CN214957330U - Vehicle-mounted antenna system of automobile and automobile - Google Patents
Vehicle-mounted antenna system of automobile and automobile Download PDFInfo
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- CN214957330U CN214957330U CN202120766851.2U CN202120766851U CN214957330U CN 214957330 U CN214957330 U CN 214957330U CN 202120766851 U CN202120766851 U CN 202120766851U CN 214957330 U CN214957330 U CN 214957330U
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Abstract
The utility model provides a vehicle-mounted antenna system and car of car. The vehicle-mounted antenna system comprises a control circuit board assembly, wherein a hardware processor and a built-in antenna of the control circuit board assembly are integrated on the same control circuit board; the shark fin bottom plate of the shark fin antenna assembly is opposite to the control circuit board and is positioned on one side of the control circuit board, which is integrated with the built-in antenna, and the plurality of active antennas and the plurality of passive antennas are fixed and integrated on one side of the shark fin bottom plate, which is far away from the control circuit board; the radio frequency connecting assembly is connected with each active antenna and each passive antenna through the shark fin bottom plate and connects each active antenna and each passive antenna to the hardware processor; the control circuit board assembly, the shark fin antenna assembly and the radio frequency connecting assembly are integrated into a whole. According to the scheme, all the antennas required by automobile communication are integrated together, the integration level is high, and the occupation of the space in the automobile is reduced.
Description
Technical Field
The utility model relates to a vehicle antenna technical field, in particular to vehicle antenna system and car of car.
Background
With the continuous development of wireless technology, more and more wireless functions are integrated in the automobile electronic equipment. The vehicle-mounted antenna is the embodiment of the wireless function of the automobile.
At present, the main forms of vehicle-mounted antennas include shark fin antennas, glass antennas, pole antennas, controller board-mounted antennas, center console antennas, spoiler antennas, and the like, and the antennas can realize different functions and are located at different positions of a vehicle. However, with the rapid development of the automobile intelligent networking technology, the wireless communication technology is applied in a large scale, and the type and the requirement of the vehicle-mounted antenna are greatly improved. Dispersing the antenna at different locations in the vehicle can present a number of problems, such as: difficult placement, high cost, electromagnetic environmental challenges, unreasonable utilization of resources, etc.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the prior art and arrange the antenna dispersion and the wasting of resources that causes, arrange the higher scheduling problem of cost.
In order to solve the above problem, an embodiment of the present invention discloses an on-vehicle antenna system of an automobile, including: the control circuit board assembly comprises a control circuit board, a hardware processor and a built-in antenna, wherein the hardware processor is in communication connection with the built-in antenna, and the hardware processor and the built-in antenna are integrated on the same control circuit board; the shark fin antenna assembly comprises a shark fin bottom plate, a plurality of active antennas and a plurality of passive antennas, wherein the shark fin bottom plate is arranged opposite to the control circuit board and is positioned on one side of the control circuit board, which is integrated with the built-in antennas, and the active antennas and the passive antennas are fixed and integrated on one side of the shark fin bottom plate, which is far away from the control circuit board; the radio frequency connecting assembly is connected with each active antenna and each passive antenna through the shark fin bottom plate and connects each active antenna and each passive antenna to the hardware processor; the control circuit board assembly, the shark fin antenna assembly and the radio frequency connecting assembly are integrated into a whole.
By adopting the scheme, the built-in antenna is integrated on the control circuit board assembly, the active antenna and the passive antenna are integrated on the shark fin floor, and the control circuit board assembly, the shark fin antenna assembly and the radio frequency connecting assembly are integrated into a whole. Therefore, most of vehicle-mounted antennas required by the vehicle during information interaction can be integrated, the integration level of a vehicle-mounted antenna system is improved, and the problems of resource waste, high arrangement cost and the like caused by scattered arrangement of the antennas in the prior art are solved. In addition, the scheme can realize matching, filtering and amplification processing of various antennas in the limited size range of the control circuit board and the shark fin bottom board, and all radio frequency signals can be processed into bus signals through the control circuit and transmitted to other controllers of the automobile through radio frequency connection between the shark fin bottom board and the control circuit board, so that related interaction is realized.
According to another specific embodiment of the present invention, the vehicle-mounted antenna system of the vehicle disclosed in the embodiment of the present invention further includes a grounding member; the grounding part is fixedly connected to one side of the shark fin bottom plate facing the control circuit board; the grounding part is in a strip shape, is arranged in a direction parallel to the shark fin bottom plate, and extends out of the shark fin bottom plate and the control circuit board assembly; a space is formed between the grounding component and the control circuit board; the radio frequency connecting assembly is arranged in the space and penetrates through the grounding component.
By adopting the scheme, the grounding component is arranged, and the requirement of large-area reference grounding of each antenna, particularly the low-frequency antenna, can be met.
According to another specific embodiment of the present invention, the vehicle-mounted antenna system of the automobile disclosed in the embodiment of the present invention further comprises a housing, wherein the housing comprises a bottom shell, an upper inner shell, and an upper outer shell, and the bottom shell is disposed on one side of the grounding component away from the shark fin antenna assembly, and comprises a recessed portion and bottom shell extension portions disposed at two ends of the recessed portion; the control circuit board assembly is arranged in the concave part and is fixedly connected with the concave part; the bottom shell extension part is contacted with the part of the grounding part extending out of the control circuit board; the upper inner shell is arranged on one side of the grounding part far away from the control circuit board and comprises an accommodating part and inner shell extending parts arranged at two ends of the accommodating part; the accommodating part is covered outside the shark fin antenna assembly, and the extension part of the inner shell is contacted with the part of the grounding part extending out of the shark fin bottom plate; the upper outer shell is umbrella-shaped and is sleeved outside the upper inner shell; the upper shell is fixedly connected with a roof sheet metal of the automobile; the upper inner shell and the bottom shell are fixedly connected with a roof reinforcing rib of the automobile.
Adopt above-mentioned scheme, through setting up independent last shell in last inner shell outside, can avoid dust, liquid etc. to get into shark fin antenna module, influence the normal use of shark fin antenna module, and then improved dustproof, the waterproof performance of vehicle.
According to another specific embodiment of the present invention, the vehicle-mounted antenna system of the automobile disclosed in the embodiments of the present invention further includes a sealing ring disposed between the upper housing and the roof panel beating and disposed along the entire edge of the upper housing; and the sealing ring is sealed and fixedly connected with a roof sheet metal of the automobile.
Adopt above-mentioned scheme, through setting up the sealing washer, can strengthen on-vehicle antenna system's leakproofness, further prevented that dust, liquid etc. from getting into shark fin antenna module, influencing shark fin antenna module's use.
According to another specific embodiment of the present invention, the vehicle-mounted antenna system of the vehicle disclosed in the embodiment of the present invention, the control circuit board assembly is in communication connection with the vehicle communication system; the hardware processor comprises a signal processor and a signal converter; the signal processor is in communication connection with the signal converter; the built-in antenna comprises an in-vehicle short-distance communication antenna and a standby mobile communication antenna; wherein, the short-distance communication antenna and the standby mobile communication antenna in the vehicle are in communication connection with the signal processor through the signal converter.
By adopting the scheme, the control circuit board assembly is in communication connection with the whole vehicle communication system, and identification and processing of various radio frequency signals can be realized. And moreover, the antenna is in communication connection with the whole vehicle communication system, interaction with other controllers in the vehicle is realized, and multiplexing requirements of antennas with different functions can be met.
According to another specific embodiment of the present invention, the vehicle-mounted antenna system of the vehicle disclosed in the embodiment of the present invention further comprises a first matching circuit respectively connected between the short-range communication antenna in the vehicle, the standby mobile communication antenna and the signal converter; the signal converter comprises a digital-to-analog converter and an analog-to-digital converter, and the digital-to-analog converter is in communication connection with the analog-to-digital converter; the whole vehicle communication system comprises at least one of Ethernet, a controller local area network, a universal serial bus, a wireless local area network and a file distribution protocol.
According to another specific embodiment of the present invention, in the vehicular antenna system of an automobile disclosed in the embodiment of the present invention, the shark fin antenna assembly further includes a low noise amplifier circuit and a second matching circuit; moreover, each active antenna is connected with the radio frequency connecting component through a low-noise amplifying circuit; each passive antenna is connected with the radio frequency connecting component through a second matching circuit.
By adopting the scheme, the integration of the vehicle-mounted antenna system can be improved by integrating the low-noise amplification circuit and the second matching circuit in the shark fin antenna assembly, and the distance between the antenna and the low-noise amplification circuit and the distance between the antenna and the second matching circuit are short, so that the transmission efficiency can be improved.
According to another specific embodiment of the present invention, in the vehicular antenna system for an automobile disclosed in the embodiment of the present invention, the active antenna includes a satellite positioning antenna, a remote control antenna, and a radio antenna; and the passive antenna comprises a 4G mobile communication antenna, a 5G mobile communication antenna, a vehicle-to-everything transceiving antenna and an external Bluetooth local area network antenna.
According to another specific embodiment of the present invention, in the vehicular antenna system of the vehicle disclosed in the embodiment of the present invention, the radio frequency connection assembly includes at least two radio frequency coaxial connectors; and the low-noise amplification circuits corresponding to the active antennas and the second matching circuits corresponding to the passive antennas are respectively connected with different pins of the radio frequency coaxial connector.
By adopting the scheme, the active antennas and the passive antennas are connected to the control circuit board through the radio frequency coaxial connector, so that the transmission loss is low. Moreover, each antenna corresponds to different pins, so that the accuracy and the efficiency of data transmission can be improved.
The utility model discloses an embodiment has still disclosed an automobile, including the on-vehicle antenna system of the car as described above arbitrary embodiment to, the installation department has been seted up to the roof of car to shark fin antenna module passes the roof of car in making the on-vehicle antenna system of car, and the control circuit board subassembly sets up the inside at the car.
Adopt above-mentioned scheme, through the roof that passes the car with shark fin antenna module, and the control circuit board subassembly sets up in the inside of car, and the installation of being convenient for is dismantled, and can satisfy various structures such as ground connection, dustproof, waterproof, temperature, vibration, environment and reliability requirement.
The utility model has the advantages that:
according to the vehicle-mounted antenna system of the automobile, the built-in antenna is integrated on the control circuit board assembly, the active antenna and the passive antenna are integrated on the shark fin floor, and the control circuit board assembly, the shark fin antenna assembly and the radio frequency connecting assembly are integrated into a whole. Therefore, most of vehicle-mounted antennas required by the vehicle during information interaction can be integrated together, and the integration level of the vehicle-mounted antenna system is improved. In addition, the scheme can realize matching, filtering and amplification processing of various antennas in the limited size range of the control circuit board and the shark fin bottom board, and all radio frequency signals can be processed into bus signals through the control circuit and transmitted to other controllers of the automobile through radio frequency connection between the shark fin bottom board and the control circuit board, so that related interaction is realized. Furthermore, the scheme is that the upper outer shell and the sealing ring are arranged on the basis of the original shark fin assembly and the upper inner shell, so that the dustproof and waterproof effects of the system can be improved, and the connection between the system and the vehicle body is more reliable.
Drawings
Fig. 1 is a schematic circuit diagram of an automotive antenna system provided in this embodiment;
fig. 2 is a schematic diagram of an on-vehicle antenna system of an automobile according to the present embodiment;
fig. 3 is a schematic structural diagram of an automotive antenna system of an automobile according to the present embodiment;
fig. 4 is a schematic structural diagram of a ground component, a shark fin antenna assembly, and a control circuit board in the vehicle-mounted antenna system of the automobile according to the present embodiment;
fig. 5 is a schematic structural diagram of a seal ring and an upper housing in the vehicle-mounted antenna system of the automobile according to the present embodiment;
fig. 6 is a schematic structural diagram of a radio frequency connection assembly in the vehicle-mounted antenna system of the automobile according to the present embodiment;
fig. 7 is a schematic circuit diagram of a satellite positioning antenna in the vehicle-mounted antenna system of the automobile according to the present embodiment;
fig. 8 is a schematic circuit diagram of a remote control antenna in the vehicle-mounted antenna system of the automobile according to the present embodiment;
fig. 9 is a schematic circuit structure diagram of a radio antenna in the vehicle-mounted antenna system of the automobile provided in this embodiment.
Description of reference numerals:
1. a control circuit board assembly; 11. a control circuit board; 12. a signal processor; 13. a signal converter; 14. a short-range communication antenna in the vehicle; 15. a standby mobile communication antenna; 16. a first matching circuit; 2. a shark fin antenna assembly; 21. a shark fin base plate; 22. an active antenna; 23. a passive antenna; 24. a low noise amplification circuit; 25. a second matching circuit; 3. a radio frequency connection assembly; 4. a grounding member; 41. a ground stud; 5. a housing; 51. a bottom case; 52. an upper inner shell; 521. fixing screws on the upper inner shell; 53. an upper housing; 531. an upper housing fixing screw; 6. a roof sheet metal; 7. a roof reinforcing rib; 8. and (5) sealing rings.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In order to solve the wasting of resources, the higher scheduling problem of arrangement cost that causes with the antenna dispersion arrangement among the prior art, the embodiment of the utility model provides an on-vehicle antenna system of car. Specifically, referring to fig. 1, the vehicle-mounted antenna system of the automobile provided in the present embodiment includes a control circuit board assembly 1, a shark fin antenna assembly 2, and a radio frequency connection assembly 3. The control circuit board assembly 1, the shark fin antenna assembly 2 and the radio frequency connecting assembly 3 are integrated into a whole.
Next, the vehicle-mounted antenna system of the automobile according to the present embodiment will be described in detail with reference to fig. 1 to 9.
Referring to fig. 1, the control circuit board assembly 1 includes a control circuit board 11, a hardware processor and an internal antenna, the hardware processor is in communication connection with the internal antenna, and the hardware processor and the internal antenna are integrated on the same control circuit board 11.
Specifically, in the present embodiment, the hardware processor includes a signal processor 12 and a signal converter 13. Also, the signal processor 12 is communicatively connected to the signal converter 13.
The signal converter 13 includes a digital-to-analog converter and an analog-to-digital converter, and the digital-to-analog converter is communicatively connected to the analog-to-digital converter.
In the present embodiment, the communication connection method includes wired communication connection, for example, connection by a wire.
More specifically, the built-in antenna includes an in-vehicle short range communication antenna 14, a backup mobile communication antenna 15.
In this embodiment, the internal antenna is mainly used for data transmission in a vehicle or used as a backup antenna. Referring to fig. 2, the in-vehicle short-range communication antenna 14 may be a 4G mobile communication antenna, that is, a Long Term Evolution (LTE) transceiver antenna; the standby mobile communication antenna 15 may be a wireless communication antenna (WIFI) or a Bluetooth (BLE) antenna.
The short-range communication antenna 14 and the standby mobile communication antenna 15 are both connected to the signal processor 12 via the signal converter 13.
Specifically, the control circuit board assembly 1 is in communication connection with the vehicle communication system.
The vehicle communication system includes at least one of Ethernet (Ethernet), Controller Area Network (CAN), Universal Serial Bus (USB), wireless local Area Network (WiFi), and file distribution protocol (BT).
When connected to the control circuit board assembly 1, Ethernet (Ethernet), Controller Area Network (CAN), and Universal Serial Bus (USB) are connected by wire. The file delivery protocol (BT) performs communication in a wireless manner when connected to the control circuit board assembly 1.
It should be noted that first matching circuits (Match)16 are also connected between the in-vehicle short-range communication antenna 14, the standby mobile communication antenna 15, and the signal converter 13, respectively.
Further, the shark fin antenna assembly 2 includes a shark fin base plate 21, a plurality of active antennas 22, and a plurality of passive antennas 23, the shark fin base plate 21 being disposed opposite the control circuit board 11 and on a side of the control circuit board 11 where the built-in antennas are integrated. A plurality of active antennas 22 and a plurality of passive antennas 23 are fixed and integrated on the side of the shark fin base plate 21 remote from the control circuit board 11.
It should be explained that, the shark fin base plate 21 in the present embodiment is similar to the control circuit board 11, and a certain circuit structure is integrated thereon, so that certain functions of data transmission, interaction and the like can also be realized.
Specifically, the shark fin antenna assembly 2 further includes a Low Noise Amplifier (LNA) 24 and a second matching circuit (Match) 25.
Each active antenna 22 is connected to the rf link assembly 3 via a low noise amplifier circuit 24, and each passive antenna 23 is connected to the rf link assembly 3 via a second matching circuit 25.
It should be noted that, referring to fig. 2, the active antenna 22 includes a Satellite positioning antenna (GNSS), a Remote control antenna such as a Remote door lock antenna (RKE), a Passive Keyless Entry antenna (PKE), a Tire Pressure Monitoring System antenna (TPMS), and a radio antenna such as an amplitude modulation Antenna (AM), a frequency modulation antenna (FM), a Digital Audio Broadcasting antenna (DAB).
The passive antenna 23 includes a 4G mobile communication antenna, such as a primary LTE transceiving antenna, a secondary LTE transceiving antenna, a 5G mobile communication antenna, such as a 5G-1 transceiving antenna, a 5G-2 transceiving antenna, a vehicle-to-everything transceiving antenna, such as a V2X-1 transceiving antenna, a V2X-2 transceiving antenna, and an external Bluetooth local area network antenna, such as a wireless communication antenna (WIFI) or a Bluetooth Low Energy (BLE) antenna.
Note that, the hardware circuit configuration diagram of the active antenna 22 may refer to fig. 7 to 9.
A schematic circuit structure diagram of the satellite positioning antenna is shown in fig. 7, and includes an antenna, that is, a satellite positioning antenna, an electrostatic discharge (ESD) protection circuit, a matching circuit, a gain feedback circuit, a first-order amplification circuit, a filter circuit, a second-order amplification circuit, and a power supply terminal (Output/DC in). The connection manner is shown in fig. 7, and the description of this embodiment is omitted.
A schematic circuit configuration diagram of the remote control antenna is shown in fig. 8, and includes an antenna, a matching circuit and an amplifying circuit connected in series with the antenna, and a reception/Input terminal (Input/Output).
The schematic circuit structure of the radio antenna is shown in fig. 9, and includes an antenna, an electrostatic discharge protection circuit connected to the antenna and grounded, a low-pass filter circuit, a band-pass filter circuit, a high-pass filter circuit connected in parallel, an amplifier connected to the low-pass filter circuit, the band-pass filter circuit, and the high-pass filter circuit, a gain feedback circuit, and a power supply terminal (Output/DC in).
Further, the rf connection assembly 3 includes at least two rf coaxial connectors.
Specifically, the radio frequency connection component 3 is connected with each active antenna 22 and each passive antenna 23 via the shark fin bottom plate 21, and connects each active antenna 22 and each passive antenna 23 to the hardware processor.
The low-noise amplifier circuits 24 corresponding to the active antennas 22 and the second matching circuits 25 corresponding to the passive antennas 23 are connected to different pins of the rf coaxial connector.
More specifically, referring to fig. 1, the present embodiment schematically shows that ten antennas of the shark fin antenna assembly 2 need to be connected to the signal converter 13 of the control circuit board assembly 1 via radio frequency coaxial connectors. In the present embodiment, two six-pin rf coaxial connectors are selected, and refer to fig. 6. Each antenna is connected to the signal converter 13 via one of the pins of the radio frequency coaxial connector. When ten antennas need to be connected, ten pins of the radio frequency coaxial connector are used, and two pins of the two radio frequency coaxial connectors are not used. Those skilled in the art can select the number of the rf coaxial connectors and the number of the pins of the rf coaxial connectors according to actual requirements, which is not limited in this embodiment.
It should be noted that the size of the rf coaxial connector may be determined according to the thickness of the roof sheet metal 6 and the roof reinforcing rib 7 of the automobile, which is not limited in this embodiment.
Preferably, referring to fig. 3 and 4, the present embodiment provides an on-vehicle antenna system for an automobile, further including a ground component 4. The ground part 4 is fixedly attached to the shark fin base plate 21 on the side facing the control circuit board 11.
Specifically, the ground member 4 is elongated and arranged in a direction parallel to the shark fin bottom plate 21, and extends out of the shark fin bottom plate 21 and the control circuit board assembly 1.
A space is formed between the grounding part 4 and the control circuit board 11; the radio frequency connection assembly 3 is disposed in the space and penetrates the ground member 4.
The grounding member 4 may be specifically a grounding copper bar, which protrudes from both sides of the control circuit board 11. And, be provided with the screw hole on the ground connection copper bar, can fix with the automobile body through the bolt.
The grounding copper strip is arranged between the shark fin bottom plate 21 and the control circuit board 11, so that the requirement of antenna grounding can be met, and meanwhile, the performance of a built-in antenna arranged on the control circuit board 11 cannot be influenced.
Preferably, referring to fig. 3, the vehicle-mounted antenna system of the automobile provided in the present embodiment further includes a housing 5, where the housing 5 includes a bottom shell 51, an upper inner shell 52, and an upper outer shell 53.
Specifically, the bottom case 51 is provided on the side of the ground part 4 away from the shark fin antenna assembly 2, and includes a recessed portion and bottom case extensions provided at both ends of the recessed portion. The control circuit board assembly 1 is arranged in the concave part and is fixedly connected with the concave part. The bottom shell extension is in contact with the portion of the ground member 4 extending out of the control circuit board 11.
The bottom shell extension part is contacted with the part of the grounding part 4 extending out of the control circuit board 11, so that the grounding copper strip and the shell 5 can be effectively fixed, and abnormal sound caused by vibration can be avoided.
The upper inner shell 52 is disposed on a side of the ground component 4 away from the control circuit board 11, and includes a receiving portion and inner shell extending portions disposed at two ends of the receiving portion; the receptacle is housed outside the shark fin antenna assembly 2, with the inner shell extension in contact with the portion of the ground component 4 extending out of the shark fin base plate 21.
The upper outer shell 53 is umbrella-shaped and is sleeved outside the upper inner shell 52.
The upper outer shell 53 is fixedly connected to the roof sheet metal 6 of the automobile, and both the upper inner shell 52 and the bottom shell 51 are fixedly connected to the roof reinforcing rib 7 of the automobile.
It should be explained that, in the present embodiment, the upper outer shell 53, the upper inner shell 52 of the upper outer shell 53, and the bottom shell 51 are connected to the vehicle body by bolts.
Specifically, referring to fig. 3, in the present embodiment, the inner shell extension and the portion of the grounding member 4 extending out of the shark fin base plate 21 are fixedly connected via an upper inner shell fixing screw 521, so that the upper inner shell 52 is fixedly connected to the grounding member 4.
Preferably, referring to fig. 5, the vehicle-mounted antenna system of the automobile provided by the present embodiment further includes a sealing ring 8, and the sealing ring 8 is disposed between the upper housing 53 and the roof sheet metal 6 and is disposed along the entire edge of the upper housing 53.
The seal ring 8 is fixedly connected to the roof metal plate 6 of the automobile in a sealing manner. Referring to fig. 3, the seal ring 8, the upper inner case 52, the upper outer case 53, and the ground part 4, the control circuit board 11, and the bottom case 51 are all fixed together via a set of upper case fixing screws 531. The position where the bottom case 51 and the ground member 4 are in contact is connected to the roof stiffener 7 through the ground stud 41.
Specifically, in the present embodiment, the material of the seal ring 8 is rubber. The gasket 8 is disposed on the entire edge of the upper outer case 53, and extends toward the middle of the upper outer case 53 until reaching the upper inner case 52.
By adopting the scheme, the built-in antenna is integrated on the control circuit board assembly, the active antenna and the passive antenna are integrated on the shark fin floor, and the control circuit board assembly, the shark fin antenna assembly and the radio frequency connecting assembly are integrated into a whole. Therefore, most of vehicle-mounted antennas required by the vehicle during information interaction can be integrated, the integration level of a vehicle-mounted antenna system is improved, and the problems of resource waste, high arrangement cost and the like caused by scattered arrangement of the antennas in the prior art are solved. In addition, the scheme can realize matching, filtering and amplification processing of various antennas in the limited size range of the control circuit board and the shark fin bottom board, and all radio frequency signals can be processed into bus signals through the control circuit and transmitted to other controllers of the automobile through radio frequency connection between the shark fin bottom board and the control circuit board, so that related interaction is realized. Furthermore, the scheme is that the upper outer shell and the sealing ring are arranged on the basis of the original shark fin assembly and the upper inner shell, so that the dustproof and waterproof effects of the system can be improved, and the connection between the system and the vehicle body is more reliable.
Based on the vehicle-mounted antenna system of the automobile, the embodiment further provides an automobile comprising the vehicle-mounted antenna system of the automobile as described in the above embodiment.
Further, the roof of the automobile is provided with a mounting part so that the shark fin antenna assembly 2 in the vehicle-mounted antenna system of the automobile penetrates through the roof of the automobile, and the control circuit board assembly 1 is arranged inside the automobile.
In this embodiment, referring to fig. 3, the sequence of installing the vehicle-mounted antenna system on the vehicle is specifically as follows:
first, the grounding member 4, i.e., the grounding copper bar is fixed to the shark fin base plate 21 by screws.
Thereafter, the shark fin base plate 21 is connected to the control circuit board 11 by a radio frequency coaxial connector.
Next, the control circuit board 11 is fixed on the bottom case 51.
Thereafter, the shark fin antenna assembly 2 without the upper housing 53 is passed from the inside of the vehicle to the outside of the vehicle through the mounting portion, and the inside of the vehicle is fixed to the vehicle body and grounded by the ground bolt.
Finally, the upper housing 53 of the roof is mounted and fixed by screws from the inside of the vehicle. When the outer shell 53 is mounted, the seal ring 8 is also required. The seal ring 8 and the upper case 53 may have screws at least partially penetrating the control circuit board 11 when fixed to the vehicle body, such as screws located on the right and left sides of the shark fin antenna assembly 2 shown in fig. 5.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. An on-board antenna system for an automobile, comprising:
the control circuit board assembly comprises a control circuit board, a hardware processor and a built-in antenna, wherein the hardware processor is in communication connection with the built-in antenna, and the hardware processor and the built-in antenna are integrated on the same control circuit board;
a shark fin antenna assembly comprising a shark fin base plate, a plurality of active antennas and a plurality of passive antennas, the shark fin base plate being disposed opposite the control circuit board and located on a side of the control circuit board where the built-in antennas are integrated, the plurality of active antennas and the plurality of passive antennas being fixed and integrated on a side of the shark fin base plate away from the control circuit board;
a radio frequency connection assembly connected with each of the active antennas and each of the passive antennas via the shark fin baseplate and connecting each of the active antennas and each of the passive antennas to the hardware processor;
the control circuit board assembly, the shark fin antenna assembly, and the radio frequency connection assembly are integrated.
2. The vehicular antenna system of claim 1, further comprising a ground member; the grounding part is fixedly connected to one side of the shark fin bottom plate facing the control circuit board; and is
The grounding component is in a strip shape, is arranged in a direction parallel to the shark fin bottom plate, and extends out of the shark fin bottom plate and the control circuit board assembly; and is
A space is formed between the grounding component and the control circuit board; the radio frequency connecting assembly is arranged in the space and penetrates through the grounding component.
3. The vehicle antenna system of claim 2, further comprising a housing comprising a bottom shell, an upper inner shell, an upper outer shell, and
the bottom shell is arranged on one side, far away from the shark fin antenna assembly, of the grounding component and comprises a concave part and bottom shell extension parts arranged at two ends of the concave part; the control circuit board assembly is arranged in the concave part and is fixedly connected with the concave part; the bottom shell extension part is in contact with the part of the grounding part extending out of the control circuit board;
the upper inner shell is arranged on one side of the grounding part far away from the control circuit board and comprises an accommodating part and inner shell extending parts arranged at two ends of the accommodating part; the receptacle is housed outside the shark fin antenna assembly, the inner shell extension being in contact with a portion of the ground component extending out of the shark fin base plate;
the upper outer shell is umbrella-shaped and is sleeved outside the upper inner shell; and is
The upper shell is fixedly connected with a roof sheet metal of the automobile;
the upper inner shell and the bottom shell are fixedly connected with a roof reinforcing rib of the automobile.
4. The vehicle antenna system of claim 3, further comprising a gasket disposed between the upper housing and the roof panel and along an entire edge of the upper housing; and is
The sealing ring is sealed and fixedly connected with a roof metal plate of the automobile.
5. The vehicle antenna system of any of claims 1-4, wherein the control circuit board assembly is communicatively coupled to a vehicle communication system; and is
The hardware processor comprises a signal processor and a signal converter; wherein
The signal processor is in communication connection with the signal converter; and is
The built-in antenna comprises an in-vehicle short-distance communication antenna and a standby mobile communication antenna; wherein
The short-distance communication antenna in the vehicle and the standby mobile communication antenna are in communication connection with the signal processor through the signal converter.
6. The vehicular antenna system according to claim 5, wherein first matching circuits are connected between the vehicular short-range communication antenna, the standby mobile communication antenna and the signal converter, respectively; and is
The signal converter comprises a digital-to-analog converter and an analog-to-digital converter, and the digital-to-analog converter is in communication connection with the analog-to-digital converter;
the whole vehicle communication system comprises at least one of an Ethernet, a controller local area network, a universal serial bus, a wireless local area network and a file distribution protocol.
7. The vehicular antenna system of any of claims 1-4, wherein the shark fin antenna assembly further comprises a low noise amplification circuit and a second matching circuit; and is
Each active antenna is connected with the radio frequency connecting component through a low-noise amplifying circuit;
each of the passive antennas is connected to the radio frequency connection assembly via a second matching circuit.
8. The vehicle antenna system of claim 7, wherein the active antenna comprises a satellite positioning antenna, a remote control antenna, a radio antenna; and is
The passive antenna comprises a 4G mobile communication antenna, a 5G mobile communication antenna, a vehicle-to-everything transceiving antenna and an external Bluetooth local area network antenna.
9. The vehicle antenna system of claim 7, wherein the radio frequency connection assembly comprises at least two radio frequency coaxial connectors; and is
And the low-noise amplifying circuits corresponding to the active antennas and the second matching circuits corresponding to the passive antennas are respectively connected with different pins of the radio frequency coaxial connector.
10. A motor vehicle, characterized in that it comprises a vehicle-mounted antenna system of a motor vehicle according to any one of claims 1-9, and
the shark fin antenna assembly is arranged on the vehicle-mounted antenna system of the automobile, and the shark fin antenna assembly is arranged on the vehicle-mounted antenna system of the automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120766851.2U CN214957330U (en) | 2021-04-15 | 2021-04-15 | Vehicle-mounted antenna system of automobile and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120766851.2U CN214957330U (en) | 2021-04-15 | 2021-04-15 | Vehicle-mounted antenna system of automobile and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214957330U true CN214957330U (en) | 2021-11-30 |
Family
ID=79045638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120766851.2U Active CN214957330U (en) | 2021-04-15 | 2021-04-15 | Vehicle-mounted antenna system of automobile and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214957330U (en) |
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2021
- 2021-04-15 CN CN202120766851.2U patent/CN214957330U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221222 Address after: Room 509, building 1, 563 Songtao Road, Pudong New Area, Shanghai, 201203 Patentee after: SAIC Motor Corp.,Ltd. Patentee after: Shanghai automotive industry (Group) Co.,Ltd. Address before: Room 509, building 1, 563 Songtao Road, Pudong New Area, Shanghai, 201203 Patentee before: SAIC Motor Corp.,Ltd. |
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| TR01 | Transfer of patent right |