A floating connection structure and a floating connection structure based on an aircraft ELT buoy

Abstract

The present invention discloses a floating connection structure, including a first connector and a second connector, the first connector including a first connection surface opposite to the second connector, a fixed socket fixedly connected to the first connection surface, the front of the fixed socket facing outward and provided with a front jack; the second connector including a second connection surface opposite to the first connector, a hollow installation box provided on the second connection surface, at least two screw holes provided on the second connection surface, an installation box through hole aligned with the screw hole position provided on the top surface of the installation box, a floating plug provided in the installation box. The present invention also discloses a floating connection structure based on an aircraft ELT buoy. Compared with the prior art, the technical solution of the present invention has the following beneficial effects: it solves the problem of connector connection reliability in the prior art with a small plug-in distance that may be caused by factors such as component manufacturing and installation errors, vibration, and impact, and realizes reliable electrical performance connection and mechanical connection.

Description

Technical Field

[0001] The present invention relates to the field of connectors, and in particular to a floating connection structure and a floating connection structure based on an aircraft ELT buoy. Background Art

[0002] An ELT stands for Emergency Locator Transmitter, also known as an emergency radio. When an aircraft's speed changes at an unusually high rate, putting it in an unsafe situation, the ELT transmits an emergency signal to notify relevant authorities of the aircraft's emergency.

[0003] Aviation lifesaving buoys require active or passive detachment from the aircraft in times of distress to achieve lifesaving or positioning purposes. Because the existing ELT emergency locating buoy requires the addition of a flight parameter recording function, the detachment end must accommodate the significant installation errors introduced by the detachment device. Separation cannot occur manually, so the electrical connector plugs at both ends cannot be locked into the sockets. Due to the existing structure of the ELT buoy, the flight parameter recording module and power control module can only be located within the ELT buoy and on the aircraft end, respectively. The ELT buoy must also be waterproof to a depth of 15 meters. Electric explosive bolts are life-limited components and must be replaced once a year after installation. During installation, the wires are susceptible to breakage and damage. To solve this problem, a straight-plug floating plug socket is used to realize the electrical connection and mechanical installation of the ELT buoy and the aircraft. The area on the ELT buoy end that can be used for adding electrical connections is very narrow, and only miniature connectors can be used. The maximum size of the plug is 12×32, and the socket is 13×33 (panel sealed). This type of connector has a pitch of 1.25mm, a mating distance of less than 1.75mm, and an effective mating contact length of about 1mm (excluding the pin tip, the chamfer of the socket, etc.). Normal use cannot be guaranteed after the ejection separation device is installed.

[0004] Therefore, how to design a safe and reliable plug-in structure is a technical problem that those skilled in the art currently need to solve. Summary of the Invention

[0005] In order to solve the above technical problems, the main purpose of the present invention is to provide a floating connection structure to solve the technical problem of poor contact when the insertion distance is small. The present invention also provides a floating connection structure based on the aircraft ELT buoy to solve the connection problem between the ELT buoy and the aircraft.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions to solve it.

[0007] (1) A floating connection structure includes a first connector and a second connector, the first connector including a first connection surface opposite to the second connector, a fixed socket fixedly connected to the first connection surface, the front surface of the fixed socket facing outward and provided with a front jack, and the back surface of the fixed socket facing inward and connected to a first electrical component inside the first connector; the second connector including a second connection surface opposite to the first connector, a hollow installation box provided on the second connection surface, at least two screw holes provided on the second connection surface, a top surface of the installation box provided with an installation box through hole aligned with the position of the screw hole, a floating plug provided in the installation box, the floating plug connected to the second electrical component in the second connector, the floating plug provided with plug through holes corresponding to the screw holes, and also including bolts and compression springs equal in number to the screw holes, the bolts respectively passing through the corresponding installation box through holes and plug through holes in sequence, passing out from the compression spring and screwed into the screw holes on the second connection surface.

[0008] Furthermore, a back socket is provided on the back of the fixed socket, and the first electrical component is connected to the back socket through a first plug.

[0009] Furthermore, the fixed socket is connected to the first connector via screws.

[0010] Furthermore, the plugging force between the front jack and the floating plug is F, and the installation pre-pressure of the compression spring is 3F to 5F.

[0011] (2) A floating connection structure based on an aircraft ELT buoy, comprising an ELT buoy and an aircraft, wherein an ELT emergency locating transmitter and a flight parameter recording module are provided in the ELT buoy, and a power control module is provided on the aircraft; the ELT buoy is connected to the aircraft through a separation device; the ELT buoy is provided with a first connection surface, and a socket is provided on the first connection surface, which is a waterproof socket, the front of the waterproof socket is provided with a front jack, and the back of the waterproof socket is provided with a back jack, and the flight parameter recording module is connected to the back jack via a flight parameter recording module output plug; a shielded mounting box is provided on the power control module, and at least two screw holes are provided on the power control module, and a mounting box through-hole aligned with the screw hole position is provided on the top surface of the shielded mounting box, and a waterproof plug is provided in the shielded mounting box, and the waterproof plug is electrically connected to the inside of the power control module through a wire, and the waterproof plug is provided with plug through-holes equal in number to the screw holes, and further comprises bolts and compression springs equal in number to the screw holes, and the bolts respectively pass through the corresponding mounting box through-holes and plug through-holes in sequence, pass out from the compression spring and screw into the screw holes on the power control module.

[0012] Furthermore, the effective plug-in contact length between the waterproof socket and the waterproof plug is H, and the floating distance of the waterproof plug is greater than 2.5H.

[0013] Furthermore, the insertion force between the front jack and the waterproof plug is F, and the installation pre-pressure of the compression spring is 3F to 5F.

[0014] Furthermore, the installation box is a shielding installation box.

[0015] Furthermore, a liner is sleeved on the bolt, the inner diameter of the liner is larger than the outer diameter of the bolt, and the outer diameter of the liner is smaller than the inner diameter of the compression spring.

[0016] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: it solves the problem of connector connection reliability in the prior art where a small plug-in distance may be caused by factors such as component manufacturing and installation errors, vibration, and impact, achieves reliable electrical performance connection and mechanical connection, and at the same time solves the electromagnetic compatibility problem caused thereby. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of an embodiment of the floating connection structure of the present invention when the compression spring is not compressed;

[0019] Figure 2 This is a schematic diagram of a compression spring in an embodiment of a floating connection structure of the present invention being compressed;

[0020] Figure 3 This is an exploded schematic diagram of an embodiment of a floating connection structure based on an aircraft ELT buoy;

[0021] In the above diagram:

[0022] 1. First connector; 2. Second connector; 3. Fixed socket; 4. Mounting box; 5. Floating plug; 6. Bolt; 7. Compression spring; 8. First plug; 9. ELT buoy; 10. Power control module; 11. Separation device; 12. Waterproof socket; 13. Waterproof plug; 14. Flight parameter recording module output plug; 15. Liner. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] The following description sets forth specific details to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] (1) Referring to the figure, a floating connection structure includes a first connector 1 and a second connector 2, the first connector 1 including a first connection surface opposite to the second connector 2, a fixed socket 3 fixedly connected to the first connection surface, the front surface of the fixed socket 3 facing outward and provided with a front jack, and the back surface of the fixed socket 3 facing inward and connected to a first electrical component inside the first connector 1; the second connector 2 including a second connection surface opposite to the first connector 1, a hollow mounting box 4 provided on the second connection surface, at least two screw holes provided on the second connection surface, a mounting box through-hole provided on the top surface of the mounting box 4 aligned with the screw holes, a floating plug 5 provided in the mounting box 4, the floating plug 5 connected to the second electrical component in the second connector 2, the floating plug 5 provided with plug through-holes corresponding to the screw holes, and also including bolts 6 and compression springs 7 equal in number to the screw holes, the bolts 6 respectively passing through the corresponding mounting box through-holes and plug through-holes in sequence, passing out from the compression spring 7 and screwed into the screw holes on the second connection surface.

[0026] Furthermore, a rear socket is provided on the rear side of the fixed socket 3 , and the first electrical component is connected to the rear socket via a first plug 8 .

[0027] Furthermore, the fixed socket 3 is connected to the first connector 1 via screws.

[0028] Furthermore, the insertion force between the front jack of the fixed socket 3 and the floating plug 5 is F, and the installation pre-pressure of the compression spring 7 is 3F to 5F.

[0029] In some cases, due to structural limitations, the effective mating distance between the socket and plug on the first and second connectors to be connected is small. Accumulated manufacturing errors or vibrations can lead to poor contact between the socket and plug. Even momentary poor contact can result in signal transmission interruption, significantly increasing the error rate. In the above embodiment, a floating plug structure is provided on the second connector 2, utilizing the movement of the plug relative to the elastic element to compensate for errors or displacements caused by manufacturing, installation, vibration, impact, and other factors. The preload of the compression spring 7 is 3 to 5 times the mating force, which, combined with the superimposed pressure of the floating plug 5 during compression, is sufficient to offset the tendency of vibration and impact to cause separation during use. This prevents momentary separation of the fixed socket 3 and the floating plug 5.

[0030] (2) Floating connection structure based on aircraft ELT buoy, including ELT buoy 9 and aircraft, ELT An ELT emergency positioning transmitter and a flight parameter recording module are provided in the buoy 9, and a power control module 10 is provided on the aircraft; the ELT buoy 9 is connected to the aircraft through a separation device 11; a first connection surface is provided on the ELT buoy 9, and a socket is provided on the first connection surface, which is a waterproof socket 12. The front of the waterproof socket 12 is provided with a front jack, and the back is provided with a back jack. The flight parameter recording module is connected to the back jack through a flight parameter recording module output plug 14; a shielded mounting box is provided on the power control module 10, and at least two screw holes are provided on the power control module 10. The top surface of the shielded mounting box is provided with a mounting box through hole aligned with the screw hole position, and a waterproof plug 14 is provided in the shielded mounting box. The waterproof plug 14 is electrically connected to the inside of the power control module 10 through a wire, and the waterproof plug 14 is provided with a plug through hole corresponding to the screw hole, and also includes bolts 6 and compression springs 7 with the same number as the screw holes. The bolts 6 pass through the corresponding mounting box through hole and plug through hole in turn, pass out from the compression spring 7 and screw into the power control module 10. In practice, there are four bolts, four plug through holes, and four bolts and compression springs.

[0031] Furthermore, the effective plug-in contact length between the waterproof socket 12 and the waterproof plug 14 is H, and the floating distance of the waterproof plug 14 is greater than 2.5H.

[0032] Furthermore, the insertion force between the front jack and the waterproof plug 14 is F, and the installation pre-pressure of the compression spring 7 is 3F to 5F.

[0033] Furthermore, the installation box 4 is a shielding installation box.

[0034] Furthermore, a liner 15 is sleeved over the bolt 6. The inner diameter of the liner 15 is larger than the outer diameter of the bolt 6, and the outer diameter of the liner 15 is smaller than the inner diameter of the compression spring 7. The height of the liner 15 extends beyond the plug through-hole, and its function is to guide the waterproof plug when it slides up and down, preventing friction between the plug through-hole and the bolt from causing jamming.

[0035] The above embodiment illustrates a specific application of a floating connection structure between an ELT buoy and an aircraft. In this embodiment, the ELT buoy 9 is equipped with a flight parameter recording module, and the aircraft is provided with a power control module 10. The ELT buoy 9 is connected to the aircraft via a separation device 11. The ELT buoy 9 is released when the aircraft reaches the release conditions. The connection distance between the ELT buoy 9 and the aircraft is small, and manufacturing errors and vibrations can lead to an unstable connection between the ELT buoy 9 and the aircraft.

[0036] This embodiment employs a fixed waterproof socket 12 on the ELT buoy 9 and a floating waterproof plug 14 on the aircraft. The ELT emergency locator transmitter within the ELT buoy 9 connects to the rear jack of the waterproof socket 12, while the waterproof plug 14 connects to the front jack of the waterproof socket 12. The connection between the waterproof plug 14 and the shielded mounting box is removable, eliminating the need for a seal. Sealant ensures a good airtight connection between the connecting wires of the waterproof plug 14 and the interior of the aircraft. Since the mounting box 4 is a shielded mounting box, good electromagnetic compatibility is ensured after connection, ensuring the "three-proof" performance requirements.

[0037] This structure mainly solves the complex situations where the plug and socket cannot be locked as required, and the system installation inevitably has large structural installation errors and the influence of vibration, impact, etc., and uses structural elastic compensation to offset the manufacturing errors of components, installation errors, and the problems of power failure or unreliable contact that may occur due to vibration and impact.

[0038] Although the present invention has been described in detail in this specification using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the present invention. Therefore, such modifications and improvements, which do not depart from the present invention, are intended to fall within the scope of protection claimed herein.

Claims

1. The floating connection structure based on the aircraft ELT buoy is characterized by: Used to connect an ELT buoy (9) and an aircraft, wherein an ELT emergency positioning transmitter and a flight parameter recording module are provided in the ELT buoy (9), and a power control module (10) is provided on the aircraft; the ELT buoy (9) is connected to the aircraft via a separation device (11); a first connection surface is provided on the ELT buoy (9), a fixed waterproof socket (12) is provided on the first connection surface, a front jack is provided on the front of the waterproof socket (12), and a back jack is provided on the back; the flight parameter recording module is connected to the back jack via a flight parameter recording module output plug (14); a shielded installation box is provided on the power control module (10), The power control module (10) is provided with at least two screw holes, the top surface of the shielding installation box is provided with an installation box through hole aligned with the screw hole position, a floating waterproof plug (13) is provided in the shielding installation box, the waterproof plug (13) is electrically connected to the inside of the power control module (10) through a wire, the waterproof plug (13) is provided with plug through holes equal to the number of screw holes, and also includes bolts (6) and compression springs (7) equal to the number of screw holes, the bolts (6) respectively pass through the corresponding installation box through holes and plug through holes in sequence, pass out from the compression spring (7) and are screwed into the screw holes on the power control module (10).

2. The floating connection structure based on the aircraft ELT buoy (9) according to claim 1 is characterized in that: The effective plug-in contact length between the waterproof socket (12) and the waterproof plug (13) is H, and the floating distance of the waterproof plug (13) is greater than 2.5H.

3. The floating connection structure based on the aircraft ELT buoy (9) according to claim 2 is characterized in that: The plugging force between the front jack and the waterproof plug (13) is F, and the installation pre-pressure of the compression spring (7) is 3F to 5F.

4. The floating connection structure based on the aircraft ELT buoy (9) according to claim 3 is characterized in that: The bolt (6) is sleeved with a liner (15), the inner diameter of the liner (15) is larger than the outer diameter of the bolt (6), and the outer diameter of the liner (15) is smaller than the inner diameter of the compression spring (7).

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