Vehicle integrated antenna and autonomous vehicle

Abstract

The present disclosure relates to a kind of vehicle integrated antenna and automatic driving vehicle, it is related to automatic driving and antenna field of technology.The vehicle integrated antenna is installed on the roof of vehicle, including: antenna box and the GNSS antenna, V2X antenna and 5G antenna component arranged in antenna box;GNSS antenna is installed on the inner bottom wall of antenna box, V2X antenna is set on the top end surface of GNSS antenna and away from inner bottom wall;5G antenna component is vertically set on inner bottom wall, including first group and second group, first group is located at the first side of GNSS antenna, and second group is located at the second side of GNSS antenna and opposite to first side;Wherein, first group includes two pieces of first antenna and is arranged at interval, and second group includes two pieces of second antenna and is arranged at interval.The vehicle integrated antenna can meet the communication needs in many aspects, and internal layout is reasonable, and small in size.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automatic driving and antennas, in particular, relates to a vehicle integrated antenna and an automatic driving vehicle. BACKGROUND

[0002] Various different types of antennas are used in the automotive industry, including AM / FM radio antennas, satellite digital audio radio service (SDARS) antennas, global navigation satellite system (GNSS) antennas, cellular antennas, and the like. Multi-band antenna assemblies are also commonly used in the automotive industry, which include multiple antennas that cover and operate at multiple frequency ranges.

[0003] Automotive antennas can be mounted on the surface of a vehicle, for example, the antennas can be mounted on the roof, trunk, or hood of a vehicle to ensure that the antennas have an unobstructed view upward or toward the sky. The antennas can be connected to one or more electronic devices (e.g., radio receivers, touch screen displays, navigation devices, cellular phones, etc.) inside the vehicle cabin by means of a coaxial cable or the like, so that the multi-band antenna assembly can operate to transmit and / or receive signals to and from the electronic devices inside the vehicle. SUMMARY

[0004] The present disclosure provides a vehicle integrated antenna and an automatic driving vehicle, the vehicle integrated antenna integrates multiple antennas, can meet various communication needs, and has reasonable internal layout and small size.

[0005] In one aspect, the present disclosure provides a vehicle integrated antenna mounted on the roof of a vehicle, comprising: an antenna box and a GNSS antenna, a V2X antenna and a 5G antenna assembly arranged in the antenna box;

[0006] The GNSS antenna is mounted on the inner bottom wall of the antenna box, and the V2X antenna is arranged on the top end surface of the GNSS antenna away from the inner bottom wall; the 5G antenna assembly is vertically arranged on the inner bottom wall and includes a first group and a second group, the first group is located on a first side of the GNSS antenna, and the second group is located on a second side of the GNSS antenna opposite to the first side.

[0007] The first group includes two first antennas arranged at intervals, and the second group includes two second antennas arranged at intervals.

[0008] The vehicle-mounted integrated antenna provided by the present disclosure can meet various communication requirements by integrating the GNSS antenna, the V2X antenna and the 5G antenna assembly in the antenna box. The V2X antenna is arranged at the middle region of the length direction of the antenna box and integrated on the top of the GNSS antenna, so that the transmitting and receiving capabilities of the V2X antenna can be ensured without obvious influence on the GNSS antenna. The first group and the second group of the 5G antenna assembly are arranged on the two sides of the GNSS antenna respectively, and the GNSS antenna is isolated between the first group and the second group, so that the mutual influence between the first group and the second group can be avoided. The two first antennas of the first group are arranged in a spaced manner, and the two second antennas of the second group are arranged in a spaced manner, so that the interference between the two first antennas and the two second antennas can be avoided.

[0009] In addition, on the basis of ensuring that various antennas do not produce obvious interference, the layout in the antenna box is compact and reasonable, the V2X antenna arranged on the top of the GNSS antenna does not occupy additional planar space of the antenna box, and the 5G antenna assembly arranged on the two sides of the GNSS antenna does not occupy additional width space of the antenna box. The volume of the antenna box is small, the shape of the antenna box matches the shape of the roof of the vehicle, and the appearance effect is good.

[0010] In a possible implementation, the first antenna and the second antenna are both in the shape of a rectangular sheet, and the two first antennas are arranged in a spaced manner along the extension direction of the first side, and the two second antennas are arranged in a spaced manner along the extension direction of the second side.

[0011] In a possible implementation, the length of the first antenna is smaller than the length of the second antenna, and the height of the first antenna is smaller than the height of the second antenna.

[0012] In a possible implementation, the first group is located at one end of the antenna box facing the front of the vehicle, and the second group is located at one end of the antenna box facing the rear of the vehicle.

[0013] In a possible implementation, the two first antennas are symmetrically and obliquely arranged relative to the center line of the antenna box, the side of the two first antennas close to each other is away from the GNSS antenna, and the side of the two first antennas far from each other is close to the GNSS antenna.

[0014] In a possible implementation, the two second antennas are symmetrically and obliquely arranged relative to the center line of the antenna box, the side of the two second antennas close to each other is away from the GNSS antenna, and the side of the two second antennas far from each other is close to the GNSS antenna.

[0015] In a possible implementation, the first group further includes a first substrate, the first substrate is connected to the inner bottom wall, and the two first antennas are vertically arranged on the first substrate.

[0016] The second group further comprises a second substrate connected to the inner bottom wall, and the two second antennas are vertically arranged on the second substrate.

[0017] In a possible implementation, the GNSS antenna comprises a circuit board assembly, an antenna block assembly and a shielding cover, the circuit board assembly is supported on the inner bottom wall, the antenna block assembly is connected to a side surface of the circuit board assembly away from the inner bottom wall, and the shielding cover is connected to a side surface of the circuit board assembly facing the inner bottom wall.

[0018] In a possible implementation, the circuit board assembly comprises a main board and at least one extension board, the antenna block assembly is connected to the main board, the extension board is vertically connected to an edge of the main board, and the extension board surrounds a circumferential side of the main board.

[0019] In a possible implementation, the main board is in a rectangular plate shape, and four extension boards are respectively arranged on four circumferential sides of the main board.

[0020] In a possible implementation, the antenna block assembly comprises at least a first ceramic block and a second ceramic block, the first ceramic block is attached to the main board, and the second ceramic block is stacked on a side surface of the first ceramic block away from the main board.

[0021] In a possible implementation, the V2X antenna comprises a support plate and at least one antenna column, the support plate is attached to a top end surface of the GNSS antenna, and the antenna column is vertically arranged on a side surface of the support plate away from the GNSS antenna.

[0022] In a possible implementation, the support plate covers a middle region of the top end surface of the GNSS antenna.

[0023] In a possible implementation, the V2X antenna comprises one antenna column, and further comprises two auxiliary electrodes vertically arranged on the support plate, the two auxiliary electrodes are respectively located on two sides of the antenna column in a width direction of the corresponding vehicle.

[0024] In a possible implementation, the vehicle-mounted integrated antenna further comprises at least one of a Bluetooth antenna and a WiFi antenna, and the Bluetooth antenna and / or the WiFi antenna are arranged on a side of the corresponding 5G antenna assembly of the GNSS antenna.

[0025] In a possible implementation, the Bluetooth antenna and the WiFi antenna are integrated, and are arranged on a side of the first antenna or the second antenna facing the GNSS antenna.

[0026] In a possible implementation, the antenna box comprises a shell and a base that are buckled to each other, the base is fixed to the roof, the shell is located on a side of the base away from the roof, and the GNSS antenna and the 5G antenna assembly are installed on the inner bottom wall of the base.

[0027] In a possible implementation, the inner bottom wall of the base is provided with an annular support wall, and the GNSS antenna is supported at the top end of the annular support wall.

[0028] In a possible implementation, the shell comprises a top wall portion and a side wall portion surrounding the circumferential edge of the top wall portion, and the side wall portion is connected to the edge of the base in a snap-fit manner.

[0029] In a possible implementation, the side wall portion comprises an outer layer wall and an inner layer wall located inside the outer layer wall, and the inner bottom wall of the base is provided with a first annular groove in the region close to the edge;

[0030] The outer layer wall is attached to the outer wall surface of the side wall of the base, the inner layer wall extends into the first annular groove, and the gap between the first annular groove and the inner layer wall is filled with sealant.

[0031] In a possible implementation, the side wall portion further comprises a middle layer wall located between the outer layer wall and the inner layer wall, and the inner bottom wall of the base is further provided with a second annular groove, the second annular groove is provided with a sealing ring, and the middle layer wall abuts against the sealing ring.

[0032] In a possible implementation, the inner bottom wall of the base is provided with a first annular wall and a second annular wall in the region close to the edge, and the second annular wall surrounds the outer side of the first annular wall.

[0033] The first annular wall, the second annular wall, and the inner bottom wall of the base jointly form the first annular groove, and the second annular wall, the side wall of the base, and the inner bottom wall of the base jointly form the second annular groove.

[0034] In a possible implementation, the base is provided with a breather valve, and the breather valve communicates the inside of the antenna box with the outside.

[0035] In a possible implementation, the breather valve is located on the side of the first antenna facing the GNSS antenna, or the breather valve is located on the side of the second antenna facing the GNSS antenna.

[0036] In a possible implementation, the outer bottom wall of the base is provided with a connecting piece, and the connecting piece is connected to the roof of the vehicle.

[0037] In a possible implementation, the vehicle-mounted integrated antenna further comprises a cushion pad, and the cushion pad is attached to the outer bottom wall of the base.

[0038] On the other hand, the present disclosure provides an autonomous vehicle comprising a vehicle body and at least two vehicle-mounted integrated antennas as described above.

[0039] The vehicle body comprises a roof, and the vehicle-mounted integrated antennas are mounted on the roof.

[0040] The automatic driving vehicle provided by the present disclosure is provided with two or more vehicle-mounted integrated antennas on the roof of the vehicle body. The vehicle-mounted integrated antenna is provided with a GNSS antenna, a V2X antenna and a 5G antenna assembly in the antenna box, so that the vehicle-mounted integrated antenna can meet the communication requirements in multiple aspects. The GNSS antenna is arranged in the middle region of the length direction of the antenna box, and the V2X antenna is integrated on the top of the GNSS antenna, so that the ability of the V2X antenna to transmit and receive signals can be guaranteed, and the GNSS antenna is not obviously affected. The first group and the second group of the 5G antenna assembly are arranged on the two sides corresponding to the GNSS antenna respectively, the GNSS antenna is isolated between the first group and the second group, and the mutual influence between the first group and the second group can be avoided. The two first antennas of the first group are arranged at intervals, and the two second antennas of the second group are arranged at intervals, so that the interference between the two first antennas and the two second antennas can be avoided.

[0041] In addition, on the basis of ensuring that no obvious interference is generated between various antennas, the layout in the antenna box is compact and reasonable, the V2X antenna arranged on the top of the GNSS antenna does not occupy additional planar space of the antenna box, and the 5G antenna assembly arranged on the two sides of the GNSS antenna does not occupy additional width space of the antenna box. The volume of the antenna box is small, the shape of the antenna box matches the shape of the roof, and the appearance effect is good.

[0042] In a possible implementation, two vehicle-mounted integrated antennas are arranged on the roof, and the two vehicle-mounted integrated antennas are arranged close to the two sides of the roof in the width direction.

[0043] In a possible implementation, the two vehicle-mounted integrated antennas are symmetrically arranged with the center line of the roof as the symmetric axis.

[0044] In a possible implementation, the distance between the two vehicle-mounted integrated antennas is greater than or equal to 60 cm.

[0045] It should be understood that the content described in the summary section is not intended to limit the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0046] The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by describing in detail the following embodiments with reference to the attached drawings. In the drawings, the same or similar reference numerals refer to the same or similar elements, and:

[0047] Figure 1 A front view of the vehicle-mounted integrated antenna provided for the first embodiment of the present disclosure;

[0048] Figure 2 A bottom view of the vehicle-mounted integrated antenna provided for the first embodiment of the present disclosure;

[0049] Figure 3 An exploded view of the vehicle integrated antenna provided for Embodiment One of the present disclosure;

[0050] Figure 4 An exploded view of the antenna box provided for Embodiment One of the present disclosure;

[0051] Figure 5 A structural schematic diagram of the antenna box provided for Embodiment One of the present disclosure; Figure 4 A structural schematic diagram of the antenna box provided for Embodiment One of the present disclosure;

[0052] Figure 6 An exploded view of the antenna box provided for Embodiment One of the present disclosure; Figure 5 An exploded view of the antenna box provided for Embodiment One of the present disclosure;

[0053] Figure 7 A structural schematic diagram of the GNSS antenna provided for Embodiment One of the present disclosure;

[0054] Figure 8 An exploded view of the antenna box provided for Embodiment One of the present disclosure; Figure 7

[0055] A structural schematic diagram of the V2X antenna provided for Embodiment One of the present disclosure; Figure 9

[0056] An assembled exploded view of the 5G antenna assembly and the base provided for Embodiment One of the present disclosure; Figure 10

[0057] A sectional view of A-A in the antenna box provided for Embodiment One of the present disclosure; Figure 11 Figure 1 An exploded view of the antenna box provided for Embodiment One of the present disclosure, with various antennas removed;

[0058] Figure 12 A structural schematic diagram of the shell of the antenna box provided for Embodiment One of the present disclosure;

[0059] Figure 13 A structural schematic diagram of the base of the antenna box provided for Embodiment One of the present disclosure;

[0060] Figure 14 A partial enlarged view of A in the antenna box provided for Embodiment One of the present disclosure;

[0061] Figure 15 Figure 11 A partial enlarged view of A in the antenna box provided for Embodiment One of the present disclosure;

[0062] Explanation of reference signs:

[0063] 1 - vehicle integrated antenna;

[0064] 100 - antenna box; 200 - GNSS antenna; 300 - V2X antenna; 400 - 5G antenna assembly; 500 - Bluetooth / WiFi integrated antenna; 600 - cushion;

[0065] ​​110 - housing; 120 - base; 210 - circuit board assembly; 220 - antenna block assembly; 230 - shield; 310 - support plate; 320 - antenna post; 330 - auxiliary electrode; 410 - first group; 420 - second group; 610 - mounting hole; 620 - avoidance hole;

[0066] 111 - top wall part; 112 - side wall part; 113 - mounting post; 114 - reinforcing rib; 121 - inner bottom wall; 122 - side wall; 123 - annular support wall; 124 - first annular wall; 125 - second annular wall; 126 - sealing ring; 127 - breather valve; 128 - connecting piece; 211 - main plate; 212 - extension plate; 221 - first ceramic block; 222 - second ceramic block; 411 - first antenna; 412 - first substrate; 421 - second antenna; 422 - second substrate;

[0067] 1121 - outer layer wall; 1122 - inner layer wall; 1123 - middle layer wall; 1211 - mounting position; 1221 - positioning hole; 4121 - avoidance notch;

[0068] A - first annular groove; B - second annular groove. DETAILED DESCRIPTION

[0069] Exemplary embodiments of the present disclosure are described herein with reference to the accompanying drawings, which are included to provide a thorough understanding of embodiments of the present disclosure, and are taken in conjunction with the following Description. Accordingly, those of ordinary skill in the art will recognize that there are numerous variations and modifications that can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. As well, in the interest of clarity, not all of the custom functionality and structure are described herein.

[0070] Embodiment One

[0071] With the rapid development of intelligent networking of automobiles, electronic devices in automobiles, such as radio receivers, touch screen displays, navigation devices, cellular phones, etc., also integrate more and more wireless communication functions.

[0072] As an important hardware basis for ensuring automobile communication, the vehicle-mounted antenna is usually installed on the roof of the automobile, used for receiving external signals or sending signals to the outside world, and realizing the communication between the automobile and the outside world. However, in the related art, the vehicle-mounted antenna cannot meet the multi-aspect communication needs of the automobile, and the internal layout structure of the vehicle-mounted antenna is unreasonable, and the volume is large, which cannot meet the requirements of the automobile.

[0073] To this end, the embodiment provides a vehicle-mounted integrated antenna, which can meet various communication requirements by arranging GNSS antennas, V2X antennas and 5G antenna assemblies in an antenna box. Moreover, the volume of the vehicle-mounted integrated antenna is reduced on the basis of meeting the condition that the antennas have no obvious influence on each other, and the vehicle-mounted integrated antenna is compact in shape and can meet the requirements of a vehicle.

[0074] Figure 1 A front view of the vehicle-mounted integrated antenna provided in the first embodiment of the present disclosure is shown in Figure 2 A bottom view of the vehicle-mounted integrated antenna provided in the first embodiment of the present disclosure is shown in Figure 3 An exploded view of the vehicle-mounted integrated antenna provided in the first embodiment of the present disclosure is shown in

[0075] Referring to Figure 1 and Figure 2 , the vehicle-mounted integrated antenna 1 comprises an antenna box 100, which is usually installed on the roof of a vehicle. For example, the antenna box 100 can be installed on the rear side of the roof, and the top end of the antenna box 100 is located at the highest position of the vehicle body, so as to facilitate the vehicle-mounted integrated antenna 1 to receive signals.

[0076] It should be noted that the vehicle mentioned herein can include a car, an SUV (Sport Utility Vehicle), an off-road vehicle, a truck, a truck, a passenger car and the like, and the present embodiment does not make specific limitation thereon. Hereinafter, the vehicle is taken as a car, an SUV or an off-road vehicle as an example for description.

[0077] The bottom of the antenna box 100 can be provided with a connecting piece 128, and the antenna box 100 is fixedly installed on the roof through the connecting piece 128. The connecting piece 128 is, for example, a bolt, and the bolt at the bottom of the antenna box 100 passes through a reserved hole in the roof. A nut (not shown in the figure) is sleeved on the outer wall of the bolt, and the nut is located on the inner side of the roof. By tightening the nut, the antenna box 100 is locked on the roof.

[0078] Referring to Figure 3 , the antenna box 100 comprises an outer shell 110 and a base 120, and the outer shell 110 and the base 120 are mutually buckled. The base 120 faces the roof, and the antenna box 100 is fixed on the roof through the base 120. The connecting piece 128 (for example, a bolt) is installed on the outer bottom wall of the base 120 facing the roof, and the material of the base 120 can be metal or plastic. The outer shell 110 is located on the side of the base 120 away from the roof, and the outer shell 110 faces the sky. The antennas arranged in the antenna box 100 are all installed on the base 120, and the outer shell 110 is usually a plastic shell. For example, the material of the outer shell 110 is polycarbonate (PC), so as to prevent the outer shell 110 from affecting the reception of signals by the antennas in the antenna box 100.

[0079] In addition, the connecting member 128 connected to the base 120 can be a hollow columnar structure, for example, the connecting member 128 is a hollow bolt, a signal line (not shown in the figure) of the vehicle integrated antenna 1 is arranged in the connecting member 128, one end of the signal line extends into the antenna box 100 and is connected with the antenna in the antenna box 100, and the other end of the signal line is routed to the roof of the vehicle and is connected with electronic equipment in the vehicle, for example, a radio receiver, a touch screen display, a navigation device, or a cellular phone.

[0080] Since the roof of the vehicle is usually a curved surface structure and is not a flat plane structure, in combination with the above description, the base 120 of the vehicle integrated antenna 1 is designed to be a hollow columnar structure, for example, the base 120 is a hollow bolt, and the signal line of the vehicle integrated antenna 1 is arranged in the base 120. Figure 2 Figure 3 As shown in FIGS. 1, 2, and 3, in the embodiment, the vehicle integrated antenna 1 further comprises a buffer pad 600, which is attached to the side surface of the antenna box 100 facing the roof, that is, the buffer pad 600 is attached to the outer bottom wall of the base 120. The buffer pad 600 is provided with a mounting hole 610 for avoiding the connecting member 128 on the base 120, and when the buffer pad 600 is attached, the mounting hole 610 on the buffer pad 600 passes through the connecting member 128 and is attached to the outer bottom wall of the base 120.

[0081] The buffer pad 600 has good compression deformation capability, for example, the buffer pad 600 can be a silica gel pad or a rubber pad, and the buffer pad 600 can be bonded to the outer bottom wall of the base 120 by glue. When the antenna box 100 is installed to the roof, the pressure generated between the base 120 and the roof can extrude the buffer pad 600, the buffer pad 600 is compressed and deformed, and the stable installation of the antenna box 100 can be ensured. In addition, the flexible buffer pad 600 can increase the friction between the antenna box 100 and the roof, and the reliability of the antenna box 100 can be enhanced. In addition, the buffer pad 600 is arranged between the base 120 and the roof, so that the base 120 is prevented from directly contacting the roof and scratching therebetween.

[0082] For example, the compression space of the buffer pad 600 can be 0-3 mm, that is, for the curved surface region on the roof where the vehicle integrated antenna 1 is installed, the vehicle integrated antenna 1 can be adapted to a range within 3 mm of the height difference between the lowest point and the highest point.

[0083] The antennas arranged in the antenna box 100 will be described in detail below.

[0084] Figure 4 An exploded view of the antenna box provided in Embodiment One of the present disclosure; Figure 5 An exploded view of the antenna box provided in Embodiment One of the present disclosure; Figure 4 A structural schematic view of the antenna box provided in Embodiment One of the present disclosure after removing the shell; Figure 6 An exploded view of the antenna box provided in Embodiment One of the present disclosure; Figure 5 An exploded view of the antenna box provided in Embodiment One of the present disclosure.

[0085] Referring to​Figure 4 As shown, a plurality of antennas are arranged in the antenna box 100, and the antennas arranged in the antenna box 100 include a GNSS antenna 200, a V2X antenna 300 and a 5G antenna assembly 400. The GNSS antenna 200, the V2X antenna 300 and the 5G antenna assembly 400 are all mounted on the base 120, and the shell 110 is buckled on the base 120 to seal these antennas inside the antenna box 100.

[0086] Wherein, GNSS is the abbreviation of Global Navigation Satellite System, which means Global Navigation Satellite System in Chinese.

[0087] V2X means vehicle to everything, that is, information exchange between vehicles and the outside world, mainly including V2V (vehicle to vehicle), V2I (vehicle to infrastructure), V2P (vehicle to people) and V2N (vehicle to network). That is, vehicles communicate with other surrounding vehicles, people and things through sensors and network communication technology, and analyze and make decisions according to the collected information.

[0088] 5G is the full name of 5th Generation Mobile Communication Technology, that is, the 5th generation mobile communication technology.

[0089] The GNSS antenna is mainly used for receiving signals, the V2X antenna can be used for transmitting signals and receiving signals, and the 5G antenna assembly can be used for transmitting signals and receiving signals.

[0090] In combination with Figure 5 and Figure 6 As shown, the GNSS antenna 200 is mounted on the inner bottom wall 121 of the base 120; the V2X antenna 300 is mounted on the top of the GNSS antenna 200, that is, the V2X antenna 300 is mounted on the top end face of the GNSS antenna 200 away from the base 120; the 5G antenna assembly 400 includes two groups, which are the first group 410 and the second group 420. The first group 410 and the second group 420 are both mounted on the inner bottom wall 121 of the base 120, and the first group 410 and the second group 420 are respectively located on the opposite sides of the GNSS antenna 200.

[0091] The first group 410 of the 5G antenna assembly 400 includes two pieces of first antennas 411, both of which are located on the first side of the GNSS antenna 200 and are arranged at intervals. The second group 420 of the 5G antenna assembly 400 includes two pieces of second antennas 421, both of which are located on the second side of the GNSS antenna 200 opposite the first side and are arranged at intervals. In actual application, the first antennas 411 and the second antennas 421 are respectively used to receive signals of different frequency bands.

[0092] Figure 7 A structural schematic diagram of the GNSS antenna provided by Embodiment One of the present disclosure is shown in Figure 8 A structural schematic diagram of the GNSS antenna provided by Embodiment One of the present disclosure is shown in Figure 7 An exploded view of the GNSS antenna is shown in Figure 7 An exploded view of the GNSS antenna is shown in Figure 8 As shown in

[0093] As shown in Figure 6 An exploded view of the GNSS antenna is shown in Figure 7 As shown in

[0094] Various circuits (hereinafter referred to as signal processing circuits) for processing the signals received by the antenna block assembly 220 are formed on the circuit board assembly 210. After the signals received by the antenna block assembly 220 are processed by the signal processing circuits, the signals are transmitted to the electronic equipment in the vehicle through the signal lines. For example, the signal processing circuits formed on the circuit board assembly 210 can include a filter circuit and a signal amplification circuit. The filter circuit filters out other signals received by the antenna block assembly 220 and retains the desired signals. In addition, the strength of the signals received by the antenna block assembly 220 is usually weak, and the signal amplification circuit is needed to amplify the desired signals and increase the signal strength so that the GPS receiver can receive clear signals and ensure the positioning accuracy of the GPS receiver.

[0095] The GPS signal usually includes L1, L2 and L5 bands, wherein the L5 band signal is less used due to narrow band, and the GPS receiver usually receives the L1 and L2 band signals. Taking the antenna block assembly 220 for receiving the L1 and L2 band signals as an example, the filter circuit on the circuit board assembly 210 is used to shield signals of other bands except L1 and L2, and the signal amplification circuit is used to amplify the L1 and L2 band signals.

[0096] Since the required band signal received by the antenna block assembly 220 is amplified, the noise of the signal is large, which affects the clarity and accuracy of the signal. At this time, the circuit in the shielding cover 230 needs to process the amplified signal to smooth the waveform of the amplified signal, so that the GPS receiver can receive a smooth and clear signal.

[0097] Referring to Figure 8 In the embodiment, the circuit board assembly 210 can include a main board 211 and at least one extension board 212. The main board 211 is the main structure of the circuit board assembly 210, and the main board 211 is connected to the inner bottom wall 121 of the base 120. The antenna block assembly 220 is arranged on the side surface of the main board 211 facing the shell 110, and the shielding cover 230 is arranged on the side surface of the main board 211 facing the inner bottom wall 121 of the base 120. The extension board 212 surrounds the circumferential side of the main board 211 and is connected perpendicularly to the edge of the main board 211.

[0098] For example, since the antenna block assembly 220 is arranged on the side surface of the main board 211 facing the shell 110, the space between the main board 211 and the shell 110 is large, which facilitates the arrangement of the extension board 212. Therefore, the extension board 212 can be connected to the side surface of the main board 211 where the antenna block assembly 220 is arranged, that is, the extension board 212 extends out of the shell 110.

[0099] For example, taking the planar shape of the main board 211 as a rectangle, referring to Figure 8 As shown in the figure, four extension boards 212 can be arranged on the circumferential four sides of the main board 211, and the four extension boards 212 surround the circumference of the main board 211. In other embodiments, a ring-shaped extension board 212 can also be arranged along the circumferential edge of the main board 211.

[0100] In actual application, the components arranged on the circuit board assembly 210 can be arranged on the main board 211, and only the circuit connected to the main board 211 is formed on the extension board 212. By arranging the extension board 212, the area of the circuit board assembly 210 can be increased, and the signal receiving capability of the antenna block assembly 220 can be improved. For example, the gain value of the L2 with lower frequency band can be improved.

[0101] And, by making the extension plate 212 perpendicular to the main plate 211, the area of the circuit board assembly 210 in the plane direction is determined by the main plate 211, the extension plate 212 does not occupy extra plane space of the circuit board assembly 210, and the occupied space of the circuit board assembly 210 can be reduced. In combination Figure 4 And Figure 5 As shown in

[0102] Continuing to refer to Figure 8 As an example in which the antenna block assembly 220 is used to receive signals of L1 and L2 bands, the antenna block assembly 220 can include a first ceramic block 221 and a second ceramic block 222, and the first ceramic block 221 and the second ceramic block 222 are arranged in a direction perpendicular to the plane of the main plate 211, for example, the first ceramic block 221 is attached to the main plate 211, and the second ceramic block 222 is stacked on the side surface of the first ceramic block 221 away from the main plate 211.

[0103] The first ceramic block 221 and the second ceramic block 222 are respectively used to mainly receive signals of L1 band and L2 band. Among them, corresponding to the frequencies of L1 band and L2 band, the plane sizes of the first ceramic block 221 and the second ceramic block 222 are different, for example, the surface area of the first ceramic block 221 can be greater than the surface area of the second ceramic block 222.

[0104] It can be understood that if the antenna block assembly 220 is also used to receive signals of other bands, in addition to the first ceramic block 221 and the second ceramic block 222, the antenna block assembly 220 can also include a third ceramic block, a fourth ceramic block, etc., and each ceramic block can be arranged in a stacked manner, and the present embodiment is not specifically limited.

[0105] As for the electrical connection between the antenna block assembly 220 and the main plate 211, a plurality of probes can be inserted in the antenna block assembly 220, and as an example in which the antenna block assembly 220 includes the first ceramic block 221 and the second ceramic block 222 stacked, the probes pass through the second ceramic block 222 and the first ceramic block 221 to contact the signal processing circuit on the main plate 211 to conduct the antenna block assembly 220 and the signal processing circuit. As an example, four probes can be uniformly and circumferentially arranged on the antenna block assembly 220.

[0106] In combination Figure 6 And Figure 7As shown, since the side of the main plate 211 of the GNSS antenna 200 facing the inner bottom wall 121 of the base 120 is also provided with the shielding cover 230, in order to mount the GNSS antenna 200 on the inner bottom wall 121 of the base 120, in the embodiment, the inner bottom wall 121 of the base 120 is also provided with a ring-shaped support wall 123, and the main plate 211 of the GNSS antenna 200 is supported on the top end of the ring-shaped support wall 123, and the shielding cover 230 is accommodated in the space surrounded by the main plate 211, the ring-shaped support wall 123 and the inner bottom wall 121 of the base 120.

[0107] Among them, the ring-shaped support wall 123 not only can play a role in supporting the GNSS antenna 200, and by accommodating the shielding cover 230 in the space surrounded by the ring-shaped support wall 123, the ring-shaped support wall 123 plays a protective role for the shielding cover 230, which can prevent the influence of dust, water vapor and other foreign matters on the shielding cover 230.

[0108] For example, the ring-shaped support wall 123 can be a continuous and closed support wall, or the local area of the ring-shaped support wall 123 is disconnected with an opening, which is not limited in the embodiment. The main plate 211 of the GNSS antenna 200 can be locked on the ring-shaped support wall 123 by screws, rivets and other locking members, for example, a connecting hole (not shown in the figure) is arranged at the four corner portions of the main plate 211 and the four corner portions of the ring-shaped support wall 123, and a screw is threaded in the connecting hole to lock the GNSS antenna 200 on the ring-shaped support wall 123.

[0109] Figure 9 The structural schematic diagram of the V2X antenna provided by the first embodiment of the present disclosure is shown. In combination with the above description of the GNSS antenna 200, the V2X antenna 300 is shown in the following. Figure 5 and Figure 9 As shown, the V2X antenna 300 includes a support plate 310 and an antenna column 320, and the support plate 310 is attached to the top surface of the GNSS antenna 200. Taking the example that the antenna block assembly 220 of the GNSS antenna 200 includes the first ceramic block 221 and the second ceramic block 222 which are sequentially laminated on the main plate 211, the support plate 310 of the V2X antenna 300 can be attached to the top surface of the second ceramic block 222, and the antenna column 320 is vertically arranged on the side surface of the support plate 310 away from the second ceramic block 222.

[0110] The support plate 310 mainly serves as a connecting base of the antenna column 320 and supports the antenna column 320. For example, the support plate 310 can be an un-wired printed circuit board (PCB). The support plate 310 can be fixed on the surface of the second ceramic block 222 by spot welding. In order to ensure the firm fixation of the support plate 310, the support plate 310 can be further bonded to the second ceramic block 222 by glue.

[0111] The V2X antenna 300 can be electrically connected to the electronic device in the vehicle by forming a through hole (not shown in the figure) on the GNSS antenna 200 corresponding to the antenna column 320 of the V2X antenna 300. The feed line (not shown in the figure) of the V2X antenna 300 extends along the through hole of the GNSS antenna 200 to the inner bottom wall 121 of the base 120. The feed line of the V2X antenna 300 extends to the signal line to transmit the signal of the V2X antenna 300 to the electronic device in the vehicle through the signal line.

[0112] It should be noted that the working frequencies of the GNSS antenna 200 and the V2X antenna 300 are different. In the embodiment, the V2X antenna 300 is integrated on the top of the GNSS antenna 200. The V2X antenna 300 is located at a high position in the antenna box 100, which can ensure the signal transmitting and receiving capability of the V2X antenna 300. The coupling between the V2X antenna 300 and the GNSS antenna 200 is low, and the influence on each other is small. The signal sensitive area of the GNSS antenna 200 is the circumferential edge area of the antenna block assembly 220. The V2X antenna 300 is arranged in the top area of the GNSS antenna 200, which has no obvious influence on the signal receiving of the GNSS antenna 200.

[0113] In order to further weaken the influence of the V2X antenna 300 on the GNSS antenna 200, as an embodiment, the support plate 310 of the V2X antenna 300 can only cover the middle area of the top surface of the GNSS antenna 200, that is, the support plate 310 of the V2X antenna 300 only covers the middle area of the top surface of the second ceramic block 222, and exposes the edge area of the second ceramic block 222, so as to ensure the signal receiving capability of the GNSS antenna 200.

[0114] For a vehicle with low positioning accuracy requirement, only one vehicle-mounted integrated antenna 1 can be installed on the roof of the vehicle. According to the working characteristics of the V2X antenna 300, the V2X antenna 300 can include two antenna columns 320, which are arranged at intervals along the length direction of the vehicle body, that is, the two antenna columns 320 are arranged in front of and behind each other in the driving direction of the vehicle.

[0115] For high-precision positioning requirements of the car, for example, the L4 driving mode defined in the advanced driving assistance system (ADAS), that is, the driving operation can rely on the unmanned driving system to realize high automation or even complete automation, at this time, generally need double antenna positioning, the roof of the vehicle can be installed two vehicle integrated antennas 1, two vehicle integrated antennas 1 are arranged along the width direction of the vehicle body. Wherein, the V2X antenna 300 in each vehicle integrated antenna 1 can include an antenna column 320.

[0116] Taking the V2X antenna 300 in the vehicle integrated antenna 1 as an example, combining Figure 5 and Figure 9 It is shown that the V2X antenna 300 can also include two auxiliary electrodes 330, which are vertically arranged on the support plate 310 of the V2X antenna 300, and the two auxiliary electrodes 330 are respectively located on the two sides of the antenna column 320. In actual application, the two auxiliary electrodes 330 are respectively located on the two sides of the antenna column 320 in the corresponding vehicle body width direction. Taking the antenna column 320 located on the center line of the antenna box 100 as an example, the two auxiliary electrodes 330 can be symmetrically arranged on the two sides of the antenna column 320 with the center line of the antenna box 100 as the axis of symmetry.

[0117] For convenience of description, the two sides of the antenna column 320 corresponding to the vehicle body width direction are defined as the left and right sides of the antenna column 320, and the two sides of the antenna column 320 corresponding to the vehicle body length direction are defined as the front and back sides of the antenna column 320. The signal radiation field of the two auxiliary electrodes 330 acts on the left and right sides of the antenna column 320, changes the signal radiation field of the antenna column 320, weakens the signal strength of the V2X antenna 300 in the left and right directions, and enhances the signal strength of the V2X antenna 300 in the front and back directions, that is, enhances the signal strength of the V2X antenna 300 corresponding to the front and back directions of the vehicle body, and improves the performance of the V2X antenna 300.

[0118] Figure 10 The assembly and disassembly view of the 5G antenna assembly and the base provided by the embodiment one of the present disclosure is provided. Combining Figure 5 and Figure 10 It is shown that in the 5G antenna assembly 400, the first antenna 411 in the first group 410 and the second antenna 421 in the second group 420 are both in the shape of rectangular sheet, and the rectangular sheet-shaped first antenna 411 and second antenna 421 can be vertically arranged on the inner bottom wall 121 of the base 120 to ensure the effect of signal emission and reception of the first antenna 411 and the second antenna 421.

[0119] It can be understood that, since the first antenna 411 and the second antenna 421 are both 5G antennas, the interference between the same types of antennas is stronger than that between different types of antennas. In the embodiment, the first antenna 411 and the second antenna 421 are arranged on opposite sides of the GNSS antenna 200 respectively, so as to avoid mutual interference between the first antenna 411 and the second antenna 421.

[0120] However, the 5G antenna assembly 400 and the GNSS antenna 200 belong to different types of antennas, and the interference between them is not obvious. As mentioned above, in the embodiment, the circuit board assembly 210 of the GNSS antenna 200 has an extension plate 212, which surrounds the outer periphery of the antenna block assembly 220 of the GNSS antenna 200. As shown in Figure 5 , the extension plate 212 is arranged between the 5G antenna assembly 400 and the antenna block assembly 220 of the GNSS antenna 200, which can reduce the influence of the 5G antenna assembly 400 on the GNSS antenna 200.

[0121] In addition, as shown in Figure 4 and Figure 5 , by arranging the first group 410 and the second group 420 of the 5G antenna assembly 400 on opposite sides of the GNSS antenna 200 respectively, the other two sides of the GNSS antenna 200 are not provided with other antennas. For the layout design in the antenna box 100, the first group 410 of the 5G antenna assembly 400, the GNSS antenna 200, and the second group 420 of the 5G antenna assembly 400 are arranged in sequence in the length direction of the antenna box 100.

[0122] That is, the direction from the first side to the second side of the GNSS antenna 200 is the length direction of the antenna box 100, and the corresponding direction of the other two sides of the GNSS antenna 200 is the width direction of the antenna box 100. In this way, the layout in the antenna box 100 is more compact, and according to the length direction and the width direction of the antenna box 100, the installation position of the antenna box 100 on the roof of the vehicle can be better determined. For example, the length direction of the antenna box 100 can be arranged along the length direction of the vehicle body. In this way, the antenna box 100 matches the shape of the vehicle body and has smaller wind resistance.

[0123] Among them, the working frequencies of the two first antennas 411 in the first group 410 of the 5G antenna assembly 400 can be the same, so that there needs to be enough spacing between the two first antennas 411 to avoid mutual interference; similarly, the working frequencies of the two second antennas 421 in the second group 420 of the 5G antenna assembly 400 can be the same, so that there needs to be enough spacing between the two second antennas 421 to avoid mutual interference.

[0124] Therefore, in the embodiment, the two first antennas 411 of the first group 410 can be arranged along the extension direction of the first side of the GNSS antenna 200, and correspondingly, the two second antennas 421 of the second group 420 can be arranged along the extension direction of the second side of the GNSS antenna 200, that is, the two first antennas 411 and the two second antennas 421 are arranged along the width direction of the antenna box 100. In this way, the average distance between the two first antennas 411 (the distance between the centers of the two first antennas 411) and the average distance between the two second antennas 421 (the distance between the centers of the two second antennas 421) can meet the design requirements.

[0125] Compared with the two first antennas 411 and the two second antennas 421 arranged along the length direction of the antenna box 100, the two first antennas 411 and the two second antennas 421 need to be designed with sufficient spacing along the length direction of the antenna box 100, which increases the length of the antenna box 100 and is not reasonable in layout.

[0126] Referring to Figure 5 The embodiment makes the two first antennas 411 and the two second antennas 421 arranged along the width direction of the antenna box 100, so that the overall size of the two first antennas 411 and the overall size of the two second antennas 421 are not much different from the size of the GNSS antenna 200 along the width direction of the antenna box 100, and have little effect on the width of the antenna box 100. Since the length of the antenna box 100 is reduced, the layout in the antenna box 100 is compact and reasonable, and the volume of the antenna box 100 can be reduced.

[0127] For example, in the 5G antenna assembly 400, the first antenna 411 can be a high-frequency antenna, for example, the working frequency band of the first antenna 411 is 1.6-5G, and the sensitive area of the first antenna 411 is small, and the length and height of the first antenna 411 are small. The second antenna 421 can be a full-band antenna, for example, the working frequency band of the second antenna 421 is 0.824-5G, and compared with the first antenna 411, the sensitive area of the second antenna 421 is larger, and the length and height of the second antenna 421 are larger than the length and height of the first antenna 411.

[0128] For the antenna box 100 arranged along the length direction of the vehicle body, combined with Figure 4 and Figure 5As shown, in the layout design, the first group 410 of the 5G antenna assembly 400 can be located at one end of the antenna box 100 facing the front of the vehicle, and the second group 420 can be located at one end of the antenna box 100 facing the rear of the vehicle. In this way, according to the case that the overall length and height of the first group 410 are less than the overall length and height of the second group 420, the front end of the antenna box 100 (the end facing the front of the vehicle) can be narrower and lower, and the rear end of the antenna box 100 (the end facing the rear of the vehicle) can be wider and higher. In the direction from the front to the rear, the antenna box 100 assumes a posture of being narrow in front and wide in back, and low in front and high in back, which meets the design requirements of the automobile and is beneficial to reducing wind resistance.

[0129] In addition, as shown in Figure 5 and Figure 10 , in order to reduce the overall size of the first group 410 of the 5G antenna assembly 400 in the width direction of the antenna box 100, on the basis of being symmetrically arranged with the center line (hereinafter referred to as the center line) in the length direction of the antenna box 100, the first antenna 411 can also be arranged inclined relative to the center line of the antenna box 100, the side of the two first antennas 411 closer to each other (the relative inner side) is away from the GNSS antenna 200, and the side of the two first antennas 411 farther away from each other (the relative outer side) is close to the GNSS antenna 200, the first antenna 411 is inclined from the relative inner side to the relative outer side towards the GNSS antenna 200, and a triangular area is formed between the two first antennas 411 and the first side of the GNSS antenna 200.

[0130] In this way, the overall size of the two first antennas 411 in the width direction of the antenna box 100 is further reduced, the width of the front end of the antenna box 100 can be narrower, and the front end of the antenna box 100 can be designed in a gradually widening shape matching the first antenna 411, the streamline of the antenna box 100 is better, the wind resistance of the antenna box 100 is reduced, and the appearance effect of the antenna box 100 is improved.

[0131] As shown in Figure 5 and Figure 10 , similarly to the two first antennas 411 of the first group 410, the two second antennas 421 of the second group 420 of the 5G antenna assembly 400 can also be arranged inclined relative to the center line of the antenna box 100 on the basis of being symmetrically arranged with the center line of the antenna box 100, the side of the two second antennas 421 closer to each other (the relative inner side) is away from the GNSS antenna 200, and the side of the two second antennas 421 farther away from each other (the relative outer side) is close to the GNSS antenna 200, the second antenna 421 is inclined from the relative inner side to the relative outer side towards the GNSS antenna 200, and a triangular area is formed between the two second antennas 421 and the second side of the GNSS antenna 200.

[0132] In this way, the overall size of the two pieces of the second antenna 421 in the width direction of the antenna box 100 is further reduced, the overall size of the two pieces of the second antenna 421 is more matched with the size of the GNSS antenna 200, the second antenna 421 does not excessively occupy the additional width space of the antenna box 100, the rear end of the antenna box 100 can be designed to be tapered to match the second antenna 421, the streamline of the antenna box 100 is better, and the appearance effect of the antenna box 100 is improved.

[0133] Referring to Figure 10 As shown in FIG. 4, in the 5G antenna assembly 400, the first group 410 further includes a first substrate 412 connected to the inner bottom wall 121 of the base 120, and the two pieces of the first antenna 411 are vertically erected on the first substrate 412. The first substrate 412 is, for example, an unwired PCB, and is mainly used for supporting and fixing the first antenna 411. The two pieces of the first antenna 411 are pre-installed on the first substrate 412 to form an integral structure, which facilitates the installation of the first group 410 of the 5G antenna on the inner bottom wall 121 of the base 120. In addition, for the case that the base 120 is a metal base 120, the first substrate 412 can also isolate the influence of the base 120 on the first antenna 411, so as to ensure the performance of the first antenna 411.

[0134] Continuing to refer to Figure 10 Similarly to the first group 410, the second group 420 of the 5G antenna assembly 400 can include a second substrate 422 connected to the inner bottom wall 121 of the base 120, and the two pieces of the second antenna 421 are vertically erected on the second substrate 422. The second substrate 422 can also be an unwired PCB, which will not be described again.

[0135] For example, the area of the inner bottom wall 121 of the base 120 corresponding to the first substrate 412 and the second substrate 422 can be spaced apart to provide a plurality of protruding mounting positions 1211. The first substrate 412 and the second substrate 422 are supported and connected to the mounting positions 1211, which facilitates the positioning and installation of the first substrate 412 and the second substrate 422. The first substrate 412 (the second substrate 422) and the mounting positions 1211 are provided with corresponding connecting holes, and a locking member such as a screw or a rivet is arranged in the connecting hole to fix the first substrate 412 (the second substrate 422) to the base 120.

[0136] In some embodiments, the antennas arranged in the antenna box 100 of the vehicle-mounted integrated antenna 1 can further include at least one of a Bluetooth antenna and a WiFi antenna. The Bluetooth antenna and the WiFi antenna are used for transmitting signals and receiving signals.

[0137] Referring to Figure 5 and Figure 6As shown, as an embodiment, the Bluetooth antenna and the WiFi antenna can be integrated, which is defined as a Bluetooth / WiFi integrated antenna 500 in the embodiment. The Bluetooth / WiFi integrated antenna 500 is a sheet antenna. The Bluetooth / WiFi integrated antenna 500 can be arranged at the side of the GNSS antenna 200 corresponding to the 5G antenna assembly 400. For example, the Bluetooth / WiFi integrated antenna 500 is arranged at the side of the first group 410 or the side of the second group 420. In addition, the Bluetooth / WiFi integrated antenna 500 can be attached to the triangular area on the first substrate 412 or the second substrate 422 (the area formed between the two first antennas 411 / the two second antennas 421 and the first side / second side of the GNSS antenna 200).

[0138] In other embodiments, the Bluetooth antenna and the WiFi antenna can also be arranged separately. One of the Bluetooth antenna and the WiFi antenna can be arranged in the antenna box 100 and attached to the triangular area on the first substrate 412 or the second substrate 422. Alternatively, the Bluetooth antenna and the WiFi antenna can be arranged in the antenna box 100. One of the Bluetooth antenna and the WiFi antenna is attached to the triangular area on the first substrate 412, and the other is attached to the triangular area on the second substrate 422.

[0139] Referring to Figure 5 and Figure 6 As shown, the base 120 can also be provided with a breathing valve 127. The breathing valve 127 communicates with the outside through the base 120. The part of the buffer pad 600 attached to the outer bottom wall of the base 120 corresponding to the breathing valve 127 can be provided with a relief hole 620. The breathing valve 127 is exposed in the relief hole 620. When there is a pressure difference between the inside and outside of the antenna box 100, the breathing valve 127 is opened to communicate the inside of the antenna box 100 with the outside, so as to keep the pressure balance between the inside and outside of the antenna box 100 and prevent the pressure difference from damaging the antenna box 100 and affecting the performance of the vehicle-mounted integrated antenna 1.

[0140] For example, the antenna box 100 is provided with the Bluetooth / WiFi integrated antenna 500 arranged in the triangular area on the second substrate 422 (the first substrate 412). The breathing valve 127 can be arranged opposite to the Bluetooth / WiFi integrated antenna 500 and located in the area of the base 120 corresponding to the triangular area of the first substrate 412 (the second substrate 422). At this time, the part of the first substrate 412 (the second substrate 422) corresponding to the breathing valve 127 can be provided with a relief gap 4121. The breathing valve 127 is exposed in the relief gap 4121 to communicate the inside of the antenna box 100.

[0141] Figure 11 For Figure 1 A-A sectional view. Referring to Figure 4And Figure 11 As shown in the figure, the embodiment is to integrate the GNSS antenna 200, the V2X antenna 300, the 5G antenna assembly 400 and the Bluetooth / WiFi integrated antenna 500 in the antenna box 100, so that the vehicle-mounted integrated antenna 1 can meet the communication needs in multiple aspects.

[0142] By setting the GNSS antenna 200 in the middle region of the length direction of the antenna box 100 and integrating the V2X antenna 300 on the top of the GNSS antenna 200, the ability of the V2X antenna 300 to transmit and receive signals can be guaranteed, and no obvious influence on the GNSS antenna 200 is generated. By setting the first group 410 and the second group 420 of the 5G antenna assembly 400 on the two sides corresponding to the GNSS antenna 200 respectively, the GNSS antenna 200 is isolated between the first group 410 and the second group 420, so that the mutual influence between the first group 410 and the second group 420 can be avoided; wherein the two pieces of first antenna 411 of the first group 410 are arranged at intervals, and the two pieces of second antenna 421 of the second group 420 are arranged at intervals, so that the interference between the two pieces of first antenna 411 and the two pieces of second antenna 421 can be avoided.

[0143] Referring to Figure 11 As shown in the figure, in actual application, the height of the antenna box 100 can not exceed 70mm, so as not to affect the driving performance of the automobile by the vehicle-mounted integrated antenna 1. On the basis of guaranteeing that no obvious interference is generated between various antennas, the layout in the antenna box 100 is compact and reasonable, the V2X antenna 300 arranged on the top of the GNSS antenna 200 does not occupy additional planar space of the antenna box 100, and the 5G antenna assembly 400 located on the two sides of the GNSS antenna 200 does not occupy additional width space of the antenna box 100. The volume of the antenna box 100 is small, the shape matches the shape of the roof, and the appearance effect is good.

[0144] Since the vehicle-mounted integrated antenna 1 is installed on the roof of the vehicle and exposed to the external environment, and various antennas are integrated in the antenna box 100, the sealing performance of the antenna box 100 has a higher requirement, so as to ensure the ability of various antennas in the antenna box 100 to transmit and receive signals and ensure the reliability of the vehicle-mounted integrated antenna 1. For this purpose, the connection sealing structure of the antenna box 100 is designed, and the specific structure of the antenna box 100 is introduced in detail below.

[0145] Figure 12 An exploded view of the antenna box after removing various antennas provided by Embodiment One of the present disclosure; Figure 13 A structural schematic view of the shell of the antenna box provided by Embodiment One of the present disclosure; Figure 14 A structural schematic view of the base of the antenna box provided by Embodiment One of the present disclosure; Figure 15 A partial enlarged view of position A in FIG. 8. Figure 11 A partial enlarged view of position A in FIG. 8.

[0146] Referring to Figure 12 As shown in the figure, the shell 110 of the antenna box 100 can be a one-piece molding, which includes a top wall part 111 and a side wall part 112 surrounding the circumferential edge of the top wall part 111. Compared with the shell 110, the base 120 of the antenna box 100 is generally a plate structure, and the side wall part 112 of the shell 110 is connected with the edge of the base 120 to form the antenna box 100.

[0147] In combination Figure 13 And Figure 14 As shown in the figure, the side wall part 112 of the shell 110 includes an outer layer wall 1121, which is the outermost structure of the side wall part 112. When the shell 110 and the base 120 are assembled, the outer layer wall 1121 of the shell 110 is used to cooperate with the side wall 122 of the base 120. Referring to Figure 15 As shown in the figure, the outer layer wall 1121 of the shell 110 can be attached to the outer wall surface of the side wall 122 of the base 120. In this way, the outer layer wall 1121 of the shell 110 can shield the outer wall surface of the side wall 122 of the base 120, and the base 120 is surrounded by the shell 110, thereby improving the appearance effect of the antenna box 100.

[0148] As for the connection between the shell 110 and the base 120, referring to Figure 13 As shown in the figure, a plurality of mounting columns 113 can be arranged on the inner side of the outer layer wall 1121 of the shell 110 along the circumference, and the mounting columns 113 have internal threaded holes. Referring to Figure 14 As shown in the figure, a plurality of positioning holes 1221 are arranged on the side wall 122 of the base 120 along the circumference, and the positioning holes 1221 correspond to the mounting columns 113 one by one. By threading screws into the positioning holes 1221 and the internal threaded holes of the mounting columns 113, the shell 110 and the base 120 are mechanically locked together.

[0149] In addition, in order to realize the sealed connection between the shell 110 and the base 120, referring to Figure 13 As shown in the figure, the side wall part 112 of the shell 110 further includes an inner layer wall 1122, which is located on the inner side of the outer layer wall 1121. Referring to Figure 14 As shown in the figure, the inner bottom wall 121 of the base 120 further has a first annular groove A near the edge. Referring to Figure 15 As shown in the figure, the inner layer wall 1122 of the shell 110 extends into the first annular groove A of the base 120, and a sealant is filled in the gap between the first annular groove A and the inner layer wall 1122. The gap between the shell 110 and the base 120 is sealed by the sealant, and the sealed connection between the shell 110 and the base 120 is realized.

[0150] In addition to the sealed connection between the outer shell 110 and the base 120 by sealant, a sealing ring 126 is also pressed between the outer shell 110 and the base 120. The sealing ring 126 is, for example, an "O" ring. After the outer shell 110 and the base 120 are assembled, the sealing ring 126 is squeezed and deformed to seal the gap between the outer shell 110 and the base 120.

[0151] Specifically, refer to Figure 13 As shown, the side wall portion 112 of the outer casing 110 also includes a middle wall 1123 located between the outer wall 1121 and the inner wall 1122, as shown in Figure 1123. Figure 14 As shown, a second annular groove B is also provided on the inner bottom wall 121 of the base 120. The sealing ring 126 is disposed in the second annular groove B. The middle wall 1123 of the outer shell 110 extends into the second annular groove B and abuts against the sealing ring 126. The pressure of the middle wall 1123 and the base 120 on the sealing ring 126 squeezes and deforms it, sealing the gap between the outer shell 110 and the base 120.

[0152] Among them, reference Figure 14 As shown, a first annular wall 124 and a second annular wall 125 are provided near the edge of the inner bottom wall 121 of the base 120. The second annular wall 125 surrounds the outside of the first annular wall 124. The first annular wall 124, the second annular wall 125, and the inner bottom wall 121 of the base 120 together form a first annular groove A. The second annular wall 125, the side wall 122 of the base 120, and the inner bottom wall 121 of the base 120 together form a second annular groove B. The area on the inner bottom wall 121 of the base 120 within the area surrounded by the first annular wall 124 is the area for installing the GNSS antenna 200 and the 5G antenna assembly 400.

[0153] The outer shell 110 and the base 120 of the antenna box 100 are double-sealed by sealant and sealing ring 126, which can effectively improve the waterproof sealing performance of the antenna box 100 and enable the vehicle integrated antenna 1 to achieve an IP67 waterproof rating. Here, the number "6" represents the dustproof rating of the vehicle integrated antenna 1, indicating that the vehicle integrated antenna 1 can completely protect the internal structure from dust intrusion, and the number "7" represents the waterproof rating of the vehicle integrated antenna 1, indicating that the vehicle integrated antenna 1 can provide the internal components with a protection time of not less than 30 minutes when immersed in water at a depth of more than 1m.

[0154] Since a sealing ring 126 is also provided on the base 120, the sealing ring 126 is deformed by the pressure between the outer shell 110 and the base 120. Therefore, the base 120 needs to withstand a large pressure. In order to give the base 120 sufficient pressure-bearing capacity, the base 120 can be made of metal. Alternatively, reinforcing ribs 114 can be provided on the inner wall of the plastic outer shell 110. This reduces the wall thickness of the outer shell 110 and lightens the weight of the antenna box 100, while increasing the strength of the outer shell 110. This ensures that the antenna box 100 is not damaged or deformed in different high and low temperature environments, and effectively guarantees the reliability of the antenna box 100.

[0155] For example, refer to Figure 13 As shown, multiple reinforcing ribs 114 can be provided at intervals between the inner wall 1122 and the middle wall 1123 of the side wall portion 112 of the outer shell 110, and between the middle wall 1123 and the outer wall 1121. In addition, multiple reinforcing ribs 114 can also be provided on the inner wall surface of the top wall portion 111 of the outer shell 110. The reinforcing ribs 114 on the inner wall surface of the top wall portion 111 can include annular reinforcing ribs 114 extending in the circumferential direction, reinforcing ribs 114 extending approximately in the length direction of the outer shell 110, and reinforcing ribs 114 extending approximately in the width direction of the outer shell 110. Different reinforcing ribs 114 can be cross-connected.

[0156] Example 2

[0157] This embodiment provides a vehicle, which includes a vehicle body and an on-board integrated antenna 1 as described in Embodiment 1 is mounted on the roof of the vehicle body.

[0158] Vehicles may include sedans, SUVs (Sport Utility Vehicles), off-road vehicles, freight trucks, trucks, buses, etc., and this embodiment does not impose specific limitations on them. The following description uses sedans, SUVs, or off-road vehicles as examples.

[0159] For automobiles with low positioning accuracy requirements, only one vehicle-mounted integrated antenna 1 can be installed on the roof of the vehicle. For example, the center of the vehicle-mounted integrated antenna 1 can be located on the center line of the length direction of the roof.

[0160] For vehicles with high positioning accuracy requirements, such as the vehicle in this embodiment which is an autonomous driving vehicle with a driving mode of L4 or above, two or more vehicle-mounted integrated antennas 1 can be installed on the roof of the vehicle. Typically, two vehicle-mounted integrated antennas 1 are installed on the roof, and the two vehicle-mounted integrated antennas 1 can be spaced apart along the width direction of the vehicle body.

[0161] In some embodiments, more vehicle-mounted integrated antennas 1 can be installed on the vehicle roof. For example, three vehicle-mounted integrated antennas 1 can be spaced apart along the width of the roof, and all three vehicle-mounted integrated antennas 1 are electrically connected to the electronic devices inside the vehicle. Based on the joint positioning of two vehicle-mounted integrated antennas 1, one vehicle-mounted integrated antenna 1 is redundant. If one vehicle-mounted integrated antenna 1 fails to work properly, the other two vehicle-mounted integrated antennas 1 can still be used to achieve dual-antenna joint positioning, ensuring that the positioning requirements of autonomous vehicles are met.

[0162] Taking two vehicle-mounted integrated antennas 1 spaced apart along the width of the vehicle body on the roof as an example, the vehicle's current location can be determined by either one of the vehicle-mounted integrated antennas 1. However, by arranging two vehicle-mounted integrated antennas 1 spaced apart along the width of the vehicle body, the vehicle's current orientation can be determined by the joint positioning of the two vehicle-mounted integrated antennas 1. Based on this, parameters such as the vehicle's deflection angle and deflection speed can be determined to achieve accurate positioning of the vehicle.

[0163] In practical applications, taking the static (when the vehicle-mounted integrated antenna 1 is stationary) positioning accuracy within 10cm and the dynamic (when the vehicle-mounted integrated antenna 1 is moving) positioning accuracy within 30cm as an example, the distance between two vehicle-mounted integrated antennas 1 can be ≥60cm. For example, the distance between two vehicle-mounted integrated antennas 1 can be 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm or 100cm, etc., which can be determined according to the width of the vehicle roof. This embodiment does not impose specific restrictions on this.

[0164] Furthermore, the two vehicle-mounted integrated antennas 1 on the roof can be symmetrically positioned about the center line of the roof's length. This ensures that the two antennas 1 are equidistant from the roof's center line, resulting in higher accuracy for joint positioning.

[0165] 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 integrated antenna, installed on the roof of a vehicle, characterized in that, include: Antenna box and GNSS antenna, V2X antenna and 5G antenna assembly disposed within the antenna box; The GNSS antenna is mounted on the inner bottom wall of the antenna box, and the V2X antenna is disposed on the top surface of the GNSS antenna opposite to the inner bottom wall. The 5G antenna assembly is erected on the inner bottom wall and includes a first group and a second group. The first group is located on the first side of the GNSS antenna, and the second group is located on the second side of the GNSS antenna opposite to the first side. The first group includes two spaced-apart first antennas, and the second group includes two spaced-apart second antennas. The V2X antenna includes a support plate and an antenna post. The support plate is an unwired printed circuit board. The support plate is attached to the top surface of the GNSS antenna, and the antenna post is erected on the side of the support plate opposite to the GNSS antenna. The support plate covers the middle area of ​​the top surface of the GNSS antenna; The V2X antenna also includes two auxiliary electrodes erected on the support plate. The two auxiliary electrodes are located on both sides of the antenna column in the width direction corresponding to the vehicle. The two auxiliary electrodes are symmetrically arranged on both sides of the antenna column with the center line of the antenna box as the axis of symmetry.

2. The vehicle-mounted integrated antenna according to claim 1, characterized in that, Both the first antenna and the second antenna are rectangular sheets, and the two first antenna sheets are spaced apart along the extension direction of the first side, and the two second antenna sheets are spaced apart along the extension direction of the second side.

3. The vehicle-mounted integrated antenna according to claim 2, characterized in that, The length of the first antenna is less than the length of the second antenna, and the height of the first antenna is less than the height of the second antenna.

4. The vehicle-mounted integrated antenna according to claim 2, characterized in that, The first group is located at the end of the antenna box facing the front of the vehicle, and the second group is located at the end of the antenna box facing the rear of the vehicle.

5. The vehicle-mounted integrated antenna according to claim 2, characterized in that, The two first antennas are symmetrically and obliquely arranged with respect to the center line of the antenna box. The side of the two first antennas that are closer to each other is away from the GNSS antenna, and the side of the two first antennas that are farther away from each other is closer to the GNSS antenna.

6. The vehicle-mounted integrated antenna according to claim 2, characterized in that, The two second antennas are symmetrically and obliquely arranged with respect to the center line of the antenna box. The side of the two second antennas that are closer to each other is away from the GNSS antenna, and the side of the two second antennas that are farther away from each other is closer to the GNSS antenna.

7. The vehicle-mounted integrated antenna according to claim 2, characterized in that, The first group also includes a first substrate, which is connected to the inner bottom wall, and two first antennas are vertically mounted on the first substrate; The second group also includes a second substrate, which is connected to the inner bottom wall, and two second antennas are vertically mounted on the second substrate.

8. The vehicle-mounted integrated antenna according to any one of claims 1-7, characterized in that, The GNSS antenna includes a circuit board assembly, an antenna block assembly, and a shield. The circuit board assembly is supported on the inner bottom wall, the antenna block assembly is connected to the side surface of the circuit board assembly facing away from the inner bottom wall, and the shield is connected to the side surface of the circuit board assembly facing the inner bottom wall.

9. The vehicle-mounted integrated antenna according to claim 8, characterized in that, The circuit board assembly includes a motherboard and at least one extension board. The antenna block 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.

10. The vehicle-mounted integrated antenna according to claim 9, characterized in that, The motherboard is rectangular in shape, and four extension plates are respectively provided on the four sides of the motherboard.

11. The vehicle-mounted integrated antenna according to claim 9, characterized in that, The antenna block assembly includes at least a first ceramic block and a second ceramic block, the first ceramic block being attached to the motherboard, and the second ceramic block being stacked on the side of the first ceramic block facing away from the motherboard.

12. The vehicle-mounted integrated antenna according to any one of claims 1-7, characterized in that, It also includes at least one of a Bluetooth antenna and a WiFi antenna, wherein the Bluetooth antenna and / or the WiFi antenna are disposed on the side of the GNSS antenna corresponding to the 5G antenna assembly.

13. The vehicle-mounted integrated antenna according to claim 12, characterized in that, The Bluetooth antenna and the WiFi antenna are integrated into one unit and are located on the side of the first antenna or the second antenna facing the GNSS antenna.

14. The vehicle-mounted integrated antenna according to any one of claims 1-7, characterized in that, The antenna box includes an interlocking outer shell and a base, the base being fixed to the vehicle roof, the outer shell being located on the side of the base opposite to the vehicle roof, and the GNSS antenna and the 5G antenna assembly being mounted on the inner bottom wall of the base.

15. The vehicle-mounted integrated antenna according to claim 14, characterized in that, The base has an annular support wall on its inner bottom wall, and the GNSS antenna is supported on the top of the annular support wall.

16. The vehicle-mounted integrated antenna according to claim 14, characterized in that, The outer casing includes a top wall portion and a side wall portion surrounding the circumferential edge of the top wall portion, the side wall portion being fastened to the edge of the base.

17. The vehicle-mounted integrated antenna according to claim 16, characterized in that, The sidewall portion includes an outer wall and an inner wall located inside the outer wall, and a first annular groove is provided on the inner bottom wall of the base near the edge. The outer wall is attached to the outer wall surface of the side wall of the base, the inner wall extends into the first annular groove, and the gap between the first annular groove and the inner wall is filled with sealant.

18. The vehicle-mounted integrated antenna according to claim 17, characterized in that, The side wall portion also includes a middle wall located between the outer wall and the inner wall, and the inner bottom wall of the base is provided with a second annular groove, in which a sealing ring is provided, and the middle wall abuts against the sealing ring.

19. The vehicle-mounted integrated antenna according to claim 18, characterized in that, The base has a first annular wall and a second annular wall near the edge on its inner bottom wall, with the second annular wall surrounding the outside of the first annular wall. The first annular wall, the second annular wall, and the inner bottom wall of the base together form a first annular groove, and the second annular wall, the side wall of the base, and the inner bottom wall of the base together form a second annular groove.

20. The vehicle-mounted integrated antenna according to claim 14, characterized in that, The base is equipped with a breathing valve, which connects the inside of the antenna box to the outside.

21. The vehicle-mounted integrated antenna according to claim 20, characterized in that, The breathing valve is located on the side of the first antenna facing the GNSS antenna, or the breathing valve is located on the side of the second antenna facing the GNSS antenna.

22. The vehicle-mounted integrated antenna according to claim 14, characterized in that, A connector is installed on the outer bottom wall of the base, and the connector is connected to the roof of the vehicle.

23. The vehicle-mounted integrated antenna according to claim 14, characterized in that, It also includes a cushioning pad, which is attached to the outer bottom wall of the base.

24. An autonomous vehicle, characterized in that, Includes a vehicle body and at least two vehicle-mounted integrated antennas as described in any one of claims 1-23; The vehicle body includes a roof, and the vehicle-mounted integrated antenna is mounted on the roof.

25. The autonomous vehicle according to claim 24, characterized in that, Two vehicle-mounted integrated antennas are installed on the roof, with the two vehicle-mounted integrated antennas respectively located on both sides of the roof in the width direction.

26. The autonomous vehicle according to claim 24, characterized in that, The two vehicle-mounted integrated antennas are symmetrically arranged with the center line of the vehicle roof as the axis of symmetry.

27. The autonomous vehicle according to claim 24, characterized in that, The distance between the two vehicle-mounted integrated antennas is greater than or equal to 60cm.

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