CN211017378U

CN211017378U - Wireless communication device for vehicle

Info

Publication number: CN211017378U
Application number: CN201920569946.8U
Authority: CN
Inventors: 张清; 卢惠新; 陈华锋
Original assignee: Continental Automotive Changchun Co Ltd
Current assignee: Continental Automotive Changchun Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-07-14
Anticipated expiration: 2029-04-24

Abstract

A wireless communication device for a vehicle, comprising: a box body; the antenna housing is fixed on the box body; the antenna is arranged outside the box body and positioned in the antenna housing; the printed circuit board is arranged in the box body; the signal processing circuit is arranged on the printed circuit board; and the contact pin connecting component is used for connecting the antenna and the signal processing circuit. The utility model discloses a signal link between antenna and the processing circuit among the wireless communication device for vehicle has less loss.

Description

Wireless communication device for vehicle

Technical Field

The utility model relates to an on-vehicle electron device, in particular to automobile-used wireless communication device.

Background

Shark fin antenna is an antenna arrangement commonly adopted on the current vehicle. One or more antennas, such as a Remote Keyless Entry (RKE) antenna, a Global Navigation Satellite System (GNSS) antenna, a cellular mobile communication antenna, etc., are generally integrated into the shark fin antenna to implement different communication functions. However, the shark fin antenna only integrates the antenna, and the processing module is still arranged at other positions in the vehicle, so that a plurality of radio frequency coaxial cables are required to be used for connecting the plurality of antennas to the corresponding processing modules respectively. This results in higher cost and can result in link loss due to the need to use radio frequency coaxial cables to connect the antenna and processing module.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem provide an automobile-used wireless communication device, the signal link between antenna wherein and the processing circuit has less loss.

In order to solve the above problem, the utility model provides an automobile-used wireless communication device, it includes: a box body; the antenna housing is fixed on the box body; the antenna is arranged outside the box body and is positioned in the antenna housing; the printed circuit board is arranged in the box body; the signal processing circuit is arranged on the printed circuit board; and the contact pin connecting component is used for connecting the antenna and the signal processing circuit.

Compared with the prior art, the scheme has the following advantages:

the utility model discloses an automobile-used wireless communication device uses contact pin coupling assembling directly to transmit antenna received radio signal to signal processing circuit, is similar to directly with antenna welding to printed circuit board, and whole link all is Printed Circuit Board Assembly (PCBA) inside and walks the line, need not extra radio frequency line, has avoided the loss of the inside self of radio frequency line connector and radio frequency line, has realized the signal link of low noise figure and low transmission loss.

Drawings

Fig. 1 illustrates a three-dimensional schematic view of a wireless communication device for a vehicle according to one or more embodiments of the present invention;

fig. 2 illustrates a cross-sectional view along a-a of a wireless communication device for a vehicle in accordance with one or more embodiments of the present invention;

fig. 3 illustrates an enlarged schematic view of region B in fig. 2 in accordance with one or more embodiments of the present disclosure;

fig. 4 illustrates a schematic diagram of a wireless communication device for a vehicle in accordance with one or more embodiments of the present invention;

fig. 5 illustrates a cross-sectional view of a pin connector in accordance with one or more embodiments of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it is to be understood that the invention is not to be limited to the specific embodiments described. Rather, any combination of the following features and elements, whether related to different embodiments or not, is contemplated to implement the present invention. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly recited in a claim.

Fig. 1 illustrates a three-dimensional schematic diagram of a wireless communication device for a vehicle according to one or more embodiments of the present invention. Fig. 2 illustrates a cross-sectional view along a-a of a wireless communication device for a vehicle according to one or more embodiments of the present invention. Fig. 3 illustrates an enlarged schematic view of region B in fig. 2 in accordance with one or more embodiments of the present disclosure. Fig. 4 illustrates a schematic diagram of a wireless communication device for a vehicle according to one or more embodiments of the present invention. Referring collectively to fig. 1-4, the vehicular wireless communication apparatus 100 includes a case 101, a radome 102, an antenna 103, a printed circuit board 104, a signal processing circuit 105, and a pin connection assembly 106.

The box 101 is used to house one or more circuits, such as one or more of power supply circuitry, baseband processing circuitry, radio frequency circuitry, and the like. These circuits may be disposed on the same printed circuit board, or may be disposed on different printed circuit boards. In one or more embodiments, the case 101 is primarily composed of a metal base 101a and a housing 101 b. The housing 101b may be fixed to the metal base 101a by a snap, a screw, or the like. When the vehicular wireless communication apparatus 100 is mounted on a vehicle, most of the case 101 is positioned below the roof panel 10, and the metal chassis 101a faces the roof panel 10. In the embodiment shown in fig. 1, except for the projection 101a1, the other parts of the box 101 are located below the roof panel 10.

The radome 102 is fixed to the case 101 and accommodates an antenna 103. When the vehicular wireless communication apparatus 100 is mounted on a vehicle, a region of the antenna cover 102 for accommodating an antenna is exposed to the roof panel 10. That is, when the vehicular wireless communication apparatus 100 is mounted on a vehicle, the antenna 103 is not shielded by the roof metal plate 10. In one or more embodiments, the radome 102 is secured to a metal base 101 a. In one or more embodiments, the radome 102 may be shark finned, forming a shark fin-like antenna similar to a conventional shark fin antenna. In one or more embodiments, a shark fin enclosure may be provided outside radome 102, thereby forming a shark fin antenna similar to a conventional shark fin antenna.

The antenna 103 is disposed outside the case 101 and inside the radome 102. In one or more embodiments, the antenna 103 is located outside the metal base 101a and inside the radome 102. In one or more embodiments, the antenna 103 includes a GNSS antenna, such as one or more of a GPS antenna, a beidou antenna, a galileo antenna, and a glonass antenna. In one or more embodiments, the GNSS antenna is a ceramic patch antenna.

When the vehicular wireless communication device 100 is mounted on a vehicle, the antenna 103 is exposed to the vehicle metal plate 10 and is not shielded by the vehicle metal plate 10, so that the vehicular wireless communication device has good wireless signal receiving performance.

A printed circuit board 104 is disposed within the casing 101 for arranging one or more circuits, such as one or more of power supply circuitry, baseband processing circuitry, radio frequency circuitry, and the like.

The signal processing circuit 105 is disposed on the printed circuit board 104, and is configured to process the wireless signal received by the antenna 103. In one or more embodiments, the signal processing circuit 105 includes a low noise amplification circuit 105a and a baseband processing circuit 105 b. The low noise amplification circuit 105a may be used to amplify a signal received by the antenna 103. The baseband processing circuit 105b may be configured to perform demodulation processing on the signal amplified by the low-noise amplification circuit 105 a.

The pin connecting assembly 106 is used for connecting the antenna 103 and the signal processing circuit 105, so as to transmit the wireless signal received by the antenna 103 to the signal processing circuit 105. Since the vehicular wireless communication apparatus 100 directly transmits the wireless signal received by the antenna 103 to the signal processing circuit 105 by using the pin connection assembly 106, similarly to directly soldering the antenna 103 to the printed circuit board 104, the whole link is wired inside the Printed Circuit Board Assembly (PCBA), and no additional radio frequency wire is needed, thereby avoiding the loss of the radio frequency wire connector and the loss of the radio frequency wire inside, and realizing a signal link with low noise coefficient and low transmission loss. In one experiment, the link using the pin connection assembly 106 connection approach reduced loss by at least 0.3dB over the conventional coaxial cable connection approach.

In one or more embodiments, the pin connection assembly 106 includes a pin 106a and a pin connector 106 b. The signal processing circuit 105 acquires the wireless signal received by the antenna 103 through the pin connector 106 b. One end of the pin 106a is connected to the antenna 103, and the other end is connected to the pin connector 106 b. In one or more embodiments, the end of pin 106a that connects to antenna 103 is hollow. The feed line of the antenna 103 may be inserted into the hollow portion of the pin 106 a. In one or more embodiments, the diameter of the pin 106a at the end that connects to the pin connector 106b is smaller than the diameter at the other end to facilitate insertion of the pin 106a into the pin connector 106 b. In one or more embodiments, the pin connector 106b is disposed on the printed circuit board 104 by soldering. Fig. 5 illustrates a cross-sectional view of a pin connector in accordance with one or more embodiments of the present invention. Referring to fig. 5, the pin connector 106b includes a housing 106b1 having an interior cavity and a plurality of tabs 106b2 positioned in the interior cavity and connected to the housing 106b 1. One end of the case 106b1 has a boss 106b1 a. The bosses 106b1a are used to prevent the entire pin connector 106b from passing through the through-holes when the pin connector 106b is inserted into the through-holes of the printed circuit board 104, to fix the pin connector 106b to the printed circuit board 104 when the pin connector 106b is not soldered to the printed circuit board 104. The plurality of tabs 106b2 are retracted inwardly in a direction away from the bosses 106b1a to achieve good contact when the pin 106a is inserted into the pin connector 106 b. In one or more embodiments, the pin connector 106b may include six tabs 106b2, and the six tabs 106b2 may be evenly disposed within the interior cavity of the housing 106b 1.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. Various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is to be determined by the appended claims.

Claims

1. A wireless communication device for a vehicle, comprising:

a box body;

the antenna housing is fixed on the box body;

the antenna is arranged outside the box body and is positioned in the antenna housing;

the printed circuit board is arranged in the box body;

the signal processing circuit is arranged on the printed circuit board; and

the contact pin connecting component is used for connecting the antenna and the signal processing circuit;

wherein, the whole signal link between the antenna and the signal processing circuit is a wiring on the printed circuit board;

wherein the signal processing circuit comprises: the low-noise amplifying circuit is used for amplifying the signals received by the antenna; and a baseband processing circuit for demodulating the signal amplified by the low-noise amplifying circuit.

2. The vehicular wireless communication apparatus according to claim 1, wherein the pin connecting assembly comprises:

a pin connector disposed on the printed circuit board; and

and one end of the contact pin is connected with the antenna, and the other end of the contact pin is connected with the contact pin connector.

3. The wireless communication device for vehicle according to claim 2, wherein the pin connector includes a housing having an inner cavity and a plurality of connection pieces located in the inner cavity and connected to the housing, the housing having a boss at one end, the plurality of connection pieces being inwardly contracted in a direction away from the boss.

4. The vehicular wireless communication apparatus according to claim 2, wherein the pin connector is provided on the printed circuit board by soldering.

5. The vehicular wireless communication apparatus according to claim 2, wherein an end of the pin connected to the antenna is hollow.

6. The wireless communication device for vehicle according to claim 2, wherein a diameter of one end of the pin connected to the pin connector is smaller than a diameter of the other end.

7. The vehicular wireless communication apparatus according to claim 1, wherein the case is mainly composed of a metal base and a housing, the radome is fixed to the metal base, and the antenna is disposed outside the metal base and inside the radome.

8. The vehicular wireless communication apparatus according to claim 1, wherein the antenna comprises a GNSS antenna, and the signal processing circuit comprises a GNSS receiver circuit.

9. The wireless communication device for vehicle according to claim 8, wherein the GNSS antenna is a ceramic patch antenna.