WO2023005289A1 - 加热方法及冷藏冷冻装置 - Google Patents
加热方法及冷藏冷冻装置 Download PDFInfo
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- WO2023005289A1 WO2023005289A1 PCT/CN2022/088793 CN2022088793W WO2023005289A1 WO 2023005289 A1 WO2023005289 A1 WO 2023005289A1 CN 2022088793 W CN2022088793 W CN 2022088793W WO 2023005289 A1 WO2023005289 A1 WO 2023005289A1
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- Prior art keywords
- heating
- heating unit
- unit
- electromagnetic wave
- storage compartment
- Prior art date
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 329
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000007710 freezing Methods 0.000 title claims abstract description 26
- 230000008014 freezing Effects 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 38
- 238000003860 storage Methods 0.000 claims description 30
- 230000003993 interaction Effects 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 22
- 235000013305 food Nutrition 0.000 description 19
- 230000008859 change Effects 0.000 description 12
- 238000010257 thawing Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
- F25D31/005—Combined cooling and heating devices
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/365—Thawing subsequent to freezing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/46—Dielectric heating
- H05B6/48—Circuits
- H05B6/50—Circuits for monitoring or control
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/46—Dielectric heating
- H05B6/62—Apparatus for specific applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/68—Circuits for monitoring or control
Definitions
- Thawing food through the electromagnetic wave heating unit is not only fast and efficient, but also has low loss of nutrients in the food.
- users generally input heating parameters for thawing, or automatically confirm heating parameters for thawing according to the food parameters (weight, temperature, size, etc.) detected by the detection device.
- the production cost of the heating unit is increased, and precise thawing of the food cannot be achieved, and the quality of the thawed food is poor, and multiple thawings are even required.
- the design requires a heating method that can realize precise heating of the object to be treated, prevent the object from being overheated, and a refrigerating and freezing device with a heating unit.
- a heating method comprising:
- the heating unit includes an electromagnetic wave generating module for generating electromagnetic wave signals, and a cavity capacitor electrically connected to the electromagnetic wave generating module for accommodating the object to be treated, wherein the heating unit under control Before the step, the heating method also includes:
- the initial heating parameters include at least one of heating power, and a termination threshold for terminating the heating procedure.
- the heating suspension condition includes opening the door corresponding to the storage compartment;
- the continuous heating condition includes that the door corresponding to the storage compartment is closed, and the door body of the heating unit does not open or close during the opening and closing process of the door.
- the heating method also includes:
- the heating unit is arranged in a storage compartment of a refrigerating and freezing device, wherein, before the step of controlling the heating unit to work, the heating method further includes:
- the heating method further includes:
- the heating instruction is received again.
- a box body defining at least one storage compartment
- At least one box door for opening and closing the at least one storage compartment
- the present invention determines the opening and closing action of the door of the refrigerating and freezing device and/or the door of the heating unit, supplies power to the heating unit, activates the interactive unit, suspends or terminates the thawing program, not only does not need to increase the sensing device, but the overall This not only reduces the production cost and energy consumption of the refrigerating and freezing device, but also effectively reduces or even avoids the leakage of electromagnetic waves, eliminates adverse effects on the health of users, and improves user experience.
- FIG. 1 is a schematic structural diagram of a heating unit according to an embodiment of the present invention.
- Fig. 2 is a schematic circuit diagram of the impedance matching module in Fig. 1;
- Fig. 3 is a schematic cross-sectional view of a refrigerator-freezer according to an embodiment of the present invention.
- FIG. 4 is a schematic flow chart of a heating method according to an embodiment of the present invention.
- Fig. 7 is a schematic flowchart of determining initial heating parameters according to the configuration of the impedance matching module
- FIG. 1 is a schematic structural view of a heating unit 100 according to an embodiment of the present invention.
- the heating unit 100 may include a cavity capacitor 110 , an electromagnetic wave generating module 120 and a controller 140 .
- the cavity capacitor 110 may further include a door 112 for closing the access opening of the cavity 111 to reduce leakage of electromagnetic waves.
- the processing unit can be configured to control the heating unit 100 to heat the object to be treated 150; when the heating pause condition is met, record the current heating parameters of the heating unit 100, and control the heating unit 100 to stop working; , control the heating unit 100 to continue working according to the recorded heating parameters.
- the termination threshold may be the total heating time, the change threshold of the dielectric coefficient, and the like.
- the heating unit 100 may also include a directional coupler connected in series between the cavity capacitor 110 and the electromagnetic wave generating module 120 for monitoring the reverse wave power returning to the electromagnetic wave generating module 120 in real time.
- the storage unit may store a pre-configured comparison table, which records the correspondence between on-off combination numbers and initial heating parameters.
- the processing unit may be configured to match the corresponding initial heating parameters according to the on-off combination number that realizes the minimum reflected wave power according to a preset comparison table.
- FIG. 2 is a schematic circuit diagram of the impedance matching module 130 in FIG. 1 .
- the impedance matching module 130 may include a first matching unit 131 connected in series between the electromagnetic wave generating module 120 and the cavity capacitor 110, and one end is electrically connected between the first matching unit 131 and the cavity capacitor 110, and the other end is grounded.
- the second matching unit 132 is a schematic circuit diagram of the impedance matching module 130 in FIG. 1 .
- the impedance matching module 130 may include a first matching unit 131 connected in series between the electromagnetic wave generating module 120 and the cavity capacitor 110, and one end is electrically connected between the first matching unit 131 and the cavity capacitor 110, and the other end is grounded.
- the second matching unit 132 is a schematic circuit diagram of the impedance matching module 130 in FIG. 1 .
- the impedance matching module 130 may include a first matching unit 131 connected in series between the electromagnetic wave generating module 120 and the cavity capacitor 110, and one end is electrically connected between the first matching unit 131 and the
- the first matching unit 131 and the second matching unit 132 can respectively include a plurality of matching branches connected in parallel, and each matching branch includes a fixed-value capacitor and a switch, so as to make the circuit simple while improving the impedance matching module 130. reliability and adjustment range.
- the capacitance values of the fixed capacitors of the first matching unit 131 and the second matching unit 132 may not be equal.
- the processing unit can control the electromagnetic wave generating module 120 to generate an electromagnetic wave signal with preset initial power, adjust the frequency of the electromagnetic wave signal, and determine the electromagnetic wave signal that realizes the minimum reflected wave power returning to the electromagnetic wave generating module 120
- the initial heating parameter is determined according to the frequency of the electromagnetic wave signal with the smallest reflected wave power.
- Fig. 3 is a schematic cross-sectional view of a refrigerator-freezer 200 according to an embodiment of the present invention.
- the present invention also provides a refrigerating and freezing device 200 .
- the refrigerating and freezing apparatus 200 may include a box body 210 defining at least one storage compartment, a box door for opening and closing the at least one storage compartment, a refrigeration system for providing cold energy to the storage compartment, and a controller 140 .
- the cavity capacitor 110 of the heating unit 100 can be set in a storage compartment; a part of the controller 140 can be set in the cavity capacitor 110, and is mainly used to control the electromagnetic wave generating module 120, the impedance matching module 130, etc.
- the other part is arranged in the compressor compartment or the top of the box body 210, and is mainly used to control the work of the refrigeration system.
- At least one storage compartment may include a refrigerating compartment 211 and a freezing compartment 212 disposed below the refrigerating compartment 211 .
- At least one door may include a refrigerator door 221 for opening and closing the refrigerator compartment 211 and a freezer door 222 for opening and closing the freezer compartment 212 .
- the cavity capacitor 110 can be disposed in the freezer compartment 212 to facilitate the user to pick and place the object 150 to be processed.
- the processing unit can be further configured to open and close the door 112 of the heating unit 100 after the heating unit 100 suspends heating, and control the heating unit 100 to terminate the heating program, that is, to control the electromagnetic wave generating module 120 to stop working, so as to prevent the user from taking it out for processing.
- the cavity is heated to damage the electromagnetic wave generating module 120.
- the processing unit can be configured to activate the interaction unit 230 after the freezer door 222 is closed if the door body 112 opens and closes during the opening and closing process of the freezer door 222 , and then receive heating instructions, so as to save power and reduce the waiting time of users.
- the processing unit can be configured to supply power to the heating unit 100 when the freezer door 222 is opened, so as to save power and start heating quickly.
- the processing unit is further configured to stop supplying power to the heating unit 100 when the freezing door 222 is closed and no heating instruction is received within a preset standby time, so as to save electric energy.
- the processing unit can be configured to control the heating unit 100 to terminate the heating program when the heating completion condition is satisfied, and to receive the heating instruction again when the object 150 to be treated is taken out, so as to prevent waiting
- the processed object 150 is repeatedly heated.
- the condition for completing the heating can be that the corresponding parameter reaches the termination threshold, for example, the heating time of the object 150 reaches the total heating time, and the change rate of the dielectric coefficient of the object 150 decreases to less than or equal to the change threshold.
- Step S402 Control the operation of the heating unit 100 to heat the object 150 to be treated.
- the heating method of the present invention records the latest heating parameters before the heating unit 100 stops heating, and continues to heat according to the recorded heating parameters after resuming heating, which not only simplifies the control process, but also avoids that the re-determined heating parameters cause the object to be processed 150 Being overheated, the heating time is shortened and unnecessary energy consumption is reduced.
- the suspending heating condition may include opening the chamber door corresponding to the cavity capacitance 110 .
- the condition for continuing heating may include that the box door corresponding to the cavity capacitor 110 is closed, and the door body 112 does not open or close during the opening and closing process of the box door. That is, during the heating process, if the box door corresponding to the cavity capacitor 110 is opened, the processing unit controls the electromagnetic wave generating module 120 to stop working, so as to reduce or even eliminate the influence of the electromagnetic wave on the user; if the box door corresponding to the cavity capacitor 110 is closed And during this process, the door 112 does not open or close, and the processing unit controls the electromagnetic wave generating module 120 to continue working according to the recorded heating parameters, so as to avoid the object 150 to be overheated.
- the heating method may also include the following steps:
- the heating unit 100 is controlled to terminate the heating process, so as to avoid heating the cavity and damaging the electromagnetic wave generating module 120 when the user takes out the object 150 to be processed.
- step S402 it may also include:
- the interaction unit 230 is activated after the door corresponding to the cavity capacitor 110 is closed, and then receives a heating command to save electric energy and reduce User wait time.
- step S402 it may also include:
- step S402 it may also include:
- the initial heating parameters of the heating unit 100 are determined according to the configuration of the impedance matching module 130 , so as to reduce sensing devices and realize precise heating of the object 150 to be treated.
- the initial heating parameters include at least one of heating power and a termination threshold for terminating the heating procedure.
- step S402 it may also include:
- the initial heating parameters of the heating unit 100 are determined according to the frequency of the electromagnetic wave signal, so as to reduce the number of sensing devices and realize precise heating of the object 150 to be treated.
- the initial heating parameters include at least one of heating power and a termination threshold for terminating the heating procedure.
- the termination threshold may be the total heating time, the change threshold of the dielectric coefficient, and the like.
- the heating unit 100 is controlled to stop working (wherein, the heating completion condition can be that the corresponding parameter reaches the termination threshold, for example, the heating time of the object to be treated 150 reaches the total heating time, the dielectric coefficient of the object to be processed 150 rate of change drops to less than or equal to the change threshold);
- the step of receiving the heating instruction again is performed to prevent the electromagnetic wave generating module 120 from overheating for a long time and prolong the electromagnetic wave generating module 120. service life.
- Step S502 Determine whether the freezer door 222 is open. If yes, execute step S504; if no, return to step S502.
- Step S510 activate the interaction unit 230.
- Step S514 Determine whether the activation time of the interaction unit 230 is greater than or equal to a preset standby time. If yes, execute step S516; if no, return to step S512.
- Step S516 Stop supplying power to the heating unit 100, and lock the interaction unit 230.
- Step S602 Determine the heating power and total heating time according to the configuration of the matching module 130 .
- Step S604 Control the electromagnetic wave generating module 120 to generate electromagnetic wave signals according to the heating power and the total heating time.
- Step S606 Determine whether the freezer door 222 is open. If yes, go to step S610; if not, go to step 608.
- Step 608 Control the electromagnetic wave generating module 120 to continue generating electromagnetic wave signals according to the heating power and the current remaining time. Execute step S616.
- Step S610 Record the current remaining time, and control the electromagnetic wave generating module 120 to stop working.
- Step S612 Determine whether the freezer door 222 is closed and whether the door body 112 does not open or close. If yes, execute step S614; if not, execute step S618.
- Step S614 Control the electromagnetic wave generating module 120 to generate electromagnetic wave signals according to the heating power and the remaining recording time. Execute step S616.
- Step S616 Determine whether the remaining time is zero. If yes, execute step S618; if no, return to step S606.
- Step S618 Control the electromagnetic wave generating module 120 to stop working.
- Step S620 Determine whether the door 112 is opened and the time interval from the previous stop of work is greater than or equal to a preset interval time. If yes, execute step S622; if no, return to step S620.
- Step S622 Stop supplying power to the heating unit 100 . Return to step S502.
- FIG. 7 is a schematic flowchart of determining initial heating parameters according to the configuration of the impedance matching module 130 .
- determining the initial heating parameters according to the configuration of the impedance matching module 130 may specifically include the following steps:
- Step S702 Control the electromagnetic wave generating module 120 to generate an electromagnetic wave signal with a preset initial power.
- the preset initial power may be 10-20W, such as 10W, 15W or 20W, so as to reduce the impact on the object 150 to be treated and save energy.
- Step S704 Adjust the configuration of the matching module 130, and determine the configuration of the matching module 130 that achieves the minimum reflected wave power.
- the reverse wave power can be measured by a directional coupler connected in series between the cavity capacitor 110 and the electromagnetic wave generating module 120 .
- Step S706 Determine the initial heating parameters according to the configuration of the matching module 130 that realizes the minimum reflected wave power.
- Fig. 8 is a schematic flowchart of determining initial heating parameters according to the frequency of electromagnetic wave signals.
- determining the initial heating parameters according to the frequency of the electromagnetic wave signal may specifically include the following steps:
- Step S802 Control the electromagnetic wave generating module 120 to generate an electromagnetic wave signal with a preset initial power.
- the preset initial power may be 10-20W, such as 10W, 15W or 20W, so as to reduce the impact on the object 150 to be treated and save energy.
- Step S804 Adjust the frequency of the electromagnetic wave signal, and determine the frequency of the electromagnetic wave signal that achieves the minimum reflected wave power.
- the reverse wave power can be measured by a directional coupler connected in series between the cavity capacitor 110 and the electromagnetic wave generating module 120 .
- Step S806 Determine initial heating parameters according to the frequency of the electromagnetic wave signal that achieves the minimum reflected wave power.
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Abstract
Description
Claims (10)
- 一种加热方法,包括:控制加热单元工作,对待处理物进行加热;若满足暂停加热条件,记录所述加热单元当前的加热参数,并控制所述加热单元停止工作;若满足继续加热条件,控制所述加热单元按照记录的加热参数继续工作。
- 根据权利要求1所述的加热方法,所述加热单元包括用于产生电磁波信号的电磁波发生模块、用于容置待处理物的腔体电容、以及串联在所述电磁波发生模块与所述腔体电容之间或并联在所述腔体电容的两端的阻抗匹配模块,其中,在所述控制加热单元工作的步骤之前,所述加热方法还包括:调节所述阻抗匹配模块的配置,减小返回所述电磁波发生模块的反射波功率;根据所述阻抗匹配模块的配置确定所述加热单元的初始加热参数;其中所述初始加热参数包括加热功率、和用于终止加热程序的终止阈值中的至少一个。
- 根据权利要求1所述的加热方法,所述加热单元包括用于产生电磁波信号的电磁波发生模块、和与所述电磁波发生模块电连接的用于容置待处理物的腔体电容,其中,在所述控制加热单元工作的步骤之前,所述加热方法还包括:调节所述电磁波信号的频率,减小返回所述电磁波发生模块的反射波功率;根据所述电磁波信号的频率确定所述加热单元的初始加热参数;其中所述初始加热参数包括加热功率、和用于终止加热程序的终止阈值中的至少一个。
- 根据权利要求1所述的加热方法,所述加热单元设置于冷藏冷冻装置的一个储物间室内,其中所述暂停加热条件包括所述储物间室对应的箱门打开;所述继续加热条件包括所述储物间室对应的箱门关闭、且在所述箱门的开闭过程中所述加热单元的门体未发生开闭动作。
- 根据权利要求4所述的加热方法,还包括:若所述加热单元暂停加热后,所述加热单元的门体发生开闭动作,控制所述加热单元终止加热程序。
- 根据权利要求1所述的加热方法,所述加热单元设置于冷藏冷冻装置的一个储物间室内,且所述冷藏冷冻装置的一个箱门设置有交互单元,其中,在所述控制加热单元工作的步骤之前,所述加热方法还包括:若在所述储物间室对应的箱门的开闭过程中,所述加热单元的门体发生开闭动作,在所述储物间室对应的箱门关闭后激活所述交互单元,以接收加热指令。
- 根据权利要求1所述的加热方法,所述加热单元设置于冷藏冷冻装置的一个储物间室内,其中,在所述控制加热单元工作的步骤之前,所述加热方法还包括:若所述储物间室对应的箱门打开,向所述加热单元供电;若所述储物间室对应的箱门关闭预设待机时间内未收到加热指令,停止向所述加热单元供电。
- 根据权利要求1所述的加热方法,在所述控制加热单元工作的步骤之后还包括:若满足完成加热条件,控制所述加热单元终止加热程序;若待处理物被取出,再次接收加热指令。
- 根据权利要求8所述的加热方法,其中若所述加热单元的门体打开,判断待处理物被取出;和/或在满足完成加热条件预设间隔时间后,执行所述若待处理物被取出,再次接收加热指令的步骤。
- 一种冷藏冷冻装置,包括:箱体,限定有至少一个储物间室;至少一个箱门,用于开闭所述至少一个储物间室;加热单元,用于对待处理物进行加热;以及控制器,配置为用于执行权利要求1-9中任一所述的加热方法。
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US18/580,209 US20240318903A1 (en) | 2021-07-28 | 2022-04-24 | Heating method, and refrigerating and freezing apparatus |
JP2024504217A JP2024527895A (ja) | 2021-07-28 | 2022-04-24 | 加熱方法及び冷蔵冷凍装置 |
EP22847907.7A EP4354058A4 (en) | 2021-07-28 | 2022-04-24 | HEATING METHODS AND COOLING AND FREEZING DEVICES |
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CN202110859060.9 | 2021-07-28 | ||
CN202110859060.9A CN115682615A (zh) | 2021-07-28 | 2021-07-28 | 加热方法及冷藏冷冻装置 |
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EP (1) | EP4354058A4 (zh) |
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