CN216354760U - Vehicle-mounted antenna and vehicle tail door - Google Patents

Abstract

The utility model relates to a vehicle antenna and rear of a vehicle door relates to autopilot and antenna technical field. This vehicle antenna installs in the vortex cover that sets up on the rear of a vehicle door, include: the antenna comprises a fixed seat, a cantilever bracket and an antenna body; the tail gate comprises an installation part, the turbulence cover is connected to the outer wall surface of the installation part, and the turbulence cover and the installation part are enclosed to form an installation cavity; the fixing base is connected in the internal face of installation department, and the cantilever bracket includes the bracket main part, and the both ends of bracket main part are stiff end and free end respectively, and the stiff end of bracket main part is connected in the fixing base, and the bracket main part stretches into the installation intracavity, and the antenna body is fixed in the free end of bracket main part. The vehicle-mounted antenna has the advantages of good installation environment, high reliability, flexible installation position and small limitation, and can meet the requirement of high positioning precision.

Description

Vehicle-mounted antenna and vehicle tail door

Technical Field

The disclosure relates to the technical field of automatic driving and antennas, in particular to a vehicle-mounted antenna and a vehicle tail door.

Background

The Global Positioning System (GPS) can detect the current position of the GPS receiver itself with high accuracy and in real time. Therefore, GPS is mainly used for measuring the current position of a mobile object such as an automobile, an airplane, or a mobile phone by mounting a GPS receiver on the mobile object, and is also widely used for an automobile that is automatically driven.

At present, GPS receivers suitable for mounting on automobiles are rapidly spreading. The GPS receiver comprises a GPS vehicle-mounted antenna, at present, the GPS vehicle-mounted antenna is usually arranged on the car roof, wherein the car roof of some cars is provided with a shark fin structure, and the GPS vehicle-mounted antenna is arranged in the shark fin; some automobiles do not have a "shark fin" on the roof, and the GPS car antenna is equipped with an antenna box having an IP rating (waterproof, dustproof rating) and mounted on the roof.

However, since the roof is exposed to the outside environment, the mounting environment of the GPS vehicle-mounted antenna is poor, the reliability is low, and there is a mounting limitation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vehicle antenna and rear of a vehicle door, vehicle antenna install in the vortex cover of rear of a vehicle door, and the reliability is high, and the mounted position is nimble, and the limitation is little, can satisfy high positioning accuracy demand.

On the one hand, this disclosure provides a vehicle antenna installs in the vortex cover that sets up on the rear of a vehicle door, and this vehicle antenna includes: the antenna comprises a fixed seat, a cantilever bracket and an antenna body;

the tail gate comprises an installation part, the turbulence cover is connected to the outer wall surface of the installation part, and the turbulence cover and the installation part are enclosed to form an installation cavity; the fixing base is connected in the internal face of installation department, and the cantilever bracket includes the bracket main part, and the both ends of bracket main part are stiff end and free end respectively, and the stiff end of bracket main part is connected in the fixing base, and the bracket main part stretches into the installation intracavity, and the antenna body is fixed in the free end of bracket main part.

The utility model provides a vehicle antenna is through installing its installation department at the rear of a vehicle door to make it stretch into the installation intracavity that encloses between vortex cover and the installation department, in order to install vehicle antenna in vortex cover, the installation environment in the vortex cover is good, vehicle antenna's reliability is high, and the space in the vortex cover is big, and vehicle antenna's setting is more nimble, can satisfy the installation demand of vehicle antenna more than two, can improve vehicle antenna's positioning accuracy. In addition, the wiring distance of the signal line of the vehicle-mounted antenna is short, the signal gain value can be improved, and the signal processing capacity of the vehicle-mounted antenna is improved. Wherein, on-vehicle antenna is through connecting the internal face at the installation department with the fixing base, and the stiff end of the bracket main part of cantilever bracket is connected in the fixing base, and the bracket main part stretches into the vortex cover in, is fixed in the free end that is located the vortex cover of bracket main part with the antenna body to be fixed in the installation department with on-vehicle antenna, and make the antenna body stretch into in the vortex cover.

In one possible embodiment, the bracket main body comprises a supporting section and a guiding section which are connected, the fixed end of the bracket main body is the end of the supporting section, which is far away from the guiding section, and the free end of the bracket main body is the end of the guiding section, which is far away from the supporting section;

wherein, an included angle is formed between the guide section and the support section, and the guide section extends along the width direction of the tail gate.

In one possible embodiment, the guide section projects laterally in the width direction of the tailgate.

In a possible embodiment, the free end of the bracket main body is provided with a bearing part, the bearing part is provided with a bearing surface, the bearing surface is a side surface of the bearing part, which is far away from the ground, and the antenna body is arranged on the bearing surface.

In a possible implementation manner, the vehicle-mounted antenna further comprises a supporting plate, the supporting plate is installed on the supporting surface, and the antenna body is attached to one side surface of the supporting plate, which is far away from the supporting part.

In one possible embodiment, the support plate is a metal plate, and the cross-sectional area of the support plate is larger than the cross-sectional area of the antenna body.

In a possible embodiment, the supporting portion includes an outer ring portion, the region enclosed by the outer ring portion is a hollow region, and the edge of the supporting plate is overlapped with the outer ring portion.

In one possible embodiment, an antenna body includes a circuit board assembly, an antenna assembly, and a shield;

the circuit board assembly is attached to the supporting plate, the antenna assembly is connected to one side surface of the circuit board assembly, which is far away from the supporting plate, the shielding cover is connected to one side surface of the circuit board assembly, which faces the supporting part, and the shielding cover is located in the hollow area.

In one possible embodiment, the circuit board assembly includes a main board attached to the support board and at least one extension board connected to the main board, the extension board is connected perpendicularly to an edge of the main board, and the extension board surrounds a peripheral side of the main board.

In one possible embodiment, the antenna assembly comprises at least a first ceramic piece and a second ceramic piece, and the first ceramic piece and the second ceramic piece are stacked along a direction perpendicular to the plate surface of the supporting plate.

In a possible embodiment, the mounting portion is provided with at least one mounting hole, the fixed end of the bracket main body is connected to the fixing seat at a position corresponding to the mounting hole, and two ends of the fixing seat are respectively connected to positions on the inner wall surface of the mounting portion at two sides of the mounting hole.

In a possible embodiment, a positioning groove is formed in the fixing seat corresponding to the mounting hole, a positioning plate is arranged at the fixed end of the bracket main body, and the positioning plate is clamped into the positioning groove and fixedly connected with the fixing seat.

In a possible implementation mode, the notch of the positioning groove is located on one side of the fixing seat, which is far away from the mounting portion, the surface of one side of the positioning plate, which faces the free end, abuts against the bottom of the positioning groove, an avoiding notch is formed in the bottom of the positioning groove, and the bracket main body penetrates through the avoiding notch.

In one possible embodiment, the positioning groove is communicated with one side end surface of the fixed seat and forms an insertion opening, and the positioning plate is inserted into the positioning groove from the insertion opening.

In another aspect, the present disclosure provides a tailgate comprising a door panel, a spoiler cover, and at least one vehicle antenna as described above;

the door plant includes the installation department, and the vortex cover is connected in the outer wall of installation department, and vortex cover and installation department enclose to close and form the installation cavity, and vehicle antenna installs in the internal face of installation department and stretches into the installation cavity.

The utility model provides a rear of a vehicle door, vortex cover undetachable connect in the outer wall of the installation department of door plant, through the internal face at the installation department with on-vehicle antenna's fixing base connection, the stiff end of the bracket main part of cantilever bracket is connected in the fixing base, and the bracket main part stretches into in the vortex cover, is fixed in the antenna body the free end that is located vortex cover of bracket main part to be fixed in the installation department with on-vehicle antenna, and make the antenna body stretch into in the vortex cover. The installation environment in the vortex cover is good, the reliability of the vehicle-mounted antenna is high, the space in the vortex cover is large, the vehicle-mounted antenna is more flexible to set, the installation requirements of more than two vehicle-mounted antennas can be met, and the positioning accuracy of the vehicle-mounted antenna can be improved. In addition, the wiring distance of the signal line of the vehicle-mounted antenna is short, the signal gain value can be improved, and the signal processing capacity of the vehicle-mounted antenna is improved.

In one possible embodiment, the number of the vehicle-mounted antennas is two, and the two vehicle-mounted antennas are respectively close to two sides of the door panel in the width direction.

In one possible implementation, the antenna bodies of the two vehicle-mounted antennas are symmetrical left and right with the central axis of the door panel as a central line.

In one possible embodiment, the number of the vehicle-mounted antennas is three, and the three vehicle-mounted antennas are arranged at intervals along the width direction of the door panel.

In one possible embodiment, the spacing between the antenna bodies of the two vehicle antennas is greater than or equal to 60 cm.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:

fig. 1 is a schematic structural view of a tailgate provided in an embodiment of the disclosure;

FIG. 2 is a partial exploded view of the tailgate of FIG. 1 without the vehicle antenna installed;

FIG. 3 is an inside partial view of the tailgate of FIG. 1 without the vehicle antenna installed;

FIG. 4 is a partial exploded view of the tailgate of the vehicle mounted antenna of FIG. 1;

FIG. 5 is an inside partial view of the tailgate of FIG. 1 with the vehicle antenna installed;

fig. 6 is a front view of a vehicle antenna provided in an embodiment of the present disclosure;

FIG. 7 is a schematic view of the cantilever bracket of FIG. 6;

FIG. 8 is a schematic structural view of the fixing base in FIG. 6;

FIG. 9 is an exploded view of the cantilever bracket and anchor block assembly of FIG. 6;

FIG. 10 is a schematic view of the vehicle antenna and the door panel assembled together;

fig. 11 is a schematic structural diagram of an antenna body according to an embodiment of the present disclosure;

FIG. 12 is an exploded view of FIG. 11;

FIG. 13 is an exploded view of FIG. 6;

fig. 14 is a bottom view of fig. 6.

Description of reference numerals:

1-vehicle tail gate;

100-a vehicle antenna; 200-a door panel; 300-a flow disturbing cover;

110-a fixed seat; 120-cantilever bracket; 130-an antenna body; 140-a support plate; 210-a rear window frame; 220-trunk lid; 310-high mounted stop lamp;

111-a positioning slot; 121-a carrier body; 122-a support; 122 a-a bearing surface; 123-positioning plate; 131-a circuit board assembly; 132-an antenna component; 133-a shield can; 134-signal line; 211-a mounting portion;

1111-avoidance notch; 1112-an insertion opening; 1211-support section; 1212-a guide section; 1221-outer ring section; 1311-main board; 1312-an extension plate; 1321-a first ceramic sheet; 1322-a second ceramic plate; 1323-fixation holes; 1324-a fastener; 2111-mounting holes;

a-a communicating hole; b-positioning holes; c-dorsal mother.

Detailed Description

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

The GPS receiver is generally mounted on a mobile object such as an automobile, an airplane, or a mobile phone, and detects the position of the GPS receiver in real time by GPS to measure the current position of the mobile object on which the GPS receiver is mounted. Taking a GPS receiver mounted on an automobile as an example, a GPS antenna is generally mounted on the automobile for receiving a GPS signal and transmitting the received signal to the GPS receiver so as to determine the spatial position of the automobile.

In the related art, the GPS antenna is usually installed at an external position of a vehicle body such as a roof of the vehicle, so that the GPS antenna can receive a GPS signal, thereby preventing a vehicle body structure from affecting signal reception. Taking passenger cars such as saloon cars and sport utility vehicles (SUVs for short), the roofs of some vehicles are designed with a cover body in the shape of a shark fin, and a GPS antenna is generally mounted in the shark fin. For vehicles without a "shark fin" design on the roof, an antenna box with IP rating (waterproof, dustproof rating) will typically be designed for the GPS antenna, which is sealed within the antenna box, which is mounted on the roof of the vehicle.

However, because the roof of the vehicle is exposed to the external environment, the environment has more moisture and dust, and the installation environment of the GPS antenna is poor and has low reliability. For vehicles without shark fins, the antenna box mounted on the roof of the vehicle can increase the wind resistance of the vehicle and influence the running speed of the vehicle.

In addition, for a signal line connected between the GPS antenna and the GPS receiver, since the signal line needs to extend from the roof of the vehicle into the vehicle, the length of the signal line is long, and the resistance of the signal line itself affects the signal gain value, which weakens the signal receiving capability of the GPS antenna.

In addition, for a vehicle with a high requirement for positioning accuracy, for example, a Driving mode above L4 defined in an Advanced Driving Assistance System (ADAS), that is, a highly automated or even fully automated Driving operation can be realized by means of an unmanned System, at this time, dual antennas are generally required for positioning, two GPS antennas need to be installed on both sides of a vehicle body, and only 1 GPS antenna can be installed in a "shark fin" of a vehicle roof, which cannot meet the arrangement requirement of the dual antennas.

In view of the above, the embodiment of the present disclosure provides a vehicle-mounted antenna and a vehicle tail gate, which are applied to the field of automatic driving, and in particular, can be applied to the field of vehicle-mounted antennas of automatic driving vehicles. The utility model provides a vehicle antenna and rear of a vehicle door, the vortex cover that sets up on according to the rear of a vehicle door of vehicle matches the vehicle antenna of design, and vehicle antenna fixed mounting is on the rear of a vehicle door, and can stretch into in the vortex cover, and the installation environment in the vortex cover is good, and vehicle antenna reliability is high, and the installation limitation is little, can satisfy the dual antenna and lay the demand.

The tailgate of the present embodiment may be applied to a passenger car such as a sedan car or an SUV equipped with a spoiler, or may be applied to other types of vehicles such as a racing car, which is not limited in the present embodiment.

Fig. 1 is a schematic structural view of a tailgate provided in an embodiment of the disclosure; FIG. 2 is a partial exploded view of the tailgate of FIG. 1 without the vehicle antenna installed; fig. 3 is a partial view of the inside of the tailgate of fig. 1 without the vehicle antenna installed.

Referring to fig. 1, the tailgate 1 includes a door panel 200 and a spoiler 300, the door panel 200 may be of an integrally formed structure, and illustratively, the door panel 200 may include a rear window frame 210 and a trunk lid 220, the rear window frame 210 encloses an area for installing a rear window, the rear window frame 210 may support and fix the rear window, the trunk lid 220 is located at a bottom side of the rear window frame 210, and the trunk lid 220 is covered on a trunk of a vehicle body.

Referring to fig. 2, the top of the rear window frame 210, that is, the side of the rear window frame 210 connected to the roof, has an installation portion 211, where the installation portion 211 is a part of the rear window frame 210, and meanwhile, the installation portion 211 can be used as an installation base of the spoiler cover 300, the spoiler cover 300 is installed on the outer wall surface of the installation portion 211, and the spoiler cover 300 and the outer wall surface of the installation portion 211 can together enclose an installation cavity, in which a vehicle-mounted antenna (not shown) can be installed, and can also be used for routing in the vehicle.

It should be noted that the spoiler cover 300 is a spoiler of a vehicle, the spoiler cover 300 is an additional plate installed above a parking space of the vehicle, the spoiler cover 300 is also called an automobile tail fin, and an outer wall surface of the spoiler cover 300 forms a spoiler surface which mainly serves to reduce a lift force at the tail of the vehicle and ensure high-speed stability of the vehicle. Since the spoiler and the mounting portion 211 form a mounting cavity therebetween, the spoiler is defined as the spoiler cover 300 for convenience of explaining the function and function of the mounting cavity formed inside the spoiler. For convenience of description, the installation cavity enclosed between the spoiler cover 300 and the installation portion 211 is described as the spoiler cover 300, and will not be described in detail.

The inner wall surface of the mounting portion 211 is a surface of the mounting portion 211 facing the inside of the vehicle, the outer wall surface of the mounting portion 211 is a surface of the mounting portion 211 facing the outside of the vehicle, that is, the outer wall surface of the mounting portion 211 is a surface of the mounting portion 211 facing the rear of the vehicle, and the spoiler cover 300 is mounted on the outer wall surface of the mounting portion 211. The inner wall surface of the spoiler cover 300 is a side wall surface of the spoiler cover 300 facing inward to form an installation cavity, and the outer wall surface of the spoiler cover 300 is opposite to the inner wall surface of the spoiler cover 300 and is a side wall surface of the spoiler cover 300 facing outward.

In this embodiment, utilize the installation cavity that forms between vortex cover 300 and the installation department 211 of rear of a vehicle door 1, install vehicle antenna in the installation cavity, compare in installing vehicle antenna at the roof, be confined space in the installation cavity that forms between vortex cover 300 and the installation department 211, and protected by vortex cover 300, vortex cover 300 is inside to form dry space, and the antenna space that is located vortex cover 300 does not receive external environment to influence, and reliability and security are high.

Moreover, the space in the spoiler cover 300 is sufficient, which facilitates flexible arrangement of the vehicle-mounted antennas, for example, two vehicle-mounted antennas may be installed in the spoiler cover 300 to meet the positioning requirement of the driving mode above L4 defined in ADAS.

In addition, since the spoiler cover 300 is located at the position of the tail of the vehicle close to the roof, a circuit can be arranged in the spoiler cover 300 to be electrically connected with relevant parts in the vehicle, as shown in fig. 2, taking a high mount stop lamp 310 installed on the spoiler cover 300 for warning as an example, an electric wire for controlling the high mount stop lamp 310 extends into the spoiler cover 300, is connected with the high mount stop lamp 310, and the electric wire connected with the high mount stop lamp 310 can be wired into a trunk, and then is electrically connected with relevant control systems in the vehicle through devices in the trunk, or is wired into a relevant control system through the trunk.

Thus, the signal line of the vehicle-mounted antenna installed in the spoiler cover 300 can also be wired to the trunk through the wiring structure in the spoiler cover 300, and is electrically connected with the GPS receiver through a device in the trunk, or is wired to be connected with the GPS receiver through the trunk, and the GPS receiver is, for example, a vehicle-mounted navigation terminal.

Compared with a GPS antenna installed on the roof, the signal line of the GPS antenna needs to extend from the roof to the inside of the trunk along the vehicle body and then is electrically connected with the GPS receiver through the trunk wiring, the wiring of the signal line is long, and the vehicle-mounted antenna is installed in the spoiler cover 300, so that the wiring length of the signal line can be obviously reduced.

Referring to fig. 1, in practical applications, the spoiler cover 300 is usually a plastic member made of plastic particles, so that the spoiler cover 300 covering the exterior of the vehicle antenna has no significant influence on the signal gain value of the vehicle antenna. In some cases, in order to improve the aesthetic property of the entire vehicle, the outer wall surface of the spoiler cover 300 is coated with a layer of metal vehicle paint which is the same as the vehicle body, and although the metal vehicle paint has a weak influence on the signal gain value of the vehicle-mounted antenna, the length of the signal line is greatly shortened, so that the signal gain value of the GPS receiver is beneficial on the whole, and therefore, the signal receiving capability of the vehicle-mounted antenna is improved.

As shown in fig. 1 and 2, fig. 2 shows a structure in which the spoiler 300 is separated from the door panel 200 of the tailgate 1, however, in this embodiment, mainly for the case where the spoiler 300 is not detachable, the spoiler 300 is installed on the installation portion 211 of the door panel 200 when the tailgate 1 leaves the factory, for example, the spoiler 300 is integrally formed on the tailgate 1, or the spoiler 300 is fixedly connected to the door panel 200 by means of bonding, welding, or the like.

Referring to fig. 3, the mounting portion 211 of the tailgate 1 is generally provided with a plurality of mounting holes 2111, and the wires to be connected to the spoiler 300 may be routed from the inner wall surface of the tailgate 1 through the mounting holes 2111 into the spoiler 300, or a part of the mounting holes 2111 may be used for mounting other components or as an escape opening for maintenance.

Since the spoiler cover 300 is non-detachably mounted on the tailgate 1, when the vehicle-mounted antenna 100 is mounted, the vehicle-mounted antenna needs to be extended into the spoiler cover 300 from the inner side of the tailgate 1 (the side of the tailgate 1 facing the vehicle interior), and then the vehicle-mounted antenna is fixed on the mounting portion 211 so as to be mounted in the mounting cavity defined between the spoiler cover 300 and the mounting portion 211.

FIG. 4 is a partial exploded view of the tailgate of the vehicle mounted antenna of FIG. 1; fig. 5 is a partial view of the inside of the tailgate of fig. 1 with the vehicle antenna installed. Referring to fig. 4 and 5, in the present embodiment, the vehicle-mounted antenna 100 is mounted in the spoiler cover 300 by using the mounting hole 2111 reserved in the mounting portion 211 of the tailgate 1, penetrating the vehicle-mounted antenna 100 through the mounting hole 2111 from the inner wall surface of the mounting portion 211, and extending the vehicle-mounted antenna 100 into the spoiler cover 300, and fixing the vehicle-mounted antenna 100 on the inner wall surface of the mounting portion 211.

In the case that two vehicle-mounted antennas 100 are installed in the spoiler cover 300, as shown in fig. 4 and 5, two installation holes 2111 on the installation portion 211, which are respectively close to two sides of the door panel 200 in the width direction, may be used, the two vehicle-mounted antennas 100 respectively penetrate through the two installation holes 2111 and extend into the spoiler cover 300, and the two vehicle-mounted antennas 100 are respectively connected and fixed with the area around the two installation holes 2111 on the inner wall surface of the installation portion 211.

In practical application, two mounting holes 2111 with a proper distance can be selected from the mounting portion 211 according to the positioning requirements of the vehicle, and are used as penetrating holes of the two vehicle-mounted antennas 100, wherein the penetrating holes penetrate into the spoiler 300, and the two mounting holes 2111 are respectively used as the base positions of the two vehicle-mounted antennas 100.

Note that the width direction of the door panel 200 is the width direction of the vehicle, and as shown in fig. 2 and 3, the plurality of mounting holes 2111 formed in the mounting portion 211 of the door panel 200 are usually provided at intervals along the width direction of the vehicle of the door panel 200 so as to meet the routing requirements or other requirements at different portions in the vehicle width direction. The mounting holes 2111 arranged in this way can also meet the mounting requirements of more than two vehicle-mounted antennas 100, ensure that the vehicle-mounted antennas 100 have enough space in the width direction of the vehicle, and meet the positioning requirements of the vehicle.

Taking two vehicle-mounted antennas 100 as an example, the position of the vehicle at the moment can be located through any one of the vehicle-mounted antennas 100, the two vehicle-mounted antennas 100 are arranged at intervals along the width direction of the vehicle, the position of the tail of the vehicle at the moment can be located through the joint location of the two vehicle-mounted antennas 100, and the parameters such as the deflection angle, the deflection speed and the like of the vehicle at the moment can be located according to the position, so that the accurate location of the vehicle is achieved.

In some embodiments, more vehicle-mounted antennas 100 are disposed in the spoiler cover 300 at intervals along the width direction of the door panel 200, for example, three vehicle-mounted antennas 100 are disposed in the spoiler cover 300 at intervals, and the three vehicle-mounted antennas 100 respectively pass through three mounting holes 2111 disposed in the mounting portion 211 at intervals and extend into the spoiler cover 300. Through setting up three vehicle antenna 100, three vehicle antenna 100 all is connected with the GPS receiver electricity, on the basis of two vehicle antenna 100 joint localization, redundant vehicle antenna 100, if one of them vehicle antenna 100 can't normally work, then rely on two other vehicle antenna 100, still can realize two antenna joint localization, guarantee to satisfy the location demand of the driving mode more than L4 in the ADAS.

The structure of the vehicle-mounted antenna 100 will be described in detail below with reference to the tailgate 1.

Fig. 6 is a front view of a vehicle antenna provided in an embodiment of the present disclosure; FIG. 7 is a schematic view of the cantilever bracket of FIG. 6; FIG. 8 is a schematic structural view of the fixing base in FIG. 6; FIG. 9 is an exploded view of the cantilever bracket and anchor block assembly of FIG. 6; FIG. 10 is a schematic view of the assembly of the vehicle antenna and the door panel.

Referring to fig. 6, in order to extend the vehicle antenna 100 into the spoiler 300 from the inner side of the tailgate 1 and fix the vehicle antenna 100 to the inner wall surface of the mounting portion 211, in the present embodiment, the vehicle antenna 100 may include an antenna body 130, a cantilever bracket 120, and a fixing base 110. The antenna body 130 is used for receiving a GPS signal and is fixed on the cantilever bracket 120, the cantilever bracket 120 can penetrate through the mounting hole 2111 in the mounting portion 211 and extend into the spoiler cover 300, the cantilever bracket 120 is connected with the fixing seat 110, and the fixing seat 110 is used for being connected to the inner wall surface of the mounting portion 211 so as to position the cantilever bracket 120 in the spoiler cover 300 and position the antenna body 130.

As shown in fig. 4 to 6, when the vehicle-mounted antenna 100 is assembled on the tailgate 1, the antenna body 130 is first fixed to the cantilever bracket 120, and the cantilever bracket 120 extends into the spoiler cover 300 through the mounting hole 2111 from the inner wall surface of the mounting portion 211, so that the antenna body 130 extends into the spoiler cover 300. By adjusting the azimuth angle of the cantilever bracket 120, the antenna body 130 faces the side of the spoiler 300 away from the ground, that is, the antenna body 130 faces the sky, so as to ensure that the antenna body 130 has a proper angle of view (FOV). Then, the fixing base 110 is connected to the cantilever bracket 120, and the fixing base 110 is fixedly connected to the inner wall surface of the mounting portion 211, so that the antenna body 130 is positioned in the spoiler cover 300.

In addition, for the case where two vehicle-mounted antennas 100 are provided in the spoiler cover 300, taking the vehicle-mounted antenna 100 as a high-precision antenna as an example, the static (the stationary state of the vehicle-mounted antenna 100) positioning precision of the vehicle-mounted antenna 100 is within a range of 10cm, and the dynamic (the moving state of the vehicle-mounted antenna 100) positioning precision of the vehicle-mounted antenna 100 is within a range of 30cm, the distance between the antenna bodies 130 of the two vehicle-mounted antennas 100 may be greater than or equal to 60cm, for example, the distance between the antenna bodies 130 of the two vehicle-mounted antennas 100 is 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm, or 100cm, and the like, and the distance may be specifically determined according to the distance between the mounting holes 2111 on the mounting portion 211 of the tailgate 1, and this embodiment is not particularly limited.

As a specific implementation manner, the antenna bodies 130 of the two vehicle-mounted antennas 100 may be symmetric to each other about the central axis of the door panel 200 of the tailgate 1, and as shown in fig. 3 and 4, in practical applications, each of the mounting holes 2111 formed in the mounting portion 211 of the tailgate 1 may include two mounting holes 2111 symmetric to the central axis of the tailgate 1, in this embodiment, the two vehicle-mounted antennas 100 arranged at intervals in the width direction of the tailgate 1 may respectively penetrate through the two symmetric mounting holes 2111 and extend into the spoiler 300, and the cantilever brackets 120 of the vehicle-mounted antennas 100 are adjusted to make the antenna bodies 130 of the two vehicle-mounted antennas 100 symmetric to the central axis of the tailgate 1, so that the distances between the two antenna bodies 130 and the central line of the vehicle are equal, and the precision of the joint positioning is higher.

Referring to fig. 7, the cantilever bracket 120 includes a bracket body 121, and for convenience of description, the present embodiment defines both ends of the bracket body 121 as a fixed end and a free end, respectively. The fixed end of the bracket body 121 is the end of the bracket body 121 connected to the fixing base 110, and since the fixing base 110 is connected to the inner wall surface of the mounting portion 211, the fixed end of the bracket body 121 is usually close to the plane of the mounting portion 211. The free end of the bracket main body 121 is the other end opposite to the fixed end thereof, the bracket main body 121 passes through the mounting hole 2111 on the mounting portion 211 and extends into the spoiler cover 300, the free end thereof is located in the spoiler cover 300, and the antenna body 130 is fixed at the free end of the bracket main body 121.

As for the connection between the bracket body 121 and the fixing base 110, the fixed end of the bracket body 121 may be connected to the middle of the fixing base 110 in the length direction, and since the bracket body 121 passes through the mounting hole 2111 of the mounting portion 211 and extends into the spoiler, the connection position between the fixed end of the bracket body 121 and the fixing base 110 may correspond to the position of the mounting hole 2111 of the mounting portion 211. Further, both ends of the fixing base 110 in the longitudinal direction are located on both sides of the mounting hole 2111, and both ends of the fixing base 110 are connected to the inner wall surface of the mounting portion 211 at positions on both sides of the mounting hole 2111.

The bracket main body 121 may include a support section 1211 and a guide section 1212 connected together, the support section 1211 is close to the mounting portion 211, a fixed end of the bracket main body 121 is an end of the support section 1211 facing away from the guide section 1212, and a free end of the bracket main body 121 is an end of the guide section 1212 facing away from the support section 1211. The support section 1211 is used for being connected with the fixing base 110, and plays a main supporting role for the whole of the bracket main body 121 and the antenna body 130, the antenna body 130 is connected to the end of the guide section 1212, and the guide section 1212 is used for guiding and positioning the position of the antenna body 130 in the spoiler cover 300.

The guide section 1212 and the support section 1211 form an included angle therebetween, and the support section 1211 is mainly used for extending the cantilever bracket 120 into the spoiler cover 300, so that the support section 1211 can extend approximately vertically into the spoiler cover 300 from the mounting hole 2111 of the mounting portion 211, for example, the support section 1211 of the cantilever bracket 120 is perpendicular to the fixing base 110 connected to the inner wall surface of the mounting portion 211. The width space (dimension in the longitudinal direction of the vehicle) in the spoiler cover 300 is limited, so that the guide section 1212 mainly extends in the longitudinal direction (width direction of the tailgate 1) of the spoiler cover 300, for example, the guide section 1212 extends substantially in the direction perpendicular to the support section 1211, and thus, in the case where two or more vehicle-mounted antennas 100 are spaced in the spoiler cover 300, it is also convenient to control the distance between the vehicle-mounted antennas 100.

As a specific embodiment, as shown in fig. 4 and 7, the guide section 1212 of the bracket main body 121 may protrude to the side in the longitudinal direction of the spoiler 300, that is, the guide section 1212 protrudes to the side in the width direction of the tailgate 1. Continuing to take the example that two vehicle-mounted antennas 100 are arranged in the spoiler cover 300 at intervals along the length direction thereof, the guide sections 1212 of the bracket main bodies 121 of the respective vehicle-mounted antennas 100 respectively extend out to both sides in the width direction of the vehicle, so that an enough distance is formed between the two antenna bodies 130, and the joint positioning accuracy of the two vehicle-mounted antennas 100 is improved.

In the case of ensuring a sufficient distance between the antenna bodies 130 of the two vehicle-mounted antennas 100, in the bracket main bodies 121 of the two vehicle-mounted antennas 100, the guide section 1212 of one may protrude to the lateral side of the width direction of the tailgate 1, and the other may protrude to the center of the width direction of the tailgate 1; alternatively, the guide sections 1212 of both the tray main bodies 121 may extend toward the center in the width direction of the tailgate 1.

In addition, referring to fig. 7, the free end of the bracket main body 121, that is, the end of the guide section 1212 facing away from the support section 1211 is provided with a supporting portion 122, the supporting portion 122 matches with the shape and size of the antenna body 130, and the antenna body 130 is fixed on the supporting portion 122. One side surface of the supporting portion 122 faces the ground, the other side surface of the supporting portion 122 facing away from the ground is a supporting surface 122a, and the antenna body 130 is fixed on the supporting surface 122a of the supporting portion 122, so that the antenna body 130 can receive the GPS signal.

As for the connection between the cantilever bracket 120 and the fixing base 110, as shown in fig. 7 and 8, a positioning groove 111 may be formed at a position corresponding to the mounting hole 2111 on the fixing base 110, a positioning plate 123 may be formed at the fixing end of the bracket main body 121, and as shown in fig. 9, the positioning plate 123 may be snapped into the positioning groove 111 to connect the bracket main body 121 to the fixing base 110.

In addition, in order to firmly connect the cantilever bracket 120 and the fixed base 110, the positioning plate 123 may be fixedly connected to the bottom of the positioning groove 111 after the positioning plate 123 is inserted into the positioning groove 111, for example, communication holes a are provided at four corners of the positioning plate 123, positioning holes b are provided at the bottom of the positioning groove 111, the positioning holes b correspond to the communication holes a one-to-one, locking members such as screws or bolts are inserted into the communication holes a and the positioning holes b, and the positioning plate 123 is mechanically fixed in the positioning groove 111.

Because cantilever support wholly is located one side of fixing base 110 towards vortex cover 300, deviate from in order to prevent cantilever support from fixing base 110's constant head tank 111, can set up the notch of constant head tank 111 in one side that deviates from installation department 211 of fixing base 110, the tank bottom of constant head tank 111 is formed to the side surface of the internal wall face that is close to installation department 211 of constant head tank 111, the tank bottom at constant head tank 111 is supported to the side surface of locating plate 123 towards the free end of bracket main part 121, it is spacing to carry out cantilever bracket 120, can avoid cantilever bracket 120 to deviate from in the vortex cover 300.

As shown in fig. 9, since the bottom of the positioning slot 111 is located on the side of the positioning plate 123 facing the bracket main body 121, in order to avoid the bracket main body 121, an avoiding notch 1111 is formed at the bottom of the positioning slot 111, the avoiding notch 1111 corresponds to the bracket main body 121, and the bracket main body 121 passes through the avoiding notch 1111 and extends into the spoiler cover 300.

Furthermore, when the cantilever bracket 120 and the fixed base 110 are assembled, since the positioning plate 123 of the cantilever bracket 120 is located on the side of the fixed base 110 facing the mounting portion 211, in order to insert the positioning plate 123 into the positioning groove 111 of the fixed base 110, the positioning groove 111 communicates with one side end surface of the fixed base 110 in the insertion direction of the positioning plate 123, an insertion opening 1112 is formed on the side end surface of the fixed base 110, and the positioning plate 123 is inserted into the positioning groove 111 from the insertion opening 1112.

For example, referring to fig. 9, since both ends of the fixing base 110 in the longitudinal direction are connected to the inner wall surface of the mounting portion 211, the insertion opening 1112 is not easily opened at both ends of the fixing base 110 in the longitudinal direction, and thus the insertion opening 1112 can be opened at one end surface of the fixing base 110 in the width direction. The positioning plate 123 of the cantilever bracket 120 is inserted into the positioning groove 111 from the insertion opening 1112 along the width direction of the fixing base 110.

As for the connection between the fixing base 110 and the inner wall surface of the mounting portion 211, referring to fig. 9 and 10, as a specific embodiment, the inner wall surface of the mounting portion 211 has positioning holes b at positions on both sides of the mounting hole 2111, the fixing base 110 has communication holes a at both ends in the longitudinal direction, the communication holes a correspond to the positioning holes b, and the fixing base 110 is mechanically connected to the mounting portion 211 by inserting locking members such as bolts or screws into the communication holes a and the positioning holes b.

Referring to fig. 9, in order to prevent the fixing base 110 from loosening, a back nut c may be previously provided on a side of the fixing base 110 facing the mounting portion 211, the back nut c may be bonded to a portion corresponding to each of the two communication holes a, a bolt may be fastened and fixed by passing through the rear line through the back nut c, and a nut may be further fastened to the bolt to prevent the nut from loosening.

Fig. 11 is a schematic structural diagram of an antenna body according to an embodiment of the present disclosure; FIG. 12 is an exploded view of FIG. 11; FIG. 13 is an exploded view of FIG. 6; fig. 14 is a bottom view of fig. 6.

Referring to fig. 11 and 12, in the present embodiment, the antenna body 130 includes an antenna assembly 132, a circuit board assembly 131, and a shield case 133, and the antenna assembly 132 and the shield case 133 are connected to both side surfaces of the circuit board assembly 131, respectively. Referring to fig. 6, the circuit board assembly 131 is used to be fixedly connected to the supporting portion 122 of the cantilever bracket 120, the antenna assembly 132 is located on the side of the circuit board assembly 131 facing the sky, and the shielding cover 133 is located on the side of the circuit board assembly 131 facing the supporting portion 122.

The antenna assembly 132 is configured to receive signals transmitted from satellites, for example, the antenna assembly 132 is configured to receive signals transmitted from satellites such as GPS satellites, beidou satellites, and the like. Various circuits (hereinafter, referred to as signal processing circuits) for processing signals received by the antenna assembly 132 are formed in the circuit board assembly 131, and the signal processing circuits process the signals received by the antenna assembly 132 and transmit the signals to the GPS receiver through the signal line 134.

Illustratively, the signal processing circuit formed on the circuit board assembly 131 may include a filter circuit and a signal amplification circuit. Other signals received by the antenna assembly 132 are filtered by the filter circuit, and required signals are reserved, and the strength of the signals received by the antenna assembly 132 is usually weak, so that the required signals need to be amplified by the signal amplification circuit, the signal strength is increased, the GPS receiver can receive clear signals, and the positioning accuracy of the GPS receiver is ensured.

GPS signals typically include signals in the L1, L2, and L5 bands, wherein signals in the L5 band are less applicable due to the narrower band, and LI and L2 band signals are typically received by a GPS receiver. Taking the antenna assembly 132 for receiving signals in the L1 and L2 bands as an example, the filter circuit on the circuit board assembly 131 is used for shielding signals in other bands than the L1 and L2 bands, and the signal amplifier circuit is used for amplifying signals in the L1 and L2 bands.

Because the signal of the required wave band that receives with antenna module 132 is amplified the back, and the noise of signal is great, can influence the definition and the precision of signal, at this moment, needs the circuit in shield cover 133 to handle the signal after the amplification, and the wave form of the signal after the steady amplification ensures that the GPS receiver can receive steady, clear signal.

Referring to fig. 12, in this embodiment, the circuit board assembly 131 may include a main board 1311 and at least one extension board 1312, where the main board 1311 is a main structure of the circuit board assembly 131, the antenna assembly 132 is connected to the main board 1311, and the extension board 1312 surrounds a peripheral side of the main board 1311 and is vertically connected to an edge of the main board 1311. Illustratively, main board 1311 is adapted to be coupled to support surface 122a of support portion 122, extension board 1312 is coupled to a side surface of main board 1311 on which antenna assembly 132 is disposed, and extension board 1312 extends away from support surface 122 a.

Taking the planar shape of the main board 1311 as a rectangle as an example, four extension boards 1312 may be respectively disposed on four sides of the main board 1311, and the four extension boards 1312 surround the main board 1311. Alternatively, an annular extension plate 1312 may be provided along the circumferential edge of the main plate 1311.

In practical applications, the components disposed on the circuit board assembly 131 may all be disposed on the main board 1311, and only the circuit connected to the main board 1311 is formed on the extension board 1312. By providing the extension board 1312, the area of the circuit board assembly 131 can be increased, the signal receiving capability of the antenna assembly 132 can be improved, and the gain value of L2, which is lower for the band frequency, can be improved. Meanwhile, by making the extension board 1312 perpendicular to the main board 1311, the area of the circuit board assembly 131 in the plane direction is determined by the main board 1311, and the extension board 1312 does not occupy the extra plane space of the circuit board assembly 131, so that the occupied space of the circuit board assembly 131 can be reduced.

Taking the antenna assembly 132 as an example for receiving signals in the L1 and L2 bands, the antenna assembly 132 may include a first ceramic sheet 1321 and a second ceramic sheet 1322, where the first ceramic sheet 1321 and the second ceramic sheet 1322 are stacked in a direction perpendicular to the board surface of the main board 1311, for example, the first ceramic sheet 1321 is connected to the main board 1311, and the second ceramic sheet 1322 is stacked on the first ceramic sheet 1321.

The first ceramic sheet 1321 and the second ceramic sheet 1322 are configured to mainly receive signals of the L1 band and the L2 band, respectively. In which the planar sizes of the first ceramic sheet 1321 and the second ceramic sheet 1322 are different corresponding to frequencies of the L1 band and the L2 band, for example, the cross-sectional area of the first ceramic sheet 1321 may be larger than that of the second ceramic sheet 1322.

It is to be understood that, if the antenna assembly 132 is also used for receiving signals of other wavelength bands, on the basis of the first ceramic sheet 1321 and the second ceramic sheet 1322, the antenna assembly 132 may further include a third ceramic sheet, a fourth ceramic sheet, and the like, and the ceramic sheets may be stacked, and the embodiment is not particularly limited.

As shown in fig. 12, for example, the antenna assembly 132 includes a first ceramic sheet 1321 and a second ceramic sheet 1322 which are stacked, in order to realize assembly and fixation of the antenna assembly 132, a fixing hole 1323 may be provided through the first ceramic sheet 1321 and the second ceramic sheet 1322, a fixing member 1324 is provided in the fixing hole 1323, the first ceramic sheet 1321 and the second ceramic sheet 1322 are fixed together by the fixing member 1324, and the antenna assembly 132 may be fixed to the main board 1311 by the fixing member 1324. For example, the fixing member 1324 may be a locking member such as a screw or a bolt inserted into the fixing hole 1323.

As for the electrical connection of the antenna assembly 132 and the circuit board assembly 131, a plurality of probes may be inserted inside the antenna assembly 132, and the probes may be brought into contact with the signal processing circuit on the circuit board assembly 131 to electrically connect the antenna assembly 132 and the signal processing circuit. For example, 4 probes may be provided on the antenna assembly 132 at even intervals in the circumferential direction.

Referring to fig. 13, in order to improve the signal receiving capability of the antenna element 132, in this embodiment, a supporting plate 140 is further installed on the supporting surface 122a of the supporting portion 122 of the cantilever bracket 120, and the antenna body 130 is fixedly connected to the supporting portion 122 through the supporting plate 140. As shown in fig. 6 and 13, one side surface of the supporting board 140 is attached to the supporting surface 122a, and the main board 1311 of the circuit board assembly 131 is attached to one side surface of the supporting board 140 away from the supporting portion 122.

The support plate 140 may be a metal plate, for example, the support plate 140 is an aluminum plate or an aluminum alloy plate, and the cross-sectional area of the support plate 140 is larger than that of the antenna body 130, that is, the cross-sectional area of the support plate 140 is larger than that of the main board 1311 mounted on the surface thereof. Thus, the supporting plate 140 can increase the signal gain value and improve the signal processing capability of the antenna body 130; in addition, the support plate 140 may be fixedly coupled to the supporter 122 using an area of the support plate 140 exposed outside the main plate 1311.

In addition, as shown in fig. 13, since the shielding case 133 is attached to a surface of the main board 1311 of the circuit board assembly 131 on a side facing the supporting portion 122, and the main board 1311 is attached to the supporting plate 140, the supporting plate 140 may be provided as a ring-shaped member, and the shielding case 133 penetrates through an annular region surrounded by the supporting plate 140. Furthermore, since the thickness of the supporting plate 140 is very thin, the thickness space of the supporting plate 140 is not enough to accommodate the shielding cover 133, and therefore, the supporting portion 122 may also be designed to be a hollow structure, the supporting portion 122 includes an outer ring portion 1221, an area enclosed by the outer ring portion 1221 is a hollow area, the shielding cover 133 extends into the hollow area enclosed by the outer ring portion 1221, and as shown in fig. 14, the shielding cover 133 is exposed in the hollow area of the supporting portion 122 of the cantilever bracket 120.

Referring to fig. 13, in connection between the antenna body 130 and the supporting plate 140, a communicating hole (not shown) may be formed in a portion of the main board 1311 of the antenna body 130 close to the extending plate 1312, a positioning hole b may be formed in the supporting plate 140 corresponding to the communicating hole of the main board 1311, and a locking member such as a screw or a rivet may be inserted into the communicating hole and the positioning hole b to mechanically connect the antenna body 130 to the supporting plate 140.

As for the connection between the support plate 140 and the support portion 122, for example, communication holes a may be disposed at four corners of the support plate 140, positioning holes b may be disposed at the outer ring 1221 of the support portion 122, the positioning holes b correspond to the communication holes a one-to-one, and the support plate 140 and the support portion 122 are mechanically connected by inserting locking members such as screws or bolts into the communication holes a and the positioning holes b.

The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims (19)

1. The utility model provides a vehicle antenna, its characterized in that installs in the vortex cover that sets up on the rear of a vehicle door, includes: the antenna comprises a fixed seat, a cantilever bracket and an antenna body;

the tail gate comprises an installation part, the turbulence cover is connected to the outer wall surface of the installation part, and the turbulence cover and the installation part are enclosed to form an installation cavity; the fixing base connect in the internal face of installation department, the cantilever bracket includes the bracket main part, the both ends of bracket main part are stiff end and free end respectively, the stiff end connect in the fixing base, the bracket main part stretches into the installation intracavity, the antenna body is fixed in the free end.

2. The vehicle antenna of claim 1, wherein the bracket body comprises a supporting section and a guiding section which are connected, the fixed end is an end of the supporting section facing away from the guiding section, and the free end is an end of the guiding section facing away from the supporting section;

wherein, the direction section with have the contained angle between the support section, the direction section is followed the width direction of rear of a vehicle door extends.

3. The vehicle antenna according to claim 2, wherein the guide section protrudes laterally in a width direction of the tailgate.

4. The vehicle antenna according to any one of claims 1 to 3, wherein the free end is provided with a bearing portion, the bearing portion is provided with a bearing surface, the bearing surface is a side surface of the bearing portion, the side surface faces away from the ground, and the antenna body is mounted on the bearing surface.

5. The vehicle-mounted antenna according to claim 4, further comprising a supporting plate, wherein the supporting plate is mounted on the supporting surface, and the antenna body is attached to a side surface of the supporting plate, which is far away from the supporting part.

6. The vehicle antenna of claim 5, wherein the support plate is a metal plate, and a cross-sectional area of the support plate is larger than a cross-sectional area of the antenna body.

7. The vehicle antenna of claim 5, wherein the support portion comprises an outer ring portion, an area surrounded by the outer ring portion is a hollow area, and an edge of the support plate is overlapped with the outer ring portion.

8. The vehicle antenna of claim 7, wherein the antenna body comprises a circuit board assembly, an antenna assembly, and a shield;

the circuit board assembly is attached to the supporting plate, the antenna assembly is connected to one side surface, away from the supporting plate, of the circuit board assembly, the shielding cover is connected to one side surface, facing the supporting portion, of the circuit board assembly, and the shielding cover is located in the hollow area.

9. The vehicle antenna of claim 8, wherein the circuit board assembly comprises a main board and at least one extension board, the main board is attached to the support board, the antenna assembly is connected to the main board, the extension board is connected perpendicularly to an edge of the main board, and the extension board surrounds a periphery of the main board.

10. The vehicle antenna of claim 8, wherein the antenna assembly comprises at least a first ceramic sheet and a second ceramic sheet, the first ceramic sheet and the second ceramic sheet being stacked in a direction perpendicular to the plate surface of the supporting plate.

11. The vehicle-mounted antenna according to any one of claims 1 to 3, wherein the mounting portion is provided with at least one mounting hole, the fixing end is connected to a portion of the fixing base corresponding to the mounting hole, and two ends of the fixing base are respectively connected to portions of the inner wall surface of the mounting portion, which are located on two sides of the mounting hole.

12. The vehicle-mounted antenna according to claim 11, wherein a positioning groove is formed in the fixing base at a position corresponding to the mounting hole, a positioning plate is arranged at the fixing end, and the positioning plate is clamped into the positioning groove and fixedly connected with the fixing base.

13. The vehicle antenna of claim 12, wherein the notch of the positioning slot is located on a side of the fixing base facing away from the mounting portion, a surface of a side of the positioning plate facing the free end abuts against a bottom of the positioning slot, and an avoiding notch is formed in the bottom of the positioning slot, and the bracket body passes through the avoiding notch.

14. The vehicle antenna according to claim 12, wherein the positioning groove communicates with one side end surface of the fixing base and forms an insertion opening from which the positioning plate is inserted into the positioning groove.

15. A tailgate, comprising a door panel, a spoiler, and at least one vehicle antenna of any one of claims 1-14;

the door plant includes the installation department, the vortex cover connect in the outer wall of installation department, the vortex cover with the installation department encloses to close and forms the installation cavity, vehicle antenna install in the internal face of installation department stretches into in the installation cavity.

16. The tailgate according to claim 15, wherein said vehicle-mounted antennas are two in number, and two of said vehicle-mounted antennas are respectively located near both sides in a width direction of said door panel.

17. The tailgate according to claim 16, wherein the antenna bodies of the two vehicle antennas are symmetrical to each other about the central axis of the door panel.

18. The tailgate according to claim 15, wherein said vehicle-mounted antennas are three in number, and three of said vehicle-mounted antennas are provided at intervals in a width direction of said door panel.

19. The tailgate according to any of claims 16-18, wherein a spacing between antenna bodies of adjacent vehicle antennas is greater than or equal to 60 cm.

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