A vehicle-mounted dual-layer antenna insertion structure and an ultra-shortwave antenna using this structure

Abstract

This utility model discloses a vehicle-mounted dual-layer antenna connector structure and an ultra-shortwave antenna using this structure. The structure includes an upper connector, a lower connector, an upper feeder connector, and a lower feeder connector. The upper and lower feeder connectors are respectively fixed within their corresponding connectors and interlocked to achieve electrical connection between the upper and lower antenna feeders. The lower connector has an upwardly protruding portion and a lower connector bushing is fitted inside. The upper connector has a downwardly concave portion and an upper connector bushing is fitted inside. The two form a plug-in fit, with the protruding portion and the concave portion forming an annular shielding gap, creating a labyrinthine water-blocking path. A sealing ring and a plug-in fixing component are provided between the upper and lower connectors, achieving a stable fit through axial clamping force. This structure maintains smoothness and wear resistance after repeated plugging and unplugging, significantly improving waterproof performance and connection stability. Furthermore, the upper and lower connectors are made of aluminum to meet lightweight requirements.

Description

Technical Field

[0001] This utility model relates to the field of antenna connection technology, specifically to a vehicle-mounted double-layer antenna connection structure and an ultra-shortwave antenna using this structure. Background Technology

[0002] Modern aviation communications can be categorized by the communication target into air-to-ground communications, air-to-air communications, and air-to-ground communications. Air-to-ground communications are used for command and guidance between the ground and aircraft, primarily operating in the VHF and UHF bands, and are considered line-of-sight communications with a typical communication distance of approximately 350 km. With the increasing application of mobile platforms (such as vehicle platforms) and the continuous growth in data communication demands, single-channel configurations are gradually evolving towards dual-channel and even quad-channel configurations.

[0003] In vehicle-mounted scenarios, to achieve dual channels and meet the isolation requirements between the two channels, a structure is typically adopted in which two antennas are staggered vertically and maintain a certain distance. While improving channel isolation, this arrangement also places higher demands on the mechanical connection and power supply connection between the upper and lower antennas: on the one hand, it needs to facilitate rapid assembly and disassembly under mobile deployment and maintenance conditions; on the other hand, it should ensure continuous electrical connection and stable structural connection to adapt to vehicle vibration, impact, and outdoor environment conditions.

[0004] Therefore, designing the connection and insertion structure between the upper and lower antennas, while considering both ease of installation and connection stability, has become a key technical issue for ensuring the reliable operation of vehicle-mounted dual-layer antennas. Based on this, proposing an insertion structure suitable for vehicle-mounted dual-layer antennas and its application in VHF antennas is of practical significance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a vehicle-mounted dual-layer antenna plug-in structure and an ultra-shortwave antenna using the structure. The ultra-shortwave antenna achieves the purpose of easy disassembly and assembly, stable connection, waterproofing and durability, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted dual-layer antenna connector structure and an ultra-shortwave antenna using this structure, comprising an upper connector, a lower connector, an upper feeder connector, and a lower feeder connector. The upper feeder connector is fixed in the upper connector, and the lower feeder connector is fixed in the lower connector. The upper and lower feeder connectors are interlocked, and the upper and lower antenna feeders are electrically connected through the upper and lower feeder connectors. The lower connector has an upwardly protruding portion, on which a lower connector bushing is fitted. The upper connector has a downwardly concave portion, on which an upper connector bushing is fitted. Both the upper and lower connector bushings are made of brass. Alternatively, titanium alloy can be used. The two parts are interlocked, and an annular blocking gap is formed between the protruding and concave parts to create a labyrinthine water-blocking path. Even if rainwater flows into the gap between the upper and lower connectors, the protruding parts prevent the rainwater from flowing into the interior of the protruding parts. A sealing ring is provided between the upper and lower connectors to further improve the waterproof performance. The surface is easily scratched during insertion and removal. After repeated insertion and removal, the surface roughness deteriorates, which can lead to poor insertion and removal. The upper and lower connector bushings can effectively solve this problem and improve the insertion stability. A connector fixing component is provided between the upper and lower connectors to achieve a tight fit between the upper and lower connectors.

[0007] Furthermore, the plug-in fastener includes a hand-tightening nut, a hinge base, and a hinge screw. Both the upper and lower plug-in connectors are provided with hinge screw slots for the hinge screw to pass through. The hinge base is fixed on the lower plug-in connector. The upper and lower plug-in connectors are fixedly connected by tightening the hand-tightening nut. The hinge screw passes radially through the hinge screw slot to generate an axial clamping force on the upper and lower plug-in connectors when tightened.

[0008] Furthermore, at least three of the plug-in fasteners are provided, and they are evenly distributed along the center of the plug-in connector.

[0009] Furthermore, the upper and lower connectors are made of aluminum, meeting the lightweight requirements of vehicle-mounted antennas.

[0010] Furthermore, it includes an upper antenna, a lower antenna, and a plug-in structure, wherein the upper feeder connector and the lower feeder connector of the plug-in structure are plugged in to form a power supply path.

[0011] Furthermore, the lower antenna has a feed line extension line inside, and the upper antenna has an upper antenna feed line inside. The upper antenna feed line is connected to the upper antenna feed line connector. The lower end of the lower antenna has a lower antenna feed line port and an upper antenna feed line port. One end of the feed line extension line is electrically connected to the lower antenna feed line connector, and the other end is led to the upper antenna feed line port to feed the upper antenna. The upper and lower antenna feed line connectors are plugged into each other to achieve the purpose of connecting the upper and lower antenna feed lines, and the upper antenna is led to the bottom of the lower antenna for connection with the equipment.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model adopts a plug-in connection method to achieve power supply connection between the upper and lower antennas, thereby ensuring the stability of the electrical connection. Compared with the existing method of connecting externally by extending the cable, this structure reduces additional connection points and avoids the risk of poor contact. At the same time, the lower plug is designed with an upward protruding part, and the upper plug is designed with a matching concave part. The two form an annular shielding gap, which constitutes a labyrinth-like water-blocking path. While ensuring reliable power supply, it significantly improves waterproof performance and can meet the requirements of long-term operation of vehicle-mounted equipment in complex outdoor environments.

[0014] 2. The use of embedded metal bushings ensures that the plug-in parts remain smooth and stable over a long period of time, effectively extending the plug-in life. At the same time, a plug-in fixing component is set between the upper and lower plug-in connectors. The combination design of hinged screw, hand-tightening nut and hinged base allows for quick locking and disassembly without tools, greatly improving the convenience of installation and maintenance. This design not only improves on-site operation efficiency, but also enhances the structure's anti-loosening performance under vehicle vibration conditions.

[0015] 3. This utility model significantly reduces the overall weight, meeting the lightweight requirements of vehicle-mounted antennas and helping to improve the mobility and load-bearing efficiency of the mobile platform. In addition, the feed line extension line is set inside the lower antenna, realizing unified power supply for the upper and lower antennas. This design avoids additional cable layout, simplifies the antenna system structure, reduces installation complexity, and ensures the continuity of power supply for the upper and lower antennas and the reliability of signal transmission. As a result, the overall antenna is significantly improved in terms of structural rationality and overall performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection structure between the upper and lower connectors of this utility model;

[0017] Figure 2 This is a schematic diagram of the upper connector structure of this utility model;

[0018] Figure 3 This is an isometric view of the connection between the upper and lower connectors of this utility model.

[0019] Figure 4 This is a schematic diagram of the overall structure of the ultra-shortwave antenna of this utility model;

[0020] Figure 5 This is a schematic diagram of the lower insertion connector structure of this utility model.

[0021] In the diagram: 1. Sealing ring, 2. Hinge screw slot, 3. Upper connector bushing, 4. Upper connector, 5. Upper feeder connector, 6. Feeder extension cable, 7. Lower feeder connector, 8. Lower connector, 9. Lower connector bushing, 10. Connecting fastener, 11. Upper antenna feeder, 12. Hand-tightening nut, 13. Hinge base, 14. Hinge screw, 15. Upper antenna, 16. Lower antenna, 17. Lower antenna feeder port, 18. Upper antenna feeder port. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0023] Please see Figure 1-5 This utility model provides a technical solution: a vehicle-mounted dual-layer antenna plug-in structure and an ultra-shortwave antenna using this structure, including an upper plug-in connector 4, a lower plug-in connector 8, an upper feeder plug-in connector 5, and a lower feeder plug-in connector 7. The upper feeder plug-in connector 5 is fixedly installed in the upper plug-in connector 4, and the lower feeder plug-in connector 7 is fixedly installed in the lower plug-in connector 8. The two cooperate with each other to form an electrical connection when plugged in, thereby realizing the power supply connection between the upper and lower antennas. To improve the reliability of use, the lower plug-in connector 8 has an upwardly protruding part, and a lower plug-in connector bushing 9 is embedded in the protruding part; the upper plug-in connector 4 has a downwardly concave part, and an upper plug-in connector bushing 3 is embedded in the concave part; the upper plug-in connector bushing 3 and the lower plug-in connector 8 are connected by a lower plug-in connector 9. The connector bushing 9 is preferably made of brass or titanium alloy, and the two materials fit together to ensure smooth insertion and removal as well as wear resistance. The annular blocking gap between the protruding part and the concave part forms a labyrinthine water-blocking path, so that even if rainwater enters the gap between the upper and lower connectors 4 and 8, it cannot seep into the insertion part. At the same time, a sealing ring 1 is provided between the upper and lower connectors to further improve the waterproof performance. Since the surface is easily scratched during repeated insertion and removal, resulting in roughness deterioration and problems with smooth insertion and removal, the metal bushing can effectively reduce the risk of wear and maintain stable insertion performance. A plug-in fixing element is provided between the upper and lower connectors to ensure stable connection through compression.

[0024] The plug-in fastener includes a hand-tightening nut 12, a hinge base 13, and a hinge screw 14. Both the upper plug-in connector 4 and the lower plug-in connector 8 are provided with hinge screw slots 2 for the hinge screw 14 to pass through. The hinge base 13 is fixed on the lower plug-in connector 8. The hinge screw 14 passes radially through the hinge screw slot 2 and is tightened by the hand-tightening nut 12, thereby generating an axial clamping force on the upper and lower plug-in connectors in the tightened state to achieve reliable locking. To ensure balanced force, at least three plug-in fasteners are provided and evenly distributed along the center of the plug-in connector. This design allows the upper and lower plug-in connectors to maintain a stable fit under vibration, impact, and other conditions, preventing loosening. To further meet the requirements of lightweight design, the upper plug-in connector 4 and the lower plug-in connector 8 are preferably made of aluminum, which can reduce the overall weight and meet the strength and corrosion resistance requirements of the vehicle antenna for long-term use.

[0025] Based on the above-mentioned plug-in structure, an ultra-shortwave antenna can also be assembled. This antenna includes an upper antenna 15 and a lower antenna 16. The upper feeder connector 5 and the lower feeder connector 7 are plugged into each other to form a feeding path, realizing effective signal transmission. A feeder extension line 6 is set inside the lower antenna 16, and an upper antenna feeder 11 is set inside the upper antenna 15. The upper antenna feeder 11 is connected to the upper feeder connector 5. The lower end of the lower antenna 16 has a lower antenna feeder port 17 and an upper antenna feeder port 18. One end of the feeder extension line 6 is electrically connected to the lower feeder connector 7, and the other end is led to the upper antenna feeder port 18, thereby providing a stable feed for the upper antenna 15. Through the layout of this internal feeder extension line, the feed signal of the upper antenna is led to the bottom of the lower antenna and connected to the equipment, avoiding additional external wiring. This not only simplifies the antenna system structure but also significantly reduces the number of connection points, improves the convenience of installation and maintenance, and ensures the continuity and reliability of the upper and lower antenna feeds.

[0026] Through the above design, the plug-in structure takes into account the requirements of electrical connection stability, structural reliability, waterproof performance and lightweight, and can effectively adapt to vibration, shock and outdoor environmental changes in vehicle scenarios, ensuring the performance stability and service life of the dual-layer antenna in long-term operation.

[0027] The working principle of this plug-in structure is to complete the electrical connection through the direct plugging of the upper feeder plug 5 and the lower feeder plug 7, avoiding the complex arrangement of external extension cables, reducing the number of connection points, and lowering the risk of poor contact. At the same time, the clamping action of the hinge screw 14 and the hand-tightening nut 12 keeps the upper and lower plugs in a stable axial fit, and the multi-point distribution of fixing parts ensures balanced force, thereby enhancing vibration resistance and connection reliability. In terms of protection, the protrusion of the lower plug 8 and the concave part of the upper plug 4 form an annular shielding gap, which constitutes a labyrinthine water-blocking path. Even if rainwater enters the gap, it cannot penetrate into the interior. Combined with the sealing ring 1, it can significantly improve the waterproof effect. Meanwhile, the bushings 3 and 9 are made of metal, which effectively prevents wear and roughness deterioration caused by repeated plugging and unplugging, thereby maintaining smooth plugging and extending service life. The overall structure achieves a comprehensive effect of stable electrical connection, reliable waterproofing, lightweight and durability.

[0028] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A vehicle-mounted dual-layer antenna connector structure, comprising an upper connector (4), a lower connector (8), an upper feeder connector (5), and a lower feeder connector (7), characterized in that: The upper feeder connector (5) is fixed in the upper connector (4), and the lower feeder connector (7) is fixed in the lower connector (8). The upper feeder connector (5) and the lower feeder connector (7) are plugged into each other. The lower connector (8) has an upward protrusion, on which the lower connector bushing (9) is installed. The upper connector (4) has a downward concave part, on which the upper connector bushing (3) is installed. The upper connector bushing (3) and the lower connector bushing (9) are made of brass or titanium alloy and are plugged into each other. A sealing ring (1) is provided between the upper connector (4) and the lower connector (8). A plug-in fixing member is provided between the upper connector (4) and the lower connector (8).

2. The vehicle-mounted dual-layer antenna plug-in structure according to claim 1, characterized in that: The plug-in fastener includes a hand-tightening nut (12), a hinge base (13), and a hinge screw (14). Both the upper plug-in connector (4) and the lower plug-in connector (8) are provided with hinge screw slots (2) for the hinge screw (14) to pass through. The hinge base (13) is fixed on the lower plug-in connector (8). The upper plug-in connector (4) and the lower plug-in connector (8) are fixedly connected by tightening the hand-tightening nut (12).

3. The vehicle-mounted dual-layer antenna plug-in structure according to claim 2, characterized in that: At least three plug-in fasteners are provided, and they are evenly distributed along the center of the plug-in connector.

4. The vehicle-mounted dual-layer antenna plug-in structure according to claim 1, characterized in that: The upper connector (4) and the lower connector (8) are made of aluminum.

5. An ultra-shortwave antenna, characterized in that: Includes an upper antenna (15), a lower antenna (16), and a plug-in structure as described in any one of claims 1-4, wherein the upper feeder connector (5) and the lower feeder connector (7) of the plug-in structure are plugged in to form a power supply path.

6. The ultra-shortwave antenna according to claim 5, characterized in that: The lower antenna (16) is provided with a feed line extension line (6), and the upper antenna (15) is provided with an upper antenna feed line (11). The upper antenna feed line (11) is connected to the upper feed line connector. The lower end of the lower antenna (16) is provided with a lower antenna feed line port (17) and an upper antenna feed line port (18). One end of the feed line extension line (6) is electrically connected to the lower feed line connector (7), and the other end is led to the upper antenna feed line port (18).

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