Antenna device

Abstract

The utility model provides an antenna device, which comprises an antenna, an antenna cover, a connector and a flat head rivet, and is characterized in that the antenna cover is attached to the outer side of the antenna; a bonding pad of a feed hole of the antenna is positioned on the outer side of the antenna; the flush head rivet comprises a head part and a rod part which are integrally arranged, and the head part is arranged on a bonding pad of a feed hole of the antenna and located between the antenna housing and the antenna; and the rod part passes through the feed hole and is connected with the connector. According to the utility model, the connection between the antenna and the connector is realized through the flush head rivet, so that the connector of the connector does not pass through the feed hole of the antenna from the inner side of the antenna to be exposed out of the outer side surface of the antenna, and the connector of the connector does not need to be trimmed. According to the utility model, only the head part of the flat head rivet is arranged between the antenna housing and the antenna, so that the thickness of the head part of the flat head rivet can be controlled within a reasonable numerical value, thereby realizing the tight attachment of the antenna housing and the antenna, avoiding the generation of a gap between the antenna housing and the antenna, and achieving the purpose of protecting the antenna.

Description

Technical Field

[0001] The utility model relates to the field of antenna technology, and in particular to an antenna device. Background Technology

[0002] For antennas exposed in special environments (such as high salt, high humidity, etc.), please refer to Figure 1 , for example, the antenna 1 on the carrier 4 in the aerospace field, such as missiles and rockets, is exposed outside the shell. Due to being in a special environment for a long time, it is easy to be corroded or scratched, and the risk of antenna failure due to aerodynamic heating during flight. Therefore, a radome 2 needs to be set outside the antenna 1 for protection, including protecting the antenna in daily operation, isolating the erosion of the special external environment, and isolating the adverse effects of aerodynamic heating on the antenna. The current practice is to first pass the connector head 301 from the inside of the antenna 1 through the feed hole of the antenna 1 to the outside of the antenna 1, and fix the connector head 301 with the pad of the feed hole by welding to achieve the transmission of the antenna 1 signal into the projectile; and then fix the antenna 1 and the radome 2 on the projectile by screws or other fixing methods. If the connector head 301 is exposed too much on the outer surface of the antenna 1, there will be a large gap between the antenna 1 and the radome 2, which will affect the fit between the radome 2 and the antenna 1, and then there is a risk that the radome 2 cannot protect the antenna 1. If too little of the connector 301 is exposed from the outer surface of the antenna 1, there is a risk of poor soldering or desoldering between the connector 301 and the pad of the antenna 1. Therefore, the current practice is to allow the connector 301 to significantly extend from the outer surface of the antenna 1. After the connector 301 and the pad of the antenna 1 are soldered, the portion of the connector 301 exposed from the outer surface of the antenna 1 is cut off, and it is cut as flush with the outer surface of the antenna 1 as possible. However, the pad is easily damaged in the process of cutting the excess portion of the connector 301. In order to prevent damage to the pad during the process of cutting the connector 301, it is not possible to cut close to the surface of the pad. The connector 301 needs to be exposed to a certain length from the outer surface of the pad, but this length is difficult to control manually. If it is too long, it will affect the fit between the antenna cover 2 and the antenna 1, and if it is too short, it will damage the pad. Contents of utility model

[0003] In order to solve the above technical problems, the utility model provides an antenna device, including an antenna, an antenna cover, a connector and a flat head rivet, wherein the antenna cover is attached to the outside of the antenna; the pad of the feed hole of the antenna is located on the outside of the antenna; the flat head rivet includes a head and a rod that are integrally arranged, wherein the head is arranged on the pad of the feed hole of the antenna and is located between the antenna cover and the antenna; the rod passes through the feed hole and is connected to the connector.

[0004] Preferably, the antenna includes a substrate, an antenna body, and the feeding hole. The antenna body is disposed on the front surface of the substrate. The feeding hole penetrates through the substrate, and the pad of the feeding hole is located on the front surface of the substrate and surrounds the outer periphery of the feeding hole. The radome fits on the front surface of the substrate and fits the antenna body and the head portion.

[0005] Preferably, the connector includes a connecting head. A connecting hole for accommodating the connecting head is provided in the rod portion, and the connecting head is fixed in the connecting hole.

[0006] Preferably, the connecting head is fixed in the connecting hole by conductive silver paste.

[0007] Preferably, the connecting head is threadedly connected to the connecting hole.

[0008] Preferably, the connecting head is snap-connected to the connecting hole.

[0009] Preferably, the head portion is fixed on the pad of the feeding hole by welding or bonding with conductive paste.

[0010] Preferably, the radome fits the shape of the antenna.

[0011] Preferably, the radome and the antenna are fixedly connected by threaded fasteners.

[0012] Preferably, the radome is made of quartz-reinforced organic matter or ceramic.

[0013] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0014] In the present invention, the head portion of the flat head rivet fits on the pad outside the antenna, and the rod portion of the flat head rivet passes through the feeding hole to be connected to the connector, so as to realize the connection between the antenna and the connector. Therefore, the connecting head of the connector no longer passes through the feeding hole of the antenna from the inside of the antenna to the outside of the antenna, and further the connecting head will not expose the outer surface of the antenna, so there is no need to trim the connecting head anymore. In the present invention, since only the head portion of the flat head rivet is provided between the radome and the antenna, the thickness of the head portion of the flat head rivet can be controlled within a reasonable value, so as to realize the tight fit between the radome and the antenna, avoid generating a gap between the radome and the antenna, and achieve the purpose of protecting the antenna. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a schematic structural diagram of an antenna device provided by the prior art;

[0017] Figure 2 is a schematic structural diagram of an antenna device provided by an embodiment of the present invention;

[0018] Figure 3 is Figure 2 an enlarged view of part A in

[0019] Figure 4 is a schematic structural diagram of an antenna provided by an embodiment of the present invention;

[0020] Figure 5 is a schematic structural diagram of a flat head rivet provided by an embodiment of the present invention;

[0021] Explanation of reference numerals:

[0022] 1--antenna;

[0023] 101--substrate;

[0024] 102--antenna body;

[0025] 103--feeding hole;

[0026] 104--pad;

[0027] 2--antenna cover;

[0028] 3--connector;

[0029] 301--connector head;

[0030] 4--carrier;

[0031] 5--flat head rivet;

[0032] 501--head;

[0033] 502--shaft;

[0034] 5021--connection hole. Detailed implementation manners

[0035] As described in the background art, the radome covers the outside of the antenna, and the connector head of the connector passes through the feeding hole of the antenna from the inside of the antenna to the outside of the antenna. If the connector head exposes too much outside the outer surface of the antenna, there will be a large gap between the antenna and the radome, affecting the fitting degree between the radome and the antenna, and further causing the radome to be unable to protect the antenna. Therefore, it is necessary to cut off the part of the connector head that exposes outside the outer surface of the antenna and try to cut it flush with the outer surface of the antenna. However, the pad is easily damaged during the process of cutting the connector head. In order to prevent damage to the pad during the process of cutting the connector head, therefore, it is not possible to cut close to the surface of the pad. It is necessary to expose a certain length of the connector head outside the outer surface of the pad, but this length is very difficult to control manually, which may result in being too long and affecting the fitting degree between the radome and the antenna, or being too short and damaging the pad.

[0036] To solve the above problems, the present utility model provides an antenna device, including an antenna, a radome, a connector and a flat head rivet. The radome fits on the outside of the antenna; the pad of the feeding hole of the antenna is located on the outside of the antenna; the flat head rivet includes a head and a rod part integrally provided. The head is arranged on the pad of the feeding hole of the antenna and is located between the radome and the antenna; the rod part passes through the feeding hole and is connected to the connector.

[0037] In the present utility model, the head of the flat head rivet fits on the pad outside the antenna, and the rod part of the flat head rivet passes through the feeding hole and is connected to the connector to realize the connection between the antenna and the connector. Therefore, the connector head no longer passes through the feeding hole of the antenna from the inside of the antenna to the outside of the antenna, and further the connector head will not expose outside the outer surface of the antenna, so there is no need to trim the connector head anymore. In the present utility model, since only the head of the flat head rivet is provided between the radome and the antenna, the thickness of the head of the flat head rivet can be controlled within a reasonable value to realize the tight fitting between the radome and the antenna, avoid generating a gap between the radome and the antenna, and achieve the purpose of protecting the antenna.

[0038] To make the above objects, features and beneficial effects of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] Please refer to Figures 2 to 4, this embodiment provides an antenna device, including an antenna 1, an antenna cover 2, a connector 3 and a flat head rivet 5. The antenna cover 2 is attached to the outside of the antenna 1; the pad 104 of the feed hole 103 of the antenna 1 is located on the outside of the antenna 1; the flat head rivet 5 includes a head 501 and a rod portion 502 integrally provided. The head 501 is disposed on the pad 104 of the feed hole 103 of the antenna 1 and is located between the antenna cover 2 and the antenna 1; the rod portion 502 passes through the feed hole 103 and is connected to the connector 3 inside the antenna 1. In this embodiment, the head 501 of the flat head rivet 5 is attached to the pad 104 on the outside of the antenna 1, and the rod portion 502 of the flat head rivet 5 passes through the feed hole 103 and is connected to the connector 3 to realize the connection between the antenna 1 and the connector 3. Therefore, the connection head 301 of the connector 3 no longer passes through the feed hole 103 of the antenna 1 from the inside of the antenna 1 to the outside of the antenna 1, and further, the connection head 301 will not expose the outer surface of the antenna 1, so there is no need to trim the connection head 301 anymore. In this embodiment, since only the head 501 of the flat head rivet 5 is provided between the antenna cover 2 and the antenna 1, the thickness of the head 501 of the flat head rivet 5 can be controlled within a reasonable value to achieve a tight fit between the antenna cover 2 and the antenna 1, avoid generating a gap between the antenna cover 2 and the antenna 1, and achieve the purpose of protecting the antenna 1.

[0040] Further, the antenna 1 includes a substrate 101, an antenna body 102 and a feed hole 103. The antenna body 102 is disposed on the front surface of the substrate 101. After the antenna is installed on the carrier 4, the front surface of the substrate 101 is the outside of the antenna 1, that is, the side facing away from the carrier 4; the side facing the carrier 4 is the inside of the antenna 1, and the inside of the antenna 1 is installed on the carrier 4. The feed hole 103 penetrates through the substrate 101, and the pad 104 of the feed hole 103 is located on the front surface of the substrate 101 and surrounds the outer periphery of the feed hole 103.

[0041] Since the flat head rivet 5 is made of a metal material and has good electrical conductivity, the electrical connection between the pad and the connector can be realized.

[0042] This embodiment does not limit the connection method between the head 501 of the flat head rivet 5 and the pad 104. Since the antenna cover 2 is tightly attached to the outside of the antenna 1 and is fixedly arranged with the antenna 1, even if the head 501 of the flat head rivet 5 is directly attached to the pad 104, no falling-off phenomenon will occur. Therefore, the head 501 of the flat head rivet 5 can be directly attached to the pad 104. Of course, this embodiment is not limited to this. The head 501 of the flat head rivet 5 can also be fixed to the pad 104 by welding or bonding with conductive adhesive, etc.

[0043] The connector 3 includes a connector head 301 which is a needle-like structure. The connector head 301 is located inside the antenna 1. A connection hole 5021 for accommodating the connector head 301 is provided in the rod portion 502 of the flat head rivet 5. The connection hole 5021 is a blind hole, that is, the connection hole 5021 does not penetrate through the head 501 of the flat head rivet 5. The connector head 301 located inside the antenna 1 is inserted into the connection hole 5021 and fixed therein. In this embodiment, there is no limitation on the fixing method of the connector head 301 and the connection hole 5021. For example, the connector head 301 and the connection hole 5021 can be fixed by interference fit. The connector head 301 can also be fixed in the connection hole 5021 by conductive silver glue. The connector head 301 can also be threadedly connected or snap-connected to the connection hole 5021, etc.

[0044] As an embodiment, the connector head 301 and the connection hole 5021 are fixed by conductive silver glue. The method is as follows: First, drop conductive silver glue into the connection hole 5021, then insert the connector head 301 into the connection hole 5021. After the conductive silver glue cures, the fixing of the connector head 301 and the connection hole 5021 can be achieved.

[0045] As a second embodiment, internal threads are provided on the hole wall of the connection hole 5021, and external threads adapted to the internal threads are provided on the outer periphery of the connector head 301. The threaded connection of the connector head 301 and the connection hole 5021 is achieved by the engagement of the internal threads and the external threads.

[0046] As a third embodiment, the connector head 301 and the connection hole 5021 are snap-connected. For example, a card slot is provided on the hole wall of the connection hole 5021, and a snap adapted to the card slot is provided on the outer surface of the connector head 301; or a snap is provided on the hole wall of the connection hole 5021, and a card slot adapted to the snap is provided on the outer surface of the connector head 301. The snap connection of the connector head 301 and the connection hole 5021 is achieved by snapping the snap into the card slot.

[0047] The radome 2 is attached to the front surface of the substrate 101 and is attached to the antenna body 102 and the head 501.

[0048] In this embodiment, the radome 2 fits the shape of the antenna 1. In this embodiment, there is no specific limitation on the shapes of the radome 2 and the antenna 1, which can be set according to the shape of the installation part of the carrier 4 on which the antenna 1 is installed. If the carrier 4 is a missile, a rocket projectile, etc. with a circular cross-section, then its installation part is arc-shaped. Therefore, both the antenna 1 and the radome 2 are arc-shaped. The inner side of the antenna 1 fits the arc-shaped installation part of the carrier 4, and the inner side of the radome 2 fits the outer side of the antenna 1. Further, in this embodiment, there is no limitation on the shape of the head 501 of the flat head rivet 5, which can be set according to the shape of the pad 104 of the antenna 1, aiming to ensure that the head 501 of the flat head rivet 5 fits the pad.

[0049] In this embodiment, the radome 2 is fixed to the outside of the antenna 1. This embodiment does not limit the fixing method of the radome 2 to the antenna 1. For example, it can be fixedly connected by threaded fasteners, or can also be adhesively connected, snap-connected or connected by other fixing methods. This embodiment does not make specific limitations on this.

[0050] This embodiment does not specifically limit the application scenario of the antenna 1. For example, it can be applied to ammunitions such as missiles and rockets that achieve precise strikes on targets through relay guidance, or can also be used in other aerospace scenarios. Therefore, the material of the radome 2 that protects the antenna 1 can be selected according to the actual application scenario of the antenna 1. For example, when the antenna 1 is used on missiles, rockets, etc. in the aerospace field, since the antenna 1 is exposed to special environments (such as high-salt, high-humidity environments), therefore, the radome 2 made of quartz-reinforced organic matter or ceramics can be used to protect the antenna 1.

[0051] In summary, the present utility model realizes the connection between the antenna 1 and the connector 3 through the flat head rivet 5. Therefore, the connection head 301 of the connector 3 will not pass through the feeding hole 103 of the antenna 1 from the inside of the antenna 1 and expose the outer surface of the antenna 1, and thus there is no need to trim the connection head 301 of the connector 3 anymore. In the present utility model, since only the head 501 of the flat head rivet 5 is provided between the radome 2 and the antenna 1, the thickness of the head 501 of the flat head rivet 5 can be controlled within a reasonable value, so as to realize the close fit between the radome 2 and the antenna, avoid generating gaps between the radome 2 and the antenna 1, and achieve the purpose of protecting the antenna 1.

[0052] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. An antenna device, characterized in that: It includes an antenna, an antenna cover, a connector and a flat head rivet, wherein the antenna cover is attached to the outer side of the antenna; the soldering pad of the feed hole of the antenna is located on the outer side of the antenna; the flat head rivet includes an integrally arranged head and a rod, wherein the head is arranged on the soldering pad of the feed hole of the antenna and is located between the antenna cover and the antenna; the rod passes through the feed hole and is connected to the connector.

2. The antenna device according to claim 1, characterized in that The antenna includes a substrate, an antenna body and the feeding hole, the antenna body is arranged on the front side of the substrate, the feeding hole passes through the substrate, the solder pad of the feeding hole is located on the front side of the substrate and is arranged around the periphery of the feeding hole; the antenna cover is attached to the front side of the substrate and to the antenna body and the head.

3. The antenna device according to claim 1, characterized in that: The connector comprises a connecting head, a connecting hole for accommodating the connecting head is arranged in the rod part, and the connecting head is fixed in the connecting hole.

4. The antenna device according to claim 3, characterized in that: The connecting head is fixed in the connecting hole by conductive silver glue.

5. The antenna device according to claim 3, characterized in that: The connecting head is threadedly connected to the connecting hole.

6. The antenna device according to claim 4, characterized in that: The connecting head is snap-connected with the connecting hole.

7. The antenna device according to claim 1, characterized in that: The head is fixed on the pad of the feeding hole by welding or bonding with conductive adhesive.

8. The antenna device according to claim 1, characterized in that The antenna cover is in close contact with the antenna.

9. The antenna device according to claim 1, characterized in that: The antenna cover is fixedly connected to the antenna via threaded fasteners.

10. The antenna device according to claim 1, characterized in that: The radome is made of quartz-reinforced organic matter or ceramics.

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