Meteorological radar antenna unit

Abstract

The utility model discloses a meteorological radar antenna unit, comprising a cavity and a cover plate, the middle part of the cavity is provided with a vertically arranged clamping plate, the cover plate is fixedly installed at the bottom of the cavity, and the cover plate is provided with a clamping groove corresponding to the position of the clamping plate; compared with the prior art, the structure of the cavity, the cover plate, the first inserting groove, the second inserting groove, the inserting plate, the clamping plate and the clamping groove is matched, so that the stability of the functional cavity can be well provided; the cavity and the cover plate are made of high-temperature-resistant and high-fluidity polymer materials, particularly high-strength 30% glass fiber reinforced flame-retardant poly (p-phenylene terephthamide) materials, the requirements of injection molding conditions can be lowered through the materials, injection molding products can release smaller internal gravity, better flatness is obtained, and compared with common plastic metallization materials or metal materials such as PPS, LCP and PEEK, the injection molding products have the advantages that the injection molding products are not prone to falling off, and the service life of the injection molding products is prolonged. Good coating smoothness and adhesive force can be obtained by using a general water plating mode, and a product with high reliability and high performance is obtained by using a low-cost processing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a weather radar antenna unit. Background Art

[0002] Meteorological radar is a radar specially used for atmospheric detection. It is one of the main detection tools used to warn and forecast medium and small scale weather systems. The radar antenna is used to transmit / receive signals for detecting surrounding objects.

[0003] At present, traditional weather radar antennas are generally made of metal, which has the disadvantages of heavy weight and high manufacturing cost. Therefore, low-cost, high-performance civilian weather radars have become an inevitable trend in the development of the industry. Communication antenna products based on plastic metallization technology have been widely used in civilian base stations. It is necessary to apply this low-cost and reliable technology to the field of weather radar. For this reason, the utility model proposes a weather radar antenna unit. Utility Model Content

[0004] The purpose of the utility model is to provide a weather radar antenna unit to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a weather radar antenna unit, comprising a cavity and a cover plate, a vertically arranged card plate is provided in the middle of the cavity, the cover plate is fixedly installed at the bottom of the cavity, a card slot corresponding to the position of the card plate is opened on the cover plate, and the card slot is arranged in a straight line, the cover plate comprises a vertically arranged plug plate and a horizontally arranged bottom plate, a first slot and a second slot corresponding to the position of the plug plate are respectively opened on both sides of the inner surface of the cavity, and a first polarized antenna feed port and a second polarized antenna feed port are also fixedly installed on the cavity.

[0006] As a preferred technical solution of the utility model, a first feeding slot and a second feeding slot corresponding to the positions of the first polarized antenna feeding port and the second polarized antenna feeding port are respectively provided on the bottom plate of the cover plate.

[0007] As a preferred technical solution of the utility model, positioning pins are fixedly installed on the lower surface of the bottom plate, and the number of the positioning pins is at least two.

[0008] As a preferred technical solution of the utility model, a mounting hole is provided on the lower surface of the base plate.

[0009] As a preferred technical solution of the utility model, the mounting hole is a threaded hole.

[0010] As a preferred technical solution of the utility model, the first polarized antenna feed port and the second polarized antenna feed port are respectively distributed on two sides of the card board.

[0011] As a preferred technical solution of the present utility model, the first polarized antenna feed port and the second polarized antenna feed port are both made of metal.

[0012] As a preferred technical solution of the utility model, the outer surfaces of the cavity and the cover plate are both provided with a coating.

[0013] As a preferred technical solution of the utility model, the cavity and the cover plate are both made of high-strength 30% glass fiber reinforced flame-retardant polydecane terephthalamide material.

[0014] As a preferred technical solution of the present invention, the thermal deformation temperature of the cavity and the cover plate is greater than 270°C.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model discloses a weather radar antenna unit, which can provide good functional cavity stability by utilizing the structural coordination of a cavity, a cover plate, a first slot, a second slot, an insert plate, a card plate and a card slot; the cavity and the cover plate adopt a high-temperature resistant and high-fluidity polymer material, specifically a high-strength 30% glass fiber reinforced flame-retardant polydecane terephthalamide material, which can reduce the requirements of injection molding conditions, release a smaller internal gravity of the injection molded product, and obtain better flatness; compared with commonly used plastic metallized materials or metal materials such as PPS, LCP, PEEK, etc., the material made of the material can obtain good coating finish and adhesion by using a general water plating method, and obtain a high reliability and high performance product by using a low-cost processing method.

[0017] Other features and advantages of the present invention will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an explosion diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the cavity of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the cover plate of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the bottom plate of the utility model;

[0023] In the figure: 1, cavity; 2, cover plate; 11, first slot; 12, second slot; 13, first polarized antenna feed port; 14, second polarized antenna feed port; 15, card board; 21, plug board; 22, bottom plate; 23, first feed slot; 24, second feed slot; 25, mounting hole; 26, positioning pin; 27, card slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-5In this embodiment, a weather radar antenna unit is provided, including a cavity 1 and a cover plate 2. A vertically arranged card plate 15 is provided in the middle of the cavity 1. The cover plate 2 is fixedly installed at the bottom of the cavity 1. A card slot 27 corresponding to the position of the card plate 15 is provided on the cover plate 2, and the card slot 27 is arranged in a straight line. The cover plate 2 includes a vertically arranged plug plate 21 and a horizontally arranged bottom plate 22. The inner surface of the cavity 1 is provided with a first slot 11 and a second slot 12 corresponding to the position of the plug plate 21 at both sides. The cavity 1 is also fixedly installed with a card slot 27 corresponding to the position of the plug plate 21. There is a first polarized antenna feed port 13 and a second polarized antenna feed port 14. The bottom plate 22 of the cover plate 2 is provided with a first feeding slot 23 and a second feeding slot 24 corresponding to the positions of the first polarized antenna feed port 13 and the second polarized antenna feed port 14, respectively. The first polarized antenna feed port 13 and the second polarized antenna feed port 14 are respectively distributed on both sides of the card plate 15. The first polarized antenna feed port 13 and the second polarized antenna feed port 14 are made of metal. Specifically, the first polarized antenna feed port 13 and the second polarized antenna feed port 14 are The electrical port 14 is made of brass, the cavity 1 and the cover plate 2 are made of high-strength 30% glass fiber reinforced flame-retardant polydecane terephthalamide, the lower surface of the bottom plate 22 is fixedly mounted with a positioning pin 26, and the number of the positioning pins 26 is at least two, and the lower surface of the bottom plate 22 is provided with a mounting hole 25, which is a threaded hole. The structure of the cavity 1, the cover plate 2, the first slot 11, the second slot 12, the plug plate 21, the card plate 15 and the card slot 27 can provide good functional cavity stability; the cavity 1 and the cover plate 2 are made of high temperature resistant and High-flow polymer material (modified PA10T), specifically high-strength 30% glass fiber reinforced flame-retardant polydecane terephthalamide material, can reduce the requirements for injection molding conditions, release smaller internal gravity of injection molded products, and obtain better flatness. Compared with commonly used plastic metallized materials or metal materials such as PPS, LCP, PEEK, etc., materials made of this material can obtain good coating finish and adhesion using a general water plating method, and obtain high reliability and high-performance products using a low-cost processing method.

[0028] It should be noted that the antenna unit in this embodiment adopts the form of cavity 1 plus cover plate 2, the overall functional cavity is made into one piece, and the mold is injection molded to maintain the stability of the functional cavity; the cavity 1 and the cover plate 2 are provided with a slot 27 and a card plate 15, which play an assembly guide role and also have a corrective role; the slot 27 of the cover plate 2 is made into a clearance match with the cavity 1, and an assembly fixture is used to ensure the precise positioning of the communication interface; an appropriate amount of solder paste is applied to the side wall of the cover plate 2 and the bottom surface of the slot 27, and the upper and lower cover plates 2 are fixed together through a reflow soldering furnace to achieve reliable mechanical and electrical connections. The material uses high-strength 30% glass fiber reinforced flame-retardant polyterephthalamide, and the modified PA10T improves the fluidity of the material and reaches the level of LCP material. The heat deformation temperature of the cavity 1 and the cover plate 2 is greater than 270°C, which meets the requirements of high-temperature reflow soldering. The outer surfaces of the cavity 1 and the cover plate 2 are both provided with a coating, specifically, a water plating process is adopted, the coating is Cu8Ni3, and the surface roughness Ra <1μm.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A weather radar antenna unit, characterized in that: The invention comprises a cavity (1) and a cover plate (2), wherein a vertically arranged card plate (15) is provided in the middle of the cavity (1), the cover plate (2) is fixedly mounted on the bottom of the cavity (1), a card slot (27) corresponding to the position of the card plate (15) is provided on the cover plate (2), and the card slot (27) is arranged in a straight line, the cover plate (2) comprises a vertically arranged plug plate (21) and a horizontally arranged bottom plate (22), a first slot (11) and a second slot (12) corresponding to the position of the plug plate (21) are respectively provided on both sides of the inner surface of the cavity (1), and a first polarized antenna feed port (13) and a second polarized antenna feed port (14) are also fixedly mounted on the cavity (1).

2. A weather radar antenna unit according to claim 1, characterized in that: A first feeding slot (23) and a second feeding slot (24) corresponding to the positions of the first polarized antenna feeding port (13) and the second polarized antenna feeding port (14) are provided on the bottom plate (22) of the cover plate (2).

3. A weather radar antenna unit according to claim 1, characterized in that: Positioning pins (26) are fixedly mounted on the lower surface of the bottom plate (22), and the number of the positioning pins (26) is at least two.

4. A weather radar antenna unit according to claim 1, characterized in that: The lower surface of the bottom plate (22) is provided with a mounting hole (25).

5. A weather radar antenna unit according to claim 4, characterized in that: The mounting hole (25) is a threaded hole.

6. A weather radar antenna unit according to claim 1, characterized in that: The first polarized antenna feed port (13) and the second polarized antenna feed port (14) are respectively distributed on two sides of the card board (15).

7. A weather radar antenna unit according to claim 1, characterized in that: The first polarized antenna feed port (13) and the second polarized antenna feed port (14) are both made of metal.

8. A weather radar antenna unit according to claim 1, characterized in that: The outer surfaces of the cavity (1) and the cover plate (2) are both provided with a coating.

9. A weather radar antenna unit according to claim 1, characterized in that: The cavity (1) and the cover plate (2) are both made of high-strength 30% glass fiber reinforced flame-retardant polydecane terephthalamide material.

10. A weather radar antenna unit according to claim 9, characterized in that: The thermal deformation temperature of the cavity (1) and the cover plate (2) is greater than 270°C.

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