CN110881230A - Method and equipment for realizing partition uniform heating of dual-channel solid-state source - Google Patents
Method and equipment for realizing partition uniform heating of dual-channel solid-state source Download PDFInfo
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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
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- H05B6/68—Circuits for monitoring or control
- H05B6/686—Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
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Abstract
The invention discloses equipment and a method for realizing partitioned uniform heating by a double-channel solid-state source, relates to the field of microwave heating, and solves the problems of high heating cost and complex structure of multi-channel solid-state source partitioned heating in the prior art. The dual-channel solid-state source heating device comprises a dual-channel solid-state source and a heating cavity, and further comprises a phased array antenna unit, a power divider and a phase shifter; the phased array antenna unit is arranged in the heating cavity; the dual-channel solid-state source is connected with the phased array antenna unit through the power divider respectively; and the microwave energy of one path is connected with the power divider through the phase shifter. According to the invention, the heating of the inner region of the heating cavity is realized through the double-channel solid-state source and the phase shifter; the frequency, the output power and the working time of the phase shifter and the dual-channel solid-state source are controlled by the microcontroller, and the temperature distribution in the heating cavity is monitored in real time by the temperature feedback device, so that uniform heating can be realized, and heating with different heating curves in different regions can be realized; the invention has the advantages of good zone heating and heating uniformity, simple structure and low cost.
Description
Technical Field
The invention relates to the field of microwave heating, in particular to a method and equipment for realizing partition uniform heating by a dual-channel solid-state source.
Background
With the rapid development of modern science and technology, microwave energy is widely applied to various fields such as industrial production and daily life as a novel high-efficiency clean energy source, and consumers have higher requirements on the cost and the heating uniformity of microwave heating while the microwave heating plays an increasingly important role in life and industrial production.
In the prior art, a method for improving microwave heating uniformity through directional heating is adopted, and the aim of zone heating is achieved through multi-channel solid-state source zone radiation, but the problem of high cost is caused;
there is a need for a new heating apparatus and method for a small channel solid state source that can achieve zone heating that solves the above problems.
Disclosure of Invention
The invention provides a method and equipment for realizing partitioned uniform heating of a dual-channel solid-state source, which solve the problems of high heating cost and complex structure of multi-channel solid-state source partitioned heating in the prior art.
The technical scheme of the invention is realized as follows: the equipment for realizing partition uniform heating of the dual-channel solid-state source comprises the dual-channel solid-state source, a heating cavity, a phased array antenna unit, a power divider, a phase shifter, a temperature feedback device and a micro control device; the phased array antenna unit and the temperature feedback device are arranged in the heating cavity; the dual-channel solid-state source is connected with the phased array antenna unit through a one-to-two power divider; the microwave energy of one path is connected with the power divider through the phase shifter; the temperature feedback device, the double-channel solid-state source and the phase shifter are connected with the microcontroller.
Further, the micro control device includes: a dual-channel solid-state source control unit for controlling the power and frequency of the dual-channel solid-state source; a phase control unit connected to the phase shifter; a time unit for controlling the heating time; the storage unit is used for simulating the heating process and storing the mapping relation between the temperature distribution and the frequency, power and heating time of the simulated dual-channel solid-state source; and the information processing unit is used for receiving the information fed back by the temperature feedback device, calculating the temperature distribution and adjusting the heating frequency, power and heating time of the dual-channel solid-state source.
The power divider comprises a one-to-two power divider and two one-to-three power dividers; the dual-channel solid-state source is connected with the phased array antenna unit through a one-to-two power divider; the microwave signal of one path is connected with the phased array antenna unit through the phase shifter;the antenna radiation device is a 3 multiplied by 2 array antenna consisting of six micro-phased array antenna units, and the single patch antenna unit is S in the frequency range of 2.41 GHz-2.49 GHz11＜-10dB。
The power divider comprises a one-to-two power divider and two one-to-eight power dividers; the dual-channel solid-state source is connected with the phased array antenna unit through a one-to-two power divider; the microwave signal of one path is connected with the phased array antenna unit through the phase shifter; the antenna radiation device is a 4 multiplied by 4 array antenna consisting of sixteen micro-phased array antenna units, and the single patch antenna unit is S in the frequency range of 2.41 GHz-2.49 GHz11＜-10dB。
Preferably, an amplifier is further disposed between the power divider and the antenna radiation unit.
Preferably, the temperature feedback device is a wireless passive probe; the wireless passive probe comprises a wireless transmission module, an antenna module and a sensor; the sensor is connected with the microcontroller; the antenna module comprises a receiving antenna for collecting radio frequency microwave signals; the frequency of the receiving antenna is different from the heating cavity frequency and is not a harmonic of the heating cavity frequency; the wireless transmission module comprises a power supply unit and a patch antenna unit for receiving packed data, probe numbers and coordinate signals; the power supply unit is connected with the receiving antenna; the antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the heating cavity through a cut-off hole.
The invention discloses a method for realizing partition uniform heating of a dual-channel solid-state source, which comprises the following steps of: A. an array antenna composed of phased array antenna units is arranged in the heating cavity; the dual-channel solid-state source is divided into two paths of microwave signals through a one-to-two power divider, wherein one path of microwave energy is connected with the micro-phased array antenna unit through the power divider and the amplifier, and the other path of the dual-channel solid-state source is connected with the micro-strip phased array antenna unit through the phase shifter, the power divider and the amplifier; B. electromagnetic energy feeds the heating chamber through six unit array antennas as the feed source, divides the heating chamber into 3 regions, moves the looks ware through the regulation, carries out directive property heating to 3 regions.
Further, the method also comprises a step C of arranging a microcontroller, wherein the microcontroller is connected with the dual-channel solid-state source and the phase shifter; the working frequency, the output power and the working time of the dual-channel solid-state source are respectively controlled by a dual-channel solid-state source control unit of the microcontroller, and the energy is respectively heated in 3 areas within a given short time and power by the power divider and the array antenna.
Preferably, the method further comprises a step D, which is arranged between the steps B and C; D. a temperature feedback device is arranged in the heating cavity; connecting a microcontroller; the temperature feedback device feeds back the temperature distribution in the heating cavity in real time, and an information processing unit of the microcontroller adjusts the frequency, the power and the heating time of temperature feedback and next second double-channel solid-state source heating.
Further, the information processing unit of the microcontroller in the step D includes a storage unit, the frequency, power and heating time of the dual-channel solid-state source are changed through simulation, electromagnetic energy feeds the heating cavity through a six-element array antenna serving as a feed source, the heating cavity is divided into 3 areas, the corresponding relation between directivity and the phase shifter is established, and the result is stored in the storage unit of the microcontroller.
The invention discloses a method and equipment for realizing partition uniform heating of a dual-channel solid-state source, which realize partition heating in a heating cavity by adjusting a phase shifter; the frequency, the output power and the working time of the phase shifter and the dual-channel solid-state source are controlled and controlled by the microcontroller, the temperature distribution in the heating cavity is monitored in real time by arranging the temperature feedback device, and the frequency, the output power and the working time of the phase shifter and the dual-channel solid-state source are controlled, so that uniform heating can be realized, heating with different heating curves in different regions can be realized, and the purpose of high-quality heating can be achieved; the invention has the advantages of good zone heating and heating uniformity, simple structure and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: a one-into-six system principle schematic diagram;
FIG. 2: a structural schematic diagram of one minute and six;
FIG. 3: heating the temperature slice image uniformly by one minute and six minutes;
FIG. 4: a one-into-sixteen system principle schematic diagram;
FIG. 5: a sixteen-point structural schematic diagram;
FIG. 6: heating the temperature slice image uniformly by one and sixteen minutes;
wherein: 1. heating the cavity; 2. a phased array antenna unit; 3. a connecting wire; 4. a one-to-three power divider; 5. an amplifier; 6. a phase shifter; 7. a dual channel solid state source; 8. a one-to-two power divider; 9. a microcontroller; 10. a temperature feedback device; 11. an one-to-eight power divider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.
The invention discloses equipment for realizing partition uniform heating of a dual-channel solid-state source 7, which comprises the dual-channel solid-state source 7, a heating cavity, a phased array antenna unit 2, a power divider, a phase shifter 6, a temperature feedback device 10 and a micro control device; the phased array antenna unit 2 and the temperature feedback device 10 are arranged in the heating cavity; the dual-channel solid-state source 7 is respectively connected with the phased array antenna unit 2 through a one-to-two power divider 8; the microwave energy of one path is connected with the power divider through the phase shifter 6; the temperature feedback device 10, the dual-channel solid-state source 7 and the phase shifter 6 are connected with the microcontroller 9. Further, the micro control device includes: a dual-channel solid-state source 7 control unit for controlling the power and frequency of the dual-channel solid-state source 7; a phase control unit connected to the phase shifter 6; a time unit for controlling the heating time; the heating process is simulated, and the mapping relation between the temperature distribution and the frequency, the power and the heating time of the simulated dual-channel solid-state source 7 is stored; and the information processing unit is used for receiving the information fed back by the temperature feedback device 10, calculating the temperature distribution and adjusting the heating frequency, power and heating time of the dual-channel solid-state source 7.
Preferably, an amplifier 5 is further disposed between the power divider and the antenna radiation unit. Preferably, the temperature feedback device 10 is a wireless passive probe; the wireless passive probe comprises a wireless transmission module, an antenna module and a sensor; the sensor is connected with the microcontroller 9; the antenna module comprises a receiving antenna for collecting radio frequency microwave signals; the frequency of the receiving antenna is different from the heating cavity frequency and is not a harmonic of the heating cavity frequency; the wireless transmission module comprises a power supply unit and a patch antenna unit for receiving packed data, probe numbers and coordinate signals; the power supply unit is connected with the receiving antenna; the antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the heating cavity 1 through a cut-off hole.
The invention discloses a method for realizing partition uniform heating of a dual-channel solid-state source 7, which comprises the following steps of: A. an array antenna composed of phased array antenna units 2 is arranged in the heating cavity 1; the dual-channel solid-state source 7 is divided into two paths of microwave signals through a one-to-two power divider 8, wherein one path of microwave energy is connected with the micro-phased array antenna unit 2 through the power divider and the amplifier 5, and the other path of the dual-channel solid-state source 7 is connected with the micro-strip phased array antenna unit 2 through the phase shifter 6, the power divider and the amplifier 5; B. electromagnetic energy feeds the heating cavity through an array antenna serving as a feed source, the heating cavity is divided into 3 areas, and the 3 areas are subjected to directional heating through adjusting a phase shifter 6; D. a temperature feedback device 10 is arranged in the heating cavity 1; the microcontroller 9 is connected; the temperature feedback device 10 feeds back the temperature distribution in the heating cavity in real time, and an information processing unit of the microcontroller 9 adjusts the temperature feedback and the heating frequency, power and heating time of the dual-channel solid-state source 7 in the next second; the information processing unit comprises a storage unit, the frequency, the power and the heating time of the dual-channel solid-state source 7 are changed through simulation, electromagnetic energy feeds the heating cavity through a six-unit array antenna serving as a feed source, the heating cavity is divided into 3 areas, the corresponding relation between the directivity and the phase shifter 6 is established, and the result is stored in the storage unit of the microcontroller 9; C. a microcontroller 9 is arranged, and the microcontroller 9 is connected with the dual-channel solid-state source 7 and the phase shifter 6; the working frequency, the output power and the working time of the dual-channel solid-state source 7 are respectively controlled by a dual-channel solid-state source 7 control unit of the microcontroller 9, and energy is respectively heated in 3 areas within a given short time and power by the power divider and the array antenna.
Detailed description of the preferred embodiment
The equipment for realizing the partition uniform heating of the dual-channel solid-state source 7 comprises the dual-channel solid-state source 7, a heating cavity, a phased array antenna unit 2, a power divider, a phase shifter 6, a temperature feedback device 10 and a micro control device; the phased array antenna unit 2 and the temperature feedback device 10 are arranged in the heating cavity; the dual-channel solid-state source 7 is respectively connected with the phased array antenna unit 2 through a one-to-two power divider 8; the microwave energy of one path is connected with the power divider through the phase shifter 6; the temperature feedback device 10, the dual-channel solid-state source 7 and the phase shifter 6 are connected with the microcontroller 9. The power divider comprises a one-to-two power divider 8 and two one-to-three power dividers 4; the dual-channel solid-state source 7 is connected with the phased array antenna unit 2 through a one-to-two power divider 8; one path of microwave signal is connected with the phased array antenna unit 2 through the phase shifter 6; the antenna radiation device is a 3 multiplied by 2 array antenna consisting of six micro-phased array antenna units 2, and the single patch antenna unit is S in the frequency range of 2.41 GHz-2.49 GHz11＜-10dB。
The heating cavity is divided into I, II and III areas, one path of microwave energy is shifted by a phase shifter 6, so that the phase difference between two electromagnetic wave signals generated by a dual-channel solid source 7
Then passes through the power dividerThe rear energy is divided into six paths equally, the energy is mutually superposed in the space through the six-unit antenna array according to the phased array theory to synthesize deflection beams with the deviation angles of 0, theta and theta, the deflection beams point to the central area II and the areas I and III respectively, and 3 heating spaces are respectively heated. The frequency, the power and the heating time of the dual-channel solid-state source 7 are set through output, directional heating can be achieved, only the required area is heated, the temperature information fed back through the temperature feedback device 10 is controlled by the microcontroller 9 to output the microwave source frequency, the power and the heating time, and the phase shifter 6 is used for conducting directional heating on the area with lower temperature, so that uniform heating of microwave heating is achieved, and the final heating temperature of 3 areas can achieve the effect of uniform heating.
The phased array antenna array composed of six patch antenna units is used for simulating zoned heating simulation, the total power is 300W, the space is firstly divided into I, II and III areas, 100ml of water is placed in 3 areas respectively, the dielectric constant is 80-12 x j, the effects of temperature rise cannot be completely the same due to reflection in a cavity, and based on the phased array theory, microwave beams with directivity are formed by adjusting a phase shifter 6 to uniformly heat the 3 areas.
Detailed description of the invention
Different from the first embodiment, the power divider includes a one-to-two power divider 8 and two one-to-eight power dividers 11; the dual-channel solid-state source 7 is connected with the phased array antenna unit 2 through a one-to-two power divider 8; one path of microwave signal is connected with the phased array antenna unit 2 through the phase shifter 6; the antenna radiation device is a 4 multiplied by 4 array antenna consisting of sixteen micro-phased array antenna units 2, and the single patch antenna unit S ranges from 2.41GHz to 2.49GHz in frequency11＜-10dB。
The heating cavity is divided into I, II and III areas, the phase of one path of microwave energy is moved through a phase shifter 6, and the phase difference of two electromagnetic wave signals generated by a dual-channel solid source 7 is enabled to be
Then the energy is equally divided into sixteen after passing through an one-eight power divider 11And after the path passes through the sixteen-unit antenna array, energy is mutually superposed in the space according to a phased array theory to synthesize deflection beams with deflection angles of 0 theta and theta, the deflection beams point to a central area II and areas I and III respectively, and 3 heating spaces are respectively heated. The frequency, the power and the heating time of the dual-channel solid-state source 7 are set through output, directional heating can be achieved, only the required area is heated, the temperature information fed back through the temperature feedback device 10 is controlled by the microcontroller 9 to output the microwave source frequency, the power and the heating time, and the phase shifter 6 is used for conducting directional heating on the area with lower temperature, so that uniform heating of microwave heating is achieved, and the final heating temperature of 3 areas can achieve the effect of uniform heating.
The phased array antenna array composed of sixteen patch antenna units is used for simulating zoned heating simulation, the total power is 300W, the space is firstly divided into I, II and III areas, 100ml of water is placed in 3 areas respectively, the dielectric constant is 80-12 x j, the effects of temperature rise cannot be completely the same due to reflection in a cavity, and based on the phased array theory, microwave beams with directivity are formed by adjusting a phase shifter 6 to uniformly heat the 3 areas.
The invention discloses a method and equipment for realizing zone uniform heating of a dual-channel solid-state source 7, which realize zone heating in a heating cavity by adjusting a phase shifter 6; the frequency, the output power and the working time of the phase shifter 6 and the dual-channel solid-state source 7 are controlled and controlled by the microcontroller 9, the temperature distribution in the heating cavity is monitored in real time by arranging the temperature feedback device 10, and the frequency, the output power and the working time of the phase shifter 6 and the dual-channel solid-state source 7 are controlled, so that uniform heating can be realized, heating with different heating curves in different regions can be realized, and the purpose of high-quality heating can be achieved; the invention has the advantages of good zone heating and heating uniformity, simple structure and low cost.
It is understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is intended to cover in the appended claims all such changes and modifications.
Claims (10)
1. The utility model provides an equipment that partition even heating was realized to binary channels solid-state source, includes binary channels solid-state source and heating chamber, its characterized in that: the system also comprises a phased array antenna unit, a power divider, a phase shifter, a temperature feedback device and a micro control device; the phased array antenna unit and the temperature feedback device are arranged in the heating cavity;
the two-channel solid-state source is connected with the phased array antenna unit through a one-to-two power divider respectively;
the microwave energy of one path is connected with the power divider through the phase shifter;
the temperature feedback device, the double-channel solid-state source and the phase shifter are connected with the microcontroller.
2. The apparatus of claim 1, wherein the dual channel solid state source provides zonal uniform heating, and wherein: the micro control device includes:
a dual-channel solid-state source control unit for controlling the power and frequency of the dual-channel solid-state source;
a phase control unit connected to the phase shifter;
a time unit for controlling the heating time;
the storage unit is used for simulating the heating process and storing the mapping relation between the temperature distribution and the frequency, power and heating time of the simulated dual-channel solid-state source;
and the information processing unit is used for receiving the information fed back by the temperature feedback device, calculating the temperature distribution and adjusting the heating frequency, power and heating time of the dual-channel solid-state source.
3. The apparatus of claim 2, wherein the dual channel solid state source provides for zoned uniform heating, and wherein: the power divider comprises a one-to-two power divider and two one-to-three power dividers; the dual-channel solid-state source is connected with the phased array antenna unit through a one-to-two power divider; the microwave signal of one path is connected with the phased array antenna unit through the phase shifter; the antenna radiation device is a 3 multiplied by 2 antenna composed of six micro-phased array antenna unitsThe single patch antenna unit is in the frequency range of 2.41 GHz-2.49 GHz11＜-10dB。
4. The apparatus of claim 2, wherein the dual channel solid state source provides for zoned uniform heating, and wherein: the power divider comprises a one-to-two power divider and two one-to-eight power dividers; the dual-channel solid-state source is connected with the phased array antenna unit through a one-to-two power divider; the microwave signal of one path is connected with the phased array antenna unit through the phase shifter; the antenna radiation device is a 4 multiplied by 4 array antenna consisting of sixteen micro-phased array antenna units, and the single patch antenna unit is S in the frequency range of 2.41 GHz-2.49 GHz11＜-10dB。
5. The apparatus according to claim 3 or 4 for realizing zoned uniform heating by a dual channel solid state source, wherein: an amplifier is arranged in front of the power divider and the antenna radiation unit.
6. The apparatus of claim 5, wherein the dual channel solid state source provides zonal uniform heating, and wherein: the temperature feedback device is a wireless passive probe; the wireless passive probe comprises a wireless transmission module, an antenna module and a sensor; the sensor is connected with the microcontroller;
the antenna module comprises a receiving antenna for collecting radio frequency microwave signals; the frequency of the receiving antenna is different from the heating cavity frequency and is not a harmonic of the heating cavity frequency;
the wireless transmission module comprises a power supply unit and a patch antenna unit for receiving packed data, probe numbers and coordinate signals; the power supply unit is connected with the receiving antenna;
the antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the heating cavity through a cut-off hole.
7. A method for realizing partition uniform heating by a dual-channel solid-state source is characterized by comprising the following steps: the method comprises the following steps:
A. an array antenna composed of micro phased array antenna units is arranged in the heating cavity; the dual-channel solid-state source is divided into two paths of microwave signals through a one-to-two power divider, wherein one path of microwave energy is connected with the micro-phased array antenna unit through the power divider and the amplifier, and the other path of the dual-channel solid-state source is connected with the micro-strip phased array antenna unit through the phase shifter, the power divider and the amplifier;
B. electromagnetic energy feeds the heating chamber through the array antenna as the feed source, divides the heating chamber into 3 regions, moves the looks ware through the regulation, carries out directive property heating to 3 regions.
8. The method of claim 6, wherein the two-channel solid-state source is used for realizing the zone uniform heating, and the method comprises the following steps: step C, setting a microcontroller, wherein the microcontroller is connected with the dual-channel solid-state source and the phase shifter; the phase shifter, the working frequency, the output power and the working time of the dual-channel solid-state source are respectively controlled by the microcontroller, and the 3 areas are respectively heated by energy within given time and power through the power divider and the array antenna.
9. The method of claim 7, wherein the dual channel solid state source is configured to achieve zonal uniform heating, and wherein: the step D is arranged between the step B and the step C; D. a temperature feedback device is arranged in the heating cavity; connecting a microcontroller; the temperature feedback device feeds back the temperature distribution in the heating cavity in real time, and an information processing unit of the microcontroller adjusts the frequency, the power and the heating time of temperature feedback and next second double-channel solid-state source heating.
10. The method of claim 8, wherein the dual channel solid state source is configured to achieve zonal uniform heating, and wherein: and D, changing the frequency, power and heating time of the dual-channel solid-state source through simulation, feeding the heating cavity by electromagnetic energy through a six-unit array antenna serving as a feed source, dividing the heating cavity into 3 areas, establishing a corresponding relation between directivity and a phase shifter, and storing the result in the storage unit of the microcontroller.
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Application publication date: 20200313 |