Long-wave vehicle-mounted communication antenna

Abstract

The utility model discloses a long-wave vehicle-mounted communication antenna, and belongs to the technical field of electronic communication. The technical problem that an existing long-wave communication antenna is large in structure and cannot be adaptively used on a vehicle is solved. The antenna is characterized by comprising an antenna oscillator, a joint and an outer cover, one end of the connector is connected with the antenna oscillator, the other end of the connector is fixed to the outer cover in a screwed mode, a coil is wound in the outer cover, the coil is matched with impedance, the bottom of the outer cover is provided with a magnetic attraction base used for being fixed to a vehicle, one side of the outer cover is connected with the feeder line, the feeder line is used for being connected with the UHF connector, and the magnetic attraction base is adopted so that installation can be more convenient. The coil is wound in the outer cover, and the coil is matched with 50 ohm impedance, so that the standing wave (SWR) is smaller, the loss is reduced, and the heating effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electronic communication, in particular to a long-wave vehicle-mounted communication antenna. BACKGROUND

[0002] At present, the antenna lifting rod for preventing cable scattering of a field long-wave communication antenna is disclosed (announced) in No. CN215008540U; a frame is fixed at the middle part of the top end of a base; an electric lifting rod is arranged at the middle part of the frame and is connected with the base; the electric lifting rod is fixed with a limiting block on the outer side; a first connecting seat is installed on the top of the base and is distributed at equal angles with the base; a guide wheel is arranged on the outer side of the frame to guide the antenna.

[0003] Therefore, the existing long-wave communication antenna structure is large and cannot be matched on a vehicle for use. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems and shortcomings: how to match the long-wave communication antenna on the vehicle to form a stable and reliable vehicle-mounted communication antenna, the application provides a long-wave vehicle-mounted communication antenna.

[0005] In order to achieve the above object and other related objects, the application adopts the following technical scheme:

[0006] A long-wave vehicle-mounted communication antenna comprises an antenna oscillator, a joint and an outer cover.

[0007] One end of the joint is connected with the antenna oscillator, and the other end is fixed with the outer cover through screwing,

[0008] A coil is arranged in the outer cover, the coil is matched with impedance, a magnetic suction base for fixing on the vehicle is arranged at the bottom of the outer cover, one side of the outer cover is connected with a feeder, and the feeder is used for connecting a UHF joint.

[0009] Preferably, the joint adopts a model of MJ3 / 8 inch-24, a nominal diameter of 3 / 8 inch, 24 teeth per inch and a fine thread.

[0010] Preferably, the outer cover is made of ABS material.

[0011] Preferably, the impedance is 50 omega.

[0012] Preferably, the antenna oscillator has a cap part, a main wire part and a connecting part, the cap part is made of copper-nickel alloy, and the connecting part is made of copper-chromium alloy.

[0013] Preferably, the end cap part of the antenna element has a diameter of 6±0.2mm, the height of the end cap part is 9.8±0.3mm, the length of the connecting part is 32±0.6mm, and the total length of the antenna element is 693±10mm.

[0014] In summary, the present application has at least one of the following technical effects:

[0015] 1. The magnetic base is adopted, and installation is more convenient.

[0016] 2. The coil is arranged in the cover, the coil matches the 50Ω impedance, the standing wave (SWR) can be smaller, and loss and heating can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure diagram of an antenna element of an embodiment of the present application;

[0018] Figure 2 is a structure diagram of a cover of an embodiment of the present application.

[0019] Explanation of reference numerals of main components:

[0020] 1. Antenna element; 11. End cap part; 12. Main wire part; 13. Connecting part; 2. Connector; 3. Cover; 4. Feeder. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present specification. The present application can also be implemented or applied through other different concrete embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present application, and the diagrams only show the components related to the present application, not the number, shape and size of the components when actually implemented. The shape, number and ratio of each component can be changed at will when actually implemented, and the layout pattern of the components can also be more complex.

[0023] The specific embodiments of the present application are further described below with reference to the accompanying drawings.

[0024] Embodiment:

[0025] An embodiment of the present application discloses a long-wave vehicle-mounted communication antenna, referring to Figure 1 and Figure 2As shown, it comprises an antenna vibrator 1, a connector 2 and a cover 3.

[0026] The connector 2 is connected to the antenna vibrator 1 at one end and is screwed to the cover 3 at the other end. Preferably, the model of the connector 2 is MJ3 / 8 inch-24, nominal diameter: 3 / 8 inch, number of teeth per inch: 24, fine thread. The thread specification is 24 teeth per inch to ensure the tightness and reliability of the connection. The function of fine thread is good self-locking: the pitch of fine thread is smaller, and the thread angle is small, which makes its self-locking performance better than that of coarse thread, which can effectively prevent loosening caused by vibration or impact. Good sealing effect: because the number of teeth of fine thread is more, the thread contact area is larger in the same length, so it has better sealing and leakage prevention ability, so it is more suitable for outdoor and application on vehicle. Suitable for thin-walled parts: the tooth height of fine thread is shorter, which is suitable for thin-walled parts, and can provide reliable connection in limited space. Reduce stress concentration: the pitch of fine thread is smaller, so that the force of each circle of thread is more uniform during tightening, reducing the phenomenon of stress concentration, which helps to improve the reliability of the connection and prolong the service life.

[0027] A coil is wound in the cover 3, and the coil is matched with an impedance, preferably 50Ω. The coil is wound in the cover 3, and the coil is matched with 50Ω impedance, which can make the standing wave (SWR) smaller and reduce the loss and heat.

[0028] The bottom of the cover 3 is provided with a magnetic base for fixing on the vehicle, and the magnetic base is adopted to make the installation more convenient.

[0029] One side of the cover 3 is connected with a feeder 4, and the feeder 4 is used to connect the UHF connector 2. The cover 3 is made of ABS material. ABS material has high strength and rigidity, and can withstand certain pressure and impact force. ABS material has certain insulation performance and can be used to manufacture insulation parts of electrical products. ABS material has strong wear resistance and can be used to manufacture products that need to withstand friction.

[0030] Preferably, the antenna element 1 has an end cap portion 11, a main wire portion 12 and a connecting portion 13. The end cap portion 11 is made of copper-nickel alloy, and the connecting portion 13 is made of copper-chromium alloy. The copper-nickel alloy has excellent electrical conductivity, which can effectively transmit electromagnetic signals and improve the signal transmission efficiency of the antenna. Although the electrical conductivity of copper is better than that of aluminum, the copper-nickel alloy achieves a good balance between electrical conductivity and corrosion resistance. The copper-nickel alloy has excellent corrosion resistance, which can resist corrosion in harsh environments such as seawater and chemicals. This feature makes the copper-nickel alloy have a significant advantage in the application of outdoor antennas or marine environments, prolonging the service life of the antenna. The copper-nickel alloy has high strength and toughness, which can maintain stability under various environmental conditions and withstand mechanical stress. This feature makes the copper-nickel alloy suitable for manufacturing antenna structural components that need to withstand external forces or impacts, ensuring the reliability and stability of the antenna. The copper-chromium alloy has high electrical conductivity, which can effectively transmit electromagnetic signals and improve the signal transmission efficiency of the antenna. The electrical conductivity of copper is about 100% IACS, while the copper-chromium alloy maintains high electrical conductivity while also improving its hardness and wear resistance by adding chromium elements.

[0031] The diameter of the end cap portion 11 of the antenna element 1 is 6±0.2mm, the height of the end cap portion 11 is 9.8±0.3mm, the length of the connecting portion 13 is 32±0.6mm, and the total length of the antenna element 1 is 693±10mm.

[0032] Through the design of the above structure size, the frequency range of the antenna is 26MHz-30MHz. The maximum power can reach 1000W.

[0033] The above examples only illustrate the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art can modify or change the above examples without departing from the spirit and scope of the present invention. Therefore, any equivalent changes made to the structure, shape, principle of the present invention shall be covered within the scope of protection of the present invention.

Claims

1. A long-wave vehicle-mounted communication antenna, characterized in that, It includes an antenna element (1), a connector (2), and an outer casing (3); One end of the connector (2) is connected to the antenna vibrator (1), and the other end is screwed to the outer cover (3). The outer cover (3) is equipped with a coil, which is matched with an impedance. The bottom of the outer cover (3) is provided with a magnetic base for fixing it on the vehicle. One side of the outer cover (3) is connected to a feeder (4), which is used to connect to a UHF connector (2).

2. The long-wave vehicle-mounted communication antenna according to claim 1, characterized in that, The connector (2) is of model MJ3 / 8 inch-24, with a nominal diameter of 3 / 8 inch, 24 threads per inch, and fine thread.

3. A long-wave vehicle-mounted communication antenna according to claim 1, characterized in that, The outer cover (3) is made of ABS material.

4. A long-wave vehicle-mounted communication antenna according to claim 1, characterized in that, The impedance is 50Ω.

5. A long-wave vehicle-mounted communication antenna according to claim 1, characterized in that, The antenna vibrator (1) has an end cap (11), a main line (12) and a connecting part (13). The end cap (11) is made of copper-nickel alloy and the connecting part (13) is made of copper-chromium alloy.

6. A long-wave vehicle-mounted communication antenna according to claim 5, characterized in that, The diameter of the end cap (11) of the antenna element (1) is 6±0.2mm, the height of the end cap (11) is 9.8±0.3mm, the length of the connecting part (13) is 32±0.6mm, and the total length of the antenna element (1) is 693±10mm.

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