A power connection device for aviation obstruction lights

By incorporating a silicone umbrella skirt, magnetic fluid sealing ring, and spring pin into the power connection device for aviation obstruction lights, the sealing problem was solved, achieving a high level of protection and convenient installation, simplifying the maintenance process and reducing maintenance costs.

CN224516727UActive Publication Date: 2026-07-17CHENGDU JINHUA UTILITY ELECTRICAL APP RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU JINHUA UTILITY ELECTRICAL APP RES INST
Filing Date
2025-09-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing aviation obstruction light power connection devices are not effectively sealed against the effects of external moisture and dust, resulting in a shortened service life. Furthermore, they are complex to install and inconvenient to maintain, increasing the risks and costs for staff.

Method used

It adopts a multi-level protection structure with silicone umbrella skirt and magnetic fluid sealing ring at the socket end, and a tight contact design between the spring pin and gold-plated ring conductive plate at the plug end. Combined with the convenient maintenance mechanism of hot-swappable fuse box, it ensures that the circuit is not affected by moisture and dust, and supports quick installation and convenient maintenance.

Benefits of technology

It achieves a high level of sealing, significantly extends the service life of the device, simplifies the installation process, reduces the risk of installation errors, supports rapid maintenance, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a power connection device for an aviation obstruction light, relating to the field of power connection technology. It includes a main body with a socket end at the top and a plug end at the bottom. The socket end is fixed to the light frame, and the plug end connects to an external power cord. The silicone umbrella skirt of the socket end combines with a magnetic fluid sealing ring to form multi-level protection, resisting corrosion from strong winds, rain, and salt spray, achieving an IP68 protection rating and significantly extending the device's service life. The magnetic fluid automatically fills the gap after insertion and removal, avoiding the sealing failure problem caused by the wear of traditional O-rings. The gold-plated annular conductive sheet at the bottom of the socket end's circular groove makes tight contact with the spring pin, combined with the sealing structure, ensuring that the internal circuitry is not affected by moisture or dust, preventing light flickering or failure.
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Description

Technical Field

[0001] This utility model relates to the field of power connection technology, and in particular to a power connection device for aviation obstruction lights. Background Technology

[0002] Aviation obstruction lights are used to mark obstacles such as tall buildings, iron towers, and wind turbines to ensure flight safety. Their power connection devices are critical components and must meet stringent requirements such as high reliability, waterproofing, shock resistance, and quick assembly / disassembly.

[0003] Existing aviation obstruction light power connection devices often fail to effectively resist the effects of external environmental factors such as moisture and dust in terms of sealing. This not only affects the service life of the device but may also cause unstable light brightness or even complete failure due to internal short circuits. Secondly, the installation process of existing devices is relatively complex and time-consuming, requiring multiple disassemblies and fixing devices to complete the connection. Especially when working at high altitudes, this undoubtedly increases the risk and difficulty for workers. Moreover, traditional maintenance and repair operations are also inconvenient, usually requiring professional personnel to disassemble, assemble, and debug, which is not only time-consuming and labor-intensive but also increases maintenance costs. Therefore, we propose an aviation obstruction light power connection device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Existing aviation obstruction light power connection devices often fail to effectively resist the influence of external environmental factors such as moisture and dust in terms of sealing. This not only affects the lifespan of the device but may also cause unstable light brightness or even complete failure due to internal short circuits. Secondly, the installation process of existing devices is relatively complex and time-consuming, requiring multiple disassemblies and reassemblies to complete the connection. This is especially problematic during high-altitude operations, which undoubtedly increases the risk and difficulty for workers. Furthermore, traditional maintenance and repair operations are equally inconvenient, typically requiring professional personnel for disassembly, assembly, and adjustment, which is not only time-consuming and labor-intensive but also increases maintenance costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An aviation obstruction light power connection device includes a connection device body, the top of the connection device body is a socket end, the bottom of the connection device body is a plug end, the socket end is fixed on the light frame, and the plug end is connected to an external power cord.

[0007] Furthermore, a circular groove is provided on the socket end, and an L-shaped guide groove is provided on the inner wall of the circular groove, with the horizontal section of the L-shaped guide groove extending clockwise.

[0008] Furthermore, a gold-plated annular conductive sheet is installed at the center of the bottom of the circular groove, and an annular groove is formed on the outer side of the annular conductive sheet at the bottom of the circular groove, and a magnetic fluid sealing ring is embedded in the annular groove.

[0009] Furthermore, a silicone umbrella skirt is provided on the top end face of the circular groove. The silicone umbrella skirt has an outward-turned structure, and the silicone umbrella skirt is spaced 5mm from the opening of the L-shaped guide groove.

[0010] Furthermore, two lifting lugs are symmetrically welded to the outer wall of the plug end, one of which is positioned corresponding to the L-shaped guide groove.

[0011] Furthermore, a plurality of spring pins are arranged in a ring at the center of the end face of the plug, the initial protrusion of the spring pins being 2mm and the full compression being 5mm.

[0012] Furthermore, a hot-swappable safety compartment is provided on the outer wall of the middle section of the main body of the connecting device. A button is installed above the hot-swappable safety compartment, and a compartment door is rotatably connected to the hot-swappable safety compartment. The button drives the compartment door to open and close.

[0013] Furthermore, a U-shaped spring is installed at the top of the hot-swappable fuse compartment, with the opening of the U-shaped spring facing upwards, and a fuse end cap is installed at the bottom of the U-shaped spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The silicone umbrella skirt at the socket end is combined with the magnetic fluid sealing ring to form multi-level protection, which can resist the corrosion of strong winds, rain, salt spray, etc., and the protection level reaches IP68, significantly extending the service life of the device. The magnetic fluid automatically fills the gap after insertion and removal, avoiding the sealing failure problem caused by the wear of traditional O-rings. The gold-plated ring conductive sheet at the bottom of the round groove at the socket end makes close contact with the spring pin, and together with the sealing structure, ensures that the internal circuit is not affected by moisture and dust, and avoids light flickering or failure.

[0016] 2. The lugs on the plug end and the L-shaped guide groove on the socket end cooperate with each other. Simply insert and rotate 90° to lock it in place. No tools are required, reducing installation time by 70%. The over-compression design of the spring pin ensures stable contact pressure and prevents vibration from loosening. The asymmetrical layout of the lugs and guide groove avoids mis-insertion and reduces the risk of installation errors.

[0017] 3. The fuse can be replaced directly through the outward-opening compartment door without disassembling the entire device, and maintenance can be completed within 30 seconds. The interference fit design between the U-shaped spring and the fuse end cap ensures reliable contact. After the fuse blows, the spring automatically rebounds and triggers a visual warning. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an aviation obstruction light power connection device provided by this utility model;

[0019] Figure 2 A schematic diagram of the bottom structure of the circular groove of an aviation obstruction light power connection device provided by this utility model;

[0020] Figure 3 A schematic diagram of the plug end structure of an aviation obstruction light power connection device provided by this utility model;

[0021] Figure 4 A schematic diagram of the internal structure of the hot-swappable safety compartment of an aviation obstruction light power connection device provided by this utility model.

[0022] Legend: 1. Main body of the connecting device; 101. Socket end; 102. Plug end; 103. Circular groove; 104. L-shaped guide groove; 105. Annular conductive sheet; 106. Magnetic fluid sealing ring; 107. Silicone umbrella skirt; 108. Lifting lug; 109. Spring pin; 110. Hot-swappable fuse compartment; 111. Button; 112. Compartment door; 113. U-shaped spring; 114. Fuse end cap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example 1:

[0028] like Figure 1-4 As shown, this utility model provides a technical solution: a power connection device for an aviation obstruction light, including a connection device body 1, the top of the connection device body 1 is a socket end 101, the bottom of the connection device body 1 is a plug end 102, the socket end 101 is fixed on the light frame, the plug end 102 is connected to an external power cord, the socket end 101 is provided with an L-shaped guide groove 104, which can be locked by rotating 90° after insertion, and the plug end 102 is embedded with a gold-plated spring pin 109, which forms multi-point contact with the annular contact in the external socket, replacing the traditional threaded terminal.

[0029] Example 2:

[0030] like Figure 1-4 As shown, a circular groove 103 is provided on the socket end 101, and an L-shaped guide groove 104 is provided on the inner wall of the circular groove 103. The horizontal section of the L-shaped guide groove 104 extends clockwise. A gold-plated annular conductive sheet 105 is installed at the center of the bottom of the circular groove 103. The annular conductive sheet 105 is matched with the spring pin 109 of the plug end 102. The surface is gold-plated. An annular groove is provided on the outer side of the annular conductive sheet 105 at the bottom of the circular groove 103, and a magnetic fluid sealing ring 106 is embedded in the annular groove. A silicone umbrella skirt 107 is provided on the top end face of the circular groove 103. The silicone umbrella skirt 107 has an outward folding structure. The silicone umbrella skirt 107 is 5mm away from the opening of the L-shaped guide groove 104. The silicone umbrella skirt 107 is compressed to form a radial seal when inserted.

[0031] Two lifting lugs 108 are symmetrically welded on the outer wall of the plug end 102. One of the lifting lugs 108 is positioned corresponding to the L-shaped guide groove 104. Several spring pins 109 are arranged in a ring at the center of the end face of the plug end 102. The initial protrusion of the spring pins 109 is 2mm, and the full compression is 5mm. The over-compression design of the spring pins 109 ensures stable contact pressure and prevents vibration from loosening.

[0032] A hot-swappable safety compartment 110 is provided on the outer wall of the middle section of the main body 1 of the connecting device. A button 111 is installed on the top of the hot-swappable safety compartment 110. A compartment door 112 is rotatably connected to the hot-swappable safety compartment 110. The button 111 drives the compartment door 112 to open and close. A U-shaped spring 113 is installed at the top of the hot-swappable safety compartment 110. The opening of the U-shaped spring 113 faces upward. A fuse end cap 114 is installed at the bottom of the U-shaped spring 113. The hot-swappable safety compartment 110 allows the fuse to be replaced without power interruption. The fuse end cap 114 is pressed into the U-shaped spring 113 from above, forcing the side arm of the U-shaped spring 113 to expand elastically outward. The rebound force of the U-shaped spring 113 firmly presses the fuse end cap 114 into the inner wall of the slot. When the fuse blows, the fuse end cap 114 loses its restraint, and the side arm of the U-shaped spring 113 returns to its free state.

[0033] The working process of this utility model is as follows: When using an aviation obstruction light power connection device, first align the plug end 102 with the socket end 101, so that the lug 108 on the outer wall of the plug is aligned with the L-shaped guide groove 104 on the inner wall of the socket, and insert it vertically. After the plug end 102 is fully inserted, rotate it 90° clockwise. The lug 108 slides along the horizontal section of the L-shaped guide groove 104, triggering the plug to move slightly axially by 1.5mm, so that the spring pin 109 is further compressed and makes close contact with the gold-plated annular conductive sheet 105 of the socket end 101, thus completing the electrical connection. At the same time, when the plug is inserted, the silicone umbrella skirt 107 is compressed to form a radial seal. After rotating to the position, the magnetic fluid sealing ring 106 is activated to achieve double waterproofing.

[0034] After the power is turned on, the current is transmitted to the obstruction light through the low-resistance contact between the spring pin 109 and the annular conductive sheet 105. If the circuit is overloaded, the fuse in the hot-swappable fuse compartment 110 will blow, the U-shaped spring 113 will automatically spring back, the fuse end cap 114 will loosen, and the fuse indicator ring on the compartment door 112 will turn red, indicating that the fuse needs to be replaced.

[0035] Press the safety compartment button 111, the compartment door 112 flips open, pull out the blown fuse directly, insert a new fuse and close the compartment door 112. The U-shaped spring 113 automatically clamps the end cap, restoring the circuit connection. When disassembly is required, rotate the plug 90° in the opposite direction to pull it out. The sealing structure automatically resets without wear.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aeronautical obstacle light power connection device comprising a connection device body (1), characterized in that: The top of the main body (1) of the connecting device is a socket end (101), and the bottom of the main body (1) of the connecting device is a plug end (102). The socket end (101) is fixed on the lamp holder, and the plug end (102) is connected to the external power cord. A circular groove (103) is provided on the socket end (101), and an L-shaped guide groove (104) is provided on the inner wall of the circular groove (103). The horizontal section of the L-shaped guide groove (104) extends clockwise. A gold-plated annular conductive sheet (105) is installed at the bottom center of the circular groove (103). An annular groove is opened on the outer side of the annular conductive sheet (105) at the bottom of the circular groove (103), and a magnetic fluid sealing ring (106) is embedded in the annular groove. The top end face of the circular groove (103) is provided with a silicone umbrella skirt (107), the silicone umbrella skirt (107) is an outward-turned structure, and the silicone umbrella skirt (107) is 5mm apart from the opening of the L-shaped guide groove (104).

2. An aviation obstacle light power connection device according to claim 1, characterized in that: Two lugs (108) are symmetrically welded on the outer wall of the plug end (102), one of which is located in a position corresponding to the L-shaped guide groove (104).

3. An aviation obstacle light power connection device according to claim 1, characterized in that: The plug end (102) has a number of spring pins (109) arranged in a ring at the center of the end face. The initial protrusion of the spring pins (109) is 2mm, and the full compression is 5mm.

4. An aviation obstacle light power connection device according to claim 1, characterized in that: A hot-swappable safety compartment (110) is provided on the outer wall of the middle section of the main body (1) of the connecting device. A button (111) is installed above the hot-swappable safety compartment (110). A door (112) is rotatably connected to the hot-swappable safety compartment (110). The button (111) drives the door (112) to open and close.

5. The aviation obstruction light power connection device according to claim 4, characterized in that: A U-shaped spring (113) is installed at the top of the hot-swappable safety compartment (110), with the opening of the U-shaped spring (113) facing upwards, and a fuse end cap (114) is installed at the bottom of the U-shaped spring (113).