A chassis-mounted antenna common to flat and curved surfaces

Abstract

The utility model discloses a bottom disc vehicle antenna shared by plane and curved surface, including antenna bottom plate, antenna bottom plate is embedded and is assembled in antenna cover, and is assembled on the vehicle body through antenna bottom plate cover, antenna bottom plate and antenna cover are assembled through the detachable installation curved surface backing plate connection, the both sides of antenna bottom plate are circuit board installation side and pin shaft assembly side respectively, is provided with inside and outside cover and sets up installation ring table no.

Description

Technical Field

[0001] This utility model relates to the field of vehicle antenna technology, and in particular to a chassis vehicle antenna that uses both planar and curved surfaces. Background Technology

[0002] The design of automotive antenna chassis must balance installation stability and signal reception efficiency for different roof shapes (flat or curved). Among existing automotive antenna types, roof-mounted shark fin antennas adapt to curved roofs through adjustable mounting structures, while some concealed antennas (such as windshield-integrated antennas) rely on adhesive or embedded chassis for planar adaptation. Existing automotive antennas are designed individually, resulting in poor compatibility and inability to be shared.

[0003] Therefore, it is necessary to develop a vehicle chassis that is compatible with both curved and flat surfaces, while solving three core problems: sealing and waterproofing (to avoid water leakage failure), angle adjustment (to adapt to the curvature of curved surfaces), and compatibility (different antenna types). Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides a chassis-mounted antenna that can be used for both planar and curved surfaces. It has strong angle adjustment performance and is compatible with both curved and planar vehicle chassis. It also has good sealing and waterproofing properties to avoid water leakage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a chassis vehicle-mounted antenna that uses both planar and curved surfaces, including an antenna base plate, which is embedded and assembled in an antenna cover, and is mounted on the vehicle body through the antenna base plate; the antenna base plate and the antenna cover are connected by a detachable curved pad. The antenna base plate has a circuit board mounting side and a pin assembly side on its two sides, respectively. The circuit board mounting side is provided with an inner and outer mounting ring platform 1 and a mounting ring platform 2, and a sealing ring groove 2 is reserved between the mounting ring platform 1 and the mounting ring platform 2. The pin assembly side is provided with a spline pin, which is installed on the vehicle body through the spline pin and the connecting assembly. The mounting ring is embedded in the radome and assembled with the inner docking platform 1 in the radome, and is sealed to the radome through the sealing ring groove 2; or, the mounting ring is embedded in the curved pad and is sealed to the curved pad through the sealing ring groove 2; the curved pad is assembled with the inner docking platform 2 in the radome.

[0006] In a preferred embodiment of this utility model, the radome and the antenna base plate are assembled together by a connecting assembly and a connector; the connecting assembly includes: A spline positioning component that mates with a spline pin, and a spline latch that locks the spline positioning component to the vehicle body, the spline latch being confined to the vehicle body.

[0007] In a preferred embodiment of the present invention, the antenna base plate is embedded and assembled in a curved pad, and is assembled with the antenna cover and the vehicle body through the curved pad. The curved pad has an assembly contact surface on one side and an assembly contact surface on the other side; the assembly contact surface is provided with a mating cavity, and the curved pad is provided with a through groove located in the mating cavity; The mounting ring is embedded in the through groove and makes sealed contact with the docking cavity through the sealing ring groove 2. The antenna base plate is provided with several locking slots; the curved pad is provided with several snap hooks that can engage with the locking slots.

[0008] In a preferred embodiment of this utility model, a sealing ring groove is provided on the assembly contact surface of the curved pad, which is arranged around the through groove. A plurality of mounting holes for assembling with the radome are also provided between the sealing ring groove and the through groove; and the sealing ring groove is in sealed contact with the radome.

[0009] In a preferred embodiment of this utility model, the through groove of the curved pad is further provided with a foolproof groove, and the antenna base plate is provided with a foolproof protrusion located on the outer periphery of the mounting ring, the foolproof protrusion and the foolproof groove are aligned.

[0010] In a preferred embodiment of this utility model, a mounting ring is formed on the mounting side of the circuit board to create a mounting cavity, and the mounting ring is also provided with a plurality of mounting holes and positioning posts. The antenna circuit board is positioned and assembled on the mounting side of the circuit board through the mounting holes and positioning posts.

[0011] In a preferred embodiment of the present invention, the antenna base plate is provided with a locking edge extending beyond the second mounting ring. The locking edge is provided with a locking slot and a locking hole, and the antenna cover is locked in the mating cavity on the assembly contact surface of the curved pad through the locking hole.

[0012] In a preferred embodiment of this utility model, a sealing ring groove three is also provided on the assembly side of the pin shaft, which is arranged around the periphery of the spline pin shaft, and makes sealing contact with the vehicle body through the sealing ring groove three. Furthermore, the mounting cavity is provided with several clearance slots, which are used for threading wires or inserting antenna components, and the clearance slots are located in the area surrounded by the sealing ring groove.

[0013] In a preferred embodiment of the present invention, sealing rings are respectively embedded in sealing ring groove three, sealing ring groove one, and sealing ring groove two.

[0014] In a preferred embodiment of the present invention, a limiting hole is further provided in the docking cavity, which is located around the through groove. The limiting hole is connected to a sealing ring groove, and a protrusion is provided on the sealing ring in the sealing ring groove that is embedded in the limiting hole.

[0015] In a preferred embodiment of this invention, the side of the annular platform located on the outer periphery of the docking cavity on the curved pad has an arc-shaped structure.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model discloses a chassis-mounted antenna that can be used for both planar and curved surfaces. It has strong angle adjustment performance and can be compatible with both curved and planar vehicle chassis. It also has good sealing and waterproofing properties to avoid water leakage.

[0017] 1. By setting up a detachable curved pad, the antenna base plate can be adapted to both planar and curved positions on the vehicle body, improving installation compatibility.

[0018] 2. By setting sealing ring groove 2 and sealing ring groove 3 on both sides of the antenna base plate, the waterproof sealing performance is improved.

[0019] 3. The antenna base plate improves the assembly compatibility performance by using splined pins and connecting components to assemble with the vehicle body. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is an exploded structural diagram of a chassis-mounted antenna that uses both planar and curved surfaces according to this utility model. Figure 2 This is an axial view structural diagram of the curved surface pad and antenna base plate during assembly in a chassis vehicle-mounted antenna that uses both planar and curved surfaces according to this utility model. Figure 3 This is a schematic diagram of the axial view structure of the antenna base plate in this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the axial view structure of the antenna base plate in this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the axial view structure of the antenna base plate in this utility model. Figure 3 ; Figure 6 This is a schematic diagram of the axial view structure of the antenna base plate in this utility model. Figure 4 ; Figure 7 This is a top view of the antenna base plate in this utility model. Figure 8 This is a side view of the antenna base plate in this utility model. Figure 9 This is a bottom view of the antenna base plate in this utility model. Figure 10 This is a schematic diagram of the axial view structure of the curved pad in this utility model. Figure 1 ; Figure 11 This is a schematic diagram of the axial view structure of the curved pad in this utility model. Figure 2 ; Figure 12 This is a schematic diagram of the axial view structure of the curved pad in this utility model. Figure 3 ; Figure 13 This is a schematic diagram of the axial view structure of the curved pad in this utility model. Figure 4 ; The components include: 1. Antenna radome; 11. Connector 1; 2. Antenna circuit board; 3. Curved pad; 31. Assembly contact surface; 32. Assembly contact surface; 33. Docking cavity; 34. Through groove; 35. Plug hook; 36. Anti-foolproof groove; 37. Sealing ring groove 1; 4. Antenna base plate; 41. Circuit board mounting side; 411. Mounting ring platform 1; 412. Mounting cavity; 413. Mounting hole; 414. Positioning post; 415. Sealing ring groove 2; 416. Mounting ring platform 2; 417. Locking edge; 418. Locking slot; 419. Locking hole; 42. Pin assembly side; 421. Spline pin; 422. Connecting hole; 423. Sealing ring groove 3; 43. Anti-foolproof protrusion; 44. Sealing ring; 5. Sponge pad; 6. Connector; 7. Spline lock; 8. Spline positioning component; 9. Connector 2. Detailed Implementation

[0022] 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.

[0023] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this embodiment can be understood according to the specific circumstances.

[0024] 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.

[0025] Example 1, as Figures 1-8 As shown, a chassis-mounted antenna that uses both planar and curved surfaces includes an antenna base plate 4, which is embedded in an antenna cover 1 and mounted on the vehicle body. The antenna base plate 4 and the antenna cover 1 are connected by a detachable curved pad 3.

[0026] Specifically, the two sides of the antenna base plate 4 are the circuit board mounting side 41 and the pin assembly side 42, respectively.

[0027] The circuit board mounting side 41 is provided with a mounting ring platform 1 411 and a mounting ring platform 2 416 arranged in a ring with inner and outer spacing, and a sealing ring groove 2 415 is reserved between the mounting ring platform 1 411 and the mounting ring platform 2 416. The mounting ring platform 1 411 forms a mounting cavity 412 on the circuit board mounting side 41, and is also provided with several mounting holes 413 and positioning posts 414. The antenna circuit board 2 is positioned and assembled on the circuit board mounting side 41 via the connector 11 and the mounting holes 413 and positioning posts 414. The antenna base plate 4 is provided with a locking edge 417 extending beyond the mounting ring platform 2 416. The locking edge 417 is provided with a locking slot 418 and a locking hole 419. The antenna cover 1 is locked onto the curved pad 3 or the antenna base plate 4 is locked into the antenna cover 1 through the locking hole 419. That is, the mounting ring 411 is embedded in the radome 1 and assembled with the inner docking platform 1 in the radome 1, and is sealed in contact with the radome 1 through the sealing ring groove 415; or, the mounting ring 411 is embedded in the curved pad 3 and is sealed in contact with the curved pad 3 through the sealing ring groove 415; the curved pad 3 is assembled with the inner docking platform 2 in the radome 1.

[0028] Among them, a spline pin 421 is provided on the pin assembly side 42 (in this embodiment, a triangular fixing buckle is used to improve the stability of the positioning assembly), and the antenna base plate 4 is limited to the vehicle body by the spline pin 421 and the second connector 9 (the second connector 9 is a screw with external threads, that is, it is threadedly connected to other assembled structures).

[0029] Furthermore, a sealing ring groove 423 is provided on the assembly side 42 of the pin shaft, surrounding the spline pin shaft 421. This sealing ring groove 423 provides a sealed contact with the vehicle body. Several clearance slots are provided within the mounting cavity 412, used for threading or inserting antenna components. These clearance slots are located within the area enclosed by the sealing ring groove 423. Sealing rings 44 are embedded in the sealing ring groove 423, the first sealing ring groove 37, and the second sealing ring groove 415. The connecting piece 2 9 passes through the connecting hole 422 of the spline pin shaft 421, securing the antenna cover 1 to the vehicle body.

[0030] In Embodiment Two, based on Embodiment One, the radome 1 and the antenna base plate 4 are assembled using a connecting assembly and a second connector 9. The connecting assembly includes a spline positioning component 8 that mates with the spline pin 421, and a spline latch 7 that locks the spline positioning component 8 onto the vehicle body. The spline positioning component 8 is secured to the vehicle body by the second connector 9. The spline positioning component 8 uses a spline device from the prior art and is connected to the chassis via a latch structure from the prior art. The latch design ensures the stability of the connection with the chassis. The spline latch 7 uses a fixed spring installed on the spline device from the prior art, which provides elastic fixation and can provide a certain buffer and maintain the relative position of the components during device operation.

[0031] In Embodiment 3, based on Embodiment 1 or Embodiment 2, the curved pad 3 has an assembly contact surface 31 and an assembly contact surface 32 on both sides, respectively; a docking cavity 33 is provided on the assembly contact surface 32, and a through groove 34 located in the docking cavity 33 is provided on the curved pad 3; the antenna base plate 4 can be embedded and assembled in the curved pad 3, and is assembled with the antenna cover 1 and the vehicle body through the curved pad 3. That is, the mounting ring platform 411 is embedded in the through groove 34, and is in sealed contact with the docking cavity 33 through the sealing ring groove 415; the antenna base plate 4 is provided with a plurality of locking slots 418; the curved pad 3 is provided with a plurality of snap hooks 35 that can engage with the locking slots 418.

[0032] Furthermore, the curved pad 3 has a sealing ring groove 37 arranged around the through groove 34 on the assembly contact surface 31. There are also several mounting holes for assembling with the radome 1 between the sealing ring groove 37 and the through groove 34; and it is in sealed contact with the radome 1 through the sealing ring groove 37.

[0033] Furthermore, the curved pad 3 has a through groove 34 with a foolproof groove 36, and the antenna base plate 4 has a foolproof protrusion 43 located on the outer periphery of the mounting ring 416, with the foolproof protrusion 43 engaging with the foolproof groove 36.

[0034] Specifically, sealing rings 44 are embedded in sealing ring groove 323, sealing ring groove 1, and sealing ring groove 2, respectively. A limiting hole is also provided in the mating cavity 33, located around the through groove 34. The limiting hole communicates with sealing ring groove 1, and the sealing ring 44 in sealing ring groove 1, 37 is provided with a protrusion that is embedded in the limiting hole.

[0035] Specifically, the side of the annular platform on the curved pad 3 located on the outer periphery of the docking cavity 33 has an arc-shaped structure.

[0036] In Example 4, based on Example 3, the curved pad 3 and antenna base plate 4 are made of ABS engineering plastic or aluminum alloy, balancing strength and weight reduction requirements to avoid increasing wind resistance. In this example, the antenna base plate 4 is made of aluminum alloy through one-piece die casting. Aluminum alloy has high strength and low weight, and the outer shell is made of ABS plastic, which is also lightweight and reduces wind resistance. The side of the ring platform on the curved pad 3 located on the outer periphery of the docking cavity 33 has an arc-shaped structure. The curved roof also incorporates a curved pad 3 to match the installation on the curved roof. The antenna base plate 4 is wrapped with silicone on all four sides and in the middle for enhanced waterproofing. This example can accommodate most shark fin vehicle antennas for installation on different vehicle models, offering high compatibility.

[0037] Example 5: Based on Example 3 or Example 4, this example adopts a dual fixing method; the dual fixing method is 3M adhesive (initial fixing) and bolt (connector 2 9) locking (long-term stability), which is suitable for flat roofs; curved roofs can be additionally equipped with curved pads 3, i.e. arc-shaped pads, to compensate for the curvature difference.

[0038] Example 6, based on Example 5, this example uses a ball-head structure for the connecting component, allowing the chassis to tilt within a 0-30° range, adapting to the curvature of a curved roof, similar to the rotating ball-head design of a roof-mounted antenna. It integrates multiple layers of waterproof gaskets (silicone material) to fill the gaps in the curved surface through compression deformation. It features a pre-installed threaded interface (M6) and a snap-fit ​​structure, compatible with various antenna bodies such as rod-type and shark fin-type.

[0039] Example 7, based on any of Examples 1 to 6, further includes a sponge pad layer 5 disposed on the antenna base plate 4. More specifically, the sponge pad layer 5 is disposed on the pin assembly side 42 of the antenna base plate 4. It also includes a connector 6 disposed on the antenna base plate 4, the connector 6 being used to achieve electrical or signal connections, ensuring signal or power transmission between components.

[0040] Working principle: This utility model discloses a chassis-mounted antenna that can be used on both planar and curved surfaces. It has strong angle adjustment performance and is compatible with both curved and planar vehicle chassis. It also has good sealing and waterproofing properties to prevent water leakage.

[0041] In use, when the chassis-mounted antenna needs to be installed on a flat surface of the vehicle body, the curved pad 3 is not required (i.e., the curved pad 3 is removed). The antenna base plate 4, on which the antenna circuit board 2 is installed, is directly snapped into the mounting cavity 412 of the antenna cover 1. The antenna base plate 4 is assembled and locked with the antenna base plate 4 through the locking hole 419 provided on the antenna base plate 4. The sealing ring groove 415 provided on the antenna base plate 4, through the embedded sealing ring 44, aligns with the corresponding ring platform in the mounting cavity 412 of the antenna cover 1. The screw (i.e., connector 11) passes through the locking hole 419 to lock the antenna base plate 4 with the corresponding ring platform in the mounting cavity 412 of the antenna cover 1. However, it is not limited to this; it can also be engaged with the insertion locking block in the mounting cavity 412 of the antenna cover 1 through the pre-designed insertion ring on the antenna base plate 4. Then, the antenna base plate 4 is fixed to the vehicle body by the splined pin 421 and the connecting assembly, and is further fixed to the vehicle body by the connecting hole 422 of the splined pin 421 and the connector 9.

[0042] When in use, when the chassis vehicle antenna needs to be installed on the curved surface of the vehicle body, the antenna base plate 4 and the antenna cover 1 are assembled and connected on the curved surface of the vehicle body through the detachable curved pad 3. The antenna base plate 4 is embedded in the antenna cover 1 and is mounted on the vehicle body through the antenna base plate 4.

[0043] 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 chassis-mounted antenna that combines planar and curved surfaces, comprising an antenna base plate (4), the antenna base plate (4) being embedded and assembled in an antenna cover (1), and mounted on the vehicle body through the antenna base plate (4); characterized in that: The antenna base plate (4) and the antenna cover (1) are assembled and connected by a detachable curved pad (3); The antenna base plate (4) has a circuit board mounting side (41) and a pin assembly side (42) on its two sides. The circuit board mounting side (41) is provided with an inner and outer mounting ring platform one (411) and a mounting ring platform two (416), and a sealing ring groove two (415) is reserved between the mounting ring platform one (411) and the mounting ring platform two (416). The pin assembly side (42) is provided with a spline pin (421), which is installed on the vehicle body through the spline pin (421). The mounting ring platform (411) is embedded in the radome (1) and assembled with the inner docking platform (1) in the radome (1), and is sealed to the radome (1) through the sealing ring groove (415); or, the mounting ring platform (411) is embedded in the curved pad (3) and is sealed to the curved pad (3) through the sealing ring groove (415); the curved pad (3) is assembled with the inner docking platform (2) in the radome (1).

2. The chassis-mounted antenna with both planar and curved surfaces as described in claim 1, characterized in that: The radome (1) and the antenna base plate (4) are assembled by means of a connecting assembly and a connector (9); the connecting assembly includes: A spline positioning member (8) that engages with the spline pin (421), and a spline latch (7) that limits the spline positioning member (8) to the vehicle body.

3. A chassis-mounted antenna with both planar and curved surfaces as described in claim 1, characterized in that: The antenna base plate (4) is embedded in the curved pad (3) and is assembled with the antenna cover (1) and the vehicle body through the curved pad (3); The curved pad (3) has an assembly contact surface (31) and an assembly contact surface (32) on its two sides respectively; a docking cavity (33) is provided on the assembly contact surface (32), and a through groove (34) is provided on the curved pad (3) located in the docking cavity (33). The mounting ring platform one (411) is embedded in the through groove (34) and is in sealed contact with the docking cavity (33) through the sealing ring groove two (415); The antenna base plate (4) is provided with a number of locking slots (418); the curved pad plate (3) is provided with a number of snap hooks (35) that can engage with the locking slots (418).

4. A chassis-mounted antenna with both planar and curved surfaces as described in claim 3, characterized in that: The curved pad (3) has a sealing ring groove (37) arranged around the through groove (34) on its assembly contact surface (31). There are also a number of mounting holes for assembling the antenna cover (1) between the sealing ring groove (37) and the through groove (34). The sealing ring groove (37) is in sealed contact with the antenna cover (1).

5. A chassis-mounted antenna with both planar and curved surfaces as described in claim 4, characterized in that: The curved pad (3) is provided with a through groove (34) and a foolproof groove (36) is provided on the antenna base plate (4) on the outer periphery of the mounting ring (416). The foolproof bump (43) is engaged with the foolproof groove (36).

6. A chassis-mounted antenna with both planar and curved surfaces as described in claim 5, characterized in that: The mounting ring platform (411) forms a mounting cavity (412) on the circuit board mounting side (41), and The mounting ring platform (411) is also provided with several mounting holes (413) and positioning posts (414). The antenna circuit board (2) is positioned and assembled on the circuit board mounting side (41) through the mounting holes (413) and positioning posts (414).

7. A chassis-mounted antenna with both planar and curved surfaces as described in claim 6, characterized in that: The antenna base plate (4) is provided with a locking edge (417) extending beyond the mounting ring platform (416). The locking edge (417) is provided with a locking slot (418) and a locking hole (419). The antenna cover (1) is locked in the mating cavity (33) on the assembly contact surface (32) of the curved pad (3) through the locking hole (419).

8. A chassis-mounted antenna with both planar and curved surfaces as described in claim 7, characterized in that: The assembly side (42) of the pin shaft is also provided with a sealing ring groove three (423) surrounding the spline pin shaft (421), and the sealing ring groove three (423) is in sealing contact with the vehicle body. Furthermore, the mounting cavity (412) is provided with several clearance slots, which are used for threading or plugging antenna components, and the clearance slots are located in the area enclosed by the sealing ring groove (423).

9. A chassis-mounted antenna with both planar and curved surfaces as described in claim 8, characterized in that: A sealing ring (44) is embedded in the sealing ring groove three (423), the sealing ring groove one (37), and the sealing ring groove two (415).

10. A chassis-mounted antenna with both planar and curved surfaces as described in claim 9, characterized in that: The docking cavity (33) is also provided with a limiting hole located around the through groove (34). The limiting hole is connected to the sealing ring groove (37). The sealing ring (44) in the sealing ring groove (37) is provided with a protrusion embedded in the limiting hole. And / or, the side of the annular platform on the curved pad (3) located on the outer periphery of the docking cavity (33) has an arc-shaped structure.

Images