Vehicle-mounted 5G antenna assembly

Abstract

The utility model relates to the technical field of antennas, in particular to a vehicle-mounted 5G antenna assembly, one ends of four radio frequency cables are electrically connected with a radio frequency connector, the other ends of the four radio frequency cables are inserted into an antenna shell and are electrically connected with four 5G MIMO antenna modules respectively, the cross section of the connecting shell is of a structure shaped like a Chinese character'tian ', and a through hole is formed in the vertical direction of the connecting shell. An isolating layer is arranged between every two through holes, one end of each radio frequency cable is electrically connected with the central needle, the central needle is sleeved with a central needle fixing rubber sleeve, then a woven mesh crimping sheet is used for crimping a woven mesh of the radio frequency cables, then a crimping pipe is sleeved, a woven layer in full contact with the radio frequency cables is riveted and fixed, and finally a connecting shell is embedded and locked by a buckling sheet. Compared with the prior art, the vehicle-mounted 5G antenna assembly provided by the utility model is more convenient and faster to install, small in size, compact in structure and convenient to maintain, thereby solving the problems that the appearance of an automobile is influenced and the internal space is occupied after installation.

Description

[Technical field]

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

[0002] An antenna is actually a converter that is widely used in radio systems such as communications, broadcasting, television, radar and navigation. It plays the role of propagating radio waves and is an indispensable device for effectively radiating and receiving radio waves. Its basic working principle is to convert guided waves propagating on the transmission line into electromagnetic waves propagating in an unbounded medium (usually free space) (for transmitting signals), or to convert electromagnetic waves into guided waves (for receiving signals).

[0003] As a type of antenna, vehicle-mounted 5G antennas are widely used in various vehicles such as automobiles. However, the vehicle-mounted 5G antennas in the existing technology are relatively large in size and require a large space to be installed in the car. It is difficult to find a suitable installation location, and some installations may even affect the appearance of the car. At the same time, the performance of the antenna is relatively poor, and most of them are inconvenient to disassemble and repair. [Contents of the utility model]

[0004] In order to overcome the above problems, the utility model proposes a vehicle-mounted 5G antenna assembly that can effectively solve the above problems. The installation is more convenient and quick, and the volume is small, the structure is compact, and it is easy to maintain, thereby solving the problem of affecting the appearance of the car and the interior space after installation.

[0005] The utility model provides a technical solution to solve the above technical problems: providing a vehicle-mounted 5G antenna assembly, including a foam pad, an antenna shell, four RF cables, an RF connector, and four 5G MIMO antenna modules built into the antenna shell; one end of the four RF cables is electrically connected to an RF connector, and the other ends of the four RF cables are inserted into the antenna shell and electrically connected to the four 5G MIMO antenna modules respectively; the RF connector includes a connecting shell, four center pin fixing rubber sleeves, four center pins, four braided mesh crimping sheets, four crimping tubes, and two snap sheets; the cross-section of the connecting shell is a "field"-shaped structure, and a through hole is arranged in the vertical direction, and there is an isolation layer between each through hole; one end of the four RF cables is electrically connected to the center pin respectively, and the center pin fixing rubber sleeve is inserted into the end, and then the braided mesh crimping sheet is used to crimp the braided mesh of the RF cable, and then the crimping tube is inserted into the end, and the braided layer that fully contacts the RF cable is fixed by riveting, and finally embedded in the connecting shell and locked with a snap sheet.

[0006] Preferably, the foam pad is adhered inside the antenna housing and is located between the four 5G MIMO antenna modules.

[0007] Preferably, on both sides of the middle of the connection housing, there is a mortise and tenon structure with small card slots for installing snap pieces to fix the compression joint pipe.

[0008] Preferably, the antenna housing includes a square bottom cover, a square outer shell, and a clamping assembly; the square outer shell is clamped and connected to the square bottom cover through the clamping assembly, and a first cavity is formed inside the square outer shell and the square bottom cover, and four 5G MIMO antenna modules are arranged in the first cavity.

[0009] Preferably, the clamping assembly includes a plurality of fixing columns, a plurality of clamping columns, and a plurality of limiting columns; the plurality of fixing columns are arranged on the inner side of the square bottom cover, and a clamping groove is formed at the top of each fixing column; the plurality of clamping columns are arranged on the inner side of the square outer shell, and each clamping column corresponds to a fixing column, and the square bottom cover and the square outer shell are clamped and connected through the clamping columns and the clamping grooves; the plurality of limiting columns are arranged on the inner sides of the square bottom cover and the square outer shell.

[0010] Preferably, the clamping column includes a buffer pad arranged on the inner side of the square outer shell and a connecting column connected to the buffer pad; the connecting column is used for inserting into the clamping groove, and the buffer pad is used for buffering the extrusion force of the fixing column.

[0011] Preferably, four semi-circular notches are correspondingly arranged at the bottoms of the square bottom cover and the square outer shell, and the RF cable is inserted into the first cavity through the semi-circular notches.

[0012] Preferably, grooves are correspondingly arranged at the bottoms of the square bottom cover and the square outer shell at the positions corresponding to the four semi-circular notches, and the grooves can be filled with glue.

[0013] Preferably, a circular hole and an oval hole are correspondingly arranged on the outer side surface of the square outer shell. The screw is inserted into the hole to install the antenna on the vehicle. The oval hole is used for adjusting the position, and the circular hole is used for locking.

[0014] Preferably, a snap hook is arranged at the bottom end of the connection housing for locking and installing the RF connector on an external device.

[0015] Compared with the prior art, the on-vehicle 5G antenna assembly of the present utility model.

Description of the Drawings

[0016] Figure 1 is the overall structure diagram of the on-vehicle 5G antenna assembly of the present utility model;

[0017] Figure 2 is the exploded structure diagram of the on-vehicle 5G antenna assembly of the present utility model;

[0018] Figure 3 is the exploded structure diagram of the RF connector of the on-vehicle 5G antenna assembly of the present utility model;

[0019] Figure 4 This is the structural diagram of the bottom shell of the in-vehicle 5G antenna assembly of the present utility model;

[0020] Figure 5 This is the structural diagram of the outer shell of the in-vehicle 5G antenna assembly of the present utility model.

Specific embodiments

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are limited to the relative positions on the specified views, rather than absolute positions.

[0023] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] Please refer to Figures 1 to 5 , the in-vehicle 5G antenna assembly of the present utility model includes an antenna housing 1, four radio frequency cables 2, one radio frequency connector 3, two antenna oscillator PCB boards and a foam pad 8 built in the antenna housing 1. Two 5G MIMO antenna modules are respectively arranged on the two antenna oscillator PCB boards, a total of four 5G MIMO antenna modules. The four 5G MIMO antenna modules are respectively a 5G-1 antenna module 4, a 5G-4 antenna module 5, a 5G-2 antenna module 6, and a 5G-3 antenna module 7. One end of each of the four radio frequency cables 2 is electrically connected to the radio frequency connector 3, and the other ends of the four radio frequency cables 2 are all inserted into the antenna housing 1 and are respectively electrically connected to the four 5G MIMO antenna modules, that is, electrically connected to the 5G-1 antenna module 4, the 5G-4 antenna module 5, the 5G-2 antenna module 6, and the 5G-3 antenna module 7 respectively. The 5G-1 antenna module 4, the 5G-4 antenna module 5, the 5G-2 antenna module 6, and the 5G-3 antenna module 7 are used to connect to an external network for the vehicle head unit to connect to the network. The foam pad 8 is pasted inside the antenna housing 1 and is located between the two antenna oscillator PCB boards.

[0025] Inside the antenna housing 1, a first limiting post and a second limiting post are provided to fix the two antenna oscillator PCBs, so that the two antenna oscillator PCBs are respectively located on the upper and lower inner side surfaces of the antenna housing 1, and a foam pad 8 is filled in the middle of the two antenna oscillator PCBs.

[0026] The foam pad 8 is pasted on the 5G-2 antenna module 6 and the 5G-3 antenna module 7, so that the antenna modules do not shake inside the housing, and the isolation between the upper and lower layer antennas is increased.

[0027] The RF connector 3 includes a connection housing 31, a braided wire crimping piece 32, a center pin 33, a center pin fixing rubber sleeve 34, a crimping tube 35, and a snap piece 36. The numbers of the center pin 33, the center pin fixing rubber sleeve 34, and the crimping tube 35 are four respectively. The number of the snap pieces 36 is two.

[0028] The cross-section of the connection housing 31 is in a "field" shape structure, and through holes are provided in the vertical direction. An isolation layer is provided between each through hole. A snap hook is provided at the bottom end of the connection housing 31 for locking and installing the RF connector 3 on an external device.

[0029] One end of each of the four RF cables 2 is electrically connected to the center pin 33, then the center pin fixing rubber sleeve 34 is sleeved, then the braided wire of the RF cable 2 is crimped with the braided wire crimping piece 32, then the crimping tube 35 is sleeved, the crimping tube 35 is riveted and fixed on the RF cable 2 and electrically connected to the braided layer of the RF cable 2, and finally it is embedded back into the through hole of the connection housing 31 and fixed with the snap piece 36.

[0030] A mortise and tenon structure with small card slots is provided on both sides in the middle of the connection housing 31. During installation, first remove the snap piece 36, insert the plastic lock piece after the crimping tube 35 is crimped, so that the inserted crimping tube 35 cannot be pulled out.

[0031] The snap hook at the bottom end of the connection housing 31 can lock and fix the antenna to the external device, effectively preventing the antenna from backing off and loosening during bumping and shaking, and ensuring the stability of the connection.

[0032] Both ends of the center pin 33 are connected to the RF cable 2 and the external device respectively for signal transmission. The RF connector 3 can connect 4 antennas at the same time. On the one hand, it can improve the compactness of the structure, and on the other hand, it is convenient to connect to the external device.

[0033] To ensure the stability of the installation of the center pin 33, the RF connector 3 includes a center pin fixing rubber sleeve 34, and the center pin 33 is sleeved inside the center pin fixing rubber sleeve 34. The center pin fixing rubber sleeve 34 can be made of soft materials such as rubber, and has a certain elasticity, which can ensure that the center pin 33 will not shake randomly and ensure the stability of signal transmission.

[0034] For ease of installation, the antenna housing 1 has its volume compressed and its weight minimized. There are two screw holes on both sides of the antenna housing 1, one for locking and the other for fine-tuning the antenna position during installation.

[0035] To improve the stability of the connection of the RF cable 2, the RF connector 3 is provided with a crimping tube 35 and a braided wire crimping piece 32. The braided wire crimping piece 32 crimps the upper fixed braided wire of the RF cable 2 to improve the contact tightness; the crimping tube 35 crimps the connection between the RF cable 2 and the RF connector 3 to prevent the RF cable 2 from falling off.

[0036] The antenna housing 1 includes a square bottom case 11, a square outer case 12, a clamping assembly, and a limiting post 16; the square outer case 12 is snap-connected to the square bottom case 11 through the clamping assembly, and a first cavity is formed inside the square outer case 12 and the square bottom case 11. The four 5G MIMO antenna modules are arranged in the first cavity, that is, the 5G-1 antenna module 4, the 5G-4 antenna module 5, the 5G-2 antenna module 6, and the 5G-3 antenna module 7 are arranged in the first cavity. The limiting post 16 is arranged on the inner sides of the square bottom case 11 and the square outer case 12 for fixing the positions of the respective antenna modules.

[0037] The clamping assembly includes a plurality of fixing posts 13 and a plurality of clamping posts 14; the plurality of fixing posts 13 are arranged on the inner side of the square bottom case 11, and a clamping groove 15 is formed at the top of each fixing post 13; the plurality of clamping posts 14 are arranged on the inner side of the square outer case 12, and each clamping post 14 is arranged corresponding to a fixing post 13. The square bottom case 11 and the square outer case 12 are snap-connected through the clamping posts 14 and the clamping grooves 15, which is convenient for disassembly and assembly and easy to maintain.

[0038] The square bottom case 11 and the square outer case 12 are snap-connected through the clamping assembly, which is convenient for assembling and disassembling the antenna housing 1 and easy to repair; the two are snap-connected through the clamping posts 14 and the clamping grooves 15, which can improve the connection stability. At the same time, to avoid the extrusion force of the fixing post 13 on the clamping post 14 when the antenna shakes, the clamping post 14 includes a buffer pad 141 arranged on the inner side of the square outer case 12 and a connecting post 142 connected to the buffer pad 141. The connecting post 142 is used for inserting into the clamping groove 15. The buffer pad 141 is used for buffering the extrusion force of the fixing post 13.

[0039] Four semi-circular notches 17 are correspondingly provided at the bottoms of the square bottom case 11 and the square outer case 12. The RF cable 2 is inserted into the first cavity through the semi-circular notches 17. When the square bottom case 11 and the square outer case 12 are snap-connected, the four semi-circular notches 17 corresponding to each other on the square bottom case 11 and the square outer case 12 form a circular relief hole, which can clamp and limit the RF cable 2 to prevent the RF cable 2 from loosening and improve the connection stability of the RF cable 2. Grooves 18 are provided beside the four semi-circular notches 17 at the bottoms of the square bottom case 11 and the square outer case 12. After the RF cable 2 is inserted into the first cavity through the semi-circular notches 17, glue is injected into the grooves 18 for filling and sealing, which plays a role in waterproofing and dustproofing.

[0040] Compared with the prior art, the vehicle-mounted 5G antenna assembly of the present invention has the following beneficial effects:

[0041] 1. Small in volume and convenient for installation, it does not affect the appearance and internal components of the vehicle, and has reasonable design, compact structure, easy disassembly and maintenance, and strong practicability. By effectively utilizing the space and compressing the volume, the antenna combines four 5G MIMO antenna modules in a square housing of 78*78*14.5mm 3 , thus solving the problem that it is not easy to install due to large volume and affecting the appearance, making the antenna convenient to hide, ensuring the stability of performance, and having reasonable design, compact structure, easy disassembly and maintenance, and strong practicability.

[0042] 2. The center pin 33 is embedded in the limit sleeve, which can ensure that the center pin does not shake randomly and ensure the stability of signal transmission.

[0043] 3. Grooves 18 are provided at the positions corresponding to the four semi-circular notches 17 at the bottoms of the square bottom cover 11 and the square outer case 12, and glue can be injected for filling, which plays a role in waterproofing and dustproofing, and can prevent foreign objects from entering the vertical through hole and affecting the normal operation of the antenna.

[0044] 4. A crimping tube 35 is provided at the connection between the RF cable 2 and the RF connector 3, and the crimping tube can ensure the connection stability of the RF cable and prevent the RF cable from falling off.

[0045] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any modifications, equivalent substitutions, and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. A vehicle-mounted 5G antenna assembly, characterized in that, It includes a foam pad, an antenna housing, four RF cables, one RF connector, and four 5G MIMO antenna modules built into the antenna housing; One end of the four RF cables is electrically connected to one RF connector, and the other ends of the four RF cables are inserted into the antenna housing and respectively electrically connected to the four 5G MIMO antenna modules; The RF connector includes a connection housing, four center pin fixing rubber sleeves, four center pins, four braided mesh crimping pieces, four crimping tubes, and two snap pieces; The cross-section of the connection housing is in a "field" shape structure, and through holes are provided in the vertical direction, and there are isolation layers between each through hole; One end of the four RF cables is respectively electrically connected to the center pins, the center pin fixing rubber sleeves are sleeved, then the braided mesh of the RF cables is crimped with the braided mesh crimping pieces, then the crimping tubes are sleeved, and the braided layers of the RF cables are fully fixed by riveting, and finally they are embedded in the connection housing and locked with the snap pieces.

2. The in-vehicle 5G antenna assembly according to claim 1, wherein, The foam pad is pasted inside the antenna housing and is located between the four 5G MIMO antenna modules.

3. The vehicle-mounted 5G antenna assembly according to claim 1, wherein On both sides of the middle of the connection housing, there is a mortise and tenon structure with small card slots for installing the snap pieces to fix the crimping tubes.

4. The in-vehicle 5G antenna assembly according to claim 1, wherein The antenna housing includes a square bottom cover, a square outer shell, and a clamping assembly; the square outer shell is clamped and connected to the square bottom cover through the clamping assembly, and a first cavity is formed inside the square outer shell and the square bottom cover, and the four 5G MIMO antenna modules are arranged in the first cavity.

5. The in-vehicle 5G antenna assembly according to claim 4, wherein, The clamping assembly includes several fixing columns, several clamping columns, and several limiting columns; the several fixing columns are arranged on the inner side of the square bottom cover, and a clamping groove is opened at the top of each fixing column; the several clamping columns are arranged on the inner side of the square outer shell, and each clamping column corresponds to a fixing column, and the square bottom cover and the square outer shell are clamped and connected through the clamping columns and the clamping grooves; the several limiting columns are arranged on the inner sides of the square bottom cover and the square outer shell.

6. The vehicle-mounted 5G antenna assembly according to claim 5, wherein, The clamping column includes a buffer pad arranged on the inner side of the square outer shell and a connection column connected to the buffer pad; the connection column is used for being inserted into the clamping groove, and the buffer pad is used for buffering the extrusion force of the fixing column.

7. The in-vehicle 5G antenna assembly according to claim 4, characterized in that, Both the bottom of the square bottom cover and the square outer shell are correspondingly provided with four semi-circular notches, and the RF cables are inserted into the first cavity through the semi-circular notches.

8. The in-vehicle 5G antenna assembly according to claim 7, characterized in that, Both the bottom of the square bottom cover and the square outer shell are correspondingly provided with grooves at the positions corresponding to the four semi-circular notches, and glue can be injected into the grooves for filling.

9. The vehicle-mounted 5G antenna assembly according to claim 4, wherein, On the outer side of the square outer shell, there is correspondingly provided a circular hole and an oval hole. Screws are inserted into the holes to install the antenna on the vehicle, and the oval hole is used for adjusting the position, and the circular hole is locked.

10. The in-vehicle 5G antenna assembly according to claim 1, characterized in that, At the bottom end of the connection housing, there is a snap hook for locking and installing the RF connector on an external device.

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