CN216958503U

CN216958503U - Internet of vehicles V2X antenna

Info

Publication number: CN216958503U
Application number: CN202220913669.XU
Authority: CN
Inventors: 殷伟; 李春玫; 夏冰; 叶鸭泉; 朱其乐; 李红梅
Original assignee: Taizhou Suzhong Antenna Group Co ltd
Current assignee: Taizhou Suzhong Antenna Group Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-07-12
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses an Internet of vehicles V2X antenna, relates to a built-in automobile V2X antenna, and is suitable for automobiles. The antenna comprises a shell, a cover, an antenna, a reflecting plate, a PCB (printed circuit board) matching circuit board and a connector; an antenna is attached to the PCB matching circuit board, the connector is in tin soldering connection with the antenna, namely in tin soldering connection with the antenna matching circuit board, the PCB matching circuit board is fixed on the shell, the shell is provided with a limiting column, shell buckles are arranged on two sides of the shell, the antenna and the PCB matching circuit board are arranged in the shell along the limiting column of the shell, the limiting column and the PCB matching circuit board are fixed through a hot riveting process, and at the moment, the connector is matched with the shell; the inner wall of the shell is provided with a reflecting plate mounting clamping groove, and the reflecting plate is fixed in the reflecting plate mounting clamping groove.

Description

Internet of vehicles V2X antenna

Technical Field

The utility model discloses an Internet of vehicles V2X antenna, relates to a built-in automobile V2X antenna, and is suitable for automobiles.

Background

The advent of autonomous vehicles and the internet has placed increased demands on the field of wireless connectivity testing, particularly in the automotive to everything (V2X) technology being pursued by the automotive industry. The leading-edge technology allows the vehicles to communicate with each other and grasp the real surrounding road conditions, thereby ensuring the best driving safety. Because the existing V2X vehicle-mounted unit antenna is arranged in the front of the vehicle, the vehicle-mounted antenna is miniaturized due to the limitation of space, and an active antenna is adopted for solving and improving the performance and has the defect of high cost.

Disclosure of Invention

The utility model aims to provide a vehicle networking V2X antenna aiming at the defects, which is a passive antenna scheme arranged at the position of a rearview mirror or the inner position of a spoiler at the rear part of a vehicle, has smaller volume and more convenient and faster installation mode, and has better signal receiving stability and directional transmission efficiency than other schemes.

The networking of vehicles V2X antenna adopts the following technical scheme to realize:

the internet of vehicles V2X antenna includes a housing, a cover, an antenna, a reflector, a PCB match circuit board, and a connector.

The antenna is attached to the PCB matching circuit board, the connector and the antenna are connected through the connector soldering hole in a soldering mode, and meanwhile the connector and the antenna matching circuit board are connected in a soldering mode. The PCB matching circuit board is fixed on the shell, the shell is provided with a limiting column, shell buckles are arranged on two sides of the shell, the antenna and the PCB matching circuit board are arranged in the shell along the limiting column of the shell, the limiting column and the PCB matching circuit board are fixed by a hot riveting process, and at the moment, the connector (connector) is well matched with the shell;

the inner wall of the shell is provided with a reflecting plate mounting clamping groove, and the reflecting plate is fixed in the reflecting plate mounting clamping groove.

The reflecting plate adopts a metal plate or a metal anti-interference strip, and the reflecting plate adopts a split multi-body type or a split single-body type according to conditions.

And cover clamping grooves are formed in two sides of the cover and are connected with the shell in a buckling mode to clamp the cover on the shell.

And mounting holes are formed in two sides of the shell and used for being assembled with a vehicle body.

The antenna adopts a PCB antenna or a metal antenna.

The PCB matching circuit board adopts an FR-4 epoxy resin board.

The connector (connector assembly) adopts a FAKRA plate end connector or a coaxial line output end connector.

When the car networking V2X antenna used, be equipped with the mounting hole through the casing both sides, with vehicle body assembly, the mountable is in rear-view mirror position or rear of the vehicle spoiler position for receive V2X signal, through FAKRA plate end connector or coaxial line output end connector, on-vehicle coaxial cable line and the interior terminal connection of car, can carry out V2X signal communication in the car.

The vehicle networking V2X antenna has reasonable design, compact structure, small volume and convenient use, is used for realizing the intercommunication between vehicles and ensuring the optimal driving safety. The technical scheme provided by the utility model is smaller in size and more convenient in installation mode, and the networking V2X antenna is arranged at the position of a rearview mirror or the inner position of a spoiler at the rear of a vehicle, so that the space is saved, and the performance is more outstanding. The V2X antenna scheme is adopted to meet the configuration requirements of different vehicle types and reduce the practical cost. The car networking V2X antenna mounting means is more convenient, the stability of received signal, long service life. The V2X antenna is mounted at the position of a rearview mirror or the inner position of a spoiler at the rear of a vehicle, so that the space is saved, and the performance is more outstanding. The V2X antenna scheme is adopted to meet the configuration requirements of different vehicle types and reduce the practical cost.

The car networking V2X antenna can increase V2X antenna and accept signal intensity owing to be equipped with the reflecting plate, and the interference killing feature is good, greatly increased acceptance signal's stability.

The V2X antenna of the internet of vehicles is a passive antenna scheme installed at the position of a rearview mirror or the inner position of a spoiler at the rear of a vehicle, the volume is smaller, the installation mode is more convenient, and the stability of receiving signals and the directional transmission efficiency are superior to those of V2X antennas in other schemes.

Drawings

The utility model will be further explained with reference to the drawings, in which:

fig. 1 is a schematic view of a vehicle networking V2X antenna.

Fig. 2 is a schematic diagram of the internal structure of the internet of vehicles V2X antenna.

Fig. 3 is an exploded view of the antenna structure of the internet of vehicles V2X.

FIG. 4 is a graph of simulated standing waves for an Internet of vehicles V2X antenna; VSWR: 1.39@ 5.85G; 1.46@5.93G

Fig. 5 is a schematic diagram 1 of simulation data of the V2X antenna in the internet of vehicles, which is illustrated as a radiation direction gain diagram of Theta =90 ° @5.9 GHz:

maximum directions m1=5.67dBi, m2, m4 =5.2dBi (in the 30 ° direction), m3, m5=3dBi (in the 60 ° direction), m7, m8=0.7dBi (in the 90 ° direction);

figure 6 is a schematic diagram of the internet of vehicles V2X antenna simulation data 2,

illustrated as the radiation direction gain plot of Theta =86 ° @5.925 GHz:

m1=5.7dBi, m2, m3 =5.2dBi (in the 30 ° direction), m4, m5=3.1dBi (in the 60 ° direction), m6, m7=0.8dBi (in the 90 ° direction);

FIG. 7 is Internet of vehicles V2X antenna simulation data; illustrated as the radiation direction gain plot of Theta =96 ° @5.925 GHz:

m1=5.8dBi, m2, m3 =5.3dBi (in the 30 ° direction), m4, m5=3.2dBi (in the 60 ° direction), m6, m7=1.0dBi (in the 90 ° direction);

fig. 8 is an actual view of fig. 1, which is a Theta =90 degree 2D radiation pattern;

fig. 9 is an actual fig. 2, which is a @ Phi =0 degree 2D radiation diagram;

fig. 10 is an actual fig. 3, which is a @ Phi =90 degree 2D radiation diagram.

In the figure: 1. casing, 2, lid, 3, antenna, 4, reflecting plate, 5, PCB matching circuit board, 6, connector, 7, connector tin welding hole, 8, spacing post, 9, casing buckle, 10, lid draw-in groove, 11, casing draw-in groove, 12, mounting hole.

Detailed Description

Referring to fig. 1-10, the internet of vehicles V2X antenna includes a housing 1, a cover 2, an antenna 3, a reflector plate 4, a PCB matching circuit board 5, and a connector 6.

The antenna 3 is attached to the PCB matching circuit board 5, the connector 6 is soldered to the antenna 3 through the connector soldering hole 7, and the connector 6 is soldered to the antenna matching circuit board 5. The PCB matching circuit board 5 is fixed on the shell 1, the shell 1 is provided with a limiting column 8, shell buckles 9 are arranged on two sides of the shell 1, the antenna 3 and the PCB matching circuit board 5 are arranged in the shell along the limiting column 8 of the shell, the limiting column 8 and the PCB matching circuit board 5 are fixed by a hot riveting process, and at the moment, the connector 6 (a connector) is well matched with the shell 1;

the inner wall of the shell 1 is provided with a reflecting plate mounting clamping groove 11, and the reflecting plate 4 is fixed in the reflecting plate mounting clamping groove 11.

The reflecting plate 4 is made of a metal plate or a metal anti-interference strip. The reflecting plate is divided into a plurality of bodies or a plurality of single bodies according to conditions.

Two sides of the cover 2 are provided with cover clamping grooves 10, and the cover clamping grooves 10 are buckled with the shell body 9

The cover 2 is clamped to the housing 1.

And mounting holes 12 are formed in two sides of the shell 1 and used for being assembled with a vehicle body.

The antenna 3 adopts a PCB antenna or a metal antenna.

The PCB matching circuit board 5 is an FR-4 epoxy resin board.

The connector 6 (connector) adopts a FAKRA plate end connector or a coaxial line output end connector.

Referring to fig. 4, a simulated standing wave diagram of the V2X antenna of the internet of vehicles is shown; wherein the VSWR: 1.39@ 5.85G; 1.46@ 5.93G.

The minimum standing wave is 1, which means that the real part impedance of all frequency points is 50 ohms, the imaginary part impedance is 0 ohms, and the simulation shows that the value of the standing wave ratio is very small and therefore very close to 50 ohms, so that the efficiency of the antenna is very high, 1.39 corresponds to 97% of efficiency, and 1.46 corresponds to 96.5% of efficiency.

Referring to fig. 5, it is a schematic diagram 1 of simulation data of a V2X antenna in the internet of vehicles, and the diagram is a radiation direction gain diagram of Theta =90 ° @5.9 GHz:

where the maximum direction m1=5.67dBi, m2, m4 =5.2dBi (in the 30 ° direction), m3, m5=3dBi (in the 60 ° direction), m7, m8=0.7dBi (in the 90 ° direction).

Referring to fig. 6, a schematic diagram 2 of the simulation data of the internet of vehicles V2X antenna is shown,

the radiation direction gain plot is illustrated as Theta =86 ° @5.925 GHz.

Where m1=5.7dBi, m2, m3 =5.2dBi (in the 30 ° direction), m4, m5=3.1dBi (in the 60 ° direction), and m6, m7=0.8dBi (in the 90 ° direction).

Referring to fig. 7, there is shown networking in vehicle V2X antenna simulation data; illustrated as the radiation direction gain plot of Theta =96 ° @5.925 GHz:

where m1=5.8dBi, m2, m3 =5.3dBi (in the 30 ° direction), m4, m5=3.2dBi (in the 60 ° direction), and m6, m7=1.0dBi (in the 90 ° direction).

the theta focuses on the gain value of 360 degrees in the horizontal azimuth angle respectively at 86 degrees, 90 degrees and 96 degrees, the angle of the vertex degree on the rectangular coordinate system is increased clockwise by 0 degree, when the maximum gain of the antenna is set to be 270 degrees, the gain of the antenna can reach 5dBi in the range of 240 plus 300 degrees, the gain can reach more than 2.5dBi at the angles of 300 plus 330 degrees and 210 plus 240 degrees, and the gain can reach more than 0.5dBi at the angles of 0-330 degrees and 180 plus 210 degrees, so that the requirement that the strip antenna can meet the signal transmission of the vehicles and vehicles in the interval within the whole frequency band and high and low elevation angles is met, and two metal reflection strips on the back of the antenna play a crucial role in the directional control.

Referring to fig. 8, fig. 1 is an actual view of Theta =90 degree 2D radiation pattern.

Referring to fig. 9, there is shown an example of fig. 2, which is a @ Phi =0 degree 2D radiation pattern.

Referring to fig. 10, there is shown in fig. 3 a @ Phi =90 degree 2D radiation pattern.

When the vehicle networking V2X antenna is used, the mounting holes 12 are arranged on two sides of the shell 1, the antenna is assembled with a vehicle body, can be mounted at the position of a rearview mirror or the inner position of a spoiler at the rear of the vehicle and used for receiving a V2X signal, and is connected with a terminal in the vehicle through the connector 6 and a vehicle-mounted coaxial cable, so that V2X signal communication can be carried out in the vehicle.

Claims

1. A vehicle networking V2X antenna is characterized by comprising a shell, a cover, an antenna, a reflecting plate, a PCB (printed Circuit Board) matching circuit board and a connector;

an antenna is attached to the PCB matching circuit board, the connector and the antenna are in tin soldering connection through a connector tin soldering hole, the connector and the antenna matching circuit board are in tin soldering connection, the PCB matching circuit board is fixed on the shell, the shell is provided with a limiting column, shell buckles are arranged on two sides of the shell, the antenna and the PCB matching circuit board are arranged in the shell along the limiting column of the shell, the limiting column and the PCB matching circuit board are fixed through a hot riveting process, and at the moment, the connector and the shell are well matched;

2. The internet of vehicles V2X antenna of claim 1, wherein the reflector is a metal plate or a metal tamper strip.

3. The internet of vehicles V2X antenna of claim 1, wherein the baffle pattern is split into multiple pieces or split into single pieces depending on the conditions.

4. The vehicle networking V2X antenna of claim 1, wherein the cover is provided with cover slots on both sides, and the cover slots snap-fit with the housing to clamp the cover to the housing.

5. The internet of vehicles V2X antenna of claim 1, wherein the housing has mounting holes on both sides for assembling with the vehicle body.

6. The internet of vehicles V2X antenna of claim 1, wherein the antenna is a PCB or metal antenna.

7. The internet of vehicles V2X antenna of claim 1, wherein the PCB matching circuit board is FR-4 epoxy board.

8. The vehicle networking V2X antenna of claim 1, wherein the connector is a FAKRA board end connector or a coaxial cable end connector.