Vehicle-mounted single-PCB integrated double-antenna mounting structure

Abstract

The utility model provides a vehicle-mounted single-PCB integrated double-antenna installation structure, two antennas are arranged on the same side edge of a main board body of a PCB at intervals, the shapes of board bodies of the two antennas are in mirror symmetry, and the shapes of antenna wire bodies borne on the board bodies are also in mirror symmetry; through supporting and positioning of the supporting columns on the supporting panel, a height difference is formed between the antenna radiating body of the first antenna and the antenna radiating body of the second antenna, height differences are formed between the antenna radiating body of the first antenna and the antenna radiating body of the second antenna and a circuit area on the main board body, and the antenna radiating bodies of the first antenna and the second antenna are located in an upper area and a lower area separated by the main board body. According to the utility model, the double antennas on the single PCB substrate are made into a three-dimensional space through deformation, and then are fixed through a specific angle, so that the double antennas generate a displacement difference in space, and the effect of a three-dimensional antenna is generated, thereby reducing the signal interference of the double antennas, and enhancing the signal receiving performance of the antennas.

Description

TECHNICAL FIELD

[0001] The utility model belongs to antenna technical field, especially is involved in a kind of installation structure of single PCB board integrated double antenna for vehicle. BACKGROUND

[0002] With the development of new energy vehicles in recent years, the price competition of vehicle-mounted products is increasingly fierce, and the development of parts reduction and high integration products is increasingly adopted, followed by how to integrate antenna in limited space, and ensure the receiving performance of antenna. Because there will be signal interference between double antennas, the traditional 2 loop antennas are set on single PCB substrate, which will cause poor isolation because there is no height difference on the same plane of product required size, so interference between antennas will occur. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides the following technical scheme:

[0004] A kind of installation structure of single PCB board integrated double antenna for vehicle, double antenna is first antenna and second antenna respectively, two antennas are arranged on the same side side of the main plate body of PCB board with interval, the shape of the plate body of two antennas is mirror image symmetry, and the shape of antenna wire body carried on each plate body is also mirror image symmetry;By the support positioning of each support column on support panel, height difference is formed between the antenna radiator of first antenna and the antenna radiator of second antenna, and height difference is also formed with the circuit area on main plate body and located in the upper and lower two regions separated by main plate body.

[0005] Further, the plate body of each antenna includes first longitudinal portion, first transverse portion, second longitudinal portion and second transverse portion connected in sequence, first longitudinal portion starts from the side edge of main plate body and extends along the longitudinal direction perpendicular to the side edge and away from main plate body;Right angle bending connection is formed between first longitudinal portion and first transverse portion, and first transverse portion extends along the transverse direction parallel to the side edge of main plate body and away from another antenna;Right angle bending connection is formed between first transverse portion and second longitudinal portion, and second longitudinal portion extends along the longitudinal direction;Right angle bending connection is formed between second longitudinal portion and second transverse portion, and second transverse portion extends along the transverse direction and away from another antenna;

[0006] The antenna wire body carried on the plate body includes antenna wiring portion and antenna radiator, the wiring shape of antenna wiring portion is similar to the shape of antenna plate body, and the antenna radiator is located at the end of antenna wiring portion and on the second transverse portion.

[0007] Further, the antenna radiator is located at the end near the extension direction of the second transverse portion.

[0008] Further, the plate body width of the first longitudinal portion is not less than 4mm; the plate body width of the first longitudinal portion, the first transverse portion and the second longitudinal portion are the same; the plate body width of the second transverse portion is not less than 6.5mm; the plate body extension length of the second transverse portion is not less than 20mm; and the spacing between the second transverse portion and the main plate body is not less than 15mm.

[0009] Further, each antenna wire body loop adopts a molopole form, and the antenna radiator is designed in an F shape.

[0010] Further, the support columns fixed on the support panel include main plate support columns, a first antenna support column and a second antenna support column, the number of the main plate support columns is at least two, the main plate body of the PCB plate is supported by the main plate support columns and is fixed and positioned by screwing fastening screws through main plate mounting holes and the main plate support columns;

[0011] The second transverse portion of the first antenna plate body is supported by the first antenna support column and is fixed by screwing fastening screws through antenna mounting holes on the second transverse portion and the first antenna support column;

[0012] The second transverse portion of the second antenna plate body is supported by the second antenna support column and is fixed and positioned by screwing fastening screws through antenna mounting holes and the second antenna support column.

[0013] Further, with the main plate body as a reference, the second transverse portion of the first antenna plate body supported and positioned by the first antenna support column is lower than the plane where the main plate body is located as a whole, and the second transverse portion of the second antenna plate body supported and positioned by the second antenna support column is higher than the plane where the main plate body 1 is located as a whole.

[0014] Further, the antenna mounting holes on the second transverse portions of the first antenna plate body and the second antenna plate body are arranged between the antenna radiators and the straight-angle bending joints of the second longitudinal portions and the second transverse portions.

[0015] Further, the center line of the mirror image symmetry of the two antennas is the center line of the side edge of the main plate body where the two antennas are located.

[0016] Further, the plate bodies of the two antennas and the main plate body are integrally made, and the thicknesses of the plate bodies of the two antennas and the main plate body are the same.

[0017] The utility model discloses a double antenna on single piece PCB substrate is made into three-dimensional space through deformation, then is fixed through specific angle, makes double antenna produce spatial displacement difference, produces the effect of three-dimensional antenna, thereby reduced the signal interference of double antenna, enhanced the receiving performance of antenna. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a front view schematic diagram of the PCB board integrating dual antennas according to this utility model;

[0020] Figure 2 for Figure 1 Enlarged diagram of the first celestial ridge in the middle;

[0021] Figure 3 This is a three-dimensional schematic diagram of the installation structure of this utility model;

[0022] Figure 4 This is a top view of the installation structure of this utility model.

[0023] In the figure, the reference numerals are: main plate 1; main plate mounting hole 11; first antenna plate 2; second antenna plate 3;

[0024] First longitudinal section 21; First transverse section 22; Second longitudinal section 23; Second transverse section 24; Antenna mounting hole 241; Antenna wiring section 25; Antenna radiator 26;

[0025] Support panel 4; main plate support column 41; first antenna support column 42; second antenna support column 43. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of the embodiments of this utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this utility model or simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] The term "single PCB board" in this utility model is an abbreviation for a single PCB board. Terms such as "first" and "second" are used only for descriptive distinction and should not be construed as indicating or implying relative importance.

[0029] Unless otherwise explicitly stated and limited, the terms “set up,” “install,” and “connect” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a direct connection or an indirect connection through an intermediate medium.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Figure 1 and Figure 2 The figure shows a schematic diagram of the single PCB board with integrated dual antennas of this utility model in the state when not installed. As shown in the figure, the two antennas are the first antenna and the second antenna. The two antennas are located on the same side of the main board 1 of the PCB board, and the two antennas are mirror symmetrical, that is, the shapes of the two antenna boards are mirror symmetrical, and the shapes of the antenna lines carried on the boards of the two antennas are also mirror symmetrical. Preferably, the center line of the mirror symmetry is the center line of the side of the main board 1 where the two antennas are located.

[0032] Preferably, if the surface of the main board 1 is rectangular, then the side where the two antennas are located is one of the long sides of the main board 1.

[0033] Preferably, the plates of the two antennas are integrally formed with the main body 1, and the plates of the two antennas and the main body 1 have the same thickness.

[0034] Furthermore, the spacing between the two antennas is more than three times the overall lateral width of one antenna.

[0035] by Figure 2 Taking the first antenna plate 2 as an example, the shape of the antenna plate is as follows: it includes a first longitudinal part 21, a first transverse part 22, a second longitudinal part 23, and a second transverse part 24 connected in sequence. The first longitudinal part 21 starts from the side of the main plate 1 and extends along the longitudinal direction perpendicular to the side and away from the main plate 1. The first longitudinal part 21 and the first transverse part 22 are connected by a right-angle bend, and the first transverse part 22 extends in a transverse direction parallel to the side of the main plate 1 where the antenna is located and away from the direction of another antenna. The first transverse part 22 and the second longitudinal part 23 are connected by a right-angle bend, and the second longitudinal part 23 extends in a longitudinal direction away from the main plate. The second longitudinal part 23 and the second transverse part 24 are connected by a right-angle bend, and the second transverse part 24 extends in a transverse direction parallel to the side of the main plate 1 where the antenna is located and away from the direction of another antenna.

[0036] The antenna line body (i.e. copper area) carried on the two antenna boards respectively comprises an antenna trace part 25 and an antenna radiator 26, the trace shape of the antenna trace part 25 is similar to the shape of the antenna board, the antenna radiator 26 is located at the end of the antenna trace part 25 and on the second transverse part 24; preferably, the antenna radiator 26 is located at the end close to the extension direction of the second transverse part 24.

[0037] Further, the plate width L1 of the first longitudinal part 21 is not less than 4 mm.

[0038] Preferably, the plate widths of the first longitudinal part 21, the first transverse part 22 and the second longitudinal part 23 are the same.

[0039] Further, the plate width L2 of the second transverse part 24 is not less than 6.5 mm.

[0040] Further, the plate extension length L3 of the second transverse part 24 is not less than 20 mm.

[0041] Further, the spacing L4 between the second transverse part 24 and the main plate body 1 is not less than 15 mm.

[0042] The antenna line body loop design adopts a molopole form, the bandwidth of the antenna is wide (not less than 300 MHz), and the antenna frequency drift problem that can be caused in a complex scene can be solved; the antenna radiator 26 is designed in an F shape, the length is increased by opening a slit, the size of the antenna is reduced, and space is saved; the end of the antenna trace part is appropriately away from the reference ground (more than 3 mm) of the antenna, so that the antenna radiation is more favorable.

[0043] The installation structure of the utility model will be described below in combination with Figure 3 and Figure 4

[0044] The whole PCB is fixedly installed in the inner side area of the support panel 4, and the outer side area is the in-vehicle space; the support panel 4 is fixedly provided with a main plate support column 41, a first antenna support column 42 and a second antenna support column 43; the number of the main plate support columns 41 is at least two; the main plate body 1 of the PCB is supported by the main plate support columns 41 and is fixedly positioned by screwing and fixing with the main plate support columns 41 through the main plate mounting holes 11 and the fastening screws (not shown in the figure);

[0045] The second transverse part 24 of the first antenna plate body 2 is supported by the first antenna support column 42 and is fixedly positioned by screwing and fixing with the first antenna support column 42 through the antenna mounting holes 241 on the second transverse part 24 and the fastening screws (not shown in the figure);

[0046] The second transverse part of the second antenna plate body 3 is supported by the second antenna support column 43 and is fixedly positioned by screwing and fixing with the second antenna support column 43 through the antenna mounting holes and the fastening screws (not shown in the figure).​

[0047] With the main board body 1 as the reference, the second transverse part 24 of the first antenna board body 2 supported and positioned by the first antenna support column 42 is lower than the plane where the main board body 1 is located, and the second transverse part of the second antenna board body 3 supported and positioned by the second antenna support column 43 is higher than the plane where the main board body 1 is located, so that the antenna radiators 26 of the first antenna and the antenna radiators of the second antenna form a height difference, and are also located in the upper and lower two areas separated by the main board body 1, that is, the antenna radiators 26 of the first antenna and the antenna radiators of the second antenna are not in the same plane, and are also not coplanar with the circuit area on the main board body 1, thereby effectively solving the problems of signal interference and signal attenuation caused by the same plane antenna.

[0048] Preferably, the antenna mounting holes on the second transverse part of the first antenna board body 2 and the second antenna board body 3 are arranged between the antenna radiators and the straight angle bending connection of the second longitudinal part and the second transverse part, so that the second transverse part part where the antenna radiators are located can maintain a posture as parallel as possible to the board surface of the main board body 1.

[0049] The PCB of the utility model can be made to be coplanar with the main board body 1 before the first two antenna board bodies are installed, and then when installed, the first antenna board body 2 and the second antenna board body 3 are deformed by force and are supported and positioned by the first antenna support column 42 and the second antenna support column 43 respectively; or the first antenna board body 2 and the second antenna board body 3 can be made to have the required shape when made, which will not be described herein.

[0050] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A mounting structure for integrating dual antennas on a single PCB board for vehicle use, wherein the dual antennas are a first antenna and a second antenna, characterized in that, The two antennas are arranged on the same side of the main plate body of the PCB board, the plate bodies of the two antennas are mirror-symmetric, and the shapes of the antenna lines carried on the plate bodies are also mirror-symmetric; the antenna radiators of the first antenna and the second antenna are positioned by the supports of the support panel, and the antenna radiators form a height difference and are located in the upper and lower regions separated by the main plate body.

2. The mounting structure of claim 1, wherein the mounting structure is characterized by: The plate body of each antenna comprises a first longitudinal portion, a first transverse portion, a second longitudinal portion and a second transverse portion connected in sequence, the first longitudinal portion starts from the side edge of the main plate body and extends along a longitudinal direction perpendicular to the side edge and away from the main plate body; the first longitudinal portion and the first transverse portion are connected by a right-angle bending, and the first transverse portion extends along a transverse direction parallel to the side edge of the main plate body and away from the other antenna; the first transverse portion and the second longitudinal portion are connected by a right-angle bending, and the second longitudinal portion extends along the longitudinal direction; the second longitudinal portion and the second transverse portion are connected by a right-angle bending, and the second transverse portion extends along the transverse direction and away from the other antenna; The antenna line carried on the plate body comprises an antenna trace portion and an antenna radiator, the shape of the antenna trace portion is similar to that of the antenna plate body, and the antenna radiator is located at the end of the antenna trace portion and on the second transverse portion.

3. The mounting structure of claim 2, wherein the first and second antennas are integrated on a single PCB board. The antenna radiator is located at the end of the extension direction of the second transverse portion.

4. The mounting structure of claim 2, wherein the first and second antennas are integrated on a single PCB board. The plate body width of the first longitudinal portion is not less than 4 mm; the plate body widths of the first longitudinal portion, the first transverse portion and the second longitudinal portion are the same; the plate body width of the second transverse portion is not less than 6.5 mm; the plate body extension length of the second transverse portion is not less than 20 mm; and the spacing between the second transverse portion and the main plate body is not less than 15 mm.

5. The mounting structure of claim 1, wherein the mounting structure is a single PCB board integrated dual antenna mounting structure for a vehicle. Each antenna line loop adopts a molopole form, and the antenna radiator is designed in an F shape.

6. The mounting structure of claim 2, wherein the first and second antennas are integrated on a single PCB board. The support columns fixed on the support panel comprise main plate support columns, a first antenna support column and a second antenna support column, the number of the main plate support columns is at least two, the main plate body of the PCB board is supported by the main plate support columns and is fixed and positioned by screwing the fastening screws through the main plate mounting holes and the main plate support columns; The second transverse portion of the first antenna plate body is supported by the first antenna support column and is fixed by screwing the fastening screws through the antenna mounting holes in the second transverse portion and the first antenna support column; The second transverse portion of the second antenna plate body is supported by the second antenna support column and is fixed and positioned by screwing the fastening screws through the antenna mounting holes and the second antenna support column.

7. The mounting structure of claim 6, wherein the first and second antennas are integrated on a single PCB board. With the main plate body as a reference, the second transverse portion of the first antenna plate body supported and positioned by the first antenna support column is lower than the plane where the main plate body is located, and the second transverse portion of the second antenna plate body supported and positioned by the second antenna support column is higher than the plane where the main plate body (1) is located.

8. The mounting structure of claim 6, wherein the mounting structure is a single PCB board integrated dual antenna mounting structure for a vehicle. The antenna mounting holes in the second transverse portions of the first antenna plate body and the second antenna plate body are arranged between the right-angle bending joints of the antenna radiators and the second longitudinal portions and the second transverse portions.

9. The mounting structure of claim 1, wherein the mounting structure is a single PCB board integrated dual antenna mounting structure for a vehicle. The center line of the mirror-symmetric two antennas is the center line of the side edge of the main plate body where the two antennas are located.

10. The mounting structure of claim 1, wherein the mounting structure is a single PCB board integrated dual antenna mounting structure for a vehicle. The two antenna plate bodies are integrally formed with the main plate body, and the thickness of the two antenna plate bodies is the same as that of the main plate body.

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