CN115579613A - Connection structure of aircraft external antenna and external antenna system comprising same - Google Patents
Connection structure of aircraft external antenna and external antenna system comprising same Download PDFInfo
- Publication number
- CN115579613A CN115579613A CN202211375989.5A CN202211375989A CN115579613A CN 115579613 A CN115579613 A CN 115579613A CN 202211375989 A CN202211375989 A CN 202211375989A CN 115579613 A CN115579613 A CN 115579613A
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- Prior art keywords
- antenna
- tray
- external antenna
- aircraft
- connection structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/285—Aircraft wire antennas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/36—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Details Of Aerials (AREA)
Abstract
A connection structure for an external antenna of an aircraft includes an antenna tray and a sealing member, the external antenna is installed at an outer side of the antenna tray, the sealing member is connected at an inner side of the antenna tray, and the antenna tray is installed on a fuselage of the aircraft. The external antenna is connected to the antenna tray through the first detachable connecting piece, the antenna tray is connected to the machine body through the second detachable connecting piece, and the first sealing gasket is inserted between the antenna tray and the machine body. This connection structure helps improving sealed effect, and is convenient for overhaul the maintenance to the antenna and install the fuselage part of this antenna. And to an external antenna system comprising the connection structure.
Description
Technical Field
The invention belongs to the field of aircraft design, particularly relates to a system for an external antenna of an aircraft, and more particularly relates to an external antenna connecting structure for mounting an antenna on the aircraft.
Background
Antennas are essential devices on civil aircraft, such as ADF antennas, high gain antennas, marine satellite antennas, etc., navigation antennas, communication antennas, etc. The type of antenna selected may vary depending on the configuration, size, etc. of the aircraft. And different satellites correspond to different shelf products. Depending on the antenna chosen, the fit between the mounting surface of the antenna and the surface structure of the aircraft, such as the skin, may also change, which may result in an inability to ensure a perfect fit between the antenna and the aircraft fuselage.
In order to optimize the fit between the antenna and the aircraft fuselage, a connection structure is provided to connect the antenna and the aircraft fuselage. However, in the case of the addition of the connection structure, the airtight line between the antenna and the aircraft fuselage can move outwards, with the risk of the connection structure directly bearing the airtight load of the fuselage. Furthermore, in the case of antennas mounted on the external surface of the fuselage, there is a need to reduce the dismantling effort during the repair of the antenna, in order to facilitate the repair maintenance and inspection of the antenna and of the part of the skin covered by it.
In the existing external antenna mounting structure, there is a design that the mounting base of the antenna is connected to the body, for example, the stringer structure, by a fastening structure such as a rivet. For the structure, when the antenna is maintained and checked, the rivet connecting structure is not convenient to disassemble, and the difficulty of maintaining the antenna is increased.
Another design is to design the mounting socket and the support plate of the antenna as a welded connection. This structure is suitable for an antenna apparatus to which a mounting cover can be added. However, the provision of a mounting cup also increases the difficulty of removal during maintenance of the antenna.
Accordingly, there is a need for further improved antenna connection structures that overcome the problems with existing aircraft antenna structures as discussed above.
Disclosure of Invention
The present invention has been made to solve the above-described problems occurring in the prior art. The object of the present invention is to provide an improved connection structure for an aircraft external antenna, which is capable of improving the sealing against the aircraft fuselage and which allows easy maintenance of the aircraft antenna. In addition, the connecting structure can also realize the connecting structure with simple structure, and can be suitable for the installation requirements of antennas with different types and sizes. The invention also provides an antenna system comprising the connecting structure.
The connecting structure mainly comprises an antenna tray and a sealing piece, wherein the external antenna is arranged on the outer side of the antenna tray, the sealing piece is connected to the inner side of the antenna tray, and the antenna tray is arranged on a fuselage of the airplane. The external antenna is connected to the antenna tray through the first detachable connecting piece, the antenna tray is connected to the machine body through the second detachable connecting piece, and the first sealing gasket is inserted between the antenna tray and the machine body.
By the above-defined connection structure, the airtight function at the installation position of the body, particularly the external antenna, can be ensured with a light overall weight. And, by the detachable connection between the connection structure and the fuselage, repeated detachment of the connection structure is allowed, and the portion of the fuselage (e.g., skin) covered by the connection structure can be inspected for ease of repair and maintenance by simply detaching the second detachable connection between the antenna tray fuselages. Moreover, the first sealing gasket can compensate the gap between the antenna tray and the machine body, and plays a role in improving the sealing effect.
Preferably, a second gasket is interposed between the sealing member and the body. The second gasket contributes to the sealing effect of the seal.
Preferably, the first sealing gasket is attached to the antenna tray and the body by normal temperature adhesion, and/or the second sealing gasket is attached to the sealing member and the body by normal temperature adhesion.
Preferably, the antenna tray and the seal are non-removably connected together by high lock bolts.
In an exemplary structure of the first detachable connector, the first detachable connector includes a plurality of first nuts provided at an inner side of the antenna tray and a plurality of first screws that can be inserted from an outer side of the external antenna and are engaged with the corresponding first nuts.
In an exemplary structure of the second detachable connection member, the second detachable connection member includes a plurality of second nuts provided at positions corresponding to the periphery of the antenna tray on the inner side of the body, and a plurality of second screws that can be inserted from the outer side of the antenna tray and are engaged with the corresponding second nuts.
Preferably, the sealing member is connected with the machine body through a third detachable connecting piece so as to improve the connecting effect between the connecting structure and the machine body.
In one exemplary structure of the third detachable connector, the third detachable connector includes a plurality of third nuts provided at positions corresponding to the sealing member on an inner side of the body, and a plurality of bolts, and the third nuts are insertable from an outer side of the sealing member and are engaged with the corresponding third nuts.
Here, the first screw, the second screw, and the bolt are, for example, structures with a crosshead, a straight head, or the like so that they can be detached using a tool such as a screwdriver.
Preferably, an opening reinforcing plate is further interposed between the sealing member and the body to reinforce the overall structural strength of the connecting structure.
Preferably, at least one pressure relief hole is disposed on the first gasket along the periphery of the antenna tray. The pressure relief hole can be used for exhausting and draining air from the inside of the connecting structure.
It also relates to an external antenna system for an aircraft, which external antenna system comprises an external antenna and which external antenna system further comprises a connection structure as described above, by means of which the external antenna is mounted on the fuselage of the aircraft.
Drawings
The embodiments of the invention will become more apparent from the structure illustrated in the accompanying drawings, in which:
fig. 1 shows an external antenna system of the present invention mounted on the skin of an aircraft.
Fig. 2 showsbase:Sub>A cross-sectional view of the external antenna system taken along linebase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 shows a schematic illustration of the installation of an external antenna system as seen from the cabin of an aircraft.
Fig. 4 shows a schematic illustration of the installation of an external antenna system as seen from outside the cabin of an aircraft.
Fig. 5 shows an enlarged view of a portion B in fig. 1.
Fig. 6 shows an assembly schematic of the connection structure of the external antenna system, showing a plurality of pressure relief holes provided along the perimeter of the antenna tray.
(symbol description)
10 aerial
20 covering
30 stringer
100 connecting structure
110 antenna tray
120 sealing element
131 first seal gasket
132 second gasket
133 relief vent
141 first nut
142 second nut
143 third nut
151 first screw
152 second screw
153 bolt
154 high lock bolt
160 opening reinforcing plate
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It is to be understood that the preferred embodiments of the present invention are shown in the drawings only, and are not to be considered limiting of the scope of the invention. Obvious modifications, variations and equivalents will occur to those skilled in the art based on the embodiments shown in the drawings, and the technical features of the different embodiments described below may be arbitrarily combined with each other without contradiction, all of which fall within the scope of the present invention.
In the following description of specific embodiments of the present invention, terms such as "inner", "outer", and the like are used with reference to an aircraft. The term "inner" refers to the side facing the aircraft, or toward the interior of the aircraft, and the term "outer" refers to the side facing away from the aircraft, or toward the exterior of the aircraft.
Fig. 1 shows an aircraft-mounted antenna system of the present invention. The antenna system comprises, among other things, an antenna 10, which antenna 10 is, for example, an external antenna, i.e. an antenna mounted on the outside of the fuselage of an aircraft. As schematically shown in fig. 1, the antenna 10 is mounted on the skin 20 of the aircraft by means of a connection structure 100.
Fig. 2 showsbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1, from which the specific structure of the antenna 10 and the connection structure 100 between the antenna 10 and the skin 20 can be more clearly seen. The connection structure 100 includes an antenna tray 110 and a sealing member 120. The antenna 10 is detachably mounted on the antenna tray 110, for example, as shown in fig. 2, a plurality of first nuts 141 are provided on the inner side of the antenna tray 110, and the first nuts 141 may be fixedly coupled on the inner side of the antenna tray 110 and aligned with corresponding holes (not shown) on the antenna tray 110. Through holes (in the form of counter bores) are also provided in the antenna 10, and during the process of attaching the antenna 10 to the antenna tray 110, the through holes of the antenna 10 may be aligned with the corresponding holes of the antenna tray 110, and the first screws 151 may pass through the through holes of the antenna 10 and the holes of the antenna tray 110 and then be screwed to the first nuts 141, thereby attaching the antenna 10 to the antenna tray 110. Here, the first screw 151 may be, for example, a screw with a cross head, and the first screw 151 may be removed using a cross screwdriver, thereby achieving the removal of the antenna 10 from the antenna tray 110. The first screw 151 may also be other types of removable fasteners, such as a bolt, a lag screw, and the like.
The antenna tray 110 may be removably mounted to the skin 20 by a removable connection. Specifically, as shown in fig. 3, a plurality of second nuts 142 are provided on the inner surface of the skin 20 at positions corresponding to the antenna tray 110, and the second nuts 142 may be fixedly mounted on the inner side of the skin 20, for example. A plurality of second screws 152 may be inserted from the outside, through the antenna tray 110 and the skin 20, and screwed to the corresponding second nuts 142, thereby connecting the antenna tray 110 to the skin 20. The second screws 152 are detachable members, which may be, for example, like the first screws 151, such as cross-head screws, in-line screws, bolts, etc., and the second screws 152 may be detached with a tool such as a screwdriver, thereby detaching the antenna tray 110 from the skin 20.
In the present invention, a first gasket 131 is interposed between the antenna tray 110 and the skin 20. Specifically, the first sealing gasket 131 may be attached between the antenna tray 110 and the skin 20 by means of, for example, room temperature adhesive. By providing this first packing 131, when the antenna tray 110 is detached from the skin 20 by detaching the second screws 152, the antenna tray 110 can be separated from the skin 20 so as to inspect the portion of the skin 20 covered by the antenna tray 110. Moreover, in the case of the general structure of the skin 20, the contact surface with the antenna tray 110 is a curved surface contact, and by interposing the first gasket 131 therebetween, a gap that may occur between the antenna tray 110 and the skin 20 may be compensated, and the sealability between the antenna tray 110 and the skin 20 may be improved.
Preferably, a second gasket 132 is interposed between the seal 120 and the skin 20. Similar to the first gasket 131, the second gasket 132 may be attached between the sealing member 120 and the skin 20 by means of, for example, a room-temperature adhesive, which may compensate for a gap that may occur between the sealing member 120 and the skin 20, providing an additional sealing effect between the sealing member 120 and the skin 20.
Further preferably, the seal 120 is also removably attached to the skin 20 by a removable attachment. For example, as shown in fig. 3 and 4, a plurality of third nuts 143 (fig. 3) are provided on the inner surface of the skin 20 at positions corresponding to the sealing members 120, and a plurality of bolts 153 are inserted from the outside, pass through the sealing members 120 and the skin 20, and are screwed to the corresponding third nuts 143. Bolt 153 may be a cross-head or a cross-head bolt such that a tool such as a screwdriver may be used to remove bolt 153 and thereby separate seal 120 from skin 20, thereby facilitating inspection, maintenance, etc. of the portion of skin 20 covered by seal 120.
The antenna tray 110 and the sealing member 120 may be non-detachably coupled together. Specifically, the antenna tray 110 and the sealing member 120 may be connected by high locking bolts 154. The use of the high locking bolts 154 may improve the coupling strength between the antenna tray 110 and the sealing member 120. Of course, it is within the scope of the present invention that the antenna tray 110 and the seal 120 may be connected to each other by removable screw bolts or the like, which is a preferred configuration using high lock bolts 154.
Returning to FIG. 2, it can be seen that an open reinforcement plate 160 is preferably also included between the seal 120 and the skin 20, the open reinforcement plate 160 serving to improve structural strength. Specifically, the opening reinforcement plate 160 may be disposed between the second gasket 132 and the skin 20. Also, as shown in the figures, the location of the open stiffened panel 160 may correspond to the stringer 30 on the skin 20.
Preferably, a plurality of pressure relief holes 133 are formed on the first gasket 131 along the circumference of the antenna tray 110. The relief hole 133 functions to exhaust and drain air from the inside of the connection structure 100. Fig. 5 shows an enlarged view of a portion B in fig. 1, in which the pressure relief hole 133 provided in the first packing 131 is clearly shown. In addition, as can be seen in the schematic view shown in fig. 6, three pressure relief holes 133 are provided along the periphery of the antenna tray 110. Of course, more or fewer pressure relief holes 133 may be provided depending on the actual installation and requirements, and are within the scope of the present invention.
An exemplary installation procedure of the antenna system of the present invention will be described below:
first, the antenna tray 110 and the sealing member 120 are fixedly coupled together with the high locking bolts 154, and the coupling between the antenna tray 110 and the sealing member 120 may be non-detachable. Next, the antenna 10 is mounted on the antenna tray 110 using the first screws 151. Then, the antenna tray 110 is detachably attached to the skin 20 using the second screws 152, and the first gasket 131 is interposed between the antenna tray 110 and the skin 20. The seal 120 is in sealing contact with the skin 20 during attachment of the antenna tray 110 to the skin 20. Preferably, a second gasket 132 may be interposed between the seal 120 and the skin 20. Also preferably, bolts 153 are used to attach the seal 120 to the skin 20. Further, an opening reinforcement plate 160 may be additionally provided between the seal 120 and the skin 20.
For the above-described structure, the antenna tray 110 of the connection structure 100 may be a sheet metal part, and may be manufactured using a press-forming process. In addition, the sealing member 120 is made of various materials that may have a sealing function, for example, a material that may be locally deformed, and thus the second sealing gasket 132 described above may be omitted.
In addition, the above disclosed connecting members for connection are detachable first screw 151, second screw 152, bolt 153, which are preferred structures, however, the structures of screw bolt, etc. are interchangeable and are also within the scope of the present invention.
Claims (10)
1. A connection structure for an external antenna of an aircraft, the connection structure comprising an antenna tray and a seal, the external antenna being mounted on an outer side of the antenna tray, the seal being connected to an inner side of the antenna tray, and the antenna tray being mounted on a fuselage of the aircraft, characterized in that,
the external antenna is connected on the antenna tray through a first detachable connecting piece, the antenna tray is connected on the machine body through a second detachable connecting piece, and a first sealing gasket is inserted between the antenna tray and the machine body.
2. The connecting structure according to claim 1, wherein a second gasket is interposed between the sealing member and the body.
3. The connection structure according to claim 2, wherein the first gasket is attached to the antenna tray and the body by room temperature adhesion, and/or the second gasket is attached to the sealing member and the body by room temperature adhesion.
4. The connection according to claim 1, wherein the antenna tray and the sealing member are non-detachably connected together by a high lock bolt.
5. The connection structure of claim 1, wherein the first detachable connection member includes a plurality of first nuts provided at an inner side of the antenna tray and a plurality of first screws that can be inserted from an outer side of the external antenna and are engaged with the corresponding first nuts, and/or
The connecting piece can be dismantled to the second includes a plurality of second nuts and a plurality of second screw, the second nut sets up the inboard of fuselage with the peripheral corresponding position department of antenna tray, the second screw can be followed the outside of antenna tray is inserted, and with corresponding the second nut cooperatees.
6. The connection according to claim 1, wherein the sealing member is connected to the body by a third detachable connection.
7. The coupling structure according to claim 6, wherein the third detachable coupling member includes a plurality of third nuts provided at positions corresponding to the sealing members on an inner side of the body, and a plurality of bolts, the third nuts being insertable from an outer side of the sealing members and being engaged with the corresponding third nuts.
8. The connecting structure according to claim 1, wherein an opening reinforcing plate is further interposed between the sealing member and the body.
9. The connection structure of claim 1, wherein at least one pressure relief hole is provided on the first gasket along a periphery of the antenna tray.
10. An external antenna system for an aircraft, the external antenna system comprising an external antenna, characterized in that the external antenna system further comprises a connection structure according to any one of claims 1 to 9, by means of which the external antenna is mounted on the fuselage of the aircraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211375989.5A CN115579613A (en) | 2022-11-04 | 2022-11-04 | Connection structure of aircraft external antenna and external antenna system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211375989.5A CN115579613A (en) | 2022-11-04 | 2022-11-04 | Connection structure of aircraft external antenna and external antenna system comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115579613A true CN115579613A (en) | 2023-01-06 |
Family
ID=84589756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211375989.5A Pending CN115579613A (en) | 2022-11-04 | 2022-11-04 | Connection structure of aircraft external antenna and external antenna system comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115579613A (en) |
-
2022
- 2022-11-04 CN CN202211375989.5A patent/CN115579613A/en active Pending
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