Polygonal unit piece structure of radar radome

Abstract

The utility model relates to a polygonal unit piece structure of a radar radome. The polygonal unit piece structure comprises a polygonal foam interlayer unit piece body and joint edges on the periphery of the polygonal foam interlayer unit piece body, a polygonal foam interlayer unit piece body is of a foam interlayer structure, an inner layer and an outer layer are glass fiber composite board skins, a core layer between the inner layer and the outer layer of the glass fiber composite board skins is polygonal foam, and the inner layer and the outer layer of the glass fiber composite board skins extend to joint edges. A glass fiber reinforced plastic reinforcing plate is arranged between the inner-layer glass fiber composite plate skin and the outer-layer glass fiber composite plate skin at the joint edge, and a mounting position is reserved on the joint edge. According to the utility model, the base material is the flame-retardant resin, so that the radar radome adopting the structure has fewer parallel edges and joint splicing seams, and has good wave-transparent performance. The utility model has the advantages of simple structural form, low manufacturing difficulty and convenience in processing, manufacturing and mounting, and is suitable for various large-scale radar radomes.

Description

Technical Field

[0001] The utility model relates to a polygonal unit element structure, in particular to a polygonal unit element structure which has the advantages of simple structure, low manufacturing difficulty, convenient processing, manufacturing and installation, and is suitable for various large-scale radar antenna covers. Background Art

[0002] Radome is an electromagnetic window that protects radar antenna from the influence of natural environment. It can obtain the required electrical performance while maintaining the structure and bearing loads such as ice, snow and wind, thus improving the working environment and accuracy of the antenna. With the continuous development of modern science and technology, the application field of radome is constantly expanding, and the performance requirements for radome are getting higher and higher.

[0003] Large radar antenna covers have a large area, and there are many difficulties in the production, transportation and installation processes. The traditional large radar antenna cover unit component block design method has problems such as parallel edges and many seams, which cannot meet the performance requirements of high-performance radar antenna covers. Utility Model Content

[0004] In view of the above problems, the main purpose of the utility model is to provide a polygonal unit element structure which has a simple structure, low manufacturing difficulty, is easy to process, manufacture and install, and is suitable for various large radar antenna covers.

[0005] The utility model solves the above-mentioned technical problems through the following technical solutions: a polygonal unit element structure of a radar antenna cover, the polygonal unit element structure of the radar antenna cover comprising: a polygonal foam sandwich unit element body and a joint edge around the polygonal foam sandwich unit element body; the polygonal foam sandwich unit element body is a foam sandwich structure, both inner and outer layers are glass fiber composite board skins, the core layer between the inner and outer glass fiber composite board skins is polygonal foam, the inner and outer glass fiber composite board skins extend to the joint edge, and a fiberglass reinforcement plate is provided between the inner and outer glass fiber composite board skins at the joint edge, and an installation position is reserved on the joint edge.

[0006] In a specific implementation example of the utility model, a mounting hole is provided at the mounting position, and the connected polygonal unit structures are connected by tightening bolts and nuts.

[0007] In a specific implementation example of the utility model, a silicone rubber sealing strip for sealing is arranged between the upper and lower joint edges of the connected polygonal unit element structures, and a sealing silicone rubber head is arranged at the intersection.

[0008] In a specific implementation example of the utility model, the silicone rubber head is provided with a wedge-shaped bayonet, and the wedge-shaped bayonet is clamped between the joint edges of the connected polygonal unit element structures.

[0009] In the specific implementation example of the present utility model, the thickness range of the polygonal foam is: 15-48mm

[0010] In a specific implementation example of the utility model, the thickness of the glass fiber composite board skin ranges from 0.5 to 1.5 mm.

[0011] In a specific implementation example of the present invention, the thickness of the joint edge ranges from 6 to 10 mm.

[0012] In a specific implementation example of the present utility model, the thickness of the silicone rubber sealing strip ranges from 2 to 4 mm.

[0013] In a specific implementation example of the present utility model, the polygonal unit element structure of a single radar antenna cover is a hexagon with an area ranging from 4 to 7 square meters.

[0014] In a specific implementation example of the utility model, the glass fiber composite board skin and the polygonal foam are bonded and fixed with a flame retardant unsaturated polyester resin.

[0015] The positive progressive effect of the utility model is that the polygonal unit element structure of the radome provided by the utility model has fewer parallel edges and joint seams, has good electrical performance and structural strength, and has a simple structure. The base material of the utility model is a flame-retardant resin. The polygonal foam sandwich unit element of the radome of this structure can meet the flame-retardant requirements of the use environment. The radome using this structure has fewer parallel edges and joint seams and has good wave transmission performance. The utility model has a simple structure, low manufacturing difficulty, and is easy to process, manufacture and install. It is suitable for various large radomes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the polygonal foam sandwich unit structure of the radar antenna cover.

[0017] Figure 2 It is a schematic diagram of the cross-section of the polygonal foam sandwich unit structure of the radar antenna cover.

[0018] Figure 3 Schematic diagram of the connection between adjacent radar antenna covers' polygonal foam sandwich unit components.

[0019] Figure 4 for Figure 3 A partial enlarged view of . DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.

[0021] Figure 1This is a schematic diagram of the polygonal foam sandwich unit structure of the radar antenna cover. Figure 2 This is a schematic diagram of the cross-section of the polygonal foam sandwich unit structure of the radar antenna cover. Figure 3 The figure is a schematic diagram of the connection between the polygonal foam sandwich unit components of adjacent radar antenna covers. Figure 1-3 As shown: the polygonal unit element structure of a radar antenna cover proposed by the utility model comprises a polygonal foam sandwich unit element body 1 and a joint edge 2 around the polygonal foam sandwich unit element body; the polygonal foam sandwich unit element body 1 is a foam sandwich structure, and both the inner and outer layers are glass fiber composite board skins 101, and the core layer between the inner and outer glass fiber composite board skins 101 is a polygonal foam 102, and the inner and outer glass fiber composite board skins 101 extend to the joint edge 2, and a glass fiber reinforced plastic reinforcement plate 202 is provided between the inner and outer glass fiber composite board skins 101 at the position of the joint edge 2, and an installation position is reserved on the joint edge 2. In a specific implementation, a mounting hole is provided at the installation position of the utility model, and the connected polygonal unit element structures are fixed together by tightening bolts 4 and nuts 3.

[0022] A sealing silicone rubber sealing strip 5 is provided between the upper and lower joint edges 2 of the connected polygonal unit structure, and a sealing silicone rubber head 6 is provided at the intersection. The silicone rubber head 6 is provided with a wedge-shaped bayonet (see Figure 4 ), the wedge-shaped bayonet is clamped between the joint edges 2 of the adjacent polygonal unit structure.

[0023] The glass fiber composite panel skin 101 and the polygonal foam 102 are bonded and fixed by flame retardant unsaturated polyester resin, and other bonding methods may also be used.

[0024] In the specific implementation process, the thickness range of the polygonal foam 102 in the utility model is: 15-48mm, the thickness range of the glass fiber composite board skin 101 is: 0.5-1.5mm, the thickness range of the joint edge 2 is: 6-10mm, the thickness range of the silicone rubber sealing strip 5 is: 2-4mm, and the polygonal unit element structure of a single radar antenna cover is a hexagon with an area range of 4-7㎡. In the specific implementation process, the above parameters can be set to other values ​​or other parameters according to requirements.

[0025] In a specific implementation example of the utility model, the polygonal foam sandwich unit body 1 of the radar antenna cover and the polygonal foam 201 arranged between the two layers of glass fiber composite board skin 101 can be one or more of polyurethane foam, polyethylene foam and polyimide foam.

[0026] The base material of the utility model is a flame-retardant resin. The polygonal foam sandwich unit element of the radar antenna cover of this structure can meet the flame-retardant requirements of the use environment. The radar antenna cover using this structure has fewer parallel edges and joint seams and has good wave transmission performance. The utility model has a simple structure, low manufacturing difficulty, convenient processing, manufacturing and installation, and is suitable for various large radar antenna covers.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A polygonal unit element structure of a radar antenna cover, characterized in that: The polygonal unit element structure of the radar antenna cover includes: a polygonal foam sandwich unit element body and a joint edge around the polygonal foam sandwich unit element body; the polygonal foam sandwich unit element body is a foam sandwich structure, and both the inner and outer layers are glass fiber composite board skins, and the core layer between the inner and outer glass fiber composite board skins is polygonal foam, and the inner and outer glass fiber composite board skins extend to the joint edge, and a glass fiber reinforced plastic reinforcement plate is provided between the inner and outer glass fiber composite board skins at the joint edge position, and an installation position is reserved on the joint edge; The thickness range of polygonal foam is: 15-48mm.

2. The polygonal unit element structure of the radar antenna cover according to claim 1, characterized in that: The installation position is provided with installation holes, and the connected polygonal unit structures are connected by tightening bolts and nuts.

3. The polygonal unit element structure of the radar antenna cover according to claim 1, characterized in that: Silicon rubber sealing strips for sealing are arranged between the upper and lower joint edges of the connected polygonal unit element structures, and a sealing silicone rubber head is arranged at the intersection.

4. The polygonal unit element structure of the radar antenna cover according to claim 3, characterized in that: The silicone rubber head is provided with a wedge-shaped bayonet, and the wedge-shaped bayonet is clamped between the joint edges of the connected polygonal unit element structures.

5. The polygonal unit element structure of the radar antenna cover according to claim 1, characterized in that: The thickness range of glass fiber composite panel skin is: 0.5-1.5mm.

6. The polygonal unit element structure of the radar antenna cover according to claim 1, characterized in that: The thickness range of the joint edge is: 6-10mm.

7. The polygonal unit element structure of the radar antenna cover according to claim 3, characterized in that: The thickness range of silicone rubber sealing strip is: 2-4mm.

8. The polygonal unit element structure of the radar antenna cover according to claim 1, characterized in that: The polygonal unit element structure of a single radar antenna cover is a hexagon with an area ranging from 4-7㎡.

9. The polygonal unit element structure of the radar antenna cover according to claim 1, characterized in that: The glass fiber composite board skin and the polygonal foam are bonded and fixed by flame retardant unsaturated polyester resin.

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