CN220984846U - Flat antenna - Google Patents

Abstract

The application provides a panel antenna; the panel antenna at least comprises a bottom shell, a PCB (printed circuit board) fixed in the bottom shell, an antenna assembly arranged on one surface of the PCB, a chip module arranged in the middle of a cavity between the bottom shell and the PCB, two surfaces of the chip module are respectively attached to the bottom shell and the PCB, and a heat dissipation structure which extends over the bottom shell and has rectangular grooves sequentially arranged; the application realizes the miniaturization design of the antenna, is convenient for the installation of the panel antenna on the vehicle body, ensures the beautiful degree of the vehicle body, reduces the connector or the wire harness, reduces the manufacturing cost and enhances the communication quality; the chip module is arranged in the cavity, so that a plurality of functional requirements of calculation, communication, perception, data management and the like of the system can be met; meanwhile, the heat dissipation area is increased, and the heat dissipation performance is enhanced.

Description

Flat antenna

Technical Field

The application relates to the technical field of antennas, in particular to a panel antenna.

Background

With the continuous advance of the intellectualization and networking of automobiles, automobiles are just like a wireless communication node, and an antenna is a key component for realizing wireless communication, and the performance of the antenna directly affects the whole intelligent networking automobile system.

The traditional antenna is usually placed in a shark fin box on the roof, and the antennas are connected through connectors or wire harnesses, so that the working frequency of part of the antennas is high, the loss of the connectors or wire harnesses is high, and the system performance is reduced, and the communication quality is affected; and the heat radiation structure of traditional integrated antenna sets up in the upper cover of antenna box body generally, and the heat radiation area is comparatively restricted, and then can influence the performance of antenna.

Disclosure of utility model

The present application is directed to solving the above-mentioned problems, and provides an integrated planar antenna with increased heat dissipation area and improved antenna performance.

Specifically, the application provides a panel antenna which at least comprises a bottom shell, a PCB (printed circuit board) fixed in the bottom shell, an antenna assembly, a chip module and a heat dissipation structure.

The antenna assembly is arranged on one surface of the PCB, which is away from the bottom shell.

The chip module is arranged at the middle position of the cavity between the bottom shell and the PCB, and two sides of the chip module are respectively attached to the bottom shell and the PCB.

The heat dissipation structure is a cuboid groove which is sequentially arranged, and the cuboid groove is distributed over the bottom shell.

In the technical scheme, the antenna assembly is arranged on one side of the PCB, so that all antennas are integrated in the bottom shell, the miniaturization design of the antennas is realized, the panel antennas are convenient to install on the vehicle body, the aesthetic degree of the vehicle body is ensured, the connectors or wire harnesses are reduced, the manufacturing cost is reduced, and the communication quality is enhanced; the chip module is arranged in the cavity, so that a plurality of functional requirements of calculation, communication, perception, data management and the like of the system can be met; meanwhile, the heat dissipation structure is arranged on the whole bottom shell, so that the heat dissipation area is increased, and the heat dissipation performance is enhanced.

The cuboid grooves are spaced by a preset distance, and the depth of each cuboid groove is equal to the thickness of the bottom shell.

In the technical scheme, the radiating surface area can be increased and the radiating efficiency can be improved through the arranged cuboid grooves; and the cuboid grooves are sequentially arranged and spaced, so that heat and temperature can be distributed more uniformly, the problems of heat point concentration and local overheating are avoided, and more stable heat dissipation performance is provided.

The antenna assembly at least comprises a GNSS antenna, a 5G antenna, a V2X antenna, a WIFI antenna and a UWB antenna.

In the above technical solution, the antenna assembly covers a plurality of wireless communication technologies, including Global Navigation Satellite System (GNSS), 5G communication, internet of vehicles (V2X), wireless regional network (WIFI) and Ultra Wideband (UWB), and such combination enables the antenna box to support a plurality of communication technologies, so as to meet different communication requirements; each antenna is specially used for a specific communication technology, has higher performance and receiving sensitivity, and can provide better signal coverage and connection stability; in addition, the antennas are integrated on the same PCB, so that the occupied space is small, and the space utilization rate is improved.

The GNSS antenna is arranged on the PCB, and the GNSS antenna is adjacent to the battery.

In the technical scheme, the setting position of the GNSS antenna can reduce shielding of other antenna elements on GNSS antenna signals, and improve GNSS signal receiving quality; and the battery can provide certain shielding effect, and the adjacent arrangement of the GNSS antenna and the battery can also reduce electromagnetic interference in the signal transmission process, thereby improving the stability and reliability of GNSS signals.

The 5G antenna comprises a first 5G antenna, a second 5G antenna, a third 5G antenna and a fourth 5G antenna; the first 5G antenna and the third 5G antenna are arranged on the first side of the GNSS antenna; the second 5G antenna is disposed on a second side adjacent to the first side of the GNSS antenna; the fourth 5G antenna is disposed on a third side opposite the first side of the GNSS antenna.

In the technical scheme, the 5G antennas are arranged on different sides of the GNSS antenna, so that mutual interference can be effectively reduced, signal quality and communication stability are ensured, and the space of the PCB can be utilized to the greatest extent; by providing a plurality of 5G antennas, stronger signal coverage and higher data transmission efficiency can be provided.

The WIFI antenna comprises a first WIFI antenna and a second WIFI antenna; the first WIFI antenna and the second WIFI antenna are arranged adjacently, and the first WIFI antenna and the fourth 5G antenna are arranged adjacently and arranged on the same side of the PCB.

In the above technical solution, by arranging the first WIFI antenna and the fourth 5G antenna adjacent to each other, they can be physically separated, so as to reduce interference between each other, which is helpful to improve signal quality and stability of WIFI and 5G communications, and reduce possible interference effect on communication performance; the two WIFI antennas can realize a multiple-input multiple-output technology, and provide better communication coverage and higher data transmission rate; simultaneously, with adjacent setting of first WIFI antenna and second WIFI antenna on same side, can effectively utilize the space.

The V2X antenna is disposed between the first 5G antenna and the third 5G antenna.

In the technical scheme, the V2X antenna is arranged between the first 5G antenna and the third 5G antenna, so that signal interference between the first 5G antenna and the third 5G antenna can be effectively reduced; the V2X communication and the 5G communication both need to use high-frequency wireless signals, electromagnetic interference between adjacent antennas can be reduced through reasonable antenna layout, and communication quality and reliability are improved; meanwhile, V2X communication is used as an important component of the Internet of vehicles, vehicles and other traffic participants are subjected to real-time data exchange, and the communication distance and communication speed can be improved by optimizing the antenna layout, so that the performance of the Internet of vehicles system is enhanced.

The UWB antenna is disposed on a second side adjacent to the first side of the GNSS antenna.

In the technical scheme, the UWB antenna is arranged on one side of the GNSS antenna, so that signals between the UWB antenna and the GNSS antenna can be effectively isolated, and interference between the UWB antenna and the GNSS antenna is reduced; and UWB antenna has excellent communication and locate function, can realize high-efficient signal receiving and dispatching in whole ultra wide band frequency band, and the consumption is lower simultaneously.

The first 5G antenna, the third 5G antenna, the fourth 5G antenna, the V2X antenna, the first WIFI antenna, the second WIFI antenna and the UWB antenna are vertically arranged on the periphery of the PCB.

The second 5G antenna is arranged in parallel between the GNSS antenna and the UWB antenna, and the second 5G antenna is vertical to the UWB antenna in space.

In the technical scheme, the antennas with different frequency bands and functions are vertically arranged on the periphery of the PCB or the PCB, so that the interference between the antennas can be reduced, the communication performance and the reliability are improved, the space utilization rate can be improved, the overlapping and the collision between the antennas are avoided, the physical space is saved, and the appearance and the size of the antenna box body are more flexible.

The panel antenna further comprises a battery, a connector and an upper cover; the battery is arranged on the PCB, the battery and the chip module are overlapped in space, and the overlapped area is a preset area; the connector is arranged on a fourth side opposite to the second side of the GNSS antenna, and the connector is positioned on the periphery of the PCB; the upper cover is buckled with the bottom shell.

In the technical scheme, the chip module integrates a plurality of functions, the chip module is configured in the cavity to meet the requirements of the system for calculating, communication, sensing, data management and the like, and the chip module is overlapped with the battery to provide more efficient power supply; the connector is arranged on the periphery of the PCB, so that external equipment or an external interface can be conveniently connected, more convenient access is provided, and interference with other antennas or components is avoided; in addition, the upper cover and the bottom shell are buckled to form a closed antenna box body, so that the protection of components in the box body is facilitated, and the normal operation of communication is ensured.

Compared with the prior art, the application has the beneficial effects that:

According to the application, the PCB is arranged in the bottom shell, the antenna component is arranged on the PCB, the chip module is arranged in the middle position of the cavity between the bottom shell and the PCB, and meanwhile, the whole bottom shell is provided with the heat dissipation structure, so that the miniaturization design of the antenna is realized by the arrangement mode and the related antenna structure, the panel antenna is convenient to install on the vehicle body, the aesthetic degree of the vehicle body is ensured, the connector or the wire harness is reduced, the manufacturing cost is reduced, and the communication quality is enhanced; the chip module is arranged in the cavity, so that a plurality of functional requirements of calculation, communication, perception, data management and the like of the system can be met; meanwhile, the heat dissipation area is increased, and the heat dissipation performance is enhanced.

The application solves the technical problems of system performance reduction and communication quality influence caused by the fact that the antenna is placed in the shark fin box and connected with the antenna through the connector or the wire harness in the prior art, and also solves the technical problems of limited heat dissipation area and further antenna performance influence caused by the fact that the heat dissipation structure is arranged on the upper cover of the antenna box body in the prior art.

Drawings

Fig. 1 is a schematic diagram of a panel antenna according to the present application.

Fig. 2 is a schematic view of a mounting position of a panel antenna according to the present application.

Fig. 3 is a schematic diagram of an installation position of a chip module according to the present application.

Fig. 4 is a schematic view of a heat dissipation structure according to the present application.

Fig. 5 is a schematic view of the upper cover according to the present application.

Reference numerals illustrate:

The antenna comprises a 1-flat antenna, a 2-bottom shell, a 3-PCB board, a 4-antenna assembly, a 41-GNSS antenna, a 42-V2X antenna, a 43-UWB antenna, a 44-first 5G antenna, a 45-second 5G antenna, a 46-third 5G antenna, a 47-fourth 5G antenna, a 48-first WIFI antenna, a 49-second WIFI antenna, a 5-chip module, a 6-heat dissipation structure, a 61-cuboid groove, a 7-spoiler, an 8-battery, a 9-connector and a 10-upper cover.

Detailed Description

The application provides a panel antenna, which solves the technical problems of system performance reduction and communication quality influence caused by placing an antenna in a shark fin box and connecting the antenna through a connector or a wire harness in the prior art; the antenna box is also used for solving the technical problems that in the prior art, the heat dissipation structure is arranged on the upper cover of the antenna box body, the heat dissipation area is limited, and the performance of the antenna is affected.

A patch antenna according to the present application will be described in further detail with reference to specific embodiments and drawings.

Referring to fig. 1, the present application provides a panel antenna 1, which at least includes a bottom case 2, a PCB 3 fixed inside the bottom case 2, an antenna assembly 4, a chip module 5, and a heat dissipation structure 6.

In this embodiment, the panel antenna 1 is disposed at a middle position of the spoiler 7 (see fig. 2) at the rear side of the vehicle body, and the spoiler 7 is made of plastic material, which has no influence on the antenna performance.

The antenna assembly 4 is arranged on one surface of the PCB 3, which is away from the bottom shell 2.

It should be noted that, through setting up antenna assembly 4 in PCB board 3 one side for all antennas have all integrated in the inside of drain pan 2, have realized the miniaturized design of antenna, be convenient for panel antenna 1 at the installation of automobile body, and guaranteed the aesthetic measure of automobile body, and reduced connector or pencil, reduced the cost of manufacture, strengthened communication quality.

Referring to fig. 3, the chip module 5 is disposed at a middle position of the cavity between the bottom case 2 and the PCB 3, and two sides of the chip module 5 are respectively attached to the bottom case 2 and the PCB 3.

It should be noted that, the chip module 5 generally includes a processor chip, a memory chip, a communication chip, a sensor, a power management, and the like, and the configuration of the chip module 5 in the cavity can satisfy multiple functional requirements of computing, communication, sensing, and data management of the system.

Referring to fig. 3 and 4, the heat dissipation structure 6 is a rectangular parallelepiped groove 61 sequentially arranged, and the rectangular parallelepiped groove 61 extends over the bottom case 2.

By providing the heat dissipation structure 6 in the entire bottom case 2, the heat dissipation area is increased, and the heat dissipation performance is enhanced.

Further, the rectangular grooves 61 are spaced apart from each other by a predetermined distance, and the depth of the rectangular grooves 61 is equal to the thickness of the bottom case 2.

It should be noted that the preset distance is not limited herein, and those skilled in the art may set the preset distance according to the needs in practical application.

It should be noted that, by arranging the rectangular grooves 61, the heat dissipation surface area can be increased, and the heat dissipation efficiency can be improved; and the rectangular grooves 61 are sequentially arranged and spaced, so that heat and temperature can be distributed more uniformly, the problems of heat point concentration and local overheating are avoided, and more stable heat dissipation performance is provided.

Further, the antenna assembly 4 at least includes a GNSS antenna 41, a 5G antenna, a V2X antenna 42, a WIFI antenna, and a UWB antenna 43.

In this embodiment, the GNSS antenna 41 is preferably a ceramic antenna structure, and the 5G antenna, the V2X antenna 42, the WIFI antenna and the UWB antenna 43 are preferably steel sheet antenna structures, and each steel sheet antenna structure is connected to the PCB 3 by welding.

It should be noted that, the antenna assembly 4 covers various wireless communication technologies, including Global Navigation Satellite System (GNSS), 5G communication, internet of vehicles (V2X), wireless regional network (WIFI) and Ultra Wideband (UWB), and such combination enables the antenna box to support various communication technologies, so as to meet different communication requirements; each antenna is specially used for a specific communication technology, has higher performance and receiving sensitivity, and can provide better signal coverage and connection stability; in addition, the antennas are integrated on the PCB 3, so that the occupied space is small, and the space utilization rate is improved.

Further, the GNSS antenna 41 is disposed on the PCB 3, and the GNSS antenna 41 is adjacent to the battery 8.

It should be noted that, the setting position of the GNSS antenna 41 may reduce shielding of other antenna elements to the GNSS antenna 41 signal, and improve the GNSS signal receiving quality; and the battery 8 can provide a certain shielding effect, and the arrangement of the GNSS antenna 41 adjacent to the battery 8 can also reduce electromagnetic interference in the signal transmission process, so that the stability and reliability of GNSS signals are improved.

Further, the 5G antennas include a first 5G antenna 44, a second 5G antenna 45, a third 5G antenna 46, and a fourth 5G antenna 47; the first 5G antenna 44 and the third 5G antenna 46 are disposed on a first side of the GNSS antenna 41; the second 5G antenna 45 is disposed on a second side adjacent to the first side of the GNSS antenna 41; the fourth 5G antenna 47 is disposed on a third side opposite the first side of the GNSS antenna 41.

In this embodiment, the first 5G antenna 44 is preferably a 5G diversity antenna, the second 5G antenna 45 is preferably a 5G main set antenna, and the third 5G antenna 46 and the fourth 5G antenna 47 are each preferably MIMO antennas.

It should be noted that, by arranging the 5G antennas on different sides of the GNSS antenna 41, interference between each other can be effectively reduced, signal quality and stability of communication are ensured, and space of the PCB 3 can be utilized to the maximum extent; by providing a plurality of 5G antennas, stronger signal coverage and higher data transmission efficiency can be provided.

Further, the WIFI antennas include a first WIFI antenna 48 and a second WIFI antenna 49; the first WIFI antenna 48 and the second WIFI antenna 49 are disposed adjacent to each other, and the first WIFI antenna 48 is adjacent to the fourth 5G antenna 47 and disposed on the same side of the PCB 3.

It should be noted that, by disposing the first WIFI antenna 48 adjacent to the fourth 5G antenna 47, they may be physically separated, so as to reduce interference between them, which helps to improve signal quality and stability of WIFI and 5G communications, and reduce possible interference impact on communication performance; the two WIFI antennas can realize a multiple-input multiple-output technology, and provide better communication coverage and higher data transmission rate; meanwhile, the first WIFI antenna 48 and the second WIFI antenna 49 are adjacently arranged on the same side, so that space can be effectively utilized.

Further, the V2X antenna 42 is disposed between the first 5G antenna 44 and the third 5G antenna 46.

It should be noted that, the V2X antenna 42 is disposed between the first 5G antenna 44 and the third 5G antenna 46, so that signal interference between them can be effectively reduced; the V2X communication and the 5G communication both need to use high-frequency wireless signals, electromagnetic interference between adjacent antennas can be reduced through reasonable antenna layout, and communication quality and reliability are improved; meanwhile, V2X communication is used as an important component of the Internet of vehicles, vehicles and other traffic participants are subjected to real-time data exchange, and the communication distance and communication speed can be improved by optimizing the antenna layout, so that the performance of the Internet of vehicles system is enhanced.

Further, the UWB antenna 43 is disposed on a second side adjacent to the first side of the GNSS antenna 41.

It should be noted that, by disposing the UWB antenna 43 at one side of the GNSS antenna 41, signals between the two can be effectively isolated, and interference between the two can be reduced; and the UWB antenna 43 has excellent communication and positioning functions, can realize efficient signal receiving and transmitting in the whole ultra-wideband frequency band, and has lower power consumption.

Further, the first 5G antenna 44, the third 5G antenna 46, the fourth 5G antenna 47, the V2X antenna 42, the first WIFI antenna 48, the second WIFI antenna 49, and the UWB antenna 43 are vertically disposed on the periphery of the PCB 3.

The second 5G antenna 45 is disposed in parallel between the GNSS antenna 41 and the UWB antenna 43, and the second 5G antenna 45 is spatially perpendicular to the UWB antenna 43.

It should be noted that, by vertically arranging antennas with different frequency bands and functions on the periphery of the PCB 3 or on the PCB 3, interference between the antennas can be reduced, communication performance and reliability can be improved, space utilization can be improved, overlapping and collision between the antennas are avoided, physical space is saved, and appearance and size of the antenna box are more flexible; and 4 5G antennas, 2 WIFI antennas, 1 UWB antenna 43, 1 GNSS antenna 41 and 1V 2X antenna 42 are integrated on the PCB 3, 9 antennas are integrated in total, and the integration level is very high.

Further, the panel antenna 1 further includes a battery 8, a connector 9, and an upper cover 10 (see fig. 5).

Further, referring to fig. 3, the battery 8 is disposed on the PCB 3, the battery 8 and the chip module 5 are spatially overlapped, and the overlapping area is a predetermined area.

It should be noted that, the chip module 5 integrates a plurality of functions, the configuration of the chip module 5 in the cavity can meet a plurality of functional requirements of calculation, communication, perception, data management and the like of the system, and the chip module 5 and the battery 8 are overlapped, so that more efficient power supply can be provided; meanwhile, the preset area is not limited herein.

Further, the connector 9 is disposed on a fourth side opposite to the second side of the GNSS antenna 41, and the connector 9 is located at the periphery of the PCB 3.

It should be noted that, by disposing the connector 9 at the periphery of the PCB 3, it is possible to conveniently connect to an external device or an external interface, provide more convenient access, and not interfere with other antennas or components.

Further, the upper cover 10 is buckled with the bottom shell 2.

Preferably, the upper cover 10 and the bottom shell 2 are buckled to form a T-BOX flat antenna BOX, and the length of the antenna BOX is 196.5mm, the width of the antenna BOX is 150mm, and the height of the antenna BOX is 35mm; it can be seen that the small size of the antenna BOX is beneficial to integrating the T-BOX flat antenna BOX into the position of the spoiler 7, and is beneficial to protecting the components in the BOX body and ensuring the normal operation of communication.

In summary, the present application provides a panel antenna 1; through arranging the PCB 3 in the bottom shell 2, arranging the antenna component 4 on the PCB 3, arranging the chip module 5 in the middle position of the cavity between the bottom shell 2 and the PCB 3, and arranging the whole bottom shell 2 into the heat dissipation structure 6, the miniaturization design of the antenna is realized, the panel antenna is convenient to install on a vehicle body, the aesthetic degree of the vehicle body is ensured, the connector or the wire harness is reduced, the manufacturing cost is reduced, and the communication quality is enhanced; the chip module is arranged in the cavity, so that a plurality of functional requirements of calculation, communication, perception, data management and the like of the system can be met; meanwhile, the heat dissipation area is increased, and the heat dissipation performance is enhanced.

Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above illustrative embodiments are merely exemplary and are not intended to limit the scope of the present application thereto. Various changes and modifications may be made therein by one of ordinary skill in the art without departing from the scope and spirit of the application. All such changes and modifications are intended to be included within the scope of the present application as set forth in the appended claims.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the application has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.

Claims (10)

1. The panel antenna at least comprises a bottom shell and a PCB (printed circuit board) fixed in the bottom shell, and is characterized by further comprising an antenna assembly, a chip module and a heat dissipation structure;

the antenna component is arranged on one surface of the PCB, which is away from the bottom shell;

The chip module is arranged at the middle position of the cavity between the bottom shell and the PCB, and two sides of the chip module are respectively attached to the bottom shell and the PCB;

The heat dissipation structure is a cuboid groove which is sequentially arranged, and the cuboid groove is distributed over the bottom shell.

2. The panel antenna as claimed in claim 1, wherein the rectangular recesses are spaced apart from each other by a predetermined distance, and the depth of the rectangular recesses is equal to the thickness of the bottom chassis.

3. The panel antenna of claim 2, wherein the antenna assembly comprises at least a GNSS antenna, a 5G antenna, a V2X antenna, a WIFI antenna, and a UWB antenna.

4. The tablet antenna of claim 3, wherein the GNSS antenna is disposed on the PCB board and the GNSS antenna is adjacent to a battery.

5. The panel antenna of claim 4, wherein the 5G antenna comprises a first 5G antenna, a second 5G antenna, a third 5G antenna, and a fourth 5G antenna;

The first 5G antenna and the third 5G antenna are arranged on the first side of the GNSS antenna;

the second 5G antenna is disposed on a second side adjacent to the first side of the GNSS antenna;

the fourth 5G antenna is disposed on a third side opposite the first side of the GNSS antenna.

6. The panel antenna of claim 5, wherein the WIFI antenna comprises a first WIFI antenna and a second WIFI antenna;

The first WIFI antenna and the second WIFI antenna are arranged adjacently, and the first WIFI antenna and the fourth 5G antenna are arranged adjacently and arranged on the same side of the PCB.

7. The panel antenna of claim 6, wherein the V2X antenna is disposed between the first 5G antenna and a third 5G antenna.

8. The patch antenna of claim 7, wherein the UWB antenna is disposed on a second side adjacent to the first side of the GNSS antenna.

9. The panel antenna of claim 8, wherein the first 5G antenna, the third 5G antenna, the fourth 5G antenna, the V2X antenna, the first WIFI antenna, the second WIFI antenna, and the UWB antenna are vertically disposed on a periphery of the PCB;

The second 5G antenna is arranged in parallel between the GNSS antenna and the UWB antenna, and the second 5G antenna is vertical to the UWB antenna in space.

10. The panel antenna of claim 9, further comprising a battery, a connector, and a cover;

the battery is arranged on the PCB, the battery and the chip module are overlapped in space, and the overlapped area is a preset area;

the connector is arranged on a fourth side opposite to the second side of the GNSS antenna, and the connector is positioned on the periphery of the PCB;

The upper cover is buckled with the bottom shell.