first clamping portion being clamped with the second clamping portion to secure the pole plate.

9. The rf thawing device as defined in claim 8, wherein one of the first and second holding portions is a holding hole, the other includes a first holding section and a second holding section, and the first holding section is connected to the support bracket at one end thereof and connected to the second holding section at the other end thereof, the first holding section is inserted into the holding hole, and the second holding section is held by the pole plate at a side away from the support bracket.

10. The rf thawing device in accordance with claim 9, wherein the support bracket includes a fixed portion and a mounting portion, the pole plate is mounted to the fixed portion, the tuning plate is mounted to the mounting portion, and the fixed portion and the mounting portion are integrally formed.

11. A refrigerator comprising a radio frequency thawing device as claimed in any of claims 1-10.