Vehicle-mounted radar array antenna

Abstract

The utility model discloses a vehicle-mounted radar array antenna, belonging to the antenna technology field, the vehicle-mounted radar array antenna comprises a pedestal and a pillar tube body fixed on the pedestal, the pillar tube body is provided with an antenna receiving range expanding mechanism, the antenna receiving range expanding mechanism comprises a rotating assembly arranged on the pillar tube body, and the rotating assembly is provided with a rotating shaft. The rotating assembly is used for providing power for changing the position of the array antenna so as to avoid the influence from a static or periodic interference source, the rotating assembly and the supporting column pipe body are provided with an unfolding assembly, and the extending end of the unfolding assembly is provided with an antenna main body. According to the utility model, by designing the rotating assembly and the unfolding assembly, when the vehicle-mounted radar array antenna is used, the exploration range of the radar array antenna can be controlled, and the position of the array antenna can be replaced, so that the receiving range can be adjusted, and signals in a specific area can be better captured, especially in complex environments such as cities or complex terrains. And unnecessary interference signals can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a vehicle-mounted radar array antenna. Background Technology

[0002] Automotive radar array antennas are a core component of modern intelligent driving systems, widely used in technologies such as autonomous driving and driver assistance systems. They detect objects in the surrounding environment by emitting and receiving electromagnetic waves and transmit information in real time, providing vehicles with accurate distance, speed, and angle data. Automotive radar array antennas employ an array design, arranging multiple antenna elements in a specific geometric structure, enabling beam control and multi-angle scanning, thereby improving detection range and resolution.

[0003] While vehicle-mounted radar array antennas offer good detection performance in practical applications, their structure has certain limitations. Because existing vehicle-mounted radar array antennas typically consist of a row of fixed antenna elements, their beam direction and coverage are relatively fixed and difficult to adjust flexibly. As a result, changes in the position, speed, and angle of surrounding objects during vehicle operation continuously affect the quality of radar signal reception, and the array antenna cannot adjust its beam direction in real time, thus reducing the performance of the vehicle-mounted radar array antenna.

[0004] Therefore, there is an urgent need to provide a vehicle-mounted radar array antenna to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a vehicle-mounted radar array antenna.

[0006] To solve the above-mentioned technical problems, the present invention provides a vehicle-mounted radar array antenna, including a base and a support tube fixed thereon, wherein the support tube is provided with a mechanism for extending the antenna receiving range.

[0007] The extended antenna receiving range mechanism includes a rotating component mounted on the support tube to provide power to change the position of the array antenna in order to avoid the influence of static or periodic interference sources. The rotating component and the support tube are provided with an unfolding component that expands the receiving area and distributes the array.

[0008] The extended end of the deployable component is provided with an antenna body.

[0009] The present invention is further configured such that: the rotating component includes a miniature hydraulic cylinder fixed in the base, and the miniature hydraulic cylinder is provided with a multi-stage piston rod for providing power to extend on the support tube.

[0010] The utility model further sets up: the T type sliding seat of support unfolding subassembly is unfolded is sleeved on the support column body, and array distribution's fixed groove is arranged on the T type sliding seat.

[0011] The utility model further sets up: the symmetric slide column is arranged to the multistage piston rod away from the one side of micro hydraulic cylinder, the same screw groove that slide column slides is arranged on the support column body, the slide column is fixed with the T type sliding seat.

[0012] The utility model further sets up: the unfolding subassembly includes the support ring that rotates in the top of support column body and the second connecting rod that rotates on it, the first connecting rod of the other end rotation of second connecting rod and one end is located on the fixed groove, and the other end of first connecting rod is provided with the third connecting rod and fourth connecting rod that are arranged in parallel, the other end of third connecting rod and fourth connecting rod is rotatably connected with antenna main part.

[0013] The utility model further sets up: the rotation seat for swing connection is arranged between every two adjacent first connecting rod, second connecting rod, third connecting rod, fourth connecting rod or antenna main part.

[0014] The utility model has the advantages as follows:

[0015] 1. The utility model discloses a rotation subassembly and unfolding subassembly are designed, can control the exploration range of radar array antenna when using the vehicle-mounted radar array antenna, and can replace the position of array antenna, and then adjust the receiving range, can better capture the signal of specific area, especially in complex environment, such as city or complex terrain, can avoid unnecessary interference signal;

[0016] 2. The utility model discloses a rotation subassembly and unfolding subassembly, so that radar array antenna can expand the circumferential range, and then improve the antenna receiving area, and receive signal better, and can drive array antenna rotation when array antenna is unfolded, change array antenna position, thereby realize multi-angle, all -round environmental perception, significantly improve the response precision and stability of radar system in high -speed dynamic scene. DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the internal structure schematic diagram of the utility model;

[0019] Figure 3 It is Figure 2 The local enlarged view of A in the middle.

[0020] In the figure: 11, base; 12, support pipe body; 13, antenna main body; 2, rotating assembly; 21, micro hydraulic cylinder; 22, multi-stage piston rod; 23, sliding column; 24, threaded groove; 25, T-shaped sliding seat; 26, fixed groove; 3, unfolding assembly; 31, first connecting rod; 32, support ring; 33, second connecting rod; 34, third connecting rod; 35, fourth connecting rod; 36, rotating seat. DETAILED DESCRIPTION

[0021] The advantages and features of the present application will be more easily understood by the person skilled in the art through the detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings, so as to make the protection scope of the present application more clearly defined.

[0022] Please refer to Figures 1-3 A vehicle-mounted radar array antenna, comprising a base 11 and a support pipe body 12 fixed thereon, the support pipe body 12 is provided with an extended antenna receiving range mechanism, the extended antenna receiving range mechanism comprises a rotating assembly 2 arranged on the support pipe body 12, which is used to provide power to change the position of the array antenna to avoid the influence from static or periodic interference sources, the rotating assembly 2 and the support pipe body 12 are provided with an unfolding assembly 3 which is arrayed and expanded, and the extended end of the unfolding assembly 3 is provided with an antenna main body 13.

[0023] The vehicle-mounted radar array antenna fixes the support pipe body 12 on the vehicle through the base 11, and the antenna main body 13 of the array is installed above the support pipe body 12, the radar utilizes the electromagnetic wave emission and receiving function of the array antenna, and simultaneously captures the echo signals from different directions through the antenna array, after processing these signals, the radar system can accurately determine the position and speed of the obstacles, vehicles or other targets in the surrounding environment, thereby providing real-time perception and decision support for automatic driving, improving the detection accuracy, range and anti-interference ability, and effectively ensuring the safe driving of the vehicle.

[0024] As Figures 2-3 shown, the rotating assembly 2 comprises a micro hydraulic cylinder 21 fixed in the base 11, and the micro hydraulic cylinder 21 is provided with a multi-stage piston rod 22 for providing power to extend on the support pipe body 12, the support pipe body 12 is sleeved with a T-shaped sliding seat 25 for supporting the unfolding of the unfolding assembly 3, and the T-shaped sliding seat 25 is provided with arrayed fixed grooves 26, the multi-stage piston rod 22 is provided with symmetrical sliding columns 23 away from the micro hydraulic cylinder 21, the support pipe body 12 is provided with screw grooves 24 of the same screw direction for the sliding of the sliding columns 23, and the sliding columns 23 are fixed with the T-shaped sliding seat 25.

[0025] When the vehicle-mounted radar array antenna is in use, the antenna body 13 of the array is enabled to change position and flexibly search for a signal source by means of the rotating assembly 2, specifically, the micro hydraulic cylinder 21 is started to drive the multi-stage piston rod 22 to extend, the slide column 23 is screw-slid in the screw groove 24, thereby pushing the T-shaped slide base 25 to ascend and rotate along the support pipe body 12, it is to be noted that the screw grooves 24 are arranged in the same direction, so that the T-shaped slide base 25 can rotate smoothly, thereby driving the unfolding assembly 3 to synchronously ascend and rotate, realizing multi-angle accurate positioning of the antenna body 13 in space, and meanwhile, by adjusting the position of the antenna, invalid signal reception can be reduced, and power consumption of the radar system can be optimized.

[0026] As shown in Figure 2 the unfolding assembly 3 comprises a support ring 32 rotating at the top of the support pipe body 12 and a second connecting rod 33 rotating thereon, the second connecting rod 33 rotates at one end of the first connecting rod 31 and one end is located on the fixed groove 26, and the other end of the first connecting rod 31 is provided with the third connecting rod 34 and the fourth connecting rod 35 arranged in parallel, the other ends of the third connecting rod 34 and the fourth connecting rod 35 are rotationally connected with the antenna body 13, and the rotating seat 36 for active connection is arranged between every two adjacent first connecting rods 31, second connecting rods 33, third connecting rods 34, fourth connecting rods 35 or antenna bodies 13.

[0027] When the T-shaped slide base 25 ascends, due to the arrangement of the screw grooves 24, when the T-shaped slide base 25 rotates, the first connecting rod 31 and the second connecting rod 33 rotationally arranged on the support pipe body 12 are driven to rotate at this time, the first connecting rod 31 is slid in the fixed groove 26, and under the support of the second connecting rod 33, the third connecting rod 34 and the fourth connecting rod 35 arranged in parallel are driven to synchronously unfold, the antenna body 13 is pushed to extend outward and positioned at a preset angle, thereby realizing dynamic opening and closing of the radar array and adjustment of the spatial posture, improving the signal acquisition range, and expanding on the basis of rotation, flexibly adjusting the beam direction and coverage range, the signal acquisition effect is obviously improved, and the working performance of the vehicle-mounted radar array antenna is effectively improved.

[0028] The above is only an embodiment of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation by means of the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A vehicular radar array antenna comprising a base (11) and a support column body (12) fixed thereto, characterized in that: The pillar pipe body (12) is provided with an extended antenna receiving range mechanism; The extended antenna receiving range mechanism comprises a rotating assembly (2) provided on the pillar pipe body (12), which is used for providing power for changing the position of the array antenna to avoid the influence from static or periodic interference sources, and the rotating assembly (2) and the pillar pipe body (12) are provided with an extended receiving area and array distributed unfolding assembly (3). The unfolding assembly (3) is provided with an antenna main body (13) at the extending end.

2. The vehicular radar array antenna of claim 1, wherein: The rotating assembly (2) comprises a micro hydraulic cylinder (21) fixed in the base (11), and the micro hydraulic cylinder (21) is provided with a multi-stage piston rod (22) for providing power to extend on the pillar pipe body (12).

3. A vehicular radar array antenna according to claim 2, characterized in that: The pillar pipe body (12) is sleeved with a T-shaped sliding seat (25) for supporting the unfolding of the unfolding assembly (3), and the T-shaped sliding seat (25) is provided with array distributed fixing grooves (26).

4. The vehicular radar array antenna of claim 3, wherein: The multi-stage piston rod (22) is provided with symmetrical slide columns (23) away from the micro hydraulic cylinder (21), the pillar pipe body (12) is provided with the same screw grooves (24) for the sliding of the slide columns (23), and the slide columns (23) are fixed with the T-shaped sliding seat (25).

5. The vehicular radar array antenna of claim 3, wherein: The unfolding assembly (3) comprises a supporting ring (32) rotating on the top of the pillar pipe body (12) and a second connecting rod (33) rotating thereon, one end of the second connecting rod (33) is rotatably connected with the first connecting rod (31) and the other end of the first connecting rod (31) is provided with the third connecting rod (34) and the fourth connecting rod (35) arranged in parallel, and the other ends of the third connecting rod (34) and the fourth connecting rod (35) are rotatably connected with the antenna main body (13).

6. A vehicular radar array antenna according to claim 5, characterized in that: Every two adjacent first connecting rods (31), second connecting rods (33), third connecting rods (34), fourth connecting rods (35) or antenna main bodies (13) are provided with rotating seats (36) for movable connection.

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