CN113365380A - Structural member for radiation heating, assembly and heating equipment - Google Patents
Structural member for radiation heating, assembly and heating equipment Download PDFInfo
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- CN113365380A CN113365380A CN202010153369.1A CN202010153369A CN113365380A CN 113365380 A CN113365380 A CN 113365380A CN 202010153369 A CN202010153369 A CN 202010153369A CN 113365380 A CN113365380 A CN 113365380A
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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
- H05B6/72—Radiators or antennas
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Abstract
The application relates to the technical field of heating, and discloses a structure for radiant heating, includes: the L-shaped sheet metal part comprises a first radiation section and a second radiation section which are perpendicular to each other; and the columnar piece is arranged on the first radiation section and is parallel to the second radiation section. A structure for radiant heating includes L shape sheet metal component and column, simple structure, and easily shaping is suitable for batch production, and the fixed structure should not damage in the course of the work, can increase of service life, and in the course of the work, two structures work in combination can improve radiant heating's homogeneity. The application also discloses an assembly and a heating device for radiant heating.
Description
Technical Field
The present application relates to the field of heating technology, for example to a structure, an assembly and a heating device for radiant heating.
Background
At present, heating equipment such as a microwave oven and a thawing machine is widely applied by users due to the advantages of rich functions, high heating rate and the like. In the traditional heating equipment, a magnetron generates electromagnetic waves, electromagnetic energy is transmitted to a waveguide stirring system through a waveguide tube, the waveguide stirring system couples the electromagnetic wave energy into a heating cavity of the heating equipment through the principle of gap coupling, and then the electromagnetic waves are used for heating articles. However, the size of the heating device is not too large based on the application of the heating device, and the limited size of the heating cavity limits the coupling of electromagnetic wave energy, which is likely to cause uneven heating of the article. The antenna assembly comprises a fixing piece and a telescopic piece, wherein the telescopic piece is adjusted in a specific using process, so that the state of the telescopic piece is matched with the input frequency of a microwave oven to improve the heating efficiency.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the antenna assembly in the prior art has a complex structure and has a wear risk after long-term use.
Disclosure of Invention
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 nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a structural part, an assembly and heating equipment for radiation heating, and aims to solve the technical problems that an antenna assembly in the prior art is complex in structure and has a wear risk in long-term use.
In some embodiments, the structure for radiant heating comprises: the L-shaped sheet metal part comprises a first radiation section and a second radiation section which are perpendicular to each other;
and the columnar piece is arranged on the first radiation section and is parallel to the second radiation section.
In some embodiments, the assembly for radiant heating comprises the first structural member and the second structural member described above, the first radiating section of the first structural member being parallel to the first radiating section of the second structural member;
the second radiating section of the first structural member is parallel to the second radiating section of the second structural member, and,
the first radiation section of the first structural member and the first radiation section of the second structural member are arranged in the same direction, and the second radiation section of the first structural member and the second radiation section of the second structural member are arranged in the same direction.
In some embodiments, the heating apparatus comprises: the microwave generator, the phase shifter, the heating cavity, the shell and the components for radiation heating;
said assembly for radiant heating disposed between said heating chamber and said housing;
the first structural part and the second structural part are arranged on the same side of the heating cavity;
the phase shifter includes: a first phase shifter connected to the first structural member and a second phase shifter connected to the second structural member;
and the microwave generator is connected with the first phase shifter and the second phase shifter.
The structural part, the assembly and the heating equipment for radiation heating provided by the embodiment of the disclosure can realize the following technical effects:
a structure for radiant heating includes L shape sheet metal component and column, simple structure, and easily shaping is suitable for batch production, and the fixed structure should not damage in the course of the work, can increase of service life, and in the course of the work, two structures work in combination can improve radiant heating's homogeneity.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic structural view of a structural member for radiant heating provided by embodiments of the present disclosure;
FIG. 2 is a schematic structural view of another structural member for radiant heating provided by embodiments of the present disclosure;
FIG. 3 is a schematic structural view of another structural member for radiant heating provided by embodiments of the present disclosure;
FIG. 4 is a schematic structural diagram of an assembly for radiant heating provided by embodiments of the present disclosure;
FIG. 5 is a schematic structural diagram of another assembly for radiant heating provided by an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of another assembly for radiant heating provided by an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a heating apparatus provided in the embodiments of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
The antenna assembly applied to the heating device is suitable for the device which applies ultrahigh frequency microwave to heat, and is particularly applied to the frequency of 2.4 GHz-2.5 GHz, the risk that microwave leakage damages a user exists in the heating device, the risk that microwave leakage occurs is large along with the increase of the microwave frequency, and the existing heating device can heat by adopting the microwave with the frequency lower than 2.4 GHz-2.5 GHz for reducing the risk of microwave leakage of the heating device. When the heating equipment disclosed in the embodiment of the disclosure works, the microwave frequency is 600 MHz-650 MHz. When the antenna component in the prior art is applied to the condition that the microwave frequency is 600 MHz-650 MHz, the oversize of the antenna can cause the volume of heating equipment to be large, and the manufacturing cost is increased.
Fig. 1 is a schematic structural diagram of a structural member for radiant heating according to an embodiment of the present disclosure, the structural member including: an L-shaped sheet metal part 1 and a column part 2.
The L-shaped sheet metal part 1 comprises a first radiation section 11 and a second radiation section 12 which are perpendicular to each other.
The column-shaped member 2 is disposed on the first radiation section 11 and is parallel to the second radiation section 12.
Wherein, the columnar part 2 is fixedly connected with the L-shaped sheet metal part 1. Optionally, in the production process of the structural member for radiation heating, the columnar member 2 and the L-shaped sheet metal member 1 are integrally formed. In the specific heating working process, the shape of the structural part can not be changed, and the reduction of the heating efficiency and the service life of the structural part due to running abrasion are avoided.
In the embodiment of the disclosure, a structure for radiant heating includes L shape sheet metal component and column, simple structure, and easily shaping is suitable for batch production, and the structure is fixed and should not damage in the course of the work, can increase of service life, and in the course of the work, two structures work in combination can improve radiant heating's homogeneity.
In different embodiments, the structural members have different forms, depending on the actual working requirements.
Fig. 2 is a schematic structural diagram of another structural member for radiant heating provided by an embodiment of the present disclosure, the structural member including: l-shaped sheet metal component 1, column 2 and extension 3.
And the extension section 3 extends along the end part of the first radiation section 11 on a plane perpendicular to the second radiation section 12, and the extension direction is perpendicular to the first radiation section 11.
Fig. 3 is a schematic structural diagram of another structural member for radiant heating provided by an embodiment of the present disclosure, the structural member including: l-shaped sheet metal component 1, column 2 and extension 3.
Wherein the extension section 3 comprises: a first extension 31 and a second extension 32.
The first extension 31 extends along the end of the first radiating section 11 on a plane perpendicular to the second radiating section 12, and the extending direction is perpendicular to the first radiating section 11.
The second extension 32 extends along the end of the first extension 31 in a plane perpendicular to the second radiating section 12 and in a direction perpendicular to the first extension 31, i.e. parallel to the first radiating section 11.
As shown in fig. 2 and 3, the structural member for radiation heating is provided, wherein the extension section 3 is made of the same material as the L-shaped sheet metal member 1, and the cross section has the same shape and size, when the structural member is applied to a heating device, the first radiation section 11 can be infinitely extended without considering the influence of the structural member on the volume and cost of the heating device, and the extension direction is perpendicular to the extension section 3 of the first radiation section 11.
Fig. 4 is a schematic structural view of an assembly for radiant heating provided by an embodiment of the present disclosure, which includes a first structural member 10 and a second structural member 20. The first structural member 10 and the second structural member 20 are structural members shown in fig. 1.
The first structural member 10 includes: an L-shaped sheet metal part 101 and a column part 102.
The L-shaped sheet metal part 101 comprises a first radiation section 1011 and a second radiation section 1012 which are perpendicular to each other.
The column 102 is disposed on the first radiating section 1011 and parallel to the second radiating section 1012.
The second structural member 20 includes: an L-shaped sheet metal part 201 and a column part 202.
The L-shaped sheet metal part 201 includes a first radiation section 2011 and a second radiation section 2012 which are perpendicular to each other.
The column 202 is disposed on the first radiation section 2011 and is parallel to the second radiation section 2012.
When the first structural member 10 and the second structural member 20 are combined, the first radiating section 1011 of the first structural member 10 is parallel to the first radiating section 2011 of the second structural member 20. The second radiating section 1012 of the first structural member 10 is parallel to the second radiating section 2012 of the second structural member 20, the first radiating section 1011 of the first structural member 10 and the first radiating section 2011 of the second structural member 20 are arranged in the same direction, and the second radiating section 1012 of the first structural member 10 and the second radiating section 2012 of the second structural member 20 are arranged in the same direction.
The first radiating section 1011 of the first structural member 10 and the first radiating section 2011 of the second structural member 20 are arranged in the same direction, and the free ends of the first radiating section and the second radiating section are arranged in the corresponding direction. The second radiating section 1012 of the first structural element 10 and the second radiating section 2012 of the second structural element 20 are arranged in the same direction and are likewise arranged in a direction corresponding to the free ends. The symmetry of the radiation magnetic field in the radiation heating process between the first structural member 10 and the second structural member 20 is ensured, and the electromagnetic wave radiated by the first structural member 10 is prevented from being coupled with the electromagnetic wave radiated by the second structural member 20 to reduce the heating efficiency.
In the embodiment of the disclosure, the subassembly for radiant heating includes two structures that are used for radiant heating that the symmetry set up, wherein the structure includes L shape sheet metal component and column, moreover, the steam generator is simple in structure, easily shaping, be suitable for batch production, the structure is fixed should not damage in the course of the work, can increase of service life, in the course of the work, two structures work in combination can improve radiant heating's homogeneity, two structures symmetry settings that are used for radiant heating, avoided two structures transmission to obtain signal mutual interference, the heating efficiency is improved.
In different embodiments, the structural elements in the assembly for radiant heating have different forms, depending on the actual working requirements and the installation requirements.
Fig. 5 is a schematic structural diagram of another assembly for radiant heating provided by an embodiment of the present disclosure, the assembly including: a first structural member 10 and a second structural member 20. The first structural member 10 and the second structural member 20 are structural members shown in fig. 2.
The first structural member 10 includes: an L-shaped sheet metal part 101, a column part 102 and an extension 103.
The second structural member 20 includes: an L-shaped sheet metal part 201, a column part 202 and an extension 203.
The extension 103 of the first structural member 10 and the extension 203 of the second structural member 20 are perpendicular to the first radiating section 1011 and extend in opposite directions.
Since the first radiating section 1011 of the first structural member 10 is parallel to the first radiating section 2011 of the second structural member 20, the extending section 103 of the first structural member 10 is perpendicular to the first radiating section 1011 and perpendicular to the first radiating section 2011 of the second structural member 20. Similarly, the extension 203 of the second structural member 20 is perpendicular to the first radiating section 1011 and perpendicular to the first radiating section 2011 of the second structural member 20.
The first radiating section 1011 of the first structural member 10 and the first radiating section 2011 of the second structural member 20 are arranged in the same direction, and the free ends of the first radiating section and the second radiating section are arranged in the corresponding direction. The second radiating section 1012 of the first structural member 10 and the second radiating section 2012 of the second structural member 20 are arranged in the same direction and in a direction corresponding to the extending direction of the second radiating section. The extension 103 of the first structural member 10 is disposed in an opposite direction to the extension 203 of the second structural member 20. The symmetry of the radiation magnetic field in the radiation heating process between the first structural member 10 and the second structural member 20 is ensured, and the electromagnetic wave radiated by the first structural member 10 is prevented from being coupled with the electromagnetic wave radiated by the second structural member 20 to reduce the heating efficiency.
Fig. 6 is a schematic structural diagram of another assembly for radiant heating provided by an embodiment of the present disclosure, the assembly including: a first structural member 10 and a second structural member 20. The first structural member 10 and the second structural member 20 are structural members shown in fig. 3.
The first structural member 10 includes: an L-shaped sheet metal part 101, a column part 102 and an extension 103. The extension section 103 includes: a first extension 1031 and a second extension 1032. The first extension 1031 extends along an end of the first radiating section 1011 on a plane perpendicular to the second radiating section 1012, and the extending direction is perpendicular to the first radiating section 1011. The second extension 1032 extends along an end of the first extension 1031 on a plane perpendicular to the second radiating section 1012, and extends in a direction perpendicular to the first extension 1031, i.e., parallel to the first radiating section 1011.
The second structural member 20 includes: an L-shaped sheet metal part 201, a column part 202 and an extension 203. The extension section 203 includes: a first extension 2031 and a second extension 2032. The first extension portion 2031 extends along an end of the first radiation portion 2011 on a plane perpendicular to the second radiation portion 2012, and the extending direction is perpendicular to the first radiation portion 2011. The second extending portion 2032 extends along the end of the first extending portion 2031 on a plane perpendicular to the second radiating portion 2012, and the extending direction is perpendicular to the first extending portion 2031, i.e. parallel to the first radiating portion 2011.
The first extension 1031 of the first structural member 10 and the first extension 2031 of the second structural member 20 extend perpendicular to the first radiation section 1011 and in opposite directions, and the second extension 1032 of the first structural member 10 and the second extension 32 of the second structural member 20 extend in the same direction and extend toward the second radiation section 1012.
The first radiating section 1011 of the first structural member 10 and the first radiating section 2011 of the second structural member 20 are arranged in the same direction, and the free ends of the first radiating section and the second radiating section are arranged in the corresponding direction. The second radiating section 1012 of the first structural member 10 and the second radiating section 2012 of the second structural member 20 are arranged in the same direction and in a direction corresponding to the extending direction of the second radiating section. The symmetry of the radiation magnetic field in the radiation heating process between the first structural member 10 and the second structural member 20 is ensured, and the electromagnetic wave radiated by the first structural member 10 is prevented from being coupled with the electromagnetic wave radiated by the second structural member 20 to reduce the heating efficiency.
In some embodiments, the first structural member 10 and the second structural member 20 of the assembly for radiation heating are identical in structure, and when the assembly is used for a heating device, the first structural member 10 and the second structural member 20 are arranged in a central symmetry mode, so that the radiation magnetic field is symmetrical, and the electromagnetic waves radiated by the first structural member 10 are prevented from being coupled with the electromagnetic waves radiated by the second structural member 20, and the heating efficiency is reduced.
Alternatively, when arranged in a central symmetry, the column 102 of the first structural member 10 is adjacent to the second radiant section 2012 of the second structural member 20 and parallel to the second radiant section 2012 of the second structural member 20, and the second radiant section 1012 of the first structural member 10 is adjacent to the second radiant section 2012 of the second structural member 20 and parallel to the column 202 of the second structural member 20.
Fig. 7 is a schematic structural diagram of a heating apparatus provided in an embodiment of the present disclosure, and as shown in fig. 7, the heating apparatus includes: a heating chamber 4, a housing 5 and a component 6 for radiant heating, the heating device further comprising a microwave generator and a phase shifter (not shown in the figures). As an exemplary schematic view, the assembly 6 for radiant heating shown in fig. 7 is the structure shown in fig. 6. Alternatively, the assembly 6 for radiant heating may be of the construction shown in fig. 4 or 5.
Wherein the microwave generator is configured to emit microwaves.
And a phase shifter configured to adjust a phase of the microwave before the microwave is radiated from the structure for radiation heating, so as to improve uniformity of heating, improve a heating effect of heating food, and improve heating efficiency when the heating object is food. The technology of changing and adjusting the phase of the microwave through the phase shifter is relatively mature, and the heating equipment in the application is suitable for the technology of changing and adjusting the phase of the microwave through the phase shifter in the prior art, so that a specific adjusting scheme is not limited any more.
An assembly 6 for radiant heating is arranged between the heating chamber and the housing. I.e. the first structure 10 and the second structure 20, are arranged on the same side of the heating chamber.
In some embodiments, the phase shifter comprises: a first phase shifter connected to the first structural member 10 and a second phase shifter connected to the second structural member 20. And the microwave generator is connected with the first phase shifter and the second phase shifter.
In some embodiments, the number of microwave generators is one, connecting the first phase shifter and the second phase shifter.
In some embodiments, the number of microwave generators is two, one phase shifter being associated with each microwave generator.
In different embodiments, the arrangement of the components 6 for radiant heating is different.
In some embodiments the heating device comprises one component 6 for radiant heating and is arranged outside the left side wall, the right side wall, the rear side wall, the top surface or the bottom surface of the heating chamber.
Optionally, the heating device includes an assembly 6 for radiation heating, and is disposed outside the heating cavity top surface, in the practical application process, the assembly 6 for radiation heating can meet the heating requirement, and can reduce the cost and the volume of the heating device, and is disposed on the heating cavity top surface, thereby improving the uniformity of microwave radiation.
In some embodiments, the heating device comprises two or more components 6 for radiant heating, which are arranged outside the left side wall, outside the right side wall, outside the rear side wall, outside the top surface or outside the bottom surface of the heating chamber, and different components 6 for radiant heating are arranged on different sides of the heating chamber 4.
According to the shape difference of the heated article, the position of the electromagnetic field intensity in the thawing cabinet can be required to be changed, at the moment, the phase of a single or a plurality of structural members can be changed through the phase shifter, so that the superposition of the electromagnetic wave radiated by the structural members in the thawing cavity is changed, the position with high electromagnetic field intensity is changed along with the change of the phase, and the heated article is uniformly heated at different positions.
In some embodiments, the first structure 10 and the second structure 20 are symmetrically disposed on both sides of the center line of the adjacent heating cavity side.
In some embodiments, the first formation 10 and the second formation 20 are arranged in a direction in which the column is perpendicular to the adjacent side of the heating chamber. This arrangement reduces the space occupied and avoids an increase in the size of the housing when the assembly 6 for radiant heating is arranged between the heating chamber and the housing. Optionally, the free end of the column is disposed in a direction away from the adjacent side of the heating chamber. Optionally, in a direction in which the free end of the column points to the side of the adjacent heating chamber. When the first structural member 10 and the second structural member 20 are disposed outside the bottom surface of the heating chamber, the holding column is perpendicular to the ground, and the free end is directed to the top surface of the heating chamber, so as to improve the radiation efficiency of the electromagnetic wave energy.
In some embodiments, the distance between the first structural member 10 and the second structural member 20 is determined according to the operating frequency of the microwave generator. Therefore, the distance between the first structural member 10 and the second structural member 20 is ensured not to cause interference or coupling of radiation signals of the first structural member 10 and the second structural member 20, and the heating efficiency of the heating device is improved.
In some embodiments, the distance between the first structural member 10 and the second structural member 20 has the following relationship:
wherein X is a correction value; c is the speed of light and f is the operating frequency. Optionally, X is 10 mm.
In some embodiments, the correction value X has the following relationship with the dimensions of the housing of the heating device:
X＝k*x+m*y+n*z
wherein k, m and n are adjustment coefficients, and x, y and z are the length, width and height of the heating device, respectively. Since the first structural member 10 and the second structural member 20 radiate microwave signals into the sealed heating cavity when heating in this application, the propagation path of the signals is affected in the heating cavity, and the heating efficiency is affected by the specific application environment.
In some embodiments, the distance between the first structural member 10 and the second structural member 20 is within a set range
And (4) the following steps.
In some embodiments, the distance between the pillar 102 and the second radiating section 1012 in the first structural member 10 is determined according to the operating frequency of the microwave generator; the distance between the post 202 and the second radiating section 2012 in the second structure 20 is determined based on the operating frequency of the microwave generator. Therefore, the distance between the columnar piece and the second radiation section is ensured not to cause signal interference or coupling between the columnar piece and the second radiation section, and the heating efficiency of the heating equipment is improved.
In some embodiments, the distance between the post 102 and the second radiating section 1012 in the first structural member 10, and the distance between the post 202 and the second radiating section 2012 in the second structural member 20, have the following relationship to the operating frequency of the microwave generator:
wherein D' is the distance between the column and the second radiating section; y is a correction value; c is the speed of light and f is the operating frequency. Optionally, Y is 5 mm.
In some embodiments, the correction value Y has the following relationship with the dimensions of the housing of the heating device:
Y＝k'*x+m'*y+n'*z
wherein k ', m ' and n ' are adjustment coefficients, and x, y and z are the length, width and height of the heating device, respectively. Since the first structural member 10 and the second structural member 20 radiate microwave signals into the sealed heating cavity when heating in this application, the propagation path of the signals is affected in the heating cavity, and the heating efficiency is affected by the specific application environment.
In some embodiments, the area of the cross section of the column parallel to the first radiating section is determined in accordance with the requirements of the nominal frequency and/or structural strength. The larger the rated power is, the larger the area of the cross section is, and the radiation efficiency is improved, so that the heating efficiency of the heating equipment is improved. The larger the structural strength requirement is, the larger the area of the cross section is, and the reduction of the signal radiation efficiency caused by the deformation of the radiation heating component caused by extrusion is avoided.
In some embodiments, the total length of the first radiating section 1011 and the extension section 103 of the first structural member 10 is the same as the total length of the first radiating section 2011 and the extension section 203 of the second structural member 20, and is determined according to the operating frequency of the microwave generator.
In some embodiments, the total length of the first radiating section and the extension section has the following relationship to the operating frequency of the microwave generator:
wherein, H is the total length of the first radiation section and the extension section; z is a correction value; c is the speed of light and f is the operating frequency. Optionally, the value range of Z is-5 mm.
The correction value Z has the following relationship with the dimensions of the housing of the heating device:
Z＝k”*x+m”*y+n”*z
wherein k ", m" and n "are adjustment coefficients, and x, y and z are the length, width and height of the heating device, respectively. Since the first structural member 10 and the second structural member 20 radiate microwave signals into the sealed heating cavity when heating in this application, the propagation path of the signals is affected in the heating cavity, and the heating efficiency is affected by the specific application environment.
In some embodiments, after determining the total length of the first radiating section and the extension section according to the above relationship, the lengths of the first radiating section and the extension section are determined according to the ratio of the length, the width and the height of the heating device, respectively. To ensure that the first structural part 10 and the second structural part 20 can be arranged in the heating device.
In some embodiments, the height of the posts 102 of the first structural member 10 and the posts 202 of the second structural member 20 is related to the impedance of the first and second structural members 10, 20, which matches the actual application environment during a particular operation, and in the disclosed embodiment, the height of the posts is determined based on the operating frequency of the microwave generator.
In some embodiments, the height of the pillars has the following relationship with the operating frequency of the microwave generator:
wherein G is the height of the column; c is the speed of light and f is the operating frequency.
In some embodiments, the height of the column is less than or equal to the set value in order to avoid the height of the column being too high and increasing the cost of the heating apparatus. Optionally, the value range of the set value is 60 mm-70 mm. Optionally, the set value is 60mm, 65mm or 70 mm.
In some embodiments, the first structure 10 and the second structure 20 of the assembly 6 for radiant heating are identical in structure, and the first structure 10 and the second structure 20 are symmetrically arranged around the center point of the adjacent heating cavity side, so that the radiating magnetic field is symmetrical, and the electromagnetic wave radiated by the first structure 10 is prevented from being coupled with the electromagnetic wave radiated by the second structure 20, and the heating efficiency is reduced.
Alternatively, the column 102 of the first structure 10 is adjacent to the second radiant section 2012 of the second structure 20 and parallel to the second radiant section 2012 of the second structure 20, and the second radiant section 1012 of the first structure 10 is adjacent to the second radiant section 2012 of the second structure 20 and parallel to the column 202 of the second structure 20.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural 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 embodiments of the present disclosure are not limited to the 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 present disclosure is limited only by the appended claims.
Claims (10)
1. A structural member for radiant heating, comprising:
the L-shaped sheet metal part comprises a first radiation section and a second radiation section which are perpendicular to each other;
and the columnar piece is arranged on the first radiation section and is parallel to the second radiation section.
2. The structural member of claim 1, further comprising:
the extension section extends along the end part of the first radiation section on a plane perpendicular to the second radiation section, and the extension direction is perpendicular to the first radiation section.
3. An assembly for radiant heating comprising a first structural member and a second structural member according to claim 1,
the first radiating section of the first structural member is parallel to the first radiating section of the second structural member;
the second radiating section of the first structural member is parallel to the second radiating section of the second structural member, and,
the first radiation section of the first structural member and the first radiation section of the second structural member are arranged in the same direction, and the second radiation section of the first structural member and the second radiation section of the second structural member are arranged in the same direction.
4. The assembly of claim 3, the first and second structural members each further comprising an extension, wherein the extensions of the first and second structural members extend perpendicular to the first radiating section and in opposite directions.
5. A heating apparatus comprising: a microwave generator, a phase shifter, a heating chamber, a housing and a component for radiant heating according to claim 3 or 4; it is characterized in that the preparation method is characterized in that,
said assembly for radiant heating disposed between said heating chamber and said housing;
the first structural part and the second structural part are arranged on the same side of the heating cavity;
the phase shifter includes: a first phase shifter connected to the first structural member and a second phase shifter connected to the second structural member;
and the microwave generator is connected with the first phase shifter and the second phase shifter.
6. The heating apparatus of claim 5 wherein the first structure and the second structure are symmetrically disposed on opposite sides of a center line of adjacent sides of the heating cavity.
7. The heating apparatus of claim 5, wherein the distance between the first structural member and the second structural member is determined according to an operating frequency of the microwave generator.
8. The heating apparatus of claim 5 wherein the first structure and the second structure are arranged in a direction in which the column is perpendicular to the adjacent side of the heating chamber.
9. The heating apparatus of claim 5, wherein the distance between the first and second structures is determined according to an operating frequency of the microwave generator.
10. The heating apparatus of claim 9, wherein the distance between the first and second structures and the operating frequency of the microwave generator has the following relationship:
wherein λ is the wavelength of the working frequency under vacuum; x is a correction value; c is the speed of light and f is the operating frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153369.1A CN113365380A (en) | 2020-03-06 | 2020-03-06 | Structural member for radiation heating, assembly and heating equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153369.1A CN113365380A (en) | 2020-03-06 | 2020-03-06 | Structural member for radiation heating, assembly and heating equipment |
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| CN113365380A true CN113365380A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010153369.1A Pending CN113365380A (en) | 2020-03-06 | 2020-03-06 | Structural member for radiation heating, assembly and heating equipment |
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| Country | Link |
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| CN (1) | CN113365380A (en) |
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