CN109548215B - Microwave equipment - Google Patents
Microwave equipment Download PDFInfo
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- CN109548215B CN109548215B CN201811543916.6A CN201811543916A CN109548215B CN 109548215 B CN109548215 B CN 109548215B CN 201811543916 A CN201811543916 A CN 201811543916A CN 109548215 B CN109548215 B CN 109548215B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/68—Circuits for monitoring or control
- H05B6/681—Circuits comprising an inverter, a boost transformer and a magnetron
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/68—Circuits for monitoring or control
- H05B6/686—Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators
Abstract
The embodiment of the invention discloses microwave equipment, which consists of a microwave generator, a microwave regulator and a microwave monitor which are sequentially connected in series, wherein the microwave generator is connected with an external power supply and used for converting an input electric signal into an initial microwave signal, the microwave regulator converts the initial microwave signal into a multi-directional and amplified microwave output signal, and the output end of the microwave monitor is connected with the control end of the microwave generator and can generate a first control signal according to the microwave output signal and send the first control signal to the microwave generator, so that the microwave generator can adjust the converted initial microwave signal according to the first control signal. In the embodiment of the invention, the microwave monitor is used for acquiring the microwave output signal and adjusting the microwave generator, so that the microwave generator can adjust and generate various initial microwave signals according to the current working condition of the microwave equipment, and the stability of the microwave output signal is further ensured.
Description
Technical Field
The invention relates to the technical field of microwave heating, in particular to microwave equipment.
Background
The microwave is an electromagnetic wave with the frequency ranging from 300MHZ to 300GHZ, and can penetrate through the surface of the medium to act on molecules in the medium, so that different molecules collide with each other and generate heat. The existing microwave heating method generally adopts a high-voltage transformer and a high-voltage rectifier to convert 220V alternating-current voltage into about 4000V direct-current voltage, a microwave generator can convert electric energy generated by the direct-current voltage into microwave energy by taking the about 4000V direct-current voltage as an input source, and then the microwave energy is transmitted to an inner cavity of a furnace through a waveguide tube to heat a medium in the inner cavity.
In the prior art, a magnetron is generally used as a microwave generator, and a microwave stirrer is arranged near an inlet of an inner cavity of a furnace, so that microwave energy generated by the magnetron can be transmitted to different directions to realize uniform heating of a medium. However, because hardware devices such as magnetrons and stirrers occupy a large space, existing microwave heating devices may be bulky, inconvenient to carry, and costly. In addition, in some application scenarios, the microwave energy generated by the microwave heating device varies greatly during the adjustment process of the magnetron voltage, so that the initial microwave signal generated varies greatly, and the microwave output signal generated by the microwave heating device is unstable.
In summary, a microwave apparatus is needed to achieve stability of the microwave output signal.
Disclosure of Invention
The embodiment of the invention provides microwave equipment, which is used for realizing the stability of microwave output signals.
The embodiment of the invention provides microwave equipment, which comprises:
the microwave control system comprises a microwave generator, a microwave regulator and a microwave monitor which are sequentially connected in series, wherein the output end of the microwave monitor is connected with the control end of the microwave generator;
the microwave generator is connected with an external power supply and used for converting an input electric signal into an initial microwave signal;
the microwave regulator is used for converting the initial microwave signal into a multi-azimuth amplified microwave output signal;
the microwave monitor is used for generating a first control signal according to the microwave output signal and sending the first control signal to the microwave generator;
the microwave generator is further used for adjusting the converted initial microwave signal according to the first control signal.
In the embodiment of the invention, the microwave generator is adopted to generate an initial microwave signal, and the microwave regulator is used to generate a multi-directional and amplified microwave signal, so that hardware equipment such as a magnetron, a stirrer and the like can be avoided, the volume of the microwave equipment can be reduced, and the cost can be saved; in addition, the microwave monitor can control the microwave generator according to the microwave output signal, so that the microwave generator can output different initial microwave signals according to the current working condition of the microwave equipment, and the heating stability of the microwave equipment can be ensured.
Optionally, the microwave power generator includes a power supply regulation module and a microwave conversion module connected in series;
the power supply adjusting module is used for adjusting the electric signal input to the microwave conversion module by the external power supply according to the first control signal;
and the microwave conversion module is used for converting the electric signal input by the power supply regulation module into the initial microwave signal.
In the embodiment of the invention, the microwave generator consists of the power supply adjusting module and the microwave conversion module, the power supply adjusting module adjusts the electric signals input by the microwave conversion module, so that the microwave conversion module can generate different initial microwave signals under the action of the electric signals with different sizes, and the initial microwave signals can have different frequencies, phases and amplitudes, thereby enabling the microwave equipment to be applied to various occasions such as household microwave ovens or industrial microwave heating and the like.
Optionally, the microwave monitor comprises an acquisition module and a processing module;
the acquisition module is used for monitoring the microwave output signal through a first interface;
and the processing module is used for generating the first control signal according to the microwave output signal and sending the first control signal to the microwave generator through a second interface.
In the embodiment of the invention, the microwave output signal is acquired through the acquisition module and the first interface, so that the microwave monitor can monitor the current working condition of the microwave equipment in time, the processing module can generate different first control signals according to the current working condition of the microwave monitor, and the first control signals are sent to the microwave generator through the second interface, and therefore, the power supply adjusting module of the microwave generator can adjust the electric signal input from the external power supply to the microwave conversion module according to the first control signals, and the initial microwave signal generated by the microwave conversion module is changed.
Optionally, the output end of the microwave monitor is further connected to the control end of the microwave regulator;
the microwave monitor is further configured to generate a second control signal according to the microwave output signal, and send the second control signal to the microwave regulator through a third interface;
the microwave regulator is further configured to adjust the microwave output signal according to the second control signal.
In the embodiment of the invention, the microwave monitor is connected with the control end of the microwave regulator, so that the microwave monitor can control the microwave regulator according to the microwave output signal, the microwave regulator can output microwave output signals in various directions and amplified according to the current working condition of the microwave equipment, and the technical problem that the power of the initial microwave signal converted by the microwave generator cannot meet the requirement can be avoided. In addition, the microwave monitor can send the first control information to the microwave generator through the second interface and send the second control information to the microwave regulator through the third interface, so that the microwave generator and the microwave regulator can be controlled respectively, and the accuracy of microwave output signal regulation is further realized.
Optionally, the microwave conditioner comprises a multiplex conditioning bank; each path of adjusting group at least comprises a phase adjusting module and a power amplifier adjusting module;
the phase adjusting module is used for adjusting the phase of the initial microwave signal, wherein the phases of the microwave output signals output by the adjusting groups are different from each other;
and the power amplifier adjusting module is used for amplifying the initial microwave signal.
In the embodiment of the invention, the initial microwave signals can be respectively regulated through each path of the multi-path regulating group by adopting the multi-path regulating group and arranging the phase regulating module and the power amplifier regulating module in each path of the multi-path regulating group, meanwhile, the multi-path regulating group can also divide the total microwave output signals into a plurality of paths of microwave output signals for output, and each path of microwave output signals can have own phase and amplification factor, so that the damage of microwave equipment caused by the overlarge power of the total microwave output signals can be avoided, and the multi-path regulating group can be applied to the occasions of outputting high-power microwave signals.
Optionally, the acquisition module is configured to detect microwave output signals output by each of the adjustment groups;
and the processing module is used for determining second control signals of each path of regulating group according to the microwave output signals output by each path of regulating group.
In the embodiment of the invention, the acquisition module is used for detecting the microwave output signals output by each path of regulating group, so that the microwave monitor can monitor the current working condition of each path of regulating group in the multi-path regulating group in time, the processing module is used for sending the second control signal of each path of regulating group to the corresponding regulating group, the phase and the power amplifier of the initial microwave signal corresponding to each path of regulating group in the multi-path regulating group can be regulated, and then, the multi-path microwave output signals with different phases and amplification can be generated, and the application occasions of the microwave equipment are increased.
Optionally, the adjusting group further comprises an amplitude adjusting module;
and the microwave regulator is used for regulating the amplitude regulating module according to the second control signal so as to regulate the microwave output signals output by each path.
In the embodiment of the invention, the amplitude adjusting module is arranged in the multi-path adjusting group, so that the amplitude of the initial microwave signal corresponding to each path of adjusting group in the multi-path adjusting group can be adjusted according to the working requirement, and thus, multi-path microwave output signals with different amplitudes are generated, and the micro-blog equipment is heated more flexibly.
Optionally, the adjusting group further includes a level adjusting module;
and the microwave regulator is used for regulating the level regulating module according to the second control signal so as to regulate the microwave output signals output by each path.
In the embodiment of the invention, the level adjusting module is arranged in the multi-path adjusting group, so that each path of adjusting group in the multi-path adjusting group respectively takes the reference level set by each path of adjusting group as a measuring standard to adjust the level of the initial microwave signal corresponding to each path of adjusting group in the multi-path adjusting group, thereby generating the output microwave signal within a safety range, ensuring the safety of each path of adjusting group and further ensuring the safety of microwave equipment.
Optionally, the regulation group further comprises a first switch;
and the microwave regulator is used for controlling the working state of the first switch according to the second control signal so as to regulate the microwave output signals output by each path.
In the embodiment of the invention, the first switches are arranged in the multiple paths of regulating groups, so that when the temperature generated by the microwave output signal of a certain path of regulating group is monitored to be higher or the reverse output power of the microwave output signal of a certain path of regulating group is monitored to be higher, the state of the first switch of each path of regulating group in the multiple paths of regulating groups can be switched, and the corresponding regulating group is closed, thereby ensuring the safety of the microwave regulator and further ensuring the safety of microwave equipment.
Optionally, the microwave regulator further comprises a voltage controlled oscillator and a second switch connected in series;
and the microwave regulator is used for controlling the working state of the second switch according to the second control signal so as to regulate the microwave output signals output by each path.
In the embodiment of the invention, the voltage-controlled oscillator and the second switch are arranged in the microwave regulator, so that the microwave signal generated by the microwave generator can oscillate, thereby generating the resonant microwave signal which meets the requirement, and when the temperature generated by the microwave output signal of the microwave regulator is monitored to be too high, the state of the second switch in the microwave regulator can be converted, the microwave regulator is closed, thereby ensuring the safety of the microwave regulator and further ensuring the safety of microwave equipment.
In the above embodiment of the present invention, the microwave apparatus comprises a microwave generator, a microwave regulator and a microwave monitor, which are sequentially connected in series, wherein the microwave generator is connected to an external power supply, and is configured to convert an input electrical signal into an initial microwave signal, convert the initial microwave signal into a multi-directional and amplified microwave output signal through the microwave regulator, an output end of the microwave monitor is connected to a control end of the microwave generator, and is capable of generating a first control signal according to the microwave output signal and sending the first control signal to the microwave generator, and the microwave generator is further capable of adjusting the converted initial microwave signal according to the first control signal. In the embodiment of the invention, the microwave generator is adopted to generate an initial microwave signal, and the microwave regulator is used to generate a multi-directional and amplified microwave signal, so that hardware equipment such as a magnetron, a stirrer and the like can be avoided, the volume of the microwave equipment can be reduced, and the cost can be saved; in addition, the microwave monitor can control the microwave generator according to the microwave output signal, so that the microwave generator can output different initial microwave signals according to the current working condition of the microwave equipment, and the heating stability of the microwave equipment can be ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 3a is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 3b is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 4a is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 4b is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 4c is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 4d is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 4e is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a microwave apparatus according to an embodiment of the present invention;
fig. 6 is a schematic flowchart corresponding to a microwave monitoring method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a microwave apparatus provided in an embodiment of the present invention, the microwave apparatus may be used for heating a product or generating an industrial microwave signal, and the apparatus includes:
a microwave generator 100 connected to an external power source for converting an input electric signal into an initial microwave signal; a microwave regulator 200 for converting the initial microwave signal into a multi-directional and amplified microwave output signal; the microwave monitor 300 is used for generating a first control signal according to the microwave output signal and sending the first control signal to the microwave generator; the microwave generator 100 is further configured to adjust the converted initial microwave signal according to a first control signal.
In particular implementations, the microwave generator 100 may convert the electrical signal from the power supply input into an initial microwave signal, wherein the power of the initial microwave signal may be related to the electrical signal from the power supply input, e.g., in one example, the greater the electrical signal from the power supply input, the greater the power of the initial microwave signal generated by the microwave generator 100. However, the power of the initial microwave signal generated by the microwave generator 100 has a certain range, and in some cases (such as industrial microwave heating), the power of the initial microwave signal generated by the microwave generator 100 may not meet the heating requirement of the microwave device. At this time, the initial microwave signal may be adjusted by the microwave adjuster 200, and converted into a microwave output signal having different directions and being amplified, so that the heating requirement of the microwave device may be satisfied.
In the embodiment of the invention, the initial microwave signal is generated by the microwave generator, and the multi-directional and amplified microwave signal is generated by the microwave regulator, so that hardware equipment such as a magnetron, a stirrer and the like can be avoided, the size of the microwave equipment can be reduced, and the cost can be saved.
Further, for the microwave output signal output by the microwave regulator 200, the microwave monitor 300 may collect the microwave output signal and generate a first control signal, and then send the first control signal to the microwave generator 100, at this time, the microwave generator 100 may further adjust the converted initial microwave signal according to the first control signal, so that the microwave generator 100 may generate a plurality of initial microwave signals, thereby increasing the application occasions of the microwave device.
In the embodiment of the invention, the microwave monitor can control the microwave generator according to the microwave output signal, so that the microwave generator can output different initial microwave signals according to the current working condition of the microwave equipment, and the heating stability of the microwave equipment can be ensured. Further, the initial microwave signal generated by the microwave generator is adjusted by the microwave adjuster, so that microwave output signals with different directions and power magnitudes can be generated, and the application occasions of the microwave equipment are increased.
Fig. 2 is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention, and as shown in fig. 2, a microwave generator 100 may include a power supply adjusting module 110 and a microwave converting module 120 connected in series, where the power supply adjusting module 110 may adjust an electrical signal input from an external power supply to the microwave converting module according to a first control signal, and the microwave converting module 120 may convert the electrical signal input from the power supply adjusting module 110 into an initial microwave signal. Specifically, there may be multiple ways to adjust the electrical signal input from the external power source to the microwave conversion module 120, and in one possible implementation manner, a phase-locked loop chip may be used as a control chip of the microwave generator, and the frequency and the phase of the internal oscillation signal of the phase-locked loop may be adjusted according to the first control signal, so as to implement automatic tracking of the initial microwave signal frequency on the frequency of the microwave output signal included in the first control signal. In one example, the power supply adjusting module 110 may adjust the electric signal input from the external power supply to the microwave converting module 120 by changing configuration parameters of various registers included in the first control signal, so that the microwave converting module 120 may generate initial microwave signals with different frequencies. In the embodiment of the present invention, by configuring the parameters of the registers in the microwave generator 100, the microwave generator 100 can generate the initial microwave signal at any frequency point in the 400 MHZ-3000 MHZ frequency band.
In the embodiment of the invention, the power supply adjusting module and the microwave conversion module are adopted, so that the microwave generator can generate the initial microwave signals corresponding to the electric signals input into the microwave conversion module by the power supply adjusting module, and the initial microwave signals may have different frequencies, phases and amplitudes, thereby the microwave equipment can be applied to various occasions such as household microwave ovens or industrial microwave heating.
Fig. 3a is a schematic structural diagram of a microwave apparatus according to an embodiment of the present invention, as shown in fig. 3a, a microwave monitor 300 may include an acquisition module 310 and a processing module 320, where the acquisition module 310 may monitor a microwave output signal through a first interface 301, and the processing module 320 may generate a first control signal according to the microwave output signal and send the first control signal to the microwave generator 100 through a second interface 302.
In an embodiment of the present invention, the acquisition module 310 may have a plurality of ways to monitor the microwave output signal, and in a possible implementation manner, the acquisition module 310 may monitor the microwave regulator 200 according to a set period, or may monitor the microwave regulator 200 in real time, in this case, the acquisition module 310 may acquire the working parameter of the output end of the microwave regulator 200 through the first interface 301, where the working parameter of the output end of the microwave regulator 200 may be used to characterize the characteristic of the output microwave signal of the microwave regulator 200, and specifically, the working parameter of the output end of the microwave regulator 200 may include any one or any combination of the following: forward microwave power, reverse microwave power, operating temperature, and operating current.
Further, the processing module 320 may generate the first control signal according to the microwave output signal obtained by the collecting module 310. Here, the first control signal may be determined in various manners, and in a possible implementation manner, the first control signal may be determined by the processing module 320 according to characteristics of the microwave output signal, for example, the processing module 320 may compare the forward output power of the output end of the microwave regulator 200, which is obtained by the collecting module 310, with the power of the initial microwave signal, determine the stability of the output microwave signal of the microwave regulator 200, and further determine the first control signal; or, the processing module 320 may determine the efficiency of outputting the microwave signal by the microwave regulator 200 according to the magnitude of the reverse output power of the output end of the microwave regulator 200 acquired by the acquisition module 310, so as to determine the first control signal; or, the processing module 320 may determine whether the output working temperature of the microwave regulator 200 meets the requirement according to the working temperature of the output end of the microwave regulator 200 acquired by the acquisition module 310, and further determine the first control signal; or, the processing module 320 may determine whether the working component of the microwave regulator 200 is abnormal according to the magnitude of the working current of the output end of the microwave regulator 200 acquired by the acquisition module 310, and further determine the first control signal; still alternatively, the processing module 320 may jointly determine the first control signal according to four factors, i.e., the forward output power, the reverse microwave power, the operating temperature, and the operating current, at the output end of the microwave regulator 200.
In a specific implementation, the processing module 320 may further transmit the first control signal to the microwave generator 100 through the second interface 302, and specifically, the second interface 302 of the microwave monitor 300 may be connected with the power supply adjusting module 110 of the microwave generator 100, so that the processing module 320 can transmit the first control signal to the power supply adjusting module 110 of the microwave generator 100 through the second interface 302.
In the embodiment of the invention, the microwave output signal is acquired through the acquisition module and the first interface, so that the microwave monitor can monitor the current working condition of the microwave equipment in time, the processing module can generate different first control signals according to the current working condition of the microwave monitor, and the first control signals are sent to the microwave generator through the second interface, and therefore, the power supply adjusting module of the microwave generator can adjust the electric signal input from the external power supply to the microwave conversion module according to the first control signals, and the initial microwave signal generated by the microwave conversion module is changed.
Fig. 3b is a schematic structural diagram of a microwave device according to an embodiment of the present invention, and as shown in fig. 3b, an output end of the microwave monitor 300 may further be connected to a control end of the microwave regulator 200, so that the microwave monitor 300 may generate a second control signal according to the microwave output signal and send the second control signal to the microwave regulator 200 through the third interface 303, so that the microwave regulator 200 may adjust the microwave output signal according to the second control signal.
In a specific implementation, the microwave monitor 300 may be obtained in various manners, and in one possible implementation manner, the microwave monitor 300 may be an existing device purchased as needed, and at this time, the functions of controlling the microwave generator 100 and the microwave regulator 200 in the embodiment of the present invention may be implemented by using some functional components in the microwave monitor 300; in yet another possible implementation, the microwave monitor 300 may be a minimum micro-control system that is set according to the operational needs to ensure the micro-control unit operates. For example, in an example, the microwave monitor 300 may be a micro control system designed based on an AVRXMEGA chip of ATMEL corporation, where the inside of the micro control system may include processors atasd 20G16, 8K static random access memory, 8K (boot) +64K (app) of AVRCPU kernel, 12-way analog-to-digital converter, 1-way digital-to-analog converter, 32-way pulse width modulation, 16 general input/output interfaces, 8 sets of serial ports, and the like, and meanwhile, the outside of the microwave monitor may include an IIC communication interface, 1-way on-chip digital-to-analog converter, 7-way on-chip pulse width modulation, 6-way analog-to-digital converter, 1 set of serial peripheral interfaces, a plurality of general input/output interfaces, and the like.
In the embodiment of the invention, the micro control system which ensures the minimum work of the micro control unit is used as the microwave monitor, so that the microwave monitor can be ensured to normally complete the monitoring task on one hand, and the structural arrangement of the microwave monitor can be simplified on the other hand, each functional part in the microwave monitor can play a larger role, and the equipment development cost can be saved. In addition, the microwave monitor is connected with the control end of the microwave regulator, so that the microwave monitor can control the microwave regulator according to the microwave output signal, the microwave regulator can output microwave output signals in various directions and amplified according to the current working condition of the microwave equipment, and the technical problem that the power of the initial microwave signal converted by the microwave generator cannot meet the requirement can be solved. And the microwave monitor can send the first control information to the microwave generator through the second interface and send the second control information to the microwave regulator through the third interface, so that the microwave generator and the microwave regulator can be respectively controlled, and the accuracy of microwave output signal regulation is further realized.
Fig. 4a is a schematic structural diagram of a microwave device according to an embodiment of the present invention, and as shown in fig. 4a, a microwave regulator 200 may include multiple regulation groups, and each regulation group may include a phase regulation module 210 and a power amplifier regulation module 220. In an example (for convenience of description, referred to as example 1), the power of the output microwave signal of each path of the multi-path adjusting group may be randomly set, so as to control the sum of the powers of the output microwave signals of the multi-path adjusting group to be equal to the power of the required output microwave signal; in yet another example (for convenience of description, referred to as example 2 for short), the power of the desired output microwave signal may be divided into each of the multipath conditioning groups according to an equal division rule, so that the power of the output microwave signal of each of the multipath conditioning groups is the same. It should be noted that, a first threshold may be preset, where the first threshold may be used to characterize a power limit of the output microwave signal of each adjustment group, and in a specific implementation, the size of the first threshold may be set by a person skilled in the art according to an actual situation, which is not limited in the embodiment of the present invention.
For example, if the microwave device is required to output 1500W of microwave signals, and the first threshold is 600W, at this time, by adopting the method in example 1, the microwave adjuster 200 may include three adjusting groups, where the power of the microwave signal output by the first adjusting group may be 600W, the power of the microwave signal output by the second adjusting group may be 450W, and the power of the microwave signal output by the third adjusting group 200 may be 450W; with the method in example 2, the microwave regulator may include three-way regulation groups, and the power of the output microwave signals of the first, second, and third regulation groups may be 500W.
In the embodiment of the invention, the initial microwave signals can be respectively regulated through each path of the multi-path regulating group by adopting the multi-path regulating group and arranging the phase regulating module and the power amplifier regulating module in each path of the multi-path regulating group, meanwhile, the multi-path regulating group can also divide the total microwave output signals into a plurality of paths of microwave output signals for output, and each path of microwave output signals can have own phase and amplification factor, so that the damage of microwave equipment caused by the overlarge power of the total microwave output signals can be avoided, and the multi-path regulating group can be applied to the occasions of outputting high-power microwave signals. In addition, through setting up the multichannel regulation group for the multichannel regulation group can be microwave equipment heating jointly, thereby improves microwave equipment's work efficiency, strengthens the flexibility that microwave equipment adjusted simultaneously.
Further, the collecting module 310 may be configured to detect microwave output signals output by each adjusting group, and for the microwave output signals output by each adjusting group, the processing module 320 may determine the second control signal of each adjusting group. Thus, the microwave adjuster 200 may adjust the phase adjusting modules 210 in each adjusting group according to the second control signal, so that the phases of the microwave output signals output by each adjusting group are different from each other, and meanwhile, the microwave adjuster 200 may adjust the power amplifier adjusting modules 220 in each adjusting group according to the second control signal, so that the powers of the microwave output signals output by each adjusting group are different from each other.
In a specific implementation, the second control signal may be determined by the processing module 320 according to characteristics of the microwave output signal, where the second control signal may be determined in a plurality of manners, for example, the processing module 320 may generate the second control signal corresponding to each adjusting group according to the microwave output signal of each adjusting group acquired by the acquisition module 310, or may generate the second control signal corresponding to each adjusting group according to the microwave output signal of the multi-adjusting group acquired by the acquisition module 310. In an example, if the acquisition module 310 monitors that the microwave device is not uniformly heated, the processing module 320 may determine that directions of microwave output signals corresponding to multiple adjustment groups of the microwave adjustment device are relatively concentrated, at this time, a second control signal generated by the processing module 320 may include a phase adjustment instruction corresponding to each adjustment group, so that the multiple adjustment groups may respectively adjust phases of the microwave output signals of the adjustment groups according to the second control signal, thereby enabling the microwave adjuster 200 to generate microwave output signals in multiple directions, and enhancing uniformity of heating of the microwave device. In another example, the acquisition module 310 monitors that the operating temperature generated by the microwave output signal of a certain path of adjusting group in the microwave adjuster 200 is higher, and at this time, the processing module 320 may include a power amplifier adjusting instruction corresponding to the path of adjusting group in the second control signal, so that the path of adjusting group may adjust the gate voltage of the power amplifier of the path of adjusting group according to the second control signal, thereby reducing the operating temperature generated by the microwave output signal of the path of adjusting group and improving the heating flexibility of the microwave device.
In the embodiment of the invention, the initial microwave signals can be respectively regulated through each path of the multi-path regulating group by adopting the multi-path regulating group and arranging the phase regulating module and the power amplifier regulating module in each path of the multi-path regulating group, meanwhile, the multi-path regulating group can also divide the total microwave output signals into a plurality of paths of microwave output signals for output, and each path of microwave output signals can have own phase and amplification factor, so that the damage of microwave equipment caused by the overlarge power of the total microwave output signals can be avoided, and the multi-path regulating group can be applied to the occasions of outputting high-power microwave signals.
Fig. 4b is a schematic structural diagram of a microwave device according to an embodiment of the present invention, and as shown in fig. 4b, the microwave regulator 200 may include multiple regulation groups, where each regulation group may include a phase regulation module 210 and a power amplifier regulation module 220, and the microwave regulator 200 may further include a voltage-controlled oscillator 230 and a second switch 240 connected in series. Here, the microwave regulator 200 may control an operation state of the second switch 240 according to the second control signal to adjust the microwave output signals outputted from the channels. Specifically, when the microwave monitor 300 monitors that the current operating temperature of the microwave device is high, or the microwave monitor 300 monitors that some functional components in the microwave device are out of order, at this time, the microwave monitor 300 may include a control instruction for turning off the second switch 240 in the second control signal, so that the microwave regulator 200 may turn off the switch of the voltage controlled oscillator 230 according to the second control signal, and stop the heating process, thereby ensuring the safety of the microwave device.
In the embodiment of the invention, the voltage-controlled oscillator and the second switch are arranged in the microwave regulator, so that the microwave signal generated by the microwave generator can oscillate, thereby generating the resonant microwave signal which meets the requirement, and when the temperature generated by the microwave output signal of the microwave regulator is monitored to be too high, the state of the second switch in the microwave regulator can be converted, the microwave regulator is closed, thereby ensuring the safety of the microwave regulator and further ensuring the safety of microwave equipment.
Fig. 4c is a schematic structural diagram of a microwave device according to an embodiment of the present invention, and as shown in fig. 4c, the microwave regulator 200 may include multiple regulation groups, where each regulation group may include a phase regulation module 210, a power amplifier regulation module 220, a voltage controlled oscillator 230, and a second switch 240, and each regulation group of the multiple regulation groups of the microwave regulator 200 may further include an amplitude regulation module 250. Here, the microwave monitor 300 may include an amplitude adjustment instruction in the second control signal, and the amplitude adjustment module 250 in each adjustment group may adjust the amplitude of the initial microwave signal according to the second control signal, so that the amplitudes of the microwave output signals of each adjustment group are different from each other. Specifically, when the microwave monitor 300 monitors that the amplitude variation of the microwave output signal of a certain path of adjusting group in the microwave adjuster 200 is large, at this time, the microwave monitor 300 may include a control instruction for adjusting the amplitude of the initial microwave signal corresponding to the path of adjusting group in the second control signal, so that the amplitude adjusting module 250 of the path of adjusting group may reduce the amplitude of the initial microwave signal according to the second control signal, thereby obtaining the required microwave output power.
In the embodiment of the invention, the amplitude adjusting module is arranged in the multi-path adjusting group, so that the amplitude of the initial microwave signal corresponding to each path of adjusting group in the multi-path adjusting group can be adjusted according to the working requirement, and thus, multi-path microwave output signals with different amplitudes are generated, and the micro-blog equipment is heated more flexibly.
Fig. 4d is a schematic structural diagram of a microwave device according to an embodiment of the present invention, and as shown in fig. 4d, the microwave regulator 200 may include multiple regulation groups, where each regulation group may include a phase regulation module 210, a power amplifier regulation module 220, a voltage controlled oscillator 230, a second switch 240, and an amplitude regulation module 250, and each regulation group of the multiple regulation groups of the microwave regulator 200 may further include a level regulation module 260. Here, the microwave regulator 200 may adjust the level adjustment module 260 of each of the adjustment groups according to the second control signal so as to adjust the microwave output signals output by the adjustment groups. Specifically, the microwave monitor 300 may include the reference level of each adjusting group in the second control signal, so that each adjusting group may adjust the level adjusting module 260 of each adjusting group according to the second control signal, and the level of each adjusting group does not exceed the preset level range. The preset level range may be set according to actual needs, which is not specifically limited in the embodiment of the present invention.
In the embodiment of the invention, the level adjusting module is arranged in the multi-path adjusting group, so that each path of adjusting group in the multi-path adjusting group respectively takes the reference level set by each path of adjusting group as a measuring standard to adjust the level of the initial microwave signal corresponding to each path of adjusting group in the multi-path adjusting group, thereby generating the output microwave signal within a safety range, ensuring the safety of each path of adjusting group and further ensuring the safety of microwave equipment.
Fig. 4e is a schematic structural diagram of a microwave device according to an embodiment of the present invention, and as shown in fig. 4e, the microwave regulator 200 may include multiple regulation groups, where each regulation group may include a phase regulation module 210, a power amplifier regulation module 220, a voltage controlled oscillator 230, a second switch 240, an amplitude regulation module 250, and a level regulation module 260, and each regulation group of the multiple regulation groups may further include a first switch 270. Here, the microwave regulator 200 may control the operating state of the first switch 270 in the multi-path regulation group according to the second control signal so as to adjust the microwave output signals output from the paths. For example, the microwave monitor 300 detects that the operating temperature generated by the microwave output signal of a certain regulating group in the multi-path regulating group is relatively high, or detects that the reverse power of the certain regulating group in the multi-path regulating group is too high, at this time, the microwave monitor 300 may include an instruction for turning off the first switch 270 of the regulating group in the second control signal, so that the regulating group can turn off the first switch 270 of the regulating group according to the second control signal, and the safety of the microwave device is ensured.
It should be noted that, the microwave monitor 300 may further include a warning lamp for microwave equipment, and when the microwave monitor 300 monitors that the temperature of the microwave equipment is too high, the microwave monitor 300 may generate a microwave control signal to control the warning lamp for microwave equipment to generate a warning, so as to remind a user to turn off the equipment in time, thereby ensuring safety.
In the embodiment of the invention, the first switches are arranged in the multiple paths of regulating groups, so that when the temperature generated by the microwave output signal of a certain path of regulating group is monitored to be higher or the reverse output power of the microwave output signal of a certain path of regulating group is monitored to be higher, the state of the first switch of each path of regulating group in the multiple paths of regulating groups can be switched, and the corresponding regulating group is closed, thereby ensuring the safety of the microwave regulator and further ensuring the safety of microwave equipment.
Fig. 5 is a schematic circuit diagram of a microwave apparatus according to an embodiment of the present invention, and as shown in fig. 5, a microwave generator 100 converts electric energy input by a power supply into initial microwave signals, and the initial microwave signals are respectively input into four adjusting groups through a voltage controlled oscillator 230, where the four adjusting groups are respectively a first adjusting group, a second adjusting group, a third adjusting group, and a fourth adjusting group. The microwave output signals output from the first regulation group may be used as reference microwave signals, and the microwave output signals output from the second regulation group, the third regulation group and the fourth regulation group may be compared with the reference microwave signals output from the first regulation group in phase. At this time, the microwave monitor 300 may determine a variation of the input voltage of the microwave converting module 120 in the microwave generator 100 by monitoring phase differences between the microwave output signals output from the second, third and fourth tuning groups and the reference microwave signal output from the first tuning group, respectively, so as to generate the first control signal. At this time, the power supply adjusting module 110 in the microwave generator 100 may adjust the electrical signal input from the external power supply to the microwave converting module according to the first control signal, so as to achieve the purpose of stably outputting microwaves.
In the above embodiment of the present invention, the microwave apparatus comprises a microwave generator, a microwave regulator and a microwave monitor, which are sequentially connected in series, wherein the microwave generator is connected to an external power supply, and is configured to convert an input electrical signal into an initial microwave signal, convert the initial microwave signal into a multi-directional and amplified microwave output signal through the microwave regulator, an output end of the microwave monitor is connected to a control end of the microwave generator, and is capable of generating a first control signal according to the microwave output signal and sending the first control signal to the microwave generator, and the microwave generator is further capable of adjusting the converted initial microwave signal according to the first control signal. In the embodiment of the invention, the microwave generator is adopted to generate an initial microwave signal, and the microwave regulator is used to generate a multi-directional and amplified microwave signal, so that hardware equipment such as a magnetron, a stirrer and the like can be avoided, the volume of the microwave equipment can be reduced, and the cost can be saved; in addition, the microwave monitor can control the microwave generator according to the microwave output signal, so that the microwave generator can output different initial microwave signals according to the current working condition of the microwave equipment, and the heating stability of the microwave equipment can be ensured.
Fig. 6 is a schematic flowchart corresponding to a microwave monitoring method according to an embodiment of the present invention, where the microwave monitoring method may be applied to a microwave device, and the microwave device may include a microwave generator, a microwave regulator, and a microwave monitor. Wherein, the microwave generator can be connected with an external power supply and converts the input electric signal into an initial microwave signal; the microwave regulator can convert the initial microwave signal into a multi-azimuth amplified microwave output signal; as shown in fig. 6, the method includes:
Here, the first request message may be sent by a user through a written program, or may also be sent by an alarm device set in the microwave device, and the microwave monitor may obtain a state of the microwave device sent by the alarm device within a preset period, or may also obtain the state of the microwave device sent by the alarm device in real time, which is not specifically limited in this embodiment of the present invention.
In specific implementation, the microwave device may be provided with an alarm device, and the alarm device may detect the operating state of the microwave device and send an alarm message to the microwave monitor when the output temperature of the microwave device changes greatly. The output temperature of the microwave equipment may be unstable due to the unstable initial microwave power generated by the microwave generator or the unstable microwave output signal output by the microwave regulator, so that the alarm device of the microwave equipment may also send an alarm message. In addition, when the operating temperature of the microwave device is too high or a part of the microwave device is damaged, the alarm device of the microwave device may send out alarm information, or when the microwave device cannot normally operate due to other possible conditions, the alarm device of the microwave device may also send out alarm information, which is not specifically limited in the embodiment of the present invention.
Further, after the microwave monitor detects the alarm information sent by the microwave device, the microwave monitor may obtain the microwave output signal of the microwave regulator. In the embodiment of the present invention, the microwave regulator may include one or more regulating groups, and at this time, the microwave monitor may obtain microwave output signals of one or more regulating groups, and determine the microwave power and the microwave temperature of the microwave output signals of one or more regulating groups according to the microwave output signals of one or more regulating groups.
Here, after the microwave monitor collects the output microwave signal of the microwave regulator, the microwave monitor may obtain the microwave power and the microwave temperature of the output microwave signal, where the microwave power may be used to represent characteristics of the microwave output signal, such as the frequency of the microwave signal, the amplitude of the microwave signal, and the like, and the microwave temperature may be used to represent the heating temperature of the microwave device.
In the embodiment of the invention, weights can be assigned to the frequency of the microwave output signal, the amplitude of the microwave output signal, the heating temperature of the microwave equipment and the like, and the current working state of the microwave equipment is determined. Wherein, the weights respectively corresponding to the frequency of the microwave output signal, the amplitude of the microwave output signal and the heating temperature of the microwave device can be determined by those skilled in the art; the microwave output signal may have other characteristics, which are not limited to the characteristics indicated in the embodiments of the present invention, and the embodiments of the present invention are not limited thereto. Specifically, the microwave monitor may determine characteristics of the microwave output signal of each of the one or more adjusting groups according to the microwave power and the microwave temperature of the microwave output signal of each of the one or more adjusting groups, and further determine a first control signal corresponding to the adjusting group, and comprehensively determine the first control signal according to the characteristics of the microwave output signal of each of the one or more adjusting groups.
In specific implementation, a power supply adjusting module and a microwave conversion module may be disposed inside the microwave generator, and the first control signal may control the microwave conversion module to output different initial position microwave signals by adjusting the power supply adjusting module inside the microwave generator. Specifically, the power supply adjusting module may adjust an electrical signal input from the external power supply to the microwave converting module according to the first control signal, and the microwave converting module may convert the electrical signal input from the power supply adjusting module into an initial microwave signal. In the embodiment of the invention, the microwave generator is adjusted by the first control signal, so that the microwave generator can generate the initial microwave signal of any frequency point in a frequency band of 400-3000 MHz, thereby increasing the application occasions of the microwave equipment.
In the embodiment of the invention, because the initial microwave signal sent by the microwave generator is weak, the initial microwave signal can not be directly used for heating the microwave equipment, at the moment, the initial microwave signal can be converted into a multi-azimuth amplified microwave output signal through the microwave regulator, and the microwave output signal can be used for heating the microwave equipment. Further, the microwave monitor may also generate a second control signal, which may be used to trigger the microwave regulator to regulate the output microwave output signal. Specifically, for any one of the one-way or multi-way adjusting sets, the adjusting set may include a phase adjusting module, an amplitude adjusting module, a level adjusting module, and the like. In the embodiment of the invention, the microwave monitor can generate the second control signal corresponding to each regulating group according to the microwave power and the microwave temperature of the microwave output signal in one or more regulating groups. The second control signal corresponding to a certain path of adjusting group may include a phase control signal, an amplitude control signal, a level control signal, and the like, and the phase adjusting module, the amplitude adjusting module, and the level adjusting module in the path of adjusting group may be adjusted by the phase control signal, the amplitude control signal, and the level control signal, respectively. Specifically, the phase of the output microwave signal can be adjusted by controlling the phase adjusting module, the amplitude of the output microwave signal can be adjusted by controlling the amplitude adjusting module, the level of the output microwave signal can be adjusted by controlling the level adjusting module, and the power amplifier of the output microwave signal can be adjusted by controlling the grid voltage of the power amplifier adjusting module. In the embodiment of the present invention, the microwave regulator may further include other regulating modules, which is not specifically limited in this embodiment of the present invention.
In the above embodiment of the present invention, after receiving the first request message, the microwave monitor obtains the microwave output signal sent by the microwave regulator, determines the first control signal according to the microwave power and the microwave temperature of the microwave output signal, and sends the first control signal to the microwave generator, so that the microwave generator adjusts the converted initial microwave signal. In the embodiment of the invention, the microwave generator is adopted to generate an initial microwave signal, and the microwave regulator is used to generate a multi-directional and amplified microwave signal, so that hardware equipment such as a magnetron, a stirrer and the like can be avoided, the volume of the microwave equipment can be reduced, and the cost can be saved; in addition, the microwave monitor can control the microwave generator according to the microwave output signal, so that the microwave generator can output different initial microwave signals according to the current working condition of the microwave equipment, and the heating stability of the microwave equipment can be ensured.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A microwave device, comprising: the microwave control system comprises a microwave generator, a microwave regulator and a microwave monitor which are sequentially connected in series, wherein the output end of the microwave monitor is connected with the control end of the microwave generator;
the microwave generator comprises a power supply adjusting module and a microwave conversion module which are connected in series, is connected with an external power supply and is used for converting an input electric signal into an initial microwave signal;
the microwave regulator is used for converting the initial microwave signal into a multi-azimuth amplified microwave output signal;
the microwave monitor is used for generating a first control signal according to the microwave output signal and sending the first control signal to the microwave generator;
the microwave generator is further used for adjusting the converted initial microwave signal according to the first control signal; the microwave conversion module is used for converting the electric signal input by the power supply regulating module into the initial microwave signal.
2. The apparatus of claim 1, wherein the power supply adjusting module is configured to adjust the electric signal input by the external power supply to the microwave conversion module according to the first control signal.
3. The apparatus of claim 1, wherein the microwave monitor comprises an acquisition module and a processing module;
the acquisition module is used for monitoring the microwave output signal through a first interface;
and the processing module is used for generating the first control signal according to the microwave output signal and sending the first control signal to the microwave generator through a second interface.
4. The apparatus according to claim 3, wherein the output terminal of the microwave monitor is further connected to the control terminal of the microwave regulator;
the microwave monitor is further configured to generate a second control signal according to the microwave output signal, and send the second control signal to the microwave regulator through a third interface;
the microwave regulator is further configured to adjust the microwave output signal according to the second control signal.
5. The apparatus of claim 4, wherein the microwave conditioner comprises a multiplex conditioning bank; each path of adjusting group at least comprises a phase adjusting module and a power amplifier adjusting module;
the phase adjusting module is used for adjusting the phase of the initial microwave signal, wherein the phases of the microwave output signals output by the adjusting groups are different from each other;
and the power amplifier adjusting module is used for amplifying the initial microwave signal.
6. The apparatus of claim 5,
the acquisition module is used for monitoring microwave output signals output by each path of regulating group;
and the processing module is used for determining second control signals of each path of regulating group according to the microwave output signals output by each path of regulating group.
7. The apparatus of claim 6, wherein the adjustment group further comprises an amplitude adjustment module;
and the microwave regulator is used for regulating the amplitude regulating module according to the second control signal so as to regulate the microwave output signals output by each path.
8. The apparatus of claim 6, wherein the adjustment group further comprises a level adjustment module;
and the microwave regulator is used for regulating the level regulating module according to the second control signal so as to regulate the microwave output signals output by each path.
9. The apparatus of claim 6, wherein the regulation group further comprises a first switch;
and the microwave regulator is used for controlling the working state of the first switch according to the second control signal so as to regulate the microwave output signals output by each path.
10. The apparatus of claim 6, wherein the microwave regulator further comprises a voltage controlled oscillator and a second switch in series;
and the microwave regulator is used for controlling the working state of the second switch according to the second control signal so as to regulate the microwave output signals output by each path.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101502169A (en) * | 2006-07-14 | 2009-08-05 | 株式会社太阳工学 | Microwave induction heating device |
| CN103004288A (en) * | 2010-05-03 | 2013-03-27 | 高知有限公司 | Modal analysis |
| EP3087805A4 (en) * | 2013-12-23 | 2017-08-30 | Whirlpool Corporation | Interrupting circuit for a radio frequency generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502169A (en) * | 2006-07-14 | 2009-08-05 | 株式会社太阳工学 | Microwave induction heating device |
| CN103004288A (en) * | 2010-05-03 | 2013-03-27 | 高知有限公司 | Modal analysis |
| EP3087805A4 (en) * | 2013-12-23 | 2017-08-30 | Whirlpool Corporation | Interrupting circuit for a radio frequency generator |
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