Split type novel waveguide structure

Abstract

The utility model discloses a split type novel waveguide structure which comprises an upper connecting block and a lower connecting block which are arranged in a stacked mode. The lower connecting block is provided with an installation arc-shaped concave groove, the upper connecting block is provided with an installation arc-shaped protruding strip, the installation arc-shaped protruding strip is matched with the installation arc-shaped concave groove, the installation arc-shaped concave groove is a waveguide arc-shaped concave groove, and the waveguide arc-shaped concave groove is formed in the middle of the installation arc-shaped concave groove. The beneficial effects of the utility model are that through the above split type design, the structure design can be simplified, the whole waveguide cavity is divided into an upper part and a lower part, the traditional design mode that a plurality of parts are needed to be assembled is replaced, and the design difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to a split type novel waveguide structure. Background Art

[0002] Waveguide adapter is a widely used microwave device. It is a key device for signal connection in antenna feed, transceiver components and other equipment in the fields of microwave communication, radar search, electronic countermeasures, etc. Its main function is to realize the transmission of microwave signals in different waveguide devices and systems. It is a device used to convert different types of waveguides to another type of waveguide. Among them, curved waveguide converters are usually used in waveguide transmission lines in radar and communication systems. Their function is to guide electromagnetic waves transmitted in a straight line to a curved path to achieve the desired transmission direction or layout.

[0003] The traditional waveguide adapter structure design is relatively complex, and each part needs to be independently processed and then welded together, involving various processing methods such as bending, cutting, electroplating, and welding. After the accumulation of various processing errors, it is difficult to ensure the accuracy of the final product, and the efficiency is low. In view of this, the utility model proposes a split new waveguide structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a new split waveguide structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A split new waveguide structure comprises an upper connecting block and a lower connecting block, wherein the upper connecting block and the lower connecting block are stacked;

[0007] The lower connecting block is provided with an installation arc-shaped recessed groove, and the upper connecting block is provided with an installation arc-shaped raised strip, the installation arc-shaped raised strip matches the installation arc-shaped recessed groove, a waveguide arc-shaped recessed groove is formed in the installation arc-shaped recessed groove, the waveguide arc-shaped recessed groove is arranged at the middle position of the installation arc-shaped recessed groove, and the installation arc-shaped raised strip is placed in the installation arc-shaped recessed groove, so that the waveguide arc-shaped recessed groove forms a waveguide tube.

[0008] As an improvement of the above technical solution, two groups of connecting flanges are arranged on the lower connecting block, and the connecting flanges include an upper raised plate and a lower raised plate. The two groups of upper raised plates are respectively arranged at the two ends of the installation arc-shaped raised strip, and the two groups of lower raised plates are respectively arranged at the two ends of the installation arc-shaped recessed groove.

[0009] As an improvement of the above technical solution, upper docking plates are provided on the two groups of upper raised plates, and lower docking plates are provided on the two groups of lower raised plates.

[0010] As an improvement of the above technical solution, the installation arc-shaped recessed groove is further provided with two groups of connecting arc-shaped recessed grooves, and the waveguide arc-shaped recessed groove is provided between the two groups of connecting arc-shaped recessed grooves;

[0011] The connecting arc-shaped recessed groove is provided with a plurality of groups of lower threaded holes, the mounting arc-shaped raised strip is provided with a plurality of groups of upper threaded holes, the upper threaded holes penetrate the upper connecting block, the positions of the plurality of groups of lower threaded holes match the positions of the plurality of groups of upper threaded holes, and bolts are provided between the upper threaded holes and the lower threaded holes.

[0012] As an improvement of the above technical solution, two groups of connecting positioning pins are provided on the connecting arc-shaped recessed groove, and two groups of connecting positioning holes are provided on the mounting arc-shaped raised strip. The connecting positioning holes do not penetrate the upper connecting block, and the two groups of connecting positioning holes match the positions of the two groups of connecting positioning pins.

[0013] As an improvement of the above technical solution, ribs are arranged between the two groups of connecting arc-shaped recessed grooves and the waveguide arc-shaped recessed grooves.

[0014] As an improvement of the above technical solution, two groups of connecting pins are arranged on the connecting flange, and the two groups of connecting pins are arranged on the upper raised plate and the lower raised plate respectively;

[0015] The connecting flange is also provided with two groups of connecting pin holes, and the two groups of connecting pin holes are respectively arranged on the upper raised plate and the lower raised plate.

[0016] As an improvement of the above technical solution, four groups of docking holes are further arranged on the connecting flange, one group of the docking holes is arranged on the upper raised plate, and three groups of the docking holes are arranged on the lower raised plate.

[0017] As an improvement of the above technical solution, the upper connecting block, the upper raised plate and the upper docking plate are an integrally formed structure;

[0018] The lower connecting block, the lower raised plate and the lower docking plate are an integrally formed structure.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] During assembly, the upper connecting block is docked on the lower connecting block, and the installation arc-shaped protruding strip is stuck in the installation arc-shaped recessed groove, so that the waveguide arc-shaped recessed groove is shielded by the installation arc-shaped protruding strip, so that the waveguide arc-shaped recessed groove is changed from a groove body to a tubular shape to form a waveguide cavity, and then the upper connecting block and the lower connecting block are connected as a whole;

[0021] Of course, due to this open structure, the waveguide arc-shaped recessed groove can be electroplated, laying the foundation for good electrical performance;

[0022] The above-mentioned split design can simplify the structural design and divide the entire waveguide cavity into two parts, replacing the traditional design method that requires multiple parts to be assembled, thereby reducing the design difficulty. A non-center parting design is adopted to retain the complete waveguide port structure, avoid the problem of misalignment of the waveguide port, and ensure the dimensional accuracy of the waveguide cavity. Moreover, the upper and lower parts can be formed separately by high-precision processing using CNC machine tools, which greatly reduces the manufacturing difficulty and improves the manufacturing accuracy and efficiency. At the same time, it can also reduce process steps such as welding and assembly, reduce the accumulated errors in the manufacturing process, and improve the consistency of product manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a side view of the utility model;

[0025] Figure 3 It is the front view of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the lower connecting block of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the upper connecting block of the utility model.

[0028] In the figure: 10, upper connecting block; 11, upper threaded hole; 12, installation arc-shaped raised strip; 13, connection positioning hole; 20, lower connecting block; 21, waveguide arc-shaped recessed groove; 22, connection arc-shaped recessed groove; 23, lower threaded hole; 24, rib; 25, connection positioning pin; 26, installation arc-shaped recessed groove; 30, connection flange; 31, upper raised plate; 32, upper docking plate; 33, lower docking plate; 34, connection pin; 35, lower raised plate; 36, docking hole; 37, connection pin hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example:

[0031] like Figure 1-5 As shown, this embodiment proposes a split new waveguide structure, including an upper connecting block 10 and a lower connecting block 20, wherein the upper connecting block 10 and the lower connecting block 20 are stacked;

[0032] The lower connecting block 20 is provided with an installation arc-shaped recessed groove 26, and the upper connecting block 10 is provided with an installation arc-shaped raised strip 12, and the installation arc-shaped raised strip 12 matches with the installation arc-shaped recessed groove 26, and a waveguide arc-shaped recessed groove 21 is provided in the installation arc-shaped recessed groove 26, and the waveguide arc-shaped recessed groove 21 is provided at the middle position of the installation arc-shaped recessed groove 26, and the installation arc-shaped raised strip 12 is placed in the installation arc-shaped recessed groove 26, so that the waveguide arc-shaped recessed groove 21 forms a waveguide tube.

[0033] In this case, the lower connecting block 20 and the structure on the lower connecting block 20 are all processed and formed by a high-precision CNC machine tool at one time, and the upper connecting block 10 and the structure on the upper connecting block 10 are also processed and formed by a high-precision CNC machine tool at one time. The plane of the arc-shaped raised strip 12 facing the lower connecting block 20 is processed or ground and polished by a grinder to improve the accuracy and surface roughness.

[0034] In this embodiment, during assembly, the upper connecting block 10 is docked on the lower connecting block 20, and the installation arc-shaped protruding strip 12 is stuck in the installation arc-shaped recessed groove 26, so that the waveguide arc-shaped recessed groove 21 is shielded by the installation arc-shaped protruding strip 12, so that the waveguide arc-shaped recessed groove 21 is changed from a groove body to a tubular shape to form a waveguide cavity, and then the upper connecting block 10 and the lower connecting block 20 are connected as a whole;

[0035] Of course, due to this open structure, the waveguide arc-shaped recessed groove 21 can be electroplated, laying the foundation for good electrical performance;

[0036] The above-mentioned split design can simplify the structural design and divide the entire waveguide cavity into two parts, replacing the traditional design method that requires multiple parts to be assembled, thereby reducing the design difficulty. A non-center parting design is adopted to retain the complete waveguide port structure, avoid the problem of misalignment of the waveguide port, and ensure the dimensional accuracy of the waveguide cavity. Moreover, the upper and lower parts can be formed separately by high-precision processing using CNC machine tools, which greatly reduces the manufacturing difficulty and improves the manufacturing accuracy and efficiency. At the same time, it can also reduce process steps such as welding and assembly, reduce the accumulated errors in the manufacturing process, and improve the consistency of product manufacturing.

[0037] Specifically, two groups of connecting flanges 30 are provided on the lower connecting block 20, and the connecting flanges 30 include an upper raised plate 31 and a lower raised plate 35. The two groups of upper raised plates 31 are respectively arranged at the two ends of the installation arc-shaped raised strip 12, and the two groups of lower raised plates 35 are respectively arranged at the two ends of the installation arc-shaped recessed groove 26.

[0038] In this embodiment, the connection flange 30 is provided to facilitate installation and fixation of the waveguide.

[0039] Specifically, the two groups of upper raised plates 31 are both provided with upper butt joint plates 32 , and the two groups of lower raised plates 35 are both provided with lower butt joint plates 33 .

[0040] In this case, a raised plate concave groove is provided on the lower raised plate 35, and the position of the raised plate concave groove matches the waveguide arc-shaped concave groove 21;

[0041] Of course, the upper docking plate 32 and the lower docking plate 33 are combined together to form a circle, which is convenient for docking processing.

[0042] Specifically, the installation arc-shaped recessed groove 26 is further provided with two groups of connecting arc-shaped recessed grooves 22, and the waveguide arc-shaped recessed groove 21 is provided between the two groups of connecting arc-shaped recessed grooves 22;

[0043] The connecting arc-shaped recessed groove 22 is provided with a plurality of groups of lower threaded holes 23, and the mounting arc-shaped raised strip 12 is provided with a plurality of groups of upper threaded holes 11, the upper threaded holes 11 penetrate the upper connecting block 10, the positions of the plurality of groups of lower threaded holes 23 match the positions of the plurality of groups of upper threaded holes 11, and bolts are provided between the upper threaded holes 11 and the lower threaded holes 23.

[0044] In this embodiment, after the upper connecting block 10 and the lower connecting block 20 are connected, the upper threaded hole 11 is connected with the lower threaded hole 23, and bolts are installed between the upper threaded hole 11 and the lower threaded hole 23, so that the upper connecting block 10 and the lower connecting block 20 are connected as a whole by the bolts.

[0045] Specifically, two groups of connection positioning pins 25 are provided on the connection arc-shaped recessed groove 22, and two groups of connection positioning holes 13 are provided on the installation arc-shaped raised strip 12. The connection positioning holes 13 do not penetrate the upper connection block 10, and the two groups of connection positioning holes 13 match the positions of the two groups of connection positioning pins 25.

[0046] In this embodiment, the upper connecting block 10 and the lower connecting block 20 can be precisely connected to each other through the cooperation of the connecting positioning pins 25 and the connecting positioning holes 13.

[0047] Specifically, ribs 24 are provided between the two groups of connecting arc-shaped recessed grooves 22 and the waveguide arc-shaped recessed grooves 21 .

[0048] In this embodiment, the rib 24 is in more precise contact with the upper connection block 10 to avoid signal leakage;

[0049] Of course, since the contact area of ​​the ribs 24 is small and the pressure generated is large, the rectangular waveguide cavity joints can be tightly combined without signal leakage. The small contact area of ​​the ribs 24 also avoids the phenomenon of loose fitting caused by errors such as flatness of the joint surface during processing, thereby improving the overall practicality.

[0050] Specifically, the connecting flange 30 is provided with two groups of connecting pins 34, and the two groups of connecting pins 34 are respectively provided on the upper raised plate 31 and the lower raised plate 35;

[0051] The connecting flange 30 is further provided with two groups of connecting pin holes 37 , and the two groups of connecting pin holes 37 are respectively provided on the upper raised plate 31 and the lower raised plate 35 .

[0052] In this embodiment, the connection pin 34 and the connection pin hole 37 can facilitate the overall connection process.

[0053] Specifically, four groups of docking holes 36 are further provided on the connecting flange 30 , one group of the docking holes 36 is provided on the upper raised plate 31 , and three groups of the docking holes 36 are provided on the lower raised plate 35 .

[0054] Specifically, the upper connecting block 10, the upper raised plate 31 and the upper docking plate 32 are an integrally formed structure;

[0055] The lower connecting block 20, the lower raised plate 35 and the lower docking plate 33 are an integrally formed structure.

[0056] In this embodiment, the upper connecting block 10, the upper raised plate 31 and the upper docking plate 32 are independently processed by a high-precision CNC machine tool, and the lower connecting block 20, the lower raised plate 35 and the lower docking plate 33 are independently processed by a high-precision CNC machine tool.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel split waveguide structure, characterized in that: It comprises an upper connecting block (10) and a lower connecting block (20), wherein the upper connecting block (10) and the lower connecting block (20) are stacked; The lower connecting block (20) is provided with a mounting arc-shaped recessed groove (26), and the upper connecting block (10) is provided with a mounting arc-shaped raised strip (12); the mounting arc-shaped raised strip (12) and the mounting arc-shaped recessed groove (26) match each other; a waveguide arc-shaped recessed groove (21) is provided in the mounting arc-shaped recessed groove (26); the waveguide arc-shaped recessed groove (21) is provided at a middle position of the mounting arc-shaped recessed groove (26), and the mounting arc-shaped raised strip (12) is placed in the mounting arc-shaped recessed groove (26), so that the waveguide arc-shaped recessed groove (21) forms a waveguide tube.

2. A split type novel waveguide structure according to claim 1, characterized in that: Two groups of connecting flanges (30) are arranged on the lower connecting block (20), and the connecting flanges (30) include an upper raised plate (31) and a lower raised plate (35). The two groups of upper raised plates (31) are respectively arranged at two ends of the mounting arc-shaped raised strip (12), and the two groups of lower raised plates (35) are respectively arranged at two ends of the mounting arc-shaped recessed groove (26).

3. A split type novel waveguide structure according to claim 2, characterized in that: The two groups of upper raised plates (31) are both provided with upper butt joint plates (32), and the two groups of lower raised plates (35) are both provided with lower butt joint plates (33).

4. The novel split waveguide structure according to claim 1, characterized in that: Two groups of connecting arc-shaped recessed grooves (22) are also provided in the installation arc-shaped recessed groove (26), and the waveguide arc-shaped recessed groove (21) is provided between the two groups of connecting arc-shaped recessed grooves (22); The connecting arc-shaped recessed groove (22) is provided with a plurality of groups of lower threaded holes (23), the mounting arc-shaped raised strip (12) is provided with a plurality of groups of upper threaded holes (11), the upper threaded holes (11) penetrate the upper connecting block (10), the plurality of groups of lower threaded holes (23) are matched with the plurality of groups of upper threaded holes (11) in position, and bolts are provided between the upper threaded holes (11) and the lower threaded holes (23).

5. The novel split waveguide structure according to claim 4, characterized in that: The connecting arc-shaped recessed groove (22) is provided with two groups of connecting positioning pins (25), and the mounting arc-shaped raised strip (12) is provided with two groups of connecting positioning holes (13), the connecting positioning holes (13) are not provided through the upper connecting block (10), and the positions of the two groups of connecting positioning holes (13) and the two groups of connecting positioning pins (25) match each other.

6. The novel split waveguide structure according to claim 5, characterized in that: Ribs (24) are provided between the two groups of connecting arc-shaped recessed grooves (22) and the waveguide arc-shaped recessed grooves (21).

7. The novel split waveguide structure according to claim 3, characterized in that: Two groups of connecting pins (34) are arranged on the connecting flange (30), and the two groups of connecting pins (34) are arranged on the upper raised plate (31) and the lower raised plate (35) respectively; The connecting flange (30) is also provided with two groups of connecting pin holes (37), and the two groups of connecting pin holes (37) are respectively provided on the upper raised plate (31) and the lower raised plate (35).

8. The novel split waveguide structure according to claim 7, characterized in that: The connecting flange (30) is also provided with four groups of docking holes (36), one group of the docking holes (36) is provided on the upper raised plate (31), and three groups of the docking holes (36) are provided on the lower raised plate (35).

9. The novel split waveguide structure according to claim 3, characterized in that: The upper connecting block (10), the upper raised plate (31) and the upper docking plate (32) are an integrally formed structure; The lower connecting block (20), the lower raised plate (35) and the lower docking plate (33) are an integrally formed structure.

Images