CN210838074U

CN210838074U - Separated C-V2X antenna

Info

Publication number: CN210838074U
Application number: CN201921938954.1U
Authority: CN
Inventors: 何明超; 田苗; 唐恺; 叶嘉宾
Original assignee: Huizhou Desay SV Automotive Co Ltd
Current assignee: Huizhou Desay SV Automotive Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-23
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a disconnect-type C-V2X antenna, including a car body, the rear top of car body is provided with shark fin shell, be provided with first C-V2X antenna in the shark fin shell, the front end of car body is provided with the grid layer, the inboard on grid layer is provided with second C-V2X antenna, the outside cover of second C-V2X antenna is equipped with the antenna house. The utility model discloses a disconnect-type C-V2X antenna, the first C-V2X antenna of rational arrangement and second C-V2X antenna have increased the coverage of antenna to promote user experience.

Description

Separated C-V2X antenna

Technical Field

The utility model relates to an automatic technical field especially relates to a disconnect-type C-V2X antenna.

Background

At present, with the development of communication technology, the requirement of consumers for automobiles is higher and higher, and the internet of vehicles is one of the requirements. In europe, the united states, japan, etc., mainly pursues the DSRC (Dedicated Short range communication) standard, and china pursues the C-V2X (Cellular-vehicular networking) standard. In China, two antennas, namely a main antenna and a diversity antenna, need to be added to support the function of a C-V2X antenna, and the current traditional design scheme integrates two C-V2X antennas inside a shark fin shell and has three disadvantages: (1) increasing the pressure of the space inside the shark fin shell; (2) the two C-V2X antennas are arranged in the shark fin with small space, so that the directivity of the antennas and the isolation between the antennas are influenced; (3) the shark fin shell is arranged behind the vehicle, and certain application scenes are poor in coverage, so that the user experience is affected, such as a scene that the vehicle ascends a slope. Therefore, the arrangement of the C-V2X antenna is becoming more and more important to enhance the practical experience of the user while ensuring the performance of the antenna.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disconnect-type C-V2X antenna, its rationally distributed C-V2X antenna has increased the coverage of antenna to promote user experience.

In order to realize the above object, the utility model provides a disconnect-type C-V2X antenna, including a car body, the rear top of car body is provided with the shark fin shell, be provided with first C-V2X antenna in the shark fin shell, the front end of car body is provided with the grid layer, the inboard on grid layer is provided with second C-V2X antenna, the outside cover of second C-V2X antenna is equipped with the antenna house.

In a preferred embodiment, the frequency bands of the first C-V2X antenna and the second C-V2X antenna are both 5.905 GHz to 5.925 GHz.

In a preferred embodiment, the shark fin outer shell has a length of 160mm, a width of 60mm and a height of 60 mm.

In a preferred embodiment, the first C-V2X antenna is used for transmitting and receiving signals.

In a preferred embodiment, the second C-V2X antenna is used for receiving signals.

In a preferred embodiment, the lower end of the second C-V2X antenna is provided with an antenna feed pin.

In a preferred embodiment, the first C-V2X antenna covers a rear area of the vehicle body, and the second C-V2X antenna covers a front area of the vehicle body.

To sum up, the application the technical scheme of the utility model, following beneficial effect has: the utility model discloses a disconnect-type C-V2X antenna, the first C-V2X antenna of rational arrangement and second C-V2X antenna, the coverage of vehicle antenna has been increased to promote user experience, two V2X antennas adopt the disconnect-type to arrange, wherein first C-V2X antenna is mainly collected the antenna and arranges in the shark fin shell of roof, second C-V2X antenna arranges the front end at the car body for the diversity antenna. In a default state, a first C-V2X antenna in the shark fin shell is a main collection antenna and simultaneously supports transmitting signals and receiving signals, and a second C-V2X antenna at the front end of the shark fin shell is a diversity antenna and only supports receiving signals; a DPDT double-pole double-throw switch is arranged in the radio frequency communication module for switching the antennas, when the chip detects that the signal received by the second C-V2X antenna is stronger, the main radio frequency collecting channel is switched to the second C-V2X antenna at the front end of the vehicle body, namely the second C-V2X antenna is the main radio frequency collecting antenna at the moment, and the first C-V2X antenna in the shark fin shell is switched to a diversity antenna. Furthermore, the first C-V2X antenna inside the shark fin shell may cover the entire horizontal plane 360 degrees, with the emphasis tending to cover the area behind the vehicle; the second C-V2X antenna at the front end of the car body tends to cover the area in front of the car, so that the tandem combination greatly increases the coverage of the C-V2X antenna. The utility model discloses a disconnect-type C-V2X antenna can alleviate the pressure of shark fin inner space on the one hand, avoids influencing directionality and isolation performance between the C-V2X antenna, and on the other hand guarantees the performance of C-V2X antenna at each application scene to promote user experience and feel.

Drawings

Fig. 1 is a schematic structural diagram of a separated C-V2X antenna according to the present invention;

FIG. 2 is a schematic view of the shark fin according to the present invention shown in FIG. 1 with the outer shell removed;

fig. 3 is a partial enlarged view of a portion a of fig. 1;

fig. 4 is a partial enlarged view of fig. 1 at B;

fig. 5 is a schematic structural diagram of a second C-V2X antenna;

fig. 6 is a top view of a second C-V2X antenna;

description of reference numerals: the antenna comprises a vehicle body 1, a grid layer 101, a shark fin outer shell 2, a second C-V2X antenna 3, an antenna feed pin 301, an antenna housing 4 and a first C-V2X antenna 5.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the technical solution does not limit the scope of the present invention.

In the present invention, for the sake of clearer description, the following explanation is made: the terms "front end", "rear end", "front", "rear", "inner", "top", "lower end", and the like herein, refer to an orientation or positional relationship defined based on the drawings, and are used for clarity of description only, and do not indicate or imply that the structures or components referred to must have a particular orientation, be constructed in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for purposes of clarity and simplicity of description only and are not to be construed as indicating or implying a relative importance or quantity.

Referring to fig. 1 to 5, the present embodiment provides a separated C-V2X antenna, including a vehicle body 1, a shark fin housing 2 is disposed at a rear top of the vehicle body 1, a first C-V2X antenna 5 is disposed in the shark fin housing 2, a grid layer 101 is disposed at a front end of the vehicle body 1, a second C-V2X antenna 5 is disposed inside the grid layer 101, and an antenna cover 4 is sleeved outside the second C-V2X antenna 5.

In the embodiment, the frequency bands of the first C-V2X antenna 5 and the second C-V2X antenna 3 are both 5.905-5.925 GHz. The shark fin shell 2 is 160mm long, 60mm wide and 60mm high, the shark fin shell 2 is not too large in size, the appearance of an automobile is affected greatly, and the internal space pressure of the shark fin shell 2 can be well relieved by adopting a separated C-V2X antenna arrangement scheme.

Specifically, the first C-V2X antenna 5 is used for transmitting and receiving signals, the second C-V2X antenna 2 is used for receiving signals, the lower end of the second C-V2X antenna 2 is provided with an antenna feed pin, the first C-V2X antenna 5 covers the area behind the vehicle of the vehicle body, and the second C-V2X antenna 2 covers the area in front of the vehicle body. The two V2X antennas are arranged in a separated mode, wherein the first C-V2X antenna 5 is a main antenna set and is arranged in a shark fin shell of the roof of a vehicle, and the second C-V2X antenna 2 is a diversity antenna and is arranged at the front end of the vehicle body. In a default state, a first C-V2X antenna 5 in the shark fin shell 2 is a main set antenna and simultaneously supports transmitting signals and receiving signals, and a second C-V2X antenna 3 at the front end of the vehicle body 1 is a diversity antenna and only supports receiving signals; a DPDT double-pole double-throw switch is arranged in the radio frequency communication module for switching the antennas, when the chip detects that the signal received by the second C-V2X antenna 3 is stronger, the main radio frequency collecting channel is switched to the second C-V2X antenna 3 at the front end of the car body 1, namely, the second C-V2X antenna 3 is the main radio frequency collecting antenna, and the first C-V2X antenna 5 in the shark fin shell 2 is switched to be the diversity antenna.

To sum up, the application the technical scheme of the utility model, following beneficial effect has: the utility model discloses a disconnect-type C-V2X antenna, the coverage that vehicle antenna has increased to rationally arrange first C-V2X antenna 5 and second C-V2X antenna 3 to promote user experience, and the whole horizontal plane can be covered by 360 degrees to first C-V2X antenna 5 in shark fin shell 2, and the key tendency is to cover the car rear region; the second C-V2X antenna 3 at the front end of the car body 1 is focused on covering the area in front of the car, so that the combination in tandem greatly increases the coverage of the C-V2X antenna. The utility model discloses a disconnect-type C-V2X antenna can alleviate the pressure of shark fin inner space on the one hand, avoids influencing directionality and isolation performance between the C-V2X antenna, and on the other hand guarantees the performance of C-V2X antenna at each application scene to promote user experience and feel.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A split C-V2X antenna, comprising a vehicle body (1), characterized in that: the novel multifunctional car is characterized in that a shark fin outer shell (2) is arranged at the top of the rear portion of the car body (1), a first C-V2X antenna (5) is arranged in the shark fin outer shell (2), a grid layer (101) is arranged at the front end of the car body (1), a second C-V2X antenna (3) is arranged on the inner side of the grid layer (101), and an antenna housing (4) is sleeved outside the second C-V2X antenna (3).

2. The split C-V2X antenna of claim 1, wherein: the frequency bands of the first C-V2X antenna (5) and the second C-V2X antenna (3) are both 5.905-5.925 GHz.

3. The split C-V2X antenna of claim 2, wherein: the shark fin shell (2) is 160mm long, 60mm wide and 60mm high.

4. The split C-V2X antenna of claim 1, wherein: the first C-V2X antenna (5) is used for transmitting and receiving signals.

5. The split C-V2X antenna according to claim 4, wherein: the second C-V2X antenna (3) is used for receiving signals.

6. The split C-V2X antenna of claim 5, wherein: and an antenna feed pin (301) is arranged at the lower end of the second C-V2X antenna (3).

7. The split C-V2X antenna according to any one of claims 1-6, wherein: the first C-V2X antenna (5) covers the area behind the vehicle body (1), and the second C-V2X antenna (3) covers the area in front of the vehicle body (1).