Vehicle-mounted star network antenna

Abstract

The invention provides a vehicle-mounted star network antenna, and relates to the technical field of automobile antennae, and the vehicle-mounted star network antenna comprises a housing in which an installation space is formed; the first PCB and the second PCB are arranged in the mounting space in parallel and at an interval; the star network communication phased array module and the high-precision positioning module are arranged on the sides, away from each other, of the first PCB and the second PCB respectively, and a heat conduction layer is arranged between the star network communication phased array module and the shell; the first shielding structure and the second shielding structure are arranged on the sides, close to each other, of the first PCB and the second PCB respectively; the problems that in the prior art, a vehicle-mounted star network antenna is poor in heat dissipation performance, single in function and limited in anti-electromagnetic interference capacity are solved.

Description

Technical Field

[0001] This invention belongs to the field of automotive antenna technology, and more specifically, relates to an in-vehicle satellite network antenna. Background Technology

[0002] With the large-scale deployment of low-Earth orbit (LEO) satellite network communication technology, the demand for high-speed, low-latency, and all-weather satellite-to-ground communication in vehicle-mounted applications is generally increasing. As a core terminal component of the vehicle-mounted satellite network communication system, the structural design and performance of the vehicle-mounted satellite network antenna directly determine the stability, reliability, and vehicle compatibility of the communication. Unlike ordinary high-precision positioning antennas that only need to receive weak signals and typically have a power of ≤5W, vehicle-mounted satellite network antennas need to achieve two-way high-speed data transmission between the ground and LEO satellites 550 kilometers away. This necessitates a high-power design to ensure the stability of long-distance signal transmission, resulting in an overall antenna power significantly higher than that of ordinary positioning antennas.

[0003] The field of automotive satellite network antennas is currently in the technological exploration stage, with significant gaps in dedicated structural design. Combined with its core high-power operating characteristics, existing technologies face numerous bottlenecks that urgently need to be overcome. First, the heat dissipation performance is severely inadequate, failing to meet the inherent requirements of high-power operation: Vehicle-mounted satellite network antennas need to overcome complex spatial transmission losses and adapt to the high-speed movement characteristics of low-orbit satellites, maintaining high-power beam transmission and dynamic tracking. During operation, the chip and phased array unit generate significantly more heat than ordinary positioning antennas. However, existing vehicle-mounted antenna bases are mostly made of plastic or ordinary die-cast aluminum, with low thermal conductivity and no targeted heat dissipation structure. The overall lack of an efficient heat dissipation system leads to rapid heat accumulation, causing chip overheating and damage, significantly shortening antenna lifespan, and even triggering communication interruptions, making it impossible to guarantee long-term stable antenna operation. Second, the functional integration is low and susceptible to electromagnetic interference: Existing products mostly only have single satellite network communication functions, requiring an additional high-precision positioning antenna. This not only increases the overall vehicle installation cost, space occupation, and wiring complexity but also easily causes mutual interference between high-power satellite network communication signals and positioning signals. Simultaneously, the antenna has poor compatibility with the vehicle's power supply system and electromagnetic environment, is susceptible to electromagnetic radiation from vehicle electrical appliances, and has low energy conversion efficiency, making it difficult to balance the high-power communication requirements with the vehicle's low-power consumption demands.

[0004] In summary, given the rapid popularization of low-orbit satellite network technology and the increasingly urgent demand for vehicle-mounted satellite network antennas, there is an urgent need to develop a new type of vehicle-mounted satellite network antenna structure with efficient heat dissipation, adaptability to vehicle operating conditions, high functional integration, and excellent performance. This will help overcome the shortcomings of existing technologies, fully match the high-power operating characteristics of vehicle-mounted satellite network antennas, and promote the large-scale application of vehicle-mounted satellite network communication technology. Summary of the Invention

[0005] The vehicle-mounted satellite network antenna provided by the present application has the advantages of good heat dissipation performance, multiple functions, and strong anti-electromagnetic interference capability.

[0006] In order to achieve the above-mentioned purpose, the present application provides a vehicle-mounted satellite network antenna, comprising: a shell, an installation space being formed in the shell; a first PCB board and a second PCB board, the first PCB board and the second PCB board being arranged in parallel and spaced apart in the installation space; a satellite network communication phased array module and a high-precision positioning module, the satellite network communication phased array module and the high-precision positioning module being arranged on the mutually far sides of the first PCB board and the second PCB board respectively, and a heat conduction layer being arranged between the satellite network communication phased array module and the shell; a first shielding structure and a second shielding structure, the first shielding structure and the second shielding structure being arranged on the mutually close sides of the first PCB board and the second PCB board respectively.

[0007] Optionally, the shell comprises a heat dissipation base and an upper cover, and the satellite network communication phased array module is connected with the heat dissipation base through the heat conduction layer.

[0008] Optionally, the first PCB board and the second PCB board are respectively mounted on the heat dissipation base and the upper cover.

[0009] Optionally, the satellite network communication phased array module comprises a chip and a phased array unit, the chip and the phased array unit are patch-connected with the first PCB board, and form a first PCBA.

[0010] Optionally, the high-precision positioning module comprises a dielectric antenna, the dielectric antenna is welded with the second PCB board, and forms a second PCBA.

[0011] Optionally, the first shielding structure comprises a first shielding cover, and the first shielding cover shields the chip and the phased array unit.

[0012] Optionally, the second shielding structure comprises a second shielding cover and a third shielding cover, and the second shielding cover and the third shielding cover shield the second PCB board in a partitioned manner.

[0013] Optionally, a lower surface of the heat dissipation base is provided with a plurality of heat dissipation fins.

[0014] Optionally, an outer side of the heat dissipation base is provided with a mounting lug, and the mounting lug is provided with a mounting hole.

[0015] Optionally, a power supply line, a signal line and a connecting line are further included, the shell is provided with a wire outlet hole, the power supply line and the signal line are connected in the wire outlet hole through a wire outlet rubber sleeve and connected with the first PCB board, and the connecting line is connected between the first PCB board and the second PCB board.

[0016] The vehicle-mounted satellite network antenna has the advantages that the first PCB board and the second PCB board are arranged in parallel and at intervals in the mounting space of the shell, the satellite network communication phased array module and the high-precision positioning module are arranged on the mutually far sides of the first PCB board and the second PCB board respectively, the high-power satellite network communication phased array module and the low-power high-precision positioning module are integrated in the same shell, the high-power satellite network communication phased array module is connected with the shell through the heat conduction layer, the heat dissipation of the high-power satellite network communication phased array module is enhanced, and the satellite network communication phased array module and the high-precision positioning module are far away from each other and have excellent shielding effects through the first shielding structure and the second shielding structure, and the electromagnetic interference resistance is improved.

[0017] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, in which exemplary embodiments of the present application are shown.

[0019] Figure 1 A schematic diagram of an external structure of a vehicle-mounted satellite network antenna according to an embodiment of the present application is shown.

[0020] Figure 2 A schematic diagram of a side structure of Figure 1 is shown.

[0021] Figure 3 A schematic diagram of a top structure of Figure 1 is shown.

[0022] Figure 4 A schematic diagram of an exploded structure of a vehicle-mounted satellite network antenna according to an embodiment of the present application is shown.

[0023] BRIEF DESCRIPTION OF DRAWINGS 1, first PCB board; 2, second PCB board; 3, heat dissipation base; 4, upper cover; 5, dielectric antenna; 6, first shielding cover; 7, second shielding cover; 8, third shielding cover; 9, heat dissipation fin; 10, mounting ear. DETAILED DESCRIPTION

[0024] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it is to be understood that the application can be carried out in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0025] As shown in Figures 1 to 4 The present application provides a vehicle-mounted satellite network antenna, comprising: a housing, an installation space being formed in the housing; a first PCB board 1 and a second PCB board 2, the first PCB board 1 and the second PCB board 2 being arranged in parallel and spaced apart in the installation space; a satellite network communication phased array module and a high-precision positioning module, the satellite network communication phased array module and the high-precision positioning module being arranged on mutually far sides of the first PCB board 1 and the second PCB board 2 respectively, and a heat-conducting layer being arranged between the satellite network communication phased array module and the housing; a first shielding structure and a second shielding structure, the first shielding structure and the second shielding structure being arranged on mutually close sides of the first PCB board 1 and the second PCB board 2 respectively.

[0026] Specifically, to solve the problems of poor heat dissipation performance, single function, and limited anti-electromagnetic interference capability of the vehicle-mounted satellite network antenna in the prior art, the vehicle-mounted satellite network antenna provided by the present application has the first PCB board 1 and the second PCB board 2 arranged in parallel and spaced apart in the installation space of the housing, the satellite network communication phased array module and the high-precision positioning module are arranged on mutually far sides of the first PCB board 1 and the second PCB board 2 respectively, the integration of the high-power satellite network communication phased array module and the low-power high-precision positioning module in the same housing is realized, the high-power satellite network communication phased array module is connected with the housing through the heat-conducting layer, the heat dissipation of the high-power satellite network communication phased array module is enhanced, at the same time, the satellite network communication phased array module and the high-precision positioning module are far away from each other and excellent shielding effects of the two are achieved through the arrangement of the first shielding structure and the second shielding structure, and the anti-electromagnetic interference capability is improved.

[0027] Optionally, the housing comprises a heat dissipation base 3 and an upper cover 4, and the satellite network communication phased array module is connected with the heat dissipation base 3 through the heat-conducting layer.

[0028] Specifically, the heat dissipation base 3 of the housing is connected with the satellite network communication phased array module in contact through the heat-conducting layer, and the heat dissipation effect of the high-power satellite network communication phased array module is further improved.

[0029] In the present embodiment, the material of the heat dissipation base 3 is 6-series aluminum.

[0030] In the present embodiment, the material of the heat-conducting layer is a heat-conducting rubber pad. In the present embodiment, the material of the heat-conducting layer is a heat-conducting rubber pad.

[0031] Optionally, the first PCB board 1 and the second PCB board 2 are respectively installed on the heat dissipation base 3 and the upper cover 4.

[0032] Specifically, the first PCB board 1 and the second PCB board 2 are respectively installed on the heat dissipation base 3 and the upper cover 4 through the plurality of first screws and the plurality of second screws.

[0033] In the embodiment, the heat dissipation base 3 and the upper cover 4 are connected through the plurality of third screws.

[0034] Optionally, the star network communication phased array module includes a chip and a phased array unit, and the chip and the phased array unit are patch connected with the first PCB board 1 and form a first PCBA.

[0035] Specifically, the chip and the phased array unit of the star network communication phased array module are patch connected on the first PCB board 1, and the chip and the phased array unit are connected with the first circuit printed on the first PCB board 1 to form the first PCBA.

[0036] Optionally, the high-precision positioning module includes a dielectric antenna 5, and the dielectric antenna 5 is welded with the second PCB board 2 and forms a second PCBA.

[0037] Specifically, the dielectric antenna 5 of the high-precision positioning module is welded on the second PCB board 2, and the dielectric antenna 5 is connected with the second circuit printed on the second PCB board 2 to form the second PCBA.

[0038] Optionally, the first shielding structure includes a first shielding cover 6, and the first shielding cover 6 shields the chip and the phased array unit.

[0039] Specifically, the first shielding cover 6 is a shielding cover with a partition shielding function, and the first shielding cover 6 is connected to the side of the first PCB board 1 away from the star network communication phased array module, and achieves electromagnetic shielding effect for the chip and the phased array unit respectively.

[0040] Optionally, the second shielding structure includes a second shielding cover 7 and a third shielding cover 8, and the second shielding cover 7 and the third shielding cover 8 partitionally shield the second PCB board 2.

[0041] Specifically, the partition shielding on the second PCB board 2 adopts the second shielding cover 7 and the third shielding cover 8 which are independent of each other, and a gap is formed between the second shielding cover 7 and the third shielding cover 8, and the coverage of the second PCB board 2 is reduced to leave enough space to accommodate the connecting line connected between the first PCB board 1 and the second PCB board 2.

[0042] Optionally, the lower surface of the heat dissipation base 3 is provided with a plurality of heat dissipation fins 9.

[0043] Specifically, the plurality of heat dissipation fins 9 adopt a plurality of fin structures arranged at intervals, and the heat dissipation fins 9 are integrally formed on the lower side of the heat dissipation base 3.

[0044] Optionally, the outer side of the heat dissipation base 3 is provided with mounting lugs 10, and the mounting lugs 10 are provided with mounting holes.

[0045] Specifically, the mounting lugs 10 can be installed and fixed on the mounting surface by mounting fasteners through the mounting holes, and the plurality of heat dissipation fins 9 increase the heat dissipation area and avoid the adhesion between the heat dissipation base 3 and the mounting surface, thereby further enhancing the heat dissipation effect of the vehicle-mounted star network antenna in the installed state.

[0046] Optionally, the power supply line, the signal line and the connecting line are further included, the housing is provided with a wire outlet hole, the power supply line and the signal line are connected in the wire outlet hole through a wire outlet rubber sleeve and connected with the first PCB 1, and the connecting line is connected between the first PCB 1 and the second PCB 2.

[0047] Specifically, the second PCB 2 is connected with the first PCB 1 through the connecting line, the power supply line and the signal line are connected on the first PCB 1 and used for power supply and signal transmission of the vehicle-mounted star network antenna respectively, and the outer ends of the power supply line and the signal line are respectively connected with a first connector and a second connector; the wire outlet rubber sleeve is arranged in the wire outlet hole of the housing, and the power supply line and the signal line pass through the wire outlet rubber sleeve, thereby ensuring the sealing property of the housing.

[0048] In the embodiment, the wire outlet hole is arranged on the side wall of the upper cover 4.

[0049] In summary, the vehicle-mounted star network antenna provided by the application meets the core requirements of long-distance star-ground bidirectional transmission and phased array beam focusing for high-power operation of the vehicle-mounted star network antenna, solves the problems of lack of existing antenna heat dissipation system, poor heat dissipation performance, easy chip damage caused by high temperature, and insufficient communication stability, builds an efficient heat dissipation structure to ensure long-term stable operation of the antenna, realizes the integration of the functions of the high-power phased array architecture and the high-precision positioning low-power receiving architecture, reduces the installation cost and space occupation of additional components, eliminates the mutual interference of high-power communication signals and positioning signals through targeted design, and improves the comprehensive use value of the antenna.

[0050] In the technical level, the high-power working core characteristics of the vehicle-mounted satellite network antenna are accurately matched, the core technical bottlenecks of existing antenna heat dissipation, anti-interference and adaptability are broken through, the blank of high-power vehicle-mounted satellite network antenna special structure design is filled, the upgrading of vehicle-mounted satellite network communication terminal technology is promoted, the core support for the large-scale application of low-orbit satellite network technology in the vehicle-mounted field is provided; in the use level, the key problems of high-power vehicle-mounted satellite network antenna high-temperature damage and communication interruption are solved, the service life of the antenna is prolonged, the integrated design simplifies the whole vehicle installation process, reduces the use and maintenance cost, avoids high-power signal interference, and greatly improves the user's comprehensive use experience; in the working condition adaptation level, it can stably adapt to complex working conditions such as vehicle driving bumping, outdoor extreme temperature, vehicle-mounted electromagnetic interference, etc., guarantee high-speed satellite-ground communication of high-power antenna in all-weather and all-scenarios, fully meet the diversified high-bandwidth demand of vehicle-mounted entertainment, automatic driving data transmission, emergency communication, etc.; in the industry level: with technical innovation and industrialization prospect, it can be widely applied to various types of vehicles, effectively solve the engineering landing problem of high-power vehicle-mounted satellite network antenna, help the rapid development of vehicle-mounted satellite communication industry, drive the upgrading of related upstream and downstream industry chains, have significant economic and social benefits, and fill the market blank of vehicle-mounted satellite network antenna.

[0051] The above has described the embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A vehicular satellite network antenna, characterized by, include: A housing, within which an installation space is formed; A first PCB board and a second PCB board are arranged parallel to each other and spaced apart within the mounting space. The star network communication phased array module and the high-precision positioning module are respectively disposed on the mutually distant sides of the first PCB board and the second PCB board, and a heat-conducting layer is provided between the star network communication phased array module and the housing. The first shielding structure and the second shielding structure are respectively disposed on the adjacent sides of the first PCB board and the second PCB board.

2. The vehicular satellite mesh antenna of claim 1, wherein, The housing includes a heat dissipation base and a top cover, and the star network communication phased array module is connected to the heat dissipation base through the heat-conducting layer.

3. The vehicular satellite mesh antenna of claim 2, wherein, The first PCB board and the second PCB board are respectively mounted on the heat sink base and the top cover.

4. The vehicular satellite mesh antenna of claim 1, wherein, The star network communication phased array module includes a chip and a phased array unit. The chip and the phased array unit are surface-mount connected to the first PCB board to form a first PCBA.

5. The vehicular satellite mesh antenna of claim 1, wherein, The high-precision positioning module includes a dielectric antenna, which is soldered to the second PCB board to form a second PCBA.

6. The vehicular satellite mesh antenna of claim 4, wherein, The first shielding structure includes a first shielding cover, which shields the chip and the phased array unit.

7. The vehicular satellite mesh antenna of claim 5, wherein, The second shielding structure includes a second shielding cover and a third shielding cover, which provide partitioned shielding for the second PCB board.

8. The vehicular satellite mesh antenna of claim 2, wherein, The lower surface of the heat sink base is provided with multiple heat dissipation fins.

9. The vehicular satellite mesh antenna of claim 8, wherein, The heat dissipation base is provided with mounting ears on its outer side, and the mounting ears are provided with mounting holes.

10. The vehicular satellite mesh antenna of claim 1, wherein, It also includes a power supply line, a signal line, and a connecting line. The housing is provided with a cable outlet hole. The power supply line and the signal line are connected to the cable outlet hole through a cable outlet rubber sleeve and connected to the first PCB board. The connecting line is connected between the first PCB board and the second PCB board.

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