Vehicle-mounted 5G vehicle-mounted antenna box

Abstract

The utility model provides a vehicle-mounted 5G vehicle-mounted antenna box. The vehicle-mounted 5G vehicle-mounted antenna box comprises a shell, a mainboard, a first antenna support, a second antenna support, a third antenna support, a fourth antenna support, a first LMH antenna, a second LMH antenna, a third LMH antenna and a fourth LMH antenna, wherein the first LMH antenna, the second LMH antenna, the third LMH antenna and the fourth LMH antenna are respectively arranged on the corresponding surfaces of the first antenna support, the second antenna support, the third antenna support and the fourth antenna support by adopting a laser etching chemical plating process, and the four antenna supports are respectively arranged at four corners of the mainboard. According to the utility model, the LDS technology is adopted as an implementation form of the antenna, four LMH full-band 5G antennas adopting the LDS technology are arranged in the box, and the effects of wide antenna bandwidth and high gain are realized at the same time. The antenna provided by the utility model has the characteristics of full coverage of 5G frequency band, excellent antenna performance, simple antenna assembly, high stability, dust prevention and water prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a 5G vehicle-mounted antenna box. Background Art

[0002] At present, with the development of more and more intelligent cars and the increasing richness of in-car entertainment facilities, the stable and high-speed network connection performance of the on-board car machine has become particularly important. It is a basic requirement for the intelligence of cars and is closely related to the actual experience of consumer cars. Antennas are components for transmitting and receiving electromagnetic signals of on-board car machines. The performance of antennas is directly related to whether the on-board car machine can have a stable and high-speed network connection, and is also closely related to the actual experience of consumers.

[0003] Most of the in-vehicle antenna boxes currently used in the market have large antenna products, which take up a large amount of valuable space and are not conducive to the placement of other devices. Or the products use LMH*2+MH*2 antenna design, which has defects such as missing frequency bands and MIMO mode, resulting in network instability and limited connection speed in actual use.

[0004] In summary, the antenna design commonly used in vehicle-mounted antennas on the market may cause unstable connection and packet loss in remote areas with poor base station signal coverage or in environments with complex and harsh electromagnetic environments. At the same time, insufficient throughput may cause lag in scenarios with high-speed network requirements, which in turn affects the actual user experience.

[0005] Based on this problem, in the design of vehicle-mounted antenna boxes, there is an urgent need for miniaturized, high-performance, and full-band coverage 5G vehicle-mounted antenna boxes. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model designs a 5G vehicle-mounted antenna box for use in a vehicle.

[0007] The utility model is specifically implemented through the following technical solutions:

[0008] A 5G vehicle-mounted antenna box comprises a shell, a mainboard, a first antenna bracket, a second antenna bracket, a third antenna bracket, a fourth antenna bracket, a first LMH antenna, a second LMH antenna, a third LMH antenna, and a fourth LMH antenna; wherein the first LMH antenna, the second LMH antenna, the third LMH antenna, and the fourth LMH antenna are respectively placed on the corresponding surfaces of the first antenna bracket, the second antenna bracket, the third antenna bracket, and the fourth antenna bracket by laser engraving and chemical plating process, and the four antenna brackets are respectively placed at the four corners of the mainboard.

[0009] As a further improvement of the present invention, the antenna box further comprises a coaxial line and a coaxial line terminal head.

[0010] As a further improvement of the present invention, there are four coaxial lines, wherein the first coaxial line is electrically connected to the first LMH antenna, the second coaxial line is electrically connected to the second LMH antenna, the third coaxial line is electrically connected to the third LMH antenna, and the fourth coaxial line is electrically connected to the fourth LMH antenna.

[0011] As a further improvement of the present invention, the coaxial line terminal head 8 is electrically connected to the other end of the corresponding coaxial line 7, and the coaxial line terminal head 8 is used to connect to the signal receiving and transmitting end of the vehicle computer.

[0012] As a further improvement of the present invention, the first coaxial line and the second coaxial line are both routed from the front side of the mainboard, and the third coaxial line and the fourth coaxial line are both routed from the back side of the mainboard.

[0013] As a further improvement of the utility model, the frequency range covered by the antenna box is 600MHz~960MHz, 1710MHz~5000MHz.

[0014] As a further improvement of the present invention, the size of the shell is 125*125*20mm, and the size of the mainboard is 115*115*1mm.

[0015] As a further improvement of the present invention, the sizes of the first antenna bracket, the second antenna bracket and the third antenna bracket are 60*10*11 mm, and the size of the fourth antenna bracket is 50*10*11 mm.

[0016] The beneficial effects of the utility model are as follows: the 5G vehicle antenna box for the utility model adopts the LDS process as the implementation form of the antenna, and 4 LMH full-band 5G antennas using the LDS process are arranged in the box, and the antenna has a wide bandwidth and high gain. The utility model has the characteristics of full coverage of the 5G frequency band, excellent antenna performance, simple antenna assembly, high stability, and dust and water resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the appearance of the antenna box of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the antenna box of the utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of the antenna box of the utility model. Figure 2 ;

[0020] Figure 4 It is a voltage standing wave ratio curve diagram of the utility model antenna;

[0021] in,

[0022] 1: Shell;

[0023] 2: Mainboard;

[0024] 3: The first antenna bracket;

[0025] 4: Second antenna bracket;

[0026] 5: The third antenna bracket;

[0027] 6: Fourth antenna bracket;

[0028] 7: Coaxial cable;

[0029] 8: Coaxial cable terminal head. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The overall appearance of the 5G vehicle antenna box designed by the utility model for vehicle use is as follows Figure 1 As shown, the internal structure is as Figure 2-3 As shown, Figure 2 This is the internal structure of the antenna box as seen from the front of the motherboard. Figure 3 This is the internal structure of the antenna box as seen from the back of the motherboard.

[0032] In this embodiment, the 5G vehicle antenna box for vehicle includes a housing 1, a mainboard 2, a first antenna bracket 3, a second antenna bracket 4, a third antenna bracket 5, a fourth antenna bracket 6, a coaxial line 7 and a coaxial line terminal head 8. The first LMH antenna, the second LMH antenna, the third LMH antenna and the fourth LMH antenna are respectively placed on the corresponding surfaces of the first antenna bracket 3, the second antenna bracket 4, the third antenna bracket 5 and the fourth antenna bracket 6 by laser engraving and chemical plating process. The four antenna brackets are respectively placed at the four corners of the mainboard 2.

[0033] In this embodiment, there are four coaxial lines 7, among which the first coaxial line is electrically connected to the first LMH antenna, the second coaxial line is electrically connected to the second LMH antenna, the third coaxial line is electrically connected to the third LMH antenna, and the fourth coaxial line is electrically connected to the fourth LMH antenna. The first coaxial line and the second coaxial line are both routed from the front side of the mainboard, while the third coaxial line and the fourth coaxial line are both routed from the back side of the mainboard, so that the routing structure is more reasonable.

[0034] In this embodiment, the coaxial line terminal head 8 is electrically connected to the other end of the corresponding coaxial line 7 , and the coaxial line terminal head 8 is used to connect to the signal transceiver end of the vehicle computer.

[0035] In this embodiment, the antenna branches are placed on the antenna bracket using a laser engraving and chemical plating process. Modifying the routing of the antenna branches can change the antenna's resonant frequency, antenna bandwidth, etc. The first LMH antenna, the second LMH antenna, the third LMH antenna, and the fourth LMH antenna are all high-performance full-band 5G antennas, covering 600MHz to 960MHz and 1710MHz to 5000MHz. The test voltage standing wave, for example Figure 3 As shown, within the range of 620MHz to 960MHz and 1710MHz to 5GHz, the voltage standing wave ratio of the antenna is better than 4, which meets the actual application requirements.

[0036] In this embodiment, the outer dimensions of the antenna box are 125*125*20mm, the mainboard dimensions are 115*115*1mm, the bracket dimensions of the first LMH antenna, the second LMH antenna and the third LMH antenna are 60*10*11mm, and the bracket dimension of the fourth LMH antenna is 50*10*11mm.

[0037] When in use, the utility model forms corresponding conductive sheets on the antenna bracket through LDS laser engraving, chemical plating and other processes on the LMH antenna, installs the antenna bracket with the LDS antenna attached to the corresponding position on the mainboard, welds the coaxial line to the corresponding position of the mainboard, and finally installs the welded and assembled mainboard into the shell, and assembles the waterproof rubber ring and waterproof rubber pad at the same time, thus obtaining a complete product. Finally, the product is tested for electrical performance, and the product can be used normally after passing the test.

[0038] The antenna design of this utility model can obtain better antenna bandwidth and higher antenna gain, while improving the overall stability and durability of the product. The metal ions are attached to the antenna bracket using the LDS laser engraving process for fixation, and then the metal coating surface is gold-plated after completion. The overall performance is excellent and stable, and it is also convenient for large-scale production and assembly of the production line. The utility model has the characteristics of excellent performance, simple assembly of the antenna and the whole machine, and high stability.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A 5G vehicle-mounted antenna box, characterized in that: The antenna box includes an outer shell, a mainboard, a first antenna bracket, a second antenna bracket, a third antenna bracket, a fourth antenna bracket, a first LMH antenna, a second LMH antenna, a third LMH antenna, and a fourth LMH antenna; wherein the first LMH antenna, the second LMH antenna, the third LMH antenna, and the fourth LMH antenna are respectively placed on the corresponding surfaces of the first antenna bracket, the second antenna bracket, the third antenna bracket, and the fourth antenna bracket by laser engraving and chemical plating technology, and the four antenna brackets are respectively placed at the four corners of the mainboard.

2. The antenna box according to claim 1, characterized in that: The antenna box also includes a coaxial line and a coaxial line terminal head.

3. The antenna box according to claim 2, characterized in that: There are four coaxial lines, wherein the first coaxial line is electrically connected to the first LMH antenna, the second coaxial line is electrically connected to the second LMH antenna, the third coaxial line is electrically connected to the third LMH antenna, and the fourth coaxial line is electrically connected to the fourth LMH antenna.

4. The antenna box according to claim 3, characterized in that: The coaxial line terminal head is electrically connected to the other end of the corresponding coaxial line, and the coaxial line terminal head is used to connect to the signal transceiver end of the vehicle computer.

5. The antenna box according to claim 4, characterized in that: The first coaxial line and the second coaxial line are both routed from the front side of the mainboard, and the third coaxial line and the fourth coaxial line are both routed from the back side of the mainboard.

6. The antenna box according to claim 1, characterized in that: The frequency range covered by the antenna box is 600MHz~960MHz and 1710MHz~5000MHz.

7. The antenna box according to claim 1, characterized in that: The size of the shell is 125*125*20mm, and the size of the mainboard is 115*115*1mm.

8. The antenna box according to claim 1, characterized in that: The sizes of the first antenna bracket, the second antenna bracket and the third antenna bracket are 60*10*11 mm, and the size of the fourth antenna bracket is 50*10*11 mm.

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