Wave-absorbing surrounding edge with mortise and tenon structure
By designing a mortise and tenon structure for the absorbing edge on the low-scattering bracket, the RCS performance in the low-frequency band was optimized, solving the problem that the low-scattering bracket is difficult to reduce the level when scattering in the low-frequency band, and realizing the testing of stealth targets that are easy to manufacture and maintain.
Patent Information
- Application Number
- CN202422357002.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The low-scattering bracket has difficulty reducing the scattering level in the low-frequency band, which cannot meet the testing requirements of stealth targets.
The wave-absorbing edge adopts a mortise and tenon structure, which is an inclined ring column structure. The components are connected by the mortise and tenon structure to optimize the low-frequency RCS performance of the low-scattering bracket.
It effectively reduces coupling scattering between the support and the target, meeting the testing requirements of stealth targets, while being easy to process, transport, install and maintain, reducing costs and improving reliability.
Smart Images
Figure CN223527407U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electromagnetic structure, concretely relates to a wave absorbing surrounding edge with mortise and tenon structure. BACKGROUND
[0002] The low-scattering support is an electronic measuring instrument used in the field of electronics and communication technology, and is used for supporting a measured target, and the radar scattering area RCS (Radar Cross Section, RCS for short) of the support itself is very small. However, the low-scattering support has a problem that the level of low-frequency scattering is difficult to reduce, so that the test requirement of a low-frequency stealth target cannot be met. SUMMARY
[0003] To solve the problems in the background art, the utility model provides a wave absorbing surrounding edge with mortise and tenon structure to solve the problem that the level of low-frequency scattering of the low-scattering support is difficult to reduce.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] The wave absorbing surrounding edge with mortise and tenon structure is an inclined ring column structure, the bottom surface and the top surface of the ring column structure are both shuttle-shaped rings, the height, the inclination angle and the inclination direction of the wave absorbing surrounding edge and the low-scattering support are all the same, the low-scattering support is arranged in the inner ring of the wave absorbing surrounding edge, the wave absorbing surrounding edge is divided into a left surrounding edge and a right surrounding edge which are attached to each other along the diagonal line of the shuttle-shaped ring, the left surrounding edge is divided into a first left assembly and a second left assembly along the plane in which the perpendicular line from the inflection point of the curved surface of the left surrounding edge to the diagonal line of the shuttle-shaped ring is located, the first left assembly and the second left assembly are connected through a mortise and tenon structure, the right surrounding edge is divided into a first right assembly and a second right assembly along the plane in which the perpendicular line from the inflection point of the curved surface of the right surrounding edge to the diagonal line of the shuttle-shaped ring is located, and the first right assembly and the second right assembly are connected through a mortise and tenon structure.
[0006] Preferably, the first left assembly is stacked by a plurality of first sub-assemblies and a first flat assembly, two male tenons are arranged on each first sub-assembly, the height of the first flat assembly is one half of the height of the first sub-assembly, and one male tenon is arranged on the first flat assembly;
[0007] The second left assembly is stacked by a plurality of second sub-assemblies and a second flat assembly, two female tenons are arranged on each second sub-assembly, the height of the second flat assembly is one half of the height of the second sub-assembly, one female tenon is arranged on the second flat assembly, and the height of the second sub-assembly is the same as the height of the first sub-assembly;
[0008] The two male tenons of a first subassembly are matched with two female tenons not in the same second subassembly respectively, the two female tenons of a second subassembly are matched with two male tenons not in the same first subassembly respectively, the male tenon of the first flat assembly is matched with the female tenon above the topmost second subassembly or matched with the female tenon below the bottommost second subassembly, and the female tenon of the second flat assembly is matched with the male tenon above the topmost first subassembly or matched with the male tenon below the bottommost first subassembly.
[0009] Preferably, the first right assembly is stacked by a plurality of third subassemblies and a third flat assembly, the third subassemblies are each provided with two male tenons, the height of the third flat assembly is half of the height of the third subassembly, and the third flat assembly is provided with one male tenon.
[0010] The second right assembly is stacked by a plurality of fourth subassemblies and a fourth flat assembly, the fourth subassemblies are each provided with two female tenons, the height of the fourth flat assembly is half of the height of the fourth subassembly, the fourth flat assembly is provided with one female tenon, and the height of the fourth subassembly is the same as the height of the third subassembly.
[0011] The two male tenons of a third subassembly are matched with two female tenons not in the same fourth subassembly respectively, the two female tenons of a fourth subassembly are matched with two male tenons not in the same third subassembly respectively, the male tenon of the third flat assembly is matched with the female tenon above the topmost fourth subassembly or matched with the female tenon below the bottommost fourth subassembly, and the female tenon of the fourth flat assembly is matched with the male tenon above the topmost third subassembly or matched with the male tenon below the bottommost third subassembly.
[0012] Preferably, the mortise and tenon structures are chamfered.
[0013] Compared with the prior art, the application has the beneficial effects that:
[0014] 1. The wave-absorbing surrounding edge with a shuttle-shaped low-scattering outer contour can effectively optimize the RCS performance of the low-scattering support at low frequency, reduce the coupling scattering between the support and the target, and meet the testing requirements of more stealth targets.
[0015] 2. The wave-absorbing surrounding edge structure is segmented, easy to process, transport, install, disassemble and maintain, and has relatively low cost, without affecting the mechanical properties of the low-scattering support itself.
[0016] 3. The mortise and tenon structure can maximize the use of glue and effectively fix the structure, optimize the electromagnetic performance relative to the gluing method, and increase the reliability relative to the direct stacking method. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a specific structural schematic diagram of the present application;
[0018] Figure 2 is a structural schematic diagram of the left surrounding edge;
[0019] Figure 3 is a structural schematic diagram of the right surrounding edge;
[0020] indicated in the figure:
[0021] 1 - first subassembly; 2 - second subassembly; 3 - fourth subassembly; 4 - third subassembly; 5 - first flattening assembly; 6 - second flattening assembly; 7 - third flattening assembly; 8 - fourth flattening assembly. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] Embodiment 1
[0024] As shown in Figure 1 , Figure 2 and Figure 3 , a wave-absorbing surrounding edge with a mortise and tenon structure, the wave-absorbing surrounding edge is an inclined ring column structure, the bottom surface and the top surface of the ring column structure are both shuttle-shaped rings, the height, the inclination angle and the inclination direction of the wave-absorbing surrounding edge and the low scattering support are all the same, the front inclination angle is 57.3°, the internal wedge angle is 30.7°, the low scattering support is arranged in the inner ring of the wave-absorbing surrounding edge, the wave-absorbing surrounding edge is divided into a left surrounding edge and a right surrounding edge which are mutually attached along the diagonal line of the shuttle-shaped ring, the left surrounding edge is divided into a first left assembly and a second left assembly along the plane where the perpendicular line of the diagonal line of the shuttle-shaped ring and the inflection point of the surface of the left surrounding edge are located, the first left assembly and the second left assembly are connected through a mortise and tenon structure, the right surrounding edge is divided into a first right assembly and a second right assembly along the plane where the perpendicular line of the diagonal line of the shuttle-shaped ring and the inflection point of the surface of the right surrounding edge are located, and the first right assembly and the second right assembly are connected through a mortise and tenon structure.
[0025] In the embodiment, the application can effectively optimize the RCS performance of the low-scattering support at low frequency by the wave-absorbing surrounding edge with a shuttle-shaped low-scattering outer contour, reduce the coupling scattering between the support and the target, and meet the testing needs of more stealth targets. The wave-absorbing surrounding edge structure is segmented, which is easy to process, transport, install, disassemble and maintain, and has relatively low cost and will not affect the mechanical properties of the low-scattering support itself. The mortise and tenon structure can minimize the use of glue and effectively fix the structure, optimize the electromagnetic performance relative to the gluing method, and increase the reliability relative to the direct stacking method.
[0026] Embodiment 2
[0027] The difference between the embodiment and the embodiment 1 is that, as shown in the figure, the first left assembly is stacked by a plurality of first sub-assemblies 1 and a first flat assembly 5, the first sub-assembly 1 is provided with two male tenons, the height of the first flat assembly 5 is one half of the height of the first sub-assembly 1, and the first flat assembly 5 is provided with one male tenon. Figure 2
[0028] The second left assembly is stacked by a plurality of second sub-assemblies 2 and a second flat assembly 6, the second sub-assembly 2 is provided with two female tenons, the height of the second flat assembly 6 is one half of the height of the second sub-assembly 2, the second flat assembly 6 is provided with one female tenon, and the height of the second sub-assembly 2 is the same as the height of the first sub-assembly 1.
[0029] The two male tenons of one first sub-assembly 1 are matched with the two female tenons of different second sub-assemblies 2, the two female tenons of one second sub-assembly 2 are matched with the two male tenons of different first sub-assemblies 1, the male tenon of the first flat assembly 5 is matched with the female tenon of the uppermost second sub-assembly 2 or the female tenon of the lowermost second sub-assembly 2, and the female tenon of the second flat assembly 6 is matched with the male tenon of the uppermost first sub-assembly 1 or the male tenon of the lowermost first sub-assembly 1.
[0030] In the embodiment, the application adopts an alternating mortise and tenon connection structure, which can realize the close connection of the first left assembly and the second left assembly, and make the stacking structure of the first sub-assembly 1 and the stacking structure of the second sub-assembly 2 more close and stable.
[0031] Embodiment 3
[0032] The difference between the embodiment and the embodiment 1 is that, as shown in the figure, the first right assembly is stacked by a plurality of third sub-assemblies 4 and a third flat assembly 7, the third sub-assembly 4 is provided with two male tenons, the height of the third flat assembly 7 is one half of the height of the third sub-assembly 4, and the third flat assembly 7 is provided with one male tenon. Figure 3
[0033] The second right assembly is stacked by a plurality of fourth sub-assemblies 3 and a fourth flat assembly 8, the fourth sub-assembly 3 is provided with two mortises, the height of the fourth flat assembly 8 is half of the height of the fourth sub-assembly 3, the fourth flat assembly 8 is provided with one mortise, the height of the fourth sub-assembly 3 is same as the height of the third sub-assembly 4;
[0034] The two tenons of one third sub-assembly 4 are matched with two mortises of different fourth sub-assemblies 3 respectively, the two mortises of one fourth sub-assembly 3 are matched with two tenons of different third sub-assemblies 4 respectively, the tenon of the third flat assembly 7 is matched with the upper mortise of the top fourth sub-assembly 3 or the lower mortise of the bottom fourth sub-assembly 3, and the mortise of the fourth flat assembly 8 is matched with the upper tenon of the top third sub-assembly 4 or the lower tenon of the bottom third sub-assembly 4.
[0035] In the embodiment, the application adopts the alternate mortise and tenon connection structure, which can realize the close connection of the first right assembly and the second right assembly, and make the stacking structure of the third sub-assembly 4 and the stacking structure of the fourth sub-assembly 3 more close and stable.
[0036] Embodiment 4
[0037] The difference between the embodiment and the embodiment 1 is that the mortise and tenon structures are chamfered, after chamfering, the contact area of the mortise and tenon when matched is increased, which is beneficial to the fixation of the structure and convenient for clamping.
Claims
1. A wave-absorbing edge band with a mortise and tenon structure, characterized in that, The wave-absorbing surrounding edge is an inclined ring column structure, the bottom surface and the top surface of the ring column structure are both shuttle-shaped rings, a low scattering support is arranged in the inner ring of the wave-absorbing surrounding edge, the height, the inclination angle and the inclination direction of the wave-absorbing surrounding edge and the low scattering support are the same, the wave-absorbing surrounding edge is divided into a left surrounding edge and a right surrounding edge which are mutually attached along the diagonal line of the shuttle-shaped ring, the left surrounding edge is divided into a first left component and a second left component along the plane in which the perpendicular line from the inflection point of the curved surface of the left surrounding edge to the diagonal line of the shuttle-shaped ring is located, the first left component and the second left component are connected through a mortise and tenon structure, the right surrounding edge is divided into a first right component and a second right component along the plane in which the perpendicular line from the inflection point of the curved surface of the right surrounding edge to the diagonal line of the shuttle-shaped ring is located, and the first right component and the second right component are connected through a mortise and tenon structure.
2. The wave-absorbing edge band with a mortise and tenon structure according to claim 1, characterized in that, The first left component is stacked by a plurality of first sub-components (1) and a first flat component (5), two male tenons are arranged on each first sub-component (1), the height of the first flat component (5) is one half of the height of the first sub-component (1), and one male tenon is arranged on the first flat component (5); The second left component is stacked by a plurality of second sub-components (2) and a second flat component (6), two female tenons are arranged on each second sub-component (2), the height of the second flat component (6) is one half of the height of the second sub-component (2), one female tenon is arranged on the second flat component (6), and the height of the second sub-component (2) is the same as the height of the first sub-component (1); The two male tenons of one first sub-component (1) are matched with the two female tenons of different second sub-components (2) respectively, the two female tenons of one second sub-component (2) are matched with the two male tenons of different first sub-components (1) respectively, the male tenon of the first flat component (5) is matched with the female tenon above the topmost second sub-component (2) or the female tenon below the bottommost second sub-component (2), and the female tenon of the second flat component (6) is matched with the male tenon above the topmost first sub-component (1) or the male tenon below the bottommost first sub-component (1).
3. The wave-absorbing edge band with a mortise and tenon structure according to claim 1, characterized in that, The first right component is stacked by a plurality of third sub-components (4) and a third flat component (7), two male tenons are arranged on each third sub-component (4), the height of the third flat component (7) is one half of the height of the third sub-component (4), and one male tenon is arranged on the third flat component (7); The second right component is stacked by a plurality of fourth sub-components (3) and a fourth flat component (8), two female tenons are arranged on each fourth sub-component (3), the height of the fourth flat component (8) is one half of the height of the fourth sub-component (3), one female tenon is arranged on the fourth flat component (8), and the height of the fourth sub-component (3) is the same as the height of the third sub-component (4). The two male tenons of a third subassembly (4) are matched with two female tenons not located in the same fourth subassembly (3), the two female tenons of a fourth subassembly (3) are matched with two male tenons not located in the same third subassembly (4), the male tenon of the third flat assembly (7) is matched with the female tenon above the topmost fourth subassembly (3) or matched with the female tenon below the bottommost fourth subassembly (3), and the female tenon of the fourth flat assembly (8) is matched with the male tenon above the topmost third subassembly (4) or matched with the male tenon below the bottommost third subassembly (4).
4. The wave-absorbing edge band with a mortise and tenon structure according to claim 1, characterized in that, The mortise and tenon structures are chamfered.