CN215936177U - Structure for assisting radio frequency thawing by using system waste heat and radio frequency thawing equipment - Google Patents

Abstract

The utility model provides a structure for assisting radio frequency thawing by using system waste heat and radio frequency thawing equipment, which comprise a first shell, a food bin and a wind source, wherein one side inside the first shell is provided with a heat energy cavity with cavity through holes on two side surfaces, the other side inside the first shell is provided with a storage space, the food bin is arranged in the storage space in a drawable manner, the end surface of the food bin is provided with a bin through hole, the heat energy cavity is internally provided with heating equipment, one end of the first shell, which is close to the heat energy cavity, is provided with the wind source, the wind source can blow wind into the heat energy cavity and blow the wind into the food bin from the heat energy cavity when in work, the utility model adopts directional wind flow to blow the heat energy on the heating equipment to the food to be thawed again so as to assist in increasing the thawing efficiency, and efficiently utilizes the system waste heat generated by the radio frequency thawing to thaw the food, the integral unfreezing efficiency of the system is higher, and the unfreezing speed is higher.

Description

Structure for assisting radio frequency thawing by using system waste heat and radio frequency thawing equipment

Technical Field

The utility model relates to the field of refrigeration, freezing and storage, in particular to a structure for assisting radio frequency thawing by using system waste heat and radio frequency thawing equipment.

Background

Compared with the traditional unfreezing technology, the solid radio frequency unfreezing technology has the advantages of good uniformity, high time, safety, sanitation and the like; compared with microwave oven thawing, the method has the advantages of good uniformity, less nutrition loss, good quality feeling, lower batch cost, safer use and the like.

In the existing solid radio frequency thawing technology, the radio frequency power is converted into food heat energy, and meanwhile, the rest positions of the system can also generate heat energy.

Patent document CN111466508A discloses a radio frequency thawing apparatus, a refrigerator and a radio frequency thawing method, wherein the radio frequency thawing apparatus includes a control module, a thawing box, an adjustable inductance-capacitance module, a detection module, a power supply module and a radio frequency power supply module. The detection module detects the impedance matching state of the radio frequency output circuit in real time, and the control module adjusts the adjustable inductance-capacitance module in real time according to the impedance matching detection result, so that the radio frequency output circuit reaches the optimal matching state, but the design does not have the design of effectively utilizing waste heat dissipated in air, and the structure is unreasonable.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a structure for assisting radio frequency thawing by using system waste heat and radio frequency thawing equipment.

The structure for assisting radio frequency thawing by using the waste heat of the system comprises a first shell, a food bin and an air source;

one side of the interior of the first shell is provided with a heat energy cavity, two side surfaces of the heat energy cavity are provided with cavity through holes, the other side of the interior of the first shell is provided with a storage space, one end of the food bin is an operating end, and the other end of the food bin can be installed in the storage space in a drawable mode by operating the operating end;

a bin through hole is formed in the end face of the other end of the food bin, heating equipment is arranged in the heat energy cavity, and an air source is arranged at one end, close to the heat energy cavity, of the first shell;

when the wind source works, wind can be blown into the heat energy cavity from the cavity through hole on one side of the heat energy cavity, and blown out from the cavity through hole on the other side of the heat energy cavity and blown into the food bin through the bin through hole.

Preferably, the second shell is detachably mounted on the first shell, an accommodating space is formed in the second shell, the air source adopts a fan, and the fan is mounted in the accommodating space.

Preferably, the blowing direction of the fan is opposite to the cavity through hole, and the second shell opposite to the blowing direction of the fan is provided with an opening or a plurality of air inlet through holes.

Preferably, a plurality of said cavity through holes are arranged in a uniform or non-uniform manner at the side of the thermal energy cavity;

the plurality of bin through holes are respectively arranged on two sides of the thermal energy cavity in a uniform or non-uniform mode.

Preferably, the first housing is made of metal.

The utility model provides radio frequency unfreezing equipment which comprises a radio frequency power output module, a control unit power module, a switch switching module and a structure for assisting radio frequency unfreezing by using system waste heat, wherein the control unit power module is connected with the switch switching module;

the control unit power supply module is electrically connected with the radio frequency power output module and the switch switching module respectively;

the switch switching module is connected with the heating equipment.

Preferably, the radio frequency power output module comprises a radio frequency signal source module, a radio frequency power amplifier module and a radio frequency measurement module;

the frequency signal source module, the radio frequency power amplifier module and the radio frequency measurement module are sequentially connected, and the radio frequency measurement module is connected with the switch switching module.

Preferably, the control unit power module is electrically connected with the radio frequency power amplifier module.

Preferably, the switching module includes a controlled impedance unit and a fixed inductance unit connected to each other;

the controlled impedance unit comprises a plurality of adjustable inductance network units interconnected with switches, and the fixed inductance unit comprises one or more fixed inductances.

Preferably, the control unit power supply module comprises a microcontroller, a remote monitoring module and a UI interaction module;

and the microcontroller is respectively connected with the remote monitoring module and the UI interaction module.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, by adopting the directional wind current, the heat energy on the fixed inductor is blown to the food to be thawed again, so that the food is thawed by the radio frequency and is also subjected to heat convection heat, the thawing efficiency is increased in an auxiliary manner, the food thawing is performed by efficiently utilizing the system waste heat generated by the radio frequency thawing, the overall thawing efficiency of the system is higher, and the thawing speed is higher.

2. The system has the advantages of lower redundant heat, higher system efficiency, reduced local heating temperature and higher system reliability.

3. The food thawing machine can thaw food uniformly and quickly, and ensures good quality of the food to the maximum extent.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a thermal energy chamber according to the present invention;

FIG. 3 is a schematic view of the structure of the food compartment of the present invention;

FIG. 4 is a block diagram of the connections between the modules of the RF thawing apparatus of the present invention;

FIG. 5 is a schematic block diagram of a switch switching module of the RF thawing apparatus of the present invention;

FIG. 6 is a functional block diagram of the RF power output module of the RF thawing apparatus of the present invention;

FIG. 7 is a schematic structural diagram of the RF thawing apparatus of the present invention;

fig. 8 is an exploded view of the structure of the present invention that utilizes system waste heat to assist rf thawing.

The figures show that:

fan 1 cavity through hole 6

First housing 2 Chamber through hole 7

Second case 8 of heat generating equipment 3

Air inlet hole 9 of heat energy cavity 4

Food compartment 5

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

The utility model provides a structure for assisting radio frequency thawing by utilizing system waste heat, which comprises a first shell 2, a food bin 5 and an air source, wherein one side inside the first shell 2 is provided with a heat energy cavity 4 with cavity through holes 6 on two sides, the other side inside the first shell 2 is provided with a storage space, one end of the food bin 5 is an operation end, the operation end can be operated to install the other end of the food bin 5 in the storage space in a drawing way, the end surface of the other end of the food bin 5 is provided with a bin through hole 7, a heating device 3 is arranged in the heat energy cavity 4, one end of the first shell 2, which is close to the heat energy cavity 4, is provided with the air source, when the air source works, the air can be blown into the heat energy cavity 4 from the cavity through hole 6 on one side of the heat energy cavity 4 and blown into the food bin through hole 7 from the cavity through hole 6 on the other side of the heat energy cavity 4 In the chamber 5. The food waste heat energy is converted into the food heat energy through the radio frequency, the rest radio frequency energy becomes the heat energy which can be reused through the fixed inductor, the system waste heat generated by the heating equipment 3 is transmitted into the food bin 5 through the wind source in a convection and radiation mode through the heat energy cavity 4, and the food is subjected to the radio frequency thawing in the food bin 5 and the heat conduction thawing of the food is assisted.

In practical application, when food is heated by using the rf energy, a considerable portion of the rf energy cannot be absorbed by the food inevitably, and heat energy which cannot be utilized by the original design is generated, which not only causes energy waste, but also may cause system reliability problems due to local overheating. The heating device 3 in the utility model is preferably a fixed inductance unit which converts radio frequency energy into heat energy, the heat energy source cannot be completely converted into energy in food when the radio frequency is unfrozen, the fixed inductance unit is arranged in the switch switching module, the fixed inductance unit can absorb a large amount of radio frequency energy and convert the radio frequency energy into heat energy when the radio frequency is unfrozen and heated, the traditional scheme is that the heat energy is dissipated in the air through heat dissipation or natural cooling, the structure provided by the utility model can utilize the heat energy again to assist the radio frequency unfreezing, the structure energy utilization rate is higher, the unfreezing speed is higher, the system heating is controllable, and the reliability is higher.

It should be noted that, in practical applications, the installation of the fixed inductance unit may be flexibly arranged according to an actual product, such as horizontally placing, and then vertically placing, and specifically, should be flexibly selected according to the size of the fixed inductance unit and the space inside the product, so as to meet the requirements of product miniaturization and space reasonable layout.

The second shell 8 is detachably mounted on the first shell 2, the second shell 8 is preferably mounted on the first shell 2 through detachable connecting pieces such as screws, a containing space is arranged on the second shell 8, the wind source adopts a fan 1, the fan 1 is mounted in the containing space, the blowing direction of the fan 1 is right opposite to the cavity through hole 6, the second shell 8 opposite to the air inlet direction of the fan 1 is an opening or is provided with a plurality of air inlet through holes 9, as shown in figure 8, the fan 1 generates directional wind flow, blows heat energy on a fixed inductor to food to be thawed once again, allows the food to be thawed by radio frequency and simultaneously receives heat transmitted by heat convection and radiation, thereby assisting in increasing the thawing efficiency, realizes the gas flow in the heat energy cavity 4 by arranging the fan 1, and further allows the system waste heat generated by the heating equipment 3 to enter the food bin 5, in a variant, the fan 1 is replaced by an external wind source, such as a certain wind channel in a wind system.

It should be noted that the first casing 2 of the present invention preferably encloses the whole structure of the thermal energy cavity 4 and the food compartment 5, so as to prevent the thermal energy from leaking. The heating device 3 may be an independent inductor, or any heating component fixed in the thermal energy cavity 4.

In actual arrangement, the cavity through holes 6 are arranged on the side surface of the heat energy cavity 4 in an even or uneven manner, and the bin through holes 7 are arranged on the two side surfaces of the heat energy cavity 4 in an even or uneven manner, as shown in fig. 1, 2 and 3, the design of the ventilation holes is provided, when in actual arrangement, the specific arrangement positions of the cavity through holes 6 and the bin through holes 7 are based on the principle that the directional air flow generated by the fan 1 can be effectively realized, the cavity through holes 6 and the bin through holes 7 preferably face the fan 1, so that the air blown out by the fan 1 can smoothly bring the heat generated by the heating equipment 3 into the food bin 5, the air resistance is reduced, the residual heat energy is ensured to be efficiently transmitted into the food bin 5, and the utilization of the residual heat is realized.

Further, food bin 5 is as the load-bearing platform that food unfreezes, and the rear end is seted up bin through-hole 7 and is favorable to the wind to flow through, and food bin 5 is preferably drawer structure to the design has the step, prevents that the liquid from flowing out after unfreezing.

The proper air channel is designed, the wind resistance of the system is reduced, the high efficiency of heat recycling is ensured, the temperature of the system is reduced while the waste heat is utilized to assist the radio frequency thawing, the safe and reliable work of the system is ensured, under the condition that no fan is used, when other heat transfer devices are utilized in the system, the same function is achieved, and the reasonable expansion of the utility model claim is considered; when the heating point is not limited to a fixed inductor, the system achieves the same function by using other redundant heat, and the system is considered to be a reasonable expansion of the claims of the utility model.

The utility model also provides radio frequency thawing equipment which comprises a radio frequency power output module, a control unit power supply module, a switch switching module and the structure for assisting in the radio frequency thawing by utilizing the system waste heat, wherein as shown in fig. 4, the control unit power supply module is respectively and electrically connected with the radio frequency power output module and the switch switching module, and the switch switching module is connected with the heating equipment 3.

Specifically, the radio frequency power output module comprises a radio frequency signal source module, a radio frequency power amplifier module and a radio frequency measurement module, wherein the radio frequency signal source module, the radio frequency power amplifier module and the radio frequency measurement module are sequentially connected, and the radio frequency measurement module is connected with the switch switching module.

Fig. 6 shows an implementation manner of the rf power output module, wherein the rf signal source module can output an rf oscillation signal, the rf control signal output by the control unit power source module controls an output state of the signal, the gate voltage output by the control unit power source module provides a variable voltage for the gate of the rf power amplifier module, the control unit power source module provides a variable drain voltage three for the rf power amplifier module, the rf power amplifier module can output an rf oscillation power with adjustable power, the rf measurement module detects an rf parameter at an output end of the power amplifier, specifically an amplitude and a phase of S11, and a magnitude of the output and reflected powers, the control unit power source module knows an impedance state of the tunable radiation device through the rf measurement parameter provided by the rf power output module, and the rf power output by the rf power amplifier module is detected by the rf measurement module and then output to the switch switching module.

As shown in fig. 5, the rf power output from the rf power output module must pass through the switch module before reaching the radiating component, i.e. the heat generating device 3. The switch switching module is a passive adjustable part, a switch switching control signal output by the control unit power supply module switches the multi-way switch to search the optimal matching state of the output end of the radio frequency power output module, and the switch switching control signal has the function of compensating impedance difference caused by different food types, sizes, positions, shapes and temperatures and realizing the whole-course automatic compensation of the change of the food. The first shell 2 is preferably made of metal, and the metal cavity is used for preventing radio frequency energy from leaking and can play a role in bearing food.

The control unit power module is electrically connected with the radio frequency power amplifier module and comprises a control unit and a power module, wherein grid voltage which can be output by the control unit is variable voltage provided for a grid of the radio frequency power amplifier module, the power module is variable drain voltage provided for the radio frequency power amplifier module, and the radio frequency power amplifier module can output radio frequency oscillation power with adjustable power.

Further, the switch switching module includes a controlled impedance unit and a fixed inductance unit that are connected to each other, the controlled impedance unit includes a plurality of adjustable inductance network units that are interconnected with the switch, and the fixed inductance unit includes one or more fixed inductances. The switch switching module is connected with the heating device 3, the switch switching module is a passive adjustable part, a multi-way switch is switched by a switch switching control signal output by the control unit to find the optimal matching state of the output end of the radio frequency power output module, and the switch switching module is used for compensating impedance difference caused by different food types, sizes, positions, shapes and temperatures and realizing automatic compensation of food change in the whole process.

In a simple system for thawing by using radio frequency energy, when food is heated by using the radio frequency energy, a considerable part of the radio frequency energy cannot be absorbed by the food inevitably, and heat energy which cannot be utilized by the original design is generated, so that not only is energy wasted, but also the system reliability problem may be caused by local overheating.

As shown in fig. 4, the connection block diagram between the modules of the radio frequency thawing apparatus is that the power supply module converts the commercial power into a plurality of stably output power supplies, and is responsible for supplying power to the radio frequency power output module, the control unit, the switch switching module and the heat dissipation system; the heat dissipation system is the air flow heat dissipation realized by the fan 1 and other devices. The control unit is a control center of the whole system and comprises a microcontroller, a remote monitoring module and a UI interaction module, wherein the microcontroller is respectively connected with the remote monitoring module and the UI interaction module, and the control unit is used for finishing all functions of state monitoring, data analysis, function control, UI interface man-machine interaction, remote monitoring and the like of the system; the radio frequency power output module can convert the direct current electric energy into radio frequency oscillation energy; the heating device 3 is responsible for efficiently and uniformly transmitting the radio frequency oscillation energy to the food to realize rapid and uniform unfreezing and heating; the heat dissipation system is responsible for dissipating heat for the power supply module, the radio frequency power output module and the switch switching module.

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

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. A structure for assisting radio frequency thawing by using system waste heat is characterized by comprising a first shell (2), a food bin (5) and an air source;

one side inside the first shell (2) is provided with a heat energy cavity (4) with two side surfaces provided with cavity through holes (6), the other side inside the first shell (2) is provided with a storage space, one end of the food bin (5) is an operation end, and the other end of the food bin (5) can be installed in the storage space in a drawing mode by operating the operation end;

a bin through hole (7) is formed in the end face of the other end of the food bin (5), a heating device (3) is arranged in the heat energy cavity (4), and an air source is arranged at one end, close to the heat energy cavity (4), of the first shell (2);

when the wind source works, wind can be blown into the heat energy cavity (4) from the cavity through hole (6) on one side of the heat energy cavity (4) and blown out from the cavity through hole (6) on the other side of the heat energy cavity (4) and blown into the food bin (5) through the bin through hole (7).

2. The structure for assisting in radio frequency thawing by using system waste heat according to claim 1, wherein a second shell (8) is detachably mounted on the first shell (2), a containing space is arranged on the second shell (8), the wind source adopts a fan (1), and the fan (1) is mounted in the containing space.

3. The structure for assisting in radio frequency thawing by using system waste heat according to claim 2, wherein the blowing direction of the fan (1) is opposite to the cavity through hole (6), and the second shell (8) opposite to the blowing direction of the fan (1) is open or provided with a plurality of air inlet through holes (9).

4. The structure for assisting rf thawing by using system residual heat according to claim 1, wherein a plurality of said cavity through holes (6) are arranged on the side of the thermal energy cavity (4) in a uniform or non-uniform manner;

the plurality of bin through holes (7) are respectively arranged on two sides of the thermal energy cavity (4) in a uniform or non-uniform manner.

5. The structure for assisting radio frequency thawing by using system waste heat according to claim 1, wherein the first shell (2) is made of metal.

6. A radio frequency thawing device is characterized by comprising a radio frequency power output module, a control unit power supply module, a switch switching module and the structure for assisting in radio frequency thawing by using system waste heat, wherein the structure comprises a power supply module, a power supply module and a switch switching module;

the control unit power supply module is electrically connected with the radio frequency power output module and the switch switching module respectively;

the switch switching module is connected with the heating equipment (3).

7. The radio frequency thawing apparatus of claim 6, wherein said radio frequency power output module comprises a radio frequency signal source module, a radio frequency power amplifier module and a radio frequency measurement module;

the frequency signal source module, the radio frequency power amplifier module and the radio frequency measurement module are sequentially connected, and the radio frequency measurement module is connected with the switch switching module.

8. The radio frequency thawing apparatus of claim 7, wherein said control unit power module is electrically connected to said radio frequency power amplifier module.

9. The radio frequency thawing apparatus of claim 6, wherein the switching module comprises a controlled impedance unit and a fixed inductance unit connected to each other;

the controlled impedance unit comprises a plurality of adjustable inductance network units interconnected with switches, and the fixed inductance unit comprises one or more fixed inductances.

10. The radio frequency thawing apparatus of claim 6, wherein said control unit power module comprises a microcontroller, a remote monitoring module and a UI interaction module;

and the microcontroller is respectively connected with the remote monitoring module and the UI interaction module.

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