CN215989203U - Vehicle-mounted overhead antenna - Google Patents
Vehicle-mounted overhead antenna Download PDFInfo
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- CN215989203U CN215989203U CN202122170778.5U CN202122170778U CN215989203U CN 215989203 U CN215989203 U CN 215989203U CN 202122170778 U CN202122170778 U CN 202122170778U CN 215989203 U CN215989203 U CN 215989203U
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Abstract
The utility model provides a vehicle-mounted overhead antenna, comprising: the shell and the bottom plate are mutually connected to form a cavity; the printed circuit board is arranged in the cavity and arranged on the bottom plate; the printed circuit board is integrated with a GNSS antenna and a 4G antenna; the mounting nut can fixedly mount the vehicle-mounted overhead antenna outside the truck body through the mounting hole of the truck body. Compared with the built-in antenna, the built-in antenna has the advantages that the antenna is arranged on the roof, the electronic equipment around the roof is fewer, the risk of interference by other electronic equipment is reduced, the received signal is stronger and more stable, and the problem that the built-in antenna signal of the light truck and the medium truck is easily interfered is solved.
Description
Technical Field
The utility model belongs to the technical field of automobile antennas, and particularly relates to a vehicle-mounted overhead antenna.
Background
With the increasing progress of information technology, navigation systems, communication systems, multimedia systems, and the like of electronic devices are developed toward miniaturization and intellectualization. As for the navigation system, it has been changed from the single GPS era to the new multi-constellation compatible GNSS (global navigation satellite system) era, promoting the globalization and enhanced multi-modeling of the satellite navigation system.
The function of a built-in antenna in a mainstream card slot in the current market is 4G + navigation (GNSS), and signal receiving is realized through an antenna oscillator and a dielectric antenna. However, the GNSS signal reception is often affected by the surrounding environment, and the signal reception is unstable. In order to solve the problem that the built-in antenna signals of the light truck and the medium truck are easily interfered, a top-mounted antenna needs to be developed urgently, and the requirement for stable receiving of 4G signals and GNSS signals can be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a vehicle-mounted overhead antenna, which can receive GNSS signals and transmit and receive 4G signals, and is mounted on a vehicle roof to meet the requirement of stable reception of the 4G signals and the GNSS signals in order to reduce the influence of the surrounding environment on the GNSS signals.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
a vehicle overhead antenna comprising:
the shell and the bottom plate are mutually connected to form a cavity;
a printed circuit board disposed within the cavity and on the bottom plate;
the printed circuit board is integrated with a GNSS antenna and a 4G antenna;
and the mounting nut can fixedly mount the vehicle-mounted overhead antenna outside the truck body through the mounting hole of the truck body.
Preferably, the mounting hole is provided in a roof of the truck.
Preferably, the device further comprises a pre-installation clamping piece, clamping tongues are arranged on two sides of the pre-installation clamping piece, and the pre-installation clamping piece is clamped on the installation hole.
Preferably, still include waterproof cushion, waterproof cushion cover establishes on the bottom plate, and cover the bottom of bottom plate and the shell with the seam between the bottom plate.
Preferably, the waterproof gasket is tightly embedded with the mounting hole.
Preferably, the printed circuit board further integrates a low-noise amplification circuit of the GNSS antenna.
Preferably, the 4G antenna is a dipole antenna.
Preferably, the 4G antenna is a dual-path 4G antenna.
Preferably, the GNSS antenna is a ceramic antenna.
Preferably, the cable further comprises a cable, and one end of the cable is connected with the printed circuit board.
The technical scheme of the utility model has the beneficial effects that:
compared with a built-in antenna, the antenna is arranged on the roof, and the number of electronic devices around the roof is small, so that the risk of interference by other electronic devices is reduced, the received signals are stronger and more stable, and the problem that the built-in antenna signals of a light truck and a medium truck are easily interfered is solved; and through the waterproof construction that designs the matching, can appear leaking the phenomenon of rain and water when avoiding this antenna to install at the roof, guaranteed the stability of this antenna.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 is an exploded view of a shark fin antenna according to an embodiment of the utility model.
Description of reference numerals:
1. a housing; 2. a printed wiring board; 3. a base plate; 4. a waterproof rubber mat; 5. a self-tapping screw; 6. pre-installing a clamping piece; 7. a GNSS antenna; 8. a waterproof gasket; 9. mounting a nut; 10. a screw.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
Referring to fig. 1, a vehicle roof-top antenna includes:
the device comprises a shell 1 and a bottom plate 3, wherein the shell 1 and the bottom plate 3 are mutually connected to form a cavity;
the printed circuit board 2 is arranged in the cavity and arranged on the bottom plate 3;
the printed circuit board 2 is integrated with a GNSS antenna 7 and a 4G antenna;
and a mounting nut 9, wherein the mounting nut 9 can fixedly mount the vehicle-mounted overhead antenna on the outside of the truck body through a mounting hole of the truck body.
In a preferred example, the mounting hole is provided in a roof of a truck.
Specifically, the shell 1 and the bottom plate 3 of the vehicle-mounted overhead antenna are connected with each other to form an accommodating cavity, the printed circuit board 2 is fixedly installed on the bottom plate 3 in the cavity, the oscillator of the 4G antenna and the circuit of the GNSS antenna 7 are printed on the printed circuit board 2, and an electronic part, a dielectric antenna and a shielding case are welded on the printed circuit board. The antenna can receive GNSS signals and transmit and receive 4G signals, wherein the GNSS signals are received through the GNSS antenna 7 and are transmitted to a host through a coaxial cable after being processed by a low-noise discharge circuit of the printed circuit board 2. The 4G signal is received and transmitted through a 4G antenna, and is communicated with a host machine through a coaxial cable for signal transmission. In order to reduce the influence of the surrounding environment on the GNSS signal, the antenna can be installed on the roof of the vehicle through the mounting nut 9 and the screw 10 in a threaded manner, and a matched waterproof structure is installed. Compared with a built-in antenna, the antenna is arranged outside a vehicle body, received signals are stronger and more stable, electronic equipment around the position of the vehicle roof is fewer, and the risk of interference of other electronic equipment is reduced.
Preferably, this on-vehicle overhead antenna passes through the mounting hole and sets up at the truck roof, and the practicality is strong, convenient dismantlement.
Preferably, the GNSS navigation antenna assembly includes a GPS navigation unit (GPS), a beidou navigation unit (BD) and a GLONASS navigation unit (GLONASS), so that the vehicle-mounted overhead antenna has rich functions, high integration level and wider application range.
A preferable example further comprises a pre-installation clamping piece 6, clamping tongues are arranged on two sides of the pre-installation clamping piece 6, and the pre-installation clamping piece 6 is clamped on the installation hole.
Specifically, when the vehicle-mounted top-mounted antenna is mounted on the roof, the screw rod 10 and the pre-mounting clamping piece 6 can penetrate through an opening of the roof of the truck, the pre-mounting clamping piece 6 is opened and can be clamped at a mounting hole of the roof through the clamping tongue, and before the mounting nut 9 is not screwed down, the accuracy of the mounting position of the antenna can be guaranteed, the antenna cannot shift or rotate, and the antenna is convenient to mount.
A preferable example further comprises a waterproof rubber mat 4, wherein the waterproof rubber mat 4 is sleeved on the bottom plate 3 and covers the bottom of the bottom plate 3 and the seam between the shell 1 and the bottom plate 3.
A preferred example further includes a waterproof gasket 8, and the waterproof gasket 8 is tightly fitted to the mounting hole.
Specifically, this waterproof cushion 4 covers the bottom of bottom plate 3 to cover the seam between vehicle-mounted overhead antenna shell 1 and the bottom plate 3 simultaneously and in order to play waterproof effect, guarantee the leakproofness of this antenna and roof when can making vehicle-mounted overhead antenna unit mount to the roof, avoid the short circuit risk that rainwater caused, the life of equipment has been improved, and this waterproof cushion 4 sets up corresponding through-hole and is used for mounting nut 9, and wear out through-hole and external equipment interconnect with the cable that printed wiring board 2 is connected.
In addition, waterproof construction still includes waterproof gasket 8, and waterproof gasket 8 is O shape rubber packing ring, and the gomphosis can play further waterproof effect around the mounting hole.
Specifically, the shell 1 is made of plastic by adopting an injection molding process; the bottom plate 3 is made of metal and is manufactured by a die-casting process; the waterproof rubber cushion 4 is made of rubber and is manufactured by adopting a vulcanization process. The printed circuit board 2 is screwed on the bottom plate 3, and the shark fin shell 1, the bottom plate 3 and the waterproof rubber mat 4 are fixed through a plurality of self-tapping screws 5.
In a preferred example, the printed wiring board 2 is also integrated with a low noise amplification circuit of the GNSS antenna 7.
Specifically, the printed circuit board 2 is provided with a low noise amplifier and a filter, and the GNSS signal is filtered through the low noise amplifier and the filter through signal processing procedures such as amplification, filtering and the like, and finally an effective signal is output, so that the GNSS satellite navigation antenna realizes good signal receiving capability.
In a preferred example, the 4G antenna is a dipole antenna.
In a preferred example, the 4G antenna is a dual 4G antenna.
Specifically, the 4G signal is received and transmitted through the dipole antenna, and the dipole antenna is manufactured on the printed circuit board 2 through a copper-clad process, so that the backflow area of the signal line can be effectively reduced, and the electromagnetic interference of the signal to the outside is reduced.
In a preferred example, the GNSS antenna 7 is a ceramic antenna.
Specifically, the GNSS antenna 7 is a ceramic antenna, and preferably, a double-fed ceramic antenna is adopted for the ceramic antenna to receive GNSS signals, and the double-fed ceramic antenna has a wider bandwidth, so that the design and application requirements of the GNSS space line width frequency band can be better met. In addition, a shielding cover can be additionally arranged on the GNSS antenna 7 for shielding external clutter signals and improving the isolation between the GNSS antenna 7 and the 4G antenna.
A preferred example further includes a cable, one end of which is connected to the printed wiring board 2.
Specifically, one end of the cable is connected with the printed circuit board 2, the other end of the cable is provided with a connector, the connector is conveniently connected with a host computer on an automobile, and GNSS signals and 4G signals are communicated with the host computer for signal transmission.
Further, the cable is a coaxial cable.
Examples
The present embodiment provides a vehicle-mounted overhead antenna, including:
the device comprises a shell 1 and a bottom plate 3, wherein the shell 1 and the bottom plate 3 are mutually connected to form a cavity;
the printed circuit board 2 is integrated with a GNSS antenna 7, a 4G antenna and a low-noise amplifying circuit of the GNSS antenna 7, and the printed circuit board 2 is arranged in the cavity and arranged on the bottom plate 3;
the printed circuit board 2 is provided with a navigation antenna module, the navigation antenna module comprises a GNSS antenna 7, the GNSS antenna 7 is a ceramic antenna, and the 4G antenna is a dipole antenna;
the 4G antenna is a double-path 4G antenna;
the navigation antenna module comprises a GPS navigation unit, a Beidou navigation unit and a Glonass navigation unit;
the mounting nut 9 can fixedly mount the vehicle-mounted overhead antenna on the roof of the truck through a mounting hole of the truck body of the mounting nut 9;
the device also comprises a pre-installation clamping piece 6, clamping tongues are arranged on two sides of the pre-installation clamping piece 6, and the pre-installation clamping piece 6 is clamped on the installation hole;
the waterproof structure comprises a waterproof rubber mat 4, the waterproof rubber mat 4 is fixedly connected with the bottom plate 3 in a threaded manner and covers the bottom of the bottom plate 3 and a joint between the shell 1 and the bottom plate 3, and a waterproof gasket 8, wherein the waterproof gasket 8 is tightly embedded with the mounting hole;
and the cable is also included, and one end of the cable is connected with the printed circuit board 2.
In summary, the vehicle-mounted set-top antenna provided by the utility model can receive GNSS signals and transmit and receive 4G signals. The GNSS signal is received by the GNSS antenna 7, processed by the low noise discharge circuit of the printed circuit board 2, and transmitted to the host computer through the coaxial cable. The 4G signal is received and transmitted by an even 4G antenna and is communicated with a host computer for signal transmission by a coaxial cable. In order to reduce the influence of the surrounding environment on the GNSS signals, the antenna is installed on the roof of the vehicle, and a matched waterproof structure is designed. Compared with a built-in antenna, the antenna is arranged outside a vehicle body, received signals are stronger and more stable, electronic equipment around the position of the vehicle roof is fewer, and the risk of interference of other electronic equipment is reduced. The problem that built-in antenna signals of light trucks and medium trucks are easily interfered can be effectively solved.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A vehicle overhead antenna, comprising:
the shell and the bottom plate are mutually connected to form a cavity;
a printed circuit board disposed within the cavity and on the bottom plate;
the printed circuit board is integrated with a GNSS antenna and a 4G antenna;
and the mounting nut can fixedly mount the vehicle-mounted overhead antenna outside the truck body through the mounting hole of the truck body.
2. The vehicle overhead antenna of claim 1, wherein the mounting hole is provided in a roof of a truck.
3. The vehicle top-mounted antenna according to claim 1, further comprising a pre-mounting clip, wherein a latch is disposed on both sides of the pre-mounting clip, and the pre-mounting clip is latched to the mounting hole.
4. The vehicle overhead antenna of claim 1, further comprising a waterproof rubber mat disposed on the bottom panel and covering a bottom of the bottom panel and a seam between the housing and the bottom panel.
5. The vehicle overhead antenna of claim 1, further comprising a waterproof gasket that fits tightly into the mounting hole.
6. The vehicle overhead antenna of claim 1, wherein the printed wiring board further integrates a low noise amplification circuit of a GNSS antenna.
7. The vehicle overhead antenna of claim 1, wherein the 4G antenna is a dipole antenna.
8. The vehicle overhead antenna of claim 1, wherein the 4G antenna is a dual 4G antenna.
9. The vehicle overhead antenna of claim 1, wherein the GNSS antenna is a ceramic antenna.
10. The vehicle overhead antenna of claim 1, further comprising a cable having one end connected to the printed wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122170778.5U CN215989203U (en) | 2021-09-08 | 2021-09-08 | Vehicle-mounted overhead antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122170778.5U CN215989203U (en) | 2021-09-08 | 2021-09-08 | Vehicle-mounted overhead antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215989203U true CN215989203U (en) | 2022-03-08 |
Family
ID=80468665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122170778.5U Active CN215989203U (en) | 2021-09-08 | 2021-09-08 | Vehicle-mounted overhead antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215989203U (en) |
-
2021
- 2021-09-08 CN CN202122170778.5U patent/CN215989203U/en active Active
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