CN218849757U - Rectangular-circular waveguide converter and drying device - Google Patents
Rectangular-circular waveguide converter and drying device Download PDFInfo
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- CN218849757U CN218849757U CN202223219704.7U CN202223219704U CN218849757U CN 218849757 U CN218849757 U CN 218849757U CN 202223219704 U CN202223219704 U CN 202223219704U CN 218849757 U CN218849757 U CN 218849757U
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Abstract
The utility model relates to a microwave conversion technology field discloses a rectangle circle waveguide converter and drying device, and rectangle circle waveguide converter includes the wave guide, and the wave guide includes rectangular waveguide section, circular waveguide section and transition waveguide section, and the transition waveguide section is including the first changeover portion and the second changeover portion that are connected, and rectangular waveguide section, first changeover portion, second changeover portion and circular waveguide section connect gradually. Wherein, along the direction from the rectangular waveguide section to the circular waveguide section, the cross-sectional area of the rectangular waveguide section is smaller than that of the circular waveguide section, and the cross-sectional area of the rectangular waveguide section is larger than that of the first transition section, the cross-sectional area of the second transition section is larger than that of the first transition section, and the cross-sectional area of the circular waveguide section is larger than that of the second transition section. The structure is simple, the processing difficulty is low, and the rectangular waveguide section and the circular waveguide section are in stepped transition through the arrangement of the transition waveguide section, so that the loss in the microwave conversion process is reduced.
Description
Technical Field
The embodiment of the utility model provides a relate to microwave conversion technical field, especially relate to a rectangle circle waveguide converter and drying device.
Background
The waveguide is a device for transmitting electromagnetic waves in microwave or specific wave band, is used in radio field of radio communication, radar, navigation and the like, and usually relates to different port forms of equipment, and rectangular and circular waveguide converters are needed because rectangular and circular ports are needed to be connected.
However, in the process of implementing the present application, the inventors find that most of the existing rectangular-circular waveguide converters adopt a gradual change structure, and the gradual change structure has a complex processing technology, a high processing difficulty, a high production and manufacturing cost, is not convenient for mass production by using a die-casting molding process, and has a large loss.
Therefore, it is necessary to invent a rectangular waveguide converter to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present invention provides a rectangular-circular waveguide converter and drying device to solve the technical problems of complex structure and large loss of the conventional converter.
The embodiment of the utility model provides a solve its technical problem and provide following technical scheme: the rectangular waveguide converter is applied to a drying device and comprises: the waveguide tube comprises a rectangular waveguide section, a circular waveguide section and a transition waveguide section, wherein the transition waveguide section comprises a first transition section and a second transition section which are connected, and the rectangular waveguide section, the first transition section, the second transition section and the circular waveguide section are sequentially connected;
wherein, along the direction from the circular waveguide segment to the rectangular waveguide segment, the cross-sectional area of the rectangular waveguide segment is smaller than that of the circular waveguide segment, and the cross-sectional area of the rectangular waveguide segment is larger than that of the first transition segment, the cross-sectional area of the second transition segment is larger than that of the first transition segment, and the cross-sectional area of the circular waveguide segment is larger than that of the second transition segment.
In some embodiments, a junction of the rectangular waveguide segment and the first transition segment is a first step plane, and a junction of the circular waveguide segment and the second transition segment is a second step plane.
In some embodiments, the second transition segment has an extended length greater than the first transition segment in a direction along which the rectangular waveguide segment extends to the circular waveguide segment.
In some embodiments, the waveguide is integrally formed.
In some embodiments, further comprising a first connector and a second connector;
the first connector is arranged at one end of the rectangular waveguide section far away from the transition waveguide section;
the second connector is arranged at one end of the circular waveguide section far away from the transition waveguide section.
In some embodiments, a first boss is disposed on the rectangular waveguide segment, a first groove is disposed on the first connector, and the first boss and the first groove are engaged with each other;
the circular waveguide section is provided with a second boss, the second connector is provided with a second groove, and the second boss and the second groove are mutually embedded.
In some embodiments, the first connector is soldered to the rectangular waveguide segment and the second connector is soldered to the circular waveguide segment.
In some embodiments, the first connector is provided with at least one first connection hole, and each first connection hole penetrates through two end faces of the first connector respectively; and/or
The second connector is provided with at least one second connecting hole, and each second connecting hole penetrates through two end faces of the second connector respectively.
The embodiment of the application further provides a drying device, including microwave source, box and foretell rectangle circular waveguide converter, the box includes the feed inlet, first connector with the microwave source is connected, the second connector with the feed inlet is connected.
The utility model discloses beneficial effect of embodiment:
compared with the prior art, the rectangular-circular waveguide converter and the drying device provided by the embodiment of the application have the advantages that the whole structure is simple, the processing difficulty is low, the ladder transition is adopted, the loss in the microwave conversion process can be effectively reduced, and in addition, the connectors are arranged at the two ends of the waveguide tube to help the rectangular-circular waveguide converter to be installed on external equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a rectangular-circular waveguide converter according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another view of the rectangular waveguide converter shown in FIG. 1;
FIG. 3 is a side view of the rectangular waveguide converter shown in FIG. 1;
FIG. 4 is a top view of the rectangular waveguide converter shown in FIG. 1;
FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is an enlarged view of the point A in FIG. 5
FIG. 7 is an enlarged view at B in FIG. 5;
fig. 8 is an enlarged view at C in fig. 5.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It is noted that when an element is referred to as being "fixed to"/"connected to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used herein, the terms "circumferential," "axial," and the like refer to an orientation or positional relationship that is based on the orientation or positional relationship as shown in the figures, which is meant only for the convenience of describing the application and simplifying the description, and is not meant to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first" and "second," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, fig. 1 is a rectangular waveguide converter 1000 according to an embodiment of the present invention, where the rectangular waveguide converter 1000 is used for matching different device ports to improve adaptability of waveguides in different application scenarios.
The rectangular waveguide converter 1000 described above can be applied to a drying apparatus. Specifically, referring to fig. 2, the rectangular waveguide converter 1000 includes a waveguide 100, a first connector 200 and a second connector 300, where the waveguide 100 includes a rectangular connecting end at one end for connecting with the first connector 200 and a circular connecting end at the other end for connecting with the second connector 300, the two connecting ends are communicated through a hollow cavity and used for transmitting signals, and the first connector 200 and the second connector 300 are used for connecting with an external device (including a drying device) to connect the rectangular waveguide converter 1000 to the external device, so as to implement waveguide transmission.
Specifically, referring to fig. 3 and 4, the waveguide tube 100 includes a rectangular waveguide segment 110, a circular waveguide segment 120, and a transition waveguide segment 130 connected between the rectangular waveguide segment 110 and the circular waveguide segment 120, wherein the cross-sectional area of the rectangular waveguide segment 110 is smaller than the cross-sectional area of the circular waveguide segment 120 along the direction from the rectangular waveguide segment 110 to the circular waveguide segment 120.
It is understood that the circular connecting end is the end of the circular waveguide section away from the transition waveguide section, and the rectangular connecting end is the end of the rectangular waveguide section away from the transition waveguide section.
It should be noted that the number of the transition sections in the transition waveguide section 130 may be 2, 3, 4, etc., and the present application does not limit the number, and may change accordingly according to the bandwidth requirement of the rectangular-circular waveguide converter, and the present application is described with the number of the transition sections in the transition waveguide section 130 being 2.
Referring to fig. 4-6, the junction of the rectangular waveguide segment 110 and the transition waveguide segment 130 forms a first step surface 101, and the junction of the circular waveguide segment 120 and the transition waveguide segment 130 forms a second step surface 102. Specifically, the transition waveguide segment includes a first transition segment 131 and a second transition segment 132 connected to each other, the rectangular waveguide segment 110, the first transition segment 131, the second transition segment 132 and the circular waveguide segment 120 are connected in sequence, along a direction in which the rectangular waveguide segment 110 extends to the circular waveguide segment 120, a cross-sectional area of the rectangular waveguide segment 110 is greater than a cross-sectional area of the first transition segment 131, a cross-sectional area of the second transition segment 132 is greater than a cross-sectional area of the first transition segment 131, a cross-sectional area of the circular waveguide segment 120 is greater than a cross-sectional area of the second transition segment 132, a connection between the rectangular waveguide segment 110 and the first transition segment 131 is a first step surface 101, and a connection between the circular waveguide segment 120 and the second transition segment 132 is a second step surface 102. In some embodiments, the extending length of the second transition section 132 is greater than the extending length of the first transition section 131 along the direction in which the rectangular waveguide section 110 extends to the circular waveguide section 120, so that the impedance of the waveguide is gradually changed during the transmission process of the waveguide from the rectangular waveguide section to the circular waveguide section, thereby effectively avoiding the phenomena of reflection, ringing, crosstalk and the like of the waveguide during the transmission process, and reducing signal attenuation.
The connection between the circular waveguide segment 120 and the rectangular waveguide segment 110 is in a step transition form, so that the converter 1000 has the characteristics of broadband and low insertion loss output, thereby effectively solving the problems of narrow bandwidth and large insertion loss caused by the conventional conversion structure. In addition, two connecting positions (the rectangular waveguide section and the transition waveguide section as well as the circular waveguide section and the transition waveguide section) are in stepped transition, so that the loss of waveguide transmission is further reduced, the problem that the waveforms of the waveguides are not matched when the waveguides are directly transited from the rectangular waveguide to the circular waveguide can be avoided, and the waveform conversion is realized more highly.
In some embodiments, the circular waveguide segment 120 and the transition waveguide segment 130 are integrally formed, for example, a circular waveguide is recessed into itself to form the transition waveguide segment, and the non-recessed portion of the circular waveguide is the circular waveguide segment.
In some embodiments, the waveguide tube 100 is integrally formed, i.e., the rectangular waveguide segment 110, the transition waveguide segment 130 and the circular waveguide segment 120 are integrally formed. Thereby, seamless connection is formed between the rectangular waveguide segment 110 and the transition waveguide segment 130, and between the transition waveguide segment 130 and the circular waveguide segment 120, and signal leakage can be avoided.
The first connector 200 is disposed at an end of the rectangular waveguide segment 110 away from the transition waveguide segment 130, and the second connector 300 is disposed at an end of the circular waveguide segment 120 away from the transition waveguide segment 130.
It will be appreciated that the first connector is rectangular and the second connector is circular.
In some embodiments, referring to fig. 7 and 8, the first connector 200 is communicated with the second connector 300, a first boss 111 is disposed on the rectangular waveguide segment 110, a first groove 201 is disposed on the first connector 200, the first boss 111 is engaged with the first groove 201, a second boss 121 is disposed on the circular waveguide segment 120, a second groove 301 is disposed on the second connector 300, and the second boss 121 is engaged with the second groove 301, so as to connect the first connector 200 and the second connector 300 to the waveguide 100. Or a first groove is arranged on the rectangular waveguide segment 110, a second groove is arranged on the circular waveguide segment 120, the first connector 200 is clamped in the first groove, and the second connector 300 is clamped in the second groove.
It is understood that the positions of the above-mentioned grooves and bosses may be interchanged, for example, the rectangular waveguide segment 110 is provided with a first groove, the first connector 200 is provided with a first boss, the first boss is engaged with the first groove, the circular waveguide segment 120 is provided with a second groove, the second connector 300 is provided with a second boss, and the second boss is engaged with the second groove.
In some embodiments, the rectangular waveguide segment 110 is provided with a first protrusion (not shown), and the first connector 200 is provided with a first hole, the first protrusion being received in the first hole, thereby fixing the first connector 200 to the rectangular waveguide segment 110. The circular waveguide section is provided with a second protrusion, the second connector is provided with a second hole, and the second protrusion is received in the second hole, thereby fixing the second connector 300 to the circular waveguide section 120.
It should be noted that both the first protrusion and the second protrusion can extend and contract, the first hole corresponds to the first protrusion one to one, and the second protrusion corresponds to the second hole one to one. Specifically, after the first connector is sleeved on the rectangular waveguide section, the first protrusion is pressed, the first protrusion contracts until the first protrusion is aligned with the first hole, the first protrusion is released, and the first protrusion recovers to accommodate the first protrusion in the first hole. The operation of the second protrusion is the same as that of the first protrusion, and will not be described herein.
It is understood that the number of the first protrusions is at least 2, and at least two of the first protrusions are respectively disposed on two opposite outer surfaces of the rectangular waveguide section 110 to ensure the stability of the first connector 200. The number of the second protrusions is at least 2, and at least two of the second protrusions are distributed on the outer surface of the circular waveguide section 120 along the diameter of the circular waveguide section.
In some embodiments, the first connector 200 is soldered to the rectangular waveguide section 110 and the second connector 300 is soldered to the circular waveguide section 120.
In some embodiments, as shown in fig. 4, at least one first connection hole 202 is disposed on the first connector 200, at least one second connection hole 302 is disposed on the second connector 300, each first connection hole 202 respectively penetrates through two end faces of the first connector 200 along the circumferential direction of the first connector 200, and each second connection hole 302 respectively penetrates through two end faces of the second connector 300 along the circumferential direction of the second connector. The first connector 200 is connected to an external device through the first connection hole 202, and the second connector 300 is connected to an external device through the second connection hole 302.
It should be noted that the end face of the first connector is a plane perpendicular to the axis of the circular waveguide segment on the first connector, the circumferential direction of the first connector is a direction around the axial direction of the circular waveguide segment, and the end face and the circumferential direction of the second connector are similar to those of the first connector, which will not be described herein again.
It is understood that the circular waveguide segment axis is parallel to the direction in which the rectangular waveguide segment extends to the circular waveguide segment.
In some embodiments, one of the first connector 200 and the second connector 300 may be provided with a connecting hole, for example, at least one first connecting hole 202 is provided on the first connector 200, or at least one second connecting hole 302 is provided on the second connector 300. The connector provided with the connecting hole can be connected to the external equipment through the connecting hole, and the connector without the connecting hole can be connected to the external equipment through other modes, such as welding, clamping, adhesion and the like.
The embodiment of the present application further provides a drying device (not shown), including a microwave source, a box body and the rectangular waveguide converter 1000, the box body includes a feeding port, the first connector 200 is connected with the microwave source, the second connector 300 is connected with the feeding port, so that the microwave is converted from the rectangular section output to the circular section output, and the loss during the microwave conversion is reduced.
The utility model provides a pair of rectangle circular waveguide converter and drying device, overall structure is simple, the processing degree of difficulty is low, through the setting of transition waveguide section for the ladder transition between rectangle waveguide section and the circular waveguide section reduces the loss among the microwave conversion process, in addition, through the setting of first connector and second connector, makes things convenient for the installation of rectangle circular waveguide converter.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a rectangular circular waveguide converter is applied to drying device, its characterized in that includes:
the waveguide tube comprises a rectangular waveguide section, a circular waveguide section and a transition waveguide section, wherein the transition waveguide section comprises a first transition section and a second transition section which are connected, and the rectangular waveguide section, the first transition section, the second transition section and the circular waveguide section are sequentially connected;
wherein, along the direction from the rectangular waveguide section to the circular waveguide section, the cross-sectional area of the rectangular waveguide section is smaller than that of the circular waveguide section, and the cross-sectional area of the rectangular waveguide section is larger than that of the first transition section, the cross-sectional area of the second transition section is larger than that of the first transition section, and the cross-sectional area of the circular waveguide section is larger than that of the second transition section.
2. The rectangular waveguide converter of claim 1,
a first step surface is formed at the joint of the rectangular waveguide section and the first transition section;
and a second step surface is formed at the joint of the circular waveguide section and the second transition section.
3. The rectangular waveguide converter of claim 1,
the second transition section has an extension length greater than that of the first transition section in a direction in which the rectangular waveguide section extends to the circular waveguide section.
4. The rectangular waveguide converter of claim 1,
the waveguide is integrally formed.
5. The rectangular waveguide converter of claim 1, further comprising a first connector and a second connector;
the first connector is arranged at one end of the rectangular waveguide section far away from the transition waveguide section;
the second connector is arranged at one end of the circular waveguide section far away from the transition waveguide section.
6. The rectangular waveguide converter of claim 5,
the rectangular waveguide section is provided with a first boss, the first connector is provided with a first groove, and the first boss and the first groove are mutually embedded;
the circular waveguide section is provided with a second boss, the second connector is provided with a second groove, and the second boss and the second groove are mutually embedded.
7. The rectangular waveguide converter of claim 5,
the first connector is soldered to the rectangular waveguide section and the second connector is soldered to the circular waveguide section.
8. The rectangular waveguide converter of claim 5,
the first connector is provided with at least one first connecting hole, and each first connecting hole penetrates through two end faces of the first connector respectively; and/or
The second connector is provided with at least one second connecting hole, and each second connecting hole penetrates through two end faces of the second connector respectively.
9. A drying apparatus, comprising:
a microwave source;
a box body comprising a feed inlet;
the rectangular waveguide converter according to any one of claims 5 to 8, wherein the first connector is connected to the microwave source and the second connector is connected to the feed port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223219704.7U CN218849757U (en) | 2022-12-02 | 2022-12-02 | Rectangular-circular waveguide converter and drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223219704.7U CN218849757U (en) | 2022-12-02 | 2022-12-02 | Rectangular-circular waveguide converter and drying device |
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| Publication Number | Publication Date |
|---|---|
| CN218849757U true CN218849757U (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223219704.7U Active CN218849757U (en) | 2022-12-02 | 2022-12-02 | Rectangular-circular waveguide converter and drying device |
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| CN (1) | CN218849757U (en) |
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- 2022-12-02 CN CN202223219704.7U patent/CN218849757U/en active Active
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