A vehicle antenna

Abstract

The utility model discloses a vehicle antenna, including chassis body, the both sides of chassis body are respectively assembled side and installation side, be provided with the plug -in limiting board on assembled side and be located the positioning slot of plug -in limiting board both sides, be provided with the recess for embedding plug -in monopole antenna on the plug -in limiting board, the PIFA antenna is inserted in the positioning slot, and the PIFA antenna interval arrangement is at the both sides of PIFA antenna, the PIFA antenna includes radiating roof, the one side of radiating roof is provided with the short -circuit insert strip of downwardly folding, and the short -circuit insert strip is inserted in the positioning slot, and the other side on radiating roof is provided with the curved extension arm of bending downward. The utility model discloses a vehicle antenna, supports multiple frequency bands, has excellent versatility, and has good signal receiving capability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle antenna technology, and in particular to a vehicle antenna. Background Technology

[0002] Traditional shark fin antennas are not as effective at receiving signals as conventional antennas, especially in remote areas where signal reception is weak. With increasing consumer demand, functions such as car radios, GPS navigation, vehicle radar, and 5G network integration all rely on shark fin antennas, making the optimization of vehicle antennas increasingly important.

[0003] Therefore, it is necessary to develop a vehicle-mounted antenna that supports multiple frequency bands, has excellent versatility, and good signal reception capabilities. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing a vehicle-mounted antenna that supports multiple frequency bands, has excellent versatility, and good signal reception capabilities.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a vehicle-mounted antenna, including a chassis body, with an assembly side and an installation side on both sides of the chassis body; an insertion limiting plate is provided on the assembly side, and positioning slots are located on both sides of the insertion limiting plate; the insertion limiting plate is provided with a groove for embedding a plug-in monopole antenna; a PIFA antenna is inserted into the positioning slot; the PIFA antennas are arranged at intervals on both sides of the PIFA antenna; the PIFA antenna includes a radiating top plate; a downwardly folded short-circuit insert is provided on one side of the radiating top plate, the short-circuit insert is inserted into the positioning slot; and a downwardly bent arc-shaped extension arm is provided on the other side of the radiating top plate.

[0006] In a preferred embodiment of this invention, the arc-shaped extension arms of the PIFA antennas, which are spaced apart, are arranged facing each other.

[0007] In a preferred embodiment of the present invention, the monopole antenna includes an antenna body inserted into a groove in a plug-in limiting plate on its vertical surface. A plug-in block is also provided below one end of the antenna body. The plug-in block and the antenna body are arranged in a T-shape, and the plug-in block is inserted and limited in a plug-in groove of the chassis body.

[0008] In a preferred embodiment of this utility model, both the insertion stop groove and the positioning slot are disposed through the chassis body.

[0009] In a preferred embodiment of this utility model, the assembly side is further provided with a wing docking block and a positioning hole for assembling and docking with the vehicle-mounted antenna mother seat body.

[0010] In a preferred embodiment of this utility model, an outwardly protruding buckle is provided on the outer edge of the chassis body, and the buckle is used to engage with the cover of the vehicle antenna.

[0011] In a preferred embodiment of the present invention, a cavity is provided on the mounting side, and a longitudinal through slot corresponding to the monopole antenna and the PIFA antenna is provided in the cavity. A honeycomb structure as a reinforcing rib is provided in the cavity around the longitudinal through slot.

[0012] In a preferred embodiment of the present invention, a mounting cavity for accommodating the circuit board is further provided on the assembly side; the monopole antenna and the PIFA antenna are located on the mounting cavity and are electrically connected to the circuit board.

[0013] In a preferred embodiment of the present invention, the monopole antenna includes a substrate and several monopoles of different frequency bands disposed on the substrate, and the feed point of each monopole is connected to a circuit board.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: The present invention discloses a vehicle-mounted antenna that supports multiple frequency bands, has excellent versatility, and has good signal reception capabilities.

[0015] 1. This utility model uses two bent PIFA antennas, which makes the antenna structure more compact compared to the straight structure in the prior art; and reduces the problem of mutual interference between the two antennas. 2. The monopole antenna uses several monopoles of different frequency bands, which improves the horizontal gain and reduces the sidelobes. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the axial view structure of a vehicle-mounted antenna according to this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the axial view structure of a vehicle-mounted antenna according to this utility model. Figure 2 ; Figure 3 This is a side view schematic diagram of a vehicle-mounted antenna according to the present invention; Figure 4 This is a rear-view structural schematic diagram of a vehicle-mounted antenna according to this utility model; Figure 5 This is a schematic diagram of the upward structure of a vehicle-mounted antenna according to this utility model; Figure 6 This is a schematic diagram of the axial view structure of a vehicle-mounted antenna according to this utility model. Figure 3 ; Figure 7 This is a top view schematic diagram of a vehicle-mounted antenna according to this utility model; Figure 8 This is a schematic diagram of the axial view structure of a vehicle-mounted antenna according to this utility model. Figure 4 ; Figure 9 This is a schematic diagram of the structure of a monopole antenna in a vehicle-mounted antenna according to this utility model; Among them, 1. Chassis body; 11. Assembly side; 111. Insertion limiting plate; 112. Positioning slot; 113. Flying wing docking block; 114. Wing groove; 115. Positioning hole; 116. Insertion retaining groove; 12. Mounting side; 121. Mounting hole; 122. Honeycomb structure; 123. Buckle; 2. Monopole antenna; 21. Antenna body; 22. Insertion retaining block; 3. FIFA antenna; 31. Short-circuit insert; 32. Radiation top plate; 33. Arc-shaped extension arm; 4. Cavity; A. Top copper foil; B. Substrate; C. Bottom copper foil; D. Feed point. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features therein are detailed descriptions of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features therein can be combined with each other.

[0019] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0020] Example 1, as Figures 1-8 As shown, a vehicle-mounted antenna includes a chassis body 1, with an assembly side 11 and a mounting side 12 on both sides of the chassis body 1. The assembly side 11 is provided with a plug-in limiting plate 111 and positioning slots 112 located on both sides of the plug-in limiting plate 111. Both the plug-in retaining groove 116 and the positioning slots 112 are through-holes in the chassis body 1. The plug-in limiting plate 111 has a groove for embedding a plug-in monopole antenna 2. A PIFA antenna 3 is inserted into the positioning slot 112, and the PIFA antennas 3 are spaced apart on both sides of the PIFA antenna 3.

[0021] Specifically, the PIFA antenna 3 includes a radiating top plate 32. One side of the radiating top plate 32 has a downwardly folded short-circuit insert 31, which is inserted into a positioning slot 112. The other side of the radiating top plate 32 has a downwardly curved arc-shaped extension arm 33. The arc-shaped extension arms 33 of the PIFA antennas 3 are spaced apart and face each other. Furthermore, the facing distance between the spaced-apart PIFA antennas 3 is 22mm (the distance between the facing arc-shaped extension arms 33), which is greater than the spacing of conventional antennas with straight structures in the prior art.

[0022] Specifically, the monopole antenna 2 includes an antenna body 21 inserted into a groove in the insertion limiting plate 111 on the vertical surface. A insertion stop block 22 is also provided below one end of the antenna body 21. The insertion stop block 22 and the antenna body 21 are arranged in a T-shape, and the insertion stop block 22 is inserted and limited in the insertion stop groove 116 of the chassis body 1.

[0023] Specifically, the outer edge of the chassis body 1 is provided with an outwardly protruding buckle 123, which is used to engage with the cover of the vehicle-mounted antenna. Furthermore, a sealing ring is provided at the contact point where the cover is assembled with the mounting side 12. The assembly side 11 is also provided with a mounting cavity 4 for accommodating the circuit board; the monopole antenna 2 and the PIFA antenna 3 are located in the mounting cavity 4 and are electrically connected to the circuit board.

[0024] Example 2, as Figures 1-8 As shown, based on Embodiment 1, the assembly side 11 is further provided with a wing docking block 113 and a positioning hole 115 for assembly and docking with the vehicle-mounted antenna female base body. Specifically, the wing groove 114 of the wing docking block 113 can engage with the locking block of the vehicle-mounted antenna female base body, and the positioning hole 115 can engage with the locking tongue of the vehicle-mounted antenna female base body.

[0025] Example 3, as Figures 1-8 As shown, based on Embodiment 1 or Embodiment 2, a recess is provided on the mounting side 12. A longitudinal through-slot corresponding to the monopole antenna 2 and the PIFA antenna 3 is formed within the recess, and a honeycomb structure 122 serving as a reinforcing rib is provided around the longitudinal through-slot within the recess. Specifically, a plurality of mounting holes 121 are provided around the recess on the mounting side 12, through which the device is fixedly connected to an external structure.

[0026] Specifically, the circuit board is connected to the PIFA antenna 3 and / or the monopole antenna 2, and serves as a limited ground plane for the PIFA antenna 3 and / or the monopole antenna 2.

[0027] Example 4, as Figures 1-9As shown, based on any of the embodiments from Embodiment 1 to Embodiment 3, the PIFA antenna 3 uses two bent PIFA antennas 3 designed at the corner of the shark fin structure, which makes the antenna structure compact and achieves higher isolation. The spacing between the bent PIFA antennas 3 can improve the time spacing between the PIFA antennas 3 facing each other while meeting the usage and installation requirements, that is, it can be optimized from 12mm in the prior art to 22mm, which greatly reduces the problem of mutual interference between the two antennas.

[0028] The monopole antenna 2 employs vertical collinearity of monopoles to match the 5G network, supporting both WLAN and WAVE bands. In this embodiment, the monopole antenna 2 includes a substrate B and several monopoles of different frequency bands disposed on the substrate B. The feed point D of each monopole is connected to a circuit board. The monopoles of different frequency bands use two monopoles, one supporting the 2.4GHz WLAN band and the other supporting the 5.9GHz WAVE band. The monopoles utilize vertical collinearity array technology, improving horizontal gain while reducing sidelobes. The monopoles of different frequency bands include several top copper foils A and bottom copper foils C disposed on substrate B. These top copper foils A and bottom copper foils C are connected and combined to form a single monopole. The feed point D of each monopole is connected to a circuit board. The specific manufacturing process and structure of the monopole are based on existing technologies and will not be detailed here. The specific combination structures are simply presented by combining two types of monopoles onto a single substrate B. In this embodiment, substrate B uses FR-4 material (epoxy glass cloth laminate), a material already available in the prior art. Using FR-4 material can save more than 50% in cost. Specifically, the chassis uses aluminum alloy material, a material already available in the prior art.

[0029] Working principle: This utility model discloses a vehicle-mounted antenna that supports multiple frequency bands, has excellent versatility, and provides good signal reception. The antenna employs two bent PIFA antennas 3, designed at the corners of the shark fin structure, resulting in a compact design. The novel vehicle-mounted antenna utilizes an antenna FRKRA connector for quick-plug installation on the shark fin chassis, resulting in a simple design and minimal mutual interference between the two antennas.

[0030] Based on the preferred embodiments of this utility model, and through the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the claims.

Claims

1. A vehicle antenna, characterized by, Includes a chassis body (1), with the two sides of the chassis body (1) being the assembly side (11) and the installation side (12), respectively. The assembly side (11) is provided with a plug-in limiting plate (111) and positioning slots (112) located on both sides of the plug-in limiting plate (111). The plug-in limiting plate (111) is provided with a groove for embedding the plug-in monopole antenna (2). A PIFA antenna (3) is inserted into the positioning slot (112), and the PIFA antennas (3) are arranged at intervals on both sides of the PIFA antenna (3); The PIFA antenna (3) includes a radiating top plate (32), one side of which is provided with a downwardly folded short-circuit insert (31), which is inserted into a positioning slot (112), and the other side of the radiating top plate (32) is provided with a downwardly curved arc-shaped extension arm (33).

2. The antenna according to claim 1, wherein: The arc-shaped extension arms (33) of the PIFA antenna (3) are arranged facing each other.

3. The antenna according to claim 2, wherein: The monopole antenna (2) includes an antenna body (21) inserted into a groove in a plug-in limiting plate (111) on the vertical side. A plug-in block (22) is also provided below one end of the antenna body (21). The plug-in block (22) and the antenna body (21) are arranged in a T-shape, and the plug-in block (22) is inserted into and limited in the plug-in blocking groove (116) of the chassis body (1).

4. The antenna according to claim 3, wherein: The insertion groove (116) and the positioning slot (112) are both disposed through the chassis body (1).

5. The antenna of claim 3, wherein: The assembly side (11) is also provided with a wing docking block (113) and a positioning hole (115) for assembly and docking with the vehicle-mounted antenna mother seat body.

6. The antenna of claim 5, wherein: The outer edge of the chassis body (1) is provided with an outwardly protruding buckle (123), which is used to engage with the cover of the vehicle antenna.

7. A vehicle-mounted antenna according to claim 6, characterized in that: A recess is provided on the mounting side (12), and a longitudinal through slot corresponding to the monopole antenna (2) and PIFA antenna (3) is provided in the recess. A honeycomb structure (122) as a reinforcing rib is provided on the periphery of the longitudinal through slot in the recess.

8. A vehicle-mounted antenna according to claim 7, characterized in that: The assembly side (11) is also provided with a mounting cavity (4) for accommodating the circuit board; the monopole antenna (2) and the PIFA antenna (3) are located on the mounting cavity (4) and are electrically connected to the circuit board.

9. A vehicle-mounted antenna according to claim 1, characterized in that: The monopole antenna (2) includes a substrate (B) and several monopoles of different frequency bands disposed on the substrate (B), with the feed point (D) of each monopole connected to a circuit board.

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