WO2023066000A1 - Electromagnetic wave processing apparatus - Google Patents

Electromagnetic wave processing apparatus Download PDF

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Publication number
WO2023066000A1
WO2023066000A1 PCT/CN2022/122245 CN2022122245W WO2023066000A1 WO 2023066000 A1 WO2023066000 A1 WO 2023066000A1 CN 2022122245 W CN2022122245 W CN 2022122245W WO 2023066000 A1 WO2023066000 A1 WO 2023066000A1
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WIPO (PCT)
Prior art keywords
electromagnetic wave
wave generating
processing device
resistor
gate
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PCT/CN2022/122245
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French (fr)
Chinese (zh)
Inventor
韩志强
李春阳
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青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Publication of WO2023066000A1 publication Critical patent/WO2023066000A1/en

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    • 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
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power

Definitions

  • the invention relates to kitchen utensils, in particular to an electromagnetic wave processing device.
  • the prior art generally uses an electromagnetic wave processing device to thaw food.
  • An object of the present invention is to overcome at least one technical defect in the prior art and provide an electromagnetic wave processing device with a higher safety factor.
  • a further object of the invention is to reduce production costs.
  • Another further object of the invention is to save energy.
  • an electromagnetic wave processing device comprising:
  • a cylinder defining a chamber for containing the material to be treated
  • At least one door body is configured such that when both are in an open state, the object to be treated can be taken out from the chamber or can be placed in the chamber;
  • An electromagnetic wave generating system at least partly disposed in or accessible to the barrel, to emit electromagnetic waves to the chamber to treat the object to be treated;
  • the protection circuit includes at least one logic gate connected in series with the electromagnetic wave generating system and configured to block the electromagnetic wave generating system when at least one of the at least one gate is in an open state.
  • the at least one logic gate includes an AND gate, and the AND gate has multiple input terminals and one output terminal; wherein,
  • One said input end and said output end of said AND gate are connected in series with said electromagnetic wave generating system;
  • the other at least one input end of the AND gate is configured such that at least one of the at least one gates is in an open state and at least one is at a low level.
  • the protection circuit also includes:
  • At least one linkage switch corresponding to at least one of the doors, and configured to be disconnected when the corresponding door is in a closed state and closed when the corresponding door is in an open state;
  • At least one first pull-up resistor is set so that one end is connected to a high level, and the other end is respectively electrically connected to at least one input end of the AND gate;
  • the at least one linkage switch is configured such that one end is grounded, and the other end is respectively connected between the at least one first pull-up resistor and the at least one input end.
  • the protection circuit further includes:
  • At least one linkage switch corresponding to at least one of the doors, and configured to be disconnected when the corresponding door is in a closed state and closed when the corresponding door is in an open state;
  • the first pull-up resistor is set so that one end is connected to a high level, and the other end is electrically connected to an input end of the AND gate;
  • the at least one linkage switch is arranged in series, and one end is grounded, and the other end is connected between the first pull-up resistor and the input end corresponding to the first pull-up resistor.
  • the electromagnetic wave generating system includes:
  • An electromagnetic wave generating module configured to generate an electromagnetic wave signal
  • a controller configured to be electrically connected to the electromagnetic wave generating module, and used to control the start and stop of the electromagnetic wave generating module;
  • the at least one logic gate is connected in series between the controller and the electromagnetic wave generating module.
  • the protection circuit also includes:
  • the first safety resistor is configured such that one end is grounded and the other end is connected between the controller and the at least one logic gate;
  • the second safety resistor is configured such that one end is grounded and the other end is connected between the at least one logic gate and the electromagnetic wave generating module.
  • the electromagnetic wave generating system includes:
  • An electromagnetic wave generating module configured to generate an electromagnetic wave signal
  • a power supply module configured to supply power to the electromagnetic wave generating module
  • control switch configured to conduct or block the circuit between the power supply module and the electromagnetic wave generating module
  • a controller configured to be electrically connected to the control switch, and used to control the on-off of the control switch
  • control switch is of the normally-off type
  • the at least one logic gate is connected in series between the controller and the control switch.
  • control switch is an electromagnetic relay; wherein
  • the switch part of the relay is connected in series between the power supply module and the electromagnetic wave generating module;
  • the at least one logic gate is connected in series between the controller and one end of the electromagnetic portion of the relay; and the protection circuit further includes:
  • a pull-down resistor configured to have one end connected to ground and the other end electrically connected to the other end of the electromagnetic portion of the relay.
  • the protection circuit also includes:
  • a PNP triode the emitter of which is electrically connected to one end of the electromagnetic part of the relay, the base is electrically connected to the output end of the at least one logic gate, and the collector is arranged to be grounded;
  • the second pull-up resistor is set so that one end is connected to a high level, and the other end is connected between the emitter of the triode and the electromagnetic part of the relay.
  • the electromagnetic wave processing device further includes:
  • the refrigeration system is used to provide refrigeration to the electromagnetic wave processing device.
  • the electromagnetic wave processing device of the present invention is provided with a protection circuit, which can block the electromagnetic wave generating system when the door is in an open state, thereby preventing electromagnetic wave leakage from damaging the user's health and other electrical devices around the chamber. Controlling the start and stop of the electromagnetic wave generating system has a higher safety factor, higher stability and reliability.
  • the present invention uses the AND door and the linkage switch reflecting the opening and closing state of the door body to turn on and off the electromagnetic wave generating system.
  • the structure is simple, stable and reliable, and the AND door can be connected in series with the electromagnetic wave generating system first, and then the electromagnetic wave generating system can be connected in series when the whole machine is assembled. It is connected with the linkage switch, which is convenient for modular production and applicable to different models, reducing the production cost.
  • the protection circuit of the present invention is configured to turn on or block the power supply from the power supply module to the electromagnetic wave generating module, which not only further improves the safety of the electromagnetic wave processing device, but also prevents the electromagnetic wave generating module from being in a standby state for a long time, avoiding unnecessary Expected power loss, saving energy.
  • Fig. 1 is a schematic structural diagram of an electromagnetic wave processing device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a protection circuit according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a protection circuit according to another embodiment of the present invention.
  • Fig. 4 is a schematic cross-sectional view of an electromagnetic wave processing device according to another embodiment of the present invention.
  • Fig. 1 is a schematic structural diagram of an electromagnetic wave processing device 100 according to an embodiment of the present invention.
  • the electromagnetic wave processing device 100 may include a cylinder body 110 , at least one door body, and an electromagnetic wave generating system.
  • at least one is one, two or more.
  • the barrel 110 may define a chamber 111 for containing the object 180 to be treated.
  • the cylinder body 110 may be provided with a pick-and-place opening communicating with the chamber 111, so that the to-be-processed object 180 can be picked and put.
  • One or more doors can be configured such that when all of them are in an open state, the object 180 to be processed can be taken out from the chamber 111 or can be placed in the chamber 111 .
  • the electromagnetic wave generating system may be at least partly disposed in or accessible to the cylinder 110 to emit electromagnetic waves into the cylinder 110 to treat the object 180 to be treated (for example, to heat).
  • the electromagnetic wave generating system may include an electromagnetic wave generating module 131 , a radiation antenna 132 electrically connected to the electromagnetic wave generating module 131 , a power supply module 133 for supplying power to the electromagnetic wave generating module 131 , and a controller 134 .
  • the electromagnetic wave generating module 131 can be configured to generate electromagnetic wave signals, and the radiation antenna 132 can be disposed in the barrel 110 to generate electromagnetic waves in the barrel 110 to process the object 180 in the barrel 110 .
  • the controller 134 can be configured to be electrically connected to the electromagnetic wave generating module 131 to control the start and stop of the electromagnetic wave generating module 131 and adjust the working parameters of the electromagnetic wave generating module 131 .
  • FIG. 2 is a schematic structure diagram of a protection circuit 140 according to an embodiment of the present invention (in FIGS. 2 and 3 , "IN” means “input”; “OUT” means “output”).
  • the electromagnetic wave processing device 100 may further include a protection circuit 140 to improve the safety performance of the electromagnetic wave processing device 100 .
  • the protection circuit 140 may include at least one logic gate. At least one logic gate can be connected in series with the electromagnetic wave generating system, and configured to block the electromagnetic wave generating system when at least one of the gates is in an open state, thereby preventing electromagnetic wave leakage from damaging the user's health and other electrical devices around the chamber 111. Compared with simply using the control method to control the start and stop of the electromagnetic wave generating system, the safety factor is higher, and it has higher stability and reliability.
  • the logic gates may include an AND gate N1.
  • the AND gate N1 can have multiple input terminals and one output terminal. When the inputs of multiple input terminals are high level, the output of the output terminal is high level; when the input of one or more of the multiple input terminals is low level Usually, the output of the output terminal is low level.
  • An input terminal and an output terminal of the AND gate N1 can be connected in series with the electromagnetic wave generating system, and at least one other input terminal is configured so that at least one of the gates is at a low level when at least one of the gates is in an open state, so that at least one of the gates A system that blocks electromagnetic wave generation when in an open state.
  • the protection circuit 140 may further include at least one linkage switch S1 and at least one first pull-up resistor R1.
  • At least one linkage switch S1 may correspond to at least one door body, and is configured to be turned off when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state.
  • the at least one first pull-up resistor R1 can be set so that one end is connected to a high level, and the other end is respectively electrically connected to at least one input end of the AND gate N1.
  • the at least one linkage switch S1 may be configured such that one end is grounded, and the other end is respectively connected between at least one first pull-up resistor R1 and at least one input end.
  • the number of the first pull-up resistor R1 and the input terminals of the AND gate N1 may be the same as the number of the linkage switch S1.
  • one end of the multiple first pull-up resistors R1 can be connected to a high level, and the other end is electrically connected to multiple input terminals of the AND gate N1, and the multiple linkage switches S1
  • One end can be grounded, and the other end can be respectively connected between a first pull-up resistor R1 and an input end of the AND gate N1.
  • the protection circuit 140 may further include at least one linkage switch S1 and a first pull-up resistor R1.
  • At least one linkage switch S1 may correspond to at least one door body, and is configured to be turned off when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state.
  • the first pull-up resistor R1 can be set so that one end is connected to a high level, and the other end is electrically connected to an input end of the AND gate N1.
  • At least one linkage switch S1 can be set in series, and one end is grounded, and the other end is connected between the first pull-up resistor R1 and the corresponding input end of the first pull-up resistor R1.
  • the multiple linkage switches S1 may be connected in series between the ground point and the connection point between the first pull-up resistor R1 and the input terminal.
  • the number of linkage switches S1 may be the same as the number of door bodies.
  • the linkage switch S1 may also be one, which is turned off when all the doors are in the closed state, and closed when any door is in the open state.
  • the logic gates of the protection circuit 140 can be connected in series between the controller 134 and the electromagnetic wave generating module 131 , so that when any door is opened, the controller 134 cannot send an activation command to the electromagnetic wave generating module 131 .
  • the protection circuit 140 may further include a first safety resistor R2 and a second safety resistor R3. Wherein, one end of the first safety resistor R2 can be set to be grounded, and the other end is connected between the controller 134 and all logic gates, so as to improve circuit safety and stability.
  • the second safety resistor R3 can be set so that one end is grounded, and the other end is connected between all logic gates and the electromagnetic wave generating module 131, so as to improve circuit safety and stability.
  • the electromagnetic wave generating system may further include a control switch K1 for turning on or blocking the circuit between the power supply module 133 and the electromagnetic wave generating module 131 .
  • the controller 134 may be configured to be electrically connected to the control switch K1 for controlling the on-off of the control switch K1.
  • the control switch K1 is normally off.
  • the logic gates of the protection circuit 140 can be connected in series between the controller 134 and the control switch K1, so that when any one of the gates is in an open state, the controller 134 cannot send an instruction to turn on the control switch K1.
  • FIG. 3 is a schematic structural diagram of a protection circuit 140 according to another embodiment of the present invention.
  • the control switch K1 can be an electromagnetic relay.
  • the switch part of the relay can be connected in series between the power supply module 133 and the electromagnetic wave generating module 131 .
  • the logic gates of the protection circuit 140 may be connected in series between the controller 134 and one end of the electromagnetic portion of the relay.
  • the protection circuit 140 may further include a pull-down resistor R4.
  • the pull-down resistor R4 can be set such that one end is grounded and the other end is electrically connected to the other end of the electromagnetic part of the relay.
  • the protection circuit 140 may further include a PNP transistor Q1 and a second pull-up resistor R5.
  • the emitter of the PNP transistor Q1 can be set to be electrically connected to one end of the electromagnetic part of the relay, the base can be electrically connected to the output terminals of all logic gates, and the collector can be set to ground to amplify the voltage of the output terminals of the logic gates.
  • the second pull-up resistor R5 can be set so that one end is connected to a high level, and the other end is connected between the emitter of the triode Q1 and the electromagnetic part of the relay.
  • the protection circuit 140 may further include a first safety resistor R2.
  • the first safety resistor R2 can be set to have one end grounded, and the other end connected between the controller 134 and all logic gates, so as to improve circuit safety and stability.
  • the electromagnetic wave processing device 100 has only one door body 120 .
  • the AND gate N1 of the protection circuit 140 has only two input terminals, and the protection circuit 140 has only one linkage switch S1.
  • Fig. 4 is a schematic cross-sectional view of an electromagnetic wave processing device 100 according to another embodiment of the present invention.
  • the electromagnetic wave processing device 100 may further include a box body 150 defining at least one storage compartment 151 , and a refrigeration system 170 (such as a refrigerator) for providing cold energy to the storage compartment 151 .
  • a refrigeration system 170 such as a refrigerator
  • the cylinder body 110 can be disposed in a storage compartment 151 of the box body 150 , and the door body 160 can be configured to open and close an access opening of the storage compartment 151 . That is, the electromagnetic wave processing device 100 may include two doors.
  • the protection circuit 140 can be configured to block the electromagnetic wave generating system when any one of the door body 120 and the door body 160 is in an open state, and turn on the electromagnetic wave generating system when both the door body 120 and the door body 160 are in a closed state.
  • the protection circuit 140 can also only be linked with the opening and closing state of one of the door body 120 and the door body 160 .
  • the controller 134 can be configured to control the electromagnetic wave generating system to adjust the frequency of the electromagnetic wave signal generated by it within the pre-selected frequency interval every preset time interval t, so that the electromagnetic wave generating system meets the preset matching conditions, Record the frequency of the electromagnetic wave signal that meets the preset matching condition each time and calculate the change amount of the frequency of the electromagnetic wave signal that meets the preset matching condition before the preset matching number of times.
  • the change amount is less than or equal to the preset change threshold S, Control the electromagnetic wave generating system to stop working.
  • the inventors of the present application have creatively realized that the variation of the matching frequency in the same time period is relatively small, and it only has a significant drop when it is close to the phase transition region of water and is affected by the degree of frequency matching.
  • the frequency matching is satisfied
  • the electromagnetic wave generation system is controlled to stop working, which can stop the heating of the food at the state desired by the user, and is especially suitable for food thawing, which can prevent the object 180 from being thawed too much.
  • the temperature at the time of completion is generally -4 to -2°C, which can avoid bloody water from thawing when the object 180 to be processed is meat, and is easy for the user to cut.
  • the preset time interval t may be 25s ⁇ 40s, such as 25s, 30s, or 40s, so as to avoid misjudgment.
  • the optional frequency range may be 400MHz-500MHz, so as to ensure the temperature uniformity of the object 180 to be processed and the heating efficiency of the object 180 to be processed.
  • the preset matching times may be greater than or equal to 2, for example 3, to avoid misjudgment.
  • the preset matching times can also be 1, that is, the variation is the difference between the frequencies of two adjacent electromagnetic wave signals satisfying the preset matching condition.
  • the power of the electromagnetic wave signal during the frequency matching process may be 5% to 10% of the power of the electromagnetic wave signal during the normal heating process, so as to reduce adverse effects on the object 180 to be treated.
  • the controller 134 can be configured to use the minimum value of the pre-selected frequency range to the frequency of the electromagnetic wave signal satisfying the preset matching condition last time as the candidate frequency range for this frequency matching, and calculate the preset The difference between the frequency of the electromagnetic wave signal that satisfies the preset matching condition before the number of matching times and this time is used as the variation to quickly and accurately determine the frequency of the electromagnetic wave signal that meets the preset matching condition, thereby reducing the frequency of the frequency matching process. 180 quality effects, improve the timeliness of judging whether to stop heating.
  • the controller 134 may be configured to first calculate the frequency difference (absolute value) of every two adjacent electromagnetic wave signals satisfying the preset matching condition, and then add all the differences to obtain the variation, to improve accuracy.
  • the matching condition when performing frequency matching for the first time, may be: the power of the reflected wave signal returning to the electromagnetic wave generating system is minimum, so as to facilitate subsequent frequency matching and shorten the time for subsequent frequency matching.
  • the controller 134 can be configured to determine the remaining heating time T of the object 180 to be treated according to the frequency of the electromagnetic wave signal that meets the preset matching condition for the first time according to the preset comparison table, and continue to heat the object 180 for a time greater than or equal to the determined remaining heating time T At time T, the electromagnetic wave generation system is controlled to stop working, so as to further ensure that the heated object 180 has excellent quality.
  • the comparison table records the corresponding relationship between different frequencies and the remaining heating time T.
  • the matching condition when frequency matching is performed for the first time and within a similar preset matching times after the first time, the matching condition may be: the power of the reflected wave signal returning to the electromagnetic wave generating system is minimum.
  • the controller 134 can be configured to follow the preset comparison table according to the sum of the frequency difference (absolute value) of every adjacent two electromagnetic wave signals satisfying the preset matching condition within the preset matching times for the first time and after the first time.
  • the comparison table records the corresponding relationship between the sum of different differences and the remaining heating time T.
  • the matching condition may be: the ratio of the power of the reflected wave signal returning to the electromagnetic wave generating system to the power of the incident wave signal propagating to the cylinder 110 from the electromagnetic wave generating system is greater than equal to the preset ratio threshold.
  • the preset ratio threshold may be 70%-80%.
  • the current frequency matching is terminated, so as to reduce adverse effects on the object 180 to be treated and improve heating efficiency.

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Abstract

An electromagnetic wave processing apparatus. The electromagnetic wave processing apparatus comprises: a cylinder body, which defines a chamber for accommodating an object to be processed; at least one door body, by means of which said object may be taken out of the chamber or may be placed into the chamber when the door body is in an open state; an electromagnetic wave generation system; and a protection circuit. The electromagnetic wave generation system is at least partially arranged in the cylinder body or connected to the cylinder body, so as to emit electromagnetic waves to the chamber to process said object. The protection circuit comprises at least one logic gate, wherein the at least one logic gate is connected in series to the electromagnetic wave generation system, and is configured to intercept the electromagnetic wave generation system when at least one of the door bodies is in the open state, so as to prevent electromagnetic wave leakage and damage to the health of a user and other electrical devices around the chamber. Compared with simply using a control method to control the start and stop of an electromagnetic wave generation system, the apparatus has a higher safety coefficient and a higher stability and reliability.

Description

电磁波处理装置Electromagnetic wave processing device 技术领域technical field
本发明涉及厨房用具，特别是涉及一种电磁波处理装置。The invention relates to kitchen utensils, in particular to an electromagnetic wave processing device.
背景技术Background technique
食物在冷冻的过程中，食物的品质得到了保持，然而冷冻的食物在加工或食用前需要解冻。为了便于用户冷冻和解冻食物，现有技术一般通过电磁波处理装置来解冻食物。During the freezing process of food, the quality of food is maintained, but frozen food needs to be thawed before processing or consumption. In order to facilitate users to freeze and thaw food, the prior art generally uses an electromagnetic wave processing device to thaw food.
然而，在电磁波处理装置工作时，其腔室内形成有高压电磁场，容易产生安全隐患，例如解冻过程中用户打开腔室。综合考虑，在设计上需要一种安全系数高且稳定可靠的电磁波处理装置。However, when the electromagnetic wave processing device is working, a high-voltage electromagnetic field is formed in the chamber, which is likely to cause safety hazards, for example, the user opens the chamber during the thawing process. Considering comprehensively, a stable and reliable electromagnetic wave processing device with high safety factor is required in design.
发明内容Contents of the invention
本发明的一个目的是要克服现有技术中的至少一个技术缺陷，提供一种电磁波处理装置，其具有较高的安全系数。An object of the present invention is to overcome at least one technical defect in the prior art and provide an electromagnetic wave processing device with a higher safety factor.
本发明一个进一步的目的是要降低生产成本。A further object of the invention is to reduce production costs.
本发明另一个进一步的目的是要节约能源。Another further object of the invention is to save energy.
特别地，本发明提供了一种电磁波处理装置，包括：In particular, the present invention provides an electromagnetic wave processing device, comprising:
筒体，限定有用于容纳待处理物的腔室；a cylinder defining a chamber for containing the material to be treated;
至少一个门体，配置为均处于打开状态时，所述待处理物可从所述腔室取出或可放置于所述腔室；At least one door body is configured such that when both are in an open state, the object to be treated can be taken out from the chamber or can be placed in the chamber;
电磁波发生系统，至少部分设置于所述筒体内或通达至所述筒体，以向所述腔室发射电磁波来处理所述待处理物；以及An electromagnetic wave generating system, at least partly disposed in or accessible to the barrel, to emit electromagnetic waves to the chamber to treat the object to be treated; and
保护电路，包括至少一个逻辑门，所述至少一个逻辑门串联于所述电磁波发生系统并配置为在所述至少一个门体中的至少一个处于打开状态时阻断所述电磁波发生系统。The protection circuit includes at least one logic gate connected in series with the electromagnetic wave generating system and configured to block the electromagnetic wave generating system when at least one of the at least one gate is in an open state.
可选地，所述至少一个逻辑门包括与门，所述与门具有多个输入端和一个输出端；其中，Optionally, the at least one logic gate includes an AND gate, and the AND gate has multiple input terminals and one output terminal; wherein,
所述与门的一个所述输入端和所述输出端串联于所述电磁波发生系统；且One said input end and said output end of said AND gate are connected in series with said electromagnetic wave generating system; and
所述与门另外的至少一个所述输入端配置为在所述至少一个门体中的 至少一个处于打开状态时至少一个为低电平。The other at least one input end of the AND gate is configured such that at least one of the at least one gates is in an open state and at least one is at a low level.
可选地，所述保护电路还包括：Optionally, the protection circuit also includes:
至少一个联动开关，与至少一个所述门体相对应，并配置为在对应的门体处于关闭状态时断开、在对应的门体处于打开状态时闭合；和at least one linkage switch, corresponding to at least one of the doors, and configured to be disconnected when the corresponding door is in a closed state and closed when the corresponding door is in an open state; and
至少一个第一上拉电阻，设置为一端接入高电平，另一端分别与所述与门的至少一个输入端电连接；其中At least one first pull-up resistor is set so that one end is connected to a high level, and the other end is respectively electrically connected to at least one input end of the AND gate; wherein
所述至少一个联动开关设置为一端接地，另一端分别接入所述至少一个第一上拉电阻与所述至少一个输入端之间。The at least one linkage switch is configured such that one end is grounded, and the other end is respectively connected between the at least one first pull-up resistor and the at least one input end.
可选地，所述与门的输入端的数量为两个，所述保护电路还包括：Optionally, the number of input terminals of the AND gate is two, and the protection circuit further includes:
至少一个联动开关，与至少一个所述门体相对应，并配置为在对应的门体处于关闭状态时断开、在对应的门体处于打开状态时闭合；和at least one linkage switch, corresponding to at least one of the doors, and configured to be disconnected when the corresponding door is in a closed state and closed when the corresponding door is in an open state; and
第一上拉电阻，设置为一端接入高电平，另一端与所述与门的一个输入端电连接；其中The first pull-up resistor is set so that one end is connected to a high level, and the other end is electrically connected to an input end of the AND gate; wherein
所述至少一个联动开关设置为串联，并一端接地、另一端接入所述第一上拉电阻和所述第一上拉电阻对应的所述输入端之间。The at least one linkage switch is arranged in series, and one end is grounded, and the other end is connected between the first pull-up resistor and the input end corresponding to the first pull-up resistor.
可选地，所述电磁波发生系统包括：Optionally, the electromagnetic wave generating system includes:
电磁波发生模块，配置为产生电磁波信号；和An electromagnetic wave generating module configured to generate an electromagnetic wave signal; and
控制器，设置为与所述电磁波发生模块电连接，用于控制所述电磁波发生模块的启停；其中a controller, configured to be electrically connected to the electromagnetic wave generating module, and used to control the start and stop of the electromagnetic wave generating module; wherein
所述至少一个逻辑门串联于所述控制器与所述电磁波发生模块之间。The at least one logic gate is connected in series between the controller and the electromagnetic wave generating module.
可选地，所述保护电路还包括：Optionally, the protection circuit also includes:
第一安全电阻，设置为一端接地，另一端接入所述控制器与所述至少一个逻辑门之间；和/或The first safety resistor is configured such that one end is grounded and the other end is connected between the controller and the at least one logic gate; and/or
第二安全电阻，设置为一端接地，另一端接入所述至少一个逻辑门与所述电磁波发生模块之间。The second safety resistor is configured such that one end is grounded and the other end is connected between the at least one logic gate and the electromagnetic wave generating module.
可选地，所述电磁波发生系统包括：Optionally, the electromagnetic wave generating system includes:
电磁波发生模块，配置为产生电磁波信号；An electromagnetic wave generating module configured to generate an electromagnetic wave signal;
供电模块，设置为向所述电磁波发生模块供电；A power supply module configured to supply power to the electromagnetic wave generating module;
控制开关，设置为导通或阻断所述供电模块与所述电磁波发生模块之间的电路；和a control switch configured to conduct or block the circuit between the power supply module and the electromagnetic wave generating module; and
控制器，设置为与所述控制开关电连接，用于控制所述控制开关的通断；a controller, configured to be electrically connected to the control switch, and used to control the on-off of the control switch;
其中in
所述控制开关为常断型；且the control switch is of the normally-off type; and
所述至少一个逻辑门串联于所述控制器与所述控制开关之间。The at least one logic gate is connected in series between the controller and the control switch.
可选地，所述控制开关为电磁式继电器；其中Optionally, the control switch is an electromagnetic relay; wherein
所述继电器的开关部分串联于所述供电模块与所述电磁波发生模块之间；The switch part of the relay is connected in series between the power supply module and the electromagnetic wave generating module;
所述至少一个逻辑门串联于所述控制器与所述继电器的电磁部分的一端之间；且所述保护电路还包括：The at least one logic gate is connected in series between the controller and one end of the electromagnetic portion of the relay; and the protection circuit further includes:
一个下拉电阻，设置为一端接地，另一端与所述继电器的电磁部分的另一端电连接。A pull-down resistor configured to have one end connected to ground and the other end electrically connected to the other end of the electromagnetic portion of the relay.
可选地，所述保护电路还包括：Optionally, the protection circuit also includes:
PNP式三极管，其发射极设置为与所述继电器的电磁部分的一端电连接，基极与所述至少一个逻辑门的输出端电连接，集电极设置为接地；和A PNP triode, the emitter of which is electrically connected to one end of the electromagnetic part of the relay, the base is electrically connected to the output end of the at least one logic gate, and the collector is arranged to be grounded; and
第二上拉电阻，设置为一端接入高电平，另一端接入所述三极管的发射极与所述继电器的电磁部分之间。The second pull-up resistor is set so that one end is connected to a high level, and the other end is connected between the emitter of the triode and the electromagnetic part of the relay.
可选地，所述电磁波处理装置，还包括：Optionally, the electromagnetic wave processing device further includes:
制冷系统，用于向所述电磁波处理装置提供冷量。The refrigeration system is used to provide refrigeration to the electromagnetic wave processing device.
本发明的电磁波处理装置设置有保护电路，可在门体处于打开状态时阻断电磁波发生系统，进而防止电磁波泄漏，损害用户健康和腔室周围的其他电器件，相比于单单地采用控制方法对电磁波发生系统的启停进行控制，安全系数更高、具有更高的稳定性和可靠性。The electromagnetic wave processing device of the present invention is provided with a protection circuit, which can block the electromagnetic wave generating system when the door is in an open state, thereby preventing electromagnetic wave leakage from damaging the user's health and other electrical devices around the chamber. Controlling the start and stop of the electromagnetic wave generating system has a higher safety factor, higher stability and reliability.
进一步地，本发明通过与门和反映门体的开闭状态的联动开关通断电磁波发生系统，结构简单，稳定可靠，而且还可以使与门先串联于电磁波发生系统，在整机装配时再与联动开关连接，便于模块化生产并适用于不同的机型，降低了生产成本。Furthermore, the present invention uses the AND door and the linkage switch reflecting the opening and closing state of the door body to turn on and off the electromagnetic wave generating system. The structure is simple, stable and reliable, and the AND door can be connected in series with the electromagnetic wave generating system first, and then the electromagnetic wave generating system can be connected in series when the whole machine is assembled. It is connected with the linkage switch, which is convenient for modular production and applicable to different models, reducing the production cost.
进一步地，本发明的保护电路配置为导通或阻断供电模块向电磁波发生模块的供电，不仅进一步地提高了电磁波处理装置的安全性，还避免电磁波发生模块长时间处于待机状态，避免了不期望的电能损耗，节约了能源。Furthermore, the protection circuit of the present invention is configured to turn on or block the power supply from the power supply module to the electromagnetic wave generating module, which not only further improves the safety of the electromagnetic wave processing device, but also prevents the electromagnetic wave generating module from being in a standby state for a long time, avoiding unnecessary Expected power loss, saving energy.
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.
附图说明Description of drawings
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:
图1是根据本发明一个实施例的电磁波处理装置的示意性结构图；Fig. 1 is a schematic structural diagram of an electromagnetic wave processing device according to an embodiment of the present invention;
图2是根据本发明一个实施例的保护电路的示意性结构图；FIG. 2 is a schematic structural diagram of a protection circuit according to an embodiment of the present invention;
图3是根据本发明另一个实施例的保护电路的示意性结构图；3 is a schematic structural diagram of a protection circuit according to another embodiment of the present invention;
图4是根据本发明另一个实施例的电磁波处理装置的示意性剖视图。Fig. 4 is a schematic cross-sectional view of an electromagnetic wave processing device according to another embodiment of the present invention.
具体实施方式Detailed ways
图1是根据本发明一个实施例的电磁波处理装置100的示意性结构图。参见图1，电磁波处理装置100可包括筒体110、至少一个门体、以及电磁波发生系统。在本发明中，至少一个为一个、两个或两个以上的更多个。Fig. 1 is a schematic structural diagram of an electromagnetic wave processing device 100 according to an embodiment of the present invention. Referring to FIG. 1 , the electromagnetic wave processing device 100 may include a cylinder body 110 , at least one door body, and an electromagnetic wave generating system. In the present invention, at least one is one, two or more.
筒体110可限定有用于容纳待处理物180的腔室111。筒体110可开设有与腔室111连通的取放口，以使待处理物180可被取放。The barrel 110 may define a chamber 111 for containing the object 180 to be treated. The cylinder body 110 may be provided with a pick-and-place opening communicating with the chamber 111, so that the to-be-processed object 180 can be picked and put.
一个或多个门体可配置为均处于打开状态时，待处理物180可从腔室111取出或可放置于腔室111。One or more doors can be configured such that when all of them are in an open state, the object 180 to be processed can be taken out from the chamber 111 or can be placed in the chamber 111 .
电磁波发生系统可至少部分设置于筒体110内或通达至筒体110，以向筒体110内发射电磁波来处理待处理物180(例如，加热)。The electromagnetic wave generating system may be at least partly disposed in or accessible to the cylinder 110 to emit electromagnetic waves into the cylinder 110 to treat the object 180 to be treated (for example, to heat).
电磁波发生系统可包括电磁波发生模块131、与电磁波发生模块131电连接的辐射天线132、用于向电磁波发生模块131供电的供电模块133、以及控制器134。The electromagnetic wave generating system may include an electromagnetic wave generating module 131 , a radiation antenna 132 electrically connected to the electromagnetic wave generating module 131 , a power supply module 133 for supplying power to the electromagnetic wave generating module 131 , and a controller 134 .
电磁波发生模块131可配置为产生电磁波信号，辐射天线132可设置于筒体110内，以在筒体110内产生电磁波，进而处理筒体110内的待处理物180。The electromagnetic wave generating module 131 can be configured to generate electromagnetic wave signals, and the radiation antenna 132 can be disposed in the barrel 110 to generate electromagnetic waves in the barrel 110 to process the object 180 in the barrel 110 .
控制器134可设置为与电磁波发生模块131电连接，以控制电磁波发生模块131的启停、调节电磁波发生模块131的工作参数。The controller 134 can be configured to be electrically connected to the electromagnetic wave generating module 131 to control the start and stop of the electromagnetic wave generating module 131 and adjust the working parameters of the electromagnetic wave generating module 131 .
图2是根据本发明一个实施例的保护电路140的示意性结构图(在图2和图3中，“IN”表示“输入”；“OUT”表示“输出”)。参见图2，特别地，电磁波处理装置100还可包括保护电路140，以提高电磁波处理装置100的安全性能。FIG. 2 is a schematic structure diagram of a protection circuit 140 according to an embodiment of the present invention (in FIGS. 2 and 3 , "IN" means "input"; "OUT" means "output"). Referring to FIG. 2 , in particular, the electromagnetic wave processing device 100 may further include a protection circuit 140 to improve the safety performance of the electromagnetic wave processing device 100 .
保护电路140可包括至少一个逻辑门。至少一个逻辑门可串联于电磁波 发生系统，并配置为在门体中的至少一个处于打开状态时阻断电磁波发生系统，进而防止电磁波泄漏，损害用户健康和腔室111周围的其他电器件，相比于单单地采用控制方法对电磁波发生系统的启停进行控制，安全系数更高、具有更高的稳定性和可靠性。The protection circuit 140 may include at least one logic gate. At least one logic gate can be connected in series with the electromagnetic wave generating system, and configured to block the electromagnetic wave generating system when at least one of the gates is in an open state, thereby preventing electromagnetic wave leakage from damaging the user's health and other electrical devices around the chamber 111. Compared with simply using the control method to control the start and stop of the electromagnetic wave generating system, the safety factor is higher, and it has higher stability and reliability.
逻辑门可包括与门N1。与门N1可具有多个输入端和一个输出端，当多个输入端的输入均为高电平时，输出端的输出为高电平；当多个输入端中的一个或多个的输入为低电平时，输出端的输出为低电平。The logic gates may include an AND gate N1. The AND gate N1 can have multiple input terminals and one output terminal. When the inputs of multiple input terminals are high level, the output of the output terminal is high level; when the input of one or more of the multiple input terminals is low level Usually, the output of the output terminal is low level.
与门N1的一个输入端和输出端可串联于电磁波发生系统，另外的至少一个输入端配置为在门体中的至少一个处于打开状态时至少一个为低电平，以在门体中的至少一个处于打开状态时阻断电磁波发生系统。An input terminal and an output terminal of the AND gate N1 can be connected in series with the electromagnetic wave generating system, and at least one other input terminal is configured so that at least one of the gates is at a low level when at least one of the gates is in an open state, so that at least one of the gates A system that blocks electromagnetic wave generation when in an open state.
在一些实施例中，保护电路140还可包括至少一个联动开关S1和至少一个第一上拉电阻R1。In some embodiments, the protection circuit 140 may further include at least one linkage switch S1 and at least one first pull-up resistor R1.
至少一个联动开关S1可与至少一个门体相对应，并配置为在对应的门体处于关闭状态时断开、在对应的门体处于打开状态时闭合。At least one linkage switch S1 may correspond to at least one door body, and is configured to be turned off when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state.
至少一个第一上拉电阻R1可设置为一端接入高电平，另一端分别与与门N1的至少一个输入端电连接。The at least one first pull-up resistor R1 can be set so that one end is connected to a high level, and the other end is respectively electrically connected to at least one input end of the AND gate N1.
至少一个联动开关S1可设置为一端接地，另一端分别接入至少一个第一上拉电阻R1与至少一个输入端之间。The at least one linkage switch S1 may be configured such that one end is grounded, and the other end is respectively connected between at least one first pull-up resistor R1 and at least one input end.
也就是说，第一上拉电阻R1和与门N1的输入端的数量可与联动开关S1的数量相同。在联动开关S1的数量为多个的情况下，多个第一上拉电阻R1可一端均接入高电平、另一端分别与与门N1的多个输入端电连接，多个联动开关S1可一端均接地、另一端分别接入一个第一上拉电阻R1和与门N1的一个输入端之间。That is to say, the number of the first pull-up resistor R1 and the input terminals of the AND gate N1 may be the same as the number of the linkage switch S1. When there are multiple linkage switches S1, one end of the multiple first pull-up resistors R1 can be connected to a high level, and the other end is electrically connected to multiple input terminals of the AND gate N1, and the multiple linkage switches S1 One end can be grounded, and the other end can be respectively connected between a first pull-up resistor R1 and an input end of the AND gate N1.
在另一些实施例中，与门N1的输入端的数量可仅为两个。保护电路140还可包括至少一个联动开关S1和一个第一上拉电阻R1。In other embodiments, the number of input terminals of the AND gate N1 may be only two. The protection circuit 140 may further include at least one linkage switch S1 and a first pull-up resistor R1.
至少一个联动开关S1可与至少一个门体相对应，并配置为在对应的门体处于关闭状态时断开、在对应的门体处于打开状态时闭合。At least one linkage switch S1 may correspond to at least one door body, and is configured to be turned off when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state.
第一上拉电阻R1可设置为一端接入高电平，另一端与与门N1的一个输入端电连接。The first pull-up resistor R1 can be set so that one end is connected to a high level, and the other end is electrically connected to an input end of the AND gate N1.
至少一个联动开关S1可设置为串联，并一端接地、另一端接入第一上拉电阻R1和第一上拉电阻R1对应的输入端之间。At least one linkage switch S1 can be set in series, and one end is grounded, and the other end is connected between the first pull-up resistor R1 and the corresponding input end of the first pull-up resistor R1.
也就是说，在联动开关S1的数量为多个的情况下，多个联动开关S1可在接地点与第一上拉电阻R1和输入端之间的连接点之间串联。That is to say, in the case of multiple linkage switches S1, the multiple linkage switches S1 may be connected in series between the ground point and the connection point between the first pull-up resistor R1 and the input terminal.
在本发明中，联动开关S1的数量可与门体的数量相同。当门体的数量为多个时，联动开关S1的数量也可为一个，在所有门体处于关闭状态时断开，在任一个门体处于打开状态时闭合。In the present invention, the number of linkage switches S1 may be the same as the number of door bodies. When there are multiple doors, the linkage switch S1 may also be one, which is turned off when all the doors are in the closed state, and closed when any door is in the open state.
在一些实施例中，保护电路140的逻辑门可串联于控制器134与电磁波发生模块131之间，以使任一个门体处于打开状态时，控制器134无法向电磁波发生模块131发送启动指令。In some embodiments, the logic gates of the protection circuit 140 can be connected in series between the controller 134 and the electromagnetic wave generating module 131 , so that when any door is opened, the controller 134 cannot send an activation command to the electromagnetic wave generating module 131 .
保护电路140还可包括第一安全电阻R2和第二安全电阻R3。其中，第一安全电阻R2可设置为一端接地，另一端接入控制器134与所有逻辑门之间，以提高电路安全性和稳定性。The protection circuit 140 may further include a first safety resistor R2 and a second safety resistor R3. Wherein, one end of the first safety resistor R2 can be set to be grounded, and the other end is connected between the controller 134 and all logic gates, so as to improve circuit safety and stability.
第二安全电阻R3可设置为一端接地，另一端接入所有逻辑门与电磁波发生模块131之间，以提高电路安全性和稳定性。The second safety resistor R3 can be set so that one end is grounded, and the other end is connected between all logic gates and the electromagnetic wave generating module 131, so as to improve circuit safety and stability.
在另一些实施例中，电磁波发生系统还可包括控制开关K1，用于导通或阻断供电模块133与电磁波发生模块131之间的电路。控制器134可设置为与控制开关K1电连接，用于控制控制开关K1的通断。In some other embodiments, the electromagnetic wave generating system may further include a control switch K1 for turning on or blocking the circuit between the power supply module 133 and the electromagnetic wave generating module 131 . The controller 134 may be configured to be electrically connected to the control switch K1 for controlling the on-off of the control switch K1.
控制开关K1为常断型。保护电路140的逻辑门可串联于控制器134与控制开关K1之间，以使任一个门体处于打开状态时，控制器134无法发送指令使控制开关K1导通。The control switch K1 is normally off. The logic gates of the protection circuit 140 can be connected in series between the controller 134 and the control switch K1, so that when any one of the gates is in an open state, the controller 134 cannot send an instruction to turn on the control switch K1.
图3是根据本发明另一个实施例的保护电路140的示意性结构图。参见图3，控制开关K1可为电磁式继电器。FIG. 3 is a schematic structural diagram of a protection circuit 140 according to another embodiment of the present invention. Referring to FIG. 3 , the control switch K1 can be an electromagnetic relay.
继电器的开关部分可串联于供电模块133与电磁波发生模块131之间。保护电路140的逻辑门可串联于控制器134与继电器的电磁部分的一端之间。The switch part of the relay can be connected in series between the power supply module 133 and the electromagnetic wave generating module 131 . The logic gates of the protection circuit 140 may be connected in series between the controller 134 and one end of the electromagnetic portion of the relay.
保护电路140还可包括一个下拉电阻R4。下拉电阻R4可设置为一端接地，另一端与继电器的电磁部分的另一端电连接。The protection circuit 140 may further include a pull-down resistor R4. The pull-down resistor R4 can be set such that one end is grounded and the other end is electrically connected to the other end of the electromagnetic part of the relay.
在一些进一步的实施例中，保护电路140还可包括PNP式三极管Q1和第二上拉电阻R5。PNP式三极管Q1的发射极可设置为与继电器的电磁部分的一端电连接，基极可与所有逻辑门的输出端电连接，集电极可设置为接地，以放大逻辑门的输出端的电压。In some further embodiments, the protection circuit 140 may further include a PNP transistor Q1 and a second pull-up resistor R5. The emitter of the PNP transistor Q1 can be set to be electrically connected to one end of the electromagnetic part of the relay, the base can be electrically connected to the output terminals of all logic gates, and the collector can be set to ground to amplify the voltage of the output terminals of the logic gates.
第二上拉电阻R5可设置为一端接入高电平，另一端接入三极管Q1的 发射极与继电器的电磁部分之间。The second pull-up resistor R5 can be set so that one end is connected to a high level, and the other end is connected between the emitter of the triode Q1 and the electromagnetic part of the relay.
保护电路140还可包括第一安全电阻R2。第一安全电阻R2可设置为一端接地，另一端接入控制器134与所有逻辑门之间，以提高电路安全性和稳定性。The protection circuit 140 may further include a first safety resistor R2. The first safety resistor R2 can be set to have one end grounded, and the other end connected between the controller 134 and all logic gates, so as to improve circuit safety and stability.
在图1所示实施例中，电磁波处理装置100仅具有一个门体120。相应地，保护电路140的与门N1仅具有两个输入端，保护电路140仅具有一个联动开关S1。In the embodiment shown in FIG. 1 , the electromagnetic wave processing device 100 has only one door body 120 . Correspondingly, the AND gate N1 of the protection circuit 140 has only two input terminals, and the protection circuit 140 has only one linkage switch S1.
图4是根据本发明另一个实施例的电磁波处理装置100的示意性剖视图。参见图4，电磁波处理装置100还可包括限定有至少一个储物间室151的箱体150、和用于向储物间室151提供冷量的制冷系统170(例如冰箱)。Fig. 4 is a schematic cross-sectional view of an electromagnetic wave processing device 100 according to another embodiment of the present invention. Referring to FIG. 4 , the electromagnetic wave processing device 100 may further include a box body 150 defining at least one storage compartment 151 , and a refrigeration system 170 (such as a refrigerator) for providing cold energy to the storage compartment 151 .
筒体110可设置于箱体150的一个储物间室151内，门体160可配置为开闭该储物间室151的取放口。也即是，电磁波处理装置100可包括两个门体。The cylinder body 110 can be disposed in a storage compartment 151 of the box body 150 , and the door body 160 can be configured to open and close an access opening of the storage compartment 151 . That is, the electromagnetic wave processing device 100 may include two doors.
保护电路140可配置为在门体120和门体160中的任一个处于打开状态时阻断电磁波发生系统，在门体120和门体160均处于关闭状态时导通电磁波发生系统。The protection circuit 140 can be configured to block the electromagnetic wave generating system when any one of the door body 120 and the door body 160 is in an open state, and turn on the electromagnetic wave generating system when both the door body 120 and the door body 160 are in a closed state.
保护电路140也可仅与门体120和门体160中的一个的开闭状态联动。The protection circuit 140 can also only be linked with the opening and closing state of one of the door body 120 and the door body 160 .
在一些实施例中，控制器134可配置为每预设时间间隔t控制电磁波发生系统在预设备选频率区间内调节其产生的电磁波信号的频率，以使电磁波发生系统满足预设匹配条件，记录每次满足预设匹配条件的电磁波信号的频率并计算预设匹配次数前至本次的满足预设匹配条件的电磁波信号的频率的变化量，在变化量小于等于预设变化阈值S时，控制电磁波发生系统停止工作。In some embodiments, the controller 134 can be configured to control the electromagnetic wave generating system to adjust the frequency of the electromagnetic wave signal generated by it within the pre-selected frequency interval every preset time interval t, so that the electromagnetic wave generating system meets the preset matching conditions, Record the frequency of the electromagnetic wave signal that meets the preset matching condition each time and calculate the change amount of the frequency of the electromagnetic wave signal that meets the preset matching condition before the preset matching number of times. When the change amount is less than or equal to the preset change threshold S, Control the electromagnetic wave generating system to stop working.
本申请的发明人创造性地认识到，相同时间内实现匹配的频率的变化量相差较小，仅在接近于水的相变区时具有明显的下降且受频率匹配度的影响，在满足频率匹配条件的频率变化量小于等于预设变化阈值S时控制电磁波发生系统停止工作，可使对食物的加热停止在用户期望的状态，特别适用于食物解冻，可防止待处理物180被过分解冻，解冻完成时的温度一般为-4～-2℃，可避免当待处理物180为肉品时，解冻产生血水，易于用户切割。The inventors of the present application have creatively realized that the variation of the matching frequency in the same time period is relatively small, and it only has a significant drop when it is close to the phase transition region of water and is affected by the degree of frequency matching. When the frequency matching is satisfied When the frequency change of the condition is less than or equal to the preset change threshold S, the electromagnetic wave generation system is controlled to stop working, which can stop the heating of the food at the state desired by the user, and is especially suitable for food thawing, which can prevent the object 180 from being thawed too much. The temperature at the time of completion is generally -4 to -2°C, which can avoid bloody water from thawing when the object 180 to be processed is meat, and is easy for the user to cut.
在本发明中，预设时间间隔t可为25s～40s，例如25s、30s、或40s，以避免误判的情况发生。In the present invention, the preset time interval t may be 25s˜40s, such as 25s, 30s, or 40s, so as to avoid misjudgment.
备选频率区间可为400MHz～500MHz，以保证待处理物180的温度均匀性和对待处理物180的加热效率。The optional frequency range may be 400MHz-500MHz, so as to ensure the temperature uniformity of the object 180 to be processed and the heating efficiency of the object 180 to be processed.
预设匹配次数可大于等于2，例如3，以避免误判的情况发生。预设匹配次数也可为1，即变化量为相邻两次满足预设匹配条件的电磁波信号的频率的差值。The preset matching times may be greater than or equal to 2, for example 3, to avoid misjudgment. The preset matching times can also be 1, that is, the variation is the difference between the frequencies of two adjacent electromagnetic wave signals satisfying the preset matching condition.
频率匹配过程中电磁波信号的功率可为正常加热过程中电磁波信号的功率的5％～10％，以减少对待处理物180的不利影响。The power of the electromagnetic wave signal during the frequency matching process may be 5% to 10% of the power of the electromagnetic wave signal during the normal heating process, so as to reduce adverse effects on the object 180 to be treated.
在一些实施例中，控制器134可配置为将预设备选频率区间的最小值至前一次满足预设匹配条件的电磁波信号的频率作为本次频率匹配的备选频率区间，并计算预设匹配次数前与本次的满足预设匹配条件的电磁波信号的频率的差值作为变化量，以快速、准确地确定出满足预设匹配条件的电磁波信号的频率，进而降低频率匹配过程对待处理物180品质的影响，提高的判断是否停止加热的及时性。In some embodiments, the controller 134 can be configured to use the minimum value of the pre-selected frequency range to the frequency of the electromagnetic wave signal satisfying the preset matching condition last time as the candidate frequency range for this frequency matching, and calculate the preset The difference between the frequency of the electromagnetic wave signal that satisfies the preset matching condition before the number of matching times and this time is used as the variation to quickly and accurately determine the frequency of the electromagnetic wave signal that meets the preset matching condition, thereby reducing the frequency of the frequency matching process. 180 quality effects, improve the timeliness of judging whether to stop heating.
在另一些实施例中，控制器134可配置为先计算每相邻两个满足预设匹配条件的电磁波信号的频率的差值(绝对值)，再将该所有差值相加获得变化量，以提高准确性。In some other embodiments, the controller 134 may be configured to first calculate the frequency difference (absolute value) of every two adjacent electromagnetic wave signals satisfying the preset matching condition, and then add all the differences to obtain the variation, to improve accuracy.
在一些实施例中，在首次进行频率匹配时，匹配条件可为：返回电磁波发生系统的反射波信号的功率最小，以便于后续频率匹配，缩短后续频率匹配的时间。In some embodiments, when performing frequency matching for the first time, the matching condition may be: the power of the reflected wave signal returning to the electromagnetic wave generating system is minimum, so as to facilitate subsequent frequency matching and shorten the time for subsequent frequency matching.
控制器134可配置为根据首次满足预设匹配条件的电磁波信号的频率按照预设对照表确定对待处理物180的剩余加热时间T，并在继续对待处理物180的加热时间大于等于确定的剩余加热时间T时，控制电磁波发生系统停止工作，以进一步保障加热完成的待处理物180具有极佳的品质。其中，对照表记录有不同频率和剩余加热时间T的对应关系。The controller 134 can be configured to determine the remaining heating time T of the object 180 to be treated according to the frequency of the electromagnetic wave signal that meets the preset matching condition for the first time according to the preset comparison table, and continue to heat the object 180 for a time greater than or equal to the determined remaining heating time T At time T, the electromagnetic wave generation system is controlled to stop working, so as to further ensure that the heated object 180 has excellent quality. Wherein, the comparison table records the corresponding relationship between different frequencies and the remaining heating time T.
在另一些实施例中，在首次及在首次之后相近的预设匹配次数内进行频率匹配时，匹配条件均可为：返回电磁波发生系统的反射波信号的功率最小。In some other embodiments, when frequency matching is performed for the first time and within a similar preset matching times after the first time, the matching condition may be: the power of the reflected wave signal returning to the electromagnetic wave generating system is minimum.
控制器134可配置为根据在首次及在首次之后相近的预设匹配次数内的每相邻两个满足预设匹配条件的电磁波信号的频率的差值(绝对值)的总和按照预设对照表确定对待处理物180的剩余加热时间T，并在继续对待处理物180的加热时间大于等于确定的剩余加热时间T时，控制电磁波发生系统停止工作，以更加精准的停止对待处理物180的加热，进一步保障加热完成 的待处理物180具有极佳的品质。其中，对照表记录有不同的差值总和与剩余加热时间T的对应关系。The controller 134 can be configured to follow the preset comparison table according to the sum of the frequency difference (absolute value) of every adjacent two electromagnetic wave signals satisfying the preset matching condition within the preset matching times for the first time and after the first time. Determine the remaining heating time T of the object to be treated 180, and when the heating time of the object to be treated 180 is greater than or equal to the determined remaining heating time T, control the electromagnetic wave generating system to stop working, so as to stop the heating of the object to be treated 180 more accurately, It is further ensured that the heated object 180 has excellent quality. Wherein, the comparison table records the corresponding relationship between the sum of different differences and the remaining heating time T.
在一些进一步的实施例中，在确定出剩余加热时间T后，匹配条件可为：返回电磁波发生系统的反射波信号的功率与电磁波发生系统传播向筒体110的入射波信号的功率的比值大于等于预设比率阈值。预设比率阈值可为70％～80％。In some further embodiments, after the remaining heating time T is determined, the matching condition may be: the ratio of the power of the reflected wave signal returning to the electromagnetic wave generating system to the power of the incident wave signal propagating to the cylinder 110 from the electromagnetic wave generating system is greater than equal to the preset ratio threshold. The preset ratio threshold may be 70%-80%.
当反射波信号的功率与入射波信号的功率的比值大于等于预设比率阈值，结束本次的频率匹配，以减少对待处理物180的不利影响，提高加热效率。When the ratio of the power of the reflected wave signal to the power of the incident wave signal is greater than or equal to the preset ratio threshold, the current frequency matching is terminated, so as to reduce adverse effects on the object 180 to be treated and improve heating efficiency.
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

  1. 一种电磁波处理装置，包括：An electromagnetic wave processing device, comprising:
    筒体，限定有用于容纳待处理物的腔室；a cylinder defining a chamber for containing the material to be treated;
    至少一个门体，配置为均处于打开状态时，所述待处理物可从所述腔室取出或可放置于所述腔室；At least one door body is configured such that when both are in an open state, the object to be treated can be taken out from the chamber or can be placed in the chamber;
    电磁波发生系统，至少部分设置于所述筒体内或通达至所述筒体，以向所述腔室发射电磁波来处理所述待处理物；以及An electromagnetic wave generating system, at least partly disposed in or accessible to the barrel, to emit electromagnetic waves to the chamber to treat the object to be treated; and
    保护电路，包括至少一个逻辑门，所述至少一个逻辑门串联于所述电磁波发生系统并配置为在所述至少一个门体中的至少一个处于打开状态时阻断所述电磁波发生系统。The protection circuit includes at least one logic gate connected in series with the electromagnetic wave generating system and configured to block the electromagnetic wave generating system when at least one of the at least one gate is in an open state.
  2. 根据权利要求1所述的电磁波处理装置，其中，The electromagnetic wave processing device according to claim 1, wherein,
    所述至少一个逻辑门包括与门，所述与门具有多个输入端和一个输出端；其中，The at least one logic gate comprises an AND gate having a plurality of inputs and an output; wherein,
    所述与门的一个所述输入端和所述输出端串联于所述电磁波发生系统；且One said input end and said output end of said AND gate are connected in series with said electromagnetic wave generating system; and
    所述与门另外的至少一个所述输入端配置为在所述至少一个门体中的至少一个处于打开状态时至少一个为低电平。The other at least one input end of the AND gate is configured such that at least one of the at least one gates is at a low level when at least one of the gates is in an open state.
  3. 根据权利要求2所述的电磁波处理装置，其中，所述保护电路还包括：The electromagnetic wave processing device according to claim 2, wherein the protection circuit further comprises:
    至少一个联动开关，与至少一个所述门体相对应，并配置为在对应的门体处于关闭状态时断开、在对应的门体处于打开状态时闭合；和at least one linkage switch, corresponding to at least one of the doors, and configured to be disconnected when the corresponding door is in a closed state and closed when the corresponding door is in an open state; and
    至少一个第一上拉电阻，设置为一端接入高电平，另一端分别与所述与门的至少一个输入端电连接；其中At least one first pull-up resistor is set so that one end is connected to a high level, and the other end is respectively electrically connected to at least one input end of the AND gate; wherein
    所述至少一个联动开关设置为一端接地，另一端分别接入所述至少一个第一上拉电阻与所述至少一个输入端之间。The at least one linkage switch is configured such that one end is grounded, and the other end is respectively connected between the at least one first pull-up resistor and the at least one input end.
  4. 根据权利要求2所述的电磁波处理装置，其中，所述与门的输入端的数量为两个，所述保护电路还包括：The electromagnetic wave processing device according to claim 2, wherein the number of input terminals of the AND gate is two, and the protection circuit further comprises:
    至少一个联动开关，与至少一个所述门体相对应，并配置为在对应的门体处于关闭状态时断开、在对应的门体处于打开状态时闭合；和at least one linkage switch, corresponding to at least one of the doors, and configured to be disconnected when the corresponding door is in a closed state and closed when the corresponding door is in an open state; and
    第一上拉电阻，设置为一端接入高电平，另一端与所述与门的一个输入端电连接；其中The first pull-up resistor is set so that one end is connected to a high level, and the other end is electrically connected to an input end of the AND gate; wherein
    所述至少一个联动开关设置为串联，并一端接地、另一端接入所述第一上拉电阻和所述第一上拉电阻对应的所述输入端之间。The at least one linkage switch is arranged in series, and one end is grounded, and the other end is connected between the first pull-up resistor and the input end corresponding to the first pull-up resistor.
  5. 根据权利要求1所述的电磁波处理装置，其中，所述电磁波发生系统包括：The electromagnetic wave processing device according to claim 1, wherein the electromagnetic wave generating system comprises:
    电磁波发生模块，配置为产生电磁波信号；和An electromagnetic wave generating module configured to generate an electromagnetic wave signal; and
    控制器，设置为与所述电磁波发生模块电连接，用于控制所述电磁波发生模块的启停；其中a controller, configured to be electrically connected to the electromagnetic wave generating module, and used to control the start and stop of the electromagnetic wave generating module; wherein
    所述至少一个逻辑门串联于所述控制器与所述电磁波发生模块之间。The at least one logic gate is connected in series between the controller and the electromagnetic wave generating module.
  6. 根据权利要求5所述的电磁波处理装置，其中，所述保护电路还包括：The electromagnetic wave processing device according to claim 5, wherein the protection circuit further comprises:
    第一安全电阻，设置为一端接地，另一端接入所述控制器与所述至少一个逻辑门之间；和/或The first safety resistor is configured such that one end is grounded and the other end is connected between the controller and the at least one logic gate; and/or
    第二安全电阻，设置为一端接地，另一端接入所述至少一个逻辑门与所述电磁波发生模块之间。The second safety resistor is configured such that one end is grounded and the other end is connected between the at least one logic gate and the electromagnetic wave generating module.
  7. 根据权利要求1所述的电磁波处理装置，其中，所述电磁波发生系统包括：The electromagnetic wave processing device according to claim 1, wherein the electromagnetic wave generating system comprises:
    电磁波发生模块，配置为产生电磁波信号；An electromagnetic wave generating module configured to generate an electromagnetic wave signal;
    供电模块，设置为向所述电磁波发生模块供电；A power supply module configured to supply power to the electromagnetic wave generating module;
    控制开关，设置为导通或阻断所述供电模块与所述电磁波发生模块之间的电路；和a control switch configured to conduct or block the circuit between the power supply module and the electromagnetic wave generating module; and
    控制器，设置为与所述控制开关电连接，用于控制所述控制开关的通断；其中a controller, configured to be electrically connected to the control switch, and used to control the on-off of the control switch; wherein
    所述控制开关为常断型；且the control switch is of the normally-off type; and
    所述至少一个逻辑门串联于所述控制器与所述控制开关之间。The at least one logic gate is connected in series between the controller and the control switch.
  8. 根据权利要求7所述的电磁波处理装置，其中，The electromagnetic wave processing device according to claim 7, wherein,
    所述控制开关为电磁式继电器；其中The control switch is an electromagnetic relay; wherein
    所述继电器的开关部分串联于所述供电模块与所述电磁波发生模块之 间；The switch part of the relay is connected in series between the power supply module and the electromagnetic wave generating module;
    所述至少一个逻辑门串联于所述控制器与所述继电器的电磁部分的一端之间；且所述保护电路还包括：The at least one logic gate is connected in series between the controller and one end of the electromagnetic portion of the relay; and the protection circuit further includes:
    一个下拉电阻，设置为一端接地，另一端与所述继电器的电磁部分的另一端电连接。A pull-down resistor configured to have one end connected to ground and the other end electrically connected to the other end of the electromagnetic portion of the relay.
  9. 根据权利要求8所述的电磁波处理装置，其中，所述保护电路还包括：The electromagnetic wave processing device according to claim 8, wherein the protection circuit further comprises:
    PNP式三极管，其发射极设置为与所述继电器的电磁部分的一端电连接，基极与所述至少一个逻辑门的输出端电连接，集电极设置为接地；和A PNP triode, the emitter of which is electrically connected to one end of the electromagnetic part of the relay, the base is electrically connected to the output end of the at least one logic gate, and the collector is arranged to be grounded; and
    第二上拉电阻，设置为一端接入高电平，另一端接入所述三极管的发射极与所述继电器的电磁部分之间。The second pull-up resistor is set so that one end is connected to a high level, and the other end is connected between the emitter of the triode and the electromagnetic part of the relay.
  10. 根据权利要求1所述的电磁波处理装置，还包括：The electromagnetic wave processing device according to claim 1, further comprising:
    制冷系统，用于向所述电磁波处理装置提供冷量。The refrigeration system is used to provide refrigeration to the electromagnetic wave processing device.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232210A (en) * 1977-06-22 1980-11-04 Tokyo Shibaura Electric Co., Ltd. Output power control system for microwave ovens
CN202868776U (en) * 2012-10-15 2013-04-10 珠海格力电器股份有限公司 Induction cooker
CN203517920U (en) * 2013-09-27 2014-04-02 深圳麦格米特电气股份有限公司 Tray drive control circuit of microwave oven
CN108151769A (en) * 2017-11-30 2018-06-12 广东美的厨房电器制造有限公司 Door of microwave oven detection device and method
CN216414621U (en) * 2021-10-22 2022-04-29 青岛海尔电冰箱有限公司 Electromagnetic wave processing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232210A (en) * 1977-06-22 1980-11-04 Tokyo Shibaura Electric Co., Ltd. Output power control system for microwave ovens
CN202868776U (en) * 2012-10-15 2013-04-10 珠海格力电器股份有限公司 Induction cooker
CN203517920U (en) * 2013-09-27 2014-04-02 深圳麦格米特电气股份有限公司 Tray drive control circuit of microwave oven
CN108151769A (en) * 2017-11-30 2018-06-12 广东美的厨房电器制造有限公司 Door of microwave oven detection device and method
CN216414621U (en) * 2021-10-22 2022-04-29 青岛海尔电冰箱有限公司 Electromagnetic wave processing device

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