Vehicle-mounted communication terminal and vehicle

Abstract

The utility model provides a vehicle-mounted communication terminal and a vehicle, which are applied to the field of communication. The vehicle-mounted communication terminal comprises a circuit board; a plurality of antenna groups arranged on the first surface of the circuit board; the plurality of communication modules are arranged on the second surface of the circuit board; the antenna groups and the communication modules are connected in a one-to-one correspondence manner. According to the utility model, a plurality of antenna groups and a plurality of corresponding communication modules required by vehicle communication can be integrated in one terminal, compared with dispersed arrangement, a large number of wire harnesses and extra V2X compensators are not needed, the weight and cost of the whole vehicle can be reduced, and the situation that the antenna performance is reduced due to long wire harnesses and large line loss can be avoided. Besides, the antenna group and the communication module are arranged on different surfaces of the circuit board, so that the antenna group and the communication module do not influence each other, and the antenna group is generally arranged towards the outside of the vehicle, and the communication module is positioned on the other surface, so that the external high-temperature influence can be reduced, and the communication module is prevented from being overheated to influence the performance.

Description

Technical Field

[0001] The utility model relates to the technical field of communication, and in particular to a vehicle-mounted communication terminal and a vehicle. Background Art

[0002] With the development of intelligent automobiles, the number of signals that automobiles need to receive is increasing, the types of antennas are increasing accordingly, and the number of vehicle-mounted antennas is also increasing accordingly.

[0003] At present, antennas with different functions are arranged in scattered locations. The wiring harness required for antenna arrangement is long, and the wiring harness exceeds 3.5 meters. It is necessary to add an additional V2X (vehicle to X, vehicle wireless communication technology) compensator, which increases the cost and vehicle weight. In addition, the long wiring harness also leads to greater wire loss in the wiring harness, affecting the antenna performance. Utility Model Content

[0004] The embodiments of the utility model provide a vehicle-mounted communication terminal and a vehicle to solve the problem that the existing antenna arrangement requires a long wire harness, increases the cost and the weight of the whole vehicle, and affects the antenna performance.

[0005] In a first aspect, an embodiment of the utility model provides a vehicle-mounted communication terminal, comprising:

[0006] Circuit boards;

[0007] A plurality of antenna groups are disposed on a first side of the circuit board; and

[0008] A plurality of communication modules are arranged on the second surface of the circuit board;

[0009] The antenna groups and the communication modules are connected one by one.

[0010] In a possible implementation, the multiple antenna groups include a 5G and V2X antenna group, a WIFI and Bluetooth antenna group, and a satellite antenna group;

[0011] Multiple communication modules including 5G and V2X modules, WIFI and Bluetooth modules, and satellite communication modules;

[0012] The 5G and V2X antenna groups are connected to the 5G and V2X modules, the WIFI and Bluetooth antenna groups are connected to the WIFI and Bluetooth modules, the satellite antenna group is connected to the satellite communication module, and the 5G and V2X modules are also connected to the WIFI and Bluetooth modules and the satellite communication module respectively.

[0013] In a possible implementation, the vehicle-mounted communication terminal further includes: a digital key module;

[0014] The digital key module includes a UWB antenna and a BLE antenna arranged on a first surface of a circuit board.

[0015] In one possible implementation, the 5G and V2X antenna group includes a 5G main antenna, a 5G diversity antenna, a first 5G MIMO antenna, a second 5G MIMO antenna, and a first V2X antenna;

[0016] The WIFI and Bluetooth antenna group includes a WIFI and Bluetooth integrated antenna and a first WIFI antenna;

[0017] A WIFI and Bluetooth integrated antenna, a first WIFI antenna, a 5G main antenna and a first 5G MIMO antenna are sequentially arranged along the first long side of the first surface;

[0018] A first V2X antenna, a second 5G MIMO antenna, a 5G diversity antenna, a UWB antenna and a BLE antenna are arranged in sequence along the second long side of the first surface.

[0019] In a possible implementation, the vehicle-mounted communication terminal further includes: a positioning antenna disposed on the first surface of the circuit board; the satellite antenna group includes a satellite communication antenna;

[0020] A satellite communication antenna and a positioning antenna are arranged at intervals along the first wide side of the first surface.

[0021] In a possible implementation, the vehicle-mounted communication terminal further includes: a V2X interface for connecting a second V2X antenna; the V2X interface is arranged on a side of the circuit board;

[0022] The 5G and V2X modules are connected to the second V2X antenna via the V2X interface.

[0023] In a possible implementation, the vehicle-mounted communication terminal further includes: a metal heat dissipation structure;

[0024] The metal heat dissipation structure is connected to at least two of the multiple communication modules through the heat dissipation silicone sheet.

[0025] In a possible implementation, the vehicle-mounted communication terminal further includes: a lower housing disposed opposite to the second surface of the circuit board;

[0026] The metal heat dissipation structure is embedded in the lower shell.

[0027] In a possible implementation, the vehicle-mounted communication terminal further includes: a communication interface for communicating with an external device;

[0028] The communication interface is arranged on the side of the circuit board.

[0029] In a second aspect, an embodiment of the utility model provides a vehicle, comprising a vehicle-mounted communication terminal as in the first aspect or any possible implementation manner of the first aspect.

[0030] An embodiment of the utility model provides a vehicle-mounted communication terminal and a vehicle. By arranging multiple antenna groups on the first side of the circuit board of the vehicle-mounted communication terminal and arranging multiple corresponding communication modules on the second side of the circuit board of the vehicle-mounted communication terminal, multiple antenna groups and corresponding multiple communication modules required for vehicle communication can be concentrated in one terminal. Compared with a dispersed arrangement, a large number of wiring harnesses and additional V2X compensators are not required, which can reduce the weight and cost of the entire vehicle, and at the same time, it can avoid the situation where the antenna performance is reduced due to the long wiring harness and large line loss. In addition, the antenna group and the communication module are arranged on different sides of the circuit board, so that the antenna group and the communication module do not affect each other, and usually the antenna group is arranged to face the outside of the vehicle, and the communication module is located on the other side, which can reduce the influence of external high temperature and avoid overheating of the communication module and affecting the performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 It is a structural schematic diagram of a vehicle-mounted communication terminal provided by an embodiment of the utility model;

[0033] Figure 2 It is a structural schematic diagram of a vehicle-mounted communication terminal provided by another embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of the connection relationship of the vehicle-mounted communication terminal provided by an embodiment of the utility model;

[0035] Figure 4 It is a schematic diagram of a metal heat dissipation structure provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0036] The present application is described more clearly below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the effects of the present application, but are not intended to limit the present application in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present application. These all fall within the scope of protection of the present application.

[0037] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0038] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] In the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0040] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0041] In addition, the “plurality” mentioned in the embodiments of the present application should be interpreted as two or more.

[0042] The following is a detailed description of the implementation of the present invention in conjunction with the specific drawings:

[0043] With the development of smart vehicles, vehicles need to receive more and more signals, and the types and numbers of antennas are also increasing. At present, the layout positions of various vehicle-mounted antennas are scattered. For example, for vehicles equipped with 5G (5th Generation Mobile Communication Technology) and V2X communication, a V2X antenna is installed at the base of the rearview mirror in the car, another V2X antenna and two 5G antennas are installed in the shark fin antenna, and another two 5G antennas are installed on the instrument panel, and the vehicle-mounted T-Box (Telematics Box) is installed in the trunk. In order to achieve communication, each antenna needs to be connected to the T-Box. Due to the scattered layout positions of the antennas, antennas are arranged at the front and rear ends of the vehicle. In order to communicate with the T-Box, a large number of wire harnesses are required, and the wire harnesses are relatively long. If the wire harness exceeds 3.5 meters, an additional V2X compensator needs to be added, resulting in increased cost and vehicle weight. In addition, the longer wire harness also leads to larger wire loss in the wire harness, affecting antenna performance.

[0044] In addition, satellite communications, as a new demand for in-vehicle communications, have begun to be installed in vehicles. At present, satellite communication services are based on communications with high-orbit satellites. High-orbit satellites are far away from the earth, and the signals will be greatly attenuated during transmission. Therefore, satellite communication antennas need to have high gain and high directivity in order to effectively receive and transmit signals. High gain means that the antenna can capture more signal energy, while high directivity ensures that the antenna can accurately point the signal to or receive satellites from a specific direction. The size and layout of satellite communication antennas are restricted by many factors, which is not conducive to the layout of the entire vehicle.

[0045] In order to solve the above problems, an embodiment of the present application provides a vehicle-mounted communication terminal. Figure 1 A schematic diagram of the structure of a vehicle-mounted communication terminal provided in one embodiment of the utility model; Figure 2 It is a structural schematic diagram of a vehicle-mounted communication terminal provided by another embodiment of the utility model; Figure 3 Schematic diagram of the connection relationship of the vehicle-mounted communication terminal provided by an embodiment of the utility model. Figures 1 to 3 , the vehicle-mounted communication terminal may include:

[0046] Circuit board 10;

[0047] A plurality of antenna groups are disposed on the first surface of the circuit board 10; and,

[0048] A plurality of communication modules are arranged on the second surface of the circuit board 10;

[0049] The antenna groups and the communication modules are connected one by one.

[0050] In this embodiment, a plurality of antenna groups with different functions are arranged on the first surface of the circuit board 10, and a plurality of communication modules with different functions are arranged correspondingly on the second surface of the circuit board 10. The antenna groups and the communication modules correspond one to one. The first surface and the second surface of the circuit board 10 are opposite to each other, that is, they are arranged opposite to each other.

[0051] Multiple antenna groups and multiple communication modules can be electrically connected to the circuit board 10. The circuit board 10 can be a PCB (Printed Circuit Board). The antenna groups and communication modules can be connected through PCB wiring.

[0052] See also Figures 1 to 3 , Figure 1 The circuit board 10 shown is the first side of the circuit board 10. Figure 2 The circuit board 10 shown is the second side of the circuit board 10 . Figure 1 The reference numerals 20, 30 and 60 in FIG. 8 are different antenna groups. Figure 2 The reference numerals 31, 32 and 33 in the figure are different communication modules. Figure 3The connection relationship between the antenna group and the antenna module is shown.

[0053] The vehicle-mounted communication terminal of the embodiment of the present application can be used as a new T-Box, which integrates antenna groups and communication modules with different functions, and concentrates the dispersed antennas in the same terminal.

[0054] When installing the vehicle communication terminal, the first side where the antenna group is located faces the outside of the vehicle, and the second side where the communication module is located faces the inside of the vehicle. The vehicle communication terminal can be installed on the roof or other suitable locations, without specific restrictions.

[0055] The embodiment of the present application arranges multiple antenna groups on the first side of the circuit board 10 of the vehicle-mounted communication terminal, and arranges multiple corresponding communication modules on the second side of the circuit board 10 of the vehicle-mounted communication terminal, so that multiple antenna groups and corresponding multiple communication modules required for vehicle communication can be concentrated in one terminal. Compared with the dispersed arrangement, there is no need for a large number of wiring harnesses and additional V2X compensators, which can reduce the weight and cost of the whole vehicle, and at the same time can avoid the situation where the antenna performance is reduced due to long wiring harnesses and large line losses; in addition, the antenna group and the communication module are arranged on different sides of the circuit board, so that the antenna group and the communication module do not affect each other, and in order to ensure the normal reception and transmission performance of the antenna, the antenna group is usually arranged to face the outside of the vehicle, and the communication module is located on the other side, facing the inside of the vehicle, which can reduce the impact of external high temperature, and at the same time, the temperature of the communication module can be reduced by the air conditioner in the vehicle to avoid overheating of the communication module and affecting performance.

[0056] It is introduced above that the vehicle-mounted communication terminal includes multiple antenna groups and multiple communication modules. The specific components of the multiple antenna groups and multiple communication modules, as well as the connection relationship between them, will be further introduced below.

[0057] See also Figures 1 to 3 The above-mentioned multiple antenna groups may include a 5G and V2X antenna group 20, a WIFI and Bluetooth (BlueTooth, BT) antenna group 30 and a satellite antenna group 60;

[0058] The above-mentioned multiple communication modules may include a 5G and V2X module 32, a WIFI and Bluetooth module 31, and a satellite communication module 33;

[0059] The 5G and V2X antenna group 20 is connected to the 5G and V2X module 32, the WIFI and Bluetooth antenna group 30 is connected to the WIFI and Bluetooth module 31, the satellite antenna group 60 is connected to the satellite communication module 33, and the 5G and V2X module 32 is also connected to the WIFI and Bluetooth module 31 and the satellite communication module 33 respectively.

[0060] In this embodiment, the 5G and V2X antenna group 20, the WIFI and Bluetooth antenna group 30, the satellite antenna group 60, the 5G and V2X module 32, the WIFI and Bluetooth module 31 and the satellite communication module 33 can all be electrically connected to the circuit board 10.

[0061] The 5G and V2X antenna group 20 and the 5G and V2X module 32, the WIFI and Bluetooth antenna group 30 and the WIFI and Bluetooth module 31, the satellite antenna group 60 and the satellite communication module 33, the 5G and V2X module 32 and the WIFI and Bluetooth module 31, and the 5G and V2X module 32 and the satellite communication module 33 can all be connected through PCB routing.

[0062] Satellite communication module 33 realizes long-distance and wide-coverage communication services through artificial earth satellites. It is suitable for special areas that are difficult to cover by ground communication networks, empowers automobile satellite communication capabilities, provides full-area and all-weather protection for vehicle information communication, and supports voice / SMS communication, location monitoring, automatic alarm for vehicle failure / accident, emergency call, vehicle data reporting, etc. Figure 3 The satellite communication module 33 is also connected to the satellite communication eSIM card.

[0063] The satellite antenna group 60 can be responsible for communicating with satellites in space. The satellite antenna group 60 receives signals from satellites and converts them into electrical signals for processing by the satellite communication module 33; at the same time, the satellite antenna group 60 also converts the electrical signals generated by the satellite communication module 33 into wireless signals and sends them to the satellite. The performance of the satellite antenna group 60 directly affects the stability of satellite communication and the data transmission rate.

[0064] The WIFI and Bluetooth module 31 can realize wireless interconnection between devices through Bluetooth and / or WIFI, and can realize data transmission between devices in a simple manner, and the communication is stable and reliable.

[0065] The WIFI and Bluetooth antenna group 30 is a bridge for the WIFI and Bluetooth module 31 to communicate with the external wireless communication, and is responsible for receiving and sending wireless signals.

[0066] The 5G and V2X module 32 can support 5G NR independent networking (SA) and non-independent networking (NSA) modes, and can support up to 2.4Gbps downlink rate and 550Mbps uplink rate in 5G NSA mode. At the same time, the V2X direct communication function is realized through its C-V2X PC5 interface. 5G communication technology and vehicle-to-object (V2X) technology enable vehicles to interact with the surrounding environment efficiently and in real time. By promoting communication between vehicles (V2V), traffic infrastructure (V2I) and pedestrians (V2P), road safety can be significantly improved and traffic congestion can be reduced.

[0067] The 5G and V2X antenna group 20 is a key component of the 5G and V2X module 32 to achieve wireless communication between the vehicle and the external environment. The 5G and V2X antenna group 20 is responsible for sending and receiving 5G signals and sending and receiving V2X signals, ensuring that the vehicle can exchange data with other vehicles, infrastructure and pedestrians in real time and efficiently.

[0068] The vehicle-mounted communication terminal provided in the embodiment of the present application integrates satellite communication, 5G, V2X and WIFI into one, and can realize Tiantong satellite calls, Tiantong satellite text messages, 5G cellular communications, V2X communications and WIFI hotspot sharing functions, etc.

[0069] Exemplarily, the hotspot sharing function can be realized through the WIFI and Bluetooth module 31 and the 5G and V2X module 32; the mobile phone can realize satellite calls through the link WIFI and Bluetooth module 31---5G and V2X module 32---satellite communication module 33; and so on.

[0070] In the embodiment of the present application, the 5G and V2X modules 32, the WIFI and Bluetooth modules 31 and the satellite communication module 33 are arranged on the second side of the circuit board 10, facing the interior of the vehicle, which can reduce the impact of high temperature when the vehicle-mounted communication terminal is installed on the roof.

[0071] The embodiment of the present application integrates vehicle-mounted 5G, V2X, satellite, WIFI and Bluetooth communications in the vehicle-mounted T-Box through the 5G and V2X antenna group 20 and the corresponding 5G and V2X modules 32, the WIFI and Bluetooth antenna group 30 and the corresponding WIFI and Bluetooth modules 31, the satellite antenna group 60 and the corresponding satellite communication module 33, and the connection relationship between each communication module, and can realize functions such as Tiantong satellite calls, Tiantong satellite text messages, 5G cellular communications, V2X communications and WIFI hotspot sharing. Compared with the dispersed layout, it can save space occupied by the vehicle.

[0072] In addition to realizing the above-mentioned Tiantong satellite calls, Tiantong satellite text messages, 5G cellular communications, V2X communications and WIFI hotspot sharing functions, the vehicle-mounted communication terminal provided in the embodiment of the present application can also realize the digital key function.

[0073] In some embodiments, see Figure 1 , the above-mentioned vehicle-mounted communication terminal further includes: a digital key module 40;

[0074] The digital key module 40 includes a UWB (Ultra Wide Band) antenna 210 and a BLE (Bluetooth Low Energy) antenna 211 disposed on a first surface of the circuit board 10 .

[0075] In some possible implementations, the digital key module 40 may further include a UWB chip and a BLE chip. The UWB chip is connected to the UWB antenna 210 , and the BLE chip is connected to the BLE antenna 211 .

[0076] The BLE chip can sense whether the owner is within the sensing range through the BLE antenna 211. When the owner is within the sensing range, the UWB chip can be awakened. The UWB chip locates the owner through the UWB antenna 210, and automatically unlocks the door when the owner is at the door position and the door handle is pulled.

[0077] In the related art, the digital key function is realized only through the BLE antenna, but the positioning accuracy realized by the BLE antenna is poor, and the digital key often fails. The embodiment of the present application combines the BLE antenna and the UWB antenna to achieve accurate positioning, reduce the probability of digital key failure, and improve the success rate of the remote control function.

[0078] See also Figure 1 The above-mentioned vehicle-mounted communication terminal also includes: a communication interface 213 for communicating with external devices; the communication interface 213 is arranged on the side of the circuit board 10.

[0079] The vehicle-mounted communication terminal can communicate with various control units or other devices of the vehicle through the communication interface 213. Specifically, the vehicle-mounted communication terminal can also include an MCU chip, and the MCU chip communicates with various control units or other devices of the vehicle through the communication interface 213.

[0080] The aforementioned communication modules and the UWB chip and BLE chip of the digital key module 40 are all connected to the above-mentioned MCU chip, and can communicate with the various control units or other devices of the vehicle through the MCU chip and the above-mentioned communication interface 213. If the above-mentioned communication modules or modules are dispersed in different positions of the vehicle, then each communication module or module requires a separate MCU chip, and the embodiment of the present application integrates each communication module and the digital key module in one terminal, and only one MCU chip is required to realize the corresponding function, which can save chips and save space. Similarly, each communication module or module requires power supply, and a power management chip is required to realize power management. By integrating each communication module and the digital key module in one terminal, power management chips can also be saved and space can be saved.

[0081] The above describes which antenna groups the vehicle-mounted communication terminal includes. The following will further describe the specific antennas included in each antenna group and the layout position of each antenna.

[0082] In some embodiments, see Figure 1, the 5G and V2X antenna group 20 includes a 5G main antenna 23, a 5G diversity antenna 27, a first 5G MIMO (Multiple-Input Multiple-Output) antenna 24, a second 5G MIMO antenna 26 and a first V2X antenna 25;

[0083] The WIFI and Bluetooth antenna group 30 includes a WIFI and Bluetooth integrated antenna 21 and a first WIFI antenna 22;

[0084] A WIFI and Bluetooth integrated antenna 21, a first WIFI antenna 22, a 5G main antenna 23 and a first 5G MIMO antenna 24 are sequentially arranged along the first long side of the first surface;

[0085] A first V2X antenna 25, a second 5G MIMO antenna 26, a 5G diversity antenna 27, a UWB antenna 210 and a BLE antenna 211 are sequentially arranged along the second long side of the first surface.

[0086] See also Figure 1 , the above-mentioned vehicle-mounted communication terminal further includes: a positioning antenna 29 arranged on the first surface of the circuit board 10; the satellite antenna group 60 includes a satellite communication antenna 28;

[0087] A satellite communication antenna 28 and a positioning antenna 29 are arranged at intervals along the first wide side of the first surface.

[0088] The WIFI and Bluetooth integrated antenna 21 integrates the second WIFI antenna and the Bluetooth antenna together, which can reduce space occupation and make the vehicle-mounted communication terminal more compact and lightweight.

[0089] The 5G main antenna 23, the 5G diversity antenna 27, the first 5G MIMO antenna 24, the second 5G MIMO antenna 26 and the first V2X antenna 25 are all connected to the 5G and V2X module 32. The WIFI and Bluetooth integrated antenna 21 and the first WIFI antenna 22 are all connected to the WIFI and Bluetooth module 31. The satellite communication antenna 28 is connected to the satellite communication module 33.

[0090] The first long side and the second long side are two long sides of the first surface of the circuit board 10. The order of the antennas arranged along the first long side and the order of the antennas arranged along the second long side are the same order, for example, both are from left to right or from right to left. The second wide side is one of the wide sides of the first surface of the circuit board 10.

[0091] In order to ensure good performance and high isolation of the antenna, there is a certain distance between each antenna. The distance between them can be determined through experiments according to actual needs and is not specifically limited here.

[0092] The WIFI and Bluetooth integrated antenna 21, the first WIFI antenna 22, the 5G main antenna 23 and the first 5G MIMO antenna 24 can be set close to the first long side, that is, the distance from the first long side is 0, or there can be a certain distance between them and the first long side. The size of the distance can be set according to actual needs.

[0093] The first V2X antenna 25, the second 5G MIMO antenna 26, the 5G diversity antenna 27, the UWB antenna 210 and the BLE antenna 211 can be arranged close to the second long side, that is, the distance from the second long side is 0, or there can be a certain distance between them and the second long side. The size of the distance can be set according to actual needs.

[0094] The satellite communication antenna 28 and the positioning antenna 29 may be at a certain distance from the first wide side, and the size of the distance may be set according to actual needs. Among them, the positioning antenna 29 may be a GNSS positioning antenna, which may support L1 and L5 dual-frequency positioning to achieve high-precision positioning. Figure 1 , the satellite communication antenna 28 is closer to the first 5G MIMO antenna 24 , and the positioning antenna 29 is closer to the BLE antenna 211 .

[0095] In the embodiment of the present application, a WIFI and Bluetooth integrated antenna 21, a first WIFI antenna 22, a 5G main antenna 23 and a first 5G MIMO antenna 24 are arranged in sequence along the first long side of the first surface; a first V2X antenna 25, a second 5G MIMO antenna 26, a 5G diversity antenna 27, a UWB antenna 210 and a BLE antenna 211 are arranged in sequence along the second long side of the first surface; a satellite communication antenna 28 and a positioning antenna 29 are arranged in sequence along the first wide side of the first surface; and there is a certain interval between the antennas, which can ensure that the antennas do not interfere with each other or the interference is small, and have high isolation, so that each antenna has good receiving and transmitting performance.

[0096] In a preferred embodiment, see Figure 1, the 5G main antenna 23 can be set at the upper right position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the 5G diversity antenna 27 can be set at the lower middle position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the first 5G MIMO antenna 24 can be set at the upper right corner of the first surface of the circuit board 10 along the length direction of the circuit board 10; the second 5G The MIMO antenna 26 can be set at the lower left position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the first V2X antenna 25 can be set at the lower left corner position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the WIFI and Bluetooth integrated antenna 21 can be set at the upper left position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the first WIFI antenna 22 can be set at the upper middle position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the UWB antenna 210 and the BLE antenna 211 can be set at the lower right position of the first surface of the circuit board 10 along the length direction of the circuit board 10; the satellite communication antenna 28 can be set at the upper right position of the first surface of the circuit board 10 along the width direction of the circuit board 10; the positioning antenna 29 can be set at the lower right position of the first surface of the circuit board 10 along the width direction of the circuit board 10.

[0097] The layout positions of the antennas in this embodiment can make the performance of the antennas of the vehicle-mounted communication terminal in the best performance state. After testing and verification, the antenna performance index of the embodiment of this application is 3+dB ahead.

[0098] In some possible implementations, see Figure 1 The vehicle-mounted communication terminal may further include a backup battery 216 disposed on the circuit board 10. The backup battery 216 may provide power to the vehicle when the vehicle is powered off.

[0099] In the above-mentioned embodiment, the vehicle-mounted communication terminal includes the first V2X antenna 25, but in order to ensure the V2X communication performance of the vehicle, a V2X antenna is usually provided at both the front and rear ends of the vehicle. Figure 1 , the vehicle communication terminal provided in the embodiment of the present application may further include: a V2X interface 212 for connecting a second V2X antenna;

[0100] The 5G and V2X module 32 is connected to the second V2X antenna via the V2X interface 212 .

[0101] The V2X interface 212 is disposed on a side of the circuit board 10. The side where the V2X interface 212 is located is the side where the second wide side of the first surface of the circuit board 10 is located. The first wide side and the second wide side are two wide sides of the first surface of the circuit board 10.

[0102] The V2X interface 212 may be a Fakra connector.

[0103] In order to ensure the front and rear V2X reception performance of the vehicle, the second V2X antenna and the first V2X antenna 25 are located one in front of the other in the vehicle. If the vehicle communication terminal is installed at the front of the vehicle, the second V2X antenna is installed at the rear of the vehicle; if the vehicle communication terminal is installed at the rear of the vehicle, the second V2X antenna is installed at the front of the vehicle.

[0104] The above embodiment introduces that the vehicle-mounted communication terminal includes multiple communication modules located on the second surface of the circuit board 10. However, if the communication module is overheated, the communication performance will be affected. In order to avoid overheating of the communication module, the vehicle-mounted communication terminal is also provided with a metal heat dissipation structure.

[0105] In some embodiments, see Figure 4 , the above-mentioned vehicle-mounted communication terminal further includes: a metal heat dissipation structure 51;

[0106] The metal heat dissipation structure 51 is connected to at least two of the multiple communication modules through a heat dissipation silicone sheet.

[0107] The metal heat dissipation structure 51 can cover the three modules of the 5G and V2X module 32, the WIFI and Bluetooth module 31 and the satellite communication module 33, and provide heat dissipation for the three modules.

[0108] In order to avoid the metal heat dissipation structure 51 being too large and affecting the antenna performance, the metal heat dissipation structure 51 can cover two modules among the 5G and V2X module 32, the WIFI and Bluetooth module 31 and the satellite communication module 33, for example, covering the 5G and V2X module 32 and the satellite communication module 33.

[0109] Each module connected to the metal heat dissipation structure 51 can be connected to the metal heat dissipation structure 51 through a heat dissipation silicone sheet of the same size as the module. The heat dissipation silicone sheet can also be called a thermal conductive silicone sheet.

[0110] The embodiment of the present application can ensure good heat dissipation of the communication module through the metal heat dissipation structure 51, thereby preventing the communication module from overheating and affecting the communication performance.

[0111] The above introduces the association between the metal heat dissipation structure 51 and each communication module. The following further introduces the installation position of the metal heat dissipation structure 51.

[0112] In some embodiments, see Figure 4 , the above-mentioned vehicle-mounted communication terminal further includes: a lower housing 50 disposed opposite to the second surface of the circuit board 10;

[0113] The metal heat dissipation structure 51 is embedded in the lower housing 50 .

[0114] The metal heat dissipation structure 51 may be a metal heat sink. Its material may be aluminum or other materials with good heat dissipation performance. Aluminum has good thermal conductivity and can quickly transfer heat from the heat source to the heat dissipation surface. Aluminum is lighter than other metal materials and can meet the requirements of lightweight vehicles.

[0115] The metal heat dissipation structure 51 can increase the heat dissipation surface area and improve the heat dissipation efficiency through three-dimensional structures such as grooves and protrusions.

[0116] The metal heat dissipation structure 51 is embedded in the lower housing 50, so that the vehicle-mounted communication terminal has no protrusions and can be deployed stealthily. The lower housing 50 is partially embedded with the metal heat dissipation structure 51, which can ensure good heat dissipation of the communication module.

[0117] In some possible implementations, see Figure 1 The vehicle-mounted communication terminal may further include an Ethernet interface 214 disposed on the side of the circuit board 10 and an Ethernet switch chip 215 disposed on the first surface of the circuit board 10. The Ethernet interface 214 is connected to the Ethernet switch chip 215.

[0118] The communication interface 213 , the Ethernet interface 214 , and the V2X interface 212 are located on the same side of the circuit board 10 .

[0119] In some possible implementations, the vehicle-mounted communication terminal may further include an upper housing fixedly connected to the lower housing 50 . The upper housing is disposed opposite to the first surface of the circuit board 10 .

[0120] The upper shell is provided with a waterproof eave on one side of the communication interface 213 for waterproofing.

[0121] The size of the vehicle-mounted communication terminal provided in the embodiment of the present application can be 280mm*100mm*30mm. Compared with products with the same functions, the size of the vehicle-mounted communication terminal in the embodiment of the present application has a great advantage and is convenient for vehicle-mounted layout. In order to ensure good reception performance of the antenna, the structural main body of the vehicle-mounted communication terminal can be PC and ABS. The vehicle-mounted communication terminal is designed with an installation structure along the length direction, which is more conducive to vehicle installation.

[0122] It should be noted that in order to ensure the performance of antennas, modules and other components, there is a certain distance between any two components (antennas, modules and other components) in the vehicle-mounted communication terminal in the embodiment of the present application, and the specific size of the distance can be determined through experiments according to actual usage requirements.

[0123] The vehicle-mounted communication terminal of the embodiment of the present application can be used as a new T-Box. The embodiment of the present application integrates the antenna, satellite communication and T-Box to form a new integrated form with a high degree of integration, so that the antenna is concentrated instead of being dispersed, and can support more antennas; cable-free, which can reduce the weight of the vehicle and reduce the investment cost of antenna layout engineering; invisible deployment, no protrusions, the whole vehicle is seamless; integrated antenna design, integrated antenna and T-Box can obtain better signals, no RF cable, can reduce the insertion loss in the car; using a frequency-divided antenna similar to a mobile phone, no additional vehicle antenna layout is required. In addition, the wireless performance indicators of the vehicle-mounted communication terminal are 3+dB ahead, the communication capabilities at the edge of the network are greatly enhanced, and the success rate of functions such as remote control is greatly improved.

[0124] Corresponding to the above-mentioned vehicle-mounted communication terminal, an embodiment of the utility model further provides a vehicle, comprising any one of the above-mentioned vehicle-mounted communication terminals, which has the same beneficial effects as the vehicle-mounted communication terminal.

[0125] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle-mounted communication terminal, characterized in that: include: Circuit boards; A plurality of antenna groups disposed on a first surface of the circuit board; as well as, A plurality of communication modules are arranged on the second surface of the circuit board; The antenna groups and the communication modules are connected in a one-to-one correspondence.

2. The vehicle-mounted communication terminal according to claim 1, characterized in that: The multiple antenna groups include 5G and V2X antenna groups, WIFI and Bluetooth antenna groups, and satellite antenna groups; The multiple communication modules include 5G and V2X modules, WIFI and Bluetooth modules and satellite communication modules; The 5G and V2X antenna groups are connected to the 5G and V2X modules, the WIFI and Bluetooth antenna groups are connected to the WIFI and Bluetooth modules, the satellite antenna group is connected to the satellite communication module, and the 5G and V2X modules are also connected to the WIFI and Bluetooth modules and the satellite communication module respectively.

3. The vehicle-mounted communication terminal according to claim 2, characterized in that: The vehicle-mounted communication terminal further includes: a digital key module; The digital key module includes a UWB antenna and a BLE antenna arranged on a first surface of the circuit board.

4. The vehicle-mounted communication terminal according to claim 3, characterized in that: The 5G and V2X antenna group includes a 5G main antenna, a 5G diversity antenna, a first 5G MIMO antenna, a second 5G MIMO antenna and a first V2X antenna; The WIFI and Bluetooth antenna group includes a WIFI and Bluetooth integrated antenna and a first WIFI antenna; The WIFI and Bluetooth integrated antenna, the first WIFI antenna, the 5G main antenna and the first 5G MIMO antenna are sequentially arranged along the first long side of the first surface; The first V2X antenna, the second 5G MIMO antenna, the 5G diversity antenna, the UWB antenna and the BLE antenna are arranged in sequence along the second long side of the first surface.

5. The vehicle-mounted communication terminal according to claim 2, characterized in that: The vehicle-mounted communication terminal further includes: a positioning antenna disposed on the first surface of the circuit board; The satellite antenna group includes a satellite communication antenna; The satellite communication antenna and the positioning antenna are arranged at intervals along the first wide side of the first surface.

6. The vehicle-mounted communication terminal according to claim 2, characterized in that: The vehicle-mounted communication terminal further includes: a V2X interface for connecting a second V2X antenna; the V2X interface is arranged on a side of the circuit board; The 5G and V2X modules are connected to the second V2X antenna via the V2X interface.

7. The vehicle-mounted communication terminal according to claim 1, characterized in that: The vehicle-mounted communication terminal further includes: a metal heat dissipation structure; The metal heat dissipation structure is connected to at least two of the multiple communication modules through a heat dissipation silicone sheet.

8. The vehicle-mounted communication terminal according to claim 7, characterized in that: The vehicle-mounted communication terminal further includes: a lower housing disposed opposite to the second surface of the circuit board; The metal heat dissipation structure is embedded in the lower shell.

9. The vehicle-mounted communication terminal according to any one of claims 1 to 8, characterized in that: The vehicle-mounted communication terminal also includes: a communication interface for communicating with an external device; The communication interface is arranged on a side surface of the circuit board.

10. A vehicle, characterized in that: It comprises the vehicle-mounted communication terminal as claimed in any one of claims 1 to 9.

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