Mounting base with low electromagnetic wave scattering sectional area

Abstract

The invention discloses a mounting base with a low electromagnetic wave scattering sectional area, and belongs to the technical field of anti-electromagnetic wave detection. The mounting base comprises an upper cone flange, an upper cone pipe, a middle cone flange, a lower cone pipe group and a mounting base bottom plate which are sequentially and fixedly connected into a whole from top to bottom; the exposed appearances of the components are all cones, the upper taper pipe, the lower taper pipe set and the installation base bottom plate are in an inverted taper shape, the upper taper flange and the middle taper flange are in a positive taper shape, and after the components are combined, electromagnetic waves incident in a certain direction can be reflected to different directions. The electromagnetic wave scattering sectional area can be greatly reduced, compared with a conventional cylindrical mounting base, the RCS attenuation multiple of the mounting base can reach more than 100 times, the low electromagnetic wave scattering sectional area performance of a ship can be greatly improved, and the safety of the ship is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of anti-electromagnetic wave detection, and in particular to a mounting base with a low electromagnetic wave scattering cross-sectional area. Background Art

[0002] With the development of modern science and technology, there is an urgent need for low electromagnetic wave scattering cross-sectional area of ​​ship equipment. There are a large number of optoelectronic and electronic equipment arranged outside the ship cabin, and they all need to be equipped with mounting bases for installation. Most of the conventional mounting bases on ships are cylindrical rod-shaped bases with large electromagnetic wave scattering cross-sectional area (RCS) and do not have low electromagnetic wave reflection characteristics. With the development of electromagnetic wave detection technology, higher requirements are put forward for the low electromagnetic wave reflection characteristics of ships, and thus higher requirements are put forward for the low electromagnetic wave reflection characteristics of the mounting base of ship cabin equipment outside the ship cabin. The traditional ship equipment mounting base can no longer meet the requirements. Summary of the invention

[0003] In view of this, the present invention provides a mounting base with a low electromagnetic wave scattering cross-sectional area, which can greatly reduce the electromagnetic wave scattering cross-sectional area (RCS). Compared with a conventional cylindrical mounting base, the attenuation multiple of its RCS can reach more than 100 times, which can greatly improve the low electromagnetic wave scattering cross-sectional area performance of the ship and ensure the safety of the ship.

[0004] A mounting base with a low electromagnetic wave scattering cross-sectional area comprises an upper cone flange, an upper cone tube, an intermediate cone flange, a lower cone tube group and a mounting base bottom plate which are fixedly connected in sequence from top to bottom into one body; the exposed shapes of the above components are all cones, wherein the upper cone tube, the lower cone tube group and the mounting base bottom plate are inverted cones, and the upper cone flange and the intermediate cone flange are right cones, and the above components can reflect electromagnetic waves incident from a certain direction to different directions after being combined; a cable plug-in port is provided on the surface of the lower cone tube group, and the cable plug-in port is closed by a cable plug-in port cover plate which is conformal to the surface of the lower cone tube group; a mechanical interface for installing ship's off-board equipment is provided on the upper end face of the upper cone flange, and an interface for connecting with the ship's deck is provided on the mounting base bottom plate.

[0005] Furthermore, the upper cone flange, the upper cone tube, the middle cone flange, the lower cone tube assembly, the mounting base bottom plate and the cable plug-in port cover plate are connected as one body by welding or screws.

[0006] Furthermore, the exposed portion of the upper cone flange has a shape of a right circular cone, and a cone angle of ≥120°.

[0007] Furthermore, the exposed portion of the upper cone tube has an outer shape of an inverted cone, and the cone angle is ≥24°.

[0008] Furthermore, the exposed portion of the intermediate cone flange has a shape of a right circular cone, with a cone angle of ≥120°, which is different from the cone angle of the upper cone flange.

[0009] Furthermore, the lower cone tube group is composed of a lower cone tube and an upper connecting flange, which are welded together; the exposed part of the lower cone tube has an inverted cone shape, and the cone angle is ≥24°, which is better if it is different from the cone angle of the upper cone tube; a cable plug-in port is arranged on the lower cone tube, which is connected to the cable plug-in port cover plate by screws; the upper connecting flange has an interface connected to the middle cone flange by screws; the lower cone tube group and the middle cone flange are connected up and down by screws.

[0010] Furthermore, the exposed part of the mounting base bottom plate has an inverted cone shape with a cone angle of ≥24°, the mounting base bottom plate and the lower cone tube group are connected up and down by welding, and the mounting base bottom plate is provided with an interface connected to the ship deck.

[0011] Beneficial effects:

[0012] 1. The present invention adopts an upper cone flange, an upper cone tube, an intermediate cone flange, a lower cone tube group and a mounting base bottom plate which are fixedly connected in sequence from top to bottom to form a mounting base, so that the outer shape of the mounting base is all a conical surface, which can reflect electromagnetic waves incident from a certain direction to different directions. After simulation, compared with a conventional cylindrical mounting base, its RCS attenuation multiple can reach more than 100 times, which can greatly improve the low electromagnetic wave scattering cross-sectional area performance of the ship and ensure the safety of the ship.

[0013] 2. The present invention adopts two inverted cone-shaped upper cone tubes and lower cone tubes to form the main structure of the mounting base. The split-structure mounting base can reduce the electromagnetic wave scattering cross-sectional area at the same angle, and effectively increase the installation height of the equipment. Compared with processing into an integral cone structure, it can reduce the processing difficulty and manufacturing cost of the main structure.

[0014] 3. The present invention reasonably selects the cone angles of the exposed parts of the upper cone flange, the upper cone tube, the middle cone flange, the lower cone tube group and the mounting base bottom plate, wherein the cone angle of the upper cone flange is ≥120°, the cone angle of the upper cone tube is ≥24°, the cone angle of the middle cone flange is ≥120°, the cone angle of the lower cone tube group is ≥24° and the cone angle of the mounting base bottom plate is ≥24°. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the electromagnetic wave scattering principle diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the components of the mounting base of the present invention;

[0017] Figure 3 It is a schematic diagram of the upper cone flange structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the upper cone tube of the present invention;

[0019] Figure 5It is a schematic diagram of the structure of the intermediate cone flange of the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the lower cone tube group of the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the mounting base bottom plate of the present invention;

[0022] Figure 8 It is a structural schematic diagram of the cable plug-in port cover plate of the present invention.

[0023] Among them: 1-upper cone flange; 2-upper cone tube; 3-middle cone flange; 4-lower cone tube group; 5-mounting base plate, 6-cable plug-in port cover. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0025] As attached Figure 2 As shown in the figure, the present invention provides a mounting base with low electromagnetic wave scattering cross-sectional area, including an upper cone flange 1, an upper cone tube 2, an intermediate cone flange 3, a lower cone tube group 4, a mounting base bottom plate 5, and a cable plug-in port cover plate 6. The exposed shapes of the first 5 parts are all cones, which are assembled into one from top to bottom by welding or screw connection. The exposed sides of each component are all curved surfaces, which can reflect electromagnetic waves incident in a certain direction to different directions, thereby greatly reducing the electromagnetic wave scattering cross-sectional area (RCS). Figure 1 The upper end surface of the upper cone flange 1 has a mechanical interface for installing the ship's external equipment, and the mounting base bottom plate 5 has an interface for connecting with the ship's deck.

[0026] In the preferred embodiment, as shown in the attached Figure 3 As shown, the upper end surface of the upper cone flange 1 has a mechanical interface for installing ship outboard equipment, and the exposed part thereof has a right circular cone shape with a cone angle of ≥120°.

[0027] In the preferred embodiment, as shown in the attached Figure 4 As shown, the exposed part of the upper cone tube 2 is in the shape of an inverted cone, and the cone angle is ≥24°. The upper cone tube 2 is connected to the upper cone flange 1 by welding.

[0028] In the preferred embodiment, as shown in the attached Figure 5 As shown, the exposed portion of the middle cone flange 3 is in the shape of a right circular cone, with a cone angle of ≥120°, which is preferably different from the cone angle of the upper cone flange 1. The middle cone flange 3 is connected to the upper cone tube 2 by welding.

[0029] In the preferred embodiment, as shown in the attached Figure 6As shown, the lower cone tube group 4 is composed of a lower cone tube 401 and an upper connecting flange 402, which are welded together. The exposed part of the lower cone tube 401 has an inverted cone shape, and the cone angle is ≥24°, which is preferably different from the cone angle of the upper cone tube 1. A cable plug-in port 40101 is arranged on the lower cone tube 401, which is connected to the cable plug-in port cover plate 6 by screws. The structure of the cable plug-in port cover plate 6 is shown in the attached figure. Figure 8 As shown, the upper connection flange 402 has an interface connected to the middle cone flange 3 by screws. The lower cone pipe group 4 is connected to the middle cone flange 3 by screws.

[0030] In the preferred embodiment, as shown in the attached Figure 7 As shown, the exposed part of the mounting base bottom plate 5 is in the shape of an inverted cone, and the cone angle is ≥24°. The mounting base bottom plate 5 is connected to the lower cone tube group 4 by welding. The mounting base bottom plate 5 is provided with an interface connected to the ship deck (carrier).

[0031] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mounting base with a low electromagnetic wave scattering cross-sectional area, characterized in that: It comprises an upper cone flange, an upper cone tube, an intermediate cone flange, a lower cone tube group and a mounting base bottom plate which are fixedly connected in sequence from top to bottom; the exposed shapes of the above components are all cones, among which the upper cone tube, the lower cone tube group and the mounting base bottom plate are inverted cones, and the upper cone flange and the intermediate cone flange are right cones. After the above components are combined, they can reflect electromagnetic waves incident from a certain direction to different directions; a cable plug-in port is provided on the surface of the lower cone tube group, and the cable plug-in port is closed by a cable plug-in port cover plate which is conformal to the surface of the lower cone tube group; a mechanical interface for installing ship's off-board equipment is provided on the upper end face of the upper cone flange, and an interface for connecting with the ship's deck is provided on the mounting base bottom plate.

2. The mounting base with low electromagnetic wave scattering cross-sectional area according to claim 1, characterized in that: The exposed portion of the upper cone flange has a right cone shape with a cone angle of ≥120°.

3. The mounting base with low electromagnetic wave scattering cross-sectional area according to claim 1, characterized in that: The exposed portion of the upper cone tube has an inverted cone shape, and the cone angle is ≥24°.

4. The mounting base with low electromagnetic wave scattering cross-sectional area according to claim 1, characterized in that: The exposed portion of the intermediate cone flange has a right cone shape with a cone angle of ≥120°, which is different from the cone angle of the upper cone flange.

5. The mounting base with low electromagnetic wave scattering cross-sectional area according to claim 3 or 4, characterized in that: The lower cone tube group is composed of a lower cone tube and an upper connecting flange, which are welded together; the exposed part of the lower cone tube has an inverted cone shape, and the cone angle is ≥24°; a cable plug-in port is arranged on the lower cone tube, which is connected to the cable plug-in port cover plate by screws; the upper connecting flange has an interface connected to the middle cone flange by screws; the lower cone tube group and the middle cone flange are connected up and down by screws.

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