CN216414621U - Electromagnetic wave processing device - Google Patents
Electromagnetic wave processing device Download PDFInfo
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- CN216414621U CN216414621U CN202122550808.5U CN202122550808U CN216414621U CN 216414621 U CN216414621 U CN 216414621U CN 202122550808 U CN202122550808 U CN 202122550808U CN 216414621 U CN216414621 U CN 216414621U
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Abstract
The utility model provides an electromagnetic wave processing device. The electromagnetic wave processing device comprises a cylinder body which is limited with a chamber for containing an object to be processed, at least one door body which can take out the object to be processed from the chamber or can be placed in the chamber when the door body is in an opening state, an electromagnetic wave generating system and a protection circuit. The electromagnetic wave generating system is at least partially arranged in the cylinder or reaches the cylinder so as to emit electromagnetic waves to the chamber to treat the object to be treated. The protection circuit comprises at least one logic gate, the at least one logic gate is connected in series with the electromagnetic wave generation system and is configured to block the electromagnetic wave generation system when at least one of the door bodies is in an open state, electromagnetic wave leakage is further prevented, the health of a user and other electric devices around the chamber are damaged, and compared with the method of singly adopting a control method to control starting and stopping of the electromagnetic wave generation system, the protection circuit is higher in safety factor and higher in stability and reliability.
Description
Technical Field
The utility model relates to a kitchen utensil, in particular to an electromagnetic wave processing device.
Background
During the freezing process, the quality of the food is maintained, however, the frozen food needs to be thawed before processing or consumption. In order to facilitate the user to freeze and thaw food, the prior art generally defrosts food by means of electromagnetic wave processing devices.
However, when the electromagnetic wave processing apparatus is in operation, a high-voltage electromagnetic field is formed in the chamber, which is prone to cause safety hazards, such as opening of the chamber by a user during thawing. In view of the above, there is a need for a stable and reliable electromagnetic wave processing apparatus with a high safety factor.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to overcome at least one of the technical drawbacks of the prior art and to provide an electromagnetic wave processing apparatus having a high safety factor.
A further object of the utility model is to reduce production costs.
Another further object of the utility model is to save energy.
In particular, the present invention provides an electromagnetic wave processing apparatus, comprising:
a barrel defining a chamber for receiving an object to be processed;
at least one door body, which is configured to be in an opening state, and the object to be processed can be taken out of the chamber or can be placed in the chamber;
the electromagnetic wave generating system is at least partially arranged in the cylinder body or is communicated with the cylinder body so as to emit electromagnetic waves to the chamber to process the object to be processed; and
the protection circuit comprises at least one logic gate, and the at least one logic gate is connected in series with the electromagnetic wave generation system and is configured to block the electromagnetic wave generation system when at least one of the at least one door body is in an open state.
Optionally, the at least one logic gate comprises an and gate having a plurality of inputs and an output; wherein the content of the first and second substances,
one of the input end and the output end of the AND gate is connected in series with the electromagnetic wave generating system; and is
And the other at least one input end of the AND gate is configured to be at least one low level when at least one of the at least one door body is in an open state.
Optionally, the protection circuit further comprises:
the linkage switch corresponds to at least one door body and is configured to be opened when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state; and
the first pull-up resistor is set to have one end connected to a high level and the other end electrically connected with at least one input end of the AND gate respectively; wherein
And one end of the at least one ganged switch is grounded, and the other end of the at least one ganged switch is respectively connected between the at least one first pull-up resistor and the at least one input end.
Optionally, the number of the input terminals of the and gate is two, and the protection circuit further includes:
the linkage switch corresponds to at least one door body and is configured to be opened when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state; and
the first pull-up resistor is set to have one end connected to a high level and the other end electrically connected with one input end of the AND gate; wherein
The at least one linkage switch is arranged in series, one end of the linkage switch is grounded, and the other end of the linkage switch is connected between the first pull-up resistor and the input end corresponding to the first pull-up resistor.
Optionally, the electromagnetic wave generating system comprises:
an electromagnetic wave generation module configured to generate an electromagnetic wave signal; and
the controller is electrically connected with the electromagnetic wave generation module and used for controlling the starting and stopping of the electromagnetic wave generation module; wherein
The at least one logic gate is connected in series between the controller and the electromagnetic wave generation module.
Optionally, the protection circuit further comprises:
the first safety resistor is set to have one end grounded and the other end connected between the controller and the at least one logic gate; and/or
And the second safety resistor is arranged with one end grounded and the other end connected between the at least one logic gate and the electromagnetic wave generation module.
Optionally, the electromagnetic wave generating system comprises:
an electromagnetic wave generation module configured to generate an electromagnetic wave signal;
the power supply module is used for supplying power to the electromagnetic wave generation module;
a control switch configured to turn on or off a circuit between the power supply module and the electromagnetic wave generation module; and
the controller is electrically connected with the control switch and is used for controlling the on-off of the control switch; wherein
The control switch is of a normally-off type; and is
The at least one logic gate is connected in series between the controller and the control switch.
Optionally, the 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 generation module;
the at least one logic gate is connected in series between the controller and one end of the electromagnetic part of the relay; and the protection circuit further comprises:
and the pull-down resistor is set to have one end grounded and the other end electrically connected with the other end of the electromagnetic part of the relay.
Optionally, the protection circuit further comprises:
a PNP type triode, wherein an emitting electrode of the PNP type triode is electrically connected with one end of the electromagnetic part of the relay, a base electrode of the PNP type triode is electrically connected with the output end of the at least one logic gate, and a collector electrode of the PNP type triode is grounded; and
and the second pull-up resistor is set to have one end connected to a high level and the other end connected between the emitting electrode of the triode and the electromagnetic part of the relay.
Optionally, the electromagnetic wave processing apparatus further includes:
and the refrigerating system is used for providing cold energy for the electromagnetic wave processing device.
The electromagnetic wave processing device is provided with the protection circuit, so that the electromagnetic wave generating system can be blocked when the door body is in an open state, the electromagnetic wave leakage is further prevented, the health of a user and other electric devices around the chamber are damaged, and compared with the method of singly adopting a control method to control the starting and stopping of the electromagnetic wave generating system, the electromagnetic wave processing device is higher in safety coefficient and higher in stability and reliability.
Furthermore, the electromagnetic wave generating system is switched on and off through the AND gate and the linkage switch reflecting the opening and closing states of the door body, the structure is simple, stable and reliable, the AND gate can be connected with the electromagnetic wave generating system in series firstly, and then is connected with the linkage switch during the whole machine assembly, the modularized production is facilitated, the electromagnetic wave generating system is suitable for different machine types, and the production cost is reduced.
Furthermore, the protection circuit is configured to conduct or block the power supply from the power supply module to the electromagnetic wave generation module, so that the safety of the electromagnetic wave processing device is further improved, the electromagnetic wave generation module is prevented from being in a standby state for a long time, the unexpected electric energy loss is avoided, and the energy is saved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of an electromagnetic wave processing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a protection circuit according to one embodiment of the present invention;
FIG. 3 is a schematic block 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 apparatus according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic configuration diagram of an electromagnetic wave processing apparatus 100 according to an embodiment of the present invention. Referring to fig. 1, an electromagnetic wave processing apparatus 100 may include a cylinder 110, at least one door, and an electromagnetic wave generating system. In the present invention, at least one is one, two, or more than two.
The barrel 110 may define a chamber 111 for receiving the object 180 to be processed. The barrel 110 may be provided with an access port communicating with the chamber 111 so that the object 180 to be processed can be accessed.
The one or more door bodies may be configured such that the object to be processed 180 can be taken out of the chamber 111 or can be placed in the chamber 111 while each of the one or more door bodies is in an open state.
The electromagnetic wave generating system may be at least partially disposed within the barrel 110 or access the barrel 110 to emit electromagnetic waves into the barrel 110 to treat (e.g., heat) the object 180 to be treated.
The electromagnetic wave generation system may include an electromagnetic wave generation module 131, a radiation antenna 132 electrically connected to the electromagnetic wave generation module 131, a power supply module 133 for supplying power to the electromagnetic wave generation module 131, and a controller 134.
The electromagnetic wave generating module 131 may be configured to generate an electromagnetic wave signal, and the radiation antenna 132 may be disposed in the cylinder 110 to generate an electromagnetic wave in the cylinder 110 to process the object 180 to be processed in the cylinder 110.
Controller 134 may be configured to be electrically connected to electromagnetic wave generating module 131 to control on/off of electromagnetic wave generating module 131 and adjust operating parameters of electromagnetic wave generating module 131.
Fig. 2 is a schematic structural diagram of the protection circuit 140 according to an embodiment of the present invention (IN fig. 2 and 3, "IN" represents "input"; "OUT" represents "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.
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 is configured to block the electromagnetic wave generating system when at least one of the door bodies is in an open state, so that electromagnetic wave leakage is prevented, the health of a user and other electric devices around the chamber 111 are damaged, and compared with the method of singly adopting a control method to control the starting and stopping of the electromagnetic wave generating system, the safety coefficient is higher, and the stability and the reliability are higher.
The logic gates may include an and gate N1. The and gate N1 may have a plurality of input terminals and an output terminal, and when the inputs of the plurality of input terminals are all high level, the output of the output terminal is high level; when the input of one or more of the plurality of input terminals is low, the output of the output terminal is low.
One input end and an output end of the and gate N1 may be connected in series to the electromagnetic wave generating system, and the other at least one input end is configured such that at least one of the door bodies is at a low level when the at least one of the door bodies is in an open state, to block the electromagnetic wave generating system when the at least one of the door bodies is in the open state.
In some embodiments, the protection circuit 140 may further include at least one ganged switch S1 and at least one first pull-up resistor R1.
The at least one interlock switch S1 may correspond to at least one door body, and be configured to be opened when the corresponding door body is in a closed state and to be closed when the corresponding door body is in an open state.
The at least one first pull-up resistor R1 may be configured to have one end connected to a high level and the other end electrically connected to at least one input terminal of the and gate N1, respectively.
The at least one ganged switch S1 may be set to have one end grounded and the other end connected between the at least one first pull-up resistor R1 and the at least one input terminal, respectively.
That is, 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 ganged switches S1. When the number of the ganged switches S1 is plural, one end of each of the first pull-up resistors R1 may be connected to a high level, and the other end of each of the first pull-up resistors R1 may be electrically connected to the input ends of the and gate N1, and one end of each of the ganged switches S1 may be grounded, and the other end of each of the ganged switches S1 may be connected between one first pull-up resistor R1 and one input end of the and gate N1.
In other embodiments, the number of inputs of the and gate N1 may be only two. The protection circuit 140 may further include at least one ganged switch S1 and a first pull-up resistor R1.
The at least one interlock switch S1 may correspond to at least one door body, and be configured to be opened when the corresponding door body is in a closed state and to be closed when the corresponding door body is in an open state.
The first pull-up resistor R1 may be set to have one end connected to a high level and the other end electrically connected to one input terminal of the and gate N1.
At least one ganged switch S1 may be arranged in series, and have one end grounded and the other end connected between the corresponding input ends of the first pull-up resistor R1 and the first pull-up resistor R1.
That is, in the case where the number of the ganged switches S1 is plural, the plural ganged 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.
In the present invention, the number of the ganged switches S1 may be the same as the number of the door bodies. When the number of the door bodies is plural, the number of the interlock switches S1 may be one, and the interlock switches S1 are opened when all the door bodies are in the closed state and closed when any one of the door bodies is in the open state.
In some embodiments, the logic gate of the protection circuit 140 may be connected in series between the controller 134 and the electromagnetic wave generation module 131, so that when any door body is in an open state, the controller 134 cannot send a start instruction to the electromagnetic wave generation module 131.
The protection circuit 140 may further include a first safety resistor R2 and a second safety resistor R3. The first safety resistor R2 may be set to have one end grounded and the other end connected between the controller 134 and all logic gates, so as to improve the circuit safety and stability.
The second safety resistor R3 may be set to have one end grounded and the other end connected between all logic gates and the electromagnetic wave generating module 131, so as to improve the safety and stability of the circuit.
In other embodiments, the electromagnetic wave generation system may further include a control switch K1 for turning on or off a circuit between the power supply module 133 and the electromagnetic wave generation 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 of normally-off type. The logic gate of the protection circuit 140 may be connected in series between the controller 134 and the control switch K1, so that when any one of the door bodies is in an open state, the controller 134 cannot send a command 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. Referring to fig. 3, the control switch K1 may be an electromagnetic relay.
The switching part of the relay may be connected in series between the power supply module 133 and the electromagnetic wave generation module 131. The logic gate 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 also include a pull-down resistor R4. The pull-down resistor R4 may be set to have one end grounded and the other end electrically connected to the other end of the electromagnetic part of the relay.
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 may be configured to be electrically connected to one end of the electromagnetic portion of the relay, the base may be electrically connected to the output of all logic gates, and the collector may be configured to be grounded to amplify the voltage at the output of the logic gates.
The second pull-up resistor R5 may be configured to have one end tied in high and the other end tied between the emitter of the transistor Q1 and the electromagnetic portion of the relay.
The protection circuit 140 may also include a first safety resistor R2. The first safety resistor R2 may be set to have one end connected to ground and the other end connected between the controller 134 and all logic gates to improve circuit safety and stability.
In the embodiment shown in fig. 1, the electromagnetic wave processing device 100 has only one door 120. Accordingly, the and gate N1 of the protection circuit 140 has only two inputs, and the protection circuit 140 has only one ganged switch S1.
Fig. 4 is a schematic cross-sectional view of an electromagnetic wave processing apparatus 100 according to another embodiment of the present invention. Referring to fig. 4, the electromagnetic wave processing device 100 may further include a case 150 defining at least one storage compartment 151, and a refrigeration system 170 (e.g., a refrigerator) for providing cold to the storage compartment 151.
The cylinder 110 may be disposed in one storage compartment 151 of the cabinet 150, and the door 160 may be configured to open and close a loading/unloading opening of the storage compartment 151. That is, the electromagnetic wave processing device 100 may include two door bodies.
The protection circuit 140 may be configured to block the electromagnetic wave generation system when any one of the door 120 and the door 160 is in an open state, and to turn on the electromagnetic wave generation system when both the door 120 and the door 160 are in a closed state.
The protection circuit 140 may be interlocked with the open/close state of only one of the door 120 and the door 160.
In some embodiments, the controller 134 may be configured to control the electromagnetic wave generating system to adjust the frequency of the electromagnetic wave signal generated by the electromagnetic wave generating system within a preset candidate frequency interval every preset time interval t, so that the electromagnetic wave generating system satisfies a preset matching condition, record the frequency of the electromagnetic wave signal satisfying the preset matching condition each time and calculate a variation of the frequency of the electromagnetic wave signal satisfying the preset matching condition from a preset matching time to the current time, and control the electromagnetic wave generating system to stop operating when the variation is less than or equal to a preset variation threshold S.
The inventor of the present application has creatively recognized that the variation of the frequency for matching within the same time is relatively small, and the variation is significantly reduced only in the phase change region close to water and is almost affected by the frequency matching degree, and the electromagnetic wave generation system is controlled to stop working when the frequency variation satisfying the frequency matching condition is less than or equal to the preset variation threshold S, so that the heating of food can be stopped in the state desired by the user, and the electromagnetic wave generation system is particularly suitable for food thawing, and can prevent the object to be processed 180 from being excessively thawed, and the temperature when thawing is completed is generally-4 to-2 ℃, so that when the object to be processed 180 is meat, blood water generated by thawing can be avoided, and the cutting by the user is easy.
In the present invention, the predetermined time interval t may be 25s to 40s, such as 25s, 30s, or 40s, so as to avoid the occurrence of misjudgment.
The alternative frequency interval may be 400MHz to 500MHz to ensure the temperature uniformity of the object to be processed 180 and the heating efficiency of the object to be processed 180.
The preset matching times can be greater than or equal to 2, for example, 3, so as to avoid the occurrence of misjudgment. The preset matching frequency may also be 1, that is, the variation is a difference between the frequencies of the electromagnetic wave signals that satisfy the preset matching condition at two adjacent times.
The power of the electromagnetic wave signal in the frequency matching process may be 5% to 10% of the power of the electromagnetic wave signal in the normal heating process to reduce the adverse effect on the object 180 to be processed.
In some embodiments, the controller 134 may be configured to use the minimum value of the preset candidate frequency interval to the frequency of the electromagnetic wave signal satisfying the preset matching condition last time as the candidate frequency interval of the current frequency matching, and calculate the difference between the frequencies of the electromagnetic wave signals satisfying the preset matching condition last time before the preset matching times and the frequency of the electromagnetic wave signal satisfying the preset matching condition this time as the variable quantity, so as to quickly and accurately determine the frequency of the electromagnetic wave signal satisfying the preset matching condition, thereby reducing the influence of the frequency matching process on the quality of the object 180 to be processed, and improving the timeliness of determining whether to stop heating.
In other embodiments, the controller 134 may be configured to calculate the difference (absolute value) between the frequencies of every two adjacent electromagnetic wave signals satisfying the predetermined matching condition, and then add all the differences to obtain the variation, so as to improve the accuracy.
In some embodiments, when frequency matching is performed for the first time, the matching condition may be: the power of the reflected wave signal returned to the electromagnetic wave generating system is minimum, so that the subsequent frequency matching is facilitated, and the time for the subsequent frequency matching is shortened.
The controller 134 may be configured to determine the remaining heating time T of the object to be processed 180 according to a preset comparison table according to the frequency of the electromagnetic wave signal that first satisfies the preset matching condition, and control the electromagnetic wave generating system to stop working when the heating time of the object to be processed 180 is greater than or equal to the determined remaining heating time T, so as to further ensure that the heated object to be processed 180 has excellent quality. Wherein, the comparison table records the corresponding relation between different frequencies and the residual heating time T.
In other embodiments, when performing frequency matching for the first time and within a preset matching time close to the first time, the matching condition may be: the power of the reflected wave signal returned to the electromagnetic wave generating system is minimized.
The controller 134 may be configured to determine the remaining heating time T of the object to be processed 180 according to a preset comparison table according to a sum of difference values (absolute values) of frequencies of every two adjacent electromagnetic wave signals meeting the preset matching condition within the preset matching times close to the first time and after the first time, and control the electromagnetic wave generating system to stop working when the heating time of the object to be processed 180 is greater than or equal to the determined remaining heating time T, so as to stop heating the object to be processed 180 more accurately, and further ensure that the heated object to be processed 180 has excellent quality. Wherein, the comparison table records the corresponding relation between different sum of differences and the residual heating time T.
In some further embodiments, after determining the remaining heating time T, the matching condition may be: the ratio of the power of the reflected wave signal returned to the electromagnetic wave generating system to the power of the incident wave signal propagated to the cylinder 110 by the electromagnetic wave generating system is greater than or equal to a preset ratio threshold. The predetermined ratio threshold may be 70% to 80%.
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 frequency matching is finished, so that the adverse effect on the object to be processed 180 is reduced, and the heating efficiency is improved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An electromagnetic wave processing apparatus, comprising:
a barrel defining a chamber for receiving an object to be processed;
at least one door body, which is configured to be in an opening state, and the object to be processed can be taken out of the chamber or can be placed in the chamber;
the electromagnetic wave generating system is at least partially arranged in the cylinder body or is communicated with the cylinder body so as to emit electromagnetic waves to the chamber to process the object to be processed; and
the protection circuit comprises at least one logic gate, and the at least one logic gate is connected in series with the electromagnetic wave generation system and is configured to block the electromagnetic wave generation system when at least one of the at least one door body is in an open state.
2. The electromagnetic wave processing apparatus according to claim 1,
the at least one logic gate comprises an AND gate having a plurality of inputs and an output; wherein the content of the first and second substances,
one of the input end and the output end of the AND gate is connected in series with the electromagnetic wave generating system; and is
And the other at least one input end of the AND gate is configured to be at least one low level when at least one of the at least one door body is in an open state.
3. The electromagnetic wave processing apparatus according to claim 2, characterized in that the protection circuit further comprises:
the linkage switch corresponds to at least one door body and is configured to be opened when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state; and
the first pull-up resistor is set to have one end connected to a high level and the other end electrically connected with at least one input end of the AND gate respectively; wherein
And one end of the at least one ganged switch is grounded, and the other end of the at least one ganged switch is respectively connected between the at least one first pull-up resistor and the at least one input end.
4. The electromagnetic wave processing apparatus of claim 2, wherein the number of the input terminals of the and gate is two, the protection circuit further comprises:
the linkage switch corresponds to at least one door body and is configured to be opened when the corresponding door body is in a closed state and closed when the corresponding door body is in an open state; and
the first pull-up resistor is set to have one end connected to a high level and the other end electrically connected with one input end of the AND gate; wherein
The at least one linkage switch is arranged in series, one end of the linkage switch is grounded, and the other end of the linkage switch is connected between the first pull-up resistor and the input end corresponding to the first pull-up resistor.
5. The electromagnetic wave processing apparatus according to claim 1, characterized in that the electromagnetic wave generation system includes:
an electromagnetic wave generation module configured to generate an electromagnetic wave signal; and
the controller is electrically connected with the electromagnetic wave generation module and used for controlling the starting and stopping of the electromagnetic wave generation module; wherein
The at least one logic gate is connected in series between the controller and the electromagnetic wave generation module.
6. The electromagnetic wave processing apparatus according to claim 5, characterized in that the protection circuit further comprises:
the first safety resistor is set to have one end grounded and the other end connected between the controller and the at least one logic gate; and/or
And the second safety resistor is arranged with one end grounded and the other end connected between the at least one logic gate and the electromagnetic wave generation module.
7. The electromagnetic wave processing apparatus according to claim 1, characterized in that the electromagnetic wave generation system includes:
an electromagnetic wave generation module configured to generate an electromagnetic wave signal;
the power supply module is used for supplying power to the electromagnetic wave generation module;
a control switch configured to turn on or off a circuit between the power supply module and the electromagnetic wave generation module; and
the controller is electrically connected with the control switch and is used for controlling the on-off of the control switch; wherein
The control switch is of a normally-off type; and is
The at least one logic gate is connected in series between the controller and the control switch.
8. The electromagnetic wave processing apparatus according to claim 7,
the 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 generation module;
the at least one logic gate is connected in series between the controller and one end of the electromagnetic part of the relay; and the protection circuit further comprises:
and the pull-down resistor is set to have one end grounded and the other end electrically connected with the other end of the electromagnetic part of the relay.
9. The electromagnetic wave processing apparatus according to claim 8, characterized in that the protection circuit further comprises:
a PNP type triode, wherein an emitting electrode of the PNP type triode is electrically connected with one end of the electromagnetic part of the relay, a base electrode of the PNP type triode is electrically connected with the output end of the at least one logic gate, and a collector electrode of the PNP type triode is grounded; and
and the second pull-up resistor is set to have one end connected to a high level and the other end connected between the emitting electrode of the triode and the electromagnetic part of the relay.
10. The electromagnetic wave processing apparatus according to claim 1, further comprising:
and the refrigerating system is used for providing cold energy for the electromagnetic wave processing device.
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| CN202122550808.5U CN216414621U (en) | 2021-10-22 | 2021-10-22 | Electromagnetic wave processing device |
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| WO2023066000A1 (en) * | 2021-10-22 | 2023-04-27 | 青岛海尔电冰箱有限公司 | Electromagnetic wave processing apparatus |
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| WO2023066000A1 (en) * | 2021-10-22 | 2023-04-27 | 青岛海尔电冰箱有限公司 | Electromagnetic wave processing apparatus |
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