Radar antenna structure

Abstract

The utility model belongs to the technical field of radar antennas, and particularly relates to a radar antenna structure. The device comprises a connecting seat; the supporting frame is installed on the connecting base and comprises a base, a plurality of supporting rods and a supporting ring, the base is installed on the connecting base, a containing cavity is formed in the base, the supporting rods are arranged on the periphery of the base at intervals, main reflecting surfaces are arranged on the inner sides of the supporting rods, and the supporting ring is connected to the ends, away from the base, of the supporting rods; the secondary reflector is arranged above the reflecting surface; the outer edge of the protective cover is detachably connected with the supporting ring. The support frame is used for solving the problem of high cost caused by large mass of a radar antenna, a feed source antenna and the like are placed in the accommodating cavity in the base, the plurality of support rods and the support rings form a main body for supporting a reflecting surface and an auxiliary reflector, the overall structural strength is high, the structures of the support rods, the support rings and the like reduce the overall mass, and the cost is synchronously reduced; the outer edge of the protective cover is detachably connected with the supporting ring, so that the protective cover is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model belongs to the field of radar antenna technology, and specifically relates to a radar antenna structure. Background Technology

[0002] A radar antenna is a key component of a radar system. Its main function is to radiate high-frequency electromagnetic energy generated by the transmitter into space and to receive electromagnetic waves reflected back from targets, thereby enabling target detection, location, and tracking. It can be considered the "window" through which the radar system exchanges electromagnetic signals with the outside world.

[0003] The internal support frame of the radar antenna is the main structure supporting the radar. The support frame is required to have good rigidity and strong wind resistance. Therefore, a large structure is generally adopted. At the same time, mechanical methods such as pins are used to achieve precise matching of each part of the structure. However, this results in a large overall weight of the radar antenna, which puts higher demands on the radar's servo system. The larger weight of the radar antenna will lead to higher requirements for the selection of the servo system and increase costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a radar antenna structure to solve the problem of high cost caused by the large mass of radar antennas.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A radar antenna structure, comprising:

[0006] Connector;

[0007] A support frame is installed on the connecting seat. The support frame includes a base, a plurality of support rods and a support ring. The base is installed on the connecting seat. An accommodating cavity is formed inside the base. The support rods are spaced apart on the outer periphery of the base. A main reflective surface is provided on the inner side of the plurality of support rods. The support ring is connected to the support rod at the end away from the base.

[0008] A secondary reflector is disposed above the reflective surface;

[0009] A protective cover is provided on the sub-reflector, and the outer edge of the protective cover is detachably connected to the support ring.

[0010] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0011] A connecting seat is set at the bottom of the support frame to ensure a stable connection between the support frame and the radar servo system. The support frame houses the feed antenna and other components through the cavity in the base. Multiple support rods and support rings form the main body supporting the reflector and sub-reflector, resulting in high overall structural strength. At the same time, the use of support rods and support rings reduces the overall weight and lowers the cost. Furthermore, the detachable connection between the outer edge of the protective cover and the support ring makes the protective cover easy to assemble and disassemble, and simple to operate.

[0012] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0013] In one embodiment, a connecting rod is provided between two adjacent support rods.

[0014] By adding connecting rods between the support rods, the connection strength between the support rods can be enhanced.

[0015] In one embodiment, a plurality of fixing blocks are spaced apart on the outer periphery of the support ring, and the fixing blocks are provided with connecting holes that connect to the outer edge of the protective cover.

[0016] By setting a fixing block on the support ring and using the connecting hole on the fixing block to connect and fix it to the outer edge of the protective cover, the protective cover and the support ring can be detachably connected.

[0017] In one embodiment, the two sides of the support ring are bent toward opposite sides to form bends, and the two bends are respectively attached to the end of the support rod and the fixing block.

[0018] By bending the support ring on both sides, the support ring forms two angled bends, which can have a good contact area with the end of the support rod and the fixing block, respectively.

[0019] In one embodiment, reinforcing plates are spaced circumferentially inside the base, and a hollow hole is formed in the center of each reinforcing plate.

[0020] A reinforcing plate is installed inside the base to improve its structural strength. At the same time, a weight-reducing hole is formed in the center of the reinforcing plate to reduce the overall weight.

[0021] In one embodiment, the reinforcing plate and the support rod are arranged in a one-to-one correspondence, and a first wire passage hole is opened on the outer periphery of the base between two adjacent support rods.

[0022] By setting a first wire-passing hole, the waveguide can be inserted into the base through the outer periphery of the base. The reinforcing plate corresponds to the external support rod, avoiding the path of entering the base through the first wire-passing hole.

[0023] In one embodiment, a support cylinder is provided at the center of the base, and the two ends of the support cylinder pass through the top and bottom of the base. The outer periphery of the support cylinder is connected to the reinforcing plate, and a second wire passage hole corresponding to the first wire passage hole is provided at a distance from the outer periphery of the support cylinder.

[0024] In one embodiment, the connecting seat has a through channel at its center, and the channel communicates with the interior of the support cylinder. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 for Figure 1 A cross-sectional structural diagram.

[0028] Figure label:

[0029] 1. Connecting base; 2. Support frame; 3. Sub-reflector; 4. Protective cover;

[0030] 201. Base; 202. Support rod; 203. Support ring;

[0031] 5. Connecting rod; 6. Fixing block; 7. Connecting hole; 8. Bending part; 9. Reinforcing plate; 10. Hole; 11. First wire passage hole; 12. Support cylinder; 13. Second wire passage hole; 14. Channel; 15. Protective plate. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0033] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0034] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Example

[0038] like Figure 1-2 As shown, the radar antenna structure provided by this utility model includes: a connecting base 1, a support frame 2, a sub-reflector 3, and a protective cover 4.

[0039] The support frame 2 is connected to the radar's servo system via the connecting seat 1. The support frame 2 includes a base 201, several support rods 202, and a support ring 203. The base 201 is mounted on the connecting seat 1, and a receiving cavity is formed inside the base 201. The support rods 202 are spaced apart on the outer periphery of the base 201. Specifically, the support rods 202 are arc-shaped support rods 202. A main reflective surface is provided on the inner side of several support rods 202, so that the main reflective surface can fit against the inner side of the arc-shaped support rod 202. For the sake of convenience in showing the support rods 202, the main reflective surface is not shown in the figure. The support ring 203 is connected to the end of the support rod 202 away from the base 201, and plays the role of fixing the far end of the multiple support rods 202. The sub-reflector 3 is disposed above the reflective surface and spaced apart from the base 201 at the bottom of the main reflective surface.

[0040] The protective cover 4 is placed on the sub-reflector 3, and the outer edge of the protective cover 4 is detachably connected to the support ring 203. The outer edge of the protective cover 4 is bent downward to cover the support ring 203.

[0041] A connecting seat 1 is set at the bottom of the support frame 2, so that the support frame 2 as a whole is stably connected to the radar servo system. The support frame 2 holds the feed antenna and other components through the cavity in the base 201. Multiple support rods 202 and support rings 203 form the main body supporting the reflector and sub-reflector 3. The overall structure has high strength. At the same time, the use of support rods 202, support rings 203 and other structures reduces the overall weight and reduces the cost. The outer edge of the protective cover 4 is detachably connected to the support ring 203, making the protective cover 4 easy to assemble and disassemble and simple to use.

[0042] To ensure the structural strength of the support frame 2, a connecting rod 5 is connected between two adjacent support rods 202. The connecting rod 5 and the support rod 202 form a frame structure to support the main reflector and the sub-reflector 3 installed on the main reflector. By adding the connecting rod 5 between the support rods 202, the connection strength between the support rods 202 can be strengthened.

[0043] To achieve a detachable connection, a number of fixing blocks 6 are spaced apart on the outer periphery of the support ring 203. The fixing blocks 6 are provided with connecting holes 7 that connect to the outer edge of the protective cover 4. The connecting holes 7 can be screw holes. Screws or the like are inserted through the corresponding screw holes on the edge of the protective cover 4 to fix the protective cover 4 to the connecting holes 7, thus making the protective cover 4 and the support ring 203 detachable.

[0044] To ensure the strength of the support ring 203, the fixing block 6, and the connection with the end of the support rod 202, the two sides of the support ring 203 are bent towards opposite sides to form bending portions 8. The bending portions are bent at a certain angle. The upper edge of the support ring 203 is bent outward to cover the adjacent two sides of the fixing block 6, and the lower edge of the support ring 203 is bent inward to cover the end of the support rod 202. This allows the two bending portions 8 to fit against the end of the support rod 202 and the fixing block 6, respectively, thereby connecting the fixing block 6 and the support rod 202 through the support ring 203.

[0045] By bending the support ring 203 on both sides, the support ring 203 forms two bent portions 8 at an angle, and the bent portions 8 on both sides can have a good contact area with the end of the support rod 202 and the fixing block 6 respectively.

[0046] To improve the internal structural strength of the base 201, reinforcing plates 9 are arranged circumferentially inside the base 201. A hollow hole 10 is formed in the center of the reinforcing plate 9. The reinforcing plates 9 inside the base 201 improve the structural strength of the base 201. At the same time, the hollow hole in the center of the reinforcing plate 9 forms a weight-reducing hole to reduce the overall weight.

[0047] The reinforcing plate 9 is arranged in a one-to-one correspondence with the support rod 202. The outer periphery of the base 201 is provided with a first wire passage hole 11 between two adjacent support rods 202, so that the support rods 202 outside the base 201 and the reinforcing plate 9 inside the base 201 do not interfere with the first wire passage hole 11. By providing the first wire passage hole 11, the waveguide can be inserted into the interior of the base 201 through the outer periphery of the base 201. The reinforcing plate 9 corresponds to the outer support rod 202, avoiding the path of entering the interior of the base 201 through the first wire passage hole 11.

[0048] Furthermore, a protective plate 15 can be installed on the first wire hole 11 to block the unused first wire hole 11 and provide a certain degree of protection.

[0049] To facilitate the placement of the internal feed antenna, a support cylinder 12 is provided at the center of the base 201. The support cylinder 12 is vertically continuous, and both ends of the support cylinder 12 are connected to the top and bottom of the base 201. The support cylinder 12 can be integrally formed with the base 201, and the outer periphery of the support cylinder 12 is connected to the reinforcing plate 9.

[0050] The support cylinder 12 is provided with a second wire passage hole 13 at intervals on its outer periphery, which corresponds to the first wire passage hole 11, so that the waveguide that enters from the outside of the base 201 through the first wire passage hole 11 can enter the interior of the support cylinder 12 through the second wire passage hole 13.

[0051] The connecting seat 1 has a through channel 14 at its center, which is connected to the inside of the support cylinder 12. Thus, the bottom of the connecting seat 1 can pass through the through channel 14 to connect with the inside of the support cylinder 12, facilitating the passage of wires from this point.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A radar antenna structure, characterized in that, include: Connector; A support frame is installed on the connecting seat. The support frame includes a base, a plurality of support rods and a support ring. The base is installed on the connecting seat. An accommodating cavity is formed inside the base. The support rods are spaced apart on the outer periphery of the base. A main reflective surface is provided on the inner side of the plurality of support rods. The support ring is connected to the support rod at the end away from the base. A secondary reflector is disposed above the reflective surface; A protective cover is provided on the sub-reflector, and the outer edge of the protective cover is detachably connected to the support ring.

2. The radar antenna structure according to claim 1, characterized in that, A connecting rod connects two adjacent support rods.

3. The radar antenna structure according to claim 1, characterized in that, The outer periphery of the support ring is provided with a number of fixing blocks at intervals, and the fixing blocks are provided with connection holes that connect to the outer edge of the protective cover.

4. The radar antenna structure according to claim 3, characterized in that, The two sides of the support ring are bent toward opposite sides to form bends, and the two bends are respectively attached to the end of the support rod and the fixing block.

5. The radar antenna structure according to claim 1, characterized in that, The base has reinforcing plates spaced circumferentially inside, and the center of each reinforcing plate has a hollow hole.

6. The radar antenna structure according to claim 5, characterized in that, The reinforcing plate is provided in a one-to-one correspondence with the support rod, and a first wire passage hole is provided on the outer periphery of the base between two adjacent support rods.

7. The radar antenna structure according to claim 6, characterized in that, A support cylinder is provided at the center of the base. The two ends of the support cylinder pass through the top and bottom of the base. The outer periphery of the support cylinder is connected to the reinforcing plate. A second wire passage hole corresponding to the first wire passage hole is provided at intervals on the outer periphery of the support cylinder.

8. The radar antenna structure according to claim 7, characterized in that, The connecting seat has a through channel at its center, and the channel is connected to the interior of the support cylinder.

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