Vehicle antenna and tailgate

Abstract

The present disclosure relates to a vehicle-mounted antenna and a tail door, and relates to the technical fields of automatic driving and antennas. The vehicle-mounted antenna is installed in a fairing arranged on the tail door and comprises a fixing seat, a cantilever bracket and an antenna body. The tail door comprises a mounting portion, the fairing is connected to an outer wall surface of the mounting portion, and the fairing and the mounting portion form a mounting cavity. The fixing seat is connected to an inner wall surface of the mounting portion, the cantilever bracket comprises a bracket main body, two ends of the bracket main body are respectively a fixed end and a free end, the fixed end of the bracket main body is connected to the fixing seat, the bracket main body extends into the mounting cavity, and the antenna body is fixed to the free end of the bracket main body. The vehicle-mounted antenna has a good installation environment, high reliability, flexible installation position and small limitation, and can meet the demand for high positioning accuracy.

Description

Technical Field

[0001] This disclosure relates to the fields of autonomous driving and antenna technology, specifically to a vehicle-mounted antenna and a vehicle tailgate. Background Technology

[0002] The Global Positioning System (GPS) can accurately and in real-time detect the current position of a GPS receiver. Therefore, GPS is primarily used to mount GPS receivers on moving objects such as cars, airplanes, or mobile phones to determine their current location, and it is also increasingly being used in autonomous vehicles.

[0003] Currently, GPS receivers suitable for installation in automobiles are rapidly becoming more widespread. GPS receivers include GPS vehicle antennas, which are typically mounted on the roof. Some cars have a "shark fin" roof structure, with the GPS antenna installed inside the "shark fin"; other cars do not have a "shark fin" roof, and instead use an IP-rated (waterproof and dustproof) antenna box mounted on the roof.

[0004] However, due to the vehicle roof being exposed to the external environment, the installation environment for GPS vehicle antennas is poor, resulting in low reliability and installation limitations. Summary of the Invention

[0005] This disclosure provides a vehicle-mounted antenna and a tailgate. The vehicle-mounted antenna is installed inside the spoiler of the tailgate, which has high reliability, flexible installation position, few limitations, and can meet the requirements of high positioning accuracy.

[0006] On the one hand, this disclosure provides a vehicle-mounted antenna, which is installed inside a spoiler on the tailgate of a vehicle. The vehicle-mounted antenna includes: a mounting base, a cantilever bracket, and an antenna body.

[0007] The tailgate includes a mounting section, a spoiler is connected to the outer wall of the mounting section, and the spoiler and the mounting section enclose a mounting cavity; a fixed seat is connected to the inner wall of the mounting section, and the cantilever bracket includes a bracket body, with a fixed end and a free end at both ends of the bracket body, the fixed end of the bracket body is connected to the fixed seat, the bracket body extends into the mounting cavity, and the antenna body is fixed to the free end of the bracket body.

[0008] The vehicle-mounted antenna disclosed herein is installed in the mounting portion of the vehicle's tailgate, extending into the mounting cavity formed between the spoiler and the mounting portion. This allows the antenna to be installed within the spoiler, providing a favorable installation environment, high antenna reliability, and ample space for flexible antenna placement. It can accommodate the installation of two or more antennas and improves antenna positioning accuracy. Furthermore, the short signal cable routing distance enhances signal gain and improves signal processing capabilities. Specifically, the antenna is fixed to the mounting portion by connecting a mounting base to the inner wall of the mounting portion. The fixed end of the cantilever bracket's main body is connected to the mounting base, with the bracket main body extending into the spoiler. The antenna body is then fixed to the free end of the bracket main body located within the spoiler, thus securing the antenna to the mounting portion and extending the antenna body into the spoiler.

[0009] In one possible implementation, the bracket body includes a connected support section and a guide section, the fixed end of the bracket body is the end of the support section away from the guide section, and the free end of the bracket body is the end of the guide section away from the support section.

[0010] The guide section and the support section are at an angle, and the guide section extends along the width of the tailgate.

[0011] In one possible implementation, the guide section extends laterally in the width direction of the tailgate.

[0012] In one possible implementation, the free end of the bracket body is provided with a support portion, the support portion having a support surface, the support surface being the side surface of the support portion facing away from the ground, and the antenna body is mounted on the support surface.

[0013] In one possible implementation, the vehicle-mounted antenna further includes a support plate mounted on a supporting surface, with the antenna body attached to the side of the support plate opposite to the supporting surface.

[0014] In one possible implementation, 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.

[0015] In one possible implementation, the support portion includes an outer ring portion, the area enclosed by the outer ring portion is a hollow area, and the edge of the support plate overlaps with the outer ring portion.

[0016] In one possible implementation, the antenna body includes a circuit board assembly, an antenna assembly, and a shielding cover;

[0017] The circuit board assembly is mounted on the support plate, the antenna assembly is connected to the side surface of the circuit board assembly away from the support plate, and the shielding cover is connected to the side surface of the circuit board assembly facing the support, and the shielding cover is located in the hollow area.

[0018] In one possible implementation, the circuit board assembly includes a main board and at least one extension board, the main board being mounted on a support plate, the antenna assembly being connected to the main board, and the extension board being perpendicularly connected to the edge of the main board and surrounding the periphery of the main board.

[0019] In one possible implementation, the antenna assembly includes at least a first ceramic sheet and a second ceramic sheet, which are stacked in a direction perpendicular to the surface of the support plate.

[0020] In one possible implementation, the mounting part is provided with at least one mounting hole, the fixed end of the bracket body is connected to the part of the fixed seat corresponding to the mounting hole, and the two ends of the fixed seat are respectively connected to the parts on both sides of the mounting hole on the inner wall surface of the mounting part.

[0021] In one possible implementation, the mounting base has a positioning groove at the location corresponding to the mounting hole, and the fixed end of the bracket body has a positioning plate, which is inserted into the positioning groove and fixedly connected to the mounting base.

[0022] In one possible implementation, the opening of the positioning groove is located on the side of the fixed base away from the mounting part, the surface of the positioning plate facing the free end abuts against the bottom of the positioning groove, and the bottom of the positioning groove is provided with an avoidance notch through which the bracket body passes.

[0023] In one possible implementation, the positioning groove is connected to one end face of the fixing seat and forms an insertion port, and the positioning plate is inserted into the positioning groove through the insertion port.

[0024] On the other hand, this disclosure provides a tailgate, including a door panel, a spoiler, and at least one vehicle-mounted antenna as described above;

[0025] The door panel includes a mounting section, a spoiler is connected to the outer wall of the mounting section, the spoiler and the mounting section enclose to form a mounting cavity, and the vehicle antenna is mounted on the inner wall of the mounting section and extends into the mounting cavity.

[0026] The tailgate disclosed herein features a spoiler that is non-removably connected to the outer wall of the mounting portion of the door panel. By connecting the mounting bracket of the vehicle-mounted antenna to the inner wall of the mounting portion, and connecting the fixed end of the cantilever bracket's main body to the mounting bracket with the main body extending into the spoiler, the antenna body is fixed to the free end of the bracket body located within the spoiler, thus securing the vehicle-mounted antenna to the mounting portion and allowing the antenna body to extend into the spoiler. The installation environment within the spoiler is favorable, resulting in high reliability of the vehicle-mounted antenna. Furthermore, the large space within the spoiler allows for more flexible antenna placement, accommodating the installation needs of two or more vehicle-mounted antennas and improving their positioning accuracy. Additionally, the shorter signal cable routing distance of the vehicle-mounted antenna increases signal gain and enhances its signal processing capabilities.

[0027] In one possible implementation, there are two vehicle-mounted antennas, with each antenna positioned near one side of the door panel in the width direction.

[0028] In one possible implementation, the antenna bodies of the two vehicle-mounted antennas are symmetrical about the central axis of the door panel.

[0029] In one possible implementation, the number of vehicle-mounted antennas is three, and the three vehicle-mounted antennas are spaced apart along the width direction of the door panel.

[0030] In one possible implementation, the distance between the antenna bodies of the two vehicle-mounted antennas is greater than or equal to 60cm.

[0031] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0032] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0033] Figure 1 This is a schematic diagram of the structure of the tailgate provided in an embodiment of this disclosure;

[0034] Figure 2 for Figure 1 A partially exploded view of the tailgate of a vehicle without an onboard antenna installed.

[0035] Figure 3 for Figure 1 A partial view of the inside of the tailgate of a vehicle without an onboard antenna installed.

[0036] Figure 4 for Figure 1 A partial exploded view of the tailgate of a vehicle equipped with a vehicle-mounted antenna;

[0037] Figure 5 for Figure 1 A partial view of the inside of the tailgate of a vehicle equipped with a vehicle-mounted antenna;

[0038] Figure 6 A front view of a vehicle-mounted antenna provided in an embodiment of this disclosure;

[0039] Figure 7 for Figure 6 A schematic diagram of the cantilever bracket in the diagram;

[0040] Figure 8 for Figure 6 A schematic diagram of the structure of the fixed base;

[0041] Figure 9 for Figure 6 Exploded view of the cantilever bracket and fixed seat assembly in the middle;

[0042] Figure 10 This is a schematic diagram of the assembly of the vehicle antenna and the door panel;

[0043] Figure 11 This is a schematic diagram of the antenna body provided in an embodiment of the present disclosure;

[0044] Figure 12 for Figure 11 Exploded view;

[0045] Figure 13 for Figure 6 Exploded view;

[0046] Figure 14 for Figure 6 A bottom view.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1- Tailgate;

[0049] 100 - Vehicle antenna; 200 - Door panel; 300 - Spoiler;

[0050] 110-Fixed bracket; 120-Cantilever bracket; 130-Antenna body; 140-Support plate; 210-Rear window frame; 220-Trunk lid; 310-High-mounted brake light;

[0051] 111-Positioning slot; 121-Bracket body; 122-Supporting part; 122a-Supporting surface; 123-Positioning plate; 131-Circuit board assembly; 132-Antenna assembly; 133-Shielding cover; 134-Signal line; 211-Mounting part;

[0052] 1111 - Avoidance notch; 1112 - Insertion port; 1211 - Support section; 1212 - Guide section; 1221 - Outer ring; 1311 - Main board; 1312 - Extension plate; 1321 - First ceramic plate; 1322 - Second ceramic plate; 1323 - Fixing hole; 1324 - Fixing element; 2111 - Mounting hole;

[0053] a-Connecting hole; b-Positioning hole; c-Back nut. Detailed Implementation

[0054] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0055] GPS receivers are typically mounted on moving objects such as cars, airplanes, or mobile phones to detect their real-time location and determine the current position of the moving object. For example, a GPS receiver mounted on a car usually has a GPS antenna that receives GPS signals and transmits them to the GPS receiver, which then determines the vehicle's spatial location.

[0056] In related technologies, GPS antennas are typically mounted on the exterior of the vehicle, such as the roof, to facilitate GPS signal reception and avoid interference from the vehicle structure. For example, some passenger vehicles, such as sedans and sport / suburban utility vehicles (SUVs), have a "shark fin"-shaped roof cover, and the GPS antenna is usually installed inside this cover. For vehicles without a "shark fin," an IP-rated (waterproof and dustproof) antenna box is typically used, sealing the GPS antenna within the box, which is then mounted on the vehicle's roof.

[0057] However, because the vehicle roof is exposed to the external environment, which contains a lot of moisture and dust, the installation environment for GPS antennas is poor and their reliability is low. Furthermore, for vehicles without a "shark fin" antenna, the antenna box mounted on the roof can increase wind resistance and affect vehicle speed.

[0058] Furthermore, the signal line connecting the GPS antenna and the GPS receiver is quite long because it needs to extend from the roof to the interior of the vehicle. The resistance of the signal line itself will affect the signal gain and weaken the GPS antenna's ability to receive signals.

[0059] In addition, for vehicles with high positioning accuracy requirements, such as those in L4 and above driving modes defined in Advanced Driving Assistance Systems (ADAS), which can achieve highly automated or even fully automated driving operations by relying on the autonomous driving system, dual antennas are generally required for positioning. The two GPS antennas need to be installed on both sides of the vehicle body, but the "shark fin" on the roof can usually only install one GPS antenna, which cannot meet the requirements for dual antenna arrangement. If two antenna boxes are installed at intervals on the roof, it will be very limiting and the vehicle's wind resistance will also be greater.

[0060] To address this, this disclosure provides an onboard antenna and a tailgate for use in the field of autonomous driving, specifically for onboard antennas in autonomous vehicles. The onboard antenna and tailgate provided in this disclosure are designed to match the spoiler mounted on the tailgate of the vehicle. The onboard antenna is fixedly installed on the tailgate and can extend into the spoiler. The installation environment inside the spoiler is favorable, the onboard antenna has high reliability, and installation limitations are minimal, thus meeting the requirements for dual-antenna deployment.

[0061] For example, the tailgate of this embodiment can be applied to passenger vehicles such as sedans or SUVs equipped with spoilers, or the tailgate of this embodiment can also be applied to other types of vehicles such as racing cars. This embodiment does not limit this.

[0062] Figure 1 This is a schematic diagram of the structure of the tailgate provided in an embodiment of this disclosure; Figure 2 for Figure 1 A partially exploded view of the tailgate of a vehicle without an onboard antenna installed. Figure 3 for Figure 1 A partial view of the inside of the tailgate of a vehicle without an onboard antenna installed.

[0063] Reference Figure 1 As shown, the tailgate 1 includes a door panel 200 and a spoiler 300. The door panel 200 can be an integrally formed structure. For example, the door panel 200 may include a rear window frame 210 and a trunk lid 220. The area enclosed by the rear window frame 210 is used to install the rear window glass. The rear window frame 210 can support and fix the rear window glass. The trunk lid 220 is located on the bottom side of the rear window frame 210 and covers the trunk of the vehicle body.

[0064] Reference Figure 2As shown, the top of the rear window frame 210, that is, the side where the rear window frame 210 connects to the roof, has a mounting part 211. The mounting part 211 is part of the rear window frame 210. At the same time, the mounting part 211 can serve as the mounting base for the spoiler 300. The spoiler 300 is mounted on the outer wall of the mounting part 211. The spoiler 300 and the outer wall of the mounting part 211 can together form a mounting cavity. The mounting cavity can be used to install a vehicle antenna (not shown in the figure) or for wiring inside the vehicle.

[0065] It should be noted that the spoiler 300 refers to the vehicle's spoiler panel, an additional panel installed above the vehicle's rear. The spoiler 300 is also called a rear wing. The outer surface of the spoiler 300 forms a spoiler surface, the main function of which is to reduce lift at the rear of the vehicle and ensure high-speed stability. Since the spoiler and the mounting part 211 form a mounting cavity, for ease of explanation of the function of the mounting cavity formed inside the spoiler, the spoiler is defined here as the spoiler 300. For ease of description, the mounting cavity formed between the spoiler 300 and the mounting part 211 will be referred to as the interior of the spoiler 300, and will not be elaborated further.

[0066] Furthermore, the inner wall surface of the mounting portion 211 refers to the side of the mounting portion 211 facing the inside of the vehicle, while the outer wall surface of the mounting portion 211 refers to the side of the mounting portion 211 facing the outside of the vehicle. That is, the outer wall surface of the mounting portion 211 is the side of the mounting portion 211 facing the rear of the vehicle, and the spoiler 300 is mounted on the outer wall surface of the mounting portion 211. The inner wall surface of the spoiler 300 is the side wall surface of the spoiler 300 that faces inward and forms the mounting cavity, while the outer wall surface of the spoiler 300 is opposite to the inner wall surface of the spoiler 300 and is the side wall surface of the spoiler 300 facing the outside of the vehicle.

[0067] In this embodiment, the vehicle antenna is installed in the mounting cavity formed between the spoiler 300 and the mounting part 211 of the tailgate 1. Compared with installing the vehicle antenna on the roof, the mounting cavity formed between the spoiler 300 and the mounting part 211 is a sealed space and is protected by the spoiler 300. The interior of the spoiler 300 forms a dry space, and the antenna space located inside the spoiler 300 is not affected by the external environment, resulting in high reliability and safety.

[0068] Furthermore, the spoiler 300 has ample space, allowing for flexible placement of vehicle antennas. For example, two vehicle antennas can be installed inside the spoiler 300 to meet the positioning requirements of driving modes above L4 as defined in ADAS.

[0069] Furthermore, since the spoiler 300 is located at the rear of the vehicle near the roof, wiring can be installed inside the spoiler 300 to connect electrically to relevant components inside the vehicle, as shown in the reference. Figure 2As shown, taking the high-mounted brake light 310 installed on the spoiler 300 as an example, the wire used to control the high-mounted brake light 310 extends into the spoiler 300 and is connected to the high-mounted brake light 310. The wire connected to the high-mounted brake light 310 can be routed to the trunk and then electrically connected to the relevant control system in the vehicle through a device in the trunk, or the wire can be routed through the trunk to connect to the relevant control system.

[0070] Thus, the signal line of the vehicle antenna installed inside the spoiler 300 can also be routed through the wiring structure inside the spoiler 300 to the trunk, and electrically connected to the GPS receiver through the devices inside the trunk, or connected to the GPS receiver, such as an in-vehicle navigation terminal, through the wiring in the trunk.

[0071] Compared to a GPS antenna mounted on the roof, where the signal cable needs to extend from the roof along the vehicle body to the trunk and then connect to the GPS receiver via a trunk cable, resulting in a longer cable routing, installing the vehicle antenna inside the spoiler 300 significantly reduces the cable length. For example, in practical applications, the cable length of the vehicle antenna installed inside the spoiler 300 can be between 1 / 3 and 1 / 4 of the original length compared to a roof-mounted antenna. This greatly shortens the cable length, reduces signal strength loss due to cable length, and effectively increases the signal gain of the GPS receiver, thereby enhancing the vehicle antenna's signal reception capability.

[0072] Reference Figure 1 As shown, in practical applications, the spoiler 300 is usually a plastic part made of plastic granules. Therefore, the spoiler 300, which covers the outside of the vehicle antenna, has no significant impact on the signal gain of the vehicle antenna. In some cases, to improve the overall aesthetics of the vehicle, the outer surface of the spoiler 300 may be coated with a layer of metallic paint similar to the vehicle body. Although the metallic paint has a slight impact on the signal gain of the vehicle antenna, the overall effect is beneficial to the signal gain of the GPS receiver because the signal cable length is greatly shortened, thus improving the vehicle antenna's ability to receive signals.

[0073] Combination Figure 1 and Figure 2 As shown, Figure 2 Although the structure of the spoiler 300 being separated from the door panel 200 of the tailgate 1 is shown, this embodiment is mainly for the case where the spoiler 300 is not removable. When the tailgate 1 leaves the factory, the spoiler 300 is installed on the mounting part 211 of the door panel 200. 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 other methods.

[0074] Reference Figure 3As shown, the mounting portion 211 of the tailgate 1 is usually provided with multiple mounting holes 2111. Wires that need to be connected to the spoiler 300 can be routed from the inner wall of the tailgate 1 through these mounting holes 2111 to the spoiler 300. Alternatively, some mounting holes 2111 can also be used to install other components or as clearance openings for maintenance.

[0075] Since the spoiler 300 is non-removably mounted on the tailgate 1, when installing the vehicle antenna 100, the vehicle antenna needs to be inserted into the spoiler 300 from the inside of the tailgate 1 (the side of the tailgate 1 facing the inside of the vehicle), and then the vehicle antenna is fixed on the mounting part 211 so that the vehicle antenna is installed in the mounting cavity formed between the spoiler 300 and the mounting part 211.

[0076] Figure 4 for Figure 1 A partial exploded view of the tailgate of a vehicle equipped with a vehicle-mounted antenna; Figure 5 for Figure 1 A partial view of the inside of the tailgate where the vehicle's antenna is installed. (Refer to...) Figure 4 and Figure 5 As shown, in this embodiment, the vehicle antenna 100 is inserted into the spoiler 300 through the mounting hole 2111 reserved on the mounting part 211 of the tailgate 1, and the vehicle antenna 100 is fixed to the inner wall of the mounting part 211. This is how the vehicle antenna 100 is installed into the spoiler 300.

[0077] In the case where two vehicle-mounted antennas 100 are installed inside the spoiler 300, combined with Figure 4 and Figure 5 As shown, two vehicle antennas 100 can be inserted into the spoiler 300 through two mounting holes 2111 on the mounting part 211, which are located on both sides of the door panel 200 in the width direction. The two vehicle antennas 100 are connected and fixed to the area around the two mounting holes 2111 on the inner wall of the mounting part 211.

[0078] In practical applications, two appropriately spaced mounting holes 2111 can be selected on the mounting part 211 according to the positioning requirements of the vehicle, serving as the insertion holes for the two vehicle antennas 100 to extend into the spoiler 300. These two mounting holes 2111 serve as the basic positioning of the two vehicle antennas 100 respectively.

[0079] Additionally, it should be noted that the width direction of the door panel 200 refers to the width direction of the vehicle. Figure 2 and Figure 3As shown, the mounting holes 2111 on the mounting portion 211 of the door panel 200 are typically spaced apart along the width direction of the door panel 200 to meet the wiring requirements or other needs of different parts in the width direction of the vehicle. This arrangement of mounting holes 2111 also accommodates the installation of two or more vehicle antennas 100, ensuring sufficient spacing between the vehicle antennas 100 in the width direction of the vehicle to meet vehicle positioning requirements.

[0080] Taking two vehicle-mounted antennas 100 as an example, the current location of the vehicle can be determined by either one of the vehicle-mounted antennas 100. By setting two vehicle-mounted antennas 100 at intervals along the width of the vehicle, the position of the rear of the vehicle can be determined by the joint positioning of the two vehicle-mounted antennas 100. Based on this, parameters such as the vehicle's deflection angle and deflection speed can be determined to achieve accurate positioning of the vehicle.

[0081] In some embodiments, more vehicle antennas 100 are spaced apart inside the spoiler 300 along the width direction of the door panel 200. For example, three vehicle antennas 100 are spaced apart inside the spoiler 300, and the three vehicle antennas 100 extend into the spoiler 300 through three spaced mounting holes 2111 on the mounting part 211. By setting three vehicle antennas 100, all three vehicle antennas 100 are electrically connected to a GPS receiver. Based on the joint positioning of two vehicle antennas 100, one vehicle antenna 100 is redundant. If one vehicle antenna 100 fails to work properly, the other two vehicle antennas 100 can still achieve dual-antenna joint positioning, ensuring that the positioning requirements of driving modes above L4 in ADAS are met.

[0082] The structure of the vehicle-mounted antenna 100 is described in detail below, taking the tailgate 1 as an example.

[0083] Figure 6 A front view of a vehicle-mounted antenna provided in an embodiment of this disclosure; Figure 7 for Figure 6 A schematic diagram of the cantilever bracket in the diagram; Figure 8 for Figure 6 A schematic diagram of the structure of the fixed base; Figure 9 for Figure 6 Exploded view of the cantilever bracket and fixed seat assembly in the middle; Figure 10 This is a schematic diagram of the assembly of the vehicle antenna and the door panel.

[0084] Reference Figure 6As shown, in order to extend the vehicle antenna 100 from the inside of the tailgate 1 into the spoiler 300 and fix the vehicle antenna 100 to the inner wall of the mounting part 211, in this 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 to receive GPS signals and is fixed on the cantilever bracket 120. The cantilever bracket 120 can extend into the spoiler 300 through the mounting hole 2111 on the mounting part 211, and the cantilever bracket 120 is connected to the fixing base 110. The fixing base 110 is used to connect to the inner wall of the mounting part 211 to position the cantilever bracket 120 inside the spoiler 300 and to position the antenna body 130.

[0085] Combination Figures 4-6 As shown, for the assembly of the vehicle antenna 100 on the tailgate 1, the antenna body 130 is first fixed to the cantilever bracket 120. The cantilever bracket 120 extends from the inner wall of the mounting part 211 through the mounting hole 2111 into the spoiler 300 to insert the antenna body 130 into the spoiler 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, ensuring that the antenna body 130 has a suitable angle of view (FOV). Then, the mounting base 110 is connected to the cantilever bracket 120, and the mounting base 110 is fixedly connected to the inner wall of the mounting part 211, thereby positioning the antenna body 130 inside the spoiler 300.

[0086] In addition, for the case where two vehicle antennas 100 are installed inside the spoiler 300, taking the vehicle antenna 100 as a high-precision antenna as an example, the static (vehicle antenna 100 in a stationary state) positioning accuracy of the vehicle antenna 100 is within 10cm and the dynamic (vehicle antenna 100 in a moving state) positioning accuracy is within 30cm, the distance between the antenna bodies 130 of the two vehicle antennas 100 can be ≥60cm. For example, the distance between the antenna bodies 130 of the two vehicle antennas 100 can be 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm or 100cm, etc., which can be specifically determined according to the distance between the mounting holes 2111 on the mounting part 211 of the tailgate 1. This embodiment does not impose specific restrictions on this.

[0087] In one specific implementation, the antenna bodies 130 of the two vehicle-mounted antennas 100 can be symmetrical about the central axis of the tailgate panel 200, combined with... Figure 3 and Figure 4As shown, in practical applications, the mounting holes 2111 on the mounting portion 211 of the tailgate 1 may include two mounting holes 2111 symmetrical about the central axis of the tailgate 1. In this embodiment, two vehicle antennas 100 spaced apart along the width direction of the tailgate 1 can pass through the two symmetrical mounting holes 2111 and extend into the spoiler 300. By adjusting the cantilever bracket 120 of the vehicle antenna 100, the antenna bodies 130 of the two vehicle antennas 100 are symmetrical about the central axis of the tailgate 1. In this way, the distances of the two antenna bodies 130 from the centerline of the vehicle are equal, and the accuracy of joint positioning is higher.

[0088] Reference Figure 7 As shown, the cantilever bracket 120 includes a bracket body 121. For ease of description, in this embodiment, the two ends of the bracket body 121 are defined as a fixed end and a free end, respectively. The fixed end of the bracket body 121 is the end where the bracket body 121 is connected to the mounting base 110. Since the mounting base 110 is connected to the inner wall of the mounting portion 211, the fixed end of the bracket body 121 is usually close to the plane where the mounting portion 211 is located. The free end of the bracket body 121 is the other end opposite to its fixed end. The bracket body 121 extends into the spoiler 300 through the mounting hole 2111 on the mounting portion 211, and its free end is located inside the spoiler 300. The antenna body 130 is fixed to the free end of the bracket body 121.

[0089] Regarding the connection between the bracket body 121 and the fixing seat 110, the fixing end of the bracket body 121 can be connected to the middle of the fixing seat 110 along its length. Since the bracket body 121 extends into the turbulence through the mounting hole 2111 on the mounting part 211, the connection point between the fixing end of the bracket body 121 and the fixing seat 110 can correspond to the location of the mounting hole 2111 on the mounting part 211. In addition, the two ends of the fixing seat 110 along its length are respectively located on both sides of the mounting hole 2111, and the two ends of the fixing seat 110 are respectively connected to the inner wall surface of the mounting part 211 at the locations on both sides of the mounting hole 2111.

[0090] The bracket body 121 may include a connected support section 1211 and a guide section 1212. The support section 1211 is close to the mounting part 211. The fixed end of the bracket body 121 is the end of the support section 1211 that is opposite to the guide section 1212, and the free end of the bracket body 121 is the end of the guide section 1212 that is opposite to the support section 1211. The support section 1211 is used to connect with the fixing base 110 and plays a major supporting role for the bracket body 121 and the antenna body 130 as a whole. The antenna body 130 is connected to the end of the guide section 1212, which is used to guide and position the antenna body 130 within the spoiler 300.

[0091] The guide section 1212 and the support section 1211 form an angle. The support section 1211 is mainly used to allow the cantilever bracket 120 to extend into the spoiler 300. Therefore, the support section 1211 can extend into the spoiler 300 approximately perpendicularly from the mounting hole 2111 of the mounting part 211. For example, the support section 1211 of the cantilever bracket 120 is perpendicular to the fixing seat 110 connected to the inner wall of the mounting part 211. Since the width space (the dimension in the length direction of the vehicle) inside the spoiler 300 is limited, the guide section 1212 mainly extends along the length direction of the spoiler 300 (the width direction of the tailgate 1). For example, the guide section 1212 extends approximately perpendicular to the support section 1211. In this way, it is also convenient to control the spacing between the vehicle antennas 100 when two or more vehicle antennas 100 are spaced apart inside the spoiler 300.

[0092] Combination Figure 4 and Figure 7 As shown, in one specific embodiment, the guide section 1212 of the bracket body 121 can extend laterally in the length direction of the spoiler 300, that is, the guide section 1212 extends laterally in the width direction of the tailgate 1. Continuing with the example of two vehicle antennas 100 spaced apart along the length direction inside the spoiler 300, by making the guide section 1212 of the bracket body 121 of each vehicle antenna 100 extend to both sides in the width direction of the vehicle, sufficient spacing can be provided between the two antenna bodies 130, improving the joint positioning accuracy of the two vehicle antennas 100.

[0093] While ensuring sufficient spacing between the antenna bodies 130 of the two vehicle antennas 100, the guide section 121 of one of the bracket bodies 121 of the two vehicle antennas 100 may extend laterally in the width direction of the tailgate 1, and the other may extend towards the center in the width direction of the tailgate 1; or, the guide sections 1212 of both bracket bodies 121 may extend towards the center in the width direction of the tailgate 1.

[0094] Additionally, refer to Figure 7 As shown, the free end of the bracket body 121, i.e., the end of the guide section 1212 facing away from the support section 1211, is provided with a support portion 122. The support portion 122 matches the shape and size of the antenna body 130, and the antenna body 130 is fixed on the support portion 122. One side surface of the support portion 122 faces the ground, and the other side surface of the support portion 122 facing away from the ground is the support surface 122a. The antenna body 130 is fixed to the support surface 122a of the support portion 122 to facilitate the antenna body 130 receiving GPS signals.

[0095] Regarding the connection between the cantilever bracket 120 and the fixed base 110, Figure 7 and Figure 8As shown, a positioning groove 111 can be provided on the fixed base 110 at the location corresponding to the mounting hole 2111, and a positioning plate 123 can be provided on the fixed end of the bracket body 121, as shown in the figure. Figure 9 As shown, the positioning plate 123 can be inserted into the positioning groove 111 to connect the bracket body 121 to the fixed base 110.

[0096] In addition, to ensure a secure connection between the cantilever bracket 120 and the fixed base 110, after the positioning plate 123 is inserted into the positioning groove 111, the positioning plate 123 can be fixedly connected to the bottom of the positioning groove 111. For example, connecting holes a can be provided at the four corners of the positioning plate 123, and positioning holes b can be provided at the bottom of the positioning groove 111. The positioning holes b correspond one-to-one with the connecting holes a. Screws or bolts or other locking devices are inserted into the connecting holes a and the positioning holes b to mechanically fix the positioning plate 123 in the positioning groove 111.

[0097] Since the cantilever bracket is located on the side of the fixed base 110 facing the spoiler 300, in order to prevent the cantilever bracket from coming out of the positioning groove 111 of the fixed base 110, the opening of the positioning groove 111 can be opened on the side of the fixed base 110 away from the mounting part 211. The side surface of the positioning groove 111 near the inner wall of the mounting part 211 forms the bottom of the positioning groove 111. The side surface of the positioning plate 123 facing the free end of the bracket body 121 abuts against the bottom of the positioning groove 111 to limit the cantilever bracket 120 and prevent the cantilever bracket 120 from coming out of the spoiler 300.

[0098] Continue to refer to Figure 9 As shown, since the bottom of the positioning groove 111 is located on the side of the positioning plate 123 facing the bracket body 121, in order to avoid the bracket body 121, the bottom of the positioning groove 111 is provided with an avoidance notch 1111. The avoidance notch 1111 corresponds to the bracket body 121, and the bracket body 121 extends into the spoiler 300 through the avoidance notch 1111.

[0099] Furthermore, when assembling the cantilever bracket 120 and the fixed base 110, since the positioning plate 123 of the cantilever bracket 120 is located on the side of the fixed base 110 facing the mounting part 211, in order to insert the positioning plate 123 into the positioning groove 111 of the fixed base 110, the positioning groove 111 is connected to one end face of the fixed base 110 in the insertion direction of the positioning plate 123, and the side end face of the fixed base 110 forms an insertion port 1112, and the positioning plate 123 is inserted into the positioning groove 111 from the insertion port 1112.

[0100] For example, refer to Figure 9As shown, since the two ends of the fixing base 110 in the length direction are connected to the inner wall surface of the mounting part 211, it is not convenient to open the insertion port 1112 at the two ends of the fixing base 110 in the length direction. Therefore, the insertion port 1112 can be opened on one end face in the width direction of the fixing base 110. The positioning plate 123 of the cantilever bracket 120 is inserted into the positioning groove 111 through the insertion port 1112 along the width direction of the fixing base 110.

[0101] Regarding the connection between the fixing base 110 and the inner wall of the mounting part 211, refer to... Figure 9 and Figure 10 As shown, in one specific embodiment, the inner wall surface of the mounting part 211 has positioning holes b on both sides of the mounting hole 2111, and the two ends of the fixing seat 110 in the length direction are provided with connecting holes a. The connecting holes a and the positioning holes b correspond to each other. By inserting bolts or screws or other locking elements into the connecting holes a and the positioning holes b, the fixing seat 110 is mechanically connected to the mounting part 211.

[0102] Reference Figure 9 As shown, in order to prevent the fixing seat 110 from loosening, a back nut c can be pre-set on the side of the fixing seat 110 facing the mounting part 211. The back nut c is glued to the parts corresponding to the two connecting holes a. After the bolt passes through, it is locked and fixed by the back nut c. Then, a nut is put on the bolt and tightened to prevent the nut from loosening.

[0103] Figure 11 This is a schematic diagram of the antenna body provided in an embodiment of the present disclosure; Figure 12 for Figure 11 Exploded view; Figure 13 for Figure 6 Exploded view; Figure 14 for Figure 6 A bottom view.

[0104] Reference Figure 11 and Figure 12 As shown, in this embodiment, the antenna body 130 includes an antenna assembly 132, a circuit board assembly 131, and a shielding cover 133. The antenna assembly 132 and the shielding cover 133 are respectively connected to the two side surfaces of the circuit board assembly 131. Wherein, combined with Figure 6 As shown, the circuit board assembly 131 is fixedly connected to the support 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 shield 133 is located on the side of the circuit board assembly 131 facing the support portion 122.

[0105] Antenna assembly 132 is used to receive signals transmitted from satellites, such as GPS satellites, Beidou satellites, etc. Various circuits (hereinafter referred to as signal processing circuits) are formed on circuit board assembly 131 for processing the signals received by antenna assembly 132. After processing the signals received by antenna assembly 132, the signal processing circuits transmit the signals to the GPS receiver via signal line 134.

[0106] For example, the signal processing circuit formed on the circuit board assembly 131 may include a filtering circuit and a signal amplification circuit. The filtering circuit filters out other signals received by the antenna assembly 132 and retains the desired signal. Furthermore, the signal strength received by the antenna assembly 132 is usually relatively weak, so the signal amplification circuit needs to amplify the desired signal to increase its strength so that the GPS receiver can receive a clear signal and ensure the positioning accuracy of the GPS receiver.

[0107] GPS signals typically include several bands: L1, L2, and L5. L5 band signals are less commonly used due to their narrower band width; GPS receivers usually receive L1 and L2 band signals. Taking antenna assembly 132 as an example for receiving L1 and L2 band signals, the filtering circuit on circuit board assembly 131 is used to shield signals from bands other than L1 and L2, and the signal amplification circuit is used to amplify the L1 and L2 band signals.

[0108] Since the signal received by the antenna assembly 132 in the desired band has a large amount of noise after amplification, which will affect the clarity and accuracy of the signal, the circuit in the shield 133 needs to process the amplified signal to stabilize the waveform of the amplified signal and ensure that the GPS receiver can receive a stable and clear signal.

[0109] Reference Figure 12 As shown, in this embodiment, the circuit board assembly 131 may include a main board 1311 and at least one extension board 1312. The main board 1311 is the 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 the periphery of the main board 1311 and is vertically connected to the edge of the main board 1311. For example, the main board 1311 is used to cooperate with the support surface 122a of the support portion 122, and the extension board 1312 is connected to the side surface of the main board 1311 where the antenna assembly 132 is provided, and the extension board 1312 extends in a direction away from the support surface 122a.

[0110] Taking a rectangular planar shape of the motherboard 1311 as an example, four extension plates 1312 can be set on the four sides of the motherboard 1311, and the four extension plates 1312 can surround the motherboard 1311. Alternatively, a ring-shaped extension plate 1312 can be set along the circumferential edge of the motherboard 1311.

[0111] In practical applications, the components on the circuit board assembly 131 can all be arranged on the main board 1311, while the extension board 1312 only has circuits connected to the main board 1311. By setting the extension board 1312, the area of ​​the circuit board assembly 131 can be increased, improving the signal receiving capability of the antenna assembly 132. For example, the gain value for the lower frequency band L2 can be improved. At the same time, by making the extension board 1312 perpendicular to the main board 1311, the planar area of ​​the circuit board assembly 131 is determined by the main board 1311, and the extension board 1312 does not occupy additional planar space of the circuit board assembly 131, thus reducing the space occupied by the circuit board assembly 131.

[0112] Taking the antenna assembly 132 for receiving signals in the L1 and L2 bands as an example, the antenna assembly 132 may include a first ceramic sheet 1321 and a second ceramic sheet 1322. The first ceramic sheet 1321 and the second ceramic sheet 1322 are stacked in a direction perpendicular to the surface of the motherboard 1311. For example, the first ceramic sheet 1321 is connected to the motherboard 1311, and the second ceramic sheet 1322 is stacked on the first ceramic sheet 1321.

[0113] The first ceramic plate 1321 and the second ceramic plate 1322 are used to primarily receive signals in the L1 and L2 bands, respectively. The planar dimensions of the first ceramic plate 1321 and the second ceramic plate 1322 are different, corresponding to the frequencies of the L1 and L2 bands. For example, the cross-sectional area of ​​the first ceramic plate 1321 can be larger than that of the second ceramic plate 1322.

[0114] It is understood that if the antenna assembly 132 is also used to receive signals in other bands, the antenna assembly 132 may also include a third ceramic sheet, a fourth ceramic sheet, etc., based on the first ceramic sheet 1321 and the second ceramic sheet 1322. Each ceramic sheet can be stacked. This embodiment does not impose specific limitations.

[0115] Continue to refer to Figure 12As shown, taking the antenna assembly 132, which includes a stacked first ceramic sheet 1321 and a second ceramic sheet 1322, as an example, to achieve the assembly and fixation of the antenna assembly 132, the first ceramic sheet 1321 and the second ceramic sheet 1322 can be provided with through fixing holes 1323. A fixing member 1324 passes through the fixing hole 1323, fixing the first ceramic sheet 1321 and the second ceramic sheet 1322 together. Furthermore, the fixing member 1324 can also fix the antenna assembly 132 to the main board 1311. For example, the fixing member 1324 can be a screw or bolt or other locking device that passes through the fixing hole 1323.

[0116] As for the electrical connection between the antenna assembly 132 and the circuit board assembly 131, multiple probes can be inserted inside the antenna assembly 132, and the probes can contact the signal processing circuit on the circuit board assembly 131 to conduct electricity between the antenna assembly 132 and the signal processing circuit. For example, four probes can be evenly spaced circumferentially on the antenna assembly 132.

[0117] Reference Figure 13 As shown, in order to improve the signal receiving capability of the antenna assembly 132, in this embodiment, a support plate 140 is also installed on the support surface 122a of the cantilever bracket 120 support portion 122, and the antenna body 130 is fixedly connected to the support portion 122 through the support plate 140. Wherein, combined with Figure 6 and Figure 13 As shown, one side surface of the support plate 140 is attached to the support surface 122a, and the main board 1311 of the circuit board assembly 131 is attached to the side surface of the support plate 140 away from the support part 122a.

[0118] The support plate 140 can be a metal plate, such as an aluminum plate or an aluminum alloy plate. Furthermore, the cross-sectional area of ​​the support plate 140 is larger than the cross-sectional area of ​​the antenna body 130; that is, the cross-sectional area of ​​the support plate 140 is larger than the cross-sectional area of ​​the main board 1311 mounted on its surface. In this way, the support plate 140 can increase the signal gain value and improve the signal processing capability of the antenna body 130. Additionally, the area of ​​the support plate 140 exposed outside the main board 1311 can be used to fix the support plate 140 to the support portion 122.

[0119] Additionally, refer to Figure 13As shown, since a shielding cover 133 is connected to the side surface of the main board 1311 of the circuit board assembly 131 facing the support portion 122, and the main board 1311 is mounted on the support plate 140, the support plate 140 can be configured as an annular member, with the shielding cover 133 passing through the annular void area enclosed by the support plate 140. Furthermore, since the support plate 140 is very thin, its thickness is insufficient to accommodate the shielding cover 133. Therefore, the support portion 122 can also be designed as a hollow structure, including an outer ring portion 1221. The area enclosed by the outer ring portion 1221 is a hollow area, and the shielding cover 133 extends into the hollow area enclosed by the outer ring portion 1221. (Refer to...) Figure 14 As shown, the shield 133 is exposed in the hollow area of ​​the support portion 122 of the cantilever bracket 120.

[0120] Reference Figure 13 As shown, regarding the connection between the antenna body 130 and the support plate 140, a connecting hole (not shown in the figure) can be opened on the main board 1311 of the antenna body 130 near the extension plate 1312. A positioning hole b is provided on the support plate 140 at the location corresponding to the connecting hole of the main board 1311. By inserting screws or rivets or other locking components into the connecting hole and the positioning hole b, the antenna body 130 is mechanically connected to the support plate 140.

[0121] As for the connection between the support plate 140 and the support portion 122, for example, the four corners of the support plate 140 may be provided with connecting holes a, and the outer ring portion 1221 of the support portion 122 may be provided with positioning holes b. The positioning holes b correspond one-to-one with the connecting holes a. By inserting screws or bolts or other locking components into the connecting holes a and the positioning holes b, the mechanical connection between the support plate 140 and the support portion 122 can be achieved.

[0122] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A vehicle-mounted antenna, characterized in that, The spoiler installed on the tailgate includes: a mounting base, a cantilever bracket, and the antenna body; The tailgate includes a mounting part, the spoiler is connected to the outer wall of the mounting part, and the spoiler and the mounting part enclose a mounting cavity; the fixing seat is connected to the inner wall of the mounting part, the cantilever bracket includes a bracket body, the two ends of the bracket body are a fixed end and a free end, the fixed end is connected to the fixing seat, the bracket body extends into the mounting cavity, and the antenna body is fixed to the free end; The mounting part is provided with at least one mounting hole, the fixing end is connected to the part of the fixing seat corresponding to the mounting hole, and the two ends of the fixing seat are respectively connected to the parts on both sides of the mounting hole on the inner wall surface of the mounting part; The bracket body includes a connected support section and a guide section, the fixed end is the end of the support section away from the guide section, and the free end is the end of the guide section away from the support section; The supporting section is perpendicular to the fixing seat connected to the inner wall of the mounting part, and the guide section has an angle with the supporting section. The guide section extends along the width direction of the tailgate and extends laterally in the width direction of the tailgate. The guide section is used to guide and position the antenna body inside the spoiler. The fixing base is provided with a positioning groove corresponding to the mounting hole, and the fixing end is provided with a positioning plate. The positioning plate is inserted into the positioning groove and fixedly connected to the fixing base. The opening of the positioning groove is located on the side of the fixed base away from the mounting part, the surface of the positioning plate facing the free end abuts against the bottom of the positioning groove, and the bottom of the positioning groove is provided with a clearance notch, through which the bracket body passes. The positioning groove is connected to one end face of the fixed base and forms an insertion port, and the positioning plate is inserted into the positioning groove through the insertion port.

2. The vehicle-mounted antenna according to claim 1, characterized in that, The free end is provided with a support portion, the support portion has a support surface, the support surface is the side surface of the support portion that is away from the ground, and the antenna body is mounted on the support surface.

3. The vehicle-mounted antenna according to claim 2, characterized in that, It also includes a support plate, which is mounted on the support surface, and the antenna body is attached to the side surface of the support plate opposite to the support portion.

4. The vehicle-mounted antenna according to claim 3, characterized in that, 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.

5. The vehicle-mounted antenna according to claim 3, characterized in that, The supporting part includes an outer ring part, the area enclosed by the outer ring part is a hollow area, and the edge of the support plate overlaps the outer ring part.

6. The vehicle-mounted antenna according to claim 5, characterized in that, The antenna body includes a circuit board assembly, an antenna assembly, and a shielding cover; The circuit board assembly is mounted on the support plate, the antenna assembly is connected to the side surface of the circuit board assembly facing away from the support plate, and the shielding cover is connected to the side surface of the circuit board assembly facing the support portion, and the shielding cover is located in the hollow area.

7. The vehicle-mounted antenna according to claim 6, characterized in that, The circuit board assembly includes a motherboard and at least one extension board. The motherboard is mounted on the support plate, the antenna assembly is connected to the motherboard, and the extension board is perpendicularly connected to the edge of the motherboard and surrounds the periphery of the motherboard.

8. The vehicle-mounted antenna according to claim 6, characterized in that, The antenna assembly includes at least a first ceramic sheet and a second ceramic sheet, which are stacked in a direction perpendicular to the surface of the support plate.

9. A tailgate for a vehicle, characterized in that, Includes a door panel, a spoiler, and at least one vehicle-mounted antenna as described in any one of claims 1-8; The door panel includes a mounting part, the spoiler is connected to the outer wall of the mounting part, the spoiler and the mounting part enclose to form a mounting cavity, and the vehicle antenna is mounted on the inner wall of the mounting part and extends into the mounting cavity.

10. The tailgate according to claim 9, characterized in that, The number of vehicle-mounted antennas is two, and the two vehicle-mounted antennas are respectively located on both sides of the door panel in the width direction.

11. The tailgate according to claim 10, characterized in that, The antenna bodies of the two vehicle-mounted antennas are symmetrical about the central axis of the door panel.

12. The tailgate according to claim 9, characterized in that, The number of vehicle-mounted antennas is three, and the three vehicle-mounted antennas are spaced apart along the width direction of the door panel.

13. The tailgate according to any one of claims 10-12, characterized in that, The spacing between the antenna bodies of adjacent vehicle-mounted antennas is greater than or equal to 60cm.

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