CN111246613A - Radio frequency heating device, control method and device thereof, radio frequency heating electric appliance and storage medium - Google Patents
Radio frequency heating device, control method and device thereof, radio frequency heating electric appliance and storage medium Download PDFInfo
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- 239000000463 material Substances 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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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
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Abstract
The invention belongs to the technical field of radio frequency heating, and discloses a radio frequency heating device, which comprises: the device comprises a heating cavity, a radio frequency generating device, a heating partition plate and a power detection unit; the power detection unit is used for detecting the incident power of the radio frequency emitted by the radio frequency generation device and the reflected power of the radio frequency emitted by the radio frequency generation device after reflection; the heating clapboard is arranged in the heating cavity, and the position of the heating clapboard is adjustable according to the size of the heated object, the incident power and the reflected power. The radio frequency heating device provided by the embodiment of the invention can improve the heating efficiency and reduce the energy consumption by reducing the effective heating volume of the heating cavity. The invention also discloses a control method and a control device for the radio frequency heating device, a radio frequency heating electric appliance and a storage medium.
Description
Technical Field
The invention relates to the technical field of radio frequency heating, in particular to a radio frequency heating device, a control method and a control device thereof, a radio frequency heating electric appliance and a storage medium.
Background
The existing various products heated or thawed by radio frequency, especially the products using solid radio frequency source, mainly adopt the sweep frequency technology to ensure that the radio frequency energy can be efficiently radiated into the cavity, and are suitable for heating different heated objects. Specifically, after the heated object is placed, the emission frequency of the radio frequency source is scanned within a certain bandwidth near the working center frequency point, and the radio frequency source is controlled to perform power transmission at the optimal radio frequency power.
When the radio frequency heating technology is used for heating the heated object, certain special heated objects need larger frequency to realize high-efficiency heating, the required larger frequency can increase the design difficulty of a radio frequency element, the electromagnetic leakage prevention difficulty of a product is greatly increased, and the risk of electromagnetic leakage exists.
Disclosure of Invention
The invention aims to provide a radio frequency heating device with high efficiency. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided a radio frequency heating apparatus, comprising: the device comprises a heating cavity, a radio frequency generating device, a heating clapboard and a power detection unit;
the power detection unit is used for detecting the incident power of the radio frequency emitted by the radio frequency generation device and the reflected power of the radio frequency emitted by the radio frequency generation device after reflection;
the heating clapboard is arranged in the heating cavity, and the position of the heating clapboard is adjustable according to the size of the heated object, the incident power and the reflected power.
In some optional embodiments, the material of the heating partition plate is the same as that of the inner wall of the heating cavity.
In some alternative embodiments, the edges of the heating baffle are proximate to the heating chamber inner wall.
In some optional embodiments, the rf heating device further comprises: the device comprises a control module and a position adjusting module connected with the control module;
the control module is connected with the radio frequency generating device and is used for controlling the radio frequency power transmitted by the radio frequency generating device;
the control module is connected with the power detection unit and used for controlling the position adjusting module according to the incident power and the reflected power detected by the power detection unit;
the position adjusting module is used for adjusting the position of the heating partition plate.
In some optional embodiments, the rf heating device further comprises: the identification module is connected with the control module;
the identification module is used for identifying the length, the width and/or the height of the heated object.
In some optional embodiments, the radio frequency generating device is disposed on a top wall and/or a side wall of the heating chamber.
In some alternative embodiments, the heating baffle plate is arranged in the heating cavity in parallel with the top wall of the heating cavity, or the heating baffle plate is arranged in the heating cavity in perpendicular with the top wall of the heating cavity.
In some alternative embodiments, a radio frequency heating apparatus, comprises: the device comprises a heating cavity, a radio frequency generating device, a heating partition plate, a first power detection unit and a second power detection unit;
the first power detection unit is connected with the radio frequency generation device and is used for detecting the incident power of the radio frequency emitted by the radio frequency generation device;
the second power detection unit is arranged on the top wall and/or the side wall of the heating cavity and is used for detecting the reflected power of the radio frequency emitted by the radio frequency generation device after the radio frequency is reflected;
the heating clapboard is arranged in the heating cavity, and the position of the heating clapboard is adjustable according to the size of the heated object, the incident power and the reflected power.
According to a second aspect of embodiments of the present invention, there is provided a control method for any one of the foregoing radio frequency heating apparatuses, including:
acquiring the size of a heated object, and incident power and reflected power detected by the power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
In some optional embodiments, the adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power includes:
when the incident power is greater than or equal to a set power value and the ratio of the reflected power to the incident power is less than a set value, the position of the heating clapboard is adjusted according to the size of the heated object so as to reduce the effective heating volume of the heating cavity and improve the heating efficiency; wherein the effective heating volume is larger than the volume of the heated object.
In some optional embodiments, before the adjusting the position of the heating partition plate according to the size of the heated object, the method further comprises:
acquiring the length, width and/or height of the heated object;
the adjusting the position of the heating partition plate according to the size of the heated object includes:
controlling a distance between the heating partition plate and the heating cavity side wall according to a length or a width of the heated object; alternatively, the distance between the heating partition plate and the heating chamber ceiling wall is controlled in accordance with the height of the heated object.
In some optional embodiments, a control method for a radio frequency heating apparatus, comprises: acquiring the size of a heated object, the incident power detected by the first power detection unit and the reflected power detected by the second power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
According to a third aspect of embodiments of the present invention, there is provided control apparatus for any one of the aforementioned radio frequency heating apparatuses, comprising:
a first acquisition unit configured to acquire the size of the heated object, the incident power and the reflected power detected by the power detection unit;
an adjusting unit for adjusting a position of the heating partition plate according to a size of the heated object, the incident power, and the reflected power.
In some optional embodiments, the adjusting unit is configured to adjust the position of the heating partition plate according to the size of the heated object to reduce the effective heating volume of the heating cavity to improve the heating efficiency when the incident power is greater than or equal to a set power value and the ratio of the reflected power to the incident power is less than a set value; wherein the effective heating volume is larger than the volume of the heated object.
In some optional embodiments, the control device further comprises:
a second acquiring unit for acquiring the length, width and/or height of the heated object;
the adjusting unit is used for controlling the distance between the heating clapboard and the heating cavity side wall according to the length or the width of the heated object; alternatively, the distance between the heating partition plate and the heating chamber ceiling wall is controlled in accordance with the height of the heated object.
In some optional embodiments, the control device for the rf heating device comprises: a first acquisition unit configured to acquire a size of an object to be heated, incident power detected by the first power detection unit, and reflected power detected by the second power detection unit;
an adjusting unit for adjusting a position of the heating partition plate according to a size of the heated object, the incident power, and the reflected power.
According to a fourth aspect of the embodiments of the present invention, there is provided a radio frequency heating appliance, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the size of a heated object and incident power reflected power detected by the power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
According to a fifth aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described control method for a radio frequency heating apparatus.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the radio frequency heating device provided by the embodiment of the invention comprises the heating partition plate and the power detection unit, the position of the heating partition plate is adjustable, the position of the heating partition plate is adjusted according to the size, the incident power and the reflected power of the heated object, the heating efficiency is improved by reducing the effective heating volume of the heating cavity, and the energy consumption is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram illustrating the construction of a radio frequency heating apparatus according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating the construction of a radio frequency heating apparatus according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a control method for a radio frequency heating apparatus according to an exemplary embodiment;
fig. 4 is a block diagram illustrating a control apparatus for an rf heating apparatus according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
The radio frequency represents the electromagnetic frequency which can be radiated to the space, and in the embodiment of the disclosure, the frequency range of the electromagnetic wave emitted by the radio frequency generating device built in the radio frequency heating device is between 20KHz and 300GHz during the heating process of the radio frequency heating device.
The heating efficiency of the radio frequency heating device is related to the volume of the radio frequency heating device, the radio frequency is lost in the transmission process, and the larger the volume of the radio frequency heating device is, the more the energy loss of the radio frequency is, and the lower the heating efficiency is. There are some special heated objects that require a large bandwidth to achieve high efficiency heating, such as: when the meat piece that is less to the volume unfreezes, the energy that needs when comparing to heating the meal is many, and just for realizing that the meat piece unfreezes in setting for the heating time, need improve the electromagnetic wave frequency, great frequency can be given the design degree of difficulty that increases radio frequency component, and the degree of difficulty of electromagnetic leakage is prevented to greatly increased product simultaneously, has the risk of electromagnetic leakage.
Fig. 1 is a block diagram illustrating an rf heating apparatus according to an exemplary embodiment, including: a radio frequency generating device 1 and a power detecting unit 2.
The radio frequency generating device 1 and the power detecting unit 2 are arranged in a heating cavity of the radio frequency heating device, and the power detecting unit 2 is connected with the radio frequency generating device 1 and used for detecting the incident power of the radio frequency emitted by the radio frequency generating device 1 and the reflected power of the radio frequency emitted by the radio frequency generating device 1 after reflection.
The power detection unit 2 is a radio frequency power meter.
The radio frequency heating device provided by the embodiment of the invention also comprises a heating clapboard, the heating clapboard is arranged in the heating cavity, the position of the heating clapboard is adjustable, and the heating cavity is divided according to the size, the incident power and the reflected power of the heated object so as to reduce the effective heating volume of the heating cavity and improve the heating efficiency. The effective heating volume is the volume of the space between the heating partition plate and the heating chamber for heating the object after the position of the heating partition plate is adjusted.
In some alternative embodiments, the heating baffle plate is made of the same material as the inner wall of the heating chamber to improve the heating efficiency. In some optional embodiments, the edge of the heating partition plate is close to the inner wall of the heating cavity, so that the tightness of the effective heating space is ensured, and the heating efficiency is further improved.
The smaller the volume of the heated object is, the smaller the effective heating volume of the heating cavity after adjustment is, the smaller the effective heating volume is, the lower the energy loss in the radio frequency transmission process is, and the higher the heating efficiency is.
In some alternative embodiments, a radio frequency heating apparatus, comprises: the device comprises a heating cavity, a radio frequency generating device 1, a heating partition plate, a first power detection unit and a second power detection unit.
The first power detection unit is connected with the radio frequency generation device 1 and is used for detecting the incident power of the radio frequency emitted by the radio frequency generation device 1.
And the second power detection unit is arranged on the top wall of the heating cavity and is used for detecting the reflected power of the radio frequency emitted by the radio frequency generation device 1 after the radio frequency is reflected.
In some alternative embodiments, the second power detection unit is disposed at a side wall of the heating chamber. In some optional embodiments, the radio frequency heating device comprises a plurality of second power detection units which are respectively arranged on the side wall and the top wall of the heating cavity, and the reflected power is determined according to the detection results of the plurality of second power detection units, so that the difference of the radio frequency power reflected to different side walls caused by the special shape of the heated object is avoided, and the accuracy of adjusting the heating partition plate is improved.
The first power detection unit and the second power detection unit are radio frequency power meters.
The radio frequency heating device provided by the embodiment of the invention comprises the heating partition plate and the power detection unit, the position of the heating partition plate is adjustable, the position of the heating partition plate is adjusted according to the size, the incident power and the reflected power of the heated object, the heating efficiency is improved by reducing the effective heating volume of the heating cavity, and the energy consumption is reduced.
In some alternative embodiments, as shown in fig. 2, the rf heating device further includes: a control module 3 and a position adjustment module 4.
The control module 3 is connected with the radio frequency generating device 1 and is used for controlling the radio frequency power emitted by the radio frequency generating device 1. The control module 3 is further connected to the power detection unit 2, and is configured to determine a heating effective rate according to the incident power and the reflected power detected by the power detection unit 2, and control the position adjustment module 4 to adjust the position of the heating partition plate when the heating effective rate is lower than a set value.
Specifically, the control module 3 is used for controlling the position adjusting module 4 according to the size, the incident power and the reflected power of the heated object so as to adjust the position of the heating partition plate, ensure that the effective heating volume is larger than the volume of the heated object, and avoid the heated object from touching the side wall of the heating cavity.
In some optional embodiments, the control module 3 is connected to the rf generating device 1, and is configured to control the rf power emitted by the rf generating device 1. The control module 3 is further connected with the position adjusting module 4, the first power detection unit and the second power detection unit, and is configured to determine a heating effective rate according to the incident power detected by the first power detection unit and the reflected power detected by the second power detection unit, and control the position adjusting module 4 to adjust the position of the heating partition plate when the heating effective rate is lower than a set value.
In some optional embodiments, the rf heating device further comprises an identification module, which is connected to the control module 3. And the identification module is used for identifying one or more of the length, the width and the height of the heated object so as to prevent the heated object from touching the side wall of the heating cavity when the position of the heating clapboard is adjusted by the control module 3.
In different embodiments, the heating partition plate can be arranged in various ways.
As an alternative embodiment, the heating baffle is arranged in the heating chamber parallel to the top wall of the heating chamber. When the effective heating volume of the heating cavity is reduced, the identification module is used for identifying the height of the heated object, and the heated object is prevented from touching the top of the heating cavity when the heating partition plate moves from bottom to top.
As an alternative embodiment, the heating partition is disposed in the heating chamber perpendicular to the top wall of the heating chamber. When the effective heating volume of the heating cavity is adjusted, the heating partition plate can move from left to right or right to left or from inside to outside. When the effective heating volume of the heating cavity is reduced, the identification module is used for identifying the length and the width of the heated object, and the heated object is prevented from touching the side wall of the heating cavity or touching the heating partition plate when the heating partition plate runs from left to right or runs from right to left or runs from inside to outside.
In different embodiments, the radio frequency generating device 1 can be arranged in various ways.
As an alternative embodiment, the radio frequency generating device 1 is arranged on the top wall of the heating chamber.
As an alternative embodiment, the radio frequency generating device 1 is disposed on the side wall of the heating chamber.
As an alternative embodiment, the radio frequency generating device 1 is disposed on the top wall and the side wall of the heating chamber to improve the uniformity and efficiency of heating.
As a preferred embodiment, the radio frequency generating device 1 is arranged on the top wall of the heating chamber. The heating clapboard is arranged in the heating cavity in parallel with the top wall of the heating cavity.
Fig. 2 is a flow chart illustrating a control method for an rf heating apparatus according to an exemplary embodiment, the method including:
in step S301, the size of the object to be heated, the incident power and the reflected power detected by the power detection unit are acquired.
Step S302, adjusting the position of the heating partition plate according to the size of the heated object, the incident power and the reflected power.
There are various ways to obtain the size of the heated object.
As an alternative embodiment, an identification unit is provided in the radio frequency heating apparatus for identifying the heated object and determining the volume of the heated object.
As an alternative embodiment, the rf heating device is provided with a heating volume option, and the user selects the heating volume option corresponding to the volume of the heated object before heating the object. Optionally, the heating volume options include 6 options as follows: 0-5L, 5-10L, 10-15L, 15-20L, 20-25L and 25-30L.
The radio frequency heating device provided by the embodiment of the invention comprises the heating partition plate and the power detection unit, the position of the heating partition plate is adjustable, the position of the heating partition plate is adjusted according to the size, the incident power and the reflected power of the heated object, the heating efficiency is improved by reducing the effective heating volume of the heating cavity, and the energy consumption is reduced.
In some optional embodiments, the control method for the radio frequency heating apparatus comprises:
the size of the heated object, the incident power detected by the first power detection unit, and the reflected power detected by the second power detection unit are acquired.
Adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
In some optional embodiments, the adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power in the above step S301 includes:
when the incident power is greater than or equal to a set power value and the ratio of the reflected power to the incident power is less than a set value, the position of the heating clapboard is adjusted according to the size of the heated object so as to reduce the effective heating volume of the heating cavity and improve the heating efficiency; wherein the effective heating volume is larger than the volume of the heated object.
When the incident power is greater than the set power value, the incident frequency is relatively high, and if the incident frequency is continuously increased, the risk of electromagnetic leakage exists. The set value of the ratio of the reflected power to the incident power is obtained according to a plurality of tests before the radio frequency heating device leaves a factory. When the incident power is larger than the set power value and the ratio of the reflected power to the incident power is smaller than the set value, the power loss is large, and the position of the heating partition plate is adjusted according to the size of the heated object, the incident power and the reflected power so as to reduce the effective heating volume of the heating cavity and improve the heating efficiency.
In some optional embodiments, before the adjusting the position of the heating partition plate according to the size of the heated object, the method further comprises:
length, width and/or height of the heated object.
When the position of the heating clapboard is adjusted, the distance between the heating clapboard and the heating cavity side wall is controlled according to the length or the width of the heated object, or the distance between the heating clapboard and the heating cavity top wall is controlled according to the height of the heated object, so that the heated object is prevented from touching the heating cavity side wall or the heating cavity top wall.
Specifically, when the heating partition plate is arranged in the heating cavity in parallel to the top wall of the heating cavity, the height of the heated object is acquired, and the heated object is prevented from touching the top of the heating cavity when the heating partition plate moves from bottom to top. When the heating partition plate is perpendicular to the top wall of the heating cavity and is arranged in the heating cavity, the length and the width of the heated object are obtained, and the heated object is prevented from touching the side wall of the heating cavity or touching the heating partition plate when the heating partition plate runs from left to right or runs from right to left or runs from inside to outside.
The following are embodiments of the apparatus provided by the embodiments of the present invention, and the following apparatus is used for executing the method provided by the foregoing embodiments.
Fig. 3 is a block diagram illustrating a control apparatus for an rf heating apparatus according to an exemplary embodiment, the apparatus including: a first acquisition unit 401 and an adjustment unit 402.
A first acquiring unit 401 for acquiring the size of the heated object, the incident power and the reflected power detected by the power detecting unit 2.
An adjusting unit 402 for adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
The smaller the volume of the heated object is, the smaller the effective heating volume of the heating cavity after adjustment is, the smaller the effective heating volume is, the lower the energy loss in the radio frequency transmission process is, and the higher the heating efficiency is.
There are various ways to obtain the size of the heated object.
As an alternative embodiment, an identification unit is provided in the radio frequency heating apparatus for identifying the heated object and determining the volume of the heated object.
As an alternative embodiment, the rf heating device is provided with a heating volume option, and the user selects the heating volume option corresponding to the volume of the heated object before heating the object. Optionally, the heating volume options include 6 options as follows: 0-5L, 5-10L, 10-15L, 15-20L, 20-25L and 25-30L.
The radio frequency heating device provided by the embodiment of the invention comprises the heating partition plate and the power detection unit, the position of the heating partition plate is adjustable, the position of the heating partition plate is adjusted according to the size, the incident power and the reflected power of the heated object, the heating efficiency is improved by reducing the effective heating volume of the heating cavity, and the energy consumption is reduced.
In some optional embodiments, the first obtaining unit 401 is configured to obtain a size of the heated object, the incident power detected by the first power detecting unit, and the reflected power detected by the second power detecting unit.
An adjusting unit 402 for adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
In some optional embodiments, the adjusting unit 402 is configured to adjust the position of the heating partition plate according to the size of the heated object to reduce the effective heating volume of the heating cavity to improve the heating efficiency when the incident power is greater than or equal to a set power value and the ratio of the reflected power to the incident power is less than a set value; wherein the effective heating volume is larger than the volume of the heated object, and the heated object is prevented from touching the side wall of the heating cavity.
In some optional embodiments, the control device further comprises: a second acquiring unit for acquiring the length, width and/or height of the heated object.
An adjustment unit 402 for controlling the distance between the heating partition and the heating chamber side wall according to the length or width of the heated object; alternatively, the distance between the heating partition and the heating chamber ceiling wall is controlled in accordance with the height of the object to be heated.
Specifically, when the heating partition plate is arranged in the heating cavity in parallel to the top wall of the heating cavity, the height of the heated object is acquired, and the heated object is prevented from touching the top of the heating cavity when the heating partition plate moves from bottom to top. When the heating partition plate is perpendicular to the top wall of the heating cavity and is arranged in the heating cavity, the length and the width of the heated object are obtained, and the heated object is prevented from touching the side wall of the heating cavity or touching the heating partition plate when the heating partition plate runs from left to right or runs from right to left or runs from inside to outside.
In an embodiment of the present invention, a radio frequency heating apparatus is provided, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the size of a heated object and incident power reflected power detected by the power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
The radio frequency heating electric appliance is a microwave oven, an oven, a thawing machine or a dryer which are commonly used in life and utilizes radio frequency.
In some optional embodiments, the processor is configured to: a
Acquiring the size of a heated object, the incident power detected by the first power detection unit and the reflected power detected by the second power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
In one embodiment of the present invention, a computer-readable storage medium is provided, having stored thereon computer instructions, which when executed by a processor, implement the steps of the above-described method.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as a memory comprising instructions, executable by a processor to perform the method described above is also provided. The non-transitory computer readable storage medium may be a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic tape, an optical storage device, and the like.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, it should be understood that the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
It should be understood that the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The present invention is not limited to the procedures and structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (11)
1. A radio frequency heating apparatus comprising: a heating cavity and a radio frequency generating device; it is characterized by also comprising: a heating partition plate and a power detection unit;
the power detection unit is used for detecting the incident power of the radio frequency emitted by the radio frequency generation device and the reflected power of the radio frequency emitted by the radio frequency generation device after reflection;
the heating clapboard is arranged in the heating cavity, and the position of the heating clapboard is adjustable according to the size of the heated object, the incident power and the reflected power.
2. The radio frequency heating apparatus according to claim 1, further comprising: the device comprises a control module and a position adjusting module connected with the control module;
the control module is connected with the radio frequency generating device and is used for controlling the radio frequency power transmitted by the radio frequency generating device;
the control module is connected with the power detection unit and used for controlling the position adjusting module according to the incident power and the reflected power detected by the power detection unit;
the position adjusting module is used for adjusting the position of the heating partition plate.
3. The radio frequency heating apparatus according to claim 2, further comprising: the identification module is connected with the control module;
the identification module is used for identifying the length, the width and/or the height of the heated object.
4. A control method for a radio frequency heating apparatus according to claims 1 to 3, characterized by comprising:
acquiring the size of a heated object, and incident power and reflected power detected by the power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
5. The control method according to claim 4, wherein said adjusting the position of the heating partition plate in accordance with the size of the heated object, the incident power, and the reflected power includes:
when the incident power is greater than or equal to a set power value and the ratio of the reflected power to the incident power is less than a set value, the position of the heating clapboard is adjusted according to the size of the heated object so as to reduce the effective heating volume of the heating cavity and improve the heating efficiency; wherein the effective heating volume is larger than the volume of the heated object.
6. The control method according to claim 5, further comprising, before said adjusting the position of the heating partition plate according to the size of the object to be heated:
acquiring the length, width and/or height of the heated object;
the adjusting the position of the heating partition plate according to the size of the heated object includes:
controlling a distance between the heating partition plate and the heating cavity side wall according to a length or a width of the heated object; alternatively, the distance between the heating partition plate and the heating chamber ceiling wall is controlled in accordance with the height of the heated object.
7. A control device for a radio frequency heating device as claimed in any one of claims 1 to 3, characterized by comprising:
a first acquisition unit configured to acquire the size of the heated object, the incident power and the reflected power detected by the power detection unit;
an adjusting unit for adjusting a position of the heating partition plate according to a size of the heated object, the incident power, and the reflected power.
8. The control apparatus according to claim 7, wherein the adjusting unit is configured to adjust the position of the heating partition plate according to the size of the heated object to reduce the effective heating volume of the heating chamber and improve the heating efficiency when the incident power is greater than or equal to a set power value and the ratio of the reflected power to the incident power is less than a set value; wherein the effective heating volume is larger than the volume of the heated object.
9. The control apparatus according to claim 8, further comprising:
a second acquiring unit for acquiring the length, width and/or height of the heated object;
the adjusting unit is used for controlling the distance between the heating clapboard and the heating cavity side wall according to the length or the width of the heated object; alternatively, the distance between the heating partition plate and the heating chamber ceiling wall is controlled in accordance with the height of the heated object.
10. A radio frequency heating appliance, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the size of a heated object and incident power reflected power detected by the power detection unit;
adjusting the position of the heating partition plate according to the size of the heated object, the incident power, and the reflected power.
11. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, carry out the steps of the method according to any one of claims 4 to 6.
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| CN201811444757.4A CN111246613B (en) | 2018-11-29 | 2018-11-29 | Radio frequency heating device, control method and device thereof, radio frequency heating electric appliance and storage medium |
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| CN201811444757.4A CN111246613B (en) | 2018-11-29 | 2018-11-29 | Radio frequency heating device, control method and device thereof, radio frequency heating electric appliance and storage medium |
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