RU181753U1 - WAVEGUIDE FLANGE JOINT - Google Patents

Abstract

The utility model relates to the field of radio engineering, namely to waveguide technology, and can be used to connect waveguides with angular rotations in the design of waveguide paths and other waveguide devices placed in equipment with a limited volume. The technical result consists in reducing the weight and dimensions of the flanges of the waveguide connection, ensuring the placement of the waveguide flange connection in equipment with a limited volume. The achievement of the technical result is provided by a change in the design of the nearest analogue. Unlike the prototype, each of the flanges has through grooves associated with its rear end surface. One of the waveguides is made with two angular bends, forming the upper, intermediate and lower parts. In this case, the waveguide is rigidly fixed by soldering in the central window of the flange interacting with it by means of the lower part and on the lower surface of the intermediate part in contact with the bevel surface, made along the contour of one of the wide side surfaces of the central window from the side of the upper surface of the flange, on which the understatements made with its lateral and rear end surfaces turning into grooves. 6 ill.

Description

The utility model relates to the field of radio engineering, namely to waveguide technology, and can be used to connect waveguides with angular rotations in the design of waveguide paths and other waveguide devices placed in equipment with a limited volume.

Known waveguide flange device (AM Chernushenko, N.E. Melanchenko, L.G. Maloratsky, B.V. Petrov "Design of microwave devices and screens" Textbook for universities, M .: Radio and communications, 1983, p. 103, Fig. 6.27), containing a waveguide with a radial bend in the plane of the electric field (bend in the E plane) with waveguide flanges, on the end surfaces of which there are annular grooves for gaskets.

The disadvantages of this device are the need to ensure the constancy of the geometric dimensions of the internal section of the waveguide and high purity of the current-carrying surfaces along the entire length of the bend to reduce the irregularity introduced by the radius bend, which affects the reflection and attenuation of waves; the availability of special equipment for bending the waveguide and its control; significant weight and dimensions of the waveguide nodes due to radius bending.

The closest in technical essence and the achieved results to the proposed technical solution is a waveguide flange connection (RU patent for utility model No. 166421, IPC: Н01Р 1/04, 2016), containing two connected waveguides with flanges, each of the flanges has a central window configured to fix a waveguide therein. At the same time, at least one of the waveguides is made with a rectangular angular bend, and one part is placed and fixed in the central window of the flange interacting with it, and the other, perpendicular to the part of the waveguide, is placed and fixed in the groove made in the outer end surface this flange and paired with one of its side faces. The central window of the flange interacting with the waveguide is made extending into the groove.

The technical problem solved by the creation of a utility model is the significant weight and dimensions of the flanges of the waveguide connection, excluding the placement of the waveguide flange connection in equipment with a limited volume.

The technical result, which is achieved by the claimed utility model, is to reduce the overall dimensions of the flanges of the waveguide connection, ensuring the placement of the waveguide flange connection in equipment with a limited volume.

The achievement of the technical result is provided by a change in the design of the nearest analogue. Unlike the prototype, each of the flanges has through grooves associated with its rear end surface. One of the waveguides is made with two angular bends, forming the upper, intermediate and lower parts. In this case, the waveguide is rigidly fixed by soldering in the central window of the flange interacting with it by means of the lower part and on the lower surface of the intermediate part in contact with the bevel surface, made along the contour of one of the wide side surfaces of the central window from the side of the upper surface of the flange, on which the understatements made with its lateral and rear end surfaces turning into grooves.

The essence of the inventive waveguide flange connection is illustrated by drawings, where

FIG. 1 is a general view of a waveguide flange connection;

FIG. 2 - waveguide with two angular bends;

Figure 3 - General view of the flange with a central window, through holes, understatements, passing into the through grooves (enlarged);

FIG. 4 - flange from the side of the contacting surface;

FIG. 5 - waveguide with two angular bends, placed in the Central window of the interacting flange in the section (enlarged);

FIG. 6 - waveguide flange connection from above.

The waveguide flange connection contains two connected waveguides 1, 2 (Fig. 1) with flanges 3, 4 (Fig. 1), two sealing gaskets 5 (Fig. 1), a contact gasket 6 (Fig. 1), located between the contact surfaces of the flanges 3, 4, as well as fasteners 7 (Fig. 1, 6) in the form of bolts with nuts for tightening and fixing the flanges 3, 4.

At least one of the waveguides (Fig. 2), for example waveguide 1, is made with two angular bends (for example, with bends along a wide wall in the plane of the electric field, E - bends), forming the upper 8 (Fig. 2, 6) , intermediate 9 (Fig. 2) and lower 10 (Fig. 2) parts. The value of each angular bend is greater than 90 °. Moreover, from the side of the upper surface 11 (Fig. 2) of the intermediate 9 part of the waveguide 1, a slice is made, which is closed by a scarf 12 (Fig. 1, 5, 6).

Each of flanges 3, 4 has

- the Central window 13 (Fig. 3, 4) of a rectangular shape, configured to fix the waveguide 1, 2, respectively;

- an annular groove 14 (Fig. 4, 5) of a rectangular shape in plan (Fig. 5), made from the side of the contacting surface;

- through holes 15 (Fig. 3, 4);

- through grooves 16 (Fig. 3, 4), made of a U-shape, mated to the rear end surface.

At the same time, at least one of the flanges, for example flange 3, additionally from the side of its upper surface 17 (Fig. 3) is made with understatements 18 (Fig. 3) of an L-shaped configuration in plan (Fig. 1), paired with lateral and rear end surfaces that pass into the through grooves 16, and its central window 13 is made with bevel 19 (Fig. 3) along the contour of one of the wide side surfaces. The angle of the bevel 19 of the Central window 13 of the flange 3 is proportional to the angle of the angular bend between the lower 10 and intermediate 9 parts of the waveguide 1.

The waveguide 1 is rigidly fixed, for example by soldering, in the central window 13 of the flange 3 (Fig. 5) by means of a stepped protrusion 20 (Fig. 2) of the lower part 10, and is also rigidly fixed, for example, by soldering, on the lower surface 21 (Fig. 5) intermediate 9 part in contact with the surface of the bevel 19 of the Central window 13.

Assembly of the waveguide flange connection is as follows.

The waveguide 1 is fixed in the central window 13 of the flange 3 by means of a stepped protrusion 20 of the lower 10 part (Fig. 5) by soldering and is additionally fixed by soldering on the lower surface 21 of the intermediate 9 part in contact with the bevel surface 19 of the central window 13.

The waveguide 2 is fixed in the central window 13 of the flange 4 by soldering.

The gaskets 5 are placed in the annular grooves 14 of the flanges 3, 4.

Place the contact strip 6 between the contact surfaces of the flanges 3, 4 of the waveguides 1, 2.

Docking and fixing the flanges 3, 4 of the waveguides 1, 2, tightening them with fasteners 7 in the through holes 15 and through the grooves 16 of the flanges 3, 4.

Thus, the proposed design of the waveguide flange connection allows the joining of rectangular waveguides with two angular bends that are made along a wide wall (bends along a wide wall in the plane of the electric field E - bends), while making flanges with through grooves for fasteners, and one of flanges with understatements that go into through grooves, allows to reduce the weight and dimensions of waveguide paths to ensure their placement in equipment with a limited volume ohm In this case, the optimal dimensions of the angular bends for rectangular waveguides are selected in accordance with existing standards.

Claims (2)

1. A waveguide flange connection containing two connectable waveguides with flanges, a contact gasket located between the contact surfaces of the flanges, each of the flanges has through holes, as well as a central window configured to fix the waveguide in it, one of the waveguides is made with angular bending, in this case, one part of it is placed and fixed in the central window of the flange interacting with it, characterized in that each of the flanges has through grooves mating with its rear end surface and one of the waveguides is made with two angular bends forming the upper, intermediate and lower parts, while the waveguide is rigidly fixed by soldering in the central window of the flange interacting with it through the lower part and along the lower surface of the intermediate part in contact with the surface of the bevel made along the contour one of the wide side surfaces of the central window from the side of the upper surface of the flange, on which understatements are made, conjugated with its side and rear end surfaces, passing into grooves. 2. The waveguide flange connection according to claim 1, characterized in that the through grooves of the flanges are made in a U-shape in plan.

Images